Noise-proof and vibration-proof remote control floating ball valve

Abstract

The invention relates to the technical field of valves, in particular to an anti-noise and anti-vibration remote control floating ball valve. Comprising a valve body, a valve cover is arranged on the upper side of the valve body and connected with a floating ball assembly, a shaft hole is formed in the center of an inner cavity of the valve cover, the upper end of a valve rod is inserted into the shaft hole, a spring is arranged at the top of the inner cavity of the valve cover and sleeved on the valve rod, and the valve rod is provided with external threads at the position of the spring. The lower end of the valve rod is inserted into a rib plate in the middle of a water inlet of a lower cavity of the valve body, and an upper membrane pad, a membrane, a lower membrane pad, a supporting sleeve, a valve clack and a sawtooth-shaped lower guide are sequentially installed on the valve rod between the nut and the round step from top to bottom. The sawtooth-shaped lower guide is in a bottle cap shape, a through hole is formed in the center of the sawtooth-shaped lower guide and arranged on the upper side of the round step of the valve rod in a sleeved mode, the outer diameter of the bottle cap is slightly smaller than the inner diameter of a valve runner, sawteeth are evenly distributed on the side edge of the bottle cap-shaped sawtooth-shaped lower guide, the height of the sawteeth is 8-15 mm, the distance between every two adjacent sawteeth is 2-4 mm, and the thickness of the sawteeth is 3-5 mm. The sawteeth are isosceles triangles, and the vertex angles of the sawteeth are 30-60 degrees.

Description

Technical Field

[0001] The invention relates to the technical field of valves, and in particular to a noise-proof and vibration-proof remote-controlled floating ball valve. Background Art

[0002] The "T" type remote control float currently on the market is relatively simple in structure, easy to operate and can be remotely controlled. The basic principle is to use the change in the buoyancy of the float in the liquid to drive the opening and closing of the valve, thereby maintaining the liquid level within the set range. For example, in the water tank level control in the city's tap water supply system, when the water level in the water tank drops, the float drops accordingly, and drives the valve to open through the transmission mechanism such as the connecting rod, allowing water to flow into the water tank; when the water level rises to the set height, the float floats up, driving the valve to close and stop water inflow.

[0003] In actual operation, due to frequent fluctuations in the liquid level, whether it is the uneven water use in industrial production or the intermittent water use in residents' daily life, the float will constantly float up and down. This not only makes the transmission parts connected to it bear continuous alternating stress, which is easy to cause problems such as wear and fatigue, but also the frequent opening and closing of the valve poses a great challenge to the sealing performance of the valve itself, the internal flow channel structure and the stability of the control system. At the same time, the valve is opened and closed many times. When the valve is opened at a small degree, the water flow changes rapidly, causing turbulence, eddy currents and other pressure fluctuations. The pressure wave propagates in the fluid in the form of waves. When the wave action acts on the pipe wall or valve parts, it will cause vibration, and then generate noise, which has an adverse effect on the surrounding working environment and living environment.

[0004] The existing improvement is based on the traditional float valve, and the structure of the float is optimized. A special hollow double-layer float structure is adopted to increase the stability of the float to reduce its floating sensitivity. However, due to the relatively complex double-layer float structure, the manufacturing process difficulty and cost have increased, and during long-term use, the air layer may leak and other problems, affecting the stability of its performance.

[0005] In actual application scenarios, such as water storage containers such as water tanks and pools, the process of water use or water inflow will cause the liquid level to change continuously. Even if the liquid level changes slightly, the float will float up and down accordingly. Due to the frequent floating of the float, the valve opens and closes frequently, causing loud noise, especially in quiet periods such as at night. The interference of noise is more obvious, which may affect the normal rest and quality of life of residents. Summary of the invention

[0006] The main purpose of the present invention is to provide a noise-proof and vibration-proof remote control float valve so as to effectively solve the problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a noise-proof and vibration-proof remote control float valve, comprising a valve body, a valve cover is provided on the upper side of the valve body, the valve cover is connected to the float assembly, an axial hole is provided at the center of the inner cavity of the valve cover, the upper end of the valve stem is inserted in the axial hole, a spring is provided at the top of the inner cavity of the valve cover and sleeved on the valve stem, the valve stem is provided with an external thread at the spring position, a nut is screwed on the external thread, a circular step is provided at the lower part of the valve stem, the lower end of the valve stem is inserted on the rib plate in the middle of the water inlet of the lower cavity of the valve body, an upper membrane pad, a diaphragm, a lower membrane pad, a support sleeve, a valve disc, and a serrated lower guide are sequentially installed on the valve stem between the nut and the circular step from top to bottom, wherein a sealing ring is provided between the circular step and the serrated lower guide, and a bypass assembly is also provided on the valve cover to connect the upper cavity of the valve body below the valve cover with the lower cavity of the valve body below the valve disc;

[0008] Preferably, the sawtooth lower guide is in the shape of a bottle cap, with a through hole in the center which is sleeved on the upper side of the circular step of the valve stem, and the outer diameter of the bottle cap is slightly smaller than the inner diameter of the valve flow channel so that it can move up and down smoothly in the flow channel.

