Trolley type fire extinguisher

Abstract

The utility model discloses a cart type fire extinguisher, and relates to the technical field of fire extinguishers. Comprising a fire extinguishing tank and a cart, the fire extinguishing tank is installed at the upper end of the cart, and the cart comprises a base and a main rod connecting frame; a sliding rod is pulled out of a sliding groove and fixed, then a rotating block is rotated downwards, a paddle wheel is moved to the lower portion, in this way, under driving of a driving motor, the paddle wheel rotates, the device is lifted, then an electric push rod is remotely controlled, the power end of the electric push rod is shrunk, and a fire extinguishing tank is thrown off and then falls into flames; under the combustion of flames, the fuze at the front end of the delay valve burns, and finally burns completely, so that the valve core is not blocked by the fuze any more, the valve core moves outwards under the pressure of the dry powder, and the dry powder enters the annular pipe and is finally sprayed out from each spray head, so that fire extinguishing is realized; and repeated fire extinguishing is performed.

Description

Technical Field

[0001] The present invention relates to the technical field of fire extinguishers, and particularly to a wheeled fire extinguisher. Background Art

[0002] The internal of a wheeled stored-pressure ABC dry powder fire extinguisher is filled with ammonium phosphate dry powder fire extinguishing agent and nitrogen, which is suitable for extinguishing the incipient fires of combustible solids, combustible liquids, combustible gases and live equipment. It is widely used in factories, warehouses, ships, gas stations, distribution rooms, vehicles and other places.

[0003] The existing wheeled fire extinguishers usually use a spray pipe to spray the internal dry powder. In this way, it is suitable for dealing with some fires with relatively small fire intensity. However, for some fires with relatively large fire intensity, the wheeled fire extinguisher has little effect. The spraying distance and spraying volume are not enough to deal with the fires with relatively large fire intensity. Moreover, after the dry powder in the fire extinguishing tank is exhausted, reinstalling the fire extinguishing tank is too cumbersome, which affects the fire extinguishing efficiency. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a wheeled fire extinguisher to solve the problems raised in the above background art.

[0005] A wheeled fire extinguisher includes a fire extinguishing tank and a trolley. The fire extinguishing tank is installed at the upper end of the trolley. The trolley includes a base and a main rod connecting frame. There are two main rods in total, which are respectively fixedly connected to the upper ends of the left and right sides of the base. The fire extinguishing tank is placed on the upper end of the base. A connecting frame is fixedly connected between the two main rods and at the rear end of the fire extinguishing tank.

[0006] Chutes are opened at both the upper and lower ends of the main rod. A sliding rod is slidably connected inside the chute. A driving motor is installed at the front end of the outer side of the sliding rod. A rotating block is rotatably connected to the rear end of the sliding rod. A transmission shaft is rotatably connected to the outer side of the rotating block. An impeller is fixedly connected to the outer side of the transmission shaft. A circular groove is opened inside the inner side of the transmission shaft. A toothed rod is slidably connected inside the circular groove. The inner side of the toothed rod penetrates through the rotating block and is slidably connected thereto.

[0007] A valve is arranged at the upper end of the fire extinguishing tank. A stop valve and a delay valve are fixedly connected to the front end of the valve. A fire extinguishing pipe is fixedly connected to the front end of the DC valve. Annular pipes that communicate with each other are fixedly connected to both the upper and lower ends of the outer side of the fire extinguishing tank. A plurality of nozzles are installed on the outer side of the annular pipe. The delay valve communicates with the annular pipe.

[0008] Furthermore, a controller is installed at the bottom of the base. An electric push rod is fixedly connected to the rear end of the main rod. Clips are fixedly connected to both the left and right sides of the front end of the fire extinguishing tank.

[0009] Further, a drive shaft is fixedly connected to the power output end of the drive motor. A clamping tooth is provided at the end of the drive shaft. The drive shaft penetrates into the inside of the rotating block and is rotatably connected thereto.

