CN211044765U

CN211044765U - Middle school student burns chemical reaction experimental apparatus with magnesium area

Info

Publication number: CN211044765U
Application number: CN201921706703.0U
Authority: CN
Inventors: 张金龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-07-17
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a magnesium strip combustion chemical reaction experimental device for middle school students in the technical field of magnesium strip combustion chemical reaction experimental device, the top of the inner cavity of the outer shell is movably assembled with an adjusting screw rod through a bearing seat, the bottom of the adjusting screw rod is fixedly connected with a turntable after movably assembled with the outer shell through a bearing, the outer wall of the adjusting screw rod is screwed with a threaded sleeve, the left side wall of the threaded sleeve is fixedly connected with a sliding sleeve, the left side of the inner cavity of the outer shell is fixedly provided with a guide rod matched with the sliding sleeve, the right end of the support rod penetrates through the outer shell and is fixedly connected with a clamping piece device, the bottom of the clamping piece device is fixedly assembled with a protective cover, thereby realizing the clamping of magnesium strips with different thicknesses, improving the clamping force of the magnesium strips, ensuring that the magnesium strips can not fall off, and realizing the ignition of the magnesium strips under the condition, the safety of the experiment is improved.

Description

Middle school student burns chemical reaction experimental apparatus with magnesium area

Technical Field

The utility model relates to a magnesium area burning chemical reaction experimental apparatus technical field specifically is a middle school student uses magnesium area burning chemical reaction experimental apparatus.

Background

Magnesium is a light malleable silver-white metal, the burning of magnesium strip is a common experiment in middle school chemistry, the burning of magnesium strip is a process that magnesium and oxygen generate magnesium oxide under an ignition condition, the existing magnesium strip burning experiment is carried out in a chemical laboratory, the chemical laboratory instrument of middle school is single, the burning of magnesium strip can emit dazzling white light and emit a large amount of heat, danger easily occurs, although some instruments and equipment ignite the magnesium strip by adjusting the height of an alcohol lamp, inflammable matters such as the alcohol lamp and the like move back and forth in the experiment, a large potential safety hazard exists, and the existing magnesium strip fixing clamp is clamped by a pair of tweezers, the clamping is unfixed, and the magnesium strip is easy to fall off, therefore, the magnesium strip burning chemical reaction experimental device for middle school students is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a middle school student burns chemical reaction experimental apparatus with magnesium area to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a magnesium belt combustion chemical reaction experimental device for middle school students comprises a workbench, wherein a storage box is fixedly arranged on the left side wall of the workbench, an outer shell is fixedly arranged on the left side of the top of the workbench, an adjusting screw is movably assembled at the top of an inner cavity of the outer shell through a bearing seat, a rotary table is fixedly connected at the bottom of the adjusting screw after the adjusting screw is movably assembled with the outer shell through a bearing, a threaded sleeve is screwed on the outer wall of the adjusting screw, a sliding sleeve is fixedly connected on the left side wall of the threaded sleeve, a guide rod matched with the sliding sleeve is fixedly arranged on the left side of the inner cavity of the outer shell, a support rod is fixedly arranged on the right side wall of the threaded sleeve, a clip device is fixedly connected after the right end of the support rod penetrates through the outer shell, a protective cover is fixedly assembled at the bottom, an alcohol lamp is fixedly assembled on the mounting base.

Preferably, the clamping piece ware is including fixing the fixing base at the bracing piece right-hand member, the centre gripping groove has been seted up to the bottom of fixing base, the fixed bottom plate that is provided with on the inner chamber left side wall in centre gripping groove, the inner chamber nestification in centre gripping groove is provided with the briquetting, there is the screw rod right side wall center department of briquetting through bearing swing joint, the right-hand member of screw rod runs through fixing base right side wall back fixedly connected with regulating plate, the fixed guide post that is provided with in top and bottom on the inner chamber right side wall in centre gripping groove, set up on the right side wall of briquetting with guide post matched with guide way.

Preferably, a conical bump is formed on the left side wall of the pressing block, the bumps are linearly arranged along the length direction of the pressing block from top to bottom, and a wear-resistant coating is sprayed on the surface of each bump.

Preferably, the clip device is arranged right above the alcohol lamp, and the width of the protective cover is larger than that of the mounting base.

