CN217015928U

CN217015928U - Building site uses high-efficient water smoke dust collector

Info

Publication number: CN217015928U
Application number: CN202220735175.7U
Authority: CN
Inventors: 王炳喆; 贾海元; 刘振华; 孙平平; 雷祎辉; 樊丽艳; 陈海文; 季笑缘; 王金博; 张振鹏; 黄冶
Original assignee: China Construction First Group Corp Ltd; Third Construction Co Ltd of China Construction First Group Co Ltd
Current assignee: China Construction First Group Corp Ltd; Third Construction Co Ltd of China Construction First Group Co Ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-07-22
Anticipated expiration: 2032-03-30

Abstract

The utility model relates to the technical field of dust removal devices, in particular to a high-efficiency water mist dust removal device for a building site, which comprises a barrel, wherein the lower end of the barrel is fixedly connected with a base, the middle part of the interior of the barrel is movably connected with a water spray pipe, the middle ring side of the water spray pipe is fixedly connected with three water spray components, the upper end of the barrel is fixedly connected with a dust collection cover, the exterior of the dust collection cover is provided with a plurality of dust collection holes, the upper end of the water spray pipe is fixedly connected with a rotating shaft, the middle ring side of the rotating shaft is fixedly connected with a rotary vane, and the left side of the interior of the base is provided with a muddy water cavity. The device can effectively the water economy resource, avoids the excessive waste of water resource, can concentrate the recovery to the dust simultaneously, avoids the dust directly to fall to the problem of the easy secondary raise dust behind the ground drying, and dust removal effect is good, can not influence building site construction environment simultaneously, can satisfy the dust removal demand under the different space environment.

Description

Building site uses high-efficient water smoke dust collector

Technical Field

The utility model relates to the technical field of dust removal devices, in particular to a high-efficiency water mist dust removal device for a building site.

Background

With the rapid development of urban infrastructure construction, the pollution of construction material garbage generated by construction sites is becoming more and more serious. Meanwhile, most of building construction projects have low technical content, the blocking, covering and protecting measures are not in place in the construction process, and the raised dust generated in the construction process is not properly treated in time and is blown away by wind and floats in the air, so that the air raised dust pollution is aggravated particularly in construction.

Along with people to the environmental aspect attention degree improve gradually, more and more job sites use dust collecting equipment to get rid of the dust in the air, enclose modes such as fender, water spray and fog gun car through setting up, utilize the dust granule in the water absorption air. However, when dust removal is performed in the above manner, the following problems are present: firstly, the water consumption is large and the dust removal effect is not good. Because the outlet of the water flow is in an open environment, the sprayed water directly falls onto the ground, the water flow cannot be recycled, and a large amount of water resources are consumed during dust removal; meanwhile, as the muddy water is directly discharged on the ground, after the water is evaporated, dust particles are easy to be raised secondarily after being dried, and the better dust removal effect can be achieved only by continuously spraying water; and secondly, continuously spraying water to influence construction. When removing dust, muddy water directly falls to subaerial, and the ground is comparatively wet and smooth when being under construction, seriously influences personnel's walking about and the transfer of equipment in the work progress, and is comparatively inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-efficiency water mist dust removal device for a construction site, which can effectively save water resources, can simultaneously and intensively recycle dust, thereby achieving a better dust removal effect, and simultaneously can not influence the normal construction so as to solve the problems in the background technology.

The utility model provides a high-efficiency water mist dust removal device for a construction site, which comprises a cylinder body, wherein the lower end of the cylinder body is fixedly connected with a base, the middle part of the inside of the cylinder body is movably connected with a water spraying pipe, the middle annular side of the water spraying pipe is fixedly connected with a water spraying assembly, the upper end of the cylinder body is fixedly connected with a dust absorption cover, the outside of the dust absorption cover is provided with a plurality of dust absorption holes, the upper end of the water spraying pipe is fixedly connected with a rotating shaft, the middle annular side of the rotating shaft is fixedly connected with a rotary vane, the left side of the inside of the base is provided with a muddy water cavity, the left bottom end of the muddy water cavity is provided with a sewage discharge outlet, the right side of the inside of the base is provided with a purified water cavity, the right upper end of the purified water cavity is provided with a water inlet, a partition plate is fixedly connected between the muddy water cavity and the purified water cavity, a sewage hole is arranged between the cylinder body and the muddy water cavity, and the upper end of the purified water cavity is provided with a transmission cavity, the inside right-hand member fixedly connected with high-pressure pump in transmission chamber, the bottom lower extreme fixedly connected with inlet tube of high-pressure pump, the lower extreme setting of inlet tube is in the bottom in water purification chamber, the left side fixedly connected with outlet pipe of high-pressure pump, the upper end fixedly connected with switching piece of outlet pipe, the lower extreme and the switching piece fixed connection of spray pipe.

