CN218392479U

CN218392479U - Laboratory suction filtration fixing device

Info

Publication number: CN218392479U
Application number: CN202221620757.7U
Authority: CN
Inventors: 韦兰丽; 梁敏; 郑婷; 吴丽芸; 杨毅
Original assignee: Guangxi Normal University
Current assignee: Guangxi Normal University
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-01-31
Anticipated expiration: 2032-06-27

Abstract

The utility model belongs to the technical field of laboratory instrument and equipment technique and specifically relates to a laboratory suction filtration fixing device, including buchner flask, fixing device, toper stopper and suction filtration funnel, the toper stopper is filled in the bottleneck of buchner flask, suction filtration funnel is located the top of buchner flask, suction filtration funnel's funnel position is passed the toper stopper gets into inside the buchner flask, fixing device installs on the toper stopper. Utilize fixing device can guarantee the sealed between suction filter funnel and the buchner flask, no longer need the experimenter to hold with the hand, improved experimental efficiency.

Description

Laboratory suction filtration fixing device

Technical Field

The utility model relates to a laboratory instrument and equipment technical field specifically are a laboratory suction filtration fixing device.

Background

In the laboratory, can often need to use suction filter device for chemical analysis, instrumental analysis, health inspection, aspects liquid filtration such as pharmaceutical industry, biological product and pesticide, oil, environmental protection monitoring to particle and bacterium in the monitoring and removal liquid, the vacuum flask is also called solution filter, is a glassware commonly used in the laboratory, and the appearance of suction flask is extremely similar to the erlenmeyer flask, and the difference is that the side has a thin neck, with vacuum pump connection.

The suction filter funnel that current suction filter device used is connected through the toper stopper between the suction filter bottle, and the deviation is some or because the toper stopper of rubber material can appear ageing deformation after using several times in the cooperation size of some toper stoppers and bottleneck, leads to toper stopper and bottleneck sealed not tight, just needs the experimenter to increase the packing force downwards with the hand and prevents gas leakage and can not loosen one's hand during the use, causes the reduction of experimental efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laboratory suction filtration fixing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a laboratory suction filtration fixing device, includes buchner flask, fixing device, toper stopper and suction filtration funnel, the toper stopper is filled in the bottleneck of buchner flask, suction filtration funnel is located buchner flask's top, suction filtration funnel's funnel position passes the toper stopper gets into inside the buchner flask, fixing device installs on the toper stopper.

Furthermore, fixing device includes the gag, presses and constitutes and the snap ring, the gag will the first half parcel of toper stopper is lived, the gag periphery is provided with a plurality of hinged joint's pressure handle, the snap ring can be followed the pressure is slided, be provided with on the snap ring a plurality of draw-in groove with the cooperation of pressure.

Furthermore, the fixing device comprises a plug cover, a pressing handle and a lock catch, the plug cover wraps the upper half part of the conical plug, and the periphery of the plug cover is provided with a plurality of pressing handles connected through hinges; one end of the lock catch is connected with the plug cover through a hinge, and the other end of the lock catch can be clamped into the clamping groove in the pressing handle.

Furthermore, the outer part of the pressing handle is sleeved with a rubber sleeve, and the lower half part of the pressing handle is wrapped by the rubber sleeve.

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

utilize fixing device can guarantee the sealed between suction filter funnel and the buchner flask, no longer need the experimenter to use the hand to support, improved experimental efficiency.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a schematic structural view of a fixing device 2 according to embodiment 1;

FIG. 3 is a schematic structural view of the snap ring 23;

fig. 4 is a schematic view of the structure of the conical plug 3;

fig. 5 is a schematic structural view of the fixing device 2 according to embodiment 2.

In the figure: 1-a suction flask, 2-a fixing device, 21-a plug cover, 22-a pressing handle, 23-a snap ring, 24-a lock catch and 25-a rubber sleeve; 3-conical plug and 4-suction filter funnel.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1 and 4, the present invention provides a technical solution:

the existing laboratory suction filtration device generally comprises a suction filtration bottle 1, a conical plug 3 and a suction filtration funnel 4, wherein the suction filtration funnel 4 and the suction filtration bottle 1 are arranged in series from top to bottom, the conical plug 3 is made of soft materials (such as rubber), the conical plug 3 seals a top inlet of the suction filtration bottle 1, and the funnel of the suction filtration funnel 4 penetrates through the conical plug 3 and extends into the suction filtration bottle 1. The fixing device 2 can ensure the air leakage phenomenon caused by the dimension matching error or aging deformation of the soft material of the conical plug 3, and can ensure that the suction filtration funnel 1 cannot incline. The fixing device 2 in embodiment 1 comprises a plug cover 21, a pressing handle 22, a clamping ring 23 and a rubber sleeve 24, wherein the plug cover 21 wraps the top of the conical plug 3, the plug cover 21 is the pressing handle 22 with a plurality of hinges at the periphery, the clamping ring 23 is sleeved on the periphery of the pressing handle 22, the clamping ring 23 is provided with a plurality of clamping grooves matched with the pressing handle 22, the rubber sleeve 24 is made of a soft material, and the rubber sleeve 24 wraps the lower part of the pressing handle 22 so as to be in contact with the filtering bottle 1 more tightly and play a role in protection. When in use, when the conical plug 3 provided with the fixing device 2 is plugged into the mouth of the suction bottle 1, the pressing handle 22 is pressed against the body of the suction bottle, and the clamping ring 23 is pressed downwards to loosen the hand.

Embodiment 2, a lock catch 24 replaces the snap ring 23 in embodiment 1, and one end of the lock catch 24 is hinged with the plug cover 21. When the bottle stopper is used, the conical plug 3 provided with the fixing device 2 is plugged into the mouth of the filter flask 1, the pressing handle 22 is pressed against the body of the filter flask, and the other end of the lock catch 24 is buckled into the clamping groove on the pressing handle 22, so that the user can release the hand.

While embodiments of the invention have been illustrated and described, it is to be understood that the embodiments described are merely some, and not all, of the embodiments of the invention. Based on the embodiments in the present invention, for those skilled in the art, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Claims

1. The utility model provides a laboratory suction filtration fixing device, its characterized in that, includes buchner flask (1), fixing device (2), conical plug (3) and suction filtration funnel (4), conical plug (3) are filled in the bottleneck of buchner flask (1), suction filtration funnel (4) are located the top of buchner flask (1), the funnel position of suction filtration funnel (4) passes conical plug (3) get into inside buchner flask (1), fixing device (2) are installed on conical plug (3).

2. The laboratory suction filtration fixing device according to claim 1, wherein the fixing device (2) comprises a plug cover (21), a pressing handle (22) and a clamping ring (23), the plug cover (21) wraps the upper half part of the conical plug (3), the periphery of the plug cover (21) is provided with a plurality of hinged pressing handles (22), the clamping ring (23) can slide along the pressing handles (22), and the clamping ring (23) is provided with a plurality of clamping grooves matched with the pressing handles (22).

3. The laboratory suction filtration fixing device according to claim 1, wherein the fixing device (2) comprises a plug cover (21), a pressing handle (22) and a lock catch (24), the plug cover (21) wraps the upper half part of the conical plug (3), and the periphery of the plug cover (21) is provided with a plurality of hinged pressing handles (22); one end of the lock catch (24) is hinged with the plug cover (21), and the other end of the lock catch can be clamped into the clamping groove on the pressing handle (22).

4. A laboratory suction filtration fixing device according to claim 2 or 3, wherein the outside of the pressing handle (22) is covered with a rubber sleeve (25), and the rubber sleeve (25) wraps the lower half part of the pressing handle (22).