Fire-fighting sprayer for fire fighting

Abstract

The utility model discloses a fire-fighting sprinkler which comprises a mounting plate, a threaded connector connected with a fire-fighting pipeline is fixedly inserted into the upper side of the mounting plate, a water outlet is formed in the position, located on the lower side of the mounting plate 1, of the threaded connector, and an annular fixing plate is fixedly arranged at the position, corresponding to the threaded connector, of the lower side of the mounting plate. Four arc-shaped plates are arranged on the lower side of the annular fixing plate in an annular array mode, a splash disc is fixedly arranged on the lower sides of the four arc-shaped plates, a sealing block is arranged at the position, corresponding to the water outlet, of the threaded connector, a thermosensitive glass body is arranged on the lower side of the sealing block, the lower side of the thermosensitive glass body is fixedly connected with the splash disc, and a protection structure is arranged between every two adjacent arc-shaped plates. The protection structure is slidably connected with the arc-shaped plate and fixedly connected with the sealing block. The protective structure is arranged at the thermosensitive glass body, so that when no fire occurs, the thermosensitive glass body is effectively protected in cooperation with the protective structure; and when a fire occurs, the sealing block drives the protection structure to move downwards, the gap is opened, and water flow is conveniently sprayed out for fire fighting work.

Description

Technical Field

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

[0002] A fire sprinkler is a type of sprinkler that automatically activates within a predetermined temperature range under the action of heat, or is activated by a control device based on a fire signal, and sprays water to extinguish fire according to the designed spraying shape and flow rate. Glass ball sprinkler is a common type of fire sprinkler.

[0003] Glass ball sprinkler plays a vital role in fire protection system. Its design and function reflect the advancement and practicality of fire protection technology. The working principle of this sprinkler is mainly based on the characteristics of the thermal element. When the ambient temperature reaches the preset value, the liquid in the glass ball expands and eventually breaks the glass ball, thus triggering the water spray to extinguish the fire.

[0004] The glass body of the existing thermal induction fire sprinkler lacks a protective structure and is relatively fragile. It is easily damaged by small stones or other objects, thereby triggering the sprinkler to spray water, which brings certain inconveniences to users when firefighting is not needed. Utility Model Content

[0005] In view of the technical problems in the above-mentioned prior art, the utility model provides a fire sprinkler for fire fighting, aiming to solve the above-mentioned problems.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A fire sprinkler for fire fighting, comprising a mounting plate, a threaded connector connected to a fire fighting pipe is fixedly inserted on the upper side of the mounting plate, a water outlet is arranged on the threaded connector at the lower side of the mounting plate, an annular fixing plate is fixedly arranged at the lower side of the mounting plate corresponding to the threaded connector, four arc plates are arranged in an annular array at the lower side of the annular fixing plate, a splash plate is fixedly arranged at the lower side of the four arc plates, a sealing block is arranged at the threaded connector corresponding to the water outlet, a thermosensitive glass body is arranged at the lower side of the sealing block, the lower side of the thermosensitive glass body is fixedly connected to the splash plate, a protective structure is arranged between the four adjacent arc plates, the protective structure is slidably connected to the arc plate, and is fixedly connected to the sealing block.

[0008] Preferably, the protective structure includes four arc-shaped protective plates, and the four arc-shaped protective plates are respectively arranged in the gaps between the four adjacent arc-shaped plates, and the four arc-shaped protective plate side walls are respectively slidably connected to the corresponding arc-shaped plate side walls, and the lower side of the sealing block is provided with connecting blocks fixedly connected to the upper sides of the four arc-shaped protective plates respectively.

[0009] Preferably, the splash plate is provided with through holes corresponding to the four arc-shaped protective plates for sliding connection therewith.

[0010] Preferably, guiding sliding rails are longitudinally arranged at the positions corresponding to the side walls of the arc-shaped plates on the four arc-shaped protective plates, and guiding sliding grooves are longitudinally formed at the positions corresponding to the guiding sliding rails on the side walls of the arc-shaped plates.

[0011] Preferably, the four arc-shaped protective plates are adapted to the outer shapes of the four arc-shaped plates.

