技术领域technical field
本发明涉及医用器具，尤其涉及一种三升袋挤压器。The invention relates to a medical appliance, in particular to a three-liter bag extruder.
背景技术Background technique
三升袋是临床上常用的肠外营养制剂，是将机体所需的碳水化合物、氨基酸、脂肪乳、维生素、微量元素、电解质和水等七大营养要素按比例在严格无菌的环境下按要求配制于3L营养袋中,然后将其经外周静脉或中心静脉输入机体参与血循环。这种全合一营养液的配制方式消除了传统配制方式的弊端,使各种营养底物搭配更合理,能在同一时间将各种营养物质输入体内,降低了某些高渗液体的渗透压及刺激性,降低了细菌污染与空气栓塞的发生率，由于三升袋内剂量较大，输入时间较长，其内部的营养液容易沉降，影响人体对营养物质的吸收。The three-liter bag is a commonly used parenteral nutrition preparation in clinical practice. It is the seven major nutritional elements required by the body, such as carbohydrates, amino acids, fat emulsions, vitamins, trace elements, electrolytes and water, in proportion to the requirements in a strict aseptic environment. It is prepared in a 3L nutrition bag, and then it is infused into the body through peripheral vein or central vein to participate in blood circulation. This all-in-one nutrient solution preparation method eliminates the disadvantages of the traditional preparation method, makes the combination of various nutrient substrates more reasonable, can input various nutrients into the body at the same time, and reduces the osmotic pressure of some hypertonic liquids. and irritation, reducing the incidence of bacterial contamination and air embolism. Due to the large dose in the three-liter bag and the long input time, the nutrient solution inside it is easy to settle, which affects the absorption of nutrients by the human body.
发明内容Contents of the invention
有鉴于此，本发明的目的是提供一种三升袋挤压器，能够不停的挤压三升袋，保持三升袋内营养液的均匀，利于人体对营养物质的吸收，自动化程度高，无需专人看护，实用性强，使用性能好。In view of this, the purpose of the present invention is to provide a three-liter bag squeezer, which can continuously squeeze the three-liter bag, keep the nutrient solution in the three-liter bag evenly, facilitate the absorption of nutrients by the human body, have a high degree of automation, and do not need special personnel Nursing, strong practicability and good performance.
本发明的三升袋挤压器，包括后侧板、前侧板、挤压块和驱动组件；所述前侧板连接于后侧板并与后侧板之间形成可放置三升袋的空隙；所述挤压块以能够伸进前侧板与后侧板之间空隙内的方式活动连接于前侧板；所述驱动组件安装于前侧板用于驱动挤压块往复运动进而对放置于前侧板与后侧板之间空隙内的三升袋进行反复的挤压。The three-liter bag extruder of the present invention includes a rear side plate, a front side plate, an extrusion block and a driving assembly; the front side plate is connected to the rear side plate and forms a space between the front side plate and the rear side plate where a three-liter bag can be placed; The extrusion block is movably connected to the front side plate in a manner that can extend into the gap between the front side plate and the rear side plate; the drive assembly is installed on the front side plate to drive the extrusion block to reciprocate and then place the The three-liter bag in the gap between the front side plate and the rear side plate is repeatedly squeezed.
进一步，所述挤压块滑动连接于前侧板；所述驱动组件包括用于推动挤压块滑动的凸轮轴和用于驱动凸轮轴转动的驱动电机。Further, the extrusion block is slidably connected to the front side plate; the drive assembly includes a camshaft for pushing the extrusion block to slide and a drive motor for driving the camshaft to rotate.
进一步，所述挤压块至少为两个并且沿水平方向均匀排列。Further, there are at least two extruded blocks and they are evenly arranged along the horizontal direction.
进一步，所述驱动电机的输出轴与凸轮轴垂直，驱动电机的输出轴上固定有蜗杆；凸轮轴通过花键与蜗杆连接形成涡轮蜗杆机构。Further, the output shaft of the drive motor is perpendicular to the camshaft, and a worm is fixed on the output shaft of the drive motor; the camshaft is connected to the worm through a spline to form a worm gear mechanism.
进一步，所述挤压块与前侧板之间设有复位弹簧；所述复位弹簧套于挤压块外部并弹性支撑于挤压块和前侧板之间。Further, a return spring is provided between the extrusion block and the front side plate; the return spring is sleeved outside the extrusion block and elastically supported between the extrusion block and the front side plate.
