阅读说明：本技术 一种自由度高的隧道工程管片运输结构 (Tunnel engineering section of jurisdiction transportation structure that degree of freedom is high ) 是由 刘家奎 董和婧 董瑞刚 袁海峰 李璐 叶和军 王瑞 于 2021-10-14 设计创作，主要内容包括：本发明公开了一种自由度高的隧道工程管片运输结构,包括底板、滚轮和滑轨,所述底板上表面开设有滑槽,且滑槽内固定安装滑轨,所述滑轨上表面滑动连接滑块底部,所述滑块上表面固定安装隔板,所述底板两端固定连接限位板底部,所述限位板内侧固定连接第一气动伸缩杆一端,所述第一气动伸缩杆一侧通过第一气管连通第一气缸,所述第一气缸固定安装在限位板内侧,所述第一气动伸缩杆另一端固定连接背板一侧,所述背板另一侧固定连接最外侧隔板侧面,通过控制底座进行伸长,通过转向机构带动底板转动,使隔板与底座长度方向平行,能够对较长的管片进行运输,进入隧道,避免由于隧道宽度有限,难以进入进入隧道,使用更加灵活。(The invention discloses a tunnel engineering duct piece transportation structure with high degree of freedom, which comprises a bottom plate, rollers and a slide rail, wherein the upper surface of the bottom plate is provided with a slide groove, the slide rail is fixedly arranged in the slide groove, the upper surface of the slide rail is connected with the bottom of a slide block in a sliding manner, the upper surface of the slide block is fixedly provided with a partition plate, two ends of the bottom plate are fixedly connected with the bottom of a limiting plate, the inner side of the limiting plate is fixedly connected with one end of a first pneumatic telescopic rod, one side of the first pneumatic telescopic rod is communicated with a first air cylinder through a first air pipe, the first air cylinder is fixedly arranged at the inner side of the limiting plate, the other end of the first pneumatic telescopic rod is fixedly connected with one side of a back plate, the other side of the back plate is fixedly connected with the side surface of the outermost partition plate, the base is controlled to extend, the bottom plate is driven to rotate through a steering mechanism, so that the partition plate is parallel to the length direction of the base, and longer duct pieces can be transported, and the tunnel is prevented from being difficult to enter due to the limited width of the tunnel, so that the tunnel is more flexible to use.)

1. The utility model provides a tunnel engineering section of jurisdiction transportation structure that degree of freedom is high, includes bottom plate (20), gyro wheel (4) and slide rail (9), its characterized in that: the upper surface of the bottom plate (20) is provided with a sliding groove, a sliding rail (9) is fixedly installed in the sliding groove, the sliding rail (9) is connected with the bottom of a sliding block (10) in a sliding manner, a partition plate (11) is fixedly installed on the upper surface of the sliding block (10), the two ends of the bottom plate (20) are fixedly connected with the bottoms of limiting plates (13), one ends of first pneumatic telescopic rods (17) are fixedly connected with the inner sides of the limiting plates (13), one sides of the first pneumatic telescopic rods (17) are communicated with first air pipes (16), the first air cylinders (15) are fixedly installed on the inner sides of the limiting plates (13), the other ends of the first pneumatic telescopic rods (17) are fixedly connected with one side of a back plate (14), the other side of the back plate (14) is fixedly connected with the side surface of the outermost partition plate (11), the lower surface of the bottom plate (20) is connected with a base (2) through a steering mechanism (1), and the steering mechanism (1) comprises a motor (101), motor (101) bottom is through backup pad (102) fixed mounting at base (2) upper surface, motor (101) output axis fixed connection first bevel gear (103), first bevel gear (103) meshing connection second bevel gear (106), second bevel gear (106) inboard fixed connection revolving stage (105) top week side, revolving stage (105) bottom week side rotates connecting sleeve (104) top inboard, sleeve (104) bottom fixed connection base (2) upper surface, revolving stage (105) up end fixed connection bottom plate (20) lower surface, base (2) are including fixed plate (201) and fly leaf (202), fixed plate (201) are close to fly leaf (202) one side fixed connection picture peg (2011) one side, picture peg (2011) clearance fit inserts in the inboard slot (2021) of fly leaf (202), the lower surface of the fixed plate (201) is fixedly connected with the upper end surface of the fixed groove (204), one end of a second pneumatic telescopic rod (205) is fixedly installed on the inner side wall of the fixed groove (204), one side of the second pneumatic telescopic rod (205) is communicated with a second air cylinder (206) through a second air pipe (207), the second air cylinder (206) is fixedly installed on the lower surface of the fixed plate (201), the other end of the second pneumatic telescopic rod (205) is fixedly connected with one end of a fixed rod (203), the upper surface of the fixed rod (203) is fixedly connected with the lower surface of a movable plate (202), the bases (2) are divided into two groups, namely an upper base (21) and a lower base (22), wherein a supporting plate (102) and the lower surface of a sleeve (104) are fixedly installed on the upper surface of the fixed plate (201) and the upper surface of the movable plate (202) of the upper base (21), and the upper base (21) and the lower base (22) are connected through a lifting mechanism (3), go up fixed plate (201) in base (21) and lower base (22) and fly leaf (202) outer end fixed connection curb plate (18) top and bottom respectively, curb plate (18) opposite side fixed connection fixing base (7) top one side, fixing base (7) roof lower surface fixed connection extension board (6) upper surface, extension board (6) bottom fixed connection fixed axle (5) both ends, fixed axle (5) week side is rotated and is connected gyro wheel (4) inboard axle center.

