CN209026220U - A kind of stop valve for pressure gauge assembly of guard against theft oil - Google Patents

Abstract

It is disclosed by the utility model to belong to hydralic pressure gauge shut-off valve technical field, the stop valve for pressure gauge assembly of specially a kind of guard against theft oil includes valve body, the left end of the valve body is equipped with integrally formed pipeline connection port, the right end of the valve body is equipped with integrally formed pressure gauge connector, pass through the hexagonal groove in the top of valve rod is arranged, and the pressure relief opening being connected with liquid chamber is set on the right side of valve body, allow to rotate using outer hexagonal spanner band ovable valve stem, to the folding of control valve, the handwheel for avoiding current stop valve for pressure gauge is generally directly installed on valve rod, so that pressure gauge can also arbitrarily be unloaded by stealing crude oil person, then rotation handwheel opens shut-off valve, from a large amount of stolen from the hickey of installation pressure gauge, the folding of pressure relief opening can be controlled by the height of rotation valve rod adjusting spool simultaneously, realize the pressure release to oil pipe, So that shut-off valve there is anti-theft function to have decompression function again, the functionality then sent out is improved.

Description

A kind of stop valve for pressure gauge assembly of guard against theft oil

Technical field

It is disclosed by the utility model to belong to hydralic pressure gauge shut-off valve technical field, the pressure gauge cut-off of specially a kind of guard against theft oil Valve assembly.

Background technique

Shut-off valve is also pipe valve, is a kind of most popular valve, and why very popular it is, is due to being opened and closed Frictional force is small between sealing surface in journey, relatively durable, and Lift is little, manufacture be easy, it is easy to maintenance, be applicable not only in it is low Pressure, and it is suitable for high pressure.The closure principle of shut-off valve is, by valve stem pressure, to keep valve clack sealing surface tight with sealing surface of seat Closely connected conjunction prevents flow of media, and the opening and closing element of shut-off valve is the flap of stopper, and sealing surface is in plane or the conical surface, and flap is along valve seat Center line it is for linear motion.The forms of motion of valve rod, (adopted name: dark bar), also there is lifting rotation rod-type, (adopted name: Rising stem (RS.)) shut-off valve refers to the valve that closure member (flap) is moved along valve seat center line.According to this mobile form of flap, valve seat The variation of port be with flap stroke direct proportionality, manometer type instrument valve have it is easy for assemble or unload, connection fastening, Be conducive to fire prevention, the advantages that explosion-proof and voltage endurance capability is high, favorable sealing property, be power station, oil refining, chemical plant installations and instrument measurement The valve of the advanced connection type of one of pipeline, though the handwheel of current stop valve for pressure gauge is generally directly installed on valve rod It is very convenient when right operator's oil recovery sample, but there is very big hidden danger, to loafing about without a decent occupation and steal crude oil person leaves opportunity, They can arbitrarily unload pressure gauge, then rotate handwheel and open shut-off valve, largely steal from the hickey of installation pressure gauge Oil, while current stop valve for pressure gauge does not have decompression function, so that relief valve is installed on the oil pipeline also needed, thus The installation cost of oil pipeline is increased, for this purpose, the stop valve for pressure gauge assembly we have proposed a kind of guard against theft oil comes into operation, To solve the above problems.

Utility model content

The purpose of this utility model is to provide a kind of stop valve for pressure gauge assemblies of guard against theft oil, to solve above-mentioned background skill Current stop valve for pressure gauge does not have decompression function and guard against theft oil function while proposition in art, to cause current pressure The functional lower problem of power table shut-off valve.

To achieve the above object, the utility model provides the following technical solutions: a kind of stop valve for pressure gauge of guard against theft oil is total At, including valve body, equipped with integrally formed pipeline connection port, the right end of the valve body, which is equipped with, to be integrally formed for the left end of the valve body Pressure gauge connector, the inner cavity of the valve body is equipped with integrally formed liquid chamber, the pipeline connection port and pressure gauge connector It is connected with the inner cavity of liquid chamber, the inner cavity of the liquid chamber is equipped with matched spool, and the top of the spool is fixed to be connected It is connected to valve rod, for the valve rod through the top of valve body, the top of the valve body is equipped with integrally formed fixture nut, described solid Determine nut to connect with threaded stem, the top of the valve body is equipped with integrally formed valve chamber, and the top of the valve rod is equipped with one Molding fixed block, the top of the fixed block are equipped with integrally formed interior hexagonal groove, in the top of the interior hexagonal groove Chamber is connected with outer hexagonal spanner, is equipped with integrally formed pressure relief opening, the pressure relief opening and liquid chamber phase on the right side of the top of the valve body Connection.

