Desktop-level biological shaking table

Abstract

The invention discloses a desktop-level biological shaking table, and belongs to the technical field of biological shaking tables, the desktop-level biological shaking table comprises a power mechanism for providing power and a lower box body, the power mechanism is provided with a shaking mechanism for translation and left-right shaking, and the shaking mechanism is provided with a vertical mechanism for providing shaking perpendicular to the direction of the bottom surface of a biological culture dish; according to the invention, the rotation power of a single motor is finally decomposed and transmitted into the compound motion of the placing disc in three dimensions of horizontal reciprocating sliding, small-amplitude overturning in the front-back direction and vertical shaking in the vertical direction, so that more complex and efficient fluid shear force and convection effect can be generated on a solution in the culture dish; the mixing dead angle or layering phenomenon possibly occurring in a conventional single movement mode is effectively avoided, and particularly for the culture of viscous culture solution, easy-to-settle cells or microorganisms, the multi-dimensional disturbance can remarkably improve the mixing uniformity, the gas exchange efficiency and the cell suspension growth effect.

Description

Technical Field

[0001] This invention relates to the field of biological shaker technology, and in particular to a desktop biological shaker. Background Technology

[0002] In experimental research and production processes in fields such as biology, medicine, and chemistry, biological shakers are a crucial piece of equipment used to mix, shake, and culture samples in containers such as petri dishes, conical flasks, and multi-well plates at constant or ambient temperatures. Their core function is to promote the full exchange of gas and liquid within the container, the uniform mixing of the solution, and the suspended growth of cells or microorganisms by simulating continuous and controllable shaking, thereby ensuring the uniformity of experimental conditions and the reproducibility of results.

[0003] Currently, common biological shakers are mainly classified into the following categories based on their driving method and motion trajectory: First, reciprocating shakers, which achieve linear reciprocating motion of the platform through an eccentric wheel or crank-slider mechanism, with a relatively simple motion mode; second, rotary shakers, which make the platform perform horizontal circular motion, resulting in gentle mixing but potentially producing centrifugal effects. With the development of more efficient laboratory space and multifunctional equipment, desktop biological shakers are increasingly favored due to their small footprint and high flexibility.

[0004] However, existing desktop biological shakers still have some limitations. First, in terms of motion modes, many devices often only provide a single or fixed mixing trajectory, such as only horizontal reciprocating motion or only circular motion, making it difficult to flexibly adapt to different sample types, such as viscous liquids, cell clumps, and the differentiated requirements for hybrid dynamic characteristics. The mixing efficiency and effect need to be optimized. Second, for applications that require additional vertical vibration to enhance mixing or prevent precipitation, existing devices usually require a separate drive unit to achieve vertical motion, which increases the complexity of the structure and the manufacturing cost.

[0005] Therefore, there is an urgent need in this field for a compact, desktop-integrated biological shaker that can integrate multiple composite motion modes such as horizontal reciprocating, tilting and flipping, and vertical shaking, and achieve stepless, continuous and stable adjustment of the shaking amplitude during operation. At the same time, the power supply method of its internal power transmission and adjustment mechanism should be more reliable to avoid the problem of wire tangling, so as to improve the overall reliability, ease of operation and adaptability to different biological culture applications. Summary of the Invention

[0006] To address the aforementioned technical problems, the present invention adopts the following technical solution: a desktop biological shaker, comprising a power mechanism for providing power and a lower housing, wherein the power mechanism is provided with a shaking mechanism for translation and left-right shaking, and the shaking mechanism is provided with a vertical mechanism for providing shaking perpendicular to the bottom surface of the biological culture dish. The power mechanism includes a cross shaft, which is divided into a vertical section and a horizontal section. An inner layer plate is fixedly installed inside the lower housing. Two side plates are fixedly installed on the inner layer plate. Arc-shaped slides are provided on the side plates. The outer surface of the side plates is in contact with the inner surface of the lower housing. The rocking mechanism includes a central bar, on which a movable frame is fixedly mounted, and on which two movable racks are fixedly mounted.

