CN103170934B - Adjustable wrench head of torque wrench - Google Patents
Adjustable wrench head of torque wrench Download PDFInfo
- Publication number
- CN103170934B CN103170934B CN201210585423.5A CN201210585423A CN103170934B CN 103170934 B CN103170934 B CN 103170934B CN 201210585423 A CN201210585423 A CN 201210585423A CN 103170934 B CN103170934 B CN 103170934B
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- Prior art keywords
- rod
- notch
- connecting rod
- adjusting rod
- wrench
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention relates to the field of assembling tools, and aims to provide an adjustable wrench head of a torque wrench. The adjustable wrench head of the torque wrench comprises a connection rod, two wrench claws and two adjustment levers, wherein one end of the connection rod is symmetrically provided with two protruding blocks, and the two wrench claws and the two adjustment levers are between the two protruding blocks. V-shaped notches are formed in opposite sides of the two wrench claws. The inclined angle between two side edges of each V-shaped notche is 120 degrees. One side edges of the two V-shaped notches are parallel to a shaft section of the connection rod. The other side edges of the two V-shaped notches form a closed end. Rod holes are formed in the two protruding blocks. The diameters of the rod holes are matched with the outer diameters of the adjustment levers. One end of each adjustment lever penetrates through one rod hole of one protruding block and is fixedly connected with one wrench claw. The angle-bisecting of the inclined angle between the two side edges of the V-shaped notches is coincided with the shaft section of the connection rod. The adjustable wrench head of the torque wrench is provided with a drive mechanism used for driving the adjustment levers to do axial motion. The adjustable wrench head of the torque wrench is suitable for fastening pieces with different specifications, and is high in working efficiency.
Description
Technical field
The present invention relates to assembly tool field, especially a kind of adjustable wrench head of torque wrench.
Background technology
Torque spanner tights a bolt, the common tool of the securing members such as nut, a kind of torque spanner of the disclosure of the invention of Chinese patent notification number CN101653932A, comprise outer sleeve, pulling head, regulate the torsion adjustment member of the torque settings of spanner, inner sleeve and make the flag member of mark when torsion reaches setting value on securing member, internal spindle is disposed with from its one end towards the other end in outer sleeve, spacing connecting rod, driver part and elastic component, the two ends of internal spindle are connected with pulling head and spacing connecting rod respectively, the other end of spacing connecting rod and the end thereof contacts of driver part, the two ends of elastic component are connected with one end of torsion adjustment member with the other end of driver part respectively, spacing connecting rod, driver part and elastic component are positioned at inner sleeve and spacing connecting rod position is between its ends between pivotably connected on the inwall of inner sleeve, flag member is connected with pulling head with spacing connecting rod respectively.The pulling head of this torque spanner needs the pulling head changing different size when there is the securing member being used for different size, the deficiency that operating efficiency is lower; Therefore, design and be a kind ofly suitable for the higher adjustable wrench head of torque wrench of multiple different size securing member operating efficiency, become problem demanding prompt solution.Securing member pivot
Summary of the invention
The pulling head that the object of the invention is to overcome current torque spanner needs the pulling head changing different size when there is the securing member for different size, the deficiency that operating efficiency is lower, there is provided a kind of and be suitable for multiple different size securing member, the adjustable wrench head of torque wrench that operating efficiency is higher.
Concrete technical scheme of the present invention is:
A kind of adjustable wrench head of torque wrench, comprise one end be arranged with two projections connecting rod, be symmetrical in two an of shaft section of connecting rod and pull pawl and two adjusting rods between two projections; Two opposite sides pulling pawl are respectively provided with a V-notch; Angle between V-notch dual-side is 120 degree; One side of two V-notch is parallel with a shaft section of connecting rod respectively; Another side of two V-notch forms closing end; Two projections are respectively provided with the rod aperture that diameter mates with the external diameter of adjusting rod; One end of each adjusting rod is pulled pawl through the rod aperture of a projection to be fixedly connected with and the dual-side of V-notch, the equidistant point of angle overlaps with a shaft section of adjusting rod with one; Described adjustable wrench head of torque wrench is provided with the driving mechanism for adjusting rod axially-movable.When this adjustable wrench head of torque wrench uses, fix with hold-down screw outside the one end counterbore of connecting rod being enclosed within the connector of torque spanner; The securing members such as the head of outer-hexagonal bolt needing to tighten or outer-hexagonal nut are placed between two V-notch, and turn master bevel gear makes two to pull pawl to close up and make the dual-side of each V-notch push down the respective side edge of the securing members such as the head of outer-hexagonal bolt or outer-hexagonal nut respectively; Two intersection points pulling pawl movement locus are the central point of securing member, ensure that namely the central point of securing member is the pivot of torque spanner, the distance of the central point distance torque spanner end of securing member can not change because of varying in size of securing member, the lever ratio of torque spanner so also would not be caused to change and cause the problem of moment of torsion misalignment to occur.This adjustable wrench head of torque wrench is suitable for multiple different size securing member, and operating efficiency is higher.