2. The high-freedom transportation structure for the tunnel engineering pipe piece according to claim 1, characterized in that: elevating system (3) include hydraulic telescoping rod (33), dead lever (203) and fixed slot (204) lower surface in base (21) are connected to hydraulic telescoping rod (33) top fixed connection, fixed plate (201) and fly leaf (202) upper surface in base (22) under hydraulic telescoping rod (33) bottom fixed connection, oil pipe (31) intercommunication double-end pneumatic cylinder (32) are passed through to hydraulic telescoping rod (33) one side, fixed plate (201) and fly leaf (202) upper surface in base (22) under double-end pneumatic cylinder (32) fixed mounting.

3. The high-freedom transportation structure for the tunnel engineering pipe piece according to claim 1, characterized in that: the outer side of the fixed seat (7) is fixedly connected with a traction hook (19).

4. The high-freedom transportation structure for the tunnel engineering pipe piece according to claim 1, characterized in that: the middle of the bottom plate (20) is disconnected, clamping grooves which are mutually meshed are formed in the disconnected positions, and the lower surface of the bottom plate (20) is fixedly connected with the upper end face of a rotary table (105) in a group of steering mechanisms (1).

5. The high-freedom transportation structure for the tunnel engineering pipe piece according to claim 1, characterized in that: the partition plate (11) is arc-shaped, the radian of the partition plate is consistent with that of the duct piece, and rubber pads (12) are fixedly bonded to two sides of the partition plate (11).

6. The high-freedom transportation structure for the tunnel engineering pipe piece according to claim 1, characterized in that: the anti-slip lining is characterized in that a plurality of lining strips (8) are prevented from being placed between the partition plates (11), the bottoms of the lining strips (8) are fixedly connected with fixing blocks (81), two sides of each fixing block (81) are slidably connected with two sides of the sliding rail (9), and the upper surfaces of the lining strips (8) are fixedly connected with buffer strips (82).

7. The high-freedom transportation structure for the duct pieces in the tunnel engineering of claim 4, wherein: and the sliding blocks (10) close to the lower surface of the partition plate (11) in the middle of the bottom plate (20) are fixedly arranged on the peripheral sides of the sliding rails (9).

8. The high-freedom transportation structure for the tunnel engineering pipe piece according to claim 1, characterized in that: limiting grooves are formed in the periphery of the bottom of the rotary table (105), and the inner side of the top of the sleeve (104) is attached to the periphery of the top wall of the rotary table (105).

