A multifunctional pneumatic target lifting and lowering system

Abstract

The present invention discloses a multifunctional pneumatic target lifting and lowering system, wherein one end of a first hard target body is hinged to a first articulated lever, the other end of the first hard target body is fixedly provided with a second articulated lever, one end of a second hard target body is hinged to the second articulated lever, the other end of the second hard target body is fixedly provided with a third articulated lever, the power output end of a driving mechanism is hinged to the third articulated lever, a first flexible target body and a second flexible target body are respectively provided at two ends of the second articulated lever, a low end of a support rod is detachably mounted on the upper surface of the first hard target body, and a high end of the support rod is connected to a wind-resistant target body. The present invention improves the wind-resistant performance of the equipment by providing a wind-resistant target body, adopts a flat-push lifting type to replace the traditional rotary lifting type, reduces the complexity and failure rate of the transmission structure, and replaces the traditional two-dimensional planar target body with a three-dimensional target body, which can more realistically simulate three-dimensional targets in an actual battlefield environment and improve the effect of simulation training.

Description

Technical Field

[0001] The invention belongs to the technical field of simulation training devices, and in particular relates to a multifunctional pneumatic target raising and lowering system. Background Art

[0002] The existing targets of the lifting and lowering targets are all two-dimensional plane structures. After the target is raised, it can only be seen within a certain range on the front and back of the target, and the shooting points on the left and right sides of the target are always difficult to observe the target. When simulating the coordinated shooting of multiple troops, the troops on the left and right sides of the target will be misjudged as unqualified because they cannot observe the shooting target. However, in the actual battlefield environment, whether it is a building, a vehicle or a tank, they are all three-dimensional targets, and the troops located around the shooting target can be clearly observed, which greatly reduces the effect of the simulation training and will also mislead the commander's judgment on the tactical effect. On the other hand, when the plate-shaped target is used to simulate the helicopter attack target, due to its large area and weak wind resistance, it cannot be used when the wind speed is slightly higher, and it cannot simulate the actual battlefield environment for training.

[0003] In addition, conventional lifting and lowering targets all use a rotary lifting method, which has a complex transmission structure and a single function. It is easily contaminated by dust in the field environment and may cause it to get stuck. It has a high failure rate and low reliability. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a multifunctional pneumatic target lifting and lowering system, which provides a wind-resistant target body to improve the wind-resistant performance of the equipment, adopts a flat-push lifting method instead of the traditional rotary lifting method to reduce the complexity and failure rate of the transmission structure, and replaces the traditional two-dimensional planar target body with a three-dimensional target body, which can more realistically simulate the three-dimensional targets in the actual battlefield environment and improve the effect of simulation training.

[0005] In order to achieve the above-mentioned purpose, the solution adopted by the present invention is: a multifunctional pneumatic target lifting and lowering system, including a mounting seat, a driving mechanism, a hard target surface, a flexible target surface, a support rod and a wind-resistant target body; wherein the mounting seat is provided with a first articulated lever, the hard target surface includes a first hard target body and a second hard target body, one end of the first hard target body is hinged to the first articulated lever, the other end of the first hard target body is fixedly provided with a second articulated lever parallel to the first articulated lever, one end of the second hard target body is articulated to the second articulated lever, the other end of the second hard target body is fixedly provided with a third articulated lever parallel to the second articulated lever, the distance between the third articulated lever and the second articulated lever is equal to the distance between the second articulated lever and the first articulated lever; the power output end of the driving mechanism is articulated to the third articulated lever, and the driving mechanism is used to drive the third articulated lever to approach or move away from the first articulated lever, thereby causing the second articulated lever to rise or fall; the flexible target surface includes a first flexible target body and a second flexible target body, the first flexible target body and the second flexible target body The target bodies are respectively arranged at the two ends of the second articulated lever, and the first flexible target body and the second flexible target body are respectively connected to the second articulated lever, so that when the second articulated lever rises to the highest point, the first flexible target body and the second flexible target body are fully unfolded; the lower end of the support rod is detachably mounted on the upper surface of the first hard target body, the support rod is parallel to the upper surface of the first hard target body and perpendicular to the first articulated lever, and the upper end of the support rod is connected to the wind-resistant target body; the wind-resistant target body comprises a support frame, a transmission rod and a plurality of louver blades parallel to each other, the louver blade is located in the support frame, the end of the louver blade is close to the support frame, the louver blade is provided with a rotating shaft along its own length direction, the rotating shaft is located in the middle of the louver blade, the louver blade is rotatably connected to the support frame through the rotating shaft, and the louver blade can rotate around the central axis of the rotating shaft under the action of external force; the front edge of the louver blade is provided with a fourth articulated lever parallel to the rotating shaft, and the fourth articulated levers of the plurality of louver blades are simultaneously articulated to the transmission rod.

