Spraying dust falling device for tunnel construction

Abstract

The utility model discloses a spraying dust-settling device for tunnel construction, which belongs to the technical field of tunnel construction and comprises a movable spraying dust-settling assembly. The movable spraying dust-settling assembly comprises an inverted U-shaped movable hoisting bracket arranged in the tunnel, a sliding box body mounted on the inner wall of the U-shaped movable hoisting bracket in a sliding manner, and a spraying water conveying header pipe rotationally arranged on the bottom surface of the sliding box body; the at least two spraying water conveying branch pipes are symmetrically installed at one end of the spraying water conveying main pipe, the first spraying heads and the second spraying heads are arranged on the two spraying water conveying branch pipes respectively, and the spraying directions of the first spraying heads and the second spraying heads are opposite. And lifting hidden moving assemblies are arranged in longitudinal column bodies at the two ends of the U-shaped movable hoisting bracket. Due to the two-way injection design, dust particles can be better captured, the working environment quality is improved, the wider spraying coverage range is achieved, dead angles are effectively reduced, and the dust falling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of tunnel construction, especially a spraying dust-settling device for tunnel construction. BACKGROUND

[0002] In the process of tunnel construction, the generation of dust and particulate matter is an unavoidable problem, especially in drilling, blasting and material transportation operations. These dust not only affects the health of workers, but also may adversely affect the construction progress and quality. In order to solve this problem, a spraying dust-settling system is usually used to reduce the dust concentration in the air.

[0003] In the current tunnel construction environment, ensuring good air quality is crucial to protect workers' health and improve work efficiency. The traditional spraying system usually has only one direction of spraying mode, which fails to fully utilize the spatial layout to optimize the spraying effect. This is mainly because the dust distribution characteristics generated in different construction stages were not fully considered in the early design, and the one-way spraying easily forms a spraying blind area, reducing the overall dust-settling efficiency.

[0004] After searching, the existing Chinese patent publication No. CN221096595U, a high-cold region tunnel construction environmental protection dust removal device, includes a movable plate and an adjusting device connected to the front edge of the upper surface of the movable plate. The spraying device is movably inserted into the middle of the upper surface of the adjusting device. The protective device is connected to the front edge of the upper surface of the spraying device. The pressurized water pump is connected to the middle of the upper surface of the movable plate. The water storage tank is connected to the middle of the rear of the upper surface of the movable plate. The fixed handle is connected to the left and right of the rear edge of the upper surface of the movable plate to prevent the dust-settling water from freezing in the tunnel. The spraying pipe angle can be adjusted greatly when the spraying pipe is adjusted. The outlet of the spraying pipe can be prevented from being blocked by mud after use.

[0005] The above cited patent documents also have the same problem. The spraying system usually has only one direction of spraying mode, which fails to fully utilize the spatial layout to optimize the spraying effect. This is mainly because the dust distribution characteristics generated in different construction stages were not fully considered in the early design, and the one-way spraying easily forms a spraying blind area, reducing the overall dust-settling efficiency. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims to provide a spraying dust-settling device for tunnel construction to solve the problems raised in the background art.

[0007] To achieve the above object, the utility model provides the following technical scheme: A spray dust falling device for tunnel construction, mobile spray dust falling assembly is provided with, mobile spray dust falling assembly includes the inverted U type mobile hoisting support in the tunnel, the sliding box body of sliding installation in the inner wall of U type mobile hoisting support, the spray water supply main pipe of rotation setting in the bottom surface of sliding box body, at least two spray water supply branch pipes of symmetry installation in one end of spray water supply main pipe and a plurality of first spray heads and a plurality of second spray heads are set up on two spray water supply branch pipes respectively,

[0008] Rotary motor is longitudinally arranged in the sliding box body, the output shaft of rotary motor penetrates the sliding box body and drives and is connected spray water supply main pipe, the spray direction of first spray head and second spray head is opposite direction, the both ends of U type mobile hoisting support are longitudinally provided with lifting hidden type moving assembly in the interior of column body, lifting hidden type moving assembly can be moved from the both ends of U type mobile hoisting support and is supported the whole mobile spray dust falling assembly moves position in the tunnel.

