CN212198170U

CN212198170U - Long pipeline traction device in limited space

Info

Publication number: CN212198170U
Application number: CN202020615170.1U
Authority: CN
Inventors: 张保栋; 尹倩; 谷庆
Original assignee: Shanxi Longxiang Hangxiao Technology Co ltd
Current assignee: Shanxi Longxiang Hangxiao Technology Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-12-22
Anticipated expiration: 2030-04-22

Abstract

The utility model discloses a long pipeline traction device in a limited space, which comprises an outer wedge block, a traction rod and a hook bolt, wherein the outer wedge block consists of three parts which are formed by equally cutting a hollow cylindrical component, and the three parts are mutually independent and have no fixed connection; the traction rod is in a round table shape, is arranged in the hollow cavity of the special-shaped wedge and is in close contact with the cavity; the hook bolt is connected with the traction rod through threads. The technical problem that the long pipeline traction installation is difficult to implement due to the fact that the space is too small in a limited space is solved; aiming at the alloy pipeline with lower hardness and easy deformation, the traditional traction method is often used for damaging the pipeline, and the device can effectively reduce the damage to the pipeline in the traction process due to the difference of the mechanical principle.

Description

Long pipeline traction device in limited space

Technical Field

The utility model belongs to the technical field of the pipeline construction device, concretely relates to long pipeline draw gear in restricted space.

Background

The pipeline engineering is a comprehensive engineering for installing pipelines and auxiliary facilities by combining modern scientific technology with traditional construction technology, and comprises pipeline installation of general civil buildings, pipeline installation of industrial plants, municipal pipe network installation and the like, and also comprises pipeline installation of areas such as energy stations with strong speciality, large refrigerating and heating machine rooms and the like. In the construction operation of pipeline engineering, the material, thickness, installation quality and the like of the pipeline all need to strictly meet the design and standard requirements, and the stable, efficient and safe operation of a pipeline system is ensured.

The pipeline traction is a key link in the pipeline construction process, the pipeline traction mode is various, and in a general construction environment, the pipeline traction is easy to realize. But when the pipeline construction operation is in the restricted passageway space, the long pipeline pulls the installation because the space is narrow and small, and the construction degree of difficulty can strengthen greatly. In addition, for alloy pipelines with low hardness and easy deformation, the pipelines are often damaged by using a traditional traction method, and the installation quality of the pipelines is further reduced.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art's is not enough, provides a long pipeline draw gear in the confined space, and the device simple structure has solved in the confined space, and long pipeline draws the technical problem of installation because the space is difficult to implement for a short time.

In order to achieve the purpose, the utility model discloses a realize through following technical scheme:

a long pipeline traction device in a limited space comprises a traction rod, a hook bolt and an outer wedge block, wherein the traction rod is of a tapered columnar structure, and the outer diameter of the front end of the traction rod is smaller than that of the rear end of the traction rod; the front end of the traction rod is connected with a hook bolt, and an outer wedge block is detachably arranged outside the traction rod; the outer wedge block is of a cylindrical structure, a hollow cavity axially penetrates through the inner part of the outer wedge block, the front outer diameter and the rear outer diameter of the cylindrical structure are the same, and the inner diameter of the front end of the hollow cavity is smaller than that of the rear end of the hollow cavity; the inner diameter of the rear end of the hollow cavity is larger than the outer diameter of the front end of the traction rod, and the inner diameter of the front end of the hollow cavity is smaller than the outer diameter of the front end of the traction rod; the outer wedge block comprises a plurality of discrete single wedges, and the single wedges are spliced to form the outer wedge block.

The outer wedge block comprises three separate single wedge blocks, and the three single wedge blocks are spliced to form the outer wedge block; the outer wedge block is made of iron.

Each single wedge block comprises two splicing surfaces, an inner arc-shaped wall, an outer arc-shaped wall, a front end surface and a rear end surface;

the splicing surface of each single wedge block is parallel to the axial direction of the outer wedge block, and the front end surface and the rear end surface are vertical to the axial direction of the outer wedge block; the splicing surfaces of the adjacent single wedge blocks are matched with each other.

The outer arc-shaped wall is provided with a plurality of elastic anti-skidding bulges.

The two opposite splicing surfaces are also provided with corresponding grooves, return springs are arranged in the grooves, and two ends of each return spring are respectively connected with the two corresponding grooves.

The traction rod front end axle center position is provided with the thread groove, and the couple bolt rear end is provided with the external screw thread, and the couple bolt passes through threaded connection with the traction rod.

