Medical instrument pressure testing device
By designing a pressure testing device for medical devices including a support table, test cylinder, test frame, test rod, test plate and test spring, the problems of fast pressing speed and difficult debris cleaning in the prior art are solved, and a smoother pressing curve and more efficient cleaning effect are achieved.
Patent Information
- Application Number
- CN202421145140.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The existing medical device pressure testing device is pressurized quickly, making it difficult to clearly observe the deformation of medical devices under different pressure states, and debris may appear on the back surface, which increases the cleaning workload and affects the use effect.
A medical device pressure testing device is designed, including a support table, test cylinder, test frame, test rod, test plate and test spring. Through the cooperation of sliding tracks and limiting grooves, the clamping device can be flexibly adjusted and fixed; at the same time, cleaning cylinders and cleaning plates are set up, and the compression grooves, compression rods and compression springs are used to clean up debris at different depths.
A smoother pressurization curve is achieved, and the compressive limit value of medical devices is clearly recorded, which simplifies the adjustment and fixation process of the clamping device, improves the efficiency of cleaning debris, and enhances the effectiveness of the device.
Smart Images
Figure CN222913359U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, and more specifically, it relates to a pressure testing device for medical devices. Background Art
[0002] The pressure testing of medical devices is usually used to evaluate the pressure resistance performance of medical devices under normal use or abnormal conditions. This test helps to ensure that medical devices can operate safely and reliably in various environments, and prevent equipment failures or potential hazards caused by pressure problems.
[0003] In the existing technology, it is not convenient to adjust and fix the position of the clamping device on the placing table of the pressure testing device. The process of applying pressure by some pressure testing devices is relatively rapid, resulting in the inability to clearly observe the deformation of medical devices under different pressure states. At the same time, debris may appear on the testing table surface, which is not convenient for subsequent use and increases the workload of the staff to clean the table surface, thus failing to achieve the expected use effect. Summary of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] In view of the problems existing in the prior art, the utility model provides a pressure testing device for medical devices to solve the technical problems of fast pressure application speed and inconvenient adjustment of the position of the clamping device mentioned in the background art.
[0006] (2) Technical Solutions
[0007] To achieve the above object, the utility model provides the following technical solution: A pressure testing device for medical devices, including a press. The press includes a support table, on which a support frame is provided. On the support frame, a testing cylinder is provided. At the output end of the testing cylinder, a testing frame is provided. On the testing frame, a testing rod is slidably provided. One end of the testing rod is provided with a testing plate, on which a testing head is provided. Between the testing plate and the testing frame, a testing spring is provided. On the support table, a placing table is provided. Inside the placing table, a moving cavity is provided. On both sides of the moving cavity, a plurality of limiting grooves are provided. Inside the moving cavity, a moving rod is slidably provided. Inside the moving rod, a limiting cavity is provided. Inside the limiting cavity, a limiting rod and a limiting spring are provided. One end of the limiting rod is provided with a limiting block, and on the limiting block, a clamping device is provided.
[0008] The utility model is further arranged such that a sliding track is provided on the support frame, and at one end of the testing frame, a sliding block cooperating with the sliding track is provided to limit the moving direction of the testing frame.
[0009] The utility model is further arranged such that a cleaning cylinder is provided on the placing table, and at the output end of the cleaning cylinder, a cleaning plate is provided to facilitate the cleaning of debris on the placing table.
[0010] The utility model is further configured such that the cleaning plate includes a fixed plate and a movable plate. A pressing groove is provided in the fixed plate. A pressing rod and a pressing spring are provided in the pressing groove. The bottom of the pressing rod is fixedly connected to the movable plate, so that the movable plate has a downward pressing force, and thus the cleaning plate can clean debris at different depths, improving the practicability of the cleaning plate.
[0011] The utility model is further configured such that a test sleeve is provided on the test rack. The test rod is slidably arranged in the test sleeve. A test nut is provided at one end of the test rod to limit the sliding direction and position of the test rod.
[0012] The utility model is further configured such that the clamping device includes a clamping screw. A pressing plate is sleeved on the clamping screw. An inner ring is sleeved on the outer surface of the clamping screw. An adjusting nut is rotatably provided at the top of the inner ring. Through the cooperation of the adjusting nut and the inner ring, the height of the pressing plate on the clamping screw is adjusted.
[0013] The utility model is further configured such that a rectangular hole is provided on the pressing plate. An outer ring is sleeved on the outside of the inner ring. The outer ring is closely attached to the rectangular hole, facilitating the movement of the position of the pressing plate in the horizontal direction of the clamping screw.
