CN109854778B

CN109854778B - Ball valve

Info

Publication number: CN109854778B
Application number: CN201910278104.1A
Authority: CN
Inventors: 金俊伟
Original assignee: Zhejiang Jinlong Copper Industry Co ltd
Current assignee: Zhejiang Jinlong Copper Industry Co ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-06-19
Anticipated expiration: 2039-04-09
Also published as: CN109854778A

Abstract

The invention provides a ball valve, which comprises a valve body, a valve ball, sealing rings, a valve rod and a back limiting nut, wherein the valve ball is arranged in the valve body, the upper end of the valve ball is connected with the valve rod, an inner octagonal loose joint cap is arranged in the valve body, the sealing rings are arranged on the left side and the right side in the valve body and are attached to the inner octagonal loose joint cap, the upper end of the valve rod is arranged on a handle, the handle is fixedly connected with the valve rod through the back limiting nut, a locking mechanism is arranged on the upper side surface of the valve body on the outer side of the handle, the valve rod is rotatably connected to the upper part of the valve body, and the valve rod is connected with the valve body through a sealing shaft: the leakproofness of valve rod when both having guaranteed the valve rod installation has simplified the manufacturing procedure of valve rod simultaneously to reduce the manufacturing cost of valve rod, when the handle was closed the valve body in addition, made the handle spacing in the arc wall, avoided the condition emergence of this device mistake opening.

Description

Ball valve

Technical Field

The invention relates to a ball valve, and belongs to the technical field of valves.

Background

The ball valve, the opening and closing piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels.

The Chinese patent for publication No. CN2453198Y discloses a leakage-proof straight pipe flange ball valve, which discloses that a thicker sealing filler and an O-shaped ring are arranged between a check block and a valve rod, and the existence of the O-shaped ring ensures that an O-shaped ring groove for installing the O-shaped ring is required to be arranged on the valve rod, thus increasing the processing procedure of the valve rod and further increasing the production cost of enterprises.

Disclosure of Invention

The invention aims to provide a ball valve.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a ball valve, moves back the nut including valve body, valve ball, sealing washer, valve rod and limit, the valve ball is installed in the valve body, and the valve ball upper end is connected with the valve rod, octagonal union cap in the installation in the valve body, the sealing washer is installed in the left and right sides in the valve body, and the sealing washer laminates mutually with octagonal union cap in, install at the handle on the valve rod, the handle moves back nut and valve rod fixed connection through the limit, set up locking mechanical system on the valve body in the handle outside to the side, the valve rod rotates to be connected on valve body upper portion, and the valve rod is connected with the valve body through sealed axle sleeve.

Furthermore, an octagonal nut is installed at the left end of the valve body, and an octagonal nut is installed at the right end of the valve body.

Furthermore, a protective sleeve is arranged on the outer surface of the handle, and a chloroprene rubber layer is adhered to the outer surface of the protective sleeve through viscose.

Further, locking mechanical system includes arc microscope carrier, arc wall, back splint, preceding spring, preceding recess, front splint, draw-in groove, back recess, back spring, support plate, lower spring, ball and accomodate the groove, the arc microscope carrier is installed in valve body up end left side, the arc wall is seted up on arc microscope carrier up end, back splint welding is at the back spring front end, preceding spring welding is on the preceding side in the recess in the front, preceding recess and back recess front and back symmetry are seted up on preceding side and trailing flank in the arc wall, the front splint welding is at the front spring rear end, the draw-in groove is seted up on handle left end downside, back spring welding is on the rear end face in the back recess, the support plate welding is in spring upper end down, ball swing joint is at support plate up end middle part, accomodate the groove and set up the terminal surface front portion under in the arc wall.

Furthermore, the left end of the handle is movably connected in the arc-shaped groove, and the circle center position of the arc-shaped groove is coincided with the circle center position of the valve rod.

Furthermore, the cross sections of the front clamping plate and the rear clamping plate are both arc-shaped, and the specifications of the front clamping plate and the rear clamping plate are the same.

Further, installation bull's eye ball one of back splint leading flank, installation bull's eye ball two on the front splint trailing flank, bull's eye ball one and bull's eye ball two all are equipped with more than three groups, and bull's eye ball one-class distance is arranged on the back splint leading flank more than three groups, more than three groups bull's eye ball two-class distance is arranged on the front splint trailing flank.

Furthermore, all install the guide block on year board left end face and the right-hand member face, two sets of the guide block is swing joint respectively in two sets of guide ways, and two sets of the guide way front and back symmetry is seted up before accomodating the inslot on terminal surface and the rear end face.

Furthermore, anti-slip lines are processed on the inner upper end face of the clamping groove, and the cross section of each anti-slip line is wavy.

The invention has the beneficial effects that:

1. the invention uses the sealing shaft sleeve to replace an O-shaped ring and an O-shaped ring groove, thereby not only ensuring the sealing performance of the valve rod during installation, but also simplifying the processing procedure of the valve rod, and further reducing the production cost of the valve rod.

2. When the valve body is closed by the handle, the handle is limited in the arc-shaped groove through the matching of the front clamping plate, the rear clamping plate and the balls, so that the device is prevented from being opened by mistake.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a conventional ball valve;

FIG. 2 is a schematic structural view of a ball valve according to the present invention;

FIG. 3 is a schematic perspective view of a locking mechanism in a ball valve according to the present invention;

FIG. 4 is a schematic cross-sectional front view of a locking mechanism in a ball valve according to the present invention;

FIG. 5 is a schematic diagram of a right side cross-sectional view of a locking mechanism in a ball valve according to the present invention;

FIG. 6 is a schematic structural view of one embodiment of a ball valve of the present invention;

FIG. 7 is a schematic top view of a locking mechanism in a ball valve of the present invention;

in the figure: 1-valve body, 2-octagonal nut, 3-inner octagonal loose joint cap, 4-valve ball, 5-sealing ring, 6-O-shaped ring, 7-valve rod, 8-retreat limiting nut, 9-handle, 10-sealing shaft sleeve, 11-locking mechanism, 111-arc carrying platform, 112-arc groove, 113-rear clamping plate, 114-front spring, 115-front groove, 116-front clamping plate, 117-clamping groove, 118-rear groove, 119-rear spring, 120-support plate, 121-lower spring, 122-ball and 123-accommodating groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1-7, the present invention provides a technical solution: a ball valve comprises a valve body 1, a valve ball 4, a sealing ring 5, a valve rod 7 and a limit back nut 8, wherein the valve ball 4 is arranged in the valve body 1, the upper end of the valve ball 4 is connected with the valve rod 7, an inner octagonal loose joint cap 3 is arranged in the valve body 1, the sealing ring 5 is arranged at the left side and the right side in the valve body 1, the sealing ring 5 is attached to the inner octagonal loose joint cap 3, the upper end of the valve rod 7 is arranged at a handle 9, the handle 9 is fixedly connected with the valve rod 7 through the limit back nut 8, the limit back nut 8 is designed to avoid the long-time use of a conventional nut, the looseness is easy to occur, the firmness when the handle 9 is fixedly arranged is ensured, a locking mechanism 11 is arranged on the upper side surface of the valve body 1 at the outer side of the handle 9, the valve rod 7 is rotatably connected to the upper part of the valve body 1, the valve rod 7 is connected with the valve body 1 through, and meanwhile, the O-shaped ring 6 is required to be installed in the O-shaped ring groove, so that the machining process of the valve rod 7 is reduced, the use amount of accessories is reduced, and the production cost of the valve rod 7 is reduced.

As an embodiment of the present invention: octagonal nut 2 is installed to 1 left end of valve body, and octagonal nut 2 is installed to 1 right-hand member of valve body, specifically, installs the connecting tube respectively at 1 left end of valve body and right-hand member, screws up two sets of octagonal nut 2 again, through two sets of octagonal nut 2 with connecting pipe and 1 high-speed joint of valve body, the connecting pipe of being convenient for and the fast assembly of valve body 1.

As an embodiment of the present invention: installation lag on the 9 surfaces of handle, through viscose paste chloroprene rubber layer on the lag surface, specifically, the interpolation of lag, protect handle 9, the condition of having avoided handle 9 to receive the rainwater corruption takes place, paste the interpolation on chloroprene rubber layer, protect the lag, chloroprene rubber's vulcanized rubber intensity is high, plasticity is good, elasticity is medium, oxytolerant and ozone aging resistance, and resistant oil, strong to many material adhesion, flame resistance and wearability are good, the gas permeability is little, can prolong the life of lag.

As an embodiment of the present invention: the locking mechanism 11 comprises an arc-shaped carrier 111, an arc-shaped groove 112, a rear clamp plate 113, a front spring 114, a front groove 115, a front clamp plate 116, a clamping groove 117, a rear groove 118, a rear spring 119, a carrier plate 120, a lower spring 121, balls 122 and a containing groove 123, the arc-shaped carrier 111 is installed on the left side of the upper end surface of the valve body 1, the arc-shaped carrier 111 is designed to be capable of fitting the radian of the upper end surface of the valve body 1, the installation area is reduced, and the rotation radian of the handle 9 is fitted to guide the rotation of the handle 9, the arc-shaped groove 112 is arranged on the upper end surface of the arc-shaped carrier 111, the rear clamp plate 113 is welded at the front end of the rear spring 119, the front spring 114 is welded on the front side surface in the front groove 115, the front groove 115 and the rear groove 118 are symmetrically arranged on the front side surface and the rear side surface in the arc-shaped groove 112, the front clamp plate 116 is welded at the rear end of the front, the support plate 120 is welded at the upper end of the lower spring 121, the ball 122 is movably connected to the middle of the upper end face of the support plate 120, the accommodating groove 123 is arranged at the front part of the lower end face in the arc-shaped groove 112, specifically, in the process of using the handle 9 to close the valve body 1, the left end of the handle 9 moves in the arc-shaped groove 112, the left end of the handle 9 simultaneously extrudes the front clamping plate 116 and the rear clamping plate 113, the front clamping plate 116 compresses the front spring 114, the rear clamping plate 113 compresses the rear spring 119, and the front clamping plate 116 and the rear clamping plate 113 are attached to the left end of the handle 9, so that the damping during the movement of the valve body 1 is increased, the handle 9 drives the clamping groove 117 to move, the clamping groove 117 is contacted with the ball 122, the ball 122 rotates under the action of friction force, the clamping groove 117 extrudes the support plate 120, the support plate 120 extrudes the lower spring 121, so that the, make ball 122 shift out draw-in groove 117, ball 122 connects handle 9 left end joint in arc wall 112, and then spacing with valve body 1, has avoided under the exogenic action, makes handle 9 rotate to drive valve rod 7 and rotate, thereby cause the condition emergence of valve body 1 mistake opening.

As an embodiment of the present invention: the left end of the handle 9 is movably connected in the arc-shaped groove 112, the circle center position of the arc-shaped groove 112 coincides with the circle center position of the valve rod 7, specifically, the left end of the handle 9 can move accurately in the arc-shaped groove 112, and the situation that the moving position of the left end of the handle 9 deviates is avoided.

As an embodiment of the present invention: the cross section of the front clamping plate 116 and the cross section of the rear clamping plate 113 are both arc-shaped, and the specifications of the front clamping plate 116 and the rear clamping plate 113 are the same, specifically, when the left end of the handle 9 contacts the front clamping plate 116 and the rear clamping plate 113, the front clamping plate 116 and the rear clamping plate 113 can be attached to the left end of the handle 9, the attaching area is increased, and the limiting stability of the left end of the handle 9 is facilitated.

As an embodiment of the present invention: the utility model discloses a back splint 113 front side installation bull's eye ball is first, installation bull's eye ball is two on the front splint 116 trailing flank, bull's eye ball is first and bull's eye ball is two all be equipped with more than three groups, bull's eye ball equidistance is arranged on back splint 113 leading flank more than three groups, bull's eye ball equidistance is arranged on front splint 116 trailing flank more than three groups, specifically, handle 9 left end removes and extrudees front splint 116 and back splint 113 simultaneously, handle 9 left end is when removing, with bull's eye ball one and the contact of bull's eye ball two, and drive bull's eye ball one and bull's eye ball two and rotate, the frictional force between handle 9 left end and back splint 113 and front splint 116 has been reduced, be convenient for the removal of handle 9 left end.

