Quick installation lock catch
By designing a quick-installation latch and utilizing a spring and guide post structure, the problem of traditional latches requiring tools for installation is solved, achieving a convenient latch installation method.
Patent Information
- Application Number
- CN202520731889.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-17
AI Technical Summary
Traditional latch installation requires tools such as electric drills, making it difficult for ordinary users to install quickly.
A quick-installation latch was designed, which uses a spring and guide post structure, along with a locking screw and locking element, to achieve simple tool-free installation.
This design enables convenient installation of the latch, simplifies user operation, and improves installation efficiency.
Smart Images

Figure CN223839510U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of locking technology, and in particular to quick-installation locking mechanisms. Background Technology
[0002] A latch is a device that achieves closure through locking or mechanical structure. It is mainly used to fix, connect or restrict the movement of objects, and its core functions are to provide safety protection, convenient fixation or decoration.
[0003] Traditional latches require tools such as electric drills, screwdrivers, and chisels for installation, which ordinary users may lack or be unable to use. This makes it inconvenient for users to quickly install the latches, thus creating a need for an easy-to-install latch. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quick-installation lock.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] The quick-installation latch includes a base, on the top of which a fixed seat is fixedly installed. Inside the fixed seat, a movable sleeve is vertically movably installed, and the fixed seat and the movable sleeve are connected by a spring. A locking component is installed above the movable sleeve, and a locking screw is rotatably installed above the locking component. The locking screw passes through the locking component, the movable sleeve, and the fixed seat in sequence and is engaged in a screw hole in the base.
[0007] Furthermore, in a preferred configuration, the top of the fixed base has a downward-facing movable cavity, and the movable sleeve is adapted to move within the movable cavity.
[0008] Furthermore, in a preferred configuration, the fixing base and the locking member are respectively provided with a lower through hole and an upper through hole corresponding to the locking screw, and both the lower through hole and the upper through hole are aligned with the screw hole.
[0009] In addition, a preferred structure is that guide posts are fixedly provided on both sides of the movable sleeve, guide cavities are adapted to be opened on both sides of the movable cavity corresponding to the guide posts, and positioning cavities are adapted to be opened on the locking member corresponding to the guide posts.
[0010] In addition, a preferred structure is that a limiting ring is fixedly provided inside the movable sleeve, and multiple elastic pressure members are provided on the inner wall of the limiting ring.
[0011] Furthermore, in a preferred configuration, one end of the spring is connected to the limiting ring, and the other end of the spring is connected to the bottom of the movable cavity.
[0012] The beneficial effects of this utility model are as follows: by rotating the locking screw, the bolt head can be pressed onto one side of the locking component, and the compressed spring can press onto the other side of the locking component. Furthermore, the locking component is prevented from rotating by the matching engagement between the guide post and the positioning cavity. In this way, the locking component can be moved towards the base for locking. Thus, the device can be fixedly installed on the external connector by locking the base and the locking component. This installation method is simple and convenient, and easy for users to use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the quick-installation latch proposed in this utility model;
[0014] Figure 2 for Figure 1 A schematic diagram of the exploded structure;
[0015] Figure 3 This is a schematic diagram of the base of the quick-installation lock proposed in this utility model;
[0016] Figure 4 This is a schematic diagram of the structure of the fixing base for the quick-installation lock proposed in this utility model;
[0017] Figure 5 This is a schematic diagram of the movable sleeve of the quick-installation lock proposed in this utility model;
[0018] Figure 6 for Figure 5 A schematic diagram of the movable sleeve from below;
[0019] Figure 7 This is a schematic diagram of the locking component of the quick-installation latch proposed in this utility model.
[0020] In the diagram: 1 base, 11 screw hole, 2 fixed seat, 21 movable cavity, 22 guide cavity, 23 lower through hole, 3 spring, 4 movable sleeve, 41 limit ring, 411 elastic pressure piece, 42 guide post, 5 locking piece, 51 upper through hole, 52 positioning cavity, 6 locking screw. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-7The quick-installation latch includes a base 1, a fixed seat 2 fixedly mounted on the top of the base 1, a movable sleeve 4 vertically movably mounted inside the fixed seat 2, and a spring 3 connecting the fixed seat 2 and the movable sleeve 4. A locking element 5 is mounted on the top of the movable sleeve 4, and a locking screw 6 is rotatably mounted on the top of the locking element 5. The locking screw 6 passes through the locking element 5, the movable sleeve 4, and the fixed seat 2 in sequence and is engaged in the screw hole 11 inside the base 1.
[0023] The fixed base 2 has a downward-facing movable cavity 21 at its top, and the movable sleeve 4 is adapted to move within the movable cavity 21.
[0024] The fixing base 2 and the locking component 5 are respectively provided with a lower through hole 23 and an upper through hole 51 corresponding to the locking screw 6, and both the lower through hole 23 and the upper through hole 51 are aligned with the screw hole 11. The size of the upper through hole 51 is the same as the diameter of the locking screw 6 without threads, and the size of the lower through hole 23 is the same as the diameter of the locking screw 6 with threads.
