Hidden sprinkler head

Abstract

The utility model discloses a concealed sprinkler head, which belongs to the technical field of fire-fighting equipment and comprises a connecting pipe, a sleeve arranged at the lower end of the connecting pipe, a yoke arm frame arranged at the lower end of the sleeve, a splash tray arranged at the lower end of the yoke arm frame, a plurality of cover pieces arranged on the outer side of the sleeve, and a tubular structure with an annular section formed by the plurality of cover pieces. A plurality of cover pieces are arranged on the water splashing disc, a bottom cover is arranged at the lower ends of the plurality of cover pieces, the bottom cover is in a disc shape, an annular edge is arranged at the upper end of the bottom cover, the annular edge is detachably connected with the plurality of cover pieces, and the plurality of cover pieces are connected with the sleeve through a torsion spring. And through the torsional springs arranged between the cover pieces and the sleeve, after the cover pieces are not fixed by the bottom cover, the cover pieces turn upwards with the torsional springs as the center, shielding and hiding of the spray head are relieved, and the spraying area and the spray head effect of the spray head are guaranteed.

Description

Technical Field

[0001] This utility model discloses a concealed sprinkler head, belonging to the field of fire-fighting equipment technology. Background Technology

[0002] Concealed sprinkler heads, usually referring to fire sprinkler heads that are installed in an embedded manner, are characterized by their aesthetically pleasing structure and concealed installation, and are therefore widely used in shopping malls, office buildings, and some factories.

[0003] Currently, existing concealed sprinkler heads generally have an outer cover installed on the outside of the splash plate, and a decorative cover is installed at the lower end of the outer cover. The decorative cover can be removed after the sprinkler head is triggered, but the outer cover will still be fixed on the outside of the splash plate. This causes the water source sprayed by the sprinkler head to be interfered with by the outer cover, reducing the water spraying area of ​​the sprinkler head, reducing the fire extinguishing efficiency, and posing a safety hazard.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] The purpose of this invention is to provide a concealed sprinkler head to solve the above-mentioned problems, which has the effect of ensuring the spray range of the sprinkler head while being concealed.

[0006] This utility model achieves the above-mentioned objectives through the following technical solution: a connecting pipe, a sleeve at the lower end of the connecting pipe, a yoke arm at the lower end of the sleeve, a splash plate at the lower end of the yoke arm, a mounting base at the center of the yoke arm, a glass body between the mounting base and the splash plate, several covers on the outside of the sleeve, the sides of the several covers abutting each other to form a tubular structure with an annular cross-section, the lower ends of the several covers extending downward beyond the lower end of the splash plate, a bottom cover at the lower end of the several covers, the bottom cover being disc-shaped with an annular edge at the upper end, the inner side of the annular edge being detachably connected to the outer side of the lower end of the several covers, a torsion spring at the upper end of the several covers, and the several covers being connected to the sleeve through the torsion spring.

[0007] By adopting the above technical solution, the connecting pipe is used to connect the water supply pipe, and the sleeve can connect the yoke boom and the tubular structure formed by several cover plates. The tubular structure formed by several cover plates can cover and hide the sides of the yoke boom and the splash plate. The bottom cover can cover and hide the lower end of the splash plate. The combination of the bottom cover and several cover plates can achieve the effect of hiding the sprinkler head. The torsion spring and the bottom cover are detachably connected to several cover plates through the design of the annular edge set at the upper end. When a fire occurs, the bottom cover can be detached from several cover plates. Then, under the action of the torsion spring, several cover plates will flip upward around the torsion spring as the center, so that the sprinkler head can spray normally without being blocked by the cover plates, thus ensuring its spraying effect.

[0008] Preferably, the annular edge is welded to several cover plates using a fusible alloy as the welding material.

[0009] By adopting the above technical solution, the annular edge and the cover plate are welded together with a fusible alloy as the welding material. In the event of a fire or other high-temperature conditions, the fusible alloy melts, which can separate the base cover from the cover plate, thereby enabling the sprinkler head to work normally. This ensures the normal start-up of the sprinkler head in emergency situations and improves fire safety performance.

[0010] Preferably, a steel wire rope is provided at the upper end of the bottom cover, and the bottom cover is connected to the inner side of one of the several cover panels through the steel wire rope.

[0011] By adopting the above technical solution and using the steel wire rope, when the bottom cover separates from the cover plate, the bottom cover will still be connected to one of the cover plates through the connection of the steel wire rope, thus preventing the bottom cover from falling and injuring pedestrians and reducing safety hazards.

