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] The present application relates to dust suppression and reduction equipment for coal mining, transportation and storage, in particular to an explosion-proof high-frequency spiral fog gun machine. BACKGROUND

[0002] The mine site includes the mining environment under the mine, and the surrounding air is filled with a large amount of coal dust, gas and other flammable materials, which is harmful to the body of the workers and has potential safety hazards, so it is necessary to carry out full-area dust suppression and reduction operation on the dust in the air to make the coal dust fall and play the role of air governance to eliminate safety hazards.

[0003] However, the safety of the equipment under the mine is particularly important, and most of the existing dust reduction fog gun machines are prone to static electricity, and need to use a motor to forcibly atomize water, and the rotor electrical equipment used by the equipment needs to use effective explosion-proof facilities, which has high production cost and needs explosion-proof certificate. SUMMARY

[0004] The purpose of the present application is to provide an explosion-proof high-frequency spiral fog gun machine, which does not produce static electricity hazards, does not use a motor to forcibly atomize water, uses effective explosion-proof measures, does not need an explosion-proof certificate, reduces production cost, improves production efficiency, and realizes a fog gun machine that can be used in the mine without an explosion-proof certificate.

[0005] To achieve the above-mentioned purpose of the application, the following technical solutions are adopted: The explosion-proof high-frequency spiral fog gun machine provided by the present application 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, and characterized in that the high-frequency transmission assembly comprises a transmission shaft pipe, a high-pressure nozzle, an impeller and a water inlet joint, wherein the high-pressure nozzle is fixedly assembled at the front end of the transmission shaft pipe in a T-shaped three-way structure, so that the high-pressure nozzle and the transmission shaft pipe rotate synchronously, the rear end of the transmission shaft pipe is communicated with the water inlet joint and can supply water to the high-pressure nozzle, the impeller is assembled on the transmission shaft pipe and can rotate synchronously with the transmission shaft pipe, and the impeller is used to blow air flow to the direction of the high-pressure nozzle. The fixing assembly comprises a fixed spring group and a center fixing disc fixedly assembled on the transmission shaft pipe, the fixed spring group comprises four groups of shock-absorbing suspension springs assembled on the center fixing disc in a cross shape, the distal ends of the shock-absorbing suspension springs are assembled in the shell assembly, and at least two center fixing discs are arranged along the length direction of the transmission shaft pipe to stabilize the high-frequency transmission assembly. The axis of the transmission shaft tube intersects with the axis of the high-pressure nozzle to form a plane as a symmetry plane, the high-pressure nozzles at both ends of the high-pressure nozzle are centrally symmetric about the symmetry plane, and in the working state, the jet direction of the high-pressure nozzles forms an angle of 5-10° with the symmetry plane.

[0006] As a preferred technical solution of the present application, the shock-absorbing suspension spring is respectively embedded with a spring group fixed end and a spring group fixed end at both ends, wherein the spring group fixed end is connected to the annular surface of the center fixed disc, and the spring group fixed end is connected to the spring group fixed opening of the shell assembly.

[0007] As a preferred technical solution of the present application, the center fixed disc and the transmission shaft tube are provided with a rotating shaft sleeve and a bearing.

[0008] As a preferred technical solution of the present application, the shell assembly includes a cylindrical shell, a support base, a strong magnetic fixed plate, a strong magnetic fixed rod, and a protective net, wherein the transmission shaft tube is installed in the cylindrical shell with the axis of the cylindrical shell aligned, the cylindrical shell is installed on the support base with a horizontal inclination angle of 5-10°, the strong magnetic fixed plate and the strong magnetic fixed rod are arranged on both sides of the support base, and the protective net is arranged opposite to the jet direction of the high-pressure nozzle.

[0009] As a preferred technical solution of the present application, the cylindrical shell further includes a water passing ring coaxially arranged with the cylindrical shell, the water passing ring is wrapped around the front end of the cylindrical shell and is integrally formed or fixedly assembled with the cylindrical shell, a plurality of high-pressure nozzles are arranged on the side end face of the water passing ring facing the jet direction of the high-pressure nozzle, the high-pressure nozzles jet outwardly perpendicular to the outer end face of the water passing ring, and the annular surface of the water passing ring is provided with a water inlet for supplying water to the high-pressure nozzles. As a preferred technical solution of the present application, the shell assembly further includes a water inlet pipeline with a water inlet valve, the water inlet pipeline is used to supply water to the water inlet joint and the water inlet.

