Anti-collision fire hydrant

Abstract

The utility model relates to the technical field of fire hydrants, and discloses an anti-collision fire hydrant, which comprises a flange elbow, a valve body and a hydrant body, the flange elbow is fixedly connected with the valve body through a plurality of bolts and nuts, a flange elbow gasket is arranged between the flange elbow and the valve body, and the valve body is fixedly connected with the hydrant body. The top of the valve body and the bottom of the hydrant body are fixed through a plurality of connecting bolts, a valve body gasket is arranged between the valve body and the hydrant body, a water outlet assembly is arranged on the hydrant body, and a control assembly used for controlling water flow is arranged in the valve body. When the fire hydrant provided by the utility model is applied, the hydrant body and the valve body can be separated in time when being impacted, so that the whole fire hydrant is prevented from toppling or seriously deforming, the risk of damage to the whole structure is reduced, the maintenance time is shortened, the material cost is reduced, the water supply interruption caused by maintenance is reduced, and the emergency response efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire hydrant technical field especially relates to a kind of anti-collision fire hydrant. BACKGROUND

[0002] Fire hydrant is a kind of fixed fire-fighting equipment installed on public water supply network, mainly used to provide fire-fighting water, it is the important component of city, industrial area and building exterior fire-fighting system, provides the water source of quick connection for fire truck and portable fire-fighting equipment.

[0003] The ground fire hydrant in prior art is exposed above ground and installed fixedly, so it is easy to be accidentally hit in the area with heavy traffic or frequent vehicle passing, when the fire hydrant is hit, the plug body part is relatively slender, so it is easy to bend, break or twist and deform, in addition, the hit can also cause internal valve damage or seal failure, so that the fire hydrant loses normal closing function, and then causes continuous water leakage problem, more seriously, it can damage the flange interface connected with underground pipeline, causing a large amount of water resource waste and potential harm to the surrounding environment, the fire hydrant after dumping and deforming not only loses the original fire-fighting function, but also can become a road safety hazard, hindering traffic and threatening pedestrian safety, secondly, repairing or replacing the damaged fire hydrant often needs to close the water supply system for maintenance work, which will affect the normal water supply of surrounding area, at the same time, replacing the entire equipment means that the ground must be re-excavated, the old device must be removed, the new fire hydrant must be installed and the road surface must be restored, the whole process is time-consuming and laborious, increases the maintenance cost and consumption of social resources.

[0004] Therefore, the insufficient anti-impact ability of fire hydrant is an important challenge currently faced, and more advanced design and technology need to be developed to improve its crashworthiness and safety. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in prior art and provides a kind of anti-collision fire hydrant.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A kind of anti-collision fire hydrant, including flange elbow, valve body and plug body, the flange elbow is fixedly connected with valve body by a plurality of bolts and nuts, and flange elbow gasket is arranged between the flange elbow and valve body, the top of valve body is fixed with the bottom of plug body by a plurality of connecting bolts, and valve body gasket is arranged between valve body and plug body, water outlet assembly is arranged on the plug body, and control assembly for controlling water flow is arranged in the valve body.

[0008] As a preferred technical scheme of the utility model, the water outlet assembly comprises two water outlet nozzle covers, two water outlet nozzles on the bolt body are each provided with a fixed interface, the two water outlet nozzle covers are connected with the two fixed interfaces respectively, a sealing gasket is arranged between the fixed interface and the water outlet nozzle cover, a water outlet nozzle is further arranged on the side wall of the bolt body, a water outlet nozzle cover is fixed on the water outlet nozzle, a water outlet nozzle gasket is arranged between the water outlet nozzle cover and the water outlet nozzle, and chains are arranged between the water outlet nozzle cover and the bolt body and between the water outlet nozzle cover and the bolt body.

[0009] As a preferred technical scheme of the utility model, the control assembly comprises a bolt cap arranged at the top of the bolt body, a valve rod is arranged in the bolt cap, the bottom end of the valve rod extends into the inside of the bolt body, the valve rod is rotationally connected with the bolt body and is coaxially arranged with the bolt body, a connecting rod is sleeved at the bottom end of the valve rod, a shear pin clutch is arranged at the bottom end of the connecting rod, the connecting rod and the valve rod and the connecting rod and the shear pin clutch are fixedly connected through pins, a support disc is fixed at the top end position of the inner side of the valve body, a water inlet is arranged on the support disc, the bottom end of the shear pin clutch extends into the inside of the valve body, the shear pin clutch is rotationally connected with the support disc, a screw rod is arranged at the bottom end of the shear pin clutch, a screw nut is threadedly sleeved at the bottom end of the screw rod, a valve clack is fixed at the bottom end of the screw nut, a valve clack sealing gasket is fixed at the bottom of the valve clack, the longitudinal section of the valve clack is in a character 'gan' structure, the bottom end of the valve clack penetrates through the valve clack sealing gasket, a valve clack nut is threadedly sleeved at the bottom end of the valve clack, the cross section of the valve body is in a rectangular structure, the side wall of the valve clack is attached to the inner side of the valve body, and a valve seat is fixed at the inner side of the valve body and is located below the valve clack.

