CN202292544U - Special wrench for preventing nut falling - Google Patents
Special wrench for preventing nut falling Download PDFInfo
- Publication number
- CN202292544U CN202292544U CN 201120356158 CN201120356158U CN202292544U CN 202292544 U CN202292544 U CN 202292544U CN 201120356158 CN201120356158 CN 201120356158 CN 201120356158 U CN201120356158 U CN 201120356158U CN 202292544 U CN202292544 U CN 202292544U
- Authority
- CN
- China
- Prior art keywords
- falling
- spanner
- bar
- wrench
- pullover
- 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.)
- Withdrawn - After Issue
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model provides a special wrench for preventing nut falling. The wrench comprises a wrench bar, a handle bar and a wrench sleeve head, wherein the wrench bar has a cylindrical structure; a horizontal round hole is formed at the upper part of the wrench bar; the handle bar passes through the round hole; falling preventing structures are arranged at the two ends of the handle bar; the shape of an inner hole at the lower end of the wrench sleeve head is fit with that of a nut; a bar guide hole is formed at the top of the wrench sleeve head; a guide bar passes through the bar guide hole; a falling preventing positioning device is arranged on the guide bar above the wrench sleeve head; a magnetic chuck is arranged at the lower end of the guide bar; return springs pass through the guide bar between the top of the wrench sleeve head and the magnetic chuck; ring-shaped magnets are arranged on the end face at the lower end of the wrench sleeve head; the falling preventing structures comprise counter holes formed on the handle bar; falling preventing return springs and falling preventing steel balls are arranged in the counter holes from bottom to top in sequence; the tops of the falling preventing steel balls are exposed out of the upper openings of the counter holes; and the falling preventing positioning device comprises a flat gasket and a stop bolt nut which are arranged on the guide bar. The wrench provided by the utility model has a simple structure and practical functions, is convenient to use, saves time and labor and prevents falling during dismantling and installing the nut.
Description
Technical field
The utility model relates to a kind of screw cap-falling-proof special spanner.
Background technology
At present, when transformer station's maintenance on-load voltage regulation switch of power transformer work, need the hold-doun nut of dismounting tap changer, it is local that nut is in the equipment narrow edge, accidentally will fall in the switch oil sump dark more than 1 meter, makes troubles to service work.
The utility model content
The utility model provides a kind of screw cap-falling-proof special spanner, can thoroughly solve caducous problem when equipment narrow edge place dismounting nut.
In order to solve the problems of the technologies described above; The utility model adopts following technical scheme: the screw cap-falling-proof special spanner; Comprise that wrenching bar, handlebar and spanner are pullover, wrenching bar is a tubular construction, and wrenching bar top is provided with horizontal circular hole; Be equipped with handlebar in the circular hole, the two ends of handlebar are provided with disconnecting prevention structure; Hole shape and nut shape are suitable in the pullover lower end of spanner; The pullover top of spanner is provided with guide rod hole; Be equipped with guide post in the guide rod hole; The guide post of the pullover top of spanner is provided with the anticreep positioner, and the lower end of guide post is provided with magnetic chuck, is equipped with back-moving spring on the guide post between spanner cover head and the magnetic chuck; The pullover end opening end face of described spanner is provided with annular magnet.
Described disconnecting prevention structure comprises the counterbore that is provided with on the handlebar, is provided with anticreep back-moving spring and anticreep steel ball in the counterbore from the bottom to top successively, and counterbore setting suitable for reading is exposed at the top of anticreep steel ball.
Described anticreep positioner is flat shim and the caging bolt cap that is arranged on the guide post.
Described magnetic chuck is the 8-12 millimeter to the distance between the pullover bottom of spanner.
Described wrenching bar is a tube-shaped structure, and the size of wrenching bar endoporus is greater than caging bolt cap size.
The pullover lower end of described spanner endoporus is the regular hexagon endoporus.
Described handlebar is cylindrical.
The utility model is simple in structure, function is practical, can thoroughly solve caducous problem when equipment narrow edge place dismounting nut.Telescopic magnetic chuck can adsorb nut, and annular magnet can adsorption gasket, and handlebar can slide in the circular hole of wrenching bar and be provided with disconnecting prevention structure, and is very convenient to use, time saving and energy saving, improved removal efficiency greatly.
Description of drawings
Fig. 1 is the vertical section structure sketch map of the utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 is the C-C cutaway view of Fig. 1.
The specific embodiment
Embodiment: shown in Fig. 1-4: the screw cap-falling-proof special spanner comprises wrenching bar 9, handlebar 10 and spanner pullover 1; Handlebar 10 is cylindrical; Wrenching bar 9 is a tubular construction, and wrenching bar 9 tops are provided with horizontal circular hole, are equipped with handlebar 10 in the circular hole; The two ends of handlebar 10 are provided with disconnecting prevention structure; Described disconnecting prevention structure comprises the counterbore that is provided with on the handlebar 10, is provided with anticreep back-moving spring 12 and anticreep steel ball 11 in the counterbore from the bottom to top successively, and counterbore setting suitable for reading is exposed at the top of anticreep steel ball 11.Spanner pullover 1 lower end endoporus 8 shapes and nut shape are suitable, are orthohexagonal endoporus 8 in the present embodiment.The top of spanner pullover 1 is provided with guide rod hole, is equipped with guide post 6 in the guide rod hole, and the guide post 6 of pullover 1 top of spanner is provided with the anticreep positioner, and described anticreep positioner is the flat shim 4 and caging bolt cap 5 that is arranged on the guide post 6.The lower end of guide post 6 is provided with magnetic chuck 2, is equipped with back-moving spring 3 on the guide post 6 between pullover 1 top of spanner and the magnetic chuck 2; The pullover 1 end opening end face of spanner is provided with annular magnet 7.Magnetic chuck 2 is the 8-12 millimeter to the distance between pullover 1 bottom of spanner, 10 millimeters of present embodiment metas.Wrenching bar 9 is a tube-shaped structure, and the size of wrenching bar 9 endoporus is convenient to install caging bolt cap 5 greater than caging bolt cap 5 sizes.
