Peristaltic infusion pump

Abstract

The invention relates to the technical field of infusion pumps, in particular to a peristaltic infusion pump which comprises a pump body mounted on an infusion supporting rod, a pump door is mounted on the pump body, a pushing matching plate is fixedly arranged at the upper end of the pump door, a matching convex plate is fixedly arranged at the upper end of the pump body, a connecting insertion hole is formed in one side of the matching convex plate, and a connecting hole is formed in the other side of the matching convex plate. When the pump body is installed on the infusion supporting rod, the pump body is inserted into the installation groove to be positioned, an infusion tube penetrates through the pump body, then the pump door is closed, the pump door is opened, and the pump body can be installed on the infusion supporting rod. When the pump door is closed, the movable matching plate is pushed to move under the action of the pushing matching plate, then the movable carrying plate can be driven to move upwards under the action of the movable matching plate, and negative pressure can be formed in the adsorption matching cavity under the action of the matching plug plate along with the upward movement of the movable carrying plate; and therefore, the pump body can be preliminarily fixed under the action of negative pressure.

Description

Technical Field

[0001] The present invention relates to the technical field of infusion pumps, in particular to a peristaltic infusion pump. Background Art

[0002] Peristaltic infusion pump is a kind of equipment widely used in the medical field, mainly used for precise control of liquid delivery, especially in drug delivery and hemodialysis. Its working principle is based on peristalsis. The rotating peristaltic head makes the hose show peristaltic motion, thereby realizing the delivery of fluid. It has precise control, simple operation and can realize pollution-free transmission. It is an indispensable tool for transferring liquid medicine. However, the existing peristaltic infusion pump has a relatively simple external structure, and cannot be installed and disassembled on the infusion support rod quickly and conveniently. It has certain inconveniences in operation, and lacks certain protective mechanisms during use. It is easy to be hit by external factors in complex use environments, which may affect the normal use of the infusion pump. Summary of the invention

[0003] The object of the present invention is to provide a peristaltic infusion pump to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A peristaltic infusion pump comprises a pump body mounted on an infusion support rod, a pump door mounted on the pump body, a push-up mating plate fixedly arranged on the upper end of the pump door, and a mating convex plate fixedly arranged on the upper end of the pump body, a connecting jack is provided on one side of the mating convex plate, and a supporting bottom strip is fixedly arranged on the lower end of the mating convex plate, a plug-in cavity hole is provided on the supporting bottom strip, a mating cavity hole is provided on the lower end side of the pump body, and a first connecting frame is symmetrically fixedly arranged on both sides of the rear end surface of the pump body, an installation mating column is fixedly arranged on the pump body at the lower side of the first connecting frame, an adsorption mating cavity is provided on the installation mating column, and the cavity top of the adsorption mating cavity An installation matching hole is provided, and the installation matching hole passes through the installation matching column. A connecting cavity hole is also provided on the lower side of the rear end surface of the pump body. A matching inner bearing rod is fixedly provided in the connecting cavity hole, and the connecting cavity hole and the matching cavity hole are connected. A supporting carrier plate is installed on the infusion support rod, and an installation groove is provided on the supporting carrier plate. When the pump body is installed on the infusion support rod, it is inserted into the installation groove, and matching bearing strips are symmetrically fixed on both sides of the supporting carrier plate, and a limited position channel is provided on the inner end surface of the matching bearing strip. A protective and convenient installation and disassembly mechanism is provided on the pump body, and the pump body is installed on the infusion support rod through the protective and convenient installation and disassembly mechanism.

[0006] Preferably, the protective convenient installation and disassembly mechanism includes a movable matching plate, a movable carrier plate, a driving connecting plate and a protective carrier plate, the movable matching plate is installed on the upper end of the pump body, a connecting matching rod is fixedly provided on the movable matching plate, the connecting matching rod is inserted into the connecting socket, and an installation carrier is fixedly provided on the end of the connecting matching rod away from the movable matching plate, a matching wheel is installed on the installation carrier, a connecting spring is sleeved on the connecting matching rod, and the matching wheel contacts the push-up matching plate when the pump door is closed.

