Automobile central control door lock capable of preventing mistaken locking
By designing the transmission and limiting parts, and utilizing the connecting sleeve and slider carriage structure, the problem of accidental opening of car doors due to misoperation of the central locking system is prevented from being malfunctioned, thus improving safety.
Patent Information
- Application Number
- CN202423294865.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing central locking systems in cars are prone to causing motors to rotate and open the doors if operators accidentally press buttons, leading to dangerous situations.
By setting up a transmission part and a limiting part, the output end of the motor is connected to the worm gear using a connecting sleeve. The sliding displacement of the slider and the carriage drives the connecting sleeve away from the worm gear, preventing the motor from malfunctioning and reducing the probability of accidentally opening the door.
It effectively reduces the probability of accidental door opening due to misoperation, thus improving the safety of car use.
Smart Images

Figure CN223824792U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of central locking technology, specifically to a car central locking system that prevents accidental locking. Background Technology
[0002] Central locking systems in automobiles are designed for convenient and safe use, providing centralized control over the locking and unlocking of all four doors. The operation of a central locking system involves converting electrical energy into mechanical energy, using an electric motor to drive gears to open and close the doors. Its basic components include a door lock switch, a door lock actuator, and a door lock controller.
[0003] Existing central locking systems in automobiles can cause dangerous situations if the operator accidentally presses the lock button, causing the internal motor to rotate and drive the transmission mechanism to open the door. To address this issue, we propose a central locking system designed to prevent accidental locking. Utility Model Content
[0004] The purpose of this utility model is to provide a car central locking system that prevents accidental locking, in order to solve the problem mentioned in the background art that existing car central locking systems can cause dangerous situations when the operator accidentally touches the door lock button, causing the motor inside the door lock to rotate and drive the transmission structure to open the car door.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a central locking system for automobiles that prevents accidental locking, comprising a housing, a transmission part, and a limiting part:
[0006] The transmission unit is located inside the housing and has a gear rotatably mounted inside the housing. A worm gear is laterally rotatably mounted inside the housing and meshes with the gear. The shaft of the gear passes through the housing and extends to the outside of the housing. A limiting part is located inside the housing and has a motor mounted inside the housing. A slider is laterally slidably mounted inside the housing, and a carriage is vertically slidably mounted at the bottom of the slider. A connecting sleeve is located at the bottom of the carriage and is positioned between the motor and the worm gear. The connecting sleeve connects the output end of the motor to the worm gear. The motor drives the worm gear to rotate, which in turn drives the gear to rotate.
[0007] By adopting the above technical solution, the output end of the motor can be connected to the worm gear through the setting of the connecting sleeve, so that the motor can drive the gear meshing with the worm gear to rotate. By sliding the slider set at the top of the sliding housing, the slide connected to it can be moved inside the housing, which can move the connecting sleeve away from the worm gear. Thus, when the operator accidentally touches the door lock button, the motor will not drive the worm gear separated from its output end to rotate, thereby reducing the probability of the door being opened accidentally.
[0008] Preferably, the top of the housing has a groove, the slider is embedded in the groove and slidably connected to the housing, the slider slides laterally along the groove, and the slider can also slide vertically along the groove.
[0009] By adopting the above technical solution, the slider can be allowed to slide and move on the top of the outer shell.
[0010] Preferably, the limiting part also has a fixing rod disposed at the bottom of the slider, and the inside of the housing is provided with fixing hole a and fixing hole b, which are engaged with the fixing rod.
[0011] By adopting the above technical solution, the position of the slider can be fixed in different positions by inserting the fixing rod into fixing hole a or fixing hole b.
[0012] Preferably, the limiting part also has a groove formed at the bottom of the slider, and the slide is embedded in the groove and vertically slidably connected to the slider.
[0013] By adopting the above technical solution, the carriage can slide up and down along the slide groove at the bottom of the slider.
[0014] Preferably, the limiting part also has a spring disposed at the bottom of the slider, the spring being located between the carriage and the slider.
[0015] By adopting the above technical solution, the spring force can be used to push the slider upward.
[0016] Preferably, the bottom of the carriage has a rotating groove, and the connecting sleeve is embedded in the rotating groove and rotatably connected to the carriage.
[0017] By adopting the above technical solution, the connecting sleeve can be rotated at the bottom of the carriage.
[0018] Preferably, the motor has a hexagonal output shaft at its output end, the connecting sleeve has a hexagonal groove inside, and the worm gear also has a hexagonal drive shaft at the end near the motor. The connecting sleeve and the worm gear are laterally slidably connected.
[0019] By adopting the above technical solution, the worm can slide into the connecting sleeve through the lateral sliding displacement of the connecting sleeve, and can drive the worm to rotate when the motor rotates.
