CN219161429U

CN219161429U - Negative pressure weighing cover

Info

Publication number: CN219161429U
Application number: CN202223604525.5U
Authority: CN
Inventors: 陈海平; 高凤强
Original assignee: Jinan Health Fi Purification Technology Co ltd
Current assignee: Jinan Health Fi Purification Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-09
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a negative pressure weighing cover, which comprises a working cover body, a filtering cover arranged at the upper part and the rear part of the working cover body and a supporting table arranged at the lower part of the working cover body, wherein the working cover body comprises an operation table at the bottom, a left coaming plate, a right coaming plate and an air inlet plate, wherein the left coaming plate and the right coaming plate are arranged at the left side and the right side of the operation table, the air inlet plate is arranged at the rear side of the operation table, an opening and a sealing plate which can slide up and down to open or close the opening are arranged on the left coaming plate, a connecting cylinder communicated with the opening is detachably arranged at the outer side of the left coaming plate, and the other end of the connecting cylinder is connected with a recovery device; through establishing trompil, upper and lower gliding shrouding and connecting cylinder on the coaming of left to can be with the discarded object that produces in the operation process directly throw or fall into recovery unit through the connecting cylinder in, not only the operation is more convenient, reduces cross contamination, can avoid taking out the discarded object after moreover, the dust that its produced causes the influence to operating personnel health.

Description

Negative pressure weighing cover

Technical Field

The utility model belongs to the technical field of weighing hoods, and particularly relates to a negative pressure weighing hood.

Background

In the air purifying equipment, the negative pressure weighing cover is a special working chamber which is specially used for sampling, weighing, analyzing and other industries, can control dust in a working area, namely the dust is not diffused outside an operation area, ensures that an operator does not inhale operated objects, and is special purifying equipment for controlling dust to fly. The indoor air is pressed into the static pressure box through the primary filter and the medium-efficiency filter by the centrifugal fan, and is blown out from the three-way air outlet surface of the air flow diffusion air supply after passing through the high-efficiency filter, and clean air flows through the working area at uniform section wind speed, so that a high clean working environment is formed. The operating area of the weighing hood is positioned in a negative pressure state, also called a negative pressure weighing hood.

In the prior art, through searching, the utility model patent with the Chinese patent publication number of CN206818303U discloses an inner-layer protection negative pressure weighing cover, which mainly comprises a cover wall body (a), an upper box body (b), a weighing platform (c), a touch display screen (d) and other parts as shown in figure 1.

The utility model patent with the Chinese patent publication number of CN209541886U discloses a high-efficiency negative pressure type weighing cover, which mainly comprises a main body (e), wherein a filter cover (f) is arranged at the upper part of the main body (e), and an operation table top (g) is arranged at the middle part of the main body (e).

In the prior art, when an operator analyzes and operates the operation materials on the weighing platform, namely the operation table surface, the operation area of the weighing cover needs to be taken out of the operation area of the weighing cover and discarded and poured into the garbage can or the waste bucket, so that the operation is inconvenient, certain cross contamination is easy to generate, the waste is taken out of the operation area, dust generated by the waste is easy to be inhaled by the operator, and the health of the operator is influenced, and therefore, improvement is needed.

Disclosure of Invention

In view of the defects and drawbacks of the prior art, the utility model aims to provide a negative pressure weighing cover, which solves the problems that when an operator performs analysis operation on an operation material on a weighing table, namely an operation table surface, waste or waste generated in the continuous operation process is required to be taken out of an operation area of the weighing cover and discarded and poured into a garbage can or a waste bucket, the operation is inconvenient, certain cross contamination is possibly generated, and dust generated by the waste is influenced on the health of the operator after the waste is taken out.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a negative pressure weighing cover, includes the work cover body, sets up the filter mantle and the brace table of setting in work cover body lower part in work cover body upper portion and rear portion, the work cover body including the bottom set up at the operation panel on the brace table, set up left bounding wall, right bounding wall and the air inlet board of setting at the operation panel rear side in the operation panel left and right sides, the cross-sectional shape of left bounding wall and right bounding wall be right trapezoid, the inclined plane upside of left bounding wall and right bounding wall is provided with openable transparent flip, set up a trompil and a slidable make the shrouding that the trompil opened or closed from top to bottom on the left bounding wall, left bounding wall outside detachable be equipped with one with the communicating connecting cylinder of trompil, the connecting cylinder other end is connected with recovery unit.

As a further improvement of the utility model, the sealing plate is round, two sliding plates are respectively arranged on the front side and the rear side of the sealing plate, a sliding groove which is in sliding fit with the sliding block is arranged on the left coaming at the position corresponding to the sliding plate, and the sealing plate is in sliding connection with the sliding groove through the sliding plate.

As a further improvement of the utility model, an iron block is arranged on the upper side of the sealing plate, a magnet capable of attracting the iron block is arranged on the left coaming, and the vertical distance from the magnet to the top of the opening is larger than the diameter of the sealing plate.

As a further improvement of the utility model, the right side of the sealing plate is provided with a handle.

