CN214253605U - Experimental demonstration device is prepared to junior middle school's chemistry oxygen - Google Patents

Abstract

The application discloses junior middle school's chemistry oxygen prepares experiment presentation device, including base, fixed plate and place storage device, lift fixing device and collection device, place storage device and include sucking disc, carriage, alcohol burner, motor, transfer line, driving belt, belt pulley, spout, second screw rod, second movable block, backup pad, standing groove, accomodate groove, limiting plate and first spring, the top one side fixed connection carriage of base, the groove of accomodating has been seted up to the inside of carriage. Through two splint of the fixed cover inside of extrusion, splint drive the compression of second spring, place the test tube between two splint, loosen two splint, first spring resets and promotes splint and press from both sides the test tube tightly, and the convenience is fixed the test tube, through the inside spacing frame of basin and collection bottle, and the convenience is collected the oxygen of preparing, facilitates the use and preserves.

Description

Experimental demonstration device is prepared to junior middle school's chemistry oxygen

Technical Field

The application relates to an experiment demonstration device, in particular to a junior middle school chemistry oxygen preparation experiment demonstration device.

Background

When chemistry teaching oxygen of junior middle school was prepared, need utilize oxygen to prepare experiment presentation device and carry out the experiment demonstration, heat to potassium permanganate and make its reaction become oxygen to make oxygen, teach through the mode of experiment demonstration, can deepen student's understanding.

There is certain drawback current junior middle school chemistry oxygen to prepare experiment presentation device when using, current junior middle school chemistry oxygen is prepared experiment presentation device and is general to the fixed effect of test tube when using, the cracked condition that drops appears in the test tube easily, there is the potential safety hazard, and current junior middle school chemistry oxygen is prepared experiment presentation device and needs to cooperate the supporting shoe to support the alcohol burner, it is not convenient enough when using, the inconvenient accomodating of alcohol burner, current junior middle school chemistry oxygen is prepared experiment presentation device and can not carry on spacingly to the collecting flask, the collecting flask appears crooked easily when collecting oxygen, certain influence has been brought for in-service use. Therefore, a demonstration device for the junior middle school chemical oxygen production experiment is provided aiming at the problems.

Disclosure of Invention

A junior middle school chemistry oxygen preparation experiment demonstration device comprises a base, a fixing plate, a placing and containing device, a lifting and fixing device and a collecting device;

the placing and accommodating device comprises a sucker, a supporting frame, an alcohol lamp, a motor, a transmission rod, a transmission belt, a belt pulley, a sliding groove, a second screw rod, a second movable block, a supporting plate, a placing groove, an accommodating groove, a limiting plate and a first spring, wherein the supporting frame is fixedly connected to one side of the top end of the base, and the accommodating groove is formed in the supporting frame;

the lifting fixing device comprises a fixing plate, a movable groove, a rotary table, a first screw, a first movable block, a fixing sleeve, a knob, an inner groove, a second spring, a clamping plate and a test tube, wherein the fixing plate is fixedly connected to the top end of the base, and the groove is formed in the top of the fixing plate;

the collecting device comprises a guide pipe, a water tank, a limiting frame, a collecting bottle and a connector, wherein the water tank is fixedly connected to one side of the top of the base, and the limiting frame is fixedly connected to the inside of the water tank.

Further, the bottom lateral wall fixed connection sucking disc of base, the quantity of sucking disc is six, six two bisymmetry distributions of sucking disc are in the bottom both sides of base.

Further, the internally mounted of carriage has the motor, the motor is located the inside of accomodating the groove, the output of motor has cup jointed the transfer line, the one end of transfer line is rotated and is connected the bottom at the carriage.

Furthermore, the inside both sides of carriage have all been seted up the spout, the inside of spout is rotated and is connected the second screw rod, the quantity of second screw rod is two, two the second screw rod symmetric distribution is in the inside both sides of carriage, the belt pulley has all been cup jointed to the one end of second screw rod and the one end of transfer line, the quantity of belt pulley is three, three the belt pulley twines between two liang has drive belt.