[0010] Further, a plurality of buckles are installed at the front end of the connecting frame. The fire extinguishing pipe is spirally arranged at the front end of the connecting frame and is detachably connected to the buckles.

[0011] Further, a limiting strip is arranged inside the sliding groove. A limiting groove is opened on the outer side of the toothed rod. The limiting strip is inserted into the limiting groove and is slidably connected thereto. Both the upper and lower ends of the outer side of the toothed rod penetrate through the transmission shaft and are slidably connected thereto.

[0012] Further, a spring is sleeved on the outer side of the toothed rod and inside the rotating block. The inner and outer sides of the spring are respectively fixed to the inner wall of the toothed rod and the inner side of the transmission shaft.

[0013] Further, a clamping groove is opened on the inner side of the sliding rod. The clamping groove extends to the inner side of the rotating block. Slots are opened at both the upper and lower ends of the bottom of the clamping groove. Insertion slots are opened on both the upper and lower sides at the front end inside the vertical rod. An insertion pin is slidably connected inside the insertion slot. The insertion pin is respectively slidably connected and inserted into the clamping groove and the slot.

[0014] Further, a fuse is filled at the end of the delay valve. A valve core is slidably arranged inside the delay valve and on the inner side of the fuse.

[0015] Further, a retaining ring is fixedly connected to the inner wall of the stop valve. A sliding ring is slidably arranged at the front end of the stop valve and on the front side of the retaining ring. The rear end of the sliding ring penetrates through the retaining ring and is fixedly connected to a piston. A sleeve is fixedly connected to the inside of the end of the fire extinguishing pipe. The sleeve is inserted into the stop valve and contacts the sliding ring.

[0016] Further, the impeller is arranged in a double layer.

[0017] Further, the upper end of the fire extinguishing pipe is a rigid plastic pipe and the lower end is a rubber hose. Clamping hooks are fixedly connected to both the left and right sides of the upper end of the fire extinguishing pipe. Clamping posts are fixedly connected to both the left and right sides of the stop valve. The clamping hooks are clamped with the clamping posts.

[0018] Further, small fire extinguishing balls are embedded inside the nozzle.

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: For this kind of push-cart type fire extinguisher, by extending the power output end of the electric push rod, the clamping strip on the fire extinguishing tank is clamped. In this way, not only can the fire extinguishing tank be fixed, but also the disassembly and assembly can be carried out quickly, improving the fire extinguishing efficiency.

[0020] When the device is used on the ground, through the double-layer slurry impellers, the fire extinguishing tank can be quickly moved to the fire scene for use; and the fire extinguishing pipe connected to the front end of the connecting frame through a buckle can not only be quickly removed during fire extinguishing to save preparation time, but also be convenient to install after fire extinguishing is completed, avoiding the mess of the fire extinguishing pipe and making it inconvenient to organize;

[0021] During flight, by pulling out the sliding rod and rotating the rotating block, the toothed rod is engaged with the driving shaft, so that the driving motor can drive the slurry impeller to rotate, thereby lifting the device. By setting it in this way, it is convenient to adjust the slurry impeller, so that when it rolls on the ground, it can rotate directly without being driven by the driving motor, which can not only save energy, but also avoid the slurry impeller driving the driving motor in reverse, resulting in damage to the driving motor;

[0022] During flight fire extinguishing, by controlling the electric push rod, the fire extinguishing tank is no longer fixed to the trolley, so that the fire extinguishing tank falls downward under gravity, the hook disengages from the clamping column, and the fire extinguishing pipe also disengages from the stop valve, causing the stop valve to close. In this way, the dry powder in the fire extinguishing tank will enter the extension valve. Under the combustion of the flame, the small fire extinguishing balls in the nozzle will be ignited, and then explode for preliminary fire extinguishing. After the fuse is ignited and burned out, the dry powder will enter the annular pipe and be ejected from the nozzle for large-scale fire extinguishing, and the small fire extinguishing balls that have not been detonated will be ejected by the dry powder and fly into the flame for detonation; and the trolley part after throwing the fire extinguishing tank will return to reload the fire extinguishing tank for repeated fire extinguishing. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the whole of the present invention;

[0024] Figure 2 It is a side view of the whole of the present invention;

[0025] Figure 3 It is a schematic diagram of the disassembly of the fire extinguishing tank of the present invention;

[0026] Figure 4 It is a schematic diagram of the section of the vertical rod of the present invention;

[0027] Figure 5 It is a schematic diagram of the sliding rod of the present invention;

[0028] Figure 6 It is a schematic diagram of the disassembly of the toothed rod of the present invention;

[0029] Figure 7 It is a schematic diagram of the section of the transmission rod of the present invention;

[0030] Figure 8 It is a schematic diagram of the fire extinguishing tank of the present invention;

[0031] Figure 9Front view of the fire extinguishing tank of the present invention;

[0032] Figure 10 Schematic diagram of the operation of the present invention;

[0033] Figure 11 Schematic diagram of the cross-section of the stop valve of the present invention;

[0034] Figure 12 Schematic diagram of the stop valve of the present invention;

[0035] Figure 13 Schematic diagram of the cross-section of the nozzle of the present invention.

[0036] In the figure: fire extinguishing tank - 1, base - 2, main rod - 3, controller - 4, impeller - 5, drive motor - 6, valve - 7, connecting frame - 8, fire extinguishing pipe - 9, electric push rod - 10, sliding rod - 11, sliding groove - 12, pin slot - 13, pin - 14, rotating block - 15, slot - 16, transmission shaft - 17, rack - 18, drive shaft - 19, spring - 20, circular groove - 21, clamping strip - 22, annular pipe - 23, nozzle - 24, stop valve - 25, delay valve - 26, fuse - 27, valve core - 28, sleeve - 29, slip ring - 30, piston - 31, retaining ring - 32, clamping post - 33, hook - 34, small fire extinguishing ball - 35. Detailed implementation manner

[0037] Please refer to Figures 1-13 , the present invention provides a technical solution: a trolley - type fire extinguisher, including a fire extinguishing tank 1 and a trolley. The fire extinguishing tank 1 is installed at the upper end of the trolley. The trolley includes a base 2, main rods 3 and a connecting frame 8. There are two main rods 3 in total, which are respectively fixedly connected to the upper ends of the left and right sides of the base 2. The fire extinguishing tank 1 is placed on the upper end of the base 2. A connecting frame 8 is fixedly connected between the two main rods 3 and at the rear end of the fire extinguishing tank 1. A controller 4 is installed at the bottom of the base 2. An electric push rod 10 is fixedly connected to the rear end of the main rod 3. Clamping strips 22 are fixedly connected to the left and right sides of the front end of the fire extinguishing tank 1;

[0038] By controlling the power output end of the electric push rod 10 to extend through the controller 4, the power output end of the electric push rod 10 restricts the clamping strip 21 on the fire extinguishing tank 1. In this way, the fire extinguishing tank 1 is fixed on the trolley, which is convenient for moving the fire extinguishing tank 1 and convenient for extinguishing fires. Also, it is very convenient to replace the fire extinguishing tank 1;

[0039] Chute 12 is provided at both the upper and lower ends of the main rod 3. A slide bar 11 is slidably connected inside the chute 12. A drive motor 6 is installed at the front end of the outer side of the slide bar 11. The rear end of the slide bar 11 is rotatably connected with a rotating block 15. The outer side of the rotating block 15 is rotatably connected with a transmission shaft 17. A slurry impeller 5 is fixedly connected to the outer side of the transmission shaft 17. A circular groove 21 is provided inside the inner side of the transmission shaft 17. A toothed rod 18 is slidably connected inside the circular groove 21. The inner side of the toothed rod 18 penetrates through the rotating block 15 and is slidably connected therewith. A number of buckles are installed at the front end of the connecting frame 8. The fire extinguishing pipe 9 is spirally arranged at the front end of the connecting frame 8 and is detachably connected with the buckles. A valve 7 is provided at the upper end of the fire extinguishing tank 1. The slurry impeller 5 is arranged in a double layer;

