CN201394809Y - Screw positioner - Google Patents
Screw positioner Download PDFInfo
- Publication number
- CN201394809Y CN201394809Y CN2009200704216U CN200920070421U CN201394809Y CN 201394809 Y CN201394809 Y CN 201394809Y CN 2009200704216 U CN2009200704216 U CN 2009200704216U CN 200920070421 U CN200920070421 U CN 200920070421U CN 201394809 Y CN201394809 Y CN 201394809Y
- Authority
- CN
- China
- Prior art keywords
- overcoat
- holding claw
- liner
- sliding sleeve
- screw
- 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 - Lifetime
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The utility model provides a screw positioner. The screw positioner comprises an outer sleeve, an inner lining, a sliding sleeve, a holding claw positioning sleeve, a holding claw, a first spring, a second spring, a locking nut and a baffle ring, wherein the holding claw can be stretched or furled under the combined action of the holding claw positioning sleeve and the sliding sleeve. When in use,the screw positioner can tightly grasp a rod of a screw to vertically fix the screw on a screwdriver, so as to realize the screwing of the screw by single hand, thereby increasing the operating speedand improving the working efficiency; moreover, the device is safe and reliable.
Description
Technical field
The utility model relates to a kind of hand-held tool, particularly a kind of screw positioner.
Background technology
Screwdriver is widely used in fastening various screw, and the screwdriver of prior art generally comprises handle and batch bar that fuses.When being screwed object (as hard wood, sheet metal, plastic-steel, decoration with keel etc.), need pinch screw with two fingers of a hand, then with the another hand spinning screwdriver of exerting oneself, very inconvenient during use, screw departs from easily firmly the time, not doing a good job to injure finger, and safety is difficult to ensure.Especially as using the tapping screw fixation workpiece on plank, use hand steered screw, be easy to the screw deflection, can't fix, even do not do a good job and to injure finger.
The utility model content
The purpose of this utility model in order to solve the problems referred to above that prior art exists, provides a kind of screw positioner exactly.
The technical solution of the utility model is: a kind of screw positioner comprises:
Overcoat, its front end is provided with necking, and is less corresponding to the internal diameter of necking, and forms an interior step in pipe, and the inwall of overcoat back segment is provided with many axial slides;
Liner is hollow tubular structure spare, and the liner front portion slides in the overcoat, and the rear portion is exposed at outside the overcoat;
Sliding sleeve is arranged in the overcoat, and its rear portion is sleeved on the liner and can moves forward and backward along liner, and its front portion circumferentially evenly is provided with three slotted eyes;
The holding claw positioning sleeve, it is arranged in the overcoat and is sleeved on the front portion of sliding sleeve, the front end of holding claw positioning sleeve is pressed on the interior step of overcoat, the holding claw positioning sleeve circumferentially evenly be provided with three slotted eyes;
Holding claw, comprise three independently elasticity corpus unguis, three corpus unguis pass from three slotted eyes of holding claw positioning sleeve and three slotted eyes of sliding sleeve respectively, and its outer end is stuck in outside the holding claw positioning sleeve, the inner is stretched in the sliding sleeve, and holding claw can be opened under the acting in conjunction of holding claw positioning sleeve and sliding sleeve or draw in;
First spring is sleeved on the liner, and its front end is pressed on the sliding sleeve;
Second spring is sleeved on the sliding sleeve, and its front end is pressed on the holding claw positioning sleeve;
Locking nut is connected the rear end of liner;
Baffle ring is inlaid in the inwall of overcoat rear end.
Described liner middle part is provided with and is used for the positioning slide that links to each other with chute sliding sleeve in the overcoat and at the inside and outside both sides formation undergauge step of this positioning slide, the liner rear end is provided with the male cone (strobilus masculinus) screw thread, and is provided with many shaft orientation opening grooves; The rear end of described first spring is pressed on the inner side step of liner; Described locking nut is provided with the inner conical surface screw thread and links to each other with the male cone (strobilus masculinus) screw thread of liner rear end by this inner conical surface screw thread.
The rear end of described sliding sleeve is provided with hole enlargement ring limit, and the external diameter on this hole enlargement ring limit and the internal diameter of overcoat are suitable, and the rear end of described second spring is pressed on the above-mentioned ring limit.