Technical Field

The invention relates to the technical field of tunnel engineering, in particular to a tunnel engineering duct piece transportation structure with high degree of freedom.

Background

The shield tunnel construction is a main method for construction of subway and underground interval structural engineering, and a communication channel is usually arranged in a subway tunnel to play roles in communication, drainage, maintenance, fire rescue and the like. The method for excavating the communication channel is to cooperate with the manual excavation of the traditional stratum reinforcement or adopt the mine method for excavation, or cooperate with

And (3) reinforcing construction by a novel freezing method. However, no matter which method is used for excavating the communication channel, the existing shield forming duct pieces of the part are required to be removed, and the communication channel is excavated to the section with the size of the communication channel through hole expansion.

Generally speaking, the shield segment is composed of 3 standard blocks, 2 adjacent blocks and 1 capping block, and all the blocks are connected longitudinally and annularly through high-strength bolts. The weight of the smallest capping block was about 1.3t and the weight of the other blocks was about 4.6t, based on the tunnel diameter 6200 mm. During tunnel construction, the segment supports the soil body, forms a main structure, and provides the counterforce of the shield machine, each block is tightly extruded in the circumferential direction and the longitudinal direction, and after synchronous grouting and secondary back grouting, concrete is condensed to enable the segment to be firmly bonded. These all make the section of jurisdiction have sufficient intensity and splendid integrality, usually do not use large-scale machines and then difficult to dismantle, and the shield tunnel is interior operating space is narrow and small, often large-scale hoisting machinery is difficult to get into or carry out the exhibition.

The section of jurisdiction that uses in present shield tunnel all is transported by the section of jurisdiction conveyer, but the section of jurisdiction rocks easily and collides when current section of jurisdiction conveyer transports, leads to the damaged disappearance even in angle of section of jurisdiction, reduces the holistic hardness of section of jurisdiction, and when corresponding some longer sections of jurisdiction of transporting simultaneously, because the tunnel width is limited, is difficult to get into the tunnel, uses not nimble enough.

Therefore, the tunnel engineering segment transportation structure with high degree of freedom is provided for solving the problems.

Disclosure of Invention

The invention aims to provide a tunnel engineering segment transportation structure with high degree of freedom, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a tunnel engineering duct piece transportation structure with high degree of freedom comprises a bottom plate, rollers and slide rails, wherein slide grooves are formed in the upper surface of the bottom plate, the slide rails are fixedly installed in the slide grooves, the upper surface of the slide rails is connected with the bottom of a slide block in a sliding manner, partition plates are fixedly installed on the upper surface of the slide block, the two ends of the bottom plate are fixedly connected with the bottoms of limiting plates, the inner sides of the limiting plates are fixedly connected with one ends of first pneumatic telescopic rods, one sides of the first pneumatic telescopic rods are communicated with a first air cylinder through a first air pipe, the first air cylinder is fixedly installed on the inner side of the limiting plate, the other ends of the first pneumatic telescopic rods are fixedly connected with one side of a back plate, the other side of the back plate is fixedly connected with the side face of an outermost partition plate, the lower surface of the bottom plate is connected with a base through a steering mechanism, the bottom of the motor is fixedly installed on the upper surface of the base through a supporting plate, and an output middle shaft of the motor is fixedly connected with a first bevel gear, the first bevel gear is meshed with the second bevel gear, the inner side of the second bevel gear is fixedly connected with the periphery of the top of the rotary table, the periphery of the bottom of the rotary table is rotatably connected with the inner side of the top of the sleeve, the bottom of the sleeve is fixedly connected with the upper surface of the base, the upper end surface of the rotary table is fixedly connected with the lower surface of the bottom plate, the base comprises a fixed plate and a movable plate, the fixed plate is close to one side of the movable plate and fixedly connected with one side of the plugboard, the plugboard is inserted into the slot on the inner side of the movable plate in a clearance fit manner, the lower surface of the fixed plate is fixedly connected with the upper end surface of the fixed groove, one end of a second pneumatic telescopic rod is fixedly arranged on the inner side wall of the fixed groove, one side of the second pneumatic telescopic rod is communicated with a second air pipe, the second air cylinder is fixedly arranged on the lower surface of the fixed plate, the other end of the second pneumatic telescopic rod is fixedly connected with one end of the fixed rod, the upper surface of the fixed rod is fixedly connected with the lower surface of the movable plate, the base is total two sets ofly, is last base and lower base respectively, and wherein fixed surface installs at the fixed plate and the fly leaf upper surface of last base under backup pad and the sleeve, go up and connect through elevating system between base and the lower base, fixed plate and fly leaf outer end in last base and the lower base are fixed connection curb plate top and bottom respectively, curb plate opposite side fixed connection fixing base top one side, fixing base roof lower fixed surface connects the extension board upper surface, extension board bottom fixed connection fixed axle both ends, fixed axle week side rotates connects the inboard axle center of gyro wheel.

