The utility model content
Because the above-mentioned defective of prior art, technical problem to be solved in the utility model provides a kind of Two-way spanner, realizes switching easily the main shaft rotation direction of torque spanner.
For achieving the above object, the utility model provides a kind of Two-way spanner, comprises operate portions and handle, and described operate portions comprises main shaft, and described main shaft is used for output torque and its axis normal in described handle; Driving gear, driven gear, intermediate gear shaft and idler gear, described driving gear, driven gear and intermediate gear shaft all are set on the described main shaft, the axis of described intermediate gear shaft and the axis normal of described main shaft, described idler gear is installed on the described intermediate gear shaft, and be engaged in transmission between described driving gear and the described driven gear, wherein said handle drives described driving gear and rotates, described intermediate gear shaft is installed with a grip device outward, state grip device when gripping the residence, rotate described handle when driving described driving gear and rotating, described driving gear drives described driven gear reverse rotation by described idler gear; First ratchet face that rotates with driving gear, and second ratchet face that rotates with driven gear; Can drive first pawl element and second pawl element that described main shaft rotates; Wherein said first pawl element has first ratchet and second ratchet that optionally cooperates with described first ratchet face, wherein said first ratchet skids with described first ratchet face on first direction, on second direction, then engage transmission with described first ratchet face, described second ratchet engages transmission with described first ratchet face on first direction, then skid with described first ratchet face on second direction; Described second pawl element has the 3rd ratchet and the 4th ratchet that optionally cooperates with described second ratchet face, wherein said the 3rd ratchet skids with described first ratchet face on first direction, on second direction, then engage transmission with described first ratchet face, described the 4th ratchet engages transmission with described first ratchet face on first direction, then skid with described first ratchet face on second direction; Reversing switch, described reversing switch can be arranged on first state and second state with described first pawl element and described second pawl element, under described first state, described first ratchet and described the 3rd ratchet cooperate with described first ratchet face and second ratchet face respectively simultaneously; Under described second state, described second ratchet and described the 4th ratchet cooperate with described first ratchet face and second ratchet face respectively simultaneously; Described first direction is clockwise or counterclockwise, described second direction be with first party in the opposite direction.
In a further embodiment, described handle has toroidal head portion, and described first ratchet face is arranged on the inner ring of described toroidal head portion.
In a further embodiment, described first ratchet face is arranged on the inner ring of described driving gear.
In a further embodiment, described second ratchet face is arranged on the inner ring of described driven gear.
In a further embodiment, described grip device is gripper rings.
In a further embodiment, described first pawl element and/or second pawl element are fan-shaped.
In a further embodiment, described first pawl element and second pawl element are installed on the countershaft, and the axis of described countershaft is parallel with described main shaft and do not overlap with described main shaft, and described countershaft and described main shaft link, and can drive described main shaft and rotate.
In a further embodiment, described countershaft is located among the described main shaft.
In a further embodiment, described reversing switch comprises newel, the first bulb plunger and the second bulb plunger, described newel is placed through in the described main shaft, the described first bulb plunger and the described second bulb plunger are fixed on the described newel successively, and the described first bulb plunger and the described second bulb plunger cooperate with described first pawl element and second pawl element respectively.
In a further embodiment, be provided with spring in the described first bulb plunger and the described second bulb plunger.
Two-way spanner of the present utility model has been realized two kinds of mode of operations and can have been changed easily between two kinds of mode of operations.When using Two-way spanner of the present utility model, the input torque that the user imports is clockwise moment alternately or counter clockwise direction moment, and it is clockwise moment and counter clockwise direction moment that the output torque of the output of Two-way spanner of the present utility model is selected a ground.
Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, feature and effect fully.
The specific embodiment
As illustrated in fig. 1 and 2, comprise handle 20 and operate portions 10 according to the Two-way spanner of a specific embodiment of the present utility model, handle 20 longitudinal extensions and the head 21(by its ring-type are referring to Fig. 3) be socketed on the operate portions 10.Operate portions 10 inside are provided with main shaft 100, the outside is provided with gripper rings 102.One end of main shaft 100 is the output 101 that extends to outside the head 21 of operate portions 10 and handle 20.Output 101 can be by installing different sleeves to be configured to be applicable to the configuration of various securing members such as operation exterior angle screw.
