An adjustable spray dust suppression device for construction engineering

Abstract

The present invention relates to the technical field of construction equipment for building engineering. The present invention discloses an adjustable spray dust suppression device for building engineering, comprising a base and a spray assembly, wherein the spray assembly comprises a fog cannon barrel, the fog cannon barrel is mounted on the base through a posture adjustment assembly, a soft sleeve is mounted on the outlet end of the fog cannon barrel, a purge assembly is also mounted on the outlet end of the fog cannon barrel, the purge assembly is arranged near the bottom of the soft sleeve, the purge assembly comprises a purge fan and a liquid guiding hose, the purge fan performs directional purge on the bottom of the soft sleeve, the liquid guiding hose is mounted on the bottom of the soft sleeve, and thus realizes the diversion of the droplets at the bottom of the diversion soft sleeve away from the position of the fog cannon barrel. The present invention provides an adjustable spray dust suppression device for building engineering, wherein the purge fan performs directional purge on the bottom of the soft sleeve to prevent the droplets from adhering to the bottom of the soft sleeve, and the liquid guiding hose guides the droplets at the bottom of the diversion soft sleeve away from the position of the fog cannon barrel.

Description

Technical Field

[0001] The invention relates to the technical field of construction equipment for building projects, and in particular to an adjustable spray dust suppression device for building projects. Background Art

[0002] There will always be a lot of dust during construction, which will have a great impact on the health of construction workers. Therefore, dust reduction treatment is needed during construction to prevent dust from flying and affecting the health of workers. The principle of the spray dust suppressor is to use a high-pressure pump to pressurize water, send it to the high-pressure nozzle through a high-pressure pipeline, and form a floating water mist. Since the water mist particles are very small, they can absorb impurities in the air, create good and fresh air, and achieve multiple effects such as dust reduction and humidification.

[0003] Chinese patent CN113941205 B discloses an adjustable spray dust suppression device with a wide coverage range and an intelligent dust suppression method, wherein the dust suppression device includes a frame, a spray assembly for spraying atomized droplets, and an adjusting device for adjusting the angle of the spray assembly, and the adjusting device is arranged between the frame and the spray assembly; the spray assembly includes a fog cannon barrel for forming a high-speed airflow, a nozzle for spraying droplets, and a spray adjustment module for adjusting the spray range, and the nozzle is arranged inside the fog cannon barrel; the spray adjustment module includes an adjusting sleeve capable of adjusting the opening size and an adjusting drive mechanism for driving the adjusting sleeve to open a certain angle, the adjusting sleeve is arranged at the outlet of the fog cannon barrel, and encloses the outlet of the fog cannon barrel, and the adjusting sleeve is made of soft material. However, in actual use, it was found that when mist droplets are sprayed out of the opening of the adjusting sleeve, a part of the mist droplets will adhere to the bottom of the opening of the adjusting sleeve due to the influence of gravity. In particular, the greater the upward angle of the adjusting sleeve, the more mist droplets will adhere to the bottom of the opening of the adjusting sleeve. This makes it easy for mud and dust to accumulate at the bottom of the opening of the adjusting sleeve. If it is not cleaned in time, the mud and dust will dry and firmly adhere to the bottom of the opening of the adjusting sleeve, and it needs to be brushed to be cleaned. Summary of the invention

[0004] To achieve the above-mentioned purpose, the present invention discloses an adjustable spray dust suppression device for construction engineering, including a base and a spray assembly, the spray assembly including a fog cannon barrel, the fog cannon barrel is installed on the base through a posture adjustment assembly, a soft sleeve is installed at the outlet end of the fog cannon barrel, a purge assembly is also installed at the outlet end of the fog cannon barrel, the purge assembly is arranged close to the bottom of the soft sleeve, the purge assembly includes a purge fan and a liquid guiding hose, the purge fan performs directionally purge on the bottom of the soft sleeve, the liquid guiding hose is installed at the bottom of the soft sleeve, thereby realizing the diversion of the droplets at the bottom of the diversion soft sleeve away from the position of the fog cannon barrel.

[0005] Preferably, it also includes:

[0006] The adjusting component is installed at the outlet end of the fog cannon barrel and is arranged away from the purge component. The adjusting component is connected to the soft sleeve to change the opening size of the soft sleeve.

