CN211624218U

CN211624218U - Pneumatic split butterfly valve

Info

Publication number: CN211624218U
Application number: CN202020195559.5U
Authority: CN
Inventors: 郑斌
Original assignee: Suzhou Zhengzhao Machinery Co ltd
Current assignee: Suzhou Zhengzhao Machinery Co ltd
Priority date: 2020-02-23
Filing date: 2020-02-23
Publication date: 2020-10-02
Anticipated expiration: 2030-02-23

Abstract

The utility model discloses a pneumatic split type butterfly valve, including excircle cover, two half butterfly valve subassemblies that the structure is the same, adapter sleeve and revolving cylinder, the both ends opening of excircle cover is detachable cartridge respectively has corresponding half butterfly valve subassembly, half butterfly valve subassembly includes the round hole base, fixes the flange adapter sleeve at round hole base up end and installs the disc valve gap of terminal surface under the round hole base, the lower terminal surface both sides fixed mounting of round hole base has spacing stop block seat, and the lower terminal surface of spacing stop block seat is provided with the half slot, the both sides of disc valve gap are extended there is the semicircle axle sleeve of normal running fit in the half slot. The rotary cylinder in the utility model drives the two half butterfly valve components to swing together, thereby changing the structure that the transmission split butterfly valve is divided into the active valve and the passive valve, the assembly and the splicing are convenient, the driving is flexible and reliable, and the stability and the reliability are good; the service life of the whole rotary cylinder is prolonged, and the service stability of the whole rotary cylinder is improved.

Description

Pneumatic split butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is a pneumatic split type butterfly valve.

Background

The traditional split butterfly valve (alpha, beta valve) mainly comprises an active valve and a passive valve, is used for closed and sterile material conveying, avoids cross contamination, and effectively protects operating personnel and operating environment. The device is suitable for loading, unloading, batching, crushing, sampling and the like under a closed condition.

Because the split butterfly valve adopts a structure consisting of the active valve and the passive valve, after long-term use, the integral operation stability is poor, and the driving is not flexible enough; in addition, the opening and closing of most split butterfly valves need manual operation, and the use is not convenient enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic split type butterfly valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a pneumatic split butterfly valve comprises an outer circular sleeve, two half butterfly valve components with the same structure, a connecting sleeve and a rotary cylinder, openings at two ends of the outer circular sleeve are respectively detachably inserted with corresponding half butterfly valve components, each half butterfly valve component comprises a round hole base, a flange connecting sleeve fixed on the upper end surface of the round hole base and a disc valve cover arranged on the lower end surface of the round hole base, the two sides of the lower end surface of the round hole base are fixedly provided with a limiting block seat, the lower end surface of the limiting block seat is provided with a semicircular groove, the two sides of the disk valve cover extend to form semicircular shaft sleeves which are rotatably matched in the semicircular grooves, the semicircular shaft sleeves are provided with embedded grooves, the inner wall of the outer circular sleeve is provided with two limiting mounting grooves which are used for being matched with the limiting stop block seats in an inserting mode, a rotating shaft is arranged in the limiting mounting grooves in a rotating mode, and the inner side end of the rotating shaft is fixedly connected with an embedding block which is used for being matched with the embedding grooves in a limiting mode;

the two ends of the connecting sleeve are respectively and fixedly connected with the side wall of the outer circular sleeve and the outer wall of the cylinder shell of the rotary cylinder through the connecting seat plate, and the end part of the output shaft of the rotary cylinder is connected with the outer side end of one of the rotating shafts in a plug-in fit mode.

Preferably, the medial surface of spacing dog seat has still seted up the semicircle spacing groove, the both sides of disc valve gap still extend and are used for rotating the semicircle stop collar of inlaying the dress in the semicircle spacing inslot, and one of them semicircle inslot has still seted up the flexible hole, still inlays in the flexible hole to be equipped with and is used for stretching into the warhead of inlaying the inslot, and the medial extremity of warhead passes through the spring and is connected with the inside conflict of flexible hole.

