CN107097164A - A kind of three-jaw movable ratchet carring hand - Google Patents
A kind of three-jaw movable ratchet carring hand Download PDFInfo
- Publication number
- CN107097164A CN107097164A CN201710417804.5A CN201710417804A CN107097164A CN 107097164 A CN107097164 A CN 107097164A CN 201710417804 A CN201710417804 A CN 201710417804A CN 107097164 A CN107097164 A CN 107097164A
- Authority
- CN
- China
- Prior art keywords
- ratchet
- carring
- nut
- dog plate
- hand
- 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.)
- Granted
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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
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
- B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
- B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
- B25B13/463—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an externally toothed wheel
-
- 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
- B25B13/44—Spanners; Wrenches of the chuck type
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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 proposes a kind of three-jaw movable ratchet carring hand, solve that bayonet fixing plate spanner is poor for applicability, movable mouth spanner fragile nut the problem of.The present invention includes claw, lower ejector lever frame, ratchet dog plate, end-face helical set, upper ejector lever frame, clamping sleeve, allocates head, pin one, ratchet, steel ball, spring and pin two.Advantages of the present invention：Three-jaw movable ratchet carring hand is designed according to the clamping principle of scroll chuck, three-jaw is arranged into 120 ° of angles, be characterized in clamping force it is big, can automatic centring, three-jaw movable ratchet carring hand contacts completion clamping by three uniform faces of three claws and six-sided nut, have the advantages that clamping force is big, be difficult to damage nut.The spanner of the present invention is applied to have Yuan Xing ﹑ equilateral triangles, the nut or screw of regular hexagon termination, with good adaptability.
Description
Technical field
The present invention relates to the common tool of assembling, maintenance and domestic environments, a kind of three-jaw movable ratchet carring is particularly related to
Hand.
Background technology
With the development of society, mechanized equipment, automobile making, textile industry and agricultural are more and more to the demand of machine.
Along with the use of machine, the part of maintenance and maintenance as routine work.
, it is necessary to tighten nut using the spanner of all size to reach connection in the final assembly of machine and automobile making
Purpose, in daily life to machine maintenance and maintenance when, be frequently encountered some nuts and screw get rusty or connected
Tightly, the hexagonal rib of nut, screw not loose unloading or nut, screw is caused by the flat situation of fork spanner card.
Current ratchet spanner is largely that bayonet socket is fixed, i.e., a set of spanner is equipped with the sleeve of plurality of specifications, is also lived
Open one's mouth spanner.Bayonet fixing spanner, carries inconvenient, adaptability is poor, only when to the use of a certain size nut compared with
For convenience.Movable mouth spanner can apply to tightening and loose unloading for different size nuts, but be due to traditional movable mouth spanner
Only two claws, only have two with the contact surface of nut, it some times happens that moving jaw fixes not tight phenomenon to nut, pull
Easily there is slip phenomenon during turning in hand, and nut is caused to damage.
The content of the invention
The present invention proposes a kind of three-jaw movable ratchet carring hand, solves that bayonet fixing plate spanner is poor for applicability, activity
The problem of mouth spanner fragile nut.
The technical proposal of the invention is realized in this way：A kind of three-jaw movable ratchet carring hand, including lower ejector lever frame, ratchet
Dog plate is arranged in the end endoporus of lower ejector lever frame, and end-face helical set is installed in ratchet dog plate, the bottom of ratchet dog plate
Portion can be moved provided with three locating grooves for installing claw, claw in locating groove, the lower surface of end-face helical set and card
The upper surface of pawl is connected through a screw thread provided with the end-face helical cooperated, clamping sleeve with ratchet dog plate, end-face helical set
The internal diameter of external diameter and clamping sleeve has gap, and end-face helical is enclosed in ratchet dog plate and can freely rotated, and upper ejector lever frame is pulled with
Hand cradle is fixed by pin two and is riveted together, and ratchet, steel ball and spring are installed along between lower ejector lever frame and upper ejector lever frame
Neck in, ratchet is meshed with ratchet dog plate, and pin one is fixedly connected with ratchet, is allocated head and is fixedly connected with pin one,
Spring top clamping steel ball, steel ball is withstood in the groove of ratchet bottom.
