CN1025300C - Wedge type spanner - Google Patents
Wedge type spanner Download PDFInfo
- Publication number
- CN1025300C CN1025300C CN 92105567 CN92105567A CN1025300C CN 1025300 C CN1025300 C CN 1025300C CN 92105567 CN92105567 CN 92105567 CN 92105567 A CN92105567 A CN 92105567A CN 1025300 C CN1025300 C CN 1025300C
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- voussoir
- tooth
- hole
- spanner
- nut
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- Expired - Fee Related
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- 210000000078 claw Anatomy 0.000 claims abstract description 37
- 238000003825 pressing Methods 0.000 claims abstract description 3
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims 3
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 14
- 230000011218 segmentation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 241001247821 Ziziphus Species 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Clamps And Clips (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention provides an M-C type wedge type wrench. The spanner is characterized in that a wedge block structure with a spring, a positioning pin or a screw, a pressing sheet and a cylindrical wedge block is arranged on two or one claw at the head of an open spanner, the axis of the wedge block forms an angle of 10-35 degrees with the central line of an opening S of the spanner, the protrusion of the wedge block arranged on the upper claw is higher than a working surface (0-0.5) S at the tip of the claw, 1-6 working tooth surfaces which are matched with the meshing position of a nut during working and can form a self-locking condition are arranged on the inclined surface of the wedge block, and a stress point of each tooth surface formed by the working tooth surfaces during working is kept away from the sharp corner (0-0.. The spanner depends on the telescopic toothed wedge block, realizes in-situ squaring, reduces the squaring angle, enlarges the application range of the spanner, can twist various practical functions such as round and bald nuts and the like, and brings great convenience to operators.
Description
The invention belongs to a kind of hand-held tool that is used to be fastenedly connected dismounting or clamping, a kind of Wedge type spanner of more specifically saying so.
At present, there are the following problems for the widely used common opening fork spanner of mechanical industry: during work, every rotation once all will be resigned from office down square, inefficiency; The square degree of falling is limited in 60 degree; The narrow location inconvenient operation; A/F is subjected to two pawl geometrical clamp face tolerance limits; Description is many, suit cost height, inconvenient store and manage; During the twisting nut, stress point is easily twisted bald nut on the nut wedge angle; The easy slippage of old bald nut; Spanner is poor for applicability, brings great inconvenience to the operator.
The positive and negative moment relation that takes place when the objective of the invention is to utilize spanner to work with nut, the geometrical clamp face that former opening fork spanner two claw types are become is converted to the live splint face, thereby but but and provide a kind of opening sour jujube to twist automatic fine tuning, can dwindle down square degree, can adapt to various abnormity, be out of shape nut, the Wedge type spanner of stubborn bald nut.
The present invention is achieved in that (1) is just as be shaped on the deep-slotted chip breaker that uses specification nut outer diameter D greater than maximum between the dewclaw of opening fork spanner, lower claw, remain with two geometrical clamp faces greater than maximum use specification nut opposite side size S between two hook tips, last lower claw is placed a cotter mechanism respectively.The dewclaw cotter mechanism comprises: place stretch out when the work profile of tooth of certain angle being arranged in the dewclaw voussoir hole and being subjected to force couple role forward wedge outside the hole make in the withdrawal hole at the real space clamping nut of deep-slotted chip breaker and target and when being subjected to reverse force couple role nut the side the cylinder voussoir and be installed in retainer spring in the hole, and be installed in the location Xiao formation that when cooperating in the dewclaw screwed hole and with the voussoir keyway voussoir is played spacing and anti-roll effect.The lower claw cotter mechanism comprises: place stretch out when the work profile of tooth of certain angle being arranged in the lower claw voussoir hole and being subjected to force couple role forward wedge outside the hole contract at the real space clamping nut of deep-slotted chip breaker and target and when being subjected to reverse force couple role machine return make in the hole nut the side the cylinder voussoir and be installed in slit back-moving spring in the hole of the voussoir back side half, and be fastened on the lower claw with screw, an end is embedded in half and slits and play the compressing tablet formation of pressing spring and anti-roll effect in the hole.Being installed in the work profile of tooth that voussoir on the lower claw exposes outer end of hole is made up of 1-6 work tooth.Be installed in voussoir work profile of tooth on the lower claw and stretch in the deep-slotted chip breaker amount (maximum vertical height) and equal or sell, be installed in voussoir work profile of tooth projected claw tip working face on the dewclaw and be the S of △=(0-0.5) greater than △ '=0.5(D-S).Axial and the angled θ of the wrench opening center line=10-35 degree of two voussoirs, make the crown line that has the different flank of tooth when two above teeth and crown can draw a straight line when voussoir and become the a=0-8 degree, and two pawls all there is voussoir to voussoir in the same way with the wrench opening center line.(2) the present invention can be made into also that (dewclaw or lower claw) is equipped with cotter mechanism on a pawl of aforementioned spanner, and the corresponding pawl deep-slotted chip breaker that cotter mechanism is not installed is shaped on working face with the reciprocal bearing puts corresponding arc-shaped slot or angle tooth.