[0007] Preferably, the purge assembly comprises:

[0008] The purge seat is fixedly installed at the outlet end of the fog cannon barrel, and the bottom end of the purge seat is provided with a purge slope near the soft sleeve, and the purge fan is installed on the purge slope;

[0009] The liquid collecting component is installed in the purge seat and is connected with the liquid guiding hose through a telescopic hose. The power shaft of the purge fan is connected with the liquid collecting component.

[0010] Preferably, the liquid guiding hose is installed at the bottom of the soft sleeve through a fixing fastener, and the liquid guiding hose is provided with a liquid guiding port at a position away from the fog outlet cannon barrel.

[0011] Preferably, the liquid collection component comprises:

[0012] The liquid collecting chamber and the action chamber are arranged in the purge seat, the action chamber is arranged close to the purge slope, the power shaft extends into the action chamber, and the inner wall of the action chamber is provided with a mounting arc surface close to the purge slope;

[0013] A repositionable capsule body, the repositionable capsule body is abutted against the mounting arc surface, and a one-way liquid outlet pipeline connected to the liquid collecting chamber and a one-way liquid inlet pipeline connected to the telescopic hose are installed on the repositionable capsule body;

[0014] A pressing assembly is installed in the action chamber and is connected to the power shaft through a pair of meshing bevel gears. The pressing assembly is used for periodically pressing the resettable capsule.

[0015] Preferably, the pressing assembly comprises:

[0016] A rotating shaft 1 is rotatably mounted in the action chamber;

[0017] Mounting arms, three mounting arms are circumferentially mounted on the first rotating shaft;

[0018] The pressing roller is rotatably mounted on one end of the mounting arm away from the rotating shaft, and is used for pressing the resettable capsule.

[0019] Preferably, the one-way liquid inlet pipeline comprises:

[0020] The upper installation chamber is arranged in the purge seat and is located above the action chamber, and the inner wall of the upper installation chamber is arranged in an open manner near the end of the soft sleeve;

[0021] An installation shell is installed in the upper installation chamber through a supporting vertical rod, and a hard connecting pipe is installed on the installation shell and communicated between the installation shell and the telescopic hose;

[0022] A one-way liquid inlet pipe, one end of which extends into the upper installation chamber and is connected to the installation shell, and the other end of which extends into the action chamber and is connected to the resettable capsule.

[0023] Preferably, the liquid collection component further comprises:

[0024] A central rotating shaft, which is rotatably mounted in the upper mounting chamber through a mounting frame, the upper mounting chamber is connected to the liquid collecting chamber, and a rotating blade is mounted on the central rotating shaft;

[0025] Rotating shaft 2, one end of which extends into the upper mounting chamber and is connected to the central rotating shaft through a pair of meshing bevel gears 2, and the other end of which extends into the action chamber and is connected to rotating shaft 1 through a pair of meshing bevel gears 3.

[0026] Preferably, the central rotating shaft is rotatably mounted on the hard connecting pipe away from the end of the telescopic hose away from the two ends of the bevel gear.

[0027] Preferably, the purge seat is provided with an air inlet connected to the liquid collecting chamber at the end away from the soft sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a structural schematic diagram of the present invention;

[0030] Figure 2 This is an enlarged view of the purge assembly of the present invention (the soft sleeve is in an upward position at this time);

[0031] Figure 3 It is a schematic diagram of the internal structure of the purge seat of the present invention;

[0032] Figure 4 It is an enlarged view of the hard connecting pipe and the mounting shell of the present invention;

[0033] Figure 5 A cross-sectional view of a purge seat of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the pressing assembly of the present invention;

[0035] Figure 7 It is a schematic diagram of the installation of the purge fan of the present invention on the purge slope.

