Air-cooled screw vacuum pump

Abstract

The utility model relates to the technical field of vacuum pumps, and discloses an air-cooled screw vacuum pump, which comprises a screw vacuum pump, a vacuum pump base fixedly arranged at the bottom of the screw vacuum pump, a vacuum pump driving part fixedly arranged on one side of the screw vacuum pump, and a fitting plate sleeved outside the vacuum pump driving part, the adjusting groove is formed in the surface of the vacuum pump driving part, and a displacement block is slidably mounted in the adjusting groove; the displacement connecting plate is fixedly arranged at the upper end of the displacement block, a locking mechanism is arranged on the displacement connecting plate, and the locking mechanism enables the closing cover plate to be tightly attached to the air hole. The driving part of the vacuum pump is sleeved with the attaching plate reinforced through the inserting rod, the position of the closed cover plate is adjusted by sliding the displacement block in the adjusting groove, the closed cover plate can be tightly attached to the heat dissipation hole of the driving part of the vacuum pump through the locking rod, and the closed cover plate and the heat dissipation hole can be combined more tightly through the locking mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to an air-cooled screw vacuum pump. Background Art

[0002] The screw vacuum pump is an exhaust device that uses a pair of screws to rotate synchronously at high speed in opposite directions in the pump casing to produce suction and exhaust effects. It is an upgraded version of the oil-sealed vacuum pump and can extract gases containing a large amount of water vapor and a small amount of dust. It is widely used in domestic pharmaceutical, chemical, semiconductor and other corporate fields that have high requirements for clean vacuum.

[0003] Screw vacuum pumps often use heat dissipation holes to dissipate internal heat. However, with the continuous use of the vacuum pump, heat accumulates faster, and the inability to quickly dissipate heat will affect the normal use of the vacuum pump. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an air-cooled screw vacuum pump to solve the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: comprising: a screw vacuum pump, a vacuum pump base fixed at the bottom of the screw vacuum pump, and a vacuum pump driving part fixed at one side of the screw vacuum pump,

[0006] Also includes:

[0007] A laminating plate is sleeved outside the driving part of the vacuum pump;

[0008] An adjusting groove is provided on the surface of the driving part of the vacuum pump, and a displacement block is slidably installed in the adjusting groove;

[0009] The surface of the vacuum pump driving part is provided with a vent hole, and a closed cover plate is attached to the vent hole;

[0010] The displacement connecting plate is fixedly arranged on the upper end of the displacement block. A locking mechanism is arranged on the displacement connecting plate, and the locking mechanism makes the closing cover plate close to the air vent.

[0011] Furthermore, a displacement slide groove is provided on one side of the laminating plate, and a positioning screw is transversely inserted into the groove of the displacement slide groove.

[0012] Furthermore, the side wall of the displacement block extends into the groove of the displacement slide groove, and a screw hole is provided on the end surface of the displacement block extending into the groove of the displacement slide groove, and the front end of the positioning screw is connected to the screw hole.

[0013] Furthermore, two ends of the bonding plate are fixed with reinforcing bottom plates, and the bottom of the reinforcing bottom plates is laterally inserted with through rods.

[0014] Furthermore, locking grooves are provided on the surface of the closing cover, and the locking grooves are distributed in a rectangular shape on the surface of the closing cover.

[0015] Furthermore, the locking mechanism includes a locking rod, a moving block, a driving connecting rod, a tightening block and a spring. The locking rod is inserted into the surface of the displacement connecting plate, the moving block is connected to the bottom of the locking rod, the driving connecting rod is connected to both ends of the moving block, the tightening block is connected to the lower end of the driving connecting rod, and the spring is fixed at the front end of the tightening block.

[0016] Furthermore, the tightening block is slidably connected to the locking groove, the two ends of the driving connecting rod are respectively connected to the moving block and the tightening block through a rotating shaft, and an inflation pipe port is installed on the surface of the displacement slide groove.

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

[0018] The present application sets a fitting plate reinforced by an inserted rod on the vacuum pump driving part, and adjusts the position of the closed cover by sliding the displacement block in the groove of the adjustment groove. The closed cover can be tightly attached to the heat dissipation hole of the vacuum pump driving part through the locking rod, and the combination of the closed cover and the heat dissipation hole can be made tighter through the locking mechanism, and the inflation pipe port is provided to be connected with the external airflow, so that the airflow rushes into the vacuum pump driving part and is discharged from the heat dissipation hole on the other side, thereby accelerating the air flow rate, improving the heat dissipation capacity, and reducing heat accumulation. In addition, the entire air-cooling structure adopts a detachable and adjustable installation method, which can be adaptively adjusted according to needs, and is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the connection between the reinforced bottom plate and the through rod of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the laminating plate of the utility model;

[0022] Figure 4 This is an enlarged view of the laminating plate of the utility model;

[0023] Figure 5 This is a structural schematic diagram of the locking rod of the utility model.

[0024] In the figure: 1. Screw vacuum pump; 2. Vacuum pump base; 3. Vacuum pump drive unit; 4. Laminating plate; 5. Adjustment groove; 6. Insertion rod; 7. Displacement block; 8. Displacement slide groove; 9. Displacement connecting plate; 10. Locking rod; 11. Positioning screw; 12. Locking groove; 13. Moving block; 14. Driving connecting rod; 15. Clamping block; 16. Inflating pipe mouth; 17. Spring; 18. Closing cover plate; 19. Reinforcement bottom plate. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-5 , including: a screw vacuum pump 1, a vacuum pump base 2 fixed at the bottom of the screw vacuum pump 1, and a vacuum pump driving part 3 fixed at one side of the screw vacuum pump 1, a bonding plate 4 is sleeved outside the vacuum pump driving part 3, the bonding plate 4 adopts an arc-shaped plate structure, and is closely attached to the upper end of the vacuum pump driving part 3, and a reinforcing bottom plate 19 is fixed at both ends of the bonding plate 4, and two groups of jacks are opened at the bottom of the reinforcing bottom plate 19, and the jacks are inserted with insertion rods 6, and the insertion rods 6 are respectively passed through the two groups of reinforcing bottom plates 19 and reinforced by nuts, so that the bonding plate 4 is stably sleeved outside the vacuum pump driving part 3, and the adjustment slot 5 is opened On the surface of the vacuum pump driving part 3, a displacement block 7 is slidably installed in the adjusting groove 5. The displacement block 7 can slide in the groove of the adjusting groove 5 to change the position of the displacement block 7 outside the vacuum pump driving part 3. An arc-shaped displacement slide groove 8 is opened on the side wall of the adjusting groove 5. A protrusion is set on the side wall of the displacement block 7. The protrusion extends into the groove of the displacement slide groove 8, so that the displacement block 7 can slide in the groove of the adjusting groove 5 and cannot be separated. A screw hole is set at the protrusion. On one side of the displacement slide groove 8, the front end of the positioning screw 11 can pass through the displacement slide groove 8 and combine with the screw hole, so as to lock the position of the displacement block 7.

[0027] A vent is provided on the surface of the vacuum pump driving part 3, and a closing cover 18 is attached to the vent. The displacement connecting plate 9 is fixed on the upper end of the displacement block 7. A locking mechanism is provided on the displacement connecting plate 9. The locking mechanism makes the closing cover 18 close to the vent. The locking mechanism includes a locking rod 10, a moving block 13, a driving connecting rod 14, a tightening block 15 and a spring 17. The locking rod 10 is inserted into the surface of the displacement connecting plate 9, the moving block 13 is connected to the bottom of the locking rod 10, the driving connecting rod 14 is connected to the two ends of the moving block 13, the tightening block 15 is connected to the lower end of the driving connecting rod 14, and the spring 17 is fixed to the front end of the tightening block 15. A locking groove 12 is provided on the surface of the closing cover 18. The locking grooves 12 are rectangularly distributed on the surface of the closing cover 18. The tightening block 15 is slidably connected to the groove of the locking groove 12. The two ends of the driving connecting rod 14 are respectively connected to the moving block 13 and the tightening block 15 through a rotating shaft. A socket is provided at the bottom of the rod 10, and an insert is provided at the top of the moving block 13. The insert is combined with the socket. As the locking rod 10 spirally descends at the displacement connecting plate 9, the moving block 13 is driven to move downward, and the tightening block 15 is placed in the groove of the locking groove 12, driving the driving connecting rod 14 to move toward the farthest end of the locking groove 12. At the same time, under the movement of the locking rod 10, the closing cover 18 is dragged to stick to the air vent. As the tightening block 15 continues to move, the spring 17 is compressed between the locking groove 12 and the tightening block 15, and finally the closing cover 18 is made to stick to the air vent. An inflation pipe port 16 connected to the external air flow is also provided on the surface of the closing cover 18. The pipeline is connected to the inflation pipe port 16, and the air is allowed to penetrate into the vacuum pump drive unit 3 from the inflation pipe port 16 at a high speed through an external blower, and the air flow is discharged from the exhaust hole on the other side, thereby completing the efficient heat dissipation inside the entire vacuum pump.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air-cooled screw vacuum pump, comprising: A screw vacuum pump (1), a vacuum pump base (2) fixed to the bottom of the screw vacuum pump (1), and a vacuum pump drive unit (3) fixed to one side of the screw vacuum pump (1). It is characterized by further comprising: A laminating plate (4) is sleeved outside the vacuum pump driving part (3); An adjusting groove (5) is provided on the surface of the vacuum pump driving part (3), and a displacement block (7) is slidably installed in the adjusting groove (5); A vent hole is provided on the surface of the vacuum pump driving part (3), and a closing cover plate (18) is attached to the vent hole; The displacement connecting plate (9) is fixedly arranged on the upper end of the displacement block (7). A locking mechanism is arranged on the displacement connecting plate (9), and the locking mechanism enables the closing cover plate (18) to be closely attached to the air vent.

2. The air-cooled screw vacuum pump according to claim 1, characterized in that: A displacement slide groove (8) is provided on one side of the laminating plate (4), and a positioning screw rod (11) is inserted transversely into the groove of the displacement slide groove (8).

3. An air-cooled screw vacuum pump according to claim 2, characterized in that: The side wall of the displacement block (7) extends into the groove of the displacement slide groove (8), and a screw hole is provided on the end surface of the displacement block (7) extending into the groove of the displacement slide groove (8), and the front end of the positioning screw rod (11) is connected to the screw hole.

4. The air-cooled screw vacuum pump according to claim 1, characterized in that: Reinforced bottom plates (19) are fixedly provided at both ends of the bonding plate (4), and a penetration rod (6) is transversely inserted at the bottom of the reinforced bottom plate (19).

5. The air-cooled screw vacuum pump according to claim 1, characterized in that: The surface of the closing cover plate (18) is provided with locking grooves (12), and the locking grooves (12) are distributed in a rectangular shape on the surface of the closing cover plate (18).

6. The air-cooled screw vacuum pump according to claim 1, characterized in that: The locking mechanism comprises a locking rod (10), a moving block (13), a driving connecting rod (14), a tightening block (15) and a spring (17); the locking rod (10) is plugged into the surface of a displacement connecting plate (9); the moving block (13) is connected to the bottom of the locking rod (10); the driving connecting rod (14) is connected to both ends of the moving block (13); the tightening block (15) is connected to the lower end of the driving connecting rod (14); and the spring (17) is fixed to the front end of the tightening block (15).

7. The air-cooled screw vacuum pump according to claim 6, characterized in that: The tightening block (15) is slidably connected in the groove of the locking groove (12), and the two ends of the driving connecting rod (14) are respectively connected to the moving block (13) and the tightening block (15) through a rotating shaft, and an inflation pipe port (16) is installed on the surface of the displacement slide groove (8).

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