CN206754569U

CN206754569U - A kind of valve safety opening-and-closing device

Info

Publication number: CN206754569U
Application number: CN201720422609.7U
Authority: CN
Inventors: 孔玉祥
Original assignee: Suzhou Hong Kong And China Gas Co Ltd
Current assignee: Suzhou Hong Kong And China Gas Co Ltd
Priority date: 2017-04-21
Filing date: 2017-04-21
Publication date: 2017-12-15
Anticipated expiration: 2027-04-21

Abstract

The utility model discloses a kind of valve safety opening-and-closing device, it is mostly installed on the keying head of valve or on the valve rod of valve, it includes being set in the safe outer ring on the keying head or the stem outer circumference surface, it can be relatively rotated between the safe outer ring and the keying head or the valve rod, the valve rod or the end set for opening and closing head have irregularly-shaped hole or a special-shaped boss, and the upper surface of the irregularly-shaped hole and the special-shaped boss is below the upper surface of the safe outer ring.After the utility model sets safe outer ring on the top on the top of valve rod or keying head, general instrument can only rotate safe outer ring, and non-matching key can not be connected with valve rod or keying head, can not operate valve；For all valve rods or open and close head upper dimension shape and uniformly provide safety guarantee, so as to greatly reduce the species of valve and specification, moreover it is possible to realize key to the valvular operation of institute, significantly reduce the operation sequence and burden of maintenance personal.

Description

A kind of valve safety opening-and-closing device

【Technical field】

The utility model belongs to valve opening technical field, more particularly to a kind of valve safety opening-and-closing device.

【Background technology】

The manually-operated gate on the various transmission ＆ distribution pipelines in domestic city opens and closes at present, is mainly connected Valve key by operating personnel The realization of valve rod end rotation valve rod is connected on, but because valve rod head generally is bright dew, outside is square structure, according to Also rotatable valve rod carries out keying operation to the conventional tools such as monkey wrench, pipe wrench to valve.On some special burning lines, such as Personnel's maloperation be present and Special valve is subjected to keying operation, the consequence that can not be imagined may be caused, it is stable for social safety It is a big hidden danger.

Therefore, it is necessary to a kind of new valve safety opening-and-closing device is provided to solve the above problems.

【Utility model content】

Main purpose of the present utility model is to provide a kind of valve safety opening-and-closing device, can prevent non-dedicated instrument from opening Valve is opened, causes potential safety hazard.

The utility model is achieved through the following technical solutions above-mentioned purpose：A kind of valve safety opening-and-closing device, it is mainly pacified Mounted in opening and closing on head or on the valve rod of valve for valve, it includes being set in the peace on the keying head or the stem outer circumference surface Full outer ring, it can be relatively rotated between the safe outer ring and the keying head or the valve rod, the valve rod or the keying head End set have irregularly-shaped hole or a special-shaped boss, the upper surface of the irregularly-shaped hole and the special-shaped boss is below outside the safety The upper surface of circle.

Further, the inner peripheral surface of the safe outer ring is provided with an annular groove A, the keying head or the valve rod Outer surface be provided with annular groove B corresponding with the annular groove location A, the annular groove A and the annular groove B An annular space is formed, some balls are filled with the annular space.

Further, the surface of the safe outer ring is provided with the through hole connected with the annular space.

Further, the upper end for opening and closing head and being arranged on the valve rod, the safe outer ring is set in the keying head Outer surface.

Compared with prior art, a kind of beneficial effect of valve safety opening-and-closing device of the utility model is：In valve valve The top of bar or open and close head top safe outer ring is set after, general instrument can only rotate safe outer ring, non-matching key without Method is connected with valve rod or keying head, can not be realized rotary valve rod or be opened and closed head operation valve, personnel's maloperation is prevented so as to reach The purpose of controlled valve；Furthermore it is possible to all valve rods or keying head upper dimension shape are unified for a kind of size and one kind Shape, safe outer ring is then respectively mounted in outer surface, so as to greatly reduce the species specification of valve, moreover it is possible to realize a key Spoon significantly reduces the operation sequence and burden of maintenance personal to the valvular operation of institute.

【Brief description of the drawings】

Fig. 1 is one of structural representation of the utility model embodiment；

Fig. 2 is the two of the structural representation of the utility model embodiment；

Fig. 3 is the three of the structural representation of the utility model embodiment；

Fig. 4 is the four of the structural representation of the utility model embodiment；

Numeral represents in figure：

100 valve safety opening-and-closing devices；

1 safe outer ring；2 balls；3 open and close head；4 valve rods；5 through holes；6 irregularly-shaped holes；7 special-shaped boss.

【Embodiment】

Embodiment：

Fig. 1-Fig. 4 is refer to, the present embodiment is valve safety opening-and-closing device 100, and it is mostly installed at the keying first 3 of valve On the upper or valve rod 4 of valve, it includes being set in the safe outer ring 1 of the keying outer surface of first 3 or described valve rod 4, safety The inner peripheral surface of outer ring 1 is provided with an annular groove A (not indicated in figure), and the outer surface for opening and closing first 3 or described valve rods 4 is set Annular groove B (not indicated in figure) corresponding with the annular groove location A is equipped with, the annular groove A and the annular are recessed Groove B forms an annular space (not indicated in figure), and some balls 2 are filled with the annular space.

The surface of the safe outer ring 1 is provided with the through hole 5 connected with the annular space, is put into for the ball 2, After ball 2 is piled, the through hole 5 is blocked.

The valve rod 4 or the end set for opening and closing first 3 have irregularly-shaped hole 6 or special-shaped boss 7, the irregularly-shaped hole 6 and institute The upper surface for stating special-shaped boss 7 is below the upper surface of the safe outer ring.It is described to open and close first 3 installed in the upper of the valve rod 4 End, the safe outer ring 1 are set in the outer surface of the keying first 3.

The present embodiment valve safety opening-and-closing device 100 has the beneficial effect that：On the top of valve rod or open and close the upper of head After portion sets safe outer ring, general instrument can only rotate safe outer ring, and non-matching key can not be connected with valve rod or keying head, Rotary valve rod can not be realized or open and close head operation valve, so as to reach the purpose for preventing personnel's maloperation controlled valve；In addition, can So that all valve rods or keying head upper dimension shape are unified for into a kind of size and a kind of shape, then it is respectively mounted in outer surface Upper safe outer ring, so as to greatly reduce the species specification of valve, moreover it is possible to realize a key to the valvular operation of institute, significantly Alleviate the operation sequence and burden of maintenance personal.

Above-described is only some embodiments of the present utility model.For the person of ordinary skill of the art, On the premise of not departing from the utility model and creating design, various modifications and improvements can be made, these belong to this practicality New protection domain.

Claims

A kind of 1. valve safety opening-and-closing device, it is characterised in that：It is mostly installed at valve open and close head on or valve valve rod On, it includes being set in the safe outer ring on the keying head or the stem outer circumference surface, the safe outer ring and the keying It can be relatively rotated between head or the valve rod, the valve rod or the end set for opening and closing head have irregularly-shaped hole or special-shaped boss, The upper surface of the irregularly-shaped hole and the special-shaped boss is below the upper surface of the safe outer ring.
2. valve safety opening-and-closing device as claimed in claim 1, it is characterised in that：The inner peripheral surface of the safe outer ring is set There is an annular groove A, it is described to open and close head or the outer surface of the valve rod is provided with annular corresponding with the annular groove location A Groove B, the annular groove A and the annular groove B form an annular space, if being filled with dry milling in the annular space Pearl.
3. valve safety opening-and-closing device as claimed in claim 2, it is characterised in that：The surface of the safe outer ring be provided with The through hole of the annular space connection.
4. valve safety opening-and-closing device as claimed in claim 1, it is characterised in that：The head that opens and closes is arranged on the valve rod Upper end, the safe outer ring are set in the outer surface of the keying head.