As a further improvement of the utility model, the connecting cylinder is arranged obliquely from right to left on the outer side of the left coaming.

As a further improvement of the utility model, a flange connecting plate is arranged on one side of the connecting cylinder, which is close to the left coaming, and the connecting cylinder is connected with the left coaming through bolts through the flange connecting plate.

As a further improvement of the utility model, a plurality of rectangular vent holes are formed on the air inlet plate, and the vent holes which are adjacent up and down are staggered in turn in the left-right direction.

As a further improvement of the utility model, the bottom of the supporting table is provided with at least four universal wheels.

As a further improvement of the utility model, the bottom of the supporting table is provided with four supporting feet which are in threaded connection with the supporting table.

The utility model has the beneficial effects that:

1. through being equipped with the trompil on the left bounding wall to be equipped with a slidable from top to bottom in trompil department and make the open shrouding of trompil open or close, a connecting cylinder is connected in trompil department in the left bounding wall outside, the connecting cylinder other end is connected with recovery unit, thereby when operating personnel handles or when analyzing the material on the operation panel, can directly throw or pour recovery unit from the trompil to the discarded object of this in-process production, after pouring, can the downwardly sliding shrouding, make the shrouding seal the trompil, avoid too much cross contamination, compared with the structure in the prior art that can only take out the discarded object outside garbage bin or recovery unit from the work cover body with the discarded object of waste, not only convenient operation reduces cross contamination, can avoid taking out the waste after, the dust that its produced causes the health of operating personnel.

2. Through setting up the iron plate in the shrouding upside, be equipped with a magnet that can hold the iron plate on the coaming of left to when upwards sliding the shrouding, the shrouding is fixed under the magnetic attraction effect of magnet, prevents to fall.

3. Through setting up the handle, be convenient for hold in order to slide the shrouding from top to bottom.

4. By arranging the connecting cylinder in a downward inclined manner from right to left, waste is facilitated to flow into the recovery device from one end of the connecting cylinder, which is close to the opening.

5. Through setting up the universal wheel, be convenient for remove this device, and set up the supporting foot, be convenient for at this device at subaerial support fixedly, avoid only establishing the universal wheel, gliding problem easily.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic diagram of a second prior art structure;

FIG. 3 is a schematic diagram of a first embodiment of the present utility model;

FIG. 4 is an enlarged view of FIG. 3 at A;

FIG. 5 is a second schematic diagram of the structure of the present utility model;

in the figure: 1. a filter cover; 2. a working cover body; 21. an operation table; 22. a left coaming; 23. a right coaming; 24. an air inlet plate; 241. a vent hole; 25. a transparent flip cover; 26. opening holes; 27. a sealing plate; 28. a slide plate; 29. a chute; 3. a support table; 4. a connecting cylinder; 5. a recovery device; 6. iron blocks; 7. a magnet; 8. a handle; 9. a universal wheel; 10. supporting feet; 11. and (5) connecting the flange with the plate.

Detailed Description

The utility model is described in further detail below with reference to fig. 3-5. For the sake of clarity, only the structures related to the utility model are shown in the drawings.

For convenience of description, the coordinate system is defined as shown in fig. 3, and the left-right direction is a transverse direction, the front-rear direction is a longitudinal direction, and the up-down direction is a vertical direction.

The embodiment of the utility model discloses a negative pressure weighing cover. Referring to fig. 3 and 5, a negative pressure weighing hood comprises a working hood body 2, a filtering hood 1 arranged at the upper part and the rear part of the working hood body 2, and a supporting table 3 arranged at the lower part of the working hood body 2, wherein filtering pieces such as a primary filter, a middle-effect filter, a fan, high-efficiency filter and the like which are conventionally configured in the weighing hood are arranged in the filtering hood 1, and the device is not improved in the conventional arrangement in the prior art, so that the device is not repeated. The supporting bench 3 bottom be equipped with four universal wheels 9, be convenient for remove this device, in addition, supporting bench 3 bottom be equipped with four supporting feet 10, supporting feet 10 and supporting bench 3 threaded connection to height-adjusting, supporting feet 10's setting is convenient for at this device subaerial fixed, avoids only establishing universal wheel 9, the easy gliding problem.

As shown in fig. 3 and 5, the working cover 2 includes an operation table 21 with a bottom disposed on the support table 3, a left enclosing plate 22, a right enclosing plate 23 disposed on left and right sides of the operation table 21, and an air inlet plate 24 disposed on a rear side of the operation table 21, an operation area is formed in a middle portion of the working cover 2, a plurality of rectangular ventilation holes 241 are formed in the air inlet plate 24, the ventilation holes 241 adjacent to each other vertically are staggered in the left-right direction in sequence, exhaust gas or dust generated by operating materials in the operation area enters the filter cover 1 on the rear side of the air inlet plate 24 from the ventilation holes 241, and after being filtered by a filter element in the filter cover, the exhaust gas or dust enters the operation area from the bottom plate at the upper end of the filter cover 1, thereby maintaining air cleanliness of the operation area. The cross-sectional shape of left bounding wall 22 and right bounding wall 23 all be right trapezoid, the inclined plane upside of left bounding wall 22 and right bounding wall 23 is provided with openable transparent flip 25 to be convenient for observe and operation, set up a trompil 26 and a slidable from top to bottom and make the open shrouding 27 of trompil 26 open or close on the left bounding wall 22, the outside detachable of left bounding wall 22 is equipped with a connecting cylinder 4 that communicates with each other with trompil 26, the connecting cylinder 4 other end is connected with recovery unit 5 or recycling bin, when setting up, one side that connecting cylinder 4 be close to left bounding wall 22 be provided with flange link plate 11, connecting cylinder 4 pass through flange link plate 11 and left bounding wall 22 through bolted connection. In addition, the connecting cylinder 4 is arranged at the outer side of the left enclosing plate 22 from right to left in a downward inclined manner, so that waste can flow from one end of the connecting cylinder 4 near the opening 26 into the recovery device 5.

