CN113511613A

CN113511613A - Large pipeline secondary carrying shifter

Info

Publication number: CN113511613A
Application number: CN202110844447.7A
Authority: CN
Inventors: 凌世俊; 张健; 冉恒滔; 严志彬
Original assignee: Zhejiang Construction Equipment Installation Co ltd
Current assignee: Zhejiang Construction Equipment Installation Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2021-10-19
Anticipated expiration: 2041-07-26
Also published as: CN113511613B

Abstract

The invention discloses a large pipeline secondary carrying shifter, which relates to the technical field of pipeline carrying and comprises a vehicle body, a shovel plate, a driving piece, a jack and a control handle, wherein the driving piece is used for driving telescopic shaft pieces; the piston rod of jack links to each other with the shovel board is fixed, the drive footboard spare of jack extends towards the direction of control handle, just the top of telescopic shaft spare is located in the rotation of shovel board. When the pipeline diameter grow of secondary transport, through the drive driving piece, and then the extension of drive telescopic shaft spare, the corresponding increase in interval between the interval of two sets of roof beams framves and the interval between two sets of shovel boards, stability when finally realizing the big pipeline transportation of adaptation. This application has the effect that improves pipeline handling efficiency.

Description

Large pipeline secondary carrying shifter

Technical Field

The invention relates to the technical field of pipeline transportation, in particular to a large pipeline secondary transportation shifter.

Background

The pipeline installation belongs to the construction equipment installation engineering, and is generally carried out after the construction of a main building body is completed. During pipeline installation, a tower crane is generally utilized to hoist a large pipeline from a stockpile site, and then the pipeline is hoisted to a specified floor. The pipeline hoisted to a specified floor also needs to be transported secondarily to a specified installation destination, and the transportation process is usually carried by a forklift.

The large pipeline refers to a pipeline with a diameter larger than the distance between two shovel plates of a traditional forklift. Two shovel board intervals of traditional fork truck are fixed, because two shovel board intervals of traditional fork truck are fixed, so traditional fork truck is difficult to adapt to the big pipeline, and then unstable when making the big pipeline transportation, leads to the pipeline transport inefficiency.

Disclosure of Invention

Stability when in order to improve big pipeline transportation, and then improve pipeline transport efficiency, this application provides a big pipeline secondary transport shifter.

A large pipeline secondary carrying shifter comprises a shoveling and collecting assembly and a driving assembly for driving the shoveling and collecting assembly;

the shovel collecting assembly comprises a vehicle body and a shovel plate, the vehicle body comprises two groups of beam frames which are arranged at intervals relatively, two groups of telescopic shaft pieces which are arranged at intervals relatively and idler wheels which are rotatably arranged at two ends of each group of telescopic shaft piece, and the telescopic shaft pieces are respectively and sequentially rotatably arranged on the corresponding beam frames in a penetrating mode;

the drive assembly includes the driving piece that is used for driving telescopic shaft spare, is located the jack on the roof beam structure and is used for controlling the control handle that the automobile body travel, the piston rod and the shovel board of jack are fixed to be linked to each other, the drive pedal piece of jack extends towards the direction of control handle, just the top of telescopic shaft spare is located in the shovel board rotation.

By adopting the technical scheme, the wood balk is placed in the floor, and the tower crane lifts the pipeline on the top of the wood balk, so that the pipeline is lifted. Operating personnel is through controlling control handle, and the control automobile body traveles to the pipeline department of stacking for the shovel board advances to the pipeline below, tramples the footboard of jack, and then the piston rod of drive jack lifts the shovel board, and the shovel board rotates and then drives the pipeline and follow its axial direction and move at the shovel board upper surface, stops lifting the jack when the pipeline is stable, later controls control handle, and the control automobile body traveles to appointed installation destination, and the automobile body is driven the jack while retreating, makes the shovel board transfer the pipeline. When the pipeline diameter grow of secondary transport, through the drive driving piece, and then the extension of drive telescopic shaft spare, telescopic shaft spare extension makes the corresponding increase of interval between the interval of two sets of roof beams structures and two sets of shovel boards to realize adapting to pipeline diameter's grow, stability when improving big pipeline transportation, thereby make this scheme have the advantage that improves pipeline transport efficiency.

Optionally, the telescopic shaft piece comprises a spline shaft and two spline sleeves, the spline shaft is respectively coaxially arranged and inserted with the spline sleeves in a matching manner, and the opposite ends of the two spline sleeves are respectively rotatably arranged in the two groups of beam frames in a penetrating manner;

the driving piece comprises a connecting beam and a hydraulic rod, the connecting beam is respectively and fixedly connected with the two oppositely arranged spline sleeves, and the hydraulic rod is respectively and fixedly connected with the connecting beam and the beam frame.

Through adopting above-mentioned technical scheme, when the interval adaptation pipeline diameter changes between two sets of roof beams frames of needs control, hydraulic stem drive is the beam of tying, it drives the spline housing axial displacement of two relative other two relative arrangements of spline housing wherein to tie the beam, and then make interval adaptation pipeline diameter grow between the shovel board of two sets of relative interval arrangements, and a integral key shaft not only can go through the gyro wheel drive roof beam frame with the cooperation of two spline housings, and can realize extending along the axial direction of integral key shaft, in order to realize making the interval between the shovel board increase.

Optionally, a threaded rod is arranged at the end of the spline shaft, a sealing barrel is arranged on the peripheral wall of the threaded rod, the opening end of the sealing barrel abuts against the port of the spline sleeve tightly, the inner wall of the sealing barrel is in threaded connection with the threaded rod, and a hexagonal groove is formed in the outer wall of the sealing end of the sealing barrel.

Through adopting above-mentioned technical scheme, utilize the spanner through drive hexagonal groove cell wall, and then make a section of thick bamboo inner wall and threaded rod threaded connection seal, the open end that until a section of thick bamboo seals offsets with the end wall of spline housing, realizes protecting the spline housing port on the one hand, and on the other hand carries out axial spacing to the integral key shaft under the user state, prevents the integral key shaft relative spline housing axial displacement under the exogenic action.

Optionally, the top of the shovel plate is provided with a blocking block, and a placing arc surface is formed between the side wall of the blocking block and the top of the shovel plate.

Through adopting above-mentioned technical scheme, place the radian that the cambered surface can adapt to the pipe box periphery wall, and then improve the stability in the pipeline transportation to and place the cambered surface and can prevent pipeline radial displacement, and control handle can control pipeline axial direction's stability, thereby stability when further improving pipeline transportation.

Optionally, there are two jack corresponding shovel plates, and a linkage rod is arranged between the driving pedal plates of the two jacks, and the linkage rod can stretch along the axial direction adaptability.

Through adopting above-mentioned technical scheme, two jacks can change along with the interval change between the shovel board, and the linkage member improves the wholeness between two jacks on the one hand, tramples the drive footboard piece of one of them jack when operating personnel, and then when the corresponding shovel board of drive rotates, and the drive footboard piece linkage of another jack under the linkage member effect, and then the rotation of the corresponding shovel board of drive of another jack to conveniently control two shovel boards and shovel in coordination and receive the pipeline.

Optionally, the linkage rod piece comprises a sliding rod and a sliding cylinder, the sliding rod is connected to the inner wall of the sliding cylinder in a sliding mode, lantern rings are respectively arranged at the end portions, back to back, of the sliding rod and the sliding cylinder, and the two lantern rings are respectively sleeved on the corresponding driving shaft rods.

Through adopting above-mentioned technical scheme, under the axial exogenic action, the slide bar can be relative sliding cylinder axial displacement, conveniently adapts to the change of interval between two jacks, and the biography power system that slide bar, sliding cylinder and two lantern rings formed has limiting displacement to the drive axostylus axostyle, and then improves the wholeness ability of two jacks.

Optionally, one end of the control handle is fixedly connected with one group of beam frames, and a matching piece matched with the spline housing for linkage is arranged at the other end of the control handle.

Through adopting above-mentioned technical scheme, because the interval can change between two roof beams framves, so control handle one end is fixed rather than a roof beam structure to the automobile body that controls is gone in the realization, and is continuous with the control handle other end through fitting piece and spline housing cooperation, and then conveniently changes along with the change of interval between the roof beam structure.

Optionally, the fitting piece includes dovetail groove body, L type dovetail plate and ball bearing, dovetail groove body is located on the control handle along the axial direction of spline housing, L type dovetail plate passes through ball bearing and links to each other with the spline housing.