Preferably, the top of the valve chamber left side wall is equipped with integrally formed closing piece, and the left side top of the valve chamber rotates It is connected with valve deck compatible with valve chamber, the left end of the valve deck is equipped with integrally formed second closing piece, the closing piece and second The top of closing piece offers integrally formed lockhole.

Preferably, the outer hexagonal spanner is made of outer-hexagonal nut and regulation handle, the outer-hexagonal nut and interior six Angle groove is adapted.

Preferably, the distance between left end liquid mouth of the top of the liquid chamber and pressure relief opening is greater than the height of spool, described The height of spool is greater than the diameter of the left end liquid mouth of pressure gauge connector.

Preferably, the left end of the valve body is equipped with integrally formed connecting flange, and the inner cavity top of the pressure relief opening is equipped with Matched dust plug

Compared with prior art, the utility model has the beneficial effects that by the hexagonal groove in the top of valve rod is arranged, And the pressure relief opening being connected with liquid chamber is set on the right side of valve body, allow to rotate using outer hexagonal spanner band ovable valve stem, from And the folding of control valve, the handwheel for avoiding current stop valve for pressure gauge are generally directly installed on valve rod, so that stealing Crude oil person can also arbitrarily unload pressure gauge, then rotate handwheel and open shut-off valve, big from the hickey of installation pressure gauge Stolen is measured, while the folding of pressure relief opening can be controlled by the height of rotation valve rod adjusting spool, the pressure release to oil pipe is realized, makes Obtaining shut-off valve there is anti-theft function to have decompression function again, improve the functionality of shut-off valve.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model outer hexagonal spanner structural schematic diagram；

Fig. 3 is the utility model valve cover structure schematic diagram.

In figure: 1 valve body, 11 liquid chambers, 12 pipeline connection ports, 13 pressure gauge connectors, 14 connecting flanges, 2 valve rods, 21 are fixed Block, hexagonal groove, 3 spools, 4 pressure relief openings, 41 dust plugs, 5 valve chambers, 51 closing pieces, 6 valve decks, 61 second closing pieces, 62 lockholes, 7 in 22 Outer hexagonal spanner, 71 regulation handles, 72 outer-hexagonal nuts, 8 fixture nuts.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of stop valve for pressure gauge assembly of guard against theft oil, Including valve body 1, the left end of the valve body 1 is equipped with integrally formed pipeline connection port 12, the right end of the valve body 1 be equipped with one at The inner cavity of the pressure gauge connector 13 of type, the valve body 1 is equipped with integrally formed liquid chamber 11, the pipeline connection port 12 and pressure Table connector 13 is connected with the inner cavity of liquid chamber 11, and the inner cavity of the liquid chamber 11 is equipped with matched spool 3, the valve The top of core 3 is fixedly connected with valve rod 2, the valve rod 2 through the top of valve body 1, the top of the valve body 1 be equipped with one at The fixture nut 8 of type, the fixture nut 8 are threadedly coupled with valve rod 2, and the top of the valve body 1 is equipped with integrally formed valve chamber 5, the top of the valve rod 2 is equipped with integrally formed fixed block 21, and the top of the fixed block 21 is equipped with six in integrally formed Angle groove 22, the top inner cavity of the interior hexagonal groove 22 are connected with outer hexagonal spanner 7, are equipped on the right side of the top of the valve body 1 Integrally formed pressure relief opening 4, the pressure relief opening 4 are connected with liquid chamber 11.

Wherein, the top of 5 left side wall of valve chamber is equipped with integrally formed closing piece 51, and the left side top of the valve chamber 5 turns Dynamic to be connected with valve deck 6 compatible with valve chamber 5, the left end of the valve deck 6 is equipped with integrally formed second closing piece 61, the closing piece 51 and second the top of closing piece 61 offer integrally formed lockhole 62, allow to closing piece 51 and the second closing piece using lock 61 lockings, avoid other staff from arbitrarily turning valve rod 2, the outer hexagonal spanner 7 is by outer-hexagonal nut 72 and 71 groups of regulation handle At the outer-hexagonal nut 72 is adapted with interior hexagonal groove 22, is allowed when rotating regulation handle 71 with 2 turns of ovable valve stem Dynamic, to realize the adjusting to 3 height of spool, the top of the liquid chamber 11 and the distance between the left end liquid mouth of pressure relief opening 4 are big In the height of spool 3, the height of the spool 3 is greater than the diameter of the left end liquid mouth of pressure gauge connector 13, so that spool 3 moves To liquid chamber 11 top when, pressure relief opening 4 is opened, to carry out pressure release to oil pipeline, the left end of the valve body 1 is equipped with one The inner cavity top of body formed connecting flange 14, the pressure relief opening 4 is equipped with matched dust plug 41.

