CN101954637B

CN101954637B - Sleeve structure of handle of hand tool

Info

Publication number: CN101954637B
Application number: CN2009101579400A
Authority: CN
Inventors: 胡厚飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-17
Filing date: 2009-07-17
Publication date: 2012-06-06
Anticipated expiration: 2029-07-17
Also published as: CN101954637A

Abstract

The invention discloses a sleeve structure of a handle of a hand tool, comprising a double-step locator. When the handle of the hand tool is sleeved with a lengthened hollow handle, the first step end of the double-step locator is limited in a location hole of the hollow handle and the second step end thereof does not reach the restricted height of a hole groove of the handle for accommodating the double-step locator, so that the double-step locator generates a resisting force on an elastic ring at the other end in the hole groove to ensure that the handle resists against the diameter of an inner pipe of the hollow handle without swaying relative to a relative position where the first step end of the double-step locator resists against the location hole; and the space of the other end of the handle which is penetrated in the inner pipe of the hollow handle is provided with a second restrictor generating resistance in the same direction with the double-step locator to ensure that the handle generates elastic restriction in the same direction after being penetrated in the inner pipe of the hollow handle and the effect of increasing the sleeved stability of the handle of the hand tool is achieved.

Description

The socket join structure of hand tool shank

Technical field

The present invention relates to a kind of socket join structure of hand tool shank, have more the socket join structure of steadiness when relating in particular to the sheathed lengthening lever of a kind of hand tool shank.

Background technology

Products such as at present commercially available hand-held tool such as ratchet spanner; It reverses the work package work that drives for the design that connects a lever through drive division provides the user to operate; But the restriction of the space size arround its lever often is subject to this hand-held tool when using and can't hold long size; For example in car engine chamber, motor case or the like narrow space; These narrow spaces all can be restricted to long hand tool shank can't drive work package work smoothly; Therefore just there is the short hand tool shank design of dimensions length to produce, exchanges the space of smooth running for and do not interfered, go up the power of reversing that relative meeting produces drive division and have the undercapacity situation because of moment is too small but use than the short hand tool handle by its short lever length; When running into the bigger work package of general resistance; Power is not enough can't to drive work smoothly because of reversing again, so therefore the hand-held tool that the user must prepare again to have longer lever separately causes possibly must having two kinds of length hand-held tools more than the specification to the user to operate smoothly.

Existing ratchet spanner structural representation as shown in Figure 1; For the lever length specification that solves aforementioned hand-held tool uses the problem that is run in different spaces; There is the dealer to develop with the long hollow lever of the hand-held tool socket one of shorter lever; Through this shorter lever detachable be mounted on the design of this hollow lever, use the demand that two kinds of lever length specifications are provided simultaneously, also reduce the user and purchase the hand-held tool cost of two kinds of different size levers and the trouble of carrying; In this existing ratchet spanner structure example; Slightly palm is wide approximately for lever 32 length of this existing ratchet spanner 30; The user can singly grip this lever 32 places with palm; Reversing this lever 32 with short distance reverses with the spine move part of establishing 34 that connect on the drive division 31 that drives front end and this drive division 31; Wherein this drive division 31 is executed work with this spine move part 34 for linking and drive through its inner set spine move structure; This spine move part 34 is widely used on the hand-held tool with the structure of this drive division 31, thus seldom give unnecessary details, but and be can make the long hollow lever 50 of lever 32 sockets one length of existing ratchet spanner 30 and locate; The existing end that is designed to this lever 32 is a sheathed end 33; Offer a hole slot 331 on the circle footpath of this socket end 33, and in this hole slot 331, be arranged with a buckling piece 40, this buckling piece 40 is a positioning piece 41 and a spring 42; Wherein this keeper 41 is class's circle as shown in Figure 1; Its class circle upper end can protrude from outside the sheathed end 33 circle footpaths than the part in roundlet footpath, and class circle lower end then connects in the hole slot 331 that is formed on sheathed end 33 of limiting with spring 42 than the part in great circle footpath, and hollow lever 50 is with respect to body 51 appropriate positions of this sheathed end 33; This is provided with a snapping portion 52; And offer in these snapping portion 52 places a locating hole 521 provide aforementioned keeper 41 upper ends than the roundlet path portion in the sheathed end 33 of lever 32 in the body that penetrates this hollow lever 50 51 internal diameters and to snapping portion 52 places, this keeper 41 can be from these locating hole 521 places through sheathed spring 42 ejections in its bottom from-inner-to-outer protrusion and be positioned to limit this locating hole 521 in, use making this lever 32 be positioned to reach in the hollow lever 50 characteristics with longer lever length.

