CN219492019U

CN219492019U - Back door locking mechanism of dump truck

Info

Publication number: CN219492019U
Application number: CN202320106725.3U
Authority: CN
Inventors: 孙毅; 张攀; 张琳
Original assignee: Laohekou Jinlin Auto Parts Manufacturing Co ltd
Current assignee: Laohekou Jinlin Auto Parts Manufacturing Co ltd
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-08-08
Anticipated expiration: 2033-02-03

Abstract

The utility model discloses a rear door locking mechanism of a dump truck, which comprises the dump truck and a rear door, wherein the dump truck and the rear door are rotationally connected, locking steel shafts are welded at the lower ends of two sides of the rear door, rotating blocks are rotationally arranged at the front ends of two sides of the dump truck through rotating shafts, the rear door locking mechanism also comprises locking clamping blocks which are arranged above the locking steel shafts, transmission cavities are respectively formed in the front sides of the lower ends of the inner parts of the locking clamping blocks, double-thread transmission rods are rotationally arranged at the upper ends of the inner parts of the transmission cavities, and rotating rods are welded at one ends of the double-thread transmission rods. This tipper back door locking mechanism runs through spacing section of thick bamboo and under reset spring's elasticity extrusion through the gag lever post, can carry out axial spacing to the revolute block, makes the lock revolute block unable rotation to avoided the vibration to lead to breaking away from of locking fixture block, made the back door safer after locking, avoided the potential safety hazard that locking fixture block breaks away from to produce.

Description

Back door locking mechanism of dump truck

Technical Field

The utility model relates to the technical field of dumpers, in particular to a dumper rear door locking mechanism.

Background

The self-unloading truck is a vehicle capable of unloading goods by hydraulic or mechanical lifting, and is also called a dump truck, and is composed of an automobile chassis, a hydraulic lifting mechanism, a cargo box, a power taking device and other parts, wherein the carriage of the self-unloading truck is in backward tilting and lateral tilting, a piston rod is controlled to move through an operating system, the backward tilting is common, the piston rod is pushed to tilt the carriage, and a small number of locking mechanisms of a rear door of the self-unloading truck are used for fixing the rear door.

The existing dumper rear door locking mechanism realizes automatic locking through mechanical locking equipment below a rear door, and meanwhile, in order to ensure the reinforced locking of the rear door, reinforcing hooks are arranged on two sides of the rear door to further improve the locking capacity of the rear door, but the existing reinforcing hooks mostly directly rotate to corresponding positions on the rear door to be clamped, vibration is easy to generate if the dumper runs, the reinforcing hooks easily have potential safety hazards of unhooking due to the generation of vibration, the daily use is not facilitated, and therefore the existing requirements are not met, and the dumper rear door locking mechanism is provided.

Disclosure of Invention

The utility model aims to provide a rear door locking mechanism of a dump truck, which aims to solve the problem that the side reinforcing hooks of the locking mechanism provided in the background art have potential safety hazards of unhooking due to the running vibration of the dump truck.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the rear door locking mechanism of the dump truck comprises the dump truck and a rear door, wherein the dump truck and the rear door are rotationally connected, locking steel shafts are welded at the lower ends of the two sides of the rear door, and rotating blocks are rotationally arranged at the front ends of the two sides of the dump truck through rotating shafts;

the locking device comprises a locking steel shaft, and is characterized by further comprising a locking clamping block, wherein the locking clamping block is arranged above the locking steel shaft, the front side of the lower end of the inner part of the locking clamping block is provided with a transmission cavity, the upper end of the inner part of the transmission cavity is provided with a double-thread transmission rod in a rotating mode, one end of the double-thread transmission rod is welded with a rotating rod, one end of the rotating rod penetrates through and extends to the outer part of the transmission cavity, the rotating rod is rotationally connected with the transmission cavity, the outer parts of the two ends of the double-thread transmission rod are connected with a movable plate in a threaded mode, the lower end of the inner side of the movable plate is welded with a limiting clamping block, the limiting clamping block penetrates through and extends to the outer part of the transmission cavity, and the limiting clamping block is in sliding fit with the transmission cavity;

still including the mounting box, it sets up the rear end of rotating block, and every side all is provided with two, the inside of mounting box all slides and is provided with the slider, the inside intermediate position department of slider all runs through and is provided with the gag lever post, and the gag lever post all with slider fixed connection, the both ends of gag lever post all run through and extend to the outside of mounting box.

