CN215172331U

CN215172331U - Soft sealing flange butterfly valve with elastic structure

Info

Publication number: CN215172331U
Application number: CN202121252758.6U
Authority: CN
Inventors: 吴远凯; 吴维祥
Original assignee: Tianjin Tanggutang Valve Co ltd
Current assignee: Tianjin Tanggutang Valve Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-12-14
Anticipated expiration: 2031-06-04

Abstract

The utility model relates to a soft sealing flange butterfly valve field, in particular to a soft sealing flange butterfly valve with an elastic structure, which comprises a flange butterfly valve body, wherein the inner side of the flange butterfly valve body is provided with a main valve rod, the main valve rod penetrates through the flange butterfly valve body, and the main valve rod is rotationally connected with the flange butterfly valve body, the bottom end of the flange butterfly valve body is fixedly connected with a sealing block, the rear end of the left side of the sealing block is provided with a worm, and the worm penetrates through the sealing block, in the utility model, through the arranged worm wheel, a threaded column, a lifting block, a wear-resistant seat and the worm, the arrangement is matched with the meshing of the worm wheel and the worm wheel, the threaded column and the lifting block, and the sliding connection of the wear-resistant seat and a positioning head, after the flange butterfly valve is used for a period, a worker rotates the worm, controls a threaded shaft to start rotating through the worm wheel, lifts the wear-resistant seat, and is attached to the bottom end of the main valve rod to be continuously sealed, the service life of the flange butterfly valve is prolonged.

Description

Soft sealing flange butterfly valve with elastic structure

Technical Field

The utility model relates to a soft sealing flange butterfly valve field specifically is a soft sealing flange butterfly valve with elastic construction.

Background

The butterfly valve is simple in structure, small in size and light in weight, only comprises a few parts, and can be opened and closed quickly only by rotating 90 degrees, the operation is simple, meanwhile, the valve has good fluid control characteristics, the butterfly plate of the butterfly valve is installed in the diameter direction of a pipeline, in a cylindrical channel of a valve body of the butterfly valve, the disc-shaped butterfly plate rotates around an axis, the rotating angle is 0-90 degrees, when the disc-shaped butterfly plate rotates to 90 degrees, the valve is in a full-open state, when the flange butterfly valve is in a complete-open position, the thickness of the butterfly plate is the only resistance when a medium flows through the valve body, therefore, the pressure drop generated by the valve is very small, the butterfly valve has good flow control characteristics, the butterfly valve has two sealing types of elastic sealing and metal sealing, and the elastic sealing valve is characterized in that a sealing ring can be embedded on the valve body or attached to the periphery of the butterfly plate.

The valve rod of soft sealing flange butterfly valve is in the continuous in-process that opens and shuts, the continuous wearing and tearing body of rod of meeting, it is not hard up to use the valve rod to appear after the longer one end time, unable fine location is sealed, the life of soft sealing flange butterfly valve has been reduced, directly use the elastic layer simultaneously and be used for replenishing the sealed valve rod, can reduce the elastic sealing effect of soft sealing flange butterfly valve, whole transmission effect is relatively poor, and in case the replenishment structure damages, can lead to whole valve rod all can't use, the practicality of elastic sealing has been reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a soft sealing flange butterfly valve with elastic construction 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 soft sealing flange butterfly valve with an elastic structure comprises a flange butterfly valve body, wherein a main valve rod is arranged on the inner side of the flange butterfly valve body, the main valve rod penetrates through the flange butterfly valve body and is rotatably connected with the flange butterfly valve body, a sealing block is fixedly connected to the bottom end of the flange butterfly valve body, a worm is arranged at the rear end of the left side of the sealing block, the worm penetrates through the sealing block and is rotatably connected with the sealing block, a worm wheel is meshed with the outer side of the worm and is rotatably connected with the sealing block, a threaded column is fixedly connected to the top end of the worm wheel and is rotatably connected with the sealing block, a lifting block is spirally connected to the outer side of the threaded column, an elastic middle seat is fixedly connected to the top end of the lifting block, a fixed rod is fixedly connected to the top end edge of the elastic middle seat, and a positioning head is slidably connected to the outer side of the fixed rod, the outer side of the positioning head is connected with a wear-resistant seat in a sliding mode, and the wear-resistant seat is connected with the main valve rod and the flange butterfly valve body in a sliding mode.

Preferably, the inboard of sealed piece is two-layer cavity form setting, promote the outside fixedly connected with balancing pole of piece, the inboard of balancing pole is equipped with the stand, and stand and sealed piece fixed connection, the stand runs through the balancing pole, and stand and balancing pole sliding connection.

Preferably, the top end of the inner side of the elastic middle seat is fixedly connected with a flexible layer, and the flexible layer is made of a rubber plate.

Preferably, the outer side of the fixed rod is sleeved with a spring, and the upper end and the lower end of the spring are respectively fixedly connected with the elastic middle seat and the positioning head.

