Medical pressure pump convenient to insert and pull

By designing the connection assembly and reinforced seal assembly of medical pressure pumps that are easy to plug and unplug, the problem of loose and fall of pipe fittings is solved, and the stable connection and sealing is achieved, which improves operating efficiency and ease of use.

CN120532015AActive Publication Date: 2025-08-26LEPU MEDICAL TECH (BEIJING) CO LTD
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Patent Information

Application Number
CN202511044027.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-28
Publication Date
2025-08-26
Estimated Expiration
2045-07-28

AI Technical Summary

Technical Problem

During the use of existing medical pressure pumps, pipe fittings are prone to loosening and falling due to failure to install as required or aging and wear, which affects normal use.

Method used

A medical pressure pump is designed for easy insertion and removal. Through the cooperation of slides, slots and blocks in the connecting assembly, the stable connection between the fixed pipe and the connecting pipe is achieved, and the stability and sealing of the connection are ensured by the reinforcement and sealing assembly.

Benefits of technology

It significantly improves the operating efficiency, ensures that the fixed pipe and the connecting pipe are not easy to loosen during use, and improves the convenience of use and sealing effect.

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Abstract

The invention discloses a medical pressure pump convenient to insert and pull, and relates to the technical field of medical pressure pumps. Comprising a pump body, the bottom end of the pump body is in threaded connection with a rotating handle, a pressure indicating gauge is fixedly installed on the outer wall of the top end of the pump body, the end, away from the rotating handle, of the pump body is fixedly connected with a hose, the output end of the hose is fixedly connected with a fixing pipe, and the other end of the fixing pipe is movably connected with a connecting pipe; one end of the connecting pipe is provided with a connecting assembly which enables the connecting pipe to be in butt joint with the fixing pipe, the outer wall of the fixing pipe is fixedly sleeved with a sleeve, the outer wall of the sleeve is symmetrically and fixedly connected with two sets of fixing shells, one end of each fixing shell is fixedly connected with a connecting block, and the inner wall of each connecting block is provided with a reinforcing assembly for fixing the connecting pipe. The fixing pipe and the connecting pipe are connected through the connecting assembly and are further reinforced through cooperation with the reinforcing assembly, the connecting position is prevented from loosening, the fixing effect is improved, operation is easy, and use is convenient and fast.
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Description

Technical Field

[0001] The present invention relates to the technical field of medical pressure pumps, in particular to a medical pressure pump which is easy to plug and unplug. Background Art

[0002] Currently, during clinical cardiovascular stenosis and blockage surgeries, medical balloon expansion pressure pumps are commonly used to expand or contract (decompress) the balloon of a balloon expansion catheter. The pump can fill the balloon with liquid as needed to change the balloon pressure and shape, expand the balloon, detect the pressure inside the balloon, and contract the balloon during the balloon expansion process. When in use, the medical balloon expansion pressure pump pressurizes and injects contrast agents or saline solutions into the patient's cardiovascular diseased area, allowing the CT equipment (radioscopic equipment) to clearly monitor the surgical treatment and identify the patient's diseased area. At the same time, the balloon used to expand the stent in the affected area of ​​the blood vessel is pressurized, depressurized, and evacuated under negative pressure, causing it to expand and contract (decompress) to achieve the purpose of expanding the blood vessel or releasing the stent.

[0003] In the prior art, when pipe fittings are connected to pressure pumps or other equipment, if they are not installed in accordance with the prescribed methods and steps, such as not being fully inserted, tightened or fastened, but simply put on, the pipe fittings may easily fall off if subjected to slight vibration or external force during use, and the pipe fittings' connectors, sealing rings, buckles and other components may age, wear or be damaged after long-term use. When the pressure pump generates pressure changes, the pipe fittings may gradually loosen and fall off, thereby affecting the normal use of the pressure pump. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide a medical pressure pump that is easy to plug and unplug, so as to solve the technical problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a medical pressure pump that is easy to plug and unplug, comprising a pump body, a handle being threadedly connected to the bottom end of the pump body, a pressure indicator being fixedly installed on the outer wall of the top end of the pump body, a hose being fixedly connected to the end of the pump body away from the handle, a fixed tube being fixedly connected to the output end of the hose, a connecting tube being movably connected to the other end of the fixed tube, a connecting assembly being provided at one end of the connecting tube for docking it with the fixed tube, a sleeve being fixedly sleeved on the outer wall of the fixed tube, two groups of fixed shells being symmetrically fixedly connected to the outer wall of the sleeve, a connecting block being fixedly connected to one end of the fixed shell, a reinforcing assembly being provided on the inner wall of the connecting block for fixing the connecting tube, and a sealing assembly being provided on the inner wall of the fixed shell for sealing the connection between the fixed tube and the connecting tube.

