A synthetic leather hydrolysis resistance accelerated test water bath device

Abstract

The application provides a synthetic leather hydrolysis resistance accelerated test water bath device, and relates to the technical field of water bath devices.The device comprises a heating water bath and beakers, a water bath tank is formed in the top of the heating water bath, detachable equal division fixing mechanisms are arranged in the water bath tank, the internal alkali solution capacity of multiple groups of beakers can be automatically equalized, operation errors generated by manual solution preparation are eliminated, and the reaction conditions of test samples in each group are consistent; meanwhile, the mechanisms can position and fix the multiple groups of beakers, and unify the water bath placement height of the beakers, so that the problems of beaker deviation and dumping caused by water bath fluctuation and buoyancy are reduced, the heating and hydrolysis environment of samples in each group is completely consistent, the accuracy, stability and comparability of parallel test data are greatly improved, in addition, the device is convenient to disassemble and assemble, has high universality, the water bath temperature can be stabilized by cooperating with a cover plate, and the overall test efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of water bath device technology, and in particular to a water bath device for accelerating the hydrolysis resistance test of synthetic leather. Background Technology

[0002] Synthetic leather (including polyurethane artificial leather and polyurethane synthetic leather) undergoes hydrolytic aging during use due to environmental humidity and heat. This manifests as surface stickiness, color changes, cracking, delamination, and a decline in mechanical properties, severely impacting the material's lifespan. Therefore, hydrolytic resistance is one of the important indicators for evaluating the quality of synthetic leather products.

[0003] When testing the hydrolysis resistance of synthetic leather, several beakers containing alkali solution are taken, and the synthetic leather sample is immersed in the alkali solution. The beakers are then placed together in a water bath for heating. During the test, the alkali content and concentration in the multiple beakers within the same water bath must be consistent. Currently, in practice, the alkali solution is mainly distributed manually. Analytical grade NaOH reagent and distilled water are used to prepare a 10% NaOH solution in the beakers, which is then stirred evenly with a glass rod. After the alkali solution is completely dissolved, cooled, and allowed to stand, the operator uses a graduated cylinder or other conventional glass measuring instrument to measure a specified volume (e.g., 100 ml as mentioned in some test protocols) of the alkali solution, and then pours it into each of the high-temperature resistant containers (such as beakers) used for the test. The consistency of the alkali solution volume in each beaker depends entirely on the operator's skill and visual judgment. There is indeed a possibility of error due to human operation, which may affect the results of the hydrolysis resistance test on synthetic leather. Summary of the Invention

[0004] Based on the technical problems existing in the background art, the present invention proposes a water bath device for accelerating the hydrolysis resistance test of synthetic leather.

[0005] The present invention proposes a water bath device for accelerating hydrolysis resistance testing of synthetic leather, comprising a heating water bath machine and a beaker. The top of the heating water bath machine is provided with a water bath tank, and a cover plate that can be rotatably installed on the heating water bath machine to seal the top opening of the water bath tank is also provided.

[0006] The water bath is detachably equipped with a uniform distribution and fixing mechanism, which can keep the amount of alkali solution in multiple beakers consistent, fix the multiple beakers in the position in the water bath, and ensure that the multiple beakers are at the same height in the water bath.

[0007] Preferably, the beaker includes a beaker body, a connecting tube, and a sealing mechanism; the connecting tube is connected to one side of the bottom of the beaker body, and the sealing mechanism is capable of sealing the connecting tube.

[0008] Preferably, the equal distribution fixing mechanism includes a functional block, a fixing structure, a flow control structure, and a lifting structure; the functional block is set in a water bath, and the functional block has a communication port adapted to the communication pipe on all four sides; the functional block has a communication chamber connecting multiple communication ports; and the flow control structure can control the opening and closing of the sealing mechanism.

[0009] The fixing structure is used to fix the cup body to the side of the functional block.

[0010] The lifting structure is used to drive the functional block and multiple cups to move up and down synchronously in the water bath.

[0011] Preferably, the sealing mechanism includes a sealing plug, a first straight rod, and a sealing spring; the connecting pipe is provided with a channel of a small diameter section, a conical section, and a large diameter section; the sealing plug is composed of a cylinder and a frustum; the diameter of the cylindrical section of the sealing plug is the same as the inner diameter of the small diameter section in the connecting pipe, and the cylindrical section of the sealing plug can be inserted into the small diameter section of the connecting pipe; the maximum diameter of the frustum section of the sealing plug is smaller than the inner diameter of the large diameter section; a first bracket is installed in the large diameter section of the connecting pipe; one end of the first straight rod is connected to the sealing plug; the other end of the first straight rod slides through the first bracket; the sealing spring is fitted on the first straight rod, and both ends of the sealing spring abut against the end of the sealing plug and the first bracket, respectively.

