CN219128695U

CN219128695U - Negative pressure laminar flow hood capable of changing filter on side face

Info

Publication number: CN219128695U
Application number: CN202223431170.4U
Authority: CN
Inventors: 夏书阳
Original assignee: Wuxi Jingyuan Purification Equipment Co ltd
Current assignee: Wuxi Jingyuan Purification Equipment Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-06-06
Anticipated expiration: 2032-12-21

Abstract

The utility model relates to the technical field of laminar flow hoods, in particular to a negative pressure laminar flow hood capable of changing a filter on the side face, which comprises a filter box, wherein a rotating ring is fixedly arranged at the lower end of the filter box, a base is rotatably connected to the lower end of the rotating ring, four feet are fixedly arranged at the lower end of the base, friction pads are respectively arranged on the four feet of the filter box, metal protection plates are fixedly arranged on the front end face and the rear end face of the filter box, two guide sliding grooves which are longitudinally symmetrical are fixedly arranged in the filter box, the guide sliding grooves are L-shaped, electromagnetic spring blocks are fixedly arranged at the upper ends of the two guide sliding grooves, the upper ends of the two guide sliding grooves are slidably connected with the filter, an air suction component positioned at the upper side and a filter component positioned at the lower side are arranged in the filter, a flow equalizing plate is fixedly arranged at the lower end of the two guide sliding grooves, an air outlet and an air inlet are respectively arranged at the upper end and lower end of the filter, sliding plates are respectively connected to the left end face and the right end face of the filter box, the sliding plates can be opened, the side face can be changed without disassembling and changing through the upper end and lower end.

Description

Negative pressure laminar flow hood capable of changing filter on side face

Technical Field

The utility model relates to the technical field of laminar flow hoods, in particular to a negative pressure laminar flow hood with a filter capable of being replaced on the side face.

Background

Laminar flow hoods are one of the devices that can shield operators from products, and their primary purpose is to avoid product contamination. The air sucked from the clean room is then provided with unidirectional flow air for the key area by adopting a fan arranged in the top plenum cabin, and the waste gas is discharged from the lower part and returned to the clean room area;

compared with a clean room, the clean laminar flow hood has the advantages of investment saving, quick response, low civil engineering requirements on a factory building, convenient installation, power saving and the like, and is widely used in departments of precision machinery, electronics, pharmacy, food, fine chemical industry and the like at present;

the filter of the laminar flow hood in the prior art is arranged inside the hood body, when the filter needs to be replaced, the filter is difficult to detach and install, so that the routine maintenance of the laminar flow hood is inconvenient, the laminar flow hood is replaced through the upper end and the lower end, the laminar flow hood is very troublesome, is limited in space, and when the upper end and the lower end cannot be opened and replaced, the whole filter device needs to be taken out of the hood body, and the laminar flow hood is time-consuming and labor-consuming.

Disclosure of Invention

The utility model aims to provide a negative pressure laminar flow hood with a side-replaceable filter, which is used for overcoming the defects in the prior art.

The utility model relates to a negative pressure laminar flow cover capable of changing a filter on a side face, which comprises a filter box, wherein a rotating ring is fixedly arranged at the lower end of the filter box, a base is rotatably connected to the lower end of the rotating ring, four feet are fixedly arranged at the lower end of the base, friction pads are respectively arranged on the four feet of the filter box, metal protection plates are fixedly arranged on the front end face and the rear end face of the filter box, two guide sliding grooves which are symmetrical in front and rear are fixedly arranged in the filter box, L-shaped are arranged in the guide sliding grooves, electromagnetic spring blocks are fixedly arranged at the upper ends of the two guide sliding grooves, a filter is slidably connected to the upper ends of the two guide sliding grooves, an air suction component positioned at the upper side and a filter component positioned at the lower side are arranged in the filter, a flow equalizing plate is fixedly arranged at the lower ends of the two guide sliding grooves, an air outlet and an air inlet are respectively arranged at the upper end and lower end of the filter, sliding plates are respectively connected to the left end face and the right end face of the filter box, the sliding plates can be opened, the side face can be changed, and the filter box is convenient to use.

Preferably, two bilaterally symmetrical hinged plates are hinged on the upper end face of the filter box, two hinged plates are connected with a rotary disk, two guide blocks are fixedly arranged at the front end and the rear end of the rotary disk, the guide blocks on the rotary disk are in sliding connection with the hinged plates, handles are fixedly arranged on the rotary disk, an electromagnetic controller is fixedly arranged on the upper end face of the base, an electromagnetic clamping block is connected with the right end of the electromagnetic controller, a clamping groove in annular arrangement is formed in the periphery of the rotary ring, the electromagnetic clamping block can be clamped with the clamping groove in the rotary ring, the filter box can be freely rotated, the circumferential position of the sliding plate is changed, the filter can be taken out through the sliding plate under the condition of space limitation, and the filter box is convenient and fast to use, and meanwhile, the upper end of the filter box can be opened, and the filter box can be carried by the handles.

Preferably, two groups of clamping plates which are bilaterally symmetrical are hinged in the filter box, a coarse screen is arranged between the clamping plates and the metal protection plates on the same side, the coarse screen is used for carrying out preliminary filtration, and impurities with larger particles in air are filtered, so that the load of the filter can be reduced, and the replacement frequency of the filter can be reduced.

The beneficial effects of the utility model are as follows:

the side surface can be replaced without disassembling and replacing the upper end and the lower end, and the use is convenient;

the filter box can freely rotate, so that the circumferential position of the sliding plate is changed, the filter can be taken out through the sliding plate under the condition of space limitation, the filter box is convenient and quick to use, the upper end of the filter box can be opened, and the filter box can be carried by the handle to move;

preliminary filtration is carried out through the coarse filter screen, and the impurity of great granule in the filtering air is to can reduce the load of filter, and then can reduce the change frequency of filter.

Drawings

FIG. 1 is a schematic view of the appearance of the present utility model;

FIG. 2 is a schematic top view of the structure of FIG. 1 of the present utility model;

FIG. 3 is a schematic elevational view of the present utility model of FIG. 1;

FIG. 4 is a schematic side elevational view of the present utility model of FIG. 1;

FIG. 5 is a schematic view of the base of FIG. 1 according to the present utility model;

FIG. 6 is a schematic cross-sectional view of A-A of FIG. 2 in accordance with the present utility model;

FIG. 7 is an enlarged schematic view of a portion of the coarse filter screen of FIG. 6 according to the present utility model;

FIG. 8 is an enlarged view of a portion of the guide chute of FIG. 6 according to the present utility model;

in the figure:

10. a filter box; 11. a sliding plate; 12. a hinged plate; 13. a metal protection plate; 14. a base; 15. a rotating disc; 16. a handle; 17. a rotating ring; 18. an electromagnetic controller; 19. an electromagnetic clamping block; 20. a coarse filter screen; 21. a clamping plate; 22. a filter; 23. a suction assembly; 24. a filter assembly; 25. a guide chute; 26. an electromagnetic spring block; 27. a flow equalizing plate; 28. an air outlet; 29. an air inlet.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present:

example 1:

referring to fig. 1-8, a negative pressure laminar flow hood with a filter capable of being replaced laterally according to an embodiment of the present utility model comprises a filter box 10, a rotating ring 17 is fixedly arranged at the lower end of the filter box 10, a base 14 is rotatably connected to the lower end of the rotating ring 17, four feet are fixedly arranged at the lower end of the base 14, friction pads are respectively arranged on the four feet of the filter box 10, metal protection plates 13 are fixedly arranged on the front and rear end surfaces of the filter box 10, two guide sliding grooves 25 which are symmetrical front and rear are fixedly arranged in the filter box 10, the guide sliding grooves 25 are in an L-shaped arrangement, electromagnetic spring blocks 26 are fixedly arranged at the upper ends of the two guide sliding grooves 25, a filter 22 is slidably connected to the upper ends of the two guide sliding grooves 25, an air suction component 23 positioned at the upper side and a filter component 24 positioned at the lower side are arranged in the filter 22, a flow equalizing plate 27 is fixedly arranged at the lower ends of the two guide sliding grooves 25, an air outlet 28 and an air inlet 29 are respectively arranged at the upper end and lower end of the filter 22, a sliding plate 11 is connected to the left end and right end surfaces of the filter box 10, and the sliding plate 11 can be opened;

the four feet at the lower end of the base 14 are in contact with the placing surface, the metal protection plate 13 prevents external objects from interfering with the operation of the filter 22, the air suction assembly 23 in the filter 22 is electrified, external air is extracted to enter the filter 22, outside air of the filter box 10 enters the filter box 10 through holes at the metal protection plate 13, flows upwards to the air inlet 29 along the inclined plane at the upper end of the filter 22, enters the filter assembly 24 downwards through the air inlet 29, is dedusted and filtered in the filter assembly 24, dust is stored and collected in the filter assembly 24, then air flows downwards to the outside of the filter box 10 through the air outlet 28, the sliding plate 11 is opened when the filter 22 needs to be replaced, the fixed connection with the filter 22 is canceled, the filter 22 can move leftwards and rightwards along the symmetrically arranged guide grooves 25, and conversely, and the electromagnetic spring block 26 is fixedly clamped with the filter 22 under the action of spring force.

