阅读说明：本技术 一种非接触式空箱检测机构 (Non-contact empty box detection mechanism ) 是由 张博湉 于 2019-09-12 设计创作，主要内容包括：本发明涉及一种非接触式空箱检测机构,包括检测箱、检测仪和声波发送器,所述检测仪固定在检测箱上,所述检测箱设有容纳槽,声波发送器通过柔性皮带吊装在检测箱的容纳槽内,所述声波发送器下端通过非接触式磁力定心结构在检测箱内被定心。所述检测仪和声波发送器仍然都设置在检测箱上,同步运动,但是声波发送器通过柔性皮带吊装在检测箱的容纳槽内,通过柔性悬吊的方式将声波发送器与检测仪隔离,最大限度地实现减震,对检测仪的振动干扰大幅减少,能够降低误判率；为了减小声波发送器在运动和检测过程中下端产生的摆动,特别设计了非接触式磁力定心结构,能够为声波发送器下端提供持续的稳定力,达到定心和减震作用,提高声波发送器的稳定性。(The invention relates to a non-contact empty box detection mechanism which comprises a detection box, a detector and a sound wave transmitter, wherein the detector is fixed on the detection box, the detection box is provided with a containing groove, the sound wave transmitter is hoisted in the containing groove of the detection box through a flexible belt, and the lower end of the sound wave transmitter is centered in the detection box through a non-contact magnetic centering structure. The detector and the sound wave transmitter are still arranged on the detection box and move synchronously, but the sound wave transmitter is hung in a containing groove of the detection box through a flexible belt and isolated from the detector through a flexible hanging mode, so that the shock absorption is realized to the maximum extent, the vibration interference on the detector is greatly reduced, and the misjudgment rate can be reduced; in order to reduce the swing of the lower end of the sound wave transmitter in the motion and detection processes, a non-contact magnetic centering structure is specially designed, so that continuous stabilizing force can be provided for the lower end of the sound wave transmitter, the centering and damping effects are achieved, and the stability of the sound wave transmitter is improved.)

1. The utility model provides a non-contact empty case detection mechanism, includes detection case, detector and sound wave and sends the ware, the detector is fixed on the detection case, its characterized in that, the detection case is equipped with the holding tank, the sound wave sends the ware and hoists in the holding tank of detection case through flexible belt, the sound wave sends the ware lower extreme and is passed through non-contact magnetic force centering structure and by centering in the detection case.

2. The non-contact type empty box detection mechanism according to claim 1, wherein a positioning block is arranged at the lower end of the sound generator, magnets are arranged on four outer sides of the positioning block, a positioning frame is correspondingly arranged in the detection box, magnets are also arranged on four inner sides of the positioning frame, the positioning block extends into the positioning frame, the magnets in the positioning block and the magnets in the positioning frame are arranged in a polarity opposite mode, and the positioning block, the positioning frame and the magnets form a non-contact type magnetic centering structure.

3. The non-contact empty box detection mechanism according to claim 2, wherein a soft rubber cushion is further arranged between the lower end face of the acoustic wave transmitter and the lower surface of the detection box accommodating groove and used for assisting in supporting the acoustic wave transmitter.

4. The non-contact empty box detecting mechanism according to claim 1, wherein the detecting mechanism further comprises a swing structure of the detecting box, the swing structure comprises a fixed bottom plate, a first connecting rod plate, a second connecting rod plate, a first connecting rod, a second connecting rod, an electric push rod and a driving motor, the detecting box is provided with a first rotating shaft and a second rotating shaft, the fixed bottom plate is provided with a third rotating shaft, a fourth rotating shaft and a fifth rotating shaft, the first connecting rod plate is provided with a sixth rotating shaft, the first connecting rod plate is fixedly connected with the first connecting rod, the upper end of the first connecting rod is arranged on the first rotating shaft, the lower end of the first connecting rod plate is arranged on the third rotating shaft, the second connecting rod plate is fixedly connected with the second connecting rod, the upper end of the second connecting rod is arranged on the second rotating shaft, the lower end of the second connecting rod plate is arranged on the fourth rotating shaft, the electric push rod upper end sets up in the sixth pivot, and the lower extreme sets up in the fifth pivot, first pivot, second pivot, third pivot and fourth pivot form the parallelogram, driving motor is used for driving electric push rod flexible, electric push rod promotes the detection case through first connecting rod board, second connecting rod board, head rod and second connecting rod and removes to make the detection case remain the horizontality throughout.

