A dust removal device for deep foundation pit construction

Abstract

The application relates to the technical field of construction dust removal equipment, and particularly discloses a dust removal equipment for deep foundation pit construction, which comprises a mounting arm and further comprises: a dust removal mechanism fixedly installed on the mounting arm; and a stabilizing mechanism fixedly installed in the dust removal mechanism; wherein the dust removal mechanism comprises an outer pipe. The dust removal equipment can intermittently draw dust-containing air in the foundation pit into the inner cavity of the combined pipe through negative pressure and intermittently release the air to the outside through the air outlet groove by the up-down reciprocating movement of the driving disc, so that the air in the foundation pit is replaced, the air quality in the foundation pit during construction is greatly improved, the harm of dust in the air to construction personnel is effectively reduced, and the dust removal equipment is different from the traditional air fan continuous air extraction mode, so that the working noise of the equipment is greatly reduced, and the problem of motor idling waste of a large amount of electric energy during the traditional air fan continuous operation in the dust-free period is avoided.

Description

Technical Field

[0001] This invention relates to the field of construction dust removal equipment technology, specifically a dust removal device for deep foundation pit construction. Background Technology

[0002] Dust removal equipment for deep foundation pit construction refers to professional environmental protection devices used to remove dust generated during deep foundation pit operations in construction projects and improve the air quality of the construction environment.

[0003] In existing deep foundation pit dust removal equipment, the overall equipment using fans is usually large and cannot be adapted to the construction of small foundation pits. In addition, the continuous operation of fans generally causes serious noise pollution and high energy consumption. At the same time, traditional equipment uses a single sealing structure, which is prone to wear and tear under long-term reciprocating motion, resulting in seal failure and affecting the service life of the equipment. Furthermore, the filter components of existing equipment lack an effective self-cleaning mechanism, which is easily clogged by dust accumulation, requiring frequent shutdowns for maintenance, reducing the continuity and efficiency of dust removal operations. Summary of the Invention

[0004] (a) Technical problems to be solved This invention provides a dust removal device for deep foundation pit construction, which solves the problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a dust removal device for deep foundation pit construction, comprising an installation arm and further comprising: a dust removal mechanism fixedly installed on the installation arm; and a stabilizing mechanism fixedly installed inside the dust removal mechanism; wherein the dust removal mechanism comprises an outer tube, the outer surface of the middle part of the outer tube being fixedly sleeved on the middle part of the installation arm, an exhaust hood fixedly connected to the bottom of the outer tube, a combined tube being provided inside the outer tube, the combined tube being arranged along the same central axis as the outer tube, a cover plate fixedly connected to the top of the combined tube, the cover plate being disc-shaped, an air inlet plate fixedly connected to the bottom of the combined tube, the lower edge of the air inlet plate being fixedly connected to the top of the exhaust hood, and an air inlet groove being formed through the upper surface of the air inlet plate.

[0006] According to one embodiment of the present invention, a drive disc is slidably disposed on the inner surface of the combined tube, a drive rod is connected to the drive disc, the drive rod is disposed through the cover plate, a stabilizing rod is fixedly connected to the top of the drive rod, wherein the top of the drive rod is connected to an external hydraulic device, and auxiliary rods are symmetrically slidably connected to both ends of the stabilizing rod, and the bottom of the auxiliary rods is fixedly connected to the upper surfaces of both ends of the mounting arm.

[0007] According to one embodiment of the present invention, the combined tube includes an outer combined tube and an inner combined tube, wherein the cross-sections of the outer combined tube and the inner combined tube are respectively set to L-shape, and an air outlet groove is provided through the bottom of the outer combined tube, wherein the air outlet groove also extends through the inner combined tube, and a cleaning hole is also provided through the bottom of the outer combined tube.

[0008] According to one embodiment of the present invention, a sliding groove is formed through the inner surface of the inner combined tube, and six sliding grooves are arranged at fixed intervals around the central axis of the inner combined tube. A sliding seat is slidably connected to the sliding groove and is fixedly connected to the side surface of the drive disk. An offset tube is slidably connected to the combined cavity of the outer combined tube and the inner combined tube, and an offset groove is formed through the bottom of the offset tube. The sliding seat is magnetic, and the outer end of the sliding seat is slidably inserted into the inner surface of the offset tube.

