CN202805032U - Reversing ratchet wrench - Google Patents

Abstract

The utility model provides a reversing ratchet wrench comprising a grab handle, a head, a driving head, a direction dialing knob, a first dog, and a second dog. The head defines a first compartment and a second compartment; the first compartment and the second compartment are communicated with each other through an intermediate part; the driving head comprises an annular driving tooth part and a driving end, which are received in the first compartment; the direction dialing knob is received in the second compartment and is capable of moving between a first position and a second position; each of the first and second dogs is provided with a plurality of ratchets meshed with the annular driving tooth part; the dogs are received in the intermediate part in a stacked manner; and the direction dialing knob drives the dogs to be pressed against or meshed with the annular driving tooth part. Because of tooth difference between the first dog and the second dog, one of the first dog and the second dog is meshed with the annular driving tooth part while the other abuts on the annular driving tooth part. When the direction dialing knob is located on the first position, the direction dialing knob elastically drives the first and second dogs to abut on one side, which is located on the inner wall of the intermediate part, of the head, so that the wrench idles along a first direction. When the direction dialing knob is located on the second position, the direction dialing knob elastically drives the first and second dogs to abut on the other side, which is located on the inner wall of the intermediate part and is opposite to the one side, of the head, so that the wrench idles along a second direction.

Description

Reversing ratchet wrench

Technical field

The utility model system is relevant for a kind of reversing ratchet wrench, particularly about a kind of reversing ratchet wrench that reduces the required angle of revolution of idle running.

Background technology

In the technical field of hand-held tool, ratchet spanner (ratchet wrench) brings great convenience for the user.Ratchet spanner can in the limited space of operation, provide the user not needing spanner to be broken away from the function that provides idle running to pull back under the state of securing member, to promote operating efficiency.The ratchet spanner development has been quite ripe technology so far, so also develop switchable ratchet spanner.These ratchet spanneres capable of reversing are usually by one group of valve part on spanner, the idle running of the adjusting spanner direction of pulling back, thereby this kind spanner do not overturn towards situation under, two kinds of direction of rotation can be provided simultaneously, more convenient for the user.Existing patent quite a lot is delivered in this technical field of ratchet spanner, belongs to crowded technical field (crowded art).For example, I350231 number exposure one of TW invention bulletin avoids collapsing the ratchet wrench capable of reversing of tooth, and United States Patent (USP) is announced No. 2 patents of US 6918323B a kind of ratchet spanner capable of reversing of improveing ratchet etc. is provided.

Yet ratchet spanner capable of reversing still has its shortcoming now.For example, under very limited operating space, the angle that spanner idle running is pulled back is also very limited, and the ratchet number that so causes the spanner pallet can skip when idle running is pulled back is less, can finish the work so that the user must increase the number of times that turn Fastener/idle running pulls back, cause operating efficiency low.In addition, because known ratchet spanner is when the energetically operation of user moment, still have ratchet and pallet can't cooperate simultaneously rotation and keep relative position relation, cause ratchet and pallet relative slippage of moment to get loose to cause the spanner damage, even thereby cause the situation of work danger.In view of this, be necessary to provide one can very promote operating efficiency in the limited operation space in fact, and the while can be guaranteed the ratchet spanner that the relative position relation of ratchet and pallet all can remain unchanged under any use state.

The utility model content

A purpose of the present utility model is providing one can promote the ratchet spanner of operating efficiency in the limited operation space.

Another purpose of the present utility model is providing one can guarantee the ratchet spanner that the relative position relation of ratchet and pallet does not change under any use state.

According to an embodiment of the present utility model, the utility model provides a kind of ratchet spanner, comprises a lever; One head, described head define one first compartment and one second compartment, and described the first compartment and the second compartment interconnect by a mid portion; One driving head comprises the annular drive tooth section and the drive end that are placed in described the first compartment; One direction toggle is placed in described the second compartment, and described direction toggle can move between a primary importance and a second place; One first pallet and one second pallet, have respectively to mesh a plurality of ratchets of described annular drive tooth, described the first pallet and the second pallet are stacked being placed in the described mid portion, and described direction toggle forces described the first pallet and the second pallet to support or mesh described annular drive tooth section; It is poor that wherein said the first pallet and described the second pallet have tooth, makes the one of described the first pallet and described the second pallet mesh described annular drive tooth section and another one against described annular drive tooth section; Wherein when described direction toggle is positioned at described primary importance, described direction toggle flexibly forces described the first pallet and described the second pallet to be positioned at a side of the inwall of described mid portion against described head, described spanner can be dallied along a first direction, when described direction toggle is positioned at the described second place, described direction toggle flexibly forces described the first pallet and the second pallet to be positioned at the inwall of described mid portion with respect to the opposite side of described side against described head, and described spanner can be dallied along a second direction.

Further, the ratchet spanner that the utility model provides comprises one first and supports bar and one second and support bar, described first supports bar and second supports an end of bar and is placed in the groove of described direction toggle by one first elastic component and the second elastic component respectively, and described first supports bar and second supports the other end of bar and support respectively described the first pallet and described the second pallet.

According to another embodiment of the present utility model, its second compartment of the ratchet spanner that the utility model provides has a blind hole near the inwall of lever side, one the 3rd supports bar is inserted in the described blind hole by one the 3rd elastic component, and the described the 3rd supports the rear surface that bar is flexibly supported described direction toggle.

Further, described the first pallet has a dimple, two relative sliding surfaces that described dimple defines a central spine, extend from described central spine, and from two relative support surfaces of described two relative sliding surfaces extensions.

Further, the bottom of described the first pallet has a notch part.

Further, described the second pallet has a dimple, two relative sliding surfaces that described recess defines a central spine, extend from described central spine, and from two relative support surfaces of described two relative sliding surfaces extensions.

Further, first of described direction toggle support the dimple that bar is supported described the first pallet.

Further, second of described direction toggle support the dimple that bar is supported described the second pallet.

Further, the tooth of the ratchet of the ratchet of described the first pallet and described the second pallet is poor to be the half tooth distance, and when the idle running of described spanner was pulled back, the ratchet of the ratchet of described the first pallet and described the second pallet alternately meshed described annular drive tooth section.

Further, described drive end is a drive hole that is formed in the described annular drive tooth section.

The utility model will illustrate with reference to the accompanying drawings further that wherein said accompanying drawing is that the summary demonstration is according to preferred embodiment of the present utility model.Should be appreciated that the utility model is in office, and where face is all is confined to preferred embodiment.

Description of drawings

Fig. 1 is the part explosive view according to reversing ratchet wrench of the present utility model;

Fig. 2 is the part enlarged drawing of Fig. 1;

Fig. 3 a and Fig. 3 b illustrate respectively three-dimensional structure diagram and the upward view of pallet 40;

Fig. 3 c and Fig. 3 d illustrate respectively three-dimensional structure diagram and the upward view of pallet 42;

Fig. 4 a and 4b are after pallet is installed and the structural representation of driving head assembly 20 and direction toggle 30;

Fig. 5 a and 5b are the structural representation of the annular drive tooth section of pallet engagement driving head;

Fig. 6 a and 6b are respectively the spanner structure schematic diagram that the utility model direction toggle is positioned at primary importance and the second place.

