Anti-collision outdoor fire hydrant

Abstract

The utility model relates to an anti-collision outdoor fire hydrant which comprises a flange bent pipe, a valve body and a hydrant body which are sequentially connected and communicated in a sealed mode from bottom to top, and the water inlet end of the flange bent pipe is connected with a municipal pipe network. A base spring is arranged on the lower portion of the valve body, a base of the base spring is connected to the bottom end of the valve body, one end of the base spring abuts against the base, and the other end of the base spring abuts against a side wall protrusion on the lower portion of the valve body through a sealing assembly and is used for blocking water inflow. One end of the transmission rod penetrates through the connecting sleeve to be inserted into one end of the valve rod, the other end of the valve rod extends to the top of the hydrant body, and the other end of the transmission rod extends into the valve body. After the outdoor fire hydrant is impacted by external force, even if some parts are broken or the hydrant body and the valve body are damaged, water can still be prevented from leaking, the valve is not opened, the problem that a large amount of municipal pipe network fire fighting water flows out due to the fact that exposed parts of the outdoor fire hydrant are damaged is solved, hidden dangers are eliminated, energy is saved, and loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fire water supply systems, in particular to an anti-collision outdoor fire hydrant. Background Art

[0002] At present, the outdoor fire hydrants commonly used in the market are basically ordinary fire hydrants. With the increasing number of vehicles, it is common for motor and non-motor vehicles to collide with outdoor fire hydrants. The structure of traditional outdoor fire hydrants makes it easy for them to be hit by external forces, causing the hydrant body to break and the valve stem to be damaged. Severe impacts may even destroy the integrity of the valve body, causing the outdoor fire hydrant to open, and a large amount of fire water to flow out, flooding roads and surface goods in industrial parks, which not only affects the city's image, but also causes damage to the surrounding environment and wastes a lot of municipal water resources. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide an anti-collision outdoor fire hydrant suitable for urban roads, industrial parks, docks and stations, public building parking lots and other places in view of the above-mentioned shortcomings.

[0004] The utility model is realized by the following technical solutions:

[0005] A collision-proof outdoor fire hydrant, the fire hydrant comprises a flange elbow, a valve body and a plug body which are sealed and connected in sequence from bottom to top, the water inlet end of the flange elbow is connected to the municipal pipe network; a base spring is arranged at the lower part of the valve body, the base of the base spring is connected to the bottom end of the valve body, one end of the spring of the base spring is abutted against the base, and the other end is abutted against the side wall protrusion of the lower part of the valve body through a sealing component, so as to block the water inlet; a connecting sleeve is arranged at the upper part of the plug body, one end of a transmission rod passes through the connecting sleeve and is plugged into one end of a valve stem, the other end of the valve stem extends out of the top of the plug body, and the other end of the transmission rod extends into the valve body; a reset spring is arranged in the connecting sleeve, the reset spring is sleeved on the transmission rod, one end of the reset spring is abutted against the bottom end of the connecting sleeve, and the other end is abutted against the outer wall protrusion of the transmission rod; when the valve stem moves up and down, the transmission rod moves up and down at the same time, thereby pushing or disengaging from the sealing component to control the water inlet switch.

[0006] Furthermore, in the anti-collision outdoor fire hydrant, a nut is fixedly provided on the top of the bolt body, and the valve stem has an external thread, which cooperates with the nut thread and is sleeved on the nut and extends out of the top of the bolt body.

[0007] Furthermore, for the anti-collision outdoor fire hydrant, when it is necessary to open the fire hydrant, the protruding part of the valve stem is rotated, and the external thread of the valve stem and the nut act to move it downward, driving the transmission rod to move downward, pushing the sealing assembly to move downward and disengage from the side wall protrusion at the lower part of the valve body, thereby opening the water inlet; when it is necessary to close the fire hydrant, the protruding part of the valve stem is rotated in the opposite direction, and the external thread of the valve and the nut act to move it upward, and the transmission rod moves upward under the action of the reset spring, and at the same time, the sealing assembly moves upward under the action of the base spring until the transmission rod is disengaged from the sealing assembly, and the sealing assembly stops at the side wall protrusion at the lower part of the valve body, thereby closing the water inlet.

[0008] Furthermore, in the anti-collision outdoor fire hydrant, the sealing assembly includes a blocking member and a sealing member, the blocking member is connected to the spring of the base spring, and the sealing member is arranged between the blocking member and the side wall protrusion of the lower part of the valve body.

[0009] Furthermore, the anti-collision outdoor fire hydrant also includes a cap connected to the hydrant body.

[0010] Furthermore, in the anti-collision outdoor fire hydrant, the other end of the valve stem extends out of the top of the cap at the same time, and waterproof treatment is performed between the cap and the valve stem.

