Turnover conveying device and vehicle-mounted security inspection system

Abstract

This invention discloses a flip-type transmission device and a vehicle-mounted security inspection system, including a fixed frame, a transmission mechanism, and a fixing mechanism. One end of the transmission mechanism is rotatably mounted on the fixed frame about an axis extending in a first direction, so as to rotate away from the fixed frame to an unfolded state suitable for transporting items or towards the fixed frame to a retracted state. The fixing mechanism is mounted on the transmission mechanism and is configured to cooperate with the fixed frame to prevent the transmission mechanism, which is in a rotating and retracted state, from rotating relative to the fixed frame towards the unfolded state, thereby keeping the transmission mechanism in the retracted state. The fixing mechanism and the transmission mechanism can adjust the transmission device to the unfolded or retracted state, reducing the limitation of the usage space, and the adjustment operation of the transmission device is convenient, improving the convenience of storage and adjustment of the transmission device.

Description

Technical Field

[0001] At least one embodiment of the present invention relates to a flip-type transmission device, and more particularly to a flip-type transmission device suitable for installation on a vehicle, and an on-board security inspection system including such a flip-type transmission device. Background Technology

[0002] Driven by public safety needs, large public venues such as large exhibitions, temporary highway checkpoints, border crossings, and stadiums frequently utilize vehicle-mounted security screening systems to conduct non-intrusive inspections of targets such as suitcases or packages. These systems employ vehicle-mounted X-ray inspection equipment to check for prohibited items such as drugs and explosives. In X-ray inspection equipment, a conveyor system transports the items to be inspected (e.g., suitcases or packages) into the inspection channel of the security screening device, where they are scanned using X-ray scanning. Conveyor systems such as conveyor belts or belt conveyors are used in security screening equipment to transport the items being inspected.

[0003] In environments with limited space, such as carriages or other confined spaces, large tracked conveyors are not suitable for use due to the limited space available for the conveying device. Furthermore, while automated control conveyors have been proposed, they require power to operate and adjust; however, the length adjustability of such devices is poor, and their space utilization needs improvement. Summary of the Invention

[0004] To address the existing technical problems, the present invention provides a flip-type transmission device, which at least partially solves the above-mentioned technical problems. By setting a fixing mechanism and a transmission mechanism, the transmission device can be adjusted to an unfolded state or a retracted state, and the working state of the transmission device can be easily adjusted.

[0005] This invention provides a flip-type transmission device, comprising:

[0006] Fixture;

[0007] 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.

[0008] 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.

[0009] According to embodiments of this disclosure, the fixing mechanism includes:

[0010] 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

[0011] 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.

[0012] According to embodiments of this disclosure, the fixing mechanism further includes:

[0013] 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.

[0014] 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.

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

[0016] 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;

[0017] A limiting component is configured to limit the transmission mechanism in either an expanded or retracted state.

[0018] According to embodiments of this disclosure, the limiting component includes:

[0019] 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.

[0020] 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.

[0021] According to embodiments of this disclosure, the limiting component further includes a second limiting member, the second limiting member comprising:

[0022] Two limiting blocks are installed on the inner side of the fixing frame and protrude towards each other in a first direction; and

[0023] 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.

[0024] According to embodiments of this disclosure, the transmission mechanism includes:

[0025] The first transmission component is configured to be rotatably mounted on the mounting frame about an axis in a first direction;

[0026] 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.

[0027] 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.

[0028] 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;

[0029] The locking mechanism is further configured to tension the conveyor belt in the extended state.

[0030] 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.

[0031] According to embodiments of this disclosure, a guiding mechanism is also included, the guiding mechanism comprising:

[0032] A slide rail is mounted on the outside of the second transmission component;

[0033] A chute is disposed inside the first transmission component and slides in cooperation with the slide rail to guide the slide rail to slide.

[0034] 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.

[0035] According to embodiments of this disclosure, the locking mechanism includes:

[0036] 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.

[0037] According to embodiments of this disclosure, the locking mechanism further includes a positioning rod extending downward from the first transmission component.

[0038] 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.

[0039] According to embodiments of this disclosure, the cam assembly includes:

[0040] A turntable, rotatably mounted on the lower part of the second transmission assembly; and

[0041] 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.

