Leakage-proof electric butterfly valve

Abstract

The utility model relates to the related technical field of valves, in particular to an anti-leakage type electric butterfly valve which comprises a motor, a flange plate is installed on the outer wall of the motor, a butterfly valve body is arranged outside the motor, a pipeline is installed on the inner wall of the butterfly valve body, and a sealing mechanism is arranged on the inner wall of the pipeline. And a filtering assembly is arranged on the inner wall of the pipeline. According to the leakproof electric butterfly valve, through the arrangement of the first fixing plate, the limiting plate, the bolt, the first sealing plate, the second fixing plate, the first sealing ring and the second sealing plate, when the leakproof electric butterfly valve is used, the stability and the sealing effect of a sealing mechanism can be ensured, and the leakage problem caused by abrasion of a sealing surface is reduced; the uniform pressure between the first sealing plate and the limiting plate is guaranteed through equidistant installation of the bolts, so that the sealing performance is improved, the first sealing plate is fixed in the limiting plate through the bolts, the correct position and the sealing effect of the sealing plate are guaranteed, the sealing effect is further enhanced, and medium leakage is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to butterfly valve related technical field especially, it relates to a kind of leakage-proof electric butterfly valve. BACKGROUND

[0002] The butterfly valve is also called flap valve, it is a kind of simple structure regulating valve, can be used in low pressure pipeline medium switch control butterfly valve is to refer to the closing piece (valve lobe or butterfly plate) for disc, rotate around the valve shaft to reach the opening and closing of a kind of valve.The valve can be used to control air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive medium and so on various types fluid flow.In pipeline, mainly play cut-off and throttling role.The butterfly valve actuator is a disc-shaped butterfly plate, rotates in the valve body around its own axis, to achieve the purpose of opening and closing or adjustment, therefore, particularly need a kind of leakage-proof electric butterfly valve.

[0003] Now on the market electric butterfly valve has the following problems when using:

[0004] The traditional electric butterfly valve, in practical application, because the sealing surface of butterfly valve and medium contact area is larger, thus the requirement to sealing performance is high.The sealing surface of traditional electric butterfly valve is easy to wear after long time use, leading to sealing performance decline, thereby appearing leakage problem.In addition, because the opening and closing of butterfly valve is realized by rotating butterfly plate, thus when medium pressure is larger, the rotation of butterfly plate can lead to damage of sealing surface, further aggravate leakage. UTILITY MODEL CONTENTS

[0005] The utility model aims at at least one of the above-mentioned technical problems in the technical field.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of leakage-proof electric butterfly valve, including motor, the outer wall of the motor is equipped with flange plate, the outside of the motor is provided with butterfly valve body, the inner wall of the butterfly valve body is equipped with pipeline, the inner wall of the pipeline is provided with sealing mechanism, the inner wall of the pipeline is provided with filter assembly;

[0007] The sealing mechanism includes first fixed plate, limit board, bolt, first sealing plate, second fixed plate, first sealing ring and second sealing plate, the inner wall of the pipeline is provided with first fixed plate, the inner wall of the first fixed plate is equipped with limit board, the outer wall of the limit board is equipped with bolt, the inner wall of the limit board is provided with first sealing plate, the inner wall of the first sealing plate is equipped with second fixed plate, the outer wall of the second fixed plate is sleeved with first sealing ring, the inside of the second fixed plate is provided with second sealing plate.

[0008] Preferably, the filter assembly comprises a filter shell, a filter screen, a mounting groove and a second sealing ring, a filter plate, the inner wall of the pipeline is provided with the filter shell, the inner wall of the filter shell is provided with the filter screen, the inner wall of the filter shell is provided with the mounting groove, the inner wall of the mounting groove is provided with the second sealing ring, and the inner wall of the filter shell is provided with the filter plate.

[0009] Preferably, a plurality of bolts are arranged on the outer walls of the first sealing plate and the limiting plate.

[0010] Preferably, the first sealing plate is fixed in the limiting plate by bolts, and a plurality of first sealing rings are arranged on the outer walls of the first sealing plate and the second sealing plate.

[0011] Preferably, a plurality of filter screens are arranged on the inner wall of the filter shell.

[0012] Preferably, the mounting grooves are arranged on the inner wall of the filter shell at equal intervals, and the mounting grooves correspond to the filter screens one by one.

[0013] Preferably, the second sealing rings are arranged on the outer walls of the corresponding filter plates, and a plurality of filter plates are arranged in the filter shell at equal intervals.

[0014] Compared with the prior art, the filter assembly has the following beneficial effects:

[0015] The leakage-proof electric butterfly valve comprises a first fixed plate, a limiting plate, a bolt, a first sealing plate, a second fixed plate, a first sealing ring and a second sealing plate, and has the advantages that: in use, the stability and sealing effect of the sealing mechanism can be ensured, and the leakage problem caused by the wear of the sealing surface can be reduced; the uniform pressure between the first sealing plate and the limiting plate is ensured by the equidistant arrangement of the bolts, so that the sealing performance is improved; the correct position and sealing effect of the sealing plate are ensured by fixing the first sealing plate in the limiting plate by the bolts; and the sealing effect is further improved by arranging the first sealing ring and the second sealing ring, so that the leakage of the medium is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall appearance structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the sealing structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the filter assembly structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the filter assembly structure of the utility model; Figure 2 It is a schematic diagram of the enlarged structure of the A part of the utility model;

[0020] Figure 5 The utility model discloses Figure 3 Amplification structural schematic diagram of middle B place.

[0021] In the drawing: 1, motor;2, flange plate;3, pipeline;4, butterfly valve body;5, sealing mechanism;51, first fixed plate;52, limiting plate;53, bolt;54, first sealing plate;55, second fixed plate;56, first sealing ring;57, second sealing plate;6, filter assembly;61, filter shell;62, filter screen;63, mounting groove;64, second sealing ring;65, filter plate. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a kind of leakage-proof electric butterfly valve, including motor 1, flange plate 2 is installed on the outer wall of motor 1, butterfly valve body 4 is provided outside motor 1, pipeline 3 is installed on the inner wall of butterfly valve body 4, sealing mechanism 5 is provided on the inner wall of pipeline 3, filter assembly 6 is provided on the inner wall of pipeline 3;

[0024] Sealing mechanism 5 includes first fixed plate 51, limiting plate 52, bolt 53, first sealing plate 54, second fixed plate 55, first sealing ring 56 and second sealing plate 57, the inner wall of pipeline 3 is provided with first fixed plate 51, limiting plate 52 is installed on the inner wall of first fixed plate 51, bolt 53 is installed on the outer wall of limiting plate 52, first sealing plate 54 is provided on the inner wall of limiting plate 52, second fixed plate 55 is installed on the inner wall of first sealing plate 54, first sealing ring 56 is sleeved on the outer wall of second fixed plate 55, second sealing plate 57 is provided in the inside of second fixed plate 55, by the setting of first fixed plate 51, limiting plate 52, bolt 53, first sealing plate 54, second fixed plate 55, first sealing ring 56 and second sealing plate 57, in use, the stability and sealing effect of sealing mechanism 5 can be ensured, and the leakage problem caused by sealing surface wear is reduced. The uniform pressure between first sealing plate 54 and limiting plate 52 is guaranteed by equidistant installation of bolt 53, so that the sealing performance is improved. First sealing plate 54 is fixed in the inside of limiting plate 52 by bolt 53, so that the correct position and sealing effect of sealing plate are ensured. The sealing effect is further enhanced by the setting of first sealing ring 56 and second sealing ring 57, and the leakage of medium is prevented.