As preferably, two described projections are respectively provided with a bevel gear breach, and adjusting rod is screw rod; Described driving mechanism comprise be enclosed within connecting rod outer and with the master bevel gear of connecting rod pivot joint and two symmetrically arranged driven wheels of differential; Each driven wheel of differential is positioned at a bevel gear breach and is threaded with an adjusting rod and engages with master bevel gear.Driving mechanism structure is simple and practical.
A kind of adjustable wrench head of torque wrench, comprise one end be arranged with two projections connecting rod, be symmetrical in two an of shaft section of connecting rod and pull pawl and two adjusting rods between two projections; Two opposite sides pulling pawl are respectively provided with a V-notch; Angle between V-notch dual-side is 90 degree; The equidistant point of angle and the axes normal of adjusting rod between the dual-side of V-notch; The length of one side of V-notch is less than the length of another side; Another side of two V-notch forms closing end; Two projections are respectively provided with the rod aperture that diameter mates with the external diameter of adjusting rod; One end of each adjusting rod is pulled pawl through the rod aperture of a projection to be fixedly connected with and the dual-side of V-notch, the equidistant point of angle overlaps with a shaft section of adjusting rod with one; Described adjustable wrench head of torque wrench is provided with the driving mechanism for adjusting rod axially-movable.When this adjustable wrench head of torque wrench uses, fix with hold-down screw outside the one end counterbore of connecting rod being enclosed within the connector of torque spanner; The securing members such as the head of outer four corner bolts needing to tighten or outer tetragonal nut are placed between two V-notch, and turn handwheel makes two to pull pawl to close up and make the dual-side of each V-notch push down the respective side edge of the securing members such as the head of four corner bolts outward or outer tetragonal nut respectively; Two intersection points pulling pawl movement locus are the central point of securing member, ensure that namely the central point of securing member is the pivot of torque spanner, the distance of the central point distance torque spanner end of securing member can not change because of varying in size of securing member, the lever ratio of torque spanner so also would not be caused to change and cause the problem of moment of torsion misalignment to occur.This adjustable wrench head of torque wrench is suitable for multiple different size securing member, and operating efficiency is higher.
As preferably, two described projections are respectively provided with a driven gear breach, and adjusting rod is screw rod; Described driving mechanism comprise two to be each positioned in a driven gear breach and the driven gear be threaded with an adjusting rod, two driving gears laying respectively at adjusting rod both sides and through connecting rod and with the bull stick of connecting rod pivot joint; Two driving gears are enclosed within bull stick and are fixedly connected with bull stick outward and respectively engage with a driven gear.Driving mechanism structure is simple and practical.
As preferably, one end of described bull stick is provided with handwheel.Rotation power-saving.
As preferably, the end face of the other end of described connecting rod is provided with the counterbore of the dead in line of center and connecting rod; The shape of cross section of counterbore is square or regular hexagon; The outside of connecting rod is arranged with the fixing threaded hole through with a side of counterbore.Counterbore and fixing threaded hole make with the connector of torque spanner firmly easy to connect.
Compared with prior art, the invention has the beneficial effects as follows: one. this adjustable wrench head of torque wrench is suitable for multiple different size securing member, and operating efficiency is higher.Two. driving mechanism structure is simple and practical.Three. counterbore and fixing threaded hole make with the connector of torque spanner firmly easy to connect.Four. be provided with handwheel rotation power-saving.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 2.
