CN211449738U - Flange formula ball valve with frostproofing function - Google Patents
Flange formula ball valve with frostproofing function Download PDFInfo
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- CN211449738U CN211449738U CN202020112988.1U CN202020112988U CN211449738U CN 211449738 U CN211449738 U CN 211449738U CN 202020112988 U CN202020112988 U CN 202020112988U CN 211449738 U CN211449738 U CN 211449738U
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Abstract
The utility model discloses a flange formula ball valve with function of preventing frostbite, its structure includes valve body, connecting pipe and flange, the utility model discloses have following beneficial effect, through set up drain respectively in valve body bottom two parts about, rotate through the hand and compress tightly the lid, can open in second solid fixed ring department, take out the conical head on inserted bar top in the slot department of awl mouth inner wall lower part again can, will discharge the water that concentrates in the recess, reached through adopting the mode installation of compressing tightly the connection so that the operation is drained the frostproofing beneficial effect; and set up cleaning device in the valve body right part, rotate fixed lid through the hand and can take off it in first solid fixed ring department, the outside water receiving pipe of rethread is connected with hollow tube top department, and the enclosing ring is grabbed by the hand again and the clearance brush that can drive the hollow tube lower part brushes at the filter screen and moves and can clear up and filter the foul, and the exhaust water in water hole can carry out the cleaning operation, has reached and has set up outer brush part so that the beneficial effect of clearance in the valve in additional.
Description
Technical Field
The utility model belongs to the technical field of the ball valve, in particular to flange formula ball valve with function prevents frostbite.
Background
Ball valves, which are produced in the 50 s of the 20 th century, have been rapidly developed into a main valve class in short 40 years along with rapid development of scientific technology and continuous improvement of production process and product structure, and are continuously increasing year by year in countries with developed western industries;
ball valves are generally widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and have a very important position in national economy;
the ball valve, the opening and closing piece (spheroid) is driven by the valve rod, and the valve of rotary motion is made to the duplex winding ball valve axis, but the operation of draining of this novel ball valve of prior art when preventing frostbite winter is convenient inadequately to it is inconvenient inadequately to carry out the operation of clearance in the valve.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome the prior art not enough, provide a flange formula ball valve with function of preventing frostbite now to solve the operation of draining of this ball valve when preventing frostbite winter convenient inadequately, and carry out the operation of clearance in the valve convenient problem inadequately, through adopting the mode installation that compresses tightly the connection so that the operation drains frostbite beneficial effect, and add the beneficial effect of establishing outer brush part so that clearance in the valve.
(II) technical scheme
The utility model discloses a following technical scheme realizes: the utility model provides a flange type ball valve with an anti-freezing function, which comprises,
a valve body;
the middle parts of the left end and the right end of the valve body are respectively welded with the connecting pipe, and the outer side of the connecting pipe is welded with the flange;
the left end and the right end of the middle part of the outer surface of the valve body are fixedly connected with the stabilizing assembly;
the middle part of the top end of the valve body is welded with the upper seal assembly, the middle section inside the upper seal assembly is movably connected with the valve rod, the top end of the valve rod is fixedly inserted with the rotating rod, the bottom end of the valve rod is fixedly inserted with the ball body,
the left end and the right end of the inner wall of the valve body are respectively fixedly connected with the contact gasket, and the left end and the right end of the ball body are respectively movably connected with the contact gasket;
the middle part of the bottom end of the valve body is fixedly connected with the lower sealing assembly, and the middle part of the top end of the lower sealing assembly is fixedly connected with the ball body;
the right part of the valve body is fixedly connected with the cleaning device;
the left part and the right part of the bottom end of the valve body are respectively provided with a liquid drainage device.
Further, the cleaning device comprises a first fixing ring, a fixing cover, a first cushion layer, a second cushion layer, a hollow pipe, a surrounding ring, a batten, water holes, a cleaning brush and a filter screen, wherein the middle part of the outer surface of the first fixing ring is in threaded connection with the inner wall of the fixing cover, the top end of the inner wall of the fixing cover is bonded with the first cushion layer, the second cushion layer is arranged at the lower part of the outer surface of the first fixing ring, the top end of the second cushion layer is movably connected with the fixing cover, the upper part of the outer surface of the hollow pipe is fixedly connected with the surrounding ring, the surrounding ring is arranged at the right part of the top end of the valve body, the lower part of the left end of the hollow pipe is fixedly connected with the batten, the water holes are arranged at the left end of the hollow pipe and the left end of the batten, the inside of the hollow pipe is communicated with the outer side of the left end of the batten through, the hollow pipe penetrates through the right part of the top end of the valve body, the valve body is movably connected with the middle part of the outer surface of the hollow pipe, and the right part of the inner wall of the valve body is fixedly connected with the filter screen.
Further, drain includes slot, awl mouth, inserted bar, conical head, the solid fixed ring of second, compresses tightly lid and recess, slot inner wall upper end is provided with the awl mouth, inserted bar top and conical head fixed connection, conical mouth inner wall and conical head swing joint, inserted bar and conical head all with slot swing joint, the periphery of awl mouth bottom and second fixed ring fixed connection, the solid fixed ring surface lower part of second with compress tightly and cover inner wall upper end threaded connection, the recess sets up respectively in two parts about valve body inner wall bottom, two parts all are provided with slot and awl mouth about the valve body bottom.
Further, the subassembly that stabilizes includes first annular subassembly, threaded rod and second annular subassembly, both ends respectively with second annular subassembly and first annular subassembly fixed connection about valve body surface middle part, the component part appearance and the size homogeneous phase of second annular subassembly and first annular subassembly are the same, the threaded rod runs through both ends about second annular subassembly and first annular subassembly simultaneously to second annular subassembly and first annular subassembly all pass through nut and threaded rod fixed connection.
Further, first annular subassembly is including solid fixed ring and lug, the lug is provided with four groups and its equidistance distributes in solid fixed ring surface middle part, gu fixed ring and lug fixed connection, both ends respectively with gu fixed ring fixed connection about valve body surface middle part, both ends about the lug are run through simultaneously to the lug passes through nut and threaded rod fixed connection.
Further, go up close subassembly and include convex seat, mechanical seal, asbestos layer, O type sealing washer and first bearing, the convex seat inner wall has set gradually mechanical seal, asbestos layer, O type sealing washer and first bearing from top to bottom to mechanical seal, asbestos layer, O type sealing washer and first bearing between laminate each other and compress tightly, mechanical seal and first bearing respectively with convex seat fixed connection, valve body top middle part and convex seat welding, the valve rod runs through mechanical seal, asbestos layer, O type sealing washer and first bearing top end both ends middle part simultaneously to mechanical seal and first bearing are pegged graft with the valve rod is fixed.
Further, secret subassembly includes kelly, second bearing, indent, V type sealing washer, clamp plate and mounting down, the fixed embedding valve body bottom middle part of second bearing, the kelly runs through with second bearing top bottom both ends middle part to lower part and the fixed grafting of second bearing in the kelly surface, form the indent between second bearing bottom and the valve body, be provided with V type sealing washer between indent inner wall and the clamp plate top, the mounting runs through the valve body bottom simultaneously and the clamp plate pushes up the bottom both ends outside to the valve body passes through mounting and clamp plate fixed connection.
Furthermore, a rubber layer is arranged in the middle of the outer surface of the surrounding ring, and the outer surface of the rubber layer is rough.
Furthermore, the inner wall of the cone opening and the upper part of the outer surface of the cone head are mutually embedded.
Further, the mechanical seal is ZGJ-60.
(III) advantageous effects
Compared with the prior art, the utility model, following beneficial effect has:
1) the problem that the operation of draining water when solving this ball valve is frostproofing winter is not convenient enough sets up drain respectively through two parts about the valve body bottom, through the hand rotate compress tightly the lid, can open in the solid fixed ring department of second, again with the conical head on inserted bar top take out in the slot department of awl mouth inner wall lower part can, will be at the water discharge that the recess was concentrated, reached through adopting to compress tightly the mode installation of connection so that the operation beneficial effect that the water was frostproofing of draining.
2) The problem of the operation of clearance is not convenient enough in carrying out the valve for the solution, through setting up cleaning device in the valve body right part, it can be with its department take off at first solid fixed ring to rotate fixed lid through the hand, and first bed course and second bed course provide the seal, outside water receiving pipe of rethread is connected with hollow tube top department, it attaches the retaining ring and can drive the clearance brush of hollow tube lower part and brush at filter screen department and move and clear up the filtration foul again to be grabbed by the hand, and water hole exhaust water can carry out the cleaning operation, reached and set up outer brush part so that the beneficial effect of clearance in the valve.
