Outdoor mobile wind tunnel for paratrooper training

Abstract

The application relates to the technical field of paratrooper training, in particular to an outdoor mobile wind tunnel for paratrooper training, which comprises a load-bearing seat, the bottom of the load-bearing seat is provided with a stabilizing mechanism capable of preventing the unevenness of a foundation, the stabilizing mechanism comprises an electric push rod, a wear-resistant pad and a pressure sensor, the bottom surface of the output end of the electric push rod is fixedly connected with the wear-resistant pad, the wear-resistant pad is in contact with the foundation, and the wear-resistant pad is embedded with the pressure sensor. The four electric push rods are started in a certain order, such as diagonal lines or clockwise, the wear-resistant pads on the electric push rods are sequentially in contact with the ground, and when the pressure value of the ground contacted by the rear pressure sensor reaches the preset value of a controller, the electric push rod stops working, at the moment, the fan can be in a balanced and stable state, that is, the fan is suitable for uneven outdoor places, and in the process of using the fan, the airflow direction of the air duct can be prevented from losing control, so that the training result is not distorted.

Description

Technical Field

[0001] This application relates to the field of paratrooper training technology, and in particular to an outdoor mobile wind tunnel for paratrooper training. Background Technology

[0002] A wind tunnel is a pipe-shaped experimental device that simulates the flow of gas around an object by artificially generating and controlling airflow, measuring the effect of airflow on the object, and observing physical phenomena. In paratrooper training, a stable airflow is generated by a fan system, and the airflow speed, direction, and turbulence are controlled by the design of the wind tunnel to simulate the aerodynamic conditions of an object in a real environment. At the same time, the air outlet of the fan is equipped with a wind tunnel, which facilitates paratroopers to train in the wind tunnel.

[0003] Regarding the aforementioned related technologies, the inventors have discovered the following drawbacks:

[0004] In outdoor training environments, the ground is uneven. If the fan is not placed stably, the airflow direction in the duct will become uncontrollable, thus affecting the training effect. Furthermore, if the fan's air inlet is not equipped with a structure to prevent foreign objects from entering, foreign objects may enter the fan impeller and cause damage to the fan.

[0005] Therefore, in response to the above problems, the applicant provides an outdoor mobile wind tunnel for paratrooper training. Utility Model Content

[0006] To address the problems mentioned in the background section, this application provides an outdoor mobile wind tunnel for paratrooper training.

[0007] This application provides an outdoor mobile wind tunnel for paratrooper training, which adopts the following technical solution:

[0008] An outdoor mobile wind tunnel for paratrooper training includes a support base. The bottom of the support base is equipped with a stabilizing mechanism to prevent unevenness of the foundation. The stabilizing mechanism includes an electric push rod, a wear-resistant pad, and a pressure sensor. The bottom surface of the output end of the electric push rod is fixedly connected to the wear-resistant pad, the wear-resistant pad is in contact with the foundation, and the wear-resistant pad is embedded with a pressure sensor.

[0009] It also includes a support component, the air inlet of which is equipped with an interception mechanism to prevent foreign objects from entering. The interception mechanism includes a nylon mesh, a metal foam filter, and a detection ring. The nylon mesh, the metal foam filter, and the detection ring are all mounted on a sleeve, which is installed at the air inlet of the fan.

[0010] Optionally, a connecting plate is fixedly connected to each of the four corners at the bottom of the support base, and a connecting piece at the top of the universal wheel is fixedly connected to both sides of the bottom of the connecting plate. The base of the electric push rod input end is fixedly connected to the bottom surface of the middle part of the connecting plate.

[0011] Optionally, the wear-resistant pad has a vertical through hole, in which a pressure sensor is embedded. The bottom surface of the wear-resistant pad is engraved with embossed textures, which contact the foundation.

[0012] Optionally, a fan is fixedly connected to the center of the top surface of the load-bearing seat, and protective railings are fixedly connected to the front, back, left, and right sides of the top surface of the load-bearing seat. A protective door is rotatably connected to one of the protective railings, and a controller is fixedly connected to the protective door. The electric push rod and the pressure sensor are both electrically connected to the controller.

[0013] Optionally, the connecting plate, casters, electric push rod, wear-resistant pad, pressure sensor, and controller are combined to form a support assembly, with the casters suspended between the load-bearing base and the foundation.

[0014] Optionally, a sleeve is fitted to the air inlet of the fan, and a nut is connected to the sleeve in a ring-shaped threaded array. One end of the nut is screwed into the air inlet of the fan.

[0015] Optionally, the sleeve is located on the opposite side of the fan and has multiple threaded holes arranged in a ring array. A nylon mesh is attached to the sleeve located on the threaded holes. Multiple through holes are arranged in a ring array on the nylon mesh. A screw passes through the through hole of the nylon mesh and is threaded into the threaded hole.

