CN215673129U

CN215673129U - Metal shaft with adjustable length

Info

Publication number: CN215673129U
Application number: CN202121506793.6U
Authority: CN
Inventors: 洪松
Original assignee: Jinxiong Suzhou Intelligent Technology Co ltd
Current assignee: Jinxiong Suzhou Intelligent Technology Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-01-28
Anticipated expiration: 2031-07-05

Abstract

The utility model discloses a metal shaft with adjustable length, which comprises a hollow main shaft body for connecting a part, wherein a backing ring is fixedly sleeved at any one end of the main shaft body; according to the metal shaft with the adjustable length, the main shaft body can be matched with the outer shaft bodies with different lengths, resource waste caused by replacement of the metal shaft can be reduced, different outer shaft bodies can be replaced according to different environments, the adaptability of the metal shaft to the environments can be improved, the connection reliability between the main shaft body and the outer shaft bodies can be improved due to the arrangement of the labyrinth grooves and the limiting columns, and the stability of the metal shaft as a connecting piece is ensured.

Description

Metal shaft with adjustable length

Technical Field

The utility model belongs to the technical field of metal pieces, and particularly relates to a metal shaft with adjustable length.

Background

The metal shaft is a commonly used connecting part in mechanical equipment, and in order to adapt to different use environments, the traditional metal shaft can have a plurality of specifications with different lengths under the standard of the same diameter so as to achieve the purpose of using according to different connecting distances; this would require the entire metal shaft to be removed from the machine when replacing metal shafts of different lengths, and would result in waste of material by directly discarding the removed metal shaft that has not been scrapped. There is therefore a need for a solution to the above problems.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide a length-adjustable metal shaft which can reduce material waste, is firmly connected and is suitable for environments with different lengths.

In order to achieve the purpose, the utility model provides a length-adjustable metal shaft which is characterized by comprising a hollow main shaft body for connecting a part, wherein a backing ring is fixedly sleeved at any one end of the main shaft body, a labyrinth groove is formed in the outer surface of the main shaft body along the length of the main shaft body, an outer shaft body is movably sleeved outside the main shaft body, a clamping block matched with the labyrinth groove is arranged on the inner wall of the outer shaft body, when the outer shaft body is embedded towards the main shaft body, the clamping block moves along the extending direction of the labyrinth groove, when the outer shaft body enters a corner, the outer shaft body is rotated to adjust, and finally the clamping block enters the end part, close to the backing ring, of the labyrinth groove to complete the combination of the outer shaft body and the main shaft body.

In one example, the labyrinth grooves and the fixture blocks comprise a plurality of groups, the labyrinth grooves are uniformly distributed along the circumferential direction of the outer surface of the spindle body, the fixture blocks are uniformly distributed along the circumferential direction of the inner wall of the outer shaft body, and the fixture blocks are displaced along the extending direction of the labyrinth grooves.

In one example, an end of the labyrinth groove remote from the backing ring extends to an end of the spindle body, and the outer shaft body abuts against the backing ring when the cartridge is displaced to an end of the labyrinth groove close to the backing ring.

In one example, the diameter of the backing ring is larger than the main shaft body, and the diameter of the backing ring is the same as the diameter of the outer shaft body, so that the integrity of the outer surface of the combined metal shaft is improved.

In one example, the backing ring is disposed in a T-shape with the spindle body.

In one example, a plurality of through holes penetrating through the backing ring are formed in the backing ring, the through holes extend into the labyrinth channel, the limiting columns are movably arranged in the through holes in a penetrating mode, the limiting columns are enabled to vertically displace along the extending direction of the through holes, and when the clamping block is located at the end portion of the labyrinth channel, the clamping block is prevented from reversely displacing through the limiting columns screwed into the labyrinth channel, and the combination of the outer shaft body and the main shaft body is prevented from being influenced.

In one example, the number of the through holes is the same as the number of the labyrinth grooves, and the through holes are disposed on the same vertical plane as the corresponding labyrinth grooves.

In one example, the inner wall of the through hole is an internal thread, the outer surface of the limiting column is an external thread, and the limiting column is prevented from being separated from the labyrinth channel in a manner that the limiting column is screwed into the through hole, so that the limiting effect is influenced.

The metal shaft with the adjustable length provided by the utility model can bring the following beneficial effects:

1. the main shaft body can be matched with the outer shaft bodies with different lengths, so that the resource waste caused by replacement of the metal shaft can be reduced;

2. different outer shaft bodies are replaced according to different environments, so that the adaptability of the metal shaft to the environment can be improved;

3. the labyrinth channel and the setting of spacing post can improve the reliability of being connected between the main shaft body and the outer axis body, guarantee the stability of metal axle as the connecting piece.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a front view of a length adjustable metal shaft of the present invention;

FIG. 2 is a schematic structural view of a spindle body according to the present invention;

FIG. 3 is a schematic structural diagram of the outer axle body according to the present invention;

FIG. 4 is a side view of a length adjustable metal shaft of the present invention.

