Confined space air exchange device and method

Abstract

The invention discloses a limited space air exchange device and method, and relates to the technical field of air exchange. According to the limited space air exchange device and method, through cooperation of the air inlet pipeline and the exhaust pipeline, when air exchange operation is carried out, external air can be conveyed to the limited space through the air inlet pipeline and the air inlet connecting pipe along with operation of fan equipment, and through cooperation of the transmission assembly, the air exchange efficiency is improved. By arranging the exhaust pipeline and the exhaust connecting pipe, air in the limited space is simultaneously pumped out through cooperation of the exhaust pipeline and the exhaust connecting pipe, the ventilation effect of the limited space is guaranteed, the operation convenience is improved, meanwhile, by arranging the exhaust end, on one hand, automatic closing can be completed when ventilation is completed, and on the other hand, the exhaust uniformity of equipment can be improved; and the use effect and the application range of the equipment are further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air exchange, and in particular to a confined space air exchange device and method. Background Art

[0002] Confined space mostly refers to a relatively small space or a closed space. Currently, ventilation devices are mostly used in confined spaces to achieve the effect of ventilation. Referring to the Chinese patent, the announcement number is "CN115949601A" "A confined space air exchange device", the patent points out that when existing ventilation equipment is ventilated, the air inlet and outlet in the confined space are often in the same position, which cannot meet the use requirements; however, the above-mentioned equipment still has the problem of poor ventilation effect and operation convenience. In this regard, we propose a confined space air exchange device and method to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a confined space air exchange device and method, which solves the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a confined space air exchange device, comprising a body, an air intake duct and an exhaust duct are respectively fixed inside the body, the air intake duct is used to be connected to a fan device, an end of the air intake duct away from the fan device is connected to an air intake connection pipe, the air intake connection pipe is used to extend to the confined space to transport air, the end of the exhaust duct is connected to an exhaust connection pipe, and the exhaust connection pipe extends to the inside of the confined space, a transmission component is provided between the exhaust duct and the air intake duct, and is used to extract the air inside the confined space through the exhaust duct to complete the air exchange;

[0005] The transmission assembly includes a driving rod and a transmission rod, the driving rod is rotatably connected to the inside of the intake pipe, and the transmission rod is rotatably connected to the inside of the exhaust pipe. The outer sides of the driving rod and the transmission rod are respectively fixedly sleeved with driving blades and transmission blades. The ends of the driving rod and the transmission rod are fixedly sleeved with driving gears, and the two driving gears are meshed with each other.

[0006] Preferably, sealing rings are fixedly installed inside the exhaust pipe and the intake pipe, and the end of the transmission rod passes through the sealing ring and is slidably connected thereto.

[0007] Preferably, the ends of the air intake connecting pipe and the exhaust connecting pipe are fixedly mounted with connecting ends for connecting the pipes, and a sealing end is inserted inside the connecting end.

[0008] Preferably, an exhaust end head is installed inside the air intake connecting pipe for discharging the transported gas into a confined space, the exhaust end head is fixedly connected to the air intake connecting pipe, and arc-shaped exhaust ports are provided on both sides of the exhaust end head, limiting slide grooves are provided on both sides inside the exhaust end head, and arc-shaped sealing plates are slidably connected inside the limiting slide grooves, the arc-shaped sealing plates are used to seal the corresponding arc-shaped exhaust ports, a connecting ring frame is fixedly installed between the two arc-shaped sealing plates, and a reset spring is fixedly installed between the connecting ring frame and the inner wall of the exhaust end head.

[0009] Preferably, a positioning frame is fixedly installed inside the exhaust end head, and an exhaust shaft is rotatably installed inside the positioning frame, and a plurality of arc-shaped exhaust plates are fixedly installed on the outer side of the exhaust shaft.

[0010] Preferably, an air intake end is fixedly installed inside the exhaust connection pipe, and a blocking net is fixedly installed inside the air intake end.

[0011] Preferably, a filter pipe is fixedly installed inside the air intake pipe, and the filter pipe is used to filter impurities contained in the transported air. A conical filter screen is fixedly installed inside the filter pipe.

[0012] Preferably, a plurality of right-angle connectors are fixedly mounted on the bottom of the conical filter screen, and the right-angle connectors are fixedly mounted inside the filter pipe.

[0013] Preferably, a cleaning shaft is rotatably connected inside the filter pipe, one end of the cleaning shaft is fixedly connected to the driving rod, the end of the cleaning shaft away from the driving rod passes through the conical filter screen and is fixedly installed with a positioning ring sleeve, an elastic cleaning scraper is fixedly installed on the outer side of the positioning ring sleeve, the elastic cleaning scraper is used to clean the conical filter screen, and a storage chamber is opened inside the filter pipe.

[0014] The present invention also discloses a confined space air exchange method, based on the above-mentioned air exchange device, specifically comprising the following steps:

[0015] S1. First, install the machine body in a confined space, and then extend the air intake duct to the outside and connect it to the fan equipment. Similarly, extend the exhaust duct to the outside, and then prepare a plurality of air intake connecting pipes and exhaust connecting pipes according to the size of the confined space, and connect the plurality of air intake connecting pipes and the plurality of exhaust connecting pipes to the air intake duct and the exhaust duct respectively through connecting ends;

[0016] S2. As the fan equipment is running, it can extract external air and transport it to the confined space through the air intake duct and the air intake connection pipe. When the air enters the exhaust end, the connection ring frame can be lifted up by pressure and drive the arc-shaped sealing plates on both sides to slide up. At this time, the air can be discharged through the arc-shaped exhaust ports on both sides;

[0017] S3. When air enters the air intake duct, it can drive the driving rod to operate through the cooperation of the driving blades, and drive the transmission rod and the transmission blades to operate through the cooperation of the driving gear. As the transmission blades operate, the air inside the confined space can be extracted and discharged through the exhaust duct and the exhaust connecting pipe to achieve air exchange.

[0018] S4. When air enters the air intake connection pipe through the air intake duct, it can filter impurities in the air through the conical filter when passing through the filter duct, and clean the conical filter through the cooperation of the cleaning shaft rod and the elastic cleaning scraper, so that the impurities can fall into the storage cavity for collection.

[0019] The present invention provides a confined space air exchange device and method. Compared with the prior art, it has the following beneficial effects:

[0020] (1) The confined space air exchange device and method, through the cooperation of the air intake duct and the exhaust duct, can transport the external air to the confined space through the air intake duct and the air intake connecting pipe as the fan equipment is running during the ventilation operation, and through the cooperation of the transmission component, the air inside the confined space is extracted through the exhaust duct and the exhaust connecting pipe, thereby ensuring the ventilation effect of the confined space and improving the convenience of operation. At the same time, through the setting of the exhaust end head, on the one hand, it can be automatically closed when the ventilation is completed, and on the other hand, it can improve the exhaust uniformity of the equipment, further improving the use effect and application scope of the equipment.

[0021] (2) The confined space air exchange device and method, through the setting of the filter duct, can complete the filtering process of the air through the conical filter when the equipment is in the process of ventilation, and through the cooperation of the cleaning shaft and the positioning ring sleeve, it can drive the elastic cleaning scraper to rotate along the outer surface of the conical filter to clean the impurities attached to the surface of the conical filter until the impurities fall into the storage chamber, completing the automatic collection and processing of the impurities, further improving the ventilation effect and maintenance convenience of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Fig. 1 is a schematic diagram of the structure of the machine body of the present invention;

[0023] FIG2 is a schematic diagram of a cross-sectional structure of a machine body of the present invention;

[0024] FIG3 is a schematic cross-sectional view of the air intake pipe and the filter pipe of the present invention;

[0025] FIG4 is a front view of FIG3 of the present invention;

[0026] FIG5 is an enlarged structural schematic diagram of point A in FIG4 of the present invention;

[0027] FIG6 is a schematic cross-sectional view of the air intake connection pipe and the exhaust end head of the present invention;

[0028] FIG7 is an enlarged structural schematic diagram of point B in FIG6 of the present invention;

[0029] FIG8 is a schematic diagram of the cross-sectional structure of the exhaust duct of the present invention.

[0030] In the figure: 1. body; 2. air intake duct; 3. exhaust duct; 4. air intake connecting pipe; 5. exhaust connecting pipe; 6. connecting end; 601. sealing end; 7. exhaust end; 701. arc-shaped exhaust port; 702. limiting slide groove; 8. arc-shaped sealing plate; 9. connecting ring frame; 901. reset spring; 10. exhaust shaft rod; 1001. positioning frame; 1002. arc-shaped exhaust sheet; 11. air intake end; 1101. blocking net; 12. driving rod; 1201. driving blade; 13. transmission rod; 1301. transmission blade; 1302. sealing ring; 14. driving gear; 15. filter duct; 1501. storage chamber; 16. conical filter screen; 1601. right-angle connector; 17. cleaning shaft rod; 1701. positioning ring sleeve; 1702. elastic cleaning scraper. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Please refer to Figures 1 to 8. The present invention provides two technical solutions, specifically including the following embodiments:

[0033] Embodiment 1:

[0034] In an embodiment of the present invention, a confined space air exchange device includes a body 1, an air intake duct 2 and an exhaust duct 3 are respectively fixed inside the body 1, the air intake duct 2 is used to be connected to a fan device, the fan device is an existing device, and is used to transport air, the end of the air intake duct 2 away from the fan device is connected to an air intake connection pipe 4, the air intake connection pipe 4 is used to extend to the confined space to transport air, the end of the exhaust duct 3 is connected to an exhaust connection pipe 5, and the exhaust connection pipe 5 extends to the inside of the confined space, and a transmission component is provided between the exhaust duct 3 and the air intake duct 2, which is used to extract the air inside the confined space through the exhaust duct 3 to complete the air exchange;

[0035] In the embodiment of the present invention, specifically, when the air is exchanged, as the fan device is running, the external air is transported to the confined space through the air intake duct 2 and the air intake connecting pipe 4, and through the cooperation of the transmission component, the air inside the confined space is extracted through the cooperation of the exhaust duct 3 and the exhaust connecting pipe 5, thereby ensuring the ventilation effect of the confined space;

[0036] In the embodiment of the present invention, specifically, the transmission assembly includes a driving rod 12 and a transmission rod 13, the driving rod 12 is rotatably connected to the inside of the air intake duct 2, and the transmission rod 13 is rotatably connected to the inside of the exhaust duct 3, and the outer sides of the driving rod 12 and the transmission rod 13 are respectively fixedly sleeved with a driving blade 1201 and a transmission blade 1301, and the ends of the driving rod 12 and the transmission rod 13 are fixedly sleeved with a driving gear 14, and the two driving gears 14 are meshed with each other, and the air passes through the air intake duct 2 and the driving blade 1201, which can drive the driving rod 12 to operate, and the driving gear 14 and the transmission rod 13 cooperate to complete the transmission operation, thereby ensuring the consistency of air input and output inside the confined space;

[0037] In the embodiment of the present invention, specifically, a sealing ring 1302 is fixedly installed inside the exhaust pipe 3 and the intake pipe 2, and the end of the transmission rod 13 passes through the sealing ring 1302 and is slidably connected thereto. The arrangement of the sealing ring 1302 can improve the sealing performance between the transmission rod 13 and the exhaust pipe 3 and the intake pipe 2, thereby effectively reducing air leakage.

[0038] In the embodiment of the present invention, specifically, the ends of the air intake connection pipe 4 and the exhaust connection pipe 5 are fixedly installed with connection ends 6 for connecting the pipes, and a sealing end 601 is inserted inside the connection end 6. The connection end 6 is used for connecting multiple sections of the air intake connection pipe 4 or multiple sections of the exhaust connection pipe 5. According to the size of the confined space, a corresponding number of air intake connection pipes 4 and exhaust connection pipes 5 can be selected to perform ventilation operations. Through the cooperation of the connection end 6, the convenience of laying the pipes can be guaranteed, and it is convenient to realize ventilation operations for different confined spaces;

[0039] In the embodiment of the present invention, further, an exhaust end head 7 is installed inside the air intake connection pipe 4, which is used to discharge the transported gas into a confined space. The exhaust end head 7 is fixedly connected to the air intake connection pipe 4, and arc-shaped exhaust ports 701 are provided on both sides of the exhaust end head 7. Limiting slide grooves 702 are provided on both sides of the exhaust end head 7, and arc-shaped sealing plates 8 are slidably connected inside the limiting slide grooves 702. The arc-shaped sealing plates 8 are used to seal the corresponding arc-shaped exhaust ports 701. A connecting ring frame 9 is fixedly installed between the two arc-shaped sealing plates 8, and the connecting ring frame 9 is connected to the exhaust end head 7. A return spring 901 is fixedly installed between the inner walls of the head 7; during the ventilation process, as the air enters the exhaust end head 7, the connecting ring frame 9 can be pressed and lifted up, and drive the arc-shaped sealing plates 8 on both sides to slide up, at this time the arc-shaped exhaust port 701 is opened, and the air can be discharged through the arc-shaped exhaust ports 701 on both sides. When the exhaust is completed, as the fan equipment stops, the connecting ring frame 9 can drive the arc-shaped sealing plates 8 on both sides to reset through the return spring 901, and close the arc-shaped exhaust port 701, thereby preventing dust and other debris from entering the air intake connection pipe 4, ensuring the operation effect;

[0040] In the embodiment of the present invention, further, a positioning frame 1001 is fixedly installed inside the exhaust end head 7, and an exhaust shaft 10 is rotatably installed inside the positioning frame 1001, and a plurality of arc-shaped exhaust sheets 1002 are fixedly installed on the outside of the exhaust shaft 10. When air is discharged through the exhaust end head 7, it can change the exhaust wind direction by contacting with the plurality of arc-shaped exhaust sheets 1002, and can drive the plurality of arc-shaped exhaust sheets 1002 to run with the exhaust shaft 10, thereby further improving the exhaust uniformity.

[0041] In the embodiment of the present invention, specifically, an air inlet end 11 is fixedly installed inside the exhaust connection pipe 5, and a blocking net 1101 is fixedly installed inside the air inlet end 11, and debris can be blocked by the blocking net 1101;

[0042] In the embodiment of the present invention, further, a filter pipe 15 is fixedly installed inside the air intake pipe 2, and the filter pipe 15 is used to filter impurities contained in the transported air. A conical filter screen 16 is fixedly installed inside the filter pipe 15. When the gas passes through the filter pipe 15, the conical filter screen 16 can cooperate to filter the air.

[0043] In the embodiment of the present invention, specifically, a plurality of right-angle connectors 1601 are fixedly installed at the bottom of the conical filter screen 16, and the right-angle connectors 1601 are fixedly installed inside the filter pipe 15;

[0044] In the embodiment of the present invention, a cleaning shaft 17 is rotatably connected to the inside of the filter pipe 15, one end of the cleaning shaft 17 is fixedly connected to the driving rod 12, the end of the cleaning shaft 17 away from the driving rod 12 passes through the conical filter screen 16, and a positioning ring sleeve 1701 is fixedly installed, and an elastic cleaning scraper 1702 is fixedly installed on the outer side of the positioning ring sleeve 1701, and the elastic cleaning scraper 1702 is used to clean the conical filter screen 16, and a storage chamber 1501 is opened inside the filter pipe 15. When the driving rod 12 is operated, the cleaning shaft 17 and the positioning ring sleeve 1701 can be driven to operate, so that the elastic cleaning scraper 1702 can run with the positioning ring sleeve 1701 and rotate along the outer surface of the conical filter screen 16 to clean the impurities attached to the surface of the conical filter screen 16 until the impurities fall into the storage chamber 1501 and are automatically collected.

