Fire monitor

Abstract

The fire monitor comprises a first monitor barrel, a material conveying barrel, a gas conveying mechanism and a monitor head, the material conveying barrel is arranged in the first monitor barrel, the output end of the material conveying barrel communicates with the monitor head, and the gas conveying mechanism is arranged on the material conveying barrel and used for conveying external gas into the material conveying barrel; the air conveying mechanism comprises a pushing structure and an air cylinder structure. The air cylinder structure comprises a cylinder body, a piston, a push rod, an air inlet pipe and an air outlet pipe. The device has the advantages that external gas is input into the material conveying barrel through the gas conveying mechanism, so that a foam aqueous solution is fully refined and foamed, and the capacity of the foam aqueous solution penetrating into a comburent and adhering to the surface of the comburent is greatly enhanced; in addition, the fire monitor can achieve conveying of water, foam and compressed air foam, and the three-in-one effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fire monitors, in particular to a fire monitor. Background Art

[0002] Fire safety is related to all aspects of production and life, including internal disaster prevention and external disaster elimination. In the daily life and production process, it is necessary to equip reasonable fire-fighting mechanisms and equipment, so as to prevent disasters from happening at the source or block the continuous development of disasters. Take fire as an example. When the disaster is about to reach or has reached an uncontrollable level, firefighters are needed to go out to extinguish the fire. Fire cannons, as a large-flow fire-fighting equipment, are often configured on fire trucks and fire-fighting robots. For example, the Chinese invention patent with publication number CN112535827A discloses a simple mobile fire cannon for fire fighting.

[0003] Based on different fire scenarios, it is necessary to select fire monitors that can deliver corresponding media. Currently, common fire extinguishing media include water, foam and compressed air foam. Among them, the fully automatic compressed air foam fire extinguishing system (CAFS system) is a type of fire extinguishing system that is currently frequently used. The CAFS system mixes water under normal pressure with foam stock in a certain proportion; then premixes it with air under compressed state in a certain proportion in a pipeline or water hose; and sprays it out through a spray device. The pressure, flow rate and mixing ratio of water, air and foam are completed by the control and regulation system to achieve the best match of the three. However, in actual application, the existing fire monitors can only deliver one of the media, and cannot be switched in real time based on the fire scene conditions and the status of the fire extinguishing medium supply equipment. Therefore, it is urgent to provide a three-in-one fire monitor that can deliver water, foam and compressed air foam. Summary of the invention

[0004] The technical problem to be solved by the present invention is a three-in-one fire monitor capable of delivering water, foam and compressed air foam.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A fire monitor, comprising a first barrel, a material delivery cylinder, a gas delivery mechanism and a gun head, wherein the first barrel is provided with a material delivery cylinder, the output end of the material delivery cylinder is connected with the gun head, and the gas delivery mechanism is provided on the material delivery cylinder for inputting external gas into the material delivery cylinder;

[0007] The gas delivery mechanism includes a pushing structure and a cylinder structure, one end of the pushing structure is arranged in the delivery barrel, and the other end is arranged outside the delivery barrel, and multiple groups of cylinder structures are arranged outside the delivery barrel, and the pushing structure arranged outside the delivery barrel is connected to the pushing end of the cylinder structure;

[0008] The cylinder structure includes a cylinder body, a piston, a push rod, an air inlet pipe and an air outlet pipe. The cylinder body is arranged outside the feeding barrel, and a piston is arranged inside the cylinder body. One end of the push rod passes through the cylinder body and is connected with the piston. The air inlet pipe and the air outlet pipe are both arranged on the cylinder body, and one end of the air outlet pipe away from the cylinder body extends into the feeding barrel. The pushing structure arranged outside the feeding barrel is connected to the push rod for pushing the piston to reciprocate in the cylinder body.

[0009] External gas is input into the feed barrel through the gas delivery mechanism to make the foam water solution fully refined and foamed, greatly enhancing its ability to penetrate into the interior of the burning material and adhere to the surface of the burning material; and the fire monitor can realize the delivery of water, foam and compressed air foam, achieving a three-in-one effect.

