Fan array wind tunnel capable of simulating multiple angles

Abstract

The invention discloses a fan array wind tunnel capable of simulating multiple angles, relates to the field of wind tunnel experiments, and solves the problem that a fan on an existing fan array wind tunnel is easy to break, the fan array wind tunnel comprises a mounting bracket and a mounting ring mounted on the inner side of the mounting bracket, and a square frame is arranged on the inner side of the mounting ring; a plurality of positioning frames which are distributed at equal intervals are fixedly mounted on the inner side of the square frame, and a plurality of fan bodies which are distributed at equal intervals are arranged on the inner sides of the positioning frames; the clamping mechanism is used for quickly assembling and disassembling the fan body, and the clamping mechanism is mounted on the inner side of the positioning frame; the fan bodies are rapidly installed on the outer side of the positioning frame in a clamping mode through the clamping mechanism, the uppermost fan body is pressed and positioned, the multiple fan bodies are conveniently and rapidly installed, the fan bodies are supported through the positioning frame, the problem that the multiple fan bodies are prone to being broken is solved, and the service life of the fan bodies is prolonged. Therefore, the effects of quick disassembly and assembly and stable operation are achieved.

Description

Technical Field

[0001] The invention relates to the field of wind tunnel experiments, in particular to a wind tunnel capable of simulating a multi-angle fan array. Background Art

[0002] Wind tunnel experiments are pipe-shaped experimental equipment that artificially generate and control airflow to simulate the flow of gas around aircraft or entities, measure the effects of airflow on entities, and observe physical phenomena. It is one of the most commonly used and effective tools for conducting aerodynamic experiments.

[0003] Wind tunnel experiments usually require a combination of multiple fans to generate and control airflow. Airflow is generated by the rotation of the fans, and the wind speed and direction are adjusted by a control system to simulate different airflow conditions. The existing Chinese public patent document: CN115200827A discloses a multi-fan open wind tunnel that simulates variable-angle incoming flow. By changing the posture of a three-degree-of-freedom platform and the relative position of the slide rail, planar and fan-shaped incoming flow are simulated to achieve adjustment of the spatial angle of the incoming flow; at the same time, by controlling the different speeds of the fan units, the velocity gradient between airflow layers is simulated. The wind tunnel can simulate different types of incoming flow, and compared with the existing technology, it can achieve a wind field environment that is more in line with the actual flight environment of the aircraft. However, during the replacement or installation process, the fans are stacked by bolt fixing. Due to the increase in the number of fans and the increase in wind force, the fan connections are prone to breakage, and the safety is relatively low. Summary of the invention

[0004] The object of the present invention is to provide a wind tunnel capable of simulating a multi-angle fan array to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A wind tunnel capable of simulating a multi-angle fan array comprises: a mounting bracket and a mounting ring mounted on the inner side of the mounting bracket, a square frame is arranged on the inner side of the mounting ring, a plurality of equally spaced positioning frames are fixedly mounted on the inner side of the square frame, a plurality of equally spaced fan bodies are arranged on the inner side of the positioning frames, and the plurality of fan bodies are distributed in an array; further comprising: a clamping mechanism for quickly assembling and disassembling the fan bodies, the clamping mechanism being mounted on the inner side of the positioning frames; a fan adjusting mechanism for quickly adjusting the angle of the fan bodies, the fan adjusting mechanism being mounted on the inner side of the positioning frames; and a flow regulating mechanism for adjusting the rotational wind direction of the fan bodies, the flow regulating mechanism being mounted on the inner side of the mounting bracket.

[0006] Preferably, the clamping mechanism includes an installation frame arranged on the outside of the fan body, and clamp frames are fixedly installed on both sides of the installation frame. The inner side of the clamp frame is an arc-shaped structure, and the inner side of the clamp frame contacts the outer side of the positioning frame. Three arc-shaped plates distributed at equal intervals are slidably installed on the inner side of the clamp frame. The arc-shaped concave surface on the outer side of the arc-shaped plate contacts the outer side of the positioning frame, so that the arc-shaped plate cooperates with the clamp frame to be sleeved on the outer side of the positioning frame. A pull rod is fixedly installed between the three arc-shaped plates, and the arc-shaped plate is connected to the outer side of the positioning frame through a protrusion. The pull rod is docked, and an arc-shaped groove for the pull rod to limit the sliding of the pull rod is opened on the outer side of the clamping frame, which is convenient for the movement of the pull rod. A magnet plate that cooperates with the arc plate is fixedly installed on the outer side of the clamping frame to provide positioning for the arc plate. A pressure plate is slidably installed on the outer side of the positioning frame, and the bottom of the pressure plate contacts the top of the uppermost installation frame. Two symmetrically distributed springs are fixedly installed between the top of the pressure plate and the top inner wall of the positioning frame. The elasticity of spring one is used to press the pressure plate against the installation frame for positioning.