[0012] Preferably, the upper end of the connecting pipe is provided with an external thread.

[0013] By adopting the above technical solution and setting external threads, the connecting pipe can be easily connected to the water supply pipe, improving the ease of nozzle installation.

[0014] Preferably, a sealing gasket is provided between the lower end of the connecting pipe and the sleeve.

[0015] By adopting the above technical solution, the sealing gasket can effectively prevent water leakage at the connection, ensure the sealing performance of the nozzle system, improve work efficiency, and reduce potential damage and safety hazards caused by water leakage.

[0016] Preferably, a counterweight is provided at the lower end of the base cover, and the counterweight is detachably connected to the base cover by bolts.

[0017] By adopting the above technical solution, the counterweight block allows the base cover to be stably separated from the cover plate, enhancing the stability of the nozzle triggering. The detachable connection design of the counterweight block allows for the replacement of counterweight blocks of different specifications according to usage requirements, improving the flexibility of nozzle use.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] Firstly, the nozzles form an annular tubular structure by abutting each other, with the lower end extending beyond the lower end of the splash plate. Combined with the disc-shaped base cover, the entire nozzle has good concealment when not in operation. Furthermore, through the torsion springs set between several nozzles and the sleeve, after several nozzles are no longer fixed by the base cover, the nozzles can be flipped upwards around the torsion springs, releasing the obstruction and concealment of the nozzle, and ensuring the spray area and spray effect of the nozzle.

[0020] Secondly, the ring edge and the cover plate are welded with a fusible alloy. When the ambient temperature rises to a certain level, the fusible alloy melts, the bottom cover falls off, and the sprinkler head starts quickly to spray water for fire extinguishing. This ensures the normal start of the sprinkler head in an emergency and improves fire safety performance.

[0021] Third, the bottom cover is connected to the cover plate by steel wire rope, which can prevent accidental injury when the bottom cover falls off;

[0022] Fourth, a counterweight is provided at the lower end of the base cover, which is detachably connected to the base cover by bolts. This ensures that the base cover can be stably separated from the lower end of the cover plate by gravity after the weld point melts, thus improving the stability of the nozzle triggering. Attached Figure Description

[0023] Figure 1 A cross-sectional view of a concealed sprinkler head;

[0024] Figure 2 This is a schematic diagram of the structure of a concealed sprinkler head.

[0025] Reference numerals in the attached drawings: 1. Connecting pipe; 2. Sleeve; 3. Yoke arm; 4. Splash plate; 5. Glass body; 6. Cover plate; 7. Base cover; 8. Torsion spring; 9. Wire rope; 10. Counterweight. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0027] A concealed sprinkler head, such as Figures 1-2As shown, the device includes a connecting pipe 1, a sleeve 2 at the lower end of the connecting pipe 1, a yoke arm 3 at the lower end of the sleeve 2, a splash plate 4 at the lower end of the yoke arm 3, a mounting base at the center of the yoke arm 3, and a glass body 5 between the mounting base and the splash plate 4. Several cover plates 6 are provided on the outside of the sleeve 2, with their sides abutting against each other to form a tubular structure with an annular cross-section. The lower ends of the cover plates 6 extend downwards beyond the lower end of the splash plate 4. The connecting pipe 1 is used to connect to a water supply pipe, and the sleeve 2 connects the yoke arm 3 and the tubular structure formed by the cover plates 6. The tubular structure formed by the cover plates 6 can cover and conceal the sides of the yoke arm 3 and the splash plate 4. A bottom cover 7 is provided at the lower end of the cover plates 6. 7 is disc-shaped with an annular edge at the top. The inner side of the annular edge is detachably connected to the outer side of the lower end of several cover plates 6. Several cover plates 6 are equipped with torsion springs 8 at their upper ends. Several cover plates 6 are connected to the sleeve 2 through torsion springs 8. The bottom cover 7 can cover and hide the lower end of the splash plate 4. The bottom cover 7 and several cover plates 6 work together to hide the sprinkler head. The design of the torsion spring 8 and the bottom cover 7 being detachably connected to several cover plates 6 through the annular edge at the top end allows the bottom cover 7 to fall off and separate from several cover plates 6 in the event of a fire. Then, several cover plates 6 are rotated upward around the torsion spring 8 under the action of the torsion spring 8, so that the sprinkler head can spray normally without being blocked by the cover plates 6, ensuring its spraying effect.

