Dropping funnel storage rack for laboratory

Abstract

The utility model discloses a dropping funnel storage rack for a laboratory. Comprising a base, a vertical plate, a fixing plate, a sliding fixing plate and a clamping groove. And the piston bayonet for placing the constant-pressure dropping funnel piston is arranged on the fixed plate, so that the piston is separated from the pipe wall of the dropping funnel, and the piston is prevented from being adhered to the pipe wall due to long-time placement. Due to the fact that the sizes of the dropping funnels are different, the sliding fixing plate can slide up and down, and the dropping funnels of different sizes for laboratories can be placed.

Description

Technical Field

[0001] The utility model relates to the field of chemical experimental instruments, in particular to a storage rack for dropping funnels used in experiments. Background Art

[0002] In the laboratory, the dropping funnel is a commonly used glass instrument for separation and extraction.

[0003] At present, there is no placement rack for dropping funnels in the laboratory, which leads to storage and safety problems of dropping funnels. The dropping funnel is a glass instrument and is fragile. If it is not properly placed, storage safety problems of the dropping funnel may easily occur; when it is placed for a long time, the piston on the upper part of the dropping funnel may come into contact with the tube wall and adhesion may occur.

[0004] In response to the storage problem of similar instruments, some researchers have designed a pipette rack (CN207694844U), which allows pipettes and similar structural instruments to be sterilized while being hung and sorted, solving the storage problem of pipettes and similar structural instruments; in order to meet the use requirements and usage range limitations of a variety of instruments, some researchers have designed a rotating lifting instrument rack (CN201410317998.8) that is simple to operate, reasonable in structure, low in cost and flexible, solving the problem of placing different types of instruments; in order to solve the problem of difficulty in placing test tubes, beakers, and conical flasks in the laboratory due to frequent use, some researchers have designed a laboratory instrument rack (CN2018146023U), solving the placement problem of the above three commonly used experimental instruments. However, the storage problem of the dropping funnel has not yet been solved.

[0005] Based on this, the utility model provides a laboratory dropping funnel rack, which can properly place the dropping funnel; at the same time, the piston clamp provided on the fixed plate solves the problem of easy adhesion between the piston and the tube wall, and the card groove and sliding fixed plate provided on the vertical plate allow the placement of dropping funnels of different sizes and dimensions, meeting laboratory needs. Utility Model Content

[0006] In view of the above problems, the utility model provides a dropping funnel storage rack for laboratory use, which can effectively solve the storage and safety problems of the dropping funnel.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions.

[0008] The utility model aims at storing dropping funnels for laboratories.

[0009] The utility model mainly comprises a base and a vertical plate arranged on the base, and is characterized in that a fixing plate, a sliding fixing plate and a clamping groove are arranged on the vertical plate, and a screw rod is connected to the sliding fixing plate.

[0010] The fixing plate is provided with two bayonet holes, the large-sized bayonet hole is a first semicircular bayonet hole, which is used to clamp the pipe mouth of the constant pressure dropping funnel, and the small-sized bayonet hole is a piston bayonet hole, which is used to clamp the piston of the dropping funnel. The semicircle ratio of the piston bayonet hole to the first semicircular bayonet hole is 0.7:1-0.8:1. The purpose of setting the two bayonet holes is to separate the piston from the pipe mouth to prevent the piston from sticking to the pipe mouth due to long-term contact.

[0011] The sliding fixing plate is provided with a second semicircular bayonet for fixing the stopper of the dropping funnel; the radius ratio of the first semicircular bayonet to the second semicircular bayonet is 1:1.2-1:1.3.

[0012] The sliding fixing plate is connected to the screw rod as a whole. The relative position with the bottom plate can be adjusted by moving the sliding fixing plate up and down on the card slot. The sliding fixing plate can be fixed arbitrarily in the card slot, thereby meeting the placement of dropping funnels of different sizes and saving space.

[0013] The ratio of the distance from the bottom plate to the bottom of the card slot to the distance from the bottom plate to the top of the card slot is approximately 1:2.5-1:3, and the ratio of the distance from the bottom plate to the bottom of the card slot to the distance from the bottom plate to the fixed plate is approximately 1:4.5-1:5, making the structure of the entire drip funnel storage rack more reasonable and the appearance more beautiful.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model is convenient for placing and storing dropping funnels in laboratories

[0016] The piston clamping opening on the fixed plate of the utility model is used for clamping the piston of the dripping funnel to prevent the piston from being adhered to the tube wall due to long-term contact.

