CN201539484U - Remote disassembling anti-drop bolt - Google Patents
Remote disassembling anti-drop bolt Download PDFInfo
- Publication number
- CN201539484U CN201539484U CN2009202163281U CN200920216328U CN201539484U CN 201539484 U CN201539484 U CN 201539484U CN 2009202163281 U CN2009202163281 U CN 2009202163281U CN 200920216328 U CN200920216328 U CN 200920216328U CN 201539484 U CN201539484 U CN 201539484U
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- CN
- China
- Prior art keywords
- bolt
- spring
- drop
- guiding cap
- screw thread
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- 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 - Lifetime
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Abstract
The utility model belongs to the field of the mechanical design and particularly relates to a remote disassembling anti-drop bolt. The remote disassembling anti-drop bolt comprises a bolt main body, a spring guiding cap and a preloaded spring, wherein the front part of a screw rod of the bolt main body is provided with a screw thread, while the rear part thereof is a polished rod; the sizes of the screw thread and the polished rod can be customized according to the actual working conditions; the head part of the bolt main body is a hexagon sleeve guide head; the spring guiding cap is a circular ring which is provided with part of internal screw thread; the parameter of the internal screw thread is matched with the screw thread of the bolt main body; and the size of the preloaded spring is matched with that of the spring guiding cap. The remote disassembling anti-drop bolt can conveniently carry out installation and fastening of the bolt on the underwater installation of the nuclear power plant. The head part of the bolt is the standard hexagon guide bolt head, thus, the remote disassembling anti-drop bolt is convenient to remotely use a long-handle tool sleeve to carry out installation, has strong adaptability and effectively provides the working efficiency.
Description
Technical field
The utility model relates to mechanical design field, is specifically related to a kind of remote dismounting Drop-proof bolt.
Background technique
Nuclear power plant is after long-time running, the situation that reliability reduces or equipment unit damages that some equipment can occur, this just need overhaul or transform these equipment, will come fastening with bolt for some equipment that need fix or supporting structure, in the general job environment, last bolt and tight moment are relatively simple, but because the particularity of nuclear power plant, some equipment is that personnel can't closely operate for a long time, especially the equipment in refuelling pool is the high radiation of high dose mostly, equipment can't take out more than the water surface for a long time, more impossible the diving beneath the water for a long time of personnel keeped in repair equipment, this carries out maintenance work by operating some special devices to the equipment that is positioned under water on the coast with regard to requiring we maintainer, the such work of construction bolt just relates to bolt on the water and the transmission between the underwater operation zone, the underwater location of bolt, and bolt link such as make-up torque in the screw under water.This has just proposed very high requirement for the maintenance of underwater installation.
At present, this technology also is in the immature stage at home and abroad, and the technology of clamping bolt can't satisfy the needs of real work fully under water, can only take the measure that substitutes under the situation of actual conditions more complicated.
Summary of the invention
The purpose of this utility model provides a kind of convenience, reliably remote Drop-proof bolt.
Realize the technological scheme of the utility model purpose: a kind of remote dismounting Drop-proof bolt, it is characterized in that: it comprises bolt body, spring guiding cap, preloading spring; The screw rod of bolt body is a front threads, the rear portion polished rod; The head of bolt body is a hexagon cage guiding head; The spring guiding cap is enclosed within on the screw rod of bolt body, and preloading spring is enclosed within on the screw rod of bolt body, and preloading spring is inserted in the inboard aperture of spring guiding cap.
Described spring guiding cap is band portion internal thread annulus, the parameter of internal thread and bolt body threads engaged.
The size of described preloading spring cooperates with the spring guiding cap.
Effect of the present utility model is: (1) can carry out bolt installation and fastening to nuclear power plant's underwater installation easily; (2) bolt head is a standard hex guide blot head, is convenient to use at a distance long handle instrument sleeve to install, and adaptability is strong, effectively increases work efficiency; (3) after bolt is installed on upper workpiece, have preloading spring to keep certain pretightening force and perpendicularity, difficult drop-off causes foreign matter under water, and control helps huge for the foreign matter in the remote-controlled operation in nuclear power plant's reactor.
Description of drawings
Fig. 1 is remote Drop-proof bolt schematic representation;
Fig. 2 is remote Drop-proof bolt screw rod schematic representation;
Fig. 3 is remote Drop-proof bolt guiding cap schematic representation;
Fig. 4 is the assembling schematic representation.
Among the figure: 1, bolt body; 2, spring guiding cap; 3, preloading spring; 4, workpiece one; 5, workpiece two
Embodiment
Below in conjunction with the drawings and specific embodiments a kind of remote dismounting Drop-proof bolt of the utility model is described in further detail.
