Construction site dust control apparatus

Abstract

This utility model relates to the field of construction technology and discloses a dust suppression device for construction sites, including a fog cannon body and a wind duct mounted on the fog cannon body via a support frame. An annular fixing seat is fixedly connected to the side wall of the output end of the wind duct. The surface of the annular fixing seat has equidistant receiving grooves, and the interior of the annular fixing seat has a connecting groove. A water inlet pipe is fixedly connected to the side wall of the annular fixing seat. This utility model features a rotatable connecting column. High-pressure water enters the corrugated pipe, causing it to extend. Through a connecting assembly, the rotating seat and connecting column are driven, allowing the nozzle output end to rotate out of the receiving groove and outside the annular fixing seat to achieve spraying. When not spraying water, the water pressure in the corrugated pipe decreases, causing the corrugated pipe to shorten. A coil spring causes the rotating seat to drive the connecting column and nozzle to rotate in opposite directions for storage. The nozzle rests against an elastic block to avoid exposure, reduce impurity adhesion and external damage, ensure atomization effect, improve dust suppression efficiency, and extend nozzle life.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically to dust suppression equipment for construction sites. Background Technology

[0002] A fog cannon is an environmentally friendly device that reduces dust pollution at construction sites by spraying water. It works by using a high-pressure pump and fine nozzles to atomize water into tiny particles, and then using the wind power of a duct to send the atomized water mist a long distance. The water mist condenses with airborne dust particles, and under the action of gravity, the dust settles, thus achieving the effect of reducing dust, removing haze, and purifying the air.

[0003] However, the atomizing nozzles of existing fog cannons are directly installed at the output end and exposed to the outside. Because the working environment of fog cannons contains a lot of dust, although the nozzles do not become clogged during operation, the sludge settled by the mist water will adhere to the nozzle surface after spraying. After being exposed to the sun, the sludge will dry and harden, adhering to the nozzle surface, changing the shape and size of the nozzle orifice, making the sprayed water mist particles uneven, and even causing water to spray out in streams, destroying the original fine atomization effect, reducing the condensation efficiency of water mist and dust particles, and affecting the dust suppression effect. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a construction site dust suppression device to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a construction site dust suppression device, including a fog cannon body and a wind duct mounted on the fog cannon body via a support frame. An annular fixing seat is fixedly connected to the side wall of the output end of the wind duct. The surface of the annular fixing seat has equidistantly spaced storage grooves. A connecting groove is formed inside the annular fixing seat. A water inlet pipe is fixedly connected to the side wall of the annular fixing seat. A fixed pipe communicating with the inside of the connecting groove is fixedly connected inside the annular fixing seat. A corrugated pipe is fixedly connected to the output end of the fixed pipe. A fixed shaft is fixedly connected inside the storage groove. A rotating seat is rotatably connected to the outer surface of the fixed shaft. A coil spring is installed at the connection between the fixed shaft and the rotating seat. A connecting column is fixedly connected to the top of the rotating seat. A connecting assembly is installed at the connection between the corrugated pipe and the connecting column. A nozzle is threadedly fixedly installed on the surface of the connecting column.

[0006] Furthermore, a positioning column is fixedly connected to the inner wall of the storage slot, a positioning plate is slidably connected inside the annular fixing seat, a fixing plate is fixedly connected to the surface of the positioning plate, and an elastic block is fixedly connected to the surface of the fixing plate away from the positioning plate.

[0007] Furthermore, the connecting assembly includes a right-angle elbow fixedly connected to the output end of the bellows, a rubber sealing ring fixedly connected to the end face of the right-angle elbow away from the bellows, a slot is provided on the surface of the connecting column, a rotating groove is provided on the inner wall of the slot, and the outer surface of the rubber sealing ring is rotatably connected to the inside of the rotating groove.

[0008] Furthermore, the right-angle elbow extends into the interior of the slot at one end near the rubber sealing ring, and the interior of the bellows is connected to the interior of the connecting column through the right-angle elbow, the rubber sealing ring, and the slot. The interior of the connecting column is connected to the interior of the nozzle.

[0009] Furthermore, the annular fixing seat has a groove inside that matches the positioning plate. The outer surface of the positioning plate is slidably connected inside the groove, and the positioning plate is fixedly connected inside the annular fixing seat by bolts.

