CN211586734U

CN211586734U - Collapsible test-tube rack is used in chemistry teaching

Info

Publication number: CN211586734U
Application number: CN201922488083.4U
Authority: CN
Inventors: 周文水
Original assignee: Zaozhuang Vocational College
Current assignee: Zaozhuang Vocational College
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-09-29
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a foldable test tube rack for chemical teaching, relating to the field of chemical instruments, aiming at the problems that the prior test tube rack has larger volume, less test tube placement amount, no folding, inconvenient carrying and easy bumping and breaking during experiments, the utility model provides a proposal that the bottom end of the first base is articulated with a second base, the top end of one side of the first base far away from the second base is articulated with a folding bracket, one side of the folding bracket near the second base is fixedly connected with two fixed test tube plates with the same structure, the utility model has novel structure, and the first base, the second base, the fixed test tube plate and the movable test tube plate of the device can be folded, is convenient for a user to carry and store, is provided with a folding slide bar for reinforcing, and an inverted T-shaped groove is convenient for the fixed placement of a test tube column, and is provided with two groups of fixed test tube plates and the movable test tube plate for fixing, the device not only has convenience and practicality, more has stability and protectiveness, suitable popularization.

Description

Collapsible test-tube rack is used in chemistry teaching

Technical Field

The utility model relates to a chemical instrumentation field especially relates to a collapsible test-tube rack is used in chemistry teaching.

Background

At present, in the field of chemical instruments, teaching of chemical knowledge is one of the most important links, and chemical instruments are necessary basic equipment, in particular to a test tube rack, wherein the test tube rack is the most basic experimental instrument of a chemical laboratory for placing and airing test tubes, and small wood columns and small holes with corresponding numbers are attached to the test tube rack. The foraminous tube may be placed upright for use or to allow continued observation of the reaction. The cleaned test tube with the column can be placed upside down for air drying.

But current test-tube rack is bulky, and the test tube is placed the volume less, and can't fold, and inconvenient carrying easily bumps during the experiment and falls to smash, consequently, in order to solve this type of problem, we have proposed a collapsible test-tube rack for chemistry teaching.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of collapsible test-tube rack is used in chemistry teaching has solved but current test-tube rack volume great, and the test tube volume of placing is less, and can't fold, and inconvenient carrying easily bumps during the experiment and smashes the problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a foldable test tube rack for chemistry teaching comprises a first base, wherein the bottom end of the first base is hinged with a second base, the top end of one side of the first base, which is far away from the second base, is hinged with a foldable support, one side of the foldable support, which is near to the second base, is fixedly connected with two fixed test tube plates with the same structure, the center of one end, which is far away from the foldable support, of each fixed test tube plate is provided with a screw hole, a screw is rotatably installed in the screw hole, the bottom end, which is near to one side of the fixed test tube plates, of each screw is provided with a movable test tube plate, one end, which is far away from the first base, of the second base is hinged inwards with a support, one side, which is near to the movable test tube plates, of each support is fixedly connected with a clamping groove block, the top ends, which are far away from, be provided with the rectangle billet in the type of falling T recess, the rectangle billet is located the rectangular channel fixedly connected with connecting rod, one side fixed mounting that the connecting rod is close to fixed examination tube board and removal examination tube board has examination tubular column, first base and second base are close to fixed examination tube board and the top fixed mounting who removes examination tube board have transparent plastic pad (keep away from one side of examination tubular column and set up two shallow slots that the structure is the same, slidable mounting has the slider in the shallow slot, two the slider articulates there is the folding slide bar that the structure is different, one side that the slider was kept away from to folding slide bar is connected with the support rotation.

Preferably, the plate surfaces of the fixed test tube plate and the movable test tube plate are provided with uniformly distributed round holes.

Preferably, the first base and the second base are provided with drain holes at positions close to the test tube column.

Preferably, the support and the folding support are provided with hand-held holes close to the side walls of the fixed test tube plate and the movable test tube plate.

Preferably, the bottom ends of the first base and the second base are fixedly provided with anti-skid protection pads.

The utility model has the advantages that:

1. the device is provided with a first base and a second base which can be folded, and a fixed test tube plate and a movable test tube plate at the upper ends of the first base and the second base can be folded in a rotating way, so that the occupied area is effectively reduced after the device is folded, the device is convenient to carry or store by a user, the device is convenient to open and assemble, and a folding slide bar is arranged for reinforcement, so that the device has convenience and practicability;

2. the effectual usable floor area that reduces of rotatable test tube column of placing that the device set up, the type of falling T recess that sets up simultaneously is convenient for the test tube column to fix and is placed, and the transparent plastic pad of first base and second base setting avoids the problem that the too big broken harm that causes of dynamics when the test tube is placed, and is provided with two sets of fixed test tube boards and removes the test tube board and fixes, and the device has more stability and protectiveness.

To sum up, the device's first base, second base, fixed test tube board and removal test tube board are all collapsible, and the person of being convenient for carries the storage, are provided with folding slide bar and consolidate, and the type of falling T recess is convenient for the test tube post to be fixed to be placed, and transparent plastic pad avoids the test tube broken, and is provided with two sets of fixed test tube boards and removes the test tube board and fix, and the device not only has convenient and practicality, more possesses stability and protectiveness, suitable popularization.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the back structure of the present invention.

Fig. 3 is a schematic view of the inverted T-shaped groove structure of the present invention.

Fig. 4 is a schematic top view of the present invention.

Fig. 5 is a schematic view of the folding structure of the present invention.

Reference numbers in the figures: the test tube comprises a first base 1, a folding support 2, a folding slide rod 3, a fixed test tube plate 4, screws 5, a movable test tube plate 6, a clamping groove block 7, a support 8, an inverted T-shaped groove 9, a second base 10, a test tube column 11, a connecting rod 12, a rectangular wood block 13, a transparent plastic pad 14 and a sliding block 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, a foldable test tube rack for chemistry teaching comprises a first base 1, a second base 10 is hinged to the bottom end of the first base 1, a foldable support 2 is hinged to the top end of one side of the first base 1 far away from the second base 10, two fixed test tube plates 4 with the same structure are fixedly connected to one side of the foldable support 2 close to the second base 10, a screw hole is formed in the center of one end of each fixed test tube plate 4 far away from the foldable support 2, a screw 5 is rotatably installed in the screw hole, a movable test tube plate 6 is arranged at the bottom end of one side of the screw 5 close to the fixed test tube plate 4, a support 8 is hinged inwards to one end of the second base 10 far away from the first base 1, a clamping groove block 7 is fixedly connected to one side of the support 8 close to the movable test tube plate 6, rectangular grooves are formed in the top ends of one side of the first base 1 and one side of, the two sides of the rectangular groove close to the support 8 and the folding support 2 are provided with inverted T-shaped grooves 9, rectangular wood blocks 13 are arranged in the inverted T-shaped grooves 9, the rectangular wood blocks 13 are fixedly connected with connecting rods 12 in the rectangular groove, one sides of the connecting rods 12 close to the fixed test tube plate 4 and the movable test tube plate 6 are fixedly provided with test tube columns 11, the top ends of the first base 1 and the second base 10 close to the fixed test tube plate 4 and the movable test tube plate 6 are fixedly provided with transparent plastic pads 14, one sides of the transparent plastic pads 14 far away from the test tube columns 11 are provided with two shallow grooves with the same structure, slide blocks 15 are slidably arranged in the shallow grooves, the two slide blocks 15 are hinged with folding slide bars 3 with different structures, one sides of the folding slide bars 3 far away from the slide blocks 15 are rotatably connected with the support, and the surfaces of the fixed test tube, the positions of the first base 1 and the second base 10, which are close to the test tube column 11, are provided with drain holes, the side walls of the support 8 and the folding support 2, which are close to the fixed test tube plate 4 and the movable test tube plate 6, are provided with hand-held holes, and anti-skidding protection pads are fixedly arranged at the bottom ends of the first base 1 and the second base 10.

