Peristaltic pump

Abstract

The embodiment of the utility model relates to the technical field of peristaltic pumps, in particular to a peristaltic pump which comprises a base. The extrusion assembly is arranged on the base; the elastic hose is arranged around the extrusion assembly, and the extrusion assembly is used for extruding the elastic hose in a clearance mode and pushing fluid of the elastic hose; the mounting assembly comprises a fixed seat, an adjusting part and a sliding seat, the fixed seat is fixed to the base, the sliding seat is slidably connected to the fixed seat, one end of the adjusting part is connected to the fixed seat, the other end of the adjusting part is connected to the sliding seat, the sliding seat corresponds to the extrusion assembly, and the adjusting part is used for pushing the sliding seat to slide relative to the fixed seat; when the sliding base is located at the first preset position, the extrusion assembly and the sliding base jointly clamp the elastic hose, and when the sliding base is located at the second preset position, a disassembly space is formed between the extrusion assembly and the sliding base. In this way, the peristaltic pump can improve the efficiency of replacing the spring hose.

Description

Technical Field

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

[0002] A peristaltic pump is a pump that pushes fluid by squeezing a flexible pipe. The peristaltic pump includes a base, a driving member, an eccentric structure, an elastic hose and a hose mounting seat. The driving member is fixed to the base, the driving wheel of the driving member is connected to the eccentric structure, the elastic hose is arranged around the eccentric structure, the hose mounting seat is fixed to the base, the hose mounting seat is provided with a mounting groove, and part of the elastic hose is accommodated in the mounting groove. The driving member is used to drive the eccentric structure to rotate so that the hose mounting seat and the eccentric structure can jointly clamp the elastic hose to achieve quantitative output of fluid.

[0003] However, in the process of implementing the embodiments of the utility model, the inventors found that the hose mounting base is fixed to the base by bolts, and the output fluid is obtained by continuously squeezing the elastic hose, which can easily cause the elastic hose to be worn or damaged. When replacing the elastic hose, the bolts fixing the base are loosened or tightened. This method of replacing the elastic hose is inefficient. Utility Model Content

[0004] An embodiment of the utility model provides a peristaltic pump, which can increase the efficiency of replacing a spring hose.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a peristaltic pump, including a base; an extrusion assembly, which is arranged on the base; an elastic hose, which is arranged around the extrusion assembly, and the extrusion assembly is used to gap extrude the elastic hose and push the fluid of the elastic hose; an installation assembly, including a fixed seat, an adjusting member and a slide seat, the fixed seat is fixed to the base, the slide seat is slidably connected to the fixed seat, one end of the adjusting member is connected to the fixed seat, and the other end of the adjusting member is connected to the slide seat, the slide seat corresponds to the extrusion assembly, and the adjusting member is used to push the slide seat to slide relative to the fixed seat; when the slide seat is located at a first preset position, the extrusion assembly and the slide seat jointly clamp the elastic hose, and when the slide seat is located at a second preset position, a disassembly space is provided between the extrusion assembly and the slide seat.

[0006] Optionally, a positioning groove is provided at one end of the slide seat facing the extrusion assembly, and the positioning groove is used to accommodate the elastic hose.

[0007] Optionally, the wall surface of the positioning groove is a guide wall surface.

[0008] Optionally, the adjusting member is an elastic member.

[0009] Optionally, the extrusion assembly is provided with a screw hole; the slide seat is provided with a first through hole; the adjusting member is a bolt, and the bolt passes through the first through hole and is screwed to the screw hole.

[0010] Optionally, the extrusion assembly includes a driving member and an eccentric structure, the driving member is connected to the eccentric structure, the elastic hose is wound around the eccentric structure, the eccentric structure corresponds to the slide seat, and the driving member is used to drive the eccentric structure to rotate so that the eccentric structure extrudes the elastic hose.

[0011] Optionally, the direction of the slide toward the extrusion assembly is perpendicular to the rotation axis of the eccentric structure.

[0012] Optionally, the eccentric structure includes a seat body and at least one fixed column, one end of the seat body is connected to the driving member, and the fixed column is arranged at the other end of the seat body, and the driving member is used to drive the seat body to rotate, wherein the fixed column is located outside the rotation axis of the seat body.

