Adjustable self-locking device for construction safety gate
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI HUOYU CONSTR ENG CO LTD
- Filing Date
- 2025-09-09
- Publication Date
- 2026-08-07
AI Technical Summary
[0004]本申请的目的是提供一种建筑施工安全防护门可调节的自锁装置，具备自动将两扇安全防护门进行自锁的优点，解决了插销插入到锁扣时不仅需要人工控制插销移动，且插销容易受施工场地振动、风力或人员碰撞影响，易出现锁舌松动、滑脱现象的问题
1、该一种建筑施工安全防护门可调节的自锁装置，通过转杆、弹簧、推杆、限位板、第一斜板、安装板、固定板、限位杆、拉板、定位板、活动板、弹簧以及第二斜板的设置，使该装置在使用时无需人工手中控制防护门的关闭，其扭簧便可带动转杆转动，以此使推杆推动第一防护门以及第二防护门进行关闭，避免部分人员忘记关闭防护门导致防护门失效，而引发安全事故的问题，而第一防护门以及第二防护门在关闭后，第一斜板可推动限位杆回缩，使两个防护门关闭，而在防护门关闭后，弹簧可推动活动板进而使限位杆进入到限位板的内部，使第一防护门以及第二防护门互相自锁，解决了插销插入到锁扣时不仅需要人工控制插销移动，且插销容易受施工场地振动、风力或人员碰撞影响，易出现锁舌松动、滑脱现象的问题。
Smart Images
Figure CN224606306U_ABST
Abstract
Description
Technical Field
[0001] This application relates to safety doors, and more particularly to an adjustable self-locking device for a construction safety door. Background Technology
[0002] In the construction industry, safety doors are one of the core facilities to ensure the safety of construction areas. They are widely used in dangerous areas such as scaffold passages, elevator shafts, stairwells, and foundation pit edges. Their main function is to prevent construction workers from falling accidentally, unauthorized personnel from entering dangerous areas, or materials from falling and causing safety accidents.
[0003] According to research, most existing safety doors use a bolt inserted into the latch to close the door. However, inserting the bolt into the latch requires manual control of its movement, and the bolt is easily affected by vibrations from the construction site, wind, or collisions with people, which can easily cause the latch to loosen or slip out. Utility Model Content
[0004] The purpose of this application is to provide an adjustable self-locking device for construction safety doors, which has the advantage of automatically locking two safety doors. This solves the problem that when the bolt is inserted into the latch, not only is manual control of the bolt movement required, but the bolt is also easily affected by vibrations, wind, or collisions with personnel at the construction site, which can easily lead to loosening or slippage of the bolt tongue.
[0005] The adjustable self-locking device for a construction safety protection door provided in this application adopts the following technical solution: it includes a frame, a first protection door and a second protection door are rotatably connected to the inner side of the frame, a limit plate is fixedly connected to the side of the second protection door, a first inclined plate is fixedly connected to the side of the limit plate away from the second protection door, an installation plate is fixedly connected to the side of the first protection door, a fixing plate is fixedly connected to the side of the installation plate, a limit rod is slidably connected inside the fixing plate, a through hole adapted to the limit rod is opened inside the limit plate, a movable plate is fixedly connected to the outer side of the limit rod, and a spring is sleeved on the outer side of the limit rod; By adopting the above technical solution, after the first and second protective doors are closed, the first inclined plate can push the limit rod to retract, so that the two protective doors are closed. After the protective doors are closed, the spring can push the movable plate, which in turn causes the limit rod to enter the interior of the limit plate, so that the first and second protective doors are mutually locked. This solves the problem that when the bolt is inserted into the latch, not only is manual control of the bolt movement required, but the bolt is also easily affected by vibration of the construction site, wind or collision of personnel, which can easily cause the bolt to loosen or slip.
[0006] Preferably, a baffle is fixedly connected to the inner side of the frame, a buffer pad is fixedly connected to the side of the baffle, a plurality of magnets are fixedly connected to the side of the baffle, and the buffer pad has a groove adapted to the magnet inside. By adopting the above technical solution, the first and second protective doors can be buffered during use, reducing the impact force when the first and second protective doors are closed. This reduces noise and extends the service life of the protective doors. The magnet can attract the first and second protective doors, preventing them from shaking when there is vibration in the external construction site or strong wind.
