Energy-saving and environment-friendly building construction site dust removal device

Abstract

The invention belongs to the technical field of construction equipment and facilities, and provides an energy-saving and environment-friendly building construction site dust removal device which comprises a machine box, movable trundles, a supporting frame, a fixed hinge support, a fog gun barrel, an air cylinder, a flow guide assembly, a water spraying pipe, a nozzle, a pressure pipe, a water pump and an air blower. The water spraying pipe is arranged in the sealing water disc and connected with the nozzle, an oil inlet pipe nozzle, an oil outlet pipe nozzle and a bolt connected with the front hopper are arranged at the rear end of the sealing water disc, the air blower comprises an oil immersion motor, and the oil immersion motor is connected with the sealing water disc through a wall box, a circulating pipe nozzle, a first circulating oil pipe and a second circulating oil pipe. A tail barrel assembly is arranged at the tail end of the fog gun barrel and matched with the supporting frame in an elastic supporting mode. The system is reasonable in design, has an energy-saving effect, is good in stability, is suitable for outdoor construction environments in winter, and is suitable for large-scale popularization.

Description

Technical Field

[0001] The invention belongs to the technical field of construction equipment and facilities, and in particular relates to an energy-saving and environmentally friendly dust removal device for a construction site. Background Art

[0002] Since a large amount of dust will be generated at the construction site, a series of dust reduction and dust removal measures will be adopted for environmental protection, including pulling dust nets, setting up isolation belts, and arranging fog cannons. Among them, fog cannons have the advantages of easy operation and good mobility, and are widely used in dust reduction and dust removal operations at construction sites. The working principle of the fog cannon is: the high-pressure pump pressurizes the water, and the water is atomized into tiny water droplets through the high-pressure nozzle to form a mist-like water vapor; the fan is equipped to generate a strong airflow, and the atomized water mist is sent a long distance, so that the water mist is fully in contact and collision with the dust particles in the air. After the dust particles are adsorbed and moistened by the water mist, they condense and fall due to gravity, thereby achieving the effects of purifying the air, reducing dust and removing haze.

[0003] However, there are some objective problems in the actual use of fog cannons, such as limited use in winter, especially in the winter in cold northern regions. Most of the water spray branches and nozzles of fog cannons are directly exposed to the environment. For example, CN202222204457.7 discloses a fog cannon for construction sites that is easy to adjust in multiple directions. Due to the low temperature, if the water spray branch and nozzle of the fog cannon are blocked by ice, it will not be able to be used normally. The existing patent CN113058358A discloses an environmentally friendly fog cannon with strong adaptability, including a shell, one end of which is fixedly connected to an atomizing net, and a dual-axis motor is fixedly installed at the bottom of the shell, one end of the dual-axis motor is movably connected to a belt, and the other end of the belt is movably connected to a rotating shaft. In a low-temperature environment, the volume of the mercury filled in the active cavity of the fog cannon shrinks, causing the active blocks on both sides to move toward the middle, so that the coolant in the middle cavity is compressed, squeezing the active rod out and making contact with the connecting rod. After starting the dual-axis motor, the shaft rotates to drive the friction block, and then the friction block rotates and rubs with the heat-conducting block to generate heat to heat the water in the branch pipe. However, the problem with this device is that the friction heat generation / heating method will increase the power consumption of the motor, and mercury is used as a medium for thermal expansion and contraction, which will also cause safety problems; secondly, most fog cannons pay less attention to the stability of the tail end under the premise of having an elevation adjustment, and for outdoor use, the tail end is prone to instability, which directly affects the life of some connecting parts. Summary of the invention

