A performance testing device for waterproof wound dressing

Abstract

The present invention relates to the technical field of bandage production, and specifically to a performance testing device for a waterproof bandage, comprising a base, on the upper end surface of which is fixedly mounted a water storage tank for implementing a water immersion test on the waterproof bandage, and a support block fixedly mounted on the rear side of the water storage tank, and the support block is provided with a testing mechanism for implementing a test on the waterproof performance of the waterproof bandage. Through the coordinated use of the testing mechanism, the bending mechanism and the fixing mechanism, the adhesion state of the waterproof bandage is adjusted during the dynamic spraying and static water immersion tests to more accurately simulate various environments that may be encountered in real life, thereby comprehensively evaluating the waterproof performance of the waterproof bandage under different use conditions and in different states, ensuring that the product quality meets different use requirements, and discovering potential problems that may occur in the actual use of the waterproof bandage during the test process, so as to optimize the product structure and improve the waterproof effect.

Description

Technical Field

[0001] The invention relates to the technical field of wound dressing production, in particular to a performance detection device for a waterproof wound dressing. Background Art

[0002] A waterproof bandage is a special bandage that uses waterproof materials and technology. It can effectively isolate moisture, prevent moisture and bacteria from entering the wound, and help the wound heal. The waterproof performance of the waterproof bandage directly affects the wound healing and the patient's comfort. Therefore, during the production process of waterproof bandages, waterproof performance testing is required to ensure that the waterproof bandage can maintain good adhesion and waterproofness in a humid environment.

[0003] The current method for testing the waterproof performance of waterproof bandages has the following disadvantages: 1. Workers are usually required to apply the selected samples to the corresponding positions, and then flush the attached waterproof bandages with water to test the waterproof performance of the waterproof bandages. However, the waterproof bandages may encounter water immersion and flushing at different angles during actual use. Therefore, spraying in a single direction cannot fully simulate the complex use environment of the waterproof bandages, resulting in deviations in the waterproof test results, and the tested results cannot truly reflect the waterproof effect of the waterproof bandages in actual use; 2. During the test, the waterproof bandages are applied on a flat surface for waterproof testing. During actual use, the waterproof bandages will be in a taut and contracted state due to the different tension states of human skin. Therefore, a single plane cannot accurately evaluate the waterproof performance of the waterproof bandages in actual use, and cannot evaluate the adhesion stability of the waterproof bandages on human skin. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a performance detection device for a waterproof wound patch, which is achieved by the following specific technical means:

[0005] A performance testing device for a waterproof wound patch comprises a base, wherein a water storage tank for performing a water immersion test on the waterproof wound patch and a support block fixedly mounted on the upper end surface of the base are provided with a testing mechanism for testing the waterproof performance of the waterproof wound patch; the testing mechanism comprises a lifting part arranged on the support block and used for adjusting the height of the waterproof wound patch, a spraying part for performing a dynamic spraying test on the waterproof wound patch is provided on the lifting part, and a recovery part is provided on the spraying part and the water storage tank.

[0006] The lifting part is provided with a bending mechanism, and the bending mechanism is provided with a fixing mechanism which cooperates with the bending mechanism and is used to perform convex and concave bending on the waterproof wound patch while fixing it; the bending mechanism includes a bending part provided on the lifting part, a driving part for providing power therefor is provided in the bending part, and a loading part for loading the waterproof wound patch and intuitively displaying its waterproof performance is provided on the bending part.

[0007] The fixing mechanism includes a fixing part arranged on the driving part and used to cooperate with the loading part to implement longitudinal and transverse switching and fixing of the curved part of the waterproof wound patch. The fixing part is provided with a locking part, and the locking part is provided with a guiding part providing guidance for convex bending and concave bending.

[0008] As a preferred technical solution of the present invention, the lifting part includes a limiting slide, a No. 1 screw, a first motor, an L-shaped slider and a support plate. The front end surface of the support block is provided with a limiting slide, a No. 1 screw is installed through a bearing in the limiting slide, an L-shaped slider threadedly connected to the No. 1 screw is slidably installed in the limiting slide, a support plate located above the water tank is fixedly installed on the upper end of the support block, and a first motor whose output end is fixedly connected to the No. 1 screw is fixedly installed on the support plate.

