Fixing clamp for liquid bag centrifugation
By designing a fixing fixture for centrifugal of liquid bags and using magnets, bolts or springs to fix components such as magnets, bolts or springs, the problem of breaking of liquid bags during centrifugation is solved, and the stable fixation of liquid bags and preventing scratches are achieved.
Patent Information
- Application Number
- CN202422325430.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-23
AI Technical Summary
In the prior art, liquid bags are easily torn and damaged during centrifugation, resulting in liquid flow out.
Design a fixing fixture for centrifugal liquid bags, including the base plate and the cover plate, connected by hinges, and fixing components such as magnets, bolts or springs are provided to ensure that the liquid bags are fixed in the cavity and prevent tearing.
Effectively prevent the liquid bag from rupturing during centrifugation, ensuring that the liquid bag does not move or is scratched during centrifugation.
Smart Images
Figure CN223128097U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of laboratory instruments, and particularly to a fixing jig for centrifuging liquid bags. Background Art
[0002] Referring to Figure 1 , a liquid bag in the prior art includes a bag body, a first tube disposed on one side of the bag body, and a second tube disposed on the same side as the first tube.
[0003] During the experiment, it is necessary to separate the solids and liquids in the bag body, and the bag body needs to be centrifuged. The existing method is to directly connect and fix the bag body to the centrifuge, and then centrifuge the liquid bag.
[0004] Through the existing operation method, during the centrifugation of the liquid bag, the liquid bag will be torn and damaged due to the centrifugal force, resulting in the liquid in the bag body flowing out. Utility Model Content
[0005] In order to improve the problem that the liquid bag will be damaged due to the centrifugal force during centrifugation, this application provides a fixing jig for centrifuging liquid bags.
[0006] The fixing jig for centrifuging liquid bags provided by this application adopts the following technical solutions:
[0007] A fixing jig for centrifuging liquid bags includes a bottom plate and a cover plate connected to one side of the bottom plate. The bottom plate and the cover plate are connected by a hinge. A first hole is opened on the cover plate, and a second hole matching the first hole is opened on the bottom plate. A cavity for placing the liquid bag is formed between the first hole and the second hole. A fixing component is arranged between the cover plate and the bottom plate, and the fixing component is used to limit the rotation of the cover plate.
[0008] By adopting the above technical solutions, when centrifuging the liquid bag, place the liquid bag in the cavity, fix the liquid bag in the cavity through the fixing component, and fix the bottom plate to the centrifuge, then the centrifugation of the liquid bag can be started. Due to the limitation of the bottom plate and the cover plate, the liquid bag itself is difficult to be torn, thereby reducing the problem that the liquid bag is broken due to the centrifugal force during centrifugation.
[0009] Optionally, the fixing component includes a first magnet arranged at the edge of the cover plate and a second magnet arranged at the edge of the bottom plate, and the first magnet and the second magnet are attracted to each other.
[0010] By adopting the above technical solutions, after the liquid bag is placed in the cavity, flip the cover plate so that the cover plate and the bottom plate are attached, thereby the first magnet and the second magnet are attracted to each other, realizing the fixation of the liquid bag on the bottom plate, and preventing the liquid bag from being broken due to the centrifugal force during the centrifugation of the liquid bag.
[0011] Optionally, the fixing component is a bolt. A third hole is provided at the edge of the bottom plate, and a fourth hole matching the third hole is provided at the edge of the cover plate. The bolt passes through the third hole and the fourth hole, and the bolt is threadedly connected in the third hole and the fourth hole.
[0012] By adopting the above technical solution, after the liquid bag is placed in the cavity, the bolt passes through the third hole and the fourth hole, and the cover plate and the bottom plate are threadedly connected by the bolt, so that the fixing clamp for centrifuging the liquid bag clamps the liquid bag during centrifugation.
[0013] Optionally, the fixing component includes a connecting rod rotatably connected to both sides of the bottom plate, a fixing block slidable on the connecting rod, and a spring sleeved outside the connecting rod. One end of the spring is fixed on the fixing block, and the other end of the spring is fixed on the fixing block.
[0014] By adopting the above technical solution, after the liquid bag is placed in the cavity, the spring presses the fixing block against the cover plate, so that the cover plate presses against the bottom plate.
[0015] Optionally, a rubber protrusion is provided on the side of the fixing block close to the bottom plate.
[0016] By adopting the above technical solution, when the fixing block contacts the side wall of the cover plate, the friction between the fixing block and the cover plate is increased, so that the fixing block locks the cover plate more stably.
[0017] Optionally, a positioning protrusion is provided at one end of the bottom plate close to the rotation axis of the cover plate, and a positioning groove matching the positioning protrusion is provided on the cover plate. The positioning protrusion can be embedded in the positioning groove, and the positioning protrusion is used to position the position of the liquid bag.
[0018] By adopting the above technical solution, after the liquid bag is placed in the cavity, one side of the edge of the liquid bag is abutted against the positioning protrusion to ensure that the liquid bag is placed in the correct position and prevent the liquid bag from shifting during centrifugation.
[0019] Optionally, first chamfers are provided at the corners of the cover plate, and second chamfers are provided at the corners of the bottom plate.
[0020] By adopting the above technical solution, it is prevented that the operator is scratched by the edge parts of the cover plate and the bottom plate during the process of installing the liquid bag, and it is prevented that the sharp parts of the cover plate and the bottom plate cut the liquid bag.
[0021] Optionally, a first rubber pad is provided at the edge of the cover plate, and a second rubber pad is provided at the edge of the bottom plate.
[0022] By adopting the above technical solution, after the liquid bag is placed in the cavity, the first rubber pad and the second rubber pad increase the friction force between the entire fixture and the liquid bag, preventing the liquid bag from shifting during centrifugation and also preventing the liquid bag from being pinched and broken by the cover plate and the bottom plate during centrifugation.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. Prevent the liquid bag from bursting due to centrifugal force during centrifugation;
[0025] 2. The chamfer is opened to prevent the sharp parts of the cover plate and the bottom plate from scratching the liquid bag. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0027] Figure 1 is a schematic diagram of a liquid bag in the prior art.
[0028] Figure 2 is a schematic diagram of the overall structure of Embodiment 1.
[0029] Figure 3 is a side view of the overall structure of Embodiment 1, mainly used to show the positioning protrusion.
[0030] Figure 4 is a schematic diagram of the fixing component in Embodiment 1, mainly used to show the first magnet and the second magnet.
[0031] Figure 5 is a schematic diagram of the fixing component in Embodiment 2.
[0032] Figure 6 is a schematic diagram of the fixing component in Embodiment 3.
[0033] Figure 7 is a partial schematic diagram of the fixing component in Embodiment 3, mainly used to show the rubber protrusion.
[0034] Reference numerals: 1, bottom plate; 2, cover plate; 3, first hole; 4, second hole; 5, cavity; 6, first magnet; 7, second magnet; 8, bolt; 9, third hole; 10, fourth hole; 11, connecting rod; 12, fixing block; 13, spring; 14, rubber protrusion; 15, positioning protrusion; 16, positioning groove; 17, first chamfer; 18, second chamfer; 19, first rubber pad; 20, second rubber pad; 21, bag body; 22, first tube; 23, second tube. Detailed implementation manners
[0035] The following further elaborates on this application in conjunction with the attached Figures 1-7 drawings.
[0036] Referring to Figure 1 , in the prior art, a liquid bag includes a bag body 21, a first tube 22 provided on one side of the liquid bag, and a second tube 23 provided on the liquid bag and on the same side as the first tube 22.
[0037] Embodiment 1
[0038] The embodiment of this application discloses a fixing fixture for centrifuging a liquid bag.
[0039] Referring to Figure 1 , a fixing fixture for centrifuging a liquid bag includes a bottom plate 1 and a cover plate 2. A hinge is provided between the bottom plate 1 and the cover plate 2. The cover plate 2 is rotatably connected to the bottom plate 1 through the hinge. A first hole 3 is provided on the cover plate 2, and a second hole 4 that cooperates with the first hole 3 is provided on the bottom plate 1. A cavity 5 is formed between the first hole 3 and the second hole 4, and the cavity 5 is used to place the liquid bag.
[0040] Referring to Figure 2 , first chamfers 17 are provided at the corners of the bottom plate 1, so that the edges of the bottom plate 1 are arc-shaped. Second chamfers 18 are provided at the edges of the cover plate 2, making the edges of the cover plate 2 arc-shaped. When placing the liquid bag into the fixing fixture for centrifuging the liquid bag, the arc-shaped edges prevent the liquid bag from being scratched and also prevent the operator from being scratched by the sharp edges of the cover plate 2 and the bottom plate 1 when using the fixing fixture for centrifuging the liquid bag.
[0041] Referring to Figure 2 , at the same time, in order to further reduce the phenomenon that the liquid bag is easily damaged by pressing during the clamping process, in this embodiment, a first rubber pad 19 is laid on the side of the cover plate 2 facing the bottom plate 1, and a second rubber pad 20 is laid on the side of the bottom plate 1 facing the cover plate 2.
[0042] Referring to Figure 3, a positioning protrusion 15 is provided at one end of the bottom plate 1 close to the rotating shaft of the cover plate 2, and a positioning groove 16 is provided on the cover plate 2. When the cover plate 2 is covered on the bottom plate 1, the positioning protrusion 15 is embedded in the positioning groove 16. When placing the liquid bag in the fixing fixture for centrifuging the liquid bag, the liquid bag abuts against the positioning protrusion 15, so that the liquid bag is placed at a predetermined position and it is difficult to generate an offset during the process of clamping the liquid bag.
[0043] Refer to Figure 4 , a fixing component is provided between the cover plate 2 and the bottom plate 1. The fixing component includes a first magnet 6 and a second magnet 7. The first magnet 6 is fixed on the edge of the cover plate 2, and the second magnet 7 is fixed on the edge of the bottom plate 1. The first magnet 6 and the second magnet 7 can be attracted to each other. The cover plate 2 and the bottom plate 1 are adsorbed through the first magnet 6 and the second magnet 7, so that it is difficult for the cover plate 2 to rotate. When centrifuging the liquid bag, the liquid bag is placed in the cavity 5, and the cover plate 2 is adsorbed on the bottom plate 1 to restrict the liquid bag from being difficult to separate from the bottom plate 1.
[0044] The implementation principle of the fixing fixture for centrifuging the liquid bag in the embodiment of the present application is: put the liquid bag on the bottom plate 1, adjust the position of the liquid bag to abut against the positioning protrusion 15, cover the cover plate 2 on the bottom plate 1, so that the liquid in the liquid bag is located in the cavity 5, adsorb the cover plate 2 and the bottom plate 1 through the first magnet 6 and the second magnet 7, and fix the fixing fixture for centrifuging the liquid bag to the centrifuge, then the liquid bag can be centrifuged. The setting of the fixing fixture for centrifuging the liquid bag prevents the liquid bag from bursting due to centrifugal force during centrifugation.
[0045] Embodiment 2
[0046] Compared with Embodiment 1, the difference in Embodiment 2 of the present application is that: another implementation manner of the fixing member is provided.
[0047] Refer to Figure 5 , the fixing component is a bolt 8. A third hole 9 is opened at the edge of the bottom plate 1, and a fourth hole 10 is opened at the edge of the cover plate 2. The third hole 9 and the fourth hole 10 are used in cooperation. The bolt 8 passes through the third hole 9 and the fourth hole 10, and the bolt 8 is threadedly connected in the third hole 9 and the fourth hole 10.
[0048] The implementation principle of the fixing fixture for centrifuging the liquid bag in the embodiment of the present application is: put the liquid bag on the bottom plate 1, adjust the position of the liquid bag to abut against the positioning protrusion 15, cover the cover plate 2 on the bottom plate 1, so that the liquid in the liquid bag is located in the cavity 5, threadedly connect the bolt 8 to the third hole 9 and the fourth hole 10 to lock the cover plate 2 on the bottom plate 1, and fix the fixing fixture for centrifuging the liquid bag to the centrifuge, then the liquid bag can be centrifuged.
[0049] Embodiment 3
[0050] In Example 3 of this application, compared with Example 1, the difference lies in that another implementation of the fixing member is provided.
[0051] Referring to Figure 6 and Figure 7 , in order to install the fixing component more conveniently, installation grooves for installing the fixing component are provided on the edges of the bottom plate 1 and the cover plate 2. The fixing component includes a connecting rod 11, a fixing block 12 and a spring 13. The connecting rod 11 is connected to the side wall of the bottom plate 1 by a hinge. The fixing block 12 slides on the outside of the connecting rod 11. One end of the spring 13 is fixed to the fixing block 12, and the other end of the spring 13 is fixed to the end of the connecting rod 11 away from the bottom plate 1.
[0052] Referring to Figure 7 , in order to improve the stability of the contact between the fixing block 12 and the cover plate 2, a rubber protrusion 14 is further provided on the side of the fixing block 12 close to the bottom plate 1.
[0053] The implementation principle of a fixing jig for centrifuging a liquid bag in an embodiment of this application is as follows: Place the liquid bag on the bottom plate 1, press the liquid bag against the positioning protrusion 15, cover the cover plate 2 on the bottom plate 1 so that the liquid in the liquid bag is located in the cavity 5, press the fixing blocks 12 on both sides onto the cover plate 2. In the initial state, the spring 13 presses the fixing block 12 tightly in the direction close to the bottom plate 1, and the rotation of the cover plate 2 is restricted by the fixing block 12 and the spring 13. The rubber protrusion 14 on the fixing block 12 makes the fixing block 12 fix the cover plate 2 more stably. Fix the fixing jig for centrifuging the liquid bag to the centrifuge, and then the liquid bag can be centrifuged.
[0054] Unless otherwise defined, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "a" or "one" do not indicate a quantity limitation, but indicate that there is at least one. The terms such as "including" or "comprising" mean that the elements or objects appearing before "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. The terms such as "upper", "lower", "left", "right" are only used to indicate the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.
[0055] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.
Claims
1. A fixing fixture for centrifuging a liquid bag, comprising a bottom plate (1) and a cover plate (2) connected to one side of the bottom plate (1), wherein the bottom plate (1) and the cover plate (2) are connected by a hinge, and it is characterized in that: A first hole (3) is formed in the cover plate (2), a second hole (4) matching with the first hole (3) is formed in the bottom plate (1), a cavity (5) for placing a liquid bag is formed between the first hole (3) and the second hole (4), and a fixing component is arranged between the cover plate (2) and the bottom plate (1) for restricting the rotation of the cover plate (2).
2. The fixed fixture for centrifuging a liquid bag according to claim 1, characterized in that: The fixing component includes a first magnet (6) arranged at the edge of the cover plate (2) and a second magnet (7) arranged at the edge of the bottom plate (1), and the first magnet (6) is attracted to the second magnet (7).
3. The fixed fixture for centrifuging a liquid bag according to claim 1, characterized in that: The fixing component is a bolt (8), a third hole (9) is formed at the edge of the bottom plate (1), a fourth hole (10) matching with the third hole (9) is formed at the edge of the cover plate (2), the bolt (8) passes through the third hole (9) and the fourth hole (10), and the bolt (8) is threadedly connected in the third hole (9) and the fourth hole (10).
4. A fixing jig for centrifuging a liquid bag according to claim 1, characterized in that: The fixing component includes a connecting rod (11) rotatably connected to both sides of the bottom plate (1), a fixing block (12) slidably arranged on the connecting rod (11), and a spring (13) sleeved outside the connecting rod (11), one end of the spring (13) is fixed on the fixing block (12), and the other end of the spring (13) is fixed on the fixing block (12).
5. The fixed fixture for centrifuging a liquid bag according to claim 4, characterized in that: A rubber protrusion (14) is arranged on one side of the fixing block (12) close to the bottom plate (1).
6. A fixing jig for centrifuging a liquid bag according to claim 1, characterized in that: A positioning protrusion (15) is arranged at one end of the bottom plate (1) close to the rotation axis of the cover plate (2), a positioning groove (16) matching with the positioning protrusion (15) is arranged on the cover plate (2), the positioning protrusion (15) can be embedded in the positioning groove (16), and the positioning protrusion (15) is used for positioning the position of the liquid bag.
7. A fixing jig for centrifuging a liquid bag according to claim 1, characterized in that: First chamfers (17) are formed at the corners of the cover plate (2), and second chamfers (18) are formed at the corners of the bottom plate (1).
8. A fixing jig for centrifuging a liquid bag according to claim 1, characterized in that: A first rubber pad (19) is arranged at the edge of the cover plate (2), and a second rubber pad (20) is arranged at the edge of the bottom plate (1).