CN207449549U - A kind of movable trailer hitch frame - Google Patents

Abstract

The utility model discloses a kind of movable trailer hitch frames in movable trailer field, including traffic cycle, further include the mini-roundabout above traffic cycle, further include rolling shaft, further include fixing bracket, further include A-frame, further include the stretch rod arranged on A-frame afterbody, further include the circular lock catch arranged on stretch rod end, the rolling shaft inner ring is connected with fixing bracket, the fixing bracket is closely connected with mini-roundabout, and the rolling shaft outer ring is connected with A-frame, and rolling element is equipped between the outer ring for rolling shaft and inner ring.The utility model is moved easily, and can sit down conversion angle up and down, and it is convenient to stretch, and more occasions is suitble to use.

Description

A kind of movable trailer hitch frame

Technical field

The utility model is related to movable trailer field, more particularly to a kind of movable trailer hitch frame.

Background technology

Hitch frame is widely used in various movable trailer structures, but current hitch frame is more inflexible, can not be flexible Left and right and rotate upwardly and downwardly, when consigning large-sized object, hitch frame can not stretch etc. inferior position influences to consign efficiency, it is impossible to full The use in the more places of foot.

Utility model content

The purpose of this utility model is to provide more places and uses, and design is reasonable, turns to a kind of convenient movable trailer traction Frame.

What the purpose of this utility model was realized in：A kind of movable trailer hitch frame, including traffic cycle, further includes and is arranged on Mini-roundabout above traffic cycle further includes rolling shaft, further includes fixing bracket, further include A-frame, further includes arranged on three The stretch rod of angle support afterbody further includes the circular lock catch arranged on stretch rod end, the rolling shaft inner ring and fixing bracket Connection, the fixing bracket are closely connected with mini-roundabout, and the rolling shaft outer ring is connected with A-frame, the rolling shaft Outer ring and inner ring between be equipped with rolling element.

Compared with prior art, the beneficial effects of the utility model are：Due to the setting of traffic cycle and mini-roundabout, traction Frame can control conversion angle；Due to rolling the setting of shaft, hitch frame can convert angle up and down；Due to A-frame end The setting of stretch rod, the length of hitch frame can stretch in due course, and overall structure is simple, turn to flexibly, applicable situation is more.

As the preferred embodiment of the utility model, the traffic cycle is equipped with fixing rivet with mini-roundabout center.

As the further preferred scheme of the utility model, the A-frame with roll shaft outer ring and fixing bracket with The connection mode of shaft inner ring is rolled as welding.

It is equipped with as the further preferred scheme of the utility model, between the A-frame multiple for reinforced support knot The reinforcing rib of structure intensity.

As the further preferred scheme of the utility model, the rolling bearing is internally provided with the guarantor for avoiding rolling element friction Hold frame.

Description of the drawings

Fig. 1 is the structure diagram of the utility model.

Fig. 2 is the internal structure schematic diagram at the utility model A.

Fig. 3 is the structure diagram that the utility model applies to trailer.

Wherein, 1 traffic cycle, 2 mini-roundabouts, 3 roll shaft, and 31 roll shaft inner ring, and 32 roll shaft outer ring, and 33 roll Body, 34 retainers, 4 fixing brackets, 5 A-frames, 6 stretch rods, 7 locks, 8 fixing rivets, 9 reinforcing ribs.

Specific embodiment

As shown in Figure 1, a kind of movable trailer hitch frame, including traffic cycle 1, further includes small turn above traffic cycle 1 Disk 2 further includes and rolls shaft 3, further includes fixing bracket 4, further include A-frame 5, further include arranged on 5 afterbody of A-frame Stretch rod 6 further includes the circular lock catch 7 arranged on 6 end of stretch rod, rolls shaft inner ring 31 and is connected with fixing bracket 4, fixed branch Frame 4 is closely connected with mini-roundabout 2, is rolled shaft outer ring 32 and is connected with A-frame 5, rolls the outer ring 32 of shaft with rolling shaft Rolling element 33 is equipped between inner ring 31.

Above-mentioned traffic cycle 1 is equipped with fixing rivet 8 with 2 center of mini-roundabout.

Above-mentioned A-frame 5 and roll shaft outer ring 32 and fixing bracket 4 and the connection mode of rolling shaft inner ring 31 is Welding.

The multiple reinforcing ribs 9 for being used for reinforced support structural strength are equipped between above-mentioned A-frame 5.

Above-mentioned rolling bearing 3 is internally provided with the retainer 34 that rolling element 33 is avoided to rub.

The operation principle of the utility model is described below, and hitch frame is fixedly connected with pedestal, and mini-roundabout 2 can turn greatly Left rotation and right rotation on disk 1, external rolling shaft 3, which can be realized, to be rotated upwardly and downwardly, and the stretch rod 6 of afterbody can realize stretching for hitch frame Contracting, increases its applicability.

The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed in the utility model, this The technical staff in field is not required performing creative labour special to some of which technology according to disclosed technology contents Sign makes some and replaces and deform, these are replaced and deformation is within the protection scope of the present utility model.

Claims (5)

1. a kind of movable trailer hitch frame, it is characterised in that：Including traffic cycle, the mini-roundabout above traffic cycle is further included, Rolling shaft is further included, further includes fixing bracket, further includes A-frame, further includes the stretch rod arranged on A-frame afterbody, Further include the circular lock catch arranged on stretch rod end, the rolling shaft inner ring is connected with fixing bracket, the fixing bracket and Mini-roundabout closely connects, and the rolling shaft outer ring is connected with A-frame, is set between the outer ring of the rolling shaft and inner ring There is rolling element.

2. a kind of movable trailer hitch frame according to claim 1, it is characterised in that：The traffic cycle and mini-roundabout center Equipped with fixing rivet.

3. a kind of movable trailer hitch frame according to claim 1, it is characterised in that：The A-frame is with rolling shaft Outer ring and fixing bracket are with rolling the connection mode of shaft inner ring as welding.

4. a kind of movable trailer hitch frame according to claim 1, it is characterised in that：It is equipped between the A-frame more A reinforcing rib for reinforced support structural strength.

5. a kind of movable trailer hitch frame according to claim 1, it is characterised in that：The rolling bearing, which is internally provided with, to be kept away Exempt from the retainer of rolling element friction.