Natural air-drying drying table for test tubes

Abstract

A drying table for natural air drying of test tubes is characterized in that an engineering plastic base is used as a main body, a water guide plane which inclines downwards by about 3-5 degrees and is provided with four water retaining edges is manufactured on the base, the positions, close to the front sides, of the left water retaining edge and the right water retaining edge of the water guide plane are each provided with a drainage notch, and the left end face and the right end face of the base are each connected with a square engineering plastic handle; a bent stainless steel wire is installed on the horizontal guide plane of the engineering plastic base, the straight end of the stainless steel wire is fixed in the engineering plastic base, and the bent end of the stainless steel wire is vertically arranged in the air and used for supporting the bottom of an inverted test tube. As the contact area of the bottom of the test tube and the stainless steel wire is small, the contact part of the test tube and the stainless steel wire is naturally air-dried. The stainless steel wire is stable in chemical property and cannot pollute the interior of the test tube; as the test tube is placed upside down, dust is not easy to accumulate in the test tube in the drying process. The utility model relates to the technical field of chemical engineering experiments, and solves the technical problems of natural air drying of test tubes and water and dust pollution.

Description

Technical Field

[0001] This utility model relates to the field of chemical engineering experimental technology, and in particular to a test tube natural air drying rack for chemical engineering experiments. Background Technology

[0002] In chemical engineering laboratories, test tubes are commonly used experimental instruments for heating or chemical reactions of reagents. After use, test tubes need to be cleaned and dried. For test tubes that need immediate use, a test tube drying oven is usually used for electric heating and drying; while for test tubes that are not needed immediately, natural air drying is generally used to save energy. Commonly used test tube racks are double-layered perforated racks where test tubes can be placed vertically or upside down. When test tubes are placed vertically, water on the inner wall of the test tube is difficult to dry naturally; at the same time, because the test tube openings are upward, dust is more likely to accumulate on the test tubes, resulting in some contamination after drying. When test tubes are placed upside down on a double-layered perforated rack, water accumulates on the test tube ends because the test tube ends are in contact with the rack surface, making it difficult to dry. Currently, there are drying racks that use wooden or plastic vertical poles to support inverted test tubes, which can effectively solve the problem of dust accumulation when the test tubes are open. However, the supporting surface between the wooden or plastic vertical poles and the test tubes is relatively large, causing water to accumulate at this point and making it difficult to dry. In particular, the wooden vertical poles are prone to corrosion under the influence of water, which in turn contaminates the contact surface between the wooden vertical poles and the test tubes. This invention can effectively solve the technical problems of natural air drying and water and dust accumulation contamination in chemical engineering experiments. Utility Model Content

[0003] To address the technical problems of natural air drying and water / dust accumulation in test tubes not immediately used during chemical engineering experiments, this invention proposes a structural solution for a test tube natural air drying platform. This effectively solves the problem of natural air drying for test tubes not immediately used in chemical engineering experiments and reduces the contact area between the inverted test tubes and the support rods. A curved stainless steel wire with a certain degree of elasticity and a diameter controlled within 1.5-2.5 mm is used as the support for the inverted test tubes, thus solving the technical problems of large support surfaces on wooden or plastic vertical rods, which are prone to water accumulation, and the corrosion of wooden vertical rods that contaminates the test tubes. Simultaneously, the elasticity of the stainless steel wire also facilitates the placement and retrieval of test tubes by experimental personnel, eliminating concerns about potential damage or even breakage of test tubes due to improper placement or retrieval angles when using wooden or plastic vertical rods.

[0004] Specific technical solution of utility model

[0005] This invention consists of an engineering plastic base with four water-retaining edges as its main body. Within the four water-retaining edges of the base is a guide surface that slopes downwards at approximately 3-5 degrees. On the left and right sides of the guide surface, near the front, there is a drainage notch. A square engineering plastic handle is connected to each of the left and right ends of the engineering plastic base, used by laboratory personnel to move test tubes to a natural air-drying platform. A curved stainless steel wire is installed on the guide surface of the engineering plastic base, perpendicular to it. The straight end of the stainless steel wire is fixed to the body of the engineering plastic base, while the curved end extends vertically into the air to support the bottom of an inverted test tube. The net height of the stainless steel wire extending into the air is approximately 5-10 mm greater than the length of the test tube, ensuring that when the test tube is placed inverted on the stainless steel wire, the tube opening is approximately 5-10 mm above the guide surface with water-retaining edges, preventing water accumulation due to contact between the tube opening and the guide surface on the engineering plastic base. The stainless steel wire used should have a certain degree of elasticity and thickness, with its diameter controlled within 1.5-2.5 mm. Because the contact area between the bottom of the test tube and the stainless steel wire is small, the bottom of the test tube dries relatively easily. Simultaneously, the chemically stable nature of the stainless steel wire prevents corrosion from contact with air and water, thus preventing contamination of the test tube's interior during the drying process. Furthermore, since the test tube is inverted, dust will not accumulate during drying, effectively solving the technical problems of natural air drying and water / dust accumulation in chemical engineering experiments. The elasticity and thickness of the stainless steel wire used as a support rod also facilitates the placement and retrieval of test tubes by researchers, eliminating concerns about potential damage or even breakage of test tubes when using wooden or plastic vertical poles for support due to improper angles. Attached Figure Description

