A vacuum pump with high stability

Abstract

The utility model relates to the technical field of vacuum pump, and disclose a kind of strong stability vacuum pump, including vacuum pump body, vacuum pump body lower end surface is fixedly connected with connecting plate, connecting plate below is provided with base, the center of base upper end surface is provided with ventilation slot, several radiating fins are fixedly connected in ventilation slot, base upper end surface is symmetrically provided with side plate, and the through slot is set in the side plate, can promote vacuum pump body to ascend, increase the clearance between base and vacuum pump body lower end surface, not only reduce the direct contact area of bottom and base, make the air circulation between the bottom of vacuum pump body and base more smooth, increase the heat dissipation area, it is favorable to the rapid emission of heat, reduce the temperature inside vacuum pump, improve the stability of vacuum pump body in the working process, and with the reduction of temperature, under lower working temperature, the performance of vacuum pump body can be maintained or improved, and suction rate and compression ratio are improved accordingly.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pump technology, specifically to a vacuum pump with high stability. Background Technology

[0002] A vacuum pump is a device or equipment that uses mechanical, physical, chemical or physicochemical methods to evacuate a container to obtain a vacuum. The basic principle is to extract gas from a closed space in some way, thereby reducing the gas pressure in that space.

[0003] During the operation of a vacuum pump, it is necessary to maintain the temperature generated by the pump to avoid excessively high temperatures affecting its performance. However, most existing vacuum pumps are bolted to the base, with the bottom of the pump in close contact with the base, which does not allow for effective heat dissipation. As the internal temperature of the vacuum pump rises, it not only increases friction among the internal components, thereby increasing energy loss and reducing the pump's pumping speed and compression ratio, but also affects the sealing performance of the vacuum pump, leading to increased gas leakage and a decrease in the system's vacuum level.

[0004] Therefore, we proposed a vacuum pump with high stability to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present invention provides a vacuum pump with high stability, which solves the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A highly stable vacuum pump includes a vacuum pump body, a connecting plate fixedly connected to the lower end face of the vacuum pump body, a base disposed below the connecting plate, a ventilation groove formed at the center of the upper end face of the base, a plurality of heat sinks fixedly connected in the ventilation groove, side plates symmetrically formed on the upper end face of the base, each side plate having a through groove, and a lifting plate vertically slidably connected to the side plate near the vacuum pump body, the lifting plates being fixedly connected to the side wall of the connecting plate.

[0008] As a further embodiment of this utility model: a connecting column is fixedly connected to the side of the lifting plate near the through slot, and the connecting column passes through the side plate through the through slot. A lifting plate is rotatably connected to the end of the connecting column away from the lifting plate. A movable plate is rotatably connected between the ends of the two lifting plates away from the connecting column, and the movable plate is horizontally slidably connected to the base.

[0009] As a further embodiment of this utility model: a threaded rod is threadedly connected through the movable plate, one end of the threaded rod is rotatably connected to the base, a knob is sleeved on the outer surface of the threaded rod through the base, and symmetrical sliding grooves are opened on the outer surface of the threaded rod near the knob, with sliders slidably connected in each of the sliding grooves, and the sliders are fixedly connected in the knobs.

[0010] As a further embodiment of this utility model: a ring is rotatably connected to the outer surface of the knob, and a connecting rod is symmetrically rotatably connected to the outer surface of the ring. A moving block is rotatably connected to the side of the connecting rod away from the ring. A sliding column is fixedly connected through the moving block. A support block is slidably connected to the outer surface of the sliding column. The support block is fixedly connected to the side wall of the base. A stop plate is fixedly connected to the side of the sliding column near the threaded rod. The stop plate is initially in contact with the outer surface of the threaded rod.

[0011] As a further embodiment of this utility model: a return spring is fixedly connected between the moving block and the support block, and the return spring is sleeved on the outer surface of the sliding column.

[0012] The beneficial effects of this utility model are:

[0013] 1. The threaded rod, moving plate, lifting plate, connecting column, lifting plate, and connecting plate can push the vacuum pump body to rise, increasing the gap between the base and the lower end face of the vacuum pump body. This not only reduces the direct contact area between the bottom and the base, making the airflow between the bottom of the vacuum pump body and the base smoother, but also increases the heat dissipation area, which is conducive to the rapid dissipation of heat, reduces the internal temperature of the vacuum pump, and improves the stability of the vacuum pump body during operation. Moreover, as the temperature decreases, the performance of the vacuum pump body is maintained or improved at lower operating temperatures, and the pumping rate and compression ratio are correspondingly increased.

[0014] 2. By setting a stop plate to limit the threaded rod, it is possible to prevent the threaded rod from rotating due to vibration after the vacuum pump body is raised, which would cause the vacuum pump body to sway up and down. This reduces the transmission of vibration to other components or systems, lowers the vibration level of the entire system, and further improves the stability and reliability of the vacuum pump body. Attached Figure Description

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

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

[0017] Figure 2 This utility model Figure 1 Enlarged structural diagram of region A in the middle;

[0018] Figure 3 This is a schematic diagram of the lifting plate connection structure of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram of region B in the middle;

[0020] Figure 5 This is a schematic diagram of the upper end face structure of the base of this utility model;

[0021] In the diagram: 1. Vacuum pump body; 2. Connecting plate; 3. Base; 4. Side plate; 5. Through slot; 6. Connecting column; 7. Lifting plate; 8. Knob; 9. Threaded rod; 10. Ventilation slot; 11. Heat sink; 12. Support block; 13. Ring; 14. Connecting rod; 15. Moving block; 16. Return spring; 17. Sliding column; 18. Stop plate; 19. Lifting plate; 20. Moving plate; 21. Slide groove; 22. Slider. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Example:

[0024] like Figures 1-5 As shown, a highly stable vacuum pump includes a vacuum pump body 1. A connecting plate 2 is fixedly connected to the lower end face of the vacuum pump body 1. A base 3 is provided below the connecting plate 2. A ventilation groove 10 is provided at the center of the upper end face of the base 3. Several heat sinks 11 are fixedly connected in the ventilation groove 10. Side plates 4 are symmetrically provided on the upper end face of the base 3. Through grooves 5 are provided on each side plate 4. A lifting plate 19 is vertically slidably connected to the side of the side plate 4 near the vacuum pump body 1. The lifting plates 19 are fixedly connected to the side wall of the connecting plate 2.

[0025] In this embodiment, as Figure 3 As shown, a connecting column 6 is fixedly connected to the side of the lifting plate 19 near the through slot 5. The connecting column 6 passes through the side plate 4 through the through slot 5. A lifting plate 7 is rotatably connected to the end of the connecting column 6 away from the lifting plate 19. A movable plate 20 is rotatably connected between the ends of the two lifting plates 7 away from the connecting column 6. The movable plate 20 is horizontally slidably connected to the base 3. When the movable plate 20 slides in the base 3, it can push the lifting plate 19 to rise synchronously on the side wall of the side plate 4 through the lifting plates 7 and connecting columns 6 connected on both sides.

[0026] In this embodiment, as Figure 3and Figure 4 As shown, a threaded rod 9 is threadedly connected to the movable plate 20. One end of the threaded rod 9 is rotatably connected to the base 3. A knob 8 is fitted on the outer surface of the end of the threaded rod 9 that passes through the base 3. A sliding groove 21 is symmetrically opened on the outer surface of the threaded rod 9 near the knob 8. A slider 22 is slidably connected in each of the sliding grooves 21. The sliders 22 are fixedly connected in the knob 8. When the knob 8 is rotated, the threaded rod 9 is rotated, which can drive the movable plate 20 to move synchronously on the outer surface of the threaded rod 9. And through the sliders 22 and the sliding grooves 21, the knob 8 can be pushed to slide horizontally on the surface of the threaded rod 9.

[0027] In this embodiment, as Figure 2 and Figure 4 As shown, a ring 13 is rotatably connected to the outer surface of the knob 8. A connecting rod 14 is symmetrically rotatably connected to the outer surface of the ring 13. A moving block 15 is rotatably connected to the side of the connecting rod 14 away from the ring 13. A sliding column 17 is fixedly connected through the moving block 15. A support block 12 is slidably connected to the outer surface of the sliding column 17. The support block 12 is fixedly connected to the side wall of the base 3. A stop plate 18 is fixedly connected to the side of the sliding column 17 near the threaded rod 9. The stop plate 18 is initially in contact with the outer surface of the threaded rod 9. When the knob 8 is pushed to slide on the outer surface of the threaded rod 9, the moving block 15 can be pushed by the ring 13 and the connecting rod 14 to drive the sliding column 17 to slide synchronously on the support block 12, thereby causing the stop plate 18 and the threaded rod 9 to separate.

[0028] In this embodiment, as Figure 2 As shown, a reset spring 16 is fixedly connected between the moving block 15 and the support block 12. The reset spring 16 is sleeved on the outer surface of the slide column 17. The reset spring 16 will push the moving block 15 to drive the slide column 17 to slide in the opposite direction on the support block 12.

[0029] The effects achieved by this embodiment are as follows: In the prior art, vacuum pumps are generally fixed to the base 3 with bolts, and the bottom of the pump is in close contact with the base 3, which cannot effectively dissipate heat. As the internal temperature of the vacuum pump increases, it will not only increase the friction of the internal components of the pump, thereby increasing energy loss and reducing the pumping speed and compression ratio, but also affect the sealing performance of the vacuum pump, leading to increased gas leakage inside the pump and thus reducing the vacuum degree of the system. Compared with the prior art, this embodiment can push the vacuum pump body 1 to rise, increasing the gap between the base 3 and the lower end face of the vacuum pump body 1. This not only reduces the direct contact area between the bottom and the base 3, making the air flow between the bottom of the vacuum pump body 1 and the base 3 smoother, but also increases the heat dissipation area, which is conducive to the rapid dissipation of heat, reduces the internal temperature of the vacuum pump, and improves the stability of the vacuum pump body 1 during operation. Moreover, as the temperature decreases, the performance of the vacuum pump body 1 is maintained or improved at lower operating temperatures, and the pumping speed and compression ratio are correspondingly increased.

[0030] The overall working process and principles involved in the above embodiments are as follows:

[0031] When the vacuum pump body 1 is needed, the operator first pushes the knob 8, which slides through the slider 22 and the groove 21, allowing the knob 8 to slide horizontally on the outer surface of the threaded rod 9 towards the base 3. At this time, the knob 8 will drive the ring 13 connected to the outer surface to move synchronously, driving the ring 13 to push the connecting rod 14 connected to both sides to move from an inclined position to a horizontal position. As the state of the connecting rod 14 changes, the connecting rod 14 will push the moving block 15 to drive the sliding column 17 to slide horizontally on the support block 12, squeezing the return spring 16 connected between the moving block 15 and the support block 12, and at the same time pulling the stop plate 18 connected to one end of the sliding column 17 to separate from the threaded rod 9. After the stop plate 18 and the threaded rod 9 are completely separated, the operator can turn the knob 8 to drive the threaded rod 9 to rotate. Through the threaded connection between the threaded rod 9 and the moving plate 20, the moving plate 20 can be driven to move horizontally inside the base 3, while simultaneously driving the moving plate 20 to move horizontally. The lower ends of the lifting plates 7 connected to both sides of the 0 rotate synchronously and move horizontally, so that the lifting plates 7 move from an inclined position to a vertical position. At this time, as the state of the lifting plates 7 changes, the lifting plates 7 will push the lifting plates 19 to rise synchronously on the side wall of the side plate 4 through the connecting column 6. Since the lifting plates 19 are connected to the vacuum pump body 1 through the connecting plate 2, the lifting plates 19 can drive the vacuum pump body 1 to rise synchronously during the rising process, increasing the gap between the base 3 and the lower end face of the vacuum pump body 1. This not only reduces the direct contact area between the bottom and the base 3, making the air flow between the bottom of the vacuum pump body 1 and the base 3 smoother, but also increases the heat dissipation area, which is conducive to the rapid dissipation of heat, reduces the internal temperature of the vacuum pump, and improves the stability of the vacuum pump body 1 during operation. Moreover, as the temperature decreases, the performance of the vacuum pump body 1 can be maintained or improved at a lower operating temperature, and the pumping rate and compression ratio are correspondingly increased.

