Centrifugal machine with limiting device
By designing a slidable skateboard and sponge in a centrifuge, combined with the limiting mechanism of the elastic rope, the problem of deviation and low separation accuracy of the test tube during high-speed rotation is solved, achieving higher separation accuracy and more convenient test tube removal process.
Patent Information
- Application Number
- CN202421336326.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-06-13
AI Technical Summary
During the high-speed rotation of existing centrifuges, the test tube is prone to deflection, causing liquid to be sprayed or splashed, and the test tube fixation operation errors lead to a decrease in separation accuracy.
A centrifuge with a limiting device is designed. By setting a slidable skateboard and sponge in the rotating rod, combined with the function of the elastic rope, the limiting work on the top of the test tube is realized. By setting a rolling ball on the inner wall of the movable groove, the impurities on the sliding end of the skateboard are cleaned up to improve the sliding force.
Effectively prevent the test tube from being offset during high-speed rotation, reduce the risk of liquid spraying or splashing, improve the accuracy of test tube separation work, and simplify the process of test tube removal.
Smart Images
Figure CN222984598U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of centrifuges, and specifically relates to a centrifuge with a limiting device. Background Art
[0002] Medical centrifuges are commonly used experimental equipment in medical examinations, mainly used for separating serum, plasma, precipitating proteins or performing urine sediment examinations, etc., and mainly composed of a centrifugal rotation, a drive system and a cooling system.
[0003] When in use, a centrifuge needs to fixedly place multiple test tubes on the output shaft of the rotor, and at the same time cooperate with a high-speed rotating centrifuge head to generate a strong centrifugal force, so that different components in the mixture are separated due to differences in density, particle size or sedimentation coefficient.
[0004] Through long-term observation, although the existing centrifuge can rotate the materials to achieve separation, when the test tube is placed and fixed in the clamping mechanism, it is difficult to limit the top of the test tube, resulting in the problem that the test tube deviates during high-speed rotation, and even part of the liquid is thrown out of the test tube; therefore, a centrifuge with a limiting device is proposed for the above problems. Summary of the Utility Model
[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the utility model proposes a centrifuge with a limiting device.
[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A centrifuge with a limiting device of the utility model includes a centrifuge main body; a rotating cylinder is rotatably connected to the middle of the centrifuge main body; a rotating rod is fixedly connected to the middle of the rotating cylinder; multiple groups of clamping members are installed in the middle of the rotating rod; a vertical plate is fixedly connected to the middle of the rotating rod; multiple groups of sliding plates are slidably connected to the inner wall of the vertical plate, and the sliding plates are arranged on the top of the clamping members; a sponge is fixedly connected to the bottom of the sliding plate; two groups of first elastic ropes are fixedly connected to the side wall of the sliding plate, and the other ends of the first elastic ropes are fixedly connected to the inner wall of the vertical plate.
[0007] Preferably, a housing cover is fixedly connected to the top of the sliding plate; an activity groove is opened on the inner wall of the housing cover; a guide plate is fixedly connected to the top of the housing cover, and the middle of the guide plate is in a horn shape; multiple groups of rolling balls are arranged on the inner wall of the activity groove.
[0008] Preferably, multiple groups of vertical blocks are fixedly connected to the inner wall of the vertical plate; an elastic member is fixedly connected to the middle of the vertical block; a scraping plate is fixedly connected to the end of the elastic member, and the scraping plate is in contact with the first elastic rope.
[0009] Preferably, a second elastic rope is fixedly connected to the middle of the guide plate, and the other end of the second elastic rope is fixedly connected to the middle of the housing cover; a counterweight ball is fixedly connected to the middle of the second elastic rope.
[0010] Preferably, a plurality of groups of third elastic ropes are fixedly connected to the inner wall of the guide plate.
[0011] Preferably, a plurality of buffer plates are fixedly connected to the inner wall of the vertical plate, and the buffer plates are arranged close to the side wall of the sliding plate.
[0012] Preferably, a convex member is fixedly connected to the inner wall of the movable groove.
[0013] Advantages of the present utility model:
[0014] 1. The present utility model provides a centrifuge with a limiting device. By means of the slidable sliding plate arranged in cooperation, the top of the test tube can be limited, reducing the problem that the test tube tilts due to fixed operation errors during rotation, resulting in the liquid stored inside spraying or splashing, improving the accuracy of the separation work of the material, and the elastic first elastic rope can store the whole sliding plate, reducing the trouble when taking out the test tube.
