CN218383339U

CN218383339U - Laboratory fume chamber foreign matter detection device

Info

Publication number: CN218383339U
Application number: CN202222541380.2U
Authority: CN
Inventors: 杨占辉
Original assignee: Emerson Bell Dalian Laboratory Systems Engineering Co ltd
Current assignee: Emerson Bell Dalian Laboratory Systems Engineering Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-01-24
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a laboratory fume chamber foreign matter detection device, including the mounting panel that is fixed in fume chamber operation space top surface, the below left and right sides of mounting panel is equipped with two L type mounting panels relatively, two a lateral wall of L type mounting panel all with mounting panel parallel arrangement, two another lateral wall of L type mounting panel is parallel arrangement each other, one of them from the top down installs a plurality of correlation formula photoelectric switch transmitting terminals in proper order on the L type mounting panel, another from the last a plurality of correlation formula photoelectric switch receiving terminals of installing down in proper order on the L type mounting panel, be equipped with the actuating mechanism who is used for driving two L type mounting panel back-and-forth movements on the mounting panel, under actuating mechanism's drive, a plurality of correlation formula photoelectric switch transmitting terminals and a plurality of correlation formula photoelectric switch receiving terminals synchronous back-and-forth movement of left and right sides for survey the light path can cover whole fume chamber operation space, eliminated the detection blind area, improved the foreign matter detection effect.

Description

Laboratory fume chamber foreign matter detection device

Technical Field

The utility model relates to a fume chamber technical field, concrete field is a laboratory fume chamber foreign matter detection device.

Background

The ventilation energy consumption of the biochemical laboratory is a main component of the operation energy consumption of the laboratory, and the exhaust energy consumption of the ventilation hood accounts for the main part of the ventilation energy consumption of the laboratory. At present, two energy-saving modes for exhausting air of the fume hood are provided, one mode is variable air volume operation, namely, the air exhaust volume of the fume hood is adjusted in real time according to the height of a window. One is an auto window system that automatically drops to the lowest position after the user leaves the fume hood. The energy-saving effects of the two energy-saving modes are obvious.

Traditional foreign matter detection system of automatic window product is mainly installed correlation formula photoelectric switch in the lower limb department of fume hood sliding window, correlation formula photoelectric switch transmitting terminal sets up with correlation formula photoelectric switch receiving terminal relatively, forms a detection light path below fume hood sliding window, and the cable is walked the line from fume hood sliding window top, and this kind of installation is with walking the line mode, and it is more to cause the detection blind area of actual operation in-process, has influenced the wide application of automatic window product.

Therefore, the foreign matter detection device for the laboratory ventilation hood is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laboratory fume chamber foreign matter detection device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a laboratory fume chamber foreign matter detection device, is including the mounting panel that is fixed in fume chamber operating space top surface, the below left and right sides of mounting panel is equipped with two L type mounting panels relatively, two a lateral wall of L type mounting panel all with mounting panel parallel arrangement, two another lateral wall of L type mounting panel parallel arrangement each other, one of them install a plurality of correlation formula photoelectric switch transmitting terminals under from the top on the L type mounting panel in proper order, another from last to installing a plurality of correlation formula photoelectric switch receiving terminals down in proper order on the L type mounting panel, it is a plurality of correlation formula photoelectric switch transmitting terminal and a plurality of correlation formula photoelectric switch receiving terminal position one-to-one, be equipped with the actuating mechanism who is used for driving two L type mounting panel back-and-forth movements on the mounting panel.

Preferably, actuating mechanism is including being fixed in two install bins of both ends face about the mounting panel, two homogeneous phase is to installing two supports for the lead screw on the wall of both sides around the install bin, all installs the lead screw between two supports for the lead screw that left and right sides position is relative, two nut for the lead screw is all installed to the inside that just is located two install bins on the lead screw respectively, two linear optical axis is all installed, two in the inside of install bin and the top that is located two lead screws respectively all install linear bearing on the linear optical axis, left side between nut for linear bearing and left side lead screw, right side all install the backup pad between nut for linear bearing and the right side lead screw, two the L type mounting panel is fixed in the lower terminal surface of two backup pads respectively, two just be located two install driven gear respectively outside the install on the lead screw, actuating mechanism is still including the motor cabinet that is fixed in the mounting panel lower surface, install the motor on the motor cabinet, install the motor gear on the rotation end of motor, install synchronous cog belt between motor gear and two driven gear.

Preferably, the installation box is a rectangular box body with an opening at the lower side.

Preferably, the linear optical axis is fixed between the front side surface and the rear side surface of the inner part of the installation box.