[0010] Preferably, a push plate is also fixed on the push rod arranged outside the cylinder body, and a first spring is sleeved on the push rod between the push plate and the cylinder body.

[0011] Preferably, the pushing structure comprises a cam and a rotating module, the outer edge surface of the cam is slidably fitted with the push plate, and the rotating module is used to drive the cam to rotate.

[0012] Preferably, the rotating module includes a positioning shaft, a rotating wheel, blades, a rotating shaft, a gear ring, a gear, a connecting rod and a connecting frame. A positioning shaft is provided at the axis center of the feed barrel, one end of the positioning shaft away from the gun head is fixed to the feed barrel, and the other end is provided with a rotatable rotating wheel. A plurality of groups of blades are fixedly arranged in a circumferential array on the rotating wheel. The rotating shaft is arranged along the axis center of the feed barrel, one end of the rotating shaft is connected to the center of the rotating wheel and can rotate with the rotating wheel. The gear ring is connected to the rotating shaft through a connecting frame. The connecting rod is rotatably arranged on the feed barrel, one end of the connecting rod is connected to a gear meshing with the gear ring, and the other end is connected to a cam. One end of the connecting frame is connected to the connecting rod, and the other end is sleeved on the rotating shaft.

[0013] Preferably, the feed cylinder includes a first feed cylinder and a second feed cylinder, the first feed cylinder and the second feed cylinder are disconnected, and sealing rings are provided at both ends, the sealing ring is sealed and connected to the inner wall of the first barrel, the connecting rod is rotatably set on the sealing ring, and the gear ring and the gear are set in the space where the first feed cylinder and the second feed cylinder are disconnected.

[0014] Preferably, the rotating shaft includes a positioning cylinder and a support shaft, the positioning cylinder is connected to the center of the rotating wheel and can rotate with the rotating wheel, the support shaft can be movably clamped in the positioning cylinder and rotate with the positioning cylinder, and the gear ring is connected to the support shaft and rotates with the support shaft.

[0015] Preferably, the inner wall of the positioning tube is provided with a plurality of groups of first slots in a circumferential array, and a first socket slidably engaged with the first slots is fixedly disposed on the support shaft.

[0016] Preferably, the end of the support shaft away from the positioning cylinder is connected to the adjusting rod through a tapered shaft, and the feed cylinder is also provided with a positioning frame, one end of the positioning frame extends into the feed cylinder to support the adjusting rod, so that the adjusting rod can rotate and slide horizontally on the positioning frame, a baffle is provided at the end of the adjusting rod away from the tapered shaft, a second spring is sleeved on the adjusting rod between the positioning frame and the baffle, the other end of the positioning frame is arranged outside the feed cylinder and vertically connected with a first screw, a vertical motor is arranged on the first gun barrel, the output end of the vertical motor passes through the first gun barrel and is connected with the first screw, a first nut is threadedly connected to the first screw, a guide rod is connected to the first nut, and the end of the guide rod away from the first nut passes through the feed cylinder and is provided with a guide wheel that fits with the tapered shaft.

[0017] Preferably, the connecting rod includes a limit rod and a cylinder, the limit rod is rotatably arranged on the feed cylinder, one end of the limit rod is connected to the gear, and the other end is sleeved in the cylinder, a plurality of groups of second slots are provided on the inner wall of the cylinder in a circumferential array, a second slot is fixedly arranged on the limit rod and slidably engaged with the second slot, the cylinder is rotatably connected to a mounting plate fixedly arranged on the outer wall of the second feed cylinder, and one end of the cylinder away from the limit rod is connected to a cam.

[0018] Preferably, it also includes a curved barrel, a second barrel, a first drive assembly and a second drive assembly, the first barrel is connected to the second barrel through the curved barrel at one end away from the gun head, the curved barrel and the second barrel are in communication with the inner cavity of the feed barrel, the curved barrel is provided with a first drive assembly capable of driving the first barrel to rotate vertically at one end away from the second barrel, and the second barrel is provided with a second drive assembly capable of driving the curved barrel to rotate horizontally.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The external gas is input into the feeding cylinder through the gas transmission mechanism, so that the foam water solution is fully refined and foamed, which greatly enhances its ability to penetrate into the interior of the burning object and adhere to the surface of the burning object; and the fire monitor can realize the transmission of water, foam and compressed air foam, achieving a three-in-one effect.

