Vacuumizing device

Abstract

The utility model provides a vacuumizing device, which belongs to the technical field of vacuumizing devices and comprises a vacuum extraction pipe and a motor, the motor is fixedly mounted on the left side of the upper surface of the vacuum extraction pipe, a turntable is mounted at the output end of the motor, a piston cylinder is fixedly mounted in the vacuum extraction pipe, and a piston is in airtight connection with the inner side of the piston cylinder. A piston rod is fixedly mounted in the center of the left surface of the piston; the motor drives the rotating disc to rotate, the rotating disc drives the piston to move left and right along the piston cylinder through the connecting rod, when the piston moves leftwards along the piston cylinder, the piston exhausts air in the piston cylinder through the one-way exhaust valve, and when the piston moves rightwards, the interior of the piston cylinder is in a vacuum state. The air pressure in the vacuum device needing air extraction is larger than that in the piston cylinder, air enters the piston cylinder from the one-way air extraction valve, the process is repeated, the vacuum extraction effect is achieved, and the device is simple in internal structure and convenient to maintain or repair.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pumping devices, and in particular to a vacuum pumping device. Background Technology

[0002] A vacuuming device is a device that removes air from inside a package to achieve a predetermined vacuum level.

[0003] Existing vacuum pumping devices typically use vacuum pumps to create a vacuum. These pumps rely on mechanical force (such as rotation or reciprocating motion) to generate suction, thereby extracting gas from the container or space and reducing pressure. Mechanical pumps are widely used in scientific research, medical applications, and industrial production.

[0004] While vacuum pumps are simple to operate, their internal structure is complex and prone to wear during manufacturing. Once worn, they cannot achieve vacuum extraction. Furthermore, vacuum pumps are typically manufactured using injection molding, which makes maintenance or repair inconvenient, often leading to their scrapping and increased costs. Therefore, a vacuum extraction device is designed to solve these problems. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the above-mentioned background technology by proposing a vacuum pumping device.

[0006] The technical problem to be solved by this utility model is to provide a vacuum pumping device, which solves the problem that the vacuum pumping devices in the prior art usually use a vacuum pump to extract a vacuum. The vacuum pump has a complex internal structure and is prone to wear, which makes maintenance or repair inconvenient.

[0007] This utility model provides a vacuum pumping device, including a vacuum extraction tube and a motor. The motor is fixedly installed on the left side of the upper surface of the vacuum extraction tube, and a turntable is installed at the output end of the motor. A piston cylinder is fixedly installed inside the vacuum extraction tube, and a piston is airtightly connected to the inner side of the piston cylinder. A piston rod is fixedly installed at the center of the left side surface of the piston, and the piston rod passes through the center of the left side surface of the piston cylinder. An inverted concave frame is welded to the left end of the piston rod, and a connecting rod is rotatably mounted on the inverted concave frame via a pin. The left end of the connecting rod is rotatably connected to the bottom of the turntable away from the center via a pin. A one-way suction valve is installed through the piston, and a one-way exhaust valve is installed through the upper left side surface of the piston cylinder, and the one-way exhaust valve passes through the upper surface of the vacuum extraction tube.

[0008] Preferably, the piston rod and piston cylinder are connected in an airtight manner at the penetration point, and the piston cylinder is sealed at the left end and open at the right end.

[0009] Preferably, when the pin on the turntable rotates to a side away from the piston cylinder, the left side surface of the piston is in close contact with the inner left end of the piston cylinder.

[0010] Preferably, the one-way suction valve includes a suction pipe, a first fixing ring, a first mounting rod, a first guide rod, a first sealing disc, and a first spring. The suction pipe passes through the top of the piston. The first fixing ring is fixedly installed at the right end of the suction pipe. The first mounting rod is fixedly installed at the left end of the suction pipe. The first guide rod passes through the first mounting rod. The first sealing disc is fixedly installed at the right end of the first guide rod. The first spring is fixedly installed between the first sealing disc and the first mounting rod.

[0011] Preferably, the first spring is in its naturally extended state, and at this time, the right side surface of the first sealing disc is in close contact with the right side surface of the first fixing ring.