[0010] As a preferred technical solution of the present application, the high-pressure nozzle is of a split structure and includes a middle T-shaped joint pipe and detachable sleeve pipes arranged on both sides of the T-shaped joint pipe. The detachable sleeve pipe includes a sleeve pipe body, a pipe shell, a filter element, and a flow collecting pipe, wherein the sleeve pipe body and the T-shaped joint pipe can be sealingly connected through a sealing element and a threaded structure, the filter element can be embedded in the sleeve pipe body from the connecting port of the sleeve pipe body, the flow collecting pipe is arranged in the sleeve pipe body at the other end of the filter element and communicates with the water outlet of the filter element, the high-pressure nozzle is assembled on one side of the flow collecting pipe and jets outwardly through the nozzle hole formed on the sleeve pipe body corresponding to the high-pressure nozzle, and an air gap is left between the high-pressure nozzle and the nozzle hole.

[0011] As a preferred technical scheme of the present application, the high-pressure nozzle comprises a manifold joint, a cylindrical rotating joint, and a nozzle body, the nozzle body is connected to the symmetry plane through the cylindrical rotating joint at a variable angle, and can swing in the vertical plane of the symmetry plane, and the high-pressure nozzle supplies water to the nozzle body through the manifold joint.

[0012] As a preferred technical scheme of the present application, the detachable sleeve further comprises a nozzle angle adjusting mechanism, the nozzle angle adjusting mechanism comprises an arc-shaped lever, a centrifugal ring, a trigger strip, and an end fixing ring, the centrifugal ring is coaxially sleeved outside the sleeve body and can slide along the sleeve body, the end fixing ring is arranged at the outer end of the sleeve body, the trigger strip extends from the centrifugal ring towards the end fixing ring, an inclined sliding groove is formed in the trigger strip, one end of the arc-shaped lever is provided with a sliding part capable of being embedded in the inclined sliding groove and sliding in cooperation with the inclined sliding groove, and the other end of the arc-shaped lever is provided with a connecting part fixedly connected to the nozzle body. When the centrifugal ring moves towards the outer end of the sleeve body, the sliding part of the arc-shaped lever can push the nozzle body to rotate towards the symmetry plane to reduce the included angle, and when the centrifugal ring moves towards the connecting 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 clamping groove corresponding to the front end of the trigger strip, and the front end of the trigger strip is correspondingly provided with a locking clamping head, when the centrifugal ring moves to the maximum stroke towards the outer end of the sleeve body, the trigger strip can be embedded in the elastic clamping groove through the locking clamping head to lock the position of the centrifugal ring.

[0013] As a preferred technical scheme of the present application, the detachable sleeve further comprises an end cover, the end cover comprises an inner cover body, an outer cover body, and an air filter screen between the inner cover body and the outer cover body, the inner cover body and the outer cover body are rotationally connected, and a ventilation hole is formed in the inner cover body and the outer cover body in a staggered manner, rotating the inner cover body and the outer cover body can make the ventilation hole communicate or close the inner cavity of the sleeve body with the outside.