[0021] 2. The first driving assembly drives the first gun barrel to rotate in the vertical direction, and the second driving assembly drives the curved gun barrel to rotate in the horizontal direction, so as to expand the spray range of the gun head. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0023] Figure 2 It is another state structure schematic diagram of an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the material delivery cylinder and the gas delivery mechanism of an embodiment of the present invention;

[0025] Figure 4 It is a partial cross-sectional view of the material delivery cylinder and the gas delivery mechanism of an embodiment of the present invention;

[0026] Figure 5 is a cross-sectional view of a rotating shaft according to an embodiment of the present invention;

[0027] Figure 6 It is a partial structural schematic diagram of a cylinder structure according to an embodiment of the present invention;

[0028] Figure 7 It is a schematic structural diagram of a gun head according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to facilitate those skilled in the art to understand the technical solution of the present invention, the technical solution of the present invention is further described in conjunction with the accompanying drawings of the specification.

[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically limited.

[0032] See also Figures 1 to 4 This embodiment discloses a fire cannon, including a first gun barrel 1, a gun head 2, a feed cylinder 3, a gas delivery mechanism 4, a curved gun barrel 5, a second gun barrel 6, a first drive assembly 7, and a second drive assembly 8.

[0033] A feed cylinder 3 is arranged inside the first gun barrel 1, and the output end of the feed cylinder 3 is connected to the gun head 2. The gas supply mechanism 4 is arranged on the feed cylinder 3 and is used to input external gas into the feed cylinder 4. The end of the first gun barrel 1 away from the gun head 2 is also connected to the second gun barrel 6 through a curved gun barrel 5, wherein the two ends of the curved gun barrel 5 are rotatably connected to the first gun barrel 1 and the second gun barrel 6 respectively, and the second gun barrel 6 is used to connect a fire extinguishing medium delivery mechanism, wherein the fire extinguishing medium delivery mechanism includes a delivery pump and a storage box for storing the fire extinguishing medium, and the storage box is provided with two groups, one group for storing foam and the other group for storing water, and the delivery pump is connected to the two groups of storage boxes respectively through two groups of pipes, and valves are provided between the pipes so that the delivery pump can deliver water or foam or a mixture of the two.

[0034] The gas delivery mechanism 4 is used to input external gas into the delivery barrel 3 to mix with water and foam to form compressed air foam; it can be explained that when the firefighters deliver compressed air foam for extinguishing, they first deliver water and foam toward the gun head 2 through the delivery pump, and then input external gas into the delivery barrel 3 through the gas delivery mechanism 5, so that the foam water solution is fully refined and foamed, which greatly enhances its ability to penetrate into the interior of the burning object and adhere to the surface of the burning object; and the fire cannon can realize the delivery of water, foam and compressed air foam, achieving a three-in-one effect.

[0035] The curved gun barrel 5 and the second gun barrel 6 are connected to the inner cavity of the feed cylinder 3. The end of the curved gun barrel 5 away from the second gun barrel 6 is also provided with a first driving assembly 7 capable of driving the first gun barrel 1 to rotate vertically. The second gun barrel 6 is provided with a second driving assembly 8 capable of driving the curved gun barrel 5 to rotate horizontally. The first driving assembly 7 drives the first gun barrel 1 to rotate in the vertical direction, and the second driving assembly 8 drives the curved gun barrel 5 to rotate in the horizontal direction, thereby expanding the spraying range of the gun head 2. It should be noted that the first driving assembly 7 and the second driving assembly 8 are motor drive mechanisms, which can be purchased on the market.

