CN207824766U - A kind of small-sized forward and reverse ratchet spanner - Google Patents
A kind of small-sized forward and reverse ratchet spanner Download PDFInfo
- Publication number
- CN207824766U CN207824766U CN201820074972.9U CN201820074972U CN207824766U CN 207824766 U CN207824766 U CN 207824766U CN 201820074972 U CN201820074972 U CN 201820074972U CN 207824766 U CN207824766 U CN 207824766U
- Authority
- CN
- China
- Prior art keywords
- pawl
- mounting
- installation axle
- positioning pin
- ratchet
- 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- Withdrawn - After Issue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 discloses a kind of small-sized forward and reverse ratchet spanneres comprising handle, sleeve, ratchet, pawl, torsion spring, cover board, positive positioning pin and inverted orientation pin；The front end of handle is equipped with mounting groove, is provided with mounting hole in the bottom of mounting groove, and equipped with mounting post vertically upward；The upper end of sleeve is equipped with installation axle, and installation axle passes from below through mounting hole；Ratchet is fixed in installation axle, and in mounting groove；Pawl is set in ratchet corresponding matching in mounting post, and torsion spring provides restoring force for pawl；Cover board is fixed on above handle, and front corresponds to installation axle and mounting post has a location hole, and the upper end of installation axle and mounting post is inserted into location hole respectively；It is also opened there are two positioning pin mounting hole in the front of cover board, positive positioning pin and inverted orientation pin are plugged in positioning pin mounting hole, and shelves are distinguished in the both sides of pawl in the lower part of two positioning pins.The utility model can disassemble and install the screw in narrow space.
Description
Technical field
The utility model is related to a kind of small-sized forward and reverse ratchet spanneres.
Background technology
Have part structure special on existing aircarrier aircraft, A320 airplane starters control valve flow shell and
4 screw connections have been used in the junction of start cylinder shell, and the dismounting of the screw and installation space are extremely limited.On the market can
The ratchet spanner bought cannot all be used, because click apparatus is integrally fixed on the outer ring of sleeve, cause the outer of ratchet spanner
Shape is oversized, and after installing upper bush, sleeve cannot be nested on head of screw, can not be disassembled and installed to screw.At present
Way be：Using common wrench, above-mentioned screw is removed and installed by constantly shifting one's position, inefficiency.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of small-sized forward and reverse ratchet spanner, can be to narrow
Screw in narrow space is disassembled and installed.
Above-mentioned technical problem is solved, the technical solution adopted in the utility model is as follows：
A kind of small-sized forward and reverse ratchet spanner, it is characterized in that including：
One handle, front end are equipped with mounting groove, are provided with mounting hole in the bottom of mounting groove, and be equipped with and hang down in the bottom of mounting groove
Straight upward mounting post；
One sleeve, upper end are equipped with vertical coaxial installation axle, and installation axle passes from below through mounting hole；
One ratchet, is fixed in installation axle, and in mounting groove；
One pawl, is rotatably set in mounting post, and with ratchet corresponding matching；
One torsion spring provides restoring force for pawl；
One cover board, is fixed on above handle, and front is located at the top of mounting groove, and corresponding installation axle and mounting post difference
It is provided with location hole, the upper end of installation axle and mounting post is inserted into location hole respectively；Positioning pin there are two also being opened in the front of cover board
Mounting hole, two positioning pin mounting holes are located at the both sides of pawl；
Positive positioning pin and inverted orientation are sold, and are removably plugged in positioning pin mounting hole respectively, under two positioning pins
Shelves are distinguished in the both sides of pawl in portion.
It is equipped with step on the top of the mounting post, pawl is limited on step.
The torsion spring is placed on the lower part of mounting post, and the upper movable end fixation of torsion spring inserts on pawl, lower activity
The fixed bottom for inserting in mounting groove in end.
The ratchet is fixed on by lock screw in installation axle.
The cover board is fixed on by the cover screw of tail portion on handle.
Compared with prior art, the utility model has the advantages that：
The utility model is equipped with special sleeve, and ratchet is directly fixed in the installation axle of sleeve, and it only passes through positioning
Pin realizes forward and reverse adjusting of ratchet spanner, simple in structure, can be according to the small sized ratchet of actual demand system
Spanner disassembles and installs the screw in narrow space to realize.
Description of the drawings
Fig. 1 is the vertical view of the utility model；
Fig. 2 is the sectional view at A-A in Fig. 1；
Fig. 3 is the vertical view after the utility model dismounting lower cover；
Fig. 4 is the sectional view of the handle of the utility model.
Reference numeral meaning in figure：
1- sleeves；11- installation axles；2- ratchets；21- fixed rings；3- pawls；4- handles；41- mounting posts；42- cover boards are fixed
Slot；43- mounting grooves；44- mounting holes；45- steps；5- torsion springs；6- cover boards；7- lock screws；8- cover screws；9- is reversed
Positioning pin；10- forward direction positioning pins.
