Double-manufactured cloth bag air pipe system

Abstract

The invention discloses a double-manufactured cloth bag air duct system, and particularly relates to the technical field of cloth bag air ducts, the double-manufactured cloth bag air duct system comprises a cloth bag air duct, and air outlets are formed in the upper part and the lower part of the cloth bag air duct; the volume adjusting part comprises a flexible separation layer and a tail end fixing point, the flexible separation layer is obliquely sewn in the cloth bag air pipe, an air inlet of the flexible separation layer is higher than the other end of the flexible separation layer, the tail end fixing point is used for sewing the flexible separation layer and the cloth bag air pipe, and the tail end fixing point and the closed tail end of the cloth bag air pipe are arranged in a spaced mode; a flexible separation layer is arranged in the cloth bag air pipe, a sealing guide piece is arranged on the flexible separation layer, the inclined flexible separation layer is arranged in the cloth bag air pipe, the tail end of the cloth bag air pipe supplying air downwards can keep certain stability under the condition that air pressure is insufficient, the shaking degree and the noise loudness are reduced, and the sealing guide piece and the flexible separation layer are combined for use. The working mode of upward air supply or downward air supply of the cloth bag air pipe can be flexibly adjusted, the cloth bag air pipe is a double-mode cloth bag air pipe, the application scene of the cloth bag air pipe is more flexible, and the position of the air pipe does not need to be detached or changed.

Description

Technical Field

[0001] The present invention relates to the technical field of fabric ducts, and more specifically, to a dual-mode fabric duct system. Background Art

[0002] A fabric duct is a flexible air distribution system made of special fibers, used to replace traditional air supply ducts, air valves, diffusers, thermal insulation materials, and other air outlet end systems.

[0003] Due to its unique flexible pipe wall, when the air flow flows from the inlet of the duct to the end, the flexible pipe wall shrinks inward due to the reduction of the wind pressure, resulting in certain vibrations. Along with the vibrations, there are also noises and vibrations of the connectors. If not dealt with in time, it will affect the safety of the air distribution environment. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a dual-mode fabric duct system. The technical problem to be solved by the present invention is: to reduce problems such as duct shaking and unsmooth air outlet caused by the reduction of wind pressure at the end of the duct.

[0005] To achieve the above object, the present invention provides the following technical solution: A dual-mode fabric duct system includes a fabric duct with a downward air outlet opened at the lower part; a volume adjustment member, including a flexible separation layer and an end fixing point. The flexible separation layer is sewn obliquely inside the fabric duct, and one end of the flexible separation layer close to the air inlet of the fabric duct is higher than the other end. The end fixing point is used to sew the flexible separation layer and the fabric duct, and there is a spaced arrangement between the end fixing point and the closed end of the fabric duct.

[0006] In a preferred embodiment, the starting end of the flexible separation layer is set higher than the central horizontal plane of the fabric duct.

[0007] In a preferred embodiment, an air outlet is opened at the upper part of the fabric duct.

[0008] In a preferred embodiment, there is a spaced arrangement between the starting end of the flexible separation layer and the starting end of the fabric duct. The fabric duct is hermetically connected to the air outlet of the fan. A sealing guide member is provided on the flexible separation layer, and the sealing guide member is used to guide the air flow output by the fan to be output from the upper air outlet or the lower air outlet of the fabric duct.

[0009] In a preferred embodiment, the sealing guide includes a guiding surface, a first zipper, a second zipper, and a third zipper. The guiding surface is fixed to the starting end of the flexible separation layer, and the outer edge of the guiding surface is sewn to the first zipper. The third zipper is sewn to the upper inner wall of the cloth bag air duct, and the first zipper can be zipped together with the third zipper. The guiding surface, the flexible separation layer, and the cloth bag air duct form an enclosed space for the air flow to discharge downward. The second zipper is fixed to the lower inner wall of the cloth bag air duct, and the first zipper can be zipped together with the second zipper. The guiding surface, the flexible separation layer, and the cloth bag air duct form an enclosed space for the air flow to discharge upward.

[0010] In a preferred embodiment, the flexible separation layer is in a relaxed and drooping state under the condition of no wind.

