CN220910495U

CN220910495U - Flange type electric butterfly valve

Info

Publication number: CN220910495U
Application number: CN202322586694.9U
Authority: CN
Inventors: 张伟; 程宏达
Original assignee: Shaanxi Zhengda Automitazation Engineering Co ltd
Current assignee: Shaanxi Zhengda Automitazation Engineering Co ltd
Priority date: 2023-09-22
Filing date: 2023-09-22
Publication date: 2024-05-07
Anticipated expiration: 2033-09-22

Abstract

The utility model discloses a flange type electric butterfly valve, which comprises a butterfly valve body, wherein the butterfly valve body comprises a valve body and two first flanges, the two first flanges are respectively welded at two ends of the valve body, one of the first flanges is provided with a second flange through a plurality of first bolts, the peripheries of the second flanges and the first flanges which are arranged together are provided with a protection device together, and a protection cover I and a protection cover II are covered at the joint of the flanges through the installation of the protection device, so that corrosion of a rubber pad by a severe environment can be reduced, the service life of the rubber pad is prolonged, further, the connected bolts can be protected to a certain extent, and the corrosion of the flange type electric butterfly valve is slowed down to cause difficult disassembly when the butterfly valve is replaced, so that the butterfly valve is obtained by two purposes; through inserting the locating hole of flange one end in the constant head tank of flange two one ends, and install the rubber pad between the two and can improve the connection stability between two flanges, make the mounting hole align, the installation of the bolt of being convenient for.

Description

Flange type electric butterfly valve

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a flange type electric butterfly valve.

Background

The butterfly valve is also called as flap valve, and is a simple-structure regulating valve, and can be used for opening and closing low-pressure pipeline medium. The valve 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. The pipe is mainly used for cutting and throttling. The butterfly valve opening and closing member is a disc-shaped disc plate which rotates around the axis of the butterfly valve body in the valve body, so that the purpose of opening and closing or adjusting is achieved.

The prior patent document with the publication number of CN218440691U discloses a flange type electric butterfly valve, which comprises a butterfly valve main body and a protection mechanism at the top of the butterfly valve main body, wherein the protection mechanism comprises a rotating component and a moving component; the rotary assembly comprises a mounting plate, a threaded rod, a sliding block, a rack, a gear, a rotary column and a rotary rod, wherein the top of the butterfly valve main body is fixedly connected with the mounting plate, the back of the mounting plate is rotatably connected with the threaded rod, the surface of the threaded rod is meshed with the sliding block, the top of the sliding block is fixedly connected with the rack, the top of the rack is meshed with the gear, the surface of the gear is fixedly connected with the rotary column, and the surface of the rotary column is fixedly connected with the rotary rod; the movable assembly comprises a sliding column, a sliding plate and a protection plate, wherein the sliding column is fixedly connected with the surface of the rotary rod, the sliding plate is attached to the surface of the sliding column, and the protection plate is fixedly connected with the surface of the sliding plate.

Although the flange-type electric butterfly valve can solve the corresponding technical problems, the flange-type electric butterfly valve has the following problems in use, namely, a rubber gasket is usually arranged at a flange joint, and the rubber gasket is easy to corrode and oxidize when used in an external severe environment for a long time, so that water leakage is caused at the flange joint.

For this purpose, we propose a flange-type electric butterfly valve.

Disclosure of utility model

The utility model aims to provide a flange type electric butterfly valve which is used for solving the problems set forth in the background art.

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

A flanged, electrically operated butterfly valve, comprising:

butterfly valve body, the butterfly valve body includes valve body and two flange one, wherein:

the surface integrated into one piece of the said valve body has fixed seats, and the inside of the said valve body rotates and installs the dished plate, rotate and install the valve stem on the said valve body, one end of the said valve stem is fixedly connected with said dished plate, the top of the said fixed seat is fixedly installed with servomotor, the rotating shaft of the said servomotor is fixedly connected with another end of the said valve stem;

The two first flanges are welded at two ends of the valve body respectively, one of the first flanges is provided with a second flange through a plurality of first bolts, a connecting pipe is welded on one side surface of the second flange, which faces away from the first flange, and a protection device is mounted on the periphery of the second flange and the periphery of the first flange together.

As the preferable technical scheme, a sealing bearing is arranged at the joint of the valve rod and the valve body, the outer ring of the sealing bearing is fixedly connected with the valve body, and the inner ring of the sealing bearing is fixedly connected with the valve rod.

As an optimized technical scheme, a positioning block is integrally formed on one side surface of the first flange, which faces away from the valve body, a positioning groove is formed in the second flange, and the positioning block is inserted into the positioning groove.

