Laboratory glass dryer with heatable edge

Abstract

The utility model relates to an edge heatable laboratory glass dryer, which comprises a tank body, a heating ring and a tank cover, heating wires are arranged on the inner circumference of the heating ring, the lower ring surface of the heating ring is fixedly connected with a tank opening of the tank body, and the lower edge of the tank cover is sealed and detachably connected with the upper ring surface of the heating ring. According to the utility model, the independent heating ring is arranged between the tank body and the tank cover, and the sealant between the tank cover and the heating ring is heated and softened by using the heating wire, so that the problems that the tank cover is difficult to open due to Vaseline solidification in the traditional glass dryer and the existing heating technology is complicated in manufacturing process and high in maintenance cost are solved.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, and more specifically to an edge-heatable laboratory glass desiccator. Background Technology

[0002] In existing technology, glass desiccators are essential glassware in laboratories, mainly used for drying and preserving hygroscopic and deteriorating materials, precision components, and reagents and items requiring constant weight for experiments. The gap between the desiccator's body and lid needs to be sealed with petroleum jelly. However, because glass desiccators are not used for extended periods or in cold weather, the petroleum jelly used for sealing easily hardens, making it extremely difficult to reopen.

[0003] When faced with the above situation, it is usually necessary to soften the petroleum jelly by means of heat application. In the existing technology, an electric heating wire is embedded in the mouth of the can to heat the seal between the can body and the lid. However, this technology has the disadvantages of complex manufacturing process and the need to replace the entire can body during maintenance, which increases the maintenance cost of the equipment.

[0004] Therefore, how to provide a new edge-heated laboratory glass desiccator that can soften the petroleum jelly used for sealing while reducing maintenance costs is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides an edge-heatable laboratory glass desiccator, which aims to solve the technical problems of the inconvenience of the above-mentioned traditional heat application methods and the high maintenance cost of the integrated design of the heating wire and the tank.

[0006] An edge-heatable laboratory glass desiccator includes:

[0007] Tank body;

[0008] A heating ring, with heating wires arranged around its inner circumference, and the lower ring surface of the heating ring is fixedly connected to the opening of the tank.

[0009] The can lid has a lower edge that is sealed to the upper ring surface of the heating ring and is detachably connected.

[0010] Through the above technical solution, this utility model arranges a heating ring between the can body and the can lid, which can soften the sealant between the can lid and the heating ring, making it easier to open the can lid. Moreover, the separate heating ring design avoids the manufacturing complexity caused by the integrated design of heating wire and can body in traditional designs, making it easier to replace and repair, and reducing maintenance costs.

[0011] Preferably, the outer edge of the can opening of the can body is provided with an extended ground joint edge, and the lower ring surface of the heating ring is fixedly connected to the upper surface of the extended ground joint edge.

[0012] Preferably, the lower edge of the can lid is provided with an extended ground joint edge II, and the upper ring surface of the heating ring is sealed to the extended ground joint edge II and detachably connected.

[0013] Preferably, the upper ring surface of the heating ring and the extended ground joint edge are sealed with petroleum jelly.

[0014] Preferably, the bottom surface of the can lid is designed with a concave center, and the upper ring surface of the heating ring is fixedly connected to a positioning part on the side close to its inner ring surface. The positioning surface of the positioning part is arranged to follow the shape of the concave surface of the bottom surface of the can lid.

[0015] Preferably, the positioning surface and the upper ring surface of the heating ring are rounded, the heating wire is spirally arranged along the center of the heating ring, and the combined surface formed by the positioning surface and the upper ring surface of the heating ring is arranged in a conformal manner.

[0016] Preferably, both ends of the heating wire protrude from the outer ring surface of the heating ring.

[0017] Preferably, it also includes a ceramic disc, and the side wall of the tank near the bottom converges towards the center to form a support platform arranged perpendicular to the height direction of the tank, and the lower surface of the ceramic disc contacts and abuts against the surface of the support platform.

[0018] Preferably, a desiccant is placed in the cavity of the can located below the ceramic plate.

[0019] Preferably, the ceramic plate has evenly spaced ventilation holes on its surface.

[0020] As can be seen from the above technical solution, compared with the prior art, this utility model discloses an edge-heatable laboratory glass desiccator with the following beneficial effects: By setting an independent heating ring between the can body and the can lid, the heating wire around its inner circumference can heat and soften the sealant (such as petroleum jelly) between the can lid and the heating ring, making it easier to open the can lid. At the same time, this method of setting the heating ring separately simplifies the manufacturing process compared with the traditional design of embedding the heating wire into the can body. When the heating ring fails, it is not necessary to replace the entire can body; only the heating ring needs to be replaced, thus reducing maintenance costs. Attached Figure Description

[0021] Figure 1 A three-dimensional schematic diagram of an edge-heatable laboratory glass desiccator provided by this utility model;

[0022] Figure 2 A partial cross-sectional view of an edge-heatable laboratory glass desiccator provided by this utility model;

[0023] Figure 3 for Figure 2 A magnified view of a section at point A;

[0024] Figure 4 A partial cross-sectional view of an edge-heatable laboratory glass desiccator (with concealed lid) provided for this utility model;

[0025] Figure 5 for Figure 4 A magnified view of section B.

[0026] Wherein: 1-tank body; 2-heating ring; 3-tank lid; 4-ceramic disc; 11-extended ground joint edge one; 21-heating wire; 22-positioning part; 31-extended ground joint edge two; 41-vent hole; 221-positioning surface. Detailed Implementation

[0027] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0028] See appendix Figure 1-5 This utility model discloses an edge-heatable laboratory glass desiccator, comprising: a tank body 1, a heating ring 2, and a tank lid 3;

[0029] Heating wires 21 are arranged around the inner circumference of the heating ring 2, and the lower ring surface of the heating ring 2 is fixedly connected to the opening of the tank body 1.

[0030] The lower edge of the can lid 3 is sealed to the upper ring surface of the heating ring 2 and is detachably connected.

[0031] In some embodiments, the outer edge of the can opening of the can body 1 is provided with an extended ground edge 11, and the lower ring surface of the heating ring 2 is fixedly connected to the upper surface of the extended ground edge 11.

[0032] In other embodiments, the lower edge of the can lid 3 is provided with an extended ground joint edge 31, and the upper ring surface of the heating ring 2 is sealed to the extended ground joint edge 31 and detachably connected.

[0033] In this embodiment, the upper ring surface of the heating ring 2 and the extended ground joint edge 31 are sealed with Vaseline.

[0034] In one embodiment, the bottom surface of the can lid 3 is concave at the center, and a positioning part 22 is fixedly connected to the upper ring surface of the heating ring 2 on the side closest to its inner ring surface. The positioning surface 221 of the positioning part 22 is arranged to conform to the concave surface of the bottom surface of the can lid 3. Thus, the concave design of the bottom surface of the can lid 3 and the setting of the positioning part 22 make the fit between the can lid 3 and the heating ring 2 more precise. The conformal arrangement of the positioning surface of the positioning part 22 and the concave surface of the bottom surface of the can lid 3 can prevent the can lid 3 from shifting during placement.

[0035] In this embodiment, the positioning surface 221 transitions to the upper ring surface of the heating ring 2 with rounded corners. The heating wire 21 is spirally arranged along the center of the heating ring 2, and the combined surface formed by the positioning surface 221 and the upper ring surface of the heating ring 2 is arranged in a conformal manner. As a result, during the heating process, the heating wire 21 arranged on the positioning surface 221 will exert an upward oblique thrust on the concave surface at the bottom of the can lid 3 due to thermal expansion and contraction, making it easier for the can lid 3 to separate from the heating ring 2.

[0036] Specifically, heating ring 2 can be installed on an existing glass dryer.

[0037] In one embodiment, both ends of the heating wire 21 protrude from the outer ring surface of the heating ring 2. This facilitates connection to an external power source.

