CN211887451U

CN211887451U - Centrifugal machine

Info

Publication number: CN211887451U
Application number: CN202020176172.5U
Authority: CN
Inventors: 罗深恒; 朱冬明; 廖秀珍
Original assignee: Guangzhou Koalson Biotechnology Co ltd
Current assignee: Guangzhou Koalson Biotechnology Co ltd
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2020-11-10
Anticipated expiration: 2030-02-17

Abstract

The utility model discloses a centrifuge, it belongs to centrifuge technical field. The device comprises an operation device, a rotor, a cover body assembly, a driving mechanism and a limiting mechanism. The operation device is provided with a centrifugal cavity, the rotor is rotationally arranged in the centrifugal cavity, a plurality of accommodating grooves are formed in the rotor, and a hanging basket is hung in each accommodating groove to accommodate a sample to be centrifuged; the cover body assembly is arranged on the operation device, covers the opening of the centrifugal cavity and has an opening state and a closing state, and the cover body assembly is opened with a taking and placing opening in the opening state, wherein the size of the taking and placing opening is not smaller than the size of the cross section of one accommodating groove; the driving mechanism can drive the cover body assembly to be switched between an opening state and a closing state; the limiting mechanism comprises a gear and a limiting rack, a limiting groove is formed in the cover body assembly, and the gear can drive the limiting rack to move so that the limiting rack is connected with or separated from the limiting groove in a clamped mode. The cover body assembly of the centrifuge can be automatically opened and closed, the locking mode is firm, and the use is convenient and safe.

Description

Centrifugal machine

Technical Field

The utility model relates to a centrifuge technical field especially relates to a centrifuge.

Background

A centrifuge is an apparatus for separating components having different specific gravities from a mixture by centrifugal force. The centrifugal machine comprises a centrifugal cavity and a door cover for closing an opening of the centrifugal cavity, a door lock is usually arranged to lock the door cover and the centrifugal cavity, the door is opened and locked by adopting a manual pushing mode, and the operation is complex and inconvenient. In addition, when the centrifuge breaks down, the rotor may impact the door cover to unlock the door lock, so that the rotor flies out, and potential safety hazards exist.

In order to avoid the situation, the centrifugal machine with the door cover automatically opened and closed and locked in the prior art has the advantages that the door cover is of a double-layer structure, the upper layer is fixed with the body of the centrifugal machine, the upper layer is provided with the opening, the lower layer can rotate and is provided with the hole which is consistent with the shape and the size of the opening, and when the lower layer rotates to the state that the opening is overlapped with the hole, the opening is in an opening state. Wherein the lower layer is locked at a desired position by means of an electromagnetic door lock. Aiming at the locking mode of the door cover, when a circuit fault exists, the electromagnet fails, the lower layer of the door cover cannot be locked, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a centrifuge to the problem that the electromagnetic lock of door closure easily became invalid when solving centrifuge's circuit fault, make the lock solid state of door closure stable, thereby guaranteed the safety of equipment operation in-process.

As the conception, the utility model adopts the technical proposal that:

a centrifuge, comprising:

the working device is provided with a centrifugal cavity;

the rotor is rotationally arranged in the centrifugal cavity, a plurality of accommodating grooves are formed in the rotor, a hanging basket is hung in each accommodating groove, and the hanging basket is used for accommodating a sample to be centrifuged;

the cover body assembly is arranged on the operation device, covers the opening of the centrifugal cavity and has an opening state and a closing state, a taking and placing opening is formed in the opening state of the cover body assembly, and the size of the taking and placing opening is not smaller than the size of the cross section of one accommodating groove;

the driving mechanism can drive the cover body assembly to switch between the opening state and the closing state;

the limiting mechanism comprises a gear and a limiting rack, the gear is fixedly arranged relative to the operation device, a limiting groove is formed in the cover body assembly, and the gear can drive the limiting rack to move so that the limiting rack is connected with or separated from the limiting groove in a clamped mode.

Optionally, the cover assembly includes a fixed disk and a rotating disk coaxially disposed, the fixed disk is fixedly connected to the working device, the fixed disk covers the opening of the centrifugal chamber, the rotating disk is rotatably connected to the inner side of the fixed disk, the fixed disk is provided with a first opening, the rotating disk is provided with a second opening, and the first opening and the second opening form the pick-and-place opening when they coincide with each other.

Optionally, the driving mechanism includes a driving gear, and a gear ring is provided on the circumference of the rotating disk, and the gear ring is engaged with the driving gear.

Optionally, the edge of the gear ring is provided with the limiting groove, and the limiting rack can be clamped into the limiting groove.

Optionally, the number of the limiting grooves is two, the limiting grooves are divided into a first limiting groove and a second limiting groove, the cover body assembly is in the opening state, the limiting rack can be clamped into the first limiting groove, and the cover body assembly is in the closing state, the limiting rack can be clamped into the second limiting groove.

Optionally, the length of the ring of the gear ring is smaller than the circumference of the rotating disk, the first limiting groove is formed in one end of the gear ring, and the second limiting groove is formed in the other end of the gear ring.

Optionally, the driving mechanism further comprises a driving motor, the driving motor is arranged on the working device, the driving gear is connected to the output end of the driving motor, and the driving motor can drive the rotating disc to rotate through the driving gear.

Optionally, the limiting mechanism further comprises a motor, the motor is arranged on the operation device, and the gear is connected to the output end of the motor.

Optionally, the number of the accommodating grooves is two, and the two accommodating grooves are symmetrically arranged on the rotor.

Optionally, a box body is arranged on the outer side of the operation device, one side, close to the taking and placing opening, of the box body is provided, and the driving mechanism and the limiting mechanism are both arranged on the box body.

The utility model has the advantages that:

the utility model provides a centrifuge, lid subassembly cover centrifugal cavity's opening has the open mode and the closed condition, and actuating mechanism can drive the lid subassembly and switch between open mode and closed condition, realizes opening automatically or closes and get the mouth of putting. The cover body assembly is provided with a limiting groove, the limiting mechanism comprises a gear and a limiting rack, and the gear can drive the limiting rack to move so that the limiting rack is connected with or separated from the limiting groove. When the cover body assembly is in a closed state or an open state, the limiting rack is clamped in the limiting groove to lock the cover body assembly, so that the locking of the state is ensured, and the equipment is safer and more reliable to use.

Drawings

Fig. 1 is a schematic structural diagram of a centrifuge provided by an embodiment of the present invention;

fig. 2 is a top view of a centrifuge provided by an embodiment of the present invention;

fig. 3 is a side view of a centrifuge provided by an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

fig. 5 is a schematic structural diagram of a partial structure of the centrifuge provided in this embodiment.

In the figure:

1. a working device; 2. a rotor; 3. a cover assembly; 4. a box body; 5. a hanging basket;

30. a taking and placing port; 31. fixing the disc; 32. rotating the disc; 33. a ring gear; 34. a rotating shaft; 41. a drive gear; 51. a gear; 52. a limit rack;

331. a first limit groove; 332. a second limit groove.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly but via another feature. Also, the first feature "over," "above," and "on" the second feature includes the first feature being directly over and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature "under," "below," and "beneath" a second feature includes a first feature that is directly under and obliquely below the second feature, or simply means that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The present embodiment provides a centrifuge, as shown in fig. 1 to 5, which includes an operation device 1, a rotor 2, a cover assembly 3, a driving mechanism and a limiting mechanism. The operation device 1 is provided with a centrifugal cavity, the rotor 2 is rotatably arranged in the centrifugal cavity, a plurality of accommodating grooves are formed in the rotor 2, a hanging basket 5 is hung in each accommodating groove, and the hanging basket 5 is used for accommodating a sample to be centrifuged; the cover body assembly 3 is arranged on the operation device 1, covers the opening of the centrifugal cavity, and has an opening state and a closing state, the cover body assembly 3 is opened with a taking and placing opening 30 in the opening state, and the size of the taking and placing opening 30 is not smaller than the cross section size of one accommodating groove; the driving mechanism can drive the cover body assembly 3 to switch between an opening state and a closing state; the limiting mechanism comprises a gear 51 and a limiting rack 52, the gear 51 is fixedly arranged relative to the operation device 1, a limiting groove is formed in the cover body assembly 3, and the gear 51 can drive the limiting rack 52 to move so that the limiting rack 52 is clamped with or separated from the limiting groove. By providing the driving mechanism, the cover assembly 3 can be automatically opened or closed. The limiting rack 52 is clamped in the limiting groove to realize locking of the cover plate component 3. The centrifuge that this embodiment provided, lid subassembly 3 can automatic switching, and the locking mode is firm, convenient to use, safety.

Further, the cover assembly 3 includes a fixed disk 31 and a rotating disk 32 coaxially disposed, the fixed disk 31 is fixedly connected to the operation device 1, the fixed disk 31 covers the opening of the centrifugal chamber, the rotating disk 32 is rotatably connected to the inner side of the fixed disk 31, a first opening is disposed on the fixed disk 31, a second opening is disposed on the rotating disk 32, and the first opening and the second opening form a pick-and-place opening 30 when they are overlapped. The rotating disk 32 rotates relative to the fixed disk 31, and correspondingly, the second opening rotates relative to the first opening, so that the first opening and the second opening can be overlapped or separated, and the opening or the closing of the taking and placing opening 30 is realized. In the present embodiment, a rotating shaft 34 and a bearing seat supporting the rotating shaft 34 are disposed at the center of the fixed disk 31, and the rotating disk 32 is rotatably connected to the fixed disk 31 through the rotating shaft 34.

As shown in fig. 5, the driving mechanism includes a driving gear 41, a gear ring 33 is provided on the circumference of the rotating disk 32, and the gear ring 33 is engaged with the driving gear 41, so that the driving gear 41 rotates to rotate the rotating disk 32.

Furthermore, the edge of the gear ring 33 is provided with a limit groove, and the limit rack 52 can be clamped into the limit groove, so that when the rotating disc 32 rotates to the open state or the closed state of the pick-and-place port 30, the rotating disc 32 is locked to fix the state, thereby ensuring the safety of the equipment.

Further, the number of the limiting grooves is two, and the limiting grooves are divided into a first limiting groove 331 and a second limiting groove 332, when the cover assembly 3 is in the open state, the limiting rack 52 can be clamped into the first limiting groove 331, and when the cover assembly 3 is in the closed state, the limiting rack 52 can be clamped into the second limiting groove 332. In this embodiment, the first position-limiting groove 331 is disposed near the second opening on the circumference of the rotating disk 32, and the second position-limiting groove 332 is disposed near a position symmetrical to the first position-limiting groove 331.

Further, the ring length of the gear ring 33 is smaller than the circumference of the rotating disk 32, one end of the gear ring 33 is provided with a first limit groove 331, and the other end of the gear ring 33 is provided with a second limit groove 332. The range of rotation is within the range of the circumferential length of the ring gear 33, enabling quick positioning and locking of the second opening.

Further, the driving mechanism further includes a driving motor, the driving motor is disposed on the working device 1, the driving gear 41 is connected to an output end of the driving motor, and the driving motor can drive the rotating disk 32 to rotate through the driving gear 41. When the driving motor is operated, the driving gear 41 rotates, and the driving gear 41 rotates the rotating disk 32 by meshing with the ring gear 33.

Further, the limiting mechanism further comprises a motor, the motor is arranged on the operation device 1, and the gear 51 is connected to the output end of the motor. When the motor runs, the gear 51 is driven to rotate, and the gear 51 rotates to drive the limiting rack 52 meshed with the gear to do linear motion so as to be separated from or clamped into the limiting groove, so that the rotating disc 32 is locked.

In this embodiment, as shown in fig. 4, the number of the receiving grooves is preferably two, and the two receiving grooves are symmetrically disposed on the rotor 2. Correspondingly, the length of the gear ring 33 is preferably slightly greater than the circumference 1/2 of the rotating disk 32, the first limit groove 331 is provided on the gear ring 33 near the second opening, and the second limit groove 332 is provided on the gear ring 33 far from the second opening.

Optionally, a box 4 is disposed outside the working device 1, one side of the box 4 close to the pick-and-place port 30 is disposed, and the driving mechanism and the limiting mechanism are both disposed on the box 4. The box body 4 enables the positions of all mechanisms to be compact and the arrangement to be reasonable. In the present embodiment, the gear 51 and the driving gear 41 are both mounted on the upper end surface of the housing 4, and the motor and the driving motor are mounted inside the housing 4.

The process of opening and closing the door of the centrifuge is as follows: the door opening key is pressed, under the drive of the motor and the driving motor, the gear 51 rotates and drives the limiting rack 52 to do linear motion so as to be separated from the second limiting groove 332, the driving gear 41 drives the rotating disc 32 to rotate until the first limiting groove 331 is opposite to the limiting rack 52, at the moment, the first opening is opposite to the second opening to form a taking and placing opening 30, the limiting rack 52 makes linear motion so as to be clamped into the first limiting groove 331, the rotating disc 32 is locked, and a sample to be centrifuged can be taken and placed; then, the door closing key is pressed, and similarly, the limit rack 52 is separated from the first limit groove 331, the rotary disk 32 rotates to the second limit groove 332 opposite to the limit rack 52, at this time, the first opening and the second opening are symmetrically distributed, the first opening is blocked, the limit rack 52 is clamped into the second limit groove 332, and the rotary disk 32 is locked.

The above embodiments have only been described the basic principle and characteristics of the present invention, the present invention is not limited by the above embodiments, and the present invention does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A centrifuge, comprising:

the working device (1) is provided with a centrifugal cavity;

the rotor (2) is rotatably arranged in the centrifugal cavity, a plurality of accommodating grooves are formed in the rotor (2), a hanging basket (5) is hung in each accommodating groove, and the hanging basket (5) is used for accommodating a sample to be centrifuged;

the cover body assembly (3) is arranged on the operation device (1), covers the opening of the centrifugal cavity and has an opening state and a closing state, a taking and placing opening (30) is opened in the opening state of the cover body assembly (3), and the size of the taking and placing opening (30) is not smaller than the cross section size of one accommodating groove;

a drive mechanism capable of driving the cover assembly (3) to switch between the open state and the closed state;

limiting mechanism, including gear (51) and spacing rack (52), gear (51) for operation device (1) is fixed to be set up, be provided with the spacing groove on lid subassembly (3), gear (51) can drive spacing rack (52) motion makes spacing rack (52) with spacing groove joint or separation.

2. The centrifuge according to claim 1, wherein the cover assembly (3) comprises a fixed disk (31) and a rotating disk (32) which are coaxially arranged, the fixed disk (31) is fixedly connected with the operation device (1), the fixed disk (31) covers the opening of the centrifugal chamber, the rotating disk (32) is rotatably connected to the inner side of the fixed disk (31), a first opening is formed on the fixed disk (31), a second opening is formed on the rotating disk (32), and the first opening and the second opening are overlapped to form the taking and placing opening (30).

3. The centrifuge according to claim 2, characterized in that the drive mechanism comprises a drive gear (41), a gear ring (33) being provided on the circumference of the rotating disk (32), the gear ring (33) being in mesh with the drive gear (41).

4. The centrifuge according to claim 3, characterized in that the edge of the gear ring (33) is provided with the limiting groove, and the limiting rack (52) can be clamped into the limiting groove.

5. The centrifuge according to claim 4, wherein the two limiting grooves are divided into a first limiting groove (331) and a second limiting groove (332), the limiting rack (52) can be clamped into the first limiting groove (331) when the cover assembly (3) is in the open state, and the limiting rack (52) can be clamped into the second limiting groove (332) when the cover assembly (3) is in the closed state.

6. The centrifuge according to claim 5, wherein the ring gear (33) has a length smaller than the circumference of the rotating disk (32), one end of the ring gear (33) is opened with the first stopper groove (331), and the other end of the ring gear (33) is opened with the second stopper groove (332).

7. The centrifuge according to claim 3, characterized in that the driving mechanism further comprises a driving motor disposed on the working device (1), the driving gear (41) is connected to an output end of the driving motor, and the driving motor can drive the rotating disk (32) to rotate through the driving gear (41).

8. The centrifuge according to claim 1, wherein the limiting mechanism further comprises a motor, the motor is arranged on the working device (1), and the gear (51) is connected to an output end of the motor.

9. The centrifuge according to claim 1, characterized in that the number of the receiving grooves is two, and the two receiving grooves are symmetrically arranged on the rotor (2).

10. The centrifuge according to any of the claims 1 to 9, characterized in that a box body (11) is arranged on the outer side of the working device (1), the box body (11) is arranged on one side close to the taking and placing opening (30), and the driving mechanism and the limiting mechanism are both arranged on the box body (11).