A rapid dust reduction device for construction

Abstract

The present invention relates to the technical field of dust suppression equipment, and specifically to a rapid dust suppression equipment for construction. A rapid dust suppression equipment for construction includes a water spray mechanism and a driving mechanism. The water spray mechanism includes a nozzle, and the driving mechanism includes a turbine chamber and a driving assembly, and a first through hole and a second through hole are provided in the turbine chamber. The driving assembly includes a flywheel. The first working state of the driving mechanism is that the retaining ring blocks the second through hole, the flywheel rotates in the opposite direction, and the flywheel drives the nozzle to rotate forward through the transmission mechanism. The second working state of the driving mechanism is that the retaining ring blocks the first through hole, the flywheel rotates forward, and the flywheel drives the nozzle to rotate in the opposite direction through the transmission mechanism. The reciprocating up and down movement of the flywheel drives the nozzle to rotate reciprocatingly to increase the spraying range of the nozzle. The present invention provides a rapid dust suppression equipment for construction to solve the problem that the existing dust suppression equipment cannot meet the requirements of arbitrary angle adjustment, has a limited spraying range, and is not suitable for complex and changeable external construction environments.

Description

Technical Field

[0001] The invention relates to the technical field of dust reduction equipment, and in particular to rapid dust reduction equipment for building construction. Background Art

[0002] Dust suppression devices are equipment used to reduce the concentration of suspended particles and dust in the air. They are widely used in heavy industrial fields such as construction sites, mines, ports, factories, and urban environmental management. Dust suppression devices can quickly humidify or adsorb suspended particles and dust in the air, so that they settle on the ground or are captured by a collector, effectively reducing the content of particles in the air and improving air quality. Dust suppression devices can be adjusted and configured according to different working environments to ensure a wide and uniform spray coverage. They can also choose different spraying methods and angles according to different operating requirements to achieve the best dust reduction effect. Using water as the main treatment medium, no additional chemicals are required, reducing pollution to the environment. At the same time, they can also play a role in cooling and moistening when spraying, which is particularly suitable for hot and dry working environments.

[0003] For example, the Chinese invention patent application with the publication number CN118767577A provides a dust suppression device, which facilitates the support of the spray head spray through the storage device, and can be stretched, so that it is more convenient to fold and store it when not in use. However, the dust suppression device cannot meet the requirements of any angle adjustment, the spray range is limited, and it is not suitable for complex and changeable external construction environments. Summary of the invention

[0004] The invention provides a rapid dust suppression device for building construction, so as to solve the problems that the existing dust suppression device cannot meet the requirements of arbitrary angle adjustment, has a limited spraying range, and is not suitable for complex and changeable external construction environments.

[0005] The invention discloses a rapid dust suppression device for construction, which adopts the following technical scheme: the rapid dust suppression device for construction comprises an inner cylinder, a water spraying mechanism, a transmission mechanism and a driving mechanism, wherein the inner cylinder is vertically arranged. The water spraying mechanism comprises a spray head, which is rotatably arranged in the inner cylinder and is located at the upper part of the inner cylinder, and the spray head and the inner cylinder are coaxially arranged.

[0006] The driving mechanism includes a turbine chamber and a driving assembly. The turbine chamber is fixedly arranged in the inner cylinder, and the turbine chamber is below the nozzle. Two through-hole assemblies are provided in the turbine chamber, and the two through-hole assemblies are distributed in sequence along the up-down direction. The through-hole assembly at the top includes two first through-holes, and the two first through-holes are distributed along the circumference of the turbine chamber. The through-hole assembly at the bottom includes two second through-holes, and the two second through-holes are distributed along the circumference of the turbine chamber. A retaining ring is provided in the turbine chamber, and the retaining ring and the inner cylinder are coaxially arranged, and the retaining ring can slide up and down, and the retaining ring is used to block the first through-hole or the second through-hole.

[0007] The driving assembly includes a variable pitch screw rod, a flywheel and a first elastic member. The variable pitch screw rod is arranged in an inner tube, and the variable pitch screw rod and the inner tube are arranged coaxially. The flywheel is in a turbine chamber, and a first connecting pipe is fixedly arranged on the flywheel. The first connecting pipe and the inner tube are arranged coaxially. The first connecting pipe is rotatably sleeved on the variable pitch screw rod, and the first connecting pipe and the variable pitch screw rod are spirally driven. The first connecting pipe moves upward when it rotates in the forward direction. The first elastic member connects the flywheel and the retaining ring.

