CN214534548U

CN214534548U - Hard seal butterfly valve with interchangeable seals

Info

Publication number: CN214534548U
Application number: CN202120677125.3U
Authority: CN
Inventors: 周晓鹏
Original assignee: Comsat Automation Group Co ltd
Current assignee: Comsat Automation Group Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-10-29
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a sealed interchangeable hard seal butterfly valve, including valve body, card pearl, slide bar and valve clack, one side of valve body is provided with the transmission shaft, the card pearl sets up the inside at the transmission shaft, the inside through connection of transmission shaft has the gag lever post, coupling spring has been cup jointed to the outer wall of gag lever post, transmission shaft through connection is in the inside of bull stick. The outer wall size of this sealed interchangeable hard seal butterfly valve's two sets of card pearls is identical with the inside arc draw-in groove of seting up of bull stick, and the junction contained angle between gag lever post and the transmission shaft is 90, and be threaded connection between transmission shaft and the gag lever post, cup joint the bull stick at the outer wall of transmission shaft, rotate the gag lever post again, make the gag lever post remove to the inside of transmission shaft, extrude two sets of card pearls through the gag lever post, make two sets of card pearls and the inside arc draw-in groove looks block of seting up of bull stick, so that fix the bull stick, play the effect that prevents the bull stick and drop.

Description

Hard seal butterfly valve with interchangeable seals

Technical Field

The utility model relates to a butterfly valve device technical field sealed firmly specifically is a sealed interchangeable butterfly valve sealed firmly.

Background

The hard sealing butterfly valve is also called as flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline medium, and the hard sealing butterfly valve mainly has the functions of cutting off and throttling on the pipeline, and can be used for making mutual conversion of soft sealing and hard sealing, and can be extensively used on the pipelines for conveying various corrosive and non-corrosive fluid media in producer, gas, steam, natural gas, city gas, cold and hot air, chemical smelting engineering and power generation environment-protecting system, and can be used for regulating and cutting off flow of medium.

The sealed interchangeable sealed butterfly valve of firmly sealing in market is various, but sealed interchangeable sealed butterfly valve firmly seals the butterfly valve at present and when using, directly cup joints the bull stick and rotates at the outer wall of transmission shaft, leads to the bull stick of cup jointing to drop easily when rotating, need improve existing equipment for this reason, satisfy market demand.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed interchangeable seals butterfly valve firmly to solve the sealed interchangeable seals butterfly valve firmly on the existing market that above-mentioned background art provided and when using, directly cup joint the bull stick and rotate at the outer wall of transmission shaft, the bull stick that leads to cup jointing problem that drops easily when rotating.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sealed interchangeable butterfly valve sealed firmly, includes valve body, card pearl, slide bar and valve clack, one side of valve body is provided with the transmission shaft, the card pearl sets up the inside at the transmission shaft, the inside through connection of transmission shaft has the gag lever post, coupling spring has been cup jointed to the outer wall of gag lever post, transmission shaft through connection is in the inside of bull stick.

Preferably, the clamping beads are provided with two groups, the sizes of the outer walls of the two groups of clamping beads are matched with arc-shaped clamping grooves formed in the rotating rod, and the clamping beads are symmetrically distributed about a transverse middle parting line of the transmission shaft.

Preferably, the outer wall of gag lever post is helicitic texture, and the junction contained angle between gag lever post and the transmission shaft is 90 to be threaded connection between transmission shaft and the gag lever post.

Preferably, the slide bar is connected in the rotating rod, a clamping spring is arranged in the slide bar, two ends of the clamping spring are connected with clamping blocks, one end of the slide bar, which is far away from the rotating rod, is connected with a pull ring, the slide bar forms a sliding clamping connection structure with the rotating rod through the clamping spring and the clamping blocks, and the clamping blocks form an elastic telescopic structure with the slide bar through the clamping spring.

Preferably, the valve clack sets up the inside at the valve body, the surface connection of valve body has the fixed block, one side of fixed block is provided with the card incidentally, the inside through connection that the card was taken along has the fixed axle, the outer wall that the card was taken along has cup jointed changes the piece, the inside that changes the piece is provided with the connecting block, the one end of connecting block is connected with the stopper, the card is taken along to constitute between fixed axle and the fixed block and rotates and be connected, and stopper and card are sliding connection between taking along to the card take along and change for threaded connection between the piece.

Preferably, the cross-section of the limiting block is L-shaped, the limiting block is rotatably connected with the rotating block, and the limiting block is riveted with the fixing block.

