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Fuel gas theftproof ball valve

An anti-theft ball and gas technology, applied to valve details, valve devices, devices to prevent accidental or unauthorized actions, etc., can solve the problems of easy loss of screws and cumbersome operation, and achieve the elimination of hidden dangers of screw loss, simple operation, Lock the effect of small operation force

Inactive Publication Date: 2018-01-19
张克勤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the valve can only be unlocked after removing the locking screw, which has the disadvantages of cumbersome operation and easy loss of the screw

Method used

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  • Fuel gas theftproof ball valve
  • Fuel gas theftproof ball valve
  • Fuel gas theftproof ball valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1, see figure 1 , figure 2 , image 3 , a gas anti-theft ball valve, including a valve body 1 and a valve cover 2, a valve core 3 is connected between the valve body 1 and the valve cover 2 through a sealing seat ring 9, and a wrench 5 is connected to the valve core 3 through a valve stem 4; the valve body One side of 1 is formed with a stuffing chamber, and the valve stem 4 is located in the stuffing chamber, and a sealing packing 10 is provided between the outer circumference of the valve stem 4 and the inner wall of the packing chamber, and the sealing packing 10 is compressed by the packing nut 11 to form the valve stem 4 and the valve. The sealing connection between body 1; the wrench 5 is T-shaped, and the wrench 5 is set on the outer end of the valve stem 4 through the vertical part in the middle of the T-shape, and forms a torque transmission structure through two parallel flat surfaces, and the valve stem 4 The outer end of the valve body 1 is hidden...

Embodiment 2

[0019] Example 2, see Figure 4 , the locking screw 6 is screwed on the outer wall of the stuffing chamber of the valve body 1, and the limit stop tongue 51 is located outside the head of the lock screw 6, so that when the lock screw 6 is tightened, the wrench 5 can rotate, and the limit stop tongue There is a perforation 52 horizontally on the 51, and the diameter of the perforation 52 is larger than the outer diameter of the screw opening tool 12 that can be inserted into the section, so that the locking screw 6 can be turned by the screw opening tool 12, so that the head of the locking screw 6 can extend into a part of the perforation 52, Thereby, the locking of the wrench 5 is formed; or, the locking screw 6 is twisted by the screw opening tool 12, so that the head of the locking screw 6 escapes from the perforation 52 and is positioned inside the limit stop tongue 51, thereby releasing the locking state of the wrench 5.

[0020] The rest of the structure of this embodimen...

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PUM

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Abstract

The invention discloses a fuel gas theftproof ball valve. The fuel gas theftproof ball valve comprises a ball valve, a valve deck and a valve element, wherein the valve element is connected with a wrench through a valve rod; the valve rod is located in a filler bin arranged on one side of the valve body; a limiting baffle tongue is which is used for limiting the range of a rotation angle of the wrench is formed on the wrench; a locking screw of which the head part is provided with a triangular-prism-shaped or four-petal-plum-column-shaped screwing structure is arranged between the limiting baffle tongue and the outer wall of the filler bin; the locking screw is used for locking the wrench through the outer wall of the filler bin; and when the locking screw is only separated from the outerwall of the filler bin or the limiting baffle tongue, the wrench is unlocked. The fuel gas theftproof ball valve has the beneficial effects that the locking screw can only be screwed by a special opening tool, so that the valve is prevented from being opened by misoperation or being opened arbitrarily, and use safety by a user is ensured; besides, the opening tool is small in structure size and isconvenient to carry; locking and unlocking operation is convenient and requires small force; the service life is long; and hidden danger that the locking screw is lost is avoided.

Description

technical field [0001] The invention relates to a ball valve, in particular to a gas anti-theft ball valve. Background technique [0002] Ball valve is a commonly used valve in the chemical industry, gas transmission, urban gas supply, and tap water supply pipelines. It has simple structure, reliable switch and long service life. Therefore, it is widely used in the above fields. Ordinary structure ball valves can be directly controlled by users as needed, and have control freedom and flexibility for direct users, but they lose control for gas supply and water supply management units. When the front-end engineering construction is not completed or the gas and water supply conditions are not met, after the valve is misoperated or operated without authorization, there will be safety hazards of tap water and gas leakage, or the risk of being stolen. The existing means of preventing unauthorized opening of the valve mainly includes designing the valve stem pulling interface as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/06F16K5/08F16K35/10
Inventor 张克勤
Owner 张克勤
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