Furthermore, the plurality of water spraying components are uniformly distributed on the water spraying pipe along the axis of the water spraying pipe.

Further, the water spray assembly comprises a water spray block, the middle of the annular side of the water spray block is fixedly connected with water dispersing blocks, the number of the water dispersing blocks is five, a water storage cavity is formed in the middle of the water spray block, a water dispersing groove is formed in the water dispersing block, the water dispersing groove is communicated with the inside of the water storage cavity, and a water spray opening is formed in one end, far away from the water storage cavity, of the water dispersing groove.

Furthermore, the upper end ring side of the water spray pipe is movably connected with a fixing block, the ring side of the fixing block is fixedly connected with a supporting rod, and one end, far away from the fixing block, of the supporting rod is fixedly connected to the inner wall of the barrel.

Furthermore, the two supporting rods are arranged on two sides of the fixing block oppositely.

Further, the lower end of the ring side of the water spraying pipe is fixedly connected with a first bevel gear, the left side of the first bevel gear is meshed with a second bevel gear, the middle of the left side of the second bevel gear is fixedly connected with a connecting shaft, the middle of the connecting shaft is fixedly connected with a cam, the lower end of the cam is in contact connection with a movable rod, the upper end of the ring side of the movable rod is fixedly connected with a positioning plate, the lower end of the positioning plate is fixedly connected with a reset spring, the reset spring is sleeved on the ring side of the movable rod, and the lower end of the reset spring is fixedly connected to the bottom of the transmission cavity.

Furthermore, a support plate is movably connected to the position, close to the second bevel gear, of the connecting shaft.

Furtherly, the upper end right side fixedly connected with of baffle is used for communicateing the overflow pipe in muddy water chamber and water purification chamber, the middle part of overflow pipe is equipped with the trompil, the lower extreme of movable rod passes the bottom in transmission chamber and the trompil swing joint of overflow pipe, the movable rod is used for controlling opening and shutting of overflow pipe, the right-hand member setting of overflow pipe is in the water purification intracavity.

Furthermore, the lower end of the water inlet pipe is provided with a filter screen.

Further, the cylinder body is in threaded connection with the dust collection cover.

Has the advantages that:

1. according to the utility model, the mud-water cavity and the water purification cavity are arranged, so that the mud-water can be quickly separated, the water flow can be recycled, the utilization rate of water resources is greatly improved, and the waste of a large amount of water resources is effectively avoided.

2. The dust treatment device is in a relatively sealed environment, the treated dust is stored in the mud water cavity in a centralized manner, and after the dust is recovered and treated in a centralized manner, the dust cannot remain on the ground, so that the problem of secondary dust raising is effectively avoided, and the dust removal effect is ensured.

3. In the utility model, the spraying of the water mist is in a relatively sealed environment and cannot flow to the outside ground, thereby effectively avoiding the problem that the construction is influenced by the wet and slippery ground; meanwhile, the device is relatively small in size, good in dust removal effect in the environment with small space and adaptable to different construction environments, so that dust removal requirements in different environments are met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the internal structure of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the water spray assembly of FIG. 1 according to the present invention;

fig. 4 is an enlarged view of the utility model at a in fig. 2.