[0014] Compared with the prior art, the above one or more technical schemes have the following beneficial effects: In the present application, the high-frequency transmission assembly is assembled in the shell assembly by using the damping suspension spring, and the high-pressure nozzle is driven to rotate at high frequency by the forced mutual pushing force of the high-pressure nozzle, so that the high-pressure nozzle is rotated by the impact force of the high-frequency water flow to form a high-frequency water spiral mist column, and the high-cost electric drive is no longer needed, the instability caused by the damping suspension spring, the impeller and other factors is alleviated, the air pressure of the equipment and the surrounding air is reduced, the mine mechanical equipment is more safe and stable, the adsorption rate of the water mist to the dust is improved, the dust reduction effect is improved, and the water source can be fully utilized. In another aspect, the application adopts a split high-pressure nozzle structure, can quickly assemble and replace the filter core, is convenient to use, and is provided with a nozzle angle adjusting mechanism (without using a motor and without needing an explosion-proof certificate) in the high-pressure nozzle, can make the jet flow deflection angle of the high-pressure nozzle larger before starting of the equipment, can strengthen the mutual pushing effect, can quickly start the high-pressure nozzle to rotate at a high frequency, can make the jet flow deflection angle of the high-pressure nozzle smaller after stable rotation, can maintain a part of the mutual pushing force, and can strengthen the spray dust suppression effect through the jet flow to spray water mist farther. In addition, the application can control and protect the water mist range of the high-pressure nozzle through the water passing circular ring, and can improve the water mist coverage area; and the water mist sprayed by the application is solid water mist, compared with the conical cylinder water mist generally sprayed by the existing technology, the dust suppression effect is better, and the coverage area is larger. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings constituting a part of the specification of the application are used to provide further understanding of the application, the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute improper limitation on the application.

[0016] Figure 1 is a working state schematic diagram of the application.

[0017] Figure 2 is a front view of the application.

[0018] Figure 3 is a side view of the application.

[0019] Figure 4 is a structure schematic diagram of a fixed assembly in the application.

[0020] Figure 5 is a structure schematic diagram of a high-frequency transmission assembly in the application.

[0021] Figure 6 is a structure schematic diagram of a high-pressure nozzle in some embodiments of the application.

[0022] Figure 7 is a structure schematic diagram of a detachable sleeve in some embodiments of the application.

[0023] Figure 8 is Figure 7 a cross-sectional structure schematic diagram of the detachable sleeve in the application.

[0024] Figure 9 is Figure 7 a structure schematic diagram of an end fixed ring in the application.

[0025] Figure 10 is a structure schematic diagram of a nozzle angle adjusting mechanism in some embodiments of the application.

[0026] Fig. 1 is a schematic diagram of the high-frequency transmission assembly of the present application. 100, housing assembly, 200, high-frequency transmission assembly, 300, symmetry plane, 400, fixing assembly; 101, spring group fixing hole, 110, cylindrical housing, 120, support base, 130, strong magnetic fixing plate, 140, strong magnetic fixing rod, 150, protective net, 160, water passage ring, 161, high-pressure spray head, 162, water inlet, 170, water inlet pipeline, 171, water inlet valve; 210, transmission shaft tube, 220, high-pressure spray tube, 230, impeller, 240, water inlet joint, 250, high-pressure nozzle, 251, manifold joint, 252, columnar rotating joint, 253, nozzle body, 254, spray hole, 260, detachable sleeve, 261, sleeve body, 2611, guide strip, 262, tube shell, 263, filter element, 264, manifold, 265, end cover, 2651, inner cover body, 2652, outer cover body, 2653, air filter screen, 2654, air hole, 270, T-shaped joint pipe, 280, nozzle angle adjusting mechanism, 281, arc-shaped lever, 282, centrifugal ring, 283, trigger strip, 284, end fixed ring, 285, inclined sliding groove, 286, elastic clamping groove, 287, locking clamping head, 288, reset sliding knob; 410, fixed spring group, 411, shock-absorbing suspension spring, 412, spring group fixed end, 413, spring group fixed end, 420, center fixing disc, 421, rotating shaft sleeve. DETAILED DESCRIPTION

[0027] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should fall within the protection scope of the present application.

[0028] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0029] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0030] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific situation.