[primary clustering symbol description]

1 ratchet spanner

10 levers

12 heads

121 surfaces

123 surfaces

125 first compartments

127 second compartments

129 mid portions

131 blind holes

133 support bar

135 tanks

137 elastic components

1291 inwalls

1292 inwalls

20 driving head assemblies

22 depression bars

24 driving heads

222 steel balls

224 elastic components

242 annular drive tooth sections

244 drive ends

246 through holes

248 perforation

250 steel balls

30 direction toggles

32 driving levers

34 center pillars

36 base plates

342 spaces

344 grooves

346 rear surfaces

382 elastic components

384 support bar

386 tanks

40 pallets

42 pallets

402 spines

404 sliding surfaces

406 support surfaces

408 abutment faces

410 bights

412 ratchets

414 dimples

416 notch parts

422 spines

424 sliding surfaces

426 support surfaces

428 abutment faces

430 bights

432 ratchets

434 dimples

50 shroudings

52 garter springs

501 openings

503 0 shapes ring

505 0 shapes ring

The a axis

The b axis

The specific embodiment

Fig. 1 shows the part explosive view of reversing ratchet wrench 1 of the present utility model, and wherein ratchet spanner 1 has a lever 10, and is connected in the head 12 of an end of lever 10.For ease of understanding the structure of head 12, the head 12 shown in Fig. 1 is the part sectional drawing.Define one first compartment 125 and one second compartment 127 that run through head 12 on one surface 121 of head 12.The first compartment 125 and the second compartment 127 (see that Fig. 5 a) communicates with each other, so described the second compartment 127 and mid portion 129 can form a space that is positioned at described the first compartment 125 belows jointly by a mid portion 129.The first compartment 125, the second compartment 127 and mid portion 129 (are seen the depression that formation during Fig. 5 a) can accommodating part at head 12 with respect to 121 surface 123, surface.

The first compartment 125 is that driving head assembly 20 comprises a depression bar 22 and driving head 24 in order to an accommodating driving head assembly 20.Driving head has an annular drive tooth section 242 and from a drive end 244 of described annular drive tooth section 242 projections, driving head 24 forms a through hole 246 vertically, through hole 246 can be from bottom to top sequentially an accommodating elastic component 224, a steel ball 222 and described depression bar 22.Radially form a perforation 248 that is communicated with through hole 246 on one surface of drive end 244, in order to an accommodating steel ball 250, and bore a hole 248 through configuration so that steel ball 250 only can have part to expose to outside the surface at described perforation 248 places at the most.By this, when depression bar 22 is in one not during depressed position, elastic component 224 is supported steel ball 222, be located at the position that flushes with the steel ball 250 that is arranged in perforation 248 in the described through hole 246, this moment, steel ball 222 forced steel ball 250 to push against perforation 248 in the surface opening of drive end 248 and part exposes, and this moment, external force can't be pressed into steel ball 250 in perforation 248.And when being pressed downwardly onto, depression bar 22 reaches one when pressing down the position, depression bar 22 and steel ball 222 compression elastic pieces 224, cause steel ball 222 to leave in through hole 246 and perforation 248 positions that flush, this moment, steel ball 250 can be because of in the external force retraction perforation 248, and the obstruction of compression rod 22 and be unlikely to fall into fully in the through hole 246, and only have part to be arranged in through hole 246.By this, operating personnel can be by pressing moulded rod 22, and driving head assembly 20 is inserted in the known sleeve, discharges subsequently depression bar 22 and make corresponding depression in the known tube-in-tube structure of steel ball 250 clips, is beneficial to carry out the locking of a securing member or the operation that gets loose.

Certainly, the drive end of driving head 24 244 and nonessential be the kenel shown in Fig. 1, drive end 244 can be interior hexagonal bottle opener pattern, cross-head screwdriver form etc. all be suitable for being rotated with/unscrewing the tool heads pattern of existing securing member.Or driving head 24 can not have the drive end that is stretched on outside the head 12, with members such as depression bar 22, steel balls 224, and changing annular drive tooth 242 inside (being through hole 246) to be formed a drive hole, described drive hole can present double offset ring spanner pattern etc., and all are suitable for being rotated with/unscrewing the spanner drive hole pattern of existing securing member.

