CN110890668A - High-reliability cable connector - Google Patents

Abstract

The invention discloses a high-reliability cable connector, which belongs to the technical field of railway corollary equipment and comprises an aviation plug, a corrugated pipe and a locking joint sleeved outside the corrugated pipe, wherein the locking joint is assembled and connected with the end part of the aviation plug, and the end part of the aviation plug is provided with a sealing ring; still including demountable assembly in the clamp spare on the bellows, one side of this clamp spare support tightly in locking joint's inside and the opposite side through this clamp spare order about the tip of bellows with the sealing washer offsets tightly to reach and have good water-proof effects and sealed effect, and possess good durability and life, with realize its intensity height, anti hit and beat the purpose that the vibration is strikeed and waterproof performance is superior.

Description

High-reliability cable connector

Technical Field

The invention belongs to the technical field of railway corollary equipment, and particularly relates to a high-reliability cable connector.

Background

Along with the development of the Chinese railway freight car, the freight car is additionally provided with intelligent ECP (intelligent electronic control unit), an antiskid device, intelligent fault detection equipment and other intelligent equipment, and the intelligent equipment needs reliable power supply technologies at that time, wherein a power supply cable needs to be designed for water resistance, impact resistance and vibration impact.

In order to ensure the safe use of the power supply cable, a protection hose needs to be sleeved outside the cable to protect the cable, a common winding type iron sheet protection hose and a metal woven hose are mainly adopted in the prior art, and in the actual use process, the common winding type iron sheet protection hose is formed by winding iron sheet strips by using a mold and overlapping the iron sheet strips layer by layer, so that the common winding type iron sheet protection hose can be disconnected by bending with one hand in the actual application process, the use cost is increased, and meanwhile, the common winding type iron sheet protection hose needs to be frequently maintained and replaced in time; compared with the common winding type iron sheet protection hose, the metal braided hose has higher toughness and is not easy to break, but has poor sealing property, cannot play a good waterproof role on external water, and cannot ensure the use safety of a cable in the use process.

In view of the above problems, it is desirable to improve the power supply cable for railway freight cars to meet higher requirements.

Disclosure of Invention

In view of the above, in order to solve the above problems in the prior art, an object of the present invention is to provide a high reliability cable connector, which has good waterproof function and sealing effect, good durability and long service life, and achieves the purposes of high strength, impact resistance, vibration impact resistance and excellent waterproof performance.

The technical scheme adopted by the invention is as follows: a high-reliability cable connector comprises an aviation plug, a corrugated pipe and a locking joint sleeved outside the corrugated pipe, wherein the locking joint is assembled and connected with the end part of the aviation plug, and the end part of the aviation plug is provided with a sealing ring; the sealing ring is characterized by further comprising a clamping hoop part detachably assembled on the corrugated pipe, one side of the clamping hoop part abuts against the inside of the locking joint and the end part of the corrugated pipe is driven to abut against the sealing ring through the other side of the clamping hoop part.

Further, the aviation plug includes the main part shell, the one end outside of this main part shell through the screw thread with locking joint connects, and the inside cover of main part shell has the lantern ring, sealed pad and packing ring in proper order, the packing ring with be equipped with between the bellows the sealing washer to the realization can provide good tight effort of support to the sealing washer under the effect of cooperation clamp spare.

Furthermore, the matching surface between the gasket and the lantern ring is an inclined surface.

Further, the clamp piece includes two at least clamp casings, each the clamp casing splices in proper order and forms ring structure, and the inner ring side of this ring structure is established to annular notch and this annular notch with the crest structure phase-match of bellows.

Furthermore, the port edge of the annular notch is designed to be an outward-expanding structure, so that the clamp piece can be assembled on the corrugated pipe quickly.

Further, the medial surface of annular notch is established to coarse friction surface, increases the frictional force between clamp casing and the bellows, prevents at the assembly initial stage that the clamp casing easily takes place to drop.

Further, the clamp casing is equipped with two and is semicircle form, and inlays in the clamp casing and be equipped with rather than assorted elastic rubber pad, promotes the cushioning effect between clamp casing and the bellows.

Furthermore, the one end of clamp casing is equipped with outstanding public head, and the inside of the other end is equipped with the countersunk head notch that matches with public head to prevent that the clamp spare from taking place dislocation, aversion etc. between each clamp casing when receiving external effort.

