CN214662130U

CN214662130U - Self-balancing sealing blind plate valve

Info

Publication number: CN214662130U
Application number: CN202120303039.6U
Authority: CN
Inventors: 袁晓义
Original assignee: Chongqing Iron and Steel Co Ltd
Current assignee: Chongqing Iron and Steel Co Ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-11-09
Anticipated expiration: 2031-02-03

Abstract

The utility model provides a self-balancing sealing blind plate valve, which comprises a valve body, set up the valve plate subassembly in the valve body, a clamp ring for compressing tightly the valve plate subassembly, a balanced adjusting part for driving the clamp ring and remove the hold-down mechanism and be used for balanced hold-down force, the front portion and the rear portion of valve body have the main pipe through-hole to opening, the valve plate subassembly can the back-and-forth movement in order to switch between open valve and close valve state, the clamp ring cover is established at the valve body rear portion, and be connected with the valve body through the bellows, balanced adjusting part's one end can be dismantled with hold-down mechanism's front end and be connected, the other end cooperates with the clamp ring sphere. The utility model discloses can the automatically regulated clamp ring terminal surface with the sealed face's of valve plate depth of parallelism to reach and compress the effect of clamp ring with balanced power volume, make the blind plate valve implement the gas wall in-process, realize that the valve plate is quick, effectively sealed safely, cut off the gas flow.

Description

Self-balancing sealing blind plate valve

Technical Field

The utility model belongs to the technical field of gas transmission pipe network, especially, relate to a self-balancing sealed blind plate valve.

Background

In the production fields of steel making, iron making, coking, chemical industry, medicine and the like, a plurality of various gas conveying pipe networks are generally used, such as a gas pipe network, a blind plate valve for cutting off gas is arranged on the pipe network, and the gas is effectively cut off, so that the pipe network and equipment behind the valve can be safely overhauled. However, in the process of implementing gas isolation by using the existing blind plate valve, the sealing reliability of the valve plate is easy to deteriorate due to long-term use, and effective sealing is difficult to guarantee, so that gas in the valve cavity leaks out of the valve body, the field environment is affected, and potential safety hazards are caused. Meanwhile, if the tightness is deteriorated, the leakage condition of the gate valve occurs, the air tightness cannot be guaranteed, and the pipeline maintenance and production are affected.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's shortcoming, an object of the utility model is to provide a self-balancing sealing blind plate valve for solve among the prior art blind plate valve realize effective sealed difficulty, can't cut off the problem that gas flows.

For realize above-mentioned purpose and other relevant mesh, the utility model provides a self-balancing sealing blind plate valve, including the valve body, set up in valve plate subassembly in the valve body, be used for compressing tightly valve plate subassembly's clamp ring, be used for the drive the hold-down mechanism that removes about the clamp ring and be used for the balanced adjusting part of balanced closing force, the anterior and the rear portion of valve body have the main pipe through-hole to the run-on, the valve plate subassembly can the back-and-forth movement in order to switch between open valve and the close valve state, the clamp ring cover is established at the valve body rear portion, and through the bellows with the valve body is connected, balanced adjusting part's one end with the connection can be dismantled to hold-down mechanism's front end, the other end with the cooperation of clamp ring sphere.

Further, hold-down mechanism includes power part, ring gear, drive gear group and connecting rod group, the ring gear cover is located on the valve body and is rotated by the power part drive, drive gear group includes along ring gear circumference equipartition and a plurality of gears of being connected with the ring gear meshing, connecting rod group includes with a plurality of the connecting rod that the gear corresponds, and each the rear end of connecting rod links firmly with the gear that corresponds, with by the ring gear drives a plurality of gears and the connecting rod is rotatory.

Further, hold-down mechanism still including set up in a plurality of set nut along circumference equipartition on the valve body, set nut with the connecting rod one-to-one, and be located between gear and the clamp ring, each set nut passes through packing ring and lock nut locking on the valve body, the connecting rod is worn to establish in the set nut and rather than threaded connection.

Further, a push handle is arranged on the gear ring and hinged with the output end of the power part.

Further, the power part is an oil cylinder, a cylinder head of the oil cylinder is connected with the push handle through a pin shaft, and a cylinder body of the oil cylinder is installed on the cylinder seat.

Further, the balance adjustment assembly comprises a ball hinge seat, a ball head rod and a gland, the ball hinge seat corresponds to the connecting rods, the ball hinge seat is fixed at the rear end of the compression ring through the gland, the front end of the ball head rod is provided with a ball head part, the ball head part is limited in the ball hinge seat through the gland and can perform spherical motion, and the rear end of the ball head rod is detachably connected with the front ends of the connecting rods through a connecting sleeve.

Further, the valve plate assembly comprises a valve plate and sliding rails detachably connected to the upper end and the lower end of the valve plate, a plurality of travelling wheels capable of rotating are mounted on the valve body through a support, and the valve plate moves back and forth on the travelling wheels through the sliding rails.

Further, the valve plate is rectangle, be equipped with on the valve plate with be responsible for valve plate through-hole and the blind flange of through-hole looks adaptation, just all be provided with the sealing washer on valve plate through-hole and the blind flange.

Further, a sealing ring is arranged between the left side of the valve plate and the valve body, and a sealing ring is arranged between the right side of the valve plate and the compression ring.

Further, the self-balancing sealing blind plate valve further comprises a valve plate driving piece for driving the valve plate assembly to move back and forth, and the valve plate driving piece adopts an oil cylinder or a motor.

As the above, the utility model discloses a blind plate valve is sealed to self-balancing has following beneficial effect:

the parallelism between the end face of the compression ring and the sealing surface of the valve plate can be automatically adjusted through spherical surface matching between the balance adjusting assembly and the compression ring, so that the effect of compressing the compression ring with uniform force is achieved, and the valve plate is quickly, safely and effectively sealed and the gas flow is blocked in the process of implementing gas blocking by the blind plate valve; furthermore, the connecting rod is connected with the ball head rod through a connecting sleeve, so that the ball head rod can be conveniently replaced at any time; be provided with wear-resisting slide rail on the valve plate, can improve valve plate life, make the valve plate motion more nimble, and be convenient for change.

Drawings

Fig. 1 is a structural cross-sectional view of a self-balancing sealing blind plate valve provided in an embodiment of the present invention;

FIG. 2 is a schematic view of a connection structure between the power member and the gear ring of the present invention;

fig. 3 is an enlarged view of the dashed box in fig. 1.

Description of the reference numerals

10-a valve body; 11-main tube through hole;

20-a valve plate assembly; 21-a valve plate; 22-a slide rail; 23-a support; 24-a travelling wheel; 25-a sealing ring;

30-a compression ring;

40-a pressing mechanism; 401-support ring; 402-a ring gear; 403-gear wheel; 404-a connecting rod; 405-a positioning nut; 406-a washer;

407-locking nut; 408-a power member; 408 a-cylinder head; 409-a push handle; 410-pin shaft; 411-cylinder base;

50-a balance adjustment assembly; 51-a ball hinge mount; 52-a gland; 53-ball-head stem; 54-a connecting sleeve;

60-bellows.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Please refer to fig. 1 to 3, the utility model provides a self-balancing sealing blind plate valve, including valve body 10, set up in valve plate subassembly 20 in the valve body 10, be used for compressing tightly clamp ring 30 of valve plate subassembly 20, be used for the drive hold-down mechanism 40 that the clamp ring 30 moved about and be used for the balanced adjusting part 50 of balanced holding force, the front portion and the rear portion of valve body 10 have the person in charge through-hole 11 to the run-on, valve plate subassembly 20 can the back-and-forth movement in order to switch between the open valve and the closed valve state, clamp ring 30 cover is established at the valve body 10 rear portion, and through bellows 60 with valve body 10 is connected, the one end of balanced adjusting part 50 with the front end of clamp mechanism 40 can be dismantled and be connected, the other end with clamp ring 30 spherical cooperation.

The balance adjusting assembly 50 is connected to hold-down mechanism 40 front end, and through the spherical surface cooperation between balance adjusting assembly 50 and the clamp ring 30, when hold-down mechanism 40 compresses tightly clamp ring 30, can automatically regulated clamp ring 30 terminal surface and the sealed face's of valve plate 21 depth of parallelism to reach the effect of compressing tightly clamp ring 30 with balanced power volume, can make the blind plate valve implement the gas wall in-process, realize that valve plate 21 is quick, effectively sealed safely, cut off gaseous flow.

The pressing mechanism 40 comprises a power piece 408, a gear ring 402, a transmission gear set and a connecting rod set, a support ring 401 is sleeved on the valve body 10, the support ring 401 can be connected with the valve body 10 in a welding or screwing mode, and the gear ring 402 is sleeved on the support ring 401 and driven by the power piece 408 to rotate. The ring gear 402 may be comprised of two half-rings for assembly. The transmission gear set comprises a plurality of gears 403 which are uniformly distributed along the circumferential direction of the gear ring 402 and are in meshed connection with the gear ring 402, the connecting rod set comprises a plurality of connecting rods 404 corresponding to the gears 403, and the rear ends of the connecting rods 404 are fixedly connected with the corresponding gears 403, so that the gear ring 402 drives the gears 403 and the connecting rods 404 to rotate. In this embodiment, the rear end of the connecting rod 404 is keyed to fit with the gear 403 to ensure a reliable connection. When the ring gear 402 rotates, the plurality of gears 403 engaged therewith and the connecting rod 404 connected to the gears 403 are caused to rotate synchronously.

