CN217367637U

CN217367637U - Laminar flow protective cover

Info

Publication number: CN217367637U
Application number: CN202222049091.0U
Authority: CN
Inventors: 张博文; 朱宏宇; 魏伟; 周佳浩; 曹媛
Original assignee: Beijing First Biochemical Pharmaceutical Co ltd
Current assignee: Beijing First Biochemical Pharmaceutical Co ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2022-09-06
Anticipated expiration: 2032-08-05

Abstract

The utility model provides a laminar flow protective cover, which comprises a box body, a fan and a filtering device, wherein the upper part of the box body is provided with a cavity for accommodating the fan and an air detection device, the wall of the cavity is directly provided with air outlet and an air inlet, the structure is simple, the filtering device is arranged, air is blown into a working space after double-layer filtering, the air cleanness is improved, and the air detection device detects and displays the air filtering condition degree; the utility model provides a laminar flow safety cover, the box lower part is by baffle and structure frame formation airtight space, but is equipped with movable switch's from top to bottom work window on the baffle, makes things convenient for the production operation, reduces the airtight space of unprocessed air admission.

Description

Laminar flow protective cover

Technical Field

The utility model belongs to the technical field of the laminar flow safety cover, specifically be a laminar flow safety cover.

Background

The clean laminar flow hood is an air purification unit which can provide local clean environment, can be flexibly installed above a process point needing high cleanliness, can be used singly, can be combined into a plurality of belt-shaped clean areas, and is particularly common in the medicine filling link. The conventional clean laminar flow cover can achieve a certain air cleaning effect in the using process, but one side surface of an operation platform is usually hollow, so that unfiltered air can easily enter the laminar flow cover, and the requirement of production on cleanliness cannot be met; or only one side of the operation platform is provided with a door, which is not beneficial to timely and convenient processing of production accidents in the filling link. And the fan is installed inside the box and is inconvenient for part maintenance, overhaul and cleaning. Meanwhile, devices such as an independent air inlet and an independent air outlet need to be installed, and the structure is complex.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the problem, the utility model provides a laminar flow safety cover possesses and improves clean rate and simple structure, and easy dismounting and the advantage of maintenance have been solved in unfiltered air gets into the laminar flow cover easily for the air cleanliness factor can not reach the production requirement and the complicated difficult problem of dismantling and maintaining of laminar flow cover structure.

(II) technical scheme

In order to realize the purposes of improving the cleaning rate and simplifying the structure, thereby improving the yield of products and being convenient for maintaining and disassembling the laminar flow protective cover.

The utility model provides a laminar flow safety cover, include by box, fan and filter equipment, the box comprises structure frame and baffle, its characterized in that: the air inlet, the air detection device, the fan, the air outlet and the filtering device form a filtering channel together.

Preferably, the fan comprises a fan shell, the fan shell is of a cylindrical structure with the periphery sealed, a motor and fan blades are fixedly mounted inside the fan shell through a support, the height of the fan is smaller than that of the inside of the cavity, the size of a cylindrical opening of the fan shell is slightly larger than that of an air outlet in the bottom surface of the cavity, a fastening piece is arranged at the cylindrical opening of the fan shell, the fan shell is detachably connected to the position right above the air outlet through the fastening piece, and a sealing ring is arranged on the periphery of the cylindrical opening of the fan shell.

Preferably, the air inlets are formed in the side wall of the cavity, the number of the air inlets is at least one, and the filtering device is installed at the air inlets.

Preferably, the number of the air outlets is at least one, the number of the air outlets is the same as that of the fans, and the filtering device is arranged at the air outlet.

Preferably, filter equipment in the box can be divided into an air inlet filter mantle and an air outlet filter mantle, the air inlet filter mantle with the air outlet filter mantle comprises support frame and high-efficient filter screen, the support frame edge is provided with the screw hole, the air inlet filter mantle with the air intake size suits and fixed mounting is in the air intake, the air outlet filter mantle with the air outlet size phase-match and fixed mounting is in the air outlet.

Preferably, a grid blocking piece is arranged outside the edge of the air inlet, the grid blocking piece comprises a connecting strip and a grid blocking part, the grid blocking piece is fixedly connected to the edge of the air inlet through one end of the connecting strip, the other end of the connecting strip is fixedly connected to the grid blocking part, the connecting strip is vertically connected with the grid blocking part, the length of the connecting strip is equal to the thickness of the air inlet filter cover, two groups of movable buckles are symmetrically arranged on the outer side of the periphery of the edge of the air inlet, four studs are arranged on the outer side of the edge of the air outlet, the studs correspond to the threaded holes in position relation and are matched with the threaded holes in specification and size.

Preferably, the box lower part is by the airtight workspace that baffle and structure frame formed, and airtight workspace lateral wall is sliding window structural design from top to bottom, the surface mounting of structure frame has the vertically slide rail, and the austral window, sliding window comprises two transparent acrylic boards and fixes at its both sides aluminum alloy long block, aluminum alloy long block one side and ya keli baffle fixed connection, and the opposite side is seted up flutedly, and the damping gyro wheel passes through connecting axle fixed mounting in the recess to with slide rail swing joint, two acrylic boards are parallel in vertical direction, and two acrylic boards have the part to overlap, overlap the corresponding surface formation clearance in position, arbitrary acrylic board is provided with the sealing strip in clearance department.

Preferably, the top of box is provided with controlgear, the fan with the equal electric connection of empty gas detection surveys the device on the controlgear, controlgear includes the monitoring device of fan, empty gas detection surveys the device's control analytical equipment and signal emission device, and be equipped with the touch-control display screen on the outer wall of box, the touch-control display screen through the inside radio signal receiving device who sets up with controlgear wireless connection.

(III) advantageous effects

Compared with the prior art, the utility model provides a laminar flow safety cover possesses following beneficial effect:

1. this laminar flow safety cover, through installing air inlet filter mantle and air outlet filter mantle respectively in air outlet and air inlet department, and install empty gas detection surveys the device between air intake and fan, be equipped with supporting control and display device simultaneously on the box wall, carry out double-deck filtration to the air, and in time detect the quality after the air first filtered, improve the clean rate of air, ensure that the air cleanliness factor that gets into workspace when the pharmaceutical production filling link accords with the production requirement, guarantee production quality.

2. According to the laminar flow protection cover, the air inlet and the air outlet are directly formed in the side wall of the upper portion of the box body, the air outlet is formed in the bottom of the box body, the air inlet filter cover and the air outlet filter cover are respectively and fixedly arranged at the air inlet and the air outlet through the screws and the movable lock catches, so that the laminar flow protection cover does not need to be separately provided with the air inlet and the air outlet, the structure is simplified, and the filter device is quite convenient to disassemble and replace due to the matched use of the screws and the movable lock catches; meanwhile, the size of the fan is set to be slightly smaller than that of the air inlet, and the fan is fixed in the box body through the detachable screws, so that the fan is more convenient to detach and maintain.

3. This laminar flow safety cover through be equipped with the work window that push-and-pull was opened from top to bottom on the ya keli baffle of box lower part, when conveniently observing, still make things convenient for the production operation, inside medicine filling platform breaks down, can directly pull up whole windows, and the staff need not get into inside just can the operation maintenance, if the air outlet at top need be changed or the maintenance, directly with the whole drop-downs of window, can operate.

Drawings

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

FIG. 2 is a schematic view of the installation of the air-out filter cover of the present invention;

fig. 3 is a schematic view of a partially enlarged structure of the slide rail pulley of the present invention;

fig. 4 is a schematic structural diagram of the control device of the present invention;

FIG. 5 is a schematic view of the structure of the grid stop of the present invention;

FIG. 6 is a schematic structural view of the filtering device of the present invention;

fig. 7 is a schematic structural view of the fan of the present invention;

fig. 8 is a schematic view of the installation of the fan of the present invention.

In the figure: 1. a box body; 101. a structural frame; 102. a baffle plate; 103. a cavity; 2. a fan; 201. a fan housing; 202. a motor; 203. a fan blade; 204. a seal ring; 3. a filtration device; 301. an air inlet filter cover; 302. an air outlet filter cover; 303. a support frame; 304. a high-efficiency filter screen; 4. an air inlet; 5. an air outlet; 6. an air detection device; 7. a shelf; 701. a connecting strip; 702. a grid stop part; 8. a control device; 801. a monitoring device; 802. monitoring the analytical device; 803. a signal transmitting device; 9. a touch display screen; 10. damping rollers; 11. a slide rail; 12. a sealing strip; 13. a stud; 14. a threaded hole; 15. a movable buckle; 16. and (3) aluminum alloy long blocks.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings.

Referring to fig. 1-8, the present invention provides a technical solution:

a laminar flow protective cover comprises a box body 1, a fan 2 and a filtering device 3.

The box body 1 consists of a stainless steel structural frame 101 and a transparent acrylic baffle 102, the transparent acrylic baffle is convenient for workers or monitoring cameras to clearly know the working condition on a workbench in the box body, the top end in the box body 1 is provided with a cavity 103, the side wall of the cavity 103 is provided with an air inlet 4,

the air inlets 4 are arranged on the side wall of the cavity 103, the number of the air inlets is at least one, one or more air inlets can be selected and arranged according to actual requirements in work and production, specifically, the number of the air inlets can be respectively 1 on the front side and the rear side and 2 on the front side and the rear side and 4 on the front side and the rear side and respectively 2 on the front side and the rear side and respectively 1 on the left side and the right side and respectively 6 on the left side, so that the air inlet amount is controlled, the air circulation speed is increased, and the air cleaning efficiency is improved.

The filter device 3 can be divided into an inlet air filter cover 301 and an outlet air filter cover 302, the size specifications of the inlet air filter cover 301 and the outlet air filter cover 302 are different, the inlet air filter cover 301 and the outlet air filter cover 302 are both composed of a support frame 303 and a high-efficiency filter screen 304, the high-efficiency filter screen 304 can be disassembled and replaced, the filter device can be reused only by replacing the high-efficiency filter screen 304 after use, the production cost is saved to a certain extent, the edge of the support frame 303 is provided with a threaded hole 14,

4 border departments of air intake are outside to be provided with check and keep off 7, check keep off 7 includes connecting strip 701 and check fender portion 702, check keep off 7 one end fixed connection that passes through connecting strip 701 is in 4 border departments of air intake, the other end fixed connection of connecting strip 701 is check fender portion 702, and connecting strip 701 is perpendicular with check fender portion 702 and is connected, the length of connecting strip 701 is the same with the thickness of air intake filter mantle 301, 4 border departments of air intake are all around the outside symmetry and are provided with two sets of movable buckles 15, air intake filter mantle 301 suits with 4 sizes of air intake, air intake filter mantle 301 is installed in 4 departments of air intake under the combined action of check fender 7 and movable buckle 15.

The bottom surface center of cavity 103 is provided with air outlet 5, and air outlet 5 quantity has at least one, and the quantity of air outlet 5 is the same with the quantity of fan 2, specifically can be 1, 2 etc, and 5 border department outsides at the air outlet are provided with four studs 13, and stud 13 corresponds and specification and size phase-match with screw hole 14 position relation, and air-out filter mantle 302 and air outlet 5 size phase-match, and air-out filter mantle 302 passes through stud 13 fixed mounting at air outlet 5.

The air inlet 4 and the air outlet 5 are both directly arranged on the box body, and no other air outlet 5 and air inlet 4 are arranged independently, so that the structure is simple. The air detection device 6 is arranged between the air inlet 4 and the air outlet 5, the air outlet filter cover 302 and the air inlet filter cover 301 are arranged at the air outlet 5 and the air inlet 4 in a simple and detachable mode, the air inlet filter cover 301 and the air outlet filter cover 302 form two-stage filtration in work, and if detection data transmitted by the air detection device 6 arranged between the air inlet filter cover 301 and the air outlet filter cover 302 meet requirements, the cleaning effect of the air inlet filter cover 301 is still met, and the design requirement of the whole protection cover is met; if the detection data transmitted by the air detection device 6 does not meet the requirements slightly, it is indicated that the filtering function of the inlet air filtering cover 301 is partially disabled, but the outlet air filtering cover 302 still has the filtering function, so that the functional integrity of the laminar flow cover is ensured, the cleanness degree of the air in the laminar flow cover is protected, and the filtering cover which does not meet the requirements needs to be replaced as soon as possible. Meanwhile, the air inlet filter cover 301 and the air outlet filter cover 302 adopt the installation design which is convenient to detach, so that the filter device is convenient to replace and maintain by workers.

