System for circulating and transporting earthwork during pipe jacking construction

Abstract

The application provides a kind of system for earthwork circulation and delivery in pipe jacking construction process, including belt conveyor and earth removal trolley arranged in pipe jacking, discharge bin and hoisting system are arranged on one side of belt conveyor along the direction of earthwork transportation, discharge bin and hoisting system are fixedly arranged on the upper part of pipe jacking, folding system is arranged on earth removal trolley, earth removal trolley in open state is located on the lower side of discharge bin, earth removal trolley in open state is slidably arranged on the track at the bottom of pipe jacking, earth removal trolley in folding state is detachably hoisted on hoisting system, discharge bin is used for buffering and transitioning the earthwork from belt conveyor. The application has clever structure and compact design, fully utilizes the space on the upper part of pipe jacking, realizes earthwork circulation and delivery, is easy to operate and safe, greatly improves construction efficiency, and in the process of trolley alternate loading, avoids the disadvantages of earthwork falling from belt conveyor into pipe jacking, also avoids the problem of subsequent maintenance and cleaning.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pipe jacking engineering construction, and in particular to a system for recycling and transporting earthwork during pipe jacking construction. BACKGROUND

[0002] In underground engineering construction, pipe jacking technology is often used. Pipe jacking technology is generally divided into several categories such as slurry balance, earth pressure balance and air pressure balance, among which the earth pressure balance technology is widely used due to its simple equipment and good environmental protection. The traditional earthwork transportation during earth pressure balance pipe jacking construction is carried out by an earth removal trolley. Due to the small diameter of the pipe, the earth removal trolley can only travel in one direction. However, with the advancement of technology in recent years, the single segment jacking distance of pipe jacking has gradually increased, generally reaching about one kilometer. With the increase of single segment jacking distance, the working efficiency of the traditional earthwork transportation trolley cannot meet the requirements of pipe jacking efficiency, and the pipe jacking often stops and waits for the earth removal trolley to transport earth.

[0003] Chinese patent document CN 107956478 A describes an earth removal device and method for earth pressure balance shield or pipe jacking construction. In this scheme, the transportation of earthwork is mainly completed by pumping. However, due to the differences in construction environment, hard gravel and other materials may be mixed in the earthwork during shield tunneling, and the presence of water in the earthwork will also directly affect the efficiency of pumping. The use of pumping form is restricted by many factors, and is easy to be blocked by gravel, overloaded or even damaged by impact. Therefore, there is a need for improvement. SUMMARY

[0004] The present application provides a system for recycling and transporting earthwork during pipe jacking construction, which solves the problem that during the recycling and transportation of earthwork during pipe jacking, the earthwork on the belt conveyor will fall into the pipe when the trolley is alternated, causing accumulation and affecting transportation efficiency, and the problem that the earthwork needs to be removed regularly.

[0005] To solve the above technical problems, the technical solution adopted by the present application is: a system for recycling and transporting earthwork during pipe jacking construction, comprising a belt conveyor and an earth removal trolley arranged in the pipe. The belt conveyor is provided with a discharge bin and a hoisting system on one side in the direction of earthwork transportation. The discharge bin and the hoisting system are fixedly arranged on the upper part of the pipe. The earth removal trolley is provided with a folding system. The earth removal trolley in the open state is located below the discharge bin. The earth removal trolley in the open state is slidably arranged on the track at the bottom of the pipe. The earth removal trolley in the folded state is detachably hoisted on the hoisting system. The discharge bin is used to buffer and transition the earthwork from the belt conveyor.

[0006] In the preferred solution, the unearthing trolley comprises a chassis and a hopper, the hopper is arranged on the upper portion of the chassis, the hopper comprises a protection plate, two end plates are symmetrically arranged on the protection plate along the laying direction of the track, a first side plate and a second side plate are arranged between the two end plates, the first side plate, the second side plate, the two end plates and the protection plate form a soil loading space, a folding system is arranged between the hopper and the chassis, the folding system is used to drive the end plates, the first side plate and the second side plate to complete the folding action, a first telescopic rod and a second telescopic rod are further arranged on the two end plates respectively, the first telescopic rod and the second telescopic rod are respectively used to control the closing and opening of the discharge bin.

[0007] In the preferred solution, the hopper further comprises a bottom plate, the bottom plate is fixedly arranged on the chassis, the folding system is arranged between the protection plate and the bottom plate, four limiting plates are arranged on the outer side of the protection plate in the circumferential direction, and the limiting plates are used for supporting and limiting the end plates, the first side plate and the second side plate.

[0008] In the preferred solution, the protection plate is respectively provided with a third fixed plate on both sides along the track direction, the upper portion of the third fixed plate is hingedly connected with the end plate, the bottom portion of the end plate is provided with a third L column, the upper side of the third L column is hingedly connected with the third fixed plate, the protection plate is respectively provided with a first fixed plate and a second fixed plate on both sides perpendicular to the track direction, the upper portions of the first fixed plate and the second fixed plate are respectively hingedly connected with the first side plate and the second side plate, the bottom portions of the first side plate and the second side plate are respectively provided with a first L column and a second L column, the upper sides of the first L column and the second L column are respectively hingedly connected with the first fixed plate and the second fixed plate, and the lower sides of the third L column, the first L column and the second L column are respectively connected with the folding system.

[0009] In the preferred solution, the folding system comprises a rotating shaft, the rotating shaft is arranged between the protection plate and the bottom plate, a small gear and a large gear are arranged on the rotating shaft, the small gear is located on the lower side of the large gear, a driving rod is meshingly connected with the small gear, the driving rod is provided with a power cylinder on one side, the power cylinder is fixedly arranged on the bottom plate, and the outer side of the large gear is respectively meshingly connected with a first displacement gear, a second displacement gear, a third displacement gear and a fourth displacement gear.

[0010] The first displacement gear is provided with a first push rod on one side, the second displacement gear is provided with a second push rod on one side, the third displacement gear is provided with a third push rod on one side, the fourth displacement gear is provided with a fourth push rod on one side, the distal ends of the first push rod, the second push rod, the third push rod and the fourth push rod are respectively hingedly connected with one side of an adapter rod, the other side of the adapter rod is respectively hingedly connected with the third L column, the first L column and the second L column, and the folding system is further provided with four sliding rods, the sliding rods are fixedly arranged on the bottom portion of the protection plate, and the first push rod, the second push rod, the third push rod and the fourth push rod are respectively slidably connected with the sliding rods.

[0011] In the preferred solution, the first variable gear is provided with a first gear lever, the second variable gear is provided with a second gear lever, the first gear lever and the second gear lever are opposite in direction, the third variable gear is provided with a third gear lever, the fourth variable gear is provided with a fourth gear lever and a fifth gear lever, the third gear lever and the fifth gear lever are opposite in direction, the fourth gear lever and the fifth gear lever are perpendicular in direction, the third gear lever and the second gear lever are the same in direction, the first push rod, the second push rod and the fourth push rod are respectively provided with one-way stop rods for cooperating with the first gear lever, the second gear lever and the third gear lever, and the third push rod is provided with two one-way stop rods for cooperating with the fourth gear lever and the fifth gear lever.

[0012] The one-way stop rod comprises a sleeve, a cavity is arranged in the sleeve, a sliding channel is arranged in the upper part of the cavity, a spring is arranged in the cavity, a base is supported on the spring, a protrusion is arranged on the top of the base, the protrusion is slidably arranged in the sliding channel, and a slope and a straight surface are arranged on the two sides of the protrusion.

[0013] In the preferred solution, the first telescopic rod and the second telescopic rod are staggered and arranged on the end plates on the two sides, the first telescopic rod and the second telescopic rod are fixedly arranged on the mounting plate, and the mounting plate is connected with the end plate through a screw.

[0014] In the preferred solution, the discharge bin comprises a channel, the bottom of the channel is inclined to one side of the track, a first discharge port is arranged in the lower part of the channel, a sliding plate is slidably arranged in the channel, a second discharge port matched with the first discharge port is arranged on the sliding plate, a second contact plate and a first contact plate are arranged on the two sides of the sliding plate, and the second contact plate and the first contact plate control the opening and closing of the discharge bin through the first telescopic rod and the second telescopic rod.

[0015] In the preferred solution, a convex strip is arranged on the inner lower side of the channel, the convex strip and the channel form a sliding groove, the sliding plate is slidably arranged in the sliding groove, an oblique opening is arranged at the end of the channel away from the belt conveyor, the upper side of the oblique opening is hingedly connected with a first circular rod and an expansion plate, the first circular rod is arranged in the mounting hole, a first adapter table is arranged on the side of the sliding plate close to the oblique opening, notches are arranged on the two sides of the first adapter table, the notches are slidably connected with the convex strip, the first adapter table is hingedly connected with a second adapter table through a second circular rod, an execution plate is arranged on the second adapter table, a through slot is arranged on the upper part of the execution plate, and the lower side of the expansion plate is slidably arranged in the execution plate.

[0016] In the preferred solution, the hoisting system comprises a first wheel slide and a second wheel slide arranged in the top pipe, the winch is connected with a lifting frame through a lifting cable, the lifting cable is arranged around the first wheel slide and the second wheel slide, the bottom of the lifting frame is provided with a lifting ring, the lifting frame is connected with the lifting cable through a lifting cable, the lifting cable is further provided with a fixed end of a limiter and a movable end of the limiter, the driving trolley comprises a first jack and a first lug plate, the chassis comprises a second jack and a second lug plate, the first lug plate and the second lug plate are hingedly connected through a latch, and the lifting ring is sleeved on the first lifting lug and the second lifting lug.

[0017] The beneficial effects of the present application are: by setting the hoisting system on one side of the belt conveyor, the small car for unearthing is temporarily stored on the upper part of the pipe jacking, since the small car for unearthing can be completely folded, the space on the upper part of the pipe jacking can be fully utilized while the circulation operation of the small car for loading earth is ensured, the discharge bin can play a role of buffering and temporarily storing earthwork, and the problem that earthwork cannot be loaded and falls into the pipe jacking due to the time difference generated by the small cars for unearthing and loading earth can be solved, the system folding system works quickly, stably and alternately, the efficiency of the pipe jacking for unearthing is greatly improved, and good economic benefits are obtained. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in combination with the drawings and embodiments:

[0019] Figure 1 is a schematic diagram of the construction operation state one of the present application;

[0020] Figure 2 is a schematic diagram of the construction operation state two of the present application;

[0021] Figure 3 is a schematic diagram of the hoisting system of the present application;

[0022] Figure 4 is a left view schematic diagram of Figure 3 ;

[0023] Figure 5 is a schematic diagram of the car body opening of the present application;

[0024] Figure 6 is a schematic diagram of the car body folding of the present application;

[0025] Figure 7 is a schematic diagram of the end plate opening state of the present application;

[0026] Figure 8 is a schematic diagram of the first side plate and the second side plate folding state of the present application;

[0027] Figure 9 is a schematic diagram of the first side plate and the second side plate opening state of the present application;

[0028] Figure 10 is a schematic diagram of the overall structure of the one-way stop rod of the present application;

[0029] Figure 11 is a front view schematic diagram of Figure 10 ;

[0030] Figure 12 is an A-A sectional view of Figure 11 ;