[0036] In this embodiment, the first drive assembly 7 includes a first motor and a first sleeve arranged between the first gun barrel 1 and the curved gun barrel 5, one end of the first sleeve is fixed to the first gun barrel 1, and the other end is rotatably connected to the curved gun barrel 5. An annular turbine is also rotatably arranged in the first sleeve, one end of the annular turbine is rotatably connected to the curved gun barrel 5, and the other end is fixed to the first gun barrel 1. The first drive assembly 7 also includes a first limiting cylinder fixedly arranged on one side of the first sleeve, the first limiting cylinder is connected to the first sleeve, and a worm engaged with the annular turbine is rotatably arranged in the first limiting cylinder, and the worm is fixed to the driving end of the first motor; specifically, when the first motor is started to drive the worm to rotate, the worm can synchronously drive the first gun barrel 1 to rotate in the vertical direction by engaging with the annular turbine to perform a preliminary adjustment on the angle of the gun head 2.

[0037] In addition, the second drive assembly 8 includes a second motor and a second sleeve arranged between the curved gun barrel 5 and the second gun barrel 6, one end of the second sleeve is fixed to the curved gun barrel 5, and the other end is rotatably connected to the second gun barrel 6. An annular turbine is also rotatably arranged in the second sleeve, one end of the annular turbine is rotatably connected to the second gun barrel 6, and the other end is fixed to the curved gun barrel 5. The second drive assembly 8 also includes a second limiting cylinder fixedly arranged on one side of the second sleeve, the second limiting cylinder is communicated with the second sleeve, a worm gear meshing with the annular turbine is rotatably arranged in the second limiting cylinder, and the worm gear is fixed to the driving end of the second motor; specifically, when the second motor is started to drive the worm gear to rotate, the worm gear can synchronously drive the curved gun barrel 5 to rotate in the horizontal direction by meshing with the annular turbine, so as to adjust the angle of the gun head 2 again, thereby further expanding the spraying range of the gun head 2.

[0038] See also Figure 3 and Figure 4 The feeding cylinder 3 includes a first feeding cylinder 31 and a second feeding cylinder 32 . The first feeding cylinder 31 and the second feeding cylinder 32 are disconnected and both ends are provided with sealing rings 301 . The sealing rings 301 are sealed and connected to the inner wall of the first barrel 1 .

[0039] The gas delivery mechanism 4 includes a pushing structure 41 and a cylinder structure 42. One end of the pushing structure 41 is arranged in the delivery barrel 3, and the other end is arranged outside the delivery barrel 3. Multiple groups of cylinder structures 42 are arranged outside the delivery barrel 3. In this embodiment, three groups of cylinder structures 42 are arranged; the pushing structure 41 arranged outside the delivery barrel 3 is connected to the pushing end of the cylinder structure 42.

[0040] The pushing structure 41 includes a cam 411 and a rotating module, and the rotating module includes a positioning shaft 412, a rotating wheel 413, blades 414, a rotating shaft 415, a gear ring 416, a gear 417, a connecting rod 418 and a connecting frame 419. The first feeding cylinder 31 is provided with a positioning shaft 412 at the axis center, and one end of the positioning shaft 412 away from the gun head 2 is fixed to the first feeding cylinder 31, and the other end is provided with a rotating wheel 413, and a plurality of groups of blades are fixedly arranged in a circumferential array on the rotating wheel 413. The sheet 414, the rotating shaft 415 is arranged along the axis of the second feeding barrel 32, one end of the rotating shaft 415 is connected to the center of the rotating wheel 413 and can rotate with the rotating wheel 413, the rotating shaft 415 is connected to the gear ring 416 through a connecting frame, the connecting rod 418 is rotatably arranged on the sealing ring 301, one end of the connecting rod 418 is connected to the gear 417 meshing with the gear ring 416, and the other end is connected to the cam 411, and the cam 411 is fitted on the pushing end of the cylinder structure 42.