During work, when nut clip is held in condition of self-locking or stressed back wedge on reducing the voussoir field of conjugate action that field of conjugate action spacing direction moves the time, the pressure angle that (Fig. 3, Fig. 4, Fig. 9, Figure 10, Figure 12) nut counter-force and voussoir normal force form is less than from the locking angle or become negative pressure angle.So spanner firmly clamps spiral by voussoir and advances.When the increasing spanner applied moment and is the negative pressure angle state, voussoir was to torsion direction wriggling (seeing Figure 12 double dot dash line), and two voussoir field of conjugate action spacings are dwindled.Because working substance (nut) has limited the variation of field of conjugate action spacing between when work two fields of conjugate action, so force spanner generation strain to be compensated.In the compensation geometrical variations process, pull body two pawls and produce the huge drag of strain, on the nut diagonal angle and the field of conjugate action, form cohesive force by voussoir to nut, reliable clamping when chucking power has formed target (nut) and bears big moment with cohesive force, (Fig. 2, Fig. 5, Figure 11) target (nut) is then nibbled by unidirectional frictional force, voussoir crown that engagement force is bigger when nut clip is held in the crown position of voussoir.Again owing to the nut opposite force changes to reducing the pressure angle direction, so spanner by crown frictional force, engagement force and act on the frictional force that normal pressure produces on the stressed tooth of voussoir and clamp target (nut) precession, and it is big more to apply moment, and pressure angle is more little, and chucking power is big more.
When the spanner backhaul is square, see figure (Fig. 3, Fig. 4, Fig. 9, Figure 10, Figure 12) when time on the nut clamping voussoir field of conjugate action.Because various profile of tooth field of conjugate action length L o are all smaller or equal to D/4, and target (nut) can be opposite when work with the spanner precession to the counter-force prescription with ingredients even in number that the spanner voussoir produces, so nut acts on first the acting on behind the preceding pair flank of tooth (n) adjacent with the field of conjugate action on an adjacent back pair of tooth (e) of the field of conjugate action or the inferior tooth (Fig. 3 chain-dotted line) of axial thrust load on the voussoir.(the return resistance is by the spring recuperability and act on the frictional force that the radial component on the voussoir produces and form when axial thrust load surpasses voussoir return resistance, the return resistance turns nut power less than ordinary person's hand) time, voussoir withdraws from outside deep-slotted chip breaker, has then realized side of original position when withdrawing to target (nut) behind the maximum revolution outer diameter D rotary space (Fig. 8) spanner.When crown position (Fig. 2, Fig. 5, Figure 11) that target (nut) is clamped in voussoir during the side, because voussoir work profile of tooth integral body is slightly larger than the voussoir of angle of friction; Again because the voussoir tooth is that (Fig. 1, Fig. 2, the anterior tooth of middle voussoir be point for the less profile of tooth of reverse frictional force, engagement force, indention, back afterbody crown is purer, be circular arc or flat shape and the whole zigzag of Fig. 5), and nut counter-force direction changes to the intensified pressure angular direction, so voussoir can not get frictional force, the axial thrust load of keeping of engagement force and pressure angle changing value withdraws from voussoir above antidrag outside deep-slotted chip breaker, (Fig. 8) spanner has then been realized side of original position behind the maximum revolution of the object of deactivating (nut) outer diameter D rotary space.The quick sour jujube of spanner of back and forth alternately then realizing of said process twists original position side's function.
