Fire-fighting spraying nozzle for constructional engineering
By using a conical nozzle and an arc-shaped surface structure in the fire sprinkler head, combined with a water flow-driven rotating mechanism, the problem of incomplete coverage directly below when the spray range is large is solved, achieving uniform spraying and no dead angles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-06
AI Technical Summary
When the existing fire sprinkler head has a large spray range, a blind spot may easily appear directly below it, which cannot be effectively covered.
A fire sprinkler head for building engineering was designed, which adopts a conical nozzle and a circular arc surface structure. The nozzle gradually increases from top to bottom and is equipped with a water flow driven rotation mechanism. The rotation of the nozzle is achieved by a spiral belt and a dispersion vane, ensuring that the spray range is uniform and covers the area directly below.
While achieving wide-area spraying, it also ensures effective coverage directly below, avoiding spray dead zones and making the spraying more uniform.
Smart Images

Figure CN223969398U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire sprinkler head technology, specifically a fire sprinkler head for building engineering. Background Technology
[0002] Fire sprinkler heads are widely used in various locations, including commercial buildings, industrial facilities, and residential buildings. Existing fire sprinkler heads generally spray in a ring shape, and the farther the spray distance, the larger the spray range. However, a larger spray range will create a large gap directly below, resulting in incomplete spraying of the area directly below. Therefore, a fire sprinkler head for building construction is designed to have a larger spray range while ensuring that the area directly below is sprayed, avoiding the problem of spray dead zones directly below. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this utility model provides a fire sprinkler head for building engineering, which has a large spray range and ensures that the area directly below is sprayed effectively, thus avoiding the problem of blind spots in the spray.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution: a fire sprinkler head for building engineering, comprising a fixing ring, a conical nozzle rotatably connected to the bottom of the fixing ring, an arc surface circumferentially provided at the bottom of the conical nozzle, multiple layers of nozzles being provided on the arc surface from top to bottom, the number of multiple layers of nozzles increasing sequentially from bottom to bottom, a water flow driven rotation mechanism being provided inside the conical nozzle, and multiple dispersion blades being provided circumferentially and vertically spaced on the arc surface.
[0007] Preferably, the number of multi-layer nozzles increases exponentially from bottom to top.
[0008] Preferably, the water flow driven rotation mechanism includes a fixed shaft fixedly installed inside the conical nozzle, and a spiral band with a certain gap between it and the inner sidewall of the arc surface is fixedly installed on the fixed shaft.
[0009] Preferably, a limiting ring is fixedly installed below the fixing ring via multiple connecting rods, and a rotating ring platform fixedly connected to the conical nozzle is provided between the fixing ring and the limiting ring.
[0010] Preferably, multiple omnidirectional balls are circumferentially distributed on both the upper and lower sides of the rotating ring platform.
[0011] Preferably, the plurality of dispersing blades are spaced apart between the nozzles of the upper and lower layers, and the plurality of dispersing blades are provided with water outlet notches adapted to the nozzles.
[0012] (III) Beneficial Effects
[0013] Compared with the prior art, this utility model provides a fire sprinkler head for building engineering, which has the following beneficial effects:
[0014] The fire sprinkler head used in this building project features a conical nozzle, an arc-shaped surface, and multiple nozzles arranged from top to bottom on the arc-shaped surface. This facilitates the formation of a multi-layered, circular spray curtain wall. The spray range decreases progressively from top to bottom, with the lowest nozzle spraying directly below. The number of nozzles increases progressively from bottom to top, thereby increasing the spray area of the upper layers and making the spray more uniform. By incorporating a water-driven rotation mechanism, the water flow drives the entire conical nozzle to rotate during spraying, allowing multiple nozzles to rotate and further ensuring no blind spots in the spray. This fire sprinkler head for building projects has a large spray range and ensures that the area directly below is sprayed effectively, avoiding the problem of blind spots in the spray. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall disassembled structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 3 This is a structural schematic diagram of the present invention from other perspectives after overall disassembly;
[0018] Figure 4 This utility model Figure 3 A magnified schematic diagram of the partial structure at point A in the middle;
[0019] Figure 5 This is a structural schematic diagram of the present invention from other perspectives.
[0020] The following are labels in the attached diagram: 1. Fixing ring; 2. Conical nozzle; 3. Arc surface; 4. Nozzle; 5. Fixing shaft; 6. Spiral belt; 7. Dispersion vane; 8. Water outlet notch; 9. Rotating ring platform; 10. Limiting ring; 11. Connecting rod; 12. Universal ball. Detailed Implementation
[0021] 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.