Through adopting above-mentioned technical scheme, the dovetail groove body can lead to L type dovetail plate, spacing and transmission load's effect, when L type dovetail plate cooperation roof beam structure interval changes, L type dovetail plate is along the axial direction motion of dovetail groove body, when control handle promotes or stimulates the automobile body, control handle's drive power can loop through the dovetail groove body, L type dovetail plate and ball bearing radial transmission give the spline housing, and then drive telescopic shaft spare and roof beam structure in proper order and travel, thereby strengthen connection performance and wholeness ability between control handle and the automobile body.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the pipeline is conveniently shoveled and collected by using the jack and the shovel plates, and when the diameter of the pipeline for secondary transportation is increased, the driving piece drives the telescopic shaft piece to extend, so that the distance between the two groups of shovel plates is correspondingly increased, and the distance between the two shovel plates is adaptive to the large pipeline;

2. the hydraulic rod drives the connecting beam, and the connecting beam drives two of the spline sleeves which are oppositely arranged to axially displace relative to the other two spline sleeves, so that the distance between two groups of beam frames which are oppositely arranged at intervals is increased;

3. the inner wall of the sealing barrel is in threaded connection with the threaded rod through driving the wall of the hexagonal groove by a wrench until the open end of the sealing barrel is abutted against the end wall of the spline sleeve, so that the port of the spline sleeve and the end part of the spline shaft are protected.

Drawings

FIG. 1 is a schematic view of the structure of the whole and the pipeline of the embodiment of the present application;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is an enlarged schematic view of the structure at B in fig. 1.

Description of reference numerals: 1. a vehicle body; 11. a beam frame; 111. a low tank; 12. a telescoping shaft member; 121. a spline shaft; 122. a spline housing; 123. a threaded rod; 124. sealing the cylinder; 1241. a hexagonal groove; 13. a roller; 2. a shovel plate; 21. a movement resistance block; 22. placing an arc surface; 23. an L-shaped support seat; 24. rotating the rod; 3. a drive member; 31. a tie-beam; 32. a hydraulic lever; 4. a jack; 41. a drive pedal; 411. a drive shaft; 412. a pedal block; 5. a control handle; 6. a linkage rod member; 61. a slide bar; 62. a slide cylinder; 63. a collar; 7. a mating member; 71. a dovetail groove body; 72. an L-shaped dovetail plate; 73. ball bearings.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses big pipeline secondary transport shifter, refer to fig. 1, fig. 2, it includes that the shovel receives subassembly and drive assembly, and the drive assembly drive shovel is received the subassembly and is shoveled and receive the pipeline, and the shovel is received the subassembly and can be adjusted adaptation pipeline diameter under the drive effect, and then the big pipeline of scraper transport.

The shovel collecting assembly comprises a vehicle body 1 and a shovel plate 2 located on the vehicle body 1, the vehicle body 1 comprises a beam frame 11, telescopic shaft parts 12 and idler wheels 13, the beam frame 11 and the telescopic shaft parts 12 are two groups, the two beam frames 11 are arranged at intervals relatively, the two telescopic shaft parts 12 are arranged at intervals relatively, the beam frame 11 is arranged vertically relatively, and each telescopic shaft part 12 rotates in sequence to penetrate out one side of the two beam frames 11 back to back.

Any one group of telescopic shaft pieces 12 comprises a spline shaft 121 and spline sleeves 122, one spline shaft 121 and two spline sleeves 122 are arranged, the end parts, opposite to each other, of the spline sleeves 122 sequentially rotate and penetrate through the two groups of beam frames 11 arranged opposite to each other, and the opposite end parts of the two spline sleeves 122 are mutually abutted; spline shaft 121 slides respectively and inserts and locate corresponding spline housing 122 in, spline shaft 121 and the mutual interference fit of spline housing 122 inner wall, and the tip of spline shaft 121 is in proper order with the tip parallel and level that two spline housings 122 carried on the back mutually, and spline shaft 121 both ends fixedly connected with threaded rod 123, and two threaded rod 123 are coaxial and the interval is relative with spline shaft 121.

A cavity is formed between opposite sides of the two groups of beam frames 11, four rollers 13 are arranged in a matrix, and the four rollers 13 are positioned outside the cavity; each roller 13 is coaxially corresponding to the spline housing 122, each roller 13 is fixedly connected to the outer wall of the corresponding spline housing 122, and a gap exists between each roller 13 and the beam frame 11. Under the combined action of the four rollers 13 and the two sets of telescopic shaft elements 12, the beam frame 11 runs along with the rollers 13.