[0006] Preferably, the connecting assembly includes a mounting groove opened at one end of the connecting pipe, two groups of slide grooves are symmetrically opened on the inner wall of the mounting groove, the end of the fixed pipe away from the pressure indicator is fixedly connected to a docking pipe slidably connected to the inner wall of the mounting groove, and the outer wall of the docking pipe is symmetrically fixedly connected to two groups of sliders matching the slide grooves.

[0007] Preferably, one end of the fixed pipe is symmetrically fixedly connected with a clamping block on both sides of the butt-jointed pipe, and the end of the connecting pipe is symmetrically provided with two groups of clamping grooves corresponding to the clamping blocks.

[0008] Preferably, the pressure indicator is symmetrically fixedly connected to the outer wall of one end of the fixed tube with two groups of gas pipes, and the other end of the gas pipes is connected to the connecting block.

[0009] Preferably, the reinforcement assembly includes a fixed plate fixedly connected to the inner wall of the connecting block, a spring fixedly connected to the lower surface of the fixed plate, a plug extending to the outside of the bottom end of the connecting block fixedly connected to the bottom end of the spring, and a through hole is opened on the surface of the fixed plate.

[0010] Preferably, the inner wall of the sleeve is slidably connected to an airbag ring extending to the outer wall of the fixed tube, one end of the connecting tube is fixedly sleeved with a fixed ring, the surface of the fixed ring is provided with a sealing groove that fits with the airbag ring, and the outer wall of the fixed ring is symmetrically provided with two groups of slots that match the insertion rod.

[0011] Preferably, the outer wall of the top end of the insertion rod is fixedly connected to an L-shaped fixing rod which is slidably connected to the inner wall of the fixed shell, and the one side surface of the airbag ring is connected to a connecting ring located on the inner wall of the sleeve through a torsion spring, and the connecting ring is symmetrically fixedly connected to a fixing block on the side surface away from the airbag ring, and a slope a is provided on one side surface of the bottom end of the L-shaped fixing rod, and a slope b is provided at the contact position between the fixing block and the L-shaped fixing rod.

[0012] Preferably, a baffle is fixedly sleeved on the outer wall of the L-shaped fixing rod close to one end of the insertion rod, a slot is provided at the connection between the fixing shell and the connecting block, the L-shaped fixing rod is inserted into the inner wall of the slot, two sets of limit strips are fixedly connected to the inner wall of one end of the fixing shell, and the baffle is slidably connected to the inner wall of the limit strip.

[0013] Preferably, the outer wall of the airbag ring is located inside the sleeve and is symmetrically fixedly connected to two groups of pulleys, and the inner wall of the sleeve is fixedly connected to two groups of guides for guiding the pulleys.

[0014] Preferably, two groups of T-shaped rods are fixedly connected to the inner wall of the sleeve, T-shaped slots matching the T-shaped rods are provided on both side surfaces of the fixed block, a dovetail slot is provided on the end of the L-shaped fixed rod away from the baffle, and a dovetail block matching the dovetail slot is fixedly connected to the inner wall of the fixed shell.

[0015] In summary, the present invention mainly has the following beneficial effects: 1. The present invention cooperates with the slider, mounting slot, card slot and card block in the connecting assembly, and utilizes the displacement of the slider along the card slot to drive the card block to realize the card connection action, so as to connect the fixed pipe and the connecting pipe, greatly simplifying the assembly process and significantly improving the operation efficiency and convenience of use. After the fixed pipe and the connecting pipe are initially carded, when the pump body is in use, with the cooperation of the reinforcement assembly, the gas inside the hose is transmitted to the inside of the connecting block through the gas pipe, and the air pressure generated drives the plunger to move vertically. When the plunger is inserted into the inner wall of the slot, the fixed pipe and the connecting pipe can be fixed for a second time, preventing the fixed pipe and the connecting pipe from loosening and falling due to external force during use. The distance moved by the plunger is positively correlated with the pressure of the pump body. When the pressure is greater, the position of the plunger is embedded deeper in the slot and the stability is higher. When the pump body is used and enters the pressure relief operation, the plunger is reset under the action of the spring, and the limit on the connecting pipe is automatically released. The overall operation is relatively convenient and fast, and the fixing effect is better.

