Wear-resistant dish-shaped rotary valve

Abstract

The utility model discloses a wear-resistant dish-shaped rotary valve, which relates to the field of block valves and comprises a dish-shaped valve, a servo motor and a buffer plate which are fixedly mounted on a rotary rod. The buffer sheets are arranged between the butterfly valve and the buffer sheets, one sides of the three buffer sheets are fixedly installed on the same axis, an included angle is formed between every two buffer sheets, the buffer plates are fixed to the rotating rod, and when fluid impacts, the buffer plates are firstly in contact with the buffer plates to conduct primary buffer, disperse and bear part of impact force. The included angle structure enables impact force to be decomposed and weakened in multiple directions, concentration is avoided, impact on the sealing face of the butterfly valve is reduced, damage is reduced, the service life of the sealing face and the valve shaft is prolonged, and the overall service life of the butterfly valve is prolonged. The multi-stage buffer structure can effectively cope with fluid impact of different strengths, gradually reduce the impact force, and better protect the butterfly valve.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cut -off valve field, concretely is a kind of antiwear disc rotary valve. BACKGROUND

[0002] The butterfly valve is also called flap valve, and is a simple structure regulating valve, which can also be used for on-off control of low-pressure pipeline medium. The butterfly valve is a valve in which the closing element (valve disc or valve plate) is a disc that rotates around the valve shaft to achieve opening and closing. The butterfly valve mainly serves as a cut-off and throttling function in the pipeline. The opening and closing element of the butterfly valve is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve opening, closing or regulation.

[0003] In the process of opening and closing or regulating the butterfly valve on the market, the sealing performance of the valve plate and the inner side of the flow passage is not high, the impact force of the fluid on the inner side of the flow passage is large, the sealing surface of the valve is easily damaged and fails, the service life of the valve shaft is shortened, and the service life of the butterfly valve as a whole is also shortened.

[0004] A buffer groove is formed on the front surface of the butterfly plate. When the water flow impacts the butterfly plate, the groove can disperse the impact force of the water flow, reducing the pressure of the water flow on the surface of the butterfly plate. This single buffering method has relatively limited buffering capacity when facing large or complex fluid impact forces. For example, when the water flow is fast and the flow is large, the buffer groove may not be able to fully disperse the water flow pressure, and some areas may still bear a large impact force. The dispersion direction is relatively fixed and limited to a plane, and the buffering effect is not good. SUMMARY

[0005] The utility model aims at providing an antiwear disc rotary valve to solve the problems raised in the background.

[0006] To solve the above technical problems, the utility model provides an antiwear disc rotary valve, which comprises a butterfly valve, a servo motor, a buffer plate and a rotating rod. The buffer plate is arranged between the butterfly valve and the buffer plate, and the number of the buffer plates is three. One side of each of the three buffer plates is fixedly installed on an axis, and an angle is formed between every two buffer plates. The buffer plates on the two sides are fixedly connected with the butterfly valve and the buffer plate, respectively, and a plurality of buffer plates form a buffer member. A first reset plate is connected to one side of the buffer plate, and a second reset plate is fixedly connected to one side of the first reset plate and fixedly installed on the adjacent buffer plate on the other side. An angle is formed at the connection between the first reset plate and the second reset plate, and the first reset plate and the second reset plate form a reset member.

[0007] Further, the angle between the first reset plate and the second reset plate is 45 degrees.

[0008] Further, the included angle between the two buffering sheets is 10 degrees, and the cross section of the buffering piece is W-shaped.

[0009] Further, the buffering sheet, the first reset sheet and the second reset sheet are coated with a waterproof coating.

[0010] Further, the outer wall of the butterfly valve is integrally formed with an anti-wear ring, the top and bottom of the buffering sheet and the first reset sheet are covered with a waterproof film, and a flexible impact-resistant film layer is fixedly installed between the butterfly valve and the buffering sheet.

[0011] Further, the butterfly valve is fixedly installed on the circumferential outer wall of the rotating rod, and the top of the rotating rod is fixedly installed with a servo motor.

[0012] Further, the outside of the butterfly valve is provided with a pipeline, the servo motor is arranged at the top of the pipeline, the outside of the servo motor is provided with a protective cover, and the protective cover is fixedly installed on the butterfly valve.

