Sprinkler head

Abstract

The sprinkler head comprises a sprinkler body and a connecting body in threaded connection with the inner side of the bottom of the sprinkler body, a water spraying opening is formed in the inner side of the sprinkler body, a sealing assembly is arranged below the water spraying opening and located on the inner side of the connecting body, and the sealing assembly comprises a sealing seat body and a sealing gasket embedded in the inner side of the sealing seat body; a water splashing assembly is arranged on the inner side of the connecting body and located below the sealing seat body, the sealing seat body comprises a first sealing seat or a second sealing seat, a bottom spraying assembly is arranged on the inner side of the second sealing seat, and an action assembly is arranged on the inner side of the connecting body and located below the water splashing assembly. Through the design of the water splashing assembly, the water spraying range is widened, the water spraying uniformity is improved, through the structural design of the sealing assembly, the sealing performance of the sprinkler head in a non-working state is improved, the situation of water seepage caused by too large water pressure in the non-working state is avoided, and through the design of the bottom spraying assembly, the water spraying efficiency is improved. The sprinkler head can carry out fire fighting on a fire fighting area at the bottom of the sprinkler head, and therefore adaptability and practicability are improved.

Description

Technical Field

[0001] The invention relates to the technical field of fire fighting equipment, in particular to a sprinkler head. Background Art

[0002] Sprinklers are used in fire sprinkler systems. When a fire occurs, the fire extinguishing medium is sprayed out and hits the deflector plate, then atomized and sprayed out to extinguish the fire. After installation, the flush sprinkler can be flush with the ceiling, and the appearance is beautiful. When the sprinkler is triggered, the deflector plate pops out from the sprinkler. The deflector plate needs to be hidden inside the sprinkler, and it must also be ensured that the deflector plate can stop at a certain height below the ceiling when it pops out to ensure the splashing area.

[0003] When traditional flush sprinkler heads spray water, the water flow is restricted by the ceiling and the sprinkler head structure, which may affect the uniformity and range of the water spray, which may affect the fire extinguishing effect of the sprinkler head.

[0004] On the other hand, the working principle of most traditional flush sprinkler heads is to extinguish fires by spraying water and then atomizing and spraying it after hitting the splash plate. After hitting the splash plate, the water splashes toward the periphery of the splash plate, and the splashed water falls to the ground to extinguish the fire. This fire extinguishing method can usually only extinguish fires in the splash area around the splash plate, but there is still a large area directly below the fire extinguishing nozzle that the traditional sprinkler head cannot reach. This part is called a fire blind area. If you want to cover the fire area to a more complete area to solve the appearance of a fire blind area, you need to install multiple sprinkler heads on the top so that their mutual splash areas can cover each other's fire blind areas. However, this method requires installing multiple sprinkler heads on the top, and the installation process is relatively complicated. It is necessary to lay very complicated fire water pipes on the top, which consumes a lot of manpower and material resources. In addition, the market price of flush sprinkler heads is relatively high, which greatly increases the cost. On the other hand, arranging multiple sprinkler heads on the top also affects the aesthetics of the decoration, and the use has certain restrictions, which is not conducive to convenient use.

[0005] Based on this, a sprinkler nozzle is proposed, which provides a new solution to solve the above technical problems. Summary of the invention

[0006] Based on this, it is necessary to provide a sprinkler head to address the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions: The sprinkler nozzle specifically includes a spray body and a connecting body threadedly connected to the inner side of the bottom of the spray body, the inner side of the spray body is provided with a water spray port, a sealing assembly is provided below the water spray port and located inside the connecting body, the sealing assembly includes a sealing seat body and a sealing gasket embedded in the inner side of the sealing seat body, a splashing assembly is provided inside the connecting body and located below the sealing seat body, the sealing seat body includes a sealing seat 1 or a sealing seat 2, a bottom spraying assembly is provided inside the sealing seat 2, and an action assembly is provided inside the connecting body and located below the splashing assembly.

[0008] Preferably, a guide cone is provided on the top of the sealing seat 1 and the sealing seat 2, the sealing seat 1 or the sealing seat 2 abuts against the bottom of the water outlet of the spray body, a pressure chamber is provided on the inner side of the sealing gasket, the top end face of the sealing gasket is fitted with the bottom end face of the water outlet, and the two sides and the bottom face of the sealing gasket are fitted with the sealing seat 1 or the sealing seat 2.

