Dialysis paper cover material air permeability detection device

Abstract

The present invention relates to the technical field of air permeability testing, and discloses an air permeability testing device for dialysis paper cover materials, comprising a testing component, comprising a base, a support frame fixed to the top of the base, an upper pressure head provided at the bottom of the support frame, a lower pressure head fixed to the top of the base, and an auxiliary component provided at the top of the base, comprising a pushing member, the pushing member comprising a support rod, the support rod fixed to one side of the upper pressure head, a rotating sleeve provided at the end of the support rod, a rotating rod inserted in the rotating sleeve, and a push plate hinged at the bottom end of the rotating rod via a hinge plate. The beneficial effects of the present invention are as follows: the air permeability of the rolled dialysis paper cover material is tested by the testing component, and during the testing process, the dialysis paper cover material can be automatically moved by the cooperation of the auxiliary component, and the consistency of the stroke of each movement can be ensured, thereby avoiding deviations in the test results.

Description

Technical Field

[0001] The present invention relates to the technical field of air permeability detection, and in particular to an air permeability detection device for a dialysis paper cover material. Background Art

[0002] Dialysis paper cover material is a material used for medical device packaging. In order to ensure the safety and effectiveness of medical devices, it is necessary to use an air permeability tester to test the air permeability of the dialysis paper cover material. When the dialysis paper cover material is processed and not yet cut, it is necessary to test different positions of a roll of dialysis paper cover material during the air permeability test to accurately evaluate the product's air permeability. Therefore, during the test process, after testing one position, the sample position needs to be moved and then tested at the next position. In the process of moving the dialysis paper cover material, most of the time it is moved manually, and manual movement cannot ensure that the distance of each movement is the same. Inconsistent movement distances will lead to uneven distribution of test points. In some positions, the test points are too dense, while in other positions, the test points are sparse. The test data obtained in this way cannot accurately reflect the overall air permeability of the dialysis paper cover material, and may exaggerate or underestimate the air permeability of certain areas, causing large deviations in the test results. Summary of the Invention

[0003] In view of the problems existing in the above-mentioned existing dialysis paper cover material air permeability detection device, the present invention is proposed.

[0004] Therefore, the problem to be solved by the present invention is that it is difficult to ensure that the dialysis paper cover material moves the same distance each time when it is moved, which leads to deviation in the test results.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a device for testing the air permeability of a dialysis paper cover material, comprising: a detection assembly, comprising a base, a support frame fixed to the top of the base, an upper pressure head provided at the bottom of the support frame, and a lower pressure head fixed to the top of the base;

[0006] The auxiliary component is arranged on the top of the base, including a pushing member, and the pushing member includes a support rod, the support rod is fixed to one side of the upper pressure head, a rotating sleeve is provided at the end of the support rod, a rotating rod is inserted in the rotating sleeve, and the bottom end of the rotating rod is hinged to a push plate through a hinge plate, a support plate is fixed on the top of the base, a groove is provided on the support plate, a splint is provided in the groove, a rotating column is fixed on the rotating sleeve, the rotating column is movably connected to the support rod, and the splint and the push plate cooperate to clamp and fix the dialysis paper cover material, so as to drive the dialysis paper cover material to move.

[0007] As a preferred solution of the dialysis paper cover material air permeability detection device described in the present invention, the auxiliary component also includes a rotating part, the rotating part includes a rotating sleeve, the rotating sleeve is inserted into the splint, a first fixed shaft is fixed in the splint, a first spiral groove is provided on the rotating sleeve, the first fixed shaft slides in the first spiral groove, a movable column is inserted in the rotating sleeve, a second spiral groove is provided on the movable column, a second fixed shaft is fixed in the rotating sleeve, and the second fixed shaft slides in the second spiral groove.

[0008] As a preferred solution of the air permeability testing device for the dialysis paper cover material of the present invention, a fixed plate is fixed to the outside of the movable column, a first spring is fixed to the bottom end of the movable column, the bottom end of the first spring is in contact with the inner wall of the rotating sleeve, a positioning hole is provided on the push plate, the positioning hole cooperates with the top end of the movable column, and the top end of the movable column and the positioning hole are both rectangular.

