High-temperature-resistant drainage valve
By designing a high-temperature drainage valve, using a conical structure and a water cooling sealing ring, the problem of the sealing ring melting in a drone fire protection system in a high-temperature environment is solved, and the sealing effect in a high-temperature environment is achieved, ensuring the smooth progress of fire protection operations.
Patent Information
- Application Number
- CN202510762114.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2025-08-19
AI Technical Summary
The drain valve of traditional drone fire protection system is prone to melt in high temperature environments, causing the valve to leak and affect the fire protection effect.
A high-temperature drainage valve is designed, and the valve body and valve cover are used with a conical structure, which are sealed with the conical surfaces of the convex and concave parts, and a sealing ring is installed on the valve cover, and the sealing ring is cooled by fire water to improve sealing.
In a high temperature environment, the sealing ring is cooled by water to prevent the sealing ring from melting, improving the sealing effect of the valve and ensuring the smooth progress of fire-fighting operations.
Smart Images
Figure CN120506498A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of unmanned aerial vehicle (UAV) firefighting technology, and in particular to a high-temperature resistant drainage valve. Background Art
[0002] Traditional fire trucks are limited by the height of their ladders and traffic conditions, making it difficult for them to handle fires in high-rise buildings. While existing drone firefighting technology is flexible, the drain valve under the drone's water tank uses an end-face seal. When the drone flies above the flame, the sealing ring of the drain valve is easily melted by the high temperature of the flame, causing the valve to leak. Summary of the Invention
[0003] The purpose of the present invention is to provide a high-temperature resistant drainage valve in response to the above-mentioned problems existing in the existing technology. The technical problem to be solved by the present invention is how to improve the sealing effect of the valve in a high-temperature environment.
[0004] The objectives of the present invention can be achieved through the following technical solutions: a high-temperature resistant drainage valve, comprising a valve body, a hinge fixed at one end to one side of the valve body, a rotating device fixed to the other side of the valve body, a valve cover fixed to the other end of the hinge, and a sealing ring arranged on the valve cover, wherein a convex portion is provided at one end of the valve cover, an annular groove is provided on the outer surface of the convex portion, a second concave portion is provided on the convex portion, and the cross-section of the second concave portion is convex-shaped, and the sealing ring is arranged in the annular groove.
[0005] Furthermore, the depth of the second concave portion is not less than the height of the convex portion.
[0006] Furthermore, a first concave portion is provided at one end of the valve body, the first concave portion is conical, the convex portion is conical, and the first concave portion cooperates with the conical surface of the convex portion.
[0007] The beneficial effects of the present invention are as follows: a conical first recess is provided at one end of the valve body, a conical convex portion is provided at one end of the valve cover, and an annular groove is provided on the convex portion for installing a sealing ring, thereby realizing sealing of the valve cone surface; at the same time, the depth of the second recess is not less than the height of the convex portion, and the cross-section of the second recess is in the shape of a convex letter, so that when the valve is in a high-temperature environment, the water in the second recess can cool the valve cover with the sealing ring installed, thereby preventing the sealing ring from melting at high temperature and improving the sealing effect of the valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a three-dimensional structural diagram of the valve when it is open.
[0009] Figures 2-3 They are schematic diagrams of the three-dimensional structure of the valve under different viewing angles when it is closed.
[0010] Figure 4 yes Figure 3 A-direction sectional view.
[0011] Figure 5 yes Figure 4 A partial enlarged view in the B direction.
[0012] Figure 6 This is a schematic diagram of the three-dimensional structure of the valve installed under the water bucket inside the drone.
[0013] In the figure, 1. valve body; 11. first recess; 2. hinge; 3. rotating device; 31. rotating arm; 4. valve cover; 41. protrusion; 42. annular groove; 43. second recess; 5. sealing ring; 6. drone; 7. bucket. DETAILED DESCRIPTION
[0014] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.