[0006] Through the above scheme, the equipment can be used as a helicopter target. At this time, the wind-resistant target body is used as the target body for helicopter simulated attack, and the hard target surface is used as a fixed support mechanism for the wind-resistant target body. The target lifting system provided by the present invention has various functions and is suitable for a variety of simulated training environments. The flat push lifting type is used instead of the traditional rotary lifting type. The equipment has a simple structure, is less likely to get stuck in the field environment, has a low failure rate, and has strong reliability; the three-dimensional target body is used instead of the traditional two-dimensional planar target body, which can more realistically simulate the three-dimensional target in the actual battlefield environment and improve the effect of simulation training.

[0007] Furthermore, the wind-resistant target body also includes a connecting screw, a locking nut and an L-shaped handle, one end of the connecting screw passes through the support frame and is fixedly connected to the rotating shaft of one of the louver blades, the other end of the connecting screw is connected to the power output end of the handle, the locking nut cooperates with the connecting screw, the locking nut is sleeved on the connecting screw, and the locking nut is located between the support frame and the handle.

[0008] Through the above scheme, the operator can easily drive the rotating shaft to rotate around its own central axis by turning the handle, thereby changing the inclination angle of the louver blades. When the inclination angle of the louver blades is adjusted, the locking nut and the louver blade connected to the connecting screw are both pressed against the support frame, and the free rotation of the louver blades can be prevented by the action of friction.

[0009] Furthermore, the upper part of the first flexible target body and the upper part of the second flexible target body are both provided with mounting holes, the first flexible target body is sleeved on one end of the second articulated rod through the mounting holes, and the second flexible target body is sleeved on the other end of the second articulated rod through the mounting holes. When the second articulated rod rises to a certain position, the flexible target body naturally hangs down under the action of gravity, and the flexible target body can always cover the triangle formed by the first hard target body, the second hard target body and the mounting seat, so that the device has a strong three-dimensional sense.

[0010] Furthermore, a counterweight rod is provided at the bottom of each of the first flexible target body and the second flexible target body, and the counterweight rod is provided to facilitate the natural unfolding of the flexible target body.

[0011] Furthermore, the driving mechanism is a cylinder. When the equipment is used as an armored target lifting and falling, the cylinder can push the third articulated rod to move quickly, and the target body can be raised and lowered at a fast speed. When the equipment is used as a helicopter target lifting and falling, the cylinder can accurately drive the third articulated rod to a predetermined position, thereby pushing the wind-resistant target body to accurately rise to a predetermined height.

[0012] Furthermore, an insertion rod is provided at the bottom of the mounting seat, and the driving mechanism is fixedly arranged below the mounting seat. The free end of the cylinder shaft of the driving mechanism is hinged to the midpoint of the third articulated rod, so as to avoid the third articulated rod from getting stuck due to uneven force at both ends.

