CN108058121A - Big torque-force ratchet spanner - Google Patents
Big torque-force ratchet spanner Download PDFInfo
- Publication number
- CN108058121A CN108058121A CN201810133661.XA CN201810133661A CN108058121A CN 108058121 A CN108058121 A CN 108058121A CN 201810133661 A CN201810133661 A CN 201810133661A CN 108058121 A CN108058121 A CN 108058121A
- Authority
- CN
- China
- Prior art keywords
- bayonet lock
- protrusion
- power transmission
- clamping head
- actively
- 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
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a kind of big torque-force ratchet spanners, the spanner includes being equipped with the actively body of circle and handle, driving member actively is installed in circle, the axial limiting mechanism for limiting its axially opposing displacement is equipped between the active circle and driving member, the lateral wall of driving member, actively the inner hole wall of circle forms two nested cylindric power transmission faces, wherein the first power transmission face is equipped with bayonet lock slot, bayonet lock is rotatably mounted in bayonet lock slot, the side of bayonet lock is equipped with protrusion, the bayonet lock is connected with dynamic clamping head and quiet clamping head, bayonet lock rotates under the elastic force effect of dynamic clamping head and quiet clamping head, protrusion is driven to protrude from bayonet lock slot and be in contact with the second power transmission face, the outermost endpoint of protrusion is more than the minimum range in the second power transmission face and bayonet lock central axes with the distance of bayonet lock central axes.Above-mentioned ratchet spanner devises new shaft clasping structure, is transferred for torsion, considerably increases the ability for transferring torsion, while so that the structure of entire ratchet spanner is simpler, compact, more convenient to use.
Description
Technical field
The present invention relates to a kind of instrument for fastening, dismantling, more particularly to a kind of ratchet spanner.
Background technology
Ratchet spanner is a kind of manual bolts tightening tool, and this spanner need to swing certain angle, can tighten and unclamp spiral shell
Nail or nut.Equipped with right two struts of a first from left inside its Wrench head.Strut is equipped with one or more support tooth, when tightening
When screw or nut, support tooth is tightly against hook tooth.When handle is turned back to negative direction, strut is sliding in the inclined-plane of hook tooth
Go out, thus screw or nut will not follow reversion.If necessary to unclamp screw or nut, reversing piece only need to be stirred, is changed to another
A strut.
But when the power of rotating ratchet spanner is larger, relies solely on limited support tooth and prop up one or several hook tooths,
So that hook tooth stress is excessive, tooth or ratchet damage are easily skidded or even supportted.
In face of this problem, the prior art is pulled often by the material of steel, increase used in spanner ratchet and support tooth is improved
Thickness, the ratchet of hand shell become larger, increase support number of teeth amount to solve.But the cost which results in spanner greatly improves；And it pulls
Hand is also increasingly heavier.
The content of the invention
The purpose of the present invention is to propose to a kind of big torque-force ratchet spanners.
The spanner of the present invention includes being equipped with the actively body of circle and handle, actively driving member is equipped in circle, in the master
The axial limiting mechanism for limiting its axially opposing displacement is equipped between moving-coil and driving member, key is the outside of the driving member
The inner hole wall of wall, actively circle forms two nested cylindric power transmission faces, wherein the first power transmission face is equipped with bayonet lock slot, bayonet lock slot
Bayonet lock is inside rotatably mounted with, the side of bayonet lock is equipped with protrusion, and the bayonet lock is connected with dynamic clamping head and quiet clamping head, and bayonet lock is multiple in elasticity
The elastic force effect of position part is lower to be rotated, and protrusion is driven to protrude from bayonet lock slot and be in contact with the second power transmission face, the protrusion it is outermost
The distance of side point and bayonet lock central axes is more than the minimum range in the second power transmission face and bayonet lock central axes.
The operation principle of above-mentioned spanner is as follows：
Driving member is movably installed in actively circle, and is prevented by axial limiting mechanism in the autonomous moving-coil of driving member axially
It moves and deviates from and actively enclose.Driving member is used to coordinate with the connector waited to tighten or unscrewed, so as to which the rotation torsion of handle be passed
It is delivered on connector.Dynamic clamping head and quiet clamping head keeps applying the bayonet lock installed the bullet of predetermined direction in the first power transmission face bayonet lock slot
Power, the elastic force cause bayonet lock to be rotated to predetermined direction, and when bayonet lock rotates, protrusion is rotated synchronously with bayonet lock, and such protrusion is gradual
It is exposed to bayonet lock slot and is contacted with the second power transmission face, since the outermost endpoint of protrusion and the distance of bayonet lock central axes are more than second
The minimum range in power transmission face and bayonet lock central axes, therefore protrusion is stopped and can not be rotated further by the second power transmission face.In addition, by
It is unlikely to be what is be completely smooth in the surface of parts, therefore due to contacting with each other and there are one between the second power transmission face and protrusion
Fixed frictional force.
During the work time, when the direction phase that the rotation direction of handle is rotated with bayonet lock under the action of elastic reset part
Meanwhile the second frictional force between power transmission face and protrusion can promote protrusion to along the direction rotated originally so that bayonet lock it is convex
Pressure between portion and the second power transmission face is increasing, and frictional force between the two is also just increasing, so as to which bayonet lock is more next
The side-walls of bayonet lock slot are more pressed on, bayonet lock forms a metastable structure under the effect of the pressure with driving member, in this way,
Above-mentioned frictional force will drive driving member to rotate by bayonet lock, realize handle (pass through actively enclose) and driving member (and and driving member
Connector joined together, such as nut) between torsion transfer.
