CN203822805U - Combined bolt - Google Patents
Combined bolt Download PDFInfo
- Publication number
- CN203822805U CN203822805U CN201420261246.XU CN201420261246U CN203822805U CN 203822805 U CN203822805 U CN 203822805U CN 201420261246 U CN201420261246 U CN 201420261246U CN 203822805 U CN203822805 U CN 203822805U
- Authority
- CN
- China
- Prior art keywords
- screw
- contacting part
- contact part
- bolt
- 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
- 238000000034 method Methods 0.000 abstract description 10
- 238000006748 scratching Methods 0.000 abstract description 3
- 230000002393 scratching effect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 8
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses a combined bolt, and aims to provide a combined bolt used for fixing a relay on a mounting standard piece. The key points of the technical scheme are that a contacting part is arranged at the other end, opposite to a bolt cap, of a bolt rod; the cross section, in the axial direction of the bolt rod, of the contacting part is arranged in a tapered structure, the outer lateral wall of the contacting part is arranged in a smooth structure, the other end, opposite to the bolt rod, of the contacting part is arranged in a fillet structure, and the axial height of contacting part is greater than the outer diameter of the bolt rod. The contacting part provided with the cross section in the tapered structure facilitates increasing the contact area of the contacting part and a V-shaped sliding groove and improving the mounting stability; the outer lateral wall of the contacting part is smooth and free from threads, a fillet is arranged at the end part of the contacting part, and the height of the contacting part is greater than the outer diameter of the bolt rod, so that the combined bolt is effectively prevented from scratching and damaging the V-shaped sliding groove in the assembly process to affect the appearance of the V-shaped sliding groove, and is prevented from affecting the fastness of the bolt mounted at the same position next time.
Description
Technical field
The utility model relates to a kind of screw, and more particularly, it relates to a kind of Combined type screw.
Background technique
Screw is to utilize the inclined-plane circular rotating of object and physics and the mathematical principle of frictional force, the by easy stages instrument of fastening implements parts.Conventionally relay is fixed on reference for installation part and often adopts screw, and the assembly department by screw through relay makes, in V-arrangement chute that the head of screw conflicts on reference for installation part (as shown in Figure 2), to realize the fixed installation of relay on reference for installation part.
Because common on the market screw is not the taper that is sharp-pointed in the end of screw rod, that end face is the cylindric of plane structure, and be equipped with outside thread on the sidewall of tapered end, therefore in the time that screw fastening is in V-arrangement chute, outside thread on end and sidewall that it is sharp-pointed all can scratch the outer surface of V-arrangement chute, and its seamed edge place, columned end also can scratch the outer surface of V-arrangement chute, therefore the outer surface being scratched not only has influence on the outward appearance of reference for installation part, and can have influence on screw next time and be arranged on this locational firm degree.
Simultaneously for improving screw hard-wired steadiness, make screw be difficult for producing loosening, therefore also need the cooperation of pad lock and the fixing of relative position.And in prior art, the method that pad is manually worn in general employing, had both increased staff's workload, also make working efficiency lower.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of and is fixed on the Combined type screw on reference for installation part for relay.
For achieving the above object, the utility model provides following technological scheme: a kind of Combined type screw, comprise screw body and be located in the pad on screw body, described screw body comprises the screw cap and the screw rod that are integrative-structure setting, described screw rod is provided with contact part with respect to the other end of screw cap, described contact part is along the tapered structure setting of the axial cross section of screw rod, described contact part outer side wall is smooth structure setting, described contact part is the setting of rounding structure with respect to the other end of screw rod, the axial height of described contact part is greater than the external diameter of screw rod.
Between described screw cap and screw rod, be connected with connecting rod, described connecting rod external diameter is less than screw rod external diameter, and described connecting rod is provided with the straight knurling for preventing that pad from coming off.
Described pad is provided with protruding tooth limit with respect to the other end of screw cap, and described protruding tooth limit is positioned at the limit, two opposite sides of pad.
A kind of Combined type screw, comprise screw body and be located in the pad on screw body, described screw body comprises the screw cap and the screw rod that are integrative-structure setting, described screw rod is provided with contact part with respect to the other end of screw cap, described contact part is along the tapered structure setting of the axial cross section of screw rod, described contact part outer side wall is smooth structure setting, described contact part is the setting of rounding structure with respect to the other end of screw rod, and the axial height of described contact part is greater than the external diameter of screw rod.By adopting technique scheme, the contact part that the tapered structure of cross section arranges, is conducive to increase the area of contact of contact part and V-arrangement chute, improves installation steadiness; Contact part outer side wall is smooth without screw thread simultaneously, can effectively prevent that screw from scratching damage V-arrangement chute in assembly process, and affect the outward appearance of V-arrangement chute, also can not have influence on screw next time and be arranged on this locational firm degree simultaneously; And the end of contact part is provided with rounding, avoid the end that is conical contact part to be sharp state, in assembly process, scratch damage V-arrangement chute, and affect the outward appearance of V-arrangement chute, also can not have influence on screw next time and be arranged on this locational firm degree simultaneously; The height of contact part is greater than the external diameter of screw rod, can avoid contact part also not touch V-arrangement chute bottom time, outside thread on screw rod has first touched the sidewall of V-arrangement chute, and make outside thread scratch the outer surface that damages V-arrangement chute, can not have influence on screw next time yet and be arranged on this locational firm degree simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model Combined type screw;
Structural representation when Fig. 2 is prior art mounting screw.
Reference character: 1, screw body; 11, screw cap; 12, screw rod; 121, contact part; 13, connecting rod; 131, straight knurling; 2, pad; 21, protruding tooth limit; 3, relay; 4, reference for installation part; 41, V-arrangement chute.
