Quick locking structure of centrifugal hanging cup sealing cover

By setting a strip buckle and elastic element between the centrifugal hanging cup and the cup lid, the problem of loosening of the threaded cup lid during centrifugation is solved, achieving a fast and stable sealing effect and simplifying the operation process.

CN224486311UActive Publication Date: 2026-07-14SICHUAN SHUKE INSTR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN SHUKE INSTR CO LTD
Filing Date
2025-08-15
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing threaded cup lids may loosen during centrifugation because the centrifugal force is opposite to the direction of thread tightening, and the operation is time-consuming and laborious.

Method used

The design employs a strip buckle and elastic element. The two ends of the strip buckle are engaged between the centrifugal hanging cup and the cup lid. The elastic element, in the compressed and reset states, respectively enables the cup lid to engage and disengage from the centrifugal hanging cup, ensuring a stable connection under centrifugal force.

Benefits of technology

The process of opening and closing the cup lid has been simplified, improving operational efficiency, preventing the sealing cap from loosening, achieving a reliable and safe sealing effect, and supporting quick opening and closing of the cup lid with one hand.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of centrifugal cup structure discloses a kind of quick locking structure of centrifugal cup sealing cover, including banded buckle and at least two elastic members, the both ends of banded buckle can be respectively clamped between centrifugal cup and cup cover;Two the elastic members are respectively connected in the both ends of banded buckle, the elastic member one end is connected on banded buckle, the other end is abutted with the cup cover, when the state of elastic member compression, the cup cover and the centrifugal cup are unclamped, when the state of elastic member reset, the cup cover and the centrifugal cup keep clamping.The beneficial effects of the utility model are that when centrifugal force is generated in centrifugal cup, the reset force of elastic member ensures that the cup cover and the centrifugal cup keep clamping, reliable and safe sealing of centrifugal sample is realized, threaded connection cup cover and centrifugal cup are replaced, the operation process of opening and closing cup cover is simplified, and the operator is more convenient, and work efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of centrifugal hanging cup structures, specifically to a quick-locking structure for a centrifugal hanging cup sealing cap. Background Technology

[0002] With the progress of the times, society has higher and higher requirements for centrifuges. Centrifuges have begun to be used in a wide range of fields. When used for biological specimens, it is necessary to prevent the leakage of toxic and contaminated specimens and to reliably and safely seal the centrifuged samples.

[0003] The current centrifuges use a threaded locking structure. During centrifugation, the threaded lid may loosen because the centrifugal force is opposite to the direction of the thread tightening. In addition, both hands are required to open and close the lid, which is time-consuming and laborious. Utility Model Content

[0004] The technical problem to be solved by this utility model is that existing threaded cup lids may loosen during centrifugation because the centrifugal force is opposite to the direction of thread tightening. The purpose is to provide a quick-locking structure for the centrifugal hanging cup lid. When the centrifugal hanging cup generates centrifugal force, the restoring force of the elastic element ensures that the cup lid and the centrifugal hanging cup remain locked together, preventing the lid from loosening under the action of centrifugal force.

[0005] This utility model is achieved through the following technical solution:

[0006] A quick-locking structure for a centrifugal hanging cup sealing cap includes a strip buckle and at least two elastic elements. The two ends of the strip buckle can be respectively engaged between the centrifugal hanging cup and the cup cap. The two elastic elements are respectively connected to the two ends of the strip buckle. One end of the elastic element is connected to the strip buckle, and the other end abuts against the cup cap. When the elastic element is compressed, the cup cap is disengaged from the centrifugal hanging cup. When the elastic element is reset, the cup cap remains engaged with the centrifugal hanging cup.

[0007] The beneficial effects of this utility model are as follows: by setting a strip-shaped buckle and engaging both ends of the buckle between the centrifugal cup and the cup lid, and by providing elastic elements on the inner sides of both ends of the strip-shaped buckle, the restoring force of the elastic elements ensures that the cup lid remains engaged with the centrifugal cup when the centrifugal cup generates centrifugal force, preventing the sealing cap from loosening under the action of centrifugal force. When opening the cup lid from the centrifugal cup, simply press the elastic element to release the engagement and remove the cup lid directly. When closing the cup lid on the centrifugal cup, simply press the elastic element to insert both ends of the strip-shaped buckle between the cup lid and the centrifugal cup, then release the pressure to allow the elastic element to return to its restoring state, ensuring that the cup lid remains engaged with the centrifugal cup. This replaces the threaded connection between the cup lid and the centrifugal cup, simplifies the operation process of opening and closing the cup lid, makes operation more convenient for workers, and improves work efficiency.

[0008] In some embodiments, both ends of the strip buckle are provided with protrusions. The strip buckle extends across the outer top of the cup lid, and the protrusions at both ends engage with the inner top of the corresponding centrifugal hanging cup. By extending the strip buckle across the outer top of the cup lid, the pulling force exerted by the top of the cup lid on both ends of the strip buckle is utilized, allowing the pulling force and the restoring force of the elastic element to work together, thereby improving the engagement stability between the protrusions and the inner top of the centrifugal hanging cup.

[0009] In some embodiments, a snap-fit ​​groove is provided on the inner top side of the centrifugal hanging cup, and the protrusion can be snapped into the snap-fit ​​groove. The snap-fit ​​groove is annular and extends along the inner sidewall of the centrifugal hanging cup. By setting the snap-fit ​​groove to be annular and extending along the inner sidewall of the centrifugal hanging cup, the processing difficulty is reduced, so that no alignment is required when installing the protrusion, and a 360-degree one-handed quick opening and closing sealing cup lid is achieved.

[0010] In some embodiments, a stop portion is provided on the inner top side of the centrifugal cup, and when the cup lid is closed with the centrifugal cup, the stop portion abuts against the top of the protrusion. By providing a stop portion on the inner top side of the centrifugal cup to abut against the protrusion, the locking effect is improved.

[0011] In some embodiments, a recessed platform is provided on the outer bottom of the cup lid, which may be located inside the centrifugal hanging cup. When the cup lid and the centrifugal hanging cup are closed, the lower end of the protrusion abuts against the recessed platform. By setting the recessed platform to abut against the bottom of the protrusion, and cooperating with the stop portion to abut against the top of the protrusion, the locking effect of the protrusion is increased.

[0012] In some embodiments, both elastic elements are connected to the inner side of the strip buckle and located at the upper end of the corresponding protrusion. By placing both elastic elements at the upper end of the protrusion, the restoring force of the elastic elements can be directly applied to the protrusion, ensuring the locking effect.

[0013] In some embodiments, guide portions are provided at both ends of the strip buckle, and the elastic element is sleeved on the guide portions. A distance is provided between the two ends of the strip buckle and the outer side of the cup lid, and this distance is greater than the thickness of the protrusion. By providing guide portions, the elastic element is guided during compression and reset, ensuring that the reset force of the elastic element is perpendicular to the inner side of the strip buckle, thus guaranteeing a secure latching effect.

[0014] In some embodiments, both ends of the strip buckle are provided with pressing portions, which are located on the outer side of the corresponding elastic element. By providing pressing portions as pressing position markers, operators can easily locate the pressing position of the elastic element when opening and closing the cup lid, thereby improving the efficiency of opening and closing the cup lid.

[0015] In some embodiments, the surface of the pressing part is provided with several raised strips. By providing elongated raised strips on the outer surface of the pressing part, it is easier to increase friction with the hand and ensure the effectiveness of pressing the elastic element.

[0016] In some embodiments, a sealing strip is further included. A sealing strip mounting groove is provided on the inner side of the top of the centrifuge cup, and the sealing strip is located within the sealing strip mounting groove. When the cup lid is closed with the centrifuge cup lid, the sealing strip abuts against the bottom of the cup lid. By providing a sealing strip, a reliable and safe seal is ensured for the centrifuged sample when the cup lid is closed.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] 1. When the centrifugal hanging cup generates centrifugal force, the restoring force of the elastic element ensures that the cup lid and the centrifugal hanging cup remain locked together, preventing the sealing cap from loosening under the action of centrifugal force.

[0019] 2. When opening the cup lid from the centrifuge hanging cup, simply press the elastic element to release the latching state and directly remove the cup lid. When it is necessary to close the cup lid onto the centrifuge hanging cup, simply press the elastic element first to insert the two ends of the strip buckle between the cup lid and the centrifuge hanging cup, and then release the press to allow the elastic element to return to its reset state, so that the cup lid and the centrifuge hanging cup remain latched. This replaces the threaded connection between the cup lid and the centrifuge hanging cup, simplifies the operation process of opening and closing the cup lid, makes the operation more convenient for the staff, and improves work efficiency.

[0020] 3. By setting the snap-fit ​​groove to be annular and extending along the inner wall of the centrifugal hanging cup, the processing difficulty is reduced, so that the cup lid can be quickly opened and closed with one hand without aligning the direction when installing the protrusion. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a structural diagram of the present utility model;

[0023] Figure 2 This is a top view of the present invention;

[0024] Figure 3 In this utility model Figure 2 Sectional view of AA;

[0025] Figure 4 This is a structural diagram of the strip buckle in this utility model.

[0026] The attached diagram shows the markings and corresponding component names:

[0027] 1. Strip buckle, 11. Guide part, 12. Protrusion, 2. Cup lid, 3. Pressing part, 4. Elastic part, 5. Stop part, 6. Buckle groove, 7. Sealing strip, 8. Centrifugal hanging cup. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0029] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0031] The terms "first," "second," etc., used in this utility model are merely for clarity of description and are not intended to limit any order or emphasize importance. Furthermore, the term "connection" as used herein, unless otherwise specified, can refer to a direct connection or an indirect connection via other components.

[0032] Example

[0033] like Figures 1-4 As shown, this embodiment provides a quick-locking structure for the sealing cap of a centrifuge hanging cup 8, including a strip-shaped buckle 1 and at least two elastic elements 4. The two ends of the strip-shaped buckle 1 can be respectively engaged between the centrifuge hanging cup 8 and the cup cap 2. The two elastic elements 4 are respectively connected to the two ends of the strip-shaped buckle 1. One end of each elastic element 4 is connected to the strip-shaped buckle 1, and the other end abuts against the cup cap 2. When the elastic element 4 is compressed, the cup cap 2 is released from the centrifuge hanging cup 8. When the elastic element 4 is in its reset state, the cup cap 2 remains engaged with the centrifuge hanging cup 8. When the centrifuge hanging cup 8 generates centrifugal force, the reset force of the elastic element 4 ensures that the cup cap 2 remains engaged with the centrifuge hanging cup 8, achieving a reliable and safe seal for the centrifuged sample.

[0034] See Figure 3 and Figure 4 The strip buckle 1 has protrusions 12 at both ends. The strip buckle 1 extends across the outer top of the cup lid 2, and the protrusions 12 at both ends engage with the inner top of the corresponding centrifugal hanging cup 8. By extending the strip buckle 1 across the outer top of the cup lid 2, the combined action of the pulling force of the top of the cup lid 2 on both ends of the strip buckle 1 and the restoring force of the elastic element 4 can improve the engagement stability between the protrusions 12 and the inner top of the centrifugal hanging cup 8.

[0035] See Figure 3The centrifugal hanging cup 8 has a snap-fit ​​groove 6 on its top inner side, and the protrusion 12 can be snapped into the snap-fit ​​groove 6. The snap-fit ​​groove 6 is annular and extends along the inner wall of the centrifugal hanging cup 8. By setting the snap-fit ​​groove 6 to be annular and extending along the inner wall of the centrifugal hanging cup 8, the processing difficulty is reduced, so that the protrusion 12 can be installed without alignment, and the sealing cup lid 2 can be quickly opened and closed with one hand from 360 degrees.

[0036] See Figure 3 A stop 5 is provided on the inner top side of the centrifugal hanging cup 8. When the cup lid 2 and the centrifugal hanging cup 8 are closed, the stop 5 abuts against the top of the protrusion 12. By providing the stop 5 on the inner top side of the centrifugal hanging cup 8 to abut against the protrusion 12, the locking effect is improved.

[0037] See Figure 3 The bottom outer side of the cup lid 2 is provided with a recessed platform, which can be located inside the centrifugal hanging cup 8. When the cup lid 2 and the centrifugal hanging cup 8 are closed, the lower end of the protrusion 12 abuts against the recessed platform. By setting the recessed platform to abut against the bottom of the protrusion 12, and cooperating with the stop part 5 to abut against the top of the protrusion 12, the locking effect of the protrusion 12 is increased.

[0038] See Figure 3 Both elastic elements 4 are connected to the inner side of the strip buckle 1 and located at the upper end of the corresponding protrusion 12. By setting both elastic elements 4 at the upper end of the protrusion 12, the restoring force of the elastic elements 4 can be directly applied to the protrusion 12 to ensure the locking effect.

[0039] See Figure 3 and Figure 4 The strip buckle 1 has guide portions 11 at both ends, and the elastic element 4 is sleeved on the guide portions 11. There is a distance between the two ends of the strip buckle 1 and the outer side of the cup lid 2, and this distance is greater than the thickness of the protrusion 12. By providing the guide portions 11, the elastic element 4 is guided during compression and repositioning, ensuring that the repositioning force of the elastic element 4 is perpendicular to the inner side of the strip buckle 1, thus ensuring a secure engagement.