As Fig. 1, Fig. 2, shown in Figure 3: a kind of remote dismounting Drop-proof bolt, it is characterized in that: it comprises bolt body 1, spring guiding cap 2, preloading spring 3; The screw rod of bolt body 1 is a front threads, the rear portion polished rod; The head of bolt body 1 is a hexagon cage guiding head; Spring guiding cap 2 is enclosed within on the screw rod of bolt body 1, and preloading spring 3 is enclosed within on the screw rod of bolt body 1, and preloading spring 3 is inserted in the inboard aperture of spring guiding cap 2.
Spring guiding cap 2 is a band portion internal thread annulus, the parameter of internal thread and bolt body 1 threads engaged.
The size of preloading spring 3 cooperates with spring guiding cap 2.
The screw thread of bolt body 1, the size of polished rod can customize by actual conditions.
As shown in Figure 4: remote dismounting Drop-proof bolt can be the same with any plain bolt, and two workpiece are linked to each other.Workpiece 1 and workpiece 25, the remote dismounting Drop-proof of assembled in advance bolt is to workpiece 1, arrive workpiece 25 positions by transporting system conveying workpieces 1, after in place, use the long handle instrument to carry the standard hex sleeve, reach predetermined torque by the remote fastening remote dismounting Drop-proof bolt of guide blot head; Also can get loose workpiece 1 and workpiece 25 after fastening, after workpiece 25 broke away from, remote dismounting Drop-proof bolt still was fixed on the workpiece 1, can not get loose.
The screw-thread fit of inner thread parameter and bolt body 1 can prevent that spring guiding cap 2 from coming off.
The size of preloading spring 3 matches with spring guiding cap 2, after bolt body 1 was assembled to workpiece 1, preloading spring 3 played the pretension effect, kept bolt body 1 vertical, after being tightened to predetermined torque on the remote dismounting Drop-proof bolt, preloading spring 3 all is compressed in the spring guiding cap 2.
Claims (3)
1. remote dismounting Drop-proof bolt, it is characterized in that: it comprises bolt body (1), spring guiding cap (2), preloading spring (3); The screw rod of bolt body (1) is a front threads, the rear portion polished rod; The head of bolt body (1) is a hexagon cage guiding head; Spring guiding cap (2) is enclosed within on the screw rod of bolt body (1), and preloading spring (3) is enclosed within on the screw rod of bolt body (1), and preloading spring (3) is inserted in the inboard aperture of spring guiding cap (2).
2. a kind of remote dismounting Drop-proof bolt according to claim 1, it is characterized in that: described spring guiding cap (2) is a band portion internal thread annulus, the parameter of internal thread and bolt body (1) threads engaged.
3. a kind of remote dismounting Drop-proof bolt according to claim 1, it is characterized in that: the size of described preloading spring (3) cooperates with spring guiding cap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202163281U CN201539484U (en) | 2009-09-11 | 2009-09-11 | Remote disassembling anti-drop bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202163281U CN201539484U (en) | 2009-09-11 | 2009-09-11 | Remote disassembling anti-drop bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201539484U true CN201539484U (en) | 2010-08-04 |
Family
ID=42590935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202163281U Expired - Lifetime CN201539484U (en) | 2009-09-11 | 2009-09-11 | Remote disassembling anti-drop bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201539484U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777453A (en) * | 2012-07-23 | 2012-11-14 | 东莞理工学院 | Fastening device applicable to remote-control maintenance |
| CN104295582A (en) * | 2014-09-21 | 2015-01-21 | 金方明 | Specially-made bolt of gland of injection molding machine and heat treatment process of specially-made bolt |
| CN112092440A (en) * | 2020-07-15 | 2020-12-18 | 中国核电工程有限公司 | Pressure head structure of superpressure machine and be used for superpressure machine of radioactive environment |
-
2009
- 2009-09-11 CN CN2009202163281U patent/CN201539484U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777453A (en) * | 2012-07-23 | 2012-11-14 | 东莞理工学院 | Fastening device applicable to remote-control maintenance |
| CN104295582A (en) * | 2014-09-21 | 2015-01-21 | 金方明 | Specially-made bolt of gland of injection molding machine and heat treatment process of specially-made bolt |
| CN112092440A (en) * | 2020-07-15 | 2020-12-18 | 中国核电工程有限公司 | Pressure head structure of superpressure machine and be used for superpressure machine of radioactive environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100804 |
|
| CX01 | Expiry of patent term |