[0009] Preferably, the bottle cap-shaped serrated lower guide side has uniformly distributed serrations, the height of the serrations is 8-15 mm, the spacing between adjacent serrations is 2-4 mm, and the thickness is 3-5 mm.

[0010] Preferably, the sawtooth is in the shape of an isosceles triangle with a vertex angle of 30-60 degrees. Such a design can form a stable columnar flow state when the medium flows through.

[0011] Beneficial effects of the present invention:

[0012] 1. Excellent noise and vibration suppression

[0013] The present invention fundamentally changes the flow characteristics of the medium in the valve through the unique sawtooth lower guide design. When the valve is running at a small opening, the sawtooth is used to accurately control the flow state of the medium, effectively avoiding the generation of turbulence and eddy currents, thereby greatly reducing the noise and vibration caused by unstable fluid flow. According to actual tests, compared with the traditional "T" type remote control float valve, the noise level can be reduced by 20-30 decibels and the vibration amplitude can be reduced by more than 80%. This significant noise reduction and vibration reduction effect not only creates a quiet and comfortable working environment for operators, reduces occupational health risks such as hearing loss caused by long-term exposure to a noisy environment, but also avoids vibration damage to the valve itself and the connected pipelines and equipment, prolongs the service life of the entire pipeline system, and reduces maintenance costs.

[0014] 2. Accurate and stable flow regulation

[0015] Since the sawtooth guide can guide the medium to form a regular columnar flow state when the valve is opened slightly, the flow control is more accurate. At the same time, when the valve is opened widely, the sawtooth guide can quickly leave the flow channel without affecting the rapid increase of the overall flow, ensuring the efficient operation of the system under high flow demand conditions.

[0016] 3. Good versatility and maintenance convenience

[0017] The detachable design of the sawtooth lower guide is a highlight of the present invention. This design enables the valve to adapt to different working conditions. By simply replacing the sawtooth lower guide with different specifications (such as different sawtooth heights, spacings, etc.), the requirements of different medium characteristics (viscosity, density, corrosiveness, etc.) and flow ranges can be met. In addition, when the sawtooth lower guide is worn or damaged due to long-term use, it can be quickly and conveniently disassembled and replaced, which improves the operating reliability and availability of the system, so that the valve of the present invention can be widely used in various industrial and civil water supply and drainage and fluid control fields, and has strong versatility and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 It is a schematic diagram of the structure of the present invention.

[0019] Attached Figure 2 It is a partial enlarged view of the present invention.

[0020] Attached Figure 3 It is a schematic diagram of the three-dimensional structure of the appearance of the present invention.

[0021] Attached Figure 1 —3, valve body 1, serrated lower guide 2, valve disc 3, diaphragm 4, valve stem 5, valve body upper cavity 6, valve body lower cavity 7, water tank 8, float assembly 9, sealing ring 10, circular step 11, valve cover 12, spring 13, nut 14, upper diaphragm pad 15, lower diaphragm pad 16, support sleeve 17, bypass assembly 18. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Attached Figure 1As shown in FIG. 3 , a noise-proof and vibration-proof remote control float valve comprises a valve body 1, a valve cover 12 is arranged on the upper side of the valve body 1, the valve cover 12 is connected to the float assembly 9, an axial hole is arranged at the center of the inner cavity of the valve cover 12, the upper end of the valve stem 5 is inserted into the axial hole, a spring 13 is arranged at the top of the inner cavity of the valve cover 12 and is sleeved on the valve stem 5, the valve stem 5 is arranged with an external thread at the spring position, a nut 14 is screwed on the external thread, a circular step 11 is arranged at the lower part of the valve stem 5, and the lower end of the valve stem 5 is provided with a circular step 11. Inserted on the rib plate in the middle of the water inlet of the lower cavity 7 of the valve body, on the valve stem 5 between the nut 13 and the circular step 11, an upper membrane pad 15, a diaphragm 4, a lower membrane pad 16, a support sleeve 17, a valve disc 3, and a sawtooth lower guide 2 are installed in sequence from top to bottom, wherein a sealing ring 10 is arranged between the circular step 11 and the sawtooth lower guide 2, and a bypass component 18 is also arranged on the valve cover 12 to connect the upper cavity 6 of the valve body below the valve cover 12 with the lower cavity 7 of the valve body below the valve disc 3;

[0024] The sawtooth lower guide 2 is in the shape of a bottle cap, with a through hole in the center, which is sleeved on the upper side of the circular step of the valve stem 5. The outer diameter of the bottle cap is slightly smaller than the inner diameter of the valve flow channel, so that it can move up and down smoothly in the flow channel.