[0009] The utility model discloses a spray water supply main pipe is provided with fixed sleeve spare on the one end of the side of the fixed sleeve spare, the output shaft of rotary motor is fixedly connected with fixed sleeve spare.

[0010] The utility model discloses a spray water supply main pipe is provided with water inlet pipe end part on the one end of the fixed sleeve spare, and the free end of water inlet pipe end part is connected with the water source delivery pipe of outside.

[0011] The utility model discloses a U type mobile hoisting support includes two support columns of symmetry setting and the support crossbeam of being fixed between the top end of two support columns, and the bottom of each support column is fixed with support base.

[0012] The utility model discloses each lifting hidden type moving assembly includes the oil cylinder spare of longitudinal setting in the inner chamber of each support column, the piston rod spare of being connected to the free end of oil cylinder spare, the support stand of being connected to the free end of piston rod spare, the U type support of being fixed to the bottom of support stand and two mobile wheels of symmetry rotation installation in the bottom of U type support.

[0013] The utility model discloses the oil cylinder spare drive piston rod spare telescopic movement makes piston rod spare drive support stand and two mobile wheels expand and contract and hide in support column, when the oil cylinder spare drive two mobile wheels and prop up U type mobile hoisting support, then can drive U type mobile hoisting support moves in the tunnel.

[0014] The bottom end outer wall of each support column is preferably provided with a detachable maintenance plate through screw mounting, and the oil cylinder can be disassembled and maintained by dismounting the detachable maintenance plate.

[0015] The inner cavity of the support beam is preferably provided with a threaded rod rotatably mounted therein, and the T-shaped sliding seat is slidably connected to the threaded rod.

[0016] The two ends of the threaded rod are preferably connected to the inner wall of the support beam through sealing bearings, and one end of the threaded rod extends to the outer wall of the support beam and is connected to a servo motor.

[0017] Compared with the prior art, the technical effects and advantages of the utility model are:

[0018] The tunnel construction spraying dust-settling device can flexibly adjust the spraying position according to the actual needs inside the tunnel, thereby realizing position adjustment of the spraying water supply main. This design allows the device to move freely in the horizontal direction, adapting to tunnel environments of different lengths and widths. Compared with traditional fixed installation or manual adjustment spraying systems, this design improves the convenience and flexibility of operation and reduces the need for manual intervention.

[0019] The rotating motor drives the spraying water supply main to rotate and change the spraying direction. The opposite spraying direction design of the first spraying head and the second spraying head ensures that the water flow can spray the target area from multiple angles, increases the water droplet contact area in the air, and the traditional one-way spraying system often has the problem of incomplete coverage. The bidirectional spraying design can better capture dust particles, improve the quality of the working environment, achieve a wider spraying coverage range, effectively reduce dead angles, and improve dust-settling efficiency.

[0020] The lifting hidden mobile assembly adjusts the height and movement state of the device, so that the device can quickly deploy or retract the moving wheels when needed. Compared with traditional devices that need external mechanical assistance to move, this device has the ability to move itself, improving the applicability and working efficiency of the device. The entire device can move inside the tunnel by itself, making it easy to quickly respond to the needs of different locations. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 It is a structural schematic diagram of the present application;

[0023] Figure 2 It is a connection structure schematic diagram of the spray water supply main pipe of the present application;

[0024] Figure 3 It is a structural schematic diagram of the lifting hidden moving assembly of the present application;

[0025] Figure 4 It is a connection structure schematic diagram of the oil cylinder of the present application;

[0026] Figure 5 It is a connection structure schematic diagram of the threaded rod and T-shaped sliding seat of the present application.

[0027] Explanation of reference signs:

[0028] In the figure: 1, mobile spray dust falling assembly; 2, support column; 3, support beam; 4, support base; 5, sliding box body; 6, servo motor; 7, power distribution control box; 8, detachable maintenance plate; 9, rotary spray assembly; 10, spray water supply main pipe; 11, spray water supply branch pipe; 12, first spray head; 13, second spray head; 14, fixed sleeve; 15, rotary motor; 16, water inlet pipe end; 17, lifting hidden moving assembly; 18, U-shaped support; 19, moving wheel; 20, support vertical rod; 21, oil cylinder; 22, piston rod; 23, threaded rod; 24, T-shaped sliding seat; 25, positioning connecting plate part; 26, sealing bearing. DETAILED DESCRIPTION

[0029] In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid obscuring the present application, some technical features known in the art are not described.