When handle rotates backward, the frictional force between the second power transmission face and protrusion can drive bayonet lock to overcome dynamic clamping head and quiet clamping head
Elastic force, and as the second power transmission face synchronous backward rotates, with rotating backward for bayonet lock, protrusion can be gradually to bayonet lock slot direction
It is mobile, so as to which the pressure between the second power transmission face also can be less and less, in this way, the frictional force between protrusion and the second power transmission face
Also less and less, final protrusion is slided on the second power transmission face, and such driving member and the connector coordinated with driving member would not
As handle rotates backward.Handle is swung repeatedly in the range of certain angle, you can passes through the second above-mentioned power transmission face and protrusion
Cooperation driving member is driven to one-directionally rotate, complete the dismounting of connector.
Compared to the conventional spanner of ratchet engagement mode, above-mentioned spanner transmission torsion principle it is entirely different, be according to
Rely the compression in protrusion and the second power transmission face, so its torsion upper limit that can bear be no longer dependent on ratchet contact area,
Structural strength, and bayonet lock and the integral strength in two power transmission faces are to rely on, therefore it is easy to improve the upper limit of its transmission torque.
When above-mentioned spanner works, the protrusion of all bayonet locks is contacted with the second power transmission face, and torsion may be uniformly distributed in all convex
In portion, producer can increase the quantity of bayonet lock as needed, it might even be possible to and bayonet lock is made to be distributed on entire first power transmission face, with
Obtain the torsion delivery threshold of bigger.
Moreover, because bayonet lock is disposed on the first power transmission face, length can be equal to or slightly less than power transmission face
Width, entire side and the second power transmission face of protrusion can contact with each other, it is ensured that between the two with enough frictions
Power, and the pressure between protrusion and the second power transmission face does not converge, and the side of entire protrusion is dispersed in, so as to
Reduce the requirement to the intensity of protrusion.
Above-mentioned dynamic clamping head and quiet clamping head can be there are many structure, such as says and a little spring, bullet are installed in each bayonet lock slot
Madial wall of the both ends of spring respectively with bayonet lock and bayonet lock slot is connected, and rotates bayonet lock using the elastic force of spring, realizes protrusion and the
The contact in two power transmission faces.But above-mentioned dynamic clamping head and quiet clamping head installation is complex, occupies more space so that spanner
Structure can not be made compact, compact.For this problem, the present invention proposes following proposal with regard to dynamic clamping head and quiet clamping head：The bayonet lock
It is equipped with spring and presses position, the dynamic clamping head and quiet clamping head is elastic ring, and the elastic ring is placed on or is resisted against the spring of all bayonet locks
It presses at position；The elastic ring is eccentric in the central axes of bayonet lock by the active force that spring presses position to be applied to bayonet lock, so that bayonet lock exists
The elastic force effect of dynamic clamping head and quiet clamping head is lower to be rotated.
Above-mentioned elastic ring may be employed helical spring head and the tail and be formed by connecting, can also be directly using elasticity such as wound spring
Rubber ring, as long as elastic ring has the elastic force for shrinking or expanding.After the completion of by driving member and bayonet lock assembling, by elasticity
Snare presses at position elastic ring to bayonet lock to apply to tend to or back on elastic circle center in the spring for being either stuck in all bayonet locks
Elastic acting force, spring pressure position decompose the elastic acting force, generate the active force that bayonet lock is promoted to be rotated to predetermined direction, into
And the protrusion of bayonet lock is made to be contacted after bayonet lock rotation with the second power transmission face, it is ensured that driving member can be in the second power transmission face, protrusion
Under cooperation, rotated with synchronous forward is actively enclosed；And when the handle reversion of spanner, the reverse friction power push card in the second power transmission face
Pin rotates backward so that protrusion is rotated to bayonet lock slot direction, the contact area with the second power transmission face is gradually decreased, finally from second
Power transmission face slips over, and avoids driving member and is rotated backward with the connector of driving member cooperation with active circle.Using single in said program
A elastic ring realizes the elastic reset of all bayonet locks, can greatly simplify structure, the assembling of convenient wrench parts, reduction accounts for
With space so that entire spanner structure can be made compact, compact, be conveniently operated.
Further, to prevent axial float occurs for elastic ring from even departing from the bullet of bayonet lock, the power transmission face or bayonet lock
It is equipped with to limit the fixing groove of elastic ring axial movement at spring pressure position, elastic ring is snapped onto in fixing groove, you can avoids axial direction
It is mobile.
Further, the bayonet lock back in the one side of protrusion be cambered surface, the bayonet lock slot be equipped with and the cambered surface phase
The arcuate structure of adaptation.Coordinated by cambered surface and arcuate structure, it is possible to reduce bayonet lock resistance suffered in rotation process.
Further, the second power transmission face is evenly equipped with ratchet, the extending direction of ratchet parallel to active circle central axes,
The protrusion is the latch with ratchet cooperation.The cooperation principle of above-mentioned ratchet and latch is as follows：Dynamic clamping head and quiet clamping head holding pair
Bayonet lock applies the elastic force of predetermined direction, which promotes bayonet lock to rotate so that latch and ratchet engagement, such driving member can only be
One-directional rotation in actively enclosing；When handle rotates backward, the guiding surface of ratchet applies active force to latch so that latch overcomes
The elastic force of dynamic clamping head and quiet clamping head and release and engaged with ratchet, latch slips on the back of tooth of ratchet, such driving member and with transmission
The connector of part cooperation will not be rotated backward with handle.By using ratchet and the fit system of latch, can reduce to convex
The requirement on machining accuracy of fit clearance between portion, the second power transmission face, part bayonet lock caused by avoiding when machining accuracy is short of
Protrusion can not the second power transmission face of jam-packed, cause driving member and actively enclose between unbalance stress the problem of.
Further, the first power transmission face is the rough surface after polishing or annular knurl face or stripe surface, therefore second passes
Due to contacting with each other and there are certain frictional force between power face and protrusion.
Further, the axial limiting mechanism is clamp spring, and described two power transmission faces are equipped with the corresponding jump-ring slot in position, institute
Clamp spring is stated to be installed in jump-ring slot.Axial movement of the driving member in active circle is limited using clamp spring, there is compact structure, peace
Fill the advantages of facilitating.
Further, the driving member center is quincuncial through hole or the positive Polyhedral column for protruding from wrenching surface
Body.The positive and negative of the driving member of quincunx through hole can coordinate with connector, so when needing reversely to turn connector, only
It needs to overturn the reversed torsion transmission that driving member can be realized in spanner.The positive Polyhedral column of wrenching surface is protruded from driving member
Body can be stretched into and is fitted in sleeve, be coordinated by sleeve and connector.
Further, the active circle for two and is respectively arranged at the both ends of the handle, with two active circles
Matched driving member and bayonet lock positioned there between, dynamic clamping head and quiet clamping head and axial limiting mechanism installation direction on the contrary,
When needing reversely to turn connector, it is only necessary to turn spanner, be coordinated using another driving member and connector, you can realize reversed
Torsion transfer.
The spanner of the present invention considerably increases the ability for transferring torsion by structure novel, unique torsion transferring structure,
Also there is good practicability and commercial competitiveness so that the structure of entire spanner is more simple, compact simultaneously.
Description of the drawings
Fig. 1 is the decomposition texture schematic diagram of the spanner of embodiment 1.
Fig. 2 is the dimensional structure diagram of bayonet lock in embodiment 1.
Fig. 3 is the bottom view of bayonet lock in embodiment 1.
Fig. 4 is the structure diagram of driving member in embodiment 1.
Fig. 5 is driving member in embodiment 1, actively bayonet lock, the cooperation schematic diagram (sectional view) of circle and elastic ring.
Fig. 6 is driving member in embodiment 1, bayonet lock, the cooperation schematic diagram actively enclosed.
Fig. 7,8 are bayonet lock and the cooperation principle schematic actively enclosed in embodiment 1.
Fig. 9 is the dimensional structure diagram of bayonet lock in embodiment 2.
Figure 10 is the bottom view of bayonet lock in embodiment 2.
Figure 11 is driving member in embodiment 2, bayonet lock, the cooperation schematic diagram actively enclosed.
Figure 12,13 are bayonet lock and the cooperation principle schematic actively enclosed in embodiment 2.
Figure 14 is the decomposition texture schematic diagram of the spanner of embodiment 3.
Figure 15 is driving member in embodiment 3, bayonet lock, the cooperation schematic diagram actively enclosed.
Figure 16 is driving member in embodiment 3, actively bayonet lock, the cooperation schematic diagram (sectional view) of circle and elastic ring.
Figure 17,18 for two kinds of spanners structure diagram.
Attached drawing indicates：1st, actively enclose；11st, inner hole wall；12nd, ratchet；2nd, handle；3rd, driving member；31st, through hole；32nd, bayonet lock
Slot；33rd, fixing groove；34th, cylinder；4th, bayonet lock；41st, protrusion；42nd, cambered surface；43rd, spring pressure position；44th, load-carrying surface；5th, elastic ring；6、
Clamp spring；7th, jump-ring slot.
Specific embodiment
Below against attached drawing, by the description to embodiment, for example involved to the specific embodiment of the present invention is each
Mutual alignment and connection relation, the effect of each several part and operation principle between the shape of component, construction, each several part etc. are made into one
The detailed description of step.
Embodiment 1：
As shown in Figure 1, the spanner of the present embodiment includes being equipped with the body for actively enclosing 1 and handle 2, actively enclose 1 and lead to be circular
Pore structure is actively enclosed there are one 1 and positioned at one end end of handle 2, and driving member 3, which is movably installed in, actively to be enclosed in 1, and is passed through
Axial limiting mechanism prevents axial movement in 3 autonomous moving-coil 1 of driving member and deviating from from actively enclose 1, and the axial direction in the present embodiment limits
Position mechanism is realized using the structure of the clamp spring 6 in jump-ring slot 7 hereafter as illustrated in figures 4-5；As shown in figure 4,
The center of driving member 3 is the through hole 31 of plum blossom tee section, for coordinating with the connectors such as bolt, so as to by the rotation of handle 2
Torsion is transferred on connector.