Specific implementation mode
The utility model is further described with reference to embodiment.
The small-sized forward and reverse ratchet spanner of one kind as shown in Figure 1 to Figure 3 comprising handle 4, sleeve 1, ratchet 2, pawl 3,
Torsion spring 5, cover board 6, positive positioning pin 10 and inverted orientation pin 9.
As shown in figure 4, the front end of handle 4 is equipped with mounting groove 43, the front end of the mounting groove 43 of the embodiment is opening, is being pacified
The bottom of tankage 43 is provided with mounting hole 44, and equipped with mounting post 41 vertically upward, and mounting hole 44 is located at the front of mounting post 41,
It is equipped with the step 45 for being limited to pawl 3 on the top of mounting post 41.It is equipped at the middle part of handle 4 for fixing cover board
The cover board fixing groove 42 at 6 rear portion.
The upper end of sleeve 1 is equipped with vertical coaxial installation axle 11, and installation axle 11 passes from below through mounting hole 44, sleeve 1
Below handle front end.Ratchet 2 is inserted in from top in installation axle 11, is located in mounting groove 43, and the lower end of ratchet 2 is to downward
Stretching has fixed ring 21, and threaded hole is provided in fixed ring 21, and lock screw 7 has been tightened in threaded hole, and the inner end of lock screw 7 is withstood on
In installation axle 11, to which ratchet 2 is fixed in installation axle 11.
Pawl 3 is placed on by its through-hole in mounting post 41, and above step 45, step 45 limits pawl 3,
Pawl 3 can be rotated around mounting post 41, pawl 3 and 2 corresponding matching of ratchet.Torsion spring 5 is placed on the lower part of mounting post 41, torque bullet
The upper movable end fixation of spring 5 inserts on pawl 3, and lower movable end fixes the bottom for inserting in mounting groove 43, and torsion spring 5 is so that pawl
3 keep the position of face ratchet 2, and after rotation deviates, torsion spring 3 provides restoring force for it.
Downwardly projecting locating piece is equipped with below the tail portion of cover board 6, location hole is correspondingly embedded in cover board fixing groove 42, and
Opened there are three threaded hole in the tail portion of cover board 6, correspond in cover board fixing groove 42 three threaded holes also open there are three threaded hole, if
It is tightened in respectively in above-mentioned threaded hole there are three cover screw 8, to which the tail portion of cover board 6 to be fixed on handle 4.Cover board 6
Front is located at the top of mounting groove 43, and corresponding installation axle 11 and mounting post 41 have location hole, installation axle 11 and installation
The upper end of column 41 is inserted into location hole respectively, to form good bearing to installation axle 11 and mounting post 41.
It is also opened there are two positioning pin mounting hole in the front of cover board 6, two positioning pin mounting holes are equipped with internal thread, two
Positioning pin mounting hole is located at the both sides of pawl 3.It is respectively equipped with external screw thread on positive positioning pin 10 and inverted orientation pin 9, just
To positioning pin 10 and inverted orientation pin 9, correspondence is twisted in positioning pin mounting hole respectively, realizes the detachable interposing of two positioning pins 10,9
Dress, positive positioning pin 10 and the lower part for reverse-locating pin 9 are pierced by downwards below cover board 6, and shelves are in the both sides of pawl 3 respectively.
The course of work of the ratchet spanner is as follows：
In removable screw, positive positioning pin 10 is first extracted, it is ensured that reverse-locate pin 9 and lock, sleeve 1 is placed on screw
Head, first toward counterclockwise handle 4 is pulled, rotary force is passed to pawl by sleeve 1 by the resistance of screw by ratchet 2
3, pawl 3 by 9 resistance of pin is reverse-located, is fixedly mounted at because reverse-locating pin 9 on cover board 6 so that pawl 3 limits again
The rotation of ratchet 2 is made, therefore sleeve 1 can apply pressure to screw, driving screw rotation at this time；When handle 4 is counterclockwise transported
It moves to position when being restricted, needs to pull handle 4 along clockwise direction, pawl 3 is overcome torsion spring 5 by the driving of ratchet 2
Spring force, pawl 3 will rotate clockwise around mounting post 41, and pawl 3 cannot limit ratchet 2, suitable in handle 4 in this way
When clockwise rotates, ratchet 2 does not rotate, when handle 4, which moves clockwise to position, to be restricted, then along side counterclockwise
To pulling handle 4, at this point, pawl 3 under the spring-force driven dual of torsion spring 5, is restored to original position, and is close to reverse-locate pin 9,
It is able to driving pawl 2 to rotate counterclockwise, band moving sleeve 1, driving removable screw rotation.It constantly repeats the above process, demolishing process
It smoothly completes.