[0025] Further, the filter assembly 6 comprises a filter shell 61, a filter screen 62, a mounting groove 63, a second sealing ring 64, and a filter plate 65. The inner wall of the pipeline 3 is provided with the filter shell 61. The inner wall of the filter shell 61 is provided with the filter screen 62. The inner wall of the filter shell 61 is provided with the mounting groove 63. The inner wall of the mounting groove 63 is provided with the second sealing ring 64. The inner wall of the filter shell 61 is provided with the filter plate 65. Through the arrangement of the filter shell 61, the filter screen 62, the mounting groove 63, the second sealing ring 64, and the filter plate 65, the filter assembly 6 can effectively filter out impurities in the medium, ensuring the cleanliness of the medium. At the same time, the cooperation of the second sealing ring 64 and the filter plate 65 ensures the sealing performance of the filter assembly 6 during the filtering process, preventing the leakage of the medium. The equidistant installation of the filter screen 62 ensures uniform filtering area and improves the filtering efficiency. The one-to-one correspondence between the mounting groove 63 and the filter screen 62 ensures the stable installation of the filter screen 62 and avoids displacement of the filter screen due to vibration or pressure. The equidistant installation of the filter plate 65 ensures uniform flow of the medium inside the filter shell 61, further improving the filtering effect.

[0026] Further, the bolt 53 is provided in multiple numbers and is equidistantly installed on the outer wall of the limiting plate 52 and the first sealing plate 54. Through the arrangement of the bolt 53, the connection between the limiting plate 52 and the first sealing plate 54 is more firm, thereby enhancing the overall stability of the sealing mechanism.

[0027] Further, the first sealing plate 54 is fixed inside the limiting plate 52 through the bolt 53. The first sealing ring 56 is provided in multiple numbers and is installed on the outer wall of the first sealing plate 54 and the second sealing plate 57, respectively. Through the arrangement of the first sealing plate 54, the sealing effect of the sealing mechanism is further ensured. At the same time, the multi-point installation of the first sealing ring 56 ensures more uniform sealing and effectively prevents leakage of the medium. The arrangement of the second sealing plate 57 provides double protection for the sealing mechanism, further improving the reliability of the leakage prevention.

[0028] Further, the filter screen 62 is provided in multiple numbers and is equidistantly installed on the inner wall of the filter shell 61. Through the arrangement of the filter screen 62, the filter screen 62 is equidistantly installed on the inner wall of the filter shell 61, ensuring uniform distribution of the filtering area and thereby improving the filtering efficiency and effect.

[0029] Further, the mounting groove 63 is equidistantly provided on the inner wall of the filter shell 61. The mounting groove 63 corresponds to the filter screen 62 in position. Through the arrangement of the mounting groove 63, the stability and filtering effect of the filter screen 62 are ensured, and the displacement problem of the filter screen due to vibration or pressure change is avoided.

[0030] Further, the second sealing ring 64 is sleeved on the outer wall of the corresponding filter plate 65, a plurality of filter plates 65 are arranged, and the filter plates 65 are equidistantly arranged in the filter shell 61. Through the arrangement of the filter shell 61 and the equidistant arrangement of the filter plates 65, the uniformity of the medium flow in the filter shell 61 is ensured, and the filtering efficiency is improved.

[0031] Working principle: in use, the stability and sealing effect of the sealing mechanism 5 can be ensured, and the leakage problem caused by the wear of the sealing surface is reduced. The equidistant arrangement of the bolts 53 ensures the uniform pressure between the first sealing plate 54 and the limiting plate 52, thereby improving the sealing performance. The first sealing plate 54 is fixed in the limiting plate 52 by the bolts 53, which ensures the correct position of the sealing plate and the sealing effect. The arrangement of the first sealing ring 56 and the second sealing ring 57 further enhances the sealing effect and prevents the leakage of the medium. The arrangement of the filtering assembly 6 can effectively filter out the impurities in the medium and ensure the cleanliness of the medium. The cooperation of the second sealing ring 64 and the filter plate 65 ensures the sealing performance of the filtering assembly 6 during the filtering process and prevents the leakage of the medium. The equidistant arrangement of the filter screen 62 makes the filtering area uniform and improves the filtering efficiency. The mounting groove 63 corresponds to the position of the filter screen 62 one by one, which ensures the stable installation of the filter screen 62 and avoids the displacement of the filter screen caused by vibration or pressure. The equidistant arrangement of the filter plate 65 makes the medium flow in the filter shell 61 more uniform, which further improves the filtering effect. The arrangement of the bolts 53 makes the connection between the limiting plate 52 and the first sealing plate 54 more firm, thereby enhancing the overall stability of the sealing mechanism. The arrangement of the first sealing plate 54 further ensures the sealing effect of the sealing mechanism. The multi-point installation of the first sealing ring 56 makes the sealing more uniform and effectively prevents the leakage of the medium. The arrangement of the second sealing plate 57 provides double protection for the sealing mechanism and further improves the reliability of the leakage prevention. The equidistant arrangement of the filter screen 62 on the inner wall of the filter shell 61 ensures the uniform distribution of the filtering area, thereby improving the filtering efficiency and effect. The arrangement of the mounting groove 63 ensures the stability and filtering effect of the filter screen 62 and avoids the displacement of the filter screen caused by vibration or pressure change. The arrangement of the filter shell 61 and the equidistant arrangement of the filter plate 65 ensure the uniformity of the medium flow in the filter shell 61, thereby improving the filtering efficiency.

