Lock body for avoiding deformation of stamping part based on plastic coating process
The lock body structure, constructed using plastic coating and irregularly shaped spring assemblies, solves the problems of burrs on the stamped parts of the lock body and insufficient protection of sensitive components, thereby improving the smoothness and precision of the lock body.
Patent Information
- Application Number
- CN202520437720.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing lock body stamping parts suffer from stamping burrs and lack of protection for sensitive components during use, leading to scratches, wear, and decreased precision.
The edges of the stamped parts are covered with plastic coating, and the lock body structure, which is composed of irregularly shaped springs and plastic-coated plate assemblies, provides additional protection and stability, ensuring the smoothness and precision of the lock body.
It effectively prevents burrs, scratches, and wear, reduces friction, improves the smoothness of lock body operation and service life, and protects the precision of sensitive components.
Smart Images

Figure CN223893968U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock body technology, specifically to a lock body based on a plastic coating process to prevent deformation of stamped parts. Background Technology
[0002] Car door locks are an important component of a vehicle's safety system. They are responsible for controlling the opening and closing of the doors to provide more convenient and secure functions. The plastic coating process prevents deformation of the stamped parts. The lock body is mainly protected and fixed by covering the stamped parts with plastic to prevent them from deforming during use.
[0003] However, in existing applications of stamped lock bodies, especially in mechanical components requiring frequent locking and unlocking, the stamped parts typically use exposed metal surfaces for direct contact. This leads to the following problems with the use of stamped lock bodies:
[0004] 1. Stamping burr problem: During the manufacturing process of lock body stamping parts, the stamping process can produce burrs on the edges of the stamping parts. These tiny protrusions not only affect the appearance quality of the stamping parts, but also easily cause scratches, wear and even functional failure when in contact or sliding with other parts in the lock body.
[0005] 2. Lack of effective protection for sensitive parts: Some precision components in the lock body (such as mating surfaces or contact surfaces) are very sensitive, and any slight deformation can affect the working accuracy of the lock body stamping parts. However, existing lock body stamping parts fail to provide sufficient protection to prevent deformation of the lock body stamping parts during use.
[0006] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0007] In view of the problems in the related technologies, this utility model proposes a lock body based on plastic coating process to avoid deformation of stamped parts, so as to overcome the above-mentioned technical problems existing in the existing related technologies.
[0008] Therefore, the specific technical solution adopted by this utility model is as follows:
[0009] A lock body based on a plastic coating process to prevent deformation of stamped parts includes a lock shell, a control component on one side of the lock shell, an adjustment component in contact with the control component, an auxiliary component mounted above the adjustment component, and a limiting component on both the auxiliary component and the adjustment component. The limiting component includes a shaped spring four sleeved on the adjustment component, one end of the shaped spring four in contact with one side of the adjustment component, and the other end of the shaped spring four in contact with a limiting plate. One end of the limiting plate is in contact with the auxiliary component, and the limiting plate is mounted on the surface of the adjustment component. A shaped spring five is connected to the limiting plate, one end of the shaped spring five is connected to a plastic-coated iron plate three, and the plastic-coated iron plate three is connected to one end of the adjustment component. A connecting block passes through the plastic-coated iron plate three and is connected to the surface of the limiting plate. One side of the plastic-coated iron plate three is in contact with one side of the adjustment component.
[0010] Furthermore, the control component includes a mounting groove on one side of the lock housing, with multiple mounting holes on the inner wall of the mounting groove. Control components are installed in the mounting holes and on the inner wall of the mounting groove. A shaped spring is fitted on the lower surface of the control component. One end of the shaped spring is connected to the control component, and the other end of the shaped spring contacts the inner wall of the mounting groove. A connection port is provided on one side of the control component. An auxiliary component is installed on the inner wall of the connection port. One end of the auxiliary component is connected to the lock housing, and a spring is fitted on the surface of the other end of the auxiliary component. One end of the spring contacts one side of the control component.
