Anti-dripping fire hydrant

Abstract

The anti-leakage fire hydrant is simple in structure and capable of preventing the fire hydrant from leaking water and comprises a fire hydrant body, a water outlet and a sealing ball, the water outlet and the sealing ball are arranged on the fire hydrant body, a valve seat is arranged in the fire hydrant body, a water outlet channel is arranged on the valve seat, a valve rod is arranged on the fire hydrant body, a sealing clack is arranged on the valve rod, and the sealing ball is arranged on the sealing clack. The sealing clack is sealed on the valve seat to seal the water outlet channel, a first water passing seat capable of enabling water flow to pass through is arranged in the fire hydrant body, the water passing seat is located below the valve seat, a spring is connected to the sealing ball, the other end of the spring is connected with the first water passing seat, and the sealing ball is sealed on the water outlet channel to seal the water outlet channel. The fire hydrant body is provided with a jacking device used for jacking the sealing ball open.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting, in particular to an anti-drip fire hydrant. Background Art

[0002] Fire hydrants, also known as fire hydrants, can be divided into indoor fire hydrants and outdoor fire hydrants according to the different places of use. Outdoor fire hydrants can be further divided into ground fire hydrants and direct-buried telescopic fire hydrants according to their different structures. Ground fire hydrants can collect water on the ground and are easy to operate.

[0003] When the fire hydrant body is hit by a vehicle in a traffic accident, it may cause the fire hydrant to break or deform, and then the valve stem may break or deform, thereby automatically opening the valve seat, causing a large amount of water to be discharged and unable to prevent leakage, resulting in a large amount of water waste.

[0004] In order to solve this problem, the present utility model is produced. Utility Model Content

[0005] Therefore, in view of the above problems, the utility model proposes an anti-drip fire hydrant with a simple structure and capable of preventing water leakage from the fire hydrant.

[0006] In order to solve the above technical problems, the solution adopted by the utility model is: a drip-proof fire hydrant, comprising a fire hydrant body, a water outlet arranged on the fire hydrant body, and a sealing ball, wherein a valve seat is arranged in the fire hydrant body, a water outlet channel is opened on the valve seat, a valve stem is arranged on the fire hydrant body, a sealing flap is provided on the valve seat to seal the water outlet channel, a first water flow seat that allows water to flow through is arranged in the fire hydrant body, the water flow seat is located below the valve seat, a spring is connected to the sealing ball, the other end of the spring is connected to the first water flow seat, the sealing ball is sealed on the water outlet channel to seal the water outlet channel, and a pushing device for pushing open the sealing ball is provided on the fire hydrant body.

[0007] A further improvement is that: the opening device includes a push rod, the valve seat is located in the water outlet channel and is provided with a second water flow seat for water to flow through, the second water flow seat is provided with a sliding channel, the push rod is slidably arranged in the sliding channel, and the fire hydrant body is provided with a sliding device for driving the push rod to slide so that the push rod and the sealing ball resist each other to push the sealing ball away.

[0008] A further improvement is that: the sliding device includes a screw rod, which is rotatably arranged on the second water overflow seat, one end of the screw rod is passed through the sliding channel, and the other end passes through the second water overflow seat upward, the push rod is sleeved on the screw rod and is threadedly transmitted with the screw rod, the fire hydrant body is provided with a rotating device for driving the screw rod to rotate, and the second water overflow seat is provided with a limit device for limiting the rotation of the push rod.

[0009] A further improvement is that the rotating device includes a worm wheel and a worm, the worm wheel is sleeved on the screw, the worm is rotatably penetrated on the fire hydrant body, one end of the worm is meshed with the worm wheel for transmission, and the other end of the worm passes through the outside of the fire hydrant body.

[0010] A further improvement is that: the limiting device is: the push rod and the sliding channel are arranged in a square shape.

[0011] A further improvement is that a rotating handle is provided on the worm, and the rotating handle is located outside the fire hydrant body.

[0012] A further improvement is that: a spherical groove is formed at the outlet of the water outlet to match the shape of the sealing ball, and the sealing ball is arranged in the spherical groove.

[0013] By adopting the above technical solution, the beneficial effects of the utility model are:

[0014] The structure is simple, the sealing effect is good, and the fire hydrant can be prevented from leaking and dripping. When the upper end of the fire hydrant is hit and broken or deformed, the valve stem will break or deform, and the upper end of the water outlet channel will be opened. However, the lower part of the water outlet channel is sealed by a sealing ball, thereby preventing water from flowing out of the water outlet channel and causing leakage, which is conducive to ensuring the sealing of the fire hydrant. Moreover, when the fire hydrant is not in use, both ends of the water outlet channel are sealed, which can more effectively ensure the sealing and prevent the fire hydrant from dripping, which is conducive to the long-term use of the fire hydrant. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of a drip-proof fire hydrant according to an embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of the enlarged structure of A in the embodiment of the present utility model.

