A detachable latch-type anti-escape pet cage lock structure

Abstract

This utility model discloses a detachable latch-type anti-escape pet cage lock structure, relating to the field of pet supplies technology, aiming to solve the problem of paint blind spots caused by the installation of existing locks. It includes a first mesh component fixed to the pet cage and having a door opening, a second mesh component blocking the door opening and rotating relative to the first mesh component, and a locking pin element composed of a locking rod and an operating rod. The locking rod slides left and right relative to the second mesh component to achieve locking and unlocking. The operating rod has a locking rod at its head and a bent end towards the locking rod at its tail, forming an anti-escape space with a deformation notch. The relative deformation of the two components can change the diameter of the notch. The second mesh component has a latch, which extends into the anti-escape space to constrain the travel of the locking pin element. This structure achieves quick assembly and disassembly of the locking pin element and the second mesh component through the deformation notch, allowing each component to be painted independently before reassembly, completely eliminating paint blind spots, eliminating the need for touch-up painting, improving product aesthetics and production efficiency, and facilitating easy assembly and disassembly for later maintenance and replacement.

Description

Technical Field

[0001] This utility model relates to the field of pet supplies technology, and in particular to a detachable latch-type anti-escape pet cage lock structure. Background Technology

[0002] In the pet care industry, pet cages, as core equipment for restraining and protecting pets, have always been a focus of industry attention regarding their safety and convenience. Locks, as key components preventing pets from accidentally escaping, directly impact the overall performance of the pet cage. Currently, most mainstream pet cage locks on the market adopt a mechanical pin structure. This structure achieves the locking function through the interlocking of the locking rod and the locking space, and is widely used due to its advantages of simple operation and low manufacturing cost.

[0003] Specifically, the locking mechanism of existing pet cages is typically based on the cage's mesh components. Generally, a through-hole is created in the first mesh component, serving as the passage for the pet to enter and exit the cage. Its edges form the basis for the locking mechanism. To enable the opening and closing of the door, a second mesh component is installed inside the door, rotating relative to the first mesh component. This second mesh component completely covers the door, and its rotational connection usually employs hinges or pivot pins to ensure smooth opening and closing.

[0004] To achieve locking and fixing of the second mesh component with the first mesh component, two symmetrically distributed lugs are typically integrally formed or welded to the outer wall of the second mesh component. The centerlines of the two lugs are collinear and extend horizontally. The locking rod, as the core actuator of the locking function, passes through the central holes of the two lugs in the left-right direction. The part of the rod that passes through the central hole forms a tight fit with the inner wall of the lug. This fit area is crucial for the smooth reciprocating movement of the locking rod, but it also becomes a major blind spot in the subsequent painting process. Meanwhile, to facilitate user operation of the locking rod, a handle is fixed to the section of the locking rod between the two lugs. There are two main ways to connect the handle to the locking rod: one is to first insert the locking rod into the lug, and then fix the handle in a preset position on the locking rod through welding; the other is to integrally form the handle and the locking rod, and then complete the overall assembly of the lock by welding the lugs to the second mesh component. After the locks and mesh are assembled, the pet cage will undergo an overall painting process to improve its appearance and enhance its rust resistance. However, the area where the lock bar and ear mount meet becomes a dead corner that cannot be covered by the paint due to the enclosed space formed after assembly.

[0005] However, both of the above-mentioned lock installation methods have significant structural defects. The most critical problem is that the area where the lock bar passes through the ear canal cannot be effectively painted, requiring further touch-up painting, which is inefficient and affects the uniformity of the product's appearance. Utility Model Content

[0006] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a detachable latch-type anti-escape pet cage lock structure.

[0007] A detachable latch-type anti-escape pet cage lock structure designed for this purpose includes a first mesh component, a second mesh component, and a locking pin element. The first mesh is fixedly installed in the pet cage and has a through doorway running from front to back; The second mesh element is used to block the doorway and is rotatably arranged relative to the first mesh element; The locking pin element includes a locking rod and an operating rod; The locking rod is slidably disposed relative to the second mesh component, so that the locking rod can move between the locked position and the unlocked position; The first end of the operating lever is connected to the locking rod, and its tail end is bent and extended toward the locking rod to form an anti-detachment space with a deformation notch; When the operating lever and the locking lever deform relative to each other, the diameter of the deformation notch can be changed; The second mesh component is provided with a latch, which can at least partially extend into the anti-detachment space, thereby restricting the left and right movement of the locking pin element.

[0008] Preferably, an installation channel extending in the left-right direction is provided between the door latch and the second mesh component, and the locking rod is movably inserted into the installation channel.