Further, the second screw rod threaded connection second movable block, the quantity of second movable block is two, two second movable block fixed connection is at the both ends lateral wall of backup pad, the standing groove has been seted up at the top of backup pad.

Further, the inside sliding connection limiting plate of standing groove, the quantity of limiting plate is two, two the one end of the first spring of one end fixed connection of limiting plate, the inner wall of the other end fixed connection standing groove of first spring, the alcohol burner has been placed to the inside of standing groove, the bottom outside of alcohol burner supports the inner wall of tight two limiting plates.

Furthermore, a movable groove is formed in the fixing plate, the movable groove is rotatably connected with a first screw rod, the top end of the first screw rod penetrates through the top of the fixing plate and is fixedly connected with a turntable, and the turntable is rotatably connected in the groove.

Further, a first movable block of first screw rod threaded connection, the one end of first movable block is passed through the knob and is rotated the one end of connecting fixed cover, the inside of fixed cover is provided with the test tube, the one end of test tube intercommunication pipe, the other end of pipe communicates the one end of connector.

Further, the collecting bottle has been placed to the inside of spacing frame, the bottom threaded connection connector of collecting bottle, the inside packing of spacing frame and basin has water.

Further, the inside of fixed cover has been seted up the inside groove, the equal fixed connection second spring's in inside both ends one end of inside groove, the other end fixed connection splint's of second spring one end, the quantity of splint is two, two the centre gripping has the test tube between the splint.

The beneficial effect of this application is: the application provides an experiment presentation device is prepared to junior middle school's chemistry oxygen that easy to assemble and dismantlement and be convenient for altitude mixture control and alcohol burner are accomodate.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic overall perspective view of an embodiment of the present application;

FIG. 2 is a schematic diagram of the overall internal structure of an embodiment of the present application;

fig. 3 is a schematic view of an internal structure of a support frame according to an embodiment of the present application.

Fig. 4 is a schematic structural view of the inner groove, the second spring, the clamping plate, the test tube and the fixing sleeve according to an embodiment of the present application.

Fig. 5 is a schematic position diagram of the support plate, the placement grooves, the limiting plate and the first spring according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of the first movable block, the fixed sleeve and the knob according to an embodiment of the present application.

In the figure: 1. the base, 2, the sucking disc, 3, the carriage, 4, the alcohol burner, 5, the fixed plate, 6, the activity groove, 7, the recess, 8, the carousel, 9, first screw rod, 10, first movable block, 11, fixed cover, 12, the knob, 13, the pipe, 14, the basin, 15, spacing frame, 16, the receiving flask, 17, the connector, 18, the motor, 19, the transfer line, 20, driving belt, 21, the belt pulley, 22, the spout, 23, the second screw rod, 24, the second movable block, 25, the backup pad, 26, the standing groove, 27, accomodate the groove, 28, the limiting plate, 29, first spring, 30, the inside groove, 31, the second spring, 32, splint, 33, the test tube.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-6, a demonstration device for a junior middle school chemical oxygen production experiment comprises a base 1, a fixing plate 5, a placing and accommodating device, a lifting and fixing device and a collecting device;

the placing and accommodating device comprises a sucker 2, a supporting frame 3, an alcohol lamp 4, a motor 18, a transmission rod 19, a transmission belt 20, a belt pulley 21, a sliding chute 22, a second screw 23, a second movable block 24, a supporting plate 25, a placing groove 26, an accommodating groove 27, a limiting plate 28 and a first spring 29, wherein the supporting frame 3 is fixedly connected to one side of the top end of the base 1, and the accommodating groove 27 is formed in the supporting frame 3;

the lifting fixing device comprises a fixed plate 5, a movable groove 6, a groove 7, a turntable 8, a first screw 9, a first movable block 10, a fixed sleeve 11, a knob 12, an inner groove 30, a second spring 31, a clamping plate 32 and a test tube 33, the fixed plate 5 is fixedly connected to the top end of the base 1, and the groove 7 is formed in the top of the fixed plate 5;

the collecting device comprises a guide pipe 13, a water tank 14, a limiting frame 15, a collecting bottle 16 and a connector 17, wherein the water tank 14 is fixedly connected to one side of the top of the base 1, and the limiting frame 15 is fixedly connected to the inside of the water tank 14.

