High-pressure-resistant and crack-resistant triangular valve

Abstract

The utility model relates to the field of triangle valve, especially point to a kind of high-pressure-resistant cracking triangle valve, the utility model is set inside wall in water inlet axial extension integral reinforcing rib, equivalent to built-in'reinforcing framework' in the most weak part under stress.These reinforcing rib can effectively resist radial and axial stress generated when screwing, prevent stress concentration, fundamentally eliminate the risk of water inlet neck cracking.And reinforcing rib structure greatly enhances the ring stiffness and overall strength of water inlet position, so that it can withstand higher static water pressure and dynamic water hammer impact, suitable for high-rise building and other high water pressure environment.The utility model fundamentally strengthens water inlet structure, effectively disperses stress, thereby significantly improves pressure-bearing capacity and anti-cracking performance, prolongs the service life of triangle valve.

Description

Technical Field

[0001] This utility model relates to the field of angle valves, and in particular to a high-pressure-bearing and crack-resistant angle valve. Background Technology

[0002] Angle valve, also known as a three-way valve, is a key interface component connecting indoor water supply networks to sanitary ware (such as toilets, washbasins, and water heaters). Some angle valves have an external thread (male thread) inlet, which is used to directly screw into equipment with an internal thread interface (such as water heaters and certain types of toilet tanks) or pipe joints.

[0003] For this type of externally threaded triangular valve, the external thread needs to be machined at the inlet end of the valve body, inevitably thinning the wall thickness of this area. During tightening, torque and tension act directly on the relatively weak external thread, easily leading to thread stripping (thread damage) or cracking of the valve body wall at the thread root. Simultaneously, under internal water pressure, especially water hammer impact, the thin-walled external thread area is the weakest link in the entire valve body, with a pressure-bearing capacity far lower than other parts of the valve body. This makes the triangular valve susceptible to damage during installation and prone to fatigue cracking at the thread root during long-term use. Once cracked, it will cause water waste and property damage. Furthermore, as building height increases, the pressure of the water supply system also increases, placing higher demands on the pressure-bearing capacity of the triangular valve.

[0004] Therefore, there is an urgent need for a triangular valve that can fundamentally strengthen the inlet structure, effectively disperse stress, and thus significantly improve pressure resistance and crack resistance. Summary of the Invention

[0005] To address the shortcomings mentioned above in the background technology, this utility model provides a high-pressure-bearing and crack-resistant triangular valve.

[0006] The present invention adopts the following technical solution: A high-pressure-bearing and crack-resistant triangular valve is characterized by including a reinforcing rib disposed on the inner wall of the valve body inlet, wherein at least two reinforcing ribs are provided and integrally formed with the inner wall of the inlet, and the reinforcing ribs extend along the axial direction of the inlet.

[0007] As a further improvement, the reinforcing ribs are evenly distributed circumferentially along the inner wall of the inlet.

[0008] As a further improvement, the number of reinforcing ribs is 2 to 6.

[0009] As a further improvement, the cross-sectional shape of the reinforcing rib is arc-shaped.

[0010] As a further improvement, the reinforcing rib and the valve body are integrally cast from metal material.

[0011] As described above, this utility model has the following advantages compared to existing technologies: By providing an axially extending integrated reinforcing rib on the inner wall of the inlet, it is equivalent to building a "reinforcing skeleton" in the weakest part under stress. These reinforcing ribs can effectively resist the radial and axial stresses generated when the threads are tightened, preventing stress concentration and fundamentally eliminating the risk of cracking at the inlet neck. Furthermore, the reinforcing rib structure greatly enhances the ring stiffness and overall strength of the inlet area, enabling it to withstand higher static water pressure and dynamic water hammer impacts, making it suitable for high-pressure environments such as high-rise buildings. This utility model fundamentally strengthens the inlet structure, effectively dispersing stress, thereby significantly improving pressure resistance and crack resistance, and extending the service life of the angle valve. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a side view of the structure of this utility model.

[0014] Figure 3 This is a side view diagram of the structure when there are 6 reinforcing ribs.

