Sealing device for soft soil shield receiving

Abstract

The utility model relates to the technical field of shield equipment, in particular to a sealing device for soft soil shield receiving. The sealing device for soft soil shield receiving comprises a box body, a supporting frame, a driving assembly and a movable assembly. One end of the box body is provided with an opening, and the opening abuts against the ground wall and forms a containing space for propelling of the shield tunneling machine. The supporting frame is arranged on the ground, and the box body is arranged on the supporting frame. The driving assembly is located below the supporting frame, one end of the driving assembly communicates with underground confined water, the movable end of the movable assembly communicates with the other end of the driving assembly, the fixed end of the movable assembly is fixedly connected with the box body, and the underground confined water in the driving assembly can push the movable end to move so that the fixed end can drive the box body to be tightly pressed on the ground wall. The sealing device for soft soil shield receiving has high stability and sealing performance, potential safety hazards can be reduced, and operation efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shield equipment, in particular to a sealing device for receiving a soft soil shield. Background Art

[0002] At present, the development of tunnels has gradually introduced shield construction, which is a new type of dark excavation construction method and has become an important part of the transportation development of major cities at home and abroad. It has the advantages of large transportation capacity, high speed, low noise, light pollution, good ecological environment, economic and social benefits, and is becoming more and more popular.

[0003] Shield receiving refers to the process from the shield machine exiting the tunnel to the shield machine landing on the receiving base in the receiving working shaft during tunnel shield construction. Usually, a steel tunnel door ring is installed at the tunnel entrance to reinforce the tunnel entrance. During the construction of the shield machine in soft soil, due to the existence of underground pressurized water, the underground pressurized water will form a top force, resulting in difficulties in sealing and supporting the receiving structure, increasing safety hazards and reducing operating efficiency.

[0004] Therefore, it is urgent to design a sealing device for receiving a soft soil shield to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a sealing device for receiving a soft soil shield, which has high stability and sealing performance, reduces safety hazards and improves operating efficiency.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a sealing device for receiving a soft soil shield, comprising:

[0008] A box body, one end of which has an opening, the opening abuts against the ground wall and forms an accommodating space for the shield machine to propel;

[0009] A support frame, wherein the support frame is arranged on the ground, and the box body is arranged on the support frame;

[0010] A driving assembly, wherein the driving assembly is located below the supporting frame, and one end of the driving assembly is connected to underground pressurized water;

[0011] A movable component, the movable end of the movable component is connected to the other end of the driving component, the fixed end of the movable component is fixedly connected to the box, and the underground pressurized water in the driving component can push the movable end to move, so that the fixed end drives the box to be pressed against the ground wall.

[0012] As an optional technical solution for a sealing device for receiving a soft soil shield, a first sealing ring is provided between the box and the ground wall, one side of the first sealing ring is connected to the box, and the other end is pressed against the ground wall.

[0013] As an optional technical solution for a sealing device for receiving a soft soil shield, the driving assembly includes a connecting pipe and a pressure box, one end of the connecting pipe extends into the ground and is connected to underground pressurized water, and the other end of the connecting pipe is connected to the pressure box. The moving end of the movable assembly is slidably connected to the inner wall of the pressure box so that the underground pressurized water can flow into the pressure box through the connecting pipe and push the moving end to move.

[0014] As an optional technical solution for a sealing device for receiving a soft soil shield, an electric ball valve is provided on the connecting pipe, and the electric ball valve is configured to control the flow rate of the underground pressurized water.

[0015] As an optional technical solution for a sealing device for receiving a soft soil shield, a second sealing ring is provided between the inner wall of the pressure box and the movable end.

[0016] As an optional technical solution for a sealing device for receiving a soft soil shield, the movable component includes a first push rod, a transmission rod and a second push rod, one end of the transmission rod is connected to the first push rod, and the other end of the transmission rod is connected to the second push rod; one end of the first push rod away from the transmission rod is movably connected to the inner wall of the pressure box to form the movable end, and one end of the second push rod away from the transmission rod is fixedly connected to the box body to form the fixed end.

[0017] As an optional technical solution for a sealing device for receiving a soft soil shield, the sealing device for receiving a soft soil shield also includes a ring and a leg, the ring is sleeved on the first push rod, one end of the leg is connected to the ring, and the other end is supported on the ground, and the ring is configured to limit the first push rod.

