Fire valve with early warning indication function

Abstract

The invention discloses a fire-fighting valve with an early warning indication function, and belongs to the technical field of fire-fighting valves.The fire-fighting valve with the early warning indication function comprises a valve shell, the inner wall of the valve shell is fixedly connected with a slope plugging sleeve, and the top of the valve shell is fixedly connected with an integrated connecting bottom shell; a valve cover mechanism is installed on the integrated connecting bottom shell, a gate valve rod mechanism is arranged between the valve cover mechanism and the inclined face plugging sleeve, a limiting conduction mechanism is installed in the middle section of the gate valve rod mechanism, an alarm mechanism is installed between the two sides of the valve cover mechanism, and a clamping driving mechanism is arranged at the top of the gate valve rod mechanism. By designing the clamping driving mechanism, no influence is caused when a driving hand wheel is rotated, the situation that the valve is opened due to manual rotation is avoided, and by designing the alarm mechanism, an alarm can be given out by a worker, and the worker can handle the situation in time.

Description

Technical Field

[0001] The invention belongs to the technical field of fire valves, and in particular relates to a fire valve with an early warning indication function. Background Art

[0002] Fire valves are an important accessory for industrial and building pipeline control. They are composed of a valve body, an opening and closing mechanism, and a valve cover. Fire valves are key equipment in fire protection systems for controlling the flow of water, air or other fire extinguishing media. They are usually used in fire protection pipe networks, automatic sprinkler fire extinguishing systems, foam fire extinguishing systems, etc., to control the flow of fire extinguishing agents, start or stop fire protection equipment, etc. Common types of fire valves include: gate valves, ball valves, check valves, pressure reducing valves, electric valves, and pneumatic valves. The main function of fire valves is to ensure that fire extinguishing media can be supplied quickly and effectively in the event of a fire, to ensure the normal operation of the fire protection system, and to ensure that fire water, foam agents, etc. can be supplied to the fire scene in a timely and effective manner. At the same time, according to the situation of the fire, the valves are opened and closed automatically or manually to control the start and close of the fire protection system.

[0003] The fire valves in existing buildings are mostly placed in public areas for the sake of convenience and quick use. This may lead to someone maliciously opening the valve. At the same time, some children may also turn the fire valve, which may cause the fire valve to be opened when there is no fire, resulting in a large waste of water resources. At the same time, due to the high pressure of the water flow, there is also the risk of causing injuries to people. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a fire valve with an early warning indication function.

[0005] The technical solution adopted to solve the above technical problems is: to provide a fire valve with an early warning indication function, comprising a valve housing, the inner wall of the valve housing is fixedly connected with a beveled plugging sleeve, the top of the valve housing is fixedly connected with an integrated connection bottom shell, and a valve cover mechanism is installed on the integrated connection bottom shell; A gate valve stem mechanism is arranged between the valve cover mechanism and the inclined sealing sleeve, a limited position conduction mechanism is installed in the middle section of the gate valve stem mechanism, an alarm mechanism is installed between the two sides of the valve cover mechanism, and a clamping drive mechanism is arranged on the top of the gate valve stem mechanism.

[0006] Furthermore, the valve cover mechanism is packaged with a valve cover body installed on the top of the integrally connected bottom shell, and corresponding first bolt assemblies are fixedly connected between the valve cover body, the integrally connected bottom shell and the alarm mechanism, an integral threaded sleeve is fixedly connected to the top of the valve cover body, multiple layers of sealing fillers are installed on the inner wall of the integral threaded sleeve, and a nut cover is spirally connected to the outer wall of the integral threaded sleeve.

[0007] Through the above technical solution, a cavity is formed between the valve cover body and the integrally connected bottom shell, thereby providing a rising space for the bottom of the gate valve stem mechanism, and a sealing effect is achieved through multiple layers of sealing fillers to prevent internal water from overflowing when the valve is opened.

[0008] Furthermore, the gate valve stem mechanism includes a beveled gate body, beveled sealing sleeves are embedded on both sides of the beveled gate body, the top of the beveled gate body is fixedly connected to a connecting arc plate, a sealing ring is installed on the inner wall of the top of the connecting arc plate, the top of the connecting arc plate is slidably connected to a valve stem body, the bottom of the valve stem body is fixedly connected to an integrated push-pull round block, the top of the valve stem body is fixedly connected to an integrated threaded rod, and a second bolt assembly is installed between the top of the valve stem body and the limit conduction mechanism.

[0009] Through the above technical scheme, the integrated threaded rod, the valve stem body and the integrated push-pull block are driven to rise through the engaging driving mechanism. Since the groove cavity at the top of the connecting arc plate is larger than the thickness of the integrated push-pull block, when the integrated push-pull block is pulled up, the connecting arc plate will not move, but the limiting conduction mechanism fixed on the valve stem body will rise accordingly. After continuing to rise, the top of the groove cavity of the connecting arc plate is contacted by the integrated push-pull block, and then the connecting arc plate can be driven to rise by the integrated push-pull block, thereby driving the inclined gate plate body to release and the sealing of the inclined sealing sleeve to complete the water supply.

[0010] Furthermore, a groove corresponding to the valve stem body, the integrated push-pull round block and the sealing ring is formed on the top of the connecting arc plate.

[0011] Through the above technical solution, the wall formed by the groove can enable the integrated push-pull round block to rise a short distance, ensuring that an alarm can be sounded through the alarm mechanism before moving, thereby avoiding malicious valve opening.

[0012] Furthermore, the limit conduction mechanism includes a limit connecting plate installed on the gate valve stem mechanism, both ends of the limit connecting plate are fixedly connected with slotted arc limit plates, the top centers of the two slotted arc limit plates are fixedly connected with blocking blocks, the insides of the two slotted arc limit plates are fixedly connected with a group of springs, the two groups of springs are fixedly connected with connecting sleeves at one end away from the inner wall of the slotted arc limit plate, and the insides of the two connecting sleeves are clamped with double-ended connecting copper sheets.

[0013] Through the above technical solution, while pulling the gate valve stem mechanism upward, the overall limit conduction mechanism will be driven to move upward until the top of the double-ended copper sheets on both sides touch the top conductive copper block, and the bottom of the double-ended copper sheets touch the bottom conductive copper block, thereby forming an internal circuit of the alarm device. The alarm is sounded through the alarm device. At this time, if someone maliciously opens the valve, a prompt can be issued to open the valve. If it is a fire, just continue to open the valve. As the double-ended copper sheet continues to rise, it cannot form a circuit with the two conductive copper blocks, so the alarm sound is also contacted, thereby avoiding continuous alarms during the subsequent water supply process.

[0014] Furthermore, the slotted arc-shaped limiting plate is provided with a groove corresponding to the spring and the connecting sleeve on a side away from the limiting connecting plate.

[0015] The above technical solution ensures that the spring and the connecting sleeve can move along with the movement of the slotted arc-shaped limiting plate.

[0016] Furthermore, the alarm mechanism includes two arc-shaped limit frames installed on both sides of the top of the valve cover mechanism, and the two arc-shaped limit frames are fixedly connected to a group of fixing seats on the outer walls on a side away from each other, and the two groups of fixing seats are provided with mounting shells, and the two mounting shells are fixedly connected to a locking sleeve at the center of a side close to the arc-shaped limit frame, and alarm devices are installed inside the two arc-shaped limit frames, and the two alarm devices are electrically connected to connecting wires at the top and bottom of the side close to each other, and the other ends of the multiple connecting wires are provided with conductive copper blocks, and a connecting support frame is fixedly connected to the top between the two arc-shaped limit frames.

[0017] Through the above technical solution, when the limit conduction mechanism rises, the top of the double-ended copper sheets on both sides contacts the conductive copper block on the top, and the bottom of the double-ended copper sheets contacts the conductive copper block at the bottom, thereby forming an internal circuit of the alarm device, and an alarm is issued through the alarm device.

[0018] Furthermore, the two arc-shaped limit frames are provided with through holes corresponding to the engaging sleeves, and the two groups of fixing seats and the corresponding installation shells are fixed by a plurality of nuts.

[0019] Through the above technical solution, it is ensured that the snap-fitting shell can be inserted into the through hole, and at the same time, the position of the overall alarm mechanism is fixed by multiple nuts and two sets of fixing seats, ensuring that the position of the conductive copper block can contact the double-end connecting copper sheet.

[0020] Furthermore, the engaging drive mechanism includes a lifting and lowering control threaded block spirally connected to the outer wall of the integrated threaded rod, the top of the outer wall of the integrated threaded rod is rotatably connected to a driving sleeve, the outer wall of the driving sleeve is slidably connected to a sleeve iron ring, the inner wall of the sleeve iron ring is fixedly connected to a plurality of connecting clamping rods, arc-shaped magnet sheets are installed on both sides of the top of the driving sleeve, the top of the driving sleeve is fixedly connected to a driving handwheel, a limiting disc is provided on the top of the driving handwheel, the top of the integrated threaded rod passes through the limiting disc and is spirally connected to a locking bolt, and the bottom of the lifting and lowering control threaded block is fixedly connected to an L-shaped limiting ring.

[0021] Through the above technical scheme, when the valve is in the closed state, since the sleeve iron ring is adsorbed by the two arc-shaped magnet sheets, rotating the driving handwheel at this time will cause the driving handwheel, the driving circular sleeve, the two arc-shaped magnet sheets, the sleeve iron ring that rotates accordingly, and multiple connecting clamping rods to rotate at the top of the lifting control threaded block at the same time without any influence, thereby avoiding the situation where the valve is opened due to human rotation. In the event of a fire, the sleeve iron ring is pulled downward, and multiple connecting clamping rods are stuck in the grooves of the outer wall of the lifting control threaded block. At this time, multiple connecting clamping rods are stuck in the grooves of the lifting control threaded block and the driving circular sleeve, so that transmission can be achieved between the driving circular sleeve and the lifting control threaded block. At this time, rotating the driving handwheel will drive the lifting control threaded block to rotate through the driving circular sleeve that rotates accordingly, and then drive the overall gate valve stem mechanism to move up and down through the integrated threaded rod to complete the valve opening and closing work.

[0022] Furthermore, the outer wall of the lifting control threaded block and the outer wall of the driving circular sleeve are both provided with a plurality of grooves corresponding to the connecting rods, and the sleeve iron ring and the plurality of connecting rods are an integrated structure.

[0023] The above technical solution ensures that the connecting clamp rod can be clamped between the grooves of the lifting control thread block and the outer wall of the driving sleeve, thereby realizing the transmission connection between the lifting control thread block and the driving sleeve.

[0024] The beneficial effects of the present invention are as follows: (1) The present invention designs a locking drive mechanism. When the valve is closed, the sleeve iron ring is attracted by the two arc-shaped magnet sheets. At this time, there is no effect when the driving hand wheel is turned, thereby avoiding the situation where the valve is opened due to human rotation. By designing an alarm mechanism, when the sleeve iron ring is pulled downward and the driving hand wheel is turned, the overall limit conduction mechanism will be driven to rise, and then the double-end connected copper sheet and the two conductive copper blocks will be in contact, forming an internal circuit of the alarm device. The alarm device sends an alarm so that the staff can deal with it in time, which can effectively prevent children from accidentally touching the valve. (2) The present invention designs an integrated push-pull round block, a double-ended copper sheet and a conductive copper block, and when the valve is closed, the double-ended copper sheet and the conductive copper block are not at the same height, and thus cannot form a complete circuit. At the same time, when the driving hand wheel is rotated to cause the integrated threaded rod to rise, due to the design of the groove at the top of the connecting arc plate and the integrated push-pull round block, until the double-ended copper sheet and the conductive copper block form a circuit to sound an alarm, the inclined gate body will not be driven to rise, thereby avoiding water leakage. At the same time, when a fire occurs, the driving hand wheel is continuously rotated and the alarm cannot be sounded due to the separation of the double-ended copper sheet and the conductive copper block. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a cross-sectional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the internal structure of the integrated connection bottom shell of the present invention; Figure 4 It is a schematic diagram of the exploded structure of the valve cover mechanism of the present invention; Figure 5 It is a schematic diagram of the gate valve stem mechanism and the inclined plugging sleeve structure of the present invention; Figure 6 It is a schematic diagram of the gate valve stem mechanism structure of the present invention; Figure 7 yes Figure 2 A partial enlarged view of the middle A; Figure 8 It is a schematic diagram of the connection structure of the limit conduction mechanism and the alarm mechanism of the present invention; Fig. 9 It is a schematic diagram of the explosion structure of the limit conduction mechanism and the alarm mechanism of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the position limiting conduction mechanism and the alarm mechanism of the present invention when they are powered on; Fig.11 It is a schematic diagram of the exploded structure of the engaging driving mechanism of the present invention; Fig.12 It is a schematic diagram of the structure of the arc-shaped magnet sheet of the present invention; Fig.13 It is a schematic diagram of the structure of the L-shaped limiting ring of the present invention; Fig.14 Figure 2 A partial enlarged view of point B in the middle; Fig.15 It is a schematic diagram of the engagement structure of the connecting clamp rod and the lifting control thread block of the present invention; Fig.16 It is a schematic diagram of the structure of the inclined gate body of the present invention being fully opened.