[0007] Preferably, a second connection frame is symmetrically fixedly provided on the upper end of the movable matching plate, and pendent connecting plates are symmetrically fixedly provided on both ends of the movable matching plate, the lower end of the pendent connecting plate is hinged with a driving hinge rod, and the upper end of the driving hinge rod is hinged with a movable carrier plate.

[0008] Preferably, upper convex connecting frames are symmetrically fixedly provided at both ends of the movable carrier plate, and the upper convex connecting frames are hinged to the upper end of the driving hinge rod, and mounting plug rods are symmetrically fixedly provided at both ends of the lower end of the movable carrier plate, and the mounting plug rods pass through the mounting matching holes and are inserted in the adsorption matching cavity, and a matching plug plate is fixedly provided at the lower end of the mounting plug rod, and the matching plug plate is inserted in the adsorption matching cavity.

[0009] Preferably, a matching connecting strip is fixedly provided on the movable carrier plate between the mounting plug-in rods, a mounting plate groove is opened at the upper end of the movable carrier plate, an inner bearing matching block is fixedly provided in the mounting plate groove, supporting carrier rods are symmetrically fixed on the inner bearing matching block, and movable strip blocks are symmetrically installed in the mounting plate groove.

[0010] Preferably, a support socket is provided at one end of the movable bar, a support rod is inserted into the support socket, a first connecting column is fixedly provided at one end of the movable bar close to the pump body, the first connecting column is inserted in the first connecting frame, and a limiting column is fixedly provided at the other end of the movable bar.

[0011] Preferably, matching through holes are symmetrically provided at both ends of the movable carrier plate, and the limiting plug passes through the matching through holes and is inserted into the limiting channel when it plays a limiting role on the pump body. The lower end of the matching connecting strip is symmetrically hinged with a connecting hinge rod, and the lower end of the connecting hinge rod is hinged with a driving connecting plate.

[0012] Preferably, the driving connecting plate is inserted in the connecting cavity hole, and a matching limiting hole is provided at one end of the driving connecting plate close to the connecting hinge rod, and a matching inner bearing rod is inserted in the matching limiting hole.

[0013] Preferably, a matching carrier rod is fixedly provided on one end of the driving connection plate away from the connecting hinge rod, a matching cavity plate is fixedly provided on the matching carrier rod, and the matching cavity plate is inserted in the matching cavity hole.

[0014] Preferably, protective bearing plates are respectively installed on both sides of the pump body, and a matching movable plug rod is fixedly provided on the upper end of the protective bearing plate, and the matching movable plug rod is inserted in the plug-in cavity hole, and a bearing connecting plate is also fixedly provided on the upper end of the protective bearing plate, and a second connecting column is fixedly provided on the lower end of the bearing connecting plate, and the second connecting column is inserted in the second connecting frame.

[0015] Compared with the prior art, the invention has the following advantages:

[0016] 1. When installing the pump body on the infusion support rod, insert it into the installation groove for positioning, pass the infusion tube through the pump body, and then close the pump door. When the pump door is closed, the push-up matching plate will push the movable matching plate to move, and then the movable matching plate can drive the movable carrier plate to move upward. As the movable carrier plate moves upward, negative pressure can be formed in the adsorption matching cavity under the action of the matching plug plate, and then the preliminary fixation of the pump body can be achieved under the action of the negative pressure.

[0017] 2. When the movable carrier plate moves upward, it will also drive the movable bar to move under the action of the first connecting frame, so that the limiting plug on the movable bar is inserted into the limiting channel to realize the limiting of the pump body. At the same time, when the movable carrier plate moves upward, it will drive the driving connecting plate to move under the action of the connecting hinge rod. With the movement of the driving connecting plate, the matching cavity plate will also move in the matching cavity hole. In this way, negative pressure can be formed in the matching cavity hole under the action of the matching cavity plate, which further strengthens the fixation of the pump body, fully ensures the firmness of the pump body installation, and the operation is simple, convenient and fast.