[0007] Preferably, the fan adjusting mechanism includes two positioning rods symmetrically fixedly installed on the outer side of the fan body, the positioning rods are rotatably installed on the inner side of the mounting frame, so that the fan body can rotate in the mounting frame with the positioning rods as a fulcrum, and a gear 1 is fixedly installed on the outer side of the positioning rod, and a rack plate matching the gear 1 is provided on the outer side of the positioning rod. When the rack plate moves, it can drive the positioning rod to rotate through the gear 1 to achieve angle adjustment of the fan body, and push rods are fixedly installed on the top and bottom of the rack plate, and a sleeve seat for limiting the sliding of the push rod is fixedly installed on the inner side of the clamping frame to provide support for the push rod, and a spring 2 is fixedly installed between the bottom of the rack plate and the adjacent sleeve seat, and two symmetrically distributed electric telescopic rods are fixedly installed on the top of the pressure plate, and the output end of the electric telescopic rod contacts the top of the uppermost push rod, so that the electric telescopic rod can push the adjacent push rod to move, and the push rod pushes the adjacent push rod to move, thereby achieving synchronous movement of multiple push rods.

[0008] Preferably, the flow regulating mechanism includes a gear ring fixedly mounted on the outer side of the mounting ring, the mounting ring is rotatably mounted on the inner side of the mounting bracket, a support rod is rotatably mounted between the outer side of the square frame and the inner side of the mounting ring, a motor 1 is fixedly mounted on the inner side of the mounting ring, the output end of the motor 1 is fixedly connected to the side of the square frame away from the support rod, so that the motor 1 can drive the square frame to rotate, thereby achieving angle adjustment of the square frame, a motor 2 is fixedly mounted on the outer side of the mounting bracket, a gear 2 is fixedly mounted on the output end of the motor 2, the gear 2 is located on the inner side of the mounting bracket, the gear 2 cooperates with the teeth on the outer side of the gear ring, so that the gear 2 can drive the gear ring to rotate, and a balancing block is fixedly mounted on one end of the support rod close to the mounting ring, and the weight of the balancing block is the same as the weight of the motor 2.

[0009] Preferably, an insert block is slidably installed on the inner side of the pressure plate, and a plurality of slots for limiting the insertion of the insert block are opened on the outer side of the positioning frame. A spring three is fixedly installed between the insert block and the inner side of the pressure plate, and the end of the insert block away from the spring three is an arc-shaped structure, which facilitates the insert block to detach from the slot and provides positioning for the movement of the pressure plate.

[0010] Preferably, pull blocks are fixedly mounted on both ends of the pull rod, and the outer sides of the pull blocks are in contact with the outer sides of the clamping frame, so as to facilitate the pulling of the pull rod to move.

[0011] Preferably, two symmetrically distributed arc-shaped guard plates are fixedly mounted on the outer side of the pressing plate to facilitate pulling the pressing plate.

[0012] Preferably, the top and bottom of the installation frame are fixedly installed with plug rods, and the top and bottom of the installation frame are provided with sockets for the plug rods to be limitedly inserted, and the openings of the sockets are annular inclined surface structures to facilitate the docking of the plug rods and the sockets. The plug rods and the sockets are staggered, so that when the two installation frames are in contact, the plug rods can be inserted into the corresponding sockets, which facilitates the docking of the two installation frames.

[0013] Preferably, guide cylinders for limiting the sliding of the push rods are fixedly mounted on the top and bottom of the installation frame, so that adjacent push rods can be butted against each other through the guide cylinders.

