Fire-fighting spray header

Abstract

The utility model relates to the technical field of fire-fighting equipment, and discloses a fire-fighting spray header which comprises a mounting pipe, a threaded through pipe, fixing frames and a glass bulb, mounting grooves are formed in the fixing frames, an electric push rod and a limiting rod are fixedly connected in the mounting grooves respectively, a bearing plate is fixed to the extending end of the electric push rod, and a driving motor is fixedly connected to the top of the bearing plate; the output shaft end of the driving motor is fixedly connected with a first bevel gear, one end of the first bevel gear is in meshed connection with a second bevel gear, the bottom of the second bevel gear is fixedly connected with a cleaning cylinder, the top wall face of an inner cavity of the cleaning cylinder is fixedly connected with a soft scraping ring, and the wall face of the inner cavity of the cleaning cylinder is fixedly connected with a plurality of cleaning brushes. According to the glass bulb cleaning device, through cooperation of the driving motor, the first bevel gear and the second bevel gear, the cleaning brush in the cleaning cylinder is driven to do circular motion, the cleaning cylinder is driven to move up and down through the electric push rod, then the soft scraping ring scrapes off dust on the outer wall of a glass bulb, and therefore the sensitivity of the glass bulb is prevented from being affected.

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 used in fire sprinkler systems. When a fire occurs, water is sprayed out through the sprinkler head's splash plate to extinguish the fire. They are classified into pendant sprinkler heads, upright sprinkler heads, ordinary sprinkler heads, and sidewall sprinkler heads.

[0003] A search revealed a fire sprinkler head (publication number CN221889094U) comprising a yoke arm seat, a yoke arm frame, a set bolt, a glass body, and a seal. The yoke arm frame is welded to one end of the yoke arm seat, and the seal is in movable contact with the inner wall of the yoke arm seat. By setting an inclined surface on the protrusion, when the glass body explodes, the fire water in the yoke arm seat washes away the seal. The impact force of the fire water flow on the seal pushes it out from the inclined surface, thus better and faster washing away the seal and improving the timeliness of fire extinguishing. When the water flows through the inclined surface, a certain vortex is generated, which helps to increase the speed of the water flow and the drainage capacity. At the same time, the inclined surface design makes the water flow more smoothly and reduces the resistance of the water flow, thereby improving the drainage efficiency of the entire system. In addition, the inclined surface can determine the direction of the seal falling, which facilitates the recovery of the seal for subsequent reuse.

[0004] In the aforementioned existing technical solutions, no cleaning mechanism is provided for the glass body. Dust or dirt on the surface of the glass body (glass bulb) may change its heat conduction efficiency. Dust, to a certain extent, isolates the heat conduction between the temperature sensing element and the surrounding environment, which will affect its sensitivity, causing it to be unable to accurately sense temperature changes, or delaying the start-up time.

[0005] Therefore, we propose a fire sprinkler head. Utility Model Content

[0006] The present invention aims to solve the technical problems existing in the prior art and provide a fire sprinkler head.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a fire sprinkler head, comprising an installation pipe, a threaded pipe, a fixing frame, and a glass bulb. Each fixing frame has an installation groove, in which an electric push rod and a limiting rod are fixedly connected respectively. A bearing plate is fixedly attached to the extended end of the electric push rod. A drive motor is fixedly connected to the top of the bearing plate. A bevel gear one is fixedly connected to the output shaft end of the drive motor. A bevel gear two is meshed at one end of bevel gear one. A cleaning cylinder is fixedly connected to the bottom of bevel gear two. A soft scraper ring is fixedly connected to the top wall of the inner cavity of the cleaning cylinder. Multiple cleaning brushes are fixedly connected to the inner wall of the cleaning cylinder.

[0008] Preferably, a limiting block is slidably connected to the limiting rod, and a connecting rod is fixedly connected to the side wall of the bearing plate and the limiting block.

[0009] Preferably, the bevel gear 2 is slidably connected to the glass bulb.

[0010] Preferably, the soft scraper ring has a frustum-shaped structure that is wider at the top and narrower at the bottom, with the bottom of the soft scraper ring fitting against the outer wall of the glass bulb.

[0011] Preferably, the opposite end of the cleaning brush is adapted to the outer wall surface of the glass bulb.

[0012] Preferably, the limiting block is aligned with the horizontal position of the bearing plate, and the connecting rod has a U-shaped structure.

[0013] This utility model provides a fire sprinkler head. It has the following beneficial effects:

[0014] 1. This fire sprinkler head, through the cooperation of a drive motor and bevel gears, drives the cleaning brush inside the cleaning cylinder to make a circular motion, and through an electric push rod, drives the cleaning cylinder to move up and down, thereby causing the soft scraper ring to scrape off the dust on the outer wall of the glass bulb, thus avoiding affecting its sensitivity.

