Air nozzle adjustable mechanism in cavity

Abstract

The utility model belongs to the technical field of heating air knives, and particularly relates to a cavity inner air nozzle adjustable mechanism which comprises an air knife inner cavity, an air knife outer cavity, a direction adjusting knob, an air opening adjusting plate, an air outlet, a base, an air knife frame and an air knife installation structure. The bottom of the air knife rest is fixedly connected with a base, the air knife rest is open up and down, the air knife installation structure is placed in the air knife rest, the direction adjusting knob penetrates through and fixes the air knife installation structure and the air knife rest, an air knife outer cavity is formed in the inner space of the lower half portion of the air knife rest, and an air knife inner cavity is formed in the inner space of the air knife installation structure. An air outlet is formed in the top of the air knife mounting structure, an air opening adjusting plate is arranged at the air outlet, an opening formed by the air knife outer cavity and the air knife inner cavity is gradually reduced from bottom to top, and when air passes through the gradually-reduced air outlet duct, due to the fact that the sectional area of the duct is gradually reduced, the flow speed of the air can be gradually increased according to the fluid mechanics principle. Due to the increase of the flow speed, air can be blown out more quickly, and therefore efficient heat transfer is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating air knives, specifically an adjustable air nozzle mechanism in a chamber. Background Technique

[0002] The air knife body is generally in the shape of a long and narrow channel with a special flow guiding structure inside. Under the pressure of the heated air inside the air knife, a high-speed, uniform flat air flow is ejected from the air outlet of the air knife. This high-speed hot air flow can be used for various industrial operations such as drying, heating, and defrosting.

[0003] Currently, in the prior art, the wind speed distribution at the air outlet may be uneven. This will cause the wind force on the surface of the object being blown to be inconsistent in actual use, affecting the working effect. In addition, most of the existing air knives are fixed and non-adjustable, which limits the application scenarios of the air knife.

[0004] Therefore, an adjustable air nozzle mechanism in a chamber is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background technique, the utility model proposes an adjustable air nozzle mechanism in a chamber. Through the design of a tapered strip-shaped air outlet duct formed by the outer cavity and the inner cavity of the air knife, the gas flow rate will gradually increase, and the opening size and air outlet direction of the air outlet are adjusted through an adjustment device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: The adjustable air nozzle mechanism in a chamber of the utility model includes an air knife inner cavity, an air knife outer cavity, a direction adjustment knob, an air outlet adjustment plate, an air outlet, a base, an air knife frame, and an air knife installation structure;

[0007] The bottom of the air knife frame is fixedly connected with a base. The length of the base is equal to the length of the air knife, and the width of the base is greater than the width of the air knife. In this way, extra space can be used to open screw holes, and through cooperation with screws, the air knife can be fixed.

[0008] The air knife frame has openings at the top and bottom, so that the air knife installation structure can be placed inside the air knife frame. The lower half of the air knife installation structure coincides with the air knife frame, and the upper half of the air knife installation structure can be exposed.

[0009] The direction adjustment knob penetrates and fixes the air knife installation structure and the air knife frame. The direction adjustment knob is fixed on one side through penetration and also fixed on the other side. One side has a knob for controlling the angle of the air knife installation structure;

[0010] The internal space of the lower half of the air knife holder forms the outer cavity of the air knife, and the internal space of the air knife mounting structure forms the inner cavity of the air knife. An air outlet is provided at the top of the air knife mounting structure. The heated air enters from the outer cavity of the air knife and then enters the inner cavity of the air knife. The inner and outer cavities gradually form a tapered structure, and the gas blows out the heat through the tapered air outlet duct.

[0011] An air outlet adjusting plate is provided at the air outlet. The size of the gap at the air outlet can be adjusted through the air outlet adjusting plate. The smaller the gap, the higher the wind speed of the blown air, and the larger the gap, the lower the wind speed of the blown air.

[0012] Preferably, the air outlet adjusting plate is slidably connected to the top of the air knife mounting structure.

[0013] Preferably, the air outlet adjusting plate is slidably connected to the top of the air knife mounting structure,

[0014] Preferably, the opening formed by the outer cavity of the air knife and the inner cavity of the air knife gradually decreases from bottom to top.

[0015] Preferably, a sealing strip is fixedly connected to the bottom of the base.

[0016] Preferably, the rotation adjustment angle range of the air knife mounting structure is: 0 - 120°.

[0017] Preferably, the width adjustment range of the air outlet is: 0.5 mm - 5 mm.

[0018] Preferably, the maximum wind speed at the air outlet of the air knife is: 10 m / s.

[0019] Preferably, the air knife body is made of 304 stainless steel.

[0020] Advantages of the present utility model:

[0021] 1. The present utility model provides an adjustable air nozzle mechanism in the chamber. Through the design of the tapered strip-shaped air outlet duct formed by the outer cavity and the inner cavity of the air knife, when the gas passes through the tapered air outlet duct, due to the gradual reduction of the cross-sectional area of the duct, according to the principle of fluid mechanics, the gas flow rate will gradually increase. The increase in the flow rate enables the gas to carry away the heat more quickly, thus realizing efficient heat blowing.

[0022] 2. The present utility model provides an adjustable air nozzle mechanism in the chamber. By adjusting the device to adjust the opening size and the air outlet direction of the air outlet, when the opening of the air outlet becomes smaller, the cross-sectional area of the air flow passage decreases, and the air flow speed will increase. When the opening of the air outlet becomes larger, the cross-sectional area of the air flow passage increases, and the air flow speed will decrease. Description of the Drawings

[0023] The accompanying drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0024] Figure 1 is a perspective view of the present utility model;

[0025] Figure 2 is a perspective view of the present utility model;

[0026] Figure 3 is a perspective view of the present utility model;

[0027] Figure 4 is a sectional view of the present utility model;

[0028] Legend:

[0029] 1. Inner cavity of air knife; 2. Outer cavity of air knife; 3. Air outlet; 4. Direction adjustment knob; 5. Air outlet adjustment plate; 6. Base; 7. Air knife holder; 8. Air knife installation structure. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0031] The following gives specific embodiments.

[0032] Please refer to Figures 1-4, the present utility model provides an adjustable mechanism for air nozzles in a chamber, including an air knife inner cavity 1, an air knife outer cavity 2, a direction adjustment knob 4, an air outlet adjustment plate 5, an air outlet 3, a base, an air knife holder 7, and an air knife installation structure 8; the bottom of the air knife holder 7 is fixedly connected with a base, the length of the base is equal to the length of the air knife, and the width of the base is greater than the width of the air knife. In this way, extra space can be used to drill screw holes, and by cooperating with screws, the air knife can be fixed; the air knife holder 7 is open at the top and bottom, so that the air knife installation structure 8 can be placed inside the air knife holder 7. The lower half of the air knife installation structure 8 coincides with the air knife holder 7, and the upper half of the air knife installation structure 8 can be exposed; the direction adjustment knob 4 penetrates and fixes the air knife installation structure 8 and the air knife holder 7. The direction adjustment knob 4 is fixed on one side through penetration and is also fixed on the other side. One side has a knob for controlling the angle of the air knife installation structure 8; the internal space of the lower half of the air knife holder 7 forms the air knife outer cavity 2, and the internal space of the air knife installation structure 8 forms the air knife inner cavity 1. An air outlet 3 is opened at the top of the air knife installation structure 8. The heated air enters from the air knife outer cavity 2 and then enters the air knife inner cavity 1. The opening formed by the air knife outer cavity and the air knife inner cavity gradually narrows from bottom to top, and the gas blows out heat through the tapered air outlet duct. An air outlet adjustment plate 5 is provided at the air outlet 3. The air outlet adjustment plate 5 is provided with long strip-shaped screw holes, and the air outlet adjustment plate 5 can be fixed on the top of the air knife installation structure 8 through screws and can slide on it, thereby adjusting the air outlet adjustment plate 5. The size of the gap of the air outlet 3 can be adjusted through the air outlet adjustment plate 5. The smaller the gap, the higher the wind speed of the blown air, and the larger the gap, the lower the wind speed of the blown air. During operation, the bottom of the air knife holder 7 is fixedly connected with a base. The length of the base is consistent with that of the air knife, and the width is greater than that of the air knife. This is to provide space for drilling screw holes in the base. When the screws cooperate with these screw holes, the air knife can be fixed at a specific position, laying a foundation for the stable operation of the air knife.

[0033] The air knife installation structure 8 is placed inside the air knife holder 7, where the lower half coincides with the air knife holder 7, and the upper half can be partially exposed. This design ensures the stability of the air knife installation structure 8. The direction adjustment knob 4 penetrates and fixes the air knife installation structure 8 and the air knife holder 7. On one side, the knob can control the angle of the air knife installation structure 8. By adjusting the orientation of the air knife installation structure 8, specific requirements for the air outlet direction in different working scenarios can be met. Whether it is necessary to blow horizontally, dissipate heat vertically, or guide the air flow at a specific angle, it can be achieved through this direction adjustment knob 4.

[0034] The inner space of the lower half of the air knife holder 7 forms the outer air knife cavity 2, while the inner space of the air knife mounting structure 8 constitutes the inner air knife cavity 1. When the heated air enters the air knife system, it first flows into the outer air knife cavity 2. Subsequently, the air flow then enters the inner air knife cavity 1 smoothly. The opening formed by the outer air knife cavity and the inner air knife cavity gradually narrows from bottom to top. According to the principle of fluid mechanics, when the gas passes through this tapered air outlet duct, as the cross-sectional area of the duct gradually decreases, the gas flow rate will gradually increase. This enables the air knife to blow out heat at a higher speed, achieving functions such as efficient heat dissipation or purging.

[0035] At the top air outlet 3 of the air knife mounting structure 8, an air outlet adjustment plate 5 is provided. By adjusting the size of the gap of the air outlet 3, the wind speed of the blown air can be directly affected. When the gap of the air outlet 3 is narrowed, the cross-sectional area through which the air flow passes decreases. According to the principle of fluid continuity, at the same gas flow rate, the air flow speed will increase, and thus the wind speed of the blown air will be higher. This strong wind speed is suitable for scenarios that require rapid heat dissipation or strong purging. When the gap of the air outlet 3 is widened, the cross-sectional area through which the air flow passes increases, and the wind speed decreases accordingly. At this time, the blown air is softer and is suitable for blowing some fragile objects or occasions that require a relatively gentle air flow.

[0036] A sealing strip 6 is fixedly connected to the bottom of the base. The sealing strip 6 can largely prevent the hot air from leaking through the connecting gap, resulting in heat loss.

[0037] Furthermore, as Figures 1-4 shown, the air outlet adjustment plate 5 is slidably connected to the top of the air knife mounting structure 8. A slider is fixedly connected to the bottom of the air outlet adjustment plate 5, and a sliding groove is fixedly connected to the top of the air knife mounting structure 8. The slider can slide within the sliding groove. During operation, the air knife as a whole is fixed in a certain position. The air flows through the heated cavity and then flows out through the air outlet 3. At this time, the air outlet adjustment plate 5 comes into play. The staff can adjust the air outlet adjustment plate 5 to make the gap of the air outlet 3 larger or smaller. When the gap of the air outlet 3 is narrowed, the cross-sectional area through which the air flow passes decreases. According to the principle of fluid continuity, at the same gas flow rate, the air flow speed will increase, and thus the wind speed of the blown air will be higher. This strong wind speed is suitable for scenarios that require rapid heat dissipation or strong purging. When the gap of the air outlet 3 is widened, the cross-sectional area through which the air flow passes increases, and the wind speed decreases accordingly. At this time, the blown air is softer, and thus the wind speed can be regulated.

