With hanging linkage lock

Abstract

This utility model relates to a lock with a hook linkage, including a lock housing, a handle, and a hook lug. One end of the handle is mounted in a handle groove in the lock housing via a pivot, and the other end is a swing end that can be engaged in the handle groove. The hook lug is configured to be confined within the handle groove and can move between a first position and a second position. The hook lug is equipped with a pusher installed in the handle groove. The pusher has a pusher portion corresponding to the bottom of the handle and engaging with the handle's push, and a drive portion linked to the hook lug. In the first position, the hook lug's hook hole end can pass through a hole on the handle for padlock mounting. When the hook lug is moved from the first position to the second position, it moves towards the bottom of the handle groove and pushes the swing end of the handle out of the groove opening via the pusher. When the handle is engaged in the handle groove, the bottom of the handle pushes the pusher and drives the hook lug to move from the second position to the first position. It has the advantages of compact structure and convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically a linkage lock. Background Technology

[0002] Since the handle of a linkage lock is usually embedded in a handle slot in the lock case, during unlocking, one end of the handle needs to be raised and protrude from the handle slot to pull the handle out and complete the unlocking operation. Therefore, the existing method involves installing a torsion spring at the hinge end of the handle. When the handle is engaged in the handle slot, the elasticity of the torsion spring pushes the handle out of the slot. This design has several drawbacks: firstly, it requires the installation of a torsion spring, which demands a certain amount of pre-compression during installation, leading to assembly inconvenience; secondly, feedback from actual use indicates that even in locks with a torsion spring design to drive the handle out, there is still a risk that the handle may become stuck in the handle slot and fail to eject. Therefore, providing a linkage lock that allows the handle to reliably protrude from the handle slot when necessary is a problem that needs to be solved.

[0003] Currently, there are designs that add an assist device to help the handle pop out; this design is found in general linkage locks. In some usage scenarios, to improve the flexibility and anti-theft performance of linkage locks, linkage locks are equipped with a lug for padlocks, and a structure is set on the handle to cooperate with the lug (such as the hole disclosed on the handle in authorization notice number CN 201915722 U). Since the lug occupies the lock installation space, the overall design space of the lock is greatly limited, making it impossible to replicate the existing handle pop-out improvement scheme for use on linkage locks with padlocks, which greatly increases the difficulty of the above-mentioned improvement design of linkage locks. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects of the existing technology and provide a lock with a hanging linkage that has a reliable handle protrusion into the handle groove and a compact structure.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A lock with a hook linkage includes a lock housing, a handle, and a hook lug. The lock housing has a handle groove, one end of the handle is mounted in the handle groove via a pivot, and the other end of the handle is a swing end that can be fastened into the handle groove. The handle has a hook lug engagement structure that, after the handle is fastened into the handle groove, corresponds to and engages with the hook lug for padlock mounting. The hook lug engagement structure is a hole that passes through the handle and allows the hook lug's hook hole end to pass through. The hook lug is slidably disposed within the handle groove along its depth direction. The hook lug is configured to be confined to the lock housing and can move between a first lockable position and a second lockable position. When the hook lug is in the first lockable position, its hook hole end can pass through the hole in the handle to allow the hook hole end to be hooked into the padlock. The direction of movement of the hook lug from the first lockable position to the second lockable position is consistent with the direction of pressing the hook lug towards the bottom of the handle groove. The nose clip is equipped with a pusher, which is installed in the handle groove. The pusher has a pusher part corresponding to the bottom of the handle and cooperating with the handle for pushing, and a drive part for driving the nose clip. The nose clip is linked to the drive unit of the pusher. When the nose clip is moved from the lockable first position to the second position, the pusher pushes the handle swing end protruding from the handle groove. When the handle is engaged in the handle groove, the bottom of the handle pushes the pusher and drives the nose clip to move from the second position to the lockable first position.

[0006] Preferably, the actuating member is a lever structure pivotally hinged to the lock housing in the middle.