[0016] Optionally, the sleeve has grooves arranged in a ring array on the interior of both sides. The outer circumference of the metal foam filter and the detection ring is fixedly connected to sliders that match the grooves. The sliders of the metal foam filter and the detection ring are slidably connected to the grooves. Each slider has two screws that pass through it and rotate to the corresponding sides of the sleeve. The metal foam filter is located between the nylon mesh and the detection ring.

[0017] Optionally, the fan outlet is flanged and connected to a duct, an inlet is provided on one side of the duct, a protective net is fixedly connected to the top of the inlet, a staircase is fixedly connected to the side of the duct at the inlet, and a support column is fixedly connected to the bottom of the staircase and one end is fixed to the top surface of the load-bearing seat.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] 1. This utility model uses four electric push rods to start in a certain order, such as diagonally or clockwise. The wear-resistant pads on the electric push rods contact the ground in sequence. When the pressure value of the pressure sensor on the ground reaches the preset value of the controller, the electric push rods stop working. At this time, the fan can be in a balanced and stable state. This is suitable for use in uneven outdoor places and avoids the loss of control of the airflow direction in the duct, which would lead to the distortion of training results.

[0020] 2. This utility model achieves the effect of intercepting foreign objects layer by layer by sequentially setting nylon mesh, metal foam filter and detection ring at the air inlet of the fan, that is, to prevent foreign objects from entering the fan impeller and causing damage to it. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the overall rear view structure in an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the stabilizing mechanism structure in the embodiments of this application;

[0024] Figure 4 This is a schematic diagram of the stabilizing mechanism split structure in an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the split structure of the interception component in an embodiment of this application.

[0026] Reference numerals: 1. Load-bearing base; 2. Support assembly; 20. Connecting plate; 21. Caster wheel; 22. Electric push rod; 23. Wear-resistant pad; 230. Through hole; 24. Pressure sensor; 25. Controller; 3. Fan; 4. Interception assembly; 40. Sleeve; 400. Slide groove; 41. Nylon mesh; 42. Screw; 43. Metal foam filter; 44. Detection ring; 5. Air duct; 50. Inlet; 51. Protective net; 6. Staircase; 7. Guardrail; 70. Protective door; 8. Foundation. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0028] This application discloses an outdoor mobile wind tunnel for paratrooper training.

[0029] like Figure 1-5 As shown, an outdoor mobile wind tunnel for paratrooper training includes a support base 1. The bottom of the support base 1 is equipped with a nylon mesh 41, which is mainly used to intercept large foreign objects such as leaves and stones to prevent them from entering the interior of the wind turbine 3. The stabilizing mechanism for uneven foundation 8 includes an electric push rod 22, a wear-resistant pad 23, and a pressure sensor 24. The bottom surface of the output end of the electric push rod 22 is fixedly connected to the wear-resistant pad 23. The wear-resistant pad 23 is in contact with the ground of the foundation 8. The pressure sensor 24 is embedded in the wear-resistant pad 23.

[0030] It also includes a support component 2, the air inlet of which is provided with an interception mechanism to prevent foreign objects from entering. The interception mechanism includes a nylon mesh 41, a metal foam filter 43, and a detection ring 44. The nylon mesh 41, the metal foam filter 43, and the detection ring 44 are all disposed on a sleeve 40, which is installed at the air inlet of the fan 3.

[0031] Please see Figure 3 and Figure 4 The four corners of the bottom of the load-bearing base 1 are each fixedly connected to a connecting plate 20. The two sides of the bottom of the connecting plate 20 are each fixedly connected to the top of the universal wheel 21. The bottom surface of the middle part of the connecting plate 20 is fixedly connected to the base of the input end of the electric push rod 22. The universal wheel 21 can be connected to the connecting plate 20 by welding, fixing or bolting. All of these are conventional installation methods. The choice of method depends on the application scenario in actual application. It will not be elaborated here.

[0032] Please see Figure 4 The wear-resistant pad 23 has a vertical through hole 230, and a pressure sensor 24 is embedded in the through hole 230. The bottom surface of the wear-resistant pad 23 is engraved with concave and convex patterns, which contact the foundation 8. The concave and convex patterns are mainly designed to increase the friction with the foundation 8.

[0033] Please see Figure 2 A fan 3 is fixedly connected to the center of the top surface of the load-bearing seat 1. Guardrails 7 are fixedly connected to the four sides of the top surface of the load-bearing seat 1. A guardrail 70 is rotatably connected to one of the guardrails 7. A controller 25 is fixedly connected to the guardrail 70. The electric push rod 22 and the pressure sensor 24 are electrically connected to the controller 25. The opening and closing of the electric push rod 22 and the pressure sensor 24 are automatically controlled by the controller 25.