[0007] Preferably, a fixed frame is fixedly connected to both ends of one side of the frame, and a rotating rod is rotatably connected inside the fixed frame. The top end of the rotating rod has a groove and is hinged to a push rod. By adopting the above technical solution, the closing of the protective doors can be achieved without manual control. The push rod can push the first and second protective doors to close, avoiding the problem of some people forgetting to close the protective doors, causing them to malfunction and leading to safety accidents. The hinged connection between the push rod and the rotating rod allows the push rod to be rotated to the side of the frame when the first and second protective doors are open for a long time, thereby canceling the limit on the first and second protective doors and allowing them to be open for an extended period of time.
[0008] Preferably, a torsion spring is sleeved on the outer side of the rotating rod, and the two ends of the torsion spring are respectively fixedly connected to the upper and lower ends of the fixing frame; By adopting the above technical solution, the torsion spring can drive the rotating rod to rotate, thereby causing the push rod to rotate and thus automatically close the door.
[0009] Preferably, a movable plate and a fixed plate are fixedly connected to both ends of the spring, and a second inclined plate is fixedly connected to the side of the movable plate away from the mounting plate; By adopting the above technical solution, the spring can push the movable plate to move, thereby causing the limit rod to move, and thus limiting the position of the limit rod. The second inclined plate controls the movement of the movable plate through the second protective door.
[0010] Preferably, a pull plate is fixedly connected to the end of the limiting rod away from the limiting plate, and a positioning plate is fixedly connected to the side of the first protective door. Lock holes are provided inside the pull plate and the positioning plate. By adopting the above technical solution, the locking hole inside the positioning plate can fix the pull plate, thereby completely locking the device after it is installed in an inaccessible position.
[0011] Preferably, a movable frame is fixedly connected to the top of the movable plate, a handle is rotatably connected inside the first protective door, and a push plate is fixedly connected to the outside of the handle; By adopting the above technical solution, the throttle can make the push plate rotate, thereby causing the moving frame to move the movable plate, thus eliminating the self-locking of the device.
[0012] In summary, this application includes at least one of the following beneficial technical effects: 1. This adjustable self-locking device for construction safety doors, through the arrangement of a rotating rod, spring, push rod, limiting plate, first inclined plate, mounting plate, fixing plate, limiting rod, pull plate, positioning plate, movable plate, spring, and second inclined plate, eliminates the need for manual control of the door's closure during use. The torsion spring drives the rotating rod to rotate, which in turn pushes the first and second safety doors to close. This prevents the safety doors from malfunctioning due to some personnel forgetting to close them, thus avoiding safety accidents. After the first and second safety doors are closed, the first inclined plate pushes the limiting rod to retract, closing both doors. After the doors are closed, the spring pushes the movable plate, causing the limiting rod to enter the limiting plate, thus mutually locking the first and second safety doors. This solves the problems of the bolt not only requiring manual control of the bolt's movement when inserted into the latch, but also being susceptible to bolt loosening or slippage due to vibrations, wind, or personnel collisions at the construction site.
[0013] 2. This adjustable self-locking device for a construction safety protection door, through the arrangement of a baffle, a buffer pad, and a magnet, allows the device to buffer the first and second protection doors during use, reducing the impact force when the first and second protection doors close. This reduces noise and extends the service life of the protection doors. The magnet can attract the first and second protection doors, preventing them from shaking when there is vibration in the external construction site or strong winds. Attached Figure Description
[0014] Figure 1 This is an axial view schematic diagram of this application; Figure 2 This is an axial view schematic diagram of the buffer pad of this application; Figure 3 For the purposes of this application Figure 1 Enlarged view of point A; Figure 4 This is a schematic axial sectional view of this application; Figure 5 This is a side-axis view schematic diagram of this application.
[0015] In the picture: 1. Frame; 2. First protective door; 3. Second protective door; 4. Baffle; 5. Buffer pad; 6. Magnet; 7. Fixed frame; 8. Rotating rod; 9. Torsion spring; 10. Push rod; 11. Limiting plate; 12. First inclined plate; 13. Mounting plate; 14. Fixed plate; 15. Limiting rod; 16. Pull plate; 17. Positioning plate; 18. Movable plate; 19. Spring; 20. Second inclined plate; 21. Moving frame; 22. Turning handle; 23. Push plate. Detailed Implementation
[0016] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.