Furthermore, an elastic sheet extends from the side surface of one end of the hoop shell, a clamping hole is formed in the elastic sheet, and a clamping head correspondingly matched with the clamping hole is arranged on the side surface of the other end of the hoop shell, so that the hoop shell is prevented from falling easily during assembly; on the other hand, the hoop shell is convenient to be properly stored after being detached.

Furthermore, the corrugated pipe assembly further comprises a spring sleeved outside the corrugated pipe, and two ends of the spring are respectively abutted against the clamping piece and the locking connector so as to improve the assembling firmness between the locking connector and the aviation plug.

The invention has the beneficial effects that:

1. by adopting the high-reliability cable connector disclosed by the invention, the sealing ring is additionally arranged between the corrugated pipe and the aviation plug, and meanwhile, under the condition of matching with the clamping piece, the end part of the corrugated pipe can be firmly propped against the surface of the sealing ring, and the sealing ring is extruded by pressure so as to prevent external water from entering the interior.

2. By adopting the high-reliability cable connector disclosed by the invention, the corrugated pipe is used for protecting the outside of the cable, and the corrugated pipe is integrally processed by adopting a mould, so that compared with a common winding type iron sheet protection hose, the high-reliability cable connector has higher strength and better reliability; and the corrugated pipe is adopted for armor protection, so that the cable can be effectively protected from being damaged when the cable is subjected to external vibration, impact and foreign matter collision.

3. By adopting the high-reliability cable connector disclosed by the invention, meanwhile, the sealing structure at the joint part of the cable connector is uniquely designed, and the clamp piece is uniquely designed and matched with the clamp piece, so that the problems of connection and sealing between the corrugated pipe and the aviation plug are solved.

Drawings

Fig. 1 is a schematic view of an overall structure of a high-reliability cable connector provided by the present invention;

fig. 2 is a schematic view of the overall structure of a ferrule inembodiment 1 of the high-reliability cable connector provided by the present invention;

fig. 3 is a schematic structural view of a ferrule housing inembodiment 1 of the high-reliability cable connector provided by the present invention;

fig. 4 is a schematic view of the overall structure of a ferrule inembodiment 2 of the high-reliability cable connector provided by the present invention;

fig. 5 is a schematic view of the overall structure of the ferrule housing inembodiment 2 of the high-reliability cable connector provided by the present invention;

fig. 6 is a schematic view of the entire structure of the ferrule inembodiment 3 of the high-reliability cable connector provided by the present invention;

fig. 7 is a schematic structural view of a ferrule housing inembodiment 3 of the high-reliability cable connector provided by the present invention;

the drawings are labeled as follows:

1-corrugated pipe, 2-locking joint, 3-sealing ring, 4-gasket, 5-lantern ring, 6-main body shell, 7-cable, 8-hoop shell, 9-sealing gasket, 10-outward-expanding structure, 11-male head, 12-countersunk notch, 13-elastic sheet, 14-clamping head and 15-clamping hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, or the orientation or the positional relationship which is usually understood by those skilled in the art, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be further noted that the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases by those skilled in the art; the drawings in the embodiments are used for clearly and completely describing the technical scheme in the embodiments of the invention, and obviously, the described embodiments are a part of the embodiments of the invention, but not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Example 1

The present embodiment specifically provides a high-reliability cable connector to achieve good waterproof effect forcable 7 transmission of a freight train, which includes an aviation plug, where the aviation plug is an electromechanical element connected to an electrical line, and is widely used in power transmission, and details thereof are not repeated here.

As shown in fig. 1, the corrugated pipe comprises acorrugated pipe 1 and alocking joint 2 sleeved outside thecorrugated pipe 1, wherein thecorrugated pipe 1 is made of stainless steel and is integrally processed into the stainless steel corrugated pipe through a mold, and compared with a common winding type iron sheet protection hose, the corrugated pipe has higher strength and better reliability; thelocking joint 2 is assembled and connected with the end part of the aviation plug, the end part of the aviation plug is provided with asealing ring 3 in a matching mode, and thesealing ring 3 is used for forming sealed connection between thecorrugated pipe 1 and the end part of the aviation plug; still include demountable assembly in the clamp spare onbellows 1, one side of this clamp spare support tightly in the inside oflocking joint 2 and through the opposite side of this clamp spare order about the tip ofbellows 1 with sealingwasher 3 supports tightly, because sealingwasher 3 carries out good sealing between the tip ofbellows 1 and the tip of aviation plug, forms good shutoff effect to the clearance between the two to prevent outside moisture entering, with the relatively poor problem of leakproofness between the tip of solvingbellows 1 and aviation plug. The stainless steel corrugated pipe has high strength and can be bent and deformed, and when the stainless steel corrugated pipe is subjected to vibration impact or collision with foreign matters, deformation is generated to buffer, so that internal cables are protected from being damaged; the stainless steel corrugated pipe is manufactured by seamless welding of the whole steel plate, and the strength and the sealing performance are greatly superior to those of the common winding type iron sheet protection hose; in order to further enhance the waterproof effect and the beautiful appearance, the stainless steel corrugated pipe is further coated with a layer of plastic pipe for secondary protection.