[0017] The utility model can place the dropping funnel vertically, so that the water drops remaining in the bottle after cleaning can be easily dropped, thereby preventing the water drops remaining in the bottle body during the next experiment from causing inaccurate experimental data.

[0018] The position of the sliding fixing plate of the utility model can be fixed arbitrarily to meet the requirements of placing dropping funnels of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 This is a structural diagram of the sliding fixed plate of the utility model.

[0021] Figure 3 This is an application example diagram of the utility model.

[0022] In the figure: 1-bottom plate; 2-vertical plate; 3-fixed plate; 4-sliding fixed plate; 5-piston bayonet; 6-first semicircular bayonet; 7-second semicircular bayonet; 8-slot; DETAILED DESCRIPTION

[0023] The present invention is not limited by the above embodiments. The above embodiments are only for explaining the principle of the present invention. The present invention may have various changes and improvements without departing from the scope of the present invention. These changes and improvements all fall within the scope of the present invention to be protected.

[0024] The utility model comprises a base 1 and a vertical plate 2, wherein a fixed plate 3 and a sliding fixed plate 4 are arranged on the vertical plate, and two bayonet holes are arranged on the fixed plate 3, which are respectively a first semicircular bayonet hole 6 for clamping a pipe opening of a dropping funnel and a piston bayonet hole 5 for clamping a piston of the dropping funnel. The purpose of the existence of the piston pipe opening is to separate the piston from the dropping funnel to prevent adhesion.

[0025] The back of the sliding fixing plate 4 is connected with a screw rod, and the screw rod of the sliding fixing plate 4 is placed in the slot, and the position of the sliding fixing plate is adjusted according to the size of the dropping funnel. After finding a suitable position, tighten the butterfly nut to fix it. The height of the sliding fixing plate 4 can be adjusted at any time.

[0026] Application Example 1: After using the dropping funnel, simply clean it, remove the dropping funnel piston, place it on the piston snap-on socket 5, snap the tube mouth of the dropping funnel into the first semicircular snap-on socket 6, adjust the height of the sliding fixing plate 4 relative to the base 1 according to the size of the dropping funnel, and then snap the bottle body into the second semicircular snap-on socket 7 to fix it.

Claims

1. A laboratory dropping funnel storage rack, comprising a base, a vertical plate, a fixed plate, a sliding fixed plate, a bayonet, and a slot; the vertical plate is placed vertically with the bottom plate, and the fixed plate and the sliding fixed plate are placed vertically with the vertical plate respectively; the fixed plate is provided with two bayonet, namely a piston bayonet and a first semicircular bayonet, wherein: The piston bayonet is where the piston of the dropping funnel is placed, and the first semicircular bayonet is where the tube mouth of the dropping funnel is placed; a bayonet is provided on the sliding fixed plate, which is the second semicircular bayonet, and the second semicircular bayonet is where the plug of the dropping funnel is placed; the sliding fixed plate is connected to a screw rod and is fixed in the slot as a whole under the action of a butterfly nut; the slot is located directly below the first semicircular bayonet and is distributed symmetrically with the center.

2. A laboratory dropping funnel storage rack according to claim 1, characterized in that: The fixed plate is located at 4 / 1 of the top of the vertical plate, and the sliding range of the sliding fixed plate is 1 / 4 to 2 / 1 from the bottom; the three groups of first semicircular bayonet are distributed symmetrically from the center; the piston bayonet is located 5-8 cm to the left of the first semicircular bayonet; the first semicircular bayonet corresponds to the second semicircular bayonet up and down; the radius ratio of the first semicircular bayonet on the fixed plate and the second semicircular bayonet on the sliding fixed plate is 1:1.2-1:1.3; the radius ratio of the piston bayonet and the first semicircular bayonet is 0.7:1-0.8:1, and the thickness ratio of the sliding fixed plate and the fixed plate is 1:1.2-1:1.3; the ratio of the distance from the bottom plate to the bottom of the slot to the distance from the bottom plate to the top of the slot is 1:2.5-1:3; the ratio of the distance from the bottom plate to the bottom of the slot to the distance from the bottom plate to the fixed plate is 1:4.5-1:5.

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