High-pressure infusion pump assembling device convenient to overhaul

Abstract

The utility model relates to the technical field of high-pressure infusion pumps, in particular to a high-pressure infusion pump assembling device convenient to overhaul, which comprises two worms, two sliding blocks and a machine base, the outer surfaces of the worms are meshed with worm gears, the inner walls of the worms are fixedly connected with connecting rods, and the outer surfaces of the connecting rods are fixedly connected with connecting discs; two strip-shaped rods are fixedly installed on the upper surface of the machine base, strip-shaped grooves are formed in the faces, away from each other, of the strip-shaped rods, two strip-shaped blocks are slidably connected to the inner walls of the strip-shaped grooves, and two glass baffles are arranged above the machine base. The faces, away from each other, of the strip-shaped blocks are fixedly connected with the inner walls of the corresponding glass baffles, movement of the connecting rods is achieved, the effect that the first clamping piece can be rapidly installed and detached through the device is achieved, an operator can conveniently overhaul the device and replace the first clamping piece, meanwhile, connection between bolts and sliding blocks is omitted, and the phenomenon of thread slipping can be prevented.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of high-pressure infusion pumps, in particular to a high-pressure infusion pump assembling device facilitating maintenance. BACKGROUND

[0002] An infusion pump is usually a mechanical or electronic control device which controls the infusion speed by acting on an infusion catheter, and is commonly used in situations where the infusion amount and the drug amount need to be strictly controlled, such as when a pressurizing drug, an antiarrhythmic drug, an infant intravenous infusion or intravenous anesthesia is applied.

[0003] The existing infusion pump usually simultaneously installs an infusion tube above the device, fixes the infusion tube through clamping, and drives the infusion tube through a threaded rod or an electric telescopic rod to achieve the infusion effect.

[0004] However, in the existing high-pressure infusion pump mounting mechanism, the injection tube needs to be clamped, and the existing clamping is achieved through the connection between the threaded rod and the sliding block to limit the clamping piece and clamp the injection tube. After long-term use, the threaded rod may slip, so that the clamping piece cannot be disassembled, which is inconvenient for maintenance and replacement of the operator, and the operator may be accidentally touched.

[0005] Therefore, a new scheme needs to be proposed to solve this problem. SUMMARY

[0006] In order to facilitate the maintenance and replacement of the clamping piece in the mounting mechanism, the application provides a high-pressure infusion pump assembling device facilitating maintenance.

[0007] The high-pressure infusion pump assembling device facilitating maintenance provided by the application adopts the following technical scheme: two worms, two sliding blocks and a base are included, the outer surface of each worm is meshed with a worm gear, the inner wall of each worm gear is fixedly connected with a connecting rod, the outer surface of each connecting rod is fixedly connected with a connecting disc, the upper surface of each connecting disc is provided with equidistantly arranged arc-shaped grooves, the inner wall of each arc-shaped groove is slidably connected with a connecting rod, the outer surface of each connecting rod is rotatably connected with a sliding block one, one side of each sliding block one close to each other is fixedly connected with a clamping block, the upper surface of each sliding block is provided with two sliding grooves, the inner wall of each sliding groove is slidably connected with a clamping piece, the upper surface of each clamping piece is fixedly connected with a limiting rod, the upper surface of the base is fixedly installed with two strip-shaped rods, one side of each strip-shaped rod away from each other is provided with a strip-shaped groove, the inner wall of each strip-shaped groove is slidably connected with two strip-shaped blocks, the upper portion of the base is provided with two glass baffles, and one side of each strip-shaped block away from each other is fixedly connected with the inner wall of the corresponding glass baffle.

[0008] Optionally, the inner wall of each sliding block is rotationally connected with the outer surface of the corresponding worm, the inner wall of each sliding block is rotationally connected with the top end and the bottom end of the corresponding connecting rod, the inside of each sliding block is provided with two sliding grooves one and two sliding grooves two, the inner wall of each sliding groove one is slidingly connected with the outer surface of the corresponding sliding block one, and the inner wall of each sliding groove two is slidingly connected with the outer surface of the corresponding connecting rod.

[0009] Optionally, the left side of each sliding block is provided with a threaded rod one, the outer surface of each threaded rod one is threadedly connected with a clamping piece one, and the inner wall of each clamping piece one is in sliding contact with the outer surface of the corresponding limiting rod.

