Rotary plate type wear-resistant air valve

Abstract

The utility model relates to the technical field of rotary plate type air valves, and discloses a rotary plate type wear-resistant air valve which comprises a fixed valve sleeve, air openings are formed in the middles of the left side and the right side of the fixed valve sleeve, limiting holes are formed in the middles of the left side and the right side of the fixed valve sleeve, a supporting plate is connected to the middle of the interior of the fixed valve sleeve, and a motor is connected to the front side of the fixed valve sleeve. The driving end of the motor is connected with a transmission shaft, the rear end of the exterior of the transmission shaft is connected with a worm, the inner wall of the limiting hole is rotationally connected with a rotating shaft, the left side of the exterior of the rotating shaft is connected with a semicircular worm gear, and the right side of the exterior of the rotating shaft is connected with a limiting ring. According to the air valve, the air volume of the valve is accurately controlled, the air valve can be rapidly opened and closed, injected lubricating oil can flow into the oil injection pipe through the oil injection port and then flow into the liquid flow pipe to lubricate the semicircular worm wheel and the rotating valve plate, and the operation efficiency of the air valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary plate air valves, in particular to a rotary plate wear-resistant air valve. Background Art

[0002] The rotary plate wear-resistant air valve is a kind of air valve commonly used in the industrial field, mainly used to regulate and control the flow of gas, dust or particulate matter. The simplest structure of the rotary plate air valve includes a single-piece rotary plate structure, a double-piece rotary plate structure, and a multi-piece rotary plate structure. Among them, the single-piece rotary plate structure is controlled by a single rotating plate (also called a rotating door plate) to control the flow of gas. The rotary plate can rotate around the axis. When the rotary plate is aligned with the valve seat, the fluid is allowed to pass through; when the rotary plate rotates to be misaligned, the fluid flow is blocked.

[0003] For some existing rotary plate air valves, it is usually necessary for the operator to go to the valve position in person to open and close the valve. Especially for large equipment or valves installed in inconvenient positions, this requires a lot of time and labor costs, resulting in the inability to ensure the precise position during the opening and closing process of the valve plate and the control of the air flow speed. Therefore, in view of the above problems, a rotary plate wear-resistant air valve is proposed to solve the above problems. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a rotary plate wear-resistant air valve, aiming to improve the problems of difficult manual operation, inability to precisely control the opening and closing of the valve, and control of the air flow speed of the valve in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A rotary plate wear-resistant air valve, including a fixed valve sleeve, characterized in that: air vents are arranged in the middle of the left and right sides of the fixed valve sleeve, limiting holes are arranged in the middle of the left and right sides of the fixed valve sleeve, a support plate is connected in the middle of the inside of the fixed valve sleeve, a motor is connected to the front side of the fixed valve sleeve, a transmission shaft is connected to the driving end of the motor, a worm is connected to the outer rear end of the transmission shaft, a rotating shaft is rotatably connected to the inner wall of the limiting hole, a semi-circular worm gear is connected to the left side of the outer part of the rotating shaft, a limiting ring is connected to the right side of the outer part of the rotating shaft, a rotating valve plate is connected to the middle of the outer part of the rotating shaft, an oil injection pipe is connected to the inner part of the right end of the rotating shaft, and a lubricating component is installed inside the oil injection pipe to lubricate the worm and the semi-circular worm gear;

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

[0008] The lubricating component includes a liquid flow pipe, an oil injection port, two telescopic rods, two springs and a plug. A liquid flow pipe is connected to the middle of the inside of the rotating shaft, and an oil injection port is connected to the middle of the right side of the oil injection pipe;

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

[0010] Two telescopic rods are connected to the right side inside the oil injection pipe. A spring is sleeved outside the telescopic rods. The left ends of the two telescopic rods are connected to a plug block;

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

[0012] The outer part of the rotating valve plate is slidably connected to the right side inner wall of the fixed valve sleeve, and the left side of the semi-circular worm gear is slidably connected to the left side inner wall of the fixed valve sleeve;

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

[0014] The outer part of the semi-circular worm gear is meshed with the outer part of the worm. The rear end of the worm is rotatably connected to the front side of the support plate;

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

[0016] One end of the spring is connected to the right side inner wall of the oil injection pipe, and the other end of the spring is connected to the upper and lower ends on the right side of the plug block;

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

[0018] The upper and lower outer sides of the liquid flow pipe are in contact with the outer part of the semi-circular worm gear, and the middle part on the right side of the plug block is in contact with the left side of the oil injection port;

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

[0020] A sealing ring is connected to the inner wall of the air outlet on the left side, and an air duct is connected to the left side of the fixed valve sleeve.

