Magnetic electronic tag for shelf with touch power supply

Abstract

The application relates to a contact power supply type magnetic suction electronic tag for a shelf, and relates to the technical field of electronic tags. The electronic tag comprises a live rail, a tag body and a connecting mechanism. The connecting mechanism comprises: a connecting block one arranged on the tag body; a connecting block two arranged on the connecting block one; the connecting block one and the connecting block two pass through a mounting hole; the tag body drives the connecting block one and the connecting block two to rotate by a certain angle and makes the connecting block two abut against the mounting hole to be positioned; a power line arranged on the live rail; and a connecting sheet arranged on the connecting block two. When the connecting block two abuts against the mounting hole to be positioned, the connecting sheet abuts against the power line and realizes electric transmission. The connecting block two and the connecting block one pass through the mounting hole in sequence, then the tag body is rotated to make the connecting block two abut against the mounting hole to be positioned under the action of gravity, so that the structural complexity and cost are reduced, and the flexibility during use of the tag is improved.

Description

Technical Field

[0001] This application relates to the technical field of electronic tags, and in particular to a contact-powered magnetic electronic tag for shelves. Background Technology

[0002] In smart warehousing and smart retail scenarios, electronic location tags (ESLs) have become a core tool to replace paper tags.

[0003] Its large-scale deployment faces multiple bottlenecks. Firstly, there's the power supply challenge: short battery life necessitates frequent replacements, while independent wiring results in higher costs and greater structural complexity. Secondly...

[0004] Due to flexibility issues, labels need to be moved frequently when the storage location is dynamically adjusted, and traditional fixing methods such as adhesive and screws are difficult to reuse. Summary of the Invention

[0005] To reduce structural complexity and cost, and to improve the flexibility of label usage, this application provides a shelf-mounted contact-powered magnetic electronic tag.

[0006] This application provides a contact-powered magnetic electronic tag for shelves, which adopts the following technical solution:

[0007] A contact-powered magnetic electronic tag for shelves includes an electrified guide rail connected to the shelf and multiple tag bodies for displaying item information. The tag bodies are mounted on the electrified guide rail via a connecting mechanism. The electrified guide rail has mounting holes. The connecting mechanism includes:

[0008] Connector block one is set on the label body;

[0009] Connecting block 2 is set on connecting block 1. Connecting block 1 and connecting block 2 pass through the mounting hole and make the label body abut against the live guide rail. The label body drives connecting block 1 and connecting block 2 to rotate a certain angle and makes connecting block 2 press against the mounting hole for positioning. When the label body needs to be moved, the label body pushes the connecting block 2 to slide on the mounting hole to the designated position.

[0010] The power line is installed on a live rail;

[0011] A connecting piece is disposed on the second connecting block. When the second connecting block is pressed against the mounting hole for positioning, the connecting piece is pressed against the power line and realizes electrical transmission.

[0012] By adopting the above technical solution, the electrified guide rail is fixedly installed on the shelf, and the power line is fixedly installed on the electrified guide rail. Then, connecting block 2 and connecting block 1 are passed through the mounting hole in sequence. Then, the label body rotates, driving connecting block 1 and connecting block 2 to rotate, so that connecting block 2 is pressed against the mounting hole for positioning under the action of gravity. At the same time, the connecting piece is pressed against the power line for positioning, so that the label body is electrically connected to the power line, thereby enabling power supply to the label body. This improves the stability of the structure during operation. When movement is required, the label body is pushed to move, so that connecting block 2 and connecting piece move simultaneously. The connecting piece is always connected to the power line, thereby reducing structural complexity and cost, and improving the flexibility of label use.

[0013] Optionally, the tag body is provided with a positioning mechanism connected to the electrified guide rail, the positioning mechanism comprising:

[0014] The positioning block and the plug-in assembly are disposed on the label body and located on both sides of the connecting block one. The plug-in assembly is movably connected to the label body. During the process of the label body driving the connecting block two to rotate and pressing against the mounting hole, the label body simultaneously drives the positioning block to approach and abut against the electrified guide rail for positioning. Then, the plug-in assembly approaches and abuts against the electrified guide rail for positioning and cooperates with the positioning block to prevent the label body from rotating.