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 structure of the present invention;
FIG. 4 is a schematic view of the internal partial structure A of the present invention;
fig. 5 is a schematic view of the internal partial structure B of the present invention;
fig. 6 is a schematic view of the internal partial structure C of the present invention;
fig. 7 is a schematic structural view of the drainage device of the present invention;
in the figure: the valve comprises a valve body-1, a connecting pipe-2, a flange-3, a stabilizing component-4, an upper sealing component-5, a rotating rod-6, a valve rod-7, a ball-8, a contact sealing gasket-9, a lower sealing component-10, a cleaning device-11, a liquid draining device-12, a first annular component-41, a threaded rod-42, a second annular component-43, a fixing ring-411, a bump-412, a boss-51, a mechanical seal-52, a asbestos layer-53, an O-shaped seal ring-54, a first bearing-55, a clamping rod-101, a second bearing-102, a pressure groove-103, a V-shaped seal ring-104, a pressure plate-105, a fixing component-106, a first fixing ring-111, a fixing cover-112, a first cushion layer-113, a pressure groove-103, a pressure plate-105, A second cushion layer-114, a hollow pipe-115, a surrounding ring-116, a lath-117, a water hole-118, a cleaning brush-119, a filter screen-1110, a slot-121, a cone mouth-122, an inserted rod-123, a cone head-124, a second fixing ring-125, a pressing cover-126 and a groove-127.
Detailed Description
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, the present invention provides a flange type ball valve with an anti-freezing function: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a valve body 1;
the middle parts of the left end and the right end of the valve body 1 are respectively welded with the connecting pipe 2, and the outer side of the connecting pipe 2 is welded with the flange 3;
the left end and the right end of the middle part of the outer surface of the valve body 1 are fixedly connected with the stabilizing component 4;
the middle part of the top end of the valve body 1 is welded with the upper seal component 5, the middle section inside the upper seal component 5 is movably connected with the valve rod 7, the top end of the valve rod 7 is fixedly inserted with the rotating rod 6, the bottom end of the valve rod 7 is fixedly inserted with the ball body 8,
the left end and the right end of the inner wall of the valve body 1 are respectively fixedly connected with the contact gasket 9, and the left end and the right end of the ball body 8 are respectively movably connected with the contact gasket 9;
the middle part of the bottom end of the valve body 1 is fixedly connected with a lower sealing component 10, and the middle part of the top end of the lower sealing component 10 is fixedly connected with the ball body 8;
the right part of the valve body 1 is fixedly connected with a cleaning device 11;
the left part and the right part of the bottom end of the valve body 1 are respectively provided with a liquid drainage device 12.
Wherein, the cleaning device 11 comprises a first fixing ring 111, a fixing cover 112, a first cushion 113, a second cushion 114, a hollow pipe 115, a surrounding ring 116, a strip plate 117, a water hole 118, a cleaning brush 119 and a screen 1110, the middle part of the outer surface of the first fixing ring 111 is in threaded connection with the inner wall of the fixing cover 112, the top end of the inner wall of the fixing cover 112 is bonded with the first cushion 113, the second cushion 114 is arranged at the lower part of the outer surface of the first fixing ring 111, the top end of the second cushion 114 is movably connected with the fixing cover 112, the upper part of the outer surface of the hollow pipe 115 is fixedly connected with the surrounding ring 116, the surrounding ring 116 is arranged at the right part of the top end of the valve body 1, the lower part of the left end of the hollow pipe 115 is fixedly connected with the strip plate 117, the left end and the right ends of the hollow pipe 115 and the strip plate 117 are both provided with water holes 118, the, clearance brush 119 left end and filter screen 1110 swing joint, 1 top right part of valve body and first solid fixed ring 111 fixed connection, hollow tube 115 runs through 1 top right part of valve body to valve body 1 and hollow tube 115 surface middle part swing joint, 1 inner wall right part of valve body and filter screen 1110 fixed connection add according to the aforesaid and establish outer brush part so that the beneficial effect of clearance in the valve.
Wherein, drain 12 includes slot 121, awl mouth 122, inserted bar 123, conical head 124, the solid fixed ring 125 of second, compresses tightly lid 126 and recess 127, slot 121 inner wall upper end is provided with awl mouth 122, inserted bar 123 top and conical head 124 fixed connection, awl mouth 122 inner wall and conical head 124 swing joint, inserted bar 123 and conical head 124 all with slot 121 swing joint, the solid fixed ring 125 fixed connection of awl mouth 122 bottom periphery and second, the solid fixed ring 125 surface lower part of second and compress tightly lid 126 inner wall upper end threaded connection, recess 127 sets up respectively in two parts about valve body 1 inner wall bottom, two parts all are provided with slot 121 and conical mouth 122 about valve body 1 bottom, install so that the operation beneficial effect of draining freeze-proofing through the mode installation that adopts to compress tightly the connection according to the aforesaid.
The stabilizing component 4 comprises a first annular component 41, a threaded rod 42 and a second annular component 43, the left end and the right end of the middle part of the outer surface of the valve body 1 are fixedly connected with the second annular component 43 and the first annular component 41 respectively, the shapes and the sizes of the components of the second annular component 43 and the first annular component 41 are the same, the threaded rod 42 penetrates through the left end and the right end of the second annular component 43 and the first annular component 41 simultaneously, the second annular component 43 and the first annular component 41 are fixedly connected with the threaded rod 42 through nuts, and an outer frame stabilizing component is provided according to the above to improve the overall stabilizing force.
Wherein, first annular subassembly 41 is including solid fixed ring 411 and lug 412, lug 412 is provided with four groups and its equidistance distributes in solid fixed ring 411 surface middle part, gu fixed ring 411 and lug 412 fixed connection, both ends respectively with solid fixed ring 411 fixed connection about valve body 1 surface middle part, both ends about lug 412 are run through simultaneously to threaded rod 42 to lug 412 passes through nut and threaded rod 42 fixed connection, provides the stable in position.
Wherein, go up close subassembly 5 including boss 51, mechanical seal 52, asbestos layer 53, O type sealing washer 54 and first bearing 55, boss 51 inner wall has set gradually mechanical seal 52, asbestos layer 53, O type sealing washer 54 and first bearing 55 from top to bottom to mechanical seal 52, asbestos layer 53, O type sealing washer 54 and first bearing 55 between laminating each other and compressing tightly, mechanical seal 52 and first bearing 55 respectively with boss 51 fixed connection, valve body 1 top middle part and boss 51 welding, valve rod 7 runs through mechanical seal 52, asbestos layer 53, O type sealing washer 54 and first bearing 55 top bottom both ends middle part simultaneously, and mechanical seal 52 and first bearing 55 are fixed pegged graft with valve rod 7, adopt multiple airtight part according to the aforesaid to improve sealed effect.
The lower seal assembly 10 comprises a clamping rod 101, a second bearing 102, a pressure groove 103, a V-shaped sealing ring 104, a pressure plate 105 and a fixing piece 106, the second bearing 102 is fixedly embedded in the middle of the bottom end of the valve body 1, the clamping rod 101 penetrates through the middle of the two ends of the top and the bottom of the second bearing 102, the middle lower portion of the outer surface of the clamping rod 101 is fixedly connected with the second bearing 102 in an inserting mode, the pressure groove 103 is formed between the bottom end of the second bearing 102 and the valve body 1, the V-shaped sealing ring 104 is arranged between the inner wall of the pressure groove 103 and the top end of the pressure plate 105, the fixing piece 106 penetrates through the outer sides of the bottom end of the valve body 1 and the two ends of the top and the bottom of the pressure plate 105 at the same time.
The rubber layer is arranged in the middle of the outer surface of the surrounding ring 116, and the outer surface of the rubber layer is rough, so that friction force is increased, and the hand can be conveniently gripped and rotated.
The inner wall of the cone opening 122 is embedded with the upper part of the outer surface of the cone head 124, and the beneficial effects of compaction and sealing are improved by improving the fitting degree between the inner wall of the cone opening 122 and the upper part of the outer surface of the cone head 124.
Wherein the mechanical seal 52 is of type ZGJ-60, durable, and inexpensive.
The mechanical seal 52 described in this patent is a device for preventing fluid leakage, which is composed of at least a pair of end faces perpendicular to the rotation axis, and which are kept in contact with each other and slide relative to each other by the action of fluid pressure and the elastic force (or magnetic force) of the compensating mechanism and the cooperation of the auxiliary seal.