[0030] Unless the direction indicated by the single definition is specified, the directions such as up, down, left, right, front, back, inside and outside mentioned in this paper are based on the directions such as up, down, left, right, front, back, inside and outside in the drawings of the present application, which are described herein.

[0031] This embodiment provides, for example Figures 1 to 5 The dust suppression spraying device for tunnel construction shown includes a mobile dust suppression spraying assembly 1. The mobile dust suppression spraying assembly 1 includes an inverted U-shaped mobile hoisting support placed in the tunnel, a sliding box 5 slidably installed on the inner wall of the U-shaped mobile hoisting support, a spray water supply main pipe 10 rotatably installed on the bottom surface of the sliding box 5, at least two spray water supply branch pipes 11 symmetrically installed at one end of the spray water supply main pipe 10, and a plurality of first spray heads 12 and a plurality of second spray heads respectively installed on the two spray water supply branch pipes 11. 13. A rotary motor 15 is longitudinally arranged in the sliding box 5. The output shaft of the rotary motor 15 passes through the sliding box 5 and drives and connects to the spray water supply main pipe 10. The spraying directions of the first spray head 12 and the second spray head 13 are opposite. Lifting and concealed moving components 17 are installed inside the longitudinal columns at both ends of the U-shaped mobile hoisting support. The lifting and concealed moving components 17 can extend out from the columns at both ends of the U-shaped mobile hoisting support and support the entire mobile spray dust suppression assembly 1 to move its position in the tunnel. The sliding box 5 can slide on the inner wall of the U-shaped mobile hoisting support. The servo motor 6 drives the threaded rod 23, causing the T-shaped sliding seat 24 and the sliding box 5 to move linearly, thereby adjusting the position of the spray water supply main pipe 10. This allows for flexible adjustment of the spray angle and coverage area according to site requirements. The rotary motor 15 drives the spray water supply main pipe 10 to rotate, which can change the spraying direction. The first spray head 12 and the second spray head 13 spray in opposite directions. This design ensures that the spray water can cover a wider area, reduce dead corners, and improve dust suppression. Since the spray head adopts a bidirectional spray design, it increases the contact area of ​​water droplets in the air, effectively captures more dust particles, reduces the concentration of suspended particulate matter in the air, and improves the quality of the working environment.

[0032] In this embodiment, a fixing sleeve 14 is fixed around the end of the main water supply pipe 10 away from the branch water supply pipe 11, and the output shaft of the rotary motor 15 is fixedly connected to the fixing sleeve 14.

[0033] In this embodiment, the end of the spray water supply main pipe 10 away from the mobile spray dust suppression assembly 1 is provided with a water inlet pipe end 16, and the free end of the water inlet pipe end 16 is connected to an external water source supply pipe.

[0034] In this embodiment, the U-shaped movable hoisting bracket includes two symmetrically arranged support columns 2 and a support beam 3 fixed between the tops of the two support columns 2. Each support column 2 has a support base 4 fixed at its bottom.

[0035] In the embodiment, each lifting hidden moving assembly 17 comprises an oil cylinder 21 longitudinally arranged in the inner cavity of each support column 2, a piston rod 22 connected to the free end of the oil cylinder 21, a support rod 20 connected to the free end of the piston rod 22, a U-shaped support 18 fixed to the bottom end of the support rod 20, and two moving wheels 19 symmetrically and rotatably arranged at the bottom of the U-shaped support 18.

[0036] In the embodiment, the oil cylinder 21 drives the piston rod 22 to extend and retract, so that the piston rod 22 drives the support rod 20 and the two moving wheels 19 to extend and retract in the support column 2, and when the oil cylinder 21 drives the two moving wheels 19 to touch the ground and support the U-shaped movable hoisting support, the U-shaped movable hoisting support can be moved in the tunnel.