[0016] 2. When the present invention reinforces the connecting tube and the fixed tube through the fixing assembly, when the insertion rod moves axially downward, it drives the L-shaped fixing rod to move downward synchronously. During the vertical movement, the L-shaped fixing rod applies lateral extrusion force to the fixing block, causing the fixing block to move to the right, and at the same time cooperates with the connecting ring to push the airbag ring to move to the inner wall of the sealing groove on the fixing ring to seal the connection between the connecting tube and the fixed tube. During the movement of the sealing ring, the guide plate and the pulley cooperate with each other, and the connecting ring drives it to rotate when the connecting ring pushes the airbag ring to move, so that the airbag ring is tightly fitted with the inner wall of the sealing groove, reducing the gap between the airbag ring and the sealing groove, and improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of the overall structure of the fixed pipe and the connecting pipe of the present invention; Figure 3 This is a first-perspective perspective schematic diagram of the disassembled structure of the fixed pipe and the connecting pipe of the present invention; Figure 4 This is a perspective schematic diagram of the disassembled structure of the fixing pipe and the connecting pipe of the present invention from a second perspective; Figure 5 This is a schematic diagram of the top view of the connecting pipe of the present invention; Figure 6 It is a cutaway perspective schematic diagram of part of the structure of the present invention; Figure 7 This is a three-dimensional schematic diagram of the disassembled structure of the reinforcement component and the sealing component of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the connecting ring of the present invention; Figure 9 For the present invention Figure 6 Schematic diagram of the local structure at point A; Figure 10 For the present invention Figure 7 Schematic diagram of the local structure at B in the middle; Figure 11 For the present invention Figure 7 Schematic diagram of the local structure at point C in the middle; Figure 12 For the present invention Figure 7 Schematic diagram of the local structure at D in the middle; Figure 13 This is a schematic diagram of the top view of the insertion rod and the L-shaped fixing rod of the present invention.

[0018] In the figure: 1. pump body; 2. handle; 3. pressure indicator; 4. hose; 5. fixing pipe; 51. butt joint; 6. connecting pipe; 7. sleeve; 8. air pipe; 9. connecting block; 10. fixing shell; 101. slot; 102. limit strip; 111. mounting slot; 112. slide slot; 113. clamping slot; 114. clamping block; 115. slider; 121. fixing plate; 122. spring; 123. plug rod; 124. fixing ring; 125. slot; 131. L-shaped fixing rod; 132. baffle; 133. dovetail groove; 134. air bag ring; 135. connecting ring; 136. fixing block; 1361. T-slot; 137. pulley; 138. guide plate; 139. T-rod. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0020] The following describes an embodiment of the present invention based on its overall structure.

[0021] A medical pressure pump that is easy to plug and unplug, such as Figures 1-13 As shown, it comprises a pump body 1, the bottom end of the pump body 1 is threadedly connected to a handle 2, and the pump body 1 can be operated by rotating the handle 2; For example, a pressure indicator 3 is fixedly mounted on the outer wall of the top of the pump body 1 to indicate the pressure. A hose 4 is fixedly connected to the end of the pump body 1 away from the handle 2. The output end of the hose 4 is fixedly connected to a fixed tube 5. The other end of the fixed tube 5 is movably connected to a connecting tube 6. After the fixed tube 5 is connected to the connecting tube 6, the pressure inside the pump body 1 can be transmitted through the hose 4 to facilitate subsequent treatment needs. Exemplarily, one end of the connecting tube 6 is provided with a connecting component for docking it with the fixed tube 5, the outer wall of the fixed tube 5 is fixedly sleeved with a sleeve 7, the outer wall of the sleeve 7 is symmetrically fixedly connected with two groups of fixed shells 10, one end of the fixed shell 10 is fixedly connected with a connecting block 9, the inner wall of the connecting block 9 is provided with a reinforcement component for fixing the connecting tube 6, the inner wall of the fixed shell 10 is provided with a sealing component for sealing the connection between the fixed tube 5 and the connecting tube 6, the fixed tube 5 and the connecting tube 6 can be further fixed by the reinforcement component, and the connection between the two can be sealed by the sealing component.