Spanner is being tightened or is being unclamped in the process of nut, because the angle position (Fig. 9, Figure 10, Figure 11) that voussoir has several to become corresponding angle work tooth thereby several clamping targets (nut) are arranged.As nut path of contact and the far ultraviolet bus distance L of voussoir and L ' during greater than first tooth depth, voussoir just can enter the first tooth position of engagement by the spring recuperability.When spanner was turned back to distance L 1 and L1 ' greater than second tooth depth, voussoir just can enter the second tooth position of engagement.When spanner is turned back to distance L 2 and L2 ' greater than the 3rd tooth depth, voussoir just can enter the 3rd tooth position of engagement, meanwhile, operating angle β increases successively, promptly voussoir has two engagement segmentations in 60 degree scopes, two segmentations of falling the square degree are then arranged, and voussoir has three engagement segmentations, and three segmentations of falling the square degree are then arranged.Again because the alternately engagement of the last lower wedge block tooth field of conjugate action, target (nut) be so also can there be further angle segmentation, but so be that spanner has a plurality of angle position clamping nuts in practical application, thereby dwindle down square degree, freely easy to use.
This kind spanner is the S of △=(0-0.5) because dewclaw voussoir work profile of tooth is stretched out the outer amount of deep-slotted chip breaker, the lower claw voussoir stretches out deep-slotted chip breaker and measures △ '=0.5(D-S) outward, thereby target (nut) specification extremely all is suitable for greater than the nut in the opening size S margin of tolerance at ratio open size S little (0-0.5) S.As: for the spanner of open S=24mm.Lower claw voussoir work profile of tooth overhang is 0.5(27.7-24)=1.85mm.Dewclaw voussoir work tooth overhang be (0-0.5) * 24=(0-12) with maximum height value 3.7mm in the deep-slotted chip breaker, then between two voussoir profiles of tooth minimum range be 27,7-1.85-3.7=22.15mm.S opening machining tolerance is that 0.4mm is opening size 24.4mm again.Then this kind spanner all is suitable for for the various standards in the 22.15-22.4mm scope, non-standard nut.
Because voussoir has several work teeth, produce bigger frictional force and engagement force during single effect again, so can clamp old bald nut and pipe spare plays the pipe wrench effect.For nut, also because the voussoir tooth field of conjugate action is also made crown portion contact nut working face earlier, promptly avoiding nut wedge angle one segment distance earlier becomes line to contact stressed working face to be deformed into face contact, and changed former fork spanner elder generation angular contact, the force way of wedge angle distortion back one-tenth face contact, so nut is not yielding, be difficult for twisting bald nut.
This spanner structure is simple, and is easily manufactured, increased the multinomial major function of spanner, can make single head Wedge-type, double end Wedge-type and Wedge-type and fork spanner, coupling box various ways spanner combined type as required, can be widely used in all trades and professions.
Fig. 1 is embodiments of the invention 1;
Fig. 2 is embodiments of the invention 2;
Fig. 3 is embodiments of the invention 3;
Fig. 4 is embodiments of the invention 4;
Fig. 5 is embodiments of the invention 5;
Fig. 6 is embodiments of the invention 6;
Fig. 7 is embodiments of the invention 7;
Fig. 8 possesses the position view that the revolution of nut outer diameter D requires for voussoir all withdraws from outside deep-slotted chip breaker;
Fig. 9 is that nut is at spanner voussoir first field of conjugate action clip position schematic diagram;
Figure 10 is that nut is at spanner voussoir second field of conjugate action clip position schematic diagram;
Figure 11 is that nut is at the 3rd engaging tooth position view of spanner voussoir;
Figure 12 applies moment to strengthening spanner, wrench body distortion and voussoir displacement diagram for nut clip is held in spanner first tooth;
As shown in Figure 1, a cotter mechanism is set respectively on two pawls of the present invention, wherein dewclaw has back-moving spring 7, location Xiao 6 and cylinder voussoir 5.Wherein, back-moving spring 7 and cylinder voussoir 5 place in the dewclaw voussoir hole 8, and the voussoir rear portion has a spring eye 9 to be used to lay the other end of spring 7.The other end of spring 7 is in bottom, voussoir hole, one keyway 10 of voussoir 5 long end faces, working face is processed with 4 work teeth 13, and location Xiao 6 is installed on screwed hole with helicitic texture and cooperates in keyway 10 and is used for voussoir 5 is installed in the voussoir hole and to the spacing and anti-roll effect of voussoir.Lower claw has back-moving spring 3, screw 1, compressing tablet 2 and cylinder voussoir 4, wherein voussoir 4 is positioned at lower claw voussoir hole 12, voussoir 4 working faces are shaped on 3 work teeth 14, the back side has half open-minded hole 15, back-moving spring 3 is housed in the hole, and spring 3 one ends withstand at the bottom of the hole, and the other end withstands on the compressing tablet 2, compressing tablet 2 is screwed on following corpus unguis 11, and screw is screwed in one and becomes in 30 screwed holes 16 of spending with the voussoir hole.