In figure: connecting rod-1, projection-11, rod aperture-12, bevel gear breach-13, counterbore-14, fixing threaded hole-15, driven gear breach-16, pull pawl-2, V-notch-21, adjusting rod-3, closing end-4, master bevel gear-5, driven wheel of differential-6, driven gear-7, driving gear-8, bull stick-9, handwheel-10.
Detailed description of the invention
Below in conjunction with shown in accompanying drawing, the present invention is described further.
Embodiment 1, as shown in Figure 1: a kind of adjustable wrench head of torque wrench, comprise one end symmetry have two projections 11 connecting rod 1, be symmetrical in two an of shaft section of connecting rod 1 and pull pawl 2 and two adjusting rods 3 between two projections 11; Two opposite sides pulling pawl 2 are respectively provided with a V-notch 21; Angle between V-notch 21 dual-side is 120 degree; One side of two V-notch 21 is parallel with a shaft section of connecting rod 1 respectively; Another side of two V-notch 21 forms closing end 4; Two projections 11 respectively have the rod aperture 12 that diameter coordinates with the crest clearance of adjusting rod 3; One end of each adjusting rod 3 is pulled pawl 2 through the rod aperture 12 of a projection 11 to be fixedly connected with and the dual-side of V-notch 21, the equidistant point of angle overlaps with a shaft section of adjusting rod 3 with one; Described adjustable wrench head of torque wrench has the driving mechanism for adjusting rod 3 axially-movable.
In the present embodiment, two described projections 11 respectively have a bevel gear breach 13, and adjusting rod 3 is screw rod; Described driving mechanism comprises that to be enclosed within connecting rod 1 outer and with connecting rod 1 by the master bevel gear 5 of bearing hinge joint and two symmetrically arranged driven wheels of differential 6; Each driven wheel of differential 6 is positioned at a bevel gear breach 13 and is threaded with an adjusting rod 3 and engages with master bevel gear 5.
The end face of the other end of described connecting rod 1 has the counterbore 14 of the dead in line of center and connecting rod 1; The shape of cross section of counterbore 14 is square; The outer gusset of connecting rod 1 has the fixing threaded hole 15 through with a side of counterbore 14.
When this adjustable wrench head of torque wrench uses, fix with hold-down screw outside the one end counterbore 14 of connecting rod 1 being enclosed within the connector of torque spanner; The securing members such as the head of outer-hexagonal bolt needing to tighten or outer-hexagonal nut are placed between two V-notch 21, turn master bevel gear 5 make two pull pawl 2-in-1 hold together and make the dual-side of each V-notch 21 push down the respective side edge of the securing members such as the head of outer-hexagonal bolt or outer-hexagonal nut respectively; Two intersection points pulling pawl 2 movement locus are the central point of securing member, ensure that namely the central point of securing member is the pivot of torque spanner, the distance of the central point distance torque spanner end of securing member can not change because of varying in size of securing member, the lever ratio of torque spanner so also would not be caused to change and cause the problem of moment of torsion misalignment to occur.
The beneficial effect of the embodiment of the present invention 1 is: this adjustable wrench head of torque wrench is suitable for multiple different size securing member, and operating efficiency is higher.Driving mechanism structure is simple and practical.Counterbore and fixing threaded hole make with the connector of torque spanner firmly easy to connect.
Embodiment 2, as shown in Figure 2: a kind of adjustable wrench head of torque wrench, comprise one end symmetry have two projections 11 connecting rod 1, be symmetrical in two an of shaft section of connecting rod 1 and pull pawl 2 and two adjusting rods 3 between two projections 11; Two opposite sides pulling pawl 2 are respectively provided with a V-notch 21; Angle between V-notch 21 dual-side is 90 degree; The equidistant point of angle and the axes normal of adjusting rod 3 between the dual-side of V-notch 21; The length of one side of V-notch 21 is less than the length of another side; Another side of two V-notch 21 forms closing end 4; Two projections 11 respectively have the rod aperture 12 that diameter coordinates with the crest clearance of adjusting rod 3; One end of each adjusting rod 3 is pulled pawl 2 through the rod aperture 12 of a projection 11 to be fixedly connected with and the dual-side of V-notch 21, the equidistant point of angle overlaps with a shaft section of adjusting rod 3 with one; Described adjustable wrench head of torque wrench has the driving mechanism for adjusting rod 3 axially-movable.
