Fire-fighting sprayer for fire fighting

Abstract

The utility model discloses a fire-fighting sprinkler which comprises a sprinkler body, the sprinkler body is of a tubular structure, external threads are arranged on the peripheral face of the sprinkler body, a connecting piece is arranged at the bottom of the sprinkler body and fixedly connected with an annular plate through a plurality of connecting rods, and a plurality of first spoilers extending in the radial direction are fixedly connected to the peripheral face of the connecting piece. A connecting piece is arranged at the lower end of the spray head, a limiting ring is fixedly connected to the inner circumferential face of the lower end of the spray head, a sealing plug is arranged at the bottom end of the interior of the spray head, a thermosensitive glass ball is arranged between the connecting piece and the sealing plug, and a protection pipe is arranged on the outer side of the thermosensitive glass ball in a sleeved mode. The heat-sensitive glass ball is arranged above the connecting piece, after the heat-sensitive glass ball is heated and broken, the sealing plug falls under the action of pressure, fire fighting water is sprayed out, and the heat-sensitive glass ball is prevented from being damaged by external collision by arranging the telescopic protection tube outside the heat-sensitive glass ball.

Description

Technical Field

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

[0002] Fire sprinklers are water spraying devices used to extinguish fires in fire sprinkler systems. They can effectively contain or even eliminate fires in a certain area. Fire sprinklers are widely used in modern buildings.

[0003] For example, the utility model disclosed in authorization publication number CN211752065U includes a fire sprinkler, comprising a sprinkler body, a temperature-sensitive triggering device, a water outlet channel and a support frame provided on the sprinkler body, a screw screwed onto the support frame, a first end of the temperature-sensitive triggering device abutting the screw, a plug provided at the outlet end of the water outlet channel, a sealing surface and a supporting surface provided on the plug, a sealing gasket provided between the sealing surface and the outlet end face of the water outlet channel, and a spring gasket for elastically connecting the temperature-sensitive triggering device to the plug, maintaining a stable pressing force between the sealing surface, the sealing gasket, and the outlet end face of the water outlet channel. One end of the spring gasket abuts the supporting surface, and the other end of the spring gasket is connected to the second end of the temperature-sensitive triggering device. This solution has the advantages of good sealing, low manufacturing difficulty, and stable sealing pressure. However, during application, the heat-sensitive glass bulb of this technical solution is affected by usage conditions and has low structural strength, making it easily damaged by human intervention. This also poses a technical problem of not being able to externally protect the heat-sensitive glass bulb while preventing it from breaking and extinguishing the fire normally in the event of a fire.

[0004] For this reason, a fire sprinkler for fire fighting is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a fire sprinkler for fire fighting, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a fire sprinkler for fire fighting, comprising a sprinkler, which has a tubular structure and an external thread on the outer circumference. The lower end of the sprinkler is fixedly connected to an annular plate, and the bottom of the sprinkler is provided with a connecting piece, which is fixedly connected to the annular plate through a number of connecting rods. The outer circumference of the connecting piece is fixedly connected to a number of radially extending first spoilers, and the inner circumference of the lower end of the sprinkler is fixedly connected to a limiting ring. A sealing plug is provided at the inner bottom end of the sprinkler, and a heat-sensitive glass ball is provided between the connecting piece and the sealing plug. A protective tube is provided on the outer side of the heat-sensitive glass ball.

[0007] According to the above technical solution, the protective tube includes a first sleeve arranged on the connecting piece, and a second sleeve is sleeved and movably arranged on the top end of the first sleeve.

[0008] According to the above technical solution, a plurality of strip plates extending in the same direction are fixedly connected to the outer circumference of the first sleeve, and a strip through groove corresponding to the strip plates is provided through the side wall of the second sleeve.

[0009] According to the above technical solution, a rotating plate is rotatably provided at the bottom of the connecting member, and a plurality of radially extending second spoilers are fixedly connected to the surface of the rotating plate.