As Fig. 2, the dewclaw voussoir is made three work teeth 17, and profile of tooth is with Fig. 1 lower claw voussoir 4, the same Fig. 1 of other structure of last lower claw.(figure part omitted)
As Fig. 3, dewclaw voussoir 5 is made two work teeth 18, and lower claw voussoir 4 is made two work teeth 19, and blade tooth shape is identical up and down, the same Fig. 1 of other structure.(figure part omitted)
As Fig. 4, dewclaw, lower claw voussoir 5,4 respectively are shaped on a work tooth 20,21, and last lower claw voussoir is identical, the same Fig. 1 of other structure.(figure part omitted)
As Fig. 5, last lower claw voussoir 5,4 respectively is shaped on 3-6 saw shape work tooth 22,23, and blade tooth is identical up and down, the same Fig. 1 of other structure.
As Fig. 6, the same Fig. 1 of lower claw structure, dewclaw curved working face are shaped on four and put the arc-shaped slot of corresponding R=0.8mm with the reciprocal bearing.
As Fig. 7, the same Fig. 1 of dewclaw structure, the lower claw curved working face is shaped on the arc-shaped slot of putting corresponding R=0.8mm with the reciprocal bearing.
Above embodiment does not just form restriction to of the present invention further specifying to the present invention, and any structural change that produces according to the present invention all belongs to category of the present invention.For example: the arc-shaped slot of enforcement 6 and 7 also can have the work profile of tooth of certain angle, and last voussoir location Xiao also can install in the punching of spanner plane and substitute.
Claims (3)
1, a kind of Wedge type spanner, tangible dewclaw and the lower claw that is same as the opening fork spanner, it is characterized in that: the deep-slotted chip breaker that uses specification nut outer diameter D greater than maximum is arranged between two pawls, two geometrical clamp faces that use specification nut corresponding sides size S greater than maximum are arranged between two hook tips, last lower claw respectively has a cotter mechanism, the dewclaw cotter mechanism comprises: place stretch out when the work profile of tooth of certain angle being arranged in the dewclaw voussoir hole and being subjected to force couple role forward wedge outside the hole make in the withdrawal hole at the real space clamping nut of deep-slotted chip breaker and target and when being subjected to reverse couple nut the side the cylinder voussoir and be installed in back-moving spring in the hole, and be installed in the location Xiao formation that when cooperating in the dewclaw screwed hole and with wedge groove voussoir is played spacing and anti-roll effect.Lower claw voussoir machine comprises: place stretch out when the work profile of tooth of certain angle being arranged in the lower claw voussoir hole and being subjected to couple forward wedge outside the hole make in the withdrawal hole at the real space clamping nut of deep-slotted chip breaker and target and when being subjected to reverse force couple role nut the side the cylinder voussoir and be installed in slit back-moving spring in the hole of the lower claw voussoir back side half, and be fastened on lower claw one end with screw and inlay and be engaged in half and slit and work the compressing tablet of pressing in the hole and constitute toward reset spring and anti-roll effect.Voussoir work profile of tooth is fallen the work tooth that square degree is complementary by 1-6 and target and is formed, and the overhang that the voussoir that is installed in the spanner dewclaw exceeds hook tip work is the S of △ '=(0-0.5), the axial and wrench opening center line angulation 10-35 degree of voussoir.When voussoir is made crown line and the angled a=0-8 degree of wrench opening center line that has the different flank of tooth when two above teeth and crown can draw a straight line, and two voussoirs are equidirectional.
