Water-leakage-proof fire valve

Abstract

The utility model discloses a leak-proof fire valve which comprises a valve body, a vertical pipe is arranged at the upper end of the valve body, a baffle is fixedly arranged on the inner wall of the vertical pipe, a sliding rod is arranged in the middle of the baffle in a sliding mode, a sealing plug is arranged at the bottom of the sliding rod, and the upper end of the sliding rod penetrates through the baffle and is provided with an abutting block. A reset spring is fixedly arranged between the abutting block and the baffle, a valve deck is arranged at the upper end of the vertical pipe, a threaded rod is arranged in the middle of the valve deck and is in threaded connection with the valve deck, and an ejector block is rotatably arranged at the bottom of the threaded rod, so that a user can rotate a hand wheel to enable the threaded rod to drive the ejector block to ascend, and the ejector block is driven to move upwards. When the valve is opened, the threaded rod is separated from the sealing plug, at the moment, the reset spring jacks up the sealing plug so that the valve can be in an open state, and meanwhile, the sealing ring at the upper end of the sealing plug can enter the sealing groove in the lower end of the baffle so that the connecting position of the threaded rod and the baffle can be shielded, and the water leakage phenomenon can be prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting valve technical field more specifically, it relates to a fire fighting valve of preventing water leakage. BACKGROUND

[0002] Valve is used for opening and closing pipeline, controls flow direction, adjusts and controls the parameter (temperature, pressure and flow) of conveyed medium, and is divided into shut-off valve, check valve, regulating valve according to its function, and fire fighting valve is an important accessory of control on industry, building pipeline, and is used for the valve of fluid control system, from the simplest stop valve to the various valves used in extremely complex automatic control system, and its variety and specification are quite numerous.

[0003] But the existing fire fighting valve in the process of using, because its control lever and the connecting position of valve cover adopt the way of thread, thus in the process of control, after the plugging is lifted, water flow will flow from the connecting position of valve cover and threaded rod, leads to the phenomenon of water leakage;

[0004] And the fire fighting valve is generally fixed by flange plate in the process of installation, the flange plate of the existing valve on both sides is mostly fixed model, thus when connecting with the pipeline of different model, easy to appear the problem of not connecting, influences normal use. UTILITY MODEL CONTENT

[0005] (I) the technical problem solved

[0006] In view of the problems in the prior art, the utility model provides a fire fighting valve of preventing water leakage to solve the technical problem that water flow flows from the connecting position of valve cover and threaded rod after the plugging is lifted mentioned in the background art.

[0007] (II) technical scheme

[0008] To achieve the above object, the utility model provides the following technical scheme: a fire fighting valve of preventing water leakage, including the valve body, the upper end of valve body is equipped with vertical pipe, the inner wall of vertical pipe is fixedly provided with baffle, the middle position of baffle is slidably provided with sliding rod, the bottom of sliding rod is equipped with plugging, the upper end of sliding rod passes through baffle and is equipped with abutting block, the abutting block and baffle are fixedly provided with return spring, the upper end of vertical pipe is equipped with valve cover, the middle position of valve cover is equipped with threaded rod, the threaded rod is connected with valve cover by screw thread, the bottom of threaded rod is rotatably provided with top block, and the upper end is fixedly provided with hand wheel, both ends of valve body are equipped with external connection pipe, and one end of external connection pipe is equipped with sleeve.

[0009] The utility model further sets up, the inside of sleeve all movably is equipped with the mounting bush, all is fixedly equipped with the catheter on the outer wall of mounting bush, one end of catheter all is equipped with the flange, the outer wall of sleeve and located upper and lower both sides all are set up the threaded hole, the outer wall of mounting bush is set up the connecting hole correspondingly, the inside of threaded hole and connecting hole all is equipped with the connecting screw, is convenient for to flange dismounts and changes.

[0010] The utility model further sets up, the one side of mounting bush all is fixedly equipped with the plug -in block, the inner wall of sleeve all is set up the plug -in groove correspondingly, plug -in block all is located the inside of plug -in groove, the connecting position of sleeve and mounting bush all is equipped with the rubber pad, convenient for increases the sealing property of mounting bush and sleeve connecting position.

