Automatic safety lock
By designing an automated safety lock, using components such as rotating rods and ratchets to automatically lock children's fence doors and prevent children from operating incorrectly, the problem of forgetting to lock the doors and easy to open incorrectly in the existing technology is solved, and safety and stability are improved.
Patent Information
- Application Number
- CN202422035921.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing children's fence safety lock is easily forgotten to lock after closing the fence door, and is easily opened by mistake, reducing safety during use.
An automated safety lock is designed to automatically lock the doorbar after closing by the cooperation of the rotating rod, ratchet and drive spring, and prevent children from opening easily through limit paddles and safety components.
Ensure that the door rail is automatically locked after closing, preventing it from being locked and difficult to be opened by children, improving the safety of the children's fence and stability during use.
Smart Images
Figure CN223135853U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safety locks, in particular to an automatic safety lock. Background Technique
[0002] A children's fence is also called a children's play fence, a play fence, a children's guardrail, a safety guardrail, etc. The children's fences on the market are mainly made of plastic and wooden materials. Its main function is to free the mother's hands and provide a safe and comfortable environment for children. An openable fence door is usually provided at the opening of the children's fence, and the fence door is controlled by a set of safety locks to ensure the stability of the opening and closing state of the fence door.
[0003] The existing safety locks for children's fences usually fix the fence door to the door frame through a set of rotating buckle structures. However, during use, it is very likely to forget to lock the fence door after closing it, and it cannot automatically pop out the door lock core to lock the fence door after closing the fence door, thus reducing the safety during the use of the children's fence. Moreover, the existing fence door locks are easy to open while ensuring easy locking, so it is very easy to cause the safety lock to be accidentally opened. When the fence door is in the open state, it is also easy to accidentally touch the lock core ejection switch, causing the lock core to suddenly pop out, which is very unsafe. Summary of the Utility Model
[0004] The purpose of the utility model is to provide an automatic safety lock to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: an automatic safety lock, including a socket door frame as an installation carrier. One side inside the socket door frame is hinged with a door bar. On the outer side of the socket door frame, away from the hinge axis of the door bar, a lock pin groove is installed. On the outer side of the door bar, close to the lock pin groove, a lock pin chamber is installed. Inside the lock pin chamber, a moving pin plate that cooperates with the lock pin groove is arranged. On the outer side of the lock pin groove, an anti-detachment mechanism that cooperates with the moving pin plate is arranged. At the middle position on the side of the moving pin plate away from the lock pin groove, an installation groove is opened. At the top and bottom of the side of the moving pin plate away from the lock pin groove, connection grooves are symmetrically opened, and a driving spring is installed inside the connection grooves. The side of the driving spring away from the lock pin groove is fixedly connected to the inner wall of the lock pin chamber. At the middle position inside the lock pin chamber, a lock pin adjustment component for controlling the movement of the moving pin plate is arranged.
[0006] Preferably, the lock pin adjustment component includes a rotating rod. At the middle position inside the lock pin chamber, a rotating rod is arranged. At one end of the outer side of the rotating rod, a driving gear is installed. At one end of the inner bottom of the installation groove, close to the driving gear, a fixed rack that meshes with the driving gear is installed. At the end of the outer side of the rotating rod, away from the driving gear, a rotation limiting mechanism is arranged.
[0007] Preferably, the rotation limiting mechanism includes a sleeve sleeved on one end of the rotating rod away from the driving gear. A connecting ring is installed at one end of the sleeve away from the driving gear, and the end of the connecting ring away from the sleeve is fixedly connected to the inner wall of the lock pin chamber. A ratchet wheel and a fixing ring are respectively installed at one end of the rotating rod close to the connecting ring. Four groups of limiting paddles cooperating with the ratchet wheel are evenly installed at one end of the inner wall of the sleeve. A return spring is sleeved on the outer side of the rotating rod close to the connecting ring, and both ends of the return spring are fixedly connected to the fixing ring and the sleeve respectively. A safety component cooperating with the fixed rack is arranged on one side of the lock pin chamber away from the lock pin groove.
[0008] Preferably, the safety component includes a lead screw located on one side of the lock pin chamber away from the lock pin groove. An internally threaded block is threadedly arranged on the outer side of the lead screw. Slide rods are installed on both sides of the lock pin chamber close to the lead screw, and the slide rods penetrate through the internally threaded block. A rack clamping block cooperating with the fixed rack is installed at the bottom of the internally threaded block.