Please refer to fig. 6, which illustrates an embodiment of the present invention: the guide blocks are arranged on the left end face and the right end face of the support plate 120, the two groups of guide blocks are movably connected in the two groups of guide grooves respectively, the two groups of guide grooves are symmetrically arranged in the accommodating groove 123 in a front-back mode on the front end face and the rear end face, specifically, the support plate 120 is extruded by the left end of the handle 9, the support plate 120 moves downwards in the accommodating groove 123, the support plate 120 moves downwards and simultaneously drives the two groups of guide blocks to move downwards in the two groups of guide grooves, and therefore the guidance performance of the support plate 120 during movement is improved.

As an embodiment of the present invention: the upper end face in the clamping groove 117 is provided with anti-slip lines, the cross section of each anti-slip line is wavy, specifically, the friction force between the clamping groove 117 and the ball 122 is increased, and the stability of the left end of the handle 9 in positioning is further improved.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a ball valve, includes that valve body, valve ball, sealing washer, valve rod and limit move back the nut, its characterized in that: the valve ball is arranged in the valve body, the upper end of the valve ball is connected with the valve rod, an inner octagonal loose joint cap is arranged in the valve body, the sealing rings are arranged on the left side and the right side in the valve body and are attached to the inner octagonal loose joint cap, the upper end of the valve rod is arranged on the handle, the handle is fixedly connected with the valve rod through a back limiting nut, a locking mechanism is arranged on the upper side face of the valve body on the outer side of the handle, the valve rod is rotatably connected to the upper portion of the valve body and is connected with the valve body through a sealing shaft sleeve, the locking mechanism comprises an arc-shaped carrying platform, an arc-shaped groove, a rear clamping plate, a front groove, a front clamping groove, a rear spring, a carrying plate, a lower spring, a ball and a containing groove, the arc-shaped carrying platform is arranged on the left side of the upper end face of the valve body, the rear clamping plate is, preceding recess and back recess front and back symmetry are seted up in the arc on leading flank and trailing flank, the front splint welding is spring rear end in the front, the draw-in groove is seted up on handle left end downside, back spring welding is on the rear end face in the back recess, the support plate welding is spring upper end down, ball swing joint is in support plate up end middle part, it sets up terminal surface front portion down in the arc to accomodate the groove.

2. The ball valve according to claim 1, wherein: an octagonal nut is installed at the left end of the valve body, and an octagonal nut is installed at the right end of the valve body.

3. The ball valve according to claim 1, wherein: the handle is characterized in that a protective sleeve is arranged on the outer surface of the handle, and a chloroprene rubber layer is adhered to the outer surface of the protective sleeve through viscose.

4. The ball valve according to claim 1, wherein: the left end of the handle is movably connected in the arc-shaped groove, and the circle center position of the arc-shaped groove is coincided with the circle center position of the valve rod.

5. The ball valve according to claim 1, wherein: the cross sections of the front clamping plate and the rear clamping plate are arc-shaped, and the specifications of the front clamping plate and the rear clamping plate are the same.

6. The ball valve according to claim 1, wherein: the utility model discloses a back splint trailing flank installation bulleye ball, back splint leading flank is last to install bulleye ball two, bulleye ball one and bulleye ball two all are equipped with more than three groups, and more than three groups bulleye ball one-class distance is arranged on the back splint leading flank, more than three groups bulleye ball two-class distance is arranged on the front splint trailing flank.

7. The ball valve according to claim 1, wherein: all install the guide block on support plate left end face and the right-hand member face, it is two sets of the guide block swing joint is respectively in two sets of guide slots, and is two sets of the guide slot longitudinal symmetry is seted up before accomodating the inslot on terminal surface and the rear end face.

8. The ball valve according to claim 1, wherein: and anti-skid lines are processed on the inner upper end surface of the clamping groove, and the cross sections of the anti-skid lines are wavy.