[0011] In a preferred embodiment, a flexible expansion layer for increasing the area of the flexible separation layer when unfolded is provided on the flexible separation layer. The flexible expansion layer is folded outward in the lower direction of the cloth bag air duct, and the two sides of the flexible expansion layer are folded into a Z shape.

[0012] In a preferred embodiment, the shape of the flexible expansion layer after folding is trapezoidal. The starting end of the flexible expansion layer is close to the air inlet of the cloth bag air duct, and the side length of this end is longer than the end of the flexible expansion layer after folding. The starting end and the ending end of the flexible expansion layer are evenly transitioned.

[0013] In a preferred embodiment, the flexible expansion layer includes a folding wing and a stress opening. The length of the folding wing disposed on the lower side of the flexible separation layer is greater than the length of the stress opening, and the stress opening is disposed facing the upper side of the flexible separation layer.

[0014] The technical effects and advantages of the present invention:

[0015] 1. An inclined flexible separation layer is provided inside the cloth bag air duct, which can keep a certain stability at the end of the cloth bag air duct for downward air supply under the condition of insufficient air pressure, reducing the degree of jitter and the loudness of noise.

[0016] 2. The combined use of the sealing guide and the flexible separation layer enables the cloth bag air duct to flexibly adjust the working mode of upward air supply or downward air supply. It is a dual-mode cloth bag air duct with more flexible application scenarios, and there is no need to disassemble and adjust the position of the air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the technical solutions of the present invention, and constitute a part of the present invention. The embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0018] Figure 1 It is an external view of the cloth bag air duct of the present invention.

[0019] Figure 2-1 It is a schematic diagram of the downward air outlet of the cloth bag air duct after the volume adjustment member participates in the present invention.

[0020] Figure 2-2 Schematic diagram of the downward air outlet of the cloth bag air duct after the flexible separation layer participates in the present invention.

[0021] Figure 2-3 Schematic diagram of the upward air outlet of the cloth bag air duct after the volume adjusting member participates in the present invention.

[0022] Figure 2-4 Schematic diagram of the upward air outlet of the cloth bag air duct after the flexible separation layer participates in the present invention

[0023] Figure 3 Schematic diagram of the layout position of the flexible separation layer in the present invention.

[0024] Figure 4 Schematic diagram of the upwardly arched flexible separation layer in the present invention.

[0025] Figure 5 Schematic diagram of the upwardly arched flexible separation layer with a sealing guide member in the present invention.

[0026] Figure 6 Schematic diagram of the downwardly arched flexible separation layer in the present invention

[0027] Figure 7 Cross-sectional view of the sealing guide member in the present invention.

[0028] Figure 8 Stereogram of the sealing guide member in the present invention.

[0029] Figure 9 Schematic diagram of the slightly unfolded flexible expansion layer in the present invention.

[0030] Figure 10 Schematic diagram of the flexible expansion layer with the starting end larger than the ending end in the present invention.

[0031] Reference numerals: 10, cloth bag air duct; 20, volume adjusting member; 21, flexible separation layer; 22, end fixing point; 23, flexible expansion layer, 231, folding wing; 232, force receiving port; 30, sealing guide member; 31, guiding surface; 32, zipper one; 33, zipper two; 34, zipper three. Detailed implementation manners

[0032] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, those of ordinary skill in the art can propose various structural forms and implementation manners that can be mutually replaced. Therefore, the following detailed implementation manners and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0033] Such as Figures 1-10, to solve the problem that the overall duct vibrates due to low air pressure at the end of the cloth duct 10, this solution stabilizes the air pressure and reduces the jitter of the cloth duct 10 by narrowing the flowable space of the air pressure inside the cloth duct 10.

[0034] Embodiment 1

[0035] The diameters of the front and rear ends of the cloth duct 10 are equal. During production, a rectangular flame-retardant fiber cloth is cut out and sewn. A number of lower air outlets are provided on the lower side of the cloth duct 10, and hooks are sewn on the upper side for installation on the upper layer of the factory area.

[0036] The volume adjustment member 20 includes a flexible separation layer 21 and an end fixing point 22. The flexible separation layer 21 is an isosceles trapezoidal flame-retardant fiber cloth. The end fixing point 22 is used to fix the end of the flexible separation layer 21 to the side wall of the cloth duct 10. The end fixing point 22 is arranged near the lower side of the cloth duct. The two trapezoidal hypotenuses of the flexible separation layer 21 are obliquely sewn to the inner wall of the cloth duct 10. It can be approximately regarded that the flexible separation layer 21 divides the internal space of the cloth duct 10 into two parts. At this time, it is set that the starting end of the flexible separation layer 21 is higher than the end fixing point 22. As Figure 3 shown, from the cross-section, the extension direction of the flexible separation layer 21 is inclined relative to the axis of the cloth duct 10. Therefore, the air flow output by the fan is introduced from the starting ends of the flexible separation layer 21 and the cloth duct 10. Taking downward air outlet as an example, as the volume of the space surrounded by the inclined flexible separation layer 21 and the cloth duct 10 gradually decreases, the flow rate of the air flow after the pressure is stabilized can be reduced, thereby reducing the jitter frequency generated at the end of the cloth duct 10.

[0037] Preferably, a certain distance, such as 200 mm, is provided between the end fixing point 22 and the closed end of the cloth duct 10 to facilitate the construction of the inclined flexible separation layer 21.

[0038] Preferably, the starting end of the flexible separation layer 21 should be sewn above the central axis horizontal plane of the cloth duct 10 to ensure that the diameter of the air inlet surrounded by the flexible separation layer 21 and the lower side of the cloth duct 10 is larger while being smaller than the original air inlet diameter of the cloth duct 10.

[0039] Embodiment 2

[0040] During actual application, the following problem was also found: When the flexible separation layer 21 is sewn in the cloth duct 10 in a taut state, when the air flow entering the cloth duct 10 flows between the straight flexible separation layer 21 and the arc-shaped and flexible inner wall of the cloth duct 10, the air resistance on its upper and lower sides is different, resulting in a disordered air flow.

[0041] To solve this problem, the present solution has the following design: increase the area of the flexible separation layer 21, and sew the flexible separation layer 21 inside the fabric duct 10. When there is no wind, the entire flexible separation layer 21 is in a drooping state. Then, when the airflow output by the fan enters the enclosed space between the flexible separation layer 21 and the fabric duct 10, the flexible separation layer 21 can be forced upward by the airflow to supply air. In this way, both the upper and lower sides of the enclosed space are arc-shaped. Although the upper and lower sides are not absolutely symmetrical, compared with the case where the upper and lower sides are a plane and an arc surface respectively, the design with both upper and lower sides being arc-shaped is more stable for the fabric duct 10.

[0042] When the above design is actually applied, there is still a problem, that is, although the flexible separation layer 21 is sewn inside the fabric duct 10, the air inlet of the flexible separation layer 21 does not completely coincide with the air inlet of the fabric duct 10, and the air inlet of the fabric duct 10 extends outside the air inlet of the flexible separation layer 21. This means that when the fabric duct 10 connected to the fan outlet receives the airflow, the airflow will be divided into two by the flexible separation layer 21. Although the fabric duct 10 is flexible and stackable, and the inlet of the space enclosed by the flexible separation layer 21 and the fabric duct 10 can be connected to the fan outlet by an interface part, such operation is rather cumbersome, and the interface part needs to be designed separately, so it is not recommended.

[0043] To solve the above problem, a sealing and guiding part 30 is additionally designed, which includes a guiding surface 31, a zipper one 32, a zipper two 33 and a zipper three 34. The guiding surface 31 is sewn and connected to the end edge of the air inlet end of the flexible separation layer 21. The outer edge of the guiding surface 31 is sewn with the zipper one 32. An arc-shaped zipper three 34 is sewn on the upper inner wall of the fabric duct 10, and an arc-shaped zipper two 33 is sewn on the lower inner wall. The zipper one 32 can be zipped with the zipper two 33 or the zipper three 34 to change the air guiding direction of the guiding surface 31. At this time, the fabric duct 10 is still connected to the fan outlet by the existing connection means. When the guiding surface 31 is connected to the zipper three 34, the airflow flows from the fan to the lower side of the flexible separation layer 21. When the guiding surface 31 is connected to the zipper two 33, the airflow flows from the fan to the upper side of the flexible separation layer 21.