[0009] As a preferred solution of the dialysis paper cover material air permeability detection device described in the present invention, the auxiliary component further includes a positioning member, the positioning member includes a support block, the support block is rotatably connected to the bottom of the rotating sleeve through a bearing, a positioning column is inserted into the support block, a mounting block is fixed on one side of the support plate, both ends of the positioning column are respectively fixed to the two mounting blocks, a second spring is fixed on one side of the support block, and the other end of the second spring is fixed to the mounting block.

[0010] As a preferred solution of the dialysis paper cover material air permeability detection device described in the present invention, the auxiliary component also includes a pressing member, and the pressing member includes a positioning plate. The positioning plate is fixed to one side of the upper pressure head, and a fixing rod is inserted into the positioning plate. The bottom end of the fixing rod is rotatably connected to a pressure wheel via a rotating shaft, a fixing block is fixed to the top of the fixing rod, and a third spring is fixed to the bottom of the fixing block, and the bottom end of the third spring is fixed to the fixing rod.

[0011] As a preferred solution of the dialysis paper cover material air permeability testing device described in the present invention, the auxiliary component further includes a locking member, the locking member includes a stabilizing block, the stabilizing block is fixed to one side of the support rod, an insertion rod is inserted into the stabilizing block, and a socket corresponding to the insertion rod is provided on the rotating column.

[0012] As a preferred solution of the air permeability testing device for the dialysis paper cover material of the present invention, a connecting block is fixed to one end of the insertion rod, a fourth spring is fixed to one side of the connecting block, the other end of the fourth spring is fixed to the stabilizing block, an extrusion rod is fixed to the bottom of the support frame, and a force-bearing groove corresponding to the extrusion rod is provided on the insertion rod.

[0013] As a preferred solution of the dialysis paper cover material air permeability testing device described in the present invention, a torsion spring is fixed to the outside of the rotating column, the other end of the torsion spring is fixed to the support rod, a fixed column is fixed to the bottom of the support rod, the fixed column is L-shaped, and the other end is in contact with the rotating sleeve and supports the rotating sleeve.

[0014] As a preferred solution of the dialysis paper cover material air permeability detection device described in the present invention, the auxiliary component further includes a limiting member, the limiting member includes a limiting column, a chamber is provided on the rotating rod, the limiting column is located in the chamber, a limiting hole is provided on the rotating sleeve, the limiting column is engaged with the limiting hole, and a fifth spring is fixed to one end of the limiting column.

[0015] As a preferred solution of the air permeability testing device for dialysis paper cover materials of the present invention, there are multiple positioning holes, which are evenly distributed in a straight line on the rotating sleeve.

[0016] The beneficial effects of the present invention are: the air permeability of the rolled dialysis paper cover material is detected by the detection component. During the detection process, the dialysis paper cover material can be automatically moved through the cooperation of the auxiliary component, and the stroke of each movement can be ensured to be consistent, thereby avoiding deviations in the detection results.

[0017] Furthermore, the movement stroke can be adjusted according to the characteristics of different types of dialysis paper cover materials, so as to be able to perform comprehensive testing on various types of dialysis paper cover materials.

[0018] When the upper pressure head presses the dialysis paper cover material, the dialysis paper cover material on the top of the lower pressure head is tightened and straightened by the cooperation of the pressing member and the pushing member, so as to avoid wrinkles in the detection area, which will affect the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0020] Figure 1 This is an overall diagram of the air permeability testing device for dialysis paper cover materials.

[0021] Figure 2 This is a front view structural diagram of the auxiliary components of the dialysis paper cover material air permeability testing device.

[0022] Figure 3 Dialysis paper cover material air permeability testing device Figure 2 A partial enlarged structural diagram of point A in the middle.

[0023] Figure 4 This is a partial structural diagram of the support plate of the dialysis paper cover material air permeability testing device.

[0024] Figure 5 Dialysis paper cover material air permeability testing device Figure 4 A partial enlarged structural diagram of point B in the middle.

[0025] Figure 6 This is a structural diagram of the rotating parts of the dialysis paper cover material air permeability testing device.

[0026] Figure 7 This is a structural diagram of the locking parts of the dialysis paper cover material air permeability testing device.