[0026] Figure numerals: 1, valve housing; 2, inclined plugging sleeve; 3, integrated connection bottom shell; 4, valve cover mechanism; 401, valve cover body; 402, first bolt assembly; 403, integrated threaded sleeve; 404, multi-layer sealing packing; 405, nut cover; 5, gate valve stem mechanism; 501, inclined gate body; 502, inclined sealing sleeve; 503, connecting arc plate; 504, sealing ring; 505, valve stem body; 506, integrated push-pull round block; 507, integrated threaded rod; 508, second bolt assembly; 6, limit conduction mechanism; 601, limit connection plate; 602, slotted arc limit plate; 603, blocking block; 604, spring; 605, connecting sleeve; 606, double-end connecting copper sheet; 7, alarm mechanism; 701, arc-shaped limit frame; 702, fixing seat; 703, mounting shell; 704, snap-fitting shell; 705, alarm device; 706, connecting wire; 707, conductive copper block; 708, connecting support frame; 8, snap-fitting driving mechanism; 801, lifting control threaded block; 802, sleeve iron ring; 803, connecting clamp rod; 804, driving round sleeve; 805, arc-shaped magnet sheet; 806, driving hand wheel; 807, limit disc; 808, locking bolt; 809, L-shaped limit ring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] like Figure 1-Figure 4As shown, a fire valve with an early warning indication function in this embodiment includes a valve housing 1, an inner wall of the valve housing 1 is fixedly connected with a beveled sealing sleeve 2, the top of the valve housing 1 is fixedly connected with an integrated connecting bottom shell 3, a valve cover mechanism 4 is installed on the integrated connecting bottom shell 3, the valve cover mechanism 4 includes a valve cover body 401 installed on the top of the integrated connecting bottom shell 3, the valve cover body 401 and the integrated connecting bottom shell 3 and the alarm mechanism 7 are all fixedly connected with corresponding first bolt assemblies 402, the top of the valve cover body 401 is fixedly connected with an integrated threaded sleeve 403, the inner wall of the integrated threaded sleeve 403 is installed with multiple layers of sealing filler 404, and the outer wall of the integrated threaded sleeve 403 is spirally connected with a nut cover 405, a cavity is formed between the valve cover body 401 and the integrated connecting bottom shell 3, thereby providing a rising space for the bottom of the gate valve stem mechanism 5, and a sealing effect is achieved by the multiple layers of sealing filler 404 to prevent internal water from overflowing when the valve is opened.