The hook bolt is characterized in that a limiting groove is further formed in one side of the threaded groove, a mounting groove is formed in the hook bolt, a limiting elastic block is arranged in the mounting groove, and a compressed limiting spring is arranged between the limiting elastic block and the mounting groove.

The utility model discloses produced beneficial effect for prior art does:

(1) the operation is simple, and ordinary construction operators can use and operate the system after being guided and explained by technicians without professional training.

(2) The device is flexible to use, simple in structure and small in size, does not occupy too much space when being used for pipeline traction in a space-limited environment, and is used after the pipeline traction is in place

The simple hand tool can be taken out.

(3) The product protection, this device need not to weld traction part such as earrings, couple on the pipeline in the use, does not have the destruction to pipeline itself, and especially the alloy pipeline protection effect to the hardness is lower is more obvious.

(4) The device has the advantages of good popularization, simple structure and strong universality, is not limited to pipeline traction operation in a limited space, and can be used in general pipeline construction operation.

Drawings

Fig. 1 is a schematic structural diagram of an apparatus according to embodiment 1 of the present invention.

Fig. 2 is the schematic view of the explosion structure of the outer wedge block in embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of an outer wedge block according to embodiment 1 of the present invention.

Fig. 4 is a schematic view of a traction rod structure according to embodiment 3 of the present invention.

Fig. 5 is a schematic view of a hook bolt structure according to embodiment 3 of the present invention.

Fig. 6 is a schematic cross-sectional view of the device of embodiment 1 of the present invention at the installation stage.

Fig. 7 is a schematic cross-sectional view of the device of embodiment 1 of the present invention at the stage of use.

Fig. 8 is a schematic cross-sectional view of the device in the removal stage according to embodiment 1 of the present invention.

Fig. 9 is a schematic structural view of an apparatus according to embodiment 3 of the present invention.

Fig. 10 is a schematic structural view of an outer wedge and a return spring of a device according to embodiment 2 of the present invention.

The device comprises an outer wedge block 1, a traction rod 2, a hook bolt 3, a hollow cavity 4, a single wedge block 5, a thread groove 6, a limiting groove 7, a mounting groove 8, a limiting elastic block 9, a limiting spring 10, an external thread 31, a splicing surface 51, an inner arc-shaped wall 52, an outer arc-shaped wall 53, a front end surface 54, a rear end surface 55, a groove 57 and a return spring 58.

Detailed Description

In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.

Example 1

As shown in fig. 1-3,6-8,

a long pipeline traction device in a limited space comprises a traction rod 2, a hook bolt 3 and an outer wedge block 1, wherein the traction rod 2 is of a tapered columnar structure, and the outer diameter of the front end of the traction rod 2 is smaller than that of the rear end; the front end of the traction rod 2 is connected with a hook bolt 3, and an outer wedge block 1 is detachably arranged outside the traction rod 2; the outer wedge block 1 is of a cylindrical structure, a hollow cavity 4 axially penetrates through the inner portion of the outer wedge block, and the hollow cavity is in a round table shape and is equal in height with the cylinder at the same bottom. The front and rear outer diameters of the cylindrical structures are the same, and the inner diameter of the front end of the hollow cavity 4 is smaller than that of the rear end; the inner diameter of the rear end of the hollow cavity 4 is larger than the outer diameter of the front end of the traction rod 2, and the inner diameter of the front end of the hollow cavity 4 is smaller than the outer diameter of the front end of the traction rod 2; the outer wedge 1 comprises a plurality of discrete single wedges 5 which are spliced to form the outer wedge.

The outer wedge block 1 comprises three separate single wedge blocks 5, and the three single wedge blocks 5 are spliced to form the outer wedge block; each single wedge 5 comprises two splice faces 51, an inner arcuate wall 52, an outer arcuate wall 53, a front face 54 and a rear face 55. The splicing surface 51 of each single wedge 5 is parallel to the axial direction of the outer wedge 1, and the front end surface 54 and the rear end surface 55 are perpendicular to the axial direction of the outer wedge. Each single wedge block component is formed by uniformly cutting a hollow cylindrical component along the radius of the bottom surface of the cylinder, the three components are assembled along the cutting surface to form a hollow cylindrical structure, and the components are mutually independent and are not fixedly connected; the hollow cavity of the cylinder is in a round table shape.

The outer arcuate wall 53 may also be provided with a plurality of rubber resilient cleats.

The traction rod is of a round table-shaped structure and is arranged in the hollow cavity of the cylinder, and the center of the upper front end surface of the round table is provided with a threaded groove inwards along the height direction; the shaft center position of the front end of the traction rod 2 is provided with a thread groove 6, the rear end of the hook bolt 3 is provided with an external thread 31, and the hook bolt 3 is in threaded connection with the traction rod 2. The round table-shaped traction rod is basically the same as the shape and the size of the inner hollow cavity of the cylinder, and is coaxially arranged with the hollow cylinder.