Description of the reference numerals: 1-cylinder, 2-base, 3-water spray pipe, 4-water spray component, 5-dust-absorbing cover, 6-dust-absorbing hole, 7-water inlet, 8-transmission cavity, 9-high pressure pump, 10-muddy water cavity, 11-purified water cavity, 12-clapboard, 13-overflow pipe, 14-sewage hole, 15-rotary vane, 16-support rod, 17-rotary shaft, 18-fixed block, 19-water inlet pipe, 20-water outlet pipe, 21-switching block, 22-first bevel gear, 23-second bevel gear, 24-connecting shaft, 25-support plate, 26-cam, 27-movable rod, 28-positioning plate, 29-reset spring, 30-sewage outlet, 401-water spray block, 402-water spray block, 403-water storage cavity, 404-water dispersing tank and 405-water spraying port.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "coupled" are to be construed broadly and may include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Example 1

Referring to fig. 1 to 4, the present invention provides a technical solution of a high-efficiency water mist dust removing device for a construction site:

a high-efficiency water mist dust removal device for a building site comprises a barrel body 1, wherein a base 2 is fixedly connected to the lower end of the barrel body 1, a spray pipe 3 is movably connected to the middle inside of the barrel body 1, a spray assembly 4 is fixedly connected to the ring side of the middle of the spray pipe 3, the number of the spray assemblies 4 is three, a dust absorption cover 5 is fixedly connected to the upper end of the barrel body 1 through threads, a plurality of dust absorption holes 6 are formed in the outer portion of the dust absorption cover 5, a rotating shaft 17 is fixedly connected to the upper end of the spray pipe 3, a rotary vane 15 is fixedly connected to the ring side of the middle of the rotating shaft 17, a muddy water cavity 10 is formed in the left inside of the base 2, a sewage discharge outlet 30 is formed in the bottom end of the muddy water cavity 10, a purified water cavity 11 is formed in the right inside of the base 2, a water inlet 7 is formed in the upper end of the right side of the purified water cavity 11, and a partition plate 12 is fixedly connected between the muddy water cavity 10 and the purified water cavity 11, seted up bilge pit 14 between barrel 1 and the muddy water chamber 10, transmission chamber 8 has been seted up to the upper end in water purification chamber 11, the inside right-hand member fixedly connected with high-pressure pump 9 in transmission chamber 8, the bottom lower extreme fixedly connected with inlet tube 19 of high-pressure pump 9, the lower extreme of inlet tube 19 is equipped with the filter screen and sets up the bottom at water purification chamber 11, the left side fixedly connected with outlet pipe 20 of high-pressure pump 9, the upper end fixedly connected with switching piece 21 of outlet pipe 20, the lower extreme and the switching piece 21 fixed connection of spray pipe 3.

By adopting the technical scheme, the cylinder body 1 is used for contacting and dedusting water mist and dust-containing gas, the base 2 is used for improving the stability of the device, the upper end of the spray pipe 3 is of a sealing structure, the spray assembly 4 can rotate under the reaction force of water flow when spraying water, so as to drive the spray pipe 3 to rotate, the dust absorption cover 5 and the dust absorption hole 6 are used for preventing foreign matters with larger external volume from entering the cylinder body 1 and influencing normal work, the rotating shaft 17 can rotate along with the rotation of the spray pipe 3, the rotary vane 15 rotates along with the rotating shaft 17 when the rotating shaft 17 rotates, so as to generate suction inside the dust absorption cover 5 and suck the external dust-containing gas into the dust absorption cover 5, the dedusted dust enters the muddy water cavity 10 through the sewage hole 14 under the action of gravity, the clean water cavity 11 is used for storing clean water, the clean water can be conveniently guided into the clean water pollution discharge cavity 11 through the water inlet 7, and the sewage in the muddy water cavity 10 can be conveniently discharged through the sewage outlet 30, high-pressure pump 9 that the model is sast adopts high-pressure pump 9, and through high-pressure pump 9 and inlet tube 19 with the water pumping in the water purification chamber 11 to outlet pipe 20 in, set up switching piece 21 and can avoid influencing the transmission of high-pressure rivers because of the rotation of spray pipe 3.

Specifically, the water spray assembly 4 comprises a water spray block 401, the middle of the ring side of the water spray block 401 is fixedly connected with water dispersion blocks 402, the number of the water dispersion blocks 402 is five, a water storage cavity 403 is formed in the middle of the water spray block 401, a water dispersion groove 404 is formed in the water dispersion block 402, the water dispersion groove 404 is communicated with the inside of the water storage cavity 403, and a water spray opening 405 is formed in one end, away from the water storage cavity 403, of the water dispersion groove 404.