[0014] The utility model is further configured such that an adjusting screw is threadedly connected to one side of the rectangular hole. An adjusting knob is provided at one end of the adjusting screw, and the other end is rotatably connected to the outer ring through a bearing, facilitating the adjustment of the protruding distance of the pressing plate on the clamping screw.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the utility model provides a medical device pressure testing device, which has the following beneficial effects:
[0017] 1. By providing a test rod, a test plate and a test spring on the test rack, when the test head performs a pressure test on the medical device to be tested, the pressure is gradually increased, so that the pressure curve is smoother, and the compressive limit value of the medical device can be recorded more clearly and clearly.
[0018] 2. By providing the cooperation of the limiting groove and the limiting block, it is convenient to move and fix the position of the clamping device. By providing the adjusting screw and the adjusting knob, it is convenient to adjust the length of one side of the pressing plate. By providing the adjusting nut and the clamping screw, it is convenient to drive the inner ring and the outer ring to adjust the height of the pressing plate. By providing the inner ring, the outer ring and the rectangular hole, it is convenient to support the pressing plate and adjust the position of the pressing plate. The medical device is clamped by the pressing plate, and the adjustment is simple and convenient.
[0019] 3. By setting up a cleaning cylinder, it is convenient to drive the cleaning plate to move. By setting a pressing groove, a pressing rod and a pressing spring on the fixing plate, the moving plate has a downward pressing force, so that the cleaning plate can clean debris at different depths, improving the practicability of the cleaning plate. Description of the Drawings
[0020] Figure 1 It is a schematic diagram of the overall structure of the press in the present utility model;
[0021] Figure 2 It is a schematic diagram of the structures of the test stand, the test rod, the test plate, the test head and the test spring in the present utility model;
[0022] Figure 3 It is a schematic diagram of the sectional structure of the cleaning plate in the present utility model;
[0023] Figure 4 It is a schematic diagram of the structures of the placement table, the moving rod and the limiting block in the present utility model;
[0024] Figure 5 It is an exploded view of the clamping device in the present utility model.
[0025] In the figure: 1. Press; 2. Support table; 3. Support frame; 4. Test cylinder; 5. Test stand; 6. Test rod; 7. Test plate; 8. Test head; 9. Test spring; 10. Placement table; 11. Moving cavity; 12. Limiting groove; 13. Moving rod; 14. Limiting cavity; 15. Limiting rod; 16. Limiting spring; 17. Limiting block; 18. Sliding track; 19. Sliding block; 20. Cleaning cylinder; 21. Cleaning plate; 22. Fixing plate; 23. Moving plate; 24. Pressing groove; 25. Pressing rod; 26. Pressing spring; 27. Test sleeve; 28. Test nut; 29. Clamping screw; 30. Pressure plate; 31. Inner ring; 32. Adjusting nut; 33. Rectangular hole; 34. Outer ring; 35. Adjusting screw; 36. Adjusting knob. Detailed Embodiment
[0026] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.
[0027] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which this application belongs.
[0028] In the present utility model, unless otherwise specified, the directions such as "upper" and "lower" usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inner" and "outer" refer to the inner and outer of the contour of each component itself, but the above-mentioned direction terms are not used to limit the present utility model.
[0029] Please refer to Figures 1-5 , a pressure testing device for medical devices, comprising a press 1, the press 1 includes a support table 2, a support frame 3 is provided on the support table 2, a test cylinder 4 is provided on the support frame 3, a test frame 5 is provided at the output end of the test cylinder 4, a test rod 6 is slidably provided on the test frame 5, a test plate 7 is provided at one end of the test rod 6, a test head 8 is provided on the test plate 7, a test spring 9 is provided between the test plate 7 and the test frame 5, a placement table 10 is provided on the support table 2, a moving cavity 11 is provided in the placement table 10, a plurality of limiting grooves 12 are provided on both sides of the moving cavity 11, a moving rod 13 is slidably provided in the moving cavity 11, a limiting cavity 14 is provided in the moving rod 13, a limiting rod 15 and a limiting spring 16 are provided in the limiting cavity 14, a limiting block 17 is provided at one end of the limiting rod 15, a clamping device is provided on the limiting block 17, a sliding track 18 is provided on the support frame 3, a sliding block 19 cooperating with the sliding track 18 is provided at one end of the test frame 5, a cleaning cylinder 20 is provided on the placement table 10, a cleaning plate 21 is provided at the output end of the cleaning cylinder 20, the cleaning plate 21 includes a fixing plate 22 and a moving plate 23, a pressing groove 24 is provided in the fixing plate 22, a pressing rod 25 and a pressing spring 26 are provided in the pressing groove 24, the bottom of the pressing rod 25 is fixedly connected to the moving plate 23, a test sleeve 27 is provided on the test frame 5, the test rod 6 is slidably arranged in the test sleeve 27, and a test nut 28 is provided at one end of the test rod 6.