[0007] Preferably, the driving part of the actuating member includes a wheel that rotates around a hinge axis, the wheel having meshing teeth, and a rack extending along the depth direction of the handle groove on the nose piece, the rack engaging with the meshing teeth for transmission, and the actuating part being an arm extending radially on the wheel.

[0008] Preferably, a positioning cavity is provided at the bottom of the handle groove, and an installation cover is fastened to the positioning cavity. The installation cover has an clearance opening groove for the actuating part of the actuating member to extend into and a positioning hole for the hanging end of the hook member to extend out. The actuating member is positioned and installed in the positioning cavity and is restricted within the positioning cavity by the installation cover. A concave arc-shaped shaft support surface is provided in the positioning cavity. An axial limiting surface is provided in the installation cover, which is fastened above the arc-shaped shaft support surface and forms an axial positioning hole with the arc-shaped shaft support surface. The root of the hook member is inserted into the positioning cavity. After the pivot of the actuating member is supported by the arc-shaped shaft support surface, the pivot is restricted to the arc-shaped shaft support surface by the axial limiting surface after the installation cover is fastened to the positioning cavity.

[0009] Preferably, the handle includes a metal handle body with a hinge at one end, the bottom of the metal handle body is recessed, a plastic inner liner is provided at the bottom of the handle, the plastic inner liner has a concave shell portion embedded in the recess, the edge of the shell portion extends outward to have a scratch-resistant protrusion padding the edge of the recessed bottom of the handle, and a hole-shaped portion of the nose-hanging fitting structure formed in the concave bottom.

[0010] Preferably, the bottom of the handle has a recess.

[0011] By adopting the above technical solution, the hook-nose component is operated, and the handle is pushed out of the handle slot via the actuating component, enabling the handle to actively protrude from the handle slot. Furthermore, using the hook-nose component as the operating part for the protruding handle has the advantage of a compact structure. It boasts the advantages of a simple and compact overall structure and reliable operation. Another advantage is that as the hook-nose component moves into the handle slot, the height of the hook hole end protruding from the handle slot decreases, thereby increasing the freedom of movement of the operating handle. When the handle is engaged in the handle slot, the handle pushes the hook-nose component back to the first lockable position. That is, after the handle is operated to the correct position, the hook-nose component simultaneously rises and resets, allowing the user to complete the padlock installation in one go without using both hands, avoiding the need to stretch the hook hole end of the hook-nose component to fix the padlock. Therefore, by linking the functional structure of actively pushing out the handle with the hook-nose component, a compact structural arrangement is achieved, and the hook-nose component and handle are operationally linked, making the lock easy to use. The handle uses an inner plastic bushing design to prevent scratches.

[0012] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0013] Figure 1 This is a perspective view of the lock with a hanging linkage of this utility model; Figure 2 This is an exploded view of the lock with hanging linkage of this utility model; Figure 3 This is a diagram showing the lockable state of the hook-nose component with hook-link lock according to this utility model; Figure 4 This is a second position view of the hook-nose component with hook-link lock of this utility model; Figure 5 This is a schematic diagram of the lock shell of this utility model. Detailed Implementation