The fan 2 comprises a fan shell 201, the fan shell 201 is of a cylindrical structure with the periphery sealed, a motor 202 and fan blades 203 are fixedly mounted inside the fan shell 201 through a support, the height of the fan 2 is smaller than the height inside the cavity 103, and the height of the fan preferably does not exceed half of the height inside the cavity 103, so that the air flow can be increased, the air circulation is promoted, and the air cleaning efficiency is improved to a certain degree. The cylinder opening of the fan shell 201 is slightly larger than the size of the air outlet 5 on the bottom surface of the cavity 103, slightly smaller than the air inlet 4, a worker can install and maintain the fan 2 through the air inlet 4 conveniently, the cylinder opening of the fan shell 201 is provided with a fastener, the fastener can be a screw or a buckle, the fan shell 201 is detachably connected right above the air outlet 5 through the fastener, a sealing ring 204 is arranged on the periphery of the cylinder opening of the fan shell 201, the sealing ring 204 is installed between the cylinder opening of the fan shell 201 and the bottom of the cavity 103, noise generated by contact with the cavity 103 can be reduced when the fan 2 works, meanwhile, the sealing ring 204 ensures the air outlet tightness of the fan 2, and the problem that airflow inside the cavity 103 is disordered and the air outlet and the filtering efficiency are affected is avoided.

The lower part of the box body 1 is a closed working space formed by a baffle plate 102 and a structural frame 101, the side wall of the closed working space is designed into an upper sliding window and a lower sliding window structure, a vertical sliding rail 11 is arranged on the surface of the structural frame 101, the sliding window is composed of two transparent acrylic plates and aluminum alloy long blocks 16 fixed on the two sides of the transparent acrylic plates, one side of each aluminum alloy long block 16 is fixedly connected with an acrylic baffle plate, the other side of each aluminum alloy long block is provided with a groove, a damping roller 10 is fixedly arranged in each groove through a connecting shaft, the damping force of the damping roller 10 can limit the self displacement of a light and thin transparent acrylic plate window to prevent the light and thin transparent acrylic plate window from sliding downwards, meanwhile, the damping force does not influence the working personnel to open the window up and down, and the damping device is movably connected with the sliding rail 11, the two acrylic plates are parallel in the vertical direction, and the two acrylic plates are partially overlapped, a gap is formed on the corresponding surface of the overlapped part, and a sealing strip 12 is arranged at the gap of any acrylic plate. When laminar flow cover or inside workstation broke down, can maintain through the activity window, the air in this workspace gets into from the top and scatters from the bottom, from last one-way flow down, has guaranteed the cleanliness factor of the air that gets into workspace to increase the qualification rate of product.

The top of box 1 is provided with controlgear 8, fan 2 and the equal electric connection of empty gas detection survey device 6 are on controlgear 8, controlgear 8 includes fan 2's monitoring device 801, empty gas detection survey device 6's control analytical equipment 802 and signal emission device 803, and be equipped with touch-control display screen 9 on box 1's the outer wall (or other arbitrary convenient operation's position), touch-control display screen 9 is through the inside wireless signal reception device and the 8 wireless connection of controlgear that set up, can in time show the air purification condition in the cavity, make things convenient for the staff in time to change filter equipment in order to ensure the clean effect of air, promote the cleanliness factor of air in the working space, reduce the product pollution rate, improve the productivity ratio of product qualification.

The working principle is as follows: in the medicine production process, laminar flow hood during operation, under the effect of fan, laminar flow hood outside air carries out primary filtration through air inlet filter mantle 301 of air intake 4, the air after the filtration flows through air detection set 6 and is detected simultaneously, the inside filtered air of cavity blows to the air outlet under the effect of fan, and after 302 secondary filter through the air-out filter mantle, get into laminar flow hood inner work space, touch-control display screen 9 is through the wireless signal reception device and the 8 wireless connection of controlgear of inside setting, can in time show the air condition in the cavity, when laminar flow hood or inside workstation break down, can maintain through the movable window.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a laminar flow safety cover, includes box (1), fan (2) and filter equipment (3), and box (1) comprises structure frame (101) and baffle (102), its characterized in that: the utility model discloses a filter box, including box (1), cavity (103), air outlet (5), air intake (4) and air outlet (5), the inside top of box (1) is equipped with cavity (103), cavity (103) lateral wall is equipped with air intake (4), the bottom surface central authorities of cavity (103) are provided with air outlet (5), air intake (4) with between air outlet (5) the inside fixed mounting of cavity (103) has filter equipment (3), empty gas detection surveys device (6) and fan (2), air intake (4), empty gas detection surveys device (6), fan (2), air outlet (5) and filter equipment (3), constitutes the filtration passageway jointly.