Preferably, the top of the mounting base is provided with a mounting groove matched with the alcohol lamp, and a rubber pad is fixedly arranged in the mounting groove.

Preferably, the right side wall of the outer shell is provided with an assembly channel matched with the support rod, and the height of the assembly channel is matched with the distance between the clip device and the alcohol lamp.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of reasonable design, can realize pressing from both sides tightly the magnesium area of different thickness through the clamping piece ware, and can improve the tight dynamics of clamp to the magnesium area, guarantee that the magnesium area can not drop, through manual forward rotation carousel, can drive adjusting screw and rotate, thereby it removes along the length direction of adjusting screw to drive threaded sleeve through adjusting screw and threaded sleeve's spiro union effect, and sliding sleeve slides along the guide bar and can provide the turning moment of threaded sleeve and adjusting screw spiro union, can guarantee threaded sleeve's removal straightness nature, thereby can drive the clamping piece ware through the bracing piece and remove to the direction that is close to the alcohol burner, consequently can realize lighting of magnesium area under the condition that need not move the alcohol burner, the security of experiment has been improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the clip clamping device of the present invention.

In the figure: 1 workbench, 2 storage boxes, 3 outer shells, 4 adjusting screws, 5 turntables, 6 threaded sleeves, 7 sliding sleeves, 8 guide rods, 9 support rods, 10 assembly channels, 11 clip devices, 111 fixing seats, 112 bottom plates, 113 pressing blocks, 114 clamping grooves, 115 screws, 116 adjusting plates, 117 guide posts, 118 guide grooves, 12 protective covers, 13 mounting bases and 14 alcohol lamps.

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, the present invention provides a technical solution: a magnesium strip combustion chemical reaction experimental device for middle school students comprises a workbench 1, a storage box 2 is fixedly arranged on the left side wall of the workbench 1, an outer shell 3 is fixedly arranged on the left side of the top of the workbench 1, an adjusting screw rod 4 is movably assembled at the top of an inner cavity of the outer shell 3 through a bearing seat, a rotary table 5 is fixedly connected to the bottom end of the adjusting screw rod 4 after the movable assembly of the bearing and the outer shell 3, a threaded sleeve 6 is screwed on the outer wall of the adjusting screw rod 4, a sliding sleeve 7 is fixedly connected to the left side wall of the threaded sleeve 6, a guide rod 8 matched with the sliding sleeve 7 is fixedly arranged on the left side of the inner cavity of the outer shell 3, a support rod 9 is fixedly arranged on the right side wall of the threaded sleeve 6, a clip device 11 is fixedly connected to the right end of the support rod 9 after penetrating through the outer shell 3, a, fixed assembly has alcohol burner 14 on mounting base 13, can realize pressing from both sides tightly the magnesium area of different thickness through clip ware 11, and can improve the tight dynamics of clamp to the magnesium area, guarantee that the magnesium area can not drop, through manual forward rotation carousel 5, can drive adjusting screw 4 and rotate, thereby the spiro union effect through adjusting screw 4 and threaded sleeve 6 drives threaded sleeve 6 and removes along adjusting screw 4's length direction, and sliding sleeve 7 slides along guide bar 8 and can provide the turning moment of threaded sleeve 6 and adjusting screw 4 spiro union, can guarantee threaded sleeve 6's removal straightness nature, thereby can drive clip ware 11 through bracing piece 9 and remove to the direction that is close to alcohol burner 14, consequently can realize lighting of magnesium area under the condition that need not move alcohol burner 14, the security of experiment has been improved.

Referring to fig. 2, the clip device 11 includes a fixing base 111 fixed at the right end of the supporting rod 9, a clamping groove 114 is formed at the bottom of the fixing base 111, a bottom plate 112 is fixedly arranged on the left side wall of the inner cavity of the clamping groove 114, a pressing block 113 is nested in the inner cavity of the clamping groove 114, a screw 115 is movably connected to the center of the right side wall of the pressing block 113 through a bearing, an adjusting plate 116 is fixedly connected to the right end of the screw 115 after penetrating through the right side wall of the fixing base 111, guide posts 117 are fixedly arranged at the top and the bottom of the right side wall of the inner cavity of the clamping groove 114, and a guide groove 118 matched with the guide posts 117 is formed in the right side wall of the pressing block 113, so that when the device is used, a magnesium band is placed in the clamping groove 114, and then the adjusting plate 116 is manually rotated to drive the;

