Polyurethane sponge testing device
By designing a polyurethane foam testing device, which uses a fixed platform, support shaft, and testing mechanism to simulate the dynamic stress of the foam, the problem of traditional testing devices being unable to intuitively display the elasticity changes of the foam is solved, thus enabling accurate evaluation and quality control of the foam's performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-31
AI Technical Summary
Existing sponge testing devices cannot simulate the dynamic stress process of sponges in actual use, making it difficult to intuitively demonstrate their elasticity changes and failing to meet enterprises' high requirements for product quality.
A polyurethane foam testing device was designed, including a fixed platform, a support shaft, an observation ruler, a test box, and a testing mechanism. Through the cooperation of the support shaft and the telescopic rod, dynamic compression and tensile testing of the foam can be achieved, providing an intuitive performance evaluation.
It enables accurate performance testing of sponges under dynamic stress, helping companies quickly identify quality problems and improve product quality stability and market competitiveness.
Smart Images
Figure CN224066508U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sponge testing devices, and in particular to a polyurethane sponge testing device. Background Technology
[0002] Polyurethane foam, with its excellent elasticity, softness, water absorption, sound absorption, and chemical corrosion resistance, has been widely used in numerous fields. In everyday consumer goods such as sofas, mattresses, and pillows, polyurethane foam provides comfortable support and a soft touch. In automotive interiors, it is used for seat filling and sound insulation, enhancing the driving experience. In the industrial sector, it can be used as a filter material for liquid and gas filtration, and in the packaging industry, it protects precision instruments and electronic products from vibration and impact damage. Furthermore, in the medical field, due to its good biocompatibility, it can be used in wound dressings and medical mattresses. As the application scenarios of polyurethane foam continue to expand, the requirements for its performance are becoming increasingly diverse and stringent. This urgently requires precise and comprehensive testing to ensure product quality. At the same time, in an increasingly competitive market environment, companies are paying more and more attention to product quality control. The quality of polyurethane foam directly affects the performance of downstream products and user experience. Once quality problems occur, they can not only affect the company's reputation but also lead to economic losses. By conducting comprehensive performance testing of polyurethane foam through precise testing equipment, product quality defects can be detected in a timely manner, production processes can be optimized, product quality stability can be improved, and the company's market competitiveness can be enhanced.
[0003] Currently, most foam testing devices on the market consist of mechanical performance testing components and dimensional measurement components. Traditional testing methods are mostly static tests, such as measuring the deformation of the foam under specific pressure. These methods cannot simulate the dynamic stress process of the foam in actual use. In practical applications, polyurethane foam is often subjected to repeated dynamic compression and tensile forces. For example, in sofa cushions, people constantly sit and stand up during daily use, causing the foam to undergo multiple dynamic deformations. Traditional testing methods cannot intuitively demonstrate the elastic changes of the foam in this dynamic process, making it difficult for users or R&D personnel to intuitively feel its performance in real-world scenarios. At the same time, in an increasingly competitive market environment, companies have higher and higher requirements for product quality control. Intuitive elasticity testing helps companies quickly identify quality problems during the production process. In the quality inspection stage of the production line, through intuitive elasticity testing, workers can quickly determine whether the elasticity of freshly produced foam meets the standards, promptly identify and handle unqualified products, prevent them from entering the market, and improve the company's product quality image. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a polyurethane foam testing device, which aims to improve the problem that traditional foam testing devices in the prior art cannot directly test the elasticity of foam.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a polyurethane sponge testing device, including a fixed platform, a fixed plate two fixedly connected to the top right side of the fixed platform, a support shaft two fixedly connected to the top rear side of the fixed plate two, an observation ruler two fixedly connected to the bottom front side of the outer wall of the support shaft two, a support plate fixedly connected to the top of the support shaft two, a telescopic rod two provided on the front side of the outer wall of the support plate, a test box fixedly connected to the outer wall of the support shaft two near the middle, a placement plate slidably connected to the bottom inner wall of the test box, sliding shafts fixedly connected to the bottom left and right sides of the placement plate, springs fixedly connected to the bottom outer walls of multiple sliding shafts, the other ends of multiple springs contacting the bottom inner wall of the test box, multiple sliding shafts sliding on the bottom left and right sides of the test box, and a testing mechanism provided on the top left side of the fixed platform, the testing mechanism being used to test the tensile strength of the sponge.
