CN109202789A - A kind of spanner with self-locking function - Google Patents
A kind of spanner with self-locking function Download PDFInfo
- Publication number
- CN109202789A CN109202789A CN201811423126.4A CN201811423126A CN109202789A CN 109202789 A CN109202789 A CN 109202789A CN 201811423126 A CN201811423126 A CN 201811423126A CN 109202789 A CN109202789 A CN 109202789A
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- CN
- China
- Prior art keywords
- self
- hydraulic cylinder
- movable end
- locking function
- locking
- 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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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The present invention provides a kind of spanners with self-locking function, including wrench body, the front end of the wrench body has integrally formed fixing end, holding tank is offered in the wrench body, the hydraulic lock assembly that the movable end that can be moved along fixed extreme direction and control movable end move is equipped in the holding tank, the mobile self-locking device of locking movable end is additionally provided in the holding tank, the self-locking device includes front end and the affixed positioning transmission item of movable end and the positioning compression mechanism set on positioning transmission rear end.Work efficiency is high, easy to operate by the present invention, overcomes the mechanical wear formed when worm screw is meshed with the rack gear on movable end in traditional activity spanner, has the function of hydraulic automatic locking conjunction, securely and reliably.
Description
Technical field
The present invention relates to hand-operated tools technical field more particularly to a kind of spanners with self-locking function.
Background technique
Spanner is well known as a kind of commonly hand-held handling instrument, leads in daily life and industry and machinery manufacturing industry etc.
It is widely used in domain；General monkey wrench includes a fixing end integrally formed with wrench body and one
Relative to the movable end that fixing end is slidably installed, it is meshed by a worm screw with the rack gear being formed on movable end to adjust two
The distance in Hubei Province.The adjustment of this spanner is more troublesome, needs the more time to be adjusted, and between worm screw and movable end
It loosens or gap is inevitable again, so that monkey wrench can seldom be accomplished to make each face of nut in the way of back-up wrench
It is effectively combined, and in use, due to not being completely fixed to movable end, movable end loosening can make to pull mouth change
Greatly, need to adjust size of the movable end to adapt to fastener constantly；And when being operated to fastener, need through
Mouth will often be pulled and leave fastener, then clamping fastener again, fastener is rotated, operate very complicated.For this problem,
Also have in the prior art using attaching together the spanner set with hydraulic automatic locking, this spanner is able to achieve the automatic of fixing end and movable end
It is hydraulic sealed, but set in the operating condition when hydraulic automatic locking attaches together there is no being locked to movable end, it be easy to cause operation
It is improper and vacuumize hydraulic cylinder, influence the normal use of spanner.
Summary of the invention
To overcome following problems existing in the prior art, existing spanner realizes that the automatic hydraulic of fixing end and movable end is locked
Close, but set in the operating condition when hydraulic automatic locking attaches together being locked to movable end, be easy to cause misoperation and
Hydraulic cylinder is vacuumized, the normal use of spanner is influenced；The present invention provides a kind of spanners with self-locking function, including spanner
Main body, the front end of the wrench body have integrally formed fixing end, offer holding tank, the appearance in the wrench body
The interior hydraulic lock assembly for being equipped with the movable end that can be moved along fixed extreme direction and control movable end and moving of slot of receiving, feature exist
In: the hydraulic lock assembly include forward and backward hydraulic cylinder, the shut-off valve between forward and backward hydraulic cylinder and both ends respectively with work
The catch bar that moved end is connected with preceding hydraulic cylinder；Be additionally provided with the mobile self-locking device of locking movable end in the holding tank, it is described from
Locking device includes front end and the affixed positioning strip of movable end and the hold-down mechanism set on positioning strip rear end.
On this basis, the hold-down mechanism include set on rotary stop valve bottom oblong locating piece, touch plate,
It suppresses in the pressure block of the mobile pushing block of the round compression leg on positioning strip, the round compression leg of promotion, the round compression leg movement of limitation, institute
The one end for stating touch plate is contacted with oblong locating piece, and other one end is contacted with round compression leg.
