Springback type locking device
By designing a spring-loaded locking device, and utilizing the cooperation of the handle and the return spring, the isolation door can be opened and closed quickly, solving the problem of frequent locking affecting emergency evacuation and improving the efficiency of safety isolation.
Patent Information
- Application Number
- CN202423212039.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing technologies, the frequent locking and unlocking processes affect the efficiency of emergency response for staff, making it impossible to effectively avoid safety hazards.
A spring-loaded locking device was designed. The handle rotates the bearing to drive the pin to disengage from the arc groove to open the isolation door, and the return spring returns the pin to lock into the groove to achieve rapid closing. It is suitable for safety isolation and locking protection.
It enables rapid opening and closing of isolation doors, improves emergency evacuation efficiency, and meets the safety isolation needs of frequent opening.
Smart Images
Figure CN223781294U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of security isolation technology, specifically a spring-loaded locking device. Background Technology
[0002] In recent years, with increasingly stringent safety management requirements, but with production safety awareness not keeping pace, various safety hazards still occur during production. Therefore, in order to avoid safety hazards during production, it is necessary to set up isolation and lock protection. Locking is the best protection method, but during frequent opening or emergency evacuation, locks can become obstacles and affect the efficiency of emergency evacuation for workers. Utility Model Content
[0003] The purpose of this invention is to provide a spring-loaded locking device to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a spring-loaded locking device, comprising a first mounting plate and a second mounting plate, the first mounting plate being disposed on one side of the second mounting plate, both ends of the first mounting plate and the second mounting plate having reserved holes, screws being installed inside the reserved holes, a connecting shaft being fixedly connected to the middle of the top of the first mounting plate, a bearing being fixedly connected to the outer side of the connecting shaft, a pin being welded to the surface of the bearing, a handle being welded to the top of the pin near the bearing, a connecting rod being welded to the surface of the bearing, and a first limiting plate being welded to the surface of the bearing.
[0005] As a further preferred embodiment of this technical solution, the connecting rod and the pin are arranged in opposite directions, and the included angle between the first limiting plate and the connecting rod and the pin is 90°.
[0006] As a further preferred embodiment of this technical solution, a second limiting plate is fixedly connected to the top of the first mounting plate, and a connector is fixedly connected to the top of the first mounting plate.
[0007] As a further preferred embodiment of this technical solution, a return spring is provided between the connector and the connecting rod. A through hole is provided on the top surface of the connector. One end of the return spring passes through the through hole and is located on the outside of the connector, while the other end of the return spring is located on the outside of the connecting rod.
[0008] As a further preferred embodiment of this technical solution, a limiting piece is fixedly connected to the outer side of one end of the connecting rod.
[0009] As a further preferred embodiment of this technical solution, a connecting plate is fixedly connected to the top edge of the second mounting plate, one end of the connecting plate is provided with an arc-shaped groove, and one end of the pin is disposed inside the arc-shaped groove.
[0010] This utility model provides a spring-loaded locking device with the following advantages: By rotating the handle and bearing, the pin can be disengaged from the arc groove, thus opening the isolation door. Releasing the handle causes the return spring to rotate instead of the bearing, causing the pin to return to its original position and engage in the arc groove, thus closing the isolation door. This achieves the purpose of quickly opening and closing the isolation door and is suitable for security isolation and locking protection on isolation doors that need to be opened frequently. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0012] Figure 2 This is an enlarged schematic diagram of the structure at point A of this utility model;
[0013] Figure 3 This is a schematic diagram of the first limiting plate structure of this utility model;
[0014] Figure 4 This is a schematic diagram of the connecting plate structure of this utility model.
[0015] In the diagram: 1. First mounting plate; 2. Second mounting plate; 3. Reserved hole; 4. Connecting shaft; 5. Bearing; 6. Pin; 7. Handle; 8. Connecting rod; 9. Limiting plate; 10. Return spring; 11. Connecting piece; 12. Through hole; 13. First limiting plate; 14. Second limiting plate; 15. Connecting plate; 16. Arc groove. Detailed Implementation
[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0017] This utility model provides a technical solution: such as Figure 1 , Figure 2 and Figure 3 As shown in this embodiment, a spring-loaded locking device includes a first mounting plate 1 and a second mounting plate 2. The first mounting plate 1 is disposed on one side of the second mounting plate 2. Both ends of the first mounting plate 1 and the second mounting plate 2 have pre-drilled holes 3. Screws are installed inside the pre-drilled holes 3. A connecting shaft 4 is fixedly connected to the center of the top of the first mounting plate 1. A bearing 5 is fixedly connected to the outer side of the connecting shaft 4. A pin 6 is welded to the surface of the bearing 5. A handle 7 is welded to the top of the pin 6 near the bearing 5. A connecting rod 8 is welded to the surface of the bearing 5, and a first limiting plate 13 is welded to the surface of the bearing 5. The first mounting plate 1 and the second mounting plate 2 can be fixed to the surface of the isolation door through the pre-drilled holes 3 and screws. After fixing, the first mounting plate 1 and the second mounting plate 2 should be positioned at the near ends of the two isolation doors.