[0027] Figure 8 This is a cross-sectional structural diagram of the rotating sleeve of the dialysis paper cover material air permeability testing device.

[0028] In the figure: 100, detection component; 101, base; 102, support frame; 103, upper pressure head; 104, lower pressure head; 200, auxiliary component; 201, push member; 201a, support rod; 201b, rotating sleeve; 201c, rotating rod; 201d, push plate; 201e, support plate; 201e-1, groove; 201f, clamping plate; 201g, rotating column; 202, rotating member; 202a, rotating sleeve; 202b, first fixed shaft; 202a-1, first spiral groove; 202c, movable column; 202c-1, second spiral groove; 202d, second fixed shaft; 201d-1, positioning hole; 202f, first spring; 202e, fixed plate; 2 06, limiting member; 206a, limiting column; 201c-1, chamber; 201b-1, limiting hole; 206b, fifth spring; 203, positioning member; 203a, support block; 203b, positioning column; 203c, mounting block; 203d, second spring; 205, locking member; 205a, stabilizing block; 205b, insertion rod; 201g-1, insertion hole; 205c, connecting block; 205d, fourth spring; 205e, extrusion rod; 205b-1, force groove; 205f, torsion spring; 205g, fixing column; 204, pressing member; 204a, positioning plate; 204b, fixing rod; 204c, pressure wheel; 204d, fixing block; 204e, third spring. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments. Example 1

[0032] Reference Figure 1 、 Figure 2 、 Figure 4 and Figure 6 , which is the first embodiment of the present invention, provides a device for detecting the air permeability of a dialysis paper cover material. The device for detecting the air permeability of a dialysis paper cover material includes a detection component 100, including a base 101, a support frame 102 is fixed on the top of the base 101, an upper pressure head 103 is provided at the bottom of the support frame 102, and a lower pressure head 104 is fixed on the top of the base 101.

[0033] When testing the dialysis paper cover material, the sample is placed on top of the lower pressure head 104, and then the upper pressure head 103 moves downward and presses the sample tightly. At this time, the air permeability can be tested. This is the existing technology and will not be elaborated in this solution. Those skilled in the art can clearly understand the working principle.

[0034] The auxiliary component 200 is arranged on the top of the base 101, and includes a pushing member 201. The pushing member 201 includes a support rod 201a, and the support rod 201a is fixed to one side of the upper pressure head 103. A rotating sleeve 201b is provided at the end of the support rod 201a, and a rotating rod 201c is inserted in the rotating sleeve 201b. The bottom end of the rotating rod 201c is hinged to a push plate 201d through a hinge plate. A support plate 201e is fixed on the top of the base 101, and a groove 201e-1 is provided on the support plate 201e. A splint 201f is provided in the groove 201e-1. A rotating column 201g is fixed on the rotating sleeve 201b, and the rotating column 201g is movably connected to the support rod 201a. The splint 201f and the push plate 201d cooperate to clamp and fix the dialysis paper cover material, thereby driving the dialysis paper cover material to move.

[0035] The rotating rod 201c is movably connected to the rotating sleeve 201b, and the push plate 201d naturally hangs down and is in a horizontal state. The support plate 201e is used to support the dialysis paper cover material, and the height of the support plate 201e is lower than the lower pressure head 104. There are two splints 201f, which are located on both sides of the top of the support plate 201e.

[0036] The auxiliary component 200 also includes a rotating part 202, which includes a rotating sleeve 202a. The rotating sleeve 202a is inserted into the splint 201f, and a first fixed shaft 202b is fixed in the splint 201f. A first spiral groove 202a-1 is provided on the rotating sleeve 202a, and the first fixed shaft 202b slides in the first spiral groove 202a-1. A movable column 202c is inserted into the rotating sleeve 202a, and a second spiral groove 202c-1 is provided on the movable column 202c. A second fixed shaft 202d is fixed in the rotating sleeve 202a, and the second fixed shaft 202d slides in the second spiral groove 202c-1.

