Hanging basket capable of being vertically reset and rotating frame

Abstract

The utility model discloses a hanging basket capable of being vertically reset and a rotating frame, and the hanging basket comprises a pipe body with an opening at the upper end and a bottom cover at the lower end; the adjusting hole is formed in the center of the bottom cover; the backing ring is arranged on the outer peripheral wall of the upper part of the pipe body and plays a role in axial supporting and circumferential positioning; the bottom cover has a counterweight structure, so that the gravity center of the hanging basket is close to one end of the bottom cover. The hanging basket is used for placing the centrifuge tube consumables, the gravity center of the hanging basket is close to the bottom end to form a structure with a light upper part and a heavy lower part, and after centrifugation is finished, the hanging basket can accurately return to a vertical position under the action of gravity; on the basis, a bearing is arranged on a suspension shaft of the clamping ring, so that smooth resetting of the hanging basket is further guaranteed, the liquid level adjusting assembly can be conveniently operated from the lower portion, the suction assembly can be conveniently operated from the upper portion, and reliable operation of the automatic centrifugal machine is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of blood separation equipment, and particularly relates to a hanging basket and a rotating frame capable of vertical resetting. Background Art

[0002] A PRP centrifuge is a device for preparing PRP from whole blood and belongs to a kind of medical device, which is widely used in the medical field. Its main structure is a rotating rotor frame arranged in a relatively closed cavity. The rotor frame is evenly distributed with paired suspension devices in the circumferential direction for placing centrifuge tubes. The centrifuge tubes and balancing tubes are respectively placed in the matching tubes of the suspension devices. At present, the centrifuge on the market has high requirements for the operation technology of personnel and does not realize the whole-process sterile closed automatic extraction. If one-stop closed sterile automatic extraction functions such as centrifugation, positioning, puncture, adjusting the liquid level height, controlling the extraction speed, and precise extraction amount are to be realized, it is necessary to design the suspension devices separately to avoid misplacement by operators; it is also necessary for the centrifuge tubes to be automatically corrected to the specified positions to avoid misoperation caused by the centrifuge tubes staying in the wrong positions.

[0003] The applicant's prior patent application (application number 202310336560.3, application date March 31, 2023) discloses a PRP centrifugal extraction integrated automatic device, which is mainly composed of consumable components, a box body component, an upper cover component, a centrifugal component, an interface adjustment component, a pressing plate component, a suction component, etc. Its centrifugal component is a rotor frame driven by a motor, which has two groups of suspension devices composed of a first snap ring and a first matching pipe, and a second snap ring and a second matching pipe, and can be assembled separately from each other, so that after the centrifuge tube is placed in the specified matching pipe, it can be accurately assembled in the corresponding snap ring, thereby ensuring that the centrifuge tube can stay in the specified suction position after centrifugation, which is conducive to realizing one-stop closed sterile automatic extraction functions such as centrifugation, positioning, puncture, adjusting the liquid level height, controlling the extraction speed, and precise extraction amount.

[0004] During the centrifugation process of the matching pipe of the above-mentioned rotor frame, due to the action of centrifugal force, it will swing to a nearly horizontal direction. After centrifugation, it will return to the vertical direction under the action of gravity to facilitate the operation of the interface adjustment component from below and also facilitate the insertion of the needle by the suction component from above. In actual operation, it is found that after centrifugation, the matching pipe cannot be completely reset, that is, there is a certain angle between the centrifuge tube consumables and the vertical direction, which brings difficulties to the operation of the interface adjustment component and the suction component, and the automatic centrifuge will have misoperations or stop and alarm. Based on the above situation, it is necessary to further optimize and improve the rotor frame of the centrifugal component. Content of the Utility Model

[0005] In order to enable the centrifuge tube consumables and the sleeve to accurately reset to the vertical direction after centrifugation to improve the reliability of the centrifuge, the present utility model provides a hanging basket and a rotating frame capable of vertical resetting.

[0006] The technical solution adopted by the present utility model is as follows: A hanging basket capable of vertical resetting, comprising: a tube body with an open upper end and a bottom cover at the lower end; an adjustment hole provided at the center of the bottom cover; a retaining ring provided on the outer peripheral wall of the upper part of the tube body, which plays an axial support and circumferential positioning role; the bottom cover has a weight structure to make the center of gravity of the hanging basket close to one end of the bottom cover.

[0007] Preferably, the tube body and the bottom cover are of a split assembly structure, and the density of the bottom cover is greater than that of the tube body.

[0008] Preferably, the tube body is made of aluminum alloy material, and the bottom cover is made of stainless steel material.

[0009] Preferably, the tube body and the bottom cover are connected into one body by threads, welding, riveting or screws.

[0010] Preferably, a plurality of observation holes are provided on the circumferential wall of the tube body.

[0011] The second technical solution adopted by the present utility model is as follows: A rotating frame, comprising: a bracket provided inside the centrifuge; a motor installed on the bracket; a main shaft vertically arranged and rotating with the output shaft of the motor; a carrier frame, which is of a symmetrical structure and horizontally installed at the upper end of the main shaft; two snap rings respectively hinged at both ends of the carrier frame and capable of rotating around the axis of the main shaft; two of the hanging baskets are inserted into the snap rings, and the snap rings support below the retaining ring.

[0012] Preferably, both ends of the carrier frame respectively form fork-shaped cantilevers, and two hooks are formed at the outer ends of the cantilevers. The snap ring includes a ring body and suspension shafts on both sides, and the suspension shafts are installed in the hooks.

[0013] Preferably, a bearing installation groove is formed in the hook, a bearing is installed on the suspension shaft, and the bearing is assembled in the bearing installation groove.

[0014] Preferably, the hook is equipped with a cover plate with an X-shaped structure consistent with the shape of the cantilever. After the cover plate and the cantilever are assembled, a closed hole for preventing the snap ring from coming off is formed, and bending parts are provided on both sides of the cover plate corresponding to the positions of the suspension shafts.

[0015] Preferably, different numbers of positioning protrusions are provided on the upper surfaces of the two snap rings, and corresponding numbers of positioning holes are provided on the lower surfaces of the two retaining rings.

[0016] The utility model has the following beneficial effects: The hanging basket of the utility model is used to place consumables of centrifuge tubes. Its center of gravity is close to the bottom end, forming a structure with a lighter upper part and a heavier lower part. After centrifugation, under the action of gravity, the hanging basket can accurately return to the vertical position. On this basis, the bearing on the suspension shaft of the snap ring further ensures the smooth reset of the hanging basket, thus facilitating the operation of the liquid level adjustment component from below and the suction component from above, and ensuring the reliable operation of the automatic centrifuge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the carrier in the embodiment of the utility model.

[0019] Figure 3 It is an assembly schematic diagram of the snap ring and the sleeve in the embodiment of the utility model.

[0020] Figure 4 It is a cross-sectional schematic diagram of the consumables of the centrifuge tube in the embodiment of the utility model.

[0021] Bracket 1; motor 2; main shaft 3; carrier 4, cantilever 401, hook 402, bearing mounting groove 403; snap ring 5, ring body 501, suspension shaft 502, positioning protrusion 503; hanging basket 6, tube body 601, bottom cover 602, adjustment hole 603, support ring 604, observation hole 605, positioning hole 606; bearing 7; cover plate 8, bending part 801; consumables 9 of centrifuge tube, outer shell 901, central tube 902, adjustment piston 903. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further describes the utility model in conjunction with the embodiments and the drawings.

[0023] In the embodiment, as Figures 1 - 4 shown, it is a rotating frame of an automatic centrifuge, including: bracket 1, arranged inside the centrifuge; motor 2, installed on the bracket 1; main shaft 3, vertically arranged and rotating with the output shaft of the motor 2; carrier 4, with a symmetrical structure, horizontally installed at the upper end of the main shaft 3; two snap rings 5, respectively hinged at both ends of the carrier 4 and capable of rotating around the axis of the main shaft 3; two hanging baskets 6, inserted into the snap rings 5, and the snap rings 5 are supported below the support ring 604. The hanging basket 6 among them includes: tube body 601, with an open upper end and a bottom cover 602 at the lower end; adjustment hole 603, arranged at the center of the bottom cover 602; support ring 604, arranged on the outer peripheral wall of the upper part of the tube body 601, playing the role of axial support and circumferential positioning; the bottom cover 602 has a weight structure, making the center of gravity of the hanging basket 6 close to one end of the bottom cover 602. The consumables 9 of the centrifuge tube used in this embodiment are as Figure 4As shown, it changes the position of the PRP liquid level in the outer housing 901 by adjusting the axial movement of the piston 903 (i.e., directly pushing through the adjustment hole 603). In this embodiment, the hanging basket 6 is used to place the centrifuge tube consumable 9, and its center of gravity is close to the bottom end, forming a structure with a lighter upper part and a heavier lower part. After centrifugation, the hanging basket 6 can accurately return to the vertical position under the action of gravity.

[0024] In the embodiment, as Figure 3 shown, the tube body 601 and the bottom cover 602 are of a split-assembled structure, and the density of the bottom cover 602 is greater than that of the tube body 601. Specifically, the tube body 601 is made of aluminum alloy, and the bottom cover 602 is made of stainless steel, and the density of the bottom cover 602 is much greater than that of the tube body 601. The tube body 601 and the bottom cover 602 can be connected by means of threads, welding, riveting or screw connection, etc. Among them, an internal thread is provided at the bottom of the tube body 601 and an external thread is provided on the bottom cover 602, and the overall process is relatively simple and the assembly is also very convenient.

[0025] In the embodiment, as Figure 3 shown, a plurality of observation holes 605 are provided in the circumferential wall of the tube body 601. In this embodiment, on the premise of ensuring the strength of the tube body 601, a relatively large number of relatively large-sized observation holes 605 are provided to ensure the accurate recognition of the PRP liquid level by the visual recognition device, thereby ensuring the accuracy of control. At the same time, this structure also makes the center of gravity of the hanging basket 6 closer to the bottom cover 602.

[0026] In the embodiment, as Figure 1 、 2 shown, both ends of the carrier 4 respectively form a fork-shaped cantilever 401, and two hooks 402 are formed at the outer end of the cantilever 401. The snap ring 5 includes a ring body 501 and suspension shafts 502 on both sides, and the suspension shafts 502 are installed in the hooks 402. This structure enables the two snap rings 5 to be stably installed at both ends of the carrier 4, with uniform left and right forces and smooth operation during high-speed rotation.

[0027] In the embodiment, as Figure 1 、 2 、3 shown, a bearing installation groove 403 is formed in the hook 402, and a bearing 7 is installed on the suspension shaft 502, and the bearing 7 is assembled in the bearing installation groove 403. The bearing 7 prevents jamming between the suspension shaft 502 of the snap ring 5 and the hook 402, further ensuring the smooth reset of the hanging basket 6, and thus facilitating the operation of the liquid level adjustment assembly from below and the suction assembly from above, ensuring the reliable operation of the automatic centrifuge.

[0028] In the embodiment, as Figure 1 、 2As shown, the hook 402 is equipped with a cover plate 8 having an X-shaped structure that conforms to the shape of the cantilever 401. After the cover plate 8 is assembled with the cantilever 401, a closed hole is formed to prevent the snap ring 5 from coming out. Bending portions 801 are provided on both sides of the cover plate 8 corresponding to the positions of the suspension shafts 502. The cover plate 8 of this embodiment limits the positions of the two snap rings 5, preventing the operator from accidentally changing the positions of the two snap rings 5, thereby ensuring the accurate and reliable position of the centrifuge tube consumable 9. The cover plate 8 and the cantilever 401 are fixed together by bolts, which can also improve the strength of the carrier 4 and increase the overall rigidity. The bending portions 801 axially limit the suspension shafts 502.