[0013] Optionally, the eccentric structure further includes a roller, the roller is provided with a rotation hole, and the fixing column is inserted into the rotation hole.

[0014] Optionally, the peristaltic pump further comprises a pipe assembly, and the pipe assembly is plugged into a port of the elastic hose.

[0015] The beneficial effect of the embodiment of the present application is that when replacing the elastic hose, the adjusting member is driven by applying external force, so that the adjusting member pushes the slide seat to move away from the extrusion assembly until it moves to the second preset position, and a disassembly space is provided between the extrusion assembly and the slide seat, and the worn or damaged elastic hose is taken out through the disassembly space, and an unworn elastic hose is placed in the disassembly space, and an external force is applied again to drive the adjusting member, so that the adjusting member pushes the slide seat to move toward the base, and the slide seat moves from the second preset position to the first preset position, so that the extrusion assembly and the slide seat jointly clamp the elastic hose, thereby realizing rapid replacement of the elastic hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0017] Figure 1 This is a diagram showing that the extrusion assembly and the mounting assembly of the peristaltic pump provided by the embodiment of the utility model jointly clamp the elastic hose;

[0018] Figure 2This is a diagram showing a disassembly space between the extrusion assembly and the mounting assembly of a peristaltic pump provided by an embodiment of the utility model;

[0019] Figure 3 It is an exploded diagram of a peristaltic pump provided by an embodiment of the utility model;

[0020] Figure 4 This is a diagram showing the connection between the fixed seat and the sliding seat of the peristaltic pump provided by the embodiment of the utility model;

[0021] Figure 5 This is a view of a pipeline assembly of a peristaltic pump provided by an embodiment of the utility model.

[0022] Reference numerals:

[0023] 100. peristaltic pump; 100a. disassembly space;

[0024] 10. base; 11. first plate; 12. second plate; 12a. opening; 12b. second through hole;

[0025] 20. Mounting assembly; 21. Fixing seat; 22. Adjusting member; 23. Sliding seat; 23a. Positioning groove; 23b. Spring groove; 23c. Spring opening; 30. Elastic hose;

[0026] 40. Extrusion assembly; 41. Driving member; 42. Eccentric structure; 421. Base; 422. Fixed column; 423. Roller; 423a. Rotation hole; 424. Anti-drop cover;

[0027] 50. Pipe assembly; 51. Connector body; 52. First stopper; 53. Second stopper. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0030] See also Figure 1 The peristaltic pump 100 includes a base 10, a mounting assembly 20, an elastic hose 30 and an extrusion assembly 40. The mounting assembly 20 and the extrusion assembly 40 are both arranged on the base 10. The elastic hose 30 is arranged around the extrusion assembly 40, and the elastic hose 30 is located between the extrusion assembly 40 and the mounting assembly 20. The extrusion assembly 40 is used to intermittently extrude the elastic hose 30 and push the fluid in the elastic hose 30. When the extrusion assembly 40 extrude the elastic hose 30, the extrusion assembly 40 can move the elastic hose 30 toward the mounting assembly 20, and the mounting assembly 20 can resist the movement of the elastic hose 30, so that the elastic hose 30 undergoes elastic deformation, and the volume in the elastic hose 30 changes from large to small, thereby pushing the fluid in the elastic hose 30 to move. It should be noted that intermittent extrusion is that the extrusion assembly 40 periodically extrudes the elastic hose 30, that is, in one cycle, for a period of time, the extrusion assembly 40 extrude the elastic hose 30, and for another period of time, the extrusion assembly 40 is out of contact with the elastic hose 30.

[0031] For the base 10 mentioned above, see Figure 1 The base 10 is in an L-shaped plate shape. Optionally, the base 10 includes a first plate body 11 and a second plate body 12, the first plate body 11 is connected to the second plate body 12, and the first plate body 11 and the second plate body 12 are vertically arranged, and the extrusion assembly 40 and the installation assembly 20 are both arranged on the second plate body 12.

