CN2924135Y - Torsion-shear type stopping anti-theft bolt connection pair - Google Patents
Torsion-shear type stopping anti-theft bolt connection pair Download PDFInfo
- Publication number
- CN2924135Y CN2924135Y CN 200620014195 CN200620014195U CN2924135Y CN 2924135 Y CN2924135 Y CN 2924135Y CN 200620014195 CN200620014195 CN 200620014195 CN 200620014195 U CN200620014195 U CN 200620014195U CN 2924135 Y CN2924135 Y CN 2924135Y
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- China
- Prior art keywords
- nut
- packing ring
- bolt
- oblique
- helical teeth
- 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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- Bolts, Nuts, And Washers (AREA)
- Transmission Devices (AREA)
Abstract
A torsion-shear anti-loose theftproof bolt connection pair includes a nut 1, a washer 2 and a bolt 3. The nut 1 is screwed and connected with the bolt 3; the washer 2 is arranged between the nut 1 and the bolt head 31 of the bolt 3. The contact bottom surface between the nut 1 and the washer 2 is the oblique tooth bottom surface 11 which is provided with a central screw hole 112 and is formed by four wedge oblique surfaces 111 whose centers present radial to the peripheral corner top; the contact surface between the washer 2 and the nut 1 is the oblique tooth surface 21 which is provided with a central hole 22 and has the inosculated shape with the shape of the oblique tooth bottom surface 11; the oblique angle 113 of the nut 1 and the wedge oblique surface 111 of the washer 2 is more than the lifting angle of the thread and the oblique angle is 8 degrees; the oblique tooth bottom surface 11 of the nut 1 and the oblique surface 21 of the washer 2 are uniformly and respectively provided with 4 wedge oblique surfaces111 which have the same size and the same shape. The connection pair has the advantages of low cost and good theftproof effect, is widely used for the anti-loose and theftpoof of an electric steel tower, protection rails of the speedway, rails of the railway, bridges and vibration devices.
Description
Technical field
The utility model relates to a kind of anti-loose anti-theft auxiliary connection, especially a kind of nut, packing ring and bolt of comprising, and nut and bolt wire connection, packing ring is between nut and bolt head; The bottom surface that described nut contacts with packing ring is to form helical teeth that constitute, that have center screw bottom surface, radial a plurality of wedge shapes inclined-plane by its peripheral angles top of middle mind-set; Described packing ring and supporting nut surface of contact be, the anti-loose anti-theft auxiliary connection of the pitch face of the band mesopore that matches with described helical teeth bottom shape.
Background technique
The theft preventing method that the fastening piece link is commonly used mostly is the brill sky greatly and wears pin, the anti-revolution of nut fluting dress retaining needle roller, and the unit bolt nut draw-bore is assembled the back and is beaten methods such as tenon, and there is the operating procedure complexity in these class methods, and product structure is also complicated, defect of high cost; For solving this class problem, Chinese patent literature CN2675931 discloses a kind of safety attachment, form by supporting nut, nut and bolt, it is characterized in that: nut is an abnormity nut 1, be that it has regular hexagon periphery 7, the bottom surface that contacts with nut 2 is form helical teeth that constitute, that have center screw bottom surface, radial six wedge shape inclined-planes 8 by its peripheral angles top of middle mind-set, and the end face of this nut to be the dome 6 of sealing; Nut is an abnormity nut 2, be to be in its upper and lower surfaces with the supporting nut 1 or the surface of contact of bolt 5, with the suitable hollow pitch face 14 in helical teeth bottom surface that constitute, that have center screw, radial six the wedge shape inclined-planes of abnormity nut 18, and with link 4 contacted another sides be circular planes, on this plane, has the vertical sharp bar 9 of single wedge surface by middle mind-set edge trend, single wedge surface direction of point bar 9 is in the front end that screws direction, and the periphery of nut 2 is the circle edge with non-axisymmetric loading and unloading notch 10; Bolt is a special shaped screw bolt, and promptly it has dome shape bolt head 11, and the bottom surface of the position, connecting part of this bolt head and screw rod is, has the disk 13 by the vertical sharp bar 9 of single wedge surface of middle mind-set edge trend, and single wedge surface direction of sharp bar 9 is in the front end that screws direction; Or the bolt head of this bolt is hexagon bolt head 12, and the bottom surface of the position, connecting part of this bolt head and screw rod is, with the hollow pitch face 14 of abnormity nut 2 adaptive, have helical teeth bottom surfaces 15 that radial six wedge shape inclined-planes constitute.Its advantage is to use in, the frequent environment of vibratory impulse big in difference variation can not get loose, and circumference nut edge is shaped on non-axisymmetric loading and unloading notch and has antitheft effect, and the hexagon nut of sealing dome can prevent that rainwater from invading and avoid corrosion.But there is the problem of three aspects in this safety attachment, the one, and the helical teeth surface of contact of this fastening piece discloses insufficient, when helical teeth surface of contact area was too small, during anti-nutting, the pitch face of nut can damage, and the thread of bolt can not damage, and nut can withdraw from the same old way; The 2nd, the helical teeth angle of nut is not required, if the helical teeth angle too small, thread can not damage, nut can withdraw from the same old way; If the helical teeth angle is excessive, then packing ring can rotate together along with nut, together withdraws from; The 3rd, the helical teeth bottom surface is divided into six parts, then every part of equal portions area is little, and nut withdraws from easily.
