Shoe cabinet air bag assembly, shoe cabinet with positive-pressure external pollution discharge air and negative-pressure internal environment jet flow drying function and control method of shoe cabinet air bag assembly

Abstract

The invention belongs to the technical field of green energy conservation, and particularly relates to a shoe cabinet air bag assembly, a shoe cabinet capable of achieving positive-pressure external blow-off air and negative-pressure internal environment jet flow drying and a control method of the shoe cabinet air bag assembly. The shoe cabinet air bag assembly comprises a positive-pressure cavity and a pumping and discharging unit, wherein the pumping and discharging unit is used for pumping air into the cavity to form a positive-pressure cavity; the air outlet structure is used for discharging part of air in the cavity; and the jet flow unit is used for discharging air in the cavity. The air outlet structure is a small-diameter throttling blow-off pipeline which is small in inner diameter and large in length and has a throttling effect on blow-off air outwards. Reliability, economical efficiency and universality are improved, and a small-diameter throttling blow-off pipeline is adopted to replace an electric air door in the prior art; a small-diameter throttling blow-off pipeline with a large length is arranged, so that the adaptability of the shoe cabinet to an external dirty air discharge pipeline is improved; dirty air guided out by the small-diameter throttling blow-off pipeline is not heated, and all the heated air enters the second positive pressure cavity and is injected into the shoe heel; compared with the prior art, heat loss of the drying shoe cabinet is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of green energy saving, and in particular relates to a shoe cabinet air bag assembly and a shoe cabinet with positive pressure external sewage exhaust and negative pressure internal environment jet drying and a control method thereof. Background Art

[0002] The prior art discloses a shoe cabinet air bag assembly for jet drying shoe soles under a positive pressure external sewage exhaust and negative pressure internal environment (publication number CN116066384A), which installs an air bag assembly into the shoe cabinet body, and respectively arranges an air inlet structure, an air outlet structure and a shoe mouth jet structure connected to the air bag cavity therein, and an exhaust unit is installed at the air inlet structure; under the exhaust action of the exhaust unit, the air in the shoe cabinet body is sucked into the air bag cavity through the air inlet structure to form a positive pressure, and the air under the positive pressure state is divided into two paths, one of which is discharged through the air outlet structure, so that the inside of the shoe cabinet body is always under negative pressure state, blocking the dirty air inside the shoe cabinet from leaking out; while the other air is ejected to the corresponding shoe mouth below through the shoe mouth jet structure, and after being reflected by the sole, the jet diffuses, slows down, and refluxes in the ventilation blind area in front of the sole, and then carries the sweat-soaked air in the sole out of the shoe mouth, merges with the fresh air from the environment to replenish the shoe cabinet, and is sucked into the exhaust unit again to start a new round of circulation; this technology only uses one centrifugal fan to achieve "positive pressure external exhaust air and negative pressure internal environment jet drying", blocking the leakage and pollution of the dirty air in the shoe cabinet to the external environment of the shoe cabinet, and has good drying, dehumidification and deodorization effects.

[0003] However, the prior art still has some technical problems that need to be improved, such as:

[0004] ① An electric damper is still required. This technology realizes two operating modes: large-volume external exhaust and internal circulation drying through the opening and closing of the electric damper. The electric damper increases the manufacturing cost and maintenance complexity of the shoe cabinet.

[0005] ② There is still energy waste. This technology uses an electric heating module to heat the air to achieve jet drying of the soles of shoes. However, the electric heating module is set at the air inlet of the centrifugal fan, which causes the internal circulating drying airflow injected into the soles of shoes and the external exhaust air discharged into the outdoor atmosphere to be heated at the same time; the heat carried away by the external exhaust air is obviously a waste of energy. Summary of the invention

[0006] In order to solve the above-mentioned problems in the prior art, the present invention provides a shoe cabinet air bag assembly.

