Air passage structure and protective door

Abstract

The utility model relates to an airway structure which comprises an airway body, an air hole is formed in the airway body, the airway body is connected with an adjusting plate capable of relatively moving, an adjusting hole is formed in the adjusting plate, and the adjusting hole and the air hole at least partially coincide. The utility model further relates to the protective door. The adjusting plate is opposite to the gas pipe main body, so that the overlapping area of the adjusting holes in the adjusting plate and the gas holes in the side face of the gas pipe main body is changed, the area of gas passing through the holes is reduced, the initial speed of the gas ejected out of the holes is higher, and therefore it is guaranteed that the ejected gas can cover a wider range.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ovens, in particular to an air duct structure and a protective door. BACKGROUND

[0002] In industrial production, an oven is used to maintain the environment in the oven by circulating high-temperature gas. The common way of circulating high-temperature gas is to set the gas outlet and the gas inlet on the same side. The high-temperature gas is sprayed out of the gas outlet and then sucked into the gas inlet.

[0003] However, since the gas inlet in the oven is in a negative pressure state, on the one hand, if the gas sprayed out of the gas outlet is not under sufficient initial pressure, it is easy to be directly sucked away by the gas inlet, and it is difficult to achieve the purpose of heat transfer. On the other hand, the gas in the gas outlet is sprayed into the oven at high pressure and high speed. The high-speed and high-temperature gas is also attracted by the negative pressure of the gas inlet, so that the sprayed gas is affected by resistance, thereby affecting the flow rate of the sprayed gas, and further affecting the area that can be covered by the gas, resulting in difficulty in maintaining consistent temperature in the oven, which affects the use of the oven. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems, the present application provides the following technical solutions:

[0005] On the one hand, the present application provides an air duct structure, which comprises a gas pipe main body, a gas hole is formed in the gas pipe main body, the gas pipe main body is connected with an adjusting plate capable of relative movement, an adjusting hole is formed in the adjusting plate, and the adjusting hole at least partially coincides with the gas hole.

[0006] In one embodiment, the gas pipe main body is in the shape of a cube, and the gas hole is formed in at least two continuous side surfaces of the gas pipe main body.

[0007] In one embodiment, the adjusting plate comprises at least two sub-plates, and each sub-plate is arranged on a side surface.

[0008] In one embodiment, the adjusting plate has a plurality of continuous sub-plates, and the adjusting plate is arranged on a plurality of side surfaces.

[0009] In one embodiment, the gas pipe main body and the adjusting plate are connected in a sliding manner.

[0010] In one embodiment, a sliding groove is formed in the adjusting plate, a screw is installed on the side surface, and the screw is arranged in the sliding groove.

[0011] In one embodiment, one end of the gas pipe main body has an open end, and a sealing ring is arranged around the outside of the open end.

[0012] On the other hand, the present application provides a protective door, which comprises:

[0013] a door body; and

[0014] The air passage structure provided by the above embodiment is connected to the door body.

[0015] In one embodiment, the air passage structure is connected to the door body through a mounting bracket.

[0016] In one embodiment, an adjusting groove is formed in the mounting bracket, and the air passage structure is moved relative to the door body.

[0017] The present application has at least the following beneficial effects:

[0018] In the present application, by moving the adjusting plate relative to the air tube body, the overlapping area of the adjusting hole on the adjusting plate and the air hole on the air tube body is changed, and the area of the gas passing hole is reduced, which will make the initial speed of the gas ejected from the hole greater, thereby ensuring that the ejected gas can cover a wider range. In addition, the adjusting hole and the air hole can also be misaligned to close the air passage structure to limit the discharge of gas from the air passage structure. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The present application provides a three-dimensional structure diagram of an air passage.

[0020] Figure 2 The present application provides a three-dimensional structure diagram of a protective door.

[0021] Figure 3 The present application provides an exploded diagram of a protective door.

[0022] Figure 4 The present application provides a three-dimensional structure diagram of an air tube body.

[0023] Figure 5 The present application provides a three-dimensional structure diagram of an air tube body. Figure 4 The present application provides a three-dimensional structure diagram of an air tube body.

[0024] REFERENCE SIGNS:

[0025] 11, door body; 12, air passage; 13, connecting bracket;

[0026] 121, air tube body; 122, adjusting plate;

[0027] 1211, open end; 1212, sealing ring; 1213, mounting seat; 1214, air hole; 1215, mounting hole;

[0028] 1221, adjusting hole; 1222, sliding groove. DETAILED DESCRIPTION

[0029] In order to make the above objectives, features and advantages of the present application more clear and easily understood, the detailed description of the specific embodiments of the present application will be described below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways without some of the specific details described herein, and it is understood that the present application is not limited to the specific embodiments described below. In other instances, well-known methods have not been described in detail in order to avoid unnecessarily obscuring the present application.

[0030] In the description of the present application, it should be understood that, if there are terms such as "length", "width", "thickness", "upper", "lower", "vertical", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0031] In addition, if the terms "first", "second", "third" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features defined as "first", "second", "third" can be explicitly or implicitly included at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0032] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless specifically defined and limited otherwise, if there is a description of a first feature on or above or below a second feature, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature can be above or above or above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature can be below or below or below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0034] It should be noted that if an element is referred to as being "fixed" or "set" or "provided" on another element, it can be directly on the other element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0035] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0036] Referring to Figures 1-3 As shown in the drawings, in some embodiments of the present application, a protective door is provided, comprising a door body 11 and an air duct 12 connected to the door body 11. Wherein the air duct 12 comprises an air pipe body 121, a plurality of air holes 1214 are formed on the side surface of the air pipe body 121, and a plurality of adjusting plates 122 capable of relative movement are attached to the side surface, a plurality of adjusting holes 1221 are formed on the adjusting plates 122, and the adjusting holes 1221 at least partially coincide with the air holes 1214. The adjusting holes 1221 and the air holes 1214 at least partially coincide specifically means that the adjusting holes 1221 and the air holes 1214 can partially coincide or completely coincide. Specifically, the connection between the air duct 12 and the door body 11 is realized by installing a support 13.

[0037] It can be understood that the adjustment hole 1221 is in communication with the air hole 1214 when the adjustment hole 1221 coincides with the air hole 1214. The adjustment plate 122 can move relative to the trachea body 121, so that the area of the adjustment hole 1221 in communication with the air hole 1214 changes. Partial coincidence means that the adjustment hole 1221 and the air hole 1214 are misaligned, but gas can still flow through the adjustment hole 1221 and the air hole 1214. Full coincidence means that the adjustment hole 1221 and the air hole 1214 are concentrically arranged, at which time the area through which the gas passes through the adjustment hole 1221 and the air hole 1214 is the largest. It can be understood that the area through which the gas passes through the adjustment hole 1221 and the air hole 1214 when partially coincident is smaller than the area through which the gas passes through the adjustment hole 1221 and the air hole 1214 when fully coincident. Moreover, the flow rate of the gas depends on the pressure of the gas and the area through which the gas passes. Under the premise of ensuring that the pressure of the gas is equal, the smaller the area through which the gas passes, the faster the flow rate of the gas. In combination with the present solution, the flow rate of the gas when partially coincident is greater than the flow rate of the gas when fully coincident, so that the distance of the gas injection when partially coincident is greater than the distance of the gas injection when fully coincident. In the present solution, the area through which the gas passes through the adjustment hole 1221 and the air hole 1214 can be adjusted by adjusting the position of the adjustment plate 122, so as to adjust the flow rate of the gas discharged from the airway 12.

[0038] In the present solution, the adjustment hole 1221 and the air hole 1214 can also be misaligned. The misalignment means that the adjustment plate 122 can move to block the air hole 1214, so as to achieve the effect of closing the airway 12, which is manifested as the adjustment hole 1221 blocks the gas from being discharged from the trachea body 121.

