Lock body
By designing the latch assembly and buckle assembly, the problem of excessive load on the latch spring in the lock body was solved, extending the service life of the lock body and improving the door closing effect.
Patent Information
- Application Number
- CN202520075379.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-13
AI Technical Summary
The spring load on the latch in the existing lock body is too high, causing the latch to fail to pop out properly and affecting the door's closing effect.
A lock body structure was designed, including a latch assembly and a snap-fit assembly. By cooperating with a rotating plate and a spring, the load on the spring is reduced, and the snap-fit assembly is used to prevent the latch from retracting when locking the door, thereby reducing the number of times the spring and elastic metal plate are used.
It improves the lifespan of the spring, reduces the load on the latch, extends the overall lifespan of the lock body, and enhances the door's closing effect.
Smart Images
Figure CN223893960U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock body technology, specifically a lock body. Background Technology
[0002] Existing door locks typically consist of a lock body, lock cylinder, and bolt. When in use, the key is inserted into the keyhole to overcome the spring force of the spring-loaded pin, so that the pin is in the correct position. Then, turning the key activates the lock cylinder to achieve the purpose of unlocking and locking.
[0003] In normal use, a lock body is connected to the door via a latch and then opened by a handle. Over time, the repeated sliding of the latch can cause the spring load on the latch to become too high, resulting in the latch not being able to pop out properly and the door not being able to close properly.
[0004] Based on this, a lock body is now provided that can eliminate the drawbacks of existing devices. Utility Model Content
[0005] The purpose of this invention is to provide a lock body to solve the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A lock body includes a lock body shell, a lock cylinder assembly is provided at the upper end of the lock body shell, and a lock tongue assembly is provided at the lower end of the lock body shell;
[0008] The latch assembly includes a sliding plate, on one side of which a spring is fixedly connected by bolts. The spring is slidably connected to one side of the lock body shell. A groove is provided in the middle of the sliding plate, and a limit post is provided on one side of the groove. The limit post is fixedly connected to one side of the lock body shell. A rotating plate is provided on one side of the sliding plate. The rotating plate is rotatably disposed inside one side of the lock body shell. A spring is fixedly connected to one end of the rotating plate, and a buckle assembly is provided at the upper end of the rotating plate.
[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:
[0010] In one alternative: a handle mounting groove is provided at one end of the rotating plate, and an elastic iron sheet is provided at the other end of the rotating plate.
[0011] In one alternative embodiment: the buckle assembly includes a limiting plate, one end of which is disposed at one end of the spring tongue, and the other end of which is provided with a limiting plate. A buckle is provided on one side of the limiting plate, and a limiting groove is provided on one side of the limiting plate and is slidably connected to the upper end of the buckle.
[0012] In one alternative embodiment: the lock cylinder assembly includes a lock cylinder groove, which is formed at one end of the lock body shell. A lock box is provided on one side of the lock cylinder groove, and the lock cylinder groove is formed through one side of the lock box. An annular slide groove is provided on one side of the lock cylinder groove, and a slider is slidably arranged on one side of the annular slide groove. One end of the slider is fixedly connected to the annular slide groove, and one end of the annular slide groove is slidably connected to one side of the lock box.
[0013] In one alternative embodiment, a plurality of mounting threaded grooves are provided on one side of the lock box.
[0014] In one alternative embodiment, a latch mounting groove is fixedly connected to one side of the lock body housing.
[0015] In one alternative embodiment, a plurality of mounting components are provided on one side of the lock body housing.
[0016] In one alternative embodiment: a plurality of fixing posts are provided on one side of the lock body housing, and some of the fixing posts are fixedly connected to the mounting threaded groove by bolts.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] This utility model, through the design of a locking tongue and a latch assembly, facilitates the use of elastic plates and springs, reducing the burden on the springs and thus increasing their service life. This, in turn, reduces the load on the latch, extending the overall service life. Furthermore, the latch assembly allows the latch end to slide downwards during reverse locking, preventing the latch from retracting as one end is blocked by the lower end of the limiting plate. This also prevents the handle from turning, reducing the number of times the spring and elastic plate are used, further improving the overall service life. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0020] Figure 2 This is a side view of the overall structure of this utility model.
