Butterfly valve with double-channel structure

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with a double-channel structure, which comprises a valve body, a mounting table is fixedly connected onto the valve body, a butterfly plate is arranged in the valve body, and a first channel and a second channel are fixedly connected onto the valve body. A control switch assembly used for opening the butterfly plate and controlling the liquid discharging conditions of the first channel and the second channel at the same time is arranged in the mounting table and comprises a gear arranged in the mounting table, and the gear is meshed with a rack. The butterfly valve is provided with the first channel and the second channel, so that the butterfly valve forms two channels, and under the cooperation of the control switch assembly, the threaded rod is rotated to drive the rack to move, so that the gear rotates to open the butterfly plate; the blocking plate moves to different positions through movement of the bent plate to achieve the purposes of independently using the first channel or the second channel and simultaneously using the two channels, that is, different channels of the whole device are opened to achieve liquid drainage, the liquid drainage flow direction can be changed, multiple valves do not need to be arranged, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to butterfly valve technical field especially relates to a butterfly valve of double channel structure. BACKGROUND

[0002] The butterfly valve is also called flap valve, and it is a simple structure regulating valve, and can be used for on-off control of low-pressure pipeline medium, and the butterfly valve refers to a disc-shaped closing part (valve disc or butterfly plate) which rotates around a valve shaft to achieve opening and closing.

[0003] At present, the butterfly valve used in the market is mostly single-channel valve, and the conveying direction is single, and the flow direction cannot be changed, so it is very inconvenient to change the flow direction, two single-channel valves need to be set, the cost of valve use is increased, and inconvenience is caused to the user.

[0004] Therefore, the butterfly valve of double channel structure is provided. UTILITY MODEL CONTENTS

[0005] The utility model discloses a butterfly valve of double channel structure, to solve the problem that the butterfly valve used in the market is mostly single-channel valve, and the conveying direction is single, and the flow direction cannot be changed, so it is very inconvenient to change the flow direction, two single-channel valves need to be set, the cost of valve use is increased, and inconvenience is caused to the user.

[0006] To achieve the above object, the utility model provides the following technical scheme: a butterfly valve of double channel structure, including the valve body, the installation platform is fixedly connected on the valve body, the butterfly plate is equipped in the valve body, the first channel and the second channel are fixedly connected on the valve body, the control switch assembly for opening the butterfly plate simultaneously can control the first channel and the second channel drainage condition is equipped in the installation platform, the gear is equipped in the installation platform, the rack is engaged on the gear, the bent plate is fixedly connected on the rack, the blocking plate for plugging the first channel and the second channel is fixedly connected on the bent plate.

[0007] Preferably, the rotating rod is rotatably connected in the installation platform, the butterfly plate is fixedly connected on the rotating rod, and the gear is fixedly connected on the top end of the rotating rod.

[0008] Preferably, the threaded rod is rotatably connected on the installation platform, the connecting plate for pushing the rack movement is threadedly connected on the threaded rod, and the connecting plate is fixedly connected with the rack.

[0009] Preferably, a limiting groove and a guide groove are formed in the mounting table, a moving block is fixedly installed on the rack, and the moving block is slidingly connected in the limiting groove, and the bending plate is slidingly connected in the guide groove.

[0010] Preferably, a guide block is fixedly connected in the valve body, and the bending plate is slidingly connected in the guide block, and the valve body and the first channel and the second channel form a first liquid outlet and a second liquid outlet for liquid discharge.

[0011] Preferably, an extrusion plate for generating pressure when the barrier plate moves is fixedly installed in the valve body, a sealing gasket is fixedly connected on the barrier plate, and an inclined surface is formed in the extrusion plate.

[0012] Preferably, a scale line for measuring the moving distance of the bending plate is arranged on the mounting table, a mark line for cooperating with the scale line is arranged on the bending plate, and a connecting disc is fixedly connected on the first channel and the second channel.

[0013] The beneficial effects of the present application are as follows:

[0014] The first channel and the second channel are arranged to form a double-channel butterfly valve, and under the cooperation of the control switch assembly, the rotation of the threaded rod drives the rack to move to rotate the gear to open the butterfly plate, the movement of the bending plate moves the barrier plate to different positions to achieve the purpose of using the first channel or the second channel alone or using both channels at the same time, that is, the device opens different channels to realize liquid discharge, the liquid discharge direction can be changed, multiple valves are not needed, and the device is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only a part of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is a whole structure schematic view of a double-channel structure butterfly valve of the embodiment of the present application.

[0017] Figure 2 It is a mounting table cross-sectional structure schematic view of a double-channel structure butterfly valve of the embodiment of the present application.

[0018] Figure 3 It is a butterfly valve cross-sectional structure schematic view of a double-channel structure butterfly valve of the embodiment of the present application.

[0019] Figure 4The utility model discloses a double channel structure's butterfly valve's butterfly plate rotation process structure schematic diagram for embodiment of the utility model.

[0020] Figure 5 The utility model discloses a double channel structure's butterfly valve's Figure 4 The enlarged structure schematic diagram of A place in the middle shows.

[0021] Figure 6 The utility model discloses a double channel structure's butterfly valve's installation platform structure schematic diagram.

[0022] Marked as: 1, valve body;2, installation platform;3, butterfly plate;4, first channel;5, second channel;6, gear;7, rack;8, bending plate;9, barrier plate;10, rotating rod;11, threaded rod;12, connecting plate;13, limit slot;14, guide groove;15, moving block;16, guide block;17, first liquid port;18, second liquid port;19, extrusion plate;20, sealing gasket;21, inclined plane;22, scale line;23, connecting disc. Specific implementation

[0023] In order to make the purpose, technical scheme and advantage of the utility model more clearly and clearly, the following is in combination with specific embodiment, and the utility model is further detailed.

[0024] It is to be noted that, unless otherwise defined, the technical terms or scientific terms used in the utility model should be the usual meaning understood by the person skilled in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, when the absolute position of the described object changes, the relative positional relationship can also change accordingly.

[0025] For example, Figures 1 to 6The utility model discloses a butterfly valve of double channel structure, including the valve body 1, the fixedly connected with the installation platform 2 of valve body 1, be equipped with the butterfly plate 3 in valve body 1, the fixedly connected with first channel 4 and second channel 5 of valve body 1, through setting up first channel 4 and second channel 5 form the butterfly valve with double channel structure, to facilitate butterfly valve when access use can change internal liquid flow direction, form multiple channels, need not to set up multiple valves separately to change flow direction, reduce cost, bring convenience, installation platform 2 is equipped with control switch assembly for opening butterfly plate 3 can control first channel 4 and second channel 5 drainage condition, by setting up control switch assembly can make in opening valve body 1 can control first channel 4 and second channel 5 drainage condition, namely control first channel 4 and second channel 5, according to need to use the required access, control switch assembly includes the gear 6 in installation platform 2, the gear 6 is engaged with rack 7, rack 7 is fixedly connected with the bent plate 8, the bent plate 8 is fixedly connected with the blocking plate 9 for blocking first channel 4 and second channel 5.

[0026] As Figures 1 to 4As shown, specifically, the first channel 4 and the second channel 5 are fixedly connected with the connecting disc 23 during the whole device accessing the pipeline, the connecting disc 23 is used to access different pipelines, so that the first channel 4 and the second channel 5 can be connected with different pipelines to drain liquid in different positions, and then the purpose of changing the flow direction is achieved, after the installation and connection are completed, in the initial state, the butterfly plate 3 is in a static state as a sealed state, the liquid in the pipeline cannot flow to the first channel 4 and the second channel 5 through the valve body 1, that is, the whole device is in a closed state, when the second channel 5 is needed to drain liquid and transport liquid, the rotating rod 10 is rotatably connected in the installation table 2, the butterfly plate 3 is fixedly connected with the rotating rod 10, and the gear 6 is fixedly connected with the top end of the rotating rod 10, the threaded rod 11 is rotatably connected on the installation table 2, the connecting plate 12 for pushing the rack 7 to move is threadedly connected on the threaded rod 11, and the connecting plate 12 is fixedly connected with the rack 7, the limiting groove 13 and the guide groove 14 are formed in the installation table 2, the moving block 15 is fixedly installed on the rack 7 and is slidably connected in the limiting groove 13, the bending plate 8 is slidably connected in the guide groove 14, rotating the threaded rod 11 makes the connecting plate 12 move on the threaded rod 11, so that the movement of the connecting plate 12 drives the rack 7 to move in the limiting groove 13, and the movement of the rack 7 and the meshing effect between the gear 6 make the gear 6 rotate, and the rotation of the gear 6 drives the rotating rod 10 to rotate, so that the butterfly plate 3 on the rotating rod 10 rotates, the guide block 16 is fixedly connected in the valve body 1, and the bending plate 8 is slidably connected in the guide block 16, the valve body 1 and the first channel 4 and the second channel 5 form the first liquid port 17 and the second liquid port 18 for draining liquid, at the same time, the movement of the rack 7 drives the bending plate 8 to move in the guide block 16, so that the movement of the bending plate 8 pushes the blocking plate 9 to move in the valve body 1 and tightly abuts against the inner wall thereof, the setting of the guide block 16 makes the contact area of the bending plate 8 in the valve body 1 increase, so as to be beneficial to strengthening the sealing effect.

[0027] As Figures 5 to 6As shown, in particular, the valve body 1 is fixedly installed with an extrusion plate 19 for blocking the pressure generated when the blocking plate 9 moves, the blocking plate 9 is fixedly connected with a sealing gasket 20, and the extrusion plate 19 is provided with an inclined surface 21. In the above process, the blocking plate 9 gradually moves under the guidance of the inclined surface 21 of the extrusion plate 19, so that the blocking plate 9 gradually enters the extrusion plate 19, thereby forming an extrusion effect of the extrusion plate 19 on the blocking plate 9. Under the extrusion effect, the sealing gasket 20 gradually shrinks, and the blocking plate 9 is tightly attached to the inner wall of the valve body 1. After the blocking plate 9 moves by a distance, the first liquid port 17 is blocked and sealed, so that the liquid in the valve body 1 cannot enter the first channel 4 through the first liquid port 17 and be discharged outward. When the threaded rod 11 is rotated again to make the blocking plate 9 continue to move, the blocking plate 9 moves to the first liquid port 17 and the second liquid port 18. At this time, the liquid in the valve body 1 can be discharged into the first channel 4 and the second channel 5 through the first liquid port 17 and the second liquid port 18, that is, both channels can discharge liquid outward. When the blocking plate 9 continues to move to the second liquid port 18 and blocks and seals it, the liquid in the valve body 1 can be discharged into the first channel 4 through the first liquid port 17 and then discharged outward. Figure 4 As shown, when the threaded rod 11 is rotated to make the butterfly plate 3 in the rotating process, the butterfly plate 3 is always in an open state. According to the different positions of the butterfly plate 3, the blocking plate 9 is in different positions, that is, divided into three stages. The first stage is to block the first liquid port 17 so that the second liquid port 18 is in a smooth state of liquid discharge, that is, the second channel 5 is used. The second stage is that the blocking plate 9 is between the first liquid port 17 and the second liquid port 18, and the first liquid port 17 and the second liquid port 18 are both in a smooth state, that is, the first channel 4 and the second channel 5 are used at the same time. The third stage is that the blocking plate 9 blocks the second liquid port 18 so that the first liquid port 17 is in a smooth state of liquid discharge, that is, the first channel 4 is used. Thus, the entire device only needs to rotate the threaded rod 11 to open the butterfly plate 3 and open different channels to achieve liquid discharge. The installation table 2 is provided with a scale line 22 for measuring the moving distance of the bending plate 8, and the bending plate 8 is provided with a mark line for cooperating with the scale line 22. By cooperating the scale line 22 and the mark line, the moving distance of the bending plate 8 can be determined, that is, the distance of the threaded rod 11 is determined to make the bending plate 8 move, thereby facilitating the determination of the distance of the blocking plate 9 to move to achieve the opening or blocking of different channels.

[0028] Those skilled in the art will understand that the discussion of any of the above embodiments is merely exemplary and is not intended to limit the scope of the present application (including claims) to these examples; the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above. In order to be brief, they are not provided in detail.

[0029] The present application is intended to cover all such alternatives, modifications, and variations that fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications and variations should be included within the scope of the present application.

Claims

1. A butterfly valve of double pass structure comprising a valve body (1), characterized in that, The valve body (1) is fixedly connected with a mounting table (2), the valve body (1) is provided with a butterfly plate (3), and the valve body (1) is fixedly connected with a first channel (4) and a second channel (5); The mounting table (2) is provided with a control switch assembly for opening the butterfly plate (3) and controlling the liquid discharge of the first channel (4) and the second channel (5), the control switch assembly comprises a gear (6) arranged in the mounting table (2), the gear (6) is engaged with a rack (7), the rack (7) is fixedly connected with a bent plate (8), and the bent plate (8) is fixedly connected with a blocking plate (9) for blocking the first channel (4) and the second channel (5).

2. A butterfly valve of double pass construction according to claim 1, characterised in that The mounting table (2) is rotatably connected with a rotating rod (10), the butterfly plate (3) is fixedly connected to the rotating rod (10), and the gear (6) is fixedly connected to the top end of the rotating rod (10).

3. The double passageway structure butterfly valve according to claim 1, characterized in that, The mounting table (2) is rotatably connected with a threaded rod (11), the threaded rod (11) is threadedly connected with a connecting plate (12) for pushing the rack (7) to move, and the connecting plate (12) is fixedly connected with the rack (7).

4. The double passageway butterfly valve according to claim 1, wherein, The mounting table (2) is provided with a limiting groove (13) and a guide groove (14), the rack (7) is fixedly provided with a moving block (15), and the moving block (15) is slidably connected in the limiting groove (13), and the bent plate (8) is slidably connected in the guide groove (14).

5. The double passageway butterfly valve according to claim 1, wherein, The valve body (1) is fixedly connected with a guide block (16), and the bent plate (8) is slidably connected in the guide block (16), and the valve body (1) and the first channel (4) and the second channel (5) form a first liquid port (17) and a second liquid port (18) for discharging liquid.

6. The double passageway structure butterfly valve according to claim 1, characterized in that, The valve body (1) is fixedly provided with an extrusion plate (19) for generating pressure when the blocking plate (9) moves, the blocking plate (9) is fixedly connected with a sealing gasket (20), and the extrusion plate (19) is provided with an inclined surface (21).

7. The double passageway butterfly valve according to claim 1, wherein, The mounting table (2) is provided with a scale line (22) for measuring the moving distance of the bent plate (8), and the bent plate (8) is provided with a mark line for cooperating with the scale line (22), and the first channel (4) and the second channel (5) are fixedly connected with a connecting disc (23).

Images