Summary of the invention
The technical problem that the utility model solves is to overcome above-mentioned shortcoming, and a kind of torsional type anti-loose anti-theft bolt connect sets of anti-loose anti-theft better effects if is provided.
The technical solution of the utility model is: add a profile gasket between the nut on the bolt, the bottom surface of nut is designed to the helical teeth bottom surface, the one side that packing ring is relative with the nut bottom surface is designed to the pitch face that matches with the nut bottom surface, according to the mechanics parallelogram law, lift angle when the angle of inclination of nuts and washers more than or equal to screw thread, and when the area of contact of nut and pad is equal to or greater than the area of contact of bolts and nuts, when applying opposite force to nut, screw thread and bolt part screw thread will be turned round and cut distortion, and can not swing offset and withdraw from, to reach antitheft purpose.
A kind of torsional type anti-loose anti-theft bolt connect sets provided by the utility model comprises nut, packing ring and bolt, nut and bolt wire connection, and packing ring is between nut and bolt head; The bottom surface that described nut contacts with packing ring is to form helical teeth that constitute, that have center screw bottom surface, radial a plurality of wedge shapes inclined-plane by its peripheral angles top of middle mind-set; Described packing ring and supporting nut surface of contact are, the pitch face of the band mesopore that matches with described helical teeth bottom shape, the angle of inclination of nuts and washers is greater than the lift angle of screw thread, and the angle of inclination is the 6-9 degree, and the helical teeth bottom surface of nut and the pitch face of packing ring are divided into 3-5 part; The area of the area of the helical teeth bottom surface of nut and the pitch face of packing ring is all greater than the developed area of thread.
Described optimum tilt angle is 8 degree.
The best of the helical teeth bottom surface of described nut and the pitch face of packing ring is divided into 4 parts.
Anti-skid rack by middle mind-set edge directive is arranged on the described packing ring one side relative with the bolt head bottom surface.
Anti-skid rack A by directive edge, center is arranged in described bolt head bottom surface.
Described nut is five sides, six sides or all directions nut.
The diameter of described packing ring is less than contact with it diameter of portion of nut.
The utility model is owing to adopted the lift angle of the angle of inclination of nuts and washers greater than screw thread, and the angle of inclination is the 6-9 degree, the structure that the helical teeth bottom surface of nut and the pitch face of packing ring are divided into 3-5 part, behind clockwise fastening nut, during another mistake hour hands swivel nut, the screw thread of screw bolt and nut can be subjected to the power of two different amount, the screw thread desire can take place upwards, and the downward displacement of inclination flank of tooth desire, a pair of like this contradiction power when the area of the pitch face of the area of the helical teeth bottom surface of nut and packing ring during all greater than the developed area of thread, can make the distortion of screw thread generation retrospective and produces stripped thread, then nut can revolve, and reaches antitheft better purpose.
Description of drawings
Fig. 1: be a kind of embodiment's of the present utility model three-dimensional decomposition texture schematic representation;
Fig. 2: be the perspective view at another visual angle of nut in the utility model;
Fig. 3: be the perspective view at another visual angle of packing ring in the utility model;
Fig. 4: be packing ring back side plane structural representation shown in Figure 3;
Fig. 5: be A-A cross-sectional schematic among Fig. 4.
Embodiment
See also Fig. 1 to Fig. 5, a kind of torsional type anti-loose anti-theft bolt connect sets comprises six square nuts 1, packing ring 2 and bolt 3, nut 1 and bolt 3 wire connections, and packing ring 2 is between the bolt head 31 of nut 1 and bolt 3; The bottom surface that described nut 1 contacts with packing ring 2 is, forms the helical teeth bottom surface 11 that radial 4 wedge shape inclined-planes are 111 that constitute, have center screw 112 by its peripheral angles top of middle mind-set; Described packing ring 2 with the surface of contact of nut 1 is, the pitch face 21 of the band mesopore 22 that matches with described helical teeth bottom surface 11 shapes, the angle of inclination 113 on nut 1 and packing ring 2 wedge shape inclined-planes 111 is greater than the lift angle of screw thread, and described angle of inclination is 8 degree, is furnished with 4 sizes, wedge shape inclined-plane 111 that shape is identical on the helical teeth bottom surface 11 of nut 1 and the pitch face 21 of packing ring 2.