[0008] The driving mechanism has a first working state and a second working state. In the first working state of the driving mechanism, the retaining ring blocks the second through hole, the flywheel rotates in the reverse direction, and the flywheel drives the nozzle to rotate in the forward direction through the transmission mechanism. In the second working state of the driving mechanism, the retaining ring blocks the first through hole, the flywheel rotates in the forward direction, and the flywheel drives the nozzle to rotate in the reverse direction through the transmission mechanism.

[0009] Furthermore, a spiral groove is provided on the peripheral wall of the variable pitch spiral rod, and a protrusion is provided in the first connecting tube, and the protrusion is slidably provided in the spiral groove. The flywheel includes a swivel and a plurality of blades. The plurality of blades are fixedly provided at the lower end of the first connecting tube, and the plurality of blades are distributed along the circumference of the first connecting tube. The swivel is provided outside the plurality of blades, and the swivel can rotate relative to the blades and can move up and down synchronously with the blades. The first elastic member connects the retaining ring and the swivel.

[0010] Furthermore, the pitch of the spiral groove on the variable pitch spiral rod gradually decreases from bottom to top.

[0011] Furthermore, a partition is fixedly arranged in the inner cylinder, and a plurality of third through holes are opened on the partition. The partition is between the nozzle and the turbine chamber. The transmission mechanism is located above the partition, and the transmission mechanism includes a friction ring, a friction wheel, a planetary carrier and a plurality of planetary friction columns. The friction ring is fixedly connected to the lower side of the nozzle, and the friction ring and the inner cylinder are coaxially arranged.

[0012] A plurality of planetary friction columns are located in the friction ring, and the plurality of planetary friction columns are distributed along the circumference of the friction ring, and the planetary friction columns are arranged vertically. The lower end of the planetary friction column is arranged on the partition, and the planetary friction column can rotate around its own axis. The planetary carrier is arranged above the planetary friction column, and the plurality of planetary friction columns and the planetary carrier are rotatably connected. The plurality of planetary friction columns and the friction ring are in friction contact. The friction wheel is fixedly arranged on the first connecting tube, and the friction wheel and the first connecting tube are arranged coaxially. The friction wheel is located between the plurality of planetary friction columns, and the planetary friction columns and the friction wheel are in friction contact.

[0013] Furthermore, a second connecting tube is fixedly arranged on the upper side of the planetary frame, and the second connecting tube is coaxially arranged with the inner tube. A threaded column is arranged in the second connecting tube, and the threaded column is vertically arranged, and the threaded column and the second connecting tube are threadedly matched. The upper part of the variable pitch screw rod is in the second connecting tube, and the upper end of the variable pitch screw rod is fixedly connected to the threaded column.

[0014] Furthermore, the first through hole and the second through hole are both arranged at an inclination, and when the driving mechanism is in the first working state, the inner side of the first through hole is located at the front side of the flywheel's reverse rotation, and the outer side of the first through hole is located at the rear side of the flywheel's reverse rotation. The inner side of the second through hole is located at the rear side of the flywheel's reverse rotation, and the outer side of the first through hole is located at the front side of the flywheel's reverse rotation.

[0015] Furthermore, a rapid dust reduction device for construction also includes a filter screen and a support cylinder, the filter screen and the support cylinder are both arranged in the inner cylinder, and the turbine chamber, the support cylinder and the filter screen are distributed in sequence from top to bottom.

[0016] Furthermore, two first retaining rings are arranged on the inner peripheral wall of the inner cylinder, and the first retaining rings and the inner cylinder are arranged coaxially. The two first retaining rings are arranged in sequence along the up and down directions, and the upper end and the lower end of the friction ring are respectively against the two first retaining rings.

[0017] Furthermore, a rapid dust reduction device for construction also includes a bracket and an outer cylinder, wherein the outer cylinder is fixedly arranged on the bracket. The outer cylinder is arranged vertically, and a water inlet is provided at the lower side of the outer cylinder. The inner cylinder and the outer cylinder are arranged coaxially, and the inner cylinder can be slid up and down in the outer cylinder. An end cap is arranged at the upper end of the outer cylinder, and the upper end surface of the nozzle is fixedly connected to the end cap.

[0018] Furthermore, a second retaining ring is fixedly arranged on the peripheral wall of the lower end of the inner cylinder, and the second retaining ring and the inner cylinder are arranged coaxially. A second elastic member is arranged on the outer side of the inner cylinder, and the second elastic member is arranged vertically, and the upper end of the second elastic member is fixedly connected to the outer cylinder, and the lower end of the second elastic member is fixedly connected to the second retaining ring.

[0019] The beneficial effects of the present invention are as follows: the rapid dust reduction equipment for construction of the present invention is first in the first working state through the drive mechanism, the retaining ring is in the lower part of the turbine chamber, the flywheel rotates in the opposite direction, and the flywheel drives the nozzle to rotate forward through the transmission mechanism. The flywheel drives the first connecting pipe to rotate in the opposite direction and moves downward, and the first elastic member is compressed when the flywheel moves downward, and after the first elastic member is compressed to the shortest length, when the flywheel continues to move downward, the first elastic member is reset, and the retaining ring is driven to move upward. At this time, the drive mechanism is in the second working state, the flywheel rotates in the positive direction, and the flywheel drives the nozzle to rotate in the opposite direction through the transmission mechanism, and the first connecting pipe rotates in the positive direction and moves upward, and the first elastic member is compressed when the flywheel moves upward, and after the first elastic member is compressed to the shortest length, when the flywheel continues to move upward, the first elastic member is reset, and the retaining ring is driven to move downward, and the drive mechanism is in the first working state again. The reciprocating up and down movement of the flywheel drives the nozzle to rotate reciprocatingly.

[0020] By changing the pitch of the thread groove on the variable pitch spiral rod, the number of revolutions of the flywheel when it moves up and down in the turbine chamber is changed, and then the rotation angle of the nozzle is changed, thereby changing the spraying range of the nozzle. The rapid dust reduction equipment for construction of the present invention has a simple structure, can adjust the reciprocating spraying range at any angle, can adapt to a variety of working environments, and has stronger adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A schematic diagram of the structure of a rapid dust reduction device for construction provided by an embodiment of the present invention;

[0023] Figure 2 An exploded diagram of a rapid dust reduction device for construction provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of a rapid dust reduction device for construction provided by an embodiment of the present invention when the driving mechanism is in a first working state;

[0025] Figure 4 for Figure 3 Sectional view at AA in the middle;

[0026] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0027] Figure 6 A front view of a rapid dust reduction device for construction provided by an embodiment of the present invention;

[0028] Figure 7 for Figure 6 Sectional view at CC;

[0029] Figure 8 A schematic diagram of a rapid dust reduction device for construction provided by an embodiment of the present invention when the driving mechanism is in a second working state;

[0030] Fig. 9 for Figure 8 The enlarged view of point D in the middle;

[0031] Fig.10 A schematic diagram of the structure of a driving mechanism of a rapid dust reduction device for construction provided by an embodiment of the present invention;

[0032] Fig.11 A schematic structural diagram of a turbine chamber of a rapid dust reduction device for construction provided in an embodiment of the present invention.

[0033] In the figure: 100, bracket; 201, end cover; 202, outer cylinder; 2021, water inlet; 204, second elastic member; 301, nozzle; 302, variable pitch spiral rod; 303, inner cylinder; 3031, partition; 3032, second retaining ring; 3033, first retaining ring; 304, threaded column; 305, friction ring; 306, planetary friction column; 307, filter screen; 308, support cylinder; 309, turbine chamber; 3091, first through hole; 3092, second through hole; 310, flywheel; 3101, swivel; 311, retaining ring; 312, friction wheel; 313, first elastic member; 320, first connecting pipe; 321, bump; 330, second connecting pipe. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Reference Figures 1 to 11 As shown, a rapid dust suppression device for construction provided by an embodiment of the present invention includes an inner cylinder 303, a water spraying mechanism, a transmission mechanism and a driving mechanism, and the inner cylinder 303 is vertically arranged. The water spraying mechanism includes a spray head 301, which is rotatably arranged in the inner cylinder 303 and is located at the upper part of the inner cylinder 303, and the spray head 301 and the inner cylinder 303 are coaxially arranged.

[0036] The driving mechanism includes a turbine chamber 309 and a driving assembly. The turbine chamber 309 is fixedly arranged in the inner cylinder 303, and the turbine chamber 309 is below the nozzle 301. Two through-hole assemblies are provided in the turbine chamber 309, and the two through-hole assemblies are distributed in sequence along the up and down directions. The through-hole assembly at the top includes two first through-holes 3091, and the two first through-holes 3091 are distributed along the circumference of the turbine chamber 309. The through-hole assembly at the bottom includes two second through-holes 3092, and the two second through-holes 3092 are distributed along the circumference of the turbine chamber 309. A retaining ring 311 is provided in the turbine chamber 309, and the retaining ring 311 is coaxially arranged with the inner cylinder 303, and the retaining ring 311 can slide up and down, and the retaining ring 311 is used to block the first through-hole 3091 or the second through-hole 3092.

[0037] The driving assembly includes a variable pitch screw rod 302, a flywheel 310 and a first elastic member 313. The variable pitch screw rod 302 is arranged in the inner cylinder 303, and the variable pitch screw rod 302 and the inner cylinder 303 are arranged coaxially. The flywheel 310 is in the turbine chamber 309. A first connecting pipe 320 is fixedly arranged on the flywheel 310. The first connecting pipe 320 and the inner cylinder 303 are arranged coaxially. The first connecting pipe 320 is rotatably sleeved on the variable pitch screw rod 302. A spiral groove is provided on the peripheral wall of the variable pitch screw rod 302. The first connecting pipe 320 and the variable pitch screw rod 302 are spirally driven. The first connecting pipe 320 moves upward when the first connecting pipe 320 rotates in the forward direction. The first elastic member 313 connects the flywheel 310 and the retaining ring 311.

[0038] The driving mechanism has a first working state and a second working state. The first working state of the driving mechanism is that the flywheel 310 is located at the upper part of the turbine chamber 309, the retaining ring 311 blocks the second through hole 3092, the water flows into the turbine chamber 309 from the first through hole 3091, the flywheel 310 rotates in the reverse direction, and the flywheel 310 drives the nozzle 301 to rotate forward through the transmission mechanism. The second working state of the driving mechanism is that the flywheel 310 is located at the lower part of the turbine chamber 309, the retaining ring 311 blocks the first through hole 3091, the water flows into the turbine chamber 309 from the second through hole 3092, the flywheel 310 rotates in the forward direction, and the flywheel 310 drives the nozzle 301 to rotate reversely through the transmission mechanism.

[0039] In the initial state, the driving mechanism is in the first working state, the retaining ring 311 is at the lower part of the turbine chamber 309, and the flywheel 310 is at the upper part of the turbine chamber 309. The first elastic member 313 is in a naturally extended state, and the end of the first elastic member 313 connected to the retaining ring 311 is lower than the end of the first elastic member 313 connected to the flywheel 310. The retaining ring 311 blocks the second through hole 3092. Water flows into the turbine chamber 309 from the first through hole 3091, the flywheel 310 rotates in the reverse direction, and the flywheel 310 drives the nozzle 301 to rotate in the forward direction through the transmission mechanism.

[0040] The flywheel 310 drives the first connecting pipe 320 to move downward when rotating in the opposite direction, and the first elastic member 313 is gradually compressed. When the first elastic member 313 is arranged horizontally, the first elastic member 313 is compressed to the shortest length. Then the flywheel 310 continues to move downward, so that the end of the first elastic member 313 connected to the retaining ring 311 is higher than the end of the first elastic member 313 connected to the flywheel 310. At this time, the first elastic member 313 is reset and extended, and pushes the retaining ring 311 to move upward quickly. The retaining ring 311 blocks the first through hole 3091, and the second through hole 3092 is opened, and the water flows into the turbine chamber 309 from the second through hole 3092.

[0041] At this time, the driving mechanism is in the second working state, the flywheel 310 rotates forward, and the flywheel 310 drives the nozzle 301 to rotate in the opposite direction through the transmission mechanism. The first connecting pipe 320 moves upward when rotating forward, and the first connecting pipe 320 drives the flywheel 310 to move upward synchronously, and the first elastic member 313 is compressed again. When the first elastic member 313 is compressed to the shortest length, the flywheel 310 continues to move upward, so that the end of the first elastic member 313 and the retaining ring 311 connected is lower than the end of the first elastic member 313 and the flywheel 310 connected. At this time, the first elastic member 313 resets and stretches, and pushes the retaining ring 311 to move downward quickly, and the retaining ring 311 blocks the second through hole 3092, and the first through hole 3091 is opened. The reciprocating up and down movement of the flywheel 310 drives the nozzle 301 to rotate reciprocatingly.

[0042] By changing the pitch of the thread groove on the variable pitch screw rod 302, the number of revolutions of the flywheel 310 when it moves up and down in the turbine chamber 309 is changed, thereby changing the rotation angle of the nozzle 301, thereby changing the spraying range of the nozzle 301. A rapid dust reduction equipment for construction has a simple structure, can adjust the reciprocating spraying range at any angle, can adapt to a variety of working environments, and has stronger adaptability.

[0043] In this embodiment, the variable pitch screw rod 302 is located above the turbine chamber 309, and a protrusion 321 is provided in the first connecting tube 320, and the protrusion 321 is slidably provided in the spiral groove. The flywheel 310 includes a rotating ring 3101 and a plurality of blades. The plurality of blades are fixedly provided at the lower end of the first connecting tube 320, and the plurality of blades are distributed along the circumference of the first connecting tube 320. The rotating ring 3101 is provided outside the plurality of blades, and the rotating ring 3101 can rotate relative to the blades and can move up and down synchronously with the blades. There are a plurality of first elastic members 313, and the plurality of first elastic members 313 are distributed along the circumference of the inner cylinder 303, and the two ends of the first elastic member 313 are respectively a first end and a second end, and the first end of the first elastic member 313 is fixedly connected to the retaining ring 311, and the second end of the first elastic member 313 is fixedly connected to the rotating ring 3101. When the driving mechanism is in the first working state, the first end of the first elastic member 313 is lower than the second end of the first elastic member 313. When the driving mechanism is in the second working state, the first end of the first elastic member 313 is higher than the second end of the first elastic member 313 .

[0044] In this embodiment, the pitch of the spiral groove on the variable pitch screw rod 302 gradually decreases from bottom to top. When the spraying range of the nozzle 301 needs to be increased, the threaded column 304 is moved downward to change the initial engagement position of the protrusion 321 and the spiral groove. Since the pitch of the thread on the variable pitch screw rod 302 gradually decreases from bottom to top. The closer the initial engagement position of the protrusion 321 and the spiral groove is to the upper end surface of the variable pitch screw rod 302, the more revolutions the flywheel 310 rotates when the flywheel 310 moves once in the vertical direction, thereby making the rotation angle of the nozzle 301 larger.

[0045] In this embodiment, a partition 3031 is fixedly arranged in the inner cylinder 303, and a plurality of third through holes are opened on the partition 3031. The partition 3031 is located between the nozzle 301 and the turbine chamber 309. The transmission mechanism is located above the partition 3031, and the transmission mechanism includes a friction ring 305, a friction wheel 312, a planetary carrier, and a plurality of planetary friction columns 306. The friction ring 305 is fixedly connected to the lower side of the nozzle 301, and the friction ring 305 and the inner cylinder 303 are coaxially arranged.

[0046] A plurality of planetary friction columns 306 are disposed in the friction ring 305, and the plurality of planetary friction columns 306 are distributed along the circumference of the friction ring 305, and the planetary friction columns 306 are disposed vertically. The lower end of the planetary friction column 306 is disposed on the partition plate 3031, and the planetary friction column 306 can rotate around its own axis. The planet carrier is disposed above the planetary friction column 306, and the plurality of planetary friction columns 306 are rotatably connected to the planet carrier. The plurality of planetary friction columns 306 are in friction contact with the friction ring 305.

[0047] The friction wheel 312 is fixedly disposed on the first connecting tube 320 , and the friction wheel 312 and the first connecting tube 320 are coaxially disposed. The friction wheel 312 is located between the plurality of planetary friction columns 306 , and the planetary friction columns 306 and the friction wheel 312 are in friction contact.

[0048] When the first connecting pipe 320 rotates in the reverse direction, it drives the friction wheel 312 to rotate in the reverse direction synchronously, and the friction wheel 312 drives the planetary friction column 306 to rotate forwardly, and then the planetary friction column 306 drives the friction ring 305 to rotate forwardly, and the friction ring 305 drives the nozzle 301 to rotate forwardly synchronously. The transmission mechanism is used for deceleration.

[0049] In this embodiment, a second connecting tube 330 is fixedly provided on the upper side of the planet carrier, and the second connecting tube 330 and the inner tube 303 are coaxially provided. A threaded column 304 is provided in the second connecting tube 330, and the threaded column 304 is vertically provided, and the threaded column 304 and the second connecting tube 330 are threadedly matched. The upper part of the variable pitch screw rod 302 is in the second connecting tube 330, and the upper end of the variable pitch screw rod 302 is fixedly connected to the threaded column 304. The threaded column 304 is rotated to move downward, and the threaded column 304 drives the variable pitch screw rod 302 to move downward synchronously.

[0050] In this embodiment, the first through hole 3091 and the second through hole 3092 are both inclined, and when the driving mechanism is in the first working state, the inner side of the first through hole 3091 is located at the front side of the flywheel 310 rotating in the opposite direction, and the outer side of the first through hole 3091 is located at the rear side of the flywheel 310 rotating in the opposite direction. The inner side of the second through hole 3092 is located at the rear side of the flywheel 310 rotating in the opposite direction, and the outer side of the first through hole 3091 is located at the front side of the flywheel 310 rotating in the opposite direction.

[0051] When the driving mechanism is in the second working state, the inner side of the first through hole 3091 is located at the rear side of the forward rotation of the flywheel 310, and the outer side of the first through hole 3091 is located at the front side of the forward rotation of the flywheel 310. The inner side of the second through hole 3092 is located at the front side of the forward rotation of the flywheel 310, and the outer side of the first through hole 3091 is located at the rear side of the forward rotation of the flywheel 310.

