Test tube placing rack

Abstract

The utility model provides a test tube placing rack. The test tube placing rack mainly comprises a placing rack body, a test tube placing assembly, a control assembly, a support and a driving device. The support is provided with a vertical frame and a dropper on one side of the top. The placing frame is installed on the support, and a sliding groove is formed in the placing frame. The test tube placing assembly is installed in the sliding groove in a sliding mode, the test tube placing assembly is provided with a vertical area and an inclined area, and test tubes in the vertical area and the inclined area are in a vertical state and an inclined state respectively; the driving device is connected with the test tube placing assembly and drives the test tube placing assembly to move along the sliding groove, so that the opening of the test tube in the vertical area or the inclined area is located under the dropper. The test tube placing assembly can be used for placing two groups of vertical and inclined test tubes in different states at the same time, automatic medicament injection can be realized no matter the test tubes are vertically placed or the test tubes are obliquely placed through the elastic switch and the contact switch, manual operation of an experimenter is reduced, and the experiment efficiency is improved. The experiment efficiency is improved, and misoperation is effectively avoided.

Description

Technical Field

[0001] This utility model relates to medical testing instruments, specifically a test tube rack. Background Technology

[0002] A test tube rack is a specialized instrument used in chemical experiments, its main function being to provide an orderly space for test tubes. In laboratories, test tube racks are typically arranged at an angle or vertically for ease of management and use. An angled rack is primarily used to drain moisture from inverted test tubes, ensuring the inside of the tubes is dry and clean. A vertical rack, on the other hand, facilitates observation of the reactions within the test tubes, allowing the experimenter to more clearly see the changes.

[0003] In chemical experiments, test tubes often need to be filled with various additives and then tilted to observe the internal reactions. This operation is very common in chemical experiments. For example, in acid-base color change experiments, the solution in the test tube will change color due to changes in acidity or alkalinity. By tilting the test tube rack, this change process can be observed more directly.

[0004] However, most test tube racks currently on the market are manually operated and lack automation. This means that experimenters need to manually add additives and manually tilt the rack to observe the reaction. While this manual operation meets experimental needs to some extent, in some cases, it can lead to low experimental efficiency and may even affect the accuracy of experimental results due to improper operation.

[0005] Therefore, there is an urgent need in the market for a test tube rack that can automatically add additives and automatically tilt and place test tubes. Utility Model Content

[0006] This invention provides a test tube rack that can greatly improve experimental efficiency, reduce human error, and make the experimental process more precise and efficient. Through the application of automation technology, experimenters can focus more on the analysis of experimental data and the interpretation of experimental results, thereby promoting the further development of chemical experimental research. The specific solution is as follows:

[0007] A test tube rack, the test tube rack comprising:

[0008] The support frame has a vertical frame, and a dropper is installed on one side of the top of the vertical frame;

[0009] The display rack is mounted on a support frame and has a sliding groove on its upper surface.

[0010] The test tube placement assembly is slidably installed in the slide groove. The test tube placement assembly has a vertical area and an inclined area. Each vertical area and the inclined area has at least one test tube slot. The test tubes placed in the test tube slots in the vertical area and the inclined area are in vertical and inclined states, respectively.

[0011] The driving device is connected to the test tube placement assembly. The driving device drives the test tube placement assembly to move along the slide, so that the openings of the test tubes placed in the vertical or inclined areas pass directly below the dropper in sequence.

[0012] Furthermore, a tilting turning zone is provided between the vertical zone and the tilting zone, and the tilting turning zone is provided with a test tube slot.

[0013] Furthermore, the test tube placement assembly includes several sets of test tube placement blocks, with a test tube slot located in the center of the top of each block.

[0014] The test tube placement blocks are horizontally perforated with through holes. Several sets of test tube placement blocks are connected in series by passing elastic ropes through the through holes to form a test tube placement assembly.

[0015] Furthermore, the chute and test tube placement components are strip-shaped or ring-shaped.

[0016] Furthermore, a rubber layer is bonded to the outside of each test tube placement block;

[0017] The drive unit consists of rollers, driven wheels, belts and motors. The rollers and driven wheels are installed at intervals on the same side of the placement frame. The output end of the motor is fixedly installed with rollers. The rollers and driven wheels are connected by belt drive. The belt and the rubber layer roll and rub together. The rotating belt drives the test tube placement assembly to slide along the direction of the slide.

[0018] Furthermore, the bracket includes a mounting base that is fixedly connected to the bottom of the vertical frame;

[0019] A dropper holder is fixedly installed on the top of the vertical frame to hold the dropper. An additive container is installed on the dropper holder. The additive container is equipped with a miniature pump. The top of the dropper has a connection port, which is connected to the additive container through a delivery pipeline.

[0020] Furthermore, the bottom of the test tube placement block is provided with a stepped through hole that connects to the test tube slot;

[0021] The test tube rack also includes a control component connected to the drive unit and the micro pump body. The control component includes a control circuit, an elastic switch located in the stepped through hole, and a contact switch located in the rack.

[0022] The elastic switch includes a plastic rod that passes through a stepped through hole. One end of the plastic rod, located inside the test tube slot, is connected to an arc-shaped pad. The other end of the plastic rod is provided with a metal plate. A baffle is fixed to the inner wall of the stepped through hole between the arc-shaped pad and the metal plate. A spring is sleeved on the plastic rod between the baffle and the arc-shaped pad.

[0023] The contact switch includes a switch connecting piece located at the bottom of the slide and directly below the dropper; the switch connecting piece is connected to the control circuit.

[0024] When the metal sheet comes into contact with the switch connecting piece, it creates a circuit that triggers the control circuit. The control circuit then shuts down the drive unit and starts the micro pump.

[0025] Furthermore, the metal sheet has an upwardly bent flipping surface at both ends in the sliding direction.

[0026] The switch connecting piece has two downward-bent flip surfaces at both ends in the sliding direction.

[0027] The advantages of this utility model are:

[0028] 1. The test tube placement assembly can simultaneously hold two sets of test tubes in different positions, vertical and tilted, to meet various experimental needs;

[0029] 2. By using the flexible switch and contact switch, the test tube can be automatically stopped when it is moved under the dropper and the reagent is injected by the dropper. Whether the test tube is placed vertically or tilted, the reagent injection can be automated, reducing manual operation by the experimenter, improving experimental efficiency and effectively avoiding misoperation.

[0030] 3. When the test tube placement block passes under the dropper without load, the elastic switch will not be activated because it is not compressed by the test tube above. This ensures that the unloaded test tube placement block will not stop when passing under the dropper until the next test tube placement block with an inserted test tube triggers the contact switch and stops the experiment, thus improving the efficiency of the experiment.

[0031] 4. The design of the test tube rack makes it space-saving and easy to place flexibly in the laboratory, while ensuring the stability and safety of the test tubes.

[0032] 5. Easy to maintain: The components of the test tube rack are designed to be simple, easy to disassemble and clean, ensuring long-term reliability.

[0033] In summary, the test tube rack of this invention not only improves the efficiency and accuracy of chemical experiments, but also has the advantages of being easy to operate and safe and reliable, making it very suitable for use in various chemical experiments. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of a test tube rack.

[0036] Figure 2 This is a top view of a test tube rack;

[0037] Figure 3 This is a schematic diagram showing the connection between the drive device and the test tube placement assembly in a test tube placement rack.

[0038] Figure 4 This is a top view of the test tube rack in Embodiment 1;

[0039] Figure 5 A schematic diagram showing the connection between an elastic cord and a through hole in a test tube rack;

[0040] Figure 6 A schematic diagram of the control components in a test tube rack;

[0041] Figure 7 This is a schematic diagram showing the connection between a metal plate and a switch connecting plate in a test tube rack.

[0042] Figure 8 This is a top view of embodiment 2 of a test tube rack.

[0043] Explanation of reference numerals in the attached figures:

[0044] 100, vertical area 110, tilting area 120, tilting and turning area 130, test tube placement assembly 200, test tube placement block 210, test tube slot 220, through hole 230, elastic rope 240, stepped through hole 250, rubber layer 260, plastic rod 310, arc-shaped pad 320, spring 330, baffle 340, metal sheet 350, flip surface one 351, switch connecting piece 360, flip surface two 361, bracket 400, additive medicine container 410, connection port 420, dropper 430, base 440, drive device 500. Detailed Implementation

[0045] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0046] To fully understand this utility model, detailed steps and structures will be presented in the following description to illustrate the technical solution of this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0047] Example 1

[0048] Reference Figure 1-7 As shown, this utility model provides a test tube rack, which mainly includes a rack 100, a test tube placement component 200, a control component 300, a support 400, and a drive device 500.

[0049] Bracket 400

[0050] like Figure 1 As shown, the bracket 400 includes a mounting base 440 and a vertical section 110 mounted on top of the mounting base 440. A dropper holder for fixing a dropper 430 is mounted on one side of the top of the vertical section 110. An additive medicine container 410 is mounted on the dropper holder, and the additive medicine container 410 is equipped with a micro-pump. The top of the dropper 430 has a connection port 420, which is connected to the additive medicine container 410 via a delivery pipeline. The additive medicine container 410 can automatically deliver medicine to the dropper 430 via the micro-pump.

[0051] Display shelf 100

[0052] like Figure 1-4 As shown, the placement rack 100 is mounted on the bracket 400. The upper surface of the placement rack 100 is provided with an annular groove, one end of which is located directly below the dropper 430.

[0053] Test tube placement assembly 200

[0054] like Figure 2-5As shown, the test tube placement assembly 200 is slidably installed in a groove. The assembly has a vertical area 110 and an inclined area 120, with a transitional inclined turning area 130 between them. Both the vertical and inclined areas 110 and 120 have several test tube placement blocks 210, and the inclined turning area 130 has one block. Each block 210 has a test tube slot 220 at its top center. Test tubes placed in the slots 220 of the vertical area 110 are in a vertical position, while those in the inclined area 120 are in an inclined position. The orientation of the test tubes in the slots 220 of the inclined turning area 130 can be determined as needed, either vertically or inclined. By controlling the opening angle of the test tube slots 220 in the vertical zone 110, the inclined zone 120, and the inclined turning zone 130, the test tube opening inserted at the top of the test tube placement block 210 is located directly below the dropper 430, regardless of whether the test tube placement block 210 in the vertical zone 110 or the inclined zone 120 passes below the dropper 430.

[0055] Each test tube placement block 210 has a through hole 230 extending horizontally through both sides. All the test tube placement blocks 210 are connected in series by passing through the through holes 230 with an elastic rope 240 to form a test tube placement assembly 200 that can rotate in the slide groove of the placement rack 100.

[0056] In an optional embodiment, the test tube placement block 210 is a fan-shaped block, which can better match the annular groove and slide within it. A rubber layer 260 is bonded to the outside of each test tube placement block 210. In addition, the bottom of the test tube placement block 210 is provided with an inverted "T"-shaped stepped through hole 250 that connects to the test tube slot 220.

[0057] Drive unit 500

[0058] like Figure 1 As shown, the drive device 500 consists of rollers, driven wheels, belts and motors. The rollers and driven wheels are installed at intervals on the same side of the placement frame 100. The output end of the motor is fixedly installed with rollers. The rollers and driven wheels are connected by belt drive. The belt and the rubber layer 260 roll and rub together, thereby realizing the sliding of the test tube placement assembly 200 along the slide direction by the rotating belt.

[0059] Control component 300

[0060] like Figure 6-7 As shown, the control component 300 is connected to the drive device 500, and the control component 300 includes a control circuit, a flexible switch, and a contact switch.

[0061] The elastic switch includes a plastic rod 310 that passes through a stepped through hole 250. One end of the plastic rod 310 located in the test tube slot 220 is connected to a recessed arc-shaped pad 320. The other end of the plastic rod 310 is provided with a metal sheet 350. The inner wall of the stepped through hole 250 is provided with a baffle 340 located between the arc-shaped pad 320 and the metal sheet 350. The plastic rod 310 is fitted with a spring 330 located between the baffle 340 and the arc-shaped pad 320.

[0062] The contact switch includes a switch connecting piece 360 ​​located at the bottom of the slide of the placement rack 100 and directly below the dropper 430. The switch connecting piece 360 ​​is an open circuit switch connected to the control circuit. The control circuit is connected to the drive device 500. When the metal piece 350 contacts the switch connecting piece 360, the switch connecting piece 360 ​​forms a circuit. After receiving the electrical signal, the control circuit promptly shuts off the motor rotation of the drive device and then starts the micro pump of the additive container 410 to deliver the additive to the dropper 430.

[0063] When the test tube is inserted into the test tube slot 220, the test tube slot 220 presses down on the arc-shaped pad 320, causing the plastic rod 310 to overcome the resistance of the spring 330 and slide downwards, thereby making electrical contact between the metal plate 350 and the switch connecting piece 360. The concave arc-shaped pad 320 can fit well with the bottom contour of the test tube, better applying force to the plastic rod 310.

