Door lock linkage mechanism for front opening door of new energy low-speed four-wheeler
By designing a door lock linkage mechanism and utilizing the linkage of components such as the outer lock cylinder, inner lock handle and pull rod, the automatic locking function of the front door of a new energy low-speed four-wheel vehicle is realized, solving the problem of the door opening caused by wind pressure and misoperation during driving, and improving driving safety.
Patent Information
- Application Number
- CN202510941712.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2025-09-09
AI Technical Summary
The door locks of existing new energy low-speed four-wheel vehicles with front doors have poor stability during driving, are easily affected by side wind pressure, causing the doors to open, and are easily opened due to passenger misoperation, affecting driving safety.
A door lock linkage mechanism is designed, including an outer lock cylinder, an inner lock handle, a pull rod, and a locking device. Through electrical signals and mechanical linkage, the door can be automatically locked at 20 km/h. The door can be automatically locked by combining remote control and mechanical key operation to enhance the reliability of the door lock.
It improves the stability of the door lock, avoids the door opening due to misoperation, ensures driving safety, provides multiple locking and unlocking methods inside and outside the passenger compartment, and enhances vehicle safety.
Smart Images
Figure CN120608623A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of vehicle accessories, and in particular relates to a door lock linkage mechanism for a front-opening door of a new energy low-speed four-wheel vehicle. Background Art
[0002] As a supplement to new energy vehicles, new energy low-speed four-wheel vehicles provide convenient and comfortable means of transportation for urban and rural residents. Among them, the door lock serves as a door retainer, ensuring the reliability of the door closing at all times and ensuring the driving safety of the entire vehicle. Existing front-opening doors do not have an internal locking mechanism and are affected by side wind pressure during driving. Due to the poor stability of the door lock, it is very easy for the door to open while the vehicle is driving. In addition, if the person in the vehicle mistakenly operates the opening handle while the vehicle is driving, it is easy to cause the door to open, affecting the driving safety of the entire vehicle. In response to this situation, we need to propose an improved door lock linkage mechanism for the front-opening door of the vehicle to solve the above problems. Summary of the Invention
[0003] The purpose of the present invention is to provide a door lock linkage mechanism for a new energy low-speed four-wheel vehicle with a front door, so as to solve the problems raised in the above background technology.
[0004] The purpose of the present invention can be achieved by adopting the following technical solutions: A door lock linkage mechanism for a front-opening door of a new energy low-speed four-wheel vehicle comprises a left door assembly and a right door assembly symmetrically arranged on the left and right and a central control box connected thereto; the door panels of the left and right door assemblies are PC doors, and door brackets and door lock linkage components are provided on their inner sides; the door brackets are connected to the PC doors by screws, and outer door handles connected thereto by screws are provided on the outer sides of the PC doors; the door lock linkage component comprises a door lock mechanism connected to one side of the door bracket by bolts; the door lock mechanism comprises an outer lock core horizontally arranged on the end face of the outer door handle; a lock core paddle is passed through one end of the outer lock core, and is connected to the door lock mechanism by a lock core mounting screw; a locker is also provided at the lower part of the door lock mechanism, and is interconnected by a linkage portion provided therebetween.
[0005] The linkage part includes a pull rod A, a pull rod B, a pull rod C, an inner locking handle and a rotating shaft screw; the inner locking handle is arranged horizontally between the vehicle door lock mechanism and the locker, and is installed on the vehicle door bracket through the rotating shaft screw; the inner locking handle is a strip-shaped handle, and a rotating block B and a rotating block C are hinged at the upper and lower parts of its front end respectively, a circular through hole is provided in the middle, and a rotating block D is hinged at the rear end of the circular through hole.
[0006] The latch is mounted on the door bracket below the door lock mechanism via a latch mounting bolt; a horizontally arranged rotating plate is hingedly connected to the latch; a rotating block E is hingedly connected to the other end of the rotating plate.
[0007] The front end of the pull rod A is connected to the lock cylinder paddle, and the end of the pull rod A is connected to the rotating block D on the inner lock handle; the front end of the pull rod B is connected to the vehicle door lock mechanism, and the end of the pull rod B is connected to the rotating block B on the inner lock handle; the front end of the pull rod C is connected to the rotating block C on the inner lock handle, and its end is connected to the rotating block E set on the lock.
[0008] A rotating block A is hinged on the lock core paddle; a concave groove is provided on the rotating block A, and the front end of the pull rod A is inserted into the concave groove and connected to the pull rod A.
[0009] The input end of the locking device is connected to the central control box through an electrical signal.
