Special exhaust device for dehydrator

Abstract

The utility model discloses a special exhaust device for a dehydrator, which comprises a vertically arranged air guide pipe, an air collecting hood and a curtain, the upper end of the air guide pipe is used for being fixed on a ceiling, the lower end of the air guide pipe is detachably connected with the upper end of the air collecting hood, the lower end of the air collecting hood is provided with an annular sliding rail, the sliding rail is connected with the curtain in a sliding manner, and the curtain is connected with the air guide pipe in a sliding manner. An air draft system is further arranged in the air guide pipe. The curtain and the gas collecting hood are connected through the sliding rail to define a space capable of containing the dehydrator, harmful gas is exhausted through the exhaust system, use can be flexible, space is not occupied, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of medical examination, in particular to a special exhaust device for a dehydrator. Background Art

[0002] The current pathological tissue preparation process basically uses a dehydrator to fix the slides. However, the use of a dehydrator is accompanied by the use of a large number of chemical reagents. During the experiment, a large amount of formaldehyde and xylene gas will be generated to pollute the ambient air. Long-term inhalation of such gases will affect the health of the experimenters, and the ambient air does not meet the national standards. Therefore, in laboratories using dehydrators, the harmful gases that may be produced by the equipment must be controlled.

[0003] At present, the existing technology for controlling the harmful gases produced by dehydrators is mainly a full-body vertical dehydrator fume hood, which has the following main disadvantages: ① The fume hood body is large and occupies too much area, and is only suitable for placement in large flat spaces; ② The door frame of the fume hood is a hand-pull outward-opening type with a limited opening angle, which is not convenient for personnel to perform experimental operations; ③ The cost of the fume hood body is relatively high, and in addition to the exhaust system, a special cabinet body must be customized at a high price, and there are many inconveniences in transportation, installation and disassembly. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a special exhaust device for a dehydrator, which connects a curtain and an air collecting hood through a slide rail to form a space that can accommodate the dehydrator, and uses an exhaust system to exhaust harmful gases. It can be used flexibly, does not occupy space, and has low cost.

[0005] The utility model provides a technical solution to the above-mentioned technical problems as follows: a dehydrator-specific exhaust device, comprising a vertically arranged air duct, an air collecting hood and a curtain, wherein the upper end of the air duct is used to be fixed on the ceiling, and the lower end thereof is detachably connected to the upper end of the air collecting hood, an annular slide rail is provided at the lower end of the air collecting hood, and the curtain is slidably connected to the slide rail, and an exhaust system is also provided in the air duct.

[0006] The beneficial effects of adopting the above technical solution are:

[0007] The curtain and the gas collecting hood are connected by sliding rails to form a space that can accommodate the dehydrator, which is convenient for staff to operate. The harmful gas is discharged by the exhaust system. It can be used flexibly, does not take up space, and has low cost.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the exhaust system is an exhaust fan, and an exhaust port of the exhaust fan passes through the air duct.

[0010] The beneficial effect of adopting the above further solution is that harmful gases can be quickly discharged by using the exhaust fan.

[0011] Furthermore, a sliding buckle slidably connected to the sliding rail is provided at the upper end of the curtain, and the opening and closing sides of the curtain are connected by magnetic adsorption.

[0012] The beneficial effects of adopting the above further solution are that the curtain is easy to open and close, easy to operate and low in cost.

[0013] Furthermore, strong magnetic strips are provided on both sides of the opening and closing of the curtain.

[0014] The beneficial effect of adopting the above further solution is that the strong magnetic adhesive strip facilitates improving the sealing performance of the curtain.

[0015] Furthermore, the curtain is made of transparent material.

[0016] The beneficial effect of adopting the above further solution is that it is easy to observe the operation status of internal staff.

[0017] Furthermore, a flexible counterweight plate is connected to the lower end of the curtain.

[0018] The beneficial effect of adopting the above further solution is to increase the verticality and fixation degree of the curtain.

[0019] Furthermore, a filtering structure is provided in the air duct, and the filtering structure is located vertically below the air exhaust system.

[0020] The beneficial effect of adopting the above further scheme is that the filtering mechanism can initially filter the air.

[0021] Furthermore, the filtering structure is a filter net.

[0022] The beneficial effects of adopting the above further solution are simple structure, convenient installation and good filtering effect.

[0023] Furthermore, an adjustment structure capable of adjusting the height of the air collecting hood is provided between the air guide pipe and the upper end of the air collecting hood.

[0024] The beneficial effect of adopting the above further solution is that it is easy to adjust the height of the air collecting hood and the curtain, and it is convenient to adapt to different types of dehydrators.

[0025] Furthermore, the adjustment structure includes a first positioning hole and a second positioning hole, there are multiple first positioning holes, and they are evenly distributed in the upper part of the air collecting hood along the vertical direction, there are multiple second positioning holes, and they are evenly distributed in the lower part of the air duct along the vertical direction, the multiple first positioning holes and the multiple second positioning holes are arranged in corresponding positions, and the first positioning holes and the corresponding second positioning holes are locked by screws.

[0026] The beneficial effect of adopting the above further solution is that it is easy to adjust the overall height and has a good positioning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the filter screen of the present invention.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Air duct; 2. Air collecting hood; 3. Curtain; 4. Mounting hole; 5. Counterweight plate; 6. Rubber strip; 7. Exhaust port; 8. First positioning hole; 9. Second positioning hole; 10. Filter frame; 11. Filter; 12. Handle; 13. Sealing strip. DETAILED DESCRIPTION

[0031] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0032] Embodiment 1:

[0033] like Figure 1-2 As shown, in this embodiment, a special exhaust device for a dehydrator includes a vertically arranged air duct 1, an air collecting hood 2 and a curtain 3. The upper end of the air duct 1 is used to be fixed on the ceiling, and the lower end thereof is detachably connected to the upper end of the air collecting hood 2. The lower end of the air collecting hood 2 is provided with an annular slide rail, and the curtain 3 is slidably connected to the slide rail. An exhaust system is also provided in the air duct 1.

[0034] The beneficial effects of this embodiment are: a space that can accommodate the dehydrator is enclosed by the curtain 3 and the air collecting hood 2, and the curtain 3 is slidably set on the air collecting hood 2, which is convenient for staff to operate, and the exhaust system is used to discharge harmful gases from the air duct 1. It can be used flexibly, does not occupy space, and has low cost.

[0035] Among them, Figure 1 As shown, the upper end of the air duct 1 is a closed end and is fixed to the ceiling by bolts. The air duct 1 can be a square or circular structure and can be made of stainless steel.

[0036] Among them, the air collecting hood 2 is a quadrangular prism that is narrow at the top and wide at the bottom. A square connecting portion extends from the upper end of the air collecting hood 2 to match the lower end of the air duct 1. A circular mounting portion extends outward from the lower end of the air collecting hood 2. A ring-shaped slide rail is provided at the bottom of the mounting portion, which can be made of stainless steel.

[0037] Example 2

[0038] Preferably, on the basis of Embodiment 1, the exhaust system is an exhaust fan, and the exhaust port 7 of the exhaust fan passes through the air duct 1.

[0039] The beneficial effect of this embodiment is that harmful gases can be quickly discharged by using the exhaust fan.

[0040] Furthermore, the exhaust fan is fixed in the air duct 1 by means of bolts, and the exhaust port of the exhaust fan is vertically downward, facing the air collecting hood 2.

[0041] Example 3

[0042] Preferably, on the basis of Embodiment 1-2, the upper end of the curtain 3 is provided with a sliding buckle slidably connected to the sliding rail, and the opening and closing sides of the curtain 3 are connected by magnetic adsorption.

[0043] The beneficial effects of this embodiment are that the curtain 3 is easy to open and close, easy to operate, and low in cost.

[0044] Example 4

[0045] Preferably, on the basis of Embodiment 3, strong magnetic strips 6 are respectively provided on both sides of the opening and closing of the curtain 3 .

[0046] The beneficial effect of this embodiment is that the strong magnetic rubber strip 6 facilitates improving the sealing performance of the curtain 3.

[0047] An alternative to the above-mentioned embodiment 3 is that the opening and closing sides of the curtain 3 are bonded by Velcro or connected by buttons.

[0048] Example 5

[0049] Preferably, based on embodiments 1-4, the curtain 3 is made of a transparent material.

[0050] The beneficial effect of this embodiment is that it is easy to observe the operation status of the internal staff.

[0051] Furthermore, the curtain 3 can be made of transparent PVC material, which has low cost and good transparency.

[0052] Example 6

[0053] Preferably, based on embodiments 1-5, a flexible counterweight plate 5 is connected to the lower end of the curtain 3 .

[0054] The beneficial effect of this embodiment is to increase the verticality and fixation degree of the curtain 3.

[0055] Furthermore, a hair dryer may be provided on the outside of the device, and fresh air from the outside may be blown into the experimental space by the hair dryer, thereby promoting air circulation in the experimental space and improving safety.

[0056] It should be noted that there is a certain gap between the bottom of the counterweight plate 5 and the ground. By increasing the internal exhaust, an air pressure difference between the inside and the outside is formed to prevent the gas emitted by the equipment from overflowing. The distance from the ground is calculated according to the wind rate of the exhaust fan.

[0057] Example 7

[0058] Preferably, on the basis of Embodiments 1-6, a filtering structure is provided in the air duct 1, and the filtering structure is located vertically below the exhaust system.

[0059] The beneficial effect of this embodiment is that the filtering mechanism can preliminarily filter the air.

[0060] Furthermore, a purification system may be connected to the outlet of the exhaust port to purify harmful gases.

[0061] Example 8

[0062] Preferably, based on Example 7, the filtering structure is a filter net 11.

[0063] The beneficial effects of this embodiment are: simple structure, convenient installation and good filtering effect.

[0064] On the basis of the above embodiment, the filter 11 is specifically arranged on the filter frame 10, and a mounting hole 4 is opened on the side wall of the air duct 1. The filter frame 10 is installed in the air duct 1 through the mounting hole 4. The filter 11 is an activated carbon filter. A handle 12 is provided on one end of the filter frame 10 close to the mounting hole 4 for easy operation; and a sealing strip 13 is surrounded on all sides of the filter frame 10 to ensure the sealing performance.

[0065] Example 9

[0066] Preferably, on the basis of Embodiments 1-8, an adjustment structure capable of adjusting the height of the air collecting hood 2 is provided between the air duct 1 and the upper end of the air collecting hood 2 .

[0067] The beneficial effects of this embodiment are: it is convenient to adjust the heights of the air collecting hood 2 and the curtain 3, and it is convenient to adapt to different types of dehydrators.

[0068] Example 10

[0069] Preferably, on the basis of Example 9, the adjustment structure includes a first positioning hole 8 and a second positioning hole 9, the number of the first positioning holes 8 is multiple, and they are evenly distributed in the upper part of the air collecting hood 2 in the vertical direction, the number of the second positioning holes 9 is multiple, and they are evenly distributed in the lower part of the air duct 1 in the vertical direction, the multiple first positioning holes 8 and the multiple second positioning holes 9 are arranged in corresponding positions, and the first positioning holes 8 and the corresponding second positioning holes 9 are locked by screws.

[0070] The beneficial effect of this embodiment is that when the height of the air collecting hood 2 and the curtain 3 needs to be adjusted, the screws are loosened manually, and then the height is adjusted up and down, and part of the first positioning hole 8 and the second positioning hole 9 are aligned, and finally the screws are tightened.

[0071] An alternative to the above-mentioned embodiment 9 is that the adjustment structure may be a buckle structure, specifically, a buckle is provided in the upper part of the air collecting hood 2, and a lower outer wall of the air duct 1 is provided with a plurality of bayonet holes spaced apart along the height direction.

[0072] Working principle:

[0073] When in use, the air duct 1 is connected to the air collecting hood 2 to form an air collecting device; an adjustment structure is set at the connection between the air duct 1 and the air collecting hood 2 to realize the telescopic adjustment of the air collecting hood 2; a filter screen 11 is set in the middle of the air duct 1 for preliminary air filtration; an electric control air valve is set at the upper air outlet of the air collecting hood 2 to realize the adjustment and control of the exhaust wind speed; a customized circular track is arranged around the lower hood opening of the air collecting hood 2, and a transparent curtain can be connected to achieve 360° sliding, and the opening is designed with a strong magnetic soft rubber strip 6 to achieve a closed connection, which is convenient for personnel to perform internal operations; a configuration plate 6 is designed at the bottom end of the transparent curtain to increase the verticality and fixation of the transparent curtain to avoid excessive exhaust and inward contraction; the bottom is hollowed out to form an internal and external air pressure difference by increasing the internal exhaust to prevent the gas emitted by the equipment from overflowing, and the distance from the ground is calculated according to the exhaust wind rate.

[0074] The beneficial effects of the utility model are:

[0075] A regional sealed and adjustable exhaust device is formed by adding a circular track PVC transparent curtain and a retractable air collecting hood 2; utilizing the characteristics of the PVC transparent curtain that it is sealed and retractable and does not occupy space, a regional exhaust hood device that can be flexibly used and has a low cost is designed.

[0076] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inside", "outside", "peripheral", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred system or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0077] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0078] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A special exhaust device for a dehydrator, characterized in that: The invention comprises a vertically arranged air duct (1), an air collecting hood (2) and a curtain (3); the upper end of the air duct (1) is used to be fixed on the ceiling, and the lower end thereof is detachably connected to the upper end of the air collecting hood (2); the lower end of the air collecting hood (2) is provided with an annular slide rail, and the curtain (3) is slidably connected to the slide rail; and an exhaust system is also provided in the air duct (1).

2. The exhaust device for a dehydrator according to claim 1, characterized in that: The exhaust system is an exhaust fan, and the exhaust port (7) of the exhaust fan passes through the air guide pipe (1).

3. The exhaust device for a dehydrator according to claim 1, characterized in that: The upper end of the curtain (3) is provided with a sliding buckle which is slidably connected to the sliding rail, and the opening and closing sides of the curtain (3) are connected by magnetic adsorption.

4. The exhaust device for a dehydrator according to claim 3, characterized in that: Strong magnetic adhesive strips (6) are respectively provided on both sides of the opening and closing of the curtain (3).

5. The exhaust device for a dehydrator according to claim 1, characterized in that: The curtain (3) is made of a transparent material.

6. The exhaust device for a dehydrator according to claim 1, characterized in that: The lower end of the curtain (3) is connected to a flexible counterweight plate (5).

7. The exhaust device for a dehydrator according to claim 1, characterized in that: A filtering structure is provided in the air guide duct (1), and the filtering structure is located vertically below the air exhaust system.

8. The exhaust device for a dehydrator according to claim 7, characterized in that: The filtering structure is a filtering net (11).

9. A dehydrator-specific exhaust device according to any one of claims 1 to 8, characterized in that: An adjustment structure capable of adjusting the height of the air collecting hood (2) is provided between the air guide pipe (1) and the upper end of the air collecting hood (2).

10. The exhaust device for a dehydrator according to claim 9, characterized in that: The adjustment structure comprises a first positioning hole (8) and a second positioning hole (9); there are a plurality of first positioning holes (8) which are evenly distributed in the upper part of the air collecting hood (2) in the vertical direction; there are a plurality of second positioning holes (9) which are evenly distributed in the lower part of the air duct (1) in the vertical direction; the plurality of first positioning holes (8) and the plurality of second positioning holes (9) are arranged in corresponding positions; the first positioning holes (8) and the corresponding second positioning holes (9) are locked by screws.

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