CN114289093A

CN114289093A - Test tube placer is used in high school's chemistry experiment teaching

Info

Publication number: CN114289093A
Application number: CN202111653619.9A
Authority: CN
Inventors: 周波
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-04-08

Abstract

The invention provides a test tube placement device for high school chemistry experiment teaching, which comprises a base and a lifting mechanism, wherein connecting columns are fixedly connected to four corners of the top of the base, a placement plate is connected to one side of each connecting column in a sliding manner, placement holes are formed in the placement plate, and placement grooves are formed in two sides of the top of the base; the lifting mechanism comprises a threaded rod, a worm wheel, a worm, a threaded sleeve and a connecting block, and the threaded rod is rotatably connected inside the connecting column. According to the test tube rack, the worm is driven to rotate by the rotary knob, the worm drives the worm wheel to rotate, the worm wheel drives the threaded rod to rotate, the threaded rod drives the threaded sleeve to move, and the threaded sleeve drives the placing plate to move through the connecting block, so that the height of the placing plate is adjusted, and the problems that test tubes with different lengths are inconvenient to place and the test tubes are prone to being inclined and falling in the moving process because most of the conventional test tube racks do not have devices for adjusting the height according to the lengths of the test tubes are solved.

Description

Test tube placer is used in high school's chemistry experiment teaching

Technical Field

The invention relates to the field of teaching instruments, in particular to a test tube placing device for high school chemistry experiment teaching.

Background

Chemistry is the basic science of natural science like physics, is a science for researching composition, properties, structure and change rules of substances on molecular and atomic levels, is a natural science based on experiments, and needs to use a plurality of chemical experimental products during daily teaching, wherein test tubes are the most common and have different specifications and functional requirements.

In the teaching process, need prepare complete back with laboratory supplies such as test tubes from the equipment room, bring into the classroom and teach, because need utilize different test tubes to experiment in the experimentation, so will carry the test tube of multiple specification, the test tube support does not mostly come height-adjusting's device according to test tube length at present, is not convenient for like this place the test tube that length differs, removes the condition that the in-process takes place test tube slope to drop easily.

Therefore, the test tube placing device for the high school chemical experiment teaching is provided.

Disclosure of Invention

The invention aims to provide a test tube placing device for high school chemical experiment teaching, which is used for solving the problems in the background technology.

The test tube placing device for the high school chemistry experiment teaching provided by the invention comprises a base and a lifting mechanism, wherein connecting columns are fixedly connected to four corners of the top of the base, a placing plate is connected to one side of each connecting column in a sliding manner, placing holes are formed in the placing plate, and placing grooves are formed in two sides of the top of the base; elevating system includes threaded rod, worm wheel, worm, thread bush and links the piece, the internal rotation of spliced pole is connected with the threaded rod, the outside of threaded rod and the inner circle fixed connection of worm wheel, the outside of worm wheel is connected with the outside meshing of worm, the outside threaded connection of threaded rod has the thread bush, one side fixedly connected with of thread bush links the piece.

Preferably, the top of base is provided with the drainage groove, the bottom fixedly connected with stand of drainage groove inner chamber.

Preferably, the bottom of the base is connected with a water receiving box in a sliding mode, and one side of the water receiving box is fixedly connected with a handle.

Preferably, the equal fixedly connected with spout in both sides of base bottom, the inner wall sliding connection of spout has the slider, the top of slider and one side fixed connection of water receiving box.

Preferably, one side of the worm is fixedly connected with a knob, and the outer side of the knob and the outer side of the handle are both provided with anti-skid grains.

Preferably, four corners of the bottom of the base are fixedly connected with supporting legs, and the bottoms of the supporting legs are fixedly connected with anti-slip pads.

