Peristaltic pump pipe connector

Abstract

The utility model discloses a peristaltic pump pipe connector, which belongs to the technical field of peristaltic pumps, and comprises a pump body, a protective frame and a connecting mechanism, the output end of the front side of the pump body is sleeved with a peristaltic pump pipe, the output end of the pump body abuts against the outer wall of the peristaltic pump pipe, the front side of the pump body is fixedly connected with the protective frame, and the protective frame is fixedly connected with the connecting mechanism. The two ends of the peristaltic pump pipe penetrate through and are connected with connecting mechanisms in a clamping mode, each connecting mechanism comprises a first connecting piece, a second connecting piece and an elastic clamping piece, and the connecting mechanisms are arranged and matched with fastening nuts, gaskets and extrusion pads, so that the two ends of the peristaltic pump pipe can be conveniently and stably connected with a feeding pipe and a liquid conveying pipe; the complex operation that tools such as iron wires are used for winding is avoided, the liquid can stably flow when the pump body works, and the situation that the liquid overflows or is disconnected due to infirm connection is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of peristaltic pumps, in particular to a peristaltic pump pipe connecting joint. Background Art

[0002] In the medical field, especially in plastic surgery and dermatology, tumescent fluid anesthesia technology is widely used due to its unique advantages. Tumescent fluid anesthesia technology involves the rapid injection of special tumescent fluid into the subcutaneous tissue at a high flow rate (300-500ml / min) to expand the tissue gap, facilitate surgical operations and reduce bleeding. However, this technology has extremely high performance requirements for infusion equipment, and ordinary infusion pumps or manual injection cannot meet its fast, stable and continuous liquid delivery needs. Peristaltic pumps are ideal for tumescent fluid injection due to their unique working principle - the rotating roller pushes the liquid in the pump tube forward.

[0003] For example, Chinese patent CN202320639474.5 discloses a peristaltic pump. Since the water outlet pipe joint is movably installed on the peristaltic pump body and a preset gap is formed between the pump pipe and the peristaltic pump body, the tensile force generated when the pump pipe is squeezed can simultaneously drive the water outlet pipe joint to move on the peristaltic pump body, thereby preventing the pump pipe from being excessively compressed and deformed, and when the pump pipe is elastically deformed under pressure, it will not contact and rub against the peristaltic pump body in the height direction of the peristaltic pump. In this way, when the peristaltic pump works under back pressure at the water outlet end, it can prevent the pump pipe from rupturing and reduce the wear of the pump pipe, thereby extending the service life of the pump pipe and ensuring the normal operation of the peristaltic pump.

[0004] Since the peristaltic pump will generate a large pressure on the pipeline when working, this pressure will not only cause the pipeline connection to be easily disconnected, but also even if the connection is not disconnected, liquid overflow is likely to occur. The commonly used method is to use tools such as iron wire to wind the connection between the peristaltic pump tube and the infusion tube. However, this method is cumbersome to operate. Secondly, since the uniformity of manual winding is difficult to ensure, liquid overflow may still occur even if the iron wire is wound. Finally, the use of tools such as iron wire may also cause damage to the pipeline, further aggravating the severity of the problem.

[0005] Based on this, the utility model designs a peristaltic pump tube connecting joint to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a peristaltic pump tube connecting joint.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A peristaltic pump tube connection joint, comprising a pump body, a protective frame and a connection mechanism, wherein a peristaltic pump tube is sleeved on the output end on the front side of the pump body, and the output end of the pump body abuts against the outer wall of the peristaltic pump tube, the front side of the pump body is fixedly connected with a protective frame, and both ends of the peristaltic pump tube are penetrated and clamped and connected with the connection mechanism;

[0009] The connecting mechanism includes a first connecting member, a second connecting member and an elastic clamping member. The second connecting member is arranged on the right side of the first connecting member. An elastic clamping member is embedded between the first connecting member and the second connecting member. The first connecting member, the second connecting member and the elastic clamping member are coaxially arranged and a peristaltic pump tube is connected at the center of the axis.

