CN201592406U - Special wrench - Google Patents
Special wrench Download PDFInfo
- Publication number
- CN201592406U CN201592406U CN2009203533017U CN200920353301U CN201592406U CN 201592406 U CN201592406 U CN 201592406U CN 2009203533017 U CN2009203533017 U CN 2009203533017U CN 200920353301 U CN200920353301 U CN 200920353301U CN 201592406 U CN201592406 U CN 201592406U
- Authority
- CN
- China
- Prior art keywords
- inner core
- overcoat
- wrench
- pointer
- special spanner
- 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 belongs to the hand tool technical field, particularly relates to a special wrench for assembling and disassembling anti-theft special-shaped fasteners or locksets. The special wrench is characterized in that: an outside circle at the lower end of an inner disc is arranged in an inner hole of a coating by a clamp spring, a wrench bar is arranged at the lower side of the other end of a wrench body, the upper side thereof is fixedly connected with one end of a pointer, and the other end of the pointer is matched with an inherent torque and moment dial on the wrench bar. The utility model has the advantages of simple structure, simple operation, long service life and high work efficiency.
Description
Technical field: the utility model belongs to the hand-operated tools technical field, is specifically related to a kind of special spanner that is used to load and unload antitheft special-shaped securing member or lockset.
Background technology: at present, at transmission and distribution circuit, electric power facilities such as distribution transformer, and highway, the installations and facilities in oil field are often stolen, design various anti-theft device for this reason, the also variation of the normal anti-theft nut that adopts, and existing specific purpose tool does not reach requirement, inefficiency to the coupling mechanism force of nut.
Summary of the invention: the purpose of this utility model provides a kind of simple in structure, and is simple to operate, long service life, the special spanner of high efficiency.
The technical solution of the utility model is: a kind of special spanner, the upper end of inner core are embedded in the wrench body one end circular hole, are provided with the inner core rotary reversing device at circular hole madial wall correspondence position; Form by the commutation piece by installing by bearing pin in the embedding groove that is provided with inner core correspondence position wrench body for described rotary reversing device, establishes return spring and steel ball at the bottom of the embedding groove in the inlaid hole; It is characterized in that: be loaded in the overcoat endoporus by jump ring on the lower end cylindrical of inner core, wrench body other end downside is provided with wrenching bar, and moment of torsion moment dial intrinsic on the be connected end of pointer of upside, the other end of pointer and wrenching bar matches.
Wherein, the axial contact-making surface of described inner core and overcoat place matches by spiral sour jujube tooth.Described inner core cylindrical and overcoat endoporus match by the sour jujube tooth.Described inner core cylindrical and overcoat endoporus match by the spiral tooth.
Owing to adopt technique scheme, because of inner core and the axial contact-making surface of overcoat place adopting spiral sour jujube tooth to cooperate, perhaps inner core cylindrical and overcoat endoporus adopt the cooperation of sour jujube tooth, spiral tooth to cooperate, and are provided with moment of torsion moment dial on wrench body, can reach desirable locking torque value on request, coupling mechanism force to nut plays stabilization, and can be used in combination with various general tools, thereby have simple in structure, simple to operate, long service life, the advantage of high efficiency.
Description of drawings: come the technical solution of the utility model is described further below in conjunction with the drawings and specific embodiments.
Accompanying drawing is the utility model structural representation;
The specific embodiment: with reference to the accompanying drawings, a kind of special spanner, the upper end of inner core 8 is embedded in the wrench body 4 one end circular holes, is provided with inner core 8 rotary reversing devices at circular hole madial wall correspondence position; Form by commutation pieces 6 by installing by bearing pin 5 in the embedding groove that is provided with inner core 8 correspondence position wrench bodies for described rotary reversing device, establishes return spring 10 and steel ball 11 at the bottom of the embedding groove in the inlaid hole; It is characterized in that: be loaded in overcoat 9 endoporus by jump ring 7 on the lower end cylindrical of inner core 8, wrench body 4 other end downsides are provided with wrenching bar 1, and moment of torsion moment dial 2 intrinsic on the be connected end of pointer 3 of upside, the other end of pointer 3 and wrenching bar matches; The axial contact-making surface of described inner core and overcoat place matches by spiral sour jujube tooth.According to actual needs, can adopt inner core cylindrical and overcoat endoporus spiral tooth to match; Also can adopt inner core cylindrical and overcoat endoporus sour jujube tooth to match; What present embodiment adopted is that the axial contact-making surface of inner core and overcoat place matches by spiral sour jujube tooth.
Claims (4)
1. special spanner, the upper end of inner core (8) is embedded in wrench body (4) the one end circular holes, is provided with inner core (8) rotary reversing device at circular hole madial wall correspondence position; Form by the piece (6) that commutates by installing by bearing pin (5) in the embedding groove that is provided with inner core (8) correspondence position wrench body for described rotary reversing device, establishes return spring (10) and steel ball (11) at the bottom of the embedding groove in the inlaid hole; It is characterized in that: be loaded in overcoat (9) endoporus by jump ring (7) on the lower end cylindrical of inner core (8), wrench body (4) other end downside is provided with wrenching bar (1), moment of torsion moment dial (2) intrinsic on the be connected end of pointer (3) of upside, the other end of pointer (3) and wrenching bar matches.
2. by the described a kind of special spanner of claim 1, it is characterized in that: described inner core (8) and overcoat (9) axially match by spiral sour jujube tooth at the contact-making surface place.
3. by the described a kind of special spanner of claim 1, it is characterized in that: described inner core (8) cylindrical and overcoat (9) endoporus match by the sour jujube tooth.
4. by the described a kind of special spanner of claim 1, it is characterized in that: described inner core (8) cylindrical and overcoat (9) endoporus match by the spiral tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203533017U CN201592406U (en) | 2009-12-22 | 2009-12-22 | Special wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203533017U CN201592406U (en) | 2009-12-22 | 2009-12-22 | Special wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201592406U true CN201592406U (en) | 2010-09-29 |
Family
ID=42774469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203533017U Expired - Fee Related CN201592406U (en) | 2009-12-22 | 2009-12-22 | Special wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201592406U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840319A (en) * | 2012-09-17 | 2012-12-26 | 三一重工股份有限公司 | Clearance adjustment device and clearance adjustment method for differential lock |
| CN104308786A (en) * | 2014-10-10 | 2015-01-28 | 中国电子科技集团公司第四十一研究所 | Special torque spanner used for radio frequency switch matrix |
| CN104742058A (en) * | 2013-12-27 | 2015-07-01 | 陈怡富 | Wrench clamping device |
-
2009
- 2009-12-22 CN CN2009203533017U patent/CN201592406U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840319A (en) * | 2012-09-17 | 2012-12-26 | 三一重工股份有限公司 | Clearance adjustment device and clearance adjustment method for differential lock |
| CN102840319B (en) * | 2012-09-17 | 2016-02-10 | 三一汽车制造有限公司 | The method of differential lock lash adjusting device and the adjustment of differential lock gap |
| CN104742058A (en) * | 2013-12-27 | 2015-07-01 | 陈怡富 | Wrench clamping device |
| CN104308786A (en) * | 2014-10-10 | 2015-01-28 | 中国电子科技集团公司第四十一研究所 | Special torque spanner used for radio frequency switch matrix |
| CN104308786B (en) * | 2014-10-10 | 2015-12-30 | 中国电子科技集团公司第四十一研究所 | The special torque spanner of a kind of RF switch matrix |
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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: 20100929 Termination date: 20111222 |