CN220037502U - Double acting cock valve with fluoride lining - Google Patents

Abstract

The utility model provides a fluorine-lined double-acting plug valve which comprises a valve body, a plug body and a medium through hole, wherein a valve cavity is arranged in the valve body, the plug body is arranged in the valve cavity, the middle part of the plug body is provided with a plug body inlet and a plug body abutting port, the plug body inlet is sealed by a valve cover, the plug body abutting port is sealed by a bottom cover, a connecting rod extending out of the valve cover is arranged at one end, close to the plug body inlet, of the plug body, a first fluorine-lined layer is arranged on the outer wall of the plug body, the inner wall of the medium through hole and the outer wall of the connecting rod, second fluorine-lined layers are arranged on the inner wall of the valve body and flange surfaces at two sides of the valve body, and third fluorine-lined layers are arranged on the contact sides of the valve cover, the bottom cover and the valve body. The plug valve is simple and reasonable in design, and the fluorine lining layers are arranged at the positions, which are in contact with corrosive fluid, of the plug valve, so that the metal piece and the corrosive fluid can be isolated by the fluorine lining layers, corrosion of the corrosive fluid on the plug valve is effectively reduced, and the service life of the plug valve is prolonged.

Description

Double acting cock valve with fluoride lining

Technical Field

The utility model relates to a fluorine-lined double acting plug valve.

Background

The plug valve is a valve with simple structure, rapid opening and closing and smaller resistance, and the working principle is that the plug body of the plug valve rotates around the central line of the valve body, and the purpose of opening and closing is achieved by the corresponding relation between the through holes on the plug body and the through holes at the two ends of the valve body.

The existing plug valves are mostly made of metal materials, when the plug valves are used for controlling the circulation and the cutting-off of corrosive fluid for a long time, the cavity and the plug body of the plug valve are corroded by the corrosive fluid, so that the plug valve is damaged, the service life of the plug valve is reduced, and in view of the damage, improvement on the problem is needed to improve the service life of the plug valve.

Disclosure of Invention

Therefore, the utility model aims to provide the fluorine-lined double-acting plug valve which is reasonable in design and effectively prolongs the service life.

The utility model is realized by adopting the following scheme: the utility model provides a double acting cock of lining fluorine, includes the inside valve body that is provided with the valve pocket, sets up the cock body in the valve pocket inside, the middle part of cock body is provided with the medium through-hole, correspond the cock body on the valve body and be provided with cock body import, cock body and lean on the mouth, the cock body import is sealed through the valve gap, the cock body is supported and is leaned on the mouth to seal through the bottom, is provided with the connecting rod that runs through the valve gap and stretch out on the cock body near cock body import one end, all be provided with first lining fluorine layer on cock body outer wall, medium through-hole inner wall, the connecting rod outer wall, the inner wall and the both sides flange face of valve body all are equipped with the second lining fluorine layer, all be equipped with the third lining fluorine layer on the contact side of valve gap, bottom and valve body.

Further, the valve cover is provided with a double-acting operation mechanism, the valve cover comprises a cover plate, the cover plate is screwed on the plug body inlet, the upper end of the connecting rod penetrates through the cover plate, the middle part of the cover plate is provided with a rotary mounting seat, the double-acting operation mechanism comprises a valve rod, the valve rod is connected in the rotary mounting seat in a rotary manner, and the lower end of the valve rod extends out of the rotary mounting seat and is fixed on the connecting rod.

Further, the side wall of the rotary mounting seat is fixed on the cover plate through two oblique support rods which are bilaterally symmetrical.

Further, the upper end of the valve rod extends out of the rotary mounting seat, a hand wheel is arranged on the upper extending end of the valve rod, a connecting block is fixedly sleeved on the rod body between the rotary mounting seat and the end part of the connecting rod through a screw on the extending end of the lower portion of the valve rod, and an operation rod is inserted into the side part of the connecting block.

Further, one end side of the valve rod is a threaded section, the other end side of the valve rod is an optical axis section, the threaded section is in threaded connection with the rotary mounting seat, the connecting block is sleeved and fixed on the optical axis section, a containing opening is formed in the end portion of the connecting rod corresponding to the end portion of the optical axis section, the end portion of the optical axis section is fixed in the containing opening through a screw, the end portion of the threaded section extends out of the rotary mounting seat, and the hand wheel is mounted on the end portion of the threaded section.

Further, the rotary mounting seat comprises a vertical seat body, a vertical mounting hole is formed in the middle of the seat body, a valve rod nut is rotationally connected in the mounting hole, and the thread section is in threaded connection with the valve rod nut.

Further, an annular inner shoulder is arranged in the lower end of the mounting hole, an annular outer shoulder is arranged on the periphery of the valve rod nut, a plane bearing A is clamped between the annular outer shoulder and the annular inner shoulder, the upper end of the seat body is sealed through a bearing gland, a plane bearing B is clamped between the bearing gland and the annular outer shoulder, the upper end of the valve rod nut penetrates through the bearing gland to extend out, and a hand wheel is mounted at the extending end of the upper end of the valve rod nut.

Further, the upper end of the valve rod nut stretches out and is provided with an annular clamping shoulder, the hand wheel is fixed outside the upper end of the valve rod nut through the bolt sleeve and is abutted to the annular clamping shoulder, the upper end of the valve rod nut stretches out and is in threaded connection with a locking nut for locking the hand wheel, and the locking nut is abutted to the hand wheel.

Further, a locating rod is arranged at the lower part of the plug body, a sliding hole is formed in the middle of the bottom cover corresponding to the locating rod, a limiting shoulder is arranged in the plug body propping opening, and a gap for the plug body to move up and down is formed between the bottom of the plug body and the limiting shoulder.

Furthermore, the two sides of the valve cavity in the valve body are respectively provided with an input pipe section and an output pipe section, and the cross sections of the medium through hole, the input pipe section and the output pipe section are all circular.

Compared with the prior art, the utility model has the following beneficial effects: the design is simple reasonable, through all being provided with the lining fluorine layer on the plug valve with corrosive fluid contact's position, the lining fluorine layer can keep apart metalwork and corrosive fluid, effectively reduces corrosive fluid and corrodes the plug valve, improves the life of plug valve.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

As shown in fig. 1, the dual-action plug valve with fluorine lining comprises a valve body 1 with a valve cavity inside, and a plug body 2 arranged in the valve cavity, wherein a medium through hole 3 is arranged in the middle of the plug body, a plug body inlet 4 and a plug body leaning port 5 are arranged on the valve body corresponding to the plug body, the plug body inlet is sealed by a valve cover 10, the plug body leaning port is sealed by a bottom cover 11, a connecting rod 6 extending through the valve cover is arranged at one end of the plug body close to the plug body inlet, a first fluorine lining layer 7 is arranged on the outer wall of the plug body, the inner wall of the medium through hole and the outer wall of the connecting rod, a second fluorine lining layer 8 is arranged on the inner wall of the valve body and flange surfaces at two sides, a third fluorine lining layer 9 is arranged on the contact side of the valve cover, the bottom cover and the valve body, and the fluorine lining layer has strong corrosion resistance.

In the embodiment of the utility model, the lining fluorine layer is formed by arranging polytetrafluoroethylene resin (or a section bar is processed) on the inner wall of a steel or iron valve pressure-bearing part (the same method is applicable to the lining of various pressure vessels and pipeline accessories) or the outer surface of a valve inner part by adopting a mould pressing (or embedding) method.

In this embodiment, in order to reasonable in design, realize the rotation of cock body, be provided with double acting operation mechanism on the valve gap, the valve gap includes apron 12, and the apron spiro union is on the cock body import, the upper end of connecting rod runs through the apron, be provided with rotatory mount pad 13 on the apron middle part, double acting operation mechanism includes valve rod 14, the valve rod rotates to be connected in rotatory mount pad, and the lower extreme of valve rod stretches out rotatory mount pad and is fixed in on the connecting rod, obtains rotatoryly through the rotatory drive cock body of valve rod.

In this embodiment, for reasonable design, the side wall of the rotary mounting seat is fixed on the cover plate through two inclined support rods 15 which are symmetrical left and right.

In this embodiment, the upper end of the valve rod extends out of the rotary mounting seat, the upper extending end of the valve rod is provided with a hand wheel 34, the lower extending end of the valve rod is provided with a connecting block 16 fixedly sleeved on the rod body between the rotary mounting seat and the end of the connecting rod through a screw, the side part of the connecting block is provided with an operating rod 17 in an inserted manner, and the valve rod is rotated through the cooperation of the rotation of the hand wheel and the operating rod.