The pressing mechanism 40 further comprises a plurality of positioning nuts 405 which are arranged on the valve body 10 and are uniformly distributed along the circumferential direction, the positioning nuts 405 correspond to the connecting rods 404 one by one and are located between the gear 403 and the pressing ring 30, each positioning nut 405 is locked on the valve body 10 through a washer 406 and a locking nut 407, and the connecting rods 404 are arranged in the positioning nuts 405 in a penetrating mode and are connected with the positioning nuts in a threaded mode. With the structure, when the gear ring 402 rotates, the connecting rod 404 is driven to move axially in the rotating process, so that the compression ring 30 is driven to move left and right. When the valve plate 21 needs to be locked, the connecting rod 404 pushes the balance adjusting assembly 50 to move the compression ring 30 towards the direction close to the valve plate 21, so that the compression ring 30 compresses the valve plate 21; when it is desired to unlock the valve plate 21 so that it can move back and forth, the connecting rod 404 pulls the balance adjustment assembly 50 to move the compression ring 30 away from the valve plate 21, thereby disengaging the compression ring 30 from the valve plate 21.

In order to drive the gear ring 402 to rotate, a push handle 409 is arranged on the gear ring 402, and the push handle 409 is hinged with the output end of the power piece 408. The power member 408 is an oil cylinder, a cylinder head 408a of the oil cylinder is connected with the push handle 409 through a pin shaft 410, and a cylinder body of the oil cylinder is installed on a cylinder seat 411. Through the reciprocating action of the piston rod of the oil cylinder, the push handle 409 is driven to enable the gear ring 402 to rotate clockwise or anticlockwise, so that the connecting rod 404 reciprocates axially, and the compression ring 30 is driven to move left and right.

The balance adjusting assembly 50 comprises a spherical hinge seat 51, a spherical head rod 53 and a gland 52 corresponding to the connecting rods 404, the spherical hinge seat 51 is fixed at the rear end of the compression ring 30 through the gland 52, and the gland 52 is connected with the compression ring 30 through bolts; and the front end of the ball head rod 53 is provided with a ball head part which is limited in the ball hinge seat 51 by the gland 52 and can do spherical motion, and the rear end of the ball head rod 53 is detachably connected with the front end of the connecting rod 404 through the connecting sleeve 54. Specifically, the connecting holes used for connecting the rear end of the ball rod 53 and the front end of the connecting rod 404 are respectively formed in the two ends of the connecting sleeve 54, the connecting holes are penetrated through bolts, the ball rod 53 can be connected with the connecting rod 404, the structure facilitates replacement of the ball rod 53 according to use conditions, and maintenance is facilitated. When the end face of the compression ring 30 is not parallel to the sealing surface of the valve plate 21, after the compression ring 30 contacts the valve plate 21 at a certain point, the parallelism between the compression ring 30 and the valve plate 21 can be automatically adjusted through the spherical hinge seat 51 and the spherical head rod 53, so that balanced force is achieved to compress the compression ring 30 and the valve plate 21, and further the valve plate 21 and the valve body 10 are compressed, and the problem that the compression ring 30 is not parallel to the valve plate 21 in actual work is solved.

The valve plate assembly 20 comprises a valve plate 21 and slide rails 22 detachably connected to the upper end and the lower end of the valve plate 21, a plurality of rotatable travelling wheels 24 are mounted on the valve body 10 through a support 23, and the valve plate 21 moves back and forth on the travelling wheels 24 through the slide rails 22. By adopting the structure, the service life of the valve plate 21 can be prolonged by arranging the wear-resistant slide rail 22 on the valve plate 21, so that the valve plate 21 can move more flexibly; moreover, the slide rail 22 is connected with the valve plate 21 through bolts, so that the slide rail 22 can be replaced conveniently according to the use condition.

The valve plate 21 is rectangle, be equipped with along its length direction on the valve plate 21 with be responsible for valve plate 21 through-hole and the blind flange of through-hole 11 looks adaptation, just all be provided with sealing washer 25 on valve plate 21 through-hole and the blind flange. When the valve plate 21 is in the valve opening state, the valve plate 21 is moved to align the through hole of the valve plate 21 on the valve plate with the through hole 11 of the main pipe, so that the internal medium is conducted; when in the valve-closed state, the valve plate 21 is moved so that the blind plate thereon is aligned with the main pipe through-hole 11 to block the internal medium.

In order to ensure the sealing performance between the valve plate 21 and the valve body 10 and between the valve plate 21 and the compression ring 30, a sealing ring 25 is arranged between the left side of the valve plate 21 and the valve body 10, and a sealing ring 25 is arranged between the right side of the valve plate 21 and the compression ring 30.

