CN216116338U

CN216116338U - Cover is weighed to negative pressure with inlayer protective structure

Info

Publication number: CN216116338U
Application number: CN202122237094.2U
Authority: CN
Inventors: 施剑成; 施信山; 朱雨丰
Original assignee: Suzhou Xingya Clean Technology Co ltd
Current assignee: Suzhou Xingya Clean Technology Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-03-22
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a negative pressure weighing cover with an inner layer protection structure, which comprises a box body, wherein an isolation door is arranged on the right end surface of the box body, a partition plate is fixedly connected between the side wall of the inner top part of the box body and the side wall of the inner bottom end, an air inlet is arranged on the right end surface of the box body and positioned above the isolation door, a plurality of vent holes are arranged below the left end surface of the partition plate, a filter screen is fixedly connected between the partition plate and the inner left side wall of the box body, an active carbon filter plate is arranged above the filter screen, a fan is arranged above the active carbon filter plate, and when the fan works, the air inlet continuously sucks air in the outside as supplement, so that the pressure in a working area is slightly negative relative to the pressure in the outside, thereby avoiding the leakage of materials and the cross contamination between medicines in the weighing process, keeping the inside of the working area clean, and simultaneously adjusting the air inlet quantity through a first motor, the weighing device is suitable for weighing different articles.

Description

Cover is weighed to negative pressure with inlayer protective structure

Technical Field

The utility model relates to the technical field of negative pressure weighing covers, in particular to a negative pressure weighing cover with an inner-layer protection structure.

Background

The weighing cover is an open room special for pharmaceutical, microbiological research, scientific experiment and other places, and is used for weighing and subpackaging dust and reagents. The tradition is weighed and is adopted ordinary room clean processing back, uses as weighing the room, does not have corresponding air purification processing system, does not have protection supporting device more, is difficult to control dust, reagent excessive, raise, pollute, and the staff inhales dust, reagent easily and forms harm to the health, but also has the cross contamination of dust, reagent, endangers external environment and indoor personnel's safety.

In the prior art, the hundred-level laminar flow effect cannot be achieved in the weighing cover, so that the weighing operation cannot meet the GMP requirement; the defects are as follows: 1. the air pressure of a working area of the weighing cover is generally the same as that of the outside, cross contamination is easy to generate, and the cleanliness of the weighing cover cannot be guaranteed; 2. although the inner laminar flow and the wind speed of the cover can be guaranteed in a common weighing room, the pressure difference between the inner layer and the outer layer is positive, and pollutant particles in other low-grade clean areas can flow into a hundred-grade area to pollute weighed powdery medicines or liquid medicines.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a negative pressure weighing cover with an inner-layer protection structure, so as to solve the problems in the background technology.

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

a negative pressure weighing cover with an inner layer protection structure comprises a box body, wherein a separation door is installed on the right end face of the box body, a handle is fixedly installed on the right end face of the separation door, a partition plate is fixedly connected between the side wall of the inner top of the box body and the side wall of the inner bottom end, a connecting plate is fixedly connected between the right end face of the partition plate and the inner right side wall of the box body, a flow equalizing film is fixedly embedded on the connecting plate, an air inlet is formed in the right end face of the box body and positioned above the separation door, a dust screen is installed on the inner left side of the air inlet, connecting blocks are fixedly connected on the front side and the rear side of the right end face of the box body, a rotating rod is rotatably installed between the connecting blocks on the front side and the rear side, one end of the rotating rod extends out of the connecting blocks, a driven gear is fixedly connected with one end of the rotating rod, a first motor is fixedly installed on the upper end face of the box body, and a driving gear is fixedly connected with the output end of the first motor, the driving gear is meshed with the driven gear, a wind shield is fixedly sleeved on the outer surface of the rotating rod, a plurality of ventilation holes are formed below the left end face of the partition plate, a filter screen is fixedly connected between the partition plate and the inner left side wall of the box body, symmetrical fixed plates are fixedly connected to the inner left side wall of the box body and the left end face of the partition plate, limiting grooves are formed in the opposite sides of the fixed plates on the left side and the right side, an active carbon filter plate is placed between the limiting grooves on the left side and the right side, a guide rod penetrates through the upper end face of the fixed plate in a sliding manner, a hand wheel is fixedly connected to the top end of the guide rod, a pressing block is fixedly connected to the bottom end of the guide rod, a spring is sleeved on the outer surface of the guide rod, one end of the spring is fixedly connected with the upper end face of the hand wheel, the other end of the spring is fixedly connected with the upper end face of the fixed plate, the active carbon filter plate is arranged above the filter screen, and a fan is arranged above the active carbon filter plate, the output end of the fan is connected with a dust filtering cloth bag through a gas pipe, and the front side surface of the box body is provided with an access door.

