CN221638185U - High-strength double-layer glass test tube - Google Patents

Abstract

The utility model relates to the technical field of test tubes, specifically to a high-strength double-layer glass test tube, comprising a glass inner tube, a glass outer tube is sleeved on the outer side of the glass inner tube, a glass connecting plate is integrally formed on the top of the glass inner tube and the glass outer tube, a plastic gasket is fixed on the top surface of the glass connecting plate, an identification plate is provided on the surface of the plastic gasket, a plastic sealing cover is sleeved above the plastic gasket, a plug is fixed on the surface of the plastic sealing cover, and the plug is plugged into the inside of the glass inner tube; the beneficial effect is: the high-strength double-layer glass test tube proposed by the utility model, after the plastic sealing cover is sleeved on the top of the glass test tube, the plug on the surface of the plastic sealing cover is inserted into the glass inner tube to achieve a first seal, and the plastic sealing cover is pressed on the surface of the plastic gasket to form a second seal, and the side plate of the plastic sealing cover is sleeved on the top of the glass outer tube to form a third seal; the problem of the existing glass test tube sealing head affecting the sealing after wear can be further solved, and the stable sealing of the glass test tube can be met.

Description

A high-strength double-layer glass test tube

Technical Field

The utility model relates to the technical field of test tubes, in particular to a high-strength double-layer glass test tube.

Background Art

Test tube, a commonly used instrument in chemical laboratories, is used as a reaction container for small amounts of reagents and is used at room temperature or when heated (it should be preheated before heating, otherwise the test tube will easily burst).

In the prior art, double-layer glass test tubes made of high-strength glass are widely used. Double-layer glass test tubes have good thermal insulation performance and are usually used to store substances. Due to the presence of the outer glass, even if the user pinches the outer glass with his hand, it will not affect the temperature of the substance in the inner tube. However, traditional glass test tubes are sealed with wooden corks, but the wooden corks are severely worn after long-term use, which affects the sealing of the test tube.

Therefore, we need a high-strength double-layer glass test tube to solve the problem that the sealing of the existing glass test tube is affected by wear and tear, and to ensure stable sealing of the glass test tube.

Utility Model Content

The utility model aims to provide a high-strength double-layer glass test tube to solve the problem in the background technology that the sealing performance of the existing glass test tube is affected by wear and tear, and to ensure stable sealing of the glass test tube.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength double-layer glass test tube, comprising a glass inner tube, a glass outer tube is sleeved on the outer side of the glass inner tube, a glass connecting plate is integrally formed at the top of the glass inner tube and the glass outer tube, a plastic gasket is fixed on the top surface of the glass connecting plate, an identification sheet is provided on the surface of the plastic gasket, a plastic sealing cover is sleeved on the top of the plastic gasket, a plug is fixed on the surface of the plastic sealing cover, and the plug is plugged into the interior of the glass inner tube.

Preferably, a rubber strip is fixed to the outer wall of the glass outer tube, and the rubber strip is in an "L" shape. There are multiple rubber strips, and the multiple rubber strips are arranged and distributed around the outer wall of the glass outer tube at equal distances and sizes.

Preferably, a guide surface 1 is provided at the notch of the glass inner tube, and the guide surface 1 is an arc-shaped annular surface.

Preferably, the plastic gasket is in an annular plate structure, and the inner annular surface of the plastic gasket is provided with a second guide surface, and the second guide surface is an arc-shaped annular surface.

Preferably, a mounting groove is provided on the top surface of the plastic gasket, the mounting groove is an annular groove, the identification piece is inserted into the mounting groove, a rubber inner ring is fixed to the inner ring surface of the mounting groove, a rubber outer ring is fixed to the outer ring surface of the mounting groove, the identification piece is clamped between the rubber inner ring and the bottom surface of the mounting groove, and the identification piece is clamped between the rubber outer ring and the mounting groove.

Preferably, the plastic cover is in a circular frame structure, and an outer ring surface of the plastic cover is provided with a pick-out groove, which is an annular groove.

Preferably, a rubber ring is fixed on the outer ring surface of the plug, the rubber ring is an annular plate structure, and the rubber ring is clamped between the plug and the glass inner tube.

Compared with the prior art, the beneficial effects of the utility model are:

The high-strength double-layer glass test tube proposed by the utility model has a plastic cover sleeved on the top of the glass test tube, and the plug on the surface of the plastic cover is inserted into the glass inner tube to achieve a first seal, and the plastic cover is pressed on the surface of the plastic gasket to form a second seal, and the side plate of the plastic cover is sleeved on the top of the glass outer tube to form a third seal; the problem that the sealing performance of the existing glass test tube is affected by wear of the cover head can be further solved, and the stable sealing of the glass test tube can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

Figure 2 is a top view of the structure of the utility model;

Fig. 3 is a structural cross-sectional view taken along line A-A in Fig. 2;

FIG4 is an enlarged schematic diagram of the structure at point A in FIG3 ;

FIG5 is a schematic diagram of the bottom structure of the plastic cover of the utility model;

FIG6 is a schematic diagram of the connection structure of the glass outer tube and the plastic gasket of the utility model;

FIG. 7 is a schematic diagram of the structure of the plastic gasket of the utility model.

In the figure: glass inner tube 1, glass outer tube 2, glass connecting plate 3, rubber strip 4, guide surface 1 5, plastic gasket 6, guide surface 2 7, installation groove 8, identification sheet 9, rubber inner ring 10, rubber outer ring 11, plastic sealing cover 12, extraction groove 13, plug 14, rubber ring 15.

DETAILED DESCRIPTION

In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Embodiment 1

Please refer to Figures 1 to 3. The utility model provides a technical solution: a high-strength double-layer glass test tube, comprising a glass inner tube 1, a glass outer tube 2 is sleeved on the outer side of the glass inner tube 1, a glass connecting plate 3 is integrally formed on the top of the glass inner tube 1 and the glass outer tube 2, a plastic gasket 6 is fixed on the top surface of the glass connecting plate 3, an identification sheet 9 is provided on the surface of the plastic gasket 6, a plastic cover 12 is sleeved above the plastic gasket 6, a plug 14 is fixed on the surface of the plastic cover 12, and the plug 14 is plugged into the inside of the glass inner tube 1; after the plastic cover 12 is sleeved on the top of the glass test tube, the plug 14 on the surface of the plastic cover 12 is inserted into the glass inner tube 1 to achieve a first seal, and the plastic cover 12 is pressed on the surface of the plastic gasket 6 to form a second seal, and the side plate of the plastic cover 12 is sleeved on the top of the glass outer tube 2 to form a third seal; the problem of the existing glass test tube head affecting the sealing after wear can be further solved, and the stable sealing of the glass test tube can be met.

Embodiment 2

A rubber strip 4 is fixed to the outer wall of the glass outer tube 2 . The rubber strip 4 is in an “L” shape. There are a plurality of rubber strips 4 . The plurality of rubber strips 4 are arranged around the outer wall of the glass outer tube 2 at equal distances and in equal sizes.

The reason why multiple rubber strips 4 are installed on the surface of the glass outer tube 2 is that when the user holds the glass outer tube 2 with fingers, the rubber strips 4 are located between the fingers and the glass outer tube 2, which not only prevents the fingers from slipping, but also reduces the temperature of the fingers from being transferred to the glass outer tube 2.

Embodiment 3

6 and 7 , on the basis of the second embodiment, in order to realize that the information of the substance contained in the glass inner tube 1 can be marked on the top of the glass inner tube 1, the plastic gasket 6 is an annular plate structure, and the inner ring surface of the plastic gasket 6 is provided with a guide surface 2 7, and the guide surface 2 7 is an arc-shaped ring surface; the top surface of the plastic gasket 6 is provided with a mounting groove 8, and the mounting groove 8 is an annular groove, and the identification sheet 9 is inserted into the mounting groove 8. The inner ring surface of the mounting groove 8 is fixed with a rubber inner ring 10, and the outer ring surface of the mounting groove 8 is fixed with a rubber outer ring 11, the identification sheet 9 is clamped between the rubber inner ring 10 and the bottom surface of the mounting groove 8, and the identification sheet 9 is clamped between the rubber outer ring 11 and the mounting groove 8.

The remarks of the substance contained in the glass inner tube 1 are written on the identification sheet 9 , and then the identification sheet 9 is pushed into the installation groove 8 . At this time, the identification sheet 9 is blocked by the rubber inner ring 10 and the rubber outer ring 11 , and the identification sheet 9 will not fall off from the installation groove 8 .

Embodiment 4

4 and 5 , on the basis of the third embodiment, in order to seal the orifice of the glass inner tube 1, a guide surface 5 is provided at the notch of the glass inner tube 1, the guide surface 5 is an arc-shaped annular surface, the plastic cover 12 is a circular frame structure, the outer annular surface of the plastic cover 12 is provided with a pick-out groove 13, the pick-out groove 13 is an annular groove, the outer annular surface of the plug 14 is fixed with a rubber ring 15, the rubber ring 15 is an annular plate structure, and the rubber ring 15 is clamped between the plug 14 and the glass inner tube 1.

After the plastic sealing cap 12 is sleeved on the top of the glass outer tube 2, the plug 14 blocks the tube mouth of the glass inner tube 1, and the rubber ring 15 is clamped between the plug 14 and the glass inner tube 1 to prevent the plug 14 from being separated from the tube mouth of the glass inner tube 1 when there is no external force. The finger is picked in the picking groove 13, the plastic sealing cap 12 is pulled out to pull the plug 14 out of the tube mouth of the glass inner tube 1, and objects can be stored and retrieved from the glass inner tube 1.

In actual use, a plurality of rubber strips 4 are installed on the surface of the glass outer tube 2, so that when the user takes the glass outer tube 2, when the user pinches the glass outer tube 2 with fingers, the rubber strips 4 are between the fingers and the glass outer tube 2, which not only plays a role in preventing the fingers and the glass outer tube 2 from slipping, but also reduces the temperature of the fingers transmitted to the glass outer tube 2 by separating the fingers and the glass outer tube 2; the remarks of the substance contained in the glass inner tube 1 are written on the identification sheet 9, and then the identification sheet 9 is pushed into the installation groove 8, and this When the marking piece 9 is in the state of being inserted into the glass tube 1, the marking piece 9 is blocked by the rubber inner ring 10 and the rubber outer ring 11, and the marking piece 9 will not fall off from the mounting groove 8; after the plastic sealing cover 12 is sleeved on the top of the glass outer tube 2, the plug 14 blocks the pipe opening of the glass inner tube 1, and the rubber ring 15 is clamped between the plug 14 and the glass inner tube 1 to prevent the plug 14 from being separated from the pipe opening of the glass inner tube 1 when there is no external force pulling. The fingers are picked in the picking groove 13, and the plastic sealing cover 12 is pulled out to pull the plug 14 out of the pipe opening of the glass inner tube 1, so that the objects can be stored and retrieved from the inside of the glass inner tube 1.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A high-strength double-layer glass test tube, comprising a glass inner tube (1), a glass outer tube (2) being sleeved on the outer side of the glass inner tube (1), a glass connecting plate (3) being integrally formed at the top of the glass inner tube (1) and the glass outer tube (2), characterized in that a plastic gasket (6) is fixed to the top surface of the glass connecting plate (3), an identification sheet (9) is provided on the surface of the plastic gasket (6), a plastic sealing cover (12) is sleeved above the plastic gasket (6), a plug (14) is fixed on the surface of the plastic sealing cover (12), and the plug (14) is plugged into the interior of the glass inner tube (1). 2. A high-strength double-layer glass test tube according to claim 1, characterized in that: a rubber strip (4) is fixed to the outer wall of the glass outer tube (2), the rubber strip (4) is an "L"-shaped strip, a plurality of rubber strips (4) are provided, and the plurality of rubber strips (4) are arranged and distributed around the outer wall of the glass outer tube (2) at equal distances and in equal sizes. 3. A high-strength double-layer glass test tube according to claim 1, characterized in that: a guide surface 1 (5) is provided at the notch of the glass inner tube (1), and the guide surface 1 (5) is an arc-shaped annular surface. 4. A high-strength double-layer glass test tube according to claim 1, characterized in that: the plastic gasket (6) is an annular plate structure, and the inner ring surface of the plastic gasket (6) is provided with a second guide surface (7), and the second guide surface (7) is an arc-shaped ring surface. 5. A high-strength double-layer glass test tube according to claim 1, characterized in that: a mounting groove (8) is provided on the top surface of the plastic gasket (6), the mounting groove (8) is an annular groove, the identification sheet (9) is inserted into the mounting groove (8), a rubber inner ring (10) is fixed to the inner ring surface of the mounting groove (8), a rubber outer ring (11) is fixed to the outer ring surface of the mounting groove (8), the identification sheet (9) is clamped between the rubber inner ring (10) and the bottom surface of the mounting groove (8), and the identification sheet (9) is clamped between the rubber outer ring (11) and the mounting groove (8). 6. A high-strength double-layer glass test tube according to claim 1, characterized in that: the plastic cover (12) is a circular frame structure, and the outer ring surface of the plastic cover (12) is provided with a pick-out groove (13), and the pick-out groove (13) is an annular groove. 7. A high-strength double-layer glass test tube according to claim 1, characterized in that a rubber ring (15) is fixed to the outer ring surface of the plug (14), the rubber ring (15) is an annular plate structure, and the rubber ring (15) is clamped between the plug (14) and the glass inner tube (1).