Multi-mode fire-fighting spraying device

Abstract

The invention discloses a multi-mode fire-fighting jetting device, and relates to the technical field of jetting devices. Comprising a fire pump, a multi-mode injector head and a pipeline connecting the fire pump and the multi-mode injector head, the fire pump comprises a mounting frame, a main motor chamber, a main impeller chamber and an auxiliary impeller chamber are mounted on the mounting frame, and an output shaft of a motor in the mounting frame is in transmission connection with a main impeller shaft of a main impeller in the main impeller chamber; the main impeller shaft rotates on the inner wall of the main impeller chamber in a sealed mode. By arranging the main impeller chamber and the auxiliary impeller chamber, double-channel water supply can be achieved, and multi-point-position spraying operation can be conveniently achieved; due to the fact that the clutch mechanism and the transmission ratio control mechanism are arranged between the main impeller chamber and the auxiliary impeller chamber, whether a channel corresponding to the auxiliary impeller chamber works or not can be controlled based on clutch control of the clutch mechanism, and the output speed of the auxiliary impeller chamber is controlled based on adjustment of the transmission ratio so as to better adapt to different situations.

Description

Technical Field

[0001] The present invention relates to the technical field of spray devices, and in particular to a multi-mode fire-fighting spray device. Background Art

[0002] In modern fire protection systems, efficient and reliable fire extinguishing equipment is the key to protecting life and property. Traditional fire spraying devices can only perform single-mode spraying operations and cannot effectively spray multiple targets at the same time, which limits the efficiency and effect of firefighting to a certain extent. With the acceleration of urbanization, the height and density of buildings are increasing, and the risk of fire is also increasing, which puts higher requirements on the flexibility and adaptability of fire protection equipment.

[0003] After searching, the application scheme of Chinese patent application number CN201620878963.6 discloses an electric three-wheeled fire truck, including a frame, front wheels, rear wheels, water tank, cover, seat, battery, jet pump, connecting pipe, water pipe, water gun, guardrail, rack, water inlet, water pump, water inlet pipe, water suction pipe and anti-fouling port, the cover is arranged on the top of the water tank; the battery is arranged at the bottom of the seat; the jet pump is installed at the bottom of the frame; the jet pump is connected to the water tank through a connecting pipe; the water gun is connected to the water outlet of the jet pump through a water pipe; a guardrail is arranged on the cover; a rack is installed on the side of the guardrail; a water inlet is opened in the center of the cover; a water pump is installed on the cover near the water inlet; the output end of the water pump is connected to the water inlet pipe, the input end of the water pump is connected to the water suction pipe; the end of the water suction pipe is provided with an anti-fouling port. The fire truck in the above document has the following shortcomings: it can only realize the output of a single pipeline and lacks flexibility. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a multi-mode fire-fighting spray device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A multi-mode fire-fighting spray device, comprising a fire-fighting pump, a multi-mode spray head and a pipeline connecting the fire-fighting pump and the multi-mode spray head, wherein the fire-fighting pump comprises a mounting frame, wherein a main motor chamber is mounted on the mounting frame, and a main impeller chamber and a secondary impeller chamber are mounted on the mounting frame, wherein an output shaft of a motor in the mounting frame is drivingly connected with a main impeller shaft of a main impeller in the main impeller chamber, wherein the main impeller shaft seals and rotates on an inner wall of the main impeller chamber, and one end of the main impeller shaft extends to a side of the main impeller chamber away from the main motor chamber; wherein a secondary impeller shaft of a secondary impeller in the secondary impeller chamber seals and rotates on an inner wall of the secondary impeller chamber, and one end of the secondary impeller chamber extends to a side of the secondary impeller chamber close to the main impeller chamber; A transmission chamber is arranged between the main impeller shaft and the auxiliary impeller shaft, and a clutch mechanism and a transmission ratio control mechanism are installed in the transmission chamber.

[0006] As a preferred embodiment of the present invention, the transmission ratio control mechanism includes: A transmission ratio adjustment frame, on which a translation frame is rotatably mounted, a transmission sleeve is fixed at the center of the translation frame, and transmission convex strips evenly distributed in a circumference are arranged on the outer side of one end of the transmission sleeve away from the transmission ratio adjustment frame; both ends of the transmission convex strips are arc-shaped and have smooth transition structures; A support seat, wherein a plurality of support seats are linearly distributed along the motion path of the transmission sleeve, a rotating drum is rotatably mounted on the inner side of the support seat, a driving gear is fixed on the outer side of one end of the rotating drum, and the driving gears on different rotating drums have different radii. A linkage groove matching the transmission convex strip is arranged on the inner side of the rotating drum, and the end of the linkage groove is an arc-shaped transition structure that is convenient for the transmission convex strip to be inserted; A driven gear, a third support frame is fixed in the transmission chamber, the auxiliary impeller shaft is rotatably mounted on the third support frame, a plurality of driven gears are mounted on the outside of the auxiliary impeller shaft, the driven gears are matched and meshed with the driving gears one by one, and the transmission ratio of each pair of driven gears and driving gears is different; The transmission ratio adjustment mechanism is used to control the translation of the transmission ratio adjustment frame, and realizes the change of the transmission ratio based on the cooperation between the transmission convex strip and the linkage groove in each rotating drum; The clutch mechanism controls the clutch transmission between the main impeller shaft and the transmission sleeve.

[0007] As a preferred embodiment of the present invention, the transmission ratio adjustment mechanism further includes: A first support frame, the first support frame is fixed in the transmission chamber; A second support frame, the second support frame is fixed in the transmission chamber; A guide rod, one end of the guide rod is fixed to the first support frame, and the other end of the guide rod is fixed to the second support frame, and the transmission ratio adjustment frame is slidably connected to the outer wall of the guide rod; A transmission ratio adjusting screw, the transmission ratio adjusting screw being rotatably installed between the first support frame and the second support frame; The rotation driving part is installed on the second supporting frame and is used to control the rotation of the transmission ratio adjusting screw.

[0008] As a preferred embodiment of the present invention, the rotation driving unit includes: A transmission ratio adjustment motor, the transmission ratio adjustment motor is installed on the second support frame through a motor seat; A gear transmission assembly, the output end of the transmission ratio adjustment motor is connected to one end of the transmission ratio adjustment screw through the gear transmission assembly, a support rod is fixed to the outer wall of one side of the second support frame, and the transmission sleeve is slidably and rotatably installed on the outer side of the support rod.

[0009] As a preferred embodiment of the present invention, a control module is provided in the transmission chamber, a control panel is provided on one side of the transmission chamber, and the control panel, the control module and the transmission ratio adjustment motor are electrically connected.

[0010] As a preferred embodiment of the present invention, a connecting plate is fixed to the outer wall of one side of the bottom of the transmission ratio adjustment frame, a reference block is arranged at the bottom of one end of the connecting plate, a linearly distributed position detection sensor is arranged in the transmission chamber, the position detection sensor is located below the movement path of the reference block, and the position detection sensor is electrically connected to the control module.

[0011] As a preferred embodiment of the present invention, the clutch mechanism includes: A transmission cylinder, which is rotatably mounted on the inner wall of the first support frame; The movable clamping block is provided with a plurality of slideways distributed circumferentially on the transmission cylinder, the movable clamping block is slidably connected in the slideway, one end of the movable clamping block is in a V-shaped structure, the movable clamping block and the transmission cylinder are connected by a spring, a clamping groove cooperating with the movable clamping block is provided on the main impeller shaft, and the two edges of the clamping groove away from the center of the main impeller shaft are in an arc structure for facilitating insertion of the clamping groove; An annular mounting seat, in which an annular extrusion seat is rotatably mounted, a side of the annular extrusion seat close to the movable clamping block is a bucket-shaped inclined surface structure, and a side of the movable clamping block close to the annular extrusion seat is an inclined surface structure; A transmission rod, one end of which is fixed to the outer wall of one side of the transmission cylinder, and a translation frame is rotatably mounted on the transmission ratio adjustment frame and is slidably connected to the outer wall of the transmission rod; The clutch driving part is used to control the translation of the annular mounting seat.

[0012] As a preferred embodiment of the present invention, the clutch driving unit includes: A fixing frame, the fixing frame is fixed to an outer wall of one side of the first supporting frame; A clutch control motor is fixed on a fixing frame, and an output end of the clutch control motor is transmission-connected with a clutch control screw; The translation frame is fixed to the bottom of the annular mounting seat, the translation frame is slidably connected to the outer wall of the fixing frame, and the translation frame is connected to the outer wall of the clutch control screw through threads.

[0013] As a preferred embodiment of the present invention, a top cover is hingedly connected to one side of the top of the transmission chamber, and a fixing buckle cooperating with the top cover is arranged on the other side of the top of the transmission chamber.

[0014] As a preferred embodiment of the present invention, a lubricating oil supply device is installed on the mounting frame, the output end of the lubricating oil supply device is connected to a supply pipe, one end of the supply pipe is connected to a delivery pipe, a fixing buckle is installed on one side of the support seat, the delivery pipe is fixed on the fixing buckle, a joint is provided on the top of the support seat, a liquid tank is provided in the support seat, one end of the liquid tank is connected to the joint, and the other end of the liquid tank extends to the rotation gap between the support seat and the rotating drum.

[0015] The beneficial effects of the present invention are: 1. The present invention can realize dual-channel water supply by setting a main impeller chamber and an auxiliary impeller chamber, so as to realize multi-point spraying operation; because a clutch mechanism and a transmission ratio control mechanism are set between the main impeller chamber and the auxiliary impeller chamber, it is possible to control whether the channel corresponding to the auxiliary impeller chamber is working based on the clutch control of the clutch mechanism, and control the output speed of the auxiliary impeller chamber based on the adjustment of the transmission ratio, so as to better adapt to different situations.

[0016] 2. The present invention sets a transmission ratio adjustment mechanism, which can adjust the motor based on the transmission ratio, drive the first support frame to translate, and make the transmission protrusion move to the linkage groove corresponding to the corresponding driving gear, thereby realizing the transmission connection with the corresponding driving gear, and then realizing the switching of the transmission ratio.

[0017] 3. The present invention provides a clutch driving part, and controls the operation of the clutch control motor to control the translation frame to translate along the fixed frame, thereby achieving the coordination between the annular extrusion seat and the movable clamping block.

[0018] 4. The present invention can drive the annular mounting seat to move based on the clutch control motor by setting up structures such as the transmission rod, the translation frame, the transmission cylinder and the movable clamping block. The clutch control of the structure is realized through the cooperation between the annular extrusion seat and the movable clamping blocks. In addition, the transmission rod and the support rod and other structures can adapt to the longer movement stroke of the transmission convex strip while meeting the transmission requirements, thereby ensuring the stability of the structure. At the same time, the structure is compact and the space utilization rate is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a multi-mode fire-fighting spray device proposed by the present invention; Figure 2 A schematic diagram of the structure of a multi-mode fire spray device proposed by the present invention with its top cover opened; Figure 3 This is a schematic diagram of the structure of the interior of a transmission chamber of a multi-mode fire spray device proposed by the present invention; Figure 4 This is a schematic diagram of the structure of a support base and a driving gear of a multi-mode fire spray device proposed by the present invention; Figure 5 This is a schematic structural diagram of a cross-section of a driving gear of a multi-mode fire spray device proposed by the present invention; Figure 6 A schematic diagram of the structure of a clutch mechanism of a multi-mode fire spray device proposed by the present invention; Figure 7 This is a schematic structural diagram of a cross-section of a clutch mechanism of a multi-mode fire spray device proposed by the present invention; Figure 8The present invention provides a schematic structural diagram of a multi-mode fire-fighting spray device in which a main impeller shaft is separated from a movable block.

