CN2250837Y - Tool with three jaws - Google Patents
Tool with three jaws Download PDFInfo
- Publication number
- CN2250837Y CN2250837Y CN 95219156 CN95219156U CN2250837Y CN 2250837 Y CN2250837 Y CN 2250837Y CN 95219156 CN95219156 CN 95219156 CN 95219156 U CN95219156 U CN 95219156U CN 2250837 Y CN2250837 Y CN 2250837Y
- Authority
- CN
- China
- Prior art keywords
- pin
- special shaped
- nut
- shaped nut
- screw rod
- 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
Links
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model relates to a novel tool with three jaws. An inner hole of an upper fork of the utility model is matched with a special shaped nut which is provided with a bearing; three square grooves of a fork arm are connected with each one end of pull jaws by a round pin; the lower end of the special shaped nut is provided with three pin holes, the upper end of the special shaped nut is provided with two keyways symmetrical with each other, the keyways are respectively matched with screw caps which are provided with keys, and the keyways and the screw caps are fixed by retainer rings; the special shaped nut is matched with a tetragonal screw rod with a flat top, and three square grooves of a lower three-way fork and a curved arm of the pull claw are connected with a connection plate and the round pin; the nut is matched with a regulation screw rod which is provided with a pull pin of a spring, and the joining and the separation of the special shaped nut and the regulation screw rod are respectively controlled by the pull pin of the spring. When the utility model is operated, a position clamping piece of the pull claw is regulated, the tetragonal screw rod is pulled by a wrench, a screw cap is rotated by a ratchet wrench, the screw rod moves axially, and pieces can be disassembled.
Description
The utility model three-jaw instrument relates to a kind of old-fashioned three-jaw instrument, especially clip, adjusts rapidly and operate light a kind of novel three-jaw instrument.
Existing old-fashioned three-jaw instrument, screw tip are that 60 degree are top, and shed stick is equipped with in the rear end, during dismounting on the top centre bore that withstands on axle, rotate shed stick make screw rod be subjected to through and the power rotation is moved.The between centers masterpiece is used on nut, the top and centre bore, therefore produces very big frictional force, has strengthened labour intensity.So top and centre bore damages easily.
Adjusting screw(rod) and nut are one, and nut cooperates with screw rod, and the external diameter of adjusting screw(rod) has screw thread anyway.There is the four directions upper end, rotates the four directions with spanner, makes the pulling claw hypertonic, and clip adjusting efficient is low.
The purpose of this utility model is at above-mentioned old-fashioned three-jaw instrument, the deficiency that prior art exists and a kind of advanced tools of developing.Especially clip is adjusted rapidly, and part is not fragile during dismounting, reduces labor intensity characteristics such as high efficiency and highly versatile.
The utility model three-jaw instrument, bearing chamber of trident endoporus cooperates with the special shaped nut that thrust ball bearing is housed on it, and 3 square grooves of yoke are connected with the garden pin with pulling claw one end.There are 3 pin-and-holes the special shaped nut lower end, and the upper end has two symmetrical keyways to cooperate with the nut that studs with key, is fixed on back-up ring on the boss of trident.And special shaped nut cooperates with the screw rod in flat-top four directions.3 square grooves of following trident are connected with connecting with plate garden pin with the pulling claw curved boom.And the nut of trident cooperates with adjusting screw(rod) down.Adjusting screw(rod) is equipped with spring and draws pin, and its upper end cooperates with the special shaped nut pin-and-hole, and endoporus cooperates with flat-top four directions screw clearance.The clutch of special shaped nut and adjusting screw(rod) is drawn pin control with spring.
The utility model three-jaw instrument divides three series, can dismantle wheel, bearing, belt pulley and gear etc.See the attaching figure for details.
Accompanying drawing: novel three-jaw tool construction installation diagram
Among the figure: 1, back-up ring 2, nut 3, last trident, 4, spring draw pin 5, following trident 6, flat-top four directions screw rod 7, key 8, bearing 9, special shaped nut 10, back-up ring 11, connecting plate 12, garden pin 13, adjusting screw(rod) 14, pulling claw.
