Biological consumable self-replenishment device

CN224917050UActive Publication Date: 2026-10-30QINSHUO EXPERIMENTAL EQUIP (SHANGHAI) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522514769.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-10-30
Estimated Expiration
2035-11-27

AI Technical Summary

Technical Problem

[0002]在生物实验、临床检测及分子生物学研究中,移液枪枪头作为核心耗材,需频繁更换以避免交叉污染,其补料效率直接影响实验进度,目前实验室中移液枪枪头的补充多依赖人工操作,操作人员需将散装枪头逐个插入8×12矩阵式枪头盒的限位插槽中,该过程存在诸多弊端

Benefits of technology

1、设备通过整列组件与震动组件的协同,实现散装枪头的自动化规整,配合驱动组件带动枪头盒精准对接,无需人工逐个插装,相较于传统人工操作,效率更高,尤其适用于高通量实验场景,有效减少操作人员重复劳动,避免疲劳导致的效率下降。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224917050U_ABST
    Figure CN224917050U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of biological consumable self-replenishment equipment, including box, the one end of box is open design, and box top is remotely provided with feeding hopper in one end apart from opening, vertically be provided with mounting plate at the central position of box bottom, and driving assembly is assembled on mounting plate. Compared with prior art, the utility model has the beneficial effects as follows: the equipment realizes the automation of the regular bulk gun head by the cooperation of the whole set component and the vibration component, cooperates driving assembly to drive gun head box accurate butt joint, without manual installation one by one, compared with traditional manual operation, efficiency is higher, especially suitable for high-throughput experimental scene, effectively reduce the repetitive labor of operator, avoid the efficiency decline caused by fatigue, the dustproof plate of feeding hopper can isolate external dust, and the closed transition channel is formed by elastic rubber sleeve, to avoid gun head being contaminated in transfer process.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model is a self-replenishing device for biological consumables, belonging to the field of self-replenishing laboratory consumables. Background Technology

[0002] In biological experiments, clinical testing, and molecular biology research, pipette tips are core consumables that need to be replaced frequently to avoid cross-contamination. Their replenishment efficiency directly affects the experimental progress. Currently, the replenishment of pipette tips in the laboratory mostly relies on manual operation. Operators need to insert the bulk tips one by one into the limiting slots of the 8×12 matrix tip box. This process has many drawbacks.

[0003] On the one hand, manual refilling is labor-intensive and time-consuming, especially in high-throughput experimental scenarios. The repetitive insertion of a large number of pipette tips can easily lead to operator fatigue and reduce experimental efficiency. On the other hand, during manual operation, the pipette tips come into direct contact with the operator's hands. If protection is not in place, the pipette tips can easily become contaminated, which in turn affects the reliability of experimental results and increases the risk of experimental errors. Therefore, it is necessary to design a self-refilling device for biological consumables. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a self-replenishing device for biological consumables to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a self-replenishing device for biological consumables, comprising: The box body has an open design at one end, and a feeding hopper is provided at the top of the box body away from the opening. A mounting plate is vertically installed at the center of the bottom of the box body, and a drive assembly is mounted on the mounting plate. A support assembly is disposed at one end of the mounting plate near the opening of the housing. A gun head box is clamped on the support assembly, and a drive assembly can control the support assembly to move up and down along the vertical direction of the mounting plate. The array assembly is located at the top of the box, and both sides of the array assembly are elastically reset to the box through multiple return springs. Two baffles are installed in the box above the array assembly, and the baffles are located inside the box near the opening. The vibration assembly includes a drive motor and two eccentric wheels. The two eccentric wheels are symmetrically arranged on both sides of the bottom of the assembly away from the opening of the housing. The drive motor is installed on one side of the housing near the eccentric wheels. The output end of the drive motor is connected to the eccentric wheels, and the two eccentric wheels are connected by a rotating rod. The spacing adjuster is detachably installed on one side of the box via a limit sleeve.

[0006] Furthermore, the assembly includes an outer frame, an elastic sleeve, a baffle, a return spring, a cover, a vibration limiting plate, and spacers. The outer frame is rectangular, and a baffle is hinged to one end of the outer frame near the opening of the housing. Eleven spacers are evenly spaced parallel to each other along the width of the outer frame, and the length of the spacers is the same as the inner length of the outer frame. The distance between two adjacent spacers is greater than the outer diameter of the pipette tip's reservoir area, and the distance between two adjacent spacers is less than the outer diameter of the pipette tip's mounting end. A baffle is horizontally installed inside the outer frame above the spacers. The distance between the bottom and the top of the partition strip matches the height of the gun head mounting end. The length of the baffle is half the length of the partition strip, and the baffle is located inside the outer frame near the opening of the box. The end of the baffle away from the opening of the box is integrally provided with an upwardly sloping guide plate. Both sides of the outer frame are connected to the inner wall of the box through multiple return springs. At the bottom of both sides of the outer frame, corresponding to the position of the eccentric wheel, there is a vibration limiting plate with a "U" shaped cross section. The top of the eccentric wheel extends into the vibration limiting plate. The top of the outer frame away from the opening of the box is provided with an elastic rubber sleeve.

[0007] Furthermore, the outer frame has twelve gun outlets evenly distributed at one end near the opening of the housing, and the inner diameter of the gun outlets is larger than the outer diameter of the gun head mounting end. Magnetic grooves are provided on both sides of the outer frame near the opening of the housing, and magnetic blocks that match the magnetic grooves are provided on both sides of the baffle. Rubber plugs are evenly distributed at one end of the baffle near the spacer, and the shape of the rubber plugs matches the inner contour of the gun outlets.

[0008] Furthermore, the bottom of both sides of the outer frame is integrally connected with guide seats, and seven guide grooves are equally spaced in the guide seats. The top of the guide grooves is lower than the bottom of the partition strips, and through holes are opened on both sides of the outer frame at the positions corresponding to the guide grooves. Slots are opened on both sides of the box body at the positions corresponding to the guide seats.

[0009] Furthermore, a groove is provided on the top of the inner wall of the feeding hopper, and a dustproof plate is slidably connected in the groove. The four sides of the bottom of the elastic sleeve are respectively bonded to the three sides of the outer frame and the top of the inclined guide plate, and the top of the elastic sleeve is bonded to the top of the inner part of the box. The bottom of the feeding hopper extends into the elastic sleeve.

[0010] Furthermore, the bearing assembly includes a base, clamps, and compression springs. The longitudinal section of the base is U-shaped, and the width of the base is consistent with the inner width of the box. The clamps are symmetrically arranged on both sides inside the base, and both clamps are connected to the vertical plate of the base through compression springs. The end of the clamp near the opening of the box is designed to expand outward.

[0011] Furthermore, the spacing adjuster includes a handle, an end plate, and seven dividing rods. The end plate has seven dividing rods evenly spaced on one side, and the lengths of the seven dividing rods decrease sequentially. The cross-sectional shape of the dividing rods is adapted to the inner contour of the guide groove, and a handle is installed on the side of the end plate away from the dividing rods.

[0012] Furthermore, the drive assembly includes a servo motor, a sprocket mechanism, a lead screw, and a lead screw nut. A vertical lead screw groove is provided on both sides of the mounting plate, and a lead screw is rotatably connected to each groove. A platform is fixed to the end of the mounting plate away from the support assembly, and a servo motor is mounted on the top of the platform. The output end of the servo motor is connected to the two lead screws via the sprocket mechanism. The sprocket mechanism includes a drive wheel connected to the output end of the servo motor, two driven wheels connected to the lead screws, and two chains for transmission. A matching lead screw nut is fitted at the same height on both lead screws, and the two leads screw nuts are respectively connected to the two sides of the bottom of the base near the mounting plate.

[0013] The beneficial effects of this utility model are: 1. The equipment achieves automated and orderly arrangement of bulk gun heads through the collaboration of the alignment and vibration components. With the help of the drive component, the gun head boxes are precisely connected, eliminating the need for manual insertion of each one. Compared with traditional manual operation, it is more efficient and is especially suitable for high-throughput experimental scenarios. It effectively reduces repetitive work for operators and avoids efficiency decline caused by fatigue.

[0014] 2. The dustproof plate of the feeding hopper can isolate external dust, and the elastic rubber sleeve forms a closed transition channel to prevent the nozzle from being contaminated during the transfer process; the nozzle does not need to be touched by hand during the entire feeding process, and the alignment and insertion are completed only by mechanical structure, which reduces the risk of biological contamination from hand contact from the source and improves the reliability of experimental results. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a self-replenishing device for biological consumables according to this utility model; Figure 2 This is a cross-sectional structural diagram of a self-replenishing device for biological consumables according to this utility model; Figure 3 This is a schematic diagram of the load-bearing component structure of this utility model; Figure 4 This is a schematic diagram of the assembly structure of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the array component of this utility model; In the picture: 1. Housing; 101. Slot; 102. Stop bar; 103. Mounting plate; 1031. Screw groove; 104. Platform; 2. Feed hopper; 201. Slide chute; 202. Dustproof plate; 3. Arraying components; 301. Outer frame; 3011. Magnetic slot; 3012. Gun nozzle; 302. Elastic rubber sleeve; 303. Baffle; 3031. Magnetic block; 3032. Rubber plug; 304. Return spring; 305. Guide seat; 3051. Guide groove; 306. Cover plate; 3061. Inclined guide plate; 307. Vibration limiting plate; 308. Spacer strip; 4. Load-bearing components; 401. Carrier; 402. Clamping plate; 403. Compression spring; 5. Gun head box; 6. Vibration assembly; 601. Drive motor; 602. Eccentric wheel; 7. Spacing adjuster; 701. Handle; 702. End plate; 703. Divider bar; 8. Limiting sleeve; 9. Drive assembly; 901. Servo motor; 902. Sprocket mechanism; 903. Lead screw; 904. Nut. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] Please see Figures 1 to 5This utility model provides a technical solution: a self-replenishing device for biological consumables, including a housing 1 with an open end, and a feeding hopper 2 at the top of the housing 1 away from the opening. A mounting plate 103 is vertically positioned at the center of the bottom of the housing 1, and a drive assembly 9 is mounted on the mounting plate 103. A bearing assembly 4 is located at the end of the mounting plate 103 near the opening of the housing 1, and a nozzle box 5 is mounted on the bearing assembly 4. The drive assembly 9 can control the bearing assembly 4 to move up and down vertically along the mounting plate 103. A row assembly 3 is located at the top inside the housing 1, and both sides of the row assembly 3 are elastically reset to the housing 1 via multiple return springs 304. Two baffles 102 are installed inside the housing 1 above the row assembly 3, and the baffles 102 are located inside the housing 1 near the opening. A vibration assembly 6 includes a drive motor 601 and... Two eccentric wheels 602 are symmetrically arranged on both sides below the alignment assembly 3, away from the opening of the housing 1. A drive motor 601 is installed on one side of the housing 1 near the eccentric wheels 602. The output end of the drive motor 601 is connected to the eccentric wheels 602. The two eccentric wheels 602 are connected by a rotating rod. The spacing adjuster 7 is detachably installed on one side of the housing 1 through a limiting sleeve 8. The opening design of the housing 1 facilitates the placement and removal of the nozzle box 5. The feeding hopper 2 enables centralized feeding of nozzles. The mounting plate 103 provides a stable mounting base for the drive assembly 9. The drive assembly 9 drives the bearing assembly 4 to rise and fall. Together with the alignment function of the alignment assembly 3 and the vibration assembly 6, an automated process of "feeding-alignment-connection" is formed, which greatly improves the feeding efficiency. The baffle 102 limits the alignment assembly 3 to prevent displacement during vibration and ensure structural stability.

[0018] Please see Figure 4 and Figure 5The assembly 3 includes an outer frame 301, an elastic sleeve 302, a baffle 303, a return spring 304, a cover plate 306, a vibration limiting plate 307, and spacers 308. The outer frame 301 is a rectangular frame design, and the baffle 303 is hinged to one end of the outer frame 301 near the opening of the housing 1. Eleven spacers 308 are evenly distributed parallel to each other along the width direction of the outer frame 301 inside the outer frame 301, and the length of the spacers 308 is the same as the inner length of the outer frame 301. The distance between the two spacers 308 is greater than the outer diameter of the pipette tip's reservoir area, and the distance between two adjacent spacers 308 is less than the outer diameter of the pipette tip's mounting end. A baffle 303 is horizontally installed inside the outer frame 301 above the spacers 308, and the distance between the bottom of the baffle 303 and the top of the spacers 308 matches the height of the pipette tip's mounting end. The length of the baffle 303 is half the length of the spacers 308, and the baffle 303 is located inside the outer frame 301 near the opening of the housing 1. At one end, the baffle 303, away from the opening of the housing 1, is integrally provided with an upwardly inclined guide plate 3061. Both sides of the outer frame 301 are connected to the inner wall of the housing 1 by multiple return springs 304. At the bottom of both sides of the outer frame 301, corresponding to the position of the eccentric wheel 602, vibration limiting plates 307 with a "U" shaped cross section are provided. The top of the eccentric wheel 602 extends into the vibration limiting plate 307. At the top of the outer frame 301, away from the opening of the housing 1, is provided with... The elastic rubber sleeve 302 and the rectangular structure of the outer frame 301 provide stable space for the alignment of the gun heads. The eleven spacers 308 achieve gun head posture screening through specific spacing to ensure that the installation end faces upward. The baffle 303 and the inclined guide plate 3061 cooperate to guide the gun heads into position and improve the alignment accuracy. The vibration limiting plate 307 and the eccentric wheel 602 cooperate to make the alignment assembly 3 form directional vibration. The elastic rubber sleeve 302 takes into account both sealing and deformation functions, preventing gun head contamination without affecting vibration.

[0019] Please see Figure 4 The outer frame 301 has twelve evenly spaced nozzles 3012 near the opening of the housing 1, and the inner diameter of the nozzles 3012 is larger than the outer diameter of the nozzle mounting end. Magnetic grooves 3011 are provided on both sides of the outer frame 301 near the opening of the housing 1, and magnetic blocks 3031 that match the magnetic grooves 3011 are provided on both sides of the baffle 303. Rubber plugs 3032 are evenly spaced on the baffle 303 near the spacer 308. The shape of the rubber plugs 3032 matches the inner contour of the nozzles 3012. The twelve nozzles 3012 can ensure that the nozzle can pass through smoothly. The cooperation of the magnetic grooves 3011 and the magnetic blocks 3031 enables the baffle 303 to close and position quickly, making operation convenient. The rubber plugs 3032 seal the nozzles 3012 to prevent dust from entering the outer frame 301 and contaminating the nozzle when not replenishing material, thus improving experimental safety.

[0020] Please see Figure 1 and Figure 4The bottom of both sides of the outer frame 301 is integrally connected with guide seats 305, and seven guide grooves 3051 are equally spaced inside the guide seats 305. The top of the guide grooves 3051 is lower than the bottom of the partition strip 308. Through holes are opened on both sides of the outer frame 301 at the positions corresponding to the guide grooves 3051. Slots 101 are opened on both sides of the box 1 at the positions corresponding to the guide seats 305. The guide grooves 3051 of the guide seats 305 provide a precise insertion path for the separator rod 703. The design of the guide grooves 3051 being lower than the partition strip 308 avoids structural interference. The through holes of the outer frame 301 facilitate the insertion of the separator rod 703 to adjust the gun head spacing. The slots 101 of the box 1 cooperate with the guide seats 305 to facilitate the insertion of the spacing adjuster 7.

[0021] Please see Figure 2 The top of the inner wall of the feeding hopper 2 is provided with a sliding groove 201, and a dustproof plate 202 is slidably connected in the sliding groove 201. The four sides of the bottom of the elastic sleeve 302 are respectively bonded to the three sides of the outer frame 301 and the top of the inclined guide plate 3061, and the top of the elastic sleeve 302 is bonded to the top of the inside of the box 1. The bottom of the feeding hopper 2 extends into the elastic sleeve 302. The sliding groove 201 of the feeding hopper 2 and the dustproof plate 202 cooperate to realize the opening and closing of the feeding hopper 2 as needed, reducing the entry of dust. The elastic sleeve 302, the outer frame 301, the inclined guide plate 3061 and the box 1 form a closed transition channel. With the extension design of the bottom of the feeding hopper 2, it is ensured that the nozzle is transferred in a closed environment throughout the process, completely eliminating the risk of contamination during the transfer process.

[0022] Please see Figure 3 The supporting component 4 includes a carrier 401, a clamping plate 402, and a compression spring 403. The longitudinal section of the carrier 401 is U-shaped, and the width of the carrier 401 is the same as the inner width of the housing 1. The clamping plates 402 are symmetrically arranged on both sides inside the carrier 401, and both clamping plates 402 are connected to the vertical plate of the carrier 401 through the compression spring 403. The end of the clamping plate 402 near the opening of the housing 1 has an outward flaring design. The U-shaped structure of the carrier 401 is the same as the inner width of the housing 1 to ensure that it does not shift during lifting. The clamping plate 402 achieves elastic clamping through the compression spring 403, which can be adapted to different brands of gun head boxes 5, improving the versatility of the equipment. The outward flaring design of the clamping plate 402 forms a guide, so that the gun head box 5 can be quickly put into position without precise alignment, reducing the operation threshold.

[0023] Please see Figure 4The spacing adjuster 7 includes a handle 701, an end plate 702, and seven separator rods 703. Seven separator rods 703 are evenly spaced on one side of the end plate 702, with the lengths of the seven separator rods decreasing sequentially. The cross-sectional shape of the separator rods 703 matches the inner contour of the guide groove 3051. The handle 701 is installed on the side of the end plate 702 away from the separator rods 703. The seven separator rods 703 of decreasing length can be precisely inserted into the guide groove 3051 to longitudinally limit the gun head, enabling rapid adjustment of the row spacing and ensuring matching with the gun head groove of the gun head box 5. The separator rods 703 and guide groove 3051 have good compatibility and smooth insertion and removal. The handle 701 is ergonomically designed, facilitating quick spacing adjustment by operators and improving operational efficiency.

[0024] Please see Figure 3 The drive assembly 9 includes a servo motor 901, a sprocket mechanism 902, a lead screw 903, and a lead screw nut 904. A vertical lead screw groove 1031 is provided on both sides inside the mounting plate 103, and a lead screw 903 is rotatably connected to each groove 1031. A platform 104 is fixed to the end of the mounting plate 103 away from the support assembly 4, and the servo motor 901 is mounted on the top of the platform 104. The output end of the servo motor 901 is connected to the two lead screws 903 via the sprocket mechanism 902. The sprocket mechanism 902 includes components connected to the servo motor 901. The output end is connected to a drive wheel, two driven wheels connected to lead screws 903, and two chains for transmission. Both lead screws 903 are fitted with matching nuts 904 at the same height. The two nuts 904 are respectively connected to the two sides of the bottom of the carrier 401 near the mounting plate 103. The servo motor 901 provides stable power. The sprocket mechanism 902 achieves synchronous rotation of the two lead screws 903 through the cooperation of the drive wheel, driven wheel, and chain, ensuring that the carrier 401 rises and falls smoothly; and ensuring that the gun head box 5 is precisely aligned with the entire row of gun heads, avoiding misalignment during insertion.

[0025] Detailed implementation: The gun head box 5 is placed into the carrier 401 from the opening end of the housing 1. The end face of the gun head box 5 is in close contact with the mounting plate 103. The clamping plate 402 automatically clamps and centers the gun head box 5 under the action of the compression spring 403. The dustproof plate 202 of the sliding feeding hopper 2 is used to put in the gun head. The gun head enters the outer frame 301 through the closed channel formed by the elastic rubber sleeve 302. The vibration component 6 is started, and the drive motor 601 drives the eccentric wheel 602 to rotate, lifting the rear half of the alignment component 3. The reciprocating vibration is formed in conjunction with the reset spring 304. The gun head tumbles under vibration. Due to the spacing characteristics of the spacers 308, the mounting end is snapped into an "upward" position. The baffle 303 and the inclined guide plate 3061 assist in positioning and alignment. After the gun head falls into the gap of the spacers 308, the vibration component 6 stops working. The seven separator rods 703 of the spacing adjuster 7 are aligned with the guide grooves 3051 of the guide seat 305 and inserted, so that the separator rods 703 extend into the gun heads that have been initially positioned in the row assembly 3. The separator rods 703, with decreasing lengths, are used to longitudinally limit the gun head, adjusting the row spacing of the gun head to match the gun head groove in the gun head box 5. The drive component 9 is then started, and the servo motor 9... 01 The sprocket mechanism 902 drives the lead screw 903 to rotate, driving the carrier 401 and the gun head box 5 to move upward, so that the aligned gun heads are accurately inserted into the gun head slots of the gun head box 5. The gun head box 5 is pulled horizontally outward, and the gun head touches the baffle 303, causing it to flip around the hinge point. The magnetic block 3031 separates from the magnetic groove 3011, and the rubber plug 3032 disengages from the gun outlet 3012. The gun head box 5 drives the gun head to come out from the gun outlet 3012. The carrier 401 remains fixed. After the gun head is removed, the baffle 303 automatically resets and seals under the action of weight. The clamp 402 springs back, the carrier 401 resets, and the equipment completes the cycle and enters standby.

[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A self-replenishing device for biological consumables, characterized in that, include: The box (1) has an open design at one end, and a feeding hopper (2) is provided at the top of the box (1) away from the opening. A mounting plate (103) is vertically provided at the center of the bottom of the box (1), and a drive assembly (9) is mounted on the mounting plate (103). The support component (4) is located at one end of the mounting plate (103) near the opening of the housing (1). The gun head box (5) is clamped on the support component (4), and the drive component (9) can control the support component (4) to move up and down along the vertical direction of the mounting plate (103). The alignment assembly (3) is located at the top inside the box (1), and both sides of the alignment assembly (3) are connected to the box (1) by multiple return springs (304) to form an elastic return design. Two baffles (102) are installed inside the box (1) above the alignment assembly (3), and the baffles (102) are located inside the box (1) near the opening. The vibration assembly (6) includes a drive motor (601) and two eccentric wheels (602). The two eccentric wheels (602) are symmetrically arranged on both sides of the bottom of the assembly (3) away from the opening of the box (1). The drive motor (601) is installed on one side of the box (1) near the eccentric wheel (602). The output end of the drive motor (601) is connected to the eccentric wheel (602), and the two eccentric wheels (602) are connected by a rotating rod. The spacing adjuster (7) is detachably installed on one side of the housing (1) via a limiting sleeve (8).

2. The self-replenishing device for biological consumables according to claim 1, characterized in that: The aligning assembly (3) comprises an outer frame (301), an elastic rubber sleeve (302), a baffle plate (303), return springs (304), a cover plate (306), a vibration limiting plate (307) and partition strips (308). The outer frame (301) is designed as a rectangular frame, and one end of the outer frame (301) close to the opening of the box body (1) is hinged with the baffle plate (303). Eleven partition strips (308) are distributed in parallel at equal intervals in the inner part of the outer frame (301) along the width direction of the outer frame (301), the length of each partition strip (308) is consistent with the inner length of the outer frame (301), the spacing between two adjacent partition strips (308) is larger than the outer diameter of the liquid storage area of the pipette tip, and the spacing between two adjacent partition strips (308) is smaller than the outer diameter of the mounting end of the pipette tip. The baffle plate (303) is horizontally mounted in the outer frame (301) above the partition strips (308), and the spacing between the bottom of the baffle plate (303) and the top of the partition strips (308) matches the height of the tip mounting end. The length of the baffle plate (303) is half of the length of the partition strips (308), and the baffle plate (303) is located at the end inside the outer frame (301) close to the opening of the box body (1). An obliquely upward inclined guide plate (3061) is integrally provided at the end of the baffle plate (303) away from the opening of the box body (1). Both sides of the outer frame (301) are connected to the inner wall of the box body (1) through a plurality of return springs (304), and vibration limiting plates (307) with a "冂"-shaped cross section are respectively provided at positions corresponding to the eccentric wheels (602) on the bottoms of both sides of the outer frame (301). The top of the eccentric wheel (602) extends into the vibration limiting plate (307), and the elastic rubber sleeve (302) is provided at the end of the top of the outer frame (301) away from the opening of the box body (1).

