Hinge fatigue test bench
By introducing a cylinder-driven tie rod swing and a positioning sleeve rubber block buffer structure into the hinge fatigue test bench, the impact problem during closure was solved, the stability and data accuracy of the hinge test were achieved, and the equipment life was extended.
Patent Information
- Application Number
- CN202423135488.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing hinge fatigue testing benches lack effective buffering when closed, causing impact forces to affect the stability of the motion state, generating vibration and noise, and affecting the accuracy of data acquisition.
A hinge fatigue test bench was designed, which uses a cylinder to drive the tie rod to swing, combined with a positioning sleeve and rubber block for buffering, and a spring and slide groove structure to achieve buffering and protection, ensuring the stability and accuracy of the hinge during the opening and closing process.
It improved the efficiency and accuracy of the test data, extended the service life of the equipment, and reduced the wear and tear of components and noise interference.
Smart Images
Figure CN223551311U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hinge testing technology, and in particular to a hinge fatigue testing bench. Background Technology
[0002] A hinge fatigue testing bench is a specialized device used to simulate the repeated opening and closing actions of hinges in actual use and to test their fatigue performance. By precisely controlling parameters such as opening and closing frequency, angle, and force, it accelerates the wear and aging process of the hinge, thereby obtaining key data such as the hinge's fatigue life and reliability in a short time. This provides a basis for hinge design optimization, quality inspection, and product certification, and is widely used in industries such as furniture, automobiles, and doors and windows.
[0003] The hinge fatigue testing bench mainly consists of a power system, a transmission system, a control system, fixtures, and sensors. The power system provides power, which is converted into a suitable motion form by the transmission system to drive the hinge to repeatedly open and close. The control system precisely sets and adjusts test parameters, such as frequency and angle. Sensors collect data in real time, and the fixtures fix the hinge in place. By simulating actual operating conditions, the fatigue performance and reliability of the hinge under repeated opening and closing are tested.
[0004] In existing technologies, some hinge fatigue testing benches still exhibit rigid closed contact when closed, failing to provide effective buffering and protection for components. Due to the lack of effective buffering, the impact force during closure leads to unstable hinge motion during the test, generating additional vibration and noise. This, in turn, affects the sensor's acquisition of test data, causing data deviation and failing to accurately reflect the hinge's fatigue performance in actual use. Therefore, a hinge fatigue testing bench is proposed to address these issues. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a hinge fatigue testing bench, which aims to improve the problem that the existing technology cannot effectively buffer the hinge fatigue testing bench when it is closed and protect the components.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A hinge fatigue testing bench includes a fixed frame, a support plate fixedly connected to the outside of the fixed frame, a door panel rotatably connected to the outside of the support plate, a positioning post fixedly connected to the outside of the door panel, a positioning sleeve movably connected to the end of the positioning post away from the door panel, a sliding sleeve slidably connected to the outside of the positioning sleeve, a rubber block fixedly connected to the inner wall of the positioning sleeve, a spring fixedly connected to the inner wall of the positioning sleeve, a sliding column fixedly connected to the outside of the positioning sleeve, a sliding groove formed on the inner wall of the sliding sleeve, and a fixing assembly for fixing subsequent components fixedly connected to the outside of the fixed frame.
[0008] As a further description of the above technical solution:
[0009] The fixing component includes a tabletop, a support block is fixedly connected to the outside of the tabletop, a cylinder is fixedly connected to the outside of the support block, a connecting column is fixedly connected to the drive end of the cylinder, and a pull rod is rotatably connected to the inner wall of the connecting column.
[0010] As a further description of the above technical solution:
[0011] The inner wall of the pull rod is rotatably connected to a stabilizing column, and the end of the pull rod away from the stabilizing column is slidably connected to a guide rail;
[0012] As a further description of the above technical solution:
[0013] The outer side of the sliding sleeve is slidably connected to the inner wall of the sliding groove, and the end of the spring away from the positioning sleeve is fixedly connected to the inner wall of the sliding sleeve.
