Explosion-proof high-frequency spiral fog gun machine

Abstract

The invention discloses an explosion-proof type high-frequency spiral fog gun machine, and relates to dust suppression and falling equipment in coal mine collection, transportation and storage, the explosion-proof type high-frequency spiral fog gun machine comprises a shell assembly, a high-frequency transmission assembly and a fixing assembly, the high-frequency transmission assembly is assembled in the shell assembly through the fixing assembly, the high-frequency transmission assembly comprises a transmission shaft pipe, a high-pressure spray pipe, an impeller and a water inlet connector, the rear end of the transmission shaft pipe communicates with the water inlet connector and can supply water into the high-pressure spray pipe, the impeller is assembled on the transmission shaft pipe and can rotate synchronously with the transmission shaft pipe, and the impeller is used for blowing airflow to the high-pressure spray pipe. The whole machine body of the equipment does not generate electrostatic hazards, a motor is not used for forcibly atomizing water, effective anti-explosion measures are adopted, anti-explosion proof is not needed any more, the production cost is reduced, the production efficiency is improved, and the fog gun machine can descend into a well without anti-explosion certificates.

Description

Technical Field

[0001] This invention relates to dust suppression equipment used in coal mining, transportation, and storage, and in particular to an explosion-proof high-frequency spiral fog cannon. Background Technology

[0002] Mining sites, including the underground mining environment, are filled with large amounts of coal dust, gas, and other flammable materials in the surrounding air. This poses a health hazard to workers and presents potential safety risks. Therefore, it is necessary to carry out comprehensive dust suppression operations to reduce coal dust and eliminate safety hazards.

[0003] However, the safety of equipment in mines is particularly important. Most existing dust suppression fog cannons are prone to generating static electricity and require the use of electric motors to force the water to atomize. The rotor electrical equipment used in the equipment must adopt effective explosion-proof facilities, resulting in high production and manufacturing costs and requiring explosion-proof certificates and other certifications. Summary of the Invention

[0004] The purpose of this invention is to provide an explosion-proof high-frequency spiral fog cannon. The entire machine body of this invention will not generate static electricity hazards, and it no longer uses an electric motor to force water atomization. It adopts effective explosion-proof measures, eliminating the need for explosion-proof certification, reducing production costs, improving production efficiency, and enabling fog cannons to be used in wells without explosion-proof certification.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0006] This invention provides an explosion-proof high-frequency spiral fog cannon, comprising a housing assembly, a high-frequency transmission assembly, and a fixing assembly. The high-frequency transmission assembly is assembled within the housing assembly via the fixing assembly. The high-frequency transmission assembly includes a transmission shaft tube, a high-pressure nozzle, an impeller, and a water inlet connector. The high-pressure nozzle is fixedly mounted to the front end of the transmission shaft tube in a T-shaped three-way structure at its middle section, allowing the high-pressure nozzle to rotate synchronously with the transmission shaft tube. The rear end of the transmission shaft tube is connected to the water inlet connector and can supply water to the high-pressure nozzle. The impeller is mounted on the transmission shaft tube and can rotate synchronously with the transmission shaft tube. The impeller is used to blow airflow towards the high-pressure nozzle.

[0007] The fixing assembly includes a fixing spring group and a central fixing plate fixedly mounted on the transmission shaft tube. The fixing spring group includes four sets of shock-absorbing suspension springs mounted in a cross shape around the central fixing plate. The distal ends of the shock-absorbing suspension springs are mounted inside the housing assembly. At least two central fixing plates are provided along the length of the transmission shaft tube to stabilize the high-frequency transmission assembly.

[0008] The plane formed by the intersection of the axis of the drive shaft tube and the axis of the high-pressure nozzle is taken as the plane of symmetry. The positions of the high-pressure nozzles at both ends of the high-pressure nozzle are centrally symmetrical about this plane of symmetry. In the working state, the jet direction of the high-pressure nozzle is at an angle of 5-10° with this plane of symmetry.

[0009] As a preferred embodiment of the present invention, the shock-absorbing suspension spring is provided with a spring assembly fixing end and a spring assembly fixing end at both ends, wherein the spring assembly fixing end is connected to the annular surface of the central fixing plate, and the spring assembly fixing end is connected to the spring assembly fixing opening of the housing assembly.