[0010] Furthermore, the output end of the nozzle abuts against the surface of the elastic block, the surface of the elastic block near the opening of the receiving groove is arc-shaped, and the receiving groove is "L"-shaped.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model, by setting a rotatable connecting column, causes the corrugated pipe to elongate after high-pressure water enters it. This elongates the corrugated pipe and drives the rotating seat to rotate via the connecting component. The rotating seat then drives the nozzle to slide out of the opening of the receiving groove via the connecting column, extending the output end of the nozzle to the outside of the annular fixed seat. High-pressure water is then atomized and sprayed out through the nozzle. When water spraying is not needed, the water pressure inside the corrugated pipe decreases, and the elasticity of the coil spring causes the rotating seat to drive the connecting column and the nozzle to rotate in opposite directions, retracting the nozzle into the receiving groove. Simultaneously, the output end of the nozzle rests against the surface of the elastic block, preventing direct exposure and reducing the adhesion of dust, sand, and other impurities, as well as the possibility of external collisions and scratches. This helps ensure the consistency and stability of the atomization effect, allowing the water mist to better condense with dust particles, improving dust suppression efficiency, reducing the risk of nozzle damage, and extending the nozzle's service life.

[0013] 2. This utility model, through the detachable fixing plate, facilitates the replacement of the elastic block, thereby providing better protection for the output end of the nozzle and enhancing its practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the connection between the ventilation duct and the annular fixing seat in this utility model;

[0016] Figure 3This is a cross-sectional view of the annular fixing base in this utility model;

[0017] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0018] Figure 5 This is a schematic diagram showing the connection between the elastic block, the fixing plate, and the positioning plate in this utility model;

[0019] Figure 6 This is an exploded view of the connecting component in this utility model.

[0020] The attached diagram is labeled as follows: 1. Fog cannon body; 2. Air duct; 3. Annular fixed base; 4. Storage slot; 5. Connecting slot; 6. Water inlet pipe; 7. Fixed pipe; 8. Corrugated pipe; 9. Connecting assembly; 91. Right angle elbow; 92. Rubber sealing ring; 93. Rotating slot; 94. Slot; 10. Fixed shaft; 11. Coil spring; 12. Rotating base; 13. Positioning post; 14. Connecting post; 15. Nozzle; 16. Elastic block; 17. Fixed plate; 18. Positioning plate. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0022] Figures 1-6 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-6 The present invention will be further described below.

[0023] The construction site dust suppression equipment includes a fog cannon body 1 and a wind duct 2 mounted on the fog cannon body 1 via a support frame. An annular mounting base 3 is fixedly connected to the side wall of the output end of the wind duct 2. The surface of the annular mounting base 3 has equidistantly spaced collection slots 4, arranged in a ring shape inside the annular mounting base 3. The diameter of one opening of each collection slot 4 is larger than the diameter of the other opening. A connecting groove 5, which is annular, is formed inside the annular mounting base 3. A water inlet pipe 6 is fixedly connected to the side wall of the annular mounting base 3. The output end of the water inlet pipe 6 communicates with the interior of the connecting groove 5, and the input end of the water inlet pipe 6 extends to a water tank mounted on the fog cannon body 1 via a water pump. The water tank supply system and the internal wind pressure structure of the wind duct 2 are existing technologies and are identical to the water supply structure and wind pressure structure in Chinese utility model patent CN213648125U. The fixed base 3 is internally fixedly connected to a fixed pipe 7 that communicates with the inside of the connecting groove 5. The output end of the fixed pipe 7 is fixedly connected to a bellows 8. The inside of the receiving groove 4 is fixedly connected to a fixed shaft 10. The outer surface of the fixed shaft 10 is rotatably connected to a rotating seat 12. A coil spring 11 is installed at the connection between the fixed shaft 10 and the rotating seat 12. Under normal conditions, the elasticity of the coil spring 11 causes the end face of the rotating seat 12 to rotate away from and closer to the fixed pipe 7. A connecting column 14 is fixedly connected to the top of the rotating seat 12. The end face of the rotating seat 12 away from the connecting column 14 is arc-shaped. A connecting component 9 is installed at the connection between the bellows 8 and the connecting column 14. The inside of the bellows 8 is connected to the inside of the connecting column 14 through the connecting component 9. A nozzle 15 is fixedly installed on the surface of the connecting column 14. A cavity is provided inside the connecting column 14 that communicates with the connecting component 9 and the inside of the nozzle 15.

[0024] The distance from the center of the fixed shaft 10 to the output end face of the nozzle 15 is greater than the distance from the center of the fixed shaft 10 to the receiving groove 4. That is, when the nozzle 15 rotates 90 degrees clockwise, the output end face of the nozzle 15 can extend to the outside of the receiving groove 4, ensuring that the area of ​​water mist sprayed by the nozzle 15 is within the effective range.