[0007] Furthermore, the rocking mechanism also includes a sliding seat, on which two movable guide pillars are slidably mounted. Movable columns are fixedly mounted at the ends of the movable guide pillars. The movable columns slide along the arc-shaped slide rail, and the horizontal section of the cross shaft is rotatably mounted below the sliding seat.

[0008] Furthermore, the rocking mechanism also includes a top column fixedly installed on the top of the cross shaft, two inner semi-circular disks fixedly installed on the sliding seat, an inner arc groove provided on the inner semi-circular disk, a lower column rotatably installed on the inner semi-circular disk, and the center of the inner arc groove coincides with the center of the lower column, and a rotating rod fixedly installed on the lower column.

[0009] Furthermore, the rocking mechanism also includes a lower sliding groove and an upper sliding groove on the rotating rod. A middle sliding column is fixedly installed on the rotating rod. The middle sliding column slides in the inner arc sliding groove, and the top column slides in the lower sliding groove. Two lower end columns are provided below the center bar. The lower end columns slide in the upper sliding groove.

[0010] When the rotating frame rotates eccentrically with the slide block, the slide block drives the cross shaft to move. The cross shaft, through its rotational cooperation with the slide block, causes the slide block to slide back and forth along the movable guide post. At the same time, the movable post slides within the arc-shaped slide track, so that while the slide block slides horizontally back and forth along the movable guide post, the slide block will also perform a small-amplitude flip in the front and back directions.

[0011] When the sliding seat rotates relative to the cross shaft, the middle sliding column slides in the inner arc groove, while the top column slides in the lower groove and the lower end column slides in the upper groove. This causes the rotating rod to drive the center bar and the movable frame to slide back and forth along the lower end cover. The movable rack drives the rotating gear to rotate. Through the lever principle, the swing amplitude of the cross shaft relative to the sliding seat is amplified, making the swing amplitude of the rotating rod larger, thus allowing the movable frame to slide a farther distance relative to the lower end cover.

[0012] Furthermore, the power mechanism also includes a conductive ring fixedly mounted on the inner layer plate, an inner motor fixedly mounted on the inner layer plate, a rotating frame fixedly mounted on the motor shaft of the inner motor, an adjusting motor fixedly mounted on the rotating frame, an adjusting screw rotatably mounted on the rotating frame, the adjusting screw being fixedly mounted to the motor shaft of the adjusting motor, a brush fixedly mounted on the rotating frame, the brush sliding along the conductive ring, the brush being connected to the adjusting motor via wires, a slide block slidably mounted on the rotating frame, the slide block and the adjusting screw forming a threaded transmission, and the cross shaft sliding up and down along the slide block.

[0013] Furthermore, the power mechanism also includes an adjustment knob, a main switch, and a speed knob fixedly installed on the side of the lower housing. The adjustment knob is electrically connected to the adjustment motor, the speed knob is electrically connected to the internal motor, and the main switch is electrically connected to the conductive ring, the adjustment motor, and the internal motor.

[0014] When using, first place the culture dish containing the biological culture medium into the placement tray, turn on the main switch, at which point the conductive ring, the internal motor, and the adjusting motor are powered on. Turning the adjusting knob controls the rotation of the adjusting motor, which in turn drives the adjusting screw to rotate. The adjusting screw drives the slide to slide along the rotating frame, thereby adjusting the eccentricity of the cross shaft relative to the motor shaft of the internal motor, thus adjusting the shaking amplitude.

[0015] After the shaking amplitude is adjusted, turning the speed knob turns on the internal motor. After the internal motor is turned on, continuing to turn the speed knob adjusts the speed of the internal motor. The internal motor drives the rotating frame to rotate. During the rotation of the rotating frame, the brushes and conductive rings always remain in contact, and the conductive rings supply power to the brushes. The brushes supply electrical energy to the adjusting motor through wires, so that the eccentric distance of the slide relative to the internal motor shaft can be adjusted during the shaking process. Through the cooperation of the brushes and conductive rings, and the fact that the brushes and adjusting motor are powered by a power cord connection, it is possible to prevent the power cord of the adjusting motor from getting power from the fixed power take-off point inside the lower box, which would cause the power cord to become entangled.

[0016] The conductive ring drives the slide to rotate eccentrically, which in turn drives the cross shaft to rotate eccentrically. As the slide rotates relative to the cross shaft, the cross shaft slides up and down relative to the slide.

[0017] Furthermore, the vertical mechanism includes an upper cover fixedly mounted on a sliding seat, a center bar sliding along the lower surface of the upper cover, a movable frame sliding along the lower surface of the upper cover, two lifting columns slidably mounted on the upper cover, a horizontal groove frame fixedly mounted below the lifting columns, a horizontal sliding groove provided on the horizontal groove frame, an eccentric turntable rotatably mounted inside the sliding seat, an eccentric column eccentrically mounted on the eccentric turntable, the eccentric column sliding within the horizontal sliding groove of the horizontal groove frame, and a rotating gear fixedly mounted on the eccentric turntable, the rotating gear meshing with the movable rack.

[0018] Furthermore, the vertical mechanism also includes a guide post slidably mounted on the upper cover, a placement plate fixedly mounted above the guide post, the lower surface of the placement plate contacting the top of the lifting post, a lower end cover fixedly mounted below the guide post, and a guide post spring provided between the lower end cover and the upper cover.

[0019] When the center bar and the movable frame slide back and forth relative to the top cover, the movable rack drives the rotating gear and the eccentric turntable to rotate back and forth. The sliding of the eccentric column in the transverse groove of the transverse slot frame drives the transverse slot frame and the lifting column to rise and fall. When the lifting column rises, it lifts the placement plate, and the vertical guide column slides along the top cover. The guide column spring is compressed. When the lifting column falls, the guide column spring rebounds, and the placement plate falls, thus realizing the up and down shaking of the placement plate relative to the top cover.

[0020] The internal motor drives the sliding seat and the placement plate to slide back and forth along the movable guide column, and the movable column slides along the arc-shaped slide, causing the sliding seat and the placement plate to rotate back and forth slightly. The placement plate also shakes up and down relative to the top cover, thus shaking and mixing the biological culture medium in the culture dish placed on the placement plate.

[0021] The beneficial effects of this invention compared with the prior art are: (1) This invention decomposes and transmits the rotational power of a single motor into a composite motion of three dimensions: horizontal reciprocating sliding, small-amplitude flipping in the front and back directions, and vertical shaking. This can generate more complex and efficient fluid shearing force and convection effect on the solution in the culture dish, effectively avoiding the mixing dead zone or stratification phenomenon that may occur in the conventional single motion mode. Especially for the culture of viscous culture medium, easily sedimented cells or microorganisms, this multidimensional disturbance can significantly improve the mixing uniformity, gas exchange efficiency and cell suspension growth effect; (2) This invention can not only set the amplitude by adjusting the knob before the equipment is started, but also continuously and smoothly adjust the amplitude by adjusting the knob during the operation of the shaker. The eccentricity of the shaft rotation changes the amplitude of the shaking in real time, which solves the problem that traditional shakers must be stopped and manually adjusted, greatly improving the flexibility and efficiency of experimental operation, allowing users to dynamically optimize the mixing conditions according to the real-time changes in the experimental process or sample state; (3) The shaking mechanism set in this invention swings the cross shaft at a small angle relative to the sliding seat, and through the principle of lever, amplifies it into a linear reciprocating motion with a larger stroke for the movable frame and the center bar. Finally, this amplified motion drives the vertical mechanism to generate effective vertical shaking, so that the equipment does not need to use a large motor or a huge mechanism to obtain a large stroke. While maintaining the compact size of the desktop equipment, it achieves a stronger and more complete shaking effect, optimizing the balance between space utilization and performance. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the power mechanism structure of the present invention. Figure 1 .