[0011] Furthermore, for the anti-collision outdoor fire hydrant, waterproof treatment is performed between the hydrant body and the valve stem.

[0012] Furthermore, in the anti-collision outdoor fire hydrant, the base spring includes a base and a spring, one end of the spring abuts against the base, and the other end abuts against the sealing assembly.

[0013] Furthermore, in the anti-collision outdoor fire hydrant, the base spring also includes a column, and the column is fixed on the base and is used to sleeve the spring.

[0014] Furthermore, in the anti-collision outdoor fire hydrant, the base has a through hole, and its periphery is connected to the bottom end of the valve body.

[0015] The advantages and effects of the utility model are:

[0016] 1. The anti-collision outdoor fire hydrant provided by the utility model is suitable for installation in urban roads, industrial parks, dock stations, public building parking lots and other places. When the outdoor fire hydrant is hit by external force, even if some parts are broken or the hydrant body and valve body are damaged, it can still ensure that water does not leak and the valve is not opened, avoiding the problem of a large amount of fire water flowing out of the municipal pipe network due to damage to the exposed parts of the outdoor fire hydrant, eliminating hidden dangers, saving energy and reducing losses.

[0017] 2. The transmission rod of the anti-collision outdoor fire hydrant provided by the utility model is not fixedly connected to the valve body, and the transmission rod is not fixedly connected to the sealing assembly. When the valve body and the bolt body are impacted by external force and deformed, damaged, or broken, the impact force hits the transmission rod, and the transmission rod is separated from or deviates from the valve, and the sealing assembly can still be in good condition. The sealing performance of the outdoor fire hydrant will not be damaged due to external impact, nor will it be opened due to external impact, thus realizing the anti-collision function of the outdoor fire hydrant. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram showing the structure of the anti-collision outdoor fire hydrant provided by the utility model;

[0019] Figure 2 The utility model shows a schematic structural diagram of a transmission rod, a valve body and a sealing assembly of an anti-collision outdoor fire hydrant provided by the utility model.

[0020] Explanation of the accompanying drawings: 1-flange elbow, 2-base spring, 3-sealing piece, 4-sealing piece, 5-transmission rod, 6-valve body, 7-bolt body, 8-reset spring, 9-connecting sleeve, 10-nut, 11-valve stem, 12-cap. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the implementation of the utility model clearer, the technical scheme in the embodiment of the utility model is described in more detail below in conjunction with the drawings in the embodiment of the utility model. The described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the utility model, and should not be understood as limitations on the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model. The embodiments of the utility model are described in detail below in conjunction with the drawings:

[0022] Figure 1 The schematic diagram of the structure of the anti-collision outdoor fire hydrant provided by the utility model is shown. The anti-collision outdoor fire hydrant comprises a flange elbow 1, a valve body 6 and a bolt body 7 which are sealed and connected in sequence from bottom to top. The flange elbow 1 and the valve body 6, the valve body 6 and the bolt body 7 are sealed and connected through fasteners, and the three form a closed cavity. The water inlet end of the flange elbow 1 is connected to the municipal pipe network, the bolt body 7 is provided with a water outlet, and a water outlet joint can be provided for connecting with a fire hose.

[0023] like Figure 2As shown, a base spring 2 is provided at the lower part of the valve body 6, and the base spring 2 includes a base and a spring which may or may not be connected to the base and stands on the base at one end. In order to maintain the stability of the spring, a large-size spring is selected as far as possible without affecting its compression. The base spring 2 may also be provided with a column fixed on the base and used to sleeve the spring, and the column has an appropriate height which does not affect the compression of the spring. The base of the base spring 2 is fixedly connected to the bottom end of the valve body 6, and one end of the spring of the base spring 2 abuts against the base, and the other end abuts against the side wall protrusion of the lower part of the valve body 6 through a sealing component to block water inlet. The other end of the spring of the base spring 2 may or may not be connected to the sealing component. In order to ensure water inlet, the base of the base spring 2 may be a through-hole setting, with a through hole, and its periphery is connected to the bottom end of the valve body 6. At this time, if a column is provided, it is also through-hole.

[0024] In one embodiment, the side wall protrusion provided in the inner cavity of the valve body 6 is annular, which divides the inner cavity of the valve body 6 into two upper and lower chambers. The lower chamber is provided with a base spring 2 and a sealing assembly. The base spring 2 is in a compressed state, with one end abutting against the base and the other end abutting against the sealing assembly. The sealing assembly abuts against the annular side wall protrusion under the action of the spring to block the water entering from the flange elbow 1. At this time, the size of the sealing assembly is slightly larger than the inner diameter of the annular side wall protrusion.

