Spray head structure for fire engineering
By improving the structure of the fire sprinkler head and adopting components such as yoke arm seat, yoke arm frame, and glass body, the problems of easy damage and poor sealing of the sprinkler head were solved, achieving protection and stable installation, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING RONGDA FIRE FIGHTING ENG CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-05
AI Technical Summary
Existing fire sprinklers are prone to breakage due to accidental impacts, leading to water waste and increased maintenance costs. At the same time, threaded connections are susceptible to water corrosion, affecting sealing performance and making disassembly difficult.
It adopts components such as yoke arm seat, yoke arm frame, glass body, connecting pipe and threaded pipe, and achieves rapid installation through guardrails and mounting parts, which enhances protection and sealing and reduces maintenance complexity.
It effectively prevents the nozzle from breaking due to impact, improves sealing and installation stability, and reduces maintenance costs and difficulty.
Smart Images

Figure CN224193992U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection engineering technology, specifically to a sprinkler head structure for fire protection engineering. Background Technology
[0002] Fire sprinkler heads are the core components of automatic sprinkler systems, and their structural design directly affects fire prevention and control effectiveness. Modern sprinkler heads mainly consist of a pressure-resistant housing, a temperature-sensing activation mechanism, a water flow dispersion device, and an intelligent monitoring module.
[0003] Currently, sprinkler heads used in fire protection engineering are generally installed under the ceiling of buildings. However, existing sprinkler heads are usually exposed and easily broken due to external impacts. This not only leads to water waste from spraying but also significantly increases maintenance costs due to system drainage. Furthermore, existing sprinkler heads are generally connected to water pipes directly by threads. Threaded connections are prone to corrosion and rusting over long-term use, affecting sealing performance and making disassembly difficult, causing many inconveniences for daily inspection and maintenance. Utility Model Content
[0004] The purpose of this utility model is to provide a sprinkler head structure for fire protection engineering to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sprinkler head structure for fire protection engineering, including a yoke arm seat, and further comprising:
[0006] A yoke arm frame is fixed to both sides of the bottom of the yoke arm seat. A glass body is installed between the top of the yoke arm frame and the yoke arm seat by a set screw. A toothed rib is fixedly connected to the bottom of the yoke arm frame.
[0007] A connecting pipe is fixed to the top of the yoke arm seat. A threaded pipe is provided at the top of the connecting pipe. A positioning shell is fixedly connected to one side of the connecting pipe. An installation component for installing the threaded pipe is provided inside the positioning shell. The installation component includes a first toothed plate and a spring.
[0008] Preferably, extension plates are fixedly connected to both sides of the yoke arm seat, and the first guardrail and the second guardrail are respectively installed inside the two extension plates by screws.
[0009] Preferably, a housing is fixedly connected to one side of the first guardrail, and a plug block that works in conjunction with the housing is fixedly connected to one side of the second guardrail.
[0010] Preferably, a plug is fixedly connected to one side of the connecting pipe, and a fixing post for use with the plug is fixedly connected to one side of the threaded pipe.
[0011] Preferably, a sealing groove is provided at the top of the connecting pipe, and a sealing ring is fixedly connected to the bottom of the threaded pipe.
[0012] Preferably, a sealing gasket is fixedly connected to the inner wall of the threaded pipe, and the outer ring of the sealing gasket is in contact with the inner wall of the connecting pipe.
[0013] Preferably, a reinforcing block is fixedly connected to the bottom of the positioning shell, and one side of the reinforcing block is fixedly connected to the connecting pipe.
[0014] Preferably, the first toothed plate is fixed to one side of the threaded pipe, the spring is fixed to one side inside the positioning shell, a second toothed plate is fixedly connected to one side of the spring, and a pull rod extending through to the outside of the positioning shell is fixedly connected to one side of the second toothed plate.
[0015] Preferably, sliders are fixedly connected to both the front and rear sides of the second toothed plate, and the positioning shell has a groove inside that cooperates with the sliders.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This utility model first uses a first guardrail and a second guardrail to be installed inside the extension plate by screws, thereby protecting the glass body and the surface of the yoke boom, reducing the risk of external objects colliding with the fire sprinkler system. It is then installed on the water supply pipe via a threaded pipe, and with the help of the mounting hardware, the connecting pipe can be used to drive the yoke boom seat to be installed on the threaded pipe as a whole, thus achieving quick installation and reducing the complexity of maintenance. Attached Figure Description
[0018] Figure 1 A structural schematic diagram of the fire-fighting nozzle structure provided by this utility model;
[0019] Figure 2 A schematic diagram of the unfolded structure of the threaded pipe provided by this utility model;
[0020] Figure 3 A schematic diagram of the unfolded structure of the guardrail provided by this utility model;
[0021] Figure 4 A schematic diagram of the mounting component provided by this utility model.
