CN210179025U - Erosion-resistant nano toughened ceramic double-valve-plate gate valve - Google Patents

Abstract

The utility model relates to a bivalve plate sluice valve technical field just discloses a resistant tough pottery double valve plate gate valve of erosion nanometer, including pneumatic support, the first flange of bottom fixedly connected with of pneumatic support, bolt fixedly connected with second flange is passed through to the bottom of first flange, the bottom fixedly connected with communicating pipe of second flange, the interior diapire fixedly connected with bedding and padding seat circle of communicating pipe. The utility model discloses a, through on filling the packing layer to the bedding and padding seat circle in the communicating tube, the threaded rod is rotated, utilize the threaded connection of threaded rod and nut, reduce the distance of threaded rod top and first flange and second flange to drive the briquetting and remove downwards, make the gland of bottom compress tightly downwards between the briquetting, with the packing layer compaction, thereby seal the valve port in the communicating tube, let the sealed effect of filler department better, avoid filler department to reveal and lead to the machine trouble, made things convenient for user's use.

Description

Erosion-resistant nano toughened ceramic double-valve-plate gate valve

Technical Field

The utility model relates to a bivalve plate sluice valve technical field specifically is an anti erosion nanometer toughening pottery bivalve plate sluice valve.

Background

The parallel double-gate valve is one kind of ceramic gate valve. Its structure is unanimous with the gate valve with the theory of operation, and its body of opening and close (valve plate) drives the sealed face of disk seat by the valve rod and makes elevating movement, can switch on or cut fluidic passageway, when the valve part is opened, produces the vortex at the flashboard back, easily arouses the erosion and the vibrations of flashboard, also fragile sealed face of disk seat, the repair difficulty is applicable to usually not opening and close, keeps the operating mode of flashboard full-open or full-cut-off moreover, the theory of operation of parallel double gate valve: the valve rod drives the valve plate to move up and down to realize the opening and closing of the valve by means of external power provided by the air cylinder or the hand wheel, and the valve plate is in close contact with the valve seat by means of the pretightening force of the spring arranged between the double flashboards in the opening and closing process of the valve, so that sealing is realized.

In daily use of the double-gate-plate gate valve, the most common problem is valve leakage, wherein the leakage probability of the filler part is the largest, so that the double-gate-plate gate valve cannot be used, the mechanical operation efficiency and environment are influenced, the service life of the double-gate-plate gate valve is shortened, and the anti-erosion nano toughened ceramic double-valve-plate gate valve is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an anti erosion nanometer toughening pottery double valve plate gate valve possesses advantages such as prevent filler department from leaking, has solved filler department and has leaked, can lead to the unable use of double-gate board gate valve, influences the mechanical operating efficiency and environment, subtracts the problem of short double-gate board gate valve's life.

(II) technical scheme

For the purpose of realizing above-mentioned filler department of preventing leakage, the utility model provides a following technical scheme: an anti-erosion nano toughened ceramic double-valve-plate gate valve comprises a pneumatic support, wherein a first flange is fixedly connected to the bottom end of the pneumatic support, a second flange is fixedly connected to the bottom of the first flange through a bolt, a communicating pipe is fixedly connected to the bottom of the second flange, a packing seat ring is fixedly connected to the inner bottom wall of the communicating pipe, a packing layer is arranged on the top of the packing seat ring in a contact manner, a packing gland is slidably connected to the top of the first flange, the bottom of the packing gland sequentially penetrates through the first flange, the second flange and the communicating pipe and extends to the inside of the communicating pipe, evenly-distributed pressing blocks are contacted with the top of the packing gland, a threaded rod is rotatably connected to the top of each pressing block, a nut is connected to the bottom end of the threaded rod sequentially penetrates through the pressing blocks, the first flange and the second flange and extends to the bottom of the second, the top end of the nut is in contact with the bottom of the second flange, the valve sealing pair is made of nanotechnology toughened ceramic, and the ceramic part and the metal part are matched and assembled.

Preferably, the top of the packing gland is provided with clamping grooves which are uniformly distributed, and one end of the pressing block close to the packing gland is clamped with the clamping grooves.

Preferably, hexagonal grooves which are uniformly distributed are formed in the bottom of the second flange, the top of the nut is embedded in the hexagonal grooves, and the bottom end of the threaded rod penetrates through the bottom of the nut and extends to the bottom of the nut.

Preferably, the number of compacts is at least three.

Preferably, the threaded rod is sleeved with a contact ring which is rotatably connected with the threaded rod, the contact ring is located at the top of the pressing block, and the bottom of the contact ring is in contact with the top of the pressing block.

Preferably, the packing gland is sleeved with a spring, the top of the spring is fixedly connected with the packing gland, and the bottom of the spring is fixedly connected with the top end of the second flange.

