CN211398663U - Novel pneumatic type plastic-lined three-way ball valve - Google Patents

Abstract

The utility model discloses a novel pneumatic type lining plastic three-way ball valve, the structure of which comprises a valve body, a connector and a lining plastic layer, a sealing device is arranged between the top end of the valve ball and the middle part of the top end of the valve body, the valve ball is fixed with a valve rod through a fixture block, the upper part of the valve ball is sealed through a cushion layer, a thrust gasket, a rotating piece and a V-shaped ring are sealed between the valve body and the valve rod, the upper end of the valve rod is pressed through a gland by a sealing ring and is stabilized again by a fixing piece, and the effect of improving air tightness by arranging multiple interphase parts to reduce overflow probability is achieved; and set up connecting device in the valve body bottom, put into the indent on underframe top through putting into the piece in the middle of, universal ball in the middle of the fixed subassembly provides and rotates traction force and the protruding pole and contracts to flexible inslot wall with the protruding pole, and it can stabilize to put into movable groove inside until protruding pole and universal ball, has reached and has set up just to tear parts open in order to install and protect the beneficial effect of valve body.

Description

Novel pneumatic type plastic-lined three-way ball valve

Technical Field

The utility model belongs to the technical field of the ball valve, in particular to novel pneumatic type lining plastic three-way ball valve.

Background

Ball valves, which are produced in the 50 s of the 20 th century, have been rapidly developed into a main valve class along with the rapid development of scientific technology, the continuous improvement of production process and product structure of the ball valves, and the use of the ball valves is continuously rising year by year in countries with developed western industries;

the three-way ball valve is provided with a T shape and an L shape, the T shape can enable three orthogonal pipelines to be mutually communicated and cut off a third channel to play a role in flow dividing and converging, and the L shape can only be connected with two mutually orthogonal pipelines, cannot simultaneously keep the mutual communication of the third pipeline and only plays a role in distribution;

the actuator is an essential important component of an automatic control system. It is used to receive the control signal from the controller and change the size of the controlled medium to maintain the controlled variable at the required value or in certain range. The actuators can be divided into pneumatic, hydraulic and electric according to energy forms;

but the novel three-way ball valve in the prior art has the problems that the air tightness is not strong and the overflow possibility is increased in the using process; and when installing in buried pipeline, need to cut off the "welding footing" of original welding on the valve body, cause the installation inconvenient, even cause and destroy the valve because of the cutting.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, a novel pneumatic lining plastic three-way ball valve is provided so as to solve the problem that the overflow possibility is increased due to weak air tightness of the three-way ball valve in the using process; when the valve is installed on a buried pipeline, the welding feet which are originally welded on the valve body need to be cut off, so that the installation is inconvenient, even the problem that the valve is damaged due to the cutting is caused, the effect of improving the air tightness to reduce the overflow probability by arranging multiple interphase parts is realized, and the parts which are convenient to disassemble are additionally arranged

So as to facilitate the installation and protect the beneficial effects of the valve body.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a novel pneumatic lining plastic three-way ball valve, which comprises a valve body, a connector, a lining plastic layer, a connecting device, a sealing device, a valve ball and an actuator, wherein the left end and the right end and the front part of the valve body are respectively provided with the connector, the valve body is welded with the connector, the inner walls of the valve body and the connector are fixedly connected with the lining plastic layer, the middle part of the bottom end of the valve body is fixedly connected with the connecting device, the upper end inside the valve body is fixedly connected with the sealing device, the bottom end of the sealing device is fixedly connected with the valve ball, the middle part of the inner wall of the valve body is movably connected with the valve ball, the middle part of the top end of the sealing device is fixedly connected with the actuator, the connecting device comprises a bottom frame, a press groove, a first elastic piece, a bearing plate, an embedding block and a fixing component, the middle part of the top end of the bottom frame is provided, put into piece surface and indent inner wall swing joint, the bearing plate top with put into piece swing joint, the underframe with put into and be provided with fixed subassembly between the piece left and right ends, valve body bottom middle part with put into piece fixed connection.