As shown in Fig. 1,4,5,6, the lateral wall of driving member 3 actively encloses 1 inner hole wall 11 and forms two nested cylinders
The power transmission face of shape；In the present embodiment, the lateral wall of driving member 3 is evenly equipped with multiple parallel to actively as the first power transmission face
The axial bayonet lock slot 32 of circle 1, in the present embodiment, altogether equipped with 12 bayonet lock slots 32, certainly, which can voluntarily increase as needed
Subtract.The inner hole wall 11 for actively enclosing 1 is used as the second power transmission face；Bayonet lock 4 is rotatably mounted in bayonet lock slot 32, as shown in Figure 2,3,
The side of bayonet lock 4 is equipped with the protrusion 41 of protrusion at the crest line of one side, the extending direction of protrusion 41 parallel to the axial direction for actively enclosing 1,
Protrusion 41 toward the side for the inner hole wall 11 for actively enclosing 1 be cambered surface；Bayonet lock 4 is connected with dynamic clamping head and quiet clamping head, and the present embodiment is hit by a bullet
Property return unit be elastic ring 5, bayonet lock 4 dynamic clamping head and quiet clamping head elastic force effect under rotate, drive protrusion 41 protrude from bayonet lock slot 32
And the inner hole wall 11 with actively enclosing 1 is in contact；The outermost endpoint of protrusion 41 is more than with the distance of 4 central axes of bayonet lock actively encloses 1
Inner hole wall 11 and 4 central axes of bayonet lock distance.
For improve protrusion 41 and actively enclose 1 inner hole wall 11 between frictional force, protrusion 41 and/or actively enclose 1 endoporus
The surface of wall 11 can be the rough surface after polishing, or annular knurl or striped etc., since basic torsion transfers original
Reason is all consistent, therefore is no longer analyzed one by one.
Bayonet lock 4 back to being cambered surface 42 in the one side of protrusion 41, bayonet lock slot 32 is equipped with the arc knot that is adapted with cambered surface 42
Structure is coordinated by cambered surface 42 and arcuate structure, it is possible to reduce the resistance suffered in rotation process of bayonet lock 4, and can be to card
The rotation of pin 4 forms good /V.
As shown in Fig. 2,3,7,8, the end of bayonet lock 4 is equipped with step-like spring pressure position 43, and spring pressure position 43, which is equipped with, holds
Power face 44, in the present embodiment, load-carrying surface 44 are parallel to the axial plane of bayonet lock 4；Dynamic clamping head and quiet clamping head is elastic ring 5, elastic
Circle 5 is located at outside the circle that all bayonet locks 4 are surrounded, and elastic ring 5 is placed on the load-carrying surface 44 of the spring pressure position 43 of all bayonet locks 4 simultaneously
Place.
As shown in fig. 7, elastic ring 5 is shunk under the action of its own resilient, elastic ring 5 applies to the load-carrying surface 44 of bayonet lock 4
It is intended to the elastic acting force of 5 center of elastic ring (central axes for actively enclosing 1), under the decomposition of load-carrying surface 44, above-mentioned elasticity
Some is converted into the active force that bayonet lock 4 is promoted to rotate clockwise (as shown in dotted arrow in Fig. 7) to active force, makes bayonet lock 4
Protrusion 41 be gradually exposed to bayonet lock slot 32 and the inner hole wall 11 with actively enclosing 1 is in contact, be equivalent to by driving member 3,4 institute of bayonet lock
The diameter of the structural member of composition is increasing and expansion situation is presented, the lateral surface of the final structural member and actively enclose 1 endoporus
Wall pushes against, similar to seizing for transmission shaft.
When handle 2 rotates clockwise (direction as shown in solid arrow in Fig. 7), 1 inner hole wall 11 and protrusion are actively enclosed
Frictional force between 41 can be by protrusion 41 to along the direction rotated originally (i.e. clockwise, as shown in dotted arrow in Fig. 7)
It promotes so that the pressure between the protrusion 41 of bayonet lock 4 and the inner hole wall 11 for actively enclosing 1 is increasing, frictional force between the two
Also it is just increasing, so as to which bayonet lock 4 to be increasingly pressed on to the work of the side-walls of bayonet lock slot 32, bayonet lock 4 and driving member in pressure
A metastable structure is formed with lower, in this way, above-mentioned frictional force and pressure will drive driving member 3 rotate by bayonet lock 4,
Realize that the torsion between handle 2 (by actively enclosing 1) and driving member 3 (and connector joined together by with driving member 3) transfers.
As shown in figure 8, when handle 2 is rotated backward and (rotated counterclockwise) (direction as shown in solid arrow in Fig. 7), it is main
Frictional force between the inner hole wall 11 of moving-coil 1 and protrusion 41 can drive bayonet lock 4 to overcome the elastic force of elastic ring 5, and with actively enclosing 1
11 synchronous backward of inner hole wall rotate (as represented by dashed arrows in fig. 8), elastic ring 5 is expanded under the active force of bayonet lock 4 at this time
And put aside elastic potential energy.With rotating backward for bayonet lock 4, protrusion 41 can gradually be moved to 32 direction of bayonet lock slot, so as to actively
Pressure between the inner hole wall 11 of circle 1 also can be less and less, in this way, the friction between protrusion 41 and the inner hole wall 11 for actively enclosing 1
Power is also less and less, and final protrusion 41 is slided on the inner hole wall 11 for actively enclosing 1, such driving member 3 and with driving member 3 coordinate
Connector would not be rotated backward with handle 2, be equivalent to the diameter for the structural member being made of driving member 3, bayonet lock 4 increasingly
Small and present and shrink situation, the lateral surface of the final structural member is no longer pushed against with actively enclosing 1 inner hole wall, and releasing seizes.Handle 2
It is swung repeatedly in the range of certain angle, you can driven by the inner hole wall 11 of above-mentioned active circle 1 and the cooperation of protrusion 41
Driving member 3 one-directionally rotates, and completes the dismounting of connector.
It is of course also possible to which protrusion 41 is arranged at another crest line of bayonet lock 4, and change the direction of load-carrying surface 44, from
And change driving member 3 and actively enclosing the rotation direction in 1, protrusion 41 and actively enclose 1 inner hole wall 11, elastic ring 5 cooperation and
Above-mentioned principle is identical, and details are not described herein again.
For traditional ratchet spanner, the limiting value for transferring torsion is the intensity by the position of engagement of ratchet
, in order to improve the intensity of the position of engagement it is necessary to improving the material of ratchet (need improve cost) or increase the crown of ratchet
The depth of engagement, but can so increase bar stroke when spanner inverts again, reduce efficiency.In the present embodiment, do not having installation card
Before pin 4, the outer diameter of driving member 3 is a, and the internal diameter for actively enclosing 1 is that (a, b can be according to specific processing requests come value by a+b.B is
After bayonet lock is installed, the distance between bayonet lock protrusion outermost endpoint and the first power transmission face), at this point, driving member 3 can actively enclose 1
Interior flexible rotating；After loading onto bayonet lock 4 and elastic ring 5, under the elastic force effect of elastic ring 5,41 one side of protrusion of bayonet lock 4 is stuck up slightly
Ji Ke Arrived are played to live actively to enclose 1 inner hole wall 11, that is to say, that in the handoff procedure of spanner forward and reverse, the protrusion of bayonet lock 4
41 displacement distance is no more than b, therefore bar stroke of the bayonet lock 4 when spanner 2 inverts is very small, can stop instead in spanner 2
After turning, the rapid reconnect realized driving member 3 and actively enclose 1 and torsion transfer, and which improves the efficiency of spanner.
It realizes the elastic reset of all bayonet locks 4 in said program simultaneously using single elastic ring 5, knot can be greatly simplified
Structure, the assembling of convenient wrench parts reduce occupied space so that entire spanner structure can be made compact, compact, facilitate behaviour
Make.Certainly, in order to improve elastic ring 5 and the compactness of spring pressure position 43, above-mentioned load-carrying surface 44 preferably is changed to actively enclose 1
Central axes are the cambered surface in the center of circle, and after protrusion 41 and after actively enclosing 1 inner hole wall 11 and being combined, cambered surface can be with 5 perfection patch of elastic ring
Close, so as to ensure the stability of 41 position of protrusion, but the difficulty of processing of such cambered surface is larger, using plane load-carrying surface 44 still
Corresponding function can be completed, it is plane or cambered surface that producer can select to set load-carrying surface 44 according to their needs.It is above-mentioned
Elastic ring 5 may be employed helical spring head and the tail and be formed by connecting, and elastic rubber ring can also directly be used, as long as elastic ring 5 has
Enough contraction elasticities, the transmission of torsion are not rely on the elastic force of elastic ring 5, therefore to the elastic force of elastic ring 5
Of less demanding, using common wound spring, details are not described herein again.
As shown in figure 4, to prevent axial float occurs for elastic ring 5 from even departing from bayonet lock 4, the lateral surface of driving member 3 is equipped with
For limiting the fixing groove 33 of the axial movement of elastic ring 5, which intersects with bayonet lock slot 32, and elastic ring 5 snaps onto fixation
In slot 33, axial movement is avoided, while the elastic reset function to bayonet lock 4 will not be influenced.
In the present embodiment, axial limiting mechanism uses relatively conventional clamp spring 6, and it is corresponding that two power transmission faces are equipped with position
Jump-ring slot 7, clamp spring 6 are installed in jump-ring slot 7.Axial movement in 1 is actively being enclosed to limit driving member 3 using clamp spring 6, is being had
Compact structure, it is easy for installation the advantages of.
Compared to the conventional spanner of ratchet engagement mode, above-mentioned spanner transmission torsion principle it is entirely different, be according to
Rely in protrusion 41 and the compression for actively enclosing 1 inner hole wall 11, so its torsion upper limit that can bear is no longer dependent on ratchet
Contact area, structural strength, and bayonet lock 4 and the integral strength in two power transmission faces are to rely on, therefore be easy to improve its transmission
The upper limit of torque.When above-mentioned spanner works, the protrusion 41 of all bayonet locks 4 is contacted with actively enclosing 1 inner hole wall 11, and torsion can
To be uniformly distributed on all protrusions 41, producer can increase the quantity of bayonet lock 4 as needed, it might even be possible to make bayonet lock 4
It is distributed on the periphery wall of entire driving member 3, to obtain the torsion delivery threshold of bigger.
