Disclosure of utility model
The application aims to solve the problem that an elastic framework is difficult to flatten in the prior art to a certain extent, so as to provide a sucker with good adsorption force. To this end, the application provides a suction cup comprising:
One side of the adsorbing body is a plane part which is used for being attached to the surface to be adsorbed, and the other side of the adsorbing body comprises a connector in the middle part and a first abutting part of the outer edge;
The pressure plate comprises a connecting part connected to the connector and a first pressure part used for pressing the first abutting part;
The hardness of the first abutting part is greater than that of the plane part, so that when the pressure plate is driven to be far away from the adsorbed surface by the connector to drive the middle part of the plane part to deform and far away from the adsorbed surface, the part, opposite to the first abutting part, of the plane part is back-pressed on the adsorbed surface, and a negative pressure cavity is formed between the plane part and the adsorbed surface.
In some embodiments, the platen further comprises a body portion shaped as a housing, the first pressure portion is shaped as an annulus on an outer edge of the body portion toward the adsorbent, and the first abutment portion is shaped as an annulus opposite the first pressure portion.
In some embodiments, the adsorbing body is provided with a second abutting portion, the second abutting portion has the same hardness as the first abutting portion, and is formed into a concentric ring shape on the same side of the adsorbing body as the first abutting portion, and the pressure plate further comprises a second pressure portion abutting against the second abutting portion.
In some embodiments, an annular rib facing the adsorbent is disposed in the main body, and the second pressure portion is located on an annular surface on one side of the adsorbent, and the second pressure portion is located on the same plane as the first pressure portion.
In some embodiments, the connecting portion is formed into a cylindrical bushing, a bearing hole extending along a direction perpendicular to the plane portion is formed in the middle of the main body portion, an internal thread is formed on the inner side of the connecting portion, the connecting head is formed into a stud, when the connecting portion penetrates into the bearing hole and is screwed with the connecting head, the connecting head is pulled in a direction deviating from the adsorbed surface, and then the middle of the plane portion is pulled to be away from the adsorbed surface, so that a negative pressure cavity is formed between the plane portion and the adsorbed surface.
In some embodiments, the outside of the connecting portion is provided with an axially extending rotation stopping rib, the main body portion is provided with a rotation stopping groove on the inner wall of the bearing hole and a baffle plate on the bearing hole, the baffle plate is close to one end of the adsorbing body, when the connecting portion is positioned in the bearing hole, one end of the connecting portion is propped against the baffle plate, and the rotation stopping rib stretches into the rotation stopping groove, so that when the main body portion is rotated by external force, the connecting portion can be driven to rotate, and the connecting head is pulled in a direction deviating from the adsorbed surface.
In some embodiments, the adsorption device further comprises an adjusting piece, wherein a clamping block is arranged on one side, away from the adsorption body, of the connecting portion, when the connecting portion penetrates into the bearing hole, the adjusting piece can be clamped between the clamping block and the main body portion, so that the connecting portion is driven to be away from the adsorbed surface, and the connecting head is pulled to be away from the adsorbed surface in the middle of the plane portion.
In some embodiments, the distance between the clamping block and the end of the connecting portion, which is located at one side of the adsorbing body, is greater than the distance between one side of the main body, which is far away from the adsorbing body, and the baffle, and the adjusting member includes a wedge portion, so that when the connecting portion penetrates into the bearing hole and abuts against the baffle, a gap is formed between the clamping block and the main body, and the wedge portion gradually clamps into the gap between the clamping block and the main body, so as to drive the connecting portion to gradually separate from the adsorbed surface.
In some embodiments, the body portion is provided on the outside with a number of wrenches protruding from the surface of the body portion.
In some embodiments, the adjusting member further comprises a hook thereon to attach the load.
According to the sucker, firstly, the hardness of the first abutting part is set to be larger than that of the plane part, so that when the pressure plate presses the absorber, the deformation amplitude of the first abutting part is smaller than that of the plane part, the deformation amplitude of the part, opposite to the first abutting part, of the plane part is smaller or is not deformed, the outer edge of the plane part is always tightly attached to the absorbed surface, and the tightness of the sucker is improved, so that the absorption force of the sucker is kept; secondly, a second abutting part is arranged on the adsorbing body, and the second abutting part and the first abutting part are concentric rings, so that double-ring sealing is formed, and the tightness of the sucking disc is better ensured; and the negative pressure cavity between the sucking disc and the adsorbed surface is gradually increased by pulling the connector through the adjusting piece, so that the pressure difference between the negative pressure cavity and the outside is increased, and the adsorption force is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic view of a first view of the disclosed sorbent body;
FIG. 2 shows a schematic view of a second view of the disclosed sorbent body;
FIG. 3 illustrates an overall schematic of the platen of the present disclosure;
FIG. 4 illustrates a side cross-sectional view of the platen of the present disclosure;
FIG. 5 illustrates a schematic view of a first view of a body portion of the present disclosure;
FIG. 6 illustrates a schematic view of a second view of the body portion of the present disclosure;
FIG. 7 shows a schematic view of the disclosed connection;
FIG. 8 shows a schematic view of an adjustment member of the present disclosure;
FIG. 9 illustrates an overall schematic view of the suction cup of the present disclosure;
Figure 10 shows an exploded view of the suction cup of the present disclosure.
