Table type centrifugal machine with sample splash-proof protective cover

Abstract

The utility model provides a table centrifuge with a sample splash-proof protective cover, which comprises a centrifuge body, a splash-proof top cover, a movable seat, a sliding groove, a positioning plate, a fixed seat, a positioning groove, a locking fixture block and a connecting rod, the sliding groove is arranged on the upper end face of the centrifuge body, and the movable seat is arranged in the sliding groove. A splash-proof top cover is arranged above the centrifugal machine body, positioning plates are symmetrically arranged on the left side and the right side of the splash-proof top cover, fixing seats are symmetrically arranged on the left end face and the right end face of the centrifugal machine body, positioning grooves are formed in the fixing seats, locking clamping blocks are arranged in the fixing seats, and connecting rods are arranged in the fixing seats. By means of the design, the problem that a top cover of an original table type centrifugal machine is not convenient to open or close is solved, the splash-proof top cover is reasonable in structure, the splash-proof top cover can be rapidly and conveniently opened or closed, the splash-proof top cover has a strong protection effect after being closed, and practicability is high.

Description

Technical Field

[0001] This utility model relates to a benchtop centrifuge with a sample splash-proof protective cover, belonging to the technical field of benchtop centrifuges. Background Technology

[0002] Centrifuges are machines that use centrifugal force to separate components in a mixture of liquids and solid particles or liquids and liquids. Centrifuges are mainly used to separate solid particles from liquids in suspensions or to separate two immiscible liquids with different densities in emulsions. During the use of centrifuges, samples in test tubes may splash and contaminate the environment. Centrifuges must be balanced according to the principle of balance. If the balance is not performed, the sample and test tube may detach from the centrifuge and fly out, causing injury to the user. Therefore, centrifuges are usually equipped with protective covers or top covers to prevent splashing or test tubes from flying out. However, the protective covers or top covers of existing centrifuges are not convenient to open and close, and the closing effect is not good. There is an urgent need for a benchtop centrifuge with a sample splash-proof protective cover to solve the above problems. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a benchtop centrifuge with a sample splash-proof protective cover to solve the problems mentioned in the background art. This utility model has a reasonable structure, and the splash-proof top cover can be opened or closed quickly and conveniently. After being closed, the splash-proof top cover has a strong protective effect and is highly practical.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a benchtop centrifuge with a sample splash-proof protective cover, comprising a centrifuge body, a splash-proof top cover, a movable seat, a sliding groove, a positioning plate, a fixed seat, a positioning groove, a locking block, and a connecting rod. The centrifuge body has a sliding groove on its upper surface, and a movable seat is disposed inside the sliding groove. A splash-proof top cover is disposed above the centrifuge body, and positioning plates are symmetrically arranged on both sides of the splash-proof top cover. Fixed seats are symmetrically arranged on both the left and right ends of the centrifuge body, and positioning grooves are provided inside the fixed seats. Locking blocks are disposed inside the fixed seats, and a connecting rod is disposed inside the fixed seats.

[0005] Furthermore, a handle is provided on the upper surface of the splash-proof top cover, a connecting groove is provided on the inner side of the splash-proof top cover, and connecting shafts are provided on the left and right end faces of the movable seat. The splash-proof top cover is rotatably connected to the connecting shafts through the connecting grooves.

[0006] Furthermore, the movable seat slides tightly along the inner wall of the sliding groove, a limiting groove is opened inside the movable seat, a limiting rod is provided inside the sliding groove, the limiting rod slides tightly along the inner wall of the limiting groove, and a compression spring is sleeved on the outer side of the limiting rod.

[0007] Furthermore, the left and right end faces of the splash-proof top cover are provided with ear plates, the positioning plate is provided on the lower end face of the ear plates, the positioning plate is slidably engaged with the positioning groove, and the outer side of the positioning plate is provided with a locking groove, the locking groove and the locking block are engaged with each other.

[0008] Furthermore, the fixed base has a cavity inside, the locking block slides tightly along the inner wall of the cavity, the connecting rod is disposed inside the cavity, and a connecting block is disposed on the outer side of the fixed base. The locking block and the connecting block are fixedly connected by the connecting rod.

[0009] Furthermore, a return spring is provided inside the cavity, and several sets of return springs of the same specifications are provided. The two ends of the return spring abut against the inner wall of the cavity and the locking block, respectively.

[0010] The beneficial effects of this utility model are as follows: This utility model provides a benchtop centrifuge with a sample splash-proof protective cover. Because this utility model adds a splash-proof top cover, a positioning plate, a positioning groove, a limiting block, and a limiting groove, the user places the test tubes inside the centrifuge body and levels them. Then, the splash-proof top cover is flipped to a horizontal position, and then the splash-proof top cover is pressed down, so that the positioning plate under the two side ear plates is inserted into the positioning groove until the limiting block and the limiting groove are engaged with each other, thereby fixing the position of the positioning plate and the splash-proof top cover. The splash-proof top cover can prevent the sample and test tubes from flying out. Attached Figure Description

[0011] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0012] Figure 1 This is a schematic diagram of the structure of a benchtop centrifuge with a sample splash-proof protective cover according to the present invention;

[0013] Figure 2 This is a schematic diagram of the structure of a benchtop centrifuge with a sample splash-proof protective cover according to the present invention when it is pulled up;

[0014] Figure 3 This is a schematic diagram of the structure of a benchtop centrifuge with a sample splash-proof protective cover when it is flipped open according to the present invention.

[0015] Figure 4 This is a cross-sectional view of the movable base in a benchtop centrifuge with a sample splash-proof protective cover according to the present invention.

[0016] Figure 5 This is a cross-sectional view of the fixed base in a benchtop centrifuge with a sample splash-proof protective cover according to the present invention.

[0017] In the diagram: 1-Centrifuge body, 2-Splashproof top cover, 21-Handle, 22-Ear plate, 23-Connecting groove, 3-Moving seat, 31-Limiting groove, 32-Connecting shaft, 4-Sliding groove, 41-Limiting rod, 42-Compression spring, 5-Positioning plate, 51-Locking groove, 6-Fixed seat, 61-Cavity, 7-Positioning groove, 8-Locking block, 9-Connecting rod, 91-Connecting block, 92-Reset spring. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please see Figures 1-5 This utility model provides a technical solution: a benchtop centrifuge with a sample splash-proof protective cover, including a centrifuge body 1, a splash-proof top cover 2, a movable seat 3, a sliding groove 4, a positioning plate 5, a fixed seat 6, a positioning groove 7, a locking block 8, and a connecting rod 9. The upper end face of the centrifuge body 1 is provided with a sliding groove 4, and the movable seat 3 is provided inside the sliding groove 4. The splash-proof top cover 2 is provided on the top of the centrifuge body 1. The positioning plates 5 are symmetrically arranged on the left and right sides of the splash-proof top cover 2. The fixed seats 6 are symmetrically arranged on the left and right ends of the centrifuge body 1. The fixed seats 6 are provided with a positioning groove 7, a locking block 8, and a connecting rod 9. This design solves the problem that the opening and closing of the top cover of the original benchtop centrifuge is not convenient.

[0020] As the first embodiment of this utility model: a handle 21 is provided on the upper end face of the splash-proof top cover 2, which facilitates the user to open the splash-proof top cover 2. A connecting groove 23 is provided on the inner side of the splash-proof top cover 2. A connecting shaft 32 is provided on the left and right end faces of the movable seat 3. The splash-proof top cover 2 is rotatably connected to the connecting shaft 32 through the connecting groove 23. The splash-proof top cover 2 can be rotated around the connecting shaft 32. The movable seat 3 slides tightly along the inner wall of the sliding groove 4. A limit groove 31 is opened inside the movable seat 3. A limit rod 41 is provided inside the sliding groove 4. The limit rod 41 slides tightly along the inner wall of the limit groove 31. The design of the limit rod 41 and the limit groove 31 can make the movement of the movable seat 3 more stable and prevent the movable seat 3 from disengaging from the sliding groove 4. A compression spring 42 is sleeved on the outer side of the limit rod 41. The compression spring 42 can push the movable seat 3. An ear plate 22 is provided, and a positioning plate 5 is located on the lower end face of the ear plate 22. The positioning plate 5 slides and engages with the positioning groove 7. A locking groove 51 is provided on the outer side of the positioning plate 5. The locking groove 51 engages with the locking block 8. The design of the locking block 8 and the locking groove 51 can fix the position of the positioning plate 5. A cavity 61 is provided inside the fixing seat 6. The locking block 8 slides tightly along the inner wall of the cavity 61. A connecting rod 9 is provided inside the cavity 61. A connecting block 91 is provided on the outer side of the fixing seat 6. The locking block 8 and the connecting block 91 are fixedly connected by the connecting rod 9. The connecting plate can drive the locking block 8 to move through the connecting rod 9. A return spring 92 is provided inside the cavity 61. Several sets of return springs 92 are provided. The two ends of the return spring 92 abut against the inner wall of the cavity 61 and the locking block 8, respectively. The return spring 92 can help the locking block 8 to return to its original position.

[0021] As a second embodiment of this utility model: The user places the test tube inside the centrifuge body 1 and levels it. Then, the splash-proof top cover 2 is flipped to a horizontal position, and then the splash-proof top cover 2 is pressed down so that the positioning plate 5 under the ear plates 22 on both sides is inserted into the positioning groove 7 until the limiting block and the limiting groove 31 are engaged with each other, thereby fixing the position of the positioning plate 5 and the splash-proof top cover 2. The splash-proof top cover 2 can prevent the sample and test tube from flying out. After centrifugation is completed, the user first pulls the connecting block 91 outward. The connecting block 91 drives the locking block 8 to move together through the connecting rod 9, releasing the mutual engagement between the locking block 8 and the locking groove 51, and no longer limiting the positioning plate 5. At this time, the spring 42 is squeezed to release the elastic potential energy and push the moving seat 3 upward. The moving seat 3 drives the splash-proof top cover 2 to move upward together through the connecting shaft 32 until the positioning plate 5 is disengaged from the positioning groove 7. At this time, the handle 21 can be pulled and the splash-proof top cover 2 can be flipped open.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A benchtop centrifuge with a sample splash-proof protective cover, comprising a centrifuge body, a splash-proof top cover, a movable base, a sliding groove, a positioning plate, a fixed base, a positioning groove, a locking block, and a connecting rod, characterized in that: The centrifuge body has a sliding groove on its upper surface, and a movable seat is provided inside the sliding groove. A splash-proof top cover is provided on the top of the centrifuge body, and positioning plates are symmetrically arranged on the left and right sides of the splash-proof top cover. Fixed seats are symmetrically arranged on the left and right ends of the centrifuge body, and positioning grooves are provided inside the fixed seats. Locking blocks are provided inside the fixed seats, and connecting rods are provided inside the fixed seats.

2. A benchtop centrifuge with a sample splash-proof protective cover according to claim 1, characterized in that: The top surface of the splash-proof cover is provided with a handle, the inner side of the splash-proof cover is provided with a connecting groove, and the left and right end faces of the movable seat are provided with connecting shafts. The splash-proof cover is rotatably connected to the connecting shafts through the connecting grooves.

3. A benchtop centrifuge with a sample splash-proof protective cover according to claim 1, characterized in that: The movable seat slides tightly along the inner wall of the sliding groove. A limiting groove is opened inside the movable seat. A limiting rod is provided inside the sliding groove. The limiting rod slides tightly along the inner wall of the limiting groove. A compression spring is sleeved on the outer side of the limiting rod.

4. A benchtop centrifuge with a sample splash-proof protective cover according to claim 1, characterized in that: The splash-proof top cover has ear plates on both the left and right ends, and the positioning plate is set on the lower end of the ear plates. The positioning plate is slidably engaged with the positioning groove. The outer side of the positioning plate has a locking groove, which is engaged with the locking block.

5. A benchtop centrifuge with a sample splash-proof protective cover according to claim 1, characterized in that: The fixed base has a cavity inside, the locking block slides tightly along the inner wall of the cavity, the connecting rod is set inside the cavity, and a connecting block is set on the outer side of the fixed base. The locking block and the connecting block are fixedly connected by the connecting rod.

6. A benchtop centrifuge with a sample splash-proof protective cover according to claim 5, characterized in that: A return spring is provided inside the cavity. Several sets of return springs of the same specifications are provided. The two ends of the return spring abut against the inner wall of the cavity and the locking block, respectively.

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