Two-way spanner of the present utility model comprises transmission device and the reversing arrangement that connects with it, be sent to the main shaft 100 of operate portions 10 by transmission device from the input torque of handle 20, and optionally to make the direction of the output torque of output 101 output by reversing arrangement be first direction or second direction, and wherein first direction is opposite with second direction.For example, the input torque of operate portions 10 is clockwise moment or counter clockwise direction moment, and the output torque of output 101 outputs is clockwise moment; Perhaps, the input torque of operate portions 10 is clockwise moment or counter clockwise direction moment, and the output torque of output 101 outputs is counter clockwise direction moment.
The structure of the transmission device of Two-way spanner of the present utility model comprises first ratchet face 311, driving gear 312, second ratchet face 321, driven gear 322, intermediate gear shaft 330, idler gear 331 and 332 as shown in Figure 3.Wherein, first ratchet face 311 links to each other with driving gear 312 and is coaxial, in the present embodiment, first ratchet face 311 is fixedly arranged on the inner ring of head 21 of the ring-type of handle 20, driving gear 312 is fixedly connected on the head 21 of handle 20, and when handle 20 rotated, its head 21 can drive driving gear 312 and rotate simultaneously like this, in other embodiments, first ratchet face 311 also can be arranged on the inner ring of driving gear 312; Second ratchet face 321 is arranged on the inner ring of driven gear 322.The flank of tooth of first ratchet face 311 and second ratchet face 321 is relative with the outer peripheral face of main shaft 100; Driving gear 312 and driven gear 322 are face gears, and the flank of tooth of driving gear 312 and driven gear 322 toward each other.First ratchet face 311, second ratchet face 321, driving gear 312 and driven gear 322 is all coaxial and the central axes of its central axis and main shaft 100.
Intermediate gear shaft 330 is fixedly linked with gripper rings 102.Idler gear 331,332 is installed on the intermediate gear shaft 330, and intermediate gear shaft 330 is vertical with main shaft 100.Idler gear 331,332 is engaged between driving gear 312 and the driven gear 322, their tooth respectively with the flank of tooth of driving gear 312 and driven gear 322 on the indented joint transmission, when gripper rings 102 is fixed, that is intermediate gear shaft 330 is when maintaining static, and driving gear 312 can pass through idler gear 331,332 and drive driven gears 322 and its reverse rotations when rotating.In the present embodiment, idler gear 331,332 is all bevel gear.
The structure of the reversing arrangement of Two-way spanner of the present utility model comprises the reversing switch and first pawl element 211 and second pawl element 212 that are made of newel 220, the first bulb plunger 221 and the second bulb plunger 222 as shown in Figure 4.Wherein, newel 220 is installed in the main shaft 100, the first bulb plunger 221 and the second bulb plunger 222 are fixed on the newel 220 successively, the activity direction of the bulb part of the first bulb plunger 221 and the second bulb plunger 222 is vertical with main shaft 110, preferably, in the first bulb plunger 221 and the second bulb plunger 222, be combined with flexible members such as spring.First pawl element 211 and second pawl element 212 are installed on the main shaft 100 by countershaft 210, as shown in Figure 5, countershaft 210 is parallel to main shaft 100 but its central axis does not coincide with the central axis of main shaft 100, and first pawl element 211 and second pawl element 212 can rotate around countershaft 210.
The structural similarity of first pawl element 211 and second pawl element 212 all comprises the first fan-shaped ratchet, the second fan-shaped ratchet and fan-shaped mid portion between the two.Be example with first pawl element 211, Fig. 6 has shown the top view (i.e. 101 the direction along main shaft 100 to output) of first pawl element 211, as can be seen from Figure 6, first pawl element 211 comprises the first fan-shaped ratchet 2111, the second fan-shaped ratchet 2112 and fan-shaped mid portion 2110 between the two.The fan-shaped tooth surface of the sector of the fan-shaped tooth surface of the first fan-shaped ratchet 2111, fan-shaped mid portion 2110 and the second fan-shaped ratchet 2112 has constituted the first surface of first pawl element 211.First pawl element 211 also has second surface, and this is a shaped face, and in the present embodiment, it comprises a recess 2113, and recess 2113 has the first side wall 2114 and second sidewall 2115.The first side wall 2114 and second the sidewall 2115 all direction of main shaft 100 extend.Have the via hole 2101 that cooperates with countershaft 210 in first pawl element 211, countershaft 210 passes via hole 2,101 first pawl element 211 is installed in (as shown in Figure 5) on the main shaft 100.In the present embodiment, via hole 2101 is arranged on the fan-shaped mid portion 2110 of first pawl element 211, preferably, is arranged on the center of gravity place of first pawl element 211.The structure of second pawl element 212 is similar to first pawl element 211, do not give unnecessary details at this, its thickness (i.e. the length of extending along main shaft 100) is less than the thickness of first pawl element 211 in the present embodiment, but in other embodiments, its thickness also can equate with the thickness of first pawl element 211, perhaps greater than the thickness of first pawl element 211.