Working principle: the oil pipe for surveying pressure will be needed to connect with pipeline connection port 12, pressure gauge is then mounted on pressure gauge At connector 13, when needing to carry out oil pipe to survey pressure, the outer-hexagonal nut 72 of 7 bottom end of outer hexagonal spanner can be inserted into interior six The inner cavity of angle groove 22 then rotates outer hexagonal spanner 7, to rotate with ovable valve stem 2, while moving upwards, makes with movable valve plug 3 The top that spool 3 moves to 13 left end liquid mouth of pressure gauge connector is obtained, while the oil stream in oil pipe enters pressure gauge connector 13 Inner cavity, so that the pressure sensitive end of pressure gauge carries out survey pressure to oil pipe by the extruding to oil, to realize, when the pressure in oil pipe When power is excessive, dust plug 41 can be taken out, rotation outer hexagonal spanner 7 is then continued to, so that the bottom end of spool 3 moves to pressure relief opening The top of 4 left side liquid mouths, so that pressure relief opening 4 is connected with pipeline connection port 12, so that the pressure release to oil pipe is realized, in pressure release Cheng Zhongke observes the pressure index on pressure gauge in real time, so that the pressure size in oil pipe is adjusted to specified pressure numerical value, keeps away Conventional pressure table is exempted from and has not had decompression function, after the completion of surveying pressure or pressure release, can be reversed and turn outer hexagonal spanner 7, so that valve Core 3 moves downward, so that pressure gauge connector 13 be blocked, avoids pressure gauge from continuing to survey pressure to oil pipe, then by outer-hexagonal Spanner 7 takes out from fixed block 21, then covers valve deck 6 and closes, and is locking closing piece 51 and the second closing piece 61 using lock, is avoiding The handwheel of current stop valve for pressure gauge is generally directly installed on valve rod 2, so that pushing can also arbitrarily be unloaded by stealing crude oil person Then power table rotates handwheel and opens shut-off valve, from a large amount of stolen from the hickey of installation pressure gauge.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of stop valve for pressure gauge assembly of guard against theft oil, including valve body (1), it is characterised in that: the left end of the valve body (1) is set Have integrally formed pipeline connection port (12), the right end of the valve body (1) is equipped with integrally formed pressure gauge connector (13), institute The inner cavity for stating valve body (1) is equipped with integrally formed liquid chamber (11), and the pipeline connection port (12) and pressure gauge connector (13) are equal It is connected with the inner cavity of liquid chamber (11), the inner cavity of the liquid chamber (11) is equipped with matched spool (3), the spool (3) Top be fixedly connected with valve rod (2), through the top of valve body (1), the top of the valve body (1) is equipped with the valve rod (2) Integrally formed fixture nut (8), the fixture nut (8) are threadedly coupled with valve rod (2), and the top of the valve body (1) is equipped with The top of integrally formed valve chamber (5), the valve rod (2) is equipped with integrally formed fixed block (21), the fixed block (21) Top is equipped with integrally formed interior hexagonal groove (22), and the top inner cavity of the interior hexagonal groove (22) is connected with outer hexagonal spanner (7), integrally formed pressure relief opening (4) are equipped on the right side of the top of the valve body (1), the pressure relief opening (4) is connected with liquid chamber (11) It is logical.

2. a kind of stop valve for pressure gauge assembly of guard against theft oil according to claim 1, it is characterised in that: the valve chamber (5) The top of left side wall is equipped with integrally formed closing piece (51), and the left side top of the valve chamber (5) is rotatably connected to and valve chamber (5) phase The left end of the valve deck (6) of adaptation, the valve deck (6) is equipped with integrally formed second closing piece (61), the closing piece (51) and second The top of closing piece (61) offers integrally formed lockhole (62).

3. a kind of stop valve for pressure gauge assembly of guard against theft oil according to claim 1, it is characterised in that: the outer-hexagonal is pulled Hand (7) is made of outer-hexagonal nut (72) and regulation handle (71), the outer-hexagonal nut (72) and interior hexagonal groove (22) phase Adaptation.

4. a kind of stop valve for pressure gauge assembly of guard against theft oil according to claim 1, it is characterised in that: the liquid chamber (11) Top and the distance between the left end liquid mouth of pressure relief opening (4) be greater than the height of spool (3), the height of the spool (3) is greater than The diameter of the left end liquid mouth of pressure gauge connector (13).

5. a kind of stop valve for pressure gauge assembly of guard against theft oil according to claim 1, it is characterised in that: the valve body (1) Left end be equipped with integrally formed connecting flange (14), the inner cavity top of the pressure relief opening (4) is equipped with matched dust-proof It fills in (41).