A hydrant casting

By introducing reinforcing components and flange connection structures into the fire hydrant casting, the problem of easy valve wear was solved, and the stability and sealing performance of the valve were improved, ensuring that the fire hydrant can work normally under high-pressure water flow.

CN224325836UActive Publication Date: 2026-06-05QUANZHOU NANYANG CASTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QUANZHOU NANYANG CASTING CO LTD
Filing Date
2025-06-12
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The valves in existing fire hydrant castings are prone to wear under high-pressure water flow, which leads to a decrease in sealing performance, potentially causing water leakage and affecting fire water supply, thus delaying fire extinguishing.

Method used

It employs reinforced components and flange connection structures, including threaded sleeves, screws, adjusting rods, and knobs. Through the combination of threaded connections and flanges with gaskets, it enhances the sealing and stability of the valve and allows the external valve to continue providing control in the event of damage to the built-in valve.

Benefits of technology

It improves the sealing and stability of valves, reduces the occurrence of loosening over a long period of time, ensures that fire hydrants work normally under high-pressure water flow, prevents water leakage, and guarantees the reliability of fire water supply.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224325836U_ABST
    Figure CN224325836U_ABST
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Abstract

The utility model discloses a fire hydrant casting body casting, relates to fire hydrant casting body casting technical field, including fire hydrant main part, the top of fire hydrant main part is provided with built -in valve, the outer wall fixedly connected with passageway of fire hydrant main part, one end fixedly connected with valve assembly of passageway, the outer wall of valve assembly is provided with reinforcing component, the reinforcing component includes curb plate. This fire hydrant casting body casting installs through the butt joint of external valve and fire hydrant main part, and can make first flange plate on external valve can be attached with second flange plate, and can rely on the bolt of setting can install and fix first flange plate with second flange plate, rely on the sealing washer of setting simultaneously, can further improve the connection sealing property between first flange plate and second flange plate, in addition through the control of built -in valve, plus the control of external valve, can reach the protection effect when relying on external valve when built -in valve is damaged.
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Description

Technical Field

[0001] This utility model relates to the technical field of fire hydrant castings, specifically a fire hydrant casting. Background Technology

[0002] Fire hydrant castings are crucial components in fire protection systems. They are typically made from high-quality metals such as cast iron and cast steel. Visually, they are robust, rationally designed, and capable of withstanding significant pressure and impact. The casting surface undergoes special treatment, providing excellent corrosion resistance and enabling long-term use in various harsh environments. They effectively resist the erosion of rainwater, humid air, and chemicals. Functionally, they form the main framework of the fire hydrant, providing stable support for the internal water flow channels and key components. Their smooth internal channels ensure the rapid and unobstructed delivery of firefighting water to the fire hoses during a fire, providing an ample water supply for firefighting operations. Furthermore, fire hydrant castings are manufactured in strict accordance with relevant fire protection standards, ensuring reliable quality. They undergo rigorous quality testing to guarantee their crucial role in emergencies, protecting people's lives and property.

[0003] In existing fire hydrant castings, the internal water flow is controlled by a valve during normal use. Because the valve alone is responsible for water control, all water pressure acts directly on it. This is akin to a thin rope bearing the entire weight of a heavy object; the pressure is concentrated and immense. Under this high pressure for extended periods, the valve is susceptible to impact and wear from the water flow, leading to decreased sealing performance and leaks. Valve failure not only wastes water resources but can also disrupt the fire hydrant's water supply during a fire, delaying firefighting efforts. Therefore, we need a fire hydrant casting. Utility Model Content

[0004] The purpose of this utility model is to provide a fire hydrant casting to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire hydrant casting, comprising a fire hydrant body, a built-in valve at the top of the fire hydrant body, a channel fixedly connected to the outer wall of the fire hydrant body, a valve assembly fixedly connected to one end of the channel, and a reinforcing component provided on the outer wall of the valve assembly; the reinforcing component includes a side plate, the side plate being fixed to the outer wall of the external valve, a threaded sleeve fixedly connected to one side of the side plate, a screw threadedly connected to the inside of the threaded sleeve, an adjusting rod fixedly connected to one end of the screw, and a knob fixedly connected to the outer wall of the adjusting rod.