[0009] Preferably, the anti - detachment mechanism includes a limiting card slot located on the outer side of the moving pin plate. An activity plate is hinged at a position on the outer side of the socket door frame close to the lock pin groove, and two groups of connecting springs are installed on the inner side of the activity plate. The sides of the two groups of connecting springs away from the activity plate are fixedly connected to the socket door frame. A limiting block cooperating with the limiting card slot is installed at one end of the inner side of the activity plate close to the door bar.
[0010] Preferably, a connecting bearing is installed at the central position inside the sleeve, and the rotating rod passes through the inner ring of the connecting bearing.
[0011] Preferably, connecting sliding grooves are symmetrically opened at the top and bottom inside the lock pin chamber, and connecting sliding blocks cooperating with the connecting sliding grooves are symmetrically installed at the top and bottom of the moving pin plate.
[0012] Preferably, the same end of the rotating rod and the lead screw extends to the outside of the lock pin chamber and a hand wheel is installed.
[0013] Preferably, inner grooves are opened on the outer sides of the socket door frame and the door bar, and the lock pin groove and the lock pin chamber are both arranged in the inner grooves.
[0014] Beneficial effects
[0015] Compared with the prior art, the present utility model provides an automatic safety lock, which has the following beneficial effects:
[0016] 1. The utility model places a hand on the outer side of the rotating rod and then pushes the door bar to close. When the door bar and the sleeve door frame are completely merged, the door bar can no longer move. At this time, the rotating rod is manually pushed toward the inside of the lock pin bin, forcing the rotating rod to drive the ratchet to move deeply inside the sleeve, so that the limit paddle no longer restricts the rotation of the ratchet. Then, the elastic potential energy of the driving spring pushes the head end of the moving pin plate to quickly snap into the inside of the lock pin groove, so that the safety lock is automatically locked after the door bar is closed, and the situation of forgetting to lock the sleeve door frame will not occur, thereby ensuring the safety of the safety lock during use.
[0017] The locking mechanism of the present invention can be used to lock the door frame by manually rotating the rotating rod in a clockwise direction so that the movable pin plate can no longer be extended from the inside of the lock pin chamber, and the movable pin plate can no longer be quickly ejected from the inside of the lock pin chamber even if the rotating rod is pushed toward the inside of the lock pin chamber, thereby further improving the safety of the fully automatic safety lock during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is the front view of the utility model;
[0019] Figure 2 This is a front cross-sectional view of the utility model;
[0020] Figure 3 It is a first front cross-sectional view of the lock pin bin of the utility model;
[0021] Figure 4 It is a second front cross-sectional view of the lock pin bin of the utility model;
[0022] Figure 5 It is a rear cross-sectional view of the lock pin bin of the utility model;
[0023] Figure 6 It is a three-dimensional schematic diagram of the movable pin plate of the utility model;
[0024] Figure 7 It is a three-dimensional schematic diagram of the connection between the rotating rod and the sleeve of the utility model;
[0025] Figure 8 It is a three-dimensional schematic diagram of the connection between the rotating rod and the return spring of the utility model;
[0026] Figure 9 This is a three-dimensional schematic diagram of the movable plate of the present utility model.
[0027] In the figure:
[0028] 10. Socket door frame; 11. Lock pin groove; 12. Movable plate; 13. Connecting spring; 14. Limit block; 15. Limit card slot;
[0029] 20. Door sill; 21. Lock pin bin; 22. Movable pin plate; 23. Installation groove; 24. Connecting groove; 25. Driving spring;
[0030] 26. Lock pin adjustment component; 260. Connecting bearing; 261. Rotating rod; 262. Driving gear; 263. Sleeve; 264. Connecting ring; 265. Ratchet; 266. Limit dial; 267. Fixed ring; 268. Return spring; 269. Fixed rack;
[0031] 27. Safety component; 271. Lead screw; 272. Internal thread block; 273. Slide bar; 274. Rack block; 28. Connecting chute; 29. Connecting slider. Specific embodiments
[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
[0033] As Figures 1-9 shown, an automatic safety lock includes a socket door frame 10 as an installation carrier. One side inside the socket door frame 10 is hinged with a door sill 20. On the outer side of the socket door frame 10, away from the hinge axis of the door sill 20, a lock pin groove 11 is installed. On the outer side of the door sill 20, close to the lock pin groove 11, a lock pin bin 21 is installed. Inside the lock pin bin 21, a movable pin plate 22 that cooperates with the lock pin groove 11 is provided. On the outer side of the lock pin groove 11, an anti-detachment mechanism that cooperates with the movable pin plate 22 is provided. At the middle position on the side of the movable pin plate 22 away from the lock pin groove 11, an installation groove 23 is opened. At the top and bottom on the side of the movable pin plate 22 away from the lock pin groove 11, connecting grooves 24 are symmetrically opened, and a driving spring 25 is installed inside the connecting groove 24. The side of the driving spring 25 away from the lock pin groove 11 is fixedly connected to the inner wall of the lock pin bin 21. At the middle position inside the lock pin bin 21, a lock pin adjustment component 26 for controlling the movement of the movable pin plate 22 is provided.
