CN201304994Y - Towing pin with self-locking function - Google Patents
Towing pin with self-locking function Download PDFInfo
- Publication number
- CN201304994Y CN201304994Y CNU2008202171071U CN200820217107U CN201304994Y CN 201304994 Y CN201304994 Y CN 201304994Y CN U2008202171071 U CNU2008202171071 U CN U2008202171071U CN 200820217107 U CN200820217107 U CN 200820217107U CN 201304994 Y CN201304994 Y CN 201304994Y
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- CN
- China
- Prior art keywords
- pin
- towing
- block tongue
- towing pin
- self
- 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
The utility model discloses a towing pin with a self-locking function, which comprises a towing pin body, a block tongue and a pin shaft, wherein the block tongue is connected with the pin body through the pin shaft, and the gravity core of the block tongue is arranged on the upper end of the pin shaft and at the outer side of the pin shaft; the pin body is also provided with a stage for limiting the block tongue; and the pin shaft is of a drift bolt. Compared with the prior art, the towing pin has simple structure and easy production process, and can realize the self locking; the prior towing pin is locked manually and can hardly realize the self-locking function. The towing pin with self-locking function realizes the self-locking function with the gravity, i.e. when the towing pin passes through a towing hole, the scalene triangle block tongue rotates along with the passing screw under the effect of the gravity, and another angle of the block tongue has the effect of the limit function, thereby preventing dropping of the towing pin from causing danger for the towing device unlocks the towing pin because of the shaking, vibration or human element.
Description
Technical field
The utility model towing pin relates to and is used for most drift bolt formula draw geares, and this towing pin can be used for the draw gear between the rail vehicle, in the draw gear of mobile substation.
Background technology
Well-known most rail vehicle, flat truck, the mobile substation, all need to orbit, draw gear is a very important part, and most draw geares all uses towing plate to add the form of towing pin, this traction form is simple and practical, and wherein comparatively crucial be towing pin, the situation of vibrations because in the equipment moving process, can occur unavoidably jolting, perhaps towing pin is not locked because of artificial negligence, just there is out of stock possibility in so common towing pin, thereby equipment and traction power are broken away from, skid off and cause very big danger, and this later-model towing pin with auto-lock function, just can successfully solve this difficult problem, the bottom of this towing pin is provided with the block tongue that can freely rotate between 0o ~ 75o, after towing pin vertically passes towing pad, the block tongue of towing pin end can open automatically because of action of gravity, open rear haulage pin radius obviously greater than towing pad, thereby realized auto-lock function, prevented that the danger in aforementioned from taking place.
Summary of the invention
The utility model provides a kind of simple in structure, towing pin with auto-lock function of being convenient to make and can solve the problem that towing pin is deviate from easily in the draw gear.
The utility model adopts following technical scheme:
A kind of towing pin with auto-lock function comprises towing pin shank, block tongue and bearing pin, and described block tongue is rotationally connected by bearing pin and shank, and the center of gravity of described block tongue is in the upper end of bearing pin, and is positioned at the outside of bearing pin.
On described shank, also be provided with the step that is used for spacing described block tongue.
Described bearing pin is a drift bolt.
Compared with prior art, the utlity model has following advantage:
The utility model is simple in structure, manufacture craft realizes easily, maximum characteristics are to realize self-locking, existing towing pin mostly is artificial locking, seldom can realize auto-lock function, and being the ingenious gravity that utilizes, this later-model towing pin realized auto-lock function, promptly work as towing pin and pass towing pad, scalene triangle block tongue meeting by gravity, along the drift bolt rotation, another angle of block tongue is played limit function and is used, prevent that draw gear is because of jolting, vibrations, or do not carry out towing pin locking because of human negligence, and cause towing pin to be deviate from, and the danger that causes, can make block tongue in the towing pin bilateral symmetry in order to increase its self-locking reliability, reason is identical.
Reasonablely be
The first, block tongue has utilized gravity and has opened;
The second, block tongue is a scalene, lays particular stress on the heart and makes block tongue rotate easily;
Three, avoid the danger that exists towing pin to deviate from because of artificial non-locking, realize auto-lock function;
Four, the bi-directional symmetrical locking makes self-locking more reliable.