[0036] In the figure: 10. Base; 12. Posture adjustment assembly; 13. Mist cannon barrel; 15. Soft sleeve; 16. Purge assembly; 17. Purge fan; 18. Liquid guide hose; 19. Adjustment assembly; 20. Purge seat; 21. Purge slope; 22. Power shaft; 23. Telescopic hose; 24. Liquid collecting chamber; 25. Action chamber; 26. Mounting arc surface; 27. Resettable capsule; 28. One-way liquid outlet pipeline; 29. ​​Pressing assembly; 30. Bevel gear one; 31. Mounting arm; 32. Pressing roller; 33. Upper mounting chamber; 34. Mounting shell; 35. Hard connecting pipe; 36. One-way liquid inlet pipe; 37. Central shaft; 38. Mounting frame; 39. Rotating blades; 40. Shaft one; 41. Shaft two; 42. Bevel gear two; 43. Bevel gear three. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0038] Example

[0039] The present invention will be further described below in conjunction with the accompanying drawings.

[0040] like Figures 1 to 7 As shown, the present embodiment provides an adjustable spray dust suppression device for construction engineering, including a base 10 and a spray assembly, the spray assembly including a fog cannon barrel 13, the fog cannon barrel 13 is installed on the base 10 through a posture adjustment assembly 12, a soft sleeve 15 is installed at the outlet end of the fog cannon barrel 13, a purge assembly 16 is also installed at the outlet end of the fog cannon barrel 13, the purge assembly 16 is arranged close to the bottom of the soft sleeve 15, the purge assembly 16 includes a purge fan 17 and a liquid guiding hose 18, the purge fan 17 performs directional purge on the bottom of the soft sleeve 15, the liquid guiding hose 18 is installed at the bottom of the soft sleeve 15, thereby realizing the diversion of the droplets at the bottom of the diversion soft sleeve 15 away from the position of the fog cannon barrel 13.

[0041] The working principle and beneficial effects of the above technical solution are:

[0042] The present invention discloses an adjustable spray dust suppression device for construction engineering. The posture adjustment component 12 can change the pitch angle of the fog cannon barrel 13, and can realize the flexible adjustment of the posture of the fog cannon barrel 13. The mist droplets in the fog cannon barrel 13 are sprayed out from the soft sleeve 15. The purge fan 17 performs directional purge on the bottom of the soft sleeve 15, thereby preventing the mist droplets from adhering to the bottom of the soft sleeve 15. The liquid guide hose 18 guides the mist droplets located at the bottom of the guide soft sleeve 15 away from the position of the fog cannon barrel 13. The present invention provides an adjustable spray dust suppression device for construction engineering. The purge fan 17 performs directional purge on the bottom of the soft sleeve 15, thereby preventing the mist droplets from adhering to the bottom of the soft sleeve 15. The liquid guide hose 18 guides the mist droplets located at the bottom of the guide soft sleeve 15 away from the position of the fog cannon barrel 13. Thereby preventing the mist droplets from adhering to the bottom of the soft sleeve 15 and reducing the accumulation of mud and ash.

[0043] Specifically, because the posture adjustment component 12 realizes the pitch angle adjustment of the fog cannon barrel 13, when the fog cannon barrel 13 drives the soft sleeve 15 to do a downward pitch, the bottom of the soft sleeve 15 is tilted downward, and it is not easy for fog droplets to adhere. Figure 2 As shown), at this time, the bottom of the soft sleeve 15 is tilted upward, and under the action of gravity, the bottom of the soft sleeve 15 is easily attached with droplets at a position away from the fog cannon barrel 13, and the droplets gradually accumulate and slide down the bottom of the soft sleeve 15. At this time, the purge fan 17 performs a directional purge on the bottom of the soft sleeve 15 to prevent the droplets from adhering to the bottom of the soft sleeve 15, and the liquid guiding hose 18 guides the droplets located at the bottom of the diversion soft sleeve 15 away from the fog cannon barrel 13, thereby guiding the droplets accumulated at the bottom of the soft sleeve 15 away from the fog cannon barrel 13, thereby realizing the rapid removal of the droplets at the bottom of the diversion soft sleeve 15.

[0044] In one embodiment, it further includes:

[0045] The adjusting component 19 is installed at the outlet end of the fog cannon barrel 13 and is arranged away from the purge component 16. The adjusting component 19 is connected to the soft sleeve 15, thereby realizing the change of the opening size of the soft sleeve 15.

[0046] The working principle and beneficial effects of the above technical solution are:

[0047] The adjustment component 19 works to change the opening size of the soft sleeve 15, thereby changing the spray range.