[0015] like Figures 1 to 4 As shown, it includes a valve body 1, a hinge 2, a rotating device 3, a valve cover 4, and a sealing ring 5, wherein one end of the hinge 2 is fixed to one side of the valve body 1, the rotating device 3 is fixed to the other side of the valve body 1, the valve cover 4 is fixed to the other end of the hinge 2, and the sealing ring 5 is arranged on the valve cover 4; a first recess 11 is provided at one end of the valve body 1, and the first recess 11 is conical and is used to guide the valve cover 4 when closing the cover; the two ends of the hinge 2 are respectively fixed to the valve body 1 and the valve cover 4, and are used to rotate and connect the valve body 1 and the valve cover 4; the rotating device 3 is preferably a steering gear, and the rotating device A rotating arm 31 is provided on the device 3 for controlling the opening and closing of the valve body 1 and the valve cover 4; a convex portion 41 is provided at one end of the valve cover 4, and the convex portion 41 is conical for forming a conical surface with the first concave portion 11, thereby facilitating the positioning of the valve body 1 and the valve cover 4, and also facilitating the automatic opening of the valve cover 4 by the weight of the valve cover 4 when there is no support from the rotating arm 31. An annular groove 42 is provided on the outer surface of the convex portion 41 for mounting the sealing ring 5 to achieve conical surface sealing between the first concave portion 11 and the convex portion 41; the convex portion 41 is provided with a second concave portion 43, as shown Figure 5 As shown, the depth of the second recess 43 is not less than the height of the convex portion 41. The cross-section of the second recess 43 is in a convex shape, which facilitates heat dissipation near the annular groove 42 on the valve cover 4, thereby improving the high temperature resistance of the sealing ring 5; a rotating arm 31 is provided on the rotating device 3 to control the opening and closing of the valve body 1 and the valve cover 4; the valve body 1 and the valve cover 4 are preferably made of 7075 aluminum alloy, which is light in weight and has good heat dissipation.
[0016] Before use, if Figure 6As shown, the valve is installed at the outlet below the bucket 7 in the drone 6, the valve cover 4 is rotated and closed around the rotation axis of the hinge 2, the rotating arm 31 of the rotating device 3 is driven to rotate, so that the rotating arm 31 supports the valve cover 4, the valve is closed, the bucket 7 is filled with fire water, the drone 6 is remotely controlled to fly above the flame, the rotating arm 31 of the rotating device 3 is driven to rotate, and the valve cover 4 uses its own weight without the support of the rotating arm 31 to rotate the valve cover 4 around the rotation axis of the hinge 2, the valve cover 4 is opened, and the fire water flows out through the valve body 1 to achieve fire extinguishing.
[0017] The advantages are: a conical first recess 11 is provided at one end of the valve body 1, a conical convex portion 41 is provided at one end of the valve cover 4, and an annular groove 42 is provided on the convex portion 41 for installing the sealing ring 5, so as to realize the valve cone sealing, and at the same time, the depth of the second recess 43 on the valve cover 4 is not less than the height of the convex portion 41 and the cross-section of the second recess 43 is convex, so that when the valve is in a high temperature environment, the fire water in the second recess 43 can cool the valve cover 4 with the sealing ring 5 installed, prevent the sealing ring 5 from melting at high temperature, thereby improving the valve sealing effect.
[0018] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.
[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A high-temperature resistant drain valve, comprising a valve body (1), a hinge (2) with one end fixed to one side of the valve body (1), a rotating device (3) fixed to the other side of the valve body (1), a valve cover (4) fixed to the other end of the hinge (2), and a sealing ring (5) provided on the valve cover (4), characterized in that: A convex portion (41) is provided at one end of the valve cover (4), an annular groove (42) is provided on the outer surface of the convex portion (41), a second concave portion (43) is provided on the convex portion (41), and the cross section of the second concave portion (43) is convex-shaped. The sealing ring (5) is arranged in the annular groove (42).
2. A high temperature resistant drain valve according to claim 1, characterized in that: The depth of the second concave portion (43) is not less than the height of the convex portion (41).
3. A high temperature resistant drain valve according to claim 1, characterized in that: A first recessed portion (11) is provided at one end of the valve body (1), the first recessed portion (11) is conical, the convex portion (41) is conical, and the conical surfaces of the first recessed portion (11) and the convex portion (41) are matched.