CN115028056A

CN115028056A - Lifting device is assisted to water pipeline

Info

Publication number: CN115028056A
Application number: CN202210800106.4A
Authority: CN
Inventors: 王石; 郑国幸; 吴宝焕
Original assignee: CSCEC Strait Construction and Development Co Ltd
Current assignee: CSCEC Strait Construction and Development Co Ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-09-09

Abstract

The invention relates to the technical field of pipeline lifting devices, in particular to an auxiliary lifting device for a water pipeline, which comprises a door-shaped vertical frame, a pulling-up structure and a pipeline clamping structure, wherein the bottoms of a left vertical rod and a right vertical rod of the door-shaped vertical frame are provided with supporting structures; the pulling-up structure is arranged at the middle section of the door-shaped vertical frame and is connected with the pipeline clamping structure through a lifting rope; the pipe clamping structure comprises a first fork clamp arm and a second fork clamp arm; through holes are formed in the tops of the first fork clamp arm and the second fork clamp arm respectively, and the lifting rope penetrates through the through holes to be connected with the first fork clamp arm and the second fork clamp arm respectively; the middle parts of the first fork clamp arm and the second fork clamp arm are hinged through a pin shaft to form a movable scissors structure; the lower sections of the first fork clamp arm and the second fork clamp arm which are positioned at the lower end of the pin shaft are surrounded to form an arc-shaped embracing part; the pipeline lifting device is reasonable in design, and can play a role in improving stability and saving labor force during lifting operation of a pipeline through the design of the pipeline clamping structure.

Description

Lifting device is assisted to water pipeline

Technical Field

The invention relates to the technical field of pipeline lifting devices, in particular to an auxiliary lifting device for a water pipeline.

Background

When the water supply and drainage pipeline is fixed on a supporting foundation, a crane is often needed to be used for placing the water supply and drainage pipeline with large size and heavy mass into a pipeline foundation pit, and the method is complex in construction and high in difficulty; for the small-size and light-weight water supply and drainage pipeline, a plurality of workers are mainly matched with a simple hand-operated hoist to lift and then transfer the water supply and drainage pipeline into a pipeline foundation pit.

Chinese patent No. CN212928978U discloses a municipal pipeline laying device, which comprises a first transverse plate which is bilaterally symmetrical, wherein two ends of the bottom end surface of the first transverse plate are respectively provided with a double-brake caster wheel, the upper part of the first transverse plate is connected with a second transverse plate through a support rod, the top end surface of the second transverse plate is respectively provided with a sliding chute which is symmetrical front and back, and the outer side wall of the second transverse plate is respectively provided with a rectangular through hole which extends into the sliding chute; the connecting plates which are symmetrical in the front and back are arranged on the top end face of the second transverse plate, the centers of the connecting plates are connected with rectangular frames, and wire reels are rotatably connected in the rectangular frames through rotating shafts. This current patent is carrying out the in-process that lifts up to the pipeline, will bind the lifting and lay on the pipeline just through twining the lifting rope, consequently can not fine solution practice thrift the labour, reduce the problem of work load to there is not enough problems of steadiness such as lifting rope fracture, pipeline landing easily.

Disclosure of Invention

In view of the above, the invention provides an auxiliary lifting device for a water pipeline, which comprises a door-shaped vertical frame, a pulling-up structure and a pipeline clamping structure, wherein supporting structures are arranged at the bottoms of a left vertical rod and a right vertical rod of the door-shaped vertical frame; the pulling-up structure is arranged at the middle section of the door-shaped vertical frame and is connected with the pipeline clamping structure through a lifting rope; the pipe clamping structure comprises a first fork clamp arm and a second fork clamp arm; through holes are formed in the tops of the first fork clamp arm and the second fork clamp arm respectively, and the lifting rope penetrates through the through holes to be connected with the first fork clamp arm and the second fork clamp arm respectively; the middle parts of the first fork clamp arm and the second fork clamp arm are hinged through a pin shaft to form a movable scissors structure; the lower sections of the first fork clamp arm and the second fork clamp arm which are positioned at the lower end of the pin shaft are surrounded to form an arc-shaped embracing portion, and the inner wall of the arc-shaped embracing portion is provided with a sliding wall.