Described ratchet is provided with left and right two teeth portion being meshed with ratchet dog plate, and the bottom of ratchet is provided with two
The groove coordinated with steel ball.
The top of described end-face helical set is provided with reticulate pattern is cylindrical, straight burr is cylindrical or regular hexagon termination.
Advantages of the present invention：Three-jaw movable ratchet carring hand is designed according to the clamping principle of scroll chuck, three
Pawl arranges into 120 ° of angles, be characterized in clamping force it is big, can automatic centring, three-jaw movable ratchet carring hand passes through three claws
Completion clamping is contacted with three uniform faces of six-sided nut, has the advantages that clamping force is big, be difficult to damage nut.
Meanwhile, three-jaw movable ratchet carring hand is adapted to tightening and unscrewing for different size nuts.When in screw
After hexagon ring or cross recess are slipped, it is impossible to dismantled using inner hexagon spanner or Phillips screwdriver, the ratchet spanner
Three claws can clamp hexagon socket cap head screw, the socket cap of cross recess fillister head screw, realize twisting for fillister head screw
It is tight and unscrew.Therefore, spanner of the invention is applied to have Yuan Xing ﹑ equilateral triangles, the nut or screw of regular hexagon termination, tool
There is good adaptability.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the assembling design sketch of three-jaw movable ratchet carring hand of the present invention.
Fig. 2 is the exploded view of three-jaw movable ratchet carring hand of the present invention.
Fig. 3 is that three-jaw movable ratchet carring hand of the present invention twists nut schematic diagram clockwise.
Fig. 4 is that three-jaw movable ratchet carring hand of the present invention twists nut schematic diagram counterclockwise.
Fig. 5 is three-jaw movable ratchet carring hand operating diagram of the present invention.
In figure：Claw -1, lower ejector lever frame -2, ratchet dog plate -3, end-face helical set -4, upper ejector lever frame -5, clamping sleeve -6,
Allocate head -7, pin one -8, ratchet -9, steel ball -10, spring -11, pin two -12.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not paid
Embodiment, belongs to the scope of protection of the invention.
As shown in Fig. 1 ~ 5, a kind of three-jaw movable ratchet carring hand, including lower ejector lever frame 2, ratchet dog plate 3 is arranged on down
In the end endoporus of wrench rack 2, end-face helical set 4 is installed in ratchet dog plate 3, and the bottom of ratchet dog plate 3 is provided with installation
Three locating grooves of claw 1, claw 1 can be moved along neck direction in locating groove, the lower surface of end-face helical set 4 and
The upper surface of claw 1 is connected through a screw thread provided with the end-face helical cooperated, clamping sleeve 6 with ratchet dog plate 3, end-face helical
The external diameter of set 4 has gap with the internal diameter of clamping sleeve 6, and end-face helical set 4 can be rotated freely in ratchet dog plate 3, upper ejector lever
Frame 5 is fixed by pin 2 12 with lower ejector lever frame 2 and is riveted together, and ratchet 9, steel ball 10 are installed along with lower ejector lever with spring 11
In neck between frame 2 and upper ejector lever frame 5, ratchet 9 is meshed with ratchet dog plate 3, and pin 1 is fixedly connected with ratchet 9, point
Shifting block 7 is fixedly connected with pin 1, and spring 11 holds out against steel ball 10, and steel ball 10 is withstood in the groove of the bottom of ratchet 9.
Described ratchet 9 is provided with left and right two teeth portion being meshed with ratchet dog plate 3, and the bottom of ratchet 9 is provided with left and right
Two with steel ball 10 coordinate groove.
The top of described end-face helical set 4 is provided with reticulate pattern is cylindrical, straight burr is cylindrical or regular hexagon termination.
