A wireless portable shielding device
By designing a sealed component and Velcro/elastic band to enclose the charging port in the wireless shielding device, the portable structure solves the problems of easy damage to the charging port and insufficient portability, thereby improving the portability and ease of use of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NAN JING SHU FANG KE JI YOU XIAN GONG SI
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-07
AI Technical Summary
Existing wireless shielding devices have charging ports that are easily damaged by dirt and lack a portable design, affecting ease of use.
A wireless portable shielding device was designed. The charging port is sealed by a closed component, and the device can be worn on the waist or arm with Velcro and elastic band, making it easy to carry.
It effectively prevents damage to the charging port, improves the portability and ease of use of the device, and frees up the user's hands.
Smart Images

Figure CN224473323U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wireless shielding devices, and in particular to a portable wireless shielding device. Background Technology
[0002] A wireless jamming device is a device that can block the propagation of wireless signals within a specific range. It works by emitting interference signals at the same or similar frequencies as the target signal, preventing mobile phones, WiFi, Bluetooth, and other wireless devices from communicating normally. Small jammers achieve efficient signal suppression through integrated modules, suitable for scenarios such as anti-cheating in examination rooms and confidentiality in small meetings. They require no complicated operation, quickly creating a localized shielded area after activation. While ensuring effective jamming, they also cater to mobile usage needs, making them a simplified version of signal jamming devices.
[0003] However, current wireless shielding devices have the following drawbacks: First, the charging port lacks effective sealing, making it easy for dirt to enter and cause damage; second, the lack of a portable structure results in insufficient portability, requiring hand-carrying and not being able to be worn on the waist or arm, which restricts the user's hands and affects the convenience of use.
[0004] In response to this technical problem, this application proposes a wireless portable shielding device. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wireless portable shielding device. This device aims to seal the charging port to prevent dirt from entering and damaging it, and allows the shielding device to be worn on the waist or arm, freeing the user's hands and improving its portability.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A portable wireless shielding device includes a shielder with a charging port in the center of its bottom side. A sealing component is provided on the bottom side of the shielder to seal the charging port. Two metal plates are fixedly connected to the left side of the top side of the shielder, and a telescopic antenna is rotatably connected between the two metal plates via a damping shaft. A portable component is provided on the top side of the shielder to facilitate personnel carrying the shielder. Heat dissipation vents are provided on both the left and right sides of the shielder, and heat dissipation grilles are fixedly connected inside the heat dissipation vents.
[0008] Furthermore, the enclosure includes a groove formed on the bottom side of the shield, the charging port is located inside the groove, a rotating rod is fixedly connected to the rear side inside the groove, and a cover plate is rotatably connected to the outer wall of the rotating rod.
[0009] Furthermore, an insert plate is fixedly connected to the top side of the cover plate, a slot is provided on the front side of the groove, and a pressing plate is connected to the front side of the insert plate by a torsion spring.
[0010] Furthermore, both the insert plate and the pressing plate are inserted into the inside of the slot, the inside of the slot is provided with a positioning groove, and a positioning block is fixedly connected to the front side of the pressing plate, the positioning block is engaged inside the positioning groove.
[0011] Furthermore, the portable component includes a metal ring fixedly connected to the top side of the shield, and the metal ring has two hooks inside.
[0012] Furthermore, one side of the hook is connected to a rotating plate via a torsion spring, and the two hooks are connected by a first elastic band.
[0013] Furthermore, two second elastic bands are fixedly connected to the rear side of the shield. A first Velcro is fixedly connected to the rear side of the second elastic band on the left side, and a second Velcro is fixedly connected to the front side of the second elastic band on the right side. The first Velcro and the second Velcro cooperate with each other.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, by rotating the cover plate, the insert plate and the pressing plate are inserted into the slot, and the pressing plate with the positioning block is engaged in the positioning groove by the torsion spring, thereby preventing the pressing plate from dislodging from the slot, thus preventing the charging port from opening due to the rotation of the cover plate, so that the cover plate seals the charging port and prevents dirt from entering the charging port and causing damage to the charging port.
[0016] 2. In this utility model, the first elastic band is wrapped around the waist, and then another hook is hooked into the metal ring to connect the first elastic band into a ring, so that the first elastic band carries the shield around the waist, making it convenient for the staff to carry. Alternatively, the two second elastic bands are connected together by attaching the first Velcro to the second Velcro, so that the shield can be worn on the user's arm, making it convenient to carry. Attached Figure Description
[0017] Figure 1 This is a perspective view of a wireless portable shielding device proposed in this utility model;
[0018] Figure 2 This is a bottom view of a wireless portable shielding device proposed in this utility model;
[0019] Figure 3 This is a side view of a wireless portable shielding device proposed in this utility model;
[0020] Figure 4This is a schematic diagram of the internal structure of the charging port of a wireless portable shielding device proposed in this utility model.
[0021] Figure 5 This is a schematic diagram of the hook and loop structure of a wireless portable shielding device proposed in this utility model.