[0042] According to an embodiment of this disclosure, the cam portion includes:

[0043] The arc-shaped contact surface is configured to gradually press against the positioning rod as the turntable rotates in the pressing direction; and

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] According to embodiments of this disclosure, the locking component includes:

[0049] Two locking holes are respectively provided on the positioning rod and the rocker arm; and

[0050] A locking element is movably inserted into the locking hole to prevent the rocker arm from rotating relative to the positioning rod.

[0051] According to embodiments of this disclosure, the locking element includes a locking pin or a locking screw.

[0052] The present invention also provides a vehicle-mounted security inspection system, comprising:

[0053] A vehicle, including a chassis and a cargo box, the cargo box including a rear door at the rear and a front door at the front;

[0054] A scanning mechanism, wherein a security inspection channel extending along a first direction is provided within the scanning mechanism;

[0055] An intermediate conveying device is installed in the security check channel to transport the item to be tested in the second direction;

[0056] As described above, the flip-type transmission device is installed at the entrance end of the scanning mechanism to transport the test item to the intermediate transmission device. The transmission mechanism rotates to an unfolded state away from the fixed frame, and when the other end of the transmission mechanism extends along a second direction, it extends at least partially out of the carriage from the rear door or the front door.

[0057] According to the flip-type conveying device provided by the present invention, in the storage state, the conveying mechanism is in a folded state. The fixing mechanism cooperates with the fixing frame to prevent the conveying mechanism, which is rotating and folding, from rotating relative to the fixing frame toward an unfolded state, thereby keeping the conveying mechanism in the folded state, reducing space occupancy and improving the applicability of the conveying device. When in use, the restriction of the fixing mechanism on the conveying mechanism is removed, and the conveying mechanism is rotated away from the fixing frame, so that the conveying mechanism is in an unfolded state to transport items. It is easy to adjust the conveying device to the unfolded or folded state, reducing the limitation of the usage site, and the adjustment operation of the conveying device is convenient, improving the convenience of storage and adjustment of the conveying device. Attached Figure Description

[0058] The above and other objects, features and advantages of this application will become clearer from the following description of embodiments with reference to the accompanying drawings, in which:

[0059] Figure 1 This is a perspective view of the flip-type transmission device in a retracted state according to an embodiment of the present invention;

[0060] Figure 2 This is a partially enlarged view of the fixing mechanism of the flip-type transmission device according to an embodiment of the present invention;

[0061] Figure 3This is a perspective view of the flip-type transmission device in an unfolded state according to an embodiment of the present invention;

[0062] Figure 4 This is a partial enlarged view of the first limiting member of the flip-type transmission device according to an embodiment of the present invention;

[0063] Figure 5 This is a partially enlarged view of the second limiting member of the flip-type transmission device according to an embodiment of the present invention;

[0064] Figure 6 This is a schematic diagram of the retracted state of the transmission mechanism of the flip-type transmission device according to an embodiment of the present invention;

[0065] Figure 7 This is a schematic diagram of the extension process of the transmission mechanism of the flip-type transmission device according to an embodiment of the present invention;

[0066] Figure 8 This is a schematic diagram of the extended state of the transmission mechanism of the flip-type transmission device according to an embodiment of the present invention;

[0067] Figure 9 This is a schematic diagram of the locking mechanism of the flip-type transmission device according to an embodiment of the present invention;

[0068] Figure 10 This is a schematic diagram of the locking mechanism of the flip-type transmission device rotating according to an embodiment of the present invention;

[0069] Figure 11 This is a schematic diagram of the locking mechanism of the flip-type transmission device according to an embodiment of the present invention in a clamped state;

[0070] Figure 12 This is a partially enlarged view of the locking mechanism of the flip-type transmission device according to an embodiment of the present invention; and

[0071] Figure 13 This is a schematic diagram of an on-board security inspection system according to an embodiment of the present invention.

[0072] Figure Labels

[0073] 1. Fixture;

[0074] 2. Transmission mechanism;

[0075] 21. First transmission component;

[0076] 22. Second transmission component;

[0077] 23. Conveyor belt;

[0078] 24. Bend;

[0079] 3. Locking mechanism;

[0080] 31. Cam assembly; 311. Turntable; 312. Cam section; 3121. Arc-shaped contact surface; 3122. Flat contact surface; 313. Rocker arm;

[0081] 32. Positioning rod;

[0082] 33. Locking assembly; 331. Locking hole; 332. Locking element;

[0083] 4. Fixed mechanism;

[0084] 41. Extension arm; 411. Fixing hole;

[0085] 42. Locking pin;