Preferably, the top of the wear-resistant seat is provided with a groove, the edge of the bottom of the wear-resistant seat is provided with a clamping groove, the bottom of the wear-resistant seat is in a convex shape, and the wear-resistant seat is made of a plate made of wear-resistant flexible metal materials.

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

1. in the utility model, through the arrangement of the worm wheel, the threaded column, the lifting block, the wear-resistant seat and the worm, the arrangement is matched with the meshing of the worm wheel and the worm, the threaded connection of the threaded column and the lifting block and the sliding connection of the wear-resistant seat and the positioning head, after the flange butterfly valve is used for a period of time, a worker rotates the worm, controls the threaded shaft to start rotating through the worm wheel, raises the wear-resistant seat, is attached to the bottom end of the main valve rod for continuous sealing, and prolongs the service life of the flange butterfly valve;

2. the utility model discloses in, through the elasticity middle base that sets up, flexible layer, spring and dead lever, this kind sets up the fixed connection of cooperation elasticity intermediate level and flexible layer, the spring cup joints with the fixed connection of spring and location head with the dead lever, the effect that the elasticity intermediate level played the location to the wear-resisting seat of top and supported, in case the circumstances of damage appears in the wear-resisting seat of the top, can directly change the wear-resisting seat of renewal, and the enhancement that this kind of multilayer connection's mode can be further is to elasticity, improved the elasticity sealing practicality.

Drawings

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

FIG. 2 is a schematic view of the mounting structure of the sealing block of the present invention;

FIG. 3 is a perspective view of the positioning head of the present invention;

fig. 4 is a perspective view of the wear-resistant seat of the present invention.

In the figure: 1-flange butterfly valve body, 2-main valve rod, 3-sealing block, 4-worm, 5-worm wheel, 6-threaded column, 7-lifting block, 8-balancing rod, 9-upright column, 10-elastic middle seat, 11-flexible layer, 12-spring, 13-positioning head, 14-fixing rod, 15-wear-resistant seat and 16-groove.

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, the present invention provides a technical solution:

a soft sealing flange butterfly valve with an elastic structure comprises a flange butterfly valve body 1, wherein a main valve rod 2 is arranged on the inner side of the flange butterfly valve body 1, the main valve rod 2 penetrates through the flange butterfly valve body 1, the main valve rod 2 is rotatably connected with the flange butterfly valve body 1, a sealing block 3 is fixedly connected with the bottom end of the flange butterfly valve body 1, a worm 4 is arranged at the rear end of the left side of the sealing block 3, the worm 4 penetrates through the sealing block 3, the worm 4 is rotatably connected with the sealing block 3, a worm wheel 5 is meshed on the outer side of the worm 4, the worm wheel 5 is rotatably connected with the sealing block 3, the rotating direction of the worm wheel 5 is favorably controlled, a threaded column 6 is fixedly connected with the top end of the worm wheel 5, the threaded column 6 is rotatably connected with the sealing block 3, a lifting block 7 is spirally connected with the outer side of the threaded column 6 and is favorable for pushing the lifting block 7 to ascend, an elastic middle seat 10 is fixedly connected with the top end of the lifting block 7, a fixed rod 14 is fixedly connected with the top end of the elastic middle seat 10, the outside sliding connection of dead lever 14 has location head 13, is favorable to location head 13 block wear-resisting seat 15 to fix a position, and the outside sliding connection of location head 13 has wear-resisting seat 15, and wear-resisting seat 15 and main valve stem 2 and flange butterfly valve body 1 sliding connection.

The inner side of the sealing block 3 is arranged in a two-layer cavity shape, the outer side of the lifting block 7 is fixedly connected with a balance rod 8, the inner side of the balance rod 8 is provided with an upright post 9, the upright post 9 is fixedly connected with the sealing block 3, the upright post 9 penetrates through the balance rod 8, and the upright post 9 is in sliding connection with the balance rod 8, so that the two-layer cavity of the sealing block 3 is convenient to arrange for better accommodating different components, the sealing effect is enhanced, and the balance rod 8 on the outer side of the lifting block 7 is positioned on the outer side of the upright post 9 so as to keep the position of the lifting block 7 from deviating; the flexible layer 11 is fixedly connected to the top end of the inner side of the elastic middle seat 10, and the flexible layer 11 is made of a rubber plate material, so that the flexible layer 11 at the top end of the inner side of the elastic middle seat 10 can provide part of deformation and elasticity, and the pressure borne by the wear-resistant seat 15 is relieved; the outer side of the fixed rod 14 is sleeved with a spring 12, and the upper end and the lower end of the spring 12 are respectively fixedly connected with the elastic middle seat 10 and the positioning head 13, so that the spring 12 on the outer side of the fixed rod 14 can push the positioning head 13 at the top end to be clamped into the inner side of the wear-resistant seat 15 for positioning; the top of wear-resisting seat 15 is seted up flutedly 16, and the draw-in groove has been seted up to the bottom border position of wear-resisting seat 15, and the bottom of wear-resisting seat 15 is the convex setting, and wear-resisting seat 15 is made for the panel of wear-resisting flexible metal material, the better location main valve stem 2 of recess 16 on the 15 tops of wear-resisting seat of being convenient for, and wear-resisting flexible metal material can prolong the life of wear-resisting seat 15.

