Multi-channel test tube constant temperature device

Abstract

The utility model discloses a multichannel test tube thermostat which comprises a test tube thermostat, the test tube thermostat comprises a main machine and a machine cover, the main machine is provided with a test tube rack, the test tube rack is provided with a plurality of test tube grooves used for placing test tubes, the test tube rack is provided with limiting rings at notches of the test tube grooves, and the limiting rings are internally provided with adjusting assemblies and clamping assemblies. The clamping assembly is used for controlling the depth of the test tubes placed in the test tube rack and comprises a plurality of clamping rods, and the adjusting assembly clamps the test tubes by adjusting deflection of the clamping rods. According to the test tube rack, the test tubes are fixed through clamping, and the test tubes can be conveniently stopped at different depth positions on the test tube rack, so that the placement depth of the test tubes can be controlled according to the heat conduction efficiency of sample liquid in the test tubes, and different test tubes have the same heating condition; therefore, constant temperature control is carried out on the test tubes containing different liquids.

Description

Technical Field

[0001] This utility model relates to the field of test tube thermostat technology, and in particular to a multi-channel test tube thermostat device. Background Technology

[0002] A test tube thermostat is an experimental device that uses thermodynamic principles to control the temperature of samples inside test tubes through heating and cooling. It can be used for experiments such as cell culture, enzyme reactions, and PCR amplification. A test tube thermostat typically consists of a heating source, a temperature control device, a controller, a temperature sensor, and a test tube rack.

[0003] When using the same batch of test tubes in the same test tube thermostat, the volume of sample solution inside should be kept as consistent as possible to ensure uniform temperature distribution. However, the experiment may include different experimental or control groups, and the composition, concentration, or volume of the sample solution in each group may be different. Alternatively, when studying the effect of sample solution concentration on the reaction, it may be necessary to set up sample solutions of different concentrations for gradient experiments. Therefore, there may be cases where the sample solutions in the test tubes are not completely identical. Since the above variables will affect the heat transfer efficiency of the sample solution, it is difficult to ensure that different test tubes are heated in a consistent manner, which will affect the accuracy and stability of the experiment.

[0004] A search revealed that Chinese utility model patent CN214346566U discloses a constant temperature device for pesticide residue testing tubes, comprising a box-shaped block; multiple placement blocks, all fixedly mounted on the box-shaped block; two insulation blocks, each fixedly mounted on the inner walls of both sides of the box-shaped block; a heating rod, fixedly mounted between the two insulation blocks; a thermometer, fixedly mounted on the box-shaped block; a circular enclosure block, fixedly mounted on the top of the box-shaped block; a connecting plate, fixedly mounted on the circular enclosure block; and two welding blocks, each fixedly mounted on both sides of the circular enclosure block. This application uses placement blocks within the box-shaped block to store test tubes. However, since the placement blocks cannot limit the position of the test tubes, the depth to which the same type of test tube is placed inside is constant. If the sample solutions in different test tubes differ in composition, concentration, or volume, it is difficult to ensure that all test tubes are heated equally, thus making it inconvenient to maintain a constant temperature for test tubes containing different solutions. Utility Model Content

[0005] In view of the above-mentioned prior art, the present invention provides a multi-channel test tube constant temperature device, which mainly solves the technical problem of how to control the constant temperature of test tubes containing different liquids.

[0006] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows:

[0007] A multi-channel test tube thermostat includes a test tube thermostat, which comprises a main unit and a cover. The main unit is equipped with a test tube rack, which has several test tube slots for placing test tubes. The test tube rack has a limiting ring at the opening of the test tube slots. The limiting ring has an adjustment component and a clamping component. The clamping component is used to control the depth of the test tubes placed in the test tube rack. The clamping component includes several clamping rods. The adjustment component clamps the test tubes by adjusting the deflection of the clamping rods.

[0008] Furthermore, the limiting ring includes a top cover and a bottom shell that interlock, with an insertion port in the middle of both the top cover and the bottom shell, and several fixing posts are fixedly connected at equal intervals on the outer side of the top of the top cover.