[0014] As a further description of the above technical solution:
[0015] The outer side of the rubber block is in contact with the outer side of the spring, and the outer side of the spring is slidably connected to the inner wall of the sliding sleeve.
[0016] As a further description of the above technical solution:
[0017] The tabletop is fixedly connected to the outside of the cylinder, and the stabilizing column is fixedly connected to the outside of the tabletop.
[0018] As a further description of the above technical solution:
[0019] The guide rail is fixedly connected to the outside of the door panel, and the end of the sliding sleeve away from the positioning sleeve is fixedly connected to the outside of the fixing frame.
[0020] As a further description of the above technical solution:
[0021] The outside of the door panel is in contact with the outside of the fixing frame, and the end of the rubber block away from the positioning sleeve is in contact with the inner wall of the sliding sleeve.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, by activating the cylinder fixed above the support block, the cylinder will push the pull rod connected inside the connecting column to swing. When the pull rod swings, since the stabilizing column is connected to the pull rod, the pull rod will swing with the stabilizing column as the fulcrum. The pull rod will slide back and forth inside the guide rail, causing the guide rail to drive the door panel to open and close with the fixed frame, which improves the work efficiency and the accuracy of the experiment.
[0024] 2. In this utility model, the door panel reciprocates between the door panel and the fixed frame. During the closing action, the positioning post contacts the positioning sleeve. At this time, the positioning sleeve is subjected to the force of the positioning post and compresses the spring. The spring plays a role in buffering and compressing the space, and allows the sliding post outside the positioning sleeve to slide along the path of the sliding groove inside the sliding sleeve. When the sliding post is about to reach the end of the sliding groove, the rubber block contacts the inside of the sliding sleeve to buffer again, which plays a role in protecting the components and extending the service life of the equipment. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of the hinge fatigue test bench proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the sliding column of the hinge fatigue test bench proposed in this utility model.
[0027] Figure 3 This is a schematic diagram of the positioning column of the hinge fatigue test bench proposed in this utility model;
[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0029] Legend:
[0030] 1. Fixing frame; 2. Support plate; 3. Door panel; 4. Positioning post; 5. Positioning sleeve; 6. Sliding sleeve; 7. Rubber block; 8. Spring; 9. Sliding column; 10. Sliding groove; 11. Tabletop; 12. Support block; 13. Cylinder; 14. Connecting column; 15. Tie rod; 16. Stabilizing column; 17. Guide rail. Detailed Implementation
[0031] 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.
[0032] Reference Figures 1 to 2 This utility model provides an embodiment of a hinge fatigue test bench, including a fixed frame 1. The fixed frame 1 serves as the basic support structure of the entire test bench, providing a stable installation position for other components. A support plate 2 is fixedly connected to the outside of the fixed frame 1. The support plate 2 connects the fixed frame 1 and the door panel 3, allowing the door panel 3 to move relative to the fixed frame 1. The door panel 3 is rotatably connected to the outside of the support plate 2. The door panel 3 simulates the opening and closing of components in actual use, facilitating fatigue testing. A positioning post 4 is fixedly connected to the outside of the door panel 3. The positioning post 4 is used to cooperate with the positioning sleeve 5 for positioning during the opening and closing of the door panel 3. The end of the positioning post 4 away from the door panel 3 is movably connected to the positioning sleeve 5. The positioning sleeve 5 can receive the force of the positioning post 4 and transmit it to subsequent components. A sliding sleeve 6 is slidably connected to the outside of the positioning sleeve 5, providing guidance and limiting for the sliding of the positioning sleeve 5.
[0033] A rubber block 7 is fixedly connected to the inner wall of the positioning sleeve 5. The rubber block 7 can play a buffering and protective role under certain conditions. A spring 8 is fixedly connected to the inner wall of the positioning sleeve 5. The spring 8 can undergo elastic deformation when subjected to external force, playing a buffering and providing compression space function. A sliding column 9 is fixedly connected to the outside of the positioning sleeve 5. The sliding column 9 cooperates with the sliding groove 10 to limit the sliding trajectory of the positioning sleeve 5 relative to the sliding sleeve 6. The sliding groove 10 is opened on the inner wall of the sliding sleeve 6. A fixing component is fixedly connected to the outside of the fixing frame 1 to fix the subsequent components. The fixing component is used to further stabilize the relevant components and ensure the normal operation of the test bench.
[0034] Reference Figures 3 to 4 The fixed assembly includes a table 11, which provides a mounting surface for the entire fixed assembly and related components. A support block 12 is fixedly connected to the outside of the table 11. The support block 12 supports the cylinder 13 and ensures that the cylinder 13 can work stably. The cylinder 13 is fixedly connected to the outside of the support block 12. The cylinder 13 is the power source for the entire opening and closing action. It drives the movement of subsequent components through its extension and retraction. A connecting column 14 is fixedly connected to the drive end of the cylinder 13. The connecting column 14 is used to connect the cylinder 13 and the pull rod 15 to transmit the power of the cylinder 13. The pull rod 15 is rotatably connected to the inner wall of the connecting column 14.
[0035] After receiving power from the cylinder 13, the pull rod 15 will swing accordingly, thereby driving other components to move. A stabilizing column 16 is rotatably connected to the inner wall of the pull rod 15. The stabilizing column 16 provides a stable fulcrum for the swing of the pull rod 15, making the swing of the pull rod 15 more regular and accurate. The end of the pull rod 15 away from the stabilizing column 16 is slidably connected to the guide rail 17. The pull rod 15 slides within the guide rail 17, which can better drive the connected components to perform corresponding linear movements.
[0036] Reference Figure 2 The outer side of the sliding sleeve 6 is slidably connected to the inner wall of the sliding groove 10, which ensures the stability of the relative sliding between the sliding sleeve 6 and the positioning sleeve 5. The end of the spring 8 away from the positioning sleeve 5 is fixedly connected to the inner wall of the sliding sleeve 6, so that when the spring 8 is subjected to external force transmitted by the positioning sleeve 5, it can apply force to the sliding sleeve 6 to achieve buffering and other functions. The outer side of the rubber block 7 is in contact with the outer side of the spring 8. The two cooperate with each other to play a buffering role at different stages. The outer side of the spring 8 is slidably connected to the inner wall of the sliding sleeve 6, which ensures the relative stability of the position of the spring 8 during the extension and contraction process, and also facilitates the effective performance of its buffering function.
[0037] Reference Figures 1 to 3 The tabletop 11 is externally fixed to the outside of the cylinder 13, further stabilizing the installation of the cylinder 13 and ensuring that it will not loosen during operation. The stabilizer column 16 is externally fixed to the outside of the tabletop 11, providing a reliable fixed foundation for the stabilizer column 16 and facilitating its role as a fulcrum. The guide rail 17 is externally fixed to the outside of the door panel 3, allowing the pull rod 15 to accurately drive the door panel 3 to open and close via the guide rail 17. The end of the sliding sleeve 6 furthest from the positioning sleeve 5 is fixedly connected to the outside of the fixing frame 1, ensuring the relative fixed position of the sliding sleeve 6 within the entire test bench and facilitating the coordinated work between related components. The outside of the door panel 3 contacts the outside of the fixing frame 1, ensuring the continuity and accuracy of the opening and closing action of the door panel 3 relative to the fixing frame 1. The end of the rubber block 7 furthest from the positioning sleeve 5 contacts the inner wall of the sliding sleeve 6, allowing the rubber block 7 to provide timely buffering protection under specific conditions, avoiding rigid collisions between components and extending the service life of the equipment.