[0013] Further, the buffering sheet, the buffering sheet, the first reset sheet and the second reset sheet are made of spring steel.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. In the utility model, the buffering sheet is fixed on the rotating rod, and when the fluid impacts, it first contacts the buffering sheet for primary buffering, disperses and bears part of the impact force. The buffering piece composed of the buffering sheet further buffers, and the included angle structure makes the impact force decompose in multiple directions, weakens the impact force, avoids concentration, reduces the impact on the sealing surface of the butterfly valve, reduces the damage, prolongs the service life of the sealing surface and the valve shaft, and prolongs the overall service life of the butterfly valve. This multi-stage buffering structure can effectively cope with fluid impacts of different intensities, gradually reduce the impact force, and better protect the butterfly valve.

[0016] 2. In the utility model, when the first reset sheet and the second reset sheet are at an angle of 45 degrees, the angle is beneficial to the decomposition and conduction of the reset force after the buffering sheet is displaced by the fluid impact. According to the principle of mechanics, this angle can decompose the reset force into horizontal components, so that the reset force acts uniformly on the buffering sheet and helps it reset smoothly to the initial state. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an internal structure diagram of the utility model;

[0018] Figure 2 It is a connection structure diagram of the rotating rod and the servo motor in the utility model;

[0019] Figure 3 It is a connection structure diagram of the butterfly valve and the anti-wear ring in the utility model;

[0020] Figure 4 It is the connection structure schematic view of the first reset plate and the second reset plate in the utility model.

[0021] In the figure: 1, butterfly valve; 2, buffer plate; 3, buffer sheet; 4, first reset plate; 5, second reset plate; 6, waterproof film; 7, anti-abrasion ring; 8, rotating rod; 9, servo motor; 10, protective cover; 11, pipeline. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0024] Please refer to Figures 1-4 The utility model discloses an anti-abrasion butterfly rotary valve, including butterfly valve 1, servo motor 9, buffer plate 2, fixedly installed on rotating rod 8, buffer sheet 3, set up between butterfly valve 1 and buffer sheet 3, its number sets up three, and one side of the three buffer sheet 3 is fixedly installed on an axis, and the angle is formed before every two buffer sheet 3, and the buffer sheet 3 of distribution in the most two sides is fixedly connected with butterfly valve 1, buffer sheet 3 respectively, and multiple buffer sheet 3 form a buffer piece, first reset plate 4, connect in one side of buffer sheet 3, second reset plate 5, fixedly connected in one side of first reset plate 4, and the other side is fixedly installed on adjacent buffer sheet 3, and the angle is formed in the connecting place of first reset plate 4 and second reset plate 5, and first reset plate 4 and second reset plate 5 form a reset piece.

[0025] Buffer plate 2 is fixed on rotating rod 8, when fluid impact, first contact buffer plate 2, and buffer plate 2 can preliminarily disperse and bear part of impact force, play the role of primary buffering.And buffer piece formed by buffer sheet 3 further disperses and buffers the impact force of fluid.

[0026] The multiple buffering sheets 3 form an included angle, which makes the fluid impact force be decomposed and weakened in different directions when the fluid impact force acts on the buffering sheets 3, avoids the concentration of the impact force in a certain point or area, effectively reduces the direct impact of the fluid on the sealing surface of the butterfly valve 1, greatly reduces the damage caused by the impact, prolongs the service life of the valve sealing surface and the valve shaft, and further prolongs the service life of the whole butterfly valve, and the buffering sheet 2 serves as a primary buffer to preliminarily disperse and bear part of the impact force, and then the buffering member composed of the multiple buffering sheets 3 further buffers, so that the multi-stage buffering structure can more effectively cope with fluid impact of different intensities and gradually reduce the impact force, and better protect the butterfly valve 1.

[0027] The reset member composed of the first reset plate 4 and the second reset plate 5 plays a key role in stabilization and resetting. When the buffering sheet 3 is deformed or displaced due to fluid impact, the reset member can generate a reverse force by using its structural characteristics and connection relationship, so as to promote the buffering sheet 3 to return to the original position or remain in a relatively stable state. For example, during the intermittent period of fluid impact or when the impact force is weakened, the included angle between the first reset plate 4 and the second reset plate 5 and the connection mode of the first reset plate 4 and the second reset plate 5 with the buffering sheet 3 can make the buffering sheet 3 orderly return to the initial state under the action of elastic potential energy, so as to cope with the next fluid impact and ensure the continuous effectiveness of the buffering structure and the normal operation of the valve.