[0015] 2. The present utility model provides a centrifuge with a limiting device. By arranging a plurality of groups of rollable balls on the inner wall of the movable groove, the problem that the sliding end of the sliding plate is difficult to slide due to being attached with a large amount of impurities and having a small rotational force due to its light material during movement can be reduced. At the same time, when the plurality of groups of balls impact the inner wall of the housing cover, the sliding end of the sliding plate can be cleaned, reducing the accumulation and attachment of a large amount of impurities, and the trumpet-shaped guide plate can facilitate the taking out or placing of the balls. Description of the Drawings
[0016] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:
[0017] Figure 1 is the three-dimensional structure schematic diagram of the present utility model;
[0018] Figure 2 is the vertical plate structure schematic diagram of the present utility model;
[0019] Figure 3 is the sliding plate structure schematic diagram of the present utility model;
[0020] Figure 4 is Figure 3 the enlarged view of part A of
[0021] Figure 5 is the housing cover structure schematic diagram of the present utility model.
[0022] Legend Explanation:
[0023] 1. Centrifuge main body; 11. Rotating drum; 12. Rotating rod; 13. Clamping member; 14. Vertical plate; 15. Slide plate; 16. Sponge; 17. First elastic rope; 2. Housing cover; 21. Activity groove; 22. Guide plate; 23. Rolling ball; 3. Vertical block; 31. Elastic member; 32. Scraper; 4. Second elastic rope; 41. Counterweight ball; 5. Third elastic rope; 6. Buffer plate; 7. Convex member. Specific embodiments
[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.
[0025] The following gives specific embodiments.
[0026] As Figures 1-4 shown, a centrifuge with a limiting device includes a centrifuge main body 1; a rotating drum 11 is rotatably connected to the middle of the centrifuge main body 1; a rotating rod 12 is fixedly connected to the middle of the rotating drum 11; a plurality of clamping members 13 are installed in the middle of the rotating rod 12; a vertical plate 14 is fixedly connected to the middle of the rotating rod 12; a plurality of slide plates 15 are slidably connected to the inner wall of the vertical plate 14, and the slide plates 15 are arranged at the top of the clamping members 13; a sponge 16 is fixedly connected to the bottom of the slide plate 15; two first elastic ropes 17 are fixedly connected to the side wall of the slide plate 15, and the other ends of the first elastic ropes 17 are fixedly connected to the inner wall of the vertical plate 14; during work, after the staff installs the centrifuge main body 1 in the working area, the flip cover in the middle of the centrifuge main body 1 can be opened, and a plurality of test tubes are sequentially placed in the middle of the clamping members 13 for fixation. Subsequently, after closing the flip cover, the rotating drum 11 drives the test tubes inside it to rotate together. By arranging the slide plate 15 in the middle of the vertical plate 14, when the rotating rod 12 rotates at a high speed, under the action of centrifugal force, a plurality of slide plates 15 can slide towards the position close to the inner wall of the rotating drum 11. At the same time, during the sliding process, the length of the middle of the first elastic rope 17 can be stretched until the slide plate 15 and the sponge 16 reach the top position of the test tube, and the top of the test tube placed inside the clamping member 13 can be limited. After the centrifuge main body 1 stops working, under the action of the elastic force of the first elastic rope 17, the slide plate 15 can be reset again. This step, combined with the set slidable slide plate 15, can limit the top of the test tube, reduce the inclination of the test tube during rotation due to incorrect fixing operations, and prevent the liquid stored inside it from spraying or splashing, improving the accuracy of the separation work of the material. The elastic first elastic rope 17 can store the whole slide plate 15, reducing the trouble when taking out the test tube.
[0027] As Figure 2 and 5 shown, a housing 2 is fixedly connected to the top of the skateboard 15; a movable groove 21 is provided on the inner wall of the housing 2; a guide plate 22 is fixedly connected to the top of the housing 2, and the middle part of the guide plate 22 is arranged in a horn shape; a plurality of rolling balls 23 are arranged on the inner wall of the movable groove 21; during operation, by arranging the housing 2 on the top of the skateboard 15, then the staff can transfer a plurality of rolling balls 23 into the movable groove 21 through the guide plate 22 in sequence and make contact with its side wall. When the skateboard 15 moves outward under the action of centrifugal force, the plurality of rolling balls 23 will roll inside the movable groove 21, knock on the inner wall of the movable groove 21 and push it. This step arranges a plurality of rollable rolling balls 23 on the inner wall of the movable groove 21, which can reduce the problem that the sliding end of the skateboard 15 is attached with more impurities, so that when moving, due to its light material, the rotation force is small and it is difficult to slide. At the same time, when the plurality of rolling balls 23 impact the inner wall of the housing 2, the sliding end of the skateboard 15 can be cleaned, reducing the accumulation and adhesion of more impurities. The horn-shaped guide plate 22 can facilitate the removal or placement of the rolling balls 23.
[0028] As Figure 4 shown, a plurality of upright blocks 3 are fixedly connected to the inner wall of the upright plate 14; an elastic member 31 is fixedly connected to the middle of the upright block 3; a scraping plate 32 is fixedly connected to the end of the elastic member 31, and the scraping plate 32 is in contact with the first elastic rope 17; during operation, by arranging the upright blocks 3 on the inner wall of the upright plate 14, when the first elastic rope 17 is pulled outwards, the elastic force generated by the elastic member 31 can make the scraping plate 32 deeply contact with the first elastic rope 17 and scrape its surface at the same time. This step is provided with the scraping plate 32, which can reduce the accumulation and adhesion of part of the dust in the middle of the first elastic rope 17, and at the same time can reduce the problem of the fast aging speed of the first elastic rope 17, and reduce the problem of trouble in cleaning due to more impurities following the first elastic rope 17 into the inner wall of the upright plate 14.
[0029] As Figure 5 shown, a second elastic rope 4 is fixedly connected to the middle of the guide plate 22, and the other end of the second elastic rope 4 is fixedly connected to the middle of the housing 2; a counterweight ball 41 is fixedly connected to the middle of the second elastic rope 4; during operation, by arranging the second elastic rope 4 in the middle of the guide plate 22, when the counterweight ball 41 swings, it will pull the middle of the second elastic rope 4 to deform and impact on the side wall of the housing 2 at the same time. This step, combined with the force generated after the impact of the arranged counterweight ball 41, can make the adhered rolling balls 23 separate again and impact the inner wall of the movable groove 21 in sequence, improving the flexibility of the skateboard 15 when sliding.
[0030] As Figure 5As shown, a plurality of groups of third elastic ropes 5 are fixedly connected to the inner wall of the guide plate 22. During operation, by arranging a plurality of groups of third elastic ropes 5 on the inner wall of the guide plate 22, when the rolling ball 23 needs to be placed or taken out, the third elastic ropes 5 can be pulled to deform the middle part thereof. At the same time, when the rolling ball 23 is taken out, two adjacent third elastic ropes 5 can block the rolling ball 23. This step in cooperation with the arranged third elastic ropes 5 can reduce the problem that the rolling ball 23 is thrown out during operation, and at the same time can reduce the problem that the rolling ball 23 drops again because the surface of the rolling ball 23 is relatively smooth when the rolling ball 23 is taken out.
[0031] As Figure 2 shown, a plurality of groups of buffer plates 6 are fixedly connected to the inner wall of the vertical plate 14, and the buffer plates 6 are arranged close to the side wall of the sliding plate 15. During operation, by arranging the buffer plates 6 on the side wall of the vertical plate 14, when the sliding plate 15 slides in the opposite direction under the action of the first elastic rope 17, the side wall of the sliding plate 15 will directly contact the middle part of the buffer plate 6. This step in cooperation with the buffer plate 6 made of soft material can reduce the problem that the reset speed of the sliding plate 15 is too fast and it frequently impacts on the inner wall of the sponge 16, resulting in chipping damage at the end of the sliding plate 15.
[0032] As Figure 5 shown, a convex member 7 is fixedly connected to the inner wall of the movable groove 21. During operation, by arranging the convex member 7 on the inner wall of the movable groove 21, when the rolling ball 23 approaches the inner wall of the movable groove 21, it will directly contact the convex member 7, and under the action of its uneven plane, it will vibrate frequently. This step in cooperation with the arranged convex member 7 can make the rolling ball 23 vibrate as a whole to clean the attached impurities, and at the same time can reduce the wear and damage caused by directly contacting the movable groove 21.