[0040] During normal fire extinguishing, by tilting the trolley, only two slurry impellers 5 at the bottom of the trolley are in contact with the ground. Since the slurry impeller 5 is only fixed to the transmission shaft 17, and the transmission shaft 17 is rotatably connected with the rotating block 15, the slurry impeller 15 and the transmission shaft 17 can rotate freely. Moreover, the slurry impeller 5 is arranged in a double layer, which increases the strength of the slurry impeller 5 and the load-bearing capacity of the trolley. In this way, the fire extinguishing tank 1 can be moved. After moving to the vicinity of the fire site, the fire extinguishing pipe 9 is removed from the buckle on the connecting frame 8, and then the valve 7 is opened, so that the dry powder in the fire extinguishing tank 1 is ejected from the fire extinguishing pipe 9 to extinguish the fire;

[0041] The power output end of the drive motor 6 is fixedly connected with a drive shaft 19. A clamping tooth is provided at the end of the drive shaft 19. The drive shaft 19 penetrates into the inside of the rotating block 15 and is rotatably connected therewith. A limiting strip is provided inside the chute 21. A limiting groove is provided on the outer side of the toothed rod 18. The limiting strip is inserted into the limiting groove and is slidably connected therewith. The upper and lower ends of the outer side of the toothed rod 18 penetrate through the transmission shaft 17 and are slidably connected therewith. A spring 20 is sleeved on the outer side of the toothed rod 18 and inside the rotating block 15. The inner and outer sides of the spring 20 are respectively fixed to the inner wall of the toothed rod 18 and the inner side of the transmission shaft 17. A clamping groove is provided inside the inner side of the slide bar 11, and the clamping groove extends to the inner side of the rotating block 15. Insertion slots 16 are provided at the upper and lower ends of the bottom of the clamping groove. Insertion slots 13 are provided at the upper and lower sides of the front end inside the vertical rod 3. A bolt 15 is slidably connected inside the insertion slot 13. The bolt 15 is respectively slidably connected and inserted into the clamping groove and the insertion slot 16;

[0042] When the flame position is too high or too far away and the fire extinguishing pipe 9 cannot effectively extinguish the flame, the trolley can be turned over at this time, so that the fire extinguishing tank 1 is downward and the connecting frame 8 is upward. Then, while holding the bolt 14, the sliding rod 11 is pulled out of the chute 12, so that the bolt 14 slides in the clamping groove. Finally, the bolt 14 will enter the inner slot 16. Then, the bolt 14 is released, and the sliding rod 11 is fixed by the bolt 14 and the slot 16. Then, by pulling the toothed rod 18 outward, the toothed rod 18 slides in the rotating block 15 and the circular groove 21. Then, while keeping pulling the toothed rod 18, the rotating block 15 is rotated, so that the inner side of the toothed rod 18 is aligned with the drive shaft 19. Finally, the toothed rod 18 is released, so that the toothed rod 18 moves forward under the elastic force of the spring 20, so that the toothed rod 18 meshes with the teeth on the drive shaft 19;

[0043] The power output end of the drive motor 6 drives the drive shaft 19 to rotate, so that the drive shaft 19 drives the toothed rod 18 to rotate. The toothed rod 18 slides with the transmission shaft 17 through the limiting rod and the limiting groove. Therefore, the drive shaft 19 will drive the transmission shaft 17 to rotate. In this way, the paddle impeller 5 will rotate under the drive of the drive motor 6, so as to generate lift and make the whole device fly up, so that the device reaches above the flame;

