Conveniently used fire valve and hydrant

Abstract

The application relates to the technical field of fire-fighting valves, in particular to a fire-fighting valve and fire hydrant convenient to use, which comprises a plug body and a valve body connected to the upper side of the plug body through flanges, a water inlet is arranged at the bottom of the valve body and is communicated with the plug body, a valve piece for opening and closing the water inlet is movably arranged in the valve body, a rubber sealing piece is fixedly arranged at the bottom of the valve piece and tightly contacts the upper side of the water inlet, the lifting of the valve piece and the rubber sealing piece is controlled through a first rotating mechanism, the rubber sealing piece has an elastic deformation effect, the rubber sealing piece and the ball plug double block the water inlet, the preliminary sealing of the water inlet is realized, and the rotation of a third rotating mechanism makes the four supporting rods continue to push the rubber sealing piece around the water inlet on the upper side of the water inlet, so that the sealing performance of the outer edge of the water inlet is further improved; the water cover can be rotated through the rotation of the hand rod, the water guide hole can quickly switch the corresponding water outlet valve port for water outlet.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fire fighting valves, in particular to a convenient-to-use fire fighting valve and hydrant. BACKGROUND

[0002] The existing fire fighting valve is generally provided with only a single water outlet valve port (such as a fire hydrant, a fire pump, etc.). When used, the water source is closed, the water pipe is disassembled, the new interface is switched, and the valve is reopened in sequence, which is a cumbersome and time-consuming process. In an emergency fire extinguishing scene, the pipe and valve installation work cannot be carried out while the water outlet rescue work is carried out, and the quick switching of the water outlet path or the temporary water closing operation cannot be realized, which delays the critical rescue opportunity.

[0003] At the same time, the existing mainstream valve relies on a simple valve disc to block the water inlet, and the sealing surface is easily worn by particles or deformed by high temperature, resulting in continuous leakage and ineffective sealing of the water inlet. Therefore, the water leakage rate of the fire hydrant valve increases significantly after long-term use, causing water pressure loss, which can easily lead to insufficient water pressure of the entire fire fighting system, especially in high-rise fire extinguishing, which can cause fatal consequences. In addition, the valve disc and the valve body are in rigid contact, and external impact (such as transportation and pipe vibration) can easily cause sealing failure. Therefore, it is necessary to improve the convenient-to-use fire fighting valve and hydrant. SUMMARY

[0004] The present application provides a convenient-to-use fire fighting valve and hydrant which overcomes the deficiencies described in the background art.

[0005] The technical solution adopted by the present application to solve its technical problems is:

[0006] A convenient-to-use fire fighting valve, comprising a hydrant body and a valve body flange-connected to the upper side of the hydrant body, the valve body is provided with a water inlet at the bottom, which is in communication with the hydrant body, and a valve disc is movably arranged in the valve body for opening and closing the water inlet, the valve disc is fixedly provided with a rubber sealing piece at the bottom, which is in close contact with the upper side of the water inlet, and the diameter of the rubber sealing piece is larger than the diameter of the valve disc, so that the rubber sealing piece protrudes outward from the valve disc.

[0007] The valve body is provided with a plurality of water outlet valve ports on the side, and the valve body is sequentially provided from bottom to top with a second rotating mechanism for rotating and switching the water outlet path of the water outlet valve port, a first rotating mechanism for controlling the lifting and closing of the valve disc to open and close the water inlet, and a third rotating mechanism for pressurizing and pushing the rubber sealing piece to tightly contact the outer periphery of the upper side of the water inlet.

[0008] The first rotating mechanism, the second rotating mechanism and the third rotating mechanism are on the same rotating axis, and the third rotating mechanism is rotatably arranged in the middle of the first rotating mechanism, and the first rotating mechanism is rotatably arranged in the middle of the second rotating mechanism.

[0009] Further improvement is that the rubber sealing sheet is integrally provided with a ball plug at the bottom of the rubber sealing sheet for fitting into the water inlet.

[0010] Further improvement is that the upper cover plate is fixedly arranged on the upper side of the valve body, and the upper support is fixedly arranged on the upper side of the upper cover plate.

[0011] Further improvement is that the second rotating mechanism comprises a water cover rotatably arranged on the inner side of the valve body, and a protruding part is arranged on the middle part of the upper side of the water cover, the protruding part is rotatably penetrated by the upper cover plate, and a hand lever is arranged on one side of the protruding part, and the water cover is open towards and communicated with the water inlet.