In the drawings, the bearing chamber of last trident (3) endoporus cooperates with the special shaped nut that thrust ball bearing (8) are housed (9), and pulling claw (4) one ends of 3 square grooves of yoke connect with the garden pin.There are 3 pin-and-holes special shaped nut (9) lower end, and the upper end has two symmetrical keyways to cooperate with the nut that studs with key (7) (2), is fixed on the boss of trident with back-up ring (1).And special shaped nut (9) cooperates with the screw rod (6) in flat-top four directions, and the nut of trident (5) cooperates with adjusting screw(rod) (13) down, adjusting screw(rod) (13) is equipped with spring and draws pin (4), and its upper end cooperates with the pin-and-hole of special shaped nut (9), endoporus and flat-top four directions screw rod (6) matched in clearance.The clutch of special shaped nut (9) and adjusting screw(rod) (6) is drawn pin (4) control with spring.3 square grooves of following trident (5) and the curved boom place of pulling claw are connected with connecting plate (11) and garden pin (12).
The utility model three-jaw tool operation method is as follows:
Before dismounting, draw pin (4) to rotate 90 degree on spring and enter in special shaped nut (9) pin-and-hole and is connected with adjusting screw(rod) (13), usefulness hand rotating screw cap (2) on the parts that pulling claw blocked be disassembled, is adjusted screw rod (6) simultaneously, makes on its end face that withstands on spool.Again spring is drawn pin to mention and rotate 90 degree, both are thrown off, the ratchet spanner is enclosed within on the nut (2), be enclosed within on the four directions on the screw rod (6) with little spanner, prop up screw rod and do not allow rotation, move the ratchet spanner thereafter up and down, its screw axial is moved, parts can be disassembled.Draw pin to turn 90 degrees propelling on spring again, rotating screw cap, the parts that are removed are deviate from pulling claw.
Succeeding in developing of the utility model instrument, the maintenance and the service work that have well solved plant equipment.Reduce frictional force, alleviated labour intensity, on average improved 2～4 times of work efficiency, reduced maintenance cost, improved repair quality, accomplished the scientific civilization maintenance.
Claims (4)
1, a kind of novel three-jaw instrument is characterized in that the bearing chamber of trident endoporus cooperates with the special shaped nut that thrust ball bearing is housed, and 3 square grooves of yoke are connected with round pin with pulling claw one end.
2, novel three-jaw instrument according to claim 1 is characterized in that the special shaped nut lower end has 3 pin-and-holes, mid portions that thrust ball bearing is housed, and the upper end has two symmetrical keyways to cooperate with the nut that studs with key, is fixed on back-up ring on the boss of trident.And special nut cooperates with the screw rod in flat-top four directions.
3, novel three-jaw instrument according to claim 1 is characterized in that 3 square grooves of following 3 forks and pulling claw curved boom fix with connecting plate and round pin.Following trident nut cooperates with adjusting screw(rod).
4, novel three-jaw instrument according to claim 1 is characterized in that adjusting screw(rod) is equipped with spring and draws pin, and the upper end cooperates with special shaped nut lower end pin-and-hole.Endoporus cooperates with flat-top four directions screw clearance.The clutch of special shaped nut and adjusting screw(rod) is drawn pin control with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219156 CN2250837Y (en) | 1995-08-09 | 1995-08-09 | Tool with three jaws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219156 CN2250837Y (en) | 1995-08-09 | 1995-08-09 | Tool with three jaws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2250837Y true CN2250837Y (en) | 1997-04-02 |
Family
ID=33867427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95219156 Expired - Fee Related CN2250837Y (en) | 1995-08-09 | 1995-08-09 | Tool with three jaws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2250837Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431008A (en) * | 2011-12-23 | 2012-05-02 | 中华人民共和国张家港出入境检验检疫局 | Three-jaw drawing device |
| CN101207258B (en) * | 2006-12-15 | 2013-06-05 | 株式会社美姿把 | Commutator, mold for producing commutator, and method for producing commutator |
| CN106041493A (en) * | 2014-09-09 | 2016-10-26 | 朱玉兵 | Device for unloading shaft end bearing |
| CN106984964A (en) * | 2017-05-31 | 2017-07-28 | 山东大学深圳研究院 | A kind of keyboard automatic disassembling device controlled based on image recognition and pressure sensing |
-
1995
- 1995-08-09 CN CN 95219156 patent/CN2250837Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207258B (en) * | 2006-12-15 | 2013-06-05 | 株式会社美姿把 | Commutator, mold for producing commutator, and method for producing commutator |
| CN102431008A (en) * | 2011-12-23 | 2012-05-02 | 中华人民共和国张家港出入境检验检疫局 | Three-jaw drawing device |
| CN106041493A (en) * | 2014-09-09 | 2016-10-26 | 朱玉兵 | Device for unloading shaft end bearing |
| CN106984964A (en) * | 2017-05-31 | 2017-07-28 | 山东大学深圳研究院 | A kind of keyboard automatic disassembling device controlled based on image recognition and pressure sensing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |