Protection device for hanging ring tension test
The rotating plate and clamping plate structure driven by hydraulic cylinders solve the problem of loose protective door of the lifting ring tensile testing device, realize stable locking of the protective door and stable clamping of the lifting ring, and improve the safety and reliability of the lifting ring tensile test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 济南耐而试验机有限公司
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-17
AI Technical Summary
The protective door of the existing lifting ring tensile testing device is prone to loosening under vibration or impact, which may lead to accidental opening, increase the risk of personnel injury, and expand the range of fragments when the lifting ring breaks, affecting the safety and reliability of the test.
The structure employs a rotating plate and clamping plate driven by a hydraulic cylinder. The rotating plate is moved by the hydraulic cylinder to achieve stable locking of the protective door. The combination of the hydraulic cylinder and the rotating plate clamps the lifting ring to ensure its stable fixation.
It effectively prevents the protective door from opening accidentally, improves the stability and safety of the device, reduces the risk of personnel injury, and reduces the threat of flying debris by stabilizing the clamping rings, thus improving the safety and reliability of the test.
Smart Images
Figure CN224137033U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ring tensile testing technology, and in particular to a protective device for ring tensile testing. Background Technology
[0002] In the field of ring tensile testing, the application of large loads to the rings during the test poses risks such as component breakage and sudden load changes, thus placing extremely high demands on the safety protection of operators and surrounding equipment. Existing ring tensile testing equipment faces a need for technological upgrades in safety protection. There is an urgent need for a protective device that can effectively prevent accidents and improve test safety, addressing the shortcomings of traditional protective structures in terms of reliability and stability, and ensuring the safe and controllable operation of the testing process.
[0003] In existing technologies, protective devices for ring tensile tests mostly employ mechanical limiting or simple fence-like protective structures. The technical principle of these devices is primarily to isolate the test area from the personnel activity area through a fixed physical barrier, or to use mechanical fasteners, bolts, or other connecting components to achieve the closure and fixation of the protective door. For example, some devices use a horizontally opening protective door, with the door opened and closed by manually rotating a handle to drive a linkage mechanism. Their mechanical structure relies on the tightening force of rigid connecting components to maintain the protective state, making it difficult to guarantee long-term stable protective effects under test vibrations or accidental collisions.
[0004] However, existing horizontally opening protective doors have significant drawbacks. Due to the limitations of their mechanical connection structure, vibrations and impacts during testing can cause the door connectors to loosen, leading to the risk of accidental opening. If the protective door opens accidentally, personnel may unknowingly enter the hazardous area where high-load testing is underway, facing the risk of being struck by flying debris or pulled into the testing equipment. This greatly increases the likelihood of injury and can also cause test interruptions or even equipment damage, severely impacting the safety and reliability of the lifting ring tensile test. Therefore, a protective device for lifting ring tensile tests is proposed to address these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a protective device for lifting ring tensile tests, which aims to improve the problem of accidental opening of horizontal doors in the prior art, thereby causing personnel to accidentally enter dangerous areas and increasing the risk of injury.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A protective device for a lifting ring tensile test includes a housing, a connecting assembly on the inner wall of the housing, a first hydraulic cylinder fixedly connected to the top of the housing, a positioning pin fixedly connected to the output end of the first hydraulic cylinder, a hinge fixedly connected inside the housing, a rotating door fixedly connected to one end of the hinge, a side wall of the rotating door rotatably connected to the side wall of the housing, a locking plate fixedly connected to the side wall of the rotating door, and a support assembly provided on the side wall of the housing.
[0008] The support assembly includes a hollow plate, the side wall of which is fixedly connected to the side wall of the outer shell. A wrench is rotatably connected inside the hollow plate, and a second rotating plate is rotatably connected inside the wrench. A fixing post is fixedly connected inside the second rotating plate, and a locking pin is fixedly connected to the outer wall of the fixing post. The side wall of the locking pin is disposed on the side wall of the locking plate.
[0009] As a further description of the above technical solution:
[0010] A support plate is fixedly connected to the inner wall of the outer shell, and a limit plate is fixedly connected to the top of the support plate.
[0011] As a further description of the above technical solution:
[0012] The top of the support plate is fixedly connected to a slide rail, and a slider is slidably connected to the outer wall of the slide rail.
[0013] As a further description of the above technical solution:
[0014] A connecting plate is fixedly connected to the top of the slider, and the sidewall of the connecting plate is set on the sidewall of the limiting plate.
[0015] As a further description of the above technical solution:
[0016] The bottom of the connecting plate is slidably connected to the top of the support plate, and a clamping plate is fixedly connected to the top of the connecting plate.
[0017] As a further description of the above technical solution:
[0018] The clamping plate sidewall is slidably connected to the inner wall of the outer shell, and the connecting plate sidewall is fixedly connected to a support block.
