CN111682922B - Portable signal shielding fast networking equipment - Google Patents
Portable signal shielding fast networking equipment Download PDFInfo
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- CN111682922B CN111682922B CN202010367242.XA CN202010367242A CN111682922B CN 111682922 B CN111682922 B CN 111682922B CN 202010367242 A CN202010367242 A CN 202010367242A CN 111682922 B CN111682922 B CN 111682922B
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- 230000006855 networking Effects 0.000 title claims abstract description 70
- 229910052751 metal Inorganic materials 0.000 claims abstract description 85
- 239000002184 metal Substances 0.000 claims abstract description 85
- 239000004744 fabric Substances 0.000 claims abstract description 60
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 230000005855 radiation Effects 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
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- 238000004891 communication Methods 0.000 description 7
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- 230000009471 action Effects 0.000 description 3
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- 238000012986 modification Methods 0.000 description 2
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/60—Jamming involving special techniques
- H04K3/68—Jamming involving special techniques using passive jamming, e.g. by shielding or reflection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/40—Jamming having variable characteristics
- H04K3/43—Jamming having variable characteristics characterized by the control of the jamming power, signal-to-noise ratio or geographic coverage area
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention provides portable signal shielding rapid networking equipment, belonging to the field of shielding equipment manufacture; the invention comprises the following steps: a notebook computer and a shielding device; the shielding device is fixed on the notebook computer; the shielding device includes: the antenna comprises a shell, a networking antenna, a shielding device and an interference antenna; the shielding device is arranged in the shell, and the networking antenna and the plurality of interference antennas are electrically connected with the shielding device; the shell is a flat metal shell with openings on two sides; a metal fabric capable of blocking wireless signals is arranged in the shell; the metal fabric can enable the shell to form two cavities with C-shaped sections; the networking antenna and the interference antenna are arranged on two sides of the metal fabric and are both arranged in the accommodating cavity. According to the invention, the metal fabric capable of blocking electromagnetic wave propagation in one direction is arranged in the metal shell, so that the working range of the interference antenna and the networking antenna can be limited, and a certain wireless signal can be locally maintained while the signal in a specific area is interfered.
Description
Technical Field
The invention relates to a communication equipment manufacturing technology, in particular to a portable signal shielding rapid networking device, and belongs to the technical field of signal shielding device manufacturing.
Background
Along with the rapid development of mobile communication devices, the functions of terminal devices are continuously enhanced, and the dependence of people on the mobile communication devices is gradually increased.
As wireless communication technology has matured, more and more products use wireless communication for transmission or remote control. Such as cell phones, wearable devices, drones, and the like. However, open temporary/specific areas (e.g., outdoor showplace, competition floor, examination floor, etc.) may require wireless communication restrictions (e.g., prohibiting phone calls, messaging, etc.) for a specific period of time to ensure activity value and safety for these areas.
The existing shielding devices are all omni-directional shielding devices, although signals of mobile communication equipment can be shielded, the whole area is in a shielded state, the generated electromagnetic wave power is large, the radiation is strong, the consumed power is large, however, the specific electromagnetic signals are difficult to shield in specific space in specific directions, and a plurality of shielding devices are usually required to be carried.
Disclosure of Invention
The invention provides novel portable signal shielding rapid networking equipment, which solves the technical problems of high signal shielding energy consumption, poor directivity and difficult equipment adjustment in the prior art by arranging a shielding device on a display of a portable computer and dividing a shielding area by utilizing metal fabrics.
The portable signal shielding rapid networking device of the embodiment of the invention comprises: a notebook computer and a shielding device; the shielding device is fixed on the notebook computer;
the shielding device includes: the antenna comprises a shell, a networking antenna, a shielding device and a plurality of interference antennas with different frequencies; the shielding device is arranged in the shell, and the networking antenna and the interference antennas are electrically connected with the shielding device;
the shell is a flat metal shell with openings on two sides, and plastic plates are covered on the openings; a metal fabric for blocking wireless signals is arranged in the shell;
the metal fabric is provided with an upper end and a lower end, and is arranged on the inner wall of the shell in a foldable way through the upper end; the lower end is a free end; the free end is contacted with the inner wall of the other side of the shell to block wireless signals between the two openings and enable the shell to form two cavities with C-shaped sections;
the networking antenna and the interference antennas are respectively arranged on two sides of the metal fabric and are both arranged in the accommodating cavity.
In another embodiment of the invention, the portable signal shielding rapid networking device is characterized in that two mutually parallel track shafts are arranged in the shell, and each track shaft is sleeved with a cylindrical spring; the left side and the right side of the metal fabric are respectively arranged on the cylindrical spring;
the metal fabric slides on the track shaft through the cylindrical spring so that both ends of the metal fabric are in contact with the inner wall of the shell.
In another embodiment of the invention, the portable signal shielding rapid networking device, wherein the networking antenna and the interference antenna are provided with a base, and a sliding rail is arranged in the shell; the base slides on the sliding rail to be close to or far away from the metal fabric.
In another embodiment of the invention, a portable signal shielding rapid networking device is provided, wherein a rotatable rubber roller is fixedly arranged at one end of the sliding rail; the rubber roller is wound with a pull rope and is connected with the base through the pull rope;
the rubber roller is arranged close to the track shaft and can be contacted with the cylindrical spring; the cylindrical spring stretches and slides along the track shaft so as to rotate the rubber roller, so that a pull rope on the rubber roller pulls the base, and the interference antenna or the networking antenna is close to the metal fabric.
In another embodiment of the invention, a portable signal shielding rapid networking device is provided, wherein a bracket is fixed on the sliding rail, and the rubber roller is installed on the sliding rail through the bracket;
and a reset spring used for enabling the base to be far away from the metal fabric is arranged between the support and the base.
In another embodiment of the invention, a portable signal shielding fast networking device, wherein the notebook computer is provided with a foldable display, and the shielding device is fixed on the back of the display;
the outside of shielding device still is provided with laser range finder, and this laser range finder with the radiation direction of interference antenna is the same.
In another embodiment of the invention, the portable signal shielding rapid networking device is characterized in that electromagnetic wave shielding paint is sprayed in the metal shell; the metal fabric is a conductive metal net woven by metal fibers;
the opening of the shell is provided with an inward folded metal flange, and the plastic plate is fixed on the shell through the metal flange.
In another embodiment of the present invention, a portable signal shielding rapid networking device is provided, wherein a pull wire is provided on the metal fabric, and a lock catch for sleeving and locking the pull wire is provided on the housing.
In another embodiment of the invention, a portable signal shielding fast networking device, wherein the shield has a power line and a data line; the notebook computer is provided with a power supply and a data interface;
the shielding device is electrically connected with the power supply through the power line; the shielding device is connected with the data interface through the data line.
In another embodiment of the invention, the portable signal shielding rapid networking device is characterized in that a ball head is arranged at the bottom of the interference antenna, and a connecting sleeve is wrapped outside the ball head; the ball head is movably connected in the connecting sleeve, and the interference antenna is arranged in the shell through the connecting sleeve.
The invention adopts the metal cavity with two open ends so as to limit the release range of the interference electromagnetic wave, and the interference signal radiates outwards from the two openings of the shell under the state that the metal fabric is not opened, so that two larger fan-shaped areas can be basically covered; under special requirements, the metal fabric cuts off the whole shell to form two shielding cases with C-shaped structures, signals of the interference antenna are radiated in a fan shape only in one direction, so that an interference ineffective area is formed at the other side of the interference antenna, and a low-power networking antenna can be started in the area, so that network coverage is locally realized.
The invention combines the shielding device with the notebook computer, can visually analyze the signal shielding condition in real time, can provide the power supply of the shielding device, and has excellent practicality and concealment.
According to the invention, the metal fabric capable of blocking electromagnetic wave propagation in one direction is arranged in one metal shell, so that the working ranges of the interference antenna and the networking antenna can be limited, and a certain wireless signal can be locally maintained while the signal in a specific area is interfered.
Drawings
Fig. 1 is a schematic structural diagram of a portable signal shielding fast networking device according to an embodiment of the present invention;
fig. 2 is a schematic side structural diagram of a portable signal shielding rapid networking device according to an embodiment of the present invention;
FIG. 3 is a side view of a shielding device of a portable signal shielding fast networking device according to an embodiment of the present invention;
FIG. 4 is a rear block diagram of a portable signal shielding fast networking device according to an embodiment of the present invention;
fig. 5 is an enlarged view of a portion of the rubber roller of fig. 4.
Detailed Description
The portable signal shielding rapid networking device of the invention can be made of the following materials, and is not limited to the following materials, for example: metal fabrics, plastic plates, aluminum alloys, plastics, signal shields, signal antennas, and the like.
Fig. 1 is a side view of a portable signal shielding rapid networking device according to an embodiment of the present invention, and is combined with fig. 2 to 4; the device is mainly used for shielding wireless signals in specific areas such as outdoors, conference rooms and the like and covering wireless networks.
The portable signal shielding rapid networking device of the embodiment of the invention comprises: a notebook computer 1 and a shielding device 3; the shielding device 3 is fixed on the notebook computer 1; in the actual process, the device of the invention can be modified on the basis of any existing notebook computer.
In general, the notebook computer 1 has a foldable display 20, and the display 20 is usually disposed on a foldable cover 2 of the notebook computer 1; the shielding device 3 is fixed on the back of the display 20; thus, the angle of the shielding device 3 can be conveniently controlled, and no additional support is needed.
The cover plate 2 has a hinge shaft 21, and is mounted on the notebook computer 1 through the hinge shaft 21, and a damping device is provided on the hinge shaft 21 to facilitate the opening and closing angle of the temperature cover plate.
As shown in fig. 3, a laser distance meter 49 is further disposed on the outer side of the shielding device 3, and the laser distance meter 49 has the same radiation direction as the interference antenna 6. The laser rangefinder 49 is generally perpendicular to the back of the cover plate 2.
In the use, the laser range finder helps measuring