[0011] The utility model further sets up, the intermediate position of valve body is fixedly equipped with the transition block, the upper end surface of transition block is set up the through -hole, the inside of through -hole is equipped with the rubber ring, the bottom of plugging plug is fixedly equipped with the sealing block, sealing block can enter the inside of rubber ring, convenient for makes this valve be in closed state.

[0012] The utility model further sets up, the inner wall of rubber ring and located upper end is equipped with the first taper surface, the outer wall of sealing block is equipped with the second taper surface correspondingly, the inclination of first taper surface and second taper surface is equal, convenient for increases the sealing property between sealing block and rubber ring.

[0013] The utility model further sets up, the outer wall diameter of plugging plug and the inner wall diameter of vertical tube are equal.

[0014] The utility model further sets up, the upper end surface of plugging plug is fixedly equipped with the sealing ring, the lower end surface of baffle is set up the sealing groove, sealing ring is located the inside of sealing groove, convenient for increases the sealing property between plugging plug and baffle.

[0015] The utility model further sets up, the connecting position of sealing ring and sealing groove is equipped with the sealing ring.

[0016] (Three) beneficial effect

[0017] Compared with the prior art, the utility model provides a fire valve of preventing water leakage, has the following

[0018] Beneficial effect:

[0019] 1、By setting the plug, block, baffle and threaded rod, so that the user can rotate the hand wheel to make the threaded rod driven top block to make it away from the block, the reset spring will be stretched to the plug to make the valve in an open state, while the plug on the upper end of the sealing ring will enter the baffle lower end of the sealing groove, to shield the threaded rod and baffle connection position to prevent the phenomenon of water leakage.

[0020] 2、By setting the sleeve, mounting sleeve and conduit, so that the user can be split by disassembling the connecting screw to the sleeve and mounting sleeve to disassemble and replace the flange plate, thereby increasing the flexibility of the device in the installation, to facilitate the connection with different models of external pipeline, and by setting the plug and plug groove, can increase the sealing of the mounting sleeve and sleeve connection position, to prevent the problem of water leakage.

[0021] 3、By setting the through hole, rubber ring, first taper and second taper, so that when the sealing block at the bottom of the plug down to the inside of the rubber ring, the second taper on the outer wall of the sealing block will be in contact with the first taper on the inner wall of the rubber ring, and each other to increase the sealing of the plug and the transition block connection position, to prevent the phenomenon of water flow after closing. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a kind of whole schematic diagram of a water leakage prevention fire valve in unused state;

[0023] Figure 2 is a whole sectional view of a water leakage prevention fire valve;

[0024] Figure 3 is the installation explosion drawing of baffle, sliding rod, plug, block and sealing ring;

[0025] Figure 4 is the position of the first taper on the rubber ring schematic diagram;

[0026] Figure 5 is the installation explosion drawing of valve body, external pipe, mounting sleeve, conduit, rubber pad and connecting screw.

[0027] In the figure: 1, valve body; 2, standpipe; 3, baffle; 4, sliding rod; 5, blocking plug; 6, abutting block; 7, reset spring; 8, valve cover; 9, threaded rod; 10, top block; 11, hand wheel; 12, external pipe; 13, sleeve; 14, mounting sleeve; 15, guide pipe; 16, flange plate; 17, threaded hole; 18, connecting hole; 19, connecting screw; 20, insertion block; 21, insertion slot; 22, rubber pad; 23, transition block; 24, through hole; 25, rubber ring; 26, sealing block; 27, first taper surface; 28, second taper surface; 29, sealing ring; 30, sealing groove; 31, sealing ring. DETAILED DESCRIPTION

[0028] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0030] In the present application, unless otherwise specified, the directions used such as "up, down" are generally with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are generally with respect to the left and right shown in the drawings; "inner, outer" refer to the inner and outer with respect to the contour of each component itself, but the above directional words are not used to limit the present application.