[0022] In the diagram: 1. Yoke arm seat; 2. Yoke arm frame; 3. Glass body; 4. Connecting pipe; 41. Toothed rib; 5. Threaded pipe; 6. Positioning shell; 7. Mounting component; 701. First toothed plate; 702. Spring; 703. Second toothed plate; 704. Tie rod; 705. Slider; 8. Extension plate; 9. First guardrail; 10. Second guardrail; 11. Insert shell; 12. Insert block; 13. Insert post; 14. Fixing post; 15. Sealing groove; 16. Sealing ring; 17. Sealing gasket; 18. Reinforcing block. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-4 As shown, a sprinkler structure for fire protection engineering includes a yoke arm seat 1 and a yoke arm frame 2 fixed to both sides of the bottom of the yoke arm seat 1. A glass body 3 is installed between the top of the yoke arm frame 2 and the yoke arm seat 1 through set screws. A toothed rib 41 is fixedly connected to the bottom of the yoke arm frame 2. It should be noted that the yoke arm seat 1, as the main support structure, is directly connected to the water supply pipe; the yoke arm frame 2 is rigidly connected to the yoke arm seat 1 through a precision mechanical structure, together forming the load-bearing frame of the sprinkler head; the temperature-sensitive glass body 3, as a key triggering element, is precisely installed at the stress-bearing part of the yoke arm frame 2; and the specially designed toothed rib 41 is used to ensure the uniformity of water flow dispersion. When the ambient temperature reaches a preset threshold, the glass body 3 breaks due to thermal expansion, releasing the constraint on the yoke arm frame 2, thereby opening the water path to achieve sprinkler fire extinguishing. This structural design ensures rapid response while also ensuring the reliability of the sprinkler head operation. This is prior art, which is clearly known to those skilled in the art and will not be elaborated here.
[0025] A connecting pipe 4 is fixed to the top of the yoke arm seat 1. A threaded pipe 5 is provided on the top of the connecting pipe 4. A positioning shell 6 is fixedly connected to one side of the connecting pipe 4. An installation component 7 for installing the threaded pipe 5 is provided inside the positioning shell 6. The installation component 7 includes a first toothed plate 701 and a spring 702. It is fixed to the top of the yoke arm seat 1 through the connecting pipe 4. This facilitates the flow of spray water and can be used to fix the threaded pipe 5 in conjunction with the installation component 7. The top of the threaded pipe 5 is provided with a threaded end for connection with other water supply pipes.
[0026] Both sides of the yoke arm seat 1 are fixedly connected to extension plates 8. The first guardrail 9 and the second guardrail 10 are respectively installed inside the two extension plates 8 by screws. The first guardrail 9 is fixedly connected to one side of the insert shell 11, and the second guardrail 10 is fixedly connected to one side of the insert block 12 that is used with the insert shell 11. The extension plates 8 facilitate the fixed installation of the first guardrail 9 and the second guardrail 10 with screws, while the insert block 12 can be inserted into the insert shell 11, which facilitates the insertion between the first guardrail 9 and the second guardrail 10, making assembly easier and improving the protective strength.
[0027] A pin 13 is fixedly connected to one side of the connecting pipe 4, and a fixing post 14 for use with the pin 13 is fixedly connected to one side of the threaded pipe 5. A sealing groove 15 is opened at the top of the connecting pipe 4, and a sealing ring 16 is fixedly connected to the bottom of the threaded pipe 5. A sealing gasket 17 is fixedly connected to the inner wall of the threaded pipe 5. The outer ring of the sealing gasket 17 fits against the inner wall of the connecting pipe 4. The pin 13 can be inserted into the interior of the fixing post 14. When the connecting pipe 4 and the threaded pipe 5 are assembled with the mounting part 7, the pin 13 can improve the connection strength on the other side and ensure the stability of the installation. The sealing groove 15 and the sealing ring 16 can improve the sealing performance of the connection when the threaded pipe 5 and the connecting pipe 4 are installed, preventing water leakage at the connection position. In addition, the sealing gasket 17 can seal the connection between the inner wall of the connecting pipe 4 and the threaded pipe 5, thereby greatly improving the connection sealing performance.
[0028] A reinforcing block 18 is fixedly connected to the bottom of the positioning shell 6. One side of the reinforcing block 18 is fixedly connected to the connecting pipe 4. By fixing the reinforcing block 18 between the positioning shell 6 and the connecting pipe 4, the sealing performance between the positioning shell 6 and the connecting pipe 4 can be improved.
[0029] The first toothed plate 701 is fixed to one side of the threaded pipe 5, and the spring 702 is fixed to one side inside the positioning shell 6. A second toothed plate 703 is fixedly connected to one side of the spring 702, and a pull rod 704 extending through to the outside of the positioning shell 6 is fixedly connected to one side of the second toothed plate 703. Slider 705s are fixedly connected to both the front and rear sides of the second toothed plate 703. The positioning shell 6 has a groove inside that matches the slider 705. When the user needs to install and fix the connecting pipe 4 and the threaded pipe 5, the threaded pipe 5 is first installed on the water supply pipe, and then the connecting pipe 4 drives the positioning shell 6 to be inserted into the surface of the first toothed plate 701. At this time, the user pulls the pull rod 704, which will drive the second toothed plate 703 to move and compress the spring 702 until the positioning shell 6 completely covers the surface of the first toothed plate 701. Then the user loosens the pull rod 704, and the elasticity of the spring 702 causes the second toothed plate 703 to reset and lock into the surface of the first toothed plate 701, thereby completing the installation and fixation between the connecting pipe 4 and the threaded pipe 5.