[0048] In one embodiment, the purge assembly 16 includes:

[0049] The purge seat 20 is fixedly mounted at the outlet end of the fog cannon barrel 13. The bottom end of the purge seat 20 is provided with a purge slope 21 near the soft sleeve 15, and the purge fan 17 is mounted on the purge slope 21;

[0050] The liquid collecting assembly is installed in the purge seat 20 and is connected to the liquid guiding hose 18 through the telescopic hose 23. The power shaft 22 of the purge fan 17 is connected to the liquid collecting assembly.

[0051] The working principle and beneficial effects of the above technical solution are:

[0052] The purge fan 17 installed on the purge slope 21 works, thereby blowing directional wind to the bottom of the guide soft sleeve 15 to prevent droplets from adhering to the bottom of the soft sleeve 15, and the power shaft 22 of the purge fan 17 drives the liquid collecting component to work, and the liquid collecting component drives the liquid guiding hose 18 to guide the droplets located at the bottom of the guide soft sleeve 15 away from the fog outlet barrel 13, thereby guiding the droplets accumulated at the bottom of the soft sleeve 15 away from the fog outlet barrel 13, thereby realizing the rapid removal of droplets at the bottom of the guide soft sleeve 15, and the droplets guided by the liquid guiding hose 18 are collected into the liquid collecting component from the telescopic hose 23.

[0053] In one embodiment, the liquid guiding hose 18 is installed at the bottom of the soft sleeve 15 through a fixing fastener, and the liquid guiding hose 18 is provided with a liquid guiding port at a position away from the fog discharge cannon barrel 13 .

[0054] The working principle of the above technical solution is:

[0055] The liquid guide port is located at the bottom of the soft sleeve 15 away from the fog cannon barrel 13 . The mist droplets accumulated at the bottom of the soft sleeve 15 away from the fog cannon barrel 13 are quickly guided from the liquid guide port to the liquid guide hose 18 .

[0056] In one embodiment, the liquid collection component includes:

[0057] The liquid collecting chamber 24 and the actuating chamber 25 are arranged in the purge seat 20, the actuating chamber 25 is arranged close to the purge inclined surface 21, the power shaft 22 extends into the actuating chamber 25, and the inner wall of the actuating chamber 25 is provided with a mounting arc surface 26 at a position close to the purge inclined surface 21;

[0058] A repositionable capsule 27, the repositionable capsule 27 is attached to the mounting camber 26, and a one-way liquid outlet pipeline 28 connected to the liquid collecting chamber 24 and a one-way liquid inlet pipeline connected to the telescopic hose 23 are installed on the repositionable capsule 27;

[0059] The pressing assembly 29 is installed in the action chamber 25 and is connected to the power shaft 22 through a pair of meshing bevel gears 30. The pressing assembly 29 is used for periodically pressing the resettable capsule 27.

[0060] The working principle and beneficial effects of the above technical solution are:

[0061] The purge fan 17 installed on the purge slope 21 works, thereby blowing directional wind to the bottom of the flow-guiding soft sleeve 15 to prevent droplets from adhering to the bottom of the soft sleeve 15. The power shaft 22 of the purge fan 17 drives the pressing component 29 located in the action chamber 25 through a pair of meshing bevel gears 30 to periodically press the resettable capsule 27 located on the mounting camber 26. When the pressing component 29 presses the resettable capsule 27, the droplets collected in the resettable capsule 27 from the liquid-conducting hose 18, the telescopic hose 23 and the one-way liquid inlet pipeline are sequentially sent into the liquid collecting chamber 24 from the one-way liquid outlet pipeline 28. When the pressing component 29 releases the resettable capsule 27, the resettable capsule 27 is reset, and the droplets accumulated at the bottom of the soft sleeve 15 away from the fog outlet barrel 13 are collected again into the resettable capsule 27 from the liquid-conducting hose 18, the telescopic hose 23 and the one-way liquid inlet pipeline.

[0062] In one embodiment, the pressing assembly 29 includes:

[0063] A rotating shaft 40, the rotating shaft 40 is rotatably mounted in the action chamber 25;

[0064] Mounting arms 31, three mounting arms 31 are circumferentially mounted on a rotating shaft 1 40;

[0065] The pressing roller 32 is rotatably mounted on the mounting arm 31 at an end away from the rotating shaft 40 , and the pressing roller 32 is used to press the repositionable capsule 27 .