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

[0022] 1. In the utility model, by controlling the motor to start and driving the worm to rotate through the transmission shaft, the worm meshes with the semi-circular worm gear to rotate, and synchronously drives the rotating valve plate to slide on the inner wall of the fixed valve sleeve, and intersects with the air outlet of the fixed valve sleeve to accurately control the air volume of the valve, and can quickly open and close the air valve. The operation is simple and the operation is flexible.

[0023] 2. In the utility model, by connecting the external oil injection pipe to the oil injection pipe and inserting it into the oil injection port, the plug block in contact with the oil injection port is pushed to move. At this time, the plug block pulls the spring and the telescopic rod to expand and contract, so that the injected lubricating oil can flow into the oil injection pipe through the oil injection port and then into the liquid flow pipe to lubricate the semi-circular worm gear and the rotating valve plate, which helps to improve the operation efficiency of the air valve, reduce wear, and make the air valve more smooth and efficient during the opening and closing process. Brief Description of the Drawings

[0024] Figure 1 A three-dimensional schematic diagram of a rotary plate type wear-resistant air valve proposed by the present utility model;

[0025] Figure 2 A structural schematic diagram of a limiting hole of a rotary plate type wear-resistant air valve proposed by the present utility model;

[0026] Figure 3 A structural schematic diagram of a rotating valve plate of a rotary plate type wear-resistant air valve proposed by the present utility model;

[0027] Figure 4 A structural schematic diagram of a support plate of a rotary plate type wear-resistant air valve proposed by the present utility model;

[0028] Figure 5 A structural schematic diagram of a liquid flow pipe of a rotary plate type wear-resistant air valve proposed by the present utility model;

[0029] Figure 6 This Figure 5 is the enlarged view at position A in

[0030] Legend:

[0031] 1. Fixed valve sleeve; 2. Air outlet; 3. Limiting hole; 4. Support plate; 5. Motor; 6. Transmission shaft; 7. Worm; 8. Rotating shaft; 9. Semi-circular worm gear; 10. Limit ring; 11. Rotating valve plate; 12. Oil injection pipe; 13. Liquid flow pipe; 14. Oil injection port; 15. Telescopic rod; 16. Spring; 17. Plug; 18. Sealing ring; 19. Air duct. Detailed Embodiment

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the 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 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.

[0033] Referring to Figures 1-3 , an embodiment provided by the present utility model: A rotary plate type wear-resistant air valve includes a fixed valve sleeve 1. Semi-circular openings are provided in the middle of the left and right sides of the fixed valve sleeve 1. The air outlets 2 are semi-circular openings. Limiting holes 3 are provided in the middle of the left and right sides of the fixed valve sleeve 1. The limiting holes 3 are located in the exact middle position of the fixed valve sleeve 1. A support plate 4 is connected to the middle inside of the fixed valve sleeve 1. The support plate 4 is fixed at the middle inside position of the fixed valve sleeve 1. A motor 5 is connected to the front side of the fixed valve sleeve 1. The driving end of the motor 5 is connected to a transmission shaft 6. A worm 7 is connected to the outer rear end of the transmission shaft 6. When the motor 5 is started, the worm 7 is driven to rotate through the transmission shaft 6.

[0034] The inner wall of the limiting hole 3 is rotatably connected to a rotating shaft 8, and the rotating shaft 8 is limited to rotate in the limiting hole 3 of the fixed valve sleeve 1 by a limiting ring 10. The outer left side of the rotating shaft 8 is connected to a semicircular worm gear 9, and the outer right side of the rotating shaft 8 is connected to a limiting ring 10. The outer middle part of the rotating shaft 8 is connected to a rotating valve plate 11. The semicircular worm gear 9 and the rotating valve plate 11 are both connected to the outside of the rotating shaft 8, so the semicircular worm gear 9 and the rotating valve plate 11 rotate synchronously.

[0035] refer to Figure 3 、 Figure 4 , the outer side of the rotating valve plate 11 is slidingly connected to the right side of the inner wall of the fixed valve sleeve 1, and the rotating valve plate 11 fits tightly against the right side of the inner wall of the fixed valve sleeve 1 and rotates. The left side of the semicircular worm gear 9 is slidingly connected to the left side of the inner wall of the fixed valve sleeve 1, and the outer side of the semicircular worm gear 9 is meshed with the outer side of the worm 7. After being driven by the worm 7, the semicircular worm gear 9 will fit against the left side of the inner wall of the fixed valve sleeve 1 and rotate. The rear end of the drive shaft 6 is rotatably connected to the front side of the support plate 4. The support plate 4 supports the drive shaft 6 to drive the worm 7 to rotate smoothly. The inner wall of the left air outlet 2 is connected with a sealing ring 18, which is embedded in the inner wall of the right air outlet 2 and fits the rotating valve plate 11. The left side of the fixed valve sleeve 1 is connected with an air duct 19. The air duct 19 is used to conduct the direction of the air flow and to better fix the air valve.

[0036] refer to Figure 5 ,and Figure 6 The right end of the rotating shaft 8 is connected to an oil filling pipe 12, and the interior of the oil filling pipe 12 is installed with a lubricating component to lubricate the worm 7 and the semicircular worm gear 9. The lubricating component includes a liquid flow pipe 13, an oil filling port 14, two telescopic rods 15, two springs 16 and a block 17. The middle of the rotating shaft 8 is connected to a liquid flow pipe 13, and the upper and lower outer sides of the liquid flow pipe 13 are in contact with the outer side of the semicircular worm gear 9. The lubricating oil injected into the oil filling pipe 12 will eventually flow into the liquid flow pipe 13, and then flow from the liquid flow pipe 13 into the outer tooth gap of the semicircular worm gear 9.

[0037] The middle right side of the oil filling pipe 12 is connected to an oil filling port 14. The oil filling port 14 narrows the oil port of the oil filling pipe 12, allowing an external oil pipe to be inserted for filling, effectively preventing lubricating oil leakage. Two telescopic rods 15 are connected to the right side of the interior of the oil filling pipe 12. A spring 16 is provided on the outside of the telescopic rod 15. The left ends of the two telescopic rods 15 are connected to a block 17. One end of the spring 16 is connected to the right side of the inner wall of the oil filling pipe 12, and the other end of the spring 16 is connected to the upper and lower ends of the right side of the block 17. The middle right side of the block 17 contacts the left side of the oil filling port 14. The external oil pipe is connected to the oil filling pipe 12 and inserted into the oil filling port 14. The block 17 in contact with the oil filling port 14 is pressed and moved, so that the block 17 pulls the spring 16 and the telescopic rod 15 to extend and retract. At this time, the opening of the oil filling port 14 is opened.

[0038] During use, the motor 5 is controlled to start, driving the worm 7 to rotate through the transmission shaft 6. Since the worm 7 meshes with the semi-circular worm gear 9, and the semi-circular worm gear 9 is connected to the rotary valve plate 11 through the rotating shaft 8, and both the semi-circular worm gear 9 and the rotary valve plate 11 are connected to the rotating shaft 8, when the semi-circular worm gear 9 is driven by the rotating worm 7 to rotate synchronously, the rotary valve plate 11 will also slide on the inner wall of the fixed valve sleeve 1. The operator can open and close the valve by staggering the air outlet 2 of the rotary valve plate 11 and the fixed valve sleeve 1 during rotation, and the air volume output from the air outlet 2 of the fixed valve sleeve 1 can be automatically controlled by the precise meshing between the worm 7 and the semi-circular worm gear 9.

