CN210390908U

CN210390908U - Automatic closing device for rear door of rear dump truck

Info

Publication number: CN210390908U
Application number: CN201921140974.4U
Authority: CN
Inventors: 苗生良; 董海伟; 杨樽强
Original assignee: Shandong Tianhong Automobile Technology Co Ltd
Current assignee: Shandong Tianhong Automobile Technology Co Ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-04-24
Anticipated expiration: 2029-07-19

Abstract

The utility model relates to a back door automatic closing device of tipper turns over after, including installing the supporting beam at carriage railway carriage or compartment tail, it has the back door to articulate on the supporting beam, and the both ends of supporting beam are connected with respectively with a elevating gear, and elevating gear fixes on the carriage inner wall that corresponds, and it opens and close the hydro-cylinder to articulate the back door that the control back door was opened and close on the inner wall of back door, and the other end that the hydro-cylinder was opened and close to the back door articulates on the carriage inner wall that corresponds, still includes a plurality of to looks adaptations and corresponds and sets up catch and latch hook, and the catch is fixed on the inside wall of back door, and the latch hook is fixed at carriage railway carriage or compartment tail bottom, and. The utility model discloses following beneficial effect has: improve the flexibility ratio when opening or closing the carriage back door, whole mechanized design, there is the potential safety hazard in the process of opening of user's discharge back door as far as possible, in addition, the utility model relates to a principle is reliable, and simple structure has very extensive application prospect.

Description

Automatic closing device for rear door of rear dump truck

Technical Field

The utility model relates to a back door automatic closing device of back-tipping dumper belongs to back-tipping dumper technical field.

Background

The dumper is a vehicle for automatically unloading goods by hydraulic or mechanical lifting, and is also called as a dumper, which consists of parts such as an automobile chassis, a hydraulic lifting mechanism, a cargo compartment, a power takeoff device and the like, and the dumper is often combined with engineering machinery such as an excavator, a loader, a belt conveyor and the like in civil engineering to form a loading, transporting and unloading production line for loading, transporting and unloading earthwork, gravel and bulk materials.

The form of the rear opening door locking structure in the transportation process of the dumper on the current market mainly comprises the following steps: traditional chain locking plate formula and force push-down locking mechanism, single structure, unstability can't satisfy present diversified operation requirement, has serious potential safety hazard especially under the abominable road conditions, and there is the potential safety hazard in the user discharge back door opening process.

SUMMERY OF THE UTILITY MODEL

According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: in order to solve one of the problems, the automatic rear door closing device of the rear dump truck is provided.

Automatic closing device of back door of back tipper turns over after, including installing the supporting beam at carriage railway carriage or compartment tail, it has the back door to articulate on the supporting beam, the both ends of supporting beam are connected with respectively with a elevating gear, elevating gear fixes on the carriage inner wall that corresponds, it opens and close the hydro-cylinder to articulate the back door that the control back door was opened and close on the inner wall of back door, the other end that the hydro-cylinder was opened and close to the back door articulates on the carriage inner wall that corresponds, still include a plurality of to looks adaptations and correspond and set up catch and latch hook, the catch is fixed on the inside wall of back door, the latch hook is fixed at carriage railway carriage or compartment tail bottom, the catch realizes locking or separation to the back door.

Preferably, the hinge point of the rear door opening and closing oil cylinder and the rear door is located at one end close to the supporting cross beam, and the other end of the rear door opening and closing oil cylinder is hinged to the bottom of the inner wall of the carriage. The opening and closing are more stable.

Preferably, the locking ring and the locking hook are correspondingly provided with two groups. The back door is in the closed condition, and stability is strong.

Preferably, the lifting device is a lifting oil cylinder, a cylinder body of the lifting oil cylinder is fixed on the inner wall of the carriage, and a piston rod of the lifting oil cylinder is fixedly supported at the end part of the cross beam. The degree of mechanization is higher, and is convenient for implement.

Preferably, the two ends of the supporting beam can be provided with sliding blocks, and the inner wall of the carriage is provided with sliding rails corresponding to the sliding blocks, so that the supporting beam can be lifted more stably.

Preferably, the back door opening and closing oil cylinders are arranged in two groups and symmetrically arranged on the back door. The opening and closing are more stable.

Compared with the prior art, the utility model discloses following beneficial effect has: the automatic closing device for the rear door of the rear dump truck realizes the automation of opening and closing the rear door, when the rear door needs to be opened, the lifting device and the rear door opening and closing oil cylinder slowly extend simultaneously to drive the rear door to vertically rise until the lock ring is separated from the lock hook, the rear door opening and closing oil cylinder rapidly extends, and the rear door rotates around the supporting beam to open the rear door; when the back door needs to be closed, the back door opening and closing oil cylinder is shortened quickly, the back door rotates around the supporting cross beam, the back door is closed, the lifting device and the back door opening and closing oil cylinder are shortened slowly at the same time, the back door is driven to vertically descend until the locking ring is sleeved on the locking hook, and the closing and locking actions of the back door are completed, so that the flexibility of opening or closing the back door of the carriage is improved, the whole mechanical design is realized, and the potential safety hazard in the opening process of the back door after the carriage is unloaded by a user is eliminated as much as possible.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of an open state of the structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the embodiment of the present invention in a closed state;

fig. 3 is a schematic structural view of the vehicle compartment.

