Hemispherical self-adaptive valve core ball valve casting

Abstract

The utility model discloses a hemispherical ball valve casting with a self-adaptive valve core, and relates to the technical field of ball valves. The hemispherical self-adaptive valve element ball valve casting comprises a self-adaptive ball valve body, an electric control box, a hemispherical valve element and a valve rod rotating structure, the electric control box is installed at the top of the self-adaptive ball valve body, the hemispherical valve element is arranged in the self-adaptive ball valve body, and the valve rod rotating structure is located on the self-adaptive ball valve body. The valve rod rotating structure comprises a fixed seat, a lower rotating rod, two bolts and a sealing cover, the fixed seat is fixedly connected to the bottom of the self-adaptive ball valve body, and two threaded holes and an annular sealing groove are formed in the bottom of the fixed seat. Therefore, friction force during rotation is reduced, the friction coefficient between the valve element and the valve body is effectively reduced, energy loss caused by friction is reduced, and the hemispherical valve element is smoother in the rotation process.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve technical field, especially relates to half -spherical self -adaptation valve element ball valve casting. BACKGROUND

[0002] Half -spherical self -adaptation valve element ball valve has simple structure, convenient operation, good sealing, strong corrosion resistance and the like, and this kind of valve is widely used in petroleum, chemical industry, metallurgy, electric power, water treatment and the like, especially in the occasion needing to control high temperature, high pressure, strong corrosive medium.

[0003] The lower valve stem of the prior art half -spherical self -adaptation valve element ball valve lacks effective lubrication, and the friction between the valve element and the valve body gradually increases during long -term operation, resulting in rising rotating resistance and large operating torque, which not only makes the valve opening and closing difficult, but also easily causes the valve stem to be twisted and deformed or even broken, therefore, we propose a half -spherical self -adaptation valve element ball valve casting. TECHNICAL SOLUTION

[0004] The utility model discloses a half -spherical self -adaptation valve element ball valve casting, which can solve the problem of the prior art that the lower valve stem of the half -spherical self -adaptation valve element ball valve lacks effective lubrication, and the friction between the valve element and the valve body gradually increases during long -term operation, resulting in rising rotating resistance and large operating torque, which not only makes the valve opening and closing difficult, but also easily causes the valve stem to be twisted and deformed or even broken.

[0005] To achieve the above object, the utility model provides the following technical scheme: a half -spherical self -adaptation valve element ball valve casting, comprising:

[0006] The adaptive ball valve body, the electric control box and the half -spherical valve element, the electric control box is installed at the top of the adaptive ball valve body, and the half -spherical valve element is arranged in the inside of the adaptive ball valve body;

[0007] The valve stem rotating structure is located on the adaptive ball valve body.

[0008] The valve stem rotating structure comprises a fixed seat, a lower rotating rod, two bolts and a sealing cover, the fixed seat is fixedly connected to the bottom of the adaptive ball valve body, the bottom of the fixed seat is provided with two threaded holes and an annular sealing groove respectively, the two bolts are threadedly connected with the inside of the corresponding threaded holes, the sealing cover is installed at the bottom of the fixed seat through the two bolts, the lower rotating rod is rotatably connected to the inside of the fixed seat, the bottom of the lower rotating rod is fixedly connected with a rotating column, the top of the sealing cover is provided with a mounting groove, and the rotating column is rotatably connected to the inside of the mounting groove.

[0009] Preferably, the valve stem rotation structure further includes a bearing, a sealing ring, and a sealing gasket. The sealing ring is fixedly connected to the top of the sealing cover and is slidably connected to the inside of the annular sealing groove. The bearing is installed inside the mounting groove, the rotating column is installed on the inner ring of the bearing, and the sealing gasket is sleeved on the outer surface of the rotating column, with the sealing gasket located above the bearing.

[0010] Preferably, an upper rotating rod is fixedly connected to the bottom of the electric control box.

[0011] Preferably, the top end of the hemispherical valve core is mounted on the bottom end of the upper rotating rod, and the bottom end of the hemispherical valve core is mounted on the top end of the lower rotating rod.

[0012] Preferably, flanges are fixedly connected to both sides of the adaptive ball valve body.

[0013] Preferably, the sealing gasket is made of rubber.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This hemispherical adaptive valve core ball valve casting, by installing a bearing between the rotating column and the mounting groove, with the rotating column installed in the inner ring of the bearing, reduces the frictional force during rotation, thereby effectively reducing the friction coefficient between the valve core and the valve body, reducing energy loss caused by friction, and making the hemispherical valve core rotate more smoothly. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the sealing cap structure of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the adaptive ball valve body of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixing seat of this utility model;

[0021] Figure 5 This is a schematic diagram of the sealing cap structure of this utility model.

[0022] Reference numerals: 1. Adaptive ball valve body; 2. Electric control box; 3. Fixed seat; 4. Sealing cover; 5. Upper rotating rod; 6. Hemispherical valve core; 7. Lower rotating rod; 8. Sealing ring; 9. Threaded hole; 10. Rotating column; 11. Sealing gasket; 12. Bolt; 13. Annular sealing groove; 14. Bearing; 15. Mounting groove. DETAILED DESCRIPTION

[0023] The detailed description of the utility model will be described in detail, the preferred embodiment of the utility model is shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0024] In the description of the utility model, it is understood that the orientation description, such as up, down, front, back, left, right and other indications of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as the limitation of the utility model.

[0025] In the description of the utility model, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number.If there is a description to the first, the second is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0026] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0027] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: hemispherical self-adapting valve core ball valve casting, comprising:

[0028] Self-adapting ball valve body 1, electric control box 2 and hemispherical valve core 6, electric control box 2 is installed at the top of self-adapting ball valve body 1, hemispherical valve core 6 is arranged in the inside of self-adapting ball valve body 1;

[0029] Valve stem rotating structure, valve stem rotating structure is located on self-adapting ball valve body 1;

[0030] The valve rod rotating structure comprises a fixed seat 3, a lower rotating rod 7, two bolts 12 and a sealing cover 4, the fixed seat 3 is fixedly connected to the bottom of the adaptive ball valve body 1, two threaded holes 9 and an annular sealing groove 13 are respectively formed in the bottom of the fixed seat 3, the two bolts 12 are in threaded connection with the interiors of the corresponding threaded holes 9, the sealing cover 4 is installed at the bottom of the fixed seat 3 through the two bolts 12, the lower rotating rod 7 is rotatably connected to the interior of the fixed seat 3, a rotating column 10 is fixedly connected to the bottom of the lower rotating rod 7, an installation groove 15 is formed in the top of the sealing cover 4, and the rotating column 10 is rotatably connected to the interior of the installation groove 15.

[0031] The valve rod rotating structure further comprises a bearing 14, a sealing ring 8 and a sealing gasket 11, the sealing ring 8 is fixedly connected to the top of the sealing cover 4, the sealing ring 8 is in sliding connection with the interior of the annular sealing groove 13, the bearing 14 is installed in the interior of the installation groove 15, the rotating column 10 is installed on the inner ring of the bearing 14, the sealing gasket 11 is sleeved on the outer surface of the rotating column 10, the sealing gasket 11 is located above the bearing 14, and the sealing gasket 11 is made of rubber.

[0032] The bottom of the electric control box 2 is fixedly connected with an upper rotating rod 5, the top end of the half-ball spool 6 is installed at the bottom end of the upper rotating rod 5, the bottom end of the half-ball spool 6 is installed at the top end of the lower rotating rod 7, and the two sides of the adaptive ball valve body 1 are fixedly connected with flange pipes.

[0033] Further, when the device is used, when the opening and closing of the ball valve need to be controlled, the electric control box 2 is started, the upper rotating rod 5 fixedly connected to the bottom of the electric control box 2 rotates, since the top end of the half-ball spool 6 is installed at the bottom end of the upper rotating rod, the upper rotating rod 5 drives the half-ball spool 6 to rotate, at the same time, the bottom end of the half-ball spool 6 is installed at the top end of the lower rotating rod 7, the lower rotating rod 7 is rotatably connected to the interior of the fixed seat 3, so that the lower rotating rod 7 rotates synchronously in the fixed seat 3, the rotating column 10 fixedly connected to the bottom of the lower rotating rod 7 rotates in the installation groove 15 formed in the top of the sealing cover 4, the bearing 14 is installed in the installation groove 15, the rotating column 10 is installed on the inner ring of the bearing 14, which makes the rotating column 10 rotate more smoothly, reduces the frictional resistance, and further ensures the stable rotation of the lower rotating rod 7 and the half-ball spool 6 connected thereto.

[0034] The sealing ring 8 at the top of the sealing cover 4 is in sliding connection with the annular sealing groove 13 at the bottom of the fixed seat, forming the first sealing defense line, preventing external impurities and fluids from entering from the connection between the fixed seat 3 and the sealing cover 4, at the same time, the sealing gasket 11 made of rubber and sleeved on the outer surface of the rotating column 10 and located above the bearing 14 further blocks the leakage of fluids along the gap between the rotating column 10 and the installation groove 15, ensuring the sealing of the ball valve.

[0035] The utility model discloses a bearing 14 is installed between rotary column 10 and installation groove 15, and rotary column 10 is installed in the inner ring of bearing 14, thereby reducing the friction force when rotating, and further effectively reducing the friction coefficient between the valve core and valve body, reducing the energy loss due to friction, making the hemispherical valve core 6 more smooth in the rotating process.

[0036] Structure description: adaptive ball valve body 1: as the main structure of the ball valve, provide installation space for the hemispherical valve core 6, connect the electric control box 2, fixed seat 3 and the flange pipe on both sides, build the channel of fluid delivery, realize the control function to fluid, the model can refer to: Q347 eccentric hemispherical valve;

[0037] Electric control box 2: install at the top of adaptive ball valve body 1, through the bottom fixed connection's upper rotary rod 5, after receiving external control signal, drive the upper rotary rod rotation, thereby control the rotation of hemispherical valve core 6, realize the electric control of ball valve opening and closing;

[0038] Fixed seat 3: fixedly connected at the bottom of adaptive ball valve body 1, provide rotary support for lower rotary rod 7, and the threaded hole 9 of the bottom is used to cooperate with bolt 12 and install sealing cover 4, and annular sealing groove 13 is used to cooperate with sealing ring 8 and realize sealing;

[0039] Sealing cover 4: install at the bottom of fixed seat 3 through two bolts 12, and the installation groove 15 of the top is used to install rotary column 10 and bearing 14, and the sealing ring 8 of the top fixed connection is slidably connected with the annular sealing groove 13 of the bottom of fixed seat 3, plays the role of sealing and supporting rotating part;

[0040] Upper rotary rod 5: fixedly connected at the bottom of electric control box 2, is connected with the top end of hemispherical valve core 6, and the power of electric control box 2 is transmitted to hemispherical valve core 6, and the hemispherical valve core is rotated;

[0041] Hemispherical valve core 6: set up in the inside of adaptive ball valve body 1, and the top end is connected with the bottom end of upper rotary rod 5, and the bottom end is connected with the top end of lower rotary rod 7, and the opening and closing of fluid passage are controlled by rotating, realize the cut-off and conduction of fluid;

[0042] Lower rotary rod 7: rotatably connected in fixed seat 3, and the top end is connected with the bottom end of hemispherical valve core 6, and the bottom is fixedly connected with rotary column 10, and is rotated synchronously under the driving of hemispherical valve core 6, and the rotary power is transmitted, and the stable rotation of hemispherical valve core is guaranteed;

[0043] Sealing ring 8: fixedly connected at the top of sealing cover 4, slidably connected with the annular sealing groove 13 of the bottom of fixed seat 3, forms a sealing structure, prevents external impurities and fluid from entering the inside of ball valve from the connecting place of fixed seat 3 and sealing cover 4;

[0044] Rotary column 10: fixedly connected at the bottom of the lower rotary lever 7, rotatably connected in the top installation groove 15 of the sealing cover 4, and installed on the inner ring of the bearing 14, to transmit the rotation of the lower rotary lever 7 to the bearing, and realize smooth rotation;

[0045] Sealing gasket 11: made of rubber, sleeved on the outer surface of the rotary column 10 and located above the bearing 14, to further block the leakage of fluid along the gap between the rotary column 10 and the installation groove 15, and enhance the sealing effect;

[0046] Bearing 14: installed in the top installation groove 15 of the sealing cover 4, and the rotary column 10 is installed inside, to reduce the friction resistance when the rotary column 10 rotates, and ensure smooth rotation.

[0047] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by those skilled in the art in the technical field without departing from the purpose of the utility model.

Claims

1. A hemispherical adaptive valve core ball valve casting, characterized in that, include: The adaptive ball valve body (1), electric control box (2) and hemispherical valve core (6) are provided. The electric control box (2) is installed on the top of the adaptive ball valve body (1), and the hemispherical valve core (6) is located inside the adaptive ball valve body (1). The valve stem rotation structure is located on the adaptive ball valve body (1); The valve stem rotation structure includes a fixed seat (3), a lower rotating rod (7), two bolts (12) and a sealing cover (4). The fixed seat (3) is fixedly connected to the bottom of the adaptive ball valve body (1). The bottom of the fixed seat (3) has two threaded holes (9) and an annular sealing groove (13). Among them, both bolts (12) are connected to the internal threads of the corresponding threaded holes (9), the sealing cover (4) is installed at the bottom of the fixed seat (3) by the two bolts (12), and the lower rotating rod (7) is rotatably connected to the inside of the fixed seat (3); Among them, the bottom of the lower rotating rod (7) is fixedly connected to the rotating column (10), and the top of the sealing cover (4) is provided with the mounting groove (15), and the rotating column (10) is rotatably connected inside the mounting groove (15).

2. The hemispherical adaptive valve core ball valve casting according to claim 1, characterized in that: The valve stem rotation structure also includes a bearing (14), a sealing ring (8), and a sealing gasket (11), with the sealing ring (8) fixedly connected to the top of the sealing cover (4); Among them, the sealing ring (8) is slidably connected to the inside of the annular sealing groove (13), the bearing (14) is installed inside the mounting groove (15), the rotating column (10) is installed on the inner ring of the bearing (14), the sealing gasket (11) is sleeved on the outer surface of the rotating column (10), and the sealing gasket (11) is located above the bearing (14).

3. The hemispherical adaptive valve core ball valve casting according to claim 1, characterized in that: The bottom of the electric control box (2) is fixedly connected to an upper rotating rod (5).

4. The hemispherical adaptive valve core ball valve casting according to claim 3, characterized in that: The top end of the hemispherical valve core (6) is installed at the bottom end of the upper rotating rod (5), and the bottom end of the hemispherical valve core (6) is installed at the top end of the lower rotating rod (7).

5. The hemispherical adaptive valve core ball valve casting according to claim 1, characterized in that: Flange pipes are fixedly connected to both sides of the adaptive ball valve body (1).

6. The hemispherical adaptive valve core ball valve casting according to claim 2, characterized in that: The sealing gasket (11) is made of rubber.

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