[0015] Figure 4 A schematic diagram of the three-dimensional structure after reinforcing the inner wall of the outlet. Detailed Implementation

[0016] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0017] As attached Figure 1 and Figure 2 As shown, a high-pressure-bearing and crack-resistant triangular valve includes an integrally formed metal valve body 1, on which a water inlet 11 is provided for connecting to a water source. The core reinforcement structure is reflected in the reinforced design of the inner wall of the water inlet 11. On the inner wall of the inlet 11, at least two reinforcing ribs 2 are integrally formed. The reinforcing ribs 2 extend continuously along the axial direction (i.e. the direction of water flow) of the inner wall with the central axis of the inlet 11 as the center, extending from the port of the inlet 11 to the connection position with the internal flow channel of the valve body 1, forming a through support structure.

[0018] This axially extended design acts like a robust "skeleton" for the inlet 11 of the triangular valve. When water enters the inlet 11 with a large impact force, the reinforcing rib 2 directly resists the radial expansion force generated by the water flow impact. It disperses the localized concentrated stress to the entire inner wall of the inlet 11, avoiding material fatigue cracking caused by long-term stress. Traditional triangular valves, lacking such a structure, are prone to fatigue and cracking under long-term water flow impact, as the inner wall of the inlet 11 becomes like a repeatedly stretched rubber band. The reinforcing rib 2 of this utility model greatly improves the tensile strength of this part, enabling it to withstand greater tensile forces without tearing; the torsional strength is also significantly improved, maintaining stability even under the torsional force of water flow; and the burst resistance has achieved a qualitative leap, effectively preventing the valve body 1 from bursting due to excessive water pressure.

[0019] During installation, reinforcing rib 2 also plays a crucial role. Reinforcing rib 2 provides a more robust base support for the external threads, effectively distributing and offsetting the stress generated during thread tightening, as well as internal water pressure. This makes it less prone to cracking even when tightened during installation, significantly reducing the scrap rate during installation. Simultaneously, it prevents the threads from being "pulled out" or "crushed" under stress, resulting in a more secure connection that can better withstand water hammer impacts and long-term vibrations, thereby extending the service life of the angle valve.

[0020] Furthermore, by locally reinforcing key components, the wall thickness of non-critical areas can be appropriately reduced while maintaining or even increasing the overall strength. This achieves product lightweighting and saves on raw material costs. Moreover, because the inlet 11 is not easily deformed or cracked, it ensures that the wrapped PTFE tape or sealing gasket can operate in a stable environment, avoiding minor leaks caused by valve body deformation, making the seal more durable and reliable, and reducing after-sales maintenance hassles.

[0021] As attached Figure 2 and Figure 3 As shown, to further optimize the uniformity of stress distribution, the reinforcing ribs 2 are evenly distributed at equal angles along the circumference of the inner wall of the inlet 11. For example, when 3 ribs are set, the included angle between adjacent reinforcing ribs 2 is 120°; when 6 ribs are set, the included angle between adjacent ribs is 60°. This ensures that the stress strength of each area of ​​the inlet 11 remains consistent when subjected to water pressure, eliminating the risk of deformation due to excessive local stress. The number of reinforcing ribs 2 is preferably 2 to 6: 2 ribs can meet the basic strength requirements of conventional high water pressure scenarios, while 6 ribs are suitable for ultra-high pressure scenarios (such as commercial centralized water supply). This number range can improve the structural rigidity through the synergy of multiple ribs without causing excessive reduction in the cross-section of the water flow channel due to excessive rib density, thus ensuring the water flow velocity.

[0022] From a microstructural perspective, the cross-section of the reinforcing rib 2 adopts an arc-shaped design, with the convex direction of the arc facing the central axis of the inlet 11, and the radius of the arc matching the curvature of the inner wall of the inlet 11. Compared with right-angle or sharp-angle structures, this arc-shaped structure can reduce turbulence disturbance when water flows through, avoiding additional impact forces caused by water flow disturbance; on the other hand, the arc-shaped surface can reduce the stress concentration coefficient at the junction of the rib and the inner wall through the stress dispersion effect, significantly improving crack resistance.

[0023] In terms of material selection, the reinforcing rib 2 and the valve body 1 use the same metal material, specifically HPb59-1 brass, 304 stainless steel, or CuZn39Pb3 alloy copper, etc. HPb59-1 brass is suitable for general water quality. It has good mechanical properties, can withstand cold and hot pressure processing, is easy to weld and braze, and has good stability against general corrosion. Its tensile strength is ≥300MPa and elongation is ≥15%, meeting the mechanical performance requirements for long-term pressure bearing. It is widely used in the manufacture of angle valves in various ordinary water use scenarios. 304 stainless steel is suitable for high-chlorine water quality. In environments with high concentrations of chloride ions in some water, ordinary materials are easily corroded, but 304 stainless steel, with its excellent corrosion resistance, can maintain stable performance in such harsh environments, ensuring the normal use of the angle valve. CuZn39Pb3 alloy copper is suitable for high-temperature water applications. When exposed to high-temperature water, the performance of general materials will be affected, but CuZn39Pb3 alloy copper has good high-temperature resistance and can withstand the impact and corrosion of high-temperature water, ensuring the reliability of the angle valve in high-temperature environments.

[0024] In terms of molding process, the reinforcing rib 2 and the valve body 1 are integrally molded through precision casting. This integral casting process ensures that there are no splicing gaps between the reinforcing rib 2 and the valve body 1, avoiding stress weak points that may exist in welded or bonded structures. Welded or bonded parts are prone to stress concentration under stress due to the different bonding methods of materials, thereby reducing the overall structural strength. The integral molding process makes the reinforcing rib 2 and the valve body 1 a complete unit, with tighter connections between the parts and more uniform stress distribution, greatly improving the overall strength and reliability of the angle valve. Of course, depending on actual needs, the reinforcing rib 2 and the valve body 1 can also be integrally molded from the same plastic. Plastic materials can also play a unique role in some specific scenarios, such as when there are high weight requirements or special requirements for corrosion resistance.

[0025] As attached Figure 4As shown, in addition to addressing the backflow pressure faced by the outlet 12, the inner wall of the outlet 12 also adopts the same design logic, with at least two auxiliary reinforcing ribs 2 integrally formed and extending along its axial direction. The cross-sectional shape and distribution of the auxiliary reinforcing ribs 2 are consistent with those of the reinforcing ribs 2 at the inlet 11, and the number is adapted to the nominal diameter of the outlet 12 (e.g., 2-3 ribs for a DN15 outlet, 3-4 ribs for a DN20 outlet). Together with the reinforcing ribs 2 at the inlet 11, they form a "double-end reinforcement" structure. This "double-end reinforcement" effectively improves the overall pressure-bearing capacity of the angle valve and significantly extends its service life.

[0026] In summary, this invention, by incorporating axially extending integrated reinforcing ribs 2 on the inner wall of the inlet 11, essentially creates a "reinforcing skeleton" within the weakest point under stress. These reinforcing ribs 2 effectively resist radial and axial stresses generated during thread tightening, preventing stress concentration and fundamentally eliminating the risk of neck cracking at the inlet 11. Furthermore, the reinforcing rib 2 structure significantly enhances the ring stiffness and overall strength of the inlet 11, enabling it to withstand higher static water pressure and dynamic water hammer impacts, making it suitable for high-pressure environments such as high-rise buildings. This invention fundamentally strengthens the structure of the inlet 11, effectively dispersing stress, thereby significantly improving pressure resistance and crack resistance, and extending the service life of the angle valve.

[0027] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A high-pressure-resistant and crack-resistant triangular valve, characterized in that, It includes reinforcing ribs provided on the inner wall of the valve body inlet, with at least two reinforcing ribs integrally formed with the inner wall of the inlet, and the reinforcing ribs extending along the axial direction of the inlet.

2. The high-pressure-bearing and crack-resistant triangular valve as described in claim 1, characterized in that: The reinforcing ribs are evenly distributed circumferentially along the inner wall of the inlet.

3. The high-pressure-resistant and crack-resistant triangular valve as described in claim 2, characterized in that: The number of reinforcing ribs is 2 to 6.

4. The high-pressure-resistant and crack-resistant triangular valve as described in claim 1, characterized in that: The cross-sectional shape of the reinforcing rib is arc-shaped.

5. A high-pressure-resistant and crack-resistant triangular valve as described in claim 1, characterized in that: The reinforcing rib and the valve body are integrally cast from metal materials.

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