Honeycomb fixing assembly and honeycomb mounting structure

Abstract

The utility model discloses a honeycomb device fixing assembly and a honeycomb device installation structure, the honeycomb device installation structure comprises a stable section wind tunnel, a honeycomb device fixing assembly and a honeycomb device, the honeycomb device fixing assembly comprises a windward frame body and a positioning frame body, the four corners of the windward frame body are respectively provided with a limiting support lug protruding outwards, and the positioning frame body is provided with a positioning hole. The four corners of the positioning frame body are each provided with a sliding support lug protruding outwards, and the limiting support lugs and the sliding support lugs are the same in size and shape. A limiting frame and an inserting frame are arranged on the windward frame body and the positioning frame body respectively, the inserting frame can be sleeved with the windward frame body, and a clamping space used for assembling the honeycomb device is formed between the inserting frame and the limiting frame; the honeycomb device is clamped and fixed in the clamping space; four limiting sliding grooves are formed in the stable section wind tunnel in the length direction of the stable section wind tunnel, and the limiting supporting lugs of the windward frame body and the sliding supporting lugs of the positioning frame body are arranged in the corresponding limiting sliding grooves and matched with the limiting sliding grooves.

Description

Technical Field

[0001] The utility model relates to a wind tunnel, in particular to a honeycomb fixing component and a honeycomb mounting structure. Background Art

[0002] As an indispensable and important testing tool in the fields of aerospace, automotive engineering, civil engineering, etc., the design, construction and operation technology of wind tunnel system has always been highly valued by researchers and engineers. When using wind tunnel system to conduct wind tunnel experiments, the wind tunnel is often used to generate a section of uniform gas flow area, in which the air resistance of ventilation ducts and components at different wind speeds is simulated.

[0003] A conventional wind tunnel includes an air intake section, a power section, a stable section, and a contraction section, each of which is provided with a flow channel. The power section includes a plurality of fans evenly distributed in the power section flow channel, the stable section is provided with a honeycomb and a damping net, and the contraction section has a contraction section inlet connected to the stable section and a contraction section outlet at the end (such as the multifunctional test wind tunnel disclosed in the Chinese patent application number 201921273898 4). Among them, the honeycomb in the stable section is mainly assembled in the stable section by welding. This method of fixing the honeycomb by welding is difficult to flexibly adjust according to the experimental requirements, and cannot adapt to the requirements of different wind speeds and flow conditions, resulting in poor airflow stability in some cases, which in turn affects the test accuracy and efficiency of the wind tunnel system.

[0004] In view of the above problems, the applicant considered installing the honeycomb detachably in the stable section wind tunnel. However, the existing honeycomb is rectangular in shape as a whole, and the inner wall of the stable section wind tunnel is also rectangular, which makes it inconvenient to fix the honeycomb. Based on this, the applicant considered designing a fixing member that can detachably install the honeycomb in the wind tunnel and fix it to the wind tunnel. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a honeycomb fixing assembly and a honeycomb mounting structure to solve the problem that the existing honeycomb is fixed by welding to the wind tunnel and the honeycomb cannot be flexibly replaced according to experimental requirements.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A honeycomb fixing assembly includes a windward frame and a positioning frame matched with the windward frame, wherein a limit lug protruding outward is provided at each of the four corners of the windward frame, and a sliding lug protruding outward is provided at each of the four corners of the positioning frame, and the limit lug and the sliding lug are of the same size and shape; a limit frame and a plug-in frame are respectively provided on the windward frame and the positioning frame, and the plug-in frame can be sleeved in the windward frame and form a clamping space for assembling the honeycomb with the limit frame. In this way, during assembly, the honeycomb can be first assembled in the honeycomb fixing assembly, and then the honeycomb fixing assembly can be assembled in the stable section wind tunnel, so that in the experimental stage, according to different experimental requirements, the honeycomb fixing assembly can be taken out, the honeycomb assembled in the honeycomb fixing assembly can be replaced, and then the honeycomb fixing assembly can be assembled in the stable section wind tunnel to meet different experimental requirements. The lugs provided on the windward frame and the positioning frame can achieve cooperation with the stable section wind tunnel to fix the honeycomb in the stable section wind tunnel. The positioning frame and the windward frame are both frame-shaped and will not block the honeycomb holes in the middle of the honeycomb.

