Air supply device for tunnel construction

Abstract

The utility model relates to an air supply device, in particular to an air supply device for tunnel construction. The utility model provides an air supply device with shifting and fixing functions for tunnel construction, which comprises a mounting rack, a shell, fan blades, a motor and the like, the mounting rack is connected with the shell, the motor is mounted in the shell, and the front end of an output shaft of the motor is connected with the fan blades through a coupler. The support is rotated to move oppositely to be connected with the mounting frame in a clamped mode, the device is straightened, the shell is pushed to drive the universal wheels to move on the ground to achieve displacement, a steel rope penetrates through the mounting frame, suspension equipment is operated to lift the device upwards, a plurality of screws correspond to corresponding threaded holes in the mounting frame, and therefore the device can be fixedly mounted. And the motor is started and can drive the fan blades to rotate to supply air to the tunnel.

Description

Technical Field

[0001] The utility model relates to an air supply device, in particular to an air supply device for tunnel construction. Background Art

[0002] A tunnel is an engineering structure buried in the ground. It is a form of human utilization of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels. In order to ensure ventilation inside the tunnel and to ensure that the workers inside the tunnel can breathe fresh air and maintain a normal air environment inside the tunnel, ventilators need to be installed inside the tunnel.

[0003] The patent application publication number is CN212337339U, and the authorization announcement date is 20210112. A tunnel construction ventilation device includes an air inlet pipe, the inner wall of the air inlet pipe is fixedly connected to an inlet fan through a fixed column, the air outlet end flange of the air inlet pipe is connected to a first air supply pipe, the inner wall of the first air supply pipe is slidably connected to a second air supply pipe, the air outlet end flange of the second air supply pipe is connected to an air outlet pipe, the lower surfaces of the air inlet pipe and the air outlet pipe are fixedly connected to a fixed plate, and the lower surfaces of the first air supply pipe and the second air supply pipe are provided with a lap plate. The above patent does not have a fixing function, and is prone to shaking due to the influence of the wind flow generated by passing vehicles in the tunnel. The patent does not have a shifting function, which requires the staff to manually move the device to the work area for ventilation operations, which is more cumbersome for the staff.

[0004] In summary, there is an urgent need for an air supply device for tunnel construction with a shifting function and a fixing function to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcoming that a tunnel construction ventilation device does not have a fixing function and a shifting function, the technical problem that the utility model needs to solve is to provide an air supply device for tunnel construction with a shifting function and a fixing function.

[0006] A wind supply device for tunnel construction includes a mounting frame, a shell, a fan blade, a motor, a hinge block, a bracket and a universal wheel. The mounting frame is connected to the shell, and the upper parts of the left and right sides of the shell are symmetrically connected to the hinge blocks front and back. The hinge block is rotatably provided with a bracket, and the bracket is connected to the universal wheel capable of displacement. The motor is installed inside the shell, and the front end of the output shaft of the motor is connected to the fan blade capable of air supply operation through a coupling. Threaded holes are evenly spaced on the mounting frame.

[0007] Preferably, a protective cover is also included. The front side of the shell is connected to a protective cover with a protective function, and the protective cover is located in front of the fan blade.

[0008] Preferably, the body of the bracket is in a semicircular shape.

[0009] Preferably, a groove is formed on the mounting frame.

[0010] Preferably, three fixing rods are connected between two adjacent brackets.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. The utility model rotates the brackets to move toward each other and engage with the mounting frame, so as to straighten the device, push the shell to drive the universal wheel to move on the ground to achieve displacement, pass the steel rope through the mounting frame, operate the suspension device to lift the device upward, and put a plurality of screws into the corresponding threaded holes on the mounting frame, so as to achieve fixed installation of the device, start the motor, and the motor can drive the fan blades to rotate to supply air to the tunnel.

[0013] 2. The protective cover of the utility model can protect the fan blades.

[0014] 3. During the displacement process of the device, the fixing rod can fix the bracket, making the displacement of the universal wheel more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the protective cover and the shell of the utility model.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the motor, fan blades and housing of the utility model.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of components such as the universal wheel and the bracket of the utility model.