[0032] Once the vacuum pump body 1 has risen, the operator can release the knob 8. The rebound force of the reset spring 16 connected between the moving block 15 and the support block 12 will push the moving block 15 to move the sliding column 17 horizontally away from the support block 12, and push the stop plate 18 to stick to the outer surface of the threaded rod 9 again, limiting the threaded rod 9. This prevents the threaded rod 9 from rotating due to vibration after the vacuum pump body 1 is raised, thus reducing the transmission of vibration to other components or systems, lowering the vibration level of the entire system, and further improving the stability and reliability of the vacuum pump body 1.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A vacuum pump with high stability, characterized in that, The system includes a vacuum pump body (1), a connecting plate (2) is fixedly connected to the lower end face of the vacuum pump body (1), a base (3) is provided below the connecting plate (2), a ventilation groove (10) is provided at the center of the upper end face of the base (3), a number of heat sinks (11) are fixedly connected in the ventilation groove (10), a side plate (4) is symmetrically provided on the upper end face of the base (3), a through groove (5) is provided on each side plate (4), a lifting plate (19) is vertically slidably connected to the side of the side plate (4) near the vacuum pump body (1), and the lifting plate (19) is fixedly connected to the side wall of the connecting plate (2).

2. The vacuum pump of claim 1, wherein, The lifting plate (19) is fixedly connected to a connecting column (6) on the side near the through slot (5). The connecting column (6) passes through the side plate (4) through the through slot (5). The end of the connecting column (6) away from the lifting plate (19) is rotatably connected to a lifting plate (7). The two lifting plates (7) are rotatably connected to a moving plate (20) between the ends away from the connecting column (6). The moving plate (20) is horizontally slidably connected to the base (3).

3. The vacuum pump of claim 2, wherein, A threaded rod (9) is threaded through the movable plate (20). One end of the threaded rod (9) is rotatably connected to the base (3). A knob (8) is sleeved on the outer surface of one end of the threaded rod (9) that passes through the base (3). A sliding groove (21) is symmetrically opened on the outer surface of the threaded rod (9) near the knob (8). A slider (22) is slidably connected in each of the sliding grooves (21). The sliders (22) are all fixedly connected in the knob (8).

4. The vacuum pump of claim 3, wherein, The outer surface of the knob (8) is rotatably connected to a ring (13), and the outer surface of the ring (13) is symmetrically connected to a connecting rod (14). The connecting rod (14) is rotatably connected to a moving block (15) on the side away from the ring (13). A sliding column (17) is fixedly connected through the moving block (15). A support block (12) is slidably connected to the outer surface of the sliding column (17). The support block (12) is fixedly connected to the side wall of the base (3). A stop plate (18) is fixedly connected to the side of the sliding column (17) near the threaded rod (9). The stop plate (18) is initially in contact with the outer surface of the threaded rod (9).

5. The vacuum pump of claim 4, wherein, A return spring (16) is fixedly connected between the moving block (15) and the support block (12), and the return spring (16) is sleeved on the outer surface of the sliding column (17).

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