[0009] According to one embodiment of the present invention, the air intake disc has an internal mounting groove, and an elastic telescopic rod is fixedly connected to the inner surface of the mounting groove. The elastic telescopic rod is arc-shaped, and a connecting rod is fixedly connected to the output end of the elastic telescopic rod. A rotating ring is fixedly connected to the outer end of the connecting rod, and a paddle is fixedly connected to the outer surface of the rotating ring. The paddle is arranged at three fixed intervals around the outer surface of the rotating ring.

[0010] According to one embodiment of the present invention, the upper surface of the air intake plate has a reserved interface, and the bottom surface of the drive plate also has a reserved interface. The interfaces on the air intake plate and the drive plate are connected by a hose. A filling groove is provided inside the drive plate. The filling groove is cylindrical. A pressure plate is slidably connected to the inner surface of the filling groove. The bottom of the drive rod is fixedly connected to the upper surface of the middle part of the pressure plate. A first compression bladder is fixedly connected to the bottom surface of the pressure plate. The internal cavity of the first compression bladder is connected to the internal cavity of the elastic telescopic rod through a hose.

[0011] According to one embodiment of the present invention, the stabilizing mechanism includes a filter ring fixedly connected to the side surface of the cover plate, a driven ring rotatably connected to the top of the outer tube, a mounting base fixedly connected to the inner surface of the driven ring, and bristles mounted on the upper surface of the mounting base, wherein the bristles on the mounting base are disposed in contact with the bottom surface of the filter ring.

[0012] According to one embodiment of the present invention, a driven frame is fixedly connected to the upper surface of the driven ring, the driving rod is configured as a threaded rod, the middle part of the driven frame is threadedly connected to the outer surface of the driving rod, and the upper surface of the driven ring and the upper surface of the cover plate are configured to be on the same horizontal plane.

[0013] According to one embodiment of the present invention, a second compression bladder is fixedly connected to the upper surface of the pressure plate, and an upper sealing ring and a lower sealing ring are fixedly embedded on the side surface of the drive plate, wherein the interior of the upper sealing ring and the lower sealing ring are hollow, and the internal cavity of the second compression bladder is connected to the internal cavity of the upper sealing ring, while the internal cavity of the first compression bladder is connected to the internal cavity of the lower sealing ring.

[0014] When dust removal is required for small foundation pit construction, the entire device can be fixed by securing both ends of the mounting arm. Then, an external hydraulic device causes the drive rod to move intermittently up and down. As the drive rod moves up and down, it drives the drive disc to move up and down. When the drive disc moves down, the magnetic connection between the slide block and the misalignment tube first moves the misalignment tube down, connecting the misalignment groove at the bottom of the misalignment tube with the air outlet groove of the combined tube. Once the misalignment groove and air outlet groove are connected, the misalignment tube reaches its lowest point and cannot move further. At this point, the drive disc begins to overcome the magnetism and continue moving down relative to the combined tube. The initial downward movement of the drive rod also causes the pressure plate to move down, thus compressing the first compression bladder. This causes the first compression bladder to transfer its internal air pressure to the elastic telescopic rod, increasing the internal air pressure of the elastic telescopic rod. This causes the rotating ring, which is fixedly connected to the connecting rod, to rotate, thereby driving the paddle to rotate. The rotation of the paddle seals the air intake slot on the air intake plate. As the subsequent drive plate continues to move downward, it compresses the inner cavity of the combined tube, causing the gas inside the combined tube to release pressure outward through the air outlet slot. When the drive plate reaches the bottom, it continues to move upward under the drive of the external hydraulic equipment. At this time, under the magnetic action of the slide and the misaligned tube, the misaligned tube is driven upward first, thus achieving misalignment and sealing of the misaligned slot and the air outlet slot. Simultaneously, the upward movement of the pressure plate causes the first compression bladder to reset, that is, the reset of the elastic telescopic rod causes the paddle to rotate and reopen the air intake slot on the air intake plate. At this time, the inner cavity of the combined tube is only connected to the outside through the air intake slot, thereby extracting dusty air from the pit as the drive plate continues to move upward.

[0015] (III) Beneficial Effects This invention provides a dust removal device for deep foundation pit construction. It has the following beneficial effects: (I) This dust removal equipment for deep foundation pit construction can intermittently draw dusty air from the foundation pit into the inner cavity of the combined pipe through the reciprocating up and down movement of the drive disc, and intermittently release it to the outside through the air outlet, thereby replacing the air in the foundation pit, greatly improving the air quality in the foundation pit during construction, effectively reducing the harm of dust in the air to construction personnel, and unlike the traditional method of continuously drawing air with a fan, it not only greatly reduces the operating noise of the equipment, but also avoids the problem of the traditional fan running continuously during dust-free periods and wasting a lot of electrical energy.