[0010] Furthermore, an extrusion groove 1 is provided at the center of the shaft on the right side of the first connecting member, the inner wall of the extrusion groove 1 abuts against the left side wall of the elastic clamping member, a connecting plate 1 is fixedly connected to the outer edge of the right side of the first connecting member, and a plurality of connecting screws are fixedly connected to the connecting plate 1 at equal intervals on the circumference;

[0011] Furthermore, an extrusion groove 2 is provided at the center of the shaft on the left side of the second connecting member, a connecting plate 2 is fixedly connected to the outer edge of the left side of the second connecting member, a plurality of connecting holes are provided at equal intervals on the circumference of the connecting plate 2, and a connecting flange is fixedly connected to the right side of the second connecting member;

[0012] Furthermore, the plurality of connection holes correspond to the plurality of connection screws one by one, and the right end of the connection screw passes through the connection hole and penetrates the second connection plate and is threadedly connected with a fastening nut;

[0013] Furthermore, a gasket is embedded between the fastening nut and the second connecting plate, and the gasket is sleeved on the connecting screw;

[0014] Furthermore, the cross section of the elastic clamping piece is a triangular structure, and the elastic clamping piece is made of elastic rubber material;

[0015] Furthermore, a clamping hole is opened at the axis center of the elastic clamping member, a peristaltic pump tube is arranged in the clamping hole, and the inner wall of the clamping hole abuts against the outer wall of the peristaltic pump tube;

[0016] Furthermore, the elastic clamping member is provided with a plurality of triangular extrusion cavities inside, the outer wall of the elastic clamping member is provided with a plurality of grooves at equal intervals around the circumference, and the plurality of triangular extrusion cavities are symmetrically arranged on the left and right sides of the groove;

[0017] Furthermore, the elastic clamping member is adapted to the extrusion groove 1, and the outer wall on the left side of the elastic clamping member abuts against the inner wall of the extrusion groove 1;

[0018] Furthermore, a compression pad is embedded between the elastic clamping member and the second compression groove, and the left and right sides of the compression pad are respectively in contact with the elastic clamping member and the second compression groove.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model provides a connecting mechanism, cooperates with a fastening nut, a gasket and an extrusion pad, so that the two ends of the peristaltic pump tube can be conveniently and stably connected to the feed tube and the infusion tube, avoiding the tedious operation of winding with tools such as iron wire, while ensuring the stability and sealing of the connection, effectively preventing liquid overflow, and will not cause damage to the pipeline, thereby extending the service life of the peristaltic pump and the peristaltic pump tube.

[0021] The utility model provides an elastic clamping piece and utilizes the elasticity of the elastic clamping piece to achieve effective clamping of the peristaltic pump tube without causing damage to the peristaltic pump tube. At the same time, the cooperation between the elastic clamping piece and the extrusion groove one and the extrusion groove two can achieve the fixation and positioning of the elastic clamping piece, further ensuring the stability of the connection. At the same time, the elastic clamping piece is made of elastic rubber material, has good elasticity and corrosion resistance, can adapt to peristaltic pump tubes of different specifications and materials, and improves the versatility and practicality of the device. The design of the triangular extrusion cavity and the groove makes the elastic clamping piece shrink inward when subjected to force, and evenly disperses the extrusion force to clamp the peristaltic pump tube, making the connection more firm and reliable.

[0022] The utility model can fill the tiny gap between the elastic clamping piece and the first and second extrusion grooves by arranging the extrusion pad, thereby improving the tightness of the connection and having a buffering effect on the elastic clamping piece, thereby reducing the impact and vibration to which the peristaltic pump tube is subjected during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a stereoscopic diagram of a peristaltic pump tube connection joint of the utility model;

[0025] Figure 2 It is a cross-sectional view of a connection mechanism in a peristaltic pump tube connection joint of the utility model;

[0026] Figure 3 This is a structural schematic diagram of a first connecting piece in a peristaltic pump tube connecting joint of the utility model;

[0027] Figure 4 This is a structural schematic diagram of a second connecting piece in a peristaltic pump tube connecting joint of the utility model;

[0028] Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0029] The numbers in the figure represent:

[0030] 1. Pump body; 11. Peristaltic pump tube; 2. Protection frame; 3. Connecting mechanism; 31. First connecting piece; 311. Extrusion groove one; 312. Connecting plate one; 313. Connecting screw; 32. Second connecting piece; 321. Extrusion groove two; 322. Connecting plate two; 323. Connecting hole; 324. Connecting flange; 33. Elastic clamping piece; 331. Clamping hole; 332. Triangular extrusion cavity; 333. Groove; 4. Fastening nut; 5. Gasket; 6. Extrusion pad. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0033] Embodiment 1

[0034] In some embodiments, please refer to the attached instructions. Figure 1-5 A peristaltic pump tube connection joint comprises a pump body 1, a protective frame 2 and a connection mechanism 3. A peristaltic pump tube 11 is sleeved on the output end of the front side of the pump body 1, and the output end of the pump body 1 abuts against the outer wall of the peristaltic pump tube 11. The front side of the pump body 1 is fixedly connected with the protective frame 2. Both ends of the peristaltic pump tube 11 are penetrated and clamped with the connection mechanism 3. The pump body 1 is a peristaltic pump. The peristaltic pump is an existing and mature technology. It is common knowledge for technicians in the field and no redundant elaboration is made here.