3. The self-replenishing device for biological consumables according to claim 2, characterized in that: Twelve tip outlets (3012) are uniformly opened at the end of the outer frame (301) close to the opening of the box body (1), the inner diameter of each tip outlet (3012) is larger than the outer diameter of the tip mounting end. Magnetic attraction grooves (3011) are respectively provided on both sides of the end of the outer frame (301) close to the opening of the box body (1), and magnetic attraction blocks (3031) adapted to the magnetic attraction grooves (3011) are respectively provided on both sides of the baffle plate (303). Rubber plugs (3032) are uniformly provided at the end of the baffle plate (303) close to the partition strips (308), and the shape of each rubber plug (3032) matches the inner contour of the tip outlet (3012).

4. The self-replenishing device for biological consumables according to claim 2, characterized in that: Guide seats (305) are integrally connected to the bottoms of both sides of the outer frame (301), seven guide grooves (3051) are opened at equal intervals in each guide seat (305), the top of each guide groove (3051) is lower than the bottom of the partition strip (308), and through holes are respectively opened at positions corresponding to the guide grooves (3051) on both sides of the outer frame (301). Slots (101) are respectively opened at positions corresponding to the guide seats (305) on both sides of the box body (1).

5. A self-replenishing device for biological consumables according to claim 2, characterized in that: The top of the inner wall of the feeding hopper (2) is provided with a sliding groove (201), and a dustproof plate (202) is slidably connected in the sliding groove (201). The four sides of the bottom of the elastic sleeve (302) are respectively bonded to the three sides of the outer frame (301) and the top of the inclined guide plate (3061), and the top of the elastic sleeve (302) is bonded to the top of the inside of the box (1). The bottom of the feeding hopper (2) extends into the elastic sleeve (302).

6. The self-replenishing device for biological consumables according to claim 1, characterized in that: The supporting component (4) includes a base (401), a clamping plate (402) and a compression spring (403). The longitudinal section of the base (401) is designed in the shape of a "U". The width of the base (401) is consistent with the inner width of the box (1). The clamping plates (402) are symmetrically arranged on both sides inside the base (401). Both clamping plates (402) are connected to the vertical plate of the base (401) through the compression spring (403). The end of the clamping plate (402) near the opening of the box (1) is designed to expand outward.

7. A self-replenishing device for biological consumables according to claim 4, characterized in that: The spacing adjuster (7) includes a handle (701), an end plate (702), and seven divider rods (703). Seven divider rods (703) are equally spaced on one side of the end plate (702), and the lengths of the seven divider rods (703) decrease sequentially. The cross-sectional shape of the divider rods (703) is adapted to the inner contour of the guide groove (3051), and a handle (701) is installed on the side of the end plate (702) away from the divider rods (703).

8. A self-replenishing device for biological consumables according to claim 1, characterized in that: The drive assembly (9) includes a servo motor (901), a sprocket mechanism (902), a lead screw (903), and a lead screw nut (904). A vertical lead screw groove (1031) is provided on both sides inside the mounting plate (103), and a lead screw (903) is rotatably connected to each of the lead screw grooves (1031). A platform (104) is fixed to the end of the mounting plate (103) away from the bearing assembly (4), and a servo motor (901) is mounted on the top of the platform (104). The output end of (901) is connected to two lead screws (903) through a sprocket mechanism (902). The sprocket mechanism (902) includes a drive wheel connected to the output end of the servo motor (901), two driven wheels connected to the lead screws (903), and two chains for transmission. The two lead screws (903) are fitted with matching nuts (904) at the same height. The two nuts (904) are respectively connected to the two sides of the bottom of the base (401) near the mounting plate (103).