A type of centrifuge tank for separating liquids

Abstract

This utility model relates to the field of experimental equipment technology, specifically a liquid-separating centrifuge tank, including a centrifuge tank body. A separating component is provided inside the centrifuge tank body. The separating component includes a cap threaded to the top of the centrifuge tank body, a lifting sleeve that movably passes through the inside of the cap, and an inner tank body fixedly connected to the inner wall of the top of the cap. A first retaining ring is fixedly sleeved on the inner ring surface of the lifting sleeve, and a piston abuts against the bottom of the first retaining ring. The outer wall of the piston is slidably connected to the inner wall of the lifting sleeve, and a spring abuts against the bottom of the piston. The other end of the spring abuts against a second retaining ring. The beneficial effect of this device is that, through the separating component, after liquid separation, the elastic band expands to eliminate the gap with the inner wall of the inner tank, thereby separating the upper and lower layers of liquid. This avoids the situation where the lower layer of liquid is accidentally aspirated due to the formation of eddies caused by the use of a drain pipe, thus improving the effectiveness and accuracy of the separation.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, specifically a liquid-dispensing centrifuge tank. Background Technology

[0002] Centrifuge tanks / bottles are key containers used for centrifugal separation in laboratories, and their design and technical parameters directly affect the separation effect.

[0003] In two-phase extraction experiments, when the upper liquid is poured out, the lower liquid is often poured out as well, resulting in incomplete separation. Therefore, a drain tube is used to aspirate the liquid. However, when using a drain tube, eddies are easily formed, which directly draw up the lower liquid and mix it with the upper liquid, thus affecting subsequent experiments. To address this, we propose a separation centrifuge. Utility Model Content

[0004] The purpose of this invention is to provide a liquid-dispensing centrifuge tank to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a centrifuge tank for liquid separation, comprising a centrifuge tank body, wherein a separating component is provided inside the centrifuge tank body, the separating component includes a cap threadedly connected to the top of the centrifuge tank body, a lifting sleeve movably passing through the inside of the cap, an inner tank body fixedly connected to the inner wall of the top of the cap, a first retaining ring fixedly sleeved on the inner ring surface of the lifting sleeve, a piston abutting at the bottom of the first retaining ring, the outer wall of the piston slidably connected to the inner wall of the lifting sleeve, and a spring abutting at the bottom of the piston, the other end of the spring abutting at a second retaining ring, the outer wall of the second retaining ring fixedly connected to the inner edge of the bottom of the lifting sleeve, an upper partition plate fixedly connected to the bottom of the upper partition plate, a connecting column fixedly connected to the bottom of the upper partition plate, a lower partition plate fixedly connected to the bottom of the connecting column, an elastic band fixedly connected to the outer edges of the upper and lower partition plates, and an adjusting component provided inside the lifting sleeve.

[0006] Preferably, the adjusting assembly includes a threaded rod threaded inside the lifting sleeve, an adjusting knob fixedly connected to the top of the threaded rod, and a stop rod fixedly connected to the bottom of the threaded rod, the bottom of the stop rod rotating with the threaded rod to push against the piston.

[0007] Preferably, a compression cavity is formed within the lifting sleeve between the bottom of the first retaining ring and the top of the second retaining ring, and a hollow cavity is formed between the bottom of the upper partition and the top of the lower partition.

[0008] Preferably, the groove formed in the second retaining ring constitutes a connecting groove connecting the upper partition and the hollow cavity, and the compression cavity and the hollow cavity are filled with hydraulic oil.

[0009] Preferably, an anti-slip button is fixedly fitted onto the outer edge of the top of the lifting sleeve, the inner barrel is located inside the centrifuge barrel body, and both the inner barrel and the centrifuge barrel body are transparent.

[0010] Preferably, there is a gap between the elastic band and the inner wall of the inner barrel, and the elastic band abuts against the inner wall of the inner barrel after it expands under force.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By using a separator component, after liquid separation, the elastic band expands to eliminate the gap between itself and the inner wall of the inner tank, thereby separating the upper and lower layers of liquid. This avoids the situation where the lower layer of liquid is accidentally sucked in due to the formation of eddies caused by the suction method using a drain pipe, thus improving the effectiveness and accuracy of the separation.

[0013] The movable lifting sleeve allows the separating component to be adjusted to the position of the layer interface as needed, thereby avoiding the problem of inaccurate separation caused by the layer interface not being fixed due to different solution ratios or injection volumes. The freely adjustable lifting sleeve can avoid this situation, thus improving the flexibility and practicality of use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an exploded view of the lifting sleeve and threaded rod of this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 For the present utility model Figure 3 A magnified structural diagram of point A in the middle.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Centrifuge tank body; 2. Cover; 3. Inner tank; 4. Lifting sleeve; 5. Anti-slip button; 6. Threaded rod; 7. Adjusting button; 8. Push rod; 9. First retaining ring; 10. Piston; 11. Spring; 12. Second retaining ring; 13. Compression chamber; 14. Upper partition; 15. Elastic band; 16. Hollow cavity; 17. Connecting groove; 18. Connecting column; 19. Lower partition. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides a technical solution: such as Figures 1-4 The centrifuge tank shown includes a centrifuge tank body 1. A separating assembly is provided inside the centrifuge tank body 1. The separating assembly includes a cap 2 threadedly connected to the top of the centrifuge tank body 1. A lifting sleeve 4 movably passes through the inside of the cap 2. The cap 2 and the lifting sleeve 4 are connected in a movable seal by a sealing ring. An inner tank body 3 is fixedly connected to the inner wall of the top of the cap 2. A first retaining ring 9 is fixedly sleeved on the inner ring surface of the lifting sleeve 4. The bottom of the first retaining ring 9 abuts against a piston 10. The outer wall of the piston 10 is slidably connected to the lifting sleeve 4. On the inner wall of the lifting sleeve 4, and at the bottom of the piston 10, a spring 11 is abutted. The other end of the spring 11 abuts against a second retaining ring 12. The outer wall of the second retaining ring 12 is fixedly connected to the inner edge of the bottom of the lifting sleeve 4. An upper partition 14 is fixedly connected to the bottom of the outer wall of the lifting sleeve 4. A connecting post 18 is fixedly connected to the bottom of the upper partition 14. A lower partition 19 is fixedly connected to the bottom of the connecting post 18. An elastic band 15 is fixedly connected to the outer edges of the upper partition 14 and the lower partition 19. An adjustment assembly is provided inside the lifting sleeve 4.

[0022] like Figures 2-4 As shown, the adjusting assembly includes a threaded rod 6 threaded inside the lifting sleeve 4. An adjusting knob 7 is fixedly connected to the top of the threaded rod 6, and a stop rod 8 is fixedly connected to the bottom of the threaded rod 6. The bottom of the stop rod 8 rotates with the threaded rod 6 to push against the piston 10.

[0023] like Figures 1-4As shown, a compression chamber 13 is formed between the bottom of the first retaining ring 9 and the top of the second retaining ring 12 within the lifting sleeve 4. A hollow cavity 16 is formed between the bottom of the upper partition 14 and the top of the lower partition 19. In use, liquid is injected into the centrifuge body 1, and then the top of the centrifuge body 1 is sealed with the cap 2. Then, the centrifuge body 1 is repeatedly turned over to expel the air remaining at the bottom of the lower partition 19. Then, the centrifuge body 1 is placed in the centrifuge for layer separation. After centrifugation, the centrifuge body 1 is removed, and the liquid layering is observed through the transparent centrifuge body 1 and the inner barrel 3. The height of the lifting sleeve 4 is adjusted so that the elastic band 15 is adjusted to a position slightly above the interface between the two liquid layers. Then, the operator holds the anti-slip button 5 with one hand and rotates the adjusting knob 7 with the other hand, so that the threaded rod 6 and the abutment rod 8 move down while rotating. At this time, the bottom of the abutment rod 8... The piston 10 is squeezed, increasing the pressure in the compression chamber 13 and the hollow chamber 16. Since the hydraulic oil is almost incompressible, the force is transmitted to the elastic band 15. The elastic band 15 deforms and expands under pressure, thus adhering to the inner wall of the inner barrel 3. Then, the cover 2 is rotated in the opposite direction, separating it from the centrifuge body 1. Most of the upper liquid is blocked above by the upper partition 14 and the elastic band 15, allowing the upper liquid above the upper partition 14 to be removed. Then, the adjustment knob 7 is reversed, and the piston 10 moves upward under the force of the spring 11. The pressure in the compression chamber 13 and the hollow chamber 16 is restored, causing the elastic band 15 to also recover, thus allowing the elastic band 15 to form a gap with the inner wall of the inner barrel 3 again, so as to discharge the blocked upper liquid. The discharged upper liquid is collected in a container for subsequent experiments.

[0024] like Figures 2-4 As shown, the slot formed in the second retaining ring 12 constitutes a connecting groove 17 that connects the upper partition 14 and the hollow cavity 16. The compression chamber 13 and the hollow cavity 16 are filled with hydraulic oil.

[0025] like Figures 1-3 As shown, an anti-slip button 5 is fixedly fitted on the outer edge of the top of the lifting sleeve 4. The inner barrel 3 is located inside the centrifuge barrel body 1, and both the inner barrel 3 and the centrifuge barrel body 1 are transparent.

[0026] like Figure 3 As shown, there is a gap between the elastic band 15 and the inner wall of the inner barrel 3. After the elastic band 15 expands under force, it abuts against the inner wall of the inner barrel 3.

[0027] Working principle: When in use, liquid is injected into the centrifuge tank body 1, and then the top of the centrifuge tank body 1 is sealed with the cap 2. Then, the centrifuge tank body 1 is repeatedly turned over to expel the air remaining at the bottom of the lower partition 19. Then, the centrifuge tank body 1 is placed in the centrifuge for stratification.

[0028] After centrifugation, the main body 1 of the centrifuge is removed. Then, the liquid stratification is observed through the transparent main body 1 and inner barrel 3. The height of the lifting sleeve 4 is adjusted so that the elastic band 15 is positioned slightly above the interface between the two liquids. Then, the operator holds the anti-slip button 5 with one hand and rotates the adjusting knob 7 with the other, causing the threaded rod 6 and the push rod 8 to rotate and move downwards. At this time, the bottom of the push rod 8 squeezes the piston 10, increasing the pressure in the compression chamber 13 and the hollow chamber 16. Since the hydraulic oil is almost incompressible, the force is transmitted to the elastic band 15. The elastic band 15 deforms and expands under pressure, thus fitting against the inner wall of the inner barrel 3.

[0029] Next, rotate the cap 2 in the reverse direction to separate the cap 2 from the centrifuge body 1. Most of the upper liquid is blocked above by the upper partition 14 and the elastic band 15, so the upper liquid above the upper partition 14 can be taken out. Then, reverse the adjustment knob 7, and under the action of the spring 11, the piston 10 moves upward. The pressure in the compression chamber 13 and the hollow chamber 16 is restored, so the elastic band 15 is also restored. This allows the elastic band 15 to form a gap with the inner wall of the inner barrel 3 again, so as to discharge the blocked upper liquid. The discharged upper liquid is collected in a container for subsequent experiments.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centrifuge tank for separating liquids, comprising a centrifuge tank body (1), characterized in that: The centrifuge tank body (1) is provided with a partition assembly inside. The partition assembly includes a cover (2) threaded to the top of the centrifuge tank body (1). A lifting sleeve (4) is movably inserted inside the cover (2). An inner tank body (3) is fixedly connected to the inner wall of the top of the cover (2). A first retaining ring (9) is fixedly sleeved on the inner ring surface of the lifting sleeve (4). A piston (10) is abutted at the bottom of the first retaining ring (9). The outer wall of the piston (10) is slidably connected to the inner wall of the lifting sleeve (4), and a spring (1) is abutted at the bottom of the piston (10). 1) The other end of the spring (11) abuts against the second retaining ring (12). The outer wall of the second retaining ring (12) is fixedly connected to the bottom inner edge of the lifting sleeve (4). The bottom of the outer wall of the lifting sleeve (4) is fixedly connected to the upper partition (14). The bottom of the upper partition (14) is fixedly connected to the connecting column (18). The bottom of the connecting column (18) is fixedly connected to the lower partition (19). The outer edges of the upper partition (14) and the lower partition (19) are jointly fixedly connected to the elastic band (15). The lifting sleeve (4) is provided with an adjustment component inside.

2. A centrifuge tank for separating liquids according to claim 1, characterized in that: The adjusting assembly includes a threaded rod (6) threaded inside the lifting sleeve (4), with an adjusting knob (7) fixedly connected to the top of the threaded rod (6) and a stop rod (8) fixedly connected to the bottom of the threaded rod (6). The bottom of the stop rod (8) rotates with the threaded rod (6) to push against the piston (10).

3. A centrifuge tank for separating liquids according to claim 1, characterized in that: A compression cavity (13) is formed in the lifting sleeve (4) between the bottom of the first retaining ring (9) and the top of the second retaining ring (12), and a hollow cavity (16) is formed between the bottom of the upper partition (14) and the top of the lower partition (19).

4. A centrifuge tank for separating liquids according to claim 3, characterized in that: The slot formed in the second retaining ring (12) constitutes a connecting groove (17) connecting the upper partition (14) and the hollow cavity (16), and the compression cavity (13) and the hollow cavity (16) are filled with hydraulic oil.

5. A centrifuge tank for separating liquids according to claim 1, characterized in that: An anti-slip button (5) is fixedly sleeved on the outer edge of the top of the lifting sleeve (4). The inner barrel (3) is located inside the centrifuge barrel body (1), and both the inner barrel (3) and the centrifuge barrel body (1) are transparent.

6. A centrifuge tank for separating liquids according to claim 1, characterized in that: There is a gap between the elastic band (15) and the inner wall of the inner barrel (3). After the elastic band (15) expands under force, it abuts against the inner wall of the inner barrel (3).

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