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A ball valve structure and its key assembly

A ball valve and valve stem technology, applied in the field of ball valve structure and key components, can solve the problems of high manufacturing cost, influence of pipeline operation, pipeline damage, etc., and achieve the effects of simple and reliable structure, improved anti-theft performance, and high safety performance.

Active Publication Date: 2022-04-05
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional ball valves are vulnerable to third-party damage, resulting in pipeline damage, media loss and other consequences
The structure of the magnetic ball valve lock is complicated and the manufacturing cost is high. Once the magnetism fails, the valve will not work normally, which will seriously affect the operation of the pipeline.

Method used

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  • A ball valve structure and its key assembly
  • A ball valve structure and its key assembly
  • A ball valve structure and its key assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] combine Figure 1 to Figure 6 , a ball valve structure, including a lock sleeve 1 and a valve body 2, the valve body 2 is arranged in the lock sleeve 1, the upper end of the valve body 2 is connected with a valve stem 11, and the upper part of the valve stem 11 passes through the lock sleeve 1 and then connected There are a first rotating mechanism 3 and a first positioning mechanism 4 .

[0037] The first rotating mechanism 3 includes a first screw rod 31 connected to the upper end of the valve rod 11 , the first screw rod 31 is covered with a first nut 32 , and the top end of the first nut 32 is connected with a lower first rotating cover 33 .

[0038] The first positioning mechanism 4 includes a first rotating plate 41 connected to the side end of the valve rod 11 .

[0039] The upper end of the lock sleeve 1 is connected with a first protective block 5, the middle part of the first protective block 5 is provided with a first valve stem hole 51, the valve stem 11 is...

Embodiment 2

[0053] combine image 3 , a key assembly applied to the above-mentioned ball valve structure, comprising an upper unlocking lever 8, a rotating handle 81 and a lower unlocking lever 82, the rotating handle 81 is connected to the upper part of the lower unlocking lever 82, and the upper unlocking lever 8 is connected to the upper end of the lower unlocking lever 82, The upper end of the upper unlocking rod 8 is provided with a first unlocking head 83 , and the lower end of the lower unlocking rod 82 is provided with a first stepped hole 84 .

[0054] The first stepped hole 84 is composed of a first upper groove portion 85, a first middle groove portion 86 and a first lower groove portion 87. The first upper groove portion 85 fits and engages with the lower first rotating cover 33, and the first middle groove portion The portion 86 can fit and clip with the first nut 32 , and the first lower groove portion 87 can fit and clip with the upper part of the valve stem 11 .

[0055] ...

Embodiment 3

[0057] When the above ball valve structure is in use, the ball valve structure is opened by the key assembly. The first protective block 5 and the first protective cover 73 protect the first rotating mechanism 3 and the first positioning mechanism 4 . When unlocking normally, open the first protective cover 73 . Insert the upper unlocking lever 8 of the key assembly into the first vertical rotation hole 53, the first alloy block part 89 fits and engages with the first positioning lever hole 61, and the turning handle 81 drives the first vertical positioning lever 6 to rotate, counterclockwise After the first vertical positioning rod 6 is rotated, the first vertical positioning rod 6 moves upward, and the first vertical positioning rod 6 is separated from the first rotating plate 41 .

[0058] Pull out the key assembly, and insert the lower unlocking lever 82 of the key assembly into the first dial hole and the first valve stem hole 51 . The first stepped hole 84 fits and eng...

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PUM

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Abstract

The invention discloses a ball valve structure, which includes a lock sleeve and a valve body. The upper end of the valve body is connected with a valve stem. After passing through the lock sleeve, the upper part of the valve stem is connected with a first rotating mechanism and a first positioning mechanism. The first rotating mechanism includes The first screw rod is connected with the first nut and the first rotating cover; the first positioning mechanism includes the first rotating plate, and the first rotating plate is connected with the side end of the valve rod; the upper end of the lock sleeve is connected with the first protection block, the first valve stem hole and the first rotation cavity are set in the first protection block, and the first vertical rotation hole is opened on the first protection block at the side end of the first valve stem hole; the first vertical rotation hole is spirally connected with the first vertical rotation hole. The positioning rod, the first vertical positioning rod is positioned and connected with the first rotating plate in the first rotating chamber. The invention also discloses a key assembly, which includes an unlocking lever, a rotating handle and a lower unlocking lever. The upper unlocking lever is connected with a first unlocking head, and the lower end surface of the lower unlocking lever is provided with a first stepped hole. The structure of the ball valve and the key assembly are safer and more reliable, and have high practicability.

Description

technical field [0001] The invention relates to a lock, in particular to a ball valve structure and a key assembly thereof. Background technique [0002] In the fluid pipeline system, the valve is a control element, and its main function is to isolate the equipment and the pipeline system, regulate the flow rate, prevent backflow, regulate and discharge the pressure. It 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. [0003] Ball valve, the opening and closing ball is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for the regulation and control of fluids, among which the hard-sealed V-shaped ball valve has a strong shear force between its V-shaped ball core and the metal valve seat of surfacing welding carbide, and is especially suitable for fibers and tiny solid particles. etc. medium. The multi-way ball valve can not ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K5/06F16K35/00F16K37/00E05B19/00
CPCF16K5/0647F16K37/0016F16K35/00E05B19/00
Inventor 王浩陈亮颜鹏飞厉建祥王廷春
Owner CHINA PETROLEUM & CHEM CORP