[0018] The connecting rod 8 and the pin 6 are arranged in opposite directions, and the angle between the first limiting plate 13 and the connecting rod 8 and the pin 6 is 90°.
[0019] The top of the first mounting plate 1 is fixedly connected to the second limiting plate 14, and the top of the first mounting plate 1 is fixedly connected to the connector 11. The second limiting plate 14 is used to cooperate with the first limiting plate 13 to limit the reset spring 10.
[0020] A return spring 10 is provided between the connector 11 and the connecting rod 8. A through hole 12 is provided on the top surface of the connector 11. One end of the return spring 10 passes through the through hole 12 and is located on the outside of the connector 11. The other end of the return spring 10 is located on the outside of the connecting rod 8. The return spring 10 is hooked on the outside of the connector 11 and the connecting rod 8 respectively by the hook design at both ends. When the bearing 5 is rotated by the handle 7, the connecting rod 8 will stretch the return spring 10. When the handle 7 is released, the return spring 10 will return to its original position. During the return process, the bearing 5 will be pulled to rotate by the connecting rod 8, so that the bearing 5 returns to its original position.
[0021] A limiting piece 9 is fixedly connected to the outer side of one end of the connecting rod 8. The limiting piece 9 is used to prevent the return spring 10 from detaching from the connecting rod 8.
[0022] like Figure 1 and Figure 4 As shown, a connecting plate 15 is fixedly connected to the top edge of the second mounting plate 2. One end of the connecting plate 15 is provided with an arc-shaped groove 16. One end of the pin 6 is set inside the arc-shaped groove 16. The arc-shaped groove 16 is used to limit the pin 16. After the pin 16 is inserted into the arc-shaped groove 16, the isolation door can be closed to prevent the isolation door from opening.
[0023] This utility model provides a spring-loaded locking device, the specific working principle of which is as follows: by rotating the bearing 5 through the handle 7, the bearing 5 drives the pin 16 to disengage from the arc groove 16, thus opening the isolation door. Then, by releasing the handle 7, the return spring 10 will return to its original position. During the return process, the bearing 5 will be rotated through the connecting rod 8, causing the pin 6 to re-engage in the arc groove 16. During this period, the first limiting plate 13 and the second limiting plate 14 will contact each other to prevent the return spring 10 from excessively rebounding.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A spring-loaded locking device, comprising a first mounting plate (1) and a second mounting plate (2), characterized in that: The first mounting plate (1) is disposed on one side of the second mounting plate (2). Both ends of the first mounting plate (1) and the second mounting plate (2) are provided with reserved holes (3). Screws are installed inside the reserved holes (3). A connecting shaft (4) is fixedly connected to the middle of the top of the first mounting plate (1). A bearing (5) is fixedly connected to the outside of the connecting shaft (4). A pin (6) is welded to the surface of the bearing (5). A handle (7) is welded to the top of the pin (6) near the bearing (5). A connecting rod (8) is welded to the surface of the bearing (5). A first limiting plate (13) is welded to the surface of the bearing (5).
2. The spring-loaded locking device according to claim 1, characterized in that: The connecting rod (8) and the pin (6) are arranged in opposite directions, and the angle between the first limiting plate (13) and the connecting rod (8) and the pin (6) is 90°.
3. The spring-loaded locking device according to claim 1, characterized in that: The top of the first mounting plate (1) is fixedly connected to a second limiting plate (14), and the top of the first mounting plate (1) is fixedly connected to a connector (11).
4. The spring-loaded locking device according to claim 3, characterized in that: A return spring (10) is provided between the connector (11) and the connecting rod (8). A through hole (12) is provided on the top surface of the connector (11). One end of the return spring (10) passes through the through hole (12) and is located on the outside of the connector (11). The other end of the return spring (10) is located on the outside of the connecting rod (8).
5. A spring-loaded locking device according to claim 1, characterized in that: A limiting piece (9) is fixedly connected to the outer side of one end of the connecting rod (8).
6. The spring-loaded locking device according to claim 1, characterized in that: A connecting plate (15) is fixedly connected to the top edge of the second mounting plate (2). One end of the connecting plate (15) is provided with an arc groove (16), and one end of the pin (6) is located inside the arc groove (16).