Pump stand and locking device for infusion workstation

Abstract

This utility model belongs to the technical field of medical equipment, and particularly relates to a pump frame and locking device for an infusion workstation. It includes: a pump frame body and a locking device. The pump frame body includes a pump frame back plate, a pump frame support plate, a pump frame cavity plate, and a pump frame upper plate. One end of the pump frame cavity plate is connected to the pump frame back plate, and the other end is connected to the pump frame upper plate, forming a cavity. The locking device is installed within the cavity and includes an unlocking button assembly, a locking assembly, a locking block assembly, and a rotating push block. By pressing the unlocking button assembly, the rotating push block can move the locking assembly, thereby quickly unlocking and disassembling the pump body mounted on the pump frame body. This locking device utilizes the lever principle and an elastic element that can store elastic potential energy, achieving the effect of saving time and effort for medical personnel during the use of the infusion workstation, and reducing production assembly difficulty and maintenance costs.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a pump frame and a locking device of an infusion workstation. Background Art

[0002] Infusion workstations are usually used to load and control multiple devices (such as syringe pumps, infusion pumps, etc.) at the same time. Since infusion workstations have the characteristics of information aggregation, collaborative control, and portable transfer, they are increasingly widely used in hospitals, and medical staff have higher requirements for the convenience and stability of infusion workstations. In existing infusion workstations, when loading infusion pumps, on the one hand, medical staff need to use greater force to unlock the pump body, and the locking device needs to be manually reset after unlocking, which makes loading and unloading inconvenient. On the other hand, the locking device has more parts, and the cost of production, assembly and maintenance is high. For this reason, the utility model proposes a new solution. Utility Model Content

[0003] The purpose of the utility model is to provide a pump stand and a locking device for an infusion workstation, which adopts the lever principle and a structural design in which an elastic element can store elastic potential energy, so that the locking component is changed from a complicated structure to a structure in which the locking component can be released and unlocked by pressing an unlocking button component and pushing a rotating push block, and the locking device can be automatically reset by releasing the unlocking button component, thereby optimizing the structure of the pump stand, making the pump body stably and reliably installed on the pump stand, and more convenient and quick to disassemble, thereby achieving the effect of saving time and effort for medical staff in the process of using the infusion workstation and reducing the difficulty of production and assembly and maintenance costs.

[0004] Based on this, the utility model provides a pump stand and a locking device for an infusion workstation, comprising:

[0005] A pump frame body, wherein the pump frame body is provided with a pump frame cavity plate and a pump frame back plate, the pump frame cavity plate and the pump frame back plate are arranged to form a cavity, and the pump frame cavity plate is provided with a pump body mounting platform;

[0006] A locking device, wherein the locking device is provided with an unlocking button assembly, a locking assembly, a block assembly, and a rotating push block, wherein the unlocking button assembly is connected to one end of the rotating push block, the locking assembly is arranged on both sides of the rotating push block, and the block assembly can limit the displacement of the unlocking button assembly;

[0007] The locking device is installed in cavity one, the block assembly is connected to the pump frame cavity plate, and the locking assembly is installed on the pump body mounting platform to lock the pump body. By pressing the unlocking button assembly, the rotating push block can drive the locking assembly to move, thereby quickly unlocking and disassembling the pump body installed on the pump body mounting platform.

[0008] As described above, a pump stand and locking device of an infusion workstation, the locking assembly includes a locking card block, an elastic reset support block, and an elastic element 1. The elastic reset support block is fixedly connected to the pump stand cavity plate, and the elastic reset support block is installed on the locking card block. The elastic element 1 connects the elastic reset support block and the locking card block to store elastic potential energy for reset.

[0009] In the pump stand and locking device of an infusion workstation as described above, the elastic reset support block is provided with a countersunk hole, a limiting protrusion, and a clamping column. The countersunk hole is used to connect the pump stand cavity plate, the clamping column is connected to one end of the elastic element, and the limiting protrusion can be installed on the locking block for limiting.

