CN218532236U - Air supplementing structure of exhaust cabinet - Google Patents

Abstract

The utility model discloses an exhaust cabinet mends wind structure, including being fixed in the L type mounting panel at visual window rear in the exhaust cabinet and being located, both sides all rotate about the vertical lateral wall of L type mounting panel and install two hollow shafts, two the one end of hollow shaft all is fixed with end cover, the other end and all is connected with rotary joint, two rotary joint is connected with the both ends of tee bend pipeline, the other end of tee bend pipeline passes the lateral wall of exhaust cabinet and links to each other with air supply equipment, still be equipped with on the L type mounting panel and be used for driving two hollow shaft antiport actuating mechanism, two relatively open on the lateral wall of hollow shaft has two air-out passageways, starts air supply equipment work, through tee bend pipeline and two rotary joint, can carry the wind to the inside of two hollow shafts, then via two air-out passageways discharge, form the partition wind wall to avoid the interior gaseous excessive of exhaust cabinet, guarantee operator's safety constantly.

Description

Air supplementing structure of exhaust cabinet

Technical Field

The utility model relates to a laboratory exhaust equipment technical field, concrete field is an exhaust cabinet mends wind structure.

Background

Laboratory ventilation is an integral part of laboratory design. In order for laboratory workers not to inhale or swallow some toxic, potentially pathogenic or non-toxic chemicals and organisms, there should be good ventilation in the laboratory.

The exhaust cabinet is the most commonly used local exhaust equipment in the laboratory, and generally speaking, exhaust device is equipped with at the exhaust cabinet top, can be with poisonous, harmful gas exhaust outdoor, and the side towards the operator in the exhaust cabinet sets up to the visual window that slides from top to bottom, and during the use, with visual window pull-down to leave certain space with the workstation in the exhaust cabinet, enough operators operate on the workstation.

However, at the moment when the operator opens the visual window, the outside air enters the exhaust cabinet, which disturbs the air in the exhaust cabinet, and causes the disordered airflow inside the exhaust cabinet to overflow, thus causing injury to the operator. Therefore, an air supplement structure of the exhaust cabinet is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an exhaust cabinet mends wind structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an exhaust cabinet mends wind structure, is including being fixed in the L type mounting panel at visual window rear in the exhaust cabinet and being located, both sides all rotate about the vertical lateral wall of L type mounting panel and install two hollow shafts, two the one end of hollow shaft all is fixed with end cover, two rotary joint, two are all connected with to the other end of hollow shaft rotary joint is connected with the both ends of tee bend pipeline, the other end of tee bend pipeline passes the lateral wall of exhaust cabinet and links to each other with air supply equipment, still be equipped with on the L type mounting panel and be used for driving two hollow shaft antiport's actuating mechanism, two relatively open on the lateral wall of hollow shaft has two air-out passageways, two the air-out passageway all is located between L type mounting panel and the tee bend pipeline.

Preferably, the driving mechanism comprises a double-shaft motor which is installed on the vertical side wall of the L-shaped mounting plate and located between the two hollow shafts, two rotating ends of the double-shaft motor are connected with one end of a rotating shaft through a coupler, driving bevel gears are installed at the other ends of the two rotating shafts, driven bevel gears are connected to the two driving bevel gears in an engaged mode between teeth, and the two driven bevel gears are installed on the two hollow shafts respectively.

Preferably, the vertical lateral wall of L type mounting panel just is located double-shaft motor's upper and lower both sides and all installs the pedestal bearing, two the pivot is installed respectively in the inside of two pedestal bearings.

Preferably, the bearing frame is installed to both sides about the vertical lateral wall of L type mounting panel, both sides the bearing is all installed to the inside of bearing frame, two the pivot is installed respectively in the inside of both sides bearing.

Preferably, bearing seat sealing covers are mounted on the left end face and the right end face of the bearing seat on the two sides.

Preferably, evenly open on the horizontal lateral wall of L type mounting panel has a plurality of mounting holes, the bolt fastening of L type mounting panel through passing the mounting hole is in the exhaust cabinet.

Preferably, both of the rotary joints are bending type rotary joints.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides an exhaust cabinet air supplement structure, the utility model starts the air supply equipment to work, can convey air to the inside of two hollow shafts through a three-way pipeline and two rotary joints, and then is discharged through two air outlet channels to form an isolation air wall, thereby avoiding the gas in the exhaust cabinet from overflowing and constantly ensuring the safety of operators; the utility model discloses under actuating mechanism's drive, individual hollow shaft, antiport, and then drive two air-out passageways, deflect, finally can adjust the inclination of keeping apart the wind wall, improve and keep apart the effect.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic view of the structure of the present invention.

In the figure: 1. an L-shaped mounting plate; 2. a hollow shaft; 3. sealing the end cap; 4. a rotary joint; 5. a three-way pipeline; 6. an air outlet channel; 7. a dual-axis motor; 8. a rotating shaft; 9. a drive bevel gear; 10. a driven bevel gear; 11. a mounted bearing; 12. a bearing seat; 13. a bearing; 14. and (7) installing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an exhaust cabinet mends wind structure, is including being fixed in the exhaust cabinet and being located the L type mounting panel 1 at visual window rear, both sides all rotate about the vertical lateral wall of L type mounting panel 1 and install two hollow shafts 2, two hollow shafts 2 can rotate for L type mounting panel 1, two one end of hollow shaft 2 all is fixed with sealed end cover 3, two the other end of hollow shaft 2 all is connected with rotary joint 4, two rotary joint 4 is connected with the both ends of tee bend pipeline 5, the other end of tee bend pipeline 5 passes the lateral wall of exhaust cabinet and links to each other with the air feed equipment, still be equipped with the actuating mechanism that is used for driving two hollow shaft 2 antiport on L type mounting panel 1, two it has two air-out passageways 6 to run from opposite directions on the lateral wall of hollow shaft 2, the air-out pipe is rectangular shape (for example waist type hole), after strong wind passes through, forms the isolation wind wall, starts the work of air feed equipment, through tee bend pipeline 5 and two rotary joint 4, can carry the wind to the inside of two hollow shafts 2, then discharges via two air-out passageways 6, forms the isolation wind wall to avoid the gas in the exhaust cabinet, constantly overflow, the operator is located the tee bend pipeline 5 and the hollow shaft 2 that the air-out drives, and the three-way passageway is finally the isolation is rotated, and the isolation is carried out, and the inclined angle can be adjusted.

Particularly, actuating mechanism is including installing on the vertical lateral wall of L type mounting panel 1 and being located the double-shaft motor 7 between two hollow shafts 2, two rotation ends of double-shaft motor 7 all have the one end of pivot 8, two through the coupling joint the drive bevel gear 9, two are all installed to the other end of pivot 8 the equal intertooth meshing of drive bevel gear 9 is connected with driven bevel gear 10, two driven bevel gear 10 is installed respectively on two hollow shafts 2, starts double-shaft motor 7 work, can drive two pivot 8 through two couplings and rotate, and then drives drive bevel gear 9 and rotate, through the intertooth meshing effect, can drive two driven bevel gear 10 and rotate, and then drive two hollow shafts 2 antiport.

Specifically, on the vertical lateral wall of L type mounting panel 1 and the upper and lower both sides that are located double-shaft motor 7 all install and take a pedestal bearing 11, two pivot 8 is installed respectively in the inside of two take pedestal bearings 11, two take pedestal bearing 11 to be used for rolling two pivots 8 of support respectively.

Specifically, bearing blocks 12 are installed on the upper side and the lower side of the vertical side wall of the L-shaped mounting plate 1, bearings 13 are installed inside the bearing blocks 12 on the two sides, the two rotating shafts 8 are installed inside the bearings 13 on the two sides respectively, and the bearings 13 are used for supporting the hollow shaft 2 in a rolling mode.

