Shock absorbing vehicle mounted security system

Abstract

The application discloses a shock-absorbing vehicle-mounted security inspection system, which comprises a vehicle body, a vehicle cabin, a security inspection device and a shock-absorbing mechanism. The vehicle body comprises a chassis; the vehicle cabin is located above the chassis; the security inspection device is loaded in the vehicle cabin to transmit and detect measured objects; and the shock-absorbing mechanism is installed between the chassis and the bottom plate of the vehicle cabin to make the vehicle cabin elastically suspended above the chassis, so as to weaken the vibration impact force suffered by the vehicle cabin and the security inspection device. The shock-absorbing mechanism can weaken the vibration impact force suffered by the vehicle cabin and the security inspection device, and improve the protection of the security inspection device.

Description

Technical Field

[0001] At least one embodiment of the present invention relates to a vehicle-mounted security inspection system, and more particularly to a shock-absorbing vehicle-mounted security inspection system carrying security inspection equipment. Background Technology

[0002] To ensure public safety, security screening equipment is commonly used at the entrances of public places such as subway stations, train stations, airports, stadiums, and shopping malls to inspect passengers and their luggage. Generally, equipment such as X-ray inspection devices installed on vehicles are used to check for prohibited items such as drugs and explosives. The target to be inspected typically passes through the inspection space of the X-ray inspection equipment via a conveyor structure, and the X-ray emitting device emits X-rays into the X-ray channel to inspect the target.

[0003] For outdoor applications such as sporting events, drug enforcement stations, and frontline counter-terrorism operations, where security equipment needs to be replaced for different locations, vehicle-mounted security inspection systems, such as those using X-ray scanners, have been proposed. However, in existing vehicle-mounted security inspection systems, the X-ray equipment is installed on the vehicle. Due to the bumpy ride, the equipment is subjected to continuous vibration and impact during vehicle operation, causing varying degrees of damage to its components. Summary of the Invention

[0004] To address the existing technical problems, this invention provides a shock-absorbing vehicle-mounted security inspection system, which at least partially solves the above-mentioned technical problems. By setting up a shock-absorbing mechanism, it can reduce the vibration and impact force on the vehicle compartment and security inspection equipment, thereby improving the protection of the security inspection equipment.

[0005] This invention provides a shock-absorbing vehicle-mounted security inspection system, comprising:

[0006] The vehicle body, including the chassis;

[0007] The carriage is located above the chassis.

[0008] Security inspection equipment, installed inside the carriage, is used to transmit and inspect items.

[0009] A shock-absorbing mechanism is installed between the chassis and the floor of the carriage, allowing the carriage to be elastically suspended above the chassis, thereby reducing the vibration and impact force on the carriage and the security inspection equipment.

[0010] According to an embodiment of this disclosure, the shock absorption mechanism includes a plurality of springs, all of which are arranged with their axial directions parallel to the horizontal plane.

[0011] According to an embodiment of this disclosure, the chassis and the bottom plate of the carriage are respectively provided with a first receiving groove and a second receiving groove at the parts opposite to the spring. The cross-sections of the first receiving groove and the second receiving groove are both formed in an arc shape to accommodate the lower part and the upper part of the spring, respectively.

[0012] According to embodiments of this disclosure, the shock absorption mechanism further includes a mounting assembly, the mounting assembly comprising:

[0013] Two sets of fasteners are respectively installed on the side of the spring near the bottom plate of the chassis and the carriage; and

[0014] Two sets of mounting components are configured to cooperate with the two sets of fasteners respectively to install the two sets of fasteners onto the floor of the chassis and the carriage respectively.

[0015] According to embodiments of this disclosure, the fastener includes:

[0016] Two clamping plates, located respectively on the inner and outer sides of the upper or lower part of the spring, and extending along the axial direction of the spring; and

[0017] A fastening bolt passes through the two clamping plates and engages with the threads of the two clamping plates, thereby clamping the spring securely.

[0018] According to an embodiment of this disclosure, the contact surfaces of the two clamps with the spring are provided with grooves, the grooves being configured to at least partially accommodate the spring.

[0019] According to embodiments of this disclosure, each of the springs is formed symmetrically with respect to a bisecting plane perpendicular to the axial direction.

[0020] According to an embodiment of the present disclosure, each turn of each spring is formed to be gradually inclined away from the bisecting plane from top to bottom relative to the plane.

[0021] According to an embodiment of this disclosure, the carriage includes a front door at the front and a rear door at the rear, and the security inspection equipment is configured to receive an item to be tested from the front door, transmit and detect the item to be tested, and deliver the item to the rear door.

[0022] According to embodiments of this disclosure, a transmission device is further included, installed on the front door and / or the rear door, for conveying the item to be tested to the security inspection equipment or receiving the item to be tested output by the security inspection equipment, the transmission device comprising:

[0023] A mounting bracket is installed in the carriage near the front door and / or the rear door;

[0024] A transmission mechanism, one end of which is rotatably mounted on the fixed frame about an axis extending in a first direction, so as to rotate toward the fixed frame to an unfolded state suitable for conveying items or toward the fixed frame to a retracted state.

[0025] A fixing mechanism, mounted on the transmission mechanism, is configured to cooperate with the fixing frame to prevent the transmission mechanism, which is in a rotating retracted state, from rotating relative to the fixing frame toward an extended state, so as to keep the transmission mechanism in a retracted state.

[0026] According to embodiments of this disclosure, the fixing mechanism includes:

[0027] An extension arm extends upward from the upper part of the fixing frame, and the upper end of the extension arm is provided with a fixing hole; and

[0028] A locking pin is configured to extend detachably from the inside of the transmission mechanism and extend upward in a first direction into the fixing hole when the transmission mechanism is in the retracted state.

[0029] According to embodiments of this disclosure, the fixing mechanism further includes:

[0030] Mounting base, mounted on the bottom of the transmission surface away from the transmission mechanism, with the locking pin movably mounted on the mounting base.

[0031] According to embodiments of this disclosure, a flipping mechanism is also included, configured to drive the transmission mechanism to rotate between the folded state and the unfolded state.

[0032] According to embodiments of this disclosure, the flipping mechanism includes:

[0033] A drive assembly is hinged between the fixed frame and the transmission mechanism to drive the transmission mechanism to rotate about the axis in the first direction;

[0034] A limiting component is configured to limit the transmission mechanism in either an expanded or retracted state.

[0035] According to embodiments of this disclosure, the limiting component includes:

[0036] Two first limiting members are installed on the inner side of the fixed frame and extend towards each other in a first direction, such that when the transmission mechanism is in the unfolded state, they respectively abut against the first end of the transmission mechanism near the fixed frame, so as to prevent the transmission mechanism from unfolding further away from the fixed frame.

[0037] According to an embodiment of the present disclosure, the first end of the transmission mechanism is provided with a curved portion extending toward each other in a first direction, the curved portion abutting against the first limiting member when the transmission mechanism is in an unfolded state.

[0038] According to embodiments of this disclosure, the limiting component further includes a second limiting member, the second limiting member comprising:

[0039] Two limiting blocks are installed on the inner side of the fixing frame and protrude towards each other in a first direction; and

[0040] Two extension rods extend from the first end of the transmission mechanism away from the transmission mechanism, such that they abut against the limiting block when the transmission mechanism is in the retracted state, thereby preventing the transmission mechanism from retracting further closer to the fixing frame.

[0041] According to embodiments of this disclosure, the transmission mechanism includes:

[0042] The first transmission component is configured to be rotatably mounted on the mounting frame about an axis in a first direction;

[0043] A second transmission component is slidably mounted on the first transmission component along a second direction and has a retracted state and an extended state. In the retracted state, the second transmission component overlaps with the first transmission component; in the extended state, the second transmission component slides outward in a direction away from the first transmission component.

[0044] A locking mechanism, installed at the junction of the second transmission component and the first transmission component, is configured to lock the second transmission component and the first transmission component in the extended state to prevent the second transmission component from sliding relative to the first transmission component.

[0045] According to embodiments of this disclosure, a conveyor belt is also included, configured to move around the first and second transport components to transport items;

[0046] The locking mechanism is further configured to tension the conveyor belt in the extended state.

[0047] According to an embodiment of this disclosure, when the second transmission component is in the extended state, the first transmission surface of the first transmission component is flush with the second transmission surface of the second transmission component.

[0048] According to embodiments of this disclosure, a guiding mechanism is also included, the guiding mechanism comprising:

[0049] A slide rail is mounted on the outside of the second transmission component;

[0050] A chute is disposed inside the first transmission component and slides in cooperation with the slide rail to guide the slide rail to slide.

[0051] According to an embodiment of this disclosure, the slide rail forms an angle with the second direction. The angle is set such that as the second transmission component slides away from the first transmission component, the height of the second transmission component gradually increases, and when the second transmission component slides to the extended state, the second transmission surface of the second transmission component is flush with the first transmission surface of the first transmission component.

[0052] According to embodiments of this disclosure, the locking mechanism includes:

[0053] A cam assembly, rotatably mounted to the second transmission assembly, is configured to gradually press against the first transmission assembly by rotation to prevent the second transmission assembly from sliding toward the first transmission assembly and to tension the conveyor belt surrounding the first and second transmission assemblies.

[0054] According to embodiments of this disclosure, the locking mechanism further includes a positioning rod extending downward from the first transmission component.

[0055] The cam assembly is mounted on the lower part of the second transmission assembly and, in the extended state, abuts against the positioning rod on the lower part of the second transmission assembly.

[0056] According to embodiments of this disclosure, the cam assembly includes:

[0057] A turntable, rotatably mounted on the lower part of the second transmission assembly; and

[0058] The cam portion is eccentrically mounted on the turntable relative to the turntable and protrudes outward in the radial direction to gradually press against the positioning rod as the turntable rotates.

[0059] According to an embodiment of this disclosure, the cam portion includes:

[0060] The arc-shaped contact surface is configured to gradually press against the positioning rod as the turntable rotates in the pressing direction; and

[0061] A flat contact surface extends flatly from the downstream end of the arcuate contact surface in the abutting direction, such that after the cam portion passes the downstream end in the abutting direction, the flat contact surface contacts the positioning rod parallel to it to prevent the cam assembly from rotating relative to the positioning rod.

[0062] According to an embodiment of this disclosure, when the cam portion is in its lowest position, the cam portion is generally located below the positioning rod, allowing the cam portion to move past the lower end of the positioning rod.

[0063] According to an embodiment of this disclosure, the cam assembly further includes a rocker arm mounted on the turntable to drive the turntable to rotate, causing the cam portion to gradually press against the positioning rod.

[0064] According to embodiments of this disclosure, the locking mechanism further includes a locking component configured to prevent the cam assembly from rotating relative to the positioning rod in the extended state.

[0065] According to embodiments of this disclosure, the locking component includes:

[0066] Two locking holes are respectively provided on the positioning rod and the rocker arm; and

[0067] A locking element is movably inserted into the locking hole to prevent the rocker arm from rotating relative to the positioning rod.

[0068] According to the shock-absorbing vehicle-mounted security inspection system provided by the present invention, the security inspection equipment is placed inside the vehicle compartment. During vehicle travel, due to road bumps, the security inspection equipment and the vehicle compartment will vibrate. The shock-absorbing mechanism located between the chassis and the floor of the vehicle compartment allows the vehicle compartment to be elastically suspended above the chassis, so that the vehicle compartment and the chassis are in non-rigid contact. The shock-absorbing mechanism has a shock-absorbing and buffering effect on the vehicle compartment and the security inspection equipment, thereby reducing the vibration and impact force on the vehicle compartment and the security inspection equipment, improving the protection of the security inspection equipment, and extending the service life of the vehicle-mounted security inspection system. Attached Figure Description

[0069] Figure 1 This is a three-dimensional schematic diagram of a shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0070] Figure 2 This is a side view of the combination of the floor and chassis of the vehicle compartment of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0071] Figure 3 This is a top view of the chassis of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0072] Figure 4 This is a top view of the transmission device of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention, retracted into the vehicle compartment;

[0073] Figure 5 This is a top view of the transmission device of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention, extended outside the vehicle compartment;

[0074] Figure 6 This is a cross-sectional view of the shock-absorbing mechanism of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0075] Figure 7This is another cross-sectional view of the shock-absorbing mechanism of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0076] Figure 8 yes Figure 7 A magnified view of a portion of the image;

[0077] Figure 9 This is a side view of the shock-absorbing mechanism of a shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0078] Figure 10 This is a three-dimensional schematic diagram of the shock-absorbing mechanism of a shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0079] Figure 11 This is a three-dimensional schematic diagram of the shock-absorbing vehicle-mounted security inspection system in a retracted state according to an embodiment of the present invention;

[0080] Figure 12 This is a partially enlarged view of the fixing mechanism of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0081] Figure 13 This is a three-dimensional schematic diagram of the shock-absorbing vehicle-mounted security inspection system in its deployed state according to an embodiment of the present invention;

[0082] Figure 14 This is a partially enlarged view of the first limiting member of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0083] Figure 15 This is a partially enlarged view of the second limiting member of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0084] Figure 16 This is a schematic diagram of the retracted state of the transmission mechanism of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0085] Figure 17 This is a schematic diagram of the extension process of the transmission mechanism of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0086] Figure 18 This is a schematic diagram of the extended state of the transmission mechanism of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0087] Figure 19 This is a schematic diagram of the locking mechanism of a shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention;

[0088] Figure 20 This is a schematic diagram of the locking mechanism of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention during rotation.

[0089] Figure 21This is a schematic diagram of the locking mechanism of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention in a tightened state;

[0090] Figure 22 This is a partial enlarged view of the locking mechanism of the shock-absorbing vehicle-mounted security inspection system according to an embodiment of the present invention.

