Foundation pit dust falling equipment for building municipal engineering

Abstract

The invention provides foundation pit dust falling equipment for building municipal engineering. The foundation pit dust falling equipment comprises a dust suction mechanism and a spraying dust falling mechanism. The dust collection mechanism comprises a filter and a dust collection fan which are connected, the spraying dust falling mechanism comprises a supporting rod, a plurality of spraying heads and a plurality of air outlet pipes, the first end of the supporting rod is connected with the top of the dust collection mechanism, the spraying heads and the air outlet pipes are all connected to the second end of the supporting rod, and the air outlet pipes are arranged at the spraying heads in a one-to-one correspondence mode; and each air outlet pipe is communicated with the dust collection fan. According to the dust removal system, the dust collection fan of the dust collection mechanism can suck dust-containing air in a construction site into the filter for filtering and dust removal, and the spraying head of the spraying and dust removal mechanism can spray water to the construction site to reduce raised dust, so that a dual dust removal system is formed, and the dust removal effect is good; besides, a dust collection fan of the dust collection mechanism is communicated with each air outlet pipe, and each air outlet pipe is arranged at each spray head in a one-to-one correspondence manner, so that the spraying range of the spray heads can be expanded, and the dust falling effect is further enhanced.

Description

Technical Field

[0001] The present application relates to the field of building construction, and particularly to a foundation pit dust reduction device for building municipal engineering. Background Technique

[0002] A foundation pit is the space below the ground excavated for the construction of a building foundation and basement. The foundation pit belongs to a temporary project, and its function is to enable the masonry operation of the foundation to be carried out at the designated position according to the design.

[0003] In current building municipal engineering, during the construction process of workers in the foundation pit, a large amount of dust is generated and the dust is easily blown up by the wind to form dust flying, which will not only affect the natural environment but also cause harm to the health of construction workers. Therefore, reducing the dust flying in the foundation pit is an important link in protecting the environment and the health of construction workers.

[0004] The existing foundation pit dust reduction devices for building municipal engineering have poor dust reduction effects. Therefore, improving the dust reduction effect of the foundation pit dust reduction devices for building municipal engineering is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a foundation pit dust reduction device for building municipal engineering to solve the technical problem of poor dust reduction effect in the prior art.

[0006] To achieve the above purpose, the technical solution adopted by the present application is: providing a foundation pit dust reduction device for building municipal engineering, including: A dust suction mechanism, the dust suction mechanism includes a filter and a dust suction fan connected to each other; A spray dust reduction mechanism, the spray dust reduction mechanism includes a support rod, a plurality of spray heads and a plurality of air outlet pipes. The first end of the support rod is connected to the top of the dust suction mechanism, and the plurality of spray heads and the plurality of air outlet pipes are all connected to the second end of the support rod. The plurality of spray heads and the plurality of air outlet pipes are evenly spaced around the axis of the support rod respectively, and each air outlet pipe is provided at each spray head correspondingly, and each air outlet pipe is communicated with the dust suction fan.

[0007] Further, each spray head is hinged to the second end of the support rod. The foundation pit dust reduction device further includes a sleeve and a plurality of connecting rods. The sleeve is adjustably connected to the outer wall of the support rod, and the adjustment direction of the sleeve is parallel to the axis of the support rod. The first end of each connecting rod is hinged to the sleeve, and the second end of each connecting rod is respectively hinged to each spray head correspondingly.

[0008] Further, a plurality of groups of first connection holes are formed in the support rod around its axis. Each group of the first connection holes includes a plurality of the first connection holes. Each of the first connection holes in each group of the first connection holes is uniformly spaced along the axial direction of the support rod. A plurality of second connection holes are formed in the sleeve around the axis of the support rod. Each of the second connection holes is inserted into a corresponding one of the first connection holes through a plug-in member.

[0009] Further, the support rod is a hollow rod and both ends of the support rod are through. Each of the air outlet pipes is communicated with the dust suction fan through the hollow support rod.