[0011] Furthermore, the adjustment assembly includes a mounting plate disposed on the inner wall of the lock housing, with mounting post one and mounting post two penetrating through the mounting plate and the lock housing. A shaped spring two is sleeved on the lower surface of mounting post one, and the surface of mounting post two and the top of the mounting plate are in contact with the shaped spring four. One upper end of mounting post two is connected to a plastic-coated iron plate three. Limiting block one and limiting block two are fixed on one side of the mounting plate, and the lower parts of limiting block one and limiting block two are penetratingly connected to the lock housing.
[0012] One side of the limiting block 1 is in contact with the irregular spring 2, one side of the limiting block 2 is in contact with one end of the irregular spring 4, the other end of the irregular spring 2 is in contact with an adjusting plate, one side of the adjusting plate is in contact with one side of the iron plastic-coated plate 3, the adjusting plate is installed on the surface of the mounting column 1, the iron plastic-coated plate 1 is installed above the mounting column 1, and one end of the iron plastic-coated plate 1 is in contact with one end of the control component.
[0013] Furthermore, the auxiliary components include a mounting column three that runs through the top of the mounting plate, and a plastic-coated iron plate two on the surface of the mounting column three. One side of the plastic-coated iron plate two contacts one end of the limiting plate, and an irregularly shaped spring three is connected to the plastic-coated iron plate two.
[0014] Furthermore, a lock housing cover is installed on the top of the lock housing, and multiple fixing screws are threaded on the lock housing cover. One end of the fixing screw is threaded to the lock housing cover. The lock housing cover passes through the mounting post three, the irregular spring three, the mounting post two, and the mounting post one. The lock housing cover has a movable groove one.
[0015] Furthermore, a limiting hole is provided on the adjusting plate, and a limiting post is installed on the inner wall of the limiting hole. A movable groove is provided on the plastic-coated iron plate, and the limiting post is sleeved on the inner wall of the movable groove and the movable groove.
[0016] Furthermore, a placement groove is provided on one side of the lock housing, and an auxiliary block is installed on the inner wall of the placement groove. One side of the auxiliary block is opposite to one end of the control component.
[0017] The beneficial effects of this utility model are as follows:
[0018] (1) The application of plastic coating process can cover the burrs that may be generated on the edge of the stamped parts, and prevent the small protrusions from scratching and wearing when they come into contact with or slide with other parts inside the lock body, thereby ensuring the smoothness and durability of the lock body operation. For those precision parts in the lock body that are very sensitive to deformation, such as mating surfaces or contact surfaces, the plastic coating layer provides an additional protective barrier, reducing the risk of minor deformation caused by external forces, and ensuring that the working accuracy of the lock body is not affected.
[0019] (2) The application of plastic coating process reduces the large friction coefficient caused by direct contact between the stamped parts and the surface, making the lock body easier to open and close, and reducing wear after long-term use, thus extending the service life of the lock body. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the main structure of a lock body based on a plastic coating process to avoid deformation of stamped parts according to an embodiment of the present utility model;
[0022] Figure 2 This is a schematic diagram of a control component of a lock body based on a plastic coating process to prevent deformation of stamped parts, according to an embodiment of the present invention. Figure 1 ;
[0023] Figure 3 This is a schematic diagram of a control component of a lock body based on a plastic coating process to prevent deformation of stamped parts, according to an embodiment of the present invention. Figure 2 ;
[0024] Figure 4This is a schematic diagram of the adjustment component, auxiliary component, and limiting component of a lock body based on a plastic coating process to prevent deformation of stamped parts according to an embodiment of the present utility model.
[0025] Figure 5 This is a schematic diagram of a lock body cover structure based on a plastic coating process to prevent deformation of stamped parts according to an embodiment of the present utility model;
[0026] Figure 6 This is a schematic diagram of a control component structure for a lock body that avoids deformation of stamped parts based on a plastic coating process, according to an embodiment of the present utility model.
[0027] Figure 7 This is a partial structural diagram of the adjustment component and the limiting component of a lock body based on a plastic coating process to prevent deformation of stamped parts, according to an embodiment of the present utility model.
[0028] Figure 8 This is a partial structural diagram of an adjustment component, auxiliary component, and limiting component of a lock body based on a plastic coating process to prevent deformation of stamped parts, according to an embodiment of the present utility model.
