Intelligent fire hydrant

Abstract

The utility model relates to a kind of intelligent fire hydrant.The technical problem to be solved by the utility model is to provide a fire hydrant.The utility model intelligent fire hydrant uses the technical scheme: including fire hydrant plug body, fire hydrant plug seat, water inlet bend seat, valve stem assembly, first sealing gasket and close ring, the valve stem assembly includes main valve stem, valve plug, close plate, pre-tightening spring and first sealing plate, locking screw, the fire hydrant plug seat includes plug seat upper portion and plug seat lower portion, plug seat lower portion is equipped with plug seat lower water hole, plug seat upper portion is equipped with plug seat upper water channel.The utility model has the advantages that: between first sealing gasket and first sealing plate, between close ring and close plate, the double sealing of fire hydrant internal water outlet passage is realized, water flow pressure is dispersed, single-point wear risk is reduced, service life is prolonged, sealing effect is good;Through the pre-tightening spring effect, the wear between first sealing gasket and first sealing plate can be automatically compensated, and sealing pressure is maintained stable.

Description

Technical Field

[0001] This utility model relates to a smart fire hydrant. Background Technology

[0002] Fire hydrants are core equipment in fire protection systems used to provide water for firefighting. The water outlet of a fire hydrant is typically sealed with a single-layer sealing plate, and the seal is opened and closed by rotating a valve stem assembly. Frequent use, water flow impact, and excessive tightening can accelerate wear between the sealing plate and the sealing ring, leading to a shorter lifespan for both and potential problems such as incomplete closure and leakage inside the hydrant. This results in water loss from the municipal water supply network or fire water tank, and long-term use poses a risk to the internal sealing of the fire hydrant. Therefore, improvements and optimizations are needed to address these issues. Utility Model Content

[0003] To address the aforementioned problems, the technical issue this invention aims to resolve is to provide a smart fire hydrant.

[0004] The technical solution adopted by this utility model of intelligent fire hydrant is characterized by comprising a fire hydrant body, a fire hydrant seat, a water inlet bend, a valve stem assembly, a first sealing gasket, and a sealing ring. The valve stem assembly includes a main valve stem, a valve plug fixed to the lower end of the main valve stem, a sealing plate arranged sequentially from top to bottom at the lower end of the valve plug, a pre-tensioning spring, a first sealing plate, and a locking screw. The fire hydrant seat includes an upper part that connects to the fire hydrant body and a lower part that connects to the water inlet bend. The lower part of the seat has a lower water flow hole, and the upper part has an upper water flow groove communicating with the lower water flow hole. The inner diameter of the upper water flow groove is larger than that of the lower water flow hole. The inner diameter of the sealing ring is placed at the bottom of the water channel on the valve seat. The sealing plate and the sealing ring form a conical seal. The inner wall of the water channel hole of the valve seat is provided with a lower positioning groove for the installation and positioning of the first sealing gasket. The outer diameter of the first sealing plate is smaller than the inner diameter of the lower positioning groove of the valve seat. The first sealing gasket and the first sealing plate form a seal. The sealing plate is provided with a threaded hole in the middle and a through hole in the middle. The locking screw passes through the through hole of the sealing plate and the preload spring and is then connected to the threaded hole of the sealing plate and the valve plug in sequence. The lower end of the preload spring abuts against the first sealing plate and its upper end abuts against the sealing plate.

[0005] The first sealing plate has sealing plate guide protrusions at both ends, and the first sealing gasket includes a sealing gasket body and a sealing gasket receiving protrusion located in the middle of the outer wall of the sealing gasket body. A sealing gasket upper contact groove is formed between the upper end of the sealing gasket body and the sealing gasket receiving protrusion for docking with the sealing plate guide protrusion.

[0006] The outer wall of the sealing gasket receiving boss is provided with a sealing gasket limiting protrusion, and the side wall of the lower positioning groove of the bolt seat is provided with a lower positioning groove of the bolt seat corresponding to the sealing gasket limiting protrusion.

[0007] The sealing ring is provided with a sealing ring positioning boss and a sealing ring limiting groove. The bottom of the water channel on the bolster seat is provided with an upper positioning groove for inserting the sealing ring positioning boss and an upper inner stop edge of the bolster seat that is opposite to the sealing ring limiting groove. The sealing ring positioning boss and the upper inner stop edge of the bolster seat are connected by screws.

[0008] It also includes a lower support plate located at the lower end of the first sealing plate. The outer diameter of the lower support plate is smaller than the inner diameter of the water flow hole at the lower end of the plug seat. The locking screw passes through the lower support plate, the through hole of the sealing plate, and the pre-tightening spring, and is then sequentially threaded to the threaded hole of the sealing plate and the valve plug.