[0032] For the above-mentioned installation assembly 20, see Figure 1-Figure 2 The mounting assembly 20 includes a fixed seat 21, an adjusting member 22 and a slide 23. The fixed seat 21 is fixed to the first plate 11 of the base 10, the slide 23 is slidably connected to the fixed seat 21, one end of the adjusting member 22 is connected to the fixed seat 21, and the other end of the adjusting member 22 is connected to the slide 23. The slide 23 corresponds to the elastic hose 30, and the adjusting member 22 is used to push the slide 23 to slide relative to the fixed seat 21. When the slide 23 is located at the first preset position, the extrusion assembly 40 and the slide 23 jointly clamp the elastic hose 30, such as Figure 1 When the slide 23 is located at the second preset position, there is a disassembly space 100a between the extrusion assembly 40 and the slide 23, as shown in FIG. Figure 2When the elastic hose 30 is replaced, the adjusting member 22 is driven by applying external force, so that the adjusting member 22 pushes the slide 23 to move away from the extrusion assembly 40 until it moves to the second preset position. A disassembly space 100a is provided between the extrusion assembly 40 and the slide 23. The worn or damaged elastic hose 30 is taken out through the disassembly space 100a, and an unworn elastic hose 30 is placed in the disassembly space 100a. The adjusting member 22 is driven by applying external force again, so that the adjusting member 22 pushes the slide 23 to move toward the base 10, and the slide 23 moves from the second preset position to the first preset position, so that the extrusion assembly 40 and the slide 23 clamp the elastic hose 30 together, thereby realizing the rapid replacement of the elastic hose 30.

[0033] In some embodiments, the adjusting member 22 is an elastic member, such as an elastic spring or an elastic soft rubber. A spring groove 23b is provided on the end surface of the slide 23 facing the fixed seat 21, and a spring opening 23c is provided along the end surface of the slide 23 facing the extrusion assembly 40. The spring opening 23c is connected to the spring groove 23b. The spring groove 23b and the fixed seat 21 are enclosed together to form a spring cavity. The elastic member is accommodated in the spring cavity, and one end of the elastic member is connected to the fixed seat 21, and the other end of the elastic member is connected to the wall surface of the spring groove 23b, such as Figure 4 As shown. In this way, the spring cavity or spring groove 23b has a guiding effect on the elastic member, reducing the risk of the elastic member being offset during compression or tension movement. When the extrusion assembly 40 squeezes the elastic hose 30, the extrusion assembly 40 can push the elastic hose 30 to move toward the mounting assembly 20, and the elastic hose 30 pushes the slide 23 to move away from the extrusion assembly 40, so that the moving elastic member performs a compression movement, and the elastic member generates an elastic force, and the direction of the elastic force is consistent with the direction of the slide 23 toward the extrusion assembly 40. When the extrusion assembly 40 is out of contact with the elastic hose 30, the elastic member performs a reset movement, that is, the elastic force of the elastic member drives the slide 23 to move toward the extrusion assembly 40, thereby achieving flexible extrusion of the elastic hose 30 by the extrusion assembly 40. In addition, as the elastic hose 30 continues to wear or produces permanent deformation, the distance of the elastic hose 30 along the extrusion assembly 40 toward the mounting assembly 20 becomes smaller, and the elastic member always maintains the elastic force of the mounting assembly 20 toward the extrusion assembly 40, so that the elastic member has a compensating effect. It can be understood that when no external force acts on the slide 23, the slide 23 always abuts against the elastic hose 30, so that the extrusion assembly 40 and the slide 23 jointly clamp the elastic hose 30.

[0034] In some embodiments, the adjusting member 22 is a bolt, and the bolt is used to adjust the movement of the slide seat 23 relative to the fixed seat 21. Specifically, the extrusion assembly 40 is provided with a screw hole, and the slide seat 23 is provided with a first through hole. The bolt passes through the first through hole and is screwed to the screw hole. By rotating the bolt, the slide seat 23 moves toward the extrusion assembly 40 or moves away from the extrusion assembly 40.

[0035] For the above slide 23, see Figure 3 The end of the slide 23 facing the extrusion assembly 40 is provided with a positioning groove 23a, which is used to accommodate the elastic hose 30. The positioning groove 23a has a quick positioning effect on the elastic hose 30 and can also reduce the elastic hose 30 from being separated from the slide 23. Specifically, part of the elastic hose 30 is accommodated in the positioning groove 23a. It can be understood that one end of the elastic hose 30 is against the bottom wall of the positioning groove 23a, and the other end of the elastic hose 30 protrudes from the positioning groove 23a. The extrusion assembly 40 squeezes the part of the elastic hose 30 protruding from the positioning groove 23a.

