CN117927737A - Non-excavation jacking equipment under limited space condition - Google Patents

Abstract

The application relates to the field of drainage engineering, in particular to non-excavation jacking equipment under a limited space condition, which comprises a working well, a track, a push ring and a hydraulic cylinder, wherein an inlet hole is formed in the inner wall of the working well, the inlet hole is used for a pipeline to pass through, the track is connected to the bottom wall of the working well, the length direction of the track is parallel to the axis of the inlet hole, the track is used for supporting the pipeline, the push ring is arranged on one side of the pipeline away from the inlet hole, the push ring is slidably connected to the upper end of the track, a cylinder body of the hydraulic cylinder is arranged on the outer side of the track, a piston rod of the hydraulic cylinder is connected to the push ring through a connecting piece, and the push ring is used for pushing the pipeline to jack. The layout of the hydraulic cylinder is adjusted to enable the hydraulic cylinder to be placed on the outer side of the track, and equipment length in the length direction of the track is reduced, so that the diameter of a working well is reduced, and the occupied area of the working well is reduced.

Description

Non-excavation jacking equipment under limited space condition

Technical Field

The application relates to the field of drainage engineering, in particular to non-excavation jacking equipment under a limited space condition.

Background

With the acceleration of the national development process, the urban construction steps are faster and faster, various municipal pipelines are crisscrossed and layered densely distributed underground, more and more buildings are arranged on the ground, and the excavation occupies traffic jam caused by the construction, so that a plurality of inconveniences are brought to the life and the work of citizens, and the construction difficulty and the cost are higher and higher. In order to solve the contradiction between municipal pipe network construction and social prosperity, a new construction technology, namely a non-excavation technology, is created. The pipe jacking construction method adopting the technology can pass through highways, railways and rivers without excavating the ground, and can even pass under buildings, thus being a safe and effective construction method.

In the process of pipe jacking construction, a working well needs to be built in a proper area firstly, various equipment required by construction is lifted into the working well to be matched with the working well for pipeline jacking construction, in the existing construction process, the movable end of the oil cylinder is mainly matched with the back wall to directly jack a pipeline into a hole formed in the inner side wall of the working well, so that the length of the working well along the jacking direction of the pipeline is not smaller than the thickness of the back wall, the length of the main jacking oil cylinder, the length of the pipeline and the sum of insurance lengths, the dimension of the working well along the jacking direction of the pipeline is easy to be caused to be larger, the construction cost is increased, and the influence on road traffic or some facilities is easy to be caused.

Disclosure of Invention

In order to reduce the occupied area of a working well, the application provides non-excavation jacking equipment under a limited space condition.

The non-excavation jacking equipment under the limited space condition provided by the application adopts the following technical scheme:

The utility model provides a non-excavation jacking equipment under limited space condition, includes working well, track, push ring and pneumatic cylinder, the inner wall of working well is equipped with into the entrance to a cave, it is used for supplying the pipeline to pass to advance the entrance to a cave, track connection is in the diapire of working well, orbital length direction is on a parallel with the axis of entering the entrance to a cave, the track is used for supporting the pipeline, push ring locates the pipeline and keeps away from one side of entering the entrance to a cave, push ring sliding connection is in orbital upper end, the orbital outside is located to the cylinder body of pneumatic cylinder, the piston rod of pneumatic cylinder passes through the connecting piece and is connected in push ring, push ring is used for promoting the pipeline jack-in.

Through adopting above-mentioned technical scheme, the overall arrangement of adjustment pneumatic cylinder makes the pneumatic cylinder place in orbital outside, reduces the equipment length at track length direction to reduce the diameter of working well, reduce the area of working well.

Preferably, the connecting piece includes dead lever, connecting rod, pull rod and push pedal, the dead lever is connected in the one end that the push ring deviates from into the entrance to a cave, the dead lever is equipped with a plurality ofly, and is a plurality of the dead lever sets up around the even interval of axial of push ring, the periphery of push ring is located to the connecting rod, connecting rod fixed connection in the tip of a plurality of dead levers, the one end fixed connection of pull rod is in the one end of connecting rod towards into the entrance to a cave, the other end fixed connection of pull rod is in the push pedal, the piston rod of pneumatic cylinder is connected in the push pedal.

