Return air inlet with filtering function

Abstract

The utility model relates to a return air inlet with a filtering function, which belongs to the technical field of air purification equipment and comprises a return air pipe body, a convenient disassembly and assembly mechanism is arranged on the return air pipe body, an auxiliary fixing component is arranged on the return air pipe body, and the convenient disassembly and assembly mechanism comprises an air outlet groove formed in the top of the return air pipe body. And a sealing gasket is arranged at the top of the air return pipe body. According to the return air inlet with the filtering function, when the return air inlet with the filtering function is used in an operating room, filters of different grades are selected and installed through mutual cooperation of all structures on the return air pipe body according to different operating room types and requirements, and different gas pretreatment requirements are met; external tools are not needed during installation and replacement of the filter, disassembly and replacement are easy, time and labor are saved, and the installation stability of the filter is improved under the cooperation of the auxiliary fixing assembly, so that the use effect of the filter is better, and the practical performance of the air purification equipment for the operating room is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification equipment, in particular to an air return opening with a filtering function. Background Technique

[0002] The hospital ventilation system is an important environmental control system, mainly used to effectively control the temperature, humidity, cleanliness and freshness of indoor air to ensure the comfort and safety of the internal environment of the hospital. Through organized ventilation design, clean areas, semi-clean areas and clean areas are demarcated, the internal pressure difference gradient is controlled, the ventilation efficiency is improved, and ventilation is ensured to be thorough, safe and stable. In the hospital, due to the large flow of people and the fact that patients may carry viruses and bacteria, the pollution routes are mainly targeted at the nose, mouth and skin. Therefore, the hospital ventilation system requires zoning according to different functions, setting up independent and perfect fresh air and exhaust air systems, forming volume pressure differences in different areas, making the air in the hospital flow in an organized manner, without backflow or disorderly flow, and effectively avoiding cross-contamination.

[0003] The air return opening in the operating room is a key component of the operating room ventilation system. The air return opening can discharge the dirty air in the room and introduce fresh air at the same time to ensure the air circulation in the operating room. However, the existing air return opening filtering device is fixed by bolts. Although it can provide a good fixing effect during use, due to the particularity of the operating room, the filtering structure often needs to be replaced as required. The filtering structure fixed by bolts needs to use other tools when disassembling and replacing, so it is possible that germs carried on the tools remain in the operating room, thus interfering with the sterile environment of the operating room and affecting the internal safety of the operating room. Therefore, an air return opening with a filtering function is proposed to solve the above technical problems. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an air return opening with a filtering function, which has the advantages of being convenient for disassembly, replacement and high maintenance efficiency, and solves the problems that the existing air return opening filtering device is fixed by bolts. Although it can provide a good fixing effect during use, due to the particularity of the operating room, the filtering structure often needs to be replaced as required. The filtering structure fixed by bolts needs to use other tools when disassembling and replacing, so it is possible that germs carried on the tools remain in the operating room, thus interfering with the sterile environment of the operating room and affecting the internal safety of the operating room.

[0005] To achieve the above object, the utility model provides the following technical scheme: an air return opening with a filtering function, including a return air duct body, a convenient disassembly and assembly mechanism is arranged on the return air duct body, and an auxiliary fixing component is arranged on the return air duct body;

[0006] The convenient disassembly and assembly mechanism includes an air outlet groove formed at the top of the return air duct body. A sealing gasket is provided at the top of the return air duct body. A positioning block is arranged inside the return air duct body. An installation seat is fixedly installed at the top of the return air duct body. A fixing rod is fixedly installed inside the installation seat. An activity block slidingly connected to the outer side of the fixing rod and slidingly connected to the right inner wall of the installation seat is provided. A pull rod extending to the top of the installation seat is fixedly installed at the top of the activity block;

[0007] A spring sleeved on the outer side of the pull rod is fixedly installed at the top of the activity block. A plug block is fixedly installed at the bottom of the activity block. An installation plate is arranged on the right side of the installation seat. A filter is arranged on the left side of the installation plate. A plug-in block extending into the installation seat and movably inserted with the plug block is fixedly installed on the left side of the installation plate.

[0008] Furthermore, the auxiliary fixing component includes a fixing block fixedly installed at the bottom of the return air duct body. A positioning rod is fixedly installed on the right side of the fixing block. An auxiliary screw threadedly connected to the installation plate is rotatably connected inside the fixing block.

[0009] Furthermore, a sliding hole is formed inside the activity block. A sliding groove is formed on the right inner wall of the installation seat. The activity block is slidingly connected to the fixing rod and the right inner wall of the installation seat through the sliding hole and the sliding groove respectively.

[0010] Furthermore, a first through hole is formed at the top of the installation seat. The pull rod extends to the top of the installation seat through the first through hole.

[0011] Furthermore, a plug-in slot is formed on the right side of the installation seat. The plug-in block extends into the installation seat through the plug-in slot.

[0012] Furthermore, a plug-in hole is formed at the top of the plug-in block. The plug block is movably inserted with the plug-in block through the plug-in hole.

[0013] Furthermore, a through hole is formed inside the installation plate. The positioning rod passes through the installation plate through the through hole.

[0014] Furthermore, a threaded hole is formed on the left side of the installation plate. The auxiliary screw is threadedly connected to the installation plate through the threaded hole.

[0015] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0016] The air return opening with a filtering function, through the convenient disassembly and assembly mechanism provided, when used in the operating room, through the mutual cooperation of the structures on the air return pipe body, different grades of filters can be selected and installed according to different types and requirements of operating rooms to meet the needs of differential gas pretreatment. And when installing and replacing the filter, no external tools are needed, and the disassembly and replacement are simple, time-saving and labor-saving. And with the cooperation of the auxiliary fixing components, the installation stability of the filter is improved, so that the effect of the filter during use is better, thereby improving the practical performance of the air purification equipment in the operating room. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic cross-sectional view of the structure of the present invention;

[0018] Figure 2 is a schematic front view of the structure of the present invention;

[0019] Figure 3 For the present invention Figure 1 is an enlarged schematic view of structure A in;

[0020] Figure 4 is a schematic three-dimensional structure view of the present invention.

[0021] In the figure: 1, air return pipe body; 2, air outlet groove; 3, sealing gasket; 4, positioning block; 5, mounting seat; 6, fixed rod; 7, movable block; 8, pull rod; 9, spring; 10, insertion block; 11, mounting plate; 12, filter; 13, plug-in block; 14, fixed block; 15, positioning rod; 16, auxiliary screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-4 , an air return opening with a filtering function in this embodiment includes an air return pipe body 1, a convenient disassembly and assembly mechanism is provided on the air return pipe body 1, and an auxiliary fixing component is provided on the air return pipe body 1.

[0024] Embodiment 1: The convenient disassembly and assembly mechanism includes an air outlet groove 2 opened at the top of the air return pipe body 1, a sealing gasket 3 is provided at the top of the air return pipe body 1, a positioning block 4 is provided inside the air return pipe body 1, and a mounting seat 5 is fixedly installed at the top of the air return pipe body 1, and the air purification equipment is installed and used through the mounting seat 5.

[0025] Among them, a fixing rod 6 is fixedly installed inside the mounting base 5. A movable block 7 which is slidably connected to the outer side of the fixing rod 6 and slidably connected to the right inner wall of the mounting base 5 is provided. A sliding hole is formed inside the movable block 7, and a sliding groove is formed on the right inner wall of the mounting base 5. The movable block 7 is slidably connected to the fixing rod 6 and the right inner wall of the mounting base 5 through the sliding hole and the sliding groove respectively, which is convenient for limiting the movement of the movable block 7 through the sliding hole and the sliding groove, so that the movable block 7 moves more smoothly inside the mounting base 5.

[0026] Among them, a pull rod 8 extending to the top of the mounting base 5 is fixedly installed at the top of the movable block 7. A first through hole is formed in the top of the mounting base 5, and the pull rod 8 extends to the top of the mounting base 5 through the first through hole, which is convenient for the staff to pull the pull rod 8 through the first through hole, so that the pull rod 8 drives the movable block 7 to adjust its position inside the mounting base 5.

[0027] Among them, a spring 9 sleeved on the outer side of the pull rod 8 is fixedly installed at the top of the movable block 7. A plug block 10 is fixedly installed at the bottom of the movable block 7. An installation plate 11 is arranged on the right side of the mounting base 5. A filter 12 is arranged on the left side of the installation plate 11. A plug-in block 13 extending into the mounting base 5 and movably inserted with the plug block 10 is fixedly installed on the left side of the installation plate 11. A plug-in slot is formed on the right side of the mounting base 5, and the plug-in block 13 extends into the mounting base 5 through the plug-in slot, which is convenient for installing the installation plate 11 on the return air duct body 1 through the plug-in block 13 for use. A plug-in hole is formed at the top of the plug-in block 13, and the plug block 10 is movably inserted with the plug-in block 13 through the plug-in hole, which is convenient for the plug block 10 to fix the plug-in block 13 through the plug-in hole, so that its installation is firm.

[0028] Embodiment 2: The auxiliary fixing component includes a fixing block 14 fixedly installed at the bottom of the return air duct body 1. A positioning rod 15 is fixedly installed on the right side of the fixing block 14. A through hole is formed inside the installation plate 11, and the positioning rod 15 penetrates through the installation plate 11 through the through hole, which is convenient for positioning the installation plate 11 during installation through the positioning rod 15, so as to ensure its installation effect. An auxiliary screw rod 16 threadedly connected with the installation plate 11 is rotatably connected inside the fixing block 14. A threaded hole is formed on the left side of the installation plate 11, and the auxiliary screw rod 16 is threadedly connected with the installation plate 11 through the threaded hole, which is convenient for enhancing the fixing effect after the installation plate 11 is installed through the auxiliary screw rod 16, so as to improve the stability of the filter 12 during use.

[0029] It should be noted that for the air return opening with a filtering function, through the conveniently detachable and installable mechanism provided, when used in the operating room, through the mutual cooperation among the various structures on the air return pipe body 1, different grades of filters 12 can be selected and installed according to different types and requirements of operating rooms to meet the differential gas pretreatment requirements. Moreover, when installing and replacing the filter 12, no external tools are needed, and the disassembly and replacement are simple, saving time and effort. And with the cooperation of the auxiliary fixing components, the installation stability of the filter 12 is improved, so that the effect of the filter 12 during use is better, thereby enhancing the practical performance of the air purification equipment in the operating room.

[0030] The working principle of the above embodiment is as follows:

[0031] For the air return opening with a filtering function, during use, the filter 12 is matched and connected with the mounting plate 11 according to the needs of different operating rooms. Then, the pull rod 8 is pulled to drive the movable block 7 to move upward. Next, the plug-in block 13 is inserted into the interior of the mounting seat 5. Then, the pull rod 8 is released, and under the elastic force of the spring 9, the plug 10 on the movable block 7 is movably inserted into the plug-in block 13. While the mounting plate 11 is being installed, the positioning rod 15 on the right side of the fixed block 14 penetrates through the mounting plate 11 to assist in the precise docking of the mounting plate 11. And after the installation is completed, the auxiliary screw 16 is manually screwed to be threadedly connected with the mounting plate 11, thereby further enhancing the installation stability of the mounting plate 11 and the filter 12 and enabling its use effect to reach the normal level.

[0032] It should be noted that in this text, 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 including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including an..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air return opening with a filtering function, comprising an air return duct body (1), characterized in that: A convenient disassembly and assembly mechanism is provided on the main body (1) of the return air duct, and an auxiliary fixing component is provided on the main body (1) of the return air duct; The convenient disassembly and assembly mechanism includes an air outlet groove (2) opened at the top of the main body (1) of the return air duct. A sealing gasket (3) is provided at the top of the main body (1) of the return air duct. A positioning block (4) is provided inside the main body (1) of the return air duct. A mounting seat (5) is fixedly installed at the top of the main body (1) of the return air duct. A fixing rod (6) is fixedly installed inside the mounting seat (5). A movable block (7) slidably connected to the outer side of the fixing rod (6) and slidably connected to the right inner wall of the mounting seat (5) is provided. A pull rod (8) extending to the top of the mounting seat (5) is fixedly installed at the top of the movable block (7); A spring (9) sleeved on the outer side of the pull rod (8) is fixedly installed at the top of the movable block (7). A plug block (10) is fixedly installed at the bottom of the movable block (7). An installation plate (11) is provided on the right side of the mounting seat (5). A filter (12) is provided on the left side of the installation plate (11). A plug-in block (13) extending to the inside of the mounting seat (5) and movably inserted with the plug block (10) is fixedly installed on the left side of the installation plate (11).

2. The air return opening with a filtering function according to claim 1, wherein: The auxiliary fixing component includes a fixing block (14) fixedly installed at the bottom of the main body (1) of the return air duct. A positioning rod (15) is fixedly installed on the right side of the fixing block (14). An auxiliary screw rod (16) threadedly connected to the installation plate (11) is rotatably connected inside the fixing block (14).

3. The air return opening with a filtering function according to claim 1, characterized in that: A sliding hole is opened inside the movable block (7). A sliding groove is opened on the right inner wall of the mounting seat (5). The movable block (7) is slidably connected to the fixing rod (6) and the right inner wall of the mounting seat (5) through the sliding hole and the sliding groove respectively.

4. The air return opening with a filtering function according to claim 1, wherein: A first through hole is opened at the top of the mounting seat (5). The pull rod (8) extends to the top of the mounting seat (5) through the first through hole.

5. The air return opening with a filtering function according to claim 1, wherein: A plug-in slot is opened on the right side of the mounting seat (5). The plug-in block (13) extends to the inside of the mounting seat (5) through the plug-in slot.

6. The air return opening with a filtering function according to claim 1, wherein: A plug-in hole is opened at the top of the plug-in block (13). The plug block (10) is movably inserted with the plug-in block (13) through the plug-in hole.

7. A return air vent with a filtering function according to claim 2, characterized in that: A through hole is opened inside the installation plate (11). The positioning rod (15) penetrates through the installation plate (11) through the through hole.

8. The air return opening with a filtering function according to claim 2, wherein: A threaded hole is opened on the left side of the installation plate (11). The auxiliary screw rod (16) is threadedly connected to the installation plate (11) through the threaded hole.

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