[0009] Preferably, the splashing assembly includes a spring arranged at the bottom of the spray body and located outside the water spray port, the bottom end of the spring is connected to a hanging plate, the top end of the spring is connected to the spray body, a plurality of hanging rod screws are fixedly connected to the bottom of the hanging plate, and a plurality of splashing components are slidably connected to the outside of the hanging rod screws.

[0010] Preferably, the water splashing component comprises a water splashing plate, the water splashing plate is clamped on the inner side of the bottom of the sealing seat body, and a plurality of baffles are arranged on the outer periphery of the water splashing plate.

[0011] Preferably, the splashing component includes a connecting plate, which is clamped on the inner side of the bottom of the sealing seat body, and is slidably connected to the outside of several of the suspension rod screws. The outside of the connecting plate is rotatably connected to a splashing ring, and the outer periphery of the splashing ring is provided with several splashing blades.

[0012] Preferably, the splashing component includes a second connecting plate, which is clamped on the inner side of the bottom of the sealing seat body, and is slidably connected to the outside of several of the suspension screws. The outside of the second connecting plate is rotatably connected to a second splashing ring, and the top edge of the second splashing ring is provided with several second splashing blades. The bottom edge of the second splashing ring and below the second splashing blade are threadedly connected with several adjusting screws, and the top of the adjusting screw passes through the second splashing ring and is fixedly connected to the corresponding second splashing blade.

[0013] Preferably, the bottom spray assembly includes a piston member slidably connected to the inner side of the second sealing seat, a plurality of water inlet holes are provided on the outer periphery of the top of the second sealing seat, the top of the piston member fits with the inner top of the second sealing seat, a sealing ring 1 is embedded on the outer side of the piston member and below the water inlet hole, a flow chamber 1 and a flow chamber 2 are provided on the inner side of the second sealing seat, a piston ring is provided on the piston member and between the flow chamber 1 and the flow chamber 2, at least one sealing ring 2 is embedded on the outer periphery of the piston ring, the piston member is sealed and connected to the second sealing seat through the sealing ring 1 and the sealing ring 2, and a spraying hole is provided on the bottom of the second sealing seat and below the flow chamber 2.

[0014] Preferably, the spray holes are a group of holes with an inclination angle of ~ degrees.

[0015] Preferably, the action component includes a pressure plate abutting against the bottom of the sealing seat body, blocking frames are fixed on both sides of the bottom of the pressure plate, a pair of brackets are provided below the pressure plate and on the inner sides of the two blocking frames, a hinge groove is provided on the inner side of the middle part of the bracket, the two brackets are hinged to each other through the hinge groove, one end of the bracket is provided with an arcuate end face and an abutting end face, the arcuate end face abuts against the bottom of the pressure plate, the bottom of the connecting body extends inwardly to form a retaining ring, the abutting end face of the bracket abuts against the top of the retaining ring, a fusible part is provided on the inner side of the bottom of the two brackets, and a panel is provided below the bracket.

[0016] Preferably, the fusible component includes a glass ball abutting against the inner side of the bottom of the two brackets or a fusible sheet welded to the inner side of the bottom of the two brackets. When the fusible component is set as a glass ball, the panel is fixed to the bottom of the blocking frame, and a release groove is provided on the inner side of the panel and below the bracket; when the fusible component is set as a fusible sheet, the panel is bonded to the fusible sheet by glue.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adopts the design of the baffle plate so that the water flow can be sprayed out from the gap of the baffle plate after hitting the splash plate, and the baffle plate blocks part of the water flow, so that the pressure of the sprayed water flow is increased, so that it can be sprayed to a farther position, thereby increasing the water spraying range; through the structural design of the splash blade 1 and the splash blade 2, after the water flow hits the splash blade 1 or the splash blade 2, the splash circle 1 or the splash circle 2 will be driven to rotate under the action of the water flow force, thereby throwing the sprayed water flow to a farther position, thereby increasing the water spraying range, and the rotating sprayed water flow is more uniform, thereby improving the fire extinguishing effect; through the arrangement of the splash blade 2 and the adjusting screw, the inclination angle of the splash blade 2 on the horizontal plane can be adjusted, so that the distance of the water flow thrown out when the splash blade 2 rotates can be controlled, thereby adapting to different fire fighting environments and improving adaptability.

