Dust falling machine for tunnel engineering construction

Abstract

The utility model provides a dust falling machine for tunnel engineering construction, which belongs to the technical field of steel pipe welding and fixing and comprises a base, universal wheels are arranged at the bottom of the base, a handle is fixed on one side of the base, a base is mounted on the base, and an air barrel is rotatably mounted on the base through a support rod. The base is movably connected with the air barrel through a telescopic rod, and an adjusting mechanism is arranged in the air barrel. The utility model solves the problems that when the existing dust falling machine is used, only the spraying height can be changed, and the spraying angle cannot be changed, so that the dust falling machine cannot be switched between remote long-distance narrow-area spraying and progress short-distance wide-area spraying, and the practicability is not high.

Description

A dust suppression machine for tunnel construction Technical Field

[0001] This utility model belongs to the field of tunnel dust suppression technology, specifically relating to a dust suppression machine for tunnel construction. Background Technology

[0002] Tunnels are engineering structures buried in the earth's strata and are a form of human utilization of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, military tunnels, etc. The structure of a tunnel includes two parts: the main building and auxiliary equipment. A large amount of dust is generated during the construction of tunnels, and dust suppression devices can effectively suppress dust.

[0003] Existing dust suppression machines can only change the spray height, not the spray angle. Consequently, they cannot switch between long-range, narrow-area spraying and short-range, wide-area spraying, making them impractical. Summary of the Invention

[0004] This utility model provides a dust suppression machine for tunnel construction, which aims to solve the problem that existing dust suppression machines can only change the spray height and cannot change the spray angle. As a result, the dust suppression machine cannot switch between long-distance narrow-area spraying and short-distance wide-area spraying, which makes it not very practical.

[0005] This utility model provides a dust suppression machine for tunnel construction, including a base, a caster wheel at the bottom of the base, a handle fixed on one side of the base, a base plate mounted on the base, and a wind duct rotatably mounted on the base plate via a support rod. The base plate and the wind duct are movably connected by a telescopic rod, and the wind duct has an adjustment mechanism inside.

[0006] Furthermore, the air duct includes a straight barrel rotatably mounted on a support rod, with a conical barrel installed at one end of the straight barrel. The conical barrel is composed of several movable plates, the bottom of which is movably hinged to the opening of the straight barrel, and the width of the movable plates decreases from bottom to top.

[0007] By adopting the above technical solution, the cone is composed of a tapered movable plate hinged to the bottom of a straight barrel. When the movable plate is extended, the cone forms an expanding outlet to achieve wide-area spraying; when the movable plate is retracted, the cone becomes a narrow channel for narrow-area spraying. The design of the movable plate width increasing from top to bottom ensures that there is no interference between adjacent movable plates during the extension and retraction process, and forms a continuous curved surface guide when extended.

[0008] Furthermore, the adjustment mechanism includes several fixed rods fixedly connected to the inner wall of the straight barrel, a motor is installed at the center of the several fixed rods, the output end of the motor faces the movable plate and is fixed with a lead screw, a slider is threadedly connected to the lead screw, and an extension rod is fixed to the side wall of the slider.

[0009] By adopting the above technical solution, with the motor fixed, the motor can drive the lead screw to rotate, and at this time the slider and the extension rod can move up and down along the lead screw.

[0010] Furthermore, a connecting rod is fixed to the inner wall of the movable plate, a wind plate is fixed to the other end of the connecting rod, a stop rod is movably installed on the other side of the wind plate, and the other end of the stop rod is movably connected to the extension rod.

[0011] By adopting the above technical solution, the extension rod that slides up and down along the lead screw pushes or pulls the air plate through the abutment rod, converting the linear motion of the extension rod into the rotational motion of the movable plate. When the extension rod moves upward, the abutment rod pushes the air plate, and then the air plate drives the movable plate to rotate around the hinge point through the connecting rod, forcing the movable plate to unfold outward. When the extension rod moves downward, the abutment rod pulls the air plate, and then the air plate drives the movable plate to rotate around the hinge point through the connecting rod, forcing the movable plate to retract inward, thus completing the angle adjustment.

[0012] Furthermore, a fixing plate is fixed near the center between adjacent fixing rods, and the length of the wind plate is less than the length of the movable plate.

[0013] By adopting the above technical solution, the fixed plate is horizontally connected to the adjacent fixed rods, which improves the overall stability. The design of the wind plate being shorter than the movable plate ensures that a gap is maintained between the bottom end of the wind plate and the fixed rod and the fixed plate, thus avoiding mechanical interference.

[0014] Furthermore, an elastic cloth is installed between adjacent movable plates, and an elastic cloth is also fixedly connected between the bottom of several air plates and the fixed plate.

[0015] By adopting the above technical solution, the elastic cloth forms a flexible seal between adjacent movable plates, and the elastic cloth is connected between the bottom of the air plate and the fixed plate, so that the air generated by the fan in the air duct can only be blown out from the reserved air duct between the air plate and the movable plate, which can prevent air leakage and at the same time meet the requirements of repeated bending.