Through adopting above-mentioned technical scheme, water spray piece 401 fixed connection is in the ring side of spray pipe 3, and high-pressure rivers get into water storage chamber 403 back, because scattered water tank 404 communicates with each other with water storage chamber 403 is inside, and water jet 405 slope sets up, and high-pressure rivers can drive water spray piece 401 rotatory after water jet 405 spouts, because fixed connection between water spray subassembly 4 and the spray pipe 3, the lower extreme of spray pipe 3 is through changeing joint block 21 and outlet pipe 20 swing joint, and the spray pipe 3 takes place to rotate.

Specifically, the upper end ring side of the spray pipe 3 is movably connected with a fixed block 18, the ring side of the fixed block 18 is fixedly connected with a support rod 16, and one end of the support rod 16 far away from the fixed block 18 is fixedly connected to the inner wall of the barrel 1.

Through adopting above-mentioned technical scheme, it can be fixed the fixed block 18 to set up branch 16 to carry on spacingly and support the upper end of spray pipe 3 and the lower extreme of pivot 17, avoid taking place to rock when rotating.

Specifically, a first bevel gear 22 is fixedly connected to the lower end of the annular side of the water spraying pipe 3, a second bevel gear 23 is engaged and connected to the left side of the first bevel gear 22, a connecting shaft 24 is fixedly connected to the middle of the left side of the second bevel gear 23, a cam 26 is fixedly connected to the annular side of the middle of the connecting shaft 24, and a supporting plate 25 is movably connected to the position, close to the second bevel gear 23, of the connecting shaft 24.

By adopting the above technical scheme, the first bevel gear 22 rotates along with the rotation of the water spray pipe 3, the second bevel gear 23 rotates along with the meshing connection of the second bevel gear 23 and the first bevel gear 22, and the connecting shaft 24 rotates along with the rotation of the second bevel gear 23, so that the cam 26 can be driven to rotate (corresponding to the connecting shaft 24 being an eccentric shaft of the cam 26, the cam 26 performs eccentric rotary motion around the connecting shaft 24), and when the connecting shaft 24 rotates, the connecting shaft 24 can be effectively supported through the support plate 25.

Specifically, the lower end of the cam 26 is in contact connection with a movable rod 27, the upper end of the ring side of the movable rod 27 is fixedly connected with a positioning plate 28, the lower end of the positioning plate 28 is fixedly connected with a return spring 29, the return spring 29 is sleeved on the ring side of the movable rod 27, and the lower end of the return spring 29 is fixedly connected to the bottom of the transmission cavity 8.

By adopting the above technical scheme, in the rotating process of the cam 26, the lower end of the cam is in contact with the upper end of the movable rod 27, the movable rod 27 is continuously pushed to move downwards, and meanwhile, under the thrust of the return spring 29, the movable rod 27 can automatically rise when not being pressed by the cam 26, so that the up-and-down reciprocating movement of the movable rod 27 is realized.

Specifically, the upper end right side fixedly connected with overflow pipe 13 of baffle 12, the lower extreme of movable rod 27 passes the bottom of transmission chamber 8 and the middle part swing joint of overflow pipe 13, the right-hand member of overflow pipe 13 sets up in water purification chamber 11.

By adopting the technical scheme, the overflow pipe 13 is used for overflowing clean water at the upper part in the muddy water cavity 10 into the clean water cavity 11, and when the movable rod 27 moves up and down, the opening and closing of the overflow pipe 13 can be controlled.

