CN110814843B

CN110814843B - Telescopic guide rail

Info

Publication number: CN110814843B
Application number: CN201911204099.6A
Authority: CN
Inventors: 马德平; 王坤扬; 冯俊亮; 韩向福; 闫永昌
Original assignee: Henan Yiwoke Industrial Equipment Co ltd
Current assignee: Henan Yiwoke Industrial Equipment Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2021-09-28
Anticipated expiration: 2039-11-29
Also published as: CN110814843A

Abstract

The invention discloses a telescopic guide rail which comprises a guide rail body, a chain, a spring and a tensioning assembly, wherein the tensioning assembly comprises a fixed block, an undercarriage and a tensioning piece; the both ends of guide rail main part are stacked together, are fixed with the couple on the one end surface of guide rail main part, and the fixed block is fixed on the other end surface of guide rail main part, and the part that the surface of guide rail main part is located between couple and the fixed block bonds along circumference has a plurality of flexible powerful magnetic sheet. The flexible strong magnetic sheet has excellent flexibility and strong magnetism, on one hand, the flexible strong magnetic sheet ensures complete attachment with the telescopic guide rail main body, on the other hand, the flexible strong magnetic sheet ensures quick positioning and installation of fixation, and has excellent flexibility; meanwhile, the arc-shaped bulges on the guide rail main body ensure the precision of guide movement, and the tensioning assembly is matched with the spring and the chain for use, so that the quick connection and tensioning between the connecting pieces between two vertical surfaces in a three-dimensional space are realized.

Description

Telescopic guide rail

Technical Field

The invention belongs to the technical field of pipeline cutting and welding, and particularly relates to a telescopic guide rail capable of freely stretching and retracting according to the diameter of a workpiece.

Background

With the rise of the automatic pipe cutting and welding technology, the automatic cutting and welding tools on the market are various, but all have the following disadvantages: the fixed guide device of the cutting and welding tool can not freely change along with the diameter of the pipeline, and can not meet the requirement on positioning accuracy except for changing, so that the cutting and welding effect can not meet the market requirement; how to develop a guide rail which can be freely changed according to the diameter of a pipeline, has high positioning precision, and is convenient and quick to mount and dismount is very important.

Disclosure of Invention

The invention aims to provide a telescopic guide rail which can be freely stretched and contracted according to different diameters of pipelines, can realize accurate positioning and accurate guiding of the rail, and is convenient to install and quick to assemble and disassemble.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a telescopic guide rail comprises a guide rail body, a chain, a spring and a tensioning assembly, wherein the tensioning assembly comprises a fixed block, an undercarriage and a tensioning piece; the two ends of the guide rail main body are stacked together, a hook is fixed on the outer surface of one end of the guide rail main body, a fixed block is fixed on the outer surface of the other end of the guide rail main body, and a plurality of flexible strong magnetic sheets are bonded on the part, located between the hook and the fixed block, of the outer surface of the guide rail main body along the circumferential direction; the undercarriage is integrally Y-shaped, one end of the undercarriage is a handle, the other end of the undercarriage is two mounting pieces, one ends of the two mounting pieces, which are far away from the handle, are respectively positioned on two sides of the fixed block and connected with the fixed block through first pins, and one ends of the two mounting pieces, which are close to the handle, are respectively positioned on two sides of one end of the tensioning piece, which is close to the handle, and are rotatably connected with the tensioning piece through second pins; one end of the tensioning piece, which is far away from the handle, is connected with the spring, the other end of the spring is connected with the chain, and the other end of the chain is hung on the hook.

Preferably, the end of the tension member remote from the handle is formed by twisting a plate material, the plate material twists one half of the plate material 90 ︒ upwards along a diagonal direction, and the end of the twisted plate material is provided with a spring connecting hole.

Preferably, the outer side of the handle is sleeved with a protective sleeve.

The guide rail main body can be freely stretched and overlapped, and can be suitable for workpieces of different sizes, and a plurality of arc-shaped bulges with certain intervals are arranged on the surface of the guide rail main body, so that the guide rail is convenient to guide and position.

The flexible strong magnetic sheets are uniformly distributed along the circumferential direction on the outer surface of the guide rail main body between the hook and the fixed block, so that the quick positioning effect is achieved; when the handle is closed downwards, the handle can be adsorbed on the nearest flexible powerful magnetic sheet, and the tightening force of the guide rail main body is ensured through the tension of the spring and the tensioning piece.

When the handle of the tensioning assembly is completely closed downwards, the first pin, the second pin and the handle are on the same straight line, and a dead point structure in mechanical mechanics can be formed, so that the tensioning state is stable, and the tensioning assembly is convenient to install and quick to disassemble.

The invention has the following beneficial effects: the guide rail main body adopts the existing telescopic overlapping structure, thereby being suitable for workpieces with different pipe diameters; the handle can rotate within the range of 180 ︒, when the handle is fully closed downwards and is attracted to the flexible strong magnetic sheet, a dead point structure is formed, and the tensioning state is stable. The flexible strong magnetic sheet has excellent flexibility and strong magnetism, on one hand, the flexible strong magnetic sheet ensures complete attachment with the telescopic guide rail main body, on the other hand, the flexible strong magnetic sheet ensures quick positioning and installation of fixation, and has excellent flexibility; meanwhile, the arc-shaped bulge on the guide rail main body ensures the precision of guide movement, and the tensioning assembly is matched with the spring and the chain for use, so that the quick connection and tensioning between the connecting pieces between two vertical surfaces in a three-dimensional space are realized; the novel multifunctional combined type electric heating cooker is ingenious in concept, simple in structure, convenient to manufacture, high in use flexibility, and fast to install and disassemble, and can meet the use requirements of different occasions.