[0022] See Figure 3-Figure 5 It can be seen that the connecting assembly includes a mounting groove 111 opened at one end of the connecting pipe 6, and two groups of slide grooves 112 are symmetrically opened on the inner wall of the mounting groove 111. The end of the fixed pipe 5 away from the pressure indicator 3 is fixedly connected to the docking pipe 51 which is slidably connected to the inner wall of the mounting groove 111. The outer wall of the docking pipe 51 is symmetrically fixed with two groups of sliders 115 matching the slide groove 112. By sliding the docking pipe 51 to the inner wall of the mounting groove 111, the slider 115 also slides to the inner wall of the slide groove 112. When the connecting pipe 6 contacts the fixed pipe 5, and since the slide groove 112 is L-shaped, the connecting pipe 6 is rotated, and the slide groove 112 can limit the slider 115, thereby facilitating the docking of the connecting pipe 6 with the fixed pipe 5.

[0023] See Figure 3-Figure 5 It can be seen that one end of the fixed tube 5 is symmetrically fixedly connected with a block 114 on both sides of the docking tube 51, and two groups of slots 113 corresponding to the blocks 114 are symmetrically opened at the end of the connecting tube 6. After rotating the connecting tube 6, the block 114 slides from the inner wall of one group of slots 113 to the inner wall of the other group of slots 113, which can assist in limiting the connecting tube 6. At this time, the slide groove 112 is just engaged with the slider 115.

[0024] See Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 、 Figure 7 It can be seen that two sets of air pipes 8 are symmetrically fixedly connected to the outer wall of the pressure indicator 3 near one end of the fixed tube 5, and the other end of the air pipe 8 is connected to the connecting block 9. The pressure can be transmitted to the inside of the connecting block 9 through the air pipe 8 for use in the reinforcement component.

[0025] As can be seen from the figure, the reinforcement component includes a fixed plate 121 fixedly connected to the inner wall of the connecting block 9, a spring 122 is fixedly connected to the lower surface of the fixed plate 121, and the bottom end of the spring 122 is fixedly connected to an insertion rod 123 extending to the outside of the bottom end of the connecting block 9, and a through hole is opened on the surface of the fixed plate 121.

[0026] As can be seen from the figure, the inner wall of the sleeve 7 is slidably connected to the airbag ring 134 extending to the outer wall of the fixed tube 5, and the fixing ring 124 is fixedly sleeved on one end of the connecting tube 6. A sealing groove that fits with the airbag ring 134 is provided on the surface of the fixing ring 124, and two groups of slots 125 that match the insertion rod 123 are symmetrically provided on the outer wall of the fixing ring 124.

[0027] See Figure 9 、 Figure 11 、 Figure 12 、 Figure 13 It can be seen that the outer wall of the top end of the insertion rod 123 is fixedly connected to an L-shaped fixing rod 131 that is slidably connected to the inner wall of the fixed shell 10. When the insertion rod 123 moves, it can drive the L-shaped fixing rod 131 to move at the same time; Illustratively, one side surface of the airbag ring 134 is connected to a connecting ring 135 located on the inner wall of the sleeve 7 through a torsion spring, and the connecting ring 135 is symmetrically fixedly connected to a fixing block 136 on the side surface away from the airbag ring 134. A slope a is provided on one side surface of the bottom end of the L-shaped fixing rod 131, and a slope b is provided at the contact position between the fixing block 136 and the L-shaped fixing rod 131. During the movement of the L-shaped fixing rod 131, the L-shaped fixing rod 131 squeezes the fixing block 136 through the setting of the slope a and the slope b, and the airbag ring 134 is pushed to move by cooperating with the connecting ring 135 through the fixing block 136. When the airbag ring 134 is embedded in the sealing groove on the fixing ring 124, the connection between the connecting tube 6 and the fixing tube 5 can be sealed.

