Novel fast and slow pumping angle valve

Abstract

The novel angle valve comprises a valve body, an air outlet is formed in the upper end of the valve body, a sealing pressing plate is fixedly installed in the valve body, the inner wall of the sealing pressing plate is movably connected with a valve plate connecting rod, and a combined valve plate is fixedly arranged at the end of the valve plate connecting rod. Meanwhile, a rubber sealing ring is installed on the side of the combined valve plate, the side surface, away from the rubber sealing ring, of the combined valve plate is connected with a sealing pressing plate through a corrugated pipe, and a slow-pumping driving air cylinder piston and a quick-pumping driving air cylinder piston are installed on the outer wall of the end, away from the combined valve plate, of a valve plate connecting rod in parallel; and stabilizing mechanisms are respectively fixed on the outer wall of the valve body on two sides of the air outlet. According to the novel fast and slow pumping angle valve, a nested valve plate structure is not used, so that the structure of the valve body is relatively simple.

Description

Technical Field

[0001] The utility model relates to the technical field of fast and slow pumping angle valves, in particular to a novel fast and slow pumping angle valve. Background Art

[0002] Fast and slow angle valves are often used in vacuum pumping systems as a shut-off valve. When the vacuum chamber pressure is in a large pressure range, in order to avoid excessive pumping speed causing the gas to flow too fast, thereby causing problems in the vacuum chamber, such as dust and blowing parts, the fast and slow angle valve can be opened with a small opening. When the pressure is less than a certain value, the airflow will not have a negative impact. At this time, in order to improve the pumping efficiency and save time, the fast and slow angle valve can be opened with a large opening.

[0003] However, the existing fast and slow pumping angle valve has the following problems when used:

[0004] Due to the complex structure of the valve body, the technical difficulty of valve body production is great, which increases the production cost of the valve body. Therefore, in order to improve the economic benefits of the valve body, it is necessary to optimize the structure of the valve body. The existing fast and slow withdrawal angle valves usually adopt a structure in which a large valve plate is nested in a small valve plate, which leads to a complex valve body structure and increases the production cost of the valve body.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original fast and slow pumping angle valve. Utility Model Content

[0006] The utility model aims to provide a novel fast and slow pumping angle valve to solve the problem that the existing fast and slow pumping angle valves proposed in the background art adopt a structure in which a large valve plate is nested in a small valve plate, thereby making the valve body structure complicated.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of fast and slow withdrawal angle valve, comprising a valve body, an air outlet is opened at the upper end of the valve body, and a sealing pressure plate is fixedly installed inside the valve body, and the inner wall of the sealing pressure plate is movably connected with a valve plate connecting rod, and a combined valve plate is fixedly installed on the end of the valve plate connecting rod, and a rubber sealing ring is installed on the side of the combined valve plate, and the side surface of the combined valve plate away from the rubber sealing ring is connected to the sealing pressure plate through a bellows, and a slow-drawing driving cylinder piston and a fast-drawing driving cylinder piston are installed in parallel on the outer wall of the end of the valve plate connecting rod away from the combined valve plate, and stabilizing mechanisms are respectively fixed to the outer walls of the valve body on both sides of the air outlet.

[0008] Preferably, the sealing pressure plate, the slow-pull drive cylinder piston and the fast-pull drive cylinder piston are all slidably connected to the valve plate connecting rod, and the slow-pull drive cylinder piston and the fast-pull drive cylinder piston both form a sliding structure with the valve body.

[0009] Preferably, the combined valve plate and the rubber sealing ring are respectively fitted with the valve body.

[0010] Preferably, a compression spring is arranged inside the bellows, and two ends of the compression spring are fixedly connected to the sealing pressure plate and the combined valve plate respectively.

[0011] Preferably, a slow-pumping driving compressed air inlet is provided on the surface of the valve body above the slow-pumping driving cylinder piston, and the slow-pumping driving compressed air inlet is communicated with the valve body.

[0012] Preferably, a quick-draw drive compressed air inlet is provided on the surface of the valve body above the quick-draw drive cylinder piston, and the quick-draw drive compressed air inlet is communicated with the valve body.

[0013] Preferably, the stabilizing mechanism includes a stabilizing frame, a knob, a splint and a cushion, and the stabilizing frame is fixedly mounted on the outer wall of the valve body, and the upper inner wall of the stabilizing frame is movably connected with the knob, and the end of the knob is movably provided with a splint, and the side outer wall of the splint is bonded with a cushion.

[0014] Preferably, the knob is threadedly connected to the stabilizing frame, and the knob is rotatably connected to the clamping plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the valve body is installed on the equipment, and then the valve body and the exhaust pipe are connected. Next, the user rotates the knob, and then the knob moves relative to the stabilizing frame, and then the knob drives the splint to move, and then the splint drives the cushion to fit tightly against the exhaust pipe, and the remaining stabilizing mechanisms are operated in a similar manner, thereby improving the connection stability between the device and the exhaust pipe installed thereon, making the device stable in use and avoiding the phenomenon of relative deviation between the device and the exhaust pipe when the device is working. Then, when the device performs slow pumping, compressed air enters the valve body from the slow pumping driven compressed air inlet, and then the compressed air drives the slow pumping driven cylinder piston, and then the slow pumping driven cylinder piston pulls the valve plate connecting rod relative to The sliding of the sealing pressure plate causes the combined valve plate to open. At this time, the combined valve plate drives the rubber sealing ring to separate from the valve body. At the same time, the combined valve plate squeezes the compression spring to deform, and the bellows deforms as the combined valve plate moves. Since the slow-pumping driving cylinder piston is restricted by the valve body, the combined valve plate opens a small opening, and then the gas enters the exhaust pipe through the valve body and the air outlet, thereby completing the exhaust and realizing slow pumping. When the device performs fast pumping, compressed air enters the valve body from the fast-pumping driving compressed air inlet, and then the compressed air drives the fast-pumping driving cylinder piston. Subsequently, the fast-pumping driving cylinder piston pulls the combined valve plate to fully open, thereby realizing fast pumping. Therefore, the device avoids using a nested valve plate structure, making the valve body structure relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front section structure of the utility model;

[0017] Figure 2This is a schematic diagram of the front cross-section structure of the valve body of the utility model;

[0018] Figure 3 This is a schematic diagram of the front section structure of the quick-draw drive cylinder piston of the utility model;

[0019] Figure 4 It is a schematic diagram of the top-sectional structure of the stabilizing mechanism of the utility model.

[0020] In the figure: 1. valve body; 2. air outlet; 3. sealing pressure plate; 4. valve plate connecting rod; 5. combined valve plate; 6. rubber sealing ring; 7. compression spring; 8. bellows; 9. slow-pump drive cylinder piston; 10. fast-pump drive cylinder piston; 11. slow-pump drive compressed air inlet; 12. fast-pump drive compressed air inlet; 13. stabilizing mechanism; 1301. stabilizing frame; 1302. knob; 1303. splint; 1304. cushion. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 The utility model provides a technical solution: a new type of fast and slow pumping angle valve, including a valve body 1, an air outlet 2, a sealing pressure plate 3, a valve plate connecting rod 4, a combined valve plate 5, a rubber sealing ring 6, a compression spring 7, a bellows 8, a slow pumping drive cylinder piston 9, a fast pumping drive cylinder piston 10, a slow pumping drive compressed air inlet 11, a fast pumping drive compressed air inlet 12, a stabilizing mechanism 13, a stabilizing frame 1301, a knob 1302, a clamping plate 1303 and a cushion 1304, and an air outlet 2 is opened at the upper end of the valve body 1. , and a sealing pressure plate 3 is fixedly arranged inside the valve body 1, and a valve plate connecting rod 4 is movably installed on the inner wall of the sealing pressure plate 3, and a combined valve plate 5 is fixedly arranged at the end of the valve plate connecting rod 4, and a rubber sealing ring 6 is installed on the side of the combined valve plate 5, the sealing pressure plate 3, the slow-pull drive cylinder piston 9 and the fast-pull drive cylinder piston 10 are all slidably arranged with the valve plate connecting rod 4, and the slow-pull drive cylinder piston 9 and the fast-pull drive cylinder piston 10 both form a sliding structure with the valve body 1, which is convenient for the valve plate connecting rod 4 to move inside the valve body 1.