[0029] In the picture:
[0030] 1. Lock housing; 2. Control assembly; 201. Control component; 202. Irregular spring one; 203. Auxiliary component; 204. Spring; 3. Adjustment assembly; 301. Mounting plate; 302. Mounting post one; 303. Mounting post two; 304. Irregular spring two; 305. Limiting block one; 306. Limiting block two; 307. Adjustment plate; 308. Plastic-coated iron plate one; 4. Auxiliary assembly; 401. Mounting post three; 402. Plastic-coated iron plate two; 403. Irregular spring three; 5. Limiting assembly; 501. Irregular spring four; 502. Limiting plate; 503. Irregular spring five; 504. Plastic-coated iron plate three; 505. Connecting block; 6. Lock housing cover; 7. Fixing screw; 8. Limiting post; 9. Auxiliary block. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Example 1:
[0033] like Figures 1-8As shown, a lock body based on plastic coating process to avoid deformation of stamped parts according to an embodiment of the present utility model includes a lock body 1, a control component 2 is provided on one side of the lock body 1, the control component 2 includes a mounting groove opened on one side of the lock body 1, a plurality of mounting holes are opened on the inner wall of the mounting groove, a control component 201 is installed in the mounting holes and the inner wall of the mounting groove, a shaped spring 202 is fitted on the lower surface of the control component 201, one end of the shaped spring 202 is connected to the control component 201, the other end of the shaped spring 202 contacts the inner wall of the mounting groove, and a connection port is opened on one side of the control component 201;
[0034] An auxiliary component 203 is installed on the inner wall of the connection port. One end of the auxiliary component 203 is connected to the lock housing 1. A spring 204 is sleeved on the surface of the other end of the auxiliary component 203. One end of the spring 204 is in contact with one side of the control component 201. A placement groove is opened on one side of the lock housing 1. An auxiliary block 9 is installed on the inner wall of the placement groove. One side of the auxiliary block 9 is opposite to one end of the control component 201.
[0035] The control component 2 contacts the adjustment component 3. The adjustment component 3 includes a mounting plate 301 disposed on the inner wall of the lock housing 1. Mounting post 1 302 and mounting post 2 303 pass through the mounting plate 301 and the lock housing 1. A shaped spring 2 304 is sleeved on the lower surface of mounting post 1 302. Limiting block 1 305 and limiting block 2 306 are respectively fixed on one side of the mounting plate 301. The lower parts of limiting block 1 305 and limiting block 2 306 are connected through the lock housing 1.
[0036] One side of the limiting block 305 contacts the irregular spring 304, and the other end of the irregular spring 304 contacts the adjusting plate 307. The adjusting plate 307 is installed on the surface of the mounting post 302. A plastic-coated iron plate 308 is installed above the mounting post 302, and one end of the plastic-coated iron plate 308 contacts one end of the control component 201.
[0037] Example 2:
[0038] like Figures 1-8 As shown, according to an embodiment of the present utility model, an auxiliary component 4 is installed above the adjustment component 3. The auxiliary component 4 includes a mounting post 401 that passes through the mounting plate 301. The surface of the mounting post 401 is provided with a plastic-coated iron plate 402. A shaped spring 403 is connected to the plastic-coated iron plate 402.
[0039] A lock housing cover 6 is installed on the top of the lock housing 1. Multiple fixing screws 7 are threaded onto the lock housing cover 6. One end of the fixing screws 7 is threaded onto the lock housing 1. The lock housing cover 6 passes through the mounting post 3 401, the irregular spring 3 403, the mounting post 2 303, and the mounting post 1 302. The lock housing cover 6 has a movable groove 1. The lock housing cover 6, the lock housing 1, and the mounting plate 301 have movable openings with opposite positions. The adjusting plate 307 has a limiting hole. A limiting post 8 is installed on the inner wall of the limiting hole. The iron plastic-coated plate 1 308 has a movable groove 2. The limiting post 8 is sleeved on the inner wall of the movable groove 2 and the movable groove 1.
[0040] The auxiliary component 4 and the adjustment component 3 are provided with a limiting component 5. The limiting component 5 includes a shaped spring 501 sleeved on the adjustment component 3. The surface of the mounting column 303 and the top of the mounting plate 301 are in contact with the shaped spring 501. One end of the shaped spring 501 is in contact with one side of the adjustment component 3. One side of the limiting block 306 is in contact with one end of the shaped spring 501. The other end of the shaped spring 501 is in contact with a limiting plate 502. One end of the limiting plate 502 is in contact with the auxiliary component 4. One side of the plastic-coated iron plate 402 is in contact with one end of the limiting plate 502. The limiting plate 502 is installed on the surface of the adjustment component 3.