[0018] 3. In addition, during the movement, the movable matching plate can drive the protective bearing plate to move away from the pump body under the action of the second connecting frame. In this way, under the restrictive effect of the protective bearing plate, people and objects around the pump body can be kept further away from the pump body, which can better ensure the safety of the pump body during use. The protective bearing plate is movable and more flexible to use. When the pump body needs to be disassembled, it is only necessary to open the pump door to remove the restriction of the movable matching plate. In this way, the movable matching plate can be driven to reset under the action of the connecting spring. With the resetting of the movable matching plate, the negative pressure in the adsorption matching cavity and the matching cavity hole can disappear, thereby unlocking the pump body and quickly disassembling it. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the assembly of the pump body and the infusion support rod.

[0020] Figure 2 This is a first-person perspective diagram of the pump assembly.

[0021] Figure 3 A second perspective diagram of the pump assembly.

[0022] Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0023] Figure 5 for Figure 3 A magnified schematic diagram of point B in the middle.

[0024] Figure 6 This is a schematic diagram of the pump body from the first perspective.

[0025] Figure 7 This is a schematic diagram of the pump body from the second perspective.

[0026] Figure 8 It is a structural schematic diagram of the infusion support rod.

[0027] Fig. 9 It is an assembly diagram of the movable matching plate, the movable carrier plate and the driving connecting plate.

[0028] Fig.10 It is a structural schematic diagram of the protective bearing plate.

[0029] In the figure: 1, pump body; 11, pump door; 12, push-up matching plate; 13, matching convex plate; 131, connecting jack; 14, supporting bottom bar; 141, plug-in cavity hole; 15, matching cavity hole; 16, first connecting frame; 17, installation matching column; 171, adsorption matching cavity; 172, installation matching hole; 18, connecting cavity hole; 19, matching inner bearing rod; 2, infusion support rod; 21, support carrier; 22, installation groove; 23, matching bearing strip; 24, limit channel; 3, movable matching plate; 31, connecting matching rod; 32, mounting carrier; 33, matching wheel; 34, connecting spring; 35, second engagement Connecting frame; 36, drooping connecting plate; 37, driving hinge rod; 4, movable carrier plate; 40, upper convex connecting frame; 41, installation plug rod; 42, matching plug plate; 43, matching connecting strip; 44, installation plate groove; 45, inner bearing matching block; 46, supporting carrier rod; 47, movable strip block; 471, supporting socket; 472, first connecting column; 473, limiting plug column; 48, matching through hole; 49, connecting hinge rod; 5, driving connecting plate; 51, matching limiting hole; 52, matching carrier rod; 53, matching cavity plate; 6, protective carrier plate; 61, matching movable plug rod; 62, bearing connecting plate; 63, second connecting column. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 10 , the present invention provides a technical solution:

