Telescopic fire sprinkler

Abstract

The utility model discloses a telescopic fire sprinkler which comprises a sealing installation sleeve with a positioning screw, an electric telescopic rod is fixedly installed on the top of the inner wall of the sealing installation sleeve, the output end of the electric telescopic rod is fixedly connected with a lifting plate, and the bottom of the lifting plate is connected with a locking assembly. The surface of the locking assembly is connected with a water conveying pipe, and the side face of the water conveying pipe is fixedly connected with a stretching hose with a control valve. Through the matching of the structures, the outer cover protection of the fire-fighting spray head is realized by arranging the sealing mounting sleeve and the protective cover, and the height of the fire-fighting spray head is adjusted by driving and adjusting the fire-fighting spray head to rotationally spray water flow, so that the water flow spraying range is changed and enlarged; and an anti-reflux pipe is additionally arranged for carrying out blockage anti-reflux detection on the fire-fighting spray head and carrying out emergency crevasse sprinkling fire extinguishment, so that the fire-fighting spray head can be fixed, telescopically and rotationally adjusted, and a large-range water flow sprinkling fire extinguishment effect can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of fire sprinkler heads, in particular to a retractable fire sprinkler head. Background Art

[0002] In fire extinguishing systems, fire sprinklers are one of the main devices and are generally installed in shopping malls, supermarkets, and hotels. When a fire occurs, the sprinkler is heated, causing the solution in the glass tube to explode, opening the sprinkler to spray water and control the fire.

[0003] For example, a fire sprinkler with patent number CN202020956926.9 belongs to the technical field of fire sprinklers, and the fire sprinkler comprises: a sprinkler seat, in which a flow channel is provided; the sprinkler seat has a first hardness; a sealing seat, which is provided on the sprinkler seat and blocks the flow channel of the sprinkler seat; the sealing seat has a second hardness; wherein, there is a difference between the first hardness and the second hardness, so that the sprinkler seat and the sealing seat are interlocked and connected to form an interlocking ring; the interlocking ring is a closed shape, and the interlocking ring is located on the periphery of the flow channel;

[0004] Since the above-mentioned fire sprinklers are fixedly installed to spray water, the spraying range of the fire sprinklers is relatively fixed. In addition, in some areas, the water contains a large amount of alkali, which may cause the spraying outlet of the fire sprinklers to be blocked, which has a certain adverse effect on actual use and therefore needs to be improved. Utility Model Content

[0005] The purpose of the present utility model is to provide a retractable fire sprinkler, which has the advantages of protecting the outer cover of the fire sprinkler by arranging a sealing installation sleeve and a protective cover, and can adjust the height and rotate the water flow by driving and adjusting the fire sprinkler, thereby changing and increasing the range of water spraying, and adding an anti-backflow pipe to detect the blockage and anti-backflow of the fire sprinkler and emergency breach water sprinkling for fire extinguishing, which brings certain beneficial effects to actual use and solves the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a retractable fire sprinkler, comprising a sealing mounting sleeve with a positioning screw, an electric telescopic rod fixedly mounted on the top of the inner wall of the sealing mounting sleeve, the output end of the electric telescopic rod fixedly connected to a lifting plate, the bottom of the lifting plate connected to a locking assembly, the surface of the locking assembly connected to a water pipe, the side of the water pipe fixedly connected to a stretch hose with a control valve, the inner wall of the water pipe fixedly connected to a water filter mesh plate, the bottom of the water pipe near its inner wall fixedly connected to an anti-backflow pipe, and the bottom of the water pipe rotatably connected to a multi-directional sprinkler disk through a bearing.

[0007] Preferably, a protective cover is fixedly connected to the bottom of the sealing mounting sleeve, the interior of the protective cover is sleeved on the exterior of the water pipe, and a movable groove for the stretch hose to move is provided on the top of the protective cover.

[0008] Preferably, the locking assembly includes an electromagnetic suction sleeve and a magnetic locking plate, the electromagnetic suction sleeve is fixedly connected to the bottom of the lifting plate, the magnetic locking plate is fixedly connected to the top of the water pipe, and the surface of the magnetic locking plate and the inner wall of the electromagnetic suction sleeve are magnetically snap-fitted and adapted.

[0009] Preferably, a force unloading plate is rotatably connected to the top of the water pipe near its inner wall via a bearing, and the outer surface of the force unloading plate is coated with an anti-corrosion and wear-resistant layer.

[0010] Preferably, the number of the water filter mesh plates is at least two, and the at least two water filter mesh plates are connected to the inner wall of the water pipe in upper and lower positions.

[0011] Preferably, the main body of the anti-backflow tube is a funnel-shaped tube, and the top of the anti-backflow tube is fixedly connected to a sealing groove plate with a bottom waterproof pressure sensor. A limiting slide rod is fixedly installed on the bottom of the anti-backflow tube near its inner wall through a bracket, and the surface of the limiting slide rod is slidably connected to a suspended sealing ball, and the bottom of the suspended sealing ball is sealed and abutted against the bottom of the inner wall of the sealing groove plate.

[0012] Preferably, an annular nozzle group is fixedly mounted on the side of the multi-directional nozzle disk, and a semicircular nozzle plate is fixedly mounted on the bottom of the multi-directional nozzle disk.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In the present invention, the operation of the electric telescopic rod can drive the water pipe to adjust the height up and down, and the multiple nozzles in the multi-directional nozzle disk will spray water to perform fire extinguishing operations. Because the multi-directional nozzle disk can be rotatably connected to the water pipe, it can rotate under the driving action of the impact force of its water flow, and the annular nozzle group on the side can perform external spraying of water flow, while the semicircular nozzle plate located below can perform internal spraying of water flow from below, thereby realizing a large-scale docking water flow uniform pavement spraying fire extinguishing operation, and can realize the telescopic rotation adjustment of the fixed fire sprinkler head to achieve a large-scale water flow spraying fire extinguishing effect; in the present invention, the stretch hose is provided to supply water to the connecting pipe in the water supply pipeline, and is provided A force unloading plate is provided to carry out rotational force unloading of the contact water flow, which can provide subsequent buffering for the water flow to filter out impurities in the water through multiple upper and lower water filter screens. If the water flow is blocked and supplemented with backflow, the suspended sealing ball can move upward under the action of the backflow water. Under the action of the limit slide bar, the suspended sealing ball can be driven upward by the buoyancy of the water to abut against the sealing groove plate. The pressure is sensed by the waterproof pressure sensor, and the regional network is stopped for emergency treatment to increase the water pressure impact force, and the blocking structure inside the water pipe is impacted and destroyed to supply a large amount of water, so as to avoid the spread of fire until the flame alarm cannot sense the flame. It can realize the filtering and anti-blocking, blockage and backflow detection of fire sprinklers and the emergency break water sprinkling and fire extinguishing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the external structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the sealing installation sleeve in the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the water pipe in the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the anti-backflow pipe in the utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the semicircular nozzle plate in the present invention.

[0020] In the figure: 1. Sealing installation sleeve; 2. Electric telescopic rod; 3. Lifting plate; 4. Water supply pipe; 5. Stretch hose; 6. Water filter screen; 7. Anti-backflow pipe; 8. Multi-directional nozzle plate; 9. Protective cover; 10. Electromagnetic suction sleeve; 11. Magnetic locking plate; 12. Unloading plate; 13. Sealing groove plate; 14. Limiting slide rod; 15. Suspended sealing ball; 16. Annular nozzle group; 17. Semicircular nozzle plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0022] Example 1, please refer to Figures 1 to 5 The utility model provides a technical solution: a retractable fire sprinkler, comprising a sealing mounting sleeve 1 with a positioning screw, an electric telescopic rod 2 fixedly mounted on the top of the inner wall of the sealing mounting sleeve 1, the output end of the electric telescopic rod 2 fixedly connected to a lifting plate 3, the bottom of the lifting plate 3 is connected to a locking assembly, the surface of the locking assembly is connected to a water pipe 4, the side of the water pipe 4 is fixedly connected to a stretch hose 5 with a control valve, the inner wall of the water pipe 4 is fixedly connected to a water filter mesh plate 6, the bottom of the water pipe 4 near its inner wall is fixedly connected to an anti-backflow pipe 7, and the bottom of the water pipe 4 is rotatably connected to a multi-directional sprinkler disk 8 through a bearing.

