CN211274756U

CN211274756U - Test tube clamping device for chemistry experiments

Info

Publication number: CN211274756U
Application number: CN201922068135.2U
Authority: CN
Inventors: 胡妍雨
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-08-18
Anticipated expiration: 2029-11-26

Abstract

The utility model belongs to the field of chemical experiments, in particular to a test tube clamping device for chemical experiments, which comprises a base and a clamping frame, wherein a chute is arranged in the fixing frame, a sliding block is arranged on the fixing frame in a sliding way through the chute, and a limit groove is arranged on the sliding block in a penetrating way; two groups of connecting columns are fixed inside the clamping frame, a spring is fixedly arranged between the clamping frame and the clamping block, an extension rod is fixed at the center of one side of the clamping frame, a plurality of groups of limiting blocks are fixed on the outer side of one end of the extension rod at equal angles, and the limiting blocks arranged on the extension rod are correspondingly arranged inside the limiting grooves one by one; the test tube quantity that uses according to the experiment needs takes out the holding frame that corresponds quantity, will contain different test tubes and fix between two sets of grip blocks through the mode of gliding, with the fixed back of test tube, according to different material processing methods, adjusts the angle between test tube and the horizontal plane.

Description

Test tube clamping device for chemistry experiments

Technical Field

The utility model belongs to chemistry experiment field especially relates to a test tube clamping device for chemistry experiments.

Background

Chemistry is one of natural science, and the science of creating new substances by researching the composition, properties, structure and change rules of substances on the molecular and atomic level needs a large amount of chemical experiments in the process of creating.

Present chemical experiment when operating again, this chemical experiment instrument of test tube can all be used in most experiments, holds the material through the test tube, needs fix the test tube with the help of clamping device, then through heating or condensing the test tube, changes the physical properties of material in the test tube.

The prior art has the following problems:

1. one group of clamping devices can only clamp one group of test tubes, and the plurality of groups of clamping devices are inconvenient to fix during an experiment using a plurality of groups of test tubes;

2 the existing clamping device can not adjust the angle of the clamped test tube.

Disclosure of Invention

To solve the problems set forth in the background art described above. The utility model provides a test tube clamping device for chemistry experiments.

In order to achieve the above object, the utility model provides a following technical scheme: a test tube clamping device for chemical experiments comprises a base and a clamping frame, wherein two groups of supporting rods are vertically fixed above the base, a fixing frame is welded at the other end of each supporting rod, a sliding groove is formed in the fixing frame, a sliding block is slidably mounted on the fixing frame through the sliding groove, and a limiting groove is formed in the sliding block in a penetrating mode;

two groups of connecting columns are fixed inside the clamping frame, two groups of clamping blocks are symmetrically arranged at hollow positions in the middle of the clamping frame, a connecting sleeve is fixed at the center of the convex side surface of each clamping block, the connecting columns are slidably mounted inside the connecting sleeve, and a spring is fixedly arranged between the clamping frame and the clamping blocks and surrounds the connecting columns and the connecting sleeve;

the clamping frame is characterized in that an extension rod is fixed at the center of one side of the clamping frame, a plurality of groups of limiting blocks are fixed at the outer side of one end of the extension rod at equal angles, and the limiting blocks arranged on the extension rod are installed in the limiting grooves in a one-to-one correspondence mode.

As the utility model relates to a test tube clamping device is preferred for chemistry experiments, the cross sectional dimension of spout with the cross sectional dimension of slider is identical, the slider is provided with the multiunit, the slider with constitute sliding structure between the mount.

As the utility model relates to a test tube clamping device is preferred for chemistry experiments, the holding frame with formula structure as an organic whole between the spliced pole, the outside dimension of spliced pole with the inside dimension of adapter sleeve is identical, the holding frame with constitute sliding construction between the grip block.

As the utility model relates to a test tube clamping device for chemistry experiments is preferred, the shape of the concave side of grip block is narrow down for wide, the grip block passes through the spring with constitute extending structure between the holding frame.

As the utility model relates to a test tube clamping device for chemistry experiments is preferred, the stopper is three horn shapes, the stopper with formula structure as an organic whole between the extension rod, the extension rod passes through the stopper with the spacing groove with constitute block structure between the slider.

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

1. can adjust adjacent test tube according to the step length of a set of experiment and carry out the distance, drive the slider through the extension rod and slide in the inside of spout, and then change the relative distance between slider and the mount to make the distance between the adjacent test tube change, make the device be applicable to the experiment of different step lengths.

2. The test tube quantity that uses according to the experiment needs takes out the holding frame that corresponds quantity, will contain different test tubes and fix between two sets of grip blocks through the mode of gliding, with the fixed back of test tube, according to different material processing methods, adjusts the angle between test tube and the horizontal plane.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural view of the device of the present invention in a non-use state;

FIG. 3 is a schematic view of the cross-sectional connection structure of the middle slide block and the holding frame of the present invention;

fig. 4 is a schematic view of a part of an enlarged structure at a in fig. 3 according to the present invention.

In the figure: 1. a base; 2. a support bar; 3. a fixed mount; 4. a chute; 5. a slider; 6. a limiting groove; 7. a clamping frame; 8. connecting columns; 9. a clamping block; 10. connecting sleeves; 11. a spring; 12. an extension pole; 13. and a limiting block.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a test tube clamping device for chemical experiments comprises a base 1 and a clamping frame 7, wherein two groups of supporting rods 2 are vertically fixed above the base 1, a fixing frame 3 is welded at the other end of each supporting rod 2, a sliding groove 4 is formed in the fixing frame 3, a sliding block 5 is slidably mounted on the fixing frame 3 through the sliding groove 4, and a limiting groove 6 is formed in the sliding block 5 in a penetrating manner;

two groups of connecting columns 8 are fixed inside the clamping frame 7, two groups of clamping blocks 9 are symmetrically arranged at hollow positions in the middle of the clamping frame 7, a connecting sleeve 10 is fixed at the center of the convex side surface of each clamping block 9, the connecting columns 8 are slidably arranged inside the connecting sleeve 10, a spring 11 is fixedly arranged between the clamping frame 7 and the clamping blocks 9, and the spring 11 surrounds the connecting columns 8 and the outer sides of the connecting sleeves 10;

an extension rod 12 is fixed at the center of one side of the clamping frame 7, a plurality of groups of limiting blocks 13 are fixed at the outer side of one end of the extension rod 12 at equal angles, and the limiting blocks 13 arranged on the extension rod 12 are correspondingly arranged in the limiting grooves 6 one by one.

In this embodiment: test tube quantity that needs to use according to the experiment, take out the holding frame 7 that corresponds quantity, the mode that will contain different test tubes through the gliding is fixed between two sets of grip blocks 9, with the fixed back of test tube, it is different according to the mode of handling different materials, adjust the angle between test tube and the horizontal plane, can be according to the step length of a set of experiment, it carries out the distance to adjust adjacent test tube, drive slider 5 through extension rod 12 and slide in the inside of spout 4, and then change the relative distance between slider 5 and the mount 3, thereby make the distance between the adjacent test tube change, make the device be applicable to the experiment of different step lengths.

Specifically, the sectional dimension of the sliding groove 4 is matched with that of the sliding block 5, a plurality of groups of sliding blocks 5 are arranged, and a sliding structure is formed between the sliding block 5 and the fixed frame 3.

In this embodiment: through the multiunit slider 5 that sets up, can install multiunit test tube clamping device on mount 3 through slider 5, through the position of slider 5 that slides, change the distance between the clamping device.

Specifically, the clamping frame 7 and the connecting column 8 are of an integrated structure, the external size of the connecting column 8 is matched with the internal size of the connecting sleeve 10, and a sliding structure is formed between the clamping frame 7 and the clamping block 9.

In this embodiment: through the cooperation use between spliced pole 8 and the adapter sleeve 10, make and be connected fixedly between holding frame 7 and the grip block 9, make holding frame 7 and grip block 9 make up into a set of test tube clamping device.

Specifically, the concave side surface of the clamping block 9 is wide at the top and narrow at the bottom, and the clamping block 9 and the clamping frame 7 form a telescopic structure through a spring 11.

In this embodiment: the structure setting of grip block 9 with the help of two sets of grip blocks 9, makes the test tube fix between two sets of grip blocks 9 through the mode of gliding to through spring 11's effect, fix the test tube.