[0023] The side surface of the combined valve plate 5 away from the rubber sealing ring 6 is connected to the sealing pressure plate 3 through the bellows 8, and the outer wall of the end of the valve plate connecting rod 4 away from the combined valve plate 5 is parallelly installed with a slow-drawing driving cylinder piston 9 and a fast-drawing driving cylinder piston 10. The combined valve plate 5 and the rubber sealing ring 6 are respectively fitted and connected with the valve body 1, so that the combined valve plate 5 and the rubber sealing ring 6 can fit the valve body 1 at the same time, thereby completing the sealing of the valve body 1. A compression spring 7 is arranged inside the bellows 8, and the two ends of the compression spring 7 are respectively fixedly connected to the sealing pressure plate 3 and the combined valve plate 5, so that the combined valve plate 5 can be elastically supported by the compression spring 7, so that the combined valve plate 5 fits the valve body 1 without external force, and the slow-drawing driving cylinder piston 10 can be easily pushed and pulled. A slow-pumping driven compressed air inlet 11 is provided on the surface of the valve body 1 above the plug 9, and the slow-pumping driven compressed air inlet 11 is communicated with the valve body 1, so that gas can be injected through the slow-pumping driven compressed air inlet 11, so that the slow-pumping driven cylinder piston 9 moves, thereby driving the valve plate connecting rod 4, so that the combined valve plate 5 opens with a small opening; a fast-pumping driven compressed air inlet 12 is provided on the surface of the valve body 1 above the fast-pumping driven cylinder piston 10, and the fast-pumping driven compressed air inlet 12 is communicated with the valve body 1, so that gas can be injected through the fast-pumping driven compressed air inlet 12, so that the fast-pumping driven cylinder piston 10 moves, thereby driving the valve plate connecting rod 4, so that the combined valve plate 5 opens with a large opening, such as Figure 1-3 As shown, when the device performs slow pumping, compressed air enters the valve body 1 from the slow pumping driving compressed air inlet 11, and then the compressed air drives the slow pumping driving cylinder piston 9. Next, the slow pumping driving cylinder piston 9 pulls the valve plate connecting rod 4 to slide relative to the sealing pressure plate 3 to open the combined valve plate 5. At this time, the combined valve plate 5 drives the rubber sealing ring 6 to separate from the valve body 1, and at the same time, the combined valve plate 5 squeezes the compression spring 7 to deform, and the bellows 8 deforms as the combined valve plate 5 moves. Since the slow pumping driving cylinder piston 9 is restricted by the valve body 1, the combined valve plate 5 opens a small opening, and then the gas enters the exhaust pipe through the valve body 1 and the air outlet 2, thereby completing the exhaust and realizing slow pumping. When the device performs fast pumping, compressed air enters the valve body 1 from the fast pumping driving compressed air inlet 12, and then the compressed air drives the fast pumping driving cylinder piston 10. Subsequently, the fast pumping driving cylinder piston 10 pulls the combined valve plate 5 to fully open, thereby realizing fast pumping. Therefore, the device avoids using a nested valve plate structure, making the valve body structure relatively simple.

[0024] The outer wall of the valve body 1 on both sides of the air outlet 2 is respectively fixed with a stabilizing mechanism 13, which includes a stabilizing frame 1301, a knob 1302, a clamping plate 1303 and a cushion 1304, and the stabilizing frame 1301 is fixedly connected to the outer wall of the valve body 1, and the knob 1302 is movably installed on the inner wall of the upper end of the stabilizing frame 1301, and the end of the knob 1302 is movably connected to the clamping plate 1303, and the side outer wall of the clamping plate 1303 is fixedly connected to the cushion 1304, so as to facilitate the stabilizing mechanism 1301 to be stable. The fixing mechanism 13 improves the stability of the connection between the device and the exhaust pipe, so that the device can be used stably. The knob 1302 and the stabilizing frame 1301 are threadedly arranged, and the knob 1302 and the clamping plate 1303 are rotatably connected, so that the user can rotate the knob 1302 to move the knob 1302 relative to the stabilizing frame 1301, thereby driving the clamping plate 1303 to move, so that the clamping plate 1303 drives the cushion 1304 to fit the exhaust pipe connected to the device, thereby improving the stability of the connection between the device and the exhaust pipe. Figure 1 and Figure 4 As shown, the valve body 1 is installed on the device, and then the valve body 1 and the exhaust pipe are connected. Next, the user rotates the knob 1302, and then the knob 1302 moves relative to the stabilizing frame 1301, and then the knob 1302 drives the clamp 1303 to move, and then the clamp 1303 drives the cushion 1304 to fit tightly against the exhaust pipe. Similarly, the remaining stabilizing mechanisms 13 are operated, thereby improving the connection stability between the device and the exhaust pipe installed thereon, making the device stable to use and avoiding the relative offset between the device and the exhaust pipe when the device is working.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A novel fast and slow pumping angle valve, comprising a valve body (1), characterized in that: The upper end of the valve body (1) is provided with an air outlet (2), and a sealing pressure plate (3) is fixedly installed inside the valve body (1), and the inner wall of the sealing pressure plate (3) is movably connected to a valve plate connecting rod (4), and a combined valve plate (5) is fixedly installed at the end of the valve plate connecting rod (4), and a rubber sealing ring (6) is installed on the side of the combined valve plate (5), and the side surface of the combined valve plate (5) away from the rubber sealing ring (6) is connected to the sealing pressure plate (3) through a bellows (8), and the outer wall of the end of the valve plate connecting rod (4) away from the combined valve plate (5) is parallelly installed with a slow-drawing drive cylinder piston (9) and a fast-drawing drive cylinder piston (10), and the outer walls of the valve body (1) on both sides of the air outlet (2) are respectively fixed with stabilizing mechanisms (13).

2. According to claim 1, a novel fast and slow pumping angle valve is characterized in that: The sealing pressure plate (3), the slow-pull drive cylinder piston (9) and the fast-pull drive cylinder piston (10) are all slidably connected to the valve plate connecting rod (4), and the slow-pull drive cylinder piston (9) and the fast-pull drive cylinder piston (10) form a sliding structure with the valve body (1).

3. According to claim 1, a novel fast and slow pumping angle valve is characterized in that: The combined valve plate (5) and the rubber sealing ring (6) are respectively fitted to the valve body (1).

4. A novel fast and slow pumping angle valve according to claim 1, characterized in that: A compression spring (7) is arranged inside the bellows (8), and two ends of the compression spring (7) are respectively fixedly connected to the sealing pressure plate (3) and the combined valve plate (5).

5. According to claim 1, a novel fast and slow pumping angle valve is characterized in that: A slow-pumping driving compressed air inlet (11) is provided on the surface of the valve body (1) above the slow-pumping driving cylinder piston (9), and the slow-pumping driving compressed air inlet (11) is communicated with the valve body (1).

6. According to claim 1, a novel fast and slow pumping angle valve is characterized in that: A quick-draw drive compressed air inlet (12) is provided on the surface of the valve body (1) above the quick-draw drive cylinder piston (10), and the quick-draw drive compressed air inlet (12) is in communication with the valve body (1).

7. A novel fast and slow pumping angle valve according to claim 1, characterized in that: The stabilizing mechanism (13) comprises a stabilizing frame (1301), a knob (1302), a clamping plate (1303) and a cushion (1304), wherein the stabilizing frame (1301) is fixedly mounted on the outer wall of the valve body (1), and the knob (1302) is movably connected to the inner wall of the upper end of the stabilizing frame (1301), and the clamping plate (1303) is movably provided at the end of the knob (1302), and the cushion (1304) is bonded to the side outer wall of the clamping plate (1303).

8. According to claim 7, a novel fast and slow pumping angle valve is characterized in that: The knob (1302) and the stabilizing frame (1301) are threadedly connected, and the knob (1302) and the clamping plate (1303) are rotatably connected.

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