阅读说明：本技术 一种消火栓 (Fire hydrant ) 是由 苏亚丽 张伟伟 马玉 于 2021-09-09 设计创作，主要内容包括：本发明公开了一种消火栓,包括阀门和缓冲管,其中：缓冲管具有内连接腔和外连接腔,内连接腔具有内进液孔和内出液孔,内进液孔和内出液孔均与内连接腔连通,外连接腔具有外出液孔,内连接腔和外连接腔通过内出液孔连通,内出液孔与外出液孔的轴线相交；阀门固定在缓冲管上,且阀门与外出液孔连通。本发明中,所提出的消火栓,由于内出液孔的轴线与外出液孔的轴线相交,进而使液体撞击内连接腔外壁后在撞击外连接腔内壁进而减小液体对阀门的撞击,进而增大阀门的使用寿命。(The invention discloses a fire hydrant, which comprises a valve and a buffer pipe, wherein: the buffer tube is provided with an inner connecting cavity and an outer connecting cavity, the inner connecting cavity is provided with an inner liquid inlet hole and an inner liquid outlet hole, the inner liquid inlet hole and the inner liquid outlet hole are both communicated with the inner connecting cavity, the outer connecting cavity is provided with an outer liquid outlet hole, the inner connecting cavity is communicated with the outer connecting cavity through the inner liquid outlet hole, and the inner liquid outlet hole is intersected with the axis of the outer liquid outlet hole; the valve is fixed on the buffer tube and is communicated with the liquid outlet hole. According to the fire hydrant provided by the invention, the axis of the inner liquid outlet hole is intersected with the axis of the outer liquid outlet hole, so that the liquid impacts the inner wall of the outer connecting cavity after impacting the outer wall of the inner connecting cavity, the impact of the liquid on the valve is further reduced, and the service life of the valve is further prolonged.)

1. A fire hydrant, comprising a valve (1) and a connecting pipe, wherein: valve (1) and buffer tube (2), wherein:

the buffer tube (2) is provided with an inner connecting cavity (200) and an outer connecting cavity (201), the inner connecting cavity (200) is provided with an inner liquid inlet hole (202) and an inner liquid outlet hole (203), the inner liquid inlet hole (202) and the inner liquid outlet hole (203) are both communicated with the inner connecting cavity (200), the outer connecting cavity (201) is provided with an outer liquid outlet hole (204), the inner connecting cavity (200) is communicated with the outer connecting cavity (201) through the inner liquid outlet hole (203), and the axis of the inner liquid outlet hole (203) is intersected with the axis of the outer liquid outlet hole (204);

the valve (1) is fixed on the buffer tube (2), and the valve (1) is communicated with the liquid outlet hole (204).

2. The hydrant according to claim 1, characterised in that the buffer tube (2) comprises a connection disc (20), an outer tube (21), an inner tube (22) and a plug block (23), where:

one end of the inner tube (22) is fixed on the connecting disc (20), the blocking block (23) is fixed at the other end of the inner tube (22) and used for blocking the inner tube (22), and the inner tube (22), the blocking block (23) and the connecting disc (20) form an inner connecting cavity (200);

the outer pipe (21) is fixed on the connecting disc (20) and sleeved outside the inner pipe (22), and the inner pipe (22), the outer pipe (21), the blocking block (23) and the connecting disc (20) form an outer connecting cavity (201);

an inner liquid inlet hole (202) is formed in the connecting disc (20), an inner liquid outlet hole (203) is formed in the outer side wall of the inner tube (22), and an outer liquid outlet hole (204) is a liquid outlet of one end, far away from the connecting disc (20), of the outer tube (21).

3. The hydrant in claim 2, wherein the surface of the chock (23) opposite to the connecting disc (20) is a curved surface which is convex in a direction away from the connecting disc (20).

4. A hydrant according to claim 3 in which the axis of the inner exit hole (203) is tangential to the arc of the chock (23).

5. The hydrant according to claim 2 further comprising an intermediate tube (24), wherein the intermediate tube (24) is mounted on the connecting plate (20) and the intermediate tube (24) is located between the outer tube (21) and the inner tube (22), wherein a buffer space is formed between the inner tube (22), the intermediate tube (24) and the connecting plate (20), and a waste containing space is formed between the connecting plate (20), the outer tube (21) and the intermediate tube (24).

6. The hydrant in claim 5, wherein the intermediate pipe (24) has a plurality of snap-fit holes (240) formed in an inner sidewall thereof.

7. A hydrant according to claim 6 in which the inner exit hole (203) is opposite the side wall of the intermediate tube (24).

8. The hydrant according to any one of claims 2-7 in which the inner diameter of the end of the intermediate pipe (24) remote from the connecting disc (20) tapers from the end remote from the connecting disc (20) towards the end adjacent the connecting disc (20).

9. The hydrant according to claim 2, wherein the outer surface of the chock (23) is a curved surface that is convex in a direction away from the connecting disc (20).

10. A hydrant according to claim 2 further comprising a filter net (3), wherein the filter net (3) is fixed to the outer pipe (21), and the liquid in the outer connecting chamber (201) is discharged from the liquid outlet port via the filter net (3).

Technical Field

The invention relates to the technical field of fire fighting equipment, in particular to a fire hydrant.

Background

A fire hydrant, called fire hydrant formally, is a fixed fire-fighting equipment, and mainly has the functions of controlling combustible substances, isolating combustion-supporting substances and eliminating ignition sources. It is divided into indoor fire hydrant and outdoor fire hydrant. The general fire hydrant includes valve and connecting pipe, and the valve is fixed on the connecting pipe, and the outside water pipe intercommunication outside the connecting pipe, the water in the outside water pipe has certain pressure, has certain impact to the valve, especially when the valve is opened the moment to the punching press of valve than great and then reduce the life of valve, has used for a long time the phenomenon that the valve produced the weeping.

Disclosure of Invention

The invention provides a fire hydrant in order to solve the technical problems in the background technology.

The invention provides a fire hydrant, which comprises a valve and a connecting pipe, wherein: a valve and a buffer tube, wherein:

the buffer tube is provided with an inner connecting cavity and an outer connecting cavity, the inner connecting cavity is provided with an inner liquid inlet hole and an inner liquid outlet hole, the inner liquid inlet hole and the inner liquid outlet hole are both communicated with the inner connecting cavity, the outer connecting cavity is provided with an outer liquid outlet hole, the inner connecting cavity is communicated with the outer connecting cavity through the inner liquid outlet hole, and the inner liquid outlet hole is intersected with the axis of the outer liquid outlet hole;

the valve is fixed on the buffer tube and is communicated with the liquid outlet hole.

As a further optimized scheme of the invention, the buffer tube comprises a connecting disc, an outer tube, an inner tube and a plugging block, wherein:

one end of the inner pipe is fixed on the connecting disc, the blocking block is fixed at the other end of the inner pipe and used for blocking the inner pipe, and the inner pipe, the blocking block and the connecting disc form an inner connecting cavity;

the outer pipe is fixed on the connecting disc and sleeved outside the inner pipe, and the inner pipe, the outer pipe, the blocking block and the connecting disc form an outer connecting cavity;

an inner liquid inlet hole is formed in the connecting disc, an inner liquid outlet hole is formed in the outer side wall of the inner tube, and an outer liquid outlet hole is a liquid outlet of one end, far away from the connecting disc, of the outer tube.

As a further optimized scheme of the invention, the surface of the blocking block, which is opposite to the connecting disc, is an arc surface which protrudes towards the direction far away from the connecting disc.

As a further optimized scheme of the invention, the axis of the inner liquid outlet hole is tangent to the cambered surface of the blocking block.

As a further optimized scheme of the invention, the waste collecting device further comprises an intermediate pipe, wherein the intermediate pipe is arranged on the connecting disc and is positioned between the outer pipe and the inner pipe, a buffer space is formed among the inner pipe, the intermediate pipe and the connecting disc, and a waste accommodating space is formed among the connecting disc, the outer pipe and the intermediate pipe.

In order to further reduce the impact of water flow on the valve, as a further optimized scheme of the invention, the middle pipe is rotatably arranged on the connecting disc, so that when liquid discharged from the inner liquid outlet hole impacts the outer wall of the middle pipe, the middle pipe rotates to drive the liquid to rotate, and the impact of the liquid discharged from the liquid outlet hole on the valve is further reduced.

