Lock body square tongue
By designing a hollow square tongue block and combining it with a raised folded edge and connecting cavity, the problem of high manufacturing cost of the square tongue of the lock body was solved, achieving the effects of material saving and structural stability.
Patent Information
- Application Number
- CN202520385081.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-06
AI Technical Summary
The manufacturing cost of existing lock body square tongues is high, mainly because the square tongue block is a solid structure, resulting in excessive material usage.
A lock body with a square tongue is designed, which adopts a hollow square tongue block, and a raised folded edge and a connecting cavity are set at the connection part between the square tongue plate and the square tongue block to achieve a stable connection between the two.
This reduced material costs while improving the product's structural stability and load-bearing strength.
Smart Images

Figure CN223824771U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of locks, specifically to a lock body square tongue. Background Technology
[0002] The latch of the lock body is a key component in the lock used to connect the door and the door frame and to provide a sealing function. The existing latch block is a solid structure, and the bottom of the latch plate is connected to the top surface of the latch block by welding. Because the existing latch block is a solid structure, a large amount of material is required to manufacture the latch block, resulting in high manufacturing costs. Utility Model Content
[0003] This invention solves the problem of high manufacturing cost of existing lock body square tongues.
[0004] To achieve the above objectives, this utility model provides a lock body latch, including a latch plate and a hollow latch block. One end of the latch plate is provided with a latch positioning groove and the other end is provided with a latch block connecting part. The latch block connecting part has a pair of protruding folded edges. A latch positioning hole and a latch sliding groove are provided between the latch positioning groove and the latch connecting part. The latch block is provided with a connecting cavity. The latch connecting part at one end of the latch plate is inserted into the connecting cavity of the latch block for connection.
[0005] Furthermore, the folded edge of the connecting part of the square tongue block abuts against the inner wall of the connecting cavity.
[0006] The technical effects and advantages of this utility model are as follows: by inserting one end of the square tongue plate into the square tongue block, the detached edge of the connecting part of the square tongue block abuts against the inner wall of the connecting cavity, making the structure between the square tongue plate and the square tongue block more solid and increasing the strength of the load-bearing capacity, making the product structure more stable. Moreover, the square tongue block is set as a hollow structure, which saves more material costs than the existing solid structure square tongue block. Attached Figure Description
[0007] Figure 1 This is a schematic diagram of the square tongue plate structure of this utility model;
[0008] Figure 2 A schematic diagram showing a pair of folded edge structures provided for the connecting part of the square tongue block of this utility model;
[0009] Figure 3 This is a cross-sectional view of the connection between the square tongue plate and the square tongue block of this utility model.
[0010] Reference numerals: square tongue plate 10; square tongue block 20; square tongue positioning groove 11; square tongue block connecting part 12; square tongue positioning hole 13; square tongue sliding groove 14; connecting cavity 21; folded edge 15; 16 reinforcing rib 16. Detailed Implementation
[0011] like Figures 1 to 3 The lock body includes a square tongue plate 10 and a hollow square tongue block 20. One end of the square tongue plate 10 is provided with a square tongue positioning groove 11 and the other end is provided with a square tongue block connecting part 12. The square tongue block connecting part has a pair of protruding folded edges 15. A square tongue positioning hole 13 and a square tongue sliding groove 14 are provided between the square tongue positioning groove 11 and the square tongue connecting part 12. The square tongue block 20 is provided with a connecting cavity 21. The square tongue connecting part 12 at one end of the square tongue plate 10 is inserted into the connecting cavity 21 of the square tongue block 20.
[0012] In practical implementation, the square tongue connecting part 12 at one end of the square tongue plate 10 is inserted into the connecting cavity 21 of the square tongue block 20. The folded edge 15 of the square tongue connecting part 12 abuts against the inner wall of the connecting cavity 21, making the structure between the square tongue plate 10 and the square tongue block 20 more solid and increasing the stress strength, making the product structure more stable. The square tongue block 20 is set as a hollow structure, which saves more material costs than the existing solid structure square tongue block.
[0013] The lock body's square tongue has a reinforcing rib 16 at the bottom of the square tongue sliding groove 14, and the lock body's square tongue also has reinforcing ribs 16 on both sides.
[0014] In summary, the square tongue of this utility model is inserted into the square tongue block 20 by one end of the square tongue plate 10, and the square tongue connecting part 12 is welded to the square tongue block 20, so that the connection between the square tongue block 20 and the square tongue plate 10 is stable and the hollow structure of the square tongue block reduces the material cost of product manufacturing.
Claims
1. A lock body latch, characterized in that: The device includes a square tongue plate (10) and a hollow square tongue block (20). One end of the square tongue plate (10) is provided with a square tongue positioning groove (11) and the other end is provided with a square tongue block connecting part (12). The square tongue block connecting part (12) has a pair of protruding folded edges (15). A square tongue positioning hole (13) and a square tongue sliding groove (14) are provided between the square tongue positioning groove (11) and the square tongue connecting part (12). The square tongue block (20) is provided with a connecting cavity (21). The square tongue connecting part (12) at one end of the square tongue plate (10) is inserted into the connecting cavity (21) of the square tongue block (20) for connection.
2. The lock body latch according to claim 1, characterized in that: The folded edge (15) of the square tongue block connecting part (12) abuts against the inner wall of the connecting cavity (21).
3. The lock body latch according to claim 2, characterized in that: The bottom of the square tongue sliding groove (14) is provided with reinforcing ribs (16).
4. The lock body latch according to claim 3, characterized in that: The lock tongue is also provided with reinforcing ribs (16) on both sides.