[0014] Preferably, two symmetrically distributed guide rings are fixedly installed on the inner side of the mounting bracket, the outer side of the guide ring is an arc structure, and the outer side of the mounting ring is provided with an annular groove for limiting the sliding of the guide ring, thereby improving the smoothness of the rotation of the gear ring and the mounting ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses a clamping mechanism and a fan body that is quickly installed on the outside of a positioning frame in a clamping manner, so that multiple fan bodies are close to each other and fixed in a stacked manner. The top fan body is pressed and positioned, which facilitates the rapid installation of multiple fan bodies and the removal of the fan body that needs to be replaced. The positioning frame provides support for the fan body, which solves the problem that multiple fan bodies are easy to break, thereby achieving the effect of rapid disassembly and assembly and smooth operation.

[0016] The present invention uses a fan adjusting mechanism to push the corresponding push rod to move downward when the electric telescopic rod is in operation, so that the push rod can synchronously push the push rod directly below to move synchronously, thereby realizing synchronous adjustment of the angles of multiple fan bodies, facilitating rapid experimental flow measurement, and thus improving the convenience of adjusting the angles of the fan bodies.

[0017] The present invention can realize the rotation of the mounting ring through motor 2 through the flow regulating mechanism, so that the mounting ring can drive the square frame to rotate synchronously, which is convenient for adjusting the overall rotation angle of multiple fan bodies. The angle of the square frame can be adjusted to facilitate the overall flow measurement angle of multiple fan bodies, thereby facilitating rapid simulation of multiple airflow squares. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the mounting bracket and the square frame structure in the present invention; Figure 3 for Figure 2 Schematic diagram of the enlarged structure of the middle A area; Figure 4 It is a schematic diagram of the structure of the positioning frame and the fan body in the present invention; Figure 5 It is a schematic diagram of the structure of the insert block and the pressing plate in the present invention; Figure 6 It is a schematic diagram of the arc plate and the clamping frame structure in the present invention; Figure 7 It is a schematic diagram of the rack plate and sleeve structure in the present invention; Figure 8 It is a schematic diagram of the push rod and the insertion rod structure in the present invention.

[0019] In the figure: 1. mounting bracket; 2. mounting ring; 3. square frame; 4. positioning frame; 5. fan body; 6. mounting frame; 7. clamping frame; 8. arc plate; 9. pull rod; 10. magnet plate; 11. pressure plate; 12. spring one; 13. positioning rod; 14. gear one; 15. rack plate; 16. push rod; 17. sleeve; 18. spring two; 19. electric telescopic rod; 20. gear ring; 21. support rod; 22. motor one; 23. motor two; 24. gear two; 25. balance block; 26. plug block; 27. spring three; 28. pull block; 29. ​​arc guard plate; 30. plug rod; 31. guide cylinder; 32. guide ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1-Figure 8The figure shows a wind tunnel that can simulate a multi-angle fan array, including a mounting bracket 1 and a mounting ring 2 installed on the inner side of the mounting bracket 1, a square frame 3 is arranged on the inner side of the mounting ring 2, a plurality of equally spaced positioning frames 4 are fixedly installed on the inner side of the square frame 3, a plurality of equally spaced fan bodies 5 are arranged on the inner side of the positioning frame 4, and the plurality of fan bodies 5 are distributed in an array; it also includes: a clamping mechanism for quickly assembling and disassembling the fan body 5, the clamping mechanism is installed on the inner side of the positioning frame 4; a fan adjusting mechanism for quickly adjusting the angle of the fan body 5, the fan adjusting mechanism is installed on the inner side of the positioning frame 4; a flow regulating mechanism for adjusting the rotation wind direction of the fan body 5, the flow regulating mechanism is installed on the inner side of the mounting bracket 1.