In mounting screw, first extracts and reverse-locate pin 9, it is ensured that positive positioning pin 10 is locked, and sleeve 1 is placed on screw
Head, first toward handle 4 is pulled clockwise, sleeve 1 is passed to rotary force by ratchet 2 by the resistance of mounting screw
Pawl 3, pawl 3 is again by 10 resistance of positive positioning pin, because positive positioning pin 10 is fixedly mounted on cover board 6 so that
Pawl 3 has limited the rotation of ratchet 2, so that sleeve 1 applies pressure to mounting screw, driving screw rotation；When 4 up time of handle
When needle direction moves to position and is restricted, need to pull handle 4 in the counterclockwise direction, pawl 3 by ratchet 2 driving force, gram
The spring force of torsion spring 5 is taken, pawl 3 will be rotated counterclockwise around mounting post, and pawl 3 cannot limit ratchet 2, in this way
When handle 4 rotates, ratchet 2 does not rotate, when handle 4 moves to position in the counterclockwise direction to be restricted, then along side clockwise
To handle 4 is pulled, at this point, pawl 3 under the spring-force driven dual of torsion spring 5, is restored to original position, and it is close to positive positioning pin
10, it is able to driving pawl 2 and rotates clockwise, band moving sleeve 1, driving mounting screw rotation.It constantly repeats the above process, installed
Journey smoothly completes.
Claims (5)
1. a kind of small-sized forward and reverse ratchet spanner, which is characterized in that including：
One handle, front end are equipped with mounting groove, are provided with mounting hole in the bottom of the mounting groove, and set in the bottom of the mounting groove
There is mounting post vertically upward；
One sleeve, upper end are equipped with vertical coaxial installation axle, and the installation axle passes from below through the mounting hole；
One ratchet is fixed in the installation axle, and in the mounting groove；
One pawl is rotatably set in the mounting post, and with the ratchet corresponding matching；
One torsion spring provides restoring force for the pawl；
One cover board is fixed on above the handle, and front is located at the top of the mounting groove, and the corresponding installation axle and peace
Dress column has a location hole, and the upper end of the installation axle and mounting post is inserted into respectively in the location hole；In the cover board
Front is also opened there are two positioning pin mounting hole, and described two positioning pin mounting holes are located at the both sides of the pawl；
Positive positioning pin and inverted orientation are sold, and are removably plugged in respectively in the positioning pin mounting hole, two positioning pin
Lower part distinguish shelves in the both sides of the pawl.
2. small-sized forward and reverse ratchet spanner according to claim 1, it is characterised in that：It is equipped on the top of the mounting post
Step, the pawl are limited on step.
3. small-sized forward and reverse ratchet spanner according to claim 2, it is characterised in that：The torsion spring is placed on mounting post
Lower part, the upper movable end fixation of the torsion spring inserts on the pawl, and the fixation of lower movable end inserts in the mounting groove
Bottom.
4. small-sized forward and reverse ratchet spanner according to claim 1, it is characterised in that：The ratchet is solid by lock screw
Due in the installation axle.
5. small-sized forward and reverse ratchet spanner according to claim 1, it is characterised in that：The cover board that the cover board passes through tail portion
Screw is fixed on the handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074972.9U CN207824766U (en) | 2018-01-16 | 2018-01-16 | A kind of small-sized forward and reverse ratchet spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074972.9U CN207824766U (en) | 2018-01-16 | 2018-01-16 | A kind of small-sized forward and reverse ratchet spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207824766U true CN207824766U (en) | 2018-09-07 |
Family
ID=63393392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820074972.9U Withdrawn - After Issue CN207824766U (en) | 2018-01-16 | 2018-01-16 | A kind of small-sized forward and reverse ratchet spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207824766U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188964A (en) * | 2018-01-16 | 2018-06-22 | 广州飞机维修工程有限公司 | A kind of small-sized forward and reverse ratchet spanner |
| TWI738274B (en) * | 2019-07-23 | 2021-09-01 | 美商施耐寶公司 | Internal gear retention mechanism |
-
2018
- 2018-01-16 CN CN201820074972.9U patent/CN207824766U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188964A (en) * | 2018-01-16 | 2018-06-22 | 广州飞机维修工程有限公司 | A kind of small-sized forward and reverse ratchet spanner |
| CN108188964B (en) * | 2018-01-16 | 2019-12-03 | 广州飞机维修工程有限公司 | A kind of small-sized forward and reverse ratchet spanner |
| TWI738274B (en) * | 2019-07-23 | 2021-09-01 | 美商施耐寶公司 | Internal gear retention mechanism |
| US11426841B2 (en) | 2019-07-23 | 2022-08-30 | Snap-On Incorporated | Internal gear retention mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180907 Effective date of abandoning: 20191203 |
|
| AV01 | Patent right actively abandoned |