See also existing structure partial schematic diagram shown in Figure 2 again; This type of designs after this keeper 41 is positioned this locating hole 521; Though possessed long lever application of force length arranged; But this socket design has the loosening problem of socket, the circle footpath of this lever 32 as must volume production and smoothly with body 51 sockets of preset this hollow lever 50, the greatest circle footpath that this lever 32 penetrates these hollow lever 50 parts should be slightly less than hollow lever 50 internal diameters; And the design of mass production must all possess has certain nargin to allow certain production error; Therefore the external diameter of this lever 32 has a gap with the internal diameter of this hollow lever 50, and after socket, produces gap a as shown in Figure 2 and produce, owing to this gap a be result from lever 32 external diameters around; Add that this lever 32 penetrates the certain length of tool in this body 51; Because of making the gap a of indication and lever 32 rocked in this body 51, its result who rocks just can make hand-held tool perform that precision is not good, feel difference and rock the increasing that more can cause gap a for a long time, even cause rocking the excessive shortcoming that causes this keeper 41 to break away from these locating holes 521.

Summary of the invention

The present invention is directed to the shortcoming of the length sleeve access node structure designing institute generation of hand-held tool in the prior art, a kind of structural design with more firm socket is provided.

The socket join structure of hand tool shank of the present invention includes:

One hand-held tool; This hand-held tool has a drive division and a lever; This lever offers a hole slot at least with respect to an end of this drive division; Be provided with a pair of class location structure in this hole slot, said lever offers second hole slot on socket hollow lever position, be provided with second limited part in this second hole slot;

One hollow lever, this hollow lever has a body and handle, an end of this body and the lever socket of aforementioned hand-held tool, this body is provided with a locating hole and aforesaid pair of class's location structure fastens;

This pair class location structure has an a pair of class keeper and an elastomer; This pair class keeper is a circle; Its upper end is formed with first class end and second class end; When this lever was socketed on the body of this hollow lever, this first class end was located for protruding from the locating hole, and second class end then is through this hole slot and is limited in the locating hole peritreme; This second class root edge hole slot opening part of lever of not conflicting simultaneously, make the elastomer of two classes keeper bottom in this hole slot, produce elastic force with the lever of replacing this hand-held tool on the internal diameter of tube body of this hollow lever and can not produce and rock.

In the socket join structure of hand tool shank of the present invention, first class of said pair of class's keeper end circle footpath is less than this locating hole.

In the socket join structure of hand tool shank of the present invention, second class of said pair of class's keeper end circle footpath is less than this hole slot aperture and greater than the aperture of this locating hole.

In the socket join structure of hand tool shank of the present invention, circle footpath, the bottom of said pair of class's keeper is greater than this this hole slot aperture.

The present invention also provides a kind of socket join structure of hand tool shank, includes:

One hand-held tool, this hand-held tool have a drive division and a lever, and this lever one end offers a hole slot and one second hole slot at least, is provided with a pair of class location structure in this hole slot, is provided with second limited part in this second hole slot;

One hollow lever, this hollow lever has a body and handle, and the internal diameter of this body and the lever of aforementioned hand-held tool socket-connect, and this body is provided with a locating hole and aforesaid pair of class's location structure fastens;

This pair class location structure and second limited part have a suitable distance, and can produce simultaneously elastic force with the lever of replacing this hand-held tool on the internal diameter of tube body of this hollow lever and can not produce and rock.

In the socket join structure of above-mentioned hand tool shank; Said pair of class's location structure has an a pair of class keeper and an elastomer; This pair class keeper is that a circle and upper end are formed with first class end and second class end; When the lever of this hand-held tool was socketed on the body of this hollow lever, this first class end was located for protruding from the locating hole, and second class end then is through this hole slot and is limited in the locating hole peritreme; This second class root edge hole slot opening part of lever of not conflicting makes the elastomer of two classes keeper bottom in this hole slot, produce elastic force simultaneously.

In the socket join structure of above-mentioned hand tool shank, first class of said pair of class's keeper end circle footpath is less than this locating hole.

In the socket join structure of above-mentioned hand tool shank, second class of said pair of class's keeper end circle footpath is less than this hole slot aperture and greater than the aperture of this locating hole.

In the socket join structure of above-mentioned hand tool shank, circle footpath, the bottom of said pair of class's keeper is greater than this this hole slot aperture.

