Locking mechanism of centrifuge switch cover

Abstract

The utility model discloses a locking mechanism of a centrifugal machine switch cover, which comprises a fixed plate, a sliding plate and a motor, the motor is fixedly arranged on the back side of the fixed plate, an eccentric wheel is fixedly arranged on an output shaft of the motor, the sliding plate is arranged on the front side of the sliding plate, one end of the fixed plate is provided with a U-shaped groove, and the other end of the fixed plate is provided with an eccentric wheel. The eccentric wheel is clamped into the U-shaped groove and drives the sliding plate to move in the length direction of the fixed plate, two position sensors are installed on the lower side of the fixed plate in the length direction, a protrusion extending downwards is arranged on the lower side of the sliding plate, and the lower end of the protrusion is located between the two position sensors. And a trigger sensor is mounted on the front side of the end part of the fixed plate. The motor drives the eccentric wheel to rotate, the eccentric wheel drives the sliding plate to move left and right, the centrifugal machine cover can be automatically opened and closed in cooperation with the sensor, and stability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to a locking mechanism for a switch cover of a centrifuge. Background Art

[0002] Centrifuges are common laboratory equipment, mainly used to separate particles from solutions. The machine can separate these media according to their size, shape, density and viscosity. The separation process depends on the rotor speed. Separators are used in research and clinical environments, and are most commonly used in chemistry, biochemistry and molecular biology laboratories. Some of the most common applications include separation, purification and separation of organelles, cells and cell components for further observation by researchers. The locking mechanism is used to lock the lid after closing it. In the prior art, for example, the Chinese utility model patent with publication number CN215917826U discloses a locking mechanism for a full-flip centrifuge, which achieves the compression and locking of the flip cover by rotating the lifting cylinder. However, this protruding locking mechanism set on the front side of the centrifuge not only affects the appearance of the product, but also the action of the rotating lifting cylinder requires compressed gas to drive it. When used, it is bound to require an air distribution system composed of an air machine, a gas tank, a solenoid valve, etc., which has a complex structure and high application cost. Utility Model Content

[0003] The purpose of the utility model is to provide a locking mechanism for a centrifuge switch cover to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a locking mechanism of a centrifuge switch cover comprises a fixed plate, a sliding plate and a motor, the motor is fixedly mounted on the back side of the fixed plate, an eccentric wheel is fixedly mounted on the output shaft of the motor, the sliding plate is located on the front side of the sliding plate, a U-shaped groove is provided at one end of the fixed plate, the eccentric wheel is inserted into the U-shaped groove and drives the sliding plate to move along the length direction of the fixed plate, two position sensors are installed on the lower side of the fixed plate along the length direction, a downwardly extending protrusion is provided on the lower side of the sliding plate, the lower end of the protrusion is located between the two position sensors, and a trigger sensor is installed on the front side of the end of the fixed plate.

[0005] Preferably, a vertical fixing shaft is fixedly installed on the front side of the fixing plate, and the fixing plate is provided with two elongated holes, and the fixing shafts pass through the elongated holes in a one-to-one correspondence.

[0006] Preferably, a shaft sleeve is sleeved on the fixed shaft, and gaskets installed on the fixed shaft are provided on both sides of the shaft sleeve. The shaft sleeve is inserted into the elongated hole and can roll along the elongated hole.

[0007] Compared with the prior art, the utility model has the following beneficial effects: the utility model drives the eccentric wheel to rotate through the motor, and the eccentric wheel drives the sliding plate to move left and right, and cooperates with the sensor to automatically control the opening and closing of the centrifuge cover, and has good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0009] Figure 2 It is a schematic diagram of the main structure of the utility model.

[0010] In the figure: 1. fixed plate; 2. motor; 3. eccentric wheel; 4. sliding plate; 5. U-shaped groove; 6. fixed shaft; 7. bushing; 8. gasket; 9. long hole; 10. position sensor; 11. trigger sensor. DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0012] See also Figure 1-2 The utility model provides a technical solution: a locking mechanism for a centrifuge switch cover, comprising a fixed plate 1, a sliding plate 4 and a motor 2, wherein the motor 2 is fixedly mounted on the back side of the fixed plate 1, an eccentric wheel 3 is fixedly mounted on the output shaft of the motor 2, the sliding plate 4 is located on the front side of the sliding plate 4, and an insert tongue is formed at one end of the sliding plate 4 for inserting into a lock hook on the lower side of the flip cover to achieve locking and fixing.

[0013] A U-shaped groove 5 is provided at one end of the fixed plate 1, and the eccentric wheel 3 is inserted into the U-shaped groove 5 and drives the sliding plate 4 to move along the length direction of the fixed plate 1. A vertical fixed shaft 6 is fixedly installed on the front side of the fixed plate 1. The fixed plate 1 is provided with two long holes 9. The fixed shafts 6 pass through the long holes 9 one by one. A shaft sleeve 7 is sleeved on the fixed shaft 6. Gaskets 8 installed on the fixed shaft 6 are provided on both sides of the shaft sleeve 7. The shaft sleeve 7 is inserted into the long hole 9 and can roll along the long hole 9. The gasket 8 is used to restrict the axial sliding of the shaft sleeve 7.

[0014] Two position sensors 10 are installed on the lower side of the fixed plate 1 along the length direction, and a downwardly extending protrusion is provided on the lower side of the sliding plate 4, and the lower end of the protrusion is located between the two position sensors 10. A trigger sensor 11 is installed on the front side of the end of the fixed plate 1, and the trigger sensor 11 is located at one end of the plug tongue. After the cover is closed, the lock hook presses down the trigger sensor 11 to start the motor 2, driving the sliding plate 4 to move to one side of the lock hook to insert and lock it.

[0015] Working principle: When in use, the locking mechanism is installed on one side of the upper port of the centrifuge. After the upper cover is closed, the lock hook is inserted into the end position of the sliding plate 4, and the trigger sensor 11 is pressed by the lock hook to turn on the motor 2. The motor 2 drives the eccentric wheel 3 to rotate, and the eccentric wheel 3 drives the sliding plate 4 to move toward one end of the lock hook, so that the tongue is inserted into the lock hook to achieve locking. Therefore, the locking mechanism can be automatically locked after the cover is closed.

[0016] 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 locking mechanism for a centrifuge switch cover, comprising a fixed plate (1), a sliding plate (4) and a motor (2), wherein the motor (2) is fixedly mounted on the back side of the fixed plate (1), and is characterized in that: An eccentric wheel (3) is fixedly mounted on the output shaft of the motor (2); the sliding plate (4) is located at the front side of the sliding plate (4); a U-shaped groove (5) is provided at one end of the fixed plate (1); the eccentric wheel (3) is inserted into the U-shaped groove (5) and drives the sliding plate (4) to move along the length direction of the fixed plate (1); two position sensors (10) are installed on the lower side of the fixed plate (1) along the length direction; a protrusion extending downward is provided on the lower side of the sliding plate (4); the lower end of the protrusion is located between the two position sensors (10); and a trigger sensor (11) is installed on the front side of the end of the fixed plate (1).

2. The locking mechanism of the centrifuge switch cover according to claim 1, characterized in that: A vertical fixed shaft (6) is fixedly mounted on the front side of the fixed plate (1), and the fixed plate (1) is provided with two elongated holes (9), through which the fixed shafts (6) pass in a one-to-one correspondence.

3. The locking mechanism of the centrifuge switch cover according to claim 2 is characterized in that: The fixed shaft (6) is sleeved with a shaft sleeve (7), and gaskets (8) mounted on the fixed shaft (6) are provided on both sides of the shaft sleeve (7). The shaft sleeve (7) is inserted into the elongated hole (9) and can roll along the elongated hole (9).

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