[0006] As a further description of the above technical solution:
[0007] The testing mechanism includes a fixed plate, the bottom of which is fixedly connected to the top left side of the fixed platform. A placement clamp is fixedly connected to the top front side of the fixed plate. A threaded compression plate is threadedly connected to the outer right side of the placement clamp. A fixed column is fixedly connected to the top rear side of the fixed plate. A support shaft is fixedly connected to both the left and right sides of the inner wall of the fixed column. A telescopic rod is fixedly connected to the bottom of the inner wall of the fixed column. A connecting plate is fixedly connected to the output end of the telescopic rod. An observation ruler is fixedly connected to the right end of the front side of the outer wall of the fixed column.
[0008] As a further description of the above technical solution:
[0009] Protective plates are fixedly connected to both the left and right sides of the outer wall of the fixed column, and multiple protective plates are used to protect the left and right sides of the outer wall of the fixed column.
[0010] As a further description of the above technical solution:
[0011] Protective strips are fixedly connected to the front and rear ends of the bottom of the outer wall of the fixed platform, and protective pads are fixedly connected to the left and right sides of the outer wall of the fixed platform.
[0012] As a further description of the above technical solution:
[0013] The top left and right ends of the outer wall of the fixed platform have handles, and the outer walls of the multiple handles are fixedly connected with anti-slip sleeves.
[0014] As a further description of the above technical solution:
[0015] Protective strips are fixedly connected to the upper and lower ends of the front side of the outer wall of the test box, and support columns are fixedly connected to the left and right sides of the outer wall of the test box. Multiple support columns are fixed to the top of the fixing plate two.
[0016] As a further description of the above technical solution:
[0017] The base is fixedly connected to each of the four corners at the bottom of the fixed platform, and soft pads are fixedly connected to the front and back sides of the outer wall of the fixed platform.
[0018] As a further description of the above technical solution:
[0019] A controller is fixedly connected to the front side of the top center of the fixed platform, and the controller is electrically connected to telescopic rod two and telescopic rod one respectively.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, a second fixed plate is fixedly connected to the top right side of the fixed platform, and a second support shaft is fixed to the top rear side of the second fixed plate. The inner wall of the test box is slidably connected to the placement plate near the bottom. The telescopic rod installed on the top of the second support shaft is driven to squeeze downward, thereby driving the sliding shafts fixed at the bottom left and right ends of the placement plate to slide downward. By applying the same force, the sponge is tested. The horizontal bar at the bottom of the sliding shaft points to different positions of the observation ruler, thereby determining whether the sponge being tested is qualified, thus simplifying the testing operation.
[0022] 2. In this utility model, in order to test the tensile properties of the sponge, a fixing plate is fixedly connected to the top left side of the fixing platform, and a threaded extrusion plate is threadedly connected to the outer right side of the placement clamp. By rotating the threaded extrusion plate, the threaded extrusion plate can fix the sponge in the inner wall of the placement clamp. The placement clamp is also fixed to the bottom front side of the connecting plate, so that the telescopic rod can drive the sponge under test to be stretched through the connecting plate, thereby meeting the test requirements. Attached Figure Description
[0023] Figure 1 This is a front perspective view of the fixing platform of the polyurethane sponge testing device proposed in this utility model.
[0024] Figure 2 This is a structural diagram of the fixing column of the polyurethane sponge testing device proposed in this utility model;
[0025] Figure 3 This is a partial structural diagram of the fixing plate 2 of the polyurethane sponge testing device proposed in this utility model;
[0026] Figure 4 This is a structural diagram of the test box of the polyurethane foam testing device proposed in this utility model;
[0027] Figure 5 This is a schematic diagram of the structure of the polyurethane foam testing device proposed in this utility model, showing the placement of the clamping plate.
