Fire-fighting spray header

Abstract

The utility model belongs to the technical field of fire fighting, and particularly relates to a fire-fighting spray header which comprises a threaded pipe and a fixing plate, the fixing plate is fixedly connected to the lower side of the threaded pipe, the lower end of the fixing plate is connected with a dismounting mechanism, the dismounting mechanism comprises a dismounting unit and a spraying unit, the dismounting unit is arranged at the lower end of the threaded pipe, and the spraying unit is arranged on the lower side of the threaded pipe. The spraying unit is arranged at the outer end of the dismounting and mounting unit, the dismounting and mounting unit comprises a connecting ring, a round frame, a connecting rod, a water splashing disc, a glass ball body, a threaded rod and a cylinder, and the connecting ring is connected to the lower end of the fixing plate. According to the fire-fighting spray head, when a fire disaster occurs, the temperature rises, so that expansion liquid in the glass ball body expands to break the glass ball body, and a first through hole in the fixing plate and a second through hole in the round frame are not closed any more; and fire-fighting water enters the round frame from the threaded pipe through the first through hole and then is sprayed to the water splashing disc from the second through hole to be splashed and sprayed all around to extinguish fire.

Description

Technical Field

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

[0002] During the installation of the fire protection system, fire sprinkler heads need to be installed. When a fire occurs, the water in the fire water pipe is sprayed out through the water outlet on the fire sprinkler head and hits the splash plate and then scatters, effectively controlling the fire.

[0003] The existing fire sprinkler head mainly includes a threaded pipe, a glass body, a glass body fixing, a splash plate, and a water baffle, wherein the threaded pipe and the glass body fixing are cast as one piece, and a hole needs to be opened on the glass body fixing for installing the splash plate through the rivet through the hole. If there is a problem with the hole opening during processing, the entire threaded pipe and the glass body fixing will be scrapped, which increases the production cost, and the overall casting process of the threaded pipe and the glass body fixing is complicated.

[0004] For example, a fire sprinkler head disclosed in Chinese patent CN212593649U is formed by independently stamping a threaded tube and a choke arm column, and then welding the contact ends of the threaded tube and the choke arm column into one piece, which can save overall processing technology and reduce costs. At the same time, the processing is simple and it is not easy to cause a high scrap rate.

[0005] However, after the glass body in the fire sprinkler head is broken, a new glass body cannot be installed in the sprinkler head after it has been used, so that the sprinkler head cannot be used again, resulting in great waste.

[0006] For this reason, we urgently need to provide a fire sprinkler head that can replace the glass body. Utility Model Content

[0007] The utility model aims to provide a fire sprinkler head to solve the problem that after the glass body in the fire sprinkler head proposed in the above background technology is broken, a new glass body cannot be installed in the working sprinkler head, so that the sprinkler head cannot be used again, thereby causing great waste.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire sprinkler head, comprising a threaded pipe and a fixing plate, wherein the fixing plate is fixedly connected to the lower side of the threaded pipe, and the lower end of the fixing plate is connected with a disassembly mechanism, wherein the disassembly mechanism comprises a disassembly unit and a spraying unit, wherein the disassembly unit is arranged at the lower end of the threaded pipe, and the spraying unit is arranged at the outer end of the disassembly unit.

[0009] The disassembly and assembly unit includes a connecting ring, a round frame, a connecting rod, a splash plate, a glass sphere, a threaded rod and a cylinder. The connecting ring is connected to the lower end of the fixed plate, the round frame is fixedly connected to the inner side of the connecting ring, the connecting rod is fixedly connected to the middle position of the left and right sides of the lower side of the round frame, the splash plate is fixedly connected to the lower end of the connecting rod, the glass sphere is connected to the inside of the round frame, the threaded rod is fixedly connected to the lower side of the fixed plate with equal arcs, and the cylinder is connected to the outer side of the threaded rod.

[0010] A further improvement is that a mounting hole is provided inside the connecting ring in an equal arc, and the outer side of the threaded rod is slidably connected to the inner side of the mounting hole. Therefore, when the connecting ring is installed on the lower side of the fixing plate, the threaded rod will pass through the inner side of the mounting hole, thereby limiting the movement of the connecting ring during installation.

[0011] A further improvement is that the inner side of the cylinder is provided with an internal thread, the outer side of the threaded rod is threadedly connected to the inner side of the cylinder, and the upper side of the cylinder is in contact with the lower side of the connecting ring. Thus, after the connecting ring is moved to the lower side of the fixed plate and the mounting hole passes through the threaded rod, the cylinder is threadedly connected to the outer side of the threaded rod until the upper side of the cylinder contacts the lower side of the connecting ring, so that the connecting ring can be fixed to the lower side of the fixed plate, thereby fixing the round frame to the lower end of the fixed plate.