[0037] In the embodiment, the bottom end of each support column 2 is provided with a detachable maintenance plate 8 through screws, and the oil cylinder 21 can be disassembled and repaired by disassembling the detachable maintenance plate 8. One of the outer walls of the support column 2 is connected with a power distribution control box 7, and the power distribution control box 7 is provided with a PLC for controlling the opening and closing of the rotating motor 15, the oil cylinder 21 and the servo motor 6.

[0038] In the embodiment, a threaded rod 23 is rotatably arranged in the inner cavity of the support beam 3, and a T-shaped sliding seat 24 is slidably connected to the side of the threaded rod 23 and located in the inner cavity of the support beam 3. The bottom positioning connecting plate part 25 of the T-shaped sliding seat 24 extends downward and penetrates to the outside of the support beam 3, and the bottom end of the positioning connecting plate part 25 is welded with the top surface of the sliding box body 5.

[0039] In the embodiment, the two light rods at the ends of the threaded rod 23 are connected with the inner walls of the support beam 3 through sealing bearings 26, one end of the threaded rod 23 extends to the outer wall of the support beam 3 and is connected with the servo motor 6, and the servo motor 6 is fixed to the outer wall of one end of the support beam 3.

[0040] In the embodiment, the servo motor 6 drives the threaded rod 23 to rotate in the support beam 3, which drives the T-shaped sliding seat 24 to move linearly in the support beam 3, and drives the sliding box body 5 to slide linearly outside the support beam 3, so as to adjust the position of the spraying water supply main pipe 10. The U-shaped movable hoisting support is first considered to be located on the left and right sides of the tunnel, so as to reserve space for walking or moving of vehicles in the middle, and the spraying water supply main pipe 10 extends from the side of the tunnel to the center, and the position and direction are adjusted according to the needs of the scene.

[0041] Working principle

[0042] The tunnel construction spray dust falling device, through the PLC control system in the distribution control box 7, starts the servo motor 6, makes the threaded rod 23 rotate in the support cross beam 3, drives the T-shaped sliding seat 24 and the sliding box body 5 to move linearly, adjusts the position of the spray water supply main pipe 10 to the appropriate place, starts the oil cylinder 21, drives the piston rod 22 to stretch and retract, makes the support vertical rod 20 and the two moving wheels 19 stretch out from the inner cavity of the support vertical column 2, until the moving wheels 19 touch the ground and support the whole U-shaped movable lifting support, so as to move the position in the tunnel.

[0043] The external water source is opened, the water flow enters the spray water supply main pipe 10 through the water inlet pipe end 16, is distributed to the spray water supply branch pipe 11, and is finally sprayed out by the first spray head 12 and the second spray head 13, so that the spraying operation is carried out in the opposite direction, a larger range is effectively covered, and the dust falling effect is realized, according to the need, the angle of the spray water supply main pipe 10 is changed by adjusting the rotating motor 15 through the PLC control system, so that the direction and the coverage area of the spraying are adjusted.

[0044] In the use process, if the oil cylinder 21 needs to be overhauled, the detachable maintenance plate 8 can be disassembled for maintenance work, according to the specific conditions of the construction site, the position of the spray water supply main pipe 10 can be adjusted at any time through the servo motor 6, or the whole equipment can be moved to different positions through the lifting hidden moving assembly 17 to continue the dust falling operation. Through the above dust falling steps, the dust concentration in the tunnel construction process can be effectively reduced, and the quality of the operation environment is improved.

[0045] It should be noted that, in the present text, relational terms such as one and two and the like are used only to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any such actual relationship or order between such entities or operations. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article, or equipment. Without more limitations. The statement "comprises a limited element" does not exclude the presence of additional identical elements in the process, method, article, or equipment including the element.

