Culture solution preparation device for in-vitro fertilized eggs

Abstract

The invention belongs to the technical field of medical equipment, and provides a culture solution preparation device for in-vitro fertilized eggs. The liquid adding assembly is arranged on the machine body, the liquid adding assembly comprises two liquid adding units, one liquid adding unit is used for adding a culture solution with a preset volume into a target culture dish, and the other liquid adding unit is used for adding mineral oil with a preset volume into the target culture dish. The culture solution preparation device for the in-vitro fertilized eggs is simple in structure, can automatically add a preset volume of culture solution and mineral oil into the target culture dish, and is convenient to operate.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a culture fluid preparation device for in vitro fertilized eggs. Background Art

[0002] Currently, in the process of adding culture medium and mineral oil to culture dishes to prepare culture medium capable of culturing embryos (in vitro fertilized eggs), workers first need to add a preset volume of culture medium to a target culture dish, and then add a preset volume of mineral oil to the above target culture dish.

[0003] At present, the above operations are all completed manually. Specifically, the staff uses a dropper to add preset volumes of culture solution and mineral oil to the target culture dish in turn. In the process of adding culture solution, 10 drops of culture solution (about 0.4 ml) need to be added in turn, which is inefficient. Summary of the invention

[0004] In view of the defects in the prior art, an object of the present invention is to provide a culture medium preparation device for in vitro fertilized eggs to solve or alleviate the above-mentioned technical problems and one or more other technical problems existing in the prior art.

[0005] In order to achieve the above object, the present invention provides a culture medium preparation device for in vitro fertilized eggs, comprising:

[0006] body; and

[0007] A liquid adding component is arranged on the body, and the liquid adding component includes two liquid adding units, one of which is used to add a preset volume of culture liquid into the target culture dish, and the other liquid adding unit is used to add a preset volume of mineral oil into the target culture dish.

[0008] Furthermore, the liquid adding unit comprises:

[0009] A liquid storage tank, which is arranged on the body;

[0010] A liquid adding head, which is arranged on the machine body;

[0011] A high-precision metering pump, which is arranged on the machine body, wherein the liquid inlet of the high-precision metering pump is connected to the liquid storage tank through a liquid inlet pipe, and the liquid outlet is connected to the liquid adding head through a liquid outlet pipe; and

[0012] The control valves are provided with two, and the two control valves are respectively arranged on the liquid inlet pipe and the liquid outlet pipe.

[0013] Furthermore, it also includes a conveying component, which is arranged on the body and is used to convey the target culture dish to a target position.

[0014] Furthermore, the conveying assembly comprises:

[0015] A transmission roller, which is arranged on the machine body and is rotatably connected to the machine body, two transmission rollers are provided, and the two transmission rollers are arranged in sequence and spaced apart in the transverse direction;

[0016] A conveyor belt is sleeved on the two transmission rollers, and the conveyor belt can rotate along with the rotation of the transmission rollers; and

[0017] A conveying motor is arranged on the machine body, and a power output shaft of the conveying motor is drivingly connected to a power input shaft of any one of the two transmission rollers.

[0018] Furthermore, it also includes a delivery component, which is arranged on the body and is used to deliver culture dishes to the conveying surface of the conveying component in an orderly manner;

[0019] The delivery components include:

[0020] a storage cylinder which is hollow and open at both ends; and

[0021] A delivery unit is arranged on the machine body and the storage cylinder, and is used to deliver the culture dishes in the storage cylinder to the conveying surface of the conveying assembly in an orderly manner.

[0022] Furthermore, the delivery unit includes:

[0023] There are two delivery components, which are symmetrically arranged in the side walls of the storage cylinder on opposite sides, and the delivery components include:

[0024] A rotating shaft, which is arranged in the side wall of the storage cylinder, and the rotating shaft is rotatably connected to the storage cylinder;

[0025] A first carrier sheet, which is fixedly connected to the rotating shaft, extends radially along the rotating shaft, and has a first position and a second position that can be switched to each other, wherein when the first carrier sheet is in the first position, the first carrier sheet extends beyond the inner side wall of the storage tube, and when the first carrier sheet is in the second position, the first carrier sheet retracts into the inner side wall of the storage tube; and

[0026] a second carrier sheet, which is fixedly connected to the rotating shaft, the second carrier sheet extends in the radial direction of the rotating shaft, and the second carrier sheet has a third position and a fourth position that can be switched with each other, wherein when the second carrier sheet is in the third position, the second carrier sheet extends beyond the inner side wall of the storage tube, and when the second carrier sheet is in the fourth position, the second carrier sheet retracts into the inner side wall of the storage tube, and when the first carrier sheet is in the first position, the second carrier sheet is in the fourth position, and when the first carrier sheet is in the second position, the first carrier sheet is in the third position; and

[0027] a driving structure, the driving structure being used to drive the rotating shaft to rotate so that the first carrying sheet switches between the first position and the second position;

[0028] There are m first carrier sheets and n second carrier sheets, wherein m≥2, n=m or m+1, the m first carrier sheets and the n second carrier sheets are alternately arranged in sequence along the axial direction of the rotating shaft, and the distance between any first carrier sheet and the adjacent second carrier sheet is greater than or equal to the height of the culture dish.

[0029] Furthermore, the first ends of the first bearing sheet and the second bearing sheet are fixedly connected to the rotating shaft, and the second ends thereof are freely extended along the radial direction of the rotating shaft;

[0030] The driving structure comprises:

[0031] A first gear, which is rotatably connected to the body, and the first gear is transmission-connected to the rotating shaft;

[0032] a first rack meshing with the first gear, and the first rack being slidably connected to the body so that the first rack has a fifth position and a sixth position that are switchable with each other;

[0033] A first elastic element, which is disposed on the storage cylinder or the body, and in a natural state, the first elastic element applies elastic force to the first gear, so that the first gear has a tendency to rotate in a first direction; and

[0034] A first driving block is arranged on the conveying surface of the conveying assembly and can rotate with the rotation of the conveying assembly. The first driving block is provided with a first driving inclined surface at one end facing the first rack, and the first rack is correspondingly provided with a first driving element matched with the first driving inclined surface.