[0020] In the figure: 1 mounting frame, 2 lubricating oil supply device, 3 supply pipe, 4 transmission chamber, 5 main motor chamber, 6 main impeller chamber, 7 top cover, 8 auxiliary impeller chamber, 9 control panel, 10 delivery pipe, 11 main impeller shaft, 12 clutch control motor, 13 clutch control screw, 14 first support frame, 15 transmission ratio adjustment frame, 16 transmission ratio adjustment screw, 17 third support frame, 18 driven gear, 19 position detection sensor, 20 auxiliary impeller shaft, 21 gear transmission assembly, 22 transmission ratio adjustment motor, 23 second support frame, 24 support rod, 25 fixing buckle, 26 support seat, 27 driving gear, 28 transmission sleeve, 29 transmission rod, 30 transmission cylinder, 31 card slot, 32 rotating cylinder, 33 reference block, 34 connecting plate, 35 linkage slot, 36 annular mounting seat, 37 transmission convex strip, 38 guide rod, 39 translation frame, 40 fixed frame, 41 movable card block, 42 ​​spring, 43 annular extrusion seat. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] Embodiment 1: A multi-mode fire-fighting spray device, such as Figure 1-8 As shown, it includes a fire pump, a multi-mode spray head and a pipeline connecting the fire pump and the multi-mode spray head, the fire pump includes a mounting frame 1, a main motor chamber 5 is installed on the mounting frame 1, a main impeller chamber 6 and a secondary impeller chamber 8 are installed on the mounting frame 1, the output shaft of the motor in the mounting frame 1 is drivingly connected with the main impeller shaft 11 of the main impeller in the main impeller chamber 6, the main impeller shaft 11 is sealed and rotated on the inner wall of the main impeller chamber 6, and one end of the main impeller shaft 11 extends to the side of the main impeller chamber 6 away from the main motor chamber 5; the secondary impeller shaft 20 of the secondary impeller in the secondary impeller chamber 8 is sealed and rotated on the inner wall of the secondary impeller chamber 8, and one end of the secondary impeller chamber 8 extends to the side of the secondary impeller chamber 8 close to the main impeller chamber 6; the main impeller chamber 6 and the secondary impeller chamber 8 are both provided with a water inlet end and a water outlet end, the water inlet end is used to connect to a water supply system or a water tank, etc., and the water outlet end is used to connect to the pipeline of the multi-mode spray head; A transmission chamber 4 is provided between the main impeller shaft 11 and the auxiliary impeller shaft 20. A clutch mechanism and a transmission ratio control mechanism are installed in the transmission chamber 4. The transmission ratio control mechanism includes: The transmission ratio adjustment frame 15 is rotatably provided with a translation frame 39, a transmission sleeve 28 is fixed at the center of the translation frame 39, and a transmission convex strip 37 evenly distributed in a circumference is arranged on the outer side of one end of the transmission sleeve 28 away from the transmission ratio adjustment frame 15; both ends of the transmission convex strip 37 are arc-shaped and smoothly transitioned; A support seat 26, a plurality of support seats 26 are linearly distributed along the motion path of the transmission sleeve 28, a rotating drum 32 is rotatably mounted on the inner side of the support seat 26, a driving gear 27 is fixed on the outer side of one end of the rotating drum 32, and the driving gears 27 on different rotating drums 32 have different radii; a linkage groove 35 adapted to the transmission convex strip 37 is arranged on the inner side of the rotating drum 32, and the end of the linkage groove 35 is an arc transition structure that is convenient for the transmission convex strip 37 to be inserted; A driven gear 18, a third support frame 17 is fixed in the transmission chamber 4, the auxiliary impeller shaft 20 is rotatably mounted on the third support frame 17, a plurality of driven gears 18 are mounted on the outside of the auxiliary impeller shaft 20, the driven gears 18 are matched and meshed with the driving gears 27 one by one, and the transmission ratio of each pair of driven gears 18 and driving gears 27 is different; The transmission ratio adjustment mechanism is used to control the translation of the transmission ratio adjustment frame 15, and realize the change of the transmission ratio based on the cooperation between the transmission convex strips 37 and the linkage grooves 35 in each rotating drum 32; The clutch mechanism controls the clutch transmission between the main impeller shaft 11 and the transmission sleeve 28; By providing the main impeller chamber 6 and the auxiliary impeller chamber 8, dual-channel water supply can be achieved, so as to realize multi-point spraying operation; since a clutch mechanism and a transmission ratio control mechanism are provided between the main impeller chamber 6 and the auxiliary impeller chamber 8, it is possible to control whether the channel corresponding to the auxiliary impeller chamber 8 is working based on the clutch control of the clutch mechanism, and to control the output speed of the auxiliary impeller chamber 8 based on the adjustment of the transmission ratio, so as to better adapt to different situations; For example, the main impeller chamber 6 with a larger flow rate is used to supply water to the main target for injection operation, and the auxiliary impeller chamber 8 with a smaller flow rate is used to supply water to the secondary target for injection operation, or auxiliary injection operation is performed on the main target; this method is more flexible and controllable, and can complete the injection operation more efficiently and reasonably under a limited water supply environment.