[0013] Furthermore, the mounting seat is provided with a limiting groove, the length direction of the limiting groove is parallel to the movement direction of the third articulated rod, the end of the third articulated rod is clamped in the limiting groove, and the third articulated rod is limited by the limiting groove. The elastic force of the limiting groove on the third articulated rod can offset the vertical force acting on the third articulated rod, thereby improving the stability of the equipment operation.

[0014] Furthermore, a roller is sleeved on the end of the third articulated lever, and the roller can rotate around the central axis of the third articulated lever. The roller is located in the limiting groove, and the third articulated lever is supported by the roller, so that the third articulated lever moves more smoothly and is less likely to get stuck.

[0015] Furthermore, a mounting boss and a fixing bolt are provided on the upper surface of the first hard target body, a mounting blind hole matching with the support rod is provided in the mounting boss, a threaded through hole matching with the fixing bolt is provided on the side wall of the mounting blind hole, and the fixing bolt passes through the threaded through hole and extends into the mounting blind hole, so that the installation, fixing and disassembly of the support rod and the wind-resistant target body are very convenient.

[0016] The beneficial effects of the present invention are:

[0017] (1) When the support rod and the wind-resistant target body are disassembled, the device can be used as an armored take-off target, and the triangular prism formed by the hard target surface and the flexible target surface serves as the target body of the armored take-off target. When the support rod and the wind-resistant target body are installed on the first hard target body, the device can be used as a helicopter take-off target. At this time, the wind-resistant target body serves as the target body of the helicopter simulated attack, and the hard target surface serves as a fixed support mechanism for the wind-resistant target body. The take-off target system provided by the present invention has various functions and is suitable for a variety of simulated training environments;

[0018] (2) The driving mechanism is used to push the third articulated bar towards or away from the first articulated bar, thereby causing the second articulated bar to rise or fall. The horizontal push lifting method is used instead of the traditional rotary lifting method. The equipment has a simple structure, is less likely to get stuck in the field environment, has a low failure rate, and is highly reliable.

[0019] (3) When the second articulated bar rises to a certain position, the flexible target surface covers the triangle formed by the first hard target body, the second hard target body and the mounting seat. When the equipment is used as an armored lifting and falling target, the target body of the armored lifting and falling target is in the shape of a triangular prism. The three-dimensional target body replaces the traditional two-dimensional planar target body, which can more realistically simulate the three-dimensional target in the actual battlefield environment and improve the effect of simulation training;

[0020] (4) The conventional rotating target lifting and lowering support rod and the base are connected only by hinged rods, and the connection between the base and the support rod is fragile and unstable. When the present invention is used as a helicopter target lifting and lowering target, the triangular prism formed by the hard target surface and the mounting seat serves as a fixed support mechanism for the support rod and the wind-resistant target body, and the mounting seat and the hard target surface support the support rod in a three-dimensional support manner, so the equipment has high structural strength and good stability.

[0021] (5) The target surface of the wind-resistant target is composed of a plurality of parallel louver blades. When in use, the front of the louver blades is tilted upward. When the operator on the helicopter looks down at the wind-resistant target from a high altitude, the adjacent louver blades are stacked on top of each other, and visually, a complete target surface is still presented. Since there are gaps between the louver blades, when the airflow blows onto the target surface of the wind-resistant target, the airflow can pass through the gaps between the blades. In particular, when the wind direction is parallel to the louver blades, the windward surface of the wind-resistant target is extremely small, which greatly reduces the wind force on the target, improves the wind resistance of the equipment, and can simulate hypothetical attack targets in a more realistic environment;

[0022] (6) The louver blades can rotate around the central axis of the shaft, and the inclination angle of the louver blades can be adaptively adjusted according to the flight altitude of the helicopter, and the equipment has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of the present invention when used as a helicopter target lift;

[0024] Figure 2 It is a top view of the target body in a fallen state when the present invention is used as an armor lifting and falling target;

[0025] Figure 3 For the present invention Figure 2 A top view of the structure in the state;

[0026] Figure 4 For the present invention Figure 2 Schematic diagram of the front view structure in the state;

[0027] Figure 5 It is a top view of the target body in a raised state when the present invention is used as an armor lifting and falling target;

[0028] Figure 6 For the present invention Figure 5 A top view of the structure in the state;

[0029] Figure 7 For the present invention Figure 5 Schematic diagram of the front view structure in the state;

[0030] Figure 8 It is a schematic diagram of the installation position of the roller of the present invention;

[0031] Fig. 9 It is a front view of the flexible target surface of the present invention;

[0032] Fig.10 It is a schematic diagram of the positional relationship between the mounting boss and the first hard target body of the present invention;

[0033] Fig.11 A schematic diagram of the positional relationship between the shutter blades and the support frame of the present invention;

[0034] Fig.12 It is a schematic diagram of the transmission rod structure of the present invention;

[0035] Fig.13 It is a schematic diagram of the connection structure between the shutter blades, the transmission rod and the handle of the present invention;

[0036] Fig.14 for Fig.13 A partial enlarged view of the transmission rod;

[0037] In the accompanying drawings: 1-mounting seat, 11-first articulated lever, 12-mounting plate, 13-limiting groove, 14-roller, 15-allowing through hole, 16-connecting piece, 2-driving mechanism, 3-hard target surface, 31-first hard target body, 32-second hard target body, 33-second articulated lever, 34-third articulated lever, 35-mounting boss, 36-fixing bolt, 37-mounting blind hole, 4-flexible target surface, 41-first flexible target body, 42-second flexible target body, 43-mounting through hole, 44-counterweight rod, 5-insertion rod, 6-support rod, 7-wind-resistant target body, 71-support frame, 72-transmission rod, 73-louver blades, 74-rotating shaft, 75-fourth articulated lever, 76-connecting screw, 77-locking nut, 78-handle, 79-sleeve. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with the accompanying drawings:

[0039] This embodiment provides a multifunctional pneumatic target lifting and lowering system. Figure 1 As shown in the figure, it includes a mounting seat 1, a driving mechanism 2, a hard target surface 3, a flexible target surface 4, a support rod 6 and a wind-resistant target body 7; the mounting seat 1 is provided with a first hinged lever 11, the hard target surface 3 is usually made of a stainless steel plate, the hard target surface 3 includes a first hard target body 31 and a second hard target body 32, one end of the first hard target body 31 is hinged to the first hinged lever 11, the other end of the first hard target body 31 is fixedly provided with a second hinged lever 33 parallel to the first hinged lever 11, one end of the second hard target body 32 is hinged to the second hinged lever 33, and the other end of the second hard target body 32 A third articulated lever 34 parallel to the second articulated lever 33 is fixedly provided, and the distance between the third articulated lever 34 and the second articulated lever 33 is equal to the distance between the second articulated lever 33 and the first articulated lever 11; the driving mechanism 2 is arranged on one side of the first hard target body 31 and the second hard target body 32, and one end of the driving mechanism 2 is fixed on one side of the first articulated lever 11, and the power output end of the driving mechanism 2 is hinged to the third articulated lever 34. The driving mechanism 2 is used to drive the third articulated lever 34 to approach or move away from the first articulated lever 11, thereby causing the second articulated lever 33 to rise or fall.

[0040] The flexible target surface 4 is made of nylon, vinylon or polyester. The flexible target surface 4 includes a first flexible target body 41 and a second flexible target body 42. The first flexible target body 41 and the second flexible target body 42 are both isosceles triangles. The bottoms of the first flexible target body 41 and the second flexible target body 42 are both provided with a counterweight rod 44 (such as Fig. 9 The upper part of the first flexible target body 41 and the upper part of the second flexible target body 42 are both provided with a mounting through hole 43, and the first flexible target body 41 is sleeved on one end of the second hinged lever 33 through the mounting through hole 43, and the second flexible target body 42 is sleeved on the other end of the second hinged lever 33 through the mounting through hole 43.

[0041] Please refer to Figure 5 , Figure 6 and Figure 7 When the equipment is used as an armored target, the second articulated rod 33 rises to a certain position (in this embodiment, the angle between the first hard target body 31 and the second hard target body 32 is 60 degrees), the bottoms of the first flexible target body 41 and the second flexible target body 42 are close to the first articulated rod 11 side of the mounting seat 1, and the flexible target surface 4 is fully unfolded and covers the triangle formed by the first hard target body 31, the second hard target body 32 and the mounting seat 1. Please refer to Figure 2 , Figure 3 and Figure 4 When the third articulated rod 34 moves to the position farthest from the first articulated rod 11, the first articulated rod 11, the second articulated rod 33 and the third articulated rod 34 are not in a straight line, and the second articulated rod 33 is higher than the first articulated rod 11 and the third articulated rod 34, so that when the third articulated rod 34 approaches the first articulated rod 11, the second articulated rod 33 can rise smoothly.

[0042] In one embodiment, the driving mechanism 2 is a cylinder, the mounting seat 1 is in the shape of a rectangular parallelepiped, and a plug rod 5 is provided at the bottom of the mounting seat 1. The plug rod 5 can be inserted into the soil to firmly fix the mounting seat 1, thereby improving the stability and wind resistance of the device. The mounting seat 1 is provided with a mounting plate 12, and the mounting plate 12 is provided with a clearance hole 15. The driving mechanism 2 is fixedly installed below the mounting plate 12, and the cylinder shaft of the driving mechanism 2 passes through the clearance hole 15 through a connecting piece 16 and is hinged to the midpoint of the third articulated rod 34, so that the two ends of the third articulated rod 34 can be prevented from being stuck due to uneven force.

[0043] In order to further improve the stability of the movement of the third hinged lever 34, please refer to Figure 8 The mounting seat 1 is provided with a limiting groove 13, the length direction of the limiting groove 13 is parallel to the movement direction of the third articulated rod 34, and a roller 14 is sleeved on the end of the third articulated rod 34. The roller 14 can rotate around the central axis of the third articulated rod 34. The roller 14 is located in the limiting groove 13, and the third articulated rod 34 is supported by the roller 14.

[0044] The lower end of the support rod 6 is detachably mounted on the upper surface of the first hard target body 31, the support rod 6 is parallel to the upper surface of the first hard target body 31 and perpendicular to the first hinge rod 11, and the upper end of the support rod 6 is connected to the wind-resistant target body 7. Figure 1 and Fig.11 The wind-resistant target body 7 includes a support frame 71, a transmission rod 72 and a plurality of louver blades 73 parallel to each other. The support frame 71 is a cylindrical structure with openings at both ends. A mounting through hole is provided on the support frame 71. The louver blade 73 is located in the support frame 71. The end of the louver blade 73 is close to the support frame 71. The louver blade 73 is provided with a rotating shaft 74 that matches the mounting through hole along its own length direction. The rotating shaft 74 is located in the middle of the louver blade 73. The rotating shaft 74 is inserted into the mounting through hole. The louver blade 73 is rotatably connected to the support frame 71 through the rotating shaft 74. The louver blade 73 can rotate around the central axis of the rotating shaft 74 under the action of external force; a fourth hinged lever 75 parallel to the rotating shaft 74 is provided at the front edge of the louver blade 73, and the fourth hinged levers 75 of multiple louver blades 73 are hinged to the transmission rod 72 at the same time.