[0046] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A tunnel construction spraying dust-settling device, comprising a mobile spraying dust-settling assembly (1), characterized in that: The mobile spray dust-settlement assembly (1) comprises an inverted U-shaped mobile lifting support placed in a tunnel, a sliding box body (5) slidingly installed on the inner wall of the U-shaped mobile lifting support, a spray water supply main pipe (10) rotatably arranged on the bottom surface of the sliding box body (5), at least two spray water supply branch pipes (11) symmetrically installed on one end of the spray water supply main pipe (10), and a plurality of first spray heads (12) and a plurality of second spray heads (13) respectively arranged on the two spray water supply branch pipes (11). The sliding box body (5) is longitudinally provided with a rotary motor (15), the output shaft of the rotary motor (15) penetrates the sliding box body (5) and drives and connects the spray water supply main pipe (10), the spray directions of the first spray heads (12) and the second spray heads (13) are opposite directions, and the two ends of the U-shaped mobile lifting support are both provided with lifting hidden mobile assemblies (17) in the longitudinal columnar bodies, the lifting hidden mobile assemblies (17) can be moved out of the two end columnar bodies of the U-shaped mobile lifting support and carry the mobile spray dust-settlement assembly (1) to move in the tunnel.

2. The spray dust-settling device for tunnel construction according to claim 1, characterized in that: The spray water supply main pipe (10) is fixedly provided with a fixed sleeve (14) on the side away from the spray water supply branch pipe (11), and the output shaft of the rotary motor (15) is fixedly connected with the fixed sleeve (14).

3. The spray dust-settling device for tunnel construction according to claim 2, characterized in that: The spray water supply main pipe (10) is provided with a water inlet pipe end (16) at the end away from the mobile spray dust-settlement assembly (1), and the free end of the water inlet pipe end (16) is connected with an external water source conveying pipe.

4. The spraying dust-settling device for tunnel construction according to claim 3, characterized in that: The U-shaped mobile lifting support comprises two symmetrical support columns (2) and a support cross beam (3) fixed between the top ends of the two support columns (2), and the bottom end of each support column (2) is fixedly provided with a support base (4).

5. The spray dust-settling device for tunnel construction according to claim 4, characterized in that: Each lifting hidden mobile assembly (17) comprises an oil cylinder (21) longitudinally arranged in the inner cavity of each support column (2), a piston rod (22) connected to the free end of the oil cylinder (21), a support rod (20) connected to the free end of the piston rod (22), a U-shaped support (18) fixed to the bottom end of the support rod (20), and two mobile wheels (19) symmetrically and rotatably installed at the bottom of the U-shaped support (18).

6. The spray dust-settling device for tunnel construction according to claim 5, characterized in that: The oil cylinder (21) drives the piston rod (22) to move in and out, so that the piston rod (22) drives the support rod (20) and the two mobile wheels (19) to extend and retract in the support column (2), and when the oil cylinder (21) drives the two mobile wheels (19) to touch the ground and support the U-shaped mobile lifting support, the U-shaped mobile lifting support can be moved in the tunnel.

7. The spray dust-settling device for tunnel construction according to claim 6, characterized in that: The outer wall of the bottom end of each support column (2) is provided with a detachable maintenance plate (8) by screwing, which can be disassembled to maintain the oil cylinder (21). One of the outer walls of the support column (2) is connected with a power distribution control box (7), and the power distribution control box (7) is provided with a PLC for controlling the opening and closing of the rotating motor (15), the oil cylinder (21) and the servo motor (6).

8. The spraying dust-settling device for tunnel construction according to claim 7, characterized in that: A threaded rod (23) is rotatably installed in the inner cavity of the support beam (3). The side of the threaded rod (23) and the inner cavity of the support beam (3) are slidably connected with a T-shaped sliding seat (24). The bottom positioning connecting plate part (25) of the T-shaped sliding seat (24) extends downward and penetrates to the outside of the support beam (3). The bottom end of the positioning connecting plate part (25) is welded with the top surface of the sliding box body (5).

9. The dust spraying device for tunnel construction according to claim 8, characterized in that: The two ends of the threaded rod (23) are connected with the inner wall of the support beam (3) through the sealing bearing (26). One end of the threaded rod (23) extends to the outer wall of the support beam (3) and is connected with the servo motor (6). The servo motor (6) is fixed to the outer wall of one end of the support beam (3).

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