A shield rapid deployment mechanism

Abstract

The invention discloses a shield rapid deployment and retraction mechanism, comprising a shield rotation mechanism, a shield flipping mechanism and a shield translation mechanism; the shield rotation mechanism is mounted on a chassis, the shield flipping mechanism is mounted on the shield rotation mechanism, and the shield translation mechanism is mounted on the shield flipping mechanism; the shield rotation mechanism comprises a rotation frame, and the rotation frame can rotate relative to the chassis; the shield flipping mechanism comprises a flipping frame and a flipping electric push rod; the shield translation mechanism comprises an upper shield and an upper shield buffer frame; the upper shield and the upper shield buffer frame can rotate relative to the flipping frame. The shield rapid deployment and retraction mechanism designed by the invention has a simple structure, a high degree of automation, and can quickly realize the automatic deployment and retraction of the shield. After deployment and retraction, space can be saved, and three actions of rotation, flipping and translation can be performed simultaneously. The action is rapid and accurate, manpower is reduced, reliability is high, and the safety of personnel in dangerous environments is improved. It can be widely used in urban anti-terrorism, security protection, training exercises and other occasions.

Description

Technical Field

[0001] The invention belongs to the technical field of armored equipment, and in particular relates to a shield rapid deployment and retraction mechanism. Background Art

[0002] Folding bulletproof shields can have a large protection area when in use and a small size when carried. They have been widely used in the military and police fields in recent years. However, existing folding shields are fixed structures that cannot be automatically unfolded and retracted. During combat, they need to be unfolded and retracted manually, which increases the exposure time of combatants. Especially for large shields, due to the heavy weight of the shield body, combatants must keep their hands away from weapons during operation, making it difficult to quickly deal with special situations. Therefore, how to achieve automatic folding and unfolding of folding shields has become a problem that needs to be solved in this field. Summary of the invention

[0003] The present invention proposes a shield rapid deployment and retraction mechanism, comprising: a shield rotation mechanism, a shield flipping mechanism and a shield translation mechanism;

[0004] The shield rotating mechanism is installed on the chassis, the shield flipping mechanism is installed on the shield rotating mechanism, and the shield translation mechanism is installed on the shield flipping mechanism;

[0005] The shield rotating mechanism comprises a rotating frame, and the rotating frame can rotate relative to the chassis;

[0006] The shield flipping mechanism comprises a flipping frame and a flipping electric push rod; the flipping frame, the rotating frame and the flipping electric push rod form a triangle structure in which two are hinged; the flipping electric push rod can push the flipping frame to rotate around the hinge between the flipping frame and the rotating frame;

[0007] The shield translation mechanism comprises an upper shield and an upper shield buffer frame, a translation slewing bearing, a translation driving mechanism, a lower shield and a lower shield buffer frame; the lower shield is mounted on the lower end of the outer side of the flip frame through the lower shield buffer frame, the upper shield is mounted on the first side of the translation slewing bearing through the upper shield buffer frame, the second side of the translation slewing bearing is mounted on the upper end of the flip frame, the upper shield and the upper shield buffer frame can rotate relative to the flip frame; the translation driving mechanism is arranged on the inner side of the flip frame, and the translation driving mechanism drives the upper shield and the upper shield buffer frame to rotate.

[0008] Furthermore, the shield flipping mechanism further includes a first flipping hinge axis, a second flipping hinge axis and a third flipping hinge axis;

[0009] The flip frame and the rotating frame are movably hinged via a second flip hinge axis;

[0010] The first end of the flip electric push rod is hinged to the inner side of the flip frame through the first flip hinge shaft, and the first end of the flip electric push rod is hinged to the rotating frame through the third flip hinge shaft.

[0011] Furthermore, the shield rotating mechanism also includes a rotating slewing bearing,

[0012] The lower part of the rotating slewing bearing is installed on the chassis, and the rotating frame is arranged on the upper part of the rotating slewing bearing.

[0013] Furthermore, the translation drive mechanism comprises a translation drive shaft, a translation reduction motor and a transition plate;

[0014] The transition plate is fixedly connected to the flip frame, the transition plate is provided with a through hole, a supporting shaft sleeve is provided in the through hole, and the supporting shaft sleeve can rotate in the through hole; the translation drive shaft passes through the supporting shaft sleeve and is connected to the supporting shaft sleeve;

[0015] The flat-rotation reduction motor is arranged inside the flip frame.

[0016] The output end of the pan-rotation reduction motor is fixedly connected to the first end of the pan-rotation drive shaft, the pan-rotation drive shaft passes through the flip frame, and the second end of the pan-rotation drive shaft is fixed to the upper shield buffer frame;

[0017] The translation reduction motor can drive the upper shield and the upper shield buffer frame to rotate through the translation drive shaft.

[0018] Furthermore, the flat-rotating reduction motor is provided with a first self-locking mechanism.

[0019] The first self-locking mechanism can lock the translational reduction motor;

[0020] When the first self-locking mechanism is locked, the translation reduction motor cannot drive the upper shield and the upper shield buffer frame to rotate through the translation drive shaft.

[0021] Furthermore, the translational reduction motor is of a worm gear type.

[0022] Furthermore, a second self-locking mechanism is provided in the flip electric push rod.

[0023] When the second self-locking mechanism is locked, the flip electric push rod cannot be extended or shortened.

[0024] Furthermore, the flip electric push rod contains a screw structure.

[0025] Furthermore, the chassis is a wheeled or tracked load-bearing platform.

[0026] Furthermore, a detection component is provided on the side of the chassis;

[0027] The upper shield is provided with an observation window.

[0028] The shield rapid deployment and retraction mechanism designed by the present invention has a simple structure, a high degree of automation, and high reliability. It can simultaneously perform three actions of rotation, flipping, and translation, and the actions are rapid and accurate. The shield rotation mechanism adopts a slewing bearing with a large bearing capacity. It can be driven to rotate by a motor and cooperate with a conductive slip ring, which is not restricted by cables, and can achieve continuous and infinite 360° continuous adjustable rotation.

[0029] The shield flipping mechanism of the present invention adopts a hinge structure and is driven by an electric push rod. It can be adjusted with the feedback of a potentiometer. The shield has a pitch function, and the center of gravity of the whole vehicle is stable. It has the ability to protect while accompanying combatants climbing stairs or gentle slopes. The shield rotation mechanism adopts a slewing bearing and cooperates with a reduction motor to achieve two-stage folding and unfolding in a plane rotation manner. The driving structure can increase protection and strengthen. The unfolding and folding speed is fast, and it is decomposed into two independent actions of horizontal rotation and flipping, which can be performed simultaneously to improve the efficiency of the action.

[0030] The shield rapid deployment and retraction mechanism of the present invention saves space, has strong concealment, has a large freedom of shield movement, and can fold the shield to a minimum volume, thereby improving the overall passability of the shield mechanism.

[0031] The shield quick deployment and retraction mechanism of the present invention has no structural parts exposed outside the shield bullet-facing surface, and the shield is equipped with a buffer frame to avoid being damaged by live bullets; the structural parts have a buffer frame to isolate the local destructive force and impact force of live bullets, which is not easy to be damaged, effectively reducing the impact on the overall mechanism, and has strong reliability. The shield is easy to replace, and the shield itself does not participate in the action as a structural part, and can be disassembled or replaced at any time. After being damaged by bullets, the shield can be replaced to ensure continuous operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the structure of a shield rapid deployment and retraction mechanism according to an embodiment of the present invention is shown;

[0033] Figure 2 A schematic diagram of the structure of a shield rapid deployment and retraction mechanism according to an embodiment of the present invention when retracted is shown;

[0034] Figure 3 A structural diagram showing an upper shield and a lower shield overlapping and retracting each other in a shield rapid deployment and retraction mechanism according to an embodiment of the present invention is shown;

[0035] Figure 4 A structural diagram showing the mutually unfolding posture of an upper shield and a lower shield of a shield rapid unfolding and retracting mechanism according to an embodiment of the present invention is shown;

[0036] Figure 5 A partial structural schematic diagram of a shield rapid deployment and retraction mechanism according to an embodiment of the present invention is shown.

[0037] In the figure: 1. upper shield; 2. upper shield buffer frame; 3. pan-rotating slewing bearing; 4. pan-rotating drive shaft; 5. pan-rotating reduction motor; 6. flip frame; 7. lower shield; 8. lower shield buffer frame; 9. first flip articulated shaft; 10. flip electric push rod; 11. second flip articulated shaft; 12. rotating frame; 13. third flip articulated shaft; 14. rotating slewing bearing; 15. transition plate; 16. chassis. DETAILED DESCRIPTION

[0038] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0039] The present invention provides a shield rapid deployment mechanism, such as Figure 1 As shown, when folded, Figure 2 As shown, after folding, it saves space and has strong concealment. The total height including the vehicle body in the fully folded state is about 640mm. The shield has a large degree of freedom of movement and can be folded to the smallest possible volume, thereby improving the overall passability of the shield mechanism.

[0040] The invention discloses a shield rapid unfolding and retracting mechanism, which comprises a shield rotating mechanism, a shield flipping mechanism and a shield horizontal rotating mechanism.

[0041] The shield rotating mechanism is arranged on the chassis 16 , the shield flipping mechanism is installed on the shield rotating mechanism, and the shield translation mechanism is installed on the shield flipping mechanism.

[0042] The shield rapid unfolding and retracting mechanism designed by the present invention can simultaneously perform three actions of rotation, flipping and translation, and the actions are fast and accurate. The shield rotating mechanism includes a rotating frame 12, and the rotating frame 12 can rotate freely relative to the chassis 16, so that the shield rotating mechanism can perform a "rotation" action relative to the chassis 16. The shield flipping mechanism includes a flipping frame 6 and a flipping electric push rod 10; the flipping frame 6, the rotating frame 12 and the flipping electric push rod 10 form a triangular structure hinged in pairs; the flipping electric push rod 10 can push the flipping frame 6 to rotate around the hinge between the flipping frame 6 and the rotating frame 12, so that the shield flipping mechanism can perform a "flipping" action relative to the shield rotating mechanism. The shield translation mechanism includes an upper shield assembly and a lower shield assembly; the lower shield assembly is installed at the lower end of the outer side of the flipping frame 6, and the upper shield assembly is installed at the upper end of the outer side of the flipping frame 6; the upper shield assembly can freely translate relative to the flipping frame 6, so that the upper shield assembly can perform a "translation" action relative to the shield flipping mechanism.

[0043] The shield rotating mechanism further includes a rotating slewing bearing 14 . The lower portion of the rotating slewing bearing 14 is mounted on a chassis 16 . The rotating frame 12 is disposed on the upper portion of the rotating slewing bearing 14 .

[0044] The shield rapid deployment and retraction mechanism also includes a controller, which is arranged inside the shield rapid deployment and retraction mechanism and can be a chip, a circuit board, an electrical control system, etc. The controller is connected to the motor, the flat-rotating reduction motor 5, the electric push rod 10, the detection component and other circuits.

[0045] Preferably, the rotating slewing bearing 14 of the shield rotating mechanism has a large bearing capacity and can be driven to rotate by a motor controlled by a controller. The motor is powered by a conductive slip ring and is not restricted by cables, so that continuous and infinite 360° continuous and adjustable rotation can be achieved.

[0046] The shield flipping mechanism also includes a first flipping hinge shaft 9, a second flipping hinge shaft 11 and a third flipping hinge shaft 13; the flipping frame 6 and the rotating frame 12 are movably hinged through the second flipping hinge shaft 11; the first end of the flipping electric push rod 10 is hinged to the inner side of the flipping frame 6 through the first flipping hinge shaft 9, and the first end of the flipping electric push rod 10 is hinged to the rotating frame 12 through the third flipping hinge shaft 13. The flipping frame 6, the rotating frame 12 and the flipping electric push rod 10 form a triangle structure hinged in pairs, so that the controller controls the extension and contraction of the flipping electric push rod 10 to achieve the angle adjustment of the flipping frame 6 and the rotating frame 12. Among them, a second self-locking mechanism is provided in the flipping electric push rod 10. When the second self-locking mechanism is locked, the flipping electric push rod 10 cannot be extended or shortened. When the length of the flipping electric push rod 10 is fixed, due to the stability of the triangle, the shield flipping mechanism cannot flip, and the shield rapid expansion and retraction mechanism can still maintain the original shield state after the shield is stressed, protecting the safety of the personnel and equipment behind. The flip electric push rod 10 contains a screw structure, and a screw is used inside the flip electric push rod 10 to achieve the extension and retraction of the flip electric push rod 10. There are many designs of the screw in the flip electric push rod 10, such as similar to CN207588631U, CN207039367U, etc. In one design, a motor, a planetary reduction gear set and a screw are arranged inside the flip electric push rod 10; the motor power output shaft is meshed with the sun gear in the planetary reduction gear set, and the planetary gear in the planetary reduction gear set is meshed with the screw, and the screw is used to drive the flip electric push rod 10 to extend and retract. The screw structure can achieve mechanical self-locking, which has high safety and reduces the danger brought by the structure itself.

[0047] The shield flipping mechanism of the present invention adopts a hinge structure and is driven by a flipping electric push rod. It can cooperate with potentiometer feedback to achieve arbitrary adjustment of 0-120°. The shield can be tilted forward by a maximum of 30°. The shield has a pitch function, and the center of gravity of the whole vehicle is stable. It has the ability to protect combatants while climbing stairs or gentle slopes. When it is flipped up to 120°, it can meet the requirements of standing the shield uphill.

[0048] The shield translation mechanism further comprises a translation slewing bearing 3 ; the upper shield assembly comprises an upper shield 1 and an upper shield buffer frame 2 ; the lower shield assembly comprises a lower shield 7 and a lower shield buffer frame 8 .

[0049] The lower shield 7 is installed on the lower end of the outer side of the flip frame 6 through the lower shield buffer frame 8, the upper shield 1 is installed on the first side of the translation swivel bearing 3 through the upper shield buffer frame 2, and the second side of the translation swivel bearing 3 is installed on the upper end of the flip frame 6, and the upper shield 1 and the upper shield buffer frame 2 can rotate freely relative to the flip frame 6.

[0050] The shield translation mechanism also includes a translation driving mechanism; the translation driving mechanism is arranged inside the flip frame 6, and the translation driving mechanism drives the upper shield 1 and the upper shield buffer frame 2 to rotate. Thus, the upper shield 1 and the lower shield 7 can be mutually unfolded and overlapped. Figure 3 As shown, they expand mutually as Figure 4 shown.

[0051] The translation drive mechanism comprises a translation drive shaft 4, a translation reduction motor 5 and a transition plate 15; Figure 5 As shown, the transition plate 15 is fixedly connected to the flip frame 6, and the transition plate 15 is provided with a through hole, in which a supporting shaft sleeve is provided, and the supporting shaft sleeve can rotate in the through hole; the pan-rotation drive shaft 4 passes through the supporting shaft sleeve and is connected with the supporting shaft sleeve; the pan-rotation reduction motor 5 is arranged on the inner side of the flip frame 6, and the output end of the pan-rotation reduction motor 5 is fixedly connected to the first end of the pan-rotation drive shaft 4, the pan-rotation drive shaft 4 passes through the flip frame 6, and the second end of the pan-rotation drive shaft 4 is fixed to the upper shield buffer frame 2; the pan-rotation reduction motor 5 can drive the upper shield 1 and the upper shield buffer frame 2 to rotate through the pan-rotation drive shaft 4, thereby realizing two postures of mutual expansion and overlapping and retracting with the lower shield 7.

