Be used for chair lock behind the seat of commercial vehicle
Technical field
The utility model relates to chair lock behind a kind of seat that is used for commercial vehicle, and it belongs to the automotive upholstery field.
Background technology
In the prior art, be used for the back seat of commercial vehicle, generally do not have chair lock, minority back seat that the chair lock is set, also only be provided with a latch hook, fragile during use, and poor sensitivity, cause the accident easily.
Summary of the invention
Technical problem to be solved in the utility model is to overcome existing above-mentioned deficiency in the prior art, and chair was locked after the good seat that is used for commercial vehicle of a kind of sensitivity was provided.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the chair lock comprised handle after this was used for the seat of commercial vehicle, latch hook, locked groove, lock hook shaft, shell, spring, open keyhole and lever pin, handle is inserted in the spring and with shell to be fixed, lock hook shaft is inserted in the latch hook and with shell to be fixed, locked groove is opened on handle, this locked groove cooperates with latch hook, lever pin is connected with handle, it is characterized in that: also be provided with unlock plate and unlock plate axle, this unlock plate axle sleeve goes in the unlock plate and with described shell to fix, unlock plate cooperates with described latch hook, and between handle and shell, sensitivity is higher during use.
The utility model compared with prior art has following positive effect: reasonable in design, owing to be provided with unlock plate and unlock plate axle, form double-lock structure, and not fragile during use, and sensitivity is good, is difficult for causing the accident.
Description of drawings
Fig. 1 looks scheme drawing for master of the present utility model.
Fig. 2 is a schematic top plan view of the present utility model.
The specific embodiment
Referring to Fig. 1-Fig. 2, present embodiment mainly comprises handle 1, latch hook 2, unlock plate 3, locked groove 4, unlock plate axle 5, lock hook shaft 6, shell 7, spring 8, open keyhole 9 and lever pin 10; Handle 1 is inserted in the spring 8 and with shell 7 to be fixed, and handle 1 is movable; Lock hook shaft 6 is inserted in the latch hook 2 and with shell 7 to be fixed, and latch hook 2 can rotate; Locked groove 4 is opened on handle 1, and this locked groove 4 cooperates with latch hook 2; Lever pin 10 is inserted in the open keyhole 9, and is connected with handle 1; Unlock plate axle 5 is inserted in the unlock plate 3 and with described shell 7 to be fixed, and unlock plate 3 cooperates with latch hook 2, and unlock plate 3 and latch hook 2 are all between handle 1 and shell 7.
During use, pulling handle 1 drives spring 8, and unlock plate 3 and latch hook 2 are rotated, and this moment, unlock plate 3 and latch hook 2 coincide with locked groove 4, unblanked; Decontrol handle 1, under the effect of spring 8, reset and rebound, be to pin automatically this moment.During practical application, the design one ruler cun round steel littler than the notch of locked groove 4 under chair behind the automobile sticks into automatically and gets final product.