[0031] Figure 13 is a state one of the folding process of the present application;

[0032] Figure 14 is the folding process state two of the present application;

[0033] Figure 15 is the folding process state three of the present application;

[0034] Figure 16 is the folding process state four of the present application;

[0035] Figure 17 is the opening process state one of the present application;

[0036] Figure 18 is the opening process state two of the present application;

[0037] Figure 19 is the opening process state three of the present application;

[0038] Figure 20 is the opening process state four of the present application;

[0039] Figure 21 is the car hopper open structure schematic state one of the present application;

[0040] Figure 22 is the car hopper open structure schematic state two of the present application;

[0041] Figure 23 is the car hopper folding structure schematic state one of the present application;

[0042] Figure 24 is the car hopper folding structure schematic state two of the present application;

[0043] Figure 25 is the explosion structure schematic state one of Figure 21

[0044] Figure 26 is the explosion structure schematic state two of Figure 21

[0045] Figure 27 is the schematic state one of the present application that the discharge bin discharges to the trolley;

[0046] Figure 28 is the schematic state two of the present application that the discharge bin discharges to the trolley;

[0047] Figure 29 is the overhead schematic of Figure 27

[0048] Figure 30 is the left side schematic of Figure 27

[0049] Figure 31 is​​​​Figure 27 a front view schematic of the present invention;

[0050] Figure 32 is a schematic state one of the present invention when the discharge bunker is closed;

[0051] Figure 33 is a schematic state two of the present invention when the discharge bunker is closed;

[0052] Figure 34 is Figure 31 an exploded schematic state one of the present invention;

[0053] Figure 35 is Figure 31 an exploded schematic state two of the present invention;

[0054] Figure 36 is a schematic view of the discharge bunker structure of the present invention.

[0055] Figure: The excavator 1; hoisting system 2; lifting frame 201; lifting ring 202; lifting cable 203; limiter fixed end 204; limiter movable end 205; first wheel slide 206; second wheel slide 207; lifting cable 208; winch 209; track 3; belt conveyor 4; drive trolley 5; first jack 501; first ear plate 502; chassis 6; second jack 601; second ear plate 602; car hopper 7; protective plate 701; bottom plate 702; third fixed plate 703; end plate 704; limiting plate 705; third L column 706; first fixed plate 707; first side plate 708; second fixed plate 709; second side plate 710; first L column 711; second L column 712; baffle 713; avoidance groove 714; folding system 8; power cylinder 801; drive rod 802; rotating shaft 803; pinion 804; gearwheel 805; slide rod 806; first displacement gear 807; second displacement gear 808; third displacement gear 809; fourth displacement gear 810; bolt 9; adapter rod 10; first push rod 11; second push rod 12; third push rod 13; fourth push rod 14; limiting wheel 15; first gear lever 16; second gear lever 17; third gear lever 18; fourth gear lever 19; fifth gear lever 20; first magnet 21; second magnet 22; third magnet 23; one-way stop lever 24; sleeve 2401; protrusion 2402; inclined surface 2403; straight surface 2404; cavity 2405; spring 2406; base 2407; slide 2408; discharge bin 25; passage 2501; bevel 2502; first discharge opening 2503; slide plate 2504; protrusion 2505; sliding groove 2506; first round rod 2507; first adapter table 2508; notch 2509; execution plate 2510; through slot 2511; expansion plate 2512; mounting hole 2513; first contact plate 2514; second contact plate 2515; second adapter table 2516; second round rod 2517; second discharge opening 2518; first telescopic rod 26; second telescopic rod 27; mounting plate 28; screw 29; guide plate 30. DETAILED DESCRIPTION

[0056] As Figures 1-36The utility model relates to a kind of system of earthwork circulation out transport in pipe jacking construction process, including the belt conveyor 4 being arranged in pipe and earth removal trolley 1, belt conveyor 4 is equipped with discharge bin 25 and hoisting system 2 in the direction of earthwork transport one side, discharge bin 25 and hoisting system 2 are fixed in the upper portion of pipe, earth removal trolley 1 is equipped with folding system 8, opened state's earth removal trolley 1 is located in the lower side of discharge bin 25, opened state's earth removal trolley 1 is slid on the track 3 of the bottom of pipe, folding state's earth removal trolley 1 is detachably hoisted in hoisting system 2, discharge bin 25 is used to buffer transition from the earthwork on belt conveyor 4. Thus structure, to make belt conveyor 4 remove the earthwork generated by shield machine excavation to rear end, then transition is carried out by discharge bin 25, when two earth removal trolleys 1 are alternated, earthwork can be temporarily stored, since the running speed of belt conveyor 4 and the excavation parameter of shield machine cooperate, so as to guarantee the stable and efficient of excavation process, belt conveyor 4 needs to keep continuous work, folding system 8 changes the size and height of earth removal trolley well, fold state's earth removal trolley 1 is lifted to the upper portion of pipe by hoisting system 2, opened state's earth removal trolley 1 is loaded in the bottom of pipe, cooperation, can guarantee the circulation of earthwork transport efficient, whole process does not need to stop, guide plate 30 is arranged between belt conveyor 4 and discharge bin 25, preferably avoid the problem that earthwork falls from belt conveyor 4 to the bottom of pipe, guide plate 30 is inclined to the passageway 2501 of discharge bin 25, so that the entrance of discharge bin 25 avoids the large difference between the outlet of belt conveyor 4, can guarantee that the space of upper portion of pipe is fully utilized, avoid to encroach on the loading space of trolley, improve the loading height of trolley, loading capacity is larger, the efficiency of earthwork transport is higher.

[0057] In the preferred scheme, the unearthing trolley 1 comprises a chassis 6 and a trolley bucket 7 arranged on the upper portion of the chassis 6, the trolley bucket 7 comprises a protection plate 701, two end plates 704 are symmetrically arranged on the protection plate 701 along the laying direction of the track 3, a first side plate 708 and a second side plate 710 are arranged between the two end plates 704, the first side plate 708, the second side plate 710, the two end plates 704 and the protection plate 701 form a soil loading space, a folding system 8 is arranged between the trolley bucket 7 and the chassis 6, the folding system 8 is used to drive the end plates 704, the first side plate 708 and the second side plate 710 to complete the folding action, and a first telescopic rod 26 and a second telescopic rod 27 are respectively arranged on the two end plates 704, the first telescopic rod 26 and the second telescopic rod 27 are respectively used to control the closing and opening of the discharge bin 25. One side of the chassis 6 is detachably provided with a driving trolley 5, the driving trolley 5 adopts an electric form, has high efficiency and will not cause large pollution or vibration. Thus, the whole is convenient to manufacture, the chassis 6 serves as a support and can quickly install the folding system 8 on the chassis 6, the opening and folding of the trolley bucket 7 are controlled by the folding system, that is, the trolley in the folded state is installed on the upper portion of the pipe, the trolley in the opened state is installed on the lower portion of the pipe, the space in the pipe can be fully utilized, then when the trolley in the opened state completes the soil loading and unloading, the trolley in the folded state is lowered from the upper portion of the pipe and adjusted to the opened state, then the soil loading is continued, then when the trolley in the opened state completes the soil unloading and returns to the initial position, the opened state is changed to the folded state and re-hoisted to the upper portion of the pipe to wait for the soil loading of the other trolley, when the other trolley completes the soil loading and unloading, the trolley in the folded state is lowered and starts the soil loading, and the operation is alternately and circularly performed, the cross section and space of the pipe are maximally utilized, and the soil unloading is efficiently completed. According to the digging distance, two hoisting systems 2 can be designed in advance, so that three unearthing trolleys in the pipe can be simultaneously ensured to alternately and circularly operate, and the use efficiency is higher.

[0058] In the preferred scheme, the trolley bucket 7 further comprises a bottom plate 702 fixedly arranged on the chassis 6, the folding system 8 is arranged between the protection plate 701 and the bottom plate 702, four limiting plates 705 are circumferentially arranged on the outer side of the protection plate 701, and the limiting plates 705 are used for supporting and limiting the end plates 704, the first side plate 708 and the second side plate 710. Thus, the whole is modularized, convenient to manufacture and disassemble, convenient to maintain in the later period, convenient to adjust, and the end plates 704, the first side plate 708 and the second side plate 710 can be prevented from continuing to turn outwards under the pressure of the soil after being erected.

[0059] In the preferred scheme, the protection plate 701 is provided with a third fixed plate 703 on each side along the direction of the track 3, and the upper part of the third fixed plate 703 is hingedly connected with an end plate 704, and the bottom of the end plate 704 is provided with a third L-shaped column 706, and the upper side of the third L-shaped column 706 is hingedly connected with the third fixed plate 703, and the protection plate 701 is provided with a first fixed plate 707 and a second fixed plate 709 on each side perpendicular to the direction of the track 3, and the upper part of the first fixed plate 707 and the second fixed plate 709 is respectively hingedly connected with a first side plate 708 and a second side plate 710, and the bottom of the first side plate 708 and the second side plate 710 is respectively provided with a first L-shaped column 711 and a second L-shaped column 712, and the upper side of the first L-shaped column 711 and the second L-shaped column 712 is respectively hingedly connected with the first fixed plate 707 and the second fixed plate 709, and the lower side of the third L-shaped column 706, the first L-shaped column 711 and the second L-shaped column 712 is respectively connected with the folding system 8. The height of the end plate 704 is less than half of the length of the protection plate 701 along the direction of the track 3, and the height of the first side plate 708 and the second side plate 710 is greater than half of the width of the protection plate 701 perpendicular to the direction of the track 3, and is less than the width of the protection plate 701. Therefore, the first fixed plate 707 is lower than the second fixed plate 709 to avoid the problem of mutual collision of the first side plate 708 and the second side plate 710 during folding and after folding is completed. Due to the different heights of the hinge points and the time difference in the folding opening sequence, the collision is prevented under the premise of ensuring the soil capacity.

[0060] In the preferred scheme, the folding system 8 includes a rotating shaft 803, which is arranged between the protection plate 701 and the bottom plate 702, and the rotating shaft 803 is provided with a pinion 804 and a gear 805, the pinion 804 is located below the gear 805, and the pinion 804 is hingedly connected with a driving rod 802, and one side of the driving rod 802 is provided with a power cylinder 801, and the power cylinder 801 is fixedly arranged on the bottom plate 702, and the outer side of the gear 805 is hingedly connected with a first displacement gear 807, a second displacement gear 808, a third displacement gear 809 and a fourth displacement gear 810 respectively;

