Automatic lifting integrated door cover structure

Abstract

The invention belongs to the technical field of refrigerated centrifuge door covers, particularly relates to an automatic lifting integrated door cover structure, and aims to solve the problem that the labor intensity is greatly increased due to main factors in three aspects of weight, size, height and the like of an existing upper cover, the following scheme is provided: the automatic lifting integrated door cover structure comprises a rack, and supporting legs are fixedly mounted at four corners of the bottom end of the rack; an upper cover is rotatably mounted at one end of the top end of the rack through a hinge, an operation screen is fixedly arranged at the other end of the rack, a mounting cavity is formed in the upper end in the rack, and a centrifugal cavity is formed in the middle of the mounting cavity. The door cover is automatically closed and opened through pushing and contracting of the electric push rod, the fan cover also works along with movement of the upper cover at the same time, automatic closing and opening of the two covers are achieved, the complexity of manually taking the fan cover is reduced, and the working efficiency is improved. Meanwhile, the safety caused by the fact that the fan cover cap is not placed and the equipment is started in case of misoperation is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of door covers of refrigerated centrifuges, and in particular to an automatic lifting integrated door cover structure. Background Art

[0002] The door cover device of the centrifuge is an important part of the centrifuge. It can isolate the centrifugal chamber from the external environment and protect the sample or rotor from flying out of the centrifugal chamber when an accident occurs in the centrifuge, playing an important role in protecting personal safety. The centrifuge fan cover and the centrifuge rotor are fixed together and fixed on the motor shaft. The fan cover can greatly reduce the air resistance generated by the horizontal rotor when rotating at high speed, which is an important guarantee for the stable operation of the centrifuge.

[0003] The door covers of large-capacity refrigerated centrifuges on the market are relatively heavy and bulky due to safety considerations, and the attached horizontal rotor cover also brings the tediousness of repeated disassembly. Since the door covers of large-capacity refrigerated centrifuges on the market are made of metal, they are relatively heavy, bulky, and high. The door covers generally use gas springs or spring structures, and the horizontal rotor wind cover cannot be driven together. Laboratory users operate hundreds of times a day, and the labor intensity is greatly increased due to the three main factors of the weight, volume, and height of the upper cover. Sometimes the door cover spring is damaged, and the weight of the door cover is too heavy to press on the fingers or the body of the person. Therefore, an automatic lifting integrated door cover structure is proposed. Summary of the invention

[0004] Based on the technical problem that the labor intensity is greatly increased due to the three main factors of the existing upper cover, namely weight, volume and height, the present invention proposes an automatic lifting integrated door cover structure.

[0005] The present invention proposes an automatic lifting integrated door cover structure, comprising a frame, wherein the four corners of the bottom end of the frame are fixedly installed with supporting feet, an upper cover is rotatably installed at one end of the top end of the frame through a hinge, an operation screen is fixedly arranged at the top end of the other end of the frame, an installation cavity is arranged at the upper end of the interior of the frame, a centrifugal cavity is arranged in the middle of the installation cavity, a horizontal rotor assembly is rotatably arranged inside the centrifugal cavity, and a wind hood is fixedly installed at the outer side of the bottom end of the horizontal rotor assembly, rectangular openings are provided on both sides of one end of the top end of the frame, locking openings are provided on both sides of the other end of the top end of the frame, fixing ears are fixedly installed on both sides of one end of the bottom end of the upper cover, and two locking ears are fixedly installed at the other end of the bottom end of the upper cover. A locking hook is fixedly installed on the side, a mounting seat is fixedly installed in the middle of the bottom end of the upper cover, and a hanging rod is fixedly installed on the bottom end of the mounting seat, a fixed cover is sleeved on the bottom end of the hanging rod, and a wind cover cover is fixedly installed on the bottom end of the fixed cover circle, a convex plate is slidably installed on one end of both sides of the bottom end of the mounting cavity, and a plurality of equidistant tooth blocks are fixedly arranged on both sides of the top end of the convex plate, a U-shaped connecting rod is fixedly connected between the outer walls of one end of the two convex plates, an electric push rod is rotatably arranged on the outside of each of the fixed ears, and a moving block is rotatably installed on the bottom end of the electric push rod, gears are fixedly installed on both sides of the bottom end of the moving block, and the bottom end of the circumference of each gear is meshed with a plurality of tooth blocks.