[0037] The number of rotating parts 202 corresponds to the splint 201f, and a positioning hole 201d-1 is provided on the push plate 201d. The positioning hole 201d-1 cooperates with the top of the movable column 202c. The top of the movable column 202c and the positioning hole 201d-1 are both rectangular. The first spring 202f fixed at the bottom of the movable column 202c is used to apply an upward thrust to it. The fixed plate 202e fixed on the outside of the movable column 202c is used to cooperate with the push plate 201d to drive the movable column 202c to move downward.

[0038] When the upper pressure head 103 moves downward, it will drive the push plate 201d to move downward, and at the same time, the positioning hole 201d-1 will be sleeved on the outside of the movable column 202c. As the push plate 201d moves downward, it will contact the fixed plate 202e and push the fixed plate 202e to move downward. At this time, the fixed plate 202e will drive the movable column 202c to move downward, and make the first fixed shaft 202b slide in the first spiral groove 202a-1. Through the cooperation of the two, the rotating sleeve 202a is driven to rotate. At this time, the second fixed shaft 202d will slide in the second spiral groove 202c-1, and through the two, the splint 201f is driven to move upward.

[0039] At the same time, the push plate 201d will contact the dialysis paper cover material and clamp the dialysis paper cover material by cooperating with the splint 201f. As the upper pressure head 103 continues to move downward, the push plate 201d will tilt and drive the dialysis paper cover material to move by cooperating with the splint 201f. In this way, the detection position of the dialysis paper cover material can be switched, and the stability of the dialysis paper cover material during movement can be ensured. The stroke of each movement is the same, so that the detection points of the dialysis paper cover material can be evenly distributed, thereby avoiding deviations in the detection results.

[0040] By moving the rotating rod 201c up and down in the rotating sleeve 201b, the height of the push plate 201d can be adjusted, so that the distance between the push plate 201d and the dialysis paper cover material to be tested below can be adjusted, and the push plate 201d can be brought into contact with the dialysis paper cover material earlier or later, and the dialysis paper cover material can be driven to move earlier or later. Since the descending stroke of the upper pressure head 103 is constant, the moving stroke of the dialysis paper cover material can be adjusted to meet the detection requirements required for different types of dialysis paper cover materials.

[0041] The auxiliary component 200 also includes a limit member 206, which includes a limit column 206a. A chamber 201c-1 is provided on the rotating rod 201c, and the limit column 206a is located in the chamber 201c-1. A limit hole 201b-1 is provided on the rotating sleeve 201b. The limit column 206a is engaged with the limit hole 201b-1. A fifth spring 206b is fixed to one end of the limit column 206a. There are multiple positioning limit holes 201b-1, which are evenly distributed in a straight line on the rotating sleeve 201b. When the limit column 206a is engaged with the limit hole 201b-1, the position of the rotating rod 201c can be locked by the cooperation between the two, so as to avoid the situation where the position adjustment of the rotating rod 201c will change. By setting multiple limit holes 201b-1, the rotating rod 201c can be locked at different positions. The fifth spring 206b is used to apply thrust to the limit column 206a. Example 2

[0042] Reference Figure 2-Figure 8 , which is the second embodiment of the present invention, and is based on the previous embodiment.

[0043] Specifically, the auxiliary component 200 also includes a positioning member 203, which includes a support block 203a, which is rotatably connected to the bottom of the rotating sleeve 202a through a bearing, a positioning column 203b is movably connected to the support block 203a, a mounting block 203c is fixed on one side of the support plate 201e, and both ends of the positioning column 203b are respectively fixed to the two mounting blocks 203c, a second spring 203d is fixed on one side of the support block 203a, and the other end of the second spring 203d is fixed to the mounting block 203c.

[0044] The positioning column 203b is used to support and position the support block 203a, and the support block 203a supports and positions the rotating sleeve 202a. When the clamping plate 201f moves, the support block 203a will be driven to move through the rotating sleeve 202a, thereby preventing the clamping plate 201f from deviating during movement.

[0045] When the push plate 201d moves upward and separates from the movable column 202c, the first spring 202f will push the movable column 202c upward. At this time, the splint 201f will move downward and separate from the bottom of the head dialysis paper cover material. At this time, the second spring 203d can push the support block 203a to move in the opposite direction, and move the splint 201f to the initial position, and avoid the splint 201f from moving the dialysis paper cover material when moving in the opposite direction, thereby causing the moving stroke of the dialysis paper cover material to change.