The side wall of the bottom end of the base 1 is fixedly connected with the suckers 2, the number of the suckers 2 is six, and the six suckers 2 are distributed on two sides of the bottom end of the base 1 in a pairwise symmetrical manner, so that the structure is more reasonable, and the connection is convenient; a motor 18 is arranged in the supporting frame 3, the motor 18 is positioned in the accommodating groove 27, the output end of the motor 18 is sleeved with a transmission rod 19, one end of the transmission rod 19 is rotatably connected to the bottom of the supporting frame 3, the structure is more reasonable, and the connection is convenient; the two sides of the inside of the supporting frame 3 are both provided with sliding grooves 22, the inside of each sliding groove 22 is rotatably connected with two second screws 23, the number of the second screws 23 is two, the two second screws 23 are symmetrically distributed on the two sides of the inside of the supporting frame 3, one end of each second screw 23 and one end of each transmission rod 19 are both sleeved with belt pulleys 21, the number of the belt pulleys 21 is three, and transmission belts 20 are wound between every two three belt pulleys 21, so that the structure is more reasonable, and the connection is convenient; the second screw 23 is in threaded connection with two second movable blocks 24, the number of the second movable blocks 24 is two, the two second movable blocks 24 are fixedly connected to the side walls of the two ends of the supporting plate 25, and the top of the supporting plate 25 is provided with a placing groove 26, so that the structure is more reasonable and the connection is convenient; the interior of the placing groove 26 is slidably connected with two limiting plates 28, one end of each of the two limiting plates 28 is fixedly connected with one end of a first spring 29, the other end of each of the first springs 29 is fixedly connected with the inner wall of the placing groove 26, the alcohol burner 4 is placed in the placing groove 26, the outer side of the bottom of the alcohol burner 4 tightly abuts against the inner walls of the two limiting plates 28, the structure is more reasonable, and the connection is convenient; a movable groove 6 is formed in the fixed plate 5, a first screw 9 is rotatably connected in the movable groove 6, the top end of the first screw 9 penetrates through the top of the fixed plate 5 and is fixedly connected with a turntable 8, and the turntable 8 is rotatably connected in the groove 7, so that the structure is more reasonable, and the connection is convenient; the first screw 9 is in threaded connection with a first movable block 10, one end of the first movable block 10 is rotatably connected with one end of a fixed sleeve 11 through a knob 12, a test tube 33 is arranged inside the fixed sleeve 11, one end of the test tube 33 is communicated with one end of a guide tube 13, and the other end of the guide tube 13 is communicated with one end of a connector 17, so that the structure is more reasonable and the connection is convenient; a collecting bottle 16 is placed in the limiting frame 15, the bottom of the collecting bottle 16 is in threaded connection with a connector 17, and water is filled in the limiting frame 15 and the water tank 14, so that the structure is more reasonable and the connection is convenient; the inside of fixed cover 11 has been seted up inside groove 30, the one end of the equal fixed connection second spring 31 in inside both ends of inside groove 30, the one end of the other end fixed connection splint 32 of second spring 31, the quantity of splint 32 is two, two test tube 33 is held to the clamp between the splint 32, and the structure is more reasonable, is convenient for connect.

