Lock box

By incorporating an anti-pull-off device and an adjustable transmission rod inside the lock box housing, increasing the center distance, and equipping it with clamping block screws, the problem of deviation during lock box installation is solved, achieving convenient installation and profile compatibility, and preventing damage.

CN223824763UActive Publication Date: 2026-01-23ANHUI WEIGES HARDWARE PRODUCTS CO LTD
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Patent Information

Application Number
CN202520025286.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2026-01-23
Estimated Expiration
2035-01-06

AI Technical Summary

Technical Problem

Existing lock boxes suffer from inconsistent screw lengths during installation, leading to high connection strength and easy damage from pulling. Furthermore, they are incompatible with lock boxes without base handles on the market.

Method used

A lock box shell was designed with an anti-pull-off device and an adjustable transmission rod inside, which increases the adjustable center distance. It is equipped with clamping block screws and clamping blocks, which realizes flexible installation and adjustment and is compatible with different profiles.

Benefits of technology

It solves the problem of deviation during lock box installation, ensuring convenient and quick installation, preventing damage, and is compatible with all profiles on the market, thus improving ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lock box which comprises a lock box outer shell A. A lock box outer shell B is arranged on the front face of the lock box outer shell A. A gear is movably connected into the lock box outer shell A. According to the utility model, after the improved anti-deviation device is adopted, the shell of the lock box is provided with two anti-deviation devices with the center distance of 43mm (the center distance of 20mm is added after the center distance of 43mm is ensured) and the anti-deviation device can stretch and retract freely, and the anti-deviation device is compatible with a base-free lock box in the market, so that the lock box cannot deviate in a notch; when a screw is turned, the anti-deviation device extends outwards in the clockwise direction of the screw to be tightly attached to the wall thickness of a sectional material, and when a handle is disassembled, the anti-deviation device retracts inwards in the anticlockwise direction of the screw and completely retracts into a lock box shell A, and therefore installation is convenient and fast. The device has a fault-tolerant function when a transmission part is deviated during installation by a customer, can be adjusted leftwards and rightwards by about 4mm, and has the advantage of convenience in use.
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Description

Technical Field

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

[0002] The original lock boxes on the market only met the international standard of 43 center distance for the handle. After continuous updates and upgrades, a baseless handle appeared, and a matching lock box was also born.

[0003] The existing lock box is simply fixed by drilling holes in the outer shell. During installation, deviations can occur due to factors such as the length of the screws. This also results in the screws being too strong when connecting the lock box and the handle, which can damage the lock box. Therefore, the lock box needs to be redesigned to effectively prevent it from being easily damaged. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a lock box that is easy to use. It solves the problem that existing lock boxes are simply fixed by opening holes in the outer shell, and that deviations can occur due to factors such as the length of the screws during installation. This also leads to the problem that the screws are too strong when connecting the lock box and the handle, causing damage to the lock box.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lock box, including a lock box shell A, a lock box shell B on the front side of the lock box shell A, a gear movably connected inside the lock box shell A, a positioning spring movably connected inside the lock box shell A, anti-pull-off springs on both sides inside the lock box shell A, the anti-pull-off springs being movably connected to the lock box shell B, an adjustable transmission rod movably connected to the surface of the lock box shell B, the adjustable transmission rod being movably connected to the lock box shell A, the gear meshing with the adjustable transmission rod, and anti-pull-off springs on both sides inside the lock box shell A.

[0006] As a preferred embodiment of this utility model, clamping block screws are movably connected to both sides of the bottom of the adjustable transmission rod, and clamping blocks are movably connected to both sides of the top of the lock box housing A. The top of the clamping block screws extends through to the top of the lock box housing A and is threadedly connected to the clamping blocks.

[0007] As a preferred embodiment of this utility model, adjustable hangers are movably connected to both sides of the adjustable transmission rod, adjustable screws are movably connected to both sides of the adjustable transmission rod, the adjustable screws are in contact with the adjustable hangers, and hanger pressure blocks are movably connected to both sides of the adjustable transmission rod.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] 1. This utility model adopts an improved anti-pull-off device, which has two center distances (ensuring a 43mm center distance and then adding a 20mm center distance) on the outer shell of the lock box. It is a freely retractable anti-pull-off device, compatible with baseless lock boxes on the market. This prevents the lock box from shifting in the slot. When tightening the screw, the anti-pull-off device extends outward with the screw clockwise and fits tightly against the profile wall thickness. When removing the handle, the anti-pull-off device retracts inward with the screw counterclockwise and completely retracts into the lock box shell A, making installation convenient and quick. This device has separate hanging devices at both ends of the adjustable transmission rod, which solves the problem of deviation in the transmission part during installation and provides a fault tolerance function. It can be adjusted left and right by about 4mm. This device has the advantage of being easy to use.

[0010] 2. With the setting of clamping block screw and clamping block, the operator can tighten the clamping block screw through the lock box shell A and clamping block during installation.

[0011] 3. This lock box is available in different center distance specifications and is compatible with all profiles on the market. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the anti-tension spring structure of this utility model.