[0010] Optionally, the upper surface of the machine base is fixedly connected with two fixed blocks and two supporting blocks, the right side surface of each fixed block is fixedly connected with two guide rods, and the outer surface of each guide rod is slidingly connected with the inner wall of the corresponding sliding block.

[0011] Optionally, the upper surface of the machine base is provided with two limiting grooves, the inner wall of each limiting groove is slidingly connected with a limiting block, the upper surface of each limiting block is fixedly connected with the bottom surface of the corresponding sliding block, the inner wall of the machine base is fixedly embedded with two telescopic rods, and the output end of each telescopic rod is fixedly connected with the right side surface of the corresponding limiting block.

[0012] Optionally, the left side surface of each supporting block is fixedly connected with the right end of the corresponding guide rod, the upper surface of each supporting block is provided with a cavity, and the inner wall of each cavity is slidingly connected with a circular block.

[0013] Optionally, the upper surface of each circular block is fixedly connected with a guide pin, the outer surface of each guide pin is slidingly connected with the inner wall of the corresponding supporting block, and the outer surface of each guide pin is fixedly connected with a pressing rod.

[0014] Optionally, the inner top wall of each cavity is fixedly connected with a spring, and the bottom end of each spring is in contact with the upper surface of the corresponding circular block.

[0015] Optionally, the left side of each supporting block is provided with a clamping piece two, the upper surface of each supporting block is provided with two mounting grooves, and the inner wall of each mounting groove is slidingly connected with the outer surface of the corresponding clamping piece two.

[0016] Optionally, the inner wall of each supporting block is threadedly connected with a threaded rod two, and the outer surface of each threaded rod two is fixedly connected with a baffle.

[0017] In summary, the present application has the following beneficial technical effects:

[0018] 1. The present application sets up worm, worm wheel, connecting disc, arc-shaped groove, sliding block one, clamping block, clamping piece and other components, moves the limiting rod to drive the clamping piece and the clamping block to be placed correspondingly, drives the worm wheel to rotate through rotating the worm, makes the connecting disc rotate through the worm wheel, connecting rod and connecting disc, realizes the movement of the connecting rod through the connecting disc, arc-shaped groove and connecting rod, drives the corresponding sliding block one to move, drives the corresponding clamping block and the corresponding clamping piece to be connected through the sliding block one, and the clamping piece can be taken off by reversing the worm, thereby realizing the quick installation and disassembly effect of the device on the clamping piece one, facilitating the operation personnel to overhaul and replace the clamping piece one, and simultaneously canceling the connection of the bolt and the sliding block, which can prevent the occurrence of the silk slipping phenomenon.

[0019] 2. The present application sets up strip-shaped rod, strip-shaped groove, strip-shaped block, glass baffle and other components, installs the strip-shaped rod on the surface of the machine base, opens the strip-shaped groove and places the strip-shaped block on the inner wall, and is arranged as a sliding connection, when the device is installed in place, the corresponding strip-shaped block is driven to slide in the corresponding strip-shaped groove by moving the glass baffle, so that the two glass baffles cover the components above the machine base, thereby realizing that the device can prevent the operation personnel from observing the infusion status while preventing the operation personnel from being affected by the phenomenon of affecting the device work caused by accidental touch or other sudden situations.

[0020] 3. The present application sets up guide pin, circular block, pressure rod, spring and other components, places the injection tube above the supporting block, drives the circular block to rise in the cavity by lifting the guide pin, compresses the spring through the circular block, at this time, the guide pin drives the pressure rod to rise, drives the pressure rod to rotate by rotating the guide pin, adapts the pressure rod and the injection tube, loosens the guide pin, at this time, under the action of the spring, the circular block is pressed down tightly, the circular block drives the guide pin and the pressure rod to descend, realizes the clamping effect of the injection tube through the pressure rod, realizes that the device can clamp and install injection tubes of different sizes through the inclined surface of the supporting block and the pressure rod. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall structure schematic diagram in the embodiment of the present application;

[0022] Figure 2 It is the structure schematic diagram of the front view in the embodiment of the present application;

[0023] Figure 3 It is the structure schematic diagram of the connection relationship between the strip-shaped block and the glass baffle in the embodiment of the present application;

[0024] Figure 4 It is the structure schematic diagram of the connection relationship between the telescopic rod and the limiting block in the embodiment of the present application;

[0025] Figure 5is a structural schematic view of the connection relationship between the worm and the worm gear in the embodiment of the application;

[0026] Figure 6 is a structural schematic view of the connection relationship between the guide pin and the pressing rod.

[0027] FIG. 1 is a worm; 2 is a worm gear; 3 is a connecting rod; 4 is a connecting disc; 5 is an arc-shaped groove; 6 is a connecting rod; 7 is a sliding block; 8 is a clamping block; 9 is a clamping piece; 10 is a limiting rod; 11 is a sliding block; 12 is a sliding groove; 13 is a sliding groove; 14 is a sliding groove; 15 is a clamping piece; 16 is a threaded rod; 17 is a machine base; 18 is a fixed block; 19 is a guide rod; 20 is a limiting groove; 21 is a limiting block; 22 is a telescopic rod; 23 is a strip-shaped rod; 24 is a strip-shaped groove; 25 is a strip-shaped block; 26 is a glass baffle; 27 is a supporting block; 28 is a cavity; 29 is a guide pin; 30 is a circular block; 31 is a pressing rod; 32 is a spring; 33 is a threaded rod; 34 is a baffle; 35 is a clamping piece; 36 is a mounting groove. DETAILED DESCRIPTION

[0028] The following will be described in detail below Figures 1-6 The application is further described in detail.

[0029] The embodiment of the application discloses a high-pressure infusion pump assembling device convenient for maintenance. Figure 4 , Figure 5 The embodiment of the application discloses a high-pressure infusion pump assembling device convenient for maintenance. As shown in FIG. 1, the high-pressure infusion pump assembling device convenient for maintenance comprises two worms 1, two sliding blocks 11 and a machine base 17, the outer surface of each worm 1 is engaged with a worm gear 2, the inner wall of each worm gear 2 is fixedly connected with a connecting rod 3, the outer surface of each connecting rod 3 is fixedly connected with a connecting disc 4, the upper surface of each connecting disc 4 is provided with equidistantly arranged arc-shaped grooves 5, the worm gear 2 is placed at the side of the worm 1, and the worm gear 2 is connected with the worm 1, the rotation effect of the worm gear 2 can be realized by rotating the worm 1, the connecting rod 3 is connected with the worm gear 2, the rotation effect of the connecting disc 4 is realized through the connecting rod 3, the arc-shaped grooves 5 are arranged on the surface of the connecting disc 4, and the positioning effect of the arc-shaped grooves 5 is realized.

[0030] As shown in FIG. 2, Figure 1 , Figure 2 , Figure 3As shown, the upper surface of the base 17 is fixedly connected with two strip-shaped rods 23, one side of each strip-shaped rod 23 away from each other is provided with a strip-shaped slot 24, the inner wall of each strip-shaped slot 24 is slidably connected with two strip-shaped blocks 25, the upper side of the base 17 is provided with two glass baffles 26, one side of each strip-shaped block 25 away from each other is fixedly connected with the inner wall of the corresponding glass baffle 26, the strip-shaped rod 23 is installed on the upper surface of the base 17 to realize the positioning and installation effect of the strip-shaped rod 23, the positioning of the strip-shaped slot 24 is realized through the surface of the strip-shaped rod 23, the strip-shaped block 25 is installed in the corresponding strip-shaped slot 24 and is slidably connected, the limiting effect of the strip-shaped block 25 is realized through the profile of the strip-shaped slot 24, the glass baffle 26 is placed on the upper side of the base 17 and is connected with the corresponding strip-shaped block 25, the glass baffle 26 is installed to prevent the operator from touching the device by mistake during the infusion process.

[0031] As shown in Figure 1 , Figure 3 , the upper surface of the base 17 is provided with two limiting grooves 20, the inner wall of each limiting groove 20 is slidably connected with a limiting block 21, the upper surface of each limiting block 21 is fixedly connected with the bottom surface of the corresponding sliding block 11, the inner wall of the base 17 is fixedly embedded with two telescopic rods 22, the output end of each telescopic rod 22 is fixedly connected with the right side of the corresponding limiting block 21, the limiting groove 20 is provided on the upper surface of the base 17 to realize the positioning effect of the limiting groove 20, the limiting block 21 is installed in the limiting groove 20 and is slidably connected, the limiting effect of the limiting block 21 is realized through the profile of the limiting groove 20, the telescopic rod 22 is installed on the inner wall of the base 17 to realize the positioning and installation effect of the telescopic rod 22, according to the actual use, the model of the telescopic rod 22 can be replaced, the telescopic rod 22 is connected with the corresponding limiting block 21, and the movement effect of the limiting block 21 is realized through the telescopic movement of the telescopic rod 22.