The working process is as follows: after one end of the novel flange butterfly valve body 1 is used, a tool is taken out, a worm 4 leaked outside a sealing block 3 is rotated, the worm 4 is meshed with a worm wheel 5 on the inner side of the sealing block 3 to start rotating, the worm wheel 5 drives a threaded column 6 at the top end to start rotating in the rotating process, the threaded column 6 simultaneously drives a lifting block 7 on the outer side to start rising, the lifting block 7 is matched with a balance rod 8 fixedly connected with the outer side to be positioned on the outer side of a stand column 9 to realize rising, the lifting block 7 pushes an elastic middle seat 10 at the top end to start rising, a fixed rod 14 on the outer side of the top end of the elastic middle seat 10 pushes a positioning head 13 above the outer side to be positioned on the inner side of a wear-resistant seat 15 to synchronously rise, a groove 16 at the top end of the wear-resistant seat 15 starts to be clamped into the bottom end of a main valve rod 2 to be closed and sealed, a bulge at the bottom end of the wear-resistant seat 15 is clamped into a flexible layer 11 of the elastic middle seat 10 below to finish clamping, when using, it is long when every period of time all need rotate round worm 4, promote the height of wear-resisting seat 15, strengthen sealed effect, the spring 12 in the dead lever 14 outside simultaneously is via the continuous extrusion of location head 13, the elasticity from the area of cooperation flexible layer 11, improve overall seal structure's practicality, when discovering to rotate the sealed problem of the unable fine solution of worm 4, dismantle flange butterfly valve body 1, take out new wear-resisting seat 15, the locating head 13 card on seat 10 top is gone into in the middle of aligning the draw-in groove of wear-resisting seat 15 bottom elasticity, recover flange butterfly valve body 1, rotate worm 4, accomplish sealed again, this kind of mode, only need to change wear-resisting seat 15 and just can use flange butterfly valve body 1 repeatedly, and the cost is reduced.

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

1. The utility model provides a soft sealing flange butterfly valve with elastic construction, includes flange butterfly valve body (1), its characterized in that: the flange butterfly valve is characterized in that a main valve rod (2) is arranged on the inner side of the flange butterfly valve body (1), the main valve rod (2) penetrates through the flange butterfly valve body (1), the main valve rod (2) is rotatably connected with the flange butterfly valve body (1), a sealing block (3) is fixedly connected with the bottom end of the flange butterfly valve body (1), a worm (4) is arranged at the rear end of the left side of the sealing block (3), the worm (4) penetrates through the sealing block (3), the worm (4) is rotatably connected with the sealing block (3), a worm wheel (5) is meshed with the outer side of the worm (4), the worm wheel (5) is rotatably connected with the sealing block (3), a threaded column (6) is fixedly connected with the top end of the worm wheel (5), the threaded column (6) is rotatably connected with the sealing block (3), a lifting block (7) is spirally connected with the outer side of the threaded column (6), and an elastic middle seat (10) is fixedly connected with the top end of the lifting block (7), the top edge position fixedly connected with dead lever (14) of elasticity middle seat (10), the outside sliding connection of dead lever (14) has location head (13), the outside sliding connection of location head (13) has wear-resisting seat (15), and wear-resisting seat (15) and main valve stem (2) and flange butterfly valve body (1) sliding connection.

2. The flexible sealing flange butterfly valve with elastic structure as claimed in claim 1, wherein: the inboard of sealed piece (3) is two-layer cavity form setting, promote outside fixedly connected with stabilizer bar (8) of piece (7), the inboard of stabilizer bar (8) is equipped with stand (9), and stand (9) and sealed piece (3) fixed connection, stabilizer bar (8) are run through in stand (9), and stand (9) and stabilizer bar (8) sliding connection.

3. The flexible sealing flange butterfly valve with elastic structure as claimed in claim 1, wherein: the inner side top end of the elastic middle seat (10) is fixedly connected with a flexible layer (11), and the flexible layer (11) is made of rubber-made plates.

4. The flexible sealing flange butterfly valve with elastic structure as claimed in claim 1, wherein: the outer side of the fixed rod (14) is sleeved with a spring (12), and the upper end and the lower end of the spring (12) are respectively fixedly connected with the elastic middle seat (10) and the positioning head (13).

5. The flexible sealing flange butterfly valve with elastic structure as claimed in claim 1, wherein: the top of wear-resisting seat (15) is seted up flutedly (16), the draw-in groove has been seted up to the bottom border position of wear-resisting seat (15), the bottom of wear-resisting seat (15) is the convex setting, wear-resisting seat (15) are made for the panel of wear-resisting flexible metal material.