[0012] A further improvement is that a first through hole is opened in the middle of the interior of the fixing plate, a second through hole is opened in the middle of the lower end of the interior of the circular frame, the upper end of the outer side of the glass sphere abuts against the lower end of the inner side of the first through groove, the lower end of the outer side of the glass sphere abuts against the upper end of the inner side of the second through groove, and the interior of the glass sphere is filled with expansion liquid. Therefore, when the glass sphere is placed inside the circular frame and the connecting ring is fixed to the lower end of the fixing plate, the outer side of the glass sphere will contact the inner side of the first through groove and the second through groove to seal them.

[0013] A further improvement is that the spray unit includes a connecting pipe and a spray head, the connecting pipe is fixedly connected to the middle position of the left and right ends inside the circular frame, and the spray head is fixedly connected to one end of the connecting pipe away from the spray head.

[0014] A further improvement is that the spraying direction of the nozzle is located at the left and right ends of the outer side of the threaded pipe. Therefore, part of the water entering the circular frame will enter the connecting pipe and then be sprayed out of the nozzle to the outer side of the threaded pipe, spraying the outer side of the threaded pipe, so that in the event of a fire, the outer side of the sprinkler head will also be sprayed with water to prevent the sprinkler head itself from being burned.

[0015] A further improvement is that a rubber pad is fixedly connected to the lower side of the fixing plate. After the connecting ring is fixed to the lower side of the fixing plate, the rubber pad on the lower side of the fixing plate contacts the upper side of the connecting ring, so that the contact between the fixing plate and the connecting ring can be kept sealed, thereby preventing the firefighting water entering the circular frame from leaking out from the contact between the fixing plate and the connecting ring.

[0016] In summary, the present application discloses a fire sprinkler head.

[0017] According to the technical solution, after the cylinder is removed from the outer side of the threaded rod by rotating it, the connecting ring can be removed from the bottom of the fixing plate, and then the broken glass fragments in the circular frame can be cleaned, and then a new glass sphere is placed on the circular frame, and then the connecting ring at the upper end of the circular frame is fixed to the lower end of the fixing plate, so that the glass sphere in the sprinkler head can be replaced, so that the sprinkler head can be reused.

[0018] Furthermore, part of the water entering the circular frame will enter the connecting pipe and then be sprayed out of the sprinkler head to the outside of the threaded pipe, spraying the outside of the threaded pipe. Therefore, in the event of a fire, the outside of the sprinkler head will also be sprayed with water to prevent the sprinkler head itself from being burned. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the main body of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure at the lower end of the fixed plate of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the utility model.

[0023] In the figure: 1, threaded pipe; 2, fixing plate; 301, connecting ring; 302, round frame; 303, connecting rod; 304, splash plate; 305, glass sphere; 306, threaded rod; 307, cylinder; 401, connecting pipe; 402, nozzle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4, the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A fire sprinkler head comprises a threaded pipe 1 and a fixing plate 2, wherein the fixing plate 2 is fixedly connected to the lower side of the threaded pipe 1, and a disassembly mechanism is connected to the lower end of the fixing plate 2, wherein the disassembly mechanism comprises a disassembly unit and a spray unit, wherein the disassembly unit is arranged at the lower end of the threaded pipe 1, and the spray unit is arranged at the outer end of the disassembly unit.

[0028] The disassembly and assembly unit comprises a connecting ring 301, a round frame 302, a connecting rod 303, a water splash plate 304, a glass sphere 305, a threaded rod 306 and a cylinder 307. The connecting ring 301 is connected to the lower end of the fixed plate 2, the round frame 302 is fixedly connected to the inner side of the connecting ring 301, the connecting rod 303 is fixedly connected to the middle position of the left and right sides of the lower side of the round frame 302, the water splash plate 304 is fixedly connected to the lower end of the connecting rod 303, the glass sphere 305 is connected to the inside of the round frame 302, the threaded rod 306 is fixedly connected to the lower side of the fixed plate 2 with equal arcs, the inside of the connecting ring 301 is provided with mounting holes with equal arcs, and the outer side of the threaded rod 306 is slidably connected to the inner side of the mounting hole. Therefore, when the connecting ring 301 is installed to the lower side of the fixed plate 2, the threaded rod 306 will pass through the inner side of the mounting hole, thereby limiting the movement of the connecting ring 301 during installation.

[0029] The cylinder 307 is connected to the outer side of the threaded rod 306. The inner side of the cylinder 307 is provided with an internal thread, the outer side of the threaded rod 306 is threadedly connected to the inner side of the cylinder 307, and the upper side of the cylinder 307 is in contact with the lower side of the connecting ring 301. Therefore, after the connecting ring 301 is moved to the lower side of the fixed plate 2 and the mounting hole passes through the threaded rod 306, the cylinder 307 is threadedly connected to the outer side of the threaded rod 306 until the upper side of the cylinder 307 contacts the lower side of the connecting ring 301, so that the connecting ring 301 can be fixed to the lower side of the fixed plate 2, so that the round frame 302 can be fixed to the lower end of the fixed plate 2.