The working principle is as follows: before use, the device is firstly placed at a proper position, clean water is stored in the clean water cavity 11 through the water inlet 7 to avoid dust pollution, the high-pressure pump 9 is started, the clean water in the clean water cavity 11 enters the high-pressure pump 9 through the water inlet pipe 19, high-pressure water flow is sprayed into the spray pipe 3 through the water outlet pipe 20 and the adapter block 21 through the high-pressure pump 9, the upper end of the spray pipe 3 is in a sealed state to avoid upward spraying of the water flow, after the high-pressure water flow enters the water storage cavity 403, the spray pipe 3 rotates due to the fact that the water dispersing tank 404 is communicated with the inside of the water storage cavity 403 and the spray nozzle 405 is obliquely arranged, the high-pressure water flow can drive the spray block 401 to rotate after being sprayed out through the spray nozzle 405, due to the fact that the spray assembly 4 is fixedly connected with the spray pipe 3, the lower end of the spray pipe 3 is movably connected with the water outlet pipe 20 through the adapter block 21, the spray pipe 3 rotates, the rotating shaft 17 is driven to rotate, and the rotating vane 15 rotates along with the rotating shaft 17, suction is generated inside the dust collection cover 5, so that external dust-containing gas is sucked into the dust collection cover 5 through the dust collection hole 6 and enters the barrel body 1, when the dust-containing gas is contacted with water flow sprayed by the water spray opening 405 and water mist generated by the water flow impacting the inner wall of the barrel body 1, the movement paths of the gas and the water mist have larger contact area, so that a better dust collection effect can be achieved, the muddy water enters the muddy water cavity 10 through the sewage hole 14 under the action of gravity, the muddy water is prevented from being present outside and wasting water resources, the environment in the muddy water cavity 10 is relatively sealed, the density of dust particles is higher than that of water, the dust is precipitated at the bottom of the muddy water cavity 10, and the dust can be recovered in a concentrated manner; when the spray pipe 3 rotates, the first bevel gear 22 at the lower end rotates along with the rotation of the spray pipe 3, because the first bevel gear 22 is meshed with the second bevel gear 23, the second bevel gear 23 rotates along with the rotation of the first bevel gear 22, the connecting shaft 24 is respectively and fixedly connected with the second bevel gear 23 and the cam 26, the cam 26 rotates along with the rotation of the second bevel gear, in the rotating process of the cam 26, the lower end of the cam is contacted with the upper end of the movable rod 27, the movable rod 27 is continuously pushed to move downwards, meanwhile, the movable rod 27 can automatically rise when not pressed by the cam 26 under the thrust of the return spring 29, so that the self up-and-down reciprocating movement of the movable rod 27 is realized, the lower end of the movable rod 27 continuously rises and falls along with the thrust of the return pipe 13, the smooth and closing of the overflow pipe 13 can be controlled, when the overflow pipe 13 is opened, the clean water at the upper end in the muddy water cavity 10 flows into the clean water cavity 11, the cyclic utilization of water resources can be carried out, the waste of water resources is avoided, the muddy water at the lower end of the muddy water cavity 10 is precipitated at the bottom and can be recovered in a centralized manner, and after a period of time, the muddy water is discharged to a proper position in a centralized manner through the sewage draining outlet 30.

The electric elements in the paper are all electrically connected with an external master controller and 220V mains supply through a transformer, the master controller can be a conventional known device controlled by a computer and the like, the product type provided by the utility model is only used according to the structural characteristics of the product in the technical scheme, the product can be adjusted and modified after being purchased to be more matched with and accord with the technical scheme of the utility model, the product type is a technical scheme of the optimal application of the technical scheme, the product type can be replaced and modified according to the required technical parameters, and the product type is known by the technical personnel in the field, so the technical scheme provided by the utility model can clearly obtain the corresponding use effect by the technical scheme provided by the utility model in the field.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The high-efficiency water mist dust removal device for the construction site is characterized by comprising a barrel (1), wherein a base (2) is fixedly connected to the lower end of the barrel (1), a water spraying pipe (3) is movably connected to the middle inside of the barrel (1), a water spraying component (4) is fixedly connected to the middle ring side of the water spraying pipe (3), a dust absorption cover (5) is fixedly connected to the upper end of the barrel (1), a plurality of dust absorption holes (6) are formed in the outer portion of the dust absorption cover (5), a rotating shaft (17) is fixedly connected to the upper end of the water spraying pipe (3), a rotating vane (15) is fixedly connected to the middle ring side of the rotating shaft (17), a muddy water cavity (10) is formed in the left inside of the base (2), a sewage discharge opening (30) is formed in the bottom end of the left side of the muddy water cavity (10), a purified water cavity (11) is formed in the right inside of the base (2), water inlet (7) have been seted up to the right side upper end in water purification chamber (11), fixedly connected with baffle (12) between muddy water chamber (10) and water purification chamber (11), bilge pit (14) have been seted up between barrel (1) and muddy water chamber (10), transmission chamber (8) have been seted up to the upper end in water purification chamber (11), the inside right-hand member fixedly connected with high-pressure pump (9) in transmission chamber (8), the bottom lower extreme fixedly connected with inlet tube (19) of high-pressure pump (9), the lower extreme setting of inlet tube (19) is in the bottom in water purification chamber (11), the left side fixedly connected with outlet pipe (20) of high-pressure pump (9), the upper end fixedly connected with switching piece (21) of outlet pipe (20), the lower extreme and switching piece (21) fixed connection of spray pipe (3).