Each threaded rod 123 is provided with a cartridge 124. The inner wall of the opening end of the sealing cylinder 124 is in threaded connection with the peripheral wall of the threaded rod 123, and the end wall of the opening end of the sealing cylinder 124 is abutted against the end wall of the spline sleeve 122. The sealing cylinder 124 not only protects the spline housing 122 and the spline shaft 121; moreover, because the end wall of the open end of the sealing cylinder 124 is abutted against the end wall of the spline housing 122, the displacement of the two coaxial spline housings 122 relative to the spline shaft 121 is limited, and the stability of the telescopic shaft member 12 is improved. Meanwhile, the outer wall of the closed end of each sealing cylinder 124 is provided with a hexagonal groove 1241, the axial direction of the hexagonal groove 1241 is consistent with the axial direction of the sealing cylinder 124, the sealing cylinder 124 can be conveniently screwed off or installed by using a wrench, and the sealing cylinder 124 used for a period of time is locked and reinforced.

The number of the shovel plates 2 is two, the two shovel plates 2 are respectively arranged above the beam frame 11 along the length direction of the beam frame 11, and each shovel plate 2 and the corresponding beam frame 11 are arranged in a staggered mode; the advancing end of the shovel plate 2 exceeds the advancing end of the beam frame 11, and the backward pushing end of the shovel plate 2 is positioned right above the beam frame 11. The advancing end of the shovel plate 2 is flat, so that the pipeline can be conveniently shoveled and collected, and the advancing end of the shovel plate 2 is positioned outside the beam frame 11. Fixed L type supporting seat 23 that is equipped with in 11 tops of roof beam structure near the department of advancing of shovel board 2, L type supporting seat 23 top fixedly connected with

dwang

24, 2 horizontal vertical arrangements of shovel board are relatively gone up to dwang 24, and the one end that L type supporting seat 23 was kept away from to dwang 24 rotates and wears to locate shovel board 2, and shovel board 2 can revolute the axial direction rotation of dwang 24 promptly.

The top of the shovel plate 2 is provided with a plurality of blocking and moving blocks 21, the blocking and moving blocks 21 are arranged at intervals along the length direction of the shovel plate 2, and the width direction of the shovel plate 2 is consistent with the axial direction of the rotating rod 24. Two shovel 2 top relative arrangement hinder and move the relative one side of piece 21 and be formed with and place cambered surface 22, place cambered surface 22 and extend to shovel 2 on, place cambered surface 22 and pipeline perisporium arc and suit, place cambered surface 22 and be used for supporting the pipeline on the one hand, on the other hand places cambered surface 22 and limits the pipeline along its own axial direction displacement to realize improving the stability of pipeline shoveling in-process.

The driving assembly comprises a driving part 3, a jack 4, a control handle 5, a linkage rod part 6 and a matching part 7, wherein the driving part 3 is positioned between two groups of telescopic shaft parts 12. The driving member 3 is connected with the beam 31 and the hydraulic rod 32, the connecting beam 31 is respectively fixedly sleeved on the outer walls of two of the spline housings 122 which are arranged in a non-coaxial manner and spaced, the cylinder base of the hydraulic rod 32 is fixedly connected to one of the two sets of beam mounts 11 which are opposite, the cylinder base of the hydraulic rod 32 is positioned between the other two spline housings 122 which are arranged in a non-coaxial manner and spaced, and the piston rod of the hydraulic rod 32 is horizontally and vertically and fixedly connected to the connecting beam 31. At this time, the axial direction of the hydraulic rod 32 is parallel to the axial direction of the telescopic shaft 12, and the coupling beam 31 is spaced parallel to the beam frame 11. Firstly, the sealing cylinder 124 which is arranged non-coaxially and spaced and is on the same side as the two spline housings 122 is taken out, then the hydraulic rod 32 is started, and the piston rod of the hydraulic rod 32 pushes the two spline housings 122 which are arranged non-coaxially and spaced; because the sealing cylinder 124 at one of the two ends of the spline shaft 121 is taken out and the other end is locked, the non-coaxial arrangement and the spaced two spline housings 122 pushed by the hydraulic rod 32 are axially displaced relative to the other two spline housings 122, so that the distance between the telescopic shaft 12 and the beam frame 11 can be increased, and finally the distance between the two shovel plates 2 is adapted to a large pipeline.

