CN202029072U

CN202029072U - Hand tool with inner bushing

Info

Publication number: CN202029072U
Application number: CN2011200319767U
Authority: CN
Inventors: 陈怡富
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-30
Filing date: 2011-01-30
Publication date: 2011-11-09
Anticipated expiration: 2021-01-30

Abstract

Disclosed is a hand tool with an inner bushing. A holding space is arranged from the surface towards the inside at the head end of the hand tool, a ratchet assembly used for pulling a workpiece is arranged in the holding space, the shape of the inner outline of the holding space conforms to that of the outer outline of the ratchet assembly, a gap is reserved between the holding space and the ratchet assembly, and the inner bushing capable of bearing friction caused by rotation or movement of the ratchet assembly is filled in the gap. The inner bushing with the advantage of material hardness bears friction caused by rotation or movement of components of the ratchet assembly, the problem that the components of the ratchet assembly abrade the inner wall of the holding space so as to generate excessively large gaps is prevented, additionally, the inner bushing can be attached to inner walls of holding spaces of various ratchet tools, the effect of preventing the ratchet assembly from abrading the holding space is achieved, and the ratchet assembly can be stably positioned.

Description

The hand-held tool of tool neck bush

Technical field

The utility model relates to a kind of head end and has accommodation space, is installed with in order to pulling the spine move assembly of workpiece with accommodation space, and is provided with the hand-held tool of the neck bush of anti-wear usefulness at accommodation space and spine move inter-module, relates in particular to a kind of hand-held tool of tool neck bush.

Background technology

And even the locking of present many spare parts and finished industrial product, combination maintenance still is dependent on professional skilled worker and is carried out so that hand-held tool is free-hand, and so it is superior to have quality only, the hand-held tool of structure durable could be in the switching of carrying capacity, revolve in the lock operation and operate normally.

Now in order in the hand-held tool of pulling screw tightening, ratchet spanner, ratchet screw can directly switch the facilitating functions of pulling direction because of having on screw tightening, so obtain liking of hand-held tool user deeply, it also is the object that the dealer does one's utmost to develop, with the ratchet spanner is example, ratchet spanner switch to screw tightening pull direction the time, be that reversing switch is allocated to Wrench head one side, with the top that plugs on the reversing switch relative ratchet skew of device pushing and pressing clamping piece of pulling, the clamping piece of skew can prop up the accommodation space inwall of Wrench head and be meshed with the tooth of ratchet one side, and prevents that with the effect that clamping piece and accommodation space inwall offset ratchet from rotating arbitrarily when pulling screw tightening;

Yet, because reversing switch is when dialling commentaries on classics, when clamping piece is replaced the accommodation space inwall in skew, and the relative clamping piece of ratchet dallies when jumping tooth, outer rim separately all can rub with the accommodation space inwall, friction will cause the wearing and tearing of ratchet outer rim denture, clamping piece edge or accommodation space inwall continually, make and stay excessive gap between accommodation space and ratchet, clamping piece, reversing switch, cause each combination of components tolerance to increase, clamping piece and the ratchet compactness when engagement just significantly lowers, and just strength is big rotates arbitrarily ratchet because of pulling easily.

Because ratchet spanner can because of ratchet, clamping piece and reversing switch outer rim frequent with accommodation space in wall friction wearing and tearing each other, and then cause spanner to lose and pull function, so this creator sets about being improved then.

The utility model content

Technical problem underlying to be solved in the utility model is, overcomes the above-mentioned defective that prior art exists, and a kind of hand-held tool of tool neck bush is provided, and it reaches the effect that prevents spine move component wear accommodation space, but strong fix spine move assembly.

For reaching aforesaid purpose, the utility model is that the head end in this hand-held tool is to offer an accommodation space by the surface to inside, then being installed with one in this accommodation space can be in order to pull the spine move assembly of workpiece, the kenel of profile is to conform to the kenel of spine move assembly outline in this accommodation space, and between this accommodation space and this spine move assembly is to be reserved with a gap, it is characterized in that: this gap is to be filled with a neck bush, bears with neck bush that the spine move assembly rotates whereby or the friction when mobile.