As a further optimized scheme of the invention, the inner side wall of the middle pipe is provided with a plurality of clamping holes.

As a further optimized scheme of the invention, the inner liquid outlet hole is opposite to the side wall of the middle tube, so that liquid directly impacts the middle tube, and the impact force of the liquid discharged from the liquid outlet hole on the valve is reduced.

As a further optimized scheme of the invention, the inner diameter of one end, far away from the connecting disc, of the middle pipe is gradually reduced from one end, far away from the connecting disc, to the direction close to the connecting disc.

As a further optimized scheme of the invention, the inner diameter of a liquid outlet at one end of the middle pipe far away from the connecting disc is smaller than the outer diameter of the inner pipe.

As a further optimized scheme of the invention, the outer surface of the plugging block is an arc surface protruding in the direction away from the connecting disc, and is preferably a spherical surface.

As a further optimized scheme of the invention, the liquid-discharging device further comprises a filter screen, wherein the filter screen is fixed on the outer pipe, and the liquid in the outer connecting cavity is discharged from the liquid outlet through the filter screen.

As a further optimized scheme of the invention, the aperture of the inner liquid inlet hole on the connecting disc is smaller than the inner diameter of the inner pipe, so that the impact on the valve is further reduced, and the service life of the valve is prolonged.

According to the fire hydrant provided by the invention, the buffer tube is connected with an external pipeline, so that the inner liquid inlet hole is communicated with the external pipeline, liquid enters the inner connecting cavity from the inner liquid inlet hole and then is discharged into the outer connecting cavity from the inner liquid outlet hole, the liquid in the outer connecting cavity is discharged to the valve through the outer liquid outlet hole, and as the axis of the inner liquid outlet hole is intersected with the axis of the outer liquid outlet hole, the liquid impacts the inner wall of the outer connecting cavity after impacting the outer wall of the inner connecting cavity, so that the impact of the liquid on the valve is reduced, and the service life of the valve is prolonged.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a connecting tube according to the present invention;

FIG. 3 is a cross-sectional view of a connecting tube of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar designations denote like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

A fire hydrant as shown in fig. 1-3, wherein: valve 1 and buffer pipe 2, wherein:

the buffer tube 2 is provided with an inner connecting cavity 200 and an outer connecting cavity 201, the inner connecting cavity 200 is provided with an inner liquid inlet hole 202 and an inner liquid outlet hole 203, the inner liquid inlet hole 202 and the inner liquid outlet hole 203 are both communicated with the inner connecting cavity 200, the outer connecting cavity 201 is provided with an outer liquid outlet hole 204, the inner connecting cavity 200 and the outer connecting cavity 201 are communicated through the inner liquid outlet hole 203, and the axes of the inner liquid outlet hole 203 and the outer liquid outlet hole 204 are intersected;

the valve 1 is fixed on the buffer tube 2, and the valve 1 is communicated with the liquid outlet hole 204;

specifically, buffer tube 2 includes connection disc 20, outer tube 21, intermediate tube 24, inner tube 22 and plug block 23, wherein:

the lower end of the inner tube 22 is fixed on the connecting disc 20, the inner tube 22 is vertically fixed on the connecting disc 20, the blocking block 23 is fixed at the upper end of the inner tube 22 in a welding mode and used for blocking the inner tube 22, and the inner tube 22, the blocking block 23 and the connecting disc 20 form an inner connecting cavity 200;

the outer tube 21 is fixed on the connecting disc 20 and sleeved outside the inner tube 22, the axis of the outer tube 21 is overlapped with the axis of the inner tube 22, the outer tube 21, the plugging block 23 and the connecting disc 20 form an outer connecting cavity 201, the height of the outer tube 21 is higher than that of the inner tube 22, and the valve 1 is fixed on the outer tube 21;

a vertical inner liquid inlet hole 202 is formed in the connecting disc 20, the inner liquid inlet hole 202 is communicated with the inner tube 22, an inner liquid outlet hole 203 is formed in the outer side wall of the inner tube 22, and an outer liquid outlet hole 204 is a liquid outlet with an upper opening at one end, far away from the connecting disc 20, of the outer tube 21;

