Shock absorption and noise reduction base of screw vacuum pump

Abstract

The utility model provides a screw vacuum pump shock absorption noise reduction base relates to shock absorption equipment technical field, including base, telescopic pole and connecting seat, the both sides of base are symmetrically fixed connection telescopic pole, the top of telescopic pole is fixed connection connecting seat, the number of base is two, the telescopic pole is fixed connection connecting seat. A connecting mechanism is arranged in the connecting seat, and a damper is arranged at the top of the base; according to the utility model, the nut at the top end of the bolt is unscrewed, the bolt is pushed to slide in the slide rail to adjust the position of the bolt, then the screw vacuum pump is placed at the top of the connecting seat, the top end of the bolt penetrates through the mounting hole of the screw vacuum pump foot margin, and then the nut is screwed back to the top of the bolt, so that the foot margin and the connecting seat are fixed together; and meanwhile, the nut clamps and locks the position of the bolt through the gasket and the sliding rail, and the connecting mechanism with the adjustable position can use different screw vacuum pumps.

Description

Technical Field

[0001] The utility model relates to the technical field of shock-absorbing equipment, in particular to a shock-absorbing and noise-reducing base for a screw vacuum pump. Background Technique

[0002] A screw vacuum pump is a gas pumping device that uses a pair of screws to perform synchronous high-speed reverse rotation in a pump casing to generate suction and exhaust functions. It is an updated product of an oil-sealed vacuum pump and can pump gas in occasions containing a large amount of water vapor and a small amount of dust;

[0003] When the existing screw vacuum pump exhausts, due to the extremely large difference between the pressure at the pump exhaust port and the pressure in the pump cavity, the gas in the exhaust pipeline will rapidly rush back into the pump cavity in reverse. The original gas in the pump cavity is rapidly compressed by high speed and its volume rapidly shrinks. On the one hand, it generates noise and affects the physical safety of the staff. A shock-absorbing base is needed to reduce the generation of noise. The shock-absorbing base is fixedly connected to the position of the screw vacuum pump base, and its position must fit exactly and cannot be adjusted between them, resulting in difficult assembly between them. Therefore, the utility model proposes a shock-absorbing and noise-reducing base for a screw vacuum pump to solve the above problems. Content of the Utility Model

[0004] In view of the above problems, the utility model proposes a shock-absorbing and noise-reducing base for a screw vacuum pump to solve the problem that in the prior art, the shock-absorbing base and the position of the screw vacuum pump base are fixedly connected, and their positions must fit exactly and cannot be adjusted between them, resulting in difficult assembly between them.

[0005] To achieve the purpose of the utility model, the utility model is realized through the following technical solutions: A shock-absorbing and noise-reducing base for a screw vacuum pump, including a base, a telescopic rod, and a connecting seat. The two sides of the base are symmetrically and fixedly connected with telescopic rods, the top of the telescopic rod is fixedly connected with a connecting seat, the number of the bases is set to two, a connecting mechanism is arranged inside the connecting seat, and a damper is arranged on the top of the base.

[0006] Further improvement lies in: The connecting mechanism includes a slide rail, a slider, a bolt, and a gasket. A fixing groove is arranged inside the connecting seat, a slide rail is arranged at the top of the fixing groove, a slider is slidably connected inside the slide rail, a bolt is fixedly connected to the top of the slider, a gasket is sleeved on the top of the bolt, and a nut is threadedly connected to the top of the bolt.

[0007] Further improvement lies in: The bottom of the gasket is symmetrically and fixedly connected with hooks, hook grooves are arranged at the top of the fixing groove, and the outer wall of the hook is snap-fitted with the inner wall of the hook groove.

[0008] A further improvement lies in that: the damper includes a housing, a damping pad, a top cover and a spring; a housing is provided at the top of the base; a damping pad is slidably connected to the top of the housing; a top cover is fixedly connected to the top of the damping pad; and a spring is fixedly connected to the bottom of the top cover.

[0009] A further improvement lies in that: an inner distance-adjusting rod and an outer distance-adjusting rod are provided between the two connecting seats; one end of the inner distance-adjusting rod is inserted into the interior of the outer distance-adjusting rod and is slidably connected thereto; and an adjusting mechanism is provided between the inner distance-adjusting rod and the outer distance-adjusting rod.

[0010] A further improvement lies in that: the adjusting mechanism includes a clamping cylinder and a threaded sleeve; one end of the outer distance-adjusting rod is fixedly connected to the clamping cylinder; one end of the inner distance-adjusting rod penetrates through the interior of the clamping cylinder; the threaded sleeve is threadedly connected to the outside of the clamping cylinder; and the inner side of the threaded sleeve is provided with a wedge-shaped structure.

[0011] A further improvement lies in that: the connecting seat is shaped as a frustum of a pyramid structure; a groove is provided at the top of the front surface of the connecting seat; and a horizontal liquid column is installed inside the groove.

[0012] The beneficial effects of the present utility model are as follows: Unscrew the nut at the top end of the bolt, push the bolt to slide inside the slide rail to adjust its own position, then place the screw pump on the top of the connecting seat, and make the top end of the bolt penetrate through the mounting hole of the base of the screw pump. Then tighten the nut back to the top of the bolt to fix the base to the connecting seat. At the same time, the nut clamps and locks the position of the bolt through the gasket and the slide rail. This adjustable position connecting mechanism can be used with different screw pumps to solve the problem that in the prior art, the positions of the shock-absorbing base and the base of the screw pump are fixed to each other, and their positions must exactly match and cannot be adjusted with each other, resulting in difficult assembly between them. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front view of the present utility model;

[0014] Figure 2 is the schematic structural view of the connecting seat of the present utility model;

[0015] Figure 3 is the schematic structural view of the shock-absorbing mechanism of the present utility model;

[0016] Figure 4 is the present utility model Figure 1 partial enlarged view at A.

[0017] Wherein: 1. Base; 2. Telescopic rod; 3. Connecting seat; 4. Inner distance-adjusting rod; 5. Outer distance-adjusting rod; 6. Fixed groove; 7. Slide rail; 8. Slide block; 9. Bolt; 10. Gasket; 11. Horizontal liquid column; 12. Damper; 13. Outer shell; 14. Damping pad; 15. Top cover; 16. Spring; 17. Clamping cylinder; 18. Threaded sleeve. Specific embodiments

[0018] To deepen the understanding of the present utility model, the following will further elaborate on the present utility model in combination with embodiments. These embodiments are only used to explain the present utility model and do not constitute a limitation to the protection scope of the present utility model.

[0019] According to Figure 1 、 2 As shown in Figures 3 and 4, this embodiment proposes a shock-absorbing and noise-reducing base for a screw vacuum pump, including a base 1, a telescopic rod 2, and a connecting seat 3. The two sides of the base 1 are symmetrically and fixedly connected with telescopic rods 2, and the top of the telescopic rod 2 is fixedly connected with a connecting seat 3. The number of the bases 1 is set to two. The inside of the connecting seat 3 is provided with a connecting mechanism, and a damper 12 is arranged on the top of the base 1. The connecting seat 3 is fixed to the anchor of the screw vacuum pump through the connecting mechanism. The connecting mechanism can adjust the connection position between the connecting seat 3 and the anchor of the screw vacuum pump to adapt to different types of screw vacuum pumps. The damper 12 can play a role in shock-absorbing the screw vacuum pump to reduce the vibration amplitude of the screw vacuum pump and reduce the noise generated by the screw vacuum pump.

[0020] The connecting mechanism includes a slide rail 7, a slide block 8, a bolt 9, and a gasket 10. The inside of the connecting seat 3 is provided with a fixed groove 6. The top of the fixed groove 6 is provided with a slide rail 7. The inside of the slide rail 7 is slidably connected with a slide block 8. The top of the slide block 8 is fixedly connected with a bolt 9. The top of the bolt 9 is sleeved with a gasket 10. The top of the bolt 9 is threadedly connected with a nut. Unscrew the nut at the top of the bolt 9, push the bolt 9 to slide inside the slide rail 7 to adjust its own position, then place the screw vacuum pump on the top of the connecting seat 3 and make the top of the bolt 9 penetrate through the installation hole of the anchor of the screw vacuum pump. Then tighten the nut back to the top of the bolt 9 to fix the anchor to the connecting seat 3. At the same time, the nut clamps and locks the position of the bolt 9 through the gasket 10 and the slide rail 7. This connecting mechanism with adjustable position can be used for different screw vacuum pumps.

[0021] The bottom of the gasket 10 is symmetrically and fixedly connected with hooks. The top of the fixed groove 6 is provided with hook grooves. The outer wall of the hook is engaged with the inner wall of the hook groove. Place the hook in a position parallel to the hook groove, and then insert the slide rail 7 along the inner wall of the hook groove into the top of the fixed groove 6 to fix the slide rail 7 on the top of the connecting seat 3.

[0022] The damper 12 includes a housing 13, a damping pad 14, a top cover 15 and a spring 16. The top of the base 1 is provided with the housing 13. The damping pad 14 is slidably connected to the top of the housing 13. The top of the damping pad 14 is fixedly connected to the top cover 15. The bottom of the top cover 15 is fixedly connected to the spring 16. When the screw vacuum pump generates vibration, it squeezes the spring 16 to contract through the damper 12. While the damping pad 14 moves downward, it rubs against the inner wall of the housing 13. The generated frictional force can consume the kinetic energy generated by the vibration of the screw vacuum pump. Then, the elastic force generated by the spring 16 drives the damping pad 14 to move upward and reset, so as to damp the screw vacuum pump and achieve the effect of damping noise.