[0022] The clamping mechanism includes a mounting frame 6 arranged on the outside of the fan body 5, and clamping frames 7 are fixedly installed on both sides of the mounting frame 6. The inner side of the clamping frame 7 is an arc-shaped structure, and the inner side of the clamping frame 7 contacts the outer side of the positioning frame 4. Three arc-shaped plates 8 distributed equidistantly are slidably installed on the inner side of the clamping frame 7. The arc-shaped concave surface of the outer side of the arc-shaped plate 8 contacts the outer side of the positioning frame 4, so that the arc-shaped plate 8 cooperates with the clamping frame 7 to be sleeved on the outer side of the positioning frame 4. A pull rod 9 is fixedly installed between the three arc-shaped plates 8, and the arc-shaped plate 8 is connected to the pull rod 9 through a protrusion. An arc groove is provided on the outside for the pull rod 9 to limit the sliding movement, which is convenient for the pull rod 9 to move. A magnet plate 10 that matches the arc plate 8 is fixedly installed on the outside of the clamp frame 7 to provide positioning for the arc plate 8. A pressure plate 11 is slidably installed on the outside of the positioning frame 4. The bottom of the pressure plate 11 contacts the top of the topmost installation frame 6. Two symmetrically distributed springs 12 are fixedly installed between the top of the pressure plate 11 and the top inner wall of the positioning frame 4. The elasticity of the spring 12 is used to press the pressure plate 11 against the installation frame 6 for positioning. The inner side of the pressure plate 11 slides A plug block 26 is installed on the movable part, and a plurality of slots for the plug block 26 to limit the insertion are opened on the outer side of the positioning frame 4. A spring three 27 is fixedly installed between the plug block 26 and the inner side of the pressure plate 11. The end of the plug block 26 away from the spring three 27 is an arc-shaped structure, which is convenient for the plug block 26 to be separated from the slot and provide positioning for the movement of the pressure plate 11. Pull blocks 28 are fixedly installed at both ends of the pull rod 9. The outer side of the pull block 28 contacts the outer side of the clamp frame 7, which is convenient for pulling the pull rod 9 to move. Two symmetrically distributed arc-shaped guard plates are fixedly installed on the outer side of the pressure plate 11. 29, it is convenient to pull the pressure plate 11, the top and bottom of the installation frame 6 are fixedly installed with a plug rod 30, the top and bottom of the installation frame 6 are provided with a plug hole for the plug rod 30 to limit the insertion, and the opening of the plug hole is a ring-shaped inclined surface structure, which is convenient for the plug rod 30 to dock with the plug hole, and the plug rod 30 and the plug hole are staggered, so that when the two installation frames 6 are in contact, the plug rod 30 can be inserted into the corresponding plug hole, which is convenient for the two installation frames 6 to dock, and the outer side of the pressure plate 11 and the bottom of the positioning frame 4 are provided with a groove for the plug rod 30 to limit the insertion; When assembling the newly added fan body 5 and the mounting frame 6, the pressure plate 11 can be pulled to move upward, so that the pressure plate 11 drives the plug block 26 to move along the inner side of the slot to the outer side of the positioning frame 4, and the plug block 26 can be received in the inner side of the pressure plate 11, and the spring three 27 can be compressed to make the bottom of the new mounting frame 6 contact with the top of the top mounting frame 6, and the plug rod 30 on the newly added mounting frame 6 can be inserted into the plug hole at the top of the top mounting frame 6. By utilizing the elasticity of the spring one 12, the bottom of the pressure plate 11 can be contacted with the top of the newly added mounting frame 6, and the plug block 26 can be inserted into the top of the top mounting frame 6. 6 can be inserted into the slot of the positioning frame 4 again, and the clamping frames 7 on both sides of the installation frame 6 can be sleeved on the outside of the positioning frame 4. The pull rod 9 is pulled by the pull block 28, so that the pull rod 9 drives the three arc plates 8 to move along the inner side of the clamping frame 7 and sleeved on the outside of the positioning frame 4, so that the arc plates 8 are adsorbed on the magnet plate 10, and the installation frame 6 can be fixed on the inner side of the positioning frame 4, completing the addition of the installation frame 6 and the fan body 5. The positioning frame 4 provides support for the fan body 5, solves the problem that multiple fan bodies 5 are easy to break, thereby achieving the effect of fast disassembly and assembly and smooth operation.