[0025] In another embodiment, the base spring 2 does not have a base, but is a separate spring. A side wall protrusion is provided in the lower middle part of the inner cavity of the valve body 6 in the shape of an annular shape, which divides the inner cavity of the valve body 6 into two upper and lower chambers. A lower end side wall protrusion in the shape of an annular shape is also provided at the lower end of the inner cavity of the valve body 6, that is, a base replacing the base spring. A spring and a sealing assembly are provided in the lower chamber, and the spring is in a compressed state, with one end abutting against the lower end side wall protrusion and the other end abutting against the sealing assembly. The sealing assembly abuts against the side wall protrusion under the action of the spring, thereby blocking the water entering from the flange elbow 1. At this time, the diameter of the sealing assembly is slightly larger than the inner diameter of the side wall protrusion, and the diameter of the spring is slightly larger than the inner diameter of the lower end side wall protrusion.

[0026] In one embodiment, the sealing assembly includes a plugging member 3 and a sealing member 4, the plugging member 3 is connected to the spring of the base spring 2, and the sealing member 4 is disposed between the plugging member 3 and the side wall protrusion at the bottom of the valve body 6 for sealing. The diameter of the sealing assembly is larger than the inner diameter of the side wall protrusion and smaller than the inner diameter of the valve body 6. Preferably, the sealing member 4 is connected to the plugging member 3, and the connection method can be adhesive or groove fixing. The plugging member 3 includes a plugging portion for blocking water inflow, which has a diameter larger than the inner diameter of the side wall protrusion and smaller than the inner cavity of the valve body 6, a pillar extending downward from the plugging portion and having a diameter smaller than the plugging portion and can be used to sleeve the spring, and a guide column extending upward from the plugging portion and having a diameter smaller than the side wall protrusion. Among them, the spring can be sleeved on the pillar and stop at the bottom surface of the plugging portion at the same time, and the guide column has a guide groove slightly larger than the diameter of the transmission rod 5, and one end of the transmission rod 5 can extend into it.

[0027] A connecting sleeve 9, a transmission rod 5 and a valve stem 11 are arranged in the bolt body 7. The connecting sleeve 9 is arranged on the upper part of the bolt body 7, one end of the transmission rod 5 passes through the connecting sleeve 9 and is plugged into one end of the valve stem 11, the other end of the valve stem 11 extends out of the top of the bolt body 7, and one end of the transmission rod 5 extends into the valve body 6 and points to the sealing component. Waterproof treatment is performed between the bolt body 7 and the valve stem 11. A reset spring 8 is arranged in the connecting sleeve 9, and the reset spring 8 is sleeved on the transmission rod 5, one end of which abuts against the bottom end of the connecting sleeve 9, and the other end abuts against the outer wall protrusion of the transmission rod 5. The reset spring 8 always keeps a compressed state, so that the transmission rod 5 has an upward force. Under the action of the upward force, one end of the transmission rod 5 remains inserted into one end of the valve stem 11 and abuts therein. When the valve stem 11 moves up and down, the transmission rod 5 can move up and down with it, thereby pushing or disengaging from the sealing component to control the water inlet switch. Specifically, when the fire hydrant needs to be opened, the valve stem 11 moves downward, driving the transmission rod 5 to move downward, pushing the sealing assembly to control the water inlet to open; when the fire hydrant needs to be closed, the valve stem 11 moves upward and the transmission rod 5 moves upward under the action of the return spring 8, disengaging from the sealing assembly, and the sealing assembly stops at the side wall protrusion at the lower part of the valve body 6 under the action of the base spring 2 to control the water inlet to close.

[0028] The anti-collision outdoor fire hydrant also includes a cap 12 connected to the bolt body 7, and electrical components can be arranged between the bolt body 7 and the cap 12, which are waterproofed. In one embodiment, the cap 12 is buckled on the bolt body 7, and the cap 12 is removed when the fire hydrant needs to be opened. In another embodiment, the other end of the valve stem 11 simultaneously extends out of the top of the cap 12, and the cap 12 does not need to be removed when the fire hydrant needs to be opened. Waterproof treatment is performed between the cap 12 and the valve stem 11.

