A ventilation device for double shield TBM tunnel construction

Abstract

The utility model discloses a ventilation device for double-shield TBM tunnel construction, specifically relates to the technical field of TBM tunnel construction, including a main body shell, a mounting plate fixedly connected to the front side of the main body shell, a plurality of air inlets opened at the front end of the main body shell, a plurality of air outlets opened at the rear end of the main body shell, a ventilation component is arranged in the middle of the rear side of the inner cavity of the main body shell, a spray component is arranged at the upper part of the rear side of the inner cavity of the main body shell, and a pumping component is arranged at the lower right end of the main body shell. The ventilation device for double-shield TBM tunnel construction described in the utility model, the ventilation component arranged can perform ventilation work during the construction of the double-shield TBM tunnel, exchange harmful air with fresh air, thereby reducing the damage of harmful air to the human body; the spray component arranged can be linked with the ventilation component to spray clean water to reduce dust generated during the construction of the double-shield TBM tunnel, thereby reducing the damage of dust to the human body.

Description

Technical Field

[0001] The utility model relates to the technical field of TBM tunnel construction, in particular to a ventilation device used for double-shield TBM tunnel construction. Background Art

[0002] Double-shield TBM is a highly efficient tunnel boring equipment; Double-shield TBM is particularly suitable for soft and broken strata without groundwater that cannot stand on their own; Double-shield TBM construction method has the characteristics of high efficiency, safety and environmental protection.

[0003] During the tunnel construction process, due to the explosion of explosives, the use of internal combustion engines, and the release of harmful gases from the strata during excavation, harmful substances such as carbon monoxide, nitrogen oxides, and smoke will be produced inside the tunnel. Ventilation can effectively reduce the concentration of these harmful gases and ensure the safety of construction workers. During the tunnel construction process, due to operations such as drilling, blasting with explosives, loading slag, and shotcrete, a large amount of dust will be generated. Ventilation can effectively reduce the dust concentration and reduce the health hazards to construction workers.

[0004] Many harmful gases will be generated during the construction of double-shield TBM tunnels. If ventilation is not performed, these harmful gases will cause damage to the human body; a large amount of dust will also be generated during construction, which will also cause harm to the human body; however, most of the existing ventilation devices for double-shield TBM tunnel construction usually only have one function of ventilation; this scheme provides a device that can ventilate during tunnel construction while having the function of dust reduction, thereby improving the effect of protecting the health of construction workers. Utility Model Content

[0005] The main purpose of the utility model is to provide a ventilation device for double-shield TBM tunnel construction, which can effectively solve the problems of ventilation and dust reduction in double-shield TBM tunnel construction.

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

[0007] A ventilation device for double-shield TBM tunnel construction includes a main shell, a mounting plate is fixedly connected to the front side of the main shell, a plurality of air inlets are opened at the front end of the main shell, a plurality of air outlets are opened at the rear end of the main shell, a ventilation component is arranged at the middle of the rear side of the inner cavity of the main shell, a spray component is arranged at the upper part of the rear side of the inner cavity of the main shell, and a pumping component is arranged at the lower right end of the main shell.

[0008] Preferably, the ventilation assembly includes a motor, which is fixedly connected to the middle of the rear side of the inner cavity of the main shell, and the output end of the motor is rotatably connected to a round rod through a coupling, and the front side of the outer surface of the round rod is fixedly connected to a fan blade.

[0009] Preferably, the pumping assembly includes a water tank and a rectangular plate, the water tank is fixedly connected to the front side of the lower right end of the main shell, the rectangular plate is fixedly connected to the rear side of the lower right end of the main shell, the upper end of the rectangular plate is fixedly connected to a water pump, the input end of the water pump is fixedly connected to a pumping pipe, the front pumping pipe passes through the rear end of the water tank and extends to the inside of the water tank, and the output end of the water pump is fixedly connected to a delivery pipe.

