Eccentric butterfly valve convenient to overhaul

Abstract

The utility model relates to the field of butterfly valve devices, and discloses an eccentric butterfly valve convenient to overhaul, which comprises an adjusting device and a fixing device, the fixing device is arranged at the bottom end of the adjusting device, the adjusting device comprises a fixing plate, the top end of the fixing plate is rotatably connected with a mounting block, and a pointer is fixedly connected to the lower position of the side wall of the mounting block. The bottom end of the other end of the connecting rod is fixedly connected with a fixing block, the inner side wall of the fixing block is slidably connected with a limiting rod, the side wall of the limiting rod is sleeved with a spring, the side wall of the limiting rod is fixedly connected with a limiting plate, the other end of the limiting rod is fixedly connected with a handle, and two fixing holes are formed in the side wall of the fixing plate. According to the eccentric butterfly valve convenient to overhaul, the overall stability of the device is effectively improved by arranging the adjusting device, meanwhile, the device is connected with a pipeline by utilizing the fixing device and arranging the mounting pipe, and the leakproofness is improved.

Description

Technical Field

[0001] The utility model relates to the field of butterfly valve devices, in particular to an eccentric butterfly valve convenient for maintenance. Background Technique

[0002] The eccentric butterfly valve is also called a high-performance butterfly valve, which is mainly applicable to the drainage of systems such as water plants, power plants, steel plant smelting, chemical industry, water source projects, and environmental facility construction. It is especially applicable to water pipelines and is used as a regulating and intercepting device. Compared with the centerline butterfly valve, the eccentric butterfly valve is more resistant to high pressure, has a longer service life, and better stability. Compared with other valves, the larger the diameter, the lighter the material and the lower the cost. The double eccentric butterfly valve is further improved on the basis of the single eccentric butterfly valve, and its structural feature is that the axis of the valve stem deviates from both the center of the butterfly plate and the center of the body.

[0003] Although the prior art blocks the medium in the pipeline through the butterfly valve, the problem is that the state of the valve flap cannot be well observed when controlling the opening and closing of the valve flap, which may easily cause damage to the pipeline and has certain potential safety hazards. Therefore, those skilled in the art provide an eccentric butterfly valve convenient for maintenance to solve the problems raised in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose an eccentric butterfly valve convenient for maintenance, which provides an eccentric butterfly valve convenient for maintenance that effectively improves the overall stability of the device by setting an adjusting device, and at the same time uses a fixing device to connect the device to the pipeline through setting an installation pipe to improve the tightness.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An eccentric butterfly valve convenient for maintenance, including an adjusting device and a fixing device, the fixing device is arranged at the bottom end of the adjusting device, the adjusting device includes a fixing plate, the top end of the fixing plate is rotatably connected with an installation block, a pointer is fixedly connected to the position of the side wall of the installation block near the lower part, a connecting rod is fixedly connected to the middle part of the side wall of the installation block, the other end of the connecting rod is fixedly connected to a fixing block at the bottom end, a limiting rod is slidably connected to the inner side wall of the fixing block, a spring is sleeved on the side wall of the limiting rod, a limiting plate is fixedly connected to the side wall of the limiting rod, a handle is fixedly connected to the other end of the limiting rod, and two fixing holes are opened on the side wall of the fixing plate;

[0006] Through the above technical solution, by setting the adjusting device, two fixing holes are arranged on the side wall of the fixing plate. Pull the handle, pull out the limiting rod from the fixing hole, and rotate the handle by 90 degrees. Under the action of the spring, the limiting rod resets and enters the fixing hole, effectively fixing the position of the valve flap and preventing the valve flap from loosening under the impact of the medium, effectively improving the overall stability of the device.

[0007] Further, the fixing device includes a valve body, and mounting pipes are fixedly connected to both ends of the valve body. A rotating shaft is rotatably connected to the middle of the inner side wall of the valve body, and a valve flap is fixedly connected to the side wall of the rotating shaft. The bottom end of the fixing plate is fixedly connected to the top end of the valve body;

[0008] Through the above technical solution, by providing the fixing device, mounting pipes are provided on both sides of the valve body. By using the mounting pipes, the whole device can be connected to the pipeline, effectively improving the tightness of the device during use.

[0009] Further, one end of the spring is fixedly connected to the inner side wall of the fixing block, and the other end of the spring is fixedly connected to one side of the limiting plate;

[0010] Through the above technical solution, the opening and closing state of the valve flap is effectively controlled.

[0011] Further, the limiting rod is slidably connected to the inner side walls of the two fixing holes;

[0012] Through the above technical solution, the position of the limiting rod is effectively fixed.

[0013] Further, the top end of the rotating shaft penetrates through the top end of the inner side wall of the valve body and the bottom end of the fixing plate and is fixedly connected to the inside of the mounting block;

[0014] Through the above technical solution, the valve flap is effectively driven to rotate.

[0015] Further, the two fixing holes are perpendicular to each other;

[0016] Through the above technical solution, the stability of the valve flap is effectively improved.

[0017] Further, internal threads are provided on the inner side walls of the two mounting pipes;

[0018] Through the above technical solution, the valve body is effectively installed.

[0019] Further, a scale line is fixedly connected to the top end of the fixing plate;

[0020] Through the above technical solution, the opening and closing state of the valve flap can be effectively observed.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by providing the adjusting device, two fixing holes are provided on the side wall of the fixing plate. The handle is pulled, the limiting rod is pulled out from the fixing hole, and the handle is rotated by 90 degrees. Under the action of the spring, the limiting rod resets and enters the fixing hole, effectively fixing the position of the valve flap and preventing the valve flap from loosening under the impact of the medium, effectively improving the overall stability of the device.

[0023] 2. In the present utility model, by providing a fixing device, mounting pipes are respectively arranged on both sides of the valve body. By using the mounting pipes, the whole device can be connected to the pipeline, effectively improving the tightness of the device during use.

[0024] 3. In the present utility model, by providing scale lines at the top of the fixing plate, the real-time state of the valve flap in the valve body can be directly observed by using the pointer, and the flow rate of the medium can be effectively adjusted, greatly improving the overall practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional view of an eccentric butterfly valve convenient for maintenance proposed by the present utility model;

[0026] Figure 2 is another perspective three-dimensional view of an eccentric butterfly valve convenient for maintenance proposed by the present utility model;

[0027] Figure 3 is a front view of an eccentric butterfly valve convenient for maintenance proposed by the present utility model;

[0028] Figure 4 is a side view of an eccentric butterfly valve convenient for maintenance proposed by the present utility model.

[0029] LEGEND DESCRIPTION:

[0030] 1. Adjusting device; 101. Pointer; 102. Mounting block; 103. Connecting rod; 104. Fixed block; 105. Handle; 106. Fixing plate; 107. Limiting plate; 108. Fixing hole; 109. Spring; 1010. Limiting rod; 2. Fixing device; 201. Mounting pipe; 202. Valve body; 203. Rotating shaft; 204. Valve flap. SPECIFIC EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Refer to Figures 1-4, an embodiment provided by the present utility model: an eccentric butterfly valve convenient for maintenance, including an adjusting device 1 and a fixing device 2. The fixing device 2 is arranged at the bottom end of the adjusting device 1. The adjusting device 1 includes a fixing plate 106. A mounting block 102 is rotatably connected to the top end of the fixing plate 106. A pointer 101 is fixedly connected to a position on the lower side of the side wall of the mounting block 102. A connecting rod 103 is fixedly connected to the middle of the side wall of the mounting block 102. The bottom end of the other end of the connecting rod 103 is fixedly connected to a fixing block 104. A limiting rod 1010 is slidably connected to the inner side wall of the fixing block 104. A spring 109 is sleeved on the side wall of the limiting rod 1010. A limiting plate 107 is fixedly connected to the side wall of the limiting rod 1010. A handle 105 is fixedly connected to the other end of the limiting rod 1010. Two fixing holes 108 are formed in the side wall of the fixing plate 106. By setting the adjusting device 1, two fixing holes 108 are arranged on the side wall of the fixing plate 106. Pull the handle 105 to draw out the limiting rod 1010 from the fixing hole 108 and rotate the handle 105 by 90 degrees. Under the action of the spring 109, the limiting rod 1010 resets and enters the fixing hole 108, effectively fixing the position of the valve flap 204 and preventing the valve flap 204 from loosening under the impact of the medium, effectively improving the overall stability of the device.

[0033] The fixing device 2 includes a valve body 202. Installation pipes 201 are respectively fixedly connected to both ends of the valve body 202. A rotating shaft 203 is rotatably connected to the middle of the inner side wall of the valve body 202. A valve flap 204 is fixedly connected to the side wall of the rotating shaft 203. The bottom end of the fixing plate 106 is fixedly connected to the top end of the valve body 202. By setting the fixing device 2, installation pipes 201 are arranged on both sides of the valve body 202. By using the installation pipes 201, the whole device can be connected to the pipeline, effectively improving the airtightness of the device during use.

