Fire-fighting spray header

Abstract

The utility model discloses a fire-fighting spray head which comprises a connector with a water through hole in the middle, a plugging block for sealing the lower end of the water through hole, a connecting base located below the connector and provided with an inner threaded hole in the middle, a support with the two ends fixedly connected with the connecting base and the connector respectively, and a water dispersing disc fixedly connected to the connecting base. The screw rod is in threaded connection with the inner threaded hole of the connecting seat, and the thermosensitive glass tube is positioned between the connecting seat and the screw rod; the flexible mesh bag is used for packaging the whole thermosensitive glass tube; and the upper end and the lower end of the flexible mesh bag are respectively propped against the connecting seat and the screw rod. The glass cullet collecting device has the advantages that when the thermosensitive glass tube is heated and broken, the flexible mesh bag can effectively collect scattered glass cullet, so that the glass cullet is safely wrapped, and subsequent rapid collecting and processing work is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a fire sprinkler head. Background Technology

[0002] Fire sprinkler heads are key components of automatic sprinkler systems, primarily used to automatically activate and spray water to control or extinguish flames when a fire occurs. These devices are typically installed on the ceiling of a building and connected to the water supply network. Each sprinkler head contains a temperature-sensitive thermosensitive glass tube. When the ambient temperature reaches a preset threshold (usually 68°C), the thermosensitive glass tube breaks, releasing the seal and allowing water from the supply pipe to spray out of the sprinkler head, forming a specific spray pattern to effectively control the fire.

[0003] Chinese utility model patent publication number CN 219681549 U discloses a fire sprinkler head for fire fighting. This utility model involves placing one end of a glass body on the top of an arc-shaped groove plate inside a protective lower mesh cylinder, then covering the other end of the glass body with a protective mesh sleeve, inserting one end of the protective mesh cylinder into the lower mesh cylinder, placing a water-blocking block inside the mounting base to seal it, placing the protective mesh cylinder at the bottom of the water-blocking block, and placing the lower mesh cylinder at the top of a retaining plate. The protective mesh cylinder and lower mesh cylinder not only protect the glass body from impact damage but also prevent shattered glass from splashing and injuring people in the event of a fire. However, its structural design has shortcomings. The main issue is that the telescopic protective mesh cylinder and lower mesh cylinder structure means that when the glass body cracks due to heat, the protective mesh cylinder and water-blocking block descend, obstructing the water flow from the mounting base, reducing the water flow velocity, and preventing the water from directly contacting the splash plate. Therefore, the splash plate's water dispersion effect is poor. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a fire sprinkler head.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A fire sprinkler head includes a connector with a water passage hole in the middle, a sealing block that closes the lower end of the water passage hole, a connecting seat located below the connector and having an internal threaded hole in the middle, a bracket fixed at both ends to the connecting seat and the connector, a water distribution plate fixed to the connecting seat, a screw threaded to the internal threaded hole of the connecting seat, and a heat-sensitive glass tube located between the connecting seat and the screw; it also includes a flexible mesh bag that encapsulates the entire heat-sensitive glass tube, with the upper and lower ends of the flexible mesh bag abutting against the connecting seat and the screw, respectively.

[0007] Preferably, it also includes a short rod fixed to the connector head, a connecting ring fixed to the end of the short rod, and a soft rope fixed at both ends to the connecting ring and the flexible net bag respectively.

[0008] Preferably, it also includes a short rod fixed to the connector, a connecting ring fixed to the end of the short rod, and a soft rope fixed at both ends to the connecting ring and the sealing block respectively; the upper part of the flexible net bag is fixed to the sealing block.

[0009] Preferably, the flexible mesh bag is made of nylon mesh, glass fiber mesh or polytetrafluoroethylene mesh with a mesh count of 120-400.

[0010] The above technical solution has the following advantages:

[0011] This invention utilizes a flexible mesh bag to encapsulate the thermal glass tube. This design not only does not affect the normal assembly and use of the thermal glass tube, but also plays a crucial role in the event of the tube breaking due to heat. When the thermal glass tube breaks due to heat, the flexible mesh bag effectively collects the scattered glass shards, ensuring they are safely contained and facilitating subsequent rapid collection and disposal. This design significantly reduces inconvenience during the cleanup process and substantially lowers the risk of injury to cleanup personnel from broken glass, thereby improving product safety and user experience. Attached Figure Description

[0012] Figure 1 This is a perspective view of the first embodiment of the present utility model;

[0013] Figure 2 for Figure 1 A schematic diagram of a broken medium-temperature glass tube;

[0014] Figure 3 This is a perspective view of the second embodiment of the present invention, showing the state after the thermosensitive glass tube has broken;

[0015] In the picture:

[0016] 1-Water passage hole, 2-Connector, 3-Blocking block, 4-Connecting seat, 5-Bracket, 6-Water distribution tray, 7-Screw, 8-Thermosensitive glass tube, 9-Flexible mesh bag, 10-Short rod, 11-Connecting ring, 12-Soft rope. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0018] Example 1

[0019] As attached Figure 1-2As shown, a fire sprinkler head includes a connector 2 with a water passage hole 1 in the middle, a sealing block 3 that closes the lower end of the water passage hole 1, a connector 4 located below the connector 2 and having an internal threaded hole in the middle, a bracket 5 whose two ends are fixedly connected to the connector 4 and the connector 2 respectively, a water distribution plate 6 fixedly connected to the connector 4, a screw 7 threadedly connected to the internal threaded hole of the connector 4, and a heat-sensitive glass tube 8 located between the connector 4 and the screw 7; it also includes a flexible mesh bag 9 that encapsulates the entire heat-sensitive glass tube 8, the upper and lower ends of the flexible mesh bag 9 abutting against the connector 4 and the screw 7 respectively.