[0039] In some embodiments of the present application, the trachea body 121 is a cuboid, and the air hole 1214 is formed in at least two continuous side surfaces of the trachea body 121. For example, the cross-sectional profile of the trachea body 121 is a hexagon, and more specifically, the cross-sectional shape of the trachea body 121 includes a connected isosceles trapezoid and a rectangle. The air hole 1214 is formed in the two waist side surfaces and the top surface of the isosceles trapezoid.

[0040] In a specific embodiment, the adjustment plate 122 includes at least two sub-plates, and the sub-plates are respectively attached to the side surfaces. Based on the above-mentioned trachea body 121, the adjustment plate 122 includes three independent sub-plates, and the three sub-plates are respectively attached to the two waist side surfaces and the top surface. The sub-plates can independently control the coincidence area of the adjustment hole 1221 and the air hole 1214 on each side surface, so that the airway 12 at different positions can discharge gas at different flow rates.

[0041] It should be noted that the adjusting plate 122 can also be attached to the plurality of sides of the air pipe body 121, and the adjusting plate 122 has a plurality of continuous sub-plates. In another embodiment, based on the air pipe body 121 described above, the adjusting plate 122 is composed of three sub-plates connected to each other. In this embodiment, the adjusting plate 122 controls the overlapping area of the adjusting hole 1221 and the air hole 1214 on the plurality of sides at the same time, so as to simplify the adjusting step.

[0042] Further, the number of adjusting plates 122 is at least two, and the two adjusting plates 122 are arranged along the extension direction of the air pipe body 121, and each adjusting plate 122 can be independently controlled. In this scheme, in combination with the adjusting plate 122 shown in FIG. 1, the air pipe body 121 has an opening 1211 at one end, and the plurality of adjusting plates 122 are arranged gradually away from the opening 1211. Because there is a difference in the flow rate of the gas discharged from each air outlet of the air pipe body 121. Specifically, the gas enters the air pipe body 121 from the opening 1211, and the flow rate of the gas discharged from the air outlet close to the opening 1211 is faster, while the flow rate of the gas discharged from the air outlet away from the opening 1211 is slower because the air pressure of the air pipe body 121 decreases. Figure 4 、 5 In this scheme, because the plurality of adjusting plates 122 are arranged gradually away from the opening 1211, the corresponding adjusting plate 122 can be adjusted according to the distance between the air hole 1214 and the opening 1211, so as to control the overlapping area of the adjusting hole 1221 and the air hole 1214, thereby making the flow rates of the gases discharged from the adjusting hole 1221 and the air hole 1214 with different distances from the opening 1211 basically consistent.

[0043] In this scheme, because the plurality of adjusting plates 122 are arranged gradually away from the opening 1211, the corresponding adjusting plate 122 can be adjusted according to the distance between the air hole 1214 and the opening 1211, so as to control the overlapping area of the adjusting hole 1221 and the air hole 1214, thereby making the flow rates of the gases discharged from the adjusting hole 1221 and the air hole 1214 with different distances from the opening 1211 basically consistent.

[0044] In some embodiments of the present application, the adjusting plate 122 can move relative to the air pipe body 121, specifically, the air pipe body 121 and the adjusting plate 122 are arranged in a sliding connection. In this scheme, the adjusting plate 122 is provided with a sliding groove 1222, and the side surface is provided with a mounting hole 1215 for mounting a screw, and the screw is arranged in the sliding groove 1222, so that the adjusting plate 122 slides along the sliding groove 1222 to adjust the position of the adjusting plate 122. In addition, the mounting hole 1215 is a threaded hole, and the threaded groove on the mounting hole 1215 is matched with the screw. After the position of the adjusting plate 122 is adjusted, the screw is screwed to make the nut clamp the adjusting plate 122 with the side surface, so as to fix the adjusting plate 122, prevent the adjusting plate 122 from deviating, and affect the size of the overlapping area of the adjusting hole 1221 and the air hole 1214, and further affect the adjusted gas flow rate.

[0045] Further, a sealing ring 1212 is arranged around the outside of the opening 1211. Since the protective door can be opened, the airway 12 needs to be separated from the circulating air flow channel. In order to facilitate separation and ensure the sealing performance when the airway 12 is reconnected to the circulating air flow channel, the sealing ring 1212 is arranged around the outside of the opening 1211. The elasticity of the sealing ring 1212 ensures the sealing performance when the airway 12 is connected to the circulating air flow channel. At the same time, the airway 12 is not rigidly connected to the circulating air flow channel, which facilitates the separation of the airway 12 from the circulating air flow channel.

[0046] In some embodiments of the present application, the airway 12 is connected to the door body 11 through a mounting bracket 13. The airway main body 121 is provided with a table-like mounting seat 1213 for connecting to the door body 11 on the other part of the side surface provided with the air hole 1214. The mounting bracket 13 and the mounting seat 1213 are connected by screws, thereby realizing the connection between the airway 12 and the door body 11.

[0047] In this scheme, the thickness of the table-like mounting seat 1213 is greater than the wall thickness of the tubular airway main body 121. When the mounting bracket 13 and the mounting seat 1213 are fixedly connected by screws, a counterbore can be provided on the mounting bracket 13 to avoid leakage of gas from the side surface which is not provided with the air hole 1214.

[0048] Further, the mounting bracket 13 is L-shaped, and the two perpendicular surfaces of the mounting bracket 13 are respectively attached to and connected with the airway 12 and the door body 11. The mounting bracket 13 is provided with an adjusting groove, which is arranged on the two perpendicular surfaces, and the airway 12 moves relative to the door body 11.

[0049] In this scheme, the screw passes through the adjusting groove, and the screw and the adjusting groove can guide the airway 12 and the mounting bracket 13 to adjust the position in a straight line direction, and the airway 12 can adjust the position in another straight line direction. That is, the airway 12 can adjust the relative position with the door body 11 in two directions. At the same time, the screw can also fix the position of the airway 12. Through the cooperation of the screw and the adjusting groove, the accurate connection between the airway 12 and the circulating air flow channel can be ensured.

[0050] The above embodiments are used to further illustrate the present application, but do not limit the present application to these specific embodiments. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be understood as within the protection scope of the present application.

Claims

1. An airway structure, characterized by, The air tube body (121) is provided with an air hole (1214), and the air tube body (121) is connected with an adjusting plate (122) capable of relative movement, the adjusting plate (122) is provided with an adjusting hole (1221), and the adjusting hole (1221) at least partially coincides with the air hole (1214).

2. An airway arrangement according to claim 1, characterised in that The air tube body (121) is a cuboid, and the air hole (1214) is arranged on at least two continuous side surfaces of the air tube body (121).

3. An airway arrangement according to claim 2, characterised in that, The adjusting plate (122) comprises at least two sub-plates, and the sub-plates are arranged on the side surfaces respectively.

4. An airway arrangement according to claim 2, characterised in that The adjusting plate (122) comprises a plurality of continuous sub-plates, and the adjusting plate (122) is arranged on a plurality of side surfaces.

5. An airway arrangement according to any one of claims 1-4, characterised in that, The air tube body (121) and the adjusting plate (122) are slidably connected.

6. An airway arrangement according to claim 5, characterised in that, The adjusting plate (122) is provided with a sliding groove (1222), and the side surface of the air tube body (121) is provided with a screw, and the screw is arranged in the sliding groove (1222).

7. An airway arrangement according to claim 6, characterised in that One end of the air tube body (121) is provided with an open end (1211), and a sealing ring (1212) is arranged outside the open end (1211).

8. A protective door characterized by It comprises: a door body (11); and The airway structure as claimed in any one of claims 1-7 is connected to the door body (11).

9. The security door of claim 8, wherein, The airway structure and the door body (11) are connected through a mounting bracket (13).

10. The security door of claim 9, wherein, The mounting bracket (13) is provided with an adjusting groove, and the airway structure moves relative to the door body (11).

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