[0036] In some embodiments, the wall surface of the positioning groove 23a is a guide wall surface. It can be understood that the wall surface of the positioning groove 23a is an inclined surface or an arc surface, and the guide wall surface can guide the flexible hose to be quickly accommodated in the positioning groove 23a.

[0037] The elastic hose 30 is made of rubber, silicone, or any other flexible hose. The elastic hose 30 has a hose channel disposed inside thereof for fluid circulation.

[0038] For the extrusion assembly 40 described above, see Figure 1 The extrusion assembly 40 includes a driving member 41 and an eccentric structure 42. The driving member 41 is connected to the eccentric structure 42. The elastic hose 30 is wound around the eccentric structure 42. The eccentric structure 42 corresponds to the slide seat 23 of the mounting assembly 20. The driving member 41 is used to drive the eccentric structure 42 to rotate so that the eccentric structure 42 squeezes the elastic hose 30. When the driving member 41 drives the eccentric structure 42 to rotate, the eccentric structure 42 squeezes the gap of the elastic hose 30 and pushes the fluid in the elastic hose 30 to move.

[0039] For the above-mentioned eccentric structure 42, the eccentric structure 42 can be an eccentric wheel, and any structure that can realize the gap extrusion of the elastic hose 30 and promote the movement of the fluid in the elastic hose 30 is applicable, and is not limited here. In some embodiments, the eccentric structure 42 includes a seat body 421 and at least one fixing column 422, such as Figure 3 As shown, one end of the seat body 421 is connected to the driving member 41, and the fixing column 422 is disposed at the other end of the seat body 421. The driving member 41 is used to drive the seat body 421 to rotate, wherein the fixing column 422 is located outside the rotation axis of the seat body 421, and the direction of the slide 23 toward the extrusion assembly 40 is perpendicular to the rotation axis of the eccentric structure 42. In some embodiments, as Figure 3As shown, the eccentric structure 42 also includes a roller 423, and the roller 423 is provided with a rotation hole 423a, the rotation hole 423a passes through the roller 423, and the fixed column 422 is inserted into the rotation hole 423a. In this embodiment, the number of the fixed columns 422 is four, and the four fixed columns 422 are arranged at intervals on the seat body 421, and the line between two adjacent fixed columns 422 forms an equilateral shape, and the equilateral shape is a polygon. When the driving member 41 drives the seat body 421 to rotate, the roller 423 contacts the elastic hose 30, and the roller 423 rolls along the elastic hose 30 while squeezing the elastic hose 30, thereby reducing the wear of the extrusion assembly 40 on the elastic hose 30, thereby extending the service life of the elastic hose 30.

[0040] In some embodiments, Figure 3 As shown, the eccentric structure 42 further includes an anti-detachment cover 424, which is located at one end of the fixing column 422 away from the seat body 421, and the anti-detachment cover 424 is connected to the fixing column 422, and the cross-sectional area of ​​the anti-detachment cover 424 along the direction from the fixing column 422 to the seat body 421 is larger than the area of ​​the polygon formed by the connecting line between the adjacent fixing columns 422, so that the anti-detachment cover 424 can reduce the risk of the elastic hose 30 detaching from the slide seat 23. It is worth noting that when the extrusion assembly 40 and the slide seat 23 jointly clamp the elastic hose 30, and before the elastic hose 30 is not completely received in the positioning groove 23a, there is a gap between the extrusion assembly 40 and the slide seat 23, and along the direction from the extrusion assembly 40 to the mounting assembly 20, the spacing of the gap is smaller than the length of the elastic hose 30, and part of the anti-detachment cover 424 can close the gap, and the elastic hose 30 is not allowed to pass through the gap.

