Positioning injection instrument

Abstract

The utility model discloses a positioning injection instrument, which relates to the field of liquid positioning injection and comprises a fixed seat, a driving mechanism is arranged at the top of the fixed seat, the driving mechanism is connected with a movable frame, an injection mechanism is mounted at the top of the movable frame, and one end of the injection mechanism is communicated with different liquid containers. The driving mechanism drives the movable frame to move along the upper portion of the test tube rack, the injection mechanism extracts reagents in different liquid containers and adds the reagents into test tubes of the test tube rack, the corresponding reagents can be added into the corresponding test tubes without manual adding, the accuracy is higher, meanwhile, the test tube rack is fixed to the top of the mounting base through pressing, and the test tube rack is convenient to use. When the test tube rack needs to be disassembled, a handle is pressed, so that a connecting rod pulls the clamping block to move outwards and extrudes the spring, the clamping block relieves the fixation of the test tube rack, and at the moment, the test tube rack can be taken out, and the test tube rack is more convenient to replace.

Description

Technical Field

[0001] The utility model relates to the field of liquid positioning injection, in particular to a positioning injection instrument. Background Art

[0002] In the current reagent analysis process, it is often necessary to add different liquids to different test tubes. For example, in the PCR process, primers, substrates, enzymes and buffers need to be added to another test tube. At the same time, three parallel experiments need to be performed to effectively analyze the status of the reagents through the status of the reagents in different test tubes.

[0003] However, in the actual sampling and analysis process, different test tubes on the test tube rack need to contain different reagents, and experimenters often add the wrong test tubes, causing the state of the samples in the test tubes to change during the experiment, which in turn leads to erroneous experimental results. Although some machine sampling can achieve automatic sampling, it only samples a small number of test tubes. When the number of test tubes to be sampled increases, the test tube rack needs to be replaced continuously for sampling. The test tube rack is fixed on the machine. In order to maintain its stability, it generally needs to be fixed with tooling, and it is inconvenient to disassemble and replace. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a positioning injection instrument to solve the technical problems that during the reagent analysis process, experimenters often add wrong test tubes and the machine sampling efficiency is not high for large quantities of test tubes.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning injection instrument, comprising a fixed seat, a driving mechanism is arranged on the top of the fixed seat, the driving mechanism is connected to a movable frame, an injection mechanism is installed on the top of the movable frame, one end of the injection mechanism is connected to different liquid containers, a mounting seat is arranged on the top of the fixed seat, a test tube rack is arranged on the top of the mounting seat, a card block is arranged inside the mounting seat, a plurality of springs are arranged on one side of the card block, a connecting rod is rotatably arranged on one side of the card block, and a handle is connected to one end of the connecting rod.

[0006] The utility model is further configured that a positioning block is arranged at the bottom of the test tube rack, and a side wall of the positioning block is provided with a limiting groove which matches the shape and size of the clamping block.

[0007] The utility model is further configured that a card slot is provided inside the mounting seat, and a slope is provided on the surface of the card block.

[0008] The utility model is further configured such that the interior of the mounting seat is a hollow structure, a rotating shaft is provided inside the mounting seat, and one end of the connecting rod is rotatably connected to the rotating shaft.

[0009] The utility model is further configured that the driving mechanism is a synchronous belt driving structure.

[0010] In summary, the utility model mainly has the following beneficial effects: the utility model drives the movable frame to move along the top of the test tube rack through the driving mechanism, and the injection mechanism extracts reagents from different liquid containers and adds them to the test tubes of the test tube rack, so that the corresponding test tubes can be added with corresponding reagents without manual addition, and the accuracy is higher. At the same time, the test tube rack is fixed to the top of the mounting seat by pressing, and the test tube rack is fixed by the clamping block and the spring. When the test tube rack needs to be disassembled, the handle is pressed to make the connecting rod pull the clamping block to move outward, and squeeze the spring to make the clamping block release the fixation of the test tube rack. At this time, the test tube rack can be taken out, and the replacement of the test tube rack is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front cross-sectional view of the utility model;

[0012] Figure 2 It is a schematic diagram of the connection between the driving mechanism and the movable frame of the utility model;

[0013] Figure 3 It is a top view of the mounting base and the test tube rack of the utility model;

[0014] Figure 4 This is a cross-sectional view of the internal structure of the mounting seat of the utility model;

[0015] Figure 5 It is a cross-sectional view of the internal structure of the card block of the utility model.

[0016] In the figure: 1. fixed seat; 2. mounting seat; 3. test tube rack; 4. driving mechanism; 5. movable frame; 6. injection mechanism; 7. clamping block; 8. clamping slot; 9. spring; 10. positioning block; 11. connecting rod; 12. handle; 13. rotating shaft. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0018] The following describes an embodiment of the utility model based on its overall structure.

[0019] A positioning injection device, such as Figure 1-5 As shown, it includes a fixed base 1, a driving mechanism 4 is arranged on the top of the fixed base 1, the driving mechanism 4 is a synchronous belt driving structure, the driving mechanism 4 is connected to a movable frame 5, and the synchronous belt structure is driven by a motor to rotate, so that the movable frame 5 moves forward and backward accordingly.

[0020] An injection mechanism 6 is installed on the top of the movable frame 5, and one end of the injection mechanism 6 is connected to different liquid containers. The driving mechanism 4 and the injection mechanism 6 are controlled by the control center. The control center sends a signal to control the driving mechanism 4 to move, driving the movable frame 5 to move synchronously, so that the injection mechanism 6 above it reaches the position of the corresponding test tube rack 3, and the test tubes inside the test tube rack 3 are sampled. The test tubes inside the test tube rack 3 are numbered and correspond to the positioning numbers of the control center, so as to achieve accurate sample addition to the test tubes inside the test tube rack 3.

[0021] A mounting seat 2 is arranged on the top of the fixing seat 1, a test tube rack 3 is arranged on the top of the mounting seat 2, a clamping block 7 is arranged inside the mounting seat 2, a plurality of springs 9 are arranged on one side of the clamping block 7, a connecting rod 11 is rotatably arranged on one side of the clamping block 7, one end of the connecting rod 11 is connected with a handle 12, the test tube rack 3 is fixed to the top of the mounting seat 2 by pressing, the test tube rack 3 is fixed by the clamping block 7 in cooperation with the spring 9, the interior of the mounting seat 2 is a hollow structure, a rotating shaft 13 is arranged inside the mounting seat 2, and one end of the connecting rod 11 is rotatably connected with the rotating shaft 13, when the test tube rack 3 needs to be disassembled, the handle 12 is pressed to rotate the connecting rod 11 around the rotating shaft 13, at this time the connecting rod 11 pulls the clamping block 7 to move outward and squeezes the spring 9 to release the clamping block 7 from fixing the test tube rack 3.

[0022] A positioning block 10 is provided at the bottom of the test tube rack 3, and a side wall of the positioning block 10 is provided with a limiting groove that matches the shape and size of the clamping block 7. A clamping groove 8 is provided inside the mounting seat 2, and a slope is provided on the surface of the clamping block 7. When the test tube rack 3 needs to be installed, it is only necessary to squeeze the clamping block 7 with the positioning block 10 at the bottom of the test tube rack 3. The slope on the clamping block 7 cooperates with the positioning block 10, and the positioning block 10 can be squeezed into the clamping groove 8. As the positioning block 10 descends, until the clamping block 7 enters the limiting groove under the action of the spring 9, the test tube rack 3 and the positioning block 10 are fixed.

[0023] Working principle: The movable frame 5 is driven by the driving mechanism 4 to move along the top of the test tube rack 3, and the injection mechanism 6 extracts reagents from different liquid containers and adds them to the test tubes of the test tube rack 3. The corresponding reagents can be added to the corresponding test tubes without manual addition, and the accuracy is higher. At the same time, the test tube rack 3 is fixed to the top of the mounting seat 2 by pressing, and the test tube rack 3 is fixed by the clamping block 7 and the spring 9. When the test tube rack 3 needs to be disassembled, the handle 12 is pressed to make the connecting rod 11 pull the clamping block 7 to move outward, and squeeze the spring 9 to release the clamping block 7 from fixing the test tube rack 3. At this time, the test tube rack 3 can be taken out, and it is more convenient to replace the test tube rack 3.

[0024] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

Claims

1. A positioning injection device, comprising a fixing seat (1), characterized in that: A driving mechanism (4) is arranged on the top of the fixed seat (1), the driving mechanism (4) is connected to a movable frame (5), an injection mechanism (6) is installed on the top of the movable frame (5), one end of the injection mechanism (6) is connected to different liquid containers, a mounting seat (2) is arranged on the top of the fixed seat (1), a test tube rack (3) is arranged on the top of the mounting seat (2), a clamping block (7) is arranged inside the mounting seat (2), a plurality of springs (9) are arranged on one side of the clamping block (7), a connecting rod (11) is rotatably arranged on one side of the clamping block (7), and one end of the connecting rod (11) is connected to a handle (12).

2. A positioning injection instrument according to claim 1, characterized in that: A positioning block (10) is provided at the bottom of the test tube rack (3), and a side wall of the positioning block (10) is provided with a limiting groove that matches the shape and size of the clamping block (7).

3. A positioning injection instrument according to claim 1, characterized in that: A card slot (8) is provided inside the mounting seat (2), and a slope is provided on the surface of the card block (7).

4. A positioning injection instrument according to claim 1, characterized in that: The interior of the mounting seat (2) is a hollow structure, a rotating shaft (13) is provided inside the mounting seat (2), and one end of the connecting rod (11) is rotatably connected to the rotating shaft (13).

5. A positioning injection instrument according to claim 1, characterized in that: The driving mechanism (4) is a synchronous belt driving structure.

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