Individual-soldier simulation target attitude transformation mechanism and method

Abstract

According to the single-soldier simulation target attitude transformation mechanism and method, the main shaft is driven to rotate through the servo motor, two sets of driving plates inside and outside the box body are driven to rotate at the same time, the included angle between the two sets of driving plates inside and outside the box body is 90 degrees, and the two sets of driving plates can sequentially drive two pairs of grooved wheels inside and outside the box body to rotate in the rotating process; and then the motion of the parallelogram-like connecting rod mechanisms on the two sides of the box body is controlled, finally, the simulation target is made to sequentially present four postures of a standing posture, a kneeling posture, a prone posture and a hiding posture, and the target is in a vertical state when in the standing posture and the kneeling posture and is in a lodging state when in the prone posture. The mechanism is closer to the real tactical action of an individual soldier. When observation is carried out at any position, the degree of similarity with a real target is high, and more verisimilitude is achieved.

Description

Technical Field

[0001] The invention relates to a single-soldier simulated target posture transformation mechanism and method. Background Art

[0002] In order to build a near-real combat environment and obtain a real combat experience, the troops have put forward higher requirements for the fidelity and intelligence of simulated targets. In live-fire shooting training, target drones are often used to simulate enemy single-soldier targets. At present, the patent announcements involving the posture change of single-soldier targets include the following two items:

[0003] On September 22, 2020, application number: CN202010662593.3, a multi-target switching device was disclosed. The target plate of the invention includes an upper target plate and a lower target plate. By controlling the action of the connecting rod mechanism, the position and angle of the upper and lower target plates can be changed, thereby simulating the standing, kneeling, lying and other tactical actions of a single soldier target. This scheme uses a flat target plate, which cannot present a three-dimensional effect in actual application. When the user observes from different positions, there is a large difference between the posture of the person presented in this way and the real target.

[0004] On December 23, 2022, application number: CN202011605347.0, a lifting and falling mechanism and a target reporting device with free switching of target surfaces are disclosed. The invention adopts a rotating mechanism to carry three kinds of planar target plates. The three target plates are arranged in a triangle, and the switching of different target surfaces is achieved by rotating the rotating mechanism. This scheme also uses a flat target plate, which cannot present the three-dimensional effect of a single soldier, and the realism is poor. Moreover, the three target surfaces are displayed and hidden at the same time. In actual use, the user will observe different postures in all directions, which is very different from the real scene. Moreover, there is still the problem of false target reporting when the three target surfaces are displayed and hidden at the same time.

[0005] Therefore, how to provide a posture change mechanism that can more realistically simulate the standing, kneeling, lying and concealed states of a single soldier target, with the standing and kneeling positions being in an upright state and the lying position being in a prone state; and when observed from different positions, the presented posture of the person is consistent with the real target, is a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0006] Purpose of the invention: The technical problem to be solved by the present invention is to provide a single-soldier simulated target posture change mechanism and method in view of the deficiencies in the prior art. The main shaft is driven by a servo motor, and two sets of dials inside and outside the box rotate synchronously with the main shaft, which in turn drives two pairs of groove wheels to rotate, and then controls the movement of the parallelogram-like connecting rod mechanism on both sides of the box, and finally makes the simulated target present four postures in sequence: standing, kneeling, lying, and concealed. The target is in a vertical state when standing and kneeling, and in a lying state when lying.

[0007] The present invention specifically provides a single-soldier simulated target posture change mechanism, comprising a box, a servo motor, a main shaft, a dial, a groove wheel, a crankshaft, and a target stand;

[0008] The servo motor is fixedly installed inside the box;

[0009] The spindle is mounted on the inner side plate of the box;

[0010] The servo motor and the main shaft are driven by a chain;

[0011] There are two crankshaft shafts, which are symmetrically mounted on the inner side panels of the box;

[0012] The outer contour of the dial is a crescent-shaped arc, including a concave arc and a convex locking arc, a cylindrical pin is provided on the symmetry line of the dial, and a dial mounting hole is provided at the center of the dial;