[0009] As a preferred technical solution of the present invention, the spraying part includes a rotating drum, a second motor, a connecting rod and a nozzle. The rotating drum is installed on the front end of the supporting plate through a bearing, and the second motor is fixedly installed on the supporting plate. The output end of the second motor is connected to the upper end of the rotating drum through a first transmission gear set. A special L-shaped connecting rod is fixedly installed on the lower end of the rotating drum, and a nozzle is fixedly installed on the connecting rod.

[0010] As a preferred technical solution of the present invention, the recovery part includes a liquid pump and a connecting pipe. The water storage tank is fixedly equipped with a liquid pump whose extraction end is connected to the interior thereof. The output end of the liquid pump is fixedly connected to a connecting pipe. The other end of the connecting pipe passes through the rotating drum and is connected to the nozzle. The connecting pipe is rotatably connected to the rotating drum.

[0011] As a preferred technical solution of the present invention, the bending portion includes an equipment bin, a first bidirectional screw, a first sliding rod, a second sliding rod and a second bidirectional screw. The L-shaped sliding block is fixedly installed with an equipment bin located in the water tank. The first bidirectional screw penetrating the left and right side walls is installed in the equipment bin through a bearing. The first sliding rod located above the first bidirectional screw is fixedly installed through the equipment bin. The second sliding rod located above the first sliding rod and cross-connected with the first sliding rod is fixedly installed through the equipment bin. The second bidirectional screw penetrating the front and rear side walls and located above the second sliding rod is installed in the equipment bin through a bearing.

[0012] As a preferred technical solution of the present invention, the driving part includes a third motor, a first supporting slider, a fourth motor and a second supporting slider. The third motor is fixedly installed in the equipment warehouse, and the output end of the third motor is transmission-connected to the first bidirectional screw by a second transmission gear set. The first slide bar is slidably installed with a first supporting slider that is symmetrical left and right and located outside the equipment warehouse, and the first supporting slider is threadedly connected to the first bidirectional screw. The fourth motor is fixedly installed in the equipment warehouse, and the output end of the fourth motor is transmission-connected to the second bidirectional screw by a third transmission gear set. The second slide bar is slidably installed with a second supporting slider that is symmetrical front and back and located outside the equipment warehouse, and the second supporting slider is threadedly connected to the second bidirectional screw.

[0013] As a preferred technical solution of the present invention, the fixed part includes a support frame, a fixed platform, a limit block, a splint and a No. 2 screw. The upper ends of the first supporting slider and the second supporting slider are fixedly installed with two supporting frames symmetrical about their center lines. A fixed platform is hinged between the two supporting frames through a torsion spring rod. The upper surfaces of the fixed platforms are fixedly installed with limit blocks. A side wall where the limit blocks on the front-to-back symmetrical second supporting slider are close to each other and a side wall where the limit blocks on the left-to-right symmetrical first supporting slider are close to each other are both provided with a first slideway. A No. 2 screw located in the first slideway is installed through a bearing in the limit block, and a splint threadedly connected to the No. 2 screw is slidably installed in the first slideway.

[0014] As a preferred technical solution of the present invention, the loading part includes a flexible loading plate, a placement groove and a sponge. The flexible loading plate is placed on the fixed platform of the left-right symmetrical first supporting slider. A placement groove is opened at the center of the flexible loading plate. A sponge is placed in the placement groove for intuitively demonstrating the waterproof performance of the waterproof bandage.

[0015] As a preferred technical solution of the present invention, the locking part includes a supporting cross column, a limiting disc and a socket. A side wall on which the limiting blocks on the second supporting slider that are symmetrical in front and back are away from each other and a side wall on which the limiting blocks on the first supporting slider that are symmetrical in left and right are away from each other are fixedly installed with a supporting cross column. Limiting discs are fixedly installed at both ends of the supporting cross column, and the limiting disc at one end is penetrated by two sockets distributed up and down.

[0016] As a preferred technical solution of the present invention, the guide part includes a turntable, a limit push rod, a matching hole and an insertion rod. The side wall away from the limit disk on the same supporting cross column is installed with a turntable through a bearing. The two turntables are fixedly installed with a push rod on the side away from the corresponding supporting cross column. The turntable is fixedly installed with a limit push rod symmetrical in upper and lower directions. The turntable is provided with a matching hole matching with the socket. The insertion rod passes through the matching hole and is plugged into the corresponding socket.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The performance testing device for the waterproof bandage adjusts the adhesion state of the waterproof bandage during the dynamic spray and static water immersion tests through the coordinated use of the testing mechanism, the bending mechanism and the fixing mechanism, so as to more accurately simulate various environments that may be encountered in real life, thereby comprehensively evaluating the waterproof performance of the waterproof bandage under different usage conditions and in different states, ensuring that the product quality meets different usage requirements, and discovering potential problems that may occur in the actual use of the waterproof bandage during the test process, so as to optimize the product structure of the waterproof bandage and improve the waterproof effect.

[0019] 2. The performance testing device of the waterproof bandage, through the set testing mechanism, adopts dynamic spraying and static water immersion to simulate the actual use state of the waterproof bandage, so as to test the waterproof performance of the waterproof bandage in actual use, so that the test result is closer to the performance of the waterproof bandage in actual use, and comprehensively evaluates the waterproof performance of the waterproof bandage under different conditions.

[0020] 3. The performance testing device of the waterproof wound patch performs convex and concave bending operations on the flexible carrier plate through the coordinated use of the bending mechanism and the fixing mechanism to simulate the tension and contraction state of human skin. By simulating the movement of human skin in different states, the waterproof performance of the waterproof wound patch in actual use can be more accurately evaluated. At the same time, the adhesion performance of the waterproof wound patch can also be tested to ensure the use effect of the waterproof wound patch. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention when it is working.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 3 It is a partial three-dimensional structural schematic diagram of the testing mechanism of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the material loading part of the present invention.

[0025] Figure 5 It is a schematic diagram of the internal three-dimensional structure of the bending mechanism of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixing part of the present invention.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the locking part and the guiding part of the present invention.

[0028] In the figure: 1, base; 2, water tank; 3, support block; 4, testing mechanism; 41, lifting part; 411, limit slide; 412, screw rod No. 1; 413, first motor; 414, L-shaped slider; 415, support plate; 42, spraying part; 421, rotating drum; 422, second motor; 423, connecting rod; 424, nozzle; 43, recovery part; 431, liquid pump; 432, connecting pipe; 5, bending mechanism; 51, bending part; 511, equipment compartment; 512, first bidirectional screw; 513, first slide rod; 514, second slide rod; 515, second bidirectional screw; 52. Driving unit; 521. Third motor; 522. First supporting slider; 523. Fourth motor; 524. Second supporting slider; 53. Loading unit; 531. Flexible loading plate; 532. Placement slot; 533. Sponge; 6. Fixing mechanism; 61. Fixing unit; 611. Support frame; 612. Fixing table; 613. Limiting block; 614. Clamp; 615. No. 2 screw; 62. Locking unit; 621. Supporting cross column; 622. Limiting disc; 623. Socket; 63. Guide unit; 631. Turntable; 632. Limiting push rod; 633. Matching hole; 634. Insert rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1 A performance testing device for a waterproof wound patch comprises a base 1, a water tank 2 for performing a water immersion test on the waterproof wound patch and a support block 3 fixedly mounted on the upper end surface of the base 1, wherein the support block 3 is provided with a testing mechanism 4 for testing the waterproof performance of the waterproof wound patch; the testing mechanism 4 comprises a lifting part 41 which is arranged on the support block 3 and is used to adjust the height of the waterproof wound patch, the lifting part 41 is provided with a spraying part 42 for performing a dynamic spraying test on the waterproof wound patch, and the spraying part 42 and the water tank 2 are provided with a recovery part 43 together.

[0031] See also Figure 1 and Figure 5The lifting part 41 is provided with a bending mechanism 5, and the bending mechanism 5 is provided with a fixing mechanism 6 which cooperates with the bending mechanism 5 and is used to perform convex bending and concave bending on the waterproof wound patch while fixing it; the bending mechanism 5 includes a bending part 51 provided on the lifting part 41, a driving part 52 for providing power therefor is provided in the bending part 51, and a loading part 53 for loading the waterproof wound patch and intuitively displaying its waterproof performance is provided on the bending part 51.

[0032] See also Figure 1 The fixing mechanism 6 includes a fixing portion 61 which is arranged on the driving portion 52 and is used to cooperate with the loading portion 53 to implement longitudinal and lateral switching and fixing of the curved portion of the waterproof wound patch. A locking portion 62 is arranged on the fixing portion 61, and a guiding portion 63 which provides guidance for convex bending and concave bending is arranged on the locking portion 62.

[0033] See also Figure 1 and Figure 2 The lifting part 41 includes a limiting slide 411, a No. 1 screw 412, a first motor 413, an L-shaped slider 414 and a supporting plate 415. The front end surface of the support block 3 is provided with a limiting slide 411, and a No. 1 screw 412 is installed through a bearing in the limiting slide 411. An L-shaped slider 414 threadedly connected to the No. 1 screw 412 is slidably installed in the limiting slide 411. A supporting plate 415 located above the water tank 2 is fixedly installed on the upper end of the support block 3, and a first motor 413 whose output end is fixedly connected to the No. 1 screw 412 is fixedly installed on the supporting plate 415.

[0034] See also Figure 1 , Figure 4 and Figure 5 The curved portion 51 includes an equipment bin 511, a first bidirectional screw 512, a first slide bar 513, a second slide bar 514 and a second bidirectional screw 515. The L-shaped slider 414 is fixedly installed with the equipment bin 511 located in the water tank 2. The first bidirectional screw 512 penetrating the left and right side walls is installed in the equipment bin 511 through a bearing. The first slide bar 513 located above the first bidirectional screw 512 is fixedly installed through the equipment bin 511. The second slide bar 514 located above the first slide bar 513 and cross-connected with the first slide bar 513 is fixedly installed through the equipment bin 511. The second bidirectional screw 515 penetrating the front and rear side walls and located above the second slide bar 514 is installed in the equipment bin 511 through a bearing.

[0035] See also Figure 1 and Figure 5The driving unit 52 includes a third motor 521, a first supporting slider 522, a fourth motor 523 and a second supporting slider 524. The third motor 521 is fixedly installed in the equipment warehouse 511, and the output end of the third motor 521 is transmission-connected to the first bidirectional screw 512 through a second transmission gear set. A first supporting slider 522 that is symmetrical left and right and located outside the equipment warehouse 511 is slidably installed on the first slide bar 513, and the first supporting slider 522 is threadedly connected to the first bidirectional screw 512. A fourth motor 523 is fixedly installed in the equipment warehouse 511, and the output end of the fourth motor 523 is transmission-connected to the second bidirectional screw 515 through a third transmission gear set. A second supporting slider 524 that is symmetrical front and back and located outside the equipment warehouse 511 is slidably installed on the second slide bar 514, and the second supporting slider 524 is threadedly connected to the second bidirectional screw 515.

[0036] See also Figure 1 , Figure 5 and Figure 6 The fixing part 61 includes a support frame 611, a fixing platform 612, a limit block 613, a clamping plate 614 and a No. 2 screw 615. The upper ends of the first supporting slider 522 and the second supporting slider 524 are fixedly installed with two support frames 611 symmetrical about their center lines. A fixed platform 612 is hinged between the two supporting frames 611 through a torsion spring rod. The upper end surfaces of the fixed platforms 612 are fixedly installed with limit blocks 613. A side wall where the limit blocks 613 on the front-to-back symmetrical second supporting slider 524 are close to each other and a side wall where the limit blocks 613 on the left-to-right symmetrical first supporting slider 522 are close to each other are both provided with a first slideway. A No. 2 screw 615 located in the first slideway is installed through a bearing in the limit block 613, and a clamping plate 614 threadedly connected to the No. 2 screw 615 is slidably installed in the first slideway.