Through adopting above-mentioned technical scheme, the pneumatic cylinder promotes the push pedal and removes and make a plurality of dead levers synchronous to push away the ring application of force for pipeline atress is even, and the difficult skew that produces of jacking in-process.

Preferably, the connecting piece further comprises a reinforcing rod, one end of the reinforcing rod is fixedly connected with the fixing rod, and the other end of the reinforcing rod is fixedly connected with the connecting rod.

Through adopting above-mentioned technical scheme, the structural strength of dead lever and connecting rod has been strengthened to the stiffener for when pneumatic cylinder is applied force the push pedal, dead lever and hydraulic rod are difficult for because the atress fracture, extension device's life.

Preferably, the hydraulic device further comprises a rear seat, wherein the rear seat is arranged on one side, far away from the hole, of the push plate, the rear seat is fixedly connected to the wall of the working well, the upper end of the rear seat is provided with a mounting groove, and the cylinder body of the hydraulic cylinder is fixedly connected to the groove wall, facing the hole, of the mounting groove.

Through adopting above-mentioned technical scheme, the rear seat is used for supporting and fixed pneumatic cylinder, improves the stability and the security of pneumatic cylinder during operation.

Preferably, the rear seat is arranged on one side of the connecting rod away from the push ring, and one end of the connecting rod away from the axis of the push ring is slidably connected to the outer wall of the rear seat facing the push ring.

Through adopting above-mentioned technical scheme, the backseat carries out spacingly to the slip of connecting rod and makes the slip of connecting rod stable for connecting rod and dead lever are difficult for the rupture, extension device's life.

Preferably, the device further comprises a fixing ring, a connecting ring and a sealing ring, wherein the fixing ring is fixedly connected to the inner wall of the working well, the fixing ring is arranged on the periphery of the inlet, the outer wall of the connecting ring is fixedly connected to the inner wall of the fixing ring, the inner wall of the connecting ring is fixedly connected to the outer wall of the sealing ring, and the sealing ring is sleeved on the periphery of the pipeline.

Through adopting above-mentioned technical scheme, the fixed ring is fixed the position of go-between and sealing ring, and the sealing ring cover is shot in the periphery of pipeline, and the inner wall of sealing ring forms sealedly with the outer wall of pipeline, reduces the water that oozes underground and mixes the probability that earth got into the working well, keeps the dry clean and tidy of working environment in the working well.

Preferably, the hydraulic well is characterized by further comprising a fixing seat, an air storage bag and a connecting pipe, wherein the connecting ring is arranged into an elastic air bag, an annular cavity is formed in the connecting ring, the fixing seat is arranged between the hydraulic cylinder and the hole inlet, the fixing seat is fixedly connected to the bottom wall of the working well, a placing groove is formed in one end of the fixing seat, which faces the hydraulic cylinder, of the fixing seat, the air storage bag is arranged in the placing groove, one end of the connecting pipe is communicated with the air storage bag, the other end of the connecting pipe is communicated with the annular cavity, and the hydraulic cylinder extrudes the air storage bag through a connecting piece.

Through adopting above-mentioned technical scheme, when the pipeline is pushed forward, the sealing ring can move along with the pipeline owing to frictional force, at this moment, the sealing ring is kept away from the outer wall of one end butt pipeline that advances the entrance to a cave, the sealing ring is close to the one end perk that advances the entrance to a cave, the leakproofness of pipeline outer wall and sealing ring inner wall reduces, set up the air storage bag, the pneumatic cylinder promotes the pipeline and extrudes the air storage bag when pushing forward, the gas in the air storage bag lets in the ring chamber through the connecting pipe, the go-between takes place deformation and makes the sealing ring be close to the one end butt pipeline outer wall of entrance to a cave, improve the leakproofness.