[0029] Furthermore, a nut 10 is fixedly provided at the top of the bolt body 7, and the valve stem 11 has an external thread, which is threadedly matched with the nut 10, sleeved on the nut 10, and extends out of the top of the bolt body 7. When the fire hydrant needs to be opened, the extended part of the valve stem 11 is rotated, and the external thread of the valve stem 11 and the nut 10 act to make it move downward, drive the transmission rod 5 to move downward, and push the sealing assembly to move downward and separate from the side wall protrusion at the bottom of the valve body 6, so as to open the water inlet; when the fire hydrant needs to be closed, the extended part of the valve stem 11 is rotated in the opposite direction, and the external thread of the valve stem 11 and the nut 10 act to move it upward, and the transmission rod 5 moves upward under the action of the reset spring 8, and the sealing assembly moves upward under the action of the base spring 2 until the transmission rod 5 is separated from the sealing assembly, and the sealing assembly stops at the side wall protrusion at the bottom of the valve body 6 under the action of the base spring and the water inlet, and the water inlet is closed.

[0030] The above embodiments are only used to illustrate the technical solution of the utility model, and are not used to limit the scope of implementation of the utility model. Any equivalent changes and modifications made within the protection scope of the utility model should be considered to fall within the protection scope of the utility model.

Claims

1. An anti-collision outdoor fire hydrant, characterized in that: The fire hydrant comprises a flange elbow (1), a valve body (6) and a plug body (7) which are sealed and connected in sequence from bottom to top. The water inlet end of the flange elbow (1) is connected to the municipal pipe network; a base spring (2) is arranged at the lower part of the valve body (6); the base of the base spring (2) is connected to the bottom end of the valve body (6); one end of the base spring (2) abuts against the base, and the other end abuts against the side wall protrusion at the lower part of the valve body (6) through a sealing component, so as to block the water inlet; a connecting sleeve (9) is arranged at the upper part of the plug body (7); one end of the transmission rod (5) passes through the connecting sleeve (9) and is connected to the lower part of the valve body (6); The sleeve (9) is inserted into one end of the valve stem (11), the other end of the valve stem (11) extends out of the top of the bolt body (7), and the other end of the transmission rod (5) extends into the valve body (6); a return spring (8) is arranged in the connecting sleeve (9), and the return spring (8) is sleeved on the transmission rod (5), one end of which abuts against the bottom end of the connecting sleeve (9), and the other end abuts against the outer wall protrusion of the transmission rod (5); when the valve stem (11) moves up and down, the transmission rod (5) moves up and down at the same time, thereby pushing or disengaging from the sealing component to control the water inlet switch.

2. The anti-collision outdoor fire hydrant according to claim 1, characterized in that: A nut (10) is fixedly arranged at the top end of the bolt body (7); the valve stem (11) has an external thread, which is threadably matched with the nut (10) and sleeved on the nut (10), and extends out of the top end of the bolt body (7).

3. The anti-collision outdoor fire hydrant according to claim 2, characterized in that: When it is necessary to open the fire hydrant, the protruding portion of the valve stem (11) is rotated, and the external thread of the valve stem (11) and the nut (10) act to move it downward, driving the transmission rod (5) to move downward, pushing the sealing assembly to move downward and disengage from the side wall protrusion at the lower part of the valve body (6), thereby opening the water inlet; when it is necessary to close the fire hydrant, the protruding portion of the valve stem (11) is rotated in the opposite direction, and the external thread of the valve stem (11) and the nut (10) act to move it upward, and the transmission rod (5) moves upward under the action of the reset spring (8), and at the same time, the sealing assembly moves upward under the action of the base spring (2) until the transmission rod (5) is disengaged from the sealing assembly, and the sealing assembly stops at the side wall protrusion at the lower part of the valve body (6), thereby closing the water inlet.

4. The anti-collision outdoor fire hydrant according to claim 1, characterized in that: The sealing assembly comprises a sealing member (3) and a sealing member (4); the sealing member (3) is connected to the spring of the base spring (2); and the sealing member (4) is arranged between the sealing member (3) and a side wall protrusion at the lower part of the valve body (6).

5. The anti-collision outdoor fire hydrant according to claim 1, characterized in that: The fire hydrant also includes a cover cap (12) connected to the hydrant body (7).

6. The anti-collision outdoor fire hydrant according to claim 5, characterized in that: The other end of the valve stem (11) simultaneously extends out of the top of the cover cap (12), and waterproof treatment is performed between the cover cap (12) and the valve stem (11).

7. The anti-collision outdoor fire hydrant according to claim 1, characterized in that: A waterproof treatment is performed between the bolt body (7) and the valve stem (11).

8. The anti-collision outdoor fire hydrant according to claim 1, characterized in that: The base spring (2) comprises a base and a spring, one end of the spring abuts against the base, and the other end abuts against the sealing component.

9. The anti-collision outdoor fire hydrant according to claim 8, characterized in that: The base spring (2) also includes a column, which is fixed on the base and is used to sleeve the spring.

10. The anti-collision outdoor fire hydrant according to claim 8, characterized in that: The base has a through hole, and its periphery is connected to the bottom end of the valve body (6).

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