CN201761321U - Heavy-duty car front traction apparatus - Google Patents
Heavy-duty car front traction apparatus Download PDFInfo
- Publication number
- CN201761321U CN201761321U CN2010205158004U CN201020515800U CN201761321U CN 201761321 U CN201761321 U CN 201761321U CN 2010205158004 U CN2010205158004 U CN 2010205158004U CN 201020515800 U CN201020515800 U CN 201020515800U CN 201761321 U CN201761321 U CN 201761321U
- Authority
- CN
- China
- Prior art keywords
- groove
- projection
- towing pin
- pin
- key seat
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
A heavy-duty car front traction apparatus is characterized in that, a projecting block is arranged at the lateral face of an upper part of a traction pin, a groove is arranged at an upper surface of the projecting block; a deposited hole capable of accommodating the projecting block to rotate therein is arranged at an upper part of a pin base; the traction apparatus also comprises a flexible pressing sheet fixedly mounted on the pin base, a groove with the shape similar to that of the groove on the projecting block is arranged on the flexible pressing sheet, the projecting block can enable the groove of the flexible pressing sheet to be pressed into the groove thereof by the rotating of the traction pin, so that the traction pin can be locked. Compared to locking apparatuses such as a flexible pin in prior art, the utility model has advantages of simple structure, easy machining, reliable locking and convenient operation.
Description
Technical field
The utility model relates to the pre-traction device of heavy motor vehicle, pre-traction device especially axial, that circumferentially all can lock.
Background technology
Heavy motor vehicle is saved oneself in order to launch better, generally can pre-traction device be set at the midway location of front bumper crossbeam, insertion pre-traction devices such as steel rope, draw bar is rescued when unexpected so that occur.
At present, the pre-traction device that heavy motor vehicle adopts generally is made up of traction key seat, cylindrical towing pin, leans on the gravity of towing pin self to be pressed in key seat, lacks latching device.Be exactly that vertical shank direction is provided with a circular hole in the lower end of towing pin on the basis of said structure, towing pin is inserted socket after, in its circular hole, insert the resilient pin locking.Automobile pitches in the process of moving easily, pitches to make towing pin up and down play and rotation, and key seat and front bumper are produced collide with, towing pin even can lose when play is excessive, it is passive to produce when needing to be rescued immediately.
The utility model content
The purpose of this utility model is to provide a kind of improved heavy motor vehicle pre-traction device, towing pin can be locked, and prevents that it from losing or collide with miscellaneous part.
For achieving the above object, heavy motor vehicle pre-traction device of the present utility model comprises key seat and towing pin, it is characterized in that: the side on described towing pin top is provided with projection, and the projection upper surface has groove; Described key seat top is provided with and can holds the counterbore that this projection rotates therein; Described draw gear also comprises the elastic pressuring plate that is fixedly mounted on the key seat, described elastic pressuring plate be provided with to described projection on the similar groove of groove shapes, described projection can make the groove of elastic pressuring plate be pressed in its groove by the rotation of towing pin, and towing pin is locked.
Wherein, described elastic pressuring plate can be by screw retention on described key seat.
Technique effect of the present utility model is, designs projection in towing pin one side, projection upper surface cutting flutes, and projection sinks in the counterbore of key seat.The groove of projection and the elastic pressuring plate pairing that has groove equally during locking, elastic pressuring plate compresses the towing pin projection, thereby with towing pin locking simultaneously on axial and circumferential.For latching devices such as resilient pin of the prior art, the utility model easy processing simple in structure, reliable lock is easy to operate simultaneously.
Description of drawings
Fig. 1 is a towing pin locking state cutaway view;
Fig. 2 is a towing pin locking state birds-eye view
Wherein:
1 towing pin, 2 elastic pressuring plates, 3 bolts, 4 key seats
11 projections, 41 counterbores
The specific embodiment
In conjunction with illustrated in figures 1 and 2, heavy motor vehicle pre-traction device of the present utility model comprises towing pin 1 and key seat 4.The side on towing pin 1 top is provided with projection 11, and the top of key seat 4 is provided with and holds the counterbore 41 that projection 11 rotates therein simultaneously.Elastic pressuring plate 2 usefulness screws 3 are fixedly mounted on above the key seat 4.The groove that the similar and coupling of shape is respectively arranged on elastic pressuring plate 2 and the projection 11.Suitably rotate (in the present embodiment for rotating counterclockwise) towing pin 1 in counterbore 41, can make in the groove of groove screw-in projection 11 of elastic pressuring plate 2, towing pin 1 is just by locking.With towing pin 1 clickwise, the groove of elastic pressuring plate 2 just can screw out the groove of projection 11, and towing pin 1 can be extracted.
Claims (2)
1. a heavy motor vehicle pre-traction device comprises key seat and towing pin, it is characterized in that:
The side on described towing pin top is provided with projection, and the projection upper surface has groove;
Described key seat top is provided with and can holds the counterbore that this projection rotates therein;
Described draw gear also comprises the elastic pressuring plate that is fixedly mounted on the key seat, described elastic pressuring plate be provided with to described projection on the similar groove of groove shapes, described projection can make the groove of elastic pressuring plate be pressed in its groove by the rotation of towing pin, and towing pin is locked.
2. heavy motor vehicle pre-traction device as claimed in claim 1 is characterized in that, described elastic pressuring plate by screw retention on described key seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205158004U CN201761321U (en) | 2010-08-31 | 2010-08-31 | Heavy-duty car front traction apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205158004U CN201761321U (en) | 2010-08-31 | 2010-08-31 | Heavy-duty car front traction apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201761321U true CN201761321U (en) | 2011-03-16 |
Family
ID=43713928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205158004U Expired - Fee Related CN201761321U (en) | 2010-08-31 | 2010-08-31 | Heavy-duty car front traction apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201761321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740618A (en) * | 2017-01-12 | 2017-05-31 | 中国重汽集团济南动力有限公司 | A kind of pre-traction device for matching expanded letter offroad vehicle bumper |
-
2010
- 2010-08-31 CN CN2010205158004U patent/CN201761321U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740618A (en) * | 2017-01-12 | 2017-05-31 | 中国重汽集团济南动力有限公司 | A kind of pre-traction device for matching expanded letter offroad vehicle bumper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20180831 |