Preferably, the motor gear and the two driven gears are distributed in an isosceles triangle shape

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a laboratory fume chamber foreign matter detection device, the utility model discloses a mounting panel is fixed in behind the roof of fume chamber, can directly walk the line from the roof of fume chamber, has reduced the influence that the wire rod produced to fume chamber operation space; the utility model discloses start actuating mechanism work, a plurality of correlation formula photoelectric switch transmitting terminals and a plurality of correlation formula photoelectric switch receiving terminals synchronous back-and-forth movement that can drive the left and right sides make the detection light path cover whole fume chamber operation space, have eliminated the detection blind area, have improved foreign matter detection effect.

Drawings

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

FIG. 2 is a schematic side view of the mounting box of the present invention;

fig. 3 is a schematic bottom view of the motor base of the present invention.

In the figure: 1. mounting a plate; 2. an L-shaped mounting plate; 3. the emitting end of the correlation type photoelectric switch; 4. a receiving end of the correlation type photoelectric switch; 5. installing a box; 6. a support for the lead screw; 7. a lead screw; 8. a nut for a lead screw; 9. a linear optical axis; 10. a linear bearing; 11. a support plate; 12. a driven gear; 13. a motor base; 14. a motor; 15. a motor gear; 16. a timing belt.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a foreign matter detection device for a laboratory fume hood comprises a mounting plate 1 fixed on the top surface of an operating space of the fume hood, the mounting plate 1 is prefabricated with a through hole, the mounting plate 1 is fixed on the top wall of the ventilation cabinet through a bolt penetrating through the through hole, after the mounting plate 1 is fixed, can be directly wired from the top wall of the fume hood, reduces the influence of wires on the operating space of the fume hood, two L-shaped mounting plates 2 are oppositely arranged at the left side and the right side below the mounting plate 1, one side wall of each of the two L-shaped mounting plates 2 is arranged in parallel with the mounting plate 1, the other side wall of each of the two L-shaped mounting plates 2 is arranged in parallel with each other, wherein a plurality of opposite photoelectric switch transmitting terminals 3 are sequentially arranged on one L-shaped mounting plate 2 from top to bottom, used for emitting light to form a detection light path, a plurality of correlation type photoelectric switch receiving ends 4 are sequentially arranged on the other L-shaped mounting plate 2 from top to bottom and used for receiving light, when foreign matters exist, the light is blocked, thereby judging whether foreign matters exist in the fume hood, the positions of a plurality of the emitting ends 3 of the correlation type photoelectric switches and the positions of a plurality of receiving ends 4 of the correlation type photoelectric switches are in one-to-one correspondence, the mounting plate 1 is provided with a driving mechanism for driving the two L-shaped mounting plates 2 to move back and forth, in the using process, the two L-shaped mounting plates 2 are respectively close to the left side wall and the right side wall of the fume hood, the two L-shaped mounting plates 2 can move back and forth under the driving of the driving mechanism, thereby driving a plurality of opposite photoelectric switch transmitting terminals 3 and a plurality of opposite photoelectric switch receiving terminals 4 on the left and right sides to synchronously move back and forth, the detection light path can cover the whole operation space of the fume hood, the detection blind area is eliminated, and the foreign matter detection effect is improved.

Particularly, actuating mechanism is including being fixed in two install bins 5 of the both ends face about the mounting panel 1, two install bin 5 around all on the both sides wall relatively install two supports 6 for the lead screw, all install lead screw 7 between two supports 6 for the lead screw that left and right sides position is relative, two nut 8 for the lead screw is all installed to the inside that just lies in two install bins 5 respectively on the lead screw 7, two the inside of install bin 5 just lies in the top of two lead screws 7 respectively and all installs straight line optical axis 9, two all install linear bearing 10 on the straight line optical axis 9, straight line optical axis 9 and linear bearing 10 play the effect of direction support, left side between linear bearing 10 and the nut 8 for the lead screw of left side, right side all install backup pad 11 between linear bearing 10 and the nut 8 for the lead screw of right side, two L type mounting panel 2 is fixed in the lower terminal surface of two backup pads 11 respectively, driven gears 12 are respectively arranged on the two lead screws 6 and outside the two mounting boxes 5, the driving mechanism further comprises a motor base 13 fixed on the lower surface of the mounting plate 1, a motor 14 is arranged on the motor base 13, a motor gear 15 is arranged on the rotating end of the motor 14, a synchronous toothed belt 16 is arranged between the motor gear 15 and the two driven gears 12, the motor 14 is started to work, the motor gear 15 can be driven to rotate, the two driven gears 12 can be driven to rotate through the synchronous toothed belt 16, the two lead screws 7 are driven to rotate, the lead screws on the two sides can drive the two supporting plates 11 to move back and forth by using nuts 8 under the guiding action of linear optical axes 9 and linear bearings 10 on the two sides, the two L-shaped mounting plates 2 are driven to move back and forth, and finally a plurality of correlation photoelectric switch transmitting ends 3 and a plurality of correlation photoelectric switch receiving ends on the left side and the right side can be driven 4 synchronously moving back and forth.

