CN209943541U

CN209943541U - Three eccentric butterfly valves of a mouthful lug formula are swept in area

Info

Publication number: CN209943541U
Application number: CN201920616011.0U
Authority: CN
Inventors: 王平红; 林童; 林峰; 林小克; 舒婷洁; 林海威
Original assignee: ZHEJIANG BEIER CONTROL VALVE CO Ltd
Current assignee: ZHEJIANG BEIER CONTROL VALVE CO Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-01-14
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses a three eccentric butterfly valves of mouthful lug formula are swept in area, include valve body, valve rod, uide bushing and to the ring, be provided with the valve rod on the valve body, and the junction of valve rod upper portion and valve body has set gradually the gasket, filler and gland to gland is connected with the valve body through fixing bolt, and the valve rod lower part is provided with to ring and hou gai with the junction of valve body simultaneously, the upper and lower two of valve body all are provided with air source interface, the upper and lower both sides of valve rod all are provided with the uide bushing, and the middle part of valve rod is provided with the valve plate, and the outside cover of valve plate is equipped with the disk seat to clamp plate and valve plate pass through fixing bolt and be connected, are provided. The lug type three-eccentric butterfly valve with the purging port adopts a purging structure, effectively solves the problem of blocking or jamming in the use process of the valve, enables the valve to smoothly operate, increases the purging port at the guide sleeve (the lower part of the filler) of the valve body, and can be introduced with a proper air source before the valve operates.

Description

Three eccentric butterfly valves of a mouthful lug formula are swept in area

Technical Field

The utility model relates to a butterfly valve technical field specifically is a three eccentric butterfly valves of mouthful lug formula are swept in area.

Background

The supporting lug type three-eccentric butterfly valve is a valve commonly used in mechanical equipment, can block medium flowing in a pipeline and is convenient to control the pipeline flowing.

However, in the use process of the existing supporting lug type three-eccentric butterfly valve, the blocking of the supporting lug type three-eccentric butterfly valve by the medium is easily caused, so that the valve plate of the supporting lug type three-eccentric butterfly valve is blocked or deadly blocked, and the normal opening and closing of the supporting lug type three-eccentric butterfly valve are not facilitated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an area sweeps three eccentric butterfly valves of mouthful lug formula to solve the current three eccentric butterfly valves of lug formula that propose among the above-mentioned background art, at the in-process that uses, easily cause the medium to the jam of three eccentric butterfly valves of lug formula, make the dead phenomenon of card or card appear blocking in the valve plate of three eccentric butterfly valves of lug formula, be unfavorable for the normal problem of opening and closing of three eccentric butterfly valves of lug formula.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a three eccentric butterfly valves of mouthful lug formula are swept in area, includes valve body, valve rod, uide bushing and to opening the ring, be provided with the valve rod on the valve body, and the junction of valve rod upper portion and valve body has set gradually packing pad, filler and gland to gland is connected with the valve body through fixing bolt, and the junction of valve rod lower part and valve body is provided with to opening ring and back lid simultaneously, the upper and lower two of valve body all are provided with air source interface, the upper and lower both sides of valve rod all are provided with the uide bushing, and the middle part of valve rod is provided with the valve plate, and the outside cover of valve plate is equipped with the disk seat to clamp plate and valve plate pass through fixing bolt and be.

Preferably, the number of the air source interfaces is 2 in total, and the 2 air source interfaces are axially symmetrically arranged relative to the center line of the valve body.

Preferably, the mounting structure of the pressure plate is a dismounting structure, and the outer diameter of the pressure plate is the same as that of the valve plate.

Preferably, the diameter of the valve seat is larger than that of the valve plate, and the valve seat is positioned on two sides of the connecting ring.

Preferably, the shape structure of the connecting ring is a circular ring structure, and the diameter of the connecting ring is the same as that of the pressure plate.

Preferably, the connecting ring and the pressure plate are both provided with a limiting convex ring, and the pressure plate is flush with the outer surface of the valve plate.

Compared with the prior art, the beneficial effects of the utility model are that: the lug type three-eccentric butterfly valve with the purging port adopts a purging structure, effectively solves the problem of blockage or jamming in the use process of the valve and leads the valve to run smoothly;

1. the purging port is added at the position of the guide sleeve (the lower part of the filler) of the valve body, a proper gas source can be introduced before the valve operates to remove impurities in the valve so as to keep the medium clean, and after the valve operates, when the valve is blocked or dead in a multi-dust medium pipeline or a high-temperature pipeline, a gas source larger than the medium is introduced through the purging port, so that the smooth operation of the valve can be effectively ensured, the service life of the valve is prolonged, and the working efficiency of the valve is improved;

2. two valve seats are arranged on two sides of the valve plate, and a connecting ring is arranged between the two valve seats, so that the effect of increasing the closing tightness of the valve body is achieved, and the closing effect of the valve body is improved;

3. the connecting ring and the pressure plate are both provided with limiting convex rings which can limit the valve seat and are beneficial to positioning and fixing the valve seat.

Drawings

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

FIG. 2 is a schematic sectional view of the valve plate of the present invention;

FIG. 3 is an enlarged schematic view of point A of FIG. 2 according to the present invention;

fig. 4 is a schematic view of the structure of the connection ring of the present invention.

In the figure: 1. a valve body; 2. a valve stem; 3. a guide sleeve; 4. an air source interface; 5. a filler pad; 6. a filler; 7. a packing gland; 8. fixing the bolt; 9. a valve plate; 10. pressing a plate; 11. opening the ring; 12. a rear cover; 13. a valve seat; 14. a connecting ring; 15. and a limit convex ring.

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 lug type three-eccentric butterfly valve with a purging port comprises a valve body 1, a valve rod 2, a guide sleeve 3, a gas source interface 4, a packing pad 5, a packing 6, a packing gland 7, a fixing bolt 8, a valve plate 9, a pressure plate 10, a split ring 11, a rear cover 12, a valve seat 13, a connecting ring 14 and a limiting convex ring 15, wherein the valve rod 2 is arranged on the valve body 1, the packing pad 5, the packing 6 and the packing gland 7 are sequentially arranged at the joint of the upper part of the valve rod 2 and the valve body 1, the packing gland 7 is connected with the valve body 1 through the fixing bolt 8, the split ring 11 and the rear cover 12 are arranged at the joint of the lower part of the valve rod 2 and the valve body 1, the gas source interface 4 is arranged at the upper part and the lower part of the valve body 1, the guide sleeve 3 is arranged at the upper side and the lower side of the valve rod 2, the valve plate 9 is arranged at the middle, while a connecting ring 14 is provided between the valve seats 13.

The number of the air source interfaces 4 of the embodiment is 2, and the 2 air source interfaces 4 are arranged in axial symmetry relative to the center line of the valve body 1, so that the function of ventilating the inside of the valve body 1 is realized, and the cleaning of the inside of the valve body 1 is facilitated.

The mounting structure of clamp plate 10 is for dismantling the structure, and the external diameter of clamp plate 10 is the same with the external diameter of valve plate 9, sets up like this and plays the effect of dismantling clamp plate 10 from valve plate 9, is favorable to the change to disk seat 13.

The diameter of the valve seat 13 is larger than that of the valve plate 9, and the valve seat 13 is positioned on two sides of the connecting ring 14, so that the sealing effect of the valve body 1 is improved, and the leakage of media is avoided.

The shape structure of the connecting ring 14 is a circular ring structure, and the diameter of the connecting ring 14 is the same as that of the pressure plate 10, so that the arrangement has the function of separating 2 valve seats 13, and the installation of the valve seats 13 is facilitated.

The connecting ring 14 and the pressure plate 10 are both provided with a limiting convex ring 15, and the pressure plate 10 is flush with the outer surface of the valve plate 9, so that the valve seat 13 is positioned and mounted, and the valve seat 13 is prevented from being misplaced.

The working principle is as follows: when the support lug type three-eccentric butterfly valve with the purging port is used, as shown in fig. 1-4, the valve rod 2 can control the rotation of the valve plate 9, so that the valve plate 9 drives the valve seat 13 to rotate, the opening and closing of the inner cavity of the valve body 1 are realized, the 2 valve seats 13 on the outer side of the valve plate 9 can improve the sealing performance of the inner cavity of the valve body 1 and avoid the leakage of media, when the valve plate 9 is clamped or blocked, a valve on a gas pipe connected with the gas source interface 4 can be opened, pressurized gas is blown into the inner cavity of the valve body 1 through the gas source interface 4, the blocked media in the inner cavity of the valve body 1 can be blown out, and the valve plate 9;

when the valve seat 13 needs to be replaced, the fixing bolt 8 on the pressure plate 10 is firstly detached, the connecting ring 14 and the valve seat 13 are taken out from the valve plate 9, a new valve seat 13 is placed on the valve plate 9, the limiting convex rings 15 on the pressure plate 10 and the connecting ring 14 are respectively pressed on the grooves on the 2 valve seats 13, the pressure plate 10 is fixed by the fixing bolt 8, and then the pressure plate 10 presses the connecting ring 14 and the valve seat 13, so that a series of operations of the lug type three-eccentric butterfly valve with the purging opening are completed.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part all adopt prior art, and conventional model and conventional connection mode are not detailed here again.

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 three eccentric butterfly valves of a mouthful lug formula are swept in area, includes valve body (1), valve rod (2), uide bushing (3) and runs from opposite directions ring (11), its characterized in that: the improved valve is characterized in that a valve rod (2) is arranged on the valve body (1), a packing pad (5), packing (6) and a packing gland (7) are sequentially arranged at the joint of the upper portion of the valve rod (2) and the valve body (1), the packing gland (7) is connected with the valve body (1) through a fixing bolt (8), meanwhile, a split ring (11) and a rear cover (12) are arranged at the joint of the lower portion of the valve rod (2) and the valve body (1), air source interfaces (4) are arranged at the upper portion and the lower portion of the valve body (1), guide sleeves (3) are arranged on the upper side and the lower portion of the valve rod (2), a valve plate (9) is arranged in the middle of the valve rod (2), a valve seat (13) is sleeved on the outer side of the valve plate (9), a pressing plate (10) is connected with the valve plate (9) through the.

2. The ported-lug type tri-eccentric butterfly valve with the purging port of claim 1, wherein: the number of the air source interfaces (4) is 2 in total, and the 2 air source interfaces (4) are arranged in axial symmetry relative to the center line of the valve body (1).

3. The ported-lug type tri-eccentric butterfly valve with the purging port of claim 1, wherein: the mounting structure of the pressure plate (10) is a dismounting structure, and the outer diameter of the pressure plate (10) is the same as that of the valve plate (9).

4. The ported-lug type tri-eccentric butterfly valve with the purging port of claim 1, wherein: the diameter of the valve seat (13) is larger than that of the valve plate (9), and the valve seat (13) is positioned on two sides of the connecting ring (14).

5. The ported-lug type tri-eccentric butterfly valve with the purging port of claim 1, wherein: the shape structure of the connecting ring (14) is a circular ring-shaped structure, and the diameter of the connecting ring (14) is the same as that of the pressure plate (10).

6. The ported-lug type tri-eccentric butterfly valve with the purging port of claim 1, wherein: the connecting ring (14) and the pressure plate (10) are both provided with a limiting convex ring (15), and the pressure plate (10) is flush with the outer surface of the valve plate (9).