Reference numerals:
1. the adsorption body comprises an adsorption body, 11, a plane part, 12, a connector, 13, a first abutting part, 14 and a second abutting part;
2. The device comprises a pressure plate, a connecting part, 211, a rotation stopping rib, 212, a clamping block, 22, a first pressure part, 23 and a main body part;
231. load-bearing hole 232, rotation-stopping groove 233, baffle plate 234, spanner 24, second pressure part;
3. 31, wedge-shaped parts, 32 and hooks.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all the directional indicators in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.
In the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "fixed," and the like are to be construed broadly, and for example, "fixed" may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The application is described below with reference to specific embodiments in conjunction with the accompanying drawings:
The application discloses a sucking disc, which comprises an adsorption body 1 and a pressure plate 2, wherein the adsorption body 1 is used for being attached to an adsorbed surface, so that a negative pressure cavity is formed between the sucking disc and the adsorbed surface, the sucking disc is pressed and attached to the adsorbed surface through the air pressure difference between the negative pressure cavity and the outside, the adsorption body 1 is generally composed of soft TPE, silica gel, rubber (vulcanization), PVC and other plastic materials, has better elasticity and flexibility, one side of the adsorption body facing the adsorbed surface is provided with a plane part 11 for being attached to the adsorbed surface, the other side is provided with a connector 12 positioned in the middle of the adsorption body 1 and a first abutting part 13 positioned at the outer edge, and the plane part 11 is attached to the adsorbed surface, and meanwhile, the first abutting part 13 is pressed, so that a sealed cavity is formed between the adsorption body 1 and the adsorbed surface. Therefore, in the process of forming the negative pressure cavity, the absorber 1 needs to be elastically deformed, especially, when the middle part of the absorber 1 is required, and because the absorber 1 needs to be sealed with the absorbed surface, the part of the plane part 11 corresponding to the first abutting part 13 cannot be deformed or only slightly deformed so as to prevent the leak tightness of the negative pressure cavity, therefore, the material of the first abutting part 13 is set to be different from the hardness of the material of the part of the absorber 1 needing to be deformed, for example, hard PVC, silica gel and other materials can be selected, so that when the first abutting part 13 is pressed, the shape retaining capacity of the absorber 1 of the corresponding part is better than other parts, and therefore, no deformation or only slight deformation occurs. In addition, as shown in fig. 3 and 4, the platen 2 is provided with a connecting portion 21 and a first pressure portion 22, the connecting portion 21 is used for being connected with the connector 12 and driving the connector 12 away from the surface to be adsorbed, when the connecting portion 21 is connected with the connector 12, the first pressure portion 22 abuts against the first abutting portion 13 and presses the first abutting portion 13, so that a portion of the planar portion 11 located at the outer edge of the adsorbent 1 is kept in close contact with the surface to be adsorbed, and a negative pressure cavity is formed between the planar portion 11 and the surface to be adsorbed, so that the chuck is adsorbed on the surface to be adsorbed.
Specifically, as shown in fig. 3 to 5, the platen 2 includes a main body portion 23 formed in a housing shape, the housing being opened toward the adsorbent 1, so as to form a circular housing outer edge in a direction toward the adsorbent 1, so that the housing outer edge is in contact with the adsorbent 1 through a circular surface, i.e., the first pressure portion 22, and thus the first abutting portion 13 is formed in a circular shape opposite to the first pressure portion 22. Firstly, the first abutting part 13 is arranged to be annular, the outer edges of the adsorbent 1 can be pressed on the adsorbed surface through the pressed first abutting part 13, so that a circumferentially pressed sealing space is formed on the contact part of the plane part 11 and the adsorbed surface, and the tightness of the adsorbent is structurally ensured, secondly, the first pressure part 22 is arranged to be annular, the whole first abutting part 13 can be uniformly stressed, and therefore the adsorbent 1 cannot generate overlarge deformation of part of the position of the adsorbent 1 caused by uneven stress of part of the position and other positions, and the tightness is lost. Obviously, since the first abutting portion 13 is made of a hard material, before the first abutting portion 13 is not deformed, the whole annular shape is substantially an integral body, so that the first abutting portion 13 is not required to be pressed at all positions in the circumferential direction, the first abutting portion 13 is only required to be ensured to bear force at intervals in the circumferential direction, the distance between two continuous stress points is not excessively large, for example, the first pressure portion 22 can be arranged to be a plurality of bulges protruding to the first abutting portion 13 at the annular portion, and the bulges can be formed by digging out part of the materials, so that the dead weight of the suction cup is reduced, but the spacing distance of the plurality of bulges of the first pressure portion 22 and the hardness and elastic deformability of the materials of the first abutting portion 13 and the rest of the suction body 1 are required to be high.