[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: by providing a transmission part and a limiting part, the output end of the motor can be connected to the worm gear through the setting of the connecting sleeve, so that the motor can drive the gear meshing with the worm gear to rotate. By sliding the slider set at the top of the sliding shell, the slide connected to it can be moved within the shell, which can drive the connecting sleeve away from the worm gear. Thus, when the operator accidentally touches the door lock button, the motor will not drive the worm gear separated from its output end to rotate, thereby reducing the occurrence of dangerous situations. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this application;
[0022] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this application;
[0023] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this application;
[0024] Figure 4 This is a schematic diagram of the transmission part structure of this application;
[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the connection between the slider and the carriage in this application;
[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of the connection between the slider and the carriage in this application;
[0027] Figure 7 This is a schematic diagram of the cross-sectional structure of the outer shell of this application.
[0028] In the figure: 1. Outer shell; 101. Fixing hole a; 102. Fixing hole b; 2. Transmission part; 201. Gear; 202. Worm gear; 3. Limiting part; 301. Motor; 302. Slider; 303. Fixing rod; 304. Carriage; 305. Spring; 306. Connecting sleeve. Detailed Implementation
[0029] 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.
[0030] Example 1
[0031] Please see Figure 1 , Figure 2 and Figure 3This embodiment provides a technical solution: a central locking system for automobiles that prevents accidental locking, comprising a housing 1, a transmission part 2, and a limiting part 3.
[0032] The transmission unit 2 is located inside the housing 1. A gear 201 is rotatably mounted inside the housing 1, and a worm gear 202 is laterally rotatably mounted inside the housing 1. The worm gear 202 meshes with the gear 201. The shaft of the gear 201 passes through the housing 1 and extends to the outside of the housing 1, connecting to an external transmission structure. A limiting part 3 is located inside the housing 1 and includes a motor 301 mounted on the housing 1. The motor 301 is connected to the vehicle's control panel. A slider 302 is laterally slidable inside the housing 1. A carriage 304 is vertically slidable at the bottom of the slider 302. A connecting sleeve 306 is located at the bottom of the carriage 304, between the motor 301 and the worm gear 201. Between 02, the connecting sleeve 306 is used to connect the output end of the motor 301 and the worm 202. The motor 301 drives the worm 202 to rotate, which in turn drives the gear 201 to rotate. The connecting sleeve 306 connects the output end of the motor 301 to the worm 202, so that the motor 301 can drive the gear 201, which is meshed with the worm 202, to rotate. The slider 302, which is slidably set at the top of the sliding housing 1, drives the slide 304 connected to it to move within the housing 1. This can move the connecting sleeve 306 away from the worm 202, so that when the operator accidentally touches the door lock button, the motor 301 will not drive the worm 202, which is separated from its output end, to rotate, thereby reducing the occurrence of dangerous situations.
[0033] The desired effect of this embodiment is that the connecting sleeve 306 enables the motor 301 to drive the worm gear 202 to rotate, thereby controlling the opening and closing of the door lock. By sliding the slide 304 to move the connecting sleeve 306 away from the worm gear 202, the motor 301 will not drive the worm gear 202 to rotate when it is rotating.
[0034] Example 2
[0035] Please see Figure 3 , Figure 4 and Figure 5 This embodiment provides a technical solution: a central locking system for automobiles that prevents accidental locking, including a limiting part 3, a slider 302, and a carriage 304.
[0036] The top of the outer casing 1 is provided with a sliding groove, and the slider 302 is embedded in the sliding groove and slidably connected to the outer casing 1. The slider 302 can slide laterally along the sliding groove, and the slider 302 can also slide vertically along the sliding groove.
[0037] This allows slider 302 to slide and move on the top of housing 1.
[0038] A fixing rod 303 is provided at the bottom of the slider 302. The housing 1 has fixing holes a101 and b102 inside, and both fixing holes a101 and b102 are engaged with the fixing rod 303.
[0039] The slider 302 can be fixed in different positions by inserting the fixing rod 303 into the fixing hole a101 or fixing hole b102. A sliding groove is provided at the bottom of the slider 302, and the slide 304 is embedded in the sliding groove and vertically slidably connected to the slider 302, allowing the slide 304 to slide up and down along the sliding groove at the bottom of the slider 302. A spring 305 is provided at the bottom of the slider 302, located between the slide 304 and the slider 302. The elastic force provided by the spring 305 can push the slider 302 to slide upward.
[0040] The desired effect of this embodiment is that the slider 302 is pushed upward by the spring 305, and the fixing rod 303 is inserted into the fixing hole a101 or the fixing hole b102, so that the position of the slider 302 can be fixed in different positions.
[0041] Example 3
[0042] Please see Figure 4 , Figure 5 and Figure 6 This embodiment provides a technical solution: a central locking system for automobiles that prevents accidental locking, comprising a housing 1, a transmission part 2, and a limiting part 3.
