CN219954376U - Flange butterfly valve - Google Patents

Abstract

The utility model discloses a flange butterfly valve, which comprises a valve seat, a valve rod and a valve plate, wherein the valve seat is provided with a mounting seat, a transmission device is arranged in the mounting seat, one end of the valve rod is fixedly connected with the valve plate, the other end of the valve rod passes through the valve seat and the mounting seat to be in transmission connection with the transmission device, movable flanges are arranged at two ends of the valve seat, a check ring embedded in the valve seat is arranged on the movable flanges, a plurality of limit bolts are arranged on the check ring, a through groove for the limit bolts to move is arranged on the valve seat, one end of each limit bolt passes through the through groove to be in threaded connection with the check ring, and an adjusting piece for driving the limit bolts to move is arranged on the valve seat.

Description

Flange butterfly valve

Technical Field

The utility model discloses a flange butterfly valve, and belongs to the technical field of valves.

Background

The valve is also called a flap valve, is a regulating valve with simple structure, can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, mainly plays roles of cutting off and throttling on a pipeline, and a butterfly valve opening and closing member is a disc-shaped butterfly plate which rotates around the axis of the butterfly valve in a valve body so as to achieve the purpose of opening and closing or regulating.

When installing the butterfly valve between two pipelines, because flange on the pipeline has the error when actual installation, lead to the unable fine adaptation error of length of butterfly valve to install to when the mounting hole on the flange exists the dislocation, make unable realization locking between butterfly valve and the pipeline, consequently need redesign butterfly valve's mounting structure to this kind of problem.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a flange type butterfly valve.

The flange butterfly valve comprises a valve seat, a valve rod and a valve plate, wherein the valve seat is provided with a mounting seat, a transmission device is arranged in the mounting seat, one end of the valve rod is fixedly connected with the valve plate, the other end of the valve rod penetrates through the valve seat and the mounting seat to be in transmission connection with the transmission device, movable flanges are arranged at two ends of the valve seat, check rings embedded into the valve seat are arranged on the movable flanges, a plurality of limit bolts are arranged on the check rings, a through groove for the limit bolts to move is formed in the valve seat, one end of each limit bolt penetrates through the through groove to be in threaded connection with the corresponding check ring, and an adjusting piece for driving the limit bolts to move is arranged on the valve seat.

Preferably, the adjusting piece comprises a nut sleeve with a hexagonal structure, a boss is arranged on the valve seat, a threaded section is arranged at one end, close to the movable flange, of the boss, and the adjusting piece is arranged on the threaded section.

Preferably, the size of the through groove is larger than the diameter of the limit bolt, the limit bolt can move along the length direction of the valve seat or rotate a certain angle along the circumferential direction of the valve seat, a pressing block is arranged between the limit bolt and the valve seat, and the pressing block can completely cover the through groove.

Preferably, a sealing ring is arranged on the outer side of one end, far away from the movable flange, of the retainer ring, and a sealing table is arranged on the movable flange.

Preferably, the valve plate comprises a mounting plate and a sealing plate, the mounting plate is fixedly connected with the valve rod through bolts, a positioning table matched with the sealing plate is arranged on the mounting plate, and the diameter of the sealing plate is larger than that of the mounting plate.

Preferably, the transmission device comprises a worm wheel and a worm, the worm wheel and the worm are rotatably arranged in the mounting seat and are in meshed transmission, one end of the valve rod is fixedly connected with the worm wheel, and an operating wheel is arranged at the outer side of the mounting seat, extending from one end of the worm to the outer side of the mounting seat.

Compared with the prior art, the utility model has the beneficial effects that:

through set up the movable flange dish at the both ends of disk seat, rely on changing the position of regulating part on the disk seat for the whole length of butterfly valve can be adjusted according to actual distance between two pipelines, and the movable flange dish can rotate certain angle in the circumferencial direction, so greatly reduced the installation degree of difficulty of bringing because of construction error, butterfly valve application scope is wider.