The first surface of first pawl element 211 and second pawl element 212 flank of tooth with first ratchet face 311 and second ratchet face 321 respectively is relative, particularly, the tooth of the fan-shaped ratchet of first pawl element 211 (comprising the first fan-shaped ratchet 2111 and the second fan-shaped ratchet 2112) is relative with the tooth of first ratchet face 311, and the tooth of the fan-shaped ratchet of second pawl element 212 (comprising the first fan-shaped ratchet and the second fan-shaped ratchet) is relative with the tooth of second ratchet face 321.The second surface of first pawl element 211 and second pawl element 212 is surperficial relative with newel 220 respectively, particularly, the second surface of first pawl element 211 is relative with the ball head branch of the first bulb plunger 221, and the ball head of the second surface of second pawl element 212 and the second bulb plunger 222 divides relative.By pivot post 220, can make the ball head of the first bulb plunger 221 divide the first side wall 2114 of the recess 2113 of contact first pawl element 211, make the ball head of the second bulb plunger 222 divide the first side wall of the recess of contact second pawl element 212 simultaneously, this moment, Two-way spanner of the present utility model was in first kind of mode of operation; Perhaps, make the ball head of the first bulb plunger 221 divide second sidewall 2115 of the recess 2113 of contact first pawl element 211, make the ball head of the second bulb plunger 222 divide second sidewall of the recess of contact second pawl element 212 simultaneously, this moment, Two-way spanner of the present utility model was in second kind of mode of operation.
When Two-way spanner of the present utility model is in first kind of mode of operation, as shown in Figure 7, the tooth of the first fan-shaped ratchet 2111 of first pawl element 211 and the toe joint of first ratchet face 311 touch, and be same, and the tooth of the first fan-shaped ratchet of second pawl element 212 and the toe joint of second ratchet face 321 touch.Head 21 drives first ratchet face 311 rotations when handle 20, when the direction of motion at the tooth of first ratchet face 311 at the first fan-shaped ratchet, 2111 places is when pointing to the second fan-shaped part 2112 from the first fan-shaped part 2111, when namely first ratchet face 311 as shown in Figure 7 clockwise rotates, because what the ball head of the first bulb plunger 221 divided contact is the first side wall 2114 of the recess 2113 of first pawl element 211, first ratchet face 311 can not drive first pawl element 211 and play rotation with one, and namely the tooth of the first fan-shaped ratchet 2111 does not engage transmission with the tooth of first ratchet face 311; And when the direction of motion at the tooth of first ratchet face 311 at the first fan-shaped ratchet, 2111 places be when pointing to the first fan-shaped part 2111 from the second fan-shaped part 2112, when namely first ratchet face 311 as shown in Figure 7 rotates counterclockwise, because the ball working portion of the first bulb plunger 221 contacts the first side wall 2114 of the recess 2113 of first pawl element 211, first ratchet face 311 can drive first pawl element 211 and play rotation, i.e. the indented joint transmission of the tooth of the first fan-shaped ratchet 2111 and first ratchet face 311 with one.And the rotation of first pawl element 211 is passed to main shaft 100 by countershaft 210, rotates thereby drive main shaft 100.
Simultaneously, when in the direction of motion of the tooth of second ratchet face 321 at the first fan-shaped ratchet place of second pawl element 212 for to point to the second scallop timesharing from the first fan-shaped part of second pawl element 212, when namely second ratchet face 321 clockwise rotates, because the contact of the ball working portion of the second bulb plunger 222 is the first side wall of the recess of second pawl element 212, second ratchet face 321 can not drive second pawl element 212 and play rotation with one, and namely the tooth of the first fan-shaped ratchet of second pawl element 212 does not engage transmission with the tooth of second ratchet face 321; And when in the direction of motion of the tooth of second ratchet face 321 at the first fan-shaped ratchet place of second pawl element 212 for to point to the first scallop timesharing from the second fan-shaped part of second pawl element 212, when namely second ratchet face 321 rotates counterclockwise, because the ball working portion of the second bulb plunger 222 contacts the first side wall of the recess of second pawl element 212, second ratchet face 321 can drive second pawl element 212 and play rotation, i.e. the indented joint transmission of the tooth of the first fan-shaped ratchet of second pawl element 212 and second ratchet face 321 with one.And the rotation of second pawl element 212 is passed to main shaft 100 by countershaft 210, rotates thereby drive main shaft 100.