[0018] 2. The present invention adopts the structural design of the bottom spray assembly, so that when in use, firefighting work can be carried out on the fire blind area directly below the sprinkler nozzle. This can greatly increase the firefighting area of ​​the sprinkler nozzle, increase practicality, and reduce firefighting costs. When in use, there is no need to arrange a large number of sprinkler nozzles on the top, thereby reducing manual labor intensity and reducing the impact on decoration and aesthetics to a certain extent, which is conducive to popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the scheme of the present invention, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 ; Figure 3 The structure of the present invention is partially cut away. Figure 1 ; Figure 4 The structure diagram of the present invention is a partial cross-section diagram. Figure 2 ; Figure 5 It is a schematic diagram of the structure of the support of the present invention; Figure 6 It is a schematic diagram of the structure of the fusible link of the present invention; Figure 7 It is a structural schematic diagram of the hanging plate and the hanging rod screws of the present invention; Figure 8 It is a structural schematic diagram of the sealing pad, the pressure chamber and the sealing seat 2 of the present invention; Fig. 9 It is a structural schematic diagram of the sealing seat 2 and the piston member of the present invention; Fig.10 It is a structural schematic diagram of the present invention; Fig.11 It is a structural schematic diagram of the present invention; Fig.12 It is a schematic structural diagram of a water splashing ring 1 and a water splashing blade 1 of the present invention; Fig.13 It is a schematic diagram of the structure of the second water splashing ring and the second water splashing blade of the present invention; Fig.14 It is a schematic structural diagram of the adjusting screw of the present invention.

[0021] The markings in the figure are as follows: 1. Spray body; 2. Connecting body; 3. Spring; 4. Hanging plate; 5. Hanging rod screw; 6. Pressing plate; 7. Blocking frame; 8. Bracket; 9. Glass ball; 10. Panel; 11. Release groove; 12. Retaining ring; 13. Hinge groove; 14. Fusible piece; 15. Sealing seat one; 16. Sealing gasket; 17. Splashing plate; 18. Retaining plate; 19. Pressure chamber; 20. Sealing seat two; 21. Water inlet hole; 22. Piston member; 23. Sealing ring one; 24. Flow chamber one; 25. Piston ring; 26. Sealing ring two; 27. Flow chamber two; 28. Spraying hole; 31. Abutting sleeve; 32. Connecting plate; 33. Splashing ring one; 34. Splashing blade one; 35. Splashing ring two; 36. Splashing blade two; 37. Adjusting screw; 38. Connecting plate two. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] Embodiment 1 Please refer to Figure 1-14 A sprinkler nozzle provided by the present invention specifically includes a spray body 1 and a coupling body 2 threadedly connected to the inner side of the bottom of the spray body 1, a water spray port is provided on the inner side of the spray body 1, a sealing assembly is provided below the water spray port and located on the inner side of the coupling body 2, the sealing assembly includes a sealing seat body and a sealing gasket 16 embedded in the inner side of the sealing seat body, a splashing assembly is provided on the inner side of the coupling body 2 and located below the sealing seat body, the sealing seat body includes a sealing seat 15 or a sealing seat 20, a bottom spraying assembly is provided on the inner side of the sealing seat 20, and an action assembly is provided on the inner side of the coupling body 2 and located below the splashing assembly. Specifically, through the design of the splashing assembly, the water spraying range and the uniformity of the water spraying are improved, and through the structural design of the sealing assembly, the sealing performance of the sprinkler nozzle in a non-working state is improved, and the occurrence of water seepage due to excessive water pressure in a non-working state is avoided. Through the design of the bottom spraying assembly, the sprinkler nozzle can extinguish the fire in the fire area at its bottom, thereby improving adaptability and practicality.

[0024] Please refer to Figure 3, a guide cone is provided on the top of the sealing seat 15 and the sealing seat 20, the sealing seat 15 or the sealing seat 20 is abutted under the water outlet of the spray body 1, a pressure chamber 19 is provided on the inner side of the sealing gasket 16, the top end surface of the sealing gasket 16 is fitted with the bottom end surface of the water outlet, and the two sides and the bottom surface of the sealing gasket 16 are fitted with the sealing seat 15 or the sealing seat 20. Specifically, through the design of the pressure chamber 19, the water flow in the water outlet of the spray body 1 of the sprinkler head in the non-working state will fill the pressure chamber 19, due to the effect of the water pressure, the outer wall of the sealing gasket 16 can be tightly fitted with the spray body 1 and the sealing seat body, thereby improving the sealing effect, and the greater the water pressure, the tighter the fit of the sealing gasket 16 with the spray body 1 and the sealing seat body, the better the sealing effect, which can effectively avoid the occurrence of water seepage due to excessive water pressure in the non-working state.

[0025] Please refer to Figure 1-14 The splashing assembly includes a spring 3 arranged at the bottom of the spray body 1 and located outside the water spray port, the bottom end of the spring 3 is connected with a hanging plate 4, the top of the spring 3 is connected to the spray body 1, a plurality of hanging rod screws 5 are fixedly connected to the bottom of the hanging plate 4, and a splashing component is slidably connected to the outside of the plurality of hanging rod screws 5. The spring 3 is suspended on the hanging plate 4, and the hanging plate 4 is suspended on the splashing component. When in a fire-fighting state, under the action of water pressure, the splashing component and the sealing assembly will slide down along the hanging rod screws 5 to the bottom position of the connecting body 2 and extend to the outside of the connecting body 2. At this time, the spring 3 at the bottom end of the hanging rod screw 5 where the splashing component is suspended is in a stretched state.

[0026] Please refer to Figure 7 The splashing component includes a splashing plate 17, which is clamped on the inner side of the bottom of the sealing seat body. A plurality of baffles 18 are provided on the periphery of the splashing plate 17. Specifically, in a fire-fighting state, when the water hits the top of the splashing plate 17, it will be sprayed out from the gaps between the baffles 18. Due to the limiting effect of the baffles 18, the pressure of the water sprayed out from the gaps is increased, thereby increasing the water spraying range.

[0027] Please refer to Figure 1-6The action component includes a pressure plate 6 abutting against the bottom of the sealing seat body, and blocking frames 7 are fixed on both sides of the bottom of the pressure plate 6. A pair of brackets 8 are provided below the pressure plate 6 and inside the two blocking frames 7. A hinge groove 13 is provided inside the middle of the bracket 8. The two brackets 8 are hinged to each other through the hinge groove 13. One end of the bracket 8 is provided with an arc end face and an abutting end face. The arc end face abuts against the bottom of the pressure plate 6. The bottom of the connecting body 2 extends inward to form a retaining ring 12. The abutting end face of the bracket 8 abuts against the top of the retaining ring 12. A fusible component is provided on the inner side of the bottom of the two brackets 8. A panel 10 is provided below the bracket 8. The fusible component includes a glass ball 9 abutting against the inner side of the bottom of the two brackets 8 or a fusible piece 14 welded to the inner side of the bottom of the two brackets 8. When the fusible component is set to a glass ball 9, the panel 10 is fixed to the bottom of the blocking frame 7, and a release groove is provided inside the panel 10 and below the bracket 8 11; when the fusible component is set as the fusible sheet 14, the panel 10 is bonded to the fusible sheet 14 by glue. Specifically, the working principle of the action component is that when a fire occurs, the temperature rises, and the fusible component melts or breaks at high temperature. At this time, the bottoms of the two brackets 8 are not supported. Under the pressure of the pressure plate 6, the two brackets 8 move in each other's hinge grooves 13 with the abutment between themselves and the retaining ring 12 as the fulcrum, causing their bottom ends to approach each other, thereby causing the two brackets 8 to fall off from the inside of the connecting body 2. At the same time, the pressure plate 6, the blocking frame 7 and the panel 10 fall off with the bracket 8. At this time, the sealing seat body has no bottom support force, and moves downward to the bottom end of the suspension screw 5 under the action of water pressure. At this time, the splashing component extends out of the bottom of the connecting body 2 and forms a water outlet space between the bottom of the connecting body 2. After the water hits the splashing component, it sprays out from the water outlet space to achieve a fire-fighting effect.

[0028] Embodiment 2 The splashing component adopts a structural design of a splashing plate 17 and a baffle 18. Although it can increase the fire protection range, the uniformity of the water spray may be affected to a certain extent due to the limitation of the nozzle structure. In order to solve the problem of the water spraying range and the water spraying uniformity, this embodiment specifically discloses another structural design of the splashing component. Please refer to the baffle 12 in Figure. The splashing component includes a connecting plate 32, which is clamped on the inner side of the bottom of the sealing seat body, and the connecting plate 32 is slidably connected to the outer side of a plurality of suspension rod screws 5. The outer side of the connecting plate 32 rotates A splash ring 33 is connected, and a plurality of splash blades 34 are arranged on the periphery of the splash ring 33. Specifically, the splash blades 34 are inclined worm wheel blades. When the water flows on the splash blades 34 in the fire fighting state, a vertical downward force will be exerted on the splash blades 34, and the horizontal component force will drive the splash ring 33 to rotate. When the splash ring 33 rotates, the water flow will be thrown out, so that it will be sprayed outward in a spiral shape, thereby making the water spray more uniform, and at the same time increasing the water spray range and improving the fire fighting effect.

