KR101318409B1 - Simple fire truck to move easily - Google Patents

Abstract

The present invention relates to a simple fire truck that is easy to move, and more particularly, it is difficult to enter a vehicle by a transfer wheel driven by a motor separately from a pump driven by an engine, and is easy to move to a narrow fire occurrence point. A groove is formed between the chamber formed in the pump and the suction part to reduce the pressure transmitted to the sealing means to prevent breakage of the sealing means, and during initial operation, lubrication and cooling by the lubricating water suction means installed in the pump suction part. Through this function, it is possible to improve the durability of the volumetric pump.

Description

Simple fire truck to move easily}

The present invention relates to a simple fire truck that is easy to move, and more particularly, it is difficult to enter a vehicle by a transfer wheel driven by a motor separately from a pump driven by an engine, and is easy to move to a narrow fire occurrence point. A groove is formed between the chamber formed in the pump and the suction part to reduce the pressure transmitted to the sealing means to prevent breakage of the sealing means, and during initial operation, lubrication and cooling by the lubricating water suction means installed in the pump suction part. The present invention relates to a simple fire truck that can be easily moved to improve the durability of a volumetric pump.

In general, when a fire occurs, rapid response and initial evolution can greatly reduce the damage. This is especially true where fires, such as mountains or yards, cause massive damage. In the case of such mountain or yard, it is not easily equipped with firefighting facilities, so the early evolution is not easy. Even if the fire is detected early, the early evolution fails due to the lack of equipment and lack of equipment.

Especially in the case of forest fires in the dryer, the fire extinguishing system is being operated due to the mobilization of manpower for fire prevention and extinguishing. It is in use, and only a spray type manual fire extinguisher is used for the rear light cleanup.

Likewise, in the case of fires occurring in yards, narrow alleys, and traditional markets without water, the most important thing is that early fire extinguishing or fire trucks cannot be entered, so there are many difficulties in initial extinguishing.

In addition, there is a problem that a vehicle and a pump equipped with a separate water tank are required because it is not possible to directly connect to an outdoor fire hydrant and an OC valve such as a park and supply water to grass and trees. In view of such a conventional problem, the present applicant has been registered with a small multi-purpose watering sprinkler of Patent Registration No. 1015060, and the Patent Registration No. 1015060 has a pressure rise between the chamber and the suction part, so that the sealing means is broken and time elapses. There is a problem that the flow rate fluctuations cause the efficiency and safety accident of the pump, the cavitation phenomenon occurs according to the flow resistance, the durability of the valve and the auxiliary device is reduced and the life of the pump is shortened.

The present invention has been made to solve the above-described problems, the purpose of which is difficult to enter the vehicle by the transfer wheel driven by using a motor separately from the pump driven by a separate engine and easy to move to a narrow fire occurrence point. And, by forming a groove between the chamber formed in the pump and the suction portion to reduce the pressure transmitted to the sealing means to prevent breakage of the sealing means, the lubrication action by the lubricating water suction means installed in the pump suction portion during the initial operation The present invention provides an easy-to-move simple fire truck capable of improving the durability of a volumetric pump through overcooling.

The purpose of the present invention is a simple fire truck that is difficult to enter the vehicle by a transfer wheel driven by a motor separate from the pump driven by the engine and easy to move to a narrow fire occurrence point, the pressure of the pump A decompression groove formed between the chamber where the sealing means is installed and the suction port to reduce the pressure of the chamber; Lubricant supply means for supplying the lubricating water by the vacuum pressure generated during the initial operation of the pump to the inlet of the chamber to improve the durability through the lubricating action and the cooling action; Achieved by an easy-to-move fire fighting pump, characterized in that the first protrusion is formed on the side end of the rotor installed inside the chamber, and the rotor means is formed on the periphery of the shaft hole through which the rotating shaft passes. do.

The lubricating water supply means is a lubricating water tank is installed so as to be located above the housing; A nozzle unit installed at the bottom of the lubrication tank to freely drop the lubricating water by gravity; A supply valve mounted to an upper portion of the housing to supply or block lubricant water to the inlet; And it is achieved by an easy-to-move fire fighting pump comprising a strainer installed between the lubrication tank and the nozzle.

The present invention is difficult to enter the vehicle by the transfer wheel driven by a motor separately from the pump driven by a separate engine, easy to move to a narrow fire occurrence point, between the chamber and the suction unit formed inside the pump By forming a groove in the pressure reducing pressure transmitted to the sealing means to prevent damage to the sealing means, and during the initial operation to improve the durability of the volume pump through the lubrication action and cooling action by the lubrication water suction means installed in the pump suction section It is effective to make it.