[0012] Preferably, the flow control structure includes a drive rod, a return spring, and a drive component; multiple second brackets are installed in the communicating chamber, the number of the multiple second brackets being the same as the number of communicating ports and arranged in a one-to-one correspondence; the drive rod slides through the second bracket, and a boss is connected to the outer circumference of the drive rod; the return spring is fitted on the drive rod, and both ends of the return spring abut against the second bracket and the boss respectively; one end of the drive rod can abut against the end of the sealing block.

[0013] The driving component is used to drive the driving rod to slide on the second bracket.

[0014] Preferably, the driving component includes a driving disk, which is rotatably mounted in the communicating cavity. The outer periphery of the driving disk is provided with a plurality of inclined sliding grooves. The number of inclined sliding grooves is the same as the number of driving rods and they are arranged in a one-to-one correspondence. The other end of the driving rod slides in cooperation with the inclined surface of the inclined sliding groove.

[0015] Preferably, the fixing component structure includes a bracket and a clamping component; the bracket is connected to the side of the functional block, the cup is placed on the bracket, and the clamping component can drive the connecting tube to be inserted into the connecting port and clamp the cup.

[0016] Preferably, the clamping assembly includes a telescopic rod, a clamping block, and a clamping spring; the bracket has a telescopic hole at the end away from the functional block that slides with the telescopic rod, the clamping block is connected to the side of the telescopic rod away from the functional block, the clamping block can abut against the outer periphery of the cup body, and the clamping spring is disposed in the telescopic hole and is used to drive the telescopic rod to retract in the telescopic hole.

[0017] Preferably, the lifting structure includes a mounting block, a lifting column, and a height control component; the bottom inner wall of the water bath has a mounting groove adapted to the mounting block, the top of the mounting block has a lifting groove that slides with the lifting column, and the top of the lifting column is connected to the bottom surface of the functional block.

[0018] The height control component is used to fix the position of the lifting column on the mounting block.

[0019] Preferably, the height control component includes a control rod, a gravity block, and a side block; one end of the control rod passes through the functional block, the drive plate, the lifting column, and the mounting block and is connected to the gravity block; the side block is connected to the outer periphery of the control rod; and the bottom of the mounting block has an L-shaped groove that slides with the side block.

[0020] The water bath device for accelerating hydrolysis resistance testing of synthetic leather proposed in this invention has the following beneficial effects: By setting a detachable equalization and fixing mechanism in the water bath, the alkali solution volume inside multiple beakers can be automatically equalized, eliminating operational errors caused by manual solution preparation and ensuring consistent reaction conditions for each group of test samples; at the same time, the mechanism can position and fix multiple beakers and unify the placement height of the beakers in the water bath, reducing problems such as beaker displacement and tipping caused by water bath fluctuations and buoyancy, ensuring that the heating and hydrolysis environment of each group of samples is completely consistent, and significantly improving the accuracy, stability and comparability of parallel test data; in addition, the device is easy to assemble and disassemble, has strong versatility, and can stabilize the water bath temperature with the cover plate, improving the overall testing efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a water bath device for accelerating hydrolysis resistance testing of synthetic leather proposed in this invention.

[0022] Figure 2 This is a schematic diagram of the beaker structure in a water bath device for accelerating hydrolysis resistance testing of synthetic leather proposed in this invention.

[0023] Figure 3 This is a side sectional view of the water bath device for accelerating hydrolysis resistance testing of synthetic leather proposed in this invention, with the beaker installed.

[0024] Figure 4 This is a schematic diagram of the uniform distribution and fixing mechanism in a water bath device for accelerating hydrolysis resistance testing of synthetic leather proposed in this invention.

[0025] Figure 5 This is a side cross-sectional view of a water bath device for accelerating hydrolysis resistance testing of synthetic leather, as proposed in this invention, when holding a beaker.

[0026] Figure 6 This is a side sectional view of a functional block in a water bath device for accelerating hydrolysis resistance testing of synthetic leather, as proposed in this invention.