[0012] Preferably, a heat conduction probe is arranged at the position corresponding to the thermosensitive glass body on the lower side of the water splashing disc.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] A fire sprinkler for fire fighting provided by the utility model is provided with a protective structure at the thermosensitive glass body. When a fire does not occur, the sealing block is abutted by the thermosensitive glass body. At this time, the arc-shaped protective plate is between adjacent arc-shaped plates, so as to form a protective cylinder around the thermosensitive glass body, thereby effectively preventing the damage to the thermosensitive glass body by the outside world; when a fire occurs, the heat conduction probe on the lower side of the water splashing disc conducts heat to the thermosensitive glass body, so as to avoid blocking the transfer of the heat source due to the protective structure and affecting the normal operation of the fire sprinkler. When the thermosensitive glass body reaches the heat limit and breaks, the sealing block loses support and moves downward under the pressure of the water pressure, thereby driving the arc-shaped protective plate to move downward along the guiding sliding rail in the square shape, so as to open the gap between the arc-shaped plates, facilitate the water flow to spray out for fire fighting work, and has high practicability. Description of the Drawings

[0015] Figure 1 is a front cross-sectional view (when not triggered) of a fire sprinkler for fire fighting according to the utility model;

[0016] Figure 2 is a front cross-sectional view (when triggered) of a fire sprinkler for fire fighting according to the utility model;

[0017] Figure 3 is a top cross-sectional view of the connection between the arc-shaped plate and the arc-shaped protective plate of a fire sprinkler for fire fighting according to the utility model.

[0018] In the figure: 1. mounting plate; 2. threaded connection head; 21. water outlet; 3. annular fixing plate; 4. arc-shaped plate; 5. water splashing disc; 51. heat conduction probe; 6. sealing block; 7. thermosensitive glass body; 8. protective structure; 81. arc-shaped protective plate; 82. connecting block; 83. through hole; 84. guiding sliding rail; 85. guiding sliding groove. Detailed Embodiment

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1 - 3 , in the embodiment proposed in this application: A fire sprinkler for fire fighting includes a mounting plate 1. A threaded connector 2 connected to a fire pipeline is fixedly inserted on the upper side of the mounting plate 1. The threaded connector 2 has a water outlet 21 on the lower side of the mounting plate 1. An annular fixing plate 3 is fixedly provided on the lower side of the mounting plate 1 corresponding to the threaded connector 2. Four arc-shaped plates 4 are annularly arranged on the lower side of the annular fixing plate 3. A splash plate 5 is fixedly provided on the lower sides of the four arc-shaped plates 4. A sealing block 6 is provided at the water outlet 21 of the threaded connector 2. A heat-sensitive glass body 7 is provided on the lower side of the sealing block 6. The lower side of the heat-sensitive glass body 7 is fixedly connected to the splash plate 5. A heat conduction probe 51 is provided on the lower side of the splash plate 5 corresponding to the heat-sensitive glass body 7. A protection structure 8 is provided between four adjacent arc-shaped plates 4. The protection structure 8 is slidably connected to the arc-shaped plates 4 and fixedly connected to the sealing block 6;

[0021] By providing a protection structure 8 at the heat-sensitive glass body 7, when there is no fire, the heat-sensitive glass body 7 abuts against the sealing block 6, and the protection structure 8 effectively protects the heat-sensitive glass body 7, thereby effectively preventing damage to the heat-sensitive glass body 7 by the outside world; when there is a fire, the heat conduction probe 51 on the lower side of the splash plate 5 conducts heat to the heat-sensitive glass body 7, thereby avoiding blocking the transfer of the heat source due to the protection structure 8 and affecting the normal operation of the fire sprinkler. When the heat-sensitive glass body 7 reaches the heat limit and breaks, the sealing block 6 loses support and moves downward under the pressure of the water pressure, thereby driving the protection structure 8 to move downward, thereby opening the gap between the arc-shaped plates 4 to facilitate the water flow to spray for fire fighting work, and the practicability is high.

[0022] In another embodiment, please refer to Figures 1 - 3 , the protection structure 8 includes four arc-shaped protection plates 81. The four arc-shaped protection plates 81 are respectively arranged in the gaps between four adjacent arc-shaped plates 4. The four arc-shaped protection plates 81 are adapted to the outer shapes of the four arc-shaped plates 4, and the side walls of the four arc-shaped protection plates 81 are respectively slidably connected to the side walls of the corresponding arc-shaped plates 4. Connecting blocks 82 fixedly connected thereto are respectively provided on the lower side of the sealing block 6 corresponding to the upper sides of the four arc-shaped protection plates 81. Through holes 83 slidably connected thereto are opened on the splash plate 5 corresponding to the four arc-shaped protection plates 81;

[0023] When there is no fire, the sealing block 6 is abutted by the heat-sensitive glass body 7. At this time, the arc-shaped protection plate 81 is located between the adjacent arc-shaped plates 4, so as to form a protection cylinder around the heat-sensitive glass body 7, effectively preventing the external damage to the heat-sensitive glass body 7; when a fire occurs, the heat is conducted to the heat-sensitive glass body 7 through the heat-conducting probe 51 on the lower side of the water splash plate 5. When the heat-sensitive glass body 7 reaches the heat limit and breaks, the sealing block 6 loses support and moves downward under the pressure of water, thereby driving the arc-shaped protection plate 81 to move downward, so as to open the gap between the arc-shaped plates 4, facilitating the water flow to spray out for fire-fighting work.

[0024] At the same time, guide slide rails 84 are respectively longitudinally arranged at the side walls of the arc-shaped plates 4 corresponding to the four arc-shaped protection plates 81, and guide chutes 85 are respectively longitudinally opened at the side walls of the arc-shaped plates 4 corresponding to the guide slide rails 84, facilitating the guiding when the arc-shaped protection plates 81 move downward, so that they can slide downward smoothly, facilitating the smooth spraying of the water flow.

[0025] It should be noted that in this article, relational terms such as first and second 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0026] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fire sprinkler for fire fighting, comprising a mounting plate (1), a threaded connector (2) connected to a fire fighting pipe being fixedly inserted on the upper side of the mounting plate (1), and a water outlet (21) being provided on the lower side of the mounting plate (1), characterized in that: An annular fixing plate (3) is fixedly provided at the lower side of the mounting plate (1) corresponding to the threaded connector (2); four arc-shaped plates (4) are provided in an annular array at the lower side of the annular fixing plate (3); a splash plate (5) is fixedly provided at the lower side of the four arc-shaped plates (4); a sealing block (6) is provided at the water outlet (21) corresponding to the threaded connector (2); a thermosensitive glass body (7) is provided at the lower side of the sealing block (6); the lower side of the thermosensitive glass body (7) is fixedly connected to the splash plate (5); a protective structure (8) is provided between adjacent four arc-shaped plates (4); the protective structure (8) is slidably connected to the arc-shaped plates (4) and fixedly connected to the sealing block (6).

2. A fire sprinkler for firefighting according to claim 1, characterized in that: The protective structure (8) comprises four arc-shaped protective plates (81), the four arc-shaped protective plates (81) are respectively arranged in the gaps between four adjacent arc-shaped plates (4), and the side walls of the four arc-shaped protective plates (81) are respectively slidably connected to the side walls of the corresponding arc-shaped plates (4), and the lower side of the sealing block (6) is respectively provided with connecting blocks (82) fixedly connected to the upper sides of the four arc-shaped protective plates (81).

3. A fire sprinkler for firefighting according to claim 2, characterized in that: The water splash plate (5) is provided with through holes (83) corresponding to the four arc-shaped protection plates (81) and slidably connected thereto.

4. A fire sprinkler for firefighting according to claim 2, characterized in that: The four arc-shaped protection plates (81) are respectively provided with guide rails (84) longitudinally at the side walls of the arc-shaped plates (4) corresponding thereto, and the side walls of the arc-shaped plates (4) are respectively provided with guide grooves (85) longitudinally at the side walls of the arc-shaped plates (4) corresponding thereto.

5. A fire sprinkler for firefighting according to claim 2, characterized in that: The four arc-shaped protection plates (81) are adapted to the shapes of the four arc-shaped plates (4).

6. A fire sprinkler for firefighting according to claim 1, characterized in that: A thermal conductive probe (51) is provided on the lower side of the water splash plate (5) corresponding to the heat-sensitive glass body (7).

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