Rotary sprinkler head

Abstract

The application discloses a rotary deluge sprinkler, belonging to the technical field of fire sprinkler. The rotary deluge sprinkler comprises a main body sleeve, a threaded ring screwed to the upper part of the main body sleeve, a connecting valve fixed to the upper side of the threaded ring, the main body sleeve, a fusible alloy ring fixed to the main body sleeve, and a bracket fixed to the fusible alloy ring. A shielding piece is fixed to the sealing seat. A monitoring assembly is arranged on the sealing seat and used for monitoring the air humidity between the sealing seat and the bracket. The air humidity in the main body sleeve is monitored, and the shielding piece is pressed when the air humidity is high, so that a sealing surface is formed between the shielding piece and the bracket, water in the fire pipe network is prevented from leaking to the outside, and thus, on the one hand, surrounding articles are prevented from being damaged due to the water leakage of the deluge sprinkler, and on the other hand, the influence of the water leakage of a single deluge sprinkler on the internal pressure of the fire pipe network is reduced, and the influence on other sprinklers connected in the same fire pipe network is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fire sprinkler, and particularly relates to a rotary deluge sprinkler. BACKGROUND

[0002] The deluge sprinkler is a fire extinguishing device specially designed for workshops, warehouses and shopping malls, etc., which rotates by hydraulic drive to realize uniform water spraying for fire extinguishing. When the temperature in the installation area rises to a certain threshold due to fire, the fusible alloy in the sprinkler melts to automatically open the sprinkler. Under the action of the fire pipe network pressure, the water flows through the rotating disc below the sprinkler to be uniformly sprayed around, effectively controlling the fire and extinguishing the fire.

[0003] In the untriggered state, the fusible alloy inside the deluge sprinkler supports other components and blocks the connection between the fire pipe network and the sprinkler by extruding the sealing ring to prevent water leakage of the deluge sprinkler. However, due to the influence of the water pressure fluctuation in the pipe network, the sealing ring may be deformed due to fatigue, resulting in a gap between the sealing surface of the sprinkler and the pipe network. This not only may cause liquid leakage, damage surrounding objects and bring property loss, but also may cause the pressure of the fire pipe network to decrease and the water storage to reduce, affecting the normal work of other sprinklers in the event of fire and weakening the fire control effect, which seriously threatens the safety of life and property of personnel. SUMMARY

[0004] The present application provides a rotary deluge sprinkler to overcome the shortcomings that the sealing ring in the existing deluge sprinkler is affected by the water pressure in the fire pipe network for a long time, resulting in reduced sealing effect and causing water leakage of the deluge sprinkler.

[0005] The technical scheme of the present application is as follows: a rotary deluge sprinkler, comprising:

[0006] A main body sleeve, a threaded ring is threadedly connected to the upper part in the main body sleeve, a connecting valve is fixedly connected to the upper side of the threaded ring, the connecting valve is in contact with the main body sleeve, a fusible alloy ring is fixedly connected in the main body sleeve, a support is fixedly connected to the fusible alloy ring, the maximum outer diameter of the support is greater than the minimum inner diameter of the main body sleeve, the main body sleeve is used for limiting the support, and the maximum outer diameter of the support is less than the maximum outer diameter of the fusible alloy ring;

[0007] A fixed rod is threadedly connected to the support, and the fixed rod is rotationally connected with a rotating disc;

[0008] A sealing seat is slidingly connected to the support, a drainage channel is arranged on the outer side of the sealing seat, a clamping ring is fixedly connected to the sealing seat, a silica gel ring is slidingly connected to the clamping ring in a sealed manner, and the threaded ring and the sealing seat are in contact with the silica gel ring;

[0009] A shielding piece is fixedly connected to the sealing seat and used for shielding the support.

[0010] A monitoring assembly is arranged on the sealing seat and used for monitoring air humidity between the sealing seat and the support;

[0011] A transmission assembly is arranged on the shielding sheet and used for extruding the shielding sheet.

[0012] Further, a plurality of rotating steel balls are embedded on the fixing rod, the rotating steel balls are in contact with the rotating disc, the rotating disc is provided with an inclined plate, and the rotating disc is facilitated to rotate under the impact of water flow.

[0013] Further, the monitoring assembly comprises:

[0014] A storage cylinder is fixedly connected to the sealing seat, the storage cylinder is sealingly and slidingly connected with a pushing ring, the storage cylinder and the pushing ring jointly form a storage cavity, water-absorbing expansion medium is stored in the storage cavity, and the inner side of the storage cylinder is provided with a liquid inlet hole in communication with the storage cavity.

[0015] Further, an annular inclined surface is arranged on the storage cylinder and used for guiding water flow to enter between the sealing seat and the pushing ring.

[0016] Further, the transmission assembly comprises:

[0017] A plurality of swing members are rotationally connected to the storage cylinder.

[0018] An extrusion ring is fixedly connected to the shielding sheet, and the two ends of the swing member are respectively in contact with the sides, away from the storage cylinder, of the extrusion ring and the pushing ring.

[0019] Further, the minimum distance between the swing member on the storage cylinder and the side, away from the storage cylinder, of the pushing ring is greater than the minimum distance between the swing member on the storage cylinder and the extrusion ring.

[0020] Further, the distance between the sealing seat and the connecting valve is greater than the height of the clamping ring.

[0021] Further, the device further comprises:

[0022] A limiting ring is screw-connected in the main body sleeve, the limiting ring is located between the fusible alloy ring and the sealing seat, the limiting ring is provided with an arc-shaped through hole, the inner diameter of the limiting ring is smaller than the maximum outer diameter of the sealing seat, the limiting ring is used for limiting the sealing seat, and the shielding sheet is in contact with the support.

[0023] Further, the device further comprises:

[0024] A T-shaped piece is limitingly and slidingly connected to the sealing seat, and the T-shaped piece is provided with a limiting clamping groove, and the support and the fixed rod are slidingly connected with the T-shaped piece;

[0025] A U-shaped piece is limitingly and slidingly connected to the support, and the U-shaped piece limits the T-shaped piece through the limiting clamping groove;

[0026] A transmission piece is fixedly connected between the U-shaped piece and the support, and is used for sensing external temperature change and pushing the U-shaped piece to move.

[0027] Further, the clamping ring is provided with a communication hole, and a sealing piece made of shape memory alloy is fixedly connected in the communication hole of the clamping ring, and the sealing piece is in contact with the T-shaped piece.

[0028] In summary, the present application has at least one of the following beneficial technical effects: the present application monitors the air humidity in the main body sleeve, and when the air humidity is high, the blocking piece is squeezed to form a sealing surface between the blocking piece and the support, preventing water in the fire pipe network from leaking to the outside. In this way, on the one hand, it avoids damage to surrounding objects due to water leakage of the rain shower nozzle, and on the other hand, it reduces the impact of water leakage of a single rain shower nozzle on the internal pressure of the fire pipe network and the impact on other nozzles connected in the same fire pipe network. By making the support and the rotating disc not in contact with the main body sleeve, the probability of the rain shower nozzle being blocked due to rust on the main body sleeve, the support and the rotating disc is reduced, and the practicability of the rain shower nozzle is improved. The water-absorbing expansion medium is used to monitor the air humidity, and the volume change of the water-absorbing expansion medium during expansion is used as power to drive the oscillating piece to squeeze the blocking piece, so that the blocking piece blocks the fan-shaped through hole on the support, preventing water in the fire pipe from leaking to the outside. The water pressure in the fire pipe network is used to push the T-shaped piece to quickly move downward to knock the sealing seat and the support, reducing the probability that the rain shower nozzle cannot be started in time due to rust of the parts and aging of the silica gel ring, and promoting the sealing seat and the support to move downward and perform fire extinguishing operation. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0030] Figure 2 It is a schematic diagram of the three-dimensional structure of the present application;

[0031] Figure 3 It is a schematic diagram of the three-dimensional structure of the present application;

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the present application;

[0033] Figure 5 It is an enlarged view of A in the present application; Figure 4 application;

[0034] Figure 6 It is the perspective structure diagram of the sealing seat, U-shaped piece and transmission piece of the application;

[0035] Figure 7 It is the perspective structure section view of the thread ring, sealing seat and clamping ring of the application;

[0036] Figure 8 It is the explosion view of the support, rotating disc and sealing seat of the application;

[0037] Figure 9 It is the perspective structure diagram of the T-shaped piece, U-shaped piece and transmission piece of the application.

[0038] Figure label name: 1-main body cover, 2-connection valve, 3-thread ring, 4-fusible alloy ring, 5-support, 6-rotating disc, 7-fixed rod, 701-rotating steel ball, 8-sealing seat, 801-drainage flow channel, 9-clamping ring, 10-silica gel ring, 11-shielding piece, 12-storage cylinder, 121-liquid inlet hole, 122-annular inclined surface, 13-pushing ring, 131-storage cavity, 14-oscillating piece, 15-pressing ring, 16-limiting ring, 17-T-shaped piece, 171-limiting clamping groove, 18-U-shaped piece, 19-transmission piece, 20-sealing piece. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, not all the embodiments of the application.

[0040] Examples of the described embodiments are shown in the drawings, wherein the same or similar labels represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the application, and cannot be understood as a limitation of the application.

[0041] A rotary deluge nozzle, please refer to Figures 1-3The utility model relates to a kind of air conditioner, including: main body sleeve 1, the upper part screw connection of main body sleeve 1 is threaded ring 3, the upper side of threaded ring 3 is fixedly connected with connecting valve 2, connecting valve 2 is in contact with main body sleeve 1, main body sleeve 1 is fixedly connected with fusible alloy ring 4 in, fusible alloy ring 4 is fixedly connected with support 5, the maximum outer diameter of support 5 is greater than the minimum inner diameter of main body sleeve 1, main body sleeve 1 is used to limit support 5, the maximum outer diameter of support 5 is less than the maximum outer diameter of fusible alloy ring 4;Fixed rod 7, screw connection is in support 5, fixed rod 7 is rotatably connected with rotary disc 6;Sealing seat 8, slidingly connected in support 5, the outside of sealing seat 8 is provided with drainage channel 801, sealing seat 8 is fixedly connected with clamping ring 9, clamping ring 9 is sealingly connected with silica gel ring 10, threaded ring 3 and sealing seat 8 are in contact with silica gel ring 10;Shielding sheet 11, fixedly connected with sealing seat 8, for shielding support 5;Monitoring assembly, be set on sealing seat 8, for monitoring the air humidity between sealing seat 8 and support 5;Transmission assembly, be set on shielding sheet 11, for extruding shielding sheet 11;Fixed rod 7 is embedded with multiple rotating steel balls 701, rotating steel balls 701 are in contact with rotary disc 6, rotary disc 6 is provided with inclined plate, it is convenient for rotary disc 6 to be rotated by water flow impact.

[0042] In the above scheme, the purpose is to solve the problem that the sealing ring in the existing rain shower head produces fatigue deformation and loses the sealing effect; the scheme monitors the air humidity between the sealing seat 8 and the support 5, and when the air humidity is detected to be large, the shielding piece 11 is extruded to form a sealing surface between the shielding piece 11 and the support 5, preventing water in the fire pipe network from leaking to the outside, which on the one hand avoids damage to surrounding objects due to water leakage of the rain shower head, and on the other hand reduces the influence of water leakage of a single rain shower head on the internal pressure of the fire pipe network, and reduces the influence on other heads connected in the same fire pipe network; the connecting valve 2 is connected with the fire pipe network during use; the inner diameter of the silica gel ring 10 is equal to the minimum outer diameter of the clamping ring 9, and before the device is assembled, the silica gel ring 10 is sleeved on the clamping ring 9, and the sealing seat 8 and the clamping ring 9 limit the silica gel ring 10; in the stress-free state, the maximum outer diameter of the silica gel ring 10 is greater than the maximum outer diameter of the sealing seat 8 and less than the inner diameter of the upper part of the main body sleeve 1, after the device is assembled, the silica gel ring 10 is limited by the threaded ring 3, the sealing seat 8 and the clamping ring 9, and in the process of installing the threaded ring 3 on the main body sleeve 1 through threads, the threaded ring 3 extrudes the silica gel ring 10, first deforming the silica gel ring 10, and the threaded ring 3, the sealing seat 8 and the clamping ring 9 are fully attached to the silica gel ring 10 (at this time, the maximum outer diameter of the silica gel ring 10 is equal to the maximum outer diameter of the sealing seat 8), so as to separate the space in the connecting valve 2 from the space in the main body sleeve 1; the material of the fusible alloy ring 4 is determined according to the actual installation site (the temperature at which the fusible alloy ring 4 starts to melt is referred to as the threshold value of the fusible alloy ring 4 hereinafter), and the fusible alloy ring 4 is used to fix the support 5 to a specified position on the main body sleeve 1; the middle part of the support 5 is provided with four fan-shaped through holes; the rotating disc 6 is provided with an inclined plate, and when water flow impacts the inclined plate of the rotating disc 6, the water flow will uniformly spread around the rotating disc 6 and drive the rotating disc 6 to rotate.

