Water leakage prevention device for fire pump valve

Abstract

The utility model relates to the technical field of water leakage prevention devices, in particular to a water leakage prevention device for a fire pump valve, which comprises a leakage prevention component, a water leakage prevention component and a water leakage prevention component, the leakage prevention component is used for preventing leakage at the joint of two flange plates at the end parts of a fire pump connecting pipe and a valve connecting pipe, and the leakage prevention component comprises two symmetrical semicircular sealing plates; sealing grooves matched with the two flange plates are formed in the inner ring faces of the two semicircular sealing plates, and water stop strips are fixedly arranged on the annular inner walls of the sealing grooves. The alarm assembly is used for giving an alarm when water leaks, and the alarm assembly comprises an annular groove formed in the outer annular face of the water stop strip. Through the arrangement of the leakage-proof assembly, in the actual use process of the device, when water leaks at the two flange plates, leaked water can make contact with the water stop strip, at the moment, the water stop strip swells when meeting water, the gap between the two flange plates can be effectively blocked, and therefore the purpose of preventing water leakage is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water leakage prevention devices, in particular to a water leakage prevention device for a fire-fighting water pump valve. Background Art

[0002] Fire pumps refer to special fire pumps or ordinary clean water pumps that meet national standards. Fire pump valves are connected to fire pumps through flange bolts.

[0003] In the prior art, a Chinese patent with a publication number of CN220228215U discloses a leak-proof device for pump-valve joints, which adopts a scheme of "including a valve body connecting pipe, a socket plate tightly attached to the outer wall of the valve body connecting pipe, a locking bolt socketed at the inner position of the socket plate, a fixing plate fixed at the lower end position of the locking bolt, a connecting arm connecting the two socket plates, and a socket rod that can extend the length of the connecting arm, the locking bolt can be rotated to make the fixing plate close to the socket plate, the socket plate is threadedly socketed at the outer wall position of the locking bolt, and the connecting arm can be extended in length by the socket rod at the inner position". This scheme fastens the valve body connecting pipe and the pump connecting pipe at their outer wall positions through the socket plate and the fixing plate, and drives the fixing plate to move by rotating the locking bolt, so that the fixing plate and the socket plate are tightly fitted with the pump connecting pipe and the valve body connecting pipe, thereby preventing leakage at the joint.

[0004] However, the above scheme still has some shortcomings. For example, in the actual leakage prevention process, it only uses a sealing ring to prevent leakage at the gap. When the sealing ring ages after long-term use, it still cannot effectively prevent leakage. Moreover, when leakage occurs at the flange connection between the valve body and the pump connecting pipe, the device cannot provide effective warning, resulting in water leakage even when the sealing ring is damaged.

[0005] In view of this, the utility model proposes a fire-fighting water pump valve anti-leakage device. Utility Model Content

[0006] The utility model aims to provide a fire water pump valve anti-leakage device to solve the problems raised in the above background technology.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire pump valve anti-leakage device, comprising:

[0008] A leak-proof component, which is used to prevent leakage at two flange connections at the ends of a fire pump connecting pipe and a valve connecting pipe, and the leak-proof component comprises two symmetrical semicircular ring-shaped sealing plates, and the inner ring surfaces of the two semicircular ring-shaped sealing plates are provided with sealing grooves adapted to the two flanges, and the annular inner wall of the sealing groove is fixed with a water stop strip;

[0009] An alarm component is used to give an alarm in case of water leakage, the alarm component includes an annular groove formed on the outer ring surface of the water stop strip, and a mounting rod is fixedly provided on the inner arc surface of the sealing groove on the semicircular ring sealing plate, and the end of the mounting rod extends to the inside of the annular groove and is fixedly provided with a pressure sensing switch, the alarm component also includes a mounting groove formed on the outer ring surface of the semicircular ring sealing plate, and a transparent plastic plate fixedly provided on the inner wall of the mounting groove, and two laser alarm lights electrically connected to the pressure sensing switch are arranged inside the mounting groove.

[0010] As a preferred technical solution, both inner walls of the sealing groove on the semicircular ring sealing plate are fixed with arc-shaped sealing gaskets which are slidably connected to the outer surfaces of the two flanges respectively, and the material of the arc-shaped sealing gaskets is elastic rubber.

[0011] As a preferred technical solution, corresponding fixing blocks are fixed on the two end surfaces of the two semicircular ring sealing plates, and connecting holes are opened on the surfaces of the two corresponding fixing blocks, locking bolts are inserted into the inner walls of the connecting holes, and locking nuts are threadedly connected to the surfaces of the locking bolts.

[0012] As a preferred technical solution, an installation box is fixedly provided on the inner wall of the installation groove, and a rotating shaft extending to the outer surface of the installation box is rotatably provided on the inner wall of the installation box.

[0013] As a preferred technical solution, a mounting plate is fixedly provided at one end of the rotating shaft away from the mounting box, and the two laser warning lights are symmetrically and obliquely arranged on the outer surface of the mounting plate.

