CN205859167U - Intrinsic safety type high pressure fire fighting bolt - Google Patents

Abstract

The open a kind of intrinsic safety type high pressure fire fighting bolt of this utility model, including valve body, valve rod and the valve base being arranged on body base, water inlet is offered in the bottom of valve body, body wall is provided with outlet, water inlet communicates through valve base with valve inner, and valve rod and water inlet direction, edge are just moved back and forth by water inlet；Valve interior wall is provided with " recessed " shape stopper slot, and valve rod outer wall is provided with helicla flute, is provided with stopping means between valve body, valve rod, and one end of stopping means abuts with stopper slot, and the other end of stopping means slides and is fixed in helicla flute.Beneficial effect: simple in construction, convenient for installation and maintenance, high pressure resistant, can in real time the hydraulic pressure in fire hydrant be monitored by hydraulic pressure sensor, service life is long, and equipment cost is low.

Description

Intrinsically safe high pressure fire hydrant

technical field

The utility model relates to fire-fighting equipment, in particular to an intrinsically safe high-pressure fire hydrant.

Background technique

Fire hydrants are mainly used to provide water sources for fire fighting. For large places such as high-rise buildings and garages, the fire safety requirements are strict, and the fire water pressure is particularly high.

The existing fire hydrant structure is usually prone to pop-up or breakage of the valve stem under high water pressure, resulting in a large amount of water loss from the fire hydrant, wasting water. In order to prevent the fire water from dispersing, people often turn off the fire water source. If it is not repaired in time, there will be great safety hazards in the fire protection system, and it is difficult to maintain the fire hydrant. Maintenance personnel usually replace the entire fire hydrant, which is expensive for equipment and investment. Big.

Contents of the invention

In order to solve the above technical problems, the present invention provides a safe, reliable and high pressure resistant intrinsically safe high pressure fire hydrant.

For realizing above-mentioned object, the technical scheme that the utility model adopts is:

An intrinsically safe high-pressure fire hydrant includes a valve body, a valve stem and a valve body base arranged at the bottom of the valve body. A water outlet is provided on the wall, the water inlet communicates with the inside of the valve body through the valve body base, the water inlet is facing the valve stem and can move back and forth along the water inlet direction;

The inner wall of the valve is provided with a "concave" shape limiting groove, the outer wall of the valve stem is provided with a spiral groove, and a limiting device is arranged between the valve body and the valve stem, and one end of the limiting device is connected to the The other end of the limiting device is slidably fixed in the spiral groove.

Through the above design, the limiting device can only move back and forth in the limiting groove, and the other end of the limiting device is slid and fixed in the spiral groove, so the range of movement of the valve stem is limited, even when the water pressure is high, it will not The situation that the valve stem is ejected occurs, the reliability is good, and the compressive strength is high.

Further, the valve stem is a hollow valve stem, a valve cover is arranged on the top of the valve stem, the hollow chamber of the valve stem faces the water inlet, and a pressure sensor is arranged in the hollow chamber of the valve stem.

With the above scheme, the pressure sensor installed in the hollow chamber of the valve stem can monitor the water pressure of the fire hydrant in real time, so as to ensure the water supply demand of the fire hydrant and improve the reliability of the fire protection system.

Still further, the pressure sensor is connected to the fire hydrant communication module via the pressure control circuit and the communication interface circuit, the fire hydrant communication module is connected to the monitoring communication module, and the monitoring communication module is connected to the monitoring terminal.

Using the above scheme, water pressure data can be transmitted remotely, and the monitoring terminal can monitor multiple fire hydrants in the fire protection system in real time, and check the water pressure information of each fire hydrant in real time. Once an accident occurs, it can be remedied in time, effectively ensuring people's lives and property Safety.

Still further, a pressure sensor limit step is provided on the inner wall of the hollow chamber of the valve stem.

By adopting the above scheme, the pressure sensor can be limited in the middle of the hollow chamber of the valve stem, and will not contact the top of the hollow chamber of the valve stem due to the effect of water buoyancy and water pressure, which will affect the water pressure detection, and avoid water impact, The pressure sensor collides with the top of the hollow chamber of the valve stem, causing damage to the pressure sensor, prolonging the service life of the pressure sensor and saving costs.