Referring to fig. 1 and 3, two jacks 4 are respectively located on the corresponding beam frames 11, and the control handle 5 is fixed with one group of beam frames 11. The upper surface of the beam frame 11 is provided with a low-level groove 111 from top to bottom, a base of the jack 4 is fixedly installed on the bottom wall of the low-level groove 111, the end part of a piston rod of the jack 4 is fixedly connected to the bottom of the rear pushing end of the shovel plate 2, and the jack 4 and the rotating rod 24 close to the front pushing end of the shovel plate 2 are arranged at intervals relatively. The low-level groove 111 is used for reducing the height position of a piston rod of the jack 4, and when the shovel plate 2 rotates to shovel and retract the pipeline, the upwarping amplitude of the advancing end of the shovel plate 2 is increased, so that the pipeline has a limiting effect; when the shovel plate 2 rotates to transfer the pipeline, the rotation descending range of the advancing end of the shovel plate 2 is correspondingly increased, and the pipeline is conveniently transferred.

Meanwhile, the handle of each jack 4 is fixedly connected with a driving pedal 41, each driving pedal 41 comprises a driving shaft 411 and a pedal block 412, one end of the driving shaft 411 is fixedly connected with the corresponding jack 4, the other end of the driving shaft 411 extends towards the direction of the control handle 5, the other end of the driving shaft 411 extends out of the right above the beam frame 11, and the other end of the driving shaft 411 is fixedly connected with the pedal block 412. When the pipeline is carried by the shovel, an operator drives the driving shaft rod 411 to drive the jack 4 to lift the rear pushing end of the shovel plate 2 through the pedal block 412, so that the advancing end of the shovel plate 2 enters the pipeline below conveniently, the jack 4 is driven to retract, and the advancing end of the shovel plate 2 is enabled to be tilted upwards to limit the end part of the pipeline. It is worth noting that when the blade 2 is in the horizontal position, the piston rod of the jack 4 is in the extended position; when the advancing end of the shovel plate 2 is in a downward state, the piston rod of the jack 4 continues to extend; when the advancing end of the blade 2 is in the upturned state, the piston rod of the jack 4 is in the retracted state.

The linkage rod piece 6 comprises two sliding rods 61, two sliding cylinders 62 and two lantern rings 63, the sliding rods 61 and the sliding cylinders 62 are arranged coaxially, the lantern rings 63 are fixedly connected to the end faces, opposite to each other, of the sliding rods 61 and the sliding cylinders 62 respectively, and the peripheral walls of the sliding rods 61 and the inner walls of the sliding cylinders 62 are always in sliding connection. The inner walls of the two lantern rings 63 are fixedly sleeved on the peripheral walls of the corresponding driving shaft rods 411, so that the driving pedals 41 of the two jacks 4 are linked, when an operator steps on one of the pedal blocks 412, the other pedal block 412 is also linked, and the operator can conveniently control the jacks 4 to lift the pipeline.

Fitting piece 7 includes dovetail groove body 71, L type dovetail plate 72 and ball bearing 73, dovetail groove body 71 and telescopic shaft 12 parallel relatively and the interval arrangement, dovetail groove body 71 fixed connection in one side that control handle 5 deviates from telescopic shaft 12, and the extending direction of dovetail groove body 71's spline groove is parallel with telescopic shaft 12's axial direction. One end of the L-shaped dovetail plate 72 is slidably embedded in the dovetail groove of the dovetail groove body 71, the other end of the L-shaped dovetail plate 72 is fixedly connected to the outer ring outer wall of the ball bearing 73, and the inner ring inner wall of the ball bearing 73 is in interference fit with the outer wall of the spline housing 122 close to the control handle 5. Meanwhile, the ball bearing 73 is spaced from the coupling beam 31, and the ball bearing 73 is seated on a spline housing 122 fixedly coupled to the coupling beam 31. Control handle 5 only links to each other with one of them a set of roof beam frame 11, and along with the interval increase between two sets of roof beam frames 11, control handle 5 is then difficult to control automobile body 1, and links to each other with telescopic shaft 12 through dovetail groove body 71, L type dovetail plate 72 and ball bearing 73, and then improves control handle 5 and automobile body 1's wholeness to realize that control handle 5 controls whole automobile body 1 easily.

The implementation principle of the embodiment of the application is as follows:

when the large pipeline is shoveled, the vehicle body 1 is driven to run to the pipeline hoisting ground through the control handle 5. Starting the jack 4, so that the jack 4 lifts the rear pushing end of the shovel plate 2, and at the moment, the advancing end of the jack 4 rotates and descends to extend into the lower part of the pipeline; when the pipeline is integrally positioned on the shovel plate 2, the piston rod of the jack 4 retracts until the advancing end of the shovel plate 2 upwarps to limit the end of the pipeline, and finally the pipeline is carried to a specified destination by the vehicle body 1 driven by the control handle 5.

