CN110056623B - Track nut with variable height protection device - Google Patents
Track nut with variable height protection device Download PDFInfo
- Publication number
- CN110056623B CN110056623B CN201910341544.7A CN201910341544A CN110056623B CN 110056623 B CN110056623 B CN 110056623B CN 201910341544 A CN201910341544 A CN 201910341544A CN 110056623 B CN110056623 B CN 110056623B
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- China
- Prior art keywords
- nut
- opening side
- height
- sliding chutes
- threaded hole
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a track nut with a height-variable protection device, which comprises a nut body, an inner bushing, a magnet piece and steel balls, wherein a plurality of sliding chutes with arc-shaped sections are arranged on the inner wall of a threaded hole of the nut body, the sliding chutes are positioned at the position of one end of the nut body close to the end part, the radial depth of the sliding chutes is gradually increased along the direction opposite to the thread direction of the threaded hole so as to form a shallow opening side and a deep opening side, the axial height of the sliding chutes is gradually reduced from the deep opening side to the shallow opening side, the magnet piece is fixed at the end part of the deep opening side, the steel balls are positioned in the sliding chutes, the inner bushing is inserted into the threaded hole and seals the opening of the sliding chute, and the steel balls are limited to move in the sliding chutes due to gravity factors by arranging the magnet piece at the deep opening side of the sliding chutes; through making the height of spout reduce from dark mouthful side to shallow mouthful side gradually, can reduce the space of shallow mouthful side when reducing the arc length of short spout to make the steel ball card tighter, prevent that the pine is effectual soon.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of nuts, in particular to the technical field of a track nut with a variable height type protection device.
[ background of the invention ]
The existing common rail nut and the bolt are generally matched by dimensional tolerance, namely the nut is screwed in one direction for fixing and screwed out in the other direction for loosening. The nut-bolt assembly with the structure is easy to steal when being used in outdoor tracks, and the safety of the track traffic is seriously influenced.
[ summary of the invention ]
The invention aims to solve the problems in the prior art and provides a track nut with a height-variable protection device, which is simple and convenient to install and can protect the nut from being unscrewed.
In order to achieve the purpose, the invention provides a track nut with a height-variable protection device, which comprises a nut body, an inner bushing, a magnet piece and a steel ball, wherein a plurality of sliding grooves with arc-shaped sections are arranged on the inner wall of a threaded hole of the nut body, the sliding grooves are positioned at one end of the nut body close to the end part, the radial depth of the sliding grooves is gradually increased along the direction opposite to the thread direction of the threaded hole so as to form a shallow opening side and a deep opening side, the axial height of the sliding grooves is gradually reduced from the deep opening side to the shallow opening side, the magnet piece is fixed at the end part of the deep opening side, the steel ball is positioned in the sliding grooves, and the inner bushing is inserted into the threaded hole and seals the opening of the sliding grooves.
Preferably, the sliding grooves are uniformly arranged around the nut body, and the number of the sliding grooves is 2-4.
Preferably, the axial height of the sliding groove is 1/4-1/3 of the nut body.
Preferably, the radial depths of a plurality of the sliding chutes are uniform or nonuniform.
Preferably, the arc lengths of a plurality of the sliding chutes are consistent or inconsistent.
Preferably, one side of the magnet piece, which is close to the steel balls, is provided with an upper inclined surface and a lower inclined surface, the upper inclined surface and the lower inclined surface are converged to form a notch, and the deepest part of the notch is positioned in the center of the magnet piece.
Preferably, the inner bushing is a cylinder with a through hole in the center, the outer diameter of the inner bushing is matched with the inner diameter of the threaded hole, and the height of the inner bushing is not larger than that of the threaded hole.