[0031] Please refer to Figures 1-5 A water leakage prevention fire valve, comprising a valve body 1, the upper end of the valve body 1 is provided with a standpipe 2, the inner wall of the standpipe 2 is fixedly provided with a baffle 3, the middle position of the baffle 3 is slidably provided with a sliding rod 4, the bottom of the sliding rod 4 is provided with a blocking plug 5, the upper end of the sliding rod 4 penetrates through the baffle 3 and is provided with an abutting block 6, the reset spring 7 is fixedly arranged between the abutting block 6 and the baffle 3, the upper end of the standpipe 2 is provided with a valve cover 8, the middle position of the valve cover 8 is provided with a threaded rod 9, the threaded rod 9 is threadedly connected with the valve cover 8, the bottom of the threaded rod 9 is rotatably provided with a top block 10, the upper end is fixedly provided with a hand wheel 11, both ends of the valve body 1 are provided with external pipes 12, one end of the external pipes 12 is provided with sleeves 13, the outer wall diameter of the blocking plug 5 is equal to the inner wall diameter of the standpipe 2.

[0032] In the embodiment, the inner part of the sleeve 13 is movably provided with a mounting sleeve 14, the outer wall of the mounting sleeve 14 is fixedly provided with a guide pipe 15, one end of the guide pipe 15 is provided with a flange plate 16, the outer wall of the sleeve 13 and the upper and lower sides are provided with threaded holes 17, the outer wall of the mounting sleeve 14 is correspondingly provided with connecting holes 18, the inner part of the threaded holes 17 and the connecting holes 18 are provided with connecting screws 19, one side of the mounting sleeve 14 is fixedly provided with a plug-in block 20, the inner wall of the sleeve 13 is correspondingly provided with a plug-in groove 21, the plug-in block 20 is located in the inner part of the plug-in groove 21, and the connecting position of the sleeve 13 and the mounting sleeve 14 is provided with a rubber pad 22.

[0033] More specifically, the user can rotate the hand wheel 11 to drive the threaded rod 9 to lift the top block 10, so that it is separated from the abutting block 6, at this time the return spring 7 will be stretched to lift the plug 5, so that the valve is in an open state, at the same time the sealing ring 29 on the upper end of the plug 5 will enter the sealing groove 30 at the lower end of the baffle 3, so as to shield the connecting position of the threaded rod 9 and the baffle 3, to prevent the phenomenon of water leakage, when the flange plate 16 needs to be replaced, the mounting sleeve 14 and the sleeve 13 can be disassembled by disassembling the connecting screw 19, at this time the flange plate 16 can be disassembled to replace it, thereby increasing the flexibility of the device during installation, to facilitate connection with different types of external pipelines, and by setting the plug-in block 20 and the plug-in groove 21, the sealing property of the connecting position of the mounting sleeve 14 and the sleeve 13 can be increased, to prevent the problem of water leakage.

[0034] Please refer to Figures 2-4 , as an embodiment for increasing the sealing property between the plug 5 and the rubber ring 25: the middle position of the valve body 1 is fixedly provided with a transition block 23, the upper end surface of the transition block 23 is provided with a through hole 24, the inner part of the through hole 24 is provided with a rubber ring 25, the bottom of the plug 5 is fixedly provided with a sealing block 26, the sealing block 26 can enter the inner part of the rubber ring 25, the inner wall of the rubber ring 25 and the upper end is provided with a first taper surface 27, the outer wall of the sealing block 26 is correspondingly provided with a second taper surface 28, and the inclination of the first taper surface 27 and the second taper surface 28 is equal.

[0035] Specifically, when the sealing block 26 at the bottom of the plug 5 descends into the inner part of the rubber ring 25, at this time the second taper surface 28 on the outer wall of the sealing block 26 will contact and abut against the first taper surface 27 on the inner wall of the rubber ring 25, to increase the sealing property of the connecting position of the plug 5 and the transition block 23, to prevent the phenomenon of water flow after closing.

[0036] Please refer to Figure 3 and Figure 4As a further embodiment for increasing the sealing between the baffle 3 and the blocking plug 5, a sealing ring 29 is fixed to the upper end surface of the blocking plug 5, a sealing groove 30 is formed in the lower end surface of the baffle 3, the sealing ring 29 is located inside the sealing groove 30, and a sealing ring 31 is arranged at the connecting position of the sealing ring 29 and the sealing groove 30.

[0037] Specifically, when the valve is in an open state, the sealing between the baffle 3 and the blocking plug 5 can be increased to prevent water from leaking from the connecting position of the threaded rod 9.