[0091] Figure Labels

[0092] 1. Fixture;

[0093] 2. Transmission mechanism; 21. First transmission component; 22. Second transmission component; 23. Conveyor belt; 24. Bending section;

[0094] 3. Locking mechanism; 31. Cam assembly; 311. Turntable; 312. Cam part; 3121. Arc-shaped contact surface; 3122. Flat contact surface; 313. Rocker arm; 32. Positioning rod; 33. Locking assembly; 331. Locking hole; 332. Locking element;

[0095] 4. Fixing mechanism; 41. Extension arm; 411. Fixing hole; 42. Locking pin; 43. Mounting base;

[0096] 5. Guiding mechanism; 51. Slide rail; 52. Slide groove;

[0097] 6. Tilting mechanism; 61. Drive assembly; 62. Limiting assembly; 621. First limiting member; 622. Second limiting member; 6221. Limiting block; 6222. Extension rod;

[0098] 7. Vehicle body; 71. Chassis; 711. First receiving slot;

[0099] 8. Carriage; 81. Security inspection equipment; 82. Second receiving tank; 83. Front door; 84. Rear door; 85. Transmission device;

[0100] 9. Shock absorption mechanism; 91. Spring; 92. Mounting assembly; 921. Fastener; 9211. Clamping plate; 9212. Fastening bolt; 9213. Groove; 922. Mounting component. Detailed Implementation

[0101] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0102] The present invention is described herein with respect to structural embodiments and methods. It should be understood that this is not intended to limit the invention to the specific disclosed embodiments; the invention can be practiced using other features, elements, methods, and embodiments. Similar elements in different embodiments are typically designated with similar numbers.

[0103] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this disclosure; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0104] In the description of this disclosure, it should be understood that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this disclosure.

[0105] This invention provides a shock-absorbing vehicle-mounted security inspection system, such as... Figure 1 and Figure 2 As shown, the shock-absorbing vehicle-mounted security inspection system includes a vehicle body 7, a passenger compartment 8, security inspection equipment 81, and a shock-absorbing mechanism 9.

[0106] The vehicle body 7 includes a chassis 71, which is parallel to the horizontal plane. The cargo compartment 8 is located above the chassis 71. The security inspection equipment 81 includes an X-ray scanning device, which is installed inside the cargo compartment 8 to transport and inspect the items being inspected. The shock absorption mechanism 9 is installed between the chassis 71 and the floor of the cargo compartment 8, so that the cargo compartment 8 is elastically suspended above the chassis 71 to reduce the vibration and impact force on the cargo compartment 8 and the security inspection equipment 81.

[0107] In one exemplary embodiment, a suspension device is mounted on the front of the chassis 11, the suspension device being configured to be detachably connected to the towing device of the motor vehicle. Thus, the vehicle-mounted security inspection system of the above embodiments of the present invention can be moved to the desired location under the towing of a motor vehicle, such as a truck or bus. After reaching the desired location, the motor vehicle can be separated from the vehicle-mounted security inspection system, and the vehicle-mounted security inspection system can be secured to conduct security inspections.

[0108] According to the shock-absorbing vehicle-mounted security inspection system provided in this embodiment, the security inspection equipment 81 is placed inside the vehicle compartment 8. During the vehicle's movement, due to road bumps, the security inspection equipment 81 and the vehicle compartment 8 will vibrate. The shock-absorbing mechanism 9 located between the chassis 71 and the floor of the vehicle compartment 8 allows the vehicle compartment 8 to be elastically suspended above the chassis 71, so that the vehicle compartment 8 and the chassis 71 are in non-rigid contact. The shock-absorbing mechanism 9 provides shock absorption and buffering for the vehicle compartment 8 and the security inspection equipment 81, thereby reducing the vibration impact force on the vehicle compartment 8 and the security inspection equipment 81, improving the protection of the security inspection equipment 81, and extending the service life of the vehicle-mounted security inspection system.

[0109] In one exemplary embodiment, such as Figure 3 As shown, the shock absorption mechanism 9 includes multiple springs 91, all of which are arranged with their axial directions parallel to the horizontal plane. That is, each spring is horizontally positioned and provides elastic support in the radial direction.

[0110] In one exemplary embodiment, such as Figure 3 As shown, the chassis 71 of the vehicle body 7 is parallel to the horizontal plane. The top of the chassis 71 is provided with a first receiving groove 711 at the part opposite to the multiple springs 91. The multiple first receiving grooves 711 are distributed at intervals to accommodate the lower part of the springs 91.

[0111] like Figure 4 and Figure 5 As shown, the carriage 8 includes a front door 83 at the front and a rear door 84 at the rear. The security inspection equipment 81 is configured to receive the item to be inspected from the front door 83, transmit and inspect the item via X-ray scanning, and then transport the item to the rear door 84, thereby achieving X-ray scanning inspection of the item. Figure 6 As shown, the carriage 8 is located above the chassis 71. The bottom plate of the carriage 8 is provided with a second receiving groove 82 at the part opposite to the multiple springs 91 to receive the upper part of the springs 91.

[0112] In one exemplary embodiment, such as Figure 7 and Figure 10 As shown, springs 91 are placed horizontally, with their axial direction parallel to the horizontal plane. Each spring 91 is symmetrically arranged with respect to a bisecting plane perpendicular to the axial direction. For example, when springs 91 are horizontal, the rotation direction of springs 91 from the middle to one end is clockwise, and the rotation direction of springs 91 from the middle to the other end is counterclockwise. Each turn of each spring 91 is formed to gradually tilt away from the bisecting plane from top to bottom. In an alternative embodiment, each turn of each spring 91 is formed to gradually tilt towards the bisecting plane from top to bottom with respect to a plane located in the radial direction.

[0113] According to embodiments of this disclosure, when the security inspection equipment 81 and the carriage 8 vibrate due to bumpy roads, the carriage 8 compresses the spring 91, causing the spring 91 to undergo elastic deformation, thus providing shock absorption and cushioning for the carriage 8. The horizontal placement of the spring 91 enhances its load-bearing capacity. Furthermore, the spring 91 is symmetrically arranged relative to a plane perpendicular to the axial direction, and each coil of each spring 91 is formed to gradually tilt away from the plane from top to bottom. This allows the spring 91 to disperse external force to both ends when subjected to compressive force, reducing the tendency of the spring 91 to tilt to one end, further improving its load-bearing capacity and balance, thereby enhancing the shock absorption effect of the spring 91 on the carriage 8 and the security inspection equipment 81.

[0114] In one exemplary embodiment, such as Figure 8 and Figure 9 As shown, the shock absorption mechanism 9 also includes a mounting assembly 92 for mounting the upper and lower parts of the spring 91 into the first receiving groove 711 of the chassis 71 and the second receiving groove 82 of the floor plate of the carriage 8, respectively.

[0115] like Figure 8 and Figure 10 As shown, the mounting assembly 92 includes two sets of fasteners 921 and two sets of mounting members 922. The two sets of fasteners 921 are respectively mounted on the side of the spring 91 near the chassis 71 and the floor plate of the carriage 8; the two sets of mounting members 922 are configured to cooperate with the two sets of fasteners 921 to install the two sets of fasteners 921 onto the floor plates of the chassis 71 and the carriage 8, respectively. The mounting members 922 are bolts or screws, and the two sets of mounting members 922 pass through the two sets of fasteners 921 and are installed in the first receiving groove 711 of the chassis 71 and the second receiving groove 82 of the floor plate of the carriage 8, respectively.

