CN207567858U - A kind of outdoor anti-freezing fire hydrant - Google Patents

Abstract

The utility model relates to an outdoor anti-freezing fire hydrant, which can effectively solve the problem of freezing and blocking the stagnant water of the outdoor fire hydrant. The technical scheme is that a water inlet cavity is arranged at the lower end of the underground part of the hydrant, and the water inlet pipeline extends into the water inlet cavity. There is a drain opening through the inside and outside. The inlet end of the drain port is provided with a drain port seal ring flush with the bottom surface of the water inlet chamber. A steel pipe bracket is arranged above the drain port seal ring. The guide rod in the water inlet chamber is fitted with an upper bearing. There is a guide plate that moves up and down with it, and the lower end of the guide plate is connected with a steel wire rope. One end of the steel wire rope is fixedly connected with the guide plate, and the other end goes around the fixed pulley and then extends into the steel pipe support and is fixedly connected with the drain outlet pressure plate set in the steel pipe support. Together, the utility model realizes the linkage between the opening and closing of the fire hydrant valve and the opening and closing of the drain port, so that the water in the fire hydrant cavity above the permafrost layer is automatically discharged, thereby preventing the use of the outdoor fire hydrant from freezing in the cold winter in the north, and realizing the automatic linkage. drain.

Description

An outdoor antifreeze fire hydrant

technical field

The utility model relates to a fire hydrant, in particular to an outdoor antifreeze fire hydrant.

Background technique

Outdoor fire hydrants are an important part of ensuring fire safety in cities in my country. They can quickly provide water sources for fire trucks, and when the fire is within the protection radius of the fire hydrant, it can be used to extinguish the fire. However, in most parts of northern my country, the winter temperature is low, and the accumulated water in the cavity of the outdoor fire hydrant will freeze and block after use or testing, making it impossible to continue to use it. When a fire occurs, it will damage people's lives and property Therefore, it is particularly important to do a good job in antifreezing of outdoor fire hydrants.

In order to do a good job in the antifreeze work of outdoor fire hydrants, the existing achievements have been designed and applied mainly from the following aspects: ① Increase the heat preservation cover. In a certain area in northern my country, this method can prevent outdoor fire hydrants from freezing and blocking, but when the permafrost layer is thick, the effect is poor, and in order to get water quickly, the insulation cover cannot be fixed with screws, and it should be placed in places with few people. At the same time, it is easy to be damaged, and at the same time, the heat preservation cover makes the appearance of the fire hydrant larger and unsightly. ② Underground fire well. After the fire well is built underground, the outdoor fire hydrant can be completely installed underground, or it can leak out of the ground. When the fire hydrant is set on the ground, after taking the water, it is necessary to use the drain in the underground fire well to empty the accumulated water in the fire hydrant cavity. This method can be applied in different areas according to the depth of the underground fire well, but this design requires personnel to work in the narrow underground fire well, which reduces the speed of water intake, and is unsafe, and the application cost is high. ③ Increase the insulation layer. In order to prevent outdoor fire hydrants from freezing and blocking, thermal insulation materials can be embedded in the fire hydrant pipe wall or wrapped with thermal insulation materials outside the fire hydrant. This design can be applied in areas where the temperature is not too low in winter, but in areas with low winter temperatures, Due to the poor insulation effect, ice will still form in the fire hydrant cavity, and the insulation material wrapped outside the fire hydrant is unsightly. ④ Empty the accumulated water inside the fire hydrant cavity. In the past, most of the accumulated water in the cavity of the fire hydrant was emptied by installing a drainage device inside the fire hydrant. However, due to its structural problems, the design cannot realize linkage. At the same time, the drainage is often not clean, and the engineering practice effect is not satisfactory. It is imperative to improve and innovate outdoor antifreeze fire hydrants.

Utility model content

In view of the above situation, in order to overcome the defects of the prior art, the purpose of this utility model is to provide an outdoor anti-freeze fire hydrant, which can effectively solve the problem of freezing and blocking the stagnant water of the outdoor fire hydrant.