The utility model is further to comprise based on aforementioned structure:

One, this neck bush is the interior profile that fits in accommodation space, and around the outline of living the spine move assembly, this neck bush and hand-held tool head end are made with different metals respectively.

Two, the hardness of this neck bush is the hardness that is positioned at accommodation space greater than the hand-held tool head end.

This hand-held tool is during for ratchet spanner, and its internal structure kenel has following several:

One, this accommodation space forms continuous first, second, the 3rd storage tank, this spine move assembly is to comprise a ratchet head, one clipping block, one reversing switch and one pushes up the part of pulling, this ratchet head is to place in first storage tank, this clipping block then places in second storage tank, and be meshed with ratchet head with the side that tooth is arranged, this reversing switch then plugs pull part and placing in the 3rd storage tank of top, the side that this clipping block is anodontia then is subjected to push up the part of pulling and replaces, stir reversing switch and be with the top part pushing and pressing clipping block of pulling and change the position of engagement with ratchet head, switch the direction that hand-held tool is pulled workpiece whereby.

Two, this accommodation space forms continuous first, second storage tank, this spine move assembly is to comprise a ratchet head, two clipping blocks, one reversing switch and two elastic components, this ratchet head is to place in first storage tank, this reversing switch is to place in second storage tank, this reversing switch is to have a plane and a convex surface, this two clipping block then is butted on the plane and the convex surface of reversing switch respectively, respectively to have an end of tooth be corresponding with ratchet head to this clipping block, the other end then respectively is provided with a spindle nose, so that respectively this spindle nose and neck bush offset, this two elastic component then is butted on respectively respectively between this clipping block and neck bush, corresponding each clipping block of this neck bush respectively has a recess that supplies spindle nose to replace, this second storage tank then cuts open the depression of inserting for recess, the operation reversing switch makes its plane, convex surface is to transferring to the clipping block of opposite side, be to make that this two clipping block is that axle is done pivot pendulum with the spindle nose, the clipping block pendulum that makes convex side is from ratchet head and oppress elastic component, the elastic force that the clipping block of planar side is discharged by elastic component is put nearly ratchet head and its engagement, switches the direction that hand-held tool is pulled workpiece whereby.

Three, this accommodation space forms continuous first, second storage tank, this spine move assembly comprises a ratchet head, one clipping block and an elastic component, this ratchet head is to place in first storage tank, this clipping block and this elastic component are to place in second storage tank, these elastic component two ends offset with clipping block and neck bush respectively, this clipping block is to mesh with ratchet head, and this clipping block has one first and supports face and one second to face, offset to face and neck bush with first, supporting face with second is to offset with elastic component, ratchet head is rotated towards different directions, be to order about the clipping block move left and right, support the face compression elastic piece with second, or support face with first and prop up neck bush, switch the direction that hand-held tool is pulled workpiece whereby.

By said structure, the utility model is to bear each assembly in the spine move assembly with the neck bush that the material hardness advantage is arranged rotating or friction when mobile, prevent that each assembly of spine move assembly from producing the problem in excessive gap because of wearing and tearing accommodation space inwall, in addition, this neck bush can be sticked at the inwall of various ratchet-driven tool accommodation space, its application surface still has immense wide usage except that the disclosed ratchet spanner of the utility model.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is that the hand-held tool of the utility model tool neck bush is in the perspective exploded view of head end.

Fig. 2 is the stereoscopic schematic diagram that hand-held tool of the present utility model is finished in the head end combination.

Fig. 3 is the structural profile schematic diagram of hand-held tool of the present utility model in head end.

Fig. 4 is the structural profile schematic diagram of the utility model second embodiment.

Fig. 5 is the stereoscopic schematic diagram of the neck bush of second embodiment.

Fig. 6 is the structural profile schematic diagram of the utility model the 3rd embodiment.

Fig. 7 is the stereoscopic schematic diagram of the neck bush of the 3rd embodiment.