In the figure: 1. the support beam 2, the lifting device 3, the rear door 4, the rear door opening and closing oil cylinder 5, the lock ring 6, the lock hook 7, the carriage 8 and the box bottom.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

the present invention is further illustrated by the following specific examples, which are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.

Examples

As shown in fig. 1-3, the automatic rear door closing device for the tip-back dump truck comprises a supporting beam 1 installed at the tail of a carriage, a rear door 3 is hinged to the supporting beam 1, two ends of the supporting beam 1 are respectively connected with a lifting device 2, the lifting devices 2 are fixed on the corresponding inner wall of the carriage, a rear door opening and closing oil cylinder 4 for controlling the opening and closing of the rear door 3 is hinged to the inner wall of the carriage, the other end of the rear door opening and closing oil cylinder 4 is hinged to the corresponding inner wall of the carriage, the automatic rear door closing device further comprises a plurality of locking rings 5 and locking hooks 6 which are matched with each other and correspondingly arranged, the locking rings 5 are fixed on the inner side wall of the rear door 3, the locking hooks 6 are fixed at the bottom of the tail of the carriage, and.

In the embodiment, the hinge point of the rear door opening and closing oil cylinder 4 and the rear door 3 is positioned at one end close to the supporting beam 1, and the other end of the rear door opening and closing oil cylinder 4 is hinged at the bottom of the inner wall of the carriage; two groups of lock rings 5 and two groups of lock hooks 6 are correspondingly arranged; the lifting device 2 is a lifting oil cylinder, a cylinder body of the lifting oil cylinder is fixed on the inner wall of the carriage, and a piston rod of the lifting oil cylinder is fixed on the end part of the supporting beam 1; the two ends of the supporting beam 1 can be provided with sliding blocks, and the inner wall of the carriage is provided with sliding rails corresponding to the sliding blocks, so that the supporting beam 1 can be lifted more stably; the back door opening and closing oil cylinders 4 are arranged in two groups and are symmetrically arranged on the back door 3.

The utility model discloses a theory of operation: when the rear door needs to be opened, the lifting device and the rear door opening and closing oil cylinder slowly extend simultaneously to drive the rear door to vertically rise until the lock ring is separated from the lock hook, the rear door opening and closing oil cylinder rapidly extends, and the rear door rotates around the supporting beam to open the rear door; when the rear door needs to be closed, the rear door opening and closing oil cylinder is shortened quickly, the rear door rotates around the supporting cross beam, the rear door is closed, the lifting device and the rear door opening and closing oil cylinder are shortened slowly at the same time, the rear door is driven to vertically descend until the lock ring is sleeved on the lock hook, and the rear door closing and locking actions are completed.

The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a back door automatic closing device of tipping back tipper which characterized in that: the automobile rear door locking device is characterized by comprising a supporting beam (1) arranged at the tail of a carriage, wherein a rear door (3) is hinged to the supporting beam (1), two ends of the supporting beam (1) are respectively connected with a lifting device (2), the lifting device (2) is fixed to the corresponding inner wall of the carriage, a rear door opening and closing oil cylinder (4) for controlling the opening and closing of the rear door (3) is hinged to the inner wall of the carriage, the other end of the rear door opening and closing oil cylinder (4) is hinged to the corresponding inner wall of the carriage, the automobile rear door locking device further comprises a plurality of locking rings (5) and locking hooks (6) which are matched with each other and correspondingly arranged, the locking rings (5) are fixed to the inner side wall of the rear door (3), the locking hooks (6) are fixed to the bottom of the tail of the carriage, and the.

2. The automatic rear door closing device for a flip-flop dump truck according to claim 1, wherein: the hinged joint of the rear door opening and closing oil cylinder (4) and the rear door (3) is located at one end close to the supporting cross beam (1), and the other end of the rear door opening and closing oil cylinder (4) is hinged to the bottom of the inner wall of the carriage.

3. The automatic rear door closing device for a flip-flop dump truck according to claim 2, wherein: the lock ring (5) and the lock hook (6) are correspondingly provided with two groups.

4. The automatic rear door closing device for a flip-flop dump truck according to claim 3, wherein: the lifting device (2) is a lifting oil cylinder, the body of the lifting oil cylinder is fixed on the inner wall of the carriage, and the piston rod of the lifting oil cylinder is fixed on the end part of the supporting beam (1).