Control valve with integrated upper shaft and lower shaft of C ball core

Abstract

The upper shaft and lower shaft integrated control valve of the C ball core comprises a valve body, a bearing pressing plate is arranged at the top end of the valve body, and a valve ball is arranged at the top end of the bearing pressing plate; a valve cover is arranged at a water inlet of the valve body, a valve seat is arranged in a stepped groove in the inner side of the valve cover, a C-shaped eccentric valve element abutting against the valve seat is arranged in a valve cavity of the valve body, valve rods integrally formed with the eccentric valve element are arranged at the upper end and the lower end of the valve body, and the valve rod at the top is connected with a valve ball. When the valve needs to be opened, the integrated C-shaped eccentric valve element and the valve seat are separated instantly, friction between the eccentric valve element and the valve seat can be reduced, abrasion between the eccentric valve element and the valve seat is reduced, and the service life is long; the eccentric valve element and the valve rod are integrally formed, and the situation that gaps exist in the connecting positions of the upper and lower valve rods and the valve element due to traditional upper and lower valve rod design is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of control valves, in particular to a control valve in which an upper shaft and a lower shaft of a C-shaped ball core are integrated. Background Art

[0002] Control valves consist of two main components: the valve body assembly and the actuator assembly (or actuator system). They are divided into four major series: single-seat series control valves, double-seat series control valves, sleeve series control valves, and self-operated series control valves. Variations on these four valve types can result in numerous different applicable structures, each with its own specific applications, characteristics, advantages, and disadvantages.

[0003] During the use of the control valve, since the current valve core and valve body are basically concentric, without eccentricity or with a small eccentricity, it is easy for the valve seat and valve seat to wear, affecting the service life. In addition, the traditional upper and lower valve stem design causes a gap at the connection between the valve stem and the valve core. Summary of the Invention

[0004] In order to solve the defects of the prior art, the present invention provides a control valve in which the upper shaft and the lower shaft of the C-spherical core are integrated.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The upper shaft and lower shaft of the C ball core of the present invention are an integrated control valve, including a valve body, a bearing pressure plate is provided at the top of the valve body, and a valve ball is provided at the top of the bearing pressure plate; a valve cover is provided at the water inlet of the valve body, a valve seat is provided in the inner stepped groove of the valve cover, an eccentric valve core in a C shape that abuts the valve seat is provided in the valve cavity of the valve body, and a valve stem integrally formed with the eccentric valve core is provided at the upper and lower ends of the valve body, and the valve stem at the top is connected to the valve ball.

[0007] As a preferred technical solution of the present invention, the valve stem and the valve body are connected via a bearing.

[0008] As a preferred technical solution of the present invention, the bearing pressure plate is fixed to the valve body by a first hexagon socket bolt.

[0009] As a preferred technical solution of the present invention, a bearing gasket and a stuffing gasket sleeved on the valve stem are provided in the valve body, and a stuffing gasket is filled between the bearing gasket and the stuffing gasket.

[0010] As a preferred technical solution of the present invention, the valve cover is fixedly connected to the valve body via a first stud bolt.

[0011] As a preferred technical solution of the present invention, a valve body sealing gasket is provided at the connection between the valve cover and the valve body.

[0012] As a preferred technical solution of the present invention, pressure plate sealing rings are provided between the bearing pressure plate and the valve body and between the bearing pressure plate and the valve stem.

[0013] As a preferred technical solution of the present invention, the outer end of the eccentric valve core is connected to the valve core pressure plate through a second hexagon socket bolt.

[0014] As an optimal technical solution of the present invention, a valve core sealing ring is provided on the eccentric valve core, a valve seat compensation sealing ring and a valve seat sealing ring are provided between the valve cover and the valve seat, and a valve seat compensation groove is provided at the connection between the valve cover and the valve seat compensation sealing ring.

[0015] As a preferred technical solution of the present invention, the side wall of the valve body is provided with an observation frame plate, an observation mirror is bonded inside the observation frame plate by sealing adhesive, the observation frame plate and the valve body are fixedly connected by a second stud bolt, and the inner wall of the observation frame plate is provided with a sealing gasket.

[0016] The beneficial effects of the present invention are:

[0017] 1. The upper and lower shafts of this C-shaped ball core are integrated into the control valve. When the valve is about to open, the integrated and C-shaped eccentric valve core and the valve seat are instantly disengaged, which can reduce the friction between the eccentric valve core and the valve seat, thereby reducing the wear of the eccentric valve core and the valve seat and extending the service life. The eccentric valve core and the valve stem are integrally formed, avoiding the traditional upper and lower valve stem design, which results in a gap at the connection between the upper and lower valve stems and the valve core.

[0018] 2. The upper and lower shafts of this C-ball core are integrated control valves. Through the observation mirror provided, when the valve cavity of the valve body is full of material, the observation mirror can be opened to facilitate cleaning of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a top sectional view of the upper and lower shafts of the C-core of the present invention forming an integrated control valve;

[0021] Figure 2 This is a front sectional view of the upper and lower shafts of the C-shaped ball core of the present invention forming an integrated control valve.

[0022] In the figure: 1. Valve body; 2. Bearing pressure plate; 3. Valve ball; 4. Valve cover; 5. Valve seat; 6. Eccentric valve core; 7. Valve stem; 8. First hexagon socket head bolt; 9. Bearing gasket; 10. Packing gasket; 11. Packing; 12. First stud bolt; 13. Valve body sealing gasket; 14. Pressure plate sealing ring; 15. Second hexagon socket head bolt; 16. Valve core pressure plate; 17. Valve core sealing ring; 18. Valve seat compensation sealing ring; 19. Valve seat sealing ring; 20. Valve seat compensation groove; 21. Observation frame plate; 22. Observation mirror; 23. Second stud bolt; 24. Sealing gasket; 25. Bearing. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] Example: Figure 1 and Figure 2 As shown, the upper shaft and the lower shaft of the C ball core of the present invention are an integrated control valve, including a valve body 1, a bearing pressure plate 2 is provided at the top of the valve body 1, and a valve ball 3 is provided at the top of the bearing pressure plate 2; a valve cover 4 is provided at the water inlet of the valve body 1, and a valve seat 5 is provided in the inner stepped groove of the valve cover 4, and an eccentric valve core 6 in a C shape is provided in the valve cavity of the valve body 1, which abuts against the valve seat 5, and the upper and lower ends of the valve body 1 are provided with valve stems 7 integrally formed with the eccentric valve core 6, and the top valve stem 7 is connected to the valve ball 3. When the valve is to be opened, the integrated and C-shaped eccentric valve core 6 is instantly disengaged from the valve seat 5, which can reduce the friction between the eccentric valve core 6 and the valve seat 5, thereby reducing the wear of the eccentric valve core 6 and the valve seat 5, and has a long service life; the eccentric valve core 6 and the valve stem 7 are integrally formed, avoiding the traditional upper and lower valve stems 7 design, so that there is a gap at the connection between the upper and lower valve stems 7 and the valve core.

[0025] The valve stem 7 is connected to the valve body 1 via a bearing 25 , and the bearing 25 is used to fix the eccentric valve core 6 , so that the eccentric valve core 6 has higher stability during movement, reduces the torque of the valve, and increases the service life.

[0026] The bearing pressure plate 2 is fixed to the valve body 1 by a first hexagon socket bolt 8, which is convenient for disassembly and assembly.

[0027] Among them, the valve body 1 is provided with a bearing gasket 9 and a packing gasket 10 which are sleeved on the valve stem 7, and a packing 11 is filled between the bearing gasket 9 and the packing gasket 10. The design of the upper and lower packings 11 solves the common problem of the traditional valve stem 7 being locked.

[0028] The valve cover 4 is fixedly connected to the valve body 1 via a first stud bolt 12, which facilitates assembly and disassembly.

[0029] A valve body sealing gasket 13 is provided at the connection between the valve cover 4 and the valve body 1 , thereby improving the sealing performance of the connection between the valve cover 4 and the valve body 1 .

[0030] Among them, pressure plate sealing rings 14 are provided between the bearing pressure plate 2 and the valve body 1 and between the bearing pressure plate 2 and the valve stem 7, which improve the sealing performance between the bearing pressure plate 2 and the valve body 1 and between the bearing pressure plate 2 and the valve stem 7.

[0031] The outer end of the eccentric valve core 6 is connected to a valve core pressure plate 16 via a second hexagon socket bolt 15 .

[0032] Among them, a valve core sealing ring 17 is provided on the eccentric valve core 6, a valve seat compensation sealing ring 18 and a valve seat sealing ring 19 are provided between the valve cover 4 and the valve seat 5, and a valve seat compensation groove 20 is provided at the connection between the valve cover 4 and the valve seat compensation sealing ring 18, which improves the sealing performance and can also compensate for the valve seat 5.