[0037] See also Figure 1 and Figure 4 The loading part 53 includes a flexible loading plate 531, a placement groove 532 and a sponge 533. The flexible loading plate 531 is placed on the fixed platform 612 of the left-right symmetrical first supporting slider 522. A placement groove 532 is opened at the center of the flexible loading plate 531. A sponge 533 is placed in the placement groove 532 for intuitively demonstrating the waterproof performance of the waterproof wound dressing.

[0038] During specific work, when it is necessary to test the waterproof performance of the waterproof bandage, the worker first puts the sponge 533 into the placement groove 532, and then adheres the waterproof bandage to be tested to the flexible carrier plate 531, and makes its center part completely cover the placement groove 532. At this time, the third motor 521 can be started to rotate the first bidirectional screw 512 through the second transmission gear set, thereby bringing the left and right symmetrical first supporting sliders 522 closer to each other until the flexible carrier plate 531 can be placed above the two left and right symmetrical fixed platforms 612, and the third motor 521 can be stopped at this time.

[0039] Then the worker uses an electric rotary tool to rotate the No. 2 screw 615 to make it descend with the splint 614, so that each splint 614 fixes the left and right sides of the flexible loading plate 531 on the corresponding fixed platform 612 respectively, thereby completing the preliminary preparations. At this time, the fourth motor 523 is in an unstarted state, and the front and rear symmetrical second supporting slider 524 is in a position away from the flexible loading plate 531.

[0040] See also Figure 1 , Figure 6 and Figure 7 The locking portion 62 includes a supporting cross column 621, a limiting disc 622 and a socket 623. A side wall on which the limiting blocks 613 on the second supporting slider 524 that are symmetrical in front and back are away from each other and a side wall on which the limiting blocks 613 on the first supporting slider 522 that are symmetrical in left and right are away from each other are fixedly installed with a supporting cross column 621. Limiting discs 622 are fixedly installed at both ends of the supporting cross column 621, and two sockets 623 distributed up and down are opened through the limiting disc 622 at one end.

[0041] See also Figure 1 and Figure 7 The guide portion 63 includes a turntable 631, a limiting push rod 632, a matching hole 633 and an insertion rod 634. The side wall away from the limiting disc 622 on the same supporting horizontal column 621 is equipped with a turntable 631 through a bearing. A push rod is fixedly installed on the side of the two turntables 631 away from the corresponding supporting horizontal column 621. The turntables 631 are fixedly equipped with limiting push rods 632 symmetrically installed in the upper and lower directions. The turntable 631 is provided with a matching hole 633 that matches the insertion hole 623. The insertion rod 634 passes through the matching hole 633 and is plugged into the corresponding insertion hole 623.

[0042] During the specific work, after the fixing part 61 and the bending mechanism 5 have completed the preparation work, the worker presses down the push rods on the left and right symmetrical first supporting sliders 522 respectively, so that it rotates with the corresponding turntable 631, thereby rotating the limiting push rod 632 at the bottom upward until the limiting push rod 632 can press upward against the lower end surface of the flexible loading plate 531. At this time, the matching hole 633 on the turntable 631 is in a coaxial position with the corresponding insertion hole 623, and the insertion rod 634 is inserted into the insertion hole 623 through the matching hole 633, so as to lock the turntable 631 on the limiting disc 622, and the limiting push rod 632 on the other side presses upward against the other side of the lower end surface of the flexible loading plate 531 in the same way.

[0043] Then, the third motor 521 is started to bring the first supporting sliders 522 on both sides closer to each other, thereby squeezing the flexible carrier plate 531 to make it bend, and the limiting push rods 632 on the left and right sides press upward to provide guidance for the flexible carrier plate 531, so that the flexible carrier plate 531 can only bend convexly, and the flexible carrier plate 531 will tighten the waterproof bandage adhered to its surface, so as to simulate the movement of human joints or active parts when stretched. At this time, the waterproof performance of the waterproof bandage in this state can be tested through the cooperation of the testing mechanism 4 and the water storage tank 2.