[0023] Working principle: first, the bottom of the staff installation frame 6 is against the bottom inner wall of the positioning frame 4, and then, the two clamping frames 7 on the outside of the installation frame 6 are sleeved on the outside of the positioning frame 4, and the pull block 28 drives the pull rod 9 to move along the arc groove on the clamping frame 7, so that the pull rod 9 drives the three arc plates 8 to move along the inner side of the clamping frame 7, and the arc plate 8 is adsorbed on the magnet plate 10, and the clamping frame 7 can cooperate with the arc plate 8 to sleeve on the outside of the positioning frame 4. Subsequently, the staff puts the next installation frame 6 on the top of the installation frame 6, so that the insertion rod 30 at the bottom of the newly added installation frame 6 is inserted into the insertion hole at the top of the installation frame 6, thereby installing the remaining installation frames 6 in turn, and finally, the staff pulls the pressure plate 11 to move downward, and uses the elasticity of the spring 12 to make the bottom of the pressure plate 11 against the top of the uppermost installation frame 6, and the insertion block 26 on the inside of the pressure plate 11 can use the elasticity of the spring three 27 to be inserted into the slot of the positioning frame 4, Provide auxiliary positioning for the pressure plate 11, and complete the installation of multiple installation frames 6; During disassembly, the staff pulls the pressure plate 11 upward to compress the spring 12, and the arc surface of the plug block 26 can slide out of the slot of the positioning frame 4. The staff only needs to push the installation frame 6 at the top and the installation frame 6 at the bottom of the installation frame 6 to be disassembled, so that the two installation frames 6 are separated from the installation frame 6 to be disassembled, and the installation frame 6 to be disassembled can be taken out, thereby improving the convenience of installation and replacement of the installation frame 6. In addition, the positioning frame 4 and the insertion rod 30 can provide support for the installation frame 6, improve the stability of the fan body 5 during operation, and ensure the normal progress of the wind tunnel experiment, thereby achieving the effect of rapid disassembly and assembly and smooth operation, and improving the safety of the wind tunnel experiment.

[0024] Example 2: Please refer to Figure 5-Figure 8, this embodiment further explains the first embodiment, the fan adjustment mechanism shown in the figure includes two positioning rods 13 symmetrically fixedly installed on the outside of the fan body 5, the positioning rods 13 are rotatably installed on the inner side of the mounting frame 6, so that the fan body 5 can rotate in the mounting frame 6 with the positioning rods 13 as a fulcrum, a gear 14 is fixedly installed on the outside of the positioning rods 13, and a rack plate 15 matched with the gear 14 is arranged on the outside of the positioning rods 13. When the rack plate 15 moves, it can drive the positioning rod 13 to rotate through the gear 14 to achieve the angle adjustment of the fan body 5, and the top and bottom of the rack plate 15 are fixedly installed with push rods 16, and the top and bottom of the mounting frame 6 are provided with through holes 1 for the push rods 16 to limit the insertion, so that the push rods 16 on the two adjacent mounting frames 6 can be inserted into the corresponding A sleeve 17 for limiting the sliding of the push rod 16 is fixedly installed on the inner side of the clamping frame 7 in the through hole 1, providing support for the push rod 16, a spring 2 18 is fixedly installed between the bottom of the rack plate 15 and the adjacent sleeve 17, and two symmetrically distributed electric telescopic rods 19 are fixedly installed on the top of the pressing plate 11. The output end of the electric telescopic rod 19 contacts the top of the topmost push rod 16, so that the electric telescopic rod 19 can push the adjacent push rod 16 to move, and the push rod 16 pushes the adjacent push rod 16 to move, thereby realizing the synchronous movement of multiple push rods 16, and a through hole 2 for limiting the insertion of the push rod 16 is opened on the surface of the pressing plate 11, and a guide cylinder 31 for limiting the sliding of the push rod 16 is fixedly installed on the top and bottom of the mounting frame 6, so that the adjacent push rods 16 can be docked through the guide cylinder 31.

[0025] In this embodiment: when the electric telescopic rod 19 is in operation, it can push the corresponding push rod 16 to move, and the push rod 16 drives the rack plate 15 to move synchronously. The rack plate 15 drives the positioning rod 13 to rotate through the gear 14, so that the positioning rod 13 drives the fan body 5 to rotate, thereby realizing the angle adjustment of the fan body 5, and the rack plate 15 compresses the spring 2 18 and drives another push rod 16 to move. The bottom end of the push rod 16 pushes the push rod 16 on the next mounting frame 6 to move, so that the push rod 16 drives the corresponding rack plate 15 to move. Therefore, the electric telescopic rod 19 can push the push rods 16 on the same vertical line to move synchronously, so that multiple fan bodies 5 on the same positioning frame 4 rotate synchronously, and the flow measurement simulation of the airflow can be realized, thereby improving the convenience of adjusting the angle of the fan body 5, and according to the experimental requirements, the airflow directions on the multiple positioning frames 4 can be different, and airflow experiments at multiple different angles can be simulated.