[0010] As a preferred technical scheme of the utility model, the lower section position of the side wall of the valve body is provided with an automatic drain valve.

[0011] As a preferred technical scheme of the utility model, the inside of the connecting bolt is hollow.

[0012] As a preferred technical scheme of the utility model, the bolt cap sealing gasket is arranged between the bottom of the bolt cap and the bolt body, and the sealing ring is arranged between the valve rod and the bolt cap.

[0013] The utility model has the following beneficial effects:

[0014] 1. The anti-impact ability is enhanced: the connecting bolt and the shear pin clutch can be preferentially fractured when impacted, impact force is effectively absorbed, the bolt body and the valve body can be timely separated, the whole fire hydrant is prevented from toppling or being seriously deformed, and the risk of overall structure damage is reduced;

[0015] 2, reduce maintenance cost and time: when the impact causes the bolt body and the valve body to separate, only need to replace the damaged connecting bolt and shear pin type clutch, and do not need to replace the whole fire hydrant, which greatly shortens the maintenance time, reduces the material cost, and also reduces the water supply interruption caused by maintenance, and further improves the emergency response efficiency;

[0016] 3, overload protection mechanism: the design of the shear pin type clutch and the pin makes the component module of the driving valve flap move, and then automatically disconnects when encountering an abnormal large external force or torque, protects the internal mechanical structure from damage, and further improves the protection performance of the system;

[0017] 4, prevent water waste: the separation design of the valve body and the bolt body when impacted makes the valve flap can stably prevent water leakage, and further prevent the influence on the surrounding environment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 A structure diagram of the anti-collision fire hydrant is proposed.

[0019] Fig. 2 The structure diagram of the bolt body is shown.

[0020] In the figure: 1 flange elbow, 2 flange elbow gasket, 3 valve nut, 4 valve seat, 5 automatic drain valve, 6 valve body, 7 valve body gasket, 8 connecting bolt, 9 bolt body, 10 large link, 11 chain, 12 small link, 13 water outlet nozzle cover, 14 fixed interface, 15 sealing gasket, 16 bolt cap, 17 valve rod, 18 sealing ring, 19 bolt cap sealing gasket, 20 pin, 21 connecting rod, 22 water outlet nozzle, 23 water outlet nozzle gasket, 24 water outlet nozzle cover, 25 shear pin type clutch, 26 support disc, 27 screw rod, 28 screw rod nut, 29 valve flap, 30 valve flap sealing gasket, 31 bolt, 32 nut. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0022] REFERENCE Figs. 1-2The utility model provides an anti-collision fire hydrant, including flange bend 1, valve body 6 and plug body 9, one end of flange bend 1 is connected with underground water source, and the other end is communicated with inside valve body 6, when installing, valve body 6 and flange bend 1 are all located underground, and plug body 9 is located on the ground, and flange bend 1, valve body 6 and plug body 9 are all casted with fire -extinguishing cast iron, improve the strength of the overall structure of device, and flange bend 1 is fixedly connected with valve body 6 through a plurality of bolts 31 and nut 32, and flange bend 1 is equipped with flange bend gasket 2 between valve body 6, flange bend gasket 2 can guarantee the sealing between flange bend 1 and valve body 6, and the top of valve body 6 is fixed with the bottom of plug body 9 through a plurality of connecting bolts 8, and valve body 6 is equipped with valve body washer 7 between plug body 9, connecting bolt 8 passes through valve body washer 7, and the inside of connecting bolt 8 is hollow, and the structural strength of connecting bolt 8 will be weaker than bolt 31, when plug body 9 is impacted, connecting bolt 8 will be deformed and broken and other absorption impact caused by impact, further, the middle diameter of connecting bolt 8 is less than the diameter of both ends, and can be broken from the middle when being impacted;