[0015] By adopting the above technical solution, after the label body is installed, the rotation of the label body can easily cause the connecting block 2 to rotate and detach from the live rail, reducing the stability of the label body after installation.

[0016] Initially, the plug-in assembly is detached from the label body, preventing contact between the plug-in assembly and the electrified rail during label installation. When connecting block one and connecting block two pass through the mounting hole, the positioning block is located on one side of the electrified rail. As the label body rotates, the positioning block is driven to approach the electrified rail. When connecting block two presses against the mounting hole, the positioning block abuts against the electrified rail for positioning. Then, the plug-in assembly approaches and abuts against the electrified rail for positioning. The positioning block and the plug-in assembly are located on opposite sides of connecting block one and connecting block two, respectively, thus preventing the label body from rotating. When the label body needs to be removed, the plug-in assembly disengages from the electrified rail, allowing the label body to rotate. This improves both the convenience of label installation and removal and the stability after installation.

[0017] Optionally, the plug-in assembly includes:

[0018] The insertion rod is inserted into and rotatably mounted on the side wall of the label body;

[0019] The buckle is set on the plug-in rod and extends below the live rail and abuts against the label body for positioning;

[0020] The locking block is set on the buckle and presses against the side wall where the tag body contacts the live rail for positioning, so that the buckle presses against the live rail for positioning.

[0021] By adopting the above technical solution, when it is necessary to lock the label body, push the buckle drive block close to the label body, so that the buckle block presses against the side wall of the label body that contacts the live rail for positioning. At the same time, the upper surface of the buckle also abuts against the live rail for positioning. This allows the label body to be positioned in conjunction with the positioning block. If it needs to be removed, pull the buckle or push the buckle block to disengage the buckle block from the side wall of the label body. Then, the buckle can be rotated away from the live rail to unlock. This achieves locking and unlocking with a simple structure, while improving the convenience of label installation and removal and the stability after installation.

[0022] Optionally, the buckle is provided with a gripping groove for easy holding during operation.

[0023] By adopting the above technical solution, the convenience of moving the buckle is further improved.

[0024] Optionally, the length of the locking block is less than the length of the plug-in rod; after the plug-in assembly is disengaged from the electrified guide rail, the locking block can press against the bottom of the label body for positioning.

[0025] By adopting the above technical solution, the length of the locking block is less than the length of the insertion rod, so that even when the locking block is disengaged from the label body, the insertion rod can still remain in the insertion state with the label body.

[0026] This reduces the risk of the insertion rod detaching from the label body due to the movement of the locking block; at the same time, after the locking block detaches from the side wall of the label body, rotating the buckle to a vertical position and pushing the buckle causes the locking block to press against the bottom of the label body for positioning, thereby enabling the positioning of the insertion component, reducing the risk of the insertion component detaching from the label body during transportation, and further improving the convenience of label assembly and disassembly.

[0027] Optionally, it also includes a magnet that can be attracted to a shelf, wherein the label body has a threaded hole and the magnet is threadedly connected to the threaded hole via a threaded rod.

[0028] By adopting the above technical solution, the magnet can be attracted to the shelf for positioning, thereby improving the stability of the label after installation; at the same time, the magnet is detachably connected to the label body through the threaded rod, so that the magnet can be removed when the label body needs to be rotated, which improves the convenience of label installation and removal and the stability after installation.

[0029] Optionally, the label body is provided with a display guide light; the connecting block two is provided with an inclined extrusion surface, and the connecting block two rotates so that the extrusion surface presses against the mounting hole for positioning.

[0030] By adopting the above technical solution, the guide light can display the status of the label body. The setting of the extrusion surface plays a guiding role in the process of the connecting block 2 pressing against the mounting hole, making it easier for the connecting block 2 to press against the mounting hole for positioning, improving the convenience of operation and the convenience of label assembly and disassembly.

[0031] Optionally, two of each of the connecting block one, connecting block two, and connecting piece are provided. The two connecting blocks one are slidably mounted on the label body through an elastic component. The elastic component is used to push the two connecting blocks one away from each other and to make the two connecting blocks one and the two connecting blocks two press against the mounting hole for positioning, and to allow the connecting blocks one and the connecting blocks two to move and make room when they rotate.

[0032] By adopting the above technical solution, during the label body installation process, the first connecting block needs to be rotated, which inevitably results in a certain gap between the first connecting block and the mounting hole, thus making the stability of the label after installation poor. At the same time, there is a force between the second connecting block and the mounting hole, and if jamming occurs when manually rotating, it will be difficult to align the connecting piece and the power line, reducing the stability of the label after installation. Furthermore, there is a certain force when the plug-in component is pressed against the label body for positioning and when the plug-in component is removed, which makes the operation of the plug-in component extremely difficult and reduces the convenience of label assembly and disassembly.

[0033] The elastic component and the two sliding connecting blocks allow connecting blocks one to squeeze and move connecting blocks one, two, and the connecting piece during rotation to make room. After the label body is installed, connecting blocks one and two are pressed against the mounting holes for positioning, and the connecting piece is pressed against the power line for positioning. This reduces the risk of misalignment between the connecting piece and the power line and improves the stability of the label body after installation.

[0034] When installing the plug-in component, push the label body down, then install the plug-in component or remove the plug-in component. After the operation is completed, release the label body. The label body moves back to its original position under the action of the elastic component, so that the label body is pressed against the plug-in component for positioning, which greatly improves the convenience of plug-in component operation. Therefore, it also improves the stability of the label body after installation and the convenience of disassembly and assembly.

[0035] Optionally, the label body has a movable groove, and the movable groove is provided with a conductive contact for conducting electricity. The elastic component includes:

[0036] Two movable blocks are set on one of the two connecting blocks and slidably mounted on the movable slot;

[0037] An elastic element is provided on two connecting blocks and is used to push the two connecting blocks away from each other. When the elastic element pushes the two connecting blocks against the mounting hole for positioning, the two moving blocks and the connecting piece are pressed against the conductive contact and the power line respectively under the action of elastic force, and the power line is electrically connected to the label body.

[0038] By adopting the above technical solution, the elastic element is used to drive the two connecting blocks to move away from each other. After installation, the two moving blocks press against the conductive contacts to make contact and be energized. However, the power is not connected during the sliding of the moving blocks, which reduces the danger and difficulty of energizing the moving blocks during the sliding process, improves the convenience and safety of energizing the moving blocks, and improves the stability of the tag during operation.

[0039] Optionally, the power line is located on the top and / or bottom wall of the mounting hole, and the mounting hole is provided with an insulating element to insulate the power line.

[0040] By adopting the above technical solution, the power line is located on the top or bottom wall inside the mounting hole, thereby reducing the risk of workers coming into contact with the power line. At the same time, insulation is achieved in conjunction with insulating components, thereby improving the safety of the tag body when it is powered on.

[0041] In summary, this application includes at least one of the following beneficial technical effects:

[0042] 1. By passing connecting block 2 and connecting block 1 through the mounting hole in sequence, and then rotating the label body, connecting block 2 is positioned against the mounting hole under gravity. At the same time, the connecting piece is positioned against the power line, so that the label body is electrically connected to the power line, thereby enabling power supply to the label body. When it needs to be moved, the label body can be pushed to move, thereby reducing structural complexity and cost, and improving the flexibility of label use.

[0043] 2. When the label body rotates, the driving positioning block abuts against the electrified guide rail for positioning, and then the plug-in component abuts against the electrified guide rail for positioning. The positioning block and the plug-in component are located on both sides of the connecting block one and connecting block two, respectively, which can prevent the label body from rotating, thereby improving the convenience of label removal and installation and the stability after installation.

[0044] 3. By setting up the elastic component and the two sliding connecting blocks, the connecting blocks can move to make way during the rotation process. After the label body is installed, both connecting blocks one and two are pressed against the mounting holes for positioning, and the connecting piece is pressed against the power line for positioning, which reduces the risk of misalignment between the connecting piece and the power line and improves the stability of the label body after installation.

[0045] 4. When installing the plug-in component, push the label body down, then install or remove the plug-in component. After the operation is completed, release the label body. The label body will move back to its original position under the action of the elastic component, so that the label body is pressed against the plug-in component for positioning. This greatly improves the convenience of plug-in component operation, and thus improves the stability of the label body after installation and the convenience of disassembly and assembly. Attached Figure Description

[0046] Figure 1 This is a three-dimensional structural diagram of embodiment 1 of the electronic tag;

[0047] Figure 2 This is a partial exploded view of embodiment 1 of the electronic tag;

[0048] Figure 3 yes Figure 1 A cross-sectional schematic diagram of AA in the middle;

[0049] Figure 4 yes Figure 3 Enlarged diagram of section B;

[0050] Figure 5 This is a partial structural diagram of electronic tag embodiment 1, mainly showing the positioning mechanism after the tag is installed;

[0051] Figure 6 This is a partial structural diagram of electronic tag embodiment 1, mainly showing the positioning mechanism before tag installation;

[0052] Figure 7 This is a partial structural diagram of electronic tag embodiment 2, mainly showing the connection mechanism and elastic components.

[0053] Reference numerals: 1. Electrified guide rail; 11. Positioning surface; 12. Insulating component; 13. Mounting hole; 14. Mounting part one; 15. Mounting part two; 2. Tag body; 21. Front shell of screen; 22. Back shell of screen; 23. PCB screen board; 24. Guide light; 25. Snap-fit ​​groove; 26. Power plug; 27. Moving groove; 28. Threaded rod; 3. Connecting mechanism; 31. Connecting block one; 32. Connecting block two; 33. Power line; 34. Connecting piece; 35. Magnet; 36. Pressing surface; 4. Positioning mechanism; 41. Positioning block; 42. Plug-in assembly; 43. Plug-in rod; 44. Buckle; 45. Locking block; 46. Plug-in groove; 47. Grip groove; 5. Elastic component; 51. Moving block; 52. Elastic component; 53. Conductive contact. Detailed Implementation

[0054] The following provides a further detailed description of this application.

[0055] This application discloses a contact-powered magnetic electronic tag for shelves.

[0056] Example 1, referring to Figure 1 The shelf-mounted magnetic electronic tag includes an electrified guide rail 1 connected to the shelf and multiple tag bodies 2 for displaying item information. The tag bodies 2 are mounted on the electrified guide rail 1 via a connecting mechanism 3.

[0057] The electrified rail 1 is horizontal and has mounting holes 13 that pass through both ends of the electrified rail 1. The mounting holes 13 include a first mounting part 14 and a second mounting part 15 that are connected to each other. The first mounting part 14 is connected to the side wall of the electrified rail 1 and its width is smaller than the width of the second mounting part 15.

[0058] Reference Figures 2-4 The connecting mechanism 3 includes a first connecting block 31, a second connecting block 32, a power line 33, a connecting piece 34, and a magnet 35. The tag body 2 includes a front shell 21, a rear shell 22, and a PCB screen board 23. The front shell 21 and the rear shell 22 are fixedly connected together by screws, and the PCB screen board 23 is fixedly installed inside the front shell 21 and the rear shell 22 to display the cargo information. The above structure is the conventional technical structure of electronic tags and will not be described in detail here.

[0059] A snap-fit ​​groove 25 is provided on the back cover 22 of the screen, and a power input plug 26 is snapped into the groove 25. A connecting block 31 is fixedly installed on the end of the power input plug 26 away from the back cover 22 of the screen. The thickness of the connecting block 31 is less than the width of the mounting part 14, so that the connecting block 31 can pass through the mounting part 14 and rotate within the mounting part 14. Two connecting blocks 32 are provided and fixedly installed on the upper and lower surfaces of the end of the connecting block 31 away from the power input plug 26. The opposite side walls of the connecting block 32 are flush with the opposite side walls of the connecting block 31. At the same time, the distance between the top of the connecting block 32 above the connecting block 31 and the bottom of the other connecting block 32 is greater than the width between the mounting parts 14 and less than the width between the mounting parts 15, so that when the connecting blocks 31 and 32 are placed in a horizontal state, the upper and lower surfaces of the connecting blocks 31 and 32 are flush.

[0060] When connecting block 1 31 and connecting block 2 32 are placed in a horizontal state, they can both pass through mounting part 1 14, and connecting block 2 32 is moved into mounting part 2 15, so that the back cover 22 of the screen abuts against the live rail 1. Then the label body 2 rotates 90 degrees, so that the two connecting blocks 2 32 turn to a vertical state, and at the same time, the two connecting blocks 2 32 are pressed against the side wall of mounting part 2 15 for positioning under the action of gravity, thereby realizing the installation of the label body 2 onto the live rail 1.

[0061] Two connecting blocks 32 have inclined pressing surfaces 36 on their sidewalls near the back cover 22 of the screen. The two pressing surfaces 36 are mirror-symmetrical about the connecting block 31. The end of the pressing surface 36 near the connecting block 31 is inclined towards the power inlet plug 26. The mounting part 15 has an inclined positioning surface 11 that presses against the pressing surface 36. The pressing surface 36 is positioned by pressing against the positioning surface 11. The inclined pressing surface 36 can guide the pressing process, making it easier for the pressing surface 36 to press against the positioning surface 11 for positioning, thereby realizing the installation of the label body 2 onto the live rail 1.

[0062] Insulating components 12 are fixedly installed on the top and bottom walls of the mounting section 2 15. Power lines 33 are fixedly installed on the insulating components 12, preventing the electricity in the power lines 33 from being conducted to the energized rail 1. The power lines 33 are located near the power inlet plug 26. Connecting pieces 34 are fixedly installed on opposite ends of the two connecting blocks 2 32. When the connecting blocks 2 32 are vertical, the two connecting pieces 34 are located at the top of one connecting block 2 32 and the bottom of the other. When the pressing surface 36 presses against the positioning surface 11, the two connecting pieces 34 press against the power lines 33, thereby supplying power to the label body 2.

[0063] A threaded hole is provided on the side wall of the back cover 22 of the screen. The magnet 35 is detachably mounted on the threaded hole through the threaded rod 28. When the label body 2 is installed on the live rail 1, the threaded hole is located above the live rail 1. The threaded rod 28 is threaded to the threaded hole, and the magnet 35 can be attracted to the shelf for positioning, thereby further improving the stability of the electronic label during operation. When the label body 2 needs to be removed, the magnet 35 is removed, and then the label body 2 can be removed.

[0064] Reference Figure 1 , Figure 2 The label body 2 is provided with a positioning mechanism 4 connected to the electrified guide rail 1. The positioning mechanism 4 includes a positioning block 41 and a plug-in component 42. The positioning block 41 and the plug-in component 42 are located on the label body 2 and on both sides of the connecting block 31 along the direction of the electrified guide rail 1. The positioning block 41 is fixedly installed on the side wall of the back cover 22 of the screen close to the electrified guide rail 1.

[0065] The plug-in component 42 is movably connected to the label body 2. As the label body 2 drives the connecting block 32 to rotate and presses against the mounting part 15, it simultaneously drives the positioning block 41 to approach and abut against the electrified guide rail 1 for positioning. At this time, the length of the label body 2 is parallel to the length direction of the electrified guide rail 1. Then the plug-in component 42 approaches and presses against the electrified guide rail 1 for positioning. The positioning block 41 and the plug-in component 42 cooperate to position the label body 2 and prevent the label body 2 from rotating.

[0066] The plug-in assembly 42 includes a plug-in rod 43, a buckle 44, and a locking block 45. The front shell 21 has a plug-in groove 46 on the side wall opposite to the positioning block 41 along the length of the live rail 1. The plug-in rod 43 is plugged into the plug-in groove 46 and can rotate on the plug-in groove 46. The buckle 44 is fixedly installed on the end of the plug-in rod 43 located outside the plug-in groove 46. The buckle 44 abuts against the front shell 21 and extends horizontally below the live rail 1.