[0009] The lower end of the sealing plate is provided with a spring limiting groove for limiting the pre-tightening spring.

[0010] The advantages of this intelligent fire hydrant are: the double sealing of the internal water outlet channel of the fire hydrant is achieved between the first sealing gasket and the first sealing plate, and between the sealing ring and the sealing plate, which disperses the water flow pressure, reduces the risk of single-point wear, extends the service life, and has a good sealing effect; the wear between the first sealing gasket and the first sealing plate can be automatically compensated by the pre-tightening spring, maintaining stable sealing pressure and reducing maintenance frequency. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a schematic diagram of the internal structure of the intelligent fire hydrant of this utility model;

[0013] Figure 2 yes Figure 1 Enlarged image;

[0014] Figure 3 This is a schematic diagram of the connection between the sealing ring and the sealing plate of this utility model;

[0015] Figure 4 This is a schematic diagram of the connection between the first sealing gasket and the first sealing plate of this utility model;

[0016] Figure 5 This is a half-sectional view of the fire hydrant seat of this utility model. Detailed Implementation

[0017] like Figure 1-5As shown, the intelligent fire hydrant of this utility model includes a fire hydrant body 1, a fire hydrant seat 2, a water inlet bend 3, a valve stem assembly 4, a first sealing gasket 5, and a sealing ring 6. The valve stem assembly 4 includes a main valve stem 8, a valve plug 9 fixed to the lower end of the main valve stem 8, a sealing plate 10 arranged sequentially from top to bottom at the lower end of the valve plug 9, a pre-tensioning spring 11, a first sealing plate 12, and a locking screw 14. The fire hydrant seat 2 includes an upper seat 20 that connects to the fire hydrant body 1 and The lower part 21 of the sprue seat is connected to the water inlet bend 3. The lower part 21 has a lower water outlet hole 23. The upper part 20 of the sprue seat has an upper water outlet groove 22 communicating with the lower water outlet hole 23. The inner diameter of the upper water outlet groove 22 is larger than the inner diameter of the lower water outlet hole 23. The sealing ring 6 is placed at the bottom of the upper water outlet groove 22. The sealing plate 10 and the sealing ring 6 form a conical seal. The inner wall of the lower water outlet hole 23 is provided with a seal for the first sealing... The gasket 5 is installed in the lower positioning groove 24 of the hydrant seat. The outer diameter of the first sealing plate 12 is smaller than the inner diameter of the lower positioning groove 24 of the hydrant seat. The first sealing gasket 5 and the first sealing plate 12 form a seal. The sealing plate 10 has a sealing plate threaded hole 16 in the middle and a sealing plate through hole 17 in the middle of the first sealing plate 12. The locking screw 14 passes through the sealing plate through hole 17 and the pre-tightening spring 11 and is then threadedly connected to the sealing plate threaded hole 16 and the valve plug 9 in sequence. The lower end of the pre-tightening spring 11 abuts against the first sealing plate 12 and its upper end abuts against the sealing plate 10. The first sealing gasket 5 and the first sealing plate 12, and the sealing ring 6 and the sealing plate 10 achieve a double seal of the internal water outlet channel of the fire hydrant, which disperses the water flow pressure, reduces the risk of single-point wear, extends the service life, and has a good sealing effect. The pre-tightening spring 11 can automatically compensate for the wear between the first sealing gasket 5 and the first sealing plate 12, maintain stable sealing pressure, and reduce maintenance frequency.

[0018] The first sealing plate 12 has sealing plate guide protrusions 30 at both ends. The first sealing gasket 5 includes a sealing gasket body 18 and a sealing gasket receiving protrusion 19 located in the middle of the outer wall of the sealing gasket body 18. A sealing gasket upper contact groove 31 is formed between the upper end of the sealing gasket body 18 and the sealing gasket receiving protrusion 19 for docking with the sealing plate guide protrusions 30, which makes the docking more accurate and ensures stable and reliable sealing.

[0019] The outer wall of the sealing gasket receiving boss 19 is provided with a sealing gasket limiting protrusion 32, and the side wall of the lower positioning groove 24 of the bolt seat is provided with a bolt seat lower limiting groove 26 corresponding to the sealing gasket limiting protrusion 32. The positioning is accurate, preventing the first sealing gasket 5 from being displaced due to impact, and improving the sealing effect.

