CN207989784U

CN207989784U - A kind of ceramic ball valve with utilidor

Info

Publication number: CN207989784U
Application number: CN201820097213.4U
Authority: CN
Inventors: 李秋
Original assignee: Yongjia One Nuclear Automatic Valve Co Ltd
Current assignee: Yongjia One Nuclear Automatic Valve Co Ltd
Priority date: 2018-01-19
Filing date: 2018-01-19
Publication date: 2018-10-19
Anticipated expiration: 2028-01-19

Abstract

The utility model discloses a kind of ceramic ball valves with utilidor, including executing handle, valve body, valve seat, sphere and valve rod, the valve chamber valve body that perforation valve body is provided in valve body offers the utilidor of an intercommunication with valve seat, the utilidor includes inlet end and outlet side, the inlet end is located at valve body edge and is in communication with the outside, outlet side is located at valve cup rim and is connected to valve chamber, valve body offers the empty slot being in communication with the outside relative to the side of utilidor, the empty slot is equipped with can be along the rotating bar that empty slot inner wall circumferentially rotates, rotating bar is connected with the transmission component being rotatably assorted with it, transmission component is linkedly set with the baffle of sealing thermal insulation pipeline, when rotating bar driving transmission component rotation, transmission component can drive baffle unicom or partition heat preservation function pipeline.The utility model has the following advantages and effect：Hot steam can be injected by utilidor, the temperature of valve is added to and is maintained at certain range, valve is enable to run well in cold environments.

Description

A kind of ceramic ball valve with utilidor

Technical field

The utility model is related to a kind of valve, more particularly to a kind of ceramic ball valve with utilidor.

Background technology

Ball valve is mainly used to make the flow direction for cutting off, distributing and changing medium in pipeline, it is only needed with rotation 90 The operation of degree and the rotating torque of very little can close tightly.In China, ball valve is widely used in petroleum refining, long defeated pipe The industries such as line, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel occupy very important status in national economy.

When ball valve works under cold environment for a long time, the remaining fluid media (medium) of valve inner can be frozen due to low temperature, And the case where causing ball valve appearance that can not rotate.Faced with this situation, the common approach is that encasing valve using heat-barrier material, subtract Few hot loss of energy keeps valve normal temperature, but this method insulating power is general, and effect is not notable, and need by Heat-barrier material surrounds valve layer by layer, troublesome in poeration, meanwhile, it is also cumbersome to remove heat-barrier material.

Utility model content

The purpose of this utility model is to provide a kind of ceramic ball valve with utilidor, can inject hot steaming by utilidor The temperature of valve is added to and is maintained at certain range, valve is enable to run well in cold environments by vapour.

The above-mentioned technical purpose of the utility model technical scheme is that：It is a kind of with utilidor Ceramic ball valve, including handle, valve body, valve seat, sphere and valve rod are executed, the valve chamber of perforation valve body is provided in valve body, valve rod is worn Set on valve body, the upper end and actuatable valve bar that execute handle connection valve rod are realized along valve rod axle center and are circumferentially rotated, valve rod lower end with Sphere linkage setting, valve seat are fixedly installed on valve body and coordinate with ball seal, and the valve body offers an intercommunication with valve seat Utilidor, the utilidor include inlet end and outlet side, and the inlet end is located at valve body edge and is in communication with the outside, outlet End is connected to positioned at valve cup rim and with valve chamber, and the valve body offers the sky being in communication with the outside relative to the side of utilidor Slot, which, which is equipped with, to be connected with the biography being rotatably assorted with it along the rotating bar that empty slot inner wall circumferentially rotates, the rotating bar Dynamic component, the transmission component are linkedly set with the baffle of sealing thermal insulation pipeline, when rotating bar driving transmission component rotation, pass Dynamic component can drive baffle unicom or partition heat preservation function pipeline.

By using above-mentioned technical proposal, the inlet end of utilidor is in communication with the outside, outlet side is connected to valve chamber, passes through The inlet end of utilidor injects hot steam, and hot steam can be gushed out in outlet side and diffuse in valve chamber, improves the temperature in valve chamber Degree enables valve to run well.In addition, being provided with rotating bar, transmission component in order to be sealed to utilidor, in valve body And baffle, the rotation of rotating bar can drive transmission component to move, and then transmission component can drive baffle to move back and forth, the shifting of baffle Moving can unicom or partition heat preservation function pipeline.The advantage is that, the setting of utilidor, can by utilidor inject hot steam come The temperature in valve chamber is improved, valve is enable to work normally in cold environments；The setting of rotating bar is transmission group as force section Part force active force；The transmission of power is played the role of in the setting of transmission component, and the active force of rotating bar is transferred to baffle；Baffle Setting the reciprocating movement of baffle can be driven by rotating bar for sealing or opening utilidor.Rotating bar, transmission component And the cooperation of baffle three, rotating bar, and then the reciprocating movement of application valve body Internal baffle can be controlled from the external world, it is easy to operate, and The leakproofness of valve body is not influenced.

It is further arranged to：It is offered in the valve body for the movable inner cavity of transmission component, the transmission component includes turning Disk and driving member, the marginal position at the top of the turntable are fixedly installed fixed block, simultaneously mandrel are located therein at the top of the turntable The position of line is fixedly connected with rotating bar, the driving member peripheral surface be circumferentially equally spaced there are six with fixed block corresponding matching Elongated slot, at the top of the driving member and position of axis at its center is fixedly installed gear, and the baffle is bonded with gear Side be arranged geared surface, and with gear engaged transmission, fixed block can be driven to start circumferential direction in initial position when turntable rotates Rotation, the fixed block are embedded an elongated slot, contradict the elongated slot and the elongated slot is driven to rotate, and risen relative to fixed block The other side of beginning position is detached from the elongated slot.

By using above-mentioned technical proposal, transmission component includes turntable and driving member, center of turntable axial location with turn Lever is fixedly connected, and the rotation of rotating bar can drive turntable to rotate.When turntable rotates, being fixed on fixed block on turntable also can be with With rotation, when fixed block, which turns to, is embedded an elongated slot, elongated slot can be contradicted and elongated slot is driven to move, until with the elongated slot It is detached from, in this process, driving member has rotated one section of fixed angle under the drive of fixed block.Fixed block is detached from elongated slot Afterwards, it is rotated further a distance, until being embedded in next elongated slot again.In cycles, rotating bar per revolution may make biography Moving part rotates one section of fixed angle, and driving member often rotates one section of fixed angle and baffle can be driven to move forward or back one by gear The identical distance of section.Rotating bar per revolution may make driving member to rotate one section of fixed angle, which is defined as One grade and six gears are added up to, and the cross-sectional width of utilidor is equidistant and be divided into five nodal distances, the nodal point separation It is driven with a distance from baffle moved from often rotating one grade equal to driving member.It the advantage is that, gear is driven by the rotation of driving member Plate movement can control the degree of blocking of utilidor, control to flow through the flow velocity of hot steam in utilidor, and the setting of gear is more Facilitate control, it be not standard-sized sheet for channel is exactly fully closed phenomenon to change conventional, and hot steam is quantitatively controlled according to gear Flow velocity suitably adjusts the bulk temperature in valve chamber, more hommization.

It is further arranged to：The valve body offers the sliding slot moved back and forth for baffle in the movement locus of baffle, the cunning The first positive stop end and the second positive stop end of restricted baffle scope of activities is arranged in slot.

By using above-mentioned technical proposal, when driving member drives baffle to move back and forth, baffle can have two in sliding slot Extreme position, that is, be fully sealed utilidor or with completely disengage utilidor, in this case, continue to move for anti-baffle plate It is dynamic, it is provided with the first positive stop end and the second positive stop end.When utilidor, one end and the first positive stop end phase is fully sealed in baffle It supports, and can not be continued to move in the direction by the blocking of the first positive stop end；It is another when baffle completely disengages utilidor One end offsets with the second positive stop end, and can not be continued to move in the direction by the blocking of the second positive stop end.It the advantage is that, Sliding slot and the first positive stop end and the second positive stop end can limit the scope of activities of baffle, the excessive movement of anti-baffle plate.

It is further arranged to：The center of turntable is fixedly installed with arc block jaggy, center axis and turntable Shaft axis coincide, and the notch direction of the arc block is towards fixed block, at the top of the arc block and axis at its center Position be fixedly connected with rotating bar, be both provided with the curved portion to driving member central concave between the adjacent elongated slot, and should Curved portion and arc block corresponding matching.