The number in the figure explanation:

Accommodation space 1

first storage tank

10,10a, 10b

Second storage tank

11,11a, 11b the 3rd storage tank 12

Depression 13 spine move assemblies 2

Ratchet head 20,20a, 20b clipping block 21,21a, 21b

Reversing switch 22,22a push up the part 23 of pulling

Elastic component 24,24a plane 25

Convex surface 26 spindle noses 27

First supports face 28 second supports face 29

Neck bush 3,3a, 3b recess 31

Screw 4 cover plates 5

The specific embodiment

The utility model is the hand-held tool of relevant a kind of tool neck bush, the head end of this hand-held tool is to offer an accommodation space by the surface to inside, then being installed with one in this accommodation space can be in order to pull the spine move assembly of workpiece, the kenel of profile is to conform to the kenel of spine move assembly outline in this accommodation space, and between this accommodation space and this spine move assembly is to be reserved with a gap, it is characterized in that: this gap is to be filled with a neck bush, bears with neck bush that the spine move assembly rotates whereby or the friction when mobile.

See also Fig. 1 to shown in Figure 3, be the utility model preferred embodiment figure, in present embodiment, this hand-held tool is a ratchet spanner, this accommodation space 1 form link to each other first, second, the

3rd storage tank

10,11,12, this spine move assembly 2 comprises a ratchet head 20, one clipping block 21, one reversing switch 22 and one pushes up the part 23 of pulling, this ratchet head 20 places in

first storage tank

10,21 of this clipping blocks place in second storage tank 11, and be meshed with ratchet head 20 with the side that tooth is arranged, 22 of this reversing switches plug pull part 23 and placing in the 3rd storage tank 12 of top, these clipping block 21 anodontia sides then are subjected to push up the part 23 of pulling and replace, stir reversing switch 22 and be with the top part 23 pushing and pressing clipping blocks 21 of pulling and change the position of engagement with ratchet head 20, switch the direction that hand-held tool is pulled workpiece whereby;

This neck bush 3 is the interior profiles that fit in accommodation space 1, promptly fit with first to the 3rd storage tank, 10,11,12 inwalls of accommodation space 1, and around the outline of living spine move assembly 2, the outer rim that is about to ratchet head 20, clipping block 21 and reversing switch 22 is centered on, this neck bush 3 is made with different metals respectively with the hand-held tool head end, and the hardness of this neck bush 3 is positioned at the hardness of accommodation space 1 greater than the hand-held tool head end;

Again, this ratchet spanner is to establish a cover plate 5 in head end with some screw 4 locks, with accommodation space 1 sealing, spine move assembly 2 is positioned in the ratchet spanner head end with cover plate 5;

By said structure, the utility model is to bear each assembly in the spine move assembly rotating or friction when mobile with the neck bush that the material hardness advantage is arranged, and prevents that each assembly of spine move assembly from producing the problem in excessive gap because of wearing and tearing accommodation space inwall.

The continuous Fig. 4 that please refer to is to shown in Figure 7, second and third implements illustration for the utility model, because ratchet spanner is very common in hand-held tool, and its thin portion structure is not the emphasis that the utility model institute desire is discussed, so this two example structure, function are identical with first embodiment, do not repeat them here, below only be illustrated with regard to different place:

As Fig. 4, Fig. 5, the accommodation space 1 of this ratchet spanner form link to each other first, the

second storage tank

10a, 11a, this spine move assembly 2 comprises a ratchet head 20a, two clipping block 21a, one reversing switch 22a and two elastic components 24, this ratchet head 20a places in the first storage tank 10a, this reversing switch 22a places in the second storage tank 11a, this reversing switch 22a has a plane 25 and a convex surface 26, this two clipping block 21a then is butted on the plane 25 and convex surface 26 of reversing switch 22a respectively, the end that each clipping block 21a has tooth is corresponding with ratchet head 20a, the other end then respectively is provided with a spindle nose 27, so that respectively this spindle nose 27 and neck bush 3a offset, this two elastic component 24 then is butted on respectively between each clipping block 21a and neck bush 3a, corresponding each the clipping block 21a of this neck bush 3a respectively has a recess 31 that supplies spindle nose 27 to replace, and this second storage tank 11a then cuts open for recess and inserts 31 depression 13;

Operation reversing switch 22a makes its plane, 25,26 couples of clipping block 21a that transfer to opposite side of convex surface, make that this two clipping block 21a serves as that axle is done pivot pendulum with spindle nose 27, the clipping block 21a pendulum that makes convex surface 26 sides is from ratchet head 20a and oppress elastic component 24, the elastic force that the clipping block 21a of plane 25 sides is discharged by elastic component 24 is put nearly ratchet head 20a and its engagement, switches the direction that hand-held tool is pulled workpiece whereby.