[0052] The pan-rotating reduction motor 5 is provided with a first self-locking mechanism, which can lock the pan-rotating reduction motor 5; when the first self-locking mechanism is locked, the pan-rotating reduction motor 5 cannot drive the upper shield 1 and the upper shield buffer frame 2 to rotate through the pan-rotating drive shaft 4. The pan-rotating reduction motor 5 is a worm gear type, such as a worm gear reducer, which can achieve mechanical self-locking, and the mechanical self-locking has high safety and reduces the danger brought by the structure itself.

[0053] The shield's horizontal rotation mechanism uses a slewing bearing and a horizontal rotation reduction motor to achieve two-stage folding and unfolding in a planar rotation manner. The drive structure can increase protection and strengthen. The flip electric push rod 10 and the horizontal rotation reduction motor 5 are controlled by a controller, with a high degree of automation. The unfolding and folding speed is fast, and it is decomposed into two independent actions of horizontal rotation and flipping, which can be performed simultaneously to improve the efficiency of the action.

[0054] The shield quick deployment and retraction mechanism designed by the present invention has no structural parts exposed outside the shield bullet-facing surface. The shield is provided with a buffer frame. The upper shield buffer frame 2 and the lower shield buffer frame 8 have a buffering function to avoid being damaged by live bullets. The structural parts have a buffer frame to isolate the local destructive force and impact force of live bullets, which is not easy to be damaged, effectively reducing the impact on the overall mechanism, and having strong reliability. The shield is easy to replace. The shield itself does not participate in the action as a structural part and can be disassembled or replaced at any time. After being damaged by bullets, the shield can be replaced to ensure continuous operation.

[0055] Furthermore, the pan-rotating slewing bearing 3 can move and lock along the pan-rotating drive shaft 4. When the upper shield 1 and the upper shield buffer frame 2 pan-rotate 180 degrees, the pan-rotating slewing bearing 3 drives the upper shield 1 and the upper shield buffer frame 2 to move toward the pan-rotating drive shaft 4, so that the bullet-facing surface of the upper shield 1 and the bullet-facing surface of the lower shield 7 are in the same plane, and the combination forms a complete shield, making it stronger.

[0056] The chassis 16 is a wheeled or tracked load-bearing platform. The upper shield 1 is provided with an observation window. A detection component is arranged on the side of the chassis 16; the detection component is connected to the controller circuit for easy control and detection. Preferably, the detection component is composed of one or more of a camera, an infrared camera, a radar, etc.

[0057] The shield rapid deployment and retraction mechanism further comprises a power supply assembly and / or a battery assembly, and the power supply assembly and / or the battery assembly are used to supply power to the shield rapid deployment and retraction mechanism.

[0058] The shield rapid deployment and retraction mechanism also includes a wireless device. The information detected by the detection component is transmitted to the operator through the controller and finally through the wireless device.

[0059] The shield rapid deployment and retraction mechanism also includes a wireless control device, and an operator can control the shield rapid deployment and retraction mechanism to deploy and retract through the wireless control device to achieve rotation, flipping and translation actions.

[0060] The shield rapid deployment and retraction mechanism designed by the present invention has a simple structure and a high degree of automation. It can quickly realize the automatic deployment and retraction of the shield, save space after deployment and retraction, and can simultaneously perform three actions of rotation, flipping and translation. The actions are rapid and accurate, manpower is reduced, reliability is high, and the safety of personnel in dangerous environments is improved. The shield can be widely used in urban anti-terrorism, security protection, training exercises and other occasions.