5. The non-contact empty box detection mechanism according to claim 4, wherein the electric push rod is further provided with a manual unlocking structure.

6. the non-contact empty box detection mechanism according to claim 4, wherein an upper limit detection feeler lever and a lower limit detection feeler lever are further arranged at the upper end and the lower end of the front side of the detection box, the upper limit detection feeler lever and the lower limit detection feeler lever both comprise a detection swing rod and a return spring, the upper limit detection feeler lever is used for realizing collision detection in front of the detection device, and the lower limit detection feeler lever is used for realizing collision detection in front of and below the detection device.

7. The mechanism of claim 4, wherein the swing structure further comprises two proximity switches and two mechanical physical stops, the two proximity switches are respectively used for detecting the position of the case when the case swings to the outermost position and retracts to the innermost position, and the two mechanical physical stops are respectively used for limiting the two extreme positions of the swing structure.

8. The non-contact type empty box detection mechanism according to claim 4, wherein the detection mechanism further comprises a mounting cabinet, the swing structure and the detection box are stored in the mounting cabinet when being in a retracted state, the two sides of the front side of the mounting cabinet are provided with full-length safety edge touching switches, and the back of the mounting cabinet is further provided with a control box.

9. The non-contact empty box detection mechanism according to claim 8, wherein a motion prompt lamp is arranged on the top of the detection box, and a sound generator and an alarm lamp are arranged on the mounting cabinet.

10. The mechanism as claimed in claim 1, wherein an infrared distance measuring module and an ultrasonic distance measuring module are further disposed on the front side of the detection box for detecting the distance to the container.

Technical Field

the invention relates to the technical field of empty container detection of containers, in particular to a non-contact empty container detection mechanism.

Background

When a vehicle carrying a container enters and exits a port, the vehicle can be inspected in real time as required, manual inspection is mainly adopted in the prior art, inspectors need to open the container door to check the vehicle and climb into the container to check the vehicle on the spot sometimes, a large amount of manpower resources are consumed, the efficiency is low, the labor intensity is high, potential safety hazards exist when people frequently get on or off the vehicle, severe weather is met, the vehicle is difficult to do, a large amount of field resources are occupied, and meanwhile, the problem of slow clearance speed is caused. In order to solve the problems, the invention provides a method for detecting empty containers by using sound waves, mainly comprises a contact type mode and a non-contact type mode, and belongs to the field of acoustic detection. When a detected vehicle is suddenly started without being instructed, contact type empty box detection equipment can be damaged, the defect is obvious, people tend to adopt non-contact type empty box detection equipment, but a sound wave transmitter and a detector of the existing non-contact type empty box detection equipment are arranged in a detection box and move synchronously, the sound wave transmitter vibrates greatly during working, the detection result of the detector can be influenced, the misjudgment rate cannot be further reduced, and the improvement is needed.

Disclosure of Invention

The invention aims to provide a non-contact type empty box detection mechanism capable of further reducing misjudgment rate.

The technical scheme provided by the invention is as follows: the utility model provides a non-contact empty case detection mechanism, includes detection case, detector and sound wave and sends the ware, the detector is fixed on the detection case, the detection case is equipped with the holding tank, the sound wave sends the ware and hoists in the holding tank of detection case through flexible belt, the sound wave sends the ware lower extreme and is passed through non-contact magnetic force centering structure and by centering in the detection case.

The detecting box is characterized in that a positioning block is arranged at the lower end of the sound generator, magnets are arranged on four outer side faces of the positioning block, a positioning frame is correspondingly arranged in the detecting box, magnets are also arranged on four inner side faces of the positioning frame, the positioning block stretches into the positioning frame, the magnets in the positioning block and the magnets in the positioning frame are arranged in a polarity-opposite mode, and the positioning block, the positioning frame and the magnets form a non-contact magnetic force centering structure.

and a soft rubber cushion is further arranged between the lower end face of the sound wave transmitter and the lower surface of the detection box accommodating groove and used for assisting in supporting the sound wave transmitter.

