Bearing fixing structure of metal plate door lock

Abstract

The utility model provides a bearing fixing structure of a metal plate door lock, which relates to the technical field of door locks and is characterized by comprising a lock shell, a groove is arranged on the rear side of the lock shell, a bearing groove is arranged in the middle of the lock shell, a bearing shell is fixedly arranged on one side of the bearing groove, which is positioned on the groove, and the bearing shell is fixedly arranged on the lock shell. A bearing is arranged at the position, corresponding to the bearing groove, in the bearing shell, and bent feet are evenly arranged on the lock shell and located on the outer side of the bearing groove. The bearing is stably fixed, the phenomenon that the bearing is stuck is avoided, the operation process is greatly simplified, the requirement for the machining precision of a lock shell is lowered, and therefore the production efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, in particular to a bearing fixing structure of a sheet metal door lock. Background Art

[0002] In the manufacturing process of sheet metal door locks, bearings are key components, and their fixing method is directly related to the overall performance and durability of the door lock. Currently, the most common sheet metal door lock bearing fixing method on the market mainly relies on axial interference extrusion technology. This technology presses the bearing into the reserved hole of the clutch bracket with a certain interference, and achieves fixation by utilizing the elastic deformation between the materials. However, the existing technology has the following major problems:

[0003] Frequent bearing jamming: Due to the difficulty in accurately controlling the clearance between the bearing and the bracket during axial interference extrusion, the bearing often becomes jammed due to uneven force during installation or use, affecting the normal opening and closing of the door lock.

[0004] Looseness caused by insufficient riveting: During the interference extrusion process, if the interference between the bearing and the bracket is insufficient or unevenly distributed, the bearing may easily loosen due to insufficient force, thereby affecting the stability and safety of the door lock.

[0005] The lock case hole requires high machining accuracy: In order to ensure the precise fit between the bearing and the lock case hole, the existing technology usually requires the lock case hole to have very high machining accuracy, which not only increases the machining difficulty and cost, but also limits the improvement of production efficiency.

[0006] Strict quality control requirements: Due to the existence of the above problems, sheet metal door locks under existing technology require strict quality control during the production process to ensure the accuracy and reliability of each component, which further increases production costs and time costs.

[0007] In summary, the existing sheet metal door lock bearing fixing method has many shortcomings, and a new, stable, easy-to-operate and low-cost fixing structure is urgently needed to solve the above problems. Utility Model Content

[0008] To address the shortcomings of existing technologies, the present invention provides a bearing fixing structure for sheet metal door locks that securely secures the bearings. This approach not only prevents bearing jamming but also greatly simplifies the operation process and reduces the machining precision requirements for the lock housing, thereby improving production efficiency and quality.

[0009] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A bearing fixing structure for a sheet metal door lock, characterized in that it includes a lock shell, a groove is provided on the rear side of the lock shell, a bearing groove is provided in the middle position of the lock shell, a bearing shell is fixedly provided on one side of the bearing groove, a bearing is provided inside the bearing shell at a position corresponding to the bearing groove, and bending feet are evenly provided on the lock shell and on the outer side of the bearing groove.

[0011] According to a preferred technical solution, the lock housing, the bearing housing and the bending leg are an integrated structure.

[0012] According to a preferred technical solution, reinforcement blocks are symmetrically provided on the inner side of the groove and on both sides of the bearing housing.

[0013] According to a preferred technical solution, a plurality of engaging grooves are provided on the inner side of the groove.

[0014] According to a preferred technical solution, a first rivet is fixedly provided on the inner lower portion of the groove.

[0015] According to a preferred technical solution, a plate groove is provided on the upper portion of the groove, a fixed transverse plate is fixedly provided on the rear side of the plate groove and inside the groove, and a second rivet is fixedly provided on the rear side of the fixed transverse plate.

[0016] According to a preferred technical solution, three bending legs are provided.

[0017] The utility model provides a bearing fixing structure for a sheet metal door lock. It has the following beneficial effects:

[0018] Improved stability: The longitudinal riveting fixation method effectively avoids the problems of bearing jamming and loosening, and improves the stability and reliability of the door lock.

[0019] Simplified operation process: The assembly process is simple and easy, which reduces the skill requirements for operators and improves production efficiency.

[0020] Reduced processing costs: The requirements for lock shell processing accuracy are reduced, which reduces material waste and energy consumption during the processing and reduces production costs.

