Tube push bench head catching device in turbid deepwater environment and hoisting method thereof

Abstract

The invention discloses a pipe jacking machine head catching device in a turbid deepwater environment and a hoisting method thereof.The pipe jacking machine head catching device comprises a hoisting assembly, the hoisting assembly comprises a pipe jacking machine body, a sealing cover, a hinge base, a baffle, a traction piece, an inflation piece, a floating block, a limiting piece and a triggering piece, a hoisting cavity is formed in the pipe jacking machine body, and the sealing cover is arranged at the top of the hoisting cavity; the hinge seat is fixed in the hoisting cavity, the baffle is fixed on one side of the hinge seat, the traction piece is arranged on the inner wall of the hoisting cavity, the floating blocks are fixed on the two sides of the inner wall of the hoisting cavity, the limiting pieces are arranged on the two sides of the floating blocks, and the triggering piece is arranged on the inflating piece. Through cooperation of the hoisting assembly and the fastening assembly, the marker can be automatically lifted when the machine head of the pipe jacking machine falls into water, the lifting hook can reach the hoisting position of the machine head more conveniently through the marker, the hoisting efficiency is higher, and the working safety of frogmen is greatly guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of pipe jacking machines, in particular to a pipe jacking machine head capturing device in a turbid deep water environment and a hoisting method thereof. Background Art

[0002] The pipe jacking machine is mainly composed of a rotary excavation system, a main top hydraulic propulsion system, a soil conveying system, a grouting system, a measuring equipment, a ground hoisting equipment and an electrical system. The rotary excavation system (commonly known as the "machine head") is mainly composed of a front steel shell, a rear steel shell, a cutting mechanism, a cutting disc, a cutter disc reducer, a mud delivery and discharge mechanism, a hydraulic power unit, a deviation correction hydraulic cylinder, a waterproof ring, a cutting head, a cutter disc rotating shaft, an electrical system, an automatic control system and ancillary devices. During the use of the pipe jacking machine, it will be used in turbid water environments. The turbid water environment and the deep water pressure will make it difficult to find the position of the machine head hoisting by manual visual means. There are also certain safety hazards when the frogman hangs the hook on the pipe jacking machine. Summary of the invention

[0003] Purpose of the invention: The problem to be solved by the present invention is that the pipe jacking machine is used in turbid water environment during use. The turbid water environment and the high water pressure make it difficult to find the position of the machine head hoisting by manual visual means. There are also certain safety hazards when the frogman hangs the hook on the pipe jacking machine.

[0004] Technical solution: The present invention provides a head capture device for a pipe jacking machine in a turbid deep water environment, which comprises a lifting assembly, including a pipe jacking body, a cover, a hinged seat, a baffle, a traction member, an inflatable member, a float, a limit member and a trigger member, wherein a lifting chamber is opened on the pipe jacking body, the cover is arranged at the top of the lifting chamber, the hinged seat is fixed in the lifting chamber, the baffle is fixed on one side of the hinged seat, the traction member is arranged on the inner wall of the lifting chamber, the float is fixed on both sides of the inner wall of the lifting chamber, the limit member is arranged on both sides of the float, and the trigger member is arranged on the inflatable member; and a fastening assembly, which is arranged at the bottom of the cover, comprises a first fastener, a second fastener, a trigger rod and a first sealing film, the first fastener is arranged on both sides of the inflatable member, the second fastener is arranged at the four corners of the bottom of the cover, the trigger rod is fixed on both sides of the limit member, and it cooperates with the second fastener, and the first sealing film is fixed to the four corners of the top of the cover.

[0005] Furthermore, the traction member of the capture device includes a winding rod, a traction rope and an airbag, the winding rod is rotatably connected to the inner wall of the lifting chamber, the traction rope is wound around the surface of the winding rod, and the airbag is fixed to the end of the traction rope and is located at the bottom of the cover.