[0064] In an optional embodiment, the metal sheet 350 has an upwardly bent flip surface 351 at both ends in the sliding direction, and the switch connecting piece 360 ​​has a downwardly bent flip surface 361 at both ends in the sliding direction. Both the first flip surface 351 and the second flip surface 361 are elastic springs. The bend design of the first flip surface 351 and the second flip surface 361, when combined, can effectively prevent the metal sheet 350 from getting stuck in contact with the switch connecting piece 360 ​​during sliding, and at the same time, can better ensure good electrical contact between the two.

[0065] The working principle of this utility model is as follows:

[0066] The additive container 410 is connected to the connector 420 via an external hose. Those skilled in the art can electrically connect the additive container 410, the drive device 500, and the switch connector 360 to an external control circuit and power supply. The sampled test tubes are inserted into the test tube slots 220 of the test tube placement block 210. The drive device 500 is started to move the test tube placement assembly 200 on the placement rack 100.

[0067] The test tube placement block 210 is inserted into the test tube. Under the influence of gravity, the test tube presses downward against the arc-shaped pad 320, causing the plastic rod 310 at the bottom of the arc-shaped pad 320 to move downward. When the test tube placement block 210 moves below the dropper 430 via the drive device 500, the metal plate 350 contacts the switch connecting piece 360, creating a circuit in the switch connecting piece 360. The control circuit receives the signal and stops the drive device 500, ensuring the test tube is directly below the dropper 430 and no longer moves. At this point, the test tube placed on the test tube placement block 210 is exactly below the dropper 430. Then, the external control circuit activates the additive container 410, injecting the additive into the test tube in a measured amount through the dropper 430.

[0068] After the additive injection is completed, the control circuit restarts the drive device 500 and drives the test tube placement assembly 200 to rotate. This process repeats continuously, automating the addition of reagents to all vertical and tilted test tubes placed on the test tube placement assembly 200. It should be noted that while those skilled in the art can easily achieve this automation using editable logic circuits, this is not covered by this patent, and a detailed automation solution will not be elaborated here.

[0069] If no test tube is inserted into the test tube slot 220 of the test tube placement block 210, the plastic rod 310 will move upward to its original position under the action of the spring 330. Even if the unloaded test tube placement block 210 moves below the dropper 430, the metal piece 350 at the bottom of the plastic rod 310 will not make contact with the switch connecting piece 360. As a result, the drive device 500 will continue to operate normally until the test tube placement block 210 with a test tube inserted moves below the dropper 430, at which point the drive device 500 will stop.

[0070] The driving device 500 pushes the test tube placement assembly 200 to push the test tube placement block 210 from the vertical area 110 through the tilting and turning area 130 into the tilting area 120, and the power is turned off by those skilled in the art, and the state inside the test tube is observed in the tilted state.

[0071] Example 2

[0072] like Figure 8 As shown, the difference between this embodiment and Embodiment 1 is that the groove on the upper surface of the placement rack 100 is designed as a strip. Correspondingly, the test tube placement assembly 200 is also designed as a snake-like structure that slides within the strip groove. The test tube placement blocks 210 in the vertical area 110, the tilting turning area 130, and the tilting area 120 are connected in series by elastic ropes 240. The rest of the structure is basically the same and will not be described in detail here.

[0073] Compared to the technical solution of Embodiment 1, the strip-shaped display rack can be configured according to the tilting and turning area 130 by those skilled in the art to enable the test tube placement block 210 to be flipped forward or backward.

[0074] In summary, this utility model adopts the above-described structure, and its advantages are as follows:

[0075] 1. It can automatically add additives. The additive container is connected to the dropper through an external hose. The sampled test tube is inserted into the test tube slot of the test tube placement block. The drive device is activated to move the test tube placement assembly on the placement rack. The test tube placement block with the inserted test tube presses down on the arc-shaped pad, causing the plastic rod at the bottom of the arc-shaped pad to move downward. When the test tube placement block moves to below the dropper through the drive device, the metal plate contacts the switch connection piece and powers on to stop the drive device. The test tube is then positioned directly below the dropper. Then, the external control circuit activates the micro pump to inject the additive into the test tube through the dropper.

