A pet cage door lock that locks when closed
By designing a pet cage door lock with a combination of movable locking plate and guide ramp, the problem of existing mechanical locks requiring step-by-step operation is solved, realizing an automatic locking function that locks the door when closed, preventing pets from escaping and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN XINGHAO HARDWARE TECHNOLOGY CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-26
AI Technical Summary
The mechanical locks of existing pet cages require multiple steps to close, making it impossible to achieve "locking upon closing," which makes it easy for users to forget to lock the door, resulting in pets escaping.
A pet cage door lock that locks automatically when the door is closed is designed. Through the cooperation of the movable lock plate and the guide ramp, the lock cylinder automatically falls into the lock groove after the door is closed, realizing automatic locking. Gravity is used and no additional operation is required.
It achieves automatic door locking when the door is closed, preventing pets from escaping due to forgetting to lock the door. It has a simple structure, low cost, requires no additional energy, and reduces deployment and maintenance costs.
Smart Images
Figure CN224282243U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a pet cage door lock, and more particularly to a pet cage door lock that locks when the door is closed. Background Technology
[0002] Currently, pet cages typically use manual mechanical latches to lock the doors, such as bolts or rotating latches. However, these latches require a step-by-step operation: first, close the door; then, align the keyhole; and finally, move the bolt / rotating latch to lock the door. This locking process is quite cumbersome, especially when users are in a hurry to close the door. Existing mechanical latch structures cannot provide an automatic "close and lock" safety mechanism, making it easy for users to forget to lock the cage after closing it, resulting in the pet escaping.
[0003] Therefore, overcoming the aforementioned shortcomings has become an important issue that urgently needs to be addressed by those skilled in the art. Utility Model Content
[0004] This invention overcomes the shortcomings of the above-mentioned technology and provides a pet cage door lock that locks when the door is closed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A pet cage door lock that locks when the door is closed includes a movable lock plate 1 extending vertically on the side of the door away from the hinge and a lock frame 2 fixed to the pet cage. The movable lock plate 1 and the lock frame 2 are arranged adjacent to each other when the door is closed. The movable lock plate 1 is provided with a lock cylinder 3 extending towards the lock frame 2. The front side of the lock frame 2 is provided with a guide slope 21 that gradually rises from front to back. The guide slope 21 is used to abut against the lock cylinder 3 and guide the lock cylinder 3 to rise when the door is closed. The lock frame 2 is also provided with a locking groove 22 that runs through the left and right sides of the lock frame 2. The opening of the locking groove 22 is located at the rear end of the guide slope 21, and the locking groove 22 extends downward from the opening.
[0007] Preferably, the locking groove 22 extends downwards while also gradually extending from back to front.
[0008] Preferably, a V-shaped latch 4, capable of rotating about a horizontal axis, is hinged to the lock frame 2 below the guide slope 21. The V-shaped latch 4 is hinged to the side of the lock frame 2 away from the movable locking piece 1. The V-shaped latch 4 is arranged parallel to the lock frame 2. The V-shaped latch 4 includes a first extension 41 extending obliquely forward and upward from the hinge and a second extension 42 extending obliquely forward and downward from the hinge. The lock frame 2 is also provided with a part located in front of and below the hinge axis of the V-shaped latch 4 to abut against the second extension 42. The V-shaped latch 4 is limited by a pin 23. When the second extension 42 rotates to its limit position and abuts against the pin 23, the lowest end of the guide slope 21 is lower than the end of the first extension 41 and higher than the end of the second extension 42 so that when the door is closed, the lock cylinder 3 can abut against the first extension 41 to push the V-shaped latch 4 to rotate. The second extension 42 is attached to the lock cylinder 3 after the pet cage door is closed. The second extension 42 is provided with a rotating lever 43 that extends horizontally away from the lock frame 2.
[0009] Preferably, the second extension 42 is provided with a groove 44 that can be engaged with the lock cylinder 3 after the door is closed.