[0061] The first variable gear 807 is provided with a first push rod 11 on one side, the second variable gear 808 is provided with a second push rod 12 on one side, the third variable gear 809 is provided with a third push rod 13 on one side, the fourth variable gear 810 is provided with a fourth push rod 14 on one side, the distal ends of the first push rod 11, the second push rod 12, the third push rod 13 and the fourth push rod 14 are respectively hinged to one side of the adapter rod 10, the other side of the adapter rod 10 is respectively hinged to the third L column 706, the first L column 711 and the second L column 712, the folding system 8 is further provided with four slide rods 806, the slide rods 806 are fixedly arranged at the bottom of the protection plate 701, and the first push rod 11, the second push rod 12, the third push rod 13 and the fourth push rod 14 are respectively slidably connected to the slide rods 806. The outer shape of the first L column 711 is smaller than that of the second L column 712, so that the power cylinder 801 and the driving rod 802 and the pinion gear 804 are located on the same plane, the spur gear 805, the first variable gear 807, the second variable gear 808, the third variable gear 809 and the fourth variable gear 810 are on the same plane, the limit wheel 15 is arranged on the side of the driving rod 802, the first push rod 11, the second push rod 12, the third push rod 13 and the fourth push rod 14 which does not participate in meshing movement, through the limiting action of the limit wheel 15, it can be ensured that the driving rod 802, the first push rod 11, the second push rod 12, the third push rod 13 and the fourth push rod 14 can effectively complete the meshing action, the overall transmission efficiency is higher, and the execution is more stable, the first L column 711, the second L column 712 and the third L column 706 respectively cooperate with the adapter rod 10 to convert the linear motion of the driving rod 802 into rotation, so that the relatively small displacement change of the driving rod 802 is converted into an angle change.

[0062] In the preferred scheme, the first variable gear 807 is fixedly provided with a first gear lever 16, the second variable gear 808 is fixedly provided with a second gear lever 17, the directions of the first gear lever 16 and the second gear lever 17 are opposite, the third variable gear 809 is fixedly provided with a third gear lever 18, the fourth variable gear 810 is fixedly provided with a fourth gear lever 19 and a fifth gear lever 20, the directions of the third gear lever 18 and the fifth gear lever 20 are opposite, the directions of the fourth gear lever 19 and the fifth gear lever 20 are perpendicular, the direction of the third gear lever 18 is the same as that of the second gear lever 17, the first push rod 11, the second push rod 12 and the fourth push rod 14 are respectively provided with one-way stop levers 24 for cooperating with the first gear lever 16, the second gear lever 17 and the third gear lever 18, and the third push rod 13 is provided with two one-way stop levers 24 for cooperating with the fourth gear lever 19 and the fifth gear lever 20;

[0063] The one-way stop lever 24 comprises a sleeve 2401, a cavity 2405 is arranged in the sleeve 2401, the upper portion of the cavity 2405 is provided with a slide 2408, a spring 2406 is arranged in the cavity 2405, the spring 2406 supports a base 2407, the top of the base 2407 is provided with a protrusion 2402, the protrusion 2402 is slidably arranged in the slide 2408, and the protrusion 2402 is provided with a slope 2403 and a straight surface 2404 on both sides.

[0064] The slopes 2403 of the one-way stop levers 24 arranged on the first push rod 11 and the second push rod 12 are arranged away from the rotating shaft 803, the one-way stop lever 24 arranged on the fourth push rod 14 is arranged close to the rotating shaft 803, and the two one-way stop levers 24 arranged on the third push rod 13 are oppositely arranged, the slope 2403 of the one-way stop lever 24 away from the rotating shaft 803 is arranged away from the rotating shaft 803, and the slope 2403 of the one-way stop lever 24 close to the rotating shaft 803 is arranged close to the rotating shaft 803, so that the linear motion of the first push rod 11, the second push rod 12, the third push rod 13 and the fourth push rod 14 is completed by the rotation of the first stop lever 16, the second stop lever 17 and the third stop lever 18 and the fourth stop lever 19 and the fifth stop lever 20, and the whole operation is stable and efficient.

[0065] When the one-way stop lever works, when the protrusion 2402 is in contact with the slope 2303, the slope 2402 generates a slanting component force to push the base 2407 to press the spring 2406 until the protrusion 2402 enters the slide 2408, and then the protrusion 2402 is restored to the initial state by the elastic deformation of the spring 2406 after the protrusion 2402 is separated from the pressed state, when the protrusion 2402 is in contact with the straight surface 2404, the protrusion 2402 is not pressed into the slide 2408 because the protrusion 2402 is subjected to a force perpendicular to the straight surface 2404, at this time, the protrusion 2402 is forced to drive the corresponding push rod to move linearly, and the displacement change is completed.

[0066] First magnet 21 and third magnet 23 are respectively arranged on one side of third push rod 13 and fourth push rod 14, third push rod 13 and fourth push rod 14 are respectively arranged in avoiding slot 714 on baffle 713 at bottom of protection plate 701, second magnet 22 for locking third push rod 13 is arranged at bottom of protection plate 701, first magnet 21 and third magnet 23 are respectively magnetically attracted to baffle 713, third push rod 13 is magnetically attracted to second magnet 22. The whole trolley is made of steel material, and the structure is such that when third push rod 13 and fourth push rod 14 run to different positions, corresponding first magnet 21 and third magnet 23 will complete attraction or separation with baffle 713 on car 7, and second magnet 22 limits the end face of third push rod 13, which ensures the position accuracy of third push rod 13 and fourth push rod 14, thereby facilitating the stable folding / opening work of the folding system.

[0067] In the preferred scheme, first telescopic rod 26 and second telescopic rod 27 are respectively arranged on end plate 704 on both sides, first telescopic rod 26 and second telescopic rod 27 are respectively fixed on mounting plate 28, and mounting plate 28 is connected with end plate 704 through screw 29. By this structure, after the earth removal trolley 3 on the lower side is fully loaded, the first telescopic rod 26 is lifted, and the earth removal trolley 1 closes the discharge bin 25 during the advancing process by using the first telescopic rod 26, and the discharge bin 25 starts to temporarily store earth from the belt conveyor 4 after being closed. When the earth removal trolley 1 leaves, the hoisting system 2 lowers the folded earth removal trolley 1, at this time, the second telescopic rod 27 is lifted, and the discharge bin 25 is opened during the process of approaching the belt conveyor 4, at this time, the earth removal trolley reaches the bottom of the discharge bin 25 and starts to load earth. When the earth removal trolley that has completed earth transportation returns to the top pipe, it starts to fold, and the hoisting system hoists it to the upper part of the top pipe, and so on, to complete the whole efficient cycle operation.

