CN215965422U

CN215965422U - Laboratory is decided wind volume and is decided pressure differential control instrument with self-cleaning structure

Info

Publication number: CN215965422U
Application number: CN202023314566.1U
Authority: CN
Inventors: 施坤永
Original assignee: Suzhou Lanqiao Intelligent Technology Co ltd
Current assignee: Suzhou Lanqiao Intelligent Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-03-08
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a laboratory constant air volume and constant pressure difference control instrument with a self-cleaning structure, which comprises a constant air volume fume hood, wherein side plates are fixedly arranged in the middle parts of two sides of the constant air volume fume hood, grooves are formed in the middle parts of one sides of the two side plates, lifting mechanisms are arranged in the two grooves, a U-shaped frame is fixedly arranged on the lifting ends of the lifting mechanisms, and cleaning rollers are rotatably connected to two sides of the inner wall of the U-shaped frame through embedded bearings. According to the utility model, the servo motor is arranged to drive the rotating shaft to rotate, the rotating shaft rotates to drive the gear A to rotate, the chain is connected between the gear A and the tooth groove B in a transmission manner, so that the chain is driven to rotate, the transmission gear is driven to lift through the rotation of the chain, and the U-shaped frame is driven to lift through the lifting of the transmission gear, so that the dust cleaning is conveniently carried out on the air outlet end of the constant-air-volume ventilation cabinet, the manual cleaning is replaced, the cleaning efficiency is effectively improved, and meanwhile, the dust is prevented from influencing the air outlet of the air outlet end.

Description

Laboratory is decided wind volume and is decided pressure differential control instrument with self-cleaning structure

Technical Field

The utility model relates to the technical field of differential pressure control instruments, in particular to a laboratory constant-air-volume and constant-differential pressure control instrument with a self-cleaning structure.

Background

The differential pressure controller is divided into an oil differential pressure controller, an air differential pressure controller, and the like. The former keeps a certain pressure difference at the position needing to establish the pressure difference, for example, the discharge pressure of the lubricating oil of the compressor is 0.1-0.2 MPa higher than the pressure in the crankcase, the compressor can normally work, and the latter carries out the next procedure operation when the pressure difference reaches a certain degree. For example, when the pressure difference between the inlet and outlet of a roll-up air filter in an air conditioning system is large, it means that the filter material cannot continue to work and should be automatically replaced with a new one, and at this time, the roll-up air filter can be automatically operated by a pressure difference controller.

The current differential pressure control instrument generally ventilates through the constant air volume fume hood, but the air outlet end of the current constant air volume fume hood is not provided with a cleaning mechanism, and a large amount of dust is easily accumulated at the air outlet, so that the normal air outlet is influenced, and therefore the laboratory constant air volume and constant differential pressure control instrument with the self-cleaning structure needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a laboratory constant air volume and constant pressure difference control instrument with a self-cleaning structure, and aims to solve the problem that the normal air outlet is influenced because a large amount of dust is easily accumulated at an air outlet because a cleaning mechanism is not arranged at the air outlet end of the conventional constant air volume fume hood provided in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a laboratory is decided wind volume and is decided pressure differential control instrument with from clearance structure, includes decides amount of wind fume chamber, the equal fixed mounting in middle part of deciding amount of wind fume chamber both sides has the curb plate, two the middle part of curb plate one side all is seted up flutedly, two the internally mounted of recess has elevating system, elevating system's lift fixed mounting has U type frame, the both sides of U type frame inner wall are rotated through the bearing of inlaying and are connected with the cleaning roller, the inside bottom equidistance fixed mounting of U type frame has a plurality of suction nozzles, the slot has been seted up to the bottom of deciding amount of wind fume chamber one side, the inside of slot is inlayed and is equipped with the dust and collects the box, the top cell wall fixed mounting of slot has the dust catcher, the dust inlet end fixed mounting of dust catcher has coupling hose, coupling hose's one end is passed slot and a plurality of suction nozzle intercommunication.

Preferably, elevating system includes drive gear, gear A, gear B, pivot and servo motor, the cavity has been seted up at the top of deciding amount of wind fume chamber, the both sides of cavity inner wall are rotated and are connected with the pivot, the both ends of pivot are all overlapped and are established and are connected with gear A, two the bottom of recess is all rotated and is connected with gear B, is located the homonymy the transmission is connected with the chain between gear A and the gear B, two the equal transmission in middle part of chain is connected with drive gear, two drive gear's center department rotates and is connected with the connecting axle, two the both sides fixed connection of connecting axle and U type frame.

Preferably, the dust collecting box is provided with a sealing strip at the joint of the slot, and the sealing strip is made of rubber.

Preferably, the middle part of one side of the dust collection box is fixedly provided with a handle, and the surface of the handle is provided with anti-skid grains which are uniformly distributed.

Preferably, four corners of the bottom end of the constant-air-volume ventilation cabinet are fixedly provided with universal wheels with brake pieces.

Preferably, the avris fixed mounting of deciding the amount of wind fume chamber has flush mounting plate of switch, flush mounting plate of switch has servo motor control switch and dust catcher control switch, servo motor and dust catcher are through the control switch and the external power supply electric connection that correspond.

The utility model has the technical effects and advantages that:

(1) the installed servo motor drives the rotating shaft to rotate, the rotating shaft drives the gear A to rotate, a chain is connected between the gear A and the tooth socket B in a transmission mode, so that the chain is driven to rotate, the transmission gear is driven to lift through the rotation of the chain, and the U-shaped frame is driven to lift through the lifting of the transmission gear, so that dust cleaning is conveniently carried out on the air outlet end of the constant-air-volume ventilation cabinet, manual cleaning is replaced, the cleaning efficiency is effectively improved, and meanwhile, the influence of dust on the air outlet of the air outlet end is avoided;

(2) through a plurality of suction nozzles of the inside bottom installation of U type frame, a plurality of suction nozzles pass through the dust inlet end intercommunication of coupling hose and dust catcher, are convenient for collect the dust that produces among the clearance process and carry out centralized processing to the inside of dust collection box, avoid the dust to get into polluted environment in the air.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2 is a schematic view of the U-shaped frame structure of the present invention.

FIG. 3 is a schematic diagram of the internal structure of the groove of the present invention.

FIG. 4 is a schematic diagram of an internal structure of the socket of the present invention.

In the figure: 1. a constant air volume fume hood; 2. a side plate; 3. a U-shaped frame; 4. cleaning the roller; 5. a universal wheel; 6. a connecting hose; 7. a slot; 8. a dust collection box; 9. a transmission gear; 10. a connecting shaft; 11. a suction nozzle; 12. a cavity; 13. a rotating shaft; 14. a gear A; 15. a chain; 16. a servo motor; 17. a groove; 18. a gear B; 19. a vacuum cleaner.

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.

The utility model provides a laboratory constant air volume and constant pressure difference control instrument with a self-cleaning structure as shown in figures 1-4, which comprises a constant air volume fume hood 1, wherein the middle parts of two sides of the constant air volume fume hood 1 are fixedly provided with side plates 2, the middle parts of one sides of the two side plates 2 are provided with grooves 17, the insides of the two grooves 17 are provided with lifting mechanisms, the lifting ends of the lifting mechanisms are fixedly provided with U-shaped frames 3, two sides of the inner wall of each U-shaped frame 3 are rotatably connected with cleaning rollers 4 through embedded bearings, the air outlet ends of the constant air volume fume hood 1 are cleaned through the cleaning rollers 4, the bottom ends of the insides of the U-shaped frames 3 are fixedly provided with a plurality of suction nozzles 11 at equal intervals, the bottom of one side of the constant air volume fume hood 1 is provided with an inserting groove 7, a dust collecting box 8 is embedded inside the inserting groove 7, the top end of the inserting groove 7 is fixedly provided with a dust collector 19, the inlet end of the dust collector 19 is fixedly provided with a connecting hose 6, one end of the connecting hose 6 passes through the slot 7 to be communicated with the plurality of suction nozzles 11, and dust generated by cleaning is conveniently sucked into the slot 7 through the dust collector 19.

The lifting mechanism comprises a transmission gear 9, a gear A14, a gear B18, a rotating shaft 13 and a servo motor 16, a cavity 12 is formed in the top of the constant air volume fume hood 1, the rotating shaft 13 is rotatably connected to two sides of the inner wall of the cavity 12, the gear A14 is respectively sleeved and connected to two ends of the rotating shaft 13, the gear B18 is rotatably connected to the bottoms of the two grooves 17, chains 15 are connected between the gear A14 and the gear B18 which are positioned on the same side in a transmission manner, the transmission gear 9 is respectively connected to the middle parts of the two chains 15 in a transmission manner, a connecting shaft 10 is rotatably connected to the center of the two transmission gears 9, the two connecting shafts 10 are fixedly connected to two sides of the U-shaped frame 3, the rotation of the servo motor 16 drives the rotation shaft 13 to rotate, the rotation of the rotation shaft 13 drives the gear A14 to rotate, the gear A14 and the gear B18 are driven by the chain 15, thereby driving the transmission gear 9 to lift and driving the cleaning roller 4 to lift and clean through the transmission gear 9.