[0013] The dial mounting hole is coaxially and fixedly connected to the main shaft;

[0014] The dials are divided into two groups, one group is placed inside the box, and the other group is symmetrically arranged outside the box; the symmetry line between the dials inside the box and the dials outside the box is 90 degrees;

[0015] The groove wheel comprises four concave locking arcs and four radial grooves, the concave locking arcs and radial grooves are evenly distributed along the central circumference of the groove wheel, the concave locking arc has the same radius as the convex locking arc, the radial groove width is slightly larger than the diameter of the cylindrical pin, and the two can form a clearance fit after the cylindrical pin enters the radial groove, and there is a groove wheel mounting hole at the center of the groove wheel;

[0016] The groove wheel is divided into two groups, each group includes two concave locking arcs and two radial grooves, one group is placed inside the box, the groove wheel mounting hole is coaxial with the crank arm shaft and fixedly connected, the concave locking arc is tangent to the convex locking arc of the dial inside the box; the other group is symmetrically arranged outside the box, the groove wheel mounting hole is coaxial with the crank arm shaft and can rotate relatively, and the concave locking arc is tangent to the convex locking arc of the dial outside the box.

[0017] The target rack comprises a target rod tube, an upper curved arm, a lower curved arm, a rocker arm, and a connecting rod. There are two target racks, which are arranged on the left and right sides of the box body respectively to form two groups of symmetrical four-bar mechanisms. The connecting rod is used to fix the two groups of four-bar mechanisms.

[0018] The target rod tube has a fixed shaft at the inner top and the outer bottom respectively.

[0019] A circular hole is respectively provided at both ends of the upper curved arm and the lower curved arm.

[0020] The top of the rocker arm is in the shape of a disc, and the bottom end is provided with a circular hole. The center of the top disc is coaxial with the groove wheel mounting hole outside the box body and is fixedly connected with the groove wheel.

[0021] One end of the upper crank arm is hinged to the top fixed shaft inside the target rod tube through a circular hole, and the other end is coaxially and fixedly connected to the crank arm shaft through a circular hole.

[0022] One end of the lower crank arm is hinged to the fixed shaft at the bottom outside the target rod barrel through a circular hole, and the other end is hinged to the circular hole at the bottom end of the rocker arm through a circular hole.

[0023] The target rod barrel, the upper curved arm, the lower curved arm and the rocker arm form a parallelogram structure;

[0024] The distance between the center line of the top fixed shaft inside the target barrel and the center line of the bottom fixed shaft outside the target barrel is equal to the distance between the axis of the circular hole at the bottom end of the rocker arm and the center axis of the top disk;

[0025] The distance between the axes of the circular holes at both ends of the upper curved arm is equal to the distance between the axes of the circular holes at both ends of the lower curved arm;

[0026] The upper crank arm profile includes a straight line segment and an arc segment, and the distance between the center of the arc segment and the center of the circular hole at the end of the upper crank arm near the target rod barrel is equal to the distance between the axis of the circular hole at the bottom end of the rocker arm and the center axis of the top disk. During the movement, the arc segment of the upper crank arm can avoid interference with the connecting rod;

[0027] The lower crank arm profile includes a straight line segment and an arc segment, and the distance between the center of the arc segment and the center of the circular hole at the lower crank arm near the rocker arm is equal to the distance BC between the axis of the circular hole at the bottom end of the rocker arm and the center axis of the top disk. During the movement, the arc segment of the lower crank arm can avoid interference with the rocker arm;

[0028] The target rod tube has a hollow structure inside, an open top and a closed bottom;

[0029] A clamping mechanism is installed on the target rod tube to fix the simulated target.

[0030] The transmission mode between the servo motor and the main shaft includes coaxial transmission of a reducer, gear transmission, chain transmission, and synchronous belt rotation.