[0116] According to the embodiments of this disclosure, two sets of fasteners 921 are respectively installed on the upper and lower parts of the spring 91. Then, two sets of mounting parts 922 pass through the two sets of fasteners 921 and are installed in the first receiving groove 711 of the chassis 71 and the second receiving groove 82 of the bottom plate of the carriage 8, thereby installing the spring 91 between the chassis 71 and the bottom plate of the carriage 8, which is convenient for installation.

[0117] In one exemplary embodiment, such as Figure 8 and 10 As shown, the fastener 921 includes two clamping plates 9211 and a fastening bolt 9212. The two clamping plates 9211 are located on the inner and outer sides of the upper or lower part of the spring 91, respectively. Both clamping plates 9211 are elongated and extend along the axial direction of the spring 91. The fastening bolt 9212 passes through the two clamping plates 9211 and is threadedly engaged with the two clamping plates 9211, so that the two clamping plates 9211 fasten and clamp the spring 91.

[0118] According to the embodiments of this disclosure, when installing the spring 91, two sets of fasteners 921 are located at the upper and lower parts of the spring 91, respectively. The two clamping plates 9211 of each set of fasteners 921 are located on the inner and outer sides of the spring 91, respectively, and extend along the axial direction of the spring 91. The fastening bolt 9212 passes through the two clamping plates 9211 and is threadedly engaged with the two clamping plates 9211. The fastening bolt 9212 causes the two clamping plates 9211 to clamp the spring 91 tightly. The clamping plates 9211 increase the contact area between the spring 91 and the bottom plate of the chassis 71 and the carriage 8, making it easier for the mounting component 922 to pass through the clamping plates 9211 and install the two sets of fasteners 921 onto the bottom plate of the chassis 71 and the carriage 8, respectively, thereby improving the convenience and stability of the spring 91 installation.

[0119] In one exemplary embodiment, such as Figure 8 and 10 As shown, the contact surfaces of the two clamping plates 9211 and the spring 91 are provided with grooves 9213. The grooves 9213 are arc-shaped and conform to the shape of the spring wire forming the spring. The grooves 9213 are constructed to at least partially accommodate the spring 91, increasing the contact area between the clamping plates 9211 and the spring 91. This makes the clamping plates 9211 and the spring wire of the spring 91 fit more closely, reducing the possibility of displacement of the clamping plates 9211 and the spring 91, and further improving the convenience and stability of the spring 91 installation.

[0120] In one exemplary embodiment, such as Figure 11 and Figure 12 As shown, the transmission device 85 includes a fixed frame 1, a transmission mechanism 2, and a fixing mechanism 4.

[0121] For ease of description, such as Figure 11 As shown, the mounting bracket 1 is placed vertically. The mounting bracket 1 is suitable for installation inside the carriage 102 or other places of use. It can be understood that in actual working scenarios, the mounting bracket 1 can be tilted as needed.

[0122] like Figure 11 and Figure 13 As shown, one end of the transmission mechanism 2 is rotatably mounted on the fixed frame 1 about an axis extending in a first direction, so that it can be rotated in a direction away from the fixed frame 1 to an unfolded state suitable for conveying items or in a direction closer to the fixed frame 1 to a retracted state. The first direction is a horizontal transverse direction.

[0123] like Figure 11 and Figure 12 As shown, the fixing mechanism 4 is mounted on the transmission mechanism 2 and is configured to cooperate with the fixing frame 1 to prevent the transmission mechanism 2, which is in a rotating and retracted state, from rotating relative to the fixing frame 1 toward an unfolded state suitable for transporting items, so as to keep the transmission mechanism 2 in a retracted state suitable for storage and transportation.

[0124] According to the embodiments of this disclosure, in the storage state, the transmission mechanism 2 is in a retracted state. The fixing mechanism 4 cooperates with the fixing frame 1 to prevent the transmission mechanism 2, which is rotating and retracting, from rotating relative to the fixing frame 1 toward an unfolded state, so as to keep the transmission mechanism 2 in the retracted state, reduce the space occupation rate, and improve the applicability of the transmission device 85. When in use, the restriction of the fixing mechanism 4 on the transmission mechanism 2 is removed, and the transmission mechanism 2 is rotated in a direction away from the fixing frame 1, so that the transmission mechanism 2 is in an unfolded state to transport items. It is convenient to adjust the transmission device 85 to the unfolded state or the retracted state, reducing the limitation of the usage site. Moreover, the adjustment operation of the transmission device 85 is convenient, improving the convenience of storage and adjustment of the transmission device.

[0125] In one exemplary embodiment, such as Figure 11 and Figure 12 As shown, the fixing mechanism 4 includes an extension arm 41 and a locking pin 42. In this embodiment, two extension arms 41 are provided, located at opposite ends of the fixing frame 1 along the first direction. Both extension arms 41 extend upwards from the upper part of the fixing frame 1, and each extension arm 41 has a fixing hole 411 at its upper end. The fixing hole 411 penetrates the extension arm 41 and is located above the rotation axis of the transmission mechanism 2. The plane formed by the two holes has an angle greater than zero with the vertical direction, thereby generating a torque that prevents the transmission mechanism 2, which is in a retracted state, from rotating relative to the fixing frame 1 towards an extended state. Two locking pins 42 are provided, respectively positioned opposite the two fixing holes 411. The two locking pins 42 are configured to extend detachably from the inside of the transmission mechanism 2 and extend upwards in the first direction into the two fixing holes 411 when the transmission mechanism 2 is in the retracted state.

[0126] In one exemplary embodiment, such as Figure 11 and Figure 12 As shown, the fixing mechanism 4 also includes two mounting seats 43, which are mounted on the bottom of the transmission surface away from the transmission mechanism 2 and are respectively configured to cooperate with two locking pins 42. The locking pins 42 are movably mounted on the mounting seats 43 along the first direction.

[0127] According to an embodiment of this disclosure, when the transmission mechanism 2 is in a vertically retracted state, the locking pins 42 slide along the first direction. The two locking pins 42 move relative to the mounting base 43 toward the direction close to the two fixing holes 411. The two locking pins 42 are respectively inserted into the two fixing holes 411 and located on the side (bottom side) opposite to the transmission surface of the transmission mechanism 2. The two locking pins 42 and the extension arm 41 prevent the transmission mechanism 2, which is in a rotating retracted state, from rotating toward the unfolded state relative to the fixing frame 1, so that the transmission mechanism 2 is kept in a vertically retracted state, which improves the stability of the transmission mechanism 2 in the retracted state, reduces the space occupation rate, and improves the applicability of the transmission device 85.

[0128] In one exemplary embodiment, such as Figure 13 As shown, the transmission device 85 also includes a flipping mechanism 6, which is configured to drive the transmission mechanism 2 to rotate between a folded state and an unfolded state.

[0129] In one exemplary embodiment, such as Figure 13As shown, the flipping mechanism 6 includes a drive assembly 61 and a limiting assembly 62. The drive assembly 61 includes, but is not limited to, a hydraulic cylinder, a pneumatic cylinder, or a pulley assembly. In this embodiment, the drive assembly 61 is a pneumatic cylinder. The two ends of the drive assembly 61 are hinged between the fixed frame 1 and the transmission mechanism 2 to drive the transmission mechanism 2 to rotate about an axis in a first direction. The limiting assembly 62 is configured to limit the transmission mechanism 2 when it is in an unfolded or retracted state.

[0130] In one exemplary embodiment, such as Figure 13 and Figure 14 As shown, the limiting component 62 includes two first limiting members 621. The two first limiting members 621 are installed on the inner side of the fixing frame 1 and extend towards each other in a first direction, so that when the transmission mechanism 2 is in the unfolded state, they respectively abut against the first end of the transmission mechanism 2 near the fixing frame 1 to prevent the transmission mechanism 2 from unfolding further away from the fixing frame 1.

[0131] In one exemplary embodiment, such as Figure 14 and Figure 16 As shown, the first end of the transmission mechanism 2 is provided with a curved portion 24 extending towards each other in a first direction. The curved portion 24 abuts against the first limiting member 621 when the transmission mechanism 2 is in the unfolded state, thereby increasing the stability and firmness of the contact between the transmission mechanism 2 and the first limiting member 621. In one embodiment, the first limiting member 621 includes a protrusion extending from the extension arm 41 toward the transmission mechanism 2, for example, including a nut or a blocking block welded to the extension arm 41.

[0132] According to an embodiment of this disclosure, when using the transmission device 85, the restriction of the fixed mechanism 4 on the transmission mechanism 2 is removed, and the drive assembly 61 rotates the transmission mechanism 2 away from the fixed frame 1. The transmission mechanism 2 rotates and unfolds. When the transmission mechanism 2 is in the unfolded state, the bent portion 24 abuts against the first limiting member 621 to prevent the transmission mechanism 2 from unfolding further away from the fixed frame 1, so that the transmission mechanism 2 remains in the unfolded state.

[0133] In one exemplary embodiment, such as Figure 15 As shown, the limiting assembly 62 also includes a second limiting member 622, which includes two limiting blocks 6221 and two extension rods 6222. The two limiting blocks 6221 are mounted on the inner side of the fixing frame 1 and protrude towards each other in a first direction; the two extension rods 6222 extend from the first end of the transmission mechanism 2 away from the transmission mechanism 2, so that when the transmission mechanism 2 is in the retracted state, they abut against the limiting blocks 6221 to prevent the transmission mechanism 2 from retracting further closer to the fixing frame 1.

[0134] According to the embodiments of this disclosure, after the transmission device 85 is used, the drive assembly 61 rotates the transmission mechanism 2 toward the fixed frame 1, and the transmission mechanism 2 rotates from the unfolded state to the retracted state. When the transmission mechanism 2 is in the retracted state, the two extension rods 6222 respectively abut against the two limit blocks 6221 to prevent the transmission mechanism 2 from moving further toward the fixed frame 1 to retract. Then, the fixing mechanism 4 cooperates with the fixed frame 1 to keep the transmission mechanism 2 in the retracted state, which reduces the limitation of the usage site, and the transmission device 85 is easy to adjust and operate, improving the convenience of storage and adjustment of the transmission device.

[0135] In one exemplary embodiment, such as Figure 16 As shown, the transmission mechanism 2 includes a first transmission component 21, a second transmission component 22, and a locking mechanism 3.

[0136] For ease of description, such as Figure 16 , Figure 17 and Figure 18 As shown, the transmission mechanism 2 is placed horizontally. It can be understood that in actual working scenarios, the transmission mechanism 2 can be tilted as needed. With the first transmission component 21 placed horizontally, the second transmission component 22 is slidably mounted on the first transmission component 21 along a second direction (longitudinal left-right direction) and has a retracted state and an extended state. In the retracted state, the second transmission component 22 overlaps with the first transmission component 21 for easy transport and storage; in the extended state, the second transmission component 22 slides outwards away from the first transmission component 21 to transport items.

[0137] like Figure 18 As shown, the locking mechanism 3 is installed at the junction of the first transmission component 21 and the second transmission component 22, and is configured to lock the second transmission component 22 in the extended state with the first transmission component 21 to prevent the second transmission component 22 from sliding relative to the first transmission component 21.

[0138] According to the telescopic tracked conveyor provided in this embodiment, in the initial state, the second transmission component 22 and the first transmission component 21 are in a retracted state with overlapping placement, occupying little space, which is convenient for transportation and storage. In use, the second transmission component 22 is slid out in a direction away from the first transmission component 21. When the second transmission component 22 is in the extended state, the locking mechanism 3 locks the second transmission component 22 and the first transmission component 21 in the extended state to prevent the second transmission component 22 and the first transmission component 21 from sliding relative to each other. In this way, the first transmission component 21 and the second transmission component 22 can be fixed, thereby increasing the length of the tracked conveyor. By setting the second transmission component 22 and the locking mechanism 3, the tracked conveyor can meet the requirements of adjustable length and reduced space occupation, so as to meet the use of scenarios where telescopic folding is required in narrow spaces, and improve the convenience of easy storage and length adjustment of the tracked conveyor.

[0139] In one exemplary embodiment, such as Figure 16 and Figure 17 As shown, the first transmission component 21 is placed horizontally, and the top surfaces of both the first transmission component 21 and the second transmission component 22 are horizontally positioned. The first transmission component 21 has an internal space suitable for accommodating the second transmission component 22. The second transmission component 22 is slidably mounted inside the first transmission component 21 along a second direction and has both a retracted and an extended state. For example, as... Figure 6 As shown, in the contracted state, the second transmission component 22 is located at the bottom of the first transmission component 21 and overlaps with the first transmission component 21. In the extended state, the second transmission component 22 slides out in a direction away from the first transmission component 21.

[0140] In one exemplary embodiment, such as Figure 18 As shown, when the second transmission component 22 is in the extended state, the first transmission surface of the first transmission component 21 is flush with the second transmission surface of the second transmission component 22. The first transmission surface and the second transmission surface are the top surface of the first transmission component 21 and the top surface of the second transmission component 22, respectively. The first transmission surface and the second transmission surface form the transmission contact surface of the transmitted object.

[0141] In one exemplary embodiment, the first transmission component 21 and the second transmission component 22 are configured as a transmission machine, on which a plurality of rotating rollers are rotatably connected to convey articles.

[0142] In one exemplary embodiment, such as Figure 8As shown, the transmission device 85 also includes a conveyor belt 23 configured to move around the first transmission assembly 21 and the second transmission assembly 22 to transport items. When the second transmission assembly 22 is in the extended state, the first transmission surface and the second transmission surface form the transmission contact surface for transporting the items. The conveyor belt 23 moves around the first transmission assembly 21 and the second transmission assembly 22. The locking mechanism 3 is further configured to tension the conveyor belt 23 in the extended state to prevent the conveyor belt 23 from slipping during movement.