[0066] The working principle of the above technical solution is:

[0067] The purge fan 17 installed on the purge slope 21 works to blow directional wind to the bottom of the guide soft sleeve 15 to prevent droplets from adhering to the bottom of the soft sleeve 15. The power shaft 22 of the purge fan 17 drives the rotating shaft 40 located in the action chamber 25 to rotate through a pair of meshing bevel gears 30. Three pressing rollers 32 on the rotating shaft 40 connected by the mounting arms 31 periodically complete the pressing of the resettable capsule 27.

[0068] In one embodiment, the one-way liquid inlet pipeline includes:

[0069] The upper installation chamber 33 is arranged in the purge seat 20 and is located above the action chamber 25. The inner wall of the upper installation chamber 33 is open near the end of the soft sleeve 15;

[0070] A mounting shell 34, the mounting shell 34 is mounted in the upper mounting chamber 33 through a supporting vertical rod, a hard connecting pipe 35 is mounted on the mounting shell 34, and communicates between the mounting shell 34 and the telescopic hose 23;

[0071] The one-way liquid inlet pipe 36 has one end extending into the upper mounting chamber 33 and connected to the mounting shell 34 , and the other end extending into the action chamber 25 and connected to the resettable capsule 27 .

[0072] The working principle of the above technical solution is:

[0073] When the pressing assembly 29 releases the resettable capsule 27, the resettable capsule 27 is reset, and the mist droplets accumulated at the bottom of the soft sleeve 15 away from the mist cannon barrel 13 are sent into the mounting shell 34 by the liquid-conducting hose 18, the telescopic hose 23 and the hard connecting tube 35, and are sent into the resettable capsule 27 through the one-way liquid inlet pipe 36 connected to the mounting shell 34, thereby completing the collection of the mist droplets again.

[0074] In one embodiment, the liquid collection component further comprises:

[0075] A central rotating shaft 37, the central rotating shaft 37 is rotatably mounted in the upper mounting chamber 33 through a mounting frame 38, the upper mounting chamber 33 is connected to the liquid collecting chamber 24, and a rotating blade 39 is mounted on the central rotating shaft 37;

[0076] Rotating shaft 2 41, one end of rotating shaft 2 41 extends into the upper mounting chamber 33, and is connected to the central rotating shaft 37 through a pair of meshing bevel gears 2 42, and the other end of rotating shaft 2 41 extends into the action chamber 25, and is connected to rotating shaft 1 40 through a pair of meshing bevel gears 3 43.

[0077] The working principle and beneficial effects of the above technical solution are:

[0078] The purge fan 17 installed on the purge slope 21 works, thereby blowing directional wind to the bottom of the guide soft sleeve 15 to prevent the droplets from adhering to the bottom of the soft sleeve 15. The power shaft 22 of the purge fan 17 drives the rotating shaft 1 40 located in the action chamber 25 to rotate through a pair of meshing bevel gears 1 30. The rotating shaft 1 40 drives the rotating shaft 2 41 to rotate through a pair of meshing bevel gears 3 43. The rotating shaft 2 41 drives the central rotating shaft 37 to rotate through a pair of meshing bevel gears 2 42. The central rotating shaft 37 is installed in the upper chamber. 33 rotates, thereby driving the rotating blades 39 installed on the central rotating shaft 37 to rotate, and the rotating blades 39 blow directional wind to the hard connecting tube 35 and the liquid guiding hose 18 connected to the hard connecting tube 35 through the telescopic hose 23. Because the liquid guiding hose 18 is protrudingly installed at the bottom of the soft sleeve 15, the mist droplets can easily slide down along the outer surface of the liquid guiding hose 18, and the rotation of the rotating blades 39 blows directional wind to the surface of the liquid guiding hose 18, thereby preventing the mist droplets from sliding down along the outer surface of the liquid guiding hose 18. If the flow rate of the mist droplets sliding down the outer surface of the liquid guiding hose 18 is too large and the rotating blades 39 cannot blow it away, the excess mist droplets can be collected into the liquid collecting chamber 24 through the upper installation chamber 33.