Embodiment
With reference to Fig. 1, Fig. 2, the utility model Combined type screw embodiment is described further.
A kind of Combined type screw, comprise screw body 1 and be located in the pad 2 on screw body, described screw body 1 comprises the screw cap 11 and the screw rod 12 that are integrative-structure setting, described screw rod 12 is provided with contact part 121 with respect to the other end of screw cap 11, described contact part 121 is along the tapered structure setting of the axial cross section of screw rod 12, described contact part 121 outer side walls are smooth structure setting, described contact part 121 is the setting of rounding structure with respect to the other end of screw rod 12, and the axial height of described contact part 121 is greater than the external diameter of screw rod 12.The contact part 121 that the tapered structure of cross section arranges, is conducive to increase the area of contact of contact part 121 and V-arrangement chute 41, improves steadiness is installed; Contact part 121 outer side walls are smooth without screw thread simultaneously, can effectively prevent that screw from scratching damage V-arrangement chute 41 in assembly process, and affect the outward appearance of V-arrangement chute 41, also can not have influence on screw next time and be arranged on this locational firm degree simultaneously; And the end of contact part 121 is provided with rounding, avoid the end that is conical contact part 121 to be sharp state, in assembly process, scratch damage V-arrangement chute 41, and affect the outward appearance of V-arrangement chute 41, also can not have influence on screw next time and be arranged on this locational firm degree simultaneously; The height of contact part 121 is greater than the external diameter of screw rod 12, can avoid contact part 121 also not touch V-arrangement chute 41 bottom time, outside thread on screw rod 12 has first touched the sidewall of V-arrangement chute 41, and make outside thread scratch the outer surface that damages V-arrangement chute 41, can not have influence on screw next time yet and be arranged on this locational firm degree simultaneously.
Between described screw cap 11 and screw rod 12, be connected with connecting rod 13, described connecting rod 13 external diameters are less than screw rod 12 external diameters, and described connecting rod 13 is provided with the straight knurling 131 for preventing that pad 2 from coming off.After being arranged on connecting rod 13, pad 2 uses straight burr flat die roll, on connecting rod 13, process straight knurling 131, straight knurling 131 external diameters are a bit larger tham screw rod 12 external diameters, not only there is the effect that prevents that pad 2 from coming off, can also increase the obstruction of screw rod 12 rubbing contact in installation process, therefore strengthened the Peripheric locking power of screw in fastening process, improved steadiness when screw fastening connects, made screw be difficult for producing loosening.
Described pad 2 is provided with protruding tooth limit 21 with respect to the other end of screw cap 11, and described protruding tooth limit 21 is positioned at the limit, two opposite sides of pad 2.Be positioned at the soundness that protruding tooth limit 21 on pad 2 limits, two opposite sides is conducive to improve screw line ball, effectively avoid screw to produce loosening phenomenon.
Claims (3)
1. a Combined type screw, comprise screw body and be located in the pad on screw body, described screw body comprises the screw cap and the screw rod that are integrative-structure setting, it is characterized in that: described screw rod is provided with contact part with respect to the other end of screw cap, described contact part is along the tapered structure setting of the axial cross section of screw rod, described contact part outer side wall is smooth structure setting, described contact part is the setting of rounding structure with respect to the other end of screw rod, and the axial height of described contact part is greater than the external diameter of screw rod.
2. Combined type screw according to claim 1, is characterized in that: between described screw cap and screw rod, be connected with connecting rod, described connecting rod external diameter is less than screw rod external diameter, and described connecting rod is provided with the straight knurling for preventing that pad from coming off.
3. Combined type screw according to claim 1 and 2, is characterized in that: described pad is provided with protruding tooth limit with respect to the other end of screw cap, and described protruding tooth limit is positioned at the limit, two opposite sides of pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261246.XU CN203822805U (en) | 2014-05-21 | 2014-05-21 | Combined bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261246.XU CN203822805U (en) | 2014-05-21 | 2014-05-21 | Combined bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822805U true CN203822805U (en) | 2014-09-10 |
Family
ID=51478314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420261246.XU Expired - Fee Related CN203822805U (en) | 2014-05-21 | 2014-05-21 | Combined bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822805U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889268A (en) * | 2016-03-10 | 2016-08-24 | 天津市福厚盈科技有限公司 | Manufacturing method for novel screw |
| CN107314020A (en) * | 2017-08-25 | 2017-11-03 | 柳州市贵高物资有限责任公司 | The screw of attached packing ring |
| CN108331826A (en) * | 2018-03-30 | 2018-07-27 | 芜湖强振汽车紧固件有限公司 | A kind of Car Wheel Nut's structure and its assemble method |
| CN112346234A (en) * | 2020-11-20 | 2021-02-09 | 南通斯密特森光电科技有限公司 | Anti-deflection and anti-slip corner mirror device |
-
2014
- 2014-05-21 CN CN201420261246.XU patent/CN203822805U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889268A (en) * | 2016-03-10 | 2016-08-24 | 天津市福厚盈科技有限公司 | Manufacturing method for novel screw |
| CN107314020A (en) * | 2017-08-25 | 2017-11-03 | 柳州市贵高物资有限责任公司 | The screw of attached packing ring |
| CN108331826A (en) * | 2018-03-30 | 2018-07-27 | 芜湖强振汽车紧固件有限公司 | A kind of Car Wheel Nut's structure and its assemble method |
| CN112346234A (en) * | 2020-11-20 | 2021-02-09 | 南通斯密特森光电科技有限公司 | Anti-deflection and anti-slip corner mirror device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20160521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |