CN216801034U

CN216801034U - Atomic absorption hood for increasing air flow speed in laboratory

Info

Publication number: CN216801034U
Application number: CN202220462367.5U
Authority: CN
Inventors: 袁九平; 熊桂林
Original assignee: Hubei Ternuo Laboratory Equipment Co ltd
Current assignee: Hubei Ternuo Laboratory Equipment Co ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-06-24
Anticipated expiration: 2032-03-04

Abstract

The utility model discloses an atomic absorption hood for increasing air flow velocity for a laboratory, which belongs to the technical field of laboratory auxiliary equipment and comprises an atomic hood, wherein a flow guide device is arranged inside the atomic hood, the bottom of the outer surface of the atomic hood is in threaded connection with a collecting hopper, an air port adjusting device is arranged on the outer surface of the collecting hopper, the outer surface of the collecting hopper is fixedly connected with the inner surface of an annular plate, a plurality of clamping grooves are formed in one side of the inner wall of the annular hopper, and the air port adjusting device comprises a bearing which is fixedly connected to the inner wall of the annular plate. This increase air speed's laboratory is with atomic absorption cover, through setting up wind gap adjusting device, and through the elasticity of the flexible sack in wind gap adjusting device bottom, and then can adjust the air intake area of atomic cover according to actual demand, simultaneously through reducing atomic cover air intake area to can increase air speed, improve the speed of induced drafting, improve gaseous absorbing capacity simultaneously.

Description

Atomic absorption hood for increasing air flow speed for laboratory

Technical Field

The utility model belongs to the technical field of laboratory auxiliary equipment, and particularly relates to an atomic absorption hood for a laboratory, which is used for increasing the air flow speed.

Background

In biological and chemical laboratories, the atomic absorption cover is often in direct contact with chemicals which are very toxic, corrosive, inflammable and explosive, volatilization, electrolysis and the like of the chemicals can cause very large damage to human bodies, and in order to reduce the damage of the tiny particles to the human bodies, the atomic absorption cover is usually used for absorbing the chemicals.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects in the prior art, the utility model provides the laboratory atomic absorption cover for increasing the air flow velocity, and solves the problems that the air flow velocity of the atomic absorption cover in the prior art is low, the generated air pressure is low, and the air suction velocity is low due to the large area of the air suction opening of the air suction cover.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an increase atomic absorption cover for laboratory of air velocity, includes the atom cover, the inside of atom cover is provided with guiding device, the bottom threaded connection of atom cover surface has the collection fill, the surface of collecting the fill is provided with wind gap adjusting device, the surface of collecting the fill is connected with the internal surface fixed of annular slab, a plurality of draw-in groove has been seted up to one side of annular fill inner wall.

The air port adjusting device comprises a bearing, the bearing is fixedly connected to the inner wall of the annular plate, a worm ring is rotatably connected to the inner surface of the bearing, the worm ring is respectively meshed with a plurality of worm gears, the worm gears are hinged to two connecting blocks through first hinge pins, and the two connecting blocks are fixedly connected to the outer surface of the collecting hopper.

As a further scheme of the utility model: the outer surface of the collecting hopper is fixedly connected with protruding rods, and the number of the protruding rods is set to be a plurality.

As a further scheme of the utility model: the bottom of collecting the fill and the upside fixed connection of flexible sack, the surface fixed connection of flexible sack has a plurality of connecting rod, a plurality of the connecting rod respectively with one side fixed connection of a plurality of worm wheel.

As a further scheme of the utility model: the outer fixed surface of worm circle is connected with two fixed blocks, two the fixed block passes through the second round pin axle and articulates with the cardboard, the equal fixedly connected with torsional spring in both sides of cardboard, two the torsional spring is fixed connection respectively in the opposite face of two fixed blocks, the one end setting of cardboard is in the draw-in groove.

As a further scheme of the utility model: the flow guide device comprises a conical shell, wherein a fixing rod is fixedly connected to the outer surface of the conical shell, and the fixing rod is fixedly connected to the inner wall of the atom shield.

As a further scheme of the utility model: the inside fixedly connected with motor of toper shell, the output shaft fixedly connected with helical blade of motor.

(III) advantageous effects

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

1. this increase air speed's laboratory is with atomic absorption cover, through setting up wind gap adjusting device, and through the elasticity of the flexible sack in wind gap adjusting device bottom, and then can adjust the air intake area of atomic cover according to actual demand, simultaneously through reducing atomic cover air intake area to can increase air speed, improve the speed of induced drafting, improve gaseous absorbing capacity simultaneously.

