CN210068992U

CN210068992U - Manual flat valve

Info

Publication number: CN210068992U
Application number: CN201920575354.7U
Authority: CN
Inventors: 黄旭; 陈元庆; 陈尚雨; 曹兆明; 吴非; 戴陇宁
Original assignee: JIANGSU HENGDA MACHINERY MANUFACTURING Co Ltd
Current assignee: JIANGSU HENGDA MACHINERY MANUFACTURING Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-02-14
Anticipated expiration: 2029-04-25

Abstract

The utility model relates to a manual flat valve, which comprises a valve body, a first valve cover, a second valve cover, a valve seat, a first end cover, a second end cover, a sealing gasket, a valve rod combined packing, a valve block and a rotating component; the rotating assembly comprises a first valve rod, a second valve rod, a connecting sleeve, a threaded sleeve, a shaft sleeve, a hand wheel, a ball screw and a flashboard; the utility model discloses a ball stimulates the flashboard to shift up in order to cut off the material, greatly reduced open and close the moment of torsion, convenient operation only needs just alone to accomplish, and has improved closing speed, has guaranteed the safe normal clear of production process.

Description

Manual flat valve

Technical Field

The utility model relates to a manual wafer valve.

Background

The manual flat valve is mainly used on conveying pipelines and gas storage devices of natural gas, petroleum, chemical engineering, environmental protection, urban pipelines, fuel gas pipelines and the like and is used as opening and closing equipment; the existing manual flat valve is often required to be opened and closed under the condition of full pressure difference, the manual flat valve is mostly operated by rotating a hand wheel to directly drive a valve core to rotate so as to cut off materials, at least three persons are required to rotate together to close the valve in order to overcome the pressure of the materials in a pipe, the manual flat valve is inconvenient to use, the closing speed is low, the phenomenon of closing delay easily occurs, the adverse effect on the production process is further caused, and the manual flat valve is to be further improved.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a greatly reduced opens and close the moment of torsion, convenient operation has just improved closing speed, has guaranteed the manual wafer valve that production process safety normally goes on.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a manual flat valve comprises a valve body, a first valve cover, a second valve cover, a valve seat, a first end cover, a second end cover, a sealing gasket, valve rod combined packing, a valve block and a rotating assembly, and is characterized in that a through gate is formed between the middle parts of the upper side and the lower side of the valve body, through material channels which are symmetrical to each other and are positioned on the same horizontal straight line are formed in the left end and the right end of the valve body, and the two through material channels are orthogonal to and communicated with the through gate; the upper side and the lower side of the valve body are both fixed with a valve seat, the outer sides of the two valve seats are both outwards formed with a boss, a first end cover and a valve rod combined filler are embedded in one boss at the upper side, the valve rod combined filler is positioned at the inner side of the first end cover, the first valve cover is sleeved on one boss at the upper side and positioned at the outer sides of the first end cover and the valve rod combined filler, a second end cover and a sealing gasket are embedded in one boss at the lower side, the sealing gasket is positioned at the inner side of the second end cover, the second valve cover is sleeved on one boss at the lower side and positioned at the outer sides of the second end cover and the sealing gasket, the inner ends of the two penetrating material channels are respectively provided with a valve block which is symmetrically distributed, the center of each valve block is provided with a through hole, and the two through holes are respectively; the rotating assembly is arranged inside the valve body.

Preferably, the rotating assembly comprises a first valve rod, a second valve rod, a connecting sleeve, a threaded sleeve, a shaft sleeve, a hand wheel, a ball screw and a gate plate, the connecting sleeve is vertically and rotatably arranged inside the upper end of the first valve cover, the sleeve is arranged on the outer side above the first valve cover, the upper end of the connecting sleeve is fixed at the lower end of the sleeve, the lower end of the shaft sleeve is fixed at the upper end of the sleeve, and the hand wheel is sleeved and fixed at the upper end of the shaft sleeve; the threaded sleeve inlays and establishes in telescopic inside, the inside spiro union that alternates of threaded sleeve has the ball of vertical distribution, the upper end of ball inserts to be fixed inside the lower extreme of axle sleeve, the lower extreme of ball inserts to be fixed inside the upper end of adapter sleeve, the flashboard sets up between two valve blocks, the upper and lower both ends of flashboard are provided with vertical distribution and detachable first valve rod and second valve rod respectively.

Preferably, the outer end of the first valve rod penetrates upwards through the valve rod combined packing and the first end cover and is inserted and fixed in the lower end of the connecting sleeve.

Preferably, a transversely distributed T type groove has all been seted up at both ends about the flashboard, correspondingly, the upper end of the lower extreme second valve rod of first valve rod is formed with first T type head and second T type head respectively, first T type head and second T type head insert respectively in two T type grooves.

