Hoisting equipment for micro pipe jacking construction

Abstract

The invention provides hoisting equipment for miniature pipe jacking construction, and relates to the technical field of hoisting of pipe jacking construction. An electric winch is fixedly installed at the top of the supporting main frame, a lifting hoisting frame is connected into the supporting main frame, and a steel wire rope of the electric winch is connected with the top of the lifting hoisting frame. A guide outer pipe is connected into the lifting hoisting frame, a rolling wheel is installed in the guide outer pipe in a surrounding mode, and two fastening bolts are connected to the end of the guide outer pipe. Through sliding fit of the guiding sliding blocks and the guiding sliding holes, guiding is provided for vertical movement of the lifting and hoisting frame, the pipes are kept in a stable state in the lifting process, and therefore precise butt joint operation of the two pipes is effectively guaranteed. The problems that when lifting equipment for miniature pipe jacking construction is applied, an effective limiting and fixing mechanism for the pipes is lacked, the pipes are prone to swinging left and right in the lifting and hoisting process, manual supporting is needed, and accurate butt joint of the two pipes can be achieved by repeatedly adjusting the positions of the pipes are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pipe jacking construction hoisting technology, and particularly relates to a hoisting and lifting equipment for micro pipe jacking construction. BACKGROUND

[0002] As an important branch of trenchless construction, micro pipe jacking technology has shown significant advantages in municipal pipe network and power communication engineering in recent years. The technology does not need large-area excavation of the ground, and is particularly suitable for areas with heavy traffic, dense buildings and complex underground pipelines. For the construction of micro pipe jacking, hoisting and lifting equipment is needed for hoisting and lifting auxiliary operations.

[0003] The existing hoisting and lifting equipment for micro pipe jacking construction lacks effective limiting and fixing mechanism for the pipe in actual application, which causes the pipe to swing left and right during hoisting and lifting operations. Construction personnel have to manually support the pipe and repeatedly adjust the position of the pipe to achieve accurate butt joint of two pipes. The whole operation process is complicated and inefficient. SUMMARY

[0004] The present application relates to a hoisting and lifting equipment for micro pipe jacking construction, which solves the problem that the existing hoisting and lifting equipment for micro pipe jacking construction lacks effective limiting and fixing mechanism for the pipe in actual application, which causes the pipe to swing left and right during hoisting and lifting operations. Construction personnel have to manually support the pipe and repeatedly adjust the position of the pipe to achieve accurate butt joint of two pipes. The whole operation process is complicated and inefficient.

[0005] In the first aspect, the present application provides a hoisting and lifting equipment for micro pipe jacking construction, which specifically comprises a support main frame, an electric hoist, a lifting and hoisting frame, a guide outer pipe, a roller, a fastening bolt, a rotating shaft, a push-pull connecting piece, a control screw, a bottom support seat and a U-shaped bolt. The electric hoist is fixedly installed at the top of the support main frame, and the lifting and hoisting frame is connected inside the support main frame. The steel wire rope of the electric hoist is connected to the top of the lifting and hoisting frame. The guide outer pipe is connected inside the lifting and hoisting frame, the roller is installed around the inside of the guide outer pipe, and two fastening bolts are connected to the end of the guide outer pipe. The rotating shaft is connected to the bottom of the lifting and hoisting frame, the control screw is connected to the end of the rotating shaft, the push-pull connecting piece is connected to the end of the control screw, and the push-pull connecting piece is connected to the guide outer pipe. The bottom support seat is connected to the bottom of the support main frame, and four support wheels are arranged at the bottom of the bottom support seat. The U-shaped bolt is connected to the top of the bottom support seat, and the U-shaped bolt is connected to the support main frame.

[0006] Further, the guide outer pipe is rotationally connected to the lifting and hoisting frame, and the pitch rotation adjustment angle of the guide outer pipe is -30-30 degrees.

[0007] Further, the lifting and hoisting frame is symmetrically provided with arc-shaped sliding holes on both sides, and the guide outer tube is symmetrically provided with movable sliding blocks, which are slidingly connected in the arc-shaped sliding holes of the lifting and hoisting frame.

[0008] Further, the rotating shaft is rotationally connected with the lifting and hoisting frame, the rotating shaft is provided with a screw hole B at the end, and the control screw is screwedly connected in the screw hole B of the rotating shaft.

[0009] Further, one end of the push-pull connecting piece is rotationally connected with the movable sliding block of the guide outer tube, the other end of the push-pull connecting piece is rotationally connected with the end of the control screw, the control screw is rotated, the guide outer tube is driven to rotate by the push-pull connecting piece, the guide outer tube is adjusted in pitch, and the pitch angle of the inner tube of the guide outer tube can be changed.

