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Self-locking valve and system

A self-locking and valve technology, which is applied to valve details, valve devices, devices to prevent accidental or unauthorized actions, etc., to ensure personal safety, avoid misoperation and wrong closing of valves, and improve safe operability

Active Publication Date: 2022-01-25
ZIGONG ZIGAO VALVE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, after the valve is closed, it is locked, and no one can directly open the valve again

Method used

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  • Self-locking valve and system
  • Self-locking valve and system
  • Self-locking valve and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as Figure 1-Figure 5 As shown, the present invention provides a self-locking valve, including a valve stem 8, the top of the valve stem 8 is connected to a locking part that drives the valve stem to rotate, and the valve stem 8 and the locking part are provided with a self-locking mechanism, and the self-locking The mechanism includes an opening and closing stroke slot 16 provided on the engaging piece, a push block 11 fixed on the valve stem 8 that can run relatively in the opening and closing stroke slot 16, and respectively set on the engaging piece and the valve stem 8. and mutually matched slots; the engaging piece is connected with the valve stem 8 in rotation.

[0031] The self-locking mechanism is a closed position self-locking mechanism. When the valve stem 8 is in the open state, the push block 11 is at the beginning of the opening and closing stroke slot 16; the opening and closing stroke slot 16 is arc-shaped, and it is in line with the valve Rod 8 is...

Embodiment 2

[0052] Such as Figure 1-Figure 5 As shown, the present invention provides a self-locking valve system, which includes the self-locking valve in Embodiment 1 of the above technical solution, and also includes an unlocking key 20, and the unlocking key 20 is engaged with the card slot. The unlocking key is inserted into the card slot for meshing connection; when the valve is opened, the reverse torque T drives the engaging part 19 to rotate, and the unlocking key drives the valve stem 8 to reversely rotate, breaking the idling state of the engaging part 19, and the engaging part 19 Drive the stopper 7 to lock in the second position, and the ball 2 and the housing form an open circuit to open the valve.

[0053] The locking grooves are arranged axially on the rotating surface along the engaging member and the valve stem 8 respectively. Specifically, the card slot is divided into a first groove 14 and a second groove 15 . The first groove 14 is vertically set on the cylindrical...

Embodiment 3

[0063] Embodiment 1 The technical solution of the self-locking valve can also be applied in the state that the pipeline is normally open and cannot be closed. For example, transport refrigerant to the equipment to cool the equipment. When the delivery of refrigerant is interrupted, the equipment will not be able to dissipate heat sufficiently and be burned out. At this time, this kind of self-locking valve is an open position self-locking valve. The specific application is: the valve is closed at the closed position, and the pipeline is closed at this time; During transportation, the valve is in the open position, it cannot be directly closed again, and the valve is in the open position locked state; that is, the valve can only be opened but not closed, and it cannot be directly closed again when the valve is opened.

[0064] When the valve needs to be closed, use the unlocking key 20 to engage with the card slot; at this time, the valve can be closed.

[0065] The specific ...

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Abstract

The invention relates to the technical field of valves, and discloses a self-locking valve. The self-locking valve comprises a valve rod, and a clamping piece used for driving the valve rod to rotate is connected with the top of the valve rod, the self-locking valve is characterized in that a self-locking mechanism is arranged on the valve rod and the clamping piece, the self-locking mechanism comprises an opening and closing stroke groove hole formed in the clamping piece, a push block fixed to the valve rod and capable of relatively running in the opening and closing stroke groove hole, and clamping grooves formed in the clamping piece and the valve rod respectively and matched with each other, and the clamping piece is rotationally matched and connected with the valve rod. According to the self-locking valve, the self-locking function of the valve in the closed state can be achieved, and the valve cannot be directly opened again after self-locking. Accidents caused by opening the valve by mistake due to misoperation can be avoided. The safety operability of the valve is improved, and the personal safety of workers is guaranteed.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a self-locking valve and a system. Background technique [0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, adjust and control the parameters (temperature, pressure and flow) of the conveying medium. The valve is a control component in the fluid delivery system, which has functions such as cut-off, adjustment, flow diversion, reverse flow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems range from the simplest cut-off valves to various valves used in extremely complex automatic control systems, with a wide variety of varieties and specifications. [0003] Valves are distributed in every corner of urban pipeline construction, such as water pipelines, natural gas pipelines, heating pipelines, etc., and are closely related to the safety of people's living environment. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K35/06
CPCF16K35/06
Inventor 兰正辉余俊伟邓辉顾才利李治舒维泉唐克超文玉龙唐宁杨靖朱超邓旭宏昂仁杰唐琳
Owner ZIGONG ZIGAO VALVE
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