Moreover, because bayonet lock 4 is disposed on the periphery wall of driving member 3, length can be slightly less than the outer of driving member 3
The width of peripheral wall, the entire side of protrusion 41 can contact with each other with actively enclosing 1 inner hole wall 11, it is ensured that between the two
With enough frictional force, and protrusion 41 and actively enclose 1 inner hole wall 11 between pressure do not converge, but point
It dissipates in the side of entire protrusion 41, so as to reduce the requirement of the intensity to protrusion 41.
In the present embodiment, 1 is actively enclosed as through-hole structure, and the positive and negative of driving member 3 can coordinate with connector, so
When needing reversely to turn connector, it is only necessary to overturn the reversed torsion transmission that driving member 3 can be realized in spanner.
Embodiment 2：
As different from Example 1, as shown in Fig. 9,10,11,12,13, in the present embodiment, 1 inner hole wall 11 is actively enclosed
Ratchet 12 is evenly equipped with, the extending direction of ratchet 12 is parallel to the central axes for actively enclosing 1, and protrusion both sides are edge of a knife shape, so that convex
Portion 41 is formed as the reciprocal latch structure coordinated with ratchet 12.
Ratchet 12 and the cooperation principle of protrusion 41 (i.e. latch, similarly hereinafter) are similar to Example 1, specific as follows：
As shown in figure 12, elastic ring 5 is shunk under the action of its own resilient, and elastic ring 5 applies to the load-carrying surface 44 of bayonet lock 4
It is intended to the elastic acting force of 5 center of elastic ring (central axes for actively enclosing 1), bayonet lock 4 is promoted to rotate clockwise (in such as Fig. 7
Shown in dotted arrow), the protrusion 41 of bayonet lock 4 is made to be exposed to bayonet lock slot 32 and be engaged with ratchet 12, is so turned clockwise in handle 2
When dynamic (direction as shown in solid arrow in Fig. 7), driving member 3 can under the cooperation of ratchet 12, protrusion 41, with actively enclose 1 and
Handle 2 synchronously rotates clockwise.
As shown in figure 13, it is (square as shown in solid arrow in Fig. 7 when the handle 2 of spanner is inverted and (rotated counterclockwise)
To), the reaction force of ratchet 12 promotes bayonet lock 4 to rotate backward (as represented by dashed arrows in fig. 8) so that the synchronous up time in protrusion 41
Pin rotates, and elastic ring 5 is expanded under the active force of bayonet lock 4 and puts aside elastic potential energy at this time, the protrusion 41 of bayonet lock 4 gradually decrease with
The contact area of ratchet 12, it is final to be slipped over close to being retracted in bayonet lock slot 32 from the back of tooth of ratchet 12, avoid driving member 3 and with
Driving member 3 coordinate connector (such as nut) with actively enclose 1 and handle 2 rotate counterclockwise.In protrusion 41 from the back of tooth of ratchet 12
After slipping over, due to protrusion 41 without ratchet 12 against support, the elastic force of elastic ring 5 makes bayonet lock 4 rotate clockwise and weigh again
Newly protrusion 41 is made to be engaged with next ratchet 12.
By using the fit system of ratchet 12 and protrusion 41, can reduce to protrusion 41, actively enclose 1 inner hole wall 11 it
Between fit clearance requirement on machining accuracy, the part card being likely to occur in embodiment 1 caused by avoiding when machining accuracy is short of
The protrusion 41 of pin 4 can not jam-packed actively enclose 1 inner hole wall 11, between causing driving member 3 and actively enclosing 1 the problem of unbalance stress.
It is of course also possible to which protrusion 41 is arranged at another crest line of bayonet lock 4, and change the inclined direction of ratchet 12,
The rotation direction in 1, protrusion 41 and cooperation and the above-mentioned principle phase of ratchet 12, elastic ring 5 are actively being enclosed so as to change driving member 3
Together, details are not described herein again.
The ratchet of traditional ratchet spanner is typically all monodentate or bi-tooth gearing, is limited be subject to single ratchet intensity, it is difficult to
The upper limit for transferring torque is improved, and all latches in the present embodiment can be engaged with ratchet 12, such torsion can be uniform
It is distributed on all latches, producer can increase the quantity of bayonet lock 4 as needed, and in the present embodiment, bayonet lock 4 has multiple
And uniformly at intervals on the lateral surface of entire driving member 3, therefore compared to for traditional ratchet spanner of monodentate or bi-tooth gearing,
The active force that single ratchet 12 or latch are undertaken in the present embodiment is less, reduces to actively enclosing 1, ratchet 12 and latch itself
The requirement of the strength of materials.Moreover, because bayonet lock 4 and ratchet 11 are disposed on power transmission face, length is close to power transmission face
Width, after bayonet lock 4 is engaged with ratchet 12, the entire side of latch can contact with each other with the entire side of ratchet 12, because
This contact area bigger reduces further the requirement to actively enclosing 1, ratchet 12 and latch own material intensity.