the outer part of the blocking block 23 is hemispherical, a spherical groove is formed in the blocking block 23, the spherical groove is opposite to the inner liquid inlet hole 202, the surface of the blocking block 23, which is positioned in the inner connecting cavity 200, is an upward convex spherical surface, so that the flow rate of liquid flowing in from the inner liquid inlet hole 202 is changed after the liquid collides with the spherical groove and then is discharged from the inner liquid outlet hole 203, the impact force of the liquid on the valve 1 is reduced, and the service life of the valve 1 is prolonged;

specifically, the axis of the inner liquid outlet 203 is tangent to the arc surface of the blocking block 23, so that the impact of liquid on the outer wall of the inner tube 22 is reduced;

the middle tube 24 is vertically and rotatably mounted on the connecting disc 20, the middle tube 24 is located between the outer tube 21 and the inner tube 22, the axis of the middle tube 24 is overlapped with the axis of the inner tube 22, a buffer space is formed among the inner tube 22, the middle tube 24 and the connecting disc 20, a waste accommodating space is formed among the connecting disc 20, the outer tube 21 and the middle tube 24, the inner liquid outlet hole 203 is opposite to the side wall of the middle tube 24, a plurality of clamping holes 240 are formed in the inner side wall of the middle tube 24, the aperture of the preferred clamping holes 240 is gradually increased from one end far away from the axis of the middle tube 24 to one end close to the axis of the middle tube 24, impurities in liquid impact the inner wall of the middle tube 24 along with the liquid, the impurities are further clamped in the clamping holes 240, and the service life of the valve 1 is further prolonged;

the inner diameter of one end, far away from the connecting disc 20, of the middle tube 24 is gradually reduced from one end, far away from the connecting disc 20, to the direction close to the connecting disc 20, the upper end of the middle tube 24 is conical, the inner diameter of the uppermost end of the middle tube 24 is the minimum aperture, and the inner diameter of a liquid outlet, far away from the connecting disc 20, of the middle tube 24 is smaller than the outer diameter of the inner tube 22;

the liquid filter further comprises a filter screen 3, the filter screen 3 is fixed on the outer pipe 21, and the liquid in the outer connecting cavity 201 is discharged from the liquid outlet through the filter screen 3;

the aperture of the inner liquid inlet hole 202 on the connecting disc 20 is smaller than the inner diameter of the inner tube 22, so that the impact on the valve 1 is further reduced, and the service life of the valve 1 is prolonged;

further, the lower surface of the connection disc 20 is a spherical surface protruding downward.

In the working process of the embodiment: the connecting disc 20 is connected with an external water pipe, the external water pipe is communicated with the inner liquid inlet hole 202, the inner diameter of the external water pipe is larger than the aperture of the inner liquid inlet hole 202, and part of liquid in the external pipe impacts a convex spherical surface on the lower surface of the connecting disc 20, so that the impact force of water on the ball valve is reduced;

the liquid flows axially along the inner pipe 22 from the inner liquid inlet, namely flows upwards and collides with the spherical wall of the blocking block 23 which protrudes upwards, so that the flow speed of the liquid is changed;

liquid is discharged to the buffer space between the inner tube 22 and the middle tube 24 from the inner liquid outlet hole 203, and impacts the inner wall of the middle tube 24, the middle tube 24 rotates, sundries in the liquid are clamped on the clamping hole 240, the flow rate is changed, the liquid flows out from the upper opening of the middle tube 24, and impacts the inner wall of the conical part of the middle tube 24 and the outer wall of the blocking block 23, and as the outer part of the blocking block 23 is spherical, the force on the blocking block 23 is uniform, and the connection stability between the blocking block 23 and the inner tube 22 is improved;

the liquid discharged from the middle pipe 24 is discharged from the liquid outlet hole 204 through the filter screen 3, the impurities on the filter screen 3 can fall between the outer pipe 21 and the middle pipe 24 under the action of self gravity, and the filter screen 3 is hemispherical in order to enable the impurities to fall between the outer pipe 21 and the inner middle pipe 24;

in the process, the flow rate of the liquid is changed for many times and the intermediate pipe 24 is driven to rotate, so that the impact force of the liquid on the valve 1 is reduced, and the service life of the fire hydrant is prolonged.

