CN210079580U

CN210079580U - Novel support for student's chemistry experiments

Info

Publication number: CN210079580U
Application number: CN201920028391.6U
Authority: CN
Inventors: 胡志帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-08
Filing date: 2019-01-08
Publication date: 2020-02-18
Anticipated expiration: 2029-01-08

Abstract

The utility model belongs to the technical field of student's apparatus technique and specifically relates to a novel support is used in student's chemistry experiments, including base, support montant, location rack and test tube clamp, base internal thread sleeve upper portion rigid coupling has first bevel gear, and threaded sleeve top spiro union has the threaded rod, and the threaded rod has the alcohol lamp stand through the bracing piece rigid coupling, it has the bull stick to peg graft in the base right side second through-hole, and the bull stick left end has the second bevel gear admittedly, two slide drums have been cup jointed on the support montant, and the equal rigid coupling of two slide drum right-hand members has the connection horizontal pole, and the horizontal pole right-hand member rigid coupling has the beaker seat to be connected to the below. The utility model has the advantages of reasonable design, can adjust the height of alcohol burner flame through rotating the turning handle, the angle of test tube clamp can be adjusted to make the test tube clamp slope press from both sides and get the test tube, pull the upper and lower position that the traction block can adjust slide cartridge and locate right, loosen the traction block, then the height that beaker seat and test tube clamp located is fixed.

Description

Novel support for student's chemistry experiments

Technical Field

The utility model belongs to the technical field of student's apparatus technique and specifically relates to a novel support is used in student's chemistry experiments.

Background

Chemistry is one of natural science, and the subject that middle school student must master at present, and chemical experiment is the important mode of chemical research, in order to deepen student's understanding to chemical experiment, improves student's enthusiasm of learning, adapts to the requirement of contemporary quality of education, and school often organizes student oneself and carries out chemical experiment, for this reason, needs to use special chemical experiment support to operations such as heating. Common experiment support equipment is more troublesome, and hardly guarantees to adapt to the different requirements of multiple experiment, for solving this problem, in the chinese utility model patent of bulletin number CN207357189U, has announced a modular high school chemistry miniature experiment appearance, through being equipped with connecting slot, steel backing plate and telescopic link, has satisfied the multiple requirement of student's chemistry experiment, through being equipped with first lantern ring and knob to conveniently operate the student and carry out fast assembly to the device. However, rely on the lantern ring and knob to fix for the knob of screwing off is all needed to the regulation of device height each time, and is more troublesome, and common, need to incline certain angle with the test tube when liquid heating in to test tube, and in this device, splint and joint ring make the test tube by vertical placing, the experiment of being not convenient for go on.

Disclosure of Invention

The utility model aims at overcoming above-mentioned technical shortcoming and providing a novel support for student's chemistry experiments, can adjust the height of alcohol burner flame through rotating the turning handle, the angle of test-tube clamp can be adjusted to make the test-tube clamp slope press from both sides get the test tube, pull the upper and lower position that the traction block can adjust slide cartridge and locate right, loosen the traction block, then the height that beaker seat and test-tube clamp located is fixed.

