CN1214899C

CN1214899C - Improved ratchet ring spanner

Info

Publication number: CN1214899C
Application number: CN 01123441
Authority: CN
Inventors: 魏宏因
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-25
Filing date: 2001-07-25
Publication date: 2005-08-17
Anticipated expiration: 2021-07-25
Also published as: CN1398701A

Abstract

The present invention relates to an improve ratchet ring spanner which is provided with a handle, wherein at least one end of the handle is provided with a head, the head is provided with a slot used for setting a ratchet wheel, a containing slot used for setting a ratchet block is arranged between the handle and the head, and the ratchet block is bunted and supported by an elastic piece, and is engaged with the ratchet wheel at normality; an interval is arranged between the central position of the head and the centerline of the handle, and a convex part is formed on the central position of the head positioned at one side of the centerline of the handle. The present invention has the efficacy that the driving direction of a one-way ratchet wheel mechanism is easy to identify, and enables the ratchet wheel mechanism to bear large torque force.

Description

Improved double offset ring spanner with ratchet

One, technical field:

The present invention relates to a kind of hand-operated tools, relate in particular to a kind of improved double offset ring spanner with ratchet.

Two, background technology:

As shown in Figure 5, for commonly using the single direction ratchet double offset ring spanner, has a head 82 on the handle 81 of this spanner 8, this head 82 is provided with for a unidirectional ratchet mechanism 9, the center of this head 82 is to be positioned on the center line of this handle 81, this handle 81 has a storage tank 83, is provided with wherein for the ratchet piece 91 with ratchet mechanism 9.

The above-mentioned single direction ratchet double offset ring spanner of commonly using, because can only the unidirectional drive ratchet, therefore, can on handle 81 or head 82, scribe arrow usually to indicate its driving direction.Yet, if at light than the dark place, just the user can't see this sign arrow clearly, and have no way of differentiating the driving direction of single direction ratchet mechanism 9, cause the inconvenience in the use.

Moreover, the size of the ratchet piece 91 of above-mentioned ratchet mechanism 9 be the width W that is subjected to storage tank 83 ' restriction, the size of this storage tank 83 then is subject to the width of this handle 81 and can't strengthens arbitrarily, the torsion that ratchet piece 91 be can bear can't improve.If strengthen the width of storage tank 83 rashly, then can influence the intensity of this handle 81.

Three, summary of the invention:

For the problems referred to above that the single direction ratchet double offset ring spanner exists are commonly used in solution, main purpose of the present invention is, a kind of improved double offset ring spanner with ratchet is provided, because the center of the head of confession ratchet mechanism setting and the centreline space of handle have a spacing, make this head lateral deviation protrude from a side of handle and form a protuberance, this protuberance becomes for the user discerns the obvious sign of the driving direction of single direction ratchet mechanism, and reaches the effect that is easy to identification single direction ratchet mechanism driving direction; Moreover, owing to form the linkage section of a broad between this protuberance and handle, can strengthen the width of storage tank, the width of the ratchet piece of ratchet mechanism can be strengthened, the number of teeth and area with the ratchet engaged that increases ratchet piece and ratchet mechanism make this ratchet mechanism can bear bigger torsion.

The objective of the invention is to realize by following technical scheme.

A kind of improved double offset ring spanner with ratchet, has a handle, at least one end of this handle has a head, this head has a groove for a ratchet is set, and has a storage tank between this handle and this head for a ratchet piece is set, this ratchet piece is pushed by an elastic component, with this ratchet piece and ratchet engaged of pushing and pressing under normality; It is characterized in that the center of described head and the centreline space of handle have a spacing, make this head lateral deviation protrude from a side of this handle and form a protuberance, roughly be flat part between an other side of this head and handle.

Aforesaid improved double offset ring spanner with ratchet wherein forms the linkage section of a broad between the protuberance of head and this handle, described storage tank is located at this linkage section.

Aforesaid improved double offset ring spanner with ratchet, wherein the handle two ends have a head respectively, and each head is different sizes, and the protuberance of this two head lays respectively at not homonymy.

Aforesaid improved double offset ring spanner with ratchet, wherein storage tank has an orthogonal side and a bottom surface, this side is positioned at a side of the contiguous described first side of storage tank, and this bottom surface abuts against slippage thereon for this ratchet piece, and this side and ratchet interblock are provided with an elastic component.

The present invention has the effect that is easy to identification single direction ratchet mechanism driving direction; And owing to form the linkage section of a broad between this protuberance and handle, can strengthen the width of storage tank, the width of the ratchet piece of ratchet mechanism can be strengthened, and the number of teeth and area with the ratchet engaged that increases ratchet piece and ratchet mechanism make this ratchet mechanism can bear bigger torsion.

Four, description of drawings:

Fig. 1 is a stereoscopic schematic diagram of the present invention.

Fig. 2 is planar appearance figure of the present invention.

Fig. 3 is the schematic diagram of handle of the present invention, head and storage tank position relation.