[0009] Preferably, the locking rod is configured to move left and right and rotate relative to the second mesh member; A first limiting rod is provided at the end of the locking rod away from the operating rod; the first limiting rod can be hooked and cooperated with the first mesh component, thereby constraining the locking pin element to move towards the unlocking position; A second limiting rod is provided at the end of the operating lever away from the locking rod; the second limiting rod can be hooked and cooperated with the second mesh component, thereby constraining the locking rod to rotate relative to the second mesh component.

[0010] Preferably, the first mesh component has a locking space on the side opposite to the locking rod; When the locking pin element is in the locked position, the locking rod remains inserted in the locking space.

[0011] Preferably, the first mesh component is connected to a latch, and the locking space is located between the latch and the first mesh component.

[0012] Compared with existing technologies, the pet cage lock structure proposed in this application has significant practical value and production advantages. Its beneficial effects are mainly reflected in three core dimensions: improved assembly flexibility, optimized production efficiency, and guaranteed product quality. In assembly and disassembly, this structure utilizes a deformation notch design formed by the cooperation of the operating rod and the locking rod to achieve rapid assembly and disassembly of the locking pin element and the second mesh component. When the locking pin element needs to be disassembled, simply deforming the operating rod and the locking rod relative to each other expands the diameter of the deformation notch, allowing the latch on the second mesh component to smoothly disengage from the anti-detachment space, thus separating the locking pin element from the second mesh component. During assembly, the locking rod and the second mesh component are first slidably connected. Then, external force is applied to deform the operating rod and the locking rod relative to each other to open the deformation notch. Once the latch enters the anti-detachment space, the external force is removed, and the deformation notch returns to its initial diameter. The latch is then confined within the anti-detachment space, thereby restricting the lateral movement of the locking pin element and completing the assembly of the entire lock.

[0013] This detachable assembly method fundamentally solves the problem of paint blind spots caused by pre-fixing in existing locks. During production, the first mesh component, the second mesh component, and the locking pin element can be individually and comprehensively painted, ensuring that every area of ​​each component is evenly coated with paint, completely avoiding localized missed areas. After the painting process of each component is completed, the locking pin element and the second mesh component are assembled according to the above convenient assembly steps, eliminating the need for subsequent touch-up painting. This improvement not only effectively ensures the consistency and aesthetics of the pet cage's appearance and avoids the risk of corrosion caused by exposed missed areas, but also eliminates the tedious touch-up painting process, significantly shortening the production cycle, reducing labor costs and energy consumption, and significantly improving the efficiency of large-scale pet cage production. At the same time, the detachable structure also provides convenience for subsequent maintenance and replacement. When the locking pin element wears out, users can easily disassemble and replace it without modifying the main structure of the pet cage, further improving the user experience and service life of the product. Attached Figure Description

[0014] Figure 1 A 3D structural diagram of a pet cage; Figure 2 One of the structural diagrams showing the second mesh in the open state; Figure 3 The second schematic diagram shows the structure with the second mesh in the open state; Figure 4 This is one of the assembly diagrams of the first and second mesh components; Figure 5 This is the second assembly diagram of the first and second mesh components; Figure 6 A schematic diagram showing the locking pin element in the first unlocked position; Figure 7 A schematic diagram showing the locking pin element in the second unlocked position; Figure 8 A schematic diagram showing the locking pin element in the third unlocked position; Figure 9 This is a three-dimensional structural diagram of the locking pin element. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] See Figures 1 to 9 A detachable latch-type anti-escape pet cage lock structure includes a first mesh 20, a second mesh 30, and a locking pin element 40; the first mesh 20 is fixedly installed in the pet cage 10 and has a through door 200; the second mesh 30 is used to block the door 200 and is rotatably installed relative to the first mesh 20. The locking pin element 40 includes a locking rod 410 and an operating rod 420; the locking rod 410 is slidably disposed relative to the second mesh 30, so that the locking rod 410 can move between the locked position and the unlocked position; the first end of the operating rod 420 is connected to the locking rod 410, and its tail end is bent and extended toward the locking rod 410 to form an anti-detachment space 400 with a deformation notch 401; when the operating rod 420 deforms relative to the locking rod 410, the diameter of the deformation notch 401 can be changed; the second mesh 30 is provided with a latch 50, and the latch 50 can at least partially extend into the anti-detachment space 400, thereby restricting the left and right movement of the locking pin element 40.

