CN201179635Y - Spanner sleeve head for stretch-draw lock member - Google Patents
Spanner sleeve head for stretch-draw lock member Download PDFInfo
- Publication number
- CN201179635Y CN201179635Y CNU2008200283674U CN200820028367U CN201179635Y CN 201179635 Y CN201179635 Y CN 201179635Y CN U2008200283674 U CNU2008200283674 U CN U2008200283674U CN 200820028367 U CN200820028367 U CN 200820028367U CN 201179635 Y CN201179635 Y CN 201179635Y
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- CN
- China
- Prior art keywords
- ring
- wrench
- stretch
- latch fitting
- spanner
- 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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a wrench sleeve head for stretching a latch fitting. The wrench sleeve head is characterized by comprising a protective sleeve with a protective sleeve bracket, wherein the inner part of the protective sleeve is provided with a wrench ring, the inner opening of the wrench ring has a mume flower buckle, the external diameter of the wrench ring is provided with continuous thumb pressing shaped teeth in the same direction, and an elastic pin is arranged inside the protective sleeve bracket and drives the wrench ring to rotate in a single direction by engagement of the elastic pin with the thumb pressing shaped teeth of the wrench ring. The wrench sleeve head can be easily sleeved on or taken off in the process of operating a latch fitting nut and does not have the turned-over phenomenon on the latch fitting nut. The wrench sleeve head can be taken as a tool special for stretching the latch fitting of a track of a ballastless track system and also can be applied and manufactured into wrench sleeve heads for tightening nuts with different specifications.
Description
Technical field
It is pullover that the utility model relates to a kind of spanner, and it is pullover with spanner that particularly a kind of high-speed railway ballastless track system track plate vertically connects operation stretch-draw latch fitting.
Background technology
Beijing-Tianjin inter-city railway is all laid the rich lattice plate of II type ballastless track completely, be connected with six stretch-draw latch fittings between plate and the plate, the length of every block of plate is 6.5m, and stretch-draw connection request moment reaches 450Nm, it carries out in the wide small space of about 20cm, and requires from the centre to the paired symmetrical stretch-draw in both sides.
According to the specification requirement of stretch-draw, the stretch-draw of joint base board post poured band, the applicant has introduced a kind of stretch-draw latch fitting connection spanner from Germany.Have moment values on the wrenching bar of this spanner, but also warning device is installed, when reversing the moment values that reaches regulation, just can send " Ka Ka " sound, expression stretch-draw has reached designing requirement.Before carrying out stretch-draw, at first to check the moment scale value of indicating on the wrenching bar, whether adhere to specification, if undesirable, should adjust earlier, and locking.Initial selected driving end has been continued to use conventional open spanner at hand, promptly the open-end wrench headgear is being had on the wrenching bar of moment scale value.
Use discovery through reality:, in implementation process, have following shortcoming although this stretch-draw instrument can be stuck on the latch fitting nut with comparalive ease:
1. the driving end opening is owing to mismachining tolerance, and what have is big slightly, and what have is slightly little; Add nonstandard (what have is bigger than normal, and what have is less than normal) that the latch fitting nut is also processed, cause many nut sleeve not get on, must Panasonic change, delay a lot of times.
When the opening of driving end bigger with the gap of nut, be easy to cause driving end slide fastener on the latch fitting nut, cause stretch-draw not reach the moment values of regulation, make construction quality can not get assurance; With its replacing of resigning from office, also be not easy very much operation.
3. the driving end revolution is moving once all needs wrenching bar to resign from office, and sets up again, needs repeatedly several times like this, consumes many times, has influenced construction speed.
4. after this open spanner rotates at hand, very easily contact with the stretch-draw latch fitting, owing to it can not reverse, quite difficult when causing wrenching bar to withdraw from.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of stretch-draw latch fitting pullover to rotary spanner with folk prescription, can in operation latch fitting nut process, can easily set up and resign from office, and spanner is pullover the slide fastener phenomenon can not to take place on the latch fitting nut, cooperates with the torque spanner bar and can conveniently implement definite value stretch-draw.
For reaching above purpose, the utility model takes following technical scheme to be achieved:
A kind of stretch-draw latch fitting is pullover with spanner, it is characterized in that, comprise the sheath that has the sheath frame, be provided with in the sheath and pull ring, pulling the ring internal orifice is the plum blossom button, pull the ring external diameter and be provided with continuous equidirectional thumb and press the shape tooth, be provided with the bullet pin in the described sheath frame, this bullet pin by with pull the ring thumb and press the engagement of shape tooth and make and pull the ring folk prescription to rotation.
In the such scheme, be provided with the spiral pin hole in the described sheath frame, the bullet pin is arranged in this spiral pin hole, also is provided with fixedly spiral pin in the spiral pin hole, this fixedly spiral pin connect described bullet pin by spring.Described plum blossom button is the regular polygon button.The angle on the adjacent both sides of regular polygon button is preferably 120 °.
The utility model has the advantages that:
1. can make the wrenching bar folk prescription to the rotation clamp nut, opposite spin does not produce moment of torsion to nut.
2. after pulling the ring set top nut, after finishing, stretch-draw just resigns from office; Reinforcing bar of stretch-draw only needs cover once like this, moves back once, can save a lot of times.