Preferably, the outside that the gag lever post is located the inside one end of mounting box all overlaps and is equipped with reset spring, and reset spring's one end all is connected with the slider.

Preferably, the rear of the rotating block is provided with a connecting pull plate, and the connecting pull plate and one end of the limiting rod, which is positioned outside the mounting box, are welded and fixed.

Preferably, sliding rails are arranged on two sides of the lower end inside the transmission cavity, and the sliding rails are in sliding fit with the movable plate.

Preferably, the rear side of locking fixture block lower extreme is provided with the bottom closing piece through the pivot rotation, the draw-in groove has all been seted up to the front end of bottom closing piece both sides, and the draw-in groove all is located the outside one end looks adaptation of transmission chamber with spacing fixture block.

Preferably, the rear sides of the upper end and the lower end of the rotating block are welded with limiting cylinders, one of the limiting rods is located at one end outside the mounting box and penetrates through the limiting cylinders, and the limiting rods are in sliding fit with the limiting cylinders.

Preferably, the one end that the bull stick is located the transmission chamber outside has all welded the antiskid piece, and the antiskid stripe that a plurality of annular equidistance was distributed has all been seted up to the outer wall of antiskid piece.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the limiting cylinder is arranged above and below one side of the rotating block, and when the reset spring in the mounting box drives the limiting rod to penetrate through the limiting cylinder, the rotating block is axially limited, so that the rotating block cannot rotate, the locking clamping block is prevented from being separated due to vibration, the rear door is safer after being locked, and the potential safety hazard of the locking clamping block separation is avoided.

2. According to the utility model, the transmission cavity is formed in the front side of the lower end of the inner part of the locking clamping block, and the moving plate can drive the limiting clamping block to enter the clamping groove by rotating the double-thread transmission rod so as to clamp and fix the bottom sealing block, so that the locking clamping block and the bottom sealing block can firmly fix the locking steel shaft, the connection firmness of the locking clamping block and the locking steel shaft is further improved, and the locking clamping block is prevented from being separated due to vibration.

3. According to the utility model, the connecting pulling plate is arranged on one side of the mounting box, so that one side of the two limiting rods can be synchronous only by pulling the connecting pulling plate in daily use, and the limiting rods are not required to be pulled repeatedly, so that the use is more convenient and faster.

Drawings

FIG. 1 is a front view of the internal structure of the present utility model;

FIG. 2 is a side view of the internal structure of the present utility model;

FIG. 3 is an enlarged view of a portion of the area A of FIG. 2 in accordance with the present utility model;

fig. 4 is an enlarged view of a portion of the area B of fig. 1 in accordance with the present utility model.

In the figure: 1. a dump truck; 2. a rear door; 3. locking the steel shaft; 4. locking the clamping block; 5. a rotating block; 6. a limiting cylinder; 7. a limit rod; 8. a mounting box; 9. a return spring; 10. a slide block; 11. a connecting pulling plate; 12. a bottom block; 13. a transmission cavity; 14. a double-thread transmission rod; 15. a moving plate; 16. a rotating rod; 17. an anti-slip rotating block; 18. a slide rail; 19. a clamping groove; 20. and a limiting clamping block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the rear door locking mechanism of the dump truck comprises a dump truck 1 and a rear door 2, wherein the dump truck 1 and the rear door 2 are rotationally connected, locking steel shafts 3 are welded at the lower ends of two sides of the rear door 2, and rotating blocks 5 are rotationally arranged at the front ends of two sides of the dump truck 1 through rotating shafts;

the locking device further comprises a locking clamping block 4 which is arranged above the locking steel shaft 3, wherein a transmission cavity 13 is formed in the front side of the lower end of the inner part of the locking clamping block 4, a double-thread transmission rod 14 is arranged at the upper end of the inner part of the transmission cavity 13 in a rotating mode, a rotating rod 16 is welded at one end of the double-thread transmission rod 14, one end of the rotating rod 16 penetrates through and extends to the outer part of the transmission cavity 13, the rotating rod 16 is rotationally connected with the transmission cavity 13, moving plates 15 are connected at the outer parts of the two ends of the double-thread transmission rod 14 in a threaded mode, limit clamping blocks 20 are welded at the lower ends of the inner sides of the moving plates 15, the limit clamping blocks 20 penetrate through and extend to the outer part of the transmission cavity 13, and the limit clamping blocks 20 are in sliding fit with the transmission cavity 13;

still include mounting box 8, it sets up the rear end at rotatory piece 5, and every side all is provided with two, and the inside of mounting box 8 all slides and is provided with slider 10, and the inside intermediate position department of slider 10 all runs through and is provided with gag lever post 7, and gag lever post 7 all with slider 10 fixed connection, the both ends of gag lever post 7 all run through and extend to the outside of mounting box 8.

During the use, extrude slider 10 through reset spring 9's elastic action to can make gag lever post 7 run through spacing section of thick bamboo 6 through slider 10, and then produce the spacing effect of axial to rotating block 5, make rotating block 5 unable drive locking fixture block 4 and rotate, thereby avoided the vibration to lead to the breaking away from of locking fixture block 4, make the security after the back door 2 locks more, avoid the potential safety hazard that locking fixture block 4 breaks away from to produce.

Referring to fig. 4, the outside of the end of the limit rod 7 inside the mounting box 8 is sleeved with a return spring 9, one end of the return spring 9 is connected with a sliding block 10, and the return spring 9 can squeeze the sliding block 10 through the elastic action of the return spring 9, so that the limit rod 7 is driven to penetrate through the limit cylinder 6 through the sliding block 10;

referring to fig. 2, a connecting pull plate 11 is arranged at the rear of the rotating block 5, and the connecting pull plate 11 is welded and fixed with one end of the limiting rod 7 outside the mounting box 8, and the two limiting rods 7 can be pulled to move once through the connecting pull plate 11, so that the limiting rods 7 do not need to be pulled repeatedly, and daily use is facilitated;

referring to fig. 3, sliding rails 18 are provided at two sides of the lower end of the inner portion of the transmission cavity 13, and the sliding rails 18 are slidably matched with the moving plate 15, and the moving plate 15 slides in the sliding rails 18 to be axially limited, so that the rotation of the moving plate is converted into horizontal linear movement, and the limiting clamping block 20 is driven to move;

referring to fig. 2 and 3, the rear side of the lower end of the locking fixture block 4 is rotatably provided with a bottom sealing block 12 through a rotating shaft, the front ends of two sides of the bottom sealing block 12 are provided with clamping grooves 19, the clamping grooves 19 are matched with one end of a limit fixture block 20 positioned outside a transmission cavity 13, and when the clamping grooves 19 are clamped into the limit fixture block 20, the bottom sealing block 12 is clamped and fixed, so that the locking fixture block 4 is closed with the bottom sealing block 12, the connection firmness of the locking fixture block 4 and a locking steel shaft 3 is improved, and the locking fixture block 4 is prevented from being separated due to vibration;

referring to fig. 2, the rear sides of the upper and lower ends of the rotating block 5 are welded with a limiting cylinder 6, one end of a limiting rod 7 positioned outside the mounting box 8 penetrates through the limiting cylinder 6, the limiting rod 7 is in sliding fit with the limiting cylinder 6, and when the limiting rod 7 penetrates through the limiting cylinder 6, an axial limiting effect is achieved on the rotating block 5, so that the locking clamping block 4 cannot rotate, and the locking clamping block 4 is prevented from being separated due to vibration;

referring to fig. 2 and 3, one end of the rotating rod 16 outside the transmission cavity 13 is welded with an anti-slip block 17, and the outer wall of the anti-slip block 17 is provided with a plurality of annular equally-spaced anti-slip stripes, so that slipping of the rotating rod 16 can be avoided by arranging the anti-slip block 17, and the rotating rod 16 can be conveniently rotated.

