CN214681791U

CN214681791U - An evaporating dish for chemical experiments to prevent gas leakage

Info

Publication number: CN214681791U
Application number: CN202022097837.6U
Authority: CN
Inventors: 刘家乐; 景兰珺
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-11-12
Anticipated expiration: 2030-09-22

Abstract

The utility model discloses an evaporating dish for chemical experiments for preventing gas leakage, which relates to the technical field of chemical experiment equipment, comprising a base, a water bath assembly is installed on the top of the base, and an evaporation assembly is installed inside the water bath assembly , Through the top cover assembly, the evaporating environment can be closed during the process of evaporating the medicine, preventing gas leakage, and preventing the experimenter from inhaling the gas. The gas can be directly discharged into the ventilation duct through the air pump to avoid direct contact with people. Through the geared motor and stirring The assembly can automatically stir the medicine to avoid uneven heating of the medicine and increase the heating area of the medicine. The water bath assembly can directly add water and heat the water to complete the water bath. No additional experimental equipment is required, and the experimental steps are reduced. The slice can make it easier for the experimenter to take out the evaporating dish through the crucible tongs, and prevent the crucible tongs from contaminating the medicine.

Description

Evaporation pan for chemical experiment for preventing gas leakage

Technical Field

The utility model belongs to the technical field of chemistry experiment equipment technique and specifically relates to an evaporation pan for chemistry experiments that prevents gas leakage is related to.

Background

The evaporating dish is a laboratory equipment, can be used for evaporating concentrated solution, can directly heat on a tripod, can also indirectly heat by asbestos net, water bath and the like, the common specification has 6, 9, 12, 18 cm and the like according to the caliber size, different specifications can be selected according to different purposes, the existing evaporating dish for the laboratory is used for stirring medicines mostly in a manual stirring mode, the medicines can not be fully stirred, the medicines are heated unevenly, the evaporation time is prolonged, meanwhile, the manual stirring can cause hands of experimenters to be sore, on the other hand, the evaporation can generate gas, some gas peculiar smell is heavy and even has toxicity, even a small amount of gas can still be leaked in a ventilation cabinet, the experimenters can suck, the health is seriously harmed, meanwhile, part of the medicines need to be heated by water bath, the existing evaporating dish needs to be additionally matched with experimental equipment such as beakers and the like to finish the water bath, it is very troublesome, resulting in cumbersome evaporation steps and time waste.

SUMMERY OF THE UTILITY MODEL

In order to overcome not enough among the background art, the utility model discloses a prevent evaporating dish for chemical experiments of gas leakage, the utility model discloses can stir the medicine automatically, make the medicine by intensive mixing, be heated evenly, can also prevent the aching pain of experimenter hand, can prevent that the gas of evaporation from revealing, possess the water-bath heating function, do not need extra experimental device cooperation.

In order to realize the utility model aims at, the utility model adopts the following technical scheme:

an evaporation pan for chemical experiments for preventing gas leakage comprises a base, wherein a water bath assembly is installed at the top of the base, an evaporation assembly is installed inside the water bath assembly, a heating assembly is installed inside the evaporation assembly, a top cover assembly is arranged above the water bath assembly, the left side and the right side of the top cover assembly are fixedly connected with one ends of two connecting frames respectively, fixed tables are fixed on the left side and the right side of the top of the base, electric telescopic rods are installed on the two fixed tables, the other ends of the two electric telescopic rods are fixedly connected with the other ends of the two connecting frames respectively, a speed reduction motor is fixed at the top center of the top cover assembly through a motor support, a disc is arranged on the lower side of the top cover assembly, an output shaft of the speed reduction motor is connected with the upper end of a main shaft, and the lower end of the main shaft is connected with the top center of the disc, the stirring assembly is installed to the downside of disc, the air pump is still installed at the top of top cap assembly, the input port of air pump passes through pipe connection the top cap assembly, the delivery outlet of air pump passes through another pipe connection outside ventilation pipe, it is left install control switch group on the fixed station, control switch group respectively with external power source the air pump gear motor electric telescopic handle electric connection.

