CN215253179U

CN215253179U - Fire hydrant

Info

Publication number: CN215253179U
Application number: CN202120474795.5U
Authority: CN
Inventors: 白顺梅; 孙海东; 王文海; 严雄仲; 孙海新; 宋万成; 马汉晓; 张荣子; 梁海飞; 陈卫红
Original assignee: Qinghai Salt Lake Industry Co Ltd
Current assignee: Qinghai Salt Lake Industry Co Ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-12-21
Anticipated expiration: 2031-03-05

Abstract

The utility model discloses a fire hydrant, its including the bolt body, with bolt body coupling's lower disk seat, locate bolt internal control rod and locating case in the disk seat down, the control rod with the case is connected, the case is equipped with and runs through the first limbers on it, the disk seat is equipped with the second limbers hole that runs through on it down, be equipped with the drainage channel with external intercommunication on the bolt body, be equipped with the sealing ring that the slope set up in the drainage channel, locate the axis of rotation at sealing ring top and with the baffle that the sealing ring matches, the baffle with the axis of rotation is rotated and is connected. The utility model provides a fire hydrant passes through the compaction and the separation of baffle and sealing ring, realizes automatic drainage, and ponding is clean very easily for the internal no ponding of bolt of fire hydrant, protection fire hydrant are not by the frost crack, simple structure, drainage are effectual.

Description

Fire hydrant

Technical Field

The utility model relates to a fire control facility technical field especially relates to a fire hydrant prevents frostbite.

Background

The fire hydrant is one of the most important safety facilities for protecting enterprises from fire or reducing fire loss and ensuring the safety of staff life, state and enterprise property, and is an indispensable part in enterprise safety production. It can provide the water source for the fire engine fast, and when the conflagration was in the protection radius range of fire hydrant, can directly be used for putting out a fire.

However, in saline-alkali soil with a special geological structure, the temperature difference is large, the temperature is low in winter, a large amount of fire water is easy to store in the hydrant body after the hydrant is used or tested, the hydrant can be frozen and blocked at low temperature, so that the hydrant cannot be used continuously, a drainage valve for draining water is arranged at the bottom of part of the hydrant, the failure rate of the drainage valve is high, accumulated water is not easy to drain, the hydrant body is frozen and cracked, or the drainage valve is not closed tightly, so that a water leakage phenomenon occurs, and once a fire disaster occurs, serious loss can be caused to lives and properties of people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire hydrant is in order to solve among the prior art fire hydrant that ponding is difficult for the drainage so that the problem of bolt body by the frost crack.

In order to achieve the above object, the present invention provides the following technical solutions: a fire hydrant comprises a hydrant body, a lower valve seat connected with the hydrant body, a control lever arranged in the hydrant body and a valve core arranged in the lower valve seat, wherein the control lever is connected with the valve core, the valve core is provided with a first water through hole penetrating through the valve core, the lower valve seat is provided with a second water through hole penetrating through the lower valve seat, the hydrant body is provided with a drainage channel communicated with the outside, a sealing ring obliquely arranged, a rotating shaft arranged at the top of the sealing ring and a baffle matched with the sealing ring are arranged in the drainage channel, and the baffle is rotatably connected with the rotating shaft;

the valve core rotates synchronously along with the operating rod relative to the lower valve seat, when the first water through hole is correspondingly communicated with the second water through hole, the fire hydrant is in an open state and is communicated with water, the baffle covers the sealing ring to seal under the action of water pressure, and the drainage channel is closed; when the first limbers are closed by the lower valve seat, the fire hydrant is in a closed state and is subjected to the action of self gravity, the baffle falls, a gap exists between the sealing ring and the fire hydrant, the drainage channel is opened, and water in the hydrant body is discharged from the gap.

Further, the sealing ring is arranged obliquely upwards towards the direction close to the bolt body, and the included angle between the sealing ring and the horizontal plane is larger than 90 degrees.

Further, the sealing ring is arranged obliquely upwards towards the direction close to the bolt body, and the included angle between the sealing ring and the horizontal plane is 135 degrees.

Further, the drainage channel is arranged at the lower part of the bolt body and close to the lower valve seat.

Further, the baffle is circular.

Further, the drainage channel is L-shaped, and the tail end of the drainage channel faces downwards.

Further, the periphery of the end of the drainage channel is filled with crushed sand.

Further, the fire hydrant also comprises a sealing ring arranged between the operating rod and the hydrant body.

Further, the hydrant also includes a cartridge securing ring that secures the cartridge within the lower seat.

Further, the valve core and the operating rod are of an integrated structure.