[0006] Preferably, a support rod is fixedly installed in the middle of the top end of the horizontal rotor assembly, and a docking joint is fixedly installed at the top end of the support rod.

[0007] Preferably, elastic sleeves are fixedly connected between the inner walls of the four sides of the two rectangular openings, and the opening end of the elastic sleeve is slidably sleeved with the movable end of the electric push rod.

[0008] Preferably, the two fixing ears can be received in the rectangular opening, and the two locking hooks match the two locking openings.

[0009] Preferably, the top and the bottom of the inner circumference of the fixed cover are both spherical surfaces, the bottom of the circumference of the fixed cover is an outwardly expanded arc surface, and the bottom of the fixed cover matches the top of the docking head.

[0010] Preferably, a limiting plug is provided at the bottom end of the suspension rod, and the limiting plug matches the circumferential inner wall of the fixed cover.

[0011] Preferably, a hydraulic rod is fixedly installed in the middle of the inner wall at one end of the installation cavity, and a sleeve is fixedly installed at the movable end of the hydraulic rod, and the sleeve is fixedly sleeved in the middle of the U-shaped connecting rod.

[0012] Preferably, a first notch is formed at the movable top end of the electric push rod, and the fixed ear is rotatably connected to the first notch; a second notch is formed at the fixed bottom end of the electric push rod, and the second notch is rotatably connected to the top end of the moving block.

[0013] Preferably, three support blocks are fixedly connected to the bottom end of the upper cover, and the three support blocks are distributed at equal angles with the suspension rod as the center, and the support blocks are made of rubber material.

[0014] The beneficial effects of the present invention are: 1. An automatic lifting integrated door cover structure proposed by the present invention has an upper cover rotatably installed at one end of the top of the frame through a hinge, and electric push rods are rotatably arranged on both sides of one end of the bottom of the upper cover. Since a moving block is rotatably installed at the bottom end of the electric push rod, gears are fixedly installed on both sides of the bottom end of the moving block, and the bottom end of each gear circumference is meshed with a plurality of tooth blocks on both sides of the top end of the convex plate. When the hydraulic rod is extended or shortened, the U-shaped connecting rod can move the convex plate at the bottom end of the installation cavity, so as to achieve the effect of adjusting the tilt direction and angle of the moving block. When the staff opens the upper cover through the operation screen, the hydraulic column shortens when the lock hook is disengaged from the lock mouth, so that the moving block rotates to support the electric push rod to move upward, and the auxiliary lock hook is disengaged from the lock mouth, so that the upper cover and the frame are separated. When one end is separated, the wind hood cover is also about to be separated from the wind hood, and then the electric push rod is started to extend to fully open the upper cover. Since a mounting seat, a suspension rod and a fixed cover are arranged in sequence from top to bottom in the middle of the bottom end of the upper cover, the wind hood cover is separated from the wind hood as the upper cover moves, and the top of the wind hood cover is supported by the support block. When the staff closes the upper cover through the operation screen, vice versa, the door cover is automatically closed and opened by pushing and contracting the electric push rod, and at the same time, the wind hood cover also works together with the movement of the upper cover, realizing the automatic closing and opening of the double covers in one, reducing the tediousness of manually taking the wind hood cover, and at the same time also reducing the safety caused by misoperation when the equipment is started without placing the wind hood cover.

[0015] 2. The present invention proposes an automatic lifting integrated door cover structure, in which the closing of the door cover is slowly lowered through the working of the electric push rod, and the wind hood cover slides freely to the docking joint at the top of the support rod, and the wind hood supports the wind hood cover in parallel. The wind hood cover and the upper cover generate space due to the fixed cover to ensure that they touch the upper cover during high-speed operation, and the wind hood cover and the wind hood are combined together to form a closed space, which reduces noise and rotation resistance during high-speed rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of an automatic lifting integrated door cover structure proposed by the present invention; Figure 2 This is a schematic diagram of the structure of an upper cover of an automatic lifting integrated door cover structure proposed by the present invention; Figure 3 This is a structural schematic diagram of a centrifugal chamber with an automatic lifting integrated door cover structure proposed by the present invention; Figure 4 This is a schematic diagram of the structure of an installation cavity of an automatic lifting integrated door cover structure proposed by the present invention; Figure 5 This is a structural schematic diagram of a U-shaped connecting rod of an automatic lifting integrated door cover structure proposed by the present invention; Figure 6 This is a schematic structural diagram of an electric push rod of an automatic lifting integrated door cover structure proposed by the present invention; Figure 7 This is a schematic diagram of the structure inside a fixed cover of an automatic lifting integrated door cover structure proposed by the present invention.

[0017] In the figure: 1 frame, 2 upper cover, 3 operation screen, 4 lock mouth, 5 installation cavity, 6 centrifugal cavity, 7 wind cover, 8 horizontal rotor assembly, 9 support rod, 10 joint, 11 support foot, 12 rectangular opening, 13 elastic sleeve, 14 lock hook, 15 support block, 16 fixing ear, 17 mounting seat, 18 suspension rod, 19 fixing cover, 20 wind cover cover, 21 electric push rod, 22 convex plate, 23 hydraulic rod, 24 sleeve, 25 U-shaped connecting rod, 26 gear block, 27 gear, 28 moving block, 29 first notch, 30 second notch. DETAILED DESCRIPTION

[0018] Reference Figure 1-7 , an automatic lifting integrated door cover structure, including a frame 1, the four corners of the bottom end of the frame 1 are fixedly installed with supporting feet 11, one end of the top of the frame 1 is rotatably installed with an upper cover 2 through a hinge, the top of the other end of the frame 1 is fixedly installed with an operation screen 3, the upper end of the frame 1 is provided with a mounting cavity 5, and a centrifugal cavity 6 is provided in the middle of the mounting cavity 5, a horizontal rotor assembly 8 is rotatably provided inside the centrifugal cavity 6, and a wind hood 7 is fixedly installed on the outer side of the bottom end of the horizontal rotor assembly 8, rectangular openings 12 are provided on both sides of one end of the top of the frame 1, and locks 4 are provided on both sides of the other end of the top of the frame 1, fixing ears 16 are fixedly installed on both sides of one end of the bottom of the upper cover 2, and locking hooks 14 are fixedly installed on both sides of the other end of the bottom of the upper cover 2, and the upper cover A mounting seat 17 is fixedly installed in the middle of the bottom end, and a suspension rod 18 is fixedly installed at the bottom end of the mounting seat 17, a fixed cover 19 is sleeved at the bottom end of the suspension rod 18, and a wind shield cover 20 is fixedly installed at the bottom end of the fixed cover 19, a convex plate 22 is slidably installed at one end of both sides of the bottom end of the mounting cavity 5, and a plurality of equidistant tooth blocks 26 are fixedly arranged on both sides of the top end of the convex plate 22, a U-shaped connecting rod 25 is fixedly connected between the outer walls of one end of the two convex plates 22, an electric push rod 21 is rotatably arranged on the outer side of each fixed ear 16, and a moving block 28 is rotatably installed at the bottom end of the electric push rod 21, gears 27 are fixedly installed on both sides of the bottom end of the moving block 28, and the bottom end of the circumference of each gear 27 is meshed with a plurality of tooth blocks 26.

[0019] In the present invention, a support rod 9 is fixedly installed in the middle of the top of the horizontal rotor assembly 8, and a docking joint 10 is fixedly installed at the top of the support rod 9; The inner walls of the four sides of the two rectangular openings 12 are fixedly connected with elastic sleeves 13, and the opening end of the elastic sleeve 13 is slidably sleeved with the movable end of the electric push rod 21; The two fixing ears 16 can be received inside the rectangular opening 12, and the two locking hooks 14 match the two locking ports 4; The top and bottom of the inner wall of the fixed cover 19 are both spherical surfaces, the bottom of the fixed cover 19 is an outwardly expanded arc surface, and the bottom of the fixed cover 19 matches the top of the docking head 10; A limit plug is provided at the bottom end of the suspension rod 18, and the limit plug matches the inner wall of the circumference of the fixed cover 19; A hydraulic rod 23 is fixedly installed in the middle of the inner wall at one end of the installation cavity 5, and a sleeve 24 is fixedly installed at the movable end of the hydraulic rod 23, and the sleeve 24 is fixedly sleeved in the middle of the U-shaped connecting rod 25; A first notch 29 is formed at the movable top end of the electric push rod 21, and the fixed ear 16 is rotatably connected to the first notch 29. A second notch 30 is formed at the fixed bottom end of the electric push rod 21, and the second notch 30 is rotatably connected to the top end of the moving block 28. Three support blocks 15 are fixedly connected to the bottom end of the upper cover 2, and the three support blocks 15 are distributed at equal angles with the suspension rod 18 as the center of the circle, and the support blocks 15 are made of rubber material.

[0020] Working principle: The upper cover 2 is installed by hinge rotation at one end of the top of the frame 1, and the electric push rods 21 are rotatably arranged on both sides of one end of the bottom of the upper cover 2. Since the moving block 28 is rotatably installed at the bottom of the electric push rod 21, gears 27 are fixedly installed on both sides of the bottom of the moving block 28, and the bottom of the circumference of each gear 27 is meshed with a number of tooth blocks 26 on both sides of the top of the convex plate 22. When the hydraulic rod 23 is extended or shortened, the U-shaped connecting rod 25 can move the convex plate 22 at the bottom of the installation cavity 5, so as to achieve the effect of adjusting the tilt direction and angle of the moving block 28. When the staff opens the upper cover 2 through the operation screen 3, the hydraulic column 23 shortens when the lock hook 14 is disengaged from the lock mouth 4, so that the moving block 28 rotates to support the electric push rod 21 to move upward, and the auxiliary lock hook 14 is disengaged from the lock mouth 4, so that the upper cover 2 is separated from the other end of the frame 1. The wind shield cover 20 is about to be separated from the wind shield 7, and the electric push rod 21 is started to extend to fully open the upper cover 2. Since the mounting seat 17, the suspension rod 18 and the fixed cover 19 are sequentially arranged in the middle of the bottom end of the upper cover 2 from top to bottom, the wind shield cover 20 is separated from the wind shield 7 as the upper cover 2 moves, and the top of the wind shield cover 20 is supported by the support block 15. When the staff closes the upper cover 2 through the operation screen 3, the door cover is automatically closed and opened by the push and contraction of the electric push rod 21. At the same time, the wind shield cover 20 also works together with the movement of the upper cover 2, realizing the automatic closing and opening of the double covers, reducing the tediousness of manually taking the wind shield cover 20, and at the same time also reducing the safety caused by the misoperation of starting the equipment without placing the wind shield cover 20. The closing of the working door cover by the electric push rod 21 is a slow drop, and the wind hood cover 20 slides freely to the docking joint 10 at the top of the support rod 9, and the wind hood 7 supports the wind hood cover 20 in parallel. The wind hood cover 20 and the upper cover 2 have a space due to the fixed cover 19, ensuring that it touches the upper cover 2 during high-speed operation. The wind hood cover 20 and the wind hood 7 are combined together to form a closed space, that is, reducing noise and rotation resistance during high-speed rotation.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic lifting integrated door cover structure, comprising a frame (1), wherein the four corners of the bottom end of the frame (1) are fixedly mounted with supporting feet (11), an upper cover (2) is rotatably mounted on one end of the top end of the frame (1) through a hinge, and an operating screen (3) is fixedly arranged on the top end of the other end of the frame (1), characterized in that: The upper end of the frame (1) is provided with a mounting cavity (5), and a centrifugal cavity (6) is provided in the middle of the mounting cavity (5). A horizontal rotor assembly (8) is rotatably provided in the centrifugal cavity (6), and a wind shield (7) is fixedly installed on the outer side of the bottom end of the horizontal rotor assembly (8). A rectangular opening (12) is provided on both sides of one end of the top of the frame (1), and a locking opening (4) is provided on both sides of the other end of the top of the frame (1). Fixing ears (16) are fixedly installed on both sides of one end of the bottom of the upper cover (2), and locking hooks (14) are fixedly installed on both sides of the other end of the bottom of the upper cover (2). A mounting seat (17) is fixedly installed in the middle of the bottom of the upper cover (2), and a suspension rod (18) is fixedly installed at the bottom of the mounting seat (17). The suspension rod (18) is fixedly installed at the bottom of the mounting seat (17). A fixed cover (19) is sleeved on the bottom end of the rod (18), and a wind cover cover (20) is fixedly installed on the circumferential bottom end of the fixed cover (19); a convex plate (22) is slidably installed on one end of both sides of the bottom end of the installation cavity (5), and a plurality of equidistant tooth blocks (26) are fixedly installed on both sides of the top end of the convex plate (22); a U-shaped connecting rod (25) is fixedly connected between the outer walls of one end of the two convex plates (22); an electric push rod (21) is rotatably installed on the outer side of each of the fixed ears (16), and a moving block (28) is rotatably installed on the bottom end of the electric push rod (21); gears (27) are fixedly installed on both sides of the bottom end of the moving block (28), and the circumferential bottom end of each gear (27) is meshed with a plurality of tooth blocks (26).

2. The automatic lifting integrated door cover structure according to claim 1, characterized in that: A support rod (9) is fixedly mounted in the middle of the top end of the horizontal rotor assembly (8), and a docking joint (10) is fixedly mounted on the top end of the support rod (9).

3. The automatic lifting integrated door cover structure according to claim 1, characterized in that: An elastic sleeve (13) is fixedly connected between the inner walls of the four sides of the two rectangular openings (12), and the opening end of the elastic sleeve (13) is slidably sleeved with the movable end of the electric push rod (21).

4. The automatic lifting integrated door cover structure according to claim 1, characterized in that: The two fixing ears (16) can be received inside the rectangular opening (12), and the two locking hooks (14) match the two locking openings (4).

5. The automatic lifting integrated door cover structure according to claim 2, characterized in that: The top and bottom ends of the inner circumferential wall of the fixed cover (19) are both spherical surfaces, the bottom end of the circumferential wall of the fixed cover (19) is an outwardly expanded arc surface, and the bottom end of the fixed cover (19) matches the top end of the docking joint (10).

6. The automatic lifting integrated door cover structure according to claim 5, characterized in that: A limit plug is provided at the bottom end of the suspension rod (18), and the limit plug matches the circumferential inner wall of the fixed cover (19).

7. The automatic lifting integrated door cover structure according to claim 1, characterized in that: A hydraulic rod (23) is fixedly mounted in the middle of the inner wall at one end of the installation cavity (5), and a sleeve (24) is fixedly mounted on the movable end of the hydraulic rod (23), and the sleeve (24) is fixedly sleeved in the middle of the U-shaped connecting rod (25).

8. The automatic lifting integrated door cover structure according to claim 1, characterized in that: The movable top end of the electric push rod (21) is provided with a first notch (29), and the fixed ear (16) is rotatably connected to the first notch (29); the fixed bottom end of the electric push rod (21) is provided with a second notch (30), and the second notch (30) is rotatably connected to the top end of the moving block (28).

9. The automatic lifting integrated door cover structure according to claim 1, characterized in that: Three support blocks (15) are fixedly connected to the bottom end of the upper cover (2), and the three support blocks (15) are distributed at equal angles with the suspension rod (18) as the center of the circle, and the support blocks (15) are made of rubber material.

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