CN203051391U - Pre-tightening bolt with mounting function - Google Patents
Pre-tightening bolt with mounting function Download PDFInfo
- Publication number
- CN203051391U CN203051391U CN 201220629936 CN201220629936U CN203051391U CN 203051391 U CN203051391 U CN 203051391U CN 201220629936 CN201220629936 CN 201220629936 CN 201220629936 U CN201220629936 U CN 201220629936U CN 203051391 U CN203051391 U CN 203051391U
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- CN
- China
- Prior art keywords
- bolt
- bolt head
- spring
- screw
- mounting
- 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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Abstract
The utility model discloses a pre-tightening bolt with a mounting function. The bolt comprises a bolt head and a screw, wherein the bolt head is cylindrical and the side wall is provided with an annular mounting groove; the lower end face of the bolt head is provided with a step; an annular groove is arranged between the step and the edge of the lower end face of the bolt head; the upper end of the screw is a polished rod section, and the lower end of the screw is a threaded section; a spacer is sleeved on the polished rod section; a spring is connected between the spacer and the bolt head; and the upper end of the spring is clamped in the annular groove. The pre-tightening bolt with the mounting function is of a simple and rational structure; the bolt head which remains on a mounting surface is provided with the mounting groove after the bolt is mounted, so that other components can be mounted on the mounting surface, and convenience is brought to use; and when the bolt is connected with a nut, the spacer is butted against the surface of a part through the spring, so that the bolt head achieves a certain pressure, the phenomenon that the bolt rotates along with the nut is effectively avoided, and the working efficiency is increased.
Description
Technical field
The utility model relates to a kind of mechanical fastener, is specially a kind of pre-tensioned type bolt with installation function.
Background technique
Bolt is one of modal fastening piece, and it is made up of head and screw rod.It is cylindric that screw rod is, on have outside thread and can use with nut collocation.Screw bolt and nut uses jointly, can connect and fix two parts that have through hole.And existing bolt function is single, the fitting operation inconvenience, and when nut began to screw, bolt was followed nut easily and is rotated together, made nut disposablely not screw, and had prolonged the operating time, inefficiency.
The model utility content
The purpose of this utility model provides a kind of pre-tensioned type bolt with installation function, single to solve bolt function traditional in the prior art, the fitting operation inconvenience, when nut begins to screw, bolt is followed nut easily and is rotated together, make nut disposablely not screw, prolonged the operating time, ineffective problem.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of pre-tensioned type bolt with installation function, include bolt head and screw rod, it is characterized in that: the cylindrical and sidewall of described bolt head is provided with annular mounting groove, described bolt head lower end surface is provided with step, is provided with annular groove between the edge of described step and bolt head lower end surface, and described screw rod upper end is the polished rod section, the lower end is thread section, be with pad on the described polished rod section, be connected with spring between described pad and the bolt head, described spring upper end is clamped in the annular groove.
Described a kind of pre-tensioned type bolt with installation function, it is characterized in that: the groove bottom of described annular mounting groove is curved.
The beneficial effects of the utility model are:
The utility model is simple and reasonable, employing arranges the design of annular mounting groove at the bolt head sidewall, the bolt head that bolt is stayed on the attachment face after installing has mounting groove, therefore can miscellaneous part be installed at attachment face, the convenient use, also can adjacent bolt be locked by iron wire or similar fastener, improve the resistance to shock of bolt; Employing connects the design of pad by spring in the bolt head lower end surface, when bolts and nuts connect, pad pushes against at part surface by spring, make bolt head obtain certain pressure, along with screwing of nut, this pressure is more big, has prevented that effectively bolt from following the generation of nut rotation phenomenon, has improved working efficiency.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of pre-tensioned type bolt with installation function, include bolt head 1 and screw rod 2, the cylindrical and sidewall of bolt head 1 is provided with annular mounting groove 3, and bolt head 1 lower end surface is provided with step 4, be provided with annular groove 5 between the edge of step 4 and bolt head 1 lower end surface, screw rod 2 upper ends are polished rod section 6, and the lower end is thread section 7, is with pad 8 on the polished rod section 6, be connected with spring 9 between pad 8 and the bolt head 1, spring 9 upper ends are clamped in the annular groove 5.
The groove bottom of annular mounting groove 3 is curved.
Claims (2)
1. pre-tensioned type bolt with installation function, include bolt head and screw rod, it is characterized in that: the cylindrical and sidewall of described bolt head is provided with annular mounting groove, described bolt head lower end surface is provided with step, is provided with annular groove between the edge of described step and bolt head lower end surface, and described screw rod upper end is the polished rod section, the lower end is thread section, be with pad on the described polished rod section, be connected with spring between described pad and the bolt head, described spring upper end is clamped in the annular groove.
2. a kind of pre-tensioned type bolt with installation function according to claim 1, it is characterized in that: the groove bottom of described annular mounting groove is curved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629936 CN203051391U (en) | 2012-11-25 | 2012-11-25 | Pre-tightening bolt with mounting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629936 CN203051391U (en) | 2012-11-25 | 2012-11-25 | Pre-tightening bolt with mounting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051391U true CN203051391U (en) | 2013-07-10 |
Family
ID=48734349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220629936 Expired - Fee Related CN203051391U (en) | 2012-11-25 | 2012-11-25 | Pre-tightening bolt with mounting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118816A (en) * | 2015-08-25 | 2015-12-02 | 无锡新洁能股份有限公司 | Power terminal and power module employing power terminal |
| CN108386620A (en) * | 2018-04-28 | 2018-08-10 | 中铁隆昌铁路器材有限公司 | A kind of external conduit and conduit mechanism |
-
2012
- 2012-11-25 CN CN 201220629936 patent/CN203051391U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118816A (en) * | 2015-08-25 | 2015-12-02 | 无锡新洁能股份有限公司 | Power terminal and power module employing power terminal |
| CN108386620A (en) * | 2018-04-28 | 2018-08-10 | 中铁隆昌铁路器材有限公司 | A kind of external conduit and conduit mechanism |
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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: 20130710 Termination date: 20131125 |