When the interval between increase shovel board 2 for with a gyro wheel 13 liftoff even of ball bearing 73 homonymy, and then make hydraulic stem 32 drive even tie beam 31, even tie beam 31 drives the spline housing 122 axial displacement that both ends link to each other, and then make the interval between two sets of roof beams frame 11 and the interval homogeneous phase between two shovel boards 2 correspond to increase.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a big pipeline secondary transport shifter which characterized in that: the shovel comprises a shovel collecting assembly and a driving assembly for driving the shovel collecting assembly;

the shovel collecting assembly comprises a vehicle body (1) and a shovel plate (2), the vehicle body (1) comprises two groups of beam frames (11) which are arranged at intervals relatively, two groups of telescopic shaft pieces (12) which are arranged at intervals relatively and idler wheels (13) which are rotatably arranged at two ends of each group of telescopic shaft pieces (12), and the telescopic shaft pieces (12) are respectively and sequentially rotatably arranged on the corresponding beam frames (11);

the drive assembly comprises a drive piece (3) used for driving a telescopic shaft piece (12), a jack (4) located on a beam frame (11) and a control handle (5) used for controlling the running of a vehicle body (1), a piston rod of the jack (4) is fixedly connected with a shovel plate (2), a drive pedal (41) piece of the jack (4) extends towards the direction of the control handle (5), and the shovel plate (2) is rotated and arranged above the telescopic shaft piece (12).

2. The large pipe secondary handling displacer of claim 1, wherein: the telescopic shaft piece (12) comprises a spline shaft (121) and two spline sleeves (122), the spline shaft (121) is respectively coaxially arranged and inserted with the spline sleeves (122), and the opposite ends of the two spline sleeves (122) are respectively rotatably arranged on the two groups of beam frames (11);

the driving piece (3) comprises a connecting beam (31) and a hydraulic rod (32), the connecting beam (31) is fixedly connected with two oppositely arranged spline sleeves (122) respectively, and the hydraulic rod (32) is fixedly connected with the connecting beam (31) and the beam frame (11) respectively.

3. The large pipe secondary handling displacer of claim 2, wherein: the end part of the spline shaft (121) is provided with a threaded rod (123), the peripheral wall of the threaded rod (123) is provided with a sealing barrel (124), the opening end of the sealing barrel (124) is tightly abutted to the port of the spline sleeve (122), the inner wall of the sealing barrel (124) is in threaded connection with the threaded rod (123), and the outer wall of the sealing end of the sealing barrel (124) is provided with a hexagonal groove (1241).

4. The large pipe secondary handling displacer of claim 2, wherein: the top of the shovel plate (2) is provided with a blocking and moving block (21), and a placing arc surface (22) is formed between the side wall of the blocking and moving block (21) and the top of the shovel plate (2).

5. The large pipe secondary handling displacer of claim 2, wherein: jack (4) correspond shovel board (2) have two, and are equipped with linkage member (6) between drive footboard (41) piece of two jack (4), linkage member (6) can be followed its axial direction adaptability and are stretched out and drawn back.

6. The large pipe secondary handling displacer of claim 5, wherein: the driving pedal (41) of the jack (4) comprises a driving shaft rod (411) and a pedal block (412), the driving shaft rod (411) is fixedly connected to a driving handle of the jack (4) and the pedal block (412) respectively, and the pedal block (412) is close to the control handle (5).

7. The large pipe secondary handling displacer of claim 6, wherein: linkage member (6) include slide bar (61) and slide cartridge (62), slide bar (61) sliding connection is in slide cartridge (62) inner wall, slide bar (61) and slide cartridge (62) tip that carries on the back mutually are equipped with lantern ring (63) respectively, two corresponding drive axostylus axostyle (411) is located in the cover ring (63) respectively.

8. The large pipe secondary handling displacer of claim 1, wherein: one end of the control handle (5) is fixedly connected with one group of beam frames (11), and the other end of the control handle (5) is provided with a matching piece (7) which is matched with the spline sleeve (122) for linkage.

9. The large pipe secondary handling displacer of claim 8, wherein: fitting piece (7) include dovetail groove body (71), L type dovetail plate (72) and ball bearing (73), dovetail groove body (71) are located on control handle (5) along the axial direction of spline housing (122), L type dovetail plate (72) link to each other with spline housing (122) through ball bearing (73).