Description of drawings
Fig. 1 is the structural representation of towing pin of the present utility model.
Wherein: the movable block tongue 2 block tongue drift bolts 3 of towing pin 1 scalene
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated, comprise towing pin shank 1, towing pin end block tongue 2, the movable drift bolt 3 of block tongue, its structure is, block tongue shape car fabrication tongue breach is pressed in towing pin 1 end, the breach rear end is formed for the step of spacing described block tongue, the flat back preparation of car block tongue 2, and in the line of centers smooth place tapping of towing pin end, boring on the block tongue 2, with drift bolt 3 block tongue 2 and towing pin 1 are assembled together, the center of gravity G of block tongue 2 is in the upper end of drift bolt 3 and be positioned at the outside of drift bolt 3, thereby, under free state, block tongue 2 can rotate around drift bolt 3, thereby finish auto-lock function under the effect of gravity.It should be noted that and to guarantee that block tongue can free rotate, and just can play the function of self-locking in use in the scope that angle allows on drift bolt.
Claims (3)
1, a kind of towing pin with auto-lock function, comprise towing pin shank (1), block tongue (2) and bearing pin (3), described block tongue (2) is rotationally connected by bearing pin (3) and shank (1), it is characterized in that: the center of gravity of described block tongue (2) is in the upper end of bearing pin (3), and is positioned at the outside of bearing pin (3).
2, the towing pin with auto-lock function according to claim 1 is characterized in that: also be provided with the step that is used for spacing described block tongue on described shank (1).
3, the towing pin with auto-lock function according to claim 1 is characterized in that: described bearing pin (3) is a drift bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202171071U CN201304994Y (en) | 2008-11-26 | 2008-11-26 | Towing pin with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202171071U CN201304994Y (en) | 2008-11-26 | 2008-11-26 | Towing pin with self-locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201304994Y true CN201304994Y (en) | 2009-09-09 |
Family
ID=41097456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202171071U Expired - Fee Related CN201304994Y (en) | 2008-11-26 | 2008-11-26 | Towing pin with self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201304994Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913309A (en) * | 2010-09-15 | 2010-12-15 | 湖南双马电气有限公司 | Meet bolt self-locking device for mining electric locomotive |
| CN102267345A (en) * | 2011-05-31 | 2011-12-07 | 高宏 | Run-preventing pin roll for vehicle |
| CN103071782A (en) * | 2013-01-11 | 2013-05-01 | 浙江欧德申自动化设备有限公司 | Clamp pulling-out mechanism for storage battery cast welding machine |
-
2008
- 2008-11-26 CN CNU2008202171071U patent/CN201304994Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913309A (en) * | 2010-09-15 | 2010-12-15 | 湖南双马电气有限公司 | Meet bolt self-locking device for mining electric locomotive |
| CN102267345A (en) * | 2011-05-31 | 2011-12-07 | 高宏 | Run-preventing pin roll for vehicle |
| CN103071782A (en) * | 2013-01-11 | 2013-05-01 | 浙江欧德申自动化设备有限公司 | Clamp pulling-out mechanism for storage battery cast welding machine |
| CN103071782B (en) * | 2013-01-11 | 2014-10-08 | 浙江欧德申自动化设备有限公司 | Clamp pulling-out mechanism for storage battery cast welding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA ELECTRIC EQUIPMENT(JIANGSU) CO., LTD Free format text: FORMER OWNER: ZHONGDIAN ELECTRIC GROUP CO., LTD. Effective date: 20100727 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 212200 NO.188, ZHONGDIAN AVENUE, YANGZHONG CITY DEVELOPMENT AREA, JIANGSU PROVINCE TO: 212200 ZHONGDIAN STREET, YANGZHONG CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100727 Address after: 212200 CLP Road, Yangzhong, Jiangsu Patentee after: CEEG (Jiangsu) Co., Ltd. Address before: 212200 No. 188, CLP Road, Yangzhong Development Zone, Jiangsu Patentee before: Zhongdian Electric Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20121126 |