[0021] Figure 3 This is a side view of the overall structure of this utility model.
[0022] Figure 4 This is a schematic diagram of the structural lock core assembly of this utility model.
[0023] Figure label annotations: 1. Lock body shell; 2. Fixing post; 3. Rotating plate; 4. Handle mounting slot; 5. Spring; 6. Limiting plate; 7. Spring tongue; 8. Slide plate; 9. Slide groove; 10. Limiting post; 11. Snap-lock mounting slot; 12. Limiting plate; 13. Snap-lock; 14. Lock cylinder groove; 15. Mounting component; 16. Lock box; 17. Snap-lock post; 18. Slider; 19. Annular slide groove; 20. Mounting thread groove. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0025] In one embodiment, such as Figures 1-4 As shown, a lock body includes a lock body shell 1, a lock cylinder assembly is provided at the upper end of the lock body shell 1, and a lock tongue assembly is provided at the lower end of the lock body shell 1.
[0026] The locking tongue assembly includes a sliding plate 8. A spring 7 is fixedly connected to one side of the sliding plate 8 by bolts. The spring 7 is slidably connected to one side of the lock body shell 1. A sliding groove 9 is provided in the middle of the sliding plate 8. A limiting post 10 is provided on one side of the sliding groove 9. The limiting post 10 is fixedly connected to one side of the lock body shell 1. A rotating plate 3 is provided on one side of the sliding plate 8. The rotating plate 3 is rotatably disposed inside one side of the lock body shell 1. A spring 5 is fixedly connected to one end of the rotating plate 3. A buckle assembly is provided on the upper end of the rotating plate 3.
[0027] In this embodiment, when in use, one end of the handle is inserted into the handle mounting slot 4, and then the handle is rotated to drive the rotating plate 3 to rotate together, thereby moving the slide plate 8 and retracting the latch 7 into the lock body shell 1 to complete the unlocking. After releasing the handle, the elastic iron plate on one side and the spring 5 will squeeze and send the lower end of the rotating plate 3 back to the designated position, which will pop out the latch 7.
[0028] In one embodiment, such as Figure 2 As shown, one end of the rotating plate 3 is provided with a handle mounting groove 4, and the other end of the rotating plate 3 is provided with an elastic iron sheet.
[0029] In one embodiment, such as Figure 3As shown, the latch assembly includes a limiting plate 6, one end of which is disposed at one end of the spring tongue 7, and the other end of which is disposed at a limiting plate 12. A latch 13 is disposed on one side of the limiting plate 12, and a limiting groove is disposed on one side of the limiting plate 12 and is slidably connected to the upper end of the latch 13. When locking the door, the latch end of the latch 13 can be slid downward, at which point the latch end of the latch 13 abuts against the upper end of the limiting plate 6, and the limiting plate 6 cannot be rotated. When the handle is rotated again, one end of the spring tongue 7 is abutted against the lower end of the limiting plate 6 and cannot be retracted, so the handle cannot be rotated, thus reducing the number of times the spring and elastic iron plate are used.
[0030] In one embodiment, such as Figure 4 As shown, the lock cylinder assembly includes a lock cylinder groove 14, which is located at one end of the lock body shell 1. A lock box 16 is provided on one side of the lock cylinder groove 14, and the lock cylinder groove 14 is provided through one side of the lock box 16. An annular slide groove 19 is provided on one side of the lock cylinder groove 14, and a slider 18 is slidably provided on one side of the annular slide groove 19. One end of the slider 18 is fixedly connected to the annular slide groove 19, and one end of the annular slide groove 19 is slidably connected to one side of the lock box 16. After the lock cylinder is installed, through the cooperation of the lock cylinder and the slider 18, when the key is turned, the slider 18 slides along the annular slide groove 19 to slide out the lock post 17, thus locking the door.
[0031] In one embodiment, such as Figure 4 As shown, a plurality of mounting threaded grooves 20 are provided on one side of the lock box 16.