[0010] As a preferred embodiment of the present invention, a rotating bushing and a bearing are provided between the central fixed disk and the transmission shaft tube.

[0011] As a preferred embodiment of the present invention, the housing assembly includes a cylindrical housing, a support base, a strong magnetic fixing plate, a strong magnetic fixing rod, and a protective net. The transmission shaft tube is installed inside the cylindrical housing, aligned with the axis of the cylindrical housing. The cylindrical housing is installed on the support base at a horizontal inclination angle of 5-10°. The strong magnetic fixing plate and the strong magnetic fixing rod are arranged on both sides of the support base. The protective net is positioned opposite the spray direction of the high-pressure nozzle.

[0012] As a preferred technical solution of the present invention, the cylindrical shell further includes a water-passing ring coaxially arranged therewith. The water-passing ring is wrapped around the front end of the cylindrical shell and integrally formed or fixedly assembled with the cylindrical shell. A plurality of high-pressure nozzles are provided on one end face of the water-passing ring facing the direction of high-pressure nozzle injection. The high-pressure nozzles spray outward perpendicular to the outer end face of the water-passing ring. The ring surface of the water-passing ring is provided with a water inlet for supplying water to the high-pressure nozzles.

[0013] As a preferred embodiment of the present invention, the housing assembly further includes a water inlet pipe with a water inlet valve, the water inlet pipe being used to supply water to the water inlet connector and the water inlet.

[0014] As a preferred embodiment of the present invention, the high-pressure nozzle is a split structure, including a central T-shaped connector pipe and detachable sleeves on both sides;

[0015] The detachable sleeve includes a sleeve body, a pipe shell, a filter element, and a manifold. The sleeve body and the T-type connector pipe can be sealed and connected by a sealing element and a threaded structure. The filter element can be embedded into the sleeve body through the connection port of the sleeve body. The manifold is provided at the other end of the filter element inside the sleeve body, which is connected to the outlet of the filter element. The high-pressure nozzle is assembled on one side of the manifold and sprays water outward through the spray hole opened on the sleeve body corresponding to the high-pressure nozzle. An air gap is left between the high-pressure nozzle and the spray hole.

[0016] As a preferred embodiment of the present invention, the high-pressure nozzle includes a manifold connector, a cylindrical rotating joint, and a nozzle body. The nozzle body forms a variable angle with the plane of symmetry through the cylindrical rotating joint and can swing in the vertical plane of the plane of symmetry. The high-pressure nozzle supplies water to the nozzle body through the manifold connector.

[0017] As a preferred embodiment of the present invention, the detachable sleeve further includes a nozzle angle adjustment mechanism. The nozzle angle adjustment mechanism includes an arc-shaped lever, a centrifugal ring, a trigger bar, and an end fixing ring. The centrifugal ring is coaxially sleeved on the outside of the sleeve body and can slide along the sleeve body. The end fixing ring is disposed at the outer end of the sleeve body. The trigger bar extends from the centrifugal ring toward the end fixing ring. An oblique groove is provided on the trigger bar. One end of the arc-shaped lever is provided with a sliding part that can be embedded in the oblique groove and slide in cooperation with the oblique groove. The other end is provided with a connecting part that is fixedly connected to the nozzle body.

[0018] When the centrifugal ring moves toward the outer end of the sleeve body, the sliding part of the arc-shaped lever can push the nozzle body to rotate toward the symmetry plane to reduce the included angle. When the centrifugal ring moves toward the connection port of the sleeve body, the sliding part of the arc-shaped lever can pull the nozzle body to rotate away from the symmetry plane to increase the included angle.

[0019] The end fixing ring is provided with an elastic groove corresponding to the front end of the trigger bar, and the front end of the trigger bar is provided with a locking head. When the centrifugal ring moves to the outer end of the sleeve body to the maximum stroke, the trigger bar can be embedded in the elastic groove by the locking head to lock the position of the centrifugal ring.