[0031] The present invention also provides a method for changing the posture of a single-soldier simulated target, which uses the single-soldier simulated target posture changing mechanism to realize the posture switching of the single-soldier simulated target between a standing posture, a kneeling posture, and a lying posture, comprising the following steps:

[0032] Step 1: before the servo motor starts to move, the upper crank arm and the rocker arm are both in a vertical state. Since the target rod barrel, the upper crank arm, the lower crank arm, and the rocker arm form a parallelogram structure, the target rod barrel also remains in a vertical state. At this time, the simulated target posture of the individual soldier is in a standing state;

[0033] Step 2: The servo motor drives the main shaft to rotate, and the two sets of dials inside and outside the box rotate synchronously with the main shaft. Since the symmetry line of the dial inside the box and the dial outside the box is 90 degrees, when the cylindrical pin of the inner dial enters the radial groove of the inner groove wheel, the convex locking arc of the outer dial of the box and the concave locking arc of the outer groove wheel are in a tangent state, and the movement of the outer groove wheel is locked. At this time, the rocker arm remains in a vertical state;

[0034] Step 3, the servo motor drives the main shaft to continue to rotate, and the cylindrical pin of the internal dial drives the internal groove wheel to rotate. Since the internal groove wheel is coaxial with the crank arm shaft and fixedly connected, it will drive the crank arm shaft to rotate; and because one end of the upper crank arm is coaxial with the crank arm shaft and fixedly connected through the circular hole, the upper crank arm will rotate synchronously. At this time, the convex locking arc of the dial outside the box and the concave locking arc of the external groove wheel are still in a tangent state, so the rocker arm continues to maintain a vertical state; since the target rod barrel, upper crank arm, lower crank arm, and rocker arm form a parallelogram structure, the target rod barrel will remain in a vertical state and reduce its height; when the upper crank arm rotates to a horizontal state, the simulated target posture of the single soldier is a kneeling state;

[0035] Step 4: The servo motor drives the main shaft to continue rotating. At this time, the cylindrical pin of the dial inside the box body begins to leave the radial groove of the inner groove wheel, and the cylindrical pin of the dial outside the box body begins to enter the radial groove of the outer groove wheel. At this time, the convex locking arc of the dial inside the box body and the concave locking arc of the inner groove wheel are in a tangent state, and the movement of the inner groove wheel is locked, so the upper crank arm remains in a horizontal state;

[0036] Step 5, the servo motor drives the main shaft to continue to rotate, and the external dial of the box body starts to drive the external groove wheel to rotate. Since the center of the top disk of the rocker arm is coaxial with the center of the external groove wheel of the box body and is fixedly connected to the groove wheel, the rocker arm rotates with the external groove wheel; since the target rod barrel, the upper crank arm, the lower crank arm, and the rocker arm form a parallelogram structure, the target rod barrel will rotate synchronously; when the rocker arm forms a small angle with the horizontal plane (for example, 3 to 5 degrees), the servo motor is controlled to stop rotating, and the angle between the target rod barrel and the horizontal plane also forms the same small angle (3 to 5 degrees), and the simulated target posture of the single soldier is in a prone state;

[0037] Step 6, the servo motor drives the main shaft to continue rotating. When the rocker arm rotates to a horizontal state, the target rod barrel also becomes a horizontal state. At this time, the single soldier simulated target posture is in a concealed state.

[0038] Beneficial effect: The present invention drives the main shaft through a servo motor, and the main shaft is driven by the servo motor to rotate, driving the two sets of dials inside and outside the box to rotate at the same time. Since the angle between the two sets of dials inside and outside is 90 degrees, the two sets of dials will respectively drive the two pairs of groove wheels inside and outside the box to rotate during the rotation process, thereby controlling the movement of the connecting rod mechanism similar to a parallelogram on both sides of the box, and finally making the simulated target present four postures of standing, kneeling, lying, and concealed in sequence. Compared with the existing single-soldier target posture switching method, the present invention involves a single-soldier simulated target posture conversion mechanism that carries a three-dimensional target. The simulated single-soldier target is in a vertical state when standing and kneeling, in a small angle tilted state when lying, and in a completely lying state when concealed. In form, it is consistent with the actual situation of single-soldier combat, and is closer to the real tactical actions of single soldiers. When observed at any position, it is highly similar to the real target and more realistic. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, and the above and / or other advantages of the present invention will become more clear.