[0034] In this embodiment, the locking pin adjusting assembly 26 includes a rotating rod 261. The rotating rod 261 is arranged at the middle position inside the locking pin bin 21. A driving gear 262 is installed at one end of the outer side of the rotating rod 261. A fixed rack 269 meshing with the driving gear 262 is installed at one end of the inner bottom of the installation groove 23 close to the driving gear 262. A rotation limiting mechanism is arranged at one end of the outer side of the rotating rod 261 away from the driving gear 262.
[0035] In this embodiment, the rotation limiting mechanism includes a sleeve 263. The sleeve 263 is sleeved at one end of the outer side of the rotating rod 261 away from the driving gear 262. A connecting ring 264 is installed at one end of the sleeve 263 away from the driving gear 262. And one end of the connecting ring 264 away from the sleeve 263 is fixedly connected with the inner wall of the locking pin bin 21. A ratchet wheel 265 and a fixed ring 267 are respectively installed at one end of the outer side of the rotating rod 261 close to the connecting ring 264. The rotating rod 261 can drive the driving gear 262, the ratchet wheel 265 and the fixed ring 267 to rotate at the same time. Four groups of limiting paddles 266 cooperating with the ratchet wheel 265 are evenly installed at one end of the inner wall of the sleeve 263 away from the connecting ring 264. When the rotating rod 261 is pushed to move inside the connecting ring 264, the limiting paddles 266 can be made to leave the tooth grooves of the ratchet wheel 265. A return spring 268 is sleeved at one end of the outer side of the rotating rod 261 close to the connecting ring 264. And both ends of the return spring 268 are fixedly connected with the fixed ring 267 and the sleeve 263 respectively. When the pushing of the rotating rod 261 is released, the return spring 268 can make the limiting paddles 266 snap into the tooth grooves of the ratchet wheel 265 again. A safety assembly 27 cooperating with the fixed rack 269 is arranged at one side of the inside of the locking pin bin 21 away from the locking pin groove 11.
[0036] In this embodiment, the safety assembly 27 includes a lead screw 271. The lead screw 271 is located at one side of the inside of the locking pin bin 21 away from the locking pin groove 11. An internally threaded block 272 is arranged on the outer side of the lead screw 271 in a threaded manner. Slide rods 273 are installed at both ends of the inside of the locking pin bin 21 close to the lead screw 271. And the slide rods 273 penetrate through the internally threaded block 272. A rack clamping block 274 cooperating with the fixed rack 269 is installed at the bottom of the internally threaded block 272. By rotating the lead screw 271, the internally threaded block 272 is driven to slide on the slide rods 273 until the rack clamping block 274 snaps into the tooth grooves of the fixed rack 269, restricting the movement of the movable pin plate 22 from moving any further.
[0037] In this embodiment, the anti - detachment mechanism includes a limit card slot 15. The limit card slot 15 is located outside the movable pin plate 22. A movable plate 12 is hinged at a position on the outer side of the socket door frame 10 near the lock pin slot 11. And two groups of connecting springs 13 are installed on the inner side of the movable plate 12. The sides of the two groups of connecting springs 13 away from the movable plate 12 are fixedly connected to the socket door frame 10. A limit card block 14 that cooperates with the limit card slot 15 is installed at one end of the inner side of the movable plate 12 near the door bar 20. During the process of the movable pin plate 22 quickly snapping into the lock pin slot 11, the movable pin plate 22 first pushes the movable plate 12 to rotate outward, and the connecting spring 13 is stretched by the force. Then, after the movable pin plate 22 is completely snapped into the lock pin slot 11, the limit card block 14 on the inner side of the movable plate 12 will automatically snap into the limit card slot 15 on the outer side of the movable pin plate 22, restricting the movable pin plate 22 from retracting back into the interior of the lock pin bin 21.