[0043] The bottom of the slide 304 has a rotating groove, and the connecting sleeve 306 is embedded in the rotating groove and rotatably connected to the slide 304, allowing the connecting sleeve 306 to rotate at the bottom of the slide 304. The output end of the motor 301 is provided with a hexagonal output shaft, and the inside of the connecting sleeve 306 is provided with a hexagonal sliding groove. The end of the worm 202 near the motor 301 is also provided with a hexagonal drive shaft. The connecting sleeve 306 and the worm 202 are laterally slidably connected. Through the lateral sliding displacement of the connecting sleeve 306, one end of the worm 202 can slide into the connecting sleeve 306, so that the worm 202 can be driven to rotate when the motor 301 rotates.
[0044] The desired effect of this embodiment is that, through the connection sleeve 306, while allowing for lateral sliding displacement, the output end of the motor 301 can also be connected to the worm gear 202, so that when the motor 301 rotates, it can drive the worm gear 202 to rotate.
[0045] Work away from the target: First, the output end of the motor 301 is connected to the worm gear 202 through the connecting sleeve 306, so that the motor 301 can drive the gear 201 meshing with the worm gear 202 to rotate. Then, the slider 302 is pressed down to move down along the slide 304, so that the fixed rod 303 slides out from the fixed hole a101, allowing the slider 302 to slide laterally. Then, the slider 302 is slid towards the motor 301. The output end of the motor 301 is provided with a hexagonal output shaft, and the inside of the connecting sleeve 306 has six... The worm gear 202 has a hexagonal drive shaft at one end near the motor 301. The connecting sleeve 306 is laterally slidably connected to the worm gear 202. Through the lateral sliding displacement of the connecting sleeve 306, one end of the worm gear 202 can slide into the connecting sleeve 306. When the motor 301 rotates, it can drive the worm gear 202 to rotate, causing one end of the worm gear 202 to slide out of the connecting sleeve 306. This prevents the motor 301 from driving the worm gear 202, which is separated from its output end, to rotate when the operator accidentally touches the door lock button, thus reducing the occurrence of dangerous situations.
[0046] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A central locking system for automobiles that prevents accidental locking, characterized in that, include: Outer shell (1); The transmission part (2) is disposed inside the housing (1). The transmission part (2) has a gear (201) rotatably disposed inside the housing (1). A worm (202) is laterally rotatably disposed inside the housing (1). The worm (202) meshes with the gear (201). The shaft of the gear (201) passes through the housing (1) and extends to the outside of the housing (1). A limiting part (3) is provided inside the outer shell (1). The limiting part (3) has a motor (301) provided in the outer shell (1). A slider (302) is slidably arranged inside the outer shell (1). A slide frame (304) is slidably arranged at the bottom of the slider (302). A connecting sleeve (306) is provided at the bottom of the slide frame (304). The connecting sleeve (306) is located between the motor (301) and the worm (202). The connecting sleeve (306) is used to connect the output end of the motor (301) and the worm (202). The motor (301) drives the worm (202) to rotate so as to drive the gear (201) to rotate.
2. The automotive central locking system for preventing accidental locking according to claim 1, characterized in that: The top of the outer casing (1) is provided with a sliding groove, and the slider (302) is embedded in the sliding groove and slidably connected to the outer casing (1). The slider (302) slides laterally along the sliding groove, and the slider (302) can also slide vertically along the sliding groove.
3. A car central locking system for preventing accidental locking according to claim 1, characterized in that: The limiting part (3) also has a fixing rod (303) provided at the bottom of the slider (302). The housing (1) has a fixing hole a (101) and a fixing hole b (102) inside, and the fixing hole a (101) and the fixing hole b (102) are engaged with the fixing rod (303).
4. A car central locking system for preventing accidental locking according to claim 1, characterized in that: The limiting part (3) also has a groove at the bottom of the slider (302), and the slide (304) is embedded in the groove and vertically slidably connected to the slider (302).
5. A car central locking system for preventing accidental locking according to claim 4, characterized in that: The limiting part (3) also has a spring (305) disposed at the bottom of the slider (302), which is located between the carriage (304) and the slider (302).
6. A car central locking system for preventing accidental locking according to claim 1, characterized in that: The bottom of the slide (304) is provided with a rotating groove, and the connecting sleeve (306) is embedded in the rotating groove and rotatably connected to the slide (304).
7. A car central locking system for preventing accidental locking according to claim 1, characterized in that: The output end of the motor (301) is provided with a hexagonal output shaft, the inside of the connecting sleeve (306) is provided with a hexagonal sliding groove, and the end of the worm (202) near the motor (301) is also provided with a hexagonal transmission shaft. The connecting sleeve (306) and the worm (202) are laterally slidably connected.