A foundation pit dust reduction device

Abstract

The present invention relates to the technical field of foundation pit dust reduction, and discloses a foundation pit dust reduction device, which includes a water-driven component. An atomizing nozzle is provided on the outer wall of the water-driven component, and the water-driven component is connected to the atomizing nozzle through a connecting pipe; the water-driven component includes a water pipe connection housing, and an installation housing is fixedly assembled on the outer wall of the water pipe connection housing. An intermittent water outlet mechanism is provided in the inner cavity of the installation housing, and a nozzle swing mechanism is installed at the bottom of the intermittent water outlet mechanism. By driving the rotation of the vertical rod to drive the rotation of the rotating piece, the rotation of the rotating piece drives the movable column and the transverse sleeve to rotate around the vertical center line of the vertical rod. The sliding rod slides in the transverse sleeve, the movable column moves on the rotating piece, and the rotation of the transverse sleeve drives the end of the sliding rod close to the movable column to swing. When the sliding rod swings, it will drive the rotating rod, the swing bracket and the atomizing nozzle to swing, thereby solving the problem that the atomization range of the existing nozzle is relatively limited, and multiple nozzles need to be used, resulting in an increase in dust reduction costs.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation pit dust reduction, and specifically relates to a foundation pit dust reduction device. Background Technique

[0002] A foundation pit is an earth pit excavated at the designed position of the foundation according to the base elevation and the foundation plane size. Before excavation, the excavation plan should be determined based on geological and hydrological data, combined with the situation of nearby buildings on site, and waterproof and drainage work should be done well. For those with shallow excavation, the method of setting a slope can be used to make the soil slope stable, and the slope size is determined according to relevant construction regulations. For those with deeper excavation and adjacent buildings, methods such as foundation pit wall support, shotcrete retaining wall method, and even methods such as diaphragm wall and column - type bored cast - in - place pile interlocking in large foundation pits can be used to prevent the outer layer of soil from collapsing;

[0003] A large amount of dust will be generated during the excavation of the foundation pit. When excavating the foundation pit in the city, this dust will affect the air environment and people's lives. Therefore, dust reduction treatment is required during excavation. The existing dust reduction method is to atomize water through a nozzle, but the spraying range of the nozzle is relatively limited. Therefore, multiple nozzles need to be used, resulting in an increase in dust reduction costs. Summary of the Invention

[0004] The present invention provides a foundation pit dust reduction device, which solves the problems raised in the above - mentioned background technique.

[0005] The present invention provides the following technical solution: A foundation pit dust reduction device includes a water - driven component, an atomizing nozzle is arranged on the outer wall of the water - driven component, and the water - driven component is connected to the atomizing nozzle through a connecting pipe;

[0006] The water - driven component includes a water pipe connection housing, an installation housing is fixedly assembled on the outer wall of the water pipe connection housing, an intermittent water outlet mechanism is arranged in the inner cavity of the installation housing, and a nozzle swing mechanism is installed at the bottom of the intermittent water outlet mechanism;

[0007] The intermittent water outlet mechanism includes a top driving wheel, a top connecting block is fixedly assembled at the bottom of the top driving wheel, a piston moving column is fixedly assembled at the bottom of the top connecting block, an adjusting S - column is fixedly assembled at the bottom of the piston moving column, a central column is fixedly assembled at the bottom of the adjusting S - column, a bottom connecting block is fixedly assembled at the bottom of the central column, a connecting piece is movably sleeved on the outer edge of the central column, a long strip connecting block is fixedly assembled on the outer wall of the connecting piece, a connecting joint is movably connected to one end of the long strip connecting block away from the central column, a piston block is fixedly assembled on the outer wall of the connecting joint, a water outlet nozzle is movably sleeved on the outer wall of the piston block, and the water outlet nozzle is fixedly assembled on the installation housing;

[0008] A bottom driving wheel is fixedly assembled at the bottom of the bottom connecting block, and the connecting pipe is fixedly sleeved on the inner wall of the water outlet nozzle. The connecting pipe is made of a rubber hose;

[0009] A water inlet groove is formed on the outer wall of the piston block. A water outlet hole is formed in the inner cavity of the water inlet groove. The water outlet hole communicates with the water inlet groove, and the water outlet hole is arranged on the side of the water inlet groove away from the connecting joint;

[0010] The center point of the central column is on the same vertical line as the center points of the bottom connecting block and the bottom driving wheel. A vertical rod is assembled at the bottom of the bottom driving wheel;

[0011] The center point of the piston moving column is not on the same vertical line as the center points of the top connecting block and the top driving wheel. The piston moving column is located outside the top connecting block;

[0012] A lifting rod is fixedly assembled at the top of the top driving wheel. A limiting shell is slidably connected to the outer edge of the lifting rod. A support frame is fixedly assembled at the bottom of the limiting shell. The support frame is fixedly assembled above the outer side of the installation shell.

[0013] As a preferred technical solution of the present invention, a horizontal hole is formed in the inner cavity of the limiting shell. A limiting steel ball and a support spring are arranged in the inner cavity of the horizontal hole. The support spring is located in the inner cavity of the horizontal hole and is in contact with the limiting steel ball. A continuous water outlet groove and an intermittent water outlet groove are formed on the outer edge of the lifting rod. The intermittent water outlet groove is located above the continuous water outlet groove.

[0014] As a preferred technical solution of the present invention, sealing rings are slidably connected to the inner wall of the top and the bottom of the installation shell. The lifting rod and the vertical rod are both movably connected to the sealing rings.

[0015] As a preferred technical solution of the present invention, the nozzle swing mechanism includes a rotating piece. The rotating piece is fixedly sleeved on the outer wall of the vertical rod. A movable column is movably sleeved on the inner wall of one end of the rotating piece away from the vertical rod. A transverse sleeve is fixedly assembled at the bottom of the movable column. A sliding rod is slidably sleeved on the inner wall of the transverse sleeve. A vertical sleeve is fixedly assembled at one end of the sliding rod away from the transverse sleeve. A rotating rod is slidably sleeved on the inner wall of the vertical sleeve.

[0016] As a preferred technical solution of the present invention, a swing bracket is fixedly assembled at the top of the rotating rod. A fixed bracket is movably connected to the outer wall of the swing bracket. The fixed bracket is fixedly assembled on the installation shell. The center point of the rotating rod is on the same vertical line as the rotation center points of the swing bracket and the fixed bracket. The atomizing nozzle is fixedly assembled on the swing bracket.

[0017] The present invention has the following beneficial effects:

[0018] 1. The dust suppression device for the foundation pit drives the rotating piece to rotate through the rotation of the vertical rod. The rotation of the rotating piece drives the movable column and the transverse sleeve to rotate around the vertical center line of the vertical rod. The sliding rod slides in the transverse sleeve, and the movable column moves on the rotating piece. The rotation of the transverse sleeve drives the end of the sliding rod close to the movable column to swing. When the sliding rod swings, it will drive the rotating rod, the swinging bracket and the atomizing nozzle to swing, thereby solving the problem that the atomization range of the existing nozzle is relatively limited and the dust suppression cost increases due to the need to use multiple nozzles. The swinging of the atomizing nozzle can also increase the range of atomization dust removal.

[0019] 2. The dust suppression device for the foundation pit, through the settings of the central column, the adjusting S column and the piston moving column, when the connecting piece is located on the central column, the piston block cannot move reciprocally. At this time, water can continuously enter the atomizing nozzle for atomization. When the connecting piece is located on the piston moving column, the piston block moves reciprocally, causing the piston block to intermittently block the water outlet nozzle, so that the atomizing nozzle intermittently enters water for atomization. This device has two atomization methods. Continuous atomization dust suppression can be used when the construction volume is large, and intermittent atomization can be used when the construction volume is small.

[0020] 3. The dust suppression device for the foundation pit, through the setting of the adjusting S column, when the piston moving column, the adjusting S column and the central column move downward, the position of the connecting piece will change, making the vertical center line of the connecting piece coincide with the vertical center line of the piston moving column, making the adjustment structure of the continuous atomization and intermittent atomization of this device simple. Description of the Drawings

[0021] Figure 1 It is a front three-dimensional structure schematic diagram of the present invention;

[0022] Figure 2 It is a bottom three-dimensional structure schematic diagram of the present invention;

[0023] Figure 3 It is an internal structure schematic diagram of the water pipe connection housing of the present invention;

[0024] Figure 4 It is a sectional structure schematic diagram of the present invention;

[0025] Figure 5 It is the present invention Figure 4 The enlarged structure schematic diagram of part A in;

[0026] Figure 6 It is the present invention Figure 4 The enlarged structure schematic diagram of part B in;

[0027] Figure 7 It is the present invention Figure 4 The enlarged structure schematic diagram of part C in;

[0028] Figure 8Schematic diagram of the top drive wheel and bottom drive wheel structures of the present invention;

[0029] Figure 9 Schematic diagram of the piston block and adjusting S-column structures of the present invention;

[0030] Figure 10 Schematic diagram of the spray head swing mechanism of the present invention.