[0061] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A shield rapid deployment and retraction mechanism, characterized in that: It includes a shield rotating mechanism, a shield flipping mechanism and a shield horizontal rotating mechanism; The shield rotating mechanism is mounted on the chassis (16), the shield flipping mechanism is mounted on the shield rotating mechanism, and the shield translation mechanism is mounted on the shield flipping mechanism; The shield rotating mechanism comprises a rotating frame (12), and the rotating frame (12) is capable of rotating relative to a chassis (16); The shield flipping mechanism comprises a flipping frame (6) and a flipping electric push rod (10); the flipping frame (6), the rotating frame (12) and the flipping electric push rod (10) form a triangular structure in which two are hinged; the flipping electric push rod (10) can push the flipping frame (6) to rotate around the hinge between the flipping frame (6) and the rotating frame (12); The shield translation mechanism comprises an upper shield (1) and an upper shield buffer frame (2), a translation slewing bearing (3), a translation driving mechanism, a lower shield (7) and a lower shield buffer frame (8); the lower shield (7) is mounted on the lower end of the outer side of the flip frame (6) through the lower shield buffer frame (8); the upper shield (1) is mounted on the first side of the translation slewing bearing (3) through the upper shield buffer frame (2); the second side of the translation slewing bearing (3) is mounted on the upper end of the flip frame (6); the upper shield (1) and the upper shield buffer frame (2) are rotatable relative to the flip frame (6); the translation driving mechanism is arranged on the inner side of the flip frame (6); the translation driving mechanism drives the upper shield (1) and the upper shield buffer frame (2) to rotate; The shield flipping mechanism further comprises a first flipping hinge shaft (9), a second flipping hinge shaft (11) and a third flipping hinge shaft (13); The flip frame (6) and the rotating frame (12) are movably hinged via a second flip hinge shaft (11); The first end of the flip electric push rod (10) is hinged to the inner side of the flip frame (6) via the first flip hinge shaft (9), and the first end of the flip electric push rod (10) is hinged to the rotating frame (12) via a third flip hinge shaft (13); The shield rotating mechanism further comprises a rotary slewing bearing (14), The lower part of the rotating slewing bearing (14) is installed on the chassis (16), and the rotating frame (12) is arranged on the upper part of the rotating slewing bearing (14); The translation drive mechanism comprises a translation drive shaft (4), a translation reduction motor (5) and a transition plate (15); The transition plate (15) is fixedly connected to the flip frame (6); the transition plate (15) is provided with a through hole, a supporting shaft sleeve is provided in the through hole, and the supporting shaft sleeve can rotate in the through hole; the translation drive shaft (4) passes through the supporting shaft sleeve and is connected to the supporting shaft sleeve; The flat-rotation reduction motor (5) is arranged inside the flip frame (6). The output end of the pan-rotating reduction motor (5) is fixedly connected to the first end of the pan-rotating drive shaft (4); the pan-rotating drive shaft (4) passes through the flip frame (6); and the second end of the pan-rotating drive shaft (4) is fixed to the upper shield buffer frame (2); The translation reduction motor (5) can drive the upper shield (1) and the upper shield buffer frame (2) to rotate via the translation drive shaft (4).

2. The shield rapid deployment and retraction mechanism according to claim 1, characterized in that: The flat-rotating reduction motor (5) is provided with a first self-locking mechanism. The first self-locking mechanism is capable of locking the translational reduction motor (5); When the first self-locking mechanism is locked, the translation reduction motor (5) cannot drive the upper shield (1) and the upper shield buffer frame (2) to rotate via the translation drive shaft (4).

3. The shield rapid deployment and retraction mechanism according to claim 2, characterized in that: The flat-rotating reduction motor (5) is of a worm gear type.

4. The shield rapid deployment and retraction mechanism according to claim 1, characterized in that: The flip electric push rod (10) is provided with a second self-locking mechanism. When the second self-locking mechanism is locked, the flip electric push rod (10) cannot be extended or shortened.

5. The shield rapid deployment and retraction mechanism according to claim 4, characterized in that: The flip electric push rod (10) contains a screw structure.

6. The shield rapid deployment and retraction mechanism according to claim 1, characterized in that: The chassis (16) is a wheeled or tracked load-bearing platform.

7. The shield rapid deployment and retraction mechanism according to claim 1, characterized in that: A detection component is arranged on the side of the chassis (16); The upper shield (1) is provided with an observation window.

Images