Pneumatic butterfly valve convenient to install

Abstract

The utility model discloses a pneumatic butterfly valve convenient to install, which comprises a pneumatic butterfly valve body, a valve body is arranged on the pneumatic butterfly valve body, the two ends of the valve body are respectively and fixedly connected with a connecting ring, the inner ring of each connecting ring is vertically and symmetrically provided with an installation screw groove, and one side, far away from the valve body, of each connecting ring is provided with an annular clamping groove. Mounting assemblies are clamped in the connecting rings respectively, the mounting assemblies are fixedly connected in the connecting rings through fixing bolts respectively, the mounting assemblies are clamped in the annular clamping grooves, fixing check blocks are symmetrically and fixedly connected to the upper portion and the lower portion of the inner wall of the two ends of the valve body respectively, and positioning grooves are formed in the sides, close to the mounting assemblies, of the fixing check blocks; a mounting assembly is clamped in the positioning groove; and the outer rings of the connecting rings are fixedly connected with the mounting flanges respectively. According to the pneumatic butterfly valve, pipelines with different diameters can be matched and fixed for installation by replacing the installation assembly, the pneumatic butterfly valve and the pipelines with different diameters can be conveniently installed and fixed, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a pneumatic butterfly valve which is easy to install. Background Art

[0002] The butterfly valve, also known as the flap valve, is a regulating valve with a simple structure and operation. The working principle of the butterfly valve is to achieve the purpose of opening or closing the pipeline medium by rotating the closing member around the valve axis. This valve is an important device in the water supply and drainage pipeline system. It is often used for the switch control of low-pressure pipeline media, and is also suitable for the regulation of low-pressure large-diameter. The opening and closing member of the butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body to achieve the purpose of opening and closing or regulation.

[0003] For example, the Chinese utility model patent with the authorization announcement number CN205859176U discloses a butterfly valve body and a butterfly valve equipped with the valve body, and the key points of the technical solution are: including a valve body and a channel set through the valve body, the channel includes a feed end, a valve seat is provided in the channel, a valve stem is rotatably provided in the channel, a valve plate is fixed on the valve stem, a sealing ring matching the valve seat is provided on the outer circumference of the valve plate, the valve seat is provided at the feed end in the channel, and the end face of the valve seat is provided flush with the end face of the valve body. The valve seat is provided at the feed end, and when working, the fluid first passes through the valve seat and then enters the channel. Since the flow area of ​​the valve seat is smaller than the flow area of ​​the channel, the fluid entering the valve seat can be quickly diffused and will not be retained in the channel, which can prevent impurities and dust in the fluid from falling into the channel and the vicinity of the valve seat, which can effectively reduce the wear of the valve seat and the sealing ring and extend the service life of the valve seat and the sealing ring.

[0004] This device is not convenient for installing and fixing pipes of different diameters. Therefore, we propose an easy-to-install pneumatic butterfly valve to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide a pneumatic butterfly valve which is easy to install, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a pneumatic butterfly valve that is easy to install, comprising a pneumatic butterfly valve body, on which a valve body is provided,

[0007] The two ends of the valve body are respectively fixed with connecting rings, the inner ring of the connecting ring is symmetrically provided with mounting screw grooves, the side of the connecting ring away from the valve body is provided with an annular clamping groove, the connecting ring is respectively clamped with mounting components, the mounting components are respectively fixed in the connecting ring by fixing bolts, the mounting components are clamped in the annular clamping grooves, the inner walls of the two ends of the valve body are respectively symmetrically fixed with fixed blocks, the side of the fixed block close to the mounting component is provided with a positioning groove, the mounting component is clamped in the positioning groove;

[0008] The outer rings of the connecting rings are respectively fixedly connected to the mounting flanges, and the mounting flanges are evenly provided with a plurality of mounting holes;

[0009] The mounting assembly includes a mounting ring, the outer ring of the mounting ring contacts the inner ring of the connecting ring, the inner ring of the mounting ring is symmetrically provided with fixing grooves up and down, the inner bottom surface of the fixing grooves is respectively provided with fixing screw holes, the mounting ring is fixed to the inner ring of the connecting ring by fixing bolts, the fixing bolts pass through the fixing screw holes and are clamped in the mounting screw grooves, the outer ring of the mounting ring is fixed to the fixing ring, the fixing ring is clamped in the annular clamping groove, the side of the mounting ring close to the fixed stop block is symmetrically fixed to the positioning blocks up and down, and the positioning blocks are respectively clamped in the positioning grooves.

[0010] Preferably, the outer diameter of the mounting ring is equal to the inner diameter of the connecting ring, and the thickness of the mounting ring is equal to the thickness of the connecting ring.

[0011] Preferably, the width and thickness of the fixing ring are respectively equal to the width and depth of the annular engaging groove.

[0012] Preferably, the diameter and thickness of the positioning block are respectively equal to the diameter and depth of the positioning groove.

[0013] Preferably, an annular expansion groove is provided on the side of the connecting ring away from the valve body, and limit grooves are symmetrically provided on the inner wall of the outer ring of the annular expansion groove. A plurality of fixed springs are evenly arranged on the inner bottom surface of the annular expansion groove at one end, and the other ends of the fixed springs are respectively fixed to sealing gaskets, and the outer ring of the sealing gasket is symmetrically fixed to limit blocks, and the limit blocks are respectively clamped in the limit grooves.

[0014] Preferably, the width of the sealing gasket is equal to the width of the annular expansion groove, and the length and width of the limiting block are respectively equal to the width and depth of the limiting groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model can be installed by replacing the installation components to match and fix pipes of different diameters, which is convenient for installing and fixing the pneumatic butterfly valve with pipes of different diameters and improving the installation efficiency.

[0017] 2. The sealing gasket on the equipment can be tightly attached to other connection structures under the action of the fixing spring to improve the sealing of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the vertical section structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the structure at center A;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the installation component part in the utility model.

[0022] In the figure: 1. pneumatic butterfly valve body; 101. valve body; 2. connecting ring; 201. mounting screw groove; 202. annular snap-fit ​​groove; 203. annular telescopic groove; 204. limit groove; 3. mounting assembly; 31. mounting ring; 32. fixing groove; 33. fixing screw hole; 34. fixing ring; 35. positioning block; 4. fixing bolt; 5. fixing block; 501. positioning groove; 6. mounting flange; 601. mounting hole; 7. fixing spring; 8. sealing gasket; 801. limit block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] See also Figure 1-4 The utility model provides a technical solution: a pneumatic butterfly valve that is easy to install, comprising a pneumatic butterfly valve body 1, on which a valve body 101 is provided.

[0026] See also Figure 1 , Figure 2 and Figure 3, the two ends of the valve body 101 are respectively fixed to the connecting ring 2, the inner ring of the connecting ring 2 is symmetrically provided with mounting screw grooves 201, and the side of the connecting ring 2 away from the valve body 101 is provided with an annular clamping groove 202, the connecting ring 2 is respectively clamped with the mounting assembly 3, the mounting assembly 3 is respectively fixed in the connecting ring 2 by fixing bolts 4, the mounting assembly 3 is clamped in the annular clamping groove 202, the inner walls of the two ends of the valve body 101 are respectively symmetrically fixed with fixed blocks 5, and the fixed block 5 is provided with a positioning groove 501 on the side close to the mounting assembly 3, and the mounting assembly 3 is clamped in the positioning groove 501;

[0027] See also Figure 1 , the outer rings of the connecting rings 2 are respectively fixedly connected to the mounting flanges 6, and the mounting flanges 6 are evenly provided with a plurality of mounting holes 601;

[0028] See also Figure 3 A ring expansion groove 203 is provided on the side of the connecting ring 2 away from the valve body 101, and limit grooves 204 are symmetrically provided on the inner wall of the outer ring of the ring expansion groove 203. A plurality of fixed springs 7 are evenly arranged on the inner bottom surface of the ring expansion groove 203 at one end, and the other ends of the fixed springs 7 are respectively fixed to the sealing gaskets 8. The outer rings of the sealing gaskets 8 are symmetrically fixed to the limit blocks 801, and the limit blocks 801 are respectively clamped in the limit grooves 204. The sealing gaskets 8 can be tightly attached to other connection structures under the action of the fixed springs 7 to improve the sealing of the connection.

[0029] Furthermore, the width of the sealing gasket 8 is equal to the width of the annular expansion groove 203 , and the length and width of the limiting block 801 are respectively equal to the width and depth of the limiting groove 204 .

[0030] Embodiment 2:

[0031] See also Figure 3 and Figure 4 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment;

[0032] Specifically, the mounting assembly 3 includes a mounting ring 31, the outer ring of the mounting ring 31 contacts the inner ring of the connecting ring 2, the inner ring of the mounting ring 31 is symmetrically provided with fixing grooves 32 from top to bottom, and the inner bottom surfaces of the fixing grooves 32 are respectively provided with fixing screw holes 33, the mounting ring 31 is fixedly connected to the inner ring of the connecting ring 2 by fixing bolts 4, the fixing bolts 4 pass through the fixing screw holes 33 and are clamped in the mounting screw grooves 201, the outer ring of the mounting ring 31 is fixedly connected to the fixing ring 34, the fixing ring 34 is clamped in the annular clamping groove 202, the side of the mounting ring 31 close to the fixed stopper 5 is symmetrically fixedly connected to the positioning blocks 35 from top to bottom, and the positioning blocks 35 are respectively clamped in the positioning grooves 501, the equipment can remove the mounting assembly 3 from the valve body 101 by disassembling the fixing bolts 4, and then replace the mounting rings 31 with different inner ring diameters according to the diameter of the connecting pipe, so as to facilitate the clamping of connecting pipes of different diameters for installation and fixation, thereby improving the efficiency of installation and connection.

[0033] Furthermore, the outer diameter of the mounting ring 31 is equal to the inner diameter of the connecting ring 2 , and the thickness of the mounting ring 31 is equal to the thickness of the connecting ring 2 .

[0034] Furthermore, the width and thickness of the fixing ring 34 are respectively equal to the width and depth of the annular engaging groove 202 .

[0035] Furthermore, the diameter and thickness of the positioning block 35 are respectively equal to the diameter and depth of the positioning groove 501 .

[0036] Embodiment 3:

[0037] See also Figures 1 to 4 , which is the third embodiment of the utility model, and this embodiment is based on the above two embodiments;

[0038] When the utility model is in use, the pipelines that need to be connected with the pneumatic butterfly valve body 1 are respectively clamped at the two ends of the valve body 101, so that the pipelines are clamped in the mounting ring 31 in the mounting assembly 3, and then installed and fixed through the mounting flange 6 and the mounting hole 601. During the connection process, the sealing gasket 8 will be squeezed and pushed into the annular expansion groove 203 to shrink the fixing spring 7, pushing the sealing gasket 8 to always contact the connection structure, thereby improving the sealing of the connection. The equipment can remove the mounting assembly 3 from the valve body 101 by removing the fixing bolt 4, and replace the mounting ring 31 with a different inner ring diameter according to the diameter of the connecting pipe. During installation, the mounting ring 31 is clamped in the connecting ring 2, so that the positioning block 35 and the fixing ring 34 are respectively clamped in the positioning groove 501 and the annular clamping groove 202, and then the fixing bolt 4 is passed through the fixing screw hole 33 and clamped in the mounting screw groove 201 to fix the mounting ring 31, which is convenient for clamping connecting pipes of different diameters for installation and fixation, thereby improving the efficiency of installation and connection.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic butterfly valve that is easy to install, comprising a pneumatic butterfly valve body (1), wherein a valve body (101) is provided on the pneumatic butterfly valve body (1), and characterized in that: The two ends of the valve body (101) are respectively fixedly connected to a connecting ring (2), the inner ring of the connecting ring (2) is symmetrically provided with mounting screw grooves (201) in the upper and lower parts, the side of the connecting ring (2) away from the valve body (101) is provided with an annular clamping groove (202), the connecting ring (2) is respectively clamped with a mounting component (3), the mounting component (3) is respectively fixedly connected to the connecting ring (2) by fixing bolts (4), the mounting component (3) is clamped in the annular clamping groove (202), the inner walls of the two ends of the valve body (101) are respectively symmetrically fixedly connected with fixed blocks (5) in the upper and lower parts, the fixed block (5) is provided with a positioning groove (501) on the side close to the mounting component (3), the mounting component (3) is clamped in the positioning groove (501); The outer rings of the connecting rings (2) are respectively fixedly connected to the mounting flanges (6), and the mounting flanges (6) are evenly provided with a plurality of mounting holes (601); The mounting assembly (3) comprises a mounting ring (31), the outer ring of the mounting ring (31) contacts the inner ring of the connecting ring (2), the inner ring of the mounting ring (31) is symmetrically provided with fixing grooves (32) in the upper and lower parts, the inner bottom surface of the fixing grooves (32) is respectively provided with fixing screw holes (33), the mounting ring (31) is fixedly connected to the inner ring of the connecting ring (2) by fixing bolts (4), the fixing bolts (4) pass through the fixing screw holes (33) and are clamped in the mounting screw grooves (201), the outer ring of the mounting ring (31) is fixedly connected to the fixing ring (34), the fixing ring (34) is clamped in the annular clamping groove (202), and the side of the mounting ring (31) close to the fixing stopper (5) is symmetrically fixedly connected to the positioning blocks (35) in the upper and lower parts, and the positioning blocks (35) are respectively clamped in the positioning grooves (501).

2. A pneumatic butterfly valve that is easy to install according to claim 1, characterized in that: The outer diameter of the mounting ring (31) is equal to the inner diameter of the connecting ring (2), and the thickness of the mounting ring (31) is equal to the thickness of the connecting ring (2).

3. The pneumatic butterfly valve that is easy to install according to claim 1 is characterized in that: The width and thickness of the fixing ring (34) are respectively equal to the width and depth of the annular engaging groove (202).

4. The pneumatic butterfly valve that is easy to install according to claim 1 is characterized in that: The diameter and thickness of the positioning block (35) are respectively equal to the diameter and depth of the positioning groove (501).

5. The pneumatic butterfly valve that is easy to install according to claim 1 is characterized in that: An annular expansion groove (203) is provided on the side of the connecting ring (2) away from the valve body (101), and limit grooves (204) are symmetrically provided on the inner wall of the outer ring of the annular expansion groove (203). The inner bottom surface of the annular expansion groove (203) is evenly provided with one end of a plurality of fixed springs (7), and the other ends of the fixed springs (7) are respectively fixedly connected to sealing gaskets (8), and the outer ring of the sealing gasket (8) is symmetrically fixedly connected to limit blocks (801), and the limit blocks (801) are respectively clamped in the limit grooves (204).

6. The pneumatic butterfly valve that is easy to install according to claim 5 is characterized in that: The width of the sealing gasket (8) is equal to the width of the annular expansion groove (203), and the length and width of the limiting block (801) are respectively equal to the width and depth of the limiting groove (204).

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