Lockset with visual stepless adjustment packing function
By adopting a lock design with stepless adjustment for visualization, the problem of lock adaptability caused by the fixed distance between the lock body and the bolt is solved, realizing flexible adjustment and locking functions of the lock, adapting to different door frame thicknesses, and simplifying the production process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-07
AI Technical Summary
The existing locks have a fixed distance between the lock body and the bolt end face, which cannot adapt to changes in door frame thickness, resulting in frequent lock replacements, affecting production efficiency and standardization.
The lock features a visually adjustable stepless design. By adjusting the nut and locking rod threads, combined with the support frame and pin limiter, the distance between the bolt and the lock body can be adjusted steplessly to adapt to changes in door frame thickness.
It enables flexible adjustment of the distance between the lock body and the bolt, adapting to different door frame thicknesses, eliminating the need for frequent lock replacements, simplifying production, improving efficiency, and providing a locking function.
Smart Images

Figure CN224093135U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a lock, and more particularly to a lock with a visually adjustable stepless tightening mechanism. Background Technology
[0002] In existing locks, the height distance H between the lock body and the bolt end face is fixed. When the thickness of the door frame increases or decreases slightly, it cannot achieve a good fit, and a lock of appropriate size needs to be selected. This is not only time-consuming and labor-intensive, but also results in too many lock body size specifications, which is not conducive to industrial production. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a lock with a visually adjustable, stepless tightening mechanism.
[0004] To achieve the purpose of this invention, the following technical solution is adopted:
[0005] This utility model discloses a lock with a visually adjustable stepless tightening mechanism, comprising: a lock body, a lock rod, and a lock tongue. The lock body is mounted on one end of the lock rod, and the lock tongue is fixed to the other end of the lock rod. It further includes: a support frame, an adjusting nut, and a pin. The other end of the lock rod is a circular screw with at least one cut surface. The end face of the circular screw is composed of straight lines and arcs. The support frame is a U-shaped groove with a first corner hole at its center that mates with the end face of the screw at the other end of the lock rod. One end of the lock tongue has a hole that mates with the lock... The second corner hole at the other end of the rod mates with the screw end face. The center of the adjusting nut has a circular thread hole that mates with the thread of the circular screw at the other end of the locking rod. The adjusting nut and the locking tongue are installed in the U-shaped groove of the support frame. The first corner hole, the second corner hole, the circular thread hole and the first corner hole pass through the circular screw at the other end of the locking rod in sequence. The support frame and the locking tongue slide on the circular screw. The adjusting nut engages with the thread of the circular screw and rotates along the circular screw. The pin is inserted into the end of the locking rod on the outside of the support frame.
[0006] The present invention relates to a lock with a visually adjustable stepless tightening mechanism, wherein: the other end of the lock rod is a circular screw with four cutting planes, the four cutting planes being evenly distributed along the circumference of the circular screw.
[0007] The present invention relates to a lock with a visually adjustable stepless tightening mechanism, wherein: there are at least three grooves on the end face of the adjusting nut, and a protrusion on the U-shaped groove that mates with the end face; when the adjusting nut rotates along the lock rod, the protrusion lies into the groove.
[0008] The present invention relates to a lock with a visually adjustable stepless tightening mechanism, wherein: there are 6-8 grooves, which are evenly distributed along the circumference of the end face of the adjusting nut.
[0009] The present invention relates to a lock with a visible stepless adjustable clamping mechanism, wherein the outer circumference of the adjusting nut is covered with friction textures.
[0010] The present invention relates to a lock with a visually adjustable stepless tightening mechanism, wherein the lock body is a lock body of a rotary lock with a screw, a lock body of a rotary lock, a lock body of a tension lock, a lock body of a tightening lock, or a lock body of a handle lock.
[0011] Compared with existing technologies, the lock with visual stepless adjustable clamping mechanism of this invention has the following advantages:
[0012] In the lock with visual stepless adjustable tightening of this utility model, the height distance between the lock body and the end face of the bolt can be infinitely adjusted. When the thickness of the door frame increases or decreases slightly, it can still achieve a good fit without the need to select a lock of a suitable size. This not only saves time and effort, but also simplifies the size specifications of the lock body, which is conducive to industrial production. In addition, the lock also has a built-in locking function. Once the bolt is adjusted to the correct position, the bolt is fixed on the lock rod and cannot be moved. Attached Figure Description
[0013] Figure 1 This is a frontal three-dimensional schematic diagram of the lock with visual stepless adjustable clamping mechanism of this utility model;
[0014] Figure 2 This is a side perspective three-dimensional schematic diagram of the lock with visual stepless adjustable clamping mechanism of this utility model;
[0015] Figure 3 This is an enlarged schematic diagram of the end face of the locking bar;
[0016] Figure 4 This is an exploded three-dimensional schematic diagram of the lock with visualized stepless adjustable clamping according to the present invention. In the diagram, the pin, latch, support frame and adjusting nut are removed from the lock rod.
[0017] Figure 5 This is a three-dimensional schematic diagram of the support frame;
[0018] Figure 6 This is a three-dimensional schematic diagram of the latch;
[0019] Figure 7 This is a three-dimensional schematic diagram of the adjusting nut.