[0040] Figure 1 The present invention is a schematic diagram of a single-soldier simulated target posture transformation mechanism.

[0041] Figure 2 A diagram of the dial.

[0042] Figure 3 Schematic diagram of the groove wheel.

[0043] Figure 4 Schematic diagram of the target stand.

[0044] Figure 5 This is a partial schematic diagram of the target stand.

[0045] Figure 6 This is a schematic diagram of posture switching. DETAILED DESCRIPTION

[0046] Example 1

[0047] like Figure 1 As shown, a single-soldier simulated target posture change mechanism includes a box 1, a servo motor 2, a main shaft 3, a dial 4, a groove wheel 5, a crankshaft 6, and a target frame 7;

[0048] The servo motor 2 is fixedly installed inside the box 1;

[0049] The spindle 3 is mounted on the inner side plate of the box body 1.

[0050] The servo motor 2 and the main shaft 3 are driven by a chain;

[0051] There are two crankshaft shafts 6, which are symmetrically mounted on the inner side panels of the box body 1;

[0052] like Figure 2 As shown, the outer contour of the dial 4 is a crescent-shaped arc, including a concave arc 4-1 and a convex locking arc 4-2. A cylindrical pin 4-3 is provided on the symmetry line of the dial 4, and a dial mounting hole 4-4 is provided at the center of the dial 4;

[0053] like Figure 1 As shown, the dial mounting hole 4-4 of the dial 4 is coaxially fixedly connected to the main shaft 3, and the dial 4 is divided into two groups, one group is placed inside the box 1, and the other group is symmetrically arranged outside the box 1; the symmetry line clamping angle between the dial inside the box and the dial outside the box is 90 degrees.

[0054] like Figure 3 As shown, the groove wheel 5 includes four concave locking arcs 5-1 and four radial grooves 5-2. The concave locking arcs 5-1 and radial grooves 5-2 are evenly distributed along the central circumference of the groove wheel. The groove wheel concave locking arc 5-1 has the same radius as the dial convex locking arc 4-2. The width of the radial groove 5-2 is slightly larger than the diameter of the cylindrical pin 4-3. After the cylindrical pin 4-3 enters 5-2, the two can form a clearance fit. There is a groove wheel mounting hole 5-3 in the center of the groove wheel 5;

[0055] like Figure 1 As shown, the sheave 5 is divided into two groups, each group includes two concave locking arcs 5-1 and two radial grooves 5-2, one group is placed inside the box body 1, the sheave mounting hole 5-3 is coaxial with the crankshaft shaft 6 and fixedly connected, and its concave locking arc 5-1 is tangent to the convex locking arc 4-2 of the dial 4 inside the box body 1; the other group is symmetrically arranged outside the box body 1, the sheave mounting hole 5-3 is coaxial with the crankshaft shaft 6 and can rotate relatively, and its concave locking arc 5-1 is tangent to the convex locking arc 4-2 of the dial 4 outside the box body 1;

[0056] like Figure 4 As shown, the target stand 7 includes a target rod tube 7-1, an upper curved arm 7-2, a lower curved arm 7-3, a rocker arm 7-4, and a connecting rod 7-5. There are two target stands 7, which are arranged on the left and right sides of the box body 1, respectively, to form two groups of symmetrical four-bar mechanisms. The connecting rod 7-5 is used to fix the two groups of four-bar mechanisms.

[0057] The target rod tube 7-1 has a fixed shaft at the inner top and the outer bottom respectively.

[0058] The upper curved arm 7-2 and the lower curved arm 7-3 each have a circular hole at both ends.

[0059] The top of the rocker arm 7-4 is in the shape of a disc, and the bottom has a circular hole. The center of the top disc is coaxial with the sheave mounting hole 5-3 of the outer sheave 5 of the housing 1, and is fixedly connected to the sheave 5;

[0060] One end of the upper crank arm 7-2 is hinged to the top fixed shaft inside the target rod tube 7-1 through a circular hole, and the other end is coaxially and fixedly connected to the crank arm shaft 6 through a circular hole;

[0061] One end of the lower curved arm 7-3 is hinged to the fixed shaft at the bottom outside of the target rod tube 7-1 through a circular hole, and the other end is hinged to the circular hole at the bottom end of the rocker arm 7-4 through a circular hole.

[0062] like Figure 5 As shown, the target rod tube 7-1, the upper curved arm 7-2, the lower curved arm 7-3, and the rocker arm 7-4 form a parallelogram structure.

[0063] The distance AD ​​between the center line of the top fixed shaft inside the target rod barrel 7-1 and the center line of the bottom fixed shaft outside the target rod barrel 7-1 is equal to the distance BC between the axis of the circular hole at the bottom end of the rocker arm 7-4 and the center axis of the top disk;

[0064] The distance AB between the two ends of the circular holes of the upper curved arm 7-2 is equal to the distance CD between the two ends of the circular holes of the lower curved arm 7-3;

[0065] like Figure 5 As shown, the profile of the upper crank arm 7-2 includes a straight line segment and an arc segment. The distance AE between the center of the arc segment and the center of the circular hole at the end of the upper crank arm 7-2 near the target rod barrel 7-1 is equal to the distance BC between the axis of the circular hole at the bottom end of the rocker arm 7-4 and the center axis of the top disk. During the movement, the arc segment of the upper crank arm 7-2 can avoid interference with the connecting rod 7-5.

[0066] The profile of the lower crank arm 7-3 includes a straight line segment and an arc segment. The distance CF between the center of the arc segment and the center of the circular hole at the end of the lower crank arm 7-3 near the rocker arm 7-4 is equal to the distance BC between the axis of the circular hole at the bottom end of the rocker arm 7-4 and the center axis of the top disk. During the movement, the arc segment of the lower crank arm 7-3 can avoid interference with the rocker arm 7-4.

[0067] like Figure 4 As shown, the target rod tube 7-1 is hollow inside, with an open top and a closed bottom;

[0068] The target rod barrel 7-1 is provided with a clamping mechanism 7-6 for fixing the simulated target;

[0069] like Figure 1 As shown, the servo motor 2 and the main shaft 3 are driven by a chain;

[0070] like Figure 1 , Figure 4 As shown, in order to ensure the synchronous and stable movement of the two symmetrical four-bar mechanisms of the target frame 7, each group of the dial 4 and the groove wheel 5 is divided into two groups arranged symmetrically on the left and right;

[0071] like Figure 6As shown, the present invention also provides a single-soldier simulated target posture change method, which uses a single-soldier simulated target posture switching mechanism to achieve the posture switching of the single-soldier simulated target from standing posture to kneeling posture to lying posture, including the following steps:

[0072] Step 1, before the servo motor 2 starts to move, the upper curved arm 7-2 and the rocker arm 7-4 are both in a vertical state. Since the target rod barrel 7-1, the upper curved arm 7-2, the lower curved arm 7-3, and the rocker arm 7-4 form a parallelogram structure, the target rod barrel 7-1 also remains in a vertical state. At this time, the simulated target posture of the single soldier is in a standing state;

[0073] Step 2, the servo motor 2 drives the main shaft 3 to rotate, and the two sets of dials 4 inside and outside the box body 1 rotate synchronously with the main shaft 3. Since the symmetry line of the dial inside the box body 1 and the outer dial is 90 degrees, when the cylindrical pin of the inner dial enters the radial groove of the inner groove wheel, the convex locking arc of the outer dial of the box body 1 and the concave locking arc of the outer groove wheel are in a tangent state, and the movement of the outer groove wheel is locked. At this time, the rocker arm 7-4 remains in a vertical state;

[0074] Step 3, the servo motor 2 drives the main shaft 3 to continue to rotate, and the internal dial cylindrical pin drives the internal groove wheel to rotate. Since the internal groove wheel is coaxial with the crank arm shaft 6 and fixedly connected, it will drive the crank arm shaft 6 to rotate. Because one end of the upper crank arm 7-2 is coaxial with the crank arm shaft and fixedly connected through a circular hole, the upper crank arm 7-2 will rotate synchronously. At this time, the convex locking arc of the dial on the outside of the box body 1 and the concave locking arc of the external groove wheel are still in a tangent state, so the rocker arm 7-4 continues to maintain a vertical state. Since the target rod barrel 7-1, the upper crank arm 7-2, the lower crank arm 7-3, and the rocker arm 7-4 form a parallelogram structure, the target rod barrel 7-1 will remain vertical and lower its height. When the upper crank arm 7-2 rotates to a horizontal state, the simulated target posture of the single soldier is in a kneeling state;

[0075] Step 4, the servo motor 2 drives the main shaft 3 to continue to rotate, at this time, the cylindrical pin of the dial inside the box body 1 begins to leave the radial groove of the inner groove wheel, and the cylindrical pin of the dial outside the box body 1 begins to enter the radial groove of the outer groove wheel. At this time, the convex locking arc of the dial inside the box body 1 and the concave locking arc of the inner groove wheel are in a tangent state, and the movement of the inner groove wheel is locked, so the upper crank arm 7-2 remains in a horizontal state.

[0076] Step 5, the servo motor 2 drives the main shaft 3 to continue to rotate, and the external dial of the box body 1 starts to drive the external groove wheel to rotate. Since the center of the top disk of the rocker arm 7-4 is coaxial with the center of the external groove wheel of the box body 1 and is fixedly connected to the groove wheel, the rocker arm 7-4 rotates with the external groove wheel. Since the target rod barrel 7-1, the upper curved arm 7-2, the lower curved arm 7-3, and the rocker arm 7-4 form a parallelogram structure, the target rod barrel 7-1 will rotate synchronously. When the rocker arm 7-4 forms a small angle with the horizontal plane (for example, 3 to 5 degrees), the servo motor 2 is controlled to stop rotating. At this time, the angle between the target rod barrel 7-1 and the horizontal plane is also the same small angle (3 to 5 degrees), and the simulated target posture of the single soldier is in a prone state.

[0077] Step 6, the servo motor 2 drives the main shaft 3 to continue rotating. When the rocker arm 7-4 rotates to a horizontal state, the target rod barrel 7-1 also becomes a horizontal state. At this time, the single soldier simulated target posture is in a concealed state.

[0078] The present invention provides a single-soldier simulated target posture transformation mechanism and method. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A single-soldier simulated target posture transformation mechanism, characterized in that: It comprises a box body (1), a servo motor (2), a main shaft (3), a dial (4), a groove wheel (5), a crankshaft (6), and a target frame (7); The servo motor (2) is fixedly installed inside the box (1); The main shaft (3) is mounted on the inner side plate of the box body (1); The servo motor (2) and the main shaft (3) are driven by a chain; There are two crankshaft shafts (6), which are symmetrically mounted on the inner side panels of the box body (1); The outer contour of the dial (4) is a crescent-shaped arc, including a concave arc (4-1) and a convex locking arc (4-2); a cylindrical pin (4-3) is provided on the symmetry line of the dial (4); and a dial mounting hole (4-4) is provided at the center of the dial (4); The dial mounting hole (4-4) is coaxially fixedly connected to the main shaft (3); The dials (4) are divided into two groups, one group is placed inside the box (1), and the other group is symmetrically arranged outside the box (1); the angle between the symmetry lines of the dials inside the box and the dials outside the box is 90 degrees; The groove wheel (5) comprises four concave locking arcs (5-1) and four radial grooves (5-2), the concave locking arcs (5-1) and the radial grooves (5-2) are evenly distributed along the central circumference of the groove wheel, the concave locking arc (5-1) and the convex locking arc (4-2) have the same radius, the width of the radial groove (5-2) is slightly larger than the diameter of the cylindrical pin (4-3), and a groove wheel mounting hole (5-3) is provided at the center of the groove wheel (5); The groove wheel (5) is divided into two groups, each group comprising two concave locking arcs (5-1) and two radial grooves (5-2), one group is arranged inside the housing (1), the groove wheel mounting hole (5-3) is coaxial with the crank arm shaft (6) and fixedly connected, and the concave locking arc (5-1) is tangent to the convex locking arc (4-2) of the dial (4) inside the housing (1); the other group is symmetrically arranged outside the housing (1), the groove wheel mounting hole (5-3) is coaxial with the crank arm shaft (6) and can rotate relatively, and the concave locking arc (5-1) is tangent to the convex locking arc (4-2) of the dial (4) outside the housing (1).

