CN201339631Y - Screw thread type pin - Google Patents
Screw thread type pin Download PDFInfo
- Publication number
- CN201339631Y CN201339631Y CNU2008202247827U CN200820224782U CN201339631Y CN 201339631 Y CN201339631 Y CN 201339631Y CN U2008202247827 U CNU2008202247827 U CN U2008202247827U CN 200820224782 U CN200820224782 U CN 200820224782U CN 201339631 Y CN201339631 Y CN 201339631Y
- Authority
- CN
- China
- Prior art keywords
- pin
- screw thread
- diameter
- base
- base 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
The utility model discloses a screw thread type pin which comprises a pin and a base seat; wherein one end of the pin is embedded into and corresponding with a rotating platen, a rail groove is formed on the upper side of the end simultaneously, screw thread is lathed at the other end of the pin, a flat column with the diameter smaller than the diameter of the screw thread is arranged at the top end of the pin, and a round hole is formed on the flat column; round holes are formed at the four corners of the bottom of the base seat and fixed on the walking beam of an oil pumping unit, the base seat is a semicircular column, a through hole is formed in the middle of the base seat, the diameter thereof is corresponding to the diameter of the pin, a compression return spring is installed at the screw thread part of the pin, and when the base seat is assembled with the pin, a nut is installed at the top end of the screw thread part of the pin. The screw thread type pin has the advantages of safety, rust prevention, convenient operation, simple structure and easy processing.
Description
Technical field
The utility model relates to a kind of Petroleum Machinery Industry, especially relates to a kind of pin that is used for pumping unit.
Background technique
Now, in the petroleum production process, the displacement of the horse head pin of pumping unit drops by the hairspring backguy, the situation that has the strength deficiency that is flexible coupling, easily rust is dead for horse head pin of long duration, and horse head is turned in operation have to integral demounting base retaining screw, both dangerous, waste time and energy again.Particularly horse head pin dismounting when the bottom is very difficult and dangerous, and the high-altitude accident easily takes place.
Summary of the invention
The purpose of this utility model is the shortcoming at prior art, has designed a kind of screw thread formula pin.
The technological scheme that the utility model adopted is: a kind of screw thread formula pin, comprise pin and base, and an end of pin embeds the rotation platen and adapts, this end upside is opened a rail slot simultaneously, the other end car of pin has screw thread, and the top is the diameter flat post littler than screw thread, has circular hole on the flat post; There is circular hole four jiaos of the bottoms of base and is fixed on the walking beam of pumping unit, and base is semicircle cylinder, the porose perforation of base central authorities, and the diameter in hole and the diameter of pin adapt.The pin screw thread partly is equipped with compression reseting spring.When base and pin assembling, nut is equipped with on the top of pin screw thread part.
Compared with prior art, the utility model has solved the problem of moving back pin strength deficiency easily, and the top of base has screw, can pour into lubricant oil, and is safe in utilization, antirust, easy and simple to handle, simple in structure, easy processing etc.
Description of drawings
Fig. 1 is the structural representation of facing of the present utility model.
Fig. 2 is an A-A sectional view of the present utility model.
Wherein, 1 is circular hole, and 2 is nut, and 3 is base, and 4 is screw thread, and 5 is compression reseting spring, and 6 is pin, and 7 is rail slot, and 8 is flat post, and 9 is screw.
Embodiment
Be described in detail embodiment of the present utility model below in conjunction with accompanying drawing.
A kind of screw thread formula pin comprises pin 6 and base 3, and an end of pin 6 embeds the rotation platen and adapts, and this end upside is opened a rail slot 7 simultaneously, and the other end car of pin 6 has screw thread 4, and the top flat post 8 littler than screw thread 4 that be diameter has circular hole on the flat post 8; There is circular hole four jiaos of the bottoms of base 3 and is fixed on the walking beam of pumping unit, be semicircle cylinder, base 3 central porose perforations, the diameter of the diameter in hole and pin 6 adapts, and screw thread 4 parts are equipped with compression reseting spring 5, when base 3 assembles with pin 6, nut 2 is equipped with on the top of screw thread 4 parts, be used to control pin 6 turnover, the top of base 3 has screw 9, can pour into lubricant oil.
Claims (3)
1, a kind of screw thread formula pin comprises pin and base, it is characterized in that the end embedding rotation platen of pin adapts, and this end upside is opened a rail slot simultaneously, and the other end car of pin has screw thread, and the top is the diameter flat post littler than screw thread, has circular hole on the flat post; There is circular hole four jiaos of the bottoms of base and is fixed on the walking beam of pumping unit, are semicircle cylinder, the porose perforation of base central authorities, and the diameter in hole and the diameter of pin adapt.
2, a kind of screw thread formula pin according to claim 1 is characterized in that the pin screw thread partly is equipped with compression reseting spring.
3, a kind of screw thread formula pin according to claim 1, when it is characterized in that the assembling of base and pin, nut is equipped with on the top of pin screw thread part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202247827U CN201339631Y (en) | 2008-12-01 | 2008-12-01 | Screw thread type pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202247827U CN201339631Y (en) | 2008-12-01 | 2008-12-01 | Screw thread type pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201339631Y true CN201339631Y (en) | 2009-11-04 |
Family
ID=41235179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202247827U Expired - Fee Related CN201339631Y (en) | 2008-12-01 | 2008-12-01 | Screw thread type pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201339631Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879095A (en) * | 2015-06-04 | 2015-09-02 | 中国石油天然气股份有限公司 | Pumping unit horsehead connecting device |
| CN104907994A (en) * | 2015-04-15 | 2015-09-16 | 王福成 | Anti-channeling anti-dropping anti-cracking self-taking type horse head pin whole device |
| CN107654461A (en) * | 2016-07-25 | 2018-02-02 | 波音公司 | Self extending formula centering component and its operating method |
-
2008
- 2008-12-01 CN CNU2008202247827U patent/CN201339631Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907994A (en) * | 2015-04-15 | 2015-09-16 | 王福成 | Anti-channeling anti-dropping anti-cracking self-taking type horse head pin whole device |
| CN104879095A (en) * | 2015-06-04 | 2015-09-02 | 中国石油天然气股份有限公司 | Pumping unit horsehead connecting device |
| CN107654461A (en) * | 2016-07-25 | 2018-02-02 | 波音公司 | Self extending formula centering component and its operating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20101201 |