[0044] After the convex bending test is completed, the insertion rod 634 is pulled out to release the lock of the turntable 631, and the push rod is lifted upward to bring the upper limit push rod 632 to press downward the upper end surface of the flexible loading plate 531, and the insertion rod 634 is inserted again after the pressing to lock the turntable 631. At this time, the third motor 521 can be started again, and the upper limit push rod 632 will press downward to provide guidance for the flexible loading plate 531, so that when the first supporting sliders 522 on both sides are close to each other, the flexible loading plate 531 can only be concavely bent. At this time, the flexible loading plate 531 will shrink the waterproof wound patch adhered to its surface, thereby simulating the state of the wound patch at the skin wrinkle. Then, by the same token, the waterproof performance of the waterproof wound patch is tested through the cooperation of the testing mechanism 4 and the water storage tank 2 to simulate the tension and contraction state of human skin. The waterproof performance of the waterproof wound patch in actual use can be more accurately evaluated, and the adhesion performance of the waterproof wound patch can be tested to ensure the use effect of the waterproof wound patch.

[0045] After the left and right lateral waterproof test is completed, the worker uses an electric rotary tool to rotate the No. 2 screw 615 on the left and right sides to release the fixation of the corresponding fixing part 61 on the flexible loading plate 531, and reversely starts the third motor 521 to make the first supporting sliders 522 on the left and right sides move away from each other, and at the same time starts the fourth motor 523 to make the front and rear symmetrical second supporting sliders 524 approach each other, and then completes the front and rear longitudinal waterproof test with the cooperation of the bending mechanism 5 and the fixing mechanism 6.

[0046] See also Figure 1 , Figure 2 and Figure 3 The spraying part 42 includes a rotating drum 421, a second motor 422, a connecting rod 423 and a nozzle 424. The rotating drum 421 is installed through the bearing at the front end of the supporting plate 415. The second motor 422 is fixedly installed on the supporting plate 415. The output end of the second motor 422 is connected to the upper end of the rotating drum 421 through a first transmission gear set. The lower end of the rotating drum 421 is fixedly installed with a connecting rod 423 in an L-shape, and the nozzle 424 is fixedly installed on the connecting rod 423.

[0047] See also Figure 1 , Figure 2 and Figure 3 The recovery part 43 includes a liquid pump 431 and a connecting pipe 432. The liquid pump 431 whose extraction end is connected to the interior of the water storage tank 2 is fixedly installed. The output end of the liquid pump 431 is fixedly connected to the connecting pipe 432. The other end of the connecting pipe 432 passes through the rotating drum 421 and is connected to the nozzle 424. The connecting pipe 432 is rotatably connected to the rotating drum 421.

[0048] During specific operation, when it is necessary to perform a dynamic spray waterproof test on the waterproof wound patch, the first motor 413 is in an unstarted state, so that the L-shaped slider 414 drives the flexible carrier plate 531 supported by the bending mechanism 5 and the fixing mechanism 6 to be located above the water tank 2. At this time, the second motor 422 and the liquid pump 431 can be started. The liquid pump 431 extracts the liquid in the water tank 2 and injects it into the nozzle 424 through the connecting pipe 432. The second motor 422 drives the rotating drum 421 to rotate through the first transmission gear set, thereby driving the nozzle 424 to continuously rotate through the connecting rod 423 and performing a spray test on the waterproof wound patch on the flexible carrier plate 531. During the test, the state of the waterproof wound patch on the flexible carrier plate 531 can be adjusted through the bending mechanism 5 and the fixing mechanism 6, so as to perform spray waterproof tests under different states.

[0049] When it is necessary to perform a static water immersion waterproof test on the waterproof bandage, the first motor 413 is started to immerse the flexible carrier plate 531 into the water tank 2. At this time, the state of the waterproof bandage on the flexible carrier plate 531 is adjusted by the bending mechanism 5 and the fixing mechanism 6, so as to perform water immersion waterproof tests on it under different states, and comprehensively evaluate the waterproof performance of the waterproof bandage under different conditions.