[0010] Further, the foundation pit dust reduction device further includes a corrugated pipe and a telescopic rod. The corrugated pipe is connected between the dust suction fan and the support rod. Each of the air outlet pipes is communicated with the dust suction fan through the corrugated pipe. The telescopic rod is telescopically connected between the dust suction mechanism and the corrugated pipe. The adjustment directions of both the corrugated pipe and the telescopic rod are parallel to the axis of the support rod.

[0011] Further, the filter includes a housing, a cyclone, a cyclone cover and a filter assembly. An air inlet is formed in the side wall of the housing. The cyclone is arranged inside the housing. The cyclone is cylindrical and has an open mouth. The air inlet is communicated with the internal cavity of the cyclone. The cyclone cover is covered on one end of the housing. The cyclone cover has an installation cavity, a cover body inlet and a cover body outlet. Both the cover body inlet and the cover body outlet are communicated with the installation cavity. The cover body inlet is communicated with the internal cavity of the cyclone. The cover body outlet is communicated with the dust suction fan. The filter assembly is located in the installation cavity.

[0012] Further, the cover body inlet extends towards the cyclone to form a cylindrical extension portion, and the cylindrical extension portion extends into the internal cavity of the cyclone. A plurality of circular through holes are formed in the cylindrical extension portion.

[0013] Further, the foundation pit dust reduction device further includes a traveling mechanism, and the traveling mechanism is installed at the bottom of the dust suction mechanism.

[0014] Further, the traveling mechanism includes a base and a plurality of feet. The base is installed at the bottom of the dust suction mechanism. A plurality of the feet are rotatably installed on the base. The foot includes three rolling wheels and a pair of oppositely arranged Y-shaped support plates. The three rolling wheels are rotatably installed between the pair of Y-shaped support plates, and the three rolling wheels are respectively arranged at three end points of the Y-shaped support plates one by one.

[0015] Furthermore, the foundation pit dust suppression device further includes ground nails, which are detachably installed at the bottom of the dust suction mechanism, and the dust suction mechanism is inserted into the ground through the ground nails.

[0016] The beneficial effects of the foundation pit dust suppression device for building municipal engineering provided by this application are as follows: For the foundation pit dust suppression device for building municipal engineering provided by this application, the dust suction fan of the dust suction mechanism can suck the dust-containing air at the construction site into the filter for filtering and dust suppression, and the spray heads of the spray dust suppression mechanism can spray water at the construction site to reduce dust, forming a dual dust suppression system with good dust suppression effect. In addition, since the dust suction fan of the dust suction mechanism is connected to each air outlet pipe, and each air outlet pipe is correspondingly arranged at each spray head, the air that has been filtered and dust-suppressed can be transported to each spray head through each air outlet pipe, expanding the spray range of the spray head and further enhancing the dust suppression effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the foundation pit dust suppression device for building municipal engineering provided by the embodiment of this application; Figure 2 It is a schematic diagram of the internal structure of the foundation pit dust suppression device for building municipal engineering provided by the embodiment of this application (moving out the traveling mechanism); Figure 3 It is a schematic diagram of the internal structure of the filter provided by the embodiment of this application; Figure 4 is Figure 2 a partial enlarged view of A in Figure 5 is Figure 2 a partial enlarged view of B in

[0019] Among them, the reference numerals in the drawings are as follows: 1. Dust suction mechanism; 11. Filter; 111. Outer shell; 112. Cyclone; 1121. Open mouth; 1122. Dust outlet; 113. Cyclone cover; 1131. Installation cavity; 1132. Cover inlet; 1133. Cover outlet; 1134. Cylindrical extension; 1135. Circular through hole; 114. Air inlet; 12. Dust suction fan; 13. Dust collection box; 131. Opening; 14. Connecting ring; 2. Spray dust suppression mechanism; 21. Support rod; 211. First connection hole; 22. Spray head; 23. Air outlet pipe; 3. Sleeve; 31. Second connection hole; 4. Connecting rod; 5. Plug-in part; 6. Bellows; 7. Telescopic rod; 8. Traveling mechanism; 81. Base; 82. Support leg; 821. Rolling wheel; 822. Y-shaped support plate; 9. Ground nail. Detailed implementation manners

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following further details this application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0024] Please refer to Figures 1 to 5, an embodiment of the present application provides a foundation pit dust suppression device for building municipal engineering, including a dust suction mechanism 1 and a spray dust suppression mechanism 2. The dust suction mechanism 1 includes a connected filter 11 and a dust suction fan 12. The spray dust suppression mechanism 2 includes a support rod 21, a plurality of spray heads 22, and a plurality of air outlet pipes 23. The first end of the support rod 21 is connected to the top of the dust suction mechanism 1, and the plurality of spray heads 22 and the plurality of air outlet pipes 23 are both connected to the second end of the support rod 21. The plurality of spray heads 22 and the plurality of air outlet pipes 23 are evenly spaced around the axis of the support rod 21, thus forming an umbrella-like structure. Each air outlet pipe 23 is correspondingly arranged at each spray head 22, specifically: each air outlet pipe 23 is correspondingly arranged below each spray head 22, and each air outlet pipe 23 is communicated with the dust suction fan 12.

[0025] The specific working principle of the foundation pit dust suppression device for building municipal engineering provided in this embodiment is as follows: Start the dust suction fan 12 and the spray heads 22. The dust suction fan 12 sucks the dust-containing air at the construction site into the filter 11. The dust-containing air is mainly the dust-containing air near the ground at the construction site and containing large particle impurities. The filter 11 filters and suppresses the sucked dust-containing air. At the same time, the spray heads 22 spray water onto the construction site to increase the humidity of the dust-containing air that floats upward away from the ground and contains small particle impurities at the construction site, so as to make the dust settle to the ground and reduce the probability of the dust being inhaled by the construction personnel. In addition, the air processed by the filter 11 is transported to the lower part of each spray head 22 through the air outlet pipe 23, and the spraying range of the liquid sprayed by the spray heads 22 can be expanded under the action of the flowing air.

[0026] For the foundation pit dust suppression device for building municipal engineering provided in this embodiment, the dust suction fan 12 of the dust suction mechanism 1 can suck the dust-containing air at the construction site into the filter 11 for filtering and dust suppression, and the spray heads 22 of the spray dust suppression mechanism 2 can spray water onto the construction site to reduce dust, forming a double dust suppression system with good dust suppression effect. In addition, since the dust suction fan 12 of the dust suction mechanism 1 is communicated with each air outlet pipe 23, and each air outlet pipe 23 is correspondingly arranged at each spray head 22, therefore, the air processed by filtering and dust suppression can be transported to each spray head 22 through each air outlet pipe 23 to expand the spraying range of the spray heads 22, and further enhance the dust suppression effect.

[0027] In an embodiment of the present application, please refer to Figures 1 to 5 , each spray head 22 is hinged to the second end of the support rod 21. The foundation pit dust suppression device further includes a sleeve 3 and a plurality of connecting rods 4. The sleeve 3 is adjustably connected to the outer wall of the support rod 21, and the adjustment direction of the sleeve 3 is parallel to the axis of the support rod 21. The first end of each connecting rod 4 is hinged to the sleeve 3, and the second end of each connecting rod 4 is respectively and correspondingly hinged to each spray head 22.

[0028] The foundation pit dust suppression equipment for building municipal engineering provided in this embodiment enables the sleeve 3 to move along the axis of the support rod 21. Since each spray head 22 is hinged to the second end of the support rod 21, the first end of each connecting rod 4 is hinged to the sleeve 3, and the second end of each connecting rod 4 is respectively and correspondingly hinged to each spray head 22. Therefore, a four-bar linkage mechanism can be formed between the support rod 21, the sleeve 3, each connecting rod 4 and each spray head 22, enabling each spray head 22 to swing up and down in a plane parallel to the axis of the support rod 21, thereby adjusting the spraying range of the spray head 22 and expanding the applicable range of the equipment. It should be noted that after adjusting the position of the sleeve 3 relative to the support rod 21, any one or more hinge points in the above four-bar linkage mechanisms can be locked, and the locking principle of the hinge points is prior art and will not be elaborated here.