[0043] The comparison of the outer diameter of the support 5 and the inner diameter of the main body sleeve 1 makes the support 5 not contact the main body sleeve 1, and the rotating disc 6 can not contact the main body sleeve 1, so that when rust occurs on the inner wall of the support 5, the rotating disc 6 and the main body sleeve 1, the probability that the support 5 and the rotating disc 6 are rusted and stuck and cannot move is reduced; the shielding piece 11 is annular as a whole, and the thickness of the edge thereof is greater than that of the remaining part, and the shielding piece 11 can cover the four fan-shaped through holes on the support 5; the shielding piece 11 is made of elastic rubber material; the drainage flow channel 801 provides a flow path for water leaked due to sealing failure of the silica gel ring 10, so that the water can flow to the gap between the sealing seat 8 and the storage cylinder 12 under the surface tension thereof; the upper part of the sealing seat 8 is umbrella-shaped, and the lower side of the umbrella of the sealing seat 8 is in an inclined state (for reference Figure 7 ), facilitating the flow of water in the drainage flow channel 801.

[0044] Please refer to Figures 3-6The monitoring assembly comprises a storage cylinder 12 fixed to the sealing seat 8, the storage cylinder 12 is sealingly and slidingly connected with a pushing ring 13, the storage cylinder 12 and the pushing ring 13 cooperatively form a storage cavity 131, the storage cavity 131 stores water-absorbing swelling medium, and the inner side of the storage cylinder 12 is provided with a liquid inlet hole 121 in communication with the storage cavity 131; the storage cylinder 12 is provided with an annular inclined surface 122 for guiding water flow into the gap between the sealing seat 8 and the pushing ring 13; the transmission assembly comprises a plurality of swing members 14, each swing member 14 is rotationally connected to the storage cylinder 12; and an extrusion ring 15 is fixed to the shielding sheet 11, the side of the extrusion ring 15 and the pushing ring 13 away from the storage cylinder 12 respectively contacts with two ends of the swing member 14; the minimum distance between the swing member 14 on the storage cylinder 12 and the side of the pushing ring 13 away from the storage cylinder 12 is greater than the minimum distance between the swing member 14 on the storage cylinder 12 and the extrusion ring 15.

[0045] In the above scheme, the air humidity between the support 5 and the sealing seat 8 is monitored by the water-absorbing swelling medium, and the volume change of the water-absorbing swelling medium when swelling is used as power to drive the swing member 14 to extrude the shielding sheet 11, so that the shielding sheet 11 blocks the fan-shaped through hole on the support 5 to prevent water in the fire pipeline from leaking to the outside; the water-absorbing swelling medium is selected as superabsorbent resin, which can swell and form gel-like material after absorbing water; the liquid inlet hole 121 can be arranged in an inclined state, that is, in the direction gradually approaching the central axis of the storage cylinder 12, the height of the liquid inlet hole 121 gradually increases, which is convenient for water in the gap between the storage cylinder 12 and the sealing seat 8 to enter the liquid inlet hole 121; the inner wall of the storage cavity 131 can be covered with a layer of non-woven fabric to prevent the superabsorbent resin from leaking out of the storage cavity 131 through the liquid inlet hole 121; in the direction gradually approaching the central axis of the storage cylinder 12, the height of the annular inclined surface 122 gradually decreases, which guides the water in the flow guide channel 801 to enter the gap between the sealing seat 8 and the storage cylinder 12; the swing member 14 and the storage cylinder 12 form a lever structure, and the force of the superabsorbent resin in the storage cavity 131 pushing the pushing ring 13 upward is used to drive the swing member 14 to swing; the number of swing members 14 can be changed according to actual conditions, but the number of swing members 14 should not be less than two, the extrusion ring 15 is made of hard material, and is used to uniformly transmit the extrusion force of the swing member 14 to all around of the shielding sheet 11.

[0046] Please refer to Figure 7 The distance between the sealing seat 8 and the connecting valve 2 is greater than the height of the clamping ring 9.

[0047] In the above scheme, when the silicone ring 10 appears fatigue deformation and loses the sealing effect of the device, the reaction force of the swing member 14 extruding the extrusion ring 15 is used to make the swing member 14, the storage cylinder 12, the push ring 13, the sealing seat 8 and the clamping ring 9 move up together, and the upward movement of the sealing seat 8 and the clamping ring 9 makes the threaded ring 3, the sealing seat 8 and the clamping ring 9 extrude the silicone ring 10 again, so that the silicone ring 10 deforms again and separates the connecting valve 2 from the main body sleeve 1.

[0048] The specific working process of the above scheme is as follows: when the device is used, the connecting valve 2 is installed on the fire fighting pipe network by using a tool, and when a fire occurs, the temperature around the device gradually rises, at which time heat exchange occurs between the external environment and the main body sleeve 1, so that the temperature of the main body sleeve 1 rises, heat exchange occurs between the main body sleeve 1 and the fusible alloy ring 4, so that the temperature of the fusible alloy ring 4 synchronously rises, until the temperature of the fusible alloy ring 4 reaches its threshold value, the fusible alloy ring 4 melts and releases the fixation of the support 5, at which time the support 5, the rotating disc 6, the fixed rod 7, the sealing seat 8, the clamping ring 9, the silicone ring 10, the shielding piece 11, the storage cylinder 12, the push ring 13, the swing member 14 and the extrusion ring 15 move down together, so that the silicone ring 10 loses contact with the threaded ring 3, and the blockage between the main body sleeve 1 and the connecting valve 2 is released, until the support 5 is placed at the smallest inner diameter of the main body sleeve 1, and the rotating disc 6 protrudes out of the main body sleeve 1, at which time the support 5, the rotating disc 6, the fixed rod 7, the sealing seat 8, the clamping ring 9, the silicone ring 10, the shielding piece 11, the storage cylinder 12, the push ring 13, the swing member 14 and the extrusion ring 15 stop moving down, and then the water in the fire fighting pipe network passes through the gap between the connecting valve 2, the threaded ring 3 and the silicone ring 10, the gap between the sealing seat 8 and the main body sleeve 1, the gap between the support 5 and the shielding piece 11 (in the initial state of the embodiment, the support 5 and the shielding piece 11 do not contact), the fan-shaped through hole on the support 5 and the smallest inner diameter of the main body sleeve 1 in sequence, and then the water flow collides with the rotating disc 6 and spreads uniformly in all directions under the guidance of the inclined plate on the rotating disc 6, while the water flow impacts the rotating disc 6 to rotate, so that the rotating disc 6 discharges the water flow in a sprinkling manner to control the surrounding fire, and then after the fire is extinguished, the device is removed from the fire fighting pipe network and replaced by the staff.

[0049] When the silicone ring 10 loses contact with the threaded ring 3 (the relative position relationship between the sealing seat 8, the clamping ring 9 and the silicone ring 10 remains unchanged under the limiting action of the sealing seat 8 and the clamping ring 9), the silicone ring 10 restores deformation under its own elasticity (i.e. the maximum outer diameter of the silicone ring 10 is greater than the maximum outer diameter of the sealing seat 8 again), when the water flow passes through the gap between the threaded ring 3 and the silicone ring 10, the water flow flows along the outer side of the silicone ring 10, at which time the maximum outer diameter of the silicone ring 10 is greater than the maximum outer diameter of the sealing seat 8, so that the silicone ring 10 blocks the drainage flow channel 801, so that the water flow cannot enter the drainage flow channel 801, and then the water flow cannot enter the storage cavity 131.