[0041] One end of the connecting frame 419 is connected to the connecting rod 418, and the other end is sleeved on the rotating shaft 415. Figure 5The rotating shaft 415 includes a positioning cylinder 4151 and a support shaft 4152. The positioning cylinder 4151 is connected to the center of the rotating wheel 413 and can rotate with the rotating wheel 413. The support shaft 4152 can be movably clamped in the positioning cylinder 4152 and rotate with the positioning cylinder 4152. The gear ring 416 is connected to the support shaft 4152 and rotates with the support shaft 4152. The connecting frame 419 is sleeved on the support shaft 4152, so that the support shaft 4152 can rotate idly on the connecting frame 419 and the connecting frame 419 can move linearly with the support shaft 4152. For details, refer to Figure 5 The inner wall of the positioning cylinder 4151 is provided with a plurality of first slots 41511 in a circumferential array, and the support shaft 4152 is fixedly provided with a first seat 41521 which is slidably engaged with the first slots 41511, which not only enables the support shaft 4152 to slide in the positioning cylinder 4151 but also ensures that the support shaft 4152 can rotate with the positioning cylinder 4151.

[0042] The end of the support shaft 4152 away from the positioning cylinder 4151 is connected to the adjustment rod 4154 through the tapered shaft 4153. The second feeding cylinder 32 is also provided with a positioning frame 9. One end of the positioning frame 9 extends into the second feeding cylinder 32 to support the adjustment rod 4154, so that the adjustment rod 4154 can rotate and slide horizontally on the positioning frame 9. A baffle 4155 is provided at the end of the adjustment rod 4154 away from the tapered shaft 4153. A second spring 4156 is sleeved on the adjustment rod 4154 between the positioning frame 9 and the baffle 4155. The second spring 4156 is always in a compressed state, and the other end of the positioning frame 9 is arranged outside the second feed cylinder 32 and is vertically connected to the first screw 10. The first gun barrel 1 is provided with a vertical motor 11, and the output end of the vertical motor 11 passes through the first gun barrel 1 and is connected to the first screw 10. The first screw 10 is threadedly connected with a first nut 12, and the first nut 12 is connected to a guide rod 13. The end of the guide rod 13 away from the first nut 12 passes through the second feed cylinder 32 and is provided with a guide wheel 14 that fits with the tapered shaft 4153. Specifically, when it is necessary to introduce the compressed air foam medium, the vertical motor 11 drives the first screw rod 10 to rotate, so that the first nut 12 moves upward on the first screw rod 10, and the guide rod 13 drives the guide wheel 14 to press the tapered shaft 4153, so that the tapered shaft 4153 moves in the direction of the positioning cylinder 4151, and the support shaft 4152 is inserted into the positioning cylinder 4151, ensuring that the support shaft 4152 can rotate with the positioning cylinder 4151, and a gear ring 416 is provided on the support shaft 4152, so that the gear ring 416 rotates to drive the gear 417 to rotate, and since the support shaft 4152 can idle on the connecting frame 419, the connecting frame 419 does not rotate with the support shaft 4152, so that the gear 417 is rotated. 7 rotates to drive the connecting rod 418 to rotate, which in turn can drive the cam 411 to rotate; then the water and foam media are transported through the fire extinguishing medium delivery mechanism, and the water and foam media synchronously drive the wheel 413 to rotate in the process of passing through the blade 414, and the wheel 413 drives the support shaft 4152 to rotate through the positioning cylinder 4151, and the rotation of the support shaft 4152 drives the gear ring 416 to rotate, and then drives the gear 417, and the gear 417 can drive the cam 414 to rotate through the connecting rod 418, and finally push the cylinder structure 42 to input the external gas into the delivery cylinder 3, so that the foam water solution is fully refined and foamed, which greatly enhances its ability to penetrate into the interior of the burning object and adhere to the surface of the burning object. In the process of transporting the fire extinguishing medium, this embodiment converts the kinetic energy of the fire extinguishing medium into mechanical energy to drive the wheel 413 to rotate, and does not need to use other servo drive equipment to drive the wheel 413 to rotate.

[0043] When there is no need to introduce compressed air foam medium, the first screw 10 is driven to rotate by the vertical motor 11, so that the first nut 12 moves downward on the first screw 10, and the guide rod 13 drives the guide wheel 14 away from the tapered shaft 4153. Since the second spring 4156 is always in a compressed state, the second spring 4156 drives the adjusting rod 4154 to move away from the positioning cylinder 4151, so that the support shaft 4152 is disengaged from the positioning cylinder 4151, so that the support shaft 4152 does not rotate with the positioning cylinder 4151, and thus will not drive the gear 417 to rotate, and will not push the cylinder structure 42 to input external gas into the feeding cylinder 3.