Detailed Description

In order to more clearly explain the overall concept of the utility model, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description of the present specification, reference to the description of the terms "one aspect," "some aspects," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1 to 4, an embodiment of the present invention provides a length-adjustable metal shaft, which includes a hollow main shaft body 1 for connecting components, a backing ring 2 is fixedly sleeved on any one end of the main shaft body 1, a labyrinth groove 11 is formed on an outer surface of the main shaft body 1 along the length of the main shaft body 1, an outer shaft body 3 is movably sleeved outside the main shaft body 1, a clamping block 31 adapted to the labyrinth groove 11 is disposed on an inner wall of the outer shaft body 3, when the outer shaft body 3 is fitted toward the main shaft body 1, the clamping block 31 is displaced along an extending direction of the labyrinth groove 11, when the outer shaft body enters a corner, the outer shaft body 3 is rotated to finally allow the clamping block 31 to enter an end portion of the labyrinth groove 11 close to the backing ring 2, so as to complete the combination of the outer shaft body 3 and the main shaft body 1, the labyrinth groove 11 and the clamping block 31 include a plurality of groups, the labyrinth groove 11 is uniformly distributed along the circumferential direction of the outer surface of the main shaft body 1, the clamping block 31 is uniformly distributed along the circumferential direction of the inner wall of the outer shaft body 3, the fixture block 31 is displaced along the extending direction of the labyrinth groove 11, one end of the labyrinth groove 11 far away from the backing ring 2 extends to the end part of the main shaft body 1, when the fixture block 31 is displaced to the end part of the labyrinth groove 11 close to the backing ring 2, the outer shaft body 3 is abutted against the backing ring 2, the diameter of the backing ring 2 is larger than that of the main shaft body 1, the diameter of the backing ring 2 is the same as that of the outer shaft body 3, the integrity of the outer surface of the combined metal shaft is improved, the backing ring 2 and the main shaft body 1 are arranged in a T shape, a plurality of through holes 21 penetrating through the backing ring are formed in the backing ring 2, the through holes 21 extend into the labyrinth groove 11, the limiting columns 22 are movably arranged in the through holes 21 in a penetrating manner, the limiting columns 22 are vertically displaced along the extending direction of the through holes 21, when the fixture block 31 is positioned at the end part of the labyrinth groove 11, the limiting columns 22 are screwed into the labyrinth groove 11, the fixture block 31 is prevented from reversely displacing, and the combination of the outer shaft body 3 and the main shaft body 1 is influenced, the quantity of through-hole 21 is the same with labyrinth channel 11, and through-hole 21 sets up on same perpendicular with corresponding labyrinth channel 11, and the through-hole 21 inner wall is the internal thread, and spacing post 22 surface is the external screw thread, through the mode of spacing post 22 screw in through-hole, prevents that spacing post 22 from deviating from in the labyrinth channel 11, influences spacing effect.

The working principle is as follows: when the outer axis body embolias the main shaft body, the maze channel of the fixture block activity embedding main shaft body surface of outer axis body inner wall, along with the degree of depth that the outer axis body embolias the main shaft body, the fixture block is along with the derivation direction displacement of maze channel, when the fixture block displacement to the bottom of maze channel, outer axis body and backing ring butt each other, make outer axis body and main shaft body form a whole, screw the spacing post in the through-hole simultaneously, make spacing post extend to in the maze channel, it is spacing to the fixture block, prevent that the rotation that the metal axle produced in the use from leading to the appearance of being connected of outer axis body and main shaft body not hard up.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a metal shaft with adjustable length, its characterized in that, is including the hollow main shaft body that is used for adapting unit, the fixed backing ring that registrates of arbitrary one end of main shaft body, main shaft body surface is followed main shaft body length has seted up the maze channel, the outer axis body of main shaft external activity registrate, outer axis body inner wall be provided with the fixture block of maze channel looks adaptation.

2. The metal shaft as claimed in claim 1, wherein the labyrinth grooves and the clamping blocks comprise a plurality of groups, the labyrinth grooves are uniformly distributed along the circumferential direction of the outer surface of the main shaft body, the clamping blocks are uniformly distributed along the circumferential direction of the inner wall of the outer shaft body, and the clamping blocks are displaced along the extending direction of the labyrinth grooves.

3. A length adjustable metal shaft according to claim 1, wherein the labyrinth channel extends away from the end of the backing ring to the end of the main shaft body.

4. A length adjustable metal axle as claimed in claim 1, wherein the diameter of the backing ring is greater than the diameter of the main axle body, the diameter of the backing ring being the same as the diameter of the outer axle body.

5. A length adjustable metal shaft as claimed in claim 1, wherein the backing ring is disposed in a T-shape with the main shaft body.

6. The metal shaft with the adjustable length of claim 1, wherein the backing ring is provided with a plurality of through holes penetrating through the backing ring, the through holes extend into the labyrinth channel, and a limiting column is movably arranged in the through holes in a penetrating manner, so that the limiting column vertically displaces along the extending direction of the through holes.

7. A length adjustable metal shaft according to claim 6, wherein the number of said through holes is the same as that of said labyrinth grooves, and said through holes are provided on the same vertical plane as the corresponding labyrinth grooves.

8. The metal shaft with the adjustable length of claim 6, wherein the inner wall of the through hole is an internal thread, and the outer surface of the limiting column is an external thread.