Fire-fighting signal butterfly valve with alarm device

Abstract

The utility model relates to the field of fire-fighting signal butterfly valves, and discloses a fire-fighting signal butterfly valve with an alarm device, which comprises a valve body, the top of the valve body is fixedly connected with a valve cylinder, the top of the valve cylinder is fixedly connected with a valve seat, and the inside of the valve seat is rotatably connected with a valve rod which penetrates through the valve cylinder and extends into the valve body. A butterfly plate located in the valve body is fixedly connected to the outer side of the valve rod, a worm gear is fixedly connected to the outer side of the valve rod, a worm meshed with the worm gear is rotationally connected to the interior of the valve seat, and a contact block is fixedly connected to the outer side of the valve rod. The interior of the valve seat is fixedly connected with a reaction box corresponding to the contact block, and the outer side of the valve rod is fixedly connected with a rotating rod penetrating through and extending to the outer side of the valve seat. The fire-fighting signal butterfly valve with the alarm device has the advantages that the opening and closing states of the butterfly valve can be conveniently observed, and an alarm is given when the butterfly valve is closed.

Description

Technical Field

[0001] The utility model relates to the field of fire-fighting signal butterfly valves, in particular to a fire-fighting signal butterfly valve with an alarm device. Background Technique

[0002] The fire-fighting signal butterfly valve is a valve that plays a key role in the fire-fighting system. It is mainly used to control the water flow to ensure the supply of fire-fighting water. The fire-fighting signal butterfly valve has the advantages of being small, light, simple in structure, labor-saving in operation, completely sealed, adaptable to various media, good in regulation performance, and long in service life. The fire-fighting signal butterfly valve is widely used in the pipelines of systems such as petroleum, chemical industry, food, medicine, papermaking, hydropower, ships, water supply and drainage, smelting, and energy, and is especially suitable for high-rise building fire-fighting systems and other pipeline systems that need to display the opening and closing states of valves.

[0003] The main function of the fire-fighting signal butterfly valve in the fire-fighting system is to ensure that the valve is in the open state during daily use. If the valve is accidentally operated by someone and closed, it will affect the normal use of fire extinguishing in case of a sudden fire. Most of the butterfly valves currently on the market are controlled by personnel through regular inspections, and manual inspections have certain errors and cannot effectively ensure the opening and closing states of the butterfly valve. Therefore, a fire-fighting signal butterfly valve with an alarm device is proposed to solve the above problems. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a fire-fighting signal butterfly valve with an alarm device, which has the advantages of being able to conveniently observe the opening and closing states of the butterfly valve and giving an alarm when the butterfly valve is closed, and solves the problem that the main function of the fire-fighting signal butterfly valve in the fire-fighting system is to ensure that the valve is in the open state during daily use. If the valve is accidentally operated by someone and closed, it will affect the normal use of fire extinguishing in case of a sudden fire. Most of the butterfly valves currently on the market are controlled by personnel through regular inspections, and manual inspections have certain errors and cannot effectively ensure the opening and closing states of the butterfly valve.

[0006] (II) Technical Solutions

[0007] The technical solution of the present utility model to solve the above technical problems is as follows: A fire signal butterfly valve with an alarm device, including a valve body, a valve barrel is fixedly connected to the top of the valve body, a valve seat is fixedly connected to the top of the valve barrel, a valve stem is rotatably connected inside the valve seat and extends through the valve barrel and into the valve body, a butterfly plate located inside the valve body is fixedly connected to the outside of the valve stem, a worm gear is fixedly connected to the outside of the valve stem, a worm is rotatably connected inside the valve seat and meshes with the worm gear, a contact block is fixedly connected to the outside of the valve stem, a reaction box corresponding to the contact block is fixedly connected inside the valve seat, a rotating rod is fixedly connected to the outside of the valve stem and extends through and outside the valve seat, and an indicating needle is fixedly connected to the outside of the rotating rod.

[0008] The beneficial effects of the present utility model are:

[0009] The fire signal butterfly valve with an alarm device has the advantages of being able to conveniently observe the opening and closing state of the butterfly valve and giving an alarm when the butterfly valve is closed.

[0010] On the basis of the above technical solution, the present utility model can be further improved as follows.

[0011] Further, a protective frame located outside the indicating needle is fixedly connected to the top of the valve seat, a glass panel is arranged inside the protective frame, and an indicating line is arranged on the top surface of the valve seat.

[0012] The beneficial effect of adopting the above further solution is that it can directly observe the opening and closing angle of the butterfly plate, preventing the failure of the electrical signal and not knowing whether the butterfly plate is in the open state.

[0013] Further, a handwheel fixedly connected to the worm is fixedly connected to the outside of the valve seat, and handles are fixedly connected to both the left and right sides of the handwheel.

[0014] The beneficial effect of adopting the above further solution is that it can rotate and adjust the butterfly plate, and the opening angle of the butterfly plate can be initially observed through the direction of the handle.