[0022] Example:
[0023] Please see Figure 1-5 A fire sprinkler head for building construction includes a fixing ring 1, a conical nozzle 2 rotatably connected to the bottom of the fixing ring 1, an arc surface 3 circumferentially arranged at the bottom of the conical nozzle 2, and multiple layers of nozzles 4 opened from top to bottom on the arc surface 3, with the number of multiple layers of nozzles 4 increasing sequentially from bottom to bottom. A water flow driven rotation mechanism is provided inside the conical nozzle 2, and multiple dispersion deflectors 7 are arranged vertically at intervals on the arc surface 3 circumferentially. This fire sprinkler head for building construction can be used alone or in conjunction with traditional fire sprinkler heads in building construction. Furthermore, the dispersion deflectors 7 are fixedly installed on the arc surface 3.
[0024] Specifically, the number of multi-layer nozzles 4 increases exponentially from bottom to top, making installation easier.
[0025] Specifically, the water flow driven rotation mechanism includes a fixed shaft 5 fixedly installed inside the conical nozzle 2. A spiral belt 6 with a certain gap between it and the inner sidewall of the arc surface 3 is fixedly installed on the fixed shaft 5. The fixed shaft 5 and the spiral belt 6 facilitate the rotation of the spiral belt 6, the fixed shaft 5, and the conical nozzle 2 as a whole when the water flows out.
[0026] Specifically, a limiting ring 10 is fixedly installed below the fixed ring 1 via multiple connecting rods 11. A rotating ring platform 9, which is fixedly connected to the conical nozzle 2, is provided between the fixed ring 1 and the limiting ring 10. The rotating ring platform 9, as well as the fixed ring 1 and the limiting ring 10, facilitate the guidance and limiting of the conical nozzle 2, ensuring the rotation of the conical nozzle 2 while preventing the conical nozzle 2 from detaching from the fixed ring 1.
[0027] Specifically, multiple omnidirectional balls 12 are circumferentially distributed on both the upper and lower sides of the rotating ring platform 9. By setting multiple omnidirectional balls 12, the smoothness of the rotation of the rotating ring platform 9 is facilitated, and the smoothness of the rotation of the cone nozzle 2 is further guaranteed.
[0028] Specifically, multiple dispersing blades 7 are spaced apart between the upper and lower nozzles 4, and the multiple dispersing blades 7 are provided with water outlet notches 8 that are adapted to the nozzles 4. The dispersing blades 7 can facilitate the acceleration of the water flow from the nozzles 4 and increase its spray range.
[0029] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.
[0030] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).
[0031] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A fire protection sprinkler for use in construction work, characterised in that: The utility model relates to a fixed ring (1), the bottom rotation connection of fixed ring (1) has conical shower head (2), the bottom circumferential arrangement of conical shower head (2) has circular arc surface (3), the circular arc surface (3) is opened from top to bottom and is equipped with multilayer spout (4), the number of multilayer spout (4) from bottom to top increases gradually, the water flow drive rotating mechanism is arranged in conical shower head (2), the circular arc surface (3) is circumferentially and vertically spaced apart and is equipped with a plurality of dispersion paddle (7).
2. A fire protection sprinkler for use in construction work according to claim 1, characterised in that: The number of multilayer spout (4) from bottom to top increases by multiple.
3. A fire protection sprinkler for use in construction work according to claim 2, characterised in that: The water flow drive rotating mechanism includes a fixed shaft (5) fixedly installed in the conical shower head (2), and a spiral belt (6) with a certain gap from the inner wall of the circular arc surface (3) is fixedly installed on the fixed shaft (5).
4. A fire protection sprinkler for use in construction work according to claim 3, characterised in that: A limiting ring (10) is fixedly installed below the fixed ring (1) through a plurality of connecting rods (11), and a rotating ring table (9) fixedly connected with the conical shower head (2) is arranged between the fixed ring (1) and the limiting ring (10).
5. A fire protection sprinkler for use in construction work according to claim 4, characterised in that: A plurality of universal balls (12) are circumferentially and vertically distributed on the rotating ring table (9).
6. A fire protection sprinkler for use in construction work according to claim 5 wherein: A plurality of dispersion paddles (7) are arranged between the upper and lower layers of spouts (4), and a water outlet gap (8) matched with the spout (4) is formed on the plurality of dispersion paddles (7).