A durable peristaltic pump tubing and peristaltic pump

Abstract

The utility model relates to a durable peristaltic pump pipe and peristaltic pump, and relates to the technical field of peristaltic pump. The utility model discloses a durable peristaltic pump pipe, which comprises a rigid pipe frame and a flexible half ring. One side of the rigid pipe frame is provided with a water inlet pipe and a water outlet pipe which are communicated with the inside of the rigid pipe frame. The flexible half ring is sealed and detachably connected in the rigid pipe frame. The inside of the rigid pipe frame and the flexible half ring forms a pipe cavity after being assembled. The flexible half ring is provided with a blocking block for separating the water inlet pipe and the water outlet pipe. A rigid protection ring is detachably connected to the inside of the flexible half ring. The protection ring can be extruded by an extrusion assembly. The above technical scheme can greatly prolong the service life of the flexible half ring, so that the peristaltic pump pipe has the characteristic of durability.

Description

Technical Field

[0001] This utility model relates to the field of peristaltic pump technology, specifically to a durable peristaltic pump tube and a peristaltic pump. Background Technology

[0002] A peristaltic pump is a metering and filling pump. Its working principle involves a pressure roller rotating 360° within the pump casing. As the pressure roller squeezes the pump tube forward, a vacuum is created at the rear of the tube, drawing material into the tube. The following pressure roller then propels the material, thus forming a peristaltic pump with a transport function. The metering of the peristaltic pump is controlled by the speed of the drive motor and the pipe diameter, achieving precise product filling. Because peristaltic pumps are valveless, small in size, and offer precise, albeit low-flow-rate, fillings, they are widely used for conveying liquids, gas-liquid mixtures, and various viscous fluids.

[0003] The pump tube in existing peristaltic pumps is a circular flexible tube. When the extrusion wheel applies force, all the force is concentrated on one point of the pump tube, which may cause the pump tube in that area to stick together. In addition, the large friction between the extrusion wheel and the pump tube will shorten the service life of the pump tube. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings and deficiencies of the existing technology by providing a durable peristaltic pump tube and peristaltic pump, which can greatly extend the service life of the flexible semi-ring and make the peristaltic pump tube durable.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a durable peristaltic pump tube, comprising a rigid tube frame and a flexible semi-ring. The rigid tube frame has an inlet pipe and an outlet pipe communicating with its interior on one side. The flexible semi-ring is detachably and sealed within the rigid tube frame. After the rigid tube frame and the flexible semi-ring are assembled, a cavity is formed inside. The flexible semi-ring has a sealing block for separating the inlet pipe and the outlet pipe, and a rigid protective ring is detachably connected to the inner side of the flexible semi-ring. The protective ring can be squeezed by the extrusion assembly.

[0006] Preferably, the flexible semi-ring has an annular groove on its inner side, and the outer wall of the protective ring has a retaining ring integrally formed therewith, the retaining ring being engaged in the groove.

[0007] Preferably, the protective ring is made of wear-resistant material.

[0008] Preferably, the rigid pipe frame has an installation groove located between the inlet pipe and the outlet pipe, and the sealing block is embedded in the installation groove.

[0009] Preferably, the inner wall of the rigid tube frame is provided with an arc-shaped protrusion, and the flexible semi-ring has a limiting groove that matches the protrusion.

[0010] This utility model also provides a peristaltic pump, including a drive assembly, a squeezing assembly, and the aforementioned durable peristaltic pump tube. The squeezing assembly is installed at the output end of the drive assembly and is located inside the protective ring. When the drive assembly drives the squeezing assembly to rotate and squeeze the protective ring and the flexible semi-ring, the squeezing assembly periodically squeezes from one end of the tube to the other end to make the inlet pipe draw water and the outlet pipe discharge water.

[0011] Preferably, a mounting base is detachably connected between the drive assembly and the peristaltic pump tube, and the extrusion assembly is located between the mounting base and the inside of the peristaltic pump tube.

[0012] Preferably, the peristaltic pump tube is covered with a sealing cap, and the flexible semi-ring is sealed and fitted with the mounting base and the sealing cap.

[0013] Preferably, the extrusion assembly includes a mounting rod, an extrusion wheel, and a rotating disk. The rotating disk is located inside the mounting base and is detachably connected to the output end of the drive assembly. The rotating disk has an installation hole near its edge. The mounting rod is installed in the installation hole. The extrusion wheel is sleeved and fixed on the mounting rod. When the rotating disk rotates, it drives the extrusion wheel to rotate and extrudes the protective ring and the flexible semi-ring. The extrusion wheel periodically extrudes from one end of the pipe cavity to the other end to make the inlet pipe pump water and the outlet pipe discharge water.

