Unlocking structure for vehicle rear-row seat armrest
By designing a simple unlocking structure for rear seat armrests of vehicles, the problems of complex structure and high production costs of existing locks are solved, achieving higher safety and lower manufacturing costs.
Patent Information
- Application Number
- CN202422591733.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-10-25
AI Technical Summary
The locks of the rear seat armrests of existing vehicles are complex in structure, high in production costs, and difficult to install and repair, which is difficult to promote.
A simple structure unlocking structure is designed, including the handrail body, the unlocking handle, the zipper assembly and the locking pin assembly. The locking and unlocking of the handrail is achieved by rotating the unlocking handle.
The handrail unlocking structure with simple structure, low production cost and low installation and maintenance difficulty is realized, which improves the safety of the occupants and reduces the manufacturing cost.
Smart Images
Figure CN223045590U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of seats, and particularly relates to an unlocking structure for the armrest of a vehicle rear seat. Background Art
[0002] At present, most of the large armrests in the middle of the two rear seats do not have locks. Even if there are locks on the armrests of individual seats, the locks and their unlocking mechanisms are relatively complex, with high production costs, great difficulties in installation and maintenance, and it is difficult to promote in the market. Summary of the Invention
[0003] The purpose of the utility model is to provide an unlocking structure for the armrest assembly of a vehicle rear seat, which has a simple structure, is labor-saving and has low production costs.
[0004] The purpose of the utility model is solved as follows:
[0005] An unlocking structure for the armrest of a vehicle rear seat includes an armrest main body. A handle installation groove is arranged at the upper part of the armrest main body. An unlocking handle and a zip fastener assembly controlled by the unlocking handle are installed in the installation groove. A lock pin installation part is arranged at the lower part of the armrest main body. A lock pin assembly is installed in the lock pin installation part. The zip fastener assembly controls the lock pins of the lock pin assembly to extend or retract synchronously in both directions on both sides of the armrest main body. The rotation of the unlocking handle can drive the extension or retraction of the lock pins.
[0006] As a further optimization of the above technical solution, the lock pin assembly includes an installation channel penetrating through the lock pin installation part and operation holes symmetrically arranged on the side walls of the installation channel. A left lock pin and a right lock pin are installed in the installation channel. A spring for driving the left lock pin and the right lock pin to move away from each other is arranged between the left lock pin and the right lock pin. The left lock pin and the right lock pin are respectively provided with operating rods extending out of the operation holes, and the operating rods are both connected to the zip fastener.
[0007] As a further optimization of the above technical solution, a guide rod or a guide groove is arranged on one side of the left lock pin opposite to the right lock pin, and a guide groove or a guide rod matched with the guide rod or the guide groove is arranged on one side of the right lock pin opposite to the left lock pin, and the guide rod is inserted into the guide groove.
[0008] As a further optimization of the above technical solution, bolt holes are arranged on both the left lock pin and the right lock pin, and the operating rods are screwed into the bolt holes.
[0009] As a further optimization of the above technical solution, the operating rod is a stepped bolt.
[0010] As a further optimization of the above technical solution, a bushing is sleeved on the stepped bolt.
[0011] As a further optimization of the above technical solution, the zipper assembly includes a main zipper connected to the unlocking handle, and the other end of the main zipper is fixedly connected to two sub-zippers, and the two sub-zippers are respectively fixedly connected to the operating rods on the left locking pin and the right locking pin.
[0012] As a further optimization of the above technical solution, bushings are mounted on the left locking pin and the right locking pin.
[0013] As a further optimization of the above technical solution, the bushings mounted on the left locking pin and the right locking pin are open bushings with axial openings arranged on the side walls.
[0014] As a further optimization of the above technical solution, sheet metal brackets are respectively fixed to the frames on both sides of the armrest body, and the sheet metal brackets are provided with locking grooves through which the locking pin can extend or retract.