[0038] In this embodiment, a connecting bearing 260 is installed at the central position inside the sleeve 263. The rotating rod 261 passes through the inner ring of the connecting bearing 260, which helps to improve the stability of the rotation of the rotating rod 261.
[0039] In this embodiment, connecting chutes 28 are symmetrically opened at the inner top and inner bottom of the lock pin bin 21. Connecting sliders 29 that cooperate with the connecting chutes 28 are symmetrically installed at the top and bottom of the movable pin plate 22, which helps to improve the stability of the movable pin plate 22 during the process of extending and retracting inside the lock pin bin 21 and can also limit the telescopic distance of the movable pin plate 22.
[0040] In this embodiment, the same end of the rotating rod 261 and the lead screw 271 extends to the outside of the lock pin bin 21 and is installed with a hand wheel, which is convenient for rotating the rotating rod 261 and the lead screw 271 through the hand wheel.
[0041] In this embodiment, inner grooves are opened on the outer sides of the socket door frame 10 and the door bar 20. The lock pin slot 11 and the lock pin bin 21 are both arranged in the inner grooves, which helps to make the planes outside the lock pin slot 11 and the lock pin bin 21 be on the same plane layer as the planes outside the socket door frame 10 and the door bar 20, improving the aesthetics of the safety lock.
[0042] Working principle: First, place your hand on the handwheel outside the rotating rod 261, and then push the door bar 20 to close. When the door bar 20 is completely merged with the socket door frame 10, the door bar 20 can no longer move. At this time, manually push the rotating rod 261 into the inside of the lock pin chamber 21, forcing the rotating rod 261 to drive the ratchet wheel 265 to move deeper into the inside of the sleeve 263, so that the limit dial 266 no longer restricts the rotation of the ratchet wheel 265, and the driving gear 262 and the fixed rack 269 are no longer engaged. Then, the elastic potential energy of the driving spring 25 pushes the head end of the moving pin plate 22 to quickly and automatically snap into the inside of the lock pin groove 11. During this process, the fixed ring 267 pushes the return spring 268 to be compressed and store elastic potential energy. The end of the rotating rod 261 away from the driving gear 262 extends into the inside of the connecting ring 264. After the moving pin plate 22 is completely snapped into the lock pin groove 11 to lock the door bar 20, release the handwheel outside the rotating rod 261. At this time, the elastic potential energy of the return spring 268 pushes the rotating rod 261 to move outside the lock pin chamber 21, and the limit dial 266 is repositioned in the tooth groove of the ratchet wheel 265, and the driving gear 262 and the fixed rack 269 are engaged again. When it is necessary to open the door bar 20, manually rotate the rotating rod 261 clockwise. At this time, the rotating rod 261 cooperates with the driving gear 262 and the fixed rack 269 to drive the moving pin plate 22 to retract into the inside of the lock pin chamber 21. The limit dial 266 cooperates with the ratchet wheel 265 to limit the rotating rod 261 to only rotate clockwise. By rotating the rotating rod 261, the moving pin plate 22 can be quickly retracted into the inside of the lock pin chamber 21, and the driving spring 25 is compressed and stores elastic potential energy. If the children's fence is not used, then manually rotate the lead screw 271, and use the thread action to force the internal thread block 272 to drive the rack block 274 to snap into the tooth groove of the fixed rack 269. During this process, the internal thread block 272 slides on the slide bar 273. This method can also be used when the moving pin plate 22 snaps into the lock pin groove 11, so that the fully automatic safety lock cannot be easily opened.
[0043] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.
