Anti-lock glass instrument ground plug

Abstract

The utility model relates to the technical field of experimental equipment, and discloses an anti-lock glass instrument ground mouth plug, which comprises a plug head, a glass tube, a glass tube, an anti-lock glass tube, an anti-lock glass tube and an anti-lock glass tube, the threaded rod is vertically fixed to the top of the plug head, and a spiral groove is formed in the outer wall of the threaded rod; the knob sleeve is arranged outside the threaded rod in a sleeving manner and axially moves on the threaded rod through rotation; a frosted surface matched with the taper of the chock plug is arranged on the inner wall of a tube opening of the glass tube to form a sealing interface. According to the utility model, the chock plug is inserted into the frosted pipe orifice of the glass pipe, and is tightly attached to the pipe orifice by utilizing the taper of the conical structure, so as to form initial sealing. And then the knob sleeve is rotated to move on the threaded rod, and the knob sleeve covers the surface of the glass tube to help complete sealing, so that the sealing effect is better.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment, and in particular to a ground glass stopper for preventing seizure. Background Technology

[0002] Ground glass stoppers are widely used in chemical experiments, but they suffer from several problems over time: due to reagent crystallization, temperature changes, or material expansion, the stopper tip easily sticks to the glass tube opening, making it difficult to disassemble. Existing technologies improve sealing by adding rubber gaskets, but this does not solve the problem of sealing, and the rubber is prone to aging. Therefore, we propose an anti-sealing ground glass stopper. Utility Model Content

[0003] To address the technical problems of existing technologies that improve sealing by adding rubber gaskets but fail to solve the problem of locking and the easy aging of rubber, this utility model provides an anti-locking glass instrument ground joint plug.

[0004] This utility model is achieved using the following technical solution: a ground glass instrument anti-locking plug, comprising:

[0005] A stopper, a conical structure, is used to seal the opening of a glass tube;

[0006] A threaded rod is vertically fixed to the top of the plug, and its outer wall is provided with a spiral groove;

[0007] A knob sleeve is fitted onto the outside of a threaded rod and moves axially on the threaded rod by rotation.

[0008] The glass tube has a frosted surface on the inner wall of the tube opening that matches the taper of the stopper, forming a sealing interface.

[0009] More specifically, the stopper is inserted into the frosted end of the glass tube, utilizing its tapered structure to fit tightly against the end, forming an initial seal. Then, by rotating the knob sleeve on the threaded rod, the knob sleeve covers the surface of the glass tube, aiding in a complete seal.

[0010] As a further improvement to the above solution, the cavity formed by the knob sleeve covering the glass tube provides operating space, evenly distributes the pulling force, and avoids local stress concentration.

[0011] As a further improvement to the above solution, the knob sleeve is placed over the glass tube, and the knob sleeve covers the glass tube to form a cavity, which helps the threaded rod to be pulled upward by force.

[0012] As a further improvement to the above solution, the rotating knob sleeve is axially displaced on the surface of the threaded rod, loosening the seal of the knob sleeve on the glass tube and helping to quickly remove the anti-locking ground glass plug.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model involves inserting a stopper into the frosted opening of a glass tube, utilizing its tapered structure to create an initial seal by tightly fitting the tube opening. Subsequently, by rotating a knob sleeve on a threaded rod, the knob sleeve covers the surface of the glass tube, aiding in a complete seal and resulting in a better sealing effect.

[0015] 2. This utility model uses a rotating knob sleeve, which moves axially on the surface of the threaded rod. The knob sleeve loosens the seal on the glass tube, helping to quickly remove the anti-locking ground joint plug and preventing the ground joint plug from locking up and becoming impossible to remove. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the anti-lock plug of this utility model;

[0017] Figure 2 This is a schematic diagram comparing the anti-lock plug and the normal plug of this utility model;

[0018] Figure 3 This is a schematic diagram comparing the installation effects of the locking plug and the normal plug of this utility model.

[0019] Explanation of key symbols:

[0020] 1. Plug; 2. Threaded rod; 3. Knob sleeve; 4. Glass tube. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example 1:

[0022] Please combine Figures 1-3 This embodiment proposes an anti-locking glass instrument ground joint plug, comprising:

[0023] The plug 1 has a conical structure and is used to seal the opening of the glass tube 4;

[0024] The threaded rod 2 is vertically fixed to the top of the plug 1, and its outer wall is provided with a spiral groove.

[0025] The knob sleeve 3 is fitted onto the outside of the threaded rod 2 and is axially displaced on the threaded rod 2 by rotation;

[0026] The glass tube 4 has a frosted surface on the inner wall of the tube opening that matches the taper of the plug 1, forming a sealing interface.

[0027] More specifically, the stopper 1 is inserted into the frosted opening of the glass tube 4, and its tapered structure fits tightly against the opening to form an initial seal. Then, by rotating the knob sleeve 3 on the threaded rod 2, the knob sleeve 3 covers the surface of the glass tube 4, helping to achieve a complete seal.

[0028] When disassembly is required, rotate the knob sleeve 3. The knob sleeve 3 moves axially on the surface of the threaded rod 2, and the knob sleeve 3 loosens the seal on the glass tube 4, which helps to quickly remove the anti-locking ground joint plug.

[0029] Furthermore, the knob sleeve 3 is placed on top of the glass tube 4, and the knob sleeve 3 covers the glass tube 4 to form a cavity, which helps the threaded rod 2 to be pulled upward by force.

[0030] More specifically, the cavity formed by the knob sleeve 3 covering the glass tube 4 provides operating space, evenly distributes the pulling force, and avoids local stress concentration.

[0031] Specific implementation steps of this utility model:

[0032] Steps: Insert the stopper 1 into the frosted opening of the glass tube 4, utilizing its tapered structure to fit tightly against the opening and form an initial seal. Then, by rotating the knob sleeve 3 on the threaded rod 2, the knob sleeve 3 covers the surface of the glass tube 4, helping to achieve a complete seal.

[0033] When disassembly is required, rotate the knob sleeve 3. The knob sleeve 3 moves axially on the surface of the threaded rod 2, and the knob sleeve 3 loosens the seal on the glass tube 4, which helps to quickly remove the anti-locking ground joint plug.

[0034] The cavity formed by the knob sleeve 3 covering the glass tube 4 provides operating space, evenly distributes the pulling force, and avoids local stress concentration.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An anti-lock glassware ground-in stopper characterized by, The application relates to a glass tube sealing device, which comprises the following parts: a plug (1) in a conical structure for sealing the pipe opening of a glass tube (4); a threaded rod (2) vertically fixed to the top of the plug (1), the outer wall of which is provided with a spiral groove; a knob sleeve (3) sleeved on the outer part of the threaded rod (2) and axially displaced on the threaded rod (2) by rotating; a glass tube (4) with a ground surface on the inner wall of the pipe opening, which matches the taper of the plug (1) and forms a sealing interface.

2. An anti-lock glassware ground-in stopper as defined in claim 1, wherein, The knob sleeve (3) is sleeved above the glass tube (4), the knob sleeve (3) covers the glass tube (4) to form a cavity, and the threaded rod (2) is pulled upward under stress.

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