[0006] Figure 1 The structure of a test tube natural air drying table. Figure 2 This is a top view of the test tube air-drying drying rack in use, mainly illustrating the usage status when the test tubes are placed. Figure 3 This is a detailed view of the test tube air-drying drying table from the right side when it is in use. It mainly shows that the mouth of the test tube should be 5-10 mm above the horizontal plane of the guide.

[0007] Appendix Figure 1 The markings are as follows: 1. Left drainage notch, 2. Engineering plastic base, 3. Right drainage notch, 4. Engineering plastic square handle, 5. Guide surface with water-blocking edge, 6. Stainless steel wire. Detailed Implementation

[0008] The present invention will be further described below with reference to embodiments. The devices, connection structures, and methods involved in the present invention are all known in the art.

[0009] A test tube natural air drying table is mainly composed of an engineering plastic base (2). A guide surface (5) with a downward tilt of 3-5 degrees and a water-blocking edge is made on the engineering plastic base (2). The left and right water-blocking edges of the guide surface (5) have a left drainage notch (1) and a right drainage notch (2) near the front. At the middle of the left and right end faces of the engineering plastic base (2), an engineering plastic square handle (4) is connected to each. On the guide surface (5) with the water-blocking edge, curved stainless steel wires (6) for supporting inverted test tubes are arranged in an array. The straight end of the stainless steel wire (6) is fixed to the body of the engineering plastic base (2), and the curved end of the stainless steel wire (6) is vertically pointing into the air to support the test tubes used in chemical engineering experiments. The vertical net height of the stainless steel wire (6) should be designed according to the length of the test tube to be placed. The net height of the outer part of the stainless steel wire (6) should be 5-10 mm greater than the length of the test tube to be placed, so as to ensure that the mouth of the inverted test tube does not contact the guide surface (5) with the water-blocking edge, and maintain a net height of about 5-10 mm between the mouth of the inverted test tube on the stainless steel wire (6) and the guide surface (5) with the water-blocking edge. The stainless steel wire (6) should have a certain thickness and a certain elasticity, and its diameter should be controlled within 1.5-2.5 mm. Figure 2 A diagram showing the usage of a test tube air-drying drying rack. The rack is already filled with test tubes that need to be air-dried. Figure 3 A detailed view of the test tube opening position on the side of a test tube natural air drying rack in use. The main requirement is that the length of the stainless steel wire (6) should be 5-10 mm longer than the length of the test tube to be placed, so as to prevent the test tube opening from contacting the guide surface (5) with the water-blocking edge, thus preventing water accumulation.

Claims

1. A natural air drying tube drying station, characterized in that, The main body of the drying table is an engineering plastic base (2), which is provided with a water-retaining edge guiding horizontal surface (5) inclined downward by 3-5 degrees on the main body of the engineering plastic base (2), and the left and right water-retaining edges of the guiding horizontal surface (5) are respectively provided with a left drainage gap (1) and a right drainage gap (3) near the front face.

2. The natural air drying drying table according to claim 1, characterized in that, The middle part of the left and right two end faces of the engineering plastic base (2) is respectively connected with an engineering plastic square handle (4).

3. The natural air drying drying table as claimed in claim 1, wherein, The curved stainless steel wire (6) for supporting the inverted test tube is arranged in the water-retaining edge guiding horizontal surface (5), the straight end of the stainless steel wire (6) is fixed in the body of the engineering plastic base (2), and the curved end of the stainless steel wire (6) vertically extends to the air.

4. The natural air drying drying table according to claim 3, characterized in that, The height of the stainless steel wire (6) extending to the air is different according to the length of the test tube to be placed, the net height of the outer part of the stainless steel wire (6) is greater than the length of the placed test tube by 5-10 mm, so as to ensure that the inverted test tube does not contact the water-retaining edge guiding horizontal surface (5), the stainless steel wire (6) has a certain elasticity and a certain thickness, and the diameter thereof is controlled within 1.5-2.5 mm.

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