[0020] exist Figures 1 to 7 In the diagram, number 1 represents the lock body; number 2 represents the lock rod; number 3 represents the lock tongue; number 4 represents the support frame; number 5 represents the adjusting nut; number 6 represents the pin; number 7 represents the first corner hole; number 8 represents the protrusion; number 9 represents the round threaded hole; number 10 represents the friction pattern; number 11 represents the second corner hole; number 12 represents the cutting surface; and number 13 represents the groove. Detailed Implementation
[0021] like Figures 1 to 7 As shown, the lock with visually adjustable stepless tightening according to this utility model includes: a lock body 1, a lock rod 2, a lock tongue 3, a support frame 4, an adjusting nut 5, and a pin 6. The lock body 1 is mounted on one end of the lock rod 2, and the lock tongue 3 is fixed to the other end of the lock rod 2. Figure 3 As shown, at the other end of the locking rod 2 is a circular screw with four cutting surfaces 12. The four cutting surfaces 12 are evenly distributed along the circumference of the circular screw. The end face of the circular screw is composed of sequentially connected straight lines and arcs. The support frame 4 is a U-shaped groove with a first corner hole 7 at its center that mates with the end face of the screw at the other end of the locking rod 2. One end of the locking tongue 3 has a second corner hole 11 that mates with the end face of the screw at the other end of the locking rod 2. The center of the adjusting nut 5 has a circular threaded hole 9 that mates with the thread of the circular screw at the other end of the locking rod 2. The adjusting nut 5 and the locking tongue 3 are installed in the U-shaped groove of the support frame 4. The first corner hole 7, the second corner hole 11, the circular threaded hole 9, and the first corner hole 7 pass through the circular screw at the other end of the locking rod 2 in sequence. The support frame 4 and the locking tongue 3 slide on the circular screw. The adjusting nut 5 engages with the thread of the circular screw and rotates along the circular screw. The pin 6 is inserted into the end of the locking rod 2 on the outside of the support frame 4.
[0022] like Figure 5 As shown, there are six grooves 13 on the end face of the adjusting nut 5, which are evenly distributed along its circumference. There is a protrusion 8 on the U-shaped groove that mates with the end face. When the adjusting nut 5 rotates along the locking rod 2, the protrusion 8 lies in the groove 13. The fit between the protrusion 8 and the groove 13 prevents the adjusting nut 5 from rotating easily. The operator can estimate the height distance between the locking tongue 3 and the locking body 1 based on the rotation angle of the adjusting nut 5. Friction textures 10 are distributed on the outer circumference of the adjusting nut 5 to facilitate the operator's operation.
[0023] The lock body 1 of this utility model is a lock body of a rotary lock with a screw, a lock body of a rotary lock, a lock body of a tension lock, a lock body of a clamping lock, or a lock body of a handle lock.
[0024] When installing the lock with visual stepless adjustable clamping mechanism of this invention, select a lock of appropriate size according to the thickness of the door frame, such as... Figure 1 As shown, when the thickness of the door frame is greater than or less than the height distance H between the latch 3 and the end face of the lock body 1, the latch 3 can be moved along the lock rod 2 by adjusting the adjusting nut 4. When it is moved into place, the protrusion 8 on the U-shaped groove lies in the groove 13 of the adjusting nut 5, which plays a role in limiting and fixing, preventing the latch 3 from continuing to slide along the lock rod 2.
[0025] The technical content of this utility model has been described above, but the protection scope of this utility model is not limited to the described content. Within the scope of knowledge possessed by those skilled in the art, various changes can be made to the technical content of this utility model without departing from the spirit of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A lock with visually adjustable stepless tightening, comprising: The lock comprises a lock body (1), a lock rod (2), and a lock tongue (3). The lock body (1) is mounted on one end of the lock rod (2), and the lock tongue (3) is fixed on the other end of the lock rod (2). The lock body (1) is mounted on one end of the lock rod (2), and the lock tongue (3) is fixed on the other end of the lock rod (2). The lock body (1) is characterized by further comprising a support frame (4), an adjusting nut (5), and a pin (6). The other end of the lock rod (2) is a circular screw with at least one cutting plane (12). The end face of the circular screw is composed of straight lines and arcs. The support frame (4) is a U-shaped groove with a first corner hole (7) at its center that mates with the end face of the screw at the other end of the lock rod (2). One end of the lock tongue (3) has a hole that mates with the end face of the screw at the other end of the lock rod (2). The second corner hole (11) and the center of the adjusting nut (5) have a circular thread hole (9) that matches the thread of the circular screw at the other end of the locking rod (2). The adjusting nut (5) and the locking tongue (3) are installed in the U-shaped groove of the support frame (4). The first corner hole (7), the second corner hole (11), the circular thread hole (9) and the first corner hole (7) pass through the circular screw at the other end of the locking rod (2) in sequence. The support frame (4) and the locking tongue (3) slide on the circular screw. The adjusting nut (5) engages with the thread of the circular screw and rotates along the circular screw. The pin (6) is inserted into the end of the locking rod (2) on the outside of the support frame (4).
2. The lock with visually adjustable stepless tightening as described in claim 1, characterized in that: The other end of the locking rod (2) is a circular screw with four cutting planes (12), which are evenly distributed along the circumference of the circular screw.
3. The lock with visually adjustable stepless tightening as described in claim 2, characterized in that: There are at least three grooves (13) on the end face of the adjusting nut (5), and a protrusion (8) on the U-shaped groove that mates with the end face. When the adjusting nut (5) rotates along the locking rod (2), the protrusion (8) lies in the groove (13).
4. The lock with visually adjustable stepless tightening as described in claim 3, characterized in that: There are 6-8 grooves (13), which are evenly distributed along the circumference of the end face of the adjusting nut (5).
5. The lock with visually adjustable stepless tightening as described in claim 4, characterized in that: The outer circumference of the adjusting nut (5) is covered with friction marks (10).
6. The lock with visually adjustable stepless tightening as described in claim 5, characterized in that: The lock body (1) is a lock body of a rotary lock with a screw, a lock body of a rotary lock, a lock body of a tension lock, a lock body of a clamping lock, or a lock body of a handle lock.