wherein, the detection mechanism also comprises a swing structure of the detection box, the swing structure comprises a fixed bottom plate, a first connecting rod plate, a second connecting rod plate, a first connecting rod, a second connecting rod, an electric push rod and a driving motor, the detection box is provided with a first rotating shaft and a second rotating shaft, the fixed bottom plate is provided with a third rotating shaft, a fourth rotating shaft and a fifth rotating shaft, the first connecting rod plate is provided with a sixth rotating shaft, the first connecting rod plate is fixedly connected with the first connecting rod, the upper end of the first connecting rod is arranged on the first rotating shaft, the lower end of the first connecting rod plate is arranged on the third rotating shaft, the second connecting rod plate is fixedly connected with the second connecting rod, the upper end of the second connecting rod is arranged on the second rotating shaft, the lower end of the second connecting rod plate is arranged on the fourth rotating shaft, the upper end of the electric push rod is arranged on the sixth rotating shaft, and the lower end of the electric push rod is arranged on, first pivot, second pivot, third pivot and fourth pivot form the parallelogram, driving motor is used for driving electric putter flexible, electric putter promotes the detection case through first connecting rod board, second connecting rod board, head rod and second connecting rod and removes to make the detection case remain the horizontality throughout.

Wherein, still be equipped with manual unblock structure on the electric putter.

The upper end and the lower end of the front side face of the detection box are further provided with an upper limit detection feeler lever and a lower limit detection feeler lever, the upper limit detection feeler lever and the lower limit detection feeler lever comprise detection swing rods and reset springs, the upper limit detection feeler lever is used for detecting the collision in front of the detection equipment, and the lower limit detection feeler lever is used for detecting the collision in front of the detection equipment and below the detection equipment.

the swing structure further comprises two proximity switches and two mechanical physical limiting blocks, the two proximity switches are used for monitoring the positions of the detection box when the detection box swings to the outermost position and retracts to the innermost position respectively, and the two mechanical physical limiting blocks are used for limiting two limit positions of the swing structure.

The detection mechanism further comprises an installation cabinet, the swing structure and the detection box are stored in the installation cabinet when the detection mechanism is in a retracted state, full-length safety edge-touching switches are arranged on two side edges of the front side face of the installation cabinet, and a control box is further arranged on the back face of the installation cabinet.

The top of the detection box is provided with a motion prompt lamp, and the installation cabinet is provided with a sounder and an alarm lamp.

The detection box comprises a detection box body, and is characterized in that an infrared ranging module and an ultrasonic ranging module are further arranged on the front side face of the detection box body and used for detecting the distance between the detection box body and a container.

The invention has the beneficial effects that: the detector and the sound wave transmitter of the non-contact empty box detection mechanism are still arranged on the detection box and move synchronously, but the sound wave transmitter is hoisted in an accommodating groove of the detection box through a flexible belt and isolated from the detector through a flexible suspension mode, so that the shock absorption is realized to the maximum extent, the vibration interference on the detector is greatly reduced, and the misjudgment rate can be further reduced; in order to reduce the swing of the lower end of the sound wave transmitter in the motion and detection processes, a non-contact magnetic centering structure is specially designed, so that continuous stabilizing force can be provided for the lower end of the sound wave transmitter, the centering and damping effects are achieved, the stability of the sound wave transmitter is improved, and the misjudgment rate of the detector can be reduced.

Drawings

FIG. 1 is a front view of an embodiment of a non-contact empty box detection mechanism according to the present invention;

FIG. 2 is a rear view of an embodiment of the non-contact empty box detection mechanism of the present invention;

FIG. 3 is a side view of an embodiment of the non-contact empty box detection mechanism of the present invention;

FIG. 4 is a front perspective view of an embodiment of the non-contact empty box detection mechanism of the present invention;

FIG. 5 is a rear perspective view of an embodiment of the non-contact empty box detection mechanism of the present invention;

FIG. 6 is a schematic view of the internal structure of an embodiment of the non-contact empty box detection mechanism according to the present invention;

FIG. 7 is an enlarged view at A in FIG. 6;

FIG. 8 is a front perspective view of an embodiment of the non-contact empty box detection mechanism of the present invention in operation;

FIG. 9 is a rear perspective view of an embodiment of the non-contact empty box detection mechanism of the present invention in an operational state;

FIG. 10 is a side view of the operation of an embodiment of the non-contact empty box detection mechanism of the present invention;

FIG. 11 is a schematic diagram of the internal structure of the non-contact empty box detection mechanism according to the present invention.

