An automatic lifting integrated door cover structure

Abstract

This invention belongs to the technical field of refrigerated centrifuge door covers, specifically an automatic lifting integrated door cover structure. Addressing the problem that the weight, volume, and height of existing covers significantly increase labor intensity, the following solution is proposed: A frame is included, with four fixed support legs at the bottom corners. A top cover is hinged to one end of the frame, and an operation panel is fixed to the top of the other end. An installation cavity is located inside the upper part of the frame, with a centrifuge chamber in the center. This invention utilizes an electric push rod to automatically close and open the door cover. Simultaneously, the fan cover moves in tandem with the top cover, achieving automated closing and opening of both covers. This reduces the tediousness of manually removing the fan cover and also mitigates safety risks caused by accidental start-up of the equipment without the fan cover in place.

Description

Technical Field

[0001] This invention relates to the field of refrigerated centrifuge door cover technology, and in particular to an automatic lifting integrated door cover structure. Background Technology

[0002] The centrifuge door, as an important component of the centrifuge, isolates the centrifuge chamber from the external environment and plays a crucial role in protecting samples or rotors from flying out of the chamber in the event of an accident, thus ensuring personal safety. The centrifuge shroud is fixed to the centrifuge rotor and mounted on the motor shaft. The shroud significantly reduces air resistance generated by the horizontal rotor during high-speed rotation, ensuring stable operation of the centrifuge.

[0003] Due to safety considerations, the doors of large-capacity refrigerated centrifuges on the market are relatively heavy and bulky, and the attached horizontal rotor cover also leads to the tedious process of repeated disassembly. Since the doors of large-capacity refrigerated centrifuges on the market are made of metal, their weight, size, and height are all significant. The doors generally use gas springs or spring structures, which prevents the horizontal rotor shroud from being moved along with them. Laboratory users, who handle the centrifuges hundreds of times a day, experience a significant increase in workload due to the weight, size, and height of the cover. Sometimes, damage to the door spring or the excessive weight of the cover can cause injury to fingers or other safety hazards. Therefore, an automatic lifting integrated door cover structure is proposed. Summary of the Invention

[0004] Based on the technical problem that the weight, volume, and height of existing covers greatly increase labor intensity, this invention proposes an automatic lifting integrated door cover structure.

[0005] This invention proposes an automatic lifting integrated door cover structure, including a frame. Support legs are fixedly installed at the four corners of the bottom of the frame. A top cover is rotatably mounted on one end of the frame via a hinge. An operation panel is fixedly installed on the top of the other end of the frame. An installation cavity is provided at the upper part of the frame, and a centrifugal chamber is located in the center of the installation cavity. A horizontal rotor assembly is rotatably mounted inside the centrifugal chamber, and a fan shroud is fixedly installed on the outer side of the bottom of the horizontal rotor assembly. Rectangular openings are provided on both sides of one end of the top of the frame, and locking slots are provided on both sides of the other end of the top of the frame. Fixing ears are fixedly installed on both sides of one end of the bottom of the top cover, and two... A locking hook is fixedly installed on the side, and a mounting base is fixedly installed in the middle of the bottom end of the top cover. A hanging rod is fixedly installed at the bottom end of the mounting base. A fixed cover is sleeved on the bottom end of the hanging rod, and a wind cover is fixedly installed on the bottom circumference of the fixed cover. A convex plate is slidably installed on one end of each side of the bottom end of the mounting cavity, and multiple equally spaced toothed blocks are fixedly arranged on both sides of the top 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 installed on the outer side of each fixed lug, 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 each gear meshes with several toothed blocks at the bottom circumference.

[0006] Preferably, a support rod is fixedly installed at the middle of the top of the horizontal rotor assembly, and a connector is fixedly installed at the top 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 housed inside a rectangular opening, and the two locking hooks match the two locking lugs.

[0009] Preferably, the top and bottom of the inner circumference of the fixing cover are both spherical, the bottom of the fixing cover is an outwardly expanding arc surface, and the bottom of the fixing cover matches the top of the connector.