1 is a perspective view showing the overall appearance of a simple fire truck easy to move the inventors.
Figure 2 is a perspective view showing a structure for reducing the pressure inside the chamber which is the technical gist of the present invention.
3 is an enlarged view of part A in Fig. 2
Figure 4 is a graph showing a comparison between the pressure received by the sealing means installed in the conventional rotary displacement pump and the rotary displacement pump formed groove.
5 is a cross-sectional view for explaining the installation structure of the lubricant supply means according to the present invention.
Figure 6 is a perspective view showing the structure of the rotor according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the overall appearance of the present inventors easy to move a simple fire truck according to the present invention is a pump that is connected to the engine 100 is provided with a fuel tank integrally and generates power to operate the pump ( The plate member 300 having the upper portion 200 installed thereon is provided with brake means 700 for controlling the rotation of the transfer wheel 500 which is driven by receiving power from the motor 400 which is operated by receiving the power of the battery. The frame member 600 is provided with a handle for steering the transfer wheel 500.

It is formed between the chamber 200-1 and the suction port 200-1a in which the sealing means 200-5 receiving the pressure of the pump 200 is installed so as to reduce the pressure in the chamber 200-1. Decompression groove (200-6) is formed, the lubricating water by the vacuum pressure generated during the initial operation of the pump 200 in the suction port (200-1a) of the chamber (200-1) as shown in Figure 4 Lubricant supply means 230 is installed to improve the durability by supplying the lubrication action and cooling action.

Meanwhile, in the structure of the rotor 220 installed inside the chamber 200-1, the first protrusion 220-1 is formed at the side end portion, and the second protrusion 220-2 is formed at the periphery of the shaft hole through which the rotating shaft passes. It is a formed structure.

The lubricating water supply means 230 is installed in the lower portion of the lubricating water tank 230-1 and the lubricating water tank 230-1 installed to be positioned above the chamber 200-1, and freely dropping the lubricating water by gravity. A nozzle unit 230-2 for making it; A supply valve 230-3 mounted on an upper portion of the chamber 200-1 to supply or block the lubricating water to the inlet 200-1a; And a strainer 230-4 installed between the lubricating water tank 230-1 and the nozzle unit 230-2.

The lubricating water tank 230-1 is a storage container for storing a predetermined lubricating water, and stores at least the amount of lubricating water required to initially start the pump. In addition, since the amount of lubrication water is changed at the time of initial startup, the lubrication tank 230-1 is used by mounting a different size according to its capacity.

The nozzle unit 230-2 is mounted at the bottom of the lubricant tank 230-1 so that the lubricant is discharged to the outside of the lubricant tank 230-1 by gravity and the vacuum pressure in the suction port 200-1a. Like the lubrication tank 230-1, the nozzle unit 230-2 also uses a different discharge amount according to the capacity because the amount of lubrication water is different depending on the capacity of the pump. Reference numeral 900 is a flexible hose.

Referring to the operation and effect of the present invention made of a structure as described above when using a ignition point and the pump according to the occurrence of the fire to move to the point to spray / supply water plate member formed integrally with the frame member 600 The motor 400 installed in the 300 is operated to rotate the transfer wheel 500 connected to the motor 400 and the movement direction using the handle and the brake means 700 which steer the direction of the transfer wheel 500. Drive to move the whole.

The engine 200 and the pump 200 are operated when the pump 200 moves to a ignition point and a point to supply water according to the occurrence of a fire and the movement of the simple fire truck 1 of the present invention is completed. To the flexible hose tube 900 in the water spraying direction and the supply direction to start spraying / supplying water.

In this case, when the fluid is sucked through the suction port 200-1a by the rotation of the rotor 220, the fluid introduced into the chamber 200-1 is compressed by the rotation of the rotor 220. At the moment, it explodes and transfers the fluid at high pressure through the discharge port.

At this time, the high-pressure fluid generated in the discharge portion is generated in the chamber 200-1 by the change in the volume of the chamber 200-1 generated by the rotation of the rotor 220, and the generated high-pressure fluid Vacuum pressure is formed below the wear plate 200-4.

As the rotating shaft of the rotor 220 rotates at a high speed when the fluid is discharged as described above, lubricating oil may leak, but this is prevented by the sealing means 200-5.

Looking at the action of the sealing means 200-5, the high pressure generated by the rotation of the rotor 220 is leaked between the wear plate 200-4 and the rotating shaft to press the sealing means (200-5) and wear the metal material The plate 200-4 is not deformed, but the sealing means 200-5, which is a rubber material, is compressively deformed.

Removal of the seal in the chamber during compression deformation of the sealing means (200-5) is prevented by the wear plate (200-4).

At this time, since the high pressure transmitted to the sealing means 200-5 is discharged toward the suction port 200-1a as shown in FIG. 4, the chamber 200-1 is provided with the sealing means 200-5. The pressure escapes momentarily.

In the conventional rotary displacement pump in which the pressure reducing groove 200-6 is not formed between the chamber 200-1 and the suction port 200-1a, the sealing means 200-5 is shown in FIG. 4. When the pressure of the installed portion was measured, the pressure was formed at about 2.0 ± 0.2 MPa, but it was found that the pressure was formed at 1.2 ± 0.12 MPa in the case of the pump according to the present invention. Therefore, in consideration of the safety factor, it is possible to use a sealing means (200-5) that can be used up to 1.5MPa, that is a low-cost sealing means.

