CN205523483U

CN205523483U - Folding jack of traction lever

Info

Publication number: CN205523483U
Application number: CN201620307881.6U
Authority: CN
Inventors: 王腾飞; 孙嘉; 葛志超
Original assignee: LIYANG SYSTEM EQUIPMENT Co Ltd OF 28TH RESEARCH INSTITUTE
Current assignee: LIYANG SYSTEM EQUIPMENT Co Ltd OF 28TH RESEARCH INSTITUTE
Priority date: 2016-04-13
Filing date: 2016-04-13
Publication date: 2016-08-31
Anticipated expiration: 2026-04-13

Abstract

The utility model discloses a folding jack of traction lever, including frame, connector and traction lever, still include connecting piece and setting element, the connecting piece is U groove structure, the fixed one end of being close to the connector at the frame that sets up of connecting piece, the notch of connecting piece is down, the setting element is U groove structure, and the setting element is fixed to be set up on the frame, is the notch of setting element 90 towards connector, the U -shaped tank bottom face of setting element with the contained angle of horizontal plane 110 the degree. Through setting up connecting piece and setting element, when the traction lever is in unoperated state, need not fill in the steel pipe of frame with the traction lever, only need the traction lever upwards rotatoryly around rotatory round pin, make the traction lever card establish in the U -shaped groove of setting element, the length portion of traction lever receives frame length's restriction, save space, and the steel pipe thickness of traction lever does not receive the restriction of frame steel pipe.

Description

The folding and retraction mechanism of draw bar

Technical field

This utility model belongs to steering drawbar of traction type equipment technical field, is specifically related to the folding of a kind of draw bar Jack.

Background technology

Existing steering drawbar of traction type equipment uses rectangular steel tube, the trailer-erector adapter in front end 2, and vehicle frame uses Rectangular steel tube, as shown in Figure 1, 2, has a disadvantage in that 1), draw bar 3 is filled in vehicle frame when not working In 1, stretching out by draw bar 3 during work, the steel pipe thickness that draw bar 3 uses is by vehicle frame 1 steel pipe Limit, and the thickness of draw bar 3 has influence on the quality size that can draw；2), off working state time, need by Draw bar 3 is retracted in vehicle frame 1 square tube, and the length of draw bar 3 is limited by vehicle frame 1 length, draw bar The effect length of 3 is to the steering behaviour of traction type equipment；3) even if draw bar 3 is at contraction state, still drag Car adapter 2 part is stretched outside vehicle frame 1, affects overall dimensions of a car.

Summary of the invention

The purpose of this utility model is to provide the folding and retraction mechanism of a kind of draw bar, solves to drag in prior art Hang and standby turn to draw bar draw off gear to be affected by the size of frame steel pipe, and draw bar shrink after full car length relatively Long technical problem.

In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that

The folding and retraction mechanism of draw bar, including vehicle frame, adapter and draw bar, also includes connector and location Part, described connector is U-lag structure, and connector is fixedly installed on vehicle frame one end near adapter, even Down, connector is provided with breach on the base plate of adapter one end to the notch of fitting, this breach and draw bar Adapt；Run through on the side plate of described connector and offer hole one, location and connecting hole, hole one, location and connecting hole It is positioned at sustained height, and connecting hole is located close to adapter one end, the movable U being fastened on connector of draw bar In shape groove, rotating dog is hinged with connector by draw bar through connecting hole；Described keeper is U-lag structure, Keeper is fixedly installed on vehicle frame, the notch of keeper towards adapter, the U-lag bottom surface of keeper with The angle of horizontal plane is 90-110 degree；Matching with the breach of connector in the lower end of keeper, draw bar can Rotating up and be arranged in keeper around rotating dog is in U-lag, the side plate of keeper runs through offer and determines Hole two, position；Hole, location three and location Kong Si is offered on described draw bar.

When draw bar is in running order, and it is fastened in the U-lag of connector, by steady pin through fixed One end of draw bar is fixed in the U-lag of connector by hole, position one and hole three, location, prevents draw bar from rotating, It is at level；When draw bar is in off working state, extract steady pin, then by draw bar around Rotating dog rotates up, and makes draw bar be fastened in the U-lag of keeper, and draw bar is arranged in connection simultaneously In the breach of part base plate, because the angle of the U-lag bottom surface of keeper and horizontal plane is 90-110 degree, so Utilize draw bar self gravitation to reach self-locking effect, then by steady pin through hole two, location, location Kong Si will lead Draw bar to be connected with keeper, can effectively prevent draw bar from tumbling downwards.

Improving further, described keeper is provided with otic placode near the both sides of vehicle frame one end, and keeper passes through otic placode It is connected with vehicle frame, makes more firm the fixing of keeper and vehicle frame.

Compared with prior art, this utility model has the advantages that

By arranging connector and keeper, when draw bar is in off working state, it is not necessary to by draw bar plug Enter in the steel pipe of vehicle frame, only draw bar need to be rotated up around rotating dog, make draw bar be fastened on the U of keeper In shape groove, the length portion of draw bar is limited by vehicle frame length, saves space, and the steel pipe thickness of draw bar Do not limited by vehicle frame steel pipe.

