PCR (Polymerase Chain Reaction) sampling device

Abstract

The utility model provides a PCR (Polymerase Chain Reaction) sample adding device which comprises a test tube box, a constraint frame is arranged in the test tube box, a plurality of test tubes are arranged in the constraint frame, sliding chutes are formed in two sides of the test tube box, sliding rods are arranged in the sliding chutes, and the tops of the sliding rods are fixedly connected with a mounting plate. The device has the advantages that the mounting block is pressed down to move the feeding pipe into the test tube, meanwhile, the fading pen is in contact with the constraint frame, a mark capable of automatically fading is left on the constraint frame, the mounting block is loosened after a sample is added into the test tube by the feeding pipe, and the fading pen moves upwards to be separated from the limiting frame. Then the connecting block or the sliding rod is moved according to needs, the position of the feeding pipe is adjusted, and samples are added to other test tubes. The color fading pen is used for carrying out color fading marking on the limiting frame near the test tubes subjected to sample adding, so that a worker can determine which test tubes have been subjected to sample adding within a period of time, the marking effect is more obvious, and the sample adding work can be better assisted.

Description

Technical Field

[0001] The utility model relates to the technical field of PCR detection, in particular to a PCR sample adding device. Background Art

[0002] PCR, also known as polymerase chain reaction, is a molecular biology technology used to quickly and efficiently amplify specific DNA fragments. It can be seen as a special DNA replication outside the body. The biggest feature of PCR is that it can significantly increase trace amounts of DNA.

[0003] For example, a PCR loading device with publication number CN220564607U manually moves the first movable frame and the second movable frame, and the first movable frame and the second movable frame slide stably along the guide rod in the slide slot through the slider, so that the upper and lower overlapping marking holes correspond to the upper and lower positions of the current loading test tube, so as to mark the current loading test tube, thereby eliminating the need for staff to always remember the loading position, preventing staff from misreading the loading position, and avoiding the situation of adding or missing. However, when recording the loading position by this method, when the loading is restarted after an interruption, there is a situation where the loading direction is remembered incorrectly, and the recording effect is not obvious enough. For this reason, a PCR loading device is proposed for improvement. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the present invention is to provide a PCR sample adding device to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, an embodiment of the utility model provides a PCR sample loading device, including a test tube box, a constraint frame is arranged in the test tube box, a plurality of test tubes are arranged in the constraint frame, slide grooves are opened on both sides of the test tube box, a sliding rod is arranged in the slide groove, a mounting plate is fixedly connected to the top of the sliding rod, and a movable groove is opened in the mounting plate;

[0007] A slide plate is movably connected in the movable groove, a ball bearing is arranged at the bottom of the slide plate, a connecting block is fixedly connected to the bottom surface of the slide plate, a mounting groove is provided on the bottom surface of the connecting block, a plug rod is inserted in the mounting groove, a mounting block is fixedly connected to the bottom end of the plug rod, a spring is arranged between the mounting block and the connecting block, a feeding tube is arranged on the mounting block, and a fading pen is arranged on the side of the feeding tube.

[0008] Preferably, any of the above schemes is that the constraint frame has two layers, an upper layer and a lower layer, and a writing board is provided on the top surface of the upper constraint frame, and the constraint frame is fixedly connected in the test tube box.

[0009] Preferably, any of the above solutions is that the test tubes are evenly arranged in the constraint frame, and the sliding rod is provided with a balance plate at the top of the slide groove.

[0010] The above technical solution is adopted: the test tube box provides a placement space for the test tube. The constraint frame provides constraints for the test tube to ensure the stability of the test tube and keep the test tube in a vertical state. The upper and lower constraint frames can constrain the upper and lower positions of the test tube to ensure the balance of the test tube. The slide groove provides a movable space for the sliding rod, and the slide groove constrains the sliding rod to prevent the sliding rod from moving in other directions. The sliding rod provides a mounting platform for the mounting plate and can drive the mounting plate to move.

[0011] Preferably, any of the above schemes is that the movable groove adopts a T-shaped structure, and there are a plurality of balls which are evenly arranged on the bottom surface of the slide plate.

[0012] Preferably, any of the above solutions includes: the connecting plate extending to the outside of the movable groove, and the mounting groove adopts an inverted T-shaped structure.

[0013] The above technical solution is adopted: a moving groove is provided on the mounting plate to provide a movable space for the slide, and the ball bearings provided on the bottom of the slide can assist the slide to move. The connecting block provides a mounting platform for the mounting block, and drives the mounting block to move along the length direction of the mounting plate with the slide. The mounting plate can move along the length direction of the slide in the slide groove, so that the mounting block can move in both horizontal and vertical directions.

[0014] Preferably, in any of the above schemes, the spring is sleeved on the insertion rod, and the width of the mounting block is greater than the width of the mounting groove.

[0015] Preferably, any of the above schemes has a bottom end of the fading pen lower than a bottom end of the feeding tube.

[0016] The above technical solution is adopted: the mounting block is connected to the bottom surface of the connecting block through a spring and a plug rod, so that it can move vertically for a certain distance with the cooperation of the spring. Press down the mounting block to move the feeding tube into the test tube. At the same time, the fading pen contacts the constraint frame and leaves a mark on it that can automatically fade. After the feeding tube adds the sample into the test tube, the mounting block is released, and the fading pen moves up and out of the limit frame. Then move the connecting block or the sliding rod as needed to adjust the position of the feeding tube and add samples to other test tubes.

[0017] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0018] 1. The PCR loading device is provided with a constraint frame, a test tube, a connecting block, a mounting groove, a plug rod, a spring, a mounting block, a fading pen and other structures. When loading samples, the mounting block is pressed down to move the feeding tube into the test tube. At the same time, the fading pen contacts the constraint frame and leaves a mark thereon that can automatically fade. After the feeding tube adds the sample into the test tube, the mounting block is released, and the fading pen moves up and leaves the limit frame. Then, the connecting block or the sliding rod is moved as needed to adjust the position of the feeding tube and load samples to other test tubes. The fading pen makes a fading mark on the limit frame near the loaded test tube, so that the staff can know which test tubes have completed loading within a period of time. The marking effect is more significant and can better assist the loading work.

[0019] 2. The PCR sample adding device is provided with a constraint frame, which provides constraints for the test tube, ensures the stability of the test tube, and keeps the test tube in a vertical state. The upper and lower constraint frames can constrain the upper and lower positions of the test tube to ensure the balance of the test tube. A writing board is provided on the top surface of the upper constraint frame to make the mark of the fading pen clearer and more obvious.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the cutaway structure of the utility model;

[0024] Figure 3 For the utility model Figure 2 Schematic diagram of the structure at A in the middle.

[0025] In the figure: 1-test tube box, 2-constraint frame, 3-test tube, 4-slide groove, 5-slide rod, 6-mounting plate, 7-moving groove, 8-slide plate, 9-ball, 10-connecting block, 11-mounting groove, 12-insertion rod, 13-mounting block, 14-spring, 15-feeding tube, 16-fading pen. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figures 1 to 3 As shown, the utility model comprises a test tube box 1, a constraint frame 2 is arranged in the test tube box 1, a plurality of test tubes 3 are arranged in the constraint frame 2, slide grooves 4 are provided on both sides of the test tube box 1, a sliding rod 5 is provided in the slide groove 4, a mounting plate 6 is fixedly connected to the top of the sliding rod 5, and a moving groove 7 is provided in the mounting plate 6;

[0029] A slide plate 8 is movably connected in the movable groove 7, a ball bearing 9 is arranged at the bottom of the slide plate 8, a connecting block 10 is fixedly connected to the bottom surface of the slide plate 8, a mounting groove 11 is provided on the bottom surface of the connecting block 10, a plug rod 12 is inserted in the mounting groove 11, a mounting block 13 is fixedly connected to the bottom end of the plug rod 12, a spring 14 is arranged between the mounting block 13 and the connecting block 10, a feeding tube 15 is arranged on the mounting block 13, and a fading pen 16 is arranged on the side of the feeding tube 15.

[0030] Embodiment 1: The constraint frame 2 has an upper and lower layer, and a writing board is provided on the top surface of the upper constraint frame 2, and the constraint frame 2 is fixedly connected to the test tube box 1. The test tubes 3 are evenly arranged in the constraint frame 2, and the sliding rod 5 is provided with a balance board at the top of the slide 4. The test tube box 1 provides a placement space for the test tubes 3. The constraint frame 2 provides constraints for the test tubes 3 to ensure the stability of the test tubes 3 and keep the test tubes 3 in a vertical state. The upper and lower constraint frames 2 can constrain the upper and lower positions of the test tubes 3 to ensure the balance of the test tubes 3. The slide 4 provides a movable space for the sliding rod 5, and the slide 4 constrains the sliding rod 5 to prevent the sliding rod 5 from being displaced in other directions. The sliding rod 5 provides an installation platform for the mounting plate 6 and can drive the mounting plate 6 to move.

[0031] Embodiment 2: The movable groove 7 adopts a T-shaped structure, and there are several balls 9 that are evenly arranged on the bottom surface of the slide plate 8. The connecting plate 10 extends to the outside of the movable groove 7, and the mounting groove 11 adopts an inverted T-shaped structure. The movable groove 7 is provided on the mounting plate 6 to provide a movable space for the slide plate 8, and the balls 9 arranged on the bottom surface of the slide plate 8 can assist the slide plate 8 to move. The connecting block 10 provides a mounting platform for the mounting block 13, and drives the mounting block 13 to move along the length direction of the mounting plate 6 with the slide plate 8. In combination with the mounting plate 6, the mounting block 13 can be displaced in the slide groove 4 along the length direction of the slide groove 4, so that the mounting block 13 can be displaced in both the horizontal and vertical directions.