[0030] A first through hole is provided in the middle of the fixing plate 2, and a second through hole is provided in the middle of the lower end of the circular frame 302. The upper end of the outer side of the glass sphere 305 abuts against the lower end of the inner side of the first through groove, and the lower end of the outer side of the glass sphere 305 abuts against the upper end of the inner side of the second through groove. The interior of the glass sphere 305 is filled with a post-expansion liquid. Therefore, when the glass sphere 305 is placed inside the circular frame 302 and the connecting ring 301 is fixed to the lower end of the fixing plate 2, the outer side of the glass sphere 305 will contact the inner side of the first through groove and the second through groove to seal them.

[0031] Embodiment 2:

[0032] On the basis of the first embodiment: the spray unit includes a connecting pipe 401 and a spray head 402 . The connecting pipe 401 is fixedly connected to the middle position of the left and right ends inside the circular frame 302 . The spray head 402 is fixedly connected to one end of the connecting pipe 401 away from the spray head 402 .

[0033] The spraying direction of the nozzle 402 is located at the left and right ends of the outer side of the threaded pipe 1. Therefore, part of the water entering the circular frame 302 will enter the connecting pipe 401 and then be sprayed out of the nozzle 402 to the outer side of the threaded pipe 1, spraying the outer side of the threaded pipe 1, so that in the event of a fire, the outer side of the sprinkler head will also be sprayed with water to prevent the sprinkler head itself from being burned.

[0034] Embodiment three:

[0035] On the basis of the first embodiment: a rubber pad is fixedly connected to the lower side of the fixing plate 2. After the connecting ring 301 is fixed to the lower side of the fixing plate 2, the rubber pad on the lower side of the fixing plate 2 contacts the upper side of the connecting ring 301, so that the contact between the fixing plate 2 and the connecting ring 301 can be kept sealed, thereby preventing the firefighting water entering the circular frame 302 from leaking out from the contact between the fixing plate 2 and the connecting ring 301.

[0036] Working principle: When a fire occurs, the temperature rises, causing the expansion liquid in the glass sphere 305 to expand and break the glass sphere 305. The first through hole in the fixed plate 2 and the second through hole in the circular frame 302 are no longer closed. The fire water will enter the circular frame 302 from the threaded pipe 1 through the first through hole and then spray from the second through hole onto the splash plate 304 and splash around to extinguish the fire.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A fire sprinkler head, comprising a threaded pipe (1) and a fixing plate (2), wherein the fixing plate (2) is fixedly connected to the lower side of the threaded pipe (1), characterized in that: The lower end of the fixing plate (2) is connected to a disassembly mechanism, the disassembly mechanism comprising a disassembly unit and a spray unit, the disassembly unit is arranged at the lower end of the threaded tube (1), and the spray unit is arranged at the outer end of the disassembly unit; The disassembly and assembly unit comprises a connecting ring (301), a circular frame (302), a connecting rod (303), a water splash plate (304), a glass sphere (305), a threaded rod (306) and a cylinder (307); the connecting ring (301) is connected to the lower end of the fixed plate (2); the circular frame (302) is fixedly connected to the inner side of the connecting ring (301); the connecting rod (303) is fixedly connected to the middle position of the left and right sides of the lower side of the circular frame (302); the water splash plate (304) is fixedly connected to the lower end of the connecting rod (303); the glass sphere (305) is connected to the inside of the circular frame (302); the threaded rod (306) is fixedly connected to the lower side of the fixed plate (2) in an equal arc; and the cylinder (307) is connected to the outer side of the threaded rod (306).

2. A fire sprinkler head according to claim 1, characterized in that: The connection ring (301) has a mounting hole with an equal arc inside, and the outer side of the threaded rod (306) is slidably connected to the inner side of the mounting hole.

3. A fire sprinkler head according to claim 1, characterized in that: The inner side of the cylinder (307) is provided with an internal thread, the outer side of the threaded rod (306) is threadedly connected to the inner side of the cylinder (307), and the upper side of the cylinder (307) is in contact with the lower side of the connecting ring (301).

4. A fire sprinkler head according to claim 1, characterized in that: A first through hole is provided in the middle of the interior of the fixing plate (2), a second through hole is provided in the middle of the lower end of the interior of the circular frame (302), the outer upper end of the glass sphere (305) abuts against the inner lower end of the first through groove, the outer lower end of the glass sphere (305) abuts against the inner upper end of the second through groove, and the interior of the glass sphere (305) is filled with expansion liquid.

5. A fire sprinkler head according to claim 1, characterized in that: The spray unit comprises a connecting pipe (401) and a spray head (402), wherein the connecting pipe (401) is fixedly connected to the middle position of the left and right ends inside the circular frame (302), and the spray head (402) is fixedly connected to one end of the connecting pipe (401) away from the spray head (402).

6. A fire sprinkler head according to claim 5, characterized in that: The spraying direction of the spray head (402) is located at the left and right ends of the outer side of the threaded tube (1).

7. A fire sprinkler head according to claim 1, characterized in that: A rubber pad is fixedly connected to the lower side of the fixing plate (2).

Images