[0032] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A leakage-proof electrically operated butterfly valve comprising a motor (1), characterized in that: The outer wall of the motor (1) is provided with a flange (2), the outer wall of the motor (1) is provided with a butterfly valve body (4), the inner wall of the butterfly valve body (4) is provided with a pipeline (3), the inner wall of the pipeline (3) is provided with a sealing mechanism (5), and the inner wall of the pipeline (3) is provided with a filtering assembly (6); the sealing mechanism (5) comprises a first fixed plate (51), a limiting plate (52), a bolt (53), a first sealing plate (54), a second fixed plate (55), a first sealing ring (56) and a second sealing plate (57), the inner wall of the pipeline (3) is provided with the first fixed plate (51), the inner wall of the first fixed plate (51) is provided with the limiting plate (52), the outer wall of the limiting plate (52) is provided with the bolt (53), the inner wall of the limiting plate (52) is provided with the first sealing plate (54), the inner wall of the first sealing plate (54) is provided with the second fixed plate (55), the outer wall of the second fixed plate (55) is provided with the first sealing ring (56), and the inner wall of the second fixed plate (55) is provided with the second sealing plate (57).

2. A leak-proof electric butterfly valve according to claim 1, characterized in that: The filtering assembly (6) comprises a filtering shell (61), a filtering screen (62), a mounting groove (63), a second sealing ring (64) and a filtering plate (65), the inner wall of the pipeline (3) is provided with the filtering shell (61), the inner wall of the filtering shell (61) is provided with the filtering screen (62), the inner wall of the filtering shell (61) is provided with the mounting groove (63), the inner wall of the mounting groove (63) is provided with the second sealing ring (64), and the inner wall of the filtering shell (61) is provided with the filtering plate (65).

3. A leak-proof electric butterfly valve according to claim 1, characterized in that: The bolt (53) is provided with a plurality of bolts, which are equidistantly arranged on the outer wall of the first sealing plate (54) and the limiting plate (52).

4. The leak-proof electric butterfly valve according to claim 1, characterized in that: The first sealing plate (54) is fixed in the limiting plate (52) by the bolt (53), the first sealing ring (56) is provided with a plurality of first sealing rings, which are respectively arranged on the outer wall of the first sealing plate (54) and the second sealing plate (57).

5. A leak-proof electric butterfly valve according to claim 2, characterized in that: The filtering screen (62) is provided with a plurality of filtering screens, which are equidistantly arranged on the inner wall of the filtering shell (61).

6. A leak-proof electric butterfly valve according to claim 2, characterized in that: The mounting groove (63) is equidistantly arranged on the inner wall of the filtering shell (61), and the mounting groove (63) corresponds to the filtering screen (62) in position.

7. A leak-proof electric butterfly valve according to claim 2, characterized in that: The second sealing ring (64) is arranged on the outer wall of the corresponding filtering plate (65), and the filtering plate (65) is provided with a plurality of filtering plates, which are equidistantly arranged in the filtering shell (61).

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