[0029] Embodiment 3 This embodiment specifically discloses another structure of the splashing component. For details, please refer to Figure 13-14 The splashing component includes a connecting plate 2 38, which is clamped on the inner side of the bottom of the sealing seat body, and the connecting plate 2 38 is slidably connected to the outside of a plurality of suspension rod screws 5. The outside of the connecting plate 2 38 is rotatably connected with a splashing ring 2 35, and a plurality of splashing blades 2 36 are provided on the top edge of the splashing ring 2 35. A plurality of adjusting screws 37 are threadedly connected to the bottom edge of the splashing ring 2 35 and below the splashing blades 2 36. The top of the adjusting screw 37 passes through the splashing ring 2 35 and is fixedly connected to the corresponding splashing blades 2 36. Specifically, when in a fire-fighting state, the water flow hits the connecting plate 2 38 and then sprays out from the gap of the splashing blades 2 36. The water flow hits the splashing When the water blade 36 is on the second water blade 36, a force will be exerted on it, and the splashing ring 35 and the splashing blade 36 will rotate as a whole under the action of this force. When the splashing ring 35 rotates, the water flow will be thrown out, so that it will be sprayed outward in a spiral shape, thereby making the water spray more uniform and increasing the water spraying range. At the same time, through the setting of the adjusting screw 37, the inclination angle of the second water blade 36 in the horizontal plane can be adjusted, and the inclination angle of the second water blade 36 can be adjusted according to the fire protection environment. The inclination angles of the second water blade 36 are different, and the sizes of the gaps between them are different. Therefore, the water pressure of the sprayed water is different, and the spraying distance is different, thereby adapting to different fire protection environments and improving adaptability.

[0030] Embodiment 4 This embodiment discloses the specific structure of the bottom spray assembly, please refer to Figure 1-14The bottom spray assembly includes a piston member 22 slidably connected to the inner side of the sealing seat 20. A plurality of water inlet holes 21 are provided on the outer periphery of the top of the sealing seat 20. The top of the piston member 22 fits with the inner top of the sealing seat 20. A sealing ring 23 is embedded on the outer side of the piston member 22 and below the water inlet hole 21. A flow chamber 24 and a flow chamber 27 are provided on the inner side of the sealing seat 20. A piston ring 25 is provided on the piston member 22 and between the flow chamber 1 24 and the flow chamber 27. At least one sealing ring 26 is embedded on the outer periphery of the piston ring 25. The piston member 22 is sealed and connected to the sealing seat 20 through the sealing ring 1 23 and the sealing ring 26. A spray hole 28 is provided at the bottom of the sealing seat 20 and below the flow chamber 27. The spray hole 28 is a hole group with an inclination angle of 0 to 90 degrees. Specifically, the top of the piston member 22 is designed to be umbrella-shaped, and a bottom edge of the umbrella-shaped is provided. Several support rods, when in a non-firefighting state, the pressure plate 6 presses against the bottom of the piston member 22, and the top of the piston member 22 fits against the top of the inner side of the sealing seat 20. Under the action of the sealing ring 1 23 and the sealing ring 26, the piston member 22 and the sealing seat 20 are in a sealed state. When in a firefighting state, the action component is opened and the pressure plate 6 falls off. At this time, the piston member 22 has no upward supporting force. Under the action of water pressure, the piston member 22 will move downward until the support rod presses against the inner protruding part of the sealing seat 20. At this time, the piston member 22 is separated from the inner wall of the inner top of the sealing seat 20, and the sealing ring 26 moves to the inside of the flow chamber 27. At the same time, the flow chamber 1 24 and the flow chamber 27 are connected to each other, and the water flows from the water inlet hole 21 into the inner side of the flow chamber 1 24 and is sprayed out through the spray hole 28, thereby performing firefighting operations on the area directly below the sprinkler head.