[0012] A water guide hole is arranged on one side of the water cover and communicated with the inner part of the water cover, the water guide hole is at the same level as each water outlet valve, and water is discharged by rotating the water guide hole to be communicated with the corresponding water outlet valve, and the inner rubber gasket is fixedly arranged on the inner wall of the valve body, and the valve body is in close contact with the outer side of the water cover through the inner rubber gasket.

[0013] Further improvement is that the first rotating mechanism comprises a rotating pipe, the rotating pipe is rotatably penetrated by the upper support, the protruding part and the middle part of the water cover from top to bottom, and the bottom end of the rotating pipe is fixedly connected with the valve sheet.

[0014] Further improvement is that when the rotating pipe is rotated, the valve sheet is pushed and pulled to move up and down by the action of the first screw thread and the upper support, so that the rubber sealing sheet and the ball plug are blocked or separated from the water inlet.

[0015] Further improvement is that the rotating pipe is provided with a limiting sliding groove on each side and communicated with the inner pipe cavity.

[0016] Further improvement is that the third rotating mechanism comprises a rotating rod, the rotating rod is rotatably inserted into the pipe cavity on the top of the rotating pipe, and the third screw thread is arranged on the surface of the rotating rod to be threadedly connected with the pipe cavity of the rotating pipe, the second hand wheel is arranged on the top of the rotating rod, the rotating block is rotatably arranged on the bottom of the rotating rod, the cross-shaped convex rod is connected to the bottom of the rotating block, the cross-shaped convex rod is slidably inserted into each limiting sliding groove, and the supporting rod is hingedly connected to each side of the cross-shaped convex rod, and the rubber sealing sheet is rotatably supported and connected to the top of the rubber sealing sheet through the supporting rod.

[0017] A fire hydrant comprises the fire valve.

[0018] By adopting the above technical scheme, the fire valve has the following advantages compared with the prior art.

[0019] The present application has simple structure, simple and convenient use, the first rotating mechanism is used for controlling the lifting of the valve plate and the rubber sealing plate, the rubber sealing plate has elastic deformation effect, the rubber sealing plate and the ball plug double block the water inlet, the preliminary sealing of the water inlet is realized, and the third rotating mechanism is rotated, the four supporting rods continue to push the rubber sealing plate around the water inlet, the rubber sealing plate is tightly pushed on the outer periphery of the water inlet, and the sealing of the outer edge of the water inlet is further strengthened;

[0020] Moreover, the valve body is designed with multiple water outlet valve ports, the second rotating mechanism is provided with a water cover to communicate with the water inlet, the water cover is rotated through the rotation of the hand rod, the water guide hole is quickly switched to the corresponding water outlet valve port for water outlet, or the water guide hole is rotated to correspond to the inner rubber gasket on the inner wall of the valve body to temporarily block the water outlet of each water outlet valve port, so that the water outlet work and the replacement of the fire fighting pipe can be flexibly and quickly switched according to the use requirement, one water outlet valve port can be used for water outlet work, and the other water outlet valve port can be used for dismounting work, the inner rubber gasket on the inner wall of the valve body corresponding to the rotation of the water guide hole can improve the sealing of the overall structure again under the condition that the valve plate and the rubber sealing plate block the water inlet, and the use effect and efficiency are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below in combination with the drawings and examples.

[0022] Figure 1 It is a structural schematic view of the present application;

[0023] Figure 2 It is a structural schematic view of the valve body of the present application;

[0024] Figure 3 It is a structural schematic view of the water cover of the first rotating mechanism and the second rotating mechanism of the present application;

[0025] Figure 4 It is a structural schematic view of the first rotating mechanism and the upper cover plate of the present application;

[0026] Figure 5 It is an exploded structural schematic view of the present application;

[0027] Figure 6 It is a structural schematic view of the second rotating mechanism of the present application;

[0028] Figure 7 It is a structural schematic view of the present application Figure 6 It is a structural schematic view of another view angle of the present application;

[0029] Figure 8 It is a structural schematic view of the third rotating mechanism of the present application;

[0030] In the diagram: 1. Plug body; 2. Valve body; 3. Outlet valve port; 30. Upper cover plate; 301. Upper support; 31. Inlet; 32. Inner rubber gasket; 4. First rotating mechanism; 40. First handwheel; 41. Rotating pipe; 410. First thread; 42. Valve plate; 421. Rubber sealing plate; 422. Ball plug; 43. Limiting groove; 5. Second rotating mechanism; 5. Water cover; 51. Water guide port; 52. Hand lever; 53. Third rotating mechanism; 6. Second handwheel; 60. Rotating rod; 61. Third thread; 611. Rotating block; 62. Cross protrusion rod; 63. Support rod; 64. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example 1