[0010] Further, the support main frame is provided with guide sliding holes on opposite sides, the lifting and hoisting frame is provided with guide sliding blocks on opposite sides, the guide sliding blocks are slidingly connected in the guide sliding holes, the lifting and hoisting frame is guided to move up and down through the sliding cooperation of the guide sliding blocks and the guide sliding holes, and the stability of the pipe is ensured during the lifting of the pipe driven by the electric hoist.

[0011] Further, the roller is rotationally connected with the guide outer tube, the guide outer tube is symmetrically provided with screw holes A at the end, the fastening bolts are screwedly connected in the screw holes A of the guide outer tube, before the electric hoist drives the pipe to lift, the fastening bolts are tightened, the fastening bolts are in contact with the outer wall of the pipe, the inner tube of the guide outer tube is fixed through the fastening bolts, and displacement of the pipe is avoided.

[0012] Further, the support main frame is in sliding contact with the bottom support base, the bottom support base is provided with movable holes on opposite sides, the support main frame is provided with fixed blocks on opposite sides, the fixed blocks are slidingly connected in the movable holes of the bottom support base, the fixed blocks are in sliding cooperation with the movable holes, the support main frame is guided to move up and down, the support main frame can be adjusted in lifting according to different heights of the pipe jacking construction from the pit bottom, the height of the guide outer tube when falling to the bottom end is changed, the height of the pipe is consistent with the pipe construction burying depth.

[0013] Further, the support main frame is provided with inner connecting holes on opposite sides, the support main frame is provided with outer connecting holes which are equidistantly arranged on opposite sides, the outer connecting holes are in communication with the inner connecting holes, the U-shaped bolts are inserted into the outer connecting holes and the inner connecting holes in the communication state, and the U-shaped bolts are screwedly connected with nuts at the ends, when the support main frame is adjusted and moved, the outer connecting holes and the inner connecting holes are in the communication state, the U-shaped bolts are inserted into the outer connecting holes and the inner connecting holes, and the nuts are connected at the ends, and the support main frame is fixed through the U-shaped bolts.

[0014] The lifting and hoisting equipment for micro pipe jacking construction has the following beneficial effects: The application can be flexibly rotated to control the screw rod according to the difference in the design slope of the pipeline, the connecting piece is driven to move through the push-pull action of the control screw rod, and the guide outer pipe is driven to rotate for adjustment, so that the pitch angle of the inner pipe of the guide outer pipe is accurately adjusted, the construction needs of burying the pipes with different slopes can be better met, the adjustment process is simple, fast, efficient and reliable; and the precise sliding cooperation of the guide sliding block and the guide sliding hole provides stable guidance for the up-down movement of the lifting frame, so that the pipe always keeps a stable state during the lifting process driven by the electric hoist, thereby effectively ensuring the accurate butt joint operation of the two pipes.

[0015] In addition, before the electric hoist lifts the pipe, the fastening bolt needs to be tightened first to ensure that it is tightly attached to the outer wall of the pipe, so that the pipe in the guide outer pipe is effectively fixed through the stable action of the fastening bolt to prevent accidental displacement of the pipe during the lifting process; after the butt joint of the two pipes is successfully completed, the fastening bolt is loosened in reverse to make it out of contact with the outer wall of the pipe, and the roller provides support for the pipe, which significantly reduces the friction coefficient between the pipe and the guide outer pipe, and creates smooth conditions for subsequent pipe jacking operation.

[0016] In addition, the fixed block and the movable hole are in sliding cooperation to guide the up-down movement of the support main frame, the support main frame can be adjusted in height according to the different heights of the pipe jacking construction from the pit bottom, the height of the guide outer pipe when falling to the bottom end is changed, the height of the pipe is consistent with the construction burying depth of the pipeline, and the needs of the micro pipe jacking operation are better met; after the support main frame is moved and adjusted, the outer connecting hole and the inner connecting hole are in communication, the U-shaped bolt is inserted into the outer connecting hole and the inner connecting hole, and the end connecting nut is connected, the support main frame is fixed through the U-shaped bolt, and the stability of the state of the support main frame is ensured.

[0017] Other advantages, objects and features of the present application will be apparent from the following description, and will be understood by those skilled in the art. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0019] The drawings in the following description only relate to some embodiments of the present application, and are not a limitation of the present application.