[0030] Working principle: First, when the user needs to install the yoke arm seat 1 on the building ceiling, the threaded end of the threaded pipe 5 is first installed on the conveying pipe. Then, the yoke arm seat 1 drives the connecting pipe 4 and the positioning shell 6 to be inserted into the surface of the first toothed plate 701. At this time, the user pulls the pull rod 704, which will drive the second toothed plate 703 to move and compress the spring 702 until the positioning shell 6 completely covers the surface of the first toothed plate 701. Then, the user releases the pull rod 704, and the elasticity of the spring 702 causes the second toothed plate 703 to reset and lock into the surface of the first toothed plate 701, thereby completing the installation and fixation between the connecting pipe 4 and the threaded pipe 5. At this time, the insertion post 13 will also be inserted into the inner part of the fixing post 14. The sealing ring 16 is inserted into the sealing groove 15 when the connecting pipe 4 and the threaded pipe 5 overlap, thereby improving the sealing performance and preventing water leakage at the connection position. In addition, the sealing gasket 17 can seal the connection between the inner wall of the connecting pipe 4 and the threaded pipe 5, thereby greatly improving the connection sealing performance. Then, the first guardrail 9 and the second guardrail 10 are fixed to the bottom of the extension plate 8 with screws, and the insert block 12 is inserted into the insert shell 11, which facilitates the insertion between the first guardrail 9 and the second guardrail 10. This facilitates assembly and also improves the protection strength. Through this setting, the spray situation can be prevented from being triggered by accidental bumps to the glass body 3.
[0031] 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.
[0032] 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 sprinkler head structure for fire protection engineering, comprising a yoke arm seat (1), characterized in that, Also includes: A yoke arm frame (2) is fixed on both sides of the bottom of the yoke arm seat (1). A glass body (3) is installed between the top of the yoke arm frame (2) and the yoke arm seat (1) by a set screw. A toothed rib (41) is fixedly connected to the bottom of the yoke arm frame (2). A connecting pipe (4) is fixed to the top of the yoke arm seat (1). A threaded pipe (5) is provided on the top of the connecting pipe (4). A positioning shell (6) is fixedly connected to one side of the connecting pipe (4). An installation component (7) for installing the threaded pipe (5) is provided inside the positioning shell (6). The installation component (7) includes a first toothed plate (701) and a spring (702).
2. The sprinkler head structure for fire protection engineering according to claim 1, characterized in that: Both sides of the yoke arm seat (1) are fixedly connected to extension plates (8), and the first guardrail (9) and the second guardrail (10) are respectively installed inside the two extension plates (8) by screws.
3. The sprinkler head structure for fire protection engineering according to claim 2, characterized in that: The first guardrail (9) has a housing (11) fixedly connected to one side, and the second guardrail (10) has a plug (12) fixedly connected to one side for use with the housing (11).
4. The sprinkler head structure for fire protection engineering according to claim 1, characterized in that: A plug (13) is fixedly connected to one side of the connecting pipe (4), and a fixing post (14) that is used in conjunction with the plug (13) is fixedly connected to one side of the threaded pipe (5).
5. The sprinkler head structure for fire protection engineering according to claim 1, characterized in that: The top of the connecting pipe (4) is provided with a sealing groove (15), and the bottom of the threaded pipe (5) is fixedly connected with a sealing ring (16).
6. The sprinkler head structure for fire protection engineering according to claim 1, characterized in that: A sealing gasket (17) is fixedly connected to the inner wall of the threaded pipe (5), and the outer ring of the sealing gasket (17) is in contact with the inner wall of the connecting pipe (4).
7. The sprinkler head structure for fire protection engineering according to claim 1, characterized in that: The bottom of the positioning shell (6) is fixedly connected to a reinforcing block (18), and one side of the reinforcing block (18) is fixedly connected to the connecting pipe (4).
8. The sprinkler head structure for fire protection engineering according to claim 1, characterized in that: The first toothed plate (701) is fixed to one side of the threaded pipe (5), the spring (702) is fixed to one side inside the positioning shell (6), the second toothed plate (703) is fixedly connected to one side of the spring (702), and a pull rod (704) that extends through to the outside of the positioning shell (6) is fixedly connected to one side of the second toothed plate (703).
9. A sprinkler head structure for fire protection engineering according to claim 8, characterized in that: The front and rear sides of the second toothed plate (703) are fixedly connected with sliders (705), and the interior of the positioning shell (6) is provided with a groove for use with the sliders (705).