Preferably, a rubber sealing ring is further embedded in the overlapping surface of the disc valve cover.

Preferably, the middle of the inner wall of the outer circle sleeve is also convexly provided with a step ring, and the outer circle of the lower end face of the round hole base is provided with a step groove matched with the step ring.

Preferably, still distribute on the excircle cover and install two pairs of locking mechanism that distribute from top to bottom, every locking mechanism has two locking mechanism that distribute around having, locking mechanism includes that the screw thread wears to establish the locking bolt on the excircle cover, the fixed bolt cover in the locking bolt outside and the post of inserting of the extension of locking bolt medial extremity, the articulated handle of screwing that has on the bolt cover, offer on the circumference outer wall of round hole base and be used for supplying to insert post male locking slot.

Preferably, two parallel cylinder cavities are arranged in a cylinder shell of the rotary cylinder, an air nozzle hole and an air vent which are respectively communicated with two ends of the cylinder cavity are formed in the cylinder shell, a rack is arranged in the cylinder cavity, two ends of the rack are respectively connected with and provided with a piston which is arranged in the cylinder cavity in a sliding mode, an output shaft is further rotatably arranged in the middle of the inside of the cylinder shell, and a gear which is used for being meshed with the two racks is fixedly sleeved on the output shaft.

Preferably, the rack is a square rack, and a limiting seat for guiding and limiting the square rack is fixed in the cylinder cavity.

Preferably, the both ends screw-thread fit of rack is fixed with the bolt post, and the outside end of bolt post extends has the awl cap of cartridge, the cartridge hole has been seted up to the terminal surface of piston, and the inside of piston corresponds the cartridge hole and is provided with the awl cap chamber, the awl cap of cartridge passes the cartridge hole and places in the awl cap intracavity, leave the clearance between the circumference outer wall of the awl cap of cartridge and the awl cap chamber, leave the activity space between the outer wall of bolt post and the downthehole wall of cartridge.

Compared with the prior art, the beneficial effects of the utility model are that: the rotary cylinder in the utility model drives the two half butterfly valve components to swing together, thereby changing the structure that the transmission split butterfly valve is divided into the active valve and the passive valve, the assembly and the splicing are convenient, the driving is flexible and reliable, and the stability and the reliability are good; after the two half butterfly valve assemblies are respectively inserted into the openings at the two ends of the outer circular sleeve, the screwing handle of each group is rotated, so that the inserting columns are inserted into the locking slots, the corresponding half butterfly valve assemblies can be locked, the locking is reliable and stable, and the operation is simple and convenient; even if motion resistance is generated between the rack and the gear, the piston cannot deviate from the central axis of the cylinder cavity due to pressure, the friction force between the cylinder cavity and the piston is reduced, and the overall service life of the cylinder is prolonged.

Drawings

FIG. 1 is a schematic perspective view of an assembled pneumatic split butterfly valve;

FIG. 2 is a schematic view of a three-dimensional explosion structure of a pneumatic split butterfly valve with a rotary cylinder removed;

FIG. 3 is a schematic perspective view of a half butterfly valve assembly in a pneumatic split butterfly valve;

fig. 4 is a schematic structural diagram of the inside of a rotary cylinder in a pneumatic split butterfly valve.

In the figure: 1-outer circular sleeve, 11-step ring, 12-limit mounting groove, 13-embedded block, 14-rotating shaft, 15-rotating disk, 151-opening hole, 152-closing hole, 2-semi-butterfly valve component, 21-flange connecting sleeve, 22-round hole base, 23-locking slot, 24-limit stop block seat, 25-semicircular groove, 26-disk valve cover, 261-semicircular shaft sleeve, 262-embedded groove, 263-semicircular limiting sleeve, 264-semicircular limiting groove, 27-step groove, 28-rubber sealing ring, 3-locking mechanism, 31-locking bolt, 311-plug column, 32-bolt sleeve, 33-screwing handle, 4-connecting sleeve, 41-connecting seat plate, 5-rotating cylinder, 51-cylinder shell, 511-cylinder cavity, 52-output shaft, 53-gear, 54-rack, 55-limit seat, 56-piston, 561-cone cap cavity, 57-bolt column, 571-plug-in cone cap, 58-vent hole, 59-air nozzle hole.