[0020] In the drawings: Figure 1 The overall axial side structure schematic diagram of the hoisting and lifting equipment for micro pipe jacking construction of the present application is shown; Figure 2 The support main frame axial side structure schematic diagram of the hoisting and lifting equipment for micro pipe jacking construction of the present application is shown; Figure 3 Figure 1 shows a schematic diagram of the structure of the lifting and hoisting frame of the lifting and hoisting equipment for micro pipe jacking construction according to the present application in the state of connection with the guide outer tube from the top shaft side; Figure 4 Figure 2 shows a schematic diagram of the structure of the lifting and hoisting frame of the lifting and hoisting equipment for micro pipe jacking construction according to the present application in the state of connection with the guide outer tube from the bottom shaft side; Figure 5 Figure 3 shows a schematic diagram of the connection structure of the lifting and hoisting frame of the lifting and hoisting equipment for micro pipe jacking construction according to the present application with the rotating shaft; Figure 6 Figure 4 shows a schematic diagram of the disassembly structure of the guide outer tube and the fastening bolt of the lifting and hoisting equipment for micro pipe jacking construction according to the present application; Figure 7 Figure 5 shows a schematic diagram of the connection structure of the push-pull connecting piece and the control screw rod of the lifting and hoisting equipment for micro pipe jacking construction according to the present application; Figure 8 Figure 6 shows a schematic diagram of the disassembly structure of the bottom support seat and the U-shaped bolt of the lifting and hoisting equipment for micro pipe jacking construction according to the present application.

[0021] Reference signs: 1, support main frame; 101, guide sliding hole; 102, fixed block; 103, inner connecting hole; 2, electric hoist; 3, lifting and hoisting frame; 301, guide sliding block; 302, arc-shaped sliding hole; 4, guide outer tube; 401, screw hole A; 402, movable sliding block; 5, roller; 6, fastening bolt; 7, rotating shaft; 701, screw hole B; 8, push-pull connecting piece; 9, control screw rod; 10, bottom support seat; 1001, support wheel; 1002, movable hole; 1003, outer connecting hole; 11, U-shaped bolt; 12, nut. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0023] Please refer to Figures 1 to 8 : Embodiment 1 The application provides a lifting and hoisting equipment for micro pipe jacking construction, which comprises a support main frame 1, an electric hoist 2, a lifting and hoisting frame 3, a guide outer pipe 4, a roller 5, a fastening bolt 6, a rotating shaft 7, a push-pull connecting piece 8, a control screw rod 9, a bottom support base 10 and a U-shaped bolt 11; the electric hoist 2 is fixedly installed at the top of the support main frame 1, the lifting and hoisting frame 3 is connected inside the support main frame 1, and the steel wire rope of the electric hoist 2 is connected to the top of the lifting and hoisting frame 3; the guide outer pipe 4 is connected inside the lifting and hoisting frame 3, the roller 5 is annularly installed inside the guide outer pipe 4, and the guide outer pipe 4 is connected with two fastening bolts 6 at the ends; the rotating shaft 7 is connected to the bottom of the lifting and hoisting frame 3, the control screw rod 9 is connected to the end of the rotating shaft 7, the push-pull connecting piece 8 is connected to the end of the control screw rod 9, and the push-pull connecting piece 8 is connected with the guide outer pipe 4; the bottom support base 10 is connected to the bottom of the support main frame 1, and four supporting wheels 1001 are arranged at the bottom of the bottom support base 10; the U-shaped bolt 11 is connected to the top of the bottom support base 10 and connected with the support main frame 1.

[0024] In the embodiment, the guide outer pipe 4 is rotationally connected with the lifting and hoisting frame 3, the guide outer pipe 4 is adjusted at an angle of -30-30 degrees, arc-shaped sliding holes 302 are symmetrically arranged at the two sides of the lifting and hoisting frame 3, movable sliding blocks 402 are symmetrically arranged at the two sides of the guide outer pipe 4, the movable sliding blocks 402 are slidingly connected in the arc-shaped sliding holes 302 of the lifting and hoisting frame 3, the rotating shaft 7 is rotationally connected with the lifting and hoisting frame 3, screw holes B701 are arranged at the end of the rotating shaft 7, the control screw rod 9 is screw-connected in the screw holes B701 of the rotating shaft 7, one end of the push-pull connecting piece 8 is rotationally connected with the movable sliding blocks 402 of the guide outer pipe 4, and the other end of the push-pull connecting piece 8 is rotationally connected with the end of the control screw rod 9. According to the above technical scheme, the control screw rod 9 is rotated according to the design slope of the pipe, the guide outer pipe 4 is rotated by the push-pull connecting piece 8, the guide outer pipe 4 is adjusted in pitch, the pitch angle of the inner pipe of the guide outer pipe 4 is changed, the pipe burying construction requirement of different slopes is better met, and the adjustment is more convenient and fast.