Fig. 4 is the stereoscopic schematic diagram of second embodiment of the invention.

Fig. 5 is a structural representation of commonly using the single direction ratchet double offset ring spanner.

Five, the specific embodiment:

See also Fig. 1 to Fig. 3, the present invention has a handle 1, and this handle 1 has a first side 101 and a second side 102, and this handle 1 also has a head 11, and this head 11 has a groove 113 for a ratchet 21 is set.11 on this handle 1 and head have a storage tank 12 and are provided with for a ratchet piece 22, and this storage tank 12 has an orthogonal side 121 and a bottom surface 122, and this side 121 is positioned at a side of these storage tank 12 contiguous these first sides 101.This bottom surface 122 abuts against slippage thereon for ratchet piece 22, and this side 121 is provided with a spring 23 with 22 of this ratchet pieces, with Yu Changzhuan down this ratchet piece 22 of pushing and pressing mesh with ratchet 21.Has a spacing A between the central point B of this head 11 and the center line C of handle 1, make these head 11 lateral deviations protrude from the second side 102 of this handle 1 and form a protuberance 111,101 of head 11 and first sides generally are a

flat part

112, and 102 linkage sections 13 that form a broad in the second side of the protuberance 111 of this head 11 and this handle 1.And aforesaid storage tank 12 is located at this linkage section 13.

Owing to have a spacing A between the central point B of this head 11 and the center line C of handle 1, make this head 11 and first of this handle 1, dual side-edge 101,102 are respectively equipped with flat part 112 and protuberance 111, no matter in vision or sense of touch, the as easy as rolling off a log difference that identifies flat part 112 and protuberance 111 of user, and the direction that this protuberance 111 protrudes is meshed by spring 23 pushing and pressing and ratchet 21 for this ratchet piece 22 direction, that is during a side of this handle 1 rotation direction flat part 112, be clockwise direction shown in Figure 2, this ratchet piece 22 just can drive ratchet 21 with ratchet 21 engagements and rotate, like this, the user is as long as take aim at the driving direction that the outward appearance of a lower ejector lever just can be differentiated this ratchet 21 a little, even in the dark, the user still can judge the driving direction of this ratchet 21 fully easily by sense of touch.The present invention is for for (as: earthquake, typhoon, floods etc.) in the disaster carry out the user of rescue work, and it can bring into play significant effect.

See also Fig. 3 again, because the protuberance 111 of this head 11 is second sides 102 that lateral deviation protrudes from this handle 1, make 102 linkage sections 13 that form a broad in second side of this protuberance 111 and this handle 1, like this, the width W of being located at the storage tank 12 in this linkage section 13 just can strengthen, that is the width of this ratchet piece 22 can strengthen, this ratchet piece 22 can be increased relatively with the field of conjugate action and the engaging tooth number average of ratchet 21, and then make this ratchet 21 can bear bigger torsion.

In sum, the present invention is by the second side 102 that head 11 is offset to this handle 1, make 1 of this head 11 and this handle form the linkage section 13 of protuberance 111, flat part 112 and broad respectively, this protuberance 111, flat part 112 are available for users to be easy to differentiate the driving direction of this ratchet 21, should broad linkage section 13 be widened by storage tank located therein 12, for the ratchet piece 22 that broad is set, this ratchet piece 22 and the field of conjugate action and the engaging tooth number average of ratchet 21 can be increased, and then make this ratchet 21 can bear bigger torsion.

Certainly, still there are many examples in the present invention, therebetween the only variation on the details.See also shown in Figure 4, it is the second embodiment of the present invention, wherein, these handle 3 two ends have a head 31,32 respectively, each head 31,32 is different sizes, be provided with for different size ratchet 41,42, and the protuberance 311,321 of this two head 31,32 lays respectively at not homonymy, whereby, also can reach identical effect with aforementioned first embodiment.

The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of improved double offset ring spanner with ratchet, has a handle, at least one end of this handle has a head, this head has a groove for a ratchet is set, and has a storage tank between this handle and this head for a ratchet piece is set, this ratchet piece is pushed by an elastic component, with this ratchet piece and ratchet engaged of pushing and pressing under normality;

It is characterized in that the center of described head and the centreline space of handle have a spacing, make this head lateral deviation protrude from a side of this handle and form a protuberance, roughly be flat part between an other side of this head and handle.

2, improved double offset ring spanner with ratchet according to claim 1 is characterized in that forming between the protuberance of described head and this handle the linkage section of a broad, and described storage tank is located at this linkage section.

3, improved double offset ring spanner with ratchet according to claim 1 is characterized in that described handle two ends have a head respectively, and each head is different sizes, and the protuberance of this two head lays respectively at not homonymy.

4, improved double offset ring spanner with ratchet according to claim 1, it is characterized in that above-mentioned storage tank has an orthogonal side and a bottom surface, this side is positioned at a side of the contiguous described first side of storage tank, this bottom surface abuts against slippage thereon for this ratchet piece, and this side and ratchet interblock are provided with an elastic component.