A type of fire sprinkler head

Abstract

This utility model discloses a fire sprinkler head, including a mounting base with a central opening, a threaded mounting head at the top for connecting to a fire pipeline, and a vertically mounted thermosensitive glass tube at the bottom, the top of which abuts against a rubber plug inside the mounting base. A protective sleeve surrounds the thermosensitive glass tube, the top of which is fixed to the bottom of the mounting base, and multiple water outlets are evenly distributed at the bottom. A heat-conducting metal rod is fixed at the bottom, its top abutting against the thermosensitive glass tube for sensing external temperature. The top of the heat-conducting metal rod has a limiting groove adapted to the bottom of the thermosensitive glass tube. The bottom of the protective sleeve is arc-shaped, with the water outlets evenly arranged and spreading out along the arc surface to optimize the water spray effect. A filter screen is horizontally mounted inside the protective sleeve to intercept debris after the thermosensitive glass tube breaks, preventing blockage of the water outlets. This sprinkler head protects the thermosensitive glass tube during daily use and can quickly break and spray water to extinguish fires, improving fire extinguishing efficiency and possessing high practical value.

Description

Technical Field

[0001] This utility model relates to the field of fire sprinkler head technology, specifically a fire sprinkler head. Background Technology

[0002] Fire sprinkler heads are key components of fire sprinkler systems, used to automatically spray water to extinguish fires. They primarily detect fires using heat-sensitive elements. A common heat-sensitive element is a glass tube filled with an organic solvent with a high coefficient of thermal expansion (such as kerosene or ether). When the ambient temperature rises to a set threshold, the liquid inside the glass tube expands, causing the glass tube to rupture. The seals are then dislodged by the water flow, which sprays out through the sprinkler head's deflector, thus extinguishing the fire.

[0003] However, the heat-sensitive glass tubes of existing spray heads are exposed and easily damaged by external forces. Utility Model Content

[0004] In view of the technical problems in the prior art, the present invention provides a fire sprinkler head, the purpose of which is to solve the above problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fire sprinkler head includes a mounting base with a central opening. A threaded mounting head is provided at the top of the mounting base corresponding to the opening. A thermally sensitive glass tube is vertically arranged below the mounting base corresponding to the threaded mounting head. A rubber stopper is provided inside the opening of the mounting base. The top of the thermally sensitive glass tube abuts against the bottom of the rubber stopper. A protective sleeve is fitted around the thermally sensitive glass tube. The top of the protective sleeve is fixed to the bottom of the mounting base. Multiple water outlet holes are evenly opened at the bottom of the protective sleeve. A heat-conducting metal rod is fixed at the bottom of the protective sleeve. The top of the heat-conducting metal rod abuts against the thermally sensitive glass tube, and the bottom extends to the outside of the protective sleeve.

[0007] Preferably, a matching limiting groove is provided at the top of the thermally conductive metal rod corresponding to the bottom of the thermal glass tube, and the bottom of the thermal glass tube is in contact with the side wall of the limiting groove.

[0008] Preferably, the bottom of the protective sleeve is arc-shaped.

[0009] Preferably, the plurality of water outlet holes are evenly arranged along the arc-shaped surface at the bottom of the protective sleeve, and the direction of the water outlet holes is spread out along the arc-shaped surface.

[0010] Preferably, the protective sleeve has a horizontally arranged filter screen plate whose outer periphery fits into the inner side of the protective sleeve. The filter screen plate is inserted at the top of the heat-conducting metal rod, and the outer periphery of the filter screen plate is fixed to the inner side wall of the protective sleeve.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model provides a fire sprinkler head. The protective sleeve effectively protects the heat-sensitive glass tube when not in use. In the event of a fire, the heat-conducting metal rod senses the external temperature. When the temperature reaches the rupture temperature of the heat-sensitive glass tube, the tube breaks, and the water pressure dislodes the rubber stopper, spraying water through multiple outlet holes. The outlet holes are arranged along the arc-shaped surface, ensuring even and comprehensive water distribution and improving fire extinguishing efficiency. Simultaneously, a filter screen is provided to intercept debris from the broken heat-sensitive glass tube, preventing blockage of the outlet holes. Attached Figure Description

[0013] Figure 1 This is an overall schematic diagram of a fire sprinkler head according to the present invention;

[0014] Figure 2 This is a schematic diagram of the internal structure of a fire sprinkler head according to the present invention.

[0015] In the diagram: 1. Mounting base; 2. Threaded mounting head; 3. Thermosensitive glass tube; 4. Rubber stopper; 5. Protective sleeve; 6. Water outlet; 7. Heat-conducting metal rod; 8. Limiting groove; 9. Filter screen. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-2 This application discloses a fire sprinkler head, including a mounting base 1. The mounting base 1 has a structure with an opening in the middle. A threaded mounting head 2 is provided at the top corresponding to the opening for installing the sprinkler head on a fire pipeline. A heat-sensitive glass tube 3 is vertically provided below the mounting base 1 corresponding to the threaded mounting head 2. The top of the heat-sensitive glass tube 3 abuts against the bottom of a rubber plug 4 installed in the opening of the mounting base 1. A protective sleeve 5 is provided around the heat-sensitive glass tube 3. The top of the protective sleeve 5 is fixed to the bottom of the mounting base 1. Multiple water outlet holes 6 are evenly opened at the bottom for spraying water to extinguish fire. A heat-conducting metal rod 7 is fixed at the bottom of the protective sleeve 5. The top of the heat-conducting metal rod 7 abuts against the heat-sensitive glass tube 3, and the bottom extends to the outside of the protective sleeve 5 for sensing the external temperature. Here, the heat-conducting metal rod 7 can be a metal with high thermal conductivity such as copper or aluminum.