Compared with the prior art, the beneficial effects of the utility model are that: the seal interchangeable hard seal butterfly valve:

1. the outer wall size of the two sets of card pearls of the device is identical with the inside arc draw-in groove of seting up of bull stick, and the junction contained angle between gag lever post and the transmission shaft is 90, and be threaded connection between transmission shaft and the gag lever post, cup joint the bull stick at the outer wall of transmission shaft, rotate the gag lever post again, make the gag lever post remove to the inside of transmission shaft, extrude two sets of card pearls through the gag lever post, make two sets of card pearls and the inside arc draw-in groove looks block of seting up of bull stick, so that fix the bull stick, play the effect that prevents the bull stick and drop.

2. The sliding rod of the device forms a sliding clamping connection structure through the clamping spring and the clamping block and the rotating rod, the clamping block forms an elastic telescopic structure through the clamping spring and the sliding rod, the clamping block is pressed, the clamping block extrudes the clamping spring and moves to the inside of the rotating rod, the pull ring is pulled, the sliding rod slides in the rotating rod, and the length of the sliding rod can be adjusted to achieve the aim of saving labor.

3. The device's card constitutes to rotate between fixed axle and the fixed block incidentally and is connected, and stopper and card be sliding connection between incidentally to the card is threaded connection incidentally and changes between the piece, rotates the card and rotates incidentally, and twists and move the commentaries on classics piece, makes to change the piece and drives the stopper and slide at the outer wall that the card was taken incidentally, inserts the inside of fixed block through the stopper and carries out the block, so that dock between this equipment and the medium flow pipeline.

Drawings

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

FIG. 2 is a schematic view of the cross-sectional structure of the present invention;

fig. 3 is a schematic side view of the cross-sectional structure of the present invention.

In the figure: 1. a valve body; 2. a drive shaft; 3. clamping the beads; 4. a limiting rod; 5. a connecting spring; 6. a rotating rod; 7. a slide bar; 8. a snap spring; 9. a clamping block; 10. a pull ring; 11. a valve flap; 12. a fixed block; 13. carrying a card; 14. a fixed shaft; 15. rotating the block; 16. connecting blocks; 17. and a limiting block.

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. 1-3, the present invention provides a technical solution: the utility model provides a sealed interchangeable hard seal butterfly valve, includes valve body 1, transmission shaft 2, card pearl 3, gag lever post 4, coupling spring 5, bull stick 6, slide bar 7, block spring 8, fixture block 9, pull ring 10, valve clack 11, fixed block 12, card take 13, fixed axle 14, commentaries on classics piece 15, connecting block 16 and stopper 17 incidentally, one side of valve body 1 is provided with transmission shaft 2, card pearl 3 sets up the inside at transmission shaft 2, card pearl 3 is provided with two sets ofly, and the outer wall size of two sets of card pearls 3 is identical with the inside arc draw-in groove of seting up of bull stick 6 to card pearl 3 is the symmetric distribution about the horizontal well separated time of transmission shaft 2, blocks in the arc draw-in groove of seting up inside the bull stick 6 through card pearl 3 to be convenient for fixing bull stick 6, the inside through connection of transmission shaft 2 has gag lever post 4, the outer wall of gag lever post 4 is threaded structure, and the junction contained angle between gag lever post 4 and transmission shaft 2 is 90, the transmission shaft 2 is in threaded connection with the limiting rod 4, the limiting rod 4 is rotated into the transmission shaft 2 so as to limit the clamping beads 3, the outer wall of the limiting rod 4 is sleeved with a connecting spring 5, and the transmission shaft 2 is connected into the rotating rod 6 in a penetrating manner;

the sliding rod 7 is connected inside the rotating rod 6, a clamping spring 8 is arranged inside the sliding rod 7, clamping blocks 9 are connected to two ends of the clamping spring 8, one end, far away from the rotating rod 6, of the sliding rod 7 is connected with a pull ring 10, the sliding rod 7 forms a sliding clamping connection structure with the rotating rod 6 through the clamping spring 8 and the clamping blocks 9, the clamping blocks 9 form an elastic telescopic structure with the sliding rod 7 through the clamping spring 8, and the sliding rod 7 slides out of the inside of the rotating rod 6 so as to achieve the purpose of saving labor;

the valve clack 11 is arranged inside the valve body 1, the surface of the valve body 1 is connected with a fixed block 12, one side of the fixed block 12 is provided with a clamping block 13, the inside of the clamping block 13 is connected with a fixed shaft 14 in a penetrating way, the outer wall of the clamping block 13 is sleeved with a rotating block 15, the inside of the rotating block 15 is provided with a connecting block 16, one end of the connecting block 16 is connected with a limit block 17, the cross section of the limit block 17 is L-shaped, the limit block 17 is rotatably connected with the rotating block 15 and is riveted with the fixed block 12, the limit block 17 is inserted into the inside of the fixed block 12 through the limit block 17 so as to be convenient for butt joint between the equipment and a medium flowing pipeline, the clamping block 13 is rotatably connected with the fixed shaft 12 through the fixed shaft 14 and is connected with the fixed block 17 in a sliding way, and is connected with the clamping block 13 in a sliding way, and is in a threaded connection with the rotating block 15, the card holder 13 is fixed by rotating the rotary block 15.