The invention has the beneficial effects that: according to the invention, the magnet piece is arranged at the deep opening side of the chute to attract the steel ball, so that the steel ball is limited to move in the chute due to gravity, and the nut is prevented from being blocked at the shallow opening side in advance due to large oscillation caused by transportation and other external reasons before use, so that the nut cannot be used; the gap between the magnet piece and the steel ball is increased by arranging the notch in the magnet piece, so that the screw rod can drive the steel ball to move along the sliding groove more easily; through making the height of spout reduce from dark mouthful side to shallow mouthful side gradually, can reduce the space of shallow mouthful side when reducing the arc length of short spout to make the steel ball card tighter, prevent that the pine is effectual soon.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a front view of a track nut with a variable height guard of the present invention;
FIG. 2 is a top cross-sectional view of a track nut with a high profile guard of the present invention;
FIG. 3 is a front sectional view of a track nut with a variable height type guard of the present invention;
in the figure: 1-nut body, 11-threaded hole, 12-chute, 121-shallow mouth side, 122-deep mouth side, 2-inner bushing, 3-magnet piece, 31-notch and 4-steel ball.
[ detailed description ] embodiments
Referring to fig. 1 to 3, the track nut with the variable height protection device of the invention comprises a nut body 1, an inner bushing 2, a magnet piece 3 and steel balls 4, wherein a plurality of sliding chutes 12 with arc-shaped cross sections are arranged on the inner wall of a threaded hole 11 of the nut body 1, the sliding chutes 12 are positioned at one end of the nut body 1 close to the end part, the radial depth of the sliding chutes is gradually increased along the direction opposite to the thread direction of the threaded hole 11 so as to form a shallow opening side 121 and a deep opening side 122, the axial height of the sliding chutes 12 is gradually reduced from the deep opening side 122 to the shallow opening side 121, the magnet piece 3 is fixed at the end part of the deep opening side 122, the steel balls 4 are positioned inside the sliding chutes 12, the inner bushing 2 is inserted into the threaded hole 11 and seals the opening of the sliding chutes 12, the sliding chutes 12 are uniformly arranged around the nut body 1, the number of the sliding chutes 12 is 2 to 4, and the axial height of the sliding chutes 12 is 1/4 to 1/3 of the nut body 1, the radial depth of a plurality of spout is unanimous or inconsistent, a plurality of the arc length of spout is unanimous or inconsistent, magnet piece 3 is close to one side of steel ball 4 and is equipped with inclined plane and lower inclined plane, last inclined plane and lower inclined plane meet and form notch 31, notch 31 deepest be located the center of magnet piece 3, interior bush 2 is the cylinder that the central authorities have the through-hole, the external diameter of interior bush 2 suits with the internal diameter of screw hole 11, the height of interior bush 2 is not more than the height of screw hole 11.
The working process of the invention is as follows:
initially, due to the attraction of the magnet pieces 3, the steel balls 4 are attracted in the recesses 31 of the magnet pieces 3 in the deep opening side 122 of the slide groove 12. When the nut body 1 is screwed gradually in the forward direction, the screw pushes the inner bushing 2 out of the threaded hole 11 gradually, the inner bushing 2 is replaced, and the steel balls 4 are prevented from being pulled out of the nut body 1. When the nut body 1 is loosened gradually in the reverse direction, the steel ball 4 is driven by the screw to move from the deep opening side 122 to the shallow opening side 121 along the chute 12 until being clamped in the shallow opening side 121, so that the nut body 1 can not be screwed in any more, and the purpose of loosening the nut can not be achieved.
According to the invention, the magnet piece is arranged at the deep opening side of the chute to attract the steel ball, so that the steel ball is limited to move in the chute due to gravity, and the nut is prevented from being blocked at the shallow opening side in advance due to large oscillation caused by transportation and other external reasons before use, so that the nut cannot be used; the gap between the magnet piece and the steel ball is increased by arranging the notch in the magnet piece, so that the screw rod can drive the steel ball to move along the sliding groove more easily; through making the height of spout reduce from dark mouthful side to shallow mouthful side gradually, can reduce the space of shallow mouthful side when reducing the arc length of short spout to make the steel ball card tighter, prevent that the pine is effectual soon.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides a track nut of high type protection device is become in area which characterized in that: the nut comprises a nut body (1), an inner bushing (2), a magnet piece (3) and steel balls (4), wherein a plurality of sliding grooves (12) with arc-shaped cross sections are arranged on the inner wall of a threaded hole (11) of the nut body (1), the sliding grooves (12) are positioned at one end of the nut body (1) and close to the end part, the radial depth of each sliding groove is gradually increased along the direction of the thread of the threaded hole (11) to form a shallow opening side (121) and a deep opening side (122), the axial height of each sliding groove (12) is gradually reduced from the deep opening side (122) to the shallow opening side (121), the magnet piece (3) is fixed at the end part of the deep opening side (122), the steel balls (4) are positioned inside the sliding grooves (12), the inner bushing (2) is inserted into the threaded hole (11) and seals the opening of the sliding groove (12), and an upper inclined plane and a lower inclined plane are arranged on one side, close to the steel balls (4), of the magnet piece (3), the upper inclined plane and the lower inclined plane are intersected to form a notch (31), and the deepest part of the notch (31) is positioned in the center of the magnet piece (3).