Preferably, the hydraulic system further comprises a water diversion pipe, a first slurry pump and a slurry storage tank, wherein the connecting ring is provided with a water diversion port, the water diversion port is close to the bottom wall of the working well, the water diversion pipe is inserted into the water diversion port, one end of the water diversion pipe is communicated with the slurry inlet of the first slurry pump, and the slurry outlet of the first slurry pump is communicated with the slurry storage tank.

Through adopting above-mentioned technical scheme, when the water that oozes out in the ground is great, first slush pump is taken out muddy water through the water conduit, and the pipeline is the in-process of jacking forward, and the annular intracavity is inflated and is improved the tight power of wrapping up in the water conduit, reduces because the deformation of connecting pipe makes the probability that muddy water spills from the seam crossing of water conduit and water inlet.

Preferably, the pipeline is provided with a push ring, the push ring is connected with the pipeline in a sliding mode, and the push ring is connected with the pipeline in a sliding mode.

By adopting the technical scheme, the pushing ring directly applies force to the concrete pipeline to easily damage the pipeline, the transition ring is used for transition, the pipeline is protected, and the damage probability of the pipeline is reduced.

Preferably, the outer wall of the transition ring is provided with a connecting port, and the connecting port is used for allowing a power line and a slurry pipe to pass through.

By adopting the technical scheme, the cutterhead is enabled to stably supply power in the tunneling process.

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

1. The layout of the hydraulic cylinders is adjusted to enable the hydraulic cylinders to be placed on the outer sides of the tracks, the equipment length in the length direction of the tracks is reduced, and therefore the diameter of a working well is reduced, and the occupied area of the working well is reduced;

2. When the pipeline is pushed forward, the sealing ring moves along with the pipeline due to friction force, at the moment, one end of the sealing ring, which is far away from the hole, is abutted against the outer wall of the pipeline, one end of the sealing ring, which is close to the hole, is tilted, the tightness of the outer wall of the pipeline and the inner wall of the sealing ring is reduced, the air storage bag is arranged, the hydraulic cylinder pushes the pipeline to push forward and simultaneously presses the air storage bag, gas in the air storage bag is introduced into the annular cavity through the connecting pipe, and the connecting ring deforms so that one end of the sealing ring, which is close to the hole, is abutted against the outer wall of the pipeline, so that the tightness is improved;

3. When more water oozes out of the ground, the first slurry pump pumps out the muddy water through the water conduit, and in the process that the pipeline is pushed forward, the annular cavity is inflated, so that the tightening force on the water conduit is improved, and the probability that the muddy water leaks from the joint of the water conduit and the water inlet due to the deformation of the connecting pipe is reduced.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a trenchless jacking apparatus in a limited space condition.

Fig. 2 is a schematic view of the overall structure of the track, transition ring, top iron, push ring, driving member, connecting member and waterproof assembly.

Fig. 3 is a schematic view of the overall structure of the track, push ring, drive, connector and waterproof assembly.

Reference numerals illustrate: 1. a working well; 11. an entrance to a cave; 2. a track; 21. a transverse rail; 22. a vertical rail; 3. a transition ring; 31. a connection port; 4. a top iron; 5. a push ring; 6. a driving member; 61. a rear seat; 611. a mounting groove; 62. a hydraulic cylinder; 7. a connecting piece; 71. a fixed rod; 72. a connecting rod; 73. a pull rod; 74. a push plate; 75. a reinforcing rod; 8. a waterproof assembly; 81. a fixing ring; 82. a connecting ring; 821. a ring cavity; 822. a water diversion port; 83. a seal ring; 84. a fixing seat; 841. a placement groove; 85. an air storage bag; 86. a connecting pipe; 87. a water conduit; 88. a first mud pump; 89. a pulp storage tank.

Detailed Description

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

The embodiment of the application discloses non-excavation jacking equipment under a limited space condition. Referring to fig. 1, a trenchless jacking apparatus under a limited space condition includes a working well 1, a track 2, a transition ring 3, a top iron 4, a push ring 5, a driving member 6, a connecting member 7, and a waterproof assembly 8.

