A micro-sampler fixing device

Abstract

The utility model discloses a kind of micro-injector fixing device, it is related to the technical field of experimental equipment, including accommodating portion, accommodating portion is sequentially provided with in vertical direction: support part, support part and accommodating portion fixed connection;Plug-in part, plug-in part and support part are fixedly connected away from accommodating portion;Accommodating portion, support part and plug-in part are annular structure, and the inner diameter of accommodating portion, support part and plug-in part is consistent;The outer diameter of support part is greater than the outer diameter of accommodating portion and plug-in part;The tube of sample injector is sequentially arranged in the inner cavity of accommodating portion, support part and plug-in part, and the positioning ring of sample injector is abutted to support part.The utility model design structure is reasonable, it can provide stable support positioning to sample injector, prevent sample injector from shaking in sample hole.

Description

Technical Field

[0001] This utility model relates to the technical field of experimental equipment, specifically a micro-sampler fixing device. Background Technology

[0002] Microsyringes are widely used in scientific laboratories and are an indispensable tool for accurately measuring and transferring tiny volumes of liquid. They are key equipment in fields such as chromatography, molecular biology, chemical synthesis, and drug development.

[0003] After sampling is completed, the sampler is usually placed in the corresponding support. The support has multiple sampling holes, each of which accommodates a sampler. Since there is a certain gap between the sampling hole and the sampler, the sampler cannot be placed stably in the mounting slot and will shake.

[0004] To address these issues, we provide a micro-syringe fixing device. Utility Model Content

[0005] 1) Technical problems to be solved The purpose of this invention is to overcome the shortcomings of the existing technology and provide a micro-injector fixing device.

[0006] (ii) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a micro-syringe fixing device, comprising a receiving portion, characterized in that: the receiving portion is provided with the following sequentially along the vertical direction: The support portion and the receiving portion are fixedly connected; A plug-in portion is fixedly connected to one end of the support portion away from the receiving portion; The receiving part, the supporting part, and the plug-in part are all annular structures, and the inner diameters of the receiving part, the supporting part, and the plug-in part are the same. The outer diameter of the support portion is larger than the outer diameters of the receiving portion and the insertion portion; The syringe tube is sequentially inserted into the inner cavities of the receiving part, the supporting part, and the insertion part, and the positioning ring of the syringe abuts against the supporting part.

[0007] Furthermore, the receiving portion, the supporting portion, and the insertion portion are all rubber rings.

[0008] Furthermore, the inner cavity of the support portion is evenly distributed with multiple first positioning blocks; The inner cavity of the support portion is evenly distributed with multiple second positioning blocks in the circumferential direction. Multiple third positioning blocks are evenly distributed circumferentially within the inner cavity of the insertion part; The first positioning block, the second positioning block, and the third positioning block abut against the tube body.

[0009] Furthermore, the first positioning block, the second positioning block, and the third positioning block are all hemispherical blocks, and their diameters gradually increase along the insertion direction of the tube body.

[0010] Furthermore, the first positioning block, the second positioning block, and the third positioning block are all rubber blocks.

[0011] Furthermore, the top wall of the receiving part is provided with a circular first receiving groove, and a first positioning groove is provided on the side wall of the first receiving groove.

[0012] Furthermore, the top wall of the receiving part is provided with a conical second receiving groove, and a second positioning groove is provided on the side wall of the second receiving groove.

[0013] (iii) Beneficial effects: Compared with existing technologies, this micro-syringe fixing device has the following advantages: I. This utility model, by providing a receiving part, a supporting part, and a plugging part, can seal the gap between the sample injector and the sample discharge hole, and provide stable positioning for the sample injector. Second, by setting a first positioning block, a second positioning block and a third positioning block, this utility model can provide compression to the injector from multiple directions, thereby providing stable limiting and preventing the injector from shaking. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model; Figure 3 This is a schematic diagram of the second receiving groove structure in Embodiment 3 of this utility model; Figure 4 This is a schematic diagram of the first receiving groove structure in Embodiment 3 of this utility model; Figure 5 This is a schematic diagram of the sample injector structure in this utility model.

[0015] In the figure: 1. Receiving part; 2. Supporting part; 3. Insertion part; 4. First positioning block; 5. Second positioning block; 6. Third positioning block; 7. First receiving groove; 8. Second receiving groove; 9. First positioning groove; 10. Second positioning groove; 11. Tube body; 12. Cover plate; 13. Positioning ring; 14. Connecting part. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1-5 As shown, this utility model provides a technical solution: a micro-syringe fixing device, including a receiving part 1, a supporting part 2 and a plug-in part 3.

[0018] Reference Figure 1 The receiving part 1, the support part 2 and the plug-in part 3 are all horizontally arranged, and the receiving part 1, the support part 2 and the plug-in part 3 are arranged in sequence along the vertical direction. The receiving part 1, the support part 2 and the plug-in part 3 are integrally fixedly connected.

[0019] Reference Figure 1 In this embodiment, the receiving part 1 is preferably a hollow circular ring, and the inner cavity of the receiving part 1 is used to receive the opening of the micro-sampler; Reference Figure 1 In this embodiment, the support part 2 is preferably a hollow circular ring. Here, the outer diameter of the support part 2 is larger than the outer diameter of the receiving part 1, so that the bottom wall of the support part 2 can be engaged with the top wall of each sampling hole of the sampling tray, effectively preventing the support part 2 and the receiving part 1 from falling off along the sampling hole; the inner diameter of the support part 2 is the same as the inner diameter of the receiving part 1, and the inner cavity of the support part 2 and the inner cavity of the receiving part 1 are connected, both of which can accommodate the micro-injector. Reference Figure 1 In this embodiment, the insertion part 3 is preferably a hollow circular ring. Here, the outer diameter of the insertion part 3 is smaller than the outer diameter of the support part 2, and the outer diameter of the insertion part 3 is smaller than the diameter of the sampling hole of the sampling plate, so that the insertion part 3 can extend into the sampling hole. The inner diameter of the insertion part 3 is the same as the inner diameter of the support part 2, and the inner cavities are connected. Here, the insertion part 3 can accommodate the micro-injector.

[0020] Reference Figure 1 In this embodiment, the materials of the receiving part 1, the supporting part 2 and the plugging part 3 are all rubber. Rubber is soft and easy to process, which can reduce costs.

[0021] The implementation principle of a micro-syringe fixing device is as follows: The operator holds the integrated fixedly connected receiving part 1, support part 2 and plug part 3 in his hand, and then inserts the syringe into the inner cavity of the receiving part 1, support part 2 and plug part 3 in sequence to fix the syringe. Then, the plug part 3 is inserted into the sample release hole of the sample release plate and the support plate is snapped into the support plate to fix the support device. At the same time, the syringe is also fixed.

[0022] Example 2, In this embodiment, the difference from Embodiment 1 is that the inner walls of the receiving part 1, the support part 2 and the insertion part 3 are all smooth. When the operator inserts the sampler into the inner cavity of the receiving part 1, the support part 2 and the insertion part 3, it may shake in the inner cavity, which will cause a decrease in the storage stability of the contents. Reference Figure 2 The inner cavity of the support part 2 has a plurality of first positioning blocks 4 evenly distributed circumferentially along the axial direction, and the first positioning blocks 4 are fixedly connected to the support part 2; the inner cavity of the support part 2 has a plurality of second positioning blocks 5 evenly distributed circumferentially along the axial direction, and the second positioning blocks 5 are fixedly connected to the support part 2; the inner cavity of the insertion part 3 has a plurality of third positioning blocks 6 evenly distributed circumferentially along the axial direction, and the third positioning blocks 6 are fixedly connected to the insertion part 3.

[0023] Reference Figure 2 In this embodiment, the first positioning block 4, the second positioning block 5 and the third positioning block 6 are all hemispherical blocks, and their circular surfaces fit into the mounting part.

[0024] Reference Figure 2 In this embodiment, the radii of the first positioning block 4, the second positioning block 5, and the third positioning block 6 gradually increase.

[0025] Reference Figure 2 In this embodiment, the first positioning block 4, the second positioning block 5, and the third positioning block 6 are all made of rubber.

[0026] The implementation principle of Example 2 is as follows: the first positioning block 4, the second positioning block 5, and the third positioning block 6 are respectively installed in the receiving part 1, the support part 2, and the insertion part 3. Figure 4 and Figure 5 At this time, the side wall of the injector can abut against different positioning blocks. Meanwhile, the positioning blocks are made of a certain elastic material, which can abut against the injector and fix the injector.

[0027] Example 3 In this embodiment, the difference from Embodiment 1 is that the injector consists of a tube body 11 and a cover plate 12, and a positioning ring 13 is provided at the opening of the tube body 11. Figure 4 and Figure 5A connecting part 14 is provided between the tube body 11 and the cover plate 12, where the tube body 11 and the cover plate 12 can rotate through the connecting part 14.

[0028] Reference Figure 3 , Figure 4 and Figure 5 The end face of the receiving part 1 away from the support part 2 is provided with a first receiving groove 7 or a second receiving groove 8. Here, the first receiving groove 7 is preferably a circular groove, and the second receiving groove 8 is preferably a conical groove. Both the first receiving groove 7 and the second receiving groove 8 are used to receive the positioning ring 13.

[0029] Reference Figure 3 , Figure 4 and Figure 5 The receiving part 1 is provided with a first positioning groove 9 or a second positioning groove 10 on the side wall of the first receiving groove 7. In this embodiment, the first positioning groove 9 is preferably a rectangular groove, and the second positioning groove 10 is a trapezoidal groove. Here, the first positioning groove 9 is used to receive the connecting part 14 connected to the tube body 11.

[0030] The implementation principle of Example 3 is as follows: when the operator places the injector, the positioning ring 13 can be limited by the first receiving groove 7 and the second receiving groove 8. The first positioning groove 9 and the second positioning groove 10 can position the connecting part 14. When placing the injector, the injector can be positioned to prevent the injector from rotating and improve the fixing effect. The second receiving groove 8 and the second positioning groove 10 are provided to position injectors of different sizes, thereby improving the overall applicability of the device.

Claims

1. A micro-syringe fixing device, comprising a receiving portion (1), characterized in that: The receiving part (1) is provided with the following in sequence along the vertical direction: Support (2), the support (2) and the receiving part (1) are fixedly connected; The plug-in portion (3) and the support portion (2) are fixedly connected at one end away from the receiving portion (1); The receiving part (1), the supporting part (2) and the plug-in part (3) are all annular structures, and the inner diameters of the receiving part (1), the supporting part (2) and the plug-in part (3) are the same; The outer diameter of the support part (2) is larger than the outer diameter of the receiving part (1) and the insertion part (3); The syringe tube (11) passes through the inner cavity of the receiving part (1), the support part (2) and the insertion part (3) in sequence, and the positioning ring (13) of the syringe abuts against the support part (2).

2. The micro-syringe fixing device according to claim 1, characterized in that: The receiving part (1), the supporting part (2) and the insertion part (3) are all rubber rings.

3. The micro-syringe fixing device according to claim 1, characterized in that: The inner cavity of the support part (2) is evenly distributed with a plurality of first positioning blocks (4); The inner cavity of the support part (2) is evenly distributed with a plurality of second positioning blocks (5); The inner cavity of the plug-in part (3) is evenly distributed with a plurality of third positioning blocks (6); The first positioning block (4), the second positioning block (5) and the third positioning block (6) abut against the tube body (11).

4. The micro-syringe fixing device according to claim 3, characterized in that: The first positioning block (4), the second positioning block (5) and the third positioning block (6) are all hemispherical blocks, and their diameters gradually increase along the insertion direction of the tube body (11).

5. A micro-syringe fixing device according to claim 3, characterized in that: The first positioning block (4), the second positioning block (5) and the third positioning block (6) are all rubber blocks.

6. The micro-syringe fixing device according to claim 1, characterized in that: The top wall of the receiving part (1) is provided with a circular first receiving groove (7), and a first positioning groove (9) is provided on the side wall of the first receiving groove (7).

7. A micro-syringe fixing device according to claim 6, characterized in that: The top wall of the receiving part (1) is provided with a conical second receiving groove (8), and a second positioning groove (10) is provided on the side wall of the second receiving groove (8).

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