Preferably, the bottom of the inner cavity of the placing groove is provided with a soft cushion, and the inner ring of the placing hole is provided with a protective cushion.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the test tube rack, the worm is driven to rotate by the rotary knob, the worm drives the worm wheel to rotate, the worm wheel drives the threaded rod to rotate, the threaded rod drives the threaded sleeve to move, and the threaded sleeve drives the placing plate to move through the connecting block, so that the height of the placing plate is adjusted, and the problems that test tubes with different lengths are inconvenient to place and the test tubes are prone to being inclined and falling in the moving process because most of the conventional test tube racks do not have devices for adjusting the height according to the lengths of the test tubes are solved;

2. according to the invention, by arranging the drainage groove and the upright post, a user can hang the cleaned test tube upside down on the upright post for drying, the dropped water can flow out along the drainage groove, the water receiving box is arranged for collecting the wastewater flowing out of the drainage groove, and the sliding chute and the sliding block are arranged for facilitating the sliding of the water receiving box at the bottom of the base;

3. the rotation of the worm is convenient for a user to rotate the worm by arranging the knob, the base can be supported by arranging the supporting legs, so that the device is supported, meanwhile, the anti-slip pad is arranged at the bottom of the supporting legs, so that the friction force between the bottom of the supporting legs and the desktop can be increased, the device is prevented from sliding in use, the stability of the device is improved, and the test tube can be prevented from being damaged by the vibration force generated when the device is moved by arranging the soft pad and the anti-slip pad, so that the test tube is protected.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the connecting column of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

fig. 4 is a schematic structural view of the water receiving box shown in fig. 3.

Reference numbers in the figures: 1. a base; 2. connecting columns; 3. placing the plate; 4. placing holes; 5. a placement groove; 6. a lifting mechanism; 61. a threaded rod; 62. a worm gear; 63. a worm; 64. a threaded sleeve; 65. connecting blocks; 7. a water receiving box; 8. a handle; 9. a chute; 10. a slider; 11. a knob; 12. a support leg; 13. a non-slip mat; 14. a soft cushion; 15. a protective pad; 16. a drainage groove; 17. and (4) a column.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4 in combination, fig. 1 is a schematic structural diagram of the present invention, fig. 2 is a schematic structural diagram of an internal structure of the connection column shown in fig. 1 according to the present invention, fig. 3 is an enlarged schematic structural diagram of a position a in fig. 1 according to the present invention, and fig. 4 is a schematic structural diagram of the water receiving box shown in fig. 3 according to the present invention. The utility model provides a high school is test tube placer for chemistry experiment teaching, includes base 1 and elevating system 6, the equal fixedly connected with spliced pole 2 in four corners at base 1 top, one side sliding connection of spliced pole 2 has places board 3, the inside of placing board 3 is provided with places hole 4, the both sides at base 1 top all are provided with standing groove 5, elevating system 6 includes threaded rod 61, worm wheel 62, worm 63, thread bush 64 and even piece 65, the internal rotation of spliced pole 2 is connected with threaded rod 61, the outside of threaded rod 61 and the inner circle fixed connection of worm wheel 62, the outside of worm wheel 62 is connected with the outside meshing of worm 63, the outside threaded connection of threaded rod 61 has thread bush 64, one side fixedly connected with even piece 65 of thread bush 64.

Further, the top of base 1 is provided with drainage groove 16, the bottom fixedly connected with stand 17 of drainage groove 16 inner chamber, through setting up drainage groove 16 and stand 17, the user can hang the test tube after the washing upside down and dry on stand 17, and the water that drips can flow along drainage groove 16.

Further, the bottom of base 1 sliding connection has water receiving box 7, one side fixedly connected with handle 8 of water receiving box 7, through setting up water receiving box 7, can collect the waste water that flows out in drainage groove 16.

Further, the equal fixedly connected with spout 9 in both sides of base 1 bottom, the inner wall sliding connection of spout 9 has slider 10, the top of slider 10 and one side fixed connection of water receiving box 7 are through setting up spout 9 and slider 10, and the water receiving box 7 of being convenient for slides in the bottom of base 1.

Further, one side of the worm 63 is fixedly connected with a knob 11, the outer side of the knob 11 and the outer side of the handle 8 are both provided with anti-skid threads, and the rotation of the worm 63 by a user is facilitated by the arrangement of the knob 11.

Further, the equal fixedly connected with landing leg 12 in four corners of base 1 bottom, the bottom fixedly connected with slipmat 13 of landing leg 12 through setting up landing leg 12, can play the supporting role to base 1 to play the supporting role to this device, set up slipmat 13 in the bottom of landing leg 12 simultaneously, can increase the frictional force between 12 bottoms of landing leg and the desktop, prevent that this device from taking place to slide when using, increased the stability of this device.

Further, the bottom of the inner cavity of the placing groove 5 is provided with a soft cushion 14, the inner ring of the placing hole 4 is provided with a protective cushion 15, and the soft cushion 14 and the protective cushion 15 are arranged, so that the test tube can be prevented from being damaged by vibration force generated when the device is moved, and the test tube is protected.

The working principle of the test tube placing device for the high school chemistry experiment teaching provided by the invention is as follows:

when placing the test tube, the user can adjust the height of the placing plate 3 on the connecting column 2 according to the length of the test tube, thereby adjusting the height between the placing hole 4 and the placing groove 5, firstly, the user drives the worm 63 to rotate through the rotating knob 11, the worm 63 drives the worm wheel 62 to rotate, the worm wheel 62 drives the threaded rod 61 to rotate, the threaded rod 61 drives the threaded sleeve 64 to move, the threaded sleeve 64 drives the placing plate 3 to move through the connecting block 65, thereby adjusting the height of the placing plate 3, when the required height of the test tube is adjusted, the test tube passes through the inside of the placing hole 4 to be prevented from being placed in the placing groove 5, the device can prevent the test tube from being damaged by the vibration force generated when moving the device by arranging the soft cushion 14 and the protective cushion 15, the test tube is protected, and by arranging the drainage groove 16 and the upright column 17, the user can hang the cleaned test tube on the upright column 17 to be dried, the water that drips can flow along drainage groove 16, through setting up water receiving box 7, can collect the waste water that flows out in the drainage groove 16.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a high school is test tube placer for chemical experiment teaching which characterized in that includes:

the device comprises a base (1), wherein connecting columns (2) are fixedly connected to four corners of the top of the base (1), a placing plate (3) is connected to one side of each connecting column (2) in a sliding mode, placing holes (4) are formed in the placing plate (3), and placing grooves (5) are formed in two sides of the top of the base (1);

elevating system (6), elevating system (6) include threaded rod (61), worm wheel (62), worm (63), thread bush (64) and link piece (65), the internal rotation of spliced pole (2) is connected with threaded rod (61), the outside of threaded rod (61) and the inner circle fixed connection of worm wheel (62), the outside of worm wheel (62) is connected with the outside meshing of worm (63), the outside threaded connection of threaded rod (61) has thread bush (64), one side fixedly connected with of thread bush (64) links piece (65).

2. The test tube placement device for high school chemistry experiment teaching according to claim 1, characterized in that the top of the base (1) is provided with a drainage groove (16), and the bottom of the inner cavity of the drainage groove (16) is fixedly connected with a column (17).

3. The test tube placing device for high school chemistry experiment teaching according to claim 1, characterized in that a water receiving box (7) is connected to the bottom of the base (1) in a sliding manner, and a handle (8) is fixedly connected to one side of the water receiving box (7).

4. The test tube placing device for high school chemistry experiment teaching according to claim 3, characterized in that both sides of the bottom of the base (1) are fixedly connected with sliding grooves (9), the inner wall of the sliding groove (9) is slidably connected with sliding blocks (10), and the top of the sliding blocks (10) is fixedly connected with one side of the water receiving box (7).

5. The test tube placement device for high school chemistry experiment teaching according to claim 3, characterized in that one side of the worm (63) is fixedly connected with a knob (11), and the outer side of the knob (11) and the outer side of the handle (8) are both provided with anti-skid threads.

6. The test tube placement device for high school chemistry experiment teaching according to claim 1, characterized in that four corners of the bottom of the base (1) are fixedly connected with legs (12), and the bottoms of the legs (12) are fixedly connected with non-slip mats (13).

7. The test tube placement device for high school chemistry experiment teaching according to claim 1, characterized in that the bottom of the inner cavity of the placement groove (5) is provided with a soft cushion (14), and the inner ring of the placement hole (4) is provided with a protective cushion (15).