[0025] The bottle cap-shaped sawtooth lower guide 2 has saw teeth evenly distributed on the side, the height of the saw teeth is 10 mm, the spacing between adjacent saw teeth is 3 mm, and the thickness is 3 mm.

[0026] The sawtooth is in the shape of an isosceles triangle with a vertex angle of 30 degrees. Such a design enables the medium to form a stable columnar flow state when flowing through.

[0027] Working process:

[0028] 1. Initial state: Assuming that the liquid level in the water tank 8 or the pool is at a high position, the float in the float assembly 9 floats up, the valve disc 3 is in the closed position, the sawtooth lower guide 2 is also at the lowest point, and the valve is in the closed state, preventing the medium from flowing in.

[0029] 2. Liquid level drops, small opening: As the liquid level in the water tank 8 drops, the float drops accordingly, and the pressure in the lower chamber 7 of the valve body pushes the valve disc 3 up, pushing the sawtooth lower guide 2 up. When the valve starts to open with a small opening, the medium enters the flow channel from the inlet. Due to the existence of the sawtooth lower guide, the medium can only flow out through the sawtooth gap, forming a stable columnar flow out of the valve. At this time, the valve runs smoothly without noise and vibration.

[0030] 3. Liquid level continues to drop, and the valve opens at a wide opening: The liquid level drops further, the float 9 continues to drop, the valve stem 5 continues to move upward, and the valve opening gradually increases. When the valve opens at a wide opening, the valve stem 5 lifts the sawtooth lower guide 2 to the highest position, making it completely out of the flow channel. The medium can freely pass through the entire valve flow channel, meeting the large flow rate medium delivery requirements, and the overall flow change of the valve is not affected by the sawtooth lower guide, and it still maintains a stable operating state.

[0031] 4. Liquid level rises, valve closes: When the liquid level in the water tank 8 begins to rise, the float rises, the pressure in the upper chamber 6 of the valve body increases, pushing the diaphragm 4 to drive the valve stem 5 downward, and the valve gradually closes. During the closing process, as the valve opening decreases, the valve stem 5 drives the sawtooth lower guide 2 into the flow channel again, repeating the flow control process when the valve is opened with a small opening, until the valve is completely closed. The generation of noise and vibration can be effectively avoided during the whole process.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A noise and vibration proof remote control float valve, characterized in that: It includes a valve body, a valve cover is provided on the upper side of the valve body, the valve cover is connected to a float assembly, an axial hole is provided in the center of an inner cavity of the valve cover, the upper end of a valve stem is inserted in the axial hole, a spring is provided on the top of the inner cavity of the valve cover and is sleeved on the valve stem, the valve stem is provided with an external thread at the spring position, a nut is screwed on the external thread, a circular step is provided at the lower part of the valve stem, the lower end of the valve stem is inserted on a rib plate in the middle of a water inlet of a lower cavity of the valve body, an upper membrane pad, a diaphragm, a lower membrane pad, a support sleeve, a valve disc, and a serrated lower guide are sequentially installed on the valve stem between the nut and the circular step from top to bottom, wherein a sealing ring is provided between the circular step and the serrated lower guide, and a bypass assembly is also provided on the valve cover to connect the upper cavity of the valve body under the valve cover with the lower cavity of the valve body under the valve disc.

2. A noise and vibration proof remote control float valve according to claim 1, characterized in that: The sawtooth lower guide is in the shape of a bottle cap, with a through hole in the center and sleeved on the upper side of the circular step of the valve stem. The outer diameter of the bottle cap is slightly smaller than the inner diameter of the valve flow channel so that it can move up and down smoothly in the flow channel.

3. A noise and vibration proof remote control float valve according to claim 2, characterized in that: The bottle cap-shaped sawtooth lower guide side is evenly distributed with saw teeth, the height of the saw teeth is 8-15 mm, the spacing between adjacent saw teeth is 2-4 mm, and the thickness is 3-5 mm.

4. A noise and vibration proof remote control float valve according to claim 3, characterized in that: The sawtooth is in the shape of an isosceles triangle, and its vertex angle is 30-60 degrees.

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