[0028] Legend:
[0029] 1. Fixed platform; 2. Testing mechanism; 201. Fixed plate one; 202. Placement clamping plate; 203. Threaded extrusion plate; 204. Support shaft one; 205. Fixed column; 206. Connecting plate; 207. Telescopic rod one; 208. Observation ruler one; 3. Fixed plate two; 4. Support shaft two; 5. Observation ruler two; 6. Test box; 7. Support plate; 8. Telescopic rod two; 9. Placement plate; 10. Spring; 11. Sliding shaft; 12. Protective strip; 13. Support column; 14. Protective strip; 15. Controller; 16. Handle; 17. Anti-slip sleeve; 18. Protective pad; 19. Protective plate; 20. Soft pad; 21. Base. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see the appendix Figure 2 - Appendix Figure 4 This utility model provides an embodiment of a polyurethane foam testing device, including a fixed platform 1. A fixed plate 3 is fixedly connected to the top right side of the fixed platform 1. A support shaft 4 is fixedly connected to the top rear side of the fixed plate 3. An observation ruler 5 is fixedly connected to the bottom front side of the outer wall of the support shaft 4. A support plate 7 is fixedly connected to the top of the support shaft 4. A telescopic rod 8 is provided on the front side of the outer wall of the support plate 7. Furthermore, the support plate 7 is fixedly connected to the top of the support shaft 4, and the telescopic rod 8 is provided on the front side of the outer wall of the support plate 7. This provides the necessary telescopic function for the device to adapt to test objects of different sizes. The outer wall of the support shaft 4 is close to... A test box 6 is fixedly connected near the center. A placement plate 9 is slidably connected to the bottom of the inner wall of the test box 6. Sliding shafts 11 are fixedly connected to the left and right sides of the bottom of the placement plate 9. Springs 10 are fixedly connected to the bottom of the outer wall of the multiple sliding shafts 11. The other end of the multiple springs 10 contacts the bottom of the inner wall of the test box 6. This ensures that the springs 10 can play an effective role during the test. The other end of the multiple springs 10 contacts the bottom of the inner wall of the test box 6. The multiple sliding shafts 11 slide on the left and right sides of the bottom of the test box 6. A test mechanism 2 is set on the top left side of the fixed platform 1. The test mechanism 2 is used to test the tensile strength of the sponge.
[0032] Specifically, a fixing plate 2 3 is fixedly connected to the top right side of the fixing platform 1. This design allows the fixing platform 1 to provide a stable support structure. Furthermore, a support shaft 2 4 is fixedly connected to the top rear side of the fixing plate 2 3. This connection method ensures the stability of the support shaft 2 4. For easy observation and measurement, an observation ruler 2 5 is fixedly connected to the bottom front side of the outer wall of the support shaft 2 4, allowing users to read data intuitively. A placement plate 9 is slidably connected to the bottom inner wall of the test box 6. The placement plate 9 can accommodate the sponge or other materials to be tested. To ensure the stability of the placement plate... The 9 can slide stably inside the test box 6. Sliding shafts 11 are fixedly connected to the bottom left and right sides of the 9. Springs 10 are fixedly connected to the bottom of the outer wall of the multiple sliding shafts 11. These springs 10 provide a certain elastic support for the placement plate 9, ensuring that it can be carried out smoothly during the test. The multiple sliding shafts 11 slide on the bottom left and right sides of the test box 6, which provides the necessary movement space for the test. Finally, a test mechanism 2 is set on the top left side of the fixed platform 1. The test mechanism 2 is designed to test the tensile strength of the sponge. It can accurately measure the performance of the sponge when it is stretched.
[0033] Please see the appendix Figure 3 - Appendix Figure 5 The testing mechanism 2 includes a fixed plate 201, the bottom of which is fixedly connected to the top left side of the fixed platform 1. A placement clamping plate 202 is fixedly connected to the top front side of the fixed plate 201. A threaded pressing plate 203 is threadedly connected to the right side of the outer wall of the placement clamping plate 202. A fixed column 205 is fixedly connected to the top rear side of the fixed plate 201. Support shafts 204 are fixedly connected to both the left and right sides of the inner wall of the fixed column 205. A telescopic rod 207 is fixedly connected to the bottom of the inner wall of the fixed column 205. A connecting plate 206 is fixedly connected to the output end of the telescopic rod 207. An observation ruler 208 is fixedly connected to the right end of the front side of the outer wall of the fixed column 205.
[0034] Specifically, the top front side of the fixing plate 201 is designed to be fixedly connected to the placement clamping plate 202. The outer right side of the placement clamping plate 202 is connected to a threaded extrusion plate 203 by means of threads to achieve a specific function. At the same time, the top rear side of the fixing plate 201 is also fixedly connected to the fixing column 205. In order to enhance the stability of the structure, the left and right sides of the inner wall of the fixing column 205 are fixedly connected to the support shaft 204. In addition, a telescopic rod 207 is fixedly connected to the bottom of the inner wall of the fixing column 205, and its output end is fixedly connected to the connecting plate 206 to ensure the stability of the entire device. Finally, for the convenience of observation and measurement, an observation ruler 208 is fixedly connected to the right end of the front side of the outer wall of the fixing column 205.