[0027] Figure 7 This is a side cross-sectional view of the connecting pipe in a water bath device for accelerating hydrolysis resistance testing of synthetic leather proposed in this invention.

[0028] Figure 8 This is a top cross-sectional view of a functional block in a water bath device for accelerating hydrolysis resistance testing of synthetic leather, as proposed in this invention.

[0029] Figure 9 This is a schematic diagram of the L-shaped slot in a water bath device for accelerating hydrolysis resistance testing of synthetic leather proposed in this invention.

[0030] In the diagram: 1. Heating water bath; 2. Cup body; 3. Connecting pipe; 4. Functional block; 5. Connecting port; 6. Connecting chamber; 7. Sealing plug; 8. Straight rod No. 1; 9. Sealing spring; 10. Drive rod; 11. Return spring; 12. Drive disc; 13. Bracket; 14. Telescopic rod; 15. Clamping block; 16. Clamping spring; 17. Mounting block; 18. Lifting column; 19. Control rod; 20. Gravity block; 21. Side block; 22. L-shaped slot. Detailed Implementation

[0031] Reference Figures 1-9 This invention proposes a water bath device for accelerating hydrolysis resistance testing of synthetic leather, including a heating water bath machine 1 and beakers. The heating water bath machine 1 has a water bath tank on its top. A cover plate is rotatably installed on the heating water bath machine 1 to seal the opening at the top of the water bath tank. After the cover plate rotates, it can completely cover the opening at the top of the water bath tank, reducing heat loss during the water bath heating process and maintaining a stable water bath temperature. In practice, the beakers also need to be covered. A uniform distribution and fixing mechanism is detachably installed inside the water bath tank. The uniform distribution and fixing mechanism can ensure that the amount of alkali solution in multiple beakers is consistent. The uniform distribution and fixing mechanism can also fix the multiple beakers in the position within the water bath tank and ensure that the multiple beakers are at the same height in the water bath tank. In practice, the uniform distribution and fixing mechanism ensures that the multiple beakers are at the same height in the water bath tank, while ensuring that the amount of alkali solution in the multiple beakers is consistent. It can also fix the beakers in the water bath tank so that the water level in the water bath tank is higher than the water level in the beakers, thereby ensuring the heating effect of the alkali solution and reducing the impact of buoyancy on the beakers.

[0032] like Figure 2 and Figure 5As shown, the beaker includes a body 2, a connecting tube 3, and a sealing mechanism. The connecting tube 3 is connected to the bottom side of the body 2, and the sealing mechanism can seal the connecting tube 3. In actual use, the concentration of the alkali solution needs to be consistent in the same test, and the amount of alkali solution in each body 2 also needs to be consistent. Therefore, multiple bodies 2 are connected to each other through the connecting tube 3. The atmospheric pressure makes the alkali solution level in multiple bodies 2 the same height. Since the height of multiple bodies 2 is the same, the amount of alkali solution in each body 2 is the same. Then, the connecting tube 3 is sealed by the sealing mechanism, so that multiple bodies 2 are in a relatively independent state. Then, the synthetic leather sample is placed in each body 2 to avoid mutual interference and ensure the test results.

[0033] like Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, the evenly distributed fixing mechanism includes a functional block 4, a fixing structure, a flow control structure, and a lifting structure. The functional block 4 is set inside the water bath. The top view of the functional block 4 is a regular polygon. The appropriate polygonal functional block 4 is selected according to the actual situation. Each of the four sides of the functional block 4 has a connecting port 5 that matches the connecting pipe 3. A sealing structure is provided between the connecting pipe 3 and the connecting port 5 to ensure that the connecting pipe 3 is sealed when inserted into the connecting port 5, ensuring that the water and alkaline solutions from the outside do not communicate. The functional block 4 has a connecting chamber 6 that connects multiple connecting ports 5. The flow control structure can control the opening and closing of the sealing mechanism. The fixing structure is used to fix the cup 2 to the side of the functional block 4. The lifting structure is used to drive the functional block 4 and multiple cups 2 to move synchronously up and down in the water bath. In actual use, the functional block is first lifted by the lifting structure. 4. Raise the cups to above the water surface in the water bath, then insert the connecting pipe 3 into the connecting port 5. Install multiple cups 2 around the functional block 4 and fix them in place using the fixing structure. Open the sealing mechanism through the flow control structure so that the multiple cups 2 are interconnected. Pour alkaline solution into one of the cups 2. Through atmospheric pressure, the alkaline solution in the multiple cups 2 is at the same level, ensuring that the amount of alkaline solution in the cups 2 is consistent. Then close the sealing mechanism so that the multiple cups 2 are independent of each other, reducing the error in experimental results caused by the different amounts of alkaline solution in each cup 2. Then lower the multiple cups 2 synchronously through the lifting structure, immersing them in the alkaline solution so that the alkaline solution level in the cups 2 is lower than the water surface in the water bath. Finally, put the lid on the cups 2 to cover the water bath.