[0032] like Figures 1-8 As shown, a convenient fire valve includes a valve body 1 and a valve body 2 with a flange connected to the upper side of the valve body 1. The bottom of the valve body 2 has an inlet 31 communicating with the valve body 1, allowing water from the valve body 1 to enter the valve body 2 through the inlet 31. A valve disc 42 for opening and closing the inlet 31 is movably disposed within the valve body 2. The diameter of the valve disc 42 is typically larger than the diameter of the inlet 31, allowing it to bend and cover the inlet 31. A rubber seal is fixed to the bottom of the valve disc 42, ensuring tight contact with the upper side of the inlet 31. The sealing sheet 421 has a diameter larger than that of the valve plate 42, so that the outer periphery of the rubber sealing sheet 421 protrudes outside the valve plate 42. Since the rubber sealing sheet 421 has elastic deformation function, its outer edge can apply different forces to the upper side of the water inlet 31 to assist in sealing. Furthermore, the bottom of the rubber sealing sheet 421 is integrally provided with a ball plug 422 for fitting into the water inlet 31. The ball plug 422 can strengthen the sealing of the inner side of the water inlet 31.

[0033] In this embodiment, the valve body 2 has two outlet valve ports 3 on its side. The valve body 2 is provided with a second rotating mechanism 5 for rotating and switching the water outlet path of the outlet valve port 3, a first rotating mechanism 4 for controlling the valve plate 42 to lift and lower to open and close the inlet 31, and a third rotating mechanism 6 for pressurizing and pushing the rubber sealing plate 421 to press against the upper outer periphery of the inlet 31. Moreover, the first rotating mechanism 4, the second rotating mechanism 5 and the third rotating mechanism 6 are located on the same rotating axis, and the third rotating mechanism 6 is rotatably located in the middle of the first rotating mechanism 4, and the first rotating mechanism 4 is rotatably located in the middle of the second rotating mechanism 5. Furthermore, an upper cover plate 30 is installed on the upper side of the valve body 2, and an upper support 301 is fixed on the upper side of the upper cover plate 30. The first rotating mechanism 4 is rotatably connected to the upper support 301 and the upper cover plate 30.

[0034] Specifically, the second rotating mechanism 5 comprises a water cover 51 rotatably arranged inside the valve body 2, and a convex portion is arranged in the middle of the upper side of the water cover 51, the convex portion is rotatably penetrated by the upper cover plate 30, a hand lever 53 is arranged on one side of the convex portion, the water cover 51 is open towards and communicates with the water inlet 31, so that the water inside the plug body 1 can enter the water cover 51, and a water guide hole 52 is arranged on one side of the water cover 51 and communicates with the inside of the water cover 51, the water guide hole 52 is at the same level as the two water outlet valve ports 3, so that water is discharged by rotating the water guide hole 52 to communicate with the corresponding water outlet valve port 3, in addition, the inner rubber gasket 32 is fixedly arranged on the inner wall of the valve body 2, the valve body 2 is in close contact with the outside of the water cover 51 through the inner rubber gasket 32, so as to improve the sealing between the water cover 51 and the valve body 2, and when the water guide hole 52 is arranged on the inner rubber gasket 32, the water in the water guide hole 52 can be temporarily closed, without rotating the first rotating mechanism 4 and the third rotating mechanism 6, so as to facilitate the temporary disassembly of the fire hose of the water outlet valve port 3.

[0035] The first rotating mechanism 4 comprises a rotating pipe 41, the rotating pipe 41 is rotatably penetrated from top to bottom through the upper support 301, the convex portion and the middle portion of the water cover 51 in sequence, and the bottom end of the rotating pipe 41 is fixedly connected with the valve piece 42, the first hand wheel 40 is arranged on the top of the rotating pipe 41, the first screw thread 410 is arranged on the upper side surface of the rotating pipe 41, and the first screw thread 410 is threadedly connected with the upper support 301, so that the rotating pipe 41 can be rotated by the first hand wheel 40, and is displaced upward or downward by the thread action of the first screw thread 410 and the upper support 301, that is, when the rotating pipe 41 is rotated, the valve piece 42 is pushed or pulled to displace upward or downward by the thread action of the first screw thread 410 and the upper support 301, so that the rubber sealing piece 421 and the ball plug 422 are quickly blocked or separated to open the water inlet 31.