Preferably, the inside material hole of transversely distributing of having seted up of the upside of flashboard, the position in material hole all mutually supports with the position of two through-holes.

Preferably, the outer end of the second valve stem passes downwardly through the sealing gasket and the second end cap and projects into the interior of the second valve cap.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a ball stimulates the flashboard to shift up in order to cut off the material, greatly reduced open and close the moment of torsion, convenient operation only needs just alone to accomplish, and has improved closing speed, has guaranteed the safe normal clear of production process.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a sectional view of the shutter according to the present invention;

fig. 3 is a sectional structure view of the valve block of the present invention.

Detailed Description

As shown in fig. 1 to 3, a manual flat valve includes a valve body 6, a first valve cover 8, a second valve cover 17, a valve seat 7, a first end cover 15, a second end cover 16, a sealing gasket 1, a valve stem combined packing 4, a valve block 3 and a rotating assembly; a through gate 62 is arranged between the middle parts of the upper side and the lower side of the valve body 6, the left end and the right end of the valve body 6 are respectively provided with a through material channel 61 which is symmetrical with each other and is positioned on the same horizontal straight line, and the two through material channels 61 are both orthogonal to and communicated with the through gate 62; the upper side and the lower side of the valve body 6 are both fixed with a valve seat 7, the outer sides of the two valve seats 7 are both outwards formed with a boss 71, a first end cover 15 and a valve rod combined packing 4 are embedded in the boss 71 on the upper side, the valve rod combined packing 4 is positioned on the inner side of the first end cover 15, a first valve cover 8 is sleeved on the boss 71 on the upper side and positioned on the outer sides of the first end cover 15 and the valve rod combined packing 4, a second end cover 16 and a sealing gasket 1 are embedded in the boss 71 on the lower side, the sealing gasket 1 is positioned on the inner side of the second end cover 16, a second valve cover 17 is sleeved on the boss 71 on the lower side and positioned on the outer sides of the second end cover 16 and the sealing gasket 1, the inner ends of the two penetrating material channels 61 are both provided with valve blocks 3 which are symmetrically distributed, the center of each valve block 3 is provided with a through hole 31, and; the rotating assembly is arranged inside the valve body 6; the rotating assembly comprises a first valve rod 9, a second valve rod 18, a connecting sleeve 10, a sleeve 11, a threaded sleeve 12, a shaft sleeve 13, a hand wheel 14, a ball screw 5 and a flashboard 2, the connecting sleeve 10 is vertically and rotatably arranged inside the upper end of the first valve cover 8, the sleeve 11 is arranged on the outer side above the first valve cover 8, the upper end of the connecting sleeve 10 is fixed at the lower end of the sleeve 11, the lower end of the shaft sleeve 13 is fixed at the upper end of the sleeve 11, and the hand wheel 14 is fixedly sleeved on the upper end of the shaft sleeve 13; the threaded sleeve 12 is embedded in the sleeve 11, the ball screw 5 which is vertically distributed is inserted and screwed in the threaded sleeve 12, the upper end of the ball screw 5 is inserted and fixed in the lower end of the shaft sleeve 13, the lower end of the ball screw 5 is inserted and fixed in the upper end of the connecting sleeve 10, the gate plate 2 is arranged between the two valve blocks 3, the upper end and the lower end of the gate plate 2 are respectively provided with a first valve rod 9 and a second valve rod 18 which are vertically distributed and detachable, and the outer end of the first valve rod 9 upwards penetrates through the valve rod combined packing 4 and the first end cover 15 and is inserted and fixed in the lower end of the connecting sleeve 10; the upper end and the lower end of the flashboard 2 are respectively provided with a T-shaped groove 21 which is transversely distributed, correspondingly, the upper end of the second valve rod 18 at the lower end of the first valve rod 9 is respectively provided with a first T-shaped head 91 and a second T-shaped head 181, and the first T-shaped head 91 and the second T-shaped head 181 are respectively inserted into the two T-shaped grooves 21, so that the first valve rod 9 and the second valve rod 18 are detachably connected; the upper side of the gate plate 2 is internally provided with transversely distributed material holes 22, and the positions of the material holes 22 are matched with the positions of the two through holes 31; the outer end of the second valve stem 18 passes downwardly through the sealing gasket 1 and the second end cap 16 and projects into the interior of the second valve cap 17.