[0010] Preferably, the spray assembly includes a rotating assembly, a reciprocating assembly is arranged on the front side of the rotating assembly, and a spray head assembly is arranged on the right side of the reciprocating assembly.

[0011] Preferably, the rotating assembly includes a rotating rod, which is rotatably connected to the upper rear portion of the inner cavity of the main shell, a pulley is fixedly connected to the front side of the outer surface of the rotating rod, the pulley on the lower side is fixedly connected to the outer surface of the round rod, and a rotating disc is fixedly connected to the front end of the rotating rod.

[0012] Preferably, the reciprocating assembly includes a connecting body and a T-shaped body, the connecting body is fixedly connected to the middle part of the front end of the rotating disk, the front side of the connecting body is rotatably connected with a slider, a rectangular groove is opened on the lower side of the front end of the T-shaped body, the slider is slidably connected to the inner surface of the rectangular groove, the T-shaped body is fixedly connected to a piston rod on the upper right end, the right end of the piston rod is fixedly connected to a rubber plug, the upper left end of the T-shaped body is fixedly connected to a sliding rod, the outer surfaces of the piston rod and the sliding rod are jointly slidably connected to a limiting body, and the limiting body is fixedly connected to the upper rear side of the inner cavity of the main shell.

[0013] Preferably, the nozzle assembly includes a cylinder, the left end of the cylinder passes through the upper rear part of the right end of the main body shell and extends to the inner cavity of the main body shell, the delivery pipe is fixedly connected to and passes through the right outer surface of the cylinder, the right end of the cylinder is fixedly connected and passes through a nozzle, the left side of the inner surface of the cylinder is fixedly connected to a limiting ring, and the rubber stopper is slidably connected to the inner surface of the cylinder.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The ventilation assembly provided in the utility model can perform ventilation work during the construction of the double-shield TBM tunnel, exchange harmful air with fresh air, thereby reducing the damage of harmful air to the bodies of construction workers; the spray assembly provided can be linked with the ventilation assembly to spray clean water to reduce the dust generated during the construction of the double-shield TBM tunnel, thereby reducing the damage of dust to the bodies of construction workers.

[0016] 2. The utility model is provided with a rotating assembly and a reciprocating assembly. When the ventilation assembly is in operation, the rotating assembly can be linked with the ventilation assembly, thereby driving the reciprocating assembly to operate, driving the piston rod and the rubber plug to reciprocate back and forth in the cylinder, thereby spraying out the clean water entering the cylinder, and reducing the dust generated in the shield TBM tunnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic cross-sectional diagram of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the ventilation assembly structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the pumping assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the spray assembly of the utility model;

[0022] Figure 6 It is a schematic diagram of the reciprocating component structure decomposition of the utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the nozzle assembly of the utility model.

[0024] In the figure: 1. main body shell; 2. mounting plate; 3. air inlet; 4. air outlet; 5. ventilation assembly; 51. motor; 52. round rod; 53. fan blade; 6. spray assembly; 61. rotating assembly; 611. pulley; 612. rotating rod; 613. rotating disc; 62. reciprocating assembly; 621. limiting body; 622. piston rod; 623. rubber plug; 624. sliding rod; 625. T-shaped body; 626. rectangular groove; 627. connecting body; 628. slider; 63. nozzle assembly; 631. limiting ring; 632. cylinder; 633. nozzle; 7. pumping assembly; 71. water tank; 72. pumping pipe; 73. rectangular plate; 74. pumping pump; 75. delivery pipe. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 and Figure 2As shown, a ventilation device for double-shield TBM tunnel construction includes a main shell 1, characterized in that: a mounting plate 2 is fixedly connected to the front side of the main shell 1, a plurality of air inlets 3 are opened at the front end of the main shell 1, a plurality of air outlets 4 are opened at the rear end of the main shell 1, a ventilation component 5 is arranged in the middle of the rear side of the inner cavity of the main shell 1, a spray component 6 is arranged at the upper part of the rear side of the inner cavity of the main shell 1, and a pumping component 7 is arranged at the lower right end of the main shell 1.