Embodiment 3：
As different from Example 2, as shown in Figure 14,15,16, in the present embodiment, 1 inner hole wall 11 is actively enclosed as the
One power transmission face is simultaneously equipped with bayonet lock slot 32, and the lateral wall of driving member 3 is equipped with ratchet 12 as the second power transmission face, the present embodiment
Other structures and operation principle can refer to embodiment 2, and details are not described herein again.
Certainly, the elastic ring 5 in above-described embodiment 1,2,3 can also be located in the circle that all bayonet locks 4 are surrounded, elastic ring
5 be resisted against simultaneously at the load-carrying surface 44 of springs pressure position 43 of all bayonet locks 4, and the elastic force that is expanded outwardly using elastic ring 5 makes card
Pin 4 resets.
In addition, Figure 17,18 spanners for depicting two kinds of different structures, wherein：
In spanner shown in Figure 17, the both ends of handle 2 are respectively equipped with one and actively enclose 1, and transmission in the active circle 1 at both ends
The rotation direction of part 3 is on the contrary, when needing reversely to turn connector, it is only necessary to turn spanner, actively be enclosed using another in 1
Driving member 3 coordinates with connector, you can realizes that reversed torsion transfers.
In spanner shown in Figure 18, the center of driving member 3 is not quincuncial through hole, but the column that section is positive Polyhedral
Body 34, the cylinder 34 protrude from the surface of spanner, can stretch into and be fitted in sleeve, be matched somebody with somebody by sleeve and connector
It closes.
Claims (10)
1. a kind of big torque-force ratchet spanner including being equipped with the actively body of circle and handle, is actively equipped with driving member, in institute in circle
State the axial limiting mechanism for being actively equipped between circle and driving member and limiting its axially opposing displacement, it is characterised in that：The transmission
The inner hole wall of the lateral wall of part, actively circle forms two nested cylindric power transmission faces, wherein the first power transmission face is equipped with bayonet lock
Slot is rotatably mounted with bayonet lock in bayonet lock slot, and the side of bayonet lock is equipped with protrusion, and the bayonet lock is connected with dynamic clamping head and quiet clamping head, card
It sells and is rotated under the elastic force effect of dynamic clamping head and quiet clamping head, protrusion is driven to protrude from bayonet lock slot and be in contact with the second power transmission face, it is described
The outermost endpoint of protrusion is more than the minimum range in the second power transmission face and bayonet lock central axes with the distance of bayonet lock central axes.
2. big torque-force ratchet spanner according to claim 1, it is characterised in that：The bayonet lock is equipped with spring and presses position, institute
Dynamic clamping head and quiet clamping head is stated as elastic ring, the elastic ring is placed on or is resisted against at the spring pressure position of all bayonet locks, the elastic ring
The active force for by spring position being pressed to be applied to bayonet lock is eccentric in the central axes of bayonet lock, so that bayonet lock is made in the elastic force of dynamic clamping head and quiet clamping head
With lower rotation.
3. big torque-force ratchet spanner according to claim 2, it is characterised in that：The power transmission face or the spring pressure of bayonet lock
It is equipped with to limit the fixing groove that elastic ring moves axially at position.
4. big torque-force ratchet spanner according to claim 3, which is characterized in that the bayonet lock back in the one side of protrusion
For cambered surface, the bayonet lock slot is equipped with the arcuate structure being adapted with the cambered surface.
5. the big torque-force ratchet spanner according to claim 1-4 any one, it is characterised in that：The second power transmission face is equal
Ratchet is furnished with, for the extending direction of ratchet parallel to the central axes of active circle, the protrusion is the latch with ratchet cooperation.
6. according to the spanner described in claim 1-4 any one, it is characterised in that：After polishing is in the first power transmission face
Rough surface or annular knurl face or stripe surface.
7. big torque-force ratchet spanner according to claim 5 or 6, it is characterised in that：The axial limiting mechanism includes card
Spring, described two power transmission faces are equipped with the corresponding jump-ring slot in position, and the clamp spring is installed in jump-ring slot.
8. big torque-force ratchet spanner according to claim 7, it is characterised in that：The active circle is two and sets respectively
In the both ends of the handle, driving member matched with two active circles and bayonet lock positioned there between, elastic reset
The installation direction of part and axial limiting mechanism is opposite.
9. big torque-force ratchet spanner according to claim 7, it is characterised in that：The driving member center is quincuncial logical
Hole or the positive Polyhedral cylinder for protruding from wrenching surface.