[0050] When the fire does not occur, but the sealing of the silica gel ring 10 fails, the water in the connecting valve 2 passes through the silica gel ring 10 and moves to the gap between the sealing seat 8 and the threaded ring 3, then the water flows along the drainage flow channel 801, and finally flows into the gap between the sealing seat 8 and the storage cylinder 12, at this time the water flows into the storage cavity 131 through the liquid inlet hole 121, the water-swellable resin in the storage cavity 131 swells by absorbing water, the swollen water-swellable resin pushes the push ring 13 to move upwards, the push ring 13 pushes the swing piece 14 to swing, the swing piece 14 presses the extrusion ring 15 downwards, the extrusion ring 15 deforms the outer edge of the shielding piece 11, the outer edge of the shielding piece 11 contacts the support 5 and blocks the fan-shaped through hole on the support 5; at the same time that the swing piece 14 presses the extrusion ring 15 downwards, the extrusion ring 15 gives the swing piece 14 an upward reaction force, so that the swing piece 14 drives the storage cylinder 12, the push ring 13, the sealing seat 8 and the clamping ring 9 to move upwards, the sealing seat 8 and the clamping ring 9 extrude the silica gel ring 10, so that the silica gel ring 10 forms a sealing surface with the threaded ring 3, the sealing seat 8 and the clamping ring 9 again, preventing the water in the connecting valve 2 from continuing to leak out; when the staff regularly inspects the device, the staff closes the fire pipe network and removes the main sleeve 1 (the connecting valve 2 and the threaded ring 3 remain in the fire pipe network), the main sleeve 1 drives all the parts except the connecting valve 2 and the threaded ring 3 to be removed, then the staff replaces the silica gel ring 10 and the water-swellable resin in the storage cavity 131, after the replacement is completed, the main sleeve 1 together with all the parts in it is installed on the threaded ring 3, completing the maintenance of the device.

[0051] Please refer to Figure 2 , Figure 3 and Figure 8 , further comprising: a limiting ring 16 threadedly connected in the main sleeve 1, the limiting ring 16 is located between the fusible alloy ring 4 and the sealing seat 8, the limiting ring 16 is provided with an arc-shaped through hole, the inner diameter of the limiting ring 16 is smaller than the maximum outer diameter of the sealing seat 8, the limiting ring 16 is used for limiting the sealing seat 8, and the shielding piece 11 contacts the support 5.

[0052] In the above scheme, the purpose is to solve the problem that when the rain shower head is installed in a high humidity environment, external water vapor enters the rain shower head, causing the parts in the rain shower head to rust and accelerating the aging of the sealing ring in the rain shower head. The scheme uses the shielding piece 11 to block the fan-shaped hole on the bracket 5, preventing external water vapor from entering between the bracket 5 and the sealing seat 8. On the one hand, it reduces the impact of external water vapor on the service life of the silica gel ring 10, and on the other hand, it ensures the dryness of the superabsorbent resin in the storage cavity 131, improving the accuracy of monitoring the device for water leakage. The number of arc-shaped holes on the limiting ring 16 can be multiple, used for water flow when a fire occurs; initially, the shielding piece 11 is in contact with the bracket 5 (the difference between the shielding piece 11 and the silica gel ring 10 is that the silica gel ring 10 will be affected by the pressure fluctuation in the fire pipe network, causing the silica gel ring 10 to be compressed and relaxed frequently, resulting in fatigue deformation; before the device leaks, the shielding piece 11 is always subjected to constant pressure), and the shielding piece 11 completely blocks the fan-shaped hole on the bracket 5.

[0053] The working principle of the above scheme is as follows: when the device leaks, repeat the above steps, the superabsorbent resin in the storage cavity 131 expands and drives the ring 13 to drive the swing piece 14 to swing, which presses the extrusion ring 15, increases the extrusion force between the outer edge of the shielding piece 11 and the bracket 5, improves the sealing between the two, and prevents water leakage between the bracket 5 and the sealing seat 8 from leaking to the outside.

[0054] When the device leaks and encounters a fire, the external temperature is transferred to the fusible alloy ring 4, causing the fusible alloy ring 4 to melt. At this time, the bracket 5, rotating disc 6, fixed rod 7, sealing seat 8, clamping ring 9, silica gel ring 10, shielding piece 11, storage cylinder 12, pushing ring 13, swing piece 14 and extrusion ring 15 move down together. The sealing seat 8 first contacts and rests on the limiting ring 16, at which time the sealing seat 8, clamping ring 9, silica gel ring 10, shielding piece 11, storage cylinder 12, pushing ring 13, swing piece 14 and extrusion ring 15 stop moving down. Finally, the bracket 5 rests at the smallest inner diameter of the main body sleeve 1, at which time the shielding piece 11 loses contact with the bracket 5 and unblocks the fan-shaped hole on the bracket 5. Subsequently, the water flow in the connecting valve 2 passes through the gap between the threaded ring 3 and the silica gel ring 10, the arc-shaped hole of the limiting ring 16, the gap between the shielding piece 11 and the bracket 5, the fan-shaped hole on the bracket 5 and the smallest inner diameter of the main body sleeve 1, and then discharged to the outside to extinguish the fire.