Preferably, elevating system includes hydraulic telescoping rod, dead lever and fixed slot lower surface in the base are connected to hydraulic telescoping rod top fixed connection, fixed plate and fly leaf upper surface in the base under the hydraulic telescoping rod bottom fixed connection, oil pipe intercommunication double-end pneumatic cylinder is passed through to hydraulic telescoping rod one side, double-end pneumatic cylinder fixed mounting is at fixed plate and fly leaf upper surface in the base down.

Preferably, the outer side of the fixed seat is fixedly connected with a traction hook.

Preferably, the middle part of the bottom plate is disconnected, clamping grooves which are mutually meshed are arranged at the disconnected positions, and the lower surface of the bottom plate is respectively and fixedly connected with the upper end surfaces of the rotary tables in the steering mechanisms.

Preferably, the partition plate is arc-shaped, the radian of the partition plate is consistent with that of the duct piece, and rubber pads are fixedly bonded to two sides of the partition plate.

Preferably, a plurality of lining strips are prevented from being placed between the partition plates, the bottoms of the lining strips are fixedly connected with fixed blocks, two sides of each fixed block are slidably connected with two sides of the corresponding sliding rail, and the upper surfaces of the lining strips are fixedly connected with buffer strips.

Preferably, the sliding block close to the lower surface of the partition board in the middle of the bottom board is fixedly arranged on the periphery of the sliding rail.

Preferably, the periphery of the bottom of the rotary table is provided with a limiting groove, and the inner side of the top of the sleeve is attached to the periphery of the top wall of the rotary table.

Compared with the prior art, the invention has the beneficial effects that: the lining strips are clamped on two sides of the sliding rail through the fixing blocks, the duct piece is placed on the lining strips, the lining strips can support the duct piece, meanwhile, the buffer strips can play a buffer role to protect the duct piece in the transportation process, the duct piece can be fixed better through the rubber pads, the buffer role can be provided when the duct piece is clamped, the problem that the angle of the duct piece is damaged or even lost due to shaking and collision of the duct piece in the transportation process is avoided, and the overall hardness of the duct piece is reduced;

the base is controlled to extend, the bottom plate is driven to rotate through the steering mechanism, the partition plates are parallel to the length direction of the base, long duct pieces can be transported to enter a tunnel, the problem that the duct pieces are difficult to enter the tunnel due to the limited width of the tunnel is avoided, and the use is more flexible;

the height of the upper base can be adjusted through the lifting mechanism, the pipe piece can be conveniently loaded and unloaded, the height can be reduced by driving in the tunnel, the transportation is convenient, the use work is more flexible, the fixing with tools such as the existing tractor is convenient, and the traction and the movement are convenient.

Drawings

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

FIG. 2 is an enlarged view taken at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of a steering mechanism according to the present invention;

FIG. 4 is a schematic view of the lifting mechanism of the present invention;

FIG. 5 is a schematic view of a base structure according to the present invention.