[0086] 43. Mounting bracket;

[0087] 5. Guiding mechanism;

[0088] 51. Slide rail;

[0089] 52. Slide groove;

[0090] 6. Tilting mechanism;

[0091] 61. Driver components;

[0092] 62. Limiting component; 621. First limiting member; 622. Second limiting member; 6221. Limiting block; 6222. Extension rod;

[0093] 100. Vehicle; 101. Chassis; 102. Carriage; 103. Rear door; 104. Front door; 105. Scanning mechanism; 106. Security checkpoint; 107. Intermediate conveyor. Detailed Implementation

[0094] 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.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] This invention provides a flip-type transmission device, such as... Figure 1 and Figure 2 As shown, it includes a fixed frame 1, a transmission mechanism 2, and a fixing mechanism 4.

[0099] For ease of description, such as Figure 1 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.

[0100] like Figure 1 and Figure 3 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.

[0101] like Figure 1 and Figure 2 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.

[0102] According to the flip-type transmission device provided in this embodiment, in the storage state, the transmission mechanism 2 is in a folded state. The fixing mechanism 4 cooperates with the fixing frame 1 to prevent the transmission mechanism 2, which is rotating and folding, from rotating relative to the fixing frame 1 towards an unfolded state, so as to keep the transmission mechanism 2 in the folded state, reduce the space occupation rate, and improve the applicability of the transmission device. 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 the 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 to the unfolded state or the folded state, reducing the limitation of the usage site. Moreover, the adjustment operation of the transmission device is convenient, improving the convenience of storage and adjustment of the transmission device.

[0103] In one exemplary embodiment, such as Figure 1 and Figure 2 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.

[0104] In one exemplary embodiment, such as Figure 1 and Figure 2 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.

[0105] 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 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. 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 remains in a vertically retracted state, improving the stability of the transmission mechanism 2 in the retracted state, reducing the space occupation rate, and improving the applicability of the transmission device.

[0106] In one exemplary embodiment, such as Figure 3 As shown, the transmission device 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.

[0107] In one exemplary embodiment, such as Figure 3 As 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.

[0108] In one exemplary embodiment, such as Figure 3 and Figure 4 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.

[0109] In one exemplary embodiment, such as Figure 4 and Figure 6 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 extended state, so as to increase the stability and firmness of the contact between the transmission mechanism and the first limiting member. In one embodiment, the first limiting member includes a protrusion extending from the extension arm 41 toward the transmission mechanism, for example, including a nut or a blocking block welded to the extension arm.

[0110] According to an embodiment of this disclosure, when using the transmission device, 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.

[0111] In one exemplary embodiment, such as Figure 5As 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.

[0112] According to the embodiments of this disclosure, after the transmission device 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 adjustment operation of the transmission device is convenient, improving the convenience of storage and adjustment of the transmission device.

[0113] In one exemplary embodiment, such as Figure 6 As shown, the transmission mechanism 2 includes a first transmission component 21, a second transmission component 22, and a locking mechanism 3.

[0114] For ease of description, such as Figure 6 , Figure 7 and Figure 8 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 transportation and storage; in the extended state, the second transmission component 22 slides outwards away from the first transmission component 21 to transport items.

[0115] like Figure 8 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.

[0116] 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.

[0117] In one exemplary embodiment, such as Figure 6 and Figure 7 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.

[0118] In one exemplary embodiment, such as Figure 8 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.

[0119] 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.

[0120] In one exemplary embodiment, such as Figure 8As shown, the flip-type conveyor also includes a conveyor belt 23 configured to move around the first conveyor assembly 21 and the second conveyor assembly 22 to convey items. When the second conveyor assembly 22 is in the extended state, the first and second conveyor surfaces form the conveying contact surfaces for the conveyed objects. The conveyor belt 23 moves around the first and second conveyor assemblies 21 and 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.

[0121] In one exemplary embodiment, such as Figure 7 and Figure 8 As shown, the flip-type transmission device also includes a guide 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.

[0122] In one exemplary embodiment, such as Figure 7 and Figure 8 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.

[0123] 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.

[0124] In one exemplary embodiment, such as Figure 8 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.

[0125] Specifically, such as Figure 9 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.

[0126] In one exemplary embodiment, such as Figure 9 and Figure 10 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.

[0127] Specifically, such as Figure 10 and Figure 11 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.

[0128] In one exemplary embodiment, such as Figure 10 and Figure 11 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.