[0004] In view of the technical problems existing in the above-mentioned fog cannon, the present invention proposes an energy-saving and environmentally friendly dust removal device for construction sites which has a reasonable design, energy-saving effect, good stability and is suitable for outdoor construction environments in winter.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is that the present invention provides an energy-saving and environmentally friendly dust removal device for a construction site, comprising a chassis, a movable caster is arranged at the bottom of the chassis, a support frame is arranged on the chassis, a fixed hinge support is arranged on the top of the support frame, a fog cannon barrel hinged to it is arranged on the fixed hinge support, a cylinder for controlling its elevation angle is arranged at the bottom of the fog cannon barrel, a flow guide component is arranged inside the fog cannon barrel, a water spray pipe, a plurality of nozzles connected to the water spray pipe and a pressure pipe connected to the water spray pipe are arranged at the spraying end of the fog cannon barrel, the pressure pipe is connected to a water pump arranged inside the chassis, a blower is arranged at the blowing end of the fog cannon barrel, a front bucket of a truncated cone structure is arranged at the spraying end of the fog cannon barrel, a sealed water tray is arranged on the inner side of the front bucket, and a plurality of sealing members for being threadedly connected to the nozzle are arranged at the end of the sealed water tray The countersunk hole connected to the oil pump, the water spray pipe is arranged inside the sealed water tray and connected to the nozzle, the rear end of the sealed water tray is provided with a connecting pipe connected to the water spray pipe, the connecting pipe passes through the front bucket and is connected to the pressure pipe, the rear end of the sealed water tray is provided with an oil inlet nozzle, an oil outlet nozzle and a bolt connected to the front bucket, the blower includes an oil-immersed motor, the power output end of the oil-immersed motor is provided with an impeller, two sides of the oil-immersed motor are provided with a pair of wall boxes connected to the interior thereof, each of the wall boxes is provided with a pair of circulation nozzles distributed axially front and back, the circulation nozzles are provided with insulating caps, a circulation nozzle of one of the wall boxes is provided with a first circulation oil pipe connected to the oil inlet nozzle, and a circulation nozzle of the other wall box is provided with a second circulation oil pipe connected to the oil outlet nozzle, the tail end of the fog cannon barrel is provided with a tail cylinder assembly, and the tail cylinder assembly is elastically supported by the support frame.

[0006] Preferably, a waist flange is provided at the waist of the fog cannon barrel, and at least two ear plates with ear holes are provided on the waist flange, and the ear plates are used to pass through the first circulating oil pipe and the second circulating oil pipe, the circulating nozzle connected to the first circulating oil pipe is close to the tail end of the oil-immersed motor, the circulating nozzle connected to the second circulating oil pipe is close to the power output end of the oil-immersed motor, the oil inlet nozzle is distributed close to the top end of the sealed water tray, and the oil outlet nozzle is distributed close to the bottom end of the fog cannon barrel.

[0007] Preferably, a plurality of reinforcing ribs are provided on the outer walls of the front bucket and the fog cannon barrel.

[0008] Preferably, the tail cylinder assembly includes a tail cylinder, an end flange is provided at the end of the tail cylinder, at least three supporting ribs are provided on the end flange and the cylinder surface of the tail cylinder, the support ribs are provided with spring grooves and buffer ports opposite to the spring grooves, a first buffer spring and a buffer top plate are respectively provided in the spring grooves and the buffer ports, all buffer top plates are connected by two concentrically distributed conduction rings, a double-tube fixing is provided at the bottom of the conduction ring, a tension spring is provided on the double-tube fixing, universal hinges are provided at both ends of the tension spring, and the universal hinges are connected to the support frame.

[0009] Preferably, the double-tube fixing member comprises two fixing tubes, and a fixing plate is arranged between the fixing tubes.

[0010] Preferably, the tension spring comprises a spiral section, the spiral section is sequentially penetrated by a plurality of through holes arranged on the fixing plate, and S-shaped sections are arranged at both ends of the spiral section.

[0011] Preferably, the support frame includes a square tube, a plurality of vertically distributed long holes are provided on the square tube, a movable plate group is provided on the square tube for vertically movably cooperating with the square tube, the movable plate group includes a rear plate for installing a universal hinge and embracing the square tube, a guide slider cooperating with the long holes is provided on the rear plate, a front plate opposite to the rear plate is provided on the other side of the square tube, screw holes are provided on the front plate, positioning screws connected with the guide slider are provided in the screw holes, an H-shaped inner column is provided inside the square tube, the inner column and the guide slider are plugged in up and down, and a second buffer spring is provided between the inner column and the guide slider.