[0030] In this embodiment, during use, first place the medical device to be tested on the placement table 10 and fix it with the clamping device. Then start the test cylinder 4. The output end of the test cylinder 4 drives the test frame 5 to move downward. The sliding block 19 of the test frame 5 moves along the sliding track 18 to restrict the moving direction of the test frame 5. The test head 8 on the test plate 7 first contacts the device. While applying pressure, the test head 8 records pressure data with the external control system. When the test head 8 applies pressure, it drives the test rod 6 to slide along the test sleeve 27 and compresses the test spring 9 through the test plate 7. As the test spring 9 is compressed, the downward pressure of the test head 8 on the device gradually increases until the device reaches the compressive limit value. Then the test cylinder 4 retracts, and the debris generated during the test is cleaned. The cleaning cylinder 20 is driven. The output shaft of the cleaning cylinder 20 drives the cleaning plate 21 to clean the debris on the placement table 10. At this time, the compression spring 26 in the pressing groove 24 is in a compressed state, so that the pressing rod 25 and the moving plate 23 have a downward pressure, and further makes the moving plate 23 closely adhere to the placement table 10, which can realize the cleaning of debris at different heights on the placement table 10 and improve the cleaning effect.
[0031] Please refer to Figure 5 , as an implementation manner of the clamping device: The clamping device includes a clamping screw 29. A pressing plate 30 is sleeved on the clamping screw 29. An inner ring 31 is sleeved on the outer surface of the clamping screw 29. An adjusting nut 32 is rotatably provided at the top of the inner ring 31. A rectangular hole 33 is provided on the pressing plate 30. An outer ring 34 is sleeved on the outside of the inner ring 31. The outer ring 34 closely adheres to the rectangular hole 33. An adjusting screw 35 is threadedly connected to one side of the rectangular hole 33. One end of the adjusting screw 35 is provided with an adjusting knob 36, and the other end is rotatably connected to the outer ring 34 through a bearing.
[0032] More specifically, when clamping the device, stretch the limit blocks 17 to both sides. The limit blocks 17 drive the limit rods 15 to stretch the limit springs 16, so that the limit blocks 17 leave the limit grooves 12. The moving rod 13 slides horizontally in the moving cavity 11 to adjust the position of the clamping device. After the movement is completed, release the limit blocks 17. Under the elastic force of the limit springs 16, the limit rods 15 drive the limit blocks 17 to move towards the placement table 10 side, so that the limit blocks 17 are clamped into the limit grooves 12, thereby fixing the positions of the limit blocks 17 and the moving rod 13, and further fixing the position of the clamping device. Rotate the adjusting screw 35 to drive the inner ring 31 and the outer ring 34 to adjust the height, and further drive the pressing plate 30 to adjust the height. Rotate the adjusting knob 36. The adjusting knob 36 drives the adjusting screw 35 to rotate on the outer ring 34. Through the threaded connection between the adjusting screw 35 and the pressing plate 30, drive the rectangular hole 33 to move on the outer ring 34, and further adjust the extending distance of the pressing plate 30 to fix the position of the device through the pressing plate 30.
[0033] In summary, when the overall device is in use or operation: during use, first place the medical device to be tested on the placement table 10 and fix it through the clamping device. Then, start the test cylinder 4. The output end of the test cylinder 4 drives the test frame 5 to move downward. The sliding block 19 of the test frame 5 moves along the sliding track 18 to limit the moving direction of the test frame 5. The test head 8 on the test plate 7 first contacts the instrument. While applying pressure, the test head 8 records pressure data with the external control system. When the test head 8 applies pressure, it drives the test rod 6 to slide along the test sleeve 27 and compresses the test spring 9 through the test plate 7. As the test spring 9 is compressed, the downward pressure of the test head 8 on the instrument gradually increases until the instrument reaches the compressive limit value. Then, the test cylinder 4 retracts, and the debris generated during the test is cleaned. The cleaning cylinder 20 is driven, and the output shaft of the cleaning cylinder 20 drives the cleaning plate 21 to clean the debris on the placement table 10. At this time, the compression spring 26 in the pressing groove 24 is in a compressed state, so that the pressing rod 25 and the moving plate 23 have a downward pressure, and then the moving plate 23 closely adheres to the placement table 10, which can realize the cleaning of debris at different heights on the placement table 10 and improve the cleaning effect.