The technical scheme that the utility model solves is:

An outdoor antifreeze fire hydrant, comprising a fire hydrant body, the fire hydrant body includes an above-ground part of the cock body and an underground part of the cock body below the ground, the side wall of the above-ground part of the cock body is provided with a first outlet connected to its inner cavity The water outlet and the second water outlet, the lower end of the underground part of the plug body is provided with a water inlet pipeline connected to the inner cavity, and the fire hydrant body is provided with a vertical guide rod, and the upper part of the guide rod is set through the fixing groove at the upper end of the ground part of the plug body. Protrude from the upper end of the fire hydrant body, the extension part is provided with a rotary handle, the lower end of the guide rod is provided with a pressure plate, and the upper surface of the water inlet pipe is provided with a sealing ring corresponding to the pressure plate, turn the rotary handle, control the guide rod to slide up and down along the fixed groove, and drive The pressure plate and the sealing ring are attached or separated to form the water inlet control structure of the fire hydrant body. The lower end of the underground part of the hydrant body is provided with a water inlet chamber, and the water inlet pipeline extends into the water inlet chamber. The bottom of the water inlet chamber is provided with an internal and external through hole The drain port, the inlet end of the drain port is provided with a drain port sealing ring which is flush with the bottom surface of the water inlet chamber, a steel pipe bracket is arranged above the drain port sealing ring, and the guide rod in the water inlet chamber is equipped with an upper bearing set along with its The guide plate moves up and down, the lower end of the guide plate is connected with a steel wire rope, one end of the steel wire rope is fixedly connected with the guide plate, and the other end goes around the fixed pulley and then extends into the steel pipe support and is fixedly connected with the drain outlet pressure plate set in the steel pipe support. Move the guide plate downwards to drive the drain port pressure plate to move upwards to form a separation control structure between the drain port pressure plate and the drain port sealing ring. A compression spring is arranged between the drain port pressure plate and the top plate of the steel pipe bracket to form a seal between the drain port pressure plate and the drain port. The joint reset structure of the ring, the lower end of the steel pipe support is provided with a permeable hole through the inside and outside, when the pressure plate and the sealing ring are attached, the pressure plate of the water outlet is separated from the sealing ring of the water outlet.

The beneficial technical effect of the utility model is:

1. By setting a bearing between the guide rod and the guide plate, the rotation of the guide rod will not drive the guide plate to rotate but will drive it to slide up and down. When it is in the normal state, the drain port is connected, and when the fire hydrant is connected to the water, the drain port is closed, realizing the linkage drainage;

2. The water outlet is a vertical hole and is located at the bottom of the water inlet chamber. At the same time, the sealing ring of the water outlet is flush with the bottom plate of the water inlet chamber. The upper edge is higher than the upper surface of the pressure plate of the drain outlet, thus ensuring that the water in the fire hydrant body can be discharged cleanly, effectively preventing the outdoor fire hydrant from freezing and blocking in winter;

3. All the water in the fire hydrant body can be discharged in a linked manner. The length of the underground part of the hydrant body can be modified according to the depth of the local permafrost layer. The antifreeze effect is good and it is easy to use.

It can be seen that the structure of the utility model is novel and unique, simple and reasonable, and realizes the linkage between the opening and closing of the fire hydrant valve and the opening and closing of the drain port, so that the water in the fire hydrant cavity above the permafrost layer is automatically discharged, thereby preventing the outdoor fire hydrant from being damaged in the cold winter in the north. Icing affects the use, and it realizes linkage and automatic water discharge, which is convenient to use and has good effect. It is an innovation in fire hydrants.

Description of drawings

Figure 1 is a cross-sectional view of the sealed state of the fire hydrant body of the present invention.

Fig. 2 is a cross-sectional view of the water outlet state of the fire hydrant body of the present invention.

Fig. 3 is a partially enlarged view of the lower part of Fig. 1 of the present utility model.

Detailed ways

The specific embodiments of the present utility model will be described in further detail below in conjunction with the accompanying drawings.