[0031] In addition, the terms "mounting", "setting", "provided with", "connected", "connected", "sleeved" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0032] Embodiment 1: An explosion-proof high-frequency spiral fog gun machine as shown in Figures 1-10 The high-frequency transmission assembly 200 includes a transmission shaft tube 210, a high-pressure nozzle 220, an impeller 230, and a water inlet joint 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 in the middle, 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 communicated with the water inlet joint 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 air flow to the high-pressure nozzle 220; The fixing assembly 400 includes a fixing spring group 410 and a center fixing disc 420 fixedly assembled on the transmission shaft tube 210. The fixing spring group 410 includes four groups of shock-absorbing suspension springs 411 assembled in a cross shape around the center fixing disc 420. The distal end of the shock-absorbing suspension spring 411 is assembled in the housing assembly 100. At least two center fixing discs 420 are arranged along the length direction of the transmission shaft tube 210 to stabilize the high-frequency transmission assembly 200; A plane formed by the axis of the transmission shaft tube 210 intersecting the axis of the high-pressure nozzle 220 is the symmetry plane 300, the high-pressure nozzles 250 at both ends of the high-pressure nozzle 220 are arranged to be centrally symmetric about the 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 (see Figure 4 ).

[0033] The explosion-proof high-frequency spiral fog cannon machine of the present application is a dust suppression and reduction equipment used in coal mining, transportation and storage. The high-frequency transmission assembly 200 is suspended in the shell assembly 100 by the damping suspension spring 411, and the high-pressure nozzle 220 of the high-frequency transmission assembly 200 drives the high-pressure nozzle 220 to rotate at high frequency by forced mutual pushing force. As shown in Figure 5 In some embodiments, three high-pressure nozzles 250 can be arranged at both ends of the high-pressure nozzle 220 in the high-frequency transmission assembly 200 to enhance the mutual pushing force and the water mist spraying dust reduction effect. The high-frequency water spiral fog column formed by the rotation of the high-pressure nozzle 220 driven by the high-frequency water impact force, and the water mist formed by the high-frequency water spiral fog column is solid, while the conventional fog cannon machine in the market is in the shape of a cone cylinder, and the spray head is arranged in one circle around the circumference of the cone cylinder, and the water mist is hollow cone-shaped, which has a small coverage area and cannot meet the actual standard. Or some install the spray head in the center of the cone cylinder, which has the disadvantage of hollow water mist and reduced wind power transportation effect.

[0034] It is worth noting that the explosion-proof high-frequency spiral fog cannon machine of the present application no longer needs to use high-cost electric drive, and utilizes the damping suspension spring 411 to stabilize the impeller 230 and other factors to slow down the equipment and the surrounding air pressure, to realize more safe and stable mining mechanical equipment, and to improve the water mist adsorption rate on dust to improve the dust reduction effect and to fully utilize the water source.

[0035] As shown in Figure 4 Specifically, the damping suspension spring 411 is respectively embedded with a spring group fixed end 412 and a spring group fixed end 413 at both ends, wherein the spring group fixed end 412 is connected to the annular surface of the center fixed disc 420, and the spring group fixed end 413 is connected to the spring group fixed hole 101 of the shell assembly 100. More specifically, the assembly mode of the spring group fixed end 413 and the spring group fixed end 412 can be fixed and assembled by, for example, a threaded structure.

[0036] In the present application, the center fixed disc 420 and the transmission shaft tube 210 are provided with a rotating shaft sleeve 421 and a bearing, so that the center fixed disc 420 and the transmission shaft tube 210 are in a rotating fit relationship, so that the fixed assembly 400 does not participate in the rotating action of the high-frequency transmission assembly 200.

[0037] Combine Figure 2 and Figure 3 As shown, in the present invention, the shell assembly 100 includes a cylindrical shell 110, a support base 120, a strong magnetic fixing plate 130, a strong magnetic fixing rod 140 and a protective net 150, wherein the drive shaft tube 210 is installed in the cylindrical shell 110 in alignment with the axis of the cylindrical shell 110, and the cylindrical shell 110 is docked and 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, and the protective net 150 is arranged opposite to the injection direction of the high-pressure nozzle 220.

[0038] It should be noted that the cylindrical shell 110 also includes a water-passing ring 160 coaxially arranged therewith, and the water-passing ring 160 is wrapped around the front end of the cylindrical shell 110 and is integrally formed or fixedly assembled with the cylindrical shell 110. The end face of the water-passing ring 160 facing the injection direction of the high-pressure nozzle 220 is provided with multiple high-pressure nozzles 161, and the high-pressure nozzles 161 are perpendicular to the outer end face of the water-passing ring 160 and spray outward, and 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 arranging the water-passing ring 160 and the high-pressure nozzles 161, the water mist ejected from the high-frequency transmission component 200 can be effectively controlled and protected in range, while the water mist coverage area can be increased.