[0041] A non-circular spring 503 is connected to the limiting plate 502. One end of the non-circular spring 503 is connected to a plastic-coated iron plate 3 504. The plastic-coated iron plate 3 504, the plastic-coated iron plate 2 402, and the plastic-coated iron plate 1 308 are composed of stamped parts and plastic-coated parts. One end of the plastic-coated iron plate 3 504 is connected to the adjusting component 3. The upper end of the mounting column 2 303 is connected to the plastic-coated iron plate 3 504. A connecting block 505 passes through the plastic-coated iron plate 3 504. The connecting block 505 is connected to the surface of the limiting plate 502. One side of the plastic-coated iron plate 3 504 is in contact with one side of the adjusting component 3. One side of the adjusting plate 307 is in contact with one side of the plastic-coated iron plate 3 504.
[0042] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.
[0043] In summary, with the help of the above-mentioned technical solution of this utility model, during use, the control component 201 is fixed in the mounting groove. A shaped spring 202 provides elastic support below the control component 201. When force is applied to the control component 201, it can move along the mounting groove, simultaneously compressing the shaped spring 202. The spring 204 provides additional support and a reset function to one side of the control component 201. The auxiliary component 203 connects the control component 201 and the lock housing 1, ensuring their relative positions. The adjustment assembly 3 includes a mounting plate 301 and mounting posts 302 and 303 passing through it. Mounting post 2 303 is equipped with irregularly shaped springs 2 304 and 4 501, and limiting blocks 1 305 and 2 306 on mounting plate 301, which are used to maintain the correct spacing between components and provide necessary elasticity. A plastic-coated iron plate 3 504 is connected above mounting post 2 303, which increases the stability between components and helps reduce noise during movement. Adjustment plate 307 is located on mounting post 1 302 and is responsible for contacting the plastic-coated iron plate 3 504 to achieve precise adjustment of the components. The plastic-coated iron plate 2 402 on mounting post 3 401 not only contacts the limiting plate 502 but is also connected to the irregularly shaped spring 3 403. The adjusting component 3 is used to further stabilize its position and also participates in the overall lock body, ensuring coordinated operation of all components. The limiting component 5 mainly includes a four-shaped spring 501, a limiting plate 502, a five-shaped spring 503, and a plastic-coated iron plate 504, all fitted onto the adjusting component 3. These components work together to limit the range of motion of the adjusting component 3, preventing damage caused by excessive movement. The limiting plate 502 contacts the auxiliary component 4 and is fixed to the lock housing 1 via a connecting block 505, ensuring the stability and reliability of the entire system. The lock housing cover 6 is tightly connected to the lock housing 1 by multiple fixing screws 7, forming a closed system. The space protects all internal components from the influence of the external environment. It has movable grooves that allow the limiting post 8 to move freely within a certain range while maintaining a good sealing effect. When the user performs the unlocking or locking operation, the control component 2 responds to the user's action first and transmits the force to the adjusting component 3 through the internal spring system. The latter then transmits this force to the auxiliary component 4 and the limiting component 5. In this process, all movements are buffered and smoothed by the spring system and plastic coating material, ensuring the smoothness and accuracy of each operation. Finally, all components work together to complete the unlocking and locking process while maintaining the long-term durability of the lock body.
[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A lock body based on a plastic coating process to avoid deformation of stamped parts, characterized in that, The system includes a lock housing (1), a control component (2) on one side of the lock housing (1), an adjustment component (3) in contact with the control component (2), an auxiliary component (4) mounted above the adjustment component (3), and a limiting component (5) on both the auxiliary component (4) and the adjustment component (3). The limiting component (5) includes a shaped spring four (501) sleeved on the adjustment component (3), one end of the shaped spring four (501) in contact with one side of the adjustment component (3), and the other end of the shaped spring four (501) in contact with a limiting plate (502). One end of the plate is in contact with the auxiliary component (4). The limiting plate (502) is installed on the surface of the adjusting component (3). A shaped spring five (503) is connected to the limiting plate (502). One end of the shaped spring five (503) is connected to a plastic-coated iron plate three (504). The plastic-coated iron plate three (504) is connected to one end of the adjusting component (3). A connecting block (505) passes through the plastic-coated iron plate three (504). The connecting block (505) is connected to the surface of the limiting plate (502). One side of the plastic-coated iron plate three (504) is in contact with one side of the adjusting component (3).