Wherein, 1, a detection box; 11. accommodating grooves; 12. a motion prompt lamp; 13. an infrared ranging module; 14. an ultrasonic ranging module; 2. a detector; 3. an acoustic wave transmitter; 4. a flexible belt; 5. a non-contact magnetic centering structure; 51. positioning blocks; 52. a positioning frame; 53. a magnet; 6. a soft rubber cushion; 7. a swing structure; 71. fixing the bottom plate; 72. a first link plate; 73. a second link plate; 74. a first connecting rod; 75. a second connecting rod; 76. an electric push rod; 761. a manual unlocking structure; 77. a drive motor; 78. a first rotating shaft; 79. a second rotating shaft; 791. a third rotating shaft; 792. a fourth rotating shaft; 793. a fifth rotating shaft; 794. a sixth rotating shaft; 8. an upper limit detection feeler lever; 80. a lower limit detection feeler lever; 81. detecting a swing rod; 82. a return spring; 9. installing a cabinet; 91. a safe edge-touching switch; 92. a control box; 93. a sound generator; 94. an alarm lamp.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As an embodiment of the non-contact empty box detection mechanism of the present invention, as shown in fig. 1 to 11, the non-contact empty box detection mechanism includes a detection box 1, a detection instrument 2 and an acoustic wave transmitter 3, the detection instrument 2 is fixed on the detection box 1, the detection box 1 is provided with an accommodating groove 11, the acoustic wave transmitter 3 is suspended in the accommodating groove 11 of the detection box 1 through a flexible belt 4, and the lower end of the acoustic wave transmitter 3 is centered in the detection box 1 through a non-contact magnetic centering structure 5.

The detector 2 and the sound wave transmitter 3 of the non-contact empty box detection mechanism are still arranged on the detection box 1 and move synchronously, but the sound wave transmitter 3 is hung in the accommodating groove 11 of the detection box 1 through the flexible belt 4, the sound wave transmitter 3 is isolated from the detector 2 through a flexible hanging mode, the shock absorption is realized to the maximum extent, the vibration interference on the detector 2 is greatly reduced, and the misjudgment rate can be further reduced; in order to reduce the swing of the lower end of the acoustic wave transmitter 3 in the process of movement and detection, the non-contact magnetic centering structure 5 is specially designed, so that continuous stabilizing force can be provided for the lower end of the acoustic wave transmitter 3, the centering and damping effects are achieved, the stability of the acoustic wave transmitter 3 is improved, and the misjudgment rate of the detector 2 can also be reduced.

In this embodiment, the lower end of the acoustic wave generator 3 is provided with a positioning block 51, four outer side surfaces of the positioning block 51 are provided with magnets 53, the detection box 1 is correspondingly provided with a positioning frame 52, four inner side surfaces of the positioning frame 52 are also provided with magnets 53, the positioning block 51 extends into the positioning frame 52, the magnets 53 in the positioning block 51 and the magnets 53 in the positioning frame 52 are arranged in opposite polarity, and the positioning block 51, the positioning frame 52 and the magnets 53 form a non-contact magnetic centering structure 5. When the sound wave transmitter 3 deviates to a certain direction, the thrust in the direction is greater than that in other directions, so that the sound wave transmitter can automatically return to a stress equilibrium position under the action of the thrust. Non-contact centering and shock absorption are realized through mutually repulsive magnets, and the fact that force is continuously applied to the suspended sound wave transmitter 3 constantly when the detection mechanism swings is guaranteed, and stability is maintained.

In this embodiment, a soft rubber pad 6 is further disposed between the lower end surface of the sonic transmitter 3 and the lower surface of the detection box accommodating groove 11, and is used for assisting in supporting the sonic transmitter 3.