In the present embodiment, two described projections 11 respectively have a driven gear breach 16, and adjusting rod 3 is screw rod; Described driving mechanism comprise two to be each positioned in a driven gear breach 16 and the driven gear 7, two be threaded with an adjusting rod 3 lay respectively at adjusting rod 3 both sides driving gear 8 and through connecting rod 1 and with the bull stick 9 of connecting rod 1 by bearing hinge joint; Two driving gears 8 are enclosed within and also respectively engage with a driven gear 7 bull stick 9 outer connection with bull stick 9 key.
One end of described bull stick 9 has handwheel 10.
The end face of the other end of described connecting rod 1 has the counterbore 14 of the dead in line of center and connecting rod 1; The shape of cross section of counterbore 14 is square or regular hexagon; The outer gusset of connecting rod 1 has the fixing threaded hole 15 through with a side of counterbore 14.
When this adjustable wrench head of torque wrench uses, fix with hold-down screw outside the one end counterbore 14 of connecting rod 1 being enclosed within the connector of torque spanner; The securing members such as the head of outer four corner bolts needing to tighten or outer tetragonal nut are placed between two V-notch 21, turn handwheel 10 make two pull pawl 2-in-1 hold together and make the dual-side of each V-notch 21 push down the respective side edge of the securing members such as the head of four corner bolts outward or outer tetragonal nut respectively; Two intersection points pulling pawl 2 movement locus are the central point of securing member, ensure that namely the central point of securing member is the pivot of torque spanner, the distance of the central point distance torque spanner end of securing member can not change because of varying in size of securing member, the lever ratio of torque spanner so also would not be caused to change and cause the problem of moment of torsion misalignment to occur.
The beneficial effect of the embodiment of the present invention 2 is: this adjustable wrench head of torque wrench is suitable for multiple different size securing member, and operating efficiency is higher.Driving mechanism structure is simple and practical.Counterbore and fixing threaded hole make with the connector of torque spanner firmly easy to connect.Be provided with handwheel rotation power-saving.
It is apparent to one skilled in the art that the present invention can change into various ways, and such change is not thought and departed from the scope of the present invention.All like this to the apparent amendment of the technical staff in described field, by be included in the claims in the present invention protection domain within.
Claims (4)
1. an adjustable wrench head of torque wrench, is characterized in that, comprise one end be arranged with two projections connecting rod, be symmetrical in two an of shaft section of connecting rod and pull pawl and two adjusting rods between two projections; Two opposite sides pulling pawl are respectively provided with a V-notch; Angle between V-notch dual-side is 120 degree; One side of two V-notch is parallel with a shaft section of connecting rod respectively; Another side of two V-notch forms closing end; Two projections are respectively provided with the rod aperture that diameter mates with the external diameter of adjusting rod; One end of each adjusting rod is pulled pawl through the rod aperture of a projection to be fixedly connected with and the dual-side of V-notch, the equidistant point of angle overlaps with a shaft section of adjusting rod with one; Described adjustable wrench head of torque wrench is provided with the driving mechanism for adjusting rod axially-movable; Two described projections are respectively provided with a bevel gear breach, and adjusting rod is screw rod; Described driving mechanism comprise be enclosed within connecting rod outer and with the master bevel gear of connecting rod pivot joint and two symmetrically arranged driven wheels of differential; Each driven wheel of differential is positioned at a bevel gear breach and is threaded with an adjusting rod and engages with master bevel gear.