2. The single-soldier simulated target posture transformation mechanism according to claim 1, characterized in that: The target stand (7) comprises a target rod tube (7-1), an upper curved arm (7-2), a lower curved arm (7-3), a rocker arm (7-4), and a connecting rod (7-5). There are two target stands (7), which are arranged on the left and right sides of the box body (1) respectively to form two groups of symmetrical four-bar mechanisms. The connecting rod (7-5) is used to fix the two groups of four-bar mechanisms.

3. The single-soldier simulated target posture transformation mechanism according to claim 2, characterized in that: The target rod tube (7-1) has a fixed shaft at the inner top and the outer bottom respectively.

4. The single-soldier simulated target posture transformation mechanism according to claim 3, characterized in that: The upper curved arm (7-2) and the lower curved arm (7-3) each have a circular hole at both ends.

5. The single-soldier simulated target posture transformation mechanism according to claim 4, characterized in that: The top end of the rocker arm (7-4) is in the shape of a disc and the bottom end has a circular hole. The center of the top disc is coaxial with the groove wheel mounting hole (5-3) of the outer groove wheel (5) of the box body (1) and is fixedly connected to the groove wheel (5).

6. The single-soldier simulated target posture transformation mechanism according to claim 5, characterized in that: One end of the upper crank arm (7-2) is hinged to the top fixed shaft inside the target rod tube (7-1) through a circular hole, and the other end is coaxially and fixedly connected to the crank arm shaft (6) through a circular hole.

7. The single-soldier simulated target posture transformation mechanism according to claim 6, characterized in that: One end of the lower curved arm (7-3) is hinged to the fixed shaft at the bottom outside the target rod tube (7-1) through a circular hole, and the other end is hinged to the circular hole at the bottom end of the rocker arm (7-4) through a circular hole.

8. The single-soldier simulated target posture transformation mechanism according to claim 7, characterized in that: The target rod barrel (7-1), the upper curved arm (7-2), the lower curved arm (7-3) and the rocker arm (7-4) form a parallelogram structure; The distance between the center line of the top fixed shaft inside the target rod barrel (7-1) and the center line of the bottom fixed shaft outside the target rod barrel (7-1) is equal to the distance between the axis of the circular hole at the bottom end of the rocker arm (7-4) and the center axis of the top disk; The distance between the axes of the circular holes at both ends of the upper curved arm (7-2) is equal to the distance between the axes of the circular holes at both ends of the lower curved arm (7-3); The profile of the upper curved arm (7-2) includes a straight line segment and an arc segment, and the distance between the center of the arc segment and the center of the circular hole at the end of the upper curved arm (7-2) near the target rod barrel (7-1) is equal to the distance between the axis of the circular hole at the bottom end of the rocker arm (7-4) and the center axis of the top disk. During the movement, the arc segment of the upper curved arm (7-2) can avoid interference with the connecting rod (7-5); The profile of the lower crank arm (7-3) includes a straight line segment and an arc segment, and the distance between the center of the arc segment and the center of the circular hole at the end of the lower crank arm (7-3) close to the rocker arm (7-4) is equal to the distance BC between the axis of the circular hole at the bottom end of the rocker arm (7-4) and the center axis of the top disk. During the movement, the arc segment of the lower crank arm (7-3) can avoid interference with the rocker arm (7-4); The target rod tube (7-1) has a hollow structure inside, an open top and a closed bottom; A clamping mechanism (7-6) is installed on the target rod barrel (7-1) for fixing the simulated target.

9. The single-soldier simulated target posture transformation mechanism according to claim 8, characterized in that: The transmission mode between the servo motor (3) and the main shaft (3) includes coaxial transmission of a reducer, gear transmission, chain transmission, and synchronous belt rotation.