[0017] The working principle of this pet cage lock revolves around the cooperation between the locking pin and the door latch. Locking and unlocking are achieved through the deformation control of the operating rod and the sliding operation of the locking bar. The entire process is smooth and convenient. After the lock is assembled, the locking bar is in a free state relative to the second mesh component, allowing it to slide left and right. The door latch extends into the anti-detachment space formed by the operating rod and the locking bar. At this point, the deformation notch maintains its initial diameter, and the door latch is restricted within the anti-detachment space, preventing it from coming out. This, in turn, restricts the locking bar to move only within a preset stroke, providing a stable foundation for locking and unlocking actions.

[0018] When you need to close the pet cage door, first rotate the second mesh component to completely block the opening of the first mesh component. Then, push the operating lever or directly move the locking lever to move it along the sliding trajectory of the second mesh component towards the first mesh component (i.e., move it to the upper locking position). During this process, one end of the locking lever gradually approaches the locking area of ​​the first mesh component, while the latch remains inside the anti-detachment space to limit the locking lever and prevent it from slipping out of the second mesh component due to excessive sliding. When the locking lever reaches the locked position, its end inserts into the locking space of the first mesh component. Through the interlocking action between the locking lever and the locking space, the rotation of the second mesh component is restricted, achieving reliable locking of the door. At this point, the pet cannot push the second mesh component out of the cage.

[0019] When you need to open the doorway, push the operating lever or locking lever in the opposite direction. This will move the locking lever along a sliding path away from the first mesh (i.e., towards the unlocked position). The end of the locking lever will gradually disengage from the locking space of the first mesh, releasing the restriction on the rotation of the second mesh. Once the locking lever has fully moved to the unlocked position, you can directly rotate the second mesh to open the doorway, facilitating pet entry and exit or feeding and cleaning.

[0020] If maintenance or replacement of the locking pin is required during use, external force can be applied to deform the operating lever and the locking rod relative to each other, widening the diameter of the deformation notch. When the notch diameter is larger than the door latch size, the door latch can disengage from the anti-disengagement space as the locking rod moves. At this point, the sliding constraint between the locking rod and the second mesh component is released, allowing the locking pin to be removed entirely. After the operation is completed, reassembly can be performed by reversing the same principle, without affecting the reusability of the lock. Throughout the entire process, the anti-disengagement design of the operating lever and the sliding cooperation of the locking rod provide dual protection, ensuring the stability of the locked state while simplifying the operation process and adapting to the needs of different usage scenarios.

[0021] In this invention, an installation channel 500 extending in the left-right direction is provided between the door latch 50 and the second mesh component 30, and the locking rod 410 is movably inserted into the installation channel 500. The installation channel between the door latch and the second mesh component provides precise left-right sliding guidance for the locking rod. The movable insertion of the locking rod into the channel ensures the smoothness and directionality of the movement of the locking pin element when locking and unlocking, avoiding deviation and jamming, and further enhances the assembly stability of the locking pin element and the second mesh component, providing structural support for the reliable realization of the locking function.

[0022] See Figures 4 to 9The locking rod 410 is configured to move left and right and rotate relative to the second mesh component 30. A first limiting rod 430 is provided at the end of the locking rod 410 away from the operating rod 420. The first limiting rod 430 can engage with the first mesh component 20, thereby constraining the locking pin element 40 to move towards the unlocked position. A second limiting rod 440 is provided at the end of the operating rod 420 away from the locking rod 410. The second limiting rod 440 can engage with the second mesh component 30, thereby constraining the locking rod 410 to rotate relative to the second mesh component 30. In this embodiment, the locking and unlocking principle of the locking pin element is based on a composite action design of "movement + rotation." Reliable locking is achieved through the double engagement constraint of the first and second limiting rods. Unlocking requires sequentially passing through three specific positions to release the constraint. The specific principle is as follows: In the locked state, the locking pin element forms a stable lock through multiple engagements. After the locking rod moves relative to the second mesh member to the locked position, the first limiting rod at the end furthest from the operating rod engages with the first mesh member, directly constraining the locking pin element to move towards the unlocked position. At the same time, the second limiting rod at the end of the operating rod furthest from the locking rod engages with the second mesh member, restricting the rotation of the locking rod relative to the second mesh member and preventing the first limiting rod from disengaging due to the rotation of the locking rod. This double engagement ensures reliable locking.