[0067] Reference Figure 1 , Figure 2 , Figures 5-6 The locking block 45 is fixedly installed on the side wall of the buckle 44 near the label body 2. The locking block 45 presses against the side wall of the screen back shell 22 that contacts the live rail 1 for positioning, and at the same time, the upper surface of the buckle 44 presses against the lower surface of the live rail 1 for positioning. In the initial state, that is, before the label body 2 is installed on the live rail 1, the locking block 45 can also press against the bottom of the screen front shell 21 and the screen back shell 22 for positioning.

[0068] Reference Figures 1-6 The label body 2 is brought close to the electrified guide rail 1, so that the positioning block 41 is located below the electrified guide rail 1 and the plug-in assembly 42 is located above the electrified guide rail 1. The connecting block 1 31 and the connecting block 2 32 are passed through the mounting part 14 and the connecting block 2 32 extends into the mounting part 2 15. The label body 2 is rotated 90 degrees, so that the pressing surface 36 presses against the positioning surface 11 for positioning, and the positioning block 41 abuts against the lower surface of the electrified guide rail 1 for positioning.

[0069] Pull the buckle 44 away from the label body 2, then rotate the buckle 44 to approach and abut against the lower surface of the electrified guide rail 1. Push the buckle 44 and the locking block 45 closer to the label body 2, so that the locking block 45 presses against the side wall of the label body 2 in contact with the electrified guide rail 1 for positioning, while the buckle 44 abuts against the label body 2 for positioning, so that the label body 2 cannot rotate, thereby positioning the label body 2; when the label body 2 needs to be moved, push the label body 2 to the designated position.

[0070] Reference Figure 1 , Figure 2 The length of the insertion rod 43 is greater than the length of the locking block 45, so that when the locking block 45 is detached from the label body 2, the insertion rod 43 remains inserted in the insertion slot 46, reducing the risk that the insertion rod 43 will fall off the insertion slot 46 and lose its positioning effect. The buckle 44 has a gripping groove 47 on the side wall opposite to the label body 2, which provides gripping force when driving the buckle 44 to move.

[0071] Reference Figure 1 , Figure 3A guide light 24 is fixedly installed on the PCB screen board 23, and a guide hole is fixedly installed on the front shell 21 of the screen. The guide light 24 extends to the outside of the front shell 21 through the guide hole.

[0072] It also includes a power line carrier module, a device that uses power lines to transmit data signals. It modulates the data signal onto the power line 33, then transmits it to the receiving end via the power line 33. The receiving end then demodulates the signal to achieve data transmission and communication. The power line carrier module uses the power line 33 as the transmission medium, superimposing the data signal onto the power line 33 using modulation techniques. Modulation techniques include amplitude modulation, frequency modulation, and phase modulation, converting the data signal into a signal suitable for transmission on the power line 33. At the receiving end, the signal on the power line is restored to the original data signal using modulation techniques.

[0073] The working principle of this application embodiment is as follows:

[0074] The label body 2 is brought close to the electrified guide rail 1, so that the positioning block 41 is below the electrified guide rail 1 and the plug-in assembly 42 is above the electrified guide rail 1. The connecting block 1 31 and the connecting block 2 32 are passed through the mounting part 14 and the connecting block 2 32 extends into the mounting part 2 15. The label body 2 is rotated. When the threaded hole is rotated above the electrified guide rail 1, the threaded rod on the magnet 35 is threaded into the threaded hole. The label body 2 continues to rotate until the angle reaches 90 degrees, so that the pressing surface 36 presses against the positioning surface 11 for positioning, and the connecting piece 34 presses against the power line 33 for positioning, and the positioning block 41 abuts against the lower surface of the electrified guide rail 1 for positioning. At the same time, the magnet 35 is attracted to the shelf for positioning.

[0075] Pull the latch 44 away from the label body 2, rotate the latch 44 to abut against the lower surface of the electrified guide rail 1, push the latch 44 so that the latch block 45 presses against the side wall where the label body 2 contacts the electrified guide rail 1 for positioning, and at the same time the latch 44 abuts against the label body 2 for positioning, so that the label body 2 cannot rotate, thereby positioning the label body 2. The power line 33 supplies power to the label body 2. When the label body 2 needs to be moved, push the label body 2 to the designated position, and the magnet 35 continues to be attracted to the shelf, thereby reducing the structural complexity and cost, and improving the flexibility of label use.