The lifting structure comprises a pulley guide rail, a movable pulley and a chain block, wherein the pulley guide rail is horizontally and fixedly arranged on a cross rod of the door-shaped vertical frame; the movable pulley is arranged on the pulley guide rail and is connected with the pulley guide rail in a sliding manner, and the top of the inverted chain is connected with the movable pulley through a lifting hook; the lifting rope is connected with a lifting hook at the bottom of the chain block.

The first fork clamp arm and the second fork clamp arm are located at the upper end of the pin shaft, and the upper sections of the first fork clamp arm and the second fork clamp arm are connected with each other through an extension spring.

Wherein the tail ends of the first and second forceps arms have guide openings opening in opposite directions.

The supporting structure is a bottom supporting rod which is perpendicular to the left upright rod and the right upright rod of the door-shaped vertical frame in the front-back direction, and an inclined supporting rod which is connected between the front end and the rear end of the bottom supporting rod and the side walls of the upright rods.

Wherein, the front and back both ends bottom of bottom stay bar respectively is provided with the dual-brake truckle.

The lower end of the cross rod of the door-shaped vertical frame is vertically provided with a guide rail mounting seat; the pulley guide rail is horizontally fixed on the guide rail mounting seat.

Compared with the prior art, the invention has the following beneficial effects:

according to the movable scissors structure formed by the first fork arm and the second fork arm, the upper end and the lower end are closed or opened synchronously, when the pipeline is held and lifted, the first fork arm and the second fork arm are closed and clamped tightly due to the fact that the lifting rope is stressed to generate a reaction pulling force, the pipeline is held tightly, the movable scissors structure has the advantages that the pipeline does not need to be wound around the bottom of the pipeline, the clamping force is increased along with the weight of the pipeline, the lifting stability is guaranteed, the manpower loss is reduced, and the resource waste of a crane is reduced.

Through setting up movable pulley and pulley guide rail, realize the horizontal migration of pipeline after lifting up, can in time adjust after the pipeline dislocation, and then realize the sidesway of whole root pipeline and the adjustment of tilt state.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a pipe clamping structure according to the present invention;

FIG. 3 is a schematic view of a door-type stand support structure according to the present invention;

in the drawings, the reference numbers indicate the following list of parts:

1-door type vertical frame, 2-pulling-up structure, 3-pipeline clamping structure, 4-double-brake caster, 11-supporting structure, 12-bottom supporting rod, 13-inclined supporting rod, 21-pulley guide rail, 22-movable pulley, 23-inverted chain, 24-guide rail mounting seat, 31-first fork clamp arm, 32-second fork clamp arm, 33-pin shaft, 34-arc holding part, 35-lifting rope, 36-guiding opening and 37-extension spring

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution:

a water pipeline auxiliary lifting device comprises a door-shaped vertical frame 1, a pulling-up structure 2 and a pipeline clamping structure 3, wherein supporting structures 11 are arranged at the bottoms of a left vertical rod and a right vertical rod of the door-shaped vertical frame 1; the pulling-up structure 2 is arranged at the middle section of the door-shaped vertical frame 1, and the pulling-up structure 2 is connected with the pipeline clamping structure 3 through a lifting rope 35; the pipe gripping arrangement 3 comprises a first and a

second prong arm

31, 32; through holes are formed in the tops of the first fork clamp arm 31 and the second fork clamp arm 32 respectively, and the lifting rope 35 penetrates through the through holes to be connected with the first fork clamp arm 31 and the second fork clamp arm 32 respectively; the middle parts of the first fork arm 31 and the second fork arm 32 are hinged through a pin shaft 33 to form a movable scissors structure; the lower sections of the first and

second arms

31 and 32 at the lower end of the pin 33 surround to form an arc-shaped embracing portion 34.

Working principle embodiment:

in actual operation, the arc-shaped embracing portion 34 of the pipeline clamping structure 3 is opened, a pipeline is clamped into the middle of the arc-shaped embracing portion 34, the chain block 23 is manually operated to be lifted, the first fork arm 31 and the second fork arm 32 are tightened inwards by utilizing the pulling force formed by the gravity action of the lifting rope 37 and a lower component along the direction of the lifting rope, the first fork arm 31 and the second fork arm 32 are mutually tightened due to the characteristic that the pulling forces at two sides are converged, and when the pipeline is clamped and lifted, the reaction pulling force on the first fork arm 31 and the second fork arm 32 is increased due to more stress of the lifting rope, so that sufficient clamping force is provided for clamping the pipeline.