[0029] like Figure 1-Figure 7 As shown, a gate valve stem mechanism 5 is arranged between the valve cover mechanism 4 and the inclined sealing sleeve 2, and the gate valve stem mechanism 5 includes an inclined gate body 501, and both sides of the inclined gate body 501 are embedded with inclined sealing sleeves 502, the top of the inclined gate body 501 is fixedly connected with a connecting arc plate 503, the inner wall of the top of the connecting arc plate 503 is installed with a sealing ring 504, the top of the connecting arc plate 503 is slidably connected with a valve stem body 505, and the bottom of the valve stem body 505 is connected to the valve stem body 505. An integrated push-pull round block 506 is fixedly connected, and an integrated threaded rod 507 is fixedly connected to the top of the valve stem body 505. A second bolt assembly 508 is installed between the top of the valve stem body 505 and the limit conduction mechanism 6. The integrated threaded rod 507, the valve stem body 505 and the integrated push-pull round block 506 are driven to rise by the engaging driving mechanism 8. Since the groove cavity at the top of the arc plate 503 is larger than the thickness of the integrated push-pull round block 506, the integrated push-pull round block 506 is pulled upward. When the push-pull round block 506 rises, the connecting arc plate 503 does not move (because the outer wall of the integrated push-pull round block 506 and the inner wall of the groove are not completely sealed, the air factor inside the groove cavity is not considered here), but the limiting conduction mechanism 6 fixed on the valve stem body 505 will rise accordingly. After continuing to rise, the integrated push-pull round block 506 contacts the top of the groove cavity of the connecting arc plate 503, and then the integrated push-pull round block 506 can drive the connecting arc plate 503 to rise, thereby driving the inclined gate plate body 501 to release the seal of the inclined sealing sleeve 2 to complete the water supply. The top of the connecting arc plate 503 is provided with a groove corresponding to the valve stem body 505, the integrated push-pull round block 506 and the sealing ring 504. The wall formed by the groove can enable the integrated push-pull round block 506 to rise a short distance, ensuring that an alarm can be sounded through the alarm mechanism 7 before moving to avoid malicious valve opening.

[0030] like Figure 1-Figure 10 As shown, the middle section of the gate valve stem mechanism 5 is installed with a limit conduction mechanism 6, which includes a limit connection plate 601 installed on the gate valve stem mechanism 5, both ends of the limit connection plate 601 are fixedly connected with slotted arc limit plates 602, the top centers of the two slotted arc limit plates 602 are fixedly connected with blocking blocks 603, the insides of the two slotted arc limit plates 602 are fixedly connected with a group of springs 604, the two groups of springs 604 are fixedly connected with connecting sleeves 605 at one end away from the inner wall of the slotted arc limit plates 602, and the insides of the two connecting sleeves 605 are both clamped with double-ended connecting copper sheets 606, and when the gate valve stem mechanism 5 is pulled up, the overall limit conduction mechanism 6 will be driven to move upward until the tops of the double-ended connecting copper sheets 606 on both sides contact The bottom of the double-ended copper sheet 606 contacts the conductive copper block 707 at the top, and the bottom of the double-ended copper sheet 606 contacts the conductive copper block 707 at the bottom, thereby forming an internal circuit of the alarm device 705. An alarm is sounded through the alarm device 705. At this time, if someone maliciously opens the valve, a prompt can be issued to prompt someone to open the valve. If there is a fire, only the valve needs to be opened. As the double-ended copper sheet 606 continues to rise, it cannot form a circuit with the two conductive copper blocks 707, so the alarm sound is also contacted, avoiding continuous alarms in the subsequent water supply process. The slotted arc-shaped limit plate 602 is provided with a groove corresponding to the spring 604 and the connecting sleeve 605 on the side away from the limit connecting plate 601, ensuring that the spring 604 and the connecting sleeve 605 can move with the movement of the slotted arc-shaped limit plate 602.

