CN221838940U - A control valve with good pressure bearing performance - Google Patents

Abstract

The utility model discloses a control valve with good pressure bearing performance, which belongs to the field of valves and comprises a valve body, wherein a valve ball is rotatably arranged in the valve body, a valve hole is formed in the middle of the valve ball, a valve rod is detachably arranged at the top of the valve ball, positioning grooves are formed in two sides of the bottom of the valve ball, grooves are formed in two sides of the bottom of the valve body, positioning rods movably penetrate through the grooves, the surfaces of the positioning rods are fixedly connected with limiting rings, springs are sleeved below the limiting rings, and the lower ends of the positioning rods are fixedly connected with pull rods; through setting up of constant head tank, recess, locating lever, spacing ring, spring and pull rod, when the valve was closed, two locating levers were just in time aimed at to two locating levers of valve ball, and at this moment, the locating lever can insert the locating slot under the effect of spring in, fixes a position the valve ball, can avoid the valve ball to take place to rock, improves valve bearing capacity, guarantees the leakproofness of valve.

Description

A control valve with good pressure bearing performance

Technical Field

The utility model belongs to the technical field of valves, and in particular relates to a control valve with good pressure-bearing performance.

Background Art

Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media.

Regarding the ball valve in the prior art, the ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. It only needs to rotate 90 degrees and a very small torque to realize the valve opening and closing. The ball valve is most suitable for use as a switch and cut-off valve. The ball valve is usually composed of a valve body, a valve ball in the valve body, and a valve stem for operating the valve ball.

In the process of implementing the above, the inventors found that there are at least the following problems in this technology: when the valve is closed, if the fluid pressure is high and the valve is subjected to high pressure for a long time, the valve ball is prone to shaking, affecting the sealing of the valve.

Utility Model Content

The utility model aims to provide a control valve with good pressure bearing performance to solve the problems raised in the above background technology.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a control valve with good pressure-bearing performance, comprising a valve body, a valve ball is rotatably installed inside the valve body, a valve hole is opened in the middle of the valve ball, a valve stem is detachably installed on the top of the valve ball, positioning grooves are opened on both sides of the bottom of the valve ball, grooves are opened on both sides of the bottom of the valve body, a positioning rod movably penetrates the groove, a limiting ring is fixedly connected to the surface of the positioning rod, a spring is sleeved on the surface of the positioning rod below the limiting ring, and a pull rod is fixedly connected to the lower end of the positioning rod.

As a preferred implementation, a slot is provided on the top of the valve ball, and a clamping block is provided on the lower end of the valve stem, and the clamping block is clamped in the slot.

As a preferred implementation, a limit plate is fixedly connected to the surface of the valve stem, and a limit block is threadedly installed on the top of the valve body.

As a preferred implementation, first sealing rings are embedded and installed at both ends of the valve body.

As a preferred implementation, a second sealing ring is embedded and installed on the bottom wall of the valve body above the groove.

As a preferred implementation, the first sealing ring and the second sealing ring are both made of polyurethane.

Compared with the prior art, the beneficial effects of the utility model are:

The control valve with good pressure bearing performance is provided with positioning grooves, grooves, positioning rods, limit rings, springs and pull rods. When the valve is closed, the two positioning grooves of the valve ball are aligned with the two positioning rods. At this time, the positioning rods are inserted into the positioning grooves under the action of the springs to position the valve ball, thereby preventing the valve ball from shaking, improving the pressure bearing performance of the valve, and ensuring the sealing of the valve.

The control valve with good pressure-bearing performance is provided with a slot, a block, a limit plate and a limit block. When installing the valve stem, the block of the valve stem is inserted into the slot of the valve ball, and the limit block is threadedly installed on the top of the valve body, and the limit plate is limited to realize the installation of the valve stem, which is convenient for disassembly of the valve stem.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a bottom view of the structure of the present invention;

FIG3 is a schematic diagram of the internal structure of the utility model;

FIG. 4 is a bottom view of the structure of the valve ball of the present invention.

In the figure: 1. valve body; 2. valve ball; 3. valve hole; 4. valve stem; 5. positioning groove; 6. groove; 7. positioning rod; 8. limiting ring; 9. spring; 10. pull rod; 11. slot; 12. block; 13. limiting plate; 14. limiting block; 15. first sealing ring; 16. second sealing ring.

DETAILED DESCRIPTION

The present invention will be further described below in conjunction with the embodiments.

The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

Please refer to Figures 1-4. The utility model provides a control valve with good pressure-bearing performance, including a valve body 1, a valve ball 2 is rotatably installed inside the valve body 1, a valve hole 3 is opened in the middle of the valve ball 2, and a valve stem 4 is detachably installed on the top of the valve ball 2. Through the arrangement of the valve ball 2, the valve hole 3 and the valve stem 4, when in use, the valve ball 2 can be driven to rotate by rotating the valve stem 4. When the valve hole 3 of the valve ball 2 is parallel to the flow direction of the fluid, the fluid can pass through the valve hole 3 to open the valve. When the valve hole 3 of the valve ball 2 is perpendicular to the flow direction of the fluid, the valve is closed.

Among them, a slot 11 is opened at the top of the valve ball 2, and a block 12 is provided at the lower end of the valve stem 4, which is engaged with the slot 11, and a limit plate 13 is fixedly connected to the surface of the valve stem 4. A limit block 14 is threadedly installed on the top of the valve body 1. Through the arrangement of the slot 11, the block 12, the limit plate 13 and the limit block 14, when installing the valve stem 4, the block 12 of the valve stem 4 is inserted into the slot 11 of the valve ball 2, and then the limit block 14 is threadedly installed on the top of the valve body 1 to limit the limit plate 13, thereby realizing the installation of the valve stem 4 and facilitating the disassembly of the valve stem 4.

Positioning grooves 5 are provided on both sides of the bottom of the valve ball 2, and grooves 6 are provided on both sides of the bottom of the valve body 1. A positioning rod 7 movably penetrates the groove 6, and a limiting ring 8 is fixedly connected to the surface of the positioning rod 7. A spring 9 is sleeved on the surface of the positioning rod 7 below the limiting ring 8, and a pull rod 10 is fixedly connected to the lower end of the positioning rod 7. Through the arrangement of the positioning grooves 5, the grooves 6, the positioning rod 7, the limiting ring 8, the spring 9 and the pull rod 10, when the valve is closed, the two positioning grooves 5 of the valve ball 2 are aligned with the two positioning rods 7. At this time, the positioning rod 7 will be inserted into the positioning groove 5 under the action of the spring 9 to position the valve ball 2, which can prevent the valve ball 2 from shaking, improve the pressure bearing performance of the valve, and ensure the sealing of the valve.

Among them, a first sealing ring 15 is embedded and installed at both ends of the valve body 1, and a second sealing ring 16 is embedded and installed on the inner bottom wall of the valve body 1 located above the groove 6. The first sealing ring 15 and the second sealing ring 16 are both made of polyurethane. Through the setting of the first sealing ring 15, the sealing between the valve body 1 and the pipeline can be improved. Through the setting of the second sealing ring 16, the sealing at the connection between the positioning rod 7 and the valve body 1 can be improved.

The working principle and use process of the utility model are as follows: firstly, through the arrangement of the valve ball 2, the valve hole 3 and the valve stem 4, when in use, the valve ball 2 can be driven to rotate by rotating the valve stem 4. When the valve hole 3 of the valve ball 2 is parallel to the flow direction of the fluid, the fluid can pass through the valve hole 3 to open the valve. When the valve hole 3 of the valve ball 2 is perpendicular to the flow direction of the fluid, the valve is closed. Through the arrangement of the positioning groove 5, the groove 6, the positioning rod 7, the limit ring 8, the spring 9 and the pull rod 10, when the valve is closed, the two positioning grooves 5 of the valve ball 2 are aligned with the two positioning rods 7. At this time, the positioning rod 7 will be inserted into the positioning groove 5 under the action of the spring 9 to position the valve ball 2, thereby avoiding the shaking of the valve ball 2, improving the pressure bearing performance of the valve, and ensuring the sealing of the valve.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a control valve that bearing performance is good, includes valve body (1), its characterized in that: valve ball (2) are installed in the inside rotation of valve body (1), valve hole (3) have been seted up at the middle part of valve ball (2), valve rod (4) have been installed in the top demountable installation of valve ball (2), constant head tank (5) have all been seted up to the both sides of valve ball (2) bottom, recess (6) have all been seted up to the both sides of valve body (1) bottom, movable run-through has locating lever (7) in recess (6), the fixed surface of locating lever (7) is connected with spacing ring (8), spring (9) have been cup jointed in the below that locating lever (7) surface is located spacing ring (8), the lower extreme fixedly connected with pull rod (10) of locating lever (7).

2. The control valve with good pressure-bearing performance according to claim 1, wherein: the top of valve ball (2) has seted up draw-in groove (11), the lower extreme of valve rod (4) is equipped with fixture block (12), fixture block (12) and draw-in groove (11) joint.

3. The control valve with good pressure-bearing performance according to claim 1, wherein: the surface of the valve rod (4) is fixedly connected with a limiting plate (13), and a limiting block (14) is arranged on the top thread of the valve body (1).

4. The control valve with good pressure-bearing performance according to claim 1, wherein: the two ends of the valve body (1) are embedded and provided with first sealing rings (15).

5. The control valve with good pressure-bearing performance according to claim 4, wherein: the inner bottom wall of the valve body (1) is arranged above the groove (6) in an embedded mode and is provided with a second sealing ring (16).

6. The control valve with good pressure-bearing performance according to claim 5, wherein: the first sealing ring (15) and the second sealing ring (16) are made of polyurethane.