[0006] Furthermore, the inflatable part of the capture device includes an inflatable tank, a ventilation pipe, a sealing ring, a second sealing membrane, a movable cone, a connecting rod, a movable ring and a fixed ring. The inflatable tank is located on both sides of the inner wall of the lifting chamber, the ventilation pipe is fixed to the top of the inflatable tank, and its end is connected to the airbag, the sealing ring is fixed in the ventilation pipe, the second sealing membrane is fixed in the ventilation pipe and is located above the sealing ring, the movable cone slides in the sealing ring, the connecting rod is fixed on both sides of the movable cone, the movable ring is sleeved on the surface of the ventilation pipe, the end of the connecting rod is fixed to the inner wall of the movable ring, and the fixed ring is fixed to the surface of the ventilation pipe and is located above the movable ring.

[0007] Furthermore, the limiting component of the capture device includes a fixed block, a guide rod, a top block and a first spring, the fixed block is fixed to the bottom of both sides of the floating block, the guide rod is fixed in the hoisting chamber, the fixed block slides on the guide rod, the top block is fixed to the top of the guide rod, and the two ends of the first spring are respectively fixed to the top block and the fixed block.

[0008] Furthermore, the trigger member of the capture device includes a connecting rod, a rotating rod, a movable rod, a protrusion and an inclined plate. The connecting rod is fixed on both sides of the top of the floating block, the rotating rod is rotatably connected to the end of the connecting rod, an annular groove is provided on the surface of the movable ring, the end of the rotating rod is located in the annular groove, the movable rod slides in the rotating rod, the protrusion is fixed on both sides of the movable rod, and the inclined plate is fixed on both sides of the fixed ring and cooperates with the protrusion.

[0009] Furthermore, the first fastener of the capture device includes a movable plate, a clamping plate and a pressure plate. The movable plate is located on both sides of the bottom of the air tank, the clamping plate is fixed to the bottom of both sides of the air tank, and a clamping groove is provided on the inner side of the movable plate to cooperate with it. The pressure plate is fixed to one side of the floating block and cooperates with the movable plate.

[0010] Furthermore, the first fastener of the capture device also includes a fixed plate, a fixed rod and a second spring. The fixed plate is fixed in the lifting chamber and is located outside the movable plate. The fixed rod is fixed to one side of the fixed plate. The movable plate slides on the fixed rod. Both ends of the second spring are respectively fixed to the two movable plates.

[0011] Furthermore, the second fastener of the capture device includes a fixed hook plate, a rotating hook plate and a movable frame, the fixed hook plate is fixed to the four corners of the bottom of the cover, the rotating hook plate is rotatably connected in the hanging chamber and cooperates with the fixed hook plate, a through hole is opened in the middle, the movable frame slides in the through hole and cooperates with the trigger rod.

[0012] Furthermore, the second fastener of the capture device also includes a third spring, two ends of which are respectively fixed to the inner wall of the through hole and the movable frame.

[0013] Furthermore, a preferred solution of the head capture device of the pipe jacking machine in a turbid deep water environment and the hoisting method thereof includes:

[0014] The cover is opened by water pressure and the floating block;

[0015] At this time, the air bag is inflated through the air tank and made to float upward;

[0016] When the air bag moves to the water surface, the hook can move downward along the air bag and the traction rope into the lifting chamber;

[0017] After that, the lifting hook is installed in the articulated seat and the lifting operation can be carried out.

[0018] Beneficial effect: Compared with the prior art, the significant advantages of the present invention are: through the cooperation of the lifting assembly and the fastening assembly, the present invention can automatically raise the marker when the head of the pipe jacking machine falls into the water. Through the marker, the hook can more conveniently reach the head lifting position, the lifting efficiency is higher, and the safety of the frogman's work is greatly guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall structural diagram of the head capture device of the pipe jacking machine in turbid deep water environment and its hoisting method;

[0020] Figure 2 It is a structural diagram of the connection between the lifting assembly and the fastening assembly of the head capture device of the pipe jacking machine in a turbid deep water environment and the lifting method thereof;

[0021] Figure 3 A cross-sectional view of a traction member of a pipe jacking machine head capture device and a hoisting method thereof in a turbid deep water environment;

[0022] Figure 4 A pipe jacking machine head capture device and a hoisting method thereof for a turbid deep water environment Figure 3 Enlarged view of inner part A;

[0023] Figure 5 A second fastener structure diagram of a pipe jacking machine head capture device and a hoisting method thereof in a turbid deep water environment;

[0024] Figure 6 A pipe jacking machine head capture device and a hoisting method thereof for a turbid deep water environment Figure 5 Enlarged view of inner part B;

[0025] Figure 7 A cross-sectional view of an inflatable component of a pipe jacking machine head capture device and a hoisting method thereof in a turbid deep water environment;

[0026] Figure 8 The present invention is a structural diagram of a trigger component of a pipe jacking machine head capture device and a lifting method thereof in a turbid deep water environment. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, and this embodiment provides a pipe jacking machine head capture device and a hoisting method thereof in a turbid deep water environment. The pipe jacking machine head capture device and a hoisting method thereof in a turbid deep water environment include a hoisting assembly 100 and a fastening assembly 200. The hoisting assembly 100 can enable the hook to find the hoisting position of the head more accurately and quickly, thereby improving the hoisting efficiency. At the same time, the fastening assembly 200 can more conveniently control the opening of the hoisting position to prevent it from opening during the operation of the pipe jacking machine head.

[0031] The lifting assembly 100 includes a jacking tube body 101, a cover 102, an articulated seat 103, a baffle 104, a traction member 105, an inflatable member 106, a float 107, a limit member 108 and a trigger member 109. A lifting chamber S is opened on the jacking tube body 101, the cover 102 is arranged on the top of the lifting chamber S, the articulated seat 103 is fixed in the lifting chamber S, the baffle 104 is fixed on one side of the articulated seat 103, the traction member 105 is arranged on the inner wall of the lifting chamber S, the float 107 is fixed on both sides of the inner wall of the lifting chamber S, the limit members 108 are arranged on both sides of the float 107, and the trigger member 109 is arranged on the inflatable member 106.

[0032] At least two lifting chambers S are provided with a certain angle between them to prevent the two lifting chambers S from being pressed down at the same time when the pipe jacking machine falls to the bottom of the water, affecting subsequent use. The staggered distribution can ensure that at least one lifting chamber S is located in the water, and it is also convenient to turn over the machine head during lifting to expose other lifting chambers S, thereby facilitating subsequent lifting operations.

[0033] The baffle 104 is fixed to the top of one side of the rotating plate in the articulated seat 103. It is used to limit the rotating plate, increase its hardness and facilitate the lifting operation of the hook. When the nose of the machine falls into the water, the traction member 105 is inflated through the inflatable member 106 to make it float on the water surface, so that the staff can place the hook in the articulated seat 103 along the traction member 105 to perform the lifting operation.

[0034] When it has not fallen into the water, there is no water in the lifting chamber S. When the nose of the aircraft falls into the water, the water will enter the lifting chamber S due to the water pressure, lifting the float 107. Therefore, through the cooperation between the float 107, the limit member 108 and the trigger member 109, the inflatable member 106 follows the traction member 105 to rise and continues to inflate it, thereby improving its floating efficiency and convenience without the need for additional manual operation.

[0035] The fastening assembly 200 is arranged at the bottom of the cover 102, and includes a first fastener 201, a second fastener 202, a trigger rod 203 and a first sealing film 204. The first fastener 201 is arranged on both sides of the inflatable member 106, and the second fastener 202 is arranged at the four corners of the bottom of the cover 102. The trigger rod 203 is fixed on both sides of the limit member 108, which cooperates with the second fastener 202, and the first sealing film 204 is fixed at the four corners of the top of the cover 102.

[0036] The first fastener 201 is used to fix the inflatable member 106 to prevent the pipe jacking machine from shaking during operation and accidentally performing an inflation operation, thereby greatly improving the safety of the equipment. The second fastener 202 is used to fix the cover 102 so that it can better seal the lifting chamber S to prevent water from entering when the machine head has not fallen into the water. The trigger rod 203 cooperates with the second fastener 202 to open the cover 102.

[0037] The first sealing membrane 204 can be made of geomembrane or cellulose membrane, etc., which can be designed to have a certain pressure resistance. During the operation of the pipe jacking machine, water that penetrates the soil will not damage the first sealing membrane 204, and the cover 102 is also provided with some water guide grooves to prevent excessive water from accumulating near the first sealing membrane 204 for a long time during use. When the machine head enters the water, the first sealing membrane 204 will rupture due to the increase in water pressure, allowing water to enter the lifting chamber S. These technicians in this field can design it according to the actual use environment and water pressure environment.

[0038] Example 2

[0039] Reference Figures 1 to 8 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0040] Specifically, the traction member 105 includes a winding rod 105a, a traction rope 105b and an airbag 105c. The winding rod 105a is rotatably connected to the inner wall of the lifting chamber S, the traction rope 105b is wound around the surface of the winding rod 105a, and the airbag 105c is fixed to the end of the traction rope 105b and is located at the bottom of the cover 102.

[0041] The winding rod 105a is rotatably connected to the inner wall of the lifting chamber S through a bearing, and the end of the traction rope 105b is passed around the bottom of the hinged seat 103 and extended upward to the bottom of the airbag 105c. A small hole is provided at the end of the rotating plate on the hinged seat 103 for the traction rope 105b to pass through, so that when the airbag 105c drives the traction rope 105b to float up, the traction rope 105b is always located at the end of the rotating plate on the hinged seat 103. When the hook descends along the traction rope 105b, it will hit the rotating plate and press it downward first. When the two are separated, the rotating plate is reset to fix the hook. A torsion spring is provided at the rotating position of the rotating plate to facilitate its reset. This part is not shown in the figure.

[0042] The inflatable member 106 includes an inflatable tank 106a, a vent pipe 106b, a sealing ring 106c, a second sealing film 106d, a movable cone 106e, a connecting rod 106f, a movable ring 106g and a fixed ring 106h. The inflatable tank 106a is located on both sides of the inner wall of the hoisting chamber S. The vent pipe 106b is fixed to the top of the inflatable tank 106a, and its end is connected to the airbag 105c. The sealing ring 106c is fixed in the vent pipe 106b. The second sealing membrane 106d is fixed in the ventilation pipe 106b and is located above the sealing ring 106c. The movable cone 106e slides in the sealing ring 106c. The connecting rod 106f is fixed on both sides of the movable cone 106e. The movable ring 106g is sleeved on the surface of the ventilation pipe 106b. The end of the connecting rod 106f is fixed to the inner wall of the movable ring 106g. The fixed ring 106h is fixed to the surface of the ventilation pipe 106b and is located above the movable ring 106g.

[0043] The inflation tank 106a is provided with high-pressure gas inside, and the high-pressure gas can be delivered to the airbag 105c through the ventilation pipe 106b. A one-way valve can be installed at the connection position between the airbag 105c and the ventilation pipe 106b to prevent gas leakage in the airbag 105c. This part is not shown in the figure.

[0044] The sealing ring 106c and the movable cone 106e are in a closed state in the initial state, which can play a certain sealing effect. There are two connecting rods 106f. Rectangular grooves for its movement are opened on both sides of the vent pipe 106b, and the groove is always located on the inner side of the movable ring 106g. The movable ring 106g and the vent pipe 106b are sealed to prevent gas leakage. The second sealing film 106d further plays a sealing effect. When the movable ring 106g moves upward, it drives the movable cone 106e to move upward. The top of the movable cone 106e is provided with a pointed cone, which can puncture the second sealing film 106d during the upward movement, so that the high-pressure gas in the inflation tank 106a rushes out, and the second sealing film 106d is punctured by the gas, so that a large amount of gas can enter the airbag 105c.

[0045] The limiting member 108 includes a fixed block 108a, a guide rod 108b, a top block 108c and a first spring 108d. The fixed block 108a is fixed to the bottom of both sides of the floating block 107, the guide rod 108b is fixed in the lifting chamber S, the fixed block 108a slides on the guide rod 108b, the top block 108c is fixed to the top of the guide rod 108b, and the two ends of the first spring 108d are respectively fixed to the top block 108c and the fixed block 108a.

[0046] The fixed block 108a slides on the two guide rods 108b to limit the floating block 107 and prevent it from shifting during the up and down movement. The top block 108c is used to prevent the fixed block 108a from detaching from the guide rods 108b. The first spring 108d applies a downward thrust to the fixed block 108a and the floating block 107, so that they contact the inner wall of the lifting chamber S in the initial state, thereby preventing it from shaking during the operation of the pipe jacking machine head.

[0047] The trigger member 109 includes a connecting rod 109a, a rotating rod 109b, a movable rod 109c, a protrusion 109d and an inclined plate 109e. The connecting rod 109a is fixed on both sides of the top of the floating block 107, the rotating rod 109b is rotatably connected to the end of the connecting rod 109a, an annular groove M is provided on the surface of the movable ring 106g, the end of the rotating rod 109b is located in the annular groove M, the movable rod 109c slides in the rotating rod 109b, the protrusions 109d are fixed on both sides of the movable rod 109c, and the inclined plate 109e is fixed on both sides of the fixed ring 106h and cooperates with the protrusions 109d.

[0048] The connecting rod 109a is connected to the rotating rod 109b by an axis rotation. The rotating rod 109b is provided with a chamber inside. The movable rod 109c moves in the chamber. A spring is fixed in the chamber to apply a force to the movable rod 109c to move in the direction of the connecting rod 109a. In the initial state, the movable rod 109c is located between the connecting rod 109a and the rotating rod 109b. The position of the rotating shaft cannot be rotated downward due to the limit of the movable rod 109c. When the floating block 107 drives the connecting rod 109a and the rotating rod 109b, the movable rod 109c is rotated downward. When moving upward, the rotating rod 109b pushes the movable ring 106g upward until it contacts the fixed ring 106h, and the groove at the bottom of the inclined plate 109e will drive the protrusion 109d and the movable rod 109c in the direction of the rotating rod 109b, so that the movable rod 109c is separated from the connecting rod 109a. At this time, the rotating axis between the connecting rod 109a and the rotating rod 109b loses its limit, and the rotating rod 109b will rotate and disengage from the annular groove M to prevent it from hindering the inflation tank 106a from following the movement of the airbag 105c.

[0049] The first fastener 201 includes a movable plate 201a, a clamping plate 201b and a pressure plate 201c. The movable plate 201a is located on both sides of the bottom of the air tank 106a. The clamping plate 201b is fixed to the bottom of both sides of the air tank 106a. A clamping groove P is provided on the inner side of the movable plate 201a to cooperate with it. The pressure plate 201c is fixed to one side of the floating block 107 and cooperates with the movable plate 201a.

[0050] The outer side of the movable plate 201a is inclined. In the initial state, the pressure plate 201c presses the movable plate 201a inward, so that the two clamping plates 201b are clamped in the clamping groove P, thereby limiting the inflation tank 106a to prevent it from shaking or deflecting during the operation of the pipe jacking machine.

[0051] The first fastener 201 also includes a fixed plate 201d, a fixed rod 201e and a second spring 201f. The fixed plate 201d is fixed in the lifting chamber S and is located outside the movable plate 201a. The fixed rod 201e is fixed to one side of the fixed plate 201d. The movable plate 201a slides on the fixed rod 201e. The two ends of the second spring 201f are respectively fixed to the two movable plates 201a.

[0052] The fixed rod 201e and the fixed plate 201d are used to guide and limit the movable plate 201a to prevent it from deviating during the left and right movement. The second spring 201f applies a repulsive force to the two movable plates 201a to move away from each other. When the floating block 107 moves upward, the pressure plate 201c separates from the movable plate 201a. At this time, the second spring 201f pushes the two movable plates 201a away from the air tank 106a, so that the card plate 201b is disengaged from the card slot P, and the limiting effect on the air tank 106a can be released.

[0053] The second fastener 202 includes a fixed hook plate 202a, a rotating hook plate 202b and a movable frame 202c. The fixed hook plate 202a is fixed to the four corners of the bottom of the cover 102. The rotating hook plate 202b is rotatably connected in the hanging chamber S and cooperates with the fixed hook plate 202a. A through hole U is opened in the middle thereof. The movable frame 202c slides in the through hole U and cooperates with the trigger rod 203.

[0054] Hooks are fixed on the sides of the fixed hook plate 202a and the rotating hook plate 202b that are close to each other, and the two are fixed to each other. The movable frame 202c is U-shaped. In the initial state, it is located at the position of the rotating shaft at the bottom of the rotating hook plate 202b, so that it cannot rotate, thereby making the connection between the fixed hook plate 202a and the rotating hook plate 202b more stable. The trigger rod 203 is L-shaped. When the floating block 107 moves upward, the trigger rod 203 moves upward with it, and drives the movable frame 202c to move upward through the trigger rod 203 until it is separated from the rotating shaft at the bottom of the rotating hook plate 202b, so that the rotating hook plate 202b can rotate, and the side of the movable frame 202c close to the trigger rod 203 is an inclined surface. When the trigger rod 203 continues to move upward, it will move on the inclined surface, thereby driving the movable frame 202c and the rotating hook plate 202b to rotate, so that they are separated from the fixed hook plate 202a, thereby causing the cover 102 to fall off.

[0055] The second fastener 202 further includes a third spring 202d, two ends of which are respectively fixed to the inner wall of the through hole U and the movable frame 202c.

[0056] The third spring 202d applies a thrust to the movable frame 202c, so that it is located at the position of the rotation axis at the bottom of the rotating hook plate 202b in the initial state, to avoid its deviation caused by shaking or the like.

[0057] During use, when the head of the pipe jacking machine falls into the water, the first sealing membrane 204 is ruptured due to the pressure of the water, so that water enters the lifting chamber S, and the float 107 rises due to the strong buoyancy of the water. During its upward movement, the trigger rod 203 moves upward with it, and drives the movable frame 202c to move upward through the trigger rod 203 until it is separated from the bottom rotating shaft of the rotating hook plate 202b, so that the rotating hook plate 202b can rotate, and the side of the movable frame 202c close to the trigger rod 203 is inclined. When the trigger rod 203 continues to move upward, it will move on the inclined surface, thereby driving the movable frame 202c and the rotating hook plate 202b to rotate, so that they are separated from the fixed hook plate 202a, thereby causing the cover 102 to fall off.

[0058] At the same time, when the floating block 107 drives the connecting rod 109a and the rotating rod 109b to move upward, the rotating rod 109b lifts the movable ring 106g upward, driving the movable cone 106e to move upward. The movable cone 106e is provided with a pointed cone at the top, which can puncture the second sealing film 106d during the upward movement, so that the high-pressure gas in the inflation tank 106a rushes out, and the second sealing film 106d is broken by the gas, so that a large amount of gas can enter the airbag 105c. When the movable ring 106g contacts the fixed ring 106h, the groove at the bottom of the inclined plate 109e will drive the protrusion 109d and the movable rod 109c in the direction of the rotating rod 109b, so that the movable rod 109c is separated from the connecting rod 109a. At this time, the rotating shaft between the connecting rod 109a and the rotating rod 109b loses its limit, the rotating rod 109b will rotate, and disengage from the annular groove M to prevent it from hindering the inflation tank 106a from moving with the airbag 105c.

[0059] At the same time, the pressure plate 201c is separated from the movable plate 201a. At this time, the second spring 201f pushes the two movable plates 201a away from the gas tank 106a, so that the card plate 201b is disengaged from the card slot P, and the limiting effect on the gas tank 106a can be released, so that the high-pressure gas in the gas tank 106a enters the air bag 105c, and the air bag 105c is driven by the buoyancy of the water to drive the traction rope 105b to float up, and the traction rope 105b is always located at the end of the rotating plate on the hinged seat 103. When the hook descends along the traction rope 105b, it will hit the rotating plate and press it downward first. When the two are separated, the rotating plate is reset to fix the hook, which greatly facilitates the installation of the hook and brings great convenience to the lifting work.

[0060] Example 3

[0061] Reference Figures 1 to 8 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0062] Specifically, the following lifting methods are also included:

[0063] During use, when the head of the pipe jacking machine falls into the water, the first sealing membrane 204 is ruptured due to the pressure of the water, so that water enters the lifting chamber S, and the float 107 rises due to the strong buoyancy of the water. During its upward movement, the trigger rod 203 moves upward with it, and drives the movable frame 202c to move upward through the trigger rod 203 until it is separated from the bottom rotating shaft of the rotating hook plate 202b, so that the rotating hook plate 202b can rotate, and the side of the movable frame 202c close to the trigger rod 203 is inclined. When the trigger rod 203 continues to move upward, it will move on the inclined surface, thereby driving the movable frame 202c and the rotating hook plate 202b to rotate, so that they are separated from the fixed hook plate 202a, thereby causing the cover 102 to fall off.