[0018] As an optional technical solution for a sealing device for receiving a soft soil shield, the transmission rod includes a first lever arm and a second lever arm, the length of the first lever arm is greater than the length of the second lever arm, one end of the first lever arm is connected to the first push rod, and the other end is connected to the second lever arm, and the end of the second lever arm away from the first lever arm is connected to the second push rod, and a fulcrum is formed at the connection between the first lever arm and the second lever arm, and the fulcrum is rotatably arranged on the support frame, and both the first lever arm and the second lever arm can rotate around the fulcrum.

[0019] As an optional technical solution for a sealing device for receiving a soft soil shield, the sealing device for receiving a soft soil shield further includes a humidity sensor, which is arranged on a side of the ground wall facing the box body and is located outside the accommodating space.

[0020] As an optional technical solution for a sealing device for receiving a soft soil shield, a friction layer is provided between the support frame and the box body, and the friction layer is configured to increase the friction force between the box body and the support frame.

[0021] The beneficial effects of the utility model include at least:

[0022] The utility model provides a sealing device for receiving a soft soil shield, which includes a box, a support frame, a driving assembly and a movable assembly. One end of the box has an opening, which abuts against the ground wall and forms a storage space for the shield machine to be propelled. The support frame is set on the ground, and the box is set on the support frame. The driving assembly is located below the support frame, one end of the driving assembly is connected to underground pressurized water, the moving end of the movable assembly is connected to the other end of the driving assembly, and the fixed end of the movable assembly is fixedly connected to the box, and the underground pressurized water in the driving assembly can drive the moving end to move, so that the fixed end drives the box to be pressed against the ground wall. By setting up a box body, a support frame, a driving assembly and a movable assembly, the thrust of the underground pressurized water in the driving assembly on the movable assembly is utilized, so that part of the thrust can be transmitted from the movable assembly to the box body. Since the position height of the underground pressurized water in the driving assembly is lower than the position height of the underground pressurized water in the accommodating space, the thrust generated by the underground pressurized water in the driving assembly is greater than the thrust generated by the underground pressurized water in the accommodating space, so that the opening of the box body can press the ground wall tightly, avoiding the risk of leakage of underground pressurized water in the accommodating space, improving the sealing performance, and improving safety and operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the structure of the soft soil shield receiving sealing device and the shield machine after assembly provided by the embodiment of the utility model;

[0025] Figure 2 A side view of a soft soil shield receiving sealing device and a shield machine after assembly provided by an embodiment of the utility model.

[0026] Reference numerals

[0027] 10. Shield machine; 20. Ground wall; 30. Ground surface; 40. Underground pressurized water;

[0028] 100, box body; 110, accommodating space; 120, first sealing ring; 200, supporting frame; 300, driving assembly; 310, connecting pipe; 320, pressure box; 330, electric ball valve; 340, second sealing ring; 400, movable assembly; 410, moving end; 420, fixed end; 430, first push rod; 440, transmission rod; 4401, first lever arm; 4402, second lever arm; 4403, fulcrum; 450, second push rod; 500, collar; 600, supporting leg; 700, humidity sensor; 800, controller. DETAILED DESCRIPTION

[0029] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the present invention are further explained below with reference to the accompanying drawings and through specific implementation methods.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0033] In the description of this embodiment, unless otherwise specified, the term "plurality" refers to a quantity of two or more than two.

[0034] The receiving process of the shield machine refers to the process in which the shield machine excavates from the tunnel to the receiving working shaft and lands safely and accurately on the receiving base after the shield construction is completed. This process is an important part of the shield construction, involving the precise control and operation of the shield machine to ensure that the shield machine can successfully complete the excavation task and return safely.

[0035] During the receiving process, a series of operations and preparations need to be carried out, such as internal inspection of the shield machine, reinforcement of the soil at the tunnel entrance, accurate measurement of the coordinate position and posture of the shield machine, etc. At the same time, it is also necessary to gradually reduce the earth pressure (mud and water pressure) setting value and timely block the gap between the outer periphery of the segment at the tunnel entrance and the shield excavation hole to ensure the safety of the shield machine and the stability of the tunnel.

[0036] The receiving process is usually divided into two stages: initial receiving and final receiving. Initial receiving refers to the inspection before the shield machine enters the receiving site of the interval shield machine, including the preparation of the shield machine and the safety of the surrounding environment. Final receiving refers to the inspection after the tunnel exit is completed to ensure that the shield machine has completely landed on the receiving base and the safety and stability of the tunnel are guaranteed.

[0037] Sealing is always a very important link, whether in the initial acceptance stage or the final acceptance stage. Sealing measures can prevent soil, rock, water, mud and other substances from entering the shield machine or the tunnel, thereby ensuring the normal operation of the shield machine and the safety and stability of the tunnel. At the same time, sealing can also control the water pressure and groundwater level in the tunnel, prevent groundwater influx and mud leakage, keep the working surface dry and the construction proceed smoothly.

[0038] During the construction of a shield machine in soft soil, when underground pressurized water gushes out, the underground pressurized water has a certain water pressure, which will form a certain top force. This top force will have a certain impact force on the sealing device in the receiving stage of the shield machine, making it difficult to support the sealing device, thereby reducing the sealing effect and increasing safety hazards.

[0039] This embodiment provides a sealing device for receiving a soft soil shield. The sealing device for receiving a soft soil shield has high stability and sealing performance, can reduce safety hazards in construction operations, and improve operation efficiency.

[0040] like Figure 1-Figure 2 As shown, the sealing device for receiving a soft soil shield mainly includes a box body 100, a support frame 200, a driving assembly 300 and a movable assembly 400. Among them, one end of the box body 100 has an opening, which abuts against the ground wall 20 and forms an accommodating space 110 for the shield machine 10 to advance. In this way, the shield machine 10 can be gradually advanced in the accommodating space 110, and finally the receiving stage of the shield machine 10 is completed. Figure 1 The direction indicated by the X-axis in is the propulsion direction of the shield machine 10.

[0041] The support frame 200 is arranged on the ground 30 , and the box body 100 is arranged on the support frame 200 ; the arrangement of the support frame 200 can play a certain supporting role on the box body 100 , improve the force of the box body 100 , and enhance the stability of the box body 100 .

[0042] The driving assembly 300 is located below the support frame 200, and one end of the driving assembly 300 is connected to the underground pressurized water 40. The moving end 410 of the movable assembly 400 is connected to the other end of the driving assembly 300, and the fixed end 420 of the movable assembly 400 is fixedly connected to the box 100. The underground pressurized water 40 in the driving assembly 300 can push the moving end 410 to move, so that the fixed end 420 drives the box 100 to be pressed against the ground wall 20.

[0043] Since the driving assembly 300 is arranged below the support frame 200, the height of the driving assembly 300 is lower than the height of the box 100. That is to say, the pressure of the underground pressurized water 40 in the driving assembly 300 is greater than the pressure of the underground pressurized water 40 in the storage space 110 of the box 100. The underground pressurized water 40 flowing into the driving assembly 300 can push the movable end of the movable assembly 400, that is, the underground pressurized water 40 acts as a force-applying object to apply a thrust to the movable assembly 400, so that the fixed end 420 of the movable assembly 400 can push the box 100, so that the opening of the box 100 is pressed tightly against the ground wall 20, thereby offsetting the impact force of the underground pressurized water 40 in the storage space 110 on the box 100, so that the box 100 can be stably fixed on the ground wall 20, thereby improving the sealing performance, avoiding the leakage of underground pressurized water 40, improving safety, and improving working efficiency.

[0044] Compared with the prior art, the sealing device for receiving a soft soil shield in the present embodiment, through the arrangement of a box body 100, a support frame 200, a driving assembly 300 and a movable assembly 400, utilizes the thrust of the underground pressurized water 40 in the driving assembly 300 on the movable assembly 400, thereby enabling the part of the thrust to be transmitted from the movable assembly 400 to the box body 100. Since the position height of the underground pressurized water 40 in the driving assembly 300 is lower than the position height of the underground pressurized water 40 in the accommodating space 110, the thrust generated by the underground pressurized water 40 in the driving assembly 300 is greater than the thrust generated by the underground pressurized water 40 in the accommodating space 110, thereby enabling the opening of the box body 100 to press the ground wall 20 tightly, thereby avoiding the risk of leakage of the underground pressurized water 40 in the accommodating space 110, improving the sealing performance, and improving safety and operating efficiency.

[0045] like Figure 1 As shown, in this embodiment, a first sealing ring 120 is provided between the box body 100 and the ground wall 20, one side of the first sealing ring 120 is connected to the box body 100, and the other end is pressed against the ground wall 20. Specifically, one side of the first sealing ring 120 is bonded and connected to the box body 100, and the other end is pressed and abutted against the ground wall 20. The provision of the first sealing ring 120 can improve the sealing performance of the sealing device for receiving the soft soil shield, and avoid the risk of leakage of underground pressurized water 40.

[0046] Optionally, the first sealing ring 120 in this embodiment may be made of silicone or rubber.

[0047] Optionally, the box body 100 and the support frame 200 in this embodiment can be made of metal materials, such as stainless steel or copper alloy, etc., to improve mechanical strength and extend service life.

[0048] like Figure 1 As shown, in this embodiment, the driving component 300 includes a connecting pipe 310 and a pressure box 320, one end of the connecting pipe 310 extends into the ground and is connected to the underground pressurized water 40, and the other end of the connecting pipe 310 is connected to the pressure box 320, and the moving end 410 of the movable component 400 is slidably connected to the inner wall of the pressure box 320, so that the underground pressurized water 40 can flow into the pressure box 320 through the connecting pipe 310 and push the moving end 410 to move.

[0049] Optionally, the connecting pipe 310 and the pressure box 320 in this embodiment are integrally formed, thereby avoiding the risk of leakage of the underground pressure water 40 caused by the weld during welding and improving the sealing. Optionally, the connecting pipe 310 and the pressure box 320 are both made of metal.

[0050] Furthermore, if Figure 1As shown, an electric ball valve 330 is provided on the connecting pipe 310 in this embodiment, and the electric ball valve 330 is configured to control the flow of underground pressurized water 40. The soft soil shield receiving sealing device also includes a controller 800, and the controller 800 is electrically connected to the electric ball valve 330. The controller 800 can control the opening of the electric ball valve 330, so as to control the flow of underground pressurized water 40 entering the pressure box 320 through the electric ball valve 330, so as to control the pressure of the movable component 400 pushing the box body 100, and ensure that the box body 100 is supported, so as to ensure the stability and reliability of the soft soil shield receiving sealing device.

[0051] It should be emphasized that the controller 800 in this embodiment is a conventional component in the art, for example, it can be a PLC controller, etc. Therefore, this embodiment will not elaborate on its specific structure and working principle.

[0052] In addition, the electric ball valve 330 is a standard part in the industry, for example, it can be set as Q941F electric flange ball valve, Q911F electric internal thread ball valve, Q971F electric ultra-thin ball valve, etc.

[0053] like Figure 1 As shown, in this embodiment, a second sealing ring 340 is provided between the inner wall of the pressure box 320 and the movable end 410 , so as to prevent leakage of underground pressurized water 40 in the pressure box 320 and ensure thrust on the movable component 400 .

[0054] Optionally, the second sealing ring 340 in this embodiment can be made of silicone or rubber.

[0055] like Figure 1-Figure 2 As shown, in this embodiment, the movable component 400 includes a first push rod 430, a transmission rod 440 and a second push rod 450, one end of the transmission rod 440 is connected to the first push rod 430, and the other end of the transmission rod 440 is connected to the second push rod 450; one end of the first push rod 430 away from the transmission rod 440 is movably connected to the inner wall of the pressure box 320 and forms a movable end 410, and one end of the second push rod 450 away from the transmission rod 440 is fixedly connected to the box body 100 and forms a fixed end 420.

[0056] Exemplarily, both ends of the transmission rod 440 in this embodiment are connected to the first push rod 430 and the second push rod 450 through a rotating shaft, respectively.

[0057] Furthermore, the transmission rod 440 in this embodiment includes a first lever arm 4401 and a second lever arm 4402, the length of the first lever arm 4401 is greater than the length of the second lever arm 4402, one end of the first lever arm 4401 is connected to the first push rod 430, and the other end is connected to the second lever arm 4402, and the end of the second lever arm 4402 away from the first lever arm 4401 is connected to the second push rod 450, and a fulcrum 4403 is formed at the connection between the first lever arm 4401 and the second lever arm 4402, and the fulcrum 4403 is rotatably arranged on the support frame 200, and both the first lever arm 4401 and the second lever arm 4402 can rotate around the fulcrum 4403.