[0044] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. An automated safety lock, including a socket doorframe (10) as an installation carrier, characterized in that: On one side inside the socket door frame (10), a door bar (20) is hinged. On the outer side of the socket door frame (10), on the side away from the hinge axis of the door bar (20), a lock pin groove (11) is installed. On the outer side of the door bar (20), on the side close to the lock pin groove (11), a lock pin chamber (21) is installed. Inside the lock pin chamber (21), a movable pin plate (22) that cooperates with the lock pin groove (11) is provided. On the outer side of the lock pin groove (11), an anti - detachment mechanism that cooperates with the movable pin plate (22) is provided. At the middle position on the side of the movable pin plate (22) away from the lock pin groove (11), an installation groove (23) is formed. At the top and bottom on the side of the movable pin plate (22) away from the lock pin groove (11), connection grooves (24) are symmetrically formed, and a driving spring (25) is installed inside the connection groove (24). The side of the driving spring (25) away from the lock pin groove (11) is fixedly connected to the inner wall of the lock pin chamber (21). At the middle position inside the lock pin chamber (21), a lock pin adjustment assembly (26) for controlling the movement of the movable pin plate (22) is provided.
2. An automated safety lock according to claim 1, characterized in that: The lock pin adjustment assembly (26) includes a rotating rod (261). At the middle position inside the lock pin chamber (21), a rotating rod (261) is provided. At one end of the outer side of the rotating rod (261), a driving gear (262) is installed. At one end of the inner bottom of the installation groove (23) close to the driving gear (262), a fixed rack (269) that meshes with the driving gear (262) is installed. At the end of the outer side of the rotating rod (261) away from the driving gear (262), a rotation limiting mechanism is provided.
3. An automated safety lock according to claim 2, characterized in that: The rotation limiting mechanism includes a sleeve (263). The sleeve (263) is sleeved on the outer side of the rotating rod (261) at the end away from the driving gear (262). At the end of the sleeve (263) away from the driving gear (262), a connecting ring (264) is installed, and the end of the connecting ring (264) away from the sleeve (263) is fixedly connected to the inner wall of the lock pin chamber (21). At one end of the outer side of the rotating rod (261) close to the connecting ring (264), a ratchet wheel (265) and a fixed ring (267) are installed respectively. At one end of the inner wall of the sleeve (263), four groups of limiting tabs (266) that cooperate with the ratchet wheel (265) are evenly installed. At one end of the outer side of the rotating rod (261) close to the connecting ring (264), a return spring (268) is sleeved, and both ends of the return spring (268) are fixedly connected to the fixed ring (267) and the sleeve (263) respectively. On the side inside the lock pin chamber (21) away from the lock pin groove (11), a safety assembly (27) that cooperates with the fixed rack (269) is provided.
4. An automated safety lock according to claim 3, characterized in that: The safety component (27) includes a lead screw (271), the lead screw (271) is located on the side of the lock pin bin (21) away from the lock pin slot (11), an internal thread block (272) is threadedly arranged on the outer side of the lead screw (271), slide bars (273) are installed on both ends of the lock pin bin (21) near the lead screw (271), and the slide bars (273) penetrate through the internal thread block (272). A rack block (274) that cooperates with the fixed rack (269) is installed at the bottom of the internal thread block (272).
5. An automated safety lock according to claim 1, characterized in that: The anti - detachment mechanism includes a limit card slot (15), the limit card slot (15) is located on the outer side of the moving pin plate (22). An activity plate (12) is hinged at a position on the outer side of the socket door frame (10) near the lock pin slot (11), and two groups of connecting springs (13) are installed on the inner side of the activity plate (12). The sides of the two groups of connecting springs (13) away from the activity plate (12) are fixedly connected to the socket door frame (10). A limit card block (14) that cooperates with the limit card slot (15) is installed at one end of the inner side of the activity plate (12) near the door bar (20).
6. An automated safety lock according to claim 3, wherein: A connecting bearing (260) is installed at the central position inside the sleeve (263), and the rotating rod (261) passes through the inner ring of the connecting bearing (260).
7. An automated safety lock according to claim 1, characterized in that: Connecting sliding grooves (28) are symmetrically formed at the top and bottom inside the lock pin bin (21), and connecting sliding blocks (29) that cooperate with the connecting sliding grooves (28) are symmetrically installed at the top and bottom of the moving pin plate (22).
8. An automated safety lock according to claim 2, characterized in that: The same end of the rotating rod (261) and the lead screw (271) extends to the outside of the lock pin bin (21) and is installed with a hand wheel.
9. An automated safety lock according to claim 1, characterized in that: Inner grooves are formed on the outer sides of the socket door frame (10) and the door bar (20), and the lock pin slot (11) and the lock pin bin (21) are both arranged in the inner grooves.