[0018] To ensure a stable connection between the thermal glass tube 3 and the thermally conductive metal rod 7, a matching limiting groove 8 is provided at the top of the thermally conductive metal rod 7 corresponding to the bottom of the thermal glass tube 3. The bottom of the thermal glass tube 3 fits against the side wall of the limiting groove 8. This design makes the thermal glass tube 3 fit the thermally conductive metal rod 7 more closely, resulting in faster heat conduction.

[0019] To optimize the water spray effect, the bottom of the protective sleeve 5 is arc-shaped, and multiple water outlets 6 are evenly arranged along the arc-shaped surface of the bottom of the protective sleeve 5, with the water outlets 6 spreading out along the arc-shaped surface; this design allows the water to be sprayed more evenly and comprehensively, improving fire extinguishing efficiency.

[0020] To prevent debris from clogging the water outlet 6 after the thermal glass tube 3 breaks, a filter screen 9 is horizontally installed inside the protective sleeve 5, with its outer periphery fitting against the inside of the protective sleeve 5. The filter screen 9 is inserted into the top of the heat-conducting metal rod 7 in the middle, and its outer periphery is fixed to the inner wall of the protective sleeve 5. The function of the filter screen 9 is to intercept the debris generated by the breakage of the thermal glass tube 3, ensuring that the water flows out smoothly. Although the filter screen 9 may be partially blocked, the water will eventually flow to the bottom of the protective sleeve 5, so that it will not affect the uniform spraying of water from the water outlet 6.

[0021] As described above, the fire sprinkler head of this utility model can effectively achieve efficient fire extinguishing. During daily use, the protective sleeve 5 provides good protection for the heat-sensitive glass tube 3, preventing damage from external forces. When a fire occurs, the heat-conducting metal rod 7 senses the external temperature. When the temperature reaches the rupture temperature of the heat-sensitive glass tube 3, the tube 3 ruptures, and the water pressure dislodges the rubber stopper 4, allowing water to spray out through multiple outlet holes 6. Because the outlet holes 6 are arranged along an arc-shaped surface, the water flow can be evenly and comprehensively sprayed, improving fire extinguishing efficiency. Simultaneously, the filter screen 9 can intercept the residue after the heat-sensitive glass tube 3 ruptures, preventing blockage of the outlet holes 6 and ensuring the normal operation of the sprinkler head. This device greatly improves the reliability and fire extinguishing efficiency of the fire sprinkler head and has high practical value.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and 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, and therefore should not be construed as a limitation of this utility model.

[0024] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire sprinkler head, comprising a mounting base (1) with a central opening, a threaded mounting head (2) being provided at the top of the mounting base (1) corresponding to the opening, a thermosensitive glass tube (3) being vertically provided below the mounting base (1) corresponding to the threaded mounting head (2), a rubber stopper (4) being provided inside the opening of the mounting base (1), the top of the thermosensitive glass tube (3) abutting against the bottom of the rubber stopper (4), characterized in that, The thermal glass tube (3) is surrounded by a protective sleeve (5). The top of the protective sleeve (5) is fixed to the bottom of the mounting base (1). The bottom of the protective sleeve (5) is evenly provided with multiple water outlet holes (6). The bottom of the protective sleeve (5) is fixed with a heat-conducting metal rod (7). The top of the heat-conducting metal rod (7) abuts against the thermal glass tube (3), and the bottom extends to the outside of the protective sleeve (5).

2. A fire sprinkler head according to claim 1, characterized in that, The top of the heat-conducting metal rod (7) is provided with a matching limiting groove (8) at the bottom of the thermosensitive glass tube (3), and the bottom of the thermosensitive glass tube (3) is in contact with the side wall of the limiting groove (8).

3. A fire sprinkler head according to claim 1, characterized in that, The bottom of the protective sleeve (5) is arc-shaped.

4. A fire sprinkler head according to claim 3, characterized in that, The plurality of water outlet holes (6) are evenly arranged along the arc-shaped surface at the bottom of the protective sleeve (5), and the direction of the water outlet holes (6) is spread out along the arc-shaped surface.

5. A fire sprinkler head according to any one of claims 1-4, characterized in that, The protective sleeve (5) is horizontally provided with a filter screen plate (9) whose outer periphery is attached to the inside of the protective sleeve (5). The filter screen plate (9) is inserted in the middle at the top of the heat-conducting metal rod (7). The outer periphery of the filter screen plate (9) is fixed on the inner side wall of the protective sleeve (5).

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