[0010] Preferably, the movable lock plate 1 is provided with lock cylinders 3 at both the upper and lower ends, and the lock frame 2 also has two vertically distributed lock cylinders 3 corresponding to each other.
[0011] Preferably, the door lock further includes a lock plate bracket 5 fixed on the pet cage door. The lock plate bracket 5 has a vertical channel 51 for the movable lock plate 1 to be inserted into and move up and down. The upper lock cylinder 3 of the movable lock plate 1 is located above the vertical channel 51, and the lower lock cylinder 3 is located below the vertical channel 51.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This door lock utilizes a combination of a movable locking plate and a guide ramp to automatically engage the lock cylinder in the locking groove once the door is fully closed, preventing the door from being reopened and thus locking the door. Therefore, when using this lock, simply closing the door and ensuring it is fully closed will automatically lock it, eliminating the need for additional, cumbersome locking procedures. This significantly reduces the risk of forgetting to lock the door after closing, effectively preventing pets from escaping. Furthermore, the lock's simple structure utilizes only gravity for locking, requiring no additional power source, resulting in significantly lower deployment and maintenance costs compared to traditional mechanical locks. Attached Figure Description
[0014] Figure 1 This is one of the schematic diagrams of the door lock in this case, which also includes a pet cage.
[0015] Figure 2This is the second schematic diagram of the door lock in this case, in which the door lock is not yet closed.
[0016] Figure 3 This is the third diagram of the door lock in this case, in which the door lock is already closed.
[0017] Figure 4 This is a diagram showing the explosion of the door lock in this case. Detailed Implementation
[0018] The following examples provide a more detailed description of the features and other related characteristics of this utility model, to facilitate understanding by those skilled in the art:
[0019] like Figures 1 to 4 As shown, a pet cage door lock that locks when the door is closed includes a movable lock plate 1 extending vertically and vertically on the side of the door leaf away from the hinge and a lock frame 2 fixed on the pet cage. The movable lock plate 1 and the lock frame 2 are arranged adjacent to each other on the left and right sides after the door leaf is closed. The movable lock plate 1 is provided with a lock cylinder 3 extending towards the lock frame 2. The front side of the lock frame 2 is provided with a guide slope 21 that gradually rises from front to back. The guide slope 21 is used to abut against the lock cylinder 3 and guide the lock cylinder 3 to rise upward when the door leaf is closed. The lock frame 2 is also provided with a locking groove 22 that runs through the left and right sides of the lock frame 2. The opening of the locking groove 22 is located at the rear end of the guide slope 21, and the locking groove 22 extends downward from the opening.
[0020] The lock in this case includes a movable locking plate 1 connected to the door leaf and capable of moving up and down, and a locking frame 2 fixed to the pet cage. When the pet cage door is about to close, the lock cylinder 3 on the movable locking plate 1 will first abut against the guide ramp 21. As the door continues to close, and since the lock cylinder 3 is fixed to the movable locking plate 1, which can move up and down relative to the door leaf, the lock cylinder 3 will gradually rise under the combined effect of the door leaf closing trend and the upward trend of the guide ramp 21. When the door leaf is closed in place, the lock cylinder 3 passes over the guide ramp 21. Since the end of the guide ramp 21 is the opening of the locking groove 22, the movable locking plate 1 will fall under the action of gravity, causing the lock cylinder 3 to fall into the locking groove 22. In this way, the lock cylinder 3 cannot move back and forth without external force, thus preventing the door leaf from being rotated and opened to lock. When the pet cage door needs to be opened, the user only needs to lift the lock cylinder 3 out of the range of the locking groove 22 to open the door normally. After the user releases his hand, the movable lock plate 1 will fall down under the action of gravity so that the lock cylinder 3 can properly abut against the guide slope 21 when closing the door next time.