[0020] The sealing ring 6 is provided with a sealing ring positioning boss 33 and a sealing ring limiting groove 34. The bottom of the water channel 22 on the bolster seat is provided with an upper positioning groove 27 for inserting the sealing ring positioning boss 33 and an upper inner retaining edge 28 of the bolster seat that is opposite to the sealing ring limiting groove 34. The sealing ring positioning boss 33 and the upper inner retaining edge 28 of the bolster seat are connected by screws, which are firmly and reliably connected and easy to install and disassemble.

[0021] It also includes a lower support plate 13 located at the lower end of the first sealing plate 12. The outer diameter of the lower support plate 13 is smaller than the inner diameter of the lower water flow hole 23 of the plug seat. The locking screw 14 passes through the lower support plate 13, the sealing plate through hole 17, and the preload spring 11, and is then connected to the threaded hole 16 of the sealing plate and the valve plug 9 in sequence to improve the lower support and ensure the accuracy of the operation.

[0022] The lower end of the sealing plate 10 is provided with a spring limiting groove 36 for limiting the pre-tension spring 11, which effectively prevents the pre-tension spring 11 from falling off or shifting.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A smart fire hydrant, characterized in that: The fire hydrant includes a hydrant body (1), a hydrant seat (2), an inlet bend (3), a valve stem assembly (4), a first sealing gasket (5), and a sealing ring (6). The valve stem assembly (4) includes a main valve stem (8), a valve plug (9) fixed to the lower end of the main valve stem (8), a sealing plate (10) arranged sequentially from top to bottom at the lower end of the valve plug (9), a preload spring (11), a first sealing plate (12), and a locking screw (14). The seat (2) includes an upper part (20) that connects to the fire hydrant body (1) and a lower part (21) that connects to the water inlet bend (3). The lower part (21) is provided with a lower water outlet hole (23), and the upper part (20) is provided with an upper water outlet groove (22) that communicates with the lower water outlet hole (23). The inner diameter of the upper water outlet groove (22) is larger than the inner diameter of the lower water outlet hole (23). The sealing ring (6) The water channel (22) on the sluice seat is placed at the bottom. The sealing plate (10) and the sealing ring (6) form a cone seal. The inner wall of the water channel (23) of the sluice seat is provided with a lower positioning groove (24) for the installation and positioning of the first sealing gasket (5). The outer diameter of the first sealing plate (12) is smaller than the inner diameter of the lower positioning groove (24) of the sluice seat. The first sealing gasket (5) and the first sealing plate (12) form a seal. The sealing plate (10) is provided with a threaded hole (16) in the middle. The first sealing plate (12) is provided with a through hole (17) in the middle. The locking screw (14) passes through the through hole (17) of the sealing plate and the preload spring (11) and is connected to the threaded hole (16) of the sealing plate and the valve plug (9) in sequence. The lower end of the preload spring (11) abuts against the first sealing plate (12) and its upper end abuts against the sealing plate (10).

2. The smart hydrant of claim 1, wherein: The first sealing plate (12) has sealing plate guide protrusions (30) at both ends. The first sealing gasket (5) includes a sealing gasket body (18) and a sealing gasket receiving protrusion (19) located in the middle of the outer wall of the sealing gasket body (18). A sealing gasket upper contact groove (31) is formed between the upper end of the sealing gasket body (18) and the sealing gasket receiving protrusion (19) for docking with the sealing plate guide protrusion (30).

3. The smart hydrant of claim 2, wherein: The outer wall of the sealing gasket receiving boss (19) is provided with a sealing gasket limiting protrusion (32), and the side wall of the lower positioning groove (24) of the bolt seat is provided with a bolt seat lower limiting groove (26) corresponding to the sealing gasket limiting protrusion (32).

4. The smart hydrant of claim 1, wherein: The sealing ring (6) is provided with a sealing ring positioning boss (33) and a sealing ring limiting groove (34). The bottom of the water channel (22) on the bolster seat is provided with an upper positioning groove (27) for inserting the sealing ring positioning boss (33) and an upper inner stop edge (28) of the bolster seat that is opposite to the sealing ring limiting groove (34). The sealing ring positioning boss (33) and the upper inner stop edge (28) of the bolster seat are connected by screws.

5. The smart hydrant of claim 1, wherein: It also includes a lower support plate (13) located at the lower end of the first sealing plate (12). The outer diameter of the lower support plate (13) is smaller than the inner diameter of the lower water flow hole (23) of the plug seat. The locking screw (14) passes through the lower support plate (13), the sealing plate through hole (17), and the pre-tightening spring (11) and is then threadedly connected to the threaded hole (16) of the sealing plate and the valve plug (9) in sequence.

6. The intelligent fire hydrant according to claim 1, characterized in that: The lower end of the sealing plate (10) is provided with a spring limiting groove (36) for limiting the pre-tightening spring (11).

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