[0046] A stabilizing rod is fixed to one side of the support block 203a, and the top end of the stabilizing rod is movably connected to the inside of the clamping plate 201f, which is used to position the clamping plate 201f to prevent the clamping plate 201f from deviating when moving up and down.

[0047] Specifically, the auxiliary component 200 also includes a locking piece 205, which includes a stabilizing block 205a. The stabilizing block 205a is fixed to one side of the support rod 201a, and the insertion rod 205b is movably connected to the stabilizing block 205a. The rotating column 201g is provided with a socket 201g-1 corresponding to the insertion rod 205b. A connecting block 205c is fixed to one end of the insertion rod 205b, and a fourth spring 205d is fixed to one side of the connecting block 205c. The other end of the fourth spring 205d is fixed to the stabilizing block 205a. An extrusion rod 205e is fixed to the bottom of the support frame 102, and a force groove 205b-1 corresponding to the extrusion rod 205e is provided on the insertion rod 205b, and the inner wall of the force groove 205b-1 is inclined.

[0048] A torsion spring 205f is fixed to the outside of the rotating column 201g, and the other end of the torsion spring 205f is fixed to the support rod 201a. A fixed column 205g is fixed to the bottom of the support rod 201a. The fixed column 205g is L-shaped, and the other end contacts the rotating sleeve 201b and supports the rotating sleeve 201b.

[0049] When the rotating sleeve 201b is tilted to a certain angle and stops rotating, the socket 201g-1 will coincide with the insertion rod 205b, and the fourth spring 205d will apply a pulling force to the connecting block 205c, so that the connecting block 205c drives the insertion rod 205b to engage with the socket 201g-1. Through the cooperation of the two, the angle of the rotating sleeve 201b can be locked.

[0050] When the upper pressure head 103 drives the rotating sleeve 201b to move upward, the rotating sleeve 201b will maintain its current state and move upward in a horizontal manner instead of resetting in a rotating manner, so as to avoid the push plate 201d from contacting the dialysis paper cover material after the upper pressure head 103 moves upward, and will not cause the position of the dialysis paper cover material to change.

[0051] When the upper pressure head 103 moves upward and resets, the bottom end of the extrusion rod 205e will squeeze the inclined surface of the inner wall of the force-bearing groove 205b-1, and the cooperation of the two will drive the insertion rod 205b to separate from the socket 201g-1, thereby releasing the restriction on the rotating column 201g. At this time, the rotating sleeve 201b can be rotated downward by the torsion spring 205f and the self-gravity of the rotating sleeve 201b, and when the rotating sleeve 201b is about to rotate to a vertical state, it is restricted by the fixed column 205g so that its final state is at a certain tilt, thereby preventing the rotating sleeve 201b from being unable to rotate when moving downward, thereby hindering the downward movement of the upper pressure head 103. Example 3

[0052] Reference Figures 1-8 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0053] Specifically, the auxiliary component 200 also includes a clamping member 204, which includes a positioning plate 204a. The positioning plate 204a is fixed to one side of the upper pressure head 103. A fixing rod 204b is inserted into the positioning plate 204a. The bottom end of the fixing rod 204b is rotatably connected to a pressure wheel 204c through a rotating shaft. A fixing block 204d is fixed to the top of the fixing rod 204b. A third spring 204e is fixed to the bottom of the fixing block 204d. The bottom end of the third spring 204e is fixed to the fixing rod 204b.

[0054] The fixing rod 204b is movably connected to the positioning plate 204a. When the upper pressure head 103 is about to press the dialysis paper cover material, the pressure wheel 204c will contact the dialysis paper cover material and apply a certain pressing force to the dialysis paper cover material. At this time, when the push plate 201d and the splint 201f drive the dialysis paper cover material to move, the dialysis paper cover material will be subjected to a certain pulling force, thereby tightening and straightening the position of the dialysis paper cover material to be tested on the top of the lower pressure head 104, thereby avoiding wrinkles at the detection point of the dialysis paper cover material, which will affect the detection accuracy.