Drawings

FIG. 1 is a schematic diagram of a flange butterfly valve of the present utility model;

FIG. 2 is a schematic view of a valve seat according to the present utility model;

FIG. 3 is a schematic view of a movable flange plate according to the present utility model;

FIG. 4 is a schematic view of the valve plate and valve stem of the present utility model;

reference numerals: 1. a mounting base; 2. a worm wheel; 3. a worm; 4. an operation wheel; 5. a valve seat; 6. a limit bolt; 7. an adjusting member; 8. a movable flange; 9. a sealing table; 10. a through groove; 11. a threaded section; 12. a boss; 13. a retainer ring; 14. a seal ring; 15. briquetting; 16. a valve stem; 17. a valve plate; 18. a sealing plate; 19. a mounting plate; 20. and a positioning table.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-4, a flange butterfly valve comprises a valve seat 5, a valve rod 16 and a valve plate 17, wherein an installation seat 1 is arranged on the valve seat 5, a transmission device is arranged in the installation seat 1, one end of the valve rod 16 is fixedly connected with the valve plate 17, the other end of the valve rod passes through the valve seat 5 and the installation seat 1 to be in transmission connection with the transmission device, movable flanges 8 are arranged at two ends of the valve seat 5, check rings 13 embedded in the valve seat 5 are arranged on the movable flanges 8, a plurality of limit bolts 6 are arranged on the check rings 13, through grooves 10 for the limit bolts 6 to move are arranged on the valve seat 5, one ends of the limit bolts 6 pass through the through grooves 10 to be in threaded connection with the check rings 13, and an adjusting piece 7 for driving the limit bolts 6 to move is arranged on the valve seat 5.

The regulating piece 7 includes the nut cover of hexagon structure, be provided with boss 12 on the disk seat 5, the boss 12 is close to the one end of movable flange 8 and is provided with screw thread section 11, regulating piece 7 installs on screw thread section 11, through rotating regulating piece 7, make it be close to or keep away from mount pad 1, thereby make the minimum length of butterfly valve change, in order to adapt to the installation of different pipeline intervals, the size of logical groove 10 is greater than the diameter of spacing bolt 6, spacing bolt 6 can remove along the length direction of disk seat 5 or rotate certain angle along the circumferencial direction of disk seat 5, be provided with briquetting 15 between spacing bolt 6 and the disk seat 5, briquetting 15 can cover logical groove 10 completely, through rotating regulating piece 7, make it move one end distance towards keeping away from mount pad 1 direction when, the lateral wall of regulating piece 7 supports briquetting 15 and promotes its orientation movable flange 8 to remove this time, because all spacing bolt 6 are all installed on 13, consequently, 13 and movable flange 8 slide one section distance under the drive of spacing bolt 6, make whole length grow along the length of disk seat 5 or along the circumferencial direction of disk seat 5, the diameter of the flange 8 is guaranteed to the diameter is good, even if can be compared with the flange 8 when installing the diameter is big, thus, the diameter of the flange 8 is installed to the flange is guaranteed to the flange 8 to the size that can be installed to the flange is good.

The retaining ring 13 is kept away from the one end outside of movable flange 8 and is provided with sealing washer 14, be provided with sealing bench 9 on the movable flange 8, sealing washer 14 can guarantee the leakproofness between retaining ring 13 and the disk seat 5, make fluid can not flow from leading to in the groove 10, and when the ring flange on sealing bench 9 and the pipeline cooperates, thereby reduce the degree of difficulty of whole plane processing, flatness and leakproofness can obtain effectual assurance, valve plate 17 includes mounting panel 19 and closing plate 18, mounting panel 19 and valve rod 16 pass through bolt fixed connection, and be provided with on the mounting panel 19 with closing plate 18 complex location platform 20, the diameter of closing plate 18 is greater than the diameter of mounting panel 19, sealing plate 18 and the valve plate 17 that the mounting panel 19 constitutes, both adopt split type designs, not only can guarantee the leakproofness between closing plate 18 and the disk seat 5, simultaneously after sealing plate 18 wears down, can change at any time, the dismouting is simple, low maintenance cost, transmission includes 2 and worm 3, 2 and worm 3 rotate and set up in mount pad 1, and both meshing transmission, one end and worm wheel 2 fixed connection of valve rod 16, one end and worm wheel 2, 3 and worm wheel 2 fixed connection, the one end of worm wheel 3 extends to the outside of the worm wheel 1 and is provided with driving wheel 4 and is operated to the valve plate 4, thereby the operation is opened through the setting up and is operated to the driving wheel and is opened to the valve plate 3, and is operated by the driving wheel and is opened by the driving wheel and is operated by the valve to the valve plate to be opened.

