Clamping and positioning device for microplate reader

Abstract

The microplate reader clamping and positioning device comprises a tray main body, a cover plate is arranged at the bottom of the tray main body, and a top block and a spring are arranged between the tray main body and the cover plate; placing holes for placing 96-well plates are formed in the tray main body, the placing holes are formed in a penetrating manner in the vertical direction, and the placing holes are of a rectangular structure; a main body of the top block is of an L-shaped structure, one end of the L-shaped structure is provided with an inclined plane part, the inclined plane part is arranged towards the placing hole, and the other end of the L-shaped structure is provided with a pressing part of a columnar structure; a plurality of protruding parts are arranged on the two sides of a main body of the ejector block in a staggered mode, and the protruding parts and the springs are arranged in a one-to-one correspondence mode. The microplate reader clamping and positioning device provided by the utility model is convenient for taking and placing a 96-well plate, the 96-well plate is automatically clamped in the placing process, accurate positioning is realized, and the use accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to a clamping and positioning device for an enzyme marker, and belongs to the technical field of enzyme-linked immunosorbent assay. Background Art

[0002] The enzyme-linked immunosorbent assay (ELISA) is a special instrument for ELISA, also known as a microplate detector. The basic working principle and main structure of the ELISA are basically the same as those of a photoelectric colorimeter. The light waves emitted by the light source lamp are converted into a monochromatic light through a filter or a monochromator and enter the sample to be tested in the plastic microplate. Part of the monochromatic light is absorbed by the sample, and the other part is irradiated onto the photodetector through the sample. The photodetector converts the light signal of the sample to be tested into a corresponding electrical signal. After pre-amplification, logarithmic amplification, analog-to-digital conversion and other signal processing, the electrical signal is sent to the microprocessor for data processing and calculation, and finally the display and printer display the results.

[0003] The microplates used in the microplate reader include 24-well plates, 48-well plates, 96-well plates, etc. Different instruments use different well plates, which can be tested well by well or row by row. However, the 96-well plates in the prior art generally have the problems of inconvenience in taking and placing and inaccurate positioning, which affects the accuracy of use.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the deficiencies in the background technology, the utility model provides a clamping and positioning device for an ELISA instrument, which is convenient for taking and placing a 96-well plate. The 96-well plate is automatically clamped during the placement process to achieve precise positioning and ensure accuracy of use.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The clamping and positioning device of the enzyme labeling instrument comprises a tray body, a cover plate is arranged at the bottom of the tray body, and a top block and a spring are installed between the tray body and the cover plate;

[0008] The tray body is provided with a placement hole for placing a 96-well plate;

[0009] The main body of the top block is in an L-shaped structure, one end of the L-shaped structure is provided with an inclined portion, the inclined portion is arranged toward the placement hole, and the other end of the L-shaped structure is provided with a pressing portion of a columnar structure;

[0010] A plurality of protrusions are arranged alternately on both sides of the main body of the top block, and the protrusions are arranged in one-to-one correspondence with the springs.

[0011] Furthermore, the placement hole is arranged to penetrate along the vertical direction, and the placement hole has a rectangular structure.

[0012] Furthermore, a rectangular hole for detecting the passage of the light beam is provided in the cover plate, and the size of the rectangular hole is smaller than the size of the placement hole.

[0013] Furthermore, a slide groove for installing the top block is provided in the lower surface of the tray body, the slide groove is located at the side of the placement hole, and one end of the slide groove is connected to a corner of the rectangular placement hole.

[0014] Furthermore, the pressing portion is inserted into a sliding hole, the sliding hole is provided at a side end of the tray body, and the sliding hole is communicated with the sliding groove.

[0015] Furthermore, one end of the spring abuts against the protruding portion, and one end of the spring abuts against the tray body.

[0016] Furthermore, the number of the protrusions and the number of the springs are both three.

[0017] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0018] The pressing portion of the top block in the utility model corresponds to the position of the index finger of the left hand, which is convenient for exerting force and more ergonomic when taking and placing the 96-well plate.

[0019] The inclined portion on the right side of the top block in the utility model pushes the 96-well plate to align with the lower left corner of the placement hole, and the 96-well plate is clamped under the action of three springs, so that the 96-well plate is finally kept relatively fixed on the tray body, thereby increasing the accuracy of the use of the microplate reader.

[0020] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural stereogram of the utility model;

[0022] Figure 2 It is a structural stereogram of the utility model along another direction;

[0023] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the utility model after the cover plate is removed;

[0025] Figure 5 It is a structural diagram of the pallet body;

[0026] Figure 6 This is a schematic diagram of the placement of a 96-well plate.

[0027] In the figure, 1-96-well plate; 2-tray body, 21-placing hole, 22-slide groove, 23-slide hole; 3-cover plate; 4-top block, 41-inclined portion, 42-raised portion, 43-pressing portion; 5-spring. DETAILED DESCRIPTION

[0028] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0029] like Figure 1-Figure 6 As shown together, the utility model provides a clamping and positioning device for an ELISA instrument, including a tray body 2 , a cover plate 3 is provided at the bottom of the tray body 2 , and a top block 4 and a spring 5 are installed between the tray body 2 and the cover plate 3 .

[0030] The tray body 2 is provided with a placement hole 21 for placing the 96-well plate 1 . The placement hole 21 is vertically penetrated and has a rectangular structure.

[0031] A slide groove 22 for mounting the top block 4 is provided in the lower surface of the tray body 2 . The slide groove 22 is located at the side of the placement hole 21 , and one end of the slide groove 22 is connected to a corner of the rectangular placement hole 21 .

[0032] The main body of the top block 4 is in an L-shaped structure, one end of the L-shaped structure is provided with an inclined portion 41, and the inclined portion 41 is arranged toward the placement hole 21, and the other end of the L-shaped structure is provided with a pressing portion 43, and the pressing portion 43 is a columnar structure.

[0033] The pressing portion 43 is inserted into the sliding hole 23 . The sliding hole 23 is provided at the side end of the tray body 2 . The sliding hole 23 is communicated with the sliding groove 22 .

[0034] The main body of the top block 4 has a plurality of staggered protrusions 42 on both sides. The protrusions 42 are arranged in one-to-one correspondence with the springs 5 ​​. One end of the spring 5 abuts against the protrusion 42 , and one end of the spring 5 abuts against the tray body 2 .

[0035] The number of the protrusions 42 and the number of the springs 5 ​​are both three. The springs 5 ​​drive the top block 4 to slide along the slide groove 22 during the rebound process, and the inclined portion 41 of the top block 4 presses one end of the 96-well plate 1 .

[0036] The cover plate 3 is provided with a rectangular hole for the detection light beam to pass through, and the size of the rectangular hole is smaller than the size of the placement hole 21. The cover plate 3 can also play the role of supporting the 96-well plate 1.

[0037] The specific working principle of this utility model:

[0038] When placing the 96-well plate 1, press the pressing part 43 of the top block 4 with the index finger of the left hand at the same time to compress the spring 5, and then place the 96-well plate 1 horizontally into the tray body 2. After placing it, release the index finger of the left hand, and the top block 4 rebounds under the action of the three springs 5. Use the inclined portion 41 on the right side of the top block 4 to push the 96-well plate 1 to align with the lower left corner of the placement hole 21 (reset to 0 point) to facilitate accurate positioning during detection.

[0039] When taking out the 96-well plate 1, the index finger of the left hand presses the pressing portion 43 of the top block 4 to compress the spring 5, and the left and right hands respectively push the 96-well plate 1 out from below to complete the taking action.

[0040] The pressing portion of the top block in the utility model corresponds to the position of the index finger of the left hand, which is convenient for exerting force and more ergonomic when taking and placing the 96-well plate.

[0041] The inclined portion on the right side of the top block in the utility model pushes the 96-well plate to align with the lower left corner of the placement hole, and the 96-well plate is clamped under the action of three springs, so that the 96-well plate is finally kept relatively fixed on the tray body (reset to 0 point), thereby increasing the accuracy of the use of the microplate reader.

[0042] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. The clamping and positioning device of the microplate reader is characterized by: It comprises a tray body (2), a cover plate (3) is provided at the bottom of the tray body (2), and a top block (4) and a spring (5) are installed between the tray body (2) and the cover plate (3); The tray body (2) is provided with a placement hole (21) for placing the 96-well plate (1); The main body of the top block (4) is in an L-shaped structure, one end of the L-shaped structure is provided with an inclined portion (41), the inclined portion (41) is arranged toward the placement hole (21), and the other end of the L-shaped structure is provided with a pressing portion (43) in a columnar structure; A plurality of protrusions (42) are arranged in a staggered manner on both sides of the main body of the top block (4), and the protrusions (42) are arranged in a one-to-one correspondence with the springs (5).

2. The clamping and positioning device for an ELISA instrument as claimed in claim 1, characterized in that: The placement hole (21) is arranged to penetrate in the vertical direction, and the placement hole (21) is a rectangular structure.

3. The clamping and positioning device for an ELISA instrument as claimed in claim 2, characterized in that: The cover plate (3) is provided with a rectangular hole for detecting the passage of a light beam, and the size of the rectangular hole is smaller than the size of the placement hole (21).

4. The clamping and positioning device for an ELISA instrument as claimed in claim 1, characterized in that: A slide groove (22) for mounting the top block (4) is provided in the lower surface of the tray body (2); the slide groove (22) is located on the side of the placement hole (21); one end of the slide groove (22) is connected to a corner of the rectangular placement hole (21).

5. The clamping and positioning device for an ELISA instrument as claimed in claim 4, characterized in that: The pressing portion (43) is inserted into a sliding hole (23), the sliding hole (23) is provided at a side end of the tray body (2), and the sliding hole (23) is communicated with the sliding groove (22).

6. The clamping and positioning device for an ELISA instrument as claimed in claim 1, characterized in that: One end of the spring (5) abuts against the protruding portion (42), and one end of the spring (5) abuts against the tray body (2).

7. The clamping and positioning device for an ELISA instrument as claimed in claim 1, characterized in that: The number of the protrusions (42) and the number of the springs (5) are both three.

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