Container bottom lock head detection device based on machine vision

Abstract

The utility model relates to a container bottom lock head detection device based on machine vision. The container bottom lock head detection device comprises a camera and a camera protection box, the camera collects a visual picture of the lock head and transmits the visual picture to the PLC industrial personal computer, and the visual picture is transmitted to the server through the PLC industrial personal computer to detect the disassembly state of the lock head; the protection box comprises a box body, a top cover and a knob; a first clamping groove is formed in the inner wall of the box body, and a damper cylinder body, a damper piston rod and a buffer spring are installed in the box body and used for damping a camera and preventing the camera from being damaged; a locking block is mounted at the bottom of the top cover, and a push plate is mounted at one end of the locking block; the knob is mounted at the top of the top cover; a guide block is mounted at the lower end of the knob; the guide block is controlled to rotate through the knob, the push plate can be pushed to drive the locking block to be inserted into the first clamping groove, rapid installation of the top cover on the box body is achieved, or the push plate is controlled to be separated from the locking block, the locking block is reset to be separated from the first clamping groove, and rapid disassembly of the top cover is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to container transfer platform technical field especially a kind of container box bottom lock head detection device applicable to container transfer platform. BACKGROUND

[0002] Ship will be loaded and unloaded container on transfer platform after entering wharf, container will be placed lock head on bottom to connect and fix between container. After placing container to transfer platform, lock head of four corners of container is disassembled by on-site wharf worker, next operation is carried out only after ensuring that lock head is completely disassembled. If next operation is carried out due to negligence, there is lock head not disassembled, then safety production event can occur. At present, technical problem of checking whether there is lock head on container box bottom in market is solved by installing monitoring equipment for staff to inspect video picture.

[0003] For example, Chinese patent publication No. CN220618199U discloses a kind of transfer platform lock head detection equipment, and its specific content is: including the bracket of being located at two transfer platforms front and back sides, four brackets are close to the side of transfer platform and are each provided with recess, recess is provided with mounting groove in, the mounting groove in two brackets between two transfer platforms is connected together, five detection industrial cameras are fixed in each mounting groove, ship enters wharf after and will be loaded and unloaded container on sea side shore crane transfer platform, when container is hoisted to transfer platform, industrial camera in mounting groove is used to shoot container bottom, whether there is residual lock head on container bottom is detected. This detection equipment has the following technical problems:

[0004] Container is placed on transfer platform, and violent shock occurs in transfer platform, camera is prone to damage after long-term shock. SUMMARY

[0005] To solve the problem of camera damage caused by frequent vibration of transfer platform in the above background art, the utility model provides the following technical solutions:

[0006] A kind of container box bottom lock head detection device based on machine vision, the detection device is installed on support frame, and the support frame is located at the side of transfer platform;PLC industrial computer is configured in the side of the transfer platform, and the PLC industrial computer communicates with server;The detection device includes camera and protective box for protecting the camera;Wherein,

[0007] The camera is used to collect the visual picture of container box bottom lock head, and is transmitted to the PLC industrial computer, and is transmitted to server by PLC industrial computer to detect the disassembly state of lock head;

[0008] The protective box includes box body, top cover and knob;Wherein,

[0009] A first clamping groove is formed in the inner wall of the box, and the camera, a damper cylinder, a damper piston rod and a buffer spring for damping the camera are installed in the box;

[0010] A locking block for locking the top cover in cooperation with the first clamping groove is installed at the bottom of the top cover, and a push plate for pushing the locking block is installed at one end of the locking block;

[0011] The knob is installed at the top of the top cover, and a guide block for pushing the locking block in cooperation with the push plate is installed at the lower end of the knob.

[0012] In some embodiments of the present application, a square clamping groove can be formed in the bottom of the camera, a square clamping block is installed at the upper end of the damper piston rod, and the square clamping block is installed in the square clamping groove of the camera to assemble the camera on the damper piston rod.

[0013] In some embodiments of the present application, a sliding groove can be formed in the middle of the rod body of the damper piston rod, and a partition plate for limiting the buffer spring is sleeved on the middle of the rod body of the damper piston rod; the partition plate can be designed in an annular shape, and a sliding block that slides in the groove cavity of the sliding groove can be installed on the inner annular wall of the partition plate to achieve the sliding assembly of the partition plate on the damper piston rod. By setting the partition plate, the camera can be prevented from contacting the buffer spring, and the buffer spring can be prevented from wearing on the camera, thereby protecting the camera.

[0014] In some embodiments of the present application, the box can be installed at the bottom of the support frame through a support; a signal lamp for indicating the disassembly state of the lock head can be installed at the top of the support frame, and the PLC industrial computer controls the signal lamp to be bright or dark according to the detection result fed back by the server to clearly indicate the work personnel whether the lock head at the bottom of the container placed on the transfer platform has been disassembled, thereby facilitating the work personnel to check.

[0015] In some embodiments of the present application, a heat dissipation groove can be formed in the side wall of the box to timely discharge the heat generated by the camera during operation and ensure that the camera can operate safely for a long time.

[0016] In some embodiments of the present application, a limiting block can be installed in the middle of the locking block, and a limiting box for limiting the limiting block is installed at the bottom of the top cover, a reset spring for controlling the reset of the limiting block is installed in the limiting box, and the reset spring is used to control the locking block to be automatically reset after getting rid of the pushing force of the push plate, so that the locking block is separated from the first clamping groove, and the top cover can be disassembled from the box.

[0017] In some embodiments of the present application, the guide block can be designed as a rectangular block, and the two long sides of the guide block are designed as arc shapes, and a second clamping groove for limiting the push plate is arranged on the two short sides of the guide block. When the knob is rotated to control the rotation of the guide block, the rotation of the guide block can push one end of the push plate to slide from the arc-shaped long side of the guide block to the groove cavity of the second clamping groove, during which the other end of the push plate moves towards the locking block, thereby pushing the locking block to move towards the first clamping groove and finally inserting into the groove cavity of the first clamping groove, thereby locking the top cover on the box body. When disassembling the top cover, the knob can be continuously rotated to control the rotation of the guide block, so as to push one end of the push plate to slide from the second clamping groove of the guide block to the arc-shaped long side, so that the other end of the push plate moves away from the locking block. At this time, the locking block can move away from the first clamping groove under the elastic restoring force of the return spring, and finally disengage from the groove cavity of the first clamping groove, thereby releasing the locking of the top cover on the box body, and the top cover can be removed from the box body for maintenance of the camera in the box body.

[0018] In some embodiments of the present application, a rubber cushion for protecting the camera can be installed at the bottom of the top cover to prevent the camera from colliding with the top cover and causing bumps.

[0019] In some embodiments of the present application, the camera includes a plurality of cameras, and the PLC industrial computer is connected through a first switch to reduce the occupation of PLC industrial computer interface resources; the server can be connected to a hard disk recorder through a second switch, and the hard disk recorder includes a plurality of hard disk recorders for storing visual pictures collected by the cameras.

[0020] In some embodiments of the present application, the server, the second switch and the hard disk recorder can be deployed on the side of the machine room; the PLC industrial computer is configured to communicate with the server wirelessly through a wireless transmission module to interact data.

[0021] Compared with the prior art, the beneficial effects of the present application mainly include:

[0022] I. The camera installed on the support frame is used to take pictures of the lock head at the bottom of the container box, and the PLC industrial computer and the server can realize automatic detection of whether the lock head is disassembled, and the setting of the signal lamp can directly view the actual disassembly of the lock head.

[0023] II. The camera is damped by the cooperation of the damper cylinder, the damper piston rod and the buffer spring, so that the camera can be prevented from being damaged due to vibration.

[0024] III. The guide block is controlled to rotate through the knob, the push plate is pushed to drive the locking block to be inserted into the slot cavity of the first clamping groove, quick installation of the top cover on the box body is realized, or the push plate is pushed to move away from the locking block, the locking block is reset, the first clamping groove is separated, and quick disassembly of the top cover is realized. After the top cover is disassembled, the camera in the box body can be conveniently overhauled. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole structure schematic view of the utility model;

[0026] Figure 2 It is a structure schematic view of the detection device of the utility model;

[0027] Figure 3 It is a structure schematic view of the camera of the utility model;

[0028] Figure 4 It is a structure schematic view of the protective box of the utility model;

[0029] Figure 5 It is Figure 4 the enlarged view of A of the utility model;

[0030] Figure 6 It is a structure schematic view of the partition plate of the utility model;

[0031] Figure 7 It is a structure schematic view of the top cover of the utility model;

[0032] Figure 8 It is a system architecture view of the detection system of the utility model.

[0033] In the drawings, the component names represented by each reference sign are listed as follows:

[0034] 10, transfer platform; 11, support frame; 12, signal lamp; 30, PLC industrial computer; 31, first switch; 40, server; 41, second switch; 42, hard disk video recorder;

[0035] 001, detection device;

[0036] 20, camera; 21, square clamping groove; 100, protective box; 110, box body; 111, support; 112, heat dissipation groove; 113, first clamping groove; 120, damper cylinder; 121, damper piston rod; 122, sliding groove; 123, square clamping block; 130, buffer spring; 140, partition plate; 141, sliding block;

[0037] 200, top cover; 210, rubber cushion; 220, locking block; 221, limiting block; 230, limiting box; 231, return spring; 240, push plate; 241, cavity; 242, T-shaped block; 250, knob; 251, guide block; 252, second clamping groove. DETAILED DESCRIPTION

[0038] The preferred specific embodiments implementing the present application are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0039] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed or operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0040] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral molding, or internal communication of components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the description of the embodiments, the specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0042] In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0043] Please refer to Figures 1-8 The present application provides a container bottom lock detection device based on machine vision.

[0044] Support frame 11 is installed on the side of transfer platform 10. The upper end of support frame 11 is provided with a plurality of signal lamps 12, and each signal lamp 12 is connected with a detection device 001. Detection device 001 comprises a camera 20, and 20 cameras 20 can be installed on the lower end of support frame 11. The bottom of each camera 20 is provided with a square clamping groove 21. PLC industrial computer 30 and first switch 31 are installed on the side of transfer platform 10. PLC industrial computer 30 communicates with server 40 wirelessly through a wireless transmission module. Server 40 is connected with second switch 41, and data interaction is carried out between server 40 and hard disk recorder 42 through second switch 41.

[0045] Signal lamp 12, PLC industrial computer 30, first switch 31, server 40, second switch 41, hard disk recorder 42 and camera 20 constitute a detection system for detecting the lock head at the bottom of the container.

[0046] Among them, server 40 is deployed on the side of the machine room, which is used to run image recognition algorithm and business software; hard disk recorder 42 is deployed on the side of the machine room, which is used to store the visual picture collected by front-end camera 20; second switch 41 is used for communication between devices on the side of the machine room. Camera 20 is used for visual picture collection; first switch 31 is used for communication between devices on the side of transfer platform, and the visual picture data collected by camera 20 is sent to PLC industrial computer 30; PLC industrial computer 30 is used to integrate all information of the collection device, and sends relevant information to server 40, or feedbacks through other devices, such as turning on or off signal lamp 12, to indicate whether the lock head at the bottom of the container placed on transfer platform 10 by the user has been disassembled.

[0047] Detection device 001 is installed on the lower end of support frame 11. Detection device 001 comprises a protection box 100 for protecting camera 20. Protection box 100 comprises a box body 110. Bracket 111 is fixedly installed on the bottom of box body 110 for supporting box body 110, and bracket 111 is fixedly welded on the bottom of support frame 11. Heat dissipation groove 112 is formed in the middle side wall of box body 110. First clamping groove 113 is formed in the inner wall of box body 110. When locking block 220 is inserted into the groove cavity of first clamping groove 113, top cover 200 is locked.

[0048] The inside of the box body 110 is mounted with a damper cylinder 120 for damping the camera 20, a damper piston rod 121, and a buffer spring 130. The upper end of the damper piston rod 121 is fixedly mounted with a square clamping block 123 which is mounted in a square clamping groove 21 opened at the bottom of the camera 20 to realize the fixed assembly of the camera 20 on the damper piston rod 121. The middle part of the rod body of the damper piston rod 121 is processed with a sliding groove 122. The middle part of the rod body of the damper piston rod 121 is sleeved with a partition plate 140 for limiting the buffer spring 130. Through the arrangement of the partition plate 140, the bottom of the camera 20 is prevented from being worn by the buffer spring 130. The partition plate 140 is annular, and the inner ring wall is mounted with a sliding block 141 which slides in the groove cavity of the sliding groove 122.