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 to 4, the present invention provides a technical solution: a pneumatic split butterfly valve comprises an excircle sleeve 1, two half butterfly valve components 2 with the same structure, a connecting sleeve 4 and a rotary cylinder 5, wherein openings at two ends of the excircle sleeve 1 are respectively detachably inserted with the corresponding half butterfly valve components 2, each half butterfly valve component 2 comprises a round hole base 22, a flange connecting sleeve 21 fixed on the upper end surface of the round hole base 22 and a disc valve cover 26 arranged on the lower end surface of the round hole base 22, limit stop block seats 24 are fixedly arranged at two sides of the lower end surface of the round hole base 22, a semicircular groove 25 is arranged on the lower end surface of each limit stop block seat 24, semicircular shaft sleeves 261 rotatably matched in the semicircular grooves 25 extend from two sides of the disc valve cover 26, embedded grooves 262 are arranged on the semicircular shaft sleeves 261, two limit mounting grooves 12 rotatably matched with the limit stop block seats 24 in an inserting manner are arranged on the inner wall of the excircle sleeve 1, and a rotary shaft 14 is arranged on the limit mounting, the inner side end of the rotating shaft 14 is fixedly connected with an embedding block 13 which is used for limiting and matching with the embedding groove 262;

two ends of the connecting sleeve 4 are respectively and fixedly connected with the side wall of the outer circular sleeve 1 and the outer wall of the cylinder shell 51 of the rotary cylinder 5 through the connecting seat plate 41, and the end part of an output shaft 52 of the rotary cylinder 5 is connected with the outer side end of one rotary shaft 14 in a plug-in fit mode.

During the use, with two half butterfly valve subassemblies 2 respectively cartridge into the both ends opening of excircle cover 1, the disc valve gap 26 of two half butterfly valve subassemblies 2 is folded each other and is in the same place, semicircle axle sleeve 261 of top and the semicircle axle sleeve 261 formation cladding of below are the circle axle sleeve on inlaying the dress piece 13, at this moment, start revolving cylinder 5, revolving cylinder 5's output shaft 52 drives the rotation axis 14 in proper order, inlay the dress piece 13 and rotate, thereby drive two coincide's disc valve gap 26 and swing jointly, thereby open the passageway, make the flange adapter sleeve 21 of top and the flange adapter sleeve 21 intercommunication of below. The utility model provides a revolving cylinder 5 drives two half butterfly valve subassemblies 2 simultaneously and swings together, has changed the structure that the split type butterfly valve of transmission divide into active valve and passive valve, and the equipment amalgamation is convenient, and the drive is nimble reliable, has good stability and reliability.

The inner side end face of the limiting stopper seat 24 is further provided with a semicircular limiting groove 264, two sides of the disc valve cover 26 are further extended with a semicircular limiting sleeve 263 which is used for being rotatably embedded in the semicircular limiting groove 264, one semicircular groove 25 is further provided with a telescopic hole, a bullet 241 which is used for extending into the embedded groove 262 is further embedded in the telescopic hole, and the inner side end of the bullet 241 is in abutting connection with the inside of the telescopic hole through a spring. The overlapping surface of the disc valve cover 26 is also embedded with a rubber sealing ring 28. So that the two disc valve covers 26 are overlapped more closely.

Before the two half butterfly valve assemblies 2 are assembled without being spliced, the warhead 241 can play a limiting role, so that the disc valve cover 26 is ensured to be kept in a horizontal closed state, and material leakage is effectively avoided. When the manual control mechanism 4 drives the two half butterfly valve assemblies 2 to swing, the disc valve cover 26 needs to overcome the elastic force of the spring to push the bullet 241 into the telescopic hole, so that the disc valve cover can further swing.