When the device is used, firstly, all the electrical components in the device are externally connected with a control switch and a power supply, then the motor 18 is started, the motor 18 drives the transmission rod 19 to rotate, the transmission rod 19 drives the two second screw rods 23 to rotate through the belt pulley 21 and the transmission belt 20, the second screw rods 23 and the second movable blocks 24 rotate in a threaded manner, so that the second movable blocks 24 slide and move upwards along the sliding grooves 22, the second movable blocks 24 drive the supporting plate 25 to move in the accommodating grooves 27 in the supporting frame 3, the limiting plates 28 are extruded, the limiting plates 28 slide along the accommodating grooves 26, so that the first springs 29 are compressed, then the alcohol lamp 4 is placed in the accommodating grooves 26, the limiting plates 28 are loosened, the limiting plates 28 clamp and fix the bottom of the alcohol lamp 4 under the action of the first springs 29, so that the alcohol lamp 4 is conveniently fixed, meanwhile, the alcohol lamp 4 is conveniently accommodated, and by rotating the turntable 8, carousel 8 drives first screw rod 9 and rotates, thereby first screw rod 9 rotates with first movable block 10 screw thread and drives first movable block 10 and move up, first movable block 10 drives fixed cover 11 and shifts up along one side of fixed plate 5, thereby the height of the fixed cover 11 of adjustment, two splint 32 through the fixed cover 11 inside of extrusion, splint 32 drives the compression of second spring 31, place test tube 33 between two splint 32, loosen two splint 32, first spring 29 resets and promotes splint 32 and press from both sides test tube 33 tightly, conveniently fix test tube 33, through basin 14 inside spacing frame 15 and collection bottle, the convenience is collected the oxygen of preparing, facilitate the use and preserve.

The application has the advantages that:

1. the alcohol lamp fixing device is reasonable in structure, the motor drives the transmission rod to rotate through starting the motor, the transmission rod drives the two second screw rods to rotate through the belt pulley and the transmission belt, the second screw rods rotate with the second movable block in a threaded mode so that the second movable block slides and moves upwards along the sliding groove, the second movable block drives the supporting plate to move inside the accommodating groove in the supporting frame, the limiting plate slides along the accommodating groove through extrusion, the first spring is compressed through the limiting plate, then the alcohol lamp is placed in the accommodating groove, the limiting plate is loosened, the limiting plate clamps and fixes the bottom of the alcohol lamp under the action of the first spring, and therefore the alcohol lamp is conveniently fixed, and meanwhile the alcohol lamp is convenient to accommodate;

2. this application is rational in infrastructure, and through rotating the carousel, the carousel drives first screw rod and rotates, thereby first screw rod and first movable block screw thread rotate and drive first movable block and shift up, and first movable block drives fixed cover and shifts up along one side of fixed plate to the height of the fixed cover of adjustment.

3. This application is rational in infrastructure, through two splint of the fixed cover inside of extrusion, splint drive the compression of second spring, place the test tube between two splint, loosen two splint, and first spring resets and promotes splint and press from both sides the test tube tightly, and the convenience is fixed the test tube, through the inside spacing frame of basin and collection bottle, and the convenience is collected the oxygen of preparing, facilitates the use and preserves.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a junior middle school's chemistry oxygen prepares experiment presentation device which characterized in that: comprises a base (1), a fixed plate (5), a placing and containing device, a lifting and fixing device and a collecting device;

the placing and containing device comprises a sucker (2), a supporting frame (3), an alcohol lamp (4), a motor (18), a transmission rod (19), a transmission belt (20), a belt pulley (21), a sliding groove (22), a second screw rod (23), a second movable block (24), a supporting plate (25), a placing groove (26), a containing groove (27), a limiting plate (28) and a first spring (29), wherein the supporting frame (3) is fixedly connected to one side of the top end of the base (1), and the containing groove (27) is formed in the supporting frame (3);

the lifting fixing device comprises a fixing plate (5), a movable groove (6), a groove (7), a rotary table (8), a first screw (9), a first movable block (10), a fixed sleeve (11), a knob (12), an inner groove (30), a second spring (31), a clamping plate (32) and a test tube (33), the fixing plate (5) is fixedly connected to the top end of the base (1), and the groove (7) is formed in the top of the fixing plate (5);

the collecting device comprises a guide pipe (13), a water tank (14), a limiting frame (15), a collecting bottle (16) and a connector (17), wherein the water tank (14) is fixedly connected to one side of the top of the base (1), and the limiting frame (15) is fixedly connected to the inner portion of the water tank (14).