Obviously, since the whole flat portion 11 needs to be made of soft rubber, no matter what way the connector 12 is stretched, the flat portion 11 corresponding to the first abutting portion 13 will be elastically deformed, so in some embodiments, as shown in fig. 1, the second abutting portion 14 is further provided on the adsorbent 1, the second abutting portion 14 and the first abutting portion 13 are concentric in ring shape, and have the same hardness, and are located on the same side of the adsorbent 1, when the platen 2 presses the first abutting portion 13, the second abutting portion 14 is pressed at the same time, so as to form a double-ring seal for the outer edge of the sealing cavity between the flat portion 11 and the adsorbed surface, so as to achieve a better sealing effect, however, obviously, since the second abutting portion 14 is pressed to press the adsorbent 1, the ring-shaped radius of the second abutting portion 14 is generally smaller than that of the first abutting portion 13, and therefore, the adverse effect of further sealing by the second abutting portion 14 may be such that the sealing cavity between the flat portion 11 and the adsorbed surface can be expanded, but the general deformation of the adsorbent 1 is difficult to achieve in the most obvious way. Similarly, in order to press the first contact portion 13, the second contact portion 14 is pressed, and as shown in fig. 5, the platen 2 is further provided with a second pressing portion 24 that can be brought into contact with the second contact portion 14.
Further, as shown in fig. 5, in order that when the first pressure portion 22 presses against the first abutting portion 13, the second pressure portion 24 can also press against the second abutting portion 14, inside the housing of the main body portion 23, an annular rib is protruded toward the direction of the adsorbent body 1, that is, the annular rib is concentric with the housing rim of the main body portion 23, and when the protruding height of the annular rib reaches such a level that the annular surface of the annular rib on the adsorbent body 1 side is on the same plane as the first pressure portion 22, the first pressure portion 22 and the second pressure portion 24 can be simultaneously pressed against the first abutting portion 13 and the second abutting portion 14, respectively, and the pressures of the first pressure portion 22 and the second pressure portion 24 against the first abutting portion 13 and the second abutting portion 14 are equal or close, so that the pressing failure of the first abutting portion 13 or the second abutting portion 14 is avoided.
In some embodiments, as shown in fig. 4-7, the connecting portion 21 is a cylindrical bushing, and is installed in a bearing hole 231 extending in a direction perpendicular to the plane portion 11 on the main body portion 23, and the connecting portion 21 and the connecting head 12 are connected by screwing, when the screwing degree of the connecting portion 21 and the connecting head is greater, the connecting head 12 is driven to be further away from the adsorbed surface by the connecting portion 21, and at this time, the edge of the adsorbent 1 is still pressed on the adsorbed surface, so that the space of the sealed cavity between the two is greater, and the pressure difference between the cavity and the outside is increased.
Obviously, the screwing mode is not the only connecting mode between the connecting part 21 and the connector 12, and can also be a clamping mode or the like, but the screwing mode can enable the pulling action of the connecting part 21 on the connector 12 to be continuous and smooth, so that the sealing deterioration between the adsorbing body 1 and the adsorbed surface, which is possibly caused by the moving mutation of the connector 12, is avoided when other modes are connected. In order to achieve the above purpose, the connection portion 21 and the connection head 12 are preferably screwed by providing an internal thread inside the connection portion 21, and the connection head 12 is provided in a screw shape, and when the connection portion 21 penetrates into the bearing hole 231, the connection head 12 is screwed with the connection head 12, thereby pulling the connection head 12.
Further, in order to facilitate the screwing of the connection portion 21 and the connector 12, in some embodiments of the present utility model, the connection portion 21 is driven by rotating the main body portion 23, so that the connection portion 21 and the connector 12 are continuously screwed, and it is required to limit the connection portion 21 and the main body portion 23 in both the circumferential direction of the planar portion 11 and the direction perpendicular to the surface to be adsorbed, so, as shown in fig. 5 and 6, a baffle 233 is provided on the end of the main body portion 23, which is located near the adsorbing body 1, to limit the connection portion 21 in the direction perpendicular to the surface to be adsorbed, a rotation stopping groove 232 is provided on the inner wall of the main body portion 23, which is located at the bearing hole 231, and, as shown in fig. 7, an axially extending rotation stopping rib 211 is provided on the outer side of the connection portion 21, and the rotation stopping rib 211 may extend into the rotation stopping groove 232 to limit the connection portion 21 in the circumferential direction of the planar portion 11. When the main body 23 is rotated by external force, the connecting part 21 is driven to rotate by the cooperation of the rotation stopping ribs 211 and the rotation stopping grooves 232, so that the connecting part 21 is continuously in threaded connection with the connector 12, the connector 12 is driven to be gradually far away from the adsorbed surface, so that a uniform force application is provided, and the operation mode is simpler, so that the negative pressure cavity between the adsorbent 1 and the adsorbed surface can be gradually increased by rotating the main body 23.