[0025] In the embodiment, guide sliding holes 101 are arranged at the opposite sides of the support main frame 1, guide sliding blocks 301 are arranged at the opposite sides of the lifting and hoisting frame 3, and the guide sliding blocks 301 are slidingly connected in the guide sliding holes 101. According to the above technical scheme, the lifting and hoisting frame 3 is guided to move up and down through the sliding cooperation of the guide sliding blocks 301 and the guide sliding holes 101, the stability of the pipe is ensured in the pipe lifting process driven by the electric hoist 2, and the pipe butt joint operation is better realized.

[0026] In the embodiment, the roller 5 is rotationally connected with the guide outer pipe 4, screw holes A401 are symmetrically arranged at the ends of the guide outer pipe 4, and the fastening bolts 6 are screw-connected in the screw holes A401 of the guide outer pipe 4. Adopting the technical scheme, before the electric hoist 2 drives the pipe to lift, the fastening bolt 6 is tightened to make the fastening bolt 6 contact with the outer wall of the pipe, the pipe inside the guide outer pipe 4 is fixed through the fastening bolt 6, displacement of the pipe is avoided, after the two pipes are butt-jointed, the fastening bolt 6 is reversely rotated to make the fastening bolt 6 separate from the outer wall of the pipe, the pipe is supported through the roller 5, the friction coefficient of the pipe and the guide outer pipe 4 is reduced, and pipe jacking construction work can be performed.

[0027] In the embodiment two, on the basis of the embodiment one, the support main frame 1 is in sliding contact with the bottom support base 10, the bottom support base 10 is provided with the movable hole 1002 on opposite sides, the support main frame 1 is provided with the fixed block 102 on opposite sides, the fixed block 102 is in sliding connection in the movable hole 1002 provided on the bottom support base 10, the support main frame 1 is provided with the inner connecting hole 103 on opposite sides, the support main frame 1 is provided with the outer connecting hole 1003 equidistantly arranged on opposite sides, the outer connecting hole 1003 and the inner connecting hole 103 are in communication, the U-shaped bolt 11 penetrates the outer connecting hole 1003 and the inner connecting hole 103 in the communication state, and the U-shaped bolt 11 is threadedly connected with the nut 12 at an end portion. Adopting the technical scheme, the fixed block 102 and the movable hole 1002 are in sliding cooperation, the support main frame 1 is guided to move up and down, the support main frame 1 can be adjusted to move up and down according to different heights of pipe jacking construction from the pit bottom, the height of the guide outer pipe 4 when falling to the bottom end is changed, the height of the pipe is consistent with the pipe construction burying depth, and the needs of micro pipe jacking construction are better met; after the support main frame 1 is adjusted to move, the outer connecting hole 1003 and the inner connecting hole 103 are in the communication state, the U-shaped bolt 11 is inserted into the outer connecting hole 1003 and the inner connecting hole 103, and the nut 12 is connected at an end portion, the support main frame 1 is fixed through the U-shaped bolt 11, and the stability of the state of the support main frame 1 is ensured.

[0028] The working principle of the embodiment is as follows: first, the device is located in the pit excavated by the pipe jacking construction, the support main frame 1 is adjusted in height according to the different height of the pipe jacking construction from the pit bottom, the height of the guide outer pipe 4 when falling to the bottom end is changed, so that the height of the pipe is consistent with the pipe construction burying depth; after the support main frame 1 is adjusted in movement, the outer connecting hole 1003 and the inner connecting hole 103 are in communication, the U-shaped bolt 11 is inserted into the outer connecting hole 1003 and the inner connecting hole 103, and the end connecting nut 12 is connected, the support main frame 1 is fixed through the U-shaped bolt 11; next, according to the different pipe design slope, the control screw rod 9 is rotated, the control screw rod 9 drives the guide outer pipe 4 to rotate through the push-pull connecting piece 8, the guide outer pipe 4 is adjusted in pitch, the pitch angle of the pipe in the guide outer pipe 4 is changed, and the pipe burying construction requirement of different slopes is better met; the lifting hoisting frame 3 is moved to the top end by the electric winch 2, so that the guide outer pipe 4 is higher than the ground, the worker can push the pipe into the guide outer pipe 4, before the pipe is lifted by the electric winch 2, the fastening bolt 6 is tightened, so that the fastening bolt 6 is in contact with the outer wall of the pipe, the pipe in the guide outer pipe 4 is fixed through the fastening bolt 6, and displacement of the pipe is avoided; finally, the pipe is lowered into the pit by the electric winch 2, until the two pipes are butt-jointed together, the fastening bolt 6 is reversely rotated, so that the fastening bolt 6 is separated from the outer wall of the pipe, the pipe is supported through the roller 5, the friction coefficient of the pipe and the guide outer pipe 4 is reduced, and the pipe is pushed by the main jacking oil cylinder to realize the pipe jacking construction operation.