On this basis, be equipped with elastic device and steel ball in the preceding hydraulic cylinder, one end of the elastic device with it is hollow
Screw is affixed, and the other end is connect with steel ball, before the hollow screw is fixed in hydraulic cylinder；Piston is equipped with after described in hydraulic cylinder
And propelling spring, described propelling spring one end are connect with piston, the other end is connect with holding tank inner face；It is described forward and backward hydraulic
The forward and backward runner for being connected to forward and backward hydraulic cylinder is additionally provided between cylinder, the preceding runner is interior preceding hydraulic to be connected to equipped with that can push steel ball
The contact of cylinder and preceding runner.
On this basis, the shut-off valve is rotary stop valve.
On this basis, the fixing end is enclosed shape fixing end.
On this basis, the fixing end is the polygon fixing end that front end has one 60 ° of angles.
On this basis, the horizontal sextant angle of the fixing end and wrench body is 10 °.
On this basis, the fixing end is the regular hexagon fixing end that front end has one 120 ° of angles.
On this basis, a sliding block that movable end can be pushed mobile is additionally provided on the movable end.
Compared with prior art, the beneficial effects of the present invention are:
The present invention locks the mobile self-locking device of movable end by being equipped in the holding tank of wrench body, not only working efficiency
Height, it is easy to operate, moreover it is possible to prevent manual operation is improper from hydraulic lock assembly generation being caused to vacuumize phenomenon.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the spanner that the present invention has self-locking function；
Fig. 2 is the structural schematic diagram of the self-locking device for the spanner that the present invention has self-locking function；
In figure: 1, wrench body, 2, fixing end, 3, movable end, 4, sliding block, 5, catch bar, 6, elastic device, 7, steel ball, 8, touching
Point, 9, shut-off valve, 10, piston, 11, propelling spring, 12, self-locking device, 13, positioning strip, 14, hold-down mechanism, 15, oblong it is fixed
Position block, 16, touch plate, 17, round compression leg, 18, pushing block, 19, pressure block, 20, fixed block, 21, parallel spring, 22, hollow
Screw.
Specific embodiment
Below in conjunction with drawings and examples, the present invention will be described in further detail.It should be appreciated that described herein
Specific examples are only used to explain the present invention, is not intended to limit the present invention.
As Figure 1-Figure 2, the present invention schematically illustrates a kind of spanner with self-locking function.
A kind of spanner with self-locking function of present disclosure, as depicted in figs. 1 and 2, including wrench body 1, spanner master
The front end of body 1 has integrally formed fixing end 2, holding tank is offered in wrench body 1, being equipped in holding tank can be along fixing end
The mobile movable end 3 in 2 directions and control movable end 3 mobile hydraulic lock assembly are additionally provided with locking movable end 3 in holding tank and move
Dynamic self-locking device 12, self-locking device 12 include front end with the affixed positioning strip 13 of movable end 3 and set on 13 rear end of positioning strip
Hold-down mechanism 14.A sliding block 4 that movable end 3 can be pushed mobile is additionally provided on spanner movable end 3.Self-locking device 12 can be positioning strip
13 compress to lock movable end 3, prevent manual operation improper, and hydraulic lock assembly generation is caused to vacuumize phenomenon；Hydraulic lock
Determine device include forward and backward hydraulic cylinder, the shut-off valve 9 between forward and backward hydraulic cylinder and both ends respectively with movable end 3 and preceding hydraulic
The catch bar 5 of cylinder connection.Certainly, which is rotary type shut-off valve 9.Propelling spring 11 of the catch bar 5 in rear hydraulic cylinder
Manually movable end 3 can be pushed to move under the collective effect of sliding block 4 along 2 direction of fixing end, air enters and adds in order to prevent
Strong operation intensity is additionally provided with sealing ring and oil sealing on the catch bar 5.Elastic device 6 and steel ball 7, elasticity are equipped in preceding hydraulic cylinder
One end of device 6 and hollow screw 22 are affixed, and the other end is connect with steel ball 7, before which is fixed in hydraulic cylinder；Afterwards
Piston 10 and propelling spring 11 are equipped in hydraulic cylinder, 11 one end of propelling spring is connect with piston 10, the other end and holding tank inner end