[0014] Preferably, the inner wall of the sealing cover has an annular groove, and the mounting rod is rotatably connected to the annular groove.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0016] 1. The extrusion assembly is in direct contact with the protective ring. After the extrusion assembly rotates and extrudes the protective ring, the protective ring then extrudes the flexible semi-ring, resulting in indirect extrusion of the flexible semi-ring by the extrusion assembly. During this process, the protective ring and the flexible semi-ring are firmly connected, with no relative displacement or rotation. There is no friction between the flexible semi-ring and the extrusion assembly, which greatly extends the service life of the flexible semi-ring. Because the flexible semi-ring is extruded against the rigid tube support, different materials are less likely to stick together. At the same time, the rigid protective ring pulls the flexible semi-ring in the opposite direction during extrusion, making it even less prone to sticking. This solution solves the industry pain points of peristaltic pump tube adhesion and short service life due to wear, greatly improving the reliability and lifespan of peristaltic pumps.

[0017] 2. Because the rigid tube frame and the flexible semi-ring in the peristaltic pump tube of this application are made of different materials, the flexible semi-ring is not easy to stick to the rigid tube frame during the extrusion process. This design further extends the service life of the peristaltic pump tube.

[0018] 3. The protective ring and flexible semi-ring are easy to install and disassemble, and both have simple structural designs, are easy to manufacture, and have low cost. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2 This is an exploded view of the entire utility model;

[0022] Figure 3 This is a schematic diagram of the overall three-dimensional rear sectional structure of this utility model;

[0023] Figure 4 This is a top view of the peristaltic pump tube of this utility model;

[0024] Figure 5 This is an exploded view of the peristaltic pump tube of this utility model.

[0025] Explanation of reference numerals in the attached drawings: Drive assembly 1, Mounting base 2, Extrusion assembly 3, Mounting hole 31, Mounting rod 32, Extrusion wheel 33, Rotary disk 34, Protective ring 4, Snap ring 41, Sealing cap 5, Annular groove 51, Peristaltic pump pipe 6, Inlet pipe 61, Outlet pipe 62, Rigid pipe support 63, Mounting groove 631, Protrusion 632, Flexible semi-ring 64, Snap groove 641, Sealing block 642, Limiting groove 643. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0028] This embodiment relates to a durable peristaltic pump tube 6, such as Figure 4-5As shown, it includes a rigid pipe frame 63 and a flexible semi-ring 64. The rigid pipe frame 63 can be a rigid plastic pipe, a metal pipe, etc. To reduce the cost of use, the outer pipe frame 31 is preferably a plastic pipe. The flexible semi-ring 64 is made of a flexible material such as soft rubber or soft silicone. One side of the rigid pipe frame 63 has an inlet pipe 61 and an outlet pipe 62 that communicate with its interior. The flexible semi-ring 64 is sealed and detachably connected to the rigid pipe frame 63. After the rigid pipe frame 63 and the flexible semi-ring 64 are assembled, they form a cavity inside. The flexible semi-ring 64 has a sealing block 642 for separating the inlet pipe 61 and the outlet pipe 62. Specifically, the flexible semi-ring 64 and the sealing block 642 are integrally formed, and the flexible semi-ring 64 is formed by... A rigid protective ring 4 is detachably connected to the inner side of ring 64. The extrusion assembly 3 is in direct contact with the protective ring 4. After the extrusion assembly 3 rotates and extrudes the protective ring 4, the protective ring 4 then extrudes the flexible semi-ring 64, so that the extrusion assembly 3 indirectly extrudes the flexible semi-ring 64. During this process, the protective ring 4 and the flexible semi-ring 64 are firmly connected, and there is no relative displacement or rotation between them. There is no friction between the flexible semi-ring 64 and the extrusion assembly 3, which can greatly extend the service life of the flexible semi-ring. Because the flexible semi-ring is extruded with the rigid tube frame 63, different materials are less likely to stick together. At the same time, when the rigid protective ring 4 extrudes, it pulls the flexible semi-ring 64 in the opposite direction, making the flexible semi-ring 64 even less likely to stick together. Since the protective ring 4 is a rigid ring, it provides a larger support area (close to surface contact), which greatly reduces the peak value of the extrusion force and can extend the service life of the flexible semi-ring 64, making the peristaltic pump tube 6 durable.