[0035] The connecting mechanism 3 includes a first connecting member 31, a second connecting member 32 and an elastic clamping member 33. The second connecting member 32 is arranged on the right side of the first connecting member 31, and the elastic clamping member 33 is embedded between the first connecting member 31 and the second connecting member 32. The first connecting member 31, the second connecting member 32 and the elastic clamping member 33 are coaxially arranged and the peristaltic pump tube 11 is connected at the center of the axis.

[0036] The two ends of the peristaltic pump tube 11 are connected to the feed tube and the infusion tube respectively through the provided connection mechanism 3, the first connection piece 31, the second connection piece 32, the elastic clamping piece 33 and the extrusion pad 6 are sleeved on the peristaltic pump tube 11, and then the gasket 5 and the fastening nut 4 are sleeved on the right end of the connecting screw 313, and the fastening nut 4 is rotated to move the fastening nut 4 to the left along the connecting screw 313 until it abuts against the connecting plate 2 322, and the friction force is increased by the gasket 5, so that the first connection piece 31 and the second connection piece 32 clamp the elastic clamping piece 33 and fix it on the peristaltic pump tube 11 At this time, the left outer wall of the elastic clamping piece 33 abuts against the inner wall of the extrusion groove 1 311 of the first connecting piece 31, and the right outer wall of the elastic clamping piece 33 abuts against the inner wall of the extrusion groove 2 321 of the second connecting piece 32 and the extrusion pad 6. By screwing the fastening nut 4, the gap between the first connecting piece 31 and the second connecting piece 32 is adjusted, and the elastic clamping piece 33 is driven to move toward the peristaltic pump tube 11 by extrusion, so that the inner wall of the clamping hole 331 abuts against the outer wall of the peristaltic pump tube 11, thereby clamping the peristaltic pump tube 11 between the first connecting piece 31 and the second connecting piece 32 to prevent the peristaltic pump tube 11 from shaking.

[0037] Furthermore, an extrusion groove 311 is opened at the center of the axis on the right side of the first connecting member 31, and the inner wall of the extrusion groove 311 abuts against the left side wall of the elastic clamping member 33. A connecting plate 312 is fixedly connected to the outer edge of the right side of the first connecting member 31, and a plurality of connecting screws 313 are fixedly connected to the connecting plate 312 at equal intervals on the circumference. A fastening nut 4 is passed through and threadedly connected to the right end of the connecting screw 313. The fastening nut 4 and the connecting screw 313 are arranged to facilitate the fixed connection between the first connecting member 31 and the second connecting member 32, and the fastening nut 4 is prevented from loosening by the gasket 5.

[0038] Furthermore, an extrusion groove 321 is provided at the center of the axis on the left side of the second connecting member 32, a connecting plate 322 is fixedly connected to the outer edge of the left side of the second connecting member 32, a plurality of connecting holes 323 are provided on the connecting plate 322 at equal intervals on the circumference, and a connecting flange 324 is fixedly connected to the right side of the second connecting member 32. The connecting flange 324 is connected to the mounting member provided at the end of the feed pipe or the infusion pipe by means of the connecting flange 324, and in order to increase the stability and sealing of the connection, a sealing gasket or a sealing rubber ring can be added at the connection between the connecting flange 324 and the feed pipe or the infusion pipe. These seals can effectively prevent liquid leakage at the connection, thereby ensuring the reliability and safety of the connecting mechanism 3.

[0039] Furthermore, a plurality of connection holes 323 correspond to a plurality of connection screws 313 one by one, and the right end of the connection screw 313 passes through the connection hole 323 and penetrates the second connection plate 322 and is threadedly connected with a fastening nut 4 .

[0040] Furthermore, a gasket 5 is embedded between the fastening nut 4 and the second connecting plate 322 , and the gasket 5 is sleeved on the connecting screw 313 .