[0044] A check valve 25 and a delay valve 26 are fixedly connected to the front end of the valve 7. A fire extinguishing pipe 9 is fixedly connected to the front end of the DC valve 25. Both the upper and lower ends of the outer side of the fire extinguishing tank 1 are fixedly connected with a mutually penetrating annular pipe 23. A plurality of spray nozzles 24 are installed on the outer side of the annular pipe 23. The delay valve 26 is communicated with the annular pipe 23. A fuse 27 is filled at the end of the delay valve 26. A valve core 28 is slidably arranged inside the delay valve 26 and on the inner side of the fuse 27. A retaining ring 32 is fixedly connected to the inner wall of the check valve 25. A sliding ring 30 is slidably arranged at the front end of the check valve 25 and in front of the retaining ring 32. The rear end of the sliding ring 30 passes through the retaining ring 32 and is fixedly connected with a piston 31. A sleeve 29 is fixedly connected to the inner part of the end of the fire extinguishing pipe 9. The sleeve 29 is inserted into the check valve 25 and contacts the sliding ring 30. The upper end of the fire extinguishing pipe 9 is a rigid plastic pipe and the lower end is a rubber hose. Hooks 34 are fixedly connected to both the left and right sides of the upper end of the fire extinguishing pipe 9. Clamping posts 35 are fixedly connected to both the left and right sides of the check valve 25. The hooks 34 are clamped with the clamping posts 35. Small fire extinguishing balls 25 are embedded inside the spray nozzles 24;

[0045] After that, when the device flies above the flame, the power end of the electric push rod 10 is remotely controlled to contract, so that the clamping strip 21 is no longer restricted. Since the fire extinguishing tank 1 is located at the lower end in this way, the fire extinguishing tank 1 will fall downward. Since the fire extinguishing pipe 9 is connected to the stop valve 25 through the hook 34 and the clamping column 35, when the fire extinguishing tank 1 falls downward, the hook 34 will drive the fire extinguishing tank 1 to turn with the clamping column 35 as the center. When it turns to 90 degrees, the fire extinguishing pipe 9 will move away from the front end of the stop valve 25, and the hook 34 will disengage from the clamping column 35, so that the sleeve 29 moves out of the stop valve 25. In this way, the slip ring 30 will no longer be restricted by the sleeve 29, and thus drive the piston 21 to move outward, so that the piston 21 contacts the retaining ring 32. In this way, the piston 21 and the retaining ring 32 block the stop valve 25 to close it, and the dry powder inside the fire extinguishing tank 1 will enter the delay valve 26;

[0046] After that, the fire extinguishing tank 1 will fall into the flame. Under the combustion of the flame, the small fire extinguishing balls 35 inside the nozzle 24 are detonated, so that the dry powder inside the small fire extinguishing balls 35 is scattered around, thus initially extinguishing the flame. And the fuse 27 at the front end of the delay valve 26 will also be ignited and finally burned out. In this way, the valve core 28 will no longer be blocked by the fuse 27, and thus move outward under the pressure of the dry powder. In this way, the dry powder will enter the annular pipe 23 and finally be sprayed out to the outside from each nozzle 24, thus achieving fire extinguishing. And the unlit small fire extinguishing balls 25 can also be extruded outward, so that the small fire extinguishing balls 25 fly into the flame to be detonated. And the trolley part can return to reload the fire extinguishing tank 1 and carry out repeated fire extinguishing.