The water bath assembly includes a water bath section of thick bamboo, separates the temperature cover, places mouth, heating wire I, the bottom of a water bath section of thick bamboo is located two between the fixed station, the top of a water bath section of thick bamboo is equipped with place the mouth, the outside of a water bath section of thick bamboo is equipped with separate the temperature cover, separate the temperature cover with be equipped with spiral distribution between the water bath section of thick bamboo heating wire I, place mouth department and install the evaporation assembly, heating wire I with control switch organizes electric connection.

The evaporation assembly includes evaporation dish, joint ring, evaporation dish shell, inner chamber I, the outside of evaporation dish is equipped with the evaporation dish shell, the evaporation dish shell with be equipped with between the evaporation dish inner chamber I, install in the inner chamber I the heating assembly, the upper end outside of evaporation dish shell has been cup jointed the joint ring, the joint ring with place a mouthful joint.

The upper side of joint ring is equipped with the expansion piece, the cross-section of expansion piece is convex, the both sides of expansion piece all are equipped with anti-skidding line.

The heating assembly includes heat conduction inner shell, heat conduction shell, heating wire II, inner chamber II, the outside of heat conduction inner shell is equipped with the heat conduction shell, the heat conduction shell with be equipped with between the heat conduction inner shell inner chamber II, be equipped with spiral distribution in the inner chamber II the heating wire II, it has heat conduction sand to fill in the inner chamber II, heating wire II with control switch group electric connection.

The top cap assembly includes top cap, one-way discharge valve, one-way admission valve, the left and right sides of top cap all is fixed with the link, the central through-hole of top cap pass through the bearing with the main shaft rotates to be connected, install respectively on the top cap one-way discharge valve with one-way admission valve, one-way discharge valve's delivery outlet passes through pipe connection the input port of air pump.

The upper end of the stirring assembly is connected with the eccentric position at the bottom of the disc, the number of the stirring assemblies is not less than two, and not less than two the stirring assemblies are distributed along the side face of the disc at equal angles.

The stirring assembly includes main stirring rod, arc stirring rod, vice stirring rod, is no less than two one side that the lower extreme of main stirring rod is close to each other is equipped with vice stirring rod is no less than two one side that the lower extreme of main stirring rod kept away from each other is equipped with the arc stirring rod.

Since the technical scheme is used, the utility model discloses following beneficial effect has:

the utility model relates to an evaporation pan for chemical experiments for preventing gas leakage, can seal the evaporation environment in the process of making the medicine evaporated through the top cap assembly, prevent gas leakage, avoid experimenters from inhaling gas, can directly discharge gas into air pipe through one-way exhaust valve, one-way air inlet valve and air pump, avoid direct contact with people, prevent the evaporation gas from harming people's health, can automatically stir the medicine through gear motor and stirring assembly, avoid medicine heating nonuniformity, increase the heated area of the medicine, accelerate the evaporation rate, can also avoid the piling up of the medicine during stirring, can pile up the medicine through the heating assembly and carry out multidirectional heating, make it heated uniformly, can directly add water and make water heat up through the water bath assembly, accomplish the water bath, do not need extra experimental equipment, reduce the experimental steps, can make the experimenters more conveniently take out the evaporation pan through crucible tongs through the expansion piece, prevent the crucible tongs from polluting the medicine.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural view of the top cover assembly of the present invention;

FIG. 3 is a side cut-away view of the top cover assembly of the present invention;

FIG. 4 is a cut-away view of the interior of the water bath assembly of the present invention;

FIG. 5 is a cut-away view of the interior of the evaporation assembly of the present invention;

fig. 6 is a sectional view of the inside of the heating assembly of the present invention.