[0029] In an embodiment of the present application, please refer to Figures 1 to 5 , the support rod 21 is provided with multiple groups of first connection holes 211 around its axis. Each group of first connection holes 211 includes multiple first connection holes 211, and the first connection holes 211 in each group of first connection holes 211 are evenly spaced along the axis direction of the support rod 21. The sleeve 3 is provided with multiple second connection holes 31 around the axis of the support rod 21, and each second connection hole 31 is respectively inserted into the corresponding first connection hole 211 through a plug-in member 5. It should be noted that the plug-in member 5 can be set as a pin, and the first connection hole 211 and the second connection hole 31 are correspondingly set as smooth holes. Or, the plug-in member 5 can be set as a screw, and the first connection hole 211 and the second connection hole 31 are correspondingly set as threaded holes.

[0030] The foundation pit dust suppression equipment for building municipal engineering provided in this embodiment enables the sleeve 3 to move along the axis of the support rod 21, so that the multiple second connection holes 31 on the sleeve 3 respectively align with the multiple first connection holes 211, and the multiple plug-in members 5 are inserted between the corresponding pairs of first connection holes 211 and second connection holes 31, thereby adjusting the position of the sleeve 3 relative to the support rod 21, having the advantages of simple structure and convenient operation.

[0031] In an embodiment of the present application, please refer to Figures 1 to 5 , the support rod 21 is a hollow rod and both ends of the support rod 21 are through, that is, the internal cavity of the support rod 21 is communicated with both the first end and the second end of the support rod 21. Each air outlet pipe 23 is respectively communicated with the dust suction fan 12 through the hollow support rod 21.

[0032] The foundation pit dust reduction equipment for building municipal engineering provided by this embodiment, the support rod 21 can not only support a plurality of spray heads 22 on the top of the dust suction mechanism 1, but also the support rod 21 is set as a hollow rod capable of connecting a plurality of air outlet pipes 23 with the dust suction fan 12, without the need to separately connect each air outlet pipe 23 with the dust suction fan 12 using multiple pipes one by one, which can simplify the structure, save the equipment assembly time, improve the construction efficiency, and reduce the failure rate of the equipment.

[0033] In an embodiment of the present application, please refer to Figures 1 to 5 , the foundation pit dust reduction equipment further includes a corrugated pipe 6 and a telescopic rod 7. The corrugated pipe 6 is connected between the dust suction fan 12 and the support rod 21. Each air outlet pipe 23 is respectively connected with the dust suction fan 12 through the corrugated pipe 6. Specifically, each air outlet pipe 23 is respectively connected with the dust suction fan 12 through the support rod 21 set as a hollow rod and the corrugated pipe 6. The telescopic rod 7 is telescopically connected between the dust suction mechanism 1 and the corrugated pipe 6. The adjustment directions of the corrugated pipe 6 and the telescopic rod 7 are both parallel to the axis of the support rod 21. Among them, it should be noted that the telescopic rod 7 can be set as a pneumatic telescopic rod, a hydraulic telescopic rod, an electric push rod or other telescopic rods, which is not uniquely limited here, and the telescopic principles of various telescopic rods are all prior arts and will not be elaborated here.

[0034] Since the dust raising heights at different construction sites are different, the foundation pit dust reduction equipment for building municipal engineering provided by this embodiment can adjust the telescopic length of the corrugated pipe 6 by adjusting the length of the telescopic rod 7 located between the dust suction mechanism 1 and the corrugated pipe 6, and further can adjust the height of the spray head 22, so as to meet different construction requirements and have a wide application range.

[0035] In an embodiment of the present application, please refer to Figures 1 to 5 , the filter 11 includes a housing 111, a cyclone 112, a cyclone cover 113 and a filter assembly (not shown in the figure). An air inlet 114 is opened on the side wall of the housing 111. The cyclone 112 is arranged inside the housing 111. The cyclone 112 is cylindrical and has an open mouth 1121. The air inlet 114 is communicated with the internal cavity of the cyclone 112. The cyclone cover 113 is covered on one end of the housing 111. The cyclone cover 113 has an installation cavity 1131, a cover body inlet 1132 and a cover body outlet 1133. Both the cover body inlet 1132 and the cover body outlet 1133 are communicated with the installation cavity 1131. The cover body inlet 1132 is communicated with the internal cavity of the cyclone 112. The cover body outlet 1133 is communicated with the dust suction fan 12. The filter assembly is located in the installation cavity 1131.