[0038] Working principle: By activating the cylinder 13 fixed above the support block 12, the cylinder 13 pushes the pull rod 15 connected inside the connecting column 14 to swing. When the pull rod 15 swings, it will swing with the stabilizing column 16 as the fulcrum because the stabilizing column 16 is connected to the pull rod 15. The pull rod 15 will slide back and forth inside the guide rail 17, causing the guide rail 17 to drive the door panel 3 to open and close with the fixed frame 1, which improves the work efficiency and the accuracy of the experiment.
[0039] As the door panel 3 reciprocates between itself and the fixed frame 1, during the closing action, the positioning post 4 contacts the positioning sleeve 5. At this time, the positioning sleeve 5 is subjected to the force of the positioning post 4, which compresses the spring 8. The spring 8 plays a role in buffering and compressing the space, and allows the sliding post 9 outside the positioning sleeve 5 to slide along the path of the slide groove 10 inside the slide sleeve 6. When the sliding post 9 is about to reach the end of the slide groove 10, the rubber block 7 contacts the inside of the slide sleeve 6 to buffer again, which plays a role in protecting the components and extending the service life of the equipment.
[0040] 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. A hinge fatigue testing rig, comprising a fixed frame (1), characterized in that: The fixed frame (1) is externally fixedly connected to a support plate (2), the support plate (2) is externally rotatably connected to a door panel (3), the door panel (3) is externally fixedly connected to a positioning post (4), the end of the positioning post (4) away from the door panel (3) is movably connected to a positioning sleeve (5), the positioning sleeve (5) is externally slidably connected to a sliding sleeve (6), the inner wall of the positioning sleeve (5) is fixedly connected to a rubber block (7), the inner wall of the positioning sleeve (5) is fixedly connected to a spring (8), the outer side of the positioning sleeve (5) is fixedly connected to a sliding column (9), the inner wall of the sliding sleeve (6) is provided with a sliding groove (10), and the fixed frame (1) is externally fixedly connected to a fixing assembly for fixing subsequent components.
2. The hinge fatigue test bench according to claim 1, characterized in that: The fixing component includes a tabletop (11), a support block (12) is fixedly connected to the outside of the tabletop (11), a cylinder (13) is fixedly connected to the outside of the support block (12), a connecting column (14) is fixedly connected to the driving end of the cylinder (13), and a pull rod (15) is rotatably connected to the inner wall of the connecting column (14).
3. The hinge fatigue test bench according to claim 2, characterized in that: The inner wall of the pull rod (15) is rotatably connected to a stabilizing column (16), and the end of the pull rod (15) away from the stabilizing column (16) is slidably connected to a guide rail (17).
4. The hinge fatigue test bench according to claim 1, characterized in that: The outer side of the sliding sleeve (6) is slidably connected to the inner wall of the sliding groove (10), and the end of the spring (8) away from the positioning sleeve (5) is fixedly connected to the inner wall of the sliding sleeve (6).
5. The hinge fatigue test bench according to claim 1, characterized in that: The outside of the rubber block (7) is in contact with the outside of the spring (8), and the outside of the spring (8) is slidably connected to the inner wall of the sliding sleeve (6).
6. The hinge fatigue test bench according to claim 3, characterized in that: The tabletop (11) is fixedly connected to the outside of the cylinder (13), and the stabilizer (16) is fixedly connected to the outside of the tabletop (11).
7. The hinge fatigue test bench according to claim 3, characterized in that: The guide rail (17) is fixedly connected to the outside of the door panel (3), and the end of the sliding sleeve (6) away from the positioning sleeve (5) is fixedly connected to the outside of the fixing frame (1).
8. The hinge fatigue test bench according to claim 1, characterized in that: The outside of the door panel (3) is in contact with the outside of the fixing frame (1), and the end of the rubber block (7) away from the positioning sleeve (5) is in contact with the inner wall of the sliding sleeve (6).