[0010] According to the above technical solution, the second sleeve is fixedly connected to the sealing plug, and the first sleeve is rotatably connected to the connecting piece, and the first sleeve is coaxially connected to the rotating plate, and the upper surface of the sealing plug is fixedly connected to the rotating shaft, and the outer peripheral surface of the rotating shaft is fixedly connected to the spiral fan blade.

[0011] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention provides a nozzle, an annular plate is provided at the lower end of the nozzle, the annular plate is connected to a connecting piece by a connecting rod, and a thermosensitive glass ball is provided above the connecting piece. After the thermosensitive glass ball is shattered by heat, the sealing plug falls under the action of pressure, causing the fire water to spray out. By providing a retractable protective tube on the outside of the thermosensitive glass ball, the thermosensitive glass ball is prevented from being damaged by external collisions, and the normal shattering of the thermosensitive glass ball by heat is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model in the first state;

[0015] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model in the second state;

[0016] In the figure: 1- nozzle, 2- annular plate, 3- connecting piece, 4- connecting rod, 5- first spoiler, 6- limiting ring, 7- sealing plug, 8- heat-sensitive glass ball, 9- first sleeve, 10- second sleeve, 11- strip plate, 12- strip groove, 13- rotating plate, 14- second spoiler, 15- rotating shaft, 16- spiral blade. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-3 The utility model provides a technical solution: a fire sprinkler for fire fighting, including a sprinkler 1, such as Figure 1 As shown, the nozzle 1 is a tubular structure, and the outer circumference is provided with an external thread, the nozzle 1 is fixed to the water supply pipe by the external thread, the lower end of the nozzle 1 is fixedly connected to the annular plate 2, the annular plate 2 is coaxially arranged with the nozzle 1, the bottom of the nozzle 1 is provided with a connecting member 3, the connecting member 3 is fixedly connected to the annular plate 2 through a plurality of connecting rods 4, the outer circumference of the connecting member 3 is fixedly connected to a plurality of radially extending first spoilers 5, as shown in FIG. Figure 2 As shown, the inner circumference of the lower end of the nozzle 1 is fixedly connected to the limit ring 6, and the inner bottom end of the nozzle 1 is provided with a sealing plug 7, which is tightly connected to the limit ring 6, so that the water in the pipeline will not be sprayed out by the nozzle 1. A heat-sensitive glass ball 8 is provided between the connecting piece 3 and the sealing plug 7, and a protective tube is provided on the outer side of the heat-sensitive glass ball 8. Under the action of the heat-sensitive glass ball 8, the sealing plug 7 is located at the bottom of the nozzle 1 to prevent water from being sprayed out of the nozzle 1. When the heat-sensitive glass ball 8 is heated, it will shatter, and the sealing plug 7 will fall off under the action of pressure, so that the nozzle 1 can spray water. The protective tube is located outside the heat-sensitive glass ball 8, ensuring that the heat-sensitive glass ball 8 can expand and shatter normally when heated, while preventing the heat-sensitive glass ball from being accidentally damaged.

[0019] Specifically, if Figure 2 As shown, the protection tube includes a first sleeve 9 provided on the connector 3, the top of the first sleeve 9 is sleeved and movably provided with a second sleeve 10, the first sleeve 9 and the second sleeve 10 are located outside the heat-sensitive glass ball 8 to protect the heat-sensitive glass ball 8, as shown in FIG. Figure 2 As shown, this is the first state of the device. When the heat-sensitive glass ball 8 breaks, the second sleeve 10 slides relative to the first sleeve 9, so that the sealing plug 7 is separated from the nozzle 1. This is the third state of the device.

[0020] Specifically, the outer circumference of the first sleeve 9 is fixedly connected to a plurality of strip plates 11 extending in the same direction. The strip plates 11 can increase the thermal conductivity of the first sleeve 9, so that the heat-sensitive glass ball 8 can break normally at high temperatures. The side wall of the second sleeve 10 is penetrated by a strip groove 12 corresponding to the strip plates 11, so that the first sleeve 9 can slide relative to the second sleeve 10, so that the sealing plug 7 is separated from the nozzle 1;

[0021] Specifically, a rotating plate 13 is rotatably provided at the bottom of the connecting member 3, and a plurality of radially extending second spoilers 14 are fixedly connected to the surface of the rotating plate 13. When the rotating plate 13 rotates, the second spoilers 14 can be driven to rotate synchronously, thereby expanding the range of the fire water spray and achieving a better fire extinguishing effect.