[0014] As a preferred technical solution, a small motor is fixedly provided on the inner wall of the installation box, and mutually meshing bevel gears are fixedly provided on the output end of the small motor and the surface of the rotating shaft.

[0015] As a preferred technical solution, two symmetrical charging power supplies are fixedly provided on the inner wall of the installation groove, and the small motor, laser warning light and pressure sensing switch are electrically connected to the charging power supply through wires, and the small motor and the pressure sensing switch are electrically connected through wires.

[0016] Beneficial Effects

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. The utility model provides a leak-proof component so that when water leaks from the two flanges during actual use, the leaked water can contact the water stop strip, and the water stop strip expands when it encounters water, which can effectively block the gap between the two flanges, thereby achieving the purpose of leak-proofing.

[0019] 2. The utility model sets an alarm component. When a leak occurs and the water stop strip expands, the pressure sensing switch automatically controls the small motor and the laser alarm light to rotate, so that personnel can know at the first time that there is a leak at the connection between the fire pump and the valve, thereby effectively solving the defect of the prior art that an alarm cannot be issued when a leak occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0023] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 4 It is a schematic diagram of the side section structure of the utility model;

[0025] Figure 5 For this utility model Figure 4 Enlarged structural diagram at B in the middle.

[0026] In the figure:

[0027] 100, leak-proof assembly; 101, semicircular ring sealing plate; 102, water stop strip; 103, arc-shaped sealing gasket; 104, fixing block; 105, locking bolt; 106, locking nut;

[0028] 200. Fire pump connecting pipe;

[0029] 300, valve connecting pipe;

[0030] 400, flange;

[0031] 500, alarm component; 501, mounting rod; 502, pressure sensing switch; 503, transparent plastic plate; 504, laser alarm light; 505, mounting box; 506, rotating shaft; 507, mounting plate; 508, small motor; 509, bevel gear; 5010, charging power supply. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Embodiment 1

[0034] According to the attached Figure 1-5 As shown, the embodiment of the utility model provides a fire pump valve anti-leakage device, comprising:

[0035] The anti-leakage component 100 is used to prevent leakage at the connection of two flanges 400 at the ends of the fire pump connecting pipe 200 and the valve connecting pipe 300. The anti-leakage component 100 includes two symmetrical semicircular ring-shaped sealing plates 101, and the inner annular surfaces of the two semicircular ring-shaped sealing plates 101 are both provided with sealing grooves adapted to the two flanges 400, and the annular inner wall of the sealing groove is fixed with a water stop strip 102;

[0036] The inner walls on both sides of the sealing groove on the semicircular ring sealing plate 101 are fixed with arc-shaped sealing gaskets 103 which are slidably connected to the outer surfaces of the two flanges 400 respectively. The arc-shaped sealing gaskets 103 are made of elastic rubber and can effectively seal between the outer surface of the flange 400 and the inner wall of the sealing groove.

[0037] Corresponding fixing blocks 104 are fixedly provided on the surfaces of both ends of the two semicircular ring-shaped sealing plates 101, and the surfaces of the two corresponding fixing blocks 104 are provided with connecting holes, the inner walls of the connecting holes are plugged with locking bolts 105, and the surfaces of the locking bolts 105 are threadedly connected with locking nuts 106, so that the two semicircular ring-shaped sealing plates 101 can be quickly and effectively installed.

[0038] In this embodiment, by providing a leak-proof component 100, the device can, during actual use, put two semicircular ring-shaped sealing plates 101 on the two flanges 400, and lock them through locking bolts 105 and locking nuts 106, so that the two arc-shaped sealing gaskets 103 inside the semicircular ring-shaped sealing plates 101 are pressed against the two side surfaces of the flanges 400, and at the same time, the water stop strip 102 presses the gap between the two flanges 400. When water leakage occurs at the two flanges 400, the leaked water can contact the water stop strip 102. At this time, the water stop strip 102 expands when it encounters water, and can effectively seal the gap between the two flanges 400, thereby achieving the purpose of preventing water leakage.

[0039] Embodiment 2

[0040] On the basis of the first embodiment, and different from the first embodiment,

[0041] A fire pump valve anti-leakage device, further comprising:

[0042] The alarm component 500 is used to give an alarm in case of water leakage. The alarm component 500 includes an annular groove formed on the outer ring surface of the water stop strip 102, and a mounting rod 501 is fixedly provided on the inner arc surface of the sealing groove on the semicircular ring sealing plate 101, and the end of the mounting rod 501 extends to the inside of the annular groove and is fixedly provided with a pressure sensing switch 502. The alarm component 500 also includes a mounting groove formed on the outer ring surface of the semicircular ring sealing plate 101, and a transparent plastic plate 503 fixedly provided on the inner wall of the mounting groove. Two laser alarm lights 504 electrically connected to the pressure sensing switch 502 are provided inside the mounting groove, wherein the laser alarm light 504 is a common ray lamp on the market, and the lasers emitted by the two laser alarm lights 504 are different in color.