[0034] like Figure 5 , Figure 6 and Figure 7As shown, the sealing mechanism includes a sealing plug 7, a first straight rod 8, and a sealing spring 9. The connecting pipe 3 has a channel with a small diameter section, a conical section, and a large diameter section. The sealing plug 7 consists of a cylinder and a frustum. The diameter of the cylindrical section of the sealing plug 7 is the same as the inner diameter of the small diameter section in the connecting pipe 3, and the cylindrical section of the sealing plug 7 can be inserted into the small diameter section of the connecting pipe 3. The maximum diameter of the frustum section of the sealing plug 7 is smaller than the inner diameter of the large diameter section. A first bracket is installed in the large diameter section of the connecting pipe 3. One end of the first straight rod 8 is connected to the sealing plug 7, and the other end of the first straight rod 8 slides through the first bracket, which restricts the movement of the first straight rod 8. The movement path is optimized to reduce the deviation of the sealing plug 7 within the connecting pipe 3. The sealing spring 9 is mounted on the first straight rod 8, and both ends of the sealing spring 9 abut against the end of the sealing plug 7 and the first bracket, respectively. The rebound action of the sealing spring 9 drives the sealing plug 7 to seal the connecting pipe 3. In actual use, when the connecting pipe 3 is inserted into the connecting port 5, the cylindrical section of the sealing plug 7 moves within the small diameter section of the connecting pipe 3, and the connecting pipe 3 will not be opened. The connecting pipe 3 will only be opened after it has been inserted into the connecting port 5 for a certain distance, or it will be sealed before the connecting pipe 3 is removed from the connecting port 5.

[0035] like Figure 3 , Figure 5 , Figure 6 and Figure 8 As shown, the flow control structure includes a drive rod 10, a return spring 11, and a drive component. Multiple secondary supports are installed within the communicating chamber 6, with the number of secondary supports matching the number of communicating ports 5. The drive rod 10 slides through the secondary supports, which restrict the movement trajectory of the drive rod 10, ensuring it maintains a straight-line sliding motion. A boss is circumferentially connected to the outer periphery of the drive rod 10. The return spring 11 is fitted onto the drive rod 10, with both ends abutting against the secondary supports and the boss, respectively. One end of the drive rod 10 can abut against the end of the sealing plug 7. The drive component is used to drive... The drive rod 10 slides on the second bracket. In actual use, the drive component drives the drive rod 10 to slide on the second bracket, overcoming the rebound effect of the return spring 11. This causes the end of the drive rod 10 to abut against the end of the sealing plug 7, and drives the sealing plug 7 to move laterally and open the connecting pipe 3, maintaining the connection between the multiple cups 2. When it is necessary to block the connecting pipe 3, the drive rod 10 is not driven by the drive component. Under the rebound effect of the return spring 11, the drive rod 10 slides back to its original position. The sealing plug 7 is not pushed by the drive rod 10, thus the sealing plug 7 resets and blocks the connecting pipe 3.

[0036] like Figure 6 and Figure 8As shown, the driving component includes a driving disk 12, which is rotatably installed in the communicating chamber 6. The outer periphery of the driving disk 12 is provided with multiple inclined sliding grooves. The number of inclined sliding grooves is the same as the number of driving rods 10 and they are set one by one. The other end of the driving rod 10 slides in cooperation with the inclined surface of the inclined sliding groove. In actual use, by rotating the driving disk 12, the inclined surface of the inclined sliding groove and the other end of the driving rod 10 slide in cooperation, thereby driving the driving rod 10 to slide on the second bracket, thereby pushing the sealing plug 7 to open the communicating pipe 3. The operation is simple and convenient.