[0014] See appendix Figures 1-5This utility model discloses a lock with a hook linkage, including a lock housing 1, a handle 2, and a hook lug 3. The lock housing 1 has a handle groove 11. One end of the handle 2 is installed in the handle groove 11 via a pivot 2-1, and the other end of the handle 2 is a swing end that can be snapped into the handle groove 11. The handle 2 has a hook lug engagement structure that, after the handle 2 is snapped into the handle groove 11, corresponds to and cooperates with the hook lug 3 for padlock mounting. In this specific embodiment, the hook lug engagement structure is a hole 21 that passes through the handle 2 and allows the hook hole end 31 of the hook lug 3 to pass through. Specifically, when the handle 2 is snapped into the handle groove 11, the hook hole end 31 of the hook lug 3 passes through the hole 21 of the handle 1, so that the hook hole end 31 can be hooked onto the handle 2 to lock the handle 2. To solve the problem that the handle 2 of the lock with hook linkage in the prior art has the risk of not being able to pop out, the hook lug 3 is configured to be restricted to the first lockable position on the lock housing 1 (e.g., Figure 3 (as shown in the state) and second position (as shown in the state) Figure 4 The hook nose 3 can be moved between the states shown, so that it can be operated to move between a lockable first position and a second position. The hook nose 3 is equipped with a pusher 4, which has a pusher part 41 corresponding to the bottom of the handle 2 and engaging with the handle 2, and a drive part 42 for driving the hook nose 3. When the hook nose 3 is in the lockable first position, it engages with the hook nose engaging structure to be hooked into a padlock. When the hook nose 3 is operated from the lockable first position to the second position, the pusher 4 pushes the handle 2's swing end protruding from the handle groove 11 (as shown in the figure). Figure 4 (As shown in the diagram). The operation of the nose clip 3 allows the handle 2 to be ejected from its swing end, enabling the handle 2 to be actively protruded from the handle groove 11, ensuring reliable protrusion of the handle from the groove opening. Simultaneously, this design achieves a multi-functional design for a single component, resulting in a compact overall structure. Furthermore, in this design, the nose clip is a necessary operating part for locking and unlocking the handle; ejecting the handle via this part makes the operation more seamless and convenient to use. In this design, the hinge end of the handle 2 can be designed without a torsion spring.

[0015] The nose clip 3 is linked to the drive part 42 of the actuating member 4. When the handle 2 is engaged in the handle slot 11, the bottom of the handle 2 actuates the actuating member 4, driving the nose clip 3 from the second position to the lockable first position. This achieves the following: when the handle is engaged in the handle slot, the handle presses against the actuating part of the actuating member, which, via the drive part, moves the nose clip, resetting it from the second position to the lockable first position. This linked design reduces the number of parts required.

[0016] As discussed above, to achieve a simpler and more compact structure, and to facilitate the installation and arrangement of the movable nose piece of this utility model, the preferred design is a nose piece mating structure consisting of a hole 21 that passes through the handle 2 and allows the hanging hole end 31 of the nose piece 3 to pass through. The nose piece 3 and the actuating member 4 are installed in the handle groove 11, and the nose piece 3 is slidably disposed in the handle groove 11 along the depth direction X. The root of the nose piece 3 and the actuating member 4 are hidden within the handle groove 11, utilizing the thickness of the lock housing 1 for installation and arrangement. Furthermore, the direction of movement of the nose piece 3 is adapted to the spring-up direction of the handle 2. This makes the installation and arrangement of the nose piece 3 more convenient and reliable, and the mating structure more compact. For example, the hole size on the handle 2 can be designed as compactly as possible, resulting in more stable and reliable operation of the nose piece.

[0017] To achieve a more convenient and reliable handle pop-out operation, the direction of movement of the nose piece 3 from the lockable first position to the second position corresponds to the direction of pressing the nose piece 3 towards the bottom of the handle slot 11. By pressing the nose piece 3 towards the bottom of the handle slot 11, the swing end of the handle 2 protrudes out of the handle slot 11, making operation easier and more convenient. Furthermore, the force on the nose piece 3 is more rationally distributed, reducing the risk of damage. The nose piece design also occupies less space and has a more compact structure. When the handle is snapped into the handle slot, the nose piece 3 is lifted and reset via the handle's movement.

[0018] In the above-described lock design, during unlocking, the hook lug is pressed into the handle slot, causing the handle to be pushed out of the slot, thus actively pushing the handle out. Simultaneously, the protrusion of the hook arm's hole end from the handle slot decreases, increasing the handle's freedom of movement. During locking, the handle is engaged in the handle slot, pushing the hook lug back to the first lockable position. That is, once the handle is in position, the hook lug simultaneously rises and resets. Users can complete padlock installation in one go without using both hands, avoiding the need to stretch the hook lug's hole end to secure the padlock. This design achieves a compact form factor and synergistic operation, making the lock easy to use.

