CN202357937U

CN202357937U - Container back door self-locking device for dump truck

Info

Publication number: CN202357937U
Application number: CN201120451273XU
Authority: CN
Inventors: 康树堂
Original assignee: Hebei Hongchang Tianma Special Vehicle Co Ltd
Current assignee: Hebei Hongchang Tianma Special Vehicle Co Ltd
Priority date: 2011-11-15
Filing date: 2011-11-15
Publication date: 2012-08-01
Anticipated expiration: 2021-11-15

Abstract

The utility model relates to a container back door self-locking device for a dump truck, belonging to the technical field of dump truck components. The self-locking device comprises a self-locking chain, an upper base welded on a container floor and a rear tail beam, a lower base connected to a chassis rear tail beam, a lock chain connecting rod assembly connected with the lower end of the self-locking chain and a plate type lock hook assembly, wherein the lock hook assembly is connected with the upper base through a first pin shaft; the upper end of the self-locking chain is movably connected with the lock hook assembly; the lock chain connecting rod assembly is movably connected with the lower base; and a buffer sleeve is arranged on the lock chain connecting rod assembly. Due to the container back door self-locking device for a dump truck, the deformation and fall-off of the lock hook as well as the fall-off phenomena of the self-locking chain can be reduced in smashing and bumping processes of ores.

Description

Door self-locking device behind the capacity of the tipping body

Technical field

The utility model relates to the dumping car equipment technical field, refers to door self-locking device behind a kind of capacity of the tipping body especially.

Background technology

Dumping car is all being played the part of important role as a kind of special-use vehicle in urban construction and communications and transportation, yet along with the increasing of mining area exploitation dynamics, it is increasingly high that self dumping lorory back door jack self-locking anti-pounded performance requriements.Existing self dumping lorory back door jack self-locking device is because the latch hook assembly is bigger; And great majority are set to two latch hook assemblies; When dumping material fast; Material impacts from chain and latch hook assembly, receives great impulsive force from chain, bearing pin and latch hook assembly in this moment, causes easily from chain to pound the disconnected latch hook assembly that reaches by the phenomenon of pounding distortion, coming off.

The utility model content

The purpose of the utility model is to provide door self-locking device behind a kind of capacity of the tipping body, and it can pounding, bumping the distortion that reduces latch hook in the process, come off and from the obscission of chain at ore.

To achieve these goals; The technical solution of the utility model is: door self-locking device behind a kind of capacity of the tipping body; Comprise from chain; Wherein also comprise be welded in top base on the tail boom of cargo floor and back, be connected in the bottom base on the tail boom behind the chassis, with bonded assembly chain pipe link assembly and a board-like latch hook assembly from the chain lower end, said latch hook assembly is connected with said top base through first bearing pin, said upper end and the flexible connection of latch hook assembly from chain; Said chain pipe link assembly and bottom base flexibly connect, and on the said chain pipe link assembly cushion collar are installed.

Door self-locking device behind the utility model capacity of the tipping body; The left side of wherein said latch hook assembly is provided with two and connects otic placode; Said upper end from chain connects with two said otic placodes that are connected through second bearing pin; Said chain pipe link assembly is placed through on the backing plate, and said chain pipe link assembly is fixed on the backing plate through nut, and the rear and front end of said backing plate is installed on the bottom base through bearing pin respectively.

Door self-locking device behind the utility model capacity of the tipping body, wherein said latch hook assembly is a Z-shaped plate.

Door self-locking device behind the utility model capacity of the tipping body, wherein said bottom base pass through bolted connection on tail boom behind the chassis.

After adopting such scheme, door self-locking device will be movably connected on respectively from the two ends of chain on the upper and lower pedestal through the upper and lower pedestal of captive joint on cargo floor and chassis behind the utility model capacity of the tipping body; When dumping goods; Container rises to make from chain and fluffs, and the latch hook assembly is turned under the effect of goods, and open at the container back door; Realize dumping of goods; Because latch hook assembly quantity is one and for plank frame, what this had just reduced latch hook assembly and material bumps, hits probability, even there is collision the while; Also can alleviate the latch hook assembly largely through cushion collar and reach the stressing conditions from chain, the latch hook assembly of generation is pounded distortion, obscission reaches and pounds disconnected phenomenon from chain because ore is pounded, bumped in the charging process can to reduce dumping car effectively.