[0036] The specific working principle of the filter 11 of the foundation pit dust reduction equipment for building municipal engineering provided by this embodiment is: The air inlet 114 is communicated with the cyclone 112. Thus, the dusty air at the construction site enters the cyclone 112 from the air inlet 114, and the dust in the dusty air can be separated and settled from the air flow within the cyclone 112; and the cyclone 112 is provided with an open mouth 1121, from which the air flow can flow out of the cyclone 112; the air flow separated and settled by the cyclone 112 can enter the installation cavity 1131 from the cover body inlet 1132, and after being filtered and separated by the filter assembly within the installation cavity 1131, it flows out of the cyclone cover 113 from the cover body outlet 1133.

[0037] The foundation pit dust reduction equipment for building municipal engineering provided in this embodiment can enable the dusty air at the construction site to flow through the cyclone 112 and the filter assembly within the installation cavity 1131 in sequence, so that the dust can be separated from the air, purify the air at the construction site, thereby protecting the natural environment and avoiding harm to the bodies of construction workers. In addition, the cyclone 112 is designed to be cylindrical, which has the advantage of being convenient for processing and manufacturing, thus reducing the production cost.

[0038] Furthermore, the number of air inlets 114 opened on the side wall of the outer shell 111 is at least two, such as two, three, four or other numbers, which are not uniquely defined here.

[0039] In the foundation pit dust reduction equipment for building municipal engineering provided in this embodiment, a plurality of air inlets 114 are opened on the side wall of the outer shell 111, which can increase the amount of dusty air inhaled into the filter 11 at the same time, thereby improving the air purification efficiency.

[0040] Furthermore, the cover body inlet 1132 extends towards the cyclone 112 to form a cylindrical extension part 1134, and the cylindrical extension part 1134 extends into the inner cavity of the cyclone 112, and a plurality of circular through holes 1135 are opened on the cylindrical extension part 1134.

[0041] In the foundation pit dust reduction equipment for building municipal engineering provided in this embodiment, the air flow separated and settled by the cyclone 112 can pass through the circular through holes 1135 and enter the installation cavity 1131 through the cover body inlet 1132, and the circular through holes 1135 of the cylindrical extension part 1134 have a filtering effect, so that the dust in the air flow can be further filtered and separated, improving the purification effect of the filter 11.

[0042] In an embodiment of the present application, please refer to Figures 1 to 5 , the foundation pit dust reduction equipment further includes a traveling mechanism 8, and the traveling mechanism 8 is installed at the bottom of the dust suction mechanism 1.

[0043] A traveling mechanism 8 is installed at the bottom of the dust suction mechanism 1, which facilitates loading the foundation pit dust reduction equipment for construction municipal engineering provided in this embodiment onto a transportation device for transporting to the construction site, and also facilitates flexibly adjusting the position of the equipment according to actual construction requirements at the construction site, with a wide application range and high flexibility.

[0044] In one embodiment of the present application, please refer to Figures 1 to 5 , the traveling mechanism 8 includes a base 81 and a plurality of feet 82. The base 81 is installed at the bottom of the dust suction mechanism 1, and a plurality of feet 82 are all rotatably installed on the base 81. The feet 82 include three rolling wheels 821 and a pair of oppositely arranged Y-shaped support plates 822. The three rolling wheels 821 are all rotatably installed between the pair of Y-shaped support plates 822, and the three rolling wheels 821 are respectively arranged at the three end points of the Y-shaped support plates 822 one by one.

[0045] For the foundation pit dust reduction equipment for construction municipal engineering provided in this embodiment, the feet 82 of the traveling mechanism 8 can rotate relative to the base 81, and each foot 82 includes a pair of oppositely arranged Y-shaped support plates 822 and three rolling wheels 821 arranged between this pair of Y-shaped support plates 822, so that each foot 82 makes multi-point contact with the ground at the construction site, having the advantage of driving force, and can make the foundation pit dust reduction equipment for construction municipal engineering provided in this embodiment move smoothly on various complex construction grounds by respectively controlling each rolling wheel 821, with a wide application range and high moving flexibility.