The working principle is as follows: when the device is used, a second base 10 with the hinged bottom end is firstly opened by a first base 1 to be placed in a horizontal position, then a support 8 hinged inside one side of the second base 10 is opened along the vertical direction of the second base 10, then a folded folding support 2 is opened by one side of the first base 1, two clamping groove blocks 7 which are folded slide by a slide block 15 in a shallow groove to one side, the opened folding support 2 is fixed by the clamping groove blocks 7, then a fixed test tube plate 4 connected with the folding support 2 rotates a movable test tube plate 6 at the lower end to one side close to the support 8 by a screw 5, and simultaneously the movable test tube plate 6 is moved to the clamping groove blocks 7 at the inner side of the support 8 for fixing, test tubes are placed into the device by round holes of the fixed test tube plate 4 and the movable test tube plate 6 after the device is fixed, transparent plastic pads at the top ends of the first base 1 and the second base 10 have the effect of preventing the test tubes from being, when the test tube needs to dry after using, move and rotate the rectangle billet 13 that connecting rod 12 connects to the top of the type of falling T recess 9 by connecting rod 12 and place after making test tube post 11 be vertical direction in the type of falling T recess 9, after that with the test tube put to test tube post 11 can, when the device does not use, rotate and remove test tube board 6 to the folding support of one side 2 and the slip draw-in groove piece 7 of fixed test tube board 4, folding support 8 at last and second base 10 can to first base 1 one side.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a collapsible test-tube rack is used in chemistry teaching, includes first base (1), its characterized in that, first base (1) bottom articulates there is second base (10), one side top that second base (10) were kept away from in first base (1) articulates there is folding support (2), one side fixedly connected with two fixed test tube boards (4) that the structure is the same of folding support (2) is close to second base (10), the screw has been seted up at the one end center that folding support (2) were kept away from in fixed test tube board (4), and the screw internal rotation is installed screw (5), one side bottom that screw (5) are close to fixed test tube board (4) is provided with removal test tube board (6), the one end that first base (1) was kept away from in second base (10) inwards articulates there is support (8), one side fixedly connected with draw-in groove piece (7) that support (8) are close to removal test tube board (6), the top ends of one sides of the first base (1) and the second base (10) far away from the fixed test tube plate (4) and the movable test tube plate (6) are provided with rectangular grooves, the two sides of the rectangular grooves close to the bracket (8) and the folding bracket (2) are provided with inverted T-shaped grooves (9), rectangular wood blocks (13) are arranged in the inverted T-shaped grooves (9), the rectangular wood blocks (13) are positioned in the rectangular grooves and fixedly connected with connecting rods (12), one sides of the connecting rods (12) close to the fixed test tube plate (4) and the movable test tube plate (6) are fixedly provided with test tube columns (11), the top ends of the first base (1) and the second base (10) close to the fixed test tube plate (4) and the movable test tube plate (6) are fixedly provided with transparent plastic pads (14), one sides of the transparent plastic pads (14) far away from the test tube columns (11) are provided with two shallow grooves with, sliding mounting has slider (15), two in the shallow slot slider (15) articulate folding slide bar (3) that have the structure difference, folding slide bar (3) keep away from one side and the support rotation connection of slider (15).

2. The foldable test tube rack for chemistry teaching as claimed in claim 1, wherein the fixed test tube plate (4) and the movable test tube plate (6) are provided with uniformly distributed circular holes on their surfaces.

3. The foldable test tube rack for chemistry teaching as claimed in claim 1, characterized in that the first base (1) and the second base (10) have drainage holes near the test tube column (11).

4. The foldable test tube rack for chemistry teaching as claimed in claim 1, characterized in that the side walls of the bracket (8) and the foldable bracket (2) close to the fixed test tube plate (4) and the movable test tube plate (6) are provided with hand-held holes.

5. The foldable test tube rack for chemistry teaching as claimed in claim 1, characterized in that the bottom ends of the first base (1) and the second base (10) are fixedly provided with anti-skid pads.