10. big torque-force ratchet spanner according to claim 7, it is characterised in that：The dynamic clamping head and quiet clamping head is wound spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133661.XA CN108058121B (en) | 2018-02-09 | 2018-02-09 | Big torque-force ratchet spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133661.XA CN108058121B (en) | 2018-02-09 | 2018-02-09 | Big torque-force ratchet spanner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108058121A true CN108058121A (en) | 2018-05-22 |
| CN108058121B CN108058121B (en) | 2019-10-01 |
Family
ID=62134732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810133661.XA Active CN108058121B (en) | 2018-02-09 | 2018-02-09 | Big torque-force ratchet spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108058121B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019153227A1 (en) * | 2018-02-09 | 2019-08-15 | 何华忠 | High torque ratchet wrench |
| WO2022022134A1 (en) * | 2020-07-29 | 2022-02-03 | 安阳市途鑫机动车鉴定评估有限公司 | Self-locking silent needle roller wrench |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6112624A (en) * | 1998-10-01 | 2000-09-05 | Chen; Yu-Tzu | Rotary lever assembly for a wrench with a direction control mechanism |
| CN201659531U (en) * | 2010-01-05 | 2010-12-01 | 彭桔星 | Ratchet wrench and modified restraining gear structure of same |
| CN201856197U (en) * | 2010-11-17 | 2011-06-08 | 刘莉 | Ratchet wrench |
| CN104149059A (en) * | 2014-07-02 | 2014-11-19 | 苏州市职业大学 | Ratchet wrench |
| CN204546384U (en) * | 2015-04-03 | 2015-08-12 | 浙江亿洋工具制造有限公司 | Ratchet spanner commutating structure |
| CN205799334U (en) * | 2016-06-08 | 2016-12-14 | 杭州骏腾工具制造有限公司 | There is the ratchet spanner of the most fixing screwdriver bit function |
| CN205799327U (en) * | 2016-06-08 | 2016-12-14 | 杭州骏腾工具制造有限公司 | Clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly |
| CN106624609A (en) * | 2015-11-03 | 2017-05-10 | 昰星实业有限公司 | Swivel preparation method and torque tool for manufacturing swivel based on method |
| CN106737340A (en) * | 2016-11-23 | 2017-05-31 | 杭州萧山力源工具厂 | A kind of friction type ratchet wrench |
| CN107344343A (en) * | 2017-08-31 | 2017-11-14 | 昆山义成工具有限公司 | Single direction rotation spanner |
-
2018
- 2018-02-09 CN CN201810133661.XA patent/CN108058121B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6112624A (en) * | 1998-10-01 | 2000-09-05 | Chen; Yu-Tzu | Rotary lever assembly for a wrench with a direction control mechanism |
| CN201659531U (en) * | 2010-01-05 | 2010-12-01 | 彭桔星 | Ratchet wrench and modified restraining gear structure of same |
| CN201856197U (en) * | 2010-11-17 | 2011-06-08 | 刘莉 | Ratchet wrench |
| CN104149059A (en) * | 2014-07-02 | 2014-11-19 | 苏州市职业大学 | Ratchet wrench |
| CN204546384U (en) * | 2015-04-03 | 2015-08-12 | 浙江亿洋工具制造有限公司 | Ratchet spanner commutating structure |
| CN106624609A (en) * | 2015-11-03 | 2017-05-10 | 昰星实业有限公司 | Swivel preparation method and torque tool for manufacturing swivel based on method |
| CN205799334U (en) * | 2016-06-08 | 2016-12-14 | 杭州骏腾工具制造有限公司 | There is the ratchet spanner of the most fixing screwdriver bit function |
| CN205799327U (en) * | 2016-06-08 | 2016-12-14 | 杭州骏腾工具制造有限公司 | Clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly |
| CN106737340A (en) * | 2016-11-23 | 2017-05-31 | 杭州萧山力源工具厂 | A kind of friction type ratchet wrench |
| CN107344343A (en) * | 2017-08-31 | 2017-11-14 | 昆山义成工具有限公司 | Single direction rotation spanner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019153227A1 (en) * | 2018-02-09 | 2019-08-15 | 何华忠 | High torque ratchet wrench |
| US11491613B2 (en) | 2018-02-09 | 2022-11-08 | Huazhong He | High-torque ratchet wrench |
| WO2022022134A1 (en) * | 2020-07-29 | 2022-02-03 | 安阳市途鑫机动车鉴定评估有限公司 | Self-locking silent needle roller wrench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108058121B (en) | 2019-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3242775A (en) | Wrench for engaging nut flats to inhibit marring the nut | |
| CN106737340B (en) | A kind of friction type ratchet wrench | |
| US9969066B2 (en) | Ratchet screwdriver | |
| US5282830A (en) | Open-end ratchet wrench | |
| GB2048738A (en) | Fastener and driver assembly | |
| US8424421B1 (en) | Jog-shuttle type ratchet wrench | |
| CN108058121A (en) | Big torque-force ratchet spanner | |
| US4608887A (en) | Adjustable socket including rotatable adjuster | |
| US3868873A (en) | End wrench with ratcheting capabilities | |
| US2719446A (en) | Ratchet wrench | |
| CN208147716U (en) | Big torque-force ratchet spanner | |
| JP6579765B2 (en) | Joining method and joining auxiliary tool for inner surface joint | |
| CN106181836A (en) | Spanner | |
| CN204935477U (en) | A kind of lug wrench | |
| CN208992594U (en) | A kind of medical hospital bed guardrail special handling tool | |
| CN208592768U (en) | Box spanner | |
| EP1638736A1 (en) | A fastening tool for screw threaded bolts | |
| CN217703186U (en) | Sleeve driver capable of realizing rotation at any reverse angle | |
| JP2001353664A (en) | Socket wrench | |
| CN108372479A (en) | A kind of combined sleeve spanner | |
| CN217801394U (en) | Ratchet wrench for cigarette transfer wheel | |
| CN105328612A (en) | Spanner | |
| CN208215203U (en) | combined sleeve spanner | |
| CN210081584U (en) | Adjustable wrench with functions of rotating handle and telescopic head ratchet sleeve | |
| CN215548261U (en) | Multi-specification wrench |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |