Laboratory ventilation device capable of reducing dust entering amount

Abstract

The utility model relates to a laboratory ventilation device capable of reducing dust entering amount, which comprises an assembling sleeve, an assembling groove is arranged on the inner side of the assembling sleeve, and a first filter plate, a second filter plate and a third filter plate are arranged in the assembling groove; a fixing rod is arranged in the filter plate, an installation thread is arranged on the outer side of the fixing rod, a fixing disc is in threaded connection with the installation thread, a top plate is arranged on the assembly sleeve, a limiting sleeve is installed on the top plate, a ventilation disc is installed at the bottom of the assembly sleeve, and a ventilation device is arranged in the ventilation disc. According to the laboratory ventilation device capable of reducing the dust entering amount, mounting threads on the outer side of a fixing rod are in threaded connection with a first filter plate, a second filter plate and a third filter plate, fixing is achieved through a fixing disc, then the filter plates are sequentially placed into assembling grooves in an assembling sleeve, a top plate is covered, and a limiting sleeve of the top plate is clamped to the top of the fixing rod; the fixing and the limiting of the filtering device are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory ventilation devices, and specifically relates to a laboratory ventilation device for reducing the amount of dust entering. Background Technique

[0002] Ventilation, also known as air change, is to send enough fresh air into the indoor space by mechanical or natural methods, and at the same time discharge the dirty air that does not meet the sanitary requirements in the room, so that the indoor air meets the sanitary requirements and the needs of the production process; all the facilities for completing ventilation work in buildings are collectively called ventilation equipment.

[0003] The ventilation device is used for the air circulation of the indoor space to improve the air quality. However, the existing ventilation devices have problems such as small ventilation volume, large amount of dust entering, easy blockage of the pipe body, reduction of the service life of the overall ventilation device, and thus increase the use cost of the equipment. The commonly used ventilation devices are cumbersome to install and do not have an effective filtering effect inside, and cannot meet the use requirements of the laboratory. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a laboratory ventilation device for reducing the amount of dust entering, which has the advantages of small and adjustable amount of dust entering and having a filtering effect inside, and solves the problems of small ventilation volume, large amount of dust entering, easy blockage of the pipe body, and reduction of the service life of the overall ventilation device.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: a laboratory ventilation device for reducing the amount of dust entering, including a fitting sleeve, an assembly groove is opened inside the fitting sleeve, and a first filter plate, a second filter plate and a third filter plate are installed in the assembly groove;

[0008] A fixing rod is arranged in the filter plate, an installation screw sleeve is arranged on the outer side of the fixing rod, a fixing disc is threadedly connected to the installation screw sleeve, a top plate is arranged on the fitting sleeve, a limiting sleeve is installed on the top plate, a ventilation disc is installed at the bottom of the fitting sleeve, and a ventilation device is arranged in the ventilation disc.

[0009] Further, the ventilation device includes a bottom flow dividing strip and an upper flow dividing strip arranged inside the ventilation disc, a filter cover is connected to the outside of the ventilation disc, and a dust-proof sheet is arranged in the filter cover.

[0010] Further, the inner side of the fitting sleeve is funnel-shaped from top to bottom, and the assembly groove is opened in a stepped shape from top to bottom inside the fitting sleeve.

[0011] Further, assembly holes are provided in the central parts of the first filter plate, the second filter plate and the third filter plate. Thread grooves are arranged inside the assembly holes. The first filter plate, the second filter plate and the third filter plate are threadedly connected to the mounting sleeve through the thread grooves. Fixed threads are arranged inside the fixed disk. The fixed disk is threadedly connected to the mounting sleeve through the fixed threads to fix the first filter plate, the second filter plate and the third filter plate.

[0012] Further, a support plate is fixed inside the fitting sleeve. The support plate is used to support the bottom of the fixed rod. The top of the fixed rod is clamped in the limit sleeve.

[0013] Further, both the bottom flow divider and the upper flow divider are V-shaped plates, and the two flow divider plates are distributed in a vertical cross shape.

[0014] Further, mounting threads are provided on the outer side of the ventilation disk. Thread grooves adapted to the mounting threads are provided inside the filter cover. The filter cover is threadedly connected to the ventilation disk through the thread grooves.

[0015] Further, ventilation holes are provided in the filter cover. The dust-proof sheet is fixedly installed in the filter cover through the ventilation holes.

[0016] Further, the ventilation disk is funnel-shaped.

[0017] Further, combined threads are provided on the outer side of the fitting sleeve. The fitting sleeve is connected to the ventilation plate through the combined threads.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0020] 1. For the laboratory ventilation device that reduces the amount of dust entering, the mounting sleeve on the outer side of the fixed rod is threadedly connected to the first filter plate, the second filter plate and the third filter plate, and is fixed through the fixed disk. Then, they are sequentially placed in the assembly grooves in the fitting sleeve, the top plate is covered, and its limit sleeve is clamped to the top of the fixed rod to realize the fixation and limitation of the filter device.

[0021] 2. For the laboratory ventilation device that reduces the amount of dust entering, the dust-proof sheet is fixed by the threaded connection between the filter cover and the ventilation disk. Its bottom flow divider and upper flow divider can effectively reduce the air flow rate, so as to reduce the amount of dust entering. Description of the Drawings

[0022] Figure 1 is a three-dimensional view of the structure of the present utility model;

[0023] Figure 2 is a cross-sectional view of the structure of the present utility model;

[0024] Figure 3 Stereogram of the structural fixing rod of the present utility model;

[0025] Figure 4 Stereogram of the second filter plate of the structure of the present utility model.

[0026] In the figure: 1, fitting sleeve; 2, assembly groove; 3, fixing rod; 4, mounting nut; 5, first filter plate; 6, second filter plate; 7, third filter plate; 8, fixing disc; 9, top plate; 10, limiting sleeve; 11, ventilation disc; 12, bottom flow divider; 13, upper flow divider; 14, filter cover; 15, dust-proof sheet. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1-4 , a laboratory ventilation device for reducing the amount of dust entering in this embodiment, including a fitting sleeve 1, an assembly groove 2 is opened inside the fitting sleeve 1, and a first filter plate 5, a second filter plate 6 and a third filter plate 7 are installed in the assembly groove 2;

[0029] A fixing rod 3 is provided in the filter plate, a mounting nut 4 is provided on the outside of the fixing rod 3, a fixing disc 8 is threadedly connected to the mounting nut 4, a top plate 9 is provided on the fitting sleeve 1, a limiting sleeve 10 is installed on the top plate 9, and a ventilation disc 11 is installed at the bottom of the fitting sleeve 1, and a ventilation device is provided in the ventilation disc 11.

[0030] Among them, the inner side of the fitting sleeve 1 is in a funnel shape from top to bottom, and the assembly groove 2 is opened in a stepped shape from top to bottom on the inner side of the fitting sleeve 1. Assembly holes are opened in the central parts of the first filter plate 5, the second filter plate 6 and the third filter plate 7, and threaded grooves are provided inside the assembly holes. The first filter plate 5, the second filter plate 6 and the third filter plate 7 are threadedly connected to the mounting nut 4 through the threaded grooves, and fixing threads are provided inside the fixing disc 8. The fixing disc 8 is threadedly connected to the mounting nut 4 through the fixing threads to fix the first filter plate 5, the second filter plate 6 and the third filter plate 7.

[0031] A support plate is fixed inside the fitting sleeve 1, and the support plate is used to support the bottom of the fixing rod 3. The top of the fixing rod 3 is clamped in the limiting sleeve 10. A combined thread is provided on the outside of the fitting sleeve 1, and the fitting sleeve 1 is connected to the ventilation plate through the combined thread.

[0032] The number of the installation bushings 4 is three, and the number of the fixing plates 8 is three pairs. The number of each pair of fixing plates 8 is two. The first filter plate 5, the second filter plate 6, and the third filter plate 7 are the primary, intermediate, and high - level filter plates in sequence.

[0033] In addition, during use, the first filter plate 5, the second filter plate 6, and the third filter plate 7 are sequentially placed outside the fixing rod 3 and are thread - connected to the installation bushings 4. And during the installation process, the fixing plates 8 are sequentially placed, so as to secondarily fix the first filter plate 5, the second filter plate 6, and the third filter plate 7 by using the fixing plates 8, realizing secondary fixation. After the fixing rod 3 is assembled, it is placed in the fitting sleeve 1 and is snap - connected to the fitting groove 2. Subsequently, the top plate 9 is placed on the top of the fitting sleeve 1, and its limiting sleeve 10 limits the fixing rod 3 to complete the assembly of the device. The first filter plate 5, the second filter plate 6, and the third filter plate 7 can filter the flowing air multiple times, reducing the flow rate and at the same time reducing the entry of dust.

[0034] Please refer to Figures 1-4 , a laboratory ventilation device for reducing the amount of dust entering in this embodiment. The ventilation device includes a bottom flow - dividing strip 12 and an upper flow - dividing strip 13 arranged inside the ventilation disc 11, and a filter cover 14 is connected to the outside of the ventilation disc 11. A dust - proof sheet 15 is arranged in the filter cover 14.

[0035] Among them, both the bottom flow - dividing strip 12 and the upper flow - dividing strip 13 are V - shaped plates, and the two flow - dividing plates are distributed in a cross - shape up and down. The outside of the ventilation disc 11 is provided with installation threads, and the inner side of the filter cover 14 is provided with threaded grooves adapted to the installation threads. The filter cover 14 is thread - connected to the ventilation disc 11 through the threaded grooves.

[0036] The filter cover 14 is provided with ventilation holes, and the dust - proof sheet 15 is fixedly installed in the filter cover 14 through the ventilation holes. The ventilation disc 11 is funnel - shaped. The number of both the bottom flow - dividing strip 12 and the upper flow - dividing strip 13 is seven.

[0037] In addition, when the ventilation device needs to be used and the amount of dust entering needs to be reduced, the filter cover 14 is thread - connected to the ventilation disc 11, and its dust - proof sheet 15 is assembled at the bottom of the filter cover 14, thereby effectively blocking the entry of dust. When the amount of entry needs to be increased, the filter cover 14 can be removed, thus realizing adjustable air intake; the bottom flow - dividing strip 12 and the upper flow - dividing strip 13 can block the flowing gas and further reduce the flow speed, thereby reducing the entry of dust.

[0038] When it needs to be used, it is directly connected to the plate by using the threads on the outside of the fitting sleeve 1, which can quickly complete the assembly and connection and meet the actual use.

[0039] The working principle of the above - mentioned embodiment is as follows:

[0040] (1) Thread the mounting sleeve 4 outside the fixed rod 3 to the first filter plate 5, the second filter plate 6, and the third filter plate 7, and fix them through the fixed disk 8. Then, place them sequentially into the assembly groove 2 in the assembly set 1, cover the top plate 9, and make its limit sleeve 10 snap onto the top of the fixed rod 3 to achieve the fixation and limitation of the filtering device.

[0041] (2) Thread the filter cover 14 to the ventilation disk 11 to fix the dust-proof sheet 15. The bottom flow dividing strip 12 and the upper flow dividing strip 13 can effectively reduce the air flow rate, thereby reducing the amount of dust entering.

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laboratory ventilation device for reducing dust ingress, comprising an assembly set (1), characterized in that: An assembly groove (2) is provided on the inner side of the assembly sleeve (1), and a first filter plate (5), a second filter plate (6) and a third filter plate (7) are installed in the assembly groove (2); A fixing rod (3) is arranged in the filter plate, a mounting screw sleeve (4) is arranged on the outer side of the fixing rod (3), a fixing plate (8) is threadedly connected to the mounting screw sleeve (4), a top plate (9) is arranged on the assembly sleeve (1), a limiting sleeve (10) is installed on the top plate (9), a ventilation plate (11) is installed at the bottom of the assembly sleeve (1), and a ventilation device is arranged in the ventilation plate (11).

2. A laboratory ventilation device for reducing dust ingress according to claim 1, characterized in that: The ventilation device comprises a bottom shunt strip (12) and an upper shunt strip (13) arranged on the inner side of a ventilation disc (11); a filter cover (14) is connected to the outer side of the ventilation disc (11); and a dustproof sheet (15) is arranged in the filter cover (14).

3. A laboratory ventilation device for reducing dust ingress according to claim 1, characterized in that: The inner side of the assembly sleeve (1) is funnel-shaped from top to bottom, and the assembly groove (2) is opened in a stepped manner from top to bottom on the inner side of the assembly sleeve (1).

4. A laboratory ventilation device for reducing dust ingress according to claim 1, characterized in that: The first filter plate (5), the second filter plate (6) and the third filter plate (7) are provided with assembly holes at their central parts, the assembly holes are provided with thread grooves inside, the first filter plate (5), the second filter plate (6) and the third filter plate (7) are threadedly connected to the mounting screw sleeve (4) through the thread grooves, the fixing plate (8) is provided with fixing threads inside, the fixing plate (8) is threadedly connected to the mounting screw sleeve (4) through the fixing threads, and the first filter plate (5), the second filter plate (6) and the third filter plate (7) are fixed.

5. A laboratory ventilation device for reducing dust ingress according to claim 1, characterized in that: A support plate is fixed on the inner side of the assembly sleeve (1), and the support plate is used to support the bottom of the fixing rod (3). The top of the fixing rod (3) is clamped in the limiting sleeve (10).

6. A laboratory ventilation device for reducing dust ingress according to claim 2, characterized in that: The bottom shunt strip (12) and the upper shunt strip (13) are both V-shaped plates, and the two shunt plates are arranged in a cross shape up and down.

7. A laboratory ventilation device for reducing dust ingress according to claim 2, characterized in that: The outer side of the ventilation disc (11) is provided with a mounting thread, the inner side of the filter cover (14) is provided with a thread groove matched with the mounting thread, and the filter cover (14) is threadedly connected to the ventilation disc (11) via the thread groove.

8. A laboratory ventilation device for reducing dust ingress according to claim 2, characterized in that: The filter cover (14) is provided with an air vent, and the dustproof sheet (15) is fixedly installed in the filter cover (14) through the air vent.

9. A laboratory ventilation device for reducing dust ingress according to claim 2, characterized in that: The ventilation disc (11) is funnel-shaped.

10. A laboratory ventilation device for reducing dust ingress according to claim 1, characterized in that: The outer side of the assembly sleeve (1) is provided with a combined thread, and the assembly sleeve (1) is connected to the ventilation plate via the combined thread.

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