Fire-fighting emergency mobile water supply and drainage device

Abstract

A fire-fighting emergency mobile water supply and drainage device comprises a self-priming water pump body, a hand buggy, a positioning seat, a rotating wheel mechanism, a water level detection circuit, a signal output circuit and a receiving circuit, a limiting plate is installed at the rear side end of the hand buggy, a threaded pipe is installed at the lower end of the limiting plate, a lead screw is installed at the upper end of the positioning seat, and the upper end of the lead screw is connected with the lower end of the threaded pipe. A plurality of fixing grooves are distributed in the outer sides of the wheels at the two side ends of the cart respectively, and the inner sides of the fixing pipes of the rotating wheel mechanisms and the fixing grooves of the wheels are installed together; the self-priming water pump body is mounted on the limiting plate; two metal sheets of the water level detection circuit are mounted on the outer side of a water inlet pipe of the self-priming water pump body; and the water level detection circuit and the signal output circuit are arranged in the element box. The device not only can be transferred on the ground, but also can be conveniently transferred to a related position through the rotating wheel mechanism via stairs; when the water quantity is too small, firefighters can be prompted in time, convenience is brought to the firefighters, the working efficiency is improved, and the damage probability of the water pump is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply and drainage equipment, in particular to a fire emergency mobile water supply and drainage device. Background Art

[0002] In residential areas, factory warehouses and other areas, after the ground is flooded due to various reasons such as heavy rain, or after water accumulates in high places in residential areas, warehouses and other areas due to leakage and other reasons, in order to reduce the losses caused by flooding, the fire department sometimes uses water pumps to drain the accumulated water in the corresponding areas as soon as possible. In addition, when a fire occurs in the relevant area, but it has water storage equipment (such as a water tank in a factory), the fire department also has the possibility of using a water pump to pump out the water in the water tank for water supply and fire extinguishing operations. In actual situations, in areas where water pumps are not installed, in the prior art, firefighters usually transport water pumps from other places to the scene by vehicle or other means, and then assemble them on site and subsequently perform water supply and drainage operations.

[0003] Although the above-mentioned water pump water supply and drainage method meets the needs to a certain extent, it is limited by the structure and still has some specific problems as follows. (1): There is no special transport carrier for water pumps. Vehicle transportation is not only costly but also large in size. The area of ​​the water accumulation site is limited. Especially when the water supply and drainage operation area is located in a higher residential building, office, warehouse, etc., due to the existence of stairs, the firefighters have to manually lift the water pump to the corresponding area, which will cause inconvenience to the firefighters and is not conducive to improving the efficiency of drainage or water supply fire fighting. (2): During work, the staff needs to observe the water level in the corresponding area (such as the depth of the water on the ground or the depth in the water tank). When the water level drops below the threshold, in order to prevent the water pump from being idling, the power supply of the water pump needs to be turned off in time. The above-mentioned method not only brings inconvenience to the firefighters, but also when the firefighters fail to observe the low water level in time, the water pump will idle for a relatively long time, which will not only waste electricity but also increase the probability of damage (some water pump motors are cooled by the water discharged by the water pump. Therefore, when there is no water, the motor has the probability of being damaged by lack of water cooling and overheating). Utility Model Content

[0004] In order to overcome the drawbacks of existing water pump-based water supply and drainage equipment as described in the background due to structural limitations, the utility model provides a fire emergency mobile water supply and drainage device based on a water pump body, which can not only be transferred on the ground during application, but also can be conveniently transferred to relevant working positions through stairs, and can monitor the water level in the corresponding area in real time during operation, and can promptly remind firefighters wirelessly when the water volume is too low, thereby bringing convenience to firefighters, and correspondingly improving work efficiency and reducing the probability of water pump damage.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The fire emergency mobile water supply and drainage device comprises a self-priming water pump body, a handcart, a positioning seat, and a rotating wheel mechanism, and is characterized in that it also has a water level detection circuit, a signal output circuit, and a receiving circuit; a limit plate is installed on the rear side end of the handcart, a wire tube is installed at the lower end of the limit plate, a screw rod is installed at the upper end of the positioning seat, and the upper end of the screw rod and the lower end of the wire tube are connected by threads; a plurality of internal thread fixing grooves are respectively distributed on the outer sides of the wheels at both side ends of the handcart, and the rotating wheel mechanism has multiple sets of the same, and each set of the rotating wheel mechanism comprises a fixed tube, a ladder wheel, and a fixed tube inner thread fixing groove. The side has an external thread, a shaft rod is installed at the outer end of the fixed tube, and the ladder wheel is rotatably installed at the outer end of the shaft rod; the inner side of the fixed tube of the multiple sets of rotating wheel mechanisms and the multiple fixing grooves of the wheel are respectively installed together through threads; the self-priming water pump body is installed on the limit plate; the water level detection circuit is equipped with at least two metal sheets, and the two metal sheets are insulated and installed at the outer end of the water inlet pipe of the self-priming water pump body; the water level detection circuit and the signal output circuit are installed in the component box; the signal output of the water level detection circuit is electrically connected to the signal input end of the signal output circuit.

[0007] Furthermore, a locking nut is installed between the inner side of the fixing tube and the fixing groove.

[0008] Furthermore, the water inlet pipe of the self-priming water pump body is located at the lower end of the limit plate, and when the lower end of the positioning seat contacts the ground, the height of the lower end of the water inlet pipe is higher than the height of the lower end of the positioning seat.

[0009] Furthermore, the water level detection circuit includes an electrically connected three-terminal voltage detector, a transistor, and a resistor, and is connected to two metal sheets. The power input terminal of the three-terminal voltage detector is connected to the collector of the first transistor, the base of the first transistor is connected to the collector of the second transistor, the base of the second transistor is connected to one end of the resistor, the other end of the resistor is connected to one end of one of the metal sheets, the other end of the other metal sheet is connected to the emitter of the first transistor, and the emitter of the second transistor is connected to the negative power input terminal of the three-terminal voltage detector.

[0010] Furthermore, the signal output circuit includes an electrically connected resistor and transistor, a relay and a wireless transmitting circuit module, the transistor emitter is connected to the relay control power input terminal, the transistor collector is connected to the relay positive power input terminal, the relay negative power input terminal is connected to the negative power input terminal of the wireless transmitting circuit module, the top of the relay normally open output is connected to the positive power input terminal of the wireless transmitting circuit module, the two contacts under one of the wireless signal transmission buttons of the wireless transmitting circuit module are connected together, and one end of the resistor is connected to the transistor base.

[0011] Furthermore, the receiving circuit includes an electrically connected battery, a wireless receiving circuit module and a buzzer, the two poles of the battery are connected to the power input ends of the wireless receiving circuit module, and the power output end of the wireless transmitting circuit module is connected to the power input ends of the buzzer respectively.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention is based on a water pump body, which can not only be transferred to a different position on the ground by means of wheels during use, but can also be conveniently transferred to a related working position via stairs by means of a rotating wheel mechanism installed; (2) The water level detection circuit and the signal output circuit can monitor the water level in the corresponding area in real time during operation, and can promptly notify firefighters wirelessly when the amount of water is too low. Personnel who are not on site can promptly go to the site to turn off the power supply of the water pump body after receiving the wireless signal through the receiving circuit, thereby bringing convenience to firefighters, and correspondingly improving work efficiency and reducing the chance of water pump damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the self-priming water pump body of the utility model.

[0016] Figure 3 , 4 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0017] Figure 1 , 2As shown in , 3, and 4, the fire emergency mobile water supply and drainage device includes a self-priming water pump body 1, a handcart 2, a power module W, a positioning seat 3, a rotating wheel mechanism 4, and also has a water level detection circuit 5, a signal output circuit 6, and a receiving circuit; a limit plate 21 is welded on the rear side end of the handcart 2, a wire tube 22 is welded in the middle of the lower left end of the limit plate 21, and a screw rod 31 is vertically welded in the middle of the upper end of the positioning seat 3, and the upper end of the screw rod 31 and the lower end of the wire tube 22 are connected by threads; three internal thread fixing grooves 23 are distributed at annular intervals on the outer ends of the wheels at both sides of the handcart 2, and the rotating wheel mechanism 4 has six identical sets, each set of the rotating wheel mechanism includes a fixed tube 41 and a ladder wheel 42, and the inner part of the fixed tube 41 The side has external threads, and a shaft 43 is welded longitudinally on the outer end of the fixed tube. The inner ring of the bearing 44 in the middle of the ladder wheel 42 is tightly mounted on the outer end of the shaft 43; the inner sides of the six fixed tubes 41 of the two sets of rotating wheel mechanisms are respectively screwed into the six fixed grooves 23 of the two wheels through threads; the self-priming water pump body 1 is bolted to the upper end of the limit plate 21; the water level detection circuit is equipped with two copper sheets T, and the two copper sheets T are installed on a plastic plate with a distance from each other, and the plastic plate is glued to the left outer end of the water inlet pipe 101 of the self-priming water pump body 1; the power module W, the water level detection circuit 5, and the signal output circuit 6 are installed in the waterproof component box 7, and the component box 7 is installed in the middle of the upper end of the pull rod of the handcart 1. A protective shell 9 is installed on the self-priming water pump body 1 and the upper end of the limit plate 21.

[0018] Figure 1 , 2, 3, 4, when the inner sides of the six fixing pipes 41 are respectively screwed into the inner threads of the fixing grooves 23 of the wheels, a locking nut 24 is screwed in between the fixing pipes 41 and the outer sides of the wheel fixing grooves 23 (to prevent the fixing pipes from rotating after being fixed). The water inlet pipe 101 of the self-priming water pump body 1 is located at the lower end of the limit plate 21 (where the limit plate has an opening), and when the lower end of the positioning seat 3 touches the ground, the lower end height of the water inlet pipe 101 is slightly higher than the lower end height of the positioning seat 3. The water level detection circuit includes a three-terminal voltage detector W1, transistors Q1 and Q2, and a resistor R1 which are connected via circuit board wiring and are connected via wires via two copper sheets T. Pin 2 of the power input terminal of the three-terminal voltage detector W1 is connected to the collector of the first transistor Q2, the base of the first transistor Q2 is connected to the collector of the second transistor Q1, the base of the second transistor Q1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to one end of one of the copper sheets T, the other end of the other copper sheet T is connected to the emitter of the first transistor Q2, and the emitter of the second transistor Q1 is connected to pin 3 of the negative power input terminal of the three-terminal voltage detector W1. The signal output circuit includes a resistor R2 and a transistor Q3, a relay J1 and a wireless transmitting circuit module W2 connected via circuit board wiring, the emitter of the transistor Q2 is connected to the control power input end of the relay J1, the collector of the transistor Q2 is connected to the positive power input end of the relay J1, the negative power input end of the relay J1 is connected to the negative power input end 2 pin of the wireless transmitting circuit module W2, the normally open contact end of the relay J1 is connected to the positive power input end 1 pin of the wireless transmitting circuit module W2, the two contacts under the first wireless signal transmitting button D1 of the wireless transmitting circuit module W2 are connected together, and the base of the transistor Q2 is connected to one end of the resistor R2. The receiving circuit includes a battery G1 and a charging socket CZ, a power switch S1, a wireless receiving circuit module W3 and a buzzer B which are installed in a housing 8 (carried by firefighters) and connected via circuit board wiring. The two poles of the battery G1 are respectively connected to the two ends of the charging socket CZ (when the battery G1 is out of power, an external 12V power charger plug can be inserted into the charging socket CZ to charge the battery G1), and are respectively connected in series with the power input ends 1 and 2 of the wireless receiving circuit module W3 through the power switch S1, and the power output ends 3 and 2 of the wireless transmitting circuit module W3 are respectively connected to the two ends of the power input of the buzzer B.

[0019] Figure 1 , 2As shown in Figures 3 and 4, the power input terminal of the self-priming water pump body 1 is connected in series through a power switch, the power input terminal pins 1 and 2 of the power module W and the two poles of the AC 220V power supply are connected through wires, the power output terminals 3 and 4 of the power module W and the power input terminal transistor Q2 emitter and transistor Q1 emitter of the water level detection circuit, the power input terminal relay J1 control power input terminal and the negative power input terminal of the signal output circuit are connected through wires, and the signal output terminal voltage detector W1 of the water level detection circuit and the other end of the signal input terminal resistor R2 of the signal output circuit are connected through wires.