[0031] In the figure: 1. Water drive assembly; 2. Atomizing spray head; 3. Connecting pipe;

[0032] 11. Water pipe connection housing; 12. Installation housing; 13. Intermittent water outlet mechanism; 14. Spray head swing mechanism;

[0033] 1301. Top drive wheel; 1302. Top connecting block; 1303. Piston moving column; 1304. Adjusting S-column; 1305. Central column; 1306. Connecting piece; 1307. Long strip connecting block; 1308. Connecting joint; 1309. Piston block; 1310. Water inlet groove; 1311. Water outlet hole; 1312. Water outlet nozzle; 1313. Bottom connecting block; 1314. Bottom drive wheel; 1315. Vertical rod; 1316. Lifting rod; 1317. Continuous water outlet groove; 1318. Intermittent water outlet groove; 1319. Limiting housing; 1320. Horizontal hole; 1321. Limiting steel ball; 1322. Support spring; 1323. Support frame; 1324. Sealing ring;

[0034] 1401. Rotating piece; 1402. Movable column; 1403. Horizontal sleeve; 1404. Slide bar; 1405. Vertical sleeve; 1406. Rotating rod; 1407. Swing bracket; 1408. Fixed bracket. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figures 1 - 10 , a foundation pit dust suppression device, including a water drive assembly 1, an atomizing spray head 2 is provided on the outer wall of the water drive assembly 1, and the water drive assembly 1 is connected to the atomizing spray head 2 through a connecting pipe 3;

[0037] In the above structure, water enters the water drive assembly 1, and then the water in the water drive assembly 1 enters the atomizing spray head 2 through the connecting pipe 3, and the water is atomized by the atomizing spray head 2.

[0038] The water-driven component 1 includes a water pipe connection housing 11. An installation housing 12 is fixedly assembled on the outer wall of the water pipe connection housing 11. An intermittent water outlet mechanism 13 is arranged in the inner cavity of the installation housing 12, and a nozzle swing mechanism 14 is installed at the bottom of the intermittent water outlet mechanism 13;

[0039] In the above structure, through the setting of the water pipe connection housing 11, both ends of the water pipe connection housing 11 can be connected to water pipes. The installation housing 12 is communicated with the water pipe connection housing 11, and water can enter the installation housing 12. The intermittent water outlet mechanism 13 is installed on the installation housing 12. When the water in the water pipe connection housing 11 flows, it can drive the intermittent water outlet mechanism 13 to operate. When the intermittent water outlet mechanism 13 operates, it can drive the nozzle swing mechanism 14 to move. When the nozzle swing mechanism 14 moves, it can drive the atomizing nozzle 2 to swing. When the atomizing nozzle 2 swings, it can expand the atomization range, making the dust suppression range larger. At the same distance, the usage amount of this nozzle is less than that of the existing nozzles.

[0040] The intermittent water outlet mechanism 13 includes a top driving wheel 1301. A top connecting block 1302 is fixedly assembled at the bottom of the top driving wheel 1301. A piston moving column 1303 is fixedly assembled at the bottom of the top connecting block 1302. An adjusting S column 1304 is fixedly assembled at the bottom of the piston moving column 1303. A central column 1305 is fixedly assembled at the bottom of the adjusting S column 1304. A bottom connecting block 1313 is fixedly assembled at the bottom of the central column 1305. A connecting piece 1306 is movably sleeved on the outer edge of the central column 1305. A long strip connecting block 1307 is fixedly assembled on the outer wall of the connecting piece 1306. One end of the long strip connecting block 1307 away from the central column 1305 is movably connected to a connecting joint 1308. A piston block 1309 is fixedly assembled on the outer wall of the connecting joint 1308. A water outlet nozzle 1312 is movably sleeved on the outer wall of the piston block 1309, and the water outlet nozzle 1312 is fixedly assembled on the installation housing 12;