[0076] 2. If no test tube is inserted, the metal plate inside the test tube placement block will not contact the switch connection piece, and the drive device will operate normally, preventing accidental addition and improving work efficiency;

[0077] 3. It has the effect of automatically tilting test tubes. One section of the rack is set as a vertical area, and the test tube placement component is vertical when it is in the groove of the vertical area. The other section of the rack is set as a tilting area, and the test tube placement component is tilted towards the front when it is in the groove of the vertical area. The vertical area and the tilting area are set as a tilting turning area. The driving device pushes the test tube placement component to push the test tube placement block from the vertical area through the tilting turning area into the tilting area. The power is turned off by those skilled in the art, and the state inside the test tube is observed in the tilted state.

[0078] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A test tube rack, characterized in that, The test tube rack includes: A support (400) is provided with a vertical frame, and a dropper (430) is installed on one side of the top of the vertical frame; A display rack (100) is mounted on the support (400), and the upper surface of the display rack (100) is provided with a sliding groove; A test tube placement assembly (200) is slidably installed in the groove. The test tube placement assembly (200) has a vertical area (110) and an inclined area (120). Both the vertical area and the inclined area have at least one test tube slot (220). The test tubes placed in the test tube slots (220) of the vertical area (110) and the inclined area (120) are in vertical and inclined states, respectively. A driving device is connected to the test tube placement assembly (200). The driving device drives the test tube placement assembly (200) to move along the slide, so that the test tube openings placed in the vertical area (110) or the inclined area (120) pass directly below the dropper (430) in sequence.

2. The test tube rack as described in claim 1, characterized in that, An inclined turning area (130) is provided between the vertical area (110) and the inclined area (120), and the inclined turning area (130) is provided with a test tube slot (220).

3. A test tube rack as described in claim 2, characterized in that, The test tube placement assembly (200) includes several sets of test tube placement blocks (210), and the test tube placement block (210) has a test tube slot (220) in the middle of its top. The test tube placement block (210) has a through hole (230) extending horizontally through it. Several sets of the test tube placement blocks (210) are connected in series by passing an elastic rope (240) through the through hole (230) to form the test tube placement assembly (200).

4. A test tube rack as described in claim 3, characterized in that, The chute and the test tube placement assembly (200) are strip-shaped or ring-shaped.

5. A test tube rack as described in claim 3, characterized in that, Each of the test tube placement blocks (210) has a rubber layer (260) bonded to its outer side; The drive device (500) consists of rollers, driven wheels, belts and motors. The rollers and driven wheels are installed at intervals on the same side of the placement rack (100). The output end of the motor is fixedly installed with the rollers. The rollers and driven wheels are connected by belt drive. The belt is in rolling friction engagement with the rubber layer (260). The rotating belt drives the test tube placement assembly (200) to slide along the direction of the groove.

6. A test tube rack as described in claim 1, characterized in that, The bracket (400) includes a mounting base (440) that is fixedly connected to the bottom of the vertical frame.

7. A test tube rack as described in claim 3, characterized in that, The top of the vertical frame is fixedly installed with a dropper bracket for fixing the dropper (430). An additive medicine container (410) is installed on the dropper bracket. The additive medicine container (410) is equipped with a micro pump body. The top of the dropper (430) is provided with a connection port (420). The connection port (420) is connected to the additive medicine container (410) through a delivery pipeline.

8. A test tube rack as described in claim 7, characterized in that, The bottom of the test tube placement block (210) is provided with a stepped through hole (250) that is connected to the test tube slot (220); The test tube rack also includes a control component connected to the drive device and the micro pump body. The control component includes a control circuit, an elastic switch disposed in the stepped through hole (250), and a contact switch disposed in the rack (100). The elastic switch includes a plastic rod (310) that passes through the stepped through hole (250). One end of the plastic rod (310) located in the test tube slot (220) is connected to an arc-shaped pad (320). The other end of the plastic rod (310) is provided with a metal sheet (350). A baffle (340) is fixed on the inner wall of the stepped through hole (250) between the arc-shaped pad (320) and the metal sheet (350). A spring (330) is sleeved on the plastic rod (310) between the baffle (340) and the arc-shaped pad (320). The contact switch includes a switch connecting piece (360) disposed at the bottom of the slide and directly below the dropper (430), the switch connecting piece (360) being connected to the control circuit. When the metal sheet (350) comes into contact with the switch connecting piece (360), the switch connecting piece (360) forms a circuit to trigger the control circuit, which then shuts down the drive device and starts the micro pump.

9. A test tube rack as described in claim 8, characterized in that, The metal sheet (350) has an upwardly bent flipping surface (351) at both ends in the sliding direction. The switch connecting piece (360) has two downwardly bent flip surfaces (361) at both ends in the sliding direction.

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