[0020] Figure 1 , 2 As shown in Figures 3 and 4, the utility model is based on the water pump body 1. In application, it can not only be used on the ground, the staff pulls the handle of the vehicle body (handcart 2) and then transfers the position to the corresponding area through the wheels for operation, but also when it is necessary to climb stairs, the fixing pipes 41 of the six sets of rotating wheel mechanisms are respectively installed together in the fixing grooves 23 at the side ends of the wheels of the handcart 2 through threads (and the locking nuts 24 are tightened), and then the vehicle body handle is pulled to move from the lower part of the stairs to the higher part (each wheel drives the three sets of rotating wheel mechanisms to rotate respectively, and then the three climbing wheels of each set of rotating wheel mechanisms cyclically move from bottom to top on the stairs to reach the higher part of the stairs; or the three climbing wheels of each set of rotating wheel mechanisms cyclically move from top to bottom on the stairs to reach the lower part of the stairs). After arriving at the operation area, the firefighters vertically set the equipment deep in the water accumulation area or deep in the water tank. The water inlet pipe 101 of the self-priming water pump body 1 is located at the lower end of the limit plate (where the limit plate has an opening), and when the lower end of the positioning seat 3 touches the ground, the lower end height of the water inlet pipe 101 is slightly higher than the lower end height of the positioning seat 3. After turning on the power switch of the self-priming water pump 1, the water inlet pipe 101 of the self-priming water pump 1 pumps out the water in the corresponding area at the same time as the self-priming water pump 1 is powered, and then the water in the corresponding area is pumped out through the drainage pipe connected to the outlet pipe of the self-priming water pump 1, and the water is used to extinguish the fire in the corresponding area or the water in the corresponding area is discharged to other locations (such as to the sewer).

[0021] Figure 1 , 2As shown in Figures 3 and 4, after the AC 220V power supply enters the power input terminal of the power module W, the 3rd and 4th pins of the power module W output a stable DC 12V power supply to enter the power input terminal of the water level detection circuit and the signal output circuit. After the firefighter turns on the power switch S1 of the portable receiving circuit, the power input terminal of the wireless transmitting circuit module W3 is powered. When the water level at the corresponding position is sufficient, the water submerges the two copper sheets T, and the 12V power supply enters the base of the transistor Q1 (higher than 0.7V) through the water, the two copper sheets T, and the resistor R1. The transistor Q1 conducts the collector to output a low level and enters the base of the transistor Q2. The transistor Q2 conducts the collector to output a high level and enters the 2nd pin of the three-terminal voltage detector W1 (higher than the internal 4.75V threshold voltage of the three-terminal voltage detector W1). The 1st pin of the three-terminal voltage detector W1 outputs a high level, and the wireless transmitting circuit module W2 will not transmit the first wireless closing signal. When the water level at the corresponding position is not enough, the water no longer submerges the two copper sheets T, and the 12V power supply no longer enters the base of the transistor Q1 (the resistance is infinite) through the water, the two copper sheets T, and the resistor R1. The collector of the transistor Q1 is cut off and no longer outputs a low level to enter the base of the transistor Q2. The collector of the transistor Q2 is cut off and no longer outputs a high level to enter the 2nd pin of the three-terminal voltage detector W1. The 1st pin of the three-terminal voltage detector W1 outputs a low level, and the low level enters the base of the transistor Q3 through the resistor R2 for voltage reduction and current limiting. The collector of the transistor Q3 is turned on and outputs a high level to enter the positive power input terminal of the relay J1. The relay J1 is energized to close its control power input terminal and the normally open contact terminal, and then the wireless transmitting circuit module W2 is energized to transmit the first wireless closing signal (the two contacts under the wireless signal transmitting button D1 are connected together). After the wireless receiving circuit module W3, which is not near the firefighters on the scene, receives the wireless signal, its 3rd pin outputs a high level and enters the positive power input terminal of the buzzer B. The buzzer B is energized and sounds to remind the firefighters that the water on the scene is lower than the position of the two copper sheets T (it will be completely drawn). Through the above, the application of the utility model can not only transfer the position on the ground through the wheels, but also be conveniently transferred to the relevant working position through the stairs by installing a rotating wheel mechanism; it can monitor the water level in the corresponding area in real time during work, and can promptly remind the firefighters wirelessly when the water volume is too low. After the personnel who are not on the scene receive the wireless signal through the receiving circuit, they can go to the scene in time to turn off the power supply of the water pump body, which brings convenience to the firefighters, and correspondingly improves the work efficiency and reduces the probability of water pump damage. Figure 3 , 4Among them, buzzer B is a small active continuous sound buzzer alarm finished product of model FM-12V; power supply mechanism W is an AC 220V to DC 12V power supply module; the resistance values ​​of resistors R1 and R2 are 1K and 10K respectively; transistor Q1 is a 9013 type NPN transistor; the relay J1 model is DC12V; transistors Q2 and Q3 are 9012 type PNP transistors; wireless transmitting module A2 and wireless receiving circuit module A3 are wireless transmitting and receiving module components of model WD1000 (the wireless transmitting and receiving distance is 1000 meters, which is consistent with the function and principle of the wireless remote control receiving component for vehicles); the self-priming water pump body M has a power of 4KW (with a fully sealed waterproof function); the three-terminal voltage detector W1 model is AN051A; the battery G1 is a lithium battery of model 12V / 2Ah.