[0014] In the diagram: 1. Lock box housing A; 2. Gear; 3. Lock box housing B; 4. Clamping block; 5. Positioning spring; 6. Anti-pull-off; 7. Adjustable hanger; 8. Clamping block screw; 9. Adjustable screw; 10. Adjustable transmission rod; 11. Hanger pressure block; 12. Anti-pull-off spring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1 to 2As shown, a lock box includes a lock box shell A1, a lock box shell B3 on the front of the lock box shell A1, a gear 2 movably connected inside the lock box shell A1, a positioning spring 5 movably connected inside the lock box shell A1, anti-pull deviation 6 on both sides inside the lock box shell A1, the anti-pull deviation 6 being movably connected to the lock box shell B3, anti-pull deviation springs 12 movably connected on both sides inside the lock box shell A1, and an adjustable transmission rod 10 movably connected to the surface of the lock box shell B3, the adjustable transmission rod 10 being movably connected to the lock box shell A1, the gear 2 meshing with the adjustable transmission rod 10. The lock box shell A1, gear 2, lock box shell B3, anti-pull deviation 6 and adjustable transmission rod 10 are all made of zinc alloy, and the anti-pull deviation springs 12 on both sides inside the lock box shell A1 are made of PA66 nylon.

[0017] refer to Figures 1 to 2 The adjustable transmission rod 10 has clamping block screws 8 movably connected to both sides of its bottom. The lock box housing A1 has clamping blocks 4 movably connected to both sides of its top. The top of the clamping block screws 8 extends through to the top of the lock box housing A1 and is threadedly connected to the clamping blocks 4. The clamping blocks 4 are made of stainless steel, and the clamping block screws 8 are made of 304 stainless steel.

[0018] As a technical optimization of this utility model, by setting the clamping block screw 8 and the clamping block 4, the operator can tighten the clamping block screw 8 through the lock box shell A1 and the clamping block 4 during installation.

[0019] refer to Figures 1 to 2 Adjustable hangers 7 are movably connected to both sides inside the adjustable transmission rod 10. Adjustable screws 9 are movably connected to both sides inside the adjustable transmission rod 10. The adjustable screws 9 fit into the adjustable hangers 7. The adjustable screws 9 are made of 304 stainless steel. The adjustable hangers 7 are made of zinc alloy. Hanger pressure blocks 11 are movably connected to both sides inside the adjustable transmission rod 10.

[0020] As a technical optimization of this utility model, by setting the adjustable hanger 7 and the adjustable screw 9, this device has separate hanger devices at both ends of the adjustable transmission rod 10, which solves the problem of deviation in the transmission part during installation and provides a fault tolerance function. It can be adjusted left and right by about 4mm.

[0021] The working principle and usage process of this utility model: During use, the installation steps are as follows:

[0022] Step 1: The operator passes the clamping block screw 8 through the lock box housing A1 and tightens it with the clamping block 4 to complete the first step;

[0023] Step 2: Install the anti-pull spring 12 and the positioning spring 5 in the lock box housing A1, put in the gear 2, then install the adjustable transmission rod 10, and then cover the lock box housing B3 on the lock box housing A1 with tenons and mortises to complete the second step;

[0024] Step 3: Insert the adjustable screw 9 into the adjustable transmission rod 10, install the adjustable hanger 7, and then press the hanger pressure block 11 in to complete the assembly.

[0025] After the improvement of this device, by modifying the anti-pull deviation 6, two center distances were made on the outer shell of the lock box to ensure a center distance of 43mm, and then a 20mm center distance was added. The anti-pull deviation 6 device can be extended and retracted freely. It is compatible with the baseless lock box on the market so that the lock box will not shift in the slot. When tightening the screw, the anti-pull deviation 6 extends outward with the screw in the clockwise direction and fits tightly against the profile wall thickness. When removing the handle, the anti-pull deviation 6 retracts inward with the screw in the counterclockwise direction and completely retracts into the lock box outer shell A1, so that the installation is convenient and quick.

[0026] This device features separate hanging devices at both ends of the adjustable transmission rod 10, which provides a fault tolerance function when there is a deviation in the transmission part during installation. It can be adjusted left and right by about 4mm.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lock box, comprising a lock box shell A(1), characterized in that: The front of the lock box shell A (1) is provided with a lock box shell B (3). The lock box shell A (1) is movably connected with a gear (2). The lock box shell A (1) is movably connected with a positioning spring (5). The lock box shell A (1) is provided with anti-pull deviation (6) on both sides inside. The anti-pull deviation (6) is movably connected to the lock box shell B (3). The lock box shell A (1) is movably connected with anti-pull deviation springs (12) on both sides inside. The lock box shell B (3) is movably connected with an adjustable transmission rod (10). The adjustable transmission rod (10) is movably connected to the lock box shell A (1). The gear (2) meshes with the adjustable transmission rod (10). The lock box shell A (1) is provided with anti-pull deviation springs (12) on both sides inside.

2. A lock box according to claim 1, characterized in that: The adjustable transmission rod (10) has clamping block screws (8) movably connected to both sides of its bottom. The lock box housing A (1) has clamping blocks (4) movably connected to both sides of its top. The top of the clamping block screws (8) extends through to the top of the lock box housing A (1) and is threadedly connected to the clamping blocks (4).

3. A lock box according to claim 1, characterized in that: Adjustable hangers (7) are movably connected to both sides inside the adjustable transmission rod (10). Adjustable screws (9) are movably connected to both sides inside the adjustable transmission rod (10). The adjustable screws (9) fit with the adjustable hangers (7). Hanger pressure blocks (11) are movably connected to both sides inside the adjustable transmission rod (10).