[0029] When the peristaltic pump is working, the squeezing component 3 periodically and continuously squeezes the protective ring 4 and the flexible semi-ring 64, generating negative pressure in both the inlet pipe 61 and the inside of the pipe cavity. Water is forced into the inlet pipe 61 from the outside and then into the pipe cavity. Under the squeezing of the squeezing component 3, the water in the pipe cavity is gradually squeezed to the outlet pipe 62 and discharged. Because the rigid pipe frame 63 and the flexible semi-ring 64 in the peristaltic pump tube 6 of this application are made of different materials, the flexible semi-ring 64 will not move with the rigid pipe frame 63 during the squeezing process. Furthermore, due to the water pressure, even after long-term operation, the flexible semi-ring 36 and the outer pipe frame 31 will not stick together. This design further extends the service life of the peristaltic pump tube 3.

[0030] In addition, since the flexible semi-ring 64 is installed together with the rigid tube frame 63 in a detachable manner, when the flexible semi-ring 64 is damaged after long-term use, the user can first remove the extrusion assembly 3 and then remove the flexible semi-ring 64 from the inside of the rigid tube frame 63, without having to replace the entire peristaltic pump tube 3, which can reduce the cost of use.

[0031] Specifically, such as Figure 5As shown, the flexible semi-ring 64 has an annular groove 641 on its inner side, and the outer wall of the protective ring 4 has a retaining ring 41 integrally formed therewith. The retaining ring 41 is inserted into the groove 641. This design facilitates the installation or removal of the flexible semi-ring 64 and the protective ring 4.

[0032] Preferably, the protective ring 4 is made of wear-resistant materials, such as aluminum alloy, glass fiber, carbon fiber, etc., which can greatly extend the service life of the protective ring 4 and the flexible semi-ring 64.

[0033] To enhance the stability of the sealing block 642 and the flexible semi-ring 64 within the rigid pipe frame 63, an installation groove 631 is provided inside the rigid pipe frame 63 between the inlet pipe 61 and the outlet pipe 62, and the sealing block 642 is sealed and embedded within the installation groove 631.

[0034] To further enhance the stability of the flexible semi-ring 64 within the rigid tube frame 63, an arc-shaped protrusion 632 is provided on the inner wall of the rigid tube frame 63, and a limiting groove 643 matching the protrusion 632 is provided on the flexible semi-ring 64.

[0035] This invention also provides a peristaltic pump, such as Figure 1-3 As shown, the system includes a drive assembly 1, a compression assembly 3, and the aforementioned durable peristaltic pump tubing 6. The compression assembly 3 is installed at the output end of the drive assembly 1 and is located within the protective ring 4. The drive assembly 1 is specifically a motor. When the drive assembly 1 drives the compression assembly 3 to rotate and compress the protective ring 4 and the flexible semi-ring 64, the compression assembly 3 periodically compresses from one end of the tubing to the other to draw water from the inlet pipe 61 and discharge water from the outlet pipe 62. Because this peristaltic pump includes the peristaltic pump tubing 6, it has the same advantages and effects as the peristaltic pump tubing 6, which will not be elaborated further here.

[0036] Specifically, a mounting base 2 is detachably connected between the drive assembly 1 and the peristaltic pump tube 6, and the extrusion assembly 3 is located between the mounting base 2 and the peristaltic pump tube 6.

[0037] To ensure a sealed interior for the peristaltic pump, a sealing cap 5 is placed over the pump tube 6. The flexible semi-ring 64 is sealed and fitted with the mounting base 2 and the sealing cap 5, which further enhances the stability of the flexible semi-ring 64 within the peristaltic pump.

[0038] like Figure 2-3 As shown, the extrusion assembly 3 includes a mounting rod 32, an extrusion wheel 33, and a rotating disk 34. The rotating disk 34 is located inside the mounting base 2 and is detachably connected to the output end of the drive assembly 1. The rotating disk 34 has an installation hole 31 near its edge. The mounting rod 32 is installed inside the installation hole 31. The extrusion wheel 33 is sleeved and fixed on the mounting rod 32. When the rotating disk 34 rotates, it drives the extrusion wheel 33 to rotate and extrudes the protective ring 4 and the flexible semi-ring 64. The extrusion wheel 33 periodically extrudes from one end of the pipe cavity to the other end to make the inlet pipe 61 pump water and the outlet pipe 62 discharge water.