进一步，所述前侧板通过连接板竖直滑动连接于后侧板；后侧板上设有用于与连接板滑动连接的滑轨；连接板上对应滑轨设有滑槽；连接板上对应其滑槽底部还设有可单自由度转动的螺杆；所述滑轨的顶面设有与螺杆的外螺纹相卡合的卡齿。Further, the front side plate is vertically slidably connected to the rear side plate through the connection plate; the rear side plate is provided with a slide rail for sliding connection with the connection plate; the corresponding slide rail on the connection plate is provided with a chute; The bottom of the chute is also provided with a screw that can rotate with a single degree of freedom; the top surface of the slide rail is provided with locking teeth that engage with the external thread of the screw.
进一步，所述后侧板的前侧面设有用于悬挂三升袋的挂钩。Further, a hook for hanging a three-liter bag is provided on the front side of the rear side plate.
本发明的有益效果是：本发明的三升袋挤压器，能够不停的挤压三升袋，保持三升袋内营养液的均匀，利于人体对营养物质的吸收，自动化程度高，无需专人看护，实用性强，使用性能好。The beneficial effects of the present invention are: the three-liter bag squeezer of the present invention can continuously squeeze the three-liter bag, keep the nutrient solution in the three-liter bag uniform, facilitate the absorption of nutrients by the human body, have a high degree of automation, and do not need special care. Strong practicability and good performance.
附图说明Description of drawings
图1为本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2为图1的俯视图。FIG. 2 is a top view of FIG. 1 .
具体实施方式Detailed ways
图1为本发明的结构示意图；图2为图1的俯视图，本实施例的三升袋挤压器，包括后侧板1、前侧板2、挤压块3和驱动组件；所述前侧板2连接于后侧板1并与后侧板1之间形成可放置三升袋的空隙；所述挤压块3以能够伸进前侧板2与后侧板1之间空隙内的方式活动连接于前侧板2；所述驱动组件安装于前侧板2用于驱动挤压块3往复运动进而对放置于前侧板2与后侧板1之间空隙内的三升袋进行反复的挤压，使用时将三升袋放置于前侧板2和后侧板1之间空隙内，通过驱动组件驱动挤压块3反复的挤压三升袋，保持三升袋内营养液的均匀；挤压块3活动连接于前侧板2是指挤压块3滑动连接于前侧板2或者挤压块3通过转轴转动连接于前侧板2，挤压块3通过转轴转动连接于前侧板2时可利用挤压块3转动时部分结构伸进前侧板2与后侧板1之间空隙内对三升袋进行挤压。Fig. 1 is a schematic structural view of the present invention; Fig. 2 is a top view of Fig. 1, and the three-liter bag extruder of the present embodiment includes a rear side plate 1, a front side plate 2, an extruding block 3 and a driving assembly; the front side The board 2 is connected to the rear side board 1 and forms a gap between the rear side board 1 and a three-liter bag; Connected to the front side plate 2; the drive assembly is installed on the front side plate 2 to drive the extrusion block 3 to reciprocate and then repeatedly squeeze the three-liter bag placed in the gap between the front side plate 2 and the rear side plate 1 When in use, place the three-liter bag in the gap between the front side plate 2 and the rear side plate 1, and drive the extrusion block 3 to repeatedly squeeze the three-liter bag through the driving assembly to keep the nutrient solution in the three-liter bag even; the extrusion block 3 Flexible connection to the front side plate 2 means that the extruding block 3 is slidably connected to the front side plate 2 or the extruding block 3 is connected to the front side plate 2 through the rotating shaft, and the extruding block 3 is connected to the front side plate 2 through the rotating shaft When the extruding block 3 is rotated, part of the structure can be stretched into the gap between the front side plate 2 and the rear side plate 1 to squeeze the three-liter bag.