[0024] In order to facilitate the translation of the transmission ratio adjustment frame 15; Figure 3 , Figure 4 As shown, the transmission ratio adjustment mechanism includes: A first support frame 14, the first support frame 14 is fixed in the transmission chamber 4; A second support frame 23, the second support frame 23 is fixed in the transmission chamber 4; A guide rod 38, one end of the guide rod 38 is fixed to the first support frame 14, and the other end is fixed to the second support frame 23, and the transmission ratio adjustment frame 15 is slidably connected to the outer wall of the guide rod 38; A transmission ratio adjusting screw 16, the transmission ratio adjusting screw 16 is rotatably installed between the first support frame 14 and the second support frame 23; The rotation driving part is installed on the second support frame 23 and is used to control the rotation of the transmission ratio adjusting screw 16.

[0025] In order to facilitate the drive ratio adjustment screw 16 to rotate; Figure 3 As shown, the rotation driving unit includes: A transmission ratio adjustment motor 22, the transmission ratio adjustment motor 22 is mounted on the second support frame 23 through a motor seat; The gear transmission assembly 21, the output end of the transmission ratio adjustment motor 22 is transmission-connected to one end of the transmission ratio adjustment screw 16 through the gear transmission assembly 21; By setting up a transmission ratio adjustment mechanism, the transmission ratio adjustment motor 22 can work to drive the first support frame 14 to translate, so that the transmission protrusion 37 moves to the linkage groove 35 corresponding to the corresponding driving gear 27, thereby realizing the transmission connection with the corresponding driving gear 27, and then realizing the switching of the transmission ratio.

[0026] To improve reliability; Figure 3 , Figure 5 As shown, a support rod 24 is fixed to an outer wall of one side of the second support frame 23 , and a transmission sleeve 28 is slidably and rotatably installed on the outer side of the support rod 24 .

[0027] In order to better control the transmission ratio; Figure 2 , Figure 3 , Figure 4 As shown, a control module is disposed in the transmission chamber 4 , and a control panel 9 is disposed on one side of the transmission chamber 4 . The control panel 9 , the control module and the transmission ratio adjustment motor 22 are electrically connected.

[0028] In order to better control the transmission ratio; Figure 4 As shown, a connecting plate 34 is fixed to the outer wall of one side of the bottom of the transmission ratio adjustment frame 15, a reference block 33 is arranged at the bottom of one end of the connecting plate 34, and a linearly distributed position detection sensor 19 is arranged in the transmission chamber 4. The position detection sensor 19 is located below the motion path of the reference block 33, and the position detection sensor 19 is electrically connected to the control module; By setting the position detection sensor 19, the control module and other structures, the position detection sensor 19 can be used to detect the position of the reference block 33, so as to determine whether the transmission convex strip 37 moves to the right position, thereby realizing automatic control; Among them, for the signal transmission mechanism, power supply method and control logic, reference can be made to the existing technology and will not be elaborated here.