[0031] The specific working principle of a sprinkler nozzle provided by the present invention is: When the sprinkler head is in use and is in a non-working state, the two brackets 8 are hinged to each other, the fusible element is clamped between the bottoms of the two brackets 8, and the sealing seat body is pressed against the bottom end face of the water outlet of the spray body 1 under the action of the pressure plate 6. At this time, the spring 3 is compressed, and the water flows into the pressure chamber 19. The sealing gasket 16 seals the spray body 1 and the sealing seat body under the action of the water flow; at the same time, the pressure plate 6 presses against the bottom of the piston member 22, and the top of the piston member 22 fits against the top of the inner side of the sealing seat 20. Under the action of the sealing ring 1 23 and the sealing ring 26, the piston member 22 and the sealing seat 20 are in a sealed state; When a fire occurs, the fire fighting environment temperature rises, and the fusible parts melt or rupture under high temperature. At this time, the bottoms of the two brackets 8 are not supported. Under the pressure of the pressure plate 6, the two brackets 8 move in each other's hinge grooves 13 with the abutment between themselves and the retaining ring 12 as the fulcrum, causing their bottom ends to approach each other, thereby causing the two brackets 8 to fall off from the inside of the connecting body 2. At the same time, the pressure plate 6, the blocking frame 7 and the panel 10 fall off with the brackets 8. At this time, the sealing seat body has no bottom support force, and moves downward to the bottom end of the suspension rod screw 5 under the action of water pressure. At this time, the splashing component extends out of the bottom of the connecting body 2 and forms a water outlet space between the bottom of the connecting body 2. After the water hits the splashing component, it sprays out from the water outlet space to achieve a fire fighting effect. When the splashing member is set as a splash plate 17, when the water flow hits the top of the splash plate 17, it will be sprayed out from the gap between the baffles 18 to perform fire fighting; When the water splashing component is configured as a connecting plate 32, a water splashing ring 33 and a water splashing blade 34, when the water flow hits the water splashing blade 34, a vertical downward force will be exerted on the water splashing blade 34, and its horizontal component force will drive the water splashing ring 33 to rotate. When the water splashing ring 33 rotates, the water flow will be thrown out, so that it will be sprayed outward in a spiral shape to perform firefighting work; When the water splashing parts are configured as the second connection plate 38, the second splashing ring 35, the second splashing blade 36 and the adjusting screw 37, the water flow hits the second connection plate 38 and then sprays out from the gap of the second splashing blade 36. When the water flow hits the second splashing blade 36, a force is exerted on it. The second splashing ring 35 and the second splashing blade 36 rotate as a whole under the action of this force. When the second splashing ring 35 rotates, the water flow is thrown out, so that it is sprayed outward in a spiral shape to perform firefighting work; On the other hand, when the pressure plate 6 falls off, the piston member 22 has no upward supporting force. Under the action of water pressure, the piston member 22 will move downward until the support rod is against the protruding part of the inner side of the sealing seat 20. At this time, the piston member 22 is separated from the inner wall of the inner top of the sealing seat 20, and the sealing ring 26 moves to the inside of the flow chamber 27. At the same time, the flow chamber 1 24 and the flow chamber 2 27 are connected to each other. Water flows from the water inlet hole 21 into the inside of the flow chamber 1 24 and is sprayed out through the spray hole 28, thereby performing fire fighting operations on the area directly below the sprinkler head.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A sprinkler head, characterized in that: The invention comprises a spray body (1) and a connecting body (2) threadedly connected to the inner side of the bottom of the spray body (1), the inner side of the spray body (1) is provided with a water spray port, a sealing assembly is provided below the water spray port and located inside the connecting body (2), the sealing assembly comprises a sealing seat body and a sealing gasket (16) embedded inside the sealing seat body, a splashing assembly is provided inside the connecting body (2) and located below the sealing seat body, the sealing seat body comprises a sealing seat 1 (15) or a sealing seat 2 (20), a bottom spraying assembly is provided inside the sealing seat 2 (20), and an action assembly is provided inside the connecting body (2) and located below the splashing assembly.

2. A sprinkler nozzle according to claim 1, characterized in that: A guide cone is provided at the top of the sealing seat 1 (15) and the sealing seat 2 (20); the sealing seat 1 (15) or the sealing seat 2 (20) is abutted against the bottom of the water outlet of the spray body (1); a pressure chamber (19) is provided on the inner side of the sealing gasket (16); the top end surface of the sealing gasket (16) is in contact with the bottom end surface of the water outlet; and the two sides and the bottom surface of the sealing gasket (16) are in contact with the sealing seat 1 (15) or the sealing seat 2 (20).

