Radio frequency identification shielding device

Abstract

The utility model relates to the technical field of radio frequency identification equipment, in particular to a radio frequency identification shielding device which comprises a frame, a shielding mechanism arranged in the frame and a conveying line penetrating through the shielding mechanism. The shielding mechanism comprises an inner box, an inlet and an outlet are formed in the inner box, lifting doors are arranged at the inlet and the outlet, air cylinders are arranged on the lifting doors, guide rails are arranged at the positions, on the two sides of the lifting doors, of the inner box, sliding grooves are formed in the guide rails, and the tail ends of the sliding grooves are in an arc shape bent towards the side wall of the inner box. A follow-up device is arranged in the sliding groove in a sliding mode and connected with the lifting door. As the tail end of the sliding groove is in the bent shape close to the side wall of the inner box, the follow-up device slides along the bent section to drive the lifting door to be close to the inner wall of the inner box, finally the lifting door is attached to the inner wall of the inner box, the gap between the lifting door and the inner wall of the inner box after the lifting door is closed is reduced, and then the possibility that radio frequency signals are leaked or interfered by signals of other equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency identification (RFID) equipment technology, and in particular to an RFID shielding device. Background Technology

[0002] In recent years, with the development of 5G communication, enterprises have been carrying out a series of digital transformations, the most important of which is asset management. A series of equipment for asset management has also emerged in the market. Among them, radio frequency access gates using RFID technology play a crucial role in realizing the management of inbound and outbound operations.

[0003] With the widespread application of wireless communication technology, the problem of radio frequency signal interference is becoming increasingly serious. Traditional radio frequency door equipment does not have adequate signal shielding at the lifting door's moving part. For example, the lifting door is driven to rise and fall by a cylinder. In order to prevent friction from affecting the normal operation of the lifting door, there is a certain gap between the lifting door and the inner wall of the inner box. This can easily lead to radio frequency signal leakage or interference from other equipment signals, thus affecting the normal operation of the equipment. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the technical problem that radio frequency signals are susceptible to interference in the prior art, this utility model is proposed.

[0006] The purpose of this invention is to provide a radio frequency identification (RFID) shielding device.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a radio frequency identification shielding device, comprising a frame, a shielding mechanism disposed within the frame, and a conveyor line passing through the shielding mechanism; the shielding mechanism includes an inner box, the inner box having an inlet and an outlet, both the inlet and the outlet having lifting doors, the lifting doors having cylinders connected to the inner box, the inner box having guide rails on both sides of the lifting doors, the guide rails having grooves, the ends of the grooves being arc-shaped and curved towards the side wall of the inner box, a follower being slidably disposed within the grooves, the follower being connected to the lifting doors.

[0008] As a preferred embodiment of the radio frequency identification shielding device of this utility model, the shielding mechanism further includes a conductive layer disposed on the inner wall of the inner box, and the lifting door and the guide rail are both located inside the inner box.

[0009] In a preferred embodiment of the radio frequency identification shielding device of this utility model, both the guide rail and the follower are conductors.

[0010] In a preferred embodiment of the radio frequency identification shielding device of this utility model, the cylinder is vertically arranged, the lower end of the cylinder is connected to the lifting door, and the upper end of the cylinder is hinged to the inner wall of the inner box.

[0011] As a preferred embodiment of the radio frequency identification shielding device of this utility model, the guide rail is vertically arranged, and the guide rail includes two sliding grooves arranged vertically. The lower ends of the two sliding grooves are both arc-shaped and curved towards the inner wall of the inner box. Followers are slidably arranged in both the upper and lower sliding grooves, and the followers in both the upper and lower sliding grooves are connected to the lifting door.

[0012] As a preferred embodiment of the radio frequency identification shielding device of this utility model, the shielding mechanism further includes stabilizing components disposed on both sides of the lifting door. The stabilizing components include a vertical frame disposed on the lifting door, and ball bearings are disposed on the vertical frame. The side of the ball bearings abuts against the guide rail.

[0013] As a preferred embodiment of the radio frequency identification shielding device of this utility model, the conveyor line includes a first part disposed on the inlet side, a second part disposed on the outlet side, and a third part disposed inside the inner box, and the conveyor line is a roller conveyor line.

[0014] In a preferred embodiment of the radio frequency identification shielding device of this utility model, the conductive layer is conductive foam, and the conductive layer is fixed to the inner wall of the inner box by adhesive.

[0015] As a preferred embodiment of the radio frequency identification shielding device of this utility model, the shielding mechanism further includes an inspection door disposed on the side wall of the inner box.