In the figure: 1. a steering mechanism; 2. a base; 3. a lifting mechanism; 4. a roller; 5. a fixed shaft; 6. a support plate; 7. a fixed seat; 8. a lining strip; 9. a slide rail; 10. a slider; 11. a partition plate; 12. a rubber pad; 13. a limiting plate; 14. a back plate; 15. a first cylinder; 16. a first air pipe; 17. a first pneumatic telescopic rod; 18. a side plate; 19. a towing hook; 20. a base plate; 101. an electric motor; 102. a support plate; 103. a first bevel gear; 104. a sleeve; 105. a turntable; 106. a second bevel gear; 21. an upper base; 22. a lower base; 201. a fixing plate; 202. a movable plate; 203. fixing the rod; 204. fixing grooves; 205. a second pneumatic telescopic rod; 206. a second cylinder; 207. a second air pipe; 2011. inserting plates; 2021. a slot; 31. an oil pipe; 32. a double-headed hydraulic cylinder; 33. a hydraulic telescopic rod; 81. a fixed block; 82. a buffer strip.

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. 1-5, the present invention provides a technical solution: a tunnel engineering segment transportation structure with high degree of freedom comprises a bottom plate 20, rollers 4 and slide rails 9, wherein slide grooves are formed in the upper surface of the bottom plate 20, the slide rails 9 are fixedly installed in the slide grooves, the upper surface of each slide rail 9 is connected with the bottom of a corresponding slide block 10 in a sliding manner, each slide block 10 can drive a partition plate 11 to slide on the corresponding slide rail 9, each partition plate 11 is fixedly installed on the upper surface of each slide block 10, the two ends of the bottom plate 20 are fixedly connected with the bottom of a corresponding limiting plate 13, the inner side of each limiting plate 13 is fixedly connected with one end of a first pneumatic telescopic rod 17, one side of each first pneumatic telescopic rod 17 is communicated with a first air cylinder 15 through a first air pipe 16, the first air cylinders 15 can control the first pneumatic telescopic rods 17 to perform telescopic motion through the first air pipes 16, when the first pneumatic telescopic rods 17 perform telescopic motion, the back plates 14 can push the partition plates 11 to move, segments between the fixed partition plates 11 are tightened, movement of the segments is prevented, the segments, the first air cylinders 15 are fixedly installed on the inner sides of the limiting plates 13, the other end of the first pneumatic telescopic rod 17 is fixedly connected with one side of the back plate 14, and the back plate 14 is favorable for dispersing the stress of the first pneumatic telescopic rod 17 on the partition plate 11, so that the stress is more uniform, and the duct piece is convenient to fix;

the other side of the back plate 14 is fixedly connected with the side surface of the outermost clapboard 11, the lower surface of the bottom plate 20 is connected with the base 2 through the steering mechanism 1, the steering mechanism 1 comprises a motor 101, the bottom of the motor 101 is fixedly arranged on the upper surface of the base 2 through a support plate 102, the output center shaft of the motor 101 is fixedly connected with a first bevel gear 103, the first bevel gear 103 is meshed with a second bevel gear 106, the motor 101 can drive the first bevel gear 103 to rotate, the first bevel gear 103 can drive the second bevel gear 106 to rotate, the inner side of the second bevel gear 106 is fixedly connected with the top peripheral side of the turntable 105, the second bevel gear 106 can drive the turntable 105 to rotate, the bottom peripheral side of the turntable 105 is rotatably connected with the inner side of the top of the sleeve 104, the turntable 105 can rotate inside the sleeve 104, the bottom end of the sleeve 104 is fixedly connected with the upper surface of the base 2, the upper end of the turntable 105 is fixedly connected with the lower surface of the bottom plate 20, and the turntable 105 can drive the base 20 to rotate, adjusting the direction;