[0068] In the preferred scheme, the discharge bin 25 comprises a channel 2501, the bottom of the channel 2501 is inclined to one side of the track 3, the lower part of the channel 2501 is provided with a first discharge port 2503, a sliding plate 2504 is slidably arranged in the channel 2501, the sliding plate 2504 is provided with a second discharge port 2518 matched with the first discharge port 2503, the two sides of the sliding plate 2504 are respectively provided with a second contact plate 2515 and a first contact plate 2514, the second contact plate 2515 and the first contact plate 2514 respectively control the opening or closing of the discharge bin 25 through the first telescopic rod 26 and the second telescopic rod 27. Thus, when the unearthing trolley 1 completes loading and leaves, the first telescopic rod 26 pushes the second contact plate 2515 to push the sliding plate 2504, the second discharge port 2518 and the first discharge port 2503 are misaligned, the channel 2501 is closed, and then the first telescopic rod 26 is immediately retracted. When the unearthing trolley 1 on the pipe is lowered through the hoisting system 2, the car hopper 7 is opened, and the second telescopic rod 27 is lifted. When the unearthing trolley 1 is close to the belt conveyor 4, the second telescopic rod 27 pushes the first contact plate 2514 to change the position of the sliding plate 2504, and then the second discharge port 2518 and the first discharge port 2503 are aligned, the discharge bin 25 is opened, and then the second telescopic rod 27 is retracted. The whole operation is convenient and efficient.

[0069] In the preferred scheme, the inside of the channel 2501 is provided with a convex strip 2505, the convex strip 2505 and the channel 2501 form a sliding groove 2506, the sliding plate 2504 is slidably arranged in the sliding groove 2506, the end of the channel 2501 away from the belt conveyor 4 is provided with a bevel 2502, the upper side of the bevel 2502 is hingedly connected with an expansion plate 2512 through a first round rod 2507, the first round rod 2507 is arranged in a mounting hole 2513, the side of the sliding plate 2504 close to the bevel 2502 is provided with a first adapter table 2508, the two sides of the first adapter table 2508 are respectively provided with notches 2509, the notches 2509 and the convex strip 2505 are slidably connected, the first adapter table 2508 is hingedly connected with a second adapter table 2516 through a second round rod 2517, the second adapter table 2516 is provided with an execution plate 2510, the upper part of the execution plate 2510 is provided with a through slot 2511, the lower side of the expansion plate 2512 is slidably arranged in the execution plate 2510. Thus, the sliding plate 2504 slides smoothly and responds faster. When the discharge bin 25 is closed, the first adapter table 2508 is moved to the bevel 2502, at this time the discharge bin 25 is in the state of maximum loading capacity, the overall loading efficiency is guaranteed, and the occupied space of the discharge bin 25 is smaller. When the discharge bin 25 is opened, the first adapter table 2508 is moved to the side of the second discharge port 2518 close to the bevel 2502, at this time the execution plate 2510 and the expansion plate 2512 cooperate to form an inclined surface, thereby pushing and guiding the earthwork at the bevel 2502 to fall into the car hopper 7 from the second discharge port 2508. The design is ingenious and avoids the accumulation of earthwork in the discharge bin 25.

[0070] In a preferred embodiment, the hoisting system 2 comprises a first wheel slide 206 and a second wheel slide 207 arranged in the top pipe, a winch 209 connected through a lifting cable 208 and a lifting frame 201, the lifting cable 208 being arranged around the first wheel slide 206 and the second wheel slide 207, the bottom of the lifting frame 201 being provided with a lifting ring 202, the lifting frame 201 being connected through a lifting cable 203 and the lifting cable 208, the lifting cable 208 being further provided with a fixed end 204 of a limiter and a movable end 205 of the limiter, the drive trolley 5 comprising a first insertion hole 501 and a first lug plate 502, the chassis 6 comprising a second insertion hole 601 and a second lug plate 602, the first lug plate 502 and the second lug plate 602 being hinged through a bolt 9, the lifting ring 202 being sleeved on the first lifting lug 501 and the second lifting lug 601. The winch 209 is fixed on the side wall of the top pipe, the fixed end 204 of the limiter is fixed on the top of the top pipe, the movable end 205 of the limiter is fixed on the bottom of the lifting cable 208, and the lifting frame 201 is connected with four steel wire ropes 203 at four vertices and converges to a middle point and is connected with the lifting cable 208. By this structure, four lifting rings 202 are arranged on both sides of the lifting frame 201, the lifting rings 202 can be conveniently sleeved in the first lifting lug 501 and the second lifting lug 601, thereby facilitating the lifting of the whole trolley 1, and the operation is simple and the running efficiency is high.

