CN207088871U - A kind of hinge assembly with dust reduction capability - Google Patents

Abstract

The utility model discloses a kind of hinge assembly with dust reduction capability in cleaning technical field of vehicle, including the hinge body for being hinged front stall and back seat, also include being arranged on front stall, for inserting the axial hole of hinge body, hinge body includes hinge, oscillating bearing, hinge is inserted into axial hole vertically by oscillating bearing, hinge body also includes dust-proof seal ring, oil seal, lower extension set, lower extension set is sleeved on hinge, dust-proof seal ring inner circumferential side is sleeved on lower extension set outer circumferential side, and dust-proof seal ring is in axial hole, dust-proof seal ring outer circumferential side is against axial hole inwall；Oscillating bearing is between lower extension set and oil seal.Possess good anti-dust performance, it is more smoothly when can rotate.

Description

A kind of hinge assembly with dust reduction capability

Technical field

Cleaning technical field of vehicle is the utility model is related to, is used to be hinged front stall and back seat more particularly on vehicle chassis Hinge assembly.

Background technology

In order that must clean vehicle can obtain good flexibility when turning, the chassis for cleaning vehicle is usually arranged as The front stall and back seat being hinged, vehicle chassis, which is provided with, to be used to be hinged the hinge assembly of front stall and back seat, by steering mechanism Lai The relative angle of front stall and back seat is controlled, to cause front stall and back seat when turning in same radius of turn.Hinge assembly Including for being hinged the hinge body of front stall and back seat, in addition to it is arranged on axial direction on front stall, for inserting hinge body Hole, hinge body include hinge, oscillating bearing, and hinge is inserted into axial hole vertically by oscillating bearing.

But because site environment is more severe, dust is easy to invade oscillating bearing, causes hinge assembly when rotated It is not smooth enough.

Utility model content

The purpose of this utility model is to provide a kind of hinge assembly with dust reduction capability, more suitable when can rotate Freely.

What the purpose of this utility model was realized in：A kind of hinge assembly with dust reduction capability, including for being hinged The hinge body of front stall and back seat, in addition to it is arranged on axial hole on front stall, for inserting hinge body, the hinge master Body includes hinge, oscillating bearing, and the hinge is inserted into axial hole vertically by oscillating bearing, and the hinge body also includes Dust-proof seal ring, oil seal, the lower extension set of circle nested structure, the dust-proof seal ring, oil seal are circular ring；It is described Lower extension set is sleeved on hinge, and the dust-proof seal ring inner circumferential side is sleeved on lower extension set outer circumferential side, and described dust-proof close Seal is in axial hole, and the dust-proof seal ring outer circumferential side is against axial hole inwall；The oscillating bearing is in lower extension set Between oil seal；The oil seal inner circumferential side is sleeved on hinge, and the oil seal outer circumferential side is against axial hole inwall.

Compared with prior art, the beneficial effects of the utility model are：Possess good, comprehensive anti-dust performance, make It is more smoothly when can rotate；Lower extension set can provide reference for installation for dust-proof seal ring, oscillating bearing；Lower extension set and anti- The comprehensive use of dirt sealing ring, can prevent dust from invading oscillating bearing from above, in case dust influences the smooth rotation degree of hinge, Oil sealing assembly can prevent dust from following intrusion oscillating bearing.

As further improvement of the utility model, the hinge body also includes end plate, wears connecting bolt；The end plate leads to To cross and wear connecting bolt and be removably mounted on hinge upper end, the hinge is provided with to be used to wear and wears wearing for connecting bolt and connect screwed hole, The pressured back seat of end plate.End plate can provide benchmark for the installation of hinge.

As further improvement of the utility model, the hinge is provided be easy to lifting bolt to penetrate, aperture and is more than Wear the lifting screwed hole for connecing screwed hole, it is coaxial that the lifting screwed hole and wearing connects screwed hole, and described lifts screwed hole lower end Connect screwed hole upper end with wearing and connect, the lifting screwed hole upper end and hinge upper end are mutually neat.Lifting screwed hole setting be in order to It is easy to lift, repairs.

Brief description of the drawings

Fig. 1 is the structure chart of hinge body.

Fig. 2 is position view of the hinge body in integral layout.