the base 2 comprises a fixed plate 201 and a movable plate 202, the fixed plate 201 is close to one side of the movable plate 202 and is fixedly connected with one side of an inserting plate 2011, the inserting plate 2011 is inserted into a slot 2021 at the inner side of the movable plate 202 in a clearance fit manner, the lower surface of the fixed plate 201 is fixedly connected with the upper end surface of a fixed groove 204, one end of a second pneumatic telescopic rod 205 is fixedly arranged on the inner side wall of the fixed groove 204, one side of the second pneumatic telescopic rod 205 is communicated with a second air cylinder 206 through a second air pipe 207, the second air cylinder 206 is fixedly arranged on the lower surface of the fixed plate 201, the other end of the second pneumatic telescopic rod 205 is fixedly connected with one end of a fixed rod 203, the second air cylinder 206 can control the second pneumatic telescopic rod 205 to perform telescopic motion through the second air pipe 206, the fixed rod 203 can be pushed to move when the second pneumatic telescopic rod 205 performs telescopic motion, the fixed rod 203 can drive the movable plate 202 to perform telescopic motion, and the fixed rods 203 and the inserting plate 2011 can provide enough supporting strength, to support the tube sheet;

the upper surface of the fixed rod 203 is fixedly connected with the lower surface of the movable plate 202, the bases 2 are divided into two groups, namely an upper base 21 and a lower base 22, wherein the lower surfaces of the supporting plate 102 and the sleeve 104 are fixedly arranged on the upper surfaces of the fixed plate 201 and the movable plate 202 of the upper base 21, the upper base 21 and the lower base 22 are connected through the lifting mechanism 3, the outer ends of the fixed plate 201 and the movable plate 202 in the upper base 21 and the lower base 22 are respectively and fixedly connected with the top and the bottom of the side plate 18, the other side of the side plate 18 is fixedly connected with one side of the top of the fixed seat 7, the lower surface of the top wall of the fixed seat 7 is fixedly connected with the upper surface of the support plate 6, the bottom of the support plate 6 is fixedly connected with two ends of the fixed shaft 5, the peripheral side of the fixed shaft 5 is rotatably connected with the inner side axis of the roller 4, and the roller 4 can rotate around the fixed shaft 5, so as to be convenient to move;

the lifting mechanism 3 comprises a hydraulic telescopic rod 33, the top end of the hydraulic telescopic rod 33 is fixedly connected with the lower surfaces of a fixed rod 203 and a fixed groove 204 in the upper base 21, the bottom end of the hydraulic telescopic rod 33 is fixedly connected with the upper surfaces of a fixed plate 201 and a movable plate 202 in the lower base 22, one side of the hydraulic telescopic rod 33 is communicated with a double-head hydraulic cylinder 32 through an oil pipe 31, the double-head hydraulic cylinder 32 is fixedly installed on the upper surfaces of the fixed plate 201 and the movable plate 202 in the lower base 22, and the double-head hydraulic cylinder 32 can control the hydraulic telescopic rod 33 to move in a telescopic mode through the oil pipe 31 to drive the upper base 21 to ascend or descend and adjust the height;

the outer side of the fixed seat 7 is fixedly connected with a traction hook 19, so that the traction movement can be conveniently carried out by tools such as the existing tractor and the like;

the middle part of the bottom plate 20 is disconnected, and mutually meshed clamping grooves are arranged at the disconnected positions, so that the bottom plate 20 can be more tightly combined, the structural strength is enhanced, the lower surface of the bottom plate 20 is respectively and fixedly connected with the upper end surfaces of the rotary tables 105 in the steering mechanisms 1, and the bottom plate 20 above the bottom plate can be respectively driven to rotate;

the partition plate 11 is arc-shaped, the radian of the partition plate is consistent with that of the duct piece, rubber pads 12 are fixedly bonded on two sides of the partition plate 11, so that the duct piece can be fixed better, a buffer effect can be provided when the duct piece is clamped, and the duct piece is prevented from being knocked and injured when being taken out;