[0044] The connecting rod 418 includes a limiting rod 4181 and a cylinder 4182. The limiting rod 4181 is rotatably arranged on the sealing ring 301 on the first feeding cylinder 31 and the second feeding cylinder 32. One end of the limiting rod 4181 is connected to the gear 417, and the other end is sleeved in the cylinder 4182. The end of the cylinder 4182 away from the limiting rod 4181 is connected to the cam 411. The inner wall of the cylinder 4182 is provided with a plurality of groups of second slots in a circumferential array. The limiting rod 4181 is fixedly provided with a second seat that is slidably engaged with the second slots. The cylinder 4182 is rotatably connected to the mounting plate fixedly arranged on the outer wall of the second feeding cylinder 32, so that the cylinder 4182 can rotate with the limiting rod 4181, but will not move with the limiting rod 4181.

[0045] See also Figure 3 and Figure 6 The cylinder structure 42 includes a cylinder body 421, a piston 422, a push rod 423, an air inlet pipe 424, an air outlet pipe 425, a push plate 426 and a first spring 427. The cylinder body 421 is arranged outside the second feeding barrel 32, and a piston 422 is arranged inside the cylinder body 421. One end of the push rod 423 passes through the cylinder body 421 and is connected with the piston 422. The air inlet pipe 424 and the air outlet pipe 425 are both arranged on the cylinder body 421. One end of the air outlet pipe 425 away from the cylinder body 421 extends into the second feeding barrel 32. A push plate 426 is also fixed on the push rod 423 arranged outside the cylinder body 421. A first spring is sleeved on the push rod 423 between the push plate 426 and the cylinder body. 427, a one-way valve for air intake is provided on the air inlet pipe 424, and a one-way valve for air outlet is provided on the air outlet pipe 425; specifically, when the cam 411 rotates, it will drive the push rod 423 to move into the cylinder body 421, and then drive the piston 422 to reciprocate in the cylinder body 421, and input the air in the cylinder body 421 into the second feeding barrel 32 through the air outlet pipe 425, so that the foam water solution is fully refined and foamed to form compressed air foam, which greatly enhances its ability to penetrate into the interior of the combustion object and adhere to the surface of the combustion object; and under the action of the first spring 427, the push rod 423 can rebound, driving the piston 422 to rebound, so as to absorb external air into the cylinder body 421.

[0046] For further information, see Figure 7 An inclined groove 201 is provided on the inner side of the open end of the gun head 2, and a sealing cylinder 202 is provided on the outer side of the open end, and a discharge gap 203 for discharging is formed between the end of the sealing cylinder 202 and the inclined groove 201, wherein a second screw 204 is also rotatably arranged in the gun head 2, and a second nut 205 is spirally sleeved on the second screw 204, and the second nut 205 is fixed to the sealing cylinder 202 through an L-shaped bracket 206, wherein a horizontal motor is also fixedly arranged on the outer side of the first gun barrel 1, and the driving end of the horizontal motor is connected to the second screw 204 through a transmission belt; it can be explained that when adjusting the size of the discharge gap 203, the horizontal motor is started, and the horizontal motor drives the second screw 204 to rotate through the transmission belt, and the second nut 205 pushes the sealing cylinder 202 to move in the axial direction through the L-shaped bracket 203 during the movement on the second screw 204, thereby adjusting the size of the discharge gap 203 to synchronously adjust the discharge amount of the fire extinguishing medium.

[0047] The working principle of this embodiment is as follows: when the required fire extinguishing medium is water or foam, the vertical motor 11 drives the first screw 10 to rotate, so that the first nut 12 moves downward on the first screw 10, and the guide rod 13 drives the guide wheel 14 away from the tapered shaft 4153. Since the second spring 4156 is always in a compressed state, the second spring 4156 drives the adjusting rod 4154 to move away from the positioning cylinder 4151, so that the support shaft 4152 is disengaged from the positioning cylinder 4151, so that the support shaft 4152 does not rotate with the positioning cylinder 4151, and thus will not drive the gear 417 to rotate, and thus will not push the cylinder structure 42 to input the external gas into the feeding cylinder 3, and then directly transport the medium through the fire extinguishing medium conveying mechanism.