[0010] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a novel structure and a reasonable layout. Through the linkage of the outer lock core, pull rod A, inner lock handle, pull rod B, locker, pull rod C and controller in the door lock linkage components, the internal door locking function is added. After the car door is closed, the car can be locked and unlocked by using a remote control key, and can also be locked and unlocked by rotating the outer lock core by a mechanical key outside the passenger compartment. The car can also be locked and unlocked by moving the inner lock handle up and down inside the passenger compartment, and the car will be automatically locked when the driving speed reaches 20km / h, avoiding driving safety hazards caused by misoperation. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the present invention.
[0012] Figure 2 This is a schematic diagram of the assembly of the left door assembly in the present invention.
[0013] Figure 3 This is an exploded view of the exterior door handle structure of the present invention.
[0014] Figure 4 It is a schematic diagram of the structure of the door lock linkage component in the present invention.
[0015] Figure 5 for Figure 3 Exploded diagram.
[0016] Figure 6 for Figure 4 Schematic diagram of the rotation block in .
[0017] In the figure: 1. Left door assembly, 2. Right door assembly, 3. External lock cylinder, 4. Locker mounting bolt, 5. Lock cylinder paddle, 6. Door bracket, 7. Pull rod A, 8. Pull rod B, 9. Door lock mechanism, 10. Locker, 11. Interior lock handle, 12. Rotating shaft screw, 13. Pull rod C, 14. Central control box, 15. Rotating block A, 16. Rotating block B, 17. Rotating block C, 18. Rotating block D, 19. Rotating block E, 20. Rotating plate, 21. PC door, 22. External door handle, 23. Lock cylinder mounting screw. DETAILED DESCRIPTION
[0018] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings.
[0019] like Figure 1-6 As shown, a door lock linkage mechanism for a front-opening door of a new energy low-speed four-wheeled vehicle includes a left door assembly 1 and a right door assembly 2 symmetrically arranged on the left and right sides and a central control box 14 connected thereto; the door panels of the left and right door assemblies are PC doors 21, and door brackets 6 and door lock linkage components are provided on their inner sides; the door brackets 6 are connected to the PC doors 21 by screws, and outer door handles 22 connected thereto by screws are provided on the outer sides of the PC doors 21; the door lock linkage component includes a door lock mechanism 9 connected to one side of the door bracket 6 by bolts; the door lock mechanism 9 includes an outer lock core 3 horizontally arranged on the end face of the outer door handle 22; a lock core paddle 5 is provided at one end of the outer lock core 3, and is connected to the door lock mechanism through a lock core mounting screw 23; a locker 4 is also provided at the lower part of the door lock mechanism 9, and the two are interconnected by a linkage portion provided therebetween.
[0020] The linkage part includes a pull rod A7, a pull rod B8, a pull rod C13, an inner locking handle 11 and a rotating shaft screw 12; the inner locking handle 11 is arranged horizontally between the door lock mechanism 9 and the locker 10, and is installed on the door bracket 6 through the rotating shaft screw 12, which can ensure that the inner locking handle swings up and down; the inner locking handle 11 is a strip handle, and a rotating block B16 and a rotating block C17 are hinged at the upper and lower parts of its front end respectively, a circular through hole is provided in the middle, and a rotating block B16 and a rotating block C17 are hinged at the rear end of the circular through hole. There is a rotating block D18; here the locker 10, the inner lock handle 11, and the shaft screw 12 are assembled on the door bracket 6, and the pull rod A7, the pull rod B8, and the pull rod C13 are assembled on the inner lock handle 11; when the external locking and unlocking functions need to be realized: the person outside the vehicle inserts the key into the outer lock cylinder 3, turns the key forward, and causes the lock cylinder paddle 5 to rotate, driving the pull rod A7, the pull rod A7 pushes the inner lock handle 11, and the inner lock handle 11 drives the pull rod B8 car door lock mechanism 9 to realize anti-locking; the reverse operation can be unlocked.
[0021] The locker 10 is installed on the door bracket 6 below the door lock mechanism 9 by means of the provided locker mounting bolts 4; a transversely arranged rotating plate 20 is hinged on the locker 10; a rotating block E19 is hinged on the other end of the rotating plate 20; the front end of the pull rod A7 is interconnected with the lock cylinder paddle 5, and the end of the pull rod A7 is connected to the rotating block D18 on the inner lock handle 11; the front end of the pull rod B8 is connected to the door lock mechanism, and the end of the pull rod B8 is connected to the rotating block B16 on the inner lock handle 11; the front end of the pull rod C13 is connected to the rotating block C17 on the inner lock handle 11, and its end is connected to the rotating block E19 provided on the locker 10; the rotating blocks B16, C17, D18 and E19 are all provided with concave grooves for connecting the pull rod A7, B8 and C13. After the above-mentioned pull rods are clamped, a complete set of linkage structure can be formed, which is convenient for the linkage of the lock body.
[0022] A rotating block A15 is hinged on the lock cylinder paddle; a concave groove is provided on the rotating block A15, and the front end of the pull rod A7 is inserted into the concave groove and connected with the groove; the input end of the locking device 10 is connected to the central control box 16 through an electrical signal; here, the vehicle speed can be set to 20km / h by setting the instrument to output a signal to the central control box 16, which can then be locked through the locking device 10 to realize the automatic locking function.
