CN103660818A - Trailer connecting device - Google Patents
Trailer connecting device Download PDFInfo
- Publication number
- CN103660818A CN103660818A CN201410002515.5A CN201410002515A CN103660818A CN 103660818 A CN103660818 A CN 103660818A CN 201410002515 A CN201410002515 A CN 201410002515A CN 103660818 A CN103660818 A CN 103660818A
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- China
- Prior art keywords
- connector
- connecting device
- screw
- coupling unit
- joint
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a trailer connecting device which comprises a U-shaped retaining ring connected with a trailer head and a screw detachably connected with the retaining ring, wherein the threaded rod of the screw is rotatably sleeved and connected with a six-tooth nut, and a first connector, a second connector and a third connector are detachably arranged on the outer surface of the six-tooth nut. The first connector, the second connector and the third connector are all positioned on the same plane and mutually form 120-degree angles, and the diameters of the three connectors increase gradually and the surfaces of the three connectors are provided with threads. Since the trailer connecting device provided by the invention is provided with the connectors in different sizes, when hung boxes in different sizes and tons are replaced for hanging, the entire connecting device is not required to be demounted and replaced. Therefore, the work efficiency is improved greatly.
Description
Technical field
The present invention relates to a kind of connecting device, or rather, is a kind of coupling unit.
Background technology
Trailer is comprised of chassis, car body, engine installation, electric-control system, hydraulic efficiency pressure system, extension case etc., the function such as have delivery, pull.Be mainly used in the cleaning of express highway, urban highway, plant area's article and the field such as transport.
The power headstock of trailer is connected with extension case by a connecting device conventionally.For the different purposes of trailer, conventionally need to headstock, pull the extension case of different sizes and tonnage, be so just faced with headstock and frequent connection of hanging between case.
In the prior art, headstock mainly is connected by hook with hanging between case, because the extension case that need to pull is big or small and the difference of tonnage, different extension casees has the big or small hooks of difference.Like this when change hanging case, the specification that the connecting device of headstock needs dismounting and change to mate with extension case, the more complicated that operates, waste of manpower, inefficiency.
Summary of the invention
The present invention solves the existing technical matters of prior art, thereby a kind of coupling unit that has a plurality of connectors is provided.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals:
A kind of coupling unit, the clasp that comprises " U " type being connected with headstock and one and the screw that removably connects of described clasp, on the screw rod of described screw, be socketed rotationally one or six tooth nuts, the outside face detouchable of six described tooth nuts is provided with one first connector, one second connector and a joint among three members.
As preferred embodiment of the present invention, the first described connector, the second connector and joint among three members are in same plane and be in 120 degree angles.
As preferred embodiment of the present invention, the diameter of the first described connector, the second connector and joint among three members increases gradually.
As preferred embodiment of the present invention, the surface of the first described connector, the second connector and joint among three members is provided with screw thread.
Because coupling unit of the present invention is provided with the connector of a plurality of different sizes, need not be by whole connecting device dismounting and change while changing the extension case of hanging different sizes and tonnage, thus improvement has improved work efficiency greatly.
accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the perspective view of coupling unit of the present invention;
Fig. 2 is the perspective view of the coupling unit in Fig. 1, is now another visual angle;
Fig. 3 is the perspective view of the coupling unit in Fig. 1, is now another visual angle.
The specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention are made to more explicit defining.
The invention provides a kind of coupling unit that has a plurality of connectors.
As shown in Figure 1, Figure 2 and Figure 3, a kind of coupling unit 1, the clasp 2 that comprises " U " type being connected with headstock and one and the screw 3 that removably connects of described clasp 2, on the screw rod of described screw 3, be socketed rotationally one or six tooth nuts 4, the outside face detouchable of six described tooth nuts 4 is provided with one first connector 41, one second connector 42 and a joint among three members 43.
As shown in Figure 2, described the first connector 41, the second connector 42 and joint among three members 43 is in same plane and be in 120 degree angles.