[0029] In the embodiment, as Figure 1 , 3 shown, the upper surfaces of the two snap rings 5 are provided with positioning protrusions 503 having different numbers, and the lower surfaces of the two support rings 604 are provided with corresponding positioning holes 606. Specifically, Figure 1 the left snap ring 5 is provided with one positioning protrusion 503, and the corresponding left support ring 604 is provided with one positioning hole 606; the right snap ring 5 is provided with two positioning protrusions 503, and the corresponding right support ring 604 is provided with two positioning holes 606. The above structure is an anti-fooling design, which can assemble the two snap rings 5 and the two hanging baskets 6 in one-to-one correspondence, preventing the operator from misplacing, thereby improving the operation accuracy and ensuring that the centrifuge tube consumable 9 can stay at the designated suction position after centrifugation, facilitating the realization of one-stop closed aseptic automated extraction functions such as centrifugation, positioning, puncture, adjusting the liquid level height, controlling the extraction speed, and precise extraction volume. Compared with the structure in the patent document (application number 202320686979.7, application date March 31, 2023), the structures of the snap ring 5 and the hanging basket 6 in this embodiment are optimized, reducing the height. This compact design helps to perform centrifugation operations in a limited space, simplifies the structure, and reduces the equipment volume.

[0030] Obviously, the above embodiments of the present utility model are only examples for illustrating the present utility model, and are not intended to limit the implementation manners of the present utility model. Other obvious changes or variations derived from the essential spirit of the present utility model still fall within the protection scope of the present utility model.

Claims

1. A hanging basket capable of vertical resetting, comprising: The tube body (601) has an open upper end and a bottom cover (602) at the lower end; An adjustment hole (603) is arranged at the center of the bottom cover (602); A support ring (604) is arranged on the outer peripheral wall of the upper part of the tube body (601) and plays the role of axial support and circumferential positioning; The feature is that the bottom cover (602) has a counterweight structure so that the center of gravity of the hanging basket (6) is close to one end of the bottom cover (602).

2. The vertically repositionable hanging basket according to claim 1, characterized in that: The tube body (601) and the bottom cover (602) are of a split assembly structure, and the density of the bottom cover (602) is greater than the density of the tube body (601).

3. The vertically repositionable hanging basket according to claim 2, characterized in that: The tube body (601) is made of aluminum alloy, and the bottom cover (602) is made of stainless steel.

4. The vertically repositionable hanging basket according to claim 2, characterized in that: The tube body (601) and the bottom cover (602) are connected as a whole through threads, welding, riveting or screws.

5. The vertically repositionable hanging basket according to claim 1, characterized in that: A plurality of observation holes (605) are provided on the circumferential wall of the tube body (601).

6. A rotating frame, characterized in that: include: A support (1) is arranged in the centrifuge; A motor (2) mounted on the bracket (1); A main shaft (3) is arranged vertically and rotates along with the output shaft of the motor (2); The carrier (4) is a symmetrical structure and is horizontally mounted on the upper end of the main shaft (3); Two clamping rings (5) are respectively hinged on two ends of the carrier (4) and can rotate around the axis of the main shaft (3); Two hanging baskets (6) as described in any one of claims 1 to 5 are inserted into the clamping ring (5), and the clamping ring (5) is supported below the support ring (604).

7. The rotating frame according to claim 6, characterized in that: The two ends of the carrier (4) each form a cantilever (401) of a fork-shaped structure, and the outer ends of the cantilever (401) form two hooks (402). The clamping ring (5) comprises a ring body (501) and suspension shafts (502) on both sides, and the suspension shafts (502) are installed in the hooks (402).

8. The rotating frame according to claim 7, characterized in that: A bearing installation groove (403) is formed in the hook (402), a bearing (7) is installed on the suspension shaft (502), and the bearing (7) is assembled in the bearing installation groove (403).

9. The rotating frame according to claim 7, characterized in that: The hook (402) is provided with a cover plate (8) having an X-shaped structure consistent with the shape of the cantilever (401); after the cover plate (8) and the cantilever (401) are assembled, a closed hole is formed to prevent the snap ring (5) from falling out; and bent portions (801) are provided on both sides of the cover plate (8) at positions corresponding to the suspension shaft (502).

10. The rotating frame according to claim 6, characterized in that: The upper surfaces of the two clamping rings (5) are provided with different numbers of positioning protrusions (503), and the lower surfaces of the two support rings (604) are provided with a corresponding number of positioning holes (606).

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