As Fig. 6, Fig. 7, the accommodation space 1 of this ratchet spanner form link to each other first, the

second storage tank

10b, 11b, this spine move assembly 2 comprises a ratchet head 20b, an one clipping block 21b and an elastic component 24a, this ratchet head 20b places in the first storage tank 10b, this clipping block 21b and this elastic component 24a place in the second storage tank 11b, this elastic component 24a two ends offset with clipping block 21b and neck bush 3b respectively, this clipping block 21b meshes with ratchet head 20b, and this clipping block 21b has one first and supports face 28 and one second to face 29, supporting face 28 with first offsets with neck bush 3b, supporting face 29 with second offsets with elastic component 24a, 20b rotates towards different directions with ratchet head, be to order about clipping block 21b move left and right, support face 29 compression elastic piece 24a with second, or support face 28 with first and prop up neck bush 3b, switch the direction that hand-held tool is pulled workpiece whereby.

By the foregoing description as can be known, neck bush of the present utility model, its kenel are to do design at the outline of the interior profile of accommodation space and spine move assembly, can be around living the spine move assembly, reach the effect that prevents spine move component wear accommodation space on the one hand, but one side strong fix spine move assembly.

Claims

1. the hand-held tool of a tool neck bush, the head end of this hand-held tool is offered an accommodation space by the surface to inside, then being installed with one in this accommodation space can be in order to pull the spine move assembly of workpiece, the kenel of profile is to conform to the kenel of spine move assembly outline in this accommodation space, and be reserved with a gap between this accommodation space and this spine move assembly, it is characterized in that: this gap is filled with one and bears that the spine move assembly rotates or the neck bush of friction when mobile.

2. the hand-held tool of tool neck bush according to claim 1 is characterized in that: described neck bush is the interior profile that fits in described accommodation space, and states the outline of spine move assembly around the residence.

3. the hand-held tool of tool neck bush according to claim 1 is characterized in that: the hardness of described neck bush is positioned at the hardness of accommodation space greater than the hand-held tool head end.

4. the hand-held tool of tool neck bush according to claim 1, it is characterized in that: described hand-held tool is a ratchet spanner, described accommodation space forms first, second, third continuous storage tank, described spine move assembly comprises that a ratchet head, a clipping block, a reversing switch and push up the part of pulling, this ratchet head is to place in first storage tank, this clipping block then places in this second storage tank, and be meshed with ratchet head with the side that tooth is arranged, this reversing switch then plugs pull part and placing in the 3rd storage tank of top, and the side that this clipping block is anodontia is replaced by this top part of pulling then.

5. the hand-held tool of tool neck bush according to claim 1, it is characterized in that: described hand-held tool is a ratchet spanner, this accommodation space forms continuous first, second storage tank, this spine move assembly is to comprise a ratchet head, two clipping blocks, one reversing switch and two elastic components, this ratchet head is to place in first storage tank, this reversing switch is to place in second storage tank, this reversing switch is to have a plane and a convex surface, this two clipping block then is butted on the plane and the convex surface of reversing switch respectively, respectively to have an end of tooth be corresponding with this ratchet head to this clipping block, the other end then respectively is provided with a spindle nose, offset with each spindle nose and described neck bush, this two elastic component then is butted on respectively between each clipping block and neck bush.

6. the hand-held tool of tool neck bush according to claim 5 is characterized in that: corresponding described each clipping block of described neck bush is respectively to have a recess that supplies spindle nose to replace, and described second storage tank then cuts open the depression of inserting for recess.

7. the hand-held tool of tool neck bush according to claim 1, it is characterized in that: described hand-held tool is a ratchet spanner, this accommodation space forms continuous first, second storage tank, this spine move assembly comprises a ratchet head, one clipping block and an elastic component, this ratchet head is to place in first storage tank, this clipping block and this elastic component are to place in second storage tank, these elastic component two ends offset with clipping block and neck bush respectively, described clipping block is to mesh with ratchet head, and this clipping block has one first and supports face and one second to face, offset to face and described neck bush with first, supporting face with second is to offset with this elastic component.