Because aforesaid idler gear 331,332 and the transmission of driving gear 312 and driven gear 322, when gripper rings 102 maintained static, the rotation direction of second ratchet face 321 was opposite with first ratchet face 311.Hence one can see that, be in first kind of mode of operation at Two-way spanner of the present utility model, when the input torque from operate portions 10 is clockwise moment, it clockwise rotates first ratchet face 311, and second ratchet face 321 rotates counterclockwise, and this moment, first pawl element 211 did not connect with first ratchet face 311, second pawl element 212 connects with second ratchet face 321, thus, second pawl element 212 rotates counterclockwise main shaft 100, and output torque is anticlockwise moment; When the input torque from operate portions 10 is anticlockwise moment, it rotates counterclockwise first ratchet face 311, second ratchet face 321 clockwise rotates, this moment, first pawl element 211 connected with first ratchet face 311, second pawl element 212 does not connect with second ratchet face 321, thus, first pawl element 211 rotates counterclockwise main shaft 100, and output torque is anticlockwise moment.
When Two-way spanner of the present utility model is in second kind of mode of operation, the tooth of the second fan-shaped ratchet 2112 of first pawl element 211 and the toe joint of first ratchet face 311 touch, equally, the toe joint of the tooth of the second fan-shaped ratchet of second pawl element 212 and second ratchet face 321 touches.When making first ratchet face 311, the input torque from operate portions 10 rotates, when the direction of motion at the tooth of first ratchet face 311 at the second fan-shaped ratchet, 2112 places is when pointing to the second fan-shaped part 2112 from the first fan-shaped part 2111, when namely first ratchet face 311 clockwise rotates, because the ball head of the first bulb plunger 221 divides second sidewall 2115 of the recess 2113 of contact first pawl element 211, first ratchet face 311 can drive first pawl element 211 and play rotation, i.e. the indented joint transmission of the tooth of the second fan-shaped ratchet 2112 and first ratchet face 311 with one; And the rotation of first pawl element 211 is passed to main shaft 100 by countershaft 210, rotates thereby drive main shaft 100.And when the direction of motion at the tooth of first ratchet face 311 at the second fan-shaped ratchet, 2112 places be when pointing to the first fan-shaped part 2111 from the second fan-shaped part 2112, when namely first ratchet face 311 rotates counterclockwise, because what the ball head of the first bulb plunger 221 divided contact is second sidewall 2115 of the recess 2113 of first pawl element 211, first ratchet face 311 can not drive first pawl element 211 and play rotation with one, and namely the tooth of the second fan-shaped ratchet 2112 does not engage transmission with the tooth of first ratchet face 311.
Simultaneously, when in the direction of motion of the tooth of second ratchet face 321 at the second fan-shaped ratchet place of second pawl element 212 for to point to the second scallop timesharing from the first fan-shaped part of second pawl element 212, when namely second ratchet face 321 clockwise rotates, because the ball head of the second bulb plunger 222 divides second sidewall of the recess of contact second pawl element 212, second ratchet face 321 can drive second pawl element 212 and play rotation, i.e. the indented joint transmission of the tooth of the second fan-shaped ratchet of second pawl element 212 and second ratchet face 321 with one; And the rotation of second pawl element 212 is passed to main shaft 100 by countershaft 210, rotates thereby drive main shaft 100.And when in the direction of motion of the tooth of second ratchet face 321 at the second fan-shaped ratchet place of second pawl element 212 for to point to the first scallop timesharing from the second fan-shaped part of second pawl element 212, when namely second ratchet face 321 rotates counterclockwise, because the contact of the ball working portion of the second bulb plunger 222 is second sidewall of the recess of second pawl element 212, second ratchet face 321 can not drive second pawl element 212 and play rotation with one, and namely the tooth of the second fan-shaped ratchet of second pawl element 212 does not engage transmission with the tooth of second ratchet face 321.