[0032] As shown in Figure 1 , Figure 2 , Figure 3 , the upper surface of the base 17 is fixedly connected with two fixed blocks 18 and two supporting blocks 27, the right side of each fixed block 18 is fixedly connected with two guide rods 19, the outer surface of each guide rod 19 is slidably connected with the inner wall of the corresponding sliding block 11, the fixed block 18 and the supporting block 27 are connected with the base 17 to realize the supporting and positioning installation effect of the fixed block 18 and the supporting block 27, the guide rod 19 is connected with the fixed block 18, and the sliding block 11 is connected with the guide rod 19 to realize the limiting effect of the sliding block 11.

[0033] As shown in Figure 6As shown, the inner wall of each support block 27 is threadedly connected with a threaded rod two 33, the outer surface of each threaded rod two 33 is fixedly connected with a baffle 34, the threaded rod two 33 is installed on the inner wall of the support block 27, is provided as a threaded connection, and the baffle 34 is installed on the surface of the threaded rod two 33, by lifting the threaded rod two 33, the baffle 34 can be lifted, and then the clamping piece two 35 can be locked.

[0034] As shown in the figure, the left side of each support block 27 is provided with a clamping piece two 35, the upper surface of each support block 27 is provided with two installation grooves 36, the inner wall of each installation groove 36 is slidably connected with the outer surface of the corresponding clamping piece two 35, the clamping piece two 35 is placed on the left side of the support block 27, the installation groove 36 is provided on the upper surface of the support block 27, and the sliding connection between the installation groove 36 and the clamping piece two 35 achieves the limiting effect of the clamping piece two 35. Figure 6

[0035] As shown in the figure, Figure 1 , Figure 2 , Figure 3 The left side of each support block 27 is fixedly connected with the right end of the corresponding guide rod 19, the upper surface of each support block 27 is provided with a cavity 28, and the inner wall of each cavity 28 is slidably connected with a circular block 30. The guide rod 19 is connected with the left side of the support block 27 to support the right end of the guide rod 19, the cavity 28 is positioned by the support block 27, the circular block 30 is installed in the corresponding cavity 28, and the sliding connection is provided, and the limiting effect of the circular block 30 is realized by the contour of the cavity 28.

[0036] As shown in the figure, Figure 6 The inner top wall of each cavity 28 is fixedly connected with a spring 32, and the bottom end of each spring 32 is in contact with the upper surface of the corresponding circular block 30. The spring 32 is installed on the inner top wall of the corresponding cavity 28 to realize the positioning and installation effect of the spring 32. The bottom end of the spring 32 is in contact with the upper surface of the corresponding circular block 30, which facilitates the jacking of the circular block 30 and prevents the guide pin 29 from rotating.

[0037] As shown in the figure, Figure 3 , Figure 6 ​​​​As shown, the upper surface of each circular block 30 is fixedly connected with a guide pin 29, the outer surface of each guide pin 29 is in sliding connection with the inner wall of the corresponding support block 27, and the outer surface of each guide pin 29 is fixedly connected with a pressing rod 31. The guide pin 29 is installed on the upper surface of the corresponding circular block 30 to realize the positioning and installation effect of the guide pin 29. The support block 27 is connected with the corresponding guide pin 29 to realize the limiting effect of the guide pin 29, thereby realizing the secondary limiting effect of the circular block 30. The pressing rod 31 is installed on the surface of the corresponding guide pin 29 and is fixedly connected. The lifting and rotating effect of the pressing rod 31 can be realized through the guide pin 29.

[0038] As shown in Figure 4 , Figure 5 , the inner wall of each sliding block 11 is in rotary connection with the outer surface of the corresponding worm 1, and the inner wall of each sliding block 11 is in rotary connection with the top end and the bottom end of the corresponding connecting rod 3. The worm 1 is connected with the sliding block 11 to realize the limiting effect of the worm 1. The connecting rod 3 is in rotary connection with the inner wall of the sliding block 11 to realize the limiting effect of the connecting rod 3.