Provided by Fig. 1 to Fig. 3: the utility model comprises fire hydrant body, and fire hydrant body comprises aboveground part cock body 1 and is positioned at ground part cock body 2 below ground 33, on the sidewall of ground part cock body 1 There is a first water outlet 8 and a second water outlet 9 communicating with its inner cavity, and the lower end of the underground part plug body 2 is provided with a water inlet pipeline 32 communicating with its inner cavity, and a vertical guide rod is arranged in the fire hydrant body 4. The upper part of the guide rod 4 protrudes from the upper end of the fire hydrant body through the fixed groove set on the upper end of the bolt body on the ground. The sealing ring 19 corresponding to the pressure plate 18 rotates the rotary handle 3, and the control guide rod 4 slides up and down along the fixed groove, driving the pressure plate 18 to fit or separate from the sealing ring 19 to form the water inlet control structure of the fire hydrant body. The lower end of part of the plug body 2 is provided with a water inlet chamber 34, and the water inlet pipeline 32 extends into the water inlet chamber 34. The bottom of the water inlet chamber 34 is provided with a drain port 29 connecting inside and outside. The drain port seal ring 22 that is flush with the bottom surface of the drain port seal ring 22 is provided with a steel pipe support 20, and the guide rod 4 in the water inlet chamber 34 is equipped with a guide plate 16 that moves up and down along with the guide plate 16 through the upper bearing 10. The lower end of the steel rope 27 is connected with a steel rope 27, and one end of the steel rope 27 is fixedly connected with the guide plate 16, and the other end goes around the fixed pulley 24 and stretches into the steel pipe support 20 and is fixedly connected with the drain outlet pressure plate 28 arranged in the steel pipe support. Move the guide plate downwards to drive the water outlet pressure plate 28 to move upwards to form a separation control structure between the water outlet pressure plate and the water outlet sealing ring. A compression spring 26 is arranged between the water outlet pressure plate 28 and the top plate 23 of the steel pipe support to form the water outlet pressure plate With the joint reset structure of the sealing ring of the drain, the lower end of the steel pipe bracket is provided with a water-permeable hole 21 through which the inside and outside penetrate.

In order to ensure the use effect, the lower part of the water inlet pipeline 32 protrudes from the fire hydrant body, and the protruding end is provided with a flange 30 for connection, which can be connected to the water pipeline through the screw hole 31 on the flange.

The fixed grooves include an upper fixed groove 5 and a lower fixed groove 6 respectively arranged on the upper and lower parts of the top surface of the fire hydrant body. The upper fixed groove 5 and the lower fixed groove 6 center holes are provided with internal threads, and the guide rod is provided with a The external thread corresponding to the internal thread constitutes the rotating and sliding structure of the guide rod.

An anti-leakage sealing ring 7 is arranged between the guide rod and the fire hydrant body, and the anti-leakage sealing ring 7 is located between the upper fixing groove 5 and the lower fixing groove 6 .

A lower bearing 13 is arranged between the pressing plate 18 and the guide rod 4 .

The fixed pulley 24 is fixed on the pulley support plate 25 in the water inlet chamber 34, and the pulley support plate 25 is a group of parallel plates arranged in the width direction of the water inlet chamber.

The guide plate 16 is stuck between the pulley support plates in the width direction of the water inlet chamber. When the guide rod 4 rotates, the guide plate 16 does not rotate with the guide rod 4, and when the pressure plate 18 and the sealing ring 19 are in the maximum separation state, the guide plate The lower end of 16 is lower than the upper end of pulley support plate 25.

The lower edge of the water permeable hole 21 is flush with the bottom surface of the water inlet chamber 34. When the pressure plate 18 and the sealing ring 19 are in a bonded state, the upper edge of the water permeable hole 21 is higher than the upper end surface of the water outlet pressure plate 28 to ensure water inlet All water in the cavity can be drained.

The pressure plate 18 is filled with thermal insulation material 17 .

Both the first water outlet 8 and the second water outlet 9 are horizontally arranged on the side wall of the bolt body 1 on the ground, the axes of the first water outlet 8 and the second water outlet 9 are vertical, and the inner diameter of the first water outlet 8 is 65mm, and the inner diameter of the second water outlet 9 is 100mm.

The water inlet cavity 34 is a cuboid structure.