In the figure: 1. a base; 2. an air pump; 3. a motor bracket; 4. a control switch group; 5. a water bath assembly; 501. a water bath cylinder; 502. a heat insulation cover; 503. a placement port; 504. an electric heating wire I; 6. an evaporation assembly; 601. an evaporating dish; 602. expanding slices; 603. a snap ring; 604. an evaporating dish housing; 605. an inner cavity I; 7. a top cover assembly; 701. a top cover; 702. a one-way exhaust valve; 703. a one-way intake valve; 8. a reduction motor; 9. a connecting frame; 10. an electric telescopic rod; 11. a fixed table; 12. a conduit; 13. a main shaft; 14. a stirring assembly; 1401. a main stirring rod; 1402. an arc-shaped stirring rod; 1403. an auxiliary stirring rod; 15. a disc; 16. a heating assembly; 1601. a thermally conductive inner shell; 1602. a thermally conductive housing; 1603. a heating wire II; 1604. and an inner cavity II.

Detailed Description

The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.

The evaporation pan for chemical experiments for preventing gas leakage, which is described in conjunction with the accompanying drawings 1-6, comprises a base 1, a water bath assembly 5 is installed at the top of the base 1, an evaporation assembly 6 is installed inside the water bath assembly 5, a heating assembly 16 is installed inside the evaporation assembly 6, a top cover assembly 7 is arranged above the water bath assembly 5, the left side and the right side of the top cover assembly 7 are respectively and fixedly connected with one end of two connecting frames 9, fixing platforms 11 are fixed on the left side and the right side of the top of the base 1, electric telescopic rods 10 are installed on the two fixing platforms 11, the other ends of the two electric telescopic rods 10 are respectively and fixedly connected with the other ends of the two connecting frames 9, a speed reducing motor 8 is fixed at the top center of the top cover assembly 7 through a motor support 3, a disc 15 is arranged at the lower side of the top cover assembly 7, and an output shaft of the speed reducing motor 8 is connected with the upper end of a main shaft 13, the lower extreme of main shaft 13 is connected the top center of disc 15, stirring assembly 14 is installed to the downside of disc 15, air pump 2 is still installed at the top of top cap assembly 7, the input port of air pump 2 passes through pipe 12 and connects top cap assembly 7, the delivery outlet of air pump 2 is through another outside ventilation pipe is connected to pipe 12, it is left install control switch group 4 on the fixed station 11, control switch group 4 respectively with external power source air pump 2 gear motor 8 electric telescopic handle 10 electric connection.

Water bath assembly 5 includes a water bath section of thick bamboo 501, separates temperature cover 502, places mouth 503, I504 of heating wire, the bottom of a water bath section of thick bamboo 501 is located two between the fixed station 11, the top of a water bath section of thick bamboo 501 is equipped with place mouth 503, the outside of a water bath section of thick bamboo 501 is equipped with separate temperature cover 502, separate temperature cover 502 with be equipped with spiral distribution between a water bath section of thick bamboo 501I 504 of heating wire, place mouth 503 department and install evaporation assembly 6, I504 of heating wire with control switch group 4 electric connection.

The evaporation assembly 6 comprises an evaporation dish 601, a clamping ring 603, an evaporation dish shell 604 and an inner cavity I605, wherein the evaporation dish shell 604 is arranged on the outer side of the evaporation dish 601, the evaporation dish shell 604 and the inner cavity I605 are arranged between the evaporation dish 601, the heating assembly 16 is arranged in the inner cavity I605, the clamping ring 603 is sleeved on the outer side of the upper end of the evaporation dish shell 604, and the clamping ring 603 is clamped with the placing port 503.

The upper side of joint ring 603 is equipped with expansion piece 602, the cross-section of expansion piece 602 is arc, the both sides of expansion piece 602 all are equipped with anti-skidding line.

Heating assembly 16 includes heat conduction inner shell 1601, heat conduction shell 1602, heating wire II 1603, inner chamber II 1604, the outside of heat conduction inner shell 1601 is equipped with heat conduction shell 1602, heat conduction shell 1602 with be equipped with between the heat conduction inner shell 1601 inner chamber II 1604, be equipped with the spiral in the inner chamber II 1604 distribute heating wire II 1603, it has heat conduction sand to fill in the inner chamber II 1604, heating wire II 1603 with control switch group 4 electric connection.

