Intelligent butterfly valve capable of quickly responding to fire-fighting signal

Abstract

The utility model relates to the related field of butterfly valves, in particular to an intelligent butterfly valve capable of quickly responding to fire-fighting signals, which comprises a valve body, a valve seat, a valve rod, a rotating plate, a second transmission plate, a second sliding rod, an induction sheet, a position sensor and the like. The induction piece and the position sensor are arranged in the valve seat, when the valve plate is opened and closed, the fan-shaped worm wheel drives the second sliding rod to move, the second sliding rod drives the induction piece to move synchronously when moving, and the position sensor detects the moving distance of the induction piece and transmits information to the control system. The opening and closing degree of the valve plate of the butterfly valve is accurately monitored, the working state of signal sending is monitored in real time, data are fed back to a control system, when it is detected that the displacement amount of an induction piece reaches a preset value, a fire alarm is given out, and by analyzing the data, the system can more quickly recognize the demand change and more quickly respond to a fire signal, so that the safety of the system is improved. Therefore, the state of the valve can be quickly adjusted, and intelligent control is achieved.

Description

Technical Field

[0001] The utility model relates to the field of butterfly valves, in particular to an intelligent butterfly valve that quickly responds to fire signals. Background Art

[0002] The signal butterfly valve is a throttling device suitable for high-rise building fire protection systems and other pipeline systems that need to display the valve switch status. It serves as a control element for the flow of pipeline media and has a signal feedback function. It combines the switching function of traditional butterfly valves with the needs of modern automation systems. When the valve is opened or closed, it can transmit the valve position status (usually fully open or fully closed) to the control system in the form of a signal through the built-in mechanical or electronic device, thereby realizing remote monitoring and automatic operation.

[0003] When the existing signal butterfly valve is closed, the trigger block on the butterfly valve needs to squeeze the switch contacts on the butterfly valve, and then transmit the signal to the control system. It is difficult to monitor the working status of the butterfly valve in real time and feed the data back to the control system. In particular, it is difficult to accurately monitor the opening and closing size of the butterfly valve plate, which is not conducive to the system to more quickly identify demand changes and quickly adjust the valve status. It is not conducive to more intelligent control of the signal butterfly valve, which reduces the practicality of the signal butterfly valve. Summary of the invention

[0004] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides an intelligent butterfly valve that quickly responds to fire signals to solve the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fast-response fire signal intelligent butterfly valve, comprising a valve body, a valve seat fixed on the top of the valve body, a valve plate movably installed in the valve body, a valve stem rotatably installed in the valve seat, and a worm rotatably installed in the valve seat. The valve stem movably penetrates the top of the valve body and is connected to the valve plate. A fan-shaped worm gear meshing with the worm is arranged outside the worm. The inner ring of the fan-shaped worm gear is connected to the outer top of the valve stem. A fixing frame is fixed on the inner rear end of the valve seat. A first slide bar and a second slide bar located at the rear end of the fan-shaped worm gear are movably installed in the fixing frame, and a rotating plate is rotatably installed in the fixing frame.

[0006] The first sliding rod is rotatably mounted on one end away from the fan-shaped worm gear, and the first transmission plate is rotatably connected to the rotating plate away from the rotating plate, and the connection between the first transmission plate and the rotating plate is a rotating connection point, wherein the ratio of the length from the rotating connection point to the fixed end of the rotating plate to the length from the rotating connection point to the free end of the rotating plate is greater than 1:2;

[0007] A second transmission plate is rotatably mounted on the free end of the rotating plate;

[0008] One end of the second transmission plate away from the rotating plate is rotatably connected to the second sliding rod;

[0009] A sensing sheet is installed on the side surface of the second slide bar, and a position sensor connected to the inner side of the fixing frame is arranged at the rear end of the sensing sheet. The displacement distance of the second slide bar is detected by the position sensor in cooperation with the sensing sheet.

[0010] Preferably, the worm movably penetrates the inner side of the valve seat, and after the worm passes through the side surface of the valve seat, it is connected to a handwheel arranged outside the valve seat.

[0011] Preferably, a round block is installed at the front end of the first sliding rod, and the round block is movably connected to the inner side of a strip-shaped positioning hole opened at the rear end of the fan-shaped worm gear.

[0012] Preferably, a group of first sliding rods, fixing frames, round blocks, strip-shaped positioning holes, first transmission plates, rotating plates, second transmission plates, second sliding rods, fixing rings, springs, induction plates and position sensors are respectively provided at the left and right ends of the rear end of the sector worm gear.

[0013] Preferably, a fixing ring is sleeved on each of the first sliding rod and the second sliding rod, and the two fixing rings are each connected to a fixing frame via a spring.

