CN215255393U

CN215255393U - Garbage truck tail-door locking device

Info

Publication number: CN215255393U
Application number: CN202120559505.7U
Authority: CN
Inventors: 谭春林
Original assignee: Ningxia Wanxing Force Car Manufacturing Co ltd
Current assignee: Ningxia Wanxing Force Car Manufacturing Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-12-21
Anticipated expiration: 2031-03-18

Abstract

The utility model relates to the technical field of garbage trucks; garbage truck tail-gate blocking device includes: the device comprises a tank body, a tail gate, a lock hook limiting frame, a lock column and a telescopic power device; the tail gate is hinged on the tank body to form a lifting tail gate structure, the lock hook consists of a rod part and a hook part arranged at one end of the rod part, one side, away from the hook part, of the rod part is hinged with the side surface of the tank body, a lock hook limiting frame is fixedly arranged on the side surface of the tank body, the middle section of the lock hook penetrates through the lock hook limiting frame to realize the limiting of hinged swinging, the lock column is fixedly arranged on the side surface of the tail gate, when the tail gate is closed, the lock column is positioned at the upper part of a working area of the hook part of the lock hook, and the working surface of the hook part faces the lock column; the utility model discloses a latch hook, spacing, lock post of latch hook and flexible power device's structural design use the shutting that realizes the tail-gate simultaneously with the operation of lifting of same set of power device, and what simultaneously can be convenient when this power supply became invalid carries out the liberation of tail-gate shutting, does benefit to and uses other power supplies to carry out the lifting of tail-gate and opens and the operation is repaired to the equipment maintenance.

Description

Garbage truck tail-door locking device

The technical field is as follows:

the utility model relates to a garbage truck technical field.

Background art:

the design of the lifting type hinge structure of the tail door of the garbage truck is a common design scheme of a garbage truck storage tank, and under the scheme, because the weight of the tail door is large, a power device is required to be arranged for lifting the tail door generally, and meanwhile, the closing of the tail door and a tank body has sealing requirements, so that the action of a single power device exists in the existing design, and the locking function of the tank body of the tail door and the function of lifting the tail door are completed simultaneously.

There are some functional defects in the existing design, for more traditional lift, the independent function scheme of locking action device, the power device easily appears the tail gate when losing the power supply and can't disengage with the shutting of the jar body, does not resume power device's power supply and just can't lift the problem of opening the tail gate through other modes, can cause very big obstacle when carrying out the operation of overhauing the maintenance to equipment.

The utility model has the following contents:

in view of this, it is necessary to design a garbage truck tail door locking device, which uses the same set of power device to simultaneously achieve the locking and lifting operations of the tail door, and does not lock the tail door when the power source fails, so as to facilitate the lifting and opening of the tail door by using other power sources.

Garbage truck tail-gate blocking device includes: the device comprises a tank body, a tail gate, a lock hook limiting frame, a lock column and a telescopic power device;

the tail gate is hinged on the tank body to form a lifting tail gate structure, the lock hook consists of a rod part and a hook part arranged at one end of the rod part, one side, away from the hook part, of the rod part is hinged with the side surface of the tank body, a lock hook limiting frame is fixedly arranged on the side surface of the tank body, the middle section of the lock hook penetrates through the lock hook limiting frame to realize the limiting of hinged swinging, the lock column is fixedly arranged on the side surface of the tail gate, when the tail gate is closed, the lock column is positioned at the upper part of a working area of the hook part of the lock hook, and the working surface of the hook part faces the lock column;

the upper end of the telescopic power device is hinged on the side surface of the tail door, and the hinged point is higher than the lock column; the lower end of the telescopic power device is hinged to the middle section of the rod part of the lock hook.