[0019] As a further description of the above technical solution:
[0020] The support block (10) is rotatably connected to a first rotating plate (11), and the first rotating plate (11) is fixedly connected to a second hydraulic cylinder (12) on its side wall. The output end of the second hydraulic cylinder (12) is fixedly connected to another first rotating plate (11).
[0021] As a further description of the above technical solution:
[0022] The bottom of the slider is slidably connected to the top of the support plate, and the side wall of the support block is slidably connected to the inner wall of the outer shell.
[0023] This utility model has the following beneficial effects:
[0024] In this invention, by turning the wrench, the second rotating plate is rotated, which in turn moves the fixed column, causing the locking device to disengage from the inner wall of the locking plate. This effectively locks the protective door, solving the problem of accidental opening of horizontal doors in the prior art, which could lead to personnel accidentally entering dangerous areas and increasing the risk of injury. This invention also improves the stability of the protective device for the lifting ring tensile test.
[0025] In this invention, the first rotating plate is driven to move by the second hydraulic cylinder, and then the first rotating plate drives the support block to move, which in turn drives the two connecting plates to move and brings the top clamping plate together, thus achieving the effect of stabilizing the lifting ring. This solves the problem that when the clamping is unstable, the lifting ring breaks and the range of fragments flying expands, thereby threatening the safety of the operator. This improves the practicality of the protective device used for lifting ring tensile tests. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of a protective device for a lifting ring tensile test proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the outer shell sidewall structure of a protective device for a lifting ring tensile test proposed in this utility model;
[0028] Figure 3 This is a schematic diagram of the outer shell sidewall structure of a protective device for a lifting ring tensile test proposed in this utility model;
[0029] Figure 4 This is a schematic cross-sectional view of the outer casing of a protective device for a lifting ring tensile test proposed in this utility model;
[0030] Figure 5 for Figure 3 Enlarged view of point A in the middle.
[0031] Legend:
[0032] 1. Outer shell; 2. First hydraulic cylinder; 3. Revolving door; 4. Hinge; 5. Support plate; 6. Slide rail; 7. Slider; 8. Connecting plate; 9. Clamping plate; 10. Support block; 11. First rotating plate; 12. Second hydraulic cylinder; 13. Hollow plate; 14. Wrench; 15. Second rotating plate; 16. Fixed column; 17. Clamping pin; 18. Clamping plate; 19. Positioning pin; 20. Limiting plate. Detailed Implementation
[0033] 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.
[0034] Reference Figure 1 , Figure 2 and Figure 4 The present invention provides an embodiment of a protective device for a lifting ring tensile test, comprising a housing 1, a connecting assembly provided on the inner wall of the housing 1, a first hydraulic cylinder 2 fixedly connected to the top of the housing 1, a positioning pin 19 fixedly connected to the output end of the first hydraulic cylinder 2, by pulling the positioning pin 19 to move it, the position of the lifting ring can be locked, the position of the lifting ring is fixed, and the stability of the tensile test is increased; a hinge 4 is fixedly connected inside the housing 1, a rotating door 3 is fixedly connected to one end of the hinge 4, the side wall of the rotating door 3 is rotatably connected to the side wall of the housing 1, a clamping plate 18 is fixedly connected to the side wall of the rotating door 3, and a support assembly is provided on the side wall of the housing 1;
[0035] The support assembly includes a hollow plate 13, the side wall of which is fixedly connected to the side wall of the outer shell 1. A wrench 14 is rotatably connected inside the hollow plate 13. A second rotating plate 15 is rotatably connected inside the wrench 14. A fixing post 16 is fixedly connected inside the second rotating plate 15. A locking ring 17 is fixedly connected to the outer wall of the fixing post 16. The side wall of the locking ring 17 is set on the side wall of the locking plate 18. When the wrench 14 is turned, the second rotating plate 15 is rotated, thereby causing the second rotating plate 15 and the fixing post 16 to perform circular motion, and causing the locking ring 17 to disengage from the inner wall of the locking plate 18, thus achieving the effect of locking the rotating door 3.
[0036] Reference Figure 1 and Figure 3A support plate 5 is fixedly connected to the inner wall of the outer casing 1. A limit plate 20 is fixedly connected to the top of the support plate 5. A slide rail 6 is fixedly connected to the top of the support plate 5. A slider 7 is slidably connected to the outer wall of the slide rail 6. A connecting plate 8 is fixedly connected to the top of the slider 7. The movement of the connecting plate 8 causes the top clamping plate 9 to move. The movement of the clamping plate 9 fixes the lifting ring and locks its position. The side wall of the connecting plate 8 is set on the side wall of the limit plate 20. The bottom of the connecting plate 8 is slidably connected to the top of the support plate 5. The top of the connecting plate 8 is fixedly connected to the clamping plate 9. The side wall of the clamping plate 9 is slidably connected to the outer wall of the limit plate 20. A support block 10 is fixedly connected to the side wall of the connecting plate 8 on the inner wall of the shell 1. A first rotating plate 11 is rotatably connected to the side wall of the support block 10. A second hydraulic cylinder 12 is fixedly connected to the side wall of the first rotating plate 11. The hydraulic cylinder is an HMI-50-100 ultra-high pressure hydraulic cylinder manufactured by Parker, which is used to achieve stable clamping of the lifting ring. This is existing technology and will not be described in detail here. Another first rotating plate 11 is fixedly connected to the output end of the second hydraulic cylinder 12. The bottom of the slider 7 is slidably connected to the top of the support plate 5, and the side wall of the support block 10 is slidably connected to the inner wall of the shell 1.