2, a kind of Wedge type spanner, tangible dewclaw and the lower claw that is same as fork spanner is characterized in that: be shaped on the deep-slotted chip breaker that uses specification nut outer diameter D greater than maximum between two pawls, there are two geometrical clamp faces that use specification nut opposite side size S greater than maximum in portion between two pawls.Dewclaw has a cotter mechanism.Cotter mechanism comprises: place work profile of tooth that certain angle is arranged in the dewclaw voussoir hole and when being subjected to force couple role forward, stretch out wedge outside the hole make in the withdrawal hole at the real space clamping nut of deep-slotted chip breaker and target and when being subjected to reverse force couple role nut the side the cylinder voussoir and be installed in back-moving spring in the hole, and be installed in to match in the dewclaw screwed hole and with wedge groove and voussoir played location Xiao formation of spacing and anti-roll effect.Voussoir work profile of tooth is fallen the work tooth that square degree is complementary by 1-6 and target and is formed.The overhang that the voussoir that is installed in the spanner dewclaw exceeds the hook tip working face is the S of △=(0-0.5), and voussoir axially and wrench opening center line angulation 10-35 degree.Make crown line and the wrench opening center line angle a=0-8 degree that has the different flank of tooth when two above teeth and crown can be linked to be five straight lines when voussoir, be shaped on the curved working face of lower claw with the reciprocal bearing and put corresponding arc-shaped slot or work tooth.
3, a kind of Wedge type spanner, tangible opening fork spanner dewclaw and the lower claw of being same as, it is characterized in that: be shaped between two pawls greater than the deep-slotted chip breaker that uses specification nut outer diameter D, two hook tips have two greater than the geometrical clamp face that uses specification nut opposite side size S, and lower claw has a cotter mechanism.Cotter mechanism comprises: place stretch out when certain angle work profile of tooth being arranged in the lower claw voussoir hole and being subjected to couple forward wedge outside the hole make in the work profile of tooth withdrawal hole at the real space clamping nut of deep-slotted chip breaker and target and when being subjected to reverse couple nut the side the cylinder voussoir and be installed in slit back-moving spring in the hole of the lower wedge block back side half, and be fastened on lower claw one end with screw and be engaged in half and slit and work the compressing tablet of pushing down back-moving spring and anti-roll effect in the hole and constitute.Voussoir work profile of tooth is fallen the work tooth that square degree is complementary by 1-6 and target and is formed.Axial and the wrench opening center line angulation 10-35 degree of voussoir.Make crown line and the angled a=0-8 degree of wrench opening center line that has the different flank of tooth when two above teeth and crown can draw a straight line when voussoir, be shaped on the dewclaw deep-slotted chip breaker working face with the reciprocal bearing and put corresponding arc-shaped slot or work tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105567 CN1025300C (en) | 1992-07-17 | 1992-07-17 | Wedge type spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105567 CN1025300C (en) | 1992-07-17 | 1992-07-17 | Wedge type spanner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1069219A CN1069219A (en) | 1993-02-24 |
| CN1025300C true CN1025300C (en) | 1994-07-06 |
Family
ID=4941467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92105567 Expired - Fee Related CN1025300C (en) | 1992-07-17 | 1992-07-17 | Wedge type spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1025300C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004041480A1 (en) * | 2002-11-05 | 2004-05-21 | Hong Lu | A single wedge-type wrench |
| US7299722B2 (en) | 2003-01-23 | 2007-11-27 | Hong Lu | Adjustable wrench for adjusting the width of the jaw quickly |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009043237A1 (en) * | 2007-10-01 | 2009-04-09 | Fengyi Liu | A clamping mechanism and a self-clamping adjustable wrench |
| CN100558511C (en) * | 2007-11-22 | 2009-11-11 | 史丹利七和国际股份有限公司 | Open spanner |
| CN112518645B (en) * | 2020-12-01 | 2022-04-19 | 九江检安石化工程有限公司 | Adjustable axial flow fan stationary blade locking piece mounting device |
-
1992
- 1992-07-17 CN CN 92105567 patent/CN1025300C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004041480A1 (en) * | 2002-11-05 | 2004-05-21 | Hong Lu | A single wedge-type wrench |
| US7270035B2 (en) | 2002-11-05 | 2007-09-18 | Hong Lu | Single-wedge wrenches |
| US7299722B2 (en) | 2003-01-23 | 2007-11-27 | Hong Lu | Adjustable wrench for adjusting the width of the jaw quickly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1069219A (en) | 1993-02-24 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
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Granted publication date: 19940706 Termination date: 20100717 |