[0048] When it is necessary to introduce compressed air foam medium, the first screw 10 is driven to rotate by the vertical motor 11, so that the first nut 12 moves upward on the first screw 10, and the guide rod 13 drives the guide wheel 14 to press the conical shaft 4153, so that the conical shaft 4153 moves in the direction of the positioning cylinder 4151, so that the support shaft 4152 is inserted into the positioning cylinder 4151, ensuring that the support shaft 4152 can rotate with the positioning cylinder 4151, and a gear ring 416 is provided on the support shaft 4152, so that the gear ring 416 rotates to drive the gear 417 to rotate, and since the support shaft 4152 can idle on the connecting frame 419, the connecting frame 419 does not rotate with the support shaft 4152, so that the connecting rod 418 is driven to rotate through the rotation of the gear 417, and then the cam 411 can be driven to rotate. ; Then, water and foam are transported through the fire extinguishing medium conveying mechanism. The water and foam media synchronously drive the wheel 413 to rotate in the process of passing through the blade 414. The wheel 413 drives the support shaft 4152 to rotate through the positioning cylinder 4151. The rotation of the support shaft 4152 drives the gear ring 416 to rotate, and then drives the gear 417. The gear 417 can drive the cam 414 to rotate through the connecting rod 418, and finally push the cylinder structure 42 to input the external gas into the feeding cylinder 3, so that the foam water solution is fully refined and foamed, which greatly enhances its ability to penetrate into the interior of the combustion object and adhere to the surface of the combustion object; and under the action of the first spring 427, the push rod 423 can rebound, driving the piston 422 to rebound, which is used to absorb external air into the cylinder body 421.

[0049] And when outputting the medium, the horizontal motor drives the second screw 204 to rotate through the transmission belt. During the movement of the second nut 205 on the second screw 204, the sealing cylinder 202 is pushed to move in the axial direction through the L-shaped bracket 203. The size of the discharge gap 203 can be adjusted to synchronously adjust the discharge amount of the fire extinguishing medium.

[0050] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0051] The above-described embodiments merely represent implementation methods of the invention. The protection scope of the present invention is not limited to the above-described embodiments. For those skilled in the art, several modifications and improvements may be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A fire monitor, characterized in that: It includes a first gun barrel, a material delivery cylinder, a gas delivery mechanism and a gun head, wherein the first gun barrel is provided with a material delivery cylinder inside, the output end of the material delivery cylinder is connected with the gun head, and the gas delivery mechanism is provided on the material delivery cylinder for inputting external gas into the material delivery cylinder; The gas delivery mechanism includes a pushing structure and a cylinder structure, one end of the pushing structure is arranged in the delivery barrel, and the other end is arranged outside the delivery barrel, and multiple groups of cylinder structures are arranged outside the delivery barrel, and the pushing structure arranged outside the delivery barrel is connected to the pushing end of the cylinder structure; The cylinder structure includes a cylinder body, a piston, a push rod, an air inlet pipe and an air outlet pipe. The cylinder body is arranged outside the feeding barrel, and a piston is arranged inside the cylinder body. One end of the push rod passes through the cylinder body and is connected with the piston. The air inlet pipe and the air outlet pipe are both arranged on the cylinder body, and one end of the air outlet pipe away from the cylinder body extends into the feeding barrel. The pushing structure arranged outside the feeding barrel is connected to the push rod for pushing the piston to reciprocate in the cylinder body.

2. A fire monitor according to claim 1, characterized in that: A push plate is also fixed on the push rod arranged outside the cylinder body, and a first spring is sleeved on the push rod between the push plate and the cylinder body.

3. A fire monitor according to claim 2, characterized in that: The pushing structure comprises a cam and a rotating module. The outer edge surface of the cam is slidably fitted with the push plate, and the rotating module is used to drive the cam to rotate.