[0027] In a specific implementation, the device is vertically installed at a place convenient for ventilation in the double shield TBM tunnel construction through the mounting plate 2, the air inlet 3 faces the tunnel, the air outlet 4 faces the position where fresh air can enter, the water pumping component 7 is filled with clean water, and the ventilation component 5 is turned on and in working state, so that the harmful gas in the tunnel entering from the air inlet 3 is exchanged with the fresh air entering from the air outlet 4, so as to ventilate the tunnel during construction;

[0028] When the ventilation component 5 is operating, the pumping component 7 is turned on to pump clean water into the spray component 6. The operation of the ventilation component 5 drives the operation of the spray component 6, and the clean water entering the spray component 6 is sprayed out, thereby reducing the dust generated during the double-shield TBM tunnel construction.

[0029] Specifically, in order to enable ventilation during double shield TBM tunnel construction, thereby reducing the damage to the health of construction workers caused by harmful gases, refer to Figure 3 The ventilation assembly 5 includes a motor 51, which is fixedly connected to the middle of the rear side of the inner cavity of the main shell 1. The output end of the motor 51 is rotatably connected to a round rod 52 through a coupling, and the front side of the outer surface of the round rod 52 is fixedly connected to a fan blade 53.

[0030] In a specific implementation, after the device is installed in a position convenient for ventilation, the motor 51 is turned on, thereby driving the round rod 52 to rotate, thereby driving the fan blades 53 to rotate to generate wind, and the harmful gas is drawn into the main shell 1 from the air inlet 3, and the fresh air entering the main shell 1 through the air outlet 4 is exchanged with the harmful gas, so that ventilation is carried out during the double-shield TBM tunnel construction to reduce the damage of harmful gases to the health of construction workers.

[0031] Specifically, in order to achieve ventilation during the construction of double shield TBM tunnels, dust reduction treatment can be carried out on the dust generated during construction to reduce the damage of dust to the health of construction workers. Figure 4The pumping assembly 7 includes a water tank 71 and a rectangular plate 73. The water tank 71 is fixedly connected to the front side of the lower right end of the main shell 1. The rectangular plate 73 is fixedly connected to the rear side of the lower right end of the main shell 1. A water pump 74 is fixedly connected to the upper end of the rectangular plate 73. A pumping pipe 72 is fixedly connected to the input end of the water pump 74. The pumping pipe 72 on the front side passes through the rear end of the water tank 71 and extends to the inside of the water tank 71. A delivery pipe 75 is fixedly connected to the output end of the water pump 74.

[0032] Further reading Figure 5 The spray assembly 6 includes a rotating assembly 61, a reciprocating assembly 62 is arranged on the front side of the rotating assembly 61, and a spray head assembly 63 is arranged on the right side of the reciprocating assembly 62; the rotating assembly 61 includes a rotating rod 612, the rotating rod 612 is rotatably connected to the upper part of the rear side of the inner cavity of the main shell 1, a pulley 611 is fixedly connected to the front side of the outer surface of the rotating rod 612, and the pulley 611 is fixedly connected to the outer surface of the round rod 52 at the lower side, and a rotating disc 613 is fixedly connected to the front end of the rotating rod 612;

[0033] Further reading Figure 6 The reciprocating assembly 62 includes a connecting body 627 and a T-shaped body 625. The connecting body 627 is fixedly connected to the middle part of the front end of the rotating disk 613. The front side of the connecting body 627 is rotatably connected with a slider 628. A rectangular groove 626 is provided on the lower side of the front end of the T-shaped body 625. The slider 628 is slidably connected to the inner surface of the rectangular groove 626. The upper right end of the T-shaped body 625 is fixedly connected to a piston rod 622. The right end of the piston rod 622 is fixedly connected to a rubber plug 623. The upper left end of the T-shaped body 625 is fixedly connected to a slide bar 624. The outer surfaces of the piston rod 622 and the slide bar 624 are slidably connected to a limiting body 621. The limiting body 621 is fixedly connected to the upper rear part of the inner cavity of the main shell 1.