[0010] As described above, a pump stand and locking device of an infusion workstation, the locking block is provided with a lock buckle, a reset groove 1, a slot hole 1, a slot hole 2, a clamping column 2, and an open groove, the lock buckle can be used to lock the pump body, the elastic reset support block is installed in the reset groove 1, the limiting protrusion 1 is clamped in the slot hole 1, the elastic reset support block is connected to the pump stand cavity plate through the slot hole 2, the rotating push block and the locking block are connected to the open groove, and the other end of the elastic element 1 is connected to the clamping column 2, so that the elastic reset support block can store elastic potential energy when squeezed.

[0011] As described above, a pump stand and locking device of an infusion workstation, the rotating push block is provided with a cylinder, boss one, boss two, and a rotating support platform, one end of the cylinder is connected to the unlocking button assembly, and the other end is against the pump stand cavity plate, the boss one and the boss two are arranged on the rotating support platform, and the rotating support platform is installed in the opening groove, and the rotating push block can rotate around the cylinder so that the boss one and the boss two push the locking block to move relative to both sides, so that the locking device is in an unlocked state.

[0012] As described above, a pump stand and locking device of an infusion workstation, the unlocking button assembly includes an unlocking button, an unlocking button fixing frame, and an unlocking mechanism push block, bosses are provided on both sides of the unlocking button to enable the unlocking button to be snapped into the unlocking button fixing frame, the unlocking button fixing frame can fix the unlocking button assembly to the pump stand body, the unlocking mechanism push block includes an unlocking mechanism push block body, elastic element 2, and an unlocking reset block, which can enable the unlocking mechanism push block to store elastic potential energy so as to achieve automatic reset after release.

[0013] As described above, a pump stand and locking device of an infusion workstation, the block assembly includes a block support plate, an elastic element three, and a top block, the top block is connected to the block support plate via the elastic element three, the block support plate is connected to the pump stand back plate, and one end of the top block can be connected to the pump stand cavity plate to support the pump body installed on the pump stand body.

[0014] As described above, a pump stand and locking device of an infusion workstation, the pump stand body also includes a pump stand support plate group and a pump stand upper plate, the pump stand support plate group includes a first pump stand support plate and a second pump stand support plate placed opposite to each other, the first pump stand support plate and the second pump stand support plate are respectively connected to both sides of the pump stand cavity plate, the pump stand upper plate is provided with a second slide groove, the second slide groove is relatively arranged on both sides of the pump stand upper plate, and the upper ends of the first pump stand support plate and the second pump stand support plate are connected to the pump stand upper plate through the slide groove.

[0015] As described above, a pump stand and locking device of an infusion workstation, the pump stand cavity plate is also provided with a locking hole, a data hole, a card block hole, and a slide groove; the locking hole is provided on the pump body mounting platform and the locking buckle can move left and right in the locking hole, the top block can move forward and backward in the card block hole, the data hole can be used for the installation of a data transmission module, and the pump stand back plate is connected to the pump stand cavity plate via the slide groove.

[0016] As described above, a pump stand and locking device of an infusion workstation, the pump stand back plate is provided with a pump stand fixing clamp, two connecting columns, a fixing slot one and a fixing slot two, the pump stand cavity plate is connected to the pump stand back plate via the slide slot one and the fixing slot two, and the pump stand back plate is further connected to the pump stand cavity plate via the fixing slot one and the slide slot two.

[0017] Implementing the embodiments of the utility model has the following beneficial effects:

[0018] 1. This scheme adopts a structural design based on the lever principle, so that the locking component is changed from a complicated structure to one in which the locking component can be released and unlocked by pressing the unlocking button component and pushing the rotating push block, thereby optimizing the pump frame structure, making the pump body stable and reliable when installed on the pump frame, and more convenient and quick when disassembling, so as to achieve the effect of saving medical staff time and effort in the process of using the infusion workstation and reducing the difficulty of production and assembly and maintenance costs.

[0019] 2. This solution uses a structural design in which an elastic element can store elastic potential energy, so that the locking device can store elastic potential energy when the unlocking button assembly is pressed. After releasing the unlocking button assembly, the stored elastic potential energy can be used to achieve rapid automatic reset, thereby solving the technical problem that the locking device cannot be automatically reset after unlocking and needs to be manually reset, thereby saving medical staff time and effort in the process of using the infusion workstation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments 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 these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0022] Figure 2 For the corresponding Figure 1 A structural diagram from another perspective;

[0023] Figure 3 It is a structural explosion diagram of an embodiment of the utility model;

[0024] Figure 4 For the corresponding Figure 3 Another perspective of the structural explosion diagram;

[0025] Figure 5 This is a schematic diagram of the structure of the locking device of an embodiment of the utility model;

[0026] Figure 6 This is an exploded view of the structure of the locking device of the embodiment of the utility model;

[0027] Figure 7 For the corresponding Figure 6 An exploded view of the structure from another perspective. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figures 1 to 7 As shown, the embodiment of the utility model provides a pump stand and a locking device for an infusion workstation, comprising:

[0030] A pump frame body 1, wherein the pump frame body 1 is provided with a pump frame cavity plate 13 and a pump frame back plate 11, wherein the pump frame cavity plate 13 and the pump frame back plate 11 are arranged to form a cavity 15, and the pump frame cavity plate 13 is provided with a pump body mounting platform 131; a locking device 2, wherein the locking device 2 is provided with an unlocking button assembly 21, a locking assembly 22, a block assembly 23, and a rotating push block 24, wherein the unlocking button assembly 21 is connected to one end of the rotating push block 24, and the locking assembly 22 is arranged on both sides of the rotating push block 24, and the block assembly 23 can limit the displacement of the unlocking button assembly 21; the locking device 2 is installed in the cavity 15, the block assembly 23 is connected to the pump frame cavity plate 13, and the locking assembly 22 is installed on the pump body mounting platform 131 to lock the pump body, and by pressing the unlocking button assembly 21, the rotating push block 24 can drive the locking assembly 22 to move, thereby quickly unlocking and disassembling the pump body installed on the pump body mounting platform 131.

[0031] Specifically, the locking assembly 22 includes a locking block 221, an elastic reset support block 222, and an elastic element 223. The elastic reset support block 222 is fixedly connected to the pump frame cavity plate 13, and the elastic reset support block 222 is installed on the locking block 221. The elastic element 223 connects the elastic reset support block 222 and the locking block 221. Such a design allows the elastic element 223 to store elastic potential energy for realizing automatic reset of the locking assembly 22.

[0032] Furthermore, the elastic reset support block 222 is provided with a countersunk hole 2221, a limiting protrusion 2222, and a clamping column 2223. The countersunk hole 2221 is used to connect the pump frame cavity plate 13, the clamping column 2223 is connected to one end of the elastic element 223, and the limiting protrusion 2222 can be installed on the locking block 221 for limiting. Such a design enables the elastic reset support block 222 to be fixed to the pump frame cavity plate 13, so that the elastic reset support block 222 can squeeze the elastic element 223 to store elastic potential energy. The limiting protrusion 2222 can limit the maximum displacement of the elastic reset support block 222, thereby preventing the elastic element 223 from being damaged due to excessive force.

[0033] Furthermore, the locking block 221 is provided with a lock buckle 2211, a reset groove 2212, a slot hole 1 2213, a slot hole 2214, a clamping column 2215, and an opening groove 2216. The lock buckle 2211 can be used to clamp the pump body. The elastic reset support block 222 is installed in the reset groove 2212, the limiting protrusion 1 2222 is clamped in the slot hole 1 2213, the elastic reset support block 222 is connected to the pump frame cavity plate 13 through the slot hole 2214, the rotating push block 24 and the locking block 221 are connected to the opening groove 2216, and the other end of the elastic element 1 223 is connected to the clamping column 2215. Such a design can store elastic potential energy when the elastic reset support block 222 is squeezed so that releasing the unlocking button assembly 21 can push the locking block 221 to automatically reset.