[0071] The folding process is as follows: the driving force oil cylinder 801 is started, generating a pushing force, which drives the driving rod 802 to push the pinion 804, and in turn drives the large gear 805 to rotate, which drives the first displacement gear 807, the second displacement gear 808, the third displacement gear 809 and the fourth displacement gear 810 to rotate. At this time, the toothed structure on the fourth push rod 14 on the first side plate 708 is in engagement with the third displacement gear 809, which first displaces, driving the first side plate 708 to fold. When the first side plate 708 is folded, the third displacement gear 809 and the toothed structure of the fourth push rod 14 are disengaged, and the fourth push rod 14 no longer displaces. Then, the fourth stopper 19 corresponding to the fourth displacement gear 810 on the second side plate 710 collides with the straight extension surface 2404 of the one-way stopper 24 of the third push rod 13, and drives the third push rod 13 to displace, and in turn the fourth displacement gear 810 and the toothed structure of the third push rod 13 engage and continue to displace until the fourth displacement gear 810 and the toothed structure of the third push rod 13 disengage, completing the displacement. The large gear 805 continues to rotate, and the first stopper 16 and the second stopper 17 corresponding to the first displacement gear 807 and the second displacement gear 808 of the end plate 704 rotate to collide with the stopper column 1412 on the first push rod 11 and the second push rod 12, and the first displacement gear 807 and the second displacement gear 808 engage with the toothed structure of the first stopper 16 and the second stopper 17, respectively, to displace, until the first displacement gear 807 and the second displacement gear 808 disengage from the toothed structure of the first stopper 16 and the second stopper 17, respectively, completing the displacement, and the end plate 704 is completely folded.

[0072] After folding is completed, the winch 209 is started, and the lifting frame 201 is lowered. The lifting ring 202 on the lifting frame 201 is manually placed on the lifting lug 501 of the car 1, and the winch 29 is started in the opposite direction to lift the second car 1. As the lifting cable 208 rises, the movable end limiter 205 rises and finally contacts the fixed end limiter 204. At this time, the winch 209 circuit is disconnected, and the lifting system stops working.

[0073] When the first car 1 is full, the pipe pushing is temporarily stopped. The first car 1 transports the earth. The winch 209 is started, and the second car 1 is lowered onto the track 3, and the lifting ring 202 is removed. The folding system 8 is started, and the car body 7 is opened and erected. The car 1 is opened to the belt conveyor 4 below to receive the earth. After the first car 1 is unloaded, it is opened back, and the cycle is repeated.

[0074] The opening process is the opposite of the folding process, wherein the first side plate 708 is "closed first and opened later", the end plate 704 is "closed later and opened first", and the second side plate 710 is "closed in the middle and opened in the middle", so the first side plate 708 and the end plate 704 are respectively provided with a set of stoppers and one-way stoppers, and the second side plate 710 is correspondingly provided with two sets. Each stopper and one-way stopper can realize one-way limiting.

[0075] The above embodiments are only the preferred technical solutions of the present application, and should not be regarded as the limitation of the present application. The protection scope of the present application should be the technical solutions recited in the claims, including the equivalent replacement solutions of the technical features recited in the claims. That is, the equivalent replacement improvements within this range are also within the protection scope of the present application.

Claims

1. A system for earth excavation and circulation in pipe jacking construction, comprising a belt conveyor (4) and an earth removal trolley (1) arranged in the pipe, characterized in that: The belt conveyor (4) is provided with a discharge bin (25) and a hoisting system (2) on one side along the direction of earthwork transportation, the discharge bin (25) and the hoisting system (2) are fixed on the upper part of the pipe jacking, the earth removal trolley (1) is provided with a folding system (8), the opened earth removal trolley (1) is located below the discharge bin (25), the opened earth removal trolley (1) is slidably arranged on the track (3) at the bottom of the pipe jacking, the folded earth removal trolley (1) is detachably hoisted on the hoisting system (2), and the discharge bin (25) is used for buffering and transitioning the earthwork from the belt conveyor (4); The earth removal trolley (1) comprises a chassis (6) and a car hopper (7), the car hopper (7) is arranged on the upper part of the chassis (6), the car hopper (7) comprises a protection plate (701), two end plates (704) are symmetrically arranged on the protection plate (701) along the laying direction of the track (3), a first side plate (708) and a second side plate (710) are arranged between the two end plates (704), the first side plate (708), the second side plate (710), the two end plates (704) and the protection plate (701) form a soil loading space, the folding system (8) is located between the car hopper (7) and the chassis (6), the folding system (8) is used for driving the end plates (704), the first side plate (708) and the second side plate (710) to complete the folding action, a first telescopic rod (26) and a second telescopic rod (27) are further arranged on the two end plates (704) respectively, and the first telescopic rod (26) and the second telescopic rod (27) control the closing and opening of the discharge bin (25) respectively; The protection plate (701) is provided with a third fixed plate (703) on each side along the direction of the track (3), the upper part of the third fixed plate (703) is hingedly connected with the end plate (704), the bottom of the end plate (704) is provided with a third L column (706), the upper side of the third L column (706) is hingedly connected with the third fixed plate (703), the protection plate (701) is provided with a first fixed plate (707) and a second fixed plate (709) on each side along the direction perpendicular to the track (3), the upper part of the first fixed plate (707) and the second fixed plate (709) is hingedly connected with the first side plate (708) and the second side plate (710) respectively, the bottom of the first side plate (708) and the second side plate (710) is provided with a first L column (711) and a second L column (712) respectively, the upper side of the first L column (711) and the second L column (712) is hingedly connected with the first fixed plate (707) and the second fixed plate (709) respectively, the lower side of the third L column (706), the first L column (711) and the second L column (712) is connected with the folding system (8) respectively. The folding system (8) comprises a rotating shaft (803) arranged between the protection plate (701) and the bottom plate (702), wherein the rotating shaft (803) is provided with a small gear (804) and a large gear (805), the small gear (804) is located below the large gear (805), the small gear (804) is in meshing connection with a driving rod (802), one side of the driving rod (802) is provided with a power cylinder (801), the power cylinder (801) is fixedly arranged on the bottom plate (702), and the large gear (805) is in meshing connection with a first displacement gear (807), a second displacement gear (808), a third displacement gear (809) and a fourth displacement gear (810) on the outer side thereof; The first displacement gear (807) is provided with a first push rod (11) on one side, the second displacement gear (808) is provided with a second push rod (12) on one side, the third displacement gear (809) is provided with a third push rod (13) on one side, the fourth displacement gear (810) is provided with a fourth push rod (14) on one side, the distal ends of the first push rod (11), the second push rod (12), the third push rod (13) and the fourth push rod (14) are hingedly connected to one side of a rotating rod (10), the other side of the rotating rod (10) is hingedly connected to the third L-shaped column (706), the first L-shaped column (711) and the second L-shaped column (712), and the folding system (8) is further provided with four sliding rods (806), the sliding rods (806) are fixedly arranged at the bottom of the protection plate (701), and the first push rod (11), the second push rod (12), the third push rod (13) and the fourth push rod (14) are in sliding connection with the sliding rods (806).