[0038] Working principle: The length of the base is equal to the length of the air knife, and the width of the base is greater than the width of the air knife. In this way, the extra space can be used to drill screw holes, and by cooperating with screws, the air knife can be fixed. The air knife mounting structure 8 can be placed inside the air knife holder 7. The lower half of the air knife mounting structure 8 coincides with the air knife holder 7, and the upper half of the air knife mounting structure 8 can be exposed. The direction adjustment knob 4 penetrates and fixes the air knife mounting structure 8 and the air knife holder 7. The direction adjustment knob 4 is fixed through one side and also fixed on the other side. One side has a knob for controlling the angle of the air knife mounting structure 8. The internal space of the lower half of the air knife holder 7 forms the outer air knife cavity 2, and the internal space of the air knife mounting structure 8 forms the inner air knife cavity 1. An air outlet 3 is provided at the top of the air knife mounting structure 8. The heated air enters from the outer air knife cavity 2 and then enters the inner air knife cavity 1. The opening formed by the outer air knife cavity and the inner air knife cavity gradually narrows from bottom to top. The gas blows out the heat through the tapered air outlet duct. An air outlet adjustment plate 5 is provided at the air outlet 3. The size of the gap of the air outlet 3 can be adjusted through the air outlet adjustment plate 5. The smaller the gap, the higher the wind speed of the blown air, and the larger the gap, the lower the wind speed of the blown air. The bottom of the air knife holder 7 is fixedly connected to the base. The length of the base is consistent with that of the air knife, while the width is greater than that of the air knife. This provides space for drilling screw holes in the base. When the screws cooperate with these screw holes 9, the air knife can be fixed in a specific position, laying a foundation for the stable operation of the air knife. The air knife mounting structure 8 is placed inside the air knife holder 7, where the lower half coincides with the air knife holder 7 and the upper half can be partially exposed. This design ensures the stability of the air knife mounting structure 8. The direction adjustment knob 4 penetrates and fixes the air knife mounting structure 8 and the air knife holder 7. On one side, the knob can control the angle of the air knife mounting structure 8. By adjusting the orientation of the air knife mounting structure 8, the specific requirements for the air outlet direction in different working scenarios can be met. Whether it is required to blow horizontally, dissipate heat vertically, or guide the air flow at a specific angle, it can be achieved through this direction adjustment knob 4. The internal space of the lower half of the air knife holder 7 forms the outer air knife cavity 2, and the internal space of the air knife mounting structure 8 constitutes the inner air knife cavity 1. When the heated air enters the air knife system, it first flows into the outer air knife cavity 2. Subsequently, the air flow then enters the inner air knife cavity 1. The opening formed by the outer air knife cavity and the inner air knife cavity gradually narrows from bottom to top. According to the principle of fluid mechanics, when the gas passes through this tapered air outlet duct, as the cross-sectional area of the duct gradually decreases, the gas flow rate will gradually increase.This enables the air knife to blow out heat at a higher speed, achieving functions such as efficient heat dissipation or purging. The air knife is fixed in a certain position as a whole. The air flows into the cavity after being heated and then flows out through the air outlet 3. At this time, the air outlet adjusting plate 5 comes into play. By adjusting the air outlet adjusting plate 5, the staff can make the gap of the air outlet 3 larger or smaller. When the gap of the air outlet 3 is adjusted to be smaller, the cross-sectional area of the airflow passing through decreases. According to the principle of fluid continuity, at the same gas flow rate, the airflow speed will increase, so that the blown air speed is higher. This strong wind speed is suitable for scenarios that require rapid heat dissipation or strong purging. When the gap of the air outlet 3 is adjusted to be larger, the cross-sectional area of the airflow passing through increases and the wind speed decreases accordingly. At this time, the blown air is softer, so that the wind speed can be regulated.

[0039] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. Air nozzle adjustable mechanism in the chamber; characterized in that: It includes an air knife inner cavity, an air knife outer cavity, a direction adjustment knob, an air outlet adjustment plate, an air outlet, a base, an air knife holder and an air knife installation structure; the base is fixedly connected to the bottom of the air knife holder, the air knife holder is open at both the top and the bottom, the air knife installation structure is placed inside the air knife holder, the direction adjustment knob penetrates and fixes the air knife installation structure and the air knife holder, the internal space of the lower half of the air knife holder forms the air knife outer cavity, the internal space of the air knife installation structure forms the air knife inner cavity, an air outlet is provided at the top of the air knife installation structure, and an air outlet adjustment plate is arranged at the air outlet.

2. The adjustable mechanism of the air nozzle in the chamber according to claim 1, wherein: The opening formed by the air knife outer cavity and the air knife inner cavity gradually narrows from bottom to top.

3. The adjustable mechanism of the air nozzle in the chamber according to claim 2, wherein: The air outlet adjustment plate is slidably connected to the top of the air knife installation structure.

4. The adjustable mechanism of the air nozzle in the chamber according to claim 3, wherein: A sealing strip is fixedly connected to the bottom of the base.

5. The adjustable mechanism of the air nozzle in the chamber according to claim 4, characterized in that: The rotation adjustment angle range of the air knife installation structure is: 0 - 120°.

6. The adjustable air nozzle mechanism in the chamber according to claim 5, characterized in that: The width adjustment range of the air outlet is: 0.5 mm - 5 mm.

7. The adjustable mechanism of the air nozzle in the chamber according to claim 6, wherein: The maximum wind speed at the air outlet of the air knife is: 10 m / s.

8. The adjustable mechanism of the air nozzle in the chamber according to claim 7, characterized in that: The air knife body is made of 304 stainless steel.

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