[0012] Preferably, the diameter of the first sealing disc is larger than the diameter of the central through hole of the first fixing ring, and the first sealing disc completely seals the central through hole of the first fixing ring.

[0013] Preferably, the one-way exhaust valve includes an L-shaped exhaust pipe, a second fixing ring, a second mounting rod, a second guide rod, a second sealing disc, and a second spring. The right end of the L-shaped exhaust pipe passes through the upper left end of the piston cylinder, and the upper part of the L-shaped exhaust pipe passes through the upper surface of the vacuum extraction pipe. A second fixing ring is fixedly installed on the lower inner side of the L-shaped exhaust pipe, and a second mounting rod is fixedly installed on the upper inner side of the L-shaped exhaust pipe. A second guide rod passes through the center of the upper surface of the second mounting rod, and a second sealing disc is fixedly installed at the bottom of the second guide rod. A second spring is fixedly installed between the second sealing disc and the second mounting rod.

[0014] Preferably, the second spring is in its naturally extended state, and at this time the second sealing disc is in close contact with the upper surface of the second fixing ring.

[0015] Preferably, the diameter of the second sealing disc is larger than the diameter of the central through hole of the second fixing ring, and the second sealing disc completely seals the central through hole of the second fixing ring.

[0016] Preferably, the right end of the vacuum extraction tube is integrally formed with an external threaded connecting tube, and the outer diameter of the external threaded connecting tube is smaller than the outer diameter of the vacuum extraction tube, and a sealing rubber ring is sleeved on the external threaded connecting tube.

[0017] Compared with the prior art, this utility model has at least the following beneficial effects:

[0018] 1. This utility model, by setting up a motor, piston cylinder, and piston, connects the right end of the vacuum extraction tube to the device requiring vacuum extraction during the vacuuming process. The motor is turned on, driving a turntable to rotate. The turntable, via a connecting rod, drives the piston to move left and right along the piston cylinder. When the piston moves to the left, it discharges air from the piston cylinder through a one-way exhaust valve. When the piston moves to the right, the piston cylinder is in a vacuum state. The air pressure inside the vacuum extraction device needs to be greater than the air pressure inside the piston cylinder, allowing gas to enter the piston cylinder through the one-way exhaust valve. This process is repeated to achieve the vacuum extraction effect. The device has a simple internal structure, making maintenance and repair convenient.

[0019] 2. This utility model features a one-way exhaust valve. When the piston moves to the right along the piston cylinder, the left side of the piston cylinder is in a vacuum state. The air pressure inside the vacuum extraction device is greater than the air pressure inside the piston cylinder. Under the action of the air pressure inside the vacuum extraction device, the first sealing disc is pushed to separate from the first fixed ring, and gas enters the piston cylinder until the air pressure inside the piston cylinder is the same as the air pressure inside the vacuum extraction device. As the piston moves to the left, it compresses the gas inside the piston cylinder, increasing the air pressure inside the piston cylinder. This pressure pushes the first sealing disc to press tightly against the first fixed ring, sealing the first fixed ring and ensuring that the gas inside the piston cylinder is discharged through the one-way exhaust valve, thus achieving the effect of vacuum extraction.

[0020] 3. This utility model is equipped with a one-way exhaust valve. When the piston moves to the left, the piston compresses the gas in the piston cylinder, which increases the gas pressure in the piston cylinder. The gas pressure pushes the second sealing disc to separate from the second fixed ring, and the gas is discharged from the piston cylinder through the L-shaped exhaust pipe, thus achieving the exhaust effect. When the piston moves to the right, the external gas pressure makes the second sealing disc stick tightly to the second fixed ring, which blocks the L-shaped exhaust pipe, thus achieving the one-way exhaust effect.

[0021] 4. This utility model, by incorporating an externally threaded connecting pipe and a sealing rubber ring, allows the vacuum extraction pipe to be installed on the device requiring vacuum extraction. The externally threaded connecting pipe is threaded onto the device, and the sealing rubber ring seals the connection, ensuring the vacuum extraction pipe remains airtight, preventing leakage, and guaranteeing a sealing effect. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model. Figure 1 .

[0025] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model. Figure 2 .

[0026] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A.

[0027] Figure 5 This utility model Figure 2 Enlarged structural diagram at point B.

[0028] [Figure Labels]

[0029] 1. Vacuum extraction tube; 101. External threaded connecting tube; 102. Sealing rubber ring; 2. Motor; 201. Turntable; 3. Piston cylinder; 4. Piston; 5. Piston rod; 501. Inverted concave bracket; 6. Connecting rod; 7. Vacuum extraction tube; 701. First fixing ring; 702. First mounting rod; 703. First guide rod; 704. First sealing disc; 705. First spring; 8. L-shaped exhaust pipe; 801. Second fixing ring; 802. Second mounting rod; 803. Second guide rod; 804. Second sealing disc; 805. Second spring. Detailed Implementation Example

[0030] like Figures 1-5 As shown, an embodiment of this utility model provides a vacuum pumping device, including a vacuum extraction tube 1 and a motor 2. The motor 2 is fixedly installed on the left side of the upper surface of the vacuum extraction tube 1. A turntable 201 is installed at the output end of the motor 2. A piston cylinder 3 is fixedly installed inside the vacuum extraction tube 1. A piston 4 is airtightly connected to the inner side of the piston cylinder 3. A piston rod 5 is fixedly installed in the center of the left side surface of the piston 4, and the piston rod 5 passes through the center of the left side surface of the piston cylinder 3. An inverted concave frame 501 is welded to the left end of the piston rod 5. A connecting rod 6 is rotatably installed on the inverted concave frame 501 through a pin. The left end of the connecting rod 6 is rotatably connected to the bottom of the turntable 201 away from the center position through a pin. A one-way suction valve is installed through the piston 4. A one-way exhaust valve is installed through the upper left side surface of the piston cylinder 3, and the one-way exhaust valve passes through the upper surface of the vacuum extraction tube 1.

[0031] In this embodiment, the piston rod 5 and the piston cylinder 3 are connected in an airtight manner at the through-hole, and the piston cylinder 3 is sealed at the left end and open at the right end.

[0032] In this embodiment, when the pin on the turntable 201 rotates to a side away from the piston cylinder 3, the left side surface of the piston 4 is in close contact with the inner left end of the piston cylinder 3, which makes it convenient for the piston 4 to completely discharge the gas in the piston cylinder 3 through the one-way exhaust valve.

[0033] The device is equipped with a motor 2, a piston cylinder 3, and a piston 4. During the vacuuming process, the right end of the vacuum extraction tube 1 is connected to the device that needs to be vacuumed. The motor 2 is turned on, and the motor 2 drives the turntable 201 to rotate. The turntable 201 drives the piston 4 to move left and right along the piston cylinder 3 through the connecting rod 6. When the piston 4 moves to the left along the piston cylinder 3, the piston 4 discharges the air in the piston cylinder 3 through the one-way exhaust valve. When the piston moves to the right, the piston cylinder 3 is in a vacuum state. The air pressure inside the vacuuming device needs to be greater than the air pressure inside the piston cylinder 3. Gas enters the piston cylinder 3 through the one-way exhaust valve. This process is repeated to achieve the effect of vacuum extraction. The internal structure of the device is simple and easy to maintain or repair.

[0034] In this embodiment, the one-way suction valve includes a suction pipe 7, a first fixing ring 701, a first mounting rod 702, a first guide rod 703, a first sealing disc 704, and a first spring 705. The suction pipe 7 passes through the piston 4 above it. The first fixing ring 701 is fixedly installed at the right end of the suction pipe 7. The first mounting rod 702 is fixedly installed at the left end of the suction pipe 7. The first guide rod 703 passes through the first mounting rod 702. The first sealing disc 704 is fixedly installed at the right end of the first guide rod 703. The first spring 705 is fixedly installed between the first sealing disc 704 and the first mounting rod 702.