[0039] Combined with attachment Figure 2 As shown, four mounting holes are left on the cross section of the water-passing ring 160 for mounting the high-pressure nozzle 161 , so that the high-pressure nozzle 161 is fixed in the mounting holes and supplied with water through the water inlet 162 .

[0040] And combined with the Figure 3 As shown, the housing assembly 100 further includes a water inlet pipe 170 with a water inlet valve 171 , and the water inlet pipe 170 is used to supply water to the water inlet connector 240 and the water inlet 162 .

[0041] Combined with attachment Figures 6-10 As shown, in some embodiments, the high-pressure nozzle 220 is a split structure, and includes a middle T-shaped joint pipe 270 and detachable sleeves 260 provided on both sides thereof; The detachable sleeve 260 comprises a sleeve body 261, a pipe shell 262, a filter core 263 and a collecting pipe 264, wherein the sleeve body 261 is connected with the T-shaped joint pipe 270 through a sealing piece and a threaded structure, the filter core 263 can be embedded into the sleeve body 261 through a connecting port of the sleeve body 261, the collecting pipe 264 is arranged at the other end of the sleeve body 261 and communicates with the water outlet of the filter core 263, the high-pressure nozzle 250 is arranged at one side of the collecting pipe 264 and sprays water through the jet hole 254 of the sleeve body 261, and an air gap is left between the high-pressure nozzle 250 and the jet hole 254.

[0042] Specifically combined Figure 8 As shown, the high-pressure nozzle 250 comprises a collecting pipe joint 251, a cylindrical rotating joint 252 and a nozzle body 253, the nozzle body 253 is arranged at 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, and the high-pressure nozzle 250 supplies water to the nozzle body 253 through the collecting pipe joint 251.

[0043] Since the axis of the nozzle body 253 is at a certain angle with the symmetry plane 300, the high-pressure nozzle 250 drives the high-pressure nozzle to rotate at a high frequency under the mutual pushing force during water outlet, and simultaneously drives the transmission shaft pipe 210 to rotate synchronously, the transmission shaft pipe 210 is arranged at the center of the center fixed disc 420 through a bearing, so that the rotating resistance is small, the rotating torque is continuously generated under the mutual pushing force, the transmission shaft pipe 210 generates rotating acceleration and further accelerates rotation, thereby generating a driving form which does not need power driving and does not need explosion-proof certification, and simultaneously the transmission shaft pipe 210 rotates to drive the impeller 230 to rotate and generate blowing effect, which increases the spraying stroke of the high-pressure nozzle 250 and is beneficial to the atomization effect of the water mist.

[0044] Combined Figure 7 And Figure 10 As shown, in order to enable the high-frequency transmission assembly 200 to respond quickly, the detachable sleeve 260 further comprises a nozzle angle adjusting mechanism 280, the nozzle angle adjusting mechanism 280 comprises an arc-shaped pulling rod 281, a centrifugal ring 282, a trigger strip 283 and an end fixed ring 284, the centrifugal ring 282 is coaxially arranged outside the sleeve body 261 and can slide along the sleeve body 261, the end fixed ring 284 is arranged at the outer end of the sleeve body 261, the trigger strip 283 extends from the centrifugal ring 282 towards the end fixed ring 284, an inclined sliding groove 285 is arranged on the trigger strip 283, one end of the arc-shaped pulling rod 281 is provided with a sliding part which can be embedded into the inclined sliding groove 285 and slide in cooperation with the inclined sliding groove 285, and the other end is provided with a connecting part which is fixedly connected to the nozzle body 253. When the centrifugal ring 282 moves towards 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 towards the symmetry plane 300 to reduce the included angle, and when the centrifugal ring 282 moves towards the connecting 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 expand the included angle; The nozzle angle adjusting mechanism 280 described above can make the nozzle body 253 have a larger included angle with the symmetry plane 300 before the device is started, thereby increasing the mutual pushing force at the time of starting, so that the high-pressure nozzle 220 quickly reaches the optimal rotating speed, and when the rotating speed reaches a threshold value, the included angle is reduced so that the high-pressure nozzle 220 no longer accelerates, and only the mutual pushing force for maintaining the rotating speed is reserved to further enhance the jet flow effect, which is beneficial to forming solid and solid water mist.