2. The high-efficiency water mist dust removing device for the construction site as claimed in claim 1, wherein the water spraying assembly (4) is provided with a plurality of water spraying pipes (3) which are evenly distributed on the water spraying pipes (3) along the axis of the water spraying pipes (3).

3. The high-efficiency water mist dust removal device for the building site as claimed in claim 2, wherein the water spray assembly (4) comprises a water spray block (401), a water dispersion block (402) is fixedly connected to the middle of the ring side of the water spray block (401), the number of the water dispersion block (402) is five, a water storage cavity (403) is formed in the middle of the water spray block (401), a water dispersion tank (404) is formed inside the water dispersion block (402), the water dispersion tank (404) is communicated with the inside of the water storage cavity (403), and a water spray hole (405) is formed in one end of the water dispersion tank (404) away from the water storage cavity (403).

4. The high-efficiency water mist dust removal device for the construction site as claimed in claim 2, wherein a fixing block (18) is movably connected to the upper ring side of the water spray pipe (3), a supporting rod (16) is fixedly connected to the ring side of the fixing block (18), and one end of the supporting rod (16) far away from the fixing block (18) is fixedly connected to the inner wall of the barrel body (1).

5. The high-efficiency water mist dust removing device for the construction site as claimed in claim 4, wherein the supporting rod (16) is provided with two sides which are oppositely arranged on the fixing block (18).

6. The high-efficiency water mist dust removing device for the construction site as claimed in claim 2, the lower end of the ring side of the water spray pipe (3) is fixedly connected with a first bevel gear (22), a second bevel gear (23) is meshed and connected with the left side of the first bevel gear (22), the middle part of the left side of the second bevel gear (23) is fixedly connected with a connecting shaft (24), a cam (26) is fixedly connected to the middle ring side of the connecting shaft (24), the lower end of the cam (26) is connected with a movable rod (27) in a contact manner, the upper end of the ring side of the movable rod (27) is fixedly connected with a positioning plate (28), the lower end of the positioning plate (28) is fixedly connected with a return spring (29), the return spring (29) is sleeved on the ring side of the movable rod (27), the lower end of the return spring (29) is fixedly connected to the bottom of the transmission cavity (8).

7. The high-efficiency water mist dust removing device for the construction site as claimed in claim 6, wherein a support plate (25) is movably connected to the connecting shaft (24) at a position close to the second bevel gear (23).

8. The high-efficiency water mist dust removal device for the construction site as claimed in claim 7, wherein an overflow pipe (13) for communicating the muddy water chamber (10) with the purified water chamber (11) is fixedly connected to the right side of the upper end of the partition plate (12), an opening is formed in the middle of the overflow pipe (13), the lower end of the movable rod (27) penetrates through the bottom of the transmission chamber (8) and is movably connected with the opening of the overflow pipe (13), the movable rod (27) is used for controlling the opening and closing of the overflow pipe (13), and the right end of the overflow pipe (13) is arranged in the purified water chamber (11).

9. The high-efficiency water mist dust removing device for the construction site as claimed in claim 1, wherein the lower end of the water inlet pipe (19) is provided with a filter screen.

10. The high-efficiency water mist dust removal device for the construction site as claimed in claim 1, wherein the barrel (1) is in threaded connection with the dust suction cover (5).