[0064] At the same time, when the floating block 107 drives the connecting rod 109a and the rotating rod 109b to move upward, the rotating rod 109b lifts the movable ring 106g upward, driving the movable cone 106e to move upward. The movable cone 106e is provided with a pointed cone at the top, which can puncture the second sealing film 106d during the upward movement, so that the high-pressure gas in the inflation tank 106a rushes out, and the second sealing film 106d is broken by the gas, so that a large amount of gas can enter the airbag 105c. When the movable ring 106g contacts the fixed ring 106h, the groove at the bottom of the inclined plate 109e will drive the protrusion 109d and the movable rod 109c in the direction of the rotating rod 109b, so that the movable rod 109c is separated from the connecting rod 109a. At this time, the rotating shaft between the connecting rod 109a and the rotating rod 109b loses its limit, the rotating rod 109b will rotate, and disengage from the annular groove M to prevent it from hindering the inflation tank 106a from moving with the airbag 105c.

[0065] At the same time, the pressure plate 201c is separated from the movable plate 201a. At this time, the second spring 201f pushes the two movable plates 201a away from the gas tank 106a, so that the card plate 201b is disengaged from the card slot P, and the limiting effect on the gas tank 106a can be released, so that the high-pressure gas in the gas tank 106a enters the air bag 105c, and the air bag 105c is driven by the buoyancy of the water to drive the traction rope 105b to float up, and the traction rope 105b is always located at the end of the rotating plate on the hinged seat 103. When the hook descends along the traction rope 105b, it will hit the rotating plate and press it downward first. When the two are separated, the rotating plate is reset to fix the hook, which greatly facilitates the installation of the hook and brings great convenience to the lifting work.

Claims

1. A head capture device for a pipe jacking machine in a turbid deep water environment, characterized in that: include, A lifting assembly (100) comprises a pipe-jacking body (101), a cover (102), a hinged seat (103), a baffle (104), a traction member (105), an inflatable member (106), a floating block (107), a limit member (108) and a trigger member (109), wherein a lifting chamber (S) is provided on the pipe-jacking body (101), the cover (102) is arranged on the top of the lifting chamber (S), and the hinged seat (103) is provided on the hinged seat (104). 03) is fixed in the hoisting chamber (S), the baffle (104) is fixed to one side of the hinge seat (103), the traction member (105) is arranged on the inner wall of the hoisting chamber (S), the floating block (107) is fixed to both sides of the inner wall of the hoisting chamber (S), the limiting member (108) is arranged on both sides of the floating block (107), and the trigger member (109) is arranged on the inflatable member (106); and, The fastening assembly (200) is arranged at the bottom of the cover (102), and comprises a first fastening member (201), a second fastening member (202), a trigger rod (203) and a first sealing film (204); the first fastening member (201) is arranged at both sides of the inflatable member (106); the second fastening member (202) is arranged at the four corners of the bottom of the cover (102); the trigger rod (203) is fixed at both sides of the limiting member (108) and cooperates with the second fastening member (202); and the first sealing film (204) is fixed at the four corners of the top of the cover (102).

2. The head capture device for a pipe jacking machine in a turbid deep water environment as claimed in claim 1, characterized in that: The traction member (105) comprises a winding rod (105a), a traction rope (105b) and an air bag (105c); the winding rod (105a) is rotatably connected to the inner wall of the hoisting chamber (S); the traction rope (105b) is wound around the surface of the winding rod (105a); and the air bag (105c) is fixed to the end of the traction rope (105b) and is located at the bottom of the cover (102).

3. The head capture device for a pipe jacking machine in a turbid deep water environment as claimed in claim 2, characterized in that: The inflatable component (106) includes an inflatable tank (106a), a vent pipe (106b), a sealing ring (106c), a second sealing membrane (106d), a movable cone (106e), a connecting rod (106f), a movable ring (106g) and a fixed ring (106h). The inflatable tank (106a) is located on both sides of the inner wall of the hoisting chamber (S). The vent pipe (106b) is fixed to the top of the inflatable tank (106a), and its end is connected to the airbag (105c). The sealing ring (106c) is fixed in the vent pipe (106b). The second sealing membrane (106d) is movable. The sealing film (106d) is fixed in the ventilation pipe (106b) and is located above the sealing ring (106c); the movable cone (106e) slides in the sealing ring (106c); the connecting rod (106f) is fixed on both sides of the movable cone (106e); the movable ring (106g) is sleeved on the surface of the ventilation pipe (106b); the end of the connecting rod (106f) is fixed to the inner wall of the movable ring (106g); and the fixed ring (106h) is fixed to the surface of the ventilation pipe (106b) and is located above the movable ring (106g).

4. The head capture device for a pipe jacking machine in a turbid deep water environment as claimed in claim 3, characterized in that: The limiting member (108) comprises a fixed block (108a), a guide rod (108b), a top block (108c) and a first spring (108d); the fixed block (108a) is fixed to the bottom of both sides of the floating block (107); the guide rod (108b) is fixed in the hanging chamber (S); the fixed block (108a) slides on the guide rod (108b); the top block (108c) is fixed to the top of the guide rod (108b); and the two ends of the first spring (108d) are respectively fixed to the top block (108c) and the fixed block (108a).

5. The head capture device for a pipe jacking machine in a turbid deep water environment as claimed in claim 3 or 4, characterized in that: The trigger member (109) comprises a connecting rod (109a), a rotating rod (109b), a movable rod (109c), a protrusion (109d) and an inclined plate (109e); the connecting rod (109a) is fixed to both sides of the top of the floating block (107); the rotating rod (109b) is rotatably connected to the end of the connecting rod (109a); an annular groove (M) is provided on the surface of the movable ring (106g); the end of the rotating rod (109b) is located in the annular groove (M); the movable rod (109c) slides in the rotating rod (109b); the protrusion (109d) is fixed to both sides of the movable rod (109c); the inclined plate (109e) is fixed to both sides of the fixed ring (106h) and cooperates with the protrusion (109d).

6. The head capture device for a pipe jacking machine in a turbid deep water environment as claimed in claim 5, characterized in that: The first fastener (201) comprises a movable plate (201a), a clamping plate (201b) and a pressure plate (201c); the movable plate (201a) is located at two sides of the bottom of the air tank (106a); the clamping plate (201b) is fixed to the bottom of two sides of the air tank (106a); a clamping groove (P) cooperating with the movable plate (201a) is provided on the inner side of the movable plate (201a); the pressure plate (201c) is fixed to one side of the floating block (107) and cooperates with the movable plate (201a).

7. The head capture device for a pipe jacking machine in a turbid deep water environment as claimed in claim 6, characterized in that: The first fastener (201) also includes a fixed plate (201d), a fixed rod (201e) and a second spring (201f); the fixed plate (201d) is fixed in the hoisting chamber (S) and is located outside the movable plate (201a); the fixed rod (201e) is fixed to one side of the fixed plate (201d); the movable plate (201a) slides on the fixed rod (201e); and the two ends of the second spring (201f) are respectively fixed to the two movable plates (201a).

8. The head capture device for a pipe jacking machine in a turbid deep water environment as claimed in claim 6 or 7, characterized in that: The second fastener (202) includes a fixed hook plate (202a), a rotating hook plate (202b) and a movable frame (202c), wherein the fixed hook plate (202a) is fixed to the four corners of the bottom of the cover (102), the rotating hook plate (202b) is rotatably connected in the hanging chamber (S) and cooperates with the fixed hook plate (202a), and a through hole (U) is opened in the middle thereof, and the movable frame (202c) slides in the through hole (U) and cooperates with the trigger rod (203).

9. The head capture device for a pipe jacking machine in a turbid deep water environment as claimed in claim 8, characterized in that: The second fastener (202) also includes a third spring (202d), two ends of which are respectively fixed to the inner wall of the through hole (U) and the movable frame (202c).

10. A method for hoisting a pipe jacking machine head in a turbid deep water environment, characterized in that: The device comprises a nose capture device as described in any one of claims 1 to 9, and further comprises the following hoisting method: The cover (102) is opened by water pressure and the floating block (107); At this time, the air bag (105c) is inflated through the air tank (106a) to make it float upward; When the air bag (105c) moves to the water surface, the hook can move downward along the air bag (105c) and the traction rope (105b) into the hoisting chamber (S); Afterwards, the lifting hook is installed in the hinged seat (103) and the lifting operation can be carried out.

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