[0032] A peristaltic infusion pump comprises a pump body 1 mounted on an infusion support rod 2, a pump door 11 being mounted on the pump body 1, a push-up mating plate 12 being fixedly arranged on the upper end of the pump door 11, and a mating convex plate 13 being fixedly arranged on the upper end of the pump body 1, a connecting plug hole 131 being provided on one side of the mating convex plate 13, and a supporting bottom bar 14 being fixedly arranged on the lower end of the mating convex plate 13, a plug-in cavity hole 141 being provided on the supporting bottom bar 14, a mating cavity hole 15 being provided on the lower end side of the pump body 1, and a first connecting frame 16 being fixedly arranged on both sides of the rear end surface of the pump body 1 symmetrically, an installation mating column 17 being fixedly arranged on the pump body 1 at the lower side of the first connecting frame 16, and an inner wall of the first connecting frame 16 being smooth and free of burrs, an adsorption mating cavity 171 being provided on the installation mating column 17, and an installation mating hole 17 being provided on the cavity top of the adsorption mating cavity 171 2. The mounting matching hole 172 passes through the mounting matching column 17. A connecting cavity 18 is also provided on the lower side of the rear end surface of the pump body 1. A matching inner bearing rod 19 is fixedly provided in the connecting cavity 18, and the connecting cavity 18 is connected with the matching cavity 15. A supporting carrier plate 21 is installed on the infusion support rod 2. A mounting groove 22 is provided on the supporting carrier plate 21. When the pump body 1 is installed on the infusion support rod 2, it is inserted into the mounting groove 22, and matching bearing strips 23 are symmetrically fixedly provided on both sides of the supporting carrier plate 21. A limited position channel 24 is provided on the inner end surface of the matching bearing strip 23. A protective and convenient installation and removal mechanism is provided on the pump body 1, and the pump body 1 is installed on the infusion support rod 2 through the protective and convenient installation and removal mechanism. When the pump body 1 is installed on the infusion support rod 2, the side surfaces of the pump body 1 are in contact with the inner walls of the two sides of the installation groove 22.

[0033] The protective convenient installation and disassembly mechanism includes a movable matching plate 3, a movable carrier plate 4, a driving connecting plate 5 and a protective carrier plate 6. The movable matching plate 3 is installed at the upper end of the pump body 1. A connecting matching rod 31 is fixedly provided on the movable matching plate 3. The connecting matching rod 31 is inserted into the connecting socket 131, and a mounting bracket 32 ​​is fixedly provided on the end of the connecting matching rod 31 away from the movable matching plate 3. A matching wheel 33 is installed on the mounting bracket 32. A connecting spring 34 is sleeved on the connecting matching rod 31. The matching wheel 33 contacts the push-up matching plate 12 when the pump door 11 is in the closed state, and the two ends of the connecting spring 34 are respectively fixed on the mounting bracket 32 ​​and the matching convex plate 13. When the pump door 11 is in the closed state, the connecting spring 34 is in a compressed state.

[0034] A second connecting frame 35 is symmetrically fixed on the upper end of the movable matching plate 3, and symmetrically fixed on both ends of the movable matching plate 3 are drooping connecting plates 36, the lower end of the drooping connecting plate 36 is hinged with a driving hinge 37, and the upper end of the driving hinge 37 is hinged with a movable carrier plate 4. In addition, the inner wall of the second connecting frame 35 is smooth and free of burrs.

[0035] The upper ends of both ends of the movable carrier plate 4 are symmetrically fixed with upper convex connecting frames 40, which are hinged to the upper end of the driving hinge rod 37, and the lower ends of the movable carrier plate 4 are symmetrically fixed with mounting plug rods 41, which pass through the mounting matching holes 172 and are inserted in the adsorption matching cavity 171, and the lower ends of the mounting plug rods 41 are fixed with matching plug plates 42, which are inserted in the adsorption matching cavity 171. When the pump door 11 is not closed, the lower end surface of the matching plug plate 42 is flush with the lower end surface of the pump body 1.

[0036] A matching connecting strip 43 is fixedly provided on the movable carrier plate 4 between the mounting plug-in rods 41, a mounting plate groove 44 is opened at the upper end of the movable carrier plate 4, an inner bearing matching block 45 is fixedly provided in the mounting plate groove 44, a supporting carrier rod 46 is symmetrically fixedly provided on the inner bearing matching block 45, and a movable strip block 47 is symmetrically installed in the mounting plate groove 44.

[0037] A support socket 471 is provided at one end of the movable bar 47, and a support rod 46 is inserted into the support socket 471. A first connecting column 472 is fixedly provided at one end of the movable bar 47 close to the pump body 1, and the first connecting column 472 is inserted into the first connecting frame 16. A limiting column 473 is fixedly provided at the other end of the movable bar 47, and the first connecting column 472 is in contact with the inner wall of the first connecting frame 16.