[0045] Embodiment 2: The embodiment of the present invention discloses a method for air exchange in a confined space, based on the above-mentioned air exchange device, specifically comprising the following steps:

[0046] S1. First, the machine body 1 is installed in a confined space, and then the air intake duct 2 is extended to the outside and connected to the fan device. Similarly, the exhaust duct 3 is extended to the outside, and then according to the size of the confined space, a plurality of air intake connecting pipes 4 and exhaust connecting pipes 5 are prepared, and the plurality of air intake connecting pipes 4 and the plurality of exhaust connecting pipes 5 are respectively connected to the air intake duct 2 and the exhaust duct 3 through the connecting end 6;

[0047] S2. As the fan device is running, it can extract external air and transport it to the confined space through the air intake duct 2 and the air intake connection pipe 4. When the air enters the exhaust end 7, the connection ring frame 9 can be pressed and lifted up, and the arc-shaped sealing plates 8 on both sides can slide upward. At this time, the air can be discharged through the arc-shaped exhaust ports 701 on both sides;

[0048] S3. When air enters the air intake duct 2, it can drive the driving rod 12 to operate through the cooperation of the driving blade 1201, and drive the transmission rod 13 and the transmission blade 1301 to operate through the cooperation of the driving gear 14. As the transmission blade 1301 operates, the air inside the confined space can be extracted and discharged through the exhaust duct 3 and the exhaust connecting pipe 5, thereby realizing air exchange.

[0049] S4. When air enters the air intake connection pipe 4 through the air intake duct 2, it can filter impurities in the air through the conical filter screen 16 when passing through the filter duct 15, and the conical filter screen 16 is cleaned by the cooperation of the cleaning shaft 17 and the elastic cleaning scraper 1702, so that the impurities can fall into the storage cavity 1501 and be collected.

[0050] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0051] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A confined space air exchange device, comprising a body (1), characterized in that: An air intake duct (2) and an exhaust duct (3) are respectively fixed inside the machine body (1), wherein the air intake duct (2) is used to be connected to a fan device, an end of the air intake duct (2) away from the fan device is connected to an air intake connecting pipe (4), the air intake connecting pipe (4) is used to extend to a confined space to transport air, an end of the exhaust duct (3) is connected to an exhaust connecting pipe (5), and the exhaust connecting pipe (5) extends to the inside of the confined space, and a transmission component is provided between the exhaust duct (3) and the air intake duct (2), which is used to extract air from the inside of the confined space through the exhaust duct (3) to complete air exchange; The transmission assembly comprises a driving rod (12) and a transmission rod (13); the driving rod (12) is rotatably connected to the inside of the air intake duct (2); the transmission rod (13) is rotatably connected to the inside of the exhaust duct (3); driving blades (1201) and transmission blades (1301) are fixedly sleeved on the outsides of the driving rod (12) and the transmission rod (13), respectively; and driving gears (14) are fixedly sleeved on the ends of the driving rod (12) and the transmission rod (13); the two driving gears (14) are meshed with each other.

2. The confined space air exchange device according to claim 1, characterized in that: A sealing ring (1302) is fixedly installed inside the exhaust pipe (3) and the intake pipe (2), and the end of the transmission rod (13) passes through the sealing ring (1302) and is slidably connected thereto.

3. The confined space air exchange device according to claim 1, characterized in that: The ends of the air intake connection pipe (4) and the exhaust connection pipe (5) are both fixedly mounted with connection ends (6) for performing pipe connection operations, and a sealing end (601) is inserted into the connection end (6).

4. The confined space air exchange device according to claim 1, characterized in that: An exhaust end head (7) is installed inside the air intake connection pipe (4) for discharging the transported gas into a confined space. The exhaust end head (7) is fixedly connected to the air intake connection pipe (4), and arc-shaped exhaust ports (701) are provided on both sides of the exhaust end head (7). Limiting slide grooves (702) are provided on both sides of the exhaust end head (7), and arc-shaped sealing plates (8) are slidably connected inside the limiting slide grooves (702). The arc-shaped sealing plates (8) are used to seal the corresponding arc-shaped exhaust ports (701). A connection ring frame (9) is fixedly installed between the two arc-shaped sealing plates (8), and a return spring (901) is fixedly installed between the connection ring frame (9) and the inner wall of the exhaust end head (7).

5. The confined space air exchange device according to claim 4, characterized in that: A positioning frame (1001) is fixedly mounted inside the exhaust end head (7), and an exhaust shaft rod (10) is rotatably mounted inside the positioning frame (1001), and a plurality of arc-shaped exhaust plates (1002) are fixedly mounted on the outside of the exhaust shaft rod (10).

6. The confined space air exchange device according to claim 1, characterized in that: An air intake end head (11) is fixedly installed inside the exhaust connection pipe (5), and a blocking net (1101) is fixedly installed inside the air intake end head (11).

7. The confined space air exchange device according to claim 1, characterized in that: A filter pipe (15) is fixedly installed inside the air intake pipe (2), and the filter pipe (15) is used to filter impurities contained in the transported air. A conical filter screen (16) is fixedly installed inside the filter pipe (15).

8. The confined space air exchange device according to claim 7, characterized in that: A plurality of right-angle connectors (1601) are fixedly mounted on the bottom of the conical filter screen (16), and the right-angle connectors (1601) are fixedly mounted inside the filter pipe (15).

9. The confined space air exchange device according to claim 7, characterized in that: A cleaning shaft (17) is rotatably connected inside the filter pipe (15); one end of the cleaning shaft (17) is fixedly connected to the drive rod (12); one end of the cleaning shaft (17) away from the drive rod (12) passes through the conical filter screen (16) and is fixedly mounted with a positioning ring sleeve (1701); an elastic cleaning scraper (1702) is fixedly mounted on the outside of the positioning ring sleeve (1701); the elastic cleaning scraper (1702) is used to clean the conical filter screen (16); and a storage chamber (1501) is provided inside the filter pipe (15).

10. A method for air exchange in a confined space, based on the air exchange device according to any one of claims 1 to 9, characterized in that: The specific steps include: S1. First, the machine body (1) is installed in a confined space, and then the air intake duct (2) is extended to the outside and connected to the fan device. Similarly, the exhaust duct (3) is extended to the outside, and then, according to the size of the confined space, a plurality of air intake connecting pipes (4) and exhaust connecting pipes (5) are prepared, and the plurality of air intake connecting pipes (4) and the plurality of exhaust connecting pipes (5) are respectively connected to the air intake duct (2) and the exhaust duct (3) through connecting ends (6); S2. As the fan device is running, it can extract external air and transport it to the confined space through the air intake duct (2) and the air intake connecting pipe (4). When the air enters the exhaust end (7), the connecting ring frame (9) can be lifted up by pressure and drive the arc-shaped sealing plates (8) on both sides to slide upward. At this time, the air can be discharged through the arc-shaped exhaust ports (701) on both sides. S3. When air enters the interior of the air intake duct (2), the driving blade (1201) can be used to drive the driving rod (12) to operate, and the driving gear (14) can be used to drive the transmission rod (13) and the transmission blade (1301) to operate. As the transmission blade (1301) operates, the air in the confined space can be extracted and discharged through the exhaust duct (3) and the exhaust connection pipe (5), thereby achieving air exchange. S4. When air enters the air intake connection pipe (4) through the air intake pipe (2), impurities in the air can be filtered through the conical filter screen (16) when passing through the filter pipe (15). The conical filter screen (16) is cleaned by the cooperation of the cleaning shaft (17) and the elastic cleaning scraper (1702), so that the impurities can fall into the storage chamber (1501) and be collected.

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