As the preferable technical scheme, one side surface of the first flange, which is opposite to the valve body, is integrally provided with an annular boss, a first rubber pad is arranged between the first flange and the second flange, the annular boss and the first rubber pad are coaxially arranged, and the annular boss and the first rubber pad are mutually abutted.

As the preferable technical scheme, protector includes safety cover one, safety cover two and bolt two, the one end of safety cover one and the one end of safety cover two pass through the hinge and articulate, safety cover one with the safety cover two surround flange two with the periphery of flange one, screw hole two has been seted up to the other end of safety cover two, the through-hole has been seted up to the other end of safety cover one, the screw rod of bolt two passes through the through-hole and spiro union is in screw hole two.

As an optimal technical scheme, the inner side surfaces of the first protection cover and the second protection cover are glued with a second rubber pad.

The utility model has at least the following beneficial effects:

the utility model has the advantages that the protection device is arranged to cover the first protection cover and the second protection cover at the joint of the flanges, so that the corrosion of the severe environment to the rubber pad can be reduced, the service life of the rubber pad is prolonged, water leakage is avoided, and furthermore, the connected bolts can be protected to a certain extent, and the problem that the butterfly valve is difficult to detach when being replaced due to rust is solved.

Through inserting the locating hole of flange one end in the constant head tank of flange two one ends, and install the rubber pad between the two and can improve the connection stability between two flanges, make the mounting hole align, the installation of the bolt of being convenient for.

Drawings

FIG. 1 is a schematic perspective view of a flange-type electric butterfly valve according to the present utility model;

FIG. 2 is an exploded view of a flange-type electric butterfly valve of the present utility model;

FIG. 3 is a schematic sectional view of a flange-type electric butterfly valve according to the present utility model.

In the figure: 1. a valve body; 2. a servo motor; 201. a valve stem; 202. a dish plate; 3. a fixing seat; 4. a first flange; 402. a first bolt; 403. a boss; 5. a positioning block; 6. a first rubber pad; 7. a connecting pipe; 701. a second flange; 702. a positioning groove; 8. a protective device; 801. a first protection cover; 802. a second protective cover; 803. a hinge; 804. a second bolt; 805. a threaded hole II; 806. a through hole; 807. a second rubber pad; 901. and (3) a bearing.

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.

Referring to fig. 1-3, the present embodiment provides a flange-type electric butterfly valve, including: butterfly valve body, butterfly valve body includes valve body 1 and two flange one 4.

The surface of the valve body 1 is integrally formed with a fixed seat 3, a disc plate 202 is rotatably arranged in the valve body 1, a valve rod 201 is rotatably arranged on the valve body 1, one end of the valve rod 201 is fixedly connected with the disc plate 202, a servo motor 2 is fixedly arranged at the top of the fixed seat 3, and a rotating shaft of the servo motor 2 is fixedly connected with the other end of the valve rod 201;

Wherein, two first flanges 4 are welded at the two ends of the valve body 1 respectively, a second flange 701 is arranged on one first flange 4 through a plurality of first bolts 402, a connecting pipe 7 is welded on one side surface of the second flange 701 back to the first flange 4, and a protection device 8 is arranged on the periphery of the second flange 701 and the first flange 4 together.

The connection part of the valve rod 201 and the valve body 1 is provided with a sealing bearing 901, an outer ring of the sealing bearing 901 is fixedly connected with the valve body 1, and an inner ring of the sealing bearing 901 is fixedly connected with the valve rod 201. By installing the sealing bearing 901, water leakage at the joint can be prevented and the rotation of the valve rod 201 is facilitated to drive the opening and closing of the disc plate 202.

The first flange 4 is integrally formed with a positioning block 5 on a side surface facing away from the valve body 1, the second flange 701 is provided with a positioning groove 702, and the positioning block 5 is inserted into the positioning groove 702. The positioning block 5 at one end of the first flange 4 is inserted into the positioning groove 702 at one end of the second flange 701, so that the connection stability between the two flanges can be improved, the mounting holes are aligned, and the first bolt 402 can be conveniently mounted.

An annular boss 403 is integrally formed on a side surface of the flange one 4, which is opposite to the valve body 1, a rubber pad one 6 is arranged between the flange one 4 and the flange two 701, the annular boss 403 and the rubber pad one 6 are coaxially arranged, and the annular boss 403 and the rubber pad one 6 are mutually abutted. An annular boss 403 is integrally formed on one side surface of the first flange 4, and a first rubber pad 6 is arranged on the outer side surface of the annular boss 403, so that the sealing performance between the two flanges can be improved during connection.