[0039] To enhance the stability of the mounting rod 32 during rotation, an annular groove 51 is provided on the inner wall of the sealing cover 5, and the mounting rod 32 is rotatably connected to the annular groove 51.

[0040] The working principle of this utility model is roughly as follows: After the drive component 1 is powered on, it will drive the rotating disk 34, the mounting rod 32 and the extrusion wheel 33 to rotate. During operation, the extrusion wheel 33 will continuously and periodically extrude the protective ring 4 and the flexible semi-ring 64, and a negative pressure will be formed in the cavity and the water inlet pipe 61, which will force the water outside the peristaltic pump into the water inlet pipe 61, and then flow into the cavity. Then, the extrusion force generated by the extrusion wheel 33 will gradually squeeze the water in the cavity to the water outlet pipe 62, and discharge it through the water outlet pipe 62.

[0041] The above is only used to illustrate the technical solution of this utility model and not to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A durable peristaltic pump tubing, characterized in that, include: A rigid pipe frame (63) and a flexible semi-ring (64) are provided. The rigid pipe frame (63) has an inlet pipe (61) and an outlet pipe (62) communicating with its interior on one side. The flexible semi-ring (64) is sealed and detachably connected to the rigid pipe frame (63). After the rigid pipe frame (63) and the flexible semi-ring (64) are assembled, a cavity is formed inside. The flexible semi-ring (64) has a sealing block (642) for separating the inlet pipe (61) and the outlet pipe (62). A rigid protective ring (4) is detachably connected to the inner side of the flexible semi-ring (64). The protective ring (4) can be squeezed by the extrusion assembly (3).

2. The durable peristaltic pump tubing according to claim 1, characterized in that: The flexible semi-ring (64) has an annular groove (641) on its inner side, and the outer wall of the protective ring (4) has a retaining ring (41) integrally formed therewith, which is inserted into the annular groove (641).

3. The durable peristaltic pump tubing according to claim 1, characterized in that: The protective ring (4) is made of wear-resistant material.

4. The durable peristaltic pump tubing according to claim 1, characterized in that: The rigid pipe rack (63) has an installation groove (631) located between the inlet pipe (61) and the outlet pipe (62) inside, and the sealing block (642) is sealed and embedded in the installation groove (631).

5. The durable peristaltic pump tubing according to claim 1, characterized in that: The rigid tube frame (63) has an arc-shaped protrusion (632) on its inner wall, and the flexible semi-ring (64) has a limiting groove (643) that matches the protrusion (632).

6. A peristaltic pump, characterized in that, The device includes a drive assembly (1), a squeezing assembly (3), and a durable peristaltic pump tube (6) as described in any one of claims 1-5. The squeezing assembly (3) is installed at the output end of the drive assembly (1) and is located inside a protective ring (4). When the drive assembly (1) drives the squeezing assembly (3) to rotate and squeeze the protective ring (4) and the flexible semi-ring (64), the squeezing assembly (3) periodically squeezes from one end of the tube to the other end to make the inlet pipe (61) pump water and the outlet pipe (62) discharge water.

7. A peristaltic pump according to claim 6, characterized in that: The drive assembly (1) is detachably connected to the peristaltic pump tube (6) by a mounting base (2), and the extrusion assembly (3) is located between the mounting base (2) and the peristaltic pump tube (6).

8. A peristaltic pump according to claim 7, characterized in that: The peristaltic pump tube (6) is covered with a sealing cap (5), and the flexible semi-ring (64) is sealed and fitted with the mounting base (2) and the sealing cap (5).

9. A peristaltic pump according to claim 8, characterized in that: The extrusion assembly (3) includes a mounting rod (32), an extrusion wheel (33), and a rotating disk (34). The rotating disk (34) is located inside the mounting base (2) and is detachably connected to the output end of the drive assembly (1). The rotating disk (34) has an installation hole (31) near its edge. The mounting rod (32) is installed inside the installation hole (31). The extrusion wheel (33) is sleeved and fixed on the mounting rod (32). When the rotating disk (34) rotates, it drives the extrusion wheel (33) to rotate and extrudes the protective ring (4) and the flexible semi-ring (64). The extrusion wheel (33) periodically extrudes from one end of the tube to the other end to make the inlet pipe (61) pump water and the outlet pipe (62) discharge water.

10. A peristaltic pump according to claim 9, characterized in that: The inner wall of the sealing cover (5) has an annular groove (51), and the mounting rod (32) is rotatably connected to the annular groove (51).

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