CN214183208U - Ventilation chemical experiment table - Google Patents

Abstract

The utility model discloses a ventilation chemistry experiment platform relates to experimental device technical field, including the laboratory bench body, the top fixedly connected with ventilating board of laboratory bench body, the ventilation hole has been seted up to the inner wall of ventilating board, the internally mounted in ventilation hole has the fan, the internally mounted of ventilating board has first spring. The utility model discloses a set up the dead lever, the carriage release lever, the second spring, fixed fixture block and bolt, place the pointing position on laboratory bench body top with the test-tube rack, then through artifical rotatory dead lever, insert the dead lever in the top mounting groove of laboratory bench body from the fixed block top, then at rotatory bolt, the bolt is rotatory upwards moved, make the second spring receive the extrusion force of carriage release lever when reducing gradually, the second spring recovers and promotes the carriage release lever rebound, carriage release lever rebound makes two sets of fixed fixture blocks pop out from accomodating the groove of seting up of dead lever outer wall, fix the inside at the laboratory bench body with the dead lever.

Description

Ventilation chemical experiment table

Technical Field

The utility model relates to an experimental apparatus technical field specifically is a ventilation chemistry experiment platform.

Background

Experiments refer to one of the basic methods of scientific research, wherein according to the purpose of scientific research, external influences are eliminated as much as possible, main factors are highlighted, special instruments and equipment are used, chemical experiments are used as the best passages for students to leave books and put theories into practice, the theories are highly emphasized by various schools, and the chemical experiments are required to be operated on special chemical experiment tables.

The ventilation effect of the existing chemical experiment table is poor, harmful gas generated in chemical experiments can not be treated, the harmful gas is prevented from being sucked into the body by experimenters, the existing test tube rack for the chemical experiments does not have a fixing device, and the harmful gas falls down easily in accidents, so that experimental liquid in test tubes on the test tube rack flows out, and dangerous accidents are easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that the ventilation effect of a chemical experiment table is poor and a test tube rack is easy to fall down, the ventilation chemical experiment table is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a ventilation chemical experiment table comprises an experiment table body, wherein a ventilation plate is fixedly connected to the top end of the experiment table body, a ventilation hole is formed in the inner wall of the ventilation plate, a fan is arranged inside the ventilation hole, a first spring is arranged inside the ventilation plate, a push plate is fixedly connected to one end of the first spring, an activated carbon plate is arranged inside the ventilation hole, a rotating ring is connected to the outer wall of the ventilation plate, a bevel gear is rotatably connected to one end of the rotating ring, a lead screw is rotatably connected to the bottom end of the bevel gear, a fixing sleeve block is sleeved on the outer wall of the lead screw, a test tube rack is arranged on one side, away from the ventilation plate, of the top end of the experiment table body, a fixing block is fixedly connected to the outer wall of the test tube rack, a fixing rod is connected to the inner wall of the fixing block, a second spring is fixedly connected to the inside of the fixing rod, and a moving rod is fixedly connected to the top end of the second spring, the outer wall of the movable rod is connected with a fixed clamping block, and a bolt is connected to the position, located above the movable rod, inside the fixed rod.

Preferably, both ends fixedly connected with slider of activated carbon board, activated carbon board passes through both ends slider and ventilating board sliding connection.

Preferably, the inner wall of the ventilating board is provided with a mounting groove, and the rotating ring penetrates through the outer wall of the ventilating board and extends into the mounting groove of the inner wall of the ventilating board to be connected with the bevel gear in a rotating mode.

Preferably, the outer wall of dead lever is provided with the screw thread, the dead lever passes through the screw thread and is connected with the fixed block rotation, the inner wall of dead lever be provided with bolt assorted screw thread.

Preferably, the fixed clamping block is rotatably connected with the movable rod through a rotating shaft, and the outer wall of the fixed rod is provided with an accommodating groove matched with the fixed clamping block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the dead lever, the carriage release lever, the second spring, fixed fixture block and bolt, place the test-tube rack in the pointed position on laboratory bench body top, then through artifical rotatory dead lever, insert the dead lever from the fixed block top in the top mounting groove of laboratory bench body, then at rotatory bolt, the bolt rotation moves up, make the second spring receive the extrusion force of carriage release lever when reducing gradually, the second spring recovers and promotes the carriage release lever to move up, the carriage release lever moves up makes two sets of fixed fixture blocks pop out from the storage groove that the dead lever outer wall was seted up, fix the dead lever in the inside of laboratory bench body, thereby fix the test-tube rack at the top of laboratory bench body, avoid the test-tube rack to install unstably, easily lead to the emergence of accident;

2. the utility model is provided with the fan, the activated carbon plate, the rotary ring, the bevel gear, the screw rod and the fixed sleeve block, when the top end of the experiment table body is used for experiment operation, the fan is started at the same time, air is sucked outside the fan, the gas generated by the experiment on the top end of the experiment table body is sucked into the ventilation plate through the ventilation hole, the activated carbon plate is used for filtration treatment, the gas generated by the experiment is prevented from being sucked by experimenters to cause injury to the bodies of the experimenters, when the activated carbon plate needs to be disassembled and replaced, the rotary ring is rotated to drive the bevel gear to rotate, the bevel gear is rotated to drive the screw rod to rotate, the screw rod is rotated to drive the fixed sleeve block to move out from the sliding blocks at the two ends of the activated carbon plate, so that the first spring is not subjected to external extrusion force for restoration any more, the first spring is restored to push the activated carbon plate out from the inside of the ventilation plate through the push plate, the convenience of experimenters is changed, avoids the activated carbon plate to reach saturation to filter effect after the influence.

Drawings

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

fig. 2 is a cross-sectional view of the ventilation board of the present invention;

fig. 3 is the utility model discloses a schematic diagram is fixed to the test-tube rack.

In the figure: 1. a test bed body; 2. a ventilation board; 3. a vent hole; 4. a test tube rack; 5. a fan; 6. A first spring; 7. pushing the plate; 8. rotating the ring; 9. a bevel gear; 10. a screw rod; 11. fixing the sleeve block; 12. An activated carbon plate; 13. fixing the rod; 14. a fixed block; 15. a travel bar; 16. a second spring; 17. fixing the fixture block; 18. and (4) bolts.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1-3, a ventilation chemical experiment table comprises an experiment table body 1, a ventilation plate 2 is fixedly connected to the top end of the experiment table body 1, a ventilation hole 3 is formed in the inner wall of the ventilation plate 2, a fan 5 is installed inside the ventilation hole 3, a first spring 6 is installed inside the ventilation plate 2, a push plate 7 is fixedly connected to one end of the first spring 6, an activated carbon plate 12 is installed inside the ventilation hole 3, a swivel 8 is connected to the outer wall of the ventilation plate 2, a bevel gear 9 is rotatably connected to one end of the swivel 8, a lead screw 10 is rotatably connected to the bottom end of the bevel gear 9, a fixing sleeve 11 is sleeved on the outer wall of the lead screw 10, a test tube rack 4 is arranged on one side of the top end of the experiment table body 1, which is far away from the ventilation plate 2, a fixing block 14 is fixedly connected to the outer wall of the test tube rack 4, a fixing rod 13 is connected to the inner wall of the fixing block 14, and a second spring 16 is fixedly connected to the inside of the fixing rod 13, the top end of the second spring 16 is fixedly connected with a movable rod 15, the outer wall of the movable rod 15 is connected with a fixed clamping block 17, and the inside of the fixed rod 13 is positioned above the movable rod 15 and is connected with a bolt 18.

Please refer to fig. 2, the two ends of the activated carbon plate 12 are fixedly connected with the sliding blocks, and the activated carbon plate 12 is slidably connected with the ventilation plate 2 through the sliding blocks at the two ends, so that the activated carbon plate 12 can be conveniently mounted and dismounted.

Please refer to fig. 2, the inner wall of the ventilating board 2 is provided with a mounting groove, and the rotating ring 8 penetrates through the outer wall of the ventilating board 2 and extends into the mounting groove of the inner wall of the ventilating board 2 to be rotatably connected with the bevel gear 9, so that the rotating ring 8 rotates to drive the bevel gear 9 to rotate.

Please refer to fig. 3, the outer wall of the fixing rod 13 is provided with a thread, the fixing rod 13 is rotatably connected with the fixing block 14 through the thread, the inner wall of the fixing rod 13 is provided with a thread matched with the bolt 18, so that the fixing rod 13 can be conveniently installed, and the bolt 18 can rotate and move.

Please refer to fig. 3, the fixed latch 17 is rotatably connected to the moving rod 15 through a rotating shaft, and the outer wall of the fixed rod 13 is provided with a receiving slot matched with the fixed latch 17, so that the moving rod 15 can move to receive or unfold the fixed latch 17.