[0029] In order to facilitate clutch control; Figure 3 , Figure 6 , Figure 7 , Figure 8 As shown, the clutch mechanism includes: A transmission cylinder 30, the transmission cylinder 30 is rotatably mounted on the inner wall of the first support frame 14; The movable clamping block 41 and the transmission cylinder 30 are provided with a plurality of circumferentially distributed slideways, the movable clamping block 41 is slidably connected in the slideways, one end of the movable clamping block 41 is in a V-shaped structure, and the movable clamping block 41 and the transmission cylinder 30 are connected by a spring 42; the main impeller shaft 11 is provided with a clamping groove 31 that cooperates with the movable clamping block 41, and the two edges of the clamping groove 31 away from the center of the main impeller shaft 11 are in an arc structure that facilitates the insertion of the clamping groove 31; An annular mounting seat 36, in which an annular extrusion seat 43 is rotatably mounted, a side of the annular extrusion seat 43 close to the movable clamping block 41 is a bucket-shaped inclined surface structure, and a side of the movable clamping block 41 close to the annular extrusion seat 43 is an inclined surface structure; A transmission rod 29, one end of which is fixed to the outer wall of one side of the transmission cylinder 30, and a translation frame 39 is rotatably mounted on the transmission ratio adjustment frame 15 and is slidably connected to the outer wall of the transmission rod 29; The clutch driving part is used to control the translation of the annular mounting seat 36 .

[0030] In order to facilitate the driving of the annular mounting seat 36 to translate; Figure 3 , Figure 6 , Figure 7 , Figure 8 As shown, the clutch driving unit includes: A fixing frame 40, the fixing frame 40 is fixed to an outer wall of one side of the first supporting frame 14; A clutch control motor 12, the clutch control motor 12 is fixed on the fixing frame 40, and the output end of the clutch control motor 12 is drivingly connected to the clutch control screw 13; The translation frame 39 is fixed to the bottom of the annular mounting seat 36, the translation frame 39 is slidably connected to the outer wall of the fixing frame 40, and the translation frame 39 is connected to the outer wall of the clutch control screw 13 through threads; By setting a clutch driving part, the clutch control motor 12 is operated to control the translation frame 39 to translate along the fixed frame 40, so as to achieve the cooperation between the annular extrusion seat 43 and the movable block 41; By setting up structures such as the transmission rod 29, the translation frame 39, the transmission cylinder 30 and the movable clamping block 41, the motor 12 can be controlled based on the clutch to drive the annular mounting seat 36 to move. The clutch control of the structure is realized through the cooperation between the annular extrusion seat 43 and the movable clamping blocks 41. In addition, the transmission rod 29 and the support rod 24 can adapt to the longer movement stroke of the transmission ridge 37 while meeting the transmission requirements, thereby ensuring the stability of the structure. At the same time, the structure is compact and the space utilization rate is improved.

[0031] To improve reliability; Figure 1 As shown, a top cover 7 is hinged on one side of the top of the transmission chamber 4 , and a fixing buckle cooperating with the top cover 7 is provided on the other side of the top of the transmission chamber 4 .

[0032] In order to facilitate lubrication; Figure 1 , Figure 2 , Figure 5 As shown, a lubricating oil supply device 2 is installed on the mounting frame 1, and a supply pipe 3 is connected to the output end of the lubricating oil supply device 2, and one end of the supply pipe 3 is connected to the delivery pipe 10, a fixing buckle 25 is installed on one side of the support seat 26, and the delivery pipe 10 is fixed on the fixing buckle 25, a joint is provided on the top of the support seat 26, and a liquid tank is provided in the support seat 26, one end of the liquid tank is connected to the joint, and the other end of the liquid tank extends to the rotation gap between the support seat 26 and the rotating drum 32; By providing a lubricating oil supply device 2 and other structures, it is convenient to replenish the lubricating oil in time, thereby improving the transmission smoothness; In addition, the same lubrication supply structure can also be provided at other locations, such as the transmission cylinder 30, which will not be elaborated herein.