[0007] Another object of the present invention is to provide a shoe cabinet equipped with a shoe cabinet air bag assembly, which is equipped with positive pressure external sewage exhaust and negative pressure internal environment jet drying;

[0008] Another object of the present invention is to provide a control method for the shoe cabinet with positive pressure external exhaust air and negative pressure internal environment jet drying.

[0009] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0010] A shoe cabinet air bag assembly includes a positive pressure cavity for forming an air flow channel;

[0011] An extraction unit is connected to the cavity and is used to extract air into the cavity to form a positive pressure cavity;

[0012] The air outlet structure is arranged in the cavity and connected to the outside of the cavity, and is used to discharge part of the air in the cavity;

[0013] A jet unit is connected to the cavity and is used to discharge the air in the cavity;

[0014] The controller is used to control the operation of the shoe cabinet air bag assembly.

[0015] Furthermore, a partition and / or an electric heating unit through which air can pass is provided in the cavity, so as to separate the cavity into at least two interconnected positive pressure cavities.

[0016] Furthermore, the cavity is provided with two interconnected positive pressure chambers, namely a first positive pressure chamber and a second positive pressure chamber that are interconnected, for forming a flow channel for airflow;

[0017] The pumping unit is arranged in the first positive pressure chamber and is used to pump air into the chamber to form two positive pressure chambers;

[0018] An air outlet structure, disposed in the first positive pressure chamber, for discharging part of the air in the first positive pressure chamber;

[0019] The jet unit is communicated with the second positive pressure chamber and is used for discharging the air in the second positive pressure chamber.

[0020] Preferably, the exhaust unit is selected from a centrifugal fan.

[0021] Furthermore, the cavity body of the first positive pressure cavity is provided with an air inlet hole for assembling the extraction unit, and the air inlet of the extraction unit cooperates with the air inlet hole;

[0022] Preferably, the exhaust unit adopts a centrifugal fan; preferably, the centrifugal fan is a backward inclined outer rotor centrifugal fan.

[0023] A through hole for assembling an air outlet structure is provided on the wall of the first positive pressure chamber, one end of the air outlet structure is placed in the first positive pressure chamber, and the other end passes through the through hole;

[0024] The second positive pressure chamber is provided with a plurality of air outlet holes for discharging air flow; the air outlet holes are connected to the jet unit.

[0025] Furthermore, the air outlet structure is a thin-diameter throttling sewage discharge pipeline with a small inner diameter and a long length, which has a throttling effect on the external sewage discharge air.

[0026] Preferably, the narrow-diameter throttling sewage pipeline is a coilable and / or retractable pipe.

[0027] Preferably, the thin-diameter throttling sewage pipe is formed by connecting and combining multiple sections of detachable thin-diameter pipes.

[0028] Furthermore, the horizontal cross-section of the cavity is square, circular, elliptical or triangular.

[0029] Furthermore, the cavity is square and is further provided with a second partition; the second partition and the partition through which the airflow passes and / or the electric heating unit separate the cavity into a first positive pressure cavity and a second positive pressure cavity which are interconnected;

[0030] The second positive pressure chamber is L-shaped; the bottom plate of the second positive pressure chamber is provided with a plurality of air outlet holes connected to the jet unit for discharging airflow.

[0031] Furthermore, the air outlet through hole is connected to the jet unit via a pipeline; the pipeline is a coilable and / or retractable and positionable pipeline.

[0032] A shoe cabinet equipped with the shoe cabinet wind bag assembly for positive pressure external sewage exhaust and negative pressure internal environment jet drying, the shoe cabinet having at least one layer and at least one shoe placement cavity;

[0033] The shoe cabinet air bag assembly is arranged at the top of the shoe cavity; the air suction port of the exhaust unit is connected to the shoe cavity, and is used to draw air from the shoe cavity into the cavity to form a positive pressure cavity;

[0034] A fresh air inlet is provided on the bottom plate or the side plate of the shoe cavity;

[0035] The jet unit is used to discharge the air in the cavity and blow the air toward the sole of the shoe placed in the shoe cavity;

[0036] The air outlet structure together with the sewage discharge pipeline outside the shoe cabinet is used to discharge part of the air in the cavity.