[0022] Legend:
[0023] 1. Shielding device; 2. Metal plate; 3. Telescopic antenna; 4. Metal ring; 5. First elastic band; 6. Cover plate; 7. Second elastic band; 8. First Velcro; 9. Second Velcro; 10. Heat dissipation grille; 11. Pressing plate; 12. Charging port; 13. Insert plate; 14. Positioning block; 15. Hook and loop; 16. Rotating plate; 17. Rotating rod. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Reference Figures 1-3 This utility model provides an embodiment of a portable wireless shielding device, comprising a shielder 1. A charging port 12 is located in the center of the bottom side of the shielder 1, allowing an external charger to be connected and charged. Two metal plates 2 are fixedly connected to the left side of the top side of the shielder 1. A telescopic antenna 3 is rotatably connected between the two metal plates 2 via a damping shaft. The telescopic antenna 3 emits radio frequency signals at the same or similar frequencies as the target wireless signal, creating electromagnetic interference and preventing surrounding wireless devices from receiving and interpreting valid signals, thus achieving the shielding effect. Heat dissipation vents are located on both the left and right sides of the shielder 1. Heat dissipation grilles 10 are fixedly connected inside the heat dissipation vents to provide heat dissipation for the internal components of the shielder 1, and the heat dissipation grilles 10 prevent dust, sewage, and other contaminants from entering. (See reference...) Figures 2-4The bottom side of the shield 1 has a groove, and the charging port 12 is located inside the groove. A rotating rod 17 is fixedly connected to the rear side of the groove. A cover plate 6 is rotatably connected to the outer wall of the rotating rod 17. An insert plate 13 is fixedly connected to the top side of the cover plate 6. A slot is provided on the front side of the groove. A pressing plate 11 is connected to the front side of the insert plate 13 via a torsion spring. Both the insert plate 13 and the pressing plate 11 are inserted into the slot. A positioning groove is provided inside the slot. A positioning block 14 is fixedly connected to the front side of the pressing plate 11. The positioning block 14 engages inside the positioning groove. By rotating the cover plate 6, the insert plate 13 and the pressing plate 11 are inserted into the slot. During this process, due to the elasticity of the torsion spring, the pressing plate 11 is squeezed by the groove and rotates to one side of the insert plate 13, so that the pressing plate 11 can move with the groove. Insert plate 13 is inserted into the slot. After insertion, the elasticity of the torsion spring causes the pressing plate 11 to spring back to the position that fits against the inner wall of the slot, thereby causing the positioning block 14 to engage in the positioning groove. This prevents the pressing plate 11 from dislodging from the slot, thus preventing the cover plate 6 from rotating and causing the charging port 12 to open. The cover plate 6 then seals the charging port 12 to prevent dirt from entering and damaging it. When it is necessary to open the charging port 12 for charging, simply press the pressing plate 11 to overcome the resistance of the torsion spring and rotate it to one side of the insert plate 13, causing the positioning block 14 to dislodge from the positioning groove. Then rotate the cover plate 6 to open the charging port 12, and charging can then be performed. After charging is complete, repeat the above process to close the charging port 12.
[0026] Reference Figure 1 , Figure 2 and Figure 5A metal ring 4 is fixedly connected to the top side of the shield 1. Two hooks 15 are installed inside the metal ring 4. One side of each hook 15 is connected to a rotating plate 16 via a torsion spring. The two hooks 15 are connected by a first elastic band 5. By wrapping the first elastic band 5 around the waist and then hooking the other hook 15 into the metal ring 4, the first elastic band 5 is connected into a loop, allowing the shield 1 to be wrapped around the waist for easy carrying by the staff. The steps for hooking the hook 15 into the metal ring 4 are as follows: Press the rotating plate 16 to overcome the resistance of the torsion spring, causing one end to rotate into the inside of the hook 15, thus opening an opening in the hook 15. Then, insert the metal ring 4 through this opening into the hook 15. Release the rotating plate 16 so that it automatically springs back under the action of the torsion spring, thus sealing the hook 15 and hooking it onto the metal ring 4. Two second elastic bands 7 are fixedly connected to the rear side of the shielding device 1. A first Velcro 8 is fixedly connected to the rear side of the left second elastic band 7, and a second Velcro 9 is fixedly connected to the front side of the right second elastic band 7. The first Velcro 8 and the second Velcro 9 cooperate with each other. By wrapping the two second elastic bands 7 around the arm, and adjusting the fit of the first Velcro 8 and the second Velcro 9 according to the arm's thickness, the first Velcro 8 is then attached to the second Velcro 9 to connect the two second elastic bands 7 together, allowing the shielding device 1 to be worn on the user's arm for easy carrying. Both the first elastic band 5 and the second elastic band 7 have high elasticity to automatically expand and contract to adapt to different users. The torsion springs in this design are all of a type with large elastic potential energy to prevent the corresponding structure from loosening.