Face connection；The forward and backward runner for being connected to forward and backward hydraulic cylinder is additionally provided between forward and backward hydraulic cylinder, steel ball can be pushed by being equipped in preceding runner
7 with the contact 8 of hydraulic cylinder and preceding runner before connection.Hold-down mechanism 14 includes that the oblong set on 9 bottom of rotary stop valve is fixed
Position block 15 touches plate 16, compacting in the mobile pushing block 18 of the round compression leg 17 on positioning strip 13, the round compression leg 17 of promotion, limit
The mobile pressure block 19 of round compression leg 17, the one end for touching plate 16 are contacted with oblong locating piece 15, other one end and round pressure
Column 17 contacts, and the rear portion of the pushing block 18 is additionally provided with fixed block 20, is equipped between the fixed block 20 and pushing block 18 a pair of parallel
Spring 21, the fixed block 20 and holding tank inner end face contact simultaneously apply pressure to pushing block 18 by parallel spring 21.When with circle
When shape locating piece 15 compresses touch plate 16, hold-down mechanism 14 does not work；When oblong locating piece 15, which unclamps, touches plate 16, push
Block 18 and pressure block 19 act on round compression leg 17 in opposite directions and compress positioning strip 13, hold-down mechanism work, to make and positioning strip 13
Affixed movable end 3 locks；Certainly, fixing end 2 can be enclosed shape fixing end.Fixing end 2 is front end as a preferred method,
Polygon fixing end with one 60 ° of angles.The horizontal sextant angle of fixing end 2 and wrench body 1 is 10 °, improves the side of operation
Just property.In order to increase the working face to workpiece, fixing end 2 can have the regular hexagon fixing end of one 120 ° of angles for front end, this
When movable end 3 front end should also have 120 ° of angles.
Working principle:
Under normal circumstances, movable end 3 is moved along 2 direction of fixing end under the action of hydraulic lock assembly and is worked with fixing end 2
Face bonding, when the rotary stop valve 9 on spanner is in the state opened, rotary stop valve 9 pushes steel ball 7 by contact 8
It travels forward, preceding runner is opened.At this moment preceding hydraulic cylinder, the high pressure liquid pressure oil in rear hydraulic cylinder be in can Convection states, movable end 3
In mobilizable state, spanner is not locked.When needing to loosen, tighten nut, by pushing sliding block 4 backward, movable end 3 is driven
It is moved backward with catch bar 5, the high pressure liquid pressure oil in preceding hydraulic cylinder pushes hydraulic cylinder convection current backward, while convection current by catch bar 5
Hydraulic oil under the static pressure effect of liquid medium by piston 10 to pusher, spanner working hole opens.After nut is put into, activity
Nut is closely fixed on fixing end 2 and engaged between mouth and movable end 3 by end 3 under the action of propelling spring 11.Then, turn
Dynamic rotary stop valve 9 is in close state, and at this moment contact 8 disappears to the active force of steel ball 7, bullet of the steel ball 7 in elastic device 6
Power effect is lower to close front end runner, and the hydraulic oil convection current between preceding hydraulic cylinder and rear hydraulic cylinder is closed, preceding hydraulic cylinder and rear hydraulic
High pressure liquid pressure oil in cylinder stops convection current, and preceding hydraulic cylinder is in full closeding state, and the preceding hydraulic cylinder under closed state is catch bar 5
And movable end 3 provides the static pressure of liquid medium powerful enough, spanner realizes that hydraulic automatic locking closes.It is hydraulic automatic realizing
While locking, oblong locating piece 15, which unclamps, touches plate 16, and pushing block 18 and pressure block 19 act on round compression leg 17 in opposite directions
Positioning strip 13 is compressed, hold-down mechanism 14 works, so that the movable end 3 affixed with positioning strip 13 be made to lock.Then, rotation is rotary
Shut-off valve 9 is in the open state, and when at this moment oblong locating piece 15 compresses touch plate 16, hold-down mechanism 14 does not work.Circle pressure
Column 17 discharges positioning strip 13, and hydraulic lock assembly can be adjusted again.When the opening that fixing end 2 engages mouth is greater than nut
When diameter, while progress nut loosens, tighten operation, the state that open or close for changing shut-off valve 9 can be passed through, carry out spanner
Commutation, the mouth of pulling of spanner do not have to leave fastening nut generally and can also clamp clamping of workpieces again, improves working efficiency.