Through test, above-mentioned angle of inclination 113 can be between 6 to 9 degree, and its optimum value is 8 degree.The helical teeth bottom surface 11 of described nut 1 can be provided with 3-5 the wedge shape inclined-plane 111 big or small, that shape is identical with the pitch face 21 of packing ring 2, and its optimum number is 4.The diameter of described packing ring 2 is slightly less than the diameter of nut 1 and helical teeth bottom surface 11; The area of the area of the helical teeth bottom surface 11 of nut 1 and the pitch face 21 of packing ring 2 is all greater than the developed area of thread.
Several anti-skid racks 23 by middle mind-set edge directive are arranged on described packing ring 2 one side relative with bolt head 31 bottom surfaces; Anti-skid rack A311 by directive edge, center is also arranged in described bolt head 31 bottom surfaces.Anti-skid rack 23 and anti-skid rack A311 can increase the anti-skidding friction to connected piece (not shown) surface.
Above-mentioned nut 1 also can be designed to five sides, all directions nut except that can being designed to six square nuts.
Claims (7)
1, a kind of torsional type anti-loose anti-theft bolt connect sets comprises nut, packing ring and bolt, nut and bolt wire connection, and packing ring is between nut and bolt head; The bottom surface that described nut contacts with packing ring is to form helical teeth that constitute, that have center screw bottom surface, radial a plurality of wedge shapes inclined-plane by its peripheral angles top of middle mind-set; Described packing ring and supporting nut surface of contact be, the pitch face of the band mesopore that matches with described helical teeth bottom shape, and it is characterized in that: the angle of inclination of nuts and washers is greater than the lift angle of screw thread, and the angle of inclination is the 6-9 degree; The helical teeth bottom surface of nut and the pitch face of packing ring are divided into 3-5 part; The area of the area of the helical teeth bottom surface of nut and the pitch face of packing ring is all greater than the developed area of thread.
2, torsional type anti-loose anti-theft bolt connect sets according to claim 1 is characterized in that: described optimum tilt angle is 8 degree.
3, torsional type anti-loose anti-theft bolt connect sets according to claim 1 and 2 is characterized in that: the best of the helical teeth bottom surface of described nut and the pitch face of packing ring is divided into 4 parts.
4, torsional type anti-loose anti-theft bolt connect sets according to claim 1 is characterized in that: the anti-skid rack by middle mind-set edge directive is arranged on the described packing ring one side relative with the bolt head bottom surface.
5, according to claim 1 or 4 described torsional type anti-loose anti-theft bolt connect sets, it is characterized in that: the anti-skid rack A by directive edge, center is arranged in described bolt head bottom surface.
6, torsional type anti-loose anti-theft bolt connect sets according to claim 1 is characterized in that: described nut is five sides, six sides or all directions nut.
7, torsional type anti-loose anti-theft bolt connect sets according to claim 1 is characterized in that: the diameter of described packing ring is less than contact with it diameter of portion of nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620014195 CN2924135Y (en) | 2006-06-09 | 2006-06-09 | Torsion-shear type stopping anti-theft bolt connection pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620014195 CN2924135Y (en) | 2006-06-09 | 2006-06-09 | Torsion-shear type stopping anti-theft bolt connection pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2924135Y true CN2924135Y (en) | 2007-07-18 |
Family
ID=38260567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620014195 Expired - Fee Related CN2924135Y (en) | 2006-06-09 | 2006-06-09 | Torsion-shear type stopping anti-theft bolt connection pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2924135Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197803A1 (en) * | 2015-06-11 | 2016-12-15 | 刘凤翼 | Self-tightening nut and bolt fastener |
| CN106286558A (en) * | 2015-06-11 | 2017-01-04 | 刘凤翼 | A kind of from jack panel, bolt fastener |
-
2006
- 2006-06-09 CN CN 200620014195 patent/CN2924135Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197803A1 (en) * | 2015-06-11 | 2016-12-15 | 刘凤翼 | Self-tightening nut and bolt fastener |
| CN106286558A (en) * | 2015-06-11 | 2017-01-04 | 刘凤翼 | A kind of from jack panel, bolt fastener |
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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 |