Referring to fig. 1 and 2, the inner wall of the working well 1 is provided with a hole inlet 11, the hole inlet 11 penetrates the working well 1, and the hole inlet 11 is used for allowing a jacking machine and a pipeline to pass through. Track 2 includes rail 21 and erects rail 22, rail 21 fixed connection is in the diapire of working well 1, erects rail 22 fixed connection in the upper end of rail 21, the length direction of erectting rail 22 is perpendicular to the length direction of rail 21, the length direction of erectting rail 22 is on a parallel with the axis of advancing entrance to a cave 11, rail 21 is equipped with a plurality of, a plurality of rails 21 set up along the length direction uniform spacing of erectting rail 22, erects rail 22 and is equipped with two, two erects rail 22 set up along the length direction interval of rail 21, two erects rail 22 are located the both sides of advancing entrance to a cave 11 axis, two erects rail 22 are equal to the distance of advancing entrance to a cave 11 axis.

The upper ends of two perpendicular rails 22 are used for supporting the pipeline, transition ring 3, top iron 4 and push ring 5 all sliding connection are in the upper end of two perpendicular rails 22, the slip direction of transition ring 3, top iron 4 and push ring 5 all is on a parallel with the length direction of perpendicular rail 22, one side that entrance to a cave 11 was kept away from to the pipeline is located to push ring 5, between pipeline and push ring 5 is all located to transition ring 3 and top iron 4, one side butt pipeline of transition ring 3, one side butt top iron 4 of transition ring 3, the opposite side butt push ring 5 of top iron 4. The transition ring 3 is provided with a connecting port 31, the connecting port 31 is used for passing a power line and a slurry pipe, the power line is used for supplying power to the cutterhead, and the slurry pipe is used for extracting slurry generated by cutting of the cutterhead.

Referring to fig. 1 and 3, the driving member 6 includes a rear seat 61 and a hydraulic cylinder 62, the driving member 6 is provided with two driving members 6, the two driving members 6 are respectively disposed on two sides of the vertical rail 22, the rear seat 61 is fixedly connected to a wall of the working well 1 facing the entrance 11, an installation groove 611 is disposed at an upper end of the rear seat 61, and a cylinder body of the hydraulic cylinder 62 is fixedly connected to the installation groove 611 and faces a groove wall of the entrance 11.

Referring to fig. 1 and 3, the connecting piece 7 includes dead lever 71, connecting rod 72, pull rod 73, push pedal 74 and stiffener 75, and dead lever 71 fixed connection is in push ring 5 one end that deviates from into entrance to a cave 11, and dead lever 71 is equipped with two, and two dead levers 71 are evenly spaced around the axial of push ring 5 and are set up, and two dead levers 71 mutually perpendicular, and the length direction of dead lever 71 is 45 degrees with the contained angle at the bottom of working well 1, and the length of dead lever 71 is greater than the external diameter of push ring 5, and the periphery of push ring 5 is all located at the both ends of dead lever 71. The connecting rod 72 is equipped with two, and two connecting rods 72 are located respectively and are pushed away the both sides of ring 5, and the length direction of connecting rod 72 is vertical, and the equal fixed connection in the tip of dead lever 71 in both ends of connecting rod 72, and connecting rod 72 is located between push away ring 5 and rear seat 61, and the one end sliding connection that the connecting rod 72 deviates from push away ring 5 axis is in rear seat 61 towards the outer wall of push away ring 5.

The pull rods 73 are arranged in two, the pull rods 73 and the connecting rods 72 are arranged in one-to-one correspondence, one end of each pull rod 73 is fixedly connected to one end of each connecting rod 72, which faces the corresponding hole 11, the other end of each pull rod 73 is fixedly connected to a push plate 74, each push plate 74 is arranged between the corresponding rear seat 61 and the corresponding hole 11, a piston rod of each hydraulic cylinder 62 is fixedly connected to one end of each push plate 74, which faces the corresponding rear seat 61, and each pull rod 73 is connected to the middle of each connecting rod 72. The reinforcing rod 75 is arranged between the fixed rod 71 and the connecting rod 72, the length direction of the reinforcing rod 75 is horizontal, one end of the reinforcing rod 75 is fixedly connected to the fixed rod 71, the other end of the reinforcing rod 75 is fixedly connected to the connecting rod 72, the reinforcing rod 75 is provided with a plurality of reinforcing rods 75, and the reinforcing rods 75 are uniformly arranged at intervals along the vertical direction.