[0021] Improved product quality: reduced the incidence of quality abnormalities, and increased product qualification rate and market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the back structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the front structure of the utility model;

[0024] Figure 3 For this utility model Figure 2A schematic diagram of the enlarged structure of part A;

[0025] In the figure: 1-lock housing, 2-groove, 3-bearing groove, 4-bearing housing, 5-bearing, 6-bending foot, 7-reinforcement block, 8-engaging groove, 9-first rivet, 10-plate groove, 11-fixed horizontal plate, 12-second rivet. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figure 1-Figure 3 As shown,

[0028] A sheet metal door lock bearing fixing structure includes a lock housing 1, a groove 2 provided on the rear side of the lock housing 1, a bearing groove 3 provided in the middle of the lock housing, a bearing housing 4 fixedly provided on one side of the bearing groove 3, a bearing 5 provided inside the bearing housing 4 at a position corresponding to the bearing groove 3, and bent legs 6 uniformly provided on the lock housing 1 and on the outer sides of the bearing groove 3. The lock housing 1, the bearing housing 4, and the bent legs 6 are an integrated structure.

[0029] Reinforcement blocks 7 are symmetrically positioned on the inner side of groove 2, on either side of bearing housing 4. Multiple sets of engaging grooves 8 are provided on the inner side of groove 2. A first rivet 9 is fixedly mounted on the lower inner portion of groove 2. A plate groove 10 is provided on the upper portion of groove 2. A fixed horizontal plate 11 is fixedly mounted behind plate groove 10 and within groove 2. A second rivet 12 is fixedly mounted behind fixed horizontal plate 11. Three bending legs 6 are provided.

[0030] The bearing 5 of the utility model is fixed by the bending foot 6 of the lock housing 1. The bending foot 6 is longitudinally riveted to the outer edge of the bearing 5 to fix the bearing 5. This solution prevents the bearing 5 from getting stuck, is easy to operate, and has low requirements on the processing accuracy of the lock housing 1, thereby improving production efficiency and quality.

[0031] Technical details of this utility model:

[0032] Change in bearing fixing method: This utility model changes the traditional horizontal extrusion fixing method to longitudinal riveting fixing. This change effectively solves the problem of bearing locking, allowing the bearing to maintain smooth rotation during assembly and use.

[0033] Simplified operation process: During assembly, just place the bearing 5 into the bearing slot 3 and then press it with the riveting fixture. This simple and easy operation greatly reduces the difficulty and time cost of assembly.

[0034] Lower processing precision requirements: Compared with the traditional axial interference extrusion method, the present invention greatly reduces the precision requirements for the lock housing 1 to fit the installation position. This not only reduces processing costs, but also improves production efficiency and product qualification rate.

[0035] Solve the handle shaking problem: By fixing the bearing by longitudinal riveting, the handle shaking problem caused by loosening of the bearing riveting is effectively avoided, and the overall stability and service life of the door lock 1 are improved.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing fixing structure for a sheet metal door lock, characterized in that: The invention comprises a lock shell (1), a groove (2) is provided on the rear side of the lock shell (1), a bearing groove (3) is provided in the middle position of the lock shell, a bearing housing (4) is fixedly provided on the bearing groove (3) at one side of the groove (2), a bearing (5) is provided inside the bearing housing (4) at a position corresponding to the bearing groove (3), and bending legs (6) are evenly provided on the lock shell (1) and on the outer side of the bearing groove (3).

2. The bearing fixing structure of a sheet metal door lock according to claim 1, characterized in that: The lock housing (1), the bearing housing (4) and the bending leg (6) are an integrated structure.

3. The bearing fixing structure of a sheet metal door lock according to claim 1, characterized in that: Reinforcement blocks (7) are symmetrically arranged on the inner side of the groove (2) and on both sides of the bearing housing (4).

4. The bearing fixing structure of a sheet metal door lock according to claim 1, characterized in that: A plurality of groups of engaging grooves (8) are provided on the inner side of the groove (2).

5. The bearing fixing structure of a sheet metal door lock according to claim 4, characterized in that: A first rivet (9) is fixedly provided on the inner lower portion of the groove (2).

6. The bearing fixing structure of a sheet metal door lock according to claim 1, characterized in that: A plate groove (10) is provided on the upper portion of the groove (2), a fixed transverse plate (11) is fixedly provided on the rear side of the plate groove (10) and located inside the groove (2), and a second rivet (12) is fixedly provided on the rear side of the fixed transverse plate (11).

7. The bearing fixing structure of a sheet metal door lock according to claim 1, characterized in that: There are three bending legs (6).

Images