[0016] (II) This dust removal equipment used in deep foundation pit construction, when the No. 1 extrusion chamber is compressed, will simultaneously transfer its internal air pressure to the lower sealing ring, causing the lower sealing ring to expand and seal the edge gap between the drive disc and the inner combined pipe. When the pressure disc moves upward, it will compress the No. 2 extrusion chamber and release the air pressure of the No. 1 extrusion chamber. That is, the lower sealing ring contracts and the upper sealing ring expands. Through the reciprocating work of the upper and lower sealing rings, unlike the traditional single sealing ring sealing method, the working stability and service life of this equipment are greatly improved, avoiding the problem of frequent maintenance caused by the traditional single sealing ring being damaged too quickly due to long-term friction.

[0017] (III) This dust removal equipment for deep foundation pit construction releases dusty air through the outlet trough into the cavity between the outer pipe and the combined pipe. The air then moves upwards and is released after being filtered by the filter ring. The filter ring effectively filters dust from the air, preventing air pollution. The drive rod is threaded, so its up-and-down movement rotates the driven frame, which in turn rotates the driven ring. The rotation of the mounting base connected to the driven ring uses brush bristles to continuously clean the bottom surface of the filter ring, preventing clogging after prolonged use and significantly extending its working time. This improves the dust removal efficiency of the equipment. The trapped dust is stored at the bottom of the cavity between the outer pipe and the combined pipe for easy collection and cleaning. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the drive rod and its connection structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the outer tube of the present invention; Figure 4 This is a schematic diagram of the air intake disc and its connection structure of the present invention; Figure 5 This is a schematic diagram of the drive disk and its connection structure of the present invention; Figure 6 This is a schematic diagram of the combined pipe structure of the present invention; Figure 7 This is a schematic diagram of the internal structure of the drive disk of the present invention; Figure 8 This is a schematic diagram of the internal structure of the air intake disc of the present invention.

[0019] In the diagram: 1. Mounting arm; 2. Dust removal mechanism; 21. Outer pipe; 22. Exhaust hood; 23. Combined pipe; 24. Cover plate; 25. Air inlet plate; 26. Air inlet slot; 27. Drive plate; 28. Drive rod; 29. ​​Stabilizer rod; 210. Auxiliary rod; 211. Outer combined pipe; 212. Inner combined pipe; 213. Air outlet slot; 214. Cleaning hole; 215. Slide groove; 216. Slide seat; 217. Misalignment 218. Pipe; 219. Misalignment groove; 220. Mounting groove; 221. Elastic telescopic rod; 222. Connecting rod; 223. Rotating ring; 224. Paddle; 225. Filling groove; 226. Pressure plate; 227. No. 1 squeezing bladder; 3. Stabilizing mechanism; 31. Filter ring; 32. Driven ring; 33. Mounting base; 34. Driven frame; 35. No. 2 squeezing bladder; 36. Upper sealing ring; 37. Lower sealing ring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] First embodiment: as follows Figures 1 to 8 As shown, the present invention provides a technical solution: a dust removal device for deep foundation pit construction, including an installation arm 1, and further comprising: Dust removal mechanism 2 is fixedly installed on mounting arm 1; Stabilizing mechanism 3 is fixedly installed inside the dust removal mechanism 2; The dust removal mechanism 2 includes an outer tube 21, the outer surface of which is fixedly sleeved on the middle part of the mounting arm 1. The bottom of the outer tube 21 is fixedly connected to an exhaust hood 22. The inner part of the outer tube 21 is provided with a combined tube 23, which is arranged on the same central axis as the outer tube 21. The top of the combined tube 23 is fixedly connected to a cover plate 24, which is disc-shaped. The bottom of the combined tube 23 is fixedly connected to an air inlet plate 25, the lower edge of which is fixedly connected to the top of the exhaust hood 22. An air inlet groove 26 is provided through the upper surface of the air inlet plate 25.

[0022] A drive disc 27 is slidably mounted on the inner surface of the combined tube 23. A drive rod 28 is connected to the drive disc 27. The drive rod 28 passes through the cover plate 24. A stabilizing rod 29 is fixedly connected to the top of the drive rod 28. The top of the drive rod 28 is connected to an external hydraulic device. Auxiliary rods 210 are symmetrically slidably connected to both ends of the stabilizing rod 29. The bottom of the auxiliary rods 210 is fixedly connected to the upper surfaces of both ends of the mounting arm 1.