The working principle is as follows: firstly, placing the test tube rack 4 at the pointing position of the top end of the experiment table body 1, then manually rotating the fixed rod 13, inserting the fixed rod 13 into the mounting groove at the top end of the experiment table body 1 from the top end of the fixed block 14, then rotating the bolt 18, rotating the bolt 18 to move upwards, so that when the extrusion force of the movable rod 15 on the second spring 16 is gradually reduced, the second spring 16 recovers to push the movable rod 15 to move upwards, the movable rod 15 moves upwards to make two groups of fixed fixture blocks 17 pop out from the accommodating groove formed in the outer wall of the fixed rod 13, fixing the fixed rod 13 inside the experiment table body 1, thereby fixing the test tube rack 4 at the top end of the experiment table body 1, avoiding the unstable mounting of the test tube rack 4 and easily causing accidents, when the experiment operation is carried out at the top end of the experiment table body 1, simultaneously starting the fan 5, sucking air from the outside, it inhales 2 insides to vent plate through ventilation hole 3 with the gas of 1 top of laboratory bench body experiment production, carry out filtration treatment through activated carbon plate 12, the gas of avoiding the experiment production is inhaled by the experimenter, cause the injury to the experimenter health, when needs dismantle change activated carbon plate 12, through artifical rotatory change ring 8, change ring 8 is rotatory to drive bevel gear 9 rotatory, bevel gear 9 is rotatory to drive lead screw 10 rotatory, lead screw 10 is rotatory to drive fixed nest block 11 and removes from activated carbon plate 12 both ends slider, make first spring 6 no longer receive external extrusion force and recover, first spring 6 recovers and releases activated carbon plate 12 from 2 insides of vent plate through push pedal 7, make things convenient for the experimenter to change, avoid activated carbon plate 12 to reach the saturation, thereby filter effect after the influence.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. A ventilation chemical experiment table comprises an experiment table body (1), and is characterized in that: the test bed comprises a test bed body (1), wherein a ventilating plate (2) is fixedly connected to the top end of the test bed body (1), a ventilating hole (3) is formed in the inner wall of the ventilating plate (2), a fan (5) is installed inside the ventilating hole (3), a first spring (6) is installed inside the ventilating plate (2), a push plate (7) is fixedly connected to one end of the first spring (6), an activated carbon plate (12) is installed inside the ventilating hole (3), a rotating ring (8) is connected to the outer wall of the ventilating plate (2), a bevel gear (9) is rotatably connected to one end of the rotating ring (8), a lead screw (10) is rotatably connected to the bottom end of the bevel gear (9), a fixing sleeve block (11) is sleeved on the outer wall of the lead screw (10), a test tube rack (4) is arranged on one side, far away from the ventilating plate (2), of the top end of the test bed body (1), and a fixing block (14) is fixedly connected to the outer wall of the test tube rack (4), the inner wall of fixed block (14) is connected with dead lever (13), the inside fixedly connected with second spring (16) of dead lever (13), the top fixedly connected with carriage release lever (15) of second spring (16), the outer wall connection of carriage release lever (15) has fixed fixture block (17), the inside top that is located carriage release lever (15) of dead lever (13) is connected with bolt (18).

2. A vented chemical laboratory bench according to claim 1, wherein: the two ends of the activated carbon plate (12) are fixedly connected with sliding blocks, and the activated carbon plate (12) is connected with the ventilating plate (2) in a sliding mode through the sliding blocks at the two ends.

3. A vented chemical laboratory bench according to claim 1, wherein: the inner wall of the ventilating plate (2) is provided with a mounting groove, and the rotating ring (8) penetrates through the outer wall of the ventilating plate (2) and extends into the mounting groove in the inner wall of the ventilating plate (2) to be rotatably connected with the bevel gear (9).

4. A vented chemical laboratory bench according to claim 1, wherein: the outer wall of the fixing rod (13) is provided with threads, the fixing rod (13) is rotatably connected with the fixing block (14) through the threads, and the inner wall of the fixing rod (13) is provided with threads matched with the bolt (18).

5. A vented chemical laboratory bench according to claim 1, wherein: the fixed clamping block (17) is rotatably connected with the moving rod (15) through a rotating shaft, and the outer wall of the fixed rod (13) is provided with a containing groove matched with the fixed clamping block (17).

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