[0049] The upper end of the protective box 100 is mounted with a top cover 200 for closing the protective box 100. The bottom of the top cover 200 is fixedly mounted with a plurality of rubber cushions 210 for protecting the camera 20. The rubber cushions 210 abut against the top end of the camera 20. The height of the rubber cushions 210 is higher than the height of the guide block 251, the push plate 240, and the limiting box 230, so as to prevent the top of the camera 20 from being worn by the guide block 251, the push plate 240, and the limiting box 230.

[0050] The bottom of the top cover 200 is mounted with a plurality of locking blocks 220 for locking the top cover 200 in cooperation with the first clamping groove 113. The middle part of the locking block 220 is fixedly mounted with a limiting block 221. The bottom of the top cover 200 is mounted with a plurality of limiting boxes 230 for limiting the limiting block 221. The inside of the limiting box 230 is mounted with a return spring 231 for controlling the return of the limiting block 221. When the push plate 240 moves away from the locking block 220, the return spring 231 pushes the limiting block 221, so that one end of the locking block 220 moves away from the groove cavity of the first clamping groove 113, and the top cover 200 is disassembled for the maintenance of the camera 20. One end of the locking block 220 is mounted with a push plate 240 for pushing the locking block 220. The push plate 240 is symmetrically arranged at the left half and the right half of the top cover 200. The middle part of the push plate 240 is opened with a groove cavity 241. The bottom of the top cover 200 is mounted with a T-shaped block body 242 for limiting the push plate 240. The T-shaped block body 242 is slidingly assembled in the groove cavity 241 to limit the push plate 240 to move left and right only.

[0051] The top of the top cover 200 is mounted with a knob 250. The lower end of the knob 250 is mounted with a guide block 251 for pushing the locking block 220 in cooperation with the push plate 240. The guide block 251 is a rectangular block. The two longer sides of the guide block 251 are processed into arc shapes to form arc long edges. The two short sides of the guide block 251 are both opened with a second clamping groove 252 for limiting the push plate 240.

[0052] The camera 20 installed at the lower end of the support frame 11 is used for taking pictures of the lock head of the bottom of the container, and cooperates with the PLC industrial computer 30, the first switch 31, the server 40, the second switch 41 and the hard disk recorder 42 to detect whether the lock head is disassembled, and the setting of the signal lamp 12 can intuitively view the actual disassembly of the lock head.

[0053] When the container is hoisted to the transfer platform 10 to cause the support frame 11 to vibrate, the damping of the damper cylinder 120, the damper piston rod 121 and the buffer spring 130 can avoid damage to the camera 20. The rotation knob 250 controls the guide block 251 to rotate 90°, so that one end of the push plate 240 slides from the arc long side of the guide block 251 to the slot cavity of the second clamping groove 252, and during this period, the other end of the push plate 240 moves towards the locking block 220, pushes the locking block 220, and makes the locking block 220 move towards the first clamping groove 113 and finally insert into the slot cavity of the first clamping groove 113. At this time, the top cover 200 is locked on the box body 110, and the quick installation of the top cover 200 is realized.

[0054] When the top cover 200 is disassembled, the rotation knob 250 can be rotated 90° to control the guide block 251 to rotate, so that one end of the push plate 240 is separated from the slot cavity of the second clamping groove 252 of the guide block 251 and slides to the arc long side of the guide block 251, and during this period, the other end of the push plate 240 moves away from the locking block 220. At this time, the locking block 220 can move away from the first clamping groove 113 under the elastic restoring force of the reset spring 231, and finally leave the slot cavity of the first clamping groove 113 to release the locking state of the top cover 200. At this time, the top cover 200 can be taken off from the box body 110 to facilitate the maintenance work of the camera 20 in the box body 110.

[0055] Based on the above content and the drawings, those skilled in the art can understand and implement the present application. In addition, any non-creative modification of the present application by those skilled in the art without creative labor still falls within the protection scope of the present application.