[0017] Example 1: An adjustable self-locking device for a construction safety door, referring to... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5The system includes a frame 1, with a first protective door 2 and a second protective door 3 rotatably connected to the inner side of the frame 1. A limit plate 11 is fixedly connected to the side of the second protective door 3, and a first inclined plate 12 is fixedly connected to the side of the limit plate 11 away from the second protective door 3. A mounting plate 13 is fixedly connected to the side of the first protective door 2, and a fixing plate 14 is fixedly connected to the side of the mounting plate 13. A limit rod 15 is slidably connected inside the fixing plate 14. A through hole adapted to the limit rod 15 is opened inside the limit plate 11. A movable plate 18 is fixedly connected to the outer side of the limit rod 15, and a spring 19 is sleeved on the outer side of the limit rod 15. A baffle 4 is fixedly connected to the inner side of the frame 1, and a buffer pad 5 is fixedly connected to the side of the baffle 4. Multiple magnets 6 are fixedly connected to the side of the baffle 4. The buffer pad 5 has a groove inside that matches the magnet 6. Fixed frames 7 are fixedly connected to both ends of one side of the frame 1. A rotating rod 8 is rotatably connected inside the fixed frame 7. A groove is provided at the top of the rotating rod 8 and a push rod 10 is hinged to it. A torsion spring 9 is sleeved on the outside of the rotating rod 8. The two ends of the torsion spring 9 are fixedly connected to the upper and lower ends of the fixed frame 7, respectively. The two ends of the spring 19 are fixedly connected to the movable plate 18 and the fixed plate 14, respectively. A second inclined plate 20 is fixedly connected to the side of the movable plate 18 away from the mounting plate 13. A pull plate 16 is fixedly connected to the end of the limiting rod 15 away from the limiting plate 11. A positioning plate 17 is fixedly connected to the side of the first protective door 2. Lock holes are provided inside both the pull plate 16 and the positioning plate 17. A movable frame 21 is fixedly connected to the top of the device. A handle 22 is rotatably connected inside the first protective door 2, and a push plate 23 is fixedly connected to the outside of the handle 22. Through the arrangement of the rotating rod 8, spring 19, push rod 10, limiting plate 11, first inclined plate 12, mounting plate 13, fixing plate 14, limiting rod 15, pull plate 16, positioning plate 17, movable plate 18, spring 19, and second inclined plate 20, the device eliminates the need for manual control of the protective door closing during use. The torsion spring 9 drives the rotating rod 8 to rotate, thereby causing the push rod 10 to push the first protective door 2 and the second protective door 3 to close. This prevents the protective doors from failing due to some personnel forgetting to close them, thus avoiding safety accidents. After the first protective door 2 and the second protective door 3 are closed... The first inclined plate 12 can push the limiting rod 15 to retract, closing both protective doors. After the protective doors are closed, the spring 19 can push the movable plate 18, causing the limiting rod 15 to enter the interior of the limiting plate 11, making the first protective door 2 and the second protective door 3 mutually lock. This solves the problem that when the bolt is inserted into the latch, not only is manual control of the bolt movement required, but the bolt is also easily affected by vibrations, wind, or collisions with personnel at the construction site, leading to loosening or slippage of the bolt tongue. Through the arrangement of the baffle 4, buffer pad 5, and magnet 6, the device can buffer the first protective door 2 and the second protective door 3 during use, reducing the impact force when the first protective door 2 and the second protective door 3 close, thus reducing noise and extending the service life of the protective doors.The magnet 6 can attract the first protective door 2 and the second protective door 3, preventing them from shaking when there is vibration or strong wind at the construction site.