[0023] Furthermore, a protective cover 9 is fixedly connected to the bottom of the sealing mounting sleeve 1, the interior of the protective cover 9 is sleeved on the outside of the water pipe 4, and a movable groove for the stretch hose 5 to move is provided on the top of the protective cover 9. The added protective cover 9 can be used to protect and store the water pipe 4 under normal conditions.

[0024] Furthermore, the locking assembly includes an electromagnetic suction sleeve 10 and a magnetic locking plate 11. The electromagnetic suction sleeve 10 is fixedly connected to the bottom of the lifting plate 3, and the magnetic locking plate 11 is fixedly connected to the top of the water pipe 4. The surface of the magnetic locking plate 11 and the inner wall of the electromagnetic suction sleeve 10 are magnetically engaged and adapted. With the locking and disassembly effect of the electromagnetic suction sleeve 10 and the magnetic locking plate 11, the disassembly and assembly operation of the water pipe 4 on the lifting plate 3 can be carried out.

[0025] Furthermore, a ring-shaped nozzle group 16 is fixedly installed on the side of the multi-directional nozzle disk 8, and a semicircular nozzle plate 17 is fixedly installed on the bottom of the multi-directional nozzle disk 8. The ring-shaped nozzle group 16 on the side sprays water outward, while the semicircular nozzle plate 17 located below can spray water inward from below, thereby realizing a uniform pavement spraying fire extinguishing operation with a large range of docking water flows.

[0026] Example 2, please refer to Figures 1 to 5This embodiment differs from Example 1 in that a load plate 12 is rotatably connected to the top of the water pipe 4 near its inner wall via a bearing. The outer surface of the load plate 12 is coated with an anti-corrosion and wear-resistant layer, and the load plate 12 is provided to provide rotational load relief from the water flow. There are at least two water filter screens 6, each of which is connected to the inner wall of the water pipe 4 in an upper and lower position, allowing the flowing water to subsequently pass through the multiple water filter screens 6 to filter out impurities in the water.

[0027] Furthermore, the main body of the anti-backflow pipe 7 is a funnel-shaped tube, and the top of the anti-backflow pipe 7 is fixedly connected to a sealing groove plate 13 with a bottom waterproof pressure sensor. A limiting slide bar 14 is fixedly installed on the bottom of the anti-backflow pipe 7 near its inner wall through a bracket. The surface of the limiting slide bar 14 is slidably connected with a suspended sealing ball 15. The bottom of the suspended sealing ball 15 is sealed and abutted against the bottom of the inner wall of the sealing groove plate 13. If the water flow is blocked and the backflow is supplemented, the suspended sealing ball 15 can move upward under the action of the backflow water. Under the action of the limiting slide bar 14, the suspended sealing ball 15 can be driven upward by the buoyancy of the water to abut against the sealing groove plate 13, and the pressure is sensed by the waterproof pressure sensor, and the regional network is stopped for emergency treatment to increase the water pressure impact force, and the blocking structure inside the water pipe 4 is impacted and destroyed to supply a large amount of water, thereby preventing the spread of fire until the flame alarm can no longer sense the flame.