[0143] In one exemplary embodiment, such as Figure 17 and Figure 18 As shown, the transmission device 85 also includes a guiding mechanism 5, which includes a slide rail 51 and a slide groove 52. The slide rail 51 is mounted on the side wall of the second transmission component 22; the slide groove 52 is disposed on the inner side wall of the first transmission component 21 and slides in cooperation with the slide rail 51 to guide the slide rail 51 to slide. Alternatively, the slide rail 51 can be mounted on the inner side wall of the first transmission component 21, and the slide groove 52 can be disposed on the side wall of the second transmission component 22 and slide in cooperation with the slide rail 51.

[0144] In one exemplary embodiment, such as Figure 17 and Figure 18 As shown, the slide rail 51 forms an angle with the second direction. The angle is set so that as the second transmission component 22 slides away from the first transmission component 21, the height of the second transmission component 22 is gradually increased. When the second transmission component 22 slides to the extended state, the second transmission surface of the second transmission component 22 is flush with the first transmission surface of the first transmission component 21. In this way, the first transmission surface and the second transmission surface form a flat transmission surface, which can smoothly transmit items and avoid the items being transmitted from bumping or vibrating during the transmission process.

[0145] According to an embodiment of this disclosure, during the process of pulling the second transmission component 22 to the extended state, the operator pulls the second transmission component 22 away from the first transmission component 21 along the second direction. Simultaneously, the slide rail 51 slides along the slide groove 52 away from the first transmission component 21. The slide rail 51, which forms an angle with the second direction, causes the second transmission component 22 to continuously rise during the sliding process. This ensures that when the second transmission component 22 slides to the extended state, the second transmission surface of the second transmission component 22 is flush with the first transmission surface of the first transmission component 21. Thus, when an item is placed on the conveyor belt 23 for transport, the first and second transmission surfaces are flush, solving the problem of a height difference between the first and second transmission surfaces. This reduces friction between the conveyor belt 23 and the first and second transmission components 21 and 22, improves the transport efficiency of the conveyor belt 23, reduces wear on the conveyor belt 23, and extends the service life of the telescopic tracked conveyor.

[0146] In one exemplary embodiment, such as Figure 18 As shown, the locking mechanism 3 is installed at the junction of the first transmission component 21 and the second transmission component 22, and is configured to lock the second transmission component 22 in the extended state with the first transmission component 21 to prevent the second transmission component 22 from sliding relative to the first transmission component 21.

[0147] Specifically, such as Figure 19 As shown, the locking mechanism 3 includes a cam assembly 31, which is rotatably mounted on the bottom of the second transmission assembly 22. It is configured to gradually press the second transmission assembly 22, which is in an extended state, against the first transmission assembly 21 by rotation, so as to prevent the second transmission assembly 22 from sliding toward the first transmission assembly 21 and to tension the conveyor belt 23 surrounding the first transmission assembly 21 and the second transmission assembly 22.

[0148] In one exemplary embodiment, such as Figure 19 and Figure 20 As shown, the locking mechanism 3 also includes a positioning rod 32 extending downward from the first transmission component 21, such as a rectangular rod with a rectangular cross-section. The cam component 31 is installed at the lower part of the second transmission component 22 and abuts against the positioning rod 32 at the lower part of the second transmission component 22 in the extended state.

[0149] Specifically, such as Figure 20 and Figure 21 As shown, the cam assembly 31 includes a turntable 311 and a cam portion 312. The turntable 311 is disc-shaped and is vertically arranged relative to the first or second transmission surface. The turntable 311 is rotatably mounted on the lower part of the second transmission assembly 22 and is located inside the positioning rod 32 so as not to hinder the sliding of the second transmission assembly 22 during the unfolding process. The cam portion 312 is eccentrically mounted on the turntable 311 relative to the turntable 311 and protrudes outward in the radial direction so as to gradually press against the positioning rod 32 as the turntable 311 rotates during the movement to the side closer to the positioning rod 32.

[0150] In one exemplary embodiment, such as Figure 20 and Figure 21 As shown, when the cam portion 312 is at its lowest position, the cam portion 312 is generally located below the positioning rod 32. The top surface of the cam portion 312 is flat and located below the positioning rod 32, so as not to hinder the sliding of the second transmission component 22 during the unfolding process, and to allow the cam portion 312 to move past the lower end of the positioning rod 32.

[0151] According to an embodiment of this disclosure, during the process of the second transmission component 22 sliding away from the first transmission component 21 to the extended state, when the cam portion 312 is in the lowest position, the cam portion 312 is located below the positioning rod 32. The cam portion 312 passes over the lower end of the positioning rod 32. When the second transmission component 22 is in the extended state, the turntable 311 is rotated, and the cam portion 312 rotates with the turntable 311. The cam portion 312 gradually presses against the positioning rod 32, locking the second transmission component 22 in the extended state with the first transmission component 21 to prevent the second transmission component 22 from sliding relative to the first transmission component 21, thereby tensioning the conveyor belt 23.

[0152] In one exemplary embodiment, such as Figure 20 and Figure 21 As shown, the cam portion 312 includes an arcuate contact surface 3121 and a flat contact surface 3122. The arcuate contact surface 3121 is configured to gradually press against the positioning rod 32 as the turntable 311 rotates in the pressing direction (clockwise direction in the figure). The flat contact surface 3122 extends flatly from the downstream end of the arcuate contact surface 3121 in the pressing direction, such that after the cam portion 312 passes the downstream end in the pressing direction, the flat contact surface 3122 contacts the positioning rod 32 in parallel, thereby preventing the cam assembly 31 from rotating relative to the positioning rod 32. In other words, when the flat contact surface 3122 of the cam portion 312 is in parallel contact with the positioning rod 32, it can prevent the cam portion 312 from continuing to move in the clockwise direction, and it can also prevent the cam portion 312 from moving in the counterclockwise direction.

[0153] Specifically, the required tension distance for the conveyor belt 23 needs to be calculated. For example, if the required tension of the conveyor belt 23 is 7mm, the tension distance of the designed cam part 312 must be greater than 7mm. Since there is a certain tension force when the belt is in the theoretical initial untensioned state, the actual belt is in a state of 5mm slack in the untensioned state. The second transmission component 22 rotates from the untensioned state to the tensioned state, and the moving distance is 12mm, which actually tensions it by 7mm, thus meeting the design requirements.

[0154] According to the embodiments of this disclosure, as the cam portion 312 gradually presses against the positioning rod 32, the cam portion 312 rotates with the turntable 311, and the arc-shaped contact surface 3121 slides relative to the positioning rod 32. Then, after the cam portion 312 passes the downstream end in the pressing direction, the flat contact surface 3122 contacts the positioning rod 32 in parallel. The flat contact surface 3122 contacts the positioning rod 32, increasing the contact area between the cam portion 312 and the positioning rod 32. Furthermore, during the process of the cam portion 312 tensioning the conveyor belt 23, the flat contact surface 3122 limits the cam portion 312, preventing the cam portion 312 from rotating relative to the positioning rod 32, thereby improving the stability of the cam portion 312 locking the second transmission component 22 and the first transmission component 21 in the extended state.