[0079] In one embodiment, the central shaft 37 is rotatably mounted on the end of the hard connecting tube 35 away from the telescopic hose 23 away from the end of the bevel gear 2 42 .

[0080] In one embodiment, an air inlet connected to the liquid collecting chamber 24 is formed at the end of the purge seat 20 away from the soft sleeve 15 .

[0081] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An adjustable spray dust suppression device for construction engineering, comprising a base (10) and a spray assembly, characterized in that: The spray assembly comprises a fog cannon barrel (13), the fog cannon barrel (13) is mounted on a base (10) via a posture adjustment assembly (12), a soft sleeve (15) is mounted on the outlet end of the fog cannon barrel (13), a purge assembly (16) is also mounted on the outlet end of the fog cannon barrel (13), the purge assembly (16) is arranged close to the bottom of the soft sleeve (15), the purge assembly (16) comprises a purge fan (17) and a liquid guiding hose (18), the purge fan (17) performs directional purge on the bottom of the soft sleeve (15), and the liquid guiding hose (18) is mounted on the bottom of the soft sleeve (15), thereby achieving the diversion of the fog droplets at the bottom of the diversion soft sleeve (15) away from the fog cannon barrel (13); The purge assembly (16) comprises: A purge seat (20), the purge seat (20) is fixedly mounted on the outlet end of the fog cannon barrel (13), a purge slope (21) is provided at the bottom end of the purge seat (20) near the soft sleeve (15), and a purge fan (17) is mounted on the purge slope (21); A liquid collecting assembly is installed in the purge seat (20) and is connected to the liquid guiding hose (18) via a telescopic hose (23); a power shaft (22) of the purge fan (17) is connected to the liquid collecting assembly; The liquid collecting assembly comprises: a liquid collecting chamber (24) and an operating chamber (25) arranged in a purge seat (20); the operating chamber (25) is arranged near the purge inclined surface (21); the power shaft (22) extends into the operating chamber (25); the inner wall of the operating chamber (25) is provided with a mounting arc surface (26) near the purge inclined surface (21); the resettable capsule (27) is abutted against the mounting arc surface (26); the resettable capsule (27) is provided with a one-way liquid outlet pipeline (28) respectively connected to the liquid collecting chamber (24) and a one-way liquid inlet pipeline connected to the telescopic hose (23); a pressing assembly (29) is installed in the operating chamber (25) and connected to the power shaft (22) through a pair of meshing bevel gears (30); the pressing assembly (29) is used for periodically pressing the resettable capsule (27); The one-way liquid inlet pipeline comprises: an upper installation chamber (33) arranged in a purge seat (20) and located above an action chamber (25); the inner wall of the upper installation chamber (33) is open near the end of the soft sleeve (15); a mounting shell (34) is mounted in the upper installation chamber (33) through a supporting vertical rod; a hard connecting pipe (35) is mounted on the mounting shell (34) and communicated between the mounting shell (34) and the telescopic hose (23); one end of the one-way liquid inlet pipe (36) extends into the upper installation chamber (33) and is connected to the mounting shell (34); the other end of the one-way liquid inlet pipe (36) extends into the action chamber (25) and is connected to a resettable capsule (27).

2. The adjustable spray dust suppression device for construction engineering according to claim 1, characterized in that: Also includes: An adjusting component (19) is installed at the outlet end of the fog cannon barrel (13) and is arranged away from the purge component (16). The adjusting component (19) is connected to the soft sleeve (15) to achieve a change in the opening size of the soft sleeve (15).

3. The adjustable spray dust suppression device for construction engineering according to claim 1, characterized in that: The liquid-conducting hose (18) is mounted on the bottom of the soft sleeve (15) via a fixing fastener, and the liquid-conducting hose (18) is provided with a liquid-conducting port at a position away from the fog-discharging cannon barrel (13).

4. The adjustable spray dust suppression device for construction engineering according to claim 1, characterized in that: The pressing assembly (29) comprises: A rotating shaft (40) is rotatably mounted in the action chamber (25); Mounting arms (31), three mounting arms (31) are circumferentially mounted on a rotating shaft (40); A pressing roller (32) is rotatably mounted on an end of the mounting arm (31) away from one end of the rotating shaft (40), and the pressing roller (32) is used to press the resettable capsule (27).

Images