2. A track nut with a height-variable protector as claimed in claim 1, wherein: the nut body (1) is evenly encircleed in spout (12) set up, the quantity of spout (12) is 2 ~ 4.
3. A track nut with a height-variable protector as claimed in claim 1, wherein: the axial height of the sliding groove (12) is 1/4-1/3 of the nut body (1).
4. A track nut with a height-variable protector as claimed in claim 1, wherein: the radial depths of the plurality of sliding chutes are consistent or inconsistent.
5. A track nut with a height-variable protector as claimed in claim 1, wherein: the arc lengths of a plurality of the sliding chutes are consistent or inconsistent.
6. A track nut with a height-variable protector as claimed in claim 1, wherein: the inner bushing (2) is a cylinder with a through hole in the center, the outer diameter of the inner bushing (2) is matched with the inner diameter of the threaded hole (11), and the height of the inner bushing (2) is not larger than that of the threaded hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910341544.7A CN110056623B (en) | 2019-04-26 | 2019-04-26 | Track nut with variable height protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910341544.7A CN110056623B (en) | 2019-04-26 | 2019-04-26 | Track nut with variable height protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110056623A CN110056623A (en) | 2019-07-26 |
| CN110056623B true CN110056623B (en) | 2022-04-15 |
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ID=67320924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910341544.7A Active CN110056623B (en) | 2019-04-26 | 2019-04-26 | Track nut with variable height protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110056623B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2786347Y (en) * | 2005-04-22 | 2006-06-07 | 刘建华 | Anti-theft locknut |
| CN2890462Y (en) * | 2006-05-19 | 2007-04-18 | 佛山自生电力配件制造有限公司 | Improved structure of anti-theft screw nut |
| CN2893283Y (en) * | 2006-05-19 | 2007-04-25 | 佛山自生电力配件制造有限公司 | Structural improvement of tensile antitheft nut |
| CN2911290Y (en) * | 2006-06-12 | 2007-06-13 | 刘建华 | Antitheft anti-loosen nuts |
| CN201003538Y (en) * | 2007-01-22 | 2008-01-09 | 王增权 | Theft-proof nut |
| CN201284785Y (en) * | 2008-11-06 | 2009-08-05 | 南京凯驰标准件有限公司 | Anti-loosening hex nut |
| CN201351666Y (en) * | 2009-02-13 | 2009-11-25 | 江海春 | Anti-theft lock nut |
| CN202468654U (en) * | 2012-03-01 | 2012-10-03 | 俞宜洪 | Anti-theft nut |
| CN203230715U (en) * | 2013-04-28 | 2013-10-09 | 河北邦德威电力器材有限公司 | Novel ball-typed anti-theft nut |
| CN204553505U (en) * | 2015-03-21 | 2015-08-12 | 河南四达电力设备股份有限公司 | A kind of anti-theft nut with locking baffle plate |
-
2019
- 2019-04-26 CN CN201910341544.7A patent/CN110056623B/en active Active
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| Publication number | Publication date |
|---|---|
| CN110056623A (en) | 2019-07-26 |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No.33, shenjiadai, xuyouche village, Qinshan street, Haiyan County, Jiaxing City, Zhejiang Province, 314300 Applicant after: Jiaxing Haijin Hardware Technology Co.,Ltd. Address before: No.33, shenjiadai, xuyouche village, Qinshan street, Haiyan County, Jiaxing City, Zhejiang Province, 314300 Applicant before: JIAXING HAIJIN HARDWARE TECHNOLOGY Co.,Ltd. |
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