[0034] Further reading Figure 7 The nozzle assembly 63 includes a cylinder 632, the left end of which passes through the upper rear part of the right end of the main shell 1 and extends to the inner cavity of the main shell 1, the delivery pipe 75 is fixedly connected to and penetrates the right outer surface of the cylinder 632, the right end of the cylinder 632 is fixedly connected and penetrated by a nozzle 633, the left side of the inner surface of the cylinder 632 is fixedly connected to a limiting ring 631, and the rubber plug 623 is slidably connected to the inner surface of the cylinder 632.

[0035] The water tank 71 mentioned above is composed of a water tank body, a water inlet arranged at the upper end of the water tank body and a tank cover threadedly connected to the outer surface of the water inlet. By unscrewing the tank cover, clean water can be injected into the water tank 71 from the water inlet, and then the tank cover can be screwed on.

[0036] In a specific implementation, before the ventilation assembly 5 is turned on, a sufficient amount of clean water is put into the water tank 71. When the motor 51 is turned on to drive the round rod 52 to rotate, the rotating rod 612 is driven to rotate under the action of the pulley 611, thereby driving the rotating disc 613 to rotate. The rotation of the rotating disc 613 drives the connecting body 627 to rotate, thereby driving the slider 628 to slide up and down reciprocatingly on the inner surface of the rectangular groove 626. The force generated by the slider 628 sliding up and down reciprocatingly on the inner surface of the rectangular groove 626 drives the T-shaped body 625 to move back and forth, thereby driving the piston rod 622 and the slide bar 624 to move back and forth. The set limit body 621 can limit the path of the piston rod 622 and the slide bar 624 to move back and forth. While not hindering the piston rod 622 and the slide bar 624 to move back and forth, the limit body 621 can make the piston rod 622 and the slide bar 624 move back and forth and maintain horizontal sliding.

[0037] When the motor 51 is turned on to drive the rod 52 to rotate, thereby driving the spray assembly 6 to operate, the water pump 74 is turned on to pump out the clean water in the water tank 71 through the water pumping pipe 72, and then transport it to the cylinder 632 through the delivery pipe 75;

[0038] In this device, the piston rod 622 and the rubber plug 623 are both in the cylinder 632. When the piston rod 622 moves back and forth, the piston rod 622 and the rubber plug 623 slide back and forth in the cylinder 632, squeezing out the clean water that enters the cylinder 632 and spraying it out through the nozzle 633, so as to reduce the dust generated in the double shield TBM tunnel construction. The set limit ring 631 can limit the rubber plug 623 to prevent the rubber plug 623 from escaping from the cylinder 632 when moving back and forth.

[0039] It should be noted that the specific installation method of the motor 51 and the water pump 74 used in the present invention, the circuit connection method and the control method are all conventional designs, and the present invention will not elaborate on them in detail.

[0040] The working principle of the utility model is:

[0041] The device is installed at a location convenient for ventilation during tunnel construction, a sufficient amount of clean water is injected into the water tank 71, and the motor 51 is turned on to drive the fan blades 53 to rotate to generate wind, so as to exchange the harmful gases generated during tunnel construction with fresh air, thereby performing ventilation during tunnel construction;

[0042] When the motor 51 is turned on, the water pump 74 is turned on. The water pump 74 pumps the clean water in the water tank 71 into the cylinder 632. Under the action of the pulley 611, the motor 51 drives the round rod 52 to rotate, thereby driving the rotating disk 613 to rotate, thereby driving the connecting body 627 to rotate, so that the slider 628 slides up and down reciprocatingly on the inner surface of the rectangular groove 626, thereby driving the piston rod 622 and the rubber plug 623 to slide back and forth horizontally in the cylinder 632, so that the clean water entering the cylinder 632 is squeezed out through the nozzle 633, thereby performing dust reduction treatment during tunnel construction.