[0008] Furthermore, the limit frame is arranged on the side of the windward frame away from the positioning frame, and the plug-in frame is arranged on the side of the positioning frame adjacent to the windward frame. After the windward frame and the limit frame cooperate, the side surfaces of the adjacent sides are tightly attached. In this way, during the specific installation, the plug-in frame and the limit frame correspond to each other, and a clamping space is formed in the middle. At the same time, after the assembly is completed, the end faces of the windward frame and the positioning frame adjacent to each other are tightly attached and connected as a whole. When the honeycomb needs to be taken out, the honeycomb hole in the middle of the honeycomb can be directly grasped to pull the two out together.

[0009] Furthermore, the plug-in frame and the limit frame can be respectively arranged on the windward frame and the positioning frame, and the plug-in frame is located on the side of the windward frame close to the positioning frame, and the limit frame is arranged on the side of the positioning frame away from the windward frame, and after the windward frame and the limit frame cooperate, the side surfaces of the adjacent sides are closely attached. In this way, after the plug-in frame and the limit frame are replaced, a clamping space can still be formed between the plug-in frame and the limit frame.

[0010] Furthermore, the width of the outer ends of the limiting lugs and the sliding lugs is greater than the width of the inner ends, forming a T-shape or an arrow shape. In this way, after the windward frame and the positioning frame are assembled in the stable section wind tunnel, the provided limiting lugs and the sliding lugs can achieve the coordinated positioning with the stable section wind tunnel, ensuring that they are in a vertical shape after installation.

[0011] Furthermore, the windward frame and the positioning frame are both rectangular, and a permanent magnet is embedded on the four sides of the windward frame and the positioning frame. In this way, after the permanent magnets are set in the two frames, the two frames can be adsorbed on the inner wall of the stable section wind tunnel to maintain stability.

[0012] A honeycomb installation structure includes a stable section wind tunnel and a honeycomb placed in the stable section wind tunnel, and also includes the above-mentioned honeycomb fixing assembly, wherein the honeycomb is clamped and fixed in the clamping space; four limiting slides are provided in the stable section wind tunnel and along the length direction of the stable section wind tunnel, the lengths of the limiting slides are consistent, and the lengths are less than the lengths of the stable section wind tunnel, and the notches are arranged on the windward side of the stable section wind tunnel; the limiting lugs of the windward frame and the sliding lugs of the positioning frame are both placed in the corresponding limiting slides and matched with the limiting slides. In this way, after the limiting slides are arranged in the stable section wind tunnel, the windward frame and the positioning frame of the honeycomb fixing assembly can be detachably assembled in the limiting slides. The notches of the limiting slides are arranged toward the windward side of the stable section wind tunnel, and are not through grooves, so that when the windward frame and the positioning frame slide to the innermost end of the limiting slides, they can no longer slide, thereby achieving positioning. At the same time, due to the obstruction at the end of the limiting slide groove and the cooperation between the ears on the windward frame and the positioning frame and the limiting slide groove, the stability is good. Therefore, during the experiment, the wind blowing in will not affect its stability. No other fixation is required to ensure that the honeycomb fixed component is always firmly connected to the stable section wind tunnel after assembly.

[0013] Furthermore, a positioning block matched therewith is also provided in each limiting chute. In this way, when the air volume is large, the positioning block can be provided, and the positioning block is inserted into the limiting chute to form a tight fit on the honeycomb fixing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the assembly structure of the honeycomb fixing assembly in Example 1;

[0015] Figure 2 This is a schematic diagram of the disassembled state of the honeycomb fixing assembly in Example 1;

[0016] Figure 3 This is a schematic diagram of the split structure of the honeycomb fixing assembly and the stabilizing section wind tunnel in Example 1;

[0017] Figure 4 A schematic diagram of the three-dimensional structure of the stable section wind tunnel in the embodiment;

[0018] Figure 5 This is a schematic diagram of the disassembled structure of the honeycomb installation structure in Example 2. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0020] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when used, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Example 1