4. A fire monitor according to claim 3, characterized in that: The rotating module includes a positioning shaft, a rotating wheel, blades, a rotating shaft, a gear ring, a gear, a connecting rod and a connecting frame. A positioning shaft is provided at the axis of the feed barrel, one end of the positioning shaft away from the gun head is fixed to the feed barrel, and the other end is provided with a rotatable rotating wheel. A plurality of groups of blades are fixedly arranged on the rotating wheel in a circumferential array. The rotating shaft is arranged along the axis of the feed barrel, one end of the rotating shaft is connected to the center of the rotating wheel and can rotate with the rotating wheel. The gear ring is connected to the rotating shaft through a connecting frame, and the connecting rod is rotatably arranged on the feed barrel. One end of the connecting rod is connected to a gear meshing with the gear ring, and the other end is connected to a cam. One end of the connecting frame is connected to the connecting rod, and the other end is sleeved on the rotating shaft.

5. A fire monitor according to claim 4, characterized in that: The feed cylinder includes a first feed cylinder and a second feed cylinder, the first feed cylinder and the second feed cylinder are disconnected, and sealing rings are provided at both ends, the sealing rings are sealed and connected to the inner wall of the first barrel, the connecting rod is rotatably arranged on the sealing ring, and the gear ring and the gear are arranged in the space where the first feed cylinder and the second feed cylinder are disconnected.

6. A fire monitor according to claim 5, characterized in that: The rotating shaft includes a positioning cylinder and a support shaft, wherein the positioning cylinder is connected to the center of the rotating wheel and can rotate with the rotating wheel, the support shaft can be movably clamped in the positioning cylinder and rotate with the positioning cylinder, and the gear ring is connected to the support shaft and rotates with the support shaft.

7. A fire monitor according to claim 6, characterized in that: The inner wall of the positioning cylinder is provided with a plurality of first clamping grooves in a circumferential array, and a first clamping seat which is slidably clamped with the first clamping groove is fixedly arranged on the support shaft.

8. A fire monitor according to claim 7, characterized in that: The end of the support shaft away from the positioning cylinder is connected to the adjusting rod through a tapered shaft, and a positioning frame is also provided on the feed cylinder, and one end of the positioning frame extends into the feed cylinder to support the adjusting rod, so that the adjusting rod can rotate and slide horizontally on the positioning frame, and a baffle is provided at the end of the adjusting rod away from the tapered shaft, and a second spring is sleeved on the adjusting rod between the positioning frame and the baffle, and the other end of the positioning frame is arranged outside the feed cylinder and vertically connected with a first screw, a vertical motor is arranged on the first gun barrel, and the output end of the vertical motor passes through the first gun barrel and is connected to the first screw, a first nut is threadedly connected to the first screw, and a guide rod is connected to the first nut, and the end of the guide rod away from the first nut passes through the feed cylinder and is provided with a guide wheel that fits with the tapered shaft.

9. A fire monitor according to claim 8, characterized in that: The connecting rod includes a limit rod and a cylinder. The limit rod is rotatably arranged on the feed cylinder, one end of which is connected to the gear, and the other end is sleeved in the cylinder. The inner wall of the cylinder has a plurality of groups of second slots in a circumferential array. A second socket is fixedly arranged on the limit rod and slidably engaged with the second slot. The cylinder is rotatably connected to a mounting plate fixedly arranged on the outer side wall of the second feed cylinder, and the end of the cylinder away from the limit rod is connected to a cam.

10. A fire monitor according to claim 1, characterized in that: It also includes a curved gun barrel, a second gun barrel, a first drive assembly and a second drive assembly. The end of the first gun barrel away from the gun head is connected to the second gun barrel through the curved gun barrel. The curved gun barrel and the second gun barrel are connected to the inner cavity of the feed barrel. The end of the curved gun barrel away from the second gun barrel is also provided with a first drive assembly that can drive the first gun barrel to rotate vertically, and the second gun barrel is provided with a second drive assembly that can drive the curved gun barrel to rotate horizontally.

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