Test tube suitable for single-handed operation

Abstract

The application provides a test tube suitable for single-hand operation. The test tube suitable for single-hand operation comprises a tube body and a test tube cover arranged on the tube body, the test tube cover comprises a cover body and a locking mechanism arranged on the cover body, the outer side of the tube opening of the tube body is formed with a fixed clasp matched with the locking mechanism, and the top of the cover body is provided with a sealing part for sealing the tube opening of the tube body. The locking mechanism comprises a buckle plate and an elastic clasp, the buckle plate is hinged on the cover body, the buckle plate is located on the outer side of the cover body, and the hinged end of the buckle plate is provided with an eccentric sleeve eccentric rotating part. The elastic clasp is arranged in the cover body and can be deformed, the elastic clasp is located on the inner side of the cover body, and the buckle plate is rotated to drive the eccentric rotating part to rotate, stretch or extrude the elastic clasp. The technical scheme of the application can realize the complete separation of the tube body and the test tube cover through single-hand operation of the operator, fully open the tube opening of the tube body, and thus facilitate the operator to perform other experimental operations.

Description

Technical Field

[0001] This invention relates to the field of experimental equipment technology, and more specifically, to a test tube suitable for one-handed operation. Background Technology

[0002] During experiments, it is often necessary to hold a capped test tube in one hand and a dropper or other experimental equipment in the other hand to add liquid. This process is very inconvenient, and the test tube cap often cannot be opened or falls off. If the test tube cap is opened first and then the liquid is drawn and added, for some microbial experiments, the open tube opening time may cause environmental bacteria contamination and reduce experimental efficiency.

[0003] Traditional test tubes consist of a glass tube and a rubber stopper. They are difficult to operate with one hand and require two hands. The experiment requires inserting a pipette into the test tube while simultaneously removing the rubber stopper, and the removed rubber stopper must remain suspended in the air, not placed on the work surface, to prevent contamination. This is quite difficult for novice testing personnel, who are prone to dropping the stopper onto the work surface, making it very inconvenient to use.

[0004] To solve the above-mentioned technical problems, a test tube that can be operated with one hand is disclosed in patent publication number CN214716766U. The cap of the test tube consists of a base and a spring cap. The spring cap is connected to the base by a buckle. By pressing the buckle, the spring cap can be opened relative to the base.

[0005] Although the aforementioned existing technology enables one-handed operation of opening test tubes, the base and the test tube opening are still connected together, preventing the test tube opening from being fully opened. This increases the difficulty of operating the pipettes and other experimental equipment to avoid contact between them and the test tube opening. Summary of the Invention

[0006] The main objective of this invention is to provide a test tube suitable for one-handed operation, thereby solving the technical problem that the one-handed operation of test tubes in the prior art increases the difficulty of operating experimental equipment such as pipettes.

[0007] To achieve the above objectives, the present invention provides a test tube suitable for one-handed operation, comprising a tube body and a test tube cap disposed on the tube body. The test tube cap includes a cap body and a locking mechanism mounted on the cap body. A fixing ring that cooperates with the locking mechanism is formed on the outer side of the tube opening. A sealing part for sealing the tube opening is provided at the top of the cap body. The locking mechanism includes: a buckle plate, hinged to the cap body, the buckle plate being located on the outer side of the cap body, and an eccentric rotating part provided at the hinge end of the buckle plate; and an elastic retaining ring, deformably mounted in the cap body. Rotation of the buckle plate causes the eccentric rotating part to rotate, stretching or compressing the elastic retaining ring. In the normal state, the elastic retaining ring can disengage relative to the fixing retaining ring, allowing the test tube cap to separate from the tube body. In the deformed state, the elastic retaining ring deforms, causing the elastic retaining ring to cooperate with the fixing retaining ring to limit the cap body to the tube opening, allowing the sealing part to seal the tube opening.

[0008] In one embodiment, in the normal state, the snap plate is open relative to the cover; in the deformed state, the snap plate is closed relative to the cover.

[0009] In one embodiment, the buckle is an arc-shaped buckle that fits against the outer side of the cover.

[0010] In one embodiment, the end of the buckle is provided with an operating end that protrudes relative to the buckle.

[0011] In one embodiment, the operating end is a wedge-shaped structure that curves outward relative to the cover.

[0012] In one embodiment, the locking mechanism further includes a pull plate, and the eccentric rotating part is connected to the elastic retaining ring through the pull plate. The eccentric rotating part rotates and stretches the elastic retaining ring through the pull plate.

[0013] In one embodiment, a limiting protrusion is formed on the outer side of the tube opening, spaced apart from the retaining ring, and the elastic retaining ring is limited by the limiting protrusion.

[0014] In one embodiment, a stop protrusion is formed on the tube body, spaced apart from the fixed retaining ring, and a limiting protrusion is located between the fixed retaining ring and the stop protrusion. The elastic retaining ring is engaged between the fixed retaining ring and the stop protrusion.

[0015] In one embodiment, the bottom of the tube is conical or arc-shaped, and a support leg structure is provided on the outer side of the bottom of the tube.

[0016] Using the technical solution of this invention, when it is necessary to close the test tube cap, the operator can hold the tube body with one hand and rotate the latch plate with their thumb. This allows the eccentric rotating part to rotate, stretching or compressing the elastic retaining ring. In its deformed state, the elastic retaining ring deforms, engaging with the fixed retaining ring to limit the cap to the tube opening. At this time, the sealing part inside the cap seals the tube opening, achieving a seal. When it is necessary to open the test tube cap, the operator can also hold the tube body with one hand and rotate the latch plate with their thumb. This allows the elastic retaining ring to be in its normal state, disengaging from the fixed retaining ring and separating the cap from the tube body. Thus, the technical solution of this invention allows the operator to completely separate the tube body and test tube cap with one hand, fully opening the tube opening and facilitating other experimental operations.

[0017] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 A schematic diagram of the overall structure of an embodiment of a test tube suitable for one-handed operation according to the present invention is shown;

[0020] Figure 2 It shows Figure 1 A schematic diagram of the closed state of the test tube cap in an embodiment of a test tube suitable for one-handed operation;

[0021] Figure 3 It shows Figure 2 A schematic diagram of the open state of the test tube cap of an embodiment of a test tube suitable for one-handed operation;

[0022] Figure 4 It shows Figure 2 A schematic diagram of the locking mechanism of the test tube cap in an embodiment of a test tube suitable for one-handed operation;

[0023] Figure 5 It shows Figure 4 A top view of the locking mechanism;

[0024] Figure 6 It shows Figure 2 A cross-sectional view of the test tube cap;

[0025] Figure 7 It shows Figure 5 The principle structure diagram of the locking mechanism.

[0026] The above figures include the following reference numerals:

[0027] 10. Tube body; 11. Fixing ring; 12. Limiting protrusion; 13. Stopping protrusion; 14. Support leg structure; 20. Test tube cap; 21. Cap body; 22. Locking mechanism; 221. Pull plate; 222. Buckle plate; 223. Elastic retaining ring; 224. Operating end; 23. Sealing part. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate for the embodiments of the invention described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] Figure 1 , Figure 2 , Figure 3 and Figure 6An embodiment of the test tube suitable for one-handed operation according to the present invention is shown. The test tube includes a tube body 10 and a test tube cap 20 disposed on the tube body 10. The test tube cap 20 includes a cap body 21 and a locking mechanism 22 mounted on the cap body 21. A retaining ring 11 cooperating with the locking mechanism 22 is formed on the outer side of the tube opening of the tube body 10. A sealing portion for sealing the tube opening of the tube body 10 is provided at the top inside the cap body 21. Figure 3 As shown, the locking mechanism 22 includes a buckle plate 222 and an elastic retaining ring 223. The buckle plate 222 is hinged to the cover 21 and is located on the outside of the cover 21. The hinged end of the buckle plate 222 is provided with an eccentric sleeve eccentric rotating part 222a. The elastic retaining ring 223 is deformably installed on the inside of the cover 21. The elastic retaining ring 223 is located on the inside of the cover 21. The buckle plate 222 rotates on the cover 21, causing the eccentric rotating part 222a to rotate, stretching or compressing the elastic retaining ring 223. In the normal state, the elastic retaining ring 223 can disengage relative to the fixed retaining ring 11, allowing the test tube cap 20 to separate from the tube body 10. In the deformed state, the elastic retaining ring 223 deforms so that it cooperates with the fixed retaining ring 11 to limit the cover 21 to the tube opening, allowing the sealing part 23 to seal the tube opening.

