CN212092354U - Alcohol burner iron stand platform for chemistry experiments - Google Patents

Abstract

The utility model relates to an alcohol burner iron stand platform for chemistry experiments, which comprises a base and a lead screw, wherein the lead screw is coaxial with the base, the lower end of the lead screw is rotatably connected with the base, the upper end of the lead screw is rotatably connected with a top plate, and the top of the lead screw is connected with a height-adjusting knob; the top plate is connected with the base through guide rails, the number of the guide rails is not less than 2, the screw rod and the guide rails are connected with sliding blocks in a matching manner, at least two side surfaces of each sliding block are connected with horizontal rods, and one end of each horizontal rod, far away from the corresponding sliding block, is connected with a vessel frame for fixing experimental vessels; the base top swivelling joint has the revolving stage, is equipped with the alcohol burner fixing base that corresponds the horizon bar position on the revolving stage top surface. This iron stand platform just can adjust the alcohol burner and wait to heat the distance between the utensil through the rotatory knob that increases of one hand, and it is more convenient to use, and can carry out a plurality of experimental operations simultaneously.

Description

Alcohol burner iron stand platform for chemistry experiments

(I) technical field

The utility model relates to a chemistry experiment teaching aid field specifically is an alcohol burner iron stand platform for chemistry experiments.

(II) background of the invention

In a chemical laboratory, an iron stand is a common experimental device for fixing and supporting various instruments, and is generally used for experimental operations such as filtration, heating and the like. Most of the current iron stand tables are composed of a base, an upright post and 1-2 cross clamps, the base is generally a solid iron casting base, the metal supporting rod is generally made of materials such as smooth stainless steel, an iron ring is fixed on the supporting rod through the cross clamps, when the distance between an alcohol lamp and the bottom of a beaker or a test tube needs to be adjusted to obtain a better heating effect, the cross clamps need to be loosened to adjust up and down, meanwhile, the cross clamps and the smooth metal supporting rod do not deviate from an appliance to be heated due to rotation in the up and down adjusting process, the cross clamps are screwed down to fix after the adjustment is finished, the operation is inconvenient, and if chemical agents exist in the appliance to be heated, the dangerous coefficient of the experiment of operators can be increased due to the fact that the chemical agents are close to the cross clamps; in addition, many times the experimenter needs to carry out a plurality of experimental operations simultaneously, and such iron stand platform often is difficult to satisfy the demand, and needs a plurality of iron stand platforms, and occupation space is big, and it is very inconvenient to operate.

(III) contents of utility model

For overcoming the above-mentioned problem that exists among the prior art, the utility model provides an alcohol burner iron stand platform for chemistry experiments only just can adjust the alcohol burner and wait the distance between the heating utensil through the rotatory knob that increases of one hand, and can carry out a plurality of experimental operations simultaneously, the utility model discloses a through following technical scheme realization:

an alcohol burner iron stand for chemical experiments comprises a base and a lead screw, wherein the lead screw is coaxial with the base, the lower end of the lead screw is rotatably connected with the base, the upper end of the lead screw is rotatably connected with a top plate, and the top of the lead screw is connected with a height-adjusting knob; the top plate is connected with the base through guide rails, the number of the guide rails is not less than 2, the lead screw and the guide rails are connected with sliding blocks in a matching mode, at least two side surfaces of each sliding block are connected with horizontal rods, and one end, far away from the sliding blocks, of each horizontal rod is connected with a vessel frame for fixing experimental vessels; the base top swivelling joint has the revolving stage, be equipped with the alcohol burner fixing base that corresponds the horizon bar position on the revolving stage top surface.

Preferably, at least two annular base ball grooves are formed in the top surface of the base, the rotary table ball grooves corresponding to the base ball grooves are formed in the bottom surface of the rotary table, the base ball grooves and the rotary table ball grooves are minor arc section grooves, and a plurality of balls are arranged between the base ball grooves and the rotary table ball grooves.

Preferably, the alcohol lamp fixing seats comprise two identical and oppositely arranged half fixing seats, each half fixing seat comprises a fixing tile, the bottom surface of each fixing tile is fixed on the corresponding rotary table, a through hole is formed in the circumferential middle position of each fixing tile, a push-pull shaft penetrates through each through hole, the inner side end of each push-pull shaft is connected with a pressing block, and a pressure spring sleeved on each push-pull shaft is arranged between each pressing block and each fixing tile.

Preferably, the push-pull shaft is connected with the pressing block in a spherical joint mode.

Preferably, the inner side surface of the pressing block is an arc-shaped surface, and anti-skid grains are arranged on the arc-shaped surface.