[0052] In this embodiment, a rapid dust reduction device for construction also includes a filter 307 and a support cylinder 308, both of which are arranged in the inner cylinder 303, and the turbine chamber 309, the support cylinder 308 and the filter 307 are sequentially distributed from top to bottom. The upper end of the support cylinder 308 abuts against the turbine chamber 309, and the lower end of the support cylinder 308 abuts against the upper end of the filter 307. The filter 307 is used to filter impurities in water.

[0053] In this embodiment, two first retaining rings 3033 are arranged on the inner circumferential wall of the inner cylinder 303, and the first retaining ring 3033 and the inner cylinder 303 are arranged coaxially. The two first retaining rings 3033 are arranged in sequence along the up-down direction, and the upper end and the lower end of the friction ring 305 are respectively against the two first retaining rings 3033. The two first retaining rings 3033 are used to limit the friction ring 305.

[0054] In this embodiment, a rapid dust reduction device for construction also includes a bracket 100 and an outer cylinder 202, and the outer cylinder 202 is fixedly arranged on the bracket 100. The outer cylinder 202 is arranged vertically, and a water inlet 2021 is opened on the lower side of the outer cylinder 202. The inner cylinder 303 and the outer cylinder 202 are coaxially arranged, and the inner cylinder 303 can be slid up and down in the outer cylinder 202. The upper end of the outer cylinder 202 is provided with an end cover 201, and the upper end surface of the nozzle 301 is fixedly connected to the end cover 201. The lower end of the filter 307 is against the bottom of the outer cylinder 202.

[0055] In this embodiment, a second baffle ring 3032 is fixedly arranged on the peripheral wall of the lower end of the inner cylinder 303, and the second baffle ring 3032 and the inner cylinder 303 are arranged coaxially. A second elastic member 204 is arranged on the outer side of the inner cylinder 303, and the second elastic member 204 is arranged vertically. The upper end of the second elastic member 204 is fixedly connected to the outer cylinder 202, and the lower end of the second elastic member 204 is fixedly connected to the second baffle ring 3032. Liquid enters the outer cylinder 202 from the water inlet 2021 on the lower side of the outer cylinder 202, and the water flow pushes the second baffle ring 3032, so that the inner cylinder 303 moves upward, and the second elastic member 204 is compressed at this time. The inner cylinder 303 drives the water spraying mechanism, the transmission mechanism and the driving mechanism to move upward synchronously.

[0056] Working process: In the initial state, the second elastic member 204 and the first elastic member 313 are both in a naturally extended state, and the inner cylinder 303 is inside the outer cylinder 202. The driving mechanism is in the first working state, the retaining ring 311 is at the lower part of the turbine chamber 309, and the retaining ring 311 blocks the second through hole 3092.

[0057] When working, liquid enters the outer cylinder 202 from the water inlet 2021 at the lower side of the outer cylinder 202, and the water flow pushes the second baffle ring 3032, so that the inner cylinder 303 moves upward, and the second elastic member 204 is compressed. The inner cylinder 303 drives the water spraying mechanism, the transmission mechanism and the driving mechanism to move upward synchronously. The nozzle 301 is outside the outer cylinder 202.

[0058] The liquid flows into the inner cylinder 303, and first passes through the filter 307, which filters the impurities. Then the liquid enters the turbine chamber 309 through the first through hole 3091. Since the first through hole 3091 is tilted, the water flow entering the turbine chamber 309 through the first through hole 3091 rotates in the opposite direction, and the water flow drives the flywheel 310 to rotate in the opposite direction synchronously, and the flywheel 310 drives the first connecting pipe 320 and the friction wheel 312 to rotate in the opposite direction synchronously. The friction wheel 312 drives the planetary friction column 306 to rotate forward, and then the planetary friction column 306 drives the friction ring 305 to rotate forward, and the friction ring 305 drives the nozzle 301 to rotate forward synchronously.

[0059] Since the protrusion 321 is slidably arranged in the spiral groove, the first connecting tube 320 moves downward when it rotates in the opposite direction, the first connecting tube 320 drives the flywheel 310 to move downward, and the flywheel 310 drives the rotating ring 3101 to move downward synchronously, the first elastic member 313 is gradually compressed, and the second end of the first elastic member 313 gradually moves downward and gradually approaches the first end of the first elastic member 313.

[0060] When the first elastic member 313 is arranged horizontally, the first elastic member 313 is compressed to the shortest length. Then the flywheel 310 continues to move downward, so that the second end of the first elastic member 313 is lower than the first end of the first elastic member 313. At this time, the first elastic member 313 is reset and extended, and pushes the retaining ring 311 to move upward rapidly. The retaining ring 311 blocks the first through hole 3091, and the second through hole 3092 is opened, and the water flows into the turbine chamber 309 from the second through hole 3092. When the flywheel 310 moves downward, the retaining ring 311 is driven by the swivel 3101 and the first elastic member 313 to move from the second through hole 3092 to the first through hole 3091, and the flywheel 310 rotates in the opposite direction by the first preset angle, and the nozzle 301 rotates forward by the first preset angle synchronously.

