CN211026416U

CN211026416U - Adjustable chemical experiment table of accomodating

Info

Publication number: CN211026416U
Application number: CN201921878482.5U
Authority: CN
Inventors: 魏雨诺
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-07-17
Anticipated expiration: 2029-11-01

Abstract

The utility model belongs to the technical field of teaching aid technique and specifically relates to an adjustable chemical experiment platform of accomodating, including base, bull stick and threaded rod, it has the bull stick to peg graft in the base, and the equal rigid coupling in the bull stick left and right sides has first bevel gear, the pivot of all pegging graft in the terminal surface through-hole under the base, pivot upper end rigid coupling second bevel gear, second bevel gear and the meshing of first bevel gear, terminal surface four corners is connected with the support leg through the damping hinge under the base, it has the lower supporting leg to go up the grafting of support leg lower extreme, and the rigid coupling has the connecting rod between the two lower supporting legs, connecting rod up end middle part rigid coupling has the threaded sleeve, and threaded sleeve upper portion. The utility model has the advantages of reasonable design, can the adjusting device height through rotating the turning handle, with fixing bolt follow the downthehole spiral-down of bolt, extract the tenon from the tenon downthehole, can be with going up supporting leg, under bracing leg and threaded sleeve, threaded rod together inwards folding this moment to accomodate the device, reduce the space and occupy.

Description

Adjustable chemical experiment table of accomodating

Technical Field

The utility model belongs to the technical field of teaching aid technique and specifically relates to an adjustable chemical experiment platform of accomodating.

Background

At present, schools can organize chemical experiments in order to deepen the understanding of students on the chemical experiments and improve the enthusiasm of the chemical learning of the students, and the chemical experiments often need to use alcohol lamps. Common use alcohol burner heating's experiment, it is direct on the mount to put the alcohol burner mostly, in order to utilize its flame heating beaker or test tube, but sometimes because alcohol burner flame crosses low or too high, make heating operating efficiency low, in the chinese utility model patent of publication number CN208494288U, a tripod for high school's chemistry experiments has been published, through rotating thread bush, the thread bush moves and then adjusts the height of fixed station on last threaded rod, too high or low excessively with adaptation alcohol burner flame distance, help going up the threaded rod through setting up first extension spring and reset and fold and can hang and put, practice thrift the place space. However, in the technical scheme, the three support legs of the tripod are independently adjusted, if the length of the three support legs is not uniform, the structure is easy to be unstable and even collapse is caused when the tripod is used, so that chemical is leaked, and accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above-mentioned technical shortcoming and providing an adjustable chemical experiment platform of accomodating, can adjusting device height through rotating the turning handle, with fixing bolt follow the downthehole spiral-down of bolt, extract the tenon from the tenon downthehole, can be with going up support leg, under bracing leg and threaded sleeve, threaded rod together inwards folding this moment to accomodate the device, reduce the space and occupy.

The utility model provides a technical scheme that technical problem adopted does: a chemical experiment table capable of being accommodated adjustably comprises a base, a rotating rod and a threaded rod, wherein a cavity is arranged at the lower part in the base, the rotating rod is inserted into the right side wall of the cavity of the base, the left end of the rotating rod is connected with the right side wall inside the cavity through a bearing, a rotating handle is fixedly connected at the right end of the rotating rod at the right side of the base, two first bevel gears are fixedly connected at the left side and the right side of the rotating rod in the cavity, a rotating shaft is inserted into the two through holes at the left side and the right side of the lower end surface of the base, a limiting ring is fixedly connected at the inner side surface of each through hole, an annular limiting groove is arranged at the outer side surface of each rotating shaft, the limiting rings are clamped in the annular limiting grooves to prevent the rotating shaft from moving up and down, a second bevel gear is fixedly connected at the upper end of each rotating shaft and, the connecting rods are fixedly connected between the front lower supporting leg and the rear lower supporting leg on the left side and the front lower supporting leg and the rear lower supporting leg on the right side, the middle part of the upper end face of each connecting rod is fixedly connected with a threaded sleeve, the upper part of the threaded sleeve is in threaded connection with a threaded rod, four corners of the top end of the threaded rod are provided with sliding grooves, the top end of the threaded rod is sleeved with a movable sleeve, four sliding blocks are fixedly connected with four corners of the bottom end of the inner side face of the movable sleeve, the sliding blocks are clamped in the sliding grooves, so that the threaded rod can move together with the movable sleeve, the middle part of the upper end face of the movable sleeve is fixedly connected with a tenon with a square cross section, the lower part of the rotating shaft is provided with a mortise with a square cross section, the tenon is made of a magnet, the rotating shaft, the movable sleeve and the threaded rod are, because the lower end of the threaded sleeve is fixedly connected to the connecting rod, when the threaded rod rotates, the threaded sleeve drives the connecting rod to move up and down together, the distance between the lower supporting leg and the upper supporting leg is changed, the height of the device is adjusted, the tenon is pulled out from the mortise, the movable sleeve slides downwards to enable the movable sleeve to be attracted to the threaded rod by the magnetism of the tenon, at the moment, the upper supporting leg, the lower supporting leg, the threaded sleeve and the threaded rod can be folded inwards together to facilitate the storage of the device and reduce the space occupation, the outward side of the top end of the upper supporting leg is provided with a bolt hole, the lower end surface of the base is fixedly connected with a fixing plate outside the four upper supporting legs, the fixing bolt is connected with a fixing bolt through threads on the fixing plate, the inward side of the fixing bolt is connected with the bolt hole on the top end of the upper supporting leg, the upper supporting leg can be fixed by the fixing, the device can be folded and stored.