[0055] By setting the fixed block 204d and the third spring 204e, the pressure wheel 204c can have a certain elasticity when pressing the dialysis paper cover material, avoiding the situation where the pressure wheel 204c presses the dialysis paper cover material too tightly and tears the dialysis paper cover material, and the rotation of the pressure wheel 204c can further protect the dialysis paper cover material.

[0056] During use, the rolled dialysis paper cover material is laid flat on the top of the support plate 201e. When the upper pressure head 103 moves downward, it will drive the push plate 201d to move downward. At the same time, the positioning hole 201d-1 will be sleeved on the outside of the movable column 202c. As the push plate 201d moves downward, it will contact the fixed plate 202e and push the fixed plate 202e to move downward. At this time, the fixed plate 202e will drive the movable column 202c to move downward and make the first fixed shaft 202b slide in the first spiral groove 202a-1. The cooperation between the two drives the rotating sleeve 202a to rotate. At this time, the second fixed shaft 202d will slide in the second spiral groove 202c-1 and drive the splint 201f to move upward through the two.

[0057] At the same time, the push plate 201d will contact the dialysis paper cover material and clamp the dialysis paper cover material by cooperating with the splint 201f. As the upper pressure head 103 continues to move downward, the push plate 201d will tilt and drive the dialysis paper cover material to move by cooperating with the splint 201f. In this way, the detection position of the dialysis paper cover material can be switched, and the stability of the dialysis paper cover material during movement can be ensured. The stroke of each movement is the same, so that the detection points of the dialysis paper cover material can be evenly distributed, thereby avoiding deviations in the detection results.

[0058] When the upper pressure head 103 is about to press the dialysis paper cover material, the pressure wheel 204c will contact the dialysis paper cover material and apply a certain pressing force to the dialysis paper cover material. At this time, when the push plate 201d and the clamping plate 201f drive the dialysis paper cover material to move, the dialysis paper cover material will be subjected to a certain pulling force, thereby tightening and straightening the position of the dialysis paper cover material to be tested on the top of the lower pressure head 104, thereby avoiding wrinkles at the detection point of the dialysis paper cover material, which will affect the accuracy of the detection.

[0059] When different types of dialysis paper cover materials are being tested and the sample movement stroke needs to be adjusted, the rotating rod 201c moves up and down in the rotating sleeve 201b to adjust the height of the push plate 201d, thereby adjusting the distance between the push plate 201d and the dialysis paper cover material to be tested below, thereby allowing the push plate 201d to contact the dialysis paper cover material earlier or later, and drive the dialysis paper cover material to move earlier or later. Since the descending stroke of the upper pressure head 103 is constant, the movement stroke of the dialysis paper cover material can be adjusted to meet the testing requirements of different types of dialysis paper cover materials.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for testing the air permeability of a dialysis paper cover material, characterized by: include, A detection component (100) comprises a base (101), a support frame (102) is fixed on the top of the base (101), an upper pressure head (103) is provided on the bottom of the support frame (102), and a lower pressure head (104) is fixed on the top of the base (101); An auxiliary component (200) is arranged on the top of the base (101), comprising a pusher (201), the pusher (201) comprising a support rod (201a), the support rod (201a) being fixed to one side of the upper pressure head (103), a rotating sleeve (201b) being provided at the end of the support rod (201a), a rotating rod (201c) being inserted into the rotating sleeve (201b), the bottom end of the rotating rod (201c) being hinged to a push plate (201d) via a hinge plate, and the base ( 101) A support plate (201e) is fixed on the top, a groove (201e-1) is provided on the support plate (201e), a clamping plate (201f) is provided in the groove (201e-1), a rotating column (201g) is fixed on the rotating sleeve (201b), the rotating column (201g) is movably connected to the support rod (201a), and the clamping plate (201f) cooperates with the push plate (201d) to clamp and fix the dialysis paper cover material, thereby driving the dialysis paper cover material to move; The auxiliary component (200) further includes a rotating member (202), the rotating member (202) including a rotating sleeve (202a), the rotating sleeve (202a) being inserted into the clamping plate (201f), a first fixed shaft (202b) being fixed in the clamping plate (201f), a first spiral groove (202a-1) being provided on the rotating sleeve (202a), the first fixed shaft (202b) sliding in the first spiral groove (202a-1), a movable column (202c) being inserted into the rotating sleeve (202a), a second spiral groove (202c-1) being provided on the movable column (202c), a second fixed shaft (202d) being fixed in the rotating sleeve (202a), the second fixed shaft (202d) sliding in the second spiral groove (202c-1); A fixed plate (202e) is fixed to the outside of the movable column (202c), a first spring (202f) is fixed to the bottom end of the movable column (202c), the bottom end of the first spring (202f) contacts the inner wall of the rotating sleeve (202a), a positioning hole (201d-1) is provided on the push plate (201d), the positioning hole (201d-1) cooperates with the top end of the movable column (202c), and the top end of the movable column (202c) and the positioning hole (201d-1) are both rectangular.

