Fire-fighting spray header with quick connection structure

By designing a quick-connect structure and protective mechanism on the fire sprinkler head, the problem of easy damage to the heat-sensitive glass bulb during installation was solved, achieving both quick connection and effective protection.

CN224085901UActive Publication Date: 2026-04-07BEIJING ZHONGSHAN FIRE FIGHTING BAOAN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Fire sprinkler heads are prone to damage to the heat-sensitive glass bulbs during installation, leading to unusable conditions.

Method used

A fire sprinkler head with a quick-connect structure was designed. It achieves a seal by connecting to the water supply pipe via a threaded joint. Combined with the design of a protective cover and an anti-detachment ring, it protects the heat-sensitive glass bulb from impact damage.

Benefits of technology

It enables quick connection between the fire sprinkler head and the water supply pipe, effectively protects the heat-sensitive glass bulb, avoids damage during installation, and ensures the normal use of the sprinkler head.

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Abstract

The utility model provides a fire-fighting spray header with a quick connection structure, particularly relates to the technical field of fire-fighting spray headers, and comprises a fire-fighting spray header body, a screwed joint on the fire-fighting spray header body is in threaded connection with a water supply pipe, and after the screwed joint is screwed, the screwed joint extrudes a sealing gasket, so that the fire-fighting spray header with the quick connection structure is formed. After production is completed, a protective cover is connected to the outer side of a thermosensitive glass ball in a clamped mode through a first C-shaped clamping groove, then a connecting column on a protective plate is inserted into a through hole, during insertion, a first anti-disengaging ring and a second anti-disengaging ring are changed, and after insertion is completed, the protective cover is connected with the water supply pipe in a clamped mode. When the fire-fighting spray head body is installed, the first anti-falling ring and the second anti-falling ring rebound, the outer side of the first anti-falling ring is attached to the end opening of the through hole, the limiting effect after connection is achieved, and the protective cover and the protective plate are both made of rubber, so that the thermosensitive glass ball is better protected, and the thermosensitive glass ball is prevented from being collided and damaged when the fire-fighting spray head body is installed.
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Description

Technical Field

[0001] This utility model relates to the field of fire sprinkler head technology, and in particular to a fire sprinkler head with a quick-connect structure. Background Technology

[0002] Fire sprinkler heads are typically installed on ceilings or walls to detect fires and automatically spray water to extinguish them. When a fire occurs, the fire sprinkler head is stimulated by high temperatures or flames, triggering heat or smoke sensors to open the nozzles and spray water mist or jets onto the fire area to control the fire and reduce fire damage. However, during installation, it is necessary to prevent damage to the heat-sensitive glass bulb of the fire sprinkler head to avoid problems such as the head becoming unusable after installation. Utility Model Content

[0003] The purpose of this invention is to provide a fire sprinkler head with a quick-connect structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: It includes a fire sprinkler head body, which comprises a thermosensitive glass bulb and a threaded connector. The threaded connector is located at one end of the fire sprinkler head body, and a connecting mechanism is provided at one end of the threaded connector. The connecting mechanism includes a water supply pipe, a threaded groove, a water inlet, and a sealing gasket. A water supply pipe is threadedly connected to one end of the threaded connector. A threaded groove is provided at one end of the water supply pipe, and a water inlet is provided on the inner side of the water supply pipe. A sealing gasket is placed at one end of the inner cavity of the threaded groove, and a protective mechanism is provided on the outer side of the thermosensitive glass bulb.

[0005] Preferably, the fire sprinkler head body is threadedly connected to the water supply pipe via a threaded joint, and one end of the threaded joint is tightly fitted to the outside of the sealing gasket.

[0006] Preferably, the protective mechanism includes a protective cover, a first C-shaped slot, a through hole, a connecting post, a protective plate, and a handle. The outer side of the thermal glass ball is provided with a protective cover, the outer side of the protective cover is provided with a first C-shaped slot, the outer side of the protective cover is provided with a through hole, the inner side of the through hole is inserted with a connecting post, one end of the connecting post is integrally formed with a protective plate, and one side of the protective plate is fixedly connected with a handle.

[0007] Preferably, the inner wall of the first C-shaped slot is in contact with the outer wall of the thermosensitive glass ball, and the inner wall of the through hole is in contact with the outer wall of the connecting column.

[0008] Preferably, an anti-detachment mechanism is provided on the outer side of one end of the connecting post. The anti-detachment mechanism includes a first anti-detachment ring, a second anti-detachment ring, a limiting plate, and a second C-shaped slot. The first anti-detachment ring is integrally formed on the outer side of the connecting post, and the second anti-detachment ring is integrally formed on the outer side of the connecting post. A limiting plate is inserted into the outer side of the connecting post, and a second C-shaped slot is provided on the outer side of the limiting plate.