[0028] See Figure 10 、 Figure 11 、 Figure 13 It can be seen that a baffle 132 is fixedly sleeved on one end of the outer wall of the L-shaped fixing rod 131 close to the insertion rod 123. A slot 101 is opened at the connection between the fixing shell 10 and the connecting block 9. The L-shaped fixing rod 131 is inserted into the inner wall of the slot 101. The baffle 132 can block the slot 101, and a sealing gasket is installed at the contact position between the baffle 132 and the slot 101 to prevent pressure leakage. Exemplarily, two sets of limiting bars 102 are fixedly connected to the inner wall of one end of the fixed shell 10, and the baffle 132 is slidably connected to the inner wall of the limiting bar 102. The baffle 132 is limited by the setting of the limiting bar 102, so that the baffle 132 is in close contact with the slot 101.

[0029] See Figure 8 and Figure 12It can be seen that the outer wall of the airbag ring 134 is located inside the sleeve 7 and is symmetrically fixedly connected to two groups of pulleys 137. The inner wall of the sleeve 7 is fixedly connected to two groups of guide plates 138 for guiding the pulleys 137. The pulleys 137 are limited by the guide plates 138. The airbag ring 134 moves under the push of the connecting ring 135. Under the action of the pulley 137, the airbag ring 134 can be driven to rotate synchronously during the movement, so that the airbag ring 134 is in close contact with the inner wall of the sealing groove on the fixed ring 124, thereby improving the sealing effect (the guide plate 138 is inclined, and the pulley 137 is in contact with the inner wall of the sleeve 7).

[0030] See Figure 11 and Figure 12 It can be seen that two sets of T-shaped rods 139 are fixedly connected to the inner wall of the sleeve 7, and T-shaped slots 1361 matching the T-shaped rods 139 are opened on both sides of the fixed block 136. The mutual cooperation between the T-shaped rods 139 and the T-shaped slots 1361 facilitates the parallel movement of the fixed block 136. Exemplarily, a dovetail groove 133 is provided at one end of the L-shaped fixing rod 131 away from the baffle 132, and a dovetail block matching the dovetail groove 133 is fixedly connected to the inner wall of the fixed shell 10. The L-shaped fixing rod 131 can be driven to move vertically through the mutual cooperation between the dovetail groove 133 and the dovetail block.

[0031] The working principle of the present invention is as follows: when the pump body 1 is used, the docking tube 51 is inserted into the inner wall of the mounting groove 111, and the slider 115 slides to the inner wall of the slide groove 112 at the same time, and the connecting tube 6 is rotated, so that the clamping block 114 slides from one group of clamping grooves 113 to the inner wall of the other group of clamping grooves 113, completing the clamping of the connecting tube 6 and the fixed tube 5. At this time, the air bag ring 134 is just located at the inner wall of the sealing groove on the fixed ring 124. By rotating the handle 2, the pump body 1 is used. Under the cooperation of the hose 4 and the air supply pipe 8, the air pressure pushes the rod 123 to move. When the rod 123 moves to the inner wall of the slot 125, the fixed tube 5 and the connecting tube 6 can be fixed and limited. The greater the pressure, the deeper the rod 123 is embedded in the slot 125, and the better the fixing effect. Furthermore, when the insertion rod 123 moves downward, it synchronously drives the L-shaped fixing rod 131 to move downward. When the L-shaped fixing rod 131 moves, the setting of the inclined surface a and the inclined surface b pushes the fixing block 136 to move. The fixing block 136 pushes the airbag ring 134 through the connecting ring 135. When the airbag ring 134 moves, the moving direction of the pulley 137 is guided by the guide plate 138, so that the airbag ring 134 rotates synchronously during the movement, allowing the airbag ring 134 to fit closely to the inner wall of the sealing groove, reducing the gap, improving the sealing effect, simple operation, and convenient use. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0032] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A medical pressure pump that is easy to plug and unplug, comprising a pump body (1), wherein the bottom end of the pump body (1) is threadedly connected to a handle (2), a pressure indicator (3) is fixedly mounted on the outer wall of the top end of the pump body (1), and an end of the pump body (1) away from the handle (2) is fixedly connected to a hose (4), characterized in that: The output end of the hose (4) is fixedly connected to a fixed tube (5), and the other end of the fixed tube (5) is movably connected to a connecting tube (6). One end of the connecting tube (6) is provided with a connecting component for docking it with the fixed tube (5). The outer wall of the fixed tube (5) is fixedly sleeved with a sleeve (7), and the outer wall of the sleeve (7) is symmetrically fixedly connected to two groups of fixed shells (10). One end of the fixed shell (10) is fixedly connected to a connecting block (9), and the inner wall of the connecting block (9) is provided with a reinforcing component for fixing the connecting tube (6). The inner wall of the fixed shell (10) is provided with a sealing component for sealing the connection between the fixed tube (5) and the connecting tube (6).