[0033] Applying the technical solution of this invention, when it is necessary to close the test tube cap, the operator can hold the tube body with one hand and rotate the buckle plate 222 with their thumb. This causes the eccentric rotating part 222a to rotate, stretching or compressing the elastic retaining ring 223. In its deformed state, the elastic retaining ring 223 deforms and engages with the fixed retaining ring 11, limiting the cap 21 to the tube opening. At this time, the sealing part inside the cap 21 seals the tube opening, achieving a seal. When it is necessary to open the test tube cap, the operator can also hold the tube body with one hand and rotate the buckle plate 222 with their thumb. This allows the elastic retaining ring 223 to be in its normal state, disengaging from the fixed retaining ring 11, thus separating the cap 21 from the tube body 10. In this way, the technical solution of this invention allows the operator to completely separate the tube body 10 and the test tube cap 20 with one hand, fully opening the tube opening and facilitating other experimental operations.

[0034] like Figure 4 and Figure 5 As shown in the technical solution of this embodiment, the portion of the elastic retaining ring 223 that is in a deformed state represents the portion in a normal state, while the portion represented by the dashed line represents the portion in a normal state. In the deformed state, the elastic retaining ring 223 is stretched into an ellipse and engages with the fixing retaining ring 11. In the normal state, it returns to a circular shape and can detach from the fixing retaining ring 11. Preferably, the elastic retaining ring 223 can be thickened in the 9 o'clock and 3 o'clock directions to prevent it from deforming and being confined by the test tube wall.

[0035] As a preferred implementation method, such as Figure 7 As shown, in this embodiment, the locking mechanism 22 further includes a pull plate 221. The eccentric rotating part 222a is connected to the elastic retaining ring 223 via the pull plate 221. The eccentric rotating part 222a rotates and stretches the elastic retaining ring 223 via the pull plate 221. In other optional embodiments, the pull plate 221 can be omitted, allowing the eccentric rotating part 222a to directly abut against the elastic retaining ring 223. In this embodiment, the elastic retaining ring 223 is deformed by compressing it.

[0036] In the technical solution of this embodiment, in the normal state, the retaining ring 223 opens the buckle plate 222 relative to the cover 21; in the deformed state, the retaining ring 223 closes the buckle plate 222 relative to the cover 21, which can reduce the space occupied by the buckle plate 222 when the test tube cover is closed.

[0037] like Figure 4 and Figure 5 As shown, more preferably, in the technical solution of this embodiment, the buckle plate 222 is an arc-shaped buckle plate 222, and the buckle plate 222 fits against the outer side of the cover 21, which can further reduce the space occupied by the buckle plate 222 when the test tube cover is fastened.

[0038] As a preferred implementation method, such as Figure 4 As shown, in this embodiment, the end of the snap plate 222 is provided with an operating end 224, which protrudes relative to the snap plate 222 to facilitate the opening of the snap plate 222 by finger operation. More preferably, in this embodiment, the operating end 224 is a wedge-shaped structure that curves outward relative to the cover 21, which is more conducive to the operation with one hand, allowing the thumbnail to pry open and rotate the snap plate 222.

[0039] In a more preferred embodiment, to ensure a more stable installation of the cap 21 on the tube 10, a limiting protrusion 12, spaced apart from the fixing ring 11, is formed on the outer side of the tube opening of the tube 10. The elastic ring 223 is positioned by the limiting protrusion 12. In use, the lower half of the elastic ring 223 is engaged with the limiting protrusion 12, thus preventing the test tube cap 20 from becoming loose.

[0040] In a preferred embodiment, the test tube body 231 has a stop protrusion 13 spaced apart from the fixing ring 1111. A limiting protrusion 12 is located between the fixing ring 11 and the stop protrusion 13. An elastic ring 223 is engaged between the fixing ring 11 and the stop protrusion 13. The elastic ring 223, through the limiting protrusion 12 and the engagement of the fixing ring 11 and the stop protrusion 13, works together to limit and fix the cap 21 to the tube body 10, ensuring a firm connection and preventing the test tube cap 20 from loosening and causing liquid leakage.

[0041] Optionally, in this embodiment, the bottom of the tube 10 is conical or arc-shaped, and a support leg structure 14 is provided on the outer side of the bottom of the tube 10. In this embodiment, the support leg structure is a cylindrical support leg, which can directly support the test tube on the table and prevent the test tube from tipping over. As another optional embodiment, the support leg can also be prismatic.

[0042] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0043] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0044] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A test tube suitable for one-handed operation, comprising a tube body (10) and a test tube cap (20) disposed on the tube body (10), characterized in that, The test tube cap (20) includes a cap body (21) and a locking mechanism (22) installed on the cap body (21). A fixing ring (11) that cooperates with the locking mechanism (22) is formed on the outer side of the tube opening of the tube body (10). A sealing part (23) for sealing the tube opening of the tube body (10) is provided at the top inside the cap body (21). The locking mechanism (22) includes: A snap plate (222) is hinged to the cover (21). The snap plate (222) is located on the outside of the cover (21). The hinge end of the snap plate (222) is provided with an eccentric rotating part (222a). The elastic retaining ring (223) is deformably installed inside the cover (21). The buckle plate (222) rotates, causing the eccentric rotating part (222a) to rotate, stretching or squeezing the elastic retaining ring (223). In its normal state, the elastic retaining ring (223) can disengage relative to the fixed retaining ring (11), allowing the test tube cap (20) to separate relative to the tube body (10); In the deformed state, the elastic retaining ring (223) deforms so that the elastic retaining ring (223) cooperates with the fixed retaining ring (11) to limit the cover (21) on the pipe opening, so that the sealing part blocks the pipe opening; The locking mechanism (22) further includes a pull plate (221), the eccentric rotating part (222a) is connected to the elastic retaining ring (223) through the pull plate (221), and the eccentric rotating part (222a) rotates and stretches the elastic retaining ring (223) through the pull plate (221); In its normal state, the retaining ring (223) opens the buckle plate (222) relative to the cover (21); in its deformed state, the retaining ring (223) engages the buckle plate (222) relative to the cover (21). The end of the buckle plate (222) is provided with an operating end (224), which protrudes from the buckle plate (222) and is a wedge-shaped structure that curves outward relative to the cover (21). The tube (10) A limiting protrusion (12) is formed on the outer side of the tube opening, spaced apart from the fixed retaining ring (11). The elastic retaining ring (223) is limited by the limiting protrusion (12). A stop protrusion (13) is formed on the tube body (10), spaced apart from the fixed retaining ring (11). The limiting protrusion (12) is located between the fixed retaining ring (11) and the stop protrusion (13). The elastic retaining ring (223) is engaged between the fixed retaining ring (11) and the stop protrusion (13).

2. The test tube suitable for one-handed operation according to claim 1, characterized in that, The buckle plate (222) is an arc-shaped buckle plate (222), and the buckle plate (222) is attached to the outer side of the cover (21).

3. The test tube suitable for one-handed operation according to claim 1, characterized in that, The bottom of the tube (10) is conical or arc-shaped, and a support leg structure (14) is provided on the outer side of the bottom of the tube (10).

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