When the tail gate is opened, the telescopic power device extends to act, firstly, the lock hook is pushed to rotate around the hinge joint of the lock hook and the tank body, the hook part moves downwards to be separated from the lock column to realize unlocking, and then the rod part is contacted with the lock hook limiting frame, the stable support hinged to the lower end of the telescopic power device is formed by the hinge joint of the rod part and the tank body and the contact of the rod part and the lock hook limiting frame, and the lifting of the tail gate is realized in the continuous extension action process of the telescopic power device; the tail gate closing operation is that the retractable power device retracts to enable the tail gate to fall down under the self-weight action of the tail gate to be fastened with the tank body in place, then the tail gate is hinged with the retractable power device to provide support for the retractable power device, the latch hook is lifted in the continuous retracting action process of the retractable power device, and then the working surface of the hook portion is fastened with the latch post, so that the tail gate is locked.

Because the shutting action of latch hook is for upwards lifting up lock post, when flexible power device lost the power supply, the latch hook will lose its power supply that lifts up, because the dead weight effect of latch hook can move down gradually under simple vibrations operation of knocking and the lock post is detached to realize the shutting of tail-gate and disengage, later can be convenient use jack or other equipment realize the lift to the tail-gate, realize the design function.

Preferably, the number of the lock hooks, the lock hook limiting frame, the lock column and the telescopic power device is two, and the two lock hooks, the lock hook limiting frame, the lock column and the telescopic power device are symmetrically arranged on two sides of the tank body and the tail door.

Preferably, the telescopic power device is a hydraulic piston rod or a pneumatic piston rod or a linear motor; when a hydraulic piston rod or a pneumatic piston rod is adopted, a piston part of the hydraulic piston rod or the pneumatic piston rod is provided with a pressure release valve for releasing pressure when a power source is lost so that the lock hook can move downwards by means of dead weight.

Preferably, the hinge point of the lower end of the telescopic power device and the lock hook is positioned between the hinge point of the lock hook and the tank body and the lock hook limiting frame, and the lock hook limiting frame is small in stress under the structure, so that the fault rate of equipment is reduced, and the service life of the equipment is prolonged.

Furthermore, the design also comprises a locking device base, the locking hook and the locking hook limiting frame are connected and installed with the tank body through the locking device base, the locking column and the telescopic power device are connected and installed with the tail gate through the locking device base, the structural design of the tank body and the tail gate can be simplified through the structure, and the equipment cost is reduced.

The utility model discloses a latch hook, spacing, lock post of latch hook and flexible power device's structural design use the shutting that realizes the tail-gate simultaneously with the operation of lifting of same set of power device, and what simultaneously can be convenient when this power supply became invalid carries out the liberation of tail-gate shutting, does benefit to and uses other power supplies to carry out the lifting of tail-gate and opens and the operation is repaired to the equipment maintenance.

Description of the drawings:

fig. 1 is a schematic structural view of a specific embodiment of the locking device for the tail door of the garbage truck of the present invention.

In the figure, a tank body 1, a tail gate 2, a lock hook 3, a rod part 301, a hook part 302, a lock hook limiting frame 4, a lock column 5, a telescopic power device 6 and a locking device base 7.

The specific implementation mode is as follows:

2 blocking device of garbage truck tail-gate includes: the device comprises a tank body 1, a tail door 2, a latch hook 3, a latch hook limiting frame 4, a lock column 5 and a telescopic power device 6; the tail gate 2 is hinged to the tank body 1 to form a lift-type tail gate 2 structure, the lock hook 3 is composed of a rod portion 301 and a hook portion 302 arranged at one end of the rod portion 301, one side, away from the hook portion 302, of the rod portion 301 is hinged to the side face of the tank body 1, the lock hook limiting frame 4 is fixedly installed on the side face of the tank body 1, the middle section of the lock hook 3 penetrates through the lock hook limiting frame 4 to achieve hinged swing limiting, the lock column 5 is fixedly installed on the side face of the tail gate 2, when the tail gate 2 is closed, the lock column 5 is located on the upper portion of a working area of the hook portion 302 of the lock hook 3, and the working face of the hook portion 302 faces towards the lock column 5.