[0009] Furthermore, a fence is fixedly connected to the outer bottom end of the top cover. The outer diameter of the fence is equal to the inner diameter of the top cover. The adjustment component includes a toothed ring, which is connected to the inner side of the fence by a key.

[0010] Furthermore, several connecting shafts are equidistantly rotatably connected to the outer side of the inner wall at the bottom end of the bottom shell. The top end of the outer side of the connecting shaft is connected to a gear by a key, and the gear meshes with a gear ring.

[0011] Furthermore, the number of connecting shafts is the same as the number of clamping rods and they correspond one-to-one. The clamping rods are fixedly connected to the bottom of the outside of the connecting shaft. The clamping rods are arc-shaped, and several protrusions are fixedly connected at equal intervals on the inner side of the clamping rods.

[0012] Furthermore, a first ring is fixedly connected to the inner wall of the bottom end of the bottom shell at the outer side of the connecting shaft, and a spring is fixedly connected between the first ring and the connecting shaft.

[0013] Furthermore, a sleeve is fixedly connected to the bottom end of the bottom shell at the outside of the socket, and several ribs are fixedly connected at equal intervals on the outside of the sleeve. The ribs and protrusions are all made of rubber.

[0014] Furthermore, a partition is fixedly connected to the inner side of the sleeve. The partition is made of latex and is in the shape of an inverted frustum. The bottom end of the partition is coated with heat-insulating paint.

[0015] Furthermore, a circular opening is provided at the bottom of the partition, and a second ring is fixedly connected to the partition at the circular opening. The second ring is made of rubber.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. After the limiting ring is installed in the test tube slot on the test tube rack, the test tube can be placed by passing it through the inside and then clamped by the clamping rod to ensure stability during the constant temperature maintenance process. The clamping method also allows the test tube to be placed at different depths on the test tube rack. Therefore, the placement depth can be controlled according to the heat transfer efficiency of the sample liquid in the test tube, so that different test tubes have the same heating conditions, thereby controlling the constant temperature of test tubes containing different liquids.

[0018] 2. By setting ribs on the outside of the sleeve and protrusions on the inside of the clamping rod, since both ribs and protrusions are made of rubber, the protrusions can increase the friction after the clamping rod holds the test tube, thereby ensuring the stability of the test tube placement, while the ribs can increase the friction after the sleeve is installed on the test tube rack, to further ensure the stability of the test tube, and thus maintain the safety of the test tube placed in this device.

[0019] 3. By setting a spacer made of latex material and a second ring made of rubber material inside the sleeve, when the test tube is inserted from the sleeve, the spacer and the second ring can adapt to the shape of the test tube through their own elasticity and can wrap around the outside of the test tube to provide a further binding and fixing effect. Attached Figure Description

[0020] Figure 1 This is a perspective view of a multi-channel test tube thermostat according to Embodiment 1 of this application;

[0021] Figure 2 This is a bottom view of the limiting ring of a multi-channel test tube thermostat device according to Embodiment 1 of this application;

[0022] Figure 3 This is a top view of the bottom shell of a multi-channel test tube thermostat according to Embodiment 1 of this application;

[0023] Figure 4 This is a top view of the first ring of a multi-channel test tube thermostat according to Embodiment 1 of this application;

[0024] Figure 5 This is a bottom view of the limiting ring of a multi-channel test tube thermostat device according to Embodiment 2 of this application.

[0025] Explanation of icon numbers:

[0026] Test tube thermostat 1, main unit 101, machine cover 102, test tube rack 2, limiting ring 3, top cover 301, fixing post 3011, fence 3012, toothed ring 3013, bottom shell 302, connecting shaft 3021, gear 3022, clamping rod 3023, protrusion 3024, first collar 3025, spring 3026, sleeve 303, rib 3031, partition 3032, second collar 3033. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the utility model.

[0028] Example 1

[0029] See attached document Figure 1-4 This application provides a multi-channel test tube thermostat device, including a test tube thermostat 1. The test tube thermostat 1 includes a main unit 101 and a cover 102. The main unit 101 is provided with a test tube rack 2. The test tube rack 2 is provided with a plurality of test tube slots for placing test tubes. The test tube rack 2 is provided with a limiting ring 3 at the opening of the test tube slot. The limiting ring 3 is provided with an adjustment component and a clamping component. The clamping component is used to control the depth of the test tubes placed into the test tube rack 2. The clamping component includes a plurality of clamping rods 3023. The adjustment component clamps the test tubes by adjusting the deflection of the clamping rods 3023.

[0030] Preferably, a sleeve 303 is fixedly connected to the bottom end of the bottom shell 302 at the outside of the socket, and a number of ribs 3031 are fixedly connected at equal intervals to the outside of the sleeve 303. The ribs 3031 and the protrusions 3024 are both made of rubber.

[0031] When using the test tube thermostat 1, the limiting ring 3 can be installed in the test tube slot on the test tube rack 2 first, and the sleeve 303 can be inserted into the test tube slot. At this time, the rib 3031 can increase the friction between the sleeve 303 and the test tube rack 2 to ensure the stable installation of the limiting ring 3.

[0032] Preferably, the limiting ring 3 includes a top cover 301 and a bottom shell 302 that interlock. Both the top cover 301 and the bottom shell 302 have insertion ports at their middle portions, which communicate with test tube slots for holding test tubes. A plurality of fixing posts 3011 are fixedly connected at equal intervals to the outer side of the top of the top cover 301. The fixing posts 3011 act as triggers for the top cover 301, meaning that the rotation of the top cover 301 is adjusted by twisting the fixing posts 3011. A fence 3012 is fixedly connected to the outer side of the bottom of the top cover 301. The outer diameter of the fence 3012 is equal to the inner diameter of the top cover 301. The adjusting assembly includes a toothed ring 3013, which is connected to the inner side of the fence 3012 by a key. Several connecting shafts 3021 are equidistantly rotatably connected to the outer side of the inner wall of the bottom end of the bottom shell 302. A gear 3022 is connected to the top of the outer side of the rod of the connecting shaft 3021 by a key. The gear 3022 meshes with the gear ring 3013.

[0033] Then, the top cover 301 can be rotated by twisting the fixing stake 3011. The top cover 301 drives the gear ring 3013 to rotate through the fence 3012. The gear ring 3013 drives the connecting shaft 3021 to rotate through the gear 3022. The rotation of the connecting shaft 3021 can cause the clamping rod 3023 to deflect. Therefore, the fixing stake 3011 can be used to adjust several clamping rods 3023 to move away from each other, that is, to make the clamping rods 3023 retract into the bottom shell 302.

[0034] Preferably, the number of connecting shafts 3021 is the same as the number of clamping rods 3023 and they correspond one-to-one. The clamping rods 3023 are fixedly connected to the bottom outer end of the connecting shaft 3021. The clamping rods 3023 are arc-shaped, and a number of protrusions 3024 are fixedly connected at equal intervals on the inner side of the clamping rods 3023. A first collar 3025 is fixedly connected to the inner wall of the bottom end of the bottom shell 302 at the outer side of the connecting shaft 3021. A spring-loaded spring 3026 is fixedly connected between the first collar 3025 and the connecting shaft 3021.

[0035] At this point, the test tube can be inserted into the test tube slot from the inside of the limiting ring 3 so that it enters the test tube rack 2. Then, the fixing post 3011 is released. At this time, the spring 3026 will cause the connecting shaft 3021 to rotate in the opposite direction through its own elasticity. Therefore, the connecting shaft 3021 can drive the clamping rod 3023 to deflect in the opposite direction and abut against the outer wall of the test tube to achieve clamping of the test tube. The protrusion 3024 can increase the friction between the clamping rod 3023 and the test tube to ensure the stability of clamping the test tube.

[0036] During this process, by adjusting the position of the clamping rod 3023 that holds the test tube, the test tube can be fixed at different depths in the test tube rack 2. Therefore, the placement depth of the test tube can be adjusted according to the thermal conductivity of the sample liquid inside the test tube to ensure that test tubes containing different sample liquids can have the same heating conditions, thereby achieving the effect of constant temperature control.

[0037] Example 2

[0038] See attached document Figure 5 This application provides a multi-channel test tube constant temperature device. Compared with embodiment 1, in order to further ensure the stability of the test tube, a partition 3032 is fixedly connected to the inner side of the sleeve 303. The material of the partition 3032 is latex, the partition 3032 is an inverted frustum shape, and the bottom end of the partition 3032 is coated with heat insulation coating.

[0039] Preferably, the bottom end of the partition 3032 has a circular opening, and a second ring 3033 is fixedly connected to the partition 3032 at the circular opening. The material of the second ring 3033 is rubber.

[0040] When the test tube is inserted into the limiting ring 3, the process of the test tube passing through the sleeve 303 will expand the second ring 3033. At this time, the second ring 3033 of rubber material and the spacer 3032 of latex material will wrap around the outside of the test tube to provide a further binding and fixing effect, thereby maintaining the stability of the test tube placement.

[0041] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model shall be determined by the protection scope of the claims.

Claims

1. A multi-channel test tube thermostat, comprising a test tube thermostat (1), wherein the test tube thermostat (1) comprises a main unit (101) and a cover (102), wherein the main unit (101) is provided with a test tube rack (2), and the test tube rack (2) is provided with a plurality of test tube slots for placing test tubes, characterized in that, The test tube rack (2) has a limiting ring (3) at the opening of the test tube slot. The limiting ring (3) has an adjustment component and a clamping component. The clamping component is used to control the depth of the test tubes placed in the test tube rack (2). The clamping component includes several clamping rods (3023). The adjustment component clamps the test tubes by adjusting the deflection of the clamping rods (3023).

2. The multi-channel test tube constant temperature device according to claim 1, characterized in that, The limiting ring (3) includes a top cover (301) and a bottom shell (302) that interlock. Both the top cover (301) and the bottom shell (302) have an insertion port in the middle. Several fixing posts (3011) are fixedly connected at equal intervals on the outer side of the top of the top cover (301).

3. The multi-channel test tube constant temperature device according to claim 2, characterized in that, A fence (3012) is fixedly connected to the outer side of the bottom end of the top cover (301). The outer diameter of the fence (3012) is equal to the inner diameter of the top cover (301). The adjustment component includes a toothed ring (3013), which is connected to the inner side of the fence (3012) by a key.

4. The multi-channel test tube constant temperature device according to claim 3, characterized in that, The bottom shell (302) has several connecting shafts (3021) rotatably connected at equal intervals on the outer side of the inner wall of the bottom end. The top end of the rod of the connecting shaft (3021) is connected to a gear (3022) by a key. The gear (3022) meshes with the gear ring (3013).

5. A multi-channel test tube constant temperature device according to claim 4, characterized in that, The number of connecting shafts (3021) is the same as the number of clamping rods (3023) and they correspond one-to-one. The clamping rods (3023) are fixedly connected to the bottom of the outside of the connecting shaft (3021). The clamping rods (3023) are arc-shaped, and several protrusions (3024) are fixedly connected at equal intervals on the inner side of the clamping rods (3023).

6. The multi-channel test tube constant temperature device according to claim 5, characterized in that, The bottom inner wall of the bottom shell (302) is fixedly connected to a first collar (3025) at the outside of the connecting shaft (3021), and a spring spring (3026) is fixedly connected between the first collar (3025) and the connecting shaft (3021).

7. The multi-channel test tube constant temperature device according to claim 5, characterized in that, The bottom end of the bottom shell (302) is fixedly connected to a sleeve (303) on the outside of the socket. Several ribs (3031) are fixedly connected at equal intervals on the outside of the sleeve (303). The ribs (3031) and the protrusions (3024) are both made of rubber.

8. A multi-channel test tube constant temperature device according to claim 7, characterized in that, A partition plate (3032) is fixedly connected to the inner side of the sleeve (303). The material of the partition plate (3032) is latex. The partition plate (3032) is in the shape of an inverted frustum. The bottom end of the partition plate (3032) is coated with heat-insulating paint.

9. A multi-channel test tube constant temperature device according to claim 8, characterized in that, The bottom end of the partition (3032) has a circular opening, and a second ring (3033) is fixedly connected to the partition (3032) at the circular opening. The material of the second ring (3033) is rubber.

Images