[0037] Furthermore, the air outlet structure is provided with an external sewage air check valve;

[0038] Preferably, the fresh air inlet is arranged at a position away from the exhaust unit.

[0039] Furthermore, the shoe cabinet is provided with multiple layers of shoe cavities, and any at least two shoe cavities are provided with the shoe cabinet air bag assembly; each of the air outlet structures is connected to the sewage pipeline outside the shoe cabinet through an external sewage air check valve.

[0040] A method for using the shoe cabinet with positive pressure external exhaust and negative pressure internal environment jet drying comprises the following steps:

[0041] The extraction unit is started, and the air in the shoe cavity is sucked in by the extraction unit and is pressurized and discharged into the cavity of the shoe cabinet air bag assembly. The airflow discharged into the cavity is divided into two paths:

[0042] Part of the airflow, after being decompressed by the air outlet structure, enters the sewage pipe outside the shoe cabinet and is discharged into the outdoor environment, thus realizing positive pressure external sewage exhaust; the shoe cavity inside the shoe cabinet connected to the air intake of the exhaust unit generates negative pressure, which draws the air outside the shoe cabinet into the shoe cavity through the fresh air inlet, thus preventing the dirty air in the shoe cavity from being discharged into the indoor environment outside the shoe cabinet;

[0043] Another part of the airflow flows through the electric heating unit and / or the jet unit, and then blows air toward the soles of the shoes and boots placed in the shoe cavity through a number of jet nozzles. The dirty air and sweat vapor emitted by the shoes and boots merge with the fresh air outside the shoe cabinet supplied from the fresh air inlet, and are again sucked in by the exhaust unit, boosted and discharged into the cavity, starting a new round of circulation.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] The present invention provides a shoe cabinet with positive pressure external sewage exhaust and negative pressure internal environment, which uses the flow resistance of a thin-diameter throttling sewage exhaust pipeline to adjust the sewage exhaust ratio. Compared with the prior art, the shoe cabinet has outstanding substantial features and significant progress:

[0046] ① Improve reliability, economy and popularity

[0047] The present invention adopts a fine-diameter throttling sewage discharge pipeline to replace the electric damper in the prior art, thereby realizing two operating modes in parallel: positive pressure external sewage discharge and negative pressure internal environment jet drying, which greatly reduces the manufacturing cost and technical complexity of the shoe cabinet and greatly improves the technical reliability, economy and popularity of the shoe cabinet.

[0048] ②Increased the adaptability of the shoe cabinet to the external dirty air exhaust pipeline

[0049] The present invention sets a relatively long thin-diameter throttling sewage discharge pipeline. When the shoe cabinet is installed, the inner diameter, length and air flow resistance of the sewage air discharge pipeline outside the shoe cabinet are referred to to compensate and correct the length of the thin-diameter throttling sewage discharge pipeline, so that the proportion of the external sewage exhaust air volume in the total exhaust air volume of the centrifugal fan can be adjusted and controlled: if the sewage air discharge pipeline outside the shoe cabinet is short in length, thick in diameter, and has small resistance to sewage exhaust air flow, then the thin-diameter throttling sewage discharge pipeline in the first positive pressure chamber is retained longer; otherwise, it is retained shorter; the present invention sets a relatively long thin-diameter throttling sewage discharge pipeline in the first positive pressure chamber for cutting and shortening, thereby increasing the adaptability of the shoe cabinet positive-pressure external sewage exhaust and negative-pressure internal environment jet drying system to different sewage air discharge pipeline layouts, structures, lengths and resistances outside the shoe cabinet.