[0015] Further, the contact block includes a rotating disk fixedly connected to the outside of the valve stem, two symmetrically distributed touch rods are fixedly connected to the outside of the rotating disk, and first metal conductive sheets are arranged on the outside of both touch rods.

[0016] The beneficial effect of adopting the above further solution is that the first metal conductive sheets outside the two touch rods can rotate to confirm whether the butterfly plate is open or closed.

[0017] Further, a junction box is fixedly connected inside the valve seat of the reaction box. An extension base is fixedly connected to the outside of the junction box, and a second metal conductive sheet is fixedly connected inside the extension base.

[0018] The beneficial effect of adopting the above further solution is that it can detect and upload the signal of whether the butterfly plate is opened, facilitating the monitoring of the position of the butterfly plate at any time.

[0019] Further, the extension base is arranged in a U shape, and the maximum rotation radius of the contact block is greater than the distance from the extension base to the axis of the valve stem.

[0020] The beneficial effect of adopting the above further solution is that it can make the second metal conductive sheet contact the first metal conductive sheet to confirm the open state of the butterfly plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front structural schematic diagram of the present invention;

[0022] Figure 2 is a top structural schematic diagram of the present invention;

[0023] Figure 3 is a structural schematic diagram of the valve stem of the present invention;

[0024] Figure 4 is a structural schematic diagram of the contact block of the present invention.

[0025] In the figure: 1, valve body; 2, valve barrel; 3, valve seat; 4, valve stem; 5, butterfly plate; 6, worm gear; 7, worm; 8, contact block; 81, rotating disc; 82, touch rod; 9, reaction box; 91, junction box; 92, extension base; 10, rotating rod; 11, indicating needle; 12, protective frame; 13, glass panel; 14, handwheel; 15, handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Hereinafter, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] In the embodiment, by Figures 1-4Provided is a fire signal butterfly valve with an alarm device. The utility model includes a valve body 1. A valve barrel 2 is fixedly connected to the top of the valve body 1. A valve seat 3 is fixedly connected to the top of the valve barrel 2. A valve rod 4 is rotatably connected inside the valve seat 3 and extends through the valve barrel 2 and into the interior of the valve body 1. A butterfly plate 5 is fixedly connected to the outer side of the valve rod 4 inside the valve body 1. A worm gear 6 is fixedly connected to the outer side of the valve rod 4. A worm 7 that meshes with the worm gear 6 is rotatably connected inside the valve seat 3. A contact block 8 is fixedly connected to the outer side of the valve rod 4. A reaction box 9 corresponding to the contact block 8 is fixedly connected inside the valve seat 3. A rotating rod 10 that penetrates and extends to the outside of the valve seat 3 is fixedly connected to the outer side of the valve rod 4. An indicating needle 11 is fixedly connected to the outer side of the rotating rod 10.

[0028] Among them, a protective frame 12 is fixedly connected to the top of the valve seat 3 outside the indicating needle 11. A glass panel 13 is arranged inside the protective frame 12. An indicating line is arranged on the top surface of the valve seat 3.

[0029] In this embodiment, during actual use, after the valve rod 4 rotates, the rotating rod 10 will also drive the indicating needle 11 to rotate, and by comparing the labels on the indicating line, the opening and closing angle of the butterfly plate 5 can be prompted. The protective frame 12 and the glass panel 13 can block the outside of the indicating line and the indicating needle 11, preventing dust accumulation from affecting rotation while not preventing observation of the inside.

[0030] Among them, a handwheel 14 fixedly connected to the worm 7 is fixedly connected to the outside of the valve seat 3. Handles 15 are fixedly connected to both the left and right sides of the handwheel 14.

[0031] In this embodiment, during actual use, the combined rotation of the worm gear 6 and the worm 7 can only be rotated through the handwheel 14 and will not rotate reversely under the scouring of water flow on the butterfly plate 5. The combined rotation of the worm gear 6 and the worm 7 requires a certain effort. With the assistance of the handles 15, it is not easy to slip, making its rotation easier. And when the butterfly plate 5 is opened, the handles 15 are on both sides of the handwheel 14. If the rotation angle of the butterfly plate 5 changes, the orientations of the two handles 15 will tilt to a certain extent, making it easier for the inspection personnel to visually observe.

[0032] Among them, the contact block 8 includes a rotating disk 81 fixedly connected to the outer side of the valve rod 4. Two symmetrically distributed touch rods 82 are fixedly connected to the outer side of the rotating disk 81. First metal conductive sheets are arranged on the outer sides of the two touch rods 82.

[0033] In this embodiment, during the actual use process, when the valve stem 4 rotates, the rotating disc 81 will also be driven to rotate. At this time, the touch rod 82 will also rotate. The two touch rods 82 correspond to the two sides of the butterfly plate 5 when it is closed. The width of the touch rod 82 can be appropriately increased or decreased to change the detection range of the position of the butterfly plate 5. When the widths of the two touch rods 82 and the first metal conductive sheet increase, the contact time when the two metal conductive sheets rotate increases, so that the butterfly plate 5 will trigger an alarm when it is closed to a certain angle, to ensure that the butterfly plate 5 remains at a suitable angle and ensure that the water flow passage space is within a reasonable range.