2. The device for detecting air permeability of a dialysis paper cover material according to claim 1, wherein: The auxiliary component (200) further comprises a positioning member (203), wherein the positioning member (203) comprises a support block (203a), wherein the support block (203a) is rotatably connected to the bottom of the rotating sleeve (202a) via a bearing, wherein a positioning column (203b) is inserted into the support block (203a), wherein a mounting block (203c) is fixed to one side of the support plate (201e), wherein both ends of the positioning column (203b) are respectively fixed to the two mounting blocks (203c), wherein a second spring (203d) is fixed to one side of the support block (203a), and wherein the other end of the second spring (203d) is fixed to the mounting block (203c).

3. The device for detecting air permeability of a dialysis paper cover material according to claim 2, wherein: The auxiliary component (200) further includes a pressing member (204), the pressing member (204) including a positioning plate (204a), the positioning plate (204a) being fixed to one side of the upper pressure head (103), a fixing rod (204b) being inserted into the positioning plate (204a), the bottom end of the fixing rod (204b) being rotatably connected to a pressing wheel (204c) via a rotating shaft, a fixing block (204d) being fixed to the top end of the fixing rod (204b), a third spring (204e) being fixed to the bottom of the fixing block (204d), and the bottom end of the third spring (204e) being fixed to the fixing rod (204b).

4. The device for testing the air permeability of a dialysis paper cover material according to claim 3, wherein: The auxiliary component (200) further comprises a locking member (205), the locking member (205) comprising a stabilizing block (205a), the stabilizing block (205a) being fixed to one side of the support rod (201a), an inserting rod (205b) being inserted into the stabilizing block (205a), and a socket (201g-1) corresponding to the inserting rod (205b) being provided on the rotating column (201g).

5. The device for testing the air permeability of a dialysis paper cover material according to claim 4, wherein: A connecting block (205c) is fixed to one end of the insertion rod (205b), a fourth spring (205d) is fixed to one side of the connecting block (205c), the other end of the fourth spring (205d) is fixed to the stabilizing block (205a), an extrusion rod (205e) is fixed to the bottom of the support frame (102), and a force-bearing groove (205b-1) corresponding to the extrusion rod (205e) is provided on the insertion rod (205b).

6. The device for testing the air permeability of a dialysis paper cover material according to claim 5, wherein: A torsion spring (205f) is fixed to the outside of the rotating column (201g), the other end of the torsion spring (205f) is fixed to the support rod (201a), a fixing column (205g) is fixed to the bottom of the support rod (201a), the fixing column (205g) is L-shaped, and the other end of the fixing column (205g) contacts the rotating sleeve (201b) and supports the rotating sleeve (201b).

7. The device for testing the air permeability of a dialysis paper cover material according to claim 6, wherein: The auxiliary component (200) further comprises a limiting member (206), the limiting member (206) comprising a limiting column (206a), a chamber (201c-1) being provided on the rotating rod (201c), the limiting column (206a) being located in the chamber (201c-1), a limiting hole (201b-1) being provided on the rotating sleeve (201b), the limiting column (206a) being engaged with the limiting hole (201b-1), and a fifth spring (206b) being fixed to one end of the limiting column (206a).

8. The device for testing the air permeability of a dialysis paper cover material according to claim 7, wherein: There are a plurality of positioning limiting holes (201b-1), which are evenly distributed in a straight line on the rotating sleeve (201b).

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