CN220590372U - Centrifugal chamber assembly with cover plate capable of being automatically turned upwards - Google Patents

Abstract

The present utility model provides a centrifugal chamber assembly (100) with a cover automatically turned up, the centrifugal chamber assembly (100) comprising: a container (11); and two cover plates (12) arranged directly or indirectly on the container (11), wherein the two cover plates (12) are configured to be movable between a first position close to each other and a second position distant from each other to cover a centrifugal chamber (13) formed by the container (11) or to expose the centrifugal chamber (13); wherein the at least one cover plate (12) is configured to automatically flip upwards during movement from the first position to the second position. The centrifugal chamber assembly can avoid interference with other parts arranged on the periphery of the cover plate when the cover plate is opened, provide a better centrifugal chamber opening area, facilitate the putting in and taking out of the centrifugal cup, and simultaneously lead the layout of the cell treatment equipment to be more reasonable and the structure to be more compact.

Description

Centrifugal chamber assembly with cover plate capable of being automatically turned upwards

Technical Field

The utility model relates to the technical field of bioengineering or centrifugal devices, in particular to a centrifugal chamber assembly with a cover plate capable of automatically turning upwards.

Background

In the field of bioengineering, centrifugal apparatuses are required, for example, a centrifuge is required for concentrating and washing blood cells, and the blood cells after extracorporeal expansion are required to be reduced in volume and removed from culture medium, and they are usually fed into a centrifuge bowl, which is rotated by the drive of the centrifuge to separate useful components from useless components. During operation, the centrifuge cup is installed as a consumable in the centrifuge.

One of the core components of a centrifuge is a centrifugal chamber assembly, and the structure of an existing centrifugal chamber assembly is as follows: the upper end of centrifugal chamber/centrifugal chamber is provided with two roughly semicircular apron, and two apron can open and close, forms an accommodation space with the centrifugal chamber when closing, holds centrifugal consumptive material, can put into the centrifugal chamber or take out the centrifugal cup from the centrifugal chamber with the centrifugal cup when the apron is opened. The apron prevents on the one hand that centrifuge during operation from having the foreign matter to get into the centrifugal chamber, also is used for fixed centrifugal consumable's upper end on the one hand, prevents that centrifuge during operation, and centrifugal consumable rocks and flies out. The structure of the conventional centrifugal chamber assembly can be seen in fig. 1, and fig. 1 shows a cell processing apparatus 10 in a top view, which includes a centrifuge including a container 11 and two cover plates 12, the two cover plates 12 being horizontally rotatable about axes so as to be separated from or close to each other, a centrifugal chamber 13 being closed when the two cover plates 12 are close to each other, the centrifugal chamber 13 being exposed when the two cover plates 12 are far away from each other, and a centrifugal cup 14 (i.e., consumable) being placed or taken out therein. On the existing cell processing apparatus, it is desirable that the apparatus is more compact from the viewpoint of reasonable layout of components, and therefore, in the movable range of the cover plate, there is usually provided other components such as a fluid transfer pump 15 (typically a peristaltic pump), which results in that the movable range of the cover plate is limited, the cover plate cannot be moved sufficiently to completely open the centrifugal chamber, as shown in fig. 1, the cover plate 12 located on the right side is blocked by the fluid transfer pump 15, so that the upper opening of the centrifugal chamber 13 is not completely opened, and in actual use, when the centrifugal cup 14 is placed or taken out, an operator needs to slightly tilt the centrifugal cup 14 to put the cover plate 12 into the centrifugal cup 14 or take out the centrifugal cup 14, which results in inconvenience in operation.

Disclosure of Invention

The present utility model aims at least partially to overcome the drawbacks of the prior art and to provide a centrifugal chamber assembly with a cover that automatically turns up.

The utility model also aims to provide a centrifugal chamber assembly with the cover plate automatically turned upwards, which can avoid interference with other components arranged on the periphery of the cover plate when the cover plate is opened.

The utility model also aims to provide a centrifugal chamber assembly with a cover plate capable of automatically turning up, so that a better centrifugal chamber opening area can be obtained in a limited space.

The utility model also aims to provide the centrifugal chamber assembly with the cover plate capable of automatically turning upwards, so that the centrifugal cup can be conveniently put in and taken out.

The utility model also aims to provide a centrifugal chamber assembly with the cover plate capable of automatically turning upwards, so that the layout of the cell processing equipment is more reasonable and the structure is more compact.

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

a centrifugal chamber assembly with a cover that automatically flips up, the centrifugal chamber assembly comprising:

a container; and

two cover plates, which are directly or indirectly arranged on the container,

wherein the two cover plates are configured to be movable between a first position in which they are close to each other and a second position in which they are distant from each other, to cover or uncover the centrifugal chamber formed by the container;

wherein the at least one cover plate is configured to automatically flip upward during movement from the first position to the second position.

According to one embodiment of the utility model, the centrifugal chamber assembly further comprises a swivel base configured to be rotatably arranged on the container, and the at least one cover plate is configured to be rotatably connected to the swivel base.

According to one embodiment of the utility model, a containing groove is formed in one side of the rotating seat facing the container, the rotating seat is hinged with the at least one cover plate through a hinge shaft, a torsion spring and a spring shaft are arranged in the containing groove, the torsion spring is sleeved on the spring shaft, one free end of the torsion spring abuts against the rotating seat, and the other free end of the torsion spring abuts against the at least one cover plate.

According to one embodiment of the utility model, a spring groove is provided in the side of the at least one cover plate facing the container, the other free end of the torsion spring being provided in the spring groove.

According to one embodiment of the utility model, the spring shaft is the hinge shaft.

According to one embodiment of the utility model, the swivel base and/or the container is provided with a limiting device for limiting the swivel angle of the swivel base relative to the container.

According to one embodiment of the utility model, the limiting device comprises an arc limiting groove arranged on the container and a limiting pin arranged on the rotating seat; or alternatively

The limiting device comprises an arc limiting groove arranged on the rotating seat and a limiting pin arranged on the container.

According to one embodiment of the utility model, the centre of the combination of the two cover plates is formed with a central opening for the passage of the pipe of the centrifugal cup when the two cover plates are in the first position.

According to one embodiment of the utility model, the centrifugal chamber assembly further comprises a locking assembly for locking the two cover plates when the two cover plates are in the first position.

According to one embodiment of the utility model, the cover plate is provided with a transparent window for viewing the interior of the centrifugal chamber.

According to one embodiment of the utility model, the container comprises a container rim, on which the swivel mount is rotatably arranged.

According to one embodiment of the utility model, the swivel base comprises an extension block extending from the body of the swivel base, the at least one cover plate comprises two protruding arms, the extension block is arranged between the two protruding arms, and the hinge shaft passes through the extension block and the two protruding arms; or alternatively

The at least one cover plate comprises an extension block extending from the main body of the at least one cover plate, the rotating seat comprises two protruding arms, the extension block is arranged between the two protruding arms, and the hinge shaft penetrates through the extension block and the two protruding arms.

According to one embodiment of the utility model, a locating pin is provided on the container rim and a receptacle is provided on the cover plate which cooperates with the locating pin.

According to one embodiment of the utility model, the rotating seat is arranged on the container through a pin shaft assembly;

the pin assembly includes:

the rotating seat is sleeved on the periphery of the pin shaft;

the first gasket is sleeved on the pin shaft and is positioned on the vertical upper side of the rotating seat;

the second gasket is sleeved on the pin shaft and positioned at the vertical lower side of the rotating seat; and

and the end cap is fixedly connected with the pin shaft and is positioned above the first gasket.

The utility model provides a centrifugal chamber assembly with a cover plate capable of automatically turning upwards, and provides a centrifugal chamber cover plate opening and closing design scheme of cell processing equipment.

Specifically, the centrifugal chamber assembly is additionally provided with a rotating seat on the original basis, one side of the rotating seat facing the container is provided with a containing groove, a torsion spring is arranged in the containing groove, and under the action of the torsion spring, when the cover plate is outwards pulled out, the cover plate can upwards turn up a certain angle under the action force of the spring. In addition, in order to prevent collision and control the rotation of the cover plate in a certain rotation angle range, a limiting pin is arranged on the cover plate and can be clamped in a corresponding arc limiting groove on the edge of the container so as to limit the cover plate to open and close in a certain range, so that the cover plate is prevented from being mutually knocked due to overlarge opening angle. The upturning limit is realized through the structural design of the rotating seat and the cover plate, and is used for controlling the upturning angle and ensuring enough elastic supporting force.

Drawings

FIG. 1 is a schematic diagram of a conventional cell processing apparatus;

FIG. 2 is a perspective view of a centrifugal chamber assembly with a cover automatically flipped up, wherein the locking assembly is in a closed state and the cover is in a closed state, according to an embodiment of the utility model;

FIG. 3 is a perspective view of a centrifugal chamber assembly with a cover automatically flipped up, wherein the locking assembly is in an open state and the cover is in a closed state, according to an embodiment of the utility model;

FIG. 4 is a perspective view of a centrifugal chamber assembly with a cover automatically flipped up, wherein the locking assembly is in an open state and the cover is opened at a slight angle, in accordance with an embodiment of the present utility model;

FIG. 5 is a perspective view of a centrifugal chamber assembly with a cover automatically flipped up, wherein the locking assembly is in an open state and the cover is opened at a greater angle, in accordance with an embodiment of the utility model;

FIG. 6 is a perspective view of a centrifugal chamber assembly with a cover automatically flipped up, wherein the locking assembly is in an open state and the cover is fully open, according to an embodiment of the utility model;

FIG. 7 is a top view of the centrifugal chamber assembly of FIG. 3 with the cover automatically flipped up;

FIG. 8 is a side view of the centrifugal chamber assembly of FIG. 3 with the cover automatically flipped up;

FIG. 9 is a top view of the centrifugal chamber assembly of FIG. 3 with the cover automatically flipped up, wherein the components within the dashed circle are shown in perspective view;

FIG. 10 illustrates, at another angle, a fully opened state of a cover of a centrifugal chamber assembly with the cover automatically flipped up, according to an embodiment of the utility model;

FIG. 11 is a front view of the centrifugal chamber assembly of FIG. 6 with the cover automatically flipped up, with the locking assembly removed to illustrate the swivel mount;

FIG. 12 is a top view of the centrifugal chamber assembly of FIG. 6 with the cover automatically flipped up;

FIG. 13 is a partial cross-sectional view of the cover-automatically upturned centrifugal chamber assembly of FIG. 12, taken along section A-A;

FIG. 14 is a partial cross-sectional view of a centrifugal chamber assembly with a cover automatically flipped up;

FIG. 15 is a perspective view of a centrifugal chamber assembly with a cover automatically flipped up, with a locking assembly and one cover removed, according to an embodiment of the utility model;

figure 16 shows the back side of the cover plate and swivel base of a centrifugal chamber assembly with the cover plate automatically flipped up in accordance with an embodiment of the utility model;

FIG. 17 shows the back side of the cover and swivel base of a centrifugal chamber assembly with the cover automatically flipped up, from another angle, in accordance with an embodiment of the utility model;

fig. 18 is a bottom view of the cover and swivel base of the centrifugal chamber assembly with the cover automatically flipped up in accordance with an embodiment of the utility model; and

fig. 19 illustrates a pin assembly of a centrifugal chamber assembly with a cover automatically flipped up in accordance with an embodiment of the utility model.

Detailed Description

Exemplary embodiments of the present utility model 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.

The present general inventive concept provides a centrifugal chamber assembly with a cover automatically turned up, the centrifugal chamber assembly comprising: a container; and two cover plates disposed directly or indirectly on the container, wherein the two cover plates are configured to be movable between a first position proximate to each other and a second position distal from each other to cover or uncover a centrifugal chamber formed by the container; wherein the at least one cover plate is configured to automatically flip upward during movement from the first position to the second position.

Referring to the figures, centrifugal chamber assembly 100 comprises a container 11 in the form of a tub, container 11 having a housing space therein, as centrifugal chamber 13, and, during use, a centrifugal cup 14 housed within centrifugal chamber 13, container 11 having a container rim 21, two cover plates 12 being provided on container 11, in particular on container rim 21, each cover plate 12 having a substantially semicircular profile, said two cover plates 12 being configured to be movable between a first position close to each other and a second position distant from each other, to cover centrifugal chamber 13 formed by container 11 or to expose centrifugal chamber 13; the first position is the closed position of the cover plate as shown in fig. 3, and the second position is the fully open position of the cover plate as shown in fig. 6. Wherein at least one cover plate 12 is configured to automatically flip up during movement from the first position to the second position, which may be a first cover plate on the left or a second cover plate on the right, typically both cover plates 12 are identically designed, having the same structure, so that both cover plates 12 can automatically flip up during movement from the first position to the second position.

When the two cover plates 12 are in the first position, as shown in fig. 2 and 3, the center of the combination formed by the two cover plates 12 is formed with a central opening 18 for the passage of the pipe of the centrifugal cup 13; the centrifugal chamber assembly 100 further comprises a locking assembly 19 for locking the two cover plates 12 when the two cover plates 12 are in the first position, and when the locking assembly 19 is opened, as shown in fig. 3-6, the locking of the two cover plates 12 is released and the operator can dial the cover plates 12 outwards to open them. The locking assembly 19 may be a conventional locking assembly or a locking assembly of the structure shown in the drawings, which is a new and innovative structure, and will not be described in detail since the present utility model is not focused on the locking assembly. Further, a positioning pin 35 is provided on the container rim 21 near the locking assembly 19, the positioning pin being a rod extending upwards from the container rim 21, the positioning pin 35 comprising a rod portion and a head portion, and receiving portions 36 are provided on the two cover plates 12 for cooperation with the positioning pin, the receiving portions 36 having grooves 37, the head portion of the positioning pin 35 being just able to enter the grooves 37. In this way, when the two cover plates 12 are closed, even if the locking assembly 19 is in an open state, if the cover plates 12 are not pushed outward by hand, the two cover plates 12 will not spring up under the action of the positioning pins, and only after the cover plates 12 are pushed outward so that the cover plates 12 are separated from the action of the positioning pins 35, the two cover plates 12 will spring up. Advantageously, said cover plate 12 is provided with a transparent window 20 for viewing the interior of the centrifugal chamber 13.

In particular, the centrifugal chamber assembly 100 further comprises a rotation seat 16, said rotation seat 16 being configured to be rotatably arranged on the container 11, in particular on the container rim 21 by means of a pin assembly 17, the two rotation seats 16 being arranged close to each other symmetrically, the rotation seat 16 being massive, its cross section along the horizontal plane being T-shaped, the pin assembly 17 being arranged on one corner of the rotation seat 16, the rotation seat 16 being rotatable about the pin 34 of the pin assembly 17.

The cover plate 12 is configured to be rotatably connected to the swivel seat 16, specifically, a receiving groove 22 is provided on a side of the swivel seat 16 facing the container 11, the swivel seat 16 is hinged to the cover plate 12 through a hinge shaft, a torsion spring 25 and a spring shaft 23 are provided in the receiving groove 22, the torsion spring 25 is sleeved on the spring shaft 23, one free end of the torsion spring 25 abuts against the swivel seat 16, the other free end of the torsion spring 25 abuts against the cover plate 12, a spring groove 24 is provided on a side of the cover plate 12 facing the container 11, and the other free end of the torsion spring 25 is provided in the spring groove 24. Here, the hinge shaft and the spring shaft 23 may be the same shaft, they may be different shafts, and the axis of the hinge shaft is perpendicular to the axis of the pin shaft assembly 17.

As shown, the rotary base 16 includes an extension block 28 extending from the main body of the rotary base 16, and the cover 12 includes two extension arms 29, the extension block 28 is disposed between the two extension arms 29, and the hinge shaft passes through the extension block 28 and the two extension arms 29; the receiving groove 22, the torsion spring 25, the spring shaft 23, and the like are provided in the extension block 28 of the swivel base 16. As an alternative, the cover plate 12 may include an extension block 28 extending from the body of the cover plate 12, the swivel base 16 including two protruding arms 29, the extension block 28 being disposed between the two protruding arms 29, the hinge shaft passing through the extension block 28 and the two protruding arms 29.

With the centrifugal chamber assembly with such a structure, when the locking assembly 19 is in the locked state, the cover plate 12 cannot be horizontally poked or sprung upwards, when the locking assembly 19 is unlocked, the cover plate 12 cannot be sprung upwards in situ due to the action of the positioning pin 35 and the head thereof, and only when the cover plate 12 is manually poked to move in the horizontal direction so as to separate from the action of the positioning pin 35, the accommodating part 36 matched with the head of the positioning pin 35 can be provided with a friction plate, so that the cover plate 12 cannot be easily turned upwards due to the action of the positioning pin 35; when the operator dials the cover outwardly, the cover 12 rotates the swivel base 16 about the pin assembly 17, and when the cover 12 is rotated to a position (see fig. 4) out of engagement with the locating pin 35, the cover 12 is rotated upwardly relative to the swivel base 16 (and the container rim 21) by the spring force of the torsion spring 25, thereby entering the position shown in fig. 5 and 6. When it is desired to close the cover 12, the operator presses the cover 12 downwardly against the elastic force of the torsion spring 25 while simultaneously drawing the cover 12 inwardly until the receiving portion 36 of the cover 12 engages the head of the locating pin 35 and then may clasp the locking assembly 19 to effect closing and locking of the cover 12.

Further, a limiting device is provided on the rotating base 16 and/or the container 11, for limiting the rotation angle of the rotating base 16 relative to the container 11. Taking the illustrated embodiment as an example, the limiting device comprises an arc limiting groove 26 arranged on the container 11 and a limiting pin 27 arranged on the rotating seat 16, referring to fig. 9 and 15, the arc limiting groove 26 takes the axis of the pin shaft assembly 17 as the center of a circle, the limiting pin 27 stretches into the arc limiting groove 26, when the cover plate 12 is stirred, the cover plate 12 drives the rotating seat 16 to rotate, the limiting pin 27 moves along the arc limiting groove 26, and when the limiting pin moves to the edge of the arc limiting groove 26, the arc limiting groove 26 prevents the limiting pin 27 from moving further, so that the rotation of the rotating seat 16 is stopped, and the cover plate 12 reaches the maximum opening position.

As an alternative, the limiting means may comprise an arcuate limiting groove 26 provided on the swivel base 16 and a limiting pin 27 provided on the container 11, with which a similar limiting effect is achieved.

Regarding the fixation of the swivel base 16, a pin assembly 17 is employed, the pin assembly 17 comprising: the pin shaft 34 is fixedly arranged on the container edge 21 of the container 11, and the rotating seat 16 is sleeved on the periphery of the pin shaft 34; the first gasket 31 is sleeved on the pin shaft 34 and is positioned on the vertical upper side of the rotary seat 16; the second gasket 32 is sleeved on the pin shaft 34 and is positioned on the vertical lower side of the rotating seat 16; and an end cap 30 fixedly connected to the pin 34 and located above the first spacer 31. The pin 34 may be a rod secured to the container rim 21 and the end cap 30 may be a screw, the pin 34 having an internally threaded bore, and upon installation, the second washer 32 is placed over the pin 34, then the swivel 16 is placed over the pin 34, then the first washer 32 is installed, then the end cap 30 is threaded onto the pin 34, and the end cap 30 limits upward movement of the swivel 16, but allows the swivel 16 to swivel about the pin 34. The second gasket 32 may be slightly larger than the first gasket 31.

In order to avoid collisions, a buffer cushion is provided on part of the centrifugal chamber assembly, which buffer cushion can be provided, for example, on the back side of the cover plate 12, i.e. the side facing the container 11, a plurality of buffer cushions in circular form can be provided, which buffer cushion can be provided when the cover plate 12 is in contact with the container rim 21, and furthermore, at the facing edges of the two cover plates 12, even at the location of the two swivel seats facing each other, and furthermore, as shown in fig. 16, a buffer cushion 33 is provided on the side of the swivel seat 16 facing the container rim 21, which serves to support and increase friction.

The utility model provides a centrifugal chamber assembly with a cover plate capable of automatically turning upwards, and provides a centrifugal chamber cover plate opening and closing design scheme of cell processing equipment.

Specifically, the centrifugal chamber assembly is additionally provided with a rotating seat on the original basis, one side of the rotating seat facing the container is provided with a containing groove, a torsion spring is arranged in the containing groove, and under the action of the torsion spring, when the cover plate is outwards pulled out, the cover plate can upwards turn up a certain angle under the action force of the spring. In addition, in order to prevent collision and control the rotation of the cover plate in a certain rotation angle range, a limiting pin is arranged on the cover plate and can be clamped in a corresponding arc limiting groove on the edge of the container so as to limit the cover plate to open and close in a certain range, so that the cover plate is prevented from being mutually knocked due to overlarge opening angle. The upturning limit is realized through the structural design of the rotating seat and the cover plate, and is used for controlling the upturning angle and ensuring enough elastic supporting force.

Although embodiments of the present utility model 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 utility model. The scope of applicability of the present utility model is defined by the appended claims and equivalents thereof.

List of reference numerals:

10 cell processing apparatus

11 container

12 cover plate

13 centrifugal chamber

14 centrifugal cup

15 fluid transfer pump

16 rotary seat

17 round pin axle subassembly

18 central opening

19 locking assembly

20 transparent window

21 container rim

22 accommodating groove

23 spring shaft

24 spring groove

25 torsion spring

26 arc-shaped limiting groove

27 stop pin

28 extension block

29 projecting arm

30 end cap

31 first gasket

32 second gasket

33 cushion pad

34 pin shaft

35 locating pin

36 accommodating portion

37 groove

100 centrifugal chamber assembly.

Claims (10)

1. A centrifugal chamber assembly (100) with a cover that is automatically turned up, the centrifugal chamber assembly (100) comprising:

a container (11); and

two cover plates (12) arranged directly or indirectly on the container (11),

wherein the two cover plates (12) are configured to be movable between a first position close to each other and a second position distant from each other, to cover a centrifugal chamber (13) formed by the container (11) or to expose the centrifugal chamber (13);

wherein the at least one cover plate (12) is configured to automatically flip upwards during movement from the first position to the second position.

2. The cover-automatically upturned centrifugal chamber assembly (100) of claim 1, wherein:

the centrifugal chamber assembly (100) further comprises a swivel (16), the swivel (16) being configured to be rotatably arranged on the container (11), and the at least one cover plate (12) being configured to be rotatably connected to the swivel (16).

3. The cover-automatically upturned centrifugal chamber assembly (100) of claim 2, wherein:

one side of the rotary seat (16) facing the container (11) is provided with a containing groove (22), the rotary seat (16) is hinged with the at least one cover plate (12) through a hinge shaft, a torsion spring (25) and a spring shaft (23) are arranged in the containing groove (22), the torsion spring (25) is sleeved on the spring shaft (23), one free end of the torsion spring (25) is propped against the rotary seat (16), and the other free end of the torsion spring (25) is propped against the at least one cover plate (12).

4. A centrifugal chamber assembly (100) with automatically upturned cover plate according to claim 3, wherein:

a spring groove (24) is provided on the side of the at least one cover plate (12) facing the container (11), and the other free end of the torsion spring (25) is provided in the spring groove (24).

5. A centrifugal chamber assembly (100) with automatically upturned cover plate according to claim 3, wherein:

the spring shaft (23) is the hinge shaft.

6. A centrifugal chamber assembly (100) with automatically upturned cover plate according to claim 3, wherein:

and the rotating seat (16) and/or the container (11) are/is provided with a limiting device for limiting the rotating angle of the rotating seat (16) relative to the container (11).

7. The cover-automatically upturned centrifugal chamber assembly (100) of claim 6, wherein:

the limiting device comprises an arc-shaped limiting groove (26) arranged on the container (11) and a limiting pin (27) arranged on the rotating seat (16); or alternatively

The limiting device comprises an arc limiting groove (26) arranged on the rotating seat (16) and a limiting pin (27) arranged on the container (11).

8. The cover-automatically upturned centrifugal chamber assembly (100) of any one of claims 2 to 7, wherein:

the container (11) comprises a container rim (21), and the swivel base (16) is rotatably arranged on the container rim (21).

9. The cover-automatically upturned centrifugal chamber assembly (100) of claim 8, wherein:

a positioning pin (35) is arranged on the container rim (21), and a receiving portion (36) which is matched with the positioning pin (35) is arranged on the cover plate (12).

10. The cover-automatically upturned centrifugal chamber assembly (100) of any one of claims 2 to 7, wherein:

the rotating seat (16) is arranged on the container (11) through a pin shaft assembly (17);

the pin assembly (17) comprises:

the pin shaft (34) is fixedly arranged on the container (11), and the rotating seat (16) is sleeved on the periphery of the pin shaft (34);

the first gasket (31) is sleeved on the pin shaft (34) and is positioned on the vertical upper side of the rotating seat (16);

the second gasket (32) is sleeved on the pin shaft (34) and is positioned on the vertical lower side of the rotating seat (16); and

and the end cap (30) is fixedly connected with the pin shaft (34) and is positioned above the first gasket (31).