Wherein, 1 front stall, 1a axial holes, 2 back seats, 3 hinge bodies, 301 hinges, 301a lifting screwed holes, 301b, which is worn, connects spiral shell Pit, 302 end plates, 303 wear connecting bolt, 304 times extension sets, 305 dust-proof seal rings, 306 oscillating bearings, 307 oil seals.

Embodiment

As shown in Figure 1-2, a kind of hinge assembly with dust reduction capability, including for being hinged the hinge of front stall 1 and back seat 2 Main body 3, in addition to be arranged on axial hole 1a on front stall 1, for inserting hinge body 3, hinge body 3 include hinge 301, Oscillating bearing 306, hinge 301 are inserted into axial hole 1a vertically by oscillating bearing 306, and hinge body 3 also includes dust-proof close Seal 305, oil seal 307, the lower extension set 304 of circle nested structure, dust-proof seal ring 305, oil seal 307 are circular knot Structure；Lower extension set 304 is sleeved on hinge 301, and the inner circumferential side of dust-proof seal ring 305 is sleeved on the lower outer circumferential side of extension set 304, and Dust-proof seal ring 305 is in axial hole 1a, and the outer circumferential side of dust-proof seal ring 305 is against axial hole 1a inwalls；At oscillating bearing 306 Between lower extension set 304 and oil seal 307；The inner circumferential side of oil seal 307 is sleeved on hinge 301, and the outer circumferential side of oil seal 307 supports By axial hole 1a inwalls.

Above-mentioned hinge body 3 also includes end plate 302, wears connecting bolt 303；End plate 302 is by wearing connecting bolt 303 removably It is mounted on the upper end of hinge 301, hinge 301 is provided with to be used to wear and wears wearing for connecting bolt 303 and meet screwed hole 301b, and end plate 302 leans on Press back seat 2.End plate 302 can provide benchmark for the installation of hinge 301.

Above-mentioned hinge 301 is provided be easy to lifting bolt to penetrate, aperture and is more than the lifting screw thread worn and meet screwed hole 301b It is coaxial that hole 301a, lifting screwed hole 301a and wearing meet screwed hole 301b, and lifts screwed hole 301a lower ends and connect screwed hole with wearing 301b upper ends connect, and lift screwed hole 301a upper ends and the upper end of hinge 301 is mutually neat.

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

Claims (3)

1. a kind of hinge assembly with dust reduction capability, including for being hinged front stall（1）And back seat（2）Hinge body（3）, also Including being arranged on front stall（1）On, for inserting hinge body（3）Axial hole（1a）, the hinge body（3）Including hinge （301）, oscillating bearing（306）, the hinge（301）Pass through oscillating bearing（306）It is inserted into axial hole vertically（1a）In, it is special Sign is：The hinge body（3）Also include dust-proof seal ring（305）, oil seal（307）, circle nested structure lower extension set （304）, the dust-proof seal ring（305）, oil seal（307）It is circular ring；The lower extension set（304）It is sleeved on hinge Axle（301）On, the dust-proof seal ring（305）Inner circumferential side is sleeved on lower extension set（304）Outer circumferential side, and the dust seal Circle（305）In axial hole (1a), the dust-proof seal ring（305）Outer circumferential side is against axial hole (1a) inwall；The joint Bearing（306）In lower extension set（304）And oil seal（307）Between；The oil seal（307）Inner circumferential side is sleeved on hinge （301）On, the oil seal（307）Outer circumferential side is against axial hole（1a）Inwall.

A kind of 2. hinge assembly with dust reduction capability according to claim 1, it is characterised in that：The hinge body （3）Also include end plate（302）, wear connecting bolt（303）；The end plate（302）By wearing connecting bolt（303）Removably it is mounted on Hinge（301）Upper end, the hinge（301）It is provided with and is used to wear to wear connecting bolt（303）Wear and connect screwed hole（301b）, it is described End plate（302）Pressured back seat（2）.

A kind of 3. hinge assembly with dust reduction capability according to claim 2, it is characterised in that：The hinge（301） It is provided be easy to lifting bolt to penetrate, aperture and is more than the lifting screwed hole worn and connect screwed hole (301b)（301a）, the lifting Screwed hole（301a）Screwed hole is connect with wearing（301b）Coaxially, and the lifting screwed hole（301a）Lower end connects screwed hole with wearing （301b）Upper end connects, the lifting screwed hole（301a）Upper end and hinge（301）Upper end is mutually neat.