CN212285241U

CN212285241U - Automatic door opening and closing structure of ventilation cabinet

Info

Publication number: CN212285241U
Application number: CN202020923997.9U
Authority: CN
Inventors: 叶华丰; 何仁华
Original assignee: Shenzhen Muren Intelligent Laboratory Technology Co ltd
Current assignee: Shenzhen Muren Intelligent Laboratory Technology Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-01-05
Anticipated expiration: 2030-05-27

Abstract

The utility model discloses a fume chamber automatic switch door structure, including the fume chamber body, first rectangular hole has been seted up to one side of fume chamber body, be equipped with the cabinet door in the first rectangular hole, first recess has been seted up to the top inner wall of first rectangular hole, the top of cabinet door extends to in the first recess, a plurality of first through-holes have been seted up to the top inner wall of first recess, movable cavity has been seted up in the lateral wall of fume chamber body, be equipped with the pinion rack in the movable cavity, a plurality of second through-holes have been seted up to movable cavity's top inner wall, the top of fume chamber body is equipped with a plurality of connection ropes, first through-hole and second through-hole are run through respectively at the both ends of connecting rope, just the both ends of connecting rope respectively with cabinet door and pinion rack fixed connection. A fume chamber automatic switch door structure, do not need staff's manual switch cabinet door, convenient actual operation has improved the convenience.

Description

Automatic door opening and closing structure of ventilation cabinet

Technical Field

The utility model relates to a fume chamber technical field, in particular to fume chamber automatic switch door structure.

Background

The ventilation cabinet needs to discharge large air volume outdoors when in use, for example, the traditional control type ventilation cabinet or biological safety cabinet with 1800mm has the exhaust volume of 2200m3/h, the number of the ventilation cabinets generally designed for chemical (synthetic) laboratories is about 10-20, the exhaust volume of the ventilation cabinet reaches 22000m3/h, in order to solve the temperature and humidity environment requirements of the laboratories, the laboratories need to arrange an air conditioning and air supply system with full fresh air for the laboratories, and the corresponding air volume of the fresh air system is about 20000m3/h, the huge energy consumption makes the operation cost of the laboratories rise straightly, because the operation time of an operator in front of the ventilation cabinet is about 3 hours a day when the ventilation cabinet is in use (the ventilation cabinet does not need to operate and add medicine when the laboratory is carried out, and is calculated according to 8 hours of the work of the ventilation cabinet a day), at this time, the ventilation cabinet door can be closed to the lowest, the exhaust volume of the fume hood for maintaining the door-closed state only needs 300m3/h, and the door of the fume hood needs to be opened and closed manually and repeatedly, so that the actual operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide an automatic door opening and closing structure for a ventilation cabinet, which can effectively solve the problems of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an automatic door opening and closing structure of a fume hood comprises a fume hood body, wherein a first rectangular hole is formed in one side of the fume hood body, a cabinet door is arranged in the first rectangular hole, a first groove is formed in the inner wall of the top of the first rectangular hole, the top end of the cabinet door extends into the first groove, a plurality of first through holes are formed in the inner wall of the top of the first groove, a movable cavity is formed in the side wall of the fume hood body, a toothed plate is arranged in the movable cavity, a plurality of second through holes are formed in the inner wall of the top of the movable cavity, a plurality of connecting ropes are arranged above the fume hood body, two ends of the connecting ropes respectively penetrate through the first through holes and the second through holes, two ends of the connecting ropes are respectively and fixedly connected with the cabinet door and the toothed plate, a driving assembly is arranged on one side of the toothed plate, and a supporting assembly matched with the connecting ropes is arranged at, and a control assembly is arranged on the cabinet door.

Preferably, the supporting component comprises two first rotating shafts arranged above the fume hood body, first fixing plates are arranged at two ends of each first rotating shaft respectively, the first fixing plates are fixedly connected with the top of the fume hood body, the first fixing plates are connected with the first rotating shafts through bearings, and the first rotating shafts are located between the connecting ropes and the fume hood body.

Preferably, the drive assembly includes the second rectangular hole of seting up in activity cavity one side inner wall, one side outer wall fixed connection backup pad of fume chamber body, one side of backup pad is equipped with the motor, the output of motor is equipped with the second pivot, the one end fixedly connected with gear of second pivot, one side of gear extends to in the second rectangular hole, just the gear cooperatees with the pinion rack.

Preferably, the control assembly is including setting up in the second fixed plate of fume chamber body one side inner wall, the inner wall fixed connection of second fixed plate and fume chamber body, the bottom of second fixed plate is equipped with first switch, the below of first switch is equipped with presses the clamp plate, press one side of clamp plate and one side fixed connection of cabinet door, the second recess has been seted up to the bottom inner wall of first rectangular hole, the bottom inner wall fixedly connected with second switch of second recess, be equipped with the limiting plate in the second recess, the top of limiting plate and the bottom fixed connection of cabinet door, the bottom of limiting plate contacts with the top of second switch.

Preferably, the bottom of the fume hood body is fixedly connected with a plurality of pulleys.

Compared with the prior art, the utility model discloses following beneficial effect has: through the cooperation that sets up fume chamber body, first rectangular hole, cabinet door, first recess, first through-hole, activity cavity, pinion rack, second through-hole, connection rope, drive assembly, supporting component and control assembly, do not need staff's manual switch cabinet door, convenient actual operation has improved the convenience.

Drawings

Fig. 1 is a schematic view of the overall structure of an automatic door opening and closing structure of a fume chamber of the present invention;

fig. 2 is a schematic structural view of a supporting component of an automatic door opening and closing structure of a fume chamber of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

fig. 4 is the utility model relates to a drive assembly schematic diagram of fume chamber automatic switch door structure.

In the figure: 1. a fume hood body; 2. a first rectangular hole; 3. a cabinet door; 4. a first groove; 5. a first through hole; 6. a movable chamber; 7. a toothed plate; 8. a second through hole; 9. connecting ropes; 10. a first fixing plate; 11. a first rotating shaft; 12. a bearing; 13. a second rectangular hole; 14. a gear; 15. a support plate; 16. a motor; 17. a second rotating shaft; 18. a second fixing plate; 19. a first switch; 20. a second groove; 21. a limiting plate; 22. a second switch; 23. and pressing the plate.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 to which the reference is made 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.

As shown in fig. 1-4, an automatic door opening and closing structure of a fume hood comprises a fume hood body 1, a first rectangular hole 2 is formed in one side of the fume hood body 1, a hood door 3 is arranged in the first rectangular hole 2, a first groove 4 is formed in the inner wall of the top of the first rectangular hole 2, the top end of the hood door 3 extends into the first groove 4, a plurality of first through holes 5 are formed in the inner wall of the top of the first groove 4, a movable chamber 6 is formed in the side wall of the fume hood body 1, a toothed plate 7 is arranged in the movable chamber 6, a plurality of second through holes 8 are formed in the inner wall of the top of the movable chamber 6, a plurality of connecting ropes 9 are arranged above the fume hood body 1, two ends of the connecting ropes 9 respectively penetrate through the first through holes 5 and the second through holes 8, two ends of the connecting ropes 9 are respectively fixedly connected with the hood door 3 and the toothed plate 7, a driving assembly is arranged on one side of the toothed plate 7, a, the cabinet door 3 is provided with a control assembly;

the supporting assembly comprises two first rotating shafts 11 arranged above the fume hood body 1, two ends of each first rotating shaft 11 are respectively provided with a first fixing plate 10, each first fixing plate 10 is fixedly connected with the top of the fume hood body 1, each first fixing plate 10 is connected with each first rotating shaft 11 through a bearing 12, and each first rotating shaft 11 is located between the corresponding connecting rope 9 and the corresponding fume hood body 1; the driving assembly comprises a second rectangular hole 13 formed in the inner wall of one side of the movable chamber 6, the outer wall of one side of the fume hood body 1 is fixedly connected with a supporting plate 15, one side of the supporting plate 15 is provided with a motor 16, the output end of the motor 16 is provided with a second rotating shaft 17, one end of the second rotating shaft 17 is fixedly connected with a gear 14, one side of the gear 14 extends into the second rectangular hole 13, and the gear 14 is matched with the toothed plate 7; the control assembly comprises a second fixing plate 18 arranged on the inner wall of one side of the fume hood body 1, the second fixing plate 18 is fixedly connected with the inner wall of the fume hood body 1, a first switch 19 is arranged at the bottom of the second fixing plate 18, a pressing plate 23 is arranged below the first switch 19, one side of the pressing plate 23 is fixedly connected with one side of the cabinet door 3, a second groove 20 is formed in the inner wall of the bottom of the first rectangular hole 2, a second switch 22 is fixedly connected with the inner wall of the bottom of the second groove 20, a limiting plate 21 is arranged in the second groove 20, the top of the limiting plate 21 is fixedly connected with the bottom of the cabinet door 3, and the bottom of the limiting plate 21 is contacted with the top of the second switch; the bottom fixedly connected with of fume chamber body 1 has a plurality of pulleys, is convenient for drive fume chamber body 1 to remove.

It should be noted that, when the present invention is used, the control motor 16 is started, and then the second rotating shaft 17 controls the gear 14 to rotate, the toothed plate 7 moves downwards through the cooperation of the gear 14 and the toothed plate 7, and then the connecting rope 9 pulls the cabinet door 3 to move upwards, during the moving process of the connecting rope 9, the first rotating shaft 11 rotates relative to the first fixing plate 10, the friction between the connecting rope 9 and the ventilation cabinet body 1 is reduced through the first rotating shaft 11, so that the connecting rope 9 moves conveniently, along with the upward movement of the cabinet door 3, the pressing plate 23 moves upwards, when the pressing plate 23 contacts with the first switch 19, the motor 16 is closed through the first switch 19, and then the opening of the cabinet door 3 is completed, when the cabinet door 3 needs to be closed, similarly, the motor 16 drives the second rotating shaft 17 to rotate backwards, and then the toothed plate 7 moves upwards, the cabinet door 3 moves downwards due to its own gravity, and when the limiting plate 21 slides into the second groove 20, limiting plate 21 and the contact of second switch 22, and then second switch 22 control motor 16 stall, accomplish the closure of cabinet door 3, do not need staff's manual switch cabinet door 3, make things convenient for actual operation, improved the convenience.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fume chamber automatic switch door structure which characterized in that: comprises a fume hood body (1), wherein a first rectangular hole (2) is formed in one side of the fume hood body (1), a cabinet door (3) is arranged in the first rectangular hole (2), a first groove (4) is formed in the inner wall of the top of the first rectangular hole (2), the top end of the cabinet door (3) extends into the first groove (4), a plurality of first through holes (5) are formed in the inner wall of the top of the first groove (4), a movable cavity (6) is formed in the side wall of the fume hood body (1), a toothed plate (7) is arranged in the movable cavity (6), a plurality of second through holes (8) are formed in the inner wall of the top of the movable cavity (6), a plurality of connecting ropes (9) are arranged above the fume hood body (1), the two ends of the connecting ropes (9) respectively penetrate through the first through holes (5) and the second through holes (8), and the two ends of the connecting ropes (9) are respectively and fixedly connected with the cabinet door (3) and the toothed plate (7), one side of pinion rack (7) is equipped with drive assembly, the top of fume chamber body (1) is equipped with and connects rope (9) matched with supporting component, be equipped with control assembly on cabinet door (3).

2. The automatic door opening and closing structure of a fume hood according to claim 1, wherein: the supporting component comprises two first rotating shafts (11) arranged above the fume hood body (1), wherein first fixing plates (10) are arranged at two ends of each first rotating shaft (11) respectively, the first fixing plates (10) are fixedly connected with the top of the fume hood body (1), the first fixing plates (10) are connected with the first rotating shafts (11) through bearings (12), and the first rotating shafts (11) are located between the connecting ropes (9) and the fume hood body (1).

3. The automatic door opening and closing structure of a fume hood according to claim 1, wherein: drive assembly is including offering second rectangular hole (13) in movable chamber (6) one side inner wall, one side outer wall fixed connection backup pad (15) of fume chamber body (1), one side of backup pad (15) is equipped with motor (16), the output of motor (16) is equipped with second pivot (17), the one end fixedly connected with gear (14) of second pivot (17), one side of gear (14) extends to in second rectangular hole (13), just gear (14) cooperate with pinion rack (7).

4. The automatic door opening and closing structure of a fume hood according to claim 1, wherein: the control assembly is including setting up in second fixed plate (18) of fume chamber body (1) one side inner wall, the inner wall fixed connection of second fixed plate (18) and fume chamber body (1), the bottom of second fixed plate (18) is equipped with first switch (19), the below of first switch (19) is equipped with presses clamp plate (23), one side of pressing clamp plate (23) and one side fixed connection of cabinet door (3), second recess (20) have been seted up to the bottom inner wall of first rectangular hole (2), the bottom inner wall fixedly connected with second switch (22) of second recess (20), be equipped with limiting plate (21) in second recess (20), the top of limiting plate (21) and the bottom fixed connection of cabinet door (3), the bottom of limiting plate (21) contacts with the top of second switch (22).

5. The automatic door opening and closing structure of a fume hood according to claim 1, wherein: the bottom of fume chamber body (1) fixedly connected with a plurality of pulleys.