CN214784401U - Pressure-regulating anti-collision high-pressure fire hydrant - Google Patents
Pressure-regulating anti-collision high-pressure fire hydrant Download PDFInfo
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- CN214784401U CN214784401U CN202120360058.2U CN202120360058U CN214784401U CN 214784401 U CN214784401 U CN 214784401U CN 202120360058 U CN202120360058 U CN 202120360058U CN 214784401 U CN214784401 U CN 214784401U
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Abstract
The utility model discloses a pressure-regulating anti-collision high-pressure fire hydrant, which comprises a hydrant head and a hydrant body which are connected with each other, wherein three fire interfaces are arranged on the hydrant head, a switch sleeve is rotatably supported at the top of the hydrant head, a big lead screw is connected in the switch sleeve in a threaded manner, the bottom end of the big lead screw is connected with a ball rod through a transmission rod, the transmission rod is also connected in a guide sleeve fixedly arranged in the hydrant head in a sliding manner, a universal ball is arranged at the bottom end of the ball rod and is movably connected in a ball seat, the ball seat is provided with the top end of a pressure regulating spring, the bottom end of the pressure regulating spring is connected with an automatic pressure-reducing and pressure-stabilizing wedge plate, the whole automatic pressure-reducing and pressure-stabilizing wedge plate is in a round platform shape, a valve rod is connected at the bottom end of the automatic pressure-reducing and pressure-stabilizing wedge plate, the bottom end of the valve rod is connected with a sliding sleeve, a sealing rubber ring is arranged along the bottom edge of the sliding sleeve, the sealing rubber ring is matched with a sealing seat ring fixedly arranged at the bottom of the hydrant body, and the sliding sleeve is connected in a sliding way in the sleeve part positioned in the bolt body.
Description
Technical Field
The utility model relates to a fire hydrant, especially a high-pressure fire hydrant of pressure regulating anticollision.
Background
In the current national standard (GB 4452-2011) of the outdoor fire hydrant, only two pressure grades of 1.0MPa and 1.6MPa exist, and the pressure grade of PN2.5MPa or above is not produced by one manufacturer at home at present.
However, the current petrochemical industry has generally adopted an independent fire water system, the standby pressure of an all-weather pipe network is between 0.7 and 0.9MPa, an overground fire hydrant, a fire water monitor, a fire water crane, a storage tank fire-fighting spray device and the like are used in an emergency, a fire-fighting special pump can be automatically started, the pressure can reach more than 1.6MPa, and the pressure of the fire-fighting pipe network in a remote area is also more than 1.6MPa to ensure the fire-fighting requirement. Thus, there is no product suitable for pressure ratings above 1.6 MPa. In addition, due to the structural design defects of the fire hydrant in the prior art, the outdoor fire hydrant with the pressure grade of below 1.6MPa cannot ensure sealing, and is very difficult to open.
People relevant to fire fighting know that: the fire-fighting lance who inserts the fire hydrant, when the water pressure of fire hydrant exceeded 0.5MPa, because of the reaction force that the squirt sprays is slided to the wetness, the squirt has the danger of taking off the hand, and this brings unforeseen hidden danger for fire fighter's personal safety, and this just needs the fire hydrant to have the function of decompression steady voltage. Some self-called pressure-reducing and pressure-stabilizing fire hydrants in the market only throttle through the size of the switch and are realized by reducing the water outlet flow, and when the pressure fluctuation of a pipe network is large, the pressure stabilization of the water outlet cannot be realized, so that potential safety hazards to operators are caused.
In addition, outdoor fire hydrant of petrochemical industry is pressed all the time, and often installs in the roadside or other easy accessible positions of fire engine, often has the condition that the accident is damaged to happen to take place. Once the fire hydrant is damaged by collision, a large amount of pressure water overflows, and the pressure water flows into a river instantly, so that the fire hydrant is required to have an anti-collision function.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a solve the above-mentioned not enough that prior art exists, provide one kind and be fit for the pipe network pressure level and exceed 1.6MPa, still possess collision avoidance function's high pressure fire hydrant simultaneously.