[0033] Among them, the side wall of the valve body 1 is provided with an observation frame plate 21, and an observation mirror 22 is bonded to the inside of the observation frame plate 21 by sealing adhesive. The observation frame plate 21 and the valve body 1 are fixedly connected by a second stud bolt 23. The inner side wall of the observation frame plate 21 is provided with a sealing gasket 24. Through the observation mirror 22, when the valve cavity of the valve body 1 is full of material, the observation mirror 22 is opened, so that the material can be easily cleaned. The sealing gasket 24 can play a sealing role, and the setting of the second stud bolt 23 can disassemble and assemble the observation frame plate 21.

[0034] During operation, the upper shaft and the lower shaft of the C-shaped ball core form an integrated control valve. When the valve is to be opened, the integrated and C-shaped eccentric valve core 6 and the valve seat 5 are instantly disengaged, which can reduce the friction between the eccentric valve core 6 and the valve seat 5, thereby reducing the wear of the eccentric valve core 6 and the valve seat 5 and increasing the service life; the eccentric valve core 6 and the valve stem 7 are integrally formed, avoiding the traditional upper and lower valve stem 7 design, which results in a gap at the connection between the upper and lower valve stems 7 and the valve core.

[0035] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. The upper shaft and lower shaft of the C ball core are an integrated control valve, including a valve body (1), both ends and the back of the valve body (1) are provided with water inlets and outlets, characterized in that: A bearing pressure plate (2) is provided at the top of the valve body (1), and a valve ball (3) is provided at the top of the bearing pressure plate (2); a valve cover (4) is installed at the water inlet of the valve body (1), a valve seat (5) is installed in the inner stepped groove of the valve cover (4), an eccentric valve core (6) in a C shape and in contact with the valve seat (5) is provided in the valve cavity of the valve body (1), and a valve stem (7) connected to the eccentric valve core (6) is provided at the upper and lower ends of the valve body (1), and the valve stem (7) at the top is connected to the valve ball (3).

2. The upper shaft and the lower shaft of the C-shaped ball core according to claim 1 are an integrated control valve, characterized in that: The valve stem (7) and the valve body (1) are connected via a bearing (25).

3. The upper shaft and the lower shaft of the C-shaped ball core according to claim 1 are an integrated control valve, characterized in that: The bearing pressure plate (2) is fixed to the valve body (1) via a first hexagon socket bolt (8).

4. The upper shaft and the lower shaft of the C-shaped ball core according to claim 1 are an integrated control valve, characterized in that: A bearing gasket (9) and a packing gasket (10) sleeved on the valve stem (7) are provided in the valve body (1), and a packing gasket (11) is filled between the bearing gasket (9) and the packing gasket (10).

5. The upper shaft and the lower shaft of the C-shaped ball core according to claim 1 are an integrated control valve, characterized in that: The valve cover (4) is fixedly connected to the valve body (1) via a plurality of first stud bolts (12).

6. The upper shaft and the lower shaft of the C-shaped ball core according to claim 1 are an integrated control valve, characterized in that: A valve body sealing gasket (13) is provided at the connection between the valve cover (4) and the valve body (1).

7. The upper shaft and the lower shaft of the C-shaped ball core according to claim 1 are an integrated control valve, characterized in that: A pressure plate sealing ring (14) is provided between the bearing pressure plate (2) and the valve body (1) and between the bearing pressure plate (2) and the valve stem (7).

8. The upper shaft and the lower shaft of the C-shaped ball core according to claim 1 are an integrated control valve, characterized in that: The outer end of the eccentric valve core (6) is connected to a valve core pressure plate (16) via a second hexagon socket bolt (15).

9. The upper shaft and the lower shaft of the C-shaped ball core according to claim 1 are an integrated control valve, characterized in that: The eccentric valve core (6) is provided with a valve core sealing ring (17), a valve seat compensation sealing ring (18) and a valve seat sealing ring (19) are provided between the valve cover (4) and the valve seat (5), and a valve seat compensation groove (20) is provided at the connection between the valve cover (4) and the valve seat compensation sealing ring (18).

10. The upper shaft and the lower shaft of the C-shaped ball core according to claim 1 are an integrated control valve, characterized in that: The side wall of the valve body (1) is provided with an observation frame plate (21), an observation mirror (22) is bonded inside the observation frame plate (21) by means of sealing adhesive, the observation frame plate (21) and the valve body (1) are fixedly connected by a second stud bolt (23), and a sealing gasket (24) is provided on the inner side wall of the observation frame plate (21).

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