[0016] Furthermore, a nozzle is installed on one end of the inner wall of several of the movable plates near the outlet, and the nozzle is connected to the water tank inside the base.

[0017] By adopting the above technical solution, the nozzle is installed on the inner side of the movable plate near the outlet. When the cone is unfolded, the nozzle spreads outward with the movable plate.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model, through the arrangement of a movable plate, a lead screw, a slider, an extension rod, a wind plate, a connecting rod, and a motor, allows the slider and extension rod to slide up and down along the lead screw under the drive of the motor, thereby pushing or pulling the wind plate through the abutment rod, which in turn causes the movable plate to expand outward or contract inward, thereby adjusting the spray angle.

[0020] 2. The elastic cloth of this utility model forms a flexible seal between adjacent movable plates. The elastic cloth is connected between the bottom of the wind plate and the fixed plate, so that the air generated by the fan in the wind duct can only be blown out from the reserved air duct between the wind plate and the movable plate, which can prevent air leakage and at the same time meet the requirements of repeated bending.

[0021] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 is a side view of an embodiment of the present invention.

[0024] Figure 2 is a side view of the wind turbine structure according to an embodiment of the present utility model;

[0025] Figure 3 is a side top view of the movable plate and wind plate of an embodiment of the present utility model.

[0026] Figure 4 is a top view of the fixed rod structure according to an embodiment of the present utility model;

[0027] Figure 5 is a schematic diagram of the concave cross-sectional structure of the wind turbine according to an embodiment of the present utility model.

[0028] Figure 6 is a schematic diagram of the extended cross-sectional structure of the wind turbine according to an embodiment of the present utility model;

[0029] Reference numerals: 1. Base; 2. Caster wheel; 3. Handle; 4. Base; 5. Air duct; 51. Straight duct; 52. Conical duct; 521. Movable plate; 5211. Connecting rod; 5212. Air vane; 5213. Support rod; 6. Adjustment mechanism; 61. Fixed rod; 611. Fixed plate; 62. Motor; 63. Lead screw; 64. Slider; 65. Extension rod. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] Referring to Figures 1-6, this embodiment of the present invention proposes a dust suppression machine for tunnel construction, including a base 1, with casters 2 at the bottom of the base 1, a handle 3 fixed to one side of the base 1, a base 4 mounted on the base 1, and a blower 5 rotatably mounted on the base 4 via a support rod. The base 4 and the blower 5 are movably connected by a telescopic rod, which can adjust the height of the water outlet of the blower 5. The base 1 contains a water tank, a hose, and a water pump. The blower 5 contains a blower, which is prior art and will not be described in detail here. The blower 5 includes a straight barrel 51 rotatably mounted on the support rod. One end is equipped with a cone 52, which is composed of several movable plates 521. The bottom of the movable plates 521 is hinged to the opening of the straight barrel 51. The width of the movable plates 521 decreases from bottom to top. The cone 52 is composed of gradually narrowing movable plates 521 hinged to the bottom of the straight barrel 51. When the movable plates 521 are extended, the cone 52 forms an expanding outlet to achieve wide-area spraying. When the movable plates 521 are retracted, the cone 52 becomes a narrow channel for narrow-area spraying. The design of the width of the movable plates 521 increasing from top to bottom ensures that there is no interference between adjacent movable plates 521 during the extension and retraction process, and forms a continuous curved surface guide when extended.

[0032] Referring to Figures 1-6, the air duct 5 is equipped with an adjustment mechanism 6 inside. The adjustment mechanism 6 includes several fixed rods 61 fixedly connected to the inner wall of the straight duct 51. A motor 62 is installed at the center of the fixed rods 61. The output end of the motor 62 faces the movable plate 521 and is fixed with a lead screw 63. A slider 64 is threadedly connected to the lead screw 63. An extension rod 65 is fixed to the side wall of the slider 64. When the motor 62 is fixed to the fixed rods 61, the output end of the motor 62 can drive the lead screw 63 to rotate. At this time, the slider 64 and the extension rod 65 can move up and down along the lead screw 63.

[0033] Referring to Figures 1-6, a connecting rod 5211 is fixed to the inner wall of the movable plate 521. A wind vane 5212 is fixed to the other end of the connecting rod 5211. A stop rod 5213 is movably installed on the other side of the wind vane 5212. The other end of the stop rod 5213 is movably connected to the extension rod 65. The extension rod 65, which slides up and down along the lead screw 63, pushes or pulls the wind vane 5212 via the stop rod 5213, converting the linear motion of the extension rod 65 into the rotational motion of the movable plate 521. When the extension rod 65 moves upward, the stop rod 5213 pushes the wind vane 5212, thereby increasing the airflow. Plate 5212 drives movable plate 521 to rotate around the hinge point via connecting rod 5211, forcing movable plate 521 to unfold outward. When extension rod 65 moves downward, stop rod 5213 pulls air plate 5212, which in turn drives movable plate 521 to rotate around the hinge point via connecting rod 5211, forcing movable plate 521 to retract inward, thus completing the angle adjustment. Slider 64, restricted by extension rod 65, stop rod 5213, connecting rod 5211 and movable plate 521, cannot rotate synchronously with lead screw 63, and can only slide up and down along lead screw 63.