3. adopt the plum blossom button owing to pull the ring internal orifice, in the process of operation, can easily spanner be put and back off, and in the process of stretch-draw the slide fastener phenomenon does not take place.
4. wrenching bar can reverse, so wrenching bar needn't change once and move back once, and has solved the wrenching bar contradiction inconsistent with being connected latch fitting.
The utility model is except that connecting the latch fitting specific purpose tool as the stretch-draw of high-speed railway ballastless track system track plate, and it is pullover also can be employed the spanner that is made into the different size nut.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
Fig. 2, Fig. 3 are respectively front view and the side view of pulling ring among Fig. 1.
Fig. 1 is in Fig. 3: 1, pull ring; 2, thumb is pressed the shape tooth; 3, plum blossom button; 4, fixing spiral pin; 5, spiral pin hole; 6, sheath; 7, bullet pin; 8, spring; 9, connect pin-and-hole; 10, sheath frame.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
To shown in Figure 3, a kind of stretch-draw latch fitting is pullover with spanner, comprises the sheath 6 that has sheath frame 10 as Fig. 1, be provided with in the sheath and pull ring 1, pulling ring 1 internal orifice is plum blossom button 3, and plum blossom button 3 is the regular polygon button, present embodiment is positive dodecagon, and the angle on adjacent both sides is 120 ° (Fig. 2).Pull ring 1 external diameter mid portion and be provided with along circumferential continuous equidirectional thumb and press shape tooth 2, each tooth all forms the slope teeth groove from shallow to deep, so that pull ring 1 folk prescription to applying moment, and can slide in the other direction and does not produce moment.Be provided with spiral pin hole 5 and fixing spiral pin 4 in the sheath frame 10, Lower Half is provided with screw thread in the spiral pin hole, and fixedly spiral pin 4 can screwin by this screw thread; The first half is the light face, and bullet pin 7 slides up and down in spiral pin hole 5 by this light face.Fixedly spiral pin 4 connects the lower end of bullet pins 7 by spring 8, the upper end of bullet pin 7 by with pull the ring thumb and press the engagement of shape tooth 2 and make and pull ring 1 folk prescription and reverse idle running in the other direction to the application of force.Under the effect of spring 8, bullet pin 7 will be pulled ring 1 and be fixed in the sheath 6.When bullet pin 7 upper ends were positioned at thumb and press the teeth groove place, slope of shape tooth 2, when turning clockwise sheath 6, bullet pin 7 can block thumb and press teeth groove bosom, shape tooth 2 slope and make and pull 1 pair of nut of ring and apply moment; When being rotated counterclockwise sheath 6, bullet pin 7 is pressed at thumb under the effect on teeth groove inclined-plane, shape tooth 2 slope and is rotated, and does not pull ring 1 and can not block.The spanner of present embodiment is pullover to be connected with the wrench bar by connecting pin-and-hole 9 usefulness connecting pins.
Claims (4)
1. a stretch-draw latch fitting is pullover with spanner, it is characterized in that, comprise the sheath that has the sheath frame, be provided with in the sheath and pull ring, pulling the ring internal orifice is the plum blossom button, pull the ring external diameter and be provided with continuous equidirectional thumb and press the shape tooth, be provided with the bullet pin in the described sheath frame, this bullet pin by with pull the ring thumb and press the engagement of shape tooth and make and pull the ring folk prescription to rotation.
2. stretch-draw latch fitting according to claim 1 is pullover with spanner, it is characterized in that be provided with the spiral pin hole in the described sheath frame, the bullet pin is arranged in this spiral pin hole, also is provided with fixedly spiral pin in the spiral pin hole, this fixedly spiral pin connect described bullet pin by spring.
3. stretch-draw latch fitting according to claim 1 and 2 is pullover with spanner, it is characterized in that, described plum blossom button is the regular polygon button.
4. stretch-draw latch fitting according to claim 3 is pullover with spanner, it is characterized in that the angle on the adjacent both sides of described regular polygon button is 120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200283674U CN201179635Y (en) | 2008-02-22 | 2008-02-22 | Spanner sleeve head for stretch-draw lock member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200283674U CN201179635Y (en) | 2008-02-22 | 2008-02-22 | Spanner sleeve head for stretch-draw lock member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201179635Y true CN201179635Y (en) | 2009-01-14 |
Family
ID=40249138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200283674U Expired - Fee Related CN201179635Y (en) | 2008-02-22 | 2008-02-22 | Spanner sleeve head for stretch-draw lock member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201179635Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392968A (en) * | 2016-11-30 | 2017-02-15 | 南京华阜信息科技有限公司 | Detachable internal hexagonal bolt spanner |
| CN109048741A (en) * | 2018-10-26 | 2018-12-21 | 周鹏 | A kind of hex nut stripping attachment |
-
2008
- 2008-02-22 CN CNU2008200283674U patent/CN201179635Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392968A (en) * | 2016-11-30 | 2017-02-15 | 南京华阜信息科技有限公司 | Detachable internal hexagonal bolt spanner |
| CN106392968B (en) * | 2016-11-30 | 2019-05-14 | 宁波佰特工具有限公司 | A kind of dismountable hexagon socket head cap screw spanner |
| CN109048741A (en) * | 2018-10-26 | 2018-12-21 | 周鹏 | A kind of hex nut stripping attachment |
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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: 20090114 Termination date: 20130222 |