[0034] Furthermore, the rotating push block 24 is provided with a cylinder 241, a boss 1 242, a boss 243, and a rotating support platform 244. One end of the cylinder 241 is connected to the unlocking button assembly 21, and the other end is abutted against the pump frame cavity plate 13. The boss 1 242 and the boss 2 243 are provided on the rotating support platform 244, and the rotating support platform 244 is installed in the opening groove 2216. The rotating push block 24 rotates around the cylinder 241 to enable the boss 1 242 and the boss 2 243 to push the locking block 221 to move to both sides. Such a design can ensure the stability of the locking device 2 when it is in the unlocking state and the convenience, labor saving and rapid automatic resetting when unlocking.

[0035] Further, the unlocking button assembly 21 includes an unlocking button 211, an unlocking button fixing frame 212, and an unlocking mechanism push block 213. The unlocking button 211 is provided with a third boss 2111 on both sides to enable the unlocking button 211 to be inserted into the unlocking button fixing frame 212. The unlocking button fixing frame 212 can fix the unlocking button assembly 21 to the pump frame body 1. The unlocking mechanism push block 213 includes an unlocking mechanism push block body 2131, an elastic element 2132, and an unlocking reset block 2133.

[0036] The unlocking and resetting block 2133 is provided with a second countersunk hole 21331, a second limiting protrusion 21332, and a third clamping column 21333;

[0037] The unlocking mechanism push block body 213 is provided with a boss 4 21311, a reset groove 21312, a slot 3 21313, a slot 4 21314, an elliptical hole 21315, and a clamping column 4 21316. The unlocking button 211 can be connected to the unlocking mechanism push block 213 and abut against the boss 4 2131. The unlocking reset block 2133 is installed in the reset groove 21312. The limiting boss 21332 is clamped in the slot 3 21313. Inside, the pump frame cavity plate 13 and the unlocking reset block 2133 are connected to the countersunk hole 21331 through the slot hole 4 21314, the cylinder 241 and the unlocking mechanism push block body 2131 are connected to the elliptical hole 21315, one end of the elastic element 2132 is connected to the clamping column 3 21333, and the other end is fixed to the clamping column 4 21316. Such a design can realize automatic reset of the unlocking button assembly 21 after being released.

[0038] Further, the card block assembly 23 includes a card block support plate 231, an elastic element three 232, and a top block 233, and the top block 233 is connected to the card block support plate 231 through the elastic element three 232;

[0039] The block support plate 231 is provided with a limit card end 2311, a card column five 2312, and a connecting column one 2313. The top block 233 is provided with a fixed boss 2331 and a groove one 2332. The limit card end 2311 can limit the maximum displacement of the unlocking button assembly 21. The elastic element three 232 fixes the top block 233 to the block support plate 231 by connecting to the groove one 2332 and the card column five 2312. The block support plate 231 is fixedly connected to the pump frame back plate 11 through the connecting column one 2313. The protruding end 2331 is movably connected to the pump frame cavity plate 13 so as to support the pump body installed on the pump frame body 1.

[0040] Furthermore, the pump frame body 1 also includes a pump frame support plate group 12 and a pump frame upper plate 14, the pump frame support plate group 12 includes a first pump frame support plate 121 and a second pump frame support plate 122 placed opposite to each other, the first pump frame support plate 121 and the second pump frame support plate 122 are respectively connected to both sides of the pump frame cavity plate 13, the pump frame upper plate 14 is provided with a second slide groove 141, and the second slide groove 141 is relatively arranged on both sides of the pump frame upper plate 14;

[0041] The first pump frame support plate 121 is provided with a fixing frame hole 1211, a second groove 1212, a pipe fixing clamp 1213, and a card slot 1214. The unlocking button fixing frame 212 can be detachably mounted on the fixing frame hole 1211. The pipe fixing clamp 1213 is connected to the side of the second groove 1212 to facilitate clamping the connecting pipe. Such a design facilitates the unlocking button assembly 21 not to shake when pressed, thereby ensuring the stability of the locking device 2 during use. At the same time, the pipe fixing clamp 1213 clamps the connecting pipe on the pump body to prevent the connecting pipe from being placed too messily and affecting use.