The clamp ring 30 is connected to the valve body 10 via a bellows 60, and in this embodiment, a welded connection may be used. The compression ring 30 can move left and right on the valve body 10 along the axial direction, when the compression ring 30 moves left (moves towards the direction close to the valve plate 21), the compression ring is compressed on the valve plate 21 through the sealing ring 25, and the valve plate 21 is compressed on the valve seat of the valve body 10 through the sealing ring 25, so that the gas in the pipeline is isolated from the outside; when the clamp ring 30 moves to the right (in a direction away from the valve plate 21), the valve plate 21 can be moved back and forth by a driving member of the valve plate 21, which may be an oil cylinder or a motor.

In summary, in the self-balancing sealing blind plate valve provided by the embodiment of the present invention, the spherical surface between the balance adjusting assembly and the clamp ring is matched, so that the parallelism between the end surface of the clamp ring and the sealing surface of the valve plate can be automatically adjusted, and the effect of pressing the clamp ring with a uniform force is achieved, so that the blind plate valve realizes the quick and safe effective sealing of the valve plate and the separation of the gas flow in the process of implementing the gas separation; furthermore, the connecting rod is connected with the ball head rod through a connecting sleeve, so that the ball head rod can be conveniently replaced at any time; be provided with wear-resisting slide rail on the valve plate, can improve valve plate life, make the valve plate motion more nimble, and be convenient for change.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a self-balancing seals blind plate valve which characterized in that: including the valve body, set up in valve plate subassembly in the valve body, be used for compressing tightly the clamp ring of valve plate subassembly, be used for the drive the hold-down mechanism that the clamp ring removed and be used for the balanced adjustment subassembly of balanced holding power, the front portion and the rear portion of valve body have the main pipe through-hole to opening, the valve plate subassembly can the back-and-forth movement in order to switch between open valve and close valve state, the clamp ring cover is established at the valve body rear portion, and through the bellows with the valve body is connected, balanced adjustment subassembly's one end with hold-down mechanism's front end can be dismantled and be connected, the other end with the cooperation of clamp ring sphere.

2. The self-balancing sealing blind plate valve according to claim 1, characterized in that: hold-down mechanism includes power spare, ring gear, drive gear group and connecting rod group, the ring gear cover is located on the valve body and is rotated by the power spare drive, drive gear group includes along ring gear circumference equipartition and a plurality of gears of being connected with the ring gear meshing, connecting rod group includes with a plurality of connecting rods that the gear corresponds, and each the rear end of connecting rod links firmly with the gear that corresponds, with by the ring gear drives a plurality of gears and the connecting rod is rotatory.

3. The self-balancing sealing blind plate valve according to claim 2, characterized in that: hold-down mechanism still including set up in a plurality of set nut along circumference equipartition on the valve body, set nut with the connecting rod one-to-one, and be located between gear and the clamp ring, each set nut passes through packing ring and lock nut locking on the valve body, the connecting rod is worn to establish among the set nut and rather than threaded connection.

4. The self-balancing sealing blind plate valve according to claim 2, characterized in that: the gear ring is provided with a push handle, and the push handle is hinged with the output end of the power part.

5. The self-balancing sealing blind plate valve according to claim 4, wherein: the power part is an oil cylinder, the cylinder head of the oil cylinder is connected with the push handle through a pin shaft, and the cylinder body of the oil cylinder is arranged on the cylinder base.

6. The self-balancing sealing blind plate valve according to claim 2, characterized in that: the balance adjusting assembly comprises a spherical hinge seat, a spherical head rod and a gland, the spherical hinge seat corresponds to the connecting rods, the spherical hinge seat is fixed at the rear end of the compression ring through the gland, the front end of the spherical head rod is provided with the spherical head part, the spherical head part is limited in the spherical hinge seat through the gland and can move in a spherical surface mode, and the rear end of the spherical head rod is detachably connected with the front end of the connecting rod through a connecting sleeve.

7. The self-balancing sealing blind plate valve according to claim 1, characterized in that: the valve plate assembly comprises a valve plate and sliding rails detachably connected to the upper end and the lower end of the valve plate, a plurality of travelling wheels capable of rotating are mounted on the valve body through a support, and the valve plate moves back and forth on the travelling wheels through the sliding rails.

8. The self-balancing sealing blind plate valve according to claim 7, wherein: the valve plate is rectangle, be equipped with on the valve plate with be responsible for valve plate through-hole and the blind flange of through-hole looks adaptation, just all be provided with the sealing washer on valve plate through-hole and the blind flange.

9. The self-balancing sealing blind plate valve according to claim 7, wherein: the left side of valve plate with be provided with the sealing washer between the valve body, the right side of valve plate with be provided with the sealing washer between the clamp ring.

10. The self-balancing sealing blind plate valve according to claim 1, characterized in that: the self-balancing sealing blind plate valve further comprises a valve plate driving piece for driving the valve plate assembly to move back and forth, and the valve plate driving piece adopts an oil cylinder or a motor.