[0076] Example 2, refer to Figure 1 , Figure 7The difference between this embodiment and embodiment 1 is that there are two connecting blocks 31, which are corresponding to two connecting blocks 32. The two connecting blocks 31 are slidably mounted on the power plug 26 by means of the elastic component 5. The two connecting blocks 31 are spaced apart along the length direction perpendicular to the label body 2 and are vertically spaced apart. The elastic component 5 is used to push the two connecting blocks 31 away from each other, so that the opposite side walls of the two connecting blocks 31 press against the opposite side walls of the mounting part 14 for positioning, and the pressing surface 36 presses against the positioning surface 11 and the connecting piece 34 presses against the power line 33 for positioning. At the same time, when the connecting blocks 31 and the connecting blocks 32 rotate, the mounting part 14 can push the two connecting blocks 31 closer to each other to make way.

[0077] A vertical moving groove 27 is provided on the side wall of the power plug 26 near the live guide rail 1. Fixing holes are provided on the top and bottom walls of the moving groove 27, and conductive contacts 53 are fixedly installed in the two fixing holes. The elastic component 5 includes two moving blocks 51 and an elastic element 52. The two moving blocks 51 are respectively arranged corresponding to the two connecting blocks 31. The moving blocks 51 are fixedly installed on the end of the connecting blocks 31 near the power plug 26, and the moving blocks 51 are vertically slidably installed on the moving groove 27. The elastic element 52 is a spring or sheet, and there are multiple elastic elements 52 spaced horizontally. The two ends of the elastic element 52 are fixedly installed on the opposite side walls of the two connecting blocks 31 for positioning. The elastic element 52 is used to drive the two connecting blocks 31 away from each other.

[0078] When the two connecting blocks 31 press against the mounting part 14, the two moving blocks 51 press against the two ends of the moving groove 27 for positioning, and the two conductive contacts 53 abut against the two moving blocks 51 for positioning. Through the conductive contacts 53, moving blocks 51, connecting blocks 31, connecting blocks 32 and connecting pieces 34, the power line 33 is electrically connected to the tag body 2, thereby providing power to the tag body 2.

[0079] The working principle of this application embodiment is as follows:

[0080] Connecting block 1 31 and connecting block 2 32 pass through mounting part 1 14, connecting block 2 32 extends into mounting part 2 15, the back cover 22 abuts against the live guide rail 1, the label body 2 rotates 90 degrees, mounting part 1 14 contacts the two connecting blocks 1 31 and pushes the two connecting blocks 1 31 closer to each other, and then the two connecting blocks 1 31 move away from each other and abut against mounting part 1 14, so that the pressing surface 36 presses against the positioning surface 11 and the connecting piece 34 presses against the power line 33 for positioning, thereby realizing the positioning of the label body 2 and improving the stability of the label during operation.

[0081] Before pressing the clip 46 against the back cover 22 of the screen and pulling the buckle 45, first twist the magnet 35 to get close to the label body 2 and disengage it from the shelf, then press down on the label body 2 to squeeze the elastic element 52 to make room, thus facilitating the movement of the clip 46. After the movement is completed, release the label body 2, and the label body 2 moves upward under the action of the elastic element 52. Finally, twist the magnet 35 to get close to and attach it to the shelf for positioning, thus greatly improving the convenience of label installation and removal.