referring to fig. 2, a tapered bump is formed on the left side wall of the pressing block 113, the bumps are linearly arranged along the length direction of the pressing block 113 from top to bottom, and a wear-resistant coating is sprayed on the surface of the bump, so that the friction between the pressing block 113 and the magnesium strip can be improved, and the clamping degree can be improved;

referring to fig. 1, the clip 11 is disposed right above the alcohol burner 14, and the width of the protective cover 12 is greater than the width of the mounting base 13;

the top of the mounting base 13 is provided with a mounting groove matched with the alcohol lamp 14, and a rubber pad is fixedly arranged in the mounting groove, so that the alcohol lamp 14 can be fixedly mounted, and the alcohol lamp 14 is protected by the rubber pad;

the right side wall of the outer shell 3 is provided with an assembly channel 10 matched with the support rod 9, and the height of the assembly channel 10 is matched with the distance between the clip device 11 and the alcohol burner 14.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a middle school student burns chemical reaction experimental apparatus with magnesium area, includes workstation (1), its characterized in that: the storage box (2) is fixedly arranged on the left side wall of the workbench (1), the outer shell (3) is fixedly arranged on the left side of the top of the workbench (1), an adjusting screw (4) is movably assembled at the top of an inner cavity of the outer shell (3) through a bearing seat, a turntable (5) is fixedly connected to the bottom of the adjusting screw (4) after the adjusting screw and the outer shell (3) are movably assembled, a threaded sleeve (6) is screwed on the outer wall of the adjusting screw (4), a sliding sleeve (7) is fixedly connected to the left side wall of the threaded sleeve (6), a guide rod (8) matched with the sliding sleeve (7) is fixedly arranged on the left side of the inner cavity of the outer shell (3), a support rod (9) is fixedly arranged on the right side wall of the threaded sleeve (6), and a clamping piece device (11) is fixedly connected to the right end of the support rod (, the bottom end of the clip device (11) is fixedly provided with a protective cover (12), the top of the workbench (1) is fixedly provided with a mounting base (13), and the mounting base (13) is fixedly provided with an alcohol lamp (14).

2. The magnesium strip combustion chemical reaction experimental device for middle school students according to claim 1, wherein: clamping piece ware (11) is including fixing base (111) at bracing piece (9) right-hand member, centre gripping groove (114) have been seted up to the bottom of fixing base (111), the fixed bottom plate (112) that is provided with on the inner chamber left side wall in centre gripping groove (114), the inner chamber nestification of centre gripping groove (114) is provided with briquetting (113), there is screw rod (115) right side wall center department of briquetting (113) through bearing swing joint, the right-hand member of screw rod (115) runs through fixing base (111) right side wall back fixedly connected with regulating plate (116), fixed guide post (117) that are provided with in top and bottom on the inner chamber right side wall in centre gripping groove (114), seted up on the right side wall of briquetting (113) with guide post (117) matched with guide way (118).

3. The magnesium strip combustion chemical reaction experimental device for middle school students according to claim 2, wherein: seted up on the left side wall of briquetting (113) and be conical lug, and the lug is from last to being linear arrangement down along the length direction of briquetting (113), and the spraying has wear-resistant coating on the surface of lug.

4. The magnesium strip combustion chemical reaction experimental device for middle school students according to claim 1, wherein: the clip device (11) is arranged right above the alcohol lamp (14), and the width of the protective cover (12) is larger than that of the mounting base (13).

5. The magnesium strip combustion chemical reaction experimental device for middle school students according to claim 4, wherein: the top of the mounting base (13) is provided with a mounting groove matched with the alcohol lamp (14), and a rubber pad is fixedly arranged in the mounting groove.

6. The magnesium strip combustion chemical reaction experimental device for middle school students according to claim 1, wherein: the right side wall of the outer shell (3) is provided with an assembly channel (10) matched with the support rod (9), and the height of the assembly channel (10) is matched with the distance between the clamping piece device (11) and the alcohol lamp (14).