CN204451874U - A kind of coupling unit - Google Patents
A kind of coupling unit Download PDFInfo
- Publication number
- CN204451874U CN204451874U CN201520129397.4U CN201520129397U CN204451874U CN 204451874 U CN204451874 U CN 204451874U CN 201520129397 U CN201520129397 U CN 201520129397U CN 204451874 U CN204451874 U CN 204451874U
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- China
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- transition piece
- jump ring
- coupling unit
- assembling element
- latching device
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Abstract
The utility model provides a kind of coupling unit, it comprises ball neck part, for the assembling element keeping the bool of ball neck part, the transition piece be connected with bool and be connected with transition piece, described assembling element can be assemblied in the tail end of auto body at their opposite side; Described assembling element and transition piece junction are provided with anti-rock latching device, and described anti-rock latching device is looped around junction outside face, and utilize the fixed orifice on anti-rock latching device to be fixed on assembling element; Described ball neck part comprises bulb, neck, annular boss and thread segment from top to bottom successively, and described bulb surface is provided with dust boot, and described dust boot one end is connected and fixed by jump ring, and the perisporium of annular boss is provided with the annular groove snapped in for jump ring.The utility model can prevent from rocking by actv. in the process of moving, have damping effect, and available protecting bulb, finally extend the service life of each parts of connecting device, applicable various, highly versatile.
Description
Technical field
The utility model relates to a kind of coupling unit, belongs to vehicle auxiliary accessories technical field.
Background technology
Existing Trailer tool is generally made up of trailer bulb and tow arm assembly, and tow arm assembly generally comprises tow arm body and be connected to the trailer ball cover on tow arm body, tow arm assembly is installed on the towing vehicle usually, trailer bulb is then usually arranged on and pulls, fault car etc. are pulled on vehicle, when needs by towing vehicle be pulled vehicle be connected time, staff needs first to drive to appropriate location by towing vehicle, make tow arm assembly corresponding with trailer bulb, then cover by the spherical head of trailer ball cover by trailer bulb, the last manual-lock lockout mechanism be arranged on trailer ball cover just can make spherical head be stuck in trailer ball cover.
But can according to the difference (as road surface is uneven) of road conditions in the process that trailer travels with fault car, each connecting portion ratio is easier to rock, increase the degree of wear of each parts, the matching property between mutual parts can be caused to decline, thread failure, bolt and nut assembling loosen, and produce potential safety hazard, service life shortens.
In addition, can there is left and right or swing according to the difference of road conditions (as road surface is uneven) in spherical head in ball cover.Because the spherical head of tow ball is before the non-et out of order of vehicle, it is generally all naked is exposed on the external, spherical head exposed for a long time can be stained with some dusts and the grains of sand on the surface unavoidably, therefore, when spherical head in ball cover when left and right or swing its surface easily by dust and sand erosion, scuffing, cause spherical head surface destroyed, overlong time even also there will be the stuck phenomenon in ball cover of spherical head.
Summary of the invention
For the problems referred to above; main purpose of the present utility model is to provide a kind of coupling unit; it can prevent from rocking by actv. in the process of moving; there is damping effect; and available protecting bulb; finally extend the service life of each parts of connecting device, applicable various, highly versatile.
In order to achieve the above object, the utility model adopts following technical scheme: a kind of coupling unit, it comprises ball neck part, for the assembling element keeping the bool of ball neck part, the transition piece be connected with bool and be connected with transition piece, described assembling element can be assemblied in the tail end of auto body at their opposite side; Described assembling element and transition piece junction are provided with anti-rock latching device, and described anti-rock latching device is looped around junction outside face, and utilize the fixed orifice on anti-rock latching device to be fixed on assembling element with bolt; Described ball neck part comprises bulb, neck, annular boss and thread segment from top to bottom successively, and described bulb surface is provided with dust boot, and described dust boot one end is connected and fixed by jump ring, and the perisporium of annular boss is provided with the annular groove snapped in for jump ring.Dust boot can prevent extraneous dust from entering in ball cover, and jump ring can be utilized during use to be clamped in annular groove by dust boot top, and like this, in the utility model use procedure, no matter how how ball neck part swings, and dust boot all can not be shifted.
As further preferred, described jump ring comprises jump ring body, jump ring ear, jump ring ear hole, and edge, two sides, described jump ring ear hole is made up of the conical suface of inside skew back, forms cone point.
As further preferred, described thread segment end is provided with the shrinkage pool inserted for hex spanner.