The technical solution of the utility model is that: the utility model provides a high pressure fire hydrant of pressure regulating anticollision, includes interconnect's bolt head 3 and bolt body 12, its characterized in that: the fire-fighting joint is characterized in that the bolt head 3 is provided with three fire-fighting interfaces 4, the top of the bolt head 3 is rotatably supported with a switch sleeve 1, a large lead screw 2 is connected with the internal thread of the switch sleeve 1, the bottom end of the large lead screw 2 is connected with a ball rod 7 through a transmission rod 6, the transmission rod 6 is further connected in a sliding way in a guide sleeve 5 fixedly arranged in the bolt head 3, the bottom end of the ball rod 7 is provided with a universal ball 8, the universal ball 8 is movably connected in a ball seat 9, the ball seat 9 is provided with the top end of a pressure regulating spring 11, the bottom end of the pressure regulating spring 11 is connected with an automatic pressure reducing and stabilizing wedge plate 13, the automatic pressure reducing and stabilizing wedge plate 13 is integrally in a circular truncated cone shape, the bottom end of the automatic pressure reducing and stabilizing wedge plate 13 is connected with a valve rod 17, the bottom end of the valve rod 17 is connected with a sliding sleeve 18, the bottom edge of the sliding sleeve 18 is provided with a sealing rubber ring 19, and the sealing rubber ring 19 is matched with a sealing ring 20 fixedly arranged at the bottom of the bolt body 12, the sliding sleeve 18 is connected in a sliding way in the sleeve part positioned in the bolt body 12, and the bottom surface of the sliding sleeve 18 is also provided with a pressure reducing hole,
the bolt body 12 is also provided with an automatic water discharge valve seat 15 positioned between an automatic pressure reducing and stabilizing wedge plate 13 and a sliding sleeve 18, the center of the automatic water discharge valve seat 15 is provided with an automatic water discharge valve core 14, the valve rod 17 is connected in the automatic water discharge valve core 14 in a sliding way, the valve rod 17 is also fixedly provided with a valve plate matched with the automatic water discharge valve core 4, the outlet of the automatic water discharge valve seat 15 is connected with a water discharge channel arranged in the bolt body 12, the water discharge port at the tail end of the water discharge channel is also provided with an anti-blocking shield 16 fixedly connected on the outer wall of the bolt body 12,
the bolt head 3 and the bolt body 12 are connected through an anti-collision flange 10, and the strength of the anti-collision flange 10 is smaller than that of the bolt head 3 and the bolt body 12.
One of the three fire-fighting interfaces 4 is a fire engine interface, and the other two fire-fighting interfaces are water hose interfaces.
Compared with the prior art, the utility model, have following advantage:
in the pressure-regulating anti-collision high-pressure fire hydrant, the anti-collision flanges with the strength smaller than that of other parts are arranged, once accidental collision occurs, the whole fire hydrant can be broken at the anti-collision flanges, at the moment, although the hydrant head and the hydrant body are inclined, the bottom end of the transmission rod is connected with the ball seat through the universal ball, so that the transmission rod and the valve rod can swing relatively, the valve rod and the sliding sleeve at the bottom end of the valve rod cannot move upwards, the fire hydrant cannot be opened due to collision, fire water is prevented from overflowing and erupting, and only a new anti-collision flange needs to be replaced at the ground when maintenance is carried out;
in addition, an automatic pressure reducing and stabilizing wedge plate controlled by a pressure regulating spring is arranged in the water inlet device, when the pressure of inlet water rises, the automatic pressure reducing and stabilizing wedge plate overcomes the elastic force of the pressure regulating spring to move upwards, so that the flow area of the pressure water flowing through the position is reduced, the overflowing pressure is reduced, and when the pressure of the inlet water drops, the automatic pressure reducing and stabilizing wedge plate moves downwards under the elastic force of the pressure regulating spring to increase the flow area, so that the pressure reducing and stabilizing effects are achieved;
meanwhile, the bottom surface of the sliding sleeve is also provided with a pressure reducing hole, so that the fire hydrant is not limited by water pressure when opened, the borne water pressure resistance can be almost ignored, the fire hydrant is convenient to open, and the fire hydrant is suitable for any water pressure system;
and moreover, the structure of an automatic drainage valve core, an automatic drainage valve seat, an anti-blocking shield and the like is further arranged in the fire hydrant, when the fire hydrant is opened, the large-lead screw rod drives the valve rod to move upwards, the drainage hole in the automatic drainage valve seat is closed, when the fire hydrant is closed, the large-lead screw rod can drive the valve rod to move downwards, the automatic drainage valve seat is opened, residual water in the inner cavity of the fire hydrant flows out of the hydrant body through the drainage holes on two sides, the anti-freezing effect can be achieved in cold winter, and the shield at the drainage hole can prevent the drainage hole from being blocked by silt.