For the better cooperation effect of the tip that further realizes aviation plug can with sealingwasher 3, this aviation plug includes main part shell 6, the outside screw thread that passes through of one end of this main part shell 6 withlocking joint 2 is connected and inside the cover in proper order of this tip of main part shell 6 haslantern ring 5, sealedpad 9 and packingring 4, packingring 4 with be equipped with betweenbellows 1sealing washer 3, the other end of this main part shell 6 is then the plug terminal that is used for pegging graft. In order to reduce the assembly difficulty between thegasket 4 and thelantern ring 5, the matching surface between thegasket 4 and thelantern ring 5 is an inclined surface, and under the structure, even if thegasket 4 and thelantern ring 5 are squeezed by external pressure, the deformation is not easy to directly occur.

As shown in fig. 2 and 3, the clamp member includes twoclamp housings 8, two theclamp housings 8 splice each other to form the ring structure, and the inner ring side of this ring structure is established to annular notch and this annular notch and the crest structure phase-match ofbellows 1, at the actual installation in-process, with two theclamp housings 8 are nested respectively in the crest structure ofbellows 1, and two the tip ofclamp housings 8 contacts each other in order to splice into the ring structure, and this ring structure and locking connect 2 between interact for transmitting the locking force of lockingjoint 2 forbellows 1.

In order to ensure that thehoop shell 8 can be quickly embedded in the wave crest structure of thecorrugated pipe 1, the edge of the port of the annular notch can be provided with an outward-expandingstructure 10, and the outward-expandingstructure 10 is more beneficial to embedding thehoop shell 8 in the wave crest structure of thecorrugated pipe 1; because when carrying out cable connector fitting, need earlier with 8 nestings of clamp casing on the crest structure ofbellows 1, the clamp casing suit that forms ofclamp casing 8 is in lockingjoint 2's inside again, for preventing wheninstallation locking joint 2 ordismantlement locking joint 2,single clamp casing 8 self easily takes place to drop, in this embodiment, the adoption will the medial surface of annular groove is established to coarse friction surface to the frictional force size that exists between the crest structure of increaseclamp casing 8 andbellows 1 plays the effect of supplementary chucking.

In order to prevent the threaded connection part between thelocking connector 2 and the aviation plug from being loosened easily, the locking connector further comprises a spring sleeved outside thecorrugated pipe 1, the attached drawing is not shown, two ends of the spring respectively abut against the clamping piece and the inside of thelocking connector 2, and the spring provides enough acting force for thelocking connector 2 to prevent thelocking connector 2 and the aviation plug from being loosened in the later use process.

Example 2

As shown in fig. 4 and 5, on the basis ofembodiment 1, in order to reduce the processing cost of theclamp housing 8 and the problem of later-stage adaptability, twoclamp housings 8 are set to be the same in size and shape, that is, the half part of the circular ring-shaped structure, and meanwhile, an elastic rubber pad matched with the two clamp housings is embedded in theclamp housing 8, so as to reduce the acting force of direct contact between theclamp housings 8 and thecorrugated pipe 1, and prevent the wave crest structure of thecorrugated pipe 1 from being damaged or damaged under the condition of direct stress.