[0050] ③ Reduce the heat loss of the drying shoe cabinet

[0051] The present invention arranges a fine-diameter throttling sewage discharge pipeline in the first positive pressure chamber of the shoe cabinet and arranges an electric heating module at the through hole in the partition between the first positive pressure chamber and the second positive pressure chamber of the shoe cabinet; the sewage air discharged from the fine-diameter throttling sewage discharge pipeline is not heated, and all the heated air enters the second positive pressure chamber and is injected into the sole of the shoe; compared with the prior art, the energy waste caused by heating the external sewage air is eliminated, and the heat loss of the drying shoe cabinet is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a vertical cross-sectional view of a positive pressure external sewage exhaust and negative pressure internal environment jet drying shoe cabinet in Example 1, which utilizes the flow resistance of a thin-diameter throttling sewage exhaust pipeline to adjust the sewage air exhaust ratio;

[0053] Figure 2 A top view of a shoe drying cabinet with positive pressure external sewage exhaust and negative pressure internal environment jet, which utilizes the flow resistance of a narrow-diameter throttling sewage pipe to adjust the sewage air exhaust ratio;

[0054] Figure 3 It is a schematic diagram of the airflow operation of the shoe cabinet with positive pressure external exhaust air and negative pressure internal environment jet drying in Example 1;

[0055] Figure 4 A top view of a shoe drying cabinet with a positive pressure external sewage exhaust and a negative pressure internal environment, which utilizes the flow resistance of a thin-diameter throttling sewage exhaust pipeline to adjust the sewage air exhaust ratio of Example 2;

[0056] Figure 5 A top view of a shoe drying cabinet with a positive pressure external sewage exhaust and a negative pressure internal environment, which utilizes the flow resistance of a thin-diameter throttling sewage exhaust pipeline to adjust the sewage air exhaust ratio of Example 3;

[0057] Figure 6 A vertical cross-sectional view of a double-layer type jet drying shoe cabinet in Example 4, which utilizes the flow resistance of a thin-diameter throttling sewage pipe to adjust the sewage air discharge ratio, with positive pressure external sewage air discharge and negative pressure internal environment;

[0058] Figure 7 This is the operating airflow diagram of the double-layer type of embodiment 4, which uses the flow resistance of the fine-diameter throttling sewage pipe to adjust the sewage air discharge ratio, and has a positive pressure external sewage discharge and a negative pressure internal environment jet drying shoe cabinet;

[0059] Figure 8 This is a vertical cross-sectional view of a multi-layered, positive-pressure external sewage exhaust and negative-pressure internal environment jet drying shoe cabinet of Example 5, which utilizes the flow resistance of a thin-diameter throttling sewage exhaust pipeline to adjust the sewage air exhaust ratio. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the described embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0061] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and other similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0062] In the description of the present invention, it is necessary to understand that the terms "horizontal", "longitudinal", "length", "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0063] Definition: The direction perpendicular to the outer facade of the external corridor type equipment platform is set as the longitudinal direction, and the direction parallel to the outer facade of the external corridor type equipment platform is set as the transverse direction.

[0064] Example 1

[0065] like Figures 1 to 3 As shown, a shoe cabinet air bag assembly includes a positive pressure cavity 1 for forming a flow channel for air flow;

[0066] The pumping unit 2 is connected to the cavity and is used to pump air into the cavity to form a positive pressure cavity;

[0067] The air outlet structure 3 is arranged in the cavity and connected to the outside of the cavity, and is used to discharge part of the air in the cavity;

[0068] A jet unit 4 is connected to the cavity and is used to discharge the air in the cavity;

[0069] The controller is used to control the operation of the shoe cabinet air bag assembly.

[0070] A partition plate 11 through which air can pass and an electric heating unit 12 are arranged in the cavity 1, and are used to separate the cavity 1 into two interconnected positive pressure cavities.