[0034] One end of the spring 109 is fixedly connected to the inner side wall of the fixing block 104, and the other end of the spring 109 is fixedly connected to one side of the limiting plate 107. The limiting rod 1010 is slidably connected to the inner side walls of the two fixing holes 108. The top end of the rotating shaft 203 penetrates through the top end of the inner side wall of the valve body 202 and the bottom end of the fixing plate 106 and is fixedly connected to the inside of the mounting block 102. The two fixing holes 108 are perpendicular to each other. Internal threads are arranged on the inner side walls of the two installation pipes 201. A scale line is fixedly connected to the top end of the fixing plate 106. By arranging a scale line at the top end of the fixing plate 106, the real-time state of the valve flap 204 in the valve body 202 can be intuitively observed by using the pointer 101, and the flow rate of the medium can be effectively adjusted, greatly improving the overall practicality of the device.

[0035] Working principle: By setting the adjusting device 1, two fixing holes 108 are provided on the side wall of the fixing plate 106. Pull the handle 105 to extract the limiting rod 1010 from the fixing hole 108, and rotate the handle 105 by 90 degrees. Under the action of the spring 109, the limiting rod 1010 resets and enters the fixing hole 108, effectively fixing the position of the valve flap 204 and preventing the valve flap 204 from loosening under the impact of the medium, effectively improving the overall stability of the device. By setting the fixing device 2, installation pipes 201 are respectively provided on both sides of the valve body 202. Using the installation pipes 201, the whole device can be connected to the pipeline, effectively improving the tightness of the device during use. By providing scale lines at the top of the fixing plate 106, the real-time state of the valve flap 204 in the valve body 202 can be visually observed by using the pointer 101, and the flow rate of the medium can be effectively adjusted, greatly improving the overall practicability of the device.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An eccentric butterfly valve convenient for maintenance, comprising an adjusting device (1) and a fixing device (2), wherein the fixing device (2) is arranged at the bottom end of the adjusting device (1), and is characterized in that: The regulating device (1) comprises a fixing plate (106), the top end of the fixing plate (106) is rotatably connected to a mounting block (102), a pointer (101) is fixedly connected to a lower position of a side wall of the mounting block (102), a connecting rod (103) is fixedly connected to the middle of the side wall of the mounting block (102), the other end of the connecting rod (103) is fixedly connected to a fixing block (104), the inner side wall of the fixing block (104) is slidably connected to a limiting rod (1010), a spring (109) is sleeved on the side wall of the limiting rod (1010), the side wall of the limiting rod (1010) is fixedly connected to a limiting plate (107), the other end of the limiting rod (1010) is fixedly connected to a handle (105), and the side wall of the fixing plate (106) is provided with two fixing holes (108).

2. The eccentric butterfly valve convenient for maintenance according to claim 1 is characterized in that: The fixing device (2) comprises a valve body (202), both ends of the valve body (202) are fixedly connected to mounting tubes (201), a rotating shaft (203) is rotatably connected to the middle of the inner wall of the valve body (202), a valve flap (204) is fixedly connected to the side wall of the rotating shaft (203), and the bottom end of the fixing plate (106) is fixedly connected to the top end of the valve body (202).

3. The eccentric butterfly valve convenient for maintenance according to claim 1 is characterized in that: One end of the spring (109) is fixedly connected to the inner wall of the fixed block (104), and the other end of the spring (109) is fixedly connected to one side of the limiting plate (107).

4. The eccentric butterfly valve convenient for maintenance according to claim 1 is characterized in that: The limiting rod (1010) is slidably connected to the inner side walls of the two fixing holes (108).

5. The eccentric butterfly valve convenient for maintenance according to claim 2 is characterized in that: The top end of the rotating shaft (203) passes through the top end of the inner wall of the valve body (202) and the bottom end of the fixing plate (106) and is fixedly connected to the inside of the mounting block (102).

6. The eccentric butterfly valve convenient for maintenance according to claim 1, characterized in that: The two fixing holes (108) are perpendicular to each other.

7. The eccentric butterfly valve convenient for maintenance according to claim 2, characterized in that: The inner side walls of the two mounting tubes (201) are both provided with internal threads.

8. The eccentric butterfly valve convenient for maintenance according to claim 1, characterized in that: A scale line is fixedly connected to the top of the fixed plate (106).

Images