[0033] Working principle: After installing the centrifuge main body 1 in the working area, the flip cover in the middle of the centrifuge main body 1 can be opened, and multiple test tubes can be sequentially placed and fixed in the middle of the clamping member 13. Then, after closing the flip cover, the rotating cylinder 11 drives the test tubes inside it to rotate together. By arranging a sliding plate 15 in the middle of the vertical plate 14, when the rotating rod 12 rotates at a high speed, under the action of centrifugal force, multiple sliding plates 15 can slide towards the inner wall of the rotating cylinder 11. At the same time, during the sliding process, the length of the middle part of the first elastic rope 17 can be stretched until the sliding plate 15 and the sponge 16 reach the top position of the test tube, and the top of the test tube placed inside the clamping member 13 can be limited. After the centrifuge main body 1 stops working, under the action of the elastic force of the first elastic rope 17, the sliding plate 15 can be reset again. By arranging a shell cover 2 on the top of the sliding plate 15, then the staff can sequentially transfer multiple groups of balls 23 to the inside of the movable groove 21 through the guide plate 22 and make contact with its side wall for work. When the sliding plate 15 moves outward under the action of centrifugal force, multiple groups of balls 23 will roll inside the movable groove 21, knock on the inner wall of the movable groove 21 and push it. By arranging a vertical block 3 on the inner wall of the vertical plate 14, when the first elastic rope 17 is pulled outwards, the elastic force generated by the elastic member 31 can make the scraping plate 32 come into deep contact with the first elastic rope 17 and scrape its surface at the same time. By arranging a second elastic rope 4 in the middle of the guide plate 22, when the counterweight ball 41 swings, it will pull the middle part of the second elastic rope 4 to deform and hit the side wall of the shell cover 2 at the same time. By arranging multiple groups of third elastic ropes 5 on the inner wall of the guide plate 22, when the balls 23 need to be placed or taken out, the third elastic ropes 5 can be pulled to deform their middle parts. At the same time, when the balls 23 are taken out, two adjacent third elastic ropes 5 can block the balls 23. By arranging a buffer plate 6 on the side wall of the vertical plate 14, when the sliding plate 15 slides in the opposite direction under the action of the first elastic rope 17, the side wall of the sliding plate 15 will directly contact the middle of the buffer plate 6. By arranging a convex member 7 on the inner wall of the movable groove 21, when the balls 23 approach the inner wall of the movable groove 21, they will directly contact the convex member 7 and, under the action of its uneven plane, perform frequent shaking work.
[0034] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.
Claims
1. A centrifuge with a limiting device, comprising a centrifuge body (1); a drum (11) is rotatably connected to the middle of the centrifuge body (1); characterized in that: A rotating rod (12) is fixedly connected to the middle of the rotating drum (11); a plurality of groups of clamping members (13) are installed in the middle of the rotating rod (12); a vertical plate (14) is fixedly connected to the middle of the rotating rod (12); a plurality of groups of slide plates (15) are slidably connected to the inner wall of the vertical plate (14), and the slide plates (15) are arranged on the top of the clamping members (13); a sponge (16) is fixedly connected to the bottom of the slide plates (15); two groups of first elastic ropes (17) are fixedly connected to the side walls of the slide plates (15), and the other ends of the first elastic ropes (17) are fixedly connected to the inner wall of the vertical plate (14).
2. A centrifuge with a limiting device as claimed in claim 1, characterized in that: The top of the slide plate (15) is fixedly connected to a shell cover (2); the inner wall of the shell cover (2) is provided with a movable groove (21); the top of the shell cover (2) is fixedly connected to a guide plate (22), and the middle part of the guide plate (22) is arranged in a trumpet shape; the inner wall of the movable groove (21) is provided with a plurality of groups of rolling balls (23).
3. A centrifuge with a limiting device as claimed in claim 1, characterized in that: The inner wall of the vertical plate (14) is fixedly connected to a plurality of vertical blocks (3); the middle of the vertical block (3) is fixedly connected to an elastic member (31); the end of the elastic member (31) is fixedly connected to a scraper (32), and the scraper (32) is arranged in contact with the first elastic rope (17).
4. A centrifuge with a limiting device as claimed in claim 2, characterized in that: A second elastic rope (4) is fixedly connected to the middle of the guide plate (22), and the other end of the second elastic rope (4) is fixedly connected to the middle of the shell cover (2); a counterweight ball (41) is fixedly connected to the middle of the second elastic rope (4).
5. A centrifuge with a limiting device as claimed in claim 2, characterized in that: The inner wall of the guide plate (22) is fixedly connected with a plurality of groups of third elastic ropes (5).
6. A centrifuge with a limiting device as claimed in claim 1, characterized in that: A plurality of groups of buffer plates (6) are fixedly connected to the inner wall of the vertical plate (14), and the buffer plates (6) are arranged close to the side walls of the sliding plate (15).
7. A centrifuge with a limiting device as claimed in claim 2, characterized in that: A protruding piece (7) is fixedly connected to the inner wall of the movable groove (21).