Compared with the prior art, the utility model provides a fire hydrant has following advantage:

the utility model provides a relative rotation that fire hydrant passes through case and lower disk seat realizes leading to water and drainage, when first limbers corresponds the intercommunication with the second limbers, the water pressure effect makes the baffle cover the sealing ring in order to seal, and when first limbers were closed by lower disk seat, the internal water pressure drop of bolt is normal pressure state, the baffle receives the effect of gravity to influence and separates with the sealing ring, automatically, the drainage carries out, compaction and separation through baffle and sealing ring, ponding is very easy to be arranged, make the internal ponding that does not have of bolt of fire hydrant, the protection fire hydrant is not by the frost crack, moreover, the steam generator is simple in structure, the drainage effect is good.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. In the drawings:

fig. 1 is a schematic structural view of a preferred embodiment of a fire hydrant according to the present invention in an open state;

FIG. 2 is an enlarged view of portion A of the hydrant of FIG. 1;

FIG. 3 is a schematic view of the hydrant of FIG. 1 at another angle in a closed state;

fig. 4 is an enlarged view of portion B of the hydrant shown in fig. 3.

Reference numerals:

the fire hydrant comprises a bolt body 1, a drainage channel 11, a 111 sealing ring, a rotating shaft 112, a baffle 113, a water outlet 12, a lower valve seat 2, a second water through hole 21, a control lever 3, a valve core 4, a first water through hole 41, a fire hydrant gland 5, a wrench 6, a sealing ring 7 and a valve core fastening ring 8.

Detailed Description

The present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific examples described in the following embodiments of the present invention are merely illustrative of specific embodiments of the present invention and do not constitute limitations on the scope of the invention.

The invention is further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 4, wherein fig. 1 is a schematic structural view of a fire hydrant according to a preferred embodiment of the present invention in an open state; FIG. 2 is an enlarged view of portion A of the hydrant of FIG. 1; FIG. 3 is a schematic view of the hydrant of FIG. 1 at another angle in a closed state; fig. 4 is an enlarged view of portion B of the hydrant shown in fig. 3. The dotted lines and arrows in the figure represent the direction of water flow.

The embodiment is a fire hydrant, which comprises a hydrant body 1, a lower valve seat 2 connected with the hydrant body 1, an operating lever 3 arranged in the hydrant body 1, and a valve core 4 arranged in the lower valve seat 2, wherein the operating lever 3 is connected with the valve core 4, the valve core 4 is provided with a first water through hole 41 penetrating through the valve core 4, the lower valve seat 2 is provided with a second water through hole 21 penetrating through the lower valve seat,

the bolt body 1 is provided with a drainage channel 11 communicated with the outside, the drainage channel 11 is internally provided with a sealing ring 111 which is obliquely arranged, a rotating shaft 112 arranged at the top of the sealing ring 111 and a baffle 113 matched with the sealing ring 111, and the baffle 113 is rotatably connected with the rotating shaft 112;

the valve core 4 rotates synchronously with the operating rod 3 relative to the lower valve seat 2, when the first water through hole 41 is correspondingly communicated with the second water through hole 21, the fire hydrant is in an open state to conduct water, the baffle 113 covers the sealing ring 111 to seal under the action of water pressure, and the drainage channel 11 is closed; when the first water passage hole 41 is closed by the lower valve seat 2, the hydrant is in a closed state, the baffle 113 falls down by its own weight, a gap is formed between the baffle and the seal ring 111, the drain passage 11 is opened, and water in the hydrant body 1 is discharged from the gap.

The application provides a fire hydrant passes through case and lower disk seat's relative rotation and realizes limbers and drainage, when first limbers corresponds the intercommunication with the second limbers, hydraulic action makes the baffle cover the sealing ring in order to seal, and when first limbers was closed by disk seat down, the internal water pressure drop of bolt is normal pressure state, the baffle receives the effect of gravity to influence and separates with the sealing ring, automatically, the drainage, compaction and separation through baffle and sealing ring, ponding is very easy to be arranged, make the internal ponding that does not have of bolt of fire hydrant, the protection fire hydrant is not by the frost crack, moreover, the steam generator is simple in structure, the drainage effect is good.

The hydrant body 1 is the main structure of the fire hydrant, and the hydrant body 1 is partially arranged on the ground and partially arranged under the ground.

The drainage channel 11 is arranged at the lower part of the bolt body 1 and is close to the lower valve seat 2, so that drainage dead angles are reduced, and the drainage effect is improved. Drainage channel 11 is the L type, and its end is down, avoids ponding to remain in drainage channel 11.

The periphery of the end of the drainage channel 11 is filled with crushed sand. When the fire hydrant drainage device is installed, the position of the drainage channel 11 is arranged below the depth of an anti-freezing layer, and the upper part, the lower part and the periphery of the drainage channel 11 are filled with a certain amount of crushed sand stones (with the thickness of about 400mm-500 mm) so as to be beneficial to absorbing fire fighting water discharged when the fire hydrant is drained and preventing blockage after drainage.

