CN214441705U - Low-noise ventilation device for laboratory - Google Patents

Abstract

The utility model discloses a low noise ventilation unit is used in laboratory, including the ventilation pipe, connecting pipe and equipment pipe, the quantity of ventilation pipe is a plurality of, a plurality of ventilation pipe is fixed connection in proper order from a left side to the right side, the bottom fixedly connected with connecting pipe of ventilation pipe, the bottom of connecting pipe is provided with the ring flange, the connecting pipe passes through ring flange fixed mounting and has equipment pipe, the inside fixed mounting of equipment pipe has the exhaust fan, the top and the bottom of exhaust fan all are provided with the mechanism of making an uproar of falling, the lower part of equipment outside of tubes surface is provided with the thread groove, the surface threaded connection of thread groove has the connecting piece, the bottom fixedly connected with bellows of connecting piece. The utility model discloses a setting of mechanism of making an uproar falls, fall the mechanism of making an uproar and can carry out the centre gripping to the exhaust fan, when the exhaust fan starts, the condition of vibrations can appear, and at this moment, the spring can effectually play the energy dissipation effect for vibrations to reduce the noise that vibrations collision caused when the exhaust fan moves, thereby can effectually reach the purpose of making an uproar.

Description

Low-noise ventilation device for laboratory

Technical Field

The utility model relates to a ventilation technology field specifically is a low noise ventilation unit is used in laboratory.

Background

When the laboratory carries out chemistry experiment, need heat chemical reagent, burning etc, let the abundant accurate completion of chemical reaction, but at chemical reaction's in-process, can produce some gas that do not need, moreover, some chemical reagent have volatility, can volatilize in the laboratory when using, consequently, long-time multiple gas that gathers in the laboratory, can exert an influence to laboratory personnel's health, can exert an influence to some chemical experiments that require to be strict, consequently, the laboratory need carry out necessary ventilation treatment, install necessary ventilation unit, under the condition that does not influence chemical experiment and laboratory personnel, ventilate the laboratory.

Current ventilation unit is when using, and the noise is great, influences personnel's experiment, simultaneously, when sending the gas that the thorn is harmful to personnel during the experiment, the effect of airing exhaust is relatively poor, consequently, we have proposed a laboratory is with low noise ventilation unit.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laboratory is with low noise ventilation unit in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a low noise ventilation unit is used in laboratory, includes ventilation pipe, connecting pipe and equipment pipe, the quantity of ventilation pipe is a plurality of, a plurality of the ventilation pipe is from a left side to the right side fixed connection in proper order, the bottom fixedly connected with connecting pipe of ventilation pipe, the bottom of connecting pipe is provided with the ring flange, the connecting pipe passes through ring flange fixed mounting and has the equipment pipe, the inside fixed mounting of equipment pipe has the exhaust fan, the top and the bottom of exhaust fan all are provided with the mechanism of making an uproar of falling, the lower part of equipment outside of tubes surface is provided with the thread groove, the surface threaded connection of thread groove has the connecting piece, the bottom fixedly connected with bellows of connecting piece, the bottom fixedly connected with fan housing of bellows.

Preferably, the noise reduction mechanism comprises an installation ring plate, a connecting block, an installation bolt, a fixing seat and a spring, the four corners of the upper surface and the lower surface of the exhaust fan are fixedly connected with the fixing seat, the inner wall of the fixing seat is provided with the spring, the top and the bottom of the spring are both provided with a rubber cushion layer, the fixing seat is movably connected with the installation ring plate through the spring, the surface of the installation ring plate is in threaded connection with the installation bolt, the inner wall of the equipment pipe is fixedly connected with the connecting block, and the installation bolt is in threaded connection with the connecting block.

Preferably, one side of the exhaust fan is fixedly provided with a one-way shutter.

Preferably, the inner walls of the fan housing and the connecting piece are both fixedly provided with connecting plates, and a damping rod is fixedly arranged between the connecting plates.

Preferably, the front and the back of the fan housing are both fixedly connected with handles, and the surfaces of the handles are provided with anti-skid grains.

Preferably, the wind cover is made of transparent glass.

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

1. the utility model discloses a setting of mechanism of making an uproar falls, fall the mechanism of making an uproar and can carry out the centre gripping to the exhaust fan, when the exhaust fan starts, the condition of vibrations can appear, and at this moment, the spring can effectually play the energy dissipation effect for vibrations to reduce the noise that vibrations collision caused when the exhaust fan moves, thereby can effectually reach the purpose of making an uproar.

2. The utility model discloses a setting of bellows and fan housing, when the experiment, personnel can install the bellows to the bottom of one of them connecting pipe, simultaneously, pull down the fan housing to the top of experiment department to in the experimentation, during the fan housing can be effectual cigarette or the harmful gas suction bellows that causes in the experimentation, avoid personnel to inhale too much harmful gas and cause uncomfortable sense.

Drawings

Fig. 1 is a schematic three-dimensional structure of the present invention;

fig. 2 is a schematic structural view of the bellows and the fan housing of the present invention;

fig. 3 is a schematic sectional structure view of the bellows and the fan housing according to the present invention;

FIG. 4 is a schematic sectional view of the apparatus tube of the present invention;

fig. 5 is the utility model discloses the split structure schematic diagram of the mechanism of making an uproar falls.

In the figure: 1. a vent pipe; 2. a connecting pipe; 3. an equipment pipe; 4. a flange plate; 5. an exhaust fan; 6. a noise reduction mechanism; 601. installing a ring plate; 602. connecting blocks; 603. installing a bolt; 604. a fixed seat; 605. A spring; 7. a thread groove; 8. a connecting member; 9. a bellows; 10. a fan housing; 11. a unidirectional louver; 12. a connecting plate; 13. a damping lever; 14. and (4) a handle.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or 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.

Referring to fig. 1-5, the present invention provides an embodiment: a low-noise ventilation device for a laboratory comprises ventilation pipes 1, connecting pipes 2 and equipment pipes 3, wherein the number of the ventilation pipes 1 is multiple, the ventilation pipes 1 are sequentially and fixedly connected from left to right, the connecting pipes 2 are fixedly connected to the bottoms of the ventilation pipes 1, flanges 4 are arranged at the bottoms of the connecting pipes 2, the equipment pipes 3 can be conveniently detached and installed by personnel through the flanges 4, the equipment pipes 3 are fixedly installed on the connecting pipes 2 through the flanges 4, exhaust fans 5 are fixedly installed inside the equipment pipes 3, and noise reduction mechanisms 6 are arranged at the tops and the bottoms of the exhaust fans 5;

through the arrangement of the noise reduction mechanism 6, the noise reduction mechanism 6 can clamp the exhaust fan 5, when the exhaust fan 5 is started, vibration can occur, at the moment, the spring 605 can effectively play an energy dissipation role for vibration, so that the noise caused by vibration collision when the exhaust fan 5 operates is reduced, and the purpose of noise reduction can be effectively achieved;

a thread groove 7 is formed in the lower portion of the outer surface of the equipment pipe 3, the connecting piece 8 can be connected with the equipment pipe 3 through the arrangement of the thread groove 7, the connecting piece 8 is connected with the surface of the thread groove 7 in a threaded mode, the bottom of the connecting piece 8 is fixedly connected with a corrugated pipe 9, the height of the fan cover 10 is convenient for a person to pull through the arrangement of the corrugated pipe 9, and the bottom of the corrugated pipe 9 is fixedly connected with the fan cover 10;

through the setting of bellows 9 and fan housing 10, when the experiment, personnel can install bellows 9 to the bottom of one of them connecting pipe 2, simultaneously, pull down fan housing 10 to the top of experiment department to in the experimentation, fan housing 10 can be effectual inhale bellows 9 with the cigarette or the harmful gas that cause in the experimentation, avoid personnel to inhale too much harmful gas and cause uncomfortable sense.

Further, noise reduction mechanism 6 includes installation ring board 601, connecting block 602, construction bolt 603, fixing base 604 and spring 605, the equal fixedly connected with fixing base 604 in four corners of exhaust fan 5 upper surface and lower surface, the inner wall of fixing base 604 is provided with spring 605, spring 605's top and bottom all are provided with the rubber cushion layer, fixing base 604 has installation ring board 601 through spring 605 swing joint, the surperficial threaded connection of installation ring board 601 has construction bolt 603, the inner wall fixedly connected with connecting block 602 of equipment pipe 3, construction bolt 603 and connecting block 602 threaded connection, setting through connecting block 602 and construction bolt 603, the people of being convenient for dismantle exhaust fan 5 and installation ring board 601, thereby the personnel of being convenient for clear up the maintenance.