By using above-mentioned technical proposal, arc block is correspondingly arranged with curved portion, and the movement rail of arc block and curved portion There is the process for contacting and being bonded in mark.Turntable is rotated, the fixed block and arc block for being fixed on turntable can follow rotation, work as fixed block When being not embedded into elongated slot, the non-barbed portion of arc block can be moved along curved portion.It the advantage is that, arc block and curved portion are set It sets, plays guiding function so that the rotation of driven by rotary disc driving member is more smooth, meanwhile, it can also improve turntable and match with driving member The stability of conjunction prevents cooperation therebetween from deviation occur.

It is further arranged to：The valve chamber includes into accent and going out accent, described into accent and to go out accent and be in communication with the outside Edge be symmetrically arranged with mounting portion, the mounting portion is equipped with the sealing plate for sealing valve chamber.

By using above-mentioned technical proposal, into accent and goes out accent sealing plate is installed by mounting portion, it is salable entire Valve chamber, when hot steam enters valve body by utilidor and spreads, can prevent hot steam by into accent and go out accent be lost in To the external world.It the advantage is that, the setting of mounting portion and sealing plate, may make hot steam that can only can recycle diffusion in valve chamber, carry High heat insulation effect.

It is further arranged to：The mounting portion is both provided with threaded hole, and the peripheral surface of the sealing plate corresponds to threaded hole and sets It is equipped with through-hole.

By using above-mentioned technical proposal, when sealing plate is installed on mounting portion, through-hole and and screw thread can be inserted by bolt Hole coordinates, and realizes the fixation to sealing plate.It the advantage is that, fixed function is played in the setting of threaded hole and through-hole, can prevent close Sealing plate is detached with valve body.

It is further arranged to：The influent stream end is embedded with for dust-proof rubber stopper, the rubber stopper relative to valve body outside The one end on boundary is connected with the draw ring for detaching rubber stopper with utilidor, which is fixed by bracing wire and rubber stopper connects It connects.

By using above-mentioned technical proposal, rubber stopper can be embedded in utilidor to realize the influent stream end progress to utilidor Sealing can make rubber stopper be detached from influent stream end by draw ring and bracing wire.It the advantage is that, the setting of rubber stopper, it can dust-proof dust etc. Magazine enters in utilidor；The setting of draw ring and bracing wire, it is laborsaving and be conveniently operated for extracting rubber stopper.

It is further arranged to：One end that the rotating bar is in communication with the outside is fixedly installed the handle convenient for rotation.

By using above-mentioned technical proposal, using the more convenient gripping of the handle and rotating bar is rotated.

In conclusion the utility model has the advantages that：Hot steam is injected by utilidor to improve valve chamber Interior temperature, enables valve to work normally in cold environments；Using the cooperation of rotating bar, turntable and driving member, gear can be driven Plate unicom or partition heat preservation function pipeline；Simultaneously according to the structure of turntable and driving member, driving member is set there are six elongated slot, and turntable often rotates One circle can drive one of driving member elongated slot to turn to the position of next elongated slot, which is defined as one grade, and It is divided into six gears, driving member is provided with gear, and driving member often rotates one grade and drives baffle to move forward or back using gear One section of identical distance can quantitatively control hot steam by the seal degree of control baffle and utilidor according to gear Flow velocity, suitably adjust the bulk temperature in valve chamber, more hommization.

Description of the drawings

Fig. 1 is the structural schematic diagram of embodiment；

Fig. 2 is the portions A enlarged drawing in Fig. 1；

Fig. 3 is the portions B enlarged drawing in Fig. 1；

Fig. 4 is the portions C enlarged drawing in Fig. 1；

Fig. 5 is the stereogram of baffle in embodiment；

Fig. 6 is the structural schematic diagram of transmission component in embodiment；

Fig. 7 is another structural schematic diagram of transmission component in embodiment.

In figure：11, handle is executed；12, valve body；13, valve seat；14, valve rod；15, sphere；16, valve chamber；2, utilidor； 21, inlet end；22, outlet side；3, rotating bar；31, empty slot；32, handle；4, transmission component；41, turntable；411, arc block； 412, fixed block；42, driving member；421, gear；422, elongated slot；423, curved portion；4221, the first elongated slot；4222, the second length Slot；5, baffle；51, the flank of tooth；6, sliding slot；61, the first positive stop end；62, the second positive stop end；71, rubber stopper；72, draw ring；73, it draws Line；81, sealing plate；82, threaded hole.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.