[0129] 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.

[0130] In one exemplary embodiment, such as Figure 10 and Figure 11 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.

[0131] 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.

[0132] 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.

[0133] In one exemplary embodiment, such as Figure 10 and Figure 12 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.

[0134] In one exemplary embodiment, such as Figure 12 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.

[0135] In one exemplary embodiment, as shown in the figure, the locking assembly 33 includes two locking holes 331 and a locking member 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 member 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 member 332 includes a locking pin 42 or a locking screw.

[0136] 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.

[0137] 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.

[0138] In one exemplary embodiment, the present invention also provides an in-vehicle security inspection system, such as... Figure 13 As shown, it includes a vehicle 100, a scanning mechanism 105, and an intermediate conveying device 107.

[0139] The vehicle 100 includes a chassis 101 and a cargo box 102. The cargo box 102 includes a rear door 103 located at the rear and a front door 104 located at the front. A security check lane 106 extending in a first direction is provided inside the scanning mechanism 105. An intermediate conveying device 107 is disposed in the security check lane 106 to convey the item to be tested in a second direction. As described above, a flip-type conveying device is installed at the entrance end of the scanning mechanism 105 to convey the item to be tested to the intermediate conveying device 107. The conveying mechanism 2 rotates to an unfolded state in the direction away from the fixed frame 1, and when the other end of the conveying mechanism 2 extends in the second direction, it extends at least partially out of the cargo box 102 from the rear door 103 or the front door 104.

[0140] According to the flip-type transmission device provided in this embodiment, in the storage state, the transmission mechanism 2 is in a folded state. The fixing mechanism 4 cooperates with the fixing frame 1 to prevent the transmission mechanism 2, which is rotating and folding, from rotating relative to the fixing frame 1 towards an unfolded state, so as to keep the transmission mechanism 2 in the folded state, reduce the space occupation rate, and improve the applicability of the transmission device. 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 the 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 to the unfolded state or the folded state, reducing the limitation of the usage site. Moreover, the adjustment operation of the transmission device is convenient, improving the convenience of storage and adjustment of the transmission device.

[0141] 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 flip-chip transfer apparatus, comprising: include: Fixture; Transmission mechanism, including: 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. The first transmission component and the second transmission component are configured to rotate in a direction away from the fixed frame to an extended state suitable for conveying items or to rotate in a direction closer to the fixed frame to a retracted state. 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. 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.

2. The flip chip device of claim 1, wherein, 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.

3. The flip chip device of claim 2, wherein, 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).

4. The flip-type transmission device according to any one of claims 1-3, 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.

5. The flip-type transmission device according to claim 4, 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.

6. The flip chip device of claim 5, wherein, 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).

7. The flip-type transmission device according to claim 6, 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.

8. The flip-type transmission device according to claim 6, 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).

9. The flip chip package of claim 1, wherein the underfill material is a polymer material. 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.

10. The flip chip package of claim 1, wherein the underfill material is a polymer material. 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).

11. The flip chip device of claim 5, wherein, 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.

12. The flip chip device of claim 11, wherein, 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).

13. The flip chip package of claim 9, wherein the underfill material is a polymer material. The cam assembly (31) 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).

14. The flip-type transmission device according to claim 13, 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).

15. The flip-type transmission device according to claim 14, 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).

16. The flip chip package of claim 13, wherein the underfill material is a polymer material. 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).

17. The flip chip device of any of claims 5-16, wherein, 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.

18. The flip chip transmission device of claim 17, wherein, 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).

19. The flip chip package of claim 13, wherein the underfill material is a polymer material. The locking element (332) includes a locking pin or a locking screw.

20. A vehicle-mounted security inspection system, comprising: The vehicle (100) includes a chassis (101) and a carriage (102), the carriage (102) including a rear door (103) located at the rear and a front door (104) located at the front; A scanning mechanism (105) is provided with a security inspection channel (106) extending in a first direction; An intermediate conveying device (107) is provided in the security check channel (106) to convey the item to be tested in the second direction; The flip-type transfer device according to any one of claims 1-19 is installed at the entrance end of the scanning mechanism (105) to transport the test item to the intermediate transfer device (107), the transfer mechanism (2) is rotated to an unfolded state in a direction away from the fixed frame (1), and the other end of the transfer mechanism (2) extends at least partially from the rear door (103) or the front door (104) of the carriage (102) when it extends along a second direction.

Images