The top cover assembly 7 comprises a top cover 701, a one-way exhaust valve 702 and a one-way intake valve 703, the left side and the right side of the top cover 701 are respectively fixed with the connecting frame 9, a central through hole of the top cover 701 is connected with the main shaft 13 in a rotating mode through a bearing, the top cover 701 is provided with the one-way exhaust valve 702 and the one-way intake valve 703, and an output port of the one-way exhaust valve 702 is connected with an input port of the air pump 2 through the conduit 12.

The upper end of the stirring assembly 14 is connected with the eccentric position at the bottom of the disc 15, the number of the stirring assemblies 14 is not less than two, and not less than two stirring assemblies 14 are distributed along the side face of the disc 15 at equal angles.

The stirring assembly 14 comprises a main stirring rod 1401, an arc-shaped stirring rod 1402 and an auxiliary stirring rod 1403, wherein the auxiliary stirring rod 1403 is arranged on one side, close to each other, of the lower ends of at least two main stirring rods 1401, and the arc-shaped stirring rod 1402 is arranged on one side, far away from each other, of the lower ends of at least two main stirring rods 1401.

Embodiment 1, when the evaporation pan for chemical experiments for preventing gas leakage is used, a power supply is switched on, a medicine to be evaporated is put into the evaporation pan 601, the electric telescopic rod 10 is started to shrink through the control switch group 4, the top cover assembly 7 is driven to descend until the lower end of the top cover 701 presses the top through hole of the evaporation pan 601, at this time, the lower end of the main stirring rod 1401 is in contact with the medicine, the heating wire ii 1603 is started to heat, the temperature is uniformly increased through heat-conducting sand in the inner cavity ii 1604, the medicine in the inner shell 1601 and the evaporation pan 601 is heated through the heat-conducting inner shell 1601, and the speed reduction motor 8 is started to drive the main shaft 13 to rotate, so that the disc 15 drives the stirring assembly 14 to rotate, the main stirring rod 1401 stirs the medicine in the process, the arc-shaped stirring rod 1402 stirs the medicine adhered to the side surface of the evaporation pan 601, and the auxiliary stirring rod 1403 prevents the medicine in the center from being piled up, start air pump 2 and make the air get into top cap 701 from one-way admission valve 703, the gaseous air that evaporates in the drive top cap 701 sends into air pump 2 through one-way discharge valve 702, send into outside air pipe through pipe 12 afterwards, if need carry out water bath heating, then add water to water bath 501 section of thick bamboo through placing mouth 503, later start I504 of heating wire and heat up to water, heat the medicine in the evaporation ware 601 through the temperature, after the evaporation is accomplished, start electric telescopic handle 10 and rise top cap assembly 7, can take out evaporation assembly 6 through crucible clamp gripping extension piece 602, pour out its medicine.

The invention is not described in detail in the prior art, and although the invention has been specifically shown and described in connection with the preferred embodiments, the method and the way of implementing the technical solution are numerous, and only the preferred embodiments of the invention have been described above, it should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims, which are within the scope of the invention.

Claims

1. A chemical experiment evaporating dish for preventing gas leakage, comprising a base (1), characterized in that: a water bath assembly (5) is installed on the top of the base (1), and a water bath assembly (5) is installed on the top of the base (1). An evaporation assembly (6) is installed inside, a heating assembly (16) is installed inside the evaporation assembly (6), and a top cover assembly (7) is arranged above the water bath assembly (5). The left and right sides of the top cover assembly (7) are respectively fixedly connected with one end of the two connecting frames (9), and the left and right sides of the top of the base (1) are fixed with a fixing table (11), and the two said Electric telescopic rods (10) are installed on the fixing table (11), the other ends of the two electric telescopic rods (10) are respectively fixedly connected with the other ends of the two connecting frames (9), and the top cover The top center of the assembly (7) is fixed with a deceleration motor (8) through a motor bracket (3), and a disc (15) is arranged on the lower side of the top cover assembly (7). The output shaft is connected to the upper end of the main shaft (13), the lower end of the main shaft (13) is connected to the top center of the disc (15), and a stirring assembly (14) is installed on the lower side of the disc (15). An air pump (2) is also installed on the top of the top cover assembly (7), and the input port of the air pump (2) is connected to the top cover assembly (7) through a conduit (12). The output port is connected to the external ventilation pipe through another said conduit (12), and a control switch group (4) is installed on the fixed table (11) on the left side, and the control switch group (4) is respectively connected with the external power supply, the The air pump (2), the deceleration motor (8), and the electric telescopic rod (10) are electrically connected.