[0029] In this paper, the following points need attention: 1. The embodiment of the present application only relates to the structure involved in the embodiment of the present application, and other structures can refer to the general design.

[0030] 2. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined to obtain new embodiments.

[0031] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A hoisting and lifting equipment for micro-jacking pipe construction, comprising: Support main frame (1), electric hoist (2), lifting frame (3), guide outer tube (4), roller (5), fastening bolt (6), shaft (7), push-pull connecting piece (8), control screw (9), bottom support (10) and U-shaped bolt (11); characterized in that the support main frame (1) is fixedly installed with the electric hoist (2) at the top, the support main frame (1) is internally connected with the lifting frame (3), and the steel wire rope of the electric hoist (2) is connected with the top of the lifting frame (3); the lifting frame (3) is internally connected with the guide outer tube (4), the guide outer tube (4) is internally surrounded with the roller (5), and the guide outer tube (4) is connected with two fastening bolts (6) at the ends; the lifting frame (3) is connected with the shaft (7) at the bottom, the shaft (7) is connected with the control screw (9) at the end, the control screw (9) is connected with the push-pull connecting piece (8) at the end, and the push-pull connecting piece (8) is connected with the guide outer tube (4); the support main frame (1) is connected with the bottom support (10) at the bottom, and the bottom support (10) is provided with four supporting wheels (1001) at the bottom; the bottom support (10) is connected with the U-shaped bolt (11) at the top, and the U-shaped bolt (11) is connected with the support main frame (1).

2. The hoisting equipment for micro pipe-jacking construction according to claim 1, characterized in that, The guide outer tube (4) is rotationally connected with the lifting frame (3), and the pitch rotation adjustment angle of the guide outer tube (4) is -30-30 degrees.

3. The hoisting equipment for micro pipe-jacking construction according to claim 1, characterized in that, The lifting frame (3) is symmetrically provided with arc-shaped sliding holes (302) on both sides, the guide outer tube (4) is symmetrically provided with movable sliding blocks (402) on both sides, and the movable sliding blocks (402) are slidingly connected in the arc-shaped sliding holes (302) of the lifting frame (3).

4. The hoisting equipment for micro pipe-jacking construction according to claim 1, characterized in that, The shaft (7) is rotationally connected with the lifting frame (3), and the shaft (7) is provided with a screw hole B (701) at the end.

5. The micro pipe-jacking construction hoisting equipment according to claim 3, characterized in that, One end of the push-pull connecting piece (8) is rotationally connected with the movable sliding block (402) of the guide outer tube (4), and the other end of the push-pull connecting piece (8) is rotationally connected with the end of the control screw (9).

6. The micro pipe-jacking construction hoisting equipment according to claim 1, characterized in that, The support main frame (1) is provided with guide sliding holes (101) on opposite sides, the lifting frame (3) is provided with guide sliding blocks (301) on opposite sides, and the guide sliding blocks (301) are slidingly connected in the guide sliding holes (101).

7. The micro pipe-jacking construction hoisting equipment according to claim 1, characterized in that, The roller (5) is rotationally connected with the guide outer tube (4), the guide outer tube (4) is symmetrically provided with screw holes A (401) at the ends, and the fastening bolts (6) are threadedly connected in the screw holes A (401) of the guide outer tube (4).

8. The micro pipe-jacking construction hoisting equipment according to claim 1, characterized in that, The support main frame (1) is in sliding contact with the bottom support (10), the bottom support (10) is provided with movable holes (1002) on opposite sides, and the support main frame (1) is provided with fixed blocks (102) on opposite sides, and the fixed blocks (102) are slidingly connected in the movable holes (1002) of the bottom support (10).

9. The micro pipe-jacking construction hoisting equipment according to claim 8, characterized in that, The support main frame (1) is provided with inner connecting holes (103) on opposite sides, and the support main frame (1) is provided with outer connecting holes (1003) arranged at equal intervals on the opposite sides, the outer connecting holes (1003) are communicated with the inner connecting holes (103), and a U-shaped bolt (11) penetrates the outer connecting holes (1003) and the inner connecting holes (103) in the communicated state, and a nut (12) is threadedly connected to the end of the U-shaped bolt (11).

Images