[0017] Figure 3 It is a schematic structural diagram of the first water drain seat and the second water drain seat in an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0019] refer to Figure 1-3, the utility model embodiment discloses: A drip-proof fire hydrant comprises a fire hydrant body 1 and a water outlet arranged on the fire hydrant body 1, wherein a valve seat 2, a sealing ball 6 and a push rod 12 are arranged in the fire hydrant body 1, a water outlet channel is opened on the valve seat 2, a valve stem 4 is arranged on the fire hydrant body 1, a sealing flap 3 is arranged on the valve stem 4, the sealing flap 3 is sealed on the valve seat 2 to seal the water outlet channel, a first water-passing seat 5 through which water can flow is arranged in the fire hydrant body 1, the water-passing seat is located below the valve seat 2, a spring 7 is connected to the sealing ball 6, the other end of the spring 7 is connected to the first water-passing seat 5, the sealing ball 6 is sealed on the water outlet channel to seal the water outlet channel, the valve seat 2 is located in the water outlet channel and is provided with a second water-passing seat 10 through which water can flow, a sliding channel is opened on the second water-passing seat 10, the push rod 12 is slidably arranged in the sliding channel, and a sliding device for driving the push rod 12 to slide so that the push rod 12 and the sealing ball 6 resist each other and push the sealing ball 6 away is provided on the fire hydrant body 1.

[0020] Specifically, the sliding device includes a screw 11, a worm wheel 9 and a worm 8. The screw 11 is rotatably arranged on the second water-passing seat 10. One end of the screw 11 is penetrated in the sliding channel, and the other end penetrates upward from the second water-passing seat 10. The push rod 12 is sleeved on the screw 11 and is threadedly transmitted with the screw 11. The push rod 12 and the sliding channel are arranged in a square shape. The worm wheel 9 is sleeved on the screw 11. The worm 8 is rotatably penetrated on the fire hydrant body 1. One end of the worm 8 is meshed with the worm wheel 9 for transmission, and the other end of the worm 8 penetrates the outside of the fire hydrant body 1.

[0021] In order to facilitate the rotation of the worm 8 , a rotation handle is provided on the worm 8 , and the rotation handle is located outside the fire hydrant body 1 .

[0022] In order to improve the sealing performance, a spherical groove is formed at the outlet of the water outlet to match the shape of the sealing ball 6, and the sealing ball 6 is arranged in the spherical groove.

[0023] Working principle:

[0024] When the fire hydrant is in use, the sealing flap 3 seals the upper end of the water outlet channel, and the sealing ball 6 seals the lower end of the water outlet channel. When the upper end of the fire hydrant is hit and broken or deformed, the valve stem 4 is broken or deformed, and the upper end of the water outlet channel is opened. However, since the lower end of the water outlet channel is sealed by the sealing ball 6, water is prevented from flowing out of the water outlet channel, causing leakage and dripping, which is conducive to ensuring the sealing of the fire hydrant. When the fire hydrant is to be opened, the worm 8 is first rotated, and the worm 8 drives the worm wheel 9 to rotate, and the worm wheel 9 drives the screw 11 to rotate. The screw 11 and the push rod 12 are threadedly transmitted, so that the push rod 12 slides downward, and the push rod 12 resists the sealing ball 6, thereby pushing the sealing ball 6 downward, and compressing the spring 7, so as to open the lower end of the water outlet channel, and then the valve stem 4 is rotated, and the valve stem 4 drives the sealing flap 3 to open the upper end of the water outlet channel, so that the water flows out of the water outlet channel and then flows out from the water outlet.

[0025] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A drip-proof fire hydrant, comprising a fire hydrant body, a water outlet arranged on the fire hydrant body, a valve seat arranged in the fire hydrant body, a water outlet channel opened on the valve seat, a valve stem arranged on the fire hydrant body, a sealing flap arranged on the valve stem, the sealing flap seals on the valve seat to seal the water outlet channel, characterized in that: It also includes a sealing ball. A first water flow seat that allows water to flow through is provided in the fire hydrant body. The water flow seat is located below the valve seat. A spring is connected to the sealing ball. The other end of the spring is connected to the first water flow seat. The sealing ball seals on the water outlet channel to close the water outlet channel. An opening device for opening the sealing ball is provided on the fire hydrant body.

2. The anti-drip fire hydrant according to claim 1, characterized in that: The push-opening device includes a push rod, the valve seat is located in the water outlet channel and is provided with a second water flow seat for water to flow through, the second water flow seat is provided with a sliding channel, the push rod is slidably arranged in the sliding channel, and the fire hydrant body is provided with a sliding device for driving the push rod to slide so that the push rod and the sealing ball resist each other to push the sealing ball open.

3. The anti-drip fire hydrant according to claim 2, characterized in that: The sliding device includes a screw rod, which is rotatably arranged on the second water overflow seat. One end of the screw rod is inserted into the sliding channel, and the other end is upwardly inserted out of the second water overflow seat. The push rod is sleeved on the screw rod and is threadedly transmitted with the screw rod. A rotating device for driving the screw rod to rotate is provided on the fire hydrant body, and a limiting device for limiting the rotation of the push rod is provided on the second water overflow seat.

4. The anti-drip fire hydrant according to claim 3, characterized in that: The rotating device includes a worm wheel and a worm, the worm wheel is sleeved on the screw, the worm is rotatably penetrated on the fire hydrant body, one end of the worm is meshed with the worm wheel for transmission, and the other end of the worm is penetrated outside the fire hydrant body.

5. The anti-drip fire hydrant according to claim 3, characterized in that: The limiting device is as follows: the push rod and the sliding channel are arranged in a square shape.

6. The anti-drip fire hydrant according to claim 4, characterized in that: The worm is provided with a rotating handle, and the rotating handle is located outside the fire hydrant body.

7. The anti-drip fire hydrant according to claim 1, characterized in that: The water outlet channel opening is provided with a spherical groove matching the shape of the sealing ball, and the sealing ball is arranged in the spherical groove.

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