Preferably, the horizontal rod is a telescopic rod.

Preferably, a pin hole is formed in one end face, far away from the sliding block, of the horizontal rod, and the vessel frame is inserted into the pin hole to be fixed.

Preferably, the bottom of the base is provided with a vacuum chuck made of rubber.

The utility model has the advantages that:

1. the upper and lower adjusting device of iron stand platform includes lead screw, guide rail and slider, through rotatory height-adjusting knob can be convenient adjust the slider for the height of alcohol burner fixing base.

2. The device is characterized in that a plurality of side faces of the sliding block are connected with the vessel frame through horizontal rods, and an alcohol fixing seat corresponding to the position is arranged below the sliding block, so that a plurality of experimental operations can be performed simultaneously.

3. The alcohol lamp is compressed through a pressure spring which is arranged between the pressing block and the fixed tile and sleeved on the push-pull shaft, and the alcohol lamp compression fixing device can adapt to compression and fixation of alcohol lamps with different outer diameters.

4. The push-pull shaft is connected with the pressing block through a spherical joint, and can adapt to the pressing and fixing of alcohol lamps in various shapes.

5. The inner side surface of the pressing block is an arc-shaped surface, and anti-skidding lines are arranged on the arc-shaped surface, so that the fixing effect of the alcohol lamp is better.

6. The horizontal rod is a telescopic rod, and can adjust the horizontal position between the utensil on the utensil rack and the alcohol through telescopic adjustment, so that a better heating effect is ensured.

7. The horizontal rod is provided with a pin hole, and the vessel frame is inserted into the pin hole and can be rotated at any angle and then fixed, so that different experimental requirements can be met.

8. The vacuum chuck that the base bottom was equipped with the rubber material can play better anti-skidding and prevent the heeling effect.

(IV) description of the drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic view of a three-dimensional structure of the present invention.

Fig. 4 is a schematic perspective view (without a turntable) of the present invention.

Fig. 5 is a schematic view of a turntable structure according to the present invention.

Fig. 6 is a schematic diagram of a turntable structure in the present invention.

Fig. 7 is a schematic view of the structure of the alcohol burner fixing base of the present invention.

In the figure, 1-base, 11-base ball groove, 12-ball, 13-rotary table boss, 2-rotary table, 21-rotary table ball groove, 22-rotary table hole, 3-alcohol lamp fixing seat, 30-semi-fixing seat, 31-fixing tile, 32-push-pull shaft, 33-pressure spring, 34-pressing block, 35-anti-slip pattern, 36-blocking head, 4-lead screw, 41-sliding block, 411-horizontal rod, 412-jackscrew, 413-pin hole, 414-vessel frame, 42-guide rail, 43-height adjusting knob, 44-top plate, 45-top plate bearing, 46-base bearing and 5-vacuum chuck.

(V) detailed description of the preferred embodiments

In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be further described with reference to the accompanying drawings.

The utility model relates to an alcohol burner iron stand for chemical experiments, as shown in fig. 1-4, comprising a base 1 and a lead screw 4, wherein the lead screw 4 is coaxially arranged with the base 1, the axial position of the base 1 is provided with a bearing seat, a base bearing 46 is arranged in the bearing seat, the lower end of the lead screw 4 is inserted into the base bearing 46 and is rotatably connected with the base 1; the upper end of the screw rod 4 is connected with a top plate 44, a bearing seat is also arranged at the axis of the top plate 44, a top plate bearing 45 is arranged in the bearing seat, and the upper end of the screw rod 4 is in matched connection with the top plate bearing 45, so that the screw rod 4 can rotate between the top plate 44 and the base 1; the top of the screw rod 4 is fixedly connected with a height-adjusting knob 43, and an operator rotates the screw rod 4 by rotating the height-adjusting knob 43; roof 44 passes through guide rail 42 fixed connection with base 1, and guide rail 42 is glossy stainless steel pole, and in this embodiment, the quantity of guide rail 42 is 2, and the cooperation is connected with slider 41 on lead screw 4 and the guide rail 42, and slider 41 is the ball screw cooperation with lead screw 4, and the cooperation precision is high, and through rotatory knob 43 of increaseing, lead screw 4 can drive slider 41 up-and-down motion, realizes the regulation of height between slider 41 and the base 1.