2. The evaporating dish for chemical experiments for preventing gas leakage according to claim 1, wherein the water bath assembly (5) comprises a water bath tub (501), a temperature insulating cover (502), a placement port ( 503), electric heating wire I (504), the bottom of the water bath tube (501) is located between the two fixing platforms (11), and the top of the water bath tube (501) is provided with the placement port (503) , the temperature insulating cover (502) is arranged on the outside of the water bath (501), and the heating wire I ( 504), the evaporation assembly (6) is installed at the placement port (503), and the heating wire I (504) is electrically connected to the control switch group (4).

3. The evaporating dish for chemical experiments for preventing gas leakage according to claim 2, characterized in that: the evaporating assembly (6) comprises an evaporating dish (601), a snap ring (603), an evaporating dish shell (604), inner cavity I (605), the evaporating dish shell (604) is provided on the outside of the evaporating dish (601), and the evaporating dish shell (604) and the evaporating dish (601) are provided between There is the inner cavity I (605), the heating assembly (16) is installed in the inner cavity I (605), and the snap ring ( 603), the snap ring (603) is snapped with the placement opening (503).

The evaporating dish for chemical experiments for preventing gas leakage according to claim 3, characterized in that: the upper side of the snap ring (603) is provided with an expansion piece (602), and the expansion piece (602) ) has an arc-shaped cross-section, and both sides of the expansion piece (602) are provided with anti-skid patterns.

5. The evaporating dish for chemical experiments for preventing gas leakage according to claim 1, wherein the heating assembly (16) comprises a thermally conductive inner shell (1601), a thermally conductive outer shell (1602), and a heating wire II (1603), inner cavity II (1604), the outer side of the thermally conductive inner shell (1601) is provided with the thermally conductive outer shell (1602), and the thermally conductive outer shell (1602) and the thermally conductive inner shell (1601) are arranged between There is the inner cavity II (1604), the electric heating wire II (1603) distributed in the spiral distribution is arranged in the inner cavity II (1604), the inner cavity II (1604) is filled with heat-conducting sand, and the electric heating The wire II (1603) is electrically connected to the control switch group (4).

6. The evaporating dish for chemical experiments for preventing gas leakage according to claim 1, wherein the top cover assembly (7) comprises a top cover (701), a one-way exhaust valve (702), A one-way intake valve (703), the connecting frame (9) is fixed on the left and right sides of the top cover (701), and the central through hole of the top cover (701) is connected to the main shaft (13) through a bearing ) are connected in rotation, the one-way exhaust valve (702) and the one-way intake valve (703) are respectively installed on the top cover (701), and the output port of the one-way exhaust valve (702) The input port of the air pump (2) is connected through the conduit (12).

7. The evaporating dish for chemical experiments for preventing gas leakage according to claim 1, characterized in that: the upper end of the stirring assembly (14) is connected to the bottom eccentric position of the disc (15), and the The number of stirring assemblies (14) is not less than two, and the no less than two stirring assemblies (14) are equiangularly distributed along the side surface of the disc (15).

8. The evaporating dish for chemical experiments for preventing gas leakage according to claim 7, wherein the stirring assembly (14) comprises a main stirring rod (1401), an arc stirring rod (1402), a secondary stirring rod (1402), a Stirring rods (1403), no less than two main stirring rods (1401) are provided with the auxiliary stirring rods (1403) on the side where the lower ends of the main stirring rods (1401) are close to each other, and there are no less than two main stirring rods (1403). The arc-shaped stirring rod (1402) is provided on the side of the lower ends of 1401) away from each other.