Working principle: when the butterfly valve needs to be installed between two pipelines, the two adjusting parts 7 are firstly arranged towards the direction knob of the installation seat 1, so that the two movable flanges 8 can be mutually close to each other, the length of the whole butterfly valve is shortened, then the valve seat 5 is placed between the two pipelines, the relative positions of the movable flanges 8 and the upper flange of the pipelines are adjusted, after the movable flanges 8 and the upper flange of the pipelines are pre-fastened by utilizing bolts, the adjusting parts 7 are rotated, the adjusting parts 7 drive the pressing blocks 15 to move towards one side of the movable flanges 8, the check rings 13 and the movable flanges 8 can be driven by the limit bolts 6 to abut against the upper flange of the pipelines, and finally the bolts between the two movable flanges are locked, so that the whole installation process is completed.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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 disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a flange formula butterfly valve, includes disk seat (5), valve rod (16) and valve plate (17), a serial communication port, be provided with mount pad (1) on disk seat (5), be provided with transmission in mount pad (1), the one end and the valve plate (17) fixed connection of valve rod (16), the other end passes disk seat (5) and mount pad (1) and transmission are connected, the both ends of disk seat (5) all are provided with movable flange (8), be provided with retaining ring (13) in embedding disk seat (5) on movable flange (8), be provided with a plurality of stop bolt (6) on retaining ring (13), be provided with logical groove (10) that supply stop bolt (6) activity on disk seat (5), logical groove (10) and retaining ring (13) threaded connection are passed to the one end of stop bolt (6), be provided with regulating part (7) that drive stop bolt (6) removed on disk seat (5).

2. Flange butterfly valve according to claim 1, characterized in that the adjusting member (7) comprises a hexagonal nut sleeve, a boss (12) is arranged on the valve seat (5), a threaded section (11) is arranged at one end of the boss (12) close to the movable flange (8), and the adjusting member (7) is mounted on the threaded section (11).

3. Flange butterfly valve according to claim 1, characterized in that the size of the through groove (10) is larger than the diameter of the limit bolt (6), the limit bolt (6) can move along the length direction of the valve seat (5) or rotate a certain angle along the circumferential direction of the valve seat (5), a pressing block (15) is arranged between the limit bolt (6) and the valve seat (5), and the pressing block (15) can completely cover the through groove (10).

4. Flange butterfly valve according to claim 1, characterized in that the outer side of the end of the retainer ring (13) remote from the movable flange (8) is provided with a sealing ring (14), and the movable flange (8) is provided with a sealing table (9).

5. Flange butterfly valve according to claim 1, characterized in that the valve plate (17) comprises a mounting plate (19) and a sealing plate (18), the mounting plate (19) is fixedly connected with the valve rod (16) by bolts, and a positioning table (20) matched with the sealing plate (18) is arranged on the mounting plate (19), and the diameter of the sealing plate (18) is larger than that of the mounting plate (19).

6. The flange butterfly valve according to claim 1, wherein the transmission device comprises a worm wheel (2) and a worm (3), the worm wheel (2) and the worm (3) are rotatably arranged in the mounting seat (1) and are in meshed transmission, one end of the valve rod (16) is fixedly connected with the worm wheel (2), and an operating wheel (4) is arranged at the outer side of the mounting seat (1) from one end of the worm (3).