[0082] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A contact-powered magnetic electronic tag for shelves, characterized in that: Includes an electrified guide rail (1) connected to a shelf and multiple label bodies (2) for displaying item information. The label bodies (2) are mounted on the electrified guide rail (1) via a connecting mechanism (3). The electrified guide rail (1) has mounting holes (13). The connecting mechanism (3) includes: Connecting block 1 (31) is set on the label body (2); Connecting block 2 (32) is set on connecting block 1 (31). Connecting block 1 (31) and connecting block 2 (32) pass through the mounting hole (13) and make the label body (2) abut against the electric guide rail (1). The label body (2) drives connecting block 1 (31) and connecting block 2 (32) to rotate a certain angle and makes connecting block 2 (32) press against the mounting hole (13) for positioning. When it is necessary to move the label body (2), push the label body (2) to drive connecting block 2 (32) to slide on the mounting hole (13) to the designated position. The power line (33) is installed on the energized rail (1); The connecting piece (34) is disposed on the connecting block two (32). When the connecting block two (32) is pressed against the mounting hole (13) for positioning, the connecting piece (34) is pressed against the power line (33) and realizes electrical transmission. The tag body (2) is provided with a positioning mechanism (4) connected to the electrified guide rail (1), the positioning mechanism (4) includes: The positioning block (41) and the plug-in component (42) are set on the label body (2) and located on both sides of the connecting block (31). The plug-in component (42) is movably connected to the label body (2). When the label body (2) drives the connecting block (32) to rotate and presses against the mounting hole (13), it simultaneously drives the positioning block (41) to approach and press against the electrified guide rail (1) for positioning. Then the plug-in component (42) approaches and presses against the electrified guide rail (1) for positioning and cooperates with the positioning block (41) to block the rotation of the label body (2). Two of each of the connecting block 1 (31), connecting block 2 (32) and connecting piece (34) are provided. The two connecting blocks 1 (31) are slidably disposed on the label body (2) by means of the elastic component (5). The elastic component (5) is used to push the two connecting blocks 1 (31) away from each other and to make the two connecting blocks 1 (31) and the two connecting blocks 2 (32) press against the mounting hole (13) for positioning and to allow the connecting blocks 1 (31) and the connecting blocks 2 (32) to move and make way when they rotate.

2. The contact-powered magnetic electronic tag for shelves according to claim 1, characterized in that: The plug-in assembly (42) includes: The insertion rod (43) is inserted into and rotatably mounted on the side wall of the label body (2); The buckle (44) is set on the plug rod (43) and extends below the live rail (1) and abuts against the label body (2) for positioning; The clip (45) is set on the buckle (44) and presses against the side wall of the tag body (2) that contacts the live rail (1) for positioning, so that the buckle (44) presses against the live rail (1) for positioning.

3. The contact-powered magnetic electronic tag for shelves according to claim 2, characterized in that: The buckle (44) is provided with a gripping groove (47) for easy gripping during operation.

4. A contact-powered magnetic electronic tag for shelves according to claim 2, characterized in that: The length of the locking block (45) is less than the length of the plug-in rod (43); after the plug-in assembly (42) is disengaged from the live rail (1), the locking block (45) can press against the bottom of the label body (2) for positioning.

5. A contact-powered magnetic electronic tag for shelves according to claim 1, characterized in that: It also includes a magnet (35) that is attracted to the shelf. The label body (2) has a threaded hole, and the magnet (35) is threaded to the threaded hole through a threaded rod (28).

6. The contact-powered magnetic electronic tag for shelves according to claim 1, characterized in that: The label body (2) is provided with a display guide light (24); the connecting block two (32) is provided with an inclined extrusion surface (36), and the connecting block two (32) rotates so that the extrusion surface (36) presses against the mounting hole (13) for positioning.

7. A contact-powered magnetic electronic tag for shelves according to claim 1, characterized in that: The label body (2) has a movable groove (27), and the movable groove (27) is provided with a conductive contact (53) for conducting electricity. The elastic component (5) includes: Two movable blocks (51) are set on two connecting blocks (31) and slidably mounted on the movable slot (27); The elastic element (52) is disposed on the two connecting blocks (31) and is used to push the two connecting blocks (31) away from each other. When the elastic element (52) pushes the two connecting blocks (31) against the mounting hole (13) for positioning, the two moving blocks (51) and the connecting piece (34) are pressed against the conductive contact (53) and the power line (33) respectively under the action of elastic force, and the power line (33) is electrically connected to the tag body (2).

8. A contact-powered magnetic electronic tag for shelves according to claim 1, characterized in that: The power line (33) is located on the top and / or bottom wall inside the mounting hole (13), and the mounting hole (13) is provided with an insulating element (12) to insulate the power line (33).

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