[0022] like Figure 1-Figure 4As shown, the honeycomb 3 installation structure provided in this embodiment includes a stable section wind tunnel 1, a honeycomb fixing assembly 2 and a honeycomb 3, the honeycomb fixing assembly 2 includes a windward frame 21 and a positioning frame 22 matched with the windward frame 21 (the windward frame 21 and the positioning frame 22 are both rectangular), and a limiting ear 23 protruding outward is provided at the four corners of the windward frame 21, and a sliding ear 24 protruding outward is provided at the four corners of the positioning frame 22, and the limiting ear 23 and the sliding ear 24 are of the same size and shape (arranged obliquely, and can be arranged vertically in a specific implementation); the windward frame 21 and the positioning frame 22 are divided into A limit frame 26 and an insertion frame 25 are separately provided, and the insertion frame 25 can be inserted into the windward frame 21, and a clamping space 27 for assembling the honeycomb 3 is formed between the plug-in frame 25 and the limit frame 26; the honeycomb 3 is clamped and fixed in the clamping space 27; four limit slide grooves 11 are provided in the stable section wind tunnel 1 and along the length direction of the stable section wind tunnel 1, and the length of each limit slide groove 11 is consistent and smaller than the length of the stable section wind tunnel 1, and the groove is located on the wind inlet side of the stable section wind tunnel 1; the limit support ear 23 of the windward frame 21 and the sliding support ear 24 of the positioning frame 22 are both placed in the corresponding limit slide groove 11, and cooperate with the limit slide groove 11. During assembly, the honeycomb 3 is first assembled in the honeycomb fixing assembly 2, and then the honeycomb fixing assembly 2 is assembled in the stable section wind tunnel 1. Therefore, in the experimental stage, the honeycomb fixing assembly 2 can be taken out according to different experimental requirements, and the honeycomb 3 assembled in the honeycomb fixing assembly 2 can be replaced, and then the honeycomb fixing assembly 2 can be assembled in the stable section wind tunnel 1 to meet different experimental requirements. The ears set on the windward frame 21 and the positioning frame 22 can achieve the cooperation with the stable section wind tunnel 1 to fix the honeycomb 3 in the stable section wind tunnel 1. The positioning frame 22 and the windward frame 21 are both frame-shaped and will not block the honeycomb holes in the middle of the honeycomb 3. The notch of the limiting slide 11 is set toward the air inlet side of the stable section wind tunnel 1, and is not a through groove, so that when the windward frame 21 and the positioning frame 22 slide to the innermost end of the limiting slide 11, they can no longer slide, and the positioning is achieved. At the same time, due to the obstruction at the end of the limiting slide groove 11, and the cooperation between the ears on the windward frame 21 and the positioning frame 22 and the limiting slide groove 11, the stability is good. Therefore, during the experiment, the wind blowing in will not affect its stability. No other fixation is required to ensure that the honeycomb fixing component 2 is always firmly connected to the stable section wind tunnel 1 after assembly.

[0023] like Figure 1-Figure 2As shown, the limit frame 26 in this embodiment is arranged on the side of the windward frame 21 away from the positioning frame 22, and the plug-in frame 25 is arranged on the side of the positioning frame 22 adjacent to the windward frame 21. After the windward frame 21 cooperates with the limit frame 26, the side surfaces of the adjacent sides are tightly attached. In this way, during the specific installation, the plug-in frame 25 and the limit frame 26 correspond to each other, and a clamping space 27 is formed in the middle. At the same time, after the assembly is completed, the end faces of the windward frame 21 and the positioning frame 22 adjacent to each other are tightly attached and connected as a whole. When it is necessary to take out the honeycomb 3, the honeycomb hole in the middle of the honeycomb 3 can be directly grasped to pull the two out together.

[0024] To ensure that there is no gap between the windward frame 21 and the positioning frame 22 and the inner wall of the stable wind tunnel 1 after assembly, and to keep the honeycomb 3 perpendicular to the stable wind tunnel 1 after assembly, the outer end widths of the limiting lugs 23 and the sliding lugs 24 are greater than the inner end widths, and are T-shaped or arrow-shaped. Correspondingly, the shape of the limiting slide groove 11 is also the same as that of the limiting lugs 23 and the sliding lugs 24.

[0025] To ensure the stability of the connection between the windward frame 21 and the positioning frame 22 , the positioning frame 22 and the windward frame 21 may be connected by fasteners, and threaded holes are provided at four sides of one of the frames.

