Vacuum machine with quick adjusting mechanism

Abstract

The utility model relates to the technical field of vacuum machines, and discloses a vacuum machine with a quick adjusting mechanism, which comprises a vacuum machine main body and a base, the base is fixedly arranged at the bottom end of the vacuum machine main body, a lifting component is arranged in the base, a main shaft is arranged at the bottom end of the lifting component, and a quick adjusting mechanism is arranged at the bottom end of the main shaft. The main shaft is arranged in the base, the main shaft is driven by a motor to rotate in the base, a reinforcing assembly is arranged in the middle of the main shaft, the base is slidably connected with four supporting legs, and the tops of the supporting legs are connected with a lifting assembly; the lifting device has the advantages that the motor drives the main shaft, the worm, the worm gear and the two lead screws to drive the lifting assembly to ascend and descend, due to the fact that the two lead screws are arranged, the fulcrum of the lifting assembly can be increased, the lifting assembly is not prone to inclining, the lifting assembly can drive the supporting legs to ascend and descend, and the heights of the four supporting legs can be synchronously adjusted; manual operation is not needed, and manpower is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum machines, in particular to a vacuum machine with a quick adjustment mechanism. Background Art

[0002] A vacuum machine is a device that has the ability to obtain and maintain a vacuum. It extracts the gas from the vacuum chamber by evacuating it, thereby creating a low-pressure or vacuum environment. Vacuum technology is widely used in many fields such as aviation, aerospace, electronics, medicine, chemistry, metallurgy, glass, etc.

[0003] Its application number "CN201820724309.9" discloses a "vacuum machine for preparing cyclic acid that is easy to adjust", which "comprises a vacuum machine body, the lower surface of which is fixedly connected to the upper surface of a connecting plate, and the lower surface of the connecting plate is fixedly connected to a first fixed plate and a second fixed plate, the first fixed plate and the second fixed plate are respectively provided with a first slide groove and a second slide groove on opposite surfaces, and the first slide groove and the second slide groove are respectively slidably connected with a first slider and a second slider". In the utility model, by arranging bearings and rotating shafts, the height of the threaded rod can be fixed, and the threaded rod can rotate with the rotation of the rotating shaft under the rotation of the adjusting disk, so that the threaded barrel that is limited to rotation can move up and down, so that the height of the threaded barrel can be adjusted by rotating the adjusting disk, and then the height of the vacuum machine body from the ground can be adjusted, so that it can be adapted to operators of different heights and improve the comfort of operators at work.

[0004] However, the above method still has the following defects: the rotating shaft can drive the threaded rod to rotate in the bearing through the adjustment disk, but it needs manual operation. Due to the large mass of the vacuum machine body, the adjustment process is relatively labor-intensive, and the heights of the four threaded barrels need to be adjusted in sequence, and the adjustment speed is slow. Utility Model Content

[0005] The utility model aims to provide a vacuum machine with a quick adjustment mechanism to solve the problem in the background art that the rotating shaft can drive the threaded rod to rotate in the bearing through the adjustment disk, but manual operation is required and the adjustment process is labor-intensive.

[0006] The utility model provides the following technical solutions: a vacuum machine with a quick adjustment mechanism, comprising a vacuum machine body and a base, a base is fixedly provided at the bottom end of the vacuum machine body, a lifting assembly is provided inside the base, a main shaft is provided at the bottom end of the lifting assembly, and the main shaft is driven by a motor to rotate inside the base, a reinforcement assembly is provided in the middle of the main shaft, the base is slidably connected with support legs, four support legs are provided, the top of the support legs is connected to the lifting assembly, the base is internally rotatably connected with two transmission shafts, a worm gear is fixedly provided on the surface of the transmission shaft, both sides of the main shaft are respectively meshed with two worm gears through worms, the top of the transmission shaft is connected to the lifting assembly through a screw rod, and the four corners of the bottom end of the base are provided with ground wheels.

[0007] As a preferred technical solution of the utility model, a mounting seat is fixedly provided on one side of the base, a rib plate is fixedly provided on the bottom of the mounting seat, the motor is fixedly connected to the top of the mounting seat, and the output shaft of the motor is connected to one end of the main shaft.

[0008] As a preferred technical solution of the utility model, the lifting assembly includes a lifting platform, two threaded sleeves are fixedly provided on the surface of the lifting platform, the threaded sleeves are threadedly connected to the screw rod, two reinforcement plates are fixedly provided on both sides of the bottom end of the lifting platform, and one side of the reinforcement plate is fixedly connected to one side of the supporting leg.