2. The easily pluggable medical pressure pump according to claim 1, characterized in that: The connecting assembly includes a mounting groove (111) opened at one end of the connecting pipe (6), two groups of sliding grooves (112) are symmetrically opened on the inner wall of the mounting groove (111), and one end of the fixed pipe (5) away from the pressure indicator (3) is fixedly connected to a butt-joint pipe (51) slidably connected to the inner wall of the mounting groove (111), and two groups of sliding blocks (115) matching the sliding grooves (112) are symmetrically fixedly connected to the outer wall of the butt-joint pipe (51).

3. The easily pluggable medical pressure pump according to claim 2, characterized in that: One end of the fixed tube (5) is symmetrically fixedly connected to a clamping block (114) on both sides of the butt tube (51), and the end of the connecting tube (6) is symmetrically provided with two groups of clamping grooves (113) corresponding to the clamping blocks (114).

4. The easily pluggable medical pressure pump according to claim 3, characterized in that: Two groups of gas pipes (8) are symmetrically fixedly connected to the outer wall of one end of the pressure indicator (3) near the fixed pipe (5), and the other end of the gas pipe (8) is connected to the connecting block (9).

5. The easily pluggable medical pressure pump according to claim 4, characterized in that: The reinforcement assembly comprises a fixing plate (121) fixedly connected to the inner wall of the connecting block (9), a spring (122) fixedly connected to the lower surface of the fixing plate (121), a plug rod (123) extending to the outside of the bottom end of the connecting block (9) fixedly connected to the bottom end of the spring (122), and a through hole is opened on the surface of the fixing plate (121).

6. The easily pluggable medical pressure pump according to claim 5, characterized in that: The inner wall of the sleeve (7) is slidably connected to an airbag ring (134) extending to the outer wall of the fixed tube (5); one end of the connecting tube (6) is fixedly sleeved with a fixed ring (124); a sealing groove is provided on the surface of the fixed ring (124) and is engaged with the airbag ring (134); and two groups of slots (125) matching the insertion rod (123) are symmetrically provided on the outer wall of the fixed ring (124).

7. The easily pluggable medical pressure pump according to claim 6, characterized in that: The outer wall of the top end of the insertion rod (123) is fixedly connected to an L-shaped fixing rod (131) which is slidably connected to the inner wall of the fixing shell (10); a surface on one side of the airbag ring (134) is connected to a connecting ring (135) located on the inner wall of the sleeve (7) via a torsion spring; a surface on the side of the connecting ring (135) away from the airbag ring (134) is symmetrically fixedly connected to a fixing block (136); a surface on one side of the bottom end of the L-shaped fixing rod (131) is provided with an inclined surface a; a contact position between the fixing block (136) and the L-shaped fixing rod (131) is provided with an inclined surface b.

8. The easily pluggable medical pressure pump according to claim 7, characterized in that: A baffle (132) is fixedly sleeved on one end of the outer wall of the L-shaped fixing rod (131) close to the insertion rod (123); a slot (101) is provided at the connection between the fixing shell (10) and the connecting block (9); the L-shaped fixing rod (131) is inserted into the inner wall of the slot (101); two sets of limiting strips (102) are fixedly connected to the inner wall of one end of the fixing shell (10); and the baffle (132) is slidably connected to the inner wall of the limiting strip (102).

9. The easily pluggable medical pressure pump according to claim 8, characterized in that: The outer wall of the airbag ring (134) is located inside the sleeve (7) and is symmetrically fixedly connected to two groups of pulleys (137). The inner wall of the sleeve (7) is fixedly connected to two groups of guide plates (138) for guiding the pulleys (137).

10. The easily pluggable medical pressure pump according to claim 9, characterized in that: Two groups of T-shaped rods (139) are fixedly connected to the inner wall of the sleeve (7), and T-shaped grooves (1361) matching the T-shaped rods (139) are provided on both side surfaces of the fixing block (136). A dovetail groove (133) is provided on one end of the L-shaped fixing rod (131) away from the baffle (132), and a dovetail block matching the dovetail groove (133) is fixedly connected to the inner wall of the fixing shell (10).

Citation Information

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