Horizontal rods 411 are connected to at least two side surfaces of the sliding block 41, in the embodiment, the horizontal rods 411 are connected to four front, back, left and right surfaces, and one end of each horizontal rod 411 far away from the sliding block 41 is connected with a vessel frame 414 for fixing a laboratory vessel. The horizon bar 411 is the telescopic link, can adjust horizontal length wantonly, and the horizon bar 411 divide into outer pole and interior pole, and interior pole inserts the regulation that realizes different length in the outer pole, still is equipped with jackscrew 412 on the outer pole, after adjusting horizontal length, can fix interior pole through screwing up the jackscrew to prevent interior pole roll-off and cause the skew, influence the heating effect of the medicament of alcohol burner in to the utensil rack 414 on the test ware.

Be equipped with pinhole 413 on the terminal surface of horizon bar 411 outer end, utensil frame 414 inserts and can fix after the arbitrary angular rotation in the pinhole to adapt to different experimental demands, for example in doing potassium permanganate and potassium chlorate preparation oxygen experiment, need with test tube mouth down, the test tube slope sets up, just needs utensil frame 414 fixed insert behind the test tube in the pinhole 413 then rotate to required position and heat and do the experiment. In this embodiment, the vessel holder 414 is a device for fixing a test vessel, and includes an iron ring, a fixing clip, and the like, and is selected according to experimental needs.

Rotatable coupling has revolving stage 2 in base 1 top, is equipped with at least twice annular base ball groove 11 on the 1 top surface of base, as shown in fig. 4, is equipped with twice base ball groove 11 in this embodiment, is equipped with the revolving stage ball groove 21 that corresponds base ball groove 11 on the 2 bottom surfaces of revolving stage, and base ball groove 11 and revolving stage ball groove 21 are minor arc cross section grooves, be equipped with a plurality of balls 12 between base ball groove 11 and the revolving stage ball groove 21, can realize the rotation of revolving stage 2 on base 1 like this.

The turntable 2 is provided with a turntable hole 22 at the center so as to facilitate the lead screw 4 and the guide rail 42 to pass through; 2 axial line positions of revolving stage still are equipped with annular revolving stage boss 13, and revolving stage hole 22 inserts in revolving stage boss 13, and revolving stage boss 13 external diameter is the same and clearance fit with revolving stage hole 22 internal diameter, thereby prevent to produce radial dislocation at the skew of revolving stage ball groove 21 in rotatory in-process base ball groove 11 between revolving stage 2 and the base 1, and revolving stage boss 13 plays a radial fixed action, and revolving stage boss 13 external diameter scribbles lubricating oil during the use, avoids dry friction.

The top surface of the turntable 2 is provided with alcohol lamp holders 3 corresponding to the positions of the horizontal rods 411, four sets in this example, and the alcohol lamp holders are circumferentially spaced by 90 degrees. The alcohol lamp fixing seat 3 comprises two identical half fixing seats 30 which are arranged oppositely, each half fixing seat 30 comprises a fixing tile 31, the bottom surface of each fixing tile 31 is fixed on the rotary table 2, a through hole is formed in the circumferential middle position of each fixing tile 31, a push-pull shaft 32 penetrates through each through hole, the outer diameter of each push-pull shaft 32 is in clearance fit with each through hole, a pressing block 34 is connected to the end portion of the inner side of each push-pull shaft 32, a pressing spring 33 sleeved on each push-pull shaft 32 is arranged between each pressing block 34 and the corresponding fixing tile 31, in a heating or filtering experiment, one push-pull shaft 32 is pulled outwards, then an alcohol lamp or a beaker is placed between the two opposite pressing blocks 34, the pressing springs 33 are in a compressed state at the moment, and after the push-pull shafts 32 are loosened, the two. The outer end of the push-pull shaft 32 is provided with a stop head 36 which is convenient for an operator to grasp; the stopper 36 is in threaded connection with the push-pull shaft 32, and after the stopper 36 is unscrewed, the push-pull shaft 32 can be drawn out from the other side, so that the push-pull shaft 32, the pressure spring 33 and the pressing block 34 can be conveniently assembled and disassembled.

The push-pull shaft 32 is connected with the press block 34 by a spherical joint, the inner side surface of the press block 34 is an arc-shaped surface, and the arc-shaped surface is provided with anti-skid grains 35. Because the outer side surface of the alcohol lamp is a circular truncated cone surface, and the outer side surface of the beaker is a cylindrical surface, in order to better adapt to the clamping of different containers, the push-pull shaft 32 is connected with the pressing block 34 through a universal spherical joint, and can adapt to the outer side surfaces of various forms; the medial surface of briquetting 34 is the arcwall face, and is equipped with anti-skidding line 35 on the arcwall face, can play the effect of embracing the container lateral surface of treating the clamp, prevents to appear sliding after pressing from both sides tightly.