[0043] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A ventilation device for double-shield TBM tunnel construction, comprising a main housing (1), characterized in that: The front side of the main shell (1) is fixedly connected to a mounting plate (2), the front end of the main shell (1) is provided with a plurality of air inlets (3), the rear end of the main shell (1) is provided with a plurality of air outlets (4), a ventilation component (5) is arranged in the middle of the rear side of the inner cavity of the main shell (1), a spray component (6) is arranged in the upper part of the rear side of the inner cavity of the main shell (1), and a pumping component (7) is arranged at the lower part of the right end of the main shell (1).

2. A ventilation device for double shield TBM tunnel construction according to claim 1, characterized in that: The ventilation assembly (5) comprises a motor (51), the motor (51) being fixedly connected to the middle of the rear side of the inner cavity of the main housing (1), the output end of the motor (51) being rotatably connected to a round rod (52) via a coupling, and the front side of the outer surface of the round rod (52) being fixedly connected to a fan blade (53).

3. A ventilation device for double shield TBM tunnel construction according to claim 1, characterized in that: The water pumping assembly (7) comprises a water tank (71) and a rectangular plate (73); the water tank (71) is fixedly connected to the front side of the lower right end of the main body shell (1); the rectangular plate (73) is fixedly connected to the rear side of the lower right end of the main body shell (1); the upper end of the rectangular plate (73) is fixedly connected to a water pump (74); the input end of the water pump (74) is fixedly connected to a water pump pipe (72); the front side of the water pump pipe (72) passes through the rear end of the water tank (71) and extends into the interior of the water tank (71); the output end of the water pump (74) is fixedly connected to a delivery pipe (75).

4. A ventilation device for double shield TBM tunnel construction according to claim 1, characterized in that: The spray assembly (6) comprises a rotating assembly (61), a reciprocating assembly (62) is arranged on the front side of the rotating assembly (61), and a spray head assembly (63) is arranged on the right side of the reciprocating assembly (62).

5. A ventilation device for double shield TBM tunnel construction according to claim 4, characterized in that: The rotating assembly (61) comprises a rotating rod (612) which is rotatably connected to the upper rear portion of the inner cavity of the main housing (1); a belt pulley (611) is fixedly connected to the front side of the outer surface of the rotating rod (612); the belt pulley (611) is fixedly connected to the outer surface of the round rod (52) at the lower side; and a rotating disc (613) is fixedly connected to the front end of the rotating rod (612).

6. A ventilation device for double shield TBM tunnel construction according to claim 5, characterized in that: The reciprocating assembly (62) comprises a connecting body (627) and a T-shaped body (625), wherein the connecting body (627) is fixedly connected to the middle part of the front end of the rotating disc (613), a slider (628) is rotatably connected to the front side of the connecting body (627), a rectangular groove (626) is provided on the lower side of the front end of the T-shaped body (625), and the slider (628) is slidably connected to the inner surface of the rectangular groove (626), a piston rod (622) is fixedly connected to the upper right end of the T-shaped body (625), a rubber plug (623) is fixedly connected to the right end of the piston rod (622), and a slide rod (624) is fixedly connected to the upper left end of the T-shaped body (625), and the outer surfaces of the piston rod (622) and the slide rod (624) are slidably connected to a limiting body (621), and the limiting body (621) is fixedly connected to the upper rear part of the inner cavity of the main shell (1).

7. A ventilation device for double shield TBM tunnel construction according to claim 6, characterized in that: The nozzle assembly (63) comprises a cylinder (632), the left end of the cylinder (632) passes through the upper rear portion of the right end of the main body shell (1) and extends to the inner cavity of the main body shell (1), the delivery pipe (75) is fixedly connected to and passes through the right outer surface of the cylinder (632), the right end of the cylinder (632) is fixedly connected to and passes through the nozzle (633), the left side of the inner surface of the cylinder (632) is fixedly connected to a limiting ring (631), and the rubber plug (623) is slidably connected to the inner surface of the cylinder (632).

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