[0037] like Figure 3 , Figure 4 and Figure 5 As shown, the fixing component structure includes a bracket 13 and a clamping component. The bracket 13 is connected to the side of the functional block 4. The cup body 2 is placed on the bracket 13. The clamping component can drive the connecting tube 3 into the connecting port 5 and clamp the cup body 2. In actual use, the cup body 2 is placed on the bracket 13 and the connecting tube 3 is aligned with the connecting port 5. Under the action of the clamping component, the connecting tube 3 is always inserted into the connecting port 5 and clamped and fixed to the cup body 2, ensuring the stability of the cup body 2 during the experiment in the water bath and reducing the possibility of the cup body 2 shaking or even tipping over during the experiment (the liquid level in the cup body 2 is kept lower than the liquid level in the water bath, and the cup body 2 is affected by the buoyancy of the water in the water bath), ensuring the experiment can proceed.

[0038] like Figure 4 and Figure 5 As shown, the clamping assembly includes a telescopic rod 14, a clamping block 15, and a clamping spring 16. The bracket 13 has a telescopic hole at the end away from the functional block 4 that slides with the telescopic rod 14. The clamping block 15 is connected to the side of the telescopic rod 14 away from the functional block 4. The clamping block 15 can abut against the outer periphery of the cup body 2. The clamping spring 16 is set in the telescopic hole and is used to drive the telescopic rod 14 to retract in the telescopic hole. In actual use, the clamping spring 16 drives the telescopic rod 14 to slide and retract in the telescopic hole, and then the telescopic rod 14 drives the clamping block 15 to abut against the side of the cup body 2, ensuring that the connecting tube 3 is always inserted into the connecting port 5, and clamping and fixing the cup body 2.

[0039] like Figure 3 and Figure 4As shown, the lifting structure includes a mounting block 17, a lifting column 18, and a height control component. The bottom inner wall of the water bath has a mounting groove adapted to the mounting block 17, and the top of the mounting block 17 has a lifting groove that slides with the lifting column 18. The top of the lifting column 18 is connected to the bottom surface of the functional block 4. The height control component is used to fix the position of the lifting column 18 on the mounting block 17. In actual use, the mounting block 17 can be detachably installed in the mounting groove. The lifting column 18 drives the functional block 4 to descend, and the height control component fixes the functional block 4 and the cup body 2 in the water bath, thus ensuring the height of the cup body 2 in the water bath and ensuring that the alkaline solution level in the cup body 2 is lower than the water level in the water bath, ensuring the heating effect of the alkaline solution. When different numbers of beakers are needed, different shaped functional blocks 4 need to be selected to correspond to the corresponding number of beakers.

[0040] like Figure 3 , Figure 4 and Figure 9 As shown, the height control assembly includes a control lever 19, a gravity block 20, and a side block 21. One end of the control lever 19 passes through the functional block 4, the drive disk 12, the lifting column 18, and the mounting block 17, and is connected to the gravity block 20. The side block 21 is connected to the outer periphery of the control lever 19. The bottom of the mounting block 17 has an L-shaped slot 22 that slides with the side block 21. In actual use, the functional block 4 has two position states. One position state is in the high position. When in the high position, the side block 21 is inserted into the horizontal section of the L-shaped slot 22, which is convenient for the staff to install the beaker. When it is necessary to immerse the beaker in the water bath, the control lever 19 is rotated, which drives the drive disk 12 to rotate synchronously. This causes the side block 21 to disengage from the horizontal section of the L-shaped slot 22 and from the vertical section. Under the gravity of the gravity block 20, the control lever 19 slides down, which in turn causes the functional block 4 and multiple beakers 2 to slide down and be immersed in the water bath. The structure is simple and the operation is convenient.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A water bath device for accelerating the hydrolysis resistance test of synthetic leather, characterized in that, Includes a water bath machine (1) and a beaker. The top of the water bath machine (1) is provided with a water bath tank. The water bath machine (1) is also rotatably mounted with a cover plate that can seal the top opening of the water bath tank. The water bath is detachably installed with a uniform distribution and fixing mechanism, which can keep the amount of alkali solution in multiple beakers consistent, fix multiple beakers in the position in the water bath, and keep multiple beakers at the same height in the water bath. The beaker includes a beaker body (2), a connecting tube (3), and a sealing mechanism; the connecting tube (3) is connected to one side of the bottom of the beaker body (2), and the sealing mechanism can seal the connecting tube (3). The equal distribution fixing mechanism includes a functional block (4), a fixing structure, a flow control structure and a lifting structure; the functional block (4) is set in a water bath tank, and the functional block (4) is provided with a connecting port (5) adapted to the connecting pipe (3) on all four sides. The functional block (4) is provided with a connecting chamber (6) connecting multiple connecting ports (5). The flow control structure can control the opening and closing of the sealing mechanism. The fixing structure is used to fix the cup body (2) to the side of the functional block (4); The lifting structure is used to drive the functional block (4) and multiple cups (2) to move synchronously up and down in the water bath.