[0023] Plug body 9 is equipped with water outlet assembly, and the water outlet assembly includes two water outlet nozzle covers 13, two water outlet nozzles on the plug body 9 are each equipped with a fixed interface 14, the fixed interface 14 is prior art, which can be a threaded interface, a bayonet interface, etc., the two water outlet nozzles on the plug body 9 are symmetrically arranged, and when the fire hydrant is connected to a fire pipe, the forces acting on the two sides of the plug body 9 will be balanced, which is conducive to the stability of the plug body 9 and prolongs the service life of the device, the two water outlet nozzle covers 13 are respectively connected to the two fixed interfaces 14, a sealing gasket 15 is arranged between the fixed interface 14 and the water outlet nozzle cover 13, and a water outlet nozzle 22 is further formed in the side wall of the plug body 9 and located between the two water outlet nozzles. The arrangement of the water outlet nozzle 22 can increase the water outlet of the fire hydrant and improve the flexibility and efficiency of fire fighting operations, especially in large-scale fires or complex fire scenes, multiple fire teams may need to work simultaneously, and three water outlets allow more fire hoses to be connected at the same time, thereby supplying water to multiple fire points simultaneously and accelerating the fire extinguishing speed. In addition, the water outlet nozzle 22 can be suitable for foam mixed liquid, thereby improving the practicability of the fire hydrant. The water outlet nozzle 22 is fixedly provided with a water outlet nozzle cover 24, and a water outlet nozzle gasket 23 is arranged between the water outlet nozzle cover 24 and the water outlet nozzle 22. Chains 11 are arranged between the water outlet nozzle cover 13 and the plug body 9 and between the water outlet nozzle cover 24 and the plug body 9. The overall size of the water outlet nozzle cover 13 is smaller than that of the water outlet nozzle cover 24. The chains 11 on the water outlet nozzle cover 13 are composed of a plurality of small chain links 12, and the chains 11 on the water outlet nozzle cover 24 are composed of a plurality of large chain links 10. Such size differentiation design can prevent the water outlet nozzle 22 from being opened without authorization and improve the structural strength of the device.

[0024] The inside of the valve body 6 is provided with a control assembly for controlling water flow, the control assembly comprises a plug cap 16 arranged at the top of the plug body 9, the inside of the plug cap 16 is provided with a valve rod 17, a plug cap sealing gasket 19 is arranged between the bottom of the plug cap 16 and the plug body 9, so as to ensure the sealing between the plug cap 16 and the plug body 9, thereby prolonging the service life of the internal components of the fire hydrant, a sealing ring 18 is arranged between the valve rod 17 and the plug cap 16, the bottom end of the valve rod 17 extends to the inside of the plug body 9, the valve rod 17 is rotationally connected with the plug body 9, and the valve rod 17 and the plug body 9 are coaxially arranged, the bottom end of the valve rod 17 is sleeved with a connecting rod 21, the bottom end of the connecting rod 21 is provided with a shear pin clutch 25, the connecting rod 21 and the valve rod 17 are fixedly connected through a pin 20, and the connecting rod 21 and the shear pin clutch 25 are fixedly connected through the pin 20, specifically, the shear pin clutch 25 is composed of an upper rod and a lower rod, the bottom end of the upper rod is sleeved on the top end of the lower rod and is fixed through a pin, the top end of the upper rod is fixed through the pin 20 and the bottom end of the connecting rod 21, the bottom end of the lower rod is fixed through the pin 20 and the top end of a screw rod 27, the pin 20 and the pin are perpendicular to the axis direction of the connecting rod 21, and the connection position of the upper rod and the lower rod is located at the bottom end position in the inside of the plug body 9, a supporting disc 26 is fixed to the inside top end position of the valve body 6, a water inlet is arranged on the supporting disc 26, the bottom end of the shear pin clutch 25 extends to the inside of the valve body 6, the shear pin clutch 25 is rotationally connected with the supporting disc 26, a screw rod 27 is arranged on the bottom end of the shear pin clutch 25, a screw nut 28 is threadedly sleeved on the bottom end of the screw rod 27, a valve clack 29 is fixed to the bottom end of the screw nut 28, a valve clack sealing gasket 30 is fixed to the bottom of the valve clack 29, the longitudinal section of the valve clack 29 is in a character shape structure, the bottom end of the valve clack 29 penetrates through the valve clack sealing gasket 30, a valve clack nut 3 is threadedly sleeved on the bottom end of the valve clack 29, and the valve clack sealing gasket 30 is located between the valve clack nut 3 and the valve clack 29, so that the valve clack nut 3 can fix the valve clack sealing gasket 30 and ensure the sealing performance of the valve clack 29, the cross section of the valve body 6 is in a rectangular structure, the side wall of the valve clack 29 is attached to the inside of the valve body 6, which can guide the movement of the valve clack 29, a valve seat 4 is fixed to the inside of the valve body 6 and located below the valve clack 29, the valve seat 4 cooperates with the valve clack 29 to control water flow, and an automatic drain valve 5 is arranged at the lower segment position of the side wall of the valve body 6.