[0028] Working principle: When this retractable fire sprinkler is in use, the staff can use the positioning screw to install the entire fire sprinkler on the wall, and the fire sprinkler is mostly installed on the ceiling of the roof to spray water in the event of an accidental fire. In order to facilitate the adjustment of the water spraying volume at the fire scene, the fire extinguishing treatment can be carried out by moving the sprinkler up and down, that is, the operation of the electric telescopic rod 2 can drive the water pipe 4 to perform telescopic adjustment of the up and down height, and the stretch hose 5 is the connecting pipe in the water supply pipe for water supply, and a force unloading plate 12 is provided to perform rotational force unloading of the contact water flow, which can provide subsequent buffering of the water flow through the upper and lower multiple water filter screens 6 to filter impurities in the water, and the water flow is sprayed out through the multiple sprinklers in the multi-directional sprinkler disk 8 for fire extinguishing operation. Because the multi-directional sprinkler disk 8 can be rotatably connected to the water pipe 4, it can be placed under the impact of the water flow. The fire sprinkler 10 is rotated under the driving action of the force, and the annular sprinkler group 16 on the side is used for external spraying of water flow, while the semicircular nozzle plate 17 located below is used for internal spraying of water flow from below, so as to realize the uniform pavement spraying and fire extinguishing operation of docking water flow in a large range. If the water flow is blocked and the backflow is supplemented, the suspended sealing ball 15 can move upward under the action of the backflow water, and under the action of the limiting slide bar 14, the suspended sealing ball 15 can be driven by the buoyancy of the water to abut against the sealing groove plate 13, and the pressure is sensed by the waterproof pressure sensor, and the regional network is stopped for emergency treatment to increase the water pressure impact force, and the blocking structure inside the water pipe 4 is impacted and destroyed to supply a large amount of water source, so as to avoid the spread of fire until the flame alarm can no longer sense the flame, and the telescopic rotation adjustment of the fixed fire sprinkler can be realized to spray water flow for fire extinguishing effect in a large range.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A retractable fire sprinkler, comprising a sealing mounting sleeve (1) with a positioning screw, characterized in that: An electric telescopic rod (2) is fixedly mounted on the top of the inner wall of the sealing mounting sleeve (1), an output end of the electric telescopic rod (2) is fixedly connected to a lifting plate (3), a bottom of the lifting plate (3) is connected to a locking assembly, a surface of the locking assembly is connected to a water pipe (4), a side of the water pipe (4) is fixedly connected to a stretch hose (5) with a control valve, an inner wall of the water pipe (4) is fixedly connected to a water filter screen (6), a bottom of the water pipe (4) near its inner wall is fixedly connected to an anti-backflow pipe (7), and the bottom of the water pipe (4) is rotatably connected to a multi-directional nozzle disk (8) via a bearing.

2. A retractable fire sprinkler according to claim 1, characterized in that: The bottom of the sealing installation sleeve (1) is fixedly connected to a protective cover (9), the interior of the protective cover (9) is sleeved on the outside of the water pipe (4), and the top of the protective cover (9) is provided with a movable groove for the stretch hose (5) to move.

3. The retractable fire sprinkler according to claim 1, characterized in that: The locking assembly comprises an electromagnetic suction sleeve (10) and a magnetic locking plate (11), wherein the electromagnetic suction sleeve (10) is fixedly connected to the bottom of the lifting plate (3), and the magnetic locking plate (11) is fixedly connected to the top of the water pipe (4), and the surface of the magnetic locking plate (11) and the inner wall of the electromagnetic suction sleeve (10) are magnetically engaged and adapted.

4. The retractable fire sprinkler according to claim 1, characterized in that: The top of the water pipe (4) near its inner wall is rotatably connected to a force unloading plate (12) via a bearing, and the outer surface of the force unloading plate (12) is coated with an anti-corrosion and wear-resistant layer.

5. The retractable fire sprinkler according to claim 1, characterized in that: The number of the water filter screens (6) is at least two, and the at least two water filter screens (6) are connected to the inner wall of the water delivery pipe (4) in upper and lower positions.

6. The retractable fire sprinkler according to claim 1, characterized in that: The main body of the anti-backflow tube (7) is a funnel-shaped tube. The top of the anti-backflow tube (7) is fixedly connected to a sealing groove plate (13) with a bottom waterproof pressure sensor. A limiting slide bar (14) is fixedly installed on the bottom of the anti-backflow tube (7) near its inner wall through a bracket. A suspended sealing ball (15) is slidably connected to the surface of the limiting slide bar (14). The top of the suspended sealing ball (15) is in sealing contact with the bottom of the inner wall of the sealing groove plate (13).

7. The retractable fire sprinkler according to claim 1, characterized in that: An annular nozzle group (16) is fixedly mounted on the side of the multi-directional nozzle disc (8), and a semi-circular nozzle plate (17) is fixedly mounted on the bottom of the multi-directional nozzle disc (8).

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