Further, since the main body 23 is generally formed into a housing with a circular outer side, in order to facilitate the user to grip the platen 2 for rotation, as shown in fig. 3, 5 and 6, a plurality of wrenches 234 are further provided on the outer side of the main body 23, and the wrenches 234 protrude from the outer surface of the main body 23 and are circumferentially arranged along the outer side of the main body 23. Of course, the wrench may be formed as a recess on the outer side of the main body 23, or a combination of the recess and the protrusion, or the main body 23 may be directly configured in a shape similar to the stripe on the outer side of the bottle cap, so as to facilitate the user to rotate the main body 23.
In some embodiments, in order to further adjust the adsorption force of the suction cup, the suction cup of the present utility model further includes an adjusting member 3, on one hand, the adjusting member 3 is used for pulling the connecting portion 21 away from the connector 12, and on the other hand, for pressing the edge of the adsorbing body 1 against the adsorbed surface, for this purpose, as shown in fig. 4 and 7, a clamping block 212 is disposed on a side of the connecting portion 21 away from the adsorbing body 1, when the connecting portion 21 is introduced into the bearing hole 231, a gap is formed between the clamping block 212 and the main body 23, at this time, by clamping the adjusting member 3 between the clamping block 212 and the main body 23, one side of the adjusting member 3 abuts against the clamping block 212, and one side abuts against the main body 23, thereby realizing that the connecting portion 21 can be pulled to achieve pulling of the connecting head 12, and the edges of the adsorbing body 1 can be pressed against the first abutting portion 13 and the second abutting portion 14 by abutting against the main body 23. Therefore, the thickness of the adjusting member 3 between the clamping block 212 and the main body 23 is adjustable, for example, the adjusting member 3 is an expandable member or a plurality of sheets are stacked to change the size of the adjusting member, or as shown in fig. 8, a wedge-shaped portion 31 is provided on the adjusting member 3, that is, at least a part of the structure of the adjusting member 3 is formed into a shape with gradually increased thickness, a thinner portion of the wedge-shaped portion 31 is inserted between the clamping block 212 and the main body 23, and then the adjusting member 3 is gradually pressed, so that the thickness of a portion of the wedge-shaped portion 31 between the clamping block 212 and the main body 23 is gradually increased, and further the effect of pressing the main body 23 and pulling the connecting portion 21 is simultaneously achieved. For this reason, as shown in fig. 4, when the connection part 21 is fitted into the bearing hole 231, a gap is formed between the latch 212 and the main body part 23, that is, a distance between the latch 212 and an end of the connection part 21 on the side of the adsorbent 1 is restricted to be greater than a distance between the main body part 23 on the side away from the adsorbent 1 and the shutter 233, so that when the connection part 21 abuts against the shutter 233, the latch 212 is exposed to the outside of the main body part 23 and forms a gap with the main body part 23. Meanwhile, preferably, the clamping block 212 is an annular surface at one end of the connecting portion 21, two wedge-shaped portions 31 are arranged, when the adjusting piece 3 is clamped between the clamping block 212 and the main body portion 23, the two wedge-shaped portions 31 are symmetrically clamped at two sides of the connecting portion 21, so that the adjusting piece 3 pulls the connecting portion 21 relatively balanced, and inclination or deformation of the connecting portion 21 caused by asymmetric tensile force is avoided.
The sucker can be used for hanging articles and bearing articles, namely, the sucker is generally adsorbed on a vertical plane, and the articles to be hung or borne and the sucker are kept relatively fixed in the vertical direction, so that the hanging or bearing is completed. Thus, as shown in fig. 8, 9 and 10, the adjusting member 3 is provided with a hook 32, and the hook 32 may be provided as a part of the fixing on the adjusting member 3 or may be provided as a part detachable or movable from the adjusting member 3. It should be noted that, when the wedge-shaped portion 31 is provided on the adjusting member 3, the direction of the pull force of the hung article when the hook 32 is hung on the article should be the same as the direction in which the wedge-shaped portion 31 is clamped between the clamping block 212 and the main body portion 23, so as to avoid that the hook 32 is pulled by the hung article to separate the adjusting member 3 from the clamping block 212 and the main body portion 23, and the sucking disc and the article drop. Similarly, the adjusting member 3 may also be provided with a mounting seat for directly mounting and combining with other articles or forming a device such as a rack by a plurality of suckers to bear articles.