[0009] As a preferred technical solution of the utility model, two guide rails are fixedly provided on the inner walls on both sides of the base, and a sliding block is fixedly provided on the top of one side of the supporting leg, and the sliding block is slidably connected to the guide rails.

[0010] As a preferred technical solution of the utility model, the reinforcement component includes a support seat, both sides of the top of the support seat are fixed with seat bearings by bolts, the seat bearings are rotatably connected to the middle of the main shaft, and both sides of the bottom end of the support seat are fixed with positioning plates, and the positioning plates are fixedly connected to the inner wall of the bottom end of the base by bolts.

[0011] As a preferred technical solution of the utility model, both ends of the main shaft are rotatably connected to the inner walls on both sides of the base through support bearings, the bottom end of the transmission shaft is rotatably connected to the inner wall of the bottom end of the base through support bearings, the top end of the transmission shaft is fixedly connected to the bottom end of the screw rod, and the top end of the screw rod is rotatably connected to the inner wall of the top end of the base.

[0012] As a preferred technical solution of the utility model, two wear-resistant sleeves are fixedly provided on both sides of the bottom end of the base, the support legs are slidably connected to the wear-resistant sleeves, and anti-slip pads are fixedly provided at the bottom ends of the support legs.

[0013] As a preferred technical solution of the utility model, a door panel is hingedly connected to the surface of the base via a hinge, and a lock core is provided in the middle of one side of the door panel.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The vacuum machine with a quick adjustment mechanism drives the main shaft through a motor. The worm, worm wheel and two lead screws can drive the lifting assembly to rise and fall. Since there are two lead screws, the fulcrum of the lifting assembly can be increased, and the lifting assembly is not easy to tilt. The lifting assembly can drive the supporting legs to rise and fall, and the height of the four supporting legs can be adjusted synchronously without manual operation, which saves manpower, improves the adjustment speed, and is convenient for workers of different heights to operate the vacuum machine body.

[0016] 2. The vacuum machine with a quick adjustment mechanism can increase the fulcrum of the main shaft through the reinforcement components inside the base, which can support the middle part of the main shaft and improve the stability of the main shaft. By lifting the supporting legs and making the bottom end suspended in the air, the ground wheel can be put on the ground, making it easy to move the base through the ground wheel and move the vacuum machine body to the designated location. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure inside the base of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the main shaft of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the lifting assembly of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the reinforcement component of the utility model.

[0022] In the figure: 1. Vacuum machine body; 2. Base; 3. Door panel; 4. Motor; 5. Mounting seat; 6. Rib plate; 7. Ground wheel; 8. Lifting assembly; 801. Lifting platform; 802. Threaded sleeve; 803. Reinforcement plate; 9. Screw; 10. Drive shaft; 11. Worm gear; 12. Support leg; 13. Anti-skid pad; 14. Main shaft; 15. Reinforcement assembly; 1501. Support seat; 1502. Bearing with seat; 1503. Positioning plate; 16. Worm; 17. Guide rail; 18. Wear-resistant sleeve; 19. Slider. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] See also Figures 1 to 5 In the embodiment of the utility model, the vacuum machine with a quick adjustment mechanism includes a vacuum machine body 1 and a base 2. The bottom end of the vacuum machine body 1 is fixedly provided with a base 2. A lifting assembly 8 is provided inside the base 2. A main shaft 14 is provided at the bottom end of the lifting assembly 8. The main shaft 14 is driven by a motor 4 to rotate inside the base 2. A reinforcement assembly 15 is provided in the middle of the main shaft 14. The reinforcement assembly 15 can increase the fulcrum of the main shaft 14 and support the middle of the main shaft 14, thereby improving the stability of the main shaft 14. The base 2 is slidably connected with a support leg 12. The support leg 12 is provided with four legs. The top of the support leg 12 is connected to the lifting assembly 8. The base 2 is connected to the lowering assembly 8, and the base 2 is internally rotatably connected to two transmission shafts 10. A worm gear 11 is fixedly provided on the surface of the transmission shaft 10. Both sides of the main shaft 14 are respectively meshed with the two worm gears 11 through a worm 16. The top of the transmission shaft 10 is connected to the lifting assembly 8 through a screw 9. The main shaft 14 is driven by a motor 4. The worm 16, the worm gear 11, and the screw 9 can drive the lifting assembly 8 to rise and fall, and the height of the four supporting legs 12 can be adjusted at the same time. The four corners at the bottom end of the base 2 are provided with ground wheels 7. By lifting the supporting legs 12 and making the bottom ends thereof suspended in the air, the ground wheels 7 can be made to fall to the ground, so as to facilitate the movement of the base 2 through the ground wheels 7.

[0025] In this embodiment, preferably, a mounting seat 5 is fixedly provided on one side of the base 2, a rib plate 6 is fixedly provided on the bottom of the mounting seat 5, the rib plate 6 can improve the bearing capacity of the base 2, the motor 4 is fixedly connected to the top of the mounting seat 5, the mounting seat 5 can support the motor 4, and the output shaft of the motor 4 is connected to one end of the main shaft 14;

[0026] In this embodiment, preferably, the lifting assembly 8 includes a lifting platform 801, two threaded sleeves 802 are fixedly provided on the surface of the lifting platform 801, the threaded sleeves 802 are threadedly connected to the screw rod 9, two reinforcing plates 803 are fixedly provided on both sides of the bottom end of the lifting platform 801, one side of the reinforcing plate 803 is fixedly connected to one side of the supporting leg 12, and the rotational motion of the screw rod 9 can be converted into the linear motion of the lifting platform 801 through the threaded sleeve 802. By setting two screw rods 9, the fulcrum of the lifting platform 801 is increased, and the lifting platform 801 is not easy to tilt, which can improve its stability;

[0027] In this embodiment, preferably, two guide rails 17 are fixedly provided on the inner walls on both sides of the base 2, and a slider 19 is fixedly provided on the top of one side of the support leg 12. The slider 19 is slidably connected to the guide rail 17. The guide rail 17 and the slider 19 can guide the support leg 12, thereby improving the stability of the support leg 12.

[0028] In this embodiment, preferably, the reinforcement component 15 includes a support seat 1501, and both sides of the top of the support seat 1501 are fixed with seat bearings 1502 by bolts, and the seat bearings 1502 are rotatably connected to the middle part of the main shaft 14. The support seat 1501 can support the middle part of the main shaft 14 through two seat bearings 1502, which increases the fulcrum of the main shaft 14 and improves the stability of the main shaft 14. Positioning plates 1503 are fixedly provided on both sides of the bottom end of the support seat 1501, and the positioning plates 1503 are fixedly connected to the inner wall of the bottom end of the base 2 by bolts, and the support seat 1501 can be installed and disassembled through the positioning plates 1503;

[0029] In this embodiment, preferably, both ends of the main shaft 14 are rotatably connected to the inner walls on both sides of the base 2 through support bearings, the bottom end of the transmission shaft 10 is rotatably connected to the inner wall of the bottom end of the base 2 through support bearings, the top end of the transmission shaft 10 is fixedly connected to the bottom end of the screw rod 9, and the top end of the screw rod 9 is rotatably connected to the inner wall of the top end of the base 2, and the base 2 can provide support for the main shaft 14, the transmission shaft 10 and the screw rod 9;

[0030] In this embodiment, preferably, two wear-resistant sleeves 18 are fixedly provided on both sides of the bottom end of the base 2, and the support leg 12 is slidably connected to the wear-resistant sleeve 18. The wear-resistant sleeve 18 can ensure the vertical movement of the support leg 12 and improve the stability of the support leg 12. The bottom end of the support leg 12 is fixedly provided with an anti-skid pad 13, and the anti-skid pad 13 can improve the anti-skid ability of the bottom end of the support leg 12;

[0031] In this embodiment, preferably, a door panel 3 is hinged on the surface of the base 2 through a hinge, and a lock core is provided in the middle of one side of the door panel 3. The door panel 3 is locked by the lock core, and the door panel 3 can provide protection for the interior of the base 2.

[0032] When in use, when the staff creates a vacuum environment through the vacuum machine body 1, the worm 16 can achieve self-locking of the transmission shaft 10 through the angular friction between the worm 16 and the worm wheel 11, and the height of the vacuum machine body 1 can be maintained. When the staff of different heights need to adjust the height of the vacuum machine body 1, the motor 4 drives the main shaft 14, and the worm 16 on both sides of the main shaft 14 can drive the two screw rods 9 to rotate simultaneously through the worm wheel 11. The two screw rods 9 convert the rotational motion into the linear motion of the lifting platform 801 through the two threaded sleeves 802 of the lifting assembly 8. The lifting platform 801 drives the four supporting legs 12 to rise and fall synchronously, so that the height of the vacuum machine body 1 can be quickly adjusted;

[0033] During the adjustment process, the support seat 1501 can support the middle part of the main shaft 14 through two seat bearings 1502, which increases the fulcrum of the main shaft 14 and improves the stability of the main shaft 14. The slider 19 and the wear-resistant sleeve 18 can guide the support leg 12, which can ensure the stability of the support leg 12 and avoid the tilting and shaking of the support leg 12.

[0034] After use, when the vacuum machine body 1 needs to be moved to a designated location, the staff drives the lifting platform 801 to rise through the motor 4. The lifting platform 801 simultaneously lifts the four supporting legs 12 to retract them. After the bottom ends of the supporting legs 12 are suspended in the air, the ground wheels 7 can be made to touch the ground, and the base 2 can be moved by the ground wheels 7. The staff can quickly move the vacuum machine body 1 to the designated location.

[0035] 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. A vacuum machine with a quick adjustment mechanism, comprising a vacuum machine body (1) and a base (2), characterized in that: A base (2) is fixedly provided at the bottom end of the vacuum machine body (1), a lifting assembly (8) is provided inside the base (2), a main shaft (14) is provided at the bottom end of the lifting assembly (8), and the main shaft (14) is driven by a motor (4) to rotate inside the base (2), a reinforcement assembly (15) is provided in the middle of the main shaft (14), the base (2) is slidably connected to a support leg (12), four support legs (12) are provided, the top of the support leg (12) is connected to the lifting assembly (8), two transmission shafts (10) are rotatably connected inside the base (2), a worm gear (11) is fixedly provided on the surface of the transmission shaft (10), both sides of the main shaft (14) are respectively meshed with the two worm gears (11) through a worm (16), the top of the transmission shaft (10) is connected to the lifting assembly (8) through a screw rod (9), and four corners of the bottom end of the base (2) are provided with ground wheels (7).

2. The vacuum machine with a quick adjustment mechanism according to claim 1, characterized in that: A mounting seat (5) is fixedly provided on one side of the base (2), a rib plate (6) is fixedly provided on the bottom of the mounting seat (5), the motor (4) is fixedly connected to the top end of the mounting seat (5), and the output shaft of the motor (4) is connected to one end of the main shaft (14).

3. The vacuum machine with a quick adjustment mechanism according to claim 1, characterized in that: The lifting assembly (8) comprises a lifting platform (801), two threaded sleeves (802) are fixedly provided on the surface of the lifting platform (801), the threaded sleeves (802) are threadedly connected to the screw rod (9), and two reinforcing plates (803) are fixedly provided on both sides of the bottom end of the lifting platform (801), and one side of the reinforcing plate (803) is fixedly connected to one side of the supporting leg (12).

4. The vacuum machine with a quick adjustment mechanism according to claim 1, characterized in that: Two guide rails (17) are fixedly provided on the inner walls on both sides of the base (2), and a sliding block (19) is fixedly provided on the top of one side of the supporting leg (12), and the sliding block (19) is slidably connected to the guide rail (17).

5. The vacuum machine with a quick adjustment mechanism according to claim 1, characterized in that: The reinforcement assembly (15) comprises a support seat (1501), and bearings (1502) are fixedly provided on both sides of the top of the support seat (1501) by bolts, and the bearings (1502) are rotatably connected to the middle of the main shaft (14), and positioning plates (1503) are fixedly provided on both sides of the bottom end of the support seat (1501), and the positioning plates (1503) are fixedly connected to the inner wall of the bottom end of the base (2) by bolts.

6. The vacuum machine with a quick adjustment mechanism according to claim 1, characterized in that: Both ends of the main shaft (14) are rotatably connected to the inner walls on both sides of the base (2) through support bearings, and the bottom end of the transmission shaft (10) is rotatably connected to the inner wall of the bottom end of the base (2) through support bearings. The top end of the transmission shaft (10) is fixedly connected to the bottom end of the screw rod (9), and the top end of the screw rod (9) is rotatably connected to the inner wall of the top end of the base (2).

7. The vacuum machine with a quick adjustment mechanism according to claim 1, characterized in that: Two wear-resistant sleeves (18) are fixedly provided on both sides of the bottom end of the base (2), the support leg (12) is slidably connected to the wear-resistant sleeve (18), and an anti-slip pad (13) is fixedly provided on the bottom end of the support leg (12).

8. The vacuum machine with a quick adjustment mechanism according to claim 1, characterized in that: A door panel (3) is hingedly connected to the surface of the base (2) via a hinge, and a lock core is provided in the middle of one side of the door panel (3).

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