[0028] Meanwhile, the stable resetting function also helps to maintain the sealing performance of the valve, because the stable state of the buffering sheet 3 can indirectly ensure the fitting accuracy and stability of the sealing surface of the butterfly valve 1.

[0029] Referring to Figure 3 , the angle between the first reset plate 4 and the second reset plate 5 is 45 degrees.

[0030] When the angle between the first reset plate 4 and the second reset plate 5 is 45 degrees, the angle can make the reset force be well decomposed and conducted after the buffering sheet 3 is displaced due to fluid impact. From the perspective of mechanics, the 45-degree angle can decompose the reset force into a horizontal component, and during the resetting process, the decomposition mode makes the reset force act more uniformly on the buffering sheet 3, so that the buffering sheet 3 can more smoothly return to the initial position.

[0031] Referring to Figure 3 , the included angle between the two buffering sheets 3 is 10 degrees, and the cross section of the buffering member is W-shaped.

[0032] The W-shaped cross section of the buffer can keep the valve stable when it is impacted by fluid. Because the impact force is evenly dispersed and buffered, the various components of the valve will not be subjected to excessive force in a localized area, and thus will not be subjected to dramatic deformation or displacement.

[0033] The buffer plate 3 and the W-shaped buffer can reduce the vibration and displacement of the sealing surface caused by impact, ensure the close contact between the sealing surfaces, effectively prevent fluid leakage, improve the sealing performance of the valve, and prolong the service life of the valve.

[0034] Referring to Figures 2-4 The buffer plate 2, the first reset plate 4, and the second reset plate 5 are all coated with a waterproof coating.

[0035] The buffer plate 2, the first reset plate 4, and the second reset plate 5 will frequently come into contact with fluid during operation. If there is no waterproof coating, moisture in the fluid can penetrate into the material of these components. For metal components, moisture can cause oxidation, leading to rust. For example, iron components in a humid environment will chemically react with oxygen and water to form rust, the main component of which is iron trioxide. Rust is loose and porous, which can make the surface of the component rough and uneven.

[0036] The waterproof coating can effectively prevent the contact between moisture and the material of the component, preventing the oxidation and rusting process. For some composite materials or coated components, the waterproof coating can also prevent moisture from penetrating into the interior, avoiding damage such as expansion, deformation, or delamination of the material, ensuring the structural integrity of the component, and thus maintaining the normal operation of the valve.

[0037] Referring to Figures 2-3 The butterfly valve 1 has an abrasion-resistant ring 7 integrally formed on the outer arc wall, the top and bottom of the buffer plate 3 and the first reset plate 4 are covered with a waterproof film 6, and the butterfly valve 1 and the buffer plate 2 are fixedly installed with a flexible impact-resistant film layer.

[0038] Since the abrasion-resistant ring 7 is integrally formed on the outer arc wall of the butterfly valve 1, it has a compact structure and can effectively resist the scratching of solid particles and the erosion of fluid, greatly reducing the wear of the butterfly valve 1 itself and prolonging the service life of the valve.

[0039] This film layer can enhance the connection stability between adjacent buffer plates 2. When the valve is opened, it can prevent the buffer plates 2 from loosening or displacing under the long-term impact of fluid, ensuring the integrity and effectiveness of the buffer structure, thereby improving the overall impact resistance of the valve and prolonging the service life of the valve.

[0040] Referring to Figure 1The butterfly valve 1 is fixedly installed on the circumferential outer wall of the rotating rod 8, and the top of the rotating rod 8 is fixedly installed with the servo motor 9.

[0041] Since the butterfly valve 1 is fixed on the rotating rod 8, and the servo motor 9 controls the rotation of the rotating rod 8, the control of the valve opening is more accurate. The servo motor 9 can accurately control the rotation angle of the rotating rod 8 according to the preset signal.