Still further, a metal isolation net is provided at the mouth of the hollow chamber of the valve stem.

By adopting the above scheme, impurities in the fire hydrant can be prevented from affecting the detection accuracy of the pressure sensor; when the water outlet is opened, the water pressure is too high, and the sensor can be protected from the impact of the water pressure.

Still further, the limiting device includes a first slider and a second slider, a spring is connected between the first slider and the second slider, and the first slider abuts against the limiting In the bit groove, the first sliding block is slidably fixed in the spiral groove.

With the above solution, when the valve stem moves upward, the second slider moves in reverse along the spiral groove, and when it reaches the bottom end of the spiral groove, the first slider starts to move upward along with the valve stem, and when it moves to the limit At the top of the position groove, due to the function of the limit device, the valve stem can no longer move upwards, which reduces the damage to the fire hydrant caused by excessive water pressure and improves the reliability of the fire hydrant; at the same time, the valve stem is easy to install and replace. When the valve body and The valve stem is set separately, and when the valve stem breaks down, the valve stem can be replaced separately, and the replacement is convenient.

Still further, a protective cover is connected to the water outlet, and threads are provided on the water outlet, and the protective cover is threadedly connected to the water outlet, thereby further preventing water leakage in the fire hydrant.

Still further, a valve stem base is provided at the bottom of the valve stem for abutting against the valve body base, and a sealing gasket is provided on the abutting surface of the valve body base and the valve body base of the valve stem base , to avoid water leakage and ensure the sealing effect of the fire hydrant.

The beneficial effects of the utility model are: by setting the limit device, the pressure resistance of the fire hydrant is improved, the safety is high, and the reliability is good; the water pressure of the fire hydrant is monitored in real time, the water supply demand of the fire hydrant is ensured, and the reliability of the fire protection system is improved. The water pressure data can be transmitted remotely, and the monitoring terminal can monitor multiple fire hydrants in the fire protection system in real time, and check the water pressure information of each fire hydrant in real time. Once an accident occurs, it can be remedied in time to effectively ensure the safety of people's lives and property; The fire hydrant has long service life, convenient installation and maintenance, low equipment cost, high pressure detection accuracy and good sealing effect.

Description of drawings

Below in conjunction with accompanying drawing, further elaborate the present invention.

Fig. 1 is the overall schematic diagram of the invention

Figure 2 is a block diagram of the circuit connection of the water pressure sensor.

Fig. 3 is a diagram of the valve opening state of Fig. 1 .

detailed description

Below in conjunction with embodiment and accompanying drawing, the utility model will be further described:

As shown in Figure 1, an intrinsically safe high-pressure fire hydrant includes a valve body 1, a valve stem 2, and a valve body base 3 arranged at the bottom of the valve body 1. A water inlet is provided at the bottom of the valve body 1. 1. There is a water outlet on the side wall. The water inlet passes through the valve body base 3 and communicates with the inside of the valve body 1. The water inlet faces the valve stem 2 and moves back and forth along the water inlet direction;

It can also be seen from Figures 1 and 3 that the inner wall of the valve body 1 is provided with a "concave" shape limiting groove 4, the outer wall of the valve stem 2 is provided with a spiral groove 5, and a limiting groove is provided between the valve body 1 and the valve stem 2. Device 6 , one end of the limiting device 6 abuts against the limiting groove 4 , and the other end of the limiting device 6 is slidably fixed in the spiral groove 5 .

It can also be seen from Fig. 1 that the valve stem 2 is a hollow valve stem, the top of the valve stem 2 is provided with a valve cover 9, the hollow chamber of the valve stem 2 faces the water inlet, and a pressure sensor is arranged in the hollow chamber of the valve stem 2.

It can also be seen from Figure 2 that the pressure sensor is connected to the fire hydrant communication module through the pressure control circuit and the communication interface circuit, the fire hydrant communication module is connected to the monitoring communication module, and the monitoring communication module is connected to the monitoring terminal.

It can also be seen from FIG. 1 that a pressure sensor limit step is provided on the inner wall of the hollow chamber of the valve stem 2 .

It can also be seen from FIG. 1 and FIG. 3 that a metal isolation net 8 is provided at the mouth of the hollow chamber of the valve stem 2 .