[0038] Matching through holes 48 are symmetrically provided at both ends of the movable carrier plate 4. When the limiting plug 473 plays a limiting role on the pump body 1, it passes through the matching through hole 48 and is inserted into the limiting channel 24, and the limiting plug 473 contacts the inner wall of the limiting channel 24. The inner wall of the limiting channel 24 is smooth and has no burrs. The lower end of the matching connecting strip 43 is symmetrically hinged with a connecting hinge rod 49, and the lower end of the connecting hinge rod 49 is hinged with a driving connecting plate 5.

[0039] The driving connecting plate 5 is inserted into the connecting cavity hole 18 . A matching limiting hole 51 is formed at one end of the driving connecting plate 5 close to the connecting hinge rod 49 . The matching inner bearing rod 19 is inserted into the matching limiting hole 51 .

[0040] A matching carrier rod 52 is fixedly provided on one end of the driving connecting plate 5 away from the connecting hinge rod 49, and a matching cavity plate 53 is fixedly provided on the matching carrier rod 52. The matching cavity plate 53 is inserted into the matching cavity hole 15. In addition, when the pump door 11 is not closed, the outer end surface of the matching cavity plate 53 is flush with the side surface of the pump body 1.

[0041] A protective bearing plate 6 is installed on both sides of the pump body 1, and a matching movable plug rod 61 is fixedly provided on the upper end of the protective bearing plate 6. The matching movable plug rod 61 is inserted in the insertion cavity 141, and a bearing connecting plate 62 is also fixedly provided on the upper end of the protective bearing plate 6. A second connecting column 63 is fixedly provided on the lower end of the bearing connecting plate 62. The second connecting column 63 is inserted in the second connecting frame 35, and the second connecting column 63 contacts the inner wall of the second connecting frame 35.