[0044] In this way, while ensuring the connection between the fabric duct 10 and the fan, it is also possible to guide the airflow to the upper side or the lower side of the flexible separation layer 21.

[0045] When the area of the flexible separation layer 21 is large enough, in the upper air supply state, the guiding surface 31 is connected to the second zipper 33 on the lower side of the pipe opening. Under the action of wind force, the flexible separation layer 21 will adhere to the inner lower wall of the cloth bag air duct 10 and block the lower air outlet. Similarly, in the upper air supply state, the guiding surface 31 is connected to the third zipper 34 on the upper side of the pipe opening. Under the action of wind force, the flexible separation layer 21 will adhere to the inner upper wall of the cloth bag air duct 10 and block the upper air outlet. In this way, the flexible switching between the upper and lower air supply modes is realized.

[0046] For example, in summer, cold air is heavier, so the upper air outlet is selected for air supply. The cold air sinks to the activity area, absorbs heat and then gradually returns to the upper part of the room. This configuration helps the effective distribution of cold air and the discharge of hot air. In winter, the lower air outlet is usually used because in winter, warm air needs to be directly sent to the lower part of the room or the activity area of people and livestock to ensure the comfortable temperature in the activity area of people and livestock. Since warm air has a lower density and naturally rises, the lower air outlet helps to keep the room warm.

[0047] For example, the lower air supply is for summer air supply and the upper air supply is for winter. By zipping up the first zipper 32 at the entrance, the summer or winter air supply mode can be changed.

[0048] For another example, the upper and lower air outlets do not necessarily need to work with hot and cold air. Room temperature gas can also be passed through. For example, in summer, the upper air outlet can be used to discharge hot air to help reduce the temperature of the breeding pond, which is especially important for tropical fish. At the same time, passing room temperature gas through the upper air outlet also helps air circulation and reduces the accumulation of harmful gases generated due to high temperature in the breeding pond. In winter, oxygen can also be passed through the lower air outlet to help ensure the oxygen supply at the bottom of the breeding pond, which is very important for the healthy growth of fish. Sufficient oxygen can reduce the stress response of fish and improve their disease resistance.

[0049] Embodiment 3

[0050] When the air flow can be discharged through the upper air outlet opened on the upper side of the cloth bag air duct 10, because the flexible separation layer 21 is inclined, at this time, the gas entering the upper layer of the flexible separation layer 21 will have a larger space volume, lower air pressure, and poorer air flow stability. Although the flexible separation layer 21 can arch downward, in terms of analysis, the volume of the upper space of the flexible separation layer 21 is still larger at the air inlet end than at the end. To solve this problem, the present application has the following design:

[0051] The middle part of the flexible separation layer 21 is folded downward to form a flexible expansion layer 23. The flexible expansion layer 23 and the flexible separation layer 21 are integrally formed. For the convenience of description, it is separately separated for explanation:

[0052] The two sides of the flexible expansion layer 23 are Z-shaped edges. Since it is folded downwards, when the air flow enters the lower enclosed space between the flexible separation layer 21 and the cloth bag air duct 10, the flexible expansion layer 23 is not easily unfolded. When the air flow enters the upper enclosed space between the flexible separation layer 21 and the cloth bag air duct 10, the flexible expansion layer 23 is more easily unfolded. Diverging along this idea, the structures shown in Figure 9 , Figure 10 are designed. The folding area of the flexible expansion layer 23 on the air inlet side of the cloth bag air duct 10 is larger, and the folding area at the end of the cloth bag air duct 10 is smaller. Moreover, the beginning and end of the flexible expansion layer 23 are evenly transitioned. When the air flow enters the enclosed space between the upper part of the flexible separation layer 21 and the cloth bag air duct 10, with the complete unfolding of the flexible expansion layer 23, the volume of the enclosed space near the end is smaller than the enclosed area at the air inlet end, which is also approximately equivalent to reducing the space at the end of the cloth bag air duct 10, so as to stabilize the wind pressure at the end of the cloth bag air duct 10.