[0035] Please see the appendix Figure 1 - Appendix Figure 3 Protective plates 19 are fixedly connected to the left and right sides of the outer wall of the fixed column 205. Multiple protective plates 19 are used to protect the left and right sides of the outer wall of the fixed column 205. Protective strips 14 are fixedly connected to the front and rear ends of the bottom of the outer wall of the fixed platform 1. Protective pads 18 are fixedly connected to the left and right sides of the outer wall of the fixed platform 1. Protective pads 18 are also fixedly connected to the left and right sides of the outer wall of the fixed platform 1. The setting of these protective pads 18 is to further enhance the durability and safety of the fixed platform 1. There are handles 16 at the top left and right ends of the outer wall of the fixed platform 1. Anti-slip sleeves 17 are fixedly connected to the outer walls of multiple handles 16.
[0036] Specifically, protective plates 19 are fixedly connected to both sides of the outer wall of the fixed column 205. These protective plates 19 provide additional protection to the left and right sides of the outer wall of the fixed column 205 to prevent damage caused by external forces during use. In addition, protective strips 14 are also fixedly connected to the front and rear ends of the bottom of the outer wall of the fixed platform 1. These protective strips 14 are also designed to protect the corresponding parts of the fixed platform 1 to avoid damage during handling or use. For ease of operation, handles 16 are provided on the left and right ends of the top of the outer wall of the fixed platform 1. These handles 16 make it easier for users to move or adjust the position of the fixed platform 1. To improve grip comfort and safety, anti-slip sleeves 17 are fixedly connected to the outer walls of multiple handles 16. These anti-slip sleeves 17 can effectively prevent hands from slipping and ensure user safety during use.
[0037] Please see the appendix Figure 1 - Appendix Figure 3 Protective strips 12 are fixedly connected to the upper and lower ends of the front side of the outer wall of the test box 6. Support columns 13 are fixedly connected to the left and right sides of the outer wall of the test box 6. Multiple support columns 13 are fixed to the top of the second fixed plate 3. Bases 21 are fixedly connected to the four corners of the bottom of the fixed platform 1. Multiple support columns 13 are fixed to the top of the second fixed plate 3. This layout can further enhance the support capacity of the test box 6 and ensure its reliability in various working environments. In addition, the four corners of the bottom of the fixed platform 1 are designed to be fixedly connected to bases 21. This design can not only provide additional support, but also prevent the fixed platform 1 from moving unstablely during use. Soft pads 20 are fixedly connected to the front and rear sides of the outer wall of the fixed platform 1. A controller 15 is fixedly connected to the front side of the middle of the top surface of the fixed platform 1. The controller 15 is electrically connected to the second telescopic rod 8 and the first telescopic rod 207 respectively.
[0038] Specifically, protective strips 12 are fixedly connected to both the upper and lower ends of the front side of the outer wall of the test box 6. This design can effectively protect the test box 6 from external impacts or friction during use, thereby extending the service life of the test box 6. At the same time, support columns 13 are also fixedly connected to both the left and right sides of the outer wall of the test box 6. These support columns 13 not only provide additional stability, but also ensure the stability of the test box 6 when placed or moved. In order to further improve the comfort and safety during use, soft pads 20 are fixedly connected to both the front and rear sides of the outer wall of the fixed platform 1. These soft pads 20 can absorb the vibration generated during use, reduce noise, and also protect the surface of the fixed platform 1 from damage. A controller 15 is also fixedly connected to the front side of the top center of the fixed platform 1. The controller 15 is the core component of the entire test box 6 system and is responsible for controlling and managing the operating status of the test box 6. In order to realize the coordinated work of the controller 15 with other internal components of the test box 6, the controller 15 is connected to the telescopic rod 2 8 and the telescopic rod 1 207 through telecommunications, ensuring accurate signal transmission and efficient operation of the test box 6.
[0039] Working principle: A fixing plate 2 3 is fixedly connected to the top right side of the fixing platform 1. A support shaft 2 4 is fixed to the top rear side of the fixing plate 2 3. An observation ruler 2 5 is set at the bottom front side of the outer wall of the support shaft 2 4. A test box 6 is fixedly connected to the outer wall of the support shaft 2 4 near the middle. A placement plate 9 is slidably connected to the inner wall of the test box 6 near the bottom. The telescopic rod 2 8 installed at the top of the support shaft 2 4 is driven to squeeze downward, so that the sponge placed on the top of the placement plate 9 can be squeezed by the telescopic rod 2 8. This causes the sliding shaft 11 fixed at the bottom left and right ends of the placement plate 9 to slide downward. Under the action of the spring 10 installed on the outer wall of the sliding shaft 11, the same force is applied to test the sponge. The horizontal bar at the bottom of the sliding shaft 11 points to different positions of the observation ruler 2 5, thereby determining whether the sponge being tested is qualified, thus simplifying the testing operation.