Further, fixed subassembly includes flexible groove, second elastic component, nose bar, universal ball, activity groove and movable rod, flexible inslot side and second elastic component fixed connection, the second elastic component outside and nose bar fixed connection, the nose bar outside and universal ball bolted connection, activity inslot wall and movable rod surface swing joint, the nose bar surface outside and activity inslot wall swing joint, the activity groove sets up both ends about the underframe, both ends are provided with flexible groove respectively about putting into the piece.

Further, the sealing device comprises a valve rod, a clamping block, a cushion layer, a thrust gasket, a rotating piece, a V-shaped ring, a sealing ring, a gland and a fixing piece, the bottom end of the valve rod is fixedly connected with the clamping block, the cushion layer, the thrust gasket, the rotating piece and the V-shaped ring are sequentially arranged in the middle of the outer surface of the valve rod from bottom to top, the middle of the outer surface of the valve rod is fixedly connected with the rotating piece, the gland and the sealing ring are sequentially arranged at the upper end of the middle of the outer surface of the valve rod from top to bottom, the valve body, the gland and the sealing ring are attached and compressed, the fixing piece penetrates through the top end of the valve body and the two ends of the top and the bottom of the sealing ring, the valve body is fixedly connected with the gland through the fixing piece, the lower part of the outer surface of the valve rod is fixedly connected with the valve ball through a clamping block, and the top end of the valve rod is fixedly connected with the actuator.

Furthermore, the upper end of the inner wall of the pressure groove is in an inclined expansion shape from inside to outside.

Further, a rubber layer is arranged at the top end of the bearing plate, and the top end face of the rubber layer is rough.

Furthermore, first elastic component is provided with five groups to first elastic component is from left to right equidistance distribution in pressure-bearing plate bottom face.

Furthermore, a baffle ring is arranged on the outer side of the inner wall of the movable groove, limit rings are respectively arranged at the left end and the right end of the middle part of the outer surface of the movable rod, and the inner diameter of the baffle ring is smaller than the outer diameter of the limit ring by 6 mm.

Furthermore, the cushion layer is made of rubber.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1) the problem of this tee bend ball valve in the middle of the use gas tightness not strong and increase overflow possibility, through set up sealing device between valve ball top and valve body top middle part, the valve ball is fixed through fixture block and valve rod, and carry out upper portion by the bed course airtight, and the thrust gasket, it carries out the airtight of position between valve body and the valve rod to rotate piece and V type circle, and the valve rod upper end is compressed tightly and is adopted the mounting to stabilize once more through the gland by the sealing washer, reached through setting up multiple interphase part and improve the effect of gas tightness in order to reduce the overflow probability.

2) For solving when installing buried pipeline, need cut off "welding footing" of original welding on the valve body, cause the installation inconvenient, cause the problem of destroying the valve because of the cutting even, through setting up connecting device in the valve body bottom, put into in the middle of the indent on underframe top through putting into the piece, and contact the bearing plate and continuously impress, in the middle of this process, universal ball through in the middle of the fixed subassembly provides rotation traction force, the projecting bar contracts under the second elastic component effect and contracts to flexible inslot wall, when being in same water flat line with flexible groove up to movable groove, the projecting bar can be put into movable groove inside with universal ball and stabilize, reached and add and establish just tear open the beneficial effect of part so that installation and protection valve body.

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 the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the internal partial structure A of the present invention;

FIG. 4 is a schematic view of the connecting device of the present invention;

fig. 5 is a schematic structural view of the fixing assembly of the present invention;

in the figure: the valve comprises a valve body-1, a connector-2, a plastic lining layer-3, a connector-4, a sealing device-5, a valve ball-6, an actuator-7, a bottom frame-41, a pressure groove-42, a first elastic piece-43, a pressure bearing plate-44, an embedding block-45, a fixed component-46, a telescopic groove-461, a second elastic piece-462, a convex rod-463, a universal ball-464, a movable groove-465, a movable rod-466, a valve rod-51, a clamping block-52, a cushion layer-53, a thrust gasket-54, a rotating piece-55, a V-shaped ring-56, a sealing ring-57, a pressure cover-58 and a fixed piece-59.

Detailed Description

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides a novel pneumatic plastic-lined three-way ball valve: the valve comprises a valve body 1, a connector 2, a lining plastic layer 3, a connecting device 4, a sealing device 5, a valve ball 6 and an actuator 7, wherein the left end, the right end and the front part of the valve body 1 are respectively provided with the connector 2, the valve body 1 is welded with the connector 2, the inner walls of the valve body 1 and the connector 2 are fixedly connected with the lining plastic layer 3, the middle part of the bottom end of the valve body 1 is fixedly connected with the connecting device 4, the upper end inside the valve body 1 is fixedly connected with the sealing device 5, the bottom end of the sealing device 5 is fixedly connected with the valve ball 6, the middle part of the inner wall of the valve body 1 is movably connected with the valve ball 6, the middle part of the top end of the sealing device 5 is fixedly connected with the actuator 7, the connecting device 4 comprises a bottom frame 41, a pressing groove 42, a first elastic member 43, a pressure bearing plate 44, an embedding block 45 and a fixing assembly 46, the middle part of the top, the outer surface of the embedding block 45 is movably connected with the inner wall of the pressure groove 42, the top end of the pressure bearing plate 44 is movably connected with the embedding block 45, a fixing component 46 is arranged between the left end and the right end of the bottom frame 41 and the embedding block 45, and the middle part of the bottom end of the valve body 1 is fixedly connected with the embedding block 45.

The fixing assembly 46 includes a telescopic slot 461, a second elastic element 462, a convex rod 463, a universal ball 464, a movable slot 465 and a movable rod 466, the inner side of the telescopic slot 461 is fixedly connected with the second elastic element 462, the outer side of the second elastic element 462 is fixedly connected with the convex rod 463, the outer side of the convex rod 463 is connected with the universal ball 464 through a bolt, the inner wall of the movable slot 465 is movably connected with the outer surface of the movable rod 466, the outer surface of the convex rod 463 is movably connected with the inner wall of the movable slot 465, the movable slot 465 is arranged at the left end and the right end of the bottom frame 41, the telescopic slots 461 are respectively arranged at the left end and the right end of the insertion block 45, and the installation and the disassembly are facilitated by adopting the elastic fixing.

The sealing device 5 comprises a valve rod 51, a fixture block 52, a cushion layer 53, a thrust washer 54, a rotating piece 55, a V-shaped ring 56, a sealing ring 57, a gland 58 and a fixing piece 59, the bottom end of the valve rod 51 is fixedly connected with the fixture block 52, the cushion layer 53, the thrust washer 54, the rotating piece 55 and the V-shaped ring 56 are sequentially arranged in the middle of the outer surface of the valve rod 51 from bottom to top, the middle of the outer surface of the valve rod 51 is fixedly connected with the rotating piece 55, the gland 58 and the sealing ring 57 are sequentially arranged at the upper end of the middle of the outer surface of the valve rod 51 from top to bottom, the valve body 1, the gland 58 and the sealing ring 57 are attached and pressed tightly, the fixing piece 59 penetrates through the top end of the valve body 1 and the two ends of the top end and the bottom end of the gland 58 and the sealing ring 57, the, the thrust washer 54, the rotating piece 55, the V-shaped ring 56 and the sealing ring 57 are fixedly connected with the upper end inside the valve rod 51, the lower part of the outer surface of the valve rod 51 is fixedly connected with the valve ball 6 through the clamping block 52, the top end of the valve rod 51 is fixedly connected with the actuator 7, and the effect of improving air tightness and reducing overflow probability is achieved by arranging multiple interphase components.

Wherein, indent 42 inner wall upper end is the slope expansion form from inside to outside, according to the aforesaid increases the space, prevents to put into the touching.