[0012] Preferably, the supporting rib comprises a wall panel section connected to the tail cylinder and the end flange, the wall panel section is provided with a triangular plate section vertically connected thereto, the triangular plate section is provided with a conical surface, the spring groove is arranged inside the conical surface, the first buffer spring is a variable diameter spring and its maximum spiral radius faces the buffer port.

[0013] Preferably, the mouth wall of the buffer port is a hyperbolic surface, and the buffer top plate includes a circular plate body, and a cone is arranged on the circular plate body, and the tip of the cone faces the spiral center of the first buffer spring.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are:

[0015] 1. The present invention provides an energy-saving and environmentally friendly dust removal device for construction sites. The device uses a sealed water tray to seal and install the water spray pipe, reducing the exposed area of ​​the water spray pipe in a low-temperature environment. The device uses an oil-immersed motor as the power source of the blower, and the liquid oil in the oil-immersed motor is used in the preheating / heating of the water spray pipe in an external circulation manner, which is beneficial to ensure the working performance of the water spray pipe and the nozzle under low-temperature conditions, and has a cooling effect on the oil-immersed motor, achieving multiple goals at one stroke. The tail barrel assembly is used to elastically support the tail of the fog cannon barrel, which is beneficial to improving the working stability of the fog cannon. The device is reasonably designed, has energy-saving effects, good stability, is suitable for outdoor construction environments in winter, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A three-dimensional diagram of an energy-saving and environmentally friendly dust removal device for a construction site provided in an embodiment;

[0018] Figure 2 A left view of an energy-saving and environmentally friendly dust removal device for a construction site provided in an embodiment;

[0019] Figure 3 A front view of an energy-saving and environmentally friendly dust removal device for a construction site provided in an embodiment;

[0020] Figure 4 A top view of an energy-saving and environmentally friendly dust removal device for a construction site provided in an embodiment;

[0021] Figure 5 It is a working schematic diagram of the sealed water pan, the first circulating oil pipe, the second circulating oil pipe and the oil immersed motor;

[0022] Figure 6 It is a three-dimensional diagram of the sealed water pan, the first circulating oil pipe, the second circulating oil pipe and the oil-immersed motor;

[0023] Figure 7 It is the internal schematic diagram of the sealed water pan;

[0024] Figure 8 It is a top view of the sealed water pan, the first circulating oil pipe, the second circulating oil pipe and the oil immersed motor;

[0025] Fig. 9 An axonometric view of a movable panel assembly provided for an embodiment;

[0026] Fig.10 A cross-sectional view of a movable plate assembly provided for an embodiment;

[0027] Fig.11 is a three-dimensional diagram of a blower;

[0028] Fig.12 is a three-dimensional diagram of a tail cylinder assembly;

[0029] Fig.13 It is a left side view of the tail cylinder assembly;

[0030] In the above figures:

[0031] 1. Chassis; 2. Mobile casters; 3. Support frame; 31. Square tube; 32. Long hole; 4. Fixed hinge support; 5. Mist cannon barrel; 51. Front bucket; 52. Waist flange; 53. Ear plate; 54. Strengthening rib plate; 6. Cylinder; 7. Guide assembly; 8. Water spray pipe; 9. Nozzle; 10. Pressure pipe; 11. Blower; 111. Oil-immersed motor; 112. Impeller; 113. Wall box; 114. Circulation nozzle; 115. Insulation plug cap; 12. Sealed water tray; 121. Connection pipe; 122. Bolt; 123. Oil inlet nozzle; 124. Oil outlet nozzle; 13. First circulation oil pipe; 14. Second circulation oil pipe; 15. Tail cylinder assembly; 151. Tail cylinder; 152. End flange; 153. Support rib; 1531. Wall plate section; 1532. Triangular plate section; 1533. Conical surface; 154. First buffer spring; 155. Buffer top plate; 1551. Circular plate body; 1552. Conical body; 156. Conducting ring; 157. Double-tube fixing piece; 158. Tension spring; 1581. Spiral section; 1582. S-shaped section; 159. Universal hinge; 16. Movable plate group; 161. Rear plate; 162. Guide slider; 163. Front plate; 164. Positioning screw; 165. Inner column; 166. Second buffer spring. DETAILED DESCRIPTION