Referring to fig. 1 and 3, the waterproof assembly 8 includes a fixing ring 81, a connection ring 82, a sealing ring 83, a fixing seat 84, a gas storage bag 85, a connection pipe 86, a water conduit 87, a first mud pump 88, and a mud storage tank 89. The fixed ring 81 is fixedly connected to the inner wall of the working well 1, the fixed ring 81 is arranged on the periphery of the inlet 11, the outer wall of the connecting ring 82 is fixedly connected to the inner wall of the fixed ring 81, the inner wall of the connecting ring 82 is fixedly connected to the outer wall of the sealing ring 83, the sealing ring 83 is sleeved on the periphery of the pipeline, and the inner wall of the sealing ring 83 forms a seal with the outer wall of the pipeline.

The connecting ring 82 is set to elastic air bag, be equipped with the ring chamber 821 in the connecting ring 82, advance the entrance to a cave 11 and locate in the ring chamber 821, fixing base 84 locates push pedal 74 and advance between the entrance to a cave 11, fixing base 84 fixed connection is in the diapire of working well 1, fixing base 84 is equipped with standing groove 841 towards the one end of pneumatic cylinder 62, the air storage bag 85 is located in the standing groove 841, air storage bag 85 fixed connection is in the cell wall of standing groove 841, the one end intercommunication of connecting pipe 86 is in air storage bag 85, the other end intercommunication of connecting pipe 86 is in the ring chamber 821, pneumatic cylinder 62 promotes push pedal 74 and stretches into in the standing groove 841 and extrudees air storage bag 85.

The connecting ring 82 is provided with a water diversion port 822, the water diversion port 822 is close to the bottom wall of the working well 1, the water diversion port 822 penetrates through the connecting ring 82 along the axial direction of the entrance hole 11, the inner wall of the water diversion port 822 is circumferentially sealed, the water diversion port 822 is not communicated with the annular cavity 821, the water diversion pipe 87 is inserted into the water diversion port 822, one end of the water diversion pipe 87 is communicated with the slurry inlet of the first slurry pump 88, and the slurry outlet of the first slurry pump 88 is communicated with the slurry storage tank 89.

The implementation principle of the trenchless jacking equipment under the limited space condition provided by the embodiment of the application is as follows: the push plate 74 is pushed by the hydraulic cylinder 62 to move, the push plate 74 moves to drive the push ring 5 to move through the pull rod 73, the connecting rod 72 and the fixing rod 71, the push ring 5 pushes the pipeline to push in through the top iron 4 and the transition ring 3, the air storage bag 85 is extruded while the push plate 74 moves, air in the air storage bag 85 enters the connecting ring 82 through the connecting pipe 86, the tightness between the inner wall of the sealing ring 83 and the outer wall of the pipeline is improved, and the tightness between the inner wall of the water diversion port 822 and the outer wall of the water diversion pipe 87 is improved.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. The utility model provides a non-excavation jacking equipment under limited space condition which characterized in that: including working well (1), track (2), push ring (5) and pneumatic cylinder (62), the inner wall of working well (1) is equipped with into entrance to a cave (11), it is used for supplying the pipeline to pass to advance entrance to a cave (11), track (2) are connected in the diapire of working well (1), the length direction of track (2) is on a parallel with the axis of entering entrance to a cave (11), track (2) are used for supporting the pipeline, push ring (5) are located the pipeline and are kept away from one side of entrance to a cave (11), push ring (5) sliding connection is in the upper end of track (2), the outside of track (2) is located to the cylinder body of pneumatic cylinder (62), the piston rod of pneumatic cylinder (62) is connected in push ring (5) through connecting piece (7), push ring (5) are used for promoting the pipeline jack-in.