Meanwhile, as shown in FIG. 5, in the rotor 220 for transferring fluid by the engagement of the rotating rotor 220, the side of the rotor 220 of the chamber 200-1 is fixed to the rotating rotor. Only the first protrusion 220-1 is formed for the airtight between the wear plates, and the first protrusion 220-1 is formed at the edge of the rotor having a high circumferential speed, so that the wear plate and the first protrusion are rotated by the rotor for a long time. As the first protrusion 220-1 wears due to the friction between the 220-1, the sealing force (confidence) is reduced to form a high pressure with the shaft sealing member so that airtightness cannot be maintained for a long time.

In addition, the first protrusion 220-1 rotates by inserting foreign matter between the first protrusion 220-1 and the wear plate by foreign matter inevitably introduced from the suction side of the pump 200. 1) and the second plate 220-2 in the circumferential direction to form the second protrusion 220-2 in the circumferential direction in addition to the first protrusion 220-1, thereby damaging the wear plate. Even if 220-1) wears out and a short circuit occurs due to a foreign matter, the second protrusion 220-2 serves as a sealing member to maintain an excellent airtight force.

The first protrusion 220-1 is directly exposed to the foreign matter introduced into the pump 200 as the rotor 220 rotates, and the first protrusion 220-1 rotates between the first protrusion 220-1 and the wear plate. 220-1) or wear and short of the wear plate, but the first projection (220-1) is maintained at the outermost (edge) in the circumferential direction of the circumferential speed is faster than the second projection (220-2) Although the wear is relatively fast, the second protrusion 220-2 is closer to the center of rotation than the first protrusion 220-1 so that the circumferential speed is relatively slow (1/2 to 1/3 of the first protrusion). The speed is delayed and serves as a long term sealing member.

Since the foreign matter introduced into the second protrusion 220-2 is not easily drawn in, the short circuit of the second protrusion 220-2 is reduced to improve the sealing force.

Meanwhile, the operation of the lubricating water supply unit 230 as shown in FIG. 5 is operated before the initial start of the pump 200. At this time, the lubricating water tank 230-1 is filled with lubricating water before the volume pump is driven.

Next, the supply valve 230-3 is opened to operate the volume pump. Accordingly, the vacuum pressure is formed inside the volumetric pump, that is, the space part, by the rotation of the rotary rotor 220. This vacuum pressure sucks the lubricating water into the suction port 200-1a through the nozzle portion 230-2. And, the lubricant is continuously supplied to the rotary rotor 220 from the suction port (200-1a) side, as indicated by the hidden line in the figure. At this time, the lubricating water is sucked from the lubricating water tank 230-1 to the suction port 200-1a by the vacuum pressure and gravity.

On the other hand, the lubricating water is supplied to the space along the bottom of the suction port (200-1a) is sucked between the rotary rotor 220 and acts as a pick-up. The lubricating water not only prevents the pressure in the volume pump from escaping to the outside, but also cools the frictional heat between the rotary rotor 220 and the space part.

The lubricating water supply means 230 is configured by the lubricating water supply means so that a small amount of lubricating water can be supplied to the housing by the vacuum pressure of the inlet portion, so that the cooling and lubricating action between the housing and the rotary rotor is made, the durability of the volumetric pump Will be able to improve.

100: engine 200: pump
200-1: chamber 200-1a: suction port
200-4: wear plate 200-5: sealing means
200-6: decompression groove 220: rotor
220-1: first projection 220-2: second projection
230: lubricating water supply means 230-1: lubricating water tank
230-2: nozzle portion 230-3: supply valve
230-4: strainer 400: motor
600: frame member 700: brake means

Claims (2)

In a simple fire truck, which is difficult to enter a vehicle by a transfer wheel driven by a motor separately from a pump driven by an engine and easily moves to a narrow fire occurrence point,
A decompression groove formed between the suction port and the chamber in which the sealing means receiving the pressure of the pump is installed to reduce the pressure of the chamber;
Lubricant supply means for supplying the lubricating water by the vacuum pressure generated during the initial operation of the pump to the inlet of the chamber to improve the durability through the lubricating action and the cooling action;
And a first protrusion formed at a side end portion of the rotor provided inside the chamber, and a rotor means formed at a periphery of the shaft hole through which the rotating shaft penetrates, the second protrusion being formed. The method of claim 1,
The lubricating water supply means includes a lubricating water tank installed to be located above the housing; A nozzle unit installed at the bottom of the lubrication tank to freely drop the lubricating water by gravity; A supply valve mounted to an upper portion of the housing to supply or block the lubricating water to the inlet; And a sieve net installed between the lubricating water tank and the nozzle unit.

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