[0032] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear below, they only indicate that the upper, lower, left and right directions are consistent with the accompanying drawings themselves, and do not limit the structure.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0034] Examples, such as Figure 1-Figure 13As shown, an energy-saving and environmentally friendly dust removal device for a construction site provided by the present invention comprises a chassis 1, a movable caster 2 is arranged at the bottom of the chassis 1, a support frame 3 is arranged on the chassis 1, a fixed hinge support 4 is arranged at the top of the support frame 3, a fog cannon barrel 5 hinged to the fixed hinge support 4 is arranged, a cylinder 6 for controlling the elevation angle of the fog cannon barrel 5 is arranged at the bottom of the fog cannon barrel 5, a flow guide component 7 is arranged inside the fog cannon barrel 5, a water spray pipe 8, a plurality of nozzles 9 connected to the water spray pipe 8 and a pressure pipe 10 connected to the water spray pipe 8 are arranged at the spraying end of the fog cannon barrel 5, the pressure pipe 10 is connected to a water pump arranged inside the chassis 1, and a blower 11 is arranged at the blowing end of the fog cannon barrel 5. Among them, the chassis 1 is provided with a water storage barrel / box, a water pump and an air source station, etc. For example, the water pump is connected to the pressure pipe 10 to pump the high-pressure water flow into the water spray pipe 8, and then the water spray pipe 8 distributes it to all the nozzles 9 to complete the atomization; the chassis 1 can be moved at the construction site through the movable casters 2; the support frame 3 and the fixed hinge support 4 provide hinge conditions for the fog cannon barrel 5, and the cylinder 6 is used to control and adjust the spray angle of the fog cannon barrel 5; the guide component 7 can guide the wind force blown out by the blower 11 to the atomization range, and spray the atomized water mist to the dust removal range.

[0035] On this basis, the spraying end of the mist cannon barrel 5 provided by the present invention is provided with a front bucket 51 of a truncated cone structure, a sealed water tray 12 is provided on the inner side of the front bucket 51, and a plurality of countersunk holes for threaded connection with the nozzle 9 are provided at the end of the sealed water tray 12, a water spray pipe 8 is provided inside the sealed water tray 12 and connected to the nozzle 9, a connecting pipe 121 connected to the water spray pipe 8 is provided at the rear end of the sealed water tray 12, the connecting pipe 121 passes through the front bucket 51 and is connected to the pressure pipe 10, an oil inlet nozzle 123, an oil outlet nozzle 124 and a bolt 122 connected to the front bucket 51 are provided at the rear end of the sealed water tray 12, and the blower 11 includes an oil-immersed motor 111, the oil-immersed motor 111 An impeller 112 is provided at the power output end, and a pair of wall boxes 113 connected to the interior of the oil-immersed motor 111 are provided on both sides of the oil-immersed motor 111. Each of the wall boxes 113 is provided with a pair of circulation nozzles 114 distributed axially in the front and rear directions. The circulation nozzles 114 are provided with insulating caps 115 for sealing and insulation. A first circulation oil pipe 13 connected to the oil inlet nozzle 123 is provided on a circulation nozzle 114 of one of the wall boxes 113, and a second circulation oil pipe 14 connected to the oil outlet nozzle 124 is provided on the circulation nozzle 114 of the other wall box 113. A tail cylinder assembly 15 is provided at the tail end of the fog cannon barrel 5, and the tail cylinder assembly 15 is elastically supported and matched with the support frame 3.

