CN102069486B

CN102069486B - Sleeved structure of hand tool grab handle

Info

Publication number: CN102069486B
Application number: CN200910223963A
Authority: CN
Inventors: 胡厚飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-20
Filing date: 2009-11-20
Publication date: 2012-08-29
Anticipated expiration: 2029-11-20
Also published as: CN102069486A

Abstract

The invention discloses a sleeved structure of a hand tool grab handle. Because a positioning part in a positioning structure arranged on the hand tool grab handle is matched with a fastener, after the positioning part is positioned in a positioning hole of a sleeved hollow grab handle pipe body, one end of the hand tool grab handle is supported against the inner diameter of the hollow grab handle pipe body by the double-step circle design so that rocking is avoided; because the fastener is arranged on the hand tool grab handle relative to the other end of the positioning part and is in a C-shaped fastening design with at least two clamping parts and a limiting part, and the hand tool grab handle can be supported against the inner diameter of the hollow grab handle pipe body, gaps at both ends of the hollow grab handle pipe body are both supported after the inner diameter of the hollow grab handle pipe body is sleeved with the hand tool grab handle so that the integral rocking is reduced to the lowest; and a clamping slot is arranged on the inner diameter of the hollow grab handle pipe body and used for clamping the fastener when the fastener is sleeved so that the hand tool grab handle has the effect of convenient positioning.

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 design 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 wrench; 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; Narrow space 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, use than the short hand tool handle and go up the power of reversing that relative meeting produces drive division and have the undercapacity situation because of moment is too small 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 the user possibly must have the above length hand-held tool of two kinds of specifications to perform smoothly.

With reference to ratchet wrench structural representation of the prior art shown in Figure 1; For the lever length specification that solves aforementioned hand-held tool uses the problem that is run in different spaces; Manufacturer develops with the long hollow lever of the hand-held tool socket one of shorter lever; See through this shorter lever detachable with the design that is mounted on 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 the ratchet wrench structure example of the prior art; Slightly palm is wide approximately for the lever length of this ratchet wrench 30 of the prior art; The user can singly grip this grip with palm; Reversing this lever 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 seeing through its inner set spine move structure binding and driving; 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 socket one length of ratchet wrench 30 of the prior art and locate; The end that is designed to this lever of the prior art is a sheathed end 33; Offer a hole slot 331 on the circle footpath of this sheathed 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 an elastomer 42; Wherein this keeper 41 is class's circle as shown in the figure; 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 elastomer 42 than the part in great circle footpath, and hollow lever 50 is with respect to hollow lever 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 in hollow lever body 51 internal diameters that penetrate this hollow lever 50 and to snapping portion 52 places, this keeper 41 can see through sheathed elastomer 42 ejections in its bottom from these locating hole 521 places and from-inner-to-outer protrusion and be positioned to limit this locating hole 521 in, uses making this this lever be positioned to reach in the hollow lever 50 characteristics with longer lever length.

Again with reference to ratchet wrench structure partial sketch map of the prior art shown in Figure 2; This type of designs after this keeper 41 is positioned this locating hole 521; Though possessed long lever application of force length arranged; This socket design has the loosening problem of socket, the circle footpath of this lever as must volume production and smoothly with hollow lever body 51 sockets of preset this hollow lever 50, this lever penetrates this hollow lever 50 greatest circle footpath partly 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 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 the lever external diameter around; Add that this lever penetrates the certain length of tool in this hollow lever body 51; Therefore lever is rocked in this hollow lever 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 disappearance that causes this keeper 41 to break away from these locating holes 521; Because ratchet wrench lever of the prior art is when this hollow lever body 51 of socket, after this lever penetrates in this hollow lever body 51 certainly, the operator must be absorbed in this buckling piece 40 is attempted from this locating hole 521 of hollow lever body 51 internal alignment; After penetrating the position and arrive this locating hole 521 fully to buckling piece 40; Buckling piece 40 is ejected on locating hole 521, reach the effect of locating engagement, so this mode in lever penetrates this hollow lever body 51 after; The operator experiences the accurate position that buckling piece 40 penetrates in the time of can't be by eyes or operation by human hand; Only can be by way of feeling conjecture position haply, after constantly rotating and advancing and retreat, could buckling piece 40 positions be arrived this locating hole 521 fully and accomplish the socket location; This process is complicated and consuming time, is not good design.

Summary of the invention

Be the disappearance that the length sleeve access node structure designing institute that solves aforementioned hand-held tool of the prior art produces, the present invention provides a kind of socket join structure design of hand tool shank of more firm socket.