[0020] As a preferred technical solution of the present invention, the detachable sleeve further includes an end cap, the end cap including an inner cover body, an outer cover body and an air filter between the two, the inner cover body and the outer cover body are rotatably fitted, and the inner cover body and the outer cover body are provided with vent holes offset from each other, rotating the inner cover body and the outer cover body can make the vent holes connect or close the inner cavity of the sleeve body to the outside.

[0021] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0022] In this invention, a high-frequency transmission component is assembled inside a housing component using a shock-absorbing suspension spring. The high-pressure nozzle is driven to rotate at high frequency by the forced mutual pushing force of the high-pressure nozzles. The high-frequency water flow impact force is used to drive the high-pressure nozzle to rotate and form a high-frequency water spiral mist pile. This eliminates the need for costly electric drive. The shock-absorbing suspension spring stabilizes the impeller and other unstable factors, reduces the air pressure on the equipment and the surrounding environment, and achieves a safer and more stable mining machinery. It also improves the dust adsorption rate of water mist, thereby improving the dust suppression effect, and makes full use of water resources.

[0023] On the other hand, the present invention adopts a split high-pressure nozzle structure, which can quickly assemble and replace the filter element and is convenient to use. At the same time, the high-pressure nozzle is equipped with a nozzle angle adjustment mechanism (without using a motor and without needing explosion-proof certification), which can make the jet deflection angle of the high-pressure nozzle larger before the equipment is started to enhance the mutual thrust effect and quickly start the high-pressure nozzle to rotate at high frequency. After the rotation is stable, the jet deflection angle of the high-pressure nozzle is reduced, maintaining a part of the mutual thrust force while enhancing the dust suppression effect of spraying through the jet and spraying water mist further.

[0024] In addition, the present invention can control and protect the water mist ejected from the high-pressure nozzle by means of a water-passing ring, while increasing the water mist coverage area; and the water mist sprayed by the present invention is all solid water mist, which has a better dust suppression effect and a larger coverage area compared with the cone-shaped water mist generally sprayed by fog cannons in the prior art. Attached Figure Description

[0025] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0026] Figure 1 This is a schematic diagram of the working state of the present invention.

[0027] Figure 2 This is a front view of the present invention.

[0028] Figure 3 It is a side view of the present invention.

[0029] Figure 4 This is a schematic diagram of the structure of the fixing component in this invention.

[0030] Figure 5 This is a schematic diagram of the high-frequency transmission component in this invention.

[0031] Figure 6 This is a schematic diagram of the high-pressure nozzle structure in some embodiments of the present invention.

[0032] Figure 7This is a schematic diagram of the detachable sleeve in some embodiments of the present invention.

[0033] Figure 8 yes Figure 7 A cross-sectional schematic diagram of the detachable sleeve.

[0034] Figure 9 yes Figure 7 A schematic diagram of the middle end fixing ring.

[0035] Figure 10 This is a schematic diagram of the nozzle angle adjustment mechanism in some embodiments of the present invention.

[0036] In the picture:

[0037] 100. Housing assembly; 200. High-frequency transmission assembly; 300. Symmetry plane; 400. Fixing assembly;

[0038] 101. Spring assembly fixing opening; 110. Cylindrical shell; 120. Support base; 130. Strong magnetic fixing plate; 140. Strong magnetic fixing rod; 150. Protective net; 160. Water-passing ring; 161. High-pressure nozzle; 162. Water inlet; 170. Water inlet pipe; 171. Water inlet valve.

[0039] 210. Drive shaft tube; 220. High-pressure nozzle; 230. Impeller; 240. Water inlet connector; 250. High-pressure nozzle; 251. Manifold connector; 252. Columnar rotating joint; 253. Nozzle body; 254. Spray hole; 260. Detachable sleeve; 261. Sleeve body; 2611. Guide bar; 262. Tube shell; 263. Filter element; 264. Manifold; 265. End cap; 2651. Inner cover; 2652. Outer cover; 2653. Air filter; 2654. Vent hole; 270. T-type connector tube; 280. Nozzle angle adjustment mechanism; 281. Arc-shaped lever; 282. Centrifugal ring; 283. Trigger bar; 284. End fixing ring; 285. Slanted slide groove; 286. Elastic groove; 287. Locking clip; 288. Reset slide button.