Screw positioner of the present utility model can be caught the pole of screw in use tightly, makes straight being fixed on the screwdriver of screw energy, thereby realizes singlehanded the turn of the screw, can improve service speed and operating efficiency, and safe and reliable.
Description of drawings
Fig. 1 is the structural representation of facing of the utility model screw positioner;
Fig. 2 is the sectional structure schematic diagram of the utility model screw positioner;
Fig. 3 is the decomposition texture schematic diagram of the utility model screw positioner;
Fig. 4 is the perspective view of the liner in the utility model;
Fig. 5 is the perspective view of the sliding sleeve in the utility model;
Fig. 6 is the perspective view of the holding claw positioning sleeve in the utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, Fig. 2, Fig. 3, screw positioner of the present utility model comprises overcoat 2, liner 3, sliding sleeve 4, holding claw positioning sleeve 5, holding claw 6, first spring 7, second spring 8, locking nut 9 and baffle ring 10.Screw positioner of the present utility model generally cooperates screwdriver 1 to use.
The front end 21 of overcoat 2 is provided with necking, and is less corresponding to the internal diameter of necking, and forms an interior step in pipe, and the inwall of overcoat back segment is provided with many axial slides 22.Cooperation is referring to Fig. 4, liner 3 in the utility model is a hollow tubular structure spare, its internal diameter is big or small suitable with batch bar, the liner front portion slides in the overcoat 2, the rear portion is exposed at outside the overcoat, and liner middle part is provided with and is used for the positioning slide 31 that links to each other with chute sliding sleeve in the overcoat and at the inside and outside both sides formation undergauge step of this positioning slide, liner rear end 32 is provided with the male cone (strobilus masculinus) screw thread, and being provided with many shaft orientation opening grooves 33, batch bar 1 is located in the liner 3.
Cooperation is referring to Fig. 5, sliding sleeve 4 in the utility model is arranged in the overcoat 2, its rear portion is sleeved on the liner 3 and can moves forward and backward along liner, its front portion circumferentially evenly is provided with three slotted eyes 41, slotted eye 41 plays the effect of holding claw positioning and guiding, the rear end of sliding sleeve is provided with hole enlargement ring limit 42, and the external diameter on this hole enlargement ring limit and the internal diameter of overcoat are suitable.
Cooperation is referring to Fig. 6, and the holding claw positioning sleeve 5 in the utility model is arranged in the overcoat 2 and is sleeved on the front portion of sliding sleeve, and the front end of holding claw positioning sleeve is pressed on the interior step of overcoat, the holding claw positioning sleeve circumferentially evenly be provided with three slotted eyes 51.
Holding claw 6 comprises three independently elasticity corpus unguis, three corpus unguis pass from three slotted eyes 51 of holding claw positioning sleeve and three slotted eyes 41 of sliding sleeve respectively, its outer end is stuck in the outside of holding claw positioning sleeve 5, and the inner is stretched in the sliding sleeve 4, and holding claw can be opened under the acting in conjunction of holding claw positioning sleeve and sliding sleeve or draw in.
Second spring 8 is sleeved on the sliding sleeve, and its front end is pressed on the holding claw positioning sleeve 5, and the rear end is pressed on the ring limit 42 of sliding sleeve 4.
Locking nut 9 is provided with the inner conical surface screw thread and links to each other with the male cone (strobilus masculinus) screw thread of liner rear end 32 by this inner conical surface screw thread.