The socket join structure of a kind of hand tool shank provided by the invention includes:

One hand-held tool; This hand-held tool one end has a drive division; The other end with respect to drive division is a lever, and this hand-held tool offers a hole slot in lever one end, and this hand-held tool offers an annular groove between this hole slot and this drive division; Be provided with a location structure in this hole slot, be provided with a holding firmware in this annular groove;

One hollow lever; This hollow lever one end is a hollow lever body, and this hollow lever body one end is an opening, is equipped with a handle with respect to the other end of this opening; The internal diameter of this hollow lever body supplies lever one end of aforementioned hand-held tool to penetrate socket; This hollow lever body is provided with a locating hole, and the distance of this locating hole and this opening is the distance greater than the hole slot and the annular groove of aforementioned hand-held tool, make the lever socket of hand-held tool get into hollow lever body after; The hole slot of this hand-held tool and annular groove all are placed in the hollow lever body, and this locating hole and this location structure fastening;

Wherein this location structure and holding firmware can produce elastic force simultaneously, and this location structure is resisted against on the locating hole of hollow lever internal diameter of tube body of this hollow lever, and this holding firmware engaging is positioned the set draw-in groove of hollow lever internal diameter of tube body of this hollow lever.

This location structure has a positioning piece and an elastomer; The upper end of this keeper is formed with first class end and second class end;, the lever socket of this hand-held tool arrives this position of positioning hole to this hole slot in getting into the hollow lever body of this hollow lever; This first class end fastens the location for protruding and passing outside locating hole, to form; Second class end of first class end below is then through this hole slot; And be limited to locating hole peritreme below by the top ora terminalis of second class end, and this second class bottom edge do not conflict lever the hole slot opening part and make second class end have the stroke of upwards replacing, make the elastomer of keeper bottom in this hole slot, continue to produce the elastic force ejection that makes progress.

First class end circle footpath of this keeper is slightly less than this locating hole.

Second class end circle footpath of this keeper is slightly less than this hole slot aperture and is slightly larger than the aperture of this locating hole.

The circle footpath, bottom of this keeper is slightly larger than this hole slot aperture.

This draw-in groove is identical to this location structure centre distance with this holding firmware with the distance at locating hole center.

The periphery of this holding firmware is provided with at least two blocking part and at least one limiting sections of protrusion that contract in, and this at least two blocking part is squeezed when this holding firmware penetrates hollow lever internal diameter of tube body and the limiting section bending is resisted against on the hollow lever internal diameter of tube body.

The length of this hand-held tool forms an axis, and the axial line of this hole slot is the axis perpendicular to this hand-held tool.

The aperture of this hole slot is the aperture greater than this locating hole.

The peritreme of this hole slot is formed with the rim that contracts in slightly.

This keeper is a circle, but makes this elastomer of keeper inside socket.

The height of second class of this keeper end be that peritreme to this locating hole greater than this hole slot is in the surperficial distance of hollow lever internal diameter of tube body.

Hand tool shank socket join structure design provided by the invention; Can increase the use steadiness; The hand tool shank socket join structure of said two location is respectively equipped with a positioning piece and a holding firmware, and it is supported in the two ends in the interior caliber after hollow lever body and the hand tool shank socket respectively, and sees through the design that keeper is two classes circle; Make it after hollow lever body is offered corresponding locating hole location, have the lasting elastic force of replacing and can not rock; Wherein this hand tool shank is after penetrating the hollow lever internal diameter of tube body that this extension adds cover; But mat keeper and this holding firmware two ends, gap after hollow lever body and hand tool shank socket produce the elasticity of expansion and replace; Make the hand tool shank body of rod after the socket not make the gap that produces after hollow lever internal diameter of tube body and the hand tool shank socket because of rocking the space apart from drop formation in pipe because of only having the single socket strong point; And then the steadiness after the increase socket; And the keeper of aforementioned hand tool shank socket is special two classes circle structure; When making hand tool shank penetrate the socket of hollow lever; See through between the height that this keeper has first class end and second class end difference for replacing power, and the elastic force that reaches normality property is replaced and make can not produce between the gap and rock greater than this hand tool shank surface and the design generation of hollow lever internal diameter of tube body clearance distance; This keeper is provided with a holding firmware in the other end at locating hole closed position place simultaneously; And the relative position place on hollow lever internal diameter of tube body is provided with a draw-in groove; Wherein the periphery of this holding firmware is provided with a limiting section and two blocking parts that protrude radian; This two blocking part of mat is arranged at when penetrating hollow lever internal diameter of tube body on the hand tool shank in holding firmware; This two blocking part receives hollow lever internal diameter of tube body extruding and forces this limiting section bending upwards to be resisted against on the hollow lever internal diameter of tube body, produces the elasticity identical with aforementioned keeper and replaces power, and the two ends after making internal clearance after hollow lever body and the hand tool shank socket because of socket are all replaced support and made and do not rock because of the gap between hollow lever internal diameter of tube body and hand tool shank; And increase steadiness; And this draw-in groove with the distance at locating hole center is and the identical design of holding firmware to keeper centre distance, no matter can make hand tool shank after any angle penetrates hollow lever internal diameter of tube body, when fastening when holding firmware arrival draw-in groove position; Promptly represent this keeper to the parallel position of locating hole; Only must rotate slightly this moment, just can tune to keeper and locating hole and fasten, and increases the accuracy of location.