[0035] In this embodiment, the first spring 705 is in a naturally extended state, and at this time, the right side surface of the first sealing disc 704 is in close contact with the right side surface of the first fixing ring 701.

[0036] In this embodiment, the diameter of the first sealing disc 704 is larger than the diameter of the central through hole of the first fixing ring 701, and the first sealing disc 704 completely seals the central through hole of the first fixing ring 701.

[0037] With the one-way exhaust valve, when the piston 4 moves to the right along the piston cylinder 3, the left side of the piston cylinder 3 is in a vacuum state. The air pressure in the vacuum extraction device is greater than the air pressure in the piston cylinder 3. Under the action of the air pressure of the gas in the vacuum extraction device, the first sealing disc 704 will be pushed to separate from the first fixing ring 701, and the gas will enter the piston cylinder 3 until the air pressure in the piston cylinder 3 is the same as the air pressure in the vacuum extraction device. During the process of the piston 4 moving to the left, the gas in the piston cylinder 3 is squeezed, and the air pressure in the piston cylinder 3 increases. The air pressure will push the first sealing disc 704 to stick tightly to the first fixing ring 701, sealing the first fixing ring 701 and ensuring that the gas in the piston cylinder 3 is discharged from the one-way exhaust valve, thus achieving the effect of vacuum extraction.

[0038] In this embodiment, the one-way exhaust valve includes an L-shaped exhaust pipe 8, a second fixing ring 801, a second mounting rod 802, a second guide rod 803, a second sealing disc 804, and a second spring 805. The right end of the L-shaped exhaust pipe 8 passes through the upper left end of the piston cylinder 3, and the upper part of the L-shaped exhaust pipe 8 passes through the upper surface of the vacuum extraction pipe 1. The second fixing ring 801 is fixedly installed on the lower inner side of the L-shaped exhaust pipe 8, and the second mounting rod 802 is fixedly installed on the upper inner side of the L-shaped exhaust pipe 8. The second guide rod 803 passes through the center of the upper surface of the second mounting rod 802, and the second sealing disc 804 is fixedly installed at the bottom of the second guide rod 803. The second spring 805 is fixedly installed between the second sealing disc 804 and the second mounting rod 802.

[0039] In this embodiment, the second spring 805 is in a naturally extended state, and at this time the second sealing disc 804 is in close contact with the upper surface of the second fixing ring 801.

[0040] In this embodiment, the diameter of the second sealing disc 804 is larger than the diameter of the central through hole of the second fixing ring 801, and the second sealing disc 804 completely seals the central through hole of the second fixing ring 801.

[0041] With a one-way exhaust valve, as the piston 4 moves to the left, the piston 4 compresses the gas inside the piston cylinder 3, increasing the gas pressure inside the piston cylinder 3. The gas pressure pushes the second sealing disc 804 to separate from the second fixed ring 801, and the gas is discharged from the piston cylinder 3 through the L-shaped exhaust pipe 8, achieving the exhaust effect. As the piston 4 moves to the right, the external gas pressure causes the second sealing disc 804 to press tightly against the second fixed ring 801, thus blocking the L-shaped exhaust pipe 8 and achieving the one-way exhaust effect.

[0042] In this embodiment, the right end of the vacuum extraction tube 1 is integrally formed with an external threaded connecting tube 101, and the outer diameter of the external threaded connecting tube 101 is smaller than the outer diameter of the vacuum extraction tube 1. A sealing rubber ring 102 is sleeved on the external threaded connecting tube 101.

[0043] By providing an external threaded connecting pipe 101 and a sealing rubber ring 102, when the vacuum extraction pipe 1 is installed on the device that needs to extract vacuum, it is threaded onto the device through the external threaded connecting pipe 101, and the connection is sealed by the sealing rubber ring 102, so as to ensure the sealing performance of the vacuum extraction pipe 1 after connection, prevent air leakage, and ensure the sealing effect.

[0044] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A vacuum-pumping device, characterized by: The device includes a vacuum extraction tube (1) and a motor (2). The motor (2) is fixedly installed on the left side of the upper surface of the vacuum extraction tube (1). A turntable (201) is installed at the output end of the motor (2). A piston cylinder (3) is fixedly installed inside the vacuum extraction tube (1). A piston (4) is airtightly connected to the inner side of the piston cylinder (3). A piston rod (5) is fixedly installed in the center of the left side surface of the piston (4). The piston rod (5) passes through the center of the left side surface of the piston cylinder (3). An inverted concave frame (501) is welded to the left end of the piston rod (5). A connecting rod (6) is rotatably installed on the inverted concave frame (501) through a pin. The left end of the connecting rod (6) is rotatably connected to the bottom of the turntable (201) away from the center position through a pin. A one-way air extraction valve is installed through the piston (4). A one-way exhaust valve is installed through the upper side of the left side surface of the piston cylinder (3). The one-way exhaust valve passes through the upper surface of the vacuum extraction tube (1).

2. The evacuation device of claim 1, wherein: The piston rod (5) and piston cylinder (3) are connected in an airtight manner at the penetration point, and the piston cylinder (3) is sealed at the left end and open at the right end.

3. The evacuation device of claim 2, wherein: When the pin on the turntable (201) rotates to a side away from the piston cylinder (3), the left side surface of the piston (4) is in close contact with the inner left end of the piston cylinder (3).

4. The evacuation device of claim 3, wherein: The one-way suction valve includes a suction pipe (7), a first fixing ring (701), a first mounting rod (702), a first guide rod (703), a first sealing disc (704), and a first spring (705). The suction pipe (7) passes through the piston (4) above it. The first fixing ring (701) is fixedly installed at the right end of the suction pipe (7). The first mounting rod (702) is fixedly installed at the left end of the suction pipe (7). The first guide rod (703) passes through the first mounting rod (702). The first sealing disc (704) is fixedly installed at the right end of the first guide rod (703). The first spring (705) is fixedly installed between the first sealing disc (704) and the first mounting rod (702).

5. The evacuation device of claim 4, wherein: The first spring (705) is in a naturally extended state, and at this time the right side surface of the first sealing disc (704) is in close contact with the right side surface of the first fixing ring (701).

6. The evacuation device of claim 5, wherein: The diameter of the first sealing disc (704) is larger than the diameter of the central through hole of the first fixing ring (701), and the first sealing disc (704) completely seals the central through hole of the first fixing ring (701).

7. The vacuum pumping device according to claim 3, characterized in that: The one-way exhaust valve includes an L-shaped exhaust pipe (8), a second fixing ring (801), a second mounting rod (802), a second guide rod (803), a second sealing disc (804), and a second spring (805). The right end of the L-shaped exhaust pipe (8) passes through the upper left end of the piston cylinder (3), and the upper part of the L-shaped exhaust pipe (8) passes through the upper surface of the vacuum extraction pipe (1). The second fixing ring (801) is fixedly installed on the lower inner side of the L-shaped exhaust pipe (8). The second mounting rod (802) is fixedly installed on the upper inner side of the L-shaped exhaust pipe (8). The second guide rod (803) passes through the center of the upper surface of the second mounting rod (802). The second sealing disc (804) is fixedly installed at the bottom of the second guide rod (803). The second spring (805) is fixedly installed between the second sealing disc (804) and the second mounting rod (802).

8. The evacuation device of claim 7, wherein: The second spring (805) is in a naturally extended state, and at this time the second sealing disc (804) is in close contact with the upper surface of the second fixing ring (801).

9. The evacuation device of claim 8, wherein: The diameter of the second sealing disc (804) is larger than the diameter of the central through hole of the second fixing ring (801), and the second sealing disc (804) completely seals the central through hole of the second fixing ring (801).

10. The evacuation device of claim 1, wherein: The right end of the vacuum extraction tube (1) is integrally formed with an external threaded connecting tube (101), and the outer diameter of the external threaded connecting tube (101) is smaller than the outer diameter of the vacuum extraction tube (1). A sealing rubber ring (102) is sleeved on the external threaded connecting tube (101).

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