[0039] As shown in Figure 4 , Figure 5 , the upper surface of each sliding block 11 is provided with two sliding grooves 12, and the inner wall of each sliding groove 12 is in sliding connection with a clamping piece 9. The upper surface of each clamping piece 9 is fixedly connected with a limiting rod 10. The sliding groove 12 is provided on the upper surface of the sliding block 11 to realize the positioning effect of the sliding groove 12. The clamping piece 9 is connected with the corresponding sliding groove 12. The limiting effect of the clamping piece 9 can be realized through the profile of the sliding groove 12. The surface of the clamping piece 9 is provided with a groove matched with the clamping block 8, which facilitates the limiting of the clamping piece 9.

[0040] As shown in Figure 4 , Figure 5 , each sliding block 11 is provided with a threaded rod one 16, and the outer surface of each threaded rod one 16 is in threaded connection with a clamping piece one 15. The inner wall of each clamping piece one 15 is in sliding contact with the outer surface of the corresponding limiting rod 10. The threaded rod one 16 is placed on the left side of the sliding block 11, and the clamping piece one 15 is installed on the surface of the threaded rod one 16 and is in threaded connection. The clamping piece one 15 can be locked by rotating the threaded rod one 16. The clamping piece one 15 is in contact with the corresponding limiting rod 10, and the limiting effect of the clamping piece one 15 can be realized through the limiting rod 10.

[0041] As shown in Figure 4 , Figure 5As shown, the inner wall of each arc-shaped groove 5 is slidingly connected with a connecting rod 6, the outer surface of each connecting rod 6 is rotatably connected with a sliding block one 7, and the mutually close side of each sliding block one 7 is fixedly connected with a clamping block 8. The connecting rod 6 is installed on the inner wall of the arc-shaped groove 5 and is slidingly connected. Through the rotation of the connecting disc 4, the movement effect of the connecting rod 6 in the arc-shaped groove 5 is realized. The sliding block one 7 is installed on the surface of the connecting rod 6, and the movement effect of the sliding block one 7 is realized. The clamping block 8 is connected with the corresponding sliding block one 7. Through the movement of the sliding block one 7, the movement of the clamping block 8 is realized.

[0042] As shown in Figure 4 , Figure 5 The inner part of each sliding block 11 is provided with two sliding grooves one 13 and two sliding grooves two 14. The inner wall of each sliding groove one 13 is slidingly connected with the outer surface of the corresponding sliding block one 7, and the inner wall of each sliding groove two 14 is slidingly connected with the outer surface of the corresponding connecting rod 6. The sliding groove one 13 and the sliding groove two 14 are provided in the inner part of the sliding block 11, and the limiting effect of the sliding groove one 13 and the sliding groove two 14 is realized. The sliding block one 7 is connected with the sliding groove one 13, and the limiting effect of the sliding block one 7 is realized through the contour of the sliding groove one 13. The sliding groove two 14 is connected with the corresponding connecting rod 6, and the limiting effect of the connecting rod 6 is realized through the contour of the sliding groove two 14.

[0043] The implementation principle of the high-pressure infusion pump assembly device for convenient maintenance is as follows: the injection tube is placed above the supporting block 27, the pressure rod 31 is driven to press the injection tube by pulling and rotating the guide pin 29, the tube neck of the injection tube is clamped by the clamping part two 35 and the threaded rod two 33, the clamping block 8 is placed corresponding to the clamping part 9 by moving the limiting rod 10, the worm 1 is rotated to drive the worm gear 2 to rotate, the connecting disc 4 is rotated by the worm gear 2, the connecting rod 3 and the connecting disc 4, the connecting disc 4, the arc-shaped groove 5 and the connecting rod 6 are used to realize the relative movement of the connecting rod 6, the corresponding sliding block one 7 is moved, the corresponding clamping block 8 is connected with the corresponding clamping part 9 by the sliding block one 7, and the clamping part 9 is removed by reversing the worm 1, thereby realizing the quick installation and disassembly effect of the clamping part one 15, and limiting the clamping part one 15. The piston end of the injection tube is clamped by the clamping part one 15 and the threaded rod one 16, and vice versa, so that the clamping part one 15 can be disassembled, replaced and maintained.