[0046] In one embodiment of the present application, please refer to Figures 1 to 5 , the foundation pit dust reduction equipment further includes ground nails 9. The ground nails 9 are detachably installed at the bottom of the dust suction mechanism 1, and the dust suction mechanism 1 is inserted into the ground through the ground nails 9. It should be noted that the number of the ground nails 9 can be one, two, three or other numbers according to actual usage requirements, and is not uniquely limited here.

[0047] The ground nails 9 are detachably installed at the bottom of the dust suction mechanism 1, and the ground nails 9 can be inserted into the ground, so that the foundation pit dust reduction equipment for construction municipal engineering provided in this embodiment can be fixed to the ground at a preset installation position, preventing the foundation pit dust reduction equipment for construction municipal engineering in this embodiment from sliding at the construction site and causing safety collision accidents.

[0048] Furthermore, a connecting ring 14 is connected to the bottom of the dust suction mechanism 1. The inner wall of the inner ring of the connecting ring 14 is provided with internal threads, and the outer wall of the ground nail 9 is provided with external threads. The ground nail 9 and the connecting ring 14 are detachably connected through the cooperation of the internal and external threads.

[0049] At the actual construction site, after the foundation pit dust reduction device for building municipal engineering provided in this embodiment is located at the preset installation position, the ground nail 9 is inserted into the connecting ring 14, and the ground nail 9 is rotated relative to the connecting ring 14 so that the ground nail 9 can be inserted into the ground at the preset installation position. This process is convenient to operate.

[0050] Preferably, the number of the ground nails 9 and the connecting rings 14 is set to at least two, and the ground nails 9 and the connecting rings 14 are used in pairs one by one.

[0051] At the actual construction site, after the foundation pit dust reduction device for building municipal engineering provided in this embodiment is located at the preset installation position, a plurality of ground nails 9 are respectively inserted into the connecting rings 14 one by one, and each ground nail 9 is rotated relative to the corresponding connecting ring 14 so that each ground nail 9 can be inserted into the ground at the preset installation position, so that a multi-point connection can be realized between the dust suction mechanism 1 and the ground, and the connection stability is good.

[0052] In one embodiment of the present application, please refer to Figures 1 to 5 , the dust suction mechanism 1 further includes a dust collection box 13. The dust collection box 13 is connected to the outer shell 111 of the filter 11. The cyclone 112 has a dust outlet 1122. The dust collection box 13 is communicated with the dust outlet 1122, and an openable opening 131 is provided on the side wall of the dust collection box 13.

[0053] In the foundation pit dust reduction device for building municipal engineering provided in this embodiment, the dust collection box 13 of the dust suction mechanism 1 can collect a large number of dust particles filtered by the filter 11, extend the interval time for cleaning the dust suction mechanism 1, and the dust particles in the dust collection box 13 can be cleaned through the opening 131 provided on the side wall of the dust collection box 13 to avoid the accumulation of dust particles.

[0054] One or more embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of one or more embodiments of the present application shall be included within the protection scope of the present application.

Claims

1. A foundation pit dust suppression device for building municipal engineering, characterized in that Comprising: A dust suction mechanism (1), the dust suction mechanism (1) comprising a connected filter (11) and a dust suction fan (12); A spray dust suppression mechanism (2), the spray dust suppression mechanism (2) comprising a support rod (21), a plurality of spray heads (22) and a plurality of air outlet pipes (23), a first end of the support rod (21) being connected to the top of the dust suction mechanism (1), the plurality of spray heads (22) and the plurality of air outlet pipes (23) both being connected to a second end of the support rod (21), the plurality of spray heads (22) and the plurality of air outlet pipes (23) being evenly spaced around the axis of the support rod (21), each of the air outlet pipes (23) being provided at each of the spray heads (22) correspondingly, and each of the air outlet pipes (23) being communicated with the dust suction fan (12).