[0040] 410. Fixed spring assembly; 411. Shock-absorbing suspension spring; 412. Fixed end of spring assembly; 413. Fixed end of spring assembly; 420. Center fixing plate; 421. Rotating bushing. Detailed Implementation

[0041] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0042] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0043] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0044] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0045] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0046] Example 1: Figures 1-10An explosion-proof high-frequency spiral fog cannon is shown, comprising a housing assembly 100, a high-frequency transmission assembly 200, and a fixing assembly 400. The high-frequency transmission assembly 200 is assembled inside the housing assembly 100 via the fixing assembly 400. The high-frequency transmission assembly 200 includes a transmission shaft tube 210, a high-pressure nozzle 220, an impeller 230, and a water inlet connector 240. The high-pressure nozzle 220 is fixedly assembled to the front end of the transmission shaft tube 210 in a T-shaped three-way structure, so that the high-pressure nozzle 220 and the transmission shaft tube 210 rotate synchronously. The rear end of the transmission shaft tube 210 is connected to the water inlet connector 240 and can supply water to the high-pressure nozzle 220. The impeller 230 is assembled on the transmission shaft tube 210 and can rotate synchronously with the transmission shaft tube 210. The impeller 230 is used to blow airflow towards the high-pressure nozzle 220.

[0047] The fixing assembly 400 includes a fixing spring group 410 and a central fixing plate 420 fixedly mounted on the transmission shaft tube 210. The fixing spring group 410 includes four sets of shock-absorbing suspension springs 411 mounted in a cross shape with the central fixing plate 420 as the center. The distal end of the shock-absorbing suspension spring 411 is mounted inside the housing assembly 100. At least two central fixing plates 420 are provided along the length direction of the transmission shaft tube 210 to stabilize the high-frequency transmission assembly 200.

[0048] With the plane formed by the intersection of the axis of the drive shaft tube 210 and the axis of the high-pressure nozzle 220 as the symmetry plane 300, the positions of the high-pressure nozzles 250 at both ends of the high-pressure nozzle 220 are centrally symmetrical about this symmetry plane 300, and in the working state, the jet direction of the high-pressure nozzles 250 forms an angle of 5-10° with the symmetry plane 300 (for reference). Figure 4 ).

[0049] The explosion-proof high-frequency spiral fog cannon of the present invention is a dust suppression device used in coal mine collection, transportation and storage. The high-frequency transmission component 200 is suspended in the housing component 100 by a shock-absorbing suspension spring 411. The high-pressure nozzle 220 of the high-frequency transmission component 200 drives the high-pressure nozzle 220 to rotate at high frequency by a forced mutual pushing force.

[0050] Combination Figure 5As shown, in some embodiments, the high-pressure nozzle 220 in the high-frequency transmission assembly 200 can be equipped with three high-pressure nozzles 250 at both ends to enhance the mutual thrust and the dust suppression effect of water mist spraying. This invention uses the impact force of high-frequency water flow to drive the high-pressure nozzle 220 to rotate, forming a high-frequency water spiral mist pile. The water mist produced is a solid, solid mist. In contrast, conventional fog cannons on the market are cone-shaped, with nozzles arranged only around the circumference of the cone, resulting in a hollow cone-shaped mist with a small coverage area, failing to meet actual standards. Alternatively, some may install nozzles in the center of the cone, but this results in a non-solid mist and reduces the wind transport effect.

[0051] It is worth noting that the explosion-proof high-frequency spiral fog cannon of the present invention no longer needs to use high-cost electric drive. It uses shock-absorbing suspension spring 411 to stabilize the impeller 230 and other factors that cause instability, reduce the air pressure of the equipment and the surrounding environment, realize a safer and more stable mining machinery, and improve the adsorption rate of water mist on dust, thereby improving the dust suppression effect and making full use of water resources.