a plurality of lining strips 8 are prevented from being placed between the partition plates 11, the bottoms of the lining strips 8 are fixedly connected with a fixed block 81, two sides of the fixed block 81 are connected with two sides of the slide rails 9 in a sliding mode, the upper surfaces of the lining strips 8 are fixedly connected with buffer strips 82, the lining strips 8 can slide on two sides of the slide rails 9 through the fixed block 81, the position of the lining strips 8 can be conveniently adjusted and moved, the pipe piece is supported, and meanwhile the buffer strips 82 can play a role in buffering and protect the pipe piece in the transportation process;

the sliding blocks 10 close to the lower surface of the partition plate 11 in the middle of the bottom plate 20 are fixedly arranged on the periphery of the sliding rails 9 and can be matched with 17 first pneumatic telescopic rods to clamp the pipe pieces to fix the pipe pieces;

limiting grooves are formed in the periphery of the bottom of the rotary table 105, and the inner side of the top of the sleeve 104 is attached to the periphery of the top wall of the rotary table 105, so that the stability of the rotary table 105 in rotation is improved.

The working principle is as follows: when the invention is used, the lining strips 8 are clamped at two sides of the slide rail 9 through the fixing blocks 81, the duct piece is placed on the lining strips 8, the lining strips 8 can support the duct piece, meanwhile, the buffer strips 82 can play a role of buffering to protect the duct piece in the transportation process, the first air cylinder 15 controls the first pneumatic telescopic rod 17 to perform telescopic motion through the first air pipe 16, the first pneumatic telescopic rod 17 pushes the partition plates 11 to move through the back plate 14 when performing telescopic motion, the duct piece between the fixed partition plates 11 is tightened to prevent the duct piece from moving, the back plate 14 is favorable for dispersing the stress of the first pneumatic telescopic rod 17 on the partition plates 11, so that the stress is more uniform, the duct piece is convenient to be fixed, the partition plates 11 are in an arc shape, the radian is consistent with that of the duct piece, rubber pads 12 are fixedly adhered at two sides of the partition plates 11, the better fixation is convenient, and the buffer effect can be provided when the duct piece is clamped, the double-head hydraulic cylinder 32 can control the hydraulic telescopic rod 33 to perform telescopic motion through the oil pipe 31 to drive the upper base 21 to ascend or descend, so that the height of the double-head hydraulic cylinder is adjusted, the double-head hydraulic cylinder is convenient to load and unload the duct piece, the double-head hydraulic cylinder can reduce the height of the double-head hydraulic cylinder when running in a tunnel, is convenient to transport, can be fixed with the existing tools such as a tractor through the traction hook 19 more flexibly, and is convenient to pull and move;

when long pipe pieces need to be carried out, the second air cylinder 206 controls the second pneumatic telescopic rod 205 to carry out telescopic motion through the second air pipe 206, the second pneumatic telescopic rod 205 can push the fixed rod 203 to move when carrying out telescopic motion, the fixed rod 203 can drive the movable plate 202 to carry out telescopic motion, the base 2 is controlled to extend, meanwhile, the fixed rod 203 and the inserting plate 2011 can provide enough supporting strength so as to support the pipe pieces, meanwhile, the motor 101 drives the first bevel gear 103 to rotate, the first bevel gear 103 can drive the second bevel gear 106 to rotate, the second bevel gear 106 can drive the rotary table 105 to rotate, the rotary table 105 can drive the bottom plate 20 to rotate 90 degrees in the same direction, at the moment, the partition plates 11 are parallel to the length direction of the base 2, then the movable plate 202 is controlled to move to a proper position through the second pneumatic telescopic rod 205 according to the length of the pipe pieces, the long pipe pieces are placed on the lining strips 8 between the partition plates 11, the first pneumatic telescopic rod 17 is controlled to push the partition plates 11 to move through the back plate 14 during telescopic motion, the segments between the fixed partition plates 11 are tightened, the transportation can be carried out, some longer segments are conveyed, and the tunnel can be smoothly entered.

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.