As further preferred, described annular anti-rock latching device comprises the plate body of band through hole, described through hole is used for through transition piece outside face, shape, the dimensional fits of shape of through holes, size and transition piece outside face, described plate body both sides are respectively provided with baffle plate for fitting with transition piece two sides, described plate body one end is also extended, and to have with plate body be the base plate of 90-120 degree angle, is fixed on assembling element by the fixed orifice that base plate is arranged.
As further preferred, fit in described base plate and transition piece upper or lower surface.
As further preferred, described transition piece is square tube, in its one end plugging in fitting element.
As further preferably, the bottom of described ball neck part is spirally connected through the through hole of packing ring and bool one end and nut successively.
As further preferred, described assembling element comprises main sleeve pipe and telescopic pipe, and described telescopic pipe offers several spacing holes vertically in turn, and described telescopic pipe is sleeved in main sleeve pipe and utilizes spacing hole to be fixedly linked by bolt; The length of assembling element itself can be regulated equally, to adapt to the rear overhang length of different vehicle.
The beneficial effects of the utility model are: the utility model is provided with anti-rock latching device in parts junction, connection between trailer and vehicle is further fixed, can prevent from rocking by actv., there is damping effect, and the length of assembling element itself can regulate equally, to adapt to the rear overhang length of different vehicle, be suitable for various, highly versatile.In the ball cover that the setting of ball end dustproof cover can prevent from extraneous dust from entering into coordinating with bulb in addition, jump ring can be utilized during use to be clamped in annular groove by dust boot top, like this, in the utility model use procedure, no matter how how ball neck part swings, and dust boot all can not be shifted, and actv. prevents bulb by dust and sand erosion, scuffing, cause spherical head surface destroyed, overlong time even also there will be the stuck phenomenon in ball cover of spherical head.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment coupling unit.
Fig. 2 is the structural representation of anti-rock latching device in Fig. 1.
Fig. 3 is the structural representation of ball neck part in Fig. 1.
Fig. 4 is the structural representation of jump ring.
Fig. 5 be in Fig. 4 A-A to cutaway view.
Fig. 6 is the structural representation of assembling element in Fig. 1.
What mark in accompanying drawing is described as follows: 1-ball neck part, 1.1-bulb, 1.2-neck, 1.3-annular boss, 1.4-thread segment, 1.5-groove, 1.6-shrinkage pool, 2-bool, 3-transition piece, 4-assembling element, the main sleeve pipe of 4.1-, 4.2-telescopic pipe, 4.3-spacing hole, 5-latching device, 5.1-plate body, 5.2-through hole, 5.3-baffle plate, 5.4-base plate, 5.5-fixed orifice, 6-bolt, 7-jump ring, 7.1-jump ring body, 7.2-jump ring ear, 7.3-jump ring ear hole, 7.4-bore point.
Detailed description of the invention
The realization of the utility model object, functional characteristics and beneficial effect, be described further below in conjunction with specific embodiment and accompanying drawing.
Below in conjunction with the drawings and specific embodiments, technical scheme described in the utility model is described in further detail, to make those skilled in the art better can understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
As shown in figures 1 to 6, the utility model embodiment is for connecting the coupling unit of trailer and other vehicle, it comprises ball neck part 1, for the assembling element 4 keeping the bool 2 of ball neck part 1, the transition piece 3 be connected with bool 2 and be connected with transition piece 3, described assembling element 4 can be assemblied in the tail end of auto body at their opposite side; Described assembling element 4 is provided with anti-rock latching device 5 with transition piece 3 junction, and described anti-rock latching device 5 is looped around junction outside face, and utilizes the fixed orifice 5.5 on anti-rock latching device 5 to be fixed on assembling element with bolt 6; Described ball neck part 1 comprises bulb 1.1, neck 1.2, annular boss 1.3 and thread segment 1.4 from top to bottom successively, described bulb 1.1 surface is provided with dust boot and (covers bulb 1.1 surface, not shown in the figuresly to anticipate out), described dust boot one end is connected and fixed by jump ring, and the perisporium of annular boss 1.3 is provided with the annular groove 1.5 snapped in for jump ring.Dust boot can prevent extraneous dust from entering in ball cover, and jump ring can be utilized during use to be clamped in annular groove 1.5 on dust boot top.Described thread segment 1.4 end is provided with the shrinkage pool 1.6 inserted for hex spanner.
As illustrated in figures 4-5, described jump ring 7 comprises jump ring body 7.1, jump ring ear 7.2, jump ring ear hole 7.3, and edge, two sides, described jump ring ear hole 7.3 is made up of the conical suface of inside skew back, forms cone point 7.4.