[0033] For the parts of the present invention that are not disclosed in detail, those skilled in the art can ensure that the solutions of the present invention are smoothly implemented based on common sense, normal thinking logic and existing technologies.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-mode fire spraying device, comprising a fire pump, a multi-mode spraying head and a pipeline connecting the fire pump and the multi-mode spraying head, characterized in that: The fire pump comprises a mounting frame (1), a main motor chamber (5) is mounted on the mounting frame (1), a main impeller chamber (6) and an auxiliary impeller chamber (8) are mounted on the mounting frame (1), an output shaft of the motor in the mounting frame (1) is drivingly connected to a main impeller shaft (11) of a main impeller in the main impeller chamber (6), the main impeller shaft (11) is sealed and rotated on the inner wall of the main impeller chamber (6), and one end of the main impeller shaft (11) extends to a side of the main impeller chamber (6) away from the main motor chamber (5); the auxiliary impeller shaft (20) of the auxiliary impeller in the auxiliary impeller chamber (8) is sealed and rotated on the inner wall of the auxiliary impeller chamber (8), and one end of the auxiliary impeller chamber (8) extends to a side of the auxiliary impeller chamber (8) close to the main impeller chamber (6); A transmission chamber (4) is provided between the main impeller shaft (11) and the auxiliary impeller shaft (20), and a clutch mechanism and a transmission ratio control mechanism are installed in the transmission chamber (4).

2. A multi-mode fire-fighting spray device according to claim 1, characterized in that: The transmission ratio control mechanism comprises: A transmission ratio adjustment frame (15), a translation frame (39) is rotatably mounted on the transmission ratio adjustment frame (15), a transmission sleeve (28) is fixed at the center of the translation frame (39), and transmission convex strips (37) uniformly distributed in a circumference are arranged on the outer side of one end of the transmission sleeve (28) away from the transmission ratio adjustment frame (15); both ends of the transmission convex strips (37) are arc-shaped smooth transition structures; A support seat (26), wherein a plurality of support seats (26) are linearly distributed along the movement path of the transmission sleeve (28), a rotating drum (32) is rotatably mounted on the inner side of the support seat (26), a driving gear (27) is fixed on the outer side of one end of the rotating drum (32), the driving gears (27) on different rotating drums (32) have different radii, a linkage groove (35) adapted to the transmission convex strip (37) is arranged on the inner side of the rotating drum (32), and an end of the linkage groove (35) is an arc-shaped transition structure that facilitates the insertion of the transmission convex strip (37); A driven gear (18), a third support frame (17) is fixed in the transmission chamber (4), the auxiliary impeller shaft (20) is rotatably mounted on the third support frame (17), a plurality of driven gears (18) are mounted on the outside of the auxiliary impeller shaft (20), the driven gears (18) are matched and meshed with the driving gears (27) one by one, and each pair of driven gears (18) and driving gears (27) has a different transmission ratio; A transmission ratio adjustment mechanism, the transmission ratio adjustment mechanism is used to control the translation of the transmission ratio adjustment frame (15), and based on the cooperation between the transmission convex strip (37) and the linkage groove (35) in each rotating drum (32), the transmission ratio is changed; The clutch mechanism controls the clutch transmission between the main impeller shaft (11) and the transmission sleeve (28).

3. A multi-mode fire spray device according to claim 2, characterized in that: The transmission ratio adjustment mechanism also includes: A first support frame (14), the first support frame (14) being fixed in the transmission chamber (4); A second support frame (23), the second support frame (23) being fixed in the transmission chamber (4); A guide rod (38), one end of the guide rod (38) is fixed to the first support frame (14), and the other end is fixed to the second support frame (23), and the transmission ratio adjustment frame (15) is slidably connected to the outer wall of the guide rod (38); A transmission ratio adjusting screw (16), the transmission ratio adjusting screw (16) being rotatably mounted between the first support frame (14) and the second support frame (23); A rotation driving unit is mounted on the second support frame (23) and is used to control the rotation of the transmission ratio adjusting screw (16).

