CN203051389U - Easy-to-disassemble preloaded bolt - Google Patents
Easy-to-disassemble preloaded bolt Download PDFInfo
- Publication number
- CN203051389U CN203051389U CN 201220629827 CN201220629827U CN203051389U CN 203051389 U CN203051389 U CN 203051389U CN 201220629827 CN201220629827 CN 201220629827 CN 201220629827 U CN201220629827 U CN 201220629827U CN 203051389 U CN203051389 U CN 203051389U
- Authority
- CN
- China
- Prior art keywords
- bolt
- bolt head
- section
- threaded rod
- disassemble
- 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
Images
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses an easy-to-disassemble preloaded bolt, which comprises a bolt head and a threaded rod. A step is arranged on the lower end face of the bolt head. A circular groove is formed between the step and the edge of the lower end face of the bolt head. The upper end of the threaded rod is a polished rod section, and the lower end of the threaded rod is a threaded section. A gasket is sleeved on the polished rod section. A spring is connected between the gasket and the bolt head. The upper end of the spring is clamped in the circular groove. A shallow groove parallel to the axis of the threaded rod is formed in the threaded section. The preloaded bolt is simple in structure and convenient to use; the phenomenon that the bolt rotates along with a nut is effectively prevented, and the working efficiency is improved; and by the design of the shallow groove formed in the threaded section of the threaded rod, when the bolt which is rusted is difficult to disassemble, lubricating oil can be added from the shallow groove, so that disassembly operation is effectively facilitated.
Description
Technical field
The utility model relates to a kind of mechanical fastener, is specially the quick detachable bolt of a kind of pre-tensioned type.
Background technique
Bolt is widely used in the connection between the part as mechanical fastener.Generally, can the bolt head on the screw rod be fixed by spanner when screwing nut, when nut begins to screw, be unlikely to make screw rod and then to rotate like this.And under the operating conditions that has, such as the aerial power equipment of height, wherein also use bolt connection piece, this moment inconvenient operation, usually be not easy to vacate two hands and turn round a bolt simultaneously, when nut began to screw, bolt was followed nut easily and is rotated together like this, make nut disposablely not screw, prolonged the operating time, inefficiency, and after long-time the use, bolt is fixed together with nut because getting rusty easily, and dismounting is convenient inadequately.
The model utility content
The purpose of this utility model provides the quick detachable bolt of a kind of pre-tensioned type, to solve bolt traditional in the prior art in use, following nut easily rotates together, make nut disposablely not screw, prolong the operating time, influenced working efficiency, and after long-time the use, bolt is fixed together with nut because getting rusty easily, dismantles inadequately problem easily.
For achieving the above object, the technical solution adopted in the utility model is:
The quick detachable bolt of a kind of pre-tensioned type, include bolt head and screw rod, it is characterized in that: described bolt head lower end surface is provided with step, be provided with annular groove between the edge of described step and bolt head lower end surface, described screw rod upper end is the polished rod section, and 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, and described thread section is provided with the shallow slot parallel with screw axis.
The quick detachable bolt of described a kind of pre-tensioned type is characterized in that: described bolt head is cylindrical no bevel bolt head.
The quick detachable bolt of described a kind of pre-tensioned type, it is characterized in that: described shallow slot is at least one, and the shallow slot degree of depth is 1-3mm.
The beneficial effects of the utility model are:
The utility model is simple in structure, easy to use, employing connects the design of pad by spring in the bolt head lower end surface, when bolts and nuts connected, pad pushed against at part surface by spring, made 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; Employing arranges the design of shallow slot in the screw flight section, when not quick detachable because get rusty when bolt, can add lubricant oil from shallow slot, thereby make things convenient for disassembling section effectively.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the quick detachable bolt of a kind of pre-tensioned type, include bolt head 1 and screw rod 2, bolt head 1 lower end surface is provided with step 3, is provided with annular groove 4 between the edge of step 3 and bolt head 1 lower end surface, screw rod 2 upper ends are polished rod section 5, the lower end is thread section 6, is with pad 7 on the polished rod section 5, is connected with spring 8 between pad 7 and the bolt head 1, spring 8 upper ends are clamped in the annular groove 4, and thread section 6 is provided with the shallow slot 9 parallel with screw rod 2 axis.