[0042] Referring to Figure 1 The butterfly valve 1 is externally provided with a pipeline 11, the servo motor 9 is arranged at the top of the pipeline 11, and the servo motor 9 is externally provided with a protective cover 10 which is fixedly installed on the butterfly valve 1.

[0043] The protective cover 10 can effectively prevent moisture and dust from entering the inside of the servo motor 9. In actual industrial environments or fluid conveying systems, there may be a lot of dust around the pipeline 11, or there may be water mist in some humid environments. If these dust and moisture enter the servo motor 9, it may cause short circuit, corrosion of electrical elements inside the motor or wear of mechanical parts. For example, dust may accumulate on the heat sink of the motor, affecting heat dissipation, and moisture may cause the motor winding to be damp, reducing insulation performance.

[0044] Referring to Figures 1-4 The materials of the buffer plate 2, the buffer sheet 3, the first reset plate 4 and the second reset plate 5 are all spring steel.

[0045] Spring steel has a high elastic limit, which makes the buffer plate 2, the buffer sheet 3, the first reset plate 4 and the second reset plate 5 be able to produce a large elastic deformation when subjected to fluid impact. For example, when the fluid exerts an impact force on the buffer plate 2, the buffer plate 2 made of spring steel can be compressed or bent like a spring, effectively absorbing and buffering the impact energy of the fluid.

[0046] For the buffer sheet 3, it can disperse the impact force among multiple sheets through elastic deformation, reducing the instantaneous impact on the valve. And the first reset plate 4 and the second reset plate 5 can also quickly recover to their original positions by virtue of the elasticity of spring steel after deformation, ensuring the normal operation of the valve.

Claims

1. A wear-resistant disc-shaped rotary valve, comprising a disc valve (1) and a servo motor (9), characterized in that: The buffer plate (2) is fixedly installed on the rotating rod (8); Three buffer plates (3) are set between the butterfly valve (1) and the buffer plate (3). One side of each of the three buffer plates (3) is fixedly installed on an axis, and an angle is formed between each pair of buffer plates (3). The buffer plates (3) distributed on the two outermost sides are fixedly connected to the butterfly valve (1) and the buffer plate (3) respectively. Multiple buffer plates (3) form a buffer component. The first reset plate (4) is connected to one side of the buffer plate (3); The second reset plate (5) is fixedly connected to one side of the first reset plate (4), and the other side is fixedly installed on the adjacent buffer plate (3). The connection between the first reset plate (4) and the second reset plate (5) forms an angle; the first reset plate (4) and the second reset plate (5) form a reset component.

2. The wear-resistant disc-shaped rotary valve as described in claim 1, characterized in that: The angle between the first reset plate (4) and the second reset plate (5) is 45 degrees.

3. The wear-resistant disc-shaped rotary valve as described in claim 2, characterized in that: The included angle between the two buffer plates (3) is 10 degrees, and the cross-section of the buffer is W-shaped.

4. The wear-resistant disc-shaped rotary valve as described in claim 3, characterized in that: The buffer plate (2), the first reset plate (4), and the second reset plate (5) are all coated with a waterproof coating.

5. The wear-resistant disc-shaped rotary valve as described in claim 4, characterized in that: The butterfly valve (1) has an integrally formed anti-wear ring (7) on its arc-shaped outer wall. The top and bottom of the buffer plate (3) and the first reset plate (4) are covered with a waterproof film (6). A tough anti-impact membrane layer is fixedly installed between the butterfly valve (1) and the buffer plate (2).

6. The wear-resistant disc-shaped rotary valve as described in claim 5, characterized in that: The butterfly valve (1) is fixedly installed on the outer circumference of the rotating rod (8), and a servo motor (9) is fixedly installed on the top of the rotating rod (8).

7. The wear-resistant disc-shaped rotary valve as described in claim 6, characterized in that: The butterfly valve (1) is provided with a pipe (11) on its exterior. The servo motor (9) is located on the top of the pipe (11). The servo motor (9) is provided with a protective cover (10) on its exterior. The protective cover (10) is fixedly installed on the butterfly valve (1).

8. The wear-resistant disc-shaped rotary valve as described in claim 7, characterized in that: The buffer plate (2), buffer sheet (3), first reset plate (4), and second reset plate (5) are all made of spring steel.

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