As shown in fig. 4, the sealing plate 27 is circular, the right side of the sealing plate 27 is provided with a handle 8 which is convenient to hold, two sides of the front and rear sides of the sealing plate 27 are respectively provided with a sliding plate 28, the position on the left coaming 22 corresponding to the sliding plate 28 is provided with a sliding groove 29 which is in sliding fit with the sliding block, and the sealing plate 27 is in sliding connection with the sliding groove 29 through the sliding plate 28. In addition, an iron block 6 is arranged on the upper side of the sealing plate 27, a magnet 7 capable of attracting the iron block 6 is arranged on the left enclosing plate 22, and the vertical distance from the magnet 7 to the top of the opening 26 is larger than the diameter of the sealing plate 27, so that when the sealing plate 27 slides upwards, the sealing plate 27 is fixed under the magnetic attraction of the magnet 7 to prevent falling, and at the moment, the sealing plate 27 opens the opening 26 so as to discard wastes.

According to the utility model, the opening 26 is formed in the left coaming 22, the sealing plate 27 capable of sliding up and down to enable the opening 26 to be opened or closed is arranged at the opening 26, the connecting cylinder 4 is connected to the outer side of the left coaming 22 at the opening 26, and the other end of the connecting cylinder 4 is connected with the recovery device 5, so that when an operator processes or analyzes materials on the operation table 21, wastes produced in the process can be directly thrown or poured into the recovery device 5 from the opening 26 through the connecting cylinder 4, after pouring is finished, the sealing plate 27 can be slid downwards, the opening 26 is sealed by the sealing plate 27, so that excessive cross contamination is avoided.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. It should be understood that the detailed description is presented for purposes of understanding only and is not intended to limit the utility model to all other embodiments that may be obtained by one skilled in the art without making any inventive effort.

Claims

1. The utility model provides a negative pressure weighs cover, includes the work cover body, sets up the filter mantle and the brace table of setting in work cover body lower part in work cover body upper portion and rear portion, the work cover body including the bottom set up the operation panel on the brace table, set up left bounding wall, the right bounding wall and the air inlet board of setting at the operation panel rear side in the left and right sides of operation panel, its characterized in that: the cross-sectional shape of left bounding wall and right bounding wall be right trapezoid, the inclined plane upside of left bounding wall and right bounding wall is provided with openable transparent flip, has offered a trompil and a slidable from top to bottom and makes the open shrouding of trompil open or close on the left bounding wall, left bounding wall outside detachable be equipped with one with the communicating connecting cylinder of trompil, the connecting cylinder other end is connected with recovery unit.

2. A negative pressure weighing hood according to claim 1, characterized in that: the sealing plate is circular, a sliding plate is respectively arranged on the front side and the rear side of the sealing plate, a sliding groove which is in sliding fit with the sliding block is respectively arranged on the left coaming at the position corresponding to the sliding plate, and the sealing plate is in sliding connection with the sliding groove through the sliding plate.

3. A negative pressure weighing hood according to claim 2, characterized in that: the upper side of the sealing plate is provided with an iron block, the left coaming is provided with a magnet capable of attracting the iron block, and the vertical distance from the magnet to the top of the opening is larger than the diameter of the sealing plate.

4. A negative pressure weighing hood according to claim 3, characterized in that: the right side of the sealing plate is provided with a handle.

5. A negative pressure weighing hood according to claim 1, characterized in that: the connecting cylinder is obliquely arranged from right to left on the outer side of the left enclosing plate.

6. A negative pressure weighing hood according to claim 5, characterized in that: one side of the connecting cylinder, which is close to the left coaming, is provided with a flange connecting plate, and the connecting cylinder is connected with the left coaming through bolts through the flange connecting plate.

7. A negative pressure weighing hood according to any one of claims 1-6, characterized in that: the air inlet plate is provided with a plurality of rectangular vent holes, and the vent holes adjacent up and down are staggered in turn in the left-right direction.

8. A negative pressure weighing hood according to any one of claims 1-6, characterized in that: the bottom of the supporting table is at least provided with four universal wheels.

9. A negative pressure weighing hood according to claim 8, characterized in that: the bottom of the supporting table is provided with four supporting feet which are in threaded connection with the supporting table.