In conclusion, the pressure-regulating anti-collision high-pressure fire hydrant has multiple advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 2 is a schematic structural view of a portion a in fig. 1.
Fig. 3 is a schematic structural view of a closed state of the portion B in fig. 1.
Fig. 4 is a schematic structural view of the portion B in fig. 1 in an open state.
The following description will explain embodiments of the present invention with reference to the drawings. As shown in fig. 1, 2, 3, and 4: a pressure-regulating anti-collision high-pressure fire hydrant comprises a hydrant head 3 and a hydrant body 12 which are connected with each other, wherein three fire interfaces 4 are arranged on the hydrant head 3, one of the three fire interfaces 4 is a fire engine interface, and the other two fire interfaces are water hose interfaces;
the top of the bolt head 3 is rotatably supported with a switch sleeve 1, a large lead screw 2 is connected with the inner thread of the switch sleeve 1, the bottom end of the large lead screw 2 is connected with a ball rod 7 through a transmission rod 6, the transmission rod 6 is further connected in a guide sleeve 5 fixedly arranged in the bolt head 3 in a sliding way, the bottom end of the ball rod 7 is provided with a universal ball 8, the universal ball 8 is movably connected in a ball seat 9, the ball seat 9 is provided with the top end of a pressure regulating spring 11, the bottom end of the pressure regulating spring 11 is connected with an automatic pressure reducing and stabilizing wedge plate 13, the whole automatic pressure reducing and stabilizing wedge plate 13 is in a circular truncated cone shape, the bottom end of the automatic pressure reducing and stabilizing wedge plate 13 is connected with a valve rod 17, the bottom end of the valve rod 17 is connected with a sliding sleeve 18, the bottom edge of the sliding sleeve 18 is provided with a sealing rubber ring 19, and the sealing rubber ring 19 is matched with a sealing seat ring 20 fixedly arranged at the bottom of the bolt body 12, the sliding sleeve 18 is connected in a sliding way in the sleeve part positioned in the bolt body 12, and the bottom surface of the sliding sleeve 18 is also provided with a pressure reducing hole,
the bolt body 12 is also provided with an automatic water discharge valve seat 15 positioned between an automatic pressure reducing and stabilizing wedge plate 13 and a sliding sleeve 18, the center of the automatic water discharge valve seat 15 is provided with an automatic water discharge valve core 14, the valve rod 17 is connected in the automatic water discharge valve core 14 in a sliding way, a valve plate matched with the automatic water discharge valve core 4 is also fixedly arranged on the valve rod 17, the outlet of the automatic water discharge valve seat 15 is connected with a water discharge channel arranged in the bolt body 12, the water discharge port at the tail end of the water discharge channel is also provided with an anti-blocking shield 16 fixedly connected on the outer wall of the bolt body 12, and the anti-blocking shield 16 can prevent silt from blocking the water discharge port;
the bolt head 3 and the bolt body 12 are connected through an anti-collision flange 10, and the strength of the anti-collision flange 10 is smaller than that of the bolt head 3 and the bolt body 12.