The lower bearing inner ring 14 of the lower bearing is fixedly connected with the guide rod 4, the lower bearing outer ring 15 is fixedly connected with the pressure plate 18, the upper bearing inner ring 11 of the upper bearing is fixedly connected with the guide rod 4, and the upper bearing outer ring 12 It is fixedly connected with the guide plate, and the compression spring 26 matches the strength of the steel wire rope 27. When the pressure plate 18 and the sealing ring 19 are closely attached, the pressure plate 28 of the drain port is required to be separated from the sealing ring 22 of the water discharge port. When the pressure plate 18 is separated from the sealing ring 19, the compression The spring 26 can make the water outlet pressure plate 28 fit closely with the water outlet sealing ring. The pulley 24 is supported by a pair of pulley support plates 25, and the width of the guide plate 16 is required to be equal to the distance between the pulley support plates. When the rotary handle rotates to the uppermost , the lower boundary of the guide plate 16 is lower than the boundary on the pulley support plate, and the water inlet chamber 34 can be set below the local permafrost layer, and there is no need to leave a fire hydrant well, thereby not affecting the external environment at the fire hydrant. The water leakage sealing ring 7 is used to prevent The fire water flows out along the guide rod. According to the depth of the local permafrost layer, the underground part of the bolt body can be lengthened. The permeable hole is located at the lower end of the steel pipe support and is a rectangular hole. The lower edge of the rectangular hole is flush with the bottom surface of the water inlet chamber to ensure water inlet All water in the cavity can be drained. Wire rope 27 passes through the perforation in the middle of the top plate 23 of the steel pipe support and stretches into its inside and is fixed together with the center of the water outlet pressure plate.

When the utility model is in use, the fire hydrant body is in a sealed state as shown in Figure 1, and because the pressure plate 18 and the sealing ring 19 are closely fitted, it is difficult for the water in the water inlet 32 to enter the fire hydrant cavity. At this time, the lower end of the guide plate 16 pulls the drain port pressure plate 28 through the steel wire rope 27, so that the drain port pressure plate is separated from the drain port sealing ring 22, so that the water in the fire hydrant cavity enters the steel pipe support through the water permeable hole 21, and finally is discharged through the drain port 29 Outside the cavity of the fire hydrant, the drain can take over the pipe to discharge water into the sewer, or lay pebbles at the drain or build a small underground pool to allow the water to slowly seep into the ground.

As shown in Figure 2, the fire hydrant body is in the working state (water outlet state). When fire water is needed, loosen the rotating handle 3 to drive the guide rod 4, so that the pressure plate 18 is separated from the sealing ring 19, so that water flows into the fire hydrant cavity from the water inlet. Simultaneously because guide plate 16 moves upwards, wire rope 27 is loosened, and water outlet pressure plate 28 is closely fitted with water outlet sealing ring 22 under the effect of compression spring 26, thereby makes fire-fighting water flow out from upper water outlet.

Compared with the prior art, the utility model is novel and unique in structure, simple and reasonable. By setting a bearing between the guide rod and the guide plate, the rotation of the guide rod will not drive the guide plate to rotate but will drive it to slide up and down. Under the joint action of the spring, the pressure plate of the drain port is controlled to lift up and down. When the fire hydrant is in a sealed state, the drain port is connected; At the same time, the sealing ring of the water outlet is flush with the bottom plate of the water inlet chamber, the lower edge of the permeable hole at the lower end of the steel pipe support is flush with the bottom surface of the water inlet chamber, and the upper edge of the water hole is higher than the upper surface of the pressure plate of the water outlet, thus ensuring the fire hydrant The water in the fire hydrant body can be drained cleanly, effectively preventing the outdoor fire hydrant from freezing and blocking in winter; this design can discharge all the water in the fire hydrant body in a coordinated manner. The length of the underground part of the fire hydrant can be modified according to the depth of the local permafrost. The hydrant body is beautiful and generous, the antifreeze effect is good, and it is easy to use. It is an innovation in fire hydrants.