Description of drawings

Fig. 1 analyses and observe the assembling sketch map for the side of the socket join structure of hand tool shank in the prior art.

Fig. 2 is the partial schematic sectional view of the socket join structure of hand tool shank in the prior art.

Fig. 3 is the perspective exploded view of the socket join structure of hand tool shank in the preferred embodiment of the present invention.

Fig. 4 is the solid assembling sketch map of the socket join structure of hand tool shank in the preferred embodiment of the present invention.

Fig. 5 is the assembly decomposing schematic representation of the socket join structure of hand tool shank in the preferred embodiment of the present invention.

Fig. 6 is the partial schematic sectional view of the socket join structure of hand tool shank in the preferred embodiment of the present invention.

Fig. 7 analyses and observe the action sketch map for the socket join structure of hand tool shank in the preferred embodiment of the present invention.

Fig. 8 is another partial sectional view of the socket join structure of hand tool shank in the preferred embodiment of the present invention.

The specific embodiment

Preferred embodiment assembling and decomposing schematic representation with reference to the socket join structure of figure 3, Fig. 4 and hand tool shank of the present invention shown in Figure 5; Wherein ratchet wrench 30 has drive division 31, spine move part 34; And the sheathed end 33 of the other end; And hollow lever 20 has a hollow lever body 21 and a handle 23; Hollow lever body 21 is provided with locating hole 221 grades of a snapping portion 22 and snapping portion 22 positions offering and is all the prior art constructions design, and the present invention is characterized in to offer on the sheathed end 33 hole slot 331 and device has a location structure 10, and this location structure 10 has a positioning piece 11 and an elastomer 12; And the other end suitable distance of this lever in these location structure 10 positions offers the annular groove 32 of a depression, and this annular groove 32 is arranged with a holding firmware 36.

Socket join structure structure assembling view with reference to hand tool shank of the present invention shown in Figure 6; This hand tool shank is after penetrating the hollow lever body 21 that this extension adds cover; But mat keeper 11 is replaced with the elasticity that the interior ligament two ends of this holding firmware 36 after hollow lever body 21 and hand tool shank socket produce expansion; The structural design of the two location of this kind; Can make the hand tool shank body of rod after the socket the gap of hollow lever body 21 internal diameters and the hand tool shank body of rod rocked because of forming in pipe apart from drop, and then the steadiness after the increase socket is a principal character of the present invention because of only having the single socket strong point.

Secondly; Analyse and observe the action sketch map with reference to the socket join structure three-dimensional assembling sketch map of hand tool shank of the present invention shown in Figure 4 and the socket join structure of hand tool shank of the present invention shown in Figure 7; Wherein X-X ' the hatching line of Fig. 4 can form the cutaway view of Fig. 7 A, Fig. 7 C and Fig. 7 E; And Fig. 7 B, Fig. 7 D and Fig. 7 F are respectively the vertical section action diagram of the Y-Y ' hatching line of Fig. 7 A, Fig. 7 C and Fig. 7 E in regular turn; This keeper 11 is provided with a holding firmware 36 in the other end of locating hole 221 closed position; For utilizing the annular groove 32 that offers a depression on the hand tool shank body of rod on body of rod surface; Holding firmware 36 is sheathed on this annular groove 32 location, and the relative position place on these hollow lever body 21 internal diameters is provided with a draw-in groove 211, wherein these holding firmware 36 peripheries are provided with a limiting section 362 and two blocking parts 361 that protrude radian; When mat two blocking parts 361 penetrate hollow lever body 21 internal diameters on hand tool shank; This two blocking part 361 receives hollow lever body 21 internal diameters extruding and forces these limiting section 362 bendings upwards to be resisted against on hollow lever body 21 internal diameters, produce elasticity and replace keeper 11 after power makes internal clearance after hollow lever body 21 and the hand tool shank socket because of socket and replace to support to make with holding firmware 36 two ends and can not rock and increase steadiness, and this draw-in groove 211 with the distance at locating hole 221 centers is and the identical design of holding firmware 36 to keeper 11 centre distances; No matter can make hand tool shank after any angle penetrates hollow lever body 21 internal diameters; When fastening, promptly represent this keeper 11, only must hand tool shank be rotated slightly this moment to the parallel position of locating hole 221 when holding firmware 36 arrival draw-in groove 211 positions; Just can tune to keeper 11 and fasten, increase the accuracy of location with locating hole 211.