The utility model discloses high-pressure fire hydrant's of pressure regulating anticollision working process as follows: in a closed state, the large-lead screw 2 is at a lower limit position, at the moment, the sealing rubber ring 19 at the bottom edge of the sliding sleeve 18 is tightly attached to the sealing seat ring 20 at the bottom of the bolt body 12, and water can enter the inner cavities of the sliding sleeve 18 and the sleeve part through the pressure reduction hole but cannot enter the bolt body 12;
when the fire hydrant is needed to be used, a tool such as a wrench and the like is utilized to twist the switch sleeve 1 to rotate, the large-lead screw 2 in threaded connection with the switch sleeve is driven to drive the transmission rod 6, the ball rod 7, the pressure regulating spring 11 and the valve rod 17 to move upwards together, the sliding sleeve 18 is pulled to move upwards, after the sealing rubber ring 19 is separated from the sealing seat ring 20, the hydrant body 12 is opened, and water enters the hydrant body 12 and then flows upwards to enter the hydrant head 3 to be finally supplied to a fire hose connected with the fire interface 4;
in the process, the water pressure of the system pipe network can apply acting force to the bottom surface of the automatic pressure reducing and stabilizing wedge plate 13, and the pressure regulating spring 11 can automatically balance the acting force; if the water pressure of the system pipe network is large, the automatic pressure reducing and stabilizing wedge plate 13 overcomes the elastic force of the pressure regulating spring 11 and moves upwards, so that the valve rod 17 and the sliding sleeve 18 at the bottom end of the valve rod are driven to move upwards, the distance between the sliding sleeve 18 and the sealing seat ring 20 is increased, and the purpose of reducing the water outlet pressure is achieved;
on the contrary, when the water pressure of the system pipe network is relatively large, the elastic force of the pressure regulating spring 11 can overcome the acting force on the bottom surface of the automatic pressure reducing and stabilizing wedge plate 13 and drive the valve rod 17 and the sliding sleeve 18 at the bottom end of the valve rod to move downwards, and the distance between the sliding sleeve 18 and the sealing ring 20 is reduced, so that the effect of increasing the water pressure is achieved; when the two forces are balanced, the automatic pressure reducing and stabilizing wedge plate 13 stops moving; namely, the structure can automatically adjust the water outlet pressure according to the water pressure of a system pipe network;
because the strength of the anti-collision flange 10 is less than that of the bolt head 3 and the bolt body 12, once collision occurs, the bolt head 3 and the bolt body 12 are broken at the anti-collision flange 10, that is, an included angle occurs between the bolt head 3 and the bolt body 12, but because the universal ball 8 and the ball seat 9 are just located at the connection position of the bolt head 3 and the bolt body 12, even if the bolt head 3 and the bolt body 12 are inclined, the universal ball 8 can correspondingly rotate in the ball seat 9 along with the movement of the bolt body 12, so that upward force is applied to the ball seat 9 (and mechanisms such as the pressure regulating spring 11, the valve rod 17 and the sliding sleeve 18 at the bottom of the ball seat 9) by the transmission rod 6, and the sealing rubber ring 19 at the bottom of the sliding sleeve 18 still keeps a tight contact state with the sealing ring 20, thereby preventing water body leakage in a pipe network; a maintenance worker only needs to righting the bolt head 3 and then replace a new anti-collision flange 10;
because the bottom surface of the sliding sleeve 18 is provided with the pressure reducing holes, water in a system pipe network can directly enter the inner cavity of the sliding sleeve 18 through the pressure reducing holes, when the fire hydrant is opened, the sliding sleeve 18 and the sealing rubber ring 19 connected with the bottom end of the sliding sleeve 18 are hardly influenced by the water pressure in the pipe network, and thus, the fire hydrant can still be easily opened or closed under the system pressure of 2.5MPa or more;