in this embodiment, the detection mechanism further includes a swing structure 7 of the detection box, the swing structure 7 includes a fixed bottom plate 71, a first link plate 72, a second link plate 73, a first connection rod 74, a second connection rod 75, an electric push rod 76 and a driving motor 77, the detection box 1 is provided with a first rotation shaft 78 and a second rotation shaft 79, the fixed bottom plate 71 is provided with a third rotation shaft 791, a fourth rotation shaft 792 and a fifth rotation shaft 793, the first link plate 72 is provided with a sixth rotation shaft 794, the first link plate 72 is fixedly connected with the first connection rod 74, the upper end of the first connection rod 74 is arranged on the first rotation shaft 78, the lower end of the first link plate 72 is arranged on the third rotation shaft 791, the second link plate 73 is fixedly connected with the second connection rod 75, the upper end of the second connection rod 75 is arranged on the second rotation shaft 79, the lower end of the second link plate 73 is arranged on the fourth rotation shaft 792, the upper end of the electric push rod 76 is arranged on the sixth rotating shaft 794, the lower end of the electric push rod 76 is arranged on the fifth rotating shaft 793, the first rotating shaft 78, the second rotating shaft 79, the third rotating shaft 791 and the fourth rotating shaft 792 form a parallelogram, the driving motor 77 is used for driving the electric push rod 76 to stretch and retract, the electric push rod 76 pushes the detection box 1 to move through the first connecting rod plate 72, the second connecting rod plate 73, the first connecting rod 74 and the second connecting rod 75, and the detection box 1 is enabled to be always kept in a horizontal state. Due to the parallelogram structure, at any swinging position, the connecting line between the first rotating shaft 78 and the second rotating shaft 79 is horizontal, so that the detection box 1 is always parallel to the initial state (or the detection surface is parallel to the lane surface), and the detector 2 can be always in the optimal detection angle.

in this embodiment, electric putter 76 realizes swing angle control, and is accurate reliable, still be equipped with manual unblock structure 761 on the electric putter 76, can manual quick the reseing when guaranteeing electrical fault, and manual rotatory manual unblock structure 761 can stop detection mechanism to the optional position in the swing stroke scope.

in this embodiment, the upper and lower both ends of detection case 1 leading flank still are equipped with upper limit and detect feeler lever 8 and lower limit and detect feeler lever 80, upper limit detects feeler lever 8 and lower limit and detects feeler lever 80 and all including detecting pendulum rod 81 and reset spring 82, upper limit detects feeler lever 8 and is used for realizing the collision in detection equipment the place ahead and detects, lower limit detects feeler lever 80 and is used for realizing the collision in detection equipment the place ahead and the below and detects. When the detection swing rod 81 is hit by an external object, the detection swing rod rotates and is detected by the control system, emergency braking is performed, and safety and reliability in the operation track of the detection mechanism are guaranteed. After the external object is removed, the return spring 82 returns the detection swing rod 81 to the initial state.

In this embodiment, the swing structure 7 further includes two proximity switches and two mechanical physical stoppers, the two proximity switches are respectively used for position monitoring when the detection box swings to the outermost position and retracts to the innermost position, and the two mechanical physical stoppers are respectively used for limiting two limit positions of the swing structure. And the motion control of the driving motor forms three-layer protection, so that the motion reliability is ensured.

In this embodiment, the detection mechanism further includes an installation cabinet 9, the swing structure 7 and the detection box 1 are stored in the installation cabinet 9 when in the retracted state, the two sides of the front side of the installation cabinet 9 are provided with full-length safety edge-touching switches 91, and the back of the installation cabinet 9 is further provided with a control box 92. Because installation cabinet 9 is the scissors mouth structure with swing structure 7 when the swing, cause casualties and equipment to damage easily when personnel and other objects get into this space, when safe edge-touching switch 91 is compressed, whole detection mechanism just will scram, safe edge-touching switch 91 still has certain compression capacity this moment, can effectual protection personnel and equipment safety. Installation cabinet 9 is effectively integrated with swing structure 7 and detection case 1, reduces the size demand to on-the-spot installation place, reduces the installation and implements the degree of difficulty. And the installation cabinet 9 adopts the design of outdoor cabinet, and the outward appearance is succinct, and waterproof dustproof effect is strong.

In this embodiment, the top of the detection box 1 is provided with a motion prompt lamp 12 which flickers when the swing structure works to achieve a warning effect; the installation cabinet 9 is provided with a sounder 93 and an alarm lamp 94, different sounds and luminous alarm prompts are given to different detection results, and field observation and judgment are facilitated. The mounting cabinet is provided with

In this embodiment, still be provided with infrared ranging module 13 and ultrasonic ranging module 14 on the detection case 1 leading flank for detect with the distance of container, and non-contact's range finding mode guarantees that the sound wave sends the ware during operation and is in suitable distance with the container outer wall, avoids colliding, has reduced the injury to detection mechanism and container.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.