[0043] An installation box 505 is fixedly disposed on the inner wall of the installation slot, and a rotating shaft 506 extending to the outer surface of the installation box 505 is rotatably disposed on the inner wall of the installation box 505 .

[0044] A mounting plate 507 is fixedly disposed at one end of the rotating shaft 506 away from the mounting box 505 , and two laser warning lights 504 are symmetrically and obliquely disposed on the outer surface of the mounting plate 507 .

[0045] A small motor 508 is fixedly mounted on the inner wall of the mounting box 505 , and mutually meshing bevel gears 509 are fixedly mounted on the output end of the small motor 508 and the surface of the rotating shaft 506 .

[0046] Two symmetrical charging power supplies 5010 are fixedly installed on the inner wall of the installation groove. The small motor 508, the laser warning light 504 and the pressure sensing switch 502 are all electrically connected to the charging power supply 5010 through wires, and the small motor 508 is electrically connected to the pressure sensing switch 502 through wires.

[0047] In this embodiment, by setting up the alarm component 500, when water leakage occurs and the water stop strip 102 expands, the water stop strip 102 can squeeze the pressure sensing switch 502, so that the pressure sensing switch 502 automatically controls the small motor 508 and the laser alarm light 504 to work. The rotation of the small motor 508 drives the rotating shaft 506 to rotate under the action of the two bevel gears 509. The rotation of the rotating shaft 506 drives the mounting plate 507 to rotate, thereby driving the two inclined laser alarm lights 504 to rotate, so that personnel can know the leakage at the connection between the fire pump and the valve at the first time, and it is convenient for personnel to replace and repair it in time, thereby effectively solving the defect that the existing technology cannot alarm when there is a leakage.

[0048] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A fire pump valve anti-leakage device, characterized in that: include, A leak-proof component (100) is used to prevent leakage at the connection points of two flanges (400) at the ends of a fire pump connecting pipe (200) and a valve connecting pipe (300), wherein the leak-proof component (100) comprises two symmetrical semicircular ring-shaped sealing plates (101), and the inner annular surfaces of the two semicircular ring-shaped sealing plates (101) are both provided with sealing grooves adapted to the two flanges (400), and the annular inner walls of the sealing grooves are fixedly provided with water stop strips (102); An alarm component (500) is used to give an alarm when there is a water leak. The alarm component (500) comprises an annular groove formed on the outer annular surface of a water stop strip (102), and a mounting rod (501) is fixedly provided on the inner arc surface of the sealing groove on the semicircular ring-shaped sealing plate (101), and the end of the mounting rod (501) extends to the inside of the annular groove and is fixedly provided with a pressure sensing switch (502). The alarm component (500) also comprises an mounting groove formed on the outer annular surface of the semicircular ring-shaped sealing plate (101), and a transparent plastic plate (503) fixedly provided on the inner wall of the mounting groove. Two laser alarm lights (504) electrically connected to the pressure sensing switch (502) are provided inside the mounting groove.

2. A fire pump valve anti-leakage device according to claim 1, characterized in that: The inner walls on both sides of the sealing groove on the semicircular ring sealing plate (101) are fixedly provided with arc-shaped sealing gaskets (103) which are respectively slidably connected to the outer surfaces of the two flanges (400), and the material of the arc-shaped sealing gaskets (103) is elastic rubber.

3. A fire pump valve anti-leakage device according to claim 1, characterized in that: The two end surfaces of the two semicircular ring-shaped sealing plates (101) are fixedly provided with corresponding fixing blocks (104), and the surfaces of the two corresponding fixing blocks (104) are provided with connecting holes, the inner walls of the connecting holes are plugged with locking bolts (105), and the surfaces of the locking bolts (105) are threadedly connected with locking nuts (106).

4. A fire pump valve anti-leakage device according to claim 1, characterized in that: An installation box (505) is fixedly arranged on the inner wall of the installation groove, and a rotating shaft (506) extending to the outer surface of the installation box (505) is rotatably arranged on the inner wall of the installation box (505).

5. A fire pump valve anti-leakage device according to claim 4, characterized in that: A mounting plate (507) is fixedly provided at one end of the rotating shaft (506) away from the mounting box (505), and the two laser warning lights (504) are symmetrically and obliquely arranged on the outer surface of the mounting plate (507).

6. A fire pump valve anti-leakage device according to claim 5, characterized in that: A small motor (508) is fixedly mounted on the inner side wall of the installation box (505), and mutually meshing bevel gears (509) are fixedly mounted on the output end of the small motor (508) and the surface of the rotating shaft (506).

7. A fire pump valve anti-leakage device according to claim 6, characterized in that: Two symmetrical charging power supplies (5010) are fixedly arranged on the inner wall of the installation groove, and the small motor (508), the laser warning light (504) and the pressure sensing switch (502) are all electrically connected to the charging power supply (5010) via wires, and the small motor (508) is electrically connected to the pressure sensing switch (502) via wires.

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