Example 2

In the device according to embodiment 1, two opposite splicing surfaces 51 may further have corresponding grooves 57, in which a return spring 58 is disposed, and two ends of the return spring are respectively connected to the two corresponding grooves, as shown in fig. 10. The traction rod can ensure the relative connection of the three divided wedges, and the relative positions of the three wedges are constantly spliced into a whole even if the traction rod is taken out, thereby being beneficial to storage and preventing loss.

Example 3

In the device of embodiment 1, a limiting groove 7 may be further disposed on one side of the thread groove 6, an installation groove 8 is disposed on the hook bolt 3, a limiting elastic block 9 is disposed in the installation groove, and a compressed limiting spring 10 is disposed between the limiting elastic block and the installation groove, as shown in fig. 4, 5, and 9.

In actual use, the limiting elastic block is pressed down, the hook bolt 3 is rotatably installed at a proper position in a threaded groove of the traction rod through threads, the limiting elastic block is loosened, the limiting elastic block is clamped in the limiting groove, the hook bolt 3 is stably connected with the traction rod 2, and the hook bolt is not easy to loosen in the traction process, so that traction faults are caused.

In actual use, the hook bolt is pulled to drive the traction rod to move forwards, the traction rod extrudes the special-shaped wedge, friction force between the wedge and the inner wall of the pipeline is further increased, the long pipeline is driven to move forwards, and the traction effect is achieved.

The size of the traction device is comprehensively determined according to the factors such as the diameter, the wall thickness, the length, the weight, the number of the support rings and the like of the pipeline to be dragged.

Aiming at alloy pipelines with lower hardness and easy deformation, the traditional traction method is often used for damaging the pipelines, and the device can effectively reduce the damage to the pipelines in the traction process due to the difference of mechanical principles.

The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the designated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Claims

1. The long pipeline traction device in the limited space is characterized by comprising a traction rod (2), a hook bolt (3) and an outer wedge block (1), wherein the traction rod (2) is of a conical columnar structure, and the outer diameter of the front end of the traction rod (2) is smaller than that of the rear end; the front end of the traction rod (2) is connected with a hook bolt (3), and an outer wedge block (1) is detachably arranged outside the traction rod (2); the outer wedge block (1) is of a cylindrical structure, a hollow cavity (4) axially penetrates through the inner part of the outer wedge block, the front outer diameter and the rear outer diameter of the cylindrical structure are the same, and the inner diameter of the front end of the hollow cavity (4) is smaller than that of the rear end of the hollow cavity; the inner diameter of the rear end of the hollow cavity (4) is larger than the outer diameter of the front end of the traction rod (2), and the inner diameter of the front end of the hollow cavity (4) is smaller than the outer diameter of the front end of the traction rod (2); the outer wedge block (1) comprises a plurality of discrete single wedge blocks (5) which are spliced to form the outer wedge block.

2. A long pipe pulling apparatus in a confined space as claimed in claim 1, wherein the outer wedge (1) comprises three separate single wedges (5), and the three single wedges (5) are spliced to form the outer wedge.

3. The long pipe pulling apparatus in a confined space as defined by claim 1, wherein said outer wedges are made of iron.

4. A long pipe pull in a confined space as claimed in claim 1 wherein each single wedge (5) comprises two splice faces (51), an inner arcuate wall (52), an outer arcuate wall (53), a front face (54) and a rear face (55); the splicing surface (51) of each single wedge block (5) is parallel to the axial direction of the outer wedge block (1), and the front end surface (54) and the rear end surface (55) are vertical to the axial direction of the outer wedge block.

5. The long pipeline traction device in the limited space according to claim 1, wherein two opposite splicing surfaces (51) are further provided with corresponding grooves (57), a return spring (58) is arranged in each groove, and two ends of each return spring are respectively connected with the two corresponding grooves (57).

6. The long pipeline traction device in the limited space according to claim 1, wherein a threaded groove (6) is formed in the axial center of the front end of the traction rod (2), an external thread is formed at the rear end of the hook bolt (3), and the hook bolt (3) is in threaded connection with the traction rod (2).

7. The long pipeline traction device in the limited space according to claim 6, wherein one side of the thread groove (6) is further provided with a limiting groove (7), the hook bolt (3) is provided with a mounting groove (8), a limiting elastic block (9) is arranged in the mounting groove, and a compressed limiting spring (10) is arranged between the limiting elastic block and the mounting groove.