(III) advantageous effects

Compared with the prior art, the utility model provides an anti erosion nanometer toughening pottery double valve plate gate valve possesses following beneficial effect:

1. through on filling the packing layer to the bedding and padding seat circle in the communicating tube, rotate the threaded rod, utilize the threaded rod and the threaded connection of nut, reduce the distance of threaded rod top and first flange and second flange, thereby drive the briquetting and remove downwards, make the gland of bottom compress tightly downwards between the briquetting, with the packing layer compaction, thereby seal the valve port in the communicating tube, let the sealed effect of filler department better, avoid filler department to leak and lead to machine trouble, made things convenient for user's use.

2. Through the draw-in groove joint on briquetting and the gland, when the threaded rod rotates and contacts with the briquetting, prevent that the briquetting from following the threaded rod and rotating and gland and break away from, guarantee that the briquetting can play the effect of compressing tightly to gland.

3. Through the scarf joint of nut and hexagonal groove, when the threaded rod rotated, the nut can not be owing to follow the threaded rod rotation with the threaded connection of threaded rod, avoided the nut to skid.

4. Make the atress at gland top more even through three and three more than briquetting, guarantee that gland can not incline at the removal in-process and cause the hindrance for the structure is more stable.

5. When the threaded rod rotates, the top of the threaded rod descends, the top of the threaded rod is isolated from the pressing block through the contact ring, the top of the threaded rod is prevented from being in direct contact with the pressing block, the threaded rod is difficult to rotate, the contact ring is connected with the threaded rod in a rotating mode, friction of the pressing block on the threaded rod when the threaded rod descends is reduced, labor is saved, and the use of a user is facilitated.

6. The spring belongs to compression state under the condition of not atress, through the elasticity of spring for gland has decurrent power all the time, when the packing layer has the gap, drives gland downstream through the spring can be timely, carries out interim sealing process, has made things convenient for user's use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection structure of the packing layer and the packing gland in front view and section view;

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;

fig. 4 is a schematic view of the connection structure of the threaded rod and the contact ring of the present invention.

In the figure: 1. a pneumatic support; 2. a first flange; 3. a second flange; 4. a communicating pipe; 5. a pad seat ring; 6. a filler layer; 7. a packing gland; 8. briquetting; 9. a threaded rod; 10. a nut; 11. a card slot; 12. a hexagonal groove; 13. a contact ring; 14. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, an erosion-resistant nano toughened ceramic double-valve-plate gate valve comprises a pneumatic support 1, a first flange 2 is fixedly connected to the bottom end of the pneumatic support 1, a second flange 3 is fixedly connected to the bottom of the first flange 2 through a bolt, a communicating pipe 4 is fixedly connected to the bottom of the second flange 3, a packing seat ring 5 is fixedly connected to the inner bottom wall of the communicating pipe 4, a packing layer 6 is arranged at the top of the packing seat ring 5 in contact with the packing layer, a packing gland 7 is slidably connected to the top of the first flange 2, the bottom of the packing gland 7 sequentially penetrates through the first flange 2, the second flange 3 and the communicating pipe 4 and extends to the inside of the communicating pipe 4, evenly-distributed press blocks 8 are contacted to the top of the packing gland 7, a threaded rod 9 is rotatably connected to the top of the press blocks 8, the bottom of the threaded rod 9 sequentially penetrates through the press blocks 8, the first flange, the bottom threaded connection of threaded rod 9 has nut 10, the top of nut 10 and the bottom contact of second flange 3, through filling packing layer 6 to communicating pipe 4 in on the bedding and padding seat circle 5, the threaded rod rotates, utilize threaded rod 9 and nut 10's threaded connection, reduce the distance of 9 tops of threaded rod and first flange 2 and second flange 3, thereby drive briquetting 8 downstream, make gland 7 of bottom compress tightly downwards between briquetting 8, 6 compaction with the packing layer, thereby to sealing up communicating pipe 4 in the valve port, let the sealed effect of filler department better, avoid filler department to reveal and lead to machine fault, user's use has been made things convenient for.

Further, evenly distributed's draw-in groove 11 is seted up at gland 7's top, and briquetting 8 is close to gland 7's one end and draw-in groove 11 joint, through briquetting 8 and the draw-in groove 11 joint on the gland 7, when threaded rod 9 rotates and contacts with briquetting 8, prevents that briquetting 8 from following threaded rod 9 and rotating and gland 7 break away from, guarantees that briquetting 8 can play the effect of compressing tightly to gland 7.

Further, evenly distributed's hexagonal groove 12 is seted up to the bottom of second flange 3, and the top and the hexagonal groove 12 scarf joint of nut 10, the bottom of threaded rod 9 run through and extend to the bottom of nut 10, through the scarf joint of nut 10 with hexagonal groove 12, when threaded rod 9 rotated, nut 10 can not be owing to follow threaded rod 9 with the threaded connection of threaded rod 9 and rotate, avoided nut 10 to skid.