[0028] The annular edge is welded to several cover plates 6 using a fusible alloy as the welding material. This design allows the fusible alloy to melt in the event of a fire or other high-temperature conditions, enabling the base cover 7 to separate from the cover plates 6, thus allowing the sprinkler head to operate normally. This ensures the normal activation of the sprinkler head in emergencies and improves fire safety performance. A steel wire rope 9 is installed at the upper end of the base cover 7, connecting the base cover 7 to the inner side of one of the cover plates 6 via the steel wire rope 9. The steel wire rope 9 ensures that even if the base cover 7 separates from the cover plate 6, the base cover 7 will still be connected to one of the cover plates 6, preventing the base cover 7 from falling and injuring pedestrians and reducing safety hazards.

[0029] The upper end of the connecting pipe 1 is provided with an external thread, which allows the connecting pipe 1 to be easily connected to the water supply pipe, improving the ease of nozzle installation. A sealing gasket is provided between the lower end of the connecting pipe 1 and the sleeve 2. The sealing gasket can effectively prevent water leakage at the connection, ensuring the sealing of the nozzle system, improving work efficiency, and reducing potential damage and safety hazards caused by water leakage. A counterweight 10 is provided at the lower end of the base cover 7. The counterweight 10 is detachably connected to the base cover 7 by bolts. The counterweight 10 allows the base cover 7 to be stably separated from the cover plate 6, enhancing the stability of nozzle triggering. The detachable design of the counterweight 10 allows for the replacement of counterweights of different specifications according to usage requirements, improving the flexibility of nozzle use.

[0030] During installation, the sprinkler head is connected to the water supply pipe via the external thread on the connecting pipe 1. Several cover plates 6 are then flipped downwards to form a tubular structure. The bottom cover 7 is then connected to the lower ends of the cover plates 6 and welded together using a fusible alloy as the welding material. In the event of a fire, the weld points formed by the fusible alloy melt, causing the bottom cover 7 to separate from the lower ends of the cover plates 6. Under the action of the torsion spring 8, the cover plates 6 flip upwards around the torsion spring 8, removing the cover from the sprinkler head and allowing it to be triggered normally for spraying. This ensures the spraying area and spraying quality. At the same time, the bottom cover 7 remains connected to one of the cover plates 6 under the connection of the steel wire rope 9 to prevent it from falling off, thus improving the safety of the sprinkler head triggering.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A concealed sprinkler characterized by: The utility model provides a connecting pipe (1) is provided with the sleeve (2) in lower end, the sleeve (2) is provided with the yoke arm frame (3) in lower end, the yoke arm frame (3) is provided with the splash plate (4) in lower end, the yoke arm frame (3) is provided with the mounting seat in center, and the mounting seat is provided with the vitreous body (5) between the splash plate (4), the sleeve (2) is provided with a plurality of cover pieces (6) outside, a plurality of cover pieces (6) side each other abutment forms the tubular structure of annular section, a plurality of cover pieces (6) lower end extends to the lower end of splash plate (4) beyond, a plurality of cover pieces (6) lower end is provided with bottom cover (7), bottom cover (7) is discoid and is provided with annular edge in upper end, and the inside of annular edge with a plurality of cover pieces (6) lower end outside edge detachable connection, a plurality of cover pieces (6) upper end is provided with torsion spring (8), a plurality of cover pieces (6) are connected with sleeve (2) through torsion spring (8).

2. A concealed sprinkler head as defined in claim 1, wherein: The annular edge and a plurality of cover pieces (6) are welded with fusible alloy as welding material.

3. A concealed sprinkler head as defined in claim 1, wherein: The bottom cover (7) is provided with a steel wire rope (9) in upper end, and the bottom cover (7) is connected with the inside of one cover piece (6) of a plurality of cover pieces (6) through the steel wire rope (9).

4. A concealed sprinkler head as defined in claim 1, wherein: The connecting pipe (1) is provided with external thread in upper end.

5. A concealed sprinkler head as defined in claim 1, wherein: The connecting pipe (1) is provided with sealing washer between lower end and sleeve (2).

6. A concealed sprinkler head as defined in claim 1, wherein: The bottom cover (7) is provided with counterweight (10) in lower end, and the counterweight (10) is detachably connected with the bottom cover (7) through bolt. The bottom cover (7) is provided with counterweight (10) in lower end, and the counterweight (10) is detachably connected with the bottom cover (7) through bolt.

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