[0052] Combination Figure 4 As shown, specifically, the shock-absorbing suspension spring 411 has a spring assembly fixing end 412 and a spring assembly fixing end 413 respectively embedded at both ends. The spring assembly fixing end 412 is connected to the annular surface of the central fixing plate 420, and the spring assembly fixing end 413 is connected to the spring assembly fixing opening 101 of the housing assembly 100. More specifically, the spring assembly fixing end 413 and the spring assembly fixing end 412 can be assembled by means of, for example, a threaded structure.

[0053] In this invention, a rotating bushing 421 and a bearing are provided between the central fixed disk 420 and the transmission shaft tube 210, so that the central fixed disk 420 and the transmission shaft tube 210 are in a rotational engagement relationship, so that the fixed component 400 does not participate in the rotation of the high-frequency transmission component 200.

[0054] Combination Figure 2 and Figure 3 As shown, in this invention, the housing assembly 100 includes a cylindrical housing 110, a support base 120, a strong magnetic fixing plate 130, a strong magnetic fixing rod 140, and a protective net 150. The transmission shaft tube 210 is installed inside the cylindrical housing 110, aligned with the axis of the cylindrical housing 110. The cylindrical housing 110 is installed on the support base 120 at a horizontal inclination angle of 5-10°. The strong magnetic fixing plate 130 and the strong magnetic fixing rod 140 are arranged on both sides of the support base 120. The protective net 150 is positioned opposite the spray direction of the high-pressure nozzle 220.

[0055] It should be noted that the cylindrical shell 110 also includes a water-passing ring 160 coaxially arranged therewith. The water-passing ring 160 is wrapped around the front end of the cylindrical shell 110 and integrally formed or fixedly assembled with the cylindrical shell 110. A plurality of high-pressure nozzles 161 are provided on the end face of the water-passing ring 160 facing the spray direction of the high-pressure nozzle 220. The high-pressure nozzles 161 spray outward perpendicular to the outer end face of the water-passing ring 160. The annular surface of the water-passing ring 160 is provided with a water inlet 162 for supplying water to the high-pressure nozzles 161. By setting the water-passing ring 160 and the high-pressure nozzles 161, the range of water mist sprayed from the high-frequency transmission assembly 200 can be effectively controlled and protected, while improving the water mist coverage area.

[0056] Combined with appendix Figure 2 As shown, the cross-section of the water-passing ring 160 where the high-pressure nozzle 161 is installed has four mounting slots, which fix the high-pressure nozzle 161 in the mounting slots and supply water through the water inlet 162.

[0057] And combined with the appendix Figure 3 As shown, the housing assembly 100 also includes a water inlet pipe 170 with a water inlet valve 171, the water inlet pipe 170 being used to supply water to the water inlet connector 240 and the water inlet 162.

[0058] Combined with appendix Figures 6-10 As shown, in some embodiments, the high-pressure nozzle 220 is a split structure, including a central T-shaped connector pipe 270 and detachable sleeves 260 on both sides.

[0059] The detachable sleeve 260 includes a sleeve body 261, a pipe shell 262, a filter element 263, and a manifold 264. The sleeve body 261 and the T-type connector pipe 270 are sealed together by a sealing element and a threaded structure. The filter element 263 can be embedded into the sleeve body 261 through the connection port of the sleeve body 261. The other end of the sleeve body 261 is provided with the manifold 264, which communicates with the outlet of the filter element 263. The high-pressure nozzle 250 is assembled on one side of the manifold 264 and jets water outward through the nozzle hole 254 on the sleeve body 261 corresponding to the high-pressure nozzle 250. An air gap is left between the high-pressure nozzle 250 and the nozzle hole 254.

[0060] Specific combination Figure 8 As shown, the high-pressure nozzle 250 includes a manifold connector 251, a cylindrical rotating joint 252, and a nozzle body 253. The nozzle body 253 forms a variable angle with the symmetry plane 300 through the cylindrical rotating joint 252 and can swing in the vertical plane of the symmetry plane 300. The high-pressure nozzle 250 supplies water to the nozzle body 253 through the manifold connector 251.