[0071] Two interconnected positive pressure chambers, namely a first positive pressure chamber 13 and a second positive pressure chamber 14, are used to form a flow channel for air flow;

[0072] The cavity 1 of this embodiment is rectangular and is further provided with a second partition 15; the second partition 15, the partition 11 through which the airflow passes, and the electric heating unit 12 separate the cavity into a first positive pressure cavity 13 and a second positive pressure cavity 14 which are interconnected;

[0073] The second positive pressure chamber 14 is L-shaped;

[0074] The pumping unit 2 is disposed in the first positive pressure chamber 13 and is used to pump air into the chamber to form two positive pressure chambers;

[0075] The air outlet structure 3 is disposed in the first positive pressure chamber 13, and is used to discharge part of the air in the first positive pressure chamber;

[0076] The jet unit 4 is in communication with the second positive pressure chamber 14 and is used to discharge the air in the second positive pressure chamber.

[0077] In this embodiment, the exhaust unit 2 is selected from a centrifugal fan, and more specifically, a backward inclined outer rotor centrifugal fan.

[0078] The first positive pressure chamber 13 is provided with an air inlet hole 131 for assembling the extraction unit 2, and the air inlet of the extraction unit 2 cooperates with the air inlet hole 131;

[0079] A through hole for assembling the air outlet structure 3 is provided on the wall of the first positive pressure chamber 13, one end of the air outlet structure 3 is placed in the first positive pressure chamber, and the other end passes through the through hole;

[0080] The bottom plate of the second positive pressure chamber 14 is provided with a plurality of air outlet holes 141 for discharging air flow along the long side of the shoe cabinet; the air outlet holes 141 are connected to the jet unit 4. The jet nozzle of the jet unit 4 faces the shoe opening of the shoe to be dried in the shoe cavity of the shoe cabinet.

[0081] In this embodiment, the air outlet structure 3 is a thin-diameter throttling sewage discharge pipeline with a small inner diameter and a long length, which has a throttling effect on the external sewage discharge air.

[0082] The narrow-diameter throttling sewage pipe is a coilable and / or retractable pipe.

[0083] This embodiment sets a relatively long thin-diameter throttling sewage discharge pipeline. When the shoe cabinet is installed, the length of the thin-diameter throttling sewage discharge pipeline is compensated and corrected with reference to the inner diameter, length and airflow resistance of the sewage air discharge pipeline outside the shoe cabinet, so that the proportion of the external sewage air volume in the total exhaust volume of the centrifugal fan can be adjusted and controlled. If the sewage air discharge pipeline outside the shoe cabinet is short in length, thick in diameter, and has a small resistance to sewage air flow, the thin-diameter throttling sewage discharge pipeline in the first positive pressure chamber is kept longer; otherwise, it is kept shorter; the present invention sets a relatively long thin-diameter throttling sewage discharge pipeline in the first positive pressure chamber for cutting and shortening, thereby increasing the adaptability of the shoe cabinet positive pressure external sewage discharge air negative pressure internal environment jet drying system to different sewage air discharge pipeline layouts, structures, lengths, and resistances outside the shoe cabinet.

[0084] Example 2

[0085] The technical principles of this embodiment are the same as those of Example 1. Both embodiments are based on the principle of "using only one centrifugal fan to simultaneously drive two air paths, namely, the positive pressure external exhaust air and the negative pressure internal environment jet drying". Three cavities, namely, the first positive pressure chamber 13, the second positive pressure chamber 14 and the shoe chamber 51, are arranged. A fine-diameter throttling exhaust pipe is arranged in the first positive pressure chamber 13 to replace the electric damper in the prior art, and the electric heating unit 12 is arranged in the air flow channel after passing through the first positive pressure chamber 13 to reduce the heat carried by the external exhaust air.