[0039] When the noise generated by the meshing friction between the worm 7 and the semi-circular worm gear 9 causes excessive noise in the valve, the operator can connect an external oil pipe to the oil injection pipe 12 provided inside the rotating shaft 8, insert it into the oil injection port 14, and push against the plug 17 in contact with the oil injection port 14 to move it. As a result, the plug 17 pulls the spring 16 and the telescopic rod 15 to expand and contract. At this time, the opening of the oil injection port 14 is opened, and the lubricating oil injected by the operator can flow into the oil injection pipe 12 through the oil injection port 14, then into the liquid flow pipe 13, and finally flow into the tooth gaps of the rotating shaft 8 through the liquid flow pipe 13. In this way, when the rotating shaft 8 rotates and meshes with the worm 7, the semi-circular worm gear 9 will transmit the lubricating oil in the tooth gaps to the outside of the worm 7, lubricating the semi-circular worm gear 9 and the worm 7 to reduce frictional noise, helping to improve the operating efficiency of the air valve, reducing wear, and enabling the air valve to be more smooth and efficient during the opening and closing process.

[0040] 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 described 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. A rotary plate type wear-resistant air valve, comprising a fixed valve sleeve (1), characterized in that: On the middle parts of the left and right sides of the fixed valve sleeve (1), air inlets (2) are provided. On the middle of the left and right sides of the fixed valve sleeve (1), limiting holes (3) are provided. In the middle of the interior of the fixed valve sleeve (1), a support plate (4) is connected. At the front side of the fixed valve sleeve (1), a motor (5) is connected. The driving end of the motor (5) is connected with a transmission shaft (6). At the outer rear end of the transmission shaft (6), a worm (7) is connected. The inner wall of the limiting hole (3) is rotationally connected with a rotating shaft (8). On the outer left side of the rotating shaft (8), a semi-circular worm gear (9) is connected. On the outer right side of the rotating shaft (8), a limiting ring (10) is connected. In the middle of the outer part of the rotating shaft (8), a rotating valve plate (11) is connected. Inside the right end of the rotating shaft (8), an oil injection pipe (12) is connected. Inside the oil injection pipe (12), a lubricating component is installed to lubricate the worm (7) and the semi-circular worm gear (9).

2. The rotary plate type wear-resistant air valve according to claim 1, characterized in that: The lubricating component includes a liquid flow pipe (13), an oil injection port (14), two telescopic rods (15), two springs (16) and a blocking block (17). In the middle of the interior of the rotating shaft (8), a liquid flow pipe (13) is connected. In the middle of the right side of the oil injection pipe (12), an oil injection port (14) is connected.

3. The rotary plate type wear-resistant air valve according to claim 2, wherein: On the right side inside the oil injection pipe (12), two telescopic rods (15) are connected. The outer part of the telescopic rod (15) is sleeved with a spring (16). The left ends of the two telescopic rods (15) are connected with a blocking block (17).

4. The rotary vane type wear-resistant air valve according to claim 1, characterized in that: The outer part of the rotating valve plate (11) is slidably connected to the right inner wall of the fixed valve sleeve (1). The left side of the semi-circular worm gear (9) is slidably connected to the left inner wall of the fixed valve sleeve (1).

5. The rotary plate type wear-resistant air valve according to claim 1, characterized in that: The outer part of the semi-circular worm gear (9) is meshed with the outer part of the worm (7). The rear end of the worm (7) is rotationally connected to the front side of the support plate (4).

6. The rotary vane type wear-resistant air valve according to claim 2, characterized in that: One end of the spring (16) is connected to the right inner wall of the oil injection pipe (12). The other end of the spring (16) is connected to the upper and lower ends on the right side of the blocking block (17).

7. The rotary plate type wear-resistant air valve according to claim 2, wherein: The upper and lower outer sides of the liquid flow pipe (13) are in contact with the outer part of the semi-circular worm gear (9). The middle part on the right side of the blocking block (17) is in contact with the left side of the oil injection port (14).

8. The rotary plate type wear-resistant air valve according to claim 1, characterized in that: On the inner wall of the left air inlet (2), a sealing ring (18) is connected. On the left side of the fixed valve sleeve (1), an air duct (19) is connected.

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