Lightweight vacuum pump

Abstract

The light-weight vacuum pump comprises a pump shell, a pump cover is fixedly connected to one side of the pump shell, an air inlet is formed in one side of the pump shell, two air outlets are formed in one side of the pump shell, a connecting opening is formed in one side of the pump shell, a rotor is rotationally inserted into the connecting opening and located in the pump shell, and a guide groove is formed in one side of the rotor. A guide groove is formed in the pump shell, a blade is slidably inserted into the guide groove, sealing heads are fixedly clamped to the two ends of the blade, a plurality of first through holes are formed in one side of the blade, a second through hole is formed in one end of the rotor, an air inlet head is fixedly connected to one side of the pump shell, and a one-way sealing assembly is arranged in the air inlet head and comprises a fixing ring. A mounting opening is formed in the inner wall of the air inlet head, and the fixing ring is fixedly clamped in the mounting opening. The blades and the rotor are of a hollow structure through the first through holes and the second through holes, so that the weight of the blades and the rotor is reduced, and the loss of the blades and the rotor during movement is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pump technology, and in particular to a lightweight vacuum pump. Background Technology

[0002] Currently, the function of a vacuum pump is to generate negative pressure, thereby increasing braking force. During the operation of a vacuum pump, the coupling drives the rotor and blades to rotate, drawing air from the outside while discharging gas and oil from the oil outlet.

[0003] The existing vacuum pump rotors and blades are relatively heavy, which increases energy consumption and fails to meet the requirements for convenient use of vacuum pumps. Therefore, in order to advance industry technology, better realize the function of reducing the weight of vacuum pumps, and improve the core technology competitiveness, this application proposes a new implementation scheme that is different from the structure and application of vacuum pump rotors and blades in the existing technology. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the heavy weight of the rotor and blades of existing vacuum pumps increases energy consumption and fails to meet the requirements for convenient use of vacuum pumps, and to propose a lightweight vacuum pump.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lightweight vacuum pump includes a pump casing, a pump cover fixedly connected to one side of the pump casing, an air inlet on one side of the pump casing, two air outlets on one side of the pump casing, a connection port on one side of the pump casing, a rotor rotatably inserted into the connection port and located inside the pump casing, a guide groove on one side of the rotor, blades slidably inserted into the guide groove, sealing heads fixedly engaged at both ends of the blades, multiple first through holes on one side of the blades, a second through hole at one end of the rotor, and an air inlet head fixedly connected to one side of the pump casing, the air inlet head containing a one-way sealing assembly.

[0007] Furthermore, the one-way sealing assembly includes a fixing ring, an installation port on the inner wall of the air inlet head, the fixing ring being fixedly snapped into the installation port, a plurality of vent holes on one side of the fixing ring, a sealing piston being slidably inserted into the fixing ring, the sealing piston being plugged into the air inlet head, and a spring being sleeved on the outer wall of the sealing piston.

[0008] Furthermore, an elastic sheet is fixedly connected to one side of the pump housing.

[0009] Furthermore, a sealing sheet is provided between the pump housing and the elastic sheet.

[0010] Furthermore, the pump casing is provided with heat dissipation holes, which are connected to the connection port.

[0011] Furthermore, a ventilation hole is provided on one side of the pump casing, which is connected to a heat dissipation hole, and a dustproof net is attached to one end of the ventilation hole.

[0012] Furthermore, a sealing ring is provided between the pump casing and the pump cover.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The blades and rotor are hollowed out by the first and second through holes, thereby reducing the weight of the blades and rotor and thus reducing the loss during the movement of the blades and rotor.

[0015] 2. The sealing piston moves inward under the impact of external atmospheric pressure, creating a gap between the sealing piston and the air inlet head to allow gas to enter. When not in use, the sealing piston returns to its original position under the elastic action of the spring, thus blocking the air inlet head and stopping the air intake. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a lightweight vacuum pump proposed in this utility model;

[0017] Figure 2 This is a partial cross-sectional front view schematic diagram of a lightweight vacuum pump proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the main structure of a lightweight vacuum pump after the pump cover has been removed, as proposed in this utility model.

[0019] Figure 4 This is a cross-sectional structural diagram showing the connection state of the rotor and blades of a lightweight vacuum pump proposed in this utility model.

[0020] Figure 5 This is a cross-sectional view of the outlet of a lightweight vacuum pump proposed in this utility model.

[0021] Figure 6 This is an exploded cross-sectional view of the one-way sealing assembly of a lightweight vacuum pump proposed in this utility model.

[0022] Figure 7 This is a side cross-sectional view of the rotor connection state of a lightweight vacuum pump proposed in this utility model.

[0023] In the diagram: 1. Pump casing; 2. Pump cover; 3. Air inlet; 4. Air outlet; 5. Connection port; 6. Rotor; 7. Guide groove; 8. Blade; 9. Sealing head; 10. First through hole; 11. Second through hole; 12. Air inlet head; 13. One-way sealing assembly; 1301. Mounting port; 1302. Retaining ring; 1303. Vent hole; 1304. Sealing piston; 1305. Spring; 14. Elastic plate; 15. Sealing plate; 16. Heat dissipation hole; 17. Ventilation hole; 18. Dustproof screen; 19. Sealing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-7 A lightweight vacuum pump includes a pump housing 1, a pump cover 2 fixed to one side of the pump housing 1 by bolts, an air inlet 3 on one side of the pump housing 1, two air outlets 4 on one side of the pump housing 1, a connection port 5 on one side of the pump housing 1, a rotor 6 rotatably inserted into the connection port 5 and located inside the pump housing 1, a guide groove 7 on one side of the rotor 6, and a blade 8 slidably inserted into the guide groove 7. Under the drive of the drive device, the rotor 6 rotates, thereby driving the blade 8 to rotate, and in turn driving the airflow in the pump housing 1, thus discharging the gas in the pump housing 1 from the air outlet 4. Both ends of the blade 8 are fixedly snapped with sealing heads 9. One side of the blade 8 is provided with multiple first through holes 10, and one end of the rotor 6 is provided with a second through hole 11. The first through holes 10 and the second through holes 11 make the blade 8 and the rotor 6 have a hollow structure, thereby reducing the weight of the blade 8 and the rotor 6, and thus reducing the loss when the blade 8 and the rotor 6 move. An air inlet head 12 is fixed to one side of the pump housing 1 by bolts, and a one-way sealing assembly 13 is provided in the air inlet head 12.

[0026] The one-way sealing assembly 13 includes a retaining ring 1302. The inner wall of the air inlet head 12 has an installation port 1301. The retaining ring 1302 is fixedly engaged within the installation port 1301. One side of the retaining ring 1302 has multiple vent holes 1303. A sealing piston 1304 is slidably inserted into the retaining ring 1302. The sealing piston 1304 blocks the air inlet head 12. Under the impact of external atmospheric pressure, the sealing piston 1304 moves inward, creating a gap between the sealing piston 1304 and the air inlet head 12 to allow gas to enter. A spring 1305 is sleeved on the outer wall of the sealing piston 1304. Under the elastic action of the spring 1305... This causes the sealing piston 1304 to reset, thereby blocking the air inlet head 12. A spring sheet 14 is fixed to one side of the pump housing 1 by bolts. The spring sheet 14 has a C-shaped structure. A sealing sheet 15 is provided between the pump housing 1 and the spring sheet 14. A heat dissipation hole 16 is provided inside the pump housing 1. The heat dissipation hole 16 is connected to the connection port 5. The heat generated by the rotor 6 when it is working is discharged from the ventilation hole 17 through the heat dissipation hole 16, thereby dissipating heat from the rotor 6. A ventilation hole 17 is provided on one side of the pump housing 1. The ventilation hole 17 is connected to the heat dissipation hole 16. A dustproof net 18 is snapped onto one end of the ventilation hole 17 to prevent dust from entering the ventilation hole 17. A sealing ring 19 is provided between the pump housing 1 and the pump cover 2.

[0027] The working principle of this embodiment is as follows: In use, the rotor 6 is connected to the drive device, and the air inlet 12 is connected to the equipment that needs to be vacuumed. Then, the rotor 6 rotates under the drive device, thereby driving the blades 8 to rotate, which in turn drives the airflow in the pump housing 1. Thus, the gas in the pump housing 1 is discharged from the air outlet 4. At this time, the air pressure in the pump housing 1 decreases. Under the impact of the external atmospheric pressure, the sealing piston 1304 moves inward, thereby creating a gap between the sealing piston 1304 and the air inlet 12. Then, the external gas enters from the gap between the sealing piston 1304 and the air inlet 12, and then enters the pump housing 1 through the vent 1303 and the air inlet 3. Under the movement of the rotor 6, the blades 8 continue to rotate, thereby continuing to discharge the gas in the pump housing 1 from the air outlet 4. Then, the rotor 6 continues to rotate to achieve continuous air pumping, thereby realizing the vacuuming operation of the equipment. After the vacuuming operation is completed, the sealing piston 1304 is reset under the elastic action of the spring 1305, thereby blocking the air inlet 12.

[0028] The first through hole 10 and the second through hole 11 make the blade 8 and the rotor 6 have a hollow structure, thereby reducing the weight of the blade 8 and the rotor 6, and thus reducing the loss when the blade 8 and the rotor 6 move. Then, the heat generated by the rotor 6 when it is working is discharged from the ventilation hole 17 through the heat dissipation hole 16, thereby dissipating heat from the rotor 6.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lightweight vacuum pump, comprising a pump housing (1), characterized in that, A pump cover (2) is fixedly connected to one side of the pump housing (1). An air inlet (3) is provided on one side of the pump housing (1). Two air outlets (4) are provided on one side of the pump housing (1). A connection port (5) is provided on one side of the pump housing (1). A rotor (6) is rotatably inserted into the connection port (5) and located inside the pump housing (1). A guide groove (7) is provided on one side of the rotor (6). A blade (8) is slidably inserted into the guide groove (7). A sealing head (9) is fixedly snapped onto both ends of the blade (8). Multiple first through holes (10) are provided on one side of the blade (8). A second through hole (11) is provided at one end of the rotor (6). An air inlet head (12) is fixedly connected to one side of the pump housing (1). A one-way sealing assembly (13) is provided inside the air inlet head (12).

2. The lightweight vacuum pump according to claim 1, characterized in that, The one-way sealing assembly (13) includes a retaining ring (1302), an installation port (1301) is provided on the inner wall of the air inlet head (12), the retaining ring (1302) is fixedly snapped into the installation port (1301), a plurality of vent holes (1303) are provided on one side of the retaining ring (1302), a sealing piston (1304) is slidably inserted into the retaining ring (1302), the sealing piston (1304) is blocked in the air inlet head (12), and a spring (1305) is sleeved on the outer wall of the sealing piston (1304).

3. A lightweight vacuum pump according to claim 1, characterized in that, An elastic piece (14) is fixedly connected to one side of the pump casing (1).

4. A lightweight vacuum pump according to claim 3, characterized in that, A sealing plate (15) is provided between the pump casing (1) and the elastic plate (14).

5. A lightweight vacuum pump according to claim 1, characterized in that, The pump casing (1) is provided with heat dissipation holes (16), which are connected to the connection port (5).

6. A lightweight vacuum pump according to claim 5, characterized in that, The pump casing (1) has a ventilation hole (17) on one side, which is connected to the heat dissipation hole (16). A dustproof net (18) is attached to one end of the ventilation hole (17).

7. A lightweight vacuum pump according to claim 1, characterized in that, A sealing ring (19) is provided between the pump casing (1) and the pump cover (2).

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