Again with reference to shown in Figure 8; This location structure 10 has positioning piece 11, elastomer 12; This keeper 11 is for having the circle design of 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; This height h2 and the length of this height h1 are summed up at least the distance of peritreme to this locating hole 221 in hollow lever body 21 external diameters greater than this hole slot 331; Use making 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 b distance of hollow lever body 21 inner diameter location, make second class hold 112 apical margins to replace locating hole 221 when hollow lever body 21 internal diameter peritremes; Its height h2 can make second class hold 112 root edges and keeper 11 places of continuing not to reach the restriction site of hole slot 331 peritremes; The relative elastomers that force hole slot 331 inner installings 12 see through the restriction that the restriction of 111 root edges and these locating hole 221 inner peritremes are held by first class, and reverse produces reverse elastic force to these hole slot 331 bottoms, and second class end 112 does not receive travel limits greater than peritreme to this locating hole 221 of this hole slot 331 in the gap b of hollow lever body 21 inner diameter location distance because of height h2 therefore the time again; And then the reverse elastomer 12 that orders about is replaced sheathed end 33 external diameters and is close proximity on hollow lever body 21 internal diameters; And holding and unlikely rocking between the gap b of lever and hollow lever body 21 internal diameters of mat elastic force, keeper 11 bodies circle footpath is for being slightly larger than the aperture of this hole slot 331 again, makes keeper 11 bodies can be arranged in this hole slot 331 in the space with lower member and form position limit in second class end 112; So when sheathed end 33 penetrates or shifts out in hollow lever body 21 internal diameters, the start in these hole slot 331 internal diameter strokes back and forth of this keeper 11.

And the present invention sees through the design of aforementioned keeper 11 and the collocation that cooperates this holding firmware 36; After can making sheathed end 33 be positioned this locating hole 221 through this keeper 11; Sheathed end 33 is resisted against avoid on hollow lever body 21 internal diameters producing by the design of its pair class circle and rocks; Collocation by holding firmware 36 can make the hand tool shank entire length in hollow lever body 21 internal diameters, keep the gap at two ends to replace effect again; The possibility of rocking is minimized, and draw-in groove 211 and holding firmware 36 collocation, the effect of convenient location had when making the hand tool shank socket.

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; It is characterized in that; This location structure has a positioning piece and an elastomer; The upper end of this keeper is formed with first class end and second class end, in the lever socket of this hand-held tool gets into the hollow lever body of this hollow lever, arrives this position of positioning hole to this hole slot, and this first class end is for protrusion and pass outside locating hole, to form and fasten the location; Second class end of first class end below is then through this hole slot; And be limited to locating hole peritreme below by the top ora terminalis of second class end, and this second class bottom edge do not conflict lever the hole slot opening part and make second class end have the stroke of upwards replacing, make the elastomer of keeper bottom in this hole slot, continue to produce the elastic force ejection that makes progress.

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

4. the socket join structure of hand tool shank as claimed in claim 2 is characterized in that, second class end circle footpath of this keeper is slightly less than this hole slot aperture and is slightly larger than the aperture of this locating hole.

5. the socket join structure of hand tool shank as claimed in claim 2 is characterized in that, the circle footpath, bottom of this keeper is slightly larger than this hole slot aperture.

6. the socket join structure of hand tool shank as claimed in claim 1 is characterized in that, this draw-in groove is identical to this location structure centre distance with this holding firmware with the distance at locating hole center.

7. the socket join structure of hand tool shank as claimed in claim 1; It is characterized in that; The periphery of this holding firmware is provided with at least two blocking part and at least one limiting sections of protrusion that contract in, and this at least two blocking part is squeezed when this holding firmware penetrates hollow lever internal diameter of tube body and the limiting section bending is resisted against on the hollow lever internal diameter of tube body.

8. the socket join structure of hand tool shank as claimed in claim 1 is characterized in that, the length of this hand-held tool forms an axis, and the axial line of this hole slot is the axis perpendicular to this hand-held tool.

9. the socket join structure of hand tool shank as claimed in claim 1 is characterized in that, the aperture of this hole slot is the aperture greater than this locating hole.

10. the socket join structure of hand tool shank as claimed in claim 1 is characterized in that, the peritreme of this hole slot is formed with the rim that contracts in slightly.

11. the socket join structure of hand tool shank as claimed in claim 2 is characterized in that, this keeper is a circle, but makes this elastomer of keeper inside socket.

12. the socket join structure of hand tool shank as claimed in claim 2 is characterized in that, the height of second class of this keeper end be that peritreme to this locating hole greater than this hole slot is in the surperficial distance of hollow lever internal diameter of tube body.