2. The dust reduction device for foundation pits in building municipal engineering according to claim 1, characterized in that Each of the spray heads (22) is hinged to the second end of the support rod (21), and the foundation pit dust suppression device further comprises a sleeve (3) and a plurality of connecting rods (4), the sleeve (3) being adjustably connected to the outer wall of the support rod (21), the adjustment direction of the sleeve (3) being parallel to the axis of the support rod (21), a first end of each of the connecting rods (4) being hinged to the sleeve (3), and a second end of each of the connecting rods (4) being hinged to each of the spray heads (22) correspondingly.

3. The dust reduction device for foundation pits in building municipal engineering according to claim 2, wherein, The support rod (21) is provided with a plurality of groups of first connection holes (211) around its axis, each group of the first connection holes (211) comprising a plurality of the first connection holes (211), and each of the first connection holes (211) in each group of the first connection holes (211) being evenly spaced along the axis direction of the support rod (21), the sleeve (3) being provided with a plurality of second connection holes (31) around the axis of the support rod (21), and each of the second connection holes (31) being plugged with a corresponding one of the first connection holes (211) through a plugging member (5).

4. The foundation pit dust reduction equipment for building municipal engineering according to any one of claims 1-3, characterized in that, The support rod (21) is a hollow rod and both ends of the support rod (21) are through, and each of the air outlet pipes (23) is communicated with the dust suction fan (12) through the hollow support rod (21).

5. The foundation pit dust reduction equipment for building municipal engineering according to any one of claims 1-3, characterized in that, The foundation pit dust suppression device further comprises a corrugated pipe (6) and a telescopic rod (7), the corrugated pipe (6) being connected between the dust suction fan (12) and the support rod (21), each of the air outlet pipes (23) being communicated with the dust suction fan (12) through the corrugated pipe (6), the telescopic rod (7) being telescopically connected between the dust suction mechanism (1) and the corrugated pipe (6), and the adjustment directions of the corrugated pipe (6) and the telescopic rod (7) being both parallel to the axis of the support rod (21).

6. The dust reduction device for foundation pits in building municipal engineering according to any one of claims 1-3, characterized in that, The filter (11) includes a housing (111), a cyclone (112), a cyclone cover (113) and a filter assembly. An air inlet (114) is formed in the side wall of the housing (111). The cyclone (112) is arranged inside the housing (111). The cyclone (112) is cylindrical and has an open mouth (1121). The air inlet (114) communicates with the internal cavity of the cyclone (112). The cyclone cover (113) is covered on one end of the housing (111). The cyclone cover (113) has an installation cavity (1131), a cover body inlet (1132) and a cover body outlet (1133). Both the cover body inlet (1132) and the cover body outlet (1133) communicate with the installation cavity (1131). The cover body inlet (1132) communicates with the internal cavity of the cyclone (112). The cover body outlet (1133) communicates with the dust suction fan (12). The filter assembly is located in the installation cavity (1131).

7. The dust reduction device for foundation pits in building municipal engineering according to claim 6, characterized in that, The cover body inlet (1132) extends towards the cyclone (112) to form a cylindrical extension (1134), and the cylindrical extension (1134) extends into the internal cavity of the cyclone (112). The cylindrical extension (1134) is provided with a plurality of circular through holes (1135).

8. The foundation pit dust reduction equipment for building municipal engineering according to any one of claims 1-3, characterized in that The foundation pit dust reduction device further includes a traveling mechanism (8), and the traveling mechanism (8) is installed at the bottom of the dust suction mechanism (1).

9. The dust reduction device for foundation pits in building municipal engineering according to claim 8, characterized in that, The traveling mechanism (8) includes a base (81) and a plurality of legs (82). The base (81) is installed at the bottom of the dust suction mechanism (1). A plurality of the legs (82) are rotatably installed on the base (81). The leg (82) includes three rolling wheels (821) and a pair of oppositely arranged Y-shaped support plates (822). The three rolling wheels (821) are rotatably installed between the pair of Y-shaped support plates (822), and the three rolling wheels (821) are respectively arranged at the three end points of the Y-shaped support plates (822).

10. The foundation pit dust reduction equipment for building municipal engineering according to any one of claims 1-3, characterized in that, The foundation pit dust reduction device further includes a ground nail (9), and the ground nail (9) is detachably installed at the bottom of the dust suction mechanism (1). The dust suction mechanism (1) is inserted into the ground through the ground nail (9).

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