[0009] Preferably, the inner wall of the second C-shaped slot fits against the outer wall of the connecting column, the first anti-detachment ring and the second anti-detachment ring are both made of rubber, and the limiting plate is placed between the first anti-detachment ring and the second anti-detachment ring.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this fire sprinkler head with a quick-connect structure, the sealing gasket is placed at the end of the inner cavity of the threaded groove, and then the threaded connector on the fire sprinkler head body is threaded onto the water supply pipe. After tightening, the threaded connector presses against the sealing gasket, thereby achieving a sealing effect. This completes the quick connection between the fire sprinkler head body and the water supply pipe. After production, the protective cover is snapped onto the outside of the heat-sensitive glass bulb through the first C-shaped slot, and then the connecting post on the protective plate is inserted into the through hole. During insertion, the first and second anti-detachment rings change shape. After insertion, the first and second anti-detachment rings spring back, with the outer side of the first anti-detachment ring fitting against the port of the through hole, serving as a limiting effect after connection. Both the cover and the protective plate are made of rubber, thus better protecting the thermal glass ball and preventing damage to the thermal glass ball during the installation of the fire sprinkler head. After installation, the cover and protective plate can be removed. After the cover and protective plate are connected, the limiting plate is inserted into the connecting post to prevent the cover and protective plate from detaching, providing a secondary anti-detachment effect. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the connection mechanism structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the protective cover and protective plate used together in this utility model;

[0014] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0015] In the diagram: 1. Fire sprinkler head body; 2. Thermosensitive glass bulb; 3. Threaded connector; 4. Water supply pipe; 5. Threaded groove; 6. Water supply port; 7. Sealing gasket; 8. Protective cover; 9. First C-shaped slot; 10. Through hole; 11. Connecting post; 12. Protective plate; 13. Handle; 14. First anti-detachment ring; 15. Second anti-detachment ring; 16. Limiting plate; 17. Second C-shaped slot. 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] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0018] Example

[0019] Please see Figure 1-4 This utility model discloses a fire sprinkler head with a quick-connect structure, comprising a fire sprinkler head body 1, a heat-sensitive glass bulb 2, and a threaded connector 3. The threaded connector 3 is located at one end of the fire sprinkler head body 1, and a connecting mechanism is provided at one end of the threaded connector 3. The connecting mechanism includes a water supply pipe 4, a threaded groove 5, a water supply port 6, and a sealing gasket 7. The water supply pipe 4 is threaded to one end of the threaded connector 3, and the water supply pipe 4 has a threaded groove 5 at one end. The water supply port 6 is provided on the inner side of the water supply pipe 4. The sealing gasket 7 is placed at one end of the inner cavity of the threaded groove 5, and a protective mechanism is provided on the outer side of the heat-sensitive glass bulb 2. In use, the sealing gasket 7 is placed at the end of the inner cavity of the threaded groove 5, and then the threaded connector 3 on the fire sprinkler head body 1 is threaded to the water supply pipe 4. After tightening, the threaded connector 3 squeezes the sealing gasket 7, thereby achieving a sealing effect. This completes the quick connection between the fire sprinkler head body 1 and the water supply pipe 4.

[0020] Furthermore, the fire sprinkler head body 1 is threadedly connected to the water supply pipe 4 via a threaded connector 3, with one end of the threaded connector 3 tightly fitted to the outside of the sealing gasket 7.

[0021] To protect the thermosensitive glass sphere 2 during installation, the protective mechanism includes a protective cover 8, a first C-shaped slot 9, a through hole 10, a connecting post 11, a protective plate 12, and a handle 13. The protective cover 8 is located on the outer side of the thermosensitive glass sphere 2. The first C-shaped slot 9 is located on the outer side of the protective cover 8. A through hole 10 is formed through the outer side of the protective cover 8. A connecting post 11 is inserted into the inner side of the through hole 10. A protective plate 12 is integrally formed at one end of the connecting post 11. A handle 13 is fixedly connected to one side of the protective plate 12. After production, the protective cover 8 is snapped onto the thermosensitive glass sphere 2 using the first C-shaped slot 9. On the outside of the ball 2, the connecting post 11 on the protective plate 12 is inserted into the through hole 10. During insertion, the first anti-detachment ring 14 and the second anti-detachment ring 15 deform. After insertion, the first anti-detachment ring 14 and the second anti-detachment ring 15 rebound. The outer side of the first anti-detachment ring 14 fits against the port of the through hole 10, which has the effect of limiting the connection. Both the protective cover 8 and the protective plate 12 are made of rubber, which better protects the thermal glass ball 2 and prevents the thermal glass ball 2 from being damaged by bumps when installing the fire sprinkler head body 1. After installation, the protective cover 8 and the protective plate 12 can be removed.

[0022] Furthermore, the inner wall of the first C-shaped slot 9 is in contact with the outer wall of the thermal glass ball 2, and the inner wall of the through hole 10 is in contact with the outer wall of the connecting post 11.

[0023] Furthermore, an anti-detachment mechanism is provided on the outer side of one end of the connecting post 11. The anti-detachment mechanism includes a first anti-detachment ring 14, a second anti-detachment ring 15, a limiting plate 16, and a second C-shaped slot 17. The first anti-detachment ring 14 and the second anti-detachment ring 15 are integrally formed on the outer side of the connecting post 11. The limiting plate 16 is inserted into the outer side of the connecting post 11. The second C-shaped slot 17 is opened on the outer side of the limiting plate 16. After the protective cover 8 is connected to the protective plate 12, the limiting plate 16 is inserted into the connecting post 11 to prevent the protective cover 8 from detaching from the protective plate 12, thus achieving a secondary anti-detachment effect.