[0023] A distance-adjusting inner rod 4 and a distance-adjusting outer rod 5 are provided between the two connecting seats 3. One end of the distance-adjusting inner rod 4 is inserted into the interior of the distance-adjusting outer rod 5 and is slidably connected thereto. An adjusting mechanism is provided between the distance-adjusting inner rod 4 and the distance-adjusting outer rod 5. The adjusting mechanism includes a clamping cylinder 17 and a threaded sleeve 18. One end of the distance-adjusting outer rod 5 is fixedly connected to the clamping cylinder 17. One end of the distance-adjusting inner rod 4 penetrates out of the interior of the clamping cylinder 17. The outside of the clamping cylinder 17 is threadedly connected to the threaded sleeve 18. The inner side of the threaded sleeve 18 is of a wedge-shaped structure. By turning the tapered end of the threaded sleeve 18 away from the clamping cylinder 17, the clamping cylinder 17 no longer clamps the distance-adjusting inner rod 4, and the distance-adjusting inner rod 4 can freely slide inside the distance-adjusting outer rod 5 to adjust the distance between the two connecting seats 3 so as to fit the distance between the two feet of the screw vacuum pump. Then, by turning the tapered end of the threaded sleeve 18 close to the clamping cylinder 17, the inner wall of the threaded sleeve 18 will clamp and lock the position of the distance-adjusting inner rod 4 through the clamping cylinder 17.

[0024] The shape of the connecting seat 3 is a trapezoid structure. A groove is provided at the top of the front surface of the connecting seat 3. A horizontal liquid column 11 is installed inside the groove. When the base 1 is placed on the ground, the horizontal liquid column 11 inside the connecting seat 3 can be used to observe whether the position of the base 1 is horizontal, so as to reduce the vibration generated by the screw vacuum pump.

[0025] For this screw vacuum pump shock-absorbing and noise-reducing base, unscrew the nut at the top of the bolt 9, push the bolt 9 to slide inside the slide rail 7 to adjust its own position, then place the screw vacuum pump on the top of the connecting seat 3 and make the top of the bolt 9 penetrate out of the installation hole of the screw vacuum pump foot. Then tighten the nut back to the top of the bolt 9 to fix the foot and the connecting seat 3 together. At the same time, the nut clamps and locks the position of the bolt 9 through the gasket 10 and the slide rail 7. This adjustable position connecting mechanism can be used for different screw vacuum pumps.

[0026] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A vibration-damping and noise-reducing base for a screw vacuum pump, comprising a base (1), a telescopic rod (2) and a connecting seat (3), characterized in that: The two sides of the base (1) are symmetrically fixedly connected with telescopic rods (2), the top of the telescopic rod (2) is fixedly connected with a connecting seat (3), the number of the bases (1) is set to two, the interior of the connecting seat (3) is provided with a connecting mechanism, and the top of the base (1) is provided with a damper (12); The connecting mechanism comprises a slide rail (7), a slider (8), a bolt (9) and a gasket (10); a fixing groove (6) is provided inside the connecting seat (3); a slide rail (7) is provided at the top of the fixing groove (6); a slide rail (8) is slidably connected inside the slide rail (7); a bolt (9) is fixedly connected to the top of the slider (8); a gasket (10) is sleeved on the top of the bolt (9); and a nut is threadedly connected to the top of the bolt (9).

2. The vibration-damping and noise-reducing base of a screw vacuum pump according to claim 1, characterized in that: The bottom of the gasket (10) is symmetrically fixedly connected with a hook, the top of the fixing groove (6) is provided with a hook groove, and the outer wall of the hook is engaged with the inner wall of the hook groove.

3. The vibration and noise reduction base of a screw vacuum pump according to claim 1, characterized in that: The damper (12) comprises a shell (13), a damping pad (14), a top cover (15) and a spring (16); the top of the base (1) is provided with a shell (13); the top of the shell (13) is slidably connected to the damping pad (14); the top of the damping pad (14) is fixedly connected to the top cover (15); and the bottom of the top cover (15) is fixedly connected to the spring (16).

4. The vibration-damping and noise-reducing base of a screw vacuum pump according to claim 1, characterized in that: An adjustable inner rod (4) and an adjustable outer rod (5) are provided between the two connecting seats (3); one end of the adjustable inner rod (4) is inserted into the inner part of the adjustable outer rod (5) and is slidably connected thereto; an adjusting mechanism is provided between the adjustable inner rod (4) and the adjustable outer rod (5).

5. The vibration-damping and noise-reducing base of a screw vacuum pump according to claim 4, characterized in that: The adjustment mechanism comprises a clamp (17) and a threaded sleeve (18); one end of the distance-adjusting outer rod (5) is fixedly connected to the clamp (17); one end of the distance-adjusting inner rod (4) passes through the interior of the clamp (17); the outer side of the clamp (17) is threadedly connected to the threaded sleeve (18); and the inner side of the threaded sleeve (18) is configured as a wedge-shaped structure.

6. The vibration-damping and noise-reducing base of a screw vacuum pump according to claim 1, characterized in that: The shape of the connection seat (3) is set as a trapezoidal structure, and the top of the front side of the connection seat (3) is provided with a groove, and a horizontal liquid column (11) is installed inside the groove.

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