[0036] Specifically, the sealing water tray 12 is a shell-like structure. The sealing water tray 12 is used to seal and install the water spray pipe 8, thereby reducing the exposure area of ​​the water spray pipe 8 in the low-temperature environment. At the same time, the countersunk hole for installing the nozzle 9 is also in contact with the liquid oil filling range in the sealing water tray 12, so the heat conduction area of ​​the liquid oil also covers the installation surface of the nozzle 9. In particular, the present invention adopts an oil-immersed motor 111 as the power source of the blower 11, so that the oil-immersed motor 111 is not only used to drive the impeller 112 to perform continuous rotation to complete the blowing; at the same time, since the rotor and stator inner cavities of the oil-immersed motor 111 are filled with a large amount of liquid oil, and the fog cannon barrel 5 has the inclined working characteristics, the liquid oil enters the external circulation channel under the action of rotational power and gravity; further, the wall box 113, the circulation nozzle 114, the first circulation oil pipe 13, and the second circulation oil pipe 14 constitute an external circulation pipeline, and the sealed water tray 12 is the second working chamber for the liquid oil to exchange heat. In this way, the liquid oil in the oil-immersed motor 111 is used to preheat / heat the water spray pipe 8 in an external circulation manner, which is beneficial to ensure the working performance of the water spray pipe 8 and the nozzle 9 under low temperature conditions, and has a cooling effect on the oil-immersed motor 111, achieving multiple goals at one stroke, not only reasonably utilizing the heat generated by the motor work, but also cooling the motor to complete the work, so under the premise of energy saving, the device is also suitable for winter outdoor construction environment.

[0037] Since the center of gravity of the fog cannon barrel 5 and the entire structure on which it is installed is located on the rear side of its flipping center of gravity, the present invention provides a tail cylinder assembly 15 to elastically support the tail of the fog cannon barrel 5, and the tail cylinder assembly 15 is used to buffer the vibration and shaking generated by the tail of the fog cannon barrel 5, and a part of the vibration potential energy can be transmitted to the chassis 1 through the support frame 3, which is beneficial to improving the working stability of the fog cannon machine at an inclined working angle, helping to share the load at other hinged positions of the fog cannon barrel 5, and helping to extend the actual service life of other connecting components.

[0038] like Figure 4-Figure 8As shown, a waist flange 52 is provided at the waist of the fog cannon barrel 5, and a waist-shaped hole for connecting the first circulating oil pipe 13 and the second circulating oil pipe 14 to the wall box 113 is also provided on the barrel body of the fog cannon barrel 5, and at least two ear plates 53 with ear holes are provided on the waist flange 52, and the ear plates 53 are used to pass through the first circulating oil pipe 13 and the second circulating oil pipe 14, the circulating nozzle 114 connected to the first circulating nozzle 114 is close to the tail end of the oil-immersed motor 111, and the circulating nozzle 114 connected to the second circulating oil pipe 14 is close to the power output end of the oil-immersed motor 111, the oil inlet nozzle 123 is distributed near the top end of the sealed water tray 12, and the oil outlet nozzle 124 is distributed near the bottom end of the fog cannon barrel 5. The fog cannon barrel 5 is generally composed of at least two sections of the front and rear barrels, and is usually connected by flanges. Therefore, the waist flange 52 is set at the joint position to play the role of a flange on the one hand, and to provide a constraint basis for the first circulating oil pipe 13 and the second circulating oil pipe 14 on the other hand, such as using the ear plate 53 to perform basic positioning on the penetration orientation of the first circulating oil pipe 13 and the second circulating oil pipe 14. Regarding the design of the connection node of the first circulating oil pipe 13 and the second circulating oil pipe, including the connection nodes of the two on the sealed water tray 12 and the oil immersed motor 111, by setting the corresponding nodes at a reasonable orientation, the liquid oil can enter the second circulating oil pipe 14 from the low position of the sealed water tray 12 under the action of gravity, and the liquid oil in the second circulating oil pipe 14 enters the oil immersed motor 111 along the pipeline and the direction of gravity, and the liquid oil at the bottom of the oil immersed motor 111 is pumped into the first circulating oil pipe 13, and the liquid oil in the first circulating oil pipe 13 enters the sealed water tray 12 under the action of power, thereby realizing the external circulation of the liquid oil. In this way, the liquid oil can not only dissipate the heat generated by the rotor and mover of the oil-immersed motor 111 under working conditions, but also preheat / heat the water spray pipe 8 and nozzle 9 in the sealed water tray 12, so that the temperature of the atomization end of the water flow is maintained above the freezing line, thereby meeting the working requirements of the equipment in a low temperature environment.