[0014] Beneficial effects of the utility model:

[0015] The utility model arranges a sensing plate and a position sensor in the valve seat. When the valve plate is opened or closed, a fan-shaped worm gear rotates, and the fan-shaped worm gear pushes the corresponding first slide bar to move. When the first slide bar moves, it increases the moving distance of the second slide bar through a transmission plate, a rotating plate and a second transmission plate. When the second slide bar moves, it drives the sensing plate to move synchronously. The position sensor detects the moving distance of the sensing plate and passes the information to the control system to accurately monitor the opening and closing size of the butterfly valve plate. The working status of the butterfly valve plate is obtained by real-time monitoring of the signal, and the data is fed back to the control system. When it is detected that the displacement of the sensing plate reaches a preset value, a fire alarm is issued. By analyzing these data, the system can identify demand changes more quickly and respond to fire signals more quickly, so as to quickly adjust the valve state and realize intelligent control. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the valve seat structure from a top view of the utility model;

[0018] Figure 3 It is a schematic diagram of the connection structure of the fixing frame of the utility model.

[0019] Among them: valve body-1, valve seat-2, valve stem-3, valve plate-4, handwheel-5, worm-6, fan-shaped worm gear-7, first slide bar-8, fixing frame-9, round block-10, strip positioning hole-11, first transmission plate-12, rotating plate-13, second transmission plate-14, second slide bar-15, fixing ring-16, spring-17, induction sheet-18, position sensor-19. DETAILED DESCRIPTION

[0020] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0021] like Figure 1 and Figure 2 As shown, the utility model provides a quick response fire signal intelligent butterfly valve, comprising a valve body 1, a valve seat 2 fixedly mounted on the top of the valve body 1, a valve plate 4 movably mounted in the valve body 1, and a valve stem 3 rotatably mounted in the valve seat 2. The valve stem 3 can horizontally rotate in the valve seat 2 and rotatably mount a worm 6 in the valve seat 2.

[0022] The valve stem 3 is movably connected to the valve plate 4 after passing through the top of the valve body 1. A fan-shaped worm wheel 7 meshing with the worm 6 is arranged outside the worm 6. The inner ring of the fan-shaped worm wheel 7 is connected to the top of the outer side of the valve stem 3. The worm 6 cooperates with the fan-shaped worm wheel 7 to drive the valve stem 3 to rotate synchronously, so that the valve stem 3 drives the valve plate 4 to rotate.

[0023] In this embodiment, the worm 6 movably penetrates the inner side of the valve seat 2, and after passing through the side surface of the valve seat 2, the worm 6 is connected to the hand wheel 5 provided outside the valve seat 2, so that the worm 6 can be driven to rotate synchronously by turning the hand wheel 5;

[0024] Specifically, the valve body 1 is installed in the fire protection system and the valve seat is displaced outside, and the two ends of the valve body 1 are respectively connected to the external fire protection pipes. During use, the signal butterfly valve is in a normally open state, so that the external fire protection water flows through the valve body 1.

[0025] like Figures 1 to 3 As shown, in this embodiment, a fixing frame 9 is locked and fixed to the inner rear end of the valve seat 2, and a first slide bar 8 and a second slide bar 15 located at the rear end of the fan-shaped worm gear 7 are movably installed in the fixing frame 9. The first slide bar 8 and the second slide bar 15 can slide horizontally back and forth in the fixing frame 9, and a rotating plate 13 is rotatably installed in the fixing frame 9;

[0026] The first sliding rod 8 is rotatably mounted on one end away from the fan-shaped worm gear 7, and the first transmission plate 12 is rotatably connected to the rotating plate 13. The connection point between the first transmission plate 12 and the rotating plate 13 is a rotating connection point, wherein the ratio of the length from the rotating connection point to the fixed end of the rotating plate 13 to the length from the rotating connection point to the free end of the rotating plate 13 is greater than 1:2;

[0027] A second transmission plate 14 is rotatably mounted on the free end of the rotating plate 13;

[0028] The second transmission plate 14 is rotatably connected to the second slide bar 15 at one end away from the rotating plate 13, so that the second transmission plate 14 pulls the second slide bar 15 to move horizontally in the fixing frame 9;

[0029] A sensing sheet 18 is installed on the side surface of the second slide bar 15. A position sensor 19 connected to the inner side of the fixing frame 9 is provided at the rear end of the sensing sheet 18. The displacement distance of the second slide bar 15 is detected by the position sensor 19 in cooperation with the sensing sheet 18.