Fig. 2 is the part enlarged drawing of Fig. 1, and wherein direction toggle 30 comprises top driving lever 32, center pillar 34 and base plate 36.Direction toggle 30 is to be placed in the second compartment 127, and top driving lever, center pillar 34 and base plate 36 can be one-body molded.Direction toggle 30 can move between the primary importance shown in Fig. 6 a and 6b and the second place by stirring top driving lever 32, with the first idle running direction and the second idle running direction that defines spanner.Center pillar 34 inside contracts with respect to base plate 36 in the anterolateral system in the face of the first compartment 125, make top, base plate 34 front sides have a space that inside contracts 342, the center pillar 34 that the front side inside contracts has more a groove 344 (seeing Fig. 4 b), the stacked push rod 384 that balances or cancel each other is after elastic component 382 inserts respectively the described rear tank 386 of supporting bar 384 up and down, insert again and be placed in the groove 344, elastic component 382 props up the diapire of groove 344 under uncompressed state by this, is stretched on outside the groove 344 and support bar.The rear side of center pillar 34 defines a rear surface 346, and it can be the cambered surface corresponding to the wall curve of the second compartment 127.Be formed with a blind hole 131 on the interior sidewall surface of the second compartment 127 near a side of lever 10 again, one supports bar 133 rear tanks 135 insert an elastic component 137 after, supporting bar 133 is inserted in the blind hole 131, elastic component 138 props up the diapire of blind hole 131 under uncompressed state by this, and support bar 133 be stretched on blind hole 131 outside.When direction toggle 30 is mounted in the second compartment 127, needing to support bar 133 presses down, so that the rear surface 346 of the center pillar 34 of direction toggle 30 is able at any time all lean rear surface 346 and apply one against power by the elastic force of elastic component 137 and support bar 133 after installing against supporting bar 133.

Fig. 3 a and Fig. 3 b illustrate respectively three-dimensional structure diagram and the upward view of pallet 40.As shown in the figure, pallet 40 has a plurality of ratchets 412, and it roughly presents the arcuation of definable Radius towards the both sides extension, and ratchet 412 can be covered with a side of pallet 40 continuously, also can only be laid on the partial-length of described side.Pallet 40 forms a dimple 414 at the opposite side with respect to a plurality of ratchets 412, and the central authorities of dimple 414 can only give prominence to form a spine 402 slightly, and roughly become bilateral symmetry take spine 402 as axis.Dimple 414 extends to both sides from spine's 402 beginnings, and sequentially defines sliding surface 404 and support surface 406, forms subsequently bight 410.Two lateral borders of pallet 40 form abutment face 408, and the bottom then has a notch part 416.

Fig. 3 c and Fig. 3 d illustrate respectively three-dimensional structure diagram and the upward view of pallet 42.As shown in the figure, pallet 42 has a plurality of ratchets 432, and it roughly presents the arcuation of definable Radius towards the both sides extension, and ratchet 432 can be covered with a side of pallet 42 continuously, also can only be laid on the partial-length of described side.Pallet 42 forms a dimple 434 at the opposite side with respect to a plurality of ratchets 432, and the system of central authorities of dimple 434 gives prominence to form a spine 422 slightly, and roughly becomes bilateral symmetry take spine 422 as axis.Dimple 434 extends to both sides from spine's 422 beginnings, and sequentially defines sliding surface 424 and support surface 426, forms subsequently bight 430.Two lateral borders of pallet 42 form abutment face 428.

The profile of the profile of the dimple 414 of pallet 40 and the dimple 434 of pallet 42 can be roughly the same.Yet it is poor that the configuration system of the ratchet 412 of pallet 40 and the ratchet 432 of pallet 42 have tooth.For example, the ratchet 412 of pallet 40 is the tooth peak at the axis a by spine 402, and the ratchet 432 of pallet 42 is tooth paddy at the axis b by spine 422, so the configuration of both ratchets has progressive error half.In addition, pallet 40 can be identical with pallet 42 both length of ratchets extension, can also be different.In other words, both ratchet numbers are inevitable be identical number necessarily, or pallet 40 and pallet 42 from the length of axial both sides arcuation extension different.

According to Fig. 1, pallet 42 is overlapped above pallet 40, and is mounted to the annular drive tooth section 242 of the driving head 24 of the driving head assembly 20 in the first compartment 125, and between the center pillar 34 of the direction toggle 30 in the second compartment 127.In other words, the pallet 40 and 42 of installation is to be arranged in the mid portion 129 that is communicated with described the first compartment 125 and the second compartment 127.Fig. 4 a and 4b are after pallet is installed and the structural representation of driving head assembly 20 and direction toggle 30.As shown in the figure, after Wrench head is put in pallet 40 and 42 overlapped installations, dimple 414 and 434 push up respectively press direction toggle 30 support bar 384 and compression elastic piece 382.Therefore, elastic component 382 can apply elastic force and supports bar 384 and dimple 414 and 434 is supported towards the direction of the first compartment 125 (can referring to Fig. 5 a), be made pallet 40 and 42 against annular drive tooth section 242 to supporting bar 384, causing.At this moment, because ratchet 412 and 432 has the poor cause of tooth, pallet 40 and 42 ratchet 412 and 432 one will mesh ring-type driving gear section 242, and another one will be supported annular drive tooth section 242 and not be engaged with.In the shown state of Fig. 4 a and Fig. 4 b, the ratchet 412 engagement ring-type driving gear sections 242 of pallet 40, the ratchet 432 of pallet 42 is then supported annular drive tooth section 242, is not engaged with.Certainly, can also be 432 engagements of ratchet ring-type driving gear section 242 of pallet 42, the ratchet 412 of pallet 40 is supported annular drive tooth section 242 (such as Fig. 5 b).In other words, spanner of the present utility model is put at one time, and pallet 40 and 42 ratchet only have wherein that one can mesh ring-type driving gear section 242.Notch part 416 that it should be noted that pallet 40 just can be corresponding to the base plate 36 of direction toggle 30 after pallet is installed, and when avoiding direction toggle 30 to move between primary importance and the second place, base plate 36 is interfered with producing with pallet 40.

After pallet 40 and 42 was mounted to Wrench head 12, the main structure body of spanner 1 was roughly finished.Can have the depression that the first compartment 125, the second compartment 127 and the mid portion 129 of the shrouding 50 capping Wrench heads 12 of an opening 501 form in respect to 121 surface 123, surface at head 12 this moment, and make the drive end 244 of driving head assembly 20 pass opening 501 to expose.One garter spring 52 is further to be installed on the shrouding 50 and against the sidewall apical margin of the first compartment 125, with fixing shrouding 50.For reducing driving head 242 and the mantle friction of head 12 with shrouding 50, can also put respectively O shape ring 503 and 505 at upper surface and the lower surface of driving head 242.

Because pallet 40 and 42 has the poor cause of tooth, the ratchet spanner 1 that the utility model discloses can have the effect of reduction angle of revolution.Fig. 5 a and 5b are respectively the structural representation of the annular drive tooth section 242 of pallet 40 and pallet 42 engagement driving heads 24.In Fig. 5 a, direction toggle 30 is to be positioned at primary importance, elastic component 382 applies the elastic force pushing tow and supports bar 384, make the support surface 406 of its dimple that leans pallet 40 414 1 sides, and then the face that leans 408 packings that make the pallet 40 that is positioned at homonymy rely on the sidewall 1291 of mid portion 129, this moment pallet 40 ratchet 412 engagement ring-type driving gear sections 242.Another elastic component 382 applies elastic force and supports bar 384 in another again, makes the support surface 426 of a side of the dimple 434 of its pushing tow pallet 42, and then the face that the leans 428 same packings of the pallet 42 that is positioned at homonymy are relied on the sidewall 1291 of mid portion 129.Yet because of the ratchet of the ratchet of pallet 42 and pallet 40 have tooth poor so, the ratchet 432 of pallet 42 does not mesh ring-type driving gear section 242, and pallet 42 slightly staggers with pallet 40.

When the ratchet spanner 1 shown in Fig. 5 a is rotated in a clockwise direction, because of the face that leans 408 of pallet 40 against sidewall 1291, so ratchet 412 continues engagement ring-type driving gear section 242, and drives the rotation of drive end and securing member.Otherwise when ratchet spanner 1 rotated in the counterclockwise direction, annular drive tooth section 242 made pallet 40 and 42 reverse back pressure support bar 384 and elastic component 382 towards the direction pushing tow pallet 40 and 42 of supporting bar 384, pulled back and reach ratchet spanner 1 idle running.

Similarly, in Fig. 5 b, direction toggle 30 also is positioned at primary importance, elastic component 382 applies the elastic force pushing tow and supports bar 384, make the support surface 426 of its dimple that leans pallet 42 434 1 sides, and then the face that leans 428 packings that make the pallet 42 that is positioned at homonymy rely on the sidewall 1291 of mid portion 129, this moment pallet 42 ratchet 432 engagement ring-type driving gear sections 242.Another elastic component 382 applies elastic force and supports bar 384 in another again, makes the support surface 406 of a side dimple 414 of its pushing tow pallet 40, and then the face that the leans 408 same packings of the pallet 40 that is positioned at homonymy are relied on the sidewall 1291 of mid portion 129.Yet because of the ratchet of the ratchet of pallet 40 and pallet 42 have tooth poor so, the ratchet 412 of pallet 40 does not mesh ring-type driving gear section 242, and pallet 40 slightly staggers with pallet 42.

When the ratchet spanner 1 shown in Fig. 5 b is rotated in a clockwise direction, because of the face that leans 428 of pallet 42 against sidewall 1291, so ratchet 432 continues engagement ring-type driving gear section 242, and drives the rotation of securing member.Otherwise when ratchet spanner 1 rotated in the counterclockwise direction, annular drive tooth section 242 made pallet 40 and 42 reverse back pressure support bar 384 and elastic component 382 towards the direction pushing tow pallet 40 and 42 of supporting bar 384, pulled back and reach ratchet spanner 1 idle running.

It should be noted that the poor half tooth distance that can be of tooth of the ratchet of the ratchet of pallet 40 in the present invention and pallet 42.Therefore, when the ratchet spanner among Fig. 5 a idle running pull back half tooth apart from the time, the ratchet 412 of pallet 40 breaks away from annular drive tooth section 242 and no longer meshes it, this moment is because the ratchet of pallet 40 and 42 has progressive error half, so ratchet 432 engagement ring-type driving gear sections 242 of pallet 42, and becoming the state shown in Fig. 5 b, can continue turn Fastener by pallet 42 this moment.In other words, in the process that spanner idle running is pulled back, the half tooth of whenever being separated by just alternately meshes ring-type driving gear section 242 apart from pallet 40 and pallet 42.The advantage of this structure is that compared to the reversing ratchet wrench that only has single pallet, reversing ratchet wrench of the present utility model can effectively be saved the angle that idle running is pulled back.In detail, only has the ratchet spanner of single pallet when idle running is pulled back, must draw the angle of a full tooth pitch that pallet is beated and be engaged to next tooth of annular drive tooth section, and only need the pull back angle of half tooth distance of ratchet spanner of the present utility model can make pallet beat to be engaged to next tooth of annular drive tooth section.For example, when annular drive tooth section have 60 tooth the time, the ratchet spanner of single pallet 6 that must pull back just can skip a tooth of annular drive tooth section, 3 just can skip a tooth of annular drive tooth section and spanner of the present utility model only need be pulled back.Therefore, its effect of structure of the present utility model is equal under the single pallet spanner structure, and annular drive tooth section has the effect of 120 teeth.Spanner of the present utility model is pulled back and meshed the required angle of ring-type driving gear section is 1/2nd of single pallet structure, so can effectively promote operating efficiency.Structure of the present utility model is because saving the stroke that dallies and pull back, so be beneficial to especially use when the wrench operated narrow space in addition.