[0045] It is worth mentioning that the structure of the high-pressure nozzle 250 makes the nozzle body 253 have only the freedom of rotating around the axis of the cylindrical rotating joint 252, so that the nozzle body 253 can avoid shaking during the angle change, which is beneficial to maintaining stable rotation acceleration, and maintaining stable water mist output after the angle is fixed.

[0046] The end fixing ring 284 is provided with an elastic clamping groove 286 corresponding to the front end of the trigger bar 283, and the front end of the trigger bar 283 is correspondingly provided with a locking clamping head 287. When the centrifugal ring 282 moves to the maximum stroke towards the outer end of the sleeve body 261, the trigger bar 283 can be locked in the position of the centrifugal ring 282 by embedding the locking clamping head 287 into the elastic clamping groove 286.

[0047] In the present application, the centrifugal ring 282 is further provided with a reset slide button 288. After the device is stopped, the locking clamping head 287 of the front end of the trigger bar 283 can be pulled out of the elastic clamping groove 286 by pushing the reset slide button 288 to reset the sliding of the centrifugal ring 282, so as to be ready for the next use of the device. It can be conceived that the embedding of the elastic clamping groove 286 and the locking clamping head 287 only provides appropriate locking force to facilitate tripping. When the high-pressure nozzle 220 rotates at high speed, the locking clamping head 287 tends to abut against the elastic clamping groove 286, so that a locking structure with excessive locking force is not required. The locking form can be that recesses are formed on both sides of the front end of the locking clamping head 287, and the elastic clamping groove 286 has an elastic contact head. When the locking clamping head 287 is embedded, the elastic contact head is clamped into the recess to achieve locking.

[0048] In addition, the centrifugal ring 282 slides relative to the sleeve body 261 under the centrifugal effect of high-speed rotation of the high-pressure nozzle 220. In order to improve the smoothness during sliding, a guide strip 2611 matched with the centrifugal ring 282 is arranged on the outer wall of the sleeve body 261, and the guide strip 2611 is embedded with a ball to reduce friction, and at the same time, grease can be applied to the guide strip 2611 to ensure the sliding effect.

[0049] In combination Figure 5 and Figure 8 As shown in Figs. 7 and 8, the detachable sleeve 260 further comprises an end cover 265, which comprises an inner cover body 2651, an outer cover body 2652, and an air filter screen 2653 therebetween. The inner cover body 2651 and the outer cover body 2652 are rotationally matched, and the inner cover body 2651 and the outer cover body 2652 are offsetly provided with air holes 2654. Rotation of the inner cover body 2651 and the outer cover body 2652 can make the air holes 2654 communicate or close the inner cavity of the sleeve body 261 with the outside.

[0050] Since the high-pressure nozzle 250 and the spray hole 254 are left with an air gap, and the front end of the nozzle body 253 can be arranged in the air gap range of the spray hole 254, when the nozzle body 253 sprays high-speed fluid, according to Bernoulli's principle, a low-pressure area will be formed in the air gap range, so that the air in the sleeve body 261 will be quickly pressed into the air gap range, thereby strengthening the impact atomization effect when the nozzle body 253 sprays the airflow. Considering the dust environment of the mine, the air filter screen 2653 is arranged to filter the dust. Of course, a cover can also be arranged at the high-pressure nozzle 250. When the equipment is stopped, the high-pressure nozzle and the air gap are closed by the cover, so as to greatly prolong the maintenance period of the equipment. At the same time, the detachable structure of the equipment is also conducive to cleaning the inside of the sleeve body 261, prolonging the service life of the equipment, and facilitating maintenance.