[0061] Since the axis of the nozzle body 253 in this invention forms a certain angle with the plane of symmetry 300, the high-pressure nozzle 250 drives the high-pressure nozzle tube to rotate at high frequency with the mutual pushing forced force when water is discharged. At the same time, it drives the transmission shaft tube 210 to rotate synchronously. The transmission shaft tube 210 is assembled at the center of the central fixed plate 420 through bearings, so the rotational resistance is small. As the mutual pushing forced force continuously generates rotational torque, the transmission shaft tube 210 generates rotational acceleration and thus accelerates the rotation. This results in a drive form that does not require electric drive or explosion-proof certification. At the same time, the rotation of the transmission shaft tube 210 drives the impeller 230 to rotate, which generates a blowing effect, increases the spray stroke of the high-pressure nozzle 250, and is beneficial to the atomization effect of water mist.

[0062] Combination Figure 7 and Figure 10 As shown, in order to enable the high-frequency transmission component 200 to respond quickly, the detachable sleeve 260 also includes a nozzle angle adjustment mechanism 280. The nozzle angle adjustment mechanism 280 includes an arc-shaped lever 281, a centrifugal ring 282, a trigger bar 283, and an end fixing ring 284. The centrifugal ring 282 is coaxially sleeved on the outside of the sleeve body 261 and can slide along the sleeve body 261. The end fixing ring 284 is disposed at the outer end of the sleeve body 261. The trigger bar 283 extends from the centrifugal ring 282 toward the end fixing ring 284. An oblique groove 285 is provided on the trigger bar 283. One end of the arc-shaped lever 281 is provided with a sliding part that can be embedded in the oblique groove 285 and slide in cooperation with the oblique groove 285. The other end is provided with a connecting part that is fixedly connected to the nozzle body 253.

[0063] When the centrifugal ring 282 moves toward the outer end of the sleeve body 261, the sliding part of the arc-shaped lever 281 can push the nozzle body 253 to rotate toward the symmetry plane 300 to reduce the included angle. When the centrifugal ring 282 moves toward the connection port of the sleeve body 261, the sliding part of the arc-shaped lever 281 can pull the nozzle body 253 to rotate away from the symmetry plane 300 to increase the included angle.

[0064] The aforementioned nozzle angle adjustment mechanism 280 can make the nozzle body 253 and the symmetry plane 300 form a large angle before the equipment is started, thereby increasing the mutual thrust force during startup, so that the high-pressure nozzle 220 can quickly reach the optimal speed. When the speed reaches the threshold, the angle is reduced so that the high-pressure nozzle 220 no longer accelerates, and only retains the mutual thrust force to maintain its speed, so as to further enhance the jet effect and facilitate the formation of solid water mist.

[0065] It is worth mentioning that in the structure of the high-pressure nozzle 250, the nozzle body 253 has only the degree of freedom to rotate around the axis of the cylindrical rotating joint 252 through the cylindrical rotating joint 252. Thus, the nozzle body 253 can avoid shaking during the angle change process, which is conducive to maintaining a stable rotation speed and maintaining a stable water mist output after the angle is fixed.

[0066] The end fixing ring 284 is provided with an elastic groove 286 corresponding to the front end of the trigger bar 283. The front end of the trigger bar 283 is provided with a locking head 287. When the centrifugal ring 282 moves to the outer end of the sleeve body 261 to the maximum stroke, the trigger bar 283 can be embedded in the elastic groove 286 through the locking head 287 to lock the position of the centrifugal ring 282.

[0067] In this invention, the centrifugal ring 282 is also provided with a reset slide button 288. After the equipment stops, the locking head 287 at the front end of the trigger bar 283 can be pulled out of the elastic slot 286 by pushing the reset slide button 288 to slide and reset the centrifugal ring 282 for the next use of the equipment. It can be imagined that the engagement of the elastic slot 286 and the locking head 287 only provides appropriate locking force to facilitate release. When the high-pressure nozzle 220 rotates at high speed, the locking head 287 tends to press against the elastic slot 286. Therefore, a locking structure with excessive locking force is not required. The locking form can be that grooves are opened on both sides of the front end of the locking head 287, and there is an elastic contact in the elastic slot 286. When the locking head 287 is inserted, the elastic contact is locked into the groove.