Specifically, stopper 13 is the triangle form, formula structure as an organic whole between stopper 13 and the extension rod 12, and extension rod 12 passes through stopper 13 and constitutes the block structure between spacing groove 6 and the slider 5.

In this embodiment: through installing stopper 13 in the inside of spacing groove 6, rotate extension rod 12, make the stopper 13 of extension rod 12 one end setting install the inside of spacing groove 6 with different angles, and then make the contained angle between holding frame 7 and the horizontal plane change to make fixed test tube can become different contained angles with the horizontal plane.

The utility model discloses a theory of operation and use flow: according to the number of test tubes required to be used in an experiment, the clamping frames 7 with corresponding number are taken out, different test tubes are fixed between the two groups of clamping blocks 9 in a gliding mode, after the test tubes are fixed, the angle between the test tubes and the horizontal plane is adjusted according to different processing modes of different materials, for example, the test tubes required to be heated are clamped into the limiting grooves 6 at different angles by the limiting blocks 13 arranged at one ends of the extension rods 12, so that the clamping frames 7 and the horizontal plane form 45 degrees, further the contact area of the test tubes and flames on the alcohol lamp is increased, the heating efficiency is improved, when the water pipe is required to be subjected to water bath, the clamping frames 7 and the horizontal plane are leveled by the matching between the limiting blocks 13 and the limiting grooves 6, the test tubes are conveniently subjected to uniform water bath, meanwhile, the distance between the adjacent test tubes can be adjusted according to the length of a group of experiments, the sliding blocks 5 are driven to slide, and then change the relative distance between slider 5 and the mount 3 to make the distance between the adjacent test tube change, make the device be applicable to the experiment of different step lengths.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a test tube clamping device for chemistry experiments, includes base (1) and holding frame (7), its characterized in that: two groups of supporting rods (2) are vertically fixed above the base (1), a fixing frame (3) is welded at the other end of each supporting rod (2), a sliding groove (4) is formed in each fixing frame (3), a sliding block (5) is slidably mounted on each fixing frame (3) through each sliding groove (4), and a limiting groove (6) is formed in each sliding block (5) in a penetrating mode;

two groups of connecting columns (8) are fixed inside the clamping frame (7), two groups of clamping blocks (9) are symmetrically arranged at hollow positions in the middle of the clamping frame (7), a connecting sleeve (10) is fixed at the center of the convex side surface of each clamping block (9), the connecting columns (8) are slidably arranged inside the connecting sleeve (10), a spring (11) is fixedly arranged between the clamping frame (7) and each clamping block (9), and the spring (11) surrounds the connecting columns (8) and the connecting sleeve (10);

the clamping frame is characterized in that an extension rod (12) is fixed at the center of one side of the clamping frame (7), a plurality of groups of limiting blocks (13) are fixed at the outer side of one end of the extension rod (12) at equal angles, and the limiting blocks (13) arranged on the extension rod (12) are installed in the limiting grooves (6) in a one-to-one correspondence mode.

2. A test tube holding apparatus for chemical experiments according to claim 1, wherein: the cross-sectional dimension of the sliding chute (4) is matched with that of the sliding block (5), a plurality of groups of sliding blocks (5) are arranged, and a sliding structure is formed between each sliding block (5) and the fixing frame (3).

3. A test tube holding apparatus for chemical experiments according to claim 1, wherein: the clamping frame (7) and the connecting column (8) are of an integrated structure, the external size of the connecting column (8) is matched with the internal size of the connecting sleeve (10), and a sliding structure is formed between the clamping frame (7) and the clamping block (9).

4. A test tube holding apparatus for chemical experiments according to claim 1, wherein: the shape of the concave side surface of the clamping block (9) is wide at the top and narrow at the bottom, and the clamping block (9) passes through the spring (11) and the clamping frame (7) to form a telescopic structure.

5. A test tube holding apparatus for chemical experiments according to claim 1, wherein: stopper (13) are three horn shapes, stopper (13) with formula structure as an organic whole between extension rod (12), extension rod (12) pass through stopper (13) with spacing groove (6) with constitute the block structure between slider (5).