2. an adjustable wrench head of torque wrench, is characterized in that, comprise one end be arranged with two projections connecting rod, be symmetrical in two an of shaft section of connecting rod and pull pawl and two adjusting rods between two projections; Two opposite sides pulling pawl are respectively provided with a V-notch; Angle between V-notch dual-side is 90 degree; The equidistant point of angle and the axes normal of adjusting rod between the dual-side of V-notch; The length of one side of V-notch is less than the length of another side; Another side of two V-notch forms closing end; Two projections are respectively provided with the rod aperture that diameter mates with the external diameter of adjusting rod; One end of each adjusting rod is pulled pawl through the rod aperture of a projection to be fixedly connected with and the dual-side of V-notch, the equidistant point of angle overlaps with a shaft section of adjusting rod with one; Described adjustable wrench head of torque wrench is provided with the driving mechanism for adjusting rod axially-movable; Two described projections are respectively provided with a driven gear breach, and adjusting rod is screw rod; Described driving mechanism comprise two to be each positioned in a driven gear breach and the driven gear be threaded with an adjusting rod, two driving gears laying respectively at adjusting rod both sides and through connecting rod and with the bull stick of connecting rod pivot joint; Two driving gears are enclosed within bull stick and are fixedly connected with bull stick outward and respectively engage with a driven gear.
3. adjustable wrench head of torque wrench according to claim 2, is characterized in that: one end of described bull stick is provided with handwheel.
4., according to the arbitrary described adjustable wrench head of torque wrench of claims 1 to 3, it is characterized in that: the end face of the other end of described connecting rod is provided with the counterbore of the dead in line of center and connecting rod; The shape of cross section of counterbore is square or regular hexagon; The outside of connecting rod is arranged with the fixing threaded hole through with a side of counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210585423.5A CN103170934B (en) | 2012-12-28 | 2012-12-28 | Adjustable wrench head of torque wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210585423.5A CN103170934B (en) | 2012-12-28 | 2012-12-28 | Adjustable wrench head of torque wrench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103170934A CN103170934A (en) | 2013-06-26 |
| CN103170934B true CN103170934B (en) | 2015-02-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210585423.5A Expired - Fee Related CN103170934B (en) | 2012-12-28 | 2012-12-28 | Adjustable wrench head of torque wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103170934B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526621B (en) * | 2015-01-04 | 2015-11-25 | 宁波工程学院 | A kind of high performance sleeve barrel tool |
| CN105313053B (en) * | 2015-11-06 | 2017-04-12 | 浙江工业大学 | Speed wrench adjustable in inner diameter dimension |
| CN107866769A (en) * | 2017-12-25 | 2018-04-03 | 洛阳伟信电子科技有限公司 | A kind of nonstandard box spanner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046423U (en) * | 1988-12-09 | 1989-10-25 | 薛止众 | External adjustable wrench |
| US5628235A (en) * | 1995-09-12 | 1997-05-13 | Kambara; Goro | Driving attachment for eye-bolt hangers and the like |
| CN1392028A (en) * | 2001-06-18 | 2003-01-22 | 梁钊 | Fast adjustable spanners |
| CN101171100A (en) * | 2005-03-03 | 2008-04-30 | 无限咨询集团有限责任公司 | Adjustable ratchet wrench |
| CN201102208Y (en) * | 2007-12-10 | 2008-08-20 | 姜元刚 | Fast wrench with adjustable inside diameter |
| CN202274183U (en) * | 2011-06-16 | 2012-06-13 | 倪云飞 | General rapid valve wrench |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7114824B2 (en) * | 2004-05-03 | 2006-10-03 | Picone Products, Inc. | Multi-functional tool with interchangeable adjustable wrench head unit |
-
2012
- 2012-12-28 CN CN201210585423.5A patent/CN103170934B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046423U (en) * | 1988-12-09 | 1989-10-25 | 薛止众 | External adjustable wrench |
| US5628235A (en) * | 1995-09-12 | 1997-05-13 | Kambara; Goro | Driving attachment for eye-bolt hangers and the like |
| CN1392028A (en) * | 2001-06-18 | 2003-01-22 | 梁钊 | Fast adjustable spanners |
| CN101171100A (en) * | 2005-03-03 | 2008-04-30 | 无限咨询集团有限责任公司 | Adjustable ratchet wrench |
| CN201102208Y (en) * | 2007-12-10 | 2008-08-20 | 姜元刚 | Fast wrench with adjustable inside diameter |
| CN202274183U (en) * | 2011-06-16 | 2012-06-13 | 倪云飞 | General rapid valve wrench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103170934A (en) | 2013-06-26 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20191228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |