CN103372834A

CN103372834A - Ratchet wrench

Info

Publication number: CN103372834A
Application number: CN2012101054550A
Authority: CN
Inventors: 杨月英
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-11
Filing date: 2012-04-11
Publication date: 2013-10-30
Anticipated expiration: 2032-04-11
Also published as: CN103372834B

Abstract

The invention provides a ratchet wrench which mainly comprises a wrench body. A driving wheel and a driven wheel which are meshed with each other are arranged in the wrench body, ratchets are arranged on the inner wall surface of a carrying groove of the wrench body, wheel teeth of the driving wheel are meshed with wheel teeth of the driven wheel, the wheel teeth of the driving wheel and the wheel teeth of the driven wheel are spirally arranged, ratchets are arranged on the various wheel teeth of the driven wheel and are clamped with the ratchets on the inner wall surface of the carrying groove, a linkage part is arranged in a through hole of the driven wheel, one end of the linkage part is connected with a shifting part arranged on the outer side of the wrench body, the other end of the linkage part is positioned on a cover plate, an ejecting block is arranged on the linkage part and is disposed in the through hole of the driven wheel, and a spring is positioned between the ejecting block and the linkage part. The ratchet wrench has the advantages that the rotation direction of the driving wheel can be conveniently changed by the aid of switching action of the shifting part, and the optimal clamping braking effect can be realized.

Description

Ratchet spanner

Technical field

The present invention refers to a kind of switching by shifting part especially relevant for a kind of ratchet spanner, can conveniently change the direction of rotation of driving wheel, can reach the effect of best clip braking, and has the ratchet spanner of stability during transmission.

Background technology

Be generally the locking and the dismounting that cooperate different types of bolt or nut, mostly be to rely on ratchet spanner to cooperate different sleeves to use, and general ratchet spanner 1, see also shown in Figure 1, mainly be provided with a wrench body 10, this wrench body 10 is provided with a storage tank 100 and a bearing groove 101, this storage tank 100 is provided with an open-work 102, this bearing groove 101 is provided with a control delthyrium 103, the wall of this bearing groove 101 is provided with a shrinkage pool 104, one driving wheel 11 is located in the storage tank 100 of this wrench body 10, one adjustment block 12 is located in the bearing groove 101 of this wrench body 10, the gear teeth 110 on this driving wheel 11 are intermeshing with the teeth 120 of this adjustment block 12, this driving wheel 11 is provided with telescoping column 111, and the middle part of the opposite side of this adjustment block 12 is provided with convex body 121, the both sides of this convex body 121 are formed with cancave cambered surface 122, locate steel ball 13 and a spring 14 and be provided with one in the shrinkage pool 104 of this wrench body 10, this positioning ball 13 supports to be located on the wherein cancave cambered surface 122 of this adjustment block 12, one control handle 15 is located on the lateral surface of this wrench body 10, this control handle 15 also is connected with adjustment block 12 by an axostylus axostyle 16, one catch 17 is covered on this wrench body 10, rely on bolting element 18 that this catch 17 is fixedly arranged on this wrench body 10, this catch 17 is provided with the sleeve hole 170 that the telescoping column 111 for driving wheel 11 wears, reach a shaft lever hole 171 that supplies axostylus axostyle 16 to wear, so, come interlock adjustment block 12 to rotate to stir control handle 15, one end of adjustment block 12 is transferred on the side wall surface of the bearing groove 101 that is posted by wrench body 10, rely on the braking that supports of adjustment block 12, to reach the single-direction transmission of driving wheel 11, yet, the driving wheel 11 of general ratchet spanner 1 and the teeth 120 of adjustment block 12 contacting for point or line when meshing, engaged transmission that can't be stable, so have the jumping tooth, the untrue situation of transmission produces, and the braking of 12 pairs of driving wheels 11 of adjustment block, only rely on the wall of adjustment block 12 and the wall of bearing groove 101 mutually to support clip, but its wall is even surface, its frictional force is little, so clip poor effect, easily there is the phenomenon of slippage to occur, can't really reaches the effect of clip braking; Edge this, the inventor so concentrate on studies, improve, is initiated out the present invention because existing ratchet spanner has disappearance described above then.

Summary of the invention

Main purpose of the present invention is to provide a kind of ratchet spanner, switching driving wheel rotation direction that can be stable, and can reach best clip braking effect, and have stability during transmission.

Ratchet spanner of the present invention, mainly be provided with a wrench body, one side of the working end of this wrench body is provided with concave surface, be provided with a storage tank and a bearing groove in this concave surface, this storage tank is connected with the bearing groove, the another side of this working end is provided with a break-through in the open-work of this storage tank, and the outside of this wrench body is provided with shifting part; One driving wheel is located in the storage tank of this wrench body, and this driving wheel is provided with the gear teeth, and a side of this driving wheel is provided with positioning convex body, and this positioning convex body is arranged in the open-work of this wrench body, and the opposite side of this driving wheel is provided with sleeve extension rod; One driven pulley is located in the bearing groove of this wrench body, and this driven pulley is provided with the gear teeth, and the gear teeth of this driven pulley are meshed with the gear teeth of this driving wheel; One cover plate is covered on the concave surface of this wrench body, and this cover plate is provided with an open-work that wears for the sleeve extension rod of this driving wheel;

Wherein: the internal face of the bearing groove of this wrench body is provided with ratchet, each gear teeth of this driven pulley are provided with ratchet, ratchet on ratchet on this driven pulley and this bearing groove internal face holds mutually, the gear teeth of this driving wheel arrange in the shape of a spiral, and the gear teeth of this driven pulley cooperate the gear teeth of this driving wheel also to arrange in the shape of a spiral, this driven pulley is provided with a perforation, one moving part is located in the perforation of this driven pulley, one end of this moving part is connected with the shifting part of being located at this wrench body outside, the other end of this moving part is positioned on this cover plate, this moving part is provided with perforation, one holds piece is located on this moving part, and establish in the perforation of this driven pulley, this holds piece and is provided with one for the projection in the perforation that is arranged in this moving part, one spring housing is located on this projection that holds piece, and this spring holds between piece and this moving part at this.

Described ratchet spanner, wherein, position corresponding to this bearing groove on the another side of the working end of this wrench body is provided with a groove, concave surface in this wrench body is provided with the perforation that several are communicated to this groove, one side of this moving part is provided with a location convex body, the opposite side of this moving part is provided with a location projection, in the groove of this wrench body, be provided with a catch, this catch is provided with an open-work that wears for the positioning convex body of moving part, be provided with screw corresponding to the punch position on the groove of this wrench body on this catch, this shifting part is located on the lateral surface of this catch, this shifting part is provided with a perforation, be equipped with an affixed element in the perforation of this shifting part, this affixed element is arranged on the positioning convex body of this moving part, and this cover plate is provided with the positional punch that a positioning convex column for this moving part opposite side wears the location, be provided with perforation corresponding to the punch position on the concave surface of this wrench body on this cover plate, rely on bolting element to be arranged in the perforation of this cover plate and this wrench body, and spiral shell is located in the screw of this catch.

The invention has the beneficial effects as follows: by means of the ratchet on the gear teeth of driven pulley and the mutual snap-in location of ratchet on the bearing trough wall surface, can really reach the effect of clip braking, do not have the situation generation that slippage can't be braked, and the gear teeth of driving wheel and the gear teeth of driven pulley are arranged in the shape of a spiral, intermeshing contact area is strengthened, make interlock and transmission more stable really, do not jump tooth, the untrue situation generation of transmission so do not have.

Description of drawings

Figure 1 shows that the three-dimensional exploded view of existing ratchet spanner;

Figure 2 shows that the three-dimensional exploded view of the embodiment of the invention;

Figure 3 shows that the three-dimensional combination figure of the embodiment of the invention;

Figure 4 shows that the three-dimensional combination figure of another angle of the embodiment of the invention;

Figure 5 shows that the schematic diagram of embodiment of the invention switching driving wheel clip braking direction;

Figure 6 shows that the schematic diagram of embodiment of the invention idling conditions;

Figure 7 shows that another clip braking schematic diagram that turns to of embodiment of the invention switching driving wheel.

Description of reference numerals: 1-ratchet spanner; The 10-wrench body; The 100-storage tank; 101-bearing groove; The 102-open-work; 103-controls delthyrium; The 104-shrinkage pool; The 11-driving wheel; The 110-gear teeth; The 111-telescoping column; The 12-adjustment block; The 120-teeth; The 121-convex body; The 122-cancave cambered surface; The 13-positioning ball; The 14-spring; The 15-control handle; The 16-axostylus axostyle; The 17-catch; The 170-sleeve hole; The 171-shaft lever hole; The 18-bolting element; The 2-wrench body; The 20-working end; The 21-concave surface; The 210-perforation; The 22-storage tank; The 220-open-work; 23-bearing groove; The 230-groove; The 231-ratchet; The 3-driving wheel; The 30-gear teeth; The 31-positioning convex body; The 32-sleeve extension rod; The 4-driven pulley; The 40-gear teeth; The 41-ratchet; The 42-perforation; The 43-moving part; The 430-perforation; The 431-positioning convex body; The 432-positioning convex column; 44-holds piece; The 440-projection; The 45-spring; The 5-catch; The 50-open-work; The 51-screw; The 52-shifting part; The 520-perforation; The affixed element of 53-; The 6-cover plate; The 60-open-work; The 61-positional punch; The 62-perforation; The 63-bolting element.

The specific embodiment

About the present invention reaches above-mentioned application target and effect, the technological means that adopts is enumerated better feasible embodiment hereby, and cooperates shown in the accompanying drawing, and details are as follows:

Embodiments of the invention, see also Fig. 2～shown in Figure 5, mainly be provided with a wrench body 2, one side of the working end 20 of this wrench body 2 is provided with concave surface 21, be provided with a storage tank 22 and a bearing groove 23 in this concave surface 21, this storage tank 22 is connected with bearing groove 23, the another side of this working end 20 is provided with a break-through in the open-work 220 of this storage tank 22, position corresponding to this bearing groove 23 on the another side of this working end 20 is provided with a groove 230, be provided with several perforation 210 in this concave surface 21 and be communicated to this groove 230, relative both sides respectively are provided with several ratchets 231 on the internal face of this bearing groove 23; One driving wheel 3 is located in the storage tank 22 of this wrench body 2, and the gear teeth 30 of this driving wheel 3 arrange in the shape of a spiral, and a side of this driving wheel 3 is provided with positioning convex body 31, and opposite side is provided with sleeve extension rod 32; One driven pulley 4, be located in the bearing groove 23 of this wrench body 2, the gear teeth 40 of this driven pulley 4 are meshed with the gear teeth 30 of this driving wheel 3, the gear teeth 40 of this driven pulley 4 cooperate the gear teeth 30 of this driving wheel 3 also to arrange in the shape of a spiral, be equipped with several ratchets 41 on each gear teeth 40 of this driven pulley 4, this driven pulley 4 is provided with a perforation 42, one moving part 43 is located in this perforation 42, this moving part 43 is provided with perforation 430, one side of this moving part 43 is provided with a location convex body 431, opposite side is provided with a location projection 432, one holds piece 44 is located on this moving part 43, and establishes in the perforation 42 of this driven pulley 4, and this holds piece 44 and is provided with a projection 440, one spring 45 is sheathed on this projection 440, and holds between piece 44 and this moving part 43 at this; One catch 5, be located on the groove 230 of this wrench body 2, this catch 5 is provided with an open-work 50, be provided with screw 51 corresponding to perforation 210 positions on the groove 230 of this wrench body 2 on this catch 5, the lateral surface of this catch 5 is provided with a shifting part 52, this shifting part 52 is provided with a perforation 520, is equipped with an affixed element 53 in this perforation 520, and this affixed element 53 is arranged on the positioning convex body 431 of these moving part 43 1 sides; One cover plate 6, be covered on the concave surface 21 of this wrench body 2, this cover plate 6 is provided with an open-work 60, be provided with in addition a positional punch 61 that wears for the positioning convex column 432 of this moving part 43 on this cover plate 6, be provided with perforation 62 corresponding to perforation 210 positions on the concave surface 21 of this wrench body 2 on this cover plate 6, be equipped with bolting element 63 in this perforation 62, so, be the structure of a ratchet spanner.

During assembling, see also Fig. 2～shown in Figure 5, positioning convex body 431 with these moving part 43 1 sides is arranged in the open-work 50 of this catch 5 first, rely on affixed element 53 shifting part 52 to be fixedly arranged on the positioning convex body 431 of this moving part 43, make this shifting part 52 be located at the outside of this catch 5, this catch 5 is located on the groove 230 of this wrench body 2, spring 45 is sheathed on this projection that holds piece 44 440 again, this projection 440 is arranged in the perforation 430 of this moving part 43, make moving part 43, holding piece 44 is located in the bearing groove 23 of wrench body 2 with spring 45, again this driven pulley 4 is established in the bearing groove 23 of this wrench body 2, and make this moving part 43, hold in the perforation 42 that piece 44 and spring 45 be placed in driven pulley 4 in the lump, in addition driving wheel 3 is placed in the storage tank 22 of wrench body 2, make the gear teeth 40 of driven pulley 4 intermeshing with the gear teeth 30 of driving wheel 3, the screw 51 of this catch 5 then is aligned with the perforation 210 of this wrench body 2, again cover plate 6 is covered on the concave surface 21 of this wrench body 2, storage tank 22 32 interior of the sleeve extension rods of being located at wrench body 2 are extended through the open-work 60 of this cover plate 6, the positioning convex column 432 of the moving part 43 in the perforation 42 of this driven pulley 4 then is arranged in the positional punch 61 of this cover plate 6, again bolting element 63 is arranged in the perforation 210 of the perforation 62 of this cover plate 6 and wrench body 2, and spiral shell is located in the screw 51 of catch 5, driving wheel 3 and driven pulley 4 and internals thereof are fixedly arranged in the storage tank 22 and bearing groove 23 of wrench body 2, so, can finish whole assembling.

During use, see also Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, switch shifting part 52 with the direction that wrench body 2 wishs are rotated, when the clockwise application of force rotation of wrench body 2 wishs is used, only shifting part 52 must be pulled clockwise direction to the rotation of 2 wishs of wrench body (such as Fig. 4, shown in Figure 5), 52 of this shifting parts drive moving part 43 rotations, 43 drives of moving part hold piece 44 in the perforation 42 interior rotations of driven pulley 4, this holds the elasticity pushing tow that piece 44 is subjected to spring 45, and drive driven pulley 4 in bearing groove 23 internal shifts of wrench body 2, the elasticity pushing tow that relies on spring 45, this driven pulley 4 moves up and reclines (as shown in Figure 5) with the internal face on bearing groove 23 tops of

wrench body

2,41 ratchets 231 with bearing groove 23 upper inside wall faces of ratchet on the gear teeth 40 of this driven pulley 4 hold mutually, one space is then formed at the bottom of this bearing groove 23, and when wrench body 2 clockwise rotates use, 30 gear teeth 40 that oppositely promote driven pulley 4 of the gear teeth of this driving wheel 3,4 direction of rotation with wrench body 2 of this driven pulley are identical to be turn clockwise (as shown in Figure 5), ratchet 41 on the driven pulley 4 then closely is fastened in the ratchet 231 on the bearing groove 23, form the clip on-position, driving wheel 3 can't be rotated, and make sleeve barrel tool (not shown) on the sleeve extension rod 32 that is socketed on this driving wheel 3 be able to the action that the elements such as nut or bolt are disassembled or locked, and stir clockwise and be positioned at lower pan position when shifting part 52, and this wrench body 2 is when oppositely rotating counterclockwise, 3 of this driving wheels can be passed (as shown in Figure 6) to the position in tool space, bearing groove 23 bottom slightly with driven pulley 4, make on the gear teeth 40 of this driven pulley 4 ratchet 41 not can with bearing groove 23 walls on ratchet 231 mutually lock, this driven pulley 4 then is able to by driving wheel 3 driven rotary, forms idling conditions; In addition, when wrench body 2 will oppositely be counterclockwise application of force rotation use, only must switch shifting part 52, shifting part 52 is upwards dialed to the direction of 2 wish rotations of wrench body counterclockwise (such as Fig. 4, shown in Figure 7), 52 of this shifting parts drive moving part 43 and are rotated counterclockwise, 43 drives of moving part hold piece 44 in the perforation 42 interior rotations of driven pulley 4, this holds the elasticity pushing tow that piece 44 is subjected to spring 45, and it is interior to lower displacement in the bearing groove 23 of wrench body 2 to drive driven pulley 4, one space is then formed at the top of this bearing groove 23, the elasticity pushing tow that relies on spring 45, driven pulley 4 is moved down and recline (as shown in Figure 7) with the internal face of bearing groove 23 bottoms of wrench body 2, when wrench body 2 rotates counterclockwise use, the turn clockwise gear teeth 40 that promote driven pulley 4 of 30 on the gear teeth of this driving wheel 3 are and rotate counterclockwise, ratchet 41 on the driven pulley 4 then closely is fastened in the ratchet 231 of bearing groove 23 bottoms, and formation clip on-position, driving wheel 3 can't be rotated, be able to action that the elements such as nut or bolt are disassembled or locked and be socketed on sleeve barrel tool (not shown) on the sleeve extension rod 32 of this driving wheel 3, be positioned at superior displacement and put and stir counterclockwise when shifting part 52, when wrench body 2 clockwise rotates, 3 of this driving wheels can be passed driven pulley 4 slightly to the position in tool space, bearing groove 23 top, make on the gear teeth 40 of this driven pulley 4 ratchet 41 not can with bearing groove 23 walls on ratchet 231 mutually lock, this driven pulley 4 then is able to by driving wheel 3 driven rotary, form idling conditions, so, by means of the ratchet 41 on the gear teeth 40 of driven pulley 4 and the ratchet 231 mutual snap-in location on bearing groove 23 walls, can really reach the effect of clip braking, do not have the situation generation that slippage can't be braked, and the gear teeth 30 of driving wheel 3 and the gear teeth 40 of driven pulley 4 are arranged in the shape of a spiral, intermeshing contact area is strengthened, make interlock and transmission more stable really, so do not have the jumping tooth, the untrue situation of transmission produces.

In sum, the present invention has reached desired application target and effect really, and more desirable, practical for it than prior art, yet, above-described embodiment only is specifically described for preferred embodiment of the present invention, this embodiment limits claim of the present invention, and other does not break away from the equalization finished under the disclosed technological means and changes and modify such as, all should be contained in the claim that the present invention contains.

Claims

1. ratchet spanner, be provided with a wrench body, one side of the working end of this wrench body is provided with concave surface, be provided with a storage tank and a bearing groove in this concave surface, this storage tank is connected with the bearing groove, the another side of this working end is provided with a break-through in the open-work of this storage tank, and the outside of this wrench body is provided with shifting part; One driving wheel is located in the storage tank of this wrench body, and this driving wheel is provided with the gear teeth, and a side of this driving wheel is provided with positioning convex body, and this positioning convex body is arranged in the open-work of this wrench body, and the opposite side of this driving wheel is provided with sleeve extension rod; One driven pulley is located in the bearing groove of this wrench body, and this driven pulley is provided with the gear teeth, and the gear teeth of this driven pulley are meshed with the gear teeth of this driving wheel; One cover plate is covered on the concave surface of this wrench body, and this cover plate is provided with an open-work that wears for the sleeve extension rod of this driving wheel;

It is characterized in that: the internal face of the bearing groove of this wrench body is provided with ratchet, each gear teeth of this driven pulley are provided with ratchet, ratchet on ratchet on this driven pulley and this bearing groove internal face holds mutually, the gear teeth of this driving wheel arrange in the shape of a spiral, and the gear teeth of this driven pulley cooperate the gear teeth of this driving wheel also to arrange in the shape of a spiral, this driven pulley is provided with a perforation, one moving part is located in the perforation of this driven pulley, one end of this moving part is connected with the shifting part of being located at this wrench body outside, the other end of this moving part is positioned on this cover plate, this moving part is provided with perforation, one holds piece is located on this moving part, and establish in the perforation of this driven pulley, this holds piece and is provided with one for the projection in the perforation that is arranged in this moving part, one spring housing is located on this projection that holds piece, and this spring holds between piece and this moving part at this.

2. ratchet spanner as claimed in claim 1, it is characterized in that: the position corresponding to this bearing groove on the another side of the working end of this wrench body is provided with a groove, concave surface in this wrench body is provided with the perforation that several are communicated to this groove, one side of this moving part is provided with a location convex body, the opposite side of this moving part is provided with a location projection, in the groove of this wrench body, be provided with a catch, this catch is provided with an open-work that wears for the positioning convex body of moving part, be provided with screw corresponding to the punch position on the groove of this wrench body on this catch, this shifting part is located on the lateral surface of this catch, this shifting part is provided with a perforation, be equipped with an affixed element in the perforation of this shifting part, this affixed element is arranged on the positioning convex body of this moving part, and this cover plate is provided with the positional punch that a positioning convex column for this moving part opposite side wears the location, be provided with perforation corresponding to the punch position on the concave surface of this wrench body on this cover plate, rely on bolting element to be arranged in the perforation of this cover plate and this wrench body, and spiral shell is located in the screw of this catch.