A multi-specification test tube adapted mixing instrument carrier

Abstract

This invention relates to the field of laboratory equipment technology and discloses a mixer rack adaptable to multiple test tube sizes. The rack includes a base plate with an anti-slip base fixedly installed at its bottom. Four clip frames are fixedly installed at the bottom of the base plate. Frames are fixedly installed at both ends of the top of the base plate, and a top plate is fixedly installed between two of the frame frames. Twelve outer rings are fixedly installed on the inner side of the top plate. A bottom box mechanism located below the outer rings is provided on the top of the base plate. Fixing mechanisms extending to the inner sides of the bottom box mechanism are provided on both the left and right sides of the bottom box mechanism. A limiting mechanism extending to the bottom and located outside the outer rings is provided on the top of the top plate. This mixer rack adaptable to multiple test tube sizes achieves the purpose of adapting to test tubes of different diameters by setting up the bottom box mechanism and the fixing mechanism. By setting up the limiting mechanism and the adjusting mechanism, the vertical plate slides along the top plate, achieving the purpose of having a height-adaptive structure.

Description

Technical Field

[0001] This invention relates to the field of laboratory equipment technology, specifically to a mixer rack that adapts to test tubes of various sizes. Background Technology

[0002] A multi-size test tube compatible mixer stand is a dedicated accessory for laboratory mixers. Its core design eliminates the need for frequent replacements of the entire stand, allowing compatibility with test tubes and centrifuge tubes of various diameters and volumes. During oscillation and mixing, it firmly secures the sample tubes, preventing tipping and splashing, while simultaneously transmitting the mixer's vibration and circumferential motion to achieve uniform mixing of batches of samples. Existing technologies suffer from the following drawbacks: existing stands often employ a fixed aperture design, meaning a single stand can only accommodate test tubes of a single diameter. Laboratories must equip themselves with multiple sizes of stands based on test tube diameters, increasing procurement costs and storage space. Furthermore, changing stands requires interrupting experimental operations, severely reducing efficiency. Additionally, existing stands have fixed aperture depths and lack an effective height-adaptive structure, making them unsuitable for test tubes of different heights. Therefore, this multi-size test tube compatible mixer stand is proposed to address these issues. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a multi-specification test tube adaptable mixer frame, which has the advantages of being able to adapt to test tubes of different diameters and having a height adaptive structure, thus solving the problems mentioned in the background art.

[0005] (II) Technical Solution

[0006] To achieve the aforementioned goal of adapting to test tubes of different diameters and having a height-adaptive structure, the present invention provides the following technical solution: a mixer frame adaptable to multiple test tube sizes, comprising a base plate, an anti-slip base fixedly installed at the bottom of the base plate, four clip frames fixedly installed at the bottom of the base plate, frame bodies fixedly installed at both the left and right ends of the top of the base plate, a top plate fixedly installed between two of the frame bodies, twelve outer rings fixedly installed on the inner side of the top plate, a bottom box mechanism located below the outer rings on the top of the base plate, fixing mechanisms extending to the inner side of the bottom box mechanism on both the left and right sides, a limiting mechanism extending to the bottom and located outside the outer rings on the top of the top plate, and an adjustment mechanism connected to the limiting mechanism on the top of the top plate;

[0007] The bottom box mechanism includes a bottom box, and the bottom box located below the outer ring is fixedly installed on the top of the bottom plate, and a bottom support is fixedly installed on the inner bottom wall of the bottom box.

[0008] Preferably, the fixing mechanism includes a rectangular hole, and rectangular holes are provided on both the left and right sides of the inner wall of the base box. A movable frame that passes through the rectangular hole and extends to the inner side of the base box is slidably installed on the outer side of the base box. A connecting plate located inside the base box is fixedly installed on one side of the movable frame. An arc-shaped clamping plate is fixedly installed on one side of the connecting plate. A flared top plate is fixedly installed on the top of the arc-shaped clamping plate. Two fixing cylinders are fixedly installed between the upper and lower sides of the inner wall of the rectangular hole. A fixing spring that is fixedly connected to the right side of the inner wall of the movable frame is fixedly installed on the inner side of the fixing cylinder. A U-shaped plate that passes through the side wall of the base box is fixedly installed at the bottom of the movable frame.

[0009] Preferably, the limiting mechanism includes a vertical plate, and a vertical plate extending to the bottom of the top plate is slidably installed on the top of the top plate. The number of vertical plates in a single set is two and they are symmetrically distributed on the front and rear sides of the outer ring. A U-shaped frame extending to the rear side is slidably installed on the front side of the vertical plate. A support plate extending to the inner side of the outer ring is fixedly installed on one side of the U-shaped frame. A telescopic spring located inside the U-shaped frame is fixedly installed between the vertical plate and the support plate.

[0010] Preferably, the adjusting mechanism includes a fixed frame, a movable cylinder slidably mounted on the outer side of the fixed frame, connecting plates fixedly mounted on the front and rear sides of the movable cylinder respectively and fixedly connected to two vertical plates, a movable plate slidably mounted between the front and rear sides of the inner wall of the fixed frame, a push plate extending to the top of the movable plate fixedly mounted on the top of the movable plate, a return spring fixedly mounted on one side of the movable plate and fixedly connected to the inner wall of the fixed frame, and a locking block extending to the outer side of the fixed frame fixedly mounted on the other side of the movable plate, with the bottom locking block engaging with the side wall of the movable cylinder.

[0011] Preferably, the inner top wall of the base box is designed to be open, the base is designed to be made of sponge, and the top of the base is provided with an installation groove.

[0012] Preferably, a circular groove is provided on one side of the fixing cylinder, the fixing spring is installed inside the circular groove, the number of fixing cylinders inside a single rectangular hole is two and they are symmetrically distributed front and back, and a soft pad is provided on the inner side of the arc-shaped clamp.

[0013] Preferably, the inner side of the support plate is provided with an anti-slip pad, the front and rear sides of the support plate are symmetrically distributed, and the inner side of the vertical plate is provided with a through hole that is compatible with the U-shaped frame.

[0014] Preferably, the side wall of the movable cylinder is provided with a locking hole, the size of which is adapted to the locking block. The number of locking blocks on a single movable plate is three and they are arranged at equal distances from top to bottom. A sponge plate is provided on one side of the push plate.

[0015] Preferably, a circular hole is provided on the inner side of the top plate, the size of which is adapted to the outer ring, and the two frames are symmetrically distributed from left to right.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a mixer frame that is compatible with multiple test tube sizes, which has the following advantages:

[0018] 1. This multi-size test tube compatible mixer frame, through the setting of a base box mechanism and a fixing mechanism, uses a sponge base to absorb the impact force during mixing, reducing wear on the bottom of the test tubes. At the same time, the bottom of the test tube is fixed by the mounting groove to prevent side slippage. When the test tube is inserted into the base box, the outer wall of the test tube presses against the arc-shaped clamp, pushing the moving frame to slide outward along the rectangular hole, compressing the fixing spring. The elastic restoring force of the spring keeps the arc-shaped clamp in close contact with the outer wall of the test tube, forming an adaptive clamp. The flared design at the top of the arc-shaped clamp guides the test tube to be inserted smoothly, avoiding jamming, and also prevents the test tube from coming out upward during mixing. The U-shaped plate at the bottom of the moving frame ensures the stability of the moving frame, achieving the purpose of adapting to test tubes of different diameters.

[0019] 2. This multi-size test tube compatible mixer frame, through the setting of a limiting mechanism and an adjustment mechanism, allows the vertical plate to slide along the top plate, adjusting the vertical position of the support plate to accommodate test tubes of different heights. The U-shaped frame slides within the vertical plate, and the telescopic spring pushes the support plate to fit tightly against the top edge of the test tube, preventing the test tube from jumping up and down during mixing. Pushing the push plate causes the moving plate to compress the reset spring, and the locking block disengages from the locking hole of the moving cylinder. At this time, the moving cylinder can be slid to adjust the position of the vertical plate. After releasing the push plate, the locking block re-engages into the locking hole under the action of the reset spring, realizing the rapid adjustment and positioning of the support plate height, and achieving the purpose of having a height adaptive structure. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of the structure of the present invention;

[0021] Figure 2 This is a bottom-view perspective view of a partial structure of the present invention;

[0022] Figure 3 This is a sectional perspective view of the bottom box mechanism of the present invention;

[0023] Figure 4 This is a bottom-view sectional perspective view of the fixing mechanism of the present invention;

[0024] Figure 5 This is a right-side sectional perspective view of the fixing mechanism of the present invention;

[0025] Figure 6 This is a partial perspective view of the limiting mechanism and adjusting mechanism of the present invention;

[0026] Figure 7This is a partial cross-sectional perspective view of the adjustment mechanism of the present invention;

[0027] Figure 8 This is a partial exploded sectional view of the limiting mechanism of the present invention.

[0028] In the diagram: 1. Base plate, 2. Anti-slip base, 3. Clip frame, 4. Frame, 5. Top plate, 6. Base box mechanism, 61. Base box, 62. Base support, 7. Fixing mechanism, 71. Rectangular hole, 72. Moving frame, 73. Connecting plate, 74. Arc-shaped clamping plate, 75. Flared top plate, 76. Fixing cylinder, 77. Fixing spring, 78. U-shaped plate, 8. Limiting mechanism, 81. Vertical plate, 82. U-shaped frame, 83. Support plate, 84. Telescopic spring, 9. Adjusting mechanism, 91. Fixing frame, 92. Moving cylinder, 93. Connecting plate, 94. Moving plate, 95. Push plate, 96. Reset spring, 97. Clip block, 10. Outer ring. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-8 The present invention provides a technical solution: a multi-specification test tube compatible mixer frame, including a base plate 1, an anti-slip base 2 fixedly installed at the bottom of the base plate 1, four clip frames 3 fixedly installed at the bottom of the base plate 1, a frame body 4 fixedly installed at both the left and right ends of the top of the base plate 1, a top plate 5 fixedly installed between the two frame bodies 4, twelve outer rings 10 fixedly installed on the inner side of the top plate 5, a bottom box mechanism 6 located below the outer rings 10 is provided on the top of the base plate 1, a fixing mechanism 7 extending to its inner side is provided on both the left and right sides of the bottom box mechanism 6, a limiting mechanism 8 extending to its bottom and located outside the outer rings 10 is provided on the top of the top plate 5, and an adjustment mechanism 9 connected to the limiting mechanism 8 is provided on the top of the top plate 5.

[0031] A circular hole is provided on the inner side of the top plate 5. The size of the circular hole is adapted to the outer ring 10. The two frames 4 are symmetrically distributed from left to right.

[0032] The base plate 1 serves as the foundation of the entire carrier, bearing the weight of all components. It is stably fixed to the frame 3 via the anti-slip base 2. The bottom anti-slip base 2 increases the friction with the worktable of the mixer, preventing the carrier from sliding during high-speed mixing. The frame body 4 and the top plate 5 form the frame structure of the carrier, supporting the top plate 5 and the outer ring 10. At the same time, it provides installation positions for the limiting mechanism 8 and the adjusting mechanism 9. The symmetrically distributed frame body 4 balances the force on the carrier, avoiding deformation caused by unilateral overload. The circular hole of the top plate 5 fits tightly with the outer ring 10 to form a guide channel for inserting test tubes, ensuring that the test tubes are inserted vertically and reducing swaying during mixing.

[0033] The bottom box mechanism 6 includes a bottom box 61. The bottom box 61, located below the outer ring 10, is fixedly installed on the top of the bottom plate 1. A bottom support 62 is fixedly installed on the inner bottom wall of the bottom box 61.

[0034] The inner top wall of the base box 61 is designed with an opening, the base support 62 is made of sponge, and the top of the base support 62 has an installation groove.

[0035] The base box 61 houses the fixing mechanism 7 and provides support space for the bottom of the test tube. The inner top wall opening design allows the test tube to be directly inserted into the base 62, avoiding structural interference. The side wall through hole allows the U-shaped plate 78 to slide and connect to the drive shaft of the external mixer. The base 62 fixes the bottom of the test tube, absorbs the impact force during mixing, and prevents the bottom of the test tube from being worn or broken. It adapts to the shape of different test tube bottoms (such as flat bottoms and round bottoms) through deformation, providing uniform support force. The top mounting groove restricts the lateral movement of the bottom of the test tube and works in conjunction with the arc-shaped clamp 74 of the fixing mechanism 7 to prevent the test tube from sliding sideways.

[0036] The fixing mechanism 7 includes a rectangular hole 71. Rectangular holes 71 are provided on both the left and right sides of the inner wall of the base box 61. A movable frame 72 is slidably installed on the outer side of the base box 61, passing through the rectangular hole 71 and extending to the inner side of the base box 61. A connecting plate 73 located inside the base box 61 is fixedly installed on one side of the movable frame 72. An arc-shaped clamping plate 74 is fixedly installed on one side of the connecting plate 73. A flared top plate 75 is fixedly installed on the top of the arc-shaped clamping plate 74. Two fixing cylinders 76 are fixedly installed between the upper and lower sides of the inner wall of the rectangular hole 71. A fixing spring 77 fixedly connected to the right side of the inner wall of the movable frame 72 is fixedly installed on the inner side of the fixing cylinder 76. A U-shaped plate 78 passing through the side wall of the base box 61 is fixedly installed at the bottom of the movable frame 72.

[0037] A circular groove is provided on one side of the fixing cylinder 76, and the fixing spring 77 is installed inside the circular groove. There are two fixing cylinders 76 inside the single rectangular hole 71, which are symmetrically distributed front and back. A soft pad is provided on the inner side of the arc-shaped clamp 74.

[0038] The rectangular hole 71 and the movable frame 72 provide a lateral sliding track for the arc-shaped clamp 74, enabling adaptive clamping of the test tube diameter. The size of the rectangular hole 71 limits the sliding range of the movable frame 72, preventing the arc-shaped clamp 74 from excessively squeezing the test tube. The through structure of the movable frame 72 ensures that it is linked with the U-shaped plate 78 on the outside of the base box 61 to transmit mixing power. The arc-shaped clamp 74 clamps the outer wall of the test tube by the elastic force of the fixing spring 77, accommodating test tubes of different diameters (e.g., 10-30mm). The flared top plate 75 guides the test tube to be inserted smoothly, while preventing the test tube from coming off upwards during mixing. The soft padding liner reduces the rigidity between the clamp and the outer wall of the test tube. To prevent contact and scratches on glass or plastic test tubes, the fixing cylinder 76 and fixing spring 77 provide elastic restoring force, ensuring that the arc-shaped clamp 74 always fits tightly against the outer wall of the test tube. One end of the circular groove structure fixing spring 77 is embedded in the circular groove, and the other end is connected to the moving frame 72, ensuring that the spring is stable in direction when compressed / extended, avoiding deviation that could lead to uneven clamping force. The double fixing cylinders 76 are symmetrically distributed front and back to enhance structural strength and prevent single-sided spring failure. The U-shaped plate 78 connects to the drive shaft of the external mixer, transmitting rotational or vibrational energy to the bottom box 61 to drive the test tubes to mix. The bottom through-type structure is engaged with the drive shaft to ensure efficient power transmission without slippage.

[0039] The limiting mechanism 8 includes a vertical plate 81. The top plate 5 is slidably mounted with a vertical plate 81 extending to its bottom. There are two vertical plates 81 in a single set, which are symmetrically distributed on the front and rear sides of the outer ring 10. A U-shaped frame 82 extending to its rear side is slidably mounted on the front side of the vertical plate 81. A support plate 83 extending to the inner side of the outer ring 10 is fixedly mounted on one side of the U-shaped frame 82. A telescopic spring 84 located inside the U-shaped frame 82 is fixedly mounted between the vertical plate 81 and the support plate 83.

[0040] The inner side of the support plate 83 is provided with an anti-slip pad, and the front and rear support plates 83 are symmetrically distributed. The inner side of the vertical plate 81 is provided with a through hole that matches the U-shaped frame 82.

[0041] The vertical plate 81 supports the U-shaped frame 82 and can be adjusted to accommodate test tubes of different heights. The two sets of vertical plates 81 are located on the front and rear sides of the outer ring 10, forming a surrounding limit on the top of the test tube. The U-shaped frame 82 slides within the vertical plate 81 to adjust the height of the support plate 83. The support plate 83 presses against the top edge of the test tube to prevent the test tube from jumping up and down during mixing. The anti-slip pad lining increases the friction between the support plate 83 and the top of the test tube to prevent slippage. The telescopic spring 84 provides downward pressure so that the support plate 83 is always in close contact with the top of the test tube, accommodating test tubes of different heights (e.g., 50-150mm).

[0042] The adjustment mechanism 9 includes a fixed frame 91, a movable cylinder 92 slidably mounted on the outer side of the fixed frame 91, connecting plates 93 fixedly mounted on the front and rear sides of the movable cylinder 92 respectively and fixedly connected to two vertical plates 81, a movable plate 94 slidably mounted between the front and rear sides of the inner wall of the fixed frame 91, a push plate 95 extending above the fixed frame 91 fixedly mounted on the top of the movable plate 94, a return spring 96 fixedly mounted on one side of the movable plate 94 and fixedly connected to the inner wall of the fixed frame 91, and a locking block 97 extending to the outer side of the fixed frame 91 fixedly mounted on the other side of the movable plate 94, with the bottom locking block 97 engaging with the side wall of the movable cylinder 92.

[0043] The side wall of the movable cylinder 92 is provided with a locking hole, the size of which is adapted to the locking block 97. There are three locking blocks 97 on a single movable plate 94, which are arranged at equal distances from top to bottom. A sponge plate is provided on one side of the push plate 95.

[0044] The fixed frame 91 is fixed to the top plate 5, providing a sliding track for the moving plate 94. The moving cylinder 92 is connected to two sets of vertical plates 81 through the connecting plate 93, and the limiting mechanisms 8 on the front and rear sides are adjusted synchronously. The side wall locking holes cooperate with the locking blocks 97 to realize the graded positioning of the moving cylinder 92 and quickly switch to the commonly used test tube specifications (such as 15mL and 50mL centrifuge tubes). The moving plate 94 drives the locking blocks 97 to extend and retract, controlling the locking and releasing of the moving cylinder 92. The push plate 95 facilitates manual operation by the user. Pushing the moving plate 94 compresses the reset spring 96. The sponge plate increases the friction of the push plate 95 to prevent slippage during operation. The reset spring 96 pushes the moving plate 94 to reset, so that the locking blocks 97 automatically lock into the locking holes of the moving cylinder 92. The locking blocks 97 have a three-level locking hole design, providing a coarse adjustment range (such as small, medium and large test tube specifications), simplifying the adjustment process. The equidistant arrangement of the locking blocks 97 ensures that the step distance of each adjustment is consistent and improves the fitting accuracy.

[0045] When in use, place the base plate 1 on the worktable of the mixer. The anti-slip base 2 and the clamping frame 3 ensure that the carrier is stable and does not slide. Insert the drive shaft of the mixer into the clamping frame 3 to transmit power and push the push plate 95 to move, so that the clamping block 97 disengages from the clamping hole of the moving cylinder 92. Slide the moving cylinder 92 to drive the vertical plate 81 to move up and down. Adjust the height to match the height of the test tube. Release the push plate 95, and the clamping block 97 will engage with the nearest clamping hole to fix the position of the vertical plate 81. After inserting the test tube, release the U-shaped frame 82. The telescopic spring 84 pushes the support plate 83 down to press against the top edge of the test tube. Insert the test tube from the outer ring 10. The bottom of the test tube enters the mounting groove of the base 62. The outer wall squeezes the arc-shaped clamping plate 74. The fixing spring 77 compresses and clamps the test tube. The drive shaft vibrates as a whole. The test tube remains stable under the combined action of the elastic clamping and the limiting mechanism 8, achieving uniform mixing. After mixing is completed, stop the mixer, turn off the power of the mixer, and then pull out the test tube directly.

[0046] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0047] In summary, this multi-size test tube compatible mixer frame, through the setting of a base box mechanism 6 and a fixing mechanism 7, uses a sponge-material base 62 to absorb the impact force during mixing, reducing wear on the bottom of the test tubes. Simultaneously, the mounting groove fixes the bottom of the test tubes to prevent lateral slippage. When a test tube is inserted into the base box 61, the outer wall of the test tube presses against the arc-shaped clamp 74, pushing the moving frame 72 to slide outward along the rectangular hole 71, compressing the fixing spring 77. The elastic restoring force of the spring ensures that the arc-shaped clamp 74 remains tightly against the outer wall of the test tube, forming an adaptive clamp. The flared design at the top of the arc-shaped clamp 74 guides the test tube to insert smoothly, avoiding jamming, and also prevents the test tube from slipping upwards during mixing. The U-shaped plate 78 at the bottom of the moving frame 72 ensures the stability of the moving frame 72's movement, achieving the goal of adapting to test tubes of different diameters. By setting a limiting mechanism 8 and an adjusting mechanism 9, the vertical plate 81 slides along the top plate 5, adjusting the vertical position of the support plate 83 to adapt to test tubes of different heights. Body 82 slides within vertical plate 81, and through telescopic spring 84 pushes support plate 83 to press tightly against the top edge of test tube, preventing the test tube from jumping up and down during mixing. Pushing push plate 95 causes moving plate 94 to compress reset spring 96, and locking block 97 disengages from locking hole of moving cylinder 92. At this time, moving cylinder 92 can be slid to adjust the position of vertical plate 81. After releasing push plate 95, locking block 97 re-engages into locking hole under the action of reset spring 96, realizing rapid height adjustment and positioning of support plate 83. This achieves the purpose of having a height adaptive structure, solving the problem that existing carrier racks mostly use fixed hole diameter designs, and a single carrier rack can only adapt to test tubes of a single diameter. The laboratory needs to equip carrier racks of various specifications according to the diameter of the test tubes, which not only increases the laboratory's procurement costs and storage space, but also requires interruption of experimental operation when changing carrier racks, seriously reducing experimental efficiency. In addition, the hole depth of existing carrier racks is fixed and lacks an effective height adaptive structure, making it unable to adapt well to test tubes of different heights.

[0048] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0049] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-specification test tube compatible mixer frame, comprising a base plate (1), wherein an anti-slip base (2) is fixedly installed at the bottom of the base plate (1), four clip frames (3) are fixedly installed at the bottom of the base plate (1), and frame bodies (4) are fixedly installed at both the left and right ends of the top of the base plate (1), and a top plate (5) is fixedly installed between the two frame bodies (4), wherein twelve outer rings (10) are fixedly installed on the inner side of the top plate (5), characterized in that: The bottom plate (1) is provided with a bottom box mechanism (6) located below the outer ring (10) at the top. The bottom box mechanism (6) is provided with a fixing mechanism (7) extending to its inner side on both the left and right sides. The top plate (5) is provided with a limiting mechanism (8) extending to its bottom and located outside the outer ring (10) at the top. The top plate (5) is provided with an adjustment mechanism (9) connected to the limiting mechanism (8). The bottom box mechanism (6) includes a bottom box (61), and the bottom box (61) located below the outer ring (10) is fixedly installed on the top of the bottom plate (1). The bottom support (62) is fixedly installed on the inner bottom wall of the bottom box (61).

2. The mixer frame for multi-specification test tubes according to claim 1, characterized in that: The fixing mechanism (7) includes a rectangular hole (71). The inner wall of the base box (61) is provided with rectangular holes (71) on both the left and right sides. A movable frame (72) is slidably installed on the outer side of the base box (61) through the rectangular hole (71) and extending to the inner side of the base box (61). A connecting plate (73) located inside the base box (61) is fixedly installed on one side of the movable frame (72). An arc-shaped clamp (74) is fixedly installed on one side of the connecting plate (73). A flared top plate (75) is fixedly installed on the top of the arc-shaped clamp (74). Two fixing cylinders (76) are fixedly installed between the upper and lower sides of the inner wall of the rectangular hole (71). A fixing spring (77) fixedly connected to the right side of the inner wall of the movable frame (72) is fixedly installed on the inner side of the fixing cylinder (76). A U-shaped plate (78) penetrating the side wall of the base box (61) is fixedly installed at the bottom of the movable frame (72).

3. The mixer frame for multi-specification test tubes according to claim 1, characterized in that: The limiting mechanism (8) includes a vertical plate (81). The top plate (5) is slidably mounted with a vertical plate (81) extending to its bottom. There are two vertical plates (81) in a single set, which are symmetrically distributed on the front and rear sides of the outer ring (10). A U-shaped frame (82) extending to its rear side is slidably mounted on the front side of the vertical plate (81). A support plate (83) extending to the inner side of the outer ring (10) is fixedly mounted on one side of the U-shaped frame (82). A telescopic spring (84) located inside the U-shaped frame (82) is fixedly mounted between the vertical plate (81) and the support plate (83).

4. The multi-specification test tube compatible mixer frame according to claim 3, characterized in that: The adjustment mechanism (9) includes a fixed frame (91), a movable cylinder (92) is slidably installed on the outside of the fixed frame (91), and connecting plates (93) are fixedly installed on the front and rear sides of the movable cylinder (92) respectively, which are fixedly connected to two vertical plates (81). A movable plate (94) is slidably installed between the front and rear sides of the inner wall of the fixed frame (91). A push plate (95) extending to the top of the movable plate (94) is fixedly installed on the top of the movable plate (94). A reset spring (96) fixedly connected to the inner wall of the fixed frame (91) is fixedly installed on one side of the movable plate (94). A locking block (97) extending to the outside of the fixed frame (91) is fixedly installed on the other side of the movable plate (94). The locking block (97) at the bottom is engaged with the side wall of the movable cylinder (92).

5. The mixer carrier adapted to multi-specification test tubes according to claim 1, characterized in that: The inner top wall of the base box (61) is designed with an opening, the base support (62) is designed with sponge, and the top of the base support (62) is provided with an installation groove.

6. The mixer carrier adapted to multi-specification test tubes according to claim 2, characterized in that: A circular groove is provided on one side of the fixed cylinder (76), and the fixed spring (77) is installed inside the circular groove. There are two fixed cylinders (76) inside the single rectangular hole (71) and they are symmetrically distributed front and back. A soft pad is provided on the inner side of the arc-shaped clamp (74).

7. A mixer frame for multi-specification test tubes according to claim 3, characterized in that: The inner side of the support plate (83) is provided with an anti-slip pad, and the support plates (83) on the front and rear sides are symmetrically distributed. The inner side of the vertical plate (81) is provided with a through hole that is compatible with the U-shaped frame (82).

8. A mixer carrier adapted to multi-size test tubes according to claim 4, characterized in that: The side wall of the movable cylinder (92) is provided with a card hole, the size of which is adapted to the card block (97). The number of card blocks (97) on a single movable plate (94) is three and they are arranged at equal distances from top to bottom. A sponge board is provided on one side of the push plate (95).

9. A mixer frame for adapting to multi-specification test tubes according to claim 1, characterized in that: The top plate (5) has a circular hole on its inner side, the size of which is adapted to the outer ring (10), and the two frames (4) are symmetrically distributed from left to right.

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