[0045] Specifically, in this embodiment, the support rod 6 and the wind-resistant target body 7 are both made of carbon fiber material, which is light in weight and has high structural strength. Fig.10 As shown, the upper surface of the first hard target body 31 is provided with a mounting boss 35 and a fixing bolt 36, and a mounting blind hole 37 matched with the support rod 6 is provided in the mounting boss 35. The mounting blind hole 37 is cylindrical, and the central axis of the mounting blind hole 37 is parallel to the upper surface of the first hard target body 31 and perpendicular to the first hinged lever 11, and the end face diameter of the mounting blind hole 37 is slightly larger than the end face diameter of the support rod 6. The side wall of the mounting blind hole 37 is provided with a threaded through hole matched with the fixing bolt 36, and the fixing bolt 36 passes through the threaded through hole and extends into the mounting blind hole 37, and the end of the fixing bolt 36 is pressed against the peripheral wall of the support rod 6, thereby firmly fixing the support rod 6 on the first hard target body 31.

[0046] When the third articulated rod 34 moves to the farthest position from the first articulated rod 11, the bottom height of the wind-resistant target body 7 is slightly higher than the top of the mounting base 1. When the third articulated rod 34 moves to the closest position to the first articulated rod 11, the rotating shaft 74 is parallel to the horizontal plane, and the angle between the first hard target body 31 and the second hard target body 32 is 25 degrees.

[0047] In one embodiment, if Figure 1 , Fig.13 and Fig.14 As shown, the fourth hinged lever 75 is located at the midpoint of the line connecting the two ends of the shutter blade 73, and the transmission rod 72 is provided with a sleeve 79 (as shown in FIG. Fig.12As shown in FIG. 1 , sleeve 79 is sleeved on the fourth articulated lever 75, and transmission rod 72 is perpendicular to rotating shaft 74. By drawing a target point on the front side of shutter blade 73 and transmission rod 72, transmission rod 72 can also be used as a positioning rod for assisting helicopter aiming.

[0048] In one embodiment, if Figure 1 and Fig.13 As shown, the wind-resistant target body 7 is also provided with a connecting screw 76, a locking nut 77 and an L-shaped handle 78. One end of the connecting screw 76 passes through the support frame 71 and is fixedly connected to the rotating shaft 74 of the louver blade 73 near the diameter position of the support frame 71. The other end of the connecting screw 76 is connected to the power output end of the handle 78. The locking nut 77 cooperates with the connecting screw 76. The locking nut 77 is sleeved on the connecting screw 76, and the locking nut 77 is located between the support frame 71 and the handle 78. In this way, the operator can easily drive the rotating shaft 74 to rotate around its own central axis by rotating the handle 78, thereby changing the inclination angle of the louver blade 73. When the inclination angle of the louver blade 73 is adjusted, the locking nut 77 is rotated to move it toward the support frame 71. Finally, the locking nut 77 and the louver blade 73 connected to the connecting screw 76 are both pressed against the support frame 71, and the louver blade 73 can be prevented from rotating freely by the action of friction.