In order to facilitate the production manufacture of the buffer tube 2, it is preferred in this embodiment that the buffer tube 2 comprises a connection disc 20, an outer tube 21, an inner tube 22 and a plugging block 23, wherein:

one end of the inner tube 22 is fixed on the connecting disc 20 in a welding mode, the blocking block 23 is fixed at the other end of the inner tube 22 and used for blocking the inner tube 22, and the inner tube 22, the blocking block 23 and the connecting disc 20 form an inner connecting cavity 200;

the outer pipe 21 is fixed on the connecting disc 20 in a welding mode and sleeved outside the inner pipe 22, and the inner pipe 22, the outer pipe 21, the plugging block 23 and the connecting disc 20 form an outer connecting cavity 201;

an inner liquid inlet hole 202 is formed in the connecting disc 20, an inner liquid outlet hole 203 is formed in the outer side wall of the inner tube 22, and an outer liquid outlet hole 204 is a liquid outlet at one end of the outer tube 21 far away from the connecting disc 20.

In order to further reduce the impact on the stopper piece 23, it is preferable in the present embodiment that the surface of the stopper piece 23 opposite to the connection disc 20 is an arc surface that is convex in a direction away from the connection disc 20.

In the present embodiment, the axis of the inner liquid outlet 203 is preferably tangent to the arc surface of the blocking piece 23, so as to reduce the impact on the inner tube 22.

In the present embodiment, it is preferable that an intermediate pipe 24 is further included, the intermediate pipe 24 is mounted on the connecting plate 20, the intermediate pipe 24 is located between the outer pipe 21 and the inner pipe 22, a buffer space is formed between the inner pipe 22, the intermediate pipe 24 and the connecting plate 20, and a waste accommodating space is formed between the connecting plate 20, the outer pipe 21 and the intermediate pipe 24, so as to further reduce the impact of the liquid on the valve 1.

In order to further reduce the impact of the water flow on the valve 1, it is preferable in this embodiment that the middle tube 24 is rotatably mounted on the connecting disc 20, and when the liquid discharged from the inner liquid outlet 203 impacts the outer wall of the middle tube 24, the middle tube 24 rotates to drive the liquid to rotate, so as to reduce the impact of the liquid discharged from the liquid outlet on the valve 1.

In order to collect the impurities in the liquid during the process, it is preferable in this embodiment that the inner sidewall of the middle tube 24 is provided with a plurality of clamping holes 240.

In this embodiment, it is preferable that the inner exit holes 203 are opposite to the side wall of the intermediate tube 24, so that the liquid directly impacts the intermediate tube 24, and the impact force of the liquid discharged from the exit holes on the valve 1 is reduced.

In the present embodiment, it is preferable that the inner diameter of the end of the middle tube 24 far from the connecting plate 20 is gradually reduced from the end far from the connecting plate 20 to the direction close to the connecting plate 20, thereby increasing the stability of the connection between the plugging block 23 and the inner tube 22.

In order to further increase the stability of the connection between the blocking block 23 and the inner tube 22, it is preferable in this embodiment that the inner diameter of the liquid outlet of the end of the middle tube 24 away from the connecting plate 20 is smaller than the outer diameter of the inner tube 22.

In this embodiment, the outer surface of the blocking piece 23 is preferably a cambered surface protruding away from the connecting plate 20, and is preferably a spherical surface, so that the external force applied to the blocking piece 23 is uniform, and the stability of the connection between the blocking piece 23 and the inner tube 22 is further increased.

In order to further reduce the impact of impurities in the liquid on the sealing member of the valve 1, it is preferable in this embodiment to further include a filter screen 3, the filter screen 3 is fixed on the outer tube 21, and the liquid in the outer connection cavity 201 is discharged from the liquid outlet through the filter screen 3.

In this embodiment, preferably, the inner liquid inlet hole 202 on the connecting disc 20 has a smaller diameter than the inner diameter of the inner tube 22, so as to further reduce the impact on the valve 1 and increase the service life of the valve 1.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.