[0015] The use of the utility model is as follows: the lower part of the armrest body is hinged on the seat frame, the unlocking handle is pulled to rotate, and the operating rods (step bolts) on both sides are pulled toward the middle by the cable, and the operating rod drives the locking pin to retract toward the middle until it is out of the locking groove, thereby achieving the unlocking effect and the armrest can be put down; after the armrest is put on the stage and rotated to restore, the unlocking handle is released, and under the action of the spring, the locking pins on both sides are prompted to extend outwards and be inserted into the locking grooves on both sides, thereby achieving the locking effect.
[0016] The outstanding advantages of the utility model compared with the prior art are:
[0017] 1. The space of the unlocking handle installation slot of the utility model is sufficient, which is convenient for applying the unlocking force; the tension loss applied to the cable is relatively small, which can better transmit the unlocking force.
[0018] 2. The step bolt and lock pin linkage structure of the utility model can not only better transmit the unlocking force, but also ensure its own strength in the locked state, which not only improves the safety of the occupants, but also ensures that unlocking is easier and more convenient.
[0019] 3. Compared with other similar products on the market, the utility model has a relatively simple structure, a relatively small tension loss of the cable assembly, and significantly improved manufacturing difficulty, while meeting the strength requirements of the handrail, which can effectively reduce manufacturing costs.
[0020] 4. The utility model is suitable for the lower lock arranged on the seat armrest. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a three-dimensional schematic diagram of the utility model.
[0022] Figure 2It is a three-dimensional schematic diagram of the cooperation among the zip fastener assembly, the lock pin assembly and the sheet metal bracket of the present utility model.
[0023] Figure 3 It is a cross-sectional schematic diagram of the lock pin of the lock pin assembly of the present utility model in the unlocked state.
[0024] Figure 4 It is a cross-sectional schematic diagram of the lock pin of the lock pin assembly of the present utility model in the locked state. Detailed implementation manners
[0025] The following further describes the present utility model with specific embodiments in conjunction with the accompanying drawings. See Figures 1 - 4 :
[0026] An unlocking structure for a rear seat armrest of a vehicle includes an armrest main body 10 hinged to a sheet metal bracket 13 of a seat frame 12 through a rotating shaft 14 inserted into a shaft hole 15 on the sheet metal bracket 13 at the lower part. A handle installation groove 11 is provided at the upper part of the armrest main body 10. An unlocking handle 21 and a zip fastener assembly 20 controlled by the unlocking handle 21 are installed in the installation groove 11. A lock pin installation part 40 is provided at the lower part of the armrest main body 10 on one side of the rotating shaft 14. A lock pin assembly that is controlled by the zip fastener assembly 20 to extend or retract synchronously in both sides of the armrest main body 10 is installed in the lock pin installation part 40. A lock groove 16 that can extend or retract the lock pin 23 is provided on the corresponding frame 12 of the lock pin 23 of the lock pin assembly. The rotation of the unlocking handle 21 can drive the lock pin 23 to extend or retract into the lock groove 16 to lock or unlock the rear seat armrest of the seat.
[0027] As a further optimization of the above technical solution, the lock pin assembly includes a through installation channel 41 provided in the lock pin installation part 40 and operation holes 42 symmetrically provided on the side walls of the installation channel 41. A left lock pin 28 and a right lock pin 32 are installed in the installation channel 41. A spring 29 that drives the left lock pin 28 and the right lock pin 32 to move away from each other is provided between the left lock pin 28 and the right lock pin 32. The left lock pin 28 and the right lock pin 32 are respectively provided with operation rods 33 extending out of the operation holes 42, and the operation rods 33 are both connected to the zip fastener 20.
[0028] As a further optimization of the above technical solution, a guide rod 30 or a guide groove 31 is provided on one side of the left lock pin 28 opposite to the right lock pin 32. A guide groove 31 or a guide rod 30 that cooperates with the guide rod 30 or the guide groove 31 is provided on one side of the right lock pin 32 opposite to the left lock pin 28. The guide rod 30 is inserted into the guide groove 31, and the spring 29 is sleeved on the guide rod 30.
[0029] As a further optimization of the above technical solution, bolt holes 43 are provided on both the left locking pin 28 and the right locking pin 32, and the operating rod 33 is screwed into the bolt holes 43.