Referring to figs. 1 to Fig. 7, a kind of ceramic ball valve with utilidor, including execute handle 11, valve body 12, valve seat 13, ball Body 15 and valve rod 14, the valve chamber 16 of perforation valve body 12 is offered in valve body 12, and valve chamber 16 includes into accent and going out accent, valve rod 14 It is vertical to be arranged in valve body 12 and the central shaft positioned at valve body 12, execute the top that handle 11 is located at valve body 12, the execution handle 11 It connects the upper end of valve rod 14 and actuatable valve bar 14 realizes along 14 axle center of valve rod and circumferentially rotate that 14 lower end of valve rod is linked with sphere 15 Setting, valve seat 13, which is fixedly installed on valve body 12 and is sealed with sphere 15, to be coordinated.Rotation executes handle 11 and can be rotated with ovable valve stem 14, And then drive sphere 15 to circumferentially rotate, the cooperation of sphere 15 and valve seat 13 can unicom or partition valve chamber 16, when sphere 15 and valve Separate valve chamber 16 when seat 13 offsets；The unicom valve chamber 16 when sphere 15 is detached with valve body 12.

In addition, valve body 12 and valve seat 13 offer the utilidor 2 of an intercommunication, the utilidor 2 include inlet end 21 with Outlet side 22, inlet end 21 be located at 12 edge of valve body and be in communication with the outside, outlet side 22 is located at 13 edge of valve seat and with valve chamber 16 Connection.Hot steam is injected to improve the temperature in valve chamber 16 by utilidor 2, enables valve normal work in cold environments Make.Valve body 12 offers the empty slot 31 being in communication with the outside relative to the side of utilidor 2, which is equipped with can be along empty slot The rotating bar 3 that 31 inner walls circumferentially rotate, rotating bar 3 are connected with the transmission component 4 being rotatably assorted with it, and the linkage of transmission component 4 is set It is equipped with the baffle 5 of sealing thermal insulation pipeline 2, when rotating bar 3 drives transmission component 4 to rotate, transmission component 4 can drive baffle 5 Logical or partition heat preservation function pipeline 2.

In addition, being offered in valve body 12 for 4 movable inner cavity of transmission component, transmission component 4 includes turntable 41 and driving member 42, the marginal position at 41 top of turntable is fixedly installed fixed block 412, and 41 center of turntable is fixedly installed with arc jaggy Block 411, center axis and the shaft axis of turntable 41 coincide, and the notch direction of the arc block 411 is towards fixed block 412, At the top of the arc block 411 and position of axis at its center is fixedly connected with rotating bar 3, and 42 peripheral surface of driving member is circumferentially equidistant Distribution is both provided with to driving member between the arbitrary neighborhood elongated slot 422 there are six elongated slot 422 with 412 corresponding matching of fixed block The curved portion 423 of 42 central concaves, curved portion 423 and 411 corresponding matching of arc block and shape adaptation.42 top of driving member and position It is fixedly installed gear 421 in the position of center axis, the side that baffle 5 is bonded with gear 421 is provided with matches with gear 421 The flank of tooth 51 of conjunction, the baffle 5 pass through 421 engaged transmission of the flank of tooth 51 and gear.

Specifically, rotating bar 3 is fixedly connected with turntable 41, when rotating bar 3 is rotated, turntable 41 can be driven to turn together It is dynamic, and the fixed block 412 for being fixedly installed on turntable 41 can also be followed with arc block 411 and be rotated together.When fixed block 412 is not embedded into When elongated slot 422 on driving member 42, relative to 412 other side of fixed block arc block 411 can and the curved portion on driving member 42 423 fittings simultaneously offset, meanwhile, with the rotation of turntable 41, the periphery which understands arcuately portion 423 slips over, and can be improved The stability that turntable 41 coordinates with driving member 42, prevents cooperation therebetween from deviation occur.For convenience of description, herein by two of which Elongated slot 422 is respectively defined as the first elongated slot 4221 and the second elongated slot 4222, with the rotation of turntable 41, when fixed block 412 is embedded in When the first elongated slot 4221, fixed block 412 can contradict the first elongated slot 4221 and drive the first elongated slot by the active force of fixed block 412 4221 rotations, when the first elongated slot 4221 turns to the position of the second elongated slot 4222, fixed block 412 and the first elongated slot 4221 are de- From driving member 42 loses the active force of fixed block 412 and stops operating, and in this course, the first elongated slot 4221 is moved to Second elongated slot 4222, driving member 42 have rotated 72 degree of angles, and the gear 421 for being fixedly installed on the top of driving member 42 is also followed and had rotated 72 degree of angles move forward or back one section of fixed distance with the baffle 5 of 421 engaged transmission of gear under the drive of gear 421.Cause This, 41 every revolution of turntable can drive driving member 42 to rotate 72 degree of angles, and drive baffle 5 to move forward or back one by driving member 42 Section fixed range.Assuming that the cross-sectional width of utilidor 2 is X, the value of the equidistant five decile X obtains indicating baffle 5 and insulating tube Nodal distance A=the X/5 in gap between road 2, the nodal distance equal to driving member 42 often rotate 72 degree of angles drive baffles 5 advance or The distance of retrogressing.

