CN102101275A - Special wrench - Google Patents
Special wrench Download PDFInfo
- Publication number
- CN102101275A CN102101275A CN2009102159666A CN200910215966A CN102101275A CN 102101275 A CN102101275 A CN 102101275A CN 2009102159666 A CN2009102159666 A CN 2009102159666A CN 200910215966 A CN200910215966 A CN 200910215966A CN 102101275 A CN102101275 A CN 102101275A
- Authority
- CN
- China
- Prior art keywords
- inner core
- wrench
- overcoat
- special
- pointer
- 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.)
- Pending
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Abstract
The invention belongs to the technical field of hand tools, in particular to a wrench special for assembling and disassembling a burglary prevention special-shaped fastening piece or lock. The special wrench is characterized in that: an encircle of the lower end of an inner core is arranged in a jacket inner hole, the lower side of the other end of a wrench body is provided with a wrench rod, the upper side of the other end of the wrench body is fixedly connected with one end of a pointer, and the other end of the pointer is matched with a torsion moment dial scale fixed on the wrench rod. Therefore, the special wrench has the advantage of simple structure, convenience of operation, long service life and high working efficiency.
Description
Technical field: the invention belongs to the hand-operated tools technical field, be 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 invention is to provide a kind of simple in structure, simple to operate, long service life, the special spanner of high efficiency.
Technical scheme of the present invention 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 technical scheme of the present invention is described further below in conjunction with the drawings and specific embodiments.
Accompanying drawing is a structural representation of the present invention;
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 |
|---|---|---|---|
| CN2009102159666A CN102101275A (en) | 2009-12-22 | 2009-12-22 | Special wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102159666A CN102101275A (en) | 2009-12-22 | 2009-12-22 | Special wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102101275A true CN102101275A (en) | 2011-06-22 |
Family
ID=44154435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102159666A Pending CN102101275A (en) | 2009-12-22 | 2009-12-22 | Special wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102101275A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124100A (en) * | 2016-08-25 | 2016-11-16 | 国网安徽省电力公司亳州供电公司 | Bore stake torque measurement accessory |
-
2009
- 2009-12-22 CN CN2009102159666A patent/CN102101275A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124100A (en) * | 2016-08-25 | 2016-11-16 | 国网安徽省电力公司亳州供电公司 | Bore stake torque measurement accessory |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110622 |