[0026] Example 3: Please refer to Figure 1-Figure 3, this embodiment further illustrates other embodiments, the flow regulating mechanism in the figure includes a gear ring 20 fixedly mounted on the outer side of the mounting ring 2, the mounting ring 2 is rotatably mounted on the inner side of the mounting bracket 1, a support rod 21 is rotatably mounted between the outer side of the square frame 3 and the inner side of the mounting ring 2, a motor 22 is fixedly mounted on the inner side of the mounting ring 2, and the output end of the motor 22 is fixedly connected to the side of the square frame 3 away from the support rod 21, so that the motor 22 can drive the square frame 3 to rotate, so as to achieve the angle adjustment of the square frame 3, and a motor 23 is fixedly mounted on the outer side of the mounting bracket 1, and the output end of the motor 23 ... the motor 23 is fixedly mounted on the outer side of the mounting bracket 1. A gear 24 is fixedly installed on the output end, and the gear 24 is located on the inner side of the mounting bracket 1. The gear 24 cooperates with the teeth on the outer side of the gear ring 20, so that the gear 24 can drive the gear ring 20 to rotate. A balance block 25 is fixedly installed on the end of the support rod 21 close to the mounting ring 2. The weight of the balance block 25 is the same as the weight of the motor 23. Two symmetrically distributed guide rings 32 are fixedly installed on the inner side of the mounting bracket 1. The outer side of the guide ring 32 is an arc structure. The outer side of the mounting ring 2 is provided with an annular groove for the guide ring 32 to limit the sliding movement, thereby improving the stability of the rotation of the gear ring 20 and the mounting ring 2.

[0027] In this embodiment: when the motor 1 22 rotates, it can drive the square frame 3 to rotate with the support rod 21 as the fulcrum, so that the square frame 3 can drive the fan bodies 5 on multiple positioning frames 4 to adjust synchronously, which is convenient for rapid simulation of flow measurement, and the motor 2 23 can drive the gear ring 20 to rotate through the gear 2 24, so that the gear ring 20 drives the mounting ring 2 to rotate along the inner side of the mounting bracket 1 and between the two guide rings 32, which can drive the square frame 3 to rotate synchronously, which is convenient for rapid adjustment of the flow direction of the flow measurement, thereby facilitating rapid simulation of multiple airflow squares.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind tunnel capable of simulating a multi-angle fan array, characterized in that: include: A mounting bracket (1) and a mounting ring (2) mounted on the inner side of the mounting bracket (1), a square frame (3) being arranged on the inner side of the mounting ring (2), a plurality of equally spaced positioning frames (4) being fixedly mounted on the inner side of the square frame (3), and a plurality of equally spaced fan bodies (5) being arranged on the inner side of the positioning frames (4); Also includes: A clamping mechanism, used for quickly assembling and disassembling the fan body (5), the clamping mechanism being installed on the inner side of the positioning frame (4); A fan adjustment mechanism, used for quickly adjusting the angle of the fan body (5), the fan adjustment mechanism being mounted on the inner side of the positioning frame (4); A flow regulating mechanism is used to regulate the rotational wind direction of the fan body (5), and the flow regulating mechanism is installed on the inner side of the mounting bracket (1).