In addition, the rotational angle of driving member 42 is divided into six gears, one grade indicates that driving member 42 is located at the first elongated slot 4221 initial positions, two grades indicate that driving member 42 has rotated 72 degree relative to the initial position of the first elongated slot 4221, two grades of expressions Driving member 42 has rotated 144 degree relative to the initial position of the first elongated slot 4221, and so on.The start bit of first elongated slot 4221 Set the position for being defined as the first elongated slot 4221 when baffle 5 is inserted into utilidor 2 and is fully sealed with utilidor 2.Therefore, one grade Indicate that baffle 5 is fully sealed with utilidor 2, nodal distance A=0, two grades of nodal point separations indicated between baffle 5 and utilidor 2 From A=X/5, third gear indicate the nodal distance A between baffle 5 and utilidor 2=（X/5）* 2, and so on, six grades indicate gear Plate 5 is kept completely separate with utilidor 2, and the nodal distance in gap is X, the i.e. cross-sectional width of pipeline therebetween.It can be quantified according to gear Ground controls the flow velocity of hot steam, suitably adjusts the bulk temperature in valve chamber 16, more hommization.

In addition, according to the rotation direction of rotating bar 3,42 positive direction of driving member or negative direction can be driven to rotate.Work as driving member When 42 positive directions rotate, baffle 5 can be driven to advance towards the direction of utilidor 2；When 42 negative direction of driving member rotates, can drive Baffle 5 is retreated towards the direction of utilidor 2.

In addition, valve body 12 offers the sliding slot 6 moved back and forth for baffle 5 in the movement locus of baffle 5, the sliding slot 6 setting The first positive stop end 61 and the second positive stop end 62 of 5 scope of activities of restricted baffle.When driving member 42 drives baffle 5 to move back and forth, Baffle 5 in sliding slot 6 can exist two extreme positions, that is, be fully sealed utilidor 2 or with completely disengage utilidor 2, In this case, it is continued to move to for anti-baffle plate 5, is provided with the first positive stop end 61 and the second positive stop end 62.When baffle 5 is completely close Seal utilidor 2, one end offsets with the first positive stop end 61, and by the blocking of the first positive stop end 61 and can not in the direction after Continuous movement；When baffle 5 completely disengages utilidor 2, the other end offsets with the second positive stop end 62, and by the second positive stop end 62 blocking and can not continue to move in the direction.

In addition, into accent and going out the edge that accent is in communication with the outside and being symmetrically arranged with mounting portion, which is respectively provided with There is threaded hole 82, and the sealing plate 81 that valve chamber 16 is sealed is equipped with by the mounting portion, the peripheral surface of the sealing plate 81 corresponds to Threaded hole 82 is simultaneously symmetrically arranged with through-hole, and fixed function is played in the setting of threaded hole 82 and through-hole, can prevent sealing plate 81 and valve Body 12 detaches.When sealing plate 81 is installed on into accent and goes out accent, salable entire valve chamber 16 so that hot steam can only be in valve The cycle diffusion of 16 interior energy of chamber, improves heat insulation effect.

In addition, inlet end 21 is embedded with for dust-proof rubber stopper 71, the rubber stopper 71 is relative to 12 external world of valve body One end is connected with the draw ring 72 for detaching rubber stopper 71 with utilidor 2, which passes through bracing wire 73 and rubber stopper 71 It is fixedly connected, can be convenient for extracting rubber stopper 71 using draw ring 72.

In addition, one end that rotating bar 3 is in communication with the outside is fixedly installed the handle 32 convenient for rotation, more using the handle 32 Add to facilitate and holds and rotating bar 3 is rotated.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but As long as all being protected by Patent Law in the right of the utility model.