Specifically, bearing seat sealing covers are mounted on both left and right end faces of the bearing seats 12 on both sides.

Specifically, evenly open on the horizontal lateral wall of L type mounting panel 1 has a plurality of mounting holes 14, L type mounting panel 1 is fixed in the exhaust cabinet through the bolt that passes mounting hole 14.

Specifically, both the rotary joints 4 are bending-type rotary joints.

The working principle is as follows: the utility model discloses when using, the external air feed equipment of tee bend pipeline 5, start the air feed equipment work, through tee bend pipeline 5 and two rotary joint 4, can carry the inside to two hollow shafts 2 with wind, then discharge via two air-out passageways 6, form and keep apart the wind wall, thereby avoid the gas excessive in the cabinet of airing exhaust, guarantee operator safety and danger constantly, start the work of biax motor, can drive two pivot 8 rotations through two shaft couplings, and then drive initiative bevel gear 9 and rotate, through the intertooth meshing effect, can drive two driven bevel gear 10 rotations, and then drive two hollow shaft 2 antiport and can drive two hollow shaft 2 antiport, and then drive two air-out passageways 6 deflections, finally can adjust the inclination of keeping apart the wind wall, improve and keep apart the effect.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an exhaust cabinet mends wind structure, is including being fixed in L type mounting panel (1) at visual window rear in the exhaust cabinet and being located, its characterized in that: the utility model discloses a three-way air exhaust cabinet, including L type mounting panel (1), two vertical lateral wall of L type mounting panel (1) about both sides all rotate and install two hollow shafts (2), two the one end of hollow shaft (2) all is fixed with end cover (3), two rotary joint (4) are all connected with rotary joint (4), two rotary joint (4) are connected with the both ends of three-way pipe (5), the other end of three-way pipe (5) passes the lateral wall of cabinet of airing exhaust and links to each other with the air supply equipment, still be equipped with on L type mounting panel (1) and be used for driving two hollow shaft (2) antiport actuating mechanism, two relative division has two air-out passageway (6), two on the lateral wall of hollow shaft (2) air-out passageway (6) all are located between L type mounting panel (1) and three-way pipe (5).

2. An exhaust cabinet air supplement structure according to claim 1, characterized in that: actuating mechanism is including installing in the vertical lateral wall of L type mounting panel (1) and being located two double-shaft motor (7) between hollow shaft (2), two rotation ends of double-shaft motor (7) all have the one end of pivot (8), two through the coupling joint drive bevel gear (9), two are all installed to the other end of pivot (8) drive bevel gear (9) equal intertooth meshing of tooth is connected with driven bevel gear (10), two driven bevel gear (10) are installed respectively on two hollow shaft (2).

3. An exhaust cabinet air supplement structure according to claim 2, characterized in that: the upper and lower both sides that just are located biax motor (7) on the vertical lateral wall of L type mounting panel (1) all install rolling bearing (11), two pivot (8) are installed respectively in the inside of two rolling bearing (11).

4. An exhaust cabinet air supplement structure according to claim 2, characterized in that: bearing frame (12) are all installed to both sides about the vertical lateral wall of L type mounting panel (1), both sides bearing (13), two are all installed to the inside of bearing frame (12) pivot (8) are installed respectively in the inside of both sides bearing (13).

5. An exhaust cabinet air supplement structure according to claim 4, characterized in that: bearing seat sealing covers are arranged on the left end face and the right end face of the bearing seat (12) on the two sides.

6. An exhaust cabinet air supplement structure according to claim 1, characterized in that: evenly open on the horizontal lateral wall of L type mounting panel (1) has a plurality of mounting holes (14), L type mounting panel (1) is fixed in the cabinet of airing exhaust through the bolt that passes mounting hole (14).

7. An exhaust cabinet air supplement structure according to claim 1, characterized in that: and the two rotary joints (4) are both bending type rotary joints.

Images