Operation principle：The lower surface of end-face helical set 4, which is machined with end-face helical, the upper surface processing of three claws 1, to be had
The end-face helical identical screw thread for covering 4 with end-face helical is matched, when turning the top of end face thread bush 4 with hand or spanner
Straight burr is cylindrical or during regular hexagon termination, the flat thread that end-face helical covers 4 lower surfaces just makes three claws 1 while radially
It is mobile, it is close or exit to center, drive three self-centerings of claw 1, clamping of the realization to nut or screw.
With reference to Fig. 3, Fig. 4 and Fig. 5, in the presence of spring 11, steel ball 10 enters the bottom groove of ratchet 9, by stirring
First 7 are allocated, steel ball 10 is alternately withstood in left and right two grooves of ratchet, positioning limitation is carried out to ratchet 9, ratchet 9 can be achieved
Left and right two teeth portion are alternately engaged with ratchet dog plate 3, realize that ratchet dog plate 3 follows lower ejector lever frame 2 clockwise or inverse respectively
When needle movement, so that tightening and unclamp to nut or screw is realized, due to ratchet dog plate 3, two teeth portion of ratchet 9, ratchet 9
Pivot not point-blank, therefore, when the rotational band pawl 9 of lower ejector lever frame 2 is rotated, ratchet 9 will not be around ratchet card
Pawl disk 3 rotates, but sticks ratchet dog plate 3 and rotate, and reaches the purpose twisted to nut or screw.
The loose unloading of general screw connection point is carried out by way of twisting off nut, and spiral shell need to be only overcome under normal circumstances
Frictional force produced by bolt pretightning force, so stress is not very big.But when nut gets rusty, it is necessary to which greatly screwing force could pine
Unload.Present design uses the clamping principle of scroll chuck, realizes the clamping to nut, and the clamping force to nut is big, to three-jaw
The part or nut of clamping provide enough clamping forces.Meanwhile, spanner of the invention be applied to Yuan Xing ﹑ equilateral triangles,
The nut or screw of regular hexagon termination, with good adaptability.
In real life, the spanner form used is fork spanner, adjustable wrench, box spanner, and fork spanner is one end or two
There is the structure type of fixed dimension opening at end, and adjustable wrench is the structure shape that A/F can be adjusted in the range of certain size
Formula, box spanner is by multiple sleeves with hexagon ring or 12 corner apertures and equipped with the structure shape of the multiple accessories such as handle, extension bar
Formula, either fork spanner or monkey wrench can cause the impaired phenomenon of nut or bolt when twisting nut or bolt, all, very
Can extremely occur the phenomenon that hexagonal seamed edge is fallen by card, box spanner solves the generation of nut or bolt damage situations, but sleeve
Spanner is non-adjustable, pretension or can only unscrew the screw bolt and nut of a certain specific standard.It can be solved using three-pawl type clamping mode
Nut is unlikely to make the hexagonal seamed edge of nut to wear and tear in the case where tightening or unscrewing.
The other end for covering 4 in end-face helical makes that reticulate pattern is cylindrical, straight burr is cylindrical or regular hexagon termination, and the purpose is to make
People has larger frictional force when turning end face thread bush.When twisting the voluble nut of appearance, end-face helical is turned with hand
Set 4 can be achieved with clamping of three claws to nut.When twisting the nut got rusty, end-face helical set is twisted with general spanner
The regular hexagon termination on 4 tops, Driving plane thread bush rotation drives three-jaw movement to clamp the dead nut of rust, bigger to obtain
Clamping force.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (3)
1. a kind of three-jaw movable ratchet carring hand, including lower ejector lever frame（2）, it is characterised in that：Ratchet dog plate（3）It is arranged on down
Wrench rack（2）End endoporus in, end-face helical set（4）It is installed to ratchet dog plate（3）In, ratchet dog plate（3）Bottom
Provided with installation claw（1）Three locating grooves, claw（1）It can be moved in locating groove, end-face helical set（4）Lower end
Face and claw（1）Upper surface provided with cooperate end-face helical, clamping sleeve（6）With ratchet dog plate（3）Connected by screw thread
Connect, end-face helical set（4）External diameter and clamping sleeve（6）Internal diameter have gap, end-face helical set（4）In ratchet dog plate（3）In
Can freely it rotate, upper ejector lever frame（5）With lower ejector lever frame（2）Pass through pin two（12）Fixation is riveted together, ratchet（9）, steel
Pearl（10）With spring（11）It is installed along with lower ejector lever frame（2）With upper ejector lever frame（5）Between neck in, ratchet（9）With ratchet
Dog plate（3）It is meshed, pin one（8）With ratchet（9）It is fixedly connected, allocates head（7）With pin one（8）It is fixedly connected, spring
（11）Hold out against steel ball（10）, steel ball（10）Withstand on ratchet（9）In the groove of bottom.