[0050] During the above test process, after each test is completed, it is necessary to observe whether the sponge 533 in the placement groove 532 absorbs water. If water is absorbed, it means that the waterproof performance of the waterproof bandage in this simulated state is poor. Otherwise, it means that the waterproof performance of the waterproof bandage in this simulated state is qualified.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A performance testing device for a waterproof wound patch, comprising a base (1), characterized in that: A water reservoir (2) for carrying out a water immersion test on the waterproof wound patch and a support block (3) fixedly mounted on the upper end surface of the base (1) are provided at the rear side of the water reservoir (2); a testing mechanism (4) for carrying out a water immersion test on the waterproof wound patch is provided on the support block (3); The testing mechanism (4) comprises a lifting part (41) arranged on the supporting block (3) and used for adjusting the height of the waterproof wound patch; a spraying part (42) for performing a dynamic spraying test on the waterproof wound patch is arranged on the lifting part (41); and a recovery part (43) is arranged on the spraying part (42) and the water storage tank (2); The lifting part (41) is provided with a bending mechanism (5), and the bending mechanism (5) is provided with a fixing mechanism (6) which cooperates with the bending mechanism (5) and is used to perform convex bending and concave bending on the waterproof wound patch while fixing it; The bending mechanism (5) comprises a bending portion (51) arranged on the lifting portion (41), a driving portion (52) for providing power to the bending portion (51) being arranged inside the bending portion (51), and a loading portion (53) for loading a waterproof wound patch and visually displaying its waterproof performance being arranged on the bending portion (51); The fixing mechanism (6) comprises a fixing part (61) arranged on the driving part (52) and used to cooperate with the loading part (53) to implement longitudinal and transverse switching and fixing of the curved part of the waterproof wound patch, the fixing part (61) is provided with a locking part (62), and the locking part (62) is provided with a guiding part (63) for providing guidance for convex bending and concave bending.

2. The performance testing device for a waterproof wound patch according to claim 1, characterized in that: The lifting part (41) comprises a limiting slideway (411), a first screw rod (412), a first motor (413), an L-shaped slider (414) and a supporting plate (415); the front end surface of the supporting block (3) is provided with a limiting slideway (411); a first screw rod (412) is installed in the limiting slideway (411) through a bearing; an L-shaped slider (414) threadedly connected to the first screw rod (412) is slidably installed in the limiting slideway (411); a supporting plate (415) located above the water storage tank (2) is fixedly installed at the upper end of the supporting block (3); and a first motor (413) whose output end is fixedly connected to the first screw rod (412) is fixedly installed on the supporting plate (415).

3. The performance testing device for a waterproof wound patch according to claim 2, characterized in that: The spraying part (42) comprises a rotating drum (421), a second motor (422), a connecting rod (423) and a spray head (424); the rotating drum (421) is installed on the front end of the supporting plate (415) through a bearing, the second motor (422) is fixedly installed on the supporting plate (415), the output end of the second motor (422) is connected to the upper end of the rotating drum (421) through a first transmission gear set, the lower end of the rotating drum (421) is fixedly installed with a connecting rod (423) in a special L shape, and the spray head (424) is fixedly installed on the connecting rod (423).

4. The performance testing device for a waterproof wound patch according to claim 3, characterized in that: The recovery part (43) comprises a liquid pump (431) and a connecting pipe (432); the liquid pump (431) whose extraction end is connected to the interior of the water storage tank (2) is fixedly installed on the water storage tank (2); the output end of the liquid pump (431) is fixedly connected to the connecting pipe (432); the other end of the connecting pipe (432) passes through the rotating drum (421) and is connected to the nozzle (424); the connecting pipe (432) is rotatably connected to the rotating drum (421).