[0026] In order to ensure the stability of the connection between the stable section wind tunnel 1 and the honeycomb fixing assembly 2, a permanent magnet is embedded on the four sides of the windward frame 21 and the positioning frame 22. A positioning block (not shown in the figure) that matches it is also provided in each limiting slide 11. In this way, when the wind volume is large, a positioning block can be set, and the positioning block is inserted into the limiting slide 11 to form a tight contact with the honeycomb fixing assembly 2. In this way, after the permanent magnets are set in the two frames, the two frames can be adsorbed on the inner wall of the stable section wind tunnel 1 to maintain stability. In the case of a large wind volume, a positioning block can be set, and the positioning block is inserted into the limiting slide 11 to form a tight contact with the honeycomb fixing assembly 2.

[0027] Example 2

[0028] like Figure 5 As shown, the installation structure of the honeycomb 3 in this embodiment is different from that in the embodiment 1 only in that the setting positions of the limit frame 26 and the plug-in frame 25 in the honeycomb fixing assembly 2 are different. Specifically, in this embodiment, the plug-in frame 25 and the limit frame 26 can be respectively arranged on the windward frame 21 and the positioning frame 22, and the plug-in frame 25 is located on the side of the windward frame 21 close to the positioning frame 22, and the limit frame 26 is arranged on the side of the positioning frame 22 away from the windward frame 21. After the windward frame 21 cooperates with the limit frame 26, the side surfaces of the adjacent sides are tightly attached.

[0029] The honeycomb fixing assembly 2 in the embodiment 1 and the embodiment 2 can be made of plastic or metal. In the specific implementation, a rectangular frame integrally formed with the stable section wind tunnel 1 can be set, and the honeycomb 3 is limited by the rectangular frame. Then, the honeycomb 3 is pressed tightly with the windward frame 21, and the windward frame 21 is connected and fixed with the rectangular frame by fasteners to realize the detachable assembly of the honeycomb 3. However, the above structure is inconvenient to replace.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution of the utility model should be included in the scope of the claims of the utility model.

Claims

1. A honeycomb fixing assembly, characterized in that: It includes a windward frame and a positioning frame matched with the windward frame, wherein a limiting lug protruding outward is provided at each of the four corners of the windward frame, and a sliding lug protruding outward is provided at each of the four corners of the positioning frame, and the limiting lug and the sliding lug have the same size and shape; a limiting frame and a plug-in frame are respectively provided on the windward frame and the positioning frame, and the plug-in frame can be sleeved in the windward frame and form a clamping space for assembling the honeycomb device between the limiting frame and the positioning frame.

2. The honeycomb fixing assembly according to claim 1, characterized in that: The limiting frame is arranged on the side of the windward frame away from the positioning frame, and the plug-in frame is arranged on the side adjacent to the positioning frame and the windward frame. After the windward frame and the limiting frame are matched, the side surfaces of the adjacent sides are tightly attached.

3. The honeycomb fixing assembly according to claim 1, characterized in that: The plug-in frame and the limit frame can also be arranged on the windward frame and the positioning frame respectively, and the plug-in frame is located on the side of the windward frame close to the positioning frame, and the limit frame is arranged on the side of the positioning frame away from the windward frame. After the windward frame and the limit frame are matched, the side surfaces of the adjacent sides are tightly attached.

4. The honeycomb fixing assembly according to claim 1, 2 or 3, characterized in that: The width of the outer ends of the limiting support ear and the sliding support ear is greater than the width of the inner ends, and is in a T shape or an arrow shape.

5. The honeycomb fixing assembly according to claim 4, characterized in that: The windward frame and the positioning frame are both rectangular, and a permanent magnet is embedded on four sides of the windward frame and the positioning frame.

6. A honeycomb installation structure, comprising a stable section wind tunnel and a honeycomb placed in the stable section wind tunnel, characterized in that: It also includes the honeycomb fixing assembly according to any one of claims 1 to 5, wherein the honeycomb is clamped and fixed in the clamping space; four limiting slide grooves are provided in the stable section wind tunnel and along the length direction of the stable section wind tunnel, the lengths of the limiting slide grooves are consistent and smaller than the length of the stable section wind tunnel, and the grooves are provided on the wind inlet side of the stable section wind tunnel; the limiting ears of the windward frame and the sliding ears of the positioning frame are both placed in corresponding limiting slide grooves and cooperate with the limiting slide grooves.

7. The honeycomb installation structure according to claim 6, characterized in that: A positioning block matching with the limiting sliding groove is also provided in each limiting sliding groove.

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