4. A multi-mode fire-fighting spray device according to claim 1, characterized in that: The rotation driving unit comprises: A transmission ratio adjustment motor (22), the transmission ratio adjustment motor (22) being mounted on the second support frame (23) via a motor seat; A gear transmission assembly (21), wherein the output end of the transmission ratio adjustment motor (22) is transmission-connected to one end of the transmission ratio adjustment screw (16) via the gear transmission assembly (21); a support rod (24) is fixed to an outer wall of one side of the second support frame (23); and a transmission sleeve (28) is slidably and rotatably mounted on the outer side of the support rod (24).

5. A multi-mode fire spray device according to claim 2, characterized in that: A control module is arranged in the transmission chamber (4), and a control panel (9) is arranged on one side of the transmission chamber (4). The control panel (9), the control module and the transmission ratio adjustment motor (22) are electrically connected.

6. A multi-mode fire-fighting spray device according to claim 5, characterized in that: A connecting plate (34) is fixed to an outer wall on one side of the bottom of the transmission ratio adjustment frame (15); a reference block (33) is arranged at the bottom of one end of the connecting plate (34); a linearly distributed position detection sensor (19) is arranged in the transmission chamber (4); the position detection sensor (19) is located below the movement path of the reference block (33); and the position detection sensor (19) is electrically connected to the control module.

7. A multi-mode fire-fighting spray device according to claim 2, characterized in that: The clutch mechanism comprises: A transmission cylinder (30), the transmission cylinder (30) being rotatably mounted on an inner wall of the first support frame (14); A movable clamping block (41), a plurality of circumferentially distributed slideways are provided on the transmission cylinder (30), the movable clamping block (41) is slidably connected in the slideways, one end of the movable clamping block (41) is in a V-shaped structure, the movable clamping block (41) and the transmission cylinder (30) are connected via a spring (42), a clamping groove (31) cooperating with the movable clamping block (41) is provided on the main impeller shaft (11), and two edges of the clamping groove (31) away from the center of the main impeller shaft (11) are in an arc surface structure for facilitating insertion of the clamping groove (31); An annular mounting seat (36), an annular extrusion seat (43) rotatably mounted in the annular mounting seat (36), a side of the annular extrusion seat (43) close to the movable clamping block (41) having a bucket-shaped inclined surface structure, and a side of the movable clamping block (41) close to the annular extrusion seat (43) having an inclined surface structure; A transmission rod (29), one end of which is fixed to an outer wall of one side of a transmission cylinder (30); a translation frame (39) is rotatably mounted on the transmission ratio adjustment frame (15) and is slidably connected to the outer wall of the transmission rod (29); A clutch drive unit, the clutch drive unit is used to control the translation of the annular mounting seat (36).

8. A multi-mode fire-fighting spray device according to claim 7, characterized in that: The clutch drive unit comprises: A fixing frame (40), the fixing frame (40) being fixed to an outer wall of one side of the first supporting frame (14); A clutch control motor (12), the clutch control motor (12) is fixed on a fixing frame (40), and the output end of the clutch control motor (12) is drivingly connected to a clutch control screw (13); The translation frame (39) is fixed to the bottom of the annular mounting seat (36), the translation frame (39) is slidably connected to the outer wall of the fixed frame (40), and the translation frame (39) is connected to the outer wall of the clutch control screw (13) through a thread.

9. A multi-mode fire-fighting spray device according to claim 1, characterized in that: A top cover (7) is hingedly connected to one side of the top of the transmission chamber (4), and a fixing buckle cooperating with the top cover (7) is provided on the other side of the top of the transmission chamber (4).

10. A multi-mode fire-fighting spray device according to claim 2, characterized in that: The mounting frame (1) is provided with a lubricating oil supply device (2), the output end of the lubricating oil supply device (2) is connected to a supply pipe (3), one end of the supply pipe (3) is connected to a delivery pipe (10), a fixing buckle (25) is installed on one side of the support seat (26), the delivery pipe (10) is fixed on the fixing buckle (25), a joint is provided on the top of the support seat (26), a liquid tank is provided in the support seat (26), one end of the liquid tank is connected to the joint, and the other end of the liquid tank extends to the rotation gap between the support seat (26) and the rotating drum (32).

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