when the fire hydrant is in an open state, the valve rod 17 moves upwards, at the moment, a valve plate connected to the valve rod 17 is tightly attached to the automatic drainage valve core 14, the automatic drainage pipeline is closed, and the fire hydrant can normally work; when the fire hydrant is closed, the valve rod 17 moves downwards, the valve plate is separated from the automatic drainage valve core 14 under the action of the valve rod, the automatic drainage pipeline is conducted, and the water body remained in the hydrant body 12 can be discharged through the automatic drainage pipeline under the action of gravity, so that the anti-freezing effect is achieved in cold winter.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a high pressure fire hydrant of pressure regulating anticollision, includes interconnect's bolt head (3) and bolt body (12), its characterized in that: the fire-fighting hydrant is characterized in that three fire-fighting interfaces (4) are arranged on the hydrant head (3), the top of the hydrant head (3) is rotatably supported with a switch sleeve (1), a large lead screw (2) is connected with the internal thread of the switch sleeve (1), the bottom end of the large lead screw (2) is connected with a ball rod (7) through a transmission rod (6), the transmission rod (6) is further connected with a guide sleeve (5) fixedly arranged in the hydrant head (3) in a sliding manner, a universal ball (8) is arranged at the bottom end of the ball rod (7), the universal ball (8) is movably connected in a ball seat (9), the ball seat (9) is arranged at the top end of a pressure regulating spring (11), the bottom end of the pressure regulating spring (11) is connected with an automatic pressure reducing and stabilizing wedge plate (13), the automatic pressure reducing and stabilizing wedge plate (13) is integrally in a round table shape, and a valve rod (17) is connected at the bottom end of the automatic pressure reducing and stabilizing wedge plate (13), the bottom end of the valve rod (17) is connected with a sliding sleeve (18), the bottom edge of the sliding sleeve (18) is provided with a sealing rubber ring (19), the sealing rubber ring (19) is matched with a sealing seat ring (20) fixedly arranged at the bottom of the bolt body (12), the sliding sleeve (18) is connected in a sleeve part positioned in the bolt body (12) in a sliding way, and the bottom surface of the sliding sleeve (18) is also provided with a pressure reducing hole,
an automatic drainage valve seat (15) positioned between the automatic pressure reducing and stabilizing wedge plate (13) and the sliding sleeve (18) is also arranged on the bolt body (12), an automatic drainage valve core (14) is arranged at the center of the automatic drainage valve seat (15), the valve rod (17) is connected in the automatic drainage valve core (14) in a sliding way, a valve plate matched with the automatic drainage valve core (14) is also fixedly arranged on the valve rod (17), the outlet of the automatic drainage valve seat (15) is connected with a drainage channel arranged in the bolt body (12), an anti-blocking shield (16) fixedly connected on the outer wall of the bolt body (12) is also arranged at the drainage port at the tail end of the drainage channel,
the bolt head (3) and the bolt body (12) are connected through an anti-collision flange (10), and the strength of the anti-collision flange (10) is smaller than that of the bolt head (3) and the bolt body (12).
2. The pressure-regulating anti-collision high-pressure fire hydrant according to claim 1, characterized in that: one of the three fire-fighting interfaces (4) is a fire engine interface, and the other two fire-fighting interfaces are water hose interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120360058.2U CN214784401U (en) | 2021-02-09 | 2021-02-09 | Pressure-regulating anti-collision high-pressure fire hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120360058.2U CN214784401U (en) | 2021-02-09 | 2021-02-09 | Pressure-regulating anti-collision high-pressure fire hydrant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214784401U true CN214784401U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120360058.2U Active CN214784401U (en) | 2021-02-09 | 2021-02-09 | Pressure-regulating anti-collision high-pressure fire hydrant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214784401U (en) |
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2021
- 2021-02-09 CN CN202120360058.2U patent/CN214784401U/en active Active
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