Drawings

FIG. 1 is a schematic structural view of a telescopic guide rail of the present invention;

FIG. 2 is a front view of the telescoping rail;

FIG. 3 is a bottom view of the telescoping rail;

FIG. 4 is a right side view of the telescoping guide track;

FIG. 5 is a schematic structural view of the take-up assembly;

FIG. 6 is a top view of the take-up assembly;

FIG. 7 is a schematic view of the motion of the take-up assembly.

Detailed Description

The invention will be further illustrated with reference to specific examples, without however restricting the scope of the invention thereto.

Example 1

As shown in fig. 1-7, a telescopic guide rail comprises a guide rail body 7, a chain 10, a spring 9 and a tensioning assembly 8, wherein the tensioning assembly 8 comprises a fixed block 1, a landing gear and a tensioning piece 5; the two ends of the guide rail main body 7 are stacked together, a hook 11 is fixed on the outer surface of one end of the guide rail main body 7, the fixed block 1 is fixed on the outer surface of the other end of the guide rail main body 7, and a plurality of flexible strong magnetic sheets 12 are uniformly adhered to the part, located between the hook 11 and the fixed block 1, of the outer surface of the guide rail main body 7 along the circumferential direction; the undercarriage is integrally Y-shaped, one end of the undercarriage is a handle, a protective sleeve 3 is sleeved outside the handle, the other end of the undercarriage is two installation pieces 2, one ends, far away from the handle, of the two installation pieces 2 are located on two sides of the fixed block 1 respectively and are connected with the fixed block through first pins 6, and one ends, close to the handle, of the two installation pieces 2 are located on two sides of one end, close to the handle, of the tensioning piece 5 respectively and are rotatably connected with the tensioning piece 5 through second pins 4.

One end of the tensioning piece 5, which is far away from the handle, is formed by twisting a plate, the plate twists one half of the plate upwards by 90 ︒ along the diagonal direction, a spring connecting hole is formed in the tail end of the twisted plate, one end of a spring 9 is hung on the spring connecting hole, the other end of the spring is connected with a chain 10, and the other end of the chain 10 is hung on a hook 11.

The guide rail main body can be freely stretched and overlapped, the telescopic guide rail can be suitable for workpieces of different sizes, and a plurality of arc-shaped protrusions 13 with certain distance intervals are arranged on the surface of the guide rail main body, so that the guide rail is convenient to guide and position.

The flexible strong magnetic sheets are uniformly distributed along the circumferential direction at the part of the outer surface of the guide rail main body, which is positioned between the hook 11 and the fixed block 1, so that the quick positioning effect is achieved; when the handle is closed downwards, the handle can be adsorbed on the nearest flexible strong magnetic sheet 12, and the tightening force of the main body of the guide rail 7 is ensured through the tension of the spring 9 and the tensioning piece 5.

During the use, earlier guide rail main part 7 cover on the work piece, fold guide rail main part 7 together, use flexible powerful magnetic sheet 12 to fix a position fast, hang spring 9 on the spring connecting hole of tensioning 5 left end, the chain 10 hangs at the other end of spring 9, to left rotation handle, hang chain 10 on couple 11, then to right rotation handle, drive tensioning 5 through the second pin (the second pin has also guaranteed the simultaneous function of undercarriage front and back both sides simultaneously), and then pulling spring 9 and chain 10, the handle (handle itself also can be adsorbed by flexible powerful magnetic sheet 12) forms the dead point state when closing completely downwards, finally fix a position in guide rail main part 7 surface.

The above are only examples of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described too much, it should be noted that, for those skilled in the art, it can make several variations and modifications without departing from the structure of the present invention, and these should be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A telescopic guide rail which is characterized in that: the guide rail comprises a guide rail body, a chain, a spring and a tensioning assembly, wherein the tensioning assembly comprises a fixed block, an undercarriage and a tensioning piece; the two ends of the guide rail main body are stacked together, a hook is fixed on the outer surface of one end of the guide rail main body, a fixed block is fixed on the outer surface of the other end of the guide rail main body, and a plurality of flexible strong magnetic sheets are bonded on the part, located between the hook and the fixed block, of the outer surface of the guide rail main body along the circumferential direction; the undercarriage is integrally Y-shaped, one end of the undercarriage is a handle, the other end of the undercarriage is two mounting pieces, one ends of the two mounting pieces, which are far away from the handle, are respectively positioned on two sides of the fixed block and connected with the fixed block through first pins, and one ends of the two mounting pieces, which are close to the handle, are respectively positioned on two sides of one end of the tensioning piece, which is close to the handle, and are rotatably connected with the tensioning piece through second pins; one end of the tensioning piece, which is far away from the handle, is connected with the spring, the other end of the spring is connected with the chain, and the other end of the chain is hung on the hook; when the handle of the tensioning assembly is completely closed downwards, the first pin, the second pin and the handle are on the same straight line to form a dead point structure in mechanical mechanics, so that the tensioning state is stable.

2. The telescopic guide track of claim 1, wherein: the end of the tension piece far away from the handle is formed by twisting a plate, one half of the plate is twisted upwards by 90  along the diagonal direction, and the tail end of the twisted plate is provided with a spring connecting hole.

3. The telescopic guide track according to claim 2, characterized in that: the outside cover of handle has the protective sheath pipe.