[0021] As described above, the door lock in this case uses the cooperation of the movable lock plate 1 and the guide ramp 21 to allow the lock cylinder 3 to automatically fall into the locking groove 22 after the door is closed, thus preventing the door from being opened again and achieving locking. Therefore, when using this door lock, simply closing the door and ensuring it is fully closed will automatically lock the door, eliminating the need for additional cumbersome locking operations. This greatly reduces the risk of forgetting to lock the door after closing it, effectively preventing pets from escaping. Moreover, the door lock in this case has a simple structure, utilizing only gravity to achieve locking upon closing, requiring no additional power source. Its deployment and maintenance costs are far lower than traditional mechanical locks.
[0022] like Figures 1 to 4 As shown, preferably, the locking groove 22 extends downwards and gradually extends from back to front. In this way, the locking groove 22 is set to extend downwards and forwards at the same time. After the pet cage door lock is closed, even if the pet bumps against the door lock cylinder 3 inside the cage and shakes forward, it will only continue to go deeper into the locking groove 22 and will not jump up and down, thereby preventing the door from being accidentally opened when the pet bumps against it frequently.
[0023] like Figures 1 to 4 As shown, preferably, a V-shaped latch 4, capable of rotating about a horizontal axis, is hinged to the lock frame 2 below the guide slope 21. The V-shaped latch 4 is hinged to the side of the lock frame 2 away from the movable locking piece 1. The V-shaped latch 4 is arranged parallel to the lock frame 2. The V-shaped latch 4 includes a first extension 41 extending obliquely forward and upward from the hinge and a second extension 42 extending obliquely forward and downward from the hinge. The lock frame 2 is also provided with a part located in front of and below the hinge axis of the V-shaped latch 4 to abut against the second extension 42. 2. A limiting pin 23 restricts the rotation range of the V-shaped latch 4. When the second extension 42 rotates to the limit position and abuts against the limiting pin 23, the lowest end of the guide slope 21 is lower than the end of the first extension 41 and higher than the end of the second extension 42 so that when the door is closed, the lock cylinder 3 can abut against the first extension 41 to push the V-shaped latch 4 to rotate. The second extension 42 is attached to the lock cylinder 3 after the pet cage door is closed. The second extension 42 is provided with a rotating lever 43 that extends horizontally away from the lock frame 2.
[0024] As described above, in the open state, the second extension 42 of the V-shaped latch 4 abuts against the limiting pin 23, allowing the guide slope 21 to lie between the ends of the first extension 41 and the second extension 42, i.e., within the opening of the V-shaped latch 4. Thus, when the door is closed and the lock cylinder 3 rises along the guide slope 21, it also abuts against the V-shaped latch 4, causing it to rotate. After the lock cylinder 3 falls into the locking groove 22, the rotating lever 43 also rotates to above the lock cylinder 3. Under the gravity of the rotating lever 43, the V-shaped latch 4 continues to rotate until the second extension 42 engages with the lock cylinder 3. In this way, when unlocking is required, simply rotating the lever 43 to rotate the second extension 42 will reverse the entire V-shaped latch 4, and the lock cylinder 3 can be pried out of the locking groove 22 by the first extension 41, solving the problem that the lock cylinder 3 is difficult to lift due to the inclined extension of the locking groove 22.
[0025] like Figures 1 to 4 As shown, preferably, the second extension 42 is provided with a groove 44 that can be locked onto the lock cylinder 3 after the door is closed. In this way, the lock cylinder 3 is double-limited by the locking groove 22 and the groove 44, which can further prevent the lock cylinder 3 from shaking under the influence of external force after the door is closed, thereby reducing noise and further reducing the probability of accidental unlocking.
[0026] like Figures 1 to 4 As shown, preferably, the movable lock plate 1 is provided with lock cylinders 3 at both the upper and lower ends, and the lock frame 2 also has two vertically distributed lock frames 2 that correspond one-to-one with the lock cylinders 3. In this way, by cooperating with the two vertically distributed lock frames 2 and lock cylinders 3 to lock the door, the door leaf can be subjected to force evenly, avoiding the door leaf from tilting up and down when subjected to impact due to a single locking point, forming a small opening for the pet to escape.
[0027] like Figures 1 to 4 As shown, preferably, the door lock further includes a lock plate bracket 5 fixed on the pet cage door. The lock plate bracket 5 has a vertical channel 51 for the movable lock plate 1 to be inserted and move up and down. The upper lock cylinder 3 of the movable lock plate 1 is located above the vertical channel 51, and the lower lock cylinder 3 is located below the vertical channel 51. In this way, the movable lock plate 1 can be restricted to move up and down in the vertical channel 51 by the upper and lower lock cylinders 3. At the same time, the range of the movable lock plate 1's up and down movement can also be restricted, thereby ensuring that the lock cylinder 3 can accurately align and contact with the lock frame 2 to realize the function of locking the door, and avoiding the door lock failure due to misalignment between the lock frame 2 and the lock cylinder 3.
[0028] As stated above, this case protects a pet cage door lock that locks when closed, and all technical solutions that are the same as or similar to those in this case should be considered to fall within the scope of protection of this case.
Claims
1. A pet cage door lock that locks upon closing, characterized in that The device includes a movable locking plate (1) that extends vertically and vertically on the side of the door leaf away from the hinge and a locking frame (2) that is fixed on the pet cage. The movable locking plate (1) and the locking frame (2) are arranged adjacent to each other on the left and right sides after the door leaf is closed. The movable locking plate (1) is provided with a lock cylinder (3) that extends toward the locking frame (2). The front side of the locking frame (2) is provided with a guide slope (21) that gradually rises from front to back. The guide slope (21) is used to abut against the lock cylinder (3) and guide the lock cylinder (3) to rise when the door leaf is closed. The locking frame (2) is also provided with a locking groove (22) that runs through the left and right sides of the locking frame (2). The opening of the locking groove (22) is located at the rear end of the guide slope (21). The locking groove (22) extends downward from the opening.
2. The pet cage door lock that locks when closed according to claim 1, characterized in that... The locking groove (22) extends downwards and gradually extends from back to front.
3. A pet cage door lock that locks when closed, as described in claim 2, characterized in that... A V-shaped latch (4) capable of rotating about a horizontal axis is hinged to the lock frame (2) below the guide slope (21). The V-shaped latch (4) is hinged to the side of the lock frame (2) away from the movable locking piece (1). The V-shaped latch (4) is arranged parallel to the lock frame (2). The V-shaped latch (4) includes a first extension (41) extending obliquely forward and upward from the hinge and a second extension (42) extending obliquely forward and downward from the hinge. The lock frame (2) is also provided with a second extension (42) located in front of the hinge axis of the V-shaped latch (4) to abut against the second extension (42) to restrict the V-shape. The limit pin (23) of the rotation range of the latch (4), when the second extension (42) rotates to the limit position and abuts against the limit pin (23), the lowest end of the guide slope (21) is lower than the end of the first extension (41) and higher than the end of the second extension (42) so that when the door is closed, the lock cylinder (3) can abut against the first extension (41) to push the V-shaped latch (4) to rotate. The second extension (42) is attached to the lock cylinder (3) after the pet cage door is closed. The second extension (42) is provided with a rotating lever (43) that extends horizontally away from the lock frame (2).
4. A pet cage door lock that locks when closed according to claim 3, characterized in that... The second extension (42) is provided with a groove (44) that can be locked on the lock cylinder (3) after the door is closed.
5. A pet cage door lock that locks when closed according to claim 1, characterized in that... The movable lock plate (1) is provided with lock cylinders (3) at both the upper and lower ends, and the lock frame (2) also has two lock cylinders (3) distributed at the upper and lower ends, corresponding one-to-one with the lock cylinders (3).
6. A pet cage door lock that locks when closed, as described in claim 5, characterized in that... It also includes a lock plate bracket (5) fixed on the pet cage door, the lock plate bracket (5) having a vertical channel (51) for the movable lock plate (1) to be inserted and moved up and down, the upper lock cylinder (3) of the movable lock plate (1) being located above the vertical channel (51) and the lower lock cylinder (3) being located below the vertical channel (51).