[0006] Preferably, the side plate forms a threaded adjustment structure with the screw via a threaded sleeve, and the inner diameter of the threaded sleeve matches the outer diameter of the screw, and the inner wall of the threaded sleeve fits snugly against the outer wall of the screw.

[0007] Preferably, the screws form a rotary adjustment structure through the adjusting rod and the knob, and there are two screws, which are symmetrically arranged about the vertical line of the adjusting rod as the axis of symmetry.

[0008] Preferably, the knob is fixed in the middle part of the adjusting rod.

[0009] Preferably, the valve assembly includes an external valve, one end of which is fixedly connected to a first flange, and one side of the first flange is fixedly connected to a second flange by bolts, with a sealing gasket provided between the first flange and the second flange.

[0010] Preferably, the external valve is connected to the second flange via a first flange, and the first flange and the second flange are fixedly connected by bolts.

[0011] Preferably, the first flange and the second flange form a sealing structure through a sealing gasket, and the outer wall of the sealing gasket is fitted to the connection between the first flange and the second flange.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this fire hydrant casting...

[0013] (1) By connecting the external valve to the fire hydrant body, the first flange on the external valve can be fitted with the second flange, and the first flange and the second flange can be installed and fixed by the bolts. At the same time, the sealing gasket can further improve the connection sealing between the first flange and the second flange. In addition, by controlling the built-in valve and the external valve, the external valve can also achieve the same protection effect when the built-in valve is damaged.

[0014] (2) By rotating the knob, the knob can drive the adjusting rod to rotate, which in turn can drive the screw to rotate, which can then rotate inside the threaded sleeve. This allows the threaded sleeves on both sides to move along the outer wall of the screw, thus achieving the effect of reinforcing the external valve and reducing the occurrence of loose bolt connections over a long period of time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of the adjusting rod and screw structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the first flange and bolt structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the second flange and sealing gasket structure of this utility model.

[0019] In the diagram: 1. Fire hydrant body; 2. Built-in valve; 3. Channel; 4. Reinforcing components; 401. Side plate; 402. Threaded sleeve; 403. Screw; 404. Adjusting rod; 405. Knob; 5. Valve assembly; 501. External valve; 502. First flange; 503. Bolt; 504. Second flange; 505. Sealing gasket. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model embodiment provides a fire hydrant casting, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the device includes a fire hydrant body 1, with a built-in valve 2 at the top. A channel 3 is fixedly connected to the outer wall of the fire hydrant body 1, and a valve assembly 5 is fixedly connected to one end of the channel 3. A reinforcing component 4 is provided on the outer wall of the valve assembly 5. The reinforcing component 4 includes a side plate 401, which is fixed to the outer wall of the external valve 501. A threaded sleeve 402 is fixedly connected to one side of the side plate 401, and a screw 403 is threadedly connected to the inside of the threaded sleeve 402. The side plate 401 is connected via... The threaded sleeve 402 and the screw 403 form a threaded adjustment structure. The inner diameter of the threaded sleeve 402 matches the outer diameter of the screw 403, and the inner wall of the threaded sleeve 402 fits snugly against the outer wall of the screw 403, enhancing the connection between the side plate 401 and the threaded sleeve 402. This allows the screw 403 to rotate within the threaded sleeve 402. One end of the screw 403 is fixedly connected to an adjusting rod 404, and a knob 405 is fixedly connected to the outer wall of the adjusting rod 404. 403 forms a rotary adjustment structure through the adjusting rod 404 and the knob 405. There are two screws 403, symmetrically arranged about the perpendicular bisector of the adjusting rod 404, enhancing the connection between the adjusting rod 404 and the screws 403. This allows the knob 405 to rotate, driving the screws 403 at both ends of the adjusting rod 404 to rotate. The knob 405 is fixed in the middle of the adjusting rod 404, simplifying its placement and further facilitating adjustment. The knob 405 drives the adjusting rod 404 to rotate. Rotating the knob 405 causes the adjusting rod 404 to rotate, which in turn causes the screw 403 to rotate. This allows the screw 403 to rotate within the threaded sleeve 402, which in turn allows the threaded sleeves 402 on both sides to move along the outer wall of the screw 403. This achieves the effect of reinforcing the external valve 501 and reduces the occurrence of loosening of the bolt 503 connection over time.