本实施例中，所述挤压块3滑动连接于前侧板2；所述驱动组件包括用于推动挤压块3滑动的凸轮轴4和用于驱动凸轮轴4转动的驱动电机5，凸轮轴4通过轴承和轴承座6转动连接于前侧板2；凸轮轴4上对应挤压块3设有凸轮，凸轮为偏心轮结构，凸轮轴4通过套装于其偏心轮外圆的连杆连接于挤压块3，连杆与偏心轮之间通过轴承转动连接，连杆与挤压块3之间通过销轴转动连接，避免偏心轮外圆直接作用于挤压块3，能大幅降低磨损和噪声，延长使用寿命，提高使用性能，同时连杆对挤压块3产生推拉作用，无需另外设置复位件对挤压块3复位，能够简化结构，降低制造成本；驱动电机5采用电池供电或外接电源插头或者二者相结合的方式，均能实现本发明的目的。In this embodiment, the extruding block 3 is slidably connected to the front side plate 2; the drive assembly includes a camshaft 4 for pushing the extruding block 3 to slide and a driving motor 5 for driving the camshaft 4 to rotate. Shaft 4 is rotationally connected to front side plate 2 through bearings and bearing housing 6; camshaft 4 is provided with a cam corresponding to extrusion block 3, and the cam is an eccentric wheel structure, and camshaft 4 is connected by a connecting rod fitted on the outer circle of the eccentric wheel In the extrusion block 3, the connecting rod and the eccentric wheel are rotatably connected by bearings, and the connecting rod and the extrusion block 3 are rotatably connected by a pin shaft, so as to prevent the outer circle of the eccentric wheel from directly acting on the extrusion block 3, which can greatly reduce wear and noise, prolong the service life and improve the performance. At the same time, the connecting rod has a push-pull effect on the extrusion block 3, and there is no need to set an additional reset member to reset the extrusion block 3, which can simplify the structure and reduce manufacturing costs; the driving motor 5 is powered by batteries or The purpose of the present invention can be achieved by connecting an external power plug or a combination of the two.
本实施例中，所述挤压块3至少为两个并且沿水平方向均匀排列，凸轮轴4上对应每个挤压块3设置一个凸轮，相邻两个凸轮的凸出方向互成180°夹角，使三升袋内的营养液在多个挤压块3的交替挤压下保持较好的流动性和均匀性。In this embodiment, there are at least two extruding blocks 3 and they are evenly arranged along the horizontal direction. A cam is provided on the camshaft 4 corresponding to each extruding block 3, and the protruding directions of two adjacent cams are 180° to each other. The included angle enables the nutrient solution in the three-liter bag to maintain better fluidity and uniformity under the alternate extrusion of a plurality of extrusion blocks 3 .
本实施例中，所述驱动电机5的输出轴与凸轮轴4垂直，驱动电机5的输出轴上固定有蜗杆7；凸轮轴4通过花键与蜗杆7连接形成涡轮蜗杆机构，不仅能缩减整体结构沿凸轮轴4轴向的尺寸，提高结构的紧凑性，同时利用蜗轮蜗杆机构能产生较大的传动比并达到较佳的减速效果，降低驱动阻力，利于节能，同时利于控制挤压块3的挤压频率，提高实用性。In this embodiment, the output shaft of the drive motor 5 is perpendicular to the camshaft 4, and the worm 7 is fixed on the output shaft of the drive motor 5; The size of the structure along the axial direction of the camshaft 4 improves the compactness of the structure, and at the same time, the use of the worm gear mechanism can produce a larger transmission ratio and achieve a better deceleration effect, reduce the driving resistance, benefit energy saving, and at the same time facilitate the control of the extrusion block 3 Extrusion frequency, improve practicality.
本实施例中，所述挤压块3与前侧板2之间设有复位弹簧8；所述复位弹簧8套于挤压块3外部并弹性支撑于挤压块3和前侧板2之间，前侧板2上设有供挤压块3插入并滑动配合的插孔，前侧板2对应插孔的前端设有向前伸出的导向套13，用于对挤压块3进行滑动导向，导向套13的上下两侧均设有用于对凸轮进行让位的让位槽，挤压块3为圆柱形结构，挤压块3的外圆面及插孔的内壁均为阶梯状结构，复位弹簧8套于挤压块3的外圆并弹性支撑于挤压块3和插孔的台肩处，使挤压块3在凸轮轴4的推动作用下伸进前侧板2与后侧板1之间空隙内之后能够在复位弹簧8的弹力作用下自动复位，提高挤压块3运动的稳定性，当然也可利用三升袋自身的膨胀性能将挤压块3弹回。In this embodiment, a return spring 8 is provided between the extrusion block 3 and the front side plate 2; the return spring 8 is set outside the extrusion block 3 and elastically supported between the extrusion block 3 and the front side plate 2 Between them, the front side plate 2 is provided with a jack for the extrusion block 3 to be inserted and slidably fitted, and the front end of the front side plate 2 corresponding to the jack is provided with a guide sleeve 13 protruding forward for the extrusion block 3 Sliding guide, the upper and lower sides of the guide sleeve 13 are provided with relief grooves for the cam to give way, the extrusion block 3 is a cylindrical structure, the outer circular surface of the extrusion block 3 and the inner wall of the jack are stepped structure, the return spring 8 is set on the outer circle of the extrusion block 3 and elastically supported on the shoulder of the extrusion block 3 and the socket, so that the extrusion block 3 extends into the front side plate 2 and the front side plate 2 under the push of the camshaft 4 In the gap between the rear side plates 1, it can automatically reset under the elastic force of the back-moving spring 8 to improve the stability of the extrusion block 3. Of course, the expansion performance of the three-liter bag itself can also be used to bounce the extrusion block 3 back.