[0032] Embodiment 3: The spring 14 is sleeved on the insertion rod 12, and the width of the mounting block 13 is greater than the width of the mounting groove 11. The bottom end of the fading pen 16 is lower than the bottom end of the feeding tube 15. The mounting block 13 is connected to the bottom surface of the connecting block 10 through the spring 14 and the insertion rod 12, so that it can be vertically displaced a certain distance with the cooperation of the spring 14. Press down the mounting block 13 to move the feeding tube 15 into the test tube 3. At the same time, the fading pen 16 contacts the constraint frame 2 and leaves a mark thereon that can automatically fade. After the feeding tube 15 adds the sample to the test tube 3, the mounting block 13 is released, and the fading pen 16 moves up and out of the limit frame 2. Then, move the connecting block 10 or the sliding rod 5 as needed, adjust the position of the feeding tube 15, and add samples to other test tubes 3.

[0033] The working principle of the utility model is as follows:

[0034] S1, press down the mounting block 13 to move the feeding tube 15 into the test tube 3;

[0035] S2, the fading pen 16 contacts the constraint frame 2 and leaves a mark thereon that can automatically fade, the feeding tube 15 adds the sample into the test tube 3, and then the mounting block 13 is released, and the fading pen 16 moves upward and leaves the limiting frame 2;

[0036] S3. Move the connecting block 10 or the sliding rod 5 as needed, adjust the position of the feeding tube 15, and add samples to other test tubes 3.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] 1. The PCR sample loading device is provided with a constraint frame 2, a test tube 3, a connecting block 10, a mounting groove 11, a plug rod 12, a spring 14, a mounting block 13, a fading pen 16 and other structures. When loading, the mounting block 13 is pressed down to move the feeding tube 15 into the test tube 3. At the same time, the fading pen 16 contacts the constraint frame 2 and leaves a mark that can automatically fade thereon. After the feeding tube 15 adds the sample into the test tube 3, the mounting block 13 is released, and the fading pen 16 moves up and leaves the limiting frame 2. Then, the connecting block 10 or the sliding rod 5 is moved as needed to adjust the position of the feeding tube 15, and other test tubes 3 are loaded. The fading pen 16 makes a fading mark on the limiting frame 2 near the loaded test tube 3, so that the staff can know which test tubes 3 have completed loading within a period of time. The marking effect is more significant, which can better assist the loading work.

[0039] 2. The PCR sample loading device is provided with a constraint frame 2, which provides constraints for the test tube 3 to ensure the stability of the test tube 3 and keep the test tube 3 in a vertical state. The upper and lower constraint frames 2 can constrain the upper and lower positions of the test tube 3 to ensure the balance of the test tube 3. A writing board is provided on the top surface of the upper constraint frame 2 to make the mark of the fading pen 16 clearer and more obvious.

Claims

1. A PCR sample loading device, comprising a test tube box (1); characterized in that: The test tube box (1) is provided with a restraining frame (2), a plurality of test tubes (3) are provided in the restraining frame (2), two sides of the test tube box (1) are provided with sliding grooves (4), a sliding rod (5) is provided in the sliding grooves (4), a mounting plate (6) is fixedly connected to the top of the sliding rod (5), and a moving groove (7) is provided in the mounting plate (6); A slide plate (8) is movably connected in the movable groove (7), a ball bearing (9) is arranged at the bottom of the slide plate (8), a connecting block (10) is fixedly connected to the bottom surface of the slide plate (8), a mounting groove (11) is provided on the bottom surface of the connecting block (10), an insertion rod (12) is inserted in the mounting groove (11), a mounting block (13) is fixedly connected to the bottom end of the insertion rod (12), a spring (14) is arranged between the mounting block (13) and the connecting block (10), a feeding pipe (15) is arranged on the mounting block (13), and a fading pen (16) is arranged on the side of the feeding pipe (15).

2. A PCR sample loading device as claimed in claim 1, characterized in that: The constraint frame (2) has two layers, an upper layer and a lower layer, and a writing board is arranged on the top surface of the upper constraint frame (2). The constraint frame (2) is fixedly connected in the test tube box (1).

3. A PCR sample loading device as claimed in claim 2, characterized in that: The test tubes (3) are evenly arranged in the constraint frame (2), and the sliding rod (5) is provided with a balance plate at the top of the slide groove (4).

4. A PCR sample loading device as claimed in claim 3, characterized in that: The movable groove (7) adopts a T-shaped structure, and there are a plurality of balls (9) which are evenly arranged on the bottom surface of the slide plate (8).

5. A PCR sample loading device as claimed in claim 4, characterized in that: The connection block (10) extends to the outside of the movable groove (7), and the installation groove (11) adopts an inverted T-shaped structure.

6. A PCR sample loading device as claimed in claim 5, characterized in that: The spring (14) is sleeved on the insertion rod (12), and the width of the installation block (13) is greater than the width of the installation groove (11).

7. A PCR sample loading device as claimed in claim 6, characterized in that: The bottom end of the fading pen (16) is lower than the bottom end of the feeding tube (15).

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