Wherein, the top of the bearing plate 44 is provided with a rubber layer, and the top surface of the rubber layer is rough, thereby improving the friction force and the stability.

Wherein, first elastic component 43 is provided with five groups to first elastic component 43 distributes in bearing plate 44 bottom face from left to right equidistance, according to above-mentioned reasonable setting, improves and supports the balanced effect of power supply.

Wherein, the activity groove 465 inner wall outside is provided with keeps off the ring, and both ends are provided with the spacing ring respectively about the surface middle part of movable rod 466 to keep off the ring internal diameter and be less than the 6mm of spacing ring external diameter, keep off the ring according to the aforesaid and block with the spacing ring position, prevent to drop.

Wherein, the cushion layer 53 is made of rubber, has certain elasticity, and is wear-resistant.

The working principle is as follows: firstly, taking out the novel pneumatic lining plastic three-way ball valve and placing the ball valve at a proper position;

then, the connecting device 4 arranged at the bottom end of the valve body 1 is inserted into the pressing groove 42 at the top end of the bottom frame 41 through the insertion block 45 and contacts the pressure bearing plate 44 to be pressed in continuously, in the process, the rotating traction force is provided by the universal ball 464 in the fixed component 46, the male link 463 retracts to the inner wall of the telescopic slot 461 under the action of the second elastic element 462 until the movable slot 465 and the telescopic slot 461 are at the same horizontal line, the convex rod 463 and the universal ball 464 can be stably placed in the movable groove 465, the first elastic member 43 at the bottom end of the pressure bearing plate 44 provides an elastic supporting effect, the stability is increased, when the device is detached, the movable rod 466 is pushed by hand to move toward the movable groove 465 until it contacts the ball 464 to push it back into the telescopic groove 461, then the embedded block 45 is taken out of the pressure groove 42, so that the beneficial effect of additionally arranging a component which is convenient to disassemble so as to be convenient for installing and protecting the valve body can be achieved;

then, the connector 2 arranged on the outer side of the valve body 1 is used for fixing an external connecting pipe, when the valve is used, the actuator 7 is started to drive the valve rod 51 and the valve ball 6 at the sealing device 5 to rotate, so that the liquid outlet position at the connector 2 can be adjusted, and the lining plastic layers 3 arranged on the inner walls of the valve body 1 and the connector 2 provide corrosion resistance, slow scaling, are not easy to grow microorganisms, and prolong the service life;

finally, according to the sealing device 5 arranged between the top end of the valve ball 6 and the middle part of the top end of the valve body 1, the valve ball 6 is fixed with the valve rod 51 through the fixture block 52, the upper part of the valve ball is sealed through the cushion layer 53, the sealing of the position between the valve body 1 and the valve rod 51 is carried out through the thrust gasket 54, the rotating piece 55 and the V-shaped ring 56, the upper end of the valve rod 51 is pressed through the gland 58 through the sealing ring 57 and is stabilized again through the fixing piece 59, and the effect of improving air tightness and reducing overflow probability through arranging multiple interphase parts is achieved.

The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, and the supply also belongs to the common general knowledge in this field, and the utility model discloses mainly used protects mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

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 (7)

1. The utility model provides a novel pneumatic type lining plastic three-way ball valve, moulds layer (3), valve ball (6) and executor (7) including valve body (1), connector (2), lining, both ends and front portion are provided with connector (2) respectively about valve body (1) to valve body (1) and connector (2) welding, layer (3) fixed connection is moulded with the lining to valve body (1) and connector (2) inner wall, valve body (1) bottom middle part and connecting device (4) fixed connection, valve body (1) inside upper end and sealing device (5) fixed connection, sealing device (5) bottom and valve ball (6) fixed connection, valve body (1) inner wall middle part and valve ball (6) swing joint, sealing device (5) top middle part and executor (7) fixed connection;

the method is characterized in that: still include connecting device (4) and sealing device (5), connecting device (4) include underframe (41), indent (42), first elastic component (43), bearing plate (44), put into piece (45) and fixed subassembly (46), underframe (41) top middle part is provided with indent (42), indent (42) inner wall and first elastic component (43) fixed connection, first elastic component (43) top and bearing plate (44) fixed connection, put into piece (45) surface and indent (42) inner wall swing joint, bearing plate (44) top and put into piece (45) swing joint, underframe (41) and put into and be provided with fixed subassembly (46) between the piece (45) left and right sides both ends, valve body (1) bottom middle part with put into piece (45) fixed connection.