[0018] The implementation principle of this application embodiment is as follows: In use, the frame 1 is fixed to the outside. After fixing, the device can be used. When the user opens the first protective door 2 and the second protective door 3, the pull plate 16 needs to be pulled to disengage the limiting rod 15 from the limiting plate 11, and then it can be opened. If the user is not on the side of the pull plate 16, the handle 22 needs to be turned. After the handle 22 is turned, the push plate 23 moves. After the push plate 23 moves, it contacts the moving frame 21 and pushes the moving frame 21 to move. After the moving frame 21 moves, it drives the movable plate 18 to move. After the movable plate 18 moves, the limiting rod 15 disengages from the limiting plate 11, and then the protective door can be opened. Initially, the first protective door 2 and the second protective door 3 push the push rod 10, causing it to rotate. The rotation of the push rod 10 then causes the rotating rod 8 to rotate, which in turn forces the torsion spring 9. When the first protective door 2 and the second protective door 3 close, no manual operation is required; the stressed torsion spring 9 will cause the rotating rod 8 to return to its original position. The rotation of the rotating rod 10 then causes the push rod 8 to move the first protective door 2 and the second protective door 3, thus closing them. The hinged connection between the push rod 10 and the rotating rod 8 allows the push rod 10 to be rotated to the side of the frame 1 when the first protective door 2 and the second protective door 3 are open for an extended period, thereby canceling the first protective door's movement. The limiting positions of door 2 and the second protective door 3 allow the first protective door 2 and the second protective door 3 to remain open for an extended period. When the first protective door 2 and the second protective door 3 close, they will contact the buffer pad 5, which reduces the impact force. Then, the first protective door 2 and the second protective door 3 will contact the magnet 6, thus completing the closure. When the second protective door 3 contacts the magnet 6 first, the first protective door 2 rotates, causing the limiting rod 15 to contact the first inclined plate 12. After contact, the first inclined plate 12 pushes the limiting rod 15 to retract. After the limiting rod 15 retracts, the movable plate 18 pushes the spring 19 and compresses the spring 19. Then, the first protective door 2 contacts the magnet 6, at which point the spring... Spring 19 pushes movable plate 18 to allow limit rod 15 to enter through hole in limit plate 11, thus completing the self-locking of first protective door 2 and second protective door 3. When first protective door 2 contacts magnet 6, second protective door 3 will first contact second inclined plate 20 when closing, and then push second inclined plate 20 to move, thereby causing movable plate 18 to drive limit rod 15 to retract, thus closing second protective door 3. Then limit rod 15 enters the interior of limit plate 11, completing the self-locking of first protective door 2 and second protective door 3. After self-locking, the user can use another lock to connect pull plate 16 and positioning plate 17 as needed, thereby locking first protective door 2 and second protective door 3.
[0019] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. An adjustable self-locking device for a construction safety protection door, comprising a frame (1), characterized in that: The inner side of the frame (1) is rotatably connected to a first protective door (2) and a second protective door (3). A limiting plate (11) is fixedly connected to the side of the second protective door (3). A first inclined plate (12) is fixedly connected to the side of the limiting plate (11) away from the second protective door (3). An installation plate (13) is fixedly connected to the side of the first protective door (2). A fixing plate (14) is fixedly connected to the side of the installation plate (13). A limiting rod (15) is slidably connected inside the fixing plate (14). A through hole adapted to the limiting rod (15) is opened inside the limiting plate (11). A movable plate (18) is fixedly connected to the outside of the limiting rod (15). A spring (19) is sleeved on the outside of the limiting rod (15).
2. The adjustable self-locking device for a construction safety protection door according to claim 1, characterized in that: A baffle (4) is fixedly connected to the inner side of the frame (1), a buffer pad (5) is fixedly connected to the side of the baffle (4), a plurality of magnets (6) are fixedly connected to the side of the baffle (4), and a groove adapted to the magnet (6) is opened inside the buffer pad (5).
3. The adjustable self-locking device for a construction safety protection door according to claim 1, characterized in that: Fixed frames (7) are fixedly connected to both ends of one side of the frame (1). A rotating rod (8) is rotatably connected inside the fixed frame (7). A groove is provided at the top of the rotating rod (8) and a push rod (10) is hinged to it.
4. The adjustable self-locking device for a construction safety protection door according to claim 3, characterized in that: A torsion spring (9) is sleeved on the outside of the rotating rod (8), and the two ends of the torsion spring (9) are respectively fixedly connected to the upper and lower ends of the fixing frame (7).
5. The adjustable self-locking device for a construction safety protection door according to claim 1, characterized in that: The two ends of the spring (19) are respectively fixedly connected to the movable plate (18) and the fixed plate (14), and the movable plate (18) is fixedly connected to the side away from the mounting plate (13) with a second inclined plate (20).
6. The adjustable self-locking device for a construction safety protection door according to claim 1, characterized in that: The end of the limiting rod (15) away from the limiting plate (11) is fixedly connected to a pull plate (16), and the side of the first protective door (2) is fixedly connected to a positioning plate (17). Lock holes are provided inside the pull plate (16) and the positioning plate (17).
7. The adjustable self-locking device for a construction safety protection door according to claim 1, characterized in that: The top of the movable plate (18) is fixedly connected to a movable frame (21), the inside of the first protective door (2) is rotatably connected to a handle (22), and the outside of the handle (22) is fixedly connected to a push plate (23).