[0041] In the above structure, the flow of water in the housing 11 connected by a water pipe drives the top drive wheel 1301 and the bottom drive wheel 1314 to rotate, so that when the bottom drive wheel 1314 and the top drive wheel 1301 rotate, they can drive the bottom connecting block 1313, the central column 1305, the adjusting S column 1304, the piston moving column 1303 and the top connecting block 1302 to rotate. When the connecting piece 1306 is located at the central column 1305, at this time, the long connecting block 1307, the connecting joint 1308 and the piston block 1309 are in a static state, and water can enter the atomizing nozzle 2 through the water outlet 1312 and the connecting pipe 3 and be atomized and ejected. When the connecting piece 1306 is located in the piston moving column 1303, the piston moving column 1303 will drive the long connecting block 1307 and the piston block 1309 to move horizontally when rotating, so that the piston block 1309 performs a piston movement at the water outlet 1312. When the piston moving column 1303 moves away from the water outlet 1312, at this time, the piston block 1309 does not block the water outlet 1312, and at this time, water can pass through the water outlet 1312. When the piston moving column 1303 is closest to the water outlet 1312, at this time, the piston block 1309 blocks the water outlet 1312, and at this time, water cannot pass through the water outlet 1312, making the device have the functions of continuous water outlet and intermittent water outlet, and intermittent water outlet can save water.

[0042] The bottom of the bottom connecting block 1313 is fixedly assembled with a bottom drive wheel 1314, and the connecting pipe 3 is fixedly sleeved on the inner wall of the water outlet 1312. The connecting pipe 3 is made of a rubber hose;

[0043] In the above structure, through the settings of the bottom drive wheel 1314 and the top drive wheel 1301, when the atomizing nozzle 2 continuously atomizes, the bottom drive wheel 1314 is located in the lower middle of the water pipe connecting housing 11, so that the water flowing in the water pipe connecting housing 11 can fully drive the bottom drive wheel 1314 to rotate. When the atomizing nozzle 2 atomizes intermittently, the top drive wheel 1301 is located in the upper middle of the water pipe connecting housing 11, so that the water flowing in the water pipe connecting housing 11 can fully drive the top drive wheel 1301 to rotate, enabling the bottom drive wheel 1314 and the top drive wheel 1301 to rotate stably, improving the stability of the device. Utilizing the characteristic that the rubber hose has a soft texture, the atomizing nozzle 2 can swing. The length of the connecting pipe 3 is longer than the length between the atomizing nozzle 2 and the water outlet 1312, so that the connecting pipe 3 will not detach from the atomizing nozzle 2 and the water outlet 1312 when the atomizing nozzle 2 swings, improving the stability of the connecting pipe 3.

[0044] The outer wall of the piston block 1309 is provided with a water inlet groove 1310. The inner cavity of the water inlet groove 1310 is provided with a water outlet hole 1311. The water outlet hole 1311 is communicated with the water inlet groove 1310, and the water outlet hole 1311 is arranged on the side of the water inlet groove 1310 away from the connecting joint 1308;

[0045] In the above structure, through the settings of the water inlet groove 1310 and the water outlet hole 1311, when the head of the piston block 1309 does not block the water outlet nozzle 1312, water can enter the water outlet nozzle 1312 through the water inlet groove 1310 and the water outlet hole 1311 at this time. When the head of the piston block 1309 blocks the water outlet nozzle 1312, water cannot enter the water outlet nozzle 1312 through the water inlet groove 1310 and the water outlet hole 1311.

[0046] The center point of the central column 1305 is on the same vertical line as the center points of the bottom connecting block 1313 and the bottom driving wheel 1314. A vertical rod 1315 is assembled at the bottom of the bottom driving wheel 1314;

[0047] In the above structure, by setting the center point of the central column 1305 on the same vertical line as the center point of the bottom connecting block 1313, the central column 1305 rotates on the same center line as the bottom driving wheel 1314 and the top driving wheel 1301, so that the central column 1305 will not drive the connecting piece 1306, the long connecting block 1307 and the piston block 1309 to move when rotating, enabling the atomizing nozzle 2 to continuously atomize.

[0048] The center point of the piston movement column 1303 is not on the same vertical line as the center points of the top connecting block 1302 and the top driving wheel 1301, and the piston movement column 1303 is located outside the top connecting block 1302;

[0049] In the above structure, by setting the piston movement column 1303 outside the top connecting block 1302, the top connecting block 1302 rotates on the same vertical line as the bottom driving wheel 1314 and the top driving wheel 1301. When the top connecting block 1302 rotates, the piston movement column 1303 rotates around the vertical center line of the top connecting block 1302. At this time, when the piston movement column 1303 rotates, it can drive the piston block 1309 to move in the water outlet nozzle 1312, causing the water outlet nozzle 1312 to intermittently block the water outlet nozzle 1312, enabling the device to perform intermittent atomization.