[0022] It should be understood that although the present specification is described according to the implementation mode, the implementation mode does not only include an independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fire emergency mobile water supply and drainage device, comprising a self-priming water pump body, a handcart, a positioning seat, and a rotating wheel mechanism, characterized in that: The invention also comprises a water level detection circuit, a signal output circuit and a receiving circuit; a limit plate is installed on the rear side end of the handcart, a wire tube is installed at the lower end of the limit plate, a wire rod is installed at the upper end of the positioning seat, and the upper end of the wire rod and the lower end of the wire tube are connected by threads; a plurality of internal thread fixing grooves are respectively distributed on the outer sides of the wheels at both side ends of the handcart, and there are multiple sets of the same rotating wheel mechanism, each set of the rotating wheel mechanism comprises a fixed tube and a ladder wheel, the inner side of the fixed tube has an external thread, an axle rod is installed at the outer end of the fixed tube, and the ladder wheel is rotatably installed at the outer end of the axle rod; the inner sides of the fixed tubes of the multiple sets of rotating wheel mechanisms and the multiple fixing grooves of the wheels are respectively installed together by threads; the self-priming water pump body is installed on the limit plate; the water level detection circuit is equipped with at least two metal sheets, and the two metal sheets are insulated and installed at the outer end of the water inlet pipe of the self-priming water pump body; the water level detection circuit and the signal output circuit are installed in the component box; the signal output of the water level detection circuit is electrically connected to the signal input end of the signal output circuit.

2. The fire emergency mobile water supply and drainage device according to claim 1, characterized in that: A locking nut is installed between the inner side of the fixing pipe and the fixing groove.

3. The fire emergency mobile water supply and drainage device according to claim 1, characterized in that: The water inlet pipe of the self-priming water pump body is located at the lower end of the limit plate, and when the lower end of the positioning seat contacts the ground, the height of the lower end of the water inlet pipe is higher than the height of the lower end of the positioning seat.

4. The fire emergency mobile water supply and drainage device according to claim 1, characterized in that: The water level detection circuit includes an electrically connected three-terminal voltage detector, a transistor, and a resistor, which are also connected to two metal sheets. The power input terminal of the three-terminal voltage detector is connected to the collector of the first transistor, the base of the first transistor is connected to the collector of the second transistor, the base of the second transistor is connected to one end of the resistor, the other end of the resistor is connected to one end of one of the metal sheets, the other end of the other metal sheet is connected to the emitter of the first transistor, and the emitter of the second transistor is connected to the negative power input terminal of the three-terminal voltage detector.

5. The fire emergency mobile water supply and drainage device according to claim 1, characterized in that: The signal output circuit includes an electrically connected resistor and transistor, a relay and a wireless transmitting circuit module, the transistor emitter is connected to the relay control power input terminal, the transistor collector is connected to the relay positive power input terminal, the relay negative power input terminal is connected to the negative power input terminal of the wireless transmitting circuit module, the top of the relay normally open is connected to the positive power input terminal of the wireless transmitting circuit module, the two contacts under one of the wireless signal transmitting buttons of the wireless transmitting circuit module are connected together, and one end of the resistor is connected to the transistor base.

6. The fire emergency mobile water supply and drainage device according to claim 1, characterized in that: The receiving circuit includes an electrically connected battery, a wireless receiving circuit module and a buzzer, the two poles of the battery are connected to the power input ends of the wireless receiving circuit module, and the power output end of the wireless transmitting circuit module is connected to the power input ends of the buzzer respectively.

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