In narrow place, when needing to use the screw cap-falling-proof special spanner to remove nut, spanner pullover 1 is aimed at bolt firmly depress magnetic chuck 2; The orthohexagonal endoporus 8 cover upper cap nuts up to pullover 1 lower end of spanner; Turning handle bar 10 loosen nut then, annular magnet 7 adsorption gaskets at this moment, nut fall back on shank of bolt at ordinary times; Nut is by magnetic chuck 2 absorption; Nut and magnetic chuck 2 rotate together and withdraw from shank of bolt, and nut can not come off by magnetic chuck 2 absorption, has played the screw cap-falling-proof effect.
When needing nut is installed, nut is contained on the orthohexagonal endoporus 8 in pullover 1 lower end of spanner magnetic chuck 2 absorption nuts; Install then; Nut is tightened gradually, and shank of bolt compression magnetic chuck 2 is thrown off with nut, the decrement of magnetic chuck 2 guaranteed pullover can tightening nuts.
Claims (7)
1. screw cap-falling-proof special spanner, it is characterized in that: comprise that wrenching bar, handlebar and spanner are pullover, wrenching bar is a tubular construction, and wrenching bar top is provided with horizontal circular hole, is equipped with handlebar in the circular hole, and the two ends of handlebar are provided with disconnecting prevention structure; Hole shape and nut shape are suitable in the pullover lower end of spanner; The pullover top of spanner is provided with guide rod hole; Be equipped with guide post in the guide rod hole; The guide post of the pullover top of spanner is provided with the anticreep positioner, and the lower end of guide post is provided with magnetic chuck, is equipped with back-moving spring on the guide post between spanner cover head and the magnetic chuck; The pullover end opening end face of described spanner is provided with annular magnet.
2. screw cap-falling-proof special spanner according to claim 1; It is characterized in that: described disconnecting prevention structure comprises the counterbore that is provided with on the handlebar; Be provided with anticreep back-moving spring and anticreep steel ball in the counterbore from the bottom to top successively, counterbore setting suitable for reading is exposed at the top of anticreep steel ball.
3. screw cap-falling-proof special spanner according to claim 1 and 2 is characterized in that: described anticreep positioner is flat shim and the caging bolt cap that is arranged on the guide post.
4. screw cap-falling-proof special spanner according to claim 3 is characterized in that: described magnetic chuck is the 8-12 millimeter to the distance between the pullover bottom of spanner.
5. screw cap-falling-proof special spanner according to claim 4 is characterized in that: described wrenching bar is a tube-shaped structure, and the size of wrenching bar endoporus is greater than caging bolt cap size.
6. screw cap-falling-proof special spanner according to claim 5 is characterized in that: the pullover lower end of described spanner endoporus is the regular hexagon endoporus.
7. screw cap-falling-proof special spanner according to claim 6 is characterized in that: described handlebar is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120356158 CN202292544U (en) | 2011-09-22 | 2011-09-22 | Special wrench for preventing nut falling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120356158 CN202292544U (en) | 2011-09-22 | 2011-09-22 | Special wrench for preventing nut falling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202292544U true CN202292544U (en) | 2012-07-04 |
Family
ID=46361519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120356158 Withdrawn - After Issue CN202292544U (en) | 2011-09-22 | 2011-09-22 | Special wrench for preventing nut falling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202292544U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350673A (en) * | 2011-09-22 | 2012-02-15 | 河南省电力公司驻马店供电公司 | Special spanner for preventing screw cap from falling off |
| CN106863201A (en) * | 2017-04-05 | 2017-06-20 | 泸州市金松机械设备制造有限公司 | The dismantling spanner of outer-hexagonal bolt |
| CN111706173A (en) * | 2020-06-15 | 2020-09-25 | 广东电网有限责任公司惠州供电局 | Switch tool of switch mechanism box |
-
2011
- 2011-09-22 CN CN 201120356158 patent/CN202292544U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350673A (en) * | 2011-09-22 | 2012-02-15 | 河南省电力公司驻马店供电公司 | Special spanner for preventing screw cap from falling off |
| CN102350673B (en) * | 2011-09-22 | 2013-06-26 | 河南省电力公司驻马店供电公司 | Special spanner for preventing screw cap from falling off |
| CN106863201A (en) * | 2017-04-05 | 2017-06-20 | 泸州市金松机械设备制造有限公司 | The dismantling spanner of outer-hexagonal bolt |
| CN111706173A (en) * | 2020-06-15 | 2020-09-25 | 广东电网有限责任公司惠州供电局 | Switch tool of switch mechanism box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20130626 |
|
| RGAV | Abandon patent right to avoid regrant |