CN215679761U - Demonstration device for physical chemistry experiments - Google Patents
Demonstration device for physical chemistry experiments Download PDFInfo
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- CN215679761U CN215679761U CN202122150215.XU CN202122150215U CN215679761U CN 215679761 U CN215679761 U CN 215679761U CN 202122150215 U CN202122150215 U CN 202122150215U CN 215679761 U CN215679761 U CN 215679761U
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Abstract
The utility model discloses a demonstration device for physical and chemical experiments, which comprises a base, wherein a first speed reducing motor is fixedly arranged at the top end of the inner wall of the base, a rotating shaft is fixedly connected to the output end of the first speed reducing motor, a demonstration board is fixedly connected to the top end of the rotating shaft after penetrating through the base, a fan is fixedly arranged in the middle of one side of the top end of the demonstration board, clamping grooves are formed in the two side sides of the top end of the demonstration board, clamping strips are clamped on the surfaces of the clamping grooves, explosion-proof glass plates are fixedly connected to the top ends of the clamping strips, grooves are formed in one ends of the clamping strips, springs are fixedly connected to one side of the inner wall of each groove, limiting blocks are fixedly connected to one ends of the springs, and water collecting grooves are formed in the middle of the top end of the demonstration board. Can play a role in protection in dangerous experiments.
Description
Technical Field
The utility model relates to the field of demonstration devices, in particular to a demonstration device for a physical and chemical experiment.
Background
Experiments are the generation or reproduction of something (or process) by artificially revolutionizing, controlling or simulating the study object.
The experiment also needs to be carried out in the study of physics and chemistry, but the presentation device that current experiment used can not the omnidirectional demonstrate, leads to being located the people in other position and observes not clearly, and safeguard function is not good, has certain risk in the demonstration process, for this reason we have proposed a presentation device that the physics chemistry experiment was used.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a demonstration device for a physical and chemical experiment, which aims to solve the problems that people positioned in other directions cannot observe clearly and have poor protection function and certain risk in the demonstration process because the demonstration device used in the existing experiment in the background technology cannot be used for carrying out all-around demonstration.
In order to achieve the purpose, the utility model provides the following technical scheme: a demonstration device for physical and chemical experiments comprises a base, wherein a first speed reduction motor is fixedly mounted at the top end of the inner wall of the base, a rotating shaft is fixedly connected at the output end of the first speed reduction motor, a demonstration board is fixedly connected at the top end of the rotating shaft, a fan is fixedly mounted in the middle of one side of the top end of the demonstration board, vertical boxes are fixedly connected at two ends of one side of the top end of the demonstration board, a second speed reduction motor is fixedly mounted at the bottom end of the inner wall of each vertical box, lead screws are fixedly connected at the output ends of the two second speed reduction motors, displacement blocks are slidably connected on the surfaces of the two lead screws, connecting rods are fixedly connected at one sides of the two displacement blocks close to the fan, a first bearing is rotatably connected at one end of each connecting rod, and the two first bearings are fixedly connected to two sides of a writing board respectively, the demonstration board is characterized in that clamping grooves are formed in the two side sides of the top end of the demonstration board, clamping strips are clamped on the surfaces of the clamping grooves, the top end of each clamping strip is fixedly connected with an explosion-proof glass board, a groove is formed in one end of each clamping strip, a spring is fixedly connected to one side of the inner wall of the groove, a limiting block is fixedly connected to one end of the spring, and a water collecting groove is formed in the middle of the top end of the demonstration board.
As a preferable technical scheme of the utility model, a second bearing is sleeved at the joint of the rotating shaft and the base, a third bearing is rotatably connected to the top end of the lead screw, and the third bearing is fixedly connected to the top end of the inner wall of the vertical box.
As a preferable technical scheme of the utility model, both sides of the top end of the inner wall of the base are fixedly connected with storage boxes.
As a preferable technical scheme of the utility model, one end of one side of the inner wall of the water collecting tank is fixedly communicated with a drain pipe.
As a preferred technical solution of the present invention, a first switch is fixedly installed on one side of the front surface of the demonstration board, the first speed reduction motor is electrically connected to an external power supply through the first switch, a second switch is fixedly installed on the other side of the front surface of the demonstration board, the second speed reduction motor is electrically connected to the external power supply through the second switch, a third switch is fixedly installed in the middle of the front surface of the demonstration board, and the fan is electrically connected to the external power supply through the third switch.
As a preferable technical scheme of the utility model, one side of the vertical box, which is close to the fan, is provided with a displacement port, the back of the displacement block is fixedly connected with a slide block, the surface of the slide block is connected with a slide rail in a sliding manner, and the slide rail is fixedly arranged on one side of the inner wall of the vertical box.
As a preferred technical scheme of the utility model, the two sides of the front surface of the demonstration board are both provided with limiting openings, and the surfaces of the limiting blocks are clamped with the limiting openings.
As a preferred technical scheme of the utility model, universal balls are fixedly mounted on two sides of the bottom end of the demonstration board, the bottoms of the two universal balls are connected with annular rails in a sliding manner, and the annular rails are fixedly mounted at the bottom end of the base.
Compared with the prior art, the utility model has the beneficial effects that:
1. through being equipped with first gear motor, first gear motor can drive the demonstration board through the rotation axis and rotate, thereby make people in each position can see the process of experiment clearly, through principle and formula that use when writing the experiment on the clipboard, the experiment combines with the theory, thereby the learning effect is better, and can finally drive the clipboard through the second gear motor and rise, thereby it is more convenient to watch, and be equipped with first bearing between connecting rod and the clipboard, can be located the device back and write when writing, write and overturn the clipboard again, thereby it is convenient to write;
2. through being equipped with the fan on the demonstration board, can be with the quick evacuation of siphoning away of the gas that produces in the chemistry experiment, avoid causing the injury to the human body, through being equipped with the water catch bowl, can collect the liquid that spills in the experiment, avoid the outflow to cause harm, through being equipped with explosion-proof glass board, in the more dangerous experiment, can play the effect of protection to the people of both sides, and can pull down through pressing down the stopper in other experiments, avoid sheltering from occupation space.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front cross-sectional view at the base of the present invention;
FIG. 3 is a front cross-sectional view of the utility model at the vertical box;
fig. 4 is a side cross-sectional view at the card slot of the present invention.
In the figure: 1. a base; 2. a first reduction motor; 3. a rotating shaft; 4. a demonstration board; 5. erecting the box; 6. a second reduction motor; 7. a lead screw; 8. a displacement block; 9. a connecting rod; 10. a first bearing; 11. a writing board; 12. a fan; 13. a water collection tank; 14. a drain pipe; 15. a card slot; 16. clamping the strip; 17. a groove; 18. a spring; 19. a limiting block; 20. a limiting port; 21. an explosion-proof glass plate; 22. a storage box; 23. a first switch; 24. a second switch; 25. a third switch; 26. a universal ball; 27. an annular rail.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the utility model provides a demonstration device for physical and chemical experiments, comprising a base 1, a first speed reduction motor 2 is fixedly installed at the top end of the inner wall of the base 1, a rotating shaft 3 is fixedly connected with the output end of the first speed reduction motor 2, a demonstration board 4 is fixedly connected with the top end of the rotating shaft 3 through the base 1, a fan 12 is fixedly installed at the middle part of one side of the top end of the demonstration board 4, vertical boxes 5 are fixedly connected with the two ends of one side of the top end of the demonstration board 4, second speed reduction motors 6 are fixedly installed at the bottom ends of the inner walls of the two vertical boxes 5, lead screws 7 are fixedly connected with the output ends of the two second speed reduction motors 6, displacement blocks 8 are slidably connected with the surfaces of the two lead screws 7, connecting rods 9 are fixedly connected with one sides of the two displacement blocks 8 close to the fan 12, first bearings 10 are rotatably connected with one ends of the two connecting rods 9, and the two first bearings 10 are respectively fixedly connected with the two sides of a writing board 11, draw-in groove 15 has all been seted up to the both sides side on demonstration board 4 top, and the surperficial block of draw-in groove 15 has card strip 16, and the explosion-proof glass board 21 of top fixedly connected with of card strip 16, and recess 17 has been seted up to the one end of card strip 16, and one side fixedly connected with spring 18 of recess 17 inner wall, spring 18's one end fixedly connected with stopper 19, and water catch bowl 13 has been seted up at the middle part on demonstration board 4 top.
Preferably, a second bearing is sleeved at the joint of the rotating shaft 3 and the base 1, a third bearing is rotatably connected to the top end of the screw 7, and the third bearing is fixedly connected to the top end of the inner wall of the vertical box 5, so that the rotating shaft 3 and the screw 7 can stably rotate;
preferably, both sides of the top end of the inner wall of the base 1 are fixedly connected with storage boxes 22 for storing articles required by the experiment;
preferably, one end of one side of the inner wall of the water collecting tank 13 is fixedly communicated with a drain pipe 14 for draining leaked liquid in the water collecting tank 13;
preferably, a first switch 23 is fixedly installed on one side of the front surface of the demonstration board 4, the first speed reduction motor 2 is electrically connected with an external power supply through the first switch 23, a second switch 24 is fixedly installed on the other side of the front surface of the demonstration board 4, the second speed reduction motor 6 is electrically connected with the external power supply through the second switch 24, a third switch 25 is fixedly installed in the middle of the front surface of the demonstration board 4, the fan 12 is electrically connected with the external power supply through the third switch 25, the first switch 23 is used for controlling the first speed reduction motor 2 to be turned on and turned off, the second switch 24 is used for controlling the second speed reduction motor 6 to be turned on and turned off, and the third switch 25 is used for controlling the fan 12 to be turned on and turned off;
preferably, a displacement port is formed in one side, close to the fan 12, of the vertical box 5, a sliding block is fixedly connected to the back of the displacement block 8, a sliding rail is connected to the surface of the sliding block in a sliding manner, the sliding rail is fixedly mounted on one side of the inner wall of the vertical box 5, the displacement port provides a space for movement of the connecting rod 9, and the sliding block and the sliding rail are arranged so that the displacement block 8 can vertically displace under rotation of the lead screw 7;
preferably, the two sides of the front surface of the demonstration board 4 are both provided with a limiting opening 20, and the surface of the limiting block 19 is clamped with the limiting opening 20, so that the position of the explosion-proof glass plate 21 can be fixed and prevented from falling off;
preferably, the both sides of demonstration board 4 bottom are all fixed mounting have universal ball 26, and the bottom sliding connection of two universal balls 26 has annular rail 27, and annular rail 27 fixed mounting in the bottom of base 1 can play the effect of support to demonstration board 4, makes demonstration board 4 can stable rotation.
When the demonstration device for the physical and chemical experiments is used, during the experiment demonstration, the first speed reducing motor 2 can be started, the first speed reducing motor 2 can drive the demonstration board 4 to rotate through the rotating shaft 3, so that people in all directions can see the experiment process clearly, the experiments and theories are combined through the principle and formula used in the experiment writing on the writing board 11, the learning effect is better, the lead screw 7 is driven to rotate through the second speed reducing motor 6, the displacement block 8 is horizontally lifted, the writing board 11 can be driven to lift through the connecting rod 9, so that the people can more conveniently watch, the first bearing 10 is arranged between the connecting rod 9 and the writing board 11, the back of the device can be used for writing, the writing board 11 can be turned over after writing, so that the writing is convenient, the fan 12 is arranged on the demonstration board 4, can be with the quick evacuation of siphoning away of the gas that produces in the chemistry experiment, avoid causing the harm to the human body, through being equipped with water catch bowl 13, can collect the liquid that spills in the experiment, avoid the outflow to cause harm, through being equipped with explosion-proof glass board 21, in comparatively dangerous experiment, the accessible is with the card strip 16 block of explosion-proof glass board 21 bottom in draw-in groove 15, and stopper 19 block under the effect of spring 18 on spacing mouthful 20, thereby install explosion-proof glass board 21, the effect of protection is played to the people of both sides, and can pull down through pressing down stopper 19 in other experiments, avoid sheltering from and occupation space.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (8)
1. A presentation device for physical chemistry experiments, includes base (1), its characterized in that: the demonstration board is characterized in that a first speed reducing motor (2) is fixedly mounted at the top end of the inner wall of the base (1), a rotating shaft (3) is fixedly connected to the output end of the first speed reducing motor (2), the top end of the rotating shaft (3) penetrates through the base (1) and is fixedly connected with the demonstration board (4), a fan (12) is fixedly mounted in the middle of one side of the top end of the demonstration board (4), vertical boxes (5) are fixedly connected to the two ends of one side of the top end of the demonstration board (4), second speed reducing motors (6) are fixedly mounted at the bottom ends of the inner walls of the two vertical boxes (5), lead screws (7) are fixedly connected to the output ends of the two second speed reducing motors (6), displacement blocks (8) are slidably connected to the surfaces of the two lead screws (7), connecting rods (9) are fixedly connected to one sides, close to the fans (12), of the two connecting rods (9) are rotatably connected to first bearings (10), and two first bearing (10) difference fixed connection is in the both sides of clipboard (11), draw-in groove (15) have all been seted up to the both sides side on demonstration board (4) top, the surperficial block of draw-in groove (15) has card strip (16), the top fixedly connected with explosion-proof glass board (21) of card strip (16), the one end of card strip (16) is seted up flutedly (17), one side fixedly connected with spring (18) of recess (17) inner wall, the one end fixedly connected with stopper (19) of spring (18), water catch bowl (13) have been seted up at the middle part on demonstration board (4) top.
2. A demonstration apparatus for physicochemical experiments according to claim 1, wherein: the junction cover of rotation axis (3) and base (1) is equipped with the second bearing, the top of lead screw (7) is rotated and is connected with the third bearing, just third bearing fixed connection is in the top of erecting case (5) inner wall.
3. A demonstration apparatus for physicochemical experiments according to claim 1, wherein: the two sides of the top end of the inner wall of the base (1) are fixedly connected with storage boxes (22).
4. A demonstration apparatus for physicochemical experiments according to claim 1, wherein: and one end of one side of the inner wall of the water collecting tank (13) is fixedly communicated with a drain pipe (14).
5. A demonstration apparatus for physicochemical experiments according to claim 1, wherein: demonstration board (4) positive one side fixed mounting has first switch (23), first gear motor (2) are through first switch (23) and external power supply electric connection, demonstration board (4) positive opposite side fixed mounting has second switch (24), second gear motor (6) are through second switch (24) and external power supply electric connection, the positive middle part fixed mounting of demonstration board (4) has third switch (25), fan (12) are through third switch (25) and external power supply electric connection.
6. A demonstration apparatus for physicochemical experiments according to claim 1, wherein: a displacement opening is formed in one side, close to the fan (12), of the vertical box (5), a sliding block is fixedly connected to the back face of the displacement block (8), a sliding rail is connected to the surface of the sliding block in a sliding mode, and the sliding rail is fixedly installed on one side of the inner wall of the vertical box (5).
7. A demonstration apparatus for physicochemical experiments according to claim 1, wherein: spacing mouthful (20) have all been seted up to demonstration board (4) positive both sides, just the surface and the spacing mouthful (20) block of stopper (19).
8. A demonstration apparatus for physicochemical experiments according to claim 1, wherein: the demonstration board is characterized in that universal balls (26) are fixedly mounted on two sides of the bottom end of the demonstration board (4), two universal balls (26) are slidably connected to the bottom of each annular rail (27), and the annular rails (27) are fixedly mounted at the bottom end of the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122150215.XU CN215679761U (en) | 2021-09-07 | 2021-09-07 | Demonstration device for physical chemistry experiments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122150215.XU CN215679761U (en) | 2021-09-07 | 2021-09-07 | Demonstration device for physical chemistry experiments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215679761U true CN215679761U (en) | 2022-01-28 |
Family
ID=79960364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122150215.XU Active CN215679761U (en) | 2021-09-07 | 2021-09-07 | Demonstration device for physical chemistry experiments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215679761U (en) |
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2021
- 2021-09-07 CN CN202122150215.XU patent/CN215679761U/en active Active
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