[0034] Among them, the reaction box 9 includes a junction box 91 fixedly connected inside the valve seat 3. The outside of the junction box 91 is fixedly connected with an extension seat 92, and a second metal conductive sheet is fixedly connected inside the extension seat 92.

[0035] In this embodiment, during the actual use process, the junction box 91 is connected to an alarm or a real-time detector through an electrical signal, and the second metal conductive sheet in the extension seat 92 is connected to the junction box 91 through a wire.

[0036] Among them, the extension seat 92 is arranged in a U shape, and the maximum rotation radius of the contact block 8 is greater than the distance from the extension seat 92 to the axis of the valve stem 4.

[0037] In this embodiment, during the actual use process, after the butterfly plate 5 rotates and closes, the first metal conductive sheet will rotate into the extension seat 92. When the two metal conductive sheets come into contact, the junction box 91 transmits the signal through a wire, and under a preset program, the alarm in the control room will give an alarm to remind the monitoring personnel in the control room to check it, and it can also be connected to a monitoring host to monitor information such as the closing time of the butterfly plate 5.

[0038] Working principle:

[0039] After the fire signal butterfly valve is installed, the worm 7 can be rotated through the handwheel 14, so that the meshing worm gear 6 rotates, and then drives the butterfly plate 5 to rotate to control the opening and closing of the butterfly plate 5 to the valve body 1. When the butterfly plate 5 is just in the closed state, the indicating needle 11 will give an indication, and the indicating line it points to can be observed through the glass panel 13. At the same time, the touch rod 82 will be inside the extension seat 92. At this time, an electrical signal will be transmitted to the control room to give a reminder. When the butterfly plate 5 rotates, the touch rod 82 slowly moves away from the extension seat 92, then the butterfly plate 5 is in the open state, but at this time the opening angle of the butterfly plate 5 is small. If the width of the touch rod 82 is increased and the contact distance with the extension seat 92 is increased, then after the touch rod 82 moves away from the extension seat 92 and the alarm stops alarming, the opening angle of the butterfly plate 5 will become larger, and this angle can be set according to the specified range of the opening of the butterfly plate 5.

[0040] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire signal butterfly valve with an alarm device, comprising a valve body (1), characterized in that: The top of the valve body (1) is fixedly connected with a valve barrel (2), the top of the valve barrel (2) is fixedly connected with a valve seat (3), a valve rod (4) that penetrates through the valve barrel (2) and extends into the valve body (1) is rotatably connected inside the valve seat (3), a butterfly plate (5) located inside the valve body (1) is fixedly connected to the outer side of the valve rod (4), a worm gear (6) is fixedly connected to the outer side of the valve rod (4), a worm (7) that meshes with the worm gear (6) is rotatably connected inside the valve seat (3), a contact block (8) is fixedly connected to the outer side of the valve rod (4), a reaction box (9) corresponding to the contact block (8) is fixedly connected inside the valve seat (3), a rotating rod (10) that penetrates through and extends to the outside of the valve seat (3) is fixedly connected to the outer side of the valve rod (4), and an indicating needle (11) is fixedly connected to the outer side of the rotating rod (10).

2. The fire signal butterfly valve with an alarm device according to claim 1, wherein: A protective frame (12) located outside the indicating needle (11) is fixedly connected to the top of the valve seat (3), a glass panel (13) is arranged inside the protective frame (12), and an indicating line is arranged on the top surface of the valve seat (3).

3. The fire signal butterfly valve with an alarm device according to claim 1, characterized in that: A handwheel (14) fixedly connected to the worm (7) is fixedly connected to the outside of the valve seat (3), and handles (15) are fixedly connected to both the left and right sides of the handwheel (14).

4. A fire signal butterfly valve with an alarm device according to claim 1, characterized in that: The contact block (8) includes a rotating disk (81) fixedly connected to the outer side of the valve rod (4), two touch rods (82) that are symmetrically distributed are fixedly connected to the outer side of the rotating disk (81), and first metal conductive sheets are arranged on the outer sides of the two touch rods (82).

5. The fire signal butterfly valve with an alarm device according to claim 1, characterized in that: The reaction box (9) includes a wiring box (91) fixedly connected inside the valve seat (3), an extension seat (92) is fixedly connected to the outside of the wiring box (91), and a second metal conductive sheet is fixedly connected inside the extension seat (92).

6. The fire signal butterfly valve with an alarm device according to claim 5, characterized in that: The extension seat (92) is arranged in a U shape, and the maximum rotation radius of the contact block (8) is greater than the distance from the extension seat (92) to the axis of the valve rod (4).

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