[0034] Please see Figures 1 to 4 The connecting plate 20, casters 21, electric push rods 22, wear-resistant pads 23, pressure sensors 24, and controller 25 are combined to form a support assembly 2. The casters 21 are suspended between the load-bearing seat 1 and the foundation 8. The fan 3 moves to the designated area of ​​the foundation 8 via the casters 21. Then, the four electric push rods 22 are controlled to start in a certain order, such as diagonally or clockwise. The wear-resistant pads 23 on the electric push rods 22 contact the ground in sequence. When the pressure value of the pressure sensor 24 in contact with the ground reaches the preset value of the controller 25, the electric push rods 22 stop working. As the output end of the electric push rod 22 is pushed out from the input end and contacts the foundation 8, the input end of the electric push rod 22 moves upward and drives the connecting plate 20 and the casters 21 to be in a suspended state.

[0035] Please see Figure 1 and Figure 5A sleeve 40 is attached to the air inlet of the fan 3. Nuts are connected to the sleeve 40 in a ring-shaped threaded pattern. One end of the nut is screwed into the air inlet of the fan 3. The sleeve 40 connected to the air inlet of the fan 3 by the nut is mainly to facilitate the removal of the sleeve 40 from the air inlet of the fan 3.

[0036] Please see Figure 1 and Figure 5 The sleeve 40 is located on the opposite side of the fan 3 and has multiple threaded holes arranged in a ring. A nylon mesh 41 is attached to the sleeve 40 located on the threaded holes. Multiple through holes are arranged in a ring on the nylon mesh 41. A screw 42 passes through the through hole of the nylon mesh 41 and is threaded into the threaded hole. The nylon mesh 41 is mainly used to intercept large foreign objects such as leaves and stones to prevent them from entering the interior of the fan 3.

[0037] Please see Figure 5 The sleeve 40 has grooves 400 arranged in a ring array on both sides. The outer circumference of the metal foam filter 43 and the detection ring 44 are fixedly connected to sliders that match the grooves 400. The sliders of the metal foam filter 43 and the detection ring 44 are slidably connected to the grooves 400. Two screws pass through each slider and rotate to the corresponding sides of the sleeve 40. The metal foam filter 43 is located between the nylon mesh 41 and the detection ring 44. Both the metal foam filter 43 and the slider of the detection ring 44 have through holes for connection. Screw 2, and one end of screw 2 are both rotated into the threaded hole on one side of the slide groove 400 to lock the metal foam filter 43 and the detection ring 44. The sleeve 40, nylon mesh 41, screw 42, metal foam filter 43 and detection ring 44 are combined to form the interception component 4. The metal foam filter 43 is used to filter sand and dust and small insects. When the detection ring 44 is powered on by an external power source, it can adsorb metal parts such as umbrella buckles and screws that may fall off during training. The detection ring 44 is set in front of the impeller of the fan 3 mainly to prevent metal objects from entering the impeller and causing damage.

[0038] Please see Figure 1 The fan 3 has a flange connected to the air outlet of the air duct 5. An inlet 50 is provided on one side of the air duct 5. A protective net 51 is fixedly connected to the top of the inlet 50. A staircase 6 is fixedly connected to the side of the air duct 5 at the inlet 50. A support column is fixedly connected to the bottom of the staircase 6 and one end is fixed to the top surface of the load-bearing seat 1. The staircase 6 is supported by the support column to ensure its stability. It is used to allow paratroopers to enter the air duct 5 from the inlet 50 after passing through the staircase 6 for paratrooper training. The fan 3 and the air duct 5 are the two core components of the wind tunnel system. The fan 1, the air duct 5, and other wind tunnel control structures and principles not mentioned in this application are existing mature technologies and will not be described in detail here.

[0039] The implementation principle of an outdoor mobile wind tunnel for paratrooper training according to an embodiment of this application is as follows:

[0040] The fan 3 moves to the designated area of ​​the foundation 8 via the casters 21. The casters 21 contact the foundation 8, and then the manual control controller 25 controls the four electric push rods 22 to start in a certain sequence, such as diagonally or clockwise. The wear-resistant pads 23 on the electric push rods 22 contact the ground in sequence. When the pressure value of the pressure sensor 24 in contact with the ground reaches the preset value of the controller 25, the electric push rods 22 stop working. As the output end of the electric push rod 22 is pushed out from the input end and contacts the foundation 8, the input end of the electric push rod 22 moves upward and drives the connecting plate 20 and the casters 21 to be in a suspended state.