[0025] In this embodiment, by setting a rotatable connecting column 14, when high-pressure water enters the bellows 8, the bellows 8 actively extends and connects to the inside of the connecting column 14 through the connecting component 9. When the bellows 8 extends, it drives the connecting column 14 and the rotating seat 12 to rotate. The rotating seat 12 drives the nozzle 15 to slide out of the opening of the receiving groove 4 through the connecting column 14, so that the output end of the nozzle 15 extends to the outside of the annular fixed seat 3. Then, the high-pressure water is atomized and sprayed out through the nozzle 15. When water spraying is not needed, the water pressure inside the bellows 8 is reduced. The pressure is lowered, and the elasticity of the coil spring 11 causes the rotating seat 12 to drive the connecting column 14 and the nozzle 15 to rotate in opposite directions, so that the nozzle 15 is stored inside the storage groove 4. At the same time, the output end of the nozzle 15 abuts against the surface of the elastic block 16, preventing it from being directly exposed to the outside. This reduces the possibility of dust, sand and other impurities adhering to the surface, as well as external collisions and scratches. It helps to ensure the consistency and stability of the atomization effect, allowing the water mist to better condense with dust particles, improving dust reduction efficiency, reducing the risk of damage to the nozzle 15, and extending the service life of the nozzle 15.

[0026] Specifically, the inner wall of the storage slot 4 is fixedly connected to the positioning column 13, the inner wall of the annular fixing seat 3 is slidably connected to the positioning plate 18, the surface of the positioning plate 18 is fixedly connected to the fixing plate 17, and the surface of the fixing plate 17 away from the positioning plate 18 is fixedly connected to the elastic block 16.

[0027] In this embodiment, the detachable fixing plate 17 facilitates the replacement of the elastic block 16, which provides good protection for the output end of the nozzle 15. When replacing, the bolts penetrating the positioning plate 18 can be removed directly with a wrench, and then the positioning plate 18 can be pulled out to remove the positioning plate 18, fixing plate 17 and elastic block 16 as a whole, which facilitates the replacement or cleaning of the elastic block 16.

[0028] Specifically, the connecting component 9 includes a right-angle elbow 91 fixedly connected to the output end of the bellows 8. A rubber sealing ring 92 is fixedly connected to the end face of the right-angle elbow 91 away from the bellows 8. A slot 94 is opened on the surface of the connecting column 14. A rotating groove 93 is opened on the inner wall of the slot 94. The outer surface of the rubber sealing ring 92 is rotatably connected to the inside of the rotating groove 93.

[0029] In this embodiment, by setting the connecting component 9, when the water pressure inside the bellows 8 increases and the bellows 8 becomes longer, the rubber sealing ring 92 rotates inside the rotating groove 93, causing the connecting column 14 to rotate passively. When the connecting column 14 rotates, the bellows 8 will not be bent, thus ensuring the stability of the bellows 8 during expansion and contraction.

[0030] Specifically, the right-angle elbow 91 extends into the interior of the slot 94 near the rubber sealing ring 92. The interior of the bellows 8 is connected to the interior of the connecting post 14 through the right-angle elbow 91, the rubber sealing ring 92, and the slot 94. The interior of the connecting post 14 is connected to the interior of the nozzle 15.

[0031] In this embodiment, by setting a rubber sealing ring 92, the sealing performance between the right-angle elbow 91 and the connecting post 14 can be guaranteed. At the same time, by using the rotatable structure of the rubber sealing ring 92 inside the rotating groove 93, the sealing performance between the right-angle elbow 91 and the connecting post 14 can still be guaranteed when the connecting post 14 rotates.

[0032] Specifically, the annular fixing seat 3 has a matching groove for the positioning plate 18 inside. The outer surface of the positioning plate 18 is slidably connected to the inside of the groove, and the positioning plate 18 is fixedly connected to the inside of the annular fixing seat 3 by bolts. The positioning plate 18 is T-shaped in general, and a protrusion is provided on the upper surface of the positioning plate 18 near the storage groove 4.

[0033] In this embodiment, a protrusion is provided on the upper surface of the positioning plate 18 near the storage groove 4. The bolt passes through the protrusion and can be easily fixed together with the annular fixing seat 3. At the same time, due to the shape of the positioning plate 18, after the positioning plate 18 is inserted into the slide groove and fixed, the position of the elastic block 16 and the fixing plate 17 can be fixed.

[0034] Specifically, the output end of the nozzle 15 abuts against the surface of the elastic block 16, the surface of the elastic block 16 near the opening of the storage groove 4 is arc-shaped, and the storage groove 4 is "L"-shaped.

[0035] In this embodiment, since the surface of the elastic block 16 near the opening of the storage groove 4 is arc-shaped, when the nozzle 15 rotates counterclockwise, the resistance will not increase due to the obstruction of the elastic block 16, so that the nozzle 15 can rotate stably to the specified angle, and the output end face of the nozzle 15 can completely abut against the surface of the elastic block 16. This allows the output end of the nozzle 15 to be wiped while also preventing dust and dirt from adhering to the output end surface of the nozzle 15.