[0055] Please refer to Figures 6-9Further comprising: a T-shaped piece 17, which is limitingly and slidingly connected to the sealing seat 8, the T-shaped piece 17 is provided with a limiting clamping groove 171, the support 5 and the fixed rod 7 are slidingly connected with the T-shaped piece 17; a U-shaped piece 18, which is limitingly and slidingly connected in the support 5, the U-shaped piece 18 limits the T-shaped piece 17 through the limiting clamping groove 171; a transmission piece 19, which is fixedly connected between the U-shaped piece 18 and the support 5, is used for sensing the change of external temperature and pushing the U-shaped piece 18 to move; the communication hole is provided on the clamping ring 9, the sealing piece 20 is fixedly connected in the communication hole of the clamping ring 9, the sealing piece 20 is a shape memory alloy, and the sealing piece 20 is in contact with the T-shaped piece 17.

[0056] In the above scheme, the problem that the existing deluge nozzle cannot act when fire occurs due to aging of the sealing ring or corrosion of the parts is solved; when fire occurs, the water pressure in the fire pipe network is used to push the T-shaped piece 17 to quickly move downward to knock the sealing seat 8 and the support 5, so that the sealing seat 8 and the support 5 move downward and perform fire extinguishing operation; the upper part of the T-shaped piece 17 is a solid metal block, which can provide considerable impact on the sealing seat 8 and the support 5 when it moves downward; the U-shaped piece 18 is made of elastic metal material, the U-shaped piece 18 is inserted into the limiting clamping groove 171 to limit the T-shaped piece 17 at the beginning, since the lower part of the T-shaped piece 17 slides in the support 5, the U-shaped piece 18 can always limit the T-shaped piece 17 before the U-shaped piece 18 and the T-shaped piece 17 completely lose contact; the diameter of the communication hole on the clamping ring 9 is greater than the maximum diameter of the T-shaped piece 17, and the sealing piece 20 is a hemispherical shell shape that protrudes upward in the state of no force (the state of the sealing piece 20 in the drawing is a circular piece shape formed by the upper side of the sealing piece 20 being pressed by the water in the fire pipe network and being supported by the upper side of the T-shaped piece 17); the transmission piece 19 is a shape memory alloy with double memory effect (the alloy restores the shape of the high-temperature phase when heated, and restores the shape of the low-temperature phase when cooled, the temperature at which the transmission piece 19 starts to deform after being heated is called the action temperature of the transmission piece 19), and the action temperature of the transmission piece 19 is equal to the threshold value of the fusible alloy ring 4.

[0057] The working principle of the above scheme is as follows: when fire occurs, the external temperature first melts the fusible alloy ring 4, the fusible alloy ring 4 releases the fixation of the support 5, and at the same time the transmission piece 19 starts to deform, the transmission piece 19 pushes the U-shaped piece 18 to move left, so that the contact area between the U-shaped piece 18 and the limiting clamping groove 171 gradually decreases, until the U-shaped piece 18 completely loses contact with the limiting clamping groove 171, the U-shaped piece 18 releases the limitation of the T-shaped piece 17, at this time the supporting effect of the T-shaped piece 17 on the sealing piece 20 disappears, the water pressure in the fire pipe network pushes the sealing piece 20 to concave downward, the sealing piece 20 pushes the T-shaped piece 17 to quickly move downward, the upper part of the T-shaped piece 17 hits the sealing seat 8 and the support 5, and the impact force is used to make the support 5 and the sealing seat 8 move, so that the silicone ring 10 releases the blockage of the main body sleeve 1 and the connecting valve 2, the water flow is sprayed through the rotating disc 6 to extinguish the fire.

[0058] Finally, it should be noted that the above-mentioned embodiments are merely intended for the purpose of illustration, and are not intended to limit the embodiments. Based on the above descriptions, those skilled in the art can further make other variations and changes of different forms. Here, it is not necessary or possible to enumerate all the embodiments. The obvious variations and changes derived therefrom are still within the protection scope of the embodiments.