[0086] like Figure 4 As shown, the difference of this embodiment is that the second positive pressure chamber 14 is arranged along the long side of the shoe cabinet from the rear of the first positive pressure chamber 13 in embodiment 1 to the front of the first positive pressure chamber 13; during operation, part of the airflow in the first positive pressure chamber 13 flows through the electric heating unit 12, is heated and becomes dry air with reduced relative humidity and increased drying capacity, and then flows into the second positive pressure chamber 14, passes through a plurality of jet nozzles on the bottom of the second positive pressure chamber 14, which are located in front of the shoe cabinet and arranged along the long side of the shoe cabinet, and is injected into the shoe opening of the shoes to be dried, heats and dries the shoes and brings out the dirty air and foot sweat vapor in the shoes, and then merges with the fresh air outside the shoe cabinet replenished from the fresh air inlet, is sucked in again by the centrifugal fan, and starts a new round of circulation.

[0087] The thin-diameter throttling sewage pipe is composed of a plurality of detachable thin-diameter pipe sections connected and combined.

[0088] Example 3

[0089] The technical principles of this embodiment are the same as those of Example 1. Both embodiments are based on the principle of "using only one centrifugal fan to simultaneously drive two air paths, namely, the positive pressure external exhaust air and the negative pressure internal environment jet drying". Three cavities, namely, the first positive pressure chamber 13, the second positive pressure chamber 14 and the shoe chamber 51, are arranged. A fine-diameter throttling exhaust pipe is arranged in the first positive pressure chamber 13 to replace the electric damper in the prior art, and the electric heating unit 12 is arranged in the air flow channel after passing through the first positive pressure chamber 13 to reduce the heat carried by the external exhaust air.

[0090] like Figure 5 As shown, the difference of this embodiment is that the horizontal cross section of the cavity 1 is circular.

[0091] A partition 11 through which air can pass is provided in the cavity 1, and is used to separate the cavity 1 into two communicating positive pressure cavities.

[0092] The air outlet hole 141 is connected to the jet unit 4 via a pipeline; the pipeline is a coilable and / or retractable and positionable pipeline.

[0093] Example 4

[0094] like Figure 6-7 As shown, a shoe cabinet with positive pressure external sewage exhaust and negative pressure internal environment jet drying is provided with the shoe cabinet air bag assembly of embodiment 1, and the shoe cabinet has two layers and two shoe cavities;

[0095] The shoe cabinet air bag assembly is arranged at the top of the shoe cavity 51; the air suction port of the exhaust unit 2 is connected to the shoe cavity 51, and is used to draw the air in the shoe cavity 51 into the cavity 1 to form a positive pressure cavity;

[0096] A fresh air inlet 511 is provided on the bottom plate or the side plate of the shoe cavity 51;

[0097] In this embodiment, the fresh air inlet 511 is disposed at a position far away from the exhaust unit 2 .

[0098] The jet unit 4 is used to discharge the air in the cavity 1 and blow the air toward the sole of the shoe in the shoe cavity 51;

[0099] The air outlet structure 3 together with the sewage discharge pipeline outside the shoe cabinet is used to discharge part of the air in the cavity 1.

[0100] The air outlet structure 3 is provided with an external sewage air discharge check valve 31 .

[0101] In view of the fact that beriberi is contagious, this embodiment adopts a shoe cabinet with a single-layer positive pressure external sewage exhaust and negative pressure internal environment jet drying technology. This may cause the sewage exhaust from shoes and boots of different family members placed in the same shoe cavity 51 to mix during the drying process. The sewage exhaust from the shoes and boots of family members with beriberi is mixed and then injected into the shoes and boots of healthy members during recycling and drying, resulting in cross-infection of beriberi bacteria. This embodiment sets up a double-layer structure of positive pressure external sewage exhaust and negative pressure internal environment jet drying shoe cabinet, and arranges the shoes and boots of healthy members and members with beriberi in layers, and places them separately in two different shoe cavities where the drying airflow runs independently; and an external sewage air check valve 31 is set at the connection between the fine-diameter throttling sewage pipeline of the first positive pressure 13 corresponding to each shoe cavity and the sewage pipeline outside the shoe cabinet, so as to block the external sewage air of the drying operation layer from flowing back to the shoe cavity of the stopped drying layer, thereby blocking the cross-infection of beriberi bacteria.