Claims

1. A container bottom lock detection device based on machine vision, characterized in that: The detection device (001) is installed on the support frame (11), which is located on the side of the transfer platform (10); a PLC industrial computer (30) is configured on the side of the transfer platform (10), and the PLC industrial computer (30) communicates with the server (40); The detection device (001) includes: The camera (20) is used to capture the visual image of the lock head at the bottom of the container and transmit it to the PLC industrial control computer (30). The PLC industrial control computer (30) transmits the image to the server to detect the lock head disassembly status. A protective case (100) for protecting the camera (20) includes: The housing (110) has a first slot (113) on its inner wall. The camera (20) and a damper cylinder (120), a damper piston rod (121) and a buffer spring (130) for shock absorption of the camera (20) are installed inside the housing (110). The top cover (200) has a locking block (220) installed at its bottom for locking the top cover (200) in conjunction with the first slot (113). One end of the locking block (220) is equipped with a push plate (240) for pushing the locking block (220). A knob (250) is mounted on the top of the top cover (200), and a guide block (251) is mounted on the lower end of the knob (250) for cooperating with the push plate (240) to push the locking block (220).

2. The container bottom lock detection device based on machine vision according to claim 1, characterized in that: The bottom of the camera (20) is provided with a square card slot (21); A square locking block (123) is installed at the upper end of the damper piston rod (121), and the square locking block (123) is installed in the square locking slot (21) of the camera (20).

3. The container bottom lock detection device based on machine vision according to claim 1, characterized in that: The damper piston rod (121) has a groove (122) in the middle of its rod body. A partition (140) for limiting the buffer spring (130) is sleeved in the middle of the damper piston rod (121). The partition (140) is annular, and a slider (141) is installed on its inner ring wall and slidably assembled in the groove cavity of the groove (122).

4. The container bottom lock detection device based on machine vision according to claim 1, characterized in that: The housing (110) is mounted on the bottom of the support frame (11) via a bracket (111); A signal light (12) for indicating the lock head disassembly status is installed on the top of the support frame (11). The PLC industrial control computer (30) controls the signal light (12) to turn on and off according to the detection results fed back by the server (40).

5. The container bottom lock detection device based on machine vision according to claim 1, characterized in that: The side wall of the housing (110) is provided with heat dissipation grooves (112).

6. The container bottom lock detection device based on machine vision according to claim 1, characterized in that: A limit block (221) is installed in the middle of the locking block (220), and a limit box (230) for limiting the limit block (221) is installed at the bottom of the top cover (200). A reset spring (231) for controlling the reset of the limit block (221) is installed inside the limit box (230).

7. The container bottom lock detection device based on machine vision according to claim 6, characterized in that: The guide block (251) is a rectangular block, and the long sides of the guide block (251) are arc-shaped. A second slot (252) for limiting the push plate (240) is provided on the short sides of the guide block (251). The knob (250) controls the rotation of the guide block (251), pushing one end of the push plate (240) to slide from the arc-shaped long side of the guide block (251) to the cavity of the second slot (252), causing the other end of the push plate (240) to move towards the locking block (220), pushing the locking block (220) to insert into the first slot (113), locking the top cover (200) onto the housing (110); or, the knob (250) controls the rotation of the guide block (251), pushing one end of the push plate (240) to slide from the second slot (252) of the guide block (251) to the arc-shaped long side, causing the other end of the push plate (240) to move away from the locking block (220), and the locking block (220) to disengage from the first slot (113) under the action of the return spring (231), releasing the top cover (200) from the housing (110).

8. The container bottom lock detection device based on machine vision according to claim 1, characterized in that: A rubber pad (210) for protecting the camera (20) is installed at the bottom of the top cover (200).

9. The container bottom lock detection device based on machine vision according to any one of claims 1 to 8, characterized in that: The camera (20) includes multiple units, which are connected to the PLC industrial computer (30) through the first switch (31). The server (40) is connected to the hard disk video recorder (42) via the second switch (41). The hard disk video recorder (42) includes multiple units and is used to store the visual images captured by the camera (20).

10. The container bottom lock detection device based on machine vision according to claim 9, characterized in that: The server (40), the second switch (41), and the hard disk recorder (42) are deployed on the computer room side; The PLC industrial control computer (30) communicates wirelessly with the server (40) through a wireless transmission module to exchange data.

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