2. The novel pneumatic plastic-lined three-way ball valve as claimed in claim 1, wherein: the fixing component (46) comprises a telescopic groove (461), a second elastic piece (462), a convex rod (463), universal balls (464), a movable groove (465) and a movable rod (466), the inner side of the telescopic groove (461) is fixedly connected with the second elastic piece (462), the outer side of the second elastic piece (462) is fixedly connected with the convex rod (463), the outer side of the convex rod (463) is connected with the universal balls (464) through bolts, the inner wall of the movable groove (465) is movably connected with the outer surface of the movable rod (466), the outer surface of the convex rod (463) is movably connected with the inner wall of the movable groove (465), the movable groove (465) is arranged at the left end and the right end of the bottom frame (41), and the left end and the right end of the embedding block (45) are respectively provided with the telescopic groove (461).

3. The novel pneumatic plastic-lined three-way ball valve as claimed in claim 1, wherein: the sealing device (5) comprises a valve rod (51), a clamping block (52), a cushion layer (53), a thrust gasket (54), a rotating piece (55), a V-shaped ring (56), a sealing ring (57), a gland (58) and a fixing piece (59), wherein the bottom end of the valve rod (51) is fixedly connected with the clamping block (52), the cushion layer (53), the thrust gasket (54), the rotating piece (55) and the V-shaped ring (56) are sequentially arranged in the middle of the outer surface of the valve rod (51) from bottom to top, the middle of the outer surface of the valve rod (51) is fixedly connected with the rotating piece (55), the gland (58) and the sealing ring (57) are sequentially arranged at the upper end of the middle of the outer surface of the valve rod (51) from top to bottom, the valve body (1), the gland (58) and the sealing ring (57) are attached and pressed tightly, and the fixing piece, the valve body (1) is fixedly connected with the gland (58) through a fixing piece (59), the valve rod (51) penetrates through the middle of the top ends of the valve body (1) and the valve ball (6) at the same time, the valve rod (51) is fixedly connected with the valve body (1) through a rotating piece (55), the thrust gasket (54), the rotating piece (55), the V-shaped ring (56) and the sealing ring (57) are fixedly connected with the upper end of the inside of the valve rod (51), the lower part of the outer surface of the valve rod (51) is fixedly connected with the valve ball (6) through a clamping block (52), and the top end of the valve rod (51) is fixedly connected with the actuator (7.

4. The novel pneumatic plastic-lined three-way ball valve as claimed in claim 1, wherein: the upper end of the inner wall of the pressure groove (42) is in an inclined expanding shape from inside to outside.

5. The novel pneumatic plastic-lined three-way ball valve as claimed in claim 1, wherein: the top end of the bearing plate (44) is provided with a rubber layer, and the top end surface of the rubber layer is rough.

6. The novel pneumatic plastic-lined three-way ball valve as claimed in claim 1, wherein: the first elastic pieces (43) are provided with five groups, and the first elastic pieces (43) are equidistantly distributed on the bottom end face of the pressure bearing plate (44) from left to right.

7. The novel pneumatic plastic-lined three-way ball valve as claimed in claim 2, wherein: the outer side of the inner wall of the movable groove (465) is provided with a stop ring, the left end and the right end of the middle part of the outer surface of the movable rod (466) are respectively provided with a limit ring, and the inner diameter of the stop ring is smaller than the outer diameter of the limit ring by 6 mm.

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