[0019] Furthermore, the actuating member 4 is a lever structure hinged to the lock housing 1 via a pivot 43 in the middle. This design simplifies the actuating member's structure and ensures reliable operation. Pressing the hanging nose member 3 enables the actuating member 4 to move the handle 2 towards the pop-out handle slot 11. Under the guidance of this utility model, those skilled in the art can also make corresponding modifications, such as designing the actuating member as a sliding rack and pinion, connecting the actuating member to the hanging nose member via a gear, and using the rack and pinion design to achieve the desired effect, etc.

[0020] A further detailed design is as follows: the driving part 42 of the actuating member 4 includes a wheel 421 that rotates around a hinge axis, with meshing teeth 422 on the wheel 421. A rack part 32 extending along the depth direction of the handle groove 11 is provided on the nose piece 3. The rack part 32 meshes with the meshing teeth 422 for transmission. The actuating part 41 is an arm extending radially from the wheel 421. The actuating member and the nose piece achieve transmission and linkage through the meshing of the teeth, offering advantages of stable and reliable operation. Furthermore, when the handle presses against the actuating part of the actuating member, the nose piece can be reset via the actuating member. While the driving part could also be a rod-like structure extending into the bottom of the nose piece under the lever structure of the actuating member, this suffers from loose connection and insufficient operational reliability. Therefore, a tooth meshing method is preferred.

[0021] In one embodiment of this utility model, a positioning cavity 12 is provided in the bottom recess of the handle groove 11. A mounting cover 13 is fastened to the positioning cavity 12. The mounting cover 13 is provided with an avoidance opening groove 131 for the pushing part 41 of the pushing member 4 to extend into, and a positioning hole 132 for the hanging hole end 31 of the hanging nose member 3 to extend out. The pushing member 4 is positioned and installed in the positioning cavity 12 and is restricted in the positioning cavity 12 by the mounting cover 13. The positioning cavity 12 is provided with a concave arc-shaped arc shaft support surface 121. That is, the positioning cavity 12 includes a cavity part for positioning the hanging nose member 3 and a part for the pushing member 41 to extend into. The cavity portion for positioning and installing component 4 has an axial limiting surface 133 inside the mounting cover 13. This surface fastens above the arc-shaped shaft support surface 121 and forms an axial positioning hole with the arc-shaped shaft support surface 121. The root of the nose piece 3 is inserted into the positioning recess 12. After the pivot 43 of the pusher 4 is supported by the arc-shaped shaft support surface 121, the mounting cover 13 is then closed. The hanging hole end 31 of the nose piece 3 extends from the positioning hole 132. The axial limiting surface 133 of the mounting cover 13 restricts the pivot 43 on the arc-shaped shaft support surface 121. The mounting cover 13 then confines the nose piece 3 and the pusher 4 within the positioning recess 12. This achieves convenient and reliable positioning and installation of the nose piece and the pusher.

[0022] To address the issue of jamming between the handle and the lock housing, and to protect both the lock housing and the handle, the design was further optimized by incorporating a separate, modular handle assembly. Specifically, the handle 2 includes a metal handle body 22 with a hinge at one end. The bottom of the grip 221 of the metal handle body 22 is recessed 2211, and a plastic inner sleeve 23 is provided at the bottom of the grip 221. The plastic inner sleeve 23 has a concave housing portion 231 embedded in the recess, and an anti-scratch protrusion 232 extending outward from the edge of the housing portion 231, which is placed along the edge of the recess 2211 at the bottom of the grip 221. A perforated portion 233, forming a hole in the concave bottom, is also present for the hook-fitting structure. This plastic inner sleeve provides protection, thereby reducing damage caused by impacts between the handle and the lock housing, and between the handle and the hook-fitting component. In addition, the recessed bottom plate of the handle also serves to avoid the installation area of ​​the nose clip, preventing the part of the nose clip that is fixed from protruding when the handle is snapped in (in a specific embodiment, the recess is formed by a concave plastic inner sleeve; of course, in the case of an integrated handle design, the recess can be formed directly on the bottom wall of the handle). This avoids the position of the nose clip and makes the structure compact.