[0155] In one exemplary embodiment, such as Figure 20 and Figure 22 As shown, the cam assembly 31 also includes a rocker arm 313, which is mounted on the turntable 311 to drive the turntable 311 to rotate, causing the cam portion 312 to gradually press against the positioning rod 32. The rocker arm 313 is located outside the cam portion 312, or it can be located outside the cam portion 312. The rocker arm 313 extends outward from the turntable 311, making it easier for the operator to grip and apply external force, thus improving the ease of operation of the cam assembly 31. It can be understood that in the tensioned state shown in the figure, since the arc-shaped contact surface 3121 and the flat contact surface 3122 of the cam portion 312 are connected, if the rocker arm 313 is held and the cam portion 312 is rotated counterclockwise, the tension of the second transmission assembly 22 can be gradually released. Furthermore, if the rocker arm 313 is rotated further until the cam portion 312 is located below the positioning rod 32 as shown in the figure, the second transmission assembly 22 can be retracted into the first transmission assembly 21 to perform the storage and transportation of the entire telescopic tracked conveyor.

[0156] In one exemplary embodiment, such as Figure 22 As shown, the cam assembly 31 also includes a locking component 33, which is configured to prevent the cam assembly 31 from rotating relative to the positioning rod 32 in the extended state.

[0157] In one exemplary embodiment, such as Figure 22 As shown, the locking assembly 33 includes two locking holes 331 and a locking element 332. The two locking holes 331 are respectively disposed on the positioning rod 32 and the rocker arm 313, and both locking holes 331 penetrate the positioning rod 32 and the rocker arm 313. The locking element 332 is movably inserted into the locking holes 331 to prevent the rocker arm 313 from rotating relative to the positioning rod 32. The locking element 332 includes a locking pin 42 or a locking screw.

[0158] Specifically, when the locking element 332 is a locking pin 42, the locking pin 42 is slidably inserted into the locking hole 331 of the rocker arm 313. The locking pin 42 is configured to be inserted into the locking hole 331 of the positioning rod 32 to lock the rocker arm 313 and the positioning rod 32, so as to prevent the rocker arm 313 from rotating relative to the positioning rod 32.

[0159] Specifically, when the locking member 332 is a locking screw, the locking screw is inserted into the locking hole 331 of the rocker arm 313 and threadedly connected to the rocker arm 313, and is configured to be inserted into the locking hole 331 of the positioning rod 32 to lock the rocker arm 313 and the positioning rod 32 to prevent the rocker arm 313 from rotating relative to the positioning rod 32. The locking screw reduces the possibility of slipping out of the locking hole 331 of the rocker arm 313.

[0160] According to the shock-absorbing vehicle-mounted security inspection system provided in this embodiment, the security inspection equipment is placed inside the vehicle compartment. During vehicle travel, due to road bumps, the security inspection equipment and the vehicle compartment will vibrate. The shock-absorbing mechanism located between the chassis and the floor of the vehicle compartment allows the vehicle compartment to be elastically suspended above the chassis, resulting in non-rigid contact between the vehicle compartment and the chassis. The shock-absorbing mechanism provides shock absorption and buffering for the vehicle compartment and the security inspection equipment, thereby reducing the vibration and impact force on the vehicle compartment and the security inspection equipment, improving the protection of the security inspection equipment, and extending the service life of the vehicle-mounted security inspection system.

[0161] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A shock-absorbing vehicle-mounted security inspection system, characterized in that, include: The vehicle body, including the chassis; A carriage, located above the chassis, includes a front door at the front and a rear door at the rear, and a transmission device installed on the front door and / or the rear door, the transmission device comprising: A mounting bracket is installed in the carriage near the front door and / or the rear door; The transmission mechanism includes: The first transmission component is configured to be rotatably mounted on the mounting frame about an axis in a first direction; The second transmission component is slidably mounted on the first transmission component along a second direction and has a retracted state and an extended state. In the retracted state, the second transmission component overlaps with the first transmission component. In the extended state, the second transmission component slides out in a direction away from the first transmission component. Locking mechanisms include: A positioning rod extends downward from the first transmission component; Cam assembly, including: A turntable, rotatably mounted on the lower part of the second transmission assembly; and A cam portion is eccentrically mounted on the turntable relative to the turntable and protrudes outward in the radial direction to gradually press against the positioning rod as the turntable rotates, thereby locking the second transmission component in the extended state with the first transmission component and preventing the second transmission component from sliding relative to the first transmission component. Security inspection equipment, installed inside the carriage, is used to transmit and inspect items. A shock-absorbing mechanism is installed between the chassis and the floor of the carriage, allowing the carriage to be elastically suspended above the chassis, thereby reducing the vibration and impact force on the carriage and the security inspection equipment.

2. The shock-absorbing vehicle-mounted security inspection system according to claim 1, characterized in that, The shock absorption mechanism (9) includes multiple springs (91), and the axial direction of the multiple springs (91) is parallel to the horizontal plane.

3. The shock-absorbing vehicle-mounted security inspection system according to claim 2, characterized in that, The chassis (71) and the carriage (8) are respectively provided with a first receiving groove (711) and a second receiving groove (82) at the parts opposite to the spring (91). The cross-sections of the first receiving groove (711) and the second receiving groove (82) are both formed in an arc shape to accommodate the lower part and the upper part of the spring (91) respectively.

4. The shock-absorbing vehicle-mounted security inspection system according to claim 2, characterized in that, The shock absorption mechanism (9) also includes a mounting assembly (92), which comprises: Two sets of fasteners (921) are respectively installed on one side of the spring (91) near the bottom plate of the chassis (71) and the carriage (8); and Two sets of mounting components (922) are configured to cooperate with the two sets of fasteners (921) respectively to install the two sets of fasteners (921) onto the floor plates of the chassis (71) and the carriage (8).

5. The shock-absorbing vehicle-mounted security inspection system according to claim 4, characterized in that, The fastener (921) includes: Two clamping plates (9211) are located on the inner and outer sides of the upper or lower part of the spring (91), respectively, and extend along the axial direction of the spring (91); and A fastening bolt (9212) passes through the two clamping plates (9211) and is threaded into the two clamping plates (9211) so that the two clamping plates (9211) fasten and clamp the spring (91).

6. The shock-absorbing vehicle-mounted security inspection system according to claim 5, characterized in that, The contact surfaces of the two clamps (9211) with the spring (91) are provided with grooves (9213), which are configured to at least partially accommodate the spring (91).

7. The shock-absorbing vehicle-mounted security inspection system according to any one of claims 2-6, characterized in that, Each of the springs (91) is formed symmetrically with respect to a bisecting plane perpendicular to the axial direction.

8. The shock-absorbing vehicle-mounted security inspection system according to claim 7, characterized in that, Each coil of each spring (91) is formed to be inclined from top to bottom away from the bisecting plane relative to the plane.

9. The shock-absorbing vehicle-mounted security inspection system according to any one of claims 1-6, characterized in that, The security inspection device (81) is configured to receive the item to be inspected from the front door (83), transmit and inspect the item to be inspected, and deliver the item to the rear door (84).