[0022] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, valve assembly 5 includes an external valve 501. One end of the external valve 501 is fixedly connected to a first flange 502. One side of the first flange 502 is fixedly connected to a second flange 504 via bolts 503. The external valve 501 forms a flange connection structure through the first flange 502 and the second flange 504, and the first flange 502 and the second flange 504 are fixedly connected by bolts 503, which enhances the connection effect between the external valve 501 and the first flange 502. The connection between the first flange 502 and the second flange 504 can be sealed by the cooperation of the bolts 503 and nuts. A sealing gasket 505 is provided between the first flange 502 and the second flange 504, forming a sealing structure. The outer wall of the sealing gasket 505 is flush with the ground surface. The first flange 502 and the second flange 504 are fitted together, which strengthens the connection between them. The first flange 502 and the second flange 504 are sealed by the gasket 505. The external valve 501 is connected to the fire hydrant body 1, and the first flange 502 on the external valve 501 can fit snugly against the second flange 504. The bolts 503 can be used to install and fix the first flange 502 and the second flange 504. The gasket 505 further improves the sealing performance between the first flange 502 and the second flange 504. Furthermore, the combined control of the internal valve 2 and the external valve 501 ensures that the external valve 501 provides protection even if the internal valve 2 is damaged.

[0023] Working principle: In use, the external valve 501 can be connected to the fire hydrant body 1 for installation, allowing the first flange 502 on the external valve 501 to fit against the second flange 504. The bolts 503 can be used to fix the first flange 502 and the second flange 504 in place. The sealing gasket 505 further improves the sealing performance between the first flange 502 and the second flange 504. Furthermore, the internal valve 2, along with the external valve 501... The control mechanism allows for protection by relying on the external valve 501 even if the built-in valve 2 is damaged. In addition, rotating the knob 405 will cause the adjusting rod 404 to rotate, which in turn will cause the screw 403 to rotate. The screw 403 will then rotate within the threaded sleeve 402, allowing the threaded sleeves 402 on both sides to move along the outer wall of the screw 403. This will reinforce the external valve 501 and reduce the likelihood of the bolt 503 loosening over time.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fire hydrant casting, comprising a fire hydrant body (1), characterized in that: The fire hydrant body (1) is provided with an internal valve (2) at the top, and a channel (3) is fixedly connected to the outer wall of the fire hydrant body (1). A valve assembly (5) is fixedly connected to one end of the channel (3), and a reinforcing component (4) is provided on the outer wall of the valve assembly (5). The reinforcement component (4) includes a side plate (401), which is fixed to the outer wall of the external valve (501). A threaded sleeve (402) is fixedly connected to one side of the side plate (401). A screw (403) is threadedly connected to the inside of the threaded sleeve (402). An adjusting rod (404) is fixedly connected to one end of the screw (403). A knob (405) is fixedly connected to the outer wall of the adjusting rod (404).

2. The fire hydrant casting according to claim 1, characterized in that: The side plate (401) forms a threaded adjustment structure with the screw (403) through the threaded sleeve (402), and the inner diameter of the threaded sleeve (402) matches the outer diameter of the screw (403), and the inner wall of the threaded sleeve (402) is fitted to the outer wall of the screw (403).

3. The fire hydrant casting according to claim 1, characterized in that: The screw (403) forms a rotary adjustment structure with the adjustment rod (404) and the knob (405), and there are two screws (403), and the two screws (403) are symmetrically arranged with the vertical line of the adjustment rod (404) as the axis of symmetry.

4. A fire hydrant casting according to claim 1, characterized in that: The knob (405) is fixed to the middle part of the adjusting rod (404).

5. A fire hydrant casting according to claim 1, characterized in that: The valve assembly (5) includes an external valve (501), one end of which is fixedly connected to a first flange (502), and one side of the first flange (502) is fixedly connected to a second flange (504) by bolts (503). A sealing gasket (505) is provided between the first flange (502) and the second flange (504).

6. A fire hydrant casting according to claim 5, characterized in that: The external valve (501) is connected to the second flange (504) by the first flange (502) and the second flange (504), and the first flange (502) and the second flange (504) are fixedly connected by bolts (503).

7. A fire hydrant casting according to claim 5, characterized in that: The first flange (502) and the second flange (504) form a sealing structure through a gasket (505), and the outer wall of the gasket (505) is fitted to the connection between the first flange (502) and the second flange (504).