[0023] When the present invention is in use, when it is necessary to realize the external locking and unlocking functions: the person outside the vehicle inserts the key into the external lock cylinder 3, turns the key forward, and the lock cylinder paddle 5 rotates, driving the pull rod A7, the pull rod A7 pushes the internal lock handle 11, and the internal lock handle 11 drives the pull rod B8 car door lock mechanism 9 to realize the reverse locking; the reverse operation can be unlocked; when it is necessary to realize the external unlocking function: after unlocking, the person outside the vehicle can push the car door lock mechanism 9 to unlock and open the door by pressing the external lock cylinder 3; when it is necessary to realize the internal locking and unlocking functions: the internal lock handle 11 is rotated upward, which can drive the pull rod B8 pushes the door lock mechanism 9 to achieve anti-locking; the reverse operation can unlock; when the internal unlocking function needs to be realized: after unlocking, the person inside the car lifts up the unlocking handle of the door lock mechanism 9 to unlock and open the door; when the remote control anti-locking and unlocking functions need to be realized: the person outside the car presses the car lock button with the remote control key, the central control box 14 outputs a signal, which is transmitted to the locking device 10 to react, push the pull rod C13, the pull rod C13 pushes the internal lock handle 11, and the internal lock handle 11 drives the pull rod B8 to push the door lock mechanism 9 to achieve anti-locking; press the unlock button, and the locking device reverses to achieve unlocking.
[0024] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. A door lock linkage mechanism for a front-opening door of a new energy low-speed four-wheel vehicle, comprising a left door assembly (1) and a right door assembly (2) symmetrically arranged on both sides and a central control box (14) connected thereto; the characteristics of the mechanism are: The door panels of the left and right door assemblies are PC doors (21), and are provided with door brackets (6) and door lock linkage components on their inner sides; the door brackets (6) are connected to the PC door (21) by screws, and are provided with door outer handles (22) connected to the PC door (21) by screws on their outer sides; the door lock linkage components include a door lock mechanism (9) connected to one side of the door bracket (6) by bolts; the door lock mechanism (9) includes an outer lock core (3) horizontally arranged on the end face of the door outer handle (22); a lock core paddle (5) is passed through one end of the outer lock core (3), and is connected to the door lock mechanism (9) by a lock core mounting screw (23); a locker (10) is also provided at the lower part of the door lock mechanism (9), and is interconnected by a linkage portion arranged between the two.
2. The door lock linkage mechanism for the front door of a new energy low-speed four-wheel vehicle according to claim 1 is characterized by: The linkage part includes a pull rod A (7), a pull rod B (8), a pull rod C (13), an inner locking handle (11) and a rotating shaft bolt (12); the inner locking handle (11) is arranged horizontally between the vehicle door lock mechanism (9) and the locker (10), and is installed on the vehicle door bracket (6) through the rotating shaft bolt (12); the inner locking handle (11) is a strip-shaped handle, and a rotating block B (16) and a rotating block C (17) are hinged at the upper and lower parts of its front end respectively, a circular through hole is provided in the middle thereof, and a rotating block D (18) is hinged at the rear end of the circular through hole.
3. The door lock linkage mechanism for the front door of a new energy low-speed four-wheel vehicle according to claim 1 is characterized by: The locker (10) is mounted on a door bracket (6) below the door lock mechanism (9) via a locker mounting bolt (4); a horizontally arranged rotating plate (20) is hingedly connected to the locker (10); and a rotating block E (19) is hingedly connected to the other end of the rotating plate (20).
4. The door lock linkage mechanism for the front door of a new energy low-speed four-wheel vehicle according to claim 2 is characterized by: The front end of the pull rod A (7) is connected to the lock core paddle (5), and the end of the pull rod A (7) is connected to the rotating block D (18) on the inner lock handle (11); the front end of the pull rod B (8) is connected to the vehicle door lock mechanism (9), and the end of the pull rod B (8) is connected to the rotating block B (16) on the inner lock handle (11); the front end of the pull rod C (13) is connected to the rotating block C (17) on the inner lock handle (11), and the end thereof is connected to the rotating block E (19) provided on the locker (10).
5. The door lock linkage mechanism for the front door of a new energy low-speed four-wheel vehicle according to claim 1 is characterized by: A rotating block A (15) is hinged on the lock core paddle (5); a concave groove is provided on the rotating block A (15), and the front end of the pull rod A (7) is inserted into the concave groove and connected to the pull rod A (7).
6. The door lock linkage mechanism for the front door of a new energy low-speed four-wheel vehicle according to claim 1 is characterized by: The input end of the locking device (10) is connected to the central control box (14) via an electrical signal.