By connecting the extension spring 37 between the upper ends of the first and

second arms

31, 32, the first and

second arms

31, 32 can be clamped inward under natural conditions, and when the lifting rope is not sufficiently stressed at the beginning of lifting, the pipeline can be prevented from falling due to loose movement of the components.

By arranging the guide port 36 with the port opened outwards at the tail end of the first and second fork arms, when the first and

second fork arms

31 and 32 are clamped on the outer wall of the pipeline, the lower ends of the first and

second fork arms

31 and 32 are directly pressed against the outer wall of the pipeline by virtue of the opening guide function of the guide port 36, so that the pipeline can be stressed to open naturally.

Wherein, in order to compromise structural strength and portability, the rod piece structure of door type grudging post can adopt hollow square steel material to make. The lifting rope is a steel cable lifting rope with certain flexibility. Through the arrangement of the dual-brake caster in the process of moving the invention

In the description of the invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like are used in the orientations and positional relationships indicated in the drawings only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the terms in the invention is understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A water pipeline auxiliary lifting device comprises a door-shaped vertical frame (1), a pulling-up structure (2) and a pipeline clamping structure (3), and is characterized in that the bottoms of a left vertical rod and a right vertical rod of the door-shaped vertical frame (1) are provided with supporting structures (11); the pulling-up structure (2) is arranged at the middle section of the door-shaped vertical frame (1), and the pulling-up structure (2) is connected with the pipeline clamping structure (3) through a lifting rope (35); the pipe gripping structure (3) comprises a first and a second prong arm (31, 32); through holes are formed in the tops of the first fork arm (31) and the second fork arm (32), and a lifting rope (35) penetrates through the through holes to be connected with the first fork arm (31) and the second fork arm (32) respectively; the middle parts of the first fork arm (31) and the second fork arm (32) are hinged through a pin shaft (33) to form a movable scissors structure; the lower sections of the first fork arm (31) and the second fork arm (32) which are positioned at the lower end of the pin shaft (33) are encircled to form an arc-shaped embracing portion (34), and a sliding wall is arranged on the inner wall of the arc-shaped embracing portion (34).

2. A water service pipe auxiliary lifting device as defined in claim 1, wherein said pulling structure (2) comprises a pulley guide (21), a movable pulley (22) and a chain block (23), said pulley guide (21) being horizontally and fixedly mounted on the cross bar of the door-type stand (1); the movable pulley (22) is arranged on the pulley guide rail (21), the movable pulley (22) is connected with the pulley guide rail (21) in a sliding manner, and the top of the inverted chain (23) is connected with the movable pulley (22) through a lifting hook; the lifting rope (35) is connected with a lifting hook at the bottom of the chain block (23).

3. A water pipe auxiliary lifting device according to claim 1, characterised in that the upper sections of the first and second clamping arms (31, 32) at the upper end of the pin (33) are connected to each other by means of a tension spring (37).

4. A water service pipe auxiliary lifting device as claimed in claim 1, characterised in that the tail ends of said first and second tong arms (31, 32) have guide openings (36) opening in opposite directions.

5. A water pipe auxiliary lifting device as defined in claim 1, characterized in that said supporting structure (11) is a bottom stay (12) perpendicular to the left and right uprights of the door-type stand (1) in the front-rear direction and a diagonal stay (13) connecting the front and rear ends of the bottom stay (12) to the side walls of the uprights.

6. A water pipe auxiliary lifting device as claimed in claim 5, wherein the bottom of the front and rear ends of the bottom stay (12) are provided with dual-brake casters (4).

7. A water service pipe auxiliary lifting device as defined in claim 2, wherein a guide rail mounting seat (24) is vertically provided at the lower end of the cross bar of said gate-type stand (1); the pulley guide rail (21) is horizontally fixed on the guide rail mounting seat (24).