Butterfly valve with ventilation structure

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with a ventilation structure. The valve comprises a valve body, the arc surface of the valve body is fixedly connected with a plurality of hanging lugs, the surface of the valve body is provided with an adjusting device, the adjusting device comprises a mounting bin, the mounting bin is fixedly connected with the arc surface of the valve body, the upper surface of the mounting bin is communicated with a placing bin, a driving rod is rotatably connected in the placing bin, and the driving rod is fixedly connected with the arc surface of the valve body. The driving rod is slidably connected with the inner surface of the mounting bin, a valve plate is mounted at one end of the driving rod, a connecting plate is fixedly connected to one end of the driving rod, and a sliding rod is slidably inserted into the connecting plate. The problem that when a worker needs to adjust the position of a valve plate, the position of the valve plate can only be determined according to the water flow when the valve plate is opened, so that the worker cannot directly adjust the valve plate to the angle needing to be opened, and the worker operates a driving rod many times is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with a ventilation structure. Background Art

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve that can be used for on-off control of low-pressure pipeline media. A butterfly valve is a valve with a disc as the closing member, which rotates around the valve shaft to open and close. It is widely used in industrial pipelines such as electricity, petrochemicals, water supply and drainage, and municipal construction to regulate flow and carry and cut off fluids.

[0003] Chinese patent application CN201020283936.7 discloses a ventilation butterfly valve. The key technical solution is as follows: The valve closing limit device of the ventilation butterfly valve of the utility model is equipped with a magnetic body at the fully closed limit position of the worm gear, or a magnetic body of opposite polarity is installed on the corresponding housing. When the worm gear rotates to the fully closed limit position, the magnetic body and the meshing teeth of the worm gear attract each other, or the two magnetic bodies of opposite polarity attract each other, exerting a radial force in the worm gear in the closing direction, thereby preventing the worm gear from easily rotating in the opening direction and driving the valve back. Therefore, the ventilation butterfly valve of the utility model has a simple structure, is easy to operate, and has outstanding effects, making it suitable for widespread application.

[0004] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when the staff needs to adjust the position of the valve plate, the position of the valve plate can only be determined by the size of the water flow when opening the valve plate, resulting in the staff being unable to directly adjust the valve plate to the required opening angle, resulting in the staff operating the driving rod multiple times; therefore, in response to the above problems, a butterfly valve with a ventilation structure is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that when opening the valve plate, the position of the valve plate can only be determined by the size of the water flow, resulting in the staff being unable to directly adjust the valve plate to the required opening angle and the staff having to operate the driving rod multiple times. A butterfly valve with a ventilation structure is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a butterfly valve with a ventilation structure, including a valve body, a plurality of hanging ears fixedly connected to the arc surface of the valve body, an adjusting device provided on the surface of the valve body, the adjusting device including an installation bin, the installation bin is fixedly connected to the arc surface of the valve body, the upper surface of the installation bin is connected to a placement bin, a driving rod is rotatably connected in the placement bin, the driving rod is slidably connected to the inner surface of the installation bin, a valve plate is installed at one end of the driving rod, one end of the driving rod is fixedly connected to a connecting plate, a sliding rod is slidably inserted in the connecting plate, a plurality of positioning holes are opened on the surface of the placement bin, and one end of the sliding rod is fixedly connected to an elliptical plate.

[0007] The effect achieved by the above components is: by setting the adjustment device, the effect of adjusting the valve plate at different angles is achieved, avoiding the situation where the staff needs to adjust the position of the valve plate, because the position of the valve plate can only be determined by the size of the water flow when opening the valve plate, resulting in the staff being unable to directly adjust the valve plate to the required opening angle and the staff having to operate the driving rod multiple times, thereby improving the convenience of the device.

[0008] Preferably, a spring is fixedly connected to one side of the elliptical plate close to the connecting plate, and the spring is fixedly connected to the one side of the connecting plate close to the elliptical plate.

[0009] The effect achieved by the above components is that when the elliptical plate is loosened, the elastic force of the spring drives the sliding rod to automatically insert into the positioning hole, thereby improving the speed of the device.

[0010] Preferably, both ends of the valve body are fixedly connected with sealing pads, and the size of the sliding rod is adapted to the size of the positioning hole.

[0011] The effects achieved by the above components are: avoiding water seepage in the gap between the valve body and the pipe connection, and improving the stability of the device.

[0012] Preferably, the arc surface of the valve body is provided with an auxiliary device, and the auxiliary device includes two round rods, both of which are fixedly connected to the arc surface of the valve body, one end of the round rod is fixedly connected to a support plate, a threaded rod is inserted into the inner thread of the support plate, and one end of the threaded rod is rotatably connected to a clamping plate, and one side of the clamping plate is a circular arc surface.

[0013] The effect achieved by the above components is: by setting up auxiliary devices, the valve body is facilitated to be installed, which avoids the situation where the staff need to hold the pipe and the valve body with one hand to keep them in fit due to the pipe and the valve body being fixedly connected through the hanging ears when installing the pipe, thereby improving the practicality of the device.

[0014] Preferably, a sliding rod is slidably inserted into the support plate, and one end of the sliding rod is fixedly connected to the clamping plate.

[0015] The effects achieved by the above components are: preventing the clamping plate from rotating as the threaded rod rotates, thereby improving the stability of the device.

[0016] Preferably, one end of the threaded rod away from the clamping plate is fixedly connected to a turning handle, and one side of the clamping plate away from the threaded rod is fixedly connected to a soft pad.

[0017] The effect achieved by the above components is to avoid the situation where the pipe is damaged due to the clamping plate being too tight when auxiliary clamping the installed pipe.

[0018] In summary, the beneficial effects of the present invention are as follows:

[0019] 1. In the utility model, by setting an adjustment device, the effect of adjusting the valve plate at different angles is achieved, which avoids the situation where the staff needs to adjust the position of the valve plate. Because the position of the valve plate can only be determined by the size of the water flow when opening the valve plate, the staff cannot directly adjust the valve plate to the required opening angle and the staff has to operate the driving rod multiple times, thereby improving the convenience of the device.

[0020] 2. In the utility model, by providing an auxiliary device, the valve body is facilitated to be installed, which avoids the situation where the staff need to hold the pipe and the valve body with one hand to keep them in contact because the pipe and the valve body are fixedly connected through the hanging ear, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic structural diagram of the regulating device in the present utility model;

[0023] Figure 3 For this utility model Figure 2 A magnified view of point A;

[0024] Figure 4 It is a structural diagram of the auxiliary device in the utility model.

[0025] Legend: 1. Valve body; 2. Hanging ear; 3. Valve plate; 4. Adjustment device; 41. Installation compartment; 42. Placement compartment; 43. Drive rod; 44. Connecting plate; 45. Sliding rod; 46. Elliptical plate; 47. Spring; 48. Sealing gasket; 49. Positioning hole; 5. Auxiliary device; 51. Round rod; 52. Support plate; 53. Threaded rod; 54. Clamping plate; 55. Sliding rod; 56. Cushion; 57. Turning handle. DETAILED DESCRIPTION

[0026] Reference Figure 1 As shown, the utility model provides a technical solution: a butterfly valve with a ventilation structure, comprising a valve body 1, a plurality of hanging ears 2 fixedly connected to the arc surface of the valve body 1, and an adjusting device 4 is provided on the surface of the valve body 1. By setting the adjusting device 4, the effect of adjusting the valve plate 3 at different angles is achieved, avoiding the need for staff to adjust the position of the valve plate 3. When opening the valve plate 3, the position of the valve plate 3 can only be determined by the size of the water flow, resulting in the staff being unable to directly adjust the valve plate 3 to the required opening angle, resulting in the staff operating the driving rod 43 multiple times, thereby improving the convenience of the device. The arc surface of the valve body 1 is provided with an auxiliary device 5. By setting the auxiliary device 5, the effect of facilitating the installation of the valve body 1 is achieved, avoiding the need for staff to hold the pipe with one hand to keep it in fit with the valve body 1 when installing the pipe because the pipe and the valve body 1 are fixedly connected through the hanging ear 2, thereby improving the practicality of the device.

[0027] The specific settings and functions of the regulating device 4 and the auxiliary device 5 will be described in detail below.

[0028] Reference Figure 2 and Figure 3 As shown, in this embodiment: the regulating device 4 includes a mounting chamber 41, the mounting chamber 41 is fixedly connected to the arc surface of the valve body 1, the upper surface of the mounting chamber 41 is connected to the placement chamber 42, the placement chamber 42 is rotatably connected with a driving rod 43, the driving rod 43 is slidably connected to the inner surface of the mounting chamber 41, one end of the driving rod 43 is mounted with a valve plate 3, one end of the driving rod 43 is fixedly connected to a connecting plate 44, a sliding rod 45 is slidably inserted in the connecting plate 44, a plurality of positioning holes 49 are provided on the surface of the placement chamber 42, one end of the sliding rod 45 is fixedly connected to an elliptical plate 46, the elliptical plate 46 is fixedly connected to a spring 47 on one side of the connecting plate 44, the spring 47 is fixedly connected to the side of the connecting plate 44 close to the elliptical plate 46, and the valve plate 3 is pulled. The elliptical plate 46 drives the sliding rod 45 to slide on the inner surface of the positioning hole 49 until the sliding rod 45 disengages from the inner surface of the positioning hole 49. At this time, the spring 47 is in a stretched state, and the rotating connecting plate 44 drives the driving rod 43 to rotate in the placement chamber 42. The driving rod 43 drives the valve plate 3 to rotate, and the elliptical plate 46 is released. The elastic force of the spring 47 drives the sliding rod 45 to automatically insert into the positioning hole 49, which improves the speed of the device. Both ends of the valve body 1 are fixedly connected with a sealing gasket 48. The size of the sliding rod 45 is adapted to the size of the positioning hole 49. When the two ends of the valve body 1 are connected to the pipeline, the pipeline is in direct contact with the sealing gasket 48, which avoids water seepage in the gap between the valve body 1 and the pipeline connection, thereby improving the stability of the device.

[0029] Reference Figure 4As shown, specifically, the auxiliary device 5 includes two round rods 51, both of which are fixedly connected to the arc surface of the valve body 1, one end of the round rod 51 is fixedly connected to a support plate 52, a threaded rod 53 is inserted into the inner thread of the support plate 52, and one end of the threaded rod 53 is rotatably connected to a clamping plate 54, one side of the clamping plate 54 is an arc surface, a sliding rod 55 is slidably inserted into the support plate 52, one end of the sliding rod 55 is fixedly connected to the clamping plate 54, the threaded rod 53 is rotated to rotate in the support plate 52, the support plate 52 drives the clamping plate 54 to rotate, and the clamping plate 54 drives the sliding rod 55 slides in the support plate 52, avoiding the situation that the clamping plate 54 rotates with the rotation of the threaded rod 53, thereby improving the stability of the device. The end of the threaded rod 53 away from the clamping plate 54 is fixedly connected with a turning handle 57, and the side of the clamping plate 54 away from the threaded rod 53 is fixedly connected with a soft pad 56. Turning the turning handle 57 drives the threaded rod 53 to rotate in the support plate 52, the support plate 52 drives the clamping plate 54 to move, and the clamping plate 54 drives the soft pad 56 to move, thereby avoiding the situation that the clamping plate 54 is too tight when auxiliary clamping the installed pipeline, thereby damaging the pipeline.

[0030] Working principle: when the staff needs to open the valve plate 3, they pull the elliptical plate 46 to drive the sliding rod 45 to slide on the inner surface of the positioning hole 49 until the sliding rod 45 disengages from the inner surface of the positioning hole 49. At this time, the spring 47 is in a stretched state, and the rotating connecting plate 44 drives the driving rod 43 to rotate in the placement chamber 42. The driving rod 43 drives the valve plate 3 to rotate, loosens the elliptical plate 46, and the elastic force of the spring 47 drives the sliding rod 45 to automatically insert into the positioning hole 49, which improves the convenience of the device. When the two ends of the valve body 1 are connected to the pipeline, the pipeline is in direct contact with the sealing gasket 48, avoiding water seepage in the gap between the valve body 1 and the pipeline connection, and eliminating the need for the staff to adjust the position of the valve plate 3. When opening the valve plate 3, the position of the valve plate 3 can only be determined by the size of the water flow, resulting in the staff being unable to directly adjust the valve plate 3 to the required opening angle, resulting in the staff operating the driving rod 43 multiple times, thereby improving the convenience of the device.

[0031] When the staff needs to install the valve body 1 on the surface of the pipe, by rotating the threaded rod 53 in the support plate 52, the support plate 52 drives the clamping plate 54 to rotate, the threaded rod 53 drives the clamping plate 54 to move, and the clamping plate 54 drives the cushion 56 to move until the cushion 56 is in contact with the surface of the pipe, and the clamping plate 54 drives the sliding rod 55 in the support plate 52 to slide, thereby preventing the clamping plate 54 from rotating with the rotation of the threaded rod 53. Turning the handle 57 drives the threaded rod 53 to rotate in the support plate 52, the support plate 52 drives the clamping plate 54 to move, and the clamping plate 54 drives the cushion 56 to move, thereby preventing the clamping plate 54 from being too tight when assisting in clamping the installation pipe and causing damage to the pipe. This avoids the staff from installing the pipe and the valve body 1 because the pipe and the valve body 1 are fixedly connected by the hanging ear 2, resulting in the staff needing to hold the pipe with one hand to keep it in contact with the valve body 1 during installation, thereby improving the practicality of the device.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A butterfly valve with a ventilation structure, comprising a valve body (1), characterized in that: The arc surface of the valve body (1) is fixedly connected with a plurality of hanging ears (2), and the surface of the valve body (1) is provided with an adjusting device (4), and the adjusting device (4) includes a mounting chamber (41), the mounting chamber (41) is fixedly connected with the arc surface of the valve body (1), the upper surface of the mounting chamber (41) is connected with a placement chamber (42), a driving rod (43) is rotatably connected in the placement chamber (42), and the driving rod (43) is slidably connected with the inner surface of the mounting chamber (41), a valve plate (3) is installed at one end of the driving rod (43), and one end of the driving rod (43) is fixedly connected with a connecting plate (44), and a sliding rod (45) is slidably inserted in the connecting plate (44), and a plurality of positioning holes (49) are opened on the surface of the placement chamber (42), and one end of the sliding rod (45) is fixedly connected with an elliptical plate (46).

2. The butterfly valve with ventilation structure according to claim 1, characterized in that: A spring (47) is fixedly connected to one side of the elliptical plate (46) close to the connecting plate (44), and the spring (47) is fixedly connected to one side of the connecting plate (44) close to the elliptical plate (46).

3. The butterfly valve with ventilation structure according to claim 1, characterized in that: Both ends of the valve body (1) are fixedly connected with sealing pads (48), and the size of the sliding rod (45) is adapted to the size of the positioning hole (49).

4. The butterfly valve with ventilation structure according to claim 1, characterized in that: The arc surface of the valve body (1) is provided with an auxiliary device (5), and the auxiliary device (5) includes two round rods (51), and the two round rods (51) are fixedly connected to the arc surface of the valve body (1), one end of the round rod (51) is fixedly connected to a support plate (52), and a threaded rod (53) is inserted into the internal thread of the support plate (52), and one end of the threaded rod (53) is rotatably connected to a clamping plate (54), and one side of the clamping plate (54) is an arc surface.

5. The butterfly valve with ventilation structure according to claim 4, characterized in that: A sliding rod (55) is slidably inserted into the support plate (52), and one end of the sliding rod (55) is fixedly connected to the clamping plate (54).

6. The butterfly valve with ventilation structure according to claim 5, characterized in that: One end of the threaded rod (53) away from the clamping plate (54) is fixedly connected to a turning handle (57), and one side of the clamping plate (54) away from the threaded rod (53) is fixedly connected to a soft pad (56).

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