The preferred embodiment of the present invention has shown and described in above description, as previously described, it should be understood that the present invention is not limited to
Form disclosed herein should not be regarded as an exclusion of other examples, and can be used for various other combinations, modification and ring
Border, and can within that scope of the inventive concept describe herein, modifications can be made through the above teachings or related fields of technology or knowledge.
And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be in right appended by the present invention
It is required that protection scope in.
Claims (9)
1. the front end of a kind of spanner with self-locking function, including wrench body, the wrench body has integrally formed consolidate
Fixed end offers holding tank in the wrench body, be equipped in the holding tank can along the movable end that fixed extreme direction moves and
Control the mobile hydraulic lock assembly of movable end, it is characterised in that: the hydraulic lock assembly includes forward and backward hydraulic cylinder, is set to
The catch bar that shut-off valve and both ends between forward and backward hydraulic cylinder are connect with movable end and preceding hydraulic cylinder respectively；In the holding tank
It is additionally provided with the mobile self-locking device of locking movable end, the self-locking device includes that front end affixed positioning strip and is set to movable end
The hold-down mechanism of positioning strip rear end.
2. the spanner according to claim 2 with self-locking function, it is characterised in that: the hold-down mechanism includes being set to rotation
The oblong locating piece of rotatable shut-off valve bottom touches plate, compacting in the round compression leg on positioning strip, the round compression leg movement of promotion
Pushing block, limit the mobile pressure block of round compression leg, described one end for touching plate is contacted with oblong locating piece, other one end and
Round compression leg contact.
3. the spanner according to claim 2 with self-locking function, it is characterised in that: be equipped with elasticity in the preceding hydraulic cylinder
One end of device and steel ball, the elastic device is affixed with hollow screw, and the other end is connect with steel ball, and the hollow screw is fixed
In preceding hydraulic cylinder；Piston and propelling spring are equipped with after described in hydraulic cylinder, described propelling spring one end is connect with piston, another
End is connect with holding tank inner face；The forward and backward runner for being connected to forward and backward hydraulic cylinder is additionally provided between the forward and backward hydraulic cylinder, it is described
Steel ball can be pushed to be connected to the contact of preceding hydraulic cylinder and preceding runner by being equipped in preceding runner.
4. the spanner according to claim 2 with self-locking function, it is characterised in that: the shut-off valve is rotary cut-off
Valve.
5. the spanner according to claim 1 with self-locking function, it is characterised in that: the fixing end is fixed for enclosed shape
End.
6. the spanner according to claim 1 with self-locking function, it is characterised in that: the fixing end is that front end has one
The polygon fixing end of 60 ° of angles.
7. the spanner according to claim 1 with self-locking function, it is characterised in that: the fixing end and wrench body
Horizontal sextant angle is 10 °.
8. the spanner according to claim 1 with self-locking function, it is characterised in that: the fixing end is that front end has one
The regular hexagon fixing end of 120 ° of angles.
9. the spanner according to claim 1 with self-locking function, it is characterised in that: being additionally provided with one on the movable end can
The sliding block for pushing movable end mobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423126.4A CN109202789A (en) | 2018-11-27 | 2018-11-27 | A kind of spanner with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423126.4A CN109202789A (en) | 2018-11-27 | 2018-11-27 | A kind of spanner with self-locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109202789A true CN109202789A (en) | 2019-01-15 |
Family
ID=64994608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811423126.4A Pending CN109202789A (en) | 2018-11-27 | 2018-11-27 | A kind of spanner with self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109202789A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113830415A (en) * | 2021-09-29 | 2021-12-24 | 江苏泰明易自动化设备有限公司 | New forms of energy power generation equipment accessory conveyer |
-
2018
- 2018-11-27 CN CN201811423126.4A patent/CN109202789A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113830415A (en) * | 2021-09-29 | 2021-12-24 | 江苏泰明易自动化设备有限公司 | New forms of energy power generation equipment accessory conveyer |
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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: 20190115 |
|
| WD01 | Invention patent application deemed withdrawn after publication |