Example 2:

this embodiment differs from embodiment 1 in that: referring to fig. 2-6, two hinge plates 12 which are bilaterally symmetrical are hinged on the upper end surface of the filter box 10, a rotary disk 15 is connected between the two hinge plates 12, guide blocks are fixedly arranged at the front end and the rear end of the two rotary disks 15, the guide blocks on the rotary disk 15 are in sliding connection with the hinge plates 12, handles 16 are fixedly arranged on the two rotary disks 15, an electromagnetic controller 18 is fixedly arranged on the upper end surface of the base 14, an electromagnetic clamping block 19 is connected with the right end of the electromagnetic controller 18, a clamping groove which is annularly arranged is formed in the periphery of the rotary ring 17, and the electromagnetic clamping block 19 can be clamped with the clamping groove on the rotary ring 17;

the rotary disk 15 in fig. 2 is in an open state, a user pulls the handle 16, the hinge plate 12 can be rotated to open by taking the hinge rod as a rotation center, and the filter 22 can be taken out from above for replacement;

when a user holds the handle 16 to rotate, the handle 16 drives the rotary disk 15 to rotate, after the rotary disk 15 rotates ninety degrees, the user pulls the handle 16 again, the two hinge plates 12 cannot be opened, and the user lifts the filter box 10 through the handle 16 to carry the filter box 10 to move freely;

the electromagnetic controller 18 is controlled to be powered off through an external signal, the electromagnetic clamping block 19 contracts under the action of a spring force, the fixed connection between the rotating ring 17 and the electromagnetic clamping block 19 is canceled, a user pushes the filter box 10, and the rotating ring 17 can rotate on the base 14, so that the position of the sliding plate 11 is changed.

Example 3:

the difference between this embodiment and embodiments 1 and 2 is that: referring to fig. 6-7, two groups of clamping plates 21 which are bilaterally symmetrical are hinged in the filter box 10, and a coarse screen 20 is arranged between the clamping plates 21 on the same side and the metal protection board 13;

the user opens the hinge plate 12, and can take out the coarse filter screen 20 from the upper end of the filter box 10 for replacement by pushing the two sets of the clamping plates 21, and the coarse filter screen 20 is used for preliminary filtration.

It will be apparent to those skilled in the art that various modifications to the above embodiments may be made without departing from the general spirit and concepts of the utility model. Which fall within the scope of the present utility model. The protection scheme of the utility model is subject to the appended claims.

Claims

1. The utility model provides a negative pressure laminar flow hood of removable filter of side, includes rose box (10), its characterized in that: the lower extreme of rose box (10) has set firmly rotation ring (17), the lower extreme rotation of rotation ring (17) is connected with base (14), four footings have been set firmly on the lower extreme of base (14), all set firmly metal protection shield (13) on the front and back both ends face of rose box (10), set firmly two front and back symmetrical guide chute (25) in rose box (10), two electromagnetic spring piece (26) have all been set firmly to the upper end of guide chute (25), two the upper end sliding connection of guide chute (25) has filter (22), be equipped with in filter (22) and be located filter assembly (24) of downside that are located the upside, gas outlet (28) and air inlet (29) have been seted up respectively at the upper and lower both ends of filter (22), all be connected with on the left and right sides terminal surface of rose box (10) slide plate (11), slide plate (11) can open.

2. The negative pressure laminar flow hood of a side-replaceable filter of claim 1, wherein: the novel filter box is characterized in that two bilaterally symmetrical hinge plates (12) are hinged to the upper end face of the filter box (10), a rotary disc (15) is connected between the hinge plates (12), guide blocks are fixedly arranged at the front end and the rear end of the rotary disc (15), the guide blocks on the rotary disc (15) are in sliding connection with the hinge plates (12), handles (16) are fixedly arranged on the rotary disc (15), an electromagnetic controller (18) is fixedly arranged on the upper end face of the base (14), an electromagnetic clamping block (19) is connected to the right end of the electromagnetic controller (18), a clamping groove which is annularly arranged is formed in the periphery of the rotary ring (17), and the electromagnetic clamping block (19) can be connected with the clamping groove on the rotary ring (17) in a clamping mode.

3. The negative pressure laminar flow hood of a side-replaceable filter of claim 1, wherein: two groups of clamping plates (21) which are bilaterally symmetrical are hinged in the filter box (10), and a coarse screen (20) is arranged between the clamping plates (21) and the metal protection plate (13) on the same side.

4. The negative pressure laminar flow hood of a side-replaceable filter of claim 1, wherein: the guide sliding grooves (25) are L-shaped, flow equalizing plates (27) are fixedly arranged at the lower ends of the two guide sliding grooves (25), and friction pads are arranged on four feet of the filter box (10).