[0022] Specifically, the second sleeve 10 is fixedly connected to the sealing plug 7, and the first sleeve 9 is rotatably connected to the connecting member 3, and the first sleeve 9 is coaxially connected to the rotating plate 13, and the upper surface of the sealing plug 7 is fixedly connected to the rotating shaft 15, and the outer circumferential surface of the rotating shaft 15 is fixedly connected to the spiral fan blade 16. When the device is in the first state, the spiral fan blade 16 is located inside the sprinkler head 1, and when the device is in the second state, the spiral fan blade 16 slides to the bottom of the sprinkler head 1, which does not affect the water discharge efficiency. At the same time, the sprayed fire water can rotate the rotating shaft 15 under the action of the spiral fan blade 16, and the rotating shaft 15 drives the rotating plate 13 to rotate, and the rotating plate 13 drives the second spoiler 14 to rotate;

[0023] When the utility model is used, the fire-fighting water in the nozzle 1 will not be sprayed out under the action of the sealing plug 7. When a fire occurs, the heat-sensitive glass ball 8 shatters, the second sleeve 10 slides relative to the first sleeve 9, the sealing plug 7 is separated from the nozzle 1, and the fire-fighting water is sprayed out. During the spraying process, under the action of the spiral fan blades 16, the rotating shaft 15 drives the sealing plug 7 to rotate, and the rotating plate 13 is driven to rotate through the protective tube, and the rotating plate 13 drives the spiral fan blades 16 to rotate, thereby expanding the spraying range.

[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fire sprinkler for firefighting, comprising a sprinkler (1), characterized in that: The nozzle (1) is a tubular structure, and an outer peripheral surface is provided with an external thread. The lower end of the nozzle (1) is fixedly connected to an annular plate (2), and a connecting piece (3) is provided at the bottom of the nozzle (1). The connecting piece (3) is fixedly connected to the annular plate (2) through a plurality of connecting rods (4). The outer peripheral surface of the connecting piece (3) is fixedly connected to a plurality of radially extending first spoilers (5). The inner peripheral surface of the lower end of the nozzle (1) is fixedly connected to a limiting ring (6). A sealing plug (7) is provided at the inner bottom end of the nozzle (1), and a heat-sensitive glass ball (8) is provided between the connecting piece (3) and the sealing plug (7). A protective tube is provided on the outer side of the heat-sensitive glass ball (8).

2. A fire sprinkler according to claim 1, characterized in that: The protective tube comprises a first sleeve (9) arranged on the connecting piece (3), and a second sleeve (10) is sleeved and movably arranged on the top end of the first sleeve (9).

3. A fire sprinkler according to claim 2, characterized in that: The outer peripheral surface of the first sleeve (9) is fixedly connected with a plurality of strip plates (11) extending in the same direction, and the side wall of the second sleeve (10) is penetrated by a strip through groove (12) corresponding to the strip plates (11).

4. A fire sprinkler according to claim 3, characterized in that: A rotating plate (13) is rotatably provided at the bottom of the connecting member (3), and a plurality of radially extending second spoilers (14) are fixedly connected to the surface of the rotating plate (13).

5. A fire sprinkler according to claim 4, characterized in that: The second sleeve (10) is fixedly connected to the sealing plug (7), and the first sleeve (9) is rotatably connected to the connecting member (3), and the first sleeve (9) is coaxially connected to the rotating plate (13), and the upper surface of the sealing plug (7) is fixedly connected to the rotating shaft (15), and the outer peripheral surface of the rotating shaft (15) is fixedly connected to the spiral fan blade (16).

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