[0102] The external sewage air check valve 31 of this embodiment can be a gravity type, a spring type, or an electric type.

[0103] A method for using a shoe cabinet with positive pressure external exhaust air and negative pressure internal environment jet drying comprises the following steps:

[0104] Start the extraction unit 2, which sucks the air in the shoe cavity 51 and discharges it into the cavity 1 of the shoe cabinet air bag assembly. The airflow discharged into the cavity 1 is divided into two paths:

[0105] Part of the airflow is decompressed by the air outlet structure 3 and then enters the sewage pipe outside the shoe cabinet and is discharged into the outdoor environment, thus realizing positive pressure external sewage exhaust. The shoe cavity 51 inside the shoe cabinet connected to the air inlet of the exhaust unit 2 generates negative pressure, which draws the air outside the shoe cabinet into the shoe cavity 51 through the fresh air inlet 511, thus preventing the dirty air in the shoe cavity 51 from being discharged into the indoor environment outside the shoe cabinet.

[0106] Another part of the airflow flows through the electric heating unit and / or the jet unit 4, and blows air toward the soles of the shoes and boots placed in the shoe cavity through a number of jet nozzles. The dirty air and foot sweat vapor emitted by the shoes and boots merge with the fresh air outside the shoe cabinet replenished from the fresh air inlet 511, and are again sucked in by the exhaust unit 2 and discharged into the cavity at a higher pressure, starting a new round of circulation.

[0107] Example 5

[0108] like Figure 8 As shown, the shoe cabinet of this embodiment is equipped with the positive-pressure external sewage exhaust and negative-pressure internal environment jet drying of the shoe cabinet air bag assembly of embodiment 1, which is similar to embodiment 4, except that the shoe cabinet has multiple layers and multiple shoe cavities 51; each shoe cavity 51 is provided with a shoe cabinet air bag assembly; and each air outlet structure 3 is connected to the sewage pipe outside the shoe cabinet through an external sewage exhaust check valve 31.

[0109] Since the present embodiment is provided with a plurality of shoe and boot drying layers, and each drying layer independently performs positive pressure external exhaust air and negative pressure internal environment jet drying, the present embodiment has a larger shoe and boot drying processing capacity and is more flexible.

[0110] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A shoe cabinet air bag assembly, characterized in that: A positive pressure cavity is included to form a flow channel for air flow; An extraction unit is connected to the cavity and is used to extract air into the cavity to form a positive pressure cavity; The air outlet structure is arranged in the cavity and connected to the outside of the cavity, and is used to discharge part of the air in the cavity; A jet unit is connected to the cavity and is used to discharge the air in the cavity; A controller, used to control the operation of the shoe cabinet air bag assembly; The air outlet structure is a thin-diameter throttling sewage discharge pipeline with a small inner diameter and a large length, which has a throttling effect on the external sewage discharge air; The cavity is provided with a partition plate and / or an electric heating unit through which air can pass, and is used to separate the cavity into at least two interconnected positive pressure cavities.

2. The shoe cabinet air bag assembly according to claim 1, characterized in that: The cavity is provided with two interconnected positive pressure chambers, namely a first positive pressure chamber and a second positive pressure chamber that are interconnected, for forming a flow channel for air flow; The pumping unit is arranged in the first positive pressure chamber and is used to pump air into the chamber to form two positive pressure chambers; An air outlet structure, disposed in the first positive pressure chamber, for discharging part of the air in the first positive pressure chamber; The jet unit is communicated with the second positive pressure chamber and is used for discharging the air in the second positive pressure chamber.

3. The shoe cabinet air bag assembly according to claim 2, characterized in that: The cavity body of the first positive pressure cavity is provided with an air inlet hole for assembling the exhaust unit, and the air inlet of the exhaust unit cooperates with the air inlet hole; preferably, the exhaust unit adopts a centrifugal fan; A through hole for assembling an air outlet structure is provided on the wall of the first positive pressure chamber, one end of the air outlet structure is placed in the first positive pressure chamber, and the other end passes through the through hole; The second positive pressure chamber is provided with a plurality of air outlet holes for discharging air flow; the air outlet holes are connected to the jet unit.

