CN216094299U

CN216094299U - Centrifuge with overload protection function

Info

Publication number: CN216094299U
Application number: CN202122150418.9U
Authority: CN
Inventors: 覃宣富; 陈本煊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-03-22
Anticipated expiration: 2031-09-07

Abstract

The utility model discloses a centrifuge with an overload protection function, which comprises a centrifuge body, wherein a protection door is arranged at the top of the centrifuge body, and a placing container is arranged in the centrifuge body. According to the utility model, the motor is arranged for driving the placing container to rotate, so that the reagent in the placing container is subjected to centrifugal operation, the placing container can drive the connecting block and the mounting cylinder to rotate together when rotating, the connecting block can drive the lug to move towards two sides under the action of centrifugal force, the generated centrifugal force is stronger when the rotating speed is higher, the distance of the lug moving towards two sides is larger, and the generated centrifugal force can enable the lug to touch the toggle switch when the rotating speed of the placing container exceeds the overload rotating speed, so that the problems that the existing centrifugal machine does not have the function of rotating speed overload protection, the centrifugal operation effect is poor and the centrifugal machine is damaged when the rotating speed of the centrifugal machine is too high are solved.

Description

Centrifuge with overload protection function

Technical Field

The utility model relates to the technical field of centrifuges, in particular to a centrifuge with an overload protection function.

Background

Centrifuges are machines that separate components of a liquid from solid particles or a mixture of liquids and liquids by centrifugal force, and are mainly used to separate solid particles from a liquid in a suspension, or two liquids that are different in density and are immiscible with each other in an emulsion (e.g., to separate cream from milk), and to remove liquids from wet solids, such as by spin-drying wet clothes in a washing machine; the special overspeed tubular separator can also separate gas mixtures with different densities; the characteristics that solid particles with different densities or particle sizes have different settling rates in liquid are utilized, some settling centrifuges can also grade the solid particles according to the densities or the particle sizes, the existing centrifuges do not have the function of rotating speed overload protection, when the rotating speed of the centrifuges is too large, the centrifugal operation effect is poor, and meanwhile, the damage can be caused to the centrifuges.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a centrifugal machine with an overload protection function, which has the advantage of rotating speed overload protection and solves the problems that the existing centrifugal machine does not have the rotating speed overload protection function, the centrifugal operation effect is poor when the rotating speed of the centrifugal machine is too high, and the centrifugal machine can be damaged.

In order to achieve the purpose, the utility model provides the following technical scheme: a centrifugal machine with an overload protection function comprises a centrifugal machine body, wherein a protective door is arranged at the top of the centrifugal machine body, a placing container is arranged inside the centrifugal machine body, a motor is fixedly arranged at the bottom of an inner cavity of the centrifugal machine body, the output end of the motor is fixedly connected with the bottom of the placing container, a toggle switch is fixedly arranged at the right side of the inner cavity of the centrifugal machine body, a lead is arranged inside the centrifugal machine body, the toggle switch is electrically connected with the motor through the lead, connecting blocks are fixedly arranged at two sides of the bottom of the placing container, a mounting cylinder is fixedly arranged at the bottom of the connecting blocks, a spring is arranged inside the mounting cylinder, a movable plate is fixedly arranged at one side, away from the spring, is positioned inside the mounting cylinder and is in sliding connection with the mounting cylinder, and a connecting rod is fixedly arranged at one side, away from the movable plate, the other side of the connecting rod extends to the outside of the mounting cylinder and is fixedly provided with a lug.

Preferably, a handle is fixedly mounted on the right side of the top of the protective door, and an anti-slip sleeve is arranged on the surface of the handle.

Preferably, the inside of guard gate is provided with the observation window, the avris of observation window is provided with the sealing strip.

Preferably, both sides of placing the container are all fixedly mounted with a side lever, one side of the side lever which is relatively far away from is fixedly mounted with two mounting plates, and a pulley is arranged between the mounting plates.

Preferably, the two sides of the inner cavity of the centrifuge body are both provided with a limiting groove, and the pulley is located inside the limiting groove and is in sliding connection with the limiting groove.

Preferably, the top and the bottom of the inner cavity of the installation barrel are fixedly provided with limit blocks, and the limit blocks are positioned on one side of the movable plate which is relatively far away from the movable plate.

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

1. the utility model is provided with the motor for driving the placing container to rotate, and further carrying out centrifugal operation on the reagent in the placing container, the placing container can drive the connecting block and the mounting cylinder to rotate together when rotating, the connecting block can drive the lug to move towards two sides under the action of centrifugal force, when the rotating speed is higher, the generated centrifugal force is stronger, the distance of the lug moving towards two sides is larger, when the rotating speed of the placing container exceeds the overload rotating speed, the generated centrifugal force can enable the lug to touch the toggle switch to close the toggle switch, and then the toggle switch cuts off the power supply, so that the motor stops working, the rotating speed of the placing container is reduced, thereby achieving the purpose of overload protection of the rotating speed of the placing container, simultaneously solving the problem that the existing centrifugal machine does not have the function of overload protection of the rotating speed, and when the rotating speed of the centrifugal machine is too high, the centrifugal operation effect is poor, and damage to the centrifuge.

2. According to the utility model, the protective door can be conveniently opened and closed by arranging the handle, so that a reagent can be conveniently placed in the placing container for centrifugal operation, the condition in the centrifuge body can be conveniently observed by arranging the observation window, the side lever is limited by arranging the pulley and the limiting groove in a mutually matched manner, the side lever is prevented from being deviated, the placing container is limited, the movable plate is limited by arranging the limiting block, and the movable plate is prevented from being separated from the inside of the mounting cylinder under the action of centrifugal force under the condition that the placing container rotates.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic cross-sectional view of the mounting cylinder of the present invention;

fig. 4 is a partial enlarged view of the utility model at a in fig. 2.

In the figure: 1. a centrifuge body; 2. a protective door; 3. a handle; 4. an observation window; 5. placing the container; 6. a motor; 7. a side lever; 8. mounting a plate; 9. a pulley; 10. a limiting groove; 11. connecting blocks; 12. mounting the cylinder; 13. a toggle switch; 14. a wire; 15. a spring; 16. a movable plate; 17. a connecting rod; 18. a limiting block; 19. and (4) a bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-4, a centrifuge with overload protection function includes a centrifuge body 1, a protective door 2 is disposed on the top of the centrifuge body 1, a container 5 is disposed inside the centrifuge body 1, a motor 6 is fixedly mounted at the bottom of the inner cavity of the centrifuge body 1, the output end of the motor 6 is fixedly connected with the bottom of the container 5, a toggle switch 13 is fixedly mounted on the right side of the inner cavity of the centrifuge body 1, a wire 14 is disposed inside the centrifuge body 1, the toggle switch 13 and the motor 6 are electrically connected through the wire 14, connecting blocks 11 are fixedly mounted on both sides of the bottom of the container 5, a mounting cylinder 12 is fixedly mounted at the bottom of the connecting blocks 11, a spring 15 is disposed inside the mounting cylinder 12, a movable plate 16 is fixedly mounted on the side of the spring 15 opposite to the movable plate, the movable plate 16 is located inside the mounting cylinder 12 and is slidably connected with the mounting cylinder 12, a connecting rod 17 is fixedly installed on one side of the movable plate 16, which is relatively far away from the movable plate, the other side of the connecting rod 17 extends to the outside of the mounting cylinder 12 and is fixedly installed with a lug 19, the motor 6 is arranged for driving the placing container 5 to rotate, so as to perform centrifugal operation on a reagent placed in the container 5, the rotating of the placing container 5 can drive the connecting block 11 and the mounting cylinder 12 to rotate together, under the action of centrifugal force, the connecting rod 17 can drive the lug 19 to move towards two sides, when the rotating speed is higher, the generated centrifugal force is stronger, the distance of the lug 19 moving towards two sides is larger, when the rotating speed of the placing container 5 exceeds the overload rotating speed, the generated centrifugal force can enable the lug 19 to touch the toggle switch 13, the toggle switch 13 is closed, and the toggle switch 13 cuts off the power supply, so that the motor 6 stops working, the rotating speed of the placing container 5 is reduced, and the purpose of overload protection of the rotating speed of the placing container 5 is achieved, the right side of the top of the protective door 2 is fixedly provided with a handle 3, the surface of the handle 3 is provided with an anti-skid sleeve, the protective door 2 is convenient to open and close by arranging the handle 3, so that a reagent is convenient to place in a container 5 for centrifugal operation, the protective door 2 is internally provided with an observation window 4, the side of the observation window 4 is provided with a sealing strip, the observation window 4 is convenient to observe the condition of the interior of the centrifuge body 1, both sides for placing the container 5 are fixedly provided with side rods 7, the side, far away from the side rods 7, are fixedly provided with two mounting plates 8, a pulley 9 is arranged between the two mounting plates 8, both sides of the inner cavity of the centrifuge body 1 are provided with limiting grooves 10, the pulley 9 is positioned in the limiting grooves 10 and is in sliding connection with the limiting grooves 10, the pulley 9 and the limiting grooves 10 are mutually matched for limiting the side rods 7, so as to prevent the side rods 7 from deviating, and then played spacing effect to placing container 5, the equal fixed mounting in top and the bottom of installation section of thick bamboo 12 inner chamber has stopper 18, and stopper 18 is located the one side that the fly leaf 16 kept away from relatively, is used for spacing fly leaf 16 through setting up stopper 18, prevents to place container 5 pivoted condition under the effect of centrifugal force, leads to fly leaf 16 to break away from the inside of installation section of thick bamboo 12.

During the use, place container 5 through the drive of motor 6 and rotate, and then carry out centrifugal operation to placing the inside reagent of container 5, it can drive connecting block 11 and installation section of thick bamboo 12 and rotate together to place container 5 to rotate, under the effect of centrifugal force, connecting rod 17 can drive lug 19 and remove to both sides, it is big more to work as the rotational speed, the centrifugal force of production is stronger, make the distance that lug 19 removed to both sides big more, when the rotational speed of placing container 5 surpassed overload rotational speed, the centrifugal force of production can make lug 19 touch toggle switch 13, will toggle switch 13 and close, and then toggle switch 13 cuts off the power supply, make motor 6 stop work, the rotational speed of placing container 5 descends, thereby reach the purpose to placing container 5 rotational speed overload protection.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A centrifuge with overload protection function, includes centrifuge body (1), its characterized in that: the top of the centrifuge body (1) is provided with a protective door (2), the interior of the centrifuge body (1) is provided with a placement container (5), the bottom of the inner cavity of the centrifuge body (1) is fixedly provided with a motor (6), the output end of the motor (6) is fixedly connected with the bottom of the placement container (5), the right side of the inner cavity of the centrifuge body (1) is fixedly provided with a toggle switch (13), the interior of the centrifuge body (1) is provided with a lead (14), the toggle switch (13) is electrically connected with the motor (6) through the lead (14), two sides of the bottom of the placement container (5) are fixedly provided with connecting blocks (11), the bottom of the connecting blocks (11) is fixedly provided with an installation cylinder (12), the interior of the installation cylinder (12) is provided with a spring (15), one side of the spring (15) which is relatively far away from is fixedly provided with a movable plate (16), the movable plate (16) is located inside the installation cylinder (12) and is in sliding connection with the installation cylinder (12), a connecting rod (17) is fixedly installed on one side, away from the movable plate (16), of the movable plate, and the other side of the connecting rod (17) extends to the outside of the installation cylinder (12) and is fixedly provided with a convex block (19).

2. The centrifuge with the overload protection function according to claim 1, wherein: the right side of guard gate (2) top fixed mounting has handle (3), the surface of handle (3) is provided with anti-skidding cover.

3. The centrifuge with the overload protection function according to claim 1, wherein: the inside of guard gate (2) is provided with observation window (4), the avris of observation window (4) is provided with the sealing strip.

4. The centrifuge with the overload protection function according to claim 1, wherein: the equal fixed mounting in both sides of placing container (5) has side lever (7), one side fixed mounting that side lever (7) kept away from relatively has two mounting panels (8), two be provided with pulley (9) between mounting panel (8).

5. The centrifuge with the overload protection function according to claim 4, wherein: limiting grooves (10) are formed in two sides of an inner cavity of the centrifuge body (1), and the pulley (9) is located in the limiting grooves (10) and is in sliding connection with the limiting grooves (10).

6. The centrifuge with the overload protection function according to claim 1, wherein: the top and the bottom of the inner cavity of the mounting cylinder (12) are both fixedly provided with a limiting block (18), and the limiting block (18) is positioned on one side of the movable plate (16) which is relatively far away.