3. A sprinkler head according to claim 1, characterized in that: The water splashing assembly comprises a spring (3) arranged at the bottom of the spray body (1) and located outside the water spraying port, the bottom end of the spring (3) is connected to a hanging plate (4), the top end of the spring (3) is connected to the spray body (1), the bottom of the hanging plate (4) is fixedly connected to a plurality of hanging rod screws (5), and the outsides of the plurality of hanging rod screws (5) are slidably connected to water splashing components.

4. A sprinkler head according to claim 3, characterized in that: The water splashing component comprises a water splashing plate (17), the water splashing plate (17) being clamped on the inner side of the bottom of the sealing seat body, and a plurality of baffles (18) being provided on the outer periphery of the water splashing plate (17).

5. A sprinkler head according to claim 3, characterized in that: The water splashing component comprises a connecting plate (32), the connecting plate (32) being clamped on the inner side of the bottom of the sealing seat body, the connecting plate (32) being slidably connected to the outer side of a plurality of the suspension rod screws (5), the outer side of the connecting plate (32) being rotatably connected to a water splashing ring (33), and the outer periphery of the water splashing ring (33) being provided with a plurality of water splashing blades (34).

6. A sprinkler head according to claim 3, characterized in that: The splashing component comprises a second connection plate (38), wherein the second connection plate (38) is clamped on the inner side of the bottom of the sealing seat body, the second connection plate (38) is slidably connected to the outside of a plurality of the suspension rod screws (5), the outside of the second connection plate (38) is rotatably connected to a second splashing ring (35), the top edge of the second splashing ring (35) is provided with a plurality of second splashing blades (36), the bottom edge of the second splashing ring (35) and located below the second splashing blades (36) are threadedly connected with a plurality of adjusting screws (37), the top of the adjusting screw (37) passes through the second splashing ring (35) and is fixedly connected to the corresponding second splashing blade (36).

7. A sprinkler head according to claim 1, characterized in that: The bottom spray assembly comprises a piston member (22) slidably connected to the inner side of the second sealing seat (20); a plurality of water inlet holes (21) are provided on the outer periphery of the top of the second sealing seat (20); the top of the piston member (22) is fitted with the inner top of the second sealing seat (20); a sealing ring (23) is embedded on the outer side of the piston member (22) and below the water inlet holes (21); and a flow chamber (24) and a flow chamber (27) are provided on the inner side of the second sealing seat (20). ), a piston ring (25) is provided on the piston member (22) and located between the first flow chamber (24) and the second flow chamber (27), at least one second sealing ring (26) is embedded in the outer periphery of the piston ring (25), the piston member (22) is sealedly connected to the second sealing seat (20) through the first sealing ring (23) and the second sealing ring (26), and a spray hole (28) is provided at the bottom of the second sealing seat (20) and located below the second flow chamber (27).

8. A sprinkler head according to claim 7, characterized in that: The spray holes (28) are a group of holes with an inclination angle of 0 to 90 degrees.

9. A sprinkler head according to claim 1, characterized in that: The action assembly comprises a pressure plate (6) abutting against the bottom of the sealing seat body, blocking frames (7) are fixed on both sides of the bottom of the pressure plate (6), a pair of brackets (8) are provided below the pressure plate (6) and inside the two blocking frames (7), a hinge groove (13) is provided inside the middle of the bracket (8), the two brackets (8) are hinged to each other through the hinge groove (13), one end of the bracket (8) is provided with an arc end face and an abutting end face, the arc end face abuts against the bottom of the pressure plate (6), the bottom of the connecting body (2) extends inwardly to form a retaining ring (12), the abutting end face of the bracket (8) abuts against the top of the retaining ring (12), a fusible part is provided inside the bottom of the two brackets (8), and a panel (10) is provided below the bracket (8).

10. A sprinkler head according to claim 9, characterized in that: The fusible component comprises a glass ball (9) abutting against the inner sides of the bottoms of the two brackets (8) or a fusible sheet (14) welded to the inner sides of the bottoms of the two brackets (8); when the fusible component is the glass ball (9), the panel (10) is fixed to the bottom of the blocking frame (7), and a release groove (11) is provided inside the panel (10) and below the brackets (8); when the fusible component is the fusible sheet (14), the panel (10) is bonded to the fusible sheet (14) by glue.

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