The middle of the inner wall of the outer circular sleeve 1 is also convexly provided with a step ring 11, and the outer circle of the lower end surface of the round hole base 22 is provided with a step groove 27 matched with the step ring 11. The structure design is reasonable, and the combination and the assembly are convenient.

Still distribute on the excircle cover 1 and install two pairs of locking mechanism 3 that distribute from top to bottom, every locking mechanism 3 has two locking mechanism 3 that distribute around, and locking mechanism 3 includes that the screw thread wears to establish locking bolt 31, the fixed bolt cover 32 in locking bolt 31 outside and the inserted column 311 that locking bolt 31 medial extremity extended on the excircle cover 1, it has the handle 33 of screwing to articulate on the bolt cover 32, offer on the circumference outer wall of round hole base 22 and be used for supplying inserted column 311 male locking slot 23. After the two half butterfly valve components 2 are respectively inserted into the openings at the two ends of the outer circular sleeve 1, the screwing handle 33 of each group is rotated, so that the inserting columns 311 are inserted into the locking slots 23, the corresponding half butterfly valve components 2 can be locked, the locking is reliable and stable, and the operation is simple and convenient.

Two parallel cylinder cavities 511 are arranged in a cylinder shell 51 of the rotary cylinder 5, an air nozzle hole 59 and an air vent 58 which are respectively communicated with two ends of the cylinder cavity 511 are formed in the cylinder shell 51, a rack 54 is arranged in the cylinder cavity 511, two ends of the rack 54 are respectively connected and installed with a piston 56 which is arranged in the cylinder cavity 511 in a sliding mode, an output shaft 52 is further rotatably installed in the middle of the inside of the cylinder shell 51, and a gear 53 which is used for being meshed with the two racks 54 is fixedly sleeved on the output shaft 52.

When the rotary cylinder 5 is started, one of the air nozzle holes 59 is ventilated, the other air nozzle hole 59 is exhausted, the two racks 54 are driven by air pressure to do transverse motion in opposite directions, so that the driving gear 53 rotates, the rotating gear 53 drives the output shaft 52, the rotating shaft 14 and the embedded block 13 to rotate in sequence, and the two overlapped disk valve covers 26 are driven to swing together.

The rack 54 is a square rack, and a limiting seat 55 for guiding and limiting the square rack is fixed in the cylinder cavity 511. By adopting the structural matching, the piston 56 can be effectively prevented from rotating relative to the cylinder cavity 511, and the use stability of the cylinder is ensured.

The two ends of the rack 54 are fixed with bolt columns 57 in a threaded fit mode, the outer side ends of the bolt columns 57 extend to form plug-in conical caps 571, plug-in holes are formed in the end face of the piston 56, conical cap cavities 561 are formed in the piston 56, corresponding to the plug-in holes, the plug-in conical caps 571 penetrate through the plug-in holes and are placed in the conical cap cavities 561, movable gaps are reserved between the outer circumferential walls of the plug-in conical caps 571 and the conical cap cavities 561, and movable spaces are reserved between the outer walls of the bolt columns 57 and the inner walls of the plug-in holes. Even if movement resistance is generated between the rack 54 and the gear 53, the piston 56 is not subjected to pressure to deviate from the central axis of the cylinder cavity 511, so that the friction force between the cylinder cavity 511 and the piston 56 is reduced, and the service life of the whole cylinder is prolonged.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented 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

1. The utility model provides a pneumatic split type butterfly valve which characterized in that: the butterfly valve comprises an outer circular sleeve (1), two half butterfly valve components (2) with the same structure, a connecting sleeve (4) and a rotary cylinder (5), wherein openings at two ends of the outer circular sleeve (1) are respectively detachably inserted with the corresponding half butterfly valve components (2), the half butterfly valve components (2) comprise a round hole base (22), a flange connecting sleeve (21) fixed on the upper end surface of the round hole base (22) and a disc valve cover (26) arranged on the lower end surface of the round hole base (22), limiting block seats (24) are fixedly arranged at two sides of the lower end surface of the round hole base (22), a semicircular groove (25) is arranged on the lower end surface of each limiting block seat (24), semicircular shaft sleeves (261) which are rotatably matched in the semicircular grooves (25) extend from two sides of the disc valve cover (26), embedded grooves (262) are arranged on the semicircular shaft sleeves (261), two limiting mounting grooves (12) which are used for being matched with the limiting block seats (24) in an inserting manner are arranged on the inner wall, a rotating shaft (14) is rotatably arranged in the limiting mounting groove (12), and the inner side end of the rotating shaft (14) is fixedly connected with an embedding block (13) which is used for limiting and matching with the embedding groove (262);