10. The shock-absorbing vehicle-mounted security inspection system according to claim 9, characterized in that, The transmission device (85) is used to transport the item to be tested to the security inspection equipment (81) or to receive the item to be tested output by the security inspection equipment (81). The transmission device (85) includes: One end of the transmission mechanism (2) is rotatably mounted on the fixed frame (1) about an axis extending in a first direction, so as to rotate in a direction away from the fixed frame (1) to an unfolded state suitable for conveying items or in a direction close to the fixed frame (1) to a retracted state. A fixing mechanism (4), mounted on the transmission mechanism (2), is configured to cooperate with the fixing frame (1) to prevent the transmission mechanism (2) in a rotating and retracted state from rotating relative to the fixing frame (1) toward an extended state, so as to keep the transmission mechanism (2) in a retracted state.

11. The shock-absorbing vehicle-mounted security inspection system according to claim 10, characterized in that, The fixing mechanism (4) includes: An extension arm (41) extends upward from the upper part of the fixing frame (1), and the upper end of the extension arm (41) is provided with a fixing hole (411); and A locking pin (42) is configured to extend detachably from the inside of the transmission mechanism (2) and extend into the fixing hole (411) in a first direction when the transmission mechanism (2) is in the retracted state.

12. The shock-absorbing vehicle-mounted security inspection system according to claim 11, characterized in that, The fixing mechanism (4) also includes: Mounting base (43) is mounted on the bottom of the transmission surface away from the transmission mechanism (2), and the locking pin (42) is movably mounted on the mounting base (43).

13. The shock-absorbing vehicle-mounted security inspection system according to any one of claims 10-12, characterized in that, It also includes a flipping mechanism (6) configured to drive the transmission mechanism (2) to rotate between the folded state and the unfolded state.

14. The shock-absorbing vehicle-mounted security inspection system according to claim 13, characterized in that, The flipping mechanism (6) includes: A drive assembly (61) is hinged between the fixed frame (1) and the transmission mechanism (2) to drive the transmission mechanism (2) to rotate about the axis in the first direction; The limiting component (62) is configured to limit the transmission mechanism (2) in the unfolded or retracted state.

15. The shock-absorbing vehicle-mounted security inspection system according to claim 14, characterized in that, The limiting component (62) includes: Two first limiting members (621) are installed on the inner side of the fixing frame (1) and extend towards each other in a first direction, such that when the transmission mechanism (2) is in the unfolded state, they respectively abut against the first end of the transmission mechanism (2) near the fixing frame (1) to prevent the transmission mechanism (2) from unfolding further away from the fixing frame (1).

16. The shock-absorbing vehicle-mounted security inspection system according to claim 15, characterized in that, The first end of the transmission mechanism (2) is provided with a curved portion (24) extending in opposite directions in a first direction. The curved portion (24) abuts against the first limiting member (621) when the transmission mechanism (2) is in the unfolded state.

17. The shock-absorbing vehicle-mounted security inspection system according to claim 15, characterized in that, The limiting component (62) further includes a second limiting member (622), the second limiting member (622) comprising: Two limiting blocks (6221) are installed on the inner side of the fixing frame (1) and protrude towards each other in a first direction; and Two extension rods (6222) extend from the first end of the transmission mechanism (2) away from the transmission mechanism (2) such that they abut against the limiting block (6221) when the transmission mechanism (2) is in the retracted state, so as to prevent the transmission mechanism (2) from retracting further close to the fixing frame (1).

18. The shock-absorbing vehicle-mounted security inspection system according to claim 17, characterized in that, It also includes a conveyor belt (23) configured to move around the first transmission component (21) and the second transmission component (22) to transport items; The locking mechanism (3) is further configured to tension the conveyor belt (23) in the extended state.

19. The shock-absorbing vehicle-mounted security inspection system according to claim 17, characterized in that, When the second transmission component (22) is in the extended state, the first transmission surface of the first transmission component (21) is flush with the second transmission surface of the second transmission component (22).

20. The shock-absorbing vehicle-mounted security inspection system according to claim 17, characterized in that, It also includes a guiding mechanism (5), which comprises: A slide rail (51) is mounted on the outside of the second transmission assembly (22); A chute (52) is disposed on the inner side of the first transmission component (21) and slides in cooperation with the slide rail (51) to guide the slide rail (51) to slide.

21. The shock-absorbing vehicle-mounted security inspection system according to claim 20, characterized in that, The slide rail (51) forms an angle with the second direction. The angle is set such that as the second transmission component (22) slides away from the first transmission component (21), the height of the second transmission component (22) gradually increases, and when the second transmission component (22) slides to the extended state, the second transmission surface of the second transmission component (22) is flush with the first transmission surface of the first transmission component (21).

22. The shock-absorbing vehicle-mounted security inspection system according to claim 18, characterized in that, The cam assembly (31) is rotatably mounted on the second transmission assembly (22) and is configured to gradually press against the first transmission assembly (21) by rotation to prevent the second transmission assembly (22) from sliding toward the first transmission assembly (21) and to tension the conveyor belt (23) surrounding the first transmission assembly (21) and the second transmission assembly (22).

23. The shock-absorbing vehicle-mounted security inspection system according to claim 22, characterized in that, The cam assembly (31) is mounted on the lower part of the second transmission assembly (22) and abuts against the positioning rod (32) on the lower part of the second transmission assembly (22) in the extended state.

24. The shock-absorbing vehicle-mounted security inspection system according to claim 23, characterized in that, The cam portion (312) includes: The arc-shaped contact surface (3121) is configured to gradually press against the positioning rod (32) as the turntable (311) rotates in the pressing direction; and A flat contact surface (3122) extends flatly from the downstream end of the arcuate contact surface (3121) in the abutting direction, such that after the cam portion (312) passes the downstream end in the abutting direction, the flat contact surface (3122) contacts the positioning rod (32) in parallel to prevent the cam assembly (31) from rotating relative to the positioning rod (32).

25. The shock-absorbing vehicle-mounted security inspection system according to claim 24, characterized in that, When the cam portion (312) is at its lowest position, the cam portion (312) is generally located below the positioning rod (32) to allow the cam portion (312) to move past the lower end of the positioning rod (32).

26. The shock-absorbing vehicle-mounted security inspection system according to claim 23, characterized in that, The cam assembly also includes a rocker arm (313) mounted on the turntable (311) to drive the turntable (311) to rotate, so that the cam portion (312) gradually presses against the positioning rod (32).

27. The shock-absorbing vehicle-mounted security inspection system according to any one of claims 18-26, characterized in that, The locking mechanism (3) further includes a locking component (33) configured to prevent the cam assembly (31) from rotating relative to the positioning rod (32) in the extended state.

28. The shock-absorbing vehicle-mounted security inspection system according to claim 27, characterized in that, The locking component (33) includes: Two locking holes (331) are respectively provided on the positioning rod (32) and the rocker arm (313); and A locking element (332) is movably inserted into the locking hole (331) to prevent the rocker arm (313) from rotating relative to the positioning rod (32).

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