CN2657374Y

CN2657374Y - Expansion rod structure of horticultural shears

Info

Publication number: CN2657374Y
Application number: CN 03279663
Authority: CN
Inventors: 黄尧崇
Original assignee: Ho Cheng Garden Tools Co Ltd
Current assignee: Ho Cheng Garden Tools Co Ltd
Priority date: 2003-09-15
Filing date: 2003-09-15
Publication date: 2004-11-24
Anticipated expiration: 2013-09-15

Abstract

The utility model provides an expansion rod structure of horticultural shears, which is mainly composed of an inner tube and an outer tube suited together through a pivot. The inner tube is an H-shaped cross section type, and is provided with a sliding slot. The sliding slot is provided with an inner expansion slot and a through slot. The through slot is axially provided with a plurality interval arranged positioning concave edges, and a slide block can be slide provided inside the inner expansion slot. A positioning block provided between the slide block and a convex column of top end can be clamped with the positioning concave edge of the inner tube when the slide block is upwardly moved. A pressure button is arranged and fixed above the convex column. The utility model achieves the benefit of pressing operation and the effect of solidness and durability through the upwardly pushing and support of the pressure button together with the slide block in the normal state by spring.

Description

The expansion link structure of orchard shears

Technical field

The utility model is relevant a kind of orchard shears structure, is meant the novel space kenel design of its telescoping tube location switching construction especially.

Background technology

For in response to different use shear distance, general orchard shears all is provided with the structural design of scalable adjustment, the tradition orchard shears is to adopt eccentric rotation mode, reach the fixing and movable purpose of switching, its major defect is: this kind control mode, owing in shearing use,, cause the not good shortcoming of its firm position quite easily because operator's derotation promptly produces looseningly to the application of force.

Another kind of again traditional switching mode then is to reach by the mode of pushing slippage navigation button, though this kind mode polarization is good than the former, but no matter locate or during movable state, all reciprocally pushing switch, with regard to the conveniency of operation, real unsatisfactory complete, and remain further to be improved.

On the other hand, the telescoping tube section configuration of traditional orchard shears is nothing more than circle or elliptical shape, and this kind section configuration often is easy to generate diastrophic phenomenon after long-term the use, have the not good shortcoming of structural strength.

Therefore, how to develop a kind of expansion link structure that has more the orchard shears of desirable practicality, the person of being to use looks forward to, and also is that relevant dealer must make great efforts target and the direction that exploitation breaks through.

The inventor this in manufacturing development and the design experiences of being engaged in Related product for many years, at above-mentioned target, after design and the scrupulous assessment, create the technical solution of the utility model eventually in detail.

Summary of the invention

The purpose of this utility model provides a kind of expansion link structure of orchard shears, overcomes the drawback of prior art, reaches to use easy to operate and be not easy diastrophic purpose.

The purpose of this utility model is achieved in that a kind of expansion link structure of orchard shears, it is to be formed by inner and outer pipe phase pivot cover substantially, this outer tube one end is a cover group handle, the other end then is an open ports, interior pipe by this open ports pivot cunning among outer tube, the phase pivot spigot of this inner and outer pipe is organized respectively and is provided with block and position-limiting tube, it is characterized in that:

One side of this outer tube and spacing pipe end is preset with one and wears mouth and perforation; Should in pipe have a dovetail formula chute to should outer tube having on the side of wearing mouthful, the section of this chute is to have the groove location of wearing that contracts in an inner expanding groove position and the size, this wear groove in this tubular axis to being provided with most the recessed edge in spaced location;

One sleeve pipe is that cover is organized the periphery in this outer tube, and it mouthful is provided with one and wears groove should outer tube wear;

One slide block is to be slidedly arranged in the inner expanding groove of pipe in this, has the nargin that can axially reach radial displacement, the top of this slide block has a projection and stretched through up that this is worn groove, bores a hole, wears mouthful and wear groove, has a positioning block between this slide block and the projection, pipe is worn the recessed edge in location of groove in being sticked in during in this slide block toward top offset, and formation is inside and outside, pipe is fixing non-telescoping state;

One press button is the projection top that is fixed in slide block by its bottom one winding post group;

One spring is that group is placed between press button and the sleeve pipe, and this press button is up shored together with the slide block normality.

Should interior pipe be H shape sectional form.The groove periphery that wears of this sleeve pipe is that more to be provided with a convex ring edge firmly spacing with this spring bottom.The projection central authorities of this slide block are formed with a draw-in groove, and the corresponding edge clipping that is formed with the winding post bottom of this press button engages, and radially runs through this press button and winding post by a key, support the draw-in groove bottom that terminates in this slide block, make this press button and slide block group fixed bit.

The contrast background technology, main effect of the present utility model is as follows:

1, adopts the handover operation kenel of push type, reach and use convenient progressive.

2, after its press button is pressed, when interior pipe slippage, can decontrol press button, needn't push constantly, locate recessed edge mutually during contraposition with the next one again up to locating piece, the two can engage the location voluntarily.

3, body is a H shape sectional form, more can reach more robust practicality to resistant to bending active force.

Further specify below in conjunction with preferred embodiment and accompanying drawing.

Description of drawings

Fig. 1 is the exploded perspective schematic diagram of flexible pipe structure of the present utility model.

Fig. 2 is the combination schematic perspective view of flexible pipe structure of the present utility model.

Fig. 3 is the axial cross-sectional schematic of the stationary state of flexible pipe structure of the present utility model.

Fig. 4 is the radially cross-sectional schematic of Fig. 3.

Fig. 5 is the axial cross-sectional schematic of the Telescoping of flexible pipe structure of the present utility model.

Fig. 6 is the radially cross-sectional schematic of Fig. 5.