[0040] To test the stretchability of the sponge, a fixing plate 201 is fixedly connected to the top left side of the fixing platform 1. A placement clamping plate 202 is fixedly connected to the top front side of the fixing plate 201. A threaded compression plate 203 is threadedly connected to the outer right side of the placement clamping plate 202. By rotating the threaded compression plate 203, the threaded compression plate 203 can fix the sponge in the inner wall of the placement clamping plate 202. A fixing post 205 is fixed to the top rear side of the fixing plate 201. A telescopic rod 207 is set at the bottom of the inner wall of the fixing post 205. A connecting plate 206 is fixed to the output end of the telescopic rod 207. The placement clamping plate 202 is also fixed to the bottom front side of the connecting plate 206. This allows the telescopic rod 207 to pull the sponge under test through the connecting plate 206. At the same time, an observation ruler 208 is set at the right end of the outer front side of the fixing post 205 to observe the test value in real time, thus meeting the test requirements.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. Polyurethane sponge testing device comprising a fixed table (1), characterized in that: The top right side of the fixed table (1) is fixedly connected with a fixed plate two (3), the top rear side of the fixed plate two (3) is fixedly connected with a support shaft two (4), the outer wall front bottom of the support shaft two (4) is fixedly connected with an observation ruler two (5), the top of the support shaft two (4) is fixedly connected with a support plate (7), the outer wall front side of the support plate (7) is provided with a telescopic rod two (8), the outer wall near the middle of the support shaft two (4) is fixedly connected with a test box (6), the inner wall bottom of the test box (6) is slidably connected with a placing plate (9), the bottom left and right sides of the placing plate (9) are fixedly connected with a sliding shaft (11), the outer wall bottom of a plurality of sliding shafts (11) is fixedly connected with a spring (10), the other end of a plurality of springs (10) is in contact with the inner wall bottom of the test box (6), a plurality of sliding shafts (11) slide on the left and right sides of the bottom of the test box (6), and the top left side of the fixed table (1) is provided with a test mechanism (2). The test mechanism (2) is used for testing the lifting strength of the sponge.
2. The polyurethane sponge testing device of claim 1, wherein: The test mechanism (2) comprises a fixed plate one (201), the bottom of the fixed plate one (201) is fixedly connected to the top left side of the fixed table (1), the top front side of the fixed plate one (201) is fixedly connected with a placing clamp plate (202), the outer wall right side of the placing clamp plate (202) is threadedly connected with a threaded extrusion plate (203), the top rear side of the fixed plate one (201) is fixedly connected with a fixed column (205), the inner wall left and right sides of the fixed column (205) are fixedly connected with a support shaft one (204), the inner wall bottom of the fixed column (205) is fixedly connected with a telescopic rod one (207), and the output end of the telescopic rod one (207) is fixedly connected with a connecting plate (206). The outer wall front side right end of the fixed column (205) is fixedly connected with an observation ruler one (208).
3. The polyurethane sponge testing device of claim 2, wherein: The outer wall left and right sides of the fixed column (205) are fixedly connected with a protection plate (19), and a plurality of protection plates (19) are used for protecting the outer wall left and right sides of the fixed column (205).
4. The polyurethane sponge testing device of claim 1, wherein: The outer wall bottom front and rear ends of the fixed table (1) are fixedly connected with a protection strip (14), and the outer wall left and right sides of the fixed table (1) are fixedly connected with a protection pad (18).
5. The polyurethane sponge testing device of claim 1, wherein: The outer wall top left and right ends of the fixed table (1) are provided with handles (16), and the outer wall of a plurality of handles (16) is fixedly connected with an anti-skid sleeve (17).
6. The polyurethane sponge testing device of claim 1, wherein: The outer wall front side upper and lower ends of the test box (6) are fixedly connected with a protection strip (12), the outer wall left and right sides of the test box (6) are fixedly connected with a support column (13), and a plurality of support columns (13) are fixed to the top of the fixed plate two (3).
7. The polyurethane sponge testing device of claim 1, wherein: The bottom of the fixed table (1) is fixedly connected with a base (21), and the outer wall front and rear sides of the fixed table (1) are fixedly connected with a soft pad (20).
8. The polyurethane sponge testing device of claim 1, wherein: The top surface middle front side of the fixed table (1) is fixedly connected with a controller (15), and the controller (15) is electrically connected with the telescopic rod two (8) and the telescopic rod one (207) respectively.