10. A method for changing the posture of a single-soldier simulated target, characterized in that: Using the single-soldier simulated target posture transformation mechanism to realize the posture switching of the single-soldier simulated target among the standing posture, kneeling posture and lying posture comprises the following steps: Step 1, before the servo motor (2) starts to move, the upper curved arm (7-2) and the rocker arm (7-4) are both in a vertical state. Since the target rod barrel (7-1), the upper curved arm (7-2), the lower curved arm (7-3) and the rocker arm (7-4) form a parallelogram structure, the target rod barrel (7-1) also remains in a vertical state. At this time, the simulated target posture of the single soldier is in a standing state; Step 2, the servo motor (2) drives the main shaft (3) to rotate, and the two sets of dials (4) inside and outside the housing (1) rotate synchronously with the main shaft (3). Since the symmetry line of the dial inside the housing (1) and the dial outside the housing (1) is 90 degrees, when the cylindrical pin (4-3) of the internal dial enters the radial groove of the internal groove wheel, the convex locking arc (4-2) of the external dial (4) of the housing (1) and the concave locking arc (5-1) of the external groove wheel are in a tangent state, and the movement of the external groove wheel is locked. At this time, the rocker arm (7-4) remains in a vertical state; Step 3, the servo motor (2) drives the main shaft (3) to continue rotating, and the cylindrical pin (4-3) of the internal dial (4) drives the internal groove wheel to rotate. Since the internal groove wheel is coaxial with the crank arm shaft (6) and fixedly connected, it will drive the crank arm shaft (6) to rotate; and because one end of the upper crank arm (7-2) is coaxial with the crank arm shaft (6) and fixedly connected through the circular hole, the upper crank arm (7-2) will rotate synchronously. At this time, the convex locking arc (4-2) of the external dial (4) of the box body and the concave locking arc (5-1) of the external groove wheel are still in a tangent state, so the rocker arm (7-4) continues to maintain a vertical state; since the target rod barrel (7-1), the upper crank arm (7-2), the lower crank arm (7-3), and the rocker arm (7-4) form a parallelogram structure, the target rod barrel (7-1) will maintain a vertical state and reduce its height; when the upper crank arm (7-2) rotates to a horizontal state, the simulated target posture of the single soldier is a kneeling state; Step 4, the servo motor (2) drives the main shaft (3) to continue rotating, at which time the cylindrical pin (4-3) of the inner dial (4) of the housing (1) begins to leave the radial groove (5-2) of the inner groove wheel, and the cylindrical pin (4-3) of the outer dial (4) of the housing (1) begins to enter the radial groove (5-2) of the outer groove wheel. At this time, the convex locking arc (4-2) of the inner dial of the housing (1) and the concave locking arc (5-1) of the inner groove wheel are in a tangent state, and the movement of the inner groove wheel is locked, so the upper crank arm (7-2) remains in a horizontal state; Step 5, the servo motor (2) drives the main shaft (3) to continue rotating, and at this time, the external dial of the box body (1) starts to drive the external groove wheel to rotate. Since the center of the top disk of the rocker arm (7-4) is coaxial with the center of the external groove wheel of the box body and is fixedly connected to the groove wheel, the rocker arm (7-4) rotates with the external groove wheel; since the target rod barrel (7-1), the upper curved arm (7-2), the lower curved arm (7-3), and the rocker arm (7-4) form a parallelogram structure, the target rod barrel (7-1) will rotate synchronously; when the rocker arm (7-4) forms a small angle with the horizontal plane, the servo motor (2) is controlled to stop rotating, and at this time, the angle between the target rod barrel (7-1) and the horizontal plane also forms the same small angle, and the simulated target posture of the single soldier is in a prone state; Step 6, the servo motor (2) drives the main shaft (3) to continue rotating, and when the rocker arm (7-4) rotates to a horizontal state, the target rod barrel (7-1) also becomes a horizontal state. At this time, the simulated target posture of the single soldier is in a concealed state.

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