The protection device 8 includes a first protection cover 801, a second protection cover 802, and a second bolt 804, wherein one end of the first protection cover 801 and one end of the second protection cover 802 are hinged through a hinge 803, the first protection cover 801 and the second protection cover 802 surround the peripheries of the flange 701 and the flange 4, a second threaded hole 805 is formed in the other end of the second protection cover 802, a through hole 806 is formed in the other end of the first protection cover 801, and a screw of the second bolt 804 passes through the through hole 806 and is screwed into the second threaded hole 805. Through installing protector 8, cover safety cover one 801 and safety cover two 802 in the junction of flange, can reduce the erosion of adverse circumstances to rubber pad one 6, the length of time of service of extension rubber pad one 6, further, also can play certain protection to a plurality of bolts one 402 of connection, slow down its rust and lead to being difficult to dismantle when changing the butterfly valve, two-shot.

Wherein, the inner side surfaces of the first protection cover 801 and the second protection cover 802 are glued with a second rubber pad 807. Further protect flange junction, isolated rainwater infiltration.

The working principle of the utility model is as follows: firstly, a first rubber pad 6 is placed at one end of a first flange 4, a positioning block 5 at one end of the first flange 4 is inserted into a positioning groove 702 formed in a second flange 701 at one end of a connecting pipe 7, so that mounting holes of the positioning block are aligned, a first bolt 402 is screwed into a threaded hole in the surface of the second flange 701, a first protecting cover 801 and a second protecting cover 802 of a protecting device 8 are opened and sleeved at the joint of the first flange 4 and the second flange 701, and the positioning block is screwed and fixed by a second bolt 804, so that the flange type electric butterfly valve can be mounted.

None of the utility models are related to the same or are capable of being practiced in the prior art. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A flanged electric butterfly valve, comprising:

butterfly valve body, the butterfly valve body includes valve body (1) and two flange one (4), wherein:

The valve is characterized in that a fixed seat (3) is integrally formed on the surface of the valve body (1), a disc plate (202) is rotatably arranged in the valve body (1), a valve rod (201) is rotatably arranged on the valve body (1), one end of the valve rod (201) is fixedly connected with the disc plate (202), a servo motor (2) is fixedly arranged at the top of the fixed seat (3), and a rotating shaft of the servo motor (2) is fixedly connected with the other end of the valve rod (201);

Two first flanges (4) are welded at two ends of the valve body (1) respectively, one first flange (4) is provided with a second flange (701) through a plurality of first bolts (402), one side surface of the second flange (701) opposite to the first flange (4) is welded with a connecting pipe (7), and the second flange (701) and the periphery of the first flange (4) which are installed together are jointly provided with a protection device (8).

2. The flange-type electric butterfly valve according to claim 1, wherein: the sealing device is characterized in that a sealing bearing (901) is arranged at the joint of the valve rod (201) and the valve body (1), the outer ring of the sealing bearing (901) is fixedly connected with the valve body (1), and the inner ring of the sealing bearing (901) is fixedly connected with the valve rod (201).

3. A flanged electric butterfly valve according to claim 2, wherein: a positioning block (5) is integrally formed on one side surface of the first flange (4) back to the valve body (1), a positioning groove (702) is formed in the second flange (701), and the positioning block (5) is inserted into the positioning groove (702).

4. A flanged electric butterfly valve according to claim 3, wherein: an annular boss (403) is integrally formed on one side surface of the first flange (4) back to the valve body (1), a first rubber pad (6) is arranged between the first flange (4) and the second flange (701), the annular boss (403) and the first rubber pad (6) are coaxially arranged, and the annular boss (403) and the first rubber pad (6) are mutually abutted.

5. The flange-type electric butterfly valve according to claim 1, wherein: the protection device (8) comprises a first protection cover (801), a second protection cover (802) and a second bolt (804), one end of the first protection cover (801) and one end of the second protection cover (802) are hinged through a hinge (803), the first protection cover (801) and the second protection cover (802) are enclosed around the periphery of the second flange (701) and the first flange (4), a second threaded hole (805) is formed in the other end of the second protection cover (802), a through hole (806) is formed in the other end of the first protection cover (801), and a screw of the second bolt (804) penetrates through the through hole (806) and is screwed into the second threaded hole (805).

6. A flanged electric butterfly valve according to claims 1-5, wherein: and the inner side surfaces of the first protection cover (801) and the second protection cover (802) are adhered with a second rubber pad (807).