[0034] Referring to Figures 1-6, a fixing plate 611 is also fixed near the center between adjacent fixing rods 61. The length of the wind plate 5212 is less than the length of the movable plate 521. The fixing plate 611 connects the adjacent fixing rods 61 laterally to improve overall stability. The design that the length of the wind plate 5212 is shorter than that of the movable plate 521 ensures that there is a gap between the bottom end of the wind plate 5212 and the fixing rods 61 and the fixing plate 611 to avoid mechanical interference.

[0035] Referring to Figures 1-6, an elastic cloth is installed between adjacent movable plates 521. The bottom of several air plates 5212 is also fixedly connected to the fixed plate 611 with an elastic cloth. The elastic cloth forms a flexible seal between adjacent movable plates 521. The connection between the bottom of the air plate 5212 and the fixed plate 611 with the elastic cloth allows the air generated by the fan in the air duct 5 to only be blown out from the reserved air duct between the air plate 5212 and the movable plate 521. This can dissipate heat from the motor 62 while preventing air leakage, and can also meet the requirements of repeated bending.

[0036] Referring to Figures 1-6, nozzles are installed on the inner wall of several movable plates 521 near the outlet. The nozzles are connected to the water tank inside the base 1 via flexible hoses. The nozzles are installed on the inner side of the movable plate 521 near the outlet. When the movable plate 521 is unfolded, the nozzles spread outward with the movable plate 521. When the movable plate 521 is retracted, the nozzles retract inward with the movable plate 521. At this time, the air duct is also changed so that the wind can always blow the water sprayed from the nozzles, thereby increasing the dust suppression range.

[0037] The specific implementation method is as follows: In use, the dust suppression device is pushed to the position where dust suppression is required by the handle 3. The blower, nozzle, and water pump are started, so that the nozzle can spray water. When the spray angle needs to be adjusted, the motor 62 is started. The motor 62 drives the lead screw 63 to rotate, and the slider 64 slides upward along the lead screw 63. Then the extension rod 65 slides upward. At this time, the extension rod 65 pushes the air plate 5212 outward through the abutment rod 5213. Since the bottom of the movable plate 521 is hinged to the straight barrel 51, the movable plate 521 can expand outward around the hinge point under the action of the air plate 5212 and the connecting rod 5211. Alternatively, the motor 62 is reversed, and the motor 62 drives the lead screw. Rotating 63 causes slider 64 to slide downwards along lead screw 63, which in turn causes extension rod 65 to slide downwards. At this time, extension rod 65 pulls air plate 5212 inwards through abutment rod 5213. Consequently, movable plate 521 can retract inwards around hinge point under the action of air plate 5212 and connecting rod 5211, thus completing angle adjustment. At the same time, when adjusting the angle, elastic cloth can flexibly seal the air plate 5212 and fixed plate 611, as well as the adjacent movable plate 521, so that air can only be blown out from the reserved air duct between movable plate 521 and air plate 5212, preventing air leakage from other positions. Meanwhile, elastic cloth can be repeatedly bent.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dust suppression machine for tunnel construction, comprising a base (1), characterized in that, The base (1) is provided with casters (2) at the bottom, and a handle (3) is fixed on one side of the base (1). A base (4) is installed on the base (1), and a wind bucket (5) is rotatably installed on the base (4) via a support rod. The base (4) and the wind bucket (5) are movably connected by a telescopic rod. An adjustment mechanism (6) is provided inside the wind bucket (5). The wind bucket (5) includes a straight bucket (51) rotatably installed on the support rod. One end of the straight bucket (51) is equipped with... There is a conical barrel (52), which is composed of several movable plates (521). The bottom of the movable plates (521) is hinged to the opening of the straight barrel (51). The width of the movable plates (521) decreases from bottom to top. The adjustment mechanism (6) includes several fixed rods (61) fixedly connected to the inner wall of the straight barrel (51). A motor (62) is installed at the center of the fixed rods (61). The output end of the motor (62) faces the movable plate (521). A lead screw (63) is fixed thereon, and a slider (64) is threaded onto the lead screw (63). An extension rod (65) is fixed to the side wall of the slider (64). A connecting rod (5211) is fixed to the inner wall of the movable plate (521). A wind plate (5212) is fixed to the other end of the connecting rod (5211). A stop rod (5213) is movably installed on the other side of the wind plate (5212). The other end of the stop rod (5213) is movably connected to the extension rod (65). A fixing plate (611) is fixed near the center between adjacent fixing rods (61). The length of the wind plate (5212) is less than the length of the movable plate (521). An elastic cloth is installed between adjacent movable plates (521). The bottom of several wind plates (5212) is also fixed with an elastic cloth connected to the fixing plate (611). A nozzle is installed on the inner wall of several movable plates (521) near the outlet. The nozzle is connected to the water tank inside the base (1).

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