[0044] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made on the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A high-pressure infusion pump assembly device facilitating maintenance, comprising two worm gears (1), two sliders (11) and a base (17), characterized in that: The outer surface of each worm (1) is engaged with a worm gear (2), the inner wall of each worm gear (2) is fixedly connected with a connecting rod (3), the outer surface of each connecting rod (3) is fixedly connected with a connecting disc (4), the upper surface of each connecting disc (4) is provided with equidistantly arranged arc-shaped grooves (5), the inner wall of each arc-shaped groove (5) is slidably connected with a connecting rod (6), the outer surface of each connecting rod (6) is rotatably connected with a sliding block (7), the mutually approaching side of each sliding block (7) is fixedly connected with a clamping block (8), the upper surface of each sliding block (11) is provided with two sliding grooves (12), the inner wall of each sliding groove (12) is slidably connected with a clamping piece (9), the upper surface of each clamping piece (9) is fixedly connected with a limiting rod (10), the upper surface of the machine base (17) is fixedly connected with two strip-shaped rods (23), the mutually faraway side of each strip-shaped rod (23) is provided with a strip-shaped groove (24), the inner wall of each strip-shaped groove (24) is slidably connected with two strip-shaped blocks (25), the upper side of the machine base (17) is provided with two glass baffles (26), and the mutually faraway side of each strip-shaped block (25) is fixedly connected with the inner wall of the corresponding glass baffle (26).

2. The high pressure infusion pump assembly of claim 1, wherein: The inner wall of each sliding block (11) is rotatably connected with the outer surface of the corresponding worm (1), the inner wall of each sliding block (11) is rotatably connected with the top end and the bottom end of the corresponding connecting rod (3), the inside of each sliding block (11) is provided with two sliding grooves (13) and two sliding grooves (14), the inner wall of each sliding groove (13) is slidably connected with the outer surface of the corresponding sliding block (7), and the inner wall of each sliding groove (14) is slidably connected with the outer surface of the corresponding connecting rod (6).

3. The high pressure infusion pump assembly of claim 1, wherein: The left side of each sliding block (11) is provided with a threaded rod (16), the outer surface of each threaded rod (16) is threadedly connected with a clamping piece (15), and the inner wall of each clamping piece (15) is in sliding contact with the outer surface of the corresponding limiting rod (10).

4. The high pressure infusion pump assembly of claim 1, wherein: The upper surface of the machine base (17) is fixedly connected with two fixed blocks (18) and two supporting blocks (27), the right side of each fixed block (18) is fixedly connected with two guide rods (19), and the outer surface of each guide rod (19) is slidably connected with the inner wall of the corresponding sliding block (11).

5. The high pressure infusion pump assembly of claim 1, wherein: The upper surface of the machine base (17) is provided with two limiting grooves (20), the inner wall of each limiting groove (20) is slidably connected with a limiting block (21), the upper surface of each limiting block (21) is fixedly connected with the bottom surface of the corresponding sliding block (11), and the inner wall of the machine base (17) is fixedly embedded with two telescopic rods (22), and the output end of each telescopic rod (22) is fixedly connected with the right side of the corresponding limiting block (21).

6. The high pressure infusion pump assembly of claim 4, wherein: The left side of each support block (27) is fixedly connected with the right end of the corresponding guide rod (19), the upper surface of each support block (27) is provided with a cavity (28), and the inner wall of each cavity (28) is slidably connected with a circular block (30).

7. The high pressure infusion pump assembly of claim 6, wherein: The upper surface of each circular block (30) is fixedly connected with a guide pin (29), the outer surface of each guide pin (29) is slidably connected with the inner wall of the corresponding support block (27), and the outer surface of each guide pin (29) is fixedly connected with a pressing rod (31).

8. The high pressure infusion pump assembly of claim 6, wherein: The inner top wall of each cavity (28) is fixedly connected with a spring (32), and the bottom end of each spring (32) is in contact with the upper surface of the corresponding circular block (30).

9. The high pressure infusion pump assembly of claim 4, wherein: The left side of each support block (27) is provided with a clamping piece two (35), the upper surface of each support block (27) is provided with two mounting grooves (36), and the inner wall of each mounting groove (36) is slidably connected with the outer surface of the corresponding clamping piece two (35).

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