The vacuum chuck 5 made of rubber is arranged at the bottom of the base 1, so that a better anti-skidding and anti-rolling effect can be achieved, and rolling caused by eccentricity when an experiment is performed on one side only can be prevented.

Working process (this embodiment takes heating and filtering at the same time as an example): fixing the alcohol lamp and the beaker by using an alcohol lamp fixing seat 3 respectively; fixing the heating test tube on the horizontal rod 411 by using a container rack 414 in a fixing clamp form, and fixing the funnel on the other set of horizontal rod 411 by using a container rack 414 in an iron ring form; rotating the rotary table 2, and rotating the alcohol lamp and the beaker for filtering to the lower part of the test tube and the funnel for heating; the extension length of each horizontal rod 411 is adjusted according to the requirement; the height between the alcohol lamp and the test tube for heating, the height between the funnel and the beaker for filtering can be adjusted according to the requirement by rotating the height adjusting knob.

In the description of the present invention, the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal", etc. are based on the directions or positional relationships shown in the drawings (the present invention represents positional relationships with the schematic view of the main structure), and are only for describing the present invention, but not for requiring the present invention to be constructed or operated in a specific direction, and therefore, the present invention is not to be construed as being limited by the present invention. The terms "connected" and "connected" in the present invention are to be understood in a broad sense, and may be connected or detachably connected, for example; the terms may be directly connected or indirectly connected through intermediate components, and specific meanings of the terms may be understood as specific conditions by those skilled in the art.

The foregoing is a preferred embodiment of the present invention, and the description of the specific embodiments is only for better understanding of the idea of the present invention. To those skilled in the art, many modifications and equivalents may be made in accordance with the principles of the present invention and are deemed to fall within the scope of the invention.

Claims (8)

1. The utility model provides an alcohol burner iron stand platform for chemistry experiments which characterized in that: the lifting mechanism comprises a base (1) and a lead screw (4), wherein the lead screw (4) and the base (1) are coaxially arranged, the lower end of the lead screw (4) is rotatably connected with the base (1), the upper end of the lead screw (4) is rotatably connected with a top plate (44), and the top of the lead screw (4) is connected with a height-adjusting knob (43); the top plate (44) is fixedly connected with the base (1) through guide rails (42), the number of the guide rails (42) is not less than 2, the lead screw (4) and the guide rails (42) are connected with sliding blocks (41) in a matching mode, at least two side faces of each sliding block (41) are connected with horizontal rods (411), and one end, far away from the corresponding sliding block (41), of each horizontal rod (411) is connected with a vessel frame (414) for fixing experimental vessels; the base (1) top swivelling joint has revolving stage (2), be equipped with alcohol burner fixing base (3) that correspond horizontal pole (411) position on revolving stage (2) top surface.

2. The alcohol burner stand of claim 1, wherein: the base is characterized in that at least two annular base ball grooves (11) are formed in the top surface of the base (1), the rotary table ball grooves (21) corresponding to the base ball grooves (11) are formed in the bottom surface of the rotary table (2), the base ball grooves (11) and the rotary table ball grooves (21) are minor arc section grooves, and a plurality of balls (12) are arranged between the base ball grooves (11) and the rotary table ball grooves (21).

3. The alcohol burner stand for chemical experiments as claimed in claim 2, wherein: the alcohol lamp fixing seat (3) comprises two identical and oppositely-arranged half fixing seats (30), each half fixing seat (30) comprises a fixed tile (31) with the bottom surface fixed on the rotary table (2), a through hole is formed in the circumferential middle position of each fixed tile (31), a push-pull shaft (32) penetrates through each through hole, the inner side end of each push-pull shaft (32) is connected with a pressing block (34), and a pressure spring (33) sleeved on each push-pull shaft (32) is arranged between each pressing block (34) and each fixed tile (31).

4. The alcohol burner stand of claim 3, wherein: the push-pull shaft (32) is connected with the pressing block (34) in a spherical joint mode.

5. The alcohol burner stand of claim 4, wherein: the inner side surface of the pressing block (34) is an arc-shaped surface, and anti-skid grains (35) are arranged on the arc-shaped surface.

6. The alcohol burner stand of claim 1, wherein: the horizontal rod (411) is an expansion rod.

7. The alcohol burner stand of claim 1, wherein: a pin hole (413) is formed in one end face, away from the sliding block (41), of the horizontal rod (411), and the vessel frame (414) is inserted into the pin hole (413) to be fixed.

8. The alcohol burner stand as set forth in any one of claims 1 to 7, wherein: the bottom of the base (1) is provided with a vacuum chuck (5) made of rubber.

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