[0024] Figure 3 This is a schematic diagram of the power mechanism structure of the present invention. Figure 2 .

[0025] Figure 4 This is a schematic diagram of the shaking mechanism of the present invention. Figure 1 .

[0026] Figure 5 This is a schematic diagram of the shaking mechanism of the present invention. Figure 2 .

[0027] Figure 6 This is a schematic diagram of the shaking mechanism of the present invention. Figure 3 .

[0028] Figure 7 This is a schematic diagram of the vertical mechanism structure of the present invention. Figure 1 .

[0029] Figure 8 This is a schematic diagram of the vertical mechanism structure of the present invention. Figure 2 .

[0030] Figure 9 This is a schematic diagram of the vertical mechanism structure of the present invention. Figure 3 .

[0031] Reference numerals: 101-Lower housing; 102-Adjusting knob; 103-Main switch; 104-Speed ​​knob; 105-Inner plate; 106-Side plate; 107-Arc-shaped slide rail; 108-Inner motor; 109-Conductive ring; 110-Rotating frame; 111-Brush; 112-Adjusting motor; 113-Adjusting screw; 114-Slide seat; 115-Cross shaft; 201-Sliding seat; 202-Modible guide post; 203-Modible post; 204-Inner semi-circular disc; 205- Inner circular arc slide groove; 206-rotating rod; 207-lower column; 208-top column; 209-middle slide column; 210-center bar; 211-movable frame; 212-lower end column; 213-upper slide groove; 214-lower slide groove; 215-movable rack; 301-lower end cover; 302-upper cover; 303-placement plate; 304-eccentric turntable; 305-eccentric column; 306-rotating gear; 307-horizontal groove frame; 308-lifting column; 309-vertical guide column; 310-guide column spring. Detailed Implementation

[0032] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0033] Example: Reference Figures 1-9A desktop biological shaker includes a power mechanism for providing power and a lower housing 101. The power mechanism is provided with a shaking mechanism for translation and left and right shaking, and the shaking mechanism is provided with a vertical mechanism for providing shaking perpendicular to the bottom surface of the biological culture dish. The power mechanism includes a cross shaft 115, which is divided into a vertical section and a horizontal section. An inner layer plate 105 is fixedly installed inside the lower housing 101. Two side plates 106 are fixedly installed on the inner layer plate 105. An arc-shaped slide rail 107 is provided on the side plate 106. The outer surface of the side plate 106 is in contact with the inner surface of the lower housing 101. The rocking mechanism includes a central bar 210, a movable frame 211 fixedly mounted on the central bar 210, and two movable racks 215 fixedly mounted on the movable frame 211.

[0034] like Figures 4-6 As shown, the rocking mechanism also includes a sliding seat 201, on which two movable guide posts 202 are slidably mounted. Movable posts 203 are fixedly mounted at the ends of the movable guide posts 202. The movable posts 203 slide along the arc-shaped slide rail 107. The horizontal section of the cross shaft 115 is rotatably mounted below the sliding seat 201.

[0035] like Figures 4-6 As shown, the rocking mechanism also includes a top column 208 fixedly installed on the top of the cross shaft 115, two inner semi-circular disks 204 fixedly installed on the sliding seat 201, an inner arc groove 205 provided on the inner semi-circular disk 204, a lower column 207 rotatably installed on the inner semi-circular disk 204, and the center of the inner arc groove 205 coincides with the center of the lower column 207, and a rotating rod 206 fixedly installed on the lower column 207.

[0036] like Figures 4-6 As shown, the rocking mechanism also includes a lower sliding groove 214 and an upper sliding groove 213 provided on the rotating rod 206. A middle sliding column 209 is fixedly installed on the rotating rod 206. The middle sliding column 209 slides in the inner arc sliding groove 205. The top column 208 slides in the lower sliding groove 214. Two lower end columns 212 are provided below the center bar 210. The lower end columns 212 slide in the upper sliding groove 213.

[0037] When the rotating frame 110 rotates eccentrically with the slide 114, the slide 114 drives the cross shaft 115 to move. The cross shaft 115, through its rotational cooperation with the slide 201, drives the slide 201 to slide back and forth along the movable guide post 202. At the same time, the movable post 203 slides in the arc-shaped slide track 107, so that while the slide 201 slides back and forth horizontally along the movable guide post 202, the slide 201 will also perform a small-amplitude flip in the front and back directions.

[0038] When the sliding seat 201 rotates relative to the cross shaft 115, the middle sliding column 209 slides in the inner arc groove 205, while the top column 208 slides in the lower groove 214 and the lower end column 212 slides in the upper groove 213. This causes the center bar 210 and the movable frame 211 to slide back and forth along the lower end cover 301 via the rotating rod 206. The movable rack 215 drives the rotating gear 306 to rotate. Through the lever principle, the swing amplitude of the cross shaft 115 relative to the sliding seat 201 is amplified, making the swing amplitude of the rotating rod 206 larger, thus allowing the movable frame 211 to slide a farther distance relative to the lower end cover 301.

[0039] like Figure 2 , Figure 3 As shown, the power mechanism also includes a conductive ring 109 fixedly mounted on the inner layer plate 105. An inner motor 108 is fixedly mounted on the inner layer plate 105. A rotating frame 110 is fixedly mounted on the motor shaft of the inner motor 108. An adjusting motor 112 is fixedly mounted on the rotating frame 110. An adjusting screw 113 is rotatably mounted on the rotating frame 110. The adjusting screw 113 is fixedly mounted to the motor shaft of the adjusting motor 112. A brush 111 is fixedly mounted on the rotating frame 110. The brush 111 slides along the conductive ring 109. The brush 111 is connected to the adjusting motor 112 via a wire. A slide block 114 is slidably mounted on the rotating frame 110. The slide block 114 and the adjusting screw 113 form a threaded transmission. The cross shaft 115 slides up and down along the slide block 114.

[0040] like Figure 2 , Figure 3 As shown, the power mechanism also includes an adjustment knob 102, a main switch 103 and a speed knob 104 fixedly installed on the side of the lower housing 101. The adjustment knob 102 is electrically connected to the adjustment motor 112, the speed knob 104 is electrically connected to the internal motor 108, and the main switch 103 is electrically connected to the conductive ring 109, the adjustment motor 112 and the internal motor 108.

[0041] In use, first place the culture dish containing the biological culture medium into the placement tray 303, turn on the main switch 103, at which time the conductive ring 109, the internal motor 108 and the regulating motor 112 are energized. Rotating the regulating knob 102 can control the rotation of the regulating motor 112. The rotation of the regulating motor 112 drives the regulating screw 113 to rotate. The regulating screw 113 drives the slide 114 to slide along the rotating frame 110, thereby adjusting the eccentric distance of the cross shaft 115 relative to the motor shaft of the internal motor 108, thereby adjusting the shaking amplitude.

[0042] After the shaking amplitude is adjusted, rotating the speed knob 104 turns on the internal motor 108. After the internal motor 108 is turned on, continuing to rotate the speed knob 104 can adjust the speed of the internal motor 108. The internal motor 108 drives the rotating frame 110 to rotate. During the rotation of the rotating frame 110, the brush 111 and the conductive ring 109 always remain in contact. The conductive ring 109 supplies power to the brush 111. The brush 111 provides electrical energy to the regulating motor 112 through the wire. This allows the eccentric distance of the slide 114 relative to the motor shaft of the internal motor 108 to be adjusted during the shaking process. Through the cooperation of the brush 111 and the conductive ring 109, and the fact that the brush 111 and the regulating motor 112 are connected by a power cord, it is possible to prevent the power cord of the regulating motor 112 from getting tangled with the fixed power take-off point in the lower housing 101.

[0043] The conductive ring 109 drives the slide 114 to rotate eccentrically, which in turn drives the cross shaft 115 to rotate eccentrically. When the slide 201 rotates relative to the cross shaft 115, the cross shaft 115 slides up and down relative to the slide 114.

[0044] like Figures 7-9 As shown, the vertical mechanism includes an upper cover 302 fixedly mounted on a sliding seat 201, a center bar 210 sliding along the lower surface of the upper cover 302, a movable frame 211 sliding along the lower surface of the upper cover 302, two lifting columns 308 slidably mounted on the upper cover 302, a horizontal groove frame 307 fixedly mounted below the lifting columns 308, a horizontal sliding groove provided on the horizontal groove frame 307, an eccentric turntable 304 rotatably mounted inside the sliding seat 201, an eccentric column 305 eccentrically mounted on the eccentric turntable 304, the eccentric column 305 sliding in the horizontal sliding groove of the horizontal groove frame 307, a rotating gear 306 fixedly mounted on the eccentric turntable 304, and the rotating gear 306 meshing with the movable rack 215.

[0045] like Figures 7-9 As shown, the vertical mechanism also includes a vertical guide post 309 that is slidably mounted on the upper cover 302. A placement plate 303 is fixedly mounted above the vertical guide post 309. The lower surface of the placement plate 303 contacts the top of the lifting post 308. A lower end cover 301 is fixedly mounted below the vertical guide post 309. A guide post spring 310 is provided between the lower end cover 301 and the upper cover 302.

[0046] When the center bar 210 and the movable frame 211 slide back and forth relative to the upper cover 302, the movable rack 215 drives the rotating gear 306 and the eccentric turntable 304 to rotate back and forth. The eccentric column 305 slides in the transverse groove of the transverse slot frame 307, which drives the transverse slot frame 307 and the lifting column 308 to rise and fall. When the lifting column 308 rises, it lifts the placement plate 303. The vertical guide column 309 slides along the upper cover 302, and the guide column spring 310 is compressed. When the lifting column 308 falls, the guide column spring 310 rebounds, and the placement plate 303 falls, thereby realizing the up and down shaking of the placement plate 303 relative to the upper cover 302.

[0047] That is, the internal motor 108 drives the sliding seat 201 and the placement plate 303 to slide back and forth along the movable guide post 202, and the movable post 203 slides along the arc-shaped slide rail 107, causing the sliding seat 201 and the placement plate 303 to rotate back and forth slightly, and the placement plate 303 to shake up and down relative to the upper cover 302, thereby shaking and mixing the biological culture medium in the culture dish placed on the placement plate 303.

[0048] The working principle of the desktop biological shaker disclosed in this invention is as follows: When in use, first place the culture dish containing biological culture medium into the placement tray 303, turn on the main switch 103, at this time the conductive ring 109, the internal motor 108 and the regulating motor 112 are energized, and rotating the regulating knob 102 can control the rotation of the regulating motor 112. The rotation of the regulating motor 112 drives the regulating screw 113 to rotate, and the regulating screw 113 drives the slide 114 to slide along the rotating frame 110, thereby adjusting the eccentric distance of the cross shaft 115 relative to the motor shaft of the internal motor 108, thereby adjusting the shaking amplitude.

[0049] After the shaking amplitude is adjusted, rotating the speed knob 104 turns on the internal motor 108. After the internal motor 108 is turned on, continuing to rotate the speed knob 104 can adjust the speed of the internal motor 108. The internal motor 108 drives the rotating frame 110 to rotate. During the rotation of the rotating frame 110, the brush 111 and the conductive ring 109 always remain in contact. The conductive ring 109 supplies power to the brush 111. The brush 111 provides electrical energy to the regulating motor 112 through the wire. This allows the eccentric distance of the slide 114 relative to the motor shaft of the internal motor 108 to be adjusted during the shaking process. Through the cooperation of the brush 111 and the conductive ring 109, and the fact that the brush 111 and the regulating motor 112 are connected by a power cord, it is possible to prevent the power cord of the regulating motor 112 from getting tangled with the fixed power take-off point in the lower housing 101.

[0050] The conductive ring 109 drives the slide 114 to rotate eccentrically, which in turn drives the cross shaft 115 to rotate eccentrically. When the slide 201 rotates relative to the cross shaft 115, the cross shaft 115 slides up and down relative to the slide 114. Through the rotational cooperation between the cross shaft 115 and the slide 201, the slide 201 is driven to slide back and forth along the movable guide post 202. At the same time, the movable post 203 slides within the arc-shaped slide track 107, so that while the slide 201 slides horizontally back and forth along the movable guide post 202, the slide 201 will also perform a small-amplitude flip in the front and back directions. When the sliding seat 201 rotates relative to the cross shaft 115, the middle sliding column 209 slides in the inner arc groove 205, while the top column 208 slides in the lower groove 214 and the lower end column 212 slides in the upper groove 213. This causes the center bar 210 and the movable frame 211 to slide back and forth along the lower end cover 301 via the rotating rod 206. The movable rack 215 drives the rotating gear 306 to rotate. Through the lever principle, the swing amplitude of the cross shaft 115 relative to the sliding seat 201 is amplified, making the swing amplitude of the rotating rod 206 larger, thus allowing the movable frame 211 to slide a farther distance relative to the lower end cover 301. When the center bar 210 and the movable frame 211 slide back and forth relative to the upper cover 302, the movable rack 215 drives the rotating gear 306 and the eccentric turntable 304 to rotate back and forth. The eccentric column 305 slides in the transverse groove of the transverse slot frame 307, which drives the transverse slot frame 307 and the lifting column 308 to rise and fall. When the lifting column 308 rises, it lifts the placement plate 303. The vertical guide column 309 slides along the upper cover 302, and the guide column spring 310 is compressed. When the lifting column 308 falls, the guide column spring 310 rebounds, and the placement plate 303 falls, thereby realizing the up and down shaking of the placement plate 303 relative to the upper cover 302.

[0051] That is, the internal motor 108 drives the sliding seat 201 and the placement plate 303 to slide back and forth along the movable guide post 202, and the movable post 203 slides along the arc-shaped slide rail 107, causing the sliding seat 201 and the placement plate 303 to rotate back and forth slightly, and the placement plate 303 to shake up and down relative to the upper cover 302, thereby shaking and mixing the biological culture medium in the culture dish placed on the placement plate 303.

[0052] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the present invention based on the technical solution and inventive concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A desktop biological shaker, comprising a power mechanism for providing power and a lower housing (101), characterized in that: The power mechanism is equipped with a shaking mechanism for translation and left-right swaying, and the shaking mechanism is equipped with a vertical mechanism for providing swaying perpendicular to the bottom surface of the biological culture dish. The power mechanism includes a cross shaft (115), which is divided into a vertical section and a horizontal section. An inner layer plate (105) is fixedly installed inside the lower housing (101). Two side plates (106) are fixedly installed on the inner layer plate (105). An arc-shaped slide rail (107) is provided on the side plate (106). The outer surface of the side plate (106) is in contact with the inner surface of the lower housing (101). The rocking mechanism includes a central bar (210), a movable frame (211) is fixedly installed on the central bar (210), and two movable racks (215) are fixedly installed on the movable frame (211).

2. The desktop biological shaker according to claim 1, characterized in that: The rocking mechanism also includes a sliding seat (201), on which two movable guide columns (202) are slidably mounted. Movable columns (203) are fixedly mounted at the ends of the movable guide columns (202). The movable columns (203) slide along the arc-shaped slide rail (107). The horizontal section of the cross shaft (115) is rotatably mounted below the sliding seat (201).

3. A desktop biological shaker according to claim 2, characterized in that: The rocking mechanism also includes a top column (208) fixedly installed on the top of the cross shaft (115), two inner semi-circular disks (204) fixedly installed on the sliding seat (201), an inner arc groove (205) provided on the inner semi-circular disk (204), a lower column (207) rotatably installed on the inner semi-circular disk (204), and the center of the inner arc groove (205) coincides with the center of the lower column (207), and a rotating rod (206) fixedly installed on the lower column (207).

4. A desktop biological shaker according to claim 3, characterized in that: The rocking mechanism also includes a lower sliding groove (214) and an upper sliding groove (213) provided on the rotating rod (206). A middle sliding column (209) is fixedly installed on the rotating rod (206). The middle sliding column (209) slides in the inner arc sliding groove (205). The top column (208) slides in the lower sliding groove (214). Two lower end columns (212) are provided below the center bar (210). The lower end columns (212) slide in the upper sliding groove (213).

5. A desktop biological shaker according to claim 1, characterized in that: The power mechanism also includes a conductive ring (109) fixedly installed on the inner layer plate (105), an inner motor (108) fixedly installed on the inner layer plate (105), a rotating frame (110) fixedly installed on the motor shaft of the inner motor (108), an adjusting motor (112) fixedly installed on the rotating frame (110), an adjusting screw (113) rotatably installed on the rotating frame (110), the adjusting screw (113) fixedly installed on the motor shaft of the adjusting motor (112), a brush (111) fixedly installed on the rotating frame (110), the brush (111) sliding along the conductive ring (109), the brush (111) and the adjusting motor (112) connected by wires, a slide block (114) slidably installed on the rotating frame (110), the slide block (114) and the adjusting screw (113) forming a threaded transmission, and the cross shaft (115) sliding up and down along the slide block (114).

6. A desktop biological shaker according to claim 5, characterized in that: The power mechanism also includes an adjustment knob (102), a main switch (103), and a speed knob (104) fixedly installed on the side of the lower housing (101). The adjustment knob (102) is electrically connected to the adjustment motor (112), the speed knob (104) is electrically connected to the inner motor (108), and the main switch (103) is electrically connected to the conductive ring (109), the adjustment motor (112), and the inner motor (108).

7. A desktop biological shaker according to claim 1, characterized in that: The vertical mechanism includes an upper cover (302) fixedly installed on a sliding seat (201), a center bar (210) sliding along the lower surface of the upper cover (302), a movable frame (211) sliding along the lower surface of the upper cover (302), two lifting columns (308) slidably installed on the upper cover (302), a horizontal groove frame (307) fixedly installed below the lifting columns (308), a horizontal sliding groove provided on the horizontal groove frame (307), an eccentric turntable (304) rotatably installed inside the sliding seat (201), an eccentric column (305) eccentrically provided on the eccentric turntable (304), the eccentric column (305) sliding in the horizontal sliding groove of the horizontal groove frame (307), a rotating gear (306) fixedly installed on the eccentric turntable (304), and the rotating gear (306) meshing with the movable rack (215).

8. A desktop biological shaker according to claim 7, characterized in that: The vertical mechanism also includes a vertical guide post (309) slidably mounted on the upper cover (302), a placement plate (303) is fixedly mounted above the vertical guide post (309), the lower surface of the placement plate (303) is in contact with the top of the lifting post (308), a lower end cover (301) is fixedly mounted below the vertical guide post (309), and a guide post spring (310) is provided between the lower end cover (301) and the upper cover (302).

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