2. A lock body based on a plastic coating process to avoid deformation of stamped parts according to claim 1, characterized in that, The control component (2) includes a mounting groove on one side of the lock housing (1). The inner wall of the mounting groove has multiple mounting holes. A control component (201) is installed in the mounting holes and on the inner wall of the mounting groove. A shaped spring (202) is fitted on the lower surface of the control component (201). One end of the shaped spring (202) is connected to the control component (201), and the other end of the shaped spring (202) is in contact with the inner wall of the mounting groove. A connection port is provided on one side of the control component (201). An auxiliary component (203) is installed on the inner wall of the connection port. One end of the auxiliary component (203) is connected to the lock housing (1), and a spring (204) is fitted on the surface of the other end of the auxiliary component (203). One end of the spring (204) is in contact with one side of the control component (201).
3. A lock body based on a plastic coating process to avoid deformation of stamped parts according to claim 2, characterized in that, The adjustment component (3) includes an installation plate (301) provided on the inner wall of the lock housing (1). The installation plate (301) and the lock housing (1) are connected by an installation post 1 (302) and an installation post 2 (303). The lower surface of the installation post 1 (302) is fitted with a shaped spring 2 (304). The surface of the installation post 2 (303) and the upper part of the installation plate (301) are in contact with the shaped spring 4 (501). The upper end of the installation post 2 (303) is connected to the plastic-coated iron plate 3 (504). The side of the installation plate (301) is fixed with a limiting block 1 (305) and a limiting block 2 (306). The lower part of the limiting block 1 (305) and the limiting block 2 (306) are connected to the lock housing (1). One side of the first limiting block (305) is in contact with the second irregular spring (304), one side of the second limiting block (306) is in contact with one end of the fourth irregular spring (501), the other end of the second irregular spring (304) is in contact with the adjusting plate (307), one side of the adjusting plate (307) is in contact with one side of the plastic-coated iron plate (504), the adjusting plate (307) is mounted on the surface of the first mounting post (302), the first plastic-coated iron plate (308) is mounted above the first mounting post (302), and one end of the plastic-coated iron plate (308) is in contact with one end of the control component (201).
4. A lock body based on a plastic coating process to avoid deformation of stamped parts according to claim 3, characterized in that, The auxiliary component (4) includes a mounting post three (401) that runs through the top of the mounting plate (301). The surface of the mounting post three (401) is provided with a plastic-coated iron plate two (402). One side of the plastic-coated iron plate two (402) is in contact with one end of the limiting plate (502). A shaped spring three (403) is connected to the plastic-coated iron plate two (402).
5. A lock body based on a plastic coating process to avoid deformation of stamped parts according to claim 4, characterized in that, A lock housing cover (6) is installed on the top of the lock housing (1). Multiple fixing screws (7) are threaded onto the lock housing cover (6). One end of the fixing screw (7) is threaded onto the lock housing (1). Mounting post three (401), irregular spring three (403), mounting post two (303), and mounting post one (302) are connected through the lock housing cover (6). A movable groove one is provided on the lock housing cover (6).
6. A lock body based on a plastic coating process to avoid deformation of stamped parts according to claim 5, characterized in that, The adjusting plate (307) has a limiting hole, and a limiting post (8) is installed on the inner wall of the limiting hole. The first plastic-coated iron plate (308) has a second movable groove, and the limiting post (8) is sleeved on the inner wall of the second movable groove and the first movable groove.
7. A lock body based on a plastic coating process to avoid deformation of stamped parts according to claim 6, characterized in that, The lock housing (1) has a placement groove on one side, and an auxiliary block (9) is installed on the inner wall of the placement groove. One side of the auxiliary block (9) is opposite to one end of the control component (201).