[0016] In a preferred embodiment of the radio frequency identification shielding device of this utility model, the inner box is provided with inspection doors on both sides of the conveyor line, and the inspection doors are sealed to the inner box.

[0017] The beneficial effects of the radio frequency identification shielding device of this utility model are as follows: Since the end of the chute is curved towards the inner side wall of the box, when the follower slides to the curved section, as the follower slides along the curved section, it drives the lifting door to move closer to the inner wall of the box. Finally, the lifting door is against the inner wall of the box, reducing the gap between the lifting door and the inner wall of the box after it is closed, thereby reducing the possibility of radio frequency signal leakage or interference from other equipment signals. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the inner box in this utility model.

[0021] Figure 3 This is a schematic diagram of the internal structure of the inner box in this utility model.

[0022] Figure 4 This is a schematic diagram of the layout structure of the sliding groove in this utility model.

[0023] Figure 5 This is a schematic diagram showing the relative positions of the inner box and the conductive layer in this utility model. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Example 1, referring to Figure 1-4 This is the first embodiment of the present utility model. This embodiment provides a radio frequency identification shielding device, including a frame 100, a shielding mechanism 200 disposed within the frame 100, and a conveyor line 300 passing through the shielding mechanism 200.

[0028] The shielding mechanism 200 includes an inner box 201, an inlet 202 and an outlet 203, and lifting doors 204 at both the inlet 202 and the outlet 203. A cylinder 205 is installed on the lifting door 204 and is connected to the inner box 201. Guide rails 206 are installed on both sides of the lifting door 204 in the inner box 201. A sliding groove 207 is installed on the guide rail 206. The end of the sliding groove 207 is an arc shape that bends toward the side wall of the inner box 201. A follower 208 is slidably installed in the sliding groove 207 and is connected to the lifting door 204.

[0029] The turnover box (or other product packaging, the same below) that needs to be identified is conveyed to the inner box 201 through the conveyor line 300. The inner box 201 has an RFID reader and a camera. The RFID reader reads the information on the barcode on the turnover box, and the camera takes pictures to read the information of each electricity meter in the turnover box. After identification, it is sent out through the conveyor line 300. The identification method here is a common method in the existing technology. The specific structure and principle will not be described here.

[0030] During product identification, the product is fed into the inner box 201 via the conveyor line 300. Then, the lifting door 204 closes, and the RFID reader and camera identify the turnover box. After identification, the lifting door 204 opens, and the turnover box is sent out. Since the end of the chute 207 is curved towards the side wall of the inner box 201, when the follower 208 slides to the curved section, as the follower 208 slides along the curved section, it drives the lifting door 204 to move closer to the inner wall of the inner box 201. Finally, the lifting door 204 abuts against the inner wall of the inner box 201, reducing the gap between the lifting door 204 and the inner wall of the inner box 201 after the lifting door 204 is closed, thereby reducing the possibility of radio frequency signal leakage or interference from other equipment signals.

[0031] Furthermore, the shielding mechanism 200 also includes a conductive layer 209 disposed on the inner wall of the inner box 201, and the lifting door 204 and the guide rail 206 are both located inside the inner box 201.

[0032] A conductive layer 209 is covered on the inner wall of the inner box 201. After the lifting door 204 is closed, the lifting door 204 and the conductive layer 209 come into contact to form an electromagnetic shielding mesh, which further improves the anti-interference capability.

[0033] Furthermore, the conductive layer 209 is conductive foam, and the conductive layer 209 is fixed to the inner wall of the inner box 201 by adhesive.

[0034] Example 2, refer to Figure 1-5 This is the second embodiment of the present invention. Unlike the previous embodiment, both the guide rail 206 and the follower 208 are conductors.

[0035] Both the guide rail 206 and the follower 208 are made of conductors, forming an electromagnetic shielding mesh between the guide rail 206, the follower 208, the conductive layer 209 and the lifting door 204, reducing signal leakage at the slide 207 and improving the anti-interference capability at that location.

[0036] Furthermore, the cylinder 205 is vertically arranged, with its lower end connected to the lifting door 204 and its upper end hinged to the inner wall of the inner box 201.

[0037] Furthermore, the guide rail 206 is vertically arranged, and the guide rail 206 has two sliding grooves 207 arranged vertically. The lower ends of the two sliding grooves 207 are both arc-shaped and curved towards the inner wall of the inner box 201. Followers 208 are slidably arranged in both the upper and lower sliding grooves 207, and the followers 208 in both the upper and lower sliding grooves 207 are connected to the lifting door 204.

[0038] Two follower motors 208 are installed on the same guide rail 206, which are connected to the upper and lower sides of the lifting door 204 respectively, to ensure the stability of the lifting door 204 when it is raised and lowered.