As shown in Figure 2, described the first connector 41, the second connector 42 and joint among three members 43 diameters increase gradually
As shown in Figure 1, Figure 2 and Figure 3, the surface of described the first connector 41, the second connector 42 and joint among three members 43 is provided with screw thread.
This coupling unit is provided with the connector of a plurality of different sizes, need not be by whole connecting device dismounting and change while changing the extension case of hanging different sizes and tonnage, thus greatly improved work efficiency.
Below only with an embodiment, mentality of designing of the present invention is described, in the situation that system allows, the present invention can expand to external more functional module simultaneously, thereby expands to greatest extent its function.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, and any variation of expecting without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (4)
1. a coupling unit (1), the clasp (2) that comprises " U " type being connected with headstock and one and the screw (3) that removably connects of described clasp (2), it is characterized in that, on the screw rod of described screw (3), be socketed rotationally one or six tooth nuts (4), the outside face of six described tooth nuts (4) is removably provided with one first connector (41), one second connector (42) and a joint among three members (43).
2. coupling unit according to claim 1, is characterized in that, described the first connector (41), the second connector (42) and joint among three members (43) are in same plane and be in 120 degree angles.
3. coupling unit according to claim 2, is characterized in that, the diameter of described the first connector (41), the second connector (42) and joint among three members (43) increases gradually.
4. coupling unit according to claim 3, is characterized in that, the surface of described the first connector (41), the second connector (42) and joint among three members (43) is provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002515.5A CN103660818A (en) | 2014-01-04 | 2014-01-04 | Trailer connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002515.5A CN103660818A (en) | 2014-01-04 | 2014-01-04 | Trailer connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103660818A true CN103660818A (en) | 2014-03-26 |
Family
ID=50300079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410002515.5A Pending CN103660818A (en) | 2014-01-04 | 2014-01-04 | Trailer connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103660818A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772606A (en) * | 2016-04-05 | 2016-07-20 | 孟书芳 | Drawing head for screen distribution machine body |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2039689A (en) * | 1934-12-21 | 1936-05-05 | Leroy A Tade | Trailer hitch coupling |
| US5265899A (en) * | 1993-05-10 | 1993-11-30 | Benny Harrison | Adjustable offset ball hitch |
| US5560630A (en) * | 1995-06-01 | 1996-10-01 | J.B.J. Mfg. Inc. | Rotating multiple ball trailer hitch |
| CA2279021A1 (en) * | 1999-07-27 | 2001-01-27 | Albert J.S. Boisvert | Multi ball, multi position, multi level trailer hitch |
| JP2012192833A (en) * | 2011-03-16 | 2012-10-11 | Kobe Steel Ltd | Mounting structure of attachable/detachable towing hook |
| CN203637483U (en) * | 2014-01-04 | 2014-06-11 | 何敬丽 | Trailer connecting device |
-
2014
- 2014-01-04 CN CN201410002515.5A patent/CN103660818A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2039689A (en) * | 1934-12-21 | 1936-05-05 | Leroy A Tade | Trailer hitch coupling |
| US5265899A (en) * | 1993-05-10 | 1993-11-30 | Benny Harrison | Adjustable offset ball hitch |
| US5560630A (en) * | 1995-06-01 | 1996-10-01 | J.B.J. Mfg. Inc. | Rotating multiple ball trailer hitch |
| CA2279021A1 (en) * | 1999-07-27 | 2001-01-27 | Albert J.S. Boisvert | Multi ball, multi position, multi level trailer hitch |
| JP2012192833A (en) * | 2011-03-16 | 2012-10-11 | Kobe Steel Ltd | Mounting structure of attachable/detachable towing hook |
| CN203637483U (en) * | 2014-01-04 | 2014-06-11 | 何敬丽 | Trailer connecting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772606A (en) * | 2016-04-05 | 2016-07-20 | 孟书芳 | Drawing head for screen distribution machine body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |