Visual structure of soil bin of shield tunneling machine

Abstract

The utility model discloses a shield tunneling machine soil bin visual structure which comprises a front shield shell arranged at the front end of a shield tunneling machine, the front shield shell is in a transverse circular tube shape, and the middle of the inner wall of the front shield shell is fixedly connected with a soil bin wall. A notch reinforcing plate is arranged between the inner side of the front end of the anterior shield shell and the side wall of the top end of the soil bin wall, the notch reinforcing plate is obliquely arranged, and the edges of the two sides of the notch reinforcing plate are welded to the inner wall of the anterior shield shell and the side wall of the soil bin wall to form a mounting cavity located at the front end of the top of the soil bin wall; a camera shooting mechanism is arranged in the mounting cavity and fixedly connected with the inner wall of the front shield shell or the side wall of the soil bin wall. A camera avoidance opening is formed in the notch reinforcing plate, a baffle mechanism is arranged on the side wall of the side, close to the mounting cavity, of the notch reinforcing plate, and the baffle mechanism is arranged above the camera avoidance opening and can control the shielding state of the camera avoidance opening.

Description

Technical Field

[0001] The utility model relates to the field of shield machines, in particular to a visible soil bin structure of a shield machine. Background Art

[0002] With the continuous development of society, my country's subway construction industry has also made rapid progress. As we all know, compared with other subway construction methods, the shield method is widely used due to its outstanding advantages such as low risk and high efficiency. At the same time, due to its complex construction process, there are still some difficulties in the construction process, including the inability to observe the various conditions inside the shield machine's soil bin in a timely and intuitive manner.

[0003] When the shield machine is excavating, the rotating cutter performs cutting operations, and the cut soil enters the soil bin and is transported out by the screw conveyor; however, the internal environment of the soil bin is complex and there is a lack of intuitive monitoring devices, which will lead to insufficient observation of the stability of the face and insufficient analysis of the rock properties, and may not accurately analyze the causes of over-excavation and abnormal excavation parameters. In addition, after a long period of excavation, the cutter will be worn or damaged to varying degrees. Before the shield machine excavates or enters the soil bin, if the outside world lacks intuitive monitoring of the internal environment of the soil bin and the status of the cutterhead and cutter, it will be impossible to formulate more effective excavation parameters or construction plans, which will also increase the danger of entering the bin.

[0004] Patent No. ZL202321480459.7 discloses a shield machine soil bin visualization device, which can observe the internal conditions of the soil bin. However, the glass piece at the front end of its lens is always exposed in the soil bin space. During the excavation process, sand and stones will continuously splash onto the glass surface, causing scratches on the glass surface, and ultimately resulting in unclear photography, which seriously affects the visualization effect inside the soil bin; therefore, it is necessary to study a new soil bin visualization structure to solve the above problems. Summary of the invention

[0005] The utility model aims to solve the above problems and provide a shield machine soil bin visible structure which has simple structure and is convenient to use.

[0006] In order to achieve the above purpose, the technical solution of the utility model is:

[0007] A visible soil bin structure of a shield machine comprises a front shield shell body arranged at the front end of the shield machine, the front shield shell body is in the shape of a horizontally placed circular tube, and the middle part of the inner wall of the front shield shell body is fixedly connected to the soil bin wall; a notch reinforcement plate is arranged between the inner side of the front end of the front shield shell body and the side wall of the top end of the soil bin wall, the notch reinforcement plate is arranged in an inclined shape, and the edges on both sides of the notch reinforcement plate are respectively welded to the inner wall of the front shield shell body and the side wall of the soil bin wall to form an installation cavity located at the front end of the top of the soil bin wall; a camera mechanism is arranged in the installation cavity, and the camera mechanism is fixedly connected to the inner wall of the front shield shell body or the side wall of the soil bin wall; a camera avoidance opening is arranged on the notch reinforcement plate, and a baffle mechanism is arranged on the side wall of the notch reinforcement plate close to the installation cavity, the baffle mechanism is arranged above the camera avoidance opening, and the baffle mechanism can control the blocking state of the camera avoidance opening.

[0008] Furthermore, the baffle mechanism includes a first baffle, a second baffle, a first hydraulic rod, and a second hydraulic rod. The first baffle and the second baffle are symmetrically arranged, the first hydraulic rod is arranged on a side of the first baffle away from the second baffle, and the second hydraulic rod is arranged on a side of the second baffle away from the first baffle; one end of the first baffle and the second baffle is connected to the pin shaft of the side wall of the incision reinforcement plate, the other end of the first baffle is connected to the pin shaft of one end of the first hydraulic rod, the other end of the second baffle is connected to the pin shaft of one end of the second hydraulic rod, and the other ends of the first hydraulic rod and the second hydraulic rod are both connected to the pin shaft of the side wall of the incision reinforcement plate.

[0009] Furthermore, a pipeline avoidance port penetrating the soil bin wall is provided on the soil bin wall, and the first hydraulic rod and the second hydraulic rod are both connected with an oil inlet pipe and an oil return pipe, which pass through the pipeline avoidance port and are connected to the hydraulic pipeline of the shield machine.

[0010] Furthermore, the camera mechanism includes a fixed support, a camera tube and a lighting tube. The fixed support is in the shape of a circular tube. A flange is provided at one end of the fixed support and is bolted to the soil bin wall through the flange. Rotating joints are provided on both sides of the other end of the fixed support and are connected to the camera tube and the lighting tube through the rotating joints. The axial directions of the camera tube and the lighting tube are consistent with the axial direction of the fixed support, and the axial direction of the rotating joint is perpendicular to the axial direction of the fixed support. A camera is provided in the camera tube and a lighting lamp is provided in the lighting tube. A power rotating device is provided in the fixed support and the rotating joint is controlled by the power rotating device to rotate around its own axis.

[0011] Furthermore, a line avoidance opening is provided on the wall of the soil bin, and the line avoidance opening is connected to the interior of the fixed support. The connection lines of the power rotating equipment, the camera and the lighting are all connected to the system circuit of the shield machine after passing through the line avoidance opening.

[0012] Furthermore, explosion-proof glass with heating function is provided in the camera tube at the front end of the camera and the light tube at the front end of the lighting lamp. The explosion-proof glass is fixedly connected to the camera tube and the light tube. The heating connection line of the explosion-proof glass is connected to the system circuit of the shield machine through a rotating joint, the inside of a fixed support, and a line avoidance opening.

[0013] Furthermore, the inner walls of the ends of the camera tube fitting and the inner walls of the ends of the lighting tube fitting are provided with air outlets and water outlets, both of which are facing the camera or the lighting lamp; the air outlet and the water outlet are provided with connecting pipes, which are connected to the system pipes of the shield machine after passing through the rotating joint, the inside of the fixed support and the line avoidance port.

[0014] Furthermore, a water-proof guard plate is arranged in the installation cavity, the water-proof guard plate is arranged in an inclined shape, the bottom end of the water-proof guard plate is welded to the bottom edge of the camera avoidance opening, and the top end of the water-proof guard plate is welded to the inner wall of the soil bin.

[0015] Furthermore, sealing plates are welded on both sides of the edge of the cut reinforcement plate, the top of the sealing plate is welded to the inner wall of the top of the front shield shell, and the rear end of the sealing plate is welded to the side wall of the soil bin. The sealing plates are located on both sides of the installation cavity and seal the installation cavity.

[0016] Compared with the prior art, the utility model has the following advantages and positive effects:

[0017] The utility model is designed to arrange an installation cavity at the front end of the top of the soil bin wall and to arrange a camera mechanism in the installation cavity, so that when the shield machine performs normal excavation operation, the camera mechanism is protected by the cut reinforcement plate, thereby preventing the camera structure from being damaged by debris during the excavation process; when it is necessary to observe the inside of the soil bin, it is only necessary to open the baffle mechanism to allow the camera structure to perform a camera operation on the inside of the soil bin through the camera avoidance opening; the protection effect of the camera is achieved by the cut reinforcement plate, thereby preventing the camera from being exposed in the soil bin space all the time and causing debris to scratch the camera glass surface, thereby ensuring that the visualization effect in the soil bin is not affected, thereby bringing convenience to the excavation work of the shield machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 for Figure 1 A magnified view of the local structure;

[0021] Figure 3 A top view of the connection structure of the baffle mechanism;

[0022] Figure 4 A top view of the connection structure of the camera mechanism;

[0023] Figure 5 It is a structural diagram of the camera mechanism. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the utility model.

[0025] like Figures 1 to 5 As shown, this embodiment discloses a visible structure of a soil bin of a shield machine, including a front shield shell 1 arranged at the front end of the shield machine, the front shield shell 1 is in a horizontal circular tube shape, and the middle part of the inner wall of the front shield shell 1 is fixedly connected to the soil bin wall 2; a cutout reinforcement plate 3 is arranged between the inner side of the front end of the front shield shell 1 and the top side wall of the soil bin wall 2, the cutout reinforcement plate 3 is arranged in an inclined shape, the front end edge of the cutout reinforcement plate 3 is welded to the inner wall of the front shield shell 1, and the rear end edge of the cutout reinforcement plate 3 is welded to the side wall of the soil bin wall 2, and the cutout reinforcement plate Sealing plates 8 are welded on both sides of the front shield shell 1. The top ends of the two sealing plates 8 are welded to the inner wall of the top end of the front shield shell 1. The rear ends of the two sealing plates 8 are welded to the side wall of the soil bin wall 2. After the incision reinforcement plate 3, the side wall of the soil bin wall 2, the inner wall of the front shield shell 1 and the two sealing plates 8 are welded, a mounting cavity 4 that maintains a sealed state is formed. The mounting cavity 4 is located at the front end of the top of the soil bin wall 2. The mounting cavity 4 is in the shape of a horizontal triangular prism. A camera mechanism 5 is arranged in the mounting cavity 4, and the camera mechanism 5 is fixedly connected to the side wall of the soil bin wall 2.

[0026] The incision reinforcement plate 3 is provided with a camera avoidance opening 301 , and a baffle mechanism 6 is provided on a side wall of the incision reinforcement plate 3 close to the installation cavity 4 . The baffle mechanism 6 is arranged above the camera avoidance opening 301 and the baffle mechanism 6 can control the blocking state of the camera avoidance opening 301 .

[0027] The installation cavity 4 is provided with an anti-water accumulation guard plate 7, which is arranged in an inclined shape. The bottom end of the anti-water accumulation guard plate 7 is welded to the bottom edge of the camera avoidance opening 301, and the top end of the anti-water accumulation guard plate 7 is welded to the inner wall of the soil bin wall 2.

[0028] In order to prevent water and dust from accumulating at the bottom corner of the installation cavity, an anti-water accumulation guard plate is provided to shield the bottom corner, so that the accumulated water and dust can flow out directly from the opened camera avoidance port.

[0029] The baffle mechanism 6 includes a first baffle 601, a second baffle 602, a first hydraulic rod 603, and a second hydraulic rod 604. The first baffle 601 and the second baffle 602 are symmetrically arranged. The first hydraulic rod 603 is arranged on the side of the first baffle 601 away from the second baffle 602, and the second hydraulic rod 604 is arranged on the side of the second baffle 602 away from the first baffle 601; one end of the first baffle 601 and the second baffle 602 are rotatably connected to the side wall of the cut reinforcement plate 3 through a first pin shaft 605, the other end of the first baffle 601 and one end of the first hydraulic rod 603, the other end of the second baffle 602 and one end of the second hydraulic rod 604 are rotatably connected through a second pin shaft 606, and the other ends of the first hydraulic rod 603 and the second hydraulic rod 604 are rotatably connected to the side wall of the cut reinforcement plate 3 through a third pin shaft 607; when connecting, a retaining ring needs to be provided on the pin shaft to prevent the baffle from shaking along the axial direction.

[0030] The soil bin wall 2 is provided with a pipeline avoidance opening 202 penetrating the soil bin wall 2, and the first hydraulic rod 603 and the second hydraulic rod 604 are both connected with an oil inlet pipe and an oil return pipe, which pass through the pipeline avoidance opening 202 and are connected to the hydraulic pipeline inside the shield machine.

[0031] When it is necessary to videotape the inside of the soil bin, it is only necessary to control the first hydraulic rod and the second hydraulic rod to retract, so that the first baffle and the second baffle can rotate around the first pin shaft, and the first baffle and the second baffle are opened to both sides respectively, so that the video avoidance opening is in an open state, and the video camera structure can perform videotaping operations on the inside of the soil bin; for the control of the first hydraulic rod and the second hydraulic rod, it is only necessary to supply or return oil to the first hydraulic rod and the second hydraulic rod through the hydraulic pipeline of the shield machine, which can be completed in the shield machine operating room.

[0032] The camera mechanism 5 includes a fixed support 501, a camera tube 505, and a lighting tube 504. The interior of the fixed support 501 is a hollow structure for installing power rotating equipment and serving as an installation channel for lines, gas pipelines, and water pipelines; a flange 502 is provided at one end of the fixed support 501, and 8 M10 bolt holes are evenly distributed on the flange 502 and are bolted to the soil bin wall 2 through the M10 bolt holes. The other end of the fixed support 501 is rotatably connected to a rotating joint 503 on both sides and is connected to the camera tube 5 through the rotating joint. 05. The axial directions of the lighting tube 504, the video tube 505 and the lighting tube 504 are consistent with the axial direction of the fixed support 501, the axial direction of the rotating joint 503 is perpendicular to the axial direction of the fixed support 501, a camera is arranged in the video tube 505, and a lighting lamp is arranged in the lighting tube 504; a power rotating device is arranged in the fixed support 501, and the rotating joint 503 is controlled by the power rotating device to rotate around its own axis, thereby realizing the illumination angle adjustment effect of the camera and the lighting lamp.

[0033] The soil bin wall 2 is provided with a line avoidance opening 201, which is connected to the interior of the fixed support 501. The connection lines of the power rotating equipment, the camera and the lighting lamp are all connected to the system circuit of the shield machine after passing through the line avoidance opening 201.

[0034] The hollow structure of the fixed support and the line avoidance opening cooperate to form an installation channel connected to the interior of the shield machine. The lines and pipelines that need to be connected to various equipment installed in the fixed support, the camera tube, and the lighting tube are connected to the internal system of the shield machine through the installation channel, so that they can be controlled by the shield machine system, making operation more convenient.

[0035] The camera tube and the lighting tube are symmetrically arranged on both sides of the fixed support. When not shooting, both face the direction of the earth bin wall to further prevent the splashing slag and stone from damaging the camera and the lighting, thereby further improving the safety of the camera mechanism.

[0036] When the visual device needs to be activated, the operator in the operating room controls the retraction of the hydraulic rod. The two symmetrically distributed hydraulic rods drive the two baffles to move to both sides through the pin shaft. When the two baffles are opened to the maximum, the button is closed; the power rotation equipment is started to make the camera tube and the light tube rotate around the rotating joint as the axis. The rotation angle range is 0-135°. The appropriate rotation angle can be adjusted according to the required observation position, ultimately achieving the visual effect of the soil bin.

[0037] Explosion-proof glass 506 with heating function is provided in the camera tube 505 at the front end of the camera and the light tube 504 at the front end of the lighting lamp. The explosion-proof glass 506 is fixedly connected to the camera tube 505 and the light tube 504. The heating connection line of the explosion-proof glass 506 is connected to the system circuit inside the shield machine after passing through the rotating joint 503, the inside of the fixed support 501, and the line avoidance opening 201.

[0038] By installing explosion-proof glass in front of the camera and the lighting, it can not only protect the camera and the lighting, but also prevent the glass surface from fogging, thereby improving the use effect of the camera mechanism.

[0039] The inner walls of the ends of the video tube 505 and the lighting tube 504 are both provided with gas outlets 507 and water outlets 508, which are arranged in front of the explosion-proof glass 506 and are evenly distributed along the inner rings of the video tube 505 and the lighting tube 504, including 4 water outlets and 4 gas outlets; the gas outlets 507 and the water outlets 508 are both facing the camera or the lighting lamp; the gas outlets 507 and the water outlets 508 are both provided with connecting pipelines, which are connected to the system pipelines inside the shield machine after passing through the rotating joint 503, the inside of the fixed support 501, and the line avoidance opening 201; after the connection, the water and gas switches and the pressure are adjusted by the operating room inside the shield machine, so that when the explosion-proof glass is contaminated, it can be cleaned in time to ensure the imaging clarity and improve the visualization effect of the soil bin.

[0040] The utility model is designed to arrange an installation cavity at the front end of the top of the soil bin wall and to arrange a camera mechanism in the installation cavity, so that when the shield machine performs normal excavation operation, the camera mechanism is protected by the cut reinforcement plate, thereby preventing the camera structure from being damaged by debris during the excavation process; when it is necessary to observe the inside of the soil bin, it is only necessary to open the baffle mechanism to allow the camera structure to perform a camera operation on the inside of the soil bin through the camera avoidance opening; the protection effect of the camera is achieved by the cut reinforcement plate, thereby preventing the camera from being exposed in the soil bin space all the time and causing debris to scratch the camera glass surface, thereby ensuring that the visualization effect in the soil bin is not affected, thereby bringing convenience to the excavation work of the shield machine.

Claims

1. A visible structure of a soil bin of a shield machine, comprising a front shield shell arranged at the front end of the shield machine, the front shield shell being in a horizontally placed circular tubular shape, and a soil bin wall being fixedly connected to the middle of the inner wall of the front shield shell; characterized in that: A cutout reinforcement plate is arranged between the inner side of the front end of the front shield shell and the side wall of the top of the soil bin wall. The cutout reinforcement plate is arranged in an inclined shape. The edges on both sides of the cutout reinforcement plate are respectively welded to the inner wall of the front shield shell and the side wall of the soil bin wall to form an installation cavity located at the front end of the top of the soil bin wall; a camera mechanism is arranged in the installation cavity, and the camera mechanism is fixedly connected to the inner wall of the front shield shell or the side wall of the soil bin wall; a camera avoidance opening is arranged on the cutout reinforcement plate, and a baffle mechanism is arranged on the side wall of the cutout reinforcement plate close to the installation cavity, the baffle mechanism is arranged above the camera avoidance opening, and the baffle mechanism can control the blocking state of the camera avoidance opening.

2. The shield machine soil bin visible structure according to claim 1, characterized in that: The baffle mechanism includes a first baffle, a second baffle, a first hydraulic rod, and a second hydraulic rod. The first baffle and the second baffle are symmetrically arranged, the first hydraulic rod is arranged on a side of the first baffle away from the second baffle, and the second hydraulic rod is arranged on a side of the second baffle away from the first baffle; one end of the first baffle and the second baffle is connected to the pin shaft of the side wall of the incision reinforcement plate, the other end of the first baffle is connected to the pin shaft of one end of the first hydraulic rod, the other end of the second baffle is connected to the pin shaft of one end of the second hydraulic rod, and the other ends of the first hydraulic rod and the second hydraulic rod are both connected to the pin shaft of the side wall of the incision reinforcement plate.

3. The shield machine soil bin visible structure according to claim 2, characterized in that: The soil bin wall is provided with a pipeline avoidance which penetrates the soil bin wall. The first hydraulic rod and the second hydraulic rod are both connected with an oil inlet pipe and an oil return pipe. The oil inlet pipe and the oil return pipe are connected with the hydraulic pipeline of the shield machine after passing through the pipeline avoidance.

4. The shield machine soil bin visible structure according to claim 3, characterized in that: The video recording mechanism comprises a fixed support, a video tube and a lighting tube. The fixed support is in the shape of a circular tube. A flange is provided at one end of the fixed support and is bolted to the soil bin wall through the flange. Rotating joints are provided on both sides of the other end of the fixed support and are connected to the video tube and the lighting tube through the rotating joints. The axial directions of the video tube and the lighting tube are consistent with the axial direction of the fixed support, and the axial direction of the rotating joint is perpendicular to the axial direction of the fixed support. A camera is provided in the video tube and a lighting lamp is provided in the lighting tube. A power rotating device is provided in the fixed support and the rotating joint is controlled by the power rotating device to rotate around its own axis.

5. The shield machine soil bin visible structure according to claim 4, characterized in that: A line avoidance opening is arranged on the wall of the soil bin, and the line avoidance opening is connected with the interior of the fixed support. The connection lines of the power rotating equipment, the camera and the lighting lamp are all connected with the system circuit of the shield machine after passing through the line avoidance opening.

6. The shield machine soil bin visible structure according to claim 5, characterized in that: Explosion-proof glass with heating function is arranged in the camera tube at the front end of the camera and the light tube at the front end of the lighting lamp. The explosion-proof glass is fixedly connected to the camera tube and the light tube. The heating connection line of the explosion-proof glass is connected to the system circuit of the shield machine through a rotating joint, the inside of a fixed support and a line avoidance opening.

7. The shield machine soil bin visible structure according to claim 6, characterized in that: The inner walls of the ends of the camera tube fitting and the light tube fitting are both provided with air outlets and water outlets, both of which face the camera or the light; the air outlets and the water outlets are both provided with connecting pipes, which are connected to the system pipes of the shield machine after passing through a rotating joint, the inside of a fixed support, and a line avoidance port.

8. The shield machine soil bin visible structure according to claim 7, characterized in that: An anti-water accumulation guard plate is arranged in the installation cavity, and the anti-water accumulation guard plate is arranged in an inclined shape. The bottom end of the anti-water accumulation guard plate is welded to the bottom edge of the camera avoidance opening, and the top end of the anti-water accumulation guard plate is welded to the inner wall of the soil bin wall.

9. The shield machine soil bin visible structure according to claim 8, characterized in that: Sealing plates are welded on both sides of the edge of the cut reinforcement plate, the top of the sealing plate is welded to the inner wall of the top of the front shield shell, and the rear end of the sealing plate is welded to the side wall of the soil bin. The sealing plates are located on both sides of the installation cavity and seal the installation cavity.

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