[0068] In addition, the centrifugal ring 282 slides relative to the sleeve body 261 due to the centrifugal force of the high-pressure nozzle 220 rotating at high speed. To improve the smoothness of sliding, a guide strip 2611 that cooperates with the centrifugal ring 282 is provided on the outer wall of the sleeve body 261, and the guide strip 2611 is embedded with balls to reduce friction. At the same time, grease can be applied to the guide strip 2611 to ensure the sliding effect.

[0069] Combination Figure 5 and Figure 8 As shown, the detachable sleeve 260 also includes an end cap 265, which includes an inner cover 2651, an outer cover 2652, and an air filter 2653 between them. The inner cover 2651 and the outer cover 2652 are rotatably fitted, and the inner cover 2651 and the outer cover 2652 are provided with vent holes 2654 that are offset from each other. Rotating the inner cover 2651 and the outer cover 2652 can allow the vent holes 2654 to connect or close the inner cavity of the sleeve body 261 with the outside.

[0070] Because there is an air gap between the high-pressure nozzle 250 and the nozzle orifice 254, and the front end of the nozzle body 253 can be set within the air gap range of the nozzle orifice 254, when the nozzle body 253 ejects high-speed fluid, a low-pressure zone will be formed within the air gap range according to Bernoulli's principle. As a result, the air inside the casing body 261 will be quickly forced into the air gap range, thereby enhancing the impact atomization effect of the airflow ejected by the nozzle body 253. Considering the dusty environment of the mine, an air filter 2653 is set to filter dust. Of course, a cover can also be set at the high-pressure nozzle 250. When the machine is stopped, the high-pressure nozzle and the air gap can be closed by the cover to greatly extend the maintenance cycle of the equipment. At the same time, the detachable structure of the equipment is also conducive to cleaning the inside of the casing body 261, extending the service life of the equipment, and making maintenance convenient.

[0071] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An explosion-proof high-frequency spiral fog cannon, comprising a housing assembly, a high-frequency transmission assembly, and a fixing assembly, wherein the high-frequency transmission assembly is assembled within the housing assembly via the fixing assembly, characterized in that... The high-frequency transmission assembly includes a transmission shaft tube, a high-pressure nozzle, an impeller, and a water inlet connector. The high-pressure nozzle is fixedly mounted to the front end of the transmission shaft tube in the middle with a T-shaped three-way structure so that the high-pressure nozzle rotates synchronously with the transmission shaft tube. The rear end of the transmission shaft tube is connected to the water inlet connector and can supply water to the high-pressure nozzle. The impeller is mounted on the transmission shaft tube and can rotate synchronously with the transmission shaft tube. The impeller is used to blow airflow towards the high-pressure nozzle. The fixing assembly includes a fixing spring group and a central fixing plate fixedly mounted on the transmission shaft tube. The fixing spring group includes four sets of shock-absorbing suspension springs mounted in a cross shape around the central fixing plate. The distal ends of the shock-absorbing suspension springs are mounted inside the housing assembly. At least two central fixing plates are provided along the length of the transmission shaft tube to stabilize the high-frequency transmission assembly. The plane formed by the intersection of the axis of the drive shaft tube and the axis of the high-pressure nozzle is taken as the plane of symmetry. The positions of the high-pressure nozzles at both ends of the high-pressure nozzle are centrally symmetrical about this plane of symmetry. In the working state, the jet direction of the high-pressure nozzle is at an angle of 5-10° with this plane of symmetry.

2. The explosion-proof high-frequency spiral fog cannon according to claim 1, characterized in that, The shock-absorbing suspension spring has a spring assembly fixing end and a spring assembly fixing end embedded at both ends, wherein the spring assembly fixing end is connected to the annular surface of the central fixing plate, and the spring assembly fixing end is connected to the spring assembly fixing opening of the housing assembly.

3. The explosion-proof high-frequency spiral fog cannon according to claim 1, characterized in that, A rotating bushing and bearing are provided between the central fixed plate and the transmission shaft tube.