As shown in Figure 1-2, described annular anti-rock latching device 5 comprises the plate body 5.1 of band through hole 5.2, described through hole 5.2 is for passing transition piece 3, shape of through holes, size and transition piece 3 shape, dimensional fits of outside face, described plate body 5.1 both sides are respectively provided with baffle plate 5.3 for fitting with transition piece 3 two sides, described plate body 5.1 one end is also extended, and to have with plate body be the base plate 5.4 of 90-120 degree angle, is fixed on assembling element by the fixed orifice 5.5 that base plate 5.4 is arranged.
Described transition piece 3 is square tube, in its one end plugging in fitting element 4.
The bottom of described ball neck part is spirally connected through the through hole of packing ring and bool one end and nut successively.
As shown in Figure 6, described assembling element 4 comprises main sleeve pipe 4.1 and telescopic pipe 4.2, and described telescopic pipe 4.2 offers several spacing holes 4.3 vertically in turn, and described telescopic pipe 4.2 is sleeved in main sleeve pipe 4.1 and utilizes spacing hole 4.3 to be fixedly linked by bolt; The length of assembling element 4 itself can be regulated, equally to adapt to the rear overhang length of different vehicle.
Claims (8)
1. a coupling unit, it is characterized in that: it comprises ball neck part, for the assembling element keeping the bool of ball neck part, the transition piece be connected with bool and be connected with transition piece, described assembling element can be assemblied in the tail end of auto body at their opposite side; Described assembling element and transition piece junction are provided with anti-rock latching device, and described anti-rock latching device is looped around junction outside face, and utilize the fixed orifice on anti-rock latching device to be fixed on assembling element; Described ball neck part comprises bulb, neck, annular boss and thread segment from top to bottom successively, and described bulb surface is provided with dust boot, and described dust boot one end is connected and fixed by jump ring, and the perisporium of annular boss is provided with the annular groove snapped in for jump ring.
2. coupling unit according to claim 1, is characterized in that: described jump ring comprises jump ring body, jump ring ear, jump ring ear hole, and edge, two sides, described jump ring ear hole is made up of the conical suface of inside skew back, forms cone point.
3. coupling unit according to claim 1, is characterized in that: described thread segment end is provided with the shrinkage pool inserted for hex spanner.
4. coupling unit according to claim 1, it is characterized in that: described annular anti-rock latching device comprises the plate body of band through hole, described through hole is used for through transition piece outside face, shape, the dimensional fits of shape of through holes, size and transition piece outside face, described plate body both sides are respectively provided with baffle plate for fitting with transition piece two sides, described plate body one end is also extended, and to have with plate body be the base plate of 90-120 degree angle, is fixed on assembling element by the fixed orifice that base plate is arranged.
5. coupling unit according to claim 4, is characterized in that: fit in described base plate and transition piece upper or lower surface.
6. coupling unit according to claim 1, is characterized in that: described transition piece is square tube, in its one end plugging in fitting element.
7. coupling unit according to claim 1, is characterized in that: the bottom of described ball neck part is spirally connected through the through hole of packing ring and bool one end and nut successively.
8. coupling unit according to claim 1, it is characterized in that: described assembling element comprises main sleeve pipe and telescopic pipe, described telescopic pipe offers several spacing holes vertically in turn, and described telescopic pipe is sleeved in main sleeve pipe and utilizes spacing hole to be fixedly linked by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520129397.4U CN204451874U (en) | 2015-03-06 | 2015-03-06 | A kind of coupling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520129397.4U CN204451874U (en) | 2015-03-06 | 2015-03-06 | A kind of coupling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204451874U true CN204451874U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520129397.4U Active CN204451874U (en) | 2015-03-06 | 2015-03-06 | A kind of coupling unit |
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| Country | Link |
|---|---|
| CN (1) | CN204451874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626899A (en) * | 2015-03-06 | 2015-05-20 | 翰桥（湖州）五金制品有限公司 | Trailer connecting device |
-
2015
- 2015-03-06 CN CN201520129397.4U patent/CN204451874U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626899A (en) * | 2015-03-06 | 2015-05-20 | 翰桥（湖州）五金制品有限公司 | Trailer connecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: The 313300 Anji County of Zhejiang city in Huzhou Province town of White Water Bay Industrial Zone Patentee after: ANJI ZHITONG HARDWARE PRODUCT CO., LTD. Address before: The 313000 Anji County in Zhejiang province Huzhou City Ping Zhen Bai industrial zone water Hanqiao (Huzhou) Hardware Products Co. Ltd. Patentee before: John bridge (Huzhou) Hardware Co., Ltd. |