The utility model provides a technical scheme that technical problem adopted does: a novel bracket for student chemical experiments comprises a base, a vertical supporting rod, a positioning rack and a test tube clamp, wherein the base is hollow, the right part of the inner bottom surface is connected with a threaded sleeve through a bearing, the upper part of the threaded sleeve is fixedly connected with a first bevel gear, a threaded rod is screwed in the threaded sleeve, the upper end of the threaded rod is fixedly connected with a supporting rod, the supporting rod passes through a first through hole on the base, the upper end surface of the supporting rod is fixedly connected with an alcohol lamp holder, the left side and the right side of the supporting rod are fixedly connected with a limiting strip, the base is provided with limiting holes matched with the limiting strips on the left side and the right side of the first through hole so as to prevent the supporting rod from rotating and further ensure that the threaded rod cannot rotate, the right side of the base is provided with a second through hole, a rotating rod is inserted in the second through hole, an annular clamping groove matched with the second through hole is arranged at the position of the rotating rod, the right end of the right end is fixedly connected with a rotating handle on the right side of the base, the rotating handle is rotated to drive the second bevel gear to rotate through the rotating rod, and further drive the threaded sleeve to rotate through the first bevel gear; the supporting vertical rod is fixedly connected to the left rear part of the upper end surface of the base, annular teeth are arranged on the outer wall of the supporting vertical rod, two sliding barrels are sleeved on the supporting vertical rod, connecting cross rods are fixedly connected to the right end surfaces of the two sliding barrels, the left side parts of the connecting cross rods are hollow, strip-shaped through grooves are formed in the upper end surfaces of the connecting cross rods, traction rods are inserted in the connecting cross rods, the left ends of the traction rods penetrate through the sliding barrels and are fixedly connected with positioning racks, the right ends of the traction rods are fixedly connected with traction blocks, the left ends of the positioning racks are meshed with the annular teeth, the right ends of the traction blocks are fixedly connected with supporting springs, the right ends of the supporting springs are fixedly connected with the inner walls of the right sides of the connecting cross rods, the upper ends of the traction blocks penetrate through the strip-shaped through grooves, the positioning racks are subjected to leftward force from the supporting springs, can adjust the upper and lower position that the slide cartridge located this moment, the horizontal pole right-hand member rigid coupling is connected to the below has the beaker seat, and the rigid coupling has the support frame in the middle of the beaker seat, can place the asbestos gauge of heating experiment usefulness on the support frame, simultaneously with the beaker seat bearing the beaker together, the horizontal pole right-hand member rigid coupling is connected to the top has the head rod, the test tube clamp left end rigid coupling has the second connecting rod, it has the bolt to peg graft between head rod and the second connecting rod, and bolt front end threaded connection has the first nut, and the test tube clamp is used for pressing from both sides and gets fixed test tube, and head rod and second connecting rod pass through the bolt and articulate, can adjust its relative angle to make the test tube clamp slope press from both sides and get the test tube, be convenient for heat the test tube, screw up the.

Furthermore, the equal rigid coupling in terminal surface four corners has the stabilizer blade under the base to the stability that the reinforcing base was placed.

Furthermore, a drawer is inserted into the front end face of the base, the front end face of the drawer is fixedly connected with a handle, and a plurality of common experimental tools can be placed in the drawer.

Furthermore, the upper end face of the alcohol lamp holder is provided with a groove, so that the alcohol lamp can be placed more stably, and the side turning accident of the alcohol lamp can be prevented.

Furthermore, a rubber pad is fixedly connected to a clamping opening of the test tube clamp to prevent the test tube clamp from damaging the test tube.

The utility model discloses the beneficial effect who has is: the utility model has reasonable structural design, the threaded sleeve can be driven to rotate by rotating the rotating handle, and the height of the threaded rod can be adjusted at the moment because the threaded rod can not rotate, so that the height of the alcohol lamp holder is adjusted, the alcohol lamp is placed on the alcohol lamp holder, and the height of the flame of the alcohol lamp can be adjusted by rotating the rotating handle; the supporting frame can be used for placing an asbestos net for a heating experiment, and simultaneously supporting the beaker together with the beaker seat, the test tube clamp is used for clamping and fixing the test tube, and the angle of the test tube clamp can be adjusted so as to enable the test tube clamp to clamp the test tube in an inclined manner and facilitate heating of the test tube; the traction block is pulled rightwards to enable the positioning rack to move rightwards and to be separated from the annular teeth on the supporting vertical rod, the upper and lower positions of the sliding barrel can be adjusted at the moment, the traction block is loosened, the positioning rack is engaged with the annular teeth on the supporting vertical rod under the action of the leftward force of the supporting spring, and the sliding barrel cannot slide up and down at the moment so as to fix the heights of the beaker seat and the test tube clamp; the utility model discloses usable slide cartridge assembles fast, and its altitude mixture control is very convenient, is suitable for various chemistry experiments.

Drawings

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

Figure 2 is the inside schematic structure of base of the utility model.

Fig. 3 is a schematic structural diagram of the first through hole of the present invention.

Fig. 4 is a schematic view of the internal structure of the slide cartridge of the present invention.

Fig. 5 is a schematic structural diagram of the first connecting rod and the second connecting rod of the present invention.

Detailed Description

The present invention will be described in detail below with reference to fig. 1 to 5.

As shown in figures 1-5, the utility model comprises a base 1, a vertical support rod 11, a positioning rack 14 and a test tube clamp 21, wherein the base 1 is hollow, the right part of the inner bottom surface is connected with a threaded sleeve 3 through a bearing 2, the upper part of the threaded sleeve 3 is fixedly connected with a first bevel gear 4, a threaded rod 5 is screwed in the threaded sleeve 3, the upper end of the threaded rod 5 is fixedly connected with a support rod 6, the support rod 6 passes through a first through hole 1-1 on the base 1 and the upper end surface of the support rod is fixedly connected with an alcohol lamp holder 7, the left side and the right side of the support rod 6 are fixedly connected with a spacing strip 6-1, the base 1 is provided with spacing holes 1-3 matched with the spacing strip 6-1 at the left side and the right side of the first through hole 1-1 so as to prevent the support rod 6 from rotating and further ensure that the threaded rod 5 cannot rotate, the right side of, an annular clamping groove 8-1 matched with the second through hole 1-2 is formed in the position of the second through hole 1-2 of the rotating rod 8 to prevent the rotating rod 8 from sliding left and right, a second bevel gear 9 meshed with the first bevel gear 4 is fixedly connected to the inner portion of the base 1 at the left end of the rotating rod 8, a rotating handle 10 is fixedly connected to the right side of the base 1 at the right end of the rotating rod 8, the rotating rod 8 can drive the second bevel gear 9 to rotate by rotating the rotating handle 10, the threaded sleeve 3 is driven to rotate by the first bevel gear 4, and the threaded rod 5 cannot rotate, so that the height of the threaded rod 5 can be adjusted at the moment, and the height of the alcohol lamp holder 7 is adjusted; the supporting vertical rod 11 is fixedly connected to the left rear part of the upper end surface of the base 1, the outer wall of the supporting vertical rod 11 is provided with annular teeth 11-1, the supporting vertical rod 11 is sleeved with two sliding barrels 12, the right end surfaces of the two sliding barrels 12 are fixedly connected with a connecting cross rod 13, the left side part of the connecting cross rod 13 is hollow, the upper end surface is provided with a strip-shaped through groove 13-1, a traction rod 15 is inserted in the connecting cross rod 13, the left end of the traction rod 15 penetrates through the sliding barrels 12 and is fixedly connected with a positioning rack 14, the right end of the traction rod is fixedly connected with a traction block 16, the left end of the positioning rack 14 is meshed with the annular teeth 11-1, the right end surface of the traction block 16 is fixedly connected with a supporting spring 17, the right end surface of the supporting spring 17 is fixedly connected with the right inner wall of the connecting cross rod 13, the upper end of the traction block 16, the right end of the upper connecting cross rod 13 is fixedly connected with a first connecting rod 20, the left end of the test tube clamp 21 is fixedly connected with a second connecting rod 22, a bolt 23 is inserted between the first connecting rod 20 and the second connecting rod 22, and the front end of the bolt 23 is in threaded connection with a shoe-shaped nut 24.

In this embodiment, all the four corners of the lower end surface of the base 1 are fixedly connected with support legs 25 to enhance the placing stability of the base 1.

In this embodiment, a drawer 26 is inserted into the front end surface of the base 1, the front end surface of the drawer 26 is fixedly connected with a handle 26-1, and some common experimental tools can be placed in the drawer 26.

In this embodiment, the upper end surface of the alcohol lamp holder 7 is provided with a groove 7-1, so that the alcohol lamp is more stably placed, and accidents caused by the side turning of the alcohol lamp are prevented.