[0024] Furthermore, the inner wall of the second C-shaped slot 17 is fitted to the outer wall of the connecting post 11, the first anti-detachment ring 14 and the second anti-detachment ring 15 are both made of rubber, and the limiting plate 16 is placed between the first anti-detachment ring 14 and the second anti-detachment ring 15.

[0025] Working principle: During use, the sealing gasket 7 is placed at the end of the inner cavity of the threaded groove 5. Then, the threaded connector 3 on the fire sprinkler head body 1 is threaded to the water supply pipe 4. After tightening, the threaded connector 3 squeezes the sealing gasket 7, thereby achieving a sealing effect. This completes the quick connection between the fire sprinkler head body 1 and the water supply pipe 4. After production, the protective cover 8 is snapped onto the outside of the thermal glass ball 2 through the first C-shaped slot 9. Then, the connecting post 11 on the protective plate 12 is inserted into the through hole 10. During insertion, the first anti-detachment ring 14 and the second anti-detachment ring 15 deform. After insertion, the first anti-detachment ring 14 and the second anti-detachment ring 15 deform. The detachment ring 15 rebounds, and the outer side of the first anti-detachment ring 14 fits against the port of the through hole 10, which serves as a limiting effect after connection. Both the protective cover 8 and the protective plate 12 are made of rubber, which better protects the thermal glass ball 2 and prevents the thermal glass ball 2 from being damaged by impact when installing the fire sprinkler head body 1. After installation, the protective cover 8 and the protective plate 12 can be removed. After the protective cover 8 and the protective plate 12 are connected, the limiting plate 16 is inserted into the connecting post 11 to prevent the protective cover 8 and the protective plate 12 from detaching, which serves as a secondary anti-detachment effect. The fire sprinkler head body 1 is produced by Quanzhou Dasheng Security Technology Co., Ltd., and the specification is: T-ZSTZ 1593℃. The working principle and structure of this model are existing technologies and will not be described in detail here.

[0026] 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 with a quick-connect structure, comprising a fire sprinkler head body (1), wherein the fire sprinkler head body (1) includes a heat-sensitive glass bulb (2) and a threaded connector (3), characterized in that: The threaded connector (3) is located at one end of the fire sprinkler head body (1). A connecting mechanism is provided at one end of the threaded connector (3). The connecting mechanism includes a water supply pipe (4), a threaded groove (5), a water supply port (6), and a sealing gasket (7). A water supply pipe (4) is threadedly connected to one end of the threaded connector (3). A threaded groove (5) is provided at one end of the water supply pipe (4). A water supply port (6) is provided on the inner side of the water supply pipe (4). A sealing gasket (7) is placed at one end of the inner cavity of the threaded groove (5). A protective mechanism is provided on the outer side of the thermal glass ball (2).

2. A fire sprinkler head with a quick-connect structure according to claim 1, characterized in that: The fire sprinkler head body (1) is threadedly connected to the water supply pipe (4) through a threaded joint (3), and one end of the threaded joint (3) is tightly fitted to the outside of the sealing gasket (7).

3. A fire sprinkler head with a quick-connect structure according to claim 1, characterized in that: The protective mechanism includes a protective cover (8), a first C-shaped slot (9), a through hole (10), a connecting post (11), a protective plate (12), and a handle (13). The outer side of the thermal glass ball (2) is provided with a protective cover (8). The outer side of the protective cover (8) is provided with a first C-shaped slot (9). The outer side of the protective cover (8) is provided with a through hole (10). The inner side of the through hole (10) is connected to a connecting post (11). One end of the connecting post (11) is integrally formed with a protective plate (12). One side of the protective plate (12) is fixedly connected to a handle (13).

4. A fire sprinkler head with a quick-connect structure according to claim 3, characterized in that: The inner wall of the first C-shaped slot (9) is in contact with the outer wall of the thermosensitive glass ball (2), and the inner wall of the through hole (10) is in contact with the outer wall of the connecting column (11).

5. A fire sprinkler head with a quick-connect structure according to claim 3, characterized in that: An anti-detachment mechanism is provided on the outer side of one end of the connecting post (11). The anti-detachment mechanism includes a first anti-detachment ring (14), a second anti-detachment ring (15), a limiting plate (16), and a second C-shaped slot (17). The first anti-detachment ring (14) is integrally formed on the outer side of the connecting post (11), and the second anti-detachment ring (15) is integrally formed on the outer side of the connecting post (11). The limiting plate (16) is inserted into the outer side of the connecting post (11), and the second C-shaped slot (17) is opened on the outer side of the limiting plate (16).

6. A fire sprinkler head with a quick-connect structure according to claim 5, characterized in that: The inner wall of the second C-shaped slot (17) is in contact with the outer wall of the connecting column (11). The first anti-detachment ring (14) and the second anti-detachment ring (15) are both made of rubber. The limiting plate (16) is placed between the first anti-detachment ring (14) and the second anti-detachment ring (15).