Working principle: during the use, when the back door 2 of tipper 1 is closed, rotate rotary block 5 through the pivot, make the locking fixture block 4 of rotary block 5 one end block locking steel shaft 3, rethread pivot upwards rotate bottom closing part 12, handheld antiskid rotary block 17 rotates this moment, antiskid rotary block 17 can drive the synchronous rotation of bull stick 16 messenger double screw thread transfer line 14, double screw thread transfer line 14 rotates and can drive the synchronous rotation of two movable plates 15, because the one end of movable plate 15 all slides in slide rail 18, so movable plate 15 can receive axial spacing, the rotation of two movable plates 15 can be converted into opposite or opposite horizontal rectilinear movement, through the relative removal of two movable plates 15, can drive spacing fixture block 20 card income draw-in groove 19, thereby carry out the centre gripping fixed to pivoted bottom closing part 12, can firmly fix locking steel shaft 3 through locking fixture block 4 and locking steel shaft 3, the connection fastness of 3 has been improved locking fixture block 4, the vibration has avoided the vibration to lead to locking fixture block 4 break away from, when 1 driving the in-process produces the slider, because the one end of movable plate 15 all slides in slide rail 18, so movable plate 15 can receive axial spacing, can be changed into opposite horizontal rectilinear movement through the rotation of two movable plates 15, can drive the axial direction of rotation 5 through the movable block 10, can drive the rotation 5, can drive the effect of the stop block 5 and can be rotated by the 5, thereby can not take out the effect of the rotation 5 through the rotation of the limit cylinder is realized, can be realized, and can drive the rotation 5, can be rotated by the 5 through the rotation and can be rotated by the 5, can be rotated by the effect can be rotated by the 5, and can be rotated by the limit stop 7.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a tipper back door locking mechanism, includes tipper (1) and back door (2), rotate between tipper (1) and back door (2) and be connected, the lower extreme welding of back door (2) both sides has locking steel shaft (3), the front end of tipper (1) both sides is provided with turning block (5) through the pivot rotation, its characterized in that:

the locking device comprises a locking steel shaft (3), and is characterized by further comprising a locking clamping block (4), wherein the locking steel shaft is arranged above the locking steel shaft (3), a transmission cavity (13) is formed in the front side of the lower end inside the locking clamping block (4), a double-thread transmission rod (14) is arranged at the upper end inside the transmission cavity (13) in a rotating mode, a rotating rod (16) is welded at one end of the double-thread transmission rod (14), one end of the rotating rod (16) penetrates through and extends to the outer part of the transmission cavity (13), the rotating rod (16) is rotationally connected with the transmission cavity (13), a movable plate (15) is connected to the outer parts of the two ends of the double-thread transmission rod (14) in a threaded mode, a limiting clamping block (20) is welded at the lower end inside the movable plate (15), the limiting clamping block (20) penetrates through and extends to the outer part of the transmission cavity (13), and the limiting clamping block (20) is in sliding fit with the transmission cavity (13).

Still including mounting box (8), it sets up the rear end of rotating block (5), and every side all is provided with two, the inside of mounting box (8) all slides and is provided with slider (10), the inside intermediate position department of slider (10) all runs through and is provided with gag lever post (7), and gag lever post (7) all with slider (10) fixed connection, the both ends of gag lever post (7) all run through and extend to the outside of mounting box (8).

2. The rear door locking mechanism of a dump truck according to claim 1, wherein: the outside that gag lever post (7) is located inside one end of mounting box (8) all overlaps and is equipped with reset spring (9), and the one end of reset spring (9) all is connected with slider (10).

3. The rear door locking mechanism of a dump truck according to claim 1, wherein: the rear of the rotating block (5) is provided with a connecting pull plate (11), and the connecting pull plate (11) and one end of the limiting rod (7) positioned outside the mounting box (8) are welded and fixed.

4. The rear door locking mechanism of a dump truck according to claim 1, wherein: slide rails (18) are arranged on two sides of the lower end inside the transmission cavity (13), and the slide rails (18) are in sliding fit with the movable plate (15).

5. The rear door locking mechanism of a dump truck according to claim 1, wherein: the rear side of locking fixture block (4) lower extreme is provided with bottom sealing block (12) through the pivot rotation, draw-in groove (19) have all been seted up to the front end of bottom sealing block (12) both sides, and draw-in groove (19) all are located the outside one end looks adaptation of transmission chamber (13) with spacing fixture block (20).

6. The rear door locking mechanism of a dump truck according to claim 1, wherein: the rear sides of the upper end and the lower end of the rotating block (5) are welded with limiting cylinders (6), one end of the limiting rod (7) located outside the mounting box (8) penetrates through the limiting cylinders (6), and the limiting rod (7) is in sliding fit with the limiting cylinders (6).

7. The rear door locking mechanism of a dump truck according to claim 1, wherein: one end of the rotating rod (16) positioned outside the transmission cavity (13) is welded with an anti-slip rotating block (17), and the outer wall of the anti-slip rotating block (17) is provided with a plurality of annular equidistant anti-slip stripes.