Further, one side fixed mounting of exhaust fan 5 has one-way shutter 11, and through the setting of one-way shutter 11, when exhaust fan 5 made wind-force and blown one-way shutter 11, one-way shutter 11 could open to can avoid the air in ventilation pipe 1 to get into in the equipment pipe 3 once more.

Further, the inner walls of the fan housing 10 and the connecting member 8 are both fixedly provided with connecting plates 12, damping rods 13 are fixedly arranged between the connecting plates 12, and through the arrangement of the damping rods 13, after a person pulls the fan housing 10, the damping rods 13 can play a role in positioning the corrugated pipe 9.

Further, both the front and the back of the fan housing 10 are fixedly connected with handles 14, the surfaces of the handles 14 are provided with anti-slip patterns, and the arrangement of the handles 14 facilitates a person to pull the fan housing 10.

Further, the material of fan housing 10 is the transparent glass material, and through the setting of transparent glass material, when the experiment, personnel's accessible fan housing 10 observes the experimental condition of experiment department to avoid fan housing 10 to influence personnel's sight.

The working principle is as follows: when using, the personnel can open corresponding exhaust fan 5 according to the demand and exhaust to corresponding place, when the exhaust, can effectually play the effect of shock attenuation energy dissipation for it through falling the mechanism of making an uproar 6 to make it reach the purpose of making an uproar, when the experiment, personnel's accessible installation is dragged bellows 9 and is made fan housing 10 remove to the top of experiment department, then starts exhaust fan 5, makes fan housing 10 can be with in the bellows 9 is inhaled to the cigarette and the gas of making during the experiment.

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 (6)

1. The utility model provides a low noise ventilation unit is used in laboratory, includes ventilation pipe (1), connecting pipe (2) and equipment pipe (3), its characterized in that: the quantity of ventilation pipe (1) is a plurality of, a plurality of ventilation pipe (1) is from a left side to the right side fixed connection in proper order, the bottom fixedly connected with connecting pipe (2) of ventilation pipe (1), the bottom of connecting pipe (2) is provided with ring flange (4), connecting pipe (2) have equipment pipe (3) through ring flange (4) fixed mounting, the inside fixed mounting of equipment pipe (3) has exhaust fan (5), the top and the bottom of exhaust fan (5) all are provided with and fall the mechanism (6) of making an uproar, the lower part of equipment pipe (3) surface is provided with thread groove (7), the surperficial threaded connection of thread groove (7) has connecting piece (8), the bottom fixedly connected with bellows (9) of connecting piece (8), the bottom fixedly connected with fan housing (10) of bellows (9).

2. A low noise ventilation unit for laboratory use according to claim 1, wherein: noise reduction mechanism (6) are including installation crown plate (601), connecting block (602), construction bolt (603), fixing base (604) and spring (605), the equal fixedly connected with fixing base (604) in four corners of exhaust fan (5) upper surface and lower surface, the inner wall of fixing base (604) is provided with spring (605), the top and the bottom of spring (605) all are provided with the rubber cushion, fixing base (604) have construction crown plate (601) through spring (605) swing joint, the surperficial threaded connection of construction crown plate (601) has construction bolt (603), the inner wall fixedly connected with connecting block (602) of equipment pipe (3), construction bolt (603) and connecting block (602) threaded connection.

3. A low noise ventilation unit for laboratory use according to claim 1, wherein: one side of the exhaust fan (5) is fixedly provided with a one-way shutter (11).

4. A low noise ventilation unit for laboratory use according to claim 1, wherein: the inner walls of the fan housing (10) and the connecting piece (8) are fixedly provided with connecting plates (12), and damping rods (13) are fixedly arranged between the connecting plates (12).

5. A low noise ventilation unit for laboratory use according to claim 1, wherein: the front and the back of the fan housing (10) are both fixedly connected with handles (14), and the surfaces of the handles (14) are provided with anti-skid grains.

6. A low noise ventilation unit for laboratory use according to claim 1, wherein: the fan cover (10) is made of transparent glass.

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