2. The demonstration device for a junior middle school chemistry oxygen preparation experiment as claimed in claim 1, wherein: the bottom lateral wall fixed connection sucking disc (2) of base (1), the quantity of sucking disc (2) is six, six sucking disc (2) two bisymmetry distributions are in the bottom both sides of base (1).

3. The demonstration device for a junior middle school chemistry oxygen preparation experiment as claimed in claim 1, wherein: the utility model discloses a support frame, including support frame (3), the internally mounted of support frame (3) has motor (18), motor (18) are located the inside of accomodating groove (27), the output of motor (18) has cup jointed transfer line (19), the one end of transfer line (19) is rotated and is connected the bottom at support frame (3).

4. The demonstration device for a junior middle school chemistry oxygen preparation experiment as claimed in claim 1, wherein: spout (22) have all been seted up to the inside both sides of carriage (3), the inside of spout (22) is rotated and is connected second screw rod (23), the quantity of second screw rod (23) is two, two second screw rod (23) symmetric distribution is in the inside both sides of carriage (3), belt pulley (21) have all been cup jointed with the one end of transfer line (19) to the one end of second screw rod (23), the quantity of belt pulley (21) is three, and is three belt pulley (21) are twined around having twined driving belt (20) between two liang.

5. The demonstration device for a junior middle school chemistry oxygen preparation experiment as claimed in claim 1, wherein: the second screw rod (23) is in threaded connection with two second movable blocks (24), the number of the second movable blocks (24) is two, the second movable blocks (24) are fixedly connected to the side walls of the two ends of the supporting plate (25), and a placing groove (26) is formed in the top of the supporting plate (25).

6. The demonstration device for a junior middle school chemistry oxygen preparation experiment as claimed in claim 1, wherein: the inside sliding connection limiting plate (28) of standing groove (26), the quantity of limiting plate (28) is two, two the one end fixed connection one end of limiting plate (28) first spring (29), the inner wall of the other end fixed connection standing groove (26) of first spring (29), alcohol burner (4) have been placed to the inside of standing groove (26), the inner wall of two limiting plates (28) is supported tightly in the bottom outside of alcohol burner (4).

7. The demonstration device for a junior middle school chemistry oxygen preparation experiment as claimed in claim 1, wherein: activity groove (6) have been seted up to the inside of fixed plate (5), the inside rotation of activity groove (6) is connected first screw rod (9), top and fixed connection carousel (8) of fixed plate (5) are run through on the top of first screw rod (9), carousel (8) rotate to be connected in the inside of recess (7).

8. The demonstration device for a junior middle school chemistry oxygen preparation experiment as claimed in claim 1, wherein: first screw rod (9) threaded connection first movable block (10), the one end of first movable block (10) is passed through knob (12) and is rotated the one end of connecting fixed cover (11), the inside of fixed cover (11) is provided with test tube (33), the one end of the one end intercommunication pipe (13) of test tube (33), the one end of the other end intercommunication connector (17) of pipe (13).

9. The demonstration device for a junior middle school chemistry oxygen preparation experiment as claimed in claim 1, wherein: collecting bottle (16) have been placed to the inside of spacing frame (15), the bottom threaded connection connector (17) of collecting bottle (16), the inside packing of spacing frame (15) and basin (14) has water.

10. The demonstration device for a junior middle school chemistry oxygen preparation experiment as claimed in claim 1, wherein: the inside of fixed cover (11) has been seted up inside groove (30), the equal fixed connection one end of second spring (31) in inside both ends of inside groove (30), the other end fixed connection one end of splint (32) of second spring (31), the quantity of splint (32) is two, two the centre gripping has test tube (33) between splint (32).

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