[0036] The working principle and usage process of this utility model are as follows: When in use, the water pump on the main body 1 of the fog cannon is started to draw water from the water tank into the connecting groove 5 through the water inlet pipe 6. The water in the connecting groove 5 enters the corrugated pipe 8 through the fixed pipe 7. At this time, the water pressure inside the corrugated pipe 8 increases, causing the corrugated pipe 8 to be in a stretched state. After the corrugated pipe 8 is stretched, the connecting column 14 and the rotating seat 12 are driven to rotate around the fixed shaft 10 through the connecting component 9. The rotating seat 12 will drive the nozzle 15 to slide out of the opening of the receiving groove 4 through the connecting column 14, so that the output end of the nozzle 15 extends to the outside of the annular fixed seat 3. When the surface of the rotating seat 12 abuts against the surface of the positioning column 13, the rotating seat 12 stops rotating, the angle of the nozzle 15 is restricted, and the water inside the corrugated pipe 8 enters the connecting column 14 through the right angle elbow 91 and the rubber sealing ring 92. Then, the high-pressure water is atomized and sprayed out through the nozzle 15.

[0037] When water spraying is not needed, the water pressure inside the bellows 8 decreases, and the bellows 8 will slowly shorten. Through the elasticity of the coil spring 11, the rotating seat 12 drives the connecting column 14 and the nozzle 15 to rotate in opposite directions until the nozzle 15 is stored inside the receiving groove 4. At the same time, the output end of the nozzle 15 abuts against the surface of the elastic block 16.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A construction site dust control apparatus comprising a fog cannon main body (1) and a wind tube (2) installed on the fog cannon main body (1) by a support bracket, characterized in that: The output end sidewall of the air duct (2) is fixedly connected to an annular fixing seat (3). The surface of the annular fixing seat (3) is provided with a collection groove (4) at equal intervals. The interior of the annular fixing seat (3) is provided with a connecting groove (5). The sidewall of the annular fixing seat (3) is fixedly connected to a water inlet pipe (6). The interior of the annular fixing seat (3) is fixedly connected to a fixed pipe (7) that communicates with the interior of the connecting groove (5). The output end of the fixed pipe (7) is fixedly connected to a corrugated pipe (8). The interior of the collection groove (4) is fixedly connected to a fixed shaft (10). The outer surface of the fixed shaft (10) is rotatably connected to a rotating seat (12). A coil spring (11) is installed at the connection between the fixed shaft (10) and the rotating seat (12). The top of the rotating seat (12) is fixedly connected to a connecting column (14). A connecting component (9) is installed at the connection between the corrugated pipe (8) and the connecting column (14). A nozzle (15) is threadedly fixedly installed on the surface of the connecting column (14).

2. The worksite dust reduction apparatus of claim 1, wherein: The inner wall of the storage slot (4) is fixedly connected to a positioning column (13), the inside of the annular fixing seat (3) is slidably connected to a positioning plate (18), the surface of the positioning plate (18) is fixedly connected to a fixing plate (17), and the surface of the fixing plate (17) away from the positioning plate (18) is fixedly connected to an elastic block (16).

3. The worksite dust reduction apparatus of claim 1, wherein: The connecting assembly (9) includes a right-angle elbow (91) fixedly connected to the output end of the bellows (8). A rubber sealing ring (92) is fixedly connected to the end face of the right-angle elbow (91) away from the bellows (8). A slot (94) is provided on the surface of the connecting column (14). A rotating groove (93) is provided on the inner wall of the slot (94). The outer surface of the rubber sealing ring (92) is rotatably connected to the inside of the rotating groove (93).

4. The worksite dust reduction apparatus of claim 3, wherein: The right-angle elbow (91) extends into the slot (94) at one end near the rubber sealing ring (92). The interior of the bellows (8) is connected to the interior of the connecting post (14) through the right-angle elbow (91), the rubber sealing ring (92) and the slot (94). The interior of the connecting post (14) is connected to the interior of the nozzle (15).

5. The worksite dust reduction apparatus of claim 2, wherein: The annular fixing seat (3) has a matching groove for the positioning plate (18) inside. The outer surface of the positioning plate (18) is slidably connected to the inside of the groove, and the positioning plate (18) is fixedly connected to the inside of the annular fixing seat (3) by bolts.

6. The construction site dust suppression equipment according to claim 1, characterized in that: The output end of the nozzle (15) abuts against the surface of the elastic block (16). The surface of the elastic block (16) near the opening of the storage groove (4) is arc-shaped, and the storage groove (4) is "L"-shaped.

Images