In order to ensure that the twohoop shells 8 are not mutually dislocated when the hoop is pressed by the outside, the surface acting force of the hoop on thesealing ring 3 is more uniform, one end of thehoop shell body 8 is provided with a protrudingmale head 11, the inside of the other end is provided with acountersunk head notch 12 matched with themale head 11, when the twoclip shells 8 are assembled, themale end 11 of theupper clip shell 8 is aligned with thefemale slot 12 of thelower clip shell 8 at its other end and inserted, assembled in this way to form a clip, the bordering end faces of the twoclip shells 8 are now fitted by themale 11 and thecountersunk 12, when the hoop member is pushed at the later stage, the twohoop shells 8 can not be mutually staggered, so as to ensure that the stress effect of thesealing ring 3 is more uniform, and the sealing effect of thesealing ring 3 is better.

Example 3

As shown in fig. 6 and 7, on the basis ofembodiment 1 orembodiment 2, in order to further ensure that the twoband housings 8 form a band member after assembly, in order to prevent the twoband housings 8 constituting the band member from falling off easily when thelocking joint 2 is assembled or disassembled, and at the same time, after the band member is disassembled, the band member still maintains an assembled state, and a situation that asingle band housing 8 is lost does not occur, the specific structure is designed as follows:

the one end side ofclamp casing 8 extendsflexure strip 13 and has seted upcard hole 15 onflexure strip 13, and thisflexure strip 13 is integrated into one piece onclamp casing 8, is equipped with thedop 14 that corresponds the matching withcard hole 15 on the side of the other end, and thecard hole 15 thatflexure strip 13 was last under the elastic action of self can be blocked into in thedop 14. In practical application, the installation process is as follows:

theupper clamp shell 8 and thelower clamp shell 8 are aligned relatively, theupper clamp shell 8 and thelower clamp shell 8 are pressed simultaneously, at the moment, theelastic sheet 13 on one side is aligned with theclamping head 14 of theother clamp shell 8 on the side and clamped under the elastic action to form a clamp piece, at the moment, the bordering end faces of the twoclamp shells 8 are locked under the mutual matching action of theelastic sheet 13 and theclamping head 14, and when the clamp piece is installed in the previous period, the twoclamp shells 8 forming the clamp piece are not easy to fall off; after the hoop member is disassembled at a later stage, the hoop member can still be maintained in a combined state, the hoop member is easy to store, and the falling of a certainsingle hoop shell 8 cannot occur.

The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.

Claims (10)

1. A high-reliability cable connector comprises an aviation plug and is characterized by further comprising a corrugated pipe and a locking joint sleeved outside the corrugated pipe, wherein the locking joint is assembled and connected with the end part of the aviation plug, and the end part of the aviation plug is provided with a sealing ring in a matching mode; the sealing ring is characterized by further comprising a clamping hoop part detachably assembled on the corrugated pipe, one side of the clamping hoop part abuts against the inside of the locking joint and the end part of the corrugated pipe is driven to abut against the sealing ring through the other side of the clamping hoop part.

2. The high-reliability cable connector according to claim 1, wherein the aviation plug comprises a main body shell, the exterior of one end of the main body shell is connected with the locking joint through threads, a collar, a sealing gasket and a gasket are sequentially sleeved inside the main body shell, and the sealing ring is arranged between the gasket and the corrugated pipe.

3. The high-reliability cable connector according to claim 2, wherein the mating surface between the washer and the collar is provided with an inclined surface.

4. The high-reliability cable connector according to claim 1, wherein the ferrule member comprises at least two ferrule housings, each of the ferrule housings are sequentially spliced to form an annular structure, an inner ring side of the annular structure is provided with an annular notch, and the annular notch is matched with a wave crest structure of the corrugated pipe.

5. The high reliability cable connector according to claim 4, wherein a port edge of said annular notch is provided with a flared structure.

6. The high reliability cable connector according to claim 4, wherein an inner side surface of said annular notch is provided as a rough friction surface.

7. The high-reliability cable connector according to claim 4, wherein the band housing is provided with two and all semi-circular shapes, and the band housing is embedded with an elastic rubber pad matched with the band housing.

8. The high reliability cable connector of claim 7, wherein the ferrule housing has a male protruding end at one end and a female recess mating with the male end at the other end.

9. The high-reliability cable connector as claimed in claim 7, wherein the band housing has a resilient portion extending from a side surface thereof, the resilient portion having a locking hole, and a locking portion corresponding to the locking hole is formed on a side surface of the other end thereof.

10. The high-reliability cable connector according to claim 1, further comprising a spring sleeved outside the corrugated tube, wherein both ends of the spring are respectively abutted against the inside of the ferrule and the locking joint.

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