5. The performance testing device for a waterproof wound patch according to claim 2, characterized in that: The curved portion (51) comprises an equipment bin (511), a first bidirectional screw rod (512), a first slide bar (513), a second slide bar (514) and a second bidirectional screw rod (515); the equipment bin (511) located in the water storage tank (2) is fixedly mounted on the L-shaped slide block (414); the first bidirectional screw rod (512) penetrating the left and right side walls of the equipment bin (511) is installed in the equipment bin (511) via a bearing; the first slide bar (513) located above the first bidirectional screw rod (512) is fixedly mounted in the equipment bin (511); the second slide bar (514) located above the first slide bar (513) and cross-connected with the first slide bar (513) is fixedly mounted in the equipment bin (511); the second bidirectional screw rod (515) penetrating the front and rear side walls of the equipment bin (511) and located above the second slide bar (514) is installed in the equipment bin (511) via a bearing.

6. The performance testing device for a waterproof wound patch according to claim 5, characterized in that: The driving part (52) comprises a third motor (521), a first supporting slider (522), a fourth motor (523) and a second supporting slider (524); the third motor (521) is fixedly installed in the equipment bin (511); the output end of the third motor (521) is connected to the first bidirectional screw rod (512) by a second transmission gear set; the first slider (513) is slidably installed with a first supporting slider (522) which is symmetrical left and right and located outside the equipment bin (511); the first supporting slider (522) is threadedly connected to the first bidirectional screw rod (512); the fourth motor (523) is fixedly installed in the equipment bin (511); the output end of the fourth motor (523) is connected to the second bidirectional screw rod (515) by a third transmission gear set; the second slider (514) is slidably installed with a second supporting slider (524) which is symmetrical front and back and located outside the equipment bin (511); the second supporting slider (524) is threadedly connected to the second bidirectional screw rod (515).

7. The performance testing device for a waterproof wound patch according to claim 6, characterized in that: The fixing part (61) comprises a support frame (611), a fixing platform (612), a limit block (613), a clamping plate (614) and a second screw rod (615); the upper ends of the first supporting slider (522) and the second supporting slider (524) are both fixedly installed with two support frames (611) symmetrical about their center lines; a fixing platform (612) is hingedly connected between the two supporting frames (611) via a torsion spring rod; the upper end surfaces of the fixing platforms (612) are both fixedly installed with limit blocks (613); a side wall of the limit blocks (613) on the front-back symmetrical second supporting slider (524) close to each other and a side wall of the limit blocks (613) on the left-right symmetrical first supporting slider (522) close to each other are both provided with a first slideway; a second screw rod (615) located in the first slideway is installed through the limit block (613) via a bearing; a clamping plate (614) threadedly connected to the second screw rod (615) is slidably installed in the first slideway.

8. The performance testing device for a waterproof wound patch according to claim 7, characterized in that: The material loading portion (53) comprises a flexible material loading plate (531), a placement groove (532) and a sponge (533); the flexible material loading plate (531) is placed on the fixed platform (612) of the left-right symmetrical first supporting slider (522); a placement groove (532) is provided at the center of the flexible material loading plate (531); and a sponge (533) for intuitively displaying the waterproof performance of the waterproof wound patch is placed in the placement groove (532).

9. The performance testing device for a waterproof wound patch according to claim 7, characterized in that: The locking portion (62) comprises a supporting cross column (621), a limiting disc (622) and an insertion hole (623); a side wall of the limiting blocks (613) on the second supporting slider (524) that are symmetrical in front and back and away from each other and a side wall of the limiting blocks (613) on the first supporting slider (522) that are symmetrical in left and right are both fixedly mounted with the supporting cross column (621); limiting discs (622) are fixedly mounted at both ends of the supporting cross column (621); and two insertion holes (623) distributed up and down are penetrated through the limiting disc (622) at one end.

10. The performance testing device for a waterproof wound patch according to claim 9, characterized in that: The guide portion (63) comprises a rotating disk (631), a limiting push rod (632), a matching hole (633) and an insert rod (634); a rotating disk (631) is installed on a side wall of the limiting disk (622) on the same supporting horizontal column (621) via a bearing; a push rod is fixedly installed on the side of the two rotating disks (631) away from the corresponding supporting horizontal column (621); a limiting push rod (632) symmetrically installed up and down is fixedly installed on the rotating disk (631); a matching hole (633) matching with the insert hole (623) is opened on the rotating disk (631); and the insert rod (634) is inserted into the corresponding insert hole (623) after passing through the matching hole (633).

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