CN116328963A

CN116328963A - Locking assembly for cover plate of centrifugal barrel and centrifugal barrel

Info

Publication number: CN116328963A
Application number: CN202310470082.5A
Authority: CN
Inventors: 唐君强; 陈林雄; 王雪伟
Original assignee: Shenzhen Eureka Biology Technology Co ltd
Current assignee: Shenzhen Eureka Biology Technology Co ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-06-27

Abstract

The present invention provides a locking assembly (100) for a centrifuge bowl cover plate comprising: a base (32) configured for attachment with a centrifuge bowl (11); and a crimping element (31) attached to the base (32) and configured for being combined with the cover plate (13) of the centrifugal barrel (11) to put the cover plate (13) in a locked state, wherein the crimping element (31) is configured to be rotatable relative to the base (32) to change between a first state of locking the cover plate (13) and a second state of unlocking the cover plate (13); and wherein the locking assembly (100) further comprises a position detection unit for determining the state of the crimping element (31). The invention also provides a centrifugal barrel. The locking assembly for the cover plate of the centrifugal barrel and the centrifugal barrel can improve the safety of centrifugal operation.

Description

Locking assembly for cover plate of centrifugal barrel and centrifugal barrel

Technical Field

The invention relates to the technical field of bioengineering or centrifuges, in particular to a device for fixing centrifugal consumable materials, and specifically relates to a locking assembly for a cover plate of a centrifugal barrel and the centrifugal barrel comprising the locking assembly.

Background

In the field of bioengineering, centrifuges are often used, for example, for concentrating and washing blood cells, which require a reduction in volume and removal of culture medium after extracorporeal expansion, and are usually fed into a centrifuge bowl, which is rotated by the drive of the centrifuge to separate the useful components from the useless components. During operation, the centrifuge cup is installed as a consumable in the centrifuge.

The centrifugal machine is formed by combining a centrifugal seat and a centrifugal barrel, a centrifugal barrel cover plate is used for fixing a centrifugal cup in the centrifugal barrel and is generally composed of two semicircular plates, a chamber for containing centrifugal consumable materials is formed in the centrifugal barrel when the centrifugal barrel cover plate is closed, the centrifugal barrel cover plate prevents foreign matters from entering when the centrifugal machine works, and is also used for fixing the upper end of the centrifugal consumable materials on the one hand and preventing the centrifugal consumable materials from shaking and flying out when the centrifugal machine works. When installing and demolishing the consumptive material, need open the centrifugal barrel apron, and need guarantee when operating condition that the apron is in the closed condition and compress tightly, prevent that the consumptive material from becoming flexible to deviate from through the hasp, ensure the stability of work and operating personnel's safety. If the centrifuge bowl cover is erroneously opened or loosened in the operating state, serious safety accidents may be caused.

Disclosure of Invention

The present invention aims to at least partially overcome the drawbacks of the prior art and to provide a novel locking assembly for a centrifuge bowl cover plate.

The invention also aims to provide a locking assembly for the cover plate of the centrifugal barrel, which improves the safety of centrifugal operation.

It is also an object of the present invention to provide a centrifuge basket including a locking assembly.

In order to achieve one of the above objects or purposes, the technical solution of the present invention is as follows:

a locking assembly for a centrifuge bowl cover, the locking assembly comprising:

a base configured for attachment with a centrifuge bowl; and

a crimping element attached to the base and configured for engagement with the cover plate of the centrifuge basket to place the cover plate in a locked condition,

wherein the crimping element is configured to be rotatable relative to the base to change between a first state in which the cover plate is locked and a second state in which the cover plate is unlocked; and is also provided with

Wherein, locking subassembly still includes the position detection unit for confirm the state of withholding the component.

According to one embodiment of the invention, the locking assembly further comprises:

a dial button arranged on the base; and

an inner movable element disposed within the base and configured to retain the crimping element in a first state of the crimping element, to prevent the crimping element from changing from the first state to the second state,

wherein the dial is connected with the inner movable element for actuating the inner movable element so that the inner movable element can be changed between a third state of clamping the buckling element and a fourth state of releasing the clamping of the buckling element.

According to one embodiment of the invention, the buckling element is provided with a vertical groove and a transverse groove which are communicated with each other;

the inner movable element is provided with a combination pin which is configured to extend into the vertical groove or the transverse groove and can move in the vertical groove and the transverse groove; and is also provided with

In a third condition of the inner mobile element, the coupling pin is located in the transversal groove; in the fourth state of the inner movable element, the coupling pin is located in the vertical slot.

According to one embodiment of the invention, the inner movable element is provided with a moving pin coupling hole; the shifting button is provided with a moving pin, the base is provided with a moving pin sliding hole, and the moving pin stretches into the moving pin sliding hole and is combined with the moving pin combining hole, so that the inner moving element is driven to move in the base by the movement of the shifting button.

According to one embodiment of the invention, the base is provided with a receiving portion therein, the inner movable element is provided in the receiving portion, and the inner movable element is provided with a spring receiving hole;

the locking assembly further comprises a spring arranged in the base, one end of the spring is accommodated in the spring accommodating hole, and the other end of the spring abuts against the side wall of the accommodating portion.

According to an embodiment of the present invention, the position detection unit includes:

a latch sensor configured for attachment to a centrifuge bucket;

the sensing element is connected with the inner movable element or the pulling button,

wherein the latch sensor is configured to sense the inductive element to determine the position of the inner movable element or dial.

According to one embodiment of the invention, the base is provided with at least one indicating unit, and the dial is capable of shielding or exposing the indicating unit when the dial is moved relative to the base, thereby indicating a change in position of the dial.

According to one embodiment of the invention, the crimping element comprises:

a buckling plate;

a connecting part extending from one side of the buckling plate; and

the edge is arranged on one side of the buckling plate opposite to the connecting part.

According to one embodiment of the invention, the base is provided with an inner recess on the side thereof adjacent to the crimping element, and the connecting part is arranged in the inner recess and is hinged to the base by means of a rotation shaft.

According to one embodiment of the invention, one side of the buckling plate is provided with a protruding pin shaft clamping groove for clamping and fixing the cover plate.

According to another aspect of the invention, a centrifuge bowl is provided comprising a locking assembly for a centrifuge bowl cover plate according to any of the preceding embodiments.

According to the locking assembly for the cover plate of the centrifugal barrel, the buckling element can lock the cover plate of the centrifugal barrel and can also unlock the cover plate, when the cover plate needs to be locked, the centrifugal barrel is buckled in the two cover plates, then the buckling element is turned down, the two cover plates can be locked, the buckling element is provided with the vertical groove and the transverse groove which are communicated with each other, the inner movable element is provided with the combining pin, after the buckling element is turned down, the combining pin is transferred into the transverse groove from the vertical groove and moves in the transverse groove under the restoring force of the spring to drive the poking button to move together, at the moment, the combining pin is far away from the vertical groove, the buckling element is blocked by the combining pin, so that the buckling element cannot be turned upwards, the buckling element is locked, the buckling element is prevented from being accidentally or being released due to wrong operation or negligence, and the working stability, the safety of equipment and the safety of operators are ensured. In the process of locking the cover plate, only one action of turning down the buckling element is needed, and the buckling element can be automatically locked without stirring the poking button. When the locking of the cover plate needs to be released, the pulling button is reversely pulled at first, the pulling button drives the inner movable element to move and simultaneously compresses the spring, so that the combination pin moves into the vertical groove from the transverse groove, the clamping of the buckling element is released by the combination pin, the buckling element can be overturned, then the buckling element is manually pulled by hands to enable the buckling element to overturned, the cover plate is released, at the moment, the left cover plate and the right cover plate can be outwards opened, and consumable materials can be taken out.

The locking assembly is provided with a lock catch sensor and a sensing element, wherein the lock catch sensor is attached to the centrifugal barrel, the sensing element is connected with the inner movable element or the pulling button, and the pressing element is in a first state of locking the cover plate, the sensing element is kept closest to the lock catch sensor, for example, the sensing element is just above the lock catch sensor, so that when the lock catch sensor detects the sensing element, the cover plate is correctly locked, if the pulling button is intentionally or unintentionally pulled to change the position, the sensing element is separated from the lock catch sensor, the lock catch sensor senses that the position of the sensing element changes or the sensing element is not sensed, the pressing element is not blocked, or the pressing element is overturned upwards without locking the cover plate, and accordingly, the centrifugal machine can be indicated not to start or stop so as to ensure safety. With the position detection unit, the centrifuge system can be arranged such that the centrifuge can only be started if the cover plate is correctly locked.

The locking component for the cover plate of the centrifugal barrel is a mechanical self-locking mechanism, and can automatically fall down and lock when the cover plate is pressed, otherwise, a control interface of the centrifugal machine has abnormal prompt, the cover plate cannot be directly opened or can not be jacked by consumable therein, and the buckling element can be turned up only when the poking button is poked to a specific position, so that the left cover plate and the right cover plate can be outwards poked. The locking component can be operated by one hand during locking, and when the locking component is opened, the operation of continuously pulling the pulling button is needed to be added, so that the difficulty of a switch is increased, and the machine operation is prevented from being interrupted or dangerous caused by unintentional opening. Further, when the cover plate of the centrifugal barrel is opened by a small angle, the sensor can detect that the cover plate is opened to automatically stop the rotation of the centrifugal machine, so that accidents can be avoided.

Therefore, the locking component provided by the invention can be matched with the sensor and the sensing element on the centrifugal barrel to provide the functions of cover plate position detection and self-locking, so that the equipment can be ensured to be normally used, and the equipment can be stopped in time to avoid damage or dangerous situations if the cover plate is opened by mistake and the buckling element is not completely locked in work.

Drawings

Fig. 1 is a schematic perspective view of a centrifuge bucket including a locking assembly according to an embodiment of the present invention;

FIG. 2 shows a centrifuge bucket from another angle according to an embodiment of the invention;

FIG. 3 is a schematic perspective view of a centrifuge bowl with a locking assembly removed from the centrifuge bowl according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of a locking assembly for a centrifuge bowl cover plate, wherein the locking assembly is in a locked state, according to an embodiment of the present invention;

FIG. 5 is a front view of the locking assembly for the centrifuge bowl cover of FIG. 4;

FIG. 6 is a side view of the locking assembly for the centrifuge bowl cover of FIG. 4;

FIG. 7 is a top view of the locking assembly for the centrifuge bowl cover of FIG. 4;

FIG. 8 is an exploded view of the locking assembly for the centrifuge bowl cover of FIG. 4;

FIG. 9 is a partial cross-sectional view of the locking assembly for the centrifuge bowl cover of FIG. 5;

FIG. 10 is a partial cross-sectional view of the locking assembly for the centrifuge bowl cover of FIG. 7;

FIG. 11 is a side view of a locking assembly for a centrifuge bowl cover plate in accordance with an embodiment of the present invention, wherein the locking assembly is in an open state;

FIG. 12 is a left side view of the locking assembly for the centrifuge bowl cover of FIG. 11;

FIG. 13 is an exploded view of the locking assembly for the centrifuge bowl cover of FIG. 11; and

fig. 14 is a cross-sectional view A-A of the locking assembly for the centrifuge bowl cover of fig. 11.

Detailed Description

Exemplary embodiments of the present invention are described in detail below with reference to the attached drawing figures, wherein the same or similar reference numerals denote the same or similar elements. Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in the drawings in order to simplify the drawings.

Fig. 1 is a perspective view of a centrifugal barrel according to an embodiment of the present invention, in which a centrifugal barrel 11 is generally cylindrical and includes a cylindrical barrel body having a barrel rim 12 at an upper end thereof, and a centrifugal chamber 19 in the barrel body, the upper end of the barrel body being closed by two cover plates 13, each cover plate 13 being a semicircular plate, one end of which is rotatably fixed to the barrel rim 12 by a hinge shaft 16 so that the cover plates 13 can rotate about the hinge shaft 16, when the two cover plates 13 rotate outwardly, the upper end of the barrel body is exposed, a centrifugal cup can be loaded into the barrel body, and when the two cover plates 13 rotate inwardly relatively, the upper end of the barrel body is covered, and a centrifugal consumable through hole 15 is left only in the center for clamping and chucking the upper portion of a centrifugal consumable (such as a centrifugal cup), and advantageously, a viewing window 14 can be provided on the cover plates 13 so as to view the condition in the barrel body.

The ends of the two cover plates 13 opposite to the hinge shaft 16 are locked by the locking assembly 100 of the present invention, and each cover plate 13 is provided at the end with a protruding pin 21, as shown in fig. 3, and accordingly, the locking assembly 100 is provided with a protruding pin catching groove 58 (described later) on the buckling member 31, and the protruding pin catching groove 58 can receive two protruding pins 21, and the two protruding pins 21 are bound by the protruding pin catching groove 58, thereby restraining the cover plates 13.

Advantageously, one or two limiting pins may be provided on the chime 12, the position of the limiting pin being close to the locking assembly 100, and a recess cooperating with the limiting pin may be provided on the cover 13, the limiting pin having the function of limiting the two cover 13 when the two cover 13 are rotated relatively inwards and cover the chime.

Two cover opening sensors 17 and a latch sensor 18 are provided on the outer circumference of the barrel wall of the centrifugal barrel 11, and are fixed on the barrel wall through a fixing part 20, the two cover opening sensors 17 are symmetrically arranged with the latch sensor 18 as a center, the cover opening sensors 17 are used for detecting the position of the cover plate 13 (or detecting whether the cover plate 13 is closed), the cover opening sensors 17 can be hall sensors, for example, and are positioned right below the edge of the cover plate 13, a magnet is embedded on one side of the edge of the cover plate 13 facing the barrel edge 12, when the cover plate 13 covers the barrel body, the position of the magnet is completely opposite to the position of the cover opening sensors 17 (completely opposite in the vertical direction), and the cover opening sensors 17 can sense the magnet, so that whether the cover plate 13 is in an open state or a closed state can be determined. The centrifuge bowl 11 of the present invention is configured to start the rotation of the centrifuge bowl 11 only when the cover-opening sensor 17 determines that the cover plate 13 is in the closed state, to prohibit the rotation of the centrifuge bowl 11 when the cover-opening sensor 17 determines that the cover plate 13 is in the open state, and to stop the rotation of the centrifuge bowl 11 when the cover-opening sensor 17 determines that the cover plate 13 is opened during the operation of the centrifuge, so as to prevent a safety accident. The latch sensor 18 is similarly arranged to cooperate with a sensing element 34, described later, to sense the condition of the latch assembly 100.

Fig. 3 shows a centrifugal barrel with the locking assembly removed, wherein two mounting holes 22 are provided on the barrel rim 12 near the protruding pin 21 for mounting the locking assembly 100, wherein the base 32 of the locking assembly 100 can be fastened to the mounting holes 22 by screws, and specifically, two base mounting holes 59 are provided on the lower side of the base 32, wherein the screws are screwed to the base mounting holes 59 through the mounting holes 22, and wherein a through hole 23 is provided between the two mounting holes 22, wherein the through hole 23 has a certain length along the circumferential direction of the barrel rim 12, which allows the sensing element 34 to pass therethrough and allows the sensing element 34 to move in the circumferential direction, and wherein the sensing element 34 is positioned completely opposite (vertically completely opposite) to the position of the latch sensor 18 when the cover 13 covers the barrel body and the locking assembly 100 is in the locked state, as shown in fig. 2.

The following describes a locking assembly 100 according to an embodiment of the present invention, the locking assembly 100 mainly includes a base 32, a pressing member 31, a knob 33, a sensing member 34, and an inner moving member 50. The base 32 is generally block-shaped and configured for attachment to the centrifugal barrel 11, with a threaded hole in the bottom of the base 32, and the base 32 is screwed onto the mounting hole 22 of the rim 12 of the centrifugal barrel 11. The vertical upper end of the base 32 is provided with an internal recess 44 to facilitate connection with the crimping element 31. Attached to the base 32 is a crimping element 31 comprising a crimping plate 41 and a connecting part 42, the aforementioned protruding pin catch 58 being provided in the crimping plate 41, the connecting part 42 extending from one side of the crimping plate 41, the connecting part 42 having a lateral width smaller than the lateral width of the crimping plate 41, the connecting part 42 being dimensioned to fit the dimensions of the recess 44 such that the connecting part 42 is positioned exactly in the recess 44.

The crimping element 31 is configured for engagement with the cover plate 13 of the centrifuge basket 11 to bring the cover plate 13 in a locked state, wherein said crimping element 31 is configured to be rotatable relative to the base 32 to change between a first state locking the cover plate 13 and a second state unlocking the cover plate 13. Specifically, the connecting portion 42 is provided with a longitudinal connecting hole 43, and the connecting holes 43 are also provided on both sides of the concave portion 44 of the base portion 32, when the connecting portion 42 is provided with the concave portion 44, the rotation shaft 35 penetrates into the three connecting holes 43 to hinge the holding-down member 31 with the base portion 32, the holding-down member 31 can rotate about the rotation shaft 35 relative to the base portion 32, so that two states as shown in fig. 4 and 11 occur, in which the holding-down member 31 is turned down, the side of the holding-down member 31 having the protruding pin catching groove 58 faces down, and at this time the holding-down member 31 locks the cover plate 13, which is the first state of the holding-down member 31; in fig. 11, the holding member 31 is turned upward, the holding member 31 stands upright with the side having the protruding pin catching groove 58 facing forward, and at this time the holding member 31 releases the lock of the cover plate 13, which is the second state of the holding member 31.

Fig. 4-10 are views of the locking assembly in a locked condition and fig. 11-14 are views of the locking assembly in an unlocked condition, with embodiments of the present invention being relatively understood.

The structure of the locking assembly according to the embodiment of the present invention will be described in detail below with reference to the exploded view of fig. 8, in which the dial 33 is provided on the outer side of the base 32, which has a shape that facilitates handling, and a moving pin 46 is provided on the side thereof facing the base 32, a moving pin sliding hole 45 is provided on the outer side of the base 32, the moving pin sliding hole 45 is an elongated hole, and the moving pin 46 protrudes into the moving pin sliding hole 45, is capable of sliding in the moving pin sliding hole 45, and the dial 33 can be attached to the base 32 through a supporting member 47. The inner movable element 50 is arranged in the base 32, the base 32 is internally provided with a receiving portion 55, the inner movable element 50 is arranged in the receiving portion 55, the inner movable element 50 is in a generally block shape, the inner movable element 50 is configured to be capable of clamping the clamping element 31 in a first state of the clamping element 31 and preventing the clamping element 31 from changing from the first state to a second state, the toggle 33 is connected with the inner movable element 50 for actuating the inner movable element 50, so that the inner movable element 50 can be changed between a third state of clamping the clamping element 31 and a fourth state of releasing the clamping of the clamping element 31.

Specifically, the connection of the toggle 33 with the inner mobile element 50 is achieved in the following way: the inner movable member 50 is provided with a moving pin coupling hole 53; as described above, the base 32 is provided with the moving pin sliding hole 45, and the moving pin 46 is inserted into the moving pin sliding hole 45 and combined with the moving pin combining hole 53, so that the movement of the dial 33 moves the inner moving member 50 in the base 32.

In the following description of how the inner movable member 50 holds the pressing member 31, the pressing member 31 is provided with a vertical groove 37 and a lateral groove 57 which are communicated with each other, the vertical groove 37 and the lateral groove 57 are combined to form an L-shaped groove, the lateral groove 57 is located on the same side of the pressing plate 41 as the protruding pin catching groove 58, the vertical groove 37 extends along the circumferential direction of the connecting portion 42, the inner movable member 50 is provided with a coupling pin 51, a coupling pin sliding hole 48 is opened in the bottom surface of the concave portion 44 of the base portion 32, the coupling pin sliding hole 48 is an elongated hole whose extending direction is the same as that of the rotating shaft 35, the coupling pin 51 is configured to protrude from the coupling pin sliding hole 48 of the base portion 32 and be slidable in the coupling pin sliding hole 48, and the coupling pin 51 is protruded into the vertical groove 37 or the lateral groove 57 and is movable in the vertical groove 37 and the lateral groove 57. As shown in fig. 8, the holding member 31 is in the first state, in which the dial 33 is located on the left side (closer to the left side than the moving pin sliding hole 45), then the inner movable member 50 connected to the dial 32 is also further left, in which the position of the engaging pin 51 in the engaging pin sliding hole 48 is also further left, and the engaging pin 51 is extended in the lateral groove 57, which is the third state of the inner movable member 50, in which the engaging pin 51 holds the holding member 31, preventing the holding member 31 from being changed from the first state to the second state (turned upward); as shown in fig. 13, the holding member 31 is in the second state in which the toggle 33 is located on the right side (closer to the right side than the moving pin sliding hole 45), then the inner movable member 50 connected to the toggle 32 is also further right, and in which the position of the engaging pin 51 in the engaging pin sliding hole 48 is also further right, and the engaging pin 51 extends in the vertical hole 37, which is the fourth state of the inner movable member 50 in which the engaging pin 51 does not hold the holding member 31, and the holding member 31 can be turned upward or downward.

The inner movable member 50 is provided with a spring receiving hole 52, the spring receiving hole 52 is a longitudinal blind hole, and the longitudinal extending direction is parallel to the axial direction of the rotating shaft 35, so that the spring receiving hole 52 is in one side surface of the inner movable member 50, and the locking assembly 100 further includes a spring 54 provided in the base 32, one end of the spring 54 is received in the spring receiving hole 52, and the other end abuts against the side wall of the receiving portion 55. By means of the spring 54, a force biasing the inner movable element 50 to the left is always applied, so that the inner movable element 50 can be kept in the third state and the holding-down element 31 can be kept in the first state, in both states the holding-down element 31 is locked to the cover plate 13, and the cover plate 13 can be prevented from being opened by mistake only when an external force overcomes the spring force.

In particular, the base 32 may be provided with at least one indicating unit 36, the dial 33 being able to block or expose the indicating unit 36 when the dial 33 is moved relative to the base 32, thereby indicating a change in position of the dial 33. In the illustrated embodiment, the number of indicating units 36 is two, which are respectively located at both sides of the moving pin sliding hole 45, such that when the knob 33 is located at the leftmost side, the knob 33 covers the left indicating unit 36 and exposes the right indicating unit 36, which shows that the pressing member 31 locks the cover plate 13, and when the knob 33 is located at the rightmost side, the knob 33 covers the right indicating unit 36 and exposes the left indicating unit 36, which shows that the pressing member 31 does not lock the cover plate 13. The indication unit 36 may be a symbol mark or a shallow groove on the base 32.

Further, a rim 38 may be disposed on the buckling element 31, so that the buckling element 31 can be turned upwards, and the rim 38 may be disposed on a side of the buckling plate 41 opposite to the connection portion 42.

In order to be able to monitor the state of the crimping element 31 for automatically controlling the operation of the centrifuge, a latching sensor 18 and a sensing element 34 are provided for the latching assembly 100, which in combination form a position detection unit for determining the state of the crimping element 31. The latch sensor 18 is configured for attachment to the centrifuge bowl 11, and the sensing element 34 may be connected to the inner movable element 50 or to the dial 33, as long as the position of the sensing element 34 can be changed by the dial 33. In the illustrated embodiment, the sensing element 34 is coupled to the inner movable element 50, and a sensing element aperture 56 is provided in the lower surface of the inner movable element 50, the sensing element 34 being secured within the sensing element aperture 56, the sensing element 34 extending downwardly from the base 32 and out through-hole 23 in the chime 12, corresponding to the latch sensor 18. The latch sensor 18 is configured to sense the sensing element 34 to determine the position of the inner movable element 50 or toggle 33.

According to another aspect of the present invention, a centrifuge bowl 11 is provided, said centrifuge bowl 11 comprising a locking assembly 100 for a centrifuge bowl cover plate according to any of the previous embodiments.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention. The scope of applicability of the present invention is defined by the appended claims and equivalents thereof.

List of reference numerals:

100 locking assembly

11 centrifugal barrel

12 bucket edge

13 cover plate

14 observation window

15 centrifugal consumable through hole

16 hinge shaft

17 uncapping sensor

18 lock catch sensor

19 centrifugal chamber

20 fixing portion

21 protruding pin shaft

22 mounting hole site

23 through hole

31 buckling element

32 base

33 toggle button

34 inductive element

35 spindle

36 indicating unit

37 vertical groove

38 edge of

41 buckling plate

42 connection part

43 connecting hole

44 inner concave part

45 moving pin sliding hole

46 movement pin

47 support element

48 combined pin sliding hole

50 inner movable element

51 joint pin

52 spring receiving hole

53 moving pin coupling hole

54 spring

55 receiving portion

56 sensing element holes

57 transverse grooves

58 protruding pin shaft clamping groove

59 base mounting holes.

Claims

1. A locking assembly (100) for a centrifuge bowl cover plate, the locking assembly (100) comprising:

a base (32) configured for attachment with a centrifuge bowl (11); and

a crimping element (31) attached to the base (32) and configured for coupling with the cover plate (13) of the centrifuge basket (11) to place the cover plate (13) in a locked state,

wherein the crimping element (31) is configured to be rotatable relative to the base (32) to change between a first state of locking the cover plate (13) and a second state of unlocking the cover plate (13); and is also provided with

Wherein the locking assembly (100) further comprises a position detection unit for determining the state of the crimping element (31).

2. The locking assembly (100) for a centrifuge bowl cover according to claim 1, wherein the locking assembly (100) further comprises:

a dial (33) provided on the base (32); and

an inner movable element (50) disposed within the base (32) and configured to be capable of holding the crimping element (31) in a first state of the crimping element (31), preventing the crimping element (31) from changing from the first state to the second state,

wherein the dial (33) is connected to the inner movable element (50) for actuating the inner movable element (50) such that the inner movable element (50) can be changed between a third state in which it grips the crimping element (31) and a fourth state in which it releases the grip on the crimping element (31).

3. The locking assembly (100) for a centrifuge bowl cover according to claim 2, wherein:

the buckling element (31) is provided with a vertical groove (37) and a transverse groove (57) which are communicated with each other;

-the inner mobile element (50) is provided with a coupling pin (51), the coupling pin (51) being configured to extend into the vertical slot (37) or the transverse slot (57) and to be movable in the vertical slot (37) and the transverse slot (57); and is also provided with

In a third condition of the inner mobile element (50), the coupling pin (51) is located in the transversal groove (57); in a fourth state of the inner movable element (50), the coupling pin (51) is located in the vertical slot (37).

4. The locking assembly (100) for a centrifuge bowl cover according to claim 2, wherein:

the inner movable element (50) is provided with a movable pin combination hole (53); the shifting button (33) is provided with a moving pin (46), the base (32) is provided with a moving pin sliding hole (45), and the moving pin (46) stretches into the moving pin sliding hole (45) and is combined with the moving pin combining hole (53), so that the inner moving element (50) is driven to move in the base (32) by the movement of the shifting button (33).

5. The locking assembly (100) for a centrifuge bowl cover according to claim 2, wherein:

a containing part (55) is arranged in the base part (32), the inner movable element (50) is arranged in the containing part (55), and a spring containing hole (52) is arranged on the inner movable element (50);

the locking assembly (100) further comprises a spring (54) disposed within the base (32), one end of the spring (54) being received in the spring receiving hole (52) and the other end abutting against a side wall of the receiving portion (55).

6. The locking assembly (100) for a centrifuge bowl cover according to claim 2, wherein the position detection unit comprises:

a latch sensor (18) configured for attachment to a centrifuge bowl (11);

a sensing element (34) connected with the inner movable element (50) or the pulling button (33),

wherein the latch sensor (18) is configured for sensing the inductive element (34) to determine the position of the inner movable element (50) or the toggle (33).

7. The locking assembly (100) for a centrifuge bowl cover according to claim 2, wherein:

at least one indicating unit (36) is arranged on the base (32), and when the poking button (33) moves relative to the base (32), the poking button (33) can shield or expose the indicating unit (36) so as to indicate the position change of the poking button (33).

8. Locking assembly (100) for a centrifuge bowl cover according to any of claims 1-7, characterized in that the crimping element (31) comprises:

a buckling plate (41);

a connecting part (42) extending from one side of the buckling plate (41); and

the edge (38) is arranged on the side of the buckling plate (41) opposite to the connecting part (42).

9. The locking assembly (100) for a centrifuge bowl cover according to claim 8, wherein:

an inner concave part (44) is arranged on one side of the base part (32) close to the buckling element (31), and the connecting part (42) is arranged in the inner concave part (44) and hinged with the base part (32) through a rotating shaft (35).

10. A centrifuge bowl (11), characterized in that: the centrifuge bowl (11) comprises a locking assembly (100) for a centrifuge bowl cover according to any of claims 1-9.