The upper end of the telescopic power device 6 is hinged on the side surface of the tail door 2, and the hinged point is higher than the lock column 5; the lower end of the telescopic power device 6 is hinged at the middle section of the rod part 301 of the locking hook 3.

The lock hook 3, the lock hook limiting frame 4, the lock column 5 and the telescopic power device 6 are respectively provided with two lock hooks and are symmetrically arranged on two sides of the tank body 1 and the tail door 2.

The telescopic power device 6 is a hydraulic piston rod or a pneumatic piston rod or a linear motor; when a hydraulic piston rod or a pneumatic piston rod is adopted, a piston part of the hydraulic piston rod or the pneumatic piston rod is provided with a pressure release valve for releasing pressure when a power source is lost so that the locking hook 3 can move downwards by means of dead weight.

The hinge point of the lower end of the telescopic power device 6 and the lock hook 3 is located between the hinge point of the lock hook 3 and the tank body 1 and the lock hook limiting frame 4, and the lock hook limiting frame 4 is small in stress under the structure, so that the fault rate of equipment is reduced, and the service life of the equipment is prolonged.

This design still includes blocking device base 7, and above-mentioned latch hook 3, latch hook spacing 4 are connected the installation through blocking device base 7 with jar body 1, and above-mentioned lock post 5, flexible power dress 6 are connected the installation through blocking device base 7 and tail-gate 2, and the structural design of jar body 1 and tail-gate 2 can be simplified to this structure, reduces equipment cost.

When the tail gate 2 is opened, the telescopic power device 6 extends to act, firstly, the lock hook 3 is pushed to rotate around the hinge joint of the lock hook 3 and the tank body 1, the hook part 302 moves downwards to be separated from the lock column 5 to realize the release of locking, further, the rod part 301 is contacted with the lock hook limiting frame 4, a stable support hinged to the lower end of the telescopic power device 6 is formed through the hinge joint of the rod part 301 and the tank body 1 and the contact of the rod part 301 and the lock hook limiting frame 4, and the lifting of the tail gate 2 is realized in the continuous extension action process of the telescopic power device 6; the closing operation of the tail gate 2 is that the telescopic power device 6 contracts, firstly the tail gate 2 falls down under the self-weight action of the tail gate 2 and is buckled with the tank body 1 in place, then the tail gate 2 is hinged with the telescopic power device 6 to provide support for the telescopic power device 6, the lock hook 3 is lifted in the continuous contraction process of the telescopic power device 6, and then the working surface of the hook part 302 is buckled with the lock column 5, so that the tail gate 2 is locked.

Because the shutting action of latch hook 3 is for upwards lifting lock post 5, when flexible power dress 6 lost the power supply, latch hook 3 will lose the power supply that lifts up with it, because the dead weight effect of latch hook 3 can move down gradually under simple vibrations operation and disengage with lock post 5 to realize the shutting of tail-gate 2 and disengage, later can be convenient use jack or other equipment realize the lifting to tail-gate 2, realize the design function.

Claims

1. Garbage truck tail-gate blocking device which characterized in that includes: the device comprises a tank body, a tail gate, a lock hook limiting frame, a lock column and a telescopic power device;

2. The device as claimed in claim 1, wherein the latch hook, the latch hook stopper, the latch post and the retractable power device are symmetrically disposed at two sides of the tank and the tailgate.

3. The garbage truck tailgate locking device according to claim 1, wherein the telescopic power device is a hydraulic piston rod or a pneumatic piston rod or a linear motor.

4. The garbage truck tail-door locking device according to any one of claims 1 to 3, characterized in that the hinge point of the lower end of the telescopic power device and the locking hook is located between the hinge point of the locking hook and the tank body and the locking hook limiting frame.

5. The garbage truck tail-door locking device of claim 4, further comprising a locking device base, wherein the locking hook and the locking hook limiting frame are connected and installed with the tank body through the locking device base, and the lock column and the telescopic power device are connected and installed with the tail door through the locking device base.