Glass piston with threads

Abstract

The utility model discloses a glass piston with threads, and relates to the technical field of experimental apparatuses. The glass piston with the threads comprises a piston cylinder, the piston cylinder is of an inverted-cone-cylinder-shaped structure, the wide end of the piston cylinder is integrally connected with a flat handle part used for screwing, and the narrow end of the piston cylinder is integrally provided with a thread part; the piston further comprises a nut, an internal thread groove capable of being in threaded connection with the thread part is integrally formed in the center of the end face of the nut, and a lantern ring is arranged on the thread part in a sleeving mode and located between the piston cylinder and the nut. According to the glass piston with the threads, the handle is changed into a flat shape, an operator can conveniently rotate the piston when using the glass piston, the threads are arranged at the other end of the piston cylinder and matched and fixed with the plastic nut to prevent the piston from automatically falling off, the lantern ring is arranged between the piston cavity and the nut to guarantee the fixity of the nut and the threads, and it is guaranteed that the piston does not automatically fall off from the piston cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental instruments, in particular to a glass piston with screw threads. Background Art

[0002] Glass stoppers in laboratories are usually used to seal laboratory equipment or containers to prevent leakage of liquids or gases. They are usually made of glass with a smooth surface and fit tightly with the ground mouth of the container to prevent leakage of solutions or release of reaction gases. They are mainly used to seal experimental containers such as bottle mouths, flasks, and volumetric flasks. They are often used to store reagents and solutions, or to temporarily seal reaction containers during chemical reactions.

[0003] The glass pistons in conventional glass instruments are made of ordinary materials, which are not resistant to high temperatures, acids and alkalis, and the bottom of the small head is usually fixed with a rubber band. After use, the rubber band ages and the glass piston is easy to fall off or loosen during rotation, affecting the use effect. Therefore, a glass piston with threaded threads is provided to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a glass piston with screw threads, which can solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a glass piston with threaded teeth, comprising a piston cylinder, the piston cylinder is an inverted cone-shaped structure, the wide end of the piston cylinder is integrally connected with a flat handle for screwing, and the narrow end of the piston cylinder is integrally provided with a threaded portion;

[0006] It also includes a nut, wherein an internal thread groove which can be threadedly connected with a threaded portion is integrally formed at the center of the end face of the nut, and a sleeve ring is sleeved on the threaded portion, and the sleeve ring is located between the piston cylinder and the nut.

[0007] Preferably, a butt groove is integrally formed at the bottom of the collar, and a rubber sealing ring is provided between the nut and the collar, which can abut against the nut and the butt groove and be covered by the butt groove, and plays a shock-absorbing and buffering role when in use.

[0008] Preferably, the maximum diameters of the nut and the collar are equal, and a plurality of anti-slip grooves distributed in an annular array and extending along the axial direction of the nut are integrally formed on the outer wall of the nut.

[0009] Preferably, the piston cylinder is made of glass and is made of 3.3 high borosilicate glass, which has the property of being resistant to acid and alkali and is suitable for various containers containing acid and alkali liquids.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the handle of the glass piston with screw threads is changed to a flat type, which is convenient for the operator to rotate the piston when using it; screw threads are arranged at the other end of the piston cylinder to cooperate with the plastic nut to fix it to prevent the piston from falling off by itself; a sleeve ring is arranged between the piston cavity and the nut to ensure the fixation of the nut and the screw threads, thereby ensuring that the piston does not fall off from the piston cavity by itself; a rubber sealing ring is added between the nut and the glass screw threads to play a shock-absorbing and buffering role when in use; at the same time, the piston cylinder is made of 3.3 high borosilicate glass, and has the advantages of reasonable structure, good use effect, the piston does not fall off by itself, and acid and alkali resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a combined state diagram of the utility model;

[0012] Figure 2 This is a split state diagram of the utility model;

[0013] Figure 3 It is a bottom view of the utility model in split state.

[0014] In the figure: 1. piston cylinder; 2. flat handle; 3. threaded portion; 4. nut; 5. internal thread groove; 6. collar; 7. butt groove; 8. rubber sealing ring. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0016] See also Figure 1-3The utility model provides a technical solution: a glass piston with a thread, comprising a piston cylinder 1, the piston cylinder 1 is an inverted cone-shaped structure, the piston cylinder 1 is made of glass and is made of 3.3 high borosilicate glass, the wide end of the piston cylinder 1 is integrally connected with a flat handle part 2 for screwing, the operator is convenient to rotate the piston when using it, the narrow end of the piston cylinder 1 is integrally provided with a thread part 3; and also includes a nut 4, the end face center of the nut 4 is integrally provided with a screw thread part 3, a collar 6 is sleeved on the threaded portion 3, the collar 6 is located between the piston cylinder 1 and the nut 4, a butt groove 7 is integrally formed at the bottom of the collar 6, a rubber sealing ring 8 is disposed between the nut 4 and the collar 6, which can contact with the nut 4 and the butt groove 7 and is covered by the butt groove 7 to ensure the fixation of the nut and the threaded portion, the maximum diameters of the nut 4 and the collar 6 are equal, and a plurality of anti-skid grooves distributed in an annular array and extending along the axial direction of the nut 4 are integrally formed on the outer wall of the nut 4.

[0017] Working principle: When in use, the piston cylinder 1 is inserted into the piston cavity on the glass instrument, the threaded portion 3 is exposed through the bottom of the piston cavity, and then the ring 6 and the rubber sealing ring 8 are successively mounted on the threaded portion 3, and then the nut 4 is screwed onto the threaded portion 3 through the internal thread groove 5 to contact the ring 6. The ring 6 contacts the bottom of the piston cavity under the push of the nut 4 to complete the installation.

[0018] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A glass piston with threaded teeth, characterized in that: include: The piston cylinder (1) is an inverted cone-shaped structure, the wide end of the piston cylinder (1) is integrally connected with a flat handle portion (2) for screwing, and the narrow end of the piston cylinder (1) is integrally provided with a threaded portion (3); The nut (4) has an internal thread groove (5) integrally formed at the center of the end surface of the nut (4) and can be threadedly connected to the thread portion (3). The thread portion (3) is sleeved with a collar (6), and the collar (6) is located between the piston cylinder (1) and the nut (4).

2. A glass piston with threaded teeth according to claim 1, characterized in that: The bottom of the sleeve ring (6) is integrally formed with a butt groove (7), and a rubber sealing ring (8) is provided between the nut (4) and the sleeve ring (6) and can abut against the nut (4) and the butt groove (7) and be covered by the butt groove (7).

3. A glass piston with threaded teeth according to claim 2, characterized in that: The maximum diameters of the nut (4) and the collar (6) are equal.

4. A glass piston with threaded teeth according to claim 3, characterized in that: The outer wall of the nut (4) is integrally provided with a plurality of anti-slip grooves distributed in an annular array and extending along the axial direction of the nut (4).

5. The glass piston with threaded teeth according to claim 1, characterized in that: The piston cylinder (1) is made of glass and is made of 3.3 high borosilicate glass.

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