[0061] Since the second through hole 3092 is tilted, the water flow entering the turbine chamber 309 through the second through hole 3092 rotates in the forward direction, and the water flow drives the flywheel 310 to rotate forward synchronously, and the flywheel 310 drives the first connecting pipe 320 and the friction wheel 312 to rotate forward synchronously, and drives the friction ring 305 and the nozzle 301 to rotate in the opposite direction synchronously through the planetary friction column 306. At this time, the driving mechanism is in the second working state.

[0062] When the first connecting tube 320 rotates forward, it moves upward, and the first connecting tube 320 drives the flywheel 310 to move upward synchronously, and the second end of the first elastic member 313 gradually moves upward, and the second end of the first elastic member 313 gradually approaches the first end of the first elastic member 313. When the first elastic member 313 is compressed to the shortest length, the flywheel 310 continues to move upward, so that the second end of the first elastic member 313 is higher than the first end of the first elastic member 313. At this time, the first elastic member 313 is reset and extended, and pushes the retaining ring 311 to move downward rapidly, and the retaining ring 311 blocks the second through hole 3092, and the first through hole 3091 is opened. When the flywheel 310 moves upward, the retaining ring 311 is driven by the rotating ring 3101 and the first elastic member 313 to move from the first through hole 3091 to the second through hole 3092, and the flywheel 310 rotates forward by a first preset angle, and causes the nozzle 301 to rotate in the opposite direction by a first preset angle synchronously. The reciprocating up and down movement of the flywheel 310 drives the spray head 301 to rotate reciprocatingly.

[0063] When it is necessary to increase the spraying range of the nozzle 301, that is, when it is necessary to increase the rotation angle of the nozzle 301, the threaded column 304 is rotated to move the threaded column 304 downward, and the threaded column 304 drives the variable pitch screw rod 302 to move downward synchronously to change the initial engagement position of the protrusion 321 and the spiral groove. Since the pitch of the thread on the variable pitch screw rod 302 gradually decreases from bottom to top. The closer the initial engagement position of the protrusion 321 and the spiral groove is to the upper end surface of the variable pitch screw rod 302, the more turns the flywheel 310 makes when the flywheel 310 moves once in the vertical direction, and thus the larger the rotation angle of the nozzle 301. A rapid dust reduction device for construction has a simple structure and can adjust the reciprocating spray range at any angle.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rapid dust reduction device for construction, characterized in that: It includes an inner cylinder, a water spraying mechanism, a transmission mechanism and a driving mechanism, wherein the inner cylinder is vertically arranged; the water spraying mechanism includes a spray head, which is rotatably arranged in the inner cylinder and located at the upper part of the inner cylinder, and the spray head and the inner cylinder are coaxially arranged; The driving mechanism includes a turbine chamber and a driving assembly; the turbine chamber is fixedly arranged in the inner cylinder, and the turbine chamber is below the nozzle; two through-hole assemblies are provided in the turbine chamber, and the two through-hole assemblies are sequentially distributed along the up-down direction; the through-hole assembly at the top includes two first through-holes, and the two first through-holes are distributed along the circumference of the turbine chamber; the through-hole assembly at the bottom includes two second through-holes, and the two second through-holes are distributed along the circumference of the turbine chamber; a retaining ring is provided in the turbine chamber, and the retaining ring and the inner cylinder are coaxially arranged, and the retaining ring can slide up and down, and the retaining ring is used to block the first through-hole or the second through-hole; The driving assembly includes a variable pitch screw rod, a flywheel and a first elastic member. The variable pitch screw rod is arranged in an inner cylinder, and the variable pitch screw rod and the inner cylinder are arranged coaxially. The flywheel is in a turbine chamber, and a first connecting pipe is fixedly arranged on the flywheel. The first connecting pipe and the inner cylinder are arranged coaxially. The first connecting pipe is rotatably sleeved on the variable pitch screw rod, and the first connecting pipe and the variable pitch screw rod are spirally driven. The first connecting pipe moves upward when it rotates in the forward direction. The first elastic member connects the flywheel and the retaining ring. The driving mechanism has a first working state and a second working state. The first working state of the driving mechanism is that the retaining ring blocks the second through hole, the flywheel rotates in the reverse direction, and the flywheel drives the nozzle to rotate forward through the transmission mechanism; the second working state of the driving mechanism is that the retaining ring blocks the first through hole, the flywheel rotates forward, and the flywheel drives the nozzle to rotate reversely through the transmission mechanism.