[0030] In this embodiment, a round block 10 is installed at the front end of the first slide bar 8, and the round block 10 is movably connected to the inner side of the strip positioning hole 11 opened at the rear end of the fan-shaped worm gear 7. The strip positioning hole 11 cooperates with the round block 10 to provide positioning for the first slide bar 8, so that the first slide bar 8 can move more smoothly;

[0031] Among them, a group of first slide bar 8, fixing frame 9, round block 10, strip positioning hole 11, first transmission plate 12, rotating plate 13, second transmission plate 14, second slide bar 15, fixing ring 16, spring 17, induction sheet 18 and position sensor 19 are respectively arranged at the left and right ends of the rear end of the sector worm gear 7, so as to facilitate the simultaneous inspection of the opening and closing state of the valve plate 4;

[0032] In this embodiment, a fixing ring 16 is sleeved on the first slide bar 8 and the second slide bar 15, and the two fixing rings 16 are connected to the fixing frame 9 through a spring 17, so that the first slide bar 8 and the second slide bar 15 are reset by the elastic force of the spring 17;

[0033] Specifically, when the valve seat needs to be inspected and the signal butterfly valve is closed, the hand wheel 5 can be rotated to drive the worm 6 to rotate, the worm 6 drives the fan-shaped worm gear 7 to rotate, the fan-shaped worm gear 7 drives the valve stem 3 to rotate synchronously, and the valve stem 3 drives the valve plate 4 to rotate to realize the closing of the signal butterfly valve, and during the rotation of the fan-shaped worm gear 7, the corresponding first slide bar 8 on the rotating side is pushed to move horizontally, the first slide bar 8 drives the second slide bar 15 to move through the first transmission plate 12, the rotating plate 13 and the second transmission plate 14, and the second slide bar 15 drives the sensing plate 18 to move synchronously, and because the ratio of the length from the rotating connection point of the rotating plate 13 to the fixed end of the rotating plate 13 to the length from the rotating connection point to the free end of the rotating plate 13 is greater than 1:2, so that the first slide bar 8 cooperates with the first transmission plate 12, the rotating plate 13 and the second transmission plate 14 to amplify the displacement of the second slide bar 15 and the sensing plate 18, so that the position sensor 19 can more accurately process the displacement extrusion force of the sensing plate 18;

[0034] The position sensor 19 quickly detects the movement of the sensor plate 18 and transmits the signal to the control background. The control background responds quickly to remind someone that someone is adjusting the signal butterfly valve, and when the position sensor 19 detects that the displacement of the sensor plate 18 reaches a preset value, a fire alarm is issued. By analyzing the movement data of the sensor plate 18, the system can identify changes in demand more quickly and respond to fire signals more quickly. Different movement distances of the sensor plate 18 correspond to different opening and closing degrees of the valve plate 4, so as to quickly adjust the valve state and realize intelligent control.

[0035] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quick-response fire signal intelligent butterfly valve, comprising a valve body, a valve seat fixed on the top of the valve body, a valve plate movably installed in the valve body, a valve stem rotatably installed in the valve seat, and a worm rotatably installed in the valve seat. The valve stem movably passes through the top of the valve body and is connected to the valve plate. A fan-shaped worm gear meshing with the worm is arranged outside the worm, and the inner ring of the fan-shaped worm gear is connected to the outer top of the valve stem; It is characterized in that A fixing frame is fixedly mounted on the inner rear end of the valve seat, a first slide bar and a second slide bar located at the rear end of the fan-shaped worm gear are movably mounted in the fixing frame, and a rotating plate is rotatably mounted in the fixing frame; The first sliding rod is rotatably mounted on one end away from the fan-shaped worm gear, and the first transmission plate is rotatably connected to the rotating plate away from the rotating plate, and the connection between the first transmission plate and the rotating plate is a rotating connection point, wherein the ratio of the length from the rotating connection point to the fixed end of the rotating plate to the length from the rotating connection point to the free end of the rotating plate is greater than 1:2; A second transmission plate is rotatably mounted on the free end of the rotating plate; One end of the second transmission plate away from the rotating plate is rotatably connected to the second sliding rod; A sensing sheet is installed on the side surface of the second slide bar, and a position sensor connected to the inner side of the fixing frame is arranged at the rear end of the sensing sheet. The displacement distance of the second slide bar is detected by the position sensor in cooperation with the sensing sheet.

2. According to claim 1, a quick response fire signal intelligent butterfly valve is characterized by: The worm movably penetrates the inner side of the valve seat, and after passing through the side surface of the valve seat, the worm is connected with a hand wheel arranged outside the valve seat.

3. According to claim 1, a quick response fire signal intelligent butterfly valve is characterized by: A round block is installed at the front end of the first sliding rod, and the round block is movably connected to the inner side of a strip-shaped positioning hole opened at the rear end of the fan-shaped worm gear.

4. According to claim 3, a quick response fire signal intelligent butterfly valve is characterized in that: A group of first slide bars, fixing frames, round blocks, strip positioning holes, first transmission plates, rotating plates, second transmission plates, second slide bars, fixing rings, springs, induction sheets and position sensors are respectively arranged at the left and right ends of the rear end of the sector worm gear.

5. According to claim 1, the intelligent butterfly valve for quick response to fire signal is characterized in that: A fixing ring is sleeved on each of the first sliding rod and the second sliding rod, and each of the two fixing rings is connected to a fixing frame via a spring.

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