The working principle is as follows: when the hard seal butterfly valve with the exchangeable seal is used, firstly, the size of the outer wall of two groups of clamping beads 3 of the device is matched with an arc clamping groove arranged in a rotating rod 6, the included angle of the joint between a limiting rod 4 and a transmission shaft 2 is 90 degrees, the transmission shaft 2 is in threaded connection with the limiting rod 4, the rotating rod 6 is sleeved on the outer wall of the transmission shaft 2, then the limiting rod 4 is rotated to enable the limiting rod 4 to move towards the inside of the transmission shaft 2, the two groups of clamping beads 3 are extruded by the limiting rod 4, the two groups of clamping beads 3 are clamped with the arc clamping groove arranged in the rotating rod 6, so that the rotating rod 6 is fixed, the rotating rod 6 is prevented from falling off, a sliding clamping connection structure is formed between a sliding rod 7 of the device and a clamping block 9 and the rotating rod 6 through a clamping spring 8, an elastic telescopic structure is formed between the clamping block 9 and the sliding rod 7 through the clamping spring 8, and the clamping block 9 is pressed, the clamping block 9 is made to extrude the clamping spring 8 and move to the inside of the rotating rod 6, then the pull ring 10 is pulled, the sliding rod 7 slides in the rotating rod 6, the length of the sliding rod 7 can be adjusted, the clamping block 13 of the device is in rotary connection with the fixed block 12 through the fixed shaft 14, the limiting block 17 is in sliding connection with the clamping block 13, the clamping block 13 is in threaded connection with the rotating block 15, the clamping block 13 is rotated, the rotating block 15 is screwed, the limiting block 17 is driven by the rotating block 15 to slide on the outer wall of the clamping block 13, and the limiting block 17 is inserted into the inside of the fixed block 12 to be clamped, so that the device is in butt joint with a medium flowing pipeline.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a sealed interchangeable butterfly valve sealed firmly, includes valve body (1), card pearl (3), slide bar (7) and valve clack (11), one side of valve body (1) is provided with transmission shaft (2), its characterized in that: the clamping bead (3) is arranged inside the transmission shaft (2), the limiting rod (4) is connected to the inside of the transmission shaft (2) in a penetrating mode, the connecting spring (5) is sleeved on the outer wall of the limiting rod (4), and the transmission shaft (2) is connected to the inside of the rotating rod (6) in a penetrating mode.

2. A seal-interchangeable, hard-seal butterfly valve according to claim 1, wherein: the clamping beads (3) are arranged in two groups, the sizes of the outer walls of the two groups of clamping beads (3) are matched with arc-shaped clamping grooves formed in the rotating rod (6), and the clamping beads (3) are symmetrically distributed about a transverse middle parting line of the transmission shaft (2).

3. A seal-interchangeable, hard-seal butterfly valve according to claim 1, wherein: the outer wall of gag lever post (4) is helicitic texture, and the junction contained angle between gag lever post (4) and transmission shaft (2) is 90 to be threaded connection between transmission shaft (2) and gag lever post (4).

4. A seal-interchangeable, hard-seal butterfly valve according to claim 1, wherein: slide bar (7) are connected in the inside of bull stick (6), the inside of slide bar (7) is provided with block spring (8), the both ends of block spring (8) are connected with fixture block (9), the one end that bull stick (6) were kept away from in slide bar (7) is connected with pull ring (10), constitute slip block connection structure between slide bar (7) through block spring (8) and fixture block (9) and bull stick (6), and constitute elastic telescopic structure between fixture block (9) through block spring (8) and slide bar (7).

5. A seal-interchangeable, hard-seal butterfly valve according to claim 1, wherein: valve clack (11) set up the inside at valve body (1), the surface connection of valve body (1) has fixed block (12), one side of fixed block (12) is provided with card piggyback (13), the inside through connection of card piggyback (13) has fixed axle (14), the outer wall of card piggyback (13) has cup jointed commentaries on classics piece (15), the inside of changeing piece (15) is provided with connecting block (16), the one end of connecting block (16) is connected with stopper (17), card piggyback (13) constitute between fixed axle (14) and fixed block (12) and rotate and be connected, and be sliding connection between stopper (17) and the card piggyback (13) to be threaded connection between card piggyback (13) and commentaries on classics piece (15).

6. A seal-interchangeable, hard-seal butterfly valve according to claim 5, wherein: the cross section of the limiting block (17) is L-shaped, the limiting block (17) is rotatably connected with the rotating block (15), and the limiting block (17) is riveted with the fixing block (12).