[0035] Furthermore, the middle parts of the first bearing sheet and the second bearing sheet are fixedly connected to the rotating shaft, and both ends freely extend along the radial direction of the rotating shaft;

[0036] The driving structure comprises:

[0037] a second gear, which is rotatably connected to the body, the second gear is drivingly connected to the rotating shaft, and the second gear can only drive the rotating shaft to rotate along a first direction;

[0038] a second rack meshing with the second gear, and the second rack is slidably connected to the body, so that the second rack has a seventh position and an eighth position that are switchable with each other;

[0039] A second driving block, which is arranged on the conveying surface of the conveying assembly and can rotate with the rotation of the conveying assembly, the second driving block is provided with a second driving inclined surface at one end facing the second rack, and the second rack is correspondingly provided with a second driving element matched with the second driving inclined surface; and

[0040] A second elastic element is arranged on the body, and in a natural state, the second elastic element applies elastic force to the second rack, so that the second rack has a tendency to move from the eighth position to the seventh position.

[0041] Furthermore, it also includes a limiting assembly, wherein z limiting assemblies are provided, wherein z=m+n, and the z limiting assemblies correspond to m first bearing sheets and n second bearing sheets respectively, and the limiting assembly is used to limit the first bearing sheet and the second bearing sheet, and the limiting assembly includes:

[0042] a limiting element, which is arranged in the side wall of the storage tube, and the limiting element is slidably connected to the storage tube so that the limiting element has a ninth position and an eighth position that can be switched to each other, and the side walls of the first bearing sheet and the second bearing sheet are correspondingly provided with first limiting grooves adapted to the limiting element;

[0043] Wherein, when the limiting element is in the ninth position, one end of the limiting element facing the first limiting groove is located in the first limiting groove;

[0044] When the limiting element is in the tenth position, the limiting element is located outside the first limiting groove;

[0045] When the torque applied to the rotating shaft exceeds a preset value, the limiting element can be moved out of the first limiting groove; and

[0046] The third elastic element has two ends connected to the limiting element and the storage cylinder respectively, and in a natural state, the third elastic element has a tendency to move the limiting element from the tenth position to the ninth position.

[0047] Beneficial effects of the present invention:

[0048] The culture solution preparation device for in vitro fertilized eggs provided by the present invention can automatically add culture solution and mineral oil of preset volumes into a target culture dish by arranging a liquid adding component, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0050] Figure 1 A three-dimensional view of a culture medium preparation device for in vitro fertilized eggs provided in the first embodiment of the present invention;

[0051] Figure 2 A three-dimensional view of a culture medium preparation device for in vitro fertilized eggs provided in the second embodiment of the present invention;

[0052] Figure 3 A three-dimensional view of a culture medium preparation device for in vitro fertilized eggs provided in Embodiment 3 of the present invention;

[0053] Figure 4 for Figure 3 An enlarged view of section A is shown;

[0054] Figure 5 for Figure 3 An enlarged view of section B is shown;

[0055] Figure 6 for Figure 3 A sectional perspective view of a culture medium preparation device for in vitro fertilized eggs;

[0056] Figure 7 for Figure 6 An enlarged view of section C is shown;

[0057] Figure 8 for Figure 7 An enlarged view of section D is shown;

[0058] Fig. 9 for Figure 3 A partially exploded perspective view of a culture medium preparation device for in vitro fertilized eggs;

[0059] Fig.10 A three-dimensional view of a culture medium preparation device for in vitro fertilized eggs provided in Embodiment 4 of the present invention;

[0060] Fig.11 for Fig.10 An enlarged view of section E is shown;

[0061] Fig.12 for Fig.10 An enlarged view of section F is shown;

[0062] Fig.13 for Fig.10 A sectional perspective view of a culture medium preparation device for in vitro fertilized eggs;

[0063] Fig.14 for Fig.13 An enlarged view of section G is shown;

[0064] Fig.15 for Fig.14 An enlarged view of section H is shown;

[0065] Fig.16 for Fig.10 A partially exploded three-dimensional view of a culture medium preparation device for in vitro fertilized eggs

[0066] Fig.17 for Figure 1 , Figure 2 , Figure 3 and Fig.10 A three-dimensional view of a liquid adding component of a culture medium preparation device for in vitro fertilized eggs is shown.

[0067] Reference numerals:

[0068] 100, body; 110, limit part; 210, liquid storage tank; 220, liquid adding head; 230, high-precision metering pump; 240, control valve; 310, conveyor belt; 410, storage cylinder; 411, locking socket; 421, rotating shaft; 422, first bearing plate; 423, second bearing plate; 431, first gear; 432, first rack; 433, first spring; 434, first driving block; 435, third gear; 436, first driving element Part; 441, second gear; 442, second rack; 443, second drive block; 444, second spring; 445, fourth gear; 446, one-way bearing; 447, second drive element; 401, first limiting groove; 402, second limiting groove; 403, first drive inclined plane; 404, second drive inclined plane; 510, limiting element; 520, third elastic element; 610, locking pin; 620, electric push rod; 700, culture dish. DETAILED DESCRIPTION

[0069] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0070] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0071] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0072] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0073] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0075] like Figure 1As shown, the present invention provides a culture fluid preparation device for in vitro fertilized eggs, comprising a body 100 and a fluid adding component.

[0076] The liquid adding assembly is installed on the machine body 100, and the liquid adding assembly includes two liquid adding units.

[0077] One of the liquid adding units is used to add a preset volume of culture fluid to the target culture dish (the culture dish 700 corresponding to the liquid adding unit). The other liquid adding unit is used to add a preset volume of mineral oil to the target culture dish (the culture dish 700 corresponding to the liquid adding unit and to which the culture fluid has been added).

[0078] like Figure 1 , 2 As shown in , 3, 5, 10, 12, and 17, in this embodiment, the liquid adding unit includes a liquid storage tank 210, a liquid adding head 220, a high-precision metering pump 230, and a control valve 240.

[0079] Among them, the liquid storage tank 210 is fixedly installed on the body 100, and the liquid storage tank 210 is used to store the culture solution. The liquid adding head 220 is fixedly installed on the body 100, and the liquid adding head 220 is located above the conveying surface of the conveying assembly. The high-precision metering pump 230 is fixedly installed on the body 100, and the liquid inlet of the high-precision metering pump 230 is connected to the liquid storage tank 210 through the liquid inlet pipe, and the liquid outlet is connected to the liquid adding head 220 through the liquid outlet pipe. Two control valves 240 are provided, and the two control valves 240 are respectively arranged on the liquid inlet pipe and the liquid outlet pipe to control the opening and closing of the liquid inlet pipe and the liquid outlet pipe.

[0080] When in use, the control valve 240 and the high-precision metering pump 230 are opened. Under the action of the high-precision metering pump 230, the target volume of liquid (culture fluid or mineral oil) is dripped from the liquid adding head 220 into the target culture dish. It has a simple structure, a reasonable design, and a high liquid adding accuracy.

[0081] like Figure 2 As shown, in this embodiment, the culture medium preparation device for in vitro fertilized eggs also includes a conveying component.

[0082] The conveying assembly is disposed on the machine body 100 , and is used to convey the target culture dish to a target position. It should be noted that the target position includes the bottom of the two liquid adding heads 220 .

[0083] When in use, the staff only needs to place the culture dish 700 on the conveying component, and the conveying component will transport the culture dish 700 to the bottom of the liquid outlets of the two liquid adding units in sequence, thereby achieving the purpose of adding culture liquid and mineral oil to the culture dish 700 in sequence. The staff does not need to place the culture dish 700 under the corresponding liquid adding unit, which is convenient to operate.

[0084] Preferably, two position sensors are provided on the machine body 100, and the two position sensors correspond to the two liquid adding units respectively. The position sensors are electrically connected to the controller, and the controller is electrically connected to the conveying assembly.

[0085] The position sensor is used to detect the position of the culture dish 700 and convert the detected information into an electrical signal corresponding thereto and transmit it to the controller. The controller converts the received electrical signal into a control signal corresponding thereto to control the working state of the conveying component. Specifically, when the position sensor senses the culture dish 700, the position sensor transmits the information to the controller, and the controller controls the conveying component to stop running, so that the target culture dish stops at the corresponding liquid adding unit. The operation is convenient and the position of the target culture dish can be accurately controlled.

[0086] like Figure 2 As shown, in this embodiment, the conveying assembly includes a transmission roller, a conveyor belt 310 and a conveying motor. Among them, the transmission roller is installed on the machine body 100 and is rotatably connected with the machine body 100. Two transmission rollers are provided, and the two transmission rollers are arranged in sequence and spaced in the transverse direction. The conveyor belt 310 is sleeved on the two transmission rollers, and the conveyor belt 310 can rotate with the rotation of the transmission rollers. The conveying motor is fixedly installed on the machine body 100, and the power output shaft of the conveying motor is transmission-connected with the power input shaft of any one of the two transmission rollers.

[0087] When in use, the conveying motor drives the transmission roller to rotate, thereby driving the conveying belt 310 to rotate through the transmission roller, thereby achieving the purpose of conveying the culture dish 700, with a simple structure and convenient operation.

[0088] like Figure 3 , 4 As shown in Figures , 6, 7, 8, 9, 10, 11, 13, 14, 15, and 16, in this embodiment, the culture medium preparation device for in vitro fertilized eggs also includes a delivery component.

[0089] The delivery assembly is arranged on the machine body 100, and is used to deliver the culture dishes 700 to the conveying surface of the conveying assembly in an orderly manner. The delivery assembly includes a storage cylinder 410 and a delivery unit.

[0090] The storage cylinder 410 is hollow and has two openings at both ends, and the storage cylinder 410 is detachably connected to the machine body 100. The delivery unit is arranged on the machine body 100 and the storage cylinder 410, and the delivery unit is used to deliver the culture dishes 700 in the storage cylinder 410 to the conveying surface of the conveying assembly in an orderly manner.

[0091] When in use, the staff only needs to install the storage cylinder 410 storing the culture dishes 700 to the corresponding position of the body 100. Under the action of the delivery unit, the culture dishes 700 in the storage cylinder 410 are delivered to the conveying surface of the conveying component in an orderly manner. During the batch preparation process, the staff does not need to place the culture dishes 700 one by one on the conveying component, which is convenient to operate.

[0092] like Figure 6 , 7 As shown in Figures 8, 9, 13, 14, 15 and 16, in this embodiment, the delivery unit includes a delivery element and a driving structure.

[0093] Two delivery components are provided, and the two delivery components are symmetrically arranged in the side walls of the storage tube 410 on two opposite sides. The delivery components include a rotating shaft 421 , a first bearing sheet 422 and a second bearing sheet 423 .

[0094] The rotating shaft 421 is disposed in the side wall of the storage tube 410 and is rotatably connected to the storage tube 410. The first bearing piece 422 is fixedly connected to the rotating shaft 421 and extends radially along the rotating shaft 421. The first bearing piece 422 has a first position and a second position that can be switched with each other.

[0095] Among them, when the first supporting sheet 422 is in the first position, the first supporting sheet 422 extends beyond the inner wall of the storage tube 410, so that the first supporting sheet 422 can support the culture dish 700 in the storage tube 410, thereby achieving the purpose of preventing the culture dish 700 in the storage tube 410 from descending; when the first supporting sheet 422 is in the second position, the first supporting sheet 422 retracts to the inner wall of the storage tube 410, so that the first supporting sheet 422 cannot support the culture dish 700 in the storage tube 410, thereby achieving the purpose of enabling the culture dish 700 in the storage tube 410 to move downward along the axis of the storage tube 410.

[0096] The second bearing piece 423 is fixedly connected to the rotating shaft 421 . The second bearing piece 423 extends along the radial direction of the rotating shaft 421 . The second bearing piece 423 has a third position and a fourth position that can be switched to each other.

[0097] Among them, when the second carrier sheet 423 is in the third position, the second carrier sheet 423 extends beyond the inner wall of the storage tube 410, so that the second carrier sheet 423 can support the culture dish 700 in the storage tube 410, thereby achieving the purpose of preventing the culture dish 700 in the storage tube 410 from falling; when the second carrier sheet 423 is in the fourth position, the second carrier sheet 423 retracts to the inner wall of the storage tube 410, so that the second carrier sheet 423 cannot support the culture dish 700 in the storage tube 410, thereby achieving the purpose of enabling the culture dish 700 in the storage tube 410 to move downward along the axis of the storage tube 410

[0098] When the first carrier sheet 422 is in the first position, the second carrier sheet 423 is in the fourth position; when the first carrier sheet 422 is in the second position, the first carrier sheet 422 is in the third position.

[0099] There are m first carrier sheets 422 and n second carrier sheets 423, wherein m≥2, n=m or n=m+1, and the m first carrier sheets 422 and the n second carrier sheets 423 are alternately arranged in sequence along the axis of the rotating shaft 421, that is, one first carrier sheet 422, one second carrier sheet 423, one first carrier sheet 422, and one second carrier sheet 423 are arranged in sequence along the axis of the rotating shaft 421. The distance between any first carrier sheet 422 and the adjacent second carrier sheet 423 is greater than or equal to the height of the culture dish 700, so that when a culture dish 700 is placed on one of the first carrier sheet 422 and the second carrier sheet 423, the culture dish 700 will not affect the movement of the other.

[0100] The driving structure is used to drive the rotating shaft 421 to rotate sequentially at a preset angle so that the first supporting plate 422 switches between the first position and the second position. At the same time, the second supporting plate 423 synchronously switches between the third position and the fourth position. Specifically, the preset angle is the angle at which the rotating shaft 421 rotates when the first supporting plate 422 moves from the first position to the second position.

[0101] Specifically, during use, assuming that initially, all the first carrier sheets 422 are in the first position, and a culture dish 700 is placed on each first carrier sheet 422 , then all the second carrier sheets 423 are in the fourth position.

[0102] The driving structure drives the rotating shaft 421 to rotate a preset angle, so that the first supporting plate 422 moves from the first position to the second position. At the same time, the second supporting plate 423 moves from the fourth position to the third position. Since the culture dish 700 loses the support of the first supporting plate 422, it moves downward along the axis of the storage tube 410 to the second supporting plate 423 located below it under the action of gravity.

[0103] The driving structure drives the rotating shaft 421 to rotate the preset angle again, so that the second supporting plate 423 moves from the third position to the fourth position, and the first supporting plate 422 moves from the second position to the first position. Since the culture dish 700 loses the support of the second supporting plate 423, it moves downward along the axis of the storage tube 410 to the first supporting plate 422 located below it under the action of gravity.

[0104] By repeating the above steps, the purpose of moving the culture dishes 700 downward along the axis of the storage cylinder 410 can be achieved, so as to achieve the purpose of placing the culture dishes 700 onto the conveying surface of the conveying assembly in sequence.

[0105] like Figure 6 , 7 As shown in FIGS. 8 and 9 , in this embodiment, the first ends of the first carrier sheet 422 and the second carrier sheet 423 are fixedly connected to the rotating shaft 421 , and the second ends thereof are freely extended along the radial direction of the rotating shaft 421 .

[0106] Correspondingly, the driving structure includes a first gear 431 , a first rack 432 , a first elastic element and a first driving block 434 .

[0107] The first gear 431 is mounted on the body 100 and is rotatably connected to the body 100. The first gear 431 is in transmission connection with the rotating shaft 421 to drive the rotating shaft 421 to rotate. Specifically, the power input end of the rotating shaft 421 is coaxially sleeved with a third gear 435, and the third gear 435 can mesh with the first gear 431, so that the first gear 431 can drive the rotating shaft 421 to rotate through the third gear 435. The first rack 432 is meshed with the first gear 431, and the first rack 432 is slidably connected to the body 100, so that the first rack 432 has a fifth position and a sixth position that can be switched to each other.

[0108] The first elastic element is disposed on the storage tube 410 or the body 100 , and in a natural state, the first elastic element applies elastic force to the first gear 431 so that the first gear 431 tends to rotate along the first direction. Specifically, the first elastic element is any elastic element that can apply torsion force to the first gear 431 .

[0109] Specifically, in one embodiment, the first elastic element is a torsion spring or a spiral torsion spring (not shown in the drawings), and the first elastic element is arranged at the rotation center of the rotating shaft 421, and the two ends of the first elastic element are respectively connected to the storage cylinder 410 and the rotating shaft 421. In a natural state, the first elastic element applies elastic force to the rotating shaft 421, so that the rotating shaft 421 has a tendency to rotate in the first direction. When in use, the rotating shaft 421 transmits power to the first gear 431, so that the first gear 431 has a tendency to move in the first direction.

[0110] In another embodiment, the first elastic element is a torsion spring or a spiral torsion spring (not shown in the drawings), and the first elastic element is disposed at the rotation center of the first gear 431, and the two ends of the first elastic element are respectively connected to the body 100 and the first gear 431. In a natural state, the first elastic element applies elastic force to the first gear 431, so that the first gear 431 has a tendency to move along the first direction.

[0111] like Fig. 9 As shown, in another embodiment, the first elastic element is a first spring 433, the first end of the first elastic element is connected to the first rack 432, and the second end is connected to the body 100. Preferably, the first spring 433 is sleeved on the telescopic rod, and the two ends of the telescopic rod are respectively fixedly connected to the first rack 432 and the body 100, and the first end of the first spring 433 abuts against the first rack 432, and the second end abuts against the body 100. In a natural state, the first elastic element applies elastic force to the first rack 432, so that the first rack 432 has a tendency to move from the sixth position to the fifth position. When in use, the first rack 432 transmits power to the first gear 431, so that the first gear 431 has a tendency to move along the first direction.

[0112] The first drive block 434 is arranged on the conveying surface of the conveying assembly and can rotate with the rotation of the conveying assembly. Specifically, in the present embodiment, the first drive block 434 is arranged on the conveying belt 310, and the first drive block 434 is fixedly connected with the conveying belt 310 so that the first drive block 434 can move with the rotation of the conveying belt 310.

[0113] The first driving block 434 is provided with a first driving inclined surface 403 at one end facing the first rack 432, and the first rack 432 is correspondingly provided with a first driving element 436 matched with the first driving inclined surface 403. During the rotation of the conveying assembly, the conveying assembly applies the maximum force to the first rack 432 through the first driving inclined surface 403 and the first driving element 436 to drive the first rack 432 to move from the fifth position to the sixth position, so that the first rack 432 drives the first gear 431 to rotate along the second direction by a preset angle α, wherein the second direction is opposite to the first direction, and 90°≤α≤180°.

[0114] Specifically, the first driving block 434 applies a force to the first driving element 436 through the first driving inclined surface 403, and the first driving element 436 applies a force to the first rack 432 to drive the first rack 432 to move from the fifth position to the sixth position, so that the first rack 432 drives the first gear 431 to rotate along the second direction by a preset angle α, wherein the second direction is opposite to the first direction, and 90°≤α≤180°.

[0115] Specifically, when in use, the driving motor drives the transmission roller to rotate, the transmission roller drives the conveyor belt 310 to rotate, and the conveyor belt 310 drives the first driving block 434 to move together. When the first driving block 434 moves to the position of the first rack 432, the first driving block 434 applies a force to the first rack 432 through the first driving inclined surface 403, thereby driving the first rack 432 to move from the fifth position to the sixth position, and the first rack 432 drives the first gear 431 to rotate in the second direction, and the first gear 431 drives the rotating shaft 421 to rotate in the second direction.

[0116] When the first rack 432 moves to the sixth position, the first driving block 434 cannot apply force to the first rack 432 through the first driving inclined surface 403, thereby achieving the purpose of driving the rotating shaft 421 to rotate a preset angle along the second direction. In this process, the first bearing plate 422 moves from the first position to the second position, and the second bearing plate 423 moves from the fourth position to the third position.

[0117] As the conveyor belt 310 rotates, the first driving block 434 passes through the first rack 432. Under the action of the first elastic element, the first elastic element applies elastic force to the first gear 431, so that the first gear 431 rotates in the first direction by a preset angle. During this process, the first bearing plate 422 returns to the first position from the second position, and the second bearing plate 423 returns to the fourth position from the third position.

[0118] Repeat the above steps to achieve the purpose of orderly placing the culture dishes 700 on the conveying component.

[0119] The driving structure provided in this embodiment has a simple structure and a reasonable design. Through the operation of the conveying component, the purpose of throwing the culture dish 700 onto the conveying component in real time and in an orderly manner can be achieved. No additional power is required, which saves electric energy. After each time the first driving block 434 passes through the first rack 432, the first carrier plate 422 and the second carrier plate 423 will return to their original positions. Therefore, each time the first driving block 434 passes through the first rack 432, a culture dish 700 can be thrown onto the conveyor belt 310.

[0120] Preferably, a plurality of first driving blocks 434 are provided, and the plurality of first driving blocks 434 are sequentially arranged at intervals around the conveyor belt 310 to achieve the purpose of improving the delivery efficiency.

[0121] like Fig.13 , 14 As shown in FIGS. 15 and 16 , in this embodiment, the middle parts of the first carrier sheet 422 and the second carrier sheet 423 are fixedly connected to the rotating shaft 421 , and both ends extend freely along the radial direction of the rotating shaft 421 .

[0122] Correspondingly, the driving structure includes a second gear 441 , a second rack 442 , a second driving block 443 and a second elastic element.

[0123] Among them, the second gear 441 is arranged on the body 100 and is rotatably connected with the body 100, the second gear 441 is transmission-connected with the rotating shaft 421, and the second gear 441 can only drive the rotating shaft 421 to rotate along the first direction. Specifically, the power input end of the rotating shaft 421 is coaxially sleeved with a fourth gear 445, and the fourth gear 445 is meshed with the second gear 441. And the fourth gear 445 is transmission-connected with the rotating shaft 421 through a one-way transmission structure, so that the second gear 441 can only drive the rotating shaft 421 to rotate along the first direction through the fourth gear 445. Specifically, the one-way transmission structure includes a one-way bearing 446, a ratchet structure, etc. In this embodiment, the one-way transmission structure is a one-way bearing 446.

[0124] The second rack 442 is meshed with the second gear 441 , and the second rack 442 is slidably connected to the body 100 , so that the second rack 442 has a seventh position and an eighth position that can be switched to each other.

[0125] The second drive block 443 is arranged on the conveying surface of the conveying assembly and can rotate with the rotation of the conveying assembly. Specifically, in the present embodiment, the second drive block 443 is arranged on the conveying belt 310 and is fixedly connected with the conveying belt 310 so that the second drive block 443 can move with the rotation of the conveying belt 310.

[0126] A second driving bevel 404 is provided at one end of the second driving block 443 facing the second rack 442, and the second rack 442 is correspondingly provided with a second driving element 447 cooperating with the second driving bevel 404. During the rotation of the conveying assembly, the conveying assembly applies a force to the second rack 442 through the second driving bevel 404 and the second driving element 447 to drive the second rack 442 to move from the seventh position to the eighth position, so that the second rack 442 drives the second gear 441 to rotate along the first direction by a preset angle β, wherein β=90°.

[0127] Specifically, the conveying assembly drives the second driving block 443 to move, and the second driving block 443 applies the maximum force to the second driving element 447 through the second driving bevel. The second driving element 447 applies a force to the second rack 442 to drive the second rack 442 to move from the seventh position to the eighth position, so that the second rack 442 drives the second gear 441 to rotate along the first direction by a preset angle β, where β=90°.

[0128] The second elastic element is disposed on the body 100, and in a natural state, the second elastic element applies elastic force to the second rack 442, so that the second rack 442 has a tendency to move from the eighth position to the seventh position. Specifically, the second elastic element can be any elastic element that can apply elastic force to the second rack 442.

[0129] In one embodiment, the second elastic element is a torsion spring or a spiral torsion spring (not shown in the drawings), and the second elastic element is arranged at the rotation center of the second gear 441. The two ends of the second elastic element are respectively connected to the second gear 441 and the body 100, and in a natural state, the second elastic element applies elastic force to the second gear 441, so that the second gear 441 has a tendency to move in a second direction, wherein the second direction is opposite to the first direction. When in use, the second gear 441 transmits power to the second rack 442, so that the second rack 442 has a tendency to move from the eighth position to the seventh position.

[0130] like Fig.16 As shown, in this embodiment, the second elastic element is a second spring 444 (correspondingly, the second elastic element can also be a gas spring or a hydraulic spring, which will not be described in detail here), and the two ends of the second elastic spring 444 are respectively connected to the second rack 442 and the body 100. Preferably, the second spring 444 is sleeved on the telescopic rod, and the two ends of the telescopic rod are respectively fixedly connected to the second rack 442 and the body 100, and the first end of the second spring abuts against the second rack 442, and the second end abuts against the body 100. In the natural state, the second elastic element applies elastic force to the second rack 442, so that the second rack 442 has a tendency to move from the eighth position to the seventh position.

[0131] Specifically, when in use, the conveying motor drives the transmission roller to rotate, the transmission roller drives the conveyor belt 310 to rotate, and the conveyor belt 310 drives the second driving block 443 to move. When the second driving block 443 moves to the second rack 442, the second driving block 443 applies a force to the second rack 442 through the second driving inclined surface, thereby driving the second rack 442 to move from the seventh position to the eighth position, and the second rack 442 drives the second gear 441 to rotate in the first direction. The second gear 441 drives the rotating shaft 421 to rotate in the first direction.

[0132] When the second rack 442 moves to the eighth position, the second driving block 443 cannot apply force to the second rack 442 through the second driving inclined surface, thereby achieving the purpose of driving the rotating shaft 421 to rotate a preset angle along the first direction. In this process, the first bearing plate 422 moves from the first position to the second position, and the second bearing plate 423 moves from the fourth position to the third position.

[0133] As the conveyor belt 310 rotates, the second driving block 443 passes through the second rack 442. Under the action of the second elastic element, the second elastic element applies elastic force to the second rack 442, so that the second rack 442 moves from the eighth position to the seventh position. The second rack 442 drives the second gear 441 to rotate in the second direction. During this process, since the second gear 441 can only drive the rotating shaft 421 to rotate in the first direction, the second rack 442 cannot drive the rotating shaft 421 to rotate through the second gear 441 during the process of the second rack 442 moving from the eighth position to the seventh position.

[0134] When the second driving block 443 passes through the second rack 442 again (here, it can be either the same second driving block 443 passing through the second rack 442 or another second driving block 443 passing through the second rack 442), the second driving block 443 applies a force to the second rack 442 through the second driving bevel, thereby driving the second rack 442 to move from the seventh position to the eighth position, and then driving the rotating shaft 421 to continue to rotate by a preset angle along the first direction again.

[0135] The above steps are repeated to achieve the purpose of placing the culture dishes 700 onto the conveyor belt 310 in an orderly manner.

[0136] The driving structure provided in this embodiment has a simple structure and a reasonable design. Through the operation of the conveying component, the purpose of throwing the culture dish 700 onto the conveying component in real time and in an orderly manner can be achieved without the need for additional power, thus saving electric energy.

[0137] Preferably, multiple groups of second drive blocks 443 are provided, and the multiple groups of second drive blocks 443 are arranged in sequence at intervals around the conveyor belt 310, and each group of second drive blocks 443 is arranged at intervals of two, so that after a group of second drive blocks 443 passes through the second rack 442, the first carrier plate 422 and the second carrier plate 423 will both return to their original positions. Therefore, after any group of second drive blocks 443 passes through the second rack 442, a culture dish 700 can be placed on the conveyor belt 310.

[0138] like Fig.15As shown, in this embodiment, a limiting assembly is further included, and the number of the limiting assemblies is z, where z=m+n, and the z limiting assemblies correspond to the m first bearing sheets 422 and the n second bearing sheets 423. The limiting assembly is used to limit the first bearing sheet 422 and the second bearing sheet 423. The limiting assembly includes a limiting element 510 and a third elastic element 520.

[0139] Among them, the limiting element 510 is arranged in the side wall of the storage tube 410, and the limiting element 510 is slidably connected to the storage tube 410 so that the limiting element 510 has a ninth position and an eighth position that can be switched to each other, and the side walls of the first supporting plate 422 and the second supporting plate 423 are correspondingly provided with a first limiting groove 401 adapted to the limiting element 510.

[0140] Among them, when the limiting element 510 is in the ninth position, the end of the limiting element 510 facing the first limiting groove 401 is located in the first limiting groove 401, and the first limiting groove 401 cooperates with the limiting element 510 to limit the first bearing sheet 422 or the second bearing sheet 423. When the limiting element 510 is in the tenth position, the limiting element 510 is located outside the first limiting groove 401, so that the first bearing sheet 422 and the second bearing sheet 423 cannot be limited.

[0141] When the external force applied to the first carrier sheet 422 or the second carrier sheet 423 exceeds a preset value, the limiting element 510 can be moved out of the first limiting groove 401. In this embodiment, the limiting element 510 is spherical or hemispherical.

[0142] The two ends of the third elastic element 520 are respectively connected to the limiting element 510 and the storage tube 410, and in a natural state, the third elastic element 520 has a tendency to move the limiting element 510 from the tenth position to the ninth position. Specifically, the third elastic element 520 is an elastic element capable of applying elastic force to the limiting element 510, such as a spring, a gas spring, a hydraulic spring, etc. In this embodiment, the third elastic element 520 is a spring.

[0143] In this embodiment, by setting a limit assembly, the first carrier plate 422 and the second carrier plate 423 can be limited so that the rotating shaft 421 will not rotate at will when the culture dish 700 is placed in the storage tube 410. At the same time, it is also possible to determine whether the first carrier plate 422 or the second carrier plate 423 has moved into place by the size of the force applied to the rotating shaft 421. In addition, the rotating shaft 421 can be prevented from rotating during the resetting process of the second rack 442.

[0144] like Figure 3 , 4As shown in Figures 6, 7, 8, 9, 10, 11, 13, 14, 15 and 16, in the present embodiment, the culture fluid preparation device for in vitro fertilized eggs further comprises a locking assembly, which has a locking state and an unlocking state which can be switched with each other. When the locking assembly is in the locking state, the locking assembly locks the storage cylinder 410 to lock the storage cylinder 410 on the body 100; when the locking assembly is in the unlocking state, the locking assembly releases the lock on the storage cylinder 410, thereby allowing the storage cylinder 410 to be separated from the body 100.

[0145] like Figure 3 , 4 As shown in , 6, 7, 8, 9, 10, 11, 13, 14, 15, and 16, in this embodiment, the locking assembly includes a locking pin 610 and an electric push rod 620.

[0146] The locking bolt 610 is slidably connected to the body 100 so that the locking bolt 610 has a locking position and an unlocking position that can be switched to each other. The side wall of the storage tube 410 is correspondingly provided with a locking socket 411 that matches the locking bolt 610. When the locking bolt 610 is in the locking position, the locking bolt 610 can be inserted into the locking socket 411 so that the locking assembly is in a locked state; when the locking bolt 610 is in the unlocking position, the locking bolt 610 is located outside the locking socket 411 so that the locking assembly is in an unlocking state. The electric push rod 620 is fixedly installed on the body 100, and the power output shaft of the electric push rod 620 is fixedly connected to the locking bolt 610 to drive the locking bolt 610 to switch between the locking position and the unlocking position.

[0147] Of course, a human-machine interaction module is provided on the machine body 100, the human-machine interaction module is electrically connected to the controller, the controller is electrically connected to the liquid adding component, the conveying component, and the locking component, and the human-machine interaction module is used to receive operation information and convert the operation information into corresponding control signals to control the operation status of the liquid adding component, the conveying component, and the locking component. Specifically, the operation information includes: setting the preset addition volume of the culture solution and the mineral oil, the locking state and the unlocking state of the locking component, etc.

[0148] Since the conveyor belt 310 is easily deformed when subjected to force, preferably, the side walls of the first driving block 434 and the second driving block 443 are provided with a second limiting groove 402, and the body 100 is correspondingly provided with a limiting portion 110 adapted to the second limiting groove 402. In the process of the first rack 432 of the first driving block 434 and the second rack 442 driven to move by the second driving block 443, with the cooperation of the second limiting groove 402 and the limiting portion 110, the first driving block 434 and the second driving block 443 will not be offset.

[0149] In the specification of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0150] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A culture medium preparation device for in vitro fertilized eggs, characterized in that: include: a body (100); and A liquid adding component is arranged on the body (100), and comprises two liquid adding units, one of which is used to add a preset volume of culture liquid into a target culture dish, and the other of which is used to add a preset volume of mineral oil into the target culture dish.

2. The culture medium preparation device for in vitro fertilized eggs according to claim 1, characterized in that: The liquid adding unit comprises: A liquid storage tank (210) disposed on the machine body (100); A liquid adding head (220), which is arranged on the machine body (100); a high-precision metering pump (230), which is arranged on the machine body (100), wherein the liquid inlet of the high-precision metering pump (230) is connected to the liquid storage tank (210) through a liquid inlet pipe, and the liquid outlet is connected to the liquid adding head (220) through a liquid outlet pipe; and Two control valves (240) are provided, and the two control valves (240) are respectively provided on the liquid inlet pipe and the liquid outlet pipe.

3. The culture medium preparation device for in vitro fertilized eggs according to claim 1 or 2, characterized in that: It also comprises a conveying component, which is arranged on the body (100) and is used to convey the target culture dish to a target position.

4. The culture medium preparation device for in vitro fertilized eggs according to claim 3, characterized in that: The conveying assembly comprises: a transmission roller, which is arranged on the machine body (100) and is rotatably connected to the machine body (100), two transmission rollers are provided, and the two transmission rollers are arranged in sequence and spaced apart in the transverse direction; A conveyor belt (310) is sleeved on the two transmission rollers, and the conveyor belt (310) can rotate along with the rotation of the transmission rollers; and A conveying motor is arranged on the machine body (100), and a power output shaft of the conveying motor is drivingly connected to a power input shaft of any one of the two transmission rollers.

5. The culture medium preparation device for in vitro fertilized eggs according to claim 3, characterized in that: It also includes a delivery component, which is arranged on the machine body (100) and is used to deliver culture dishes (700) in an orderly manner onto the conveying surface of the conveying component; The delivery components include: A storage cylinder (410) which is hollow and has two open ends; and A delivery unit is arranged on the machine body (100) and the storage cylinder (410), and is used to deliver the culture dishes (700) in the storage cylinder (410) onto the conveying surface of the conveying assembly in an orderly manner.

6. The culture medium preparation device for in vitro fertilized eggs according to claim 5, characterized in that: The delivery unit comprises: There are two delivery components, which are symmetrically arranged in the side walls of the storage cylinder (410) on two opposite sides, and the delivery components include: A rotating shaft (421), which is disposed in a side wall of the storage cylinder (410), and the rotating shaft (421) is rotatably connected to the storage cylinder (410); a first carrier sheet (422) fixedly connected to the rotating shaft (421), the first carrier sheet (422) extending in the radial direction of the rotating shaft (421), the first carrier sheet (422) having a first position and a second position switchable with each other, wherein when the first carrier sheet (422) is in the first position, the first carrier sheet (422) extends beyond the inner side wall of the storage tube (410), and when the first carrier sheet (422) is in the second position, the first carrier sheet (422) retracts into the inner side wall of the storage tube (410); and a second bearing piece (423) fixedly connected to the rotating shaft (421), the second bearing piece (423) extending in the radial direction of the rotating shaft (421), the second bearing piece (423) having a third position and a fourth position switchable to each other, wherein when the second bearing piece (423) is in the third position, the second bearing piece (423) extends beyond the inner wall of the storage tube (410), and when the second bearing piece (423) is in the fourth position, the second bearing piece (423) retracts into the inner wall of the storage tube (410), and when the first bearing piece (422) is in the first position, the second bearing piece (423) is in the fourth position, and when the first bearing piece (422) is in the second position, the first bearing piece (422) is in the third position; and a driving structure, the driving structure being used to drive the rotating shaft (421) to rotate so that the first carrying sheet (422) switches between the first position and the second position; There are m first carrier sheets (422) and n second carrier sheets (423), wherein m≥2, n=m or m+1, and the m first carrier sheets (422) and the n second carrier sheets (423) are alternately arranged in sequence along the axis direction of the rotating shaft (421), and the distance between any first carrier sheet (422) and the adjacent second carrier sheet (423) is greater than or equal to the height of the culture dish (700).

7. The culture medium preparation device for in vitro fertilized eggs according to claim 6, characterized in that: The first ends of the first carrier sheet (422) and the second carrier sheet (423) are fixedly connected to the rotating shaft (421), and the second ends thereof are freely extended along the radial direction of the rotating shaft (421); The driving structure comprises: A first gear (431) is rotatably connected to the machine body (100), and the first gear (431) is transmission-connected to the rotating shaft (421); a first rack (432) meshing with the first gear (431), and the first rack (432) being slidably connected to the body (100), so that the first rack (432) has a fifth position and a sixth position that are switchable with each other; a first elastic element, which is arranged on the storage cylinder (410) or the machine body (100), and in a natural state, the first elastic element applies elastic force to the first gear (431), so that the first gear (431) has a tendency to rotate in a first direction; and A first driving block (434) is arranged on the conveying surface of the conveying component and can rotate with the rotation of the conveying component. The first driving block (434) is provided with a first driving inclined surface (403) at one end facing the first rack (432), and the first rack (432) is correspondingly provided with a first driving element (436) that cooperates with the first driving inclined surface (403).

8. The culture medium preparation device for in vitro fertilized eggs according to claim 6, characterized in that: The middle parts of the first bearing sheet (422) and the second bearing sheet (423) are fixedly connected to the rotating shaft (421), and both ends extend freely along the radial direction of the rotating shaft (421); The driving structure comprises: A second gear (441) is rotationally connected to the machine body (100), the second gear (441) is transmission-connected to the rotating shaft (421), and the second gear (441) can only drive the rotating shaft (421) to rotate along a first direction; a second rack (442) meshing with the second gear (441), and the second rack (442) being slidably connected to the body (100), so that the second rack (442) has a seventh position and an eighth position that are switchable with each other; a second driving block (443) which is arranged on the conveying surface of the conveying assembly and can rotate along with the rotation of the conveying assembly; a second driving inclined surface (404) is arranged at one end of the second driving block (443) facing the second rack (442); and a second driving element (447) which matches the second driving inclined surface (404) is correspondingly arranged on the second rack (442); and A second elastic element is arranged on the machine body (100), and in a natural state, the second elastic element applies elastic force to the second rack (442), so that the second rack (442) has a tendency to move from the eighth position to the seventh position.

9. The culture medium preparation device for in vitro fertilized eggs according to claim 8, characterized in that: The device further comprises a limiting assembly, wherein z limiting assemblies are provided, wherein z=m+n, and the z limiting assemblies correspond to m first carrying sheets (422) and n second carrying sheets (423) respectively, and the limiting assemblies are used to limit the first carrying sheet (422) and the second carrying sheet (423), and the limiting assemblies comprise: a limiting element (510) disposed in a side wall of the storage tube (410); the limiting element (510) is slidably connected to the storage tube (410) so that the limiting element (510) has a ninth position and an eighth position that can be switched to each other; and first limiting grooves (401) adapted to the limiting element (510) are correspondingly disposed on the side walls of the first bearing sheet (422) and the second bearing sheet (423); Wherein, when the limiting element (510) is in the ninth position, one end of the limiting element (510) facing the first limiting groove (401) is located in the first limiting groove (401); When the limiting element (510) is in the tenth position, the limiting element (510) is located outside the first limiting groove (401); When the torque applied to the rotating shaft (421) exceeds a preset value, the limiting element (510) can be moved out of the first limiting groove (401); and The third elastic element (520) has two ends connected to the limiting element (510) and the storage cylinder (410) respectively, and in a natural state, the third elastic element (520) has a tendency to move the limiting element (510) from the tenth position to the ninth position.

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