2. The laminar flow protective cover of claim 1, wherein: fan (2) include fan casing (201), fan casing (201) are all around sealed tubular structure, there are motor (202) and flabellum (203) inside of fan casing (201) through support fixed mounting, the height of fan (2) is less than cavity (103) inside height, fan casing (201) nozzle size slightly is greater than the size of cavity (103) bottom surface air outlet (5), fan casing (201) nozzle department is provided with the fastener, fan casing (201) passes through fastener detachable to be connected directly over air outlet (5), and fan casing (201) nozzle department a week is provided with sealing washer (204).

3. The laminar flow protective cover of claim 1, wherein: the air inlets (4) are arranged on the side wall of the cavity (103), the number of the air inlets is at least one, and the filter device (3) is arranged at the air inlets (4).

4. The laminar flow protective cover of claim 1, wherein: the number of the air outlets (5) is at least one, the number of the air outlets (5) is the same as that of the fans (2), and the filtering device (3) is arranged at the air outlets (5).

5. The laminar flow protective cover of claim 1, wherein: filter equipment (3) in box (1) can be divided into air inlet filter mantle (301) and air-out filter mantle (302), air inlet filter mantle (301) with air-out filter mantle (302) comprise support frame (303) and high-efficient filter screen (304), support frame (303) edge is provided with screw hole (14), air inlet filter mantle (301) with air intake (4) size suits and fixed mounting is in air intake (4), air-out filter mantle (302) with air outlet (5) size phase-match and fixed mounting be in air outlet (5).

6. The laminar flow protective cover of claim 5, wherein: the air inlet structure is characterized in that a lattice piece (7) is arranged outside the edge of the air inlet (4), the lattice piece (7) comprises a connecting strip (701) and a lattice blocking part (702), the lattice piece (7) is fixedly connected to the edge of the air inlet (4) through one end of the connecting strip (701), the other end of the connecting strip (701) is fixedly connected with the lattice blocking part (702), the connecting strip (701) is vertically connected with the lattice blocking part (702), the length of the connecting strip (701) is equal to the thickness of the air inlet filter cover (301), two groups of movable buckles (15) are symmetrically arranged on the outer side of the periphery of the edge of the air inlet (4), four studs (13) are arranged on the outer side of the edge of the air outlet (5), the studs (13) and the threaded holes (14) are corresponding in position relation and matched in specification and size.

7. The laminar flow protective cover of claim 1, wherein: the utility model discloses a box, including box (1), box and structure frame (101), box (1) lower part is the airtight workspace that is formed by baffle (102) and structure frame (101), and airtight workspace lateral wall is sliding window structural design from top to bottom, the surface mounting of structure frame (101) has vertically slide rail (11), and the sliding window comprises two transparent ya keli boards and fixes long piece (16) of aluminum alloy in its both sides, and long piece (16) one side of aluminum alloy and ya keli baffle fixed connection, and the opposite side is seted up flutedly, and damping roller (10) are through connecting axle fixed mounting in the recess to with slide rail (11) swing joint, two ya keli boards are parallel in vertical direction, and two ya keli boards have the part to overlap, overlap the corresponding surface in position and form the clearance, arbitrary ya keli board is provided with sealing strip (12) in clearance department.

8. The laminar flow protective cover according to claim 1, characterized in that: the top of box (1) is provided with controlgear (8), fan (2) with the equal electric connection of empty gas detection surveys device (6) is on controlgear (8), controlgear (8) include monitoring device (801) of fan (2), monitoring analytical equipment (802) and signal emission device (803) of empty gas detection surveys device (6), and be equipped with touch-control display screen (9) on the outer wall of box (1), touch-control display screen (9) through the inside wireless signal receiving arrangement who sets up with controlgear (8) wireless connection.