Claims

1. A cart-type fire extinguisher, comprising a fire extinguishing tank (1) and a cart, wherein the fire extinguishing tank (1) is installed at the upper end of the cart, and is characterized in that: The cart includes a base (2), a main rod (3), and a connecting frame (8). There are two main rods (3) in total, which are respectively fixedly connected to the upper ends of the left and right sides of the base (2). The fire extinguishing tank (1) is placed on the upper end of the base (2). A connecting frame (8) is fixedly connected between the two main rods (3) and at the rear end of the fire extinguishing tank (1); Chute (12) is provided at both the upper and lower ends of the main rod (3). A slide rod (11) is slidably connected inside the chute (12). A drive motor (6) is installed at the front end of the outer side of the slide rod (11). A rotating block (15) is rotatably connected to the rear end of the slide rod (11). A transmission shaft (17) is rotatably connected to the outer side of the rotating block (15). An impeller (5) is fixedly connected to the outer side of the transmission shaft (17). A circular groove (21) is provided inside the transmission shaft (17). A toothed rod (18) is slidably connected inside the circular groove (21). The inner side of the toothed rod (18) penetrates through the rotating block (15) and is slidably connected thereto; A valve (7) is provided at the upper end of the fire extinguishing tank (1). A stop valve (25) and a delay valve (26) are fixedly connected to the front end of the valve (7). A fire extinguishing pipe (9) is fixedly connected to the front end of the direct current valve (25). Annular pipes (23) that communicate with each other are fixedly connected to both the upper and lower ends of the outer side of the fire extinguishing tank (1). A plurality of spray nozzles (24) are installed on the outer side of the annular pipe (23). The delay valve (26) communicates with the annular pipe (23).

2. The cart-type fire extinguisher according to claim 1, wherein: A controller (4) is installed at the bottom of the base (2). An electric push rod (10) is fixedly connected to the rear end of the main rod (3). Clips (22) are fixedly connected to both the left and right sides of the front end of the fire extinguishing tank (1).

3. A push-cart fire extinguisher according to claim 1, characterized in that: A drive shaft (19) is fixedly connected to the power output end of the drive motor (6). A toothed portion is provided at the end of the drive shaft (19). The drive shaft (19) penetrates into the rotating block (15) and is rotatably connected thereto.

4. A push-cart fire extinguisher according to claim 1, characterized in that: A plurality of buckles are installed at the front end of the connecting frame (8). The fire extinguishing pipe (9) is spirally arranged at the front end of the connecting frame (8) and is detachably connected to the buckles.

5. The cart-type fire extinguisher according to claim 1, characterized in that: A limiting strip is provided inside the chute (21). A limiting groove is provided on the outer side of the toothed rod (18). The limiting strip is inserted into the limiting groove and is slidably connected thereto. Both the upper and lower ends of the outer side of the toothed rod (18) penetrate through the transmission shaft (17) and are slidably connected thereto.

6. The cart-type fire extinguisher according to claim 1, characterized in that: A spring (20) is sleeved on the outer side of the toothed rod (18) and inside the rotating block (15). The inner and outer sides of the spring (20) are respectively fixed to the inner wall of the toothed rod (18) and the inner side of the transmission shaft (17).

7. The cart-type fire extinguisher according to claim 1, characterized in that: A clamping groove is formed inside the sliding rod (11), the clamping groove extends to the inside of the rotating block (15), insertion slots (16) are formed at both the upper and lower ends of the bottom of the clamping groove, insertion pin grooves (13) are formed at both the upper and lower sides of the front end inside the vertical rod (3), an insertion pin (15) is slidably connected inside the insertion pin groove (13), and the insertion pin (15) is slidably connected and inserted into the clamping groove and the insertion slots (16) respectively.

8. A push-cart type fire extinguisher according to claim 1, characterized in that: A fuse (27) is filled at the end of the delay valve (26), and a valve core (28) is slidably arranged inside the delay valve (26) and on the inner side of the fuse (27).

9. The cart-type fire extinguisher according to claim 1, characterized in that: A retaining ring (32) is fixedly connected to the inner wall of the flow stop valve (25), a sliding ring (30) is slidably arranged at the front end of the flow stop valve (25) and on the front side of the retaining ring (32), the rear end of the sliding ring (30) penetrates through the retaining ring (32) and is fixedly connected to a piston (31), a sleeve (29) is fixedly connected to the inside of the end of the fire extinguishing pipe (9), and the sleeve (29) is inserted into the flow stop valve (25) and contacts the sliding ring (30).

10. A wheeled fire extinguisher according to claim 1, characterized in that: The impeller (5) is arranged in a double layer.

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