two ends of the connecting sleeve (4) are respectively fixedly connected with the side wall of the outer circular sleeve (1) and the outer wall of a cylinder shell (51) of the rotary cylinder (5) through a connecting seat plate (41), and the end part of an output shaft (52) of the rotary cylinder (5) is connected with the outer side end of one rotary shaft (14) in a plug-in fit mode.

2. The pneumatic split butterfly valve of claim 1, wherein: semicircle spacing groove (264) have still been seted up to the medial surface of spacing dog seat (24), the both sides of disc valve gap (26) still extend and are used for rotating to inlay semicircle spacing cover (263) of dress in semicircle spacing groove (264), and telescopic hole has still been seted up in one of them semicircle groove (25), still inlays in the telescopic hole to be equipped with and is used for stretching into bullet (241) of inlaying in dress groove (262), and the medial extremity of bullet (241) is passed through the spring and is contradicted with telescopic hole inside and be connected.

3. The pneumatic split butterfly valve of claim 1, wherein: and a rubber sealing ring (28) is embedded on the overlapping surface of the disc valve cover (26).

4. The pneumatic split butterfly valve of claim 1, wherein: still the protrusion is provided with step ring (11) in the middle of the inner wall of excircle cover (1), the lower extreme off-centre of round hole base (22) is offered and is used for with step ring (11) complex step groove (27).

5. The pneumatic split butterfly valve of claim 1, wherein: two pairs of locking mechanism (3) that distribute about still distributing on excircle cover (1), every locking mechanism (3) have two locking mechanism (3) that distribute around, locking mechanism (3) wear to establish locking bolt (31), the fixed bolt cover (32) of locking bolt (31) outside end and locking bolt (31) medial extremity extension in the locking bolt (31) on excircle cover (1) including the screw thread, articulated on bolt cover (32) have handle (33) of screwing, offer on the circumference outer wall of round hole base (22) and be used for supplying to insert post (311) male locking slot (23).

6. The pneumatic split butterfly valve of claim 1, wherein: two parallel cylinder cavities (511) are arranged in a cylinder shell (51) of the rotary cylinder (5), an air nozzle hole (59) and an air vent (58) which are respectively communicated with two ends of the cylinder cavity (511) are formed in the cylinder shell (51), a rack (54) is arranged in the cylinder cavity (511), two ends of the rack (54) are respectively connected and installed with a piston (56) which is arranged in the cylinder cavity (511) in a sliding mode, an output shaft (52) is further rotatably installed in the middle of the inside of the cylinder shell (51), and a gear (53) which is used for being meshed with the two racks (54) is fixedly sleeved on the output shaft (52).

7. The pneumatic split butterfly valve of claim 6, wherein: the rack (54) adopts a square rack, and a limiting seat (55) for guiding and limiting the square rack is fixed in the cylinder cavity (511).

8. The pneumatic split butterfly valve of claim 6, wherein: the bolt column (57) is fixed at two ends of the rack (54) in a threaded fit mode, an insertion conical cap (571) extends from the outer end of the bolt column (57), an insertion hole is formed in the end face of the piston (56), a conical cap cavity (561) is arranged in the piston (56) corresponding to the insertion hole, the insertion conical cap (571) penetrates through the insertion hole and is placed in the conical cap cavity (561), a movable gap is reserved between the outer wall of the circumference of the insertion conical cap (571) and the conical cap cavity (561), and a movable space is reserved between the outer wall of the bolt column (57) and the inner wall of the insertion hole.