Bidirectional sealing butterfly valve

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a two-way sealing butterfly valve which comprises a valve body, and a water inlet channel and a water outlet channel are arranged on the left side and the right side of the valve body respectively. The valve element is arranged in the valve body, and the valve element is fixedly connected with a valve rod; the cleaning mechanism comprises mounting rings, rotating rings, impellers, a connecting frame and a cleaning column, the two mounting rings are fixedly connected in the channel, the impellers are arranged in the rotating rings, the rotating rings are rotationally connected in the mounting rings, and the cleaning column is rotationally connected between the rotating rings through the connecting frame; according to the bidirectional sealing butterfly valve, fluid flows to drive the impeller to rotate, the impeller drives the rotating ring to rotate, the cleaning column rotates along the inner wall of the channel, scale on the inner wall of the channel is automatically cleaned, formation of the scale is avoided, and smoothness of fluid flowing is guaranteed. And the service life of the butterfly valve is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a bidirectional sealing butterfly valve. Background Art

[0002] Butterfly valve, also known as flap valve, is a simple regulating valve, mainly used for the on-off control of low-pressure pipeline media. Its closing part (valve disc or butterfly plate) is a disc, which is opened and closed by rotating around the valve axis. Butterfly valves mainly play the role of cutting off and throttling in pipelines, and can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. Butterfly valves are widely used in many fields, such as agricultural irrigation systems, central air-conditioning systems, chemical industry, water treatment industry, food and pharmaceutical industry, etc. Under special working conditions, such as strict sealing, severe wear, low temperature, etc., specially designed butterfly valves can be used, such as three-eccentric or double-eccentric special butterfly valves. Butterfly valves are powerful and flexible flow control equipment, which can be selected and configured according to different usage requirements.

[0003] The utility model with application number CN201120403594.2 discloses a two-way sealing butterfly valve, including valve body, valve seat, sealing ring, butterfly plate, and pressure plate. The valve seat is fixed in the valve body, the sealing ring and the valve seat form a sealing pair, a sealing ring seat is also arranged between the sealing ring and the butterfly plate, one end of the sealing ring seat is provided with a circle of countersunk holes, which is connected to the butterfly plate by screws, a spring is also arranged between the sealing ring seat and the butterfly plate, the spring is sleeved on the screw, the side surface of the sealing ring seat and the butterfly plate are sealed by an O-ring, there is a gap between the sealing ring seat and the plane of the butterfly plate, the sealing ring is fixed to the sealing ring seat by the pressure plate, a gasket is arranged between the sealing ring and the sealing ring seat, a gasket is also arranged between the pressure plate and the sealing ring seat, a number of pressure balancing holes are also arranged at the position of the cavity formed by the pressure plate and the butterfly plate, a disc spring is also arranged between the screw and the countersunk hole of the sealing ring seat, the beneficial effects of the utility model are that the valve reverse seal is reliable and the service life is long. After the butterfly valve in the utility model is used for a long time, impurities in the fluid will adhere to the inner wall of the butterfly valve channel to form scale, which affects the normal use of the butterfly valve. Utility Model Content

[0004] The utility model aims to solve the above-mentioned technical problems and provides a two-way sealing butterfly valve for cleaning scale on the inner wall of a channel.

[0005] In view of this, the utility model provides a two-way sealed butterfly valve, comprising: a valve body, wherein a water inlet channel and a water outlet channel are respectively provided on the left and right sides of the valve body; a valve core, wherein the valve core is arranged in the valve body, and the valve core is fixedly connected with a valve stem; and further comprising: a cleaning mechanism, wherein the cleaning mechanism comprises a mounting ring, a rotating ring, an impeller, a connecting frame and a cleaning column, wherein the two mounting rings are fixedly connected in the channel, the impeller is arranged in the rotating ring, the rotating ring is rotatably connected in the mounting ring, and the cleaning column is rotatably connected between the rotating rings via the connecting frame; wherein the cleaning mechanism is arranged at the channel.

[0006] In this technical solution, the fluid flow will drive the impeller to rotate, and the impeller will drive the rotating ring to rotate, so that the cleaning column rotates along the inner wall of the channel, automatically cleaning the scale on the inner wall of the channel and avoiding the formation of scale, ensuring the smoothness of the fluid flow and extending the service life of the butterfly valve.

[0007] In the above technical solution, further, the cleaning mechanism also includes: a shaft rod, the shaft rod is fixedly connected to one end of the connecting frame, several of the connecting frames are fixedly connected to the side of the rotating ring, and the cleaning column is rotatably connected between the two shaft rods; an annular groove, the annular groove is opened on the inner side of the mounting ring, and the rotating ring is rotatably connected inside the annular groove; an arc groove, several of the arc grooves are respectively opened on the inner wall of the annular groove and the outer side of the rotating ring, and a ball is arranged between the arc groove on the inner wall of the annular groove and the arc groove on the outer side of the rotating ring; a protective ring, the protective ring is arranged on the side of the mounting ring.

[0008] In the above technical solution, further, a control display mechanism is provided at the top of the valve body.

[0009] In the above technical solution, further, the control and display mechanism includes: a handle, which is connected to the valve stem and can control the opening and closing of the butterfly valve; a connecting seat, which is fixedly connected to the valve body and the valve stem passes through the connecting seat; a perspective port, which is arranged on the connecting seat and the valve stem can be observed through the perspective port; a display color block, which is arranged on the valve stem and can be observed through the perspective port, and the display color block includes a first display color block and a second display color block; wherein, when the butterfly valve is opened, the perspective port displays the first display color block, and when the butterfly valve is closed, the perspective port displays the second display color block.

[0010] In the above technical solution, further, a non-slip rubber sleeve is provided on the handle.

[0011] The beneficial effects of the utility model are:

[0012] 1. The flow of fluid will drive the impeller to rotate, and the impeller will drive the rotating ring to rotate, so that the cleaning column will rotate along the inner wall of the channel, automatically cleaning the scale on the inner wall of the channel and avoiding the formation of scale, ensuring the smooth flow of the fluid and extending the service life of the butterfly valve.

[0013] 2. The design of the arc groove and the ball makes the rotating ring rotate more smoothly in the annular groove, reducing the friction. The protective ring can reduce the impact of the fluid on the side of the mounting ring and the rotating ring.

[0014] 3. When the butterfly valve is open, the perspective port displays the first display color block, and when the butterfly valve is closed, the perspective port displays the second display color block, making it easier for users to determine whether the butterfly valve is open or closed, making it convenient for users to use. The use of display color blocks makes the status indication clearer, reduces the possibility of misoperation, and reduces safety hazards.

[0015] 4. The anti-slip rubber cover on the handle can improve the stability of the user when holding the handle, prevent slipping during operation, and further improve the safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic structural diagram of a specific implementation method of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the cleaning mechanism of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the cleaning column of the utility model.

[0020] Figure 4 This is a schematic structural diagram of the butterfly valve of the utility model when it is opened.

[0021] Figure 5 It is a structural schematic diagram of the closed butterfly valve of the utility model.

[0022] The symbols in the figure are:

[0023] 1. Valve body; 11. Water inlet channel; 12. Water outlet channel; 2. Valve stem; 3. Cleaning mechanism; 31. Mounting ring; 32. Rotating ring; 33. Impeller; 34. Connecting frame; 35. Cleaning column; 36. Shaft; 37. Annular groove; 38. Ball; 39. Protective ring; 4. Control and display mechanism; 41. Handle; 42. Connecting seat; 43. Perspective port; 5. Anti-slip rubber sleeve. DETAILED DESCRIPTION

[0024] 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 of 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.

[0025] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0026] Embodiment 1:

[0027] The embodiment of the present application provides a bidirectional sealing butterfly valve, comprising:

[0028] The valve body 1 has a water inlet channel 11 and a water outlet channel 12 on its left and right sides respectively;

[0029] A valve core is arranged in the valve body 1 and is fixedly connected to a valve stem 2;

[0030] The cleaning mechanism 3 includes a mounting ring 31, a rotating ring 32, an impeller 33, a connecting frame 34 and a cleaning column 35. The two mounting rings 31 are fixedly connected in the channel, the impeller 33 is arranged in the rotating ring 32, the rotating ring 32 is rotatably connected in the mounting ring 31, and the cleaning column 35 is rotatably connected between the rotating rings 32 through the connecting frame 34;

[0031] Among them, the cleaning mechanism 3 is arranged at the channel.

[0032] In this embodiment, refer to Figure 1 and Figure 2 As shown, the fluid flow drives the impeller 33 to rotate, and the impeller 33 drives the rotating ring 32 to rotate, so that the cleaning column 35 rotates along the inner wall of the channel, automatically cleaning the scale on the inner wall of the channel and avoiding the formation of scale, thereby ensuring the smoothness of the fluid flow and extending the service life of the butterfly valve.

[0033] Embodiment 2:

[0034] This embodiment provides a bidirectional sealing butterfly valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the cleaning mechanism 3 also includes:

[0035] A shaft 36, the shaft 36 is fixedly connected to one end of a connecting frame 34, a plurality of connecting frames 34 are fixedly connected to the side of the rotating ring 32, and a cleaning column 35 is rotatably connected between two shafts 36;

[0036] An annular groove 37, the annular groove 37 is provided on the inner side of the mounting ring 31, and the rotating ring 32 is rotatably connected inside the annular groove 37;

[0037] Arc grooves, a plurality of arc grooves are respectively arranged on the inner wall of the annular groove 37 and the outer side of the rotating ring 32, and a ball 38 is arranged between the arc groove on the inner wall of the annular groove 37 and the arc groove on the outer side of the rotating ring 32;

[0038] The protection ring 39 is arranged on the side of the mounting ring 31 .

[0039] In this embodiment, refer to Figure 2 and Figure 3 As shown, the design of the arc groove and the ball 38 makes the rotating ring 32 rotate more smoothly in the annular groove 37, reducing the friction force, and the protective ring 39 can reduce the impact of the fluid on the side of the mounting ring 31 and the rotating ring 32.

[0040] Embodiment 3:

[0041] This embodiment provides a bidirectional sealing butterfly valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features: a control display mechanism 4 is provided at the top of the valve body 1, and the control display mechanism 4 includes:

[0042] A handle 41, which is connected to the valve stem 2 and can control the opening and closing of the butterfly valve;

[0043] A connecting seat 42, the connecting seat 42 is fixedly connected to the valve body 1, and the valve stem 2 passes through the connecting seat 42;

[0044] A perspective opening 43, which is disposed on the connecting seat 42, through which the valve stem 2 can be observed;

[0045] Display color block, the display color block is arranged on the valve stem 2, the display color block can be observed through the perspective opening 43, and the display color block includes a first display color block and a second display color block;

[0046] When the butterfly valve is opened, the perspective opening 43 displays a first display color block, and when the butterfly valve is closed, the perspective opening 43 displays a second display color block.

[0047] In this embodiment, refer to Figure 4 and Figure 5 As shown, when the butterfly valve is open, the perspective opening 43 displays a first display color block, and when the butterfly valve is closed, the perspective opening 43 displays a second display color block, making it easier for the user to determine whether the butterfly valve is open or closed, and facilitating the user's use. The use of display color blocks makes the status indication clearer, reduces the possibility of misoperation, and reduces safety hazards.

[0048] Embodiment 4:

[0049] This embodiment provides a bidirectional sealing butterfly valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features: a non-slip rubber sleeve 5 is provided at the handle 41.

[0050] In this embodiment, refer to Figure 4 and Figure 5 As shown, the anti-skid rubber sleeve 5 at the handle of the handle 41 can improve the stability of the user when holding the handle 41, prevent slipping during operation, and further improve the safety of operation.

[0051] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A two-way sealing butterfly valve, comprising: A valve body (1), wherein a water inlet channel (11) and a water outlet channel (12) are respectively provided on the left and right sides of the valve body (1); A valve core, the valve core being arranged in the valve body (1) and fixedly connected to a valve stem (2); It is characterized by further comprising: A cleaning mechanism (3), the cleaning mechanism (3) comprising a mounting ring (31), a rotating ring (32), an impeller (33), a connecting frame (34) and a cleaning column (35), wherein the two mounting rings (31) are fixedly connected in the channel, the impeller (33) is arranged in the rotating ring (32), the rotating ring (32) is rotatably connected in the mounting ring (31), and the cleaning column (35) is rotatably connected between the rotating rings (32) via the connecting frame (34); Wherein, the cleaning mechanism (3) is arranged at the channel.

2. A bidirectional sealing butterfly valve according to claim 1, characterized in that: The cleaning mechanism (3) further comprises: A shaft (36), the shaft (36) is fixedly connected to one end of a connecting frame (34), a plurality of connecting frames (34) are fixedly connected to the side of the rotating ring (32), and the cleaning column (35) is rotatably connected between the two shafts (36); An annular groove (37), the annular groove (37) is opened on the inner side of the mounting ring (31), and the rotating ring (32) is rotatably connected inside the annular groove (37); Arc grooves, wherein a plurality of the arc grooves are respectively arranged on the inner wall of the annular groove (37) and the outer side of the rotating ring (32), and a ball (38) is provided between the arc groove on the inner wall of the annular groove (37) and the arc groove on the outer side of the rotating ring (32); A protective ring (39) is provided on a side of the mounting ring (31).

3. A bidirectional sealing butterfly valve according to claim 1, characterized in that: A control display mechanism (4) is provided at the top end of the valve body (1).

4. A bidirectional sealing butterfly valve according to claim 3, characterized in that: The control and display mechanism (4) comprises: A handle (41), the handle (41) being connected to the valve stem (2), and the handle (41) being capable of controlling the opening and closing of the butterfly valve; A connecting seat (42), wherein the connecting seat (42) is fixedly connected to the valve body (1), and the valve stem (2) passes through the connecting seat (42); A perspective opening (43), wherein the perspective opening (43) is provided on the connecting seat (42), and the valve stem (2) can be observed through the perspective opening (43); A display color block, the display color block being arranged on the valve stem (2), the display color block being observable through the perspective opening (43), and the display color block comprising a first display color block and a second display color block; When the butterfly valve is open, the perspective opening (43) displays a first display color block, and when the butterfly valve is closed, the perspective opening (43) displays a second display color block.

5. A bidirectional sealing butterfly valve according to claim 4, characterized in that: The handle of the handle (41) is provided with an anti-slip rubber sleeve (5).

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