[0037] Working principle: When using the protective device for the lifting ring tensile test, and when testing the lifting ring, the wrench 14 needs to be turned first. The wrench 14 is subjected to force and rotates on the inner wall of the hollow plate 13. Then, during the rotation of the wrench 14, the second rotating plate 15 on the inner wall will be driven to rotate. At the same time, the second rotating plate 15 will drive the fixed column 16 on the inner wall to move. Next, during the movement of the fixed column 16, the internal locking ring 17 will be driven to move along with the fixed column 16. During the movement of the locking ring 17, it will be pressed against the inside of the locking plate 18. After the locking plate 18 is released from the tension of the locking ring 17, the rotating door 3 can be turned to expose the inside of the outer shell 1. Then the lifting ring measurement can be carried out, which achieves the effect of improving the safety factor.
[0038] Next, when clamping the lifting ring, the output end of the second hydraulic cylinder 12 first drives the first rotating plate 11 to move. Then, when the first rotating plate 11 is under force, it will drive the internal rotating support block 10 to move. Then, when the support block 10 moves, it will drive the connecting plate 8 on the side wall to move. Then, when the connecting plate 8 moves, it will drive the top clamping plate 9 to move, and make the two clamping plates 9 come together. Then, when the connecting plate 8 is under force, it will drive the bottom slider 7 to move. Then, when the slider 7 moves, it slides on the side wall of the slide rail 6, and the slide rail 6 limits the slider 7, thereby achieving the effect of stabilizing the lifting ring.
[0039] 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 protection device for a ring pull test, comprising a housing (1), characterised in that: The inner wall of the outer shell (1) is provided with a connecting component. The top of the outer shell (1) is fixedly connected to a first hydraulic cylinder (2). The output end of the first hydraulic cylinder (2) is fixedly connected to a positioning pin (19). The inside of the outer shell (1) is fixedly connected to a hinge (4). One end of the hinge (4) is fixedly connected to a rotating door (3). The side wall of the rotating door (3) is rotatably connected to the side wall of the outer shell (1). The side wall of the rotating door (3) is fixedly connected to a card plate (18). The side wall of the outer shell (1) is provided with a support component. The support assembly includes a hollow plate (13), the side wall of which is fixedly connected to the side wall of the outer shell (1), a wrench (14) is rotatably connected inside the hollow plate (13), a second rotating plate (15) is rotatably connected inside the wrench (14), a fixing column (16) is fixedly connected inside the second rotating plate (15), a locking ring (17) is fixedly connected to the outer wall of the fixing column (16), and the side wall of the locking ring (17) is disposed on the side wall of the locking plate (18).
2. A protective device for a ring pull test according to claim 1, characterised in that: A support plate (5) is fixedly connected to the inner wall of the outer shell (1), and a limit plate (20) is fixedly connected to the top of the support plate (5).
3. A protective device for a ring pull test according to claim 2, characterised in that: The top of the support plate (5) is fixedly connected to a slide rail (6), and a slider (7) is slidably connected to the outer wall of the slide rail (6).
4. A protective device for a ring pull test according to claim 3, characterised in that: The top of the slider (7) is fixedly connected to a connecting plate (8), and the side wall of the connecting plate (8) is set on the side wall of the limiting plate (20).
5. A protective device for a ring pull test according to claim 4, characterised in that: The bottom of the connecting plate (8) is slidably connected to the top of the support plate (5), and the top of the connecting plate (8) is fixedly connected to the clamping plate (9).
6. A protective device for a ring pull test according to claim 5, characterised in that: The side wall of the clamping plate (9) is slidably connected to the inner wall of the outer shell (1), and the side wall of the connecting plate (8) is fixedly connected to the support block (10).
7. A protective device for a ring pull test according to claim 6, characterised in that: The support block (10) is rotatably connected to a first rotating plate (11), and the first rotating plate (11) is fixedly connected to a second hydraulic cylinder (12) on its side wall. The output end of the second hydraulic cylinder (12) is fixedly connected to another first rotating plate (11).
8. A protective device for a ring pull test according to claim 7, characterised in that: The bottom of the slider (7) is slidably connected to the top of the support plate (5), and the side wall of the support block (10) is slidably connected to the inner wall of the outer shell (1).