本实施例中，所述前侧板2通过连接板9竖直滑动连接于后侧板1；后侧板1上设有用于与连接板9滑动连接的滑轨10；连接板9上对应滑轨10设有滑槽；连接板9上对应其滑槽底部还设有可单自由度转动的螺杆11；所述滑轨10的顶面设有与螺杆11的外螺纹相卡合的卡齿，滑轨10和滑槽为相匹配的燕尾式结构，使连接板9与后侧板1之间形成单自由度滑动配合结构，滑轨10顶面是指滑轨10相对于后侧板1凸出方向的一侧表面，利用螺杆11和滑轨10顶面的卡齿的配合能实现自锁定位，同时转动螺杆11能够控制连接板9沿滑轨10滑动，进而调整连接板9和前侧板2的高度，以根据需要调整三升袋的挤压位置；前侧板2与连接板9之间通过沿竖直方向设置的弹性铰链连接，使前侧板2在弹性铰链的弹力作用下处于与后侧板1平行的位置，手动扭转前侧板2能使前侧板2与后侧板1之间的空隙变大，因此更方便放置和取出三升袋，放好后前侧板2在弹性铰链的弹力作用下回位，利用挤压块3对三升袋进行有效的挤压。In this embodiment, the front side plate 2 is vertically slidably connected to the rear side plate 1 through the connecting plate 9; the rear side plate 1 is provided with a slide rail 10 for slidingly connecting with the connecting plate 9; The rail 10 is provided with a chute; the connecting plate 9 is also provided with a screw 11 that can rotate with a single degree of freedom corresponding to the bottom of the chute; , the slide rail 10 and the chute are a matching dovetail structure, so that a single-degree-of-freedom sliding fit structure is formed between the connecting plate 9 and the rear side plate 1. The top surface of the slide rail 10 refers to the On the side surface in the protruding direction, the self-locking position can be realized by the cooperation of the screw rod 11 and the locking teeth on the top surface of the slide rail 10. At the same time, turning the screw rod 11 can control the sliding of the connecting plate 9 along the sliding rail 10, and then adjust the connecting plate 9 and the front. The height of the side plate 2 is to adjust the extruding position of the three-liter bag as required; the front side plate 2 is connected with the connecting plate 9 by an elastic hinge arranged in the vertical direction, so that the front side plate 2 is under the elastic force of the elastic hinge In a position parallel to the rear side panel 1, manually twisting the front side panel 2 can make the gap between the front side panel 2 and the rear side panel 1 larger, so it is more convenient to place and take out the three-liter bag, put the rear front side panel 2 Return to the position under the action of the elastic force of the elastic hinge, and utilize the extruding block 3 to effectively extrude the three-liter bag.
本实施例中，所述后侧板1的前侧面设有用于悬挂三升袋的挂钩12，可直接将三升袋悬挂在挂钩12上，便于操作。In this embodiment, the front side of the rear side plate 1 is provided with a hook 12 for hanging the three-liter bag, and the three-liter bag can be directly hung on the hook 12, which is convenient for operation.
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610294929.9ACN105943381B (en) | 2016-05-06 | 2016-05-06 | Three liter bag squeezer |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610294929.9ACN105943381B (en) | 2016-05-06 | 2016-05-06 | Three liter bag squeezer |
| Publication Number | Publication Date |
|---|---|
| CN105943381A CN105943381A (en) | 2016-09-21 |
| CN105943381Btrue CN105943381B (en) | 2018-07-20 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610294929.9AExpired - Fee RelatedCN105943381B (en) | 2016-05-06 | 2016-05-06 | Three liter bag squeezer |
| Country | Link |
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| CN (1) | CN105943381B (en) |
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| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20180720 Termination date:20200506 |