The operation principle of screw positioner of the present utility model can be described as follows in conjunction with Fig. 2 Fig. 3: when needs trip bolt a, band screwdriver 1 is inserted in the liner 3 of locator, and by locking nut 9 lockings, whole locator is fixed on batch bar.Mobile backward then overcoat 2, overcoat 2 drives holding claw positioning sleeve 5 and moves (compressing second spring 8 simultaneously) backward, holding claw positioning sleeve 5 drives holding claw 6 and opens, when overcoat 2 continues to move to the front end of sliding sleeve 4 and holding claw positioning sleeve 5 when inconsistent backward, sliding sleeve 4 also and then moves (compressing first spring 7 simultaneously) together backward, until exposing screwdriver bit, then screw a is contained on the screwdriver bit, unclamp overcoat 2, then under the elastic force effect of first spring 7 and second spring 8, sliding sleeve 4 and holding claw positioning sleeve 5 move forward simultaneously, thereby make holding claw 6 be held tightly the body of rod of screw a, straight being fixed on of screw a criticized on the bar, can singlehanded twist the operation of screw.In the process of twisting screw, because the workpiece that deepens continuously of screw makes overcoat 2 touch surface of the work, continue deeply to twist screw, overcoat 2 will be shunk back allow mobile, thereby unclamp holding claw 6, finally make screw a break away from the control of locator and finish the overall process that is screwed into workpiece.
Claims (3)
1. screw positioner is characterized in that comprising:
Overcoat, its front end is provided with necking, and is less corresponding to the internal diameter of necking, and forms an interior step in pipe, and the inwall of overcoat back segment is provided with many axial slides;
Liner is hollow tubular structure spare, and the liner front portion slides in the overcoat, and the rear portion is exposed at outside the overcoat;
Sliding sleeve is arranged in the overcoat, and its rear portion is sleeved on the liner and can moves forward and backward along liner, and its front portion circumferentially evenly is provided with three slotted eyes;
The holding claw positioning sleeve, it is arranged in the overcoat and is sleeved on the front portion of sliding sleeve, the front end of holding claw positioning sleeve is pressed on the interior step of overcoat, the holding claw positioning sleeve circumferentially evenly be provided with three slotted eyes;
Holding claw, comprise three independently elasticity corpus unguis, three corpus unguis pass from three slotted eyes of holding claw positioning sleeve and three slotted eyes of sliding sleeve respectively, and its outer end is stuck in outside the holding claw positioning sleeve, the inner is stretched in the sliding sleeve, and holding claw can be opened under the acting in conjunction of holding claw positioning sleeve and sliding sleeve or draw in;
First spring is sleeved on the liner, and its front end is pressed on the sliding sleeve;
Second spring is sleeved on the sliding sleeve, and its front end is pressed on the holding claw positioning sleeve;
Locking nut is connected the rear end of liner;
Baffle ring is inlaid in the inwall of overcoat rear end.
2. screw positioner according to claim 1, it is characterized in that: described liner middle part is provided with and is used for the positioning slide that links to each other with chute sliding sleeve in the overcoat and at the inside and outside both sides formation undergauge step of this positioning slide, the liner rear end is provided with the male cone (strobilus masculinus) screw thread, and is provided with many shaft orientation opening grooves; The rear end of described first spring is pressed on the inner side step of liner; Described locking nut is provided with the inner conical surface screw thread and links to each other with the male cone (strobilus masculinus) screw thread of liner rear end by this inner conical surface screw thread.
3. screw positioner according to claim 1 is characterized in that: the rear end of described sliding sleeve is provided with hole enlargement ring limit, and the external diameter on this hole enlargement ring limit and the internal diameter of overcoat are suitable, and the rear end of described second spring is pressed on the above-mentioned ring limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200704216U CN201394809Y (en) | 2009-04-15 | 2009-04-15 | Screw positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200704216U CN201394809Y (en) | 2009-04-15 | 2009-04-15 | Screw positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201394809Y true CN201394809Y (en) | 2010-02-03 |
Family
ID=41617304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200704216U Expired - Lifetime CN201394809Y (en) | 2009-04-15 | 2009-04-15 | Screw positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201394809Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108406665A (en) * | 2018-05-30 | 2018-08-17 | 长江师范学院 | A kind of screw installation method |
| CN108724074A (en) * | 2018-05-30 | 2018-11-02 | 长江师范学院 | A kind of electric screwdriver device |
-
2009
- 2009-04-15 CN CN2009200704216U patent/CN201394809Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108406665A (en) * | 2018-05-30 | 2018-08-17 | 长江师范学院 | A kind of screw installation method |
| CN108724074A (en) * | 2018-05-30 | 2018-11-02 | 长江师范学院 | A kind of electric screwdriver device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100203 Effective date of abandoning: 20090415 |