2. This increase air velocity's laboratory is with atomic absorption cover through setting up motor and helical blade, and under the motor rotary motion through control helical blade for motor helical blade moves, and helical blade's spiral design can form the hyperboloid in the axial and be used for the water conservancy diversion, can accelerate the flow velocity of air current in radial direction, and then has increased the wind pressure through axial and radial two effects, reaches quick exhaust effect.

3. This increase airflow speed's laboratory is with atomic absorption cover through setting up torsional spring, second round pin axle and cardboard, under the elasticity potential energy effect that resets of torsional spring for the second round pin axle drives the cardboard motion, makes the cardboard can block into the draw-in groove, thereby can realize the locking to the worm gear position, improves the stability that the wind gap was adjusted.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic perspective sectional view of the collecting hopper of the present invention;

FIG. 4 is an enlarged schematic view of the utility model at A;

FIG. 5 is a schematic three-dimensional structure of the deflector of the present invention;

in the figure: 1 atom cover, 2 diversion devices, 21 conical shells, 22 motors, 23 fixing rods, 24 helical blades, 3 annular plates, 4 clamping grooves, 5 convex rods, 6 air inlet adjusting devices, 61 worm rings, 62 telescopic cloth bags, 63 connecting rods, 64 worm wheels, 65 first pin shafts, 66 connecting blocks, 67 bearings, 68 second pin shafts, 69 fixing blocks, 610 torsion springs, 611 clamping plates and 7 collecting hoppers.

Detailed Description

The technical solution of the present patent will be further described in detail with reference to the following embodiments.

As shown in fig. 1 to 5, the present invention provides a technical solution: the utility model provides an increase air velocity's laboratory is with atomic absorption cover, including atom cover 1, the inside of atom cover 1 is provided with guiding device 2, the bottom threaded connection of atom cover 1 surface has the collection to fight 7, collect through setting up and fight 7, and collect and fight 7 can collect the liquid or impurity that atom cover 1 inner wall produced, avoid dropping the pollution laboratory bench, collect simultaneously and fight 7 and atom cover threaded connection between 1, and then be convenient for dismantle the clearance and collect impurity or the liquid of fighting 7 insides, the surface of collecting fighting 7 is provided with wind gap adjusting device 6, the surface of collecting fighting 7 is connected with the internal surface fixed connection of annular plate 3, a plurality of draw-in groove 4 has been seted up to one side of annular fill inner wall.

Wind gap adjusting device 6 includes bearing 67, through setting up bearing 67, make bearing 67 can guarantee the smooth rotation work of worm ring 61, bearing 67 fixed connection is at the inner wall of annular plate 3, the internal surface of bearing 67 rotates and is connected with worm ring 61, worm ring 61 meshes with a plurality of worm wheel 64 respectively, through setting up worm ring 61 and worm wheel 64, make worm ring 61 can control worm wheel 64 rotatory, and then can reach the transmission of power, be convenient for control connection pole 63 expand or receive, worm wheel 64 is articulated with two connecting blocks 66 through first round pin axle 65, through setting up first round pin axle 65, make first round pin axle 65 can provide the turning point for worm wheel 64, guarantee worm wheel 64's smooth rotation, two connecting blocks 66 fixed connection are at the surface of collecting fill 7.

Specifically, as shown in fig. 1, the outer fixed surface of the collecting hopper 7 is connected with the protruding rod 5, and through the protruding rod 5, the experimenter can control the rotating operation of the collecting hopper 7 conveniently through the protruding rod 5, and the number of the protruding rods 5 is set to be a plurality.

Specifically, as shown in fig. 2 and 4, the bottom of the collecting hopper 7 is fixedly connected to the upper side of the retractable cloth bag 62, the retractable cloth bag 62 is provided, and the retractable cloth bag 62 has a retractable property, so as to facilitate adjustment work, the outer surface of the retractable cloth bag 62 is fixedly connected to a plurality of connecting rods 63, the connecting rods 63 are provided to support the retractable cloth bag 62, the connecting rods 63 are respectively fixedly connected to one sides of a plurality of worm gears 64, the outer surface of the worm ring 61 is fixedly connected to two fixing blocks 69, the two fixing blocks 69 are hinged to the clamping plate 611 through a second pin 68, the second pin 68 is provided to provide a moving point for the clamping plate 611, so that the clamping plate 611 can move smoothly, the torsion springs 610 are fixedly connected to both sides of the clamping plate 611, and the torsion of the torsion springs 610 can drive the clamping plate 611 to move upwards through the torsion springs 610, the clamping plate 611 is clamped into the clamping groove 4, so that the position of the worm ring 61 can be locked, the two torsion springs 610 are fixedly connected to the opposite surfaces of the two fixing blocks 69 respectively, and one end of the clamping plate 611 is arranged in the clamping groove 4.