[0053] Furthermore, the flexible expansion layer 23 includes folding wings 231 and force-receiving openings 232. The folding wings 231 are the folded Z-shaped edges, and the folded length is about three times the length of the force-receiving openings 232. When the flexible expansion layer 23 is in the folded state, the force-receiving openings 232 will be exposed above the flexible separation layer 21, so that the wind force can promote the unfolding of the flexible expansion layer 23 from the upper part of the flexible separation layer 21, while the overly large folding wings 231 can reduce the probability that the wind force at the lower part of the flexible separation layer 21 pushes the flexible expansion layer 23 away.

[0054] Although the unfolded flexible expansion layer 23 can also achieve reducing the volume at the end of the cloth bag air duct 10, the non-unfolded flexible expansion layer 23 is more stable for the downward air-sending cloth bag air duct 10.

[0055] It should be noted that the above designs are all based on a certain input wind pressure. Excessive or too small wind pressure can cause the vibration of the entire cloth bag air duct 10.

[0056] Example 4

[0057] In parallel with Example 3, further expand the area of the flexible separation layer 21, so that when the flexible separation layer 21 arches upwards or downwards, it can be in contact with the upper and lower inner walls of the corresponding cloth bag air duct 10. By reducing the diameter of the air inlet and expanding the volume of the space where the flexible separation layer 21 is located, the technical effect of stabilizing the wind pressure can also be achieved.

[0058] The technical scope of the present invention is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A double bag air duct system, characterized in that include: The bag air duct (10) has an air outlet facing downwards at its lower part; The volume adjustment member (20) comprises a flexible separation layer (21) and an end fixing point (22), wherein the flexible separation layer (21) is obliquely sewn inside the bag air duct (10), and one end of the flexible separation layer (21) close to the air inlet of the bag air duct (10) is higher than the other end, and the end fixing point (22) is used to sew the tail of the flexible separation layer (21) onto the bag air duct (10).

2. A double bag air duct system according to claim 1, characterized in that: The starting end of the flexible separation layer (21) is arranged higher than the central horizontal plane of the bag air duct (10).

3. The double bag air duct system according to claim 1, characterized in that: An air outlet is provided at the upper portion of the bag air duct (10).

4. A double bag air duct system according to claim 3, characterized in that: The starting end of the flexible separation layer (21) and the starting end of the bag air duct (10) are arranged at a distance, the bag air duct (10) and the air outlet of the fan are tightly connected, and a sealing guide (30) is arranged on the flexible separation layer (21), and the sealing guide (30) is used to guide the airflow output by the fan to be output from the upper air outlet or the lower air outlet of the bag air duct (10).

5. A double bag air duct system according to claim 4, characterized in that: The sealing guide (30) comprises a guide surface (31), a zipper 1 (32), a zipper 2 (33) and a zipper 3 (34); the guide surface (31) and the beginning of the flexible separation layer (21) are fixed, and the outer edge of the guide surface (31) and the zipper 1 (32) are sewn together; The zipper three (34) is sewn on the upper inner wall of the bag air duct (10), the zipper one (32) can be pulled together with the zipper three (34), and the guide surface (31), the flexible separation layer (21) and the bag air duct (10) form an enclosed space for the air flow to be discharged downwards; A second zipper (33) is sewn to the inner wall of the lower part of the bag air duct (10); the first zipper (32) can be pulled together with the second zipper (33); the guide surface (31), the flexible separation layer (21) and the bag air duct (10) form an enclosed space for the airflow to be discharged upward.

6. A double bag air duct system according to claim 1 or 5, characterized in that: The flexible separation layer (21) is in a relaxed and drooping state in a windless state.

7. A double bag air duct system according to claim 6, characterized in that: The flexible separation layer (21) is provided with a flexible expansion layer (23) for increasing the area of ​​the flexible separation layer (21) when unfolded. The flexible expansion layer (23) is folded outwardly toward the lower part of the bag air duct (10), and the two sides of the flexible expansion layer (23) are both folded into a Z shape.

8. The double bag air duct system according to claim 7, characterized in that: The flexible expansion layer (23) comprises a folding wing (231) and a force-bearing opening (232); the length of the folding wing (231) arranged on the lower side of the flexible separation layer (31) is greater than the length of the force-bearing opening (232); and the force-bearing opening (232) is arranged toward the upper side of the flexible separation layer (21).

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