[0041] Furthermore, the cross-section of the elastic clamping piece 33 is a triangular structure. The triangular structure is set to increase the elasticity of the elastic clamping piece 33, so that the elastic clamping piece 33 contracts inwardly when subjected to force, so that the inner wall of the clamping hole 331 fits tightly with the outer wall of the peristaltic pump tube 11, thereby clamping and fixing the peristaltic pump tube 11 to prevent it from shaking, and the triangular structure is evenly stressed and not easily damaged. The elastic clamping piece 33 is made of elastic rubber material, which is soft and has excellent elasticity, so that when the elastic clamping piece 33 contracts inwardly under force, it will not cause damage to the peristaltic pump tube 11, while increasing the practicality of the peristaltic pump tube connection joint.

[0042] Furthermore, a clamping hole 331 is opened at the axial center of the elastic clamping piece 33, and the peristaltic pump tube 11 is arranged in the clamping hole 331. The inner wall of the clamping hole 331 abuts against the outer wall of the peristaltic pump tube 11. The set clamping hole 331 facilitates the peristaltic pump tube 11 to pass through and clamp it on the elastic clamping piece 33 to prevent it from shaking.

[0043] Furthermore, a plurality of triangular extrusion cavities 332 are provided inside the elastic clamping member 33. The provision of the triangular extrusion cavities 332 enables the elastic clamping member 33 to disperse the extrusion force more evenly when being extruded, thereby improving the stability and effect of clamping. A plurality of grooves 333 are provided at equal intervals on the circumference of the outer wall of the elastic clamping member 33. The plurality of triangular extrusion cavities 332 are symmetrically arranged on the left and right sides of the groove 333. The elasticity of the elastic clamping member 33 is increased by the provision of the triangular extrusion cavities 332 and the grooves 333, so that the elastic clamping member 33 contracts inwardly when subjected to force, and the weight of the elastic clamping member 33 is reduced by the provision of the triangular extrusion cavities 332, thereby facilitating the installation and disassembly of the elastic clamping member 33.

[0044] Furthermore, the elastic clamping member 33 is adapted to the extrusion groove 311, and the outer wall on the left side of the elastic clamping member 33 abuts against the inner wall of the extrusion groove 311. The first connecting member 31, the second connecting member 32 and the elastic clamping member 33 are flexibly adjusted according to the diameter of the pipeline to avoid the pump body 1 from exerting a large pressure on the pipeline when working, resulting in the peristaltic pump tube 11 being disconnected or overflowing from the connection with the infusion tube and the liquid supply tube.

[0045] Furthermore, an extrusion pad 6 is embedded between the elastic clamping piece 33 and the extrusion groove 321. The material of the extrusion pad 6 can be selected to have a certain elasticity and wear resistance, such as rubber or silicone. The left and right sides of the extrusion pad 6 are respectively abutted against the elastic clamping piece 33 and the extrusion groove 321. Through the setting of the extrusion pad 6, the small gap between the elastic clamping piece 33 and the extrusion groove 1 311 and the extrusion groove 2 321 can be filled, thereby improving the tightness of the connection. At the same time, the elasticity of the extrusion pad 6 can also play a certain buffering role on the elastic clamping piece 33, reduce the impact and vibration of the peristaltic pump tube 11 during operation, and extend its service life.