Furthermore, the upper end face of the base is provided with a groove, so that the alcohol lamp can be conveniently placed on the upper end face of the base, and the alcohol lamp is prevented from sliding off.

Furthermore, the lower end face of the lower supporting leg is fixedly connected with a rubber non-slip mat so as to enhance the friction force between the lower supporting leg and the ground and prevent the device from slipping.

The utility model discloses the beneficial effect who has is: the utility model has the advantages of reasonable design, the tenon relies on self magnetism not to come off from the mortise, so that when the bull stick passes through first bevel gear and second bevel gear drive pivot rotation, movable sleeve and threaded rod will rotate thereupon, because threaded sleeve lower extreme rigid coupling is on the connecting rod, when the threaded rod rotates, threaded sleeve will drive the same up-and-down motion of connecting rod, distance between this time lower supporting leg and the last supporting leg is changed promptly, the device height is adjusted promptly, with fixing bolt follow the downthehole screw-down of bolt, extract the tenon from the mortise, can be with last supporting leg this moment, under bracing leg and threaded sleeve, the threaded rod is together folding inwards, so that accomodate the device, reduce the space and occupy.

Drawings

Figure 1 is the internal structure schematic diagram of the utility model when in placement.

Figure 2 is the utility model discloses the inner structure schematic diagram when accomodating.

Figure 3 is the side-looking structural tangent plane sketch map when the utility model is placed.

Detailed Description

The present invention will be described in detail below with reference to fig. 1 to 3.

As shown in figures 1-3, and taking figure 1 as an orientation reference, the utility model comprises a base 1, a rotating rod 2 and a threaded rod 14, wherein the lower part in the base 1 is provided with a cavity 1-1, the rotating rod 2 is inserted into the right side wall of the cavity 1-1 of the base 1, the left end of the rotating rod 2 is connected with the right side wall inside the cavity 1-1 through a bearing 3, the right end of the rotating rod 2 is fixedly connected with a rotating handle 4 at the right side of the base 1, the rotating rod 2 is fixedly connected with two first bevel gears 5 at the left and right sides in the cavity 1-1, the left and right sides of the lower end surface of the base 1 are provided with two through holes 1-2, rotating shafts 6 are inserted into the through holes 1-2, a limiting ring 7 is fixedly connected with the inner side surface of the through holes 1-2, the outer side surface of the rotating shafts 6 is provided with an annular limiting groove 6-, the upper end of the rotating shaft 6 is fixedly connected with a second bevel gear 8, the second bevel gear 8 is meshed with a first bevel gear 5, four corners of the lower end surface of the base 1 are connected with upper supporting legs 10 through damping hinge shafts 9, the lower ends of the upper supporting legs 10 are inserted with lower supporting legs 11, wherein connecting rods 12 are fixedly connected between the front lower supporting leg 11 and the rear lower supporting leg 11 on the left side and the front lower supporting leg and the rear lower supporting leg 11 on the right side, a threaded sleeve 13 is fixedly connected to the middle of the upper end surface of each connecting rod 12, a threaded rod 14 is in threaded connection with the upper portion of the threaded sleeve 13, four corners of the top end of the threaded rod 14 are provided with sliding grooves 14-1, the top end of the threaded rod 14 is sleeved with a movable sleeve 15, four corners of the bottom end of the inner side surface of the movable sleeve 15 are fixedly connected with four sliders 16, the sliders 16 are, the lower part of the rotating shaft 6 is provided with a tenon hole 6-2 with a square cross section, the tenon 17 is made of magnet, the rotating shaft 6, the movable sleeve 15 and the threaded rod 14 are made of iron, the tenon 17 is inserted in the tenon hole 6-2, the tenon 17 does not fall off from the tenon hole 6-2 by means of self magnetism, so that when the rotating rod 2 drives the rotating shaft 6 to rotate through the first bevel gear 5 and the second bevel gear 8, the movable sleeve 15 and the threaded rod 14 rotate along with the tenon, because the lower end of the threaded sleeve 13 is fixedly connected to the connecting rod 12, when the threaded rod 14 rotates, the threaded sleeve 13 drives the connecting rod 12 to move up and down together, the distance between the lower supporting leg 11 and the upper supporting leg 10 is changed, the height of the device is adjusted, the tenon 17 is pulled out from the tenon hole 6-2, the movable sleeve 15 slides downwards to ensure that the movable sleeve 15 is attracted on the threaded rod 14 by means of the, at the moment, the upper supporting leg 10, the lower supporting leg 11, the threaded sleeve 13 and the threaded rod 14 can be folded inwards together, so that the device can be stored, the space occupation is reduced, the bolt hole 10-1 is formed in one side, facing outwards, of the top end of the upper supporting leg 10, the fixing plate 18 is fixedly connected to the outer side of the four upper supporting legs 10 on the lower end face of the base 1, the fixing bolt 19 is connected to the fixing plate 18 through threads, one side, facing inwards, of the fixing bolt 19 is connected to the bolt hole 10-1 in the top end of the upper supporting leg 10 through threads, the upper supporting leg 10 can be fixed through the fixing bolt 19 to prevent the device from being toppled over, the fixing bolt 19 is screwed down from the bolt hole 10.