2. The water bath device for accelerating hydrolysis resistance testing of synthetic leather according to claim 1, characterized in that, The sealing mechanism includes a sealing plug (7), a first straight rod (8), and a sealing spring (9); the connecting pipe (3) is provided with a channel with a small diameter section, a conical section, and a large diameter section. The sealing plug (7) is composed of a cylinder and a frustum. The diameter of the cylindrical section of the sealing plug (7) is the same as the inner diameter of the small diameter section in the connecting pipe (3), and the cylindrical section of the sealing plug (7) can be inserted into the small diameter section of the connecting pipe (3). The maximum diameter of the frustum section of the sealing plug (7) is smaller than the inner diameter of the large diameter section. A first bracket is installed in the large diameter section of the connecting pipe (3). One end of the first straight rod (8) is connected to the sealing plug (7), and the other end of the first straight rod (8) slides through the first bracket. The sealing spring (9) is fitted on the first straight rod (8), and the two ends of the sealing spring (9) abut against the end of the sealing plug (7) and the first bracket, respectively.

3. The water bath device for accelerating hydrolysis resistance testing of synthetic leather according to claim 2, characterized in that, The flow control structure includes a drive rod (10), a reset spring (11), and a drive component; multiple second brackets are installed in the connecting chamber (6), the number of the multiple second brackets is the same as the number of connecting ports (5) and they are set one by one, the drive rod (10) slides through the second bracket, the outer periphery of the drive rod (10) is connected with a boss, the reset spring (11) is fitted on the drive rod (10), and the two ends of the reset spring (11) abut against the second bracket and the boss respectively, and one end of the drive rod (10) can abut against the end of the sealing plug (7); The drive element is used to drive the drive rod (10) to slide on the second bracket.

4. The water bath device for accelerating hydrolysis resistance testing of synthetic leather according to claim 3, characterized in that, The driving component includes a driving disk (12), which is rotatably installed in the communicating chamber (6). The outer periphery of the driving disk (12) is provided with multiple inclined sliding grooves. The number of inclined sliding grooves is the same as the number of driving rods (10) and they are set one-to-one. The other end of the driving rod (10) slides in cooperation with the inclined surface of the inclined sliding groove.

5. The water bath device for accelerating hydrolysis resistance testing of synthetic leather according to claim 4, characterized in that, The fixing component structure includes a bracket (13) and a clamping component; the bracket (13) is connected to the side of the functional block (4), the cup body (2) is placed on the bracket (13), and the clamping component can drive the connecting tube (3) to be inserted into the connecting port (5) and clamp the cup body (2).

6. The water bath device for accelerating hydrolysis resistance testing of synthetic leather according to claim 5, characterized in that, The clamping assembly includes a telescopic rod (14), a clamping block (15), and a clamping spring (16); the bracket (13) has a telescopic hole at one end away from the functional block (4) that slides with the telescopic rod (14); the clamping block (15) is connected to the side of the telescopic rod (14) away from the functional block (4); the clamping block (15) can abut against the outer periphery of the cup body (2); the clamping spring (16) is disposed in the telescopic hole and is used to drive the telescopic rod (14) to retract in the telescopic hole.

7. The water bath device for accelerating hydrolysis resistance testing of synthetic leather according to claim 5, characterized in that, The lifting structure includes a mounting block (17), a lifting column (18), and a height control component; the bottom inner wall of the water bath has a mounting groove that is compatible with the mounting block (17), the top of the mounting block (17) has a lifting groove that slides with the lifting column (18), and the top of the lifting column (18) is connected to the bottom surface of the functional block (4). The height control component is used to fix the position of the lifting column (18) on the mounting block (17).

8. The water bath device for accelerating hydrolysis resistance testing of synthetic leather according to claim 7, characterized in that, The height control assembly includes a control rod (19), a gravity block (20), and a side block (21). One end of the control rod (19) passes through the functional block (4), the drive disc (12), the lifting column (18), and the mounting block (17) and is connected to the gravity block (20). The side block (21) is connected to the outer periphery of the control rod (19). The bottom of the mounting block (17) is provided with an L-shaped slot (22) that slides with the side block (21).

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