[0058] When the electric ball valve 330 is opened, the underground pressurized water 40 in the pressure box 320 can push the first push rod 430, and then the thrust generated by the underground pressurized water 40 is transmitted to the first push rod 430, and the first push rod 430 drives the transmission rod 440 to rotate around the fulcrum 4403, so that the first force arm 4401 and the second force arm 4402 can rotate around Figure 1 The fulcrum 4403 in the box body 100 rotates counterclockwise, so that the second force arm 4402 can drive the second push rod 450 to move toward the direction close to the box body 100, so that this part of the thrust is transmitted from the transmission rod 440 to the second push rod 450, and finally applied to the box body 100, so that the box body 100 can be firmly abutted against the ground wall 20, avoiding the risk of leakage of underground pressurized water 40 in the accommodating space 110.

[0059] In this embodiment, the length of the first lever arm 4401 is greater than that of the second lever arm 4402. Thus, according to the lever principle, when the thrust exerted on the first lever arm 4401 is relatively small, a larger thrust can be generated on the second lever arm 4402, thereby making use of the limited thrust generated by the underground pressurized water 40 with limited pressure to provide a stable support for the box body 100, thereby avoiding the risk of leakage and improving the sealing performance of the sealing device for receiving the soft soil shield.

[0060] Optionally, the fulcrum 4403 in this embodiment is welded to the support frame 200 to improve reliability.

[0061] like Figure 1-Figure 2As shown, in this embodiment, the sealing device for receiving a soft soil shield further includes a collar 500 and a leg 600. The collar 500 is sleeved on the first push rod 430. One end of the leg 600 is connected to the collar 500, and the other end is supported on the ground 30. The collar 500 is configured to limit the first push rod 430. The setting of the leg 600 can support the collar 500 and improve its stability. The setting of the collar 500 can limit the first push rod 430, so that the first push rod 430 can only move along the axial direction of the collar 500, avoiding the phenomenon of movement deviation, improving the reliability of the rotation of the movable assembly 400, and enabling the thrust generated by the groundwater to be stably transmitted to the movable assembly 400.

[0062] Optionally, the collar 500 and the leg 600 in this embodiment are both made of metal material, and the collar 500 and the leg 600 are connected by welding.

[0063] like Figure 1 As shown, in this embodiment, the sealing device for receiving the soft soil shield further includes a humidity sensor 700, which is arranged on the side of the ground wall 20 facing the box 100, and the humidity sensor 700 is located outside the accommodating space 110. The humidity sensor 700 is electrically connected to the controller 800, and the controller 800 can dynamically adjust the opening of the electric ball valve 330 according to the humidity monitored by the humidity sensor 700, so that the box 100 can always press the ground wall 20. Specifically, when the controller 800 detects that the humidity of the humidity sensor 700 is greater than the preset value, it means that the underground pressurized water 40 in the accommodating space 110 of the box 100 leaks at this time. At this time, the controller 800 can control the electric ball valve 330 to increase its opening, so that more underground pressurized water 40 can enter the pressure box 320 and generate a greater thrust on the movable component 400, so that the box 100 can be pressed against the ground wall 20 in time to ensure the sealing effect.

[0064] Optionally, since the controller 800 in this embodiment belongs to the prior art in the field, the principle of the controller 800 monitoring the humidity sensor 700 is also a conventional principle, which will not be described in detail here.

[0065] Optionally, the humidity sensor 700 in this embodiment can be configured as a capacitive humidity sensor, a resistive humidity sensor, a thermal conductivity humidity sensor, a resonance humidity sensor, a thermoelectric humidity sensor, or the like commonly found on the market.

[0066] Optionally, a friction layer (not shown in the figure) is provided between the support frame 200 and the box body 100 in this embodiment, and the friction layer is configured to increase the friction between the box body 100 and the support frame 200, thereby improving the stability and reliability of the box body 100 and preventing the box body 100 from slipping. Exemplarily, the friction layer can be a polyurethane coating, a rubber coating, a nickel-nickel alloy coating, or the like.

[0067] Obviously, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

[0068] Note that in the description of this specification, the reference terms "some embodiments", "other embodiments", etc., mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A sealing device for receiving a soft soil shield, characterized in that: include: A box body (100), one end of the box body (100) having an opening, the opening abutting against the ground wall (20) and forming an accommodating space (110) for the shield machine (10) to be propelled; A support frame (200), the support frame (200) being arranged on the ground (30), and the box (100) being arranged on the support frame (200); A driving assembly (300), wherein the driving assembly (300) is located below the support frame (200), and one end of the driving assembly (300) is connected to underground pressurized water (40); A movable component (400), wherein a movable end (410) of the movable component (400) is connected to the other end of the driving component (300), and a fixed end (420) of the movable component (400) is fixedly connected to the box (100), and underground pressurized water (40) in the driving component (300) can push the movable end (410) to move, so that the fixed end (420) drives the box (100) to be pressed against the ground wall (20).

2. The sealing device for receiving a soft soil shield according to claim 1, characterized in that: A first sealing ring (120) is provided between the box body (100) and the floor wall (20); one end of the first sealing ring (120) is connected to the box body (100), and the other end is pressed tightly against the floor wall (20).

3. The sealing device for receiving a soft soil shield according to claim 1, characterized in that: The driving assembly (300) comprises a connecting pipe (310) and a pressure box (320), one end of the connecting pipe (310) extends into the ground and is connected to the underground pressurized water (40), and the other end of the connecting pipe (310) is connected to the pressure box (320), and the moving end (410) of the movable assembly (400) is slidably connected to the inner wall of the pressure box (320), so that the underground pressurized water (40) can flow into the pressure box (320) through the connecting pipe (310) and push the moving end (410) to move.

4. The sealing device for receiving a soft soil shield according to claim 3, characterized in that: The connecting pipe (310) is provided with an electric ball valve (330), and the electric ball valve (330) is configured to control the flow rate of the underground pressurized water (40).

5. The sealing device for receiving a soft soil shield according to claim 3, characterized in that: A second sealing ring (340) is provided between the inner wall of the pressure box (320) and the movable end (410).

6. The sealing device for receiving a soft soil shield according to claim 3, characterized in that: The movable component (400) includes a first push rod (430), a transmission rod (440) and a second push rod (450), one end of the transmission rod (440) is connected to the first push rod (430), and the other end of the transmission rod (440) is connected to the second push rod (450); one end of the first push rod (430) away from the transmission rod (440) is movably connected to the inner wall of the pressure box (320) to form the movable end (410), and one end of the second push rod (450) away from the transmission rod (440) is fixedly connected to the box body (100) to form the fixed end (420).

7. The sealing device for receiving a soft soil shield according to claim 6, characterized in that: The soft soil shield receiving sealing device also includes a collar (500) and a leg (600), wherein the collar (500) is sleeved on the first push rod (430), one end of the leg (600) is connected to the collar (500), and the other end is supported on the ground (30), and the collar (500) is configured to limit the first push rod (430).

8. The sealing device for receiving a soft soil shield according to claim 6, characterized in that: The transmission rod (440) includes a first lever arm (4401) and a second lever arm (4402), the length of the first lever arm (4401) being greater than the length of the second lever arm (4402), one end of the first lever arm (4401) being connected to the first push rod (430), and the other end being connected to the second lever arm (4402), one end of the second lever arm (4402) away from the first lever arm (4401) being connected to the second push rod (450), a fulcrum (4403) being formed at the connection between the first lever arm (4401) and the second lever arm (4402), the fulcrum (4403) being rotatably disposed on the support frame (200), and both the first lever arm (4401) and the second lever arm (4402) being able to rotate around the fulcrum (4403).

9. The sealing device for receiving a soft soil shield according to any one of claims 1 to 8, characterized in that: The soft soil shield receiving sealing device further comprises a humidity sensor (700), wherein the humidity sensor (700) is arranged on a side of the ground wall (20) facing the box (100), and the humidity sensor (700) is located outside the accommodating space (110).

10. The sealing device for receiving a soft soil shield according to any one of claims 1 to 8, characterized in that: A friction layer is provided between the support frame (200) and the box body (100), and the friction layer is configured to increase the friction force between the box body (100) and the support frame (200).

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