2. three-jaw movable ratchet carring hand according to claim 1, it is characterised in that：Described ratchet（9）Provided with it is left,
Right two and ratchet dog plate（3）The teeth portion being meshed, ratchet（9）Bottom provided with left and right two and steel ball（10）What is coordinated is recessed
Groove.
3. three-jaw movable ratchet carring hand according to claim 1, it is characterised in that：Described end-face helical set（4）'s
Top is provided with reticulate pattern is cylindrical, straight burr is cylindrical or regular hexagon termination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710417804.5A CN107097164B (en) | 2017-06-06 | 2017-06-06 | Three-jaw movable ratchet wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710417804.5A CN107097164B (en) | 2017-06-06 | 2017-06-06 | Three-jaw movable ratchet wrench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107097164A true CN107097164A (en) | 2017-08-29 |
| CN107097164B CN107097164B (en) | 2020-03-10 |
Family
ID=59660008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710417804.5A Active CN107097164B (en) | 2017-06-06 | 2017-06-06 | Three-jaw movable ratchet wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107097164B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109318162A (en) * | 2018-11-16 | 2019-02-12 | 国家电网有限公司 | A kind of novel monkey wrench |
| CN112775881A (en) * | 2020-12-24 | 2021-05-11 | 刘可夫 | Spanner of mobile regulation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2362654Y (en) * | 1998-10-26 | 2000-02-09 | 严竣译 | Adjustable ratchet wrench |
| US20140260818A1 (en) * | 2013-03-14 | 2014-09-18 | Wen Hung Chiang | Adjustable wrench device |
| CN204525279U (en) * | 2015-04-20 | 2015-08-05 | 三峡大学 | The adjustable ratchet wrench of a kind of energy rotating |
| CN204525278U (en) * | 2015-04-20 | 2015-08-05 | 三峡大学 | A kind of adjustable ratchet wrench |
| WO2016119134A1 (en) * | 2015-01-28 | 2016-08-04 | 杭州巨星工具有限公司 | Adjustable wrench |
| CN206780247U (en) * | 2017-06-06 | 2017-12-22 | 郑州轻工业学院 | A kind of three-jaw movable ratchet carring hand |
-
2017
- 2017-06-06 CN CN201710417804.5A patent/CN107097164B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2362654Y (en) * | 1998-10-26 | 2000-02-09 | 严竣译 | Adjustable ratchet wrench |
| US20140260818A1 (en) * | 2013-03-14 | 2014-09-18 | Wen Hung Chiang | Adjustable wrench device |
| WO2016119134A1 (en) * | 2015-01-28 | 2016-08-04 | 杭州巨星工具有限公司 | Adjustable wrench |
| CN204525279U (en) * | 2015-04-20 | 2015-08-05 | 三峡大学 | The adjustable ratchet wrench of a kind of energy rotating |
| CN204525278U (en) * | 2015-04-20 | 2015-08-05 | 三峡大学 | A kind of adjustable ratchet wrench |
| CN206780247U (en) * | 2017-06-06 | 2017-12-22 | 郑州轻工业学院 | A kind of three-jaw movable ratchet carring hand |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109318162A (en) * | 2018-11-16 | 2019-02-12 | 国家电网有限公司 | A kind of novel monkey wrench |
| CN112775881A (en) * | 2020-12-24 | 2021-05-11 | 刘可夫 | Spanner of mobile regulation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107097164B (en) | 2020-03-10 |
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