[0034] When clamping the instrument, stretch the limit block 17 to both sides. The limit block 17 drives the limit rod 15 to stretch the limit spring 16, so that the limit block 17 leaves the limit groove 12. The moving rod 13 slides horizontally in the moving cavity 11 to adjust the position of the clamping device. After the movement is completed, release the limit block 17. Under the elastic force of the limit spring 16, the limit rod 15 drives the limit block 17 to move towards the placement table 10 side, so that the limit block 17 is clamped into the limit groove 12, thereby fixing the positions of the limit block 17 and the moving rod 13, and further fixing the position of the clamping device. Rotate the adjusting screw 35 to drive the inner ring 31 and the outer ring 34 to adjust the height, and then drive the pressing plate 30 to adjust the height. Rotate the adjusting knob 36. The adjusting knob 36 drives the adjusting screw 35 to rotate on the outer ring 34. Through the threaded connection between the adjusting screw 35 and the pressing plate 30, the rectangular hole 33 is driven to move on the outer ring 34, thereby adjusting the extending distance of the pressing plate 30 and fixing the position of the instrument through the pressing plate 30.
[0035] In all the above-mentioned solutions, for the connection between two components, welding, the cooperation connection of bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A medical device pressure testing device, comprising a press (1), characterized in that: The press machine (1) comprises a support platform (2), a support frame (3) is provided on the support platform (2), a test cylinder (4) is provided on the support frame (3), a test frame (5) is provided at the output end of the test cylinder (4), a test rod (6) is slidably provided on the test frame (5), a test plate (7) is provided at one end of the test rod (6), a test head (8) is provided on the test plate (7), a test spring (9) is provided between the test plate (7) and the test frame (5), and the support platform ( 2) is provided with a storage platform (10), a movable cavity (11) is provided in the storage platform (10), a plurality of limit grooves (12) are provided on both sides of the movable cavity (11), a movable rod (13) is slidably provided in the movable cavity (11), a limit cavity (14) is provided in the movable rod (13), a limit rod (15) and a limit spring (16) are provided in the limit cavity (14), a limit block (17) is provided at one end of the limit rod (15), and a clamping device is provided on the limit block (17).
2. A medical device pressure testing device according to claim 1, characterized in that: The support frame (3) is provided with a sliding track (18), and one end of the test frame (5) is provided with a sliding block (19) that cooperates with the sliding track (18).
3. A medical device pressure testing device according to claim 1, characterized in that: A cleaning cylinder (20) is provided on the storage table (10), and a cleaning plate (21) is provided at the output end of the cleaning cylinder (20).
4. A medical device pressure testing device according to claim 3, characterized in that: The cleaning plate (21) comprises a fixed plate (22) and a movable plate (23); a clamping groove (24) is provided in the fixed plate (22); a clamping rod (25) and a clamping spring (26) are provided in the clamping groove (24); and the bottom of the clamping rod (25) is fixedly connected to the movable plate (23).
5. The medical device pressure testing device according to claim 1, characterized in that: The test frame (5) is provided with a test sleeve (27), the test rod (6) is slidably arranged in the test sleeve (27), and one end of the test rod (6) is provided with a test nut (28).
6. A medical device pressure testing device according to claim 1, characterized in that: The clamping device comprises a clamping screw (29), a pressure plate (30) is sleeved on the clamping screw (29), an inner ring (31) is sleeved on the outer surface of the clamping screw (29), and an adjusting nut (32) is rotatably provided on the top of the inner ring (31).
7. A medical device pressure testing device according to claim 6, characterized in that: The pressing plate (30) is provided with a rectangular hole (33), and an outer ring (34) is sleeved on the outer side of the inner ring (31), and the outer ring (34) is tightly attached to the rectangular hole (33).
8. A medical device pressure testing device according to claim 7, characterized in that: An adjusting screw rod (35) is threadedly connected to one side of the rectangular hole (33); an adjusting knob (36) is provided at one end of the adjusting screw rod (35); and the other end is rotatably connected to the outer ring (34) via a bearing.