[0030] As a further optimization of the above technical solution, the operating rod 33 is a stepped bolt.
[0031] As a further optimization of the above technical solution, a bushing 26 is sleeved on the stepped bolt.
[0032] As a further optimization of the above technical solution, the zip-lock assembly 20 includes a main zip-lock 22 connected to the unlocking handle 21. The other end of the main zip-lock 22 is fixedly connected with two sub-zip-locks 24, and the two sub-zip-locks 24 are respectively fixedly connected to the operating rods 33 on the left locking pin 28 and the right locking pin 32.
[0033] As a further optimization of the above technical solution, bushings 27 are sleeved on the left locking pin 28 and the right locking pin 32.
[0034] As a further optimization of the above technical solution, the bushings 27 sleeved on the left locking pin 28 and the right locking pin 32 are split bushings with axial openings provided on the side walls.
[0035] As a further optimization of the above technical solution, sheet metal brackets 13 are respectively fixed on the frames 12 on both sides of the armrest main body 10, and the lock grooves 16 are provided on the sheet metal brackets 13.
[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still make simple substitutions or modifications to the technical solutions or technical features described in the foregoing embodiments with similar technologies, and these simple substitutions or modifications do not make the essence of the corresponding technical solutions deviate from the spirit and essence of the technical solutions of the embodiments of the present invention, and are still within the protection scope of the present invention.
Claims
1. An unlocking structure for a rear seat armrest of a vehicle, comprising an armrest body, characterized in that: The upper part of the armrest body is provided with a handle mounting groove, an unlocking handle and a zipper assembly controlled by the unlocking handle are installed in the mounting groove, and a lock pin mounting part is provided at the lower part of the armrest body, and a lock pin assembly is installed in the lock pin mounting part, and the zipper assembly controls the lock pin of the lock pin assembly to extend or retract synchronously in both directions to the two sides of the armrest body, and the rotation of the unlocking handle can drive the lock pin to extend or retract; the lock pin assembly includes a mounting channel arranged in the lock pin mounting part and a through operating hole symmetrically arranged on the side wall of the mounting channel; a left lock pin and a right lock pin are installed in the mounting channel, a spring is arranged between the left lock pin and the right lock pin to drive the left lock pin to move relatively away from the right lock pin, and the left lock pin and the right lock pin are respectively provided with operating rods extending from the operating holes, and the operating rods are connected to the zipper; sheet metal brackets are respectively fixed to the frames on both sides of the armrest body, and the sheet metal brackets are provided with lock grooves in which the lock pin can extend or retract.
2. The unlocking structure for a rear seat armrest of a vehicle according to claim 1, characterized in that: A guide rod or a guide groove is arranged on the side of the left lock pin opposite to the right lock pin, and a guide groove or a guide rod matching with the guide rod or the guide groove is arranged on the side of the right lock pin opposite to the left lock pin, and the guide rod is inserted into the guide groove.
3. The unlocking structure for a rear seat armrest of a vehicle according to claim 1, characterized in that: The left locking pin and the right locking pin are both provided with bolt holes, and the operating rod is screwed in the bolt holes.
4. The unlocking structure for a rear seat armrest of a vehicle according to claim 3, characterized in that: The operating rod is a step bolt.
5. The unlocking structure for a rear seat armrest of a vehicle according to claim 4, characterized in that: A bushing is sleeved on the step bolt.
6. The unlocking structure for a rear seat armrest of a vehicle according to claim 1, characterized in that: The zipper assembly comprises a main zipper connected to the unlocking handle, the other end of the main zipper is fixedly connected to two sub-zippers, and the two sub-zippers are respectively fixedly connected to the operating rods on the left locking pin and the right locking pin.
7. The unlocking structure for a rear seat armrest of a vehicle according to claim 1, characterized in that: The left lock pin and the right lock pin are sleeved with bushings.
8. The unlocking structure for a rear seat armrest of a vehicle according to claim 7, characterized in that: The bushings mounted on the left locking pin and the right locking pin are open bushings with axial openings arranged on the side walls.