Shaking driving device and culture device

Abstract

Disclosed in the present application are a shaking driving device and a culture device. The shaking driving device comprises: a base plate; an electric motor disposed below the base plate; an eccentric shaft assembly disposed above the base plate, the eccentric shaft assembly comprising a rotating shaft and an eccentric shaft which are eccentrically arranged, wherein the rotating shaft passes through the base plate to connect to the electric motor; a driving plate disposed above the eccentric shaft assembly and connected to the eccentric shaft; and a fixing mechanism located between the driving plate and the base plate, the fixing mechanism having a limiting portion defined thereon, and the limiting portion mating with the eccentric shaft assembly and / or the driving plate, such that the eccentric shaft assembly drives the driving plate to move along a preset trajectory.

Description

Oscillation drive device and culture device

[0001] This application is based on and claims priority to Chinese Patent Application No. 202411608386.4, filed on November 11, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of experimental instrument technology, such as an oscillation driving device and a culture device. Background Technology

[0003] Currently, most oscillation drive structures are five-eccentric-axis or three-eccentric-axis structures. The drive plate is fixed at three or more points, and a shake flask fixing clamp is added to the drive plate to achieve the oscillation culture effect.

[0004] In related technologies, multi-eccentric shaft mechanisms often use belt drives. The motor is installed between the drive plate and the base plate and is keyed to the drive pulley. The belt drive increases the torque to the driven large pulley, which in turn drives the drive eccentric shaft to move. The driven eccentric shaft is fixed on the same drive plate as the drive shaft and follows it in a rotary motion.

[0005] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0006] In related technologies, belt drives are prone to wear and loosening over time, and the numerous transmission structures result in significant transmission losses.

[0007] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0008] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0009] This disclosure provides an oscillation driving device and a culture device to reduce transmission loss and improve transmission efficiency.

[0010] This disclosure provides an oscillation driving device, which includes: a base plate; a motor disposed below the base plate; an eccentric shaft assembly disposed above the base plate, the eccentric shaft assembly including an eccentrically mounted rotating shaft and an eccentric shaft, the rotating shaft passing through the base plate and connected to the motor; a driving plate disposed above the eccentric shaft assembly and connected to the eccentric shaft; and a fixing mechanism located between the driving plate and the base plate, the fixing mechanism defining a limiting part, the limiting part cooperating with the eccentric shaft assembly and / or the driving plate to cause the eccentric shaft assembly and the driving plate to move along a preset trajectory.

[0011] This disclosure also provides a culture apparatus, which includes an oscillation drive device as described in any of the above embodiments.

[0012] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0013] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0014] Figure 1 is a structural schematic diagram of an oscillation driving device provided in an embodiment of this disclosure from one perspective;

[0015] Figure 2 is a structural schematic diagram of an oscillation driving device provided in an embodiment of this disclosure from another perspective;

[0016] Figure 3 is an exploded structural diagram of an oscillation driving device provided in an embodiment of this disclosure;

[0017] Figure 4 is a structural schematic diagram of a fixed mechanism provided in an embodiment of this disclosure from one perspective;

[0018] Figure 5 is a structural schematic diagram of a fixing mechanism provided in an embodiment of this disclosure from another perspective;

[0019] Figure 6 is a partial structural schematic diagram of a fixing mechanism provided in an embodiment of this disclosure;

[0020] Figure 7 is a structural schematic diagram of an eccentric shaft assembly provided in an embodiment of this disclosure;

[0021] Figure 8 is a partial structural schematic diagram of another eccentric shaft assembly provided in an embodiment of this disclosure;

[0022] Figure 9 is a partial structural schematic diagram of another eccentric shaft assembly provided in an embodiment of this disclosure;

[0023] Figure 10 is a cross-sectional structural schematic diagram of an oscillation driving device provided in an embodiment of this disclosure;

[0024] Figure 11 is a partial structural schematic diagram of another eccentric shaft assembly provided in an embodiment of this disclosure;

[0025] Figure 12 is a schematic diagram of the mating structure of the motor, the fixed sleeve and the rotating shaft provided in the embodiment of this disclosure.

[0026] Reference numerals: 10, base plate; 101, through hole; 102, shock absorber column; 20, motor; 201, rotor; 202, stator; 203, fixing sleeve; 30, eccentric shaft assembly; 301, rotating shaft; 302, eccentric shaft; 303, first bearing; 304, second bearing; 305, mounting plate; 306, first plug; 307, second plug; 308, rocker plate fixing plate; 40, fixing mechanism; 401, first fixing member; 402, second fixing member; 403, first moving groove; 404, second moving groove; 405, first elastic metal strip; 4051, first pad; 406, second elastic metal strip; 4061, second pad; 407, fixing member body; 408, connecting edge; 409, movable hole; 50, drive plate; 501, fastener. Detailed Implementation

[0027] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0028] Any reference to prior art in the specification is not and should not be construed as an admission or in any way an implication that such prior art constitutes part of the general common knowledge in the application region or any other jurisdiction, or that such prior art could be reasonably understood and regarded as relevant by a person skilled in the art.

[0029] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for describing embodiments of this disclosure herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0030] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0031] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0032] Unless otherwise stated, the term "multiple" means two or more.

[0033] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0035] Referring to Figures 1 to 12, this disclosure provides an oscillation driving device.

[0036] As shown in Figures 1 to 3, the oscillation drive device includes a base plate 10, a motor 20, an eccentric shaft assembly 30, a drive plate 50, and a fixing mechanism 40. The motor 20 is located below the base plate 10; the eccentric shaft assembly 30 is located above the base plate 10, with one end of the eccentric shaft assembly 30 passing through the base plate 10 and connected to the motor 20; the drive plate 50 is located above the eccentric shaft assembly 30 and connected to the other end of the eccentric shaft assembly 30, and the motor 20 drives the drive plate 50 to move through the eccentric shaft assembly 30; the fixing mechanism 40 defines a limiting part, which cooperates with the eccentric shaft assembly 30 and / or the drive plate 50 to make the drive plate 50 move along a preset trajectory.

[0037] Here, the drive board 50 is used to support the target object to be oscillated.

[0038] Optionally, the target object is a biological sample such as a cell.

[0039] In this embodiment, the motor 20 directly drives the eccentric shaft assembly 30 to rotate. The eccentric shaft assembly 30 can transmit force to the drive plate 50, thereby driving the drive plate 50 to move. The limiting part of the fixing mechanism 40 plays a limiting role, so that the drive plate 50 can move according to a preset trajectory to ensure the oscillation effect.

[0040] Optionally, the eccentric shaft assembly 30 includes an eccentrically arranged rotating shaft 301 and an eccentric shaft 302. The rotating shaft 301 is connected to the motor 20, and the eccentric shaft 302 is connected to the drive plate 50, so that the motor 20 can drive the drive plate 50 to move through the transmission shaft and the eccentric shaft 302.

[0041] Optionally, as shown in Figure 4, the limiting part includes a motion groove, and the drive plate is connected to the fixing mechanism through the motion groove, so that the eccentric shaft assembly drives the drive plate to move along the extension direction of the motion groove. Here, the limiting part cooperates with the drive plate to limit the movement of the drive plate. In this way, the motion groove can limit the movement of the drive plate, thus restricting the movement of the drive plate and preventing it from rotating. This allows the drive plate to perform circular motion under the action of external force, and it can also move along the motion groove, improving the oscillation effect. Here, the motion groove cooperates with the drive plate to limit the movement.

[0042] Optionally, the motion groove includes a first motion groove 403 and a second motion groove 404, the second motion groove 404 intersecting and communicating with the first motion groove 403; the oscillation drive device further includes a fastener 501, one end of which is connected to the drive plate 50, and the fastener 501 is movably located within the first motion groove 403 and the second motion groove 404, so that the drive plate 50 moves along the extension direction of the first motion groove 403 and / or the drive plate 50 moves along the extension direction of the second motion groove 404.

[0043] In this embodiment, one end of the fastener 501 is connected to the drive plate 50, and the fastener 501 is also movably located within the first motion groove 403 and the second motion groove 404. This allows the fastener 501 to drive the drive plate 50 to move along the extension direction of the first motion groove 403 and / or the second motion groove 404, thus limiting the movement trajectory of the drive plate 50 to ensure the oscillation effect of the target object carried by the drive plate 50. Furthermore, the motion grooves restrict the rotation of the drive plate 50, allowing it to translate only along the first motion groove 403 and the second motion groove 404, thereby enabling the drive plate 50 to perform circular motion but not rotation.

[0044] Optionally, the first motion groove 403 and the second motion groove 404 are arranged vertically, which makes the motion amplitude of the drive plate 50 in the plane larger and ensures the oscillation effect.

[0045] Optionally, the first motion groove 403 extends along the length direction of the fixed mechanism 40; the second motion groove 404 extends along the width direction of the fixed mechanism 40. This arrangement of the first motion groove 403 and the second motion groove 404 along the length and width directions of the fixed mechanism 40 facilitates the processing of the motion grooves, ensures the motion amplitude, and improves the oscillation effect.

[0046] Optionally, the fastener 501 is a screw post, and the drive plate 50 is constructed with a first connecting hole. After the screw post passes through the first connecting hole, it is movably disposed in the moving groove and can move along the extension direction of the moving groove under the restriction of the moving groove.

[0047] It is understandable that the limiting function of the motion slot can also be achieved in other ways, such as by connecting an external support rod. The support rod can limit the direction of movement of the drive plate, so that the drive plate can only move in a preset direction and prevent the drive plate from rotating.

[0048] Optionally, as shown in Figures 4 to 6, the fixing mechanism 40 includes a first fixing member 401 and a second fixing member 402. The first fixing member 401 is constructed with a movement groove. The second fixing member 402 is located below the first fixing member 401, and the fastener 501 passes through the movement groove and is connected to the second fixing member 402.

[0049] In this embodiment, the fixing mechanism 40 has a multi-layer structure, with the first fixing member 401 above the second fixing member 402. Thus, the fastener 501 passes through the movement groove of the first fixing member 401 and connects to the second fixing member 402, so that both the upper and lower ends of the fastener 501 can be connected and fixed. When the drive plate 50 moves under the drive of the transmission component, the fastener 501 moves in the movement groove. Thus, the fastener 501 can not only fix the drive plate 50 relatively, but also limit the movement of the drive plate 50, so that the drive plate 50 moves according to a preset trajectory.

[0050] Optionally, as shown in Figures 5 and 6, the fixing mechanism 40 is connected above the base plate 10. The fixing mechanism 40 further includes a first elastic metal strip 405 and a second elastic metal strip 406. The first elastic metal strip 405 extends along the length or width direction of the fixing mechanism 40, with one end connected to the base plate 10 and the other end connected to the first fixing member 401. The second elastic metal strip 406 extends along the length or width direction of the fixing mechanism 40, with one end connected to the second fixing member 402 and the other end connected to the first fixing member 401.

[0051] In this embodiment, the first elastic metal strip 405 extends along the length or width of the fixing mechanism 40, with both ends connected to one end of the base plate 10 and the first fixing member 401, respectively. The first fixing member 401 is thus fixed by the first elastic metal strip 405. The first elastic metal strip 405 has high elasticity and toughness; when the drive plate 50 moves, the force applied by the drive plate 50 to the first fixing member 401 can be partially buffered by the first elastic metal strip 405, preventing breakage and reducing vibration transmission, thereby ensuring the structural strength and stability of the fixing mechanism 40. The second elastic metal strip 406 connects between the first fixing member 401 and the second fixing member 402 of the fixing mechanism 40. This not only secures the second fixing member 402 but also buffers the force transmitted from the first fixing member 401 to the second fixing member 402, preventing breakage or damage.

[0052] In addition, in this embodiment, since the first elastic metal strip 405 and the second elastic metal strip 406 both extend along the length or width of the fixing mechanism 40, that is, the first elastic metal strip 405 and the second elastic metal strip 406 extend in the horizontal plane, the fixing mechanism 40 is not subjected to force in the height direction, which can improve the overall load capacity of the oscillation drive device, greatly increase the load capacity of the drive plate 50, and improve the application range and flexibility of the oscillation drive device.

[0053] Optionally, there are two first elastic metal strips 405, which are located at opposite ends of the fixing mechanism 40. There are also two second elastic metal strips 406, located at the other opposite ends of the fixing structure. In other words, the two first elastic metal strips 405 and the two second elastic metal strips 406 together form an approximately quadrilateral structure.

[0054] Optionally, the second fastener 402 includes a connecting plate that is connected between the same ends of two opposing second elastic metal strips 406.

[0055] Optionally, the motion groove is located at one end of the fixed mechanism 40, so that when the drive plate 50 moves along the motion groove, only one end of the drive plate 50 is restricted by the motion groove, which can avoid multiple parts of the drive plate 50 being restricted and affecting the movement of the drive plate 50.

[0056] Optionally, there are multiple motion slots, which are spaced apart at one end of the fixing mechanism 40. This can improve the limiting effect on the drive plate 50 at one end of the fixing mechanism 40.

[0057] Optionally, the motion slot is located on the left or right side of the fixed mechanism 40.

[0058] Optionally, the fixing mechanism 40 is quadrilateral.

[0059] Optionally, the oscillation drive device further includes a first pad 4051 and a second pad 4061. The first pad 4051 is disposed between the first elastic metal strip 405 and the base plate 10 and / or the first fixing member 401; the second pad 4061 is disposed between the second elastic metal strip 406 and the first fixing member 401 and / or the second fixing member 402.

[0060] In this embodiment, the first pad 4051 can buffer the connection between the first elastic metal strip 405 and the base plate 10, thus buffering the force on the first elastic metal strip 405. Similarly, when the first pad 4051 is disposed between the first elastic metal strip 405 and the first fixing member 401, the first pad 4051 can buffer the force on the first elastic metal strip 405 due to its swing. The second elastic metal strip 406 can buffer the force transmitted between the second elastic metal strip 406 and the second fixing member 402 and / or the first fixing member 401, thus buffering the force on the second elastic metal strip 406 and preventing the second elastic metal strip 406 from breaking or being damaged.

[0061] Optionally, the elastic metal strip includes spring steel strips, high-elasticity alloys, constant-elasticity alloys, etc. Preferably, the elastic metal strip includes spring steel strips.

[0062] Optionally, the first pad 4051 may comprise a copper block, an aluminum block, or an alloy, etc. Preferably, the first pad 4051 comprises a copper block.

[0063] Optionally, the second pad 4061 may comprise a copper block, an aluminum block, or an alloy, etc. Preferably, the second pad 4061 comprises a copper block.

[0064] Optionally, one end of the first elastic metal strip 405 is detachably connected to the base plate 10, and the other end of the first elastic metal strip 405 is detachably connected to the first fixing member 401. This facilitates the disassembly, inspection, and replacement of the first elastic metal strip 405.

[0065] Optionally, one end of the first elastic metal strip 405 is connected to the base plate 10 by screws, and the other end of the first elastic metal strip 405 is connected to the first fixing member 401 by screws.

[0066] Optionally, the fixing mechanism 40 includes a first screw plate, which includes a first plate and a second plate. The first plate and the second plate are L-shaped. The first plate is parallel to the base plate 10 and connected to the base plate 10 by screws. The second plate extends along the height direction and is connected to the first elastic metal strip 405 by screws.

[0067] Optionally, at least a portion of the first pad 4051 is disposed between the first elastic metal strip 405 and the second plate.

[0068] Optionally, the first fastener 401 includes a fastener body 407 and a connecting edge 408. The fastener body 407 is configured with a movement groove, and the connecting edge 408 is connected to the edge of the fastener body 407 and extends downward. The connecting edge 408 is connected to the first elastic metal strip 405. This facilitates the connection between the first fastener 401 and the first elastic metal strip 405.

[0069] Optionally, the connecting edge 408 and the first elastic metal strip 405 are arranged side by side in the horizontal direction, and the connector and the first elastic metal strip 405 are connected by screws.

[0070] Optionally, at least a portion of the first pad 4051 is disposed between the connecting edge 408 and the first elastic metal strip 405.

[0071] Optionally, one end of the second elastic metal strip 406 is detachably connected to the second fixing member 402, and the other end of the second elastic metal strip 406 is detachably connected to the first fixing member 401. This facilitates the disassembly, inspection, and replacement of the second elastic metal strip 406.

[0072] Optionally, one end of the second elastic metal strip 406 is screwed to the second fixing member 402, and the other end of the second elastic metal strip 406 is screwed to the first fixing member 401. This facilitates operation and reduces costs.

[0073] Optionally, the other end of the second elastic metal strip 406 is connected to the connecting edge 408 of the first fastener 401.

[0074] Optionally, the other end of the second elastic metal strip 406 is connected to the connecting edge 408 of the first fastener 401 by a screw.

[0075] Optionally, the fixing mechanism 40 includes a second screw plate, which includes a third plate and a fourth plate. The third plate and the fourth plate are L-shaped. The third plate is parallel to the fixing body 407 and is connected to the fixing body 407 by screws. The fourth plate and the second elastic metal strip 406 are arranged side by side in the horizontal direction and are connected to the second elastic metal strip 406 by screws.

[0076] Optionally, at least a portion of the second pad 4061 is disposed between the second elastic metal strip 406 and the fourth plate.

[0077] Optionally, the other end of the second elastic metal strip 406 is located above the other end of the first elastic metal strip 405.

[0078] Optionally, the other end of the second elastic metal strip 406 and the other end of the first elastic metal strip 405 are connected to the same connecting edge 408.

[0079] Optionally, one end of the second elastic metal strip 406 is abutted against the end of the second fixing member 402, and the second elastic metal strip 406 and the second fixing member 402 are connected by screws.

[0080] Optionally, at least a portion of the second pad 4061 is disposed between the second elastic metal strip 406 and the second fastener 402.

[0081] Optionally, as shown in Figures 4 and 7, the first fixing member 401 is also provided with a movable hole 409, in which the eccentric shaft assembly 30 is movably located. The movable hole 409 can provide a certain amount of space and limit the movement of the eccentric shaft assembly 30, thereby enabling the drive plate 50 to move within a certain range.

[0082] Optionally, the fixing mechanism 40 is located between the base plate 10 and the drive plate 50, so that the oscillation drive device has a three-layer superimposed structure, which can ensure the stability of the oscillation drive device and prevent the oscillation drive device from shaking as a whole during operation.

[0083] Optionally, as shown in Figures 3 and 7 to 11, the base plate 10 is constructed with a through hole 101. The eccentric shaft assembly 30 also includes a bearing housing assembly and a mounting plate 305. The bearing housing assembly includes a first bearing 303 and a second bearing 304. The first bearing 303 is disposed in the through hole 101, and the rotating shaft 301 is rotatably located in the first bearing 303. One end of the rotating shaft 301 is drivenly connected to the motor 20. The mounting plate 305 is located above the base plate 10, and the rotating shaft 301 is located below the mounting plate 305. The mounting plate 305 is drivenly connected to the other end of the rotating shaft 301. The second bearing 304 is connected to the mounting plate 305. The eccentric shaft 302 is rotatably located in the second bearing 304. The eccentric shaft 302 is located above the mounting plate 305, and the other end of the eccentric shaft 302 is connected to the drive plate 50.

[0084] In this embodiment, the rotating shaft 301 is connected below the mounting plate 305, and the eccentric shaft 302 is located above the mounting plate 305. When the motor 20 drives the rotating shaft 301 to rotate, the rotating shaft 301 rotates within the first bearing 303. Since the first bearing 303 is connected to the base plate 10, the rotating shaft 301 can rotate relative to the base plate 10. Furthermore, the first bearing 303 can reduce the friction between the rotating shaft 301 and the base plate 10, thereby reducing noise and transmission loss. After the rotating shaft 301 rotates, it drives the mounting plate 305 to rotate. The mounting plate 305 is connected to the second bearing 304, so the mounting plate 305 can drive the second bearing 304 to rotate together. Since the eccentric shaft 302 is eccentrically set to the rotating shaft 301, and the rotation of the eccentric shaft 302 is located within the second bearing 304, when the second bearing 304 rotates with the mounting plate 305, interference will occur between the second bearing 304 and the eccentric shaft 302. Under the interference of the second bearing 304, the eccentric shaft 302 will also move. This realizes the transmission of force from the motor 20, the rotating shaft 301 to the eccentric shaft 302, so that the eccentric shaft 302 can move. Since the eccentric shaft 302 is connected to the drive plate 50, the eccentric shaft 302 can drive the drive plate 50 to move.

[0085] Optionally, the limiting part includes a movable hole 409, as shown in FIG8. The oscillation driving device also includes a rocker plate fixing plate 308, which is connected between the eccentric shaft 302 and the driving plate 50. The eccentric shaft 302 can drive the driving plate 50 to move through the rocker plate fixing plate 308. The rocker plate fixing plate 308 is movably located within the movable hole 409, and the cross-sectional area of ​​the movable hole 409 is larger than the cross-sectional area of ​​the rocker plate fixing plate 308, so as to restrict the movement of the rocker plate fixing plate 308 within the movable hole 409.

[0086] In this embodiment, the eccentric shaft 302 is connected between the eccentric shaft 302 and the drive plate 50 via a rocker plate fixing plate 308. This rocker plate fixing plate 308 increases the load-bearing area and provides reinforcement. Furthermore, the rocker plate fixing plate 308 is movably positioned within the movable hole 409, thus restricting its movement and preventing excessive movement of the drive plate 50, which could negatively impact the oscillation effect.

[0087] Optionally, both the rocker plate fixing plate 308 and the movable hole 409 are circular.

[0088] It is understandable that the oscillation drive device may not have a movable hole, and the drive plate can still move along a preset trajectory under the limit of the motion groove.

[0089] Optionally, the rocker plate fixing plate 308 is sleeved on the outside of the eccentric shaft 302.

[0090] Optionally, the rocker plate fixing plate 308 is detachably connected to the eccentric shaft 302 to facilitate the maintenance and replacement of the eccentric shaft 302 or the rocker plate fixing plate 308.

[0091] Optionally, the upper part of the eccentric shaft 302 is recessed inward to form a boss, and the rocker plate fixing plate 308 is sleeved on the outside of the boss, and the rocker plate fixing plate 308 is attached to and connected to the bottom wall of the boss, thus realizing the connection between the rocker plate fixing plate 308 and the eccentric shaft 302.

[0092] Optionally, the rocker plate fixing plate 308 is connected to the bottom wall of the boss by screws. For example, as shown in Figure 8, multiple screw holes are provided along the circumference of the eccentric shaft 302 to improve the connection strength and stability between the rocker plate fixing plate 308 and the eccentric shaft 302.

[0093] Optionally, the eccentric shaft 302 is detachably connected to the drive plate 50, which facilitates the inspection and replacement of the drive plate 50 and the eccentric shaft 302.

[0094] Optionally, the top wall of the eccentric shaft 302 abuts against the bottom wall of the drive plate 50 to facilitate the connection between the eccentric shaft 302 and the drive plate 50.

[0095] Optionally, the top wall of the eccentric shaft 302 is connected to the drive plate 50 by screws.

[0096] Optionally, the rocker plate fixing plate 308 and the drive plate 50 can be detachably connected, which facilitates the inspection and replacement of the rocker plate fixing plate 308 and the drive plate 50.

[0097] Optionally, the rocker plate fixing plate 308 is connected to the drive plate 50 by screws.

[0098] Optionally, the rocker plate fixing plate 308 is attached to the underside of the drive plate 50, and the rocker plate fixing plate 308 and the drive plate 50 are connected by screws to improve the connection stability between the rocker plate fixing plate 308 and the drive plate 50.

[0099] Optionally, the first bearing 303 is detachably connected to the base plate 10 to facilitate the inspection and replacement of the first bearing 303.

[0100] Optionally, the first bearing 303 is connected to the base plate 10 by screws.

[0101] Optionally, the upper end of the first bearing 303 is provided with a connecting plate, which abuts against the upper end of the peripheral wall of the through hole 101, and the connecting plate and the peripheral wall of the through hole 101 are connected by screws.

[0102] Optionally, the second bearing 304 is detachably connected to the mounting plate 305, thereby facilitating the removal and replacement of the second bearing 304 and the eccentric shaft 302.

[0103] Optionally, the other end of the rotating shaft 301 is detachably or fixedly connected to the mounting plate 305, so that the rotating shaft 301 can drive the mounting plate 305 to rotate.

[0104] Optionally, as shown in FIG9, the eccentric shaft assembly 30 further includes a first plug 306 and a second plug 307. The first plug 306 is detachably disposed above the mounting plate 305; the second plug 307 is detachably disposed above the mounting plate 305 and together with the first plug 306 encloses a mounting cavity, and the eccentric shaft 302 is disposed in the mounting cavity.

[0105] In this embodiment, the first plug 306 and the second plug 307 enclose a mounting cavity for mounting the eccentric shaft 302. The first plug 306 and the second plug 307 are detachable relative to the mounting plate 305. This allows the position and size of the mounting cavity to be adjusted via the first plug 306 and the second plug 307. The plate can then adjust the position of the eccentric shaft 302 by fixing different plugs to achieve amplitude adjustment. Thus, the eccentric shaft 302 of this oscillation drive device is adjustable, enabling multiple uses from a single unit, reducing costs, and improving operational flexibility.

[0106] Optionally, the first plug 306 and the mounting plate 305 can be detachably connected by screws, clips, or magnets. Preferably, the first plug 306 and the mounting plate 305 are connected by screws.

[0107] Optionally, the second plug 307 and the mounting plate 305 can be detachably connected by screws, clips, or magnets. Preferably, the second plug 307 and the mounting plate 305 are connected by screws.

[0108] Optionally, the cross-section of the mounting cavity matches the second bearing 304. Since the eccentric shaft 302 is located inside the second bearing 304, the mounting cavity is provided with the second bearing 304 and the eccentric shaft 302. The cross-section of the mounting cavity matches the second bearing 304 to facilitate the installation and setting of the second bearing 304.

[0109] Optionally, the first stopper 306 and / or the second stopper 307 are stoppers that have been dynamically balanced. This allows the first stopper 306 and / or the second stopper 307 to be replaced directly without needing to be adapted after replacement. This makes it easy to adapt to different eccentric shafts 302 and achieve different amplitude adjustments.

[0110] Optionally, the number of eccentric shaft 302 and rotation shaft 301 is one.

[0111] In related technologies, multi-eccentric shaft mechanisms require ensuring the concentricity of each eccentric shaft during machining, meaning that the machining errors of multiple eccentric shafts must be consistent. This implies that the precision of at least one eccentric shaft on the same drive unit must be consistent, placing high demands on machining accuracy. In practical applications, it is difficult for a machining plant to accurately control machining errors on the first attempt; multiple machining runs are usually required to accumulate experience. The assembly process of multi-eccentric shaft mechanisms requires accurate positioning of each eccentric shaft, with strict requirements on fit and installation errors. Excessive deviation can cause deceleration or deviation from the circular trajectory at a certain point during rotation, leading to unstable operation and noise in the entire drive system. This instability significantly impacts cell culture. Multi-eccentric shaft structures are also bulky. Multiple eccentric shafts are fixed at one end to the same base plate and at the other end to the drive plate, consisting of two layers with the eccentric shaft in the middle. If the two layers are too close together, a balance block cannot be installed, resulting in poor stability. The design volume is limited.

[0112] In this embodiment, there is only one eccentric shaft 302 and one rotating shaft 301. This allows the entire oscillation drive device to be driven by a single eccentric shaft 302. This simplifies installation, reduces the number of components, and eliminates the need to control the relative positions of multiple eccentric shafts 302, lowering installation difficulty and assembly precision requirements. This ensures overall stability and accurate movement. Furthermore, the size of the oscillation drive device is significantly reduced, minimizing its space requirements and facilitating installation. Additionally, the oscillation drive device in this embodiment has a three-layer structure, providing sufficient space for equipping plugs for dynamic balancing, ensuring smooth movement and eliminating the impact of uneven centrifugal force on cells.

[0113] Optionally, as shown in Figure 12, the oscillation drive device further includes a fixing sleeve 203, which is located below the base plate 10. One end of the fixing sleeve 203 is connected to the motor 20, and the other end of the fixing sleeve 203 is connected to the base plate 10.

[0114] In this embodiment of the disclosure, the motor 20 is connected to the base plate 10 through the fixing sleeve 203, thereby realizing the connection between the motor 20 and the base plate 10.

[0115] Optionally, one end of the rotating shaft 301 is connected to the rotor 201 of the motor 20, so that the rotor 201 of the motor 20 can drive the rotating shaft 301 to rotate.

[0116] Optionally, motor 20 is an external rotor motor.

[0117] Optionally, the motor 20 includes a rotor 201 and a stator 202, with the rotor 201 rotatably disposed outside the stator 202. Both the rotor 201 and the stator 202 are hollow structures. The rotor 201 has a rotating hole at its center, and the inner wall of the rotating hole is constructed with a first tooth. One end of the rotating shaft 301 is constructed with a second tooth. The rotating shaft 301 is located inside the rotating hole, and the rotating shaft 301 meshes with the rotating hole through the first tooth and the second tooth, so that the rotor 201 can drive the rotating shaft 301 to rotate.

[0118] Optionally, the fixing sleeve 203 is cylindrical and is located on the side of the motor 20 facing the base plate 10. The fixing sleeve 203 is coaxially arranged with the rotor 201 and the stator 202. In this way, when the fixing sleeve 203 is connected to the base plate 10, it can ensure that the stator 202 and the rotor 201 of the motor 20 are coaxial and play a role in positioning and fixing the motor 20.

[0119] Optionally, the upper end of the fixing sleeve 203 is detachably connected to the base plate 10. For example, the upper end of the fixing sleeve 203 can be detachably connected to the base plate 10 by screws.

[0120] Optionally, the lower end of the retaining sleeve 203 is detachably connected to the motor 20. For example, the lower end of the retaining sleeve 203 is detachably connected to the motor 20 using screws.

[0121] It should be noted that the detachable connection mentioned in this application can be achieved not only by screw connection, but also by snap-fit, magnetic attraction and other methods. All of these methods are optional embodiments of this application and will not be described in detail here.

[0122] Optionally, the oscillation drive device also includes a damping column 102, which is located below the base plate 10 and is adapted to be connected to an external component.

[0123] In this embodiment of the disclosure, the base plate 10 is provided with a shock-absorbing column 102. The shock-absorbing column 102 can not only connect the base plate 10 with the external components, but also reduce the force transmitted outward by the oscillation drive device, avoid the external components from shaking, and reduce the impact on the external components.

[0124] Optionally, there may be multiple shock absorber columns 102, which are spaced apart along the circumference of the base plate 10 below the base plate 10 to improve the connection strength.

[0125] In this embodiment of the oscillation drive device, the motor is located below the base plate, and the eccentric shaft assembly is located above the base plate. The eccentric shaft assembly can be directly driven by the motor. This direct motor transmission reduces transmission losses and noise. Furthermore, the direct motor drive of the eccentric shaft assembly and drive plate provides high motor torque, effectively overcoming static friction and enabling rapid start-up. The fixing mechanism includes a limiting part, which limits the movement of the drive plate and / or the eccentric shaft assembly. This restricts the movement of the drive plate, preventing it from rotating. The drive plate can then perform circular motion under external force, while the limiting part further enhances the oscillation effect. Additionally, the oscillation drive device includes a base plate, a fixing mechanism, and a drive plate arranged vertically, forming a multi-layered structure of at least three layers. This improves the stability of the oscillation drive device during operation and prevents it from shaking. In this embodiment, the motor directly drives the rotating shaft, and only one eccentric shaft is needed. This eliminates the need to ensure that multiple eccentric shafts have the same machining error, reducing manufacturing difficulty. A single eccentric shaft is easy to install, reduces the number of assembly parts, eliminates the need to control the relative positions of multiple eccentric shafts, lowers the installation difficulty, and ensures the stability of the entire machine, thereby guaranteeing accurate movement.

[0126] This disclosure also provides a culture apparatus, which includes an oscillation drive device as described in any of the above embodiments.

[0127] The culture apparatus provided in this disclosure includes the oscillation driving device of any of the above embodiments, and therefore has the beneficial effects of the oscillation driving device of any of the above embodiments, which will not be repeated here.

[0128] Optionally, the culture device is a shaking incubator. An incubator is a temperature-controlled chamber primarily used for culturing microorganisms, plant and animal cells. Some incubators have a two-way temperature control system for both cooling and heating. They are basic experimental equipment in research departments such as biology, agriculture, medicine, and environmental protection, and are widely used in experiments such as constant-temperature culture and constant-temperature reactions. A shaking incubator refers to an incubator equipped with a shaking drive device.

[0129] Optionally, the culture apparatus includes a housing, with shock-absorbing columns 102 of the base plate 10 connected to the inner bottom wall of the housing by screws. External components include the housing.

[0130] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An oscillation driving device, comprising: Base plate; The motor is located below the base plate; An eccentric shaft assembly is located above the base plate. The eccentric shaft assembly includes an eccentrically positioned rotating shaft and an eccentric shaft. The rotating shaft passes through the base plate and is connected to the motor. The drive plate is located above the eccentric shaft assembly and is connected to the eccentric shaft. A fixing mechanism is located between the drive plate and the base plate. The fixing mechanism defines a limiting part, which cooperates with the eccentric shaft assembly and / or the drive plate to make the eccentric shaft assembly drive plate move along a preset trajectory.

2. The oscillation driving device according to claim 1, wherein, The limiting part includes a motion groove, and the motion groove includes: First motion slot; The second motion groove intersects with and connects with the first motion groove; The oscillation drive device also includes: The fastener is connected at one end to the drive plate and is movably located in the first and second motion grooves so that the drive plate moves along the extension direction of the first motion groove and / or along the extension direction of the second motion groove.

3. The oscillation driving device according to claim 2, wherein, Fixed mechanisms include: The first fixing component has a moving groove. The second fastener is located below the first fastener, and the other end of the fastener passes through the movement groove and connects to the second fastener.

4. The oscillation driving device according to claim 3, wherein, The fixing mechanism is connected to the top of the base plate, and the fixing mechanism also includes: The first elastic metal strip extends along the length or width of the fixing mechanism. One end of the first elastic metal strip is connected to the base plate, and the other end of the first elastic metal strip is connected to the first fixing member. The second elastic metal strip extends along the length or width of the fixing mechanism. One end of the second elastic metal strip is connected to the second fixing member, and the other end of the second elastic metal strip is connected to the first fixing member.

5. The oscillation driving device according to claim 4, further comprising: The first pad is disposed between the first elastic metal strip and the base plate and / or the first fixing member; The second pad is disposed between the second elastic metal strip and the first fixing member and / or the second fixing member.

6. The oscillation driving device according to any one of claims 1 to 5, wherein, The base plate has a through hole, and the eccentric shaft assembly also includes: The bearing housing assembly includes a first bearing and a second bearing. The first bearing is fixedly disposed in the through hole, and the rotating shaft is rotatably located in the first bearing. One end of the rotating shaft is connected to a motor drive. The mounting plate is located above the base plate, the rotating shaft is located below the mounting plate and is driven to the other end of the rotating shaft, and the second bearing is located on the mounting plate and connected to the eccentric shaft; The eccentric shaft rotates within the second bearing, is located above the mounting plate, and its other end is connected to the drive plate.

7. The oscillation driving device according to claim 6, wherein, The fixing mechanism defines the movable hole, the limiting part includes the movable hole, and the oscillation drive device further includes: The rocker plate is connected between the eccentric shaft and the drive plate. The eccentric shaft can drive the drive plate to move through the rocker plate. The rocker plate fixing plate is located within the movable hole, and the cross-sectional area of ​​the movable hole is larger than that of the rocker plate fixing plate to restrict the movement of the rocker plate fixing plate within the movable hole.

8. The oscillation driving device according to claim 6, wherein, The eccentric shaft assembly also includes: The first plug is detachably mounted on top of the mounting plate; The second plug is detachably disposed above the mounting plate and, together with the first plug, encloses a mounting cavity; an eccentric shaft is disposed within the mounting cavity; and / or, There is one eccentric shaft and one rotating shaft.

9. The oscillation driving device according to any one of claims 1 to 8, further comprising: The fixing sleeve is located below the base plate. One end of the fixing sleeve is connected to the motor, and the other end of the fixing sleeve is connected to the base plate. And / or, The damping column is located below the base plate and is suitable for connection with external components.

10. A culture apparatus comprising an oscillation drive device as described in any one of claims 1 to 9.

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