[0050] A lifting rod 1316 is fixedly assembled at the top of the top driving wheel 1301. The outer edge of the lifting rod 1316 is slidably connected with a limit housing 1319. A support frame 1323 is fixedly assembled at the bottom of the limit housing 1319, and the support frame 1323 is fixedly assembled above the outside of the installation housing 12;

[0051] In the above structure, by moving the lifting rod 1316 downward, the lifting rod 1316 drives the top driving wheel 1301, the top connecting block 1302, the piston moving column 1303, the adjusting S column 1304, the central column 1305, the bottom connecting block 1313, the bottom driving wheel 1314 and the vertical rod 1315 to move downward. At this time, the adjusting S column 1304 slides in the connecting piece 1306, and the adjusting S column 1304 can change the position of the connecting piece 1306, making the vertical center line of the connecting piece 1306 coincide with the vertical center line of the piston moving column 1303, so that the spray head changes from the continuous atomization state to the intermittent atomization state.

[0052] In a preferred embodiment: a horizontal hole 1320 is provided in the inner cavity of the limit housing 1319. A limit steel ball 1321 and a support spring 1322 are provided in the inner cavity of the horizontal hole 1320. The support spring 1322 is located in the inner cavity of the horizontal hole 1320 and is in contact with the limit steel ball 1321. Continuous water outlet grooves 1317 and intermittent water outlet grooves 1318 are provided on the outer edge of the lifting rod 1316, and the intermittent water outlet grooves 1318 are located above the continuous water outlet grooves 1317;

[0053] In the above structure, the limit steel ball 1321 is supported by the support spring 1322, so that the lifting rod 1316 can be positioned. At this time, the lifting rod 1316 cannot move downward and needs to be forced to move downward. When the lifting rod 1316 is in contact with the limit steel ball 1321, it is in the continuous atomization state. When the intermittent water outlet groove 1318 is in contact with the limit steel ball 1321, it is in the intermittent atomization state.

[0054] In a preferred embodiment: sealing rings 1324 are slidably connected to the inner wall of the top and the inner wall of the bottom of the installation housing 12. The lifting rod 1316 and the vertical rod 1315 are both movably connected to the sealing rings 1324;

[0055] In the above structure, through the setting of the sealing ring 1324, the sealing ring 1324 at the top can seal the gap between the lifting rod 1316 and the installation housing 12, and the sealing ring 1324 at the bottom can seal the gap between the vertical rod 1315 and the installation housing 12, so that water will not flow out between the lifting rod 1316 and the installation housing 12 and between the vertical rod 1315 and the installation housing 12.

[0056] In a preferred embodiment: The nozzle swing mechanism 14 includes a rotating plate 1401, the rotating plate 1401 is fixedly sleeved on the outer wall of the vertical rod 1315, the inner wall of the end of the rotating plate 1401 away from the vertical rod 1315 is movably sleeved with a movable column 1402, the bottom of the movable column 1402 is fixedly assembled with a transverse sleeve 1403, the inner wall of the transverse sleeve 1403 is slidably sleeved with a sliding rod 1404, one end of the sliding rod 1404 away from the transverse sleeve 1403 is fixedly assembled with a vertical sleeve 1405, and the inner wall of the vertical sleeve 1405 is slidably sleeved with a rotating rod 1406;

[0057] In the above structure, when the bottom driving wheel 1314 rotates, it drives the vertical rod 1315 to rotate. When the vertical rod 1315 rotates, it drives the rotating plate 1401 to rotate. When the rotating plate 1401 rotates, it drives the movable column 1402 and the transverse sleeve 1403 to rotate around the vertical center line of the vertical rod 1315. At this time, the sliding rod 1404 slides in the transverse sleeve 1403, the movable column 1402 moves on the rotating plate 1401, and when the transverse sleeve 1403 rotates, it drives the end of the sliding rod 1404 close to the movable column 1402 to swing. When the sliding rod 1404 swings, it drives the rotating rod 1406, the swing bracket 1407 and the atomizing nozzle 2 to rotate reciprocally, so that the atomizing nozzle 2 can swing. Through the setting that the vertical sleeve 1405 is slidably connected with the rotating rod 1406, when the vertical rod 1315 moves downward, it drives the rotating plate 1401, the movable column 1402, the transverse sleeve 1403, the sliding rod 1404 and the vertical sleeve 1405 to move downward. The vertical sleeve 1405 slides on the rotating rod 1406, and after the position of the vertical sleeve 1405 changes, it can also drive the rotating rod 1406 to swing.