[0042] The second pump frame support plate 122 is provided with a groove 4 1221, a clamping groove 2 1222, and a pipe fixing clamp 2 1223. The pipe fixing clamp 1223 is connected to the side of the groove 4 1221 to facilitate clamping the connecting pipe. Such a design enables the pipe fixing clamp 1223 to clamp the connecting pipe on the pump body to prevent the connecting pipe from being placed too messily and affecting the use.

[0043] The first pump frame support plate 121 and the second pump frame support plate 122 are connected to the second slide groove 141 on both sides of the pump frame upper plate 14 through the first clamping groove 1214 and the second clamping groove 1222 respectively.

[0044] Furthermore, the pump frame cavity plate 13 is also provided with a locking hole 1311, a data hole 132, a block hole 133, and a slide groove 134. The locking hole 1311 is arranged on the pump body mounting platform 131 and the locking buckle 2211 can move left and right in the locking hole 1311, and the top block 233 can move forward and backward in the block hole 133. The data hole 132 can be used for the installation of the data transmission module, and the pump frame back plate 11 is connected to the pump frame cavity plate 13 through the slide groove 134. Such a design can make the pump body better installed in the pump frame cavity plate 13 and ensure the stability of the connection and the convenience and speed of disassembly.

[0045] Furthermore, the pump frame back plate 11 is provided with a pump frame fixing clamp 111, a connecting column 112, a fixing slot 113, and a fixing slot 2 114. The pump frame cavity plate 13 is connected to the pump frame back plate 11 through the slide slot 134 and the fixing slot 2 114. The pump frame back plate 11 is further connected to the pump frame cavity plate 13 through the fixing slot 113 and the slide slot 2 141. The connecting column 112 is arranged at three points along the same straight line, so that the locking device 2 can be further stabilized by the connecting column 112. Such a design can make the connection between the components of the pump frame body 1 stable and reliable, and make the installation and disassembly of production more convenient and quick.

[0046] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information. In addition, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A pump stand and locking device for an infusion workstation, characterized in that: include: A pump frame body (1), the pump frame body (1) being provided with a pump frame cavity plate (13) and a pump frame back plate (11), the pump frame cavity plate (13) and the pump frame back plate (11) enclosing a cavity (15), and the pump frame cavity plate (13) being provided with a pump body mounting platform (131); A locking device (2), the locking device (2) being provided with an unlocking button assembly (21), a locking assembly (22), a block assembly (23), and a rotating push block (24), the unlocking button assembly (21) being connected to one end of the rotating push block (24), the locking assembly (22) being provided on both sides of the rotating push block (24), and the block assembly (23) being capable of limiting the displacement of the unlocking button assembly (21); The locking device (2) is installed in cavity one (15), the block assembly (23) is connected to the pump frame cavity plate (13), and the locking assembly (22) is installed on the pump body mounting platform (131) to lock the pump body. By pressing the unlocking button assembly (21), the rotating push block (24) can drive the locking assembly (22) to move, thereby quickly unlocking and disassembling the pump body installed on the pump body mounting platform (131).

2. A pump stand and locking device for an infusion workstation according to claim 1, characterized in that: The locking assembly (22) comprises a locking block (221), an elastic reset support block (222), and an elastic element 1 (223); the elastic reset support block (222) is fixedly connected to the pump frame cavity plate (13), and the elastic reset support block (222) is installed on the locking block (221); the elastic element 1 (223) connects the elastic reset support block (222) and the locking block (221) to store elastic potential energy for reset.

3. A pump stand and locking device for an infusion workstation according to claim 2, characterized in that: The elastic reset support block (222) is provided with a countersunk hole (2221), a limiting protrusion (2222), and a clamping column (2223); the countersunk hole (2221) is used to connect the pump frame cavity plate (13); the clamping column (2223) is connected to one end of the elastic element (223); and the limiting protrusion (2222) can be installed on the locking block (221) for limiting.

