CN202556304U - Wrench for assembling and disassembling screw in narrow space - Google Patents
Wrench for assembling and disassembling screw in narrow space Download PDFInfo
- Publication number
- CN202556304U CN202556304U CN2012202007459U CN201220200745U CN202556304U CN 202556304 U CN202556304 U CN 202556304U CN 2012202007459 U CN2012202007459 U CN 2012202007459U CN 201220200745 U CN201220200745 U CN 201220200745U CN 202556304 U CN202556304 U CN 202556304U
- Authority
- CN
- China
- Prior art keywords
- spanner
- wrench
- screw rod
- narrow space
- equipment
- 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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
A wrench for assembling and disassembling a screw in a narrow space comprises a front section and a tail section. A screw jaw is arranged at the front end of the front section of the wrench, an internal thread is arranged at the rear end of the front section of the wrench, an external thread is arranged at the front end of the tail section of the wrench, a wrench gripping sleeve is arranged on the outer side of the rear end of the tail section of the wrench, and the external thread is matched with the internal thread. Compared with a common wrench, the wrench has obvious advantages in the narrow space and overcomes the shortcomings that the common wrench is inconvenient to operate in the narrow space, easily slips, collides with equipment, slips into the equipment, endangers personal safety and safety of the equipment, and the like to a certain degree, the wrench is labor-saving, simple, convenient and reliable in operation and does not easily slip when assembling and disassembling the screw in the narrow space of the equipment, and personal safety, safety of the equipment and operation efficiency are effectively improved.
Description
Technical field
The utility model relates to a kind of extracting tool, relates in particular to a kind of the loading and unloading at the small space screw rod and uses spanner.
Background technology
Hang in the cover overhaul operation at the 500kV transformer, transformer high-voltage sleeve pipe voltage equalizing ball is disconnected to be drawn again, disconnected drawing again of step down side lead-in wire be an important step of maintenance process.Because disconnected drawing again in the process, the narrow and small and screw surface in space has oil stain, common wrench operating process effort, is prone to slidingly, also has spanner collision inwall or voltage equalizing ball, and hand is prone to scratch, and spanner slips into unfavorable possibilities such as transformer.In case the generation of possibility will produce harm greatly to transformer.
In other small space service works, common wrench loading and unloading screw rod operation inconvenience is prone to cunning, collision equipment, slips into device interior, aspect the person and device security, has potential safety hazard to a certain degree.
Summary of the invention
The technical problem that the utility model will solve is in order to overcome common wrench in small space operation inconvenience; Be prone to cunning, collision equipment, slip into device interior; Jeopardize shortcomings such as the person and device security aspect, provide a kind of screw rod safe and reliable, simple to operation to load and unload novel spanner.
The purpose of the utility model is achieved in that
A kind of loading and unloading at the small space screw rod used spanner; It is made up of spanner leading portion and spanner rear two parts; The front end of described spanner leading portion is provided with the screw rod jaw, and the rear end of spanner leading portion is provided with internal thread, and the front end of described spanner rear is provided with external screw thread; The outside, the rear end of spanner rear is provided with the spanner cover of holding with a firm grip, and described external screw thread and internal thread match.
Above-mentioned screw rod jaw is a fork-shaped or quincunx.
The rear end of above-mentioned spanner rear also is provided with through wires hole.
Technique effect below the utility model has been obtained:
1. the utility model is compared with common wrench, has tangible advantage at small space, has avoided common wrench in small space operation inconvenience to a certain extent; Be prone to cunning, collision equipment, slip into device interior; Jeopardize shortcomings such as the person and device security aspect, at the narrow and small place's loading and unloading of device space screw rod, rapid operation, simple and convenient reliable; Be difficult for landing, all effectively improved at the person and device security, operating efficiency.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the spanner leading portion of the utility model;
Fig. 3 is the structural representation of the spanner rear of the utility model.
The specific embodiment
Shown in Fig. 1-3; A kind of loading and unloading at the small space screw rod used spanner, and it is made up of spanner leading portion 1 and spanner rear 2 two parts, and the front end of described spanner leading portion is provided with screw rod jaw 3; The rear end of spanner leading portion is provided with internal thread 4; The front end of described spanner rear is provided with external screw thread 5, and the outside, the rear end of spanner rear is provided with the spanner cover 6 of holding with a firm grip, and described external screw thread and internal thread match.Described screw rod jaw is a fork-shaped or quincunx.The rear end of described spanner rear also is provided with through wires hole 7.
This spanner size the same with the corresponding screw size of screw size corresponding relation and common wrench (like the spanner of the corresponding 17# of screw rod of M10).The spanner back segment is designed with the branch of length, can select to be suitable for spanner length according to space for maintenance size concrete condition.
The four finger arcs that spanner rear outside is processed by rubber increase frictional force, are convenient to hold with a firm grip; The tip designs through wires hole can penetrate fine rule, and in the person's hand that lies in the inspection operation, guarantees that further spanner can landing, falls into device interior (visual plant such as transformer).
Select to be fit to the spanner of size according to the screw rod size; According to the space for maintenance size; The spanner handle that select to be fit to length, spanner leading portion and spanner rear through screw thread closely connect solid after, hold tight rubber four finger arc parts; Fine rule lies in operator's hand, and the operation of loading and unloading screw rod is the same with common wrench.
Claims (3)
1. use spanner in small space screw rod loading and unloading for one kind; It is characterized in that: it is made up of spanner leading portion (1) and spanner rear (2) two parts; The front end of described spanner leading portion is provided with screw rod jaw (3), and the rear end of spanner leading portion is provided with internal thread (4), and the front end of described spanner rear is provided with external screw thread (5); The outside, the rear end of the spanner rear spanner cover (6) of holding with a firm grip, described external screw thread and internal thread match.
2. according to claim 1 the loading and unloading at the small space screw rod used spanner, and it is characterized in that: described screw rod jaw is a fork-shaped or quincunx.
3. according to claim 1 and 2 the loading and unloading at the small space screw rod used spanner, and it is characterized in that: the rear end of described spanner rear also is provided with through wires hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202007459U CN202556304U (en) | 2012-05-06 | 2012-05-06 | Wrench for assembling and disassembling screw in narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202007459U CN202556304U (en) | 2012-05-06 | 2012-05-06 | Wrench for assembling and disassembling screw in narrow space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202556304U true CN202556304U (en) | 2012-11-28 |
Family
ID=47206002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202007459U Expired - Fee Related CN202556304U (en) | 2012-05-06 | 2012-05-06 | Wrench for assembling and disassembling screw in narrow space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202556304U (en) |
-
2012
- 2012-05-06 CN CN2012202007459U patent/CN202556304U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20160506 |