[0046] The working principle of the utility model is as follows: when using the peristaltic pump tube connection joint, firstly, the first connecting piece 31, the second connecting piece 32, the elastic clamping piece 33 and the extrusion pad 6 are sleeved on the peristaltic pump tube 11 to ensure that the peristaltic pump tube 11 passes through and is located in the clamping hole 331 of the elastic clamping piece 33, and then, the gasket 5 and the fastening nut 4 are sleeved on the right end of the connecting screw 313, and the fastening nut 4 is rotated to make it move to the left along the connecting screw 313. As the fastening nut 4 moves, it will abut against the connecting plate 2 322, and increase the friction force through the gasket 5, thereby firmly clamping the first connecting piece 31 and the second connecting piece 32, and fixing the elastic clamping piece 33 on the peristaltic pump tube 11. Under the adjustment of the fastening nut 4, the gap between the first connecting piece 31 and the second connecting piece 32 is gradually reduced. The elastic clamping piece 33 will be driven to move toward the peristaltic pump tube 11 through the extrusion effect. Since the elastic clamping piece 33 has excellent elasticity, its left outer wall is tightly fitted with the inner wall of the extrusion groove 1 311 of the first connecting piece 31, while the right outer wall is tightly fitted with the inner wall of the extrusion groove 2 321 of the second connecting piece 32 and the extrusion pad 6. This fit ensures that the peristaltic pump tube 11 is evenly clamped between the first connecting piece 31 and the second connecting piece 32, thereby effectively preventing the peristaltic pump tube 11 from shaking during operation. In addition, the provision of the extrusion pad 6 not only fills the tiny gap between the elastic clamping piece 33 and the extrusion groove 1 311 and the extrusion groove 2 321, thereby improving the tightness of the connection, but also can play a buffering role on the elastic clamping piece 33, thereby reducing the impact and vibration of the peristaltic pump tube 11 during operation.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A peristaltic pump tube connection joint, comprising a pump body (1), a protection frame (2) and a connection mechanism (3), characterized in that: A peristaltic pump tube (11) is sleeved on the output end of the front side of the pump body (1), and the output end of the pump body (1) abuts against the outer wall of the peristaltic pump tube (11); a protective frame (2) is fixedly connected to the front side of the pump body (1), and both ends of the peristaltic pump tube (11) are penetrated and clamped with a connecting mechanism (3); The connecting mechanism (3) comprises a first connecting member (31), a second connecting member (32) and an elastic clamping member (33); the second connecting member (32) is arranged on the right side of the first connecting member (31); the elastic clamping member (33) is embedded between the first connecting member (31) and the second connecting member (32); the first connecting member (31), the second connecting member (32) and the elastic clamping member (33) are coaxially arranged and a peristaltic pump tube (11) is connected at the center of the axis.

2. The peristaltic pump tube connector according to claim 1, characterized in that: An extrusion groove (311) is provided at the center of the axis on the right side of the first connecting member (31), the inner wall of the extrusion groove (311) abuts against the left side wall of the elastic clamping member (33), a connecting plate (312) is fixedly connected to the outer edge of the right side of the first connecting member (31), and a plurality of connecting screws (313) are fixedly connected to the connecting plate (312) at equal intervals on the circumference.

3. The peristaltic pump tube connector according to claim 2, characterized in that: A second extrusion groove (321) is provided at the center of the axis on the left side of the second connecting member (32); a second connecting plate (322) is fixedly connected to the outer edge of the left side of the second connecting member (32); a plurality of connecting holes (323) are provided on the circumference of the second connecting plate (322) at equal intervals; and a connecting flange (324) is fixedly connected to the right side of the second connecting member (32).

4. The peristaltic pump tube connector according to claim 3, characterized in that: The plurality of connection holes (323) correspond one to one with the plurality of connection screw rods (313); the right end of the connection screw rod (313) passes through the second connection plate (322) through the connection hole (323) and is threadedly connected with a fastening nut (4).

5. The peristaltic pump tube connector according to claim 4, characterized in that: A gasket (5) is embedded between the fastening nut (4) and the second connecting plate (322), and the gasket (5) is sleeved on the connecting screw (313).

6. The peristaltic pump tube connector according to claim 5, characterized in that: The cross section of the elastic clamping piece (33) is a triangular structure, and the elastic clamping piece (33) is made of elastic rubber material.

7. The peristaltic pump tube connector according to claim 6, characterized in that: A clamping hole (331) is provided at the axis center of the elastic clamping piece (33), a peristaltic pump tube (11) is arranged in the clamping hole (331), and the inner wall of the clamping hole (331) abuts against the outer wall of the peristaltic pump tube (11).

8. The peristaltic pump tube connector according to claim 7, characterized in that: A plurality of triangular extrusion cavities (332) are provided inside the elastic clamping piece (33), a plurality of grooves (333) are provided at equal intervals on the circumference of the outer wall of the elastic clamping piece (33), and the plurality of triangular extrusion cavities (332) are symmetrically arranged on the left and right sides of the groove (333).

9. The peristaltic pump tube connector according to claim 8, characterized in that: The elastic clamping piece (33) is matched with the first extrusion groove (311), and the outer wall on the left side of the elastic clamping piece (33) abuts against the inner wall of the first extrusion groove (311).

10. The peristaltic pump tube connection joint according to claim 9, characterized in that: An extrusion pad (6) is embedded between the elastic clamping piece (33) and the second extrusion groove (321), and the left and right sides of the extrusion pad (6) are respectively in contact with the elastic clamping piece (33) and the second extrusion groove (321).

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