[0042] When installing the pump body 1, place it in the installation groove 22, position it through the installation groove 22, and then pass the infusion tube through the pump body 1, and then rotate the pump door 11 to close it. During the closing process of the pump door 11, the push-up matching plate 12 on the pump door 11 will contact the matching wheel 33, so that under the action of the push-up matching plate 12, the matching wheel 33 will be pushed to move in the direction of the matching convex plate 13, and the movement of the matching wheel 33 will also drive the movable matching plate 3 to move away from the matching convex plate 13. During the movement of the movable matching plate 3, the drooping connecting plate 36 also moves with it, so that under the action of the driving hinge 37, the movable carrier plate 4 will be driven to move upward, and as the movable carrier plate 4 moves upward, it will The matching plug plate 42 is driven to move upward, so that a negative pressure can be formed in the adsorption matching chamber 171 under the action of the matching plug plate 42, and then the pump body 1 can be initially fixed under the action of the negative pressure in the adsorption matching chamber 171, and in the process of the movable carrier plate 4 moving upward, since the first connecting column 472 is inserted in the first connecting frame 16, the movable bar 47 will be driven to move under the action of the first connecting frame 16, so that the limiting plug column 473 on the movable bar 47 passes through the matching through hole 48 and is inserted in the limiting channel 24, so as to achieve the limiting of the pump body 1. In addition, as the movable carrier plate 4 moves upward, the matching connecting strip 43 will also be driven to move upward, so that under the action of the connecting hinge 49, the two driving connecting plates 5 will be driven to move toward each other. As the driving connecting plate 5 moves, it will drive the matching cavity plate 53 to move synchronously. As the matching cavity plate 53 moves, negative pressure can be formed in the matching cavity hole 15. In this way, the fixation of the pump body 1 can be further strengthened under the action of the negative pressure in the matching cavity hole 15, thereby fully ensuring the firmness and stability of the installation of the pump body 1, and the operation is simple, convenient and fast. In addition, during the movement of the movable matching plate 3, since the second connecting column 63 is inserted into the second connecting frame 35, the protective bearing plate 6 will be driven to move away from the pump body 1 under the action of the second connecting frame 35. In this way, under the limiting action of the protective bearing plate 6, people and objects around the pump body 1 can be placed away from the pump body 1, which can fully ensure the pump body. 1 is safe during use, and the protective bearing plate 6 is movable, making it more flexible and convenient to use. Moreover, when the pump body 1 needs to be disassembled, it is only necessary to open the pump door 11. With the opening of the pump door 11, the movable matching plate 3 loses its restriction, so that the movable matching plate 3 will be driven to reset in the direction of the matching convex plate 13 under the action of the connecting spring 34. With the reset movement of the movable matching plate 3, the movable carrier plate 4 will be driven to move downward under the action of the driving hinge rod 37, thereby eliminating the negative pressure in the adsorption matching cavity 171. At the same time, under the action of the first connecting frame 16, the movable bar 47 is reset, so that the limiting plug 473 on the movable bar 47 exits the limiting channel 24, and loses the restriction on the pump body 1.As the movable carrier plate 4 moves downward, the two driving connecting plates 5 will be driven to move in the opposite direction and reset under the action of the connecting hinge 49, so that the negative pressure in the matching cavity 15 disappears, and the pump body 1 is completely unlocked. In addition, as the movable matching plate 3 is reset, the protective carrier plate 6 will also be driven to reset under the action of the second connection frame 35.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A peristaltic infusion pump, comprising a pump body (1) mounted on an infusion support rod (2), characterized in that: The pump body (1) is provided with a pump door (11), the upper end of the pump door (11) is fixedly provided with a push-up matching plate (12), and the upper end of the pump body (1) is fixedly provided with a matching convex plate (13), one side of the matching convex plate (13) is provided with a connecting plug hole (131), and the lower end of the matching convex plate (13) is fixedly provided with a supporting bottom strip (14), and the supporting bottom strip (14) is provided with a plug-in cavity hole (141), the lower end side of the pump body (1) is provided with a matching cavity hole (15), and the rear end surface of the pump body (1) is symmetrically fixedly provided with a first connecting frame (16) on both sides, and the pump body (1) is fixedly provided with an installation matching column (17) on the lower side of the first connecting frame (16), and the installation matching column (17) is provided with an adsorption matching cavity (171), and the cavity top of the adsorption matching cavity (171) is provided with an installation matching hole (172) ), the mounting matching hole (172) penetrates the mounting matching column (17), the lower side of the rear end surface of the pump body (1) is also provided with a connecting cavity hole (18), a matching inner bearing rod (19) is fixedly arranged in the connecting cavity hole (18), and the connecting cavity hole (18) and the matching cavity hole (15) are connected, the infusion support rod (2) is provided with a supporting carrier plate (21), the supporting carrier plate (21) is provided with a mounting groove (22), when the pump body (1) is installed on the infusion support rod (2), it is inserted into the mounting groove (22), and matching bearing strips (23) are symmetrically fixedly arranged on both sides of the supporting carrier plate (21), and a limited position channel (24) is provided on the inner end surface of the matching bearing strip (23), the pump body (1) is provided with a protective convenient installation and removal mechanism, and the pump body (1) is installed on the infusion support rod (2) through the protective convenient installation and removal mechanism.

2. A peristaltic infusion pump according to claim 1, characterized in that: The protective convenient installation and disassembly mechanism comprises a movable matching plate (3), a movable carrier plate (4), a driving connection plate (5) and a protective carrier plate (6); the movable matching plate (3) is mounted on the upper end of the pump body (1); a connecting matching rod (31) is fixedly provided on the movable matching plate (3); the connecting matching rod (31) is plugged into a connecting socket (131); and a mounting bracket (32) is fixedly provided on the end of the connecting matching rod (31) away from the movable matching plate (3); a matching rotating wheel (33) is mounted on the mounting bracket (32); a connecting spring (34) is sleeved on the connecting matching rod (31); and the matching rotating wheel (33) contacts the push-up matching plate (12) when the pump door (11) is in a closed state.

