CN107775578A - Adjustable three-jaw spanner - Google Patents
Adjustable three-jaw spanner Download PDFInfo
- Publication number
- CN107775578A CN107775578A CN201610716810.6A CN201610716810A CN107775578A CN 107775578 A CN107775578 A CN 107775578A CN 201610716810 A CN201610716810 A CN 201610716810A CN 107775578 A CN107775578 A CN 107775578A
- Authority
- CN
- China
- Prior art keywords
- pipe
- adjustable
- present
- claw
- diesel engine
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/10—Spanners; Wrenches with adjustable jaws
- B25B13/12—Spanners; Wrenches with adjustable jaws the jaws being slidable
- B25B13/20—Arrangements for locking the jaws
- B25B13/24—Arrangements for locking the jaws by cam, wedge, or friction means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/481—Spanners; Wrenches for special purposes for operating in areas having limited access
Abstract
The title of the present invention is adjustable three-jaw spanner, is related to the adjustable three-jaw spanner for DF4D types diesel engine of locomotive installation fire-proof plate.It is not of uniform size that it mainly solves the six square nuts that the fire-proof plate that is pressed on cylinder of diesel engine uses at present, and the narrow space between cylinder cap for diesel engine, and difficulty is brought to tightening for interior six square nuts, and operating efficiency is low, the problem of tightening effect difference.The wrench body of the present invention is a pipe, and one end of pipe is provided with slide bar, and the other end of pipe is provided with three claws, and three claws are tilted by screw thread and are connected on pipe.The wrench body of the present invention uses tubular structure, can improve bulk strength, mitigates weight, can be adjusted using threaded connection, the overhang of claw between the claw and wrench body of spanner, can increase reducing scope；The present invention improves the speed for tightening fire-proof plate fixing nut, ensure that screw-down torque.
Description
Technical field
The present invention relates to a kind of adjustable three-jaw spanner, relates particularly to be used for the installation fire prevention of DF4D types diesel engine of locomotive
The adjustable three-jaw spanner of plate.
Background technology
To improve the security of diesel engine of locomotive in operation, diesel engine of locomotive all adds fire-proof plate, and fire-proof plate passes through
Thin hexagonal nut is pressed on cylinder of diesel engine bolt.Six sides used due to each locomotive depot of Railway Bureau and each place railroad
Nut is not of uniform size, and the narrow space between cylinder cap for diesel engine, and many difficulties, work are brought to tightening for interior six square nuts
It is low to make efficiency, it is poor to tighten effect.
The content of the invention
The purpose of the present invention is to be directed to above-mentioned deficiency, and proposition is a kind of versatile, suitable for different size of spiral shell
Mother, can improve the speed for tightening fire-proof plate fixing nut, ensure screw-down torque, and operating efficiency is high, tighten good adjustable of effect
Formula three-jaw spanner.
The present invention technical solution be：Wrench body is a pipe, and one end of pipe is provided with slide bar, pipe
The other end is provided with three claws, and three claws are tilted by screw thread and are connected on pipe.
The side wall of pipe described in the technical solution of the present invention is provided with what is tilted with the central axis of pipe
Three screwed holes, three claws by being threaded on three screwed holes of pipe in its one end, pass through locking screw respectively
Claw is locked on pipe by mother.
Slide bar described in the technical solution of the present invention is connected in the radial hole on pipe.
The internal diameter of pipe described in the technical solution of the present invention is more than the external diameter of cylinder of diesel engine cylinder head bolt, pipe
The length of son is more than the height of cylinder of diesel engine cylinder cap.
The on-fixed end of claw described in the technical solution of the present invention is provided with eccentric square tenon.
The wrench body of the present invention uses tubular structure, can improve bulk strength, mitigates weight, the claw of spanner and spanner master
It can be adjusted using threaded connection, the overhang of claw between body, reducing scope can be increased；The present invention, which improves, tightens fire prevention
The speed of plate fixing nut, ensure that screw-down torque.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention.
Fig. 2 is the structural representation of the present invention.
Fig. 3 is the part sectioned view that wrench body is connected with claw.
Fig. 4 is the stereogram of claw front end bias side tenon.
Embodiment
As shown in Figure 1,2,3, 4, spanner of the invention includes a pipe 1, can be improved using tubular structure overall strong
Degree, mitigate weight；The internal diameter of pipe 1 is more than the external diameter of cylinder of diesel engine cylinder head bolt, can avoid the dry of bolt cylinder end
Relate to, the length of pipe 1 is more than the height of cylinder of diesel engine cylinder cap, can avoid the interference of cylinder cap；One end of pipe 1, which is provided with, to be slided
Bar 2, slide bar 2 are connected in the radial hole on pipe 1, and slide bar 2 can slide along the hole on pipe 1, can be to pipe by slide bar 2
Son 1 applies moment of torsion, and can avoid the interference of diesel engine charge air cooler；Three claws 3 are connected with the other end of pipe 1, pipe 1 should
The side wall at end is provided with three downward screwed holes, and the central axis of three screwed holes and pipe 1 is obliquely installed, three claws 3
Respectively by being threaded on three screwed holes of pipe 1 in its one end, and claw 3 is locked at by locking nut 4
On pipe 1, as shown in Figure 2,3, the overhang of claw 3 can be adjusted using threaded connection, to increase the reducing scope of claw 3,
The central axis of the versus tube 1 of claw 3 has certain inclination angle, to reduce maximum radial dimension, improves spanner intensity, avoids diesel oil
The interference of machine cylinder cover, and reach the reducing of claw 3；The on-fixed end of the front end of claw 3, i.e. claw 3 is provided with a bias
Square tenon 5, as shown in figure 4, the working diameter of claw 3 can also be changed to a certain extent by the rotation of eccentric structure；It is logical
Claw 3 can be locked on pipe 1 by the square tenon 5 and locking nut 4 for crossing bias.
Claims (5)
1. a kind of adjustable three-jaw spanner, it is characterized in that：Wrench body is a pipe（1）, pipe（1）One end be provided with slide
Bar（2）, pipe（1）The other end be provided with three claws（3）, three claws（3）Tilted by screw thread and be connected to pipe（1）
On.
2. the adjustable three-jaw spanner according to claim 1, it is characterized in that：Described pipe（1）Side wall be provided with
Pipe（1）Three screwed holes tilting of central axis, three claws（3）Respectively by being threaded in pipe in its one end
Son（1）Three screwed holes on, pass through locking nut（4）By claw（3）It is locked at pipe（1）On.
3. the adjustable three-jaw spanner according to claim 1, it is characterized in that：Described slide bar（2）It is connected to pipe（1）
On radial hole in.
4. the adjustable three-jaw spanner according to claim 1, it is characterized in that：Described pipe（1）Internal diameter be more than diesel oil
The external diameter of machine cylinder cylinder head bolt, pipe（1）Length be more than cylinder of diesel engine cylinder cap height.
5. the adjustable three-jaw spanner according to claim 1, it is characterized in that：Described claw（3）On-fixed end on set
There is the square tenon of bias（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716810.6A CN107775578A (en) | 2016-08-25 | 2016-08-25 | Adjustable three-jaw spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716810.6A CN107775578A (en) | 2016-08-25 | 2016-08-25 | Adjustable three-jaw spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107775578A true CN107775578A (en) | 2018-03-09 |
Family
ID=61388477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610716810.6A Pending CN107775578A (en) | 2016-08-25 | 2016-08-25 | Adjustable three-jaw spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107775578A (en) |
-
2016
- 2016-08-25 CN CN201610716810.6A patent/CN107775578A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180309 |
|
| WD01 | Invention patent application deemed withdrawn after publication |