Description of drawings

Fig. 1 is the structural representation of door self-locking device behind the utility model capacity of the tipping body;

Fig. 2 is the front view of the embodiment of door self-locking device behind the utility model capacity of the tipping body.

Below in conjunction with accompanying drawing, the utility model is done further explanation through embodiment;

The specific embodiment

As depicted in figs. 1 and 2; Door self-locking device behind the utility model capacity of the tipping body, comprise from chain 1, be welded in top base 3 on the tail boom 11 of cargo floor and back, through the bottom base 4 of bolted connection on tail boom behind the chassis 12, with from chain 1 lower end bonded assembly chain pipe link assembly 5 and Z-shaped plate latch hook assembly 2.

Selecting diameter for use from chain 1 is 18 millimeters the short link chain of reusing, and design strengthens the diameter from chain 1 like this, thereby can improve the intensity from chain 1.Latch hook assembly 2 is connected with top base 3 through first bearing pin 6; The left side of latch hook assembly 2 is processed with two and connects otic placode 7; Be connected otic placode 7 from the upper end of chain 1 with two through second bearing pin 8 and connect, chain pipe link assembly 5 is placed through on the backing plate 9, and chain pipe link assembly 5 is fixed on the backing plate 9 through nut; The rear and front end of backing plate 9 is installed on the bottom base 4 through bearing pin respectively, and the part outside face that chain pipe link assembly 5 passes backing plate 9 is equipped with cushion collar 10.

In conjunction with shown in Figure 2, when dumping goods, container rises; Each hinge-point position on the latch hook assembly 2 changes relatively, makes from chain 1 to fluff, under the double action that goods promotes backward and the center of gravity of latch hook assembly 2 is more outside than the center of gravity of back upset bearing pin; Latch hook assembly 2 is turned over; Open rapidly under the little situation of lifting angle at container back door 13, realizes dumping of goods, because the quantity of latch hook assembly 2 is one and is Z-shaped plate; This has just reduced the collision probability of latch hook assembly 1 with material; Even collision is arranged simultaneously, also can alleviate the stressing conditions that latch hook assembly 2 reaches from chain 1 largely through cushion collar 10, the latch hook assembly of generation is pounded distortion, obscission reaches and pounds disconnected phenomenon from chain because ore is pounded, bumped in the charging process can to reduce dumping car effectively.And when this device locking, with 2 tensions of latch hook assembly, container back door 13 is in the failure-free locking state from chain 1, no matter vehicle goes on which type of road conditions in this state, can accident not open at the back door yet.

Above-described embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that the common engineering staff in this area make the technical scheme of the utility model all should fall in the protection domain that claims of the utility model confirm.

Claims

1. door self-locking device behind the capacity of the tipping body; Comprise from chain (1); It is characterized in that: also comprise be welded in top base (3) on the tail boom of cargo floor and back, be connected in the bottom base (4) on the tail boom behind the chassis, with from chain (a 1) lower end bonded assembly chain pipe link assembly (5) and a board-like latch hook assembly (2); Said latch hook assembly (2) is connected with said top base (3) through first bearing pin (6); Said upper end and latch hook assembly from chain flexibly connects, and said chain pipe link assembly and bottom base flexibly connect, and cushion collar (10) is installed on the said chain pipe link assembly (5).

2. door self-locking device behind the capacity of the tipping body as claimed in claim 1; It is characterized in that: the left side of said latch hook assembly (2) is provided with two and connects otic placode (7); Said upper end from chain (1) connects with two said otic placodes (7) that are connected through second bearing pin (8); Said chain pipe link assembly (5) is placed through on the backing plate (9), and said chain pipe link assembly (5) is fixed on the backing plate (9) through nut, and the rear and front end of said backing plate (9) is installed on the bottom base (4) through bearing pin respectively.

3. door self-locking device behind according to claim 1 or claim 2 the capacity of the tipping body, it is characterized in that: said latch hook assembly (2) is Z-shaped plate.

4. door self-locking device behind the capacity of the tipping body as claimed in claim 3 is characterized in that: said bottom base (4) passes through bolted connection on tail boom behind the chassis.