2. A wind tunnel capable of simulating a multi-angle fan array according to claim 1, characterized in that: The clamping mechanism comprises a mounting frame (6) arranged on the outside of the fan body (5), and clamping frames (7) are fixedly mounted on both sides of the mounting frame (6). The inner side of the clamping frame (7) contacts the outer side of the positioning frame (4). Three arc-shaped plates (8) distributed at equal intervals are slidably mounted on the inner side of the clamping frame (7). The arc-shaped concave surface on the outer side of the arc-shaped plate (8) contacts the outer side of the positioning frame (4). A pull rod (9) is fixedly mounted between the three arc-shaped plates (8). The outer side of the clamping frame (7) is provided with an arc groove for limiting the sliding of the pull rod (9), and the outer side of the clamping frame (7) is fixedly installed with a magnet plate (10) that matches the arc plate (8). The outer side of the positioning frame (4) is slidably installed with a pressure plate (11), and the bottom of the pressure plate (11) contacts the top of the uppermost installation frame (6). Two symmetrically distributed springs (12) are fixedly installed between the top of the pressure plate (11) and the top inner wall of the positioning frame (4).

3. A wind tunnel capable of simulating a multi-angle fan array according to claim 2, characterized in that: The fan adjustment mechanism comprises two positioning rods (13) symmetrically fixedly mounted on the outside of the fan body (5), the positioning rods (13) being rotatably mounted on the inside of the mounting frame (6), a gear 1 (14) being fixedly mounted on the outside of the positioning rods (13), a rack plate (15) matching with the gear 1 (14) being arranged on the outside of the positioning rods (13), a push rod (16) being fixedly mounted on the top and bottom of the rack plate (15), a sleeve seat (17) for limiting the sliding of the push rod (16) being fixedly mounted on the inside of the clamping frame (7), a spring 2 (18) being fixedly mounted between the bottom of the rack plate (15) and the adjacent sleeve seat (17), and two symmetrically distributed electric telescopic rods (19) being fixedly mounted on the top of the pressure plate (11), the output end of the electric telescopic rod (19) being in contact with the top of the topmost push rod (16).

4. A wind tunnel capable of simulating a multi-angle fan array according to claim 3, characterized in that: The flow regulating mechanism comprises a gear ring (20) fixedly mounted on the outside of the mounting ring (2); a support rod (21) is rotatably mounted between the outside of the square frame (3) and the inside of the mounting ring (2); a motor 1 (22) is fixedly mounted on the inside of the mounting ring (2); an output end of the motor 1 (22) is fixedly connected to a side of the square frame (3) away from the support rod (21); a motor 2 (23) is fixedly mounted on the outside of the mounting bracket (1); a gear 2 (24) is fixedly mounted on the output end of the motor 2 (23); the gear 2 (24) is located on the inside of the mounting bracket (1); the gear 2 (24) cooperates with teeth on the outside of the gear ring (20); and a balancing block (25) is fixedly mounted on one end of the support rod (21) close to the mounting ring (2).

5. A wind tunnel capable of simulating a multi-angle fan array according to claim 2, characterized in that: An insert block (26) is slidably mounted on the inner side of the pressure plate (11), a plurality of slots for limiting insertion of the insert block (26) are provided on the outer side of the positioning frame (4), and a spring three (27) is fixedly mounted between the insert block (26) and the inner side of the pressure plate (11).

6. A wind tunnel capable of simulating a multi-angle fan array according to claim 2, characterized in that: Pull blocks (28) are fixedly mounted on both ends of the pull rod (9), and the outer sides of the pull blocks (28) are in contact with the outer sides of the clamping frame (7).

7. A wind tunnel capable of simulating a multi-angle fan array according to claim 2, characterized in that: Two symmetrically distributed arc-shaped guard plates (29) are fixedly mounted on the outer side of the pressure plate (11).

8. The wind tunnel capable of simulating a multi-angle fan array according to claim 2, characterized in that: Insertion rods (30) are fixedly mounted on the top and bottom of the installation frame (6), and insertion holes for limiting insertion of the insertion rods (30) are provided on the top and bottom of the installation frame (6), and the insertion rods (30) and the insertion holes are arranged in a staggered manner.

9. The wind tunnel capable of simulating a multi-angle fan array according to claim 3, characterized in that: A guide cylinder (31) for limiting the sliding movement of the push rod (16) is fixedly mounted on the top and bottom of the installation frame (6).

10. The wind tunnel capable of simulating a multi-angle fan array according to claim 4, characterized in that: Two symmetrically distributed guide rings (32) are fixedly mounted on the inner side of the mounting bracket (1), and an annular groove for limiting the sliding of the guide rings (32) is provided on the outer side of the mounting ring (2).

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