Because aforesaid idler gear 331,332 and the transmission of driving gear 312 and driven gear 322, when gripper rings 102 maintained static, the rotation direction of second ratchet face 321 was opposite with first ratchet face 311.Hence one can see that, be in second kind of mode of operation at Two-way spanner of the present utility model, when the input torque from operate portions 10 is clockwise moment, it clockwise rotates first ratchet face 311, and second ratchet face 321 rotates counterclockwise, and this moment, first pawl element 211 connected with first ratchet face 311, second pawl element 212 does not connect with second ratchet face 321, thus, first pawl element 211 clockwise rotates main shaft 100, and output torque is clockwise moment; When the input torque from operate portions 10 is anticlockwise moment, it rotates counterclockwise first ratchet face 311, second ratchet face 321 clockwise rotates, this moment, first pawl element 211 did not connect with first ratchet face 311, second pawl element 212 connects with second ratchet face 321, thus, second pawl element 212 clockwise rotates main shaft 100, and output torque is clockwise moment.
As previously mentioned, by pivot post 220, can make between first kind of mode of operation of Two-way spanner of the present utility model and second kind of mode of operation and switch, select.For easy to use, in the present embodiment, as shown in Figure 8, be provided with turn-button 223 at the first end of newel 220, embed turn-button 223 by two ears (as the ear 2201 among Fig. 8) that make newel 220 and realize cooperating between newels 220 and the turn-button 223.Like this, by rotating turn-button 223, can make newel 220 rotations.Turn-button 223 in the present embodiment is provided with two spines that protrude from the surface of turn-button 223, as spine 2231, and can be by two spines that comprise spine 2231 being applied turning moment to rotate turn-button 223 during use.
Two-way spanner of the present utility model also comprises stopping means, and it makes Two-way spanner of the present utility model remain on selected mode of operation and switches to other mode of operation up to the user.As shown in Figures 9 and 10, stopping means in the present embodiment comprises a hoodle 400 between the second end that is arranged on output 101 and newel 220, and at the groove that the hoodle 400 of the second end of newel 220 cooperates, be in particular first groove 410 and second groove 420.First groove 410 and second groove 420 extend parallel to each other and are separated by smooth ridge between the two.
When hoodle 400 is in first groove 410, the ball working portion of the first bulb plunger 221 and the second bulb plunger 222 keeps itself and the contacting of the first side wall of first pawl element 211 and the recess of second pawl element 212, and namely Two-way spanner of the present utility model is maintained at first kind of mode of operation; When hoodle 400 is in second groove 420, the ball working portion of the first bulb plunger 221 and the second bulb plunger 222 keeps itself and the contacting of second sidewall of the recess of first pawl element 211 and second pawl element 212, and namely Two-way spanner of the present utility model is maintained at second kind of mode of operation.When rotating turn-button 223, make newel 220 rotations, and when making hoodle 400 enter second groove 420 from first groove 410, Two-way spanner of the present utility model enters second kind of mode of operation from first kind of mode of operation; When rotating turn-button 223, make newel 220 rotations, and when making hoodle 400 enter first groove 410 from second groove 420, Two-way spanner of the present utility model enters first kind of mode of operation from second kind of mode of operation.
In the present embodiment, intermediate gear shaft 330 is fixedlyed connected with gripper rings 102, intermediate gear shaft 330 is fixing with respect to gripper rings 102, when operate portions 20 was rotated with respect to gripper rings 102, idler gear 331,332 made the rotation direction of driven gear 322 and the direction of rotation of driving gear 312 thus.In use, in order to make idler gear 331,332 work, opposite with first ratchet face 311 with the rotation direction that guarantees second ratchet face 321, the user can make intermediate gear shaft 330 location by the mode that grips gripper rings 102, thereby idler gear 331,332 rotates under the drive of driving gear 312, and then drive driven gear 322 rotations, thereby second ratchet face 321 and first ratchet face 311 are oppositely rotated.Need to prove, in other embodiment of the present utility model, also can take other mode to locate intermediate gear shaft 330, and make idler gear 331,332 work.
In addition, as previously mentioned, the output 101 of Two-way spanner of the present utility model can be by installing different sleeves to be configured to be applicable to the configuration of various securing members such as operation exterior angle screw, at this moment, the hoodle 400 in the stopping means of Two-way spanner of the present utility model can also be used for each sleeve that is installed on output 101 is carried out screens.
More than describe preferred embodiment of the present utility model in detail.The ordinary skill that should be appreciated that this area need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technical staff in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.