4. The explosion-proof high-frequency spiral fog cannon according to claim 1, characterized in that, The housing assembly includes a cylindrical housing, a support base, a strong magnetic fixing plate, a strong magnetic fixing rod, and a protective net. The drive shaft tube is installed inside the cylindrical housing, aligned with the axis of the cylindrical housing. The cylindrical housing is installed on the support base at a horizontal inclination angle of 5-10°. The strong magnetic fixing plate and the strong magnetic fixing rod are located on both sides of the support base. The protective net is positioned facing the spray direction of the high-pressure nozzle.

5. The explosion-proof high-frequency spiral fog cannon according to claim 4, characterized in that, The cylindrical shell also includes a water-passing ring coaxially arranged therewith. The water-passing ring is wrapped around the front end of the cylindrical shell and integrally formed or fixedly assembled with the cylindrical shell. A plurality of high-pressure nozzles are provided on one end face of the water-passing ring facing the direction of high-pressure nozzle injection. The high-pressure nozzles spray outward perpendicular to the outer end face of the water-passing ring. The ring surface of the water-passing ring is provided with a water inlet for supplying water to the high-pressure nozzles.

6. The explosion-proof high-frequency spiral fog cannon according to claim 4, characterized in that, The housing assembly also includes a water inlet pipe with a water inlet valve, which is used to supply water to the water inlet connector and the water inlet.

7. The explosion-proof high-frequency spiral fog cannon according to claim 1, characterized in that, The high-pressure nozzle has a split structure and includes a central T-shaped connector pipe and detachable sleeves on both sides. The detachable sleeve includes a sleeve body, a pipe shell, a filter element, and a manifold. The sleeve body and the T-type connector pipe can be sealed and connected by a sealing element and a threaded structure. The filter element can be embedded into the sleeve body through the connection port of the sleeve body. The manifold is provided at the other end of the filter element inside the sleeve body, which is connected to the outlet of the filter element. The high-pressure nozzle is assembled on one side of the manifold and sprays water outward through the spray hole opened on the sleeve body corresponding to the high-pressure nozzle. An air gap is left between the high-pressure nozzle and the spray hole.

8. The explosion-proof high-frequency spiral fog cannon according to claim 7, characterized in that, The high-pressure nozzle includes a manifold connector, a cylindrical rotating joint, and a nozzle body. The nozzle body forms a variable angle with the plane of symmetry via the cylindrical rotating joint and can swing within the vertical plane of the plane of symmetry. The high-pressure nozzle supplies water to the nozzle body via the manifold connector.

9. The explosion-proof high-frequency spiral fog cannon according to claim 8, characterized in that, The detachable sleeve also includes a nozzle angle adjustment mechanism, which includes an arc-shaped lever, a centrifugal ring, a trigger bar, and an end fixing ring. The centrifugal ring is coaxially sleeved on the outside of the sleeve body and can slide along the sleeve body. The end fixing ring is located at the outer end of the sleeve body. The trigger bar extends from the centrifugal ring toward the end fixing ring and has an oblique groove. One end of the arc-shaped lever has a sliding part that can be embedded in the oblique groove and slide in cooperation with the oblique groove, and the other end has a connecting part that is fixedly connected to the nozzle body. When the centrifugal ring moves toward the outer end of the sleeve body, the sliding part of the arc-shaped lever can push the nozzle body to rotate toward the symmetry plane to reduce the included angle. When the centrifugal ring moves toward the connection port of the sleeve body, the sliding part of the arc-shaped lever can pull the nozzle body to rotate away from the symmetry plane to increase the included angle. The end fixing ring is provided with an elastic groove corresponding to the front end of the trigger bar, and the front end of the trigger bar is provided with a locking head. When the centrifugal ring moves to the outer end of the sleeve body to the maximum stroke, the trigger bar can be embedded in the elastic groove by the locking head to lock the position of the centrifugal ring.

10. The explosion-proof high-frequency spiral fog cannon according to claim 9, characterized in that, The detachable sleeve also includes an end cap, which includes an inner cover, an outer cover, and an air filter between them. The inner cover and the outer cover are rotatably fitted together, and the inner cover and the outer cover are provided with vent holes that are offset from each other. Rotating the inner cover and the outer cover can allow the vent holes to connect or close the inner cavity of the sleeve body to the outside.

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