Preferably, the baffle is fixedly connected with the baffle at the left end face.

Preferably, the right-hand member face of baffle is seted up flutedly, the mounting groove has been seted up to the inner bottom of recess, and the inside fixed mounting of mounting groove has the second motor, the output fixedly connected with threaded rod of second motor, the top of threaded rod rotates with the interior top lateral wall of recess to be connected, the surface screw thread of threaded rod has connect the movable plate soon, the right-hand member face fixedly connected with weighing platform of movable plate, the up end lock of weighing platform has transparent safety cover, and is provided with two sets of operation mouths on the transparent safety cover, and rubber gloves are installed to the inner wall of operation mouth.

Preferably, the front and rear end surfaces of the moving plate are slidably connected with the inner front and rear side walls of the groove.

Preferably, the right-hand member face of baffle and the top that is located the recess install the light, photosensitive sensor is installed to the below of light, the controller is installed to the inner wall of box, the controller is respectively through the signal input part of wire and first motor, the signal input part of second motor, photosensitive sensor's signal output part, the signal input part of light and the signal output part electric connection of fan.

Preferably, a plurality of rollers are installed on the bottom end face of the box body, and the isolation door is made of transparent glass.

Compared with the prior art, the utility model has the beneficial effects that: the negative pressure weighing cover is convenient to use, simple to operate and good in isolation effect, when the fan works, the air inlet continuously absorbs air in the outside as supplement, so that the pressure in a working area is slightly negative relative to the pressure outside, the leakage of materials and the cross contamination between medicines in the weighing process are avoided, the cleanness of the inside of the working area is kept, meanwhile, the size of the air inlet amount of the negative pressure weighing cover can be adjusted through the first motor, the negative pressure weighing cover adapts to the weighing requirements of different articles, the applicability of the negative pressure weighing cover is improved, when the active carbon filter plate needs to be replaced, the access door is opened, a new active carbon filter plate is inserted between the limiting grooves on the left side and the right side, and then the pressing block is pressed to cover the active carbon filter plate under the action of the spring, so that the active carbon filter plate can be positioned, and a person can conveniently replace the active carbon filter plate; the noise insulation board can prevent the noise generated when the fan works from affecting the operator, so that the noise reduction protection is carried out on the operator; the height of the weighing platform can be adjusted through the second motor, the weighing platform is suitable for operators with different heights to use, and meanwhile, the transparent protective cover is matched to further isolate the medicine from the operators, so that the medicine is prevented from being inhaled by the operators; when the photosensitive sensor detects that the illumination of the working area inside the box body is insufficient, the photosensitive sensor transmits a signal to the controller, and the controller turns on the illuminating lamp to supplement the illumination.

Drawings

FIG. 1 is a schematic front cross-sectional view of a main body structure of a negative pressure weighing cover with an inner-layer protection structure;

fig. 2 is a schematic right-view structural diagram of a main body of a negative pressure weighing cover with an inner-layer protection structure.

In the figure: 1-box body, 2-partition board, 3-vent hole, 4-sound insulation board, 5-roller, 6-dust filtering cloth bag, 7-filter screen, 8-active carbon filter board, 9-fixed board, 10-press block, 11-spring, 12-hand wheel, 13-air pipe, 14-fan, 15-fixed block, 16-connecting board, 17-flow equalizing membrane, 18-dust screen, 19-wind screen, 20-air inlet, 21-lighting lamp, 22-photosensitive sensor, 23-groove, 24-isolation door, 25-controller, 26-weighing table, 27-moving board, 28-threaded rod, 29-second motor, 30-first motor, 31-rotating rod.

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.

Referring to fig. 1-2, the present invention provides a technical solution: a negative pressure weighing cover with an inner layer protection structure comprises a box body 1, wherein a separation door 24 is installed on the right end face of the box body 1, a handle is fixedly installed on the right end face of the separation door 24, a partition plate 2 is fixedly connected between the side wall of the inner top part and the side wall of the inner bottom end of the box body 1, a connecting plate 16 is fixedly connected between the right end face of the partition plate 2 and the inner right side wall of the box body 1, a flow equalizing film 17 is fixedly embedded on the connecting plate 16, an air inlet 20 is formed in the right end face of the box body 1 and positioned above the separation door 24, a dust screen 18 is installed on the inner left side of the air inlet 20, connecting blocks 15 are fixedly connected on the front side and the rear side of the right end face of the box body 1, a rotating rod 31 is rotatably installed between the connecting blocks 15 on the front side and the rear side, one end of the rotating rod 31 extends out of the connecting blocks 15, a driven gear is fixedly connected with one end of the rotating rod 31, a first motor 30 is fixedly installed on the upper end face of the box body 1, the output end of the first motor 30 is fixedly connected with a driving gear which is meshed with a driven gear, the outer surface of the rotating rod 31 is fixedly sleeved with a wind shield 19, a plurality of ventilation holes 3 are formed below the left end surface of the baffle plate 2, a filter screen 7 is fixedly connected between the baffle plate 2 and the inner left side wall of the box body 1, the inner left side wall of the box body 1 and the left end surface of the baffle plate 2 are fixedly connected with symmetrical fixing plates 9, limiting grooves are formed in opposite sides of the fixing plates 9 on the left side and the right side, an activated carbon filter plate 8 is placed between the limiting grooves on the left side and the right side, a guide rod is slidably penetrated through the upper end surface of the fixing plate 9, the top end of the guide rod is fixedly connected with a hand wheel 12, the bottom end of the guide rod is fixedly connected with a pressing block 10, a spring 11 is sleeved on the outer surface of the guide rod, one end of the spring 11 is fixedly connected with the upper end surface of the hand wheel 12, and the other end of the spring 11 is fixedly connected with the upper end surface of the fixing plate 9, active carbon filter 8 establishes in the top of filter screen 7, and installs fan 14 above active carbon filter 8, fan 14's output is connected with dust filtration sack 6 through gas-supply pipe 13, the access door is installed to the leading flank of box 1.

When the device is used, the isolation door 24 is closed to ensure that the working area is isolated from the external environment, then the fan 14 is started, when the fan 14 works, the external air enters through the air inlet 20, then the air enters the working area after passing through the flow-equalizing membrane 17, then the air enters the dust-filtering cloth bag 6 from the air pipe 13 under the action of the fan 14 after sequentially passing through the vent hole 3, the filter screen 7 and the active carbon filter plate 8, finally the air is output after being filtered by the dust-filtering cloth bag 6, and the air in the external is continuously absorbed by the air inlet 20 to be supplemented in the working area, so that the pressure in the working area is slightly negative relative to the pressure in the external, thereby avoiding the leakage of materials and the cross contamination among medicines in the weighing process, keeping the inside of the working area clean, meanwhile, the air inlet volume of the device can be adjusted by the first motor 30 to adapt to the weighing requirements of different articles, and the applicability of the device is increased, when the active carbon filter 8 needs to be changed, the access door is opened, the new active carbon filter 8 is inserted between the limiting grooves on the left side and the right side, and then the active carbon filter 8 is covered by the pressing block 10 under the action of the spring 11, so that the active carbon filter 8 can be positioned, and the active carbon filter 8 can be changed by the personnel convenient to use.

The left end face of the partition board 2 is fixedly connected with a sound insulation board 4, and the noise generated when the fan 14 works can be prevented from affecting an operator through the sound insulation board 4, so that noise reduction protection is performed on the operator.

The right-hand member face of baffle 2 is seted up flutedly 23, the mounting groove has been seted up to the inner bottom of recess 23, and the inside fixed mounting of mounting groove has second motor 29, the output fixedly connected with threaded rod 28 of second motor 29, the top of threaded rod 28 rotates with the interior top lateral wall of recess 23 to be connected, the surface screw thread of threaded rod 28 has connect movable plate 27 soon, movable plate 27's right-hand member face fixedly connected with weighing platform 26, weighing platform 26's up end lock has transparent safety cover, and is provided with two sets of operation mouths on the transparent safety cover, and rubber gloves are installed to the inner wall of operation mouth.

The height of the weighing platform 26 can be adjusted through the second motor 29, the weighing platform is suitable for operators with different heights to use, and meanwhile, the transparent protective cover is matched to further isolate the medicine from the operators, so that the medicine is prevented from being sucked by the operators.

The front and rear end surfaces of the moving plate 27 are slidably connected to the inner front and rear side walls of the groove 23.

The right-hand member face of baffle 2 and the top that is located recess 23 install light 21, photosensitive sensor 22 is installed to the below of light 21, controller 25 is installed to the inner wall of box 1, controller 25 is respectively through wire and first motor 30's signal input part, second motor 29's signal input part, photosensitive sensor 22's signal output part, light 21's signal input part and fan 14's signal output part electric connection.

When the photosensitive sensor 22 detects that the illumination of the working area inside the box body 1 is insufficient, the photosensitive sensor 22 transmits a signal to the controller 25, and the controller 25 turns on the illuminating lamp 21 to supplement the illumination.