[0040] See Figure 1 and Figure 3 Specifically, the guide portion 11 is a circular column. The outer periphery of the circular column is provided with a groove for mounting the elastic element 4.

[0041] See Figures 1-4Both ends of the strip buckle 1 are provided with pressing parts 3, which are located on the outer side of the corresponding elastic element 4. By providing pressing parts 3, the operator can immediately find the position to press the elastic element 4 when opening and closing the cup lid 2, thereby improving the efficiency of opening and closing the cup lid 2.

[0042] See Figure 1 and Figure 3 The surface of the pressing part 3 is provided with several raised strips. By providing elongated raised strips on the outer surface of the pressing part 3, it is easier to increase friction with the hand and ensure the effectiveness of pressing the elastic element 4.

[0043] See Figure 3 It also includes a sealing strip. A sealing strip mounting groove is provided on the inner top side of the centrifuge cup 8. The sealing strip is located within the sealing strip mounting groove. When the cup lid 2 and the centrifuge cup 8 are closed, the sealing strip abuts against the bottom of the cup lid 2. By setting the sealing strip, reliable and safe sealing of the centrifuged sample is ensured when the cup lid 2 is closed.

[0044] See Figure 3 and Figure 4 In this invention, the elastic element 4 is a compression spring or a nitrogen spring. The sealing strip 7 is a silicone sealing strip.

[0045] See Figure 3 and Figure 4 The cup lid 1 includes an arc segment and two vertical segments. The guide portion 11 is disposed on the inner side of the corresponding vertical segment, and the protrusion 12 is disposed on the outer side of the corresponding vertical segment.

[0046] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A quick-locking structure for a centrifugal hanging cup sealing cap, characterized in that, include: A strip buckle, the two ends of which can be respectively fastened between the centrifugal hanging cup and the cup lid; At least two elastic elements are provided, each connected to one end of the band buckle. One end of each elastic element is connected to the band buckle, and the other end abuts against the cup lid. When the elastic element is compressed, the cup lid is released from the centrifugal hanging cup. When the elastic element is reset, the cup lid remains engaged with the centrifugal hanging cup.

2. The quick-locking structure for the centrifugal hanging cup sealing cap according to claim 1, characterized in that, Both ends of the strip buckle are provided with protrusions. The strip buckle spans the outer side of the top of the cup lid, and the protrusions at both ends engage with the inner side of the top of the corresponding centrifugal hanging cup.

3. The quick-locking structure for the centrifugal hanging cup sealing cap according to claim 2, characterized in that, The centrifugal hanging cup has a snap-fit ​​groove on the top inner side, and the protrusion can be snapped into the snap-fit ​​groove. The snap-fit ​​groove is annular and extends along the inner wall of the centrifugal hanging cup.

4. The quick-locking structure for the centrifugal hanging cup sealing cap according to claim 2, characterized in that, A stop is provided on the inner top of the centrifugal hanging cup. When the cup lid is closed with the centrifugal hanging cup, the stop abuts against the top of the protrusion.

5. The quick-locking structure for the centrifugal hanging cup sealing cap according to claim 4, characterized in that, A recessed platform is provided on the outer bottom of the cup lid. The recessed platform can be located inside the centrifugal hanging cup. When the cup lid is closed with the centrifugal hanging cup, the lower end of the protrusion abuts against the recessed platform.

6. The quick-locking structure for the centrifugal hanging cup sealing cap according to claim 1, characterized in that, Both elastic elements are connected to the inside of the strip buckle and located at the upper end of the corresponding protrusion.

7. The quick-locking structure for the centrifugal hanging cup sealing cap according to claim 2, characterized in that, Both ends of the strip buckle are provided with guide portions, and the elastic element is sleeved on the guide portions. There is a set distance between the two ends of the strip buckle and the outer side of the cup lid, and the set distance is greater than the thickness of the protrusion.

8. The quick-locking structure for the centrifugal hanging cup sealing cap according to claim 1, characterized in that, Both ends of the strip buckle are provided with pressing parts, which are located on the outer side of the corresponding elastic element.

9. The quick-locking structure for the centrifugal hanging cup sealing cap according to claim 8, characterized in that, The surface of the pressing part is provided with several raised strips.

10. The quick-locking structure for the centrifugal hanging cup sealing cap according to any one of claims 1-9, characterized in that, It also includes a sealing strip. A sealing strip mounting groove is provided on the inner side of the top of the centrifugal hanging cup. The sealing strip is located in the sealing strip mounting groove. When the cup lid is closed with the centrifugal hanging cup lid, the sealing strip abuts against the bottom of the cup lid.