2. The trenchless jacking apparatus of claim 1 wherein: connecting piece (7) are including dead lever (71), connecting rod (72), pull rod (73) and push pedal (74), dead lever (71) are connected in the one end that push ring (5) deviate from entrance to a cave (11), dead lever (71) are equipped with a plurality ofly, a plurality of dead lever (71) are around the even interval setting of axial of push ring (5), the periphery of push ring (5) is located to connecting rod (72), connecting rod (72) fixed connection is in the tip of a plurality of dead levers (71), the one end fixed connection of pull rod (73) is in the one end of connecting rod (72) orientation entrance to a cave (11), the other end fixed connection of pull rod (73) is in push pedal (74), the piston rod of pneumatic cylinder (62) is connected in push pedal (74).

3. The trenchless jacking apparatus of claim 2 wherein: the connecting piece (7) further comprises a reinforcing rod (75), one end of the reinforcing rod (75) is fixedly connected with the fixing rod (71), and the other end of the reinforcing rod (75) is fixedly connected with the connecting rod (72).

4. The trenchless jacking apparatus of claim 2 wherein: the hydraulic device is characterized by further comprising a rear seat (61), wherein the rear seat (61) is arranged on one side, far away from the hole inlet (11), of the push plate (74), the rear seat (61) is fixedly connected to the wall of the working well (1), a mounting groove (611) is formed in the upper end of the rear seat (61), and a cylinder body of the hydraulic cylinder (62) is fixedly connected to the mounting groove (611) towards the groove wall of the hole inlet (11).

5. The trenchless jacking apparatus of claim 4 wherein: the rear seat (61) is arranged on one side, far away from the push ring (5), of the connecting rod (72), and one end, far away from the axis of the push ring (5), of the connecting rod (72) is connected with the outer wall, facing the push ring (5), of the rear seat (61) in a sliding mode.

6. The trenchless jacking apparatus of claim 1 wherein: still include solid fixed ring (81), go-between (82) and sealing ring (83), gu fixed ring (81) fixed connection is in the inner wall of working well (1), gu fixed ring (81) locate the periphery of entering entrance to a cave (11), the outer wall fixed connection of go-between (82) is in the inner wall of gu fixed ring (81), the inner wall fixed connection of go-between (82) is in the outer wall of sealing ring (83), the periphery of pipeline is located to sealing ring (83) cover.

7. The trenchless jacking apparatus of claim 6 wherein: still include fixing base (84), gas storage bag (85) and connecting pipe (86), connecting ring (82) are established to elastic air bag, be equipped with ring chamber (821) in connecting ring (82), between pneumatic cylinder (62) and inlet (11) are located to fixing base (84), fixing base (84) fixed connection is in the diapire of working well (1), fixing base (84) are equipped with standing groove (841) towards the one end of pneumatic cylinder (62), in standing groove (841) are located in gas storage bag (85), the one end of connecting pipe (86) communicates in gas storage bag (85), the other end of connecting pipe (86) communicates in ring chamber (821), pneumatic cylinder (62) extrudees gas storage bag (85) through connecting piece (7).

8. The trenchless jacking apparatus of claim 7 wherein: still include water conduit (87), first slush pump (88) and storage box (89), go-between (82) are equipped with water diversion mouth (822), water diversion mouth (822) are close to the diapire of working well (1), water conduit (87) are pegged graft in water diversion mouth (822), the one end of water conduit (87) communicates in the inlet of first slush pump (88), the outlet of first slush pump (88) communicates in storage box (89).

9. The trenchless jacking apparatus of claim 1 wherein: the pipeline pushing device is characterized by further comprising a transition ring (3), wherein the transition ring (3) is arranged between the pipeline and the pushing ring (5), the transition ring (3) is connected to the upper end of the track (2) in a sliding mode, and one end of the transition ring (3) faces to the inlet (11) to be abutted to the pipeline.

10. The trenchless jacking apparatus of claim 9 wherein: the outer wall of the transition ring (3) is provided with a connecting port (31), and the connecting port (31) is used for allowing a power line and a slurry pipe to pass through.