The working principle is as follows: firstly, taking out the flange type ball valve with the anti-freezing function and placing the flange type ball valve at a position needing to be installed;
then, the flange 3 on the outer side of the connecting pipe 2 is stably installed at the connecting position with the outside;
then, when the ball valve is used, the rotating rod 6 is rotated by hand, the valve rod 7 can be driven to rotate in the upper sealing assembly 5, and the ball body 8 is driven to rotate in a contact manner at the position of the contact sealing gasket 9 in the valve body 1, the lower sealing assembly 10 provides a rotating supporting force for the ball body 8, the boss 51 provides a high-strength sealing effect at the position of the valve rod 7 through the mechanical seal 52, the asbestos layer 53 and the O-shaped seal ring 54 provide enhanced sealing capability, the first bearing 55 provides a rotation stabilizing effect for the valve rod 7, the clamping rod 101 of the lower sealing assembly 10 is inserted into the bottom end of the ball body 8 and is rotated and stabilized by the second bearing 102, the V-shaped seal ring 104 in the pressure groove 103 is sealed through the pressure plate 105 and is installed and stabilized by the fixing member 106, so that the overall sealing performance of the ball valve is improved;
then, when water drainage and freeze prevention are needed in winter, namely the liquid drainage devices 12 arranged on the left portion and the right portion of the bottom end of the valve body 1 are rotated by hands to press the pressing cover 126, so that the second fixing ring 125 can be opened, the conical head 124 at the top end of the inserting rod 123 is taken out from the slot 121 at the lower portion of the inner wall of the conical opening 122, water concentrated in the groove 127 is drained, the beneficial effect of water drainage and freeze prevention through installation in a pressing connection mode is achieved, and the water drainage and freeze prevention can be carried out in a sealed mode after water drainage is finished;
finally, when the ball valve needs to be cleaned, according to the above, the inserted rod 123 and the conical head 124 at the drainage device 12 are opened in advance to drain water, the cleaning device 11 arranged at the right part of the valve body 1 is used for taking the ball valve down at the first fixing ring 111 by rotating the fixing cover 112 by hand, the first cushion layer 113 and the second cushion layer 114 provide tightness, and then are connected with the top end of the hollow pipe 115 through the external water receiving pipe, the cleaning brush 119 at the lower part of the hollow pipe 115 can be driven by grabbing the surrounding ring 116 by hand to brush at the filter screen 1110 to clean and filter dirt, the water discharged from the water hole 118 can be cleaned, and the dirt can be cleaned at the conical opening 122 and the slot 121, so that the beneficial effect of additionally arranging an external brush component to clean the interior of the valve is achieved.
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 (9)
1. The utility model provides a flange formula ball valve with prevent frostbite which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a valve body;
the middle parts of the left end and the right end of the valve body are respectively welded with the connecting pipe, and the outer side of the connecting pipe is welded with the flange;
the left end and the right end of the middle part of the outer surface of the valve body are fixedly connected with the stabilizing assembly;
the middle part of the top end of the valve body is welded with the upper seal assembly, the middle section inside the upper seal assembly is movably connected with the valve rod, the top end of the valve rod is fixedly inserted with the rotating rod, the bottom end of the valve rod is fixedly inserted with the ball body,
the left end and the right end of the inner wall of the valve body are respectively fixedly connected with the contact gasket, and the left end and the right end of the ball body are respectively movably connected with the contact gasket;
the middle part of the bottom end of the valve body is fixedly connected with the lower sealing assembly, and the middle part of the top end of the lower sealing assembly is fixedly connected with the ball body;
the right part of the valve body is fixedly connected with the cleaning device;
the left part and the right part of the bottom end of the valve body are respectively provided with a liquid drainage device.
2. The flange type ball valve with the antifreezing function as defined in claim 1, wherein: the cleaning device comprises a first fixing ring, a fixing cover, a first cushion layer, a second cushion layer, a hollow pipe, a surrounding ring, a batten, water holes, a cleaning brush and a filter screen, wherein the middle part of the outer surface of the first fixing ring is in threaded connection with the inner wall of the fixing cover, the top end of the inner wall of the fixing cover is bonded with the first cushion layer, the second cushion layer is arranged at the lower part of the outer surface of the first fixing ring, the top end of the second cushion layer is movably connected with the fixing cover, the upper part of the outer surface of the hollow pipe is fixedly connected with the surrounding ring, the surrounding ring is arranged at the right part of the top end of the valve body, the lower part of the left end of the hollow pipe is fixedly connected with the batten, the water holes are arranged at the left end of the hollow pipe and the left end of the batten, the inside of the hollow pipe is communicated with the outer side of the left end of the, the hollow pipe penetrates through the right part of the top end of the valve body, the valve body is movably connected with the middle part of the outer surface of the hollow pipe, and the right part of the inner wall of the valve body is fixedly connected with the filter screen.