[0039] like Figure 4 As shown, a plurality of reinforcing ribs 54 are provided on the outer walls of the front bucket 51 and the fog cannon barrel 5. The reinforcing ribs 54 are used to strengthen the structural strength of the connection position between the front bucket 51 and the fog cannon barrel 5 on the one hand, and on the other hand, the reinforcing plates and the bolts 122, the oil inlet nozzle 123, the oil outlet nozzle 124 and the connecting pipe 121 are equally spaced, so that each nozzle is in a concealed installation condition to avoid being easily hooked by other equipment on the construction site, which is beneficial to ensure the connection reliability of each pipeline.

[0040] like Figure 4 , Fig.12 and Fig.13As shown, the tail cylinder assembly 15 includes a tail cylinder 151, an end flange 152 is provided at the end of the tail cylinder 151, at least three supporting ribs 153 are provided on the end flange 152 and the cylinder surface of the tail cylinder 151, the supporting rib 153 is provided with a spring groove and a buffer port opposite to the spring groove, a first buffer spring 154 and a buffer top plate 155 are respectively provided in the spring groove and the buffer port, all the buffer top plates 155 are connected by two concentrically distributed conductive rings 156, a double-tube fixing piece 157 is provided at the bottom of the conductive ring 156, a tension spring 158 is provided on the double-tube fixing piece 157, universal hinges 159 are provided at both ends of the tension spring 158, and the universal hinge 159 is connected to the support frame 3. Among them, one end of the tail cylinder 151 is preferably welded to the fog cannon barrel 5, and one end of the end flange 152 is used to fix the air inlet filter of the blower 11; the support rib 153 is located on the barrel of the tail cylinder 151, on the one hand, it strengthens the structural strength of the barrel and the end flange 152, and on the other hand, it is used to transmit the vibration generated by the fog cannon during operation; further, the support rib 153 is affected by the working vibration of the fog cannon and the oil-immersed motor 111, and the first buffer spring 154 inside it transmits the vibration to the buffer top plate 155, and the conduction ring 156 on the buffer top plate 155 transmits the vibration to the double-tube fixing part 157, and the double-tube fixing part 157 transmits the vibration to the tension spring 158. Part of the vibration potential energy received by the tension spring 158 can be buffered by the relative deformation between it and the support frame 3, and a small part of the vibration potential energy is transmitted to the support frame 3 through the tension spring 158 and then to the chassis 1, and the excess vibration potential energy is transmitted to the ground, thereby ensuring the working stability of the fog cannon barrel 5 at an inclined working angle.

[0041] In order to improve the efficiency of transmitting vibration from the conduction ring 156 to the tension spring 158, the double-tube fixing member 157 provided in the present invention includes two fixed tubes, a fixed plate is arranged between the fixed tubes, the fixed tubes are fixedly nested on the conduction ring 156, and the fixed plate is used to directly transmit the vibration received by the fixed tubes to the tension spring 158.

[0042] Furthermore, the tension spring 158 provided by the present invention includes a spiral section 1581, which is sequentially penetrated with a plurality of through holes provided on the fixed plate, and an S-shaped section 1582 is provided at both ends of the spiral section 1581. During the process of passively adjusting the angle of the fog cannon barrel 5, the stretching length of the S-shaped section 1582 and the support frame 3 changes, and the stretching angle is also adaptively adjusted under the connection of the universal hinge 159, and the spiral section 1581 as a whole is correspondingly deformed in the through hole, thereby meeting the need for angle adjustment of the fog cannon barrel 5, and always maintaining a reliable connection relationship and an elastic support relationship.