[0023] The combined pipe 23 includes an outer combined pipe 211 and an inner combined pipe 212, wherein the cross sections of the outer combined pipe 211 and the inner combined pipe 212 are respectively set to L-shaped. An air outlet groove 213 is provided through the bottom of the outer combined pipe 211, and the air outlet groove 213 also passes through the inner combined pipe 212. A cleaning hole 214 is also provided through the bottom of the outer combined pipe 211.

[0024] The inner surface of the inner combined tube 212 is provided with a sliding groove 215. Six sliding grooves 215 are fixedly spaced around the central axis of the inner combined tube 212. A sliding seat 216 is slidably connected to the inner surface of the sliding groove 215. The sliding seat 216 is fixedly connected to the side surface of the drive disk 27. A misaligned tube 217 is slidably connected to the inner combined tube 211 and the combined cavity of the outer combined tube 211 and the inner combined tube 212. A misaligned groove 218 is provided at the bottom of the misaligned tube 217. The sliding seat 216 is magnetic. The outer end of the sliding seat 216 is slidably inserted into the inner surface of the misaligned tube 217.

[0025] The intake disc 25 has an internal mounting groove 219. An elastic telescopic rod 220 is fixedly connected to the inner surface of the mounting groove 219. The elastic telescopic rod 220 is arc-shaped. A connecting rod 221 is fixedly connected to the output end of the elastic telescopic rod 220. A rotating ring 222 is fixedly connected to the outer end of the connecting rod 221. A paddle 223 is fixedly connected to the outer surface of the rotating ring 222. Three paddles 223 are fixedly spaced around the outer surface of the rotating ring 222.

[0026] An interface is reserved on the upper surface of the intake plate 25, and an interface is also reserved on the bottom surface of the drive plate 27. The interfaces on the intake plate 25 and the drive plate 27 are connected by a hose. A filling groove 224 is provided inside the drive plate 27. The filling groove 224 is cylindrical. A pressure plate 225 is slidably connected to the inner surface of the filling groove 224. The bottom of the drive rod 28 is fixedly connected to the upper surface of the middle part of the pressure plate 225. A first compression bladder 226 is fixedly connected to the bottom surface of the pressure plate 225. The internal cavity of the first compression bladder 226 is connected to the internal cavity of the elastic telescopic rod 220 through a hose.

[0027] Second embodiment: as follows Figures 1 to 8 As shown, the stabilizing mechanism 3 includes a filter ring 31, which is fixedly connected to the side surface of the cover plate 24. A driven ring 32 is rotatably connected to the top of the outer tube 21. A mounting base 33 is fixedly connected to the inner surface of the driven ring 32. Brush bristles are installed on the upper surface of the mounting base 33, and the brush bristles on the mounting base 33 are arranged to fit against the bottom surface of the filter ring 31.

[0028] A driven frame 34 is fixedly connected to the upper surface of the driven ring 32. The drive rod 28 is configured as a threaded rod. The middle part of the driven frame 34 is threadedly connected to the outer surface of the drive rod 28. The upper surface of the driven ring 32 and the upper surface of the cover plate 24 are configured to be on the same horizontal plane.

[0029] The upper surface of the pressure plate 225 is fixedly connected to the second compression bladder 35, and the side surface of the drive plate 27 is fixedly inlaid with the upper sealing ring 36 and the lower sealing ring 37 respectively. The interior of the upper sealing ring 36 and the lower sealing ring 37 is hollow, and the internal cavity of the second compression bladder 35 is connected to the internal cavity of the upper sealing ring 36. At the same time, the internal cavity of the first compression bladder 226 is connected to the internal cavity of the lower sealing ring 37.