[0051] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacements or changes to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

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 in the housing assembly through 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 joint. The middle portion of the high-pressure nozzle is fixedly assembled to the front end of the transmission shaft tube with a T-shaped three-way structure, so that the high-pressure nozzle and the transmission shaft tube rotate synchronously. The rear end of the transmission shaft tube is connected to the water inlet joint and can supply water to the high-pressure nozzle. The impeller is assembled on the transmission shaft tube and can rotate synchronously with the transmission shaft tube. The impeller is used to blow air toward 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 groups of shock-absorbing suspension springs mounted on the central fixing plate in a cross shape with the central fixing plate as the center. The distal ends of the shock-absorbing suspension springs are mounted in 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 the symmetry plane. The high-pressure nozzles at both ends of the high-pressure nozzle are arranged in a centrally symmetrical position about the symmetry plane, and in the working state, the jet direction of the high-pressure nozzle forms an angle of 5-10° with the symmetry plane.

2. The explosion-proof high-frequency spiral fog cannon according to claim 1, characterized in that: The two ends of the shock-absorbing suspension spring are respectively embedded with a spring group fixed end and a spring group fixed end, wherein the spring group fixed end is connected to the annular surface of the central fixed disk, and the spring group fixed end is connected to the spring group fixed opening of the housing assembly.

3. The explosion-proof high-frequency spiral fog cannon according to claim 1 is characterized in that: A rotating shaft sleeve and a bearing are provided between the central fixed disk and the transmission shaft tube.

4. The explosion-proof high-frequency spiral fog cannon according to claim 1, characterized in that: The shell assembly includes a cylindrical shell, a support base, a strong magnetic fixing plate, a strong magnetic fixing rod and a protective net, wherein the transmission shaft tube is installed in the cylindrical shell with the axis of the cylindrical shell aligned, and the cylindrical shell is docked and 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, and the protective net is arranged opposite to the injection 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 wraps around the front end of the cylindrical shell and is integrally formed or fixedly assembled with the cylindrical shell, and a plurality of high-pressure nozzles are provided on the end face of the water-passing ring facing the injection direction of the high-pressure nozzle, and the high-pressure nozzles spray outward perpendicularly to the outer end face of the water-passing ring, and the annular 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 shell assembly further comprises a water inlet pipe with a water inlet valve, and the water inlet pipe is used to supply water to the water inlet joint and the water inlet.

7. The explosion-proof high-frequency spiral fog cannon according to claim 1, characterized in that: The high-pressure nozzle is a split structure, and includes a central T-shaped joint pipe and detachable sleeves arranged on both sides; The detachable sleeve includes a sleeve body, a tube shell, a filter element and a manifold, wherein the sleeve body and the T-joint pipe can be sealed and connected by a seal and a threaded structure, the filter element can be embedded in the sleeve body through the connection port of the sleeve body, and the sleeve body is provided with the manifold connected to the water outlet of the filter element at the other end of the filter element, the high-pressure nozzle is assembled on one side of the manifold and sprays outward through the spray hole opened on the sleeve body corresponding to the high-pressure nozzle, and 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 joint, a columnar rotating joint and a nozzle body. The nozzle body forms a variable angle with the symmetry plane through the columnar rotating joint and can swing in a vertical plane of the symmetry plane. The high-pressure nozzle supplies water to the nozzle body through the manifold joint.

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 arranged at the outer end of the sleeve body. The centrifugal ring extends toward the end fixing ring with the trigger bar. An inclined groove is provided on the trigger bar. One end of the arc-shaped lever is provided with a sliding portion that can be embedded in the inclined groove and slide in cooperation with the inclined groove, and the other end is provided with a connecting portion fixedly connected to the nozzle body. When the centrifugal ring moves toward the outer end of the sleeve body, the sliding portion 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 portion of the arc-shaped lever can pull the nozzle body to rotate away from the symmetry plane to expand 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 correspondingly provided with a locking clamp. When the centrifugal ring moves toward the outer end of the sleeve body to the maximum stroke, the trigger bar can be embedded in the elastic groove through the locking clamp 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 cover, which includes 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 matched, and vents are staggered on the inner cover body and the outer cover body. Rotating the inner cover body and the outer cover body can connect or close the vents to the inner cavity of the sleeve body and the outside world.

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