[0038] In summary, when the overall device is in use: the user can rotate the hand wheel 11 to drive the threaded rod 9 to lift the top block 10, so that it is separated from the abutting block 6, at this time the return spring 7 will be stretched to lift the blocking plug 5, so that the valve is in an open state, at the same time the sealing ring 29 on the upper end of the blocking plug 5 will also enter the sealing groove 30 at the lower end of the baffle 3, so as to shield the connecting position of the threaded rod 9 and the baffle 3, preventing the phenomenon of water leakage, when it is necessary to replace the flange plate 16, the sleeve 13 and the mounting sleeve 14 can be disassembled by disassembling the connecting screw 19, at this time the flange plate 16 can be disassembled to replace it, thereby increasing the flexibility of the device during installation, to facilitate connection with different models of external pipelines, and by arranging the plug-in block 20 and the plug-in groove 21, the sealing of the connecting position of the mounting sleeve 14 and the sleeve 13 can be increased, preventing the problem of water leakage, when the sealing block 26 at the bottom of the blocking plug 5 descends into the rubber ring 25, at this time the second taper 28 on the outer wall of the sealing block 26 will contact the first taper 27 on the inner wall of the rubber ring 25, and abut each other, to increase the sealing of the connecting position of the blocking plug 5 and the transition block 23, preventing the phenomenon of water flow after closing.

[0039] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection, or other known connection methods, which will not be described one by one, and the welding is preferred for the fixed connection mentioned above. Although embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A water-tight fire valve comprising a valve body (1) characterized by: The upper end of the valve body (1) is provided with a standpipe (2), the inner wall of the standpipe (2) is fixedly provided with a baffle (3), the middle position of the baffle (3) is slidably provided with a sliding rod (4), the bottom of the sliding rod (4) is provided with a blocking plug (5), the upper end of the sliding rod (4) penetrates through the baffle (3) and is provided with a resisting block (6), the resisting block (6) and the baffle (3) are fixedly provided with a reset spring (7), the upper end of the standpipe (2) is provided with a valve cover (8), the middle position of the valve cover (8) is provided with a threaded rod (9), the threaded rod (9) is threadedly connected with the valve cover (8), the bottom of the threaded rod (9) is rotatably provided with a top block (10), the upper end is fixedly provided with a hand wheel (11), both ends of the valve body (1) are provided with an external connecting pipe (12), one end of the external connecting pipe (12) is provided with a sleeve (13).

2. A fire valve according to claim 1, wherein: The inside of the sleeve (13) is movably provided with a mounting sleeve (14), the outer wall of the mounting sleeve (14) is fixedly provided with a guide pipe (15), one end of the guide pipe (15) is provided with a flange plate (16), the outer wall of the sleeve (13) and the upper and lower sides are provided with threaded holes (17), the outer wall of the mounting sleeve (14) is correspondingly provided with connecting holes (18), the inside of the threaded holes (17) and the connecting holes (18) is provided with connecting screws (19).

3. A fire valve according to claim 2, wherein: One side of the mounting sleeve (14) is fixedly provided with a plug-in block (20), the inner wall of the sleeve (13) is correspondingly provided with a plug-in groove (21), the plug-in block (20) is located in the inside of the plug-in groove (21), the connecting position of the sleeve (13) and the mounting sleeve (14) is provided with a rubber pad (22).

4. The water-tight fire valve of claim 1, wherein: The middle position of the valve body (1) is fixedly provided with a transition block (23), the upper end face of the transition block (23) is provided with a through hole (24), the inside of the through hole (24) is provided with a rubber ring (25), the bottom of the blocking plug (5) is fixedly provided with a sealing block (26), the sealing block (26) can enter the inside of the rubber ring (25).

5. A fire valve according to claim 4, wherein: The inner wall of the rubber ring (25) and the upper end is provided with a first taper surface (27), the outer wall of the sealing block (26) is correspondingly provided with a second taper surface (28), the inclination of the first taper surface (27) and the second taper surface (28) is equal.

6. A fire valve according to claim 1, wherein: The outer wall diameter of the blocking plug (5) is equal to the inner wall diameter of the standpipe (2).

7. The water-tight fire valve of claim 1, wherein: The upper end face of the blocking plug (5) is fixedly provided with a sealing ring (29), the lower end face of the baffle (3) is provided with a sealing groove (30), the sealing ring (29) is located in the inside of the sealing groove (30).

8. A fire valve according to claim 7, wherein: The connecting position of the sealing ring (29) and the sealing groove (30) is provided with a sealing ring (31).

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