[0023] The unlocking process requires a specific sequence of steps to release constraints and separate the locking pin from the first mesh component: First, drive the locking pin to move left or right to the first unlocking position. At this point, the engagement between the second limiting rod and the second mesh component is released, and the locking rod gains rotational freedom relative to the second mesh component. Second, rotate the locking pin to drive the first limiting rod to rotate synchronously (rotating around the locking rod as the axis), releasing its engagement with the first mesh component. The locking pin is now in the second unlocking position, and the core locking constraint is completely released. Third, continue driving the locking pin to move left or right to the third unlocking position, completely separating the locking rod from the first mesh component, completing all unlocking actions. At this point, the second mesh component can be freely flipped open.

[0024] In this invention, a locking space 600 is provided on the side of the first mesh component 20 opposite to the locking rod 410. When the locking pin element 40 is in the locked position, the locking rod 410 remains inserted into the locking space 600. The locking space on the first mesh component provides a precise locking positioning point and a guiding foundation for the movement of the locking rod. When the locking pin element is in the locked position, the locking rod is stably inserted into the locking space, forming a rigid locking structure. Even if the locking pin element moves to the first unlocking position or rotates to the second unlocking position, the locking rod remains inserted into the locking space, only separating from the locking space in the final third unlocking position. This combination not only strengthens the connection reliability between the locking pin element and the first mesh component, but also complements the constraint effect of the first and second limiting rods, further improving locking stability, preventing accidental displacement of the locking pin element that could lead to unlocking failure, and reducing the probability of pet escape.

[0025] In this utility model, the first mesh component 20 is connected to a latch 60, and the locking space 600 is disposed between the latch 60 and the first mesh component 20.

[0026] In this invention, a connector 310 is provided on either the left or right side of the second mesh component 30. The connector 310 is sleeved on any one of the rods 210 of the first mesh component 20. The connector 310 is rotatable and can move up and down relative to the rod 210. Multiple connectors 310 can be provided and arranged in the vertical direction. The connector plays a core role in connecting the second mesh component and the first mesh component. Its structural design of being sleeved on the rod of the first mesh component not only provides a stable mounting carrier for the second mesh component, but also allows the second mesh component to flexibly achieve flip-opening and switching between the first and second positions through its rotatable and vertically movable characteristics relative to the rod. This provides basic support for the smooth operation of the "position constraint + locking reinforcement" dual guarantee mechanism, while simplifying the assembly relationship between the two and improving the structural stability.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A detachable latch-type anti-escape pet cage lock structure, comprising a first mesh component (20), a second mesh component (30), and a locking pin component (40); The first mesh (20) is fixedly installed in the pet cage (10) and has a through door (200) that runs from front to back. The second mesh (30) is used to block the doorway (200) and is rotatably arranged relative to the first mesh (20); characterized in that The locking pin element (40) includes a locking rod (410) and an operating rod (420). The locking rod (410) is slidably disposed relative to the second mesh (30) so that the locking rod (410) can move between the locked position and the unlocked position; The first end of the operating lever (420) is connected to the locking lever (410), and its tail end is bent and extended toward the locking lever (410) to form an anti-detachment space (400) with a deformation notch (401). When the operating lever (420) and the locking lever (410) deform relative to each other, the diameter of the deformation notch (401) can be changed; The second mesh (30) is provided with a latch (50), which is at least partially extended into the anti-detachment space (400) to restrict the left and right movement of the locking pin element (40).

2. The detachable latch-type anti-escape pet cage lock structure according to claim 1, characterized in that: An installation channel (500) extending in the left-right direction is provided between the door latch (50) and the second mesh (30), and the locking rod (410) is movably inserted into the installation channel (500).

3. The detachable latch-type anti-escape pet cage lock structure according to claim 1, characterized in that: The locking rod (410) is configured to move left and right and rotate relative to the second mesh (30); The locking rod (410) is provided with a first limiting rod (430) at one end away from the operating rod (420); the first limiting rod (430) can be hooked and cooperated with the first mesh (20) to constrain the locking pin element (40) to move to the unlocking position; The operating lever (420) is provided with a second limiting rod (440) at the end away from the locking rod (410); the second limiting rod (440) can be hooked and cooperated with the second mesh (30) to constrain the locking rod (410) to rotate relative to the second mesh (30).

4. A detachable latch-type anti-escape pet cage lock structure according to any one of claims 1 to 3, characterized in that: The first mesh (20) has a locking space (600) on the side opposite to the locking rod (410). When the locking pin element (40) is in the locked position, the locking rod (410) remains inserted in the locking space (600).

5. The detachable latch-type anti-escape pet cage lock structure according to claim 4, characterized in that: The first mesh component (20) is connected to a latch (60), and the locking space (600) is disposed between the latch (60) and the first mesh component (20).

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