[0031] like Figure 1-Figure 10As shown, an alarm mechanism 7 is installed between the two sides of the valve cover mechanism 4, and the alarm mechanism 7 includes two arc-shaped limit frames 701 installed on both sides of the top of the valve cover mechanism 4, and the two arc-shaped limit frames 701 are fixedly connected with a group of fixing seats 702 on the outer walls of a side away from each other, and the two groups of fixing seats 702 are provided with a mounting shell 703, and the two mounting shells 703 are fixedly connected with a snap-fit ​​shell 704 at the center of a side close to the arc-shaped limit frame 701, and an alarm device 705 is installed inside the two arc-shaped limit frames 701, and the two alarm devices 705 are electrically connected with connecting wires 706 at the top and bottom of the side close to each other, and the other ends of the multiple connecting wires 706 are provided with conductive copper blocks 707, and the top between the two arc-shaped limit frames 701 is fixed. A connecting support frame 708 is connected. When the limit conduction mechanism 6 rises, the top of the double-ended connecting copper sheets 606 on both sides contacts the conductive copper block 707 on the top, and the bottom of the double-ended connecting copper sheets 606 contacts the conductive copper block 707 at the bottom, thereby forming an internal circuit of the alarm device 705, and an alarm is sounded through the alarm device 705. Through holes corresponding to the snap-fit ​​shell 704 are provided on the two arc-shaped limit frames 701. Two sets of fixing seats 702 and the corresponding installation shells 703 are fixed by multiple nuts, ensuring that the snap-fit ​​shell 704 can be inserted into the through holes. At the same time, the position of the overall alarm mechanism 7 is fixed by multiple nuts and two sets of fixing seats 702, ensuring that the position of the conductive copper block 707 can contact the double-ended connecting copper sheet 606.

[0032] like Figure 1-Figure 16As shown, a clamping drive mechanism 8 is provided at the top of the gate valve stem mechanism 5, and the clamping drive mechanism 8 includes a lifting control threaded block 801 spirally connected to the outer wall of the integrated threaded rod 507, and the top of the outer wall of the integrated threaded rod 507 is rotatably connected to a driving sleeve 804, and the outer wall of the driving sleeve 804 is slidably connected to a sleeve iron ring 802, and the inner wall of the sleeve iron ring 802 is fixedly connected to a plurality of connecting clamping rods 803, arc-shaped magnet sheets 805 are installed on both sides of the top of the driving sleeve 804, and the top of the driving sleeve 804 is fixedly connected to a driving hand wheel 806. A limiting disc 807 is provided on the top of the driving hand wheel 806, and the top of the integrated threaded rod 507 passes through the limiting disc 807 and is spirally connected with a locking bolt 808. The bottom of the lifting control thread block 801 is fixedly connected with an L-shaped limiting ring 809. When the valve is in the closed state, the sleeve iron ring 802 is adsorbed by the two arc-shaped magnet pieces 805. At this time, when the driving hand wheel 806 is rotated, the driving hand wheel 806, the driving sleeve 804, the two arc-shaped magnet pieces 805, the sleeve iron ring 802 and the multiple connecting rods 803 that rotate accordingly are simultaneously on the lifting control thread block. 801 is rotated at the top without any influence, thus avoiding the situation that the valve is opened due to artificial rotation. In case of fire, the sleeve iron ring 802 is pulled downward, and multiple connecting rods 803 are stuck in the groove of the outer wall of the lifting control thread block 801. At this time, multiple connecting rods 803 are stuck in the grooves of the lifting control thread block 801 and the driving sleeve 804, so that the driving sleeve 804 and the lifting control thread block 801 can be driven. At this time, rotating the driving hand wheel 806 will drive the lifting control thread block 801 through the driving sleeve 804 rotating accordingly. 01 rotates, and then drives the overall gate valve stem mechanism 5 to move up and down through the integrated threaded rod 507 to complete the valve opening and closing work. The outer wall of the lifting control thread block 801 and the outer wall of the driving circular sleeve 804 are provided with multiple grooves corresponding to the connecting clamping rod 803. The sleeve iron ring 802 and multiple connecting clamping rods 803 are an integrated structure, which ensures that the connecting clamping rod 803 can be stuck between the grooves of the lifting control thread block 801 and the outer wall of the driving circular sleeve 804, thereby realizing the transmission connection between the lifting control thread block 801 and the driving circular sleeve 804.

[0033] The working principle of this embodiment is as follows: when the valve is closed, since the sleeve iron ring 802 is attracted by the two arc-shaped magnet pieces 805, when the driving hand wheel 806 is rotated, the driving hand wheel 806, the driving circular sleeve 804, the two arc-shaped magnet pieces 805, the sleeve iron ring 802 and the multiple connecting rods 803 that rotate accordingly rotate at the top of the lifting control threaded block 801 at the same time without any influence, thus avoiding the situation where the valve is opened due to artificial rotation; If someone pulls the sleeve iron ring 802 downward, and makes multiple connecting rods 803 stuck in the groove of the outer wall of the lifting control threaded block 801, at this time, multiple connecting rods 803 are stuck in the grooves of the lifting control threaded block 801 and the driving sleeve 804, so that the driving sleeve 804 and the lifting control threaded block 801 can be driven. At this time, rotating the driving hand wheel 806 will drive the lifting control threaded block 801 to rotate through the driving sleeve 804 that rotates accordingly. If it is counterclockwise, the bottom of the gate valve stem mechanism 5 touches the bottom and therefore cannot rotate. If it is rotated clockwise, it drives the integrated threaded rod 507, the valve stem body 505 and the integrated push-pull round block 506 to rise. The groove cavity is larger than the thickness of the integrated push-pull round block 506, and when the integrated push-pull round block 506 is pulled up, the connecting arc plate 503 will not move, but the limit conduction mechanism 6 fixed on the valve stem body 505 will rise accordingly, until the top of the double-end connecting copper sheet 606 on both sides contacts the top conductive copper block 707, and the bottom of the double-end connecting copper sheet 606 contacts the bottom conductive copper block 707, thereby forming an internal circuit of the alarm device 705, and an alarm is issued through the alarm device 705 (at this time, the integrated push-pull round block 506 does not contact the top of the groove cavity at the top of the connecting arc plate 503, so the inclined gate body 501 cannot be opened), thereby issuing a prompt that someone is opening the valve; In case of fire, the same operation as above is performed and the alarm is sounded, and the driving hand wheel 806 is continued to be turned to make the valve stem body 505 continue to rise. At this time, the integrated push-pull round block 506 contacts the top of the groove cavity of the connecting arc plate 503, and then the integrated push-pull round block 506 can be used to drive the connecting arc plate 503 to rise, thereby driving the inclined gate body 501 to release the seal of the inclined blocking sleeve 2 to complete the water supply. At the same time, the double-ended connecting copper sheet 606 in the limit conduction mechanism 6 contacts the two conductive copper blocks 707 and an alarm is generated. As the double-ended connecting copper sheet 606 continues to rise, the valve stem body 505 is lifted and lowered. It rises and cannot form a circuit with the two conductive copper blocks 707, so the alarm sound is also contacted, avoiding continuous alarm in the subsequent water supply process. After the fire is extinguished, the driving hand wheel 806 is rotated in the opposite direction, and the L-shaped limit ring 809 and the top groove of the connecting support frame 708 are engaged, and the integrated push-pull round block 506 contacts the bottom of the groove cavity of the connecting arc plate 503, thereby pushing the inclined gate body 501 down until the inclined gate body 501 contacts the inclined sealing sleeve 2 through the inclined sealing sleeves 502 on both sides, thereby completing the sealing of the valve.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A fire valve with an early warning indication function, comprising a valve housing (1), characterized in that: The inner wall of the valve housing (1) is fixedly connected to a beveled plugging sleeve (2), the top of the valve housing (1) is fixedly connected to an integrally connected bottom shell (3), and a valve cover mechanism (4) is mounted on the integrally connected bottom shell (3); A gate valve stem mechanism (5) is arranged between the valve cover mechanism (4) and the inclined sealing sleeve (2), a limited position conduction mechanism (6) is installed in the middle section of the gate valve stem mechanism (5), an alarm mechanism (7) is installed between the two sides of the valve cover mechanism (4), and a locking drive mechanism (8) is arranged at the top of the gate valve stem mechanism (5).

2. The fire valve with early warning indication function according to claim 1 is characterized in that: The valve cover mechanism (4) includes a valve cover body (401) installed on the top of the integrally connected bottom shell (3); the valve cover body (401), the integrally connected bottom shell (3) and the alarm mechanism (7) are all fixedly connected with corresponding first bolt assemblies (402); the top of the valve cover body (401) is fixedly connected with an integral threaded sleeve (403); the inner wall of the integral threaded sleeve (403) is installed with multiple layers of sealing fillers (404); and the outer wall of the integral threaded sleeve (403) is spirally connected with a nut cover (405).