[0041] The peristaltic pump 100 further includes a pipeline assembly 50, such as Figure 1 or Figure 2 Combination Figure 5 As shown. The pipe assembly 50 is plugged into the port of the elastic hose 30. Specifically, the pipe assembly 50 includes a joint body 51, a first stopper 52 and a second stopper 53. The joint body 51 is provided with a channel for fluid flow. Along the channel direction, the first stopper 52 and the second stopper 53 are spaced apart from each other on the joint body 51, and the cross-sectional area of ​​the first stopper 52 and the cross-sectional area of ​​the second stopper 53 are greater than the cross-sectional area of ​​the joint body 51. Figure 3 As shown, the second plate body 12 is provided with an opening 12a and a second through hole 12b. The second through hole 12b passes through the plate body along the direction from the first plate body 11 to the second plate body 12. The opening 12a is connected to the second through hole 12b. The opening 12a is located at the edge of the second plate body 12. The connector body 51 is inserted into the second through hole 12b, and the second plate body 12 is located between the first limit member 52 and the second limit member 53, thereby limiting the movement of the pipeline assembly 50 along the first plate body 11 toward the second plate body 12 or the second plate body 12 toward the first plate body 11, thereby enhancing the stability of the elastic hose 30.

[0042] When the elastic hose 30 is replaced in the embodiment of the present application, the adjusting member 22 is driven by applying an external force, so that the adjusting member 22 pushes the slide 23 to move away from the extrusion assembly 40 until it moves to the second preset position. A disassembly space 100a is defined between the extrusion assembly 40 and the slide 23. The worn or damaged elastic hose 30 is taken out through the disassembly space 100a, and an unworn elastic hose 30 is placed in the disassembly space 100a. An external force is applied again to drive the adjusting member 22, so that the adjusting member 22 pushes the slide 23 to move toward the base 10, and the slide 23 moves from the second preset position to the first preset position, so that the extrusion assembly 40 and the slide 23 jointly clamp the elastic hose 30, thereby realizing rapid replacement of the elastic hose 30.

[0043] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the utility model.

Claims

1. A peristaltic pump, characterized in that: include: Base; An extrusion assembly is disposed on the base; An elastic hose, arranged around the extrusion assembly, the extrusion assembly is used to intermittently extrude the elastic hose and push the fluid in the elastic hose; The mounting assembly comprises a fixed seat, an adjusting member and a sliding seat, wherein the fixed seat is fixed to the base, the sliding seat is slidably connected to the fixed seat, one end of the adjusting member is connected to the fixed seat, and the other end of the adjusting member is connected to the sliding seat, the sliding seat corresponds to the extrusion assembly, and the adjusting member is used to push the sliding seat to slide relative to the fixed seat; When the slide is located at a first preset position, the extrusion assembly and the slide clamp the elastic hose together, and when the slide is located at a second preset position, a disassembly space is provided between the extrusion assembly and the slide.

2. The peristaltic pump according to claim 1, characterized in that: A positioning groove is arranged at one end of the slide seat facing the extrusion assembly, and the positioning groove is used for accommodating the elastic hose.

3. The peristaltic pump according to claim 2, characterized in that: The wall surface of the positioning groove is a guide wall surface.

4. The peristaltic pump according to claim 1, characterized in that: The adjusting member is an elastic member.

5. The peristaltic pump according to claim 1, characterized in that: The extrusion assembly is provided with a screw hole; The slide seat is provided with a first through hole; The adjusting member is a bolt, and the bolt passes through the first through hole and is screwed into the screw hole.

6. The peristaltic pump according to claim 1, characterized in that: The extrusion assembly includes a driving member and an eccentric structure, the driving member is connected to the eccentric structure, the elastic hose is wound around the eccentric structure, the eccentric structure corresponds to the slide seat, and the driving member is used to drive the eccentric structure to rotate so that the eccentric structure extrudes the elastic hose.

7. The peristaltic pump according to claim 6, characterized in that: The direction of the slide seat toward the extrusion assembly is perpendicular to the rotation axis of the eccentric structure.

8. The peristaltic pump according to claim 7, characterized in that: The eccentric structure includes a seat body and at least one fixed column, one end of the seat body is connected to the driving member, and the fixed column is arranged at the other end of the seat body. The driving member is used to drive the seat body to rotate, wherein the fixed column is located outside the rotation axis of the seat body.

9. The peristaltic pump according to claim 8, characterized in that: The eccentric structure further comprises a roller, the roller is provided with a rotation hole, and the fixing column is inserted into the rotation hole.

10. The peristaltic pump according to any one of claims 1 to 9, characterized in that: The peristaltic pump further comprises a pipeline assembly, and the pipeline assembly is plugged into the port of the elastic hose.

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