3. A peristaltic infusion pump according to claim 2, characterized in that: A second connection frame (35) is symmetrically fixedly arranged at the upper end of the movable matching plate (3), and symmetrically fixedly arranged downward connecting plates (36) are arranged at both ends of the movable matching plate (3), the lower end of the downward connecting plate (36) is hingedly connected to a driving hinge rod (37), and the upper end of the driving hinge rod (37) is hingedly connected to a movable carrier plate (4).

4. A peristaltic infusion pump according to claim 3, characterized in that: The upper ends of the two ends of the movable carrier plate (4) are symmetrically fixed with upper convex connecting frames (40), and the upper convex connecting frames (40) are hinged to the upper end of the driving hinge rod (37), and the lower ends of the movable carrier plate (4) are symmetrically fixed with mounting plug rods (41), and the mounting plug rods (41) pass through the mounting matching holes (172) and are plugged into the adsorption matching cavity (171), and the lower ends of the mounting plug rods (41) are fixed with matching plug plates (42), and the matching plug plates (42) are plugged into the adsorption matching cavity (171).

5. A peristaltic infusion pump according to claim 4, characterized in that: A matching connection strip (43) is fixedly arranged on the movable carrier plate (4) between the mounting plug rods (41); a mounting plate groove (44) is provided at the upper end of the movable carrier plate (4); an inner bearing matching block (45) is fixedly arranged in the mounting plate groove (44); a supporting carrier rod (46) is symmetrically fixedly arranged on the inner bearing matching block (45); and a movable strip block (47) is symmetrically installed in the mounting plate groove (44).

6. A peristaltic infusion pump according to claim 5, characterized in that: A support socket (471) is provided at one end of the movable bar (47), a support rod (46) is inserted into the support socket (471), a first connection column (472) is fixedly provided at one end of the movable bar (47) close to the pump body (1), the first connection column (472) is inserted into the first connection frame (16), and a limit plug column (473) is fixedly provided at the other end of the movable bar (47).

7. A peristaltic infusion pump according to claim 6, characterized in that: The two ends of the movable carrier plate (4) are symmetrically provided with matching through holes (48); when the limiting plug column (473) plays a limiting role on the pump body (1), it passes through the matching through hole (48) and is inserted into the limiting channel (24); the lower end of the matching connecting strip (43) is symmetrically hinged with a connecting hinge rod (49); and the lower end of the connecting hinge rod (49) is hinged with a driving connecting plate (5).

8. A peristaltic infusion pump according to claim 7, characterized in that: The driving connection plate (5) is inserted into the connection cavity hole (18), and a matching limit hole (51) is provided at one end of the driving connection plate (5) close to the connection hinge rod (49), and a matching inner support rod (19) is inserted into the matching limit hole (51).

9. A peristaltic infusion pump according to claim 8, characterized in that: A matching carrier rod (52) is fixedly provided on one end of the driving connection plate (5) away from the connecting hinge rod (49), a matching cavity plate (53) is fixedly provided on the matching carrier rod (52), and the matching cavity plate (53) is inserted into the matching cavity hole (15).

10. A peristaltic infusion pump according to claim 9, characterized in that: A protective bearing plate (6) is respectively installed on both sides of the pump body (1), and a matching movable plug rod (61) is fixedly provided on the upper end of the protective bearing plate (6), and the matching movable plug rod (61) is inserted in the insertion cavity (141), and a bearing connecting plate (62) is also fixedly provided on the upper end of the protective bearing plate (6), and a second connecting column (63) is fixedly provided on the lower end of the bearing connecting plate (62), and the second connecting column (63) is inserted in the second connecting frame (35).

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