Fig. 7 is the integral planar schematic diagram that flexible pipe structure of the present utility model is applied to orchard shears.

Embodiment

Consult Fig. 1-shown in Figure 4, the preferred embodiment of the expansion link structure of orchard shears of the present utility model, it is to comprise:

One end of one outer tube 10 is to use for handle 11 cover groups (as shown in Figure 7), the other end then is an open ports, and a side of this end is preset with one and wears mouth 12, and an end of outer tube 10 then is inserted with a position-limiting tube 13, and the mouth 12 of wearing of these position-limiting tube 13 corresponding outer tubes has a perforation 14;

Pipe 20 is H shape sectional forms in one, the one end is to link with the cutting edge portion 15 (as shown in Figure 7) of orchard shears, the other end then the pivot cunning among outer tube 10, its corresponding outer tube 10 has on the side of wearing mouth 12 and has a dovetail formula chute, constitute this chute if see it by section, be have contract in an inner expanding groove 21 and the size wear groove 22, and this is worn groove 22 and is axially arranged with most the recessed edge 23 in spaced location along interior pipe 20, should in pipe 20 insert outer tubes 10 an end then more the plug group block 24 of one expanded outer diameter is arranged, in position-limiting tube 13, pipe 20 is deviate from preventing with block resistance;

One sleeve pipe 30 is that cover is organized in the periphery of outer tube 10, and wearing of its corresponding outer tube 10 mouthfuls 12 is provided with one and wears groove 31;

One slide block 40 is in the inner expanding groove 21 of pipe 20 in being slidedly arranged on, has the nargin that can axially reach radial displacement, the top of this slide block 40 has a projection 41 and up stretched through and wear groove 22, perforation 14, wear mouthfuls 12 and wear groove 31, has a positioning block 42 between this slide block 40 and the projection 41, in the time of can be in slide block 40 toward top offset, pipe is worn the recessed edge 23 in location of groove 22 in being sticked in, and constitutes inner and

outer pipe

20,10 and is fixing non-telescoping state;

One press button 50 is by 51 groups of projection 41 tops that are fixed in slide block 40 of its bottom one winding post;

One spring 60 is that group is placed between press button 50 and the sleeve pipe 30, so that press button 50 is up shored together with slide block 40 normalities.

It is more to be provided with a convex ring edge 32 that this sleeve pipe 30 wears groove 31 peripheries in it, and spring 60 bottoms are firmly spacing.

Projection 41 central authorities of this slide block 40 are formed with a draw-in groove 43, so that the winding post 51 bottom correspondences of press button 50 are formed with edge clipping 52, to reach engaging, can radially run through this press button 50 and winding post 51 by a key 53 again, support draw-in groove 43 bottoms terminate in slide block 40, make press button 50 must with 40 groups of fixed bits of slide block.

Operating principle of the present utility model and use operational scenario are as follows:

Cooperate and to consult Fig. 3-shown in Figure 4, it is the schematic diagram that telescoping tube is stationary state, because this press button 50 is together with up being shored by 60 elasticity of spring under slide block 40 normalities, under this state, if locating piece 42 on this slide block 40 is the recessed edge 23 in location of wearing groove 22 with interior pipe 20 mutually during contraposition, to engage mutually, and constitute in this pipe 20 moving stationary state of pivot that can't stretch.

Cooperate again and consult Fig. 5-shown in Figure 6, be that telescoping tube is scalable adjustment state signal, when the flexible accent of pipe 20 moves in desiring to carry out, the user only must down push press button 50, so can impel the recessed edge 23 in location of pipe 20 in locating piece 42 disengaging downwards on the slide block 40, this moment, the user can do flexible the adjustment by the interior pipe 20 of push-and-pull, in case locating piece 42 staggers with the recessed edge 23 in location, the user can decontrol press button 50, and needn't push constantly, pipe 20 to this locating piece 42 is located recessed edge 23 mutually during contraposition with the next one again in accent moves, this two can engage the location voluntarily.

Preamble is to carry out specific description at preferred embodiment of the present utility model; be familiar with the personage of this technology; not breaking away under spirit of the present utility model and the principle, the utility model is changed and revises, all should be covered by among the protection domain of the present utility model.

Claims

1, a kind of expansion link of orchard shears structure, it is to be formed by inner and outer pipe phase pivot cover substantially, this outer tube one end is a cover group handle, the other end then is an open ports, among outer tube, organize respectively and be provided with block and position-limiting tube, it is characterized in that by the phase pivot spigot of this inner and outer pipe by this open ports pivot cunning for interior pipe:

One slide block is to be slidedly arranged in the inner expanding groove of pipe in this, has the nargin that can axially reach radial displacement, the top of this slide block has a projection and stretched through up that this is worn groove, bores a hole, wears mouthful and wear groove, has a positioning block between this slide block and the projection, this slide block is sticked in the recessed edge in location that this interior pipe is worn groove toward top offset, and formation is inside and outside, pipe is fixing not flexible state;

One press button is the projection top that is fixed in slide block by a winding post group of its bottom;

One spring is that group is placed between press button and the sleeve pipe, and this press button is up shored together with slide block.

2, the expansion link of orchard shears according to claim 1 structure, it is characterized in that: pipe is a H shape sectional form in this.

3, the expansion link of orchard shears according to claim 1 structure is characterized in that: the groove periphery that wears of this sleeve pipe is that more to be provided with a convex ring edge firmly spacing with this spring bottom.

4, the expansion link of orchard shears according to claim 1 structure, it is characterized in that: the projection central authorities of this slide block are formed with a draw-in groove, the corresponding edge clipping that is formed with the winding post bottom of this press button engages, radially run through this press button and winding post by a key, support the draw-in groove bottom that terminates in this slide block, make this press button and slide block group fixed bit.