In this embodiment, in order to specifically realize the installation of the hand wheel, one end side of the valve rod is a threaded section 18, the other end side is an optical axis section 19, the threaded section is screwed in the rotary mounting seat, the connecting block is sleeved and fixed on the optical axis section, the end part of the connecting rod corresponding to the optical axis section is provided with a containing opening 20, the end part of the optical axis section is fixed in the containing opening through a screw or a bolt 21, the end part of the threaded section extends out of the rotary mounting seat, and the hand wheel is mounted on the end part of the threaded section.

In this embodiment, for reasonable in design, rotatory mount pad includes vertical pedestal, vertical mounting hole 22 has been seted up at the pedestal middle part, the mounting hole swivelling joint has valve rod nut 23, screw thread section spiro union is on the valve rod nut.

In this embodiment, for reasonable in design, make things convenient for the rotation of valve rod nut, be provided with annular interior shoulder 24 in the mounting hole lower extreme, be provided with annular outer shoulder 25 on the periphery of valve rod nut, it is equipped with plane bearing A26 to press from both sides between annular outer shoulder and the annular interior shoulder, the pedestal upper end is sealed through bearing gland 27, it is equipped with plane bearing B28 to press from both sides between bearing gland and the annular outer shoulder, the upper end of valve rod nut runs through bearing gland and stretches out, and the hand wheel is installed in the upper end of valve rod nut and stretches out the end, and rotatory through hand wheel rotation drive valve rod nut is driven under the inside screw thread of valve rod nut, and then the screw thread section of drive valve rod reciprocates, and then drives the valve rod and reciprocate, rotates the action bars to corresponding open position or closed position simultaneously, realizes opening and close of valve body.

In this embodiment, in order to realize the fixation of the hand wheel, the upper end of the valve rod nut extends out of the annular clamping shoulder 29, the hand wheel is fixed outside the upper end of the valve rod nut through the bolt sleeve and is abutted on the annular clamping shoulder, the upper end of the valve rod nut extends out of the end and is in threaded connection with a locking nut 30 for locking the hand wheel, and the locking nut abuts on the hand wheel.

In this embodiment, the lower part of the plug body is provided with a positioning rod 31, the middle part of the bottom cover is provided with a sliding hole 32 corresponding to the positioning rod, the positioning of the plug body is realized through the cooperation of the positioning rod and the sliding hole, a limit shoulder 33 is arranged in the abutting port of the plug body, a gap for the plug body to move up and down is arranged between the bottom of the plug body and the limit shoulder, and the gap is used for facilitating the up and down movement of the plug body.

In this embodiment, during the use, through rotatory hand wheel and removal action bars cooperation, realize the rotation of valve rod, and then realize the rotation of cock body, and then realize the intercommunication or the closure of the through-hole on the cock body and the valve body both ends through-hole, reach the purpose of opening and closing.

In this embodiment, in order to reasonable in design, the inside of valve body is equipped with input pipe section and output pipe section in the both sides of valve pocket intercommunication respectively, medium through-hole, the cross-section of input pipe section and the cross-section of output pipe section are circular form, aperture the same.

Any of the above-described embodiments of the present utility model disclosed herein, unless otherwise stated, if they disclose a numerical range, then the disclosed numerical range is the preferred numerical range, as will be appreciated by those of skill in the art: the preferred numerical ranges are merely those of the many possible numerical values where technical effects are more pronounced or representative. Since the numerical values are more and cannot be exhausted, only a part of the numerical values are disclosed to illustrate the technical scheme of the utility model, and the numerical values listed above should not limit the protection scope of the utility model.

If the terms "first," "second," etc. are used herein to define a part, those skilled in the art will recognize that: the use of "first" and "second" is used merely to facilitate distinguishing between components and not otherwise stated, and does not have a special meaning.

If the utility model discloses or relates to components or structures fixedly connected with each other, then unless otherwise stated, the fixed connection is understood as: detachably fixed connection (e.g. using bolts or screws) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).

In addition, the orientation or positional relationship indicated by the terms used to indicate positional relationships such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. applied to any of the above-described technical aspects of the present disclosure are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present patent, and do not indicate or imply that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present patent, and the terms used to indicate shapes applied to any of the above-described technical aspects of the present disclosure include shapes that are approximated, similar or close thereto unless otherwise stated.