[0039] Example 3, referring to Figure 1-5 This is the third embodiment of the present invention. Unlike the previous embodiment, the shielding mechanism 200 also includes a stabilizing component 210 disposed on both sides of the lifting door 204. The stabilizing component 210 includes a vertical frame 210a disposed on the lifting door 204. A ball bearing 210b is disposed on the vertical frame 210a, and the side of the ball bearing 210b abuts against the guide rail 206.

[0040] The stabilizing component 210 abuts against the slide rail and the lifting door 204, serving as a guide and limiter, further improving the stability of the lifting door 204 during lifting and lowering.

[0041] Furthermore, the conveyor line 300 includes a first part 301 disposed on one side of the inlet 202, a second part 302 disposed on one side of the outlet 203, and a third part 303 disposed inside the inner box 201. The conveyor line 300 is a roller conveyor line.

[0042] Furthermore, the shielding mechanism 200 also includes an inspection door 211 located on the side wall of the inner casing 201.

[0043] Furthermore, the inner box 201 is provided with inspection doors 211 on both sides of the conveyor line 300, and the inspection doors 211 are sealed to the inner box 201.

[0044] Specifically, the inner box 201 is equipped with inspection doors 211 on both sides of the conveyor line 300 to facilitate the maintenance of the internal components of the inner box 201. The inspection door 211 is sealed to reduce the possibility of signal leakage and improve the anti-interference capability. The sealing can be achieved by using a sealing gasket or sealing cotton.

[0045] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0046] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A radio frequency identification (RFID) shielding device, characterized in that: Includes a frame (100), a shielding mechanism (200) disposed within the frame (100), and a conveyor line (300) passing through the shielding mechanism (200); The shielding mechanism (200) includes an inner box (201), an inlet (202) and an outlet (203) on the inner box (201), and a lifting door (204) on both the inlet (202) and the outlet (203). A cylinder (205) is provided on the lifting door (204) and the cylinder (205) is connected to the inner box (201). Guide rails (206) are provided on both sides of the lifting door (204) on the inner box (201). A sliding groove (207) is provided on the guide rail (206). The end of the sliding groove (207) is an arc shape that bends toward the side wall of the inner box (201). A follower (208) is slidably arranged in the sliding groove (207) and the follower (208) is connected to the lifting door (204).

2. The radio frequency identification shielding device as described in claim 1, characterized in that: The shielding mechanism (200) also includes a conductive layer (209) disposed on the inner wall of the inner box (201), and the lifting door (204) and the guide rail (206) are both located inside the inner box (201).

3. The radio frequency identification shielding device as described in claim 2, characterized in that: Both the guide rail (206) and the follower (208) are conductors.

4. The radio frequency identification shielding device as described in claim 2 or 3, characterized in that: The cylinder (205) is vertically arranged, the lower end of the cylinder (205) is connected to the lifting door (204), and the upper end of the cylinder (205) is hinged to the inner wall of the inner box (201).

5. The radio frequency identification shielding device as described in claim 4, characterized in that: The guide rail (206) is vertically arranged, and the guide rail (206) has two grooves (207) arranged vertically. The lower ends of the two grooves (207) are curved towards the inner wall of the inner box (201). Followers (208) are slidably arranged in both the upper and lower grooves (207), and the followers (208) in both the upper and lower grooves (207) are connected to the lifting door (204).

6. The radio frequency identification shielding device as described in claim 5, characterized in that: The shielding mechanism (200) also includes stabilizing components (210) disposed on both sides of the lifting door (204). The stabilizing components (210) include a vertical frame (210a) disposed on the lifting door (204), and a ball bearing (210b) is disposed on the vertical frame (210a). The side of the ball bearing (210b) abuts against the guide rail (206).

7. The radio frequency identification shielding device as described in claim 6, characterized in that: The conveyor line (300) includes a first part (301) disposed on the side of the inlet (202), a second part (302) disposed on the side of the outlet (203), and a third part (303) disposed inside the inner box (201). The conveyor line (300) is a roller conveyor line.

8. The radio frequency identification shielding device as described in claim 7, characterized in that: The conductive layer (209) is conductive foam, and the conductive layer (209) is fixed to the inner wall of the inner box (201) by adhesive.

9. The radio frequency identification shielding device as described in claim 8, characterized in that: The shielding mechanism (200) also includes an inspection door (211) disposed on the side wall of the inner casing (201).

10. The radio frequency identification shielding device as described in claim 9, characterized in that: The inner box (201) is provided with inspection doors (211) on both sides of the conveyor line (300), and the inspection doors (211) and the inner box (201) are sealed together.

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