Accompanying drawing explanation

Fig. 1 is that the structural diagrams of the folding and retraction device of draw bar in prior art is intended to.

Fig. 2 is Fig. 1 top view.

Fig. 3 is the folding and retraction mechanism structure schematic diagram of draw bar described in the utility model.

Fig. 4 is Fig. 3 top view.

Fig. 5 is the front view of connector described in the utility model.

Fig. 6 is the left view of Fig. 5.

Fig. 7 is the front view of keeper described in the utility model.

Fig. 8 is the left view of Fig. 7.

Fig. 9 is the top view of Fig. 7.

Detailed description of the invention

For making the purpose of the present invention and technical scheme clearer, below in conjunction with the embodiment of the present invention to the present invention Technical scheme be clearly and completely described.

As shown in figs. 3-9, the folding and retraction mechanism of draw bar, including vehicle frame 1, adapter 2 and draw bar 3, Also including connector 4 and keeper 5, described connector 4 is U-lag structure, and connector 4 is fixedly installed on Vehicle frame 1 is near one end of adapter 2, and down, connector 4 is near adapter 2 one end for the notch of connector 4 Base plate on be provided with breach, this breach adapts with draw bar 3；Run through out on the side plate of described connector 4 Being provided with hole 1, location and connecting hole, hole 1, location and connecting hole are positioned at sustained height, and connecting hole is positioned against Nearly adapter 2 one end, in the movable U-lag being fastened on connector 4 of draw bar 3, rotating dog 7 passes Connecting hole is by hinged with connector 4 for draw bar 3；Described keeper 5 is U-lag structure, and keeper 5 leans on The both sides of nearly vehicle frame 1 one end are provided with otic placode, and keeper 5 is connected with vehicle frame 1 by otic placode, keeper 5 Notch towards adapter 2, the U-lag bottom surface of keeper 5 and the angle of horizontal plane are 95 degree；Keeper Matching with the breach of connector 4 in the lower end of 5, draw bar 3 can rotate up around rotating dog 7 and be arranged in Keeper 5 is in U-lag, the side plate of keeper 5 runs through and offers hole 28, location；Described draw bar Hole, location three and hole 49, location is offered on 3.

When draw bar 3 is in running order, and it is fastened in the U-lag of connector 4, passes through steady pin One end of draw bar 3 is fixed in the U-lag of connector 4 by 10 through hole, location 1 and hole three, location, Prevent draw bar 3 from rotating so that it is to be in level；When draw bar 3 is in off working state, extract solid Rationed marketing 10, then rotates up draw bar 3 around rotating dog 7, makes draw bar 3 be fastened on the U of keeper 5 In shape groove, during draw bar 3 is arranged in the breach of connector 4 base plate simultaneously, because the U-lag of keeper 5 Bottom surface is 95 degree with the angle of horizontal plane, so utilizing draw bar 3 self gravitation to reach self-locking effect, then leads to Cross steady pin wear 10 cross holes, location 28, location holes 49 draw bar 3 is connected with keeper 5, Ke Yiyou Effect prevents draw bar 3 from tumbling downwards.

This utility model does not does illustrate be prior art or can be realized by prior art, and And be embodied as case described in this utility model and be only preferable case study on implementation of the present utility model, not use Limit practical range of the present utility model.The most all according to the content of this utility model claim made etc. Effect change and modification, all should be used as technology category of the present utility model.

Claims

1. the folding and retraction mechanism of draw bar, including vehicle frame (1), adapter (2) and draw bar (3), its Being characterised by, also including connector (4) and keeper (5), described connector (4) is U-lag structure, Connector (4) is fixedly installed on vehicle frame (1) one end near adapter (2), the notch of connector (4) Down, connector (4) is provided with breach on the base plate of adapter (2) one end, this breach and draw bar (3) adapt；

Run through on the side plate of described connector (4) and offer hole one (6), location and connecting hole, position hole one (6) Being positioned at sustained height with connecting hole, and connecting hole is located close to adapter (2) one end, draw bar (3) is movable Formula is fastened in the U-lag of connector (4), and rotating dog (7) and connects draw bar (3) through connecting hole Fitting (4) is hinged；

Described keeper (5) is U-lag structure, and keeper (5) is fixedly installed on vehicle frame (1), fixed The notch of position part (5) is towards adapter (2), the U-lag bottom surface of keeper (5) and the angle of horizontal plane For 90-110 degree；Match with the breach of connector (4) in the lower end of keeper (5), draw bar (3) energy Enough rotating up and be arranged in keeper (5) around rotating dog (7) is in U-lag, the side of keeper (5) Run through on plate and offer hole two (8), location；

Hole, location three and location Kong Si (9) is offered on described draw bar (3).

The folding and retraction mechanism of draw bar the most according to claim 1, it is characterised in that described keeper (5) The both sides of vehicle frame (1) one end are provided with otic placode, and keeper (5) is connected with vehicle frame (1) by otic placode.