4. A pump stand and locking device for an infusion workstation according to claim 3, characterized in that: The locking block (221) is provided with a lock buckle (2211), a reset groove (2212), a slot hole (2213), a slot hole (2214), a clamping column (2215), and an opening groove (2216); the lock buckle (2211) can be used to lock the pump body; the elastic reset support block (222) is installed in the reset groove (2212); the limiting protrusion (2222) is clamped in the slot hole (2213); the elastic reset support block (222) is connected to the pump frame cavity plate (13) through the slot hole (2214); the rotating push block (24) and the locking block (221) are connected to the opening groove (2216); the other end of the elastic element (223) is connected to the clamping column (2215), so that the elastic reset support block (222) can store elastic potential energy when squeezed.

5. A pump stand and locking device for an infusion workstation according to claim 4, characterized in that: The rotating push block (24) is provided with a cylinder (241), a boss 1 (242), a boss 2 (243), and a rotating support platform (244); one end of the cylinder (241) is connected to the unlocking button assembly (21), and the other end is abutted against the pump frame cavity plate (13); the boss 1 (242) and the boss 2 (243) are provided on the rotating support platform (244); the rotating support platform (244) is installed in the opening groove (2216); the rotating push block (24) rotates around the cylinder (241) so that the boss 1 (242) and the boss 2 (243) push the locking block (221) to move relative to both sides, so that the locking device (2) is in an unlocked state.

6. A pump stand and locking device for an infusion workstation according to claim 1, characterized in that: The unlocking button assembly (21) comprises an unlocking button (211), an unlocking button fixing frame (212), and an unlocking mechanism push block (213). Two sides of the unlocking button (211) are provided with a third boss (2111) to enable the unlocking button (211) to be inserted into the unlocking button fixing frame (212). The unlocking button fixing frame (212) can fix the unlocking button assembly (21) to the pump frame body (1). The unlocking mechanism push block (213) comprises an unlocking mechanism push block body (2131), a second elastic element (2132), and an unlocking reset block (2133). The unlocking mechanism push block (213) can store elastic potential energy so as to achieve automatic reset after being released.

7. A pump stand and locking device for an infusion workstation according to claim 4, characterized in that: The block assembly (23) comprises a block support plate (231), a third elastic element (232), and a top block (233); the top block (233) is connected to the block support plate (231) via the third elastic element (232); the block support plate (231) is connected to the pump frame back plate (11); one end of the top block (233) can be connected to the pump frame cavity plate (13) so as to support a pump body mounted on the pump frame body (1).

8. A pump stand and locking device for an infusion workstation according to claim 7, characterized in that: The pump frame body (1) also includes a pump frame support plate group (12) and a pump frame upper plate (14). The pump frame support plate group (12) includes a first pump frame support plate (121) and a second pump frame support plate (122) which are arranged opposite to each other. The first pump frame support plate (121) and the second pump frame support plate (122) are respectively connected to two sides of the pump frame cavity plate (13). The pump frame upper plate (14) is provided with a second slide groove (141). The second slide groove (141) is relatively arranged on two sides of the pump frame upper plate (14), and the upper ends of the first pump frame support plate (121) and the second pump frame support plate (122) are connected to the pump frame upper plate (14) through the second slide groove (141).

9. A pump stand and locking device for an infusion workstation according to claim 8, characterized in that: The pump frame cavity plate (13) is also provided with a locking hole (1311), a data hole (132), a block hole (133), and a slide groove (134); the locking hole (1311) is provided on the pump body mounting platform (131) and the locking buckle (2211) can move left and right in the locking hole (1311); the top block (233) can move forward and backward in the block hole (133); the data hole (132) can be used for installing a data transmission module; the pump frame back plate (11) is connected to the pump frame cavity plate (13) via the slide groove (134).

10. A pump stand and locking device for an infusion workstation according to claim 9, characterized in that: The pump frame back plate (11) is provided with a pump frame fixing clamp (111), a second connecting column (112), a first fixing slot (113), and a second fixing slot (114); the pump frame cavity plate (13) is connected to the pump frame back plate (11) via the first slide slot (134) and the second fixing slot (114); the pump frame back plate (11) is further connected to the pump frame cavity plate (13) via the first fixing slot (113) and the second slide slot (141).

Images