Claims (3)
1. quick detachable bolt of pre-tensioned type, include bolt head and screw rod, it is characterized in that: described bolt head lower end surface is provided with step, be provided with annular groove between the edge of described step and bolt head lower end surface, described screw rod upper end is the polished rod section, and 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, and described thread section is provided with the shallow slot parallel with screw axis.
2. the quick detachable bolt of a kind of pre-tensioned type according to claim 1, it is characterized in that: described bolt head is cylindrical no bevel bolt head.
3. the quick detachable bolt of a kind of pre-tensioned type according to claim 1, it is characterized in that: described shallow slot is at least one, and the shallow slot degree of depth is 1-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629827 CN203051389U (en) | 2012-11-25 | 2012-11-25 | Easy-to-disassemble preloaded bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629827 CN203051389U (en) | 2012-11-25 | 2012-11-25 | Easy-to-disassemble preloaded bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051389U true CN203051389U (en) | 2013-07-10 |
Family
ID=48734347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220629827 Expired - Fee Related CN203051389U (en) | 2012-11-25 | 2012-11-25 | Easy-to-disassemble preloaded bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051389U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104274236A (en) * | 2014-09-18 | 2015-01-14 | 常州市江浪铸造有限公司 | Auxiliary bone nail |
| CN104373443A (en) * | 2014-10-27 | 2015-02-25 | 苏州市吴中区光福金凤五金厂 | Self-lubricating bolt |
-
2012
- 2012-11-25 CN CN 201220629827 patent/CN203051389U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104274236A (en) * | 2014-09-18 | 2015-01-14 | 常州市江浪铸造有限公司 | Auxiliary bone nail |
| CN104373443A (en) * | 2014-10-27 | 2015-02-25 | 苏州市吴中区光福金凤五金厂 | Self-lubricating bolt |
| CN104373443B (en) * | 2014-10-27 | 2016-08-24 | 苏州中拓专利运营管理有限公司 | A kind of self-lubricating bolt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203051410U (en) | Preloaded bolt | |
| CN203485088U (en) | Hexagon bolt tightening device | |
| CN203051406U (en) | Pre-tightening anti-linkage bolt | |
| CN203051389U (en) | Easy-to-disassemble preloaded bolt | |
| CN203051416U (en) | Anti-rotating and easily-dismounted bolt | |
| CN203051378U (en) | Anti-loosening preloaded bolt | |
| CN203051376U (en) | Multifunctional pre-tightening type easy-to-disassemble bolt | |
| CN202963669U (en) | Clamp for gear hob | |
| CN203426910U (en) | Multifunctional hexagonal socket wrench | |
| CN201565868U (en) | Quickly-detachable tooling compression piece | |
| CN104290060A (en) | Small space socket head cap screw mounting and dismounting tool | |
| CN203051415U (en) | Efficient anti-linkage bolt | |
| CN103267055A (en) | Fastening bolt | |
| CN203266513U (en) | Movable wrench | |
| CN203051413U (en) | Sealing bolt | |
| CN203009221U (en) | Piston rod component with locking device | |
| CN203051373U (en) | Sealing type countersunk screw bolt | |
| CN105422593A (en) | Connecting assembly capable of being manually dismounted | |
| CN205254857U (en) | Hexagonal spanner | |
| CN203804909U (en) | Engine test bench coupling wheel pin disassembly tool | |
| CN201771927U (en) | Bolt with anti-slip structure | |
| CN203051414U (en) | Anti-rotating bolt | |
| CN204263068U (en) | A kind of metallurgical machinery equipment dismounting tool for circular nut | |
| CN201779117U (en) | Bolt with antiskid structure | |
| CN203636769U (en) | Device for fastening foundation bolt of rolling mill base plate |
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 |