[0025] The specific working principle of the utility model is as follows:

[0026] When the external fire hose is needed, the staff unfastens the chain 11 after authorization, and takes off the outlet nozzle cover 13 or the outlet nozzle cover 24, and connects the fire hose interface, then rotates the valve rod 17, under the connection of the pin 20, the connecting rod 21, the shear pin clutch 25 and the screw rod 27 rotate, under the limiting action of the valve body 6 to the valve disc 29, the rotation of the screw rod 27 does not drive the screw nut 28 to rotate, but drives the screw nut 28 to move up together with the valve disc 29, so that the valve disc 29 and the valve seat 4 will produce a through opening, so that the water source enters the valve body 6 inside through the flange elbow 1, then enters the plug body 9 inside through the water inlet on the support disc 26, and finally enters the fire hose through the outlet nozzle or outlet nozzle 22, after the fire is extinguished, the valve rod 17 is rotated in the opposite direction to make the valve disc 29 move down and be attached to the valve seat 4, thereby interrupting the water outflow, and the excess water in the valve body 6 can be discharged through the automatic drain valve 5 to prevent the internal components of the valve body 6 from being damaged by long-term immersion in water;

[0027] When the fire hydrant is impacted, the connecting bolt 8 will break, so that the plug body 9 and the valve body 6 are separated, and the shear pin clutch 25 breaks, so that the connection between the connecting rod 21 and the screw rod 27 is disconnected, so that the plug body 9 and its internal components are separated from the valve body 6 and its internal components. Such a breaking design can absorb the impact force caused by the impact to protect the fire hydrant from serious damage. When repairing, only the shear pin clutch 25 and the connecting bolt 8 need to be replaced, which reduces the maintenance cost, shortens the maintenance time and interruption time, improves the safety of the device, ensures the stability of the structure in the valve body 6, prevents water leakage, and prevents water leakage. Secondly, the design of the pin 20 enables the components that drive the valve disc 29 to be modularized, facilitating the replacement of damaged components, and when the valve rod 17 encounters an abnormally large external force or torque, the pin 20 can break, which can protect the components in the fire hydrant and play an overload protection role, improving the protection performance of the device.

[0028] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent substitutions or changes to the technical solutions and concepts of the present application within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A fire hydrant with anti-collision features, comprising a flange bend (1), a valve body (6), and a hydrant body (9), characterized in that, The flange bend (1) and the valve body (6) are fixedly connected by several bolts (31) and nuts (32), and a flange bend gasket (2) is provided between the flange bend (1) and the valve body (6). The top of the valve body (6) and the bottom of the plug body (9) are fixed by several connecting bolts (8), and a valve body gasket (7) is provided between the valve body (6) and the plug body (9). A water outlet assembly is provided on the plug body (9), and a control assembly for controlling the water flow is provided inside the valve body (6). The control assembly includes a cap (16) on top of the cap (9), a valve stem (17) inside the cap (16), the bottom end of the valve stem (17) extending into the interior of the cap (9), the valve stem (17) being rotatably connected to the cap (9), and the valve stem (17) being coaxial with the cap (9), a connecting rod (21) sleeved on the bottom end of the valve stem (17), a shear pin clutch (25) at the bottom end of the connecting rod (21), the connecting rod (21) being fixedly connected to the valve stem (17) and to the shear pin clutch (25) by pins (20), a support plate (26) fixed at the top inner side of the valve body (6), and a water inlet on the support plate (26), the bottom end of the shear pin clutch (25) extending into the valve body (6). The valve body (6) has a rectangular cross-section, and the sidewall of the valve disc (29) is in contact with the inner side of the valve body (6). A valve seat (4) is fixed to the inner side of the valve body (6), and the valve seat (4) is located below the valve disc (29).

2. The anti-collision fire hydrant according to claim 1, characterized in that, The water outlet assembly includes two water outlet caps (13). Each of the two water outlets on the plug body (9) is provided with a fixed interface (14). The two water outlet caps (13) are respectively connected to the two fixed interfaces (14). A sealing gasket (15) is provided between the fixed interface (14) and the water outlet cap (13). A water outlet nozzle (22) is also provided on the side wall of the plug body (9). A water outlet nozzle cap (24) is fixed on the water outlet nozzle (22). A water outlet nozzle gasket (23) is provided between the water outlet nozzle cap (24) and the water outlet nozzle (22). A chain (11) is provided between the water outlet cap (13) and the plug body (9) and between the water outlet nozzle cap (24) and the plug body (9).

3. The anti-collision fire hydrant according to claim 1, characterized in that, An automatic drain valve (5) is provided at the lower section of the side wall of the valve body (6).

4. The anti-collision fire hydrant according to claim 1, characterized in that, The interior of the connecting bolt (8) is hollow.

5. The anti-collision fire hydrant according to claim 1, characterized in that, A nut sealing gasket (19) is provided between the bottom of the nut cap (16) and the nut body (9), and a sealing ring (18) is provided between the valve stem (17) and the nut cap (16).

Images