Any part provided by the utility model can be assembled by a plurality of independent components, or can be manufactured by an integral forming process.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present utility model and are not limiting; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims (10)

1. The utility model provides a double acting cock of lining fluorine, its characterized in that, including the inside valve body that is provided with the valve pocket, set up the cock body in the valve pocket inside, the middle part of cock body is provided with the medium through-hole, correspond the cock body on the valve body and be provided with cock body import, cock body and lean on the mouth, the cock body import is sealed through the valve gap, the cock body is leaned on the mouth to be sealed through the bottom, is provided with the connecting rod that runs through the valve gap and stretches out on the cock body near cock body import one end, all be provided with first lining fluorine layer on cock body outer wall, medium through-hole inner wall, the connecting rod outer wall, the inner wall and both sides flange face of valve body all are equipped with the second lining fluorine layer, all there is the third lining fluorine layer on the contact side of valve gap, bottom and valve body.

2. The dual action plug valve of claim 1, wherein the valve cover comprises a cover plate, the cover plate is screwed on the plug body inlet, the upper end of the connecting rod penetrates through the cover plate, a rotary mounting seat is arranged in the middle of the cover plate, the dual action mechanism comprises a valve rod, the valve rod is connected in the rotary mounting seat in a rotary manner, and the lower end of the valve rod extends out of the rotary mounting seat and is fixed on the connecting rod.

3. The dual action plug valve of claim 2 wherein the side wall of the swivel mount is secured to the cover plate by two inclined support bars that are side to side symmetric.

4. The dual action plug valve of claim 2, wherein the upper end of the valve stem extends out of the rotary mounting seat, a hand wheel is mounted on the upper extending end of the valve stem, a connecting block is fixedly sleeved on the stem body between the rotary mounting seat and the end of the connecting rod at the lower extending end of the valve stem through a screw, and an operating rod is inserted into the side part of the connecting block.

5. The dual action plug valve of claim 4, wherein one end of the valve rod has a threaded section and the other end has an optical axis section, the threaded section is screwed into the rotary mounting seat, the connecting block is sleeved on the optical axis section, a receiving opening is formed in the end of the connecting rod corresponding to the end of the optical axis section, the end of the optical axis section is fixed in the receiving opening by a screw, the end of the threaded section extends out of the rotary mounting seat, and the hand wheel is mounted on the end of the threaded section.

6. The dual action plug valve of claim 5, wherein the rotary mounting base comprises a vertical base body, a vertical mounting hole is formed in the middle of the base body, a valve stem nut is rotatably connected in the mounting hole, and the threaded section is screwed on the valve stem nut.

7. The dual action plug valve of claim 6, wherein an annular inner shoulder is disposed in the lower end of the mounting hole, an annular outer shoulder is disposed on the outer circumference of the valve stem nut, a planar bearing a is sandwiched between the annular outer shoulder and the annular inner shoulder, the upper end of the housing is closed by a bearing gland, a planar bearing B is sandwiched between the bearing gland and the annular outer shoulder, the upper end of the valve stem nut extends through the bearing gland, and a hand wheel is mounted on the upper end extending end of the valve stem nut.

8. The dual action plug valve of claim 7, wherein the upper end of the valve stem nut extends beyond the upper end of the valve stem nut and is provided with an annular clamping shoulder, the hand wheel is fixed outside the upper end of the valve stem nut by a bolt sleeve and is abutted against the annular clamping shoulder, the upper end of the valve stem nut extends beyond the upper end of the valve stem nut and is screwed with a locking nut for locking the hand wheel, and the locking nut is abutted against the hand wheel.

9. The dual action plug valve of claim 1, wherein a positioning rod is disposed at the lower portion of the plug body, a sliding hole is disposed at the middle portion of the bottom cover corresponding to the positioning rod, a limit shoulder is disposed in the abutment opening of the plug body, and a gap for the plug body to move up and down is disposed between the bottom of the plug body and the limit shoulder.

10. The dual action plug valve of claim 1, wherein the valve body has an inlet section and an outlet section on both sides of the valve cavity, and the medium through hole, the inlet section and the outlet section are circular.