In the drainage channel 11, the sealing ring 111 is arranged obliquely upwards towards the direction close to the bolt body 1, and the included angle between the sealing ring and the horizontal plane is more than 90 degrees.

In this embodiment, the sealing ring 111 is arranged obliquely upwards towards the direction close to the bolt body 1, and the included angle between the sealing ring and the horizontal plane is 135 degrees, so that the sealing and water draining effects are best.

The specification of the sealing ring 111 is matched with the inner wall of the drainage pipeline 11 and welded in the drainage pipeline 11, the thickness of the sealing ring 111 is 3mm-4mm, one side of the bolt body 1 is a sealing surface, and the sealing surface is required to be processed to be flat and smooth so as to ensure the sealing effect.

The top end of the sealing ring 111 is mounted with the rotating shaft 112 so that the baffle 113 can rotate around the rotating shaft 112, thereby achieving covering and separation with the sealing ring 111.

The baffle 113 is matched with the sealing surface of the sealing ring 111, the baffle 113 is circular, the specification of the baffle 113 is matched with that of the sealing ring 111, the thickness of the baffle 113 is 3mm-4mm, the contact surface of the baffle 113 and the sealing ring 111 needs to be processed smoothly, and tight sealing can be guaranteed after the baffle 113 and the sealing ring are compressed.

Two sides of the bolt body 1 are provided with 2 water outlets 12, in this embodiment, DN65, pn1.0mpa, DN80, pn1.0mpa are respectively provided.

The lower valve seat 2 is connected with the bolt body 1, and in the embodiment, the lower valve seat 2 and the bolt body 1 are of an integrated structure, so that the lower valve seat is convenient to process and install.

The lower valve seat 2 is provided with a second through hole 21 penetrating therethrough.

The second through hole 21 is used for letting through water, specifically, the lower valve seat 2 is a cylinder, the second through hole 21 is two circular passages, and the lower valve seat 2 is run through perpendicularly the symmetry sets up on the lower valve seat 2, the diameter of the second through hole 21 is 2/3 of the radius of the lower valve seat 2. Of course, the number, size, shape and distribution of the second water through holes 21 may be other, or may not be perpendicular to each other, and are designed according to the use condition of the fire hydrant and the surrounding geological conditions. The bottom end of the second water through hole 21 is a water inlet used for water inlet, and the specification is DN100 and PN1.0Mpa.

The operating lever 3 is arranged in the bolt body 1, and the operating lever 3 is rotated to enable the valve core 4 to synchronously rotate so as to change the corresponding communication state of the first water through hole 41 and the second water through hole 21 on the valve core 4.

The operating rod 3 is used as a rotating shaft, so that the fire hydrant is opened/closed by the rotating shaft, and the fire hydrant is labor-saving and convenient.

The fire hydrant also comprises a fire hydrant gland 5 for fixing the control lever 3 on the hydrant body 1, so that the stability of the control lever 3 is improved.

The fire hydrant also comprises a wrench 6 arranged on the fire hydrant gland 5 and used for rotating the operating rod 3 to open or close the fire hydrant. When the pressure of the fire fighting pipeline is maintained at 0.4-0.6 Mpa, the fire hydrant is opened or closed by rotating the wrench 6 with one hand.

The fire hydrant also comprises a sealing ring 7 arranged between the operating rod 3 and the hydrant body 1, and the sealing ring is used for sealing between the operating rod 3 and the hydrant body 1 and preventing fire fighting water from leaking outwards along the operating rod 3.

The valve core 4 is arranged in the lower valve seat 2, the valve core 4 is provided with a first water through hole 41 penetrating through the valve core 4, specifically, the valve core 4 is a cylinder, the first water through hole 41 is two circular channels vertically penetrating through the valve core 4, the valve core 4 is symmetrically arranged, and the diameter of the first water through hole 41 is 2/3 of the radius of the valve core 4. Of course, the number, size, shape and distribution of the first water passage holes 41 may be other, or may not be perpendicular to each other, and may be designed according to the use condition of the fire hydrant and the surrounding geological conditions.

The valve core 4 rotates synchronously with the operating rod 3 relative to the lower valve seat 2, when the first water through hole 41 is correspondingly communicated with the second water through hole 21, the fire hydrant is in an open state and is communicated with water, the baffle 113 covers the sealing ring 111 under the action of water pressure to seal, and water cannot leak from the sealing ring 111; when the operating lever 3 is rotated again, the first water passage hole 41 is closed by the lower valve seat 2, the hydrant is in a closed state, the interior of the hydrant body 1 is returned to a normal pressure state, the baffle 113 falls under the action of its own weight, a gap is formed between the baffle and the sealing ring 111, the drainage passage 11 is opened, and water in the hydrant body 1 is drained from the gap.

The first water passage hole 41 and the second water passage hole 21 have the same diameter. When the first water passage hole 41 corresponds to the second water passage hole 21, the water pressure is stable, and water is not likely to remain.

The valve core 4 and the operating rod 3 are of an integrated structure. Stable structure and convenient processing.

The hydrant also includes a cartridge securing ring 8 that secures the cartridge 4 within the lower seat 2. The valve core fastening ring 8 compresses the valve core 4 in the lower valve seat 2, so that the structure stability and the sealing performance are ensured. The valve core fastening ring 8 is fixed on the bolt body 1 through a fastening ring fixing pin.

The fire hydrant is connected with the fire fighting channel through a flange.

In this embodiment, all sealing forms of the sealing surfaces which are not particularly required are hard seals, such as sealing of the peripheral curved surface and the bottom surface of the valve element with the inner surface of the lower valve seat.

When a fire occurs, an operator firstly completely opens the water outlet 12 on the hydrant body 1, connects a fire hose or a water gun (or other fire extinguishing devices) with the corresponding water outlet 12, then rotates the operating lever 3 by 90 degrees anticlockwise by the wrench 6, the valve core 4 synchronously rotates along with the operating lever 3 relative to the lower valve seat 2, the first water through hole 41 is correspondingly communicated with the second water through hole 21, the fire hydrant is in an open state, and fire water is sprayed out through the water gun (or other fire extinguishing devices) to extinguish fire; at this time, under the action of the water pressure in the bolt body 1, the baffle 113 covers the sealing ring 111 to compact and seal, and water cannot leak from the sealing ring 111.

After the fire extinguishing operation is completed, the operating lever 3 is rotated by 90 degrees clockwise by the wrench 6, the valve element 4 rotates synchronously with the operating lever 3 relative to the lower valve seat 2, the first water passage hole 41 is closed by the lower valve seat 2, the fire hydrant is in a closed state, the interior of the hydrant body 1 returns to a normal pressure state, the baffle 113 falls under the action of self gravity, a gap exists between the baffle 113 and the sealing ring 111, the drainage channel 11 is opened, water in the hydrant body 1 is discharged from the gap, the maintenance cost is low, and the hydrant body 1 can be protected from frost cracking after the main valve of the fire hydrant is closed in winter.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim.

Claims

1. A fire hydrant is characterized by comprising a hydrant body (1), a lower valve seat (2) connected with the hydrant body (1), an operating rod (3) arranged in the hydrant body (1) and a valve core (4) arranged in the lower valve seat (2), wherein the operating rod (3) is connected with the valve core (4), the valve core (4) is provided with a first water through hole (41) penetrating through the valve core, the lower valve seat (2) is provided with a second water through hole (21) penetrating through the lower valve seat, the hydrant body (1) is provided with a drainage channel (11) communicated with the outside, a sealing ring (111) obliquely arranged, a rotating shaft (112) arranged at the top of the sealing ring (111) and a baffle (113) matched with the sealing ring (111) are arranged in the drainage channel (11), and the baffle (113) is rotatably connected with the rotating shaft (112);

the valve core (4) synchronously rotates along with the operating rod (3) relative to the lower valve seat (2), when the first water through hole (41) is correspondingly communicated with the second water through hole (21), the fire hydrant is in an open state and conducts water, the baffle (113) covers the sealing ring (111) to seal under the action of water pressure, and the drainage channel (11) is closed; when the first water passage hole (41) is closed by the lower valve seat (2), the fire hydrant is in a closed state, the baffle (113) falls under the action of self gravity, a gap is formed between the fire hydrant and the sealing ring (111), the drainage channel (11) is opened, and water in the hydrant body (1) is discharged from the gap.

2. A fire hydrant according to claim 1 in which the sealing ring (111) is arranged obliquely upwards towards the hydrant body (1) and at an angle greater than 90 ° to the horizontal.

3. A fire hydrant according to claim 2 in which the sealing ring (111) is inclined upwardly towards the body (1) and at an angle of 135 ° to the horizontal.

4. A fire hydrant according to claim 1 in which the drainage channel (11) is provided in the lower part of the hydrant body (1) adjacent the lower valve seat (2).

5. A fire hydrant according to claim 1 in which the baffle (113) is circular.

6. A fire hydrant according to claim 1 in which the drainage channel (11) is L-shaped with its end facing downwards.

7. A fire hydrant according to claim 6 in which the periphery of the end of the drainage channel (11) is filled with crushed sand.

8. A fire hydrant according to claim 1 further comprising a sealing ring (7) between the operating rod (3) and the hydrant body (1).

9. A fire hydrant according to claim 1 further comprising a core fastening ring (8) which secures the core (4) in the lower seat (2).

10. A fire hydrant according to any one of claims 1 to 9 in which the cartridge (4) is of integral construction with the lever (3).