Specifically, the mounting box 5 is a rectangular box body having an open lower side.

Specifically, the linear optical axis 9 is fixed between the front and rear inner side surfaces of the mounting case 5.

Specifically, the motor gear 14 and the two driven gears 11 are distributed in an isosceles triangle

The working principle is as follows: the utility model discloses a mounting panel 1 is fixed in behind the roof of fume chamber, can directly walk the line from the roof of fume chamber, has reduced the produced influence of wire rod to fume chamber operation space. In the using process, the motor 14 is started to work, the motor gear 15 can be driven to rotate, the two driven gears 12 can be driven to rotate through the synchronous toothed belt 16, the two lead screws 7 are driven to rotate, the lead screws on the two sides can drive the two supporting plates 11 to move back and forth through the nuts 8 under the guiding action of the linear optical shafts 9 and the linear bearings 10 on the two sides, the two L-shaped mounting plates 2 are driven to move back and forth, and finally the plurality of opposite-type photoelectric switch transmitting ends 3 and the plurality of opposite-type photoelectric switch receiving ends 4 on the left and right sides can be driven to move back and forth synchronously, so that a detection light path can cover the whole operation space of the ventilation cabinet, a detection blind area is eliminated, and the foreign matter detection effect is improved.

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 specific cases to those skilled 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 and the description of the attached drawings, the specific connection mode of each part adopts the conventional means such as mature bolts, rivets, welding and the like in the prior art, the machines, parts and equipment adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so 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

1. The utility model provides a laboratory fume chamber foreign matter detection device, is including being fixed in mounting panel (1) of fume chamber operating space top surface, its characterized in that: the below left and right sides of mounting panel (1) is equipped with two L type mounting panel (2), two relatively a lateral wall of L type mounting panel (2) all with mounting panel (1) parallel arrangement, two another lateral wall of L type mounting panel (2) parallel arrangement each other, one of them a plurality of correlation formula photoelectric switch transmitting terminal (3) are installed in proper order under the follow on L type mounting panel (2), another from last to installing a plurality of correlation formula photoelectric switch receiving terminals (4) down in proper order on L type mounting panel (2), it is a plurality of correlation formula photoelectric switch transmitting terminal (3) and a plurality of correlation formula photoelectric switch receiving terminal (4) position one-to-one, be equipped with the actuating mechanism who is used for driving two L type mounting panel (2) back-and-forth movements on mounting panel (1).

2. The laboratory fume hood foreign matter detection apparatus according to claim 1, wherein: the driving mechanism comprises two installation boxes (5) fixed on the left end surface and the right end surface of an installation plate (1), two supporting seats (6) for lead screws are oppositely installed on the front side wall and the rear side wall of the two installation boxes (5), lead screws (7) are installed between the two supporting seats (6) for lead screws with opposite positions on the left side and the right side, nuts (8) for lead screws are installed on the lead screws (7) and are respectively located in the two installation boxes (5), linear optical axes (9) are installed on the two sides of the installation boxes (5) and are respectively located above the two lead screws (7), linear bearings (10) are installed on the linear optical axes (9), driven gears (12) are installed on the left side of the linear bearings (10) and between the nuts (8) for the lead screws on the left side and between the nuts (10) for the linear bearings (8) and between the nuts (8) for the lead screws on the right side, two L-shaped installation plates (2) are respectively fixed on the lower end surfaces of the two supporting plates (11), driven gears (12) are installed on the lead screws (7) and are respectively located outside the two installation boxes (5), and a motor seat (13) is installed on the motor seat (14) and is installed on the motor (14), a synchronous toothed belt (16) is arranged between the motor gear (15) and the two driven gears (12).

3. The laboratory fume hood foreign matter detection apparatus according to claim 2, wherein: the mounting box (5) is a rectangular box body with an opening at the lower side.

4. A laboratory fume hood foreign matter detecting device according to claim 2, characterized in that: the linear optical axis (9) is fixed between the front side surface and the rear side surface of the interior of the installation box (5).

5. The laboratory fume hood foreign matter detection apparatus according to claim 2, wherein: the motor gear (15) and the two driven gears (12) are distributed in an isosceles triangle.