[0043] like Figure 2 , Fig. 9 and Fig.10As shown, the support frame 3 includes a square tube 31, and a plurality of vertically distributed long holes 32 are provided on the square tube 31. A movable plate group 16 that cooperates with the square tube 31 and moves up and down is provided on the square tube 31. The movable plate group 16 includes a rear plate 161 for installing a universal hinge 159 and embracing the square tube 31, and a guide slider 162 that cooperates with the long holes 32 is provided on the rear plate 161. A front plate 163 opposite to the rear plate 161 is provided on the other side of the square tube 31, and a screw hole is provided on the front plate 163. A positioning screw 164 connected with the guide slider 162 is provided in the screw hole. An H-shaped inner column 165 is provided inside the square tube 31, and the socket on the top of the inner column 165 is plug-fitted with the guide slider 162 in an up and down manner, and a second buffer spring 166 is provided between the inner column 165 and the guide slider 162. During the process of passive adjustment of the angle of the fog cannon barrel 5, the front plate 163, the rear plate 161 and the slider maintain dynamic balance under the action of the tension spring 158 and the second buffer spring 166, thereby achieving a shock-absorbing effect. In addition, this can avoid a large deflection of the S-shaped section 1582 of the tension spring 158, thereby ensuring the overall working performance of the equipment.

[0044] In order to improve the utilization rate of the supporting ribs 153, the supporting ribs 153 provided by the present invention include a wall plate section 1531 connected to the tail cylinder 151 and the end flange 152, a triangular plate section 1532 vertically connected to the wall plate section 1531 is provided, a conical surface 1533 is provided on the triangular plate section 1532, a spring groove is provided inside the conical surface 1533, and the first buffer spring 154 is a variable diameter spring with its maximum spiral radius facing the buffer port. In this way, the annular surface of the conductive ring 156 with a smaller diameter can maintain a certain relative distance from the arm plate section to avoid friction between the conductive ring 156 and the tail cylinder 151, and the two transmission rings simultaneously connect all the buffer top plates 155, which can establish a better force support condition with the first buffer spring 154, so that the vibration of the tail cylinder 151 is transmitted from the first buffer spring 154 to the conductive ring 156, and then to the tension spring 158, and the transmission path of the vibration force is completed from the tail cylinder 151. The suspended transmission is beneficial to improve the buffering performance and dynamic balance performance of the tail cylinder assembly 15.

[0045] In order to improve the stability of the buffer top plate 155 and its supporting performance with the first buffer spring 154, the mouth wall of the buffer port provided by the present invention is a hyperbolic surface, and the buffer top plate 155 includes a circular plate body 1551, and a cone 1552 is arranged on the circular plate body 1551, and the tip of the cone 1552 is facing the spiral center of the first buffer spring 154. In this way, the stability of the suspended conduction path formed by the buffer top plate 155, the conduction ring 156 and the double-tube fixing member 157 can be improved, thereby ensuring the force balance performance at both ends of the tension spring 158.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An energy-saving and environmentally friendly dust removal device for a construction site, comprising a chassis, wherein the bottom of the chassis is provided with movable casters, the chassis is provided with a support frame, the top of the support frame is provided with a fixed hinge support, a fog cannon barrel hinged thereto is provided on the fixed hinge support, a cylinder for controlling the elevation angle of the fog cannon barrel is provided at the bottom of the fog cannon barrel, a flow guide component is provided inside the fog cannon barrel, a water spray pipe, a plurality of nozzles connected to the water spray pipe and a pressure pipe connected to the water spray pipe are provided at the spraying end of the fog cannon barrel, the pressure pipe is connected to a water pump provided inside the chassis, and a blower is provided at the blowing end of the fog cannon barrel, characterized in that: The spraying end of the fog cannon barrel is provided with a front bucket of a truncated cone structure, the inner side of the front bucket is provided with a sealed water tray, the end of the sealed water tray is provided with a plurality of countersunk holes for threaded connection with the nozzle, the water spray pipe is provided inside the sealed water tray and connected with the nozzle, the rear end of the sealed water tray is provided with a connecting pipe connected with the water spray pipe, the connecting pipe passes through the front bucket and is connected with the pressure pipe, the rear end of the sealed water tray is provided with an oil inlet nozzle, an oil outlet nozzle and a bolt connected with the front bucket, the blower includes an oil-immersed motor, the power output end of the oil-immersed motor is provided with an impeller, a pair of wall boxes connected with the interior of the oil-immersed motor are provided on both sides of the oil-immersed motor, each of the wall boxes is provided with a pair of circulation nozzles distributed axially front and back, the circulation nozzles are provided with insulating plugging caps, a first circulation oil pipe connected with the oil inlet nozzle is provided on a circulation nozzle of one of the wall boxes, and a second circulation oil pipe connected with the oil outlet nozzle is provided on the circulation nozzle of the other wall box, and a tail cylinder assembly is provided at the tail end of the fog cannon barrel, and the tail cylinder assembly is elastically supported and matched with the support frame.