3. The fire valve with early warning indication function according to claim 1 is characterized in that: The gate valve stem mechanism (5) comprises a bevel gate body (501), bevel sealing sleeves (502) are embedded on both sides of the bevel gate body (501), the top of the bevel gate body (501) is fixedly connected to a connecting arc plate (503), the inner wall of the top of the connecting arc plate (503) is installed with a sealing ring (504), the top of the connecting arc plate (503) is slidably connected to a valve stem body (505), the bottom of the valve stem body (505) is fixedly connected to an integrated push-pull round block (506), the top of the valve stem body (505) is fixedly connected to an integrated threaded rod (507), and a second bolt assembly (508) is installed between the top of the valve stem body (505) and the limit conduction mechanism (6).

4. The fire valve with early warning indication function according to claim 2 is characterized in that: The top of the connecting arc plate (503) is provided with grooves corresponding to the valve stem body (505), the integrated push-pull round block (506) and the sealing ring (504).

5. The fire valve with early warning indication function according to claim 1 is characterized in that: The limit conduction mechanism (6) comprises a limit connection plate (601) mounted on the gate valve stem mechanism (5), both ends of the limit connection plate (601) are fixedly connected with slotted arc limit plates (602), the top centers of the two slotted arc limit plates (602) are fixedly connected with blocking blocks (603), the interiors of the two slotted arc limit plates (602) are fixedly connected with a group of springs (604), the two groups of springs (604) are fixedly connected with a connecting sleeve (605) at one end away from the inner wall of the slotted arc limit plate (602), and the interiors of the two connecting sleeves (605) are clamped with double-end connecting copper sheets (606).

6. The fire valve with early warning indication function according to claim 5 is characterized in that: The slotted arc-shaped limiting plate (602) is provided with a groove corresponding to the spring (604) and the connecting sleeve (605) on a side away from the limiting connecting plate (601).

7. The fire valve with early warning indication function according to claim 1 is characterized in that: The alarm mechanism (7) comprises two arc-shaped limit frames (701) installed on both sides of the top of the valve cover mechanism (4); the two arc-shaped limit frames (701) are fixedly connected to a group of fixing seats (702) on the outer walls of a side away from each other; the two groups of fixing seats (702) are provided with a mounting shell (703); the two mounting shells (703) are fixedly connected to a locking sleeve (704) at the center of a side close to the arc-shaped limit frames (701); the two arc-shaped limit frames (701) are internally installed with an alarm device (705); the two alarm devices (705) are electrically connected to connecting wires (706) at the top and bottom of a side close to each other; the other ends of the plurality of connecting wires (706) are provided with a conductive copper block (707); and a connecting support frame (708) is fixedly connected to the top between the two arc-shaped limit frames (701).

8. The fire valve with early warning indication function according to claim 7 is characterized in that: Through holes corresponding to the engaging sleeves (704) are provided on the two arc-shaped limiting frames (701), and the two sets of fixing seats (702) and the corresponding mounting shells (703) are fixed by a plurality of nuts.

9. The fire valve with early warning indication function according to claim 3 is characterized in that: The engaging drive mechanism (8) comprises a lifting control threaded block (801) which is spirally connected to the outer wall of the integrated threaded rod (507); a driving sleeve (804) is rotatably connected to the top of the outer wall of the integrated threaded rod (507); a sleeve iron ring (802) is slidably connected to the outer wall of the driving sleeve (804); a plurality of connecting clamping rods (803) are fixedly connected to the inner wall of the sleeve iron ring (802); arc-shaped magnet sheets (805) are installed on both sides of the top of the driving sleeve (804); a driving hand wheel (806) is fixedly connected to the top of the driving sleeve (804); a limiting disc (807) is arranged on the top of the driving hand wheel (806); a locking bolt (808) is spirally connected to the top of the integrated threaded rod (507) through the limiting disc (807); and an L-shaped limiting ring (809) is fixedly connected to the bottom of the lifting control threaded block (801).

10. The fire valve with early warning indication function according to claim 9, characterized in that: The outer wall of the lifting control threaded block (801) and the outer wall of the driving circular sleeve (804) are both provided with a plurality of grooves corresponding to the connecting clamping rods (803), and the sleeve iron ring (802) and the plurality of connecting clamping rods (803) are an integrated structure.

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