[0019] In the above figures: 1: mounting frame, 2: housing, 3: protective cover, 4: fan blade, 5: motor, 6: hinge block, 7: bracket, 8: universal wheel, 9: threaded hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0021] A tunnel construction air supply device, such as Figure 1-Figure 4As shown, it includes a mounting frame 1, a shell 2, a fan blade 4, a motor 5, a hinge block 6, a bracket 7 and a universal wheel 8. The shell 2 is welded on the mounting frame 1. The upper parts of the left and right sides of the shell 2 are both welded with hinge blocks 6 in a front-to-back symmetrical manner. The hinge block 6 is rotatably provided with a bracket 7, and the bracket 7 is connected with a universal wheel 8. The motor 5 is installed inside the shell 2. The front end of the output shaft of the motor 5 is connected with the fan blade 4 through a coupling. Threaded holes 9 are evenly spaced on the mounting frame 1. The rotating bracket 7 moves toward each other and engages with the mounting frame 1. The device is straightened so that the universal wheel 8 contacts the ground. The universal wheel 8 can realize the displacement of the device. The motor 5 is started. The motor 5 can drive the fan blade 4 to rotate to supply air to the tunnel. A plurality of screws are connected to the corresponding threaded holes 9 on the mounting frame 1 to fix the mounting frame 1 on the tunnel.

[0022] When it is necessary to use the device, first, the staff holds and rotates the bracket 7 to move toward each other, so that the bracket 7 is engaged with the mounting frame 1, and then, the device is straightened to make the universal wheel 8 contact with the ground, and the shell 2 is pushed. The shell 2 drives the universal wheel 8 to move on the ground to achieve displacement, and the operation is stopped when the device moves to the working area. Then, the staff passes the steel rope through the mounting frame 1 to bind it. The staff lifts the device upward by operating the hanging device, and stops the operation when the mounting frame 1 contacts the tunnel. The staff puts a plurality of screws corresponding to the corresponding threaded holes 9 on the mounting frame 1 to fix the mounting frame 1 on the tunnel, so that the device can be fixedly installed, and then the staff disconnects the mounting frame 1 from the hanging device, and then starts the motor 5. The output shaft of the motor 5 rotates to drive the fan blades 4 to rotate. This operation can supply air to the tunnel. After completing the air supply operation, the staff can turn off the motor 5. Example 2

[0023] On the basis of Example 1, Figure 1 As shown, a protective cover 3 is also included. The protective cover 3 is welded on the front side of the shell 2 and is located in front of the fan blade 4. The protective cover 3 can protect the fan blade 4.

[0024] During the air supply process of the device, the protective cover 3 can protect the fan blades 4 to prevent mosquitoes and sand brought up by the vehicle during driving from entering the interior of the housing 2.

[0025] like Figure 4 As shown, the body of the bracket 7 is in the shape of a semicircle.

[0026] During the displacement process of the device, the fixing rod can fix the bracket 7, so that the displacement of the universal wheel 8 is more stable.

[0027] like Figure 1 As shown, a groove is formed on the mounting frame 1.

[0028] The frame body of the bracket 7 is arranged in a semicircular arc shape, so that the bracket 7 can fully fit with the mounting frame 1.

[0029] like Figure 4 As shown, three fixing rods are connected between two adjacent brackets 7 .

[0030] This groove can reduce the weight of the mounting bracket 1 .

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An air supply device for tunnel construction, comprising a mounting frame (1), a housing (2), a fan blade (4), a motor (5), a hinge block (6), and a bracket (7), wherein the mounting frame (1) is connected to the housing (2), the upper portions of the left and right sides of the housing (2) are both symmetrically connected to the hinge blocks (6), the bracket (7) is rotatably provided on the hinge block (6), the motor (5) is installed inside the housing (2), the front end of the output shaft of the motor (5) is connected to the fan blade (4) capable of realizing air supply operation through a coupling, and the device is characterized in that: It also includes a universal wheel (8), the bracket (7) is connected to the universal wheel (8) capable of achieving displacement, and the mounting frame (1) is provided with threaded holes (9) evenly spaced apart.

2. A tunnel construction air supply device according to claim 1, characterized in that: It also includes a protective cover (3), the front side of the housing (2) is connected to the protective cover (3) with a protective function, and the protective cover (3) is located on the front side of the fan blade (4).

3. A tunnel construction air supply device according to claim 2, characterized in that: The frame body of the bracket (7) is in the shape of a semicircle.

4. A tunnel construction air supply device according to claim 3, characterized in that: The mounting frame (1) is provided with a groove.

5. The air supply device for tunnel construction according to claim 4, characterized in that: Three fixing rods are connected between two adjacent brackets (7).

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