[0032] In one embodiment, such as Figure 3 As shown, a latch mounting groove 11 is fixedly connected to one side of the inner side of the lock body shell 1.
[0033] In one embodiment, such as Figure 3 As shown, a plurality of mounting parts 15 are provided on one side of the inner shell 1 of the lock body.
[0034] In one embodiment, such as Figure 1 As shown, a number of fixing posts 2 are provided on one side of the lock body shell 1, and some of the fixing posts 2 are fixedly connected to the mounting threaded groove 20 by bolts.
[0035] The above embodiment discloses a lock body in which, during use, one end of the handle is inserted into the handle mounting groove 4, and then the handle is rotated to drive the rotating plate 3 to rotate together, thereby moving the slide plate 8 and retracting the latch 7 into the lock body shell 1 to complete the unlocking. After releasing the handle, the elastic iron plate and spring 5 on one side will squeeze and send the lower end of the rotating plate 3 back to the designated position, thus popping out the latch 7. When locking the door, the latch end of the buckle 13 can be slid downward. At this time, the latch end of the buckle 13 abuts against the upper end of the limiting plate 6, and the limiting plate 6 cannot rotate. When the handle is rotated again, one end of the latch 7 is abutted by the lower end of the limiting plate 6 and cannot be retracted, so the handle cannot be rotated, reducing the number of times the spring and elastic iron plate are used. After the lock cylinder is installed, through the cooperation of the lock cylinder and the slider 18, when the key is turned, the slider 18 slides along the annular groove 19 to slide out the lock pin 17, thus completing the locking.
[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A lock body, comprising a lock body shell (1), wherein a lock cylinder assembly is provided at the upper end of the lock body shell (1), and a lock tongue assembly is provided at the lower end of the lock body shell (1); Its features are, The locking tongue assembly includes a sliding plate (8), on one side of which a spring tongue (7) is fixedly connected by bolts. The spring tongue (7) is slidably connected to one side of the lock body shell (1). A sliding groove (9) is provided in the middle of the sliding plate (8). A limiting post (10) is provided on one side of the sliding groove (9). The limiting post (10) is fixedly connected to one side of the lock body shell (1). A rotating plate (3) is provided on one side of the sliding plate (8). The rotating plate (3) is rotatably disposed inside one side of the lock body shell (1). A spring (5) is fixedly connected to one end of the rotating plate (3). A buckle assembly is provided on the upper end of the rotating plate (3).
2. A lock body according to claim 1, characterized in that, One end of the rotating plate (3) is provided with a handle mounting groove (4), and the other end of the rotating plate (3) is provided with an elastic iron sheet.
3. A lock body according to claim 1, characterized in that, The buckle assembly includes a limiting plate (6), one end of which is disposed at one end of the spring tongue (7), and the other end of which is provided with a limiting plate (12). A buckle (13) is provided on one side of the limiting plate (12), and a limiting groove is provided on one side of the limiting plate (12) and is slidably connected to the upper end of the buckle (13).
4. A lock body according to claim 1, characterized in that, The lock cylinder assembly includes a lock cylinder groove (14), which is opened at one end of the lock body shell (1). A lock box (16) is provided on one side of the lock cylinder groove (14). The lock cylinder groove (14) is opened through one side of the lock box (16). An annular slide groove (19) is provided on one side of the lock cylinder groove (14). A slider (18) is slidably provided on one side of the annular slide groove (19). One end of the slider (18) is fixedly connected to the annular slide groove (19). One end of the annular slide groove (19) is slidably connected to one side of the lock box (16).
5. A lock body according to claim 4, characterized in that, The lock box (16) has several mounting threaded grooves (20) on one side.
6. A lock body according to claim 1, characterized in that, A latch mounting groove (11) is fixedly connected to one side of the lock body shell (1).
7. A lock body according to claim 1, characterized in that, Several mounting parts (15) are provided on one side of the inner shell (1) of the lock body.
8. A lock body according to claim 1, characterized in that, The lock body shell (1) has several fixing posts (2) on one side, and some of the fixing posts (2) are fixedly connected to the mounting threaded groove (20) by bolts.