[0041] The nylon mesh 41 is mainly used to intercept large foreign objects such as leaves and pebbles to prevent them from entering the interior of the fan 3. The metal foam filter 43 is used to filter sand and small insects. The detection ring 44 can adsorb metal parts such as umbrella buckles and screws that may fall off during training when the external power supply is on. The detection ring 44 is set in front of the impeller of the fan 3 mainly to prevent metal objects from entering the impeller and causing damage.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An outdoor mobile wind tunnel for paratrooper training, characterized in that: The system includes a load-bearing base (1), and the bottom of the load-bearing base (1) is provided with a stabilizing mechanism to prevent unevenness of the foundation (8). The stabilizing mechanism includes an electric push rod (22), a wear-resistant pad (23), and a pressure sensor (24). The bottom surface of the output end of the electric push rod (22) is fixedly connected to the wear-resistant pad (23), and the ground surface of the wear-resistant pad (23) is in contact with the foundation (8). The wear-resistant pad (23) is embedded with a pressure sensor (24). It also includes a support component (2), the air inlet of which is provided with an interception mechanism to prevent foreign objects from entering. The interception mechanism includes a nylon mesh (41), a metal foam filter (43) and a detection ring (44). The nylon mesh (41), the metal foam filter (43) and the detection ring (44) are all set on a sleeve (40), which is installed at the air inlet of the fan (3).

2. The outdoor mobile wind tunnel for paratrooper training according to claim 1, characterized in that: The four corners of the bottom of the load-bearing seat (1) are each fixedly connected to a connecting plate (20). The two sides of the bottom of the connecting plate (20) are each fixedly connected to the top of the universal wheel (21). The bottom surface of the middle part of the connecting plate (20) is fixedly connected to the base of the input end of the electric push rod (22).

3. The outdoor mobile wind tunnel for paratrooper training according to claim 2, characterized in that: The wear-resistant pad (23) has a vertical through hole (230) and a pressure sensor (24) is embedded in the through hole (230). The bottom surface of the wear-resistant pad (23) is engraved with embossed textures, which are in contact with the foundation (8).

4. The outdoor mobile wind tunnel for paratrooper training according to claim 3, characterized in that: A fan (3) is fixedly connected to the middle of the top surface of the load-bearing seat (1). Guardrails (7) are fixedly connected to the front, back, left and right sides of the top surface of the load-bearing seat (1). A guardrail (70) is rotatably connected to one of the guardrails (7). A controller (25) is fixedly connected to the guardrail (70). The electric push rod (22) and the pressure sensor (24) are electrically connected to the controller (25).

5. The outdoor mobile wind tunnel for paratrooper training according to claim 4, characterized in that: The connecting plate (20), caster wheel (21), electric push rod (22), wear-resistant pad (23), pressure sensor (24) and controller (25) are combined to form a support assembly (2), and the caster wheel (21) is suspended between the load-bearing seat (1) and the foundation (8).

6. The outdoor mobile wind tunnel for paratrooper training according to claim 1, characterized in that: A sleeve (40) is attached to the air inlet of the fan (3), and a nut is connected to the sleeve (40) in a ring-shaped threaded pattern. One end of the nut is screwed into the air inlet of the fan (3).

7. The outdoor mobile wind tunnel for paratrooper training according to claim 6, characterized in that: The sleeve (40) is located on the opposite side of the fan (3) and has multiple threaded holes arranged in a ring. The sleeve (40) located on the threaded holes is fitted with a nylon mesh (41). The nylon mesh (41) has multiple through holes arranged in a ring. A screw (42) passes through the through hole of the nylon mesh (41) and is threaded into the threaded hole.

8. The outdoor mobile wind tunnel for paratrooper training according to claim 7, characterized in that: The sleeve (40) has grooves (400) arranged in a ring array on both sides. The outer circumference of the metal foam filter (43) and the detection ring (44) is fixedly connected with sliders that match the grooves (400). The sliders of the metal foam filter (43) and the detection ring (44) are slidably connected to the grooves (400). Each slider has two screws that pass through it and rotate to the corresponding sides of the sleeve (40). The metal foam filter (43) is located between the nylon mesh (41) and the detection ring (44).

9. An outdoor mobile wind tunnel for paratrooper training according to claim 1, characterized in that: The fan (3) has an air duct (5) connected to the air outlet flange. An inlet (50) is provided on one side of the air duct (5). A protective net (51) is fixedly connected to the top of the inlet (50). A staircase (6) is fixedly connected to the side of the air duct (5) at the inlet (50). A support column is fixedly connected to the bottom of the staircase (6) and one end is fixed to the top surface of the load-bearing seat (1).

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