4. The shoe cabinet air bag assembly according to claim 1, characterized in that: The thin-diameter throttling sewage pipeline is a coilable and / or retractable pipeline; preferably, the thin-diameter throttling sewage pipeline is composed of a plurality of detachable thin-diameter pipeline sections connected in combination.

5. The shoe cabinet air bag assembly according to claim 4, characterized in that: The horizontal cross-section of the cavity is square, circular, elliptical or triangular.

6. The shoe cabinet air bag assembly according to claim 5, characterized in that: The cavity is square and is further provided with a second partition; the second partition and the partition through which the airflow passes and / or the electric heating unit separate the cavity into a first positive pressure cavity and a second positive pressure cavity which are interconnected; The second positive pressure chamber is L-shaped; the bottom plate of the second positive pressure chamber is provided with a plurality of air outlet holes connected to the jet unit for discharging airflow.

7. The shoe cabinet air bag assembly according to claim 1, characterized in that: The air outlet through hole is connected to the jet unit via a pipeline; the pipeline is a coilable and / or retractable and positionable pipeline.

8. A shoe cabinet equipped with the shoe cabinet air bag assembly according to any one of claims 1 to 7, with positive pressure external exhaust air and negative pressure internal environment jet drying, characterized in that: The shoe cabinet has at least one layer and at least one shoe storage cavity; The shoe cabinet air bag assembly is arranged at the top of the shoe cavity; the air suction port of the exhaust unit is connected to the shoe cavity, and is used to draw air from the shoe cavity into the cavity to form a positive pressure cavity; A fresh air inlet is provided on the bottom plate or the side plate of the shoe cavity; The jet unit is used to discharge the air in the cavity and blow the air toward the sole of the shoe placed in the shoe cavity; The air outlet structure together with the sewage discharge pipeline outside the shoe cabinet is used to discharge part of the air in the cavity.

9. The shoe cabinet with positive pressure external exhaust and negative pressure internal environment jet drying according to claim 8 is characterized in that: The air outlet structure is provided with an external waste air check valve; preferably, the fresh air inlet is arranged at a position away from the exhaust unit.

10. The shoe cabinet with positive pressure external exhaust and negative pressure internal environment jet drying according to claim 9, characterized in that: The shoe cabinet is provided with multiple layers of shoe cavities, and any at least two shoe cavities are provided with the shoe cabinet air bag assembly; each of the air outlet structures is connected to the sewage pipeline outside the shoe cabinet through an external sewage air check valve.

11. A control method for a shoe cabinet with positive pressure external exhaust and negative pressure internal environment jet drying as claimed in claim 8, characterized in that: The following steps are involved: The extraction unit is started, and the air in the shoe cavity is sucked in by the extraction unit and is pressurized and discharged into the cavity of the shoe cabinet air bag assembly. The airflow discharged into the cavity is divided into two paths: Part of the airflow, after being decompressed by the air outlet structure, enters the sewage pipe outside the shoe cabinet and is discharged into the outdoor environment, thus realizing positive pressure external sewage exhaust; the shoe cavity inside the shoe cabinet connected to the air intake of the exhaust unit generates negative pressure, which draws the air outside the shoe cabinet into the shoe cavity through the fresh air inlet, thus preventing the dirty air in the shoe cavity from being discharged into the indoor environment outside the shoe cabinet; Another part of the airflow flows through the electric heating unit and / or the jet unit, and then blows air toward the soles of the shoes and boots placed in the shoe cavity through a number of jet nozzles. The dirty air and sweat vapor emitted by the shoes and boots merge with the fresh air outside the shoe cabinet supplied from the fresh air inlet, and are again sucked in by the exhaust unit, boosted and discharged into the cavity, starting a new round of circulation.

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