Three-way butterfly valve

Abstract

The utility model relates to the field of valves, and discloses a three-way butterfly valve which comprises a valve body, a handle is arranged on the upper surface of the valve body, a rotating rod is fixedly connected to the lower surface of the handle, a valve clack is fixedly connected to the outer wall of the rotating rod, a filtering assembly is arranged in the valve body, a buffering assembly is arranged in the valve body, and the valve clack is fixedly connected to the outer wall of the rotating rod. The filter assembly comprises a ring sleeve, a filter plate is fixedly connected to the inner wall of the valve body, a baffle is slidably connected to the inner wall of the valve body, a conical hole is formed in the right surface of the baffle, the filter assembly further comprises a first through groove, a second through groove is formed in the upper surface of the ring sleeve, and a limiting groove is formed in the lower surface of the valve body. According to the three-way butterfly valve, impurities and particulate matter in fluid can be blocked through cooperation of the filtering assembly, the impurities and the particulate matter can be discharged subsequently, scouring of the impurities to the valve clack is effectively reduced, long-term good operation of the valve clack is guaranteed, and the service life of the three-way butterfly valve is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of valves, in particular to a three-way butterfly valve. Background Art

[0002] In modern industrial and civil fields, fluid control is a vital link. As an important control component, three-way butterfly valve is widely used in pipeline systems to regulate the flow direction and flow of fluid.

[0003] Many fluid media often contain various impurities and particles. These impurities and particles will continuously flush the valve disc with the flow of water. This continuous flushing action will gradually wear the surface of the valve disc, making its surface rough, thereby affecting the sealing cooperation between the valve disc and the valve body, reducing the sealing effect and shortening the service life of the three-way butterfly valve.

[0004] At the same time, under some working conditions, the water flow in the pipeline is fast, which will form a large impact force. After the fast-flowing water impacts the valve disc for a long time, it may cause the valve disc to deform. The deformation of the valve disc will destroy the originally designed sealing structure, making it unable to fit tightly with the valve body, thus seriously affecting the sealing effect. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a three-way butterfly valve, which aims to improve the problem in the prior art that the valve disc is roughened due to long-term erosion of impurities and particulate matter in the fluid medium, affecting the sealing fit between the valve disc and the valve body, reducing the sealing effect and shortening the service life.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a three-way butterfly valve, including a valve body, a handle is provided on the upper surface of the valve body, a rotating rod is fixedly connected to the lower surface of the handle, a valve disc is fixedly connected to the outer wall of the rotating rod, a filter assembly is provided inside the valve body, a buffer assembly is provided inside the valve body, the filter assembly includes a ring sleeve, a filter plate is fixedly connected to the inner wall of the valve body, a baffle is slidably connected to the inner wall of the valve body, and a tapered hole is opened on the right surface of the baffle.

[0007] As a further description of the above technical solution:

[0008] The filter assembly also includes a through groove 1, a through groove 2 is provided on the upper surface of the ring sleeve, a limiting groove is provided on the lower surface of the valve body, the inner wall of the ring sleeve is elastically connected to a slider via a compression spring, and a pull rod is passed through and fixedly connected to the upper surface of the slider.

[0009] As a further description of the above technical solution:

[0010] The buffer assembly comprises a fixing plate, a right surface of which is fixedly connected with a hollow tube, an inner wall of the hollow tube is elastically connected with a rubber pad via a connecting spring, and a right surface of the rubber pad is fixedly connected with a sliding rod.

[0011] As a further description of the above technical solution:

[0012] The rotating rod penetrates and is rotatably connected to the upper surface of the valve body, the ring sleeve is rotatably connected to the outer wall of the valve body, the filter plate is arranged in an inclined state, a filter hole is opened on the right surface of the filter plate, and the conical hole is arranged in a conical shape.

[0013] As a further description of the above technical solution:

[0014] The through groove one is opened on the lower surface of the valve body, and the through groove one is located directly below the filter plate. The limiting grooves are provided in two groups, and the two groups of limiting grooves are arranged in a circular array with the center of the baffle plate as the origin.

[0015] As a further description of the above technical solution:

[0016] The top end of the pull rod is set to be a protrusion shape, the pull rod passes through and is slidably connected to the upper surface of the ring sleeve, the pull rod is inserted into the inner wall of the limiting groove, one end of the compression spring is fixedly connected to the upper surface of the slider, the other end of the compression spring is fixedly connected to the inner wall of the top end of the ring sleeve, and the slider is slidably connected to the inner wall of the ring sleeve.

[0017] As a further description of the above technical solution:

[0018] The lower surface of the fixed plate is fixedly connected to the inner wall of the bottom end of the valve body, the right surface of the sliding rod is fixedly connected to the left surface of the baffle, and the sliding rod penetrates and is slidably connected to the right surface of the hollow tube.

[0019] As a further description of the above technical solution:

[0020] One end of the connecting spring is fixedly connected to the left surface of the rubber pad, the other end of the connecting spring is fixedly connected to the inner wall of the left side of the hollow tube, and the rubber pad piston is connected to the inner wall of the hollow tube.

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

[0022] 1. In the utility model, the impurities and particles in the fluid can be blocked by the cooperation of the filter assembly. The impurities and particles will accumulate between the filter plate and the baffle. Subsequently, by controlling the rotation of the ring sleeve, the accumulated impurities and particles can be discharged from the second through groove, reducing the erosion of the valve disc by impurities, ensuring the long-term good operation of the valve disc, and extending the service life of the three-way butterfly valve.

[0023] 2. In the utility model, through the cooperation of the buffer component and the baffle, the water flow will be blocked when passing through the baffle. Although the water flow can pass through, the flow rate will be slowed down, reducing the direct impact on the valve disc, effectively protecting the valve disc from damage, enhancing the stability and durability of the valve disc, and improving the overall performance of the three-way butterfly valve. In addition, the buffer component can slow down the impact of the water flow on the baffle, and the baffle is not easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic front view of the three-dimensional structure of the overall device in the utility model;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure section of the valve body in the utility model;

[0026] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the valve body, the ring sleeve and the baffle in the utility model;

[0027] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the hollow core tube of the utility model.

[0028] Legend:

[0029] 1. Valve body; 2. Handle; 3. Turn rod; 4. Valve disc; 51. Ring sleeve; 52. Filter plate; 53. Baffle; 54. Pull rod; 55. Compression spring; 56. Slider; 501. Through slot 1; 502. Through slot 2; 503. Conical hole; 504. Limiting slot; 61. Fixing plate; 62. Hollow tube; 63. Connecting spring; 64. Rubber pad; 65. Slider. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1 - Figure 3The utility model provides an embodiment: a three-way butterfly valve, including a valve body 1, the right side of the valve body 1 is a water inlet, the front side and the left side of the valve body 1 are water outlets, the upper surface of the valve body 1 is provided with a handle 2, the lower surface of the handle 2 is fixedly connected with a rotating rod 3, the outer wall of the rotating rod 3 is fixedly connected with a valve disc 4, the handle 2 can change the direction of the rotating rod 3 and the valve disc 4, and can control whether the water flow is blocked or can flow smoothly. The valve body 1, the handle 2, the rotating rod 3 and the valve disc 4 together constitute the main body of the three-way butterfly valve, the valve body 1 is provided with a filter assembly inside, which is located on the pipe at the water inlet and can block impurities in the water. A buffer assembly is provided inside the valve body 1, which can slow down the speed of the water flow and reduce the impact of the water flow. The filter assembly includes a ring sleeve 51, a filter plate 52 is fixedly connected to the inner wall of the valve body 1, and a baffle 53 is slidably connected to the inner wall of the valve body 1. The baffle 53 slides in the left and right directions, and a tapered hole 503 is opened on the right surface of the baffle 53, and impurities and water flow can pass through the tapered hole 503.

[0032] Reference Figure 1 , Figure 3 The filter assembly also includes a through groove 1 501, a through groove 2 502 is provided on the upper surface of the ring sleeve 51, the through groove 1 501 and the through groove 2 502 are of the same shape and size, a limiting groove 504 is provided on the lower surface of the valve body 1, the inner wall of the ring sleeve 51 is elastically connected to a slider 56 through a compression spring 55, and a pull rod 54 is passed through and fixedly connected to the upper surface of the slider 56, and pulling the pull rod 54 can drive the slider 56 to move synchronously.

[0033] Reference Figure 1 , Figure 3 , Figure 4 The buffer assembly includes a fixed plate 61, and the fixed plate 61 is provided with four groups, which are arranged in a circular array with the center of the baffle 53. The right surface of the fixed plate 61 is fixedly connected with a hollow tube 62, and the inner wall of the hollow tube 62 is elastically connected with a rubber pad 64 through a connecting spring 63, and the right surface of the rubber pad 64 is fixedly connected with a sliding rod 65.

[0034] Reference Figure 1 , Figure 3 The rotating rod 3 passes through and is rotatably connected to the upper surface of the valve body 1. The outer wall of the rotating rod 3 fits tightly against the valve body 1 to maintain sealing. The ring sleeve 51 is rotatably connected to the outer wall of the valve body 1. The inner wall of the ring sleeve 51 is made of rubber and fits against the outer wall of the valve body 1 to ensure sealing. The filter plate 52 is arranged in an inclined shape. The right surface of the filter plate 52 is provided with filter holes. The filter holes have a small aperture and can block impurities while allowing water to pass through. The conical hole 503 is arranged in a conical shape. The right side opening of the conical hole 503 is large, which is convenient for impurities and water to pass through. The left side opening of the conical hole 503 is small, which will block impurities. In addition, the water flows from right to left, so impurities will not flow back.

[0035] Reference Figure 1, Figure 3 The through groove 1 501 is provided on the lower surface of the valve body 1 , and the through groove 2 502 will be aligned with the through groove 1 501 after rotating 180 degrees, and the blocked impurities will be discharged from the through groove 2 502 . The through groove 1 501 is located directly below the filter plate 52 , and two groups of limiting grooves 504 are provided, and the two groups of limiting grooves 504 are arranged in a circular array with the center of the baffle 53 as the origin.

[0036] Reference Figure 1 , Figure 3 The top of the pull rod 54 is set to be in a convex shape, and the outer wall of the convex part is provided with anti-slip grooves for easy gripping. The pull rod 54 passes through and is slidably connected to the upper surface of the ring sleeve 51, sliding longitudinally. The pull rod 54 is inserted into the inner wall of the limiting groove 504, which can limit the ring sleeve 51. After the pull rod 54 rotates 180 degrees with the ring sleeve 51, it will be aligned with another limiting groove 504. One end of the compression spring 55 is fixedly connected to the upper surface of the slider 56, and the other end of the compression spring 55 is fixedly connected to the inner wall of the top of the ring sleeve 51. When the slider 56 moves upward, it will squeeze the compression spring 55 to generate a reaction force, and the slider 56 is slidably connected to the inner wall of the ring sleeve 51.

[0037] Reference Figure 1 , Figure 3 , Figure 4 The lower surface of the fixed plate 61 is fixedly connected to the inner wall of the bottom end of the valve body 1, and the right surface of the sliding rod 65 is fixedly connected to the left surface of the baffle 53. When the baffle 53 is impacted by the water flow, it will move to the left and drive the sliding rod 65 to move synchronously. The sliding rod 65 penetrates and is slidably connected to the right surface of the hollow tube 62.

[0038] Reference Figure 1 , Figure 3 , Figure 4 One end of the connecting spring 63 is fixedly connected to the left surface of the rubber pad 64, and the other end of the connecting spring 63 is fixedly connected to the inner wall of the left side of the hollow tube 62. The rubber pad 64 piston is connected to the inner wall of the hollow tube 62. When the sliding rod 65 moves to the left, it will drive the rubber pad 64 to move to the left. The rubber pad 64 moving to the left will squeeze the connecting spring 63 to generate a reaction force, and will compress the air inside the hollow tube 62 to play a buffering role.

[0039] Working principle: When the device is in use, water flows into the water inlet on the right side of the valve body 1.

[0040] First, the water flow will pass through the filter assembly. When it contacts the baffle 53, the conical hole 503 on the baffle 53 has a large opening on the right side, so impurities and water flow will pass through. The opening on the left side is small. Impurities will not flow back due to the obstruction of the baffle 53 and the influence of the water flow direction. Further, impurities and water flow will flow to the filter plate 52. The water flow can pass through, and the impurities will be blocked by the filter holes. The impurities will remain between the baffle 53 and the filter plate 52.

[0041] And in the process of water flow, when the water flow hits the baffle 53, the baffle 53 will move to the left, driving the slide bar 65 to slide in the hollow tube 62. When the slide bar 65 moves to the left, it will drive the rubber pad 64 to move to the left. The rubber pad 64 moving to the left will squeeze the connecting spring 63 to generate a reaction force, and at the same time compress the air inside the hollow tube 62, thereby playing a buffering role, slowing down the water flow speed and reducing the impact of the water flow.

[0042] When it is necessary to clean the impurities, pull the pull rod 54 upward to drive the slider 56 to move upward. The upward moving slider 56 will squeeze the compression spring 55 to generate a reaction force, and the upward moving pull rod 54 will disengage from the limiting groove 504 to release the limitation on the ring sleeve 51, and then rotate the ring sleeve 51 180 degrees. At this time, the pull rod 54 will be aligned with another limiting groove 504, and the compression spring 55 will push the pull rod 54 and the limiting groove 504 to be plugged in, so as to limit the ring sleeve 51. At this time, the through groove 2 502 on the ring sleeve 51 will also be aligned with the through groove 1 501 on the lower surface of the valve body 1, and the blocked impurities will be discharged from the through groove 2 502. Then, the same method is used to rotate the ring sleeve 51 180 degrees to keep the through groove 2 502 away from the through groove 1 501 to ensure the sealing of the device.

[0043] In addition, when the device is in use, the handle 2 is manipulated to drive the rotating rod 3 and the valve flap 4 to rotate, thereby changing the switch of the water flow.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-way butterfly valve, comprising a valve body (1), characterized in that: The upper surface of the valve body (1) is provided with a handle (2), the lower surface of the handle (2) is fixedly connected to a rotating rod (3), the outer wall of the rotating rod (3) is fixedly connected to a valve flap (4), a filter assembly is provided inside the valve body (1), a buffer assembly is provided inside the valve body (1), the filter assembly comprises a ring sleeve (51), a filter plate (52) is fixedly connected to the inner wall of the valve body (1), a baffle (53) is slidably connected to the inner wall of the valve body (1), and a tapered hole (503) is provided on the right surface of the baffle (53).

2. The three-way butterfly valve according to claim 1, characterized in that: The filter assembly further comprises a through groove 1 (501), a through groove 2 (502) is provided on the upper surface of the ring sleeve (51), a limiting groove (504) is provided on the lower surface of the valve body (1), the inner wall of the ring sleeve (51) is elastically connected to a slider (56) via a compression spring (55), and a pull rod (54) is passed through and fixedly connected to the upper surface of the slider (56).

3. The three-way butterfly valve according to claim 1, characterized in that: The buffer assembly comprises a fixing plate (61), the right surface of the fixing plate (61) being fixedly connected to a hollow tube (62), the inner wall of the hollow tube (62) being elastically connected to a rubber pad (64) via a connecting spring (63), and the right surface of the rubber pad (64) being fixedly connected to a sliding rod (65).

4. The three-way butterfly valve according to claim 1, characterized in that: The rotating rod (3) penetrates through and is rotatably connected to the upper surface of the valve body (1); the ring sleeve (51) is rotatably connected to the outer wall of the valve body (1); the filter plate (52) is arranged in an inclined shape; a filter hole is provided on the right surface of the filter plate (52); and the conical hole (503) is arranged in a conical shape.

5. The three-way butterfly valve according to claim 2, characterized in that: The through groove one (501) is formed on the lower surface of the valve body (1), and the through groove one (501) is located directly below the filter plate (52). Two groups of the limiting grooves (504) are formed, and the two groups of the limiting grooves (504) are arranged in a circular array with the center of the baffle plate (53) as the origin.

6. The three-way butterfly valve according to claim 2, characterized in that: The top end of the pull rod (54) is arranged in a convex shape, the pull rod (54) passes through and is slidably connected to the upper surface of the ring sleeve (51), the pull rod (54) is inserted into the inner wall of the limiting groove (504), one end of the compression spring (55) is fixedly connected to the upper surface of the slider (56), the other end of the compression spring (55) is fixedly connected to the inner wall of the top end of the ring sleeve (51), and the slider (56) is slidably connected to the inner wall of the ring sleeve (51).

7. The three-way butterfly valve according to claim 3, characterized in that: The lower surface of the fixed plate (61) is fixedly connected to the inner wall of the bottom end of the valve body (1), the right surface of the sliding rod (65) is fixedly connected to the left surface of the baffle (53), and the sliding rod (65) passes through and is slidably connected to the right surface of the hollow tube (62).

8. The three-way butterfly valve according to claim 3, characterized in that: One end of the connecting spring (63) is fixedly connected to the left surface of the rubber pad (64), the other end of the connecting spring (63) is fixedly connected to the inner wall on the left side of the hollow tube (62), and the piston of the rubber pad (64) is connected to the inner wall of the hollow tube (62).

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