[0038] In some embodiments, a ceramic disc 4 is also included. A portion of the side wall of the tank 1 near the bottom converges towards the center to form a support platform 12 perpendicular to the height direction of the tank 1. The lower surface of the ceramic disc 4 contacts and abuts against the surface of the support platform 12. Thus, the support platform 12 near the bottom of the side wall of the tank 1 provides a stable placement platform for the ceramic disc 4. The contact between the lower surface of the ceramic disc 4 and the surface of the support platform 12 ensures that the ceramic disc 4 remains stable within the dryer and does not easily shake, providing a good supporting foundation for placing items to be dried.

[0039] In some specific embodiments, a desiccant is placed in the cavity of the can 1 located below the ceramic plate 4.

[0040] In some other embodiments, the ceramic disc 4 has evenly spaced ventilation holes 41 on its surface. These ventilation holes 41 allow the desiccant to exchange airflow with the items placed on the ceramic disc 4, accelerating moisture absorption and diffusion, improving drying efficiency, and ensuring uniform drying of the items.

[0041] The specific principle and usage of the edge-heatable laboratory glass desiccator provided in this embodiment are as follows:

[0042] When it is necessary to open the can lid 3, the power supply is connected to the heating wire 21. The heating wire 21 generates heat. Since the upper ring surface of the heating ring 2 and the extended ground edge 31 of the lower edge of the can lid 3 are sealed and detachably connected by Vaseline, the heat is transferred to the Vaseline, which softens it. The can lid 3, which was originally difficult to open due to the solidification of Vaseline, is then easy to open.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An edge-heatable laboratory glass desiccator, characterized in that, include: Tank body (1); Heating ring (2), heating wire (21) is arranged around the inner circumference of the heating ring (2), and the lower ring surface of the heating ring (2) is fixedly connected to the opening of the tank body (1); The can lid (3) has its lower edge sealed to the upper ring surface of the heating ring (2) and is detachably connected.

2. The edge-heatable laboratory glass desiccator according to claim 1, characterized in that, The outer edge of the can opening of the can body (1) is provided with an extended ground edge (11), and the lower ring surface of the heating ring (2) is fixedly connected to the upper surface of the extended ground edge (11).

3. The edge-heatable laboratory glass desiccator according to claim 1, characterized in that, The lower edge of the can lid (3) is provided with an extended ground joint edge (31), and the upper ring surface of the heating ring (2) is sealed and detachably connected to the lower surface of the extended ground joint edge (31).

4. The edge-heatable laboratory glass desiccator according to claim 3, characterized in that, The upper annular surface of the heating ring (2) and the lower surface of the extended ground joint edge (31) are sealed with Vaseline.

5. The edge-heatable laboratory glass desiccator according to claim 4, characterized in that, The bottom surface of the can lid (3) is concave in the center. The upper ring surface of the heating ring (2) is fixedly connected to a positioning part (22) on the side close to its inner ring surface. The positioning surface (221) of the positioning part (22) is arranged to follow the concave surface of the bottom surface of the can lid (3).

6. The edge-heatable laboratory glass desiccator according to claim 5, characterized in that, The positioning surface (221) transitions to the upper ring surface of the heating ring (2) with a rounded corner. The heating wire (21) is spirally arranged along the center of the heating ring (2) and the combined surface formed by the positioning surface (221) and the upper ring surface of the heating ring (2) is arranged in a conformal manner.

7. The edge-heatable laboratory glass desiccator according to claim 1, characterized in that, The two ends of the heating wire (21) protrude from the outer ring surface of the heating ring (2).

8. The edge-heatable laboratory glass desiccator according to claim 1, characterized in that, It also includes a ceramic plate (4), and the side wall of the tank (1) near its bottom converges towards the center to form a support platform (12) arranged perpendicular to the height direction of the tank (1). The lower plate surface of the ceramic plate (4) contacts and abuts against the surface of the support platform (12).

9. The edge-heatable laboratory glass desiccator according to claim 8, characterized in that, A desiccant is placed in the cavity of the can (1) located below the ceramic plate (4).

10. The edge-heatable laboratory glass desiccator according to claim 9, characterized in that, The ceramic disc (4) has evenly spaced ventilation holes (41) on its surface.

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