The present invention is the design of two classes circle through the keeper of aforementioned lever socket; After making hand tool shank penetrate the hollow lever; Through first class end of this pair class keeper and the design of the locating hole socket location of hollow lever; And the height of second class of this pair class keeper is the design greater than the gap in pipe circle footpath in the hole slot groove edge of this lever and the hollow lever; When making aforementioned first class end be limited to this locating hole, second connects the maximum height limit that class's end does not reach the hole slot of ccontaining pair of class's keeper of lever, and the bullet ring of therefore two class's keeper other ends in hole slot produces replaces power; The relative position that forces lever to replace locating hole in first class of this pair class keeper end is resisted against on the hollow lever inner tube diameter, and reaches the elastic force restriction of normality property and can not rock; The present invention is except that aforesaid pair of class's keeper design again; The other end that more can in lever penetrates the hollow lever, manage offers second limited part; Through the design replaced of elasticity in the same way of this second limited part and the aforementioned pair of class's keeper; More make lever penetrate the pipe back produces same position in this hollow lever elastic limit and gap, more increase the firm effect after the hand tool shank socket.

Description of drawings

Fig. 1 analyses and observe the assembling sketch map for the side of ratchet spanner structure in the prior art.

Fig. 2 is the partial schematic sectional view of ratchet spanner structure in the prior art.

Fig. 3 is the perspective exploded view of socket join structure according to the invention.

Fig. 4 is the solid assembling sketch map of socket join structure according to the invention.

Fig. 5 is the assembly decomposing schematic representation of socket join structure according to the invention.

Fig. 6 is the solid assembling sketch map of socket join structure according to the invention.

Fig. 7 is the partial schematic sectional view of socket join structure according to the invention.

Fig. 8 is another partial schematic sectional view of socket join structure according to the invention.

Fig. 9 is another partial schematic sectional view of socket join structure according to the invention.

The specific embodiment

Those skilled in the art below cooperate Figure of description that embodiment of the present invention is done more detailed explanation, so that can implement after studying this specification carefully according to this.

Like Fig. 3 and preferred embodiment sketch map of the present invention shown in Figure 4; It is example that the present invention is mainly with the ratchet spanner; It is ratchet spanner 30 structural designs of short formula; Except known drive division 31 and spine move part 34; The sheathed end 33 that the one of which end is connected with a lever 32 and end is all identical with existing structure; Main design feature of the present invention only, on sheathed end 33, offering a hole slot 331 and being provided with a pair of class location structure 10 in wherein, this pair class location structure 10 has an a pair of class keeper 11 and a spring 12; And accidental quality of the present invention be to be provided with in addition on the lever 32 one locate 10 parallelism structurals with this pair class and second hole slot 321 that second limited part 35 that launches is in the same way offered on these lever 32 bodys in; This second limited part 35 and a spring 351 are all and are installed in second hole slot 321, and second limited part 35 replaces by this spring 351 and be part and protrude from second hole slot 321 and limited by its peritreme, and the distance that second limited part 35 and second hole slot 321 are provided with position and 11 settings of this pair class keeper can have the design of different distance according to the length of lever 32; And lever 32 is for being arranged in the hollow lever 20 front end bodys 21; Wherein one insert behind these body 21 internal diameters with respect to this pair class keeper 11 with respect to lever 32 and to insert the position behind the stroke on this body 21, also offer a snapping portion 22, this snapping portion 22 is provided with a locating hole 221; Make this pair class keeper 11 can be in body 21 internal diameters from this locating hole 221 protrusions and location, and the end of this body 21 is provided with a handle 23 and is existing design.

Yet second limited part, 35 main effects are to provide this pair class other end of keeper 11 in lever 32 is arranged at hollow lever 20 to replace holding power; Use maintenance one fixed interval (FI) that makes lever 32 normality in body 21 internal diameters and avoid rocking; So this second limited part 35 is not restricted to combining of the spheroid shown in second limited part 35 of aforementioned preferred embodiment and this spring 351; Also can be and the design that possibly have the protrusion elastic construction such as buckle with a C type and replace, have the effect that a normality property is replaced power and reach equally.

