Auxiliary connecting device for pneumatic butterfly valve

Abstract

The utility model discloses an auxiliary connecting device for a pneumatic butterfly valve, and belongs to the technical field of butterfly valves. The auxiliary connecting device for the pneumatic butterfly valve comprises a pneumatic butterfly valve body and a pipeline body tightly connected with the pneumatic butterfly valve body, the two ends of the pneumatic butterfly valve body are fixedly connected with first flanges, and one end of the pipeline body is fixedly sleeved with a second flange. The first flange protrudes outwards to be provided with a positioning device used for installing and positioning the pneumatic butterfly valve body, an auxiliary connecting device is arranged on the end face of the positioning device, an installing groove is formed in the outer surface of the second flange, and an electromagnetic chuck capable of being magnetically fixed to the auxiliary connecting device is installed in the installing groove. The pneumatic butterfly valve solves the problem that an existing pneumatic butterfly valve is inconvenient to disassemble and assemble, through magnetic connection of the electromagnetic chuck and the magnet, the pneumatic butterfly valve body and the pipeline body are quite convenient to assemble and disassemble, and compared with a traditional manual bolt installation mode, manpower and time cost are greatly saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to butterfly valve technical field, concretely is a kind of auxiliary connecting device for pneumatic butterfly valve. BACKGROUND

[0002] Pneumatic butterfly valve is installed between two pipes, and its both sides are fixedly connected with pipe through flange and bolt, but after long-term use, gas leakage may occur at the connection between pneumatic butterfly valve and pipe.

[0003] The reason for this phenomenon is that the pipe bolt is gradually loosened due to impact and pressure fluctuation after long-term use, which further causes unstable connection between pneumatic butterfly valve and pipe and leakage. To solve this problem, the staff can tighten or replace the bolt after the end of pipe transportation.

[0004] However, long-distance and large-capacity transportation often takes several days or even longer. Assuming that the bolt is loosened during transportation, it is necessary to immediately stop transportation, close the pneumatic butterfly valve to prevent further leakage, ensure safety and perform emergency repair. In this way, the transportation efficiency is delayed and the project progress is affected.

[0005] Therefore, we propose an auxiliary connecting device for pneumatic butterfly valve to solve the above problems. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims to provide an auxiliary connecting device for pneumatic butterfly valve, which can greatly improve the stability of pneumatic butterfly valve through electromagnetic auxiliary connection, prevent leakage caused by bolt loosening and thus ensure transportation efficiency.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: an auxiliary connecting device for pneumatic butterfly valve, comprising a pneumatic butterfly valve body, the pneumatic butterfly valve body is tightly connected with a pipe body through a flange and a bolt, the flange comprises a first flange and a second flange, the first flange outwardly protrudes a positioning device for installing and positioning the pneumatic butterfly valve body, the end surface of the positioning device is provided with an auxiliary connecting device for strengthening connection, the outer surface of the second flange is provided with a mounting groove, and an electromagnetic chuck capable of being magnetically fixed with the auxiliary connecting device is installed in the mounting groove.

[0008] Preferably, the two sides of the mounting groove are provided with positioning grooves, the positioning device is a mounting block and a positioning block, and the positioning block is provided with two and fixed on the two sides of the mounting block.

[0009] Preferably, the mounting block is matched with the positioning block, the mounting groove and the positioning groove, and is inserted into the inside of the mounting groove and the positioning groove.

[0010] Preferably, the auxiliary connecting device is a magnet.

[0011] Preferably, the electromagnetic chuck is located on the bottom surface inside the mounting groove.

[0012] Preferably, the electromagnetic chuck is powered by direct current.

[0013] Preferably, the magnet is connected with the electromagnetic chuck by electromagnetic force.

[0014] Preferably, an annular sealing ring is fixedly installed at the connection between the pneumatic butterfly valve body and the pipeline body.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] (1) the auxiliary connecting device for the pneumatic butterfly valve greatly improves the stability of the pneumatic butterfly valve by the electromagnetic auxiliary connection, prevents leakage caused by bolt loosening, and thus guarantees the conveying efficiency.

[0017] (2) the auxiliary connecting device for the pneumatic butterfly valve of the utility model is operated in a remote control mode, the convenience of operation is increased, the electromagnetic chuck is controlled to generate magnetic force when the pipeline needs to be kept conveying and bolt loosening occurs, the loosened part is firmly fixed, and thus the conveying efficiency is continuously guaranteed.

[0018] (3) the auxiliary connecting device for the pneumatic butterfly valve of the utility model is provided with positioning grooves on the two sides of the installation groove, and the installation block is fixedly provided with positioning blocks, the stability of the first flange and the second flange when being connected is further increased after the positioning blocks are inserted into the positioning grooves.

[0019] (4) the auxiliary connecting device for the pneumatic butterfly valve of the utility model is provided with an annular sealing ring fixedly installed at the connection between the pneumatic butterfly valve body and the pipeline body, the sealing effect of the connection is effectively improved, and leakage is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic view of the whole utility model;

[0021] Figure 2 is a schematic view of the whole utility model from another angle;

[0022] Figure 3 is a schematic view of the first flange structure of the utility model;

[0023] Figure 4 is a schematic view of the second flange structure of the utility model.

[0024] In the drawing: 1, pneumatic butterfly valve body; 11, first flange; 12, installation block; 121, positioning block; 122, magnet; 13, sealing ring; 14, bolt; 2, pipeline body; 21, second flange; 22, installation groove; 221, positioning groove; 222, electromagnetic chuck. DETAILED DESCRIPTION

[0025] The technical solutions 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, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figures 1-4 A kind of auxiliary connecting device for pneumatic butterfly valve, including pneumatic butterfly valve body 1, pneumatic butterfly valve body 1 is connected with pipeline body 2 by flange piece and bolt 14, flange piece includes first flange 11 and second flange 21, first flange 11 is outwardly convex and is equipped with the positioning device for the installation positioning of pneumatic butterfly valve body 1, the end surface of positioning device is equipped with auxiliary connecting device for strengthening connection, second flange 21 outer surface is equipped with installation groove 22, installation groove 22 is equipped with electromagnetic chuck 222 that can be magnetized with auxiliary connecting device, in the process of use, when first flange 11 and second flange 21 are connected initially by installation block 12 and installation groove 22, permanent magnet 122 will be closely attached to electromagnetic chuck 222, at this time, when the bolt 14 that pneumatic butterfly valve body 1 is connected with pipeline body 2 is loose or unstable, staff can start electromagnetic chuck 222 in the bottom surface of installation groove 22, by electric drive makes it produce powerful magnetic force, and with permanent magnet 122 form firm magnetic connection, so that pneumatic butterfly valve body 1 and pipeline body 2 are firmly combined together, so as to guarantee the stability of conveying, after conveying, old loose bolt 14 can be replaced, so as to prevent leakage due to bolt 14 loosening, avoid emergency shutdown maintenance, delay the delivery period, electromagnetic chuck 222 as a mature technology, has been widely used in hoisting, machinery and other fields, and its reliability and stability have been fully verified, can ensure that when bolt 14 is loose, pneumatic butterfly valve and pipeline are still closely connected, meet the conveying demand.

[0027] Further, the two sides of installation groove 22 are equipped with positioning groove 221, positioning device is installation block 12 and positioning block 121, positioning block 121 is equipped with two, fixed on the two sides of installation block 12, in the process of use, in addition to the accurate insertion of installation block 12 in installation groove 22 to realize initial connection, two positioning blocks 121 will also be embedded in positioning groove 221 simultaneously, this double positioning design not only ensures the accurate alignment between first flange 11 and second flange 21, but also significantly enhances the overall stability of connection, through this structure optimization, the combination of pneumatic butterfly valve body 1 and pipeline body 2 is more firm, effectively avoids loosening caused by vibration or external force, further improves the reliability and safety of equipment operation.

[0028] Further, the mounting blocks 12 are adapted with the positioning blocks 121 and the mounting grooves 22 and the positioning grooves 221, and are inserted into the inside of the mounting grooves 22 and the positioning grooves 221. In use, several mounting blocks 12 on the surface of the first flange 11 are inserted into the inside of the mounting grooves 22 on the surface of the second flange 21, so that the preliminary connection of the pneumatic butterfly valve body 1 and the pipeline body 2 can be realized.

[0029] Further, the auxiliary connecting device is a magnet 122, which has magnetism and can be magnetically connected with the electromagnetic chuck 222.

[0030] Further, the electromagnetic chuck 222 is located on the bottom surface inside the mounting groove 22. In use, the electromagnetic force lines are uniformly distributed on the surface of the magnetic disc, and the uniformly distributed magnetic force lines can effectively improve the magnetic connection effect of the electromagnetic chuck 222.

[0031] Further, the electromagnetic chuck 222 adopts direct current power supply. In use, the electromagnetic chuck 222 can be operated in the form of remote control, thereby increasing the convenience.