Claims (10)

1. An outdoor antifreeze fire hydrant, including a fire hydrant body, the fire hydrant body includes an above-ground part of the cock (1) above the ground (33) and an underground part of the cock (2) below the ground (33), the above-ground part of the cock ( The side wall of 1) is provided with a first water outlet (8) and a second water outlet (9) connected to its inner cavity, and the lower end of the underground part of the plug body (2) is provided with a water inlet pipeline connected to its inner cavity (32), a vertical guide rod (4) is arranged inside the fire hydrant body, and the upper part of the guide rod (4) protrudes from the upper end of the fire hydrant body through the fixing groove set on the upper end of the bolt body on the ground, and a rotating handle ( 3), the lower end of the guide rod (4) is provided with a pressure plate (18), and the upper end of the water inlet pipe (32) is provided with a sealing ring (19) corresponding to the pressure plate (18). Turn the rotary handle (3) to control the guide rod (4) Slide up and down along the fixing groove, drive the pressure plate (18) to fit or separate from the sealing ring (19), and constitute the water inflow control structure of the fire hydrant body, characterized in that the lower end of the underground part of the bolt body (2) A water inlet chamber (34) is provided, and the water inlet pipe (32) extends into the water inlet chamber (34). The bottom of the water inlet chamber (34) is provided with a water discharge port (29) connecting inside and outside, and the water discharge port (29) is provided at the inlet end. There is a drain port sealing ring (22) flush with the bottom surface of the water inlet chamber (34), a steel pipe support (20) is arranged above the drain port sealing ring (22), and the guide rod (4) in the water inlet chamber (34) The upper bearing (10) is sleeved with a guide plate (16) moving up and down, the lower end of the guide plate (16) is connected with a steel wire rope (27), and one end of the steel rope (27) is fixedly connected with the guide plate (16). One end bypasses the fixed pulley (24) and then extends into the steel pipe support (20) and is fixedly connected with the water outlet pressure plate (28) arranged in the steel pipe bracket, moving the guide plate downwards to drive the water discharge pressure plate (28) to move upwards, It constitutes the separation control structure between the water outlet pressing plate and the water outlet sealing ring, and a compression spring (26) is arranged between the water outlet pressing plate (28) and the top plate (23) of the steel pipe support, forming the connection between the water outlet pressing plate and the water outlet sealing ring. Fitting the reset structure, the lower end of the steel pipe bracket is provided with a permeable hole (21) through the inside and outside, when the pressure plate (18) and the sealing ring (19) are attached, the pressure plate (28) of the water outlet and the sealing ring (22) of the water outlet ) phase separation. 2. The outdoor antifreeze fire hydrant according to claim 1, characterized in that, the lower part of the water inlet pipe (32) protrudes from the fire hydrant body, and a flange (30) for connection is provided on the protruding end. 3. The outdoor antifreeze fire hydrant according to claim 1, characterized in that, the fixing grooves include an upper fixing groove (5) and a lower fixing groove (6) respectively arranged on the upper and lower parts of the top surface of the fire hydrant body, and the upper fixing groove The groove (5) and the center hole of the lower fixing groove (6) are provided with an internal thread, and the guide rod is provided with an external thread corresponding to the internal thread, forming a rotating and sliding structure of the guide rod. 4. The outdoor antifreeze fire hydrant according to claim 1, characterized in that a water-leakage sealing ring (7) is provided between the guide rod and the fire hydrant body. 5. The outdoor antifreeze fire hydrant according to claim 1, characterized in that, a lower bearing (13) is arranged between the pressure plate (18) and the guide rod (4). 6. The outdoor antifreeze fire hydrant according to claim 1, characterized in that, the fixed pulley (24) is fixed on the pulley support plate (25) in the water inlet chamber (34). 7. The outdoor antifreeze fire hydrant according to claim 1, characterized in that, the lower edge of the permeable hole (21) is flush with the bottom surface of the water inlet chamber (34), when the pressure plate (18) and the sealing ring (19) When in the pasted state, the upper edge of the permeable hole (21) is higher than the upper surface of the water outlet pressure plate (28). 8. The outdoor antifreeze fire hydrant according to claim 1, characterized in that, the pressure plate (18) is filled with thermal insulation material (17). 9. The outdoor antifreeze fire hydrant according to claim 1, characterized in that, the first water outlet (8) and the second water outlet (9) are horizontally arranged on the side wall of the ground part of the hydrant (1) , the axes of the first water outlet (8) and the second water outlet (9) are perpendicular, the inner diameter of the first water outlet (8) is 65 mm, and the inner diameter of the second water outlet (9) is 100 mm. 10. The outdoor antifreeze fire hydrant according to claim 1, characterized in that, the water inlet chamber (34) is a cuboid structure.