[0020] As a further improvement to this embodiment, the technical solution also includes a short rod 10 fixed to the connector 2, a connecting ring 11 fixed to the end of the short rod 10, and a soft rope 12 fixed at both ends to the connecting ring 11 and the flexible mesh bag 9, respectively. The short rod 10 and the connector 2 can be connected by threads or welding. By setting the short rod 10 and the soft rope 12, when the heat-sensitive glass tube 8 breaks due to heat, the broken glass is collected in the flexible mesh bag 9 and suspended by the soft rope 12. The short rod 10 can keep the flexible mesh bag 9 away from the bottom of the water passage 1, avoiding the flexible mesh bag 9 from interfering with the water flow and ensuring that the water distribution plate 6 has a good dispersion effect on the water flow. It also facilitates the collection and treatment of the flexible mesh bag 9 containing broken glass.

[0021] As a preferred technical solution in this embodiment, the flexible mesh bag 9 can be made of nylon mesh, glass fiber mesh or polytetrafluoroethylene mesh with a mesh count of 120-400.

[0022] Example 2

[0023] As attached Figure 3 As shown, a fire sprinkler head includes a connector 2 with a water passage hole 1 in the middle, a sealing block 3 that closes the lower end of the water passage hole 1, a connector 4 located below the connector 2 and having an internal threaded hole in the middle, a bracket 5 whose two ends are fixedly connected to the connector 4 and the connector 2 respectively, a water distribution plate 6 fixedly connected to the connector 4, a screw 7 threadedly connected to the internal threaded hole of the connector 4, and a heat-sensitive glass tube 8 located between the connector 4 and the screw 7; it also includes a flexible mesh bag 9 that encapsulates the entire heat-sensitive glass tube 8, the upper and lower ends of the flexible mesh bag 9 abutting against the connector 4 and the screw 7 respectively.

[0024] It also includes a short rod 10 fixed to the connector 2, a connecting ring 11 fixed to the end of the short rod 10, and a soft rope 12 fixed at both ends to the connecting ring 11 and the sealing block 3 respectively; the upper part of the flexible net bag 9 is fixed to the sealing block 3, which can be done by gluing or snapping, so as to facilitate the replacement of the flexible net bag 9.

[0025] In this embodiment, the sealing block 3 is connected by a soft rope 12 to prevent the sealing block 3 from falling off and being lost, so that when the fire sprinkler head is restored later, the original sealing block 3 can be used directly.

[0026] This invention uses a flexible mesh bag 9 to encapsulate the thermal glass tube 8, which not only does not affect the normal assembly and use of the thermal glass tube 8, but also effectively collects the scattered glass fragments in the event that the thermal glass tube 8 breaks due to heat, thus ensuring that the glass fragments are safely wrapped up, facilitating subsequent rapid collection and processing.

[0027] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A fire sprinkler head, comprising a connector (2) having a water passage hole (1) in the middle, a sealing block (3) sealing the lower end of the water passage hole (1), a connecting seat (4) located below the connector (2) and having an internal threaded hole in the middle, a bracket (5) fixedly connected at both ends to the connecting seat (4) and the connector (2) respectively, a water distribution plate (6) fixedly connected to the connecting seat (4), a screw (7) threadedly connected to the internal threaded hole of the connecting seat (4), and a heat-sensitive glass tube (8) located between the connecting seat (4) and the screw (7); characterized in that: It also includes a flexible mesh bag (9) that encapsulates the entire thermosensitive glass tube (8), the upper and lower ends of which abut against the connecting seat (4) and the screw (7) respectively.

2. The fire sprinkler head according to claim 1, characterized in that: It also includes a short rod (10) fixed to the connector (2), a connecting ring (11) fixed to the end of the short rod (10), and a soft rope (12) fixed at both ends to the connecting ring (11) and the flexible net bag (9), respectively.

3. The fire sprinkler head according to claim 1, characterized in that: It also includes a short rod (10) fixed to the connector (2), a connecting ring (11) fixed to the end of the short rod (10), and a soft rope (12) fixed at both ends to the connecting ring (11) and the sealing block (3) respectively; the upper part of the flexible net bag (9) is fixed to the sealing block (3).

4. The fire sprinkler head according to claim 1, characterized in that: The flexible mesh bag (9) is made of nylon mesh, glass fiber mesh or polytetrafluoroethylene mesh with a mesh count of 120-400.

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