[0027] Working principle: First, wrap the first elastic band 5 around the waist. Then, press the rotating plate 16 to overcome the resistance of the torsion spring, causing one end to rotate into the hook 15, thus opening a gap in the hook 15. Next, insert the metal ring 4 through this gap into the hook 15. Then, release the rotating plate 16 so that it automatically springs back under the action of the torsion spring, sealing the hook 15. The hook 15 then hooks onto the metal ring 4, connecting the first elastic band 5 into a loop. The first elastic band 5, carrying the shielding device 1, wraps around the waist, allowing the shielding device 1 to be worn for carrying. Alternatively, wrap the two second elastic bands 7 around the arm, adjusting the fit of the first Velcro 8 and second Velcro 9 according to the arm's thickness. Then, attach the first Velcro 8 to the second Velcro 9 to connect the two second elastic bands 7 together, allowing the shielding device 1 to be worn on the user's arm for easy carrying. When charging is needed, press the button... The pressure plate 11 causes the pressing plate 11 to overcome the resistance of the torsion spring and rotate to one side of the insertion plate 13, causing the positioning block 14 to disengage from the positioning groove. Then, the cover plate 6 is rotated to open the charging port 12, and charging can then begin. After charging is complete, the cover plate 6 is rotated to insert the insertion plate 13 and the pressing plate 11 into the slot. During this process, the elasticity of the torsion spring causes the pressing plate 11 to be squeezed by the groove and rotate to one side of the insertion plate 13, so that the pressing plate 11 can be inserted into the slot along with the insertion plate 13. After being inserted into the slot, the elasticity of the torsion spring causes the pressing plate 11 to spring back to the position that fits against the inner wall of the slot, so that the positioning block 14 is engaged in the positioning groove, thereby preventing the pressing plate 11 from disengaging from the slot and preventing the cover plate 6 from rotating and causing the charging port 12 to open. The cover plate 6 seals the charging port 12 to prevent dirt from entering the charging port 12 and causing damage to the charging port 12. The working principle and specific structure of the shield 1 are as follows: The shield 1 mainly works based on radio frequency interference technology. Within a certain frequency range, wireless devices such as mobile phones communicate with base stations using radio waves of specific frequencies. When a small jammer is working, it emits interference signals at the same frequency as the target device but with a higher intensity. It scans from the low-frequency band to the high-frequency band of the forward channel at a specific speed, creating scrambled interference when the device receives the signal, making it unable to detect normal data, thus blocking the connection with the base station. For example, a mobile phone will show a "no signal" or "no service" status. Internally, it has a radio frequency module responsible for generating and processing electromagnetic wave signals, including components such as a radio frequency generator, amplifier, and filter to ensure accurate, stable, and sufficient signal frequency and power. The control unit is like the "brain," regulating the working state of the radio frequency module and adjusting parameters such as signal frequency, phase, and power. The power system supplies power to the device; portable devices often use batteries. The antenna bears the heavy responsibility of emitting interference signals; common examples include omnidirectional antennas that can transmit signals in all directions to meet the needs of large-area shielding.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wireless portable shielding device, characterized in that: The shield includes a shield (1), a charging port (12) is provided in the middle of the bottom side of the shield (1), a sealing component is provided on the bottom side of the shield (1) to seal the charging port (12), two metal plates (2) are fixedly connected to the left side of the top side of the shield (1), and a telescopic antenna (3) is rotatably connected between the two metal plates (2) through a damping shaft. A portable component is provided on the top side of the shield (1) to facilitate the carrying of the shield (1). Heat dissipation vents are provided on both the left and right sides of the shield (1), and heat dissipation grilles (10) are fixedly connected inside the heat dissipation vents.
2. The wireless portable shielding device according to claim 1, characterized in that: The enclosure includes a groove formed on the bottom side of the shield (1), the charging port (12) is located inside the groove, a rotating rod (17) is fixedly connected to the rear side inside the groove, and a cover plate (6) is rotatably connected to the outer wall of the rotating rod (17).
3. A wireless portable shielding device according to claim 2, characterized in that: The top side of the cover plate (6) is fixedly connected to the insert plate (13), the front side of the groove is provided with a slot, and the front side of the insert plate (13) is connected to the pressing plate (11) by a torsion spring.
4. A wireless portable shielding device according to claim 3, characterized in that: The insert plate (13) and the pressing plate (11) are both inserted into the inside of the slot. The inside of the slot is provided with a positioning groove. The front side of the pressing plate (11) is fixedly connected to a positioning block (14), which is engaged inside the positioning groove.
5. A wireless portable shielding device according to claim 1, characterized in that: The portable component includes a metal ring (4) fixedly connected to the top side of the shield (1), and two hooks (15) are provided inside the metal ring (4).
6. A wireless portable shielding device according to claim 5, characterized in that: One side of the hook (15) is connected to a rotating plate (16) by a torsion spring, and the two hooks (15) are connected by a first elastic band (5).
7. A wireless portable shielding device according to claim 6, characterized in that: The shield (1) has two second elastic bands (7) fixedly connected to its rear side. The second elastic band (7) on the left side is fixedly connected to a first Velcro (8), and the second elastic band (7) on the right side is fixedly connected to a second Velcro (9). The first Velcro (8) and the second Velcro (9) cooperate with each other.