Please cooperate Fig. 6, Fig. 7, Fig. 8, structure assembling sketch map of the present invention that he is shown in Figure 9 again; The present invention is characterized in the design of this pair class keeper 11; This pair class keeper 11 be characterized as the circle design that its top has two classes; Wherein the top is one first a class end 111; First class holds 111 belows to offer bigger second class end 112 in a circle footpath; Wherein first class end 111 is for can protrude from outside the aforesaid locating hole 221; This first class end 111 has a height h1; And the circle footpath that second class end 112 that 111 belows offer is held by this first class is the circle footpath that is slightly larger than first class end 111 and the aperture of locating hole 221, and wherein second class end 112 has a height h2, and this height h2 and the length of this height h1 are summed up at least peritreme greater than this hole slot 331 to this locating hole 221 in the distance of body 21 external diameters; Use and make first class end 111 can protrude from locating hole 221 outside fixs; Height h2 then greater than peritreme to this locating hole 221 of this hole slot 331 in the gap of body 21 inner diameter location the b distance, make second class hold 112 apical margins to replace locating hole 221 when body 21 internal diameter peritremes, its height h2 can make second class hold 112 root edges and two classes keeper 11 body places of continuing not to reach the restriction site of hole slot 331 peritremes; The relative springs 12 that force hole slot 331 inner installings through first class's bottom edge be limited to the restriction of these locating hole 221 inner peritremes reverse these hole slot 331 bottoms are produced reverse elastic force; Therefore second class end does not receive travel limits greater than peritreme to this locating hole 221 of this hole slot 331 in the gap b of body 21 inner diameter location distance because of height h2 the time again, and then the reverse spring 12 that orders about replaces sheathed end 33 external diameters and be close proximity on body 21 internal diameters, and the holding and unlikely rocking between the gap b of lever 32 and body 21 internal diameters of mat elastic force; Two again classes keeper 11 bodies circle footpath is for being slightly larger than the aperture of this hole slot 331; This pair class keeper 11 make two classes keeper 11 bodies can be arranged in this hole slot 331 in the space with lower member and form position limit, so when sheathed end 33 penetrated or shift out in body 21 internal diameters, can move in these hole slot 331 internal diameter strokes back and forth in second class end 112.

And the present invention is through the design of aforementioned pair of class's keeper 11; And the collocation that cooperates this second limited part 35; After can making sheathed end 33 be positioned this locating hole 221 through this pair class keeper 11; Order about sheathed end 33 by the design generation of two classes circle and be resisted against the elastic force on body 21 internal diameters; And avoid lever 32 and sheathed end 33 socket hollow levers 20 backs to produce and rock, can make lever 32 entire length in body 21 internal diameters, keep same gap by the collocation of second limited part 35 again and replace power, reach complete and be covered on body 21 internal diameters; The possibility of rocking is minimized, use producing best hand-held tool operating effect and the effects such as damage of avoiding rocking and rocking generation.

The above is merely in order to explain preferred embodiment of the present invention; Be not that attempt is done any pro forma restriction to the present invention according to this; Therefore, all have in that identical creation spirit is following do relevant any modification of the present invention or change, all must be included in the category that the invention is intended to protect.

Claims

1. the socket join structure of a hand tool shank is characterized in that, includes:

2. the socket join structure of hand tool shank as claimed in claim 1 is characterized in that, first class end circle footpath of said pair of class's keeper is less than this locating hole.

3. the socket join structure of hand tool shank as claimed in claim 1 is characterized in that, second class of said pair of class's keeper end circle footpath is less than this hole slot aperture and greater than the aperture of this locating hole.

4. the socket join structure of hand tool shank as claimed in claim 1 is characterized in that, the circle footpath, bottom of said pair of class's keeper is greater than this hole slot aperture.

5. the socket join structure of a hand tool shank is characterized in that, includes:

6. the socket join structure of hand tool shank as claimed in claim 5; It is characterized in that; Said pair of class's location structure has an a pair of class keeper and an elastomer, and this pair class keeper is that a circle and upper end are formed with first class end and second class end, when the lever of this hand-held tool is socketed on the body of this hollow lever; This first class end is located for protruding from the locating hole; Second class end is then for through this hole slot and be limited in the locating hole peritreme, and this second class root edge hole slot opening part of lever of not conflicting makes the elastomer of two classes keeper bottom in this hole slot, produce elastic force simultaneously.

7. the socket join structure of hand tool shank as claimed in claim 5 is characterized in that, first class end circle footpath of said pair of class's keeper is less than this locating hole.

8. the socket join structure of hand tool shank as claimed in claim 5 is characterized in that, second class of said pair of class's keeper end circle footpath is less than this hole slot aperture and greater than the aperture of this locating hole.

9. the socket join structure of hand tool shank as claimed in claim 5 is characterized in that, the circle footpath, bottom of said pair of class's keeper is greater than this hole slot aperture.