3. The flange type ball valve with the antifreezing function as defined in claim 1, wherein: drain includes slot, awl mouth, inserted bar, conical head, the solid fixed ring of second, compresses tightly lid and recess, slot inner wall upper end is provided with the awl mouth, inserted bar top and conical head fixed connection, conical mouth inner wall and conical head swing joint, inserted bar and conical head all with slot swing joint, the periphery of awl mouth bottom and second fixed ring fixed connection, the solid fixed ring surface lower part of second with compress tightly and cover inner wall upper end threaded connection, the recess sets up respectively in two parts about valve body inner wall bottom, two parts all are provided with slot and awl mouth about the valve body bottom.
4. The flange type ball valve with the antifreezing function as defined in claim 1, wherein: the firm subassembly includes first annular subassembly, threaded rod and second annular subassembly, both ends respectively with second annular subassembly and first annular subassembly fixed connection about valve body surface middle part, the component part appearance and the size homogeneous phase of second annular subassembly and first annular subassembly, the threaded rod runs through both ends about second annular subassembly and first annular subassembly simultaneously to second annular subassembly and first annular subassembly all pass through nut and threaded rod fixed connection.
5. The flange type ball valve with the antifreezing function as set forth in claim 4, wherein: first annular assembly is including solid fixed ring and lug, the lug is provided with four groups and its equidistance distributes in solid fixed ring surface middle part, gu fixed ring and lug fixed connection, both ends respectively with gu fixed ring fixed connection about valve body surface middle part, both ends about the lug are run through simultaneously to the lug passes through nut and threaded rod fixed connection.
6. The flange type ball valve with the antifreezing function as defined in claim 1, wherein: go up close subassembly including convex seat, mechanical seal, asbestos layer, O type sealing washer and first bearing, the convex seat inner wall has set gradually mechanical seal, asbestos layer, O type sealing washer and first bearing from top to bottom to laminating each other between mechanical seal, asbestos layer, O type sealing washer and the first bearing and compressing tightly, mechanical seal and first bearing respectively with convex seat fixed connection, valve body top middle part and convex seat welding, the valve rod runs through mechanical seal, asbestos layer, O type sealing washer and first bearing top end both ends middle part simultaneously to mechanical seal and first bearing are pegged graft with the valve rod is fixed.
7. The flange type ball valve with the antifreezing function as defined in claim 1, wherein: the lower seal assembly comprises a clamping rod, a second bearing, a pressure groove, a V-shaped sealing ring, a pressing plate and a fixing piece, the second bearing is fixedly embedded into the middle of the bottom end of the valve body, the clamping rod penetrates through the middle of the two ends of the second bearing at the top and is fixedly connected with the second bearing at the middle lower part of the outer surface of the clamping rod in an inserting mode, the pressure groove is formed between the bottom end of the second bearing and the valve body, the V-shaped sealing ring is arranged between the inner wall of the pressure groove and the top end of the pressing plate, the fixing piece penetrates through the outer sides of the two ends of the bottom.
8. The flange type ball valve with the antifreezing function as defined in claim 2, wherein: the middle part of the outer surface of the surrounding ring is provided with a rubber layer, and the outer surface of the rubber layer is rough.
9. The flange type ball valve with the antifreezing function as set forth in claim 3, wherein: the inner wall of the cone opening is embedded with the upper part of the outer surface of the cone head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020112988.1U CN211449738U (en) | 2020-01-17 | 2020-01-17 | Flange formula ball valve with frostproofing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020112988.1U CN211449738U (en) | 2020-01-17 | 2020-01-17 | Flange formula ball valve with frostproofing function |
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| Publication Number | Publication Date |
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| CN211449738U true CN211449738U (en) | 2020-09-08 |
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| CN202020112988.1U Active CN211449738U (en) | 2020-01-17 | 2020-01-17 | Flange formula ball valve with frostproofing function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352765A (en) * | 2022-01-22 | 2022-04-15 | 江苏明江阀业有限公司 | High-performance anti-blocking pneumatic full-lining ball valve |
-
2020
- 2020-01-17 CN CN202020112988.1U patent/CN211449738U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352765A (en) * | 2022-01-22 | 2022-04-15 | 江苏明江阀业有限公司 | High-performance anti-blocking pneumatic full-lining ball valve |
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