[0025] The movable sleeve 4 has guide posts 42 fixedly installed on both sides, and guide cavities 22 are adapted to be formed on both sides of the movable cavity 21 corresponding to the guide posts 42. Furthermore, positioning cavities 52 are adapted to be formed on the locking member 5 corresponding to the guide posts 42. Through the adaptation between the guide posts 42 and the guide cavities 22, the movable sleeve 4 can be moved within the movable cavity 21. Through the adaptation between the guide posts 42 and the positioning cavities 52, the locking member 5 can be stably positioned above the movable sleeve 4.
[0026] The movable sleeve 4 has a fixed limiting ring 41 inside, and the inner wall of the limiting ring 41 is provided with multiple elastic pressure members 411. The diameter of the limiting ring 41 is the same as the diameter of the locking screw 6 without threads. The elastic pressure members 411 on the limiting ring 41 can prevent the locking screw 6 from falling off the limiting ring 41 when it is not locked.
[0027] One end of the spring 3 is connected to the limiting ring 41, and the other end of the spring 3 is connected to the bottom of the movable cavity 21.
[0028] In this embodiment, the base 1 is inserted into the through hole of the connector, and then the base 1 is rotated so that it is locked inside the through hole of the connector. Next, by rotating the locking screw 6, the position of the locking member 5 can be adjusted, thereby locking the locking member 5 to the outside of the through hole of the connector. Thus, the device is fixedly installed on the connector by the locking between the locking member 5 and the base 1. It is worth noting that the specific structures of the connector and the through hole are existing technologies, and are not related to the technical problem of quick installation of the locking member 5 that needs to be solved in this technical solution; therefore, they will not be described in detail.
[0029] Furthermore, the locking screw 6 passes through the upper through hole 51, the movable sleeve 4 and the lower through hole 23 in sequence. When the user needs to install and lock the locking part 5, he only needs to rotate the locking screw 6, so that the locking screw 6 can be rotated and locked into the screw hole 11 on the base 1.
[0030] As the locking screw 6 rotates toward the base 1, it presses down on the locking member 5, allowing it to move synchronously toward the base 1. This movement of the locking member 5 pushes the movable sleeve 4 into the movable cavity 21, thus pressing down on the spring 3. It is important to note that the locking member 5 and the nut of the locking screw 6 are not fixedly connected; therefore, the locking member 5 will not rotate during movement.
[0031] When the locking screw 6 rotates to the deepest point of the screw hole 11, the spring 3 is compressed to its limit. At this time, the elastic force of the spring 3 can push the movable sleeve 4 outward, thereby pressing one side of the locking member 5 through the movable sleeve 4, and pressing the other side of the locking member 5 through the bolt head on the locking screw 6, thus achieving the fixed installation of the locking member 5. Furthermore, the adapter engagement between the guide post 42 and the positioning cavity 52 can prevent the locking member 5 from rotating.
[0032] Furthermore, the base 1 is provided with anti-slip grooves so that the base 1 can be stably locked inside the through hole of the connector.
[0033] In this invention, by rotating the locking screw 6, the bolt head can be pressed against one side of the locking member 5, and the compressed spring 3 can press against the other side of the locking member 5. The locking member 5 is prevented from rotating by the adapter between the guide post 42 and the positioning cavity 52. Thus, the locking member 5 can be moved towards the base 1 and locked. The device can be fixedly installed on the external connector by locking the base 1 and the locking member 5. This installation method is simple and convenient and easy for users to use.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A quick-installation latch, including a base (1), characterized in that, The base (1) is fixedly provided with a fixed seat (2) on the top, and a movable sleeve (4) is vertically movably provided inside the fixed seat (2), and the fixed seat (2) and the movable sleeve (4) are connected by a spring (3). A locking component (5) is mounted on the upper part of the movable sleeve (4), and a locking screw (6) is rotatably mounted on the upper part of the locking component (5). The locking screw (6) passes through the locking component (5), the movable sleeve (4) and the fixed seat (2) in sequence and is locked in the screw hole (11) in the base (1).
2. The quick-installation latch according to claim 1, characterized in that, The top of the fixed base (2) is provided with a movable cavity (21) facing downwards, and the movable sleeve (4) is adapted to move within the movable cavity (21).
3. The quick-installation latch according to claim 2, characterized in that, The fixing base (2) and the locking member (5) are respectively provided with a lower through hole (23) and an upper through hole (51) adapted to the locking screw (6), and the lower through hole (23) and the upper through hole (51) are both adapted to and aligned with the screw hole (11).
4. The quick-installation latch according to claim 2, characterized in that, Guide posts (42) are fixedly provided on both sides of the movable sleeve (4), and guide cavities (22) are adapted to be opened on both sides of the movable cavity (21) corresponding to the guide posts (42), and positioning cavities (52) are adapted to be opened on the locking member (5) corresponding to the guide posts (42).
5. The quick-installation latch according to claim 2, characterized in that, The movable sleeve (4) is fixedly provided with a limiting ring (41) inside, and a plurality of elastic pressure members (411) are provided on the inner wall of the limiting ring (41).
6. The quick-installation latch according to claim 5, characterized in that, One end of the spring (3) is connected to the limiting ring (41), and the other end of the spring (3) is connected to the bottom of the movable cavity (21).