In this embodiment, the upper end surface of the base 1 is provided with grooves 1-3, so that the alcohol burner can be conveniently placed on the upper end surface of the base 1 to prevent the alcohol burner from sliding off.

In this embodiment, a rubber mat 20 is fixed to the lower end surface of the lower support leg 11, so as to enhance the friction between the lower support leg 11 and the ground and prevent the device from slipping.

In the using process, when the device is required to be used for bearing an alcohol lamp, the tenon 17 is inserted into the tenon hole 6-2, the tenon 17 does not fall off from the tenon hole 6-2 by means of the magnetism of the tenon 17, the rotating handle 4 is rotated at the moment, so that the rotating rod 2 drives the rotating shaft 6 to rotate through the first bevel gear 5 and the second bevel gear 8, the movable sleeve 15 and the threaded rod 14 rotate along with the rotating shaft, the lower end of the threaded sleeve 13 is fixedly connected to the connecting rod 12, and when the threaded rod 14 rotates, the threaded sleeve 13 drives the connecting rod 12 to move up and down together, so that the distance between the lower supporting leg 11 and the upper supporting leg 10 is changed, the height of the device is adjusted, and the flame of the alcohol lamp placed in the groove 1-3 can be at a proper height; the fixing bolt 19 is screwed down from the bolt hole 10-1, the tenon 17 is pulled out from the tenon hole 6-2, and at the moment, the upper support leg 10, the lower support leg 11, the threaded sleeve 13 and the threaded rod 14 can be folded inwards together, so that the device can be stored conveniently, and the occupied space is reduced.

Claims

1. The utility model provides an adjustable chemical experiment platform of accomodating, includes base, bull stick and threaded rod, its characterized in that: the lower part in the base is provided with a cavity, the rotating rod is inserted into the right side wall of the cavity of the base, the left end of the rotating rod is connected with the right side wall of the inner side of the cavity through a bearing, the right end of the rotating rod is fixedly connected with a rotating handle at the right side of the base, the rotating rod is fixedly connected with two first bevel gears at the left side and the right side in the cavity, the left side and the right side of the lower end surface of the base are provided with two through holes, rotating shafts are inserted into the through holes, the inner side surfaces of the through holes are fixedly connected with limit rings, the outer side surface of each rotating shaft is provided with an annular limit groove, the upper ends of the rotating shafts are fixedly connected with second bevel gears, the second bevel gears are meshed with the first bevel gears, the four corners of the lower end surface of the base are connected with upper supporting legs through damping hinge shafts, the lower ends of the upper, threaded sleeve upper portion threaded connection has the threaded rod, threaded rod top four corners is equipped with the spout, the threaded rod top has cup jointed the movable sleeve, and the rigid coupling of movable sleeve inside bottom four corners has four sliders, the slider joint is in the spout, the rigid coupling of movable sleeve up end middle part has the transversal square tenon of personally submitting, the pivot lower part is equipped with the transversal square mortise hole of personally submitting, the tenon is made for magnet, and pivot, movable sleeve and threaded rod are iron, the tenon is pegged graft in the mortise hole, it is equipped with the bolt hole to go up supporting leg top outside one side outwards, the terminal surface has the fixed plate in four supporting leg outside rigid couplings under the base, threaded connection has fixing bolt on the fixed plate, and fixing bolt one side threaded connection inwards is in the bolt hole on last supporting leg top.

2. The chemical laboratory bench of claim 1, wherein: the upper end face of the base is provided with a groove.

3. The chemical laboratory bench of claim 1, wherein: and the lower end surface of the lower supporting leg is fixedly connected with a rubber non-slip mat.