In this embodiment, a rubber pad 21-1 is fixed to the opening of the tube clamp 21 to prevent the tube clamp 21 from damaging the test tube.

When the utility model is used, the alcohol burner is placed on the alcohol burner base 7, and the height of the flame of the alcohol burner can be adjusted by rotating the rotating handle 10; placing an asbestos net for heating experiments on a support frame 19, placing a beaker on a beaker seat 18, wherein a test tube clamp 21 can be used for clamping and fixing a test tube, a first connecting rod 20 and a second connecting rod 22 are hinged through a bolt 23, and the relative angle of the first connecting rod and the second connecting rod can be adjusted, so that the test tube clamp 21 can be inclined to clamp the test tube, the test tube can be heated conveniently, a shoe-shaped nut 24 is screwed to fix the current angle of the test tube clamp 21, when students do experiments, the test tube clamp 21 or the beaker seat 18 can be used as required, and the rest parts can be rotated to one side by virtue of a sliding barrel 12; the traction block 16 is pulled rightwards to enable the positioning rack 14 to move rightwards and separate from the annular teeth 11-1 on the supporting vertical rod 11, the up-down position of the sliding barrel 12 can be adjusted at the moment, the traction block 16 is loosened, the positioning rack 14 is forced leftwards by the supporting spring 17 to enable the positioning rack 14 to be meshed with the annular teeth 11-1 on the supporting vertical rod 11, and the sliding barrel 12 cannot slide vertically at the moment, so that the heights of the beaker seat 18 and the test tube clamp 21 are fixed.

Claims

1. The utility model provides a novel support for student's chemistry experiments, includes the base, supports montant, location rack and test tube clamp, its characterized in that: the base is hollow, the right part of the inner bottom surface is connected with a threaded sleeve through a bearing, the upper part of the threaded sleeve is fixedly connected with a first bevel gear, a threaded rod is screwed in the threaded sleeve, the upper end of the threaded rod is fixedly connected with a supporting rod, the supporting rod penetrates through a first through hole in the base, the upper end surface of the supporting rod is fixedly connected with an alcohol lamp holder, the left side and the right side of the supporting rod are fixedly connected with a limiting strip, the base is provided with a limiting hole matched with the limiting strip on the left side and the right side of the first through hole, a second through hole is formed in the right side of the base, a rotating rod is inserted in the second through hole, an annular clamping groove matched with the second through hole is formed in the second through hole, the left end of the rotating rod is fixedly connected with a second bevel gear meshed with the first bevel gear in the base, a rotating handle is fixedly connected, two smooth sections of thick bamboo have been cup jointed on the support montant, and the equal rigid coupling of two smooth section of thick bamboo right-hand member face has the connection horizontal pole, connect the inside cavity of horizontal pole left side part, the up end is equipped with the bar and leads to the groove, and it has the traction lever to connect the horizontal pole interpolation, and the traction lever left end passes smooth section of thick bamboo and rigid coupling has a location rack, right-hand member rigid coupling has the traction block, and location rack left end meshing annular tooth, traction block right-hand member face rigid coupling have supporting spring, horizontal pole right side inner wall is connected to supporting spring right-hand member face rigid coupling, the strip is led to the groove to the traction block upper end, and the horizontal pole right-hand member rigid coupling has a beaker seat in the middle of the beaker seat, and the horizontal pole right-hand member rigid coupling has the head rod above connecting, the test tube clamp left end rigid coupling has.

2. The novel bracket for student chemical experiments as claimed in claim 1, wherein: and four corners of the lower end surface of the base are fixedly connected with support legs.

3. The novel bracket for student chemical experiments as claimed in claim 1, wherein: the front end face of the base is inserted with a drawer, and the front end face of the drawer is fixedly connected with a handle.

4. The novel bracket for student chemical experiments as claimed in claim 1, wherein: the upper end face of the alcohol lamp holder is provided with a groove.

5. The novel bracket for student chemical experiments as claimed in claim 1, wherein: and a rubber pad is fixedly connected with the clamping opening of the test tube clamp.