2. The system for earth circulation and transportation in pipe jacking construction according to claim 1, characterized in that: The car hopper (7) further comprises a bottom plate (702) fixedly arranged on the bottom disc (6), the folding system (8) is located between the protection plate (701) and the bottom plate (702), and four limiting plates (705) are arranged on the outer side of the protection plate (701) in a circumferential direction, and the limiting plates (705) are used for supporting and limiting the end plate (704), the first side plate (708) and the second side plate (710).

3. The system for earth circulation and transportation in pipe jacking construction according to claim 1, characterized in that: The first displacement gear (807) is fixedly provided with a first stop rod (16), the second displacement gear (808) is fixedly provided with a second stop rod (17), the directions of the first stop rod (16) and the second stop rod (17) are opposite, the third displacement gear (809) is fixedly provided with a third stop rod (18), the fourth displacement gear (810) is fixedly provided with a fourth stop rod (19) and a fifth stop rod (20), the directions of the third stop rod (18) and the fifth stop rod (20) are opposite, the directions of the fourth stop rod (19) and the fifth stop rod (20) are perpendicular, the directions of the third stop rod (18) and the second stop rod (17) are the same, the first push rod (11), the second push rod (12) and the fourth push rod (14) are respectively provided with one-way stop rods (24) used for cooperating with the first stop rod (16), the second stop rod (17) and the third stop rod (18), and the third push rod (13) is provided with two one-way stop rods (24) used for cooperating with the fourth stop rod (19) and the fifth stop rod (20). The one-way stop rod (24) comprises a sleeve (2401), a cavity (2405) is arranged in the sleeve (2401), a slide (2408) is arranged in the upper part of the cavity (2405), a spring (2406) is arranged in the cavity (2405), a base (2407) is supported on the spring (2406), a protrusion (2402) is arranged on the top of the base (2407), the protrusion (2402) is slidably arranged in the slide (2408), and inclined surfaces (2403) and straight surfaces (2404) are arranged on the two sides of the protrusion (2402).

4. The system for earth circulation and transportation in pipe jacking construction according to claim 1, characterized in that: The first telescopic rod (26) and the second telescopic rod (27) are arranged on the end plates (704) on the two sides in a staggered manner, and the first telescopic rod (26) and the second telescopic rod (27) are fixedly arranged on the mounting plate (28), and the mounting plate (28) is connected with the end plate (704) through the screw (29).

5. The system for earth circulation and transportation in pipe jacking construction according to claim 1, characterized in that: The discharge bin (25) comprises a channel (2501), the bottom of the channel (2501) is inclined to one side of the track (3), a first discharging opening (2503) is arranged in the lower part of the channel (2501), a sliding plate (2504) is slidably arranged in the channel (2501), a second discharging opening (2518) is arranged on the sliding plate (2504) and matched with the first discharging opening (2503), a second contact plate (2515) and a first contact plate (2514) are arranged on the two sides of the sliding plate (2504), and the second contact plate (2515) and the first contact plate (2514) control the opening or closing of the discharge bin (25) through the first telescopic rod (26) and the second telescopic rod (27).

6. The system for earth circulation and transportation in pipe jacking construction according to claim 5, characterized in that: The inner lower side of the channel (2501) is provided with a convex strip (2505), the convex strip (2505) and the channel (2501) form a sliding groove (2506), the sliding plate (2504) is slidably arranged in the sliding groove (2506), one end of the channel (2501) away from the belt conveyor (4) is provided with an inclined opening (2502), the upper side of the inclined opening (2502) is hingedly connected with an expansion plate (2512) through a first circular rod (2507), the first circular rod (2507) is arranged in a mounting hole (2513), one side of the sliding plate (2504) close to the inclined opening (2502) is provided with a first switching table (2508), the two sides of the first switching table (2508) are respectively provided with notches (2509), the notches (2509) and the convex strip (2505) are slidably connected, the first switching table (2508) is hingedly connected with a second switching table (2516) through a second circular rod (2517), the second switching table (2516) is provided with an execution plate (2510), the upper part of the execution plate (2510) is provided with a through groove (2511), and the lower side of the expansion plate (2512) is slidably arranged in the execution plate (2510).

7. The system for earth circulating and transporting in pipe jacking construction process according to claim 1, characterized in that: The hoisting system (2) comprises a first wheel slide (206) and a second wheel slide (207) arranged in the pipe, a winch (209) connected through a lifting cable (208) and a lifting frame (201), the lifting cable (208) is arranged on the first wheel slide (206) and the second wheel slide (207), the bottom of the lifting frame (201) is provided with a lifting ring (202), the lifting frame (201) is connected through a lifting cable (203) and the lifting cable (208), the lifting cable (208) is further provided with a limiter fixed end (204) and a limiter movable end (205), the driving trolley (5) comprises a first jack (501) and a first lug plate (502), the chassis (6) comprises a second jack (601) and a second lug plate (602), the first lug plate (502) and the second lug plate (602) are hinged through a bolt (9), and the lifting ring (202) is sleeved on the first jack (501) and the second jack (601).

Images