[0036] And, the rotating tube 41 is provided with a limiting sliding slot 43 on each side, which is connected with the inner cavity. The third rotating mechanism 6 comprises a rotating rod 61, which is rotatably arranged in the cavity of the top of the rotating tube 41. The surface of the rotating rod 61 is provided with a third thread 611, which is screwed with the cavity of the rotating tube 41. The top of the rotating rod 61 is provided with a second hand wheel 60. The bottom of the rotating rod 61 is rotatably provided with a rotating block 62. The rotating block 62 cannot rotate synchronously with the rotating rod 61, but only moves up and down. The bottom of the rotating block 62 is connected with a cross convex rod 63. The cross convex rod 63 is slidably arranged in each limiting sliding slot 43. The limiting sliding slot 43 limits the sliding of the cross convex rod 63, so as to realize the up and down movement of the cross convex rod 63. The four sides of the cross convex rod 63 are hingedly provided with a supporting rod 64, which is rotatably connected with the top of the four sides of the rubber sealing sheet 421. Therefore, the up and down movement of the cross convex rod 63 can be controlled by rotating the second hand wheel 60. The four supporting rods 64 simultaneously push and pull the four sides of the rubber sealing sheet 421 downward or upward. When the four supporting rods 64 push the rubber sealing sheet 421 downward, the rubber sealing sheet 421 applies an additional force to the outer periphery of the upper side of the water inlet 31, so as to greatly improve the sealing performance of the water inlet 31.

[0037] The specific use of the embodiment is that when the water inlet 31 needs to be tightly closed, the rotating tube 41 is rotated by the first hand wheel 40. The valve sheet 42, the rubber sealing sheet 421 and the ball plug 422 are gradually moved downward under the thread transmission of the first thread 410 and the upper support 301. The ball plug 422 is inserted into the inner side of the water inlet 31 to preliminarily seal the water inlet 31. The rubber sealing sheet 421 is extruded by the valve sheet 42 and tightly closed on the upper side of the water inlet 31 to preliminarily realize double sealing. Then, the second hand wheel 60 of the third rotating mechanism 6 is rotated. The rotating rod 61 is threadedly transmitted in the rotating tube 41 through the third thread 611. The rotating rod 61 is downwardly rotated and displaced. The rotating block 62 and the cross convex rod 63 connected with the bottom are downwardly displaced. The cross convex rod 63 is linearly slid downward under the limiting action of the limiting sliding slot 43. The four supporting rods 64 continue to push the rubber sealing sheet 421 around the water inlet 31 to tightly close on the outer periphery of the upper side of the water inlet 31. Different pressure tightly connected actions are formed to further improve the sealing performance of the outer edge of the water inlet 31. Moreover, the water cover 51 can be rotated by the hand rod 53. The water guide 52 is rotatably arranged on the inner rubber gasket 32 of the inner wall of the valve body 2. The sealing performance of the whole structure can be further improved under the sealing state of the valve sheet 42 and the rubber sealing sheet 421 on the water inlet 31.

[0038] Conversely, when the water inlet 31 needs to be opened to let the designated water outlet valve port 3 out of water, the first hand wheel 40 and the second hand wheel 60 are rotated in the opposite direction, so that the valve plate 42, the rubber sealing plate 421 and the ball plug 422 are completely separated from the water inlet 31. When water enters the water cover 51, it can be uniformly guided to the four sides under the action of the spherical surface of the ball plug 422, reducing the force of direct impact on the valve plate 42. Moreover, since the valve body 2 is designed with multiple water outlet valve ports 3, the rotation of the hand lever 53 can rotate the water cover 51, so that the water guide port 52 quickly switches to the corresponding water outlet valve port 3 for water outlet, or the water guide port 52 is rotated to temporarily block each water outlet valve port 3 by the inner rubber gasket 32 on the inner wall of the valve body 2. Thus, according to the use requirements, the water outlet work and the replacement of the fire hose can be flexibly and quickly switched, and one water outlet valve port 3 can be used for water outlet work while the other water outlet valve port 3 is used for disassembly work, greatly improving the use effect and efficiency. Example two

[0039] In this embodiment, a fire hydrant is provided, which comprises the fire valve described above.