[0030] During operation, when dust removal is required for small foundation pit construction, the entire device can be fixed by securing both ends of the mounting arm 1. Then, an external hydraulic device causes the drive rod 28 to move intermittently up and down. As the drive rod 28 moves up and down, it drives the drive disc 27 to move up and down. When the drive disc 27 moves down, it first drives the misalignment tube 217 down through the magnetic connection between the slide block 216 and the misalignment tube 217, causing the misalignment groove 218 at the bottom of the misalignment tube 217 to connect with the air outlet groove 213 of the combined tube 23. Once the misalignment groove 218 and the air outlet groove 213 are connected, the misalignment tube 217 reaches its lowest point and cannot move further. At this point, the drive disc 27 begins to overcome the magnetism and continue to move down relative to the combined tube 23. The initial downward movement of the drive rod 28 initially drives... The pressure plate 225 moves downward, compressing the first compression bladder 226. This causes the first compression bladder 226 to transfer its internal air pressure to the elastic telescopic rod 220, increasing the internal air pressure. This, in turn, pushes the rotating ring 222, which is fixedly connected to the connecting rod 221, to rotate. This, in turn, drives the paddle 223 to rotate, sealing the air inlet slot 26 on the air inlet plate 25. As the subsequent drive plate 27 continues to move downward, it compresses the inner cavity of the combined tube 23, causing the gas inside the combined tube 23 to release pressure outward through the air outlet slot 213. When the drive plate 27 reaches the bottom, it begins to move upward under the drive of an external hydraulic device. At this time, the slide 216 and the misaligned tube 21... Under the magnetic action of 7, the misalignment tube 217 is first moved upward, so that the misalignment groove 218 and the air outlet groove 213 are misaligned and closed. At the same time, the upward movement of the pressure plate 225 drives the first compression bladder 226 to reset. That is, the reset of the elastic telescopic rod 220 drives the paddle 223 to rotate and reopen the air inlet groove 26 on the air inlet plate 25. At this time, the inner cavity of the combined tube 23 is only connected to the outside through the air inlet groove 26. Thus, as the drive plate 27 continues to move upward, the dusty air in the foundation pit is extracted. By moving the drive plate 27 up and down, the dusty air in the foundation pit can be intermittently drawn into the inner cavity of the combined tube 23 through negative pressure and intermittently released to the outside through the air outlet groove 213, completing the replacement of air in the foundation pit and greatly improving the efficiency of the foundation pit during construction. The air quality is improved, effectively reducing the harm of airborne dust to construction workers. Unlike traditional methods that continuously extract air using fans, this significantly reduces equipment noise and avoids the problem of traditional fans wasting energy by idling during dust-free periods. When the first compression chamber 226 is compressed, its internal air pressure is simultaneously transferred to the lower sealing ring 37, causing it to expand and seal the edge gap between the drive disc 27 and the inner combined pipe 212. Furthermore, as the pressure disc 225 moves upward, it compresses the second compression chamber 35 while simultaneously releasing air pressure from the first compression chamber 226. This means the lower sealing ring 37 contracts and the upper sealing ring 36 expands. Through the reciprocating action of the upper and lower sealing rings 36 and 37...Unlike traditional single-seal rubber rings, this design significantly improves the operational stability and lifespan of the equipment. It avoids the problem of rapid damage and frequent maintenance associated with traditional single-seal rubber rings due to prolonged friction. Dust-laden air passing through the exhaust slot 213 moves upwards through the cavity between the outer pipe 21 and the combined pipe 23 for release, filtered by the filter ring 31. The filter ring 31 effectively filters dust from the air, preventing air pollution. Simultaneously, the threaded drive rod 28 rotates, causing the driven frame 34 to rotate, which in turn rotates the driven ring 32. The rotation of the mounting base 33 connected to the driven ring 32 continuously cleans the bottom surface of the filter ring 31 with brush bristles, preventing clogging after prolonged use and significantly extending its working time. This improves the dust removal efficiency of the equipment. The trapped dust is stored at the bottom of the cavity between the outer pipe 21 and the combined pipe 23 for easy collection and cleaning.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for deep foundation pit construction, comprising an installation arm (1), characterized in that: Also includes: Dust removal mechanism (2), which is fixedly installed on the mounting arm (1); Stabilizing mechanism (3), which is fixedly installed inside the dust removal mechanism (2); The dust removal mechanism (2) includes an outer tube (21), the outer surface of the middle part of the outer tube (21) is fixedly sleeved on the middle part of the mounting arm (1), the bottom of the outer tube (21) is fixedly connected to an exhaust hood (22), the inner part of the outer tube (21) is provided with a combined tube (23), the combined tube (23) and the outer tube (21) are arranged on the same central axis, the top of the combined tube (23) is fixedly connected to a cover plate (24), the cover plate (24) is disc-shaped, the bottom of the combined tube (23) is fixedly connected to an air inlet plate (25), the lower edge of the air inlet plate (25) is fixedly connected to the top of the exhaust hood (22), and the upper surface of the air inlet plate (25) is provided with an air inlet groove (26). A drive disc (27) is slidably mounted on the inner surface of the combined tube (23). A drive rod (28) is connected to the drive disc (27). The drive rod (28) passes through the cover plate (24). A stabilizing rod (29) is fixedly connected to the top of the drive rod (28). The top of the drive rod (28) is connected to an external hydraulic device. Auxiliary rods (210) are symmetrically slidably connected to both ends of the stabilizing rod (29). The bottom of the auxiliary rods (210) is fixedly connected to the upper surfaces of both ends of the mounting arm (1). The stabilizing mechanism (3) includes a filter ring (31), which is fixedly connected to the side surface of the cover plate (24). A driven ring (32) is rotatably connected to the top of the outer tube (21). A mounting base (33) is fixedly connected to the inner surface of the driven ring (32). Brush bristles are installed on the upper surface of the mounting base (33), wherein the brush bristles on the mounting base (33) are arranged to fit against the bottom surface of the filter ring (31). The combined pipe (23) includes an outer combined pipe (211) and an inner combined pipe (212), wherein the cross sections of the outer combined pipe (211) and the inner combined pipe (212) are respectively set to L-shaped. An air outlet groove (213) is provided through the bottom of the outer combined pipe (211), wherein the air outlet groove (213) also penetrates the inner combined pipe (212), and a cleaning hole (214) is also provided through the bottom of the outer combined pipe (211). The inner surface of the inner combined tube (212) is provided with a sliding groove (215). The sliding groove (215) is arranged with six fixed intervals around the central axis of the inner combined tube (212). A sliding seat (216) is slidably connected in the sliding groove (215). The sliding seat (216) is fixedly connected to the side surface of the drive disk (27). A misaligned tube (217) is slidably connected in the combined cavity of the outer combined tube (211) and the inner combined tube (212). A misaligned groove (218) is provided at the bottom of the misaligned tube (217). The sliding seat (216) is magnetic. The outer end of the sliding seat (216) is slidably inserted into the inner surface of the misaligned tube (217).

2. The dust removal equipment for deep foundation pit construction according to claim 1, characterized in that: The air intake plate (25) has an internal mounting groove (219). An elastic telescopic rod (220) is fixedly connected to the inner surface of the mounting groove (219). The elastic telescopic rod (220) is arc-shaped. A connecting rod (221) is fixedly connected to the output end of the elastic telescopic rod (220). A rotating ring (222) is fixedly connected to the outer end of the connecting rod (221). A paddle (223) is fixedly connected to the outer surface of the rotating ring (222). Three paddles (223) are fixedly spaced around the outer surface of the rotating ring (222).

3. A dust removal device for deep foundation pit construction according to claim 2, characterized in that: The upper surface of the air intake plate (25) has a reserved interface, and the bottom surface of the drive plate (27) also has a reserved interface. The interfaces on the air intake plate (25) and the drive plate (27) are connected by a hose. The drive plate (27) has a filling groove (224) inside. The filling groove (224) is cylindrical. The inner surface of the filling groove (224) is slidably connected to a pressure plate (225). The bottom of the drive rod (28) is fixedly connected to the upper surface of the middle part of the pressure plate (225). The bottom surface of the pressure plate (225) is fixedly connected to a first compression bladder (226). The internal cavity of the first compression bladder (226) is connected to the internal cavity of the elastic telescopic rod (220) through a hose.

4. A dust removal device for deep foundation pit construction according to claim 3, characterized in that: The driven ring (32) is fixedly connected to the upper surface of the driven frame (34), the driving rod (28) is configured as a threaded rod, the middle part of the driven frame (34) is connected to the outer surface of the driving rod (28) by thread, and the upper surface of the driven ring (32) and the upper surface of the cover plate (24) are configured to be on the same horizontal plane.

5. A dust removal device for deep foundation pit construction according to claim 4, characterized in that: The upper surface of the pressure plate (225) is fixedly connected to the second compression bladder (35), and the side surface of the drive plate (27) is fixedly inlaid with the upper sealing ring (36) and the lower sealing ring (37). The interior of the upper sealing ring (36) and the lower sealing ring (37) is hollow, and the internal cavity of the second compression bladder (35) is connected to the internal cavity of the upper sealing ring (36). At the same time, the internal cavity of the first compression bladder (226) is connected to the internal cavity of the lower sealing ring (37).

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