[0015] 2. This type of fire sprinkler head, through the cooperation of the limiting rod, the limiting block, the connecting rod, and the bearing plate, makes the movement of the cleaning cylinder more stable. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 3 This is a schematic diagram showing the structural details of the cleaning cylinder of this utility model;

[0021] Figure 4 This is a schematic diagram showing the disassembly of the soft scraper ring and the cleaning cylinder of this utility model.

[0022] Legend:

[0023] 1. Mounting pipe; 2. Threaded pipe; 3. Fixing bracket; 301. Mounting groove; 4. Glass bulb; 5. Limiting rod; 501. Limiting block; 6. Electric push rod; 601. Bearing plate; 7. Drive motor; 701. Bevel gear one; 702. Bevel gear two; 8. Cleaning cylinder; 801. Soft scraper ring; 802. Cleaning brush; 9. Connecting rod. Detailed Implementation

[0024] 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.

[0025] Example: A fire sprinkler head, such as Figures 1-4 As shown, the device comprises an installation tube 1, a threaded pipe 2, a fixing bracket 3, and a glass bulb 4. The threaded pipe 2 is fixedly connected to the top of the installation tube 1, and the glass bulb 4 is located at the bottom of the installation tube 1. The fixing bracket 3 is located at the bottom of the installation tube 1 and on both sides of the glass bulb 4. Both fixing brackets 3 are L-shaped structures with mirrored configurations. Each fixing bracket 3 has an installation groove 301. An electric push rod 6 is fixedly connected to the bottom of the inner cavity of the left installation groove 301, and a bearing plate 601 is fixedly connected to the extended end of the electric push rod 6. A limit rod 5 is longitudinally connected to the inner cavity of the other installation groove 301, and a limit block 501 is slidably connected to the limit rod 5. The limit block 501 is horizontally aligned with the bearing plate 601. The bearing plate 601 and the limit block... A U-shaped connecting rod 9 is fixedly connected to the side wall of 501. A drive motor 7 is fixedly connected to the top of the bearing plate 601. A bevel gear 701 is fixedly connected to the output shaft end of the drive motor 7. A bevel gear 702 is meshed with one end of the bevel gear 701. The bevel gear 702 is slidably connected to the glass bulb 4. A cleaning cylinder 8 is fixedly connected to the bottom of the bevel gear 702. A soft scraping ring 801 is fixedly connected to the top wall of the inner cavity of the cleaning cylinder 8. The soft scraping ring 801 has a frustum-shaped structure that is wider at the top and narrower at the bottom. The bottom of the soft scraping ring 801 is in contact with the outer wall of the glass bulb 4. Multiple cleaning brushes 802 are fixedly connected to the inner wall of the cleaning cylinder 8. The opposite end of the cleaning brush 802 is adapted to the outer wall of the glass bulb 4.

[0026] The working principle of this utility model:

[0027] In use, the drive motor 7 is started to drive the bevel gear 701 to rotate, which in turn drives the bevel gear 702 that meshes with it to rotate. As a result, the cleaning brush 802 inside the cleaning cylinder 8 wipes the dust on the outside of the glass bulb 4. At the same time, the electric push rod 6 is started to drive the drive motor 7 to move up and down, which in turn drives the cleaning cylinder 8 to move up and down. The soft scraper ring 801 scrapes off the dust on the outer wall of the glass bulb 4.

[0028] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fire sprinkler head, comprising an installation pipe (1), a threaded through pipe (2), a fixing bracket (3), and a glass bulb (4), characterized in that: Each of the fixed frames (3) is provided with an installation slot (301). An electric push rod (6) and a limiting rod (5) are fixedly connected in the installation slot (301). A bearing plate (601) is fixedly connected to the extended end of the electric push rod (6). A drive motor (7) is fixedly connected to the top of the bearing plate (601). A bevel gear (701) is fixedly connected to the output shaft end of the drive motor (7). A bevel gear (702) is meshed with one end of the bevel gear (701). A cleaning cylinder (8) is fixedly connected to the bottom of the bevel gear (702). A soft scraping ring (801) is fixedly connected to the top wall of the inner cavity of the cleaning cylinder (8). Multiple cleaning brushes (802) are fixedly connected to the inner wall of the cleaning cylinder (8).

2. A fire sprinkler head according to claim 1, characterized in that: A limiting block (501) is slidably connected to the limiting rod (5), and a connecting rod (9) is fixedly connected to the side wall of the bearing plate (601) and the limiting block (501).

3. A fire sprinkler head according to claim 1, characterized in that: The second bevel gear (702) is slidably connected to the glass bulb (4).

4. A fire sprinkler head according to claim 1, characterized in that: The soft scraper (801) has a frustum-shaped structure that is wider at the top and narrower at the bottom, and the bottom of the soft scraper (801) is in contact with the outer wall of the glass bulb (4).

5. A fire sprinkler head according to claim 1, characterized in that: The cleaning brush (802) is adapted to the outer wall surface of the glass bulb (4) at one end.

6. A fire sprinkler head according to claim 2, characterized in that: The limiting block (501) is in the same horizontal position as the bearing plate (601), and the connecting rod (9) has a U-shaped structure.

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