Claims

1. a kind of ceramic ball valve with utilidor, including execute handle (11), valve body (12), valve seat (13), sphere (15) and Valve rod (14), the interior valve chamber (16) for being provided with perforation valve body (12) of valve body (12), valve rod (14) are arranged in valve body (12), execute hand Simultaneously along valve rod (14) axle center, realization circumferentially rotates actuatable valve bar (14) for the upper end of handle (11) connection valve rod (14), under valve rod (14) End is arranged with sphere (15) linkage, and valve seat (13), which is fixedly installed on valve body (12) and is sealed with sphere (15), to be coordinated, and feature exists In：The valve body (12) offers the utilidor (2) of an intercommunication with valve seat (13), which includes inlet end (21) with outlet side (22), the inlet end (21) be located at valve body (12) edge and be in communication with the outside, outlet side (22) are located at valve Seat (13) edge is simultaneously connected to valve chamber (16), and the valve body (12) offers relative to the side of utilidor (2) to be connected with extraneous Logical empty slot (31), which is equipped with can be along the rotating bar (3) that empty slot (31) inner wall circumferentially rotates, the rotating bar (3) it is connected with the transmission component (4) being rotatably assorted with it, the transmission component (4) is linkedly set with sealing thermal insulation pipeline (2) Baffle (5), when rotating bar (3) driving transmission component (4) rotates, transmission component (4) can drive baffle (5) unicom or partition Utilidor (2).

2. a kind of ceramic ball valve with utilidor according to claim 1, it is characterised in that：It is opened in the valve body (12) Equipped with for transmission component (4) movable inner cavity, the transmission component (4) includes turntable (41) and driving member (42), the turntable (41) marginal position at the top of is fixedly installed the position of fixed block (412), turntable (41) top and axis at its center It sets and is fixedly connected with rotating bar (3), driving member (42) peripheral surface is circumferentially equally spaced, and there are six right with fixed block (412) The position of the elongated slot (422) that should coordinate, driving member (42) top and axis at its center is fixedly installed gear (421), the baffle (5) is bonded with gear (421) side setting geared surface (51), and with gear (421) engaged transmission, when Turntable (41) can drive fixed block (412) to start to circumferentially rotate in initial position when rotating, and the fixed block (412) is embedded One elongated slot (422) contradicts the elongated slot (422) and the elongated slot (422) is driven to rotate, and originated relative to fixed block (412) The other side of position is detached from the elongated slot (422).

3. a kind of ceramic ball valve with utilidor according to claim 2, it is characterised in that：The valve body (12) is in gear The movement locus of plate (5) offers the sliding slot (6) moved back and forth for baffle (5), and it is living which is arranged restricted baffle (5) The first positive stop end (61) and the second positive stop end (62) of dynamic range.

4. a kind of ceramic ball valve with utilidor according to claim 3, it is characterised in that：Turntable (41) center It is fixedly installed with arc block jaggy (411), center axis and the shaft axis of turntable (41) coincide, and the arc block (411) notch direction is towards fixed block (412), arc block (411) top and the position of axis at its center and turns Lever (3) is fixedly connected, and the curved portion to driving member (42) central concave is both provided between the adjacent elongated slot (422) And the curved portion (423) and arc block (411) corresponding matching (423),.

5. a kind of ceramic ball valve with utilidor according to claim 1, it is characterised in that：The valve chamber (16) includes Into accent and go out accent, it is described into accent and to go out the edge that accent is in communication with the outside and be symmetrically arranged with mounting portion, the installation Portion is equipped with the sealing plate (81) for sealing valve chamber (16).

6. a kind of ceramic ball valve with utilidor according to claim 5, it is characterised in that：The mounting portion is respectively provided with There are threaded hole (82), the peripheral surface of the sealing plate (81) to correspond to threaded hole (82) and be provided with through-hole.

7. a kind of ceramic ball valve with utilidor according to claim 1, it is characterised in that：The inlet end (21) is embedding Equipped with for dust-proof rubber stopper (71), the rubber stopper (71) is connected with relative to the one end in valve body (12) external world for by rubber The draw ring (72) that rubber plug (71) is detached with utilidor (2), the draw ring (72) connect by the way that bracing wire (73) and rubber stopper (71) are fixed It connects.

8. a kind of ceramic ball valve with utilidor according to claim 1, it is characterised in that：The rotating bar (3) with One end of external world's connection is fixedly installed the handle (32) convenient for rotation.