It can also be seen from Fig. 1 and Fig. 3 that the limit device 6 includes a first slide block and a second slide block, a spring is connected between the first slide block and the second slide block, and the first slide block abuts against the limit In the bit groove 4, the first slider slides and is fixed in the spiral groove 5.

It can also be seen from Fig. 1 and Fig. 3 that a protective cover 9 is connected to the water outlet.

It can also be seen from Figures 1 and 3 that a valve stem base 10 is provided at the bottom of the valve stem 2 for abutting against the valve body base 3, and the valve body base abutting surface of the valve body base 3 and the valve stem base 10 A sealing gasket 11 is provided.

The working principle of the utility model is:

Valve stem 2 installation or replacement process:

Connect the limit device 6 to the valve stem 2, squeeze the spring of the limit device 6, make the first slider of the limit device 6 as close as possible to the outer wall of the valve stem 2, and then install the valve stem 2 and the limit device 6 from the valve body 1 The bottom is put in until the first slider of the limiting device 6 abuts against the limiting slot 4 .

When the fire hydrant is not working, the valve stem 2 is at the bottom and the stem base is in contact with the valve body base, and the seal is realized by the sealing gasket 11 to ensure that the fire hydrant does not leak.

When fire-fighting water is needed, rotate the valve stem 2 to make it slowly move upwards, and the stop device 6 also moves upwards driven by the valve stem 2 until the first slider abuts against the top of the limit groove 4, at this time the valve stem The base is separated from the base of the valve body, and the fire-fighting water enters from the water inlet and is discharged from the water outlet.

During the whole process, the pressure sensor collects the fire water pressure in real time and transmits it to the monitoring terminal to view the water pressure information of the fire hydrant in real time. Once an accident occurs, it can be remedied in time to effectively ensure the safety of people's lives and property.

Claims (8)

1. An intrinsically safe high-pressure fire hydrant, comprising a valve body (1), a valve stem (2) and a valve body base (3) arranged at the bottom of the valve body (1), is characterized in that: A water inlet is provided at the bottom of the body (1), and a water outlet is provided on the side wall of the valve body (1), and the water inlet passes through the valve body base (3) and the inside of the valve body (1) In communication, the water inlet is facing the valve stem (2) and can move back and forth along the water inlet direction; The inner wall of the valve body (1) is provided with a "concave" shape limit groove (4), and the outer wall of the valve stem (2) is provided with a spiral groove (5). 2) A limiting device (6) is arranged between them, one end of the limiting device (6) abuts against the limiting groove (4), and the other end of the limiting device (6) is slidably fixed on the Inside the spiral groove (5). 2. The intrinsically safe high-pressure fire hydrant according to claim 1, characterized in that: the valve stem (2) is a hollow valve stem, the top of the valve stem (2) is provided with a valve cover (7), and the The hollow chamber of the valve stem (2) faces the water inlet, and a pressure sensor is arranged in the hollow chamber of the valve stem (2). 3. The intrinsically safe high-pressure fire hydrant according to claim 2, wherein the pressure sensor is connected to the fire hydrant communication module through the pressure control circuit and the communication interface circuit, and the fire hydrant communication module communicates with the monitoring communication module , the monitoring communication module is connected to the monitoring terminal. 4. The intrinsically safe high-pressure fire hydrant according to claim 3, characterized in that: a pressure sensor limit step is provided on the inner wall of the hollow chamber of the valve stem (2). 5. The intrinsically safe high-pressure fire hydrant according to claim 2, characterized in that: a metal isolation net (8) is arranged at the mouth of the hollow chamber of the valve stem (2). 6. The intrinsically safe high-pressure fire hydrant according to claim 1, characterized in that: the limit device (6) includes a first slider and a second slider, and the first slider and the second slider A spring is connected between the blocks, the first sliding block abuts against the limiting groove (4), and the first sliding block is slidably fixed in the spiral groove (5). 7. The intrinsically safe high-pressure fire hydrant according to claim 1, characterized in that a protective cover (9) is connected to the water outlet. 8. The intrinsically safe high-pressure fire hydrant according to claim 1, characterized in that: a valve stem base (10) is provided at the bottom of the valve stem (2) for offsetting against the valve body base (3) Next, a sealing gasket (11) is provided on the abutment surface of the valve body base (3) and the valve stem base (10).