Further, the quantity of briquetting 8 is three at least, makes the atress at gland 7 top more even through three and three more than briquetting 8, guarantees gland 7 and can not incline at the removal in-process and cause the hindrance for the structure is more stable.

Further, the cover is equipped with on the threaded rod 9 and rather than the contact ring 13 of rotating the connection, contact ring 13 is located the top of briquetting 8, contact ring 13's bottom and the top contact of briquetting 8, when threaded rod 9 rotates, 9 tops of threaded rod descend, keep apart between the top of threaded rod 9 and briquetting 8 through contact ring 13, prevent top and the 8 direct contact of briquetting of threaded rod 9, lead to threaded rod 9 to rotate the difficulty, because contact ring 13 rotates with threaded rod 9 to be connected, briquetting 8 is to the friction of threaded rod 9 when reducing threaded rod 9 to descend more, and is labor-saving, and the use of user is facilitated.

Further, the spring 14 has been cup jointed on gland 7, the top and gland 7 fixed connection of spring 14, the bottom of spring 14 and the top fixed connection of second flange 3, spring 14 belongs to the compression state under the condition of not atress, elasticity through spring 14, make gland 7 have decurrent power all the time, when packing layer 6 has the gap, drive gland 7 that can be timely through spring 14 moves down, carry out interim sealed processing, user's use has been made things convenient for.

The working principle is as follows: through filling packing layer 6 to on the bedding and padding seat circle 5 in communicating pipe 4, the threaded rod rotates, utilize threaded rod 9 and nut 10's threaded connection, and the scarf joint of nut 10 and hexagonal groove 12, reduce the distance of threaded rod 9 top and first flange 2 and second flange 3, because briquetting 8 cup joints in threaded rod 9 and with the draw-in groove 11 joint on gland 7, thereby can drive briquetting 8 downstream through the contact ring 13 at briquetting 8 top, make gland 7 of bottom compress tightly downwards between the briquetting 8, with 6 compactions of packing layer, thereby seal the valve port in communicating pipe 4, let the sealed effect of filler department better, avoid filler department to reveal and lead to the machine trouble, user's use has been made things convenient for.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an anti erosion nanometer toughening pottery double valve plate gate valve, includes pneumatic support (1), its characterized in that: the bottom fixedly connected with first flange (2) of pneumatic support (1), bolt fixedly connected with second flange (3) is passed through to the bottom of first flange (2), the bottom fixedly connected with communicating pipe (4) of second flange (3), the interior diapire fixedly connected with bedding and padding seat circle (5) of communicating pipe (4), the top of bedding and padding seat circle (5) sets up the contact has packing layer (6), the top sliding connection of first flange (2) has gland (7), the bottom of gland (7) runs through first flange (2), second flange (3) and communicating pipe (4) in proper order and extends to the inside of communicating pipe (4), the top contact of gland (7) has evenly distributed's briquetting (8), the top of briquetting (8) is rotated and is connected with threaded rod (9), the bottom of threaded rod (9) runs through briquetting (8) in proper order, First flange (2) and second flange (3) and extend to the bottom of second flange (3), the bottom threaded connection of threaded rod (9) has nut (10), the top of nut (10) and the bottom contact of second flange (3).

2. The erosion resistant nano toughened ceramic double valve plate gate valve of claim 1, wherein: evenly distributed's draw-in groove (11) are seted up at the top of gland (7), the one end that briquetting (8) are close to gland (7) is with draw-in groove (11) joint.

3. The erosion resistant nano toughened ceramic double valve plate gate valve of claim 1, wherein: hexagonal groove (12) evenly distributed are seted up to the bottom of second flange (3), the top and hexagonal groove (12) scarf joint of nut (10), the bottom of threaded rod (9) is run through and is extended to the bottom of nut (10).

4. The erosion resistant nano toughened ceramic double valve plate gate valve of claim 1, wherein: the number of the pressing blocks (8) is at least three.

5. The erosion resistant nano toughened ceramic double valve plate gate valve of claim 1, wherein: the threaded rod (9) is sleeved with a contact ring (13) which is rotatably connected with the threaded rod, the contact ring (13) is located at the top of the pressing block (8), and the bottom of the contact ring (13) is in contact with the top of the pressing block (8).

6. The erosion resistant nano toughened ceramic double valve plate gate valve of claim 1, wherein: the packing gland (7) is sleeved with a spring (14), the top of the spring (14) is fixedly connected with the packing gland (7), and the bottom of the spring (14) is fixedly connected with the top end of the second flange (3).

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