2. The rapid dust reduction equipment for construction according to claim 1, characterized in that: A spiral groove is provided on the peripheral wall of the variable pitch spiral rod, a protrusion is provided in the first connecting tube, and the protrusion is slidably provided in the spiral groove; the flywheel includes a rotating ring and a plurality of blades; the plurality of blades are fixedly provided at the lower end of the first connecting tube, and the plurality of blades are distributed along the circumference of the first connecting tube; the rotating ring is provided outside the plurality of blades, the rotating ring can rotate relative to the blades, and can move up and down synchronously with the blades; the first elastic member connects the retaining ring and the rotating ring.

3. The rapid dust reduction equipment for construction according to claim 2, characterized in that: The pitch of the spiral groove on the variable pitch screw rod gradually decreases from bottom to top.

4. The rapid dust reduction equipment for construction according to claim 2, characterized in that: A partition is fixedly arranged in the inner cylinder, and a plurality of third through holes are opened on the partition; the partition is between the nozzle and the turbine chamber; the transmission mechanism is located above the partition, and the transmission mechanism includes a friction ring, a friction wheel, a planetary carrier and a plurality of planetary friction columns; the friction ring is fixedly connected to the lower side of the nozzle, and the friction ring and the inner cylinder are coaxially arranged; A plurality of planetary friction columns are located in the friction ring, and the plurality of planetary friction columns are distributed along the circumference of the friction ring, and the planetary friction columns are arranged vertically; the lower end of the planetary friction column is arranged on the partition plate, and the planetary friction column can rotate around its own axis; the planetary frame is arranged above the planetary friction column, and the plurality of planetary friction columns and the planetary frame are rotatably connected; A plurality of planetary friction columns and friction rings are in friction contact; the friction wheel is fixedly arranged on the first connecting tube, and the friction wheel and the first connecting tube are arranged coaxially; the friction wheel is located between a plurality of planetary friction columns, and the planetary friction columns and friction wheels are in friction contact.

5. The rapid dust reduction equipment for construction according to claim 4, characterized in that: A second connecting tube is fixedly arranged on the upper side surface of the planetary frame, and the second connecting tube and the inner tube are coaxially arranged; a threaded column is arranged in the second connecting tube, and the threaded column is vertically arranged, and the threaded column and the second connecting tube are threadedly matched; the upper part of the variable pitch screw rod is in the second connecting tube, and the upper end of the variable pitch screw rod is fixedly connected to the threaded column.

6. The rapid dust reduction equipment for construction according to claim 1, characterized in that: The first through hole and the second through hole are both arranged at an angle. When the driving mechanism is in the first working state, the inner side of the first through hole is at the front side of the flywheel's reverse rotation, and the outer side of the first through hole is at the rear side of the flywheel's reverse rotation; the inner side of the second through hole is at the rear side of the flywheel's reverse rotation, and the outer side of the first through hole is at the front side of the flywheel's reverse rotation.

7. The rapid dust reduction equipment for construction according to claim 1, characterized in that: It also includes a filter screen and a support cylinder, both of which are arranged in the inner cylinder, and the turbine chamber, the support cylinder and the filter screen are distributed in sequence from top to bottom.

8. The rapid dust reduction equipment for construction according to claim 3, characterized in that: Two first retaining rings are arranged on the inner circumferential wall of the inner cylinder, and the first retaining rings and the inner cylinder are arranged coaxially; the two first retaining rings are arranged in sequence along the up and down directions, and the upper end and the lower end of the friction ring are respectively against the two first retaining rings.

9. The rapid dust reduction equipment for construction according to claim 1, characterized in that: It also includes a bracket and an outer cylinder, the outer cylinder is fixedly arranged on the bracket; the outer cylinder is vertically arranged, and a water inlet is opened on the lower side of the outer cylinder; the inner cylinder and the outer cylinder are coaxially arranged, and the inner cylinder can be slid up and down in the outer cylinder; an end cover is arranged at the upper end of the outer cylinder, and the upper end surface of the nozzle is fixedly connected to the end cover.

10. The rapid dust reduction equipment for construction according to claim 9, characterized in that: A second retaining ring is fixedly arranged on the peripheral wall of the lower end of the inner cylinder, and the second retaining ring and the inner cylinder are arranged coaxially; a second elastic member is arranged on the outer side of the inner cylinder, and the second elastic member is arranged vertically, the upper end of the second elastic member is fixedly connected to the outer cylinder, and the lower end of the second elastic member is fixedly connected to the second retaining ring.

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