[0032] Further, the magnet 122 is magnetically connected with the electromagnetic chuck 222 through power supply. In the use process, when the magnet 122 is in close contact with the electromagnetic chuck 222, the electromagnetic chuck 222 is powered through remote control operation, so that strong magnetic force can be generated rapidly to firmly connect the two together. Only by making the electromagnetic chuck 222 lose power through remote control, the magnetic force disappears immediately. This innovative design provides users with more flexible and efficient experience.

[0033] Further, the connection part between the pneumatic butterfly valve body 1 and the pipeline body 2 is fixedly installed with an annular sealing ring 13. In the use process, by arranging the annular sealing ring 13 at the connection part between the pneumatic butterfly valve body 1 and the pipeline body 2, the sealing performance of the connection part can be significantly improved. The sealing ring 13 is made of high-elasticity and corrosion-resistant material, which can effectively fill the connection gap and prevent medium leakage, so as to ensure the stability and safety of system operation. This design not only enhances the overall sealing effect of the pneumatic butterfly valve, but also prolongs the service life of the equipment, reduces the maintenance cost, and provides users with more reliable and efficient sealing solutions.

[0034] Working principle: the utility model discloses a kind of auxiliary connecting device for pneumatic butterfly valve, during use, mounting block 12 on first flange 11 is inserted into the installation groove 22 of second flange 21, and preliminary mechanical connection is realized.The positioning block 121 of mounting block 12 two sides is embedded in the positioning groove 221 of installation groove 22 two sides, ensure the accurate alignment between flange, enhance the stability of connection, the permanent magnet 122 of mounting block 12 end face is in close contact with the electromagnetic chuck 222 of installation groove 22 bottom surface.When bolt 14 loosens, through remote control to start electromagnetic chuck 222, make it energized to generate strong magnetic force, and permanent magnet 122 forms firm magnetic connection, ensure that pneumatic butterfly valve main body 1 and pipeline main body 2 are stably combined, annular sealing ring 13 is installed at the connecting place of pneumatic butterfly valve main body 1 and pipeline main body 2, adopt high elasticity, corrosion-resistant material, effectively fill the connecting gap, prevent medium leakage, improve the stability and safety of system operation, electromagnetic chuck 222 uses remote control operation, after energization, quickly connect with permanent magnet 122, after power-off, magnetic force disappears, mechanical connection and magnetic connection double design, even if bolt 14 loosens, magnetic connection can still ensure the close connection between pneumatic butterfly valve main body 1 and pipeline main body 2, avoid leakage or emergency shutdown maintenance.

Claims

1. An auxiliary connecting device for a pneumatic butterfly valve, comprising a pneumatic butterfly valve body (1) which is tightly connected with a pipeline body (2) through a flange and bolts (14), characterized in that, The flange comprises a first flange (11) and a second flange (21), the first flange (11) is outwardly convexly provided with a positioning device for positioning installation of the pneumatic butterfly valve body (1), an end surface of the positioning device is provided with an auxiliary connecting device for reinforcing connection, and an outer surface of the second flange (21) is provided with an installation groove (22), and an electromagnetic chuck (222) capable of being magnetically fixed with the auxiliary connecting device is installed in the installation groove (22).

2. The auxiliary connection device for a pneumatic butterfly valve according to claim 1, characterized in that: Two sides of the installation groove (22) are provided with positioning grooves (221), the positioning device is an installation block (12) and a positioning block (121), the positioning block (121) is provided with two and is fixed on two sides of the installation block (12).

3. The auxiliary connection device for a pneumatic butterfly valve according to claim 2, characterized in that: The installation block (12) is matched with the positioning block (121), the installation groove (22) and the positioning groove (221), and is inserted into the installation groove (22) and the positioning groove (221).

4. The auxiliary connection device for a pneumatic butterfly valve according to claim 1, characterized in that: The auxiliary connecting device is a magnet (122).

5. The auxiliary connection device for a pneumatic butterfly valve according to claim 4, characterized in that: The electromagnetic chuck (222) is located on the bottom surface in the installation groove (22).

6. An auxiliary connection device for a pneumatic butterfly valve according to claim 5, characterized in that: The electromagnetic chuck (222) adopts direct current power supply.

7. The auxiliary connection device for a pneumatic butterfly valve according to claim 6, characterized in that: The magnet (122) is connected with the electromagnetic chuck (222) through electromagnetic force.

8. The auxiliary connection device for a pneumatic butterfly valve according to claim 1, characterized in that: An annular sealing ring (13) is fixedly installed at a connection position of the pneumatic butterfly valve body (1) and a pipeline body (2).

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