[0058] In a preferred embodiment: A swing bracket 1407 is fixedly assembled on the top of the rotating rod 1406, the outer wall of the swing bracket 1407 is movably connected with a fixed bracket 1408, the fixed bracket 1408 is fixedly assembled on the installation housing 12, the center point of the rotating rod 1406 is on the same vertical line as the rotation center points of the swing bracket 1407 and the fixed bracket 1408, and the atomizing nozzle 2 is fixedly assembled on the swing bracket 1407;

[0059] In the above structure, through the setting of the fixed bracket 1408, the fixed bracket 1408 plays a role in limiting the swing bracket 1407, so that the swing bracket 1407 rotates on the fixed bracket 1408. The vertical center line of the rotating rod 1406 and the rotation center points of the swing bracket 1407 and the fixed bracket 1408 are on the same vertical line to achieve swinging, which improves the rationality of the device.

[0060] Working principle: When in use, connect the water pipe to the outer wall of the water pipe connection housing 11. Water flows in the water pipe connection housing 11, and the flow of water drives the bottom driving wheel 1314 to rotate. The rotation of the bottom driving wheel 1314 drives the vertical rod 1315 to rotate. When the vertical rod 1315 rotates, it drives the rotating piece 1401 to rotate. The rotation of the rotating piece 1401 drives the movable column 1402 and the transverse sleeve 1403 to rotate around the vertical center line of the vertical rod 1315. At this time, the sliding rod 1404 slides in the transverse sleeve 1403, the movable column 1402 moves on the rotating piece 1401, and the rotation of the transverse sleeve 1403 drives the end of the sliding rod 1404 close to the movable column 1402 to swing. When the sliding rod 1404 swings, it drives the rotating rod 1406, the swinging bracket 1407, and the atomizing nozzle 2, causing the atomizing nozzle 2 to swing. At this time, water reaches the atomizing nozzle 2 through the water outlet nozzle 1312 and the connecting pipe 3 for atomizing and spraying. The swinging of the atomizing nozzle 2 can make the atomizing range larger. When intermittent atomization is required, press the lifting rod 1316 downward so that the intermittent water outlet groove 1318 contacts the limiting steel ball 1321. When the lifting rod 1316 moves downward, it drives the top driving wheel 1301, the top connecting block 1302, the piston moving column 1303, the adjusting S column 1304, the central column 1305, the bottom connecting block 1313, and the bottom driving wheel 1314 to move downward. The adjusting S column 1304 slides in the connecting piece 1306. When the adjusting S column 1304 moves downward, the position of the connecting piece 1306 changes, and the vertical center line of the connecting piece 1306 coincides with the vertical center line of the piston moving column 1303. At this time, the top driving wheel 1301 is located above the middle of the water pipe connection housing 11. When the water in the water pipe connection housing 11 flows, it drives the top driving wheel 1301 to rotate. At this time, the piston moving column 1303 rotates around the vertical center line of the top connecting block 1302. When the piston moving column 1303 is far from the water outlet nozzle 1312, the piston block 1309 does not block the water outlet nozzle 1312, and at this time, water can pass through the water outlet nozzle 1312. When the piston moving column 1303 is closest to the water outlet nozzle 1312, the piston block 1309 blocks the water outlet nozzle 1312, and at this time, water cannot pass through the water outlet nozzle 1312, causing intermittent water intake in the atomizing nozzle 2, greatly saving water resources.

[0061] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0062] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foundation pit dust suppression device, comprising a water drive assembly (1), characterized in that: An atomizing nozzle (2) is provided on the outer wall of the water driving component (1), and the water driving component (1) is connected to the atomizing nozzle (2) through a connecting pipe (3); The water driving component (1) includes a water pipe connecting housing (11), an installation housing (12) is fixedly assembled on the outer wall of the water pipe connecting housing (11), an intermittent water outlet mechanism (13) is provided in the inner cavity of the installation housing (12), and a nozzle swing mechanism (14) is installed at the bottom of the intermittent water outlet mechanism (13); The intermittent water outlet mechanism (13) includes a top driving wheel (1301), a top connecting block (1302) is fixedly assembled at the bottom of the top driving wheel (1301), a piston moving column (1303) is fixedly assembled at the bottom of the top connecting block (1302), an adjusting S column (1304) is fixedly assembled at the bottom of the piston moving column (1303), a central column (1305) is fixedly assembled at the bottom of the adjusting S column (1304), a bottom connecting block (1313) is fixedly assembled at the bottom of the central column (1305), a connecting piece (1306) is movably sleeved on the outer edge of the central column (1305), a long strip connecting block (1307) is fixedly assembled on the outer wall of the connecting piece (1306), a connecting joint (1308) is movably connected to one end of the long strip connecting block (1307) away from the central column (1305), a piston block (1309) is fixedly assembled on the outer wall of the connecting joint (1308), a water outlet nozzle (1312) is movably sleeved on the outer wall of the piston block (1309), and the water outlet nozzle (1312) is fixedly assembled on the installation housing (12); A bottom driving wheel (1314) is fixedly assembled at the bottom of the bottom connecting block (1313), the connecting pipe (3) is fixedly sleeved on the inner wall of the water outlet nozzle (1312), and the connecting pipe (3) is made of a rubber hose; An inlet water groove (1310) is formed on the outer wall of the piston block (1309), a water outlet hole (1311) is formed in the inner cavity of the inlet water groove (1310), the water outlet hole (1311) is communicated with the inlet water groove (1310), and the water outlet hole (1311) is arranged on one side of the inlet water groove (1310) away from the connecting joint (1308); The center point of the central column (1305) is on the same vertical line as the center points of the bottom connecting block (1313) and the bottom driving wheel (1314), and a vertical rod (1315) is assembled at the bottom of the bottom driving wheel (1314); The center point of the piston moving column (1303) is not on the same vertical line as the center points of the top connecting block (1302) and the top driving wheel (1301), and the piston moving column (1303) is located outside the top connecting block (1302); A lifting rod (1316) is fixedly assembled at the top of the top driving wheel (1301). A limiting housing (1319) is slidably connected to the outer edge of the lifting rod (1316). A support frame (1323) is fixedly assembled at the bottom of the limiting housing (1319), and the support frame (1323) is fixedly assembled above the outer side of the installation housing (12).

2. The dust suppression device for foundation pit according to claim 1, characterized in that: A horizontal hole (1320) is formed in the inner cavity of the limiting housing (1319). A limiting steel ball (1321) and a support spring (1322) are arranged in the inner cavity of the horizontal hole (1320). The support spring (1322) is located in the inner cavity of the horizontal hole (1320) and is in contact with the limiting steel ball (1321). A continuous water outlet groove (1317) and an intermittent water outlet groove (1318) are formed in the outer edge of the lifting rod (1316), and the intermittent water outlet groove (1318) is located above the continuous water outlet groove (1317).

3. The dust reduction device for foundation pit according to claim 1, wherein: Sealing rings (1324) are slidably connected to the inner wall of the top and the inner wall of the bottom of the installation housing (12), and the lifting rod (1316) and the vertical rod (1315) are movably connected to the sealing rings (1324).

4. The dust reduction device for foundation pit according to claim 1, wherein: The spray head swing mechanism (14) includes a rotating piece (1401). The rotating piece (1401) is fixedly sleeved on the outer wall of the vertical rod (1315). An active column (1402) is movably sleeved on the inner wall of the end of the rotating piece (1401) far away from the vertical rod (1315). A transverse sleeve (1403) is fixedly assembled at the bottom of the active column (1402). A sliding rod (1404) is slidably sleeved on the inner wall of the transverse sleeve (1403). A vertical sleeve (1405) is fixedly assembled at the end of the sliding rod (1404) far away from the transverse sleeve (1403). A rotating rod (1406) is slidably sleeved on the inner wall of the vertical sleeve (1405).

5. The dust reduction device for foundation pit according to claim 4, characterized in that: A swing bracket (1407) is fixedly assembled at the top of the rotating rod (1406). A fixed bracket (1408) is movably connected to the outer wall of the swing bracket (1407), and the fixed bracket (1408) is fixedly assembled on the installation housing (12). The center point of the rotating rod (1406) and the rotation center points of the swing bracket (1407) and the fixed bracket (1408) are on the same vertical line. The atomizing spray head (2) is fixedly assembled on the swing bracket (1407).

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