When in use: the material enters the valve body 6 from one of the through material channels 61, passes through the through hole 31 in one of the valve blocks 3 and the material hole 22 in the flashboard 2, passes through the through hole 31 in the other valve block 3 and is discharged from the other through material channel 61; the hand wheel 14 is held by hand and rotated, and then the shaft sleeve 13, the sleeve 11 and the connecting sleeve 10 drive the threaded sleeve 12 to rotate around the ball screw 5, so that the ball screw 5 is driven to slowly move upwards in the vertical direction by virtue of the threaded connection principle, and then the gate plate 2 is pulled to vertically move upwards by virtue of the first valve rod 9, so that two ends of the material hole 22 are respectively deviated upwards from the through holes 31 on the two valve blocks 3, and meanwhile, the lower side of the gate plate 2 is slowly moved upwards and separates the through holes 31 on the two valve blocks 3, so that the material is cut off, the outer end of the second valve rod 18 can synchronously move upwards along the second end cover 16 along with the upward movement of the gate plate 2, and the moving stability; the gasket 1 and the valve stem combined packing 4 ensure the sealing performance of the second valve stem 18 and the first valve stem 9 respectively when moving.

The manual flat valve is mainly used on conveying pipelines and gas storage devices of natural gas, petroleum, chemical engineering, environmental protection, urban pipelines, fuel gas pipelines and the like and is used as opening and closing equipment; the existing manual flat valve is often required to be opened and closed under the condition of full pressure difference, and mostly works in a mode of directly driving a valve core to rotate to cut off materials by rotating a hand wheel, in order to overcome the pressure of the materials in a pipe, at least three persons are required to rotate together to close the valve, so that the use is inconvenient, the closing speed is slow, the phenomenon of closing delay is easy to occur, and further, the adverse effect is caused to the production process; the utility model discloses a ball stimulates the flashboard to shift up in order to cut off the material, greatly reduced open and close the moment of torsion, convenient operation only needs just alone to accomplish, and has improved closing speed, has guaranteed the safe normal clear of production process.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A manual flat valve comprises a valve body, a first valve cover, a second valve cover, a valve seat, a first end cover, a second end cover, a sealing gasket, valve rod combined packing, a valve block and a rotating assembly, and is characterized in that a through gate is formed between the middle parts of the upper side and the lower side of the valve body, through material channels which are symmetrical to each other and are positioned on the same horizontal straight line are formed in the left end and the right end of the valve body, and the two through material channels are orthogonal to and communicated with the through gate; the upper side and the lower side of the valve body are both fixed with a valve seat, the outer sides of the two valve seats are both outwards formed with a boss, a first end cover and a valve rod combined filler are embedded in one boss at the upper side, the valve rod combined filler is positioned at the inner side of the first end cover, the first valve cover is sleeved on one boss at the upper side and positioned at the outer sides of the first end cover and the valve rod combined filler, a second end cover and a sealing gasket are embedded in one boss at the lower side, the sealing gasket is positioned at the inner side of the second end cover, the second valve cover is sleeved on one boss at the lower side and positioned at the outer sides of the second end cover and the sealing gasket, the inner ends of the two penetrating material channels are respectively provided with a valve block which is symmetrically distributed, the center of each valve block is provided with a through hole, and the two through holes are respectively; the rotating assembly is arranged inside the valve body.

2. The manual plate valve according to claim 1, wherein the rotating assembly comprises a first valve rod, a second valve rod, a connecting sleeve, a threaded sleeve, a shaft sleeve, a hand wheel, a ball screw and a gate plate, the connecting sleeve is vertically and rotatably arranged inside the upper end of the first valve cover, the sleeve is arranged outside the upper portion of the first valve cover, the upper end of the connecting sleeve is fixed at the lower end of the sleeve, the lower end of the shaft sleeve is fixed at the upper end of the sleeve, and the hand wheel is sleeved and fixed at the upper end of the shaft sleeve; the threaded sleeve inlays and establishes in telescopic inside, the inside spiro union that alternates of threaded sleeve has the ball of vertical distribution, the upper end of ball inserts to be fixed inside the lower extreme of axle sleeve, the lower extreme of ball inserts to be fixed inside the upper end of adapter sleeve, the flashboard sets up between two valve blocks, the upper and lower both ends of flashboard are provided with vertical distribution and detachable first valve rod and second valve rod respectively.

3. A manual plate valve according to claim 2 wherein the outer end of said first valve stem extends upwardly through the valve stem combination packing and the first end cap and is fixedly inserted within the lower end of the adapter sleeve.

4. The manual plate valve of claim 2, wherein the upper and lower ends of the gate plate are respectively formed with a T-shaped groove, and correspondingly, the lower end of the first stem and the upper end of the second stem are respectively formed with a first T-shaped head and a second T-shaped head, and the first T-shaped head and the second T-shaped head are respectively inserted into the two T-shaped grooves.

5. The manual plate valve of claim 2, wherein said shutter plate has laterally distributed material holes formed on an upper inner portion thereof, and the positions of said material holes and the positions of said two through holes are matched with each other.

6. A hand operated plate valve according to claim 2 wherein the outer end of said second valve stem extends downwardly through the sealing gasket and the second end cap and into the interior of the second valve cover.