Claims

1. A rotary deluge sprinkler characterized by, The utility model relates to a kind of air humidity monitoring device, including: Main body sleeve (1), the upper part of the main body sleeve (1) is threadedly connected with threaded ring (3), the upper side of the threaded ring (3) is fixedly connected with connecting valve (2), the connecting valve (2) is in contact with the main body sleeve (1), the main body sleeve (1) is fixedly connected with fusible alloy ring (4) in, the fusible alloy ring (4) is fixedly connected with support (5), the maximum outer diameter of the support (5) is greater than the minimum inner diameter of the main body sleeve (1), the main body sleeve (1) is used to limit the support (5), the maximum outer diameter of the support (5) is less than the maximum outer diameter of the fusible alloy ring (4); Fixed rod (7) is threadedly connected to the support (5), and the fixed rod (7) is rotatably connected with rotary disc (6); Sealing seat (8) is slidably connected to the support (5), and the outer side of the sealing seat (8) is provided with drainage flow channel (801), the sealing seat (8) is fixedly connected with clamping ring (9), the clamping ring (9) is slidably connected with silica gel ring (10), and the threaded ring (3) and the sealing seat (8) are in contact with the silica gel ring (10); Shielding sheet (11) is fixedly connected to the sealing seat (8), for shielding the support (5); Monitoring assembly is arranged on the sealing seat (8), for monitoring the air humidity between the sealing seat (8) and the support (5); Transmission assembly is arranged on the shielding sheet (11), for extruding the shielding sheet (11); The monitoring assembly comprises: Storage cylinder (12) is fixedly connected to the sealing seat (8), and the storage cylinder (12) is slidably connected with push ring (13), and the storage cylinder (12) and the push ring (13) jointly form storage cavity (131), the storage cavity (131) stores water-absorbing swelling medium, and the inner side of the storage cylinder (12) is provided with liquid inlet hole (121) in communication with the storage cavity (131).

2. A rotary sprinkler head as defined in claim 1 wherein, A plurality of rotating steel balls (701) are embedded on the fixed rod (7), the rotating steel balls (701) are in contact with the rotary disc (6), and the rotary disc (6) is provided with an inclined plate, so as to facilitate the rotation of the rotary disc (6) under the impact of water flow.

3. A rotary sprinkler head as defined in claim 1 wherein, An annular inclined surface (122) is arranged on the storage cylinder (12), for guiding water flow into the sealing seat (8) and the push ring (13).

4. A rotary sprinkler head as defined in Claim 3 wherein, The transmission assembly comprises: A plurality of swing members (14) are rotatably connected to the storage cylinder (12); Extrusion ring (15) is fixedly connected to the shielding sheet (11), and the extrusion ring (15) and the push ring (13) are respectively in contact with the two ends of the swing member (14) away from the storage cylinder (12).

5. A rotary sprinkler head as defined in Claim 4 wherein, The minimum distance between the rotating position of the swing member (14) on the storage cylinder (12) and the side of the push ring (13) away from the storage cylinder (12) is greater than the minimum distance between the rotating position of the swing member (14) on the storage cylinder (12) and the extrusion ring (15).

6. A rotary sprinkler according to Claim 3 wherein: The distance between the sealing seat (8) and the connecting valve (2) is greater than the height of the clamping ring (9).

7. A rotary sprinkler head as described in claim 4 wherein, Further comprising: A limiting ring (16) is threadedly connected in the main sleeve (1), the limiting ring (16) is located between the fusible alloy ring (4) and the sealing seat (8), the limiting ring (16) is provided with an arc-shaped through hole, the inner diameter of the limiting ring (16) is smaller than the maximum outer diameter of the sealing seat (8), the limiting ring (16) is used for limiting the sealing seat (8), and the shielding piece (11) is in contact with the support (5).

8. A rotary sprinkler according to claim 7 wherein: Further comprising: A T-shaped piece (17) is limitingly and slidably connected to the sealing seat (8), the T-shaped piece (17) is provided with a limiting clamping groove (171), and the support (5) and the fixed rod (7) are slidably connected with the T-shaped piece (17); A U-shaped piece (18) is limitingly and slidably connected in the support (5), the U-shaped piece (18) limits the T-shaped piece (17) through the limiting clamping groove (171); A transmission piece (19) is fixedly connected between the U-shaped piece (18) and the support (5) and is used for sensing external temperature change and pushing the U-shaped piece (18) to move.

9. A rotary sprinkler according to claim 8 wherein: The clamping ring (9) is provided with a communication hole, a sealing piece (20) is fixedly connected in the communication hole of the clamping ring (9), the sealing piece (20) is a shape memory alloy, and the sealing piece (20) is in contact with the T-shaped piece (17).

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