2. The energy-saving and environmentally friendly dust removal device for construction sites according to claim 1 is characterized in that: A waist flange is provided at the waist of the fog cannon barrel, and at least two ear plates with ear holes are provided on the waist flange, and the ear plates are used to pass through the first circulating oil pipe and the second circulating oil pipe. The circulating nozzle connected to the first circulating nozzle is close to the tail end of the oil-immersed motor, and the circulating nozzle connected to the second circulating oil pipe is close to the power output end of the oil-immersed motor. The oil inlet nozzle is distributed near the top end of the sealed water tray, and the oil outlet nozzle is distributed near the bottom end of the fog cannon barrel.

3. The energy-saving and environmentally friendly dust removal device for construction sites according to claim 2 is characterized in that: A plurality of reinforcing ribs are arranged on the outer walls of the front bucket and the fog cannon barrel.

4. The energy-saving and environmentally friendly dust removal device for construction sites according to claim 1 is characterized in that: The tail cylinder assembly includes a tail cylinder, an end flange is provided at the end of the tail cylinder, at least three supporting ribs are provided on the end flange and the cylinder surface of the tail cylinder, the supporting ribs are provided with a spring groove and a buffer port opposite to the spring groove, a first buffer spring and a buffer top plate are respectively provided in the spring groove and the buffer port, all buffer top plates are connected by two concentrically distributed conductive rings, a double-tube fixing piece is provided at the bottom of the conductive ring, a tension spring is provided on the double-tube fixing piece, universal hinges are provided at both ends of the tension spring, and the universal hinges are connected to the support frame.

5. The energy-saving and environmentally friendly dust removal device for construction sites according to claim 4 is characterized in that: The double-tube fixing member comprises two fixing tubes, and a fixing plate is arranged between the fixing tubes.

6. The energy-saving and environmentally friendly dust removal device for construction sites according to claim 5 is characterized in that: The tension spring comprises a spiral section, the spiral section is sequentially penetrated by a plurality of through holes arranged on the fixing plate, and two ends of the spiral section are provided with S-shaped sections.

7. The energy-saving and environmentally friendly dust removal device for construction sites according to claim 6 is characterized in that: The support frame includes a square tube, a plurality of vertically distributed long holes are provided on the square tube, a movable plate group is provided on the square tube for vertically movably cooperating with the square tube, the movable plate group includes a rear plate for installing a universal hinge and embracing the square tube, a guide slider cooperating with the long holes is provided on the rear plate, a front plate opposite to the rear plate is provided on the other side of the square tube, screw holes are provided on the front plate, positioning screws connected with the guide slider are provided in the screw holes, an H-shaped inner column is provided inside the square tube, the inner column and the guide slider are plugged in and matched with each other up and down, and a second buffer spring is provided between the inner column and the guide slider.

8. An energy-saving and environmentally friendly dust removal device for construction sites according to claim 4 or 7, characterized in that: The supporting rib plate includes a wall plate section connected to the tail cylinder and the end flange, the wall plate section is provided with a triangular plate section vertically connected thereto, the triangular plate section is provided with a conical surface, the spring groove is arranged inside the conical surface, the first buffer spring is a variable diameter spring and its maximum spiral radius faces the buffer port.

9. The energy-saving and environmentally friendly dust removal device for construction sites according to claim 8, characterized in that: The mouth wall of the buffer port is a hyperbolic surface, and the buffer top plate includes a circular plate body, on which a cone is arranged, and the tip of the cone faces the spiral center of the first buffer spring.

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