Oscillation driving device and culture device

Abstract

The invention relates to the technical field of experimental instruments, and discloses an oscillation driving device and a culture device. The oscillation driving device includes: a base plate; the motor is arranged below the bottom plate; the eccentric shaft assembly is arranged above the bottom plate, the eccentric shaft assembly comprises a rotating shaft and an eccentric shaft which are eccentrically arranged, and the rotating shaft penetrates through the bottom plate to be connected with the motor; the driving plate is arranged above the eccentric shaft assembly and is connected with the eccentric shaft; and the fixing mechanism is located between the driving plate and the bottom plate, a limiting part is limited by the fixing mechanism, and the limiting part is matched with the eccentric shaft assembly and / or the driving plate so that the eccentric shaft assembly can drive the driving plate to move along a preset track. Therefore, the oscillation driving device is directly driven by the motor, the transmission loss is reduced, and the noise is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of experimental instruments, for example, to an oscillating drive device and a culture device. Background Art

[0002] At present, the oscillation drive structure is mostly a five-eccentric shaft or three-eccentric shaft structure. The drive plate is fixed at three or more points, and a shake bottle fixing clamp is added to the drive plate to achieve an oscillation culture effect.

[0003] In related technologies, multi-eccentric shaft mechanisms mostly use belt drive. The motor is installed between the drive plate and the base plate and is key-connected to the driving wheel. The belt drive increases the torque to the driven large pulley through the large pulley. The large pulley drives the active eccentric shaft to move. The driven eccentric and the active shaft are fixed on the same drive plate and follow the rotational motion.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] In the related art, belt transmission is subject to wear and is prone to loosening over time, and the large number of transmission structures leads to large transmission losses.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide an oscillation driving device and a culture device to reduce transmission loss and improve transmission efficiency.

[0009] An embodiment of the present disclosure provides an oscillation drive device, which includes: a base plate; a motor, which is arranged below the base plate; an eccentric shaft assembly, which is arranged above the base plate, and the eccentric shaft assembly includes an eccentrically arranged rotating shaft and an eccentric shaft, and the rotating shaft passes through the base plate and is connected to the motor; a drive plate, which is arranged above the eccentric shaft assembly and is connected to the eccentric shaft; a fixing mechanism, which is located between the drive plate and the base plate, and the fixing mechanism defines a limiting portion, and the limiting portion cooperates with the eccentric shaft assembly and / or the drive plate to enable the eccentric shaft assembly drive plate to move along a preset trajectory.

[0010] Optionally, the limiting portion includes a motion groove, and the motion groove includes: a first motion groove; a second motion groove, intersecting and connected with the first motion groove; the oscillation drive device also includes: a fastener, one end of which is connected to the drive plate, and the fastener is movably located in the first motion groove and the second motion groove, 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.

[0011] Optionally, the fixing mechanism includes: a first fixing member, which is configured with a movement groove; a second fixing member, which is located below the first fixing member, and the other end of the fastener passes through the movement groove and is connected to the second fixing member.

[0012] Optionally, the fixing mechanism is connected above the base plate, and the fixing mechanism also includes: a first elastic metal strip extending along the length or width direction of the fixing mechanism, one end of the first elastic metal strip being connected to the base plate, and the other end of the first elastic metal strip being connected to the first fixing member; a second elastic metal strip extending along the length or width direction of the fixing mechanism, one end of the second elastic metal strip being connected to the second fixing member, and the other end of the second elastic metal strip being connected to the first fixing member.

[0013] Optionally, the oscillation drive device further includes: a first cushion block, arranged between the first elastic metal strip and the bottom plate and / or the first fixing member; and a second cushion block, arranged between the second elastic metal strip and the first fixing member and / or the second fixing member.

[0014] Optionally, the base plate is constructed with a through hole, and the eccentric shaft assembly also includes: a bearing seat assembly, including a first bearing and a second bearing, the first bearing is fixed in the through hole, the rotating shaft is rotatably located in the first bearing, and one end of the rotating shaft is connected to the motor drive; a mounting plate, located above the base plate, the rotating shaft is located below the mounting plate, and is drivingly connected to the other end of the rotating shaft, the second bearing is arranged on the mounting plate and connected to the eccentric shaft adjustment plate; wherein the eccentric shaft is rotatably located in the second bearing, the eccentric shaft is located above the mounting plate, and the other end of the eccentric shaft is connected to the drive plate.

[0015] Optionally, the fixing mechanism defines a movable hole, the limiting portion includes the movable hole, and the oscillation drive device also includes: a rocking plate fixing plate, connected between the eccentric shaft and the driving plate, and the eccentric shaft can drive the driving plate to move through the rocking plate fixing plate; wherein, the rocking plate fixing plate is movably located in the movable hole, and the cross-sectional area of ​​the movable hole is larger than the cross-sectional area of ​​the rocking plate fixing plate, so as to limit the movement of the rocking plate fixing plate in the movable hole.

[0016] Optionally, the eccentric shaft assembly also includes: a first plug block, which is detachably arranged above the mounting plate; a second plug block, which is detachably arranged above the mounting plate and encloses a mounting cavity with the first plug block, and the eccentric shaft is arranged in the mounting cavity; and / or, the number of the eccentric shaft and the rotating shaft are both one.

[0017] Optionally, the oscillation drive device also includes: a fixed sleeve, located below the base plate, one end of the fixed sleeve is connected to the motor, and the other end of the fixed sleeve is connected to the base plate; and / or, a shock-absorbing column, arranged below the base plate, the shock-absorbing column is suitable for connecting to an external component.

[0018] The disclosed embodiment also provides a culture device, which includes an oscillation drive device as described in any one of the above embodiments.

[0019] The oscillation drive device and the culture device provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] In the oscillation drive device of the embodiment of the present disclosure, the motor is arranged below the bottom plate, the eccentric shaft assembly is arranged above the bottom plate, and the eccentric shaft assembly can be directly connected to the motor, so that the oscillation drive device is directly driven by the motor, which reduces the transmission loss and noise. Moreover, the motor directly drives the eccentric shaft assembly and the drive plate, and the motor torque is large, which can more effectively overcome the static friction and achieve rapid start-up. The fixing mechanism is structured with a limiting portion, which can limit the movement of the drive plate and / or the eccentric shaft assembly, so that the movement of the drive plate is limited, and the self-rotation of the drive plate can be avoided. In this way, the drive plate can perform circular motion under the action of external force, and can also move under the action of the limiting portion, thereby improving the oscillation effect. In addition, the oscillation drive device includes a bottom plate, a fixing mechanism and a drive plate arranged up and down, so that a multi-layer superposition structure of at least three layers can be formed, which improves the stability of the vibration drive device during operation and avoids the shaking of the oscillation drive device. In the embodiment of the present disclosure, the motor directly drives the rotating shaft, and only one eccentric shaft can be provided, so that there is no need to ensure that the processing errors of multiple eccentric shafts are the same, and the processing difficulty is reduced. An eccentric shaft is easy to install, the number of assembly parts is reduced, there is no need to control the relative positions of multiple eccentric shafts, the installation difficulty is reduced, the stability of the whole machine is guaranteed, and the movement accuracy is guaranteed.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a structural schematic diagram of an oscillation driving device provided by an embodiment of the present disclosure from one perspective;

[0024] Figure 2 is a schematic structural diagram of an oscillation driving device provided by an embodiment of the present disclosure from another perspective;

[0025] Figure 3 is a schematic diagram of an exploded structure of an oscillation drive device provided by an embodiment of the present disclosure;

[0026] Figure 4 is a structural schematic diagram of a fixing mechanism provided by an embodiment of the present disclosure from one perspective;

[0027] Figure 5 is a structural schematic diagram of a fixing mechanism provided by an embodiment of the present disclosure from another perspective;

[0028] Figure 6 is a partial structural schematic diagram of a fixing mechanism provided in an embodiment of the present disclosure;

[0029] Figure 7 is a structural schematic diagram of an eccentric shaft assembly provided by an embodiment of the present disclosure;

[0030] Figure 8 is a partial structural schematic diagram of another eccentric shaft assembly provided by an embodiment of the present disclosure;

[0031] Fig. 9 is a partial structural schematic diagram of another eccentric shaft assembly provided by an embodiment of the present disclosure;

[0032] Fig.10 is a schematic cross-sectional structure diagram of an oscillation driving device provided by an embodiment of the present disclosure;

[0033] Fig.11 is a partial structural schematic diagram of another eccentric shaft assembly provided by an embodiment of the present disclosure;

[0034] Fig.12 It is a schematic diagram of the matching structure of the motor, the fixed sleeve and the rotating shaft provided in the embodiment of the present disclosure.

[0035] Reference numerals:

[0036] 10. Base plate; 101. Through hole; 102. Shock 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 cushion block; 406. Second elastic metal strip; 4061. Second cushion block; 407. Fixing member body; 408. Connecting edge; 409. Movable hole; 50. Driving plate; 501. Fastener. DETAILED DESCRIPTION

[0037] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0038] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to describe the disclosed embodiments here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0039] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0040] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" 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, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0041] Unless otherwise stated, the term "plurality" means two or more.

[0042] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0044] Combination Figures 1 to 12 As shown, the embodiment of the present disclosure provides an oscillation driving device, such as Figures 1 to 3 As shown, 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 arranged below the base plate 10; the eccentric shaft assembly 30 is arranged above the base plate 10, and one end of the eccentric shaft assembly 30 passes through the base plate 10 and is connected to the motor 20; the drive plate 50 is arranged above the eccentric shaft assembly 30 and is 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 portion, and the limiting portion cooperates with the eccentric shaft assembly 30 and / or the drive plate 50 to enable the drive plate 50 to move along a preset trajectory.

[0045] Here, the driving plate 50 is used to carry the target object to be oscillated.

[0046] Optionally, the target object is a biological sample such as a cell.

[0047] In the disclosed embodiment, the motor 20 directly drives the eccentric shaft assembly 30 to rotate, and 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.

[0048] 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 .

[0049] Alternatively, if Figure 4 As shown, the limiting part includes a motion groove, and the driving plate is connected to the fixing mechanism through the motion groove, so that the eccentric shaft assembly drives the driving plate to move along the extension direction of the motion groove. Here, the limiting part cooperates with the driving plate to achieve the motion limitation of the driving plate. In this way, the motion groove can play a limiting role with the movement of the driving plate, so that the movement of the driving plate is restricted, and the driving plate can be prevented from rotating. In this way, the driving plate can perform circular motion under the action of external force, and it can also move along the motion groove to improve the oscillation effect. Here, the motion groove cooperates with the driving plate to limit.

[0050] Optionally, the motion groove includes a first motion groove 403 and a second motion groove 404, and the second motion groove 404 intersects and is connected to the first motion groove 403; the oscillation driving device also includes a fastener 501, one end of the fastener 501 is connected to the driving plate 50, and the fastener 501 is movably located in the first motion groove 403 and the second motion groove 404, so that the driving plate 50 moves along the extension direction of the first motion groove 403 and / or the driving plate 50 moves along the extension direction of the second motion groove 404.

[0051] In the disclosed embodiment, one end of the fastener 501 is connected to the driving plate 50, and the fastener 501 is also movably located in the first motion groove 403 and the second motion groove 404, so that the fastener 501 can drive the driving plate 50 to move along the extension direction of the first motion groove 403 and / or the second motion groove 404, so that the motion trajectory of the driving plate 50 can be limited to ensure the oscillation effect of the target object carried by the driving plate 50. In addition, the motion groove can limit the rotation of the driving plate 50, so that the driving plate 50 can only translate along the first motion groove 403 and the second motion groove 404, thereby allowing the driving plate 50 to make a circular motion but not rotate.

[0052] Optionally, the first movement groove 403 and the second movement groove 404 are vertically arranged, so that the movement amplitude of the driving plate 50 in the plane is larger, thereby ensuring the oscillation effect.

[0053] Optionally, the first motion groove 403 extends along the length direction of the fixing mechanism 40, and the second motion groove 404 extends along the width direction of the fixing mechanism 40. In this way, the first motion groove 403 and the second motion groove 404 are arranged according to the length and width directions of the fixing mechanism 40, which facilitates the processing of the motion grooves, ensures the motion amplitude, and improves the oscillation effect.

[0054] Optionally, the fastener 501 is a screw column, and the driving plate 50 is configured with a first connecting hole. After passing through the first connecting hole, the screw column is movably disposed in the motion groove and can move along the extension direction of the motion groove under the restriction of the motion groove.

[0055] It is understandable that the limiting function of the motion groove can also be achieved in other forms, such as by externally connecting a support rod, which can limit the movement direction of the drive plate so that the drive plate can only move in a preset direction to prevent the drive plate from rotating.

[0056] Alternatively, if Figures 4 to 6 As shown, the fixing mechanism 40 includes a first fixing member 401 and a second fixing member 402 . The first fixing member 401 is configured with a motion groove. The second fixing member 402 is located below the first fixing member 401 . The fastener 501 passes through the motion groove and is connected to the second fixing member 402 .

[0057] In the disclosed embodiment, the fixing mechanism 40 is a multi-layer structure, and the first fixing member 401 is above the second fixing member 402, so that the fastener 501 passes through the motion groove of the first fixing member 401 and is connected to the second fixing member 402, so that the upper and lower ends of the fastener 501 can be connected and fixed, and when the driving plate 50 moves driven by the transmission component, the fastener 501 moves in the motion groove, so that the fastener 501 can not only relatively fix the driving plate 50, but also limit the movement of the driving plate 50, so that the driving plate 50 moves according to the preset trajectory.

[0058] Alternatively, if Figure 5 and Figure 6 As shown, the fixing mechanism 40 is connected above the bottom plate 10, and the fixing mechanism 40 also 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, one end of the first elastic metal strip 405 is connected to the bottom plate 10, and the other end of the first elastic metal strip 405 is 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, one end of the second elastic metal strip 406 is connected to the second fixing member 402, and the other end of the second elastic metal strip 406 is connected to the first fixing member 401.

[0059] In the disclosed embodiment, the first elastic metal strip 405 extends along the length or width direction of the fixing mechanism 40, so that the two ends of the first elastic metal strip 405 are respectively connected to one end of the bottom plate 10 and the first fixing member 401, so that the first fixing member 401 is fixed by the first elastic metal strip 405, and the first elastic metal strip 405 has high elasticity and toughness. When the driving plate 50 moves, the force applied by the driving plate 50 to the first fixing member 401 can be partially buffered by the first elastic metal strip 405, thereby avoiding the first elastic metal strip 405 from breaking or being damaged, reducing the transmission of vibration, and thus ensuring the structural strength and stability of the fixing mechanism 40. The second elastic metal strip 406 is connected between the first fixing member 401 and the second fixing member 402 of the fixing mechanism 40, so that not only the second fixing member 402 can be fixed, but also the second elastic metal strip 406 can buffer the force transmitted from the first fixing member 401 to the second fixing member 402, thereby avoiding the second elastic metal strip 406 from breaking or being damaged.

[0060] In addition, in the embodiment of the present disclosure, since the first elastic metal strip 405 and the second elastic metal strip 406 both extend along the length or width direction 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 improve the load capacity of the drive plate 50, and improve the use range and flexibility of the oscillation drive device.

[0061] Optionally, the number of the first elastic metal strips 405 is two, and the two first elastic metal strips 405 are disposed at two opposite ends of the fixing mechanism 40. The number of the second elastic metal strips 406 is two, and the two second elastic metal strips 406 are disposed at the other two opposite ends of the fixing structure. In other words, the two first elastic metal strips 405 and the two second elastic metal strips 406 enclose a structure that is approximately quadrilateral.

[0062] Optionally, the second fixing member 402 includes a connecting plate, and the connecting plate is connected between the same ends of two second elastic metal strips 406 that are oppositely arranged.

[0063] Optionally, the motion groove is located at one end of the fixing mechanism 40 , so that when the driving plate 50 moves along the motion groove, only one end of the driving plate 50 is restricted by the motion groove, which can avoid restricting multiple parts of the driving plate 50 and affecting the movement of the driving plate 50 .

[0064] Optionally, there are multiple movement grooves, and the multiple movement grooves are arranged at intervals at one end of the fixing mechanism 40 , so that the limiting effect on the driving plate 50 can be improved at one end of the fixing mechanism 40 .

[0065] Optionally, the movement slot is provided on the left side or the right side of the fixing mechanism 40 .

[0066] Optionally, the fixing mechanism 40 is in a quadrilateral shape.

[0067] Optionally, the oscillation drive device also includes a first pad 4051 and a second pad 4061, the first pad 4051 is arranged between the first elastic metal strip 405 and the base plate 10 and / or the first fixing member 401; the second pad 4061 is arranged between the second elastic metal strip 406 and the first fixing member 401 and / or the second fixing member 402.

[0068] In the disclosed embodiment, the first cushion block 4051 can buffer the connection between the first elastic metal strip 405 and the bottom plate 10, buffering the force exerted on the first elastic metal strip 405. Similarly, when the first cushion block 4051 is disposed between the first elastic metal strip 405 and the first fixing member 401, the first cushion block 4051 can buffer the force exerted on the first elastic metal strip 405 when it swings. 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, buffer the force exerted on the second elastic metal strip 406, and prevent the second elastic metal strip 406 from breaking or being damaged.

[0069] Optionally, the elastic metal strip comprises a spring steel strip, a high elastic alloy, a constant elastic alloy, etc. Preferably, the elastic metal strip comprises a spring steel strip.

[0070] Optionally, the first cushion block 4051 includes a copper block, an aluminum block or an alloy, etc. Preferably, the first cushion block 4051 includes a copper block.

[0071] Optionally, the second cushion block 4061 includes a copper block, an aluminum block or an alloy, etc. Preferably, the second cushion block 4061 includes a copper block.

[0072] Optionally, one end of the first elastic metal strip 405 is detachably connected to the bottom 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, maintenance and replacement of the first elastic metal strip 405.

[0073] Optionally, one end of the first elastic metal strip 405 is connected to the bottom plate 10 by means of screws, and the other end of the first elastic metal strip 405 is connected to the first fixing member 401 by means of screws.

[0074] Optionally, the fixing mechanism 40 includes a first screw plate, the first screw plate includes a first plate member and a second plate member, the first plate member and the second plate member are L-shaped, the first plate member is parallel to the base plate 10 and is connected to the base plate 10 by screws, the second plate member extends in the height direction, and the second plate member is connected to the first elastic metal strip 405 by screws.

[0075] Optionally, at least part of the first cushion block 4051 is disposed between the first elastic metal strip 405 and the second plate.

[0076] Optionally, the first fixing member 401 includes a fixing member body 407 and a connecting edge 408, the fixing member body 407 is configured with a movement groove, the connecting edge 408 is connected to the edge of the fixing member body 407 and extends downward, and the connecting edge 408 is connected to the first elastic metal strip 405. In this way, the first fixing member 401 is easily connected to the first elastic metal strip 405.

[0077] Optionally, the connecting edge 408 and the first elastic metal strip 405 are arranged side by side in the horizontal direction, and the connecting member and the first elastic metal strip 405 are connected by screws.

[0078] Optionally, at least a portion of the first cushion block 4051 is disposed between the connecting edge 408 and the first elastic metal strip 405 .

[0079] 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, maintenance and replacement of the second elastic metal strip 406.

[0080] 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 is convenient for operation and has low cost.

[0081] Optionally, the other end of the second elastic metal strip 406 is connected to the connecting edge 408 of the first fixing member 401 .

[0082] Optionally, the other end of the second elastic metal strip 406 is connected to the connecting edge 408 of the first fixing member 401 by means of screws.

[0083] Optionally, the fixing mechanism 40 includes a second screw plate, the second screw plate 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 the third plate 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 the fourth plate and the second elastic metal strip 406 are connected by screws.

[0084] Optionally, at least part of the second cushion block 4061 is disposed between the second elastic metal strip 406 and the fourth plate.

[0085] Optionally, the other end of the second elastic metal strip 406 is located above the other end of the first elastic metal strip 405 .

[0086] 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 .

[0087] Optionally, one end of the second elastic metal strip 406 is abutted against an end of the second fixing member 402 , and the second elastic metal strip 406 and the second fixing member 402 are connected by screws.

[0088] Optionally, at least a portion of the second cushion block 4061 is disposed between the second elastic metal strip 406 and the second fixing member 402 .

[0089] Alternatively, if Figure 4 and Figure 7 As shown, the first fixing member 401 is also constructed with a movable hole 409, and the eccentric shaft assembly 30 is movably located in the movable hole 409. The movable hole 409 can provide a certain movable space and limit the movement of the eccentric shaft assembly 30, thereby allowing the driving plate 50 to move within a certain range.

[0090] Optionally, the fixing mechanism 40 is located between the base plate 10 and the driving plate 50, so that the oscillation driving device has a three-layer stacked structure, which can ensure the stability of the oscillation driving device and prevent the oscillation driving device from shaking as a whole during operation.

[0091] Alternatively, if Figure 3 , Figures 7 to 11As shown, the base plate 10 is constructed with a through hole 101, and the eccentric shaft assembly 30 also includes a bearing seat assembly and a mounting plate 305. The bearing seat assembly includes a first bearing 303 and a second bearing 304. The first bearing 303 is arranged in the through hole 101, and the rotating shaft 301 is rotatably located in the first bearing 303, and one end of the rotating shaft 301 is drive-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 drive-connected to the other end of the rotating shaft 301, and the second bearing 304 is connected to the mounting plate 305; wherein, 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.

[0092] In the disclosed embodiment, the rotating shaft 301 is connected to the bottom of 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 in the first bearing 303. Since the first bearing 303 is connected to the bottom plate 10, the rotating shaft 301 can rotate relative to the bottom plate 10, and the first bearing 303 can reduce the friction between the rotating shaft 301 and the bottom plate 10, thereby reducing noise and transmission loss. After the rotating shaft 301 rotates, the rotating shaft 301 drives the mounting plate 305 to rotate, and the mounting plate 305 is connected to the second bearing 304, so that the mounting plate 305 can drive the second bearing 304 to rotate together. Since the eccentric shaft 302 is eccentrically arranged with the rotating shaft 301, and the eccentric shaft 302 rotates and is located in the second bearing 304, when the second bearing 304 rotates with the mounting plate 305, the second bearing 304 and the eccentric shaft 302 will interfere with each other, so that the eccentric shaft 302 will also move under the interference of the second bearing 304. In this way, the transmission of force from the motor 20 and the rotating shaft 301 to the eccentric shaft 302 is realized, so that the eccentric shaft 302 can move. Since the eccentric shaft 302 is connected to the driving plate 50, the eccentric shaft 302 can drive the driving plate 50 to move.

[0093] Optionally, the limiting portion includes a movable hole 409, such as Figure 8 As shown, the oscillation drive device also includes a rocking plate fixing plate 308, which is connected between the eccentric shaft 302 and the driving plate 50, and the eccentric shaft 302 can drive the driving plate 50 to move through the rocking plate fixing plate 308; wherein, the rocking plate fixing plate 308 is movably located in the movable hole 409, and the cross-sectional area of ​​the movable hole 409 is larger than the cross-sectional area of ​​the rocking plate fixing plate 308, so as to limit the movement of the rocking plate fixing plate 308 in the movable hole 409.

[0094] In the embodiment of the present disclosure, the eccentric shaft 302 is connected between the eccentric shaft 302 and the driving plate 50 through the rocking plate fixing plate 308, so that the rocking plate fixing plate 308 increases the load-bearing area and strengthens the plate. Moreover, the rocking plate fixing plate 308 is movable in the movable hole 409, so that the rocking plate fixing plate 308 can be restricted by the movable hole 409 to avoid excessive movement of the rocking plate fixing plate 308, which causes the driving plate 50 to move more widely and affects the oscillation effect.

[0095] Optionally, the rocker plate fixing plate 308 and the movable hole 409 are both circular.

[0096] It can be understood that the oscillation driving device may not be provided with a movable hole, and the driving plate can also move along a preset trajectory under the limitation of the moving groove.

[0097] Optionally, the rocker plate fixing plate 308 is sleeved on the outer side of the eccentric shaft 302 .

[0098] Optionally, the rocking plate fixing plate 308 is detachably connected to the eccentric shaft 302 to facilitate inspection and replacement of the eccentric shaft 302 or the rocking plate fixing plate 308 .

[0099] Optionally, the upper portion of the eccentric shaft 302 is recessed inward to form a boss, the rocking plate fixing plate 308 is sleeved on the outside of the boss, and the rocking plate fixing plate 308 is abutted against and connected to the bottom wall of the boss, thereby achieving the connection between the rocking plate fixing plate 308 and the eccentric shaft 302.

[0100] Optionally, the rocker plate fixing plate 308 is connected to the bottom wall of the boss by screws. Figure 8 As shown, a plurality of screw holes are arranged 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 .

[0101] Optionally, the eccentric shaft 302 is detachably connected to the driving plate 50 , which facilitates the inspection and replacement of the driving plate 50 and the eccentric shaft 302 .

[0102] Optionally, the top wall of the eccentric shaft 302 is against the bottom wall of the driving plate 50 to facilitate the connection between the eccentric shaft 302 and the driving plate 50 .

[0103] Optionally, the top wall of the eccentric shaft 302 is connected to the driving plate 50 by screws.

[0104] Optionally, the rocking plate fixing plate 308 and the driving plate 50 are detachably connected, which facilitates the inspection and replacement of the rocking plate fixing plate 308 and the driving plate 50 .

[0105] Optionally, the rocker plate fixing plate 308 is connected to the driving plate 50 by screws.

[0106] Optionally, the rocking plate fixing plate 308 is abutted against the bottom of the driving plate 50 , and the rocking plate fixing plate 308 and the driving plate 50 are connected by screws to improve the connection stability between the rocking plate fixing plate 308 and the driving plate 50 .

[0107] Optionally, the first bearing 303 is detachably connected to the base plate 10 to facilitate inspection and replacement of the first bearing 303 .

[0108] Optionally, the first bearing 303 is connected to the base plate 10 by screws.

[0109] Optionally, a connecting plate is constructed at the upper end of the first bearing 303, the connecting plate is abutted 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.

[0110] Optionally, the second bearing 304 is detachably connected to the mounting plate 305 , thereby facilitating the disassembly and replacement of the second bearing 304 and the eccentric shaft 302 .

[0111] Optionally, the other end of the rotating shaft 301 is detachably connected or fixedly connected to the mounting plate 305, so that the rotating shaft 301 can drive the mounting plate 305 to rotate.

[0112] Alternatively, if Fig. 9 As shown, the eccentric shaft assembly 30 also 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 encloses a mounting cavity with the first plug 306, and the eccentric shaft 302 is disposed in the mounting cavity.

[0113] In the embodiment of the present disclosure, 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 can be detachably mounted relative to the mounting plate 305, so that the position and size of the mounting cavity can be adjusted by the first plug 306 and the second plug 307, so that the plate can adjust the position of the eccentric shaft 302 by fixing different plugs to achieve the purpose of adjusting the amplitude. The eccentric shaft 302 of such an oscillating drive device can be adjusted, thereby achieving multiple uses, reducing costs and improving flexibility of use.

[0114] Optionally, the first plug 306 and the mounting plate 305 can be detachably connected by means of screws, buckles or magnetism, etc. Preferably, the first plug 306 and the mounting plate 305 are connected by screws.

[0115] Optionally, the second plug 307 and the mounting plate 305 can be detachably connected by means of screws, buckles or magnetic attraction, etc. Preferably, the second plug 307 and the mounting plate 305 are connected by screws.

[0116] Optionally, the cross-section of the mounting cavity matches the second bearing 304 . Since the eccentric shaft 302 is located in the second bearing 304 , the second bearing 304 and the eccentric shaft 302 are provided in the mounting cavity. The cross-section of the mounting cavity matches the second bearing 304 to facilitate the installation and setting of the second bearing 304 .

[0117] Optionally, the first block 306 and / or the second block 307 are blocks that have been dynamically balanced, so that the first block 306 and / or the second block 307 can be directly replaced without the need for adaptation after replacement, and different eccentric shafts 302 can be easily adapted to achieve adjustment of different amplitudes.

[0118] Optionally, the number of the eccentric shaft 302 and the number of the rotating shaft 301 are both one.

[0119] In the related art, the multi-eccentric shaft mechanism needs to ensure the concentricity of each eccentric shaft during processing, that is, the processing errors of multiple eccentric shafts are consistent, that is, the precision of the eccentric shafts on at least one drive must be consistent, which requires high processing accuracy. In practical applications, it is difficult for the processing plant to accurately control the processing error in the first processing, and it usually takes multiple processing to summarize the processing experience. The assembly process of the multi-eccentric shaft mechanism requires the accurate position of each eccentric shaft, and there are requirements for matching and installation errors. If the deviation is too large, the rotary motion will decelerate or deviate from the running trajectory (circle) when it reaches a certain point, causing the entire drive system to run unsteadily and generate noise, which has a great impact on cultured cells. The multi-eccentric shaft structure is large in size. One end of the multiple eccentric shafts is fixed on the same base plate, and the other end is fixed on the drive plate, that is, the upper and lower layers of the plate, with the eccentric shaft 3 in the middle. If the two layers of the plate are compact, the balance block cannot be installed, and the stability is not good. The design volume is limited.

[0120] In the embodiment of the present disclosure, the number of the eccentric shaft 302 and the rotating shaft 301 is one, so that the entire oscillation drive device can be driven by one eccentric shaft 302. In this way, the single eccentric shaft 302 is easy to install, the number of components is small, and there is no need to control the relative positions of multiple eccentric shafts 302, which reduces the difficulty of installation and the requirements for assembly accuracy, so that the stability of the whole machine is guaranteed and the movement is accurate. Moreover, the volume of the oscillation drive device is greatly reduced, which reduces the space occupied by the oscillation drive device and facilitates the installation of the oscillation drive device. In addition, the oscillation drive device of the embodiment of the present disclosure is a three-layer structure, which can provide sufficient space to be equipped with a plug for dynamic balancing, and the movement is smooth to eliminate the influence of uneven centrifugal force on cells.

[0121] Alternatively, if Fig.12 As shown, the oscillation driving device further includes a fixing sleeve 203 , which is located below the bottom 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 bottom plate 10 .

[0122] In the disclosed embodiment, the motor 20 is connected to the base plate 10 via the fixing sleeve 203 , thereby achieving connection between the motor 20 and the base plate 10 .

[0123] 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.

[0124] Optionally, the motor 20 is an outer rotor 201 motor 20 .

[0125] Optionally, the motor 20 includes a rotor 201 and a stator 202, wherein the rotor 201 is rotatably arranged outside the stator 202. Both the rotor 201 and the stator 202 are hollow structures, a rotating hole is arranged at the center of the rotor 201, a first tooth portion is arranged on the inner wall surface of the rotating hole, a second tooth portion is arranged at one end of the rotating shaft 301, the rotating shaft 301 is located in the rotating hole, and the rotating shaft 301 is meshed with the rotating hole through the first tooth portion and the second tooth portion, so that the rotor 201 can drive the rotating shaft 301 to rotate.

[0126] Optionally, the fixing sleeve 203 is cylindrical and is arranged on the side of the motor 20 facing the base plate 10, and 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.

[0127] Optionally, the upper end of the fixing sleeve 203 is detachably connected to the bottom plate 10. For example, the upper end of the fixing sleeve 203 is detachably connected to the bottom plate 10 by screws.

[0128] Optionally, the lower end of the fixing sleeve 203 is detachably connected to the motor 20. For example, the lower end of the fixing sleeve 203 is detachably connected to the motor 20 using screws.

[0129] It should be noted that the detachable connection improved in the present application can be detachably connected by means of snap fasteners, magnets, etc., in addition to screw connections. All optional embodiments of the present application that can achieve the detachable effect will not be described in detail here.

[0130] Optionally, the oscillation driving device further includes a shock absorbing column 102 , which is disposed below the base plate 10 , and the shock absorbing column 102 is suitable for being connected to an external component.

[0131] In the disclosed embodiment, the base plate 10 is provided with a shock absorbing column 102, which can not only realize the connection between the base plate 10 and the external components, but also reduce the force transmitted outward by the oscillation driving device, avoid the shaking of the external components, and reduce the impact on the external components.

[0132] Optionally, there are multiple shock-absorbing columns 102 , and the multiple shock-absorbing columns 102 are arranged below the bottom plate 10 at intervals along the circumference of the bottom plate 10 to improve the connection strength.

[0133] The disclosed embodiments further provide a culture device, which includes an oscillating drive device according to any one of the above embodiments.

[0134] The culture device provided in the embodiment of the present disclosure includes the oscillation driving device of any one of the above embodiments, and thus has the beneficial effects of any one of the above oscillation driving devices, which will not be described in detail here.

[0135] Optionally, the culture device is an oscillating incubator. An incubator is a temperature-controllable box device mainly used to culture microorganisms, plants and animal cells. Some have a two-way temperature control system for cooling and heating. It is a basic experimental equipment for scientific research departments such as biology, agriculture, medicine, and environmental protection, and is widely used in constant temperature culture, constant temperature reaction and other experiments. An oscillating incubator refers to an incubator with an oscillating drive device.

[0136] Optionally, the culture device includes a box body, and the shock-absorbing column 102 of the bottom plate 10 is connected to the inner bottom wall of the box body by screws. The external component includes a box body.

[0137] The above description and the accompanying drawings sufficiently illustrate the 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. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The 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 the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An oscillation driving device, characterized in that: include: Base plate; A motor is arranged below the bottom plate; An eccentric shaft assembly is arranged above the bottom plate, and the eccentric shaft assembly includes an eccentrically arranged rotating shaft and an eccentric shaft, and the rotating shaft passes through the bottom plate and is connected to the motor; A driving plate is arranged above the eccentric shaft assembly and connected to the eccentric shaft; The fixing mechanism is located between the driving plate and the bottom plate. The fixing mechanism defines a limiting portion, and the limiting portion cooperates with the eccentric shaft assembly and / or the driving plate to enable the eccentric shaft assembly driving plate to move along a preset trajectory.

2. The oscillation drive device according to claim 1, characterized in that: The limiting part includes a motion groove, and the motion groove includes: First movement slot; A second motion groove intersecting and communicating with the first motion groove; The oscillation drive device also includes: One end of the fastener is connected to the driving plate, and the fastener is movably located in the first motion groove and the second motion groove, so that the driving 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 drive device according to claim 2, characterized in that: The fixing mechanism includes: A first fixing member is configured with a movement slot; The second fixing member is located below the first fixing member, and the other end of the fastener passes through the movement slot and is connected with the second fixing member.

4. The oscillation drive device according to claim 3, characterized in that: The fixing mechanism is connected above the bottom plate, and the fixing mechanism also includes: A first elastic metal strip extending along the length or width direction of the fixing mechanism, one end of the first elastic metal strip being connected to the bottom plate, and the other end of the first elastic metal strip being connected to the first fixing member; The second elastic metal strip extends along the length or width direction of the fixing mechanism, one end of the second elastic metal strip is connected to the second fixing piece, and the other end of the second elastic metal strip is connected to the first fixing piece.

5. The oscillation drive device according to claim 4, characterized in that: Also includes: A first cushion block is provided between the first elastic metal strip and the bottom plate and / or the first fixing member; The second cushion block is arranged between the second elastic metal strip and the first fixing member and / or the second fixing member.

6. The oscillation driving device according to claim 1, characterized in that: The bottom plate is constructed with a through hole, and the eccentric shaft assembly also includes: The bearing seat assembly comprises a first bearing and a second bearing, wherein the first bearing is fixedly disposed in the through hole, the rotating shaft is rotatably disposed in the first bearing, and one end of the rotating shaft is connected to the motor drive; The mounting plate is located above the bottom plate, the rotating shaft is located below the mounting plate and is drivingly connected to the other end of the rotating shaft, and the second bearing is arranged on the mounting plate and connected to the eccentric shaft adjustment plate; The eccentric shaft rotates in the second bearing, the eccentric shaft is located above the mounting plate, and the other end of the eccentric shaft is connected to the driving plate.

7. The oscillation drive device according to claim 6, characterized in that: The fixing mechanism defines a movable hole, the limiting portion includes the movable hole, and the oscillation driving device further includes: The rocking plate fixing plate is connected between the eccentric shaft and the driving plate, and the eccentric shaft can drive the driving plate to move through the rocking plate fixing plate; The rocking plate fixing plate is movably located in the movable hole, and the cross-sectional area of ​​the movable hole is larger than the cross-sectional area of ​​the rocking plate fixing plate, so as to limit the movement of the rocking plate fixing plate in the movable hole.

8. The oscillation drive device according to claim 6, characterized in that: The eccentric shaft assembly also includes: A first plug block is detachably disposed above the mounting plate; The second plug is detachably disposed above the mounting plate and encloses a mounting cavity with the first plug, and the eccentric shaft is disposed in the mounting cavity; and / or, The number of the eccentric shaft and the number of the rotating shaft are both one.

9. The oscillation drive device according to any one of claims 1 to 8, characterized in that: Also includes: A fixing sleeve is located below the bottom plate, one end of the fixing sleeve is connected to the motor, and the other end of the fixing sleeve is connected to the bottom plate; and / or, The shock-absorbing column is arranged below the bottom plate, and is suitable for being connected with an external component.

10. A culture device, characterized in that: The invention comprises an oscillating drive device as claimed in any one of claims 1 to 9.

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