A plurality of gyro wheels 5 are installed to the bottom face of box 1, isolation door 24 adopts the clear glass material, is convenient for remove and transport this device through gyro wheel 5, and the isolation door 24 of clear glass material not only is convenient for external illumination to get into, and the external personnel of being convenient for simultaneously know inside operating personnel and are operating to can avoid external personnel to open isolation door 24.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a cover is weighed to negative pressure with inlayer protective structure, includes box (1), its characterized in that: the improved garbage bin is characterized in that an isolating door (24) is installed on the right end face of the bin body (1), a handle is fixedly installed on the right end face of the isolating door (24), a partition plate (2) is fixedly connected between the side wall of the inner top of the bin body (1) and the side wall of the inner bottom end, a connecting plate (16) is fixedly connected between the right end face of the partition plate (2) and the inner right side wall of the bin body (1), a flow equalizing film (17) is fixedly embedded on the connecting plate (16), an air inlet (20) is formed in the right end face of the bin body (1) and positioned above the isolating door (24), a dust screen (18) is installed on the inner left side of the air inlet (20), connecting blocks (15) are fixedly connected to the front side and the rear side of the right end face of the bin body (1), a rotating rod (31) is installed between the connecting blocks (15) on the front side and the rear side in a rotating mode, one end of the rotating rod (31) extends out of the connecting block (15), and a driven gear is fixedly connected to one end of the rotating rod (31), a first motor (30) is fixedly installed on the upper end face of the box body (1), a driving gear is fixedly connected to the output end of the first motor (30), the driving gear is meshed with a driven gear, a wind shield (19) is fixedly sleeved on the outer surface of the rotating rod (31), a plurality of ventilation holes (3) are formed in the lower portion of the left end face of the partition plate (2), a filter screen (7) is fixedly connected between the partition plate (2) and the inner left side wall of the box body (1), symmetrical fixing plates (9) are fixedly connected to the inner left side wall of the box body (1) and the left end face of the partition plate (2), limiting grooves are formed in the opposite sides of the fixing plates (9) on the left side and the right side, an active carbon filter plate (8) is placed between the limiting grooves on the left side and the right side, a guide rod penetrates through the upper end face of the fixing plate (9) in a sliding mode, and a hand wheel (12) is fixedly connected to the top end of the guide rod, the bottom fixedly connected with briquetting (10) of guide arm, the surface cover of guide arm is equipped with spring (11), the up end fixed connection of the one end of spring (11) and hand wheel (12), the other end of spring (11) and the up end fixed connection of fixed plate (9), establish in the top of filter screen (7) active carbon filter (8), and the top of active carbon filter (8) installs fan (14), the output of fan (14) is connected with dust filtration sack (6) through gas-supply pipe (13), the access door is installed to the leading flank of box (1).

2. The negative pressure weighing cover with the inner-layer protection structure is characterized in that: and the left end surface of the clapboard (2) is fixedly connected with a sound insulation board (4).

3. The negative pressure weighing cover with the inner-layer protection structure is characterized in that: the right-hand member face of baffle (2) is seted up flutedly (23), the mounting groove has been seted up to the inner bottom of recess (23), and the inside fixed mounting of mounting groove has second motor (29), output fixedly connected with threaded rod (28) of second motor (29), the top of threaded rod (28) rotates with the interior top lateral wall of recess (23) to be connected, the surface screw thread of threaded rod (28) has connect movable plate (27) soon, right-hand member face fixedly connected with of movable plate (27) weighs platform (26), the up end lock of weighing platform (26) has transparent safety cover, and is provided with two sets of operation mouths on the transparent safety cover, and rubber gloves are installed to the inner wall of operation mouth.

4. The negative pressure weighing cover with the inner layer protection structure is characterized in that: the front end surface and the rear end surface of the moving plate (27) are connected with the inner front side wall and the inner rear side wall of the groove (23) in a sliding mode.

5. The negative pressure weighing cover with the inner-layer protection structure is characterized in that: the right-hand member face of baffle (2) is located the top of recess (23) and installs light (21), photosensitive sensor (22) are installed to the below of light (21), controller (25) are installed to the inner wall of box (1), signal input part through wire and first motor (30), signal input part of second motor (29), the signal output part of photosensitive sensor (22), the signal input part of light (21) and the signal output part electric connection of fan (14) are respectively passed through in controller (25).

6. The negative pressure weighing cover with the inner-layer protection structure is characterized in that: a plurality of rollers (5) are installed on the bottom end face of the box body (1), and the isolating door (24) is made of transparent glass.