[0049] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A multifunctional pneumatic target lifting and lowering system, characterized by: It comprises a mounting seat (1), a driving mechanism (2), a hard target surface (3), a flexible target surface (4), a support rod (6) and a wind-resistant target body (7); wherein: The mounting seat (1) is provided with a first hinged lever (11), and the hard target surface (3) comprises a first hard target body (31) and a second hard target body (32), one end of the first hard target body (31) is hinged to the first hinged lever (11), the other end of the first hard target body (31) is fixedly provided with a second hinged lever (33) parallel to the first hinged lever (11), one end of the second hard target body (32) is hinged to the second hinged lever (33), the other end of the second hard target body (32) is fixedly provided with a third hinged lever (34) parallel to the second hinged lever (33), and the distance between the third hinged lever (34) and the second hinged lever (33) is equal to the distance between the second hinged lever (33) and the first hinged lever (11); The power output end of the driving mechanism (2) is hinged to the third articulated rod (34), and the driving mechanism (2) is used to drive the third articulated rod (34) to approach or move away from the first articulated rod (11), thereby causing the second articulated rod (33) to rise or fall; The flexible target surface (4) comprises a first flexible target body (41) and a second flexible target body (42), wherein the first flexible target body (41) and the second flexible target body (42) are respectively arranged at two ends of the second articulated rod (33), and the first flexible target body (41) and the second flexible target body (42) are respectively connected to the second articulated rod (33), so that when the second articulated rod (33) rises to the highest point, the first flexible target body (41) and the second flexible target body (42) are fully unfolded; The lower end of the support rod (6) is detachably mounted on the upper surface of the first hard target body (31), the support rod (6) is parallel to the upper surface of the first hard target body (31) and perpendicular to the first hinged rod (11), and the upper end of the support rod (6) is connected to the wind-resistant target body (7); a mounting boss (35) and a fixing bolt (36) are provided on the upper surface of the first hard target body (31), a mounting blind hole (37) matched with the support rod (6) is provided in the mounting boss (35), a threaded through hole matched with the fixing bolt (36) is provided on the side wall of the mounting blind hole (37), and the fixing bolt (36) passes through the threaded through hole and extends into the mounting blind hole (37); The wind-resistant target body (7) comprises a support frame (71), a transmission rod (72) and a plurality of louver blades (73) parallel to each other, wherein the louver blade (73) is located in the support frame (71), and the end of the louver blade (73) is close to the support frame (71), and the louver blade (73) is provided with a rotating shaft (74) along its length direction, and the rotating shaft (74) is located in the middle of the louver blade (73), and the louver blade (73) is rotatably connected to the support frame (71) through the rotating shaft (74), and the louver blade (73) can rotate around the central axis of the rotating shaft (74) under the action of external force; a fourth hinged lever (75) parallel to the rotating shaft (74) is provided at the front edge of the louver blade (73), and the fourth hinged levers (75) of the plurality of louver blades (73) are simultaneously hinged to the transmission rod (72); The wind-resistant target body (7) further comprises a connecting screw (76), a locking nut (77) and an L-shaped handle (78); one end of the connecting screw (76) passes through the support frame (71) and is fixedly connected to a rotating shaft (74) of one of the louver blades (73); the other end of the connecting screw (76) is connected to a power output end of the handle (78); the locking nut (77) cooperates with the connecting screw (76); the locking nut (77) is sleeved on the connecting screw (76); and the locking nut (77) is located between the support frame (71) and the handle (78).

2. The multifunctional pneumatic target lifting and lowering system according to claim 1 is characterized in that: The upper part of the first flexible target body (41) and the upper part of the second flexible target body (42) are both provided with mounting through holes (43); the first flexible target body (41) is sleeved on one end of the second hinged rod (33) through the mounting through holes (43); and the second flexible target body (42) is sleeved on the other end of the second hinged rod (33) through the mounting through holes (43).

3. The multifunctional pneumatic target lifting and lowering system according to claim 2 is characterized in that: The bottoms of the first flexible target body (41) and the second flexible target body (42) are both provided with a counterweight rod (44).

4. The multifunctional pneumatic target lifting and lowering system according to claim 1 is characterized in that: The driving mechanism (2) is a cylinder.

5. The multifunctional pneumatic target lifting and lowering system according to claim 4 is characterized in that: The bottom of the mounting seat (1) is provided with an insertion rod (5), and the driving mechanism (2) is fixedly arranged below the mounting seat (1).

6. The multifunctional pneumatic target lifting and lowering system according to claim 5 is characterized in that: The free end of the cylinder shaft of the driving mechanism (2) is hinged to the midpoint of the third hinged lever (34).

7. The multifunctional pneumatic target lifting and lowering system according to claim 6 is characterized in that: The mounting seat (1) is provided with a limiting groove (13), the length direction of the limiting groove (13) is parallel to the movement direction of the third hinged rod (34), and the end of the third hinged rod (34) is clamped in the limiting groove (13).

8. The multifunctional pneumatic target lifting and lowering system according to claim 7 is characterized in that: A roller (14) is sleeved on the end of the third articulated lever (34); the roller (14) is capable of rotating around the central axis of the third articulated lever (34); and the roller (14) is located in the limiting groove (13).

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