[0040] The above examples show and describe the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above examples. The above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application. These changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A fire valve convenient to use, comprising a plug body (1) and a valve body (2) flange-connected to the upper side of the plug body (1), characterized in that: a water inlet (31) is formed in the bottom of the valve body (2) and communicates with the plug body (1), and a valve disc (42) is movably arranged in the valve body (2) and used to open and close the water inlet (31), the bottom of the valve disc (42) is fixedly provided with a rubber sealing disc (421) in close contact with the upper side of the water inlet (31), and the diameter of the rubber sealing disc (421) is larger than that of the valve disc (42), so that the rubber sealing disc (421) protrudes outward of the valve disc (42); a plurality of water outlet ports (3) are arranged on the side of the valve body (2), and the valve body (2) is sequentially provided from bottom to top with a second rotating mechanism (5) for rotating to switch the water outlet path of the water outlet ports (3), a first rotating mechanism (4) for controlling the lifting of the valve disc (42) to open and close the water inlet (31), and a third rotating mechanism (6) for pressurizing and pushing the rubber sealing disc (421) to tightly press against the outer periphery of the upper side of the water inlet (31); the first rotating mechanism (4), the second rotating mechanism (5) and the third rotating mechanism (6) are arranged on the same rotating shaft, and the third rotating mechanism (6) is rotatably arranged in the middle of the first rotating mechanism (4), and the first rotating mechanism (4) is rotatably arranged in the middle of the second rotating mechanism (5); the bottom of the rubber sealing disc (421) is integrally provided with a ball plug (422) for fitting into the water inlet (31); the first rotating mechanism (4) comprises a rotating tube (41); the third rotating mechanism (6) comprises a rotating rod (61), the bottom of the rotating rod (61) is rotatably arranged in the top cavity of the rotating tube (41), the surface of the rotating rod (61) is provided with a third thread (611) for threadedly connecting with the cavity of the rotating tube (41), the top of the rotating rod (61) is provided with a second hand wheel (60), the bottom of the rotating rod (61) is rotatably provided with a rotating block (62), the bottom of the rotating block (62) is connected with a cross-shaped convex rod (63), the four sides of the cross-shaped convex rod (63) are slidably arranged in the respective limiting sliding grooves (43), and the four sides of the cross-shaped convex rod (63) are respectively hingedly provided with supporting rods (64), and the supporting rods (64) are rotatably connected with the top four sides of the rubber sealing disc (421).

2. A fire valve for easy use according to claim 1, characterized in that the upper side of the valve body (2) is provided with an upper cover plate (30), and the upper side of the upper cover plate (30) is fixedly provided with an upper support (301), and the first rotating mechanism (4) is rotatably connected with the upper support (301) and the upper cover plate (30).

3. A fire valve for easy use according to claim 2, characterized in that the second rotating mechanism (5) comprises a water cover (51) rotatably arranged in the inner side of the valve body (2), the upper middle of the water cover (51) is provided with a protruding portion rotatably penetrating the upper cover plate (30), and the protruding portion is provided with a hand rod (53) on one side, the opening of the water cover (51) faces the water inlet (31) and communicates with the water inlet (31), and an inner rubber gasket (32) is fixedly arranged on the inner wall of the valve body (2), and the valve body (2) is in close contact with the outer side of the water cover (51) through the inner rubber gasket (32). The water cover (51) is provided with a water guide opening (52) on one side, which is in communication with the inside of the water cover (51) and is at the same level with each water outlet valve opening (3), and water is discharged by rotating the water guide opening (52) to be in communication with the corresponding water outlet valve opening (3).

4. A fire valve for easy use according to claim 3, characterized in that The rotating pipe (41) is rotatably penetrated through the upper support (301), the protruding part and the middle part of the water cover (51) from top to bottom, and the bottom end of the rotating pipe (41) is fixedly connected with the valve piece (42). The first hand wheel (40) is installed on the top of the rotating pipe (41), the upper side surface of the rotating pipe (41) is provided with the first screw thread (410), and the rotating pipe (41) is threadedly connected with the upper support (301) through the first screw thread (410).

5. A fire valve for easy use according to claim 4, characterized in that When the rotating pipe (41) rotates, the valve piece (42) is pushed and pulled to move up and down by the action of the first screw thread (410) and the upper support (301), so that the rubber sealing piece (421) and the ball plug (422) block or separate from the water inlet opening (31).

6. A fire valve for easy use according to claim 5, characterized in that The four sides of the rotating pipe (41) are respectively provided with limiting sliding grooves (43) in communication with the inner tube cavities.

7. A hydrant characterized by, The fire-fighting valve comprises the fire-fighting valve as claimed in any one of claims 1-6.

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