[0010] Preferably, the bottom end of the boom is provided with a limiting plug, and the limiting plug matches the inner circumference of the fixing cover.

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

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

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

[0014] The beneficial effects of this invention are as follows:

[0015] 1. This invention proposes an automatic lifting integrated door cover structure. A top cover is rotatably mounted on one end of a frame via a hinge. Electric push rods are rotatably mounted on both sides of the bottom end of the top cover. A moving block is rotatably mounted on the bottom end of the electric push rod, and gears are fixedly mounted on both sides of the bottom end of the moving block. Each gear's circumferential bottom end meshes with several toothed blocks on both sides of the top end of a convex plate. When the hydraulic rod extends or retracts, the U-shaped connecting rod moves the convex plate along the bottom of the mounting cavity, thus adjusting the tilt direction and angle of the moving block. When the operator opens the top cover via the control panel, the hydraulic column retracts when the locking hook disengages from the locking jaws, causing the moving block to rotate and support the electric push rod to move upwards, assisting the locking hook in disengaging from the locking jaws, allowing the top cover to re-align with the frame. When one end separates, the fan cover is also about to separate from the fan cover. Then, the electric push rod is activated to extend and fully open the top cover. Since the bottom of the top cover has a mounting base, a hanging rod, and a fixing cover arranged sequentially from top to bottom, the fan cover detaches from the fan cover as the top cover moves. The top of the fan cover is supported by a support block. When the operator closes the top cover through the control panel, the opposite is true. By pushing and retracting the electric push rod, the door cover is automatically closed and opened. At the same time, the fan cover moves with the top cover, achieving automated closing and opening of the two covers in one. This reduces the tediousness of manually removing the fan cover and also reduces the safety risk caused by accidental operation where the fan cover is not in place when starting the equipment.

[0016] 2. The automatic lifting integrated door cover structure proposed in this invention is characterized by a slow descent of the working door cover when closed by an electric push rod. The wind cover slides freely to the joint at the top of the support rod, and the wind cover supports the wind cover in parallel. The wind cover and the upper cover have a space created by the fixed cover, ensuring that the wind cover and the upper cover can contact each other when the wind cover is running at high speed. The wind cover and the wind cover are combined to form a closed space, which reduces noise and rotational resistance when rotating at high speed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an automatic lifting integrated door cover structure proposed in this invention;

[0018] Figure 2 This is a schematic diagram of the structure of the upper cover of an automatic lifting integrated door cover proposed in this invention;

[0019] Figure 3 This is a schematic diagram of the structure of a centrifuge cavity with an integrated automatic lifting door cover proposed in this invention;

[0020] Figure 4 This is a schematic diagram of the installation cavity of an automatic lifting integrated door cover structure proposed in this invention;

[0021] Figure 5 This is a schematic diagram of the U-shaped connecting rod of an automatic lifting integrated door cover structure proposed in this invention;

[0022] Figure 6 This is a schematic diagram of the electric push rod of an automatic lifting integrated door cover structure proposed in this invention;

[0023] Figure 7 This is a schematic diagram of the internal structure of an automatic lifting integrated door cover structure proposed in this invention.

[0024] In the diagram: 1. Frame, 2. Top cover, 3. Control panel, 4. Locking port, 5. Mounting cavity, 6. Centrifugal cavity, 7. Fan hood, 8. Horizontal rotor assembly, 9. Support rod, 10. Connector, 11. Support leg, 12. Rectangular opening, 13. Elastic sleeve, 14. Locking hook, 15. Support block, 16. Fixing ear, 17. Mounting base, 18. Hanging rod, 19. Fixing cover, 20. Fan hood cover, 21. Electric push rod, 22. Convex plate, 23. Hydraulic rod, 24. Sleeve, 25. U-shaped connecting rod, 26. Tooth block, 27. Gear, 28. Moving block, 29. First notch, 30. Second notch. Detailed Implementation

[0025] Reference Figure 1-7 An automatic lifting integrated door cover structure includes a frame 1, with four corner supports 11 fixedly installed at the bottom of the frame 1. A top cover 2 is rotatably mounted on one end of the frame 1 via a hinge. An operation panel 3 is fixedly installed on the top of the other end of the frame 1. An installation cavity 5 is provided at the upper part of the frame 1, and a centrifugal chamber 6 is provided in the middle of the installation cavity 5. A horizontal rotor assembly 8 is rotatably mounted inside the centrifugal chamber 6, and a fan shroud 7 is fixedly installed on the outer side of the bottom 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 locking slots 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 top cover 2, and locking hooks 14 are fixedly installed on both sides of the other end of the top cover 2. 2. A mounting base 17 is fixedly installed at the bottom center, and a hanging rod 18 is fixedly installed at the bottom of the mounting base 17. A fixed cover 19 is sleeved at the bottom of the hanging rod 18, and a wind cover 20 is fixedly installed at the bottom circumference of the fixed cover 19. A convex plate 22 is slidably installed at one end of each side of the bottom of the mounting cavity 5, and multiple equally spaced toothed blocks 26 are fixedly arranged on both sides of the top 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 outside of each fixed ear 16, and a 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 circumference of each gear 27 meshes with several toothed blocks 26.

[0026] In this invention, a support rod 9 is fixedly installed at the middle of the top of the horizontal rotor assembly 8, and a connector 10 is fixedly installed at the top of the support rod 9;

[0027] Two rectangular openings 12 are fixedly connected to the inner walls of their four sides 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.

[0028] Two fixing ears 16 can be stored inside the rectangular opening 12, and two locking hooks 14 match the two locking slots 4;

[0029] The top and bottom of the inner circumference of the fixing cover 19 are both spherical, the bottom of the circumference of the fixing cover 19 is an outwardly expanding arc surface, and the bottom of the fixing cover 19 matches the top of the connector 10.

[0030] A limit plug is provided at the bottom of the lifting rod 18, and the limit plug matches the inner circumference of the fixed cover 19;

[0031] A hydraulic rod 23 is fixedly installed in the middle of the inner wall of one end of the mounting cavity 5, and a sleeve 24 is fixedly installed at the movable end of the hydraulic rod 23. The sleeve 24 is fixedly connected to the U-shaped connecting rod 25 in the middle.

[0032] The electric push rod 21 has a first notch 29 at its movable top end, and the fixed ear 16 is rotatably connected to the first notch 29. The electric push rod 21 has a second notch 30 at its fixed bottom end, and the second notch 30 is rotatably connected to the top end of the moving block 28.

[0033] The bottom of the top cover 2 is fixedly connected to three support blocks 15, and the three support blocks 15 are distributed at equal angles with the hanging rod 18 as the center. The support blocks 15 are made of rubber material.

[0034] Working principle: A top cover 2 is hinged and mounted on one end of the frame 1. Electric push rods 21 are rotatably mounted on both sides of the bottom end of the top cover 2. A movable block 28 is rotatably mounted on the bottom of the electric push rod 21. Gears 27 are fixedly mounted on both sides of the bottom of the movable block 28, and the bottom circumference of each gear 27 meshes with several toothed blocks 26 on both sides of the top of the convex plate 22. When the hydraulic rod 23 extends or retracts, the U-shaped connecting rod 25 moves the convex plate 22 at the bottom of the mounting cavity 5, thus adjusting the tilt direction and angle of the movable block 28. When the operator opens the top cover 2 via the operating screen 3, the hydraulic rod 23 retracts when the locking hook 14 disengages from the locking port 4, causing the movable block 28 to rotate and support the electric push rod 21 to move upwards, assisting the locking hook 14 in disengaging from the locking port 4, thus separating the top cover 2 from the other end of the frame 1. As the fan cover 20 separates from the fan cover 7, the electric push rod 21 is activated to extend and fully open the upper cover 2. Since the upper cover 2 has a mounting base 17, a hanging rod 18, and a fixing cover 19 arranged sequentially from top to bottom in the middle of the bottom, the fan cover 20 separates from the fan cover 7 as the upper cover 2 moves. The top of the fan cover 20 is supported by the support block 15. When the operator closes the upper cover 2 through the operation screen 3, and vice versa, the door cover is automatically closed and opened by pushing and retracting the electric push rod 21. At the same time, the fan cover 20 also works together with the upper cover 2, realizing the automatic closing and opening of the two covers in one, reducing the tediousness of manually taking the fan cover 20. At the same time, it also reduces the safety of starting the equipment without placing the fan cover 20 in case of accidental operation.

[0035] The working door cover closes slowly via the electric push rod 21, and the fan cover 20 slides freely to the connector 10 at the top of the support rod 9. The fan cover 7 supports the fan cover 20 in parallel. The fan cover 20 and the upper cover 2 are separated by the fixed cover 19, ensuring that the fan cover 20 does not come into contact with the upper cover 2 when it is running at high speed. The fan cover 20 and the fan cover 7 are combined to form a closed space, which reduces noise and rotational resistance when rotating at high speed.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic lifting integrated door cover structure, comprising a frame (1), wherein four corner supports (11) are fixedly installed at the bottom of the frame (1), a top cover (2) is rotatably installed at one end of the top of the frame (1) via a hinge, and an operation screen (3) is fixedly installed at the top of the other end of the frame (1), characterized in that, The upper part of the frame (1) is provided with an installation cavity (5), and the middle of the installation cavity (5) is provided with a centrifugal cavity (6). The centrifugal cavity (6) is rotatably provided with a horizontal rotor assembly (8), and a fan cover (7) is fixedly installed on the outer side of the bottom end of the horizontal rotor assembly (8). A rectangular opening (12) is opened on both sides of one end of the top of the frame (1), and a locking opening (4) is opened on both sides of the other end of the top of the frame (1). A fixing ear (16) is fixedly installed on both sides of one end of the bottom of the top cover (2), and a locking hook (14) is fixedly installed on both sides of the other end of the bottom of the top cover (2). A mounting base (17) is fixedly installed in the middle of the bottom of the top cover (2), and a hanging rod (18) is fixedly installed at the bottom of the mounting base (17). A fixing cover (19) is sleeved on the bottom of the hanging rod (18), and a fan cover (20) is fixedly installed on the bottom circumference of the fixing cover (19). The top and bottom of the inner circumference of the fixed cover (19) are both spherical, and its bottom circumference is an outwardly expanding arc surface that matches the top end of the horizontal rotor assembly (8); the bottom of the upper cover (2) is also fixedly connected with three rubber support blocks (15) distributed at equal angles with the hanger (18) as the center, which are used to support the wind cover (20) when the door is opened. A convex plate (22) is slidably installed on one end of the bottom of the mounting cavity (5), and multiple equally spaced tooth blocks (26) are fixedly arranged on both sides of the top 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 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 each gear (27) meshes with several tooth blocks (26). A hydraulic rod (23) is fixedly installed in the middle of the inner wall of one end of the mounting cavity (5), and a sleeve (24) is fixedly installed at the movable end of the hydraulic rod (23). The sleeve (24) is fixedly connected to the U-shaped connecting rod (25) in the middle. When the locking hook (14) disengages from the locking port (4), the hydraulic rod (23) shortens, causing the moving block (28) to rotate and supporting the electric push rod (21) to move upward, thereby assisting the locking hook (14) to disengage from the locking port (4).

2. The automatic lifting integrated door cover structure according to claim 1, characterized in that, A support rod (9) is fixedly installed at the middle of the top of the horizontal rotor assembly (8), and a connector (10) is fixedly installed at the top 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 fixed ears (16) can be housed inside the rectangular opening (12), and the two locking hooks (14) match the two locking holes (4).

5. The automatic lifting integrated door cover structure according to claim 1, characterized in that, The bottom end of the boom (18) is provided with a limit plug, and the limit plug matches the inner circumference of the fixed cover (19).

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

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