A lock body anti-lock bolt tongue limiting spring mounting structure

Abstract

The utility model discloses a lock body reverse lock bolt limit spring mounting structure, the lock body includes the lock box, and the reverse lock bolt slidingly adapts to the lock box, and the lock box still is provided with the square seat that cooperates with the reverse lock bolt, and the mounting structure includes the angle piece that sets up in the lock box, the limit piece, and the both ends of limit spring respectively abut on the angle piece, the limit piece, and limit spring constructs and abuts on the square seat. Limit spring realizes the installation in the lock box through the abutment of both ends and the angle piece, the limit piece respectively. Compared with prior art, rivet riveting is not needed in the lock box, riveting operation is reduced, and the cost of angle piece is lower than the cost of rivet, so that the material cost of lock body is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lock body manufacturing technology, and in particular, to a lock body anti-locking tongue limiting spring mounting structure. Background Technology

[0002] The deadbolt of a door lock is typically extended and retracted by a rotating square base. To maintain a stable extended position of the deadbolt, a limiting spring connected to the square base is installed inside the lock body. This limiting spring prevents the deadbolt from sliding unnecessarily. In traditional methods, the end of the limiting spring furthest from the square base needs to be riveted into the lock body, which not only requires additional riveting work but also increases material costs. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a lock body anti-locking tongue limiting spring installation structure.

[0004] The objective of this utility model is achieved through the following technical solution: A lock body deadbolt limiting spring mounting structure is disclosed. The lock body includes a lock box, the deadbolt is slidably adapted to the lock box, and a square strip seat that cooperates with the deadbolt is also provided in the lock box. The mounting structure includes a folded piece and a limiting piece disposed in the lock box. The two ends of the limiting spring abut against the folded piece and the limiting piece respectively, and the limiting spring is configured to abut against the square strip seat.

[0005] Preferably, a snap-fit ​​area is formed between the angled piece and the inner wall of the lock box, the end of the limiting spring extends into the snap-fit ​​area, and the snap-fit ​​area extends in a direction perpendicular to the sliding direction of the deadbolt.

[0006] Preferably, the lock box is provided with a guide post, the deadbolt is provided with a guide groove, and the guide post is engaged with the guide groove.

[0007] Preferably, a connecting ring is wound around the limiting spring, and the connecting ring is sleeved on the guide post.

[0008] Preferably, the corner piece is formed by stamping on the lock box.

[0009] Preferably, the limiting piece is formed by stamping on the lock box.

[0010] Preferably, the connecting ring is formed by the limiting spring being wound around the ring at least two times.

[0011] The beneficial effects of this invention are: the limiting spring is installed inside the lock box by abutting its two ends against the angle plate and the limiting plate respectively. Compared with the prior art, there is no need to rivet inside the lock box, reducing riveting work, and the cost of the angle plate is lower than that of the rivet, thus reducing the material cost of the lock body. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a schematic diagram of the limit spring.

[0013] Reference numerals in the attached diagram: 1. Lock box; 2. Square strip base; 3. Folding piece; 4. Limiting piece; 5. Snap-fit ​​area; 6. Guide post; 7. Guide groove; 8. Connecting ring; 9. Limiting spring; 10. Deadbolt. Detailed Implementation

[0014] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] like Figure 1 , Figure 2 As shown, a lock body deadbolt limiting spring mounting structure is disclosed. The lock body specifically includes a lock housing 1, and a deadbolt 10 is slidably fitted inside the lock housing 1. Similar to a conventional lock body, a guide post 6 may be provided inside the lock housing 1, and a guide groove 7 may be provided on the deadbolt 10. Through the snap-fit ​​engagement of the guide post 6 within the guide groove 7, the deadbolt 10 is provided with a sliding direction that allows it to protrude or retract from the side wall of the lock housing 1. In addition, a square strip seat 2 that cooperates with the deadbolt 10 is also provided inside the lock housing 1. The square strip seat 2 can rotate under the control of an external knob, thereby pushing the deadbolt 10 out or retracting through the flange on its side wall.

[0016] The mounting structure of the limiting spring 9 includes a bend plate 3 and a limiting plate 4 disposed within the lock housing 1. Both ends of the limiting spring 9 abut against the bend plate 3 and the limiting plate 4 respectively, enabling quick installation within the lock housing 1. In particular, the limiting spring 9 is designed to abut against the square base 2. Under the elastic force of the limiting spring 9, the square base 2 will not rotate arbitrarily, allowing the deadbolt 10 to stably remain in the extended or retracted state.

[0017] The cooperation relationship and specific movement mode between the limiting spring 9 and the square bar seat 2 are the same as those in the prior art, and will not be described in detail in this utility model.

[0018] In a preferred embodiment, both the corner piece 3 and the limiting piece 4 can be manufactured by stamping on the lock box 1. Since the lock box 1 is already formed by stamping, no additional processing steps are required for the corner piece 3 and the limiting piece 4. Furthermore, both are part of the sheet metal forming the lock box 1, thus avoiding the use of additional materials.

[0019] For example, the angled piece 3 is particularly preferably adapted to form a locking area 5 between itself and the inner wall of the lock box 1, and this locking area 5 extends in a direction perpendicular to the sliding direction of the deadbolt 10. It can be imagined that during the rotation of the square base 2, the limiting spring 9 will undergo a certain degree of yielding deformation, and its end, which is locked into the locking area 5, is less likely to dislodge from the locking area 5, making the installation of the limiting spring 9 more stable and reliable.

[0020] In some embodiments, the limiting spring 9 preferably has a connecting ring 8 formed by its own winding, and in particular, the connecting ring 8 can be formed by winding multiple turns. Figure 2 The preferred design is that the connecting ring 8 is formed by the limiting spring 9 winding around it four times. The connecting ring 8 can be fitted onto the guide post 6, making the elastic support of the limiting spring 9 on the square base 2 more stable and reliable.

[0021] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A lock body deadbolt limiting spring mounting structure, wherein the lock body includes a lock box (1), the deadbolt is slidably adapted to the lock box (1), and the lock box (1) is further provided with a square strip seat (2) that cooperates with the deadbolt, characterized in that: The mounting structure includes a folding piece (3) and a limiting piece (4) disposed in the lock box (1). The two ends of the limiting spring abut against the folding piece (3) and the limiting piece (4) respectively, and the limiting spring is configured to abut against the square strip seat (2).

2. The lock body deadbolt limiting spring mounting structure according to claim 1, characterized in that: A snap-fit ​​area (5) is formed between the angle plate (3) and the inner wall of the lock box (1). The end of the limiting spring extends into the snap-fit ​​area (5), and the snap-fit ​​area (5) extends in a direction perpendicular to the sliding direction of the anti-locking tongue.

3. The lock body deadbolt limiting spring mounting structure according to claim 1, characterized in that: The lock box (1) is provided with a guide post (6), and the deadbolt is provided with a guide groove (7). The guide post (6) is engaged with the guide groove (7).

4. The lock body deadbolt limiting spring mounting structure according to claim 3, characterized in that: A connecting ring (8) is wound around the limiting spring, and the connecting ring (8) is sleeved on the guide post (6).

5. The lock body deadbolt limiting spring mounting structure according to claim 1, characterized in that: The angled piece (3) is formed by stamping on the lock box (1).

6. The lock body deadbolt limiting spring mounting structure according to claim 1, characterized in that: The limiting piece (4) is formed by stamping on the lock box (1).

7. The lock body deadbolt limiting spring mounting structure according to claim 4, characterized in that: The connecting ring (8) is formed by the limiting spring being wound around the ring at least two times.

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