Specifically, as shown in fig. 5, the air guiding device 2 includes a conical shell 21, and the conical shell 21 is of a conical design, so as to reduce wind resistance, and at the same time, the conical shell 21 can play a role in fixing the motor 22, a fixing rod 23 is fixedly connected to an outer surface of the conical shell 21, and by providing the fixing rod 23, the fixing rod 23 can play a role in fixing the conical shell 21, the fixing rod 23 is fixedly connected to an inner wall of the atomic cover 1, the motor 22 is fixedly connected to an inner portion of the conical shell 21, a spiral blade 24 is fixedly connected to an output shaft of the motor 22, by providing the motor 22 and the spiral blade 24, and under the rotation motion of the motor 22 by controlling the spiral blade 24, the spiral blade 24 moves the spiral blade 24, and the spiral design of the spiral blade 24 can form a hyperboloid in an axial direction for guiding air flow, and can accelerate a flow velocity of the air flow in a radial direction, and further, the wind pressure is increased through the axial and radial double effects, and the quick exhaust effect is achieved.

The working principle of the utility model is as follows:

s1, when the retractable cloth bag is used, the clamping plate 611 is operated downwards, the clamping plate 611 drives the torsion spring 610 to twist, the clamping plate 611 is separated from the clamping groove 4, the clamping plate 611 is rotated at the moment, the clamping plate 611 drives the worm ring 61 to rotate, the worm ring 61 drives the worm wheel 64 to rotate, the worm wheel 64 drives the connecting rod 63 to move, the connecting rod 63 is folded, and the connecting rod 63 drives the retractable cloth bag 62 to shrink;

s2, loosening the clamping plate 611, and driving the clamping plate 611 to be clamped into the clamping groove 4 by the torsion of the torsion spring 610 to fix the worm ring 61;

and S3, finally, controlling the motor 22 to operate, so that the motor 22 drives the helical blade 24 to rotate, and the helical blade 24 accelerates the flow speed of the airflow, thereby accelerating the exhaust speed.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. An atomic absorption hood for a laboratory for increasing the speed of air flow, comprising an atomic hood (1), characterized in that: a flow guide device (2) is arranged inside the atom cover (1), the bottom of the outer surface of the atom cover (1) is in threaded connection with a collecting hopper (7), an air port adjusting device (6) is arranged on the outer surface of the collecting hopper (7), the outer surface of the collecting hopper (7) is fixedly connected with the inner surface of the annular plate (3), and one side of the inner wall of the annular hopper is provided with a plurality of clamping grooves (4);

the tuyere adjusting device (6) comprises a bearing (67), the bearing (67) is fixedly connected to the inner wall of the annular plate (3), the inner surface of the bearing (67) is rotatably connected with worm rings (61), the worm rings (61) are respectively meshed with a plurality of worm gears (64), the worm gears (64) are hinged to two connecting blocks (66) through first pin shafts (65), and the two connecting blocks (66) are fixedly connected to the outer surface of the collecting hopper (7).

2. The atomic absorption hood for laboratory with increased air flow speed according to claim 1, wherein: the outer surface of the collecting hopper (7) is fixedly connected with protruding rods (5), and the number of the protruding rods (5) is set to be a plurality.

3. The laboratory atomic absorption hood for increasing air flow velocity according to claim 1, wherein: the bottom of the collecting hopper (7) is fixedly connected with the upper side of the telescopic cloth bag (62), the outer surface of the telescopic cloth bag (62) is fixedly connected with a plurality of connecting rods (63), and the connecting rods (63) are fixedly connected with one sides of a plurality of worm gears (64) respectively.

4. The laboratory atomic absorption hood for increasing air flow velocity according to claim 1, wherein: the outer surface of worm circle (61) is fixedly connected with two fixed blocks (69), two fixed block (69) are articulated with cardboard (611) through second round pin axle (68), the equal fixedly connected with torsional spring (610) in both sides of cardboard (611), two torsional spring (610) fixed connection is respectively in the opposite face of two fixed blocks (69), the one end setting of cardboard (611) is in draw-in groove (4).

5. The atomic absorption hood for laboratory with increased air flow speed according to claim 1, wherein: the flow guide device (2) comprises a conical shell (21), wherein a fixing rod (23) is fixedly connected to the outer surface of the conical shell (21), and the fixing rod (23) is fixedly connected to the inner wall of the atom cover (1).

6. The atomic absorption hood for laboratory use for increasing air flow speed according to claim 5, wherein: the interior fixedly connected with motor (22) of conical shell (21), the output shaft fixedly connected with helical blade (24) of motor (22).