The dust is collected box 8 and is equipped with the sealing strip with the junction subsides of slot 7, and the sealing strip is the rubber material, guarantees the leakproofness of junction, and the middle part fixed mounting of 8 one sides of box is collected to the dust has the handle, and evenly distributed's antiskid line is seted up on the surface of handle, conveniently collects box 8 with the dust and pulls out.

Four edges of the bottom end of the constant air volume fume hood 1 are fixedly provided with universal wheels 5 with brake pieces, the side of the constant air volume fume hood 1 is fixedly provided with a switch panel, the surface of the switch panel is provided with a servo motor control switch and a dust collector control switch, and the servo motor 16 and the dust collector 19 are electrically connected with an external power supply through the corresponding control switches.

The working principle of the utility model is as follows: when dust at the air outlet of the constant-air-volume ventilation cabinet 1 needs to be cleaned, the servo motor 16 is manually opened, the rotation of the rotating shaft 13 is driven through the rotation of the servo motor 16, the rotation of the gear A14 is driven through the rotation of the rotating shaft 13, the gear A14 and the gear B18 are driven through the chain 15, the chain 15 is driven to rotate, the transmission of the chain 15 drives the transmission gear 9 to ascend and descend, the transmission gear 9 ascends and descends to drive the U-shaped frame 3 to ascend and descend, the U-shaped frame 3 ascends and descends to drive the cleaning roller 4 to rotate, the dust at the air outlet of the constant-air-volume ventilation cabinet 1 is cleaned through the cleaning roller 4, the dust collector 19 is opened in the dust cleaning process, and the cleaned dust is sucked into the dust collecting box 8 by the dust collector 19 for collection.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; 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 by the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.

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

Claims

1. The utility model provides a laboratory is decided wind volume and is decided pressure differential control instrument with from clearance structure, includes decides amount of wind fume chamber (1), its characterized in that, the equal fixed mounting in middle part of deciding amount of wind fume chamber (1) both sides has curb plate (2), two the middle part of curb plate (2) one side all is seted up fluted (17), two the internally mounted of recess (17) has elevating system, elevating system's lift fixed mounting has U type frame (3), the both sides of U type frame (3) inner wall are connected with cleaning roller (4) through inlaying the bearing rotation of establishing, the bottom equidistance fixed mounting of U type frame (3) inside has a plurality of suction nozzles (11), the bottom of deciding amount of wind fume chamber (1) one side has seted up slot (7), the inside of slot (7) is inlayed and is equipped with dust collection box (8), the cell wall fixed mounting of slot (7) has dust catcher (19), a connecting hose (6) is fixedly mounted at the dust inlet end of the dust collector (19), and one end of the connecting hose (6) penetrates through the slot (7) to be communicated with the plurality of suction nozzles (11);

elevating system includes drive gear (9), gear A (14), gear B (18), pivot (13) and servo motor (16), cavity (12) have been seted up at the top of deciding amount of wind fume chamber (1), the both sides of cavity (12) inner wall are rotated and are connected with pivot (13), the both ends of pivot (13) are all overlapped and are established and are connected with gear A (14), two the bottom of recess (17) is all rotated and is connected with gear B (18), is located the homonymy the transmission is connected with chain (15), two between gear A (14) and gear B (18) the equal transmission in middle part of chain (15) is connected with drive gear (9), two the center department of drive gear (9) rotates and is connected with connecting axle (10), two the both sides fixed connection of connecting axle (10) and U type frame (3).

2. The laboratory air volume and pressure difference determining control instrument with the self-cleaning structure as claimed in claim 1, wherein a sealing strip is attached to a joint of the dust collection box (8) and the insertion groove (7), and the sealing strip is made of rubber.

3. The laboratory air volume and pressure difference determining control instrument with the self-cleaning structure as claimed in claim 1, wherein a pull handle is fixedly installed in the middle of one side of the dust collection box (8), and the surface of the pull handle is provided with anti-skid grains which are uniformly distributed.

4. The laboratory constant air volume and constant pressure difference control instrument with the self-cleaning structure as claimed in claim 1, wherein universal wheels (5) with brake sheets are fixedly mounted at four corners of the bottom end of the constant air volume fume hood (1).

5. The laboratory air volume and pressure difference determining control instrument with the self-cleaning structure as claimed in claim 2, wherein a switch panel is fixedly mounted on the side of the air volume determining fume hood (1), a servo motor control switch and a dust collector control switch are mounted on the surface of the switch panel, and the servo motor (16) and the dust collector (19) are electrically connected with an external power supply through corresponding control switches.