Claims

1. A padlock with a hook linkage, comprising a lock housing, a handle, and a hook lug, wherein the lock housing has a handle groove, one end of the handle is mounted in the handle groove via a pivot, and the other end of the handle is a swing end that can be snapped into the handle groove; the handle has a hook lug engagement structure that, after the handle is snapped into the handle groove, corresponds to and engages with the hook lug for padlock mounting, wherein the hook lug engagement structure is a hole that passes through the handle and allows the hook hole end of the hook lug to pass through, characterized in that: The hook nose is slidably disposed within the handle groove along the depth direction of the handle groove. The hook nose is configured to be confined to the lock housing and can move between a first lockable position and a second lockable position. When the hook nose is in the first lockable position, its hook hole end can pass through the hole in the handle to allow the hook hole end to be hooked into the padlock. The direction of operation of the hook nose moving from the first lockable position to the second lockable position is consistent with the direction of pressing the hook nose towards the bottom of the handle groove. The nose clip is equipped with a pusher, which is installed in the handle groove. The pusher has a pusher part corresponding to the bottom of the handle and cooperating with the handle for pushing, and a drive part for driving the nose clip. The nose clip is linked to the drive unit of the pusher. When the nose clip is moved from the lockable first position to the second position, the pusher pushes the handle swing end protruding from the handle groove. When the handle is engaged in the handle groove, the bottom of the handle pushes the pusher and drives the nose clip to move from the second position to the lockable first position.

2. The lock with a hanging linkage according to claim 1, characterized in that: The actuating component is a lever structure that is pivotally hinged to the lock housing in the middle.

3. The lock with a hanging linkage according to claim 2, characterized in that: The driving part of the actuating member includes a wheel that rotates around a hinge axis, the wheel having meshing teeth, and a rack extending along the depth direction of the handle groove on the nose piece. The rack meshes with the meshing teeth for transmission, and the actuating part is an arm extending radially on the wheel.

4. The lock with a hanging linkage according to claim 2, characterized in that: A positioning cavity is provided at the bottom of the handle groove. A mounting cover is fastened to the positioning cavity. The mounting cover has a clearance opening groove for the pushing part of the pushing member to extend into and a positioning hole for the hanging end of the hook member to extend out. The pushing member is positioned and installed in the positioning cavity and is restricted within the positioning cavity by the mounting cover. A concave arc-shaped shaft support surface is provided in the positioning cavity. A shaft limiting surface is provided in the mounting cover, which is fastened above the arc-shaped shaft support surface and forms a shaft positioning hole with the arc-shaped shaft support surface. The root of the hook member is inserted into the positioning cavity. After the pivot of the pushing member is supported by the arc-shaped shaft support surface, the pivot is restricted to the arc-shaped shaft support surface by the shaft limiting surface after the mounting cover is fastened to the positioning cavity.

5. The lock with a hanging linkage according to claim 1, characterized in that: The handle includes a metal handle body with a hinge at one end. The bottom of the metal handle body is recessed, and a plastic inner liner is provided at the bottom of the handle. The plastic inner liner has a concave shell portion that is embedded in the recess. The edge of the shell portion extends outward to have a scratch-resistant protrusion that is placed on the edge of the recessed bottom of the handle, and a hole-shaped portion of the nose-hanging fitting structure that forms a hole in the concave bottom.

6. The lock with a hanging linkage according to claim 1, characterized in that: The bottom of the handle has a recess.

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