Fig. 6 a and 6b are respectively the spanner structure schematic diagram that the utility model direction toggle 30 is positioned at primary importance and the second place.In Fig. 6 a, direction toggle 30 in primary importance pushes against pallet 40 and 42 to first side in mid portion 129 and the second compartment 127 formed spaces, and ratchet spanner 1 can rotate clockwise and by pallet 40 or 42 carry-over moments with turn Fastener, and can be rotated counterclockwise and reaching idle running and pull back.If wish changes the direction of operating of spanner 1, as long as direction driving lever 38 is toggled it to the second place shown in Fig. 6 b, can make pallets 40 and 42 in the head 12 of ratchet spanner 1 move laterally to the position shown in Fig. 6 b (ascending the throne in one second side with respect to first side in mid portion 129 and the second compartment 127 formed spaces), make spanner 1 can be around counterclockwise rotation and by pallet 40 or 42 carry-over moments with turn Fastener, and can turn clockwise and reaching idle running and pull back.In detail, when direction toggle 30 is positioned at primary importance, support the support surface 406 of bar 384 difference pushing tow pallets 40 and the support surface 426 of pallet 42, make the face that leans 428 of the face that leans 408 of pallet 40 1 sides and pallet 42 homonymies lean the inwall 1291 (for ease of illustrating and understand, the support surface 426 of pallet 42 and lean face 428 and do not mark in Fig. 6 a) of the mid portion 129 of head 12.This moment, pallet 40 and pallet 42 inside contracted space 342 with respect to what the bight 410 and 430 of inwall 1291 was arranged in center pillar 34.When direction toggle 30 toggles it to the second place by primary importance, support bar 384 respectively from the support surface 406 and 426 of pallet 40 and pallet 42 1 sides, wall edge along dimple 414 and 434 slides past sliding surface 404 and 424, spine 402 and 422, again through the sliding surface 404 of pallet 40 and pallet 42 opposite sides and 424 and arrive the support surface 406 and 426 (shown in Fig. 6 b) of opposite side.Supporting bar 384 in the sliding process of the dimple of pallet, pallet 40 and 42 simultaneously from the position shown in Fig. 6 a mid portion 129, be moved to position shown in Fig. 6 b along annular drive tooth section 242 lateral slidings, finally make the face that leans 408 and 428 of pallet 40 and 42 opposite sides lean mid portion 129 with respect to the inwall 1292 of inwall 1291, and finish the commutation action of ratchet spanner 1.In Fig. 6 b, what pallet 40 and 42 bights 410 and 430 with respect to inwall 1292 were arranged in center pillar 34 inside contracts space 342.Because pallet 40 and 42 spine 402 and 422, be respectively in the slightly projection of central authorities of dimple 414 and 434, therefore support bar 384 and sliding into spine 402 and at 422 o'clock, direction toggle 30 to stir resistance bigger, and can obtain a clear and definite commutation feel.In addition, in the moving process of direction toggle 30, the ratchet 412 of pallet 40 still continues engagement with the displacement of the ratchet 432 of pallet 42 or supports the annular drive tooth section of driving head 20, does not occur so do not have the situation of slippage.

It should be noted that, because the second compartment 127 of Wrench head 12 of the present utility model is near supporting bar 133 by the elastic force of elastic component 138 on the interior sidewall surface of a side of levers 10, at any time all lean direction toggle 30 center pillar 34 rear surface 346 and apply one against power, but the guarantor supports bar 384 with pallet 40 and 42 engagements or against the annular drive tooth section 242 of driving head 24 to toggle 30, and can be when static or slippage during operation.Therefore, structure of the present utility model can be avoided known ratchet spanner after long-time the use, during commutation or moment ratchet and the engagement of annular drive tooth section or slippage of supporting when operating energetically, so the possibility that can avoid ratchet spanner to damage, and then promote the security that operates.

Specific embodiment of the utility model system illustrates that as above only the skill person of this area is when making any modification and retouching to the utility model not breaking away under the spirit of the present utility model, and so these modifications and retouching ought still belong to the scope that the utility model defines.

Claims (10)

1. a reversing ratchet wrench is characterized in that, comprises:

One lever;

One head, described head define one first compartment and one second compartment, and described the first compartment and the second compartment interconnect by a mid portion;

One driving head comprises the annular drive tooth section and the drive end that are placed in described the first compartment;

One direction toggle is placed in described the second compartment, and described direction toggle can move between a primary importance and a second place;

One first pallet and one second pallet, have respectively to mesh a plurality of ratchets of described annular drive tooth, described the first pallet and the second pallet are stacked being placed in the described mid portion, and described direction toggle forces described the first pallet and the second pallet to support or mesh described annular drive tooth section;

It is poor that wherein said the first pallet and described the second pallet have tooth, makes the one of described the first pallet and described the second pallet mesh described annular drive tooth section and another one against described annular drive tooth section;

Wherein when described direction toggle is positioned at described primary importance, described direction toggle flexibly forces described the first pallet and described the second pallet to be positioned at a side of the inwall of described mid portion against described head, described spanner can be dallied along a first direction, when described direction toggle is positioned at the described second place, described direction toggle flexibly forces described the first pallet and the second pallet to be positioned at the inwall of described mid portion with respect to the opposite side of described side against described head, and described spanner can be dallied along a second direction.

2. reversing ratchet wrench according to claim 1, it is characterized in that, further comprising one first supports bar and one second and supports bar, described first supports bar and second supports an end of bar and is placed in the groove of described direction toggle by one first elastic component and the second elastic component respectively, and described first supports bar and second supports the other end of bar and support respectively described the first pallet and described the second pallet.

3. reversing ratchet wrench according to claim 2, it is characterized in that, wherein said the second compartment has a blind hole near the inwall of described lever side, one the 3rd supports bar is inserted in the described blind hole by one the 3rd elastic component, and the described the 3rd supports the rear surface that bar is flexibly supported described direction toggle.

4. according to claim 1 to 3 each described reversing ratchet wrench, it is characterized in that, wherein said the first pallet has a dimple, two relative sliding surfaces that described dimple defines a central spine, extend from described central spine, and from two relative support surfaces of described two relative sliding surfaces extensions.

5. reversing ratchet wrench according to claim 4 is characterized in that, the bottom of wherein said the first pallet has a notch part.

6. reversing ratchet wrench according to claim 4, it is characterized in that, wherein said the second pallet has a dimple, two relative sliding surfaces that described recess defines a central spine, extend from described central spine, and from two relative support surfaces of described two relative sliding surfaces extensions.

7. reversing ratchet wrench according to claim 5 is characterized in that, first of wherein said direction toggle is supported the dimple that bar is supported described the first pallet.

8. reversing ratchet wrench according to claim 6 is characterized in that, second of wherein said direction toggle is supported the dimple that bar is supported described the second pallet.

9. according to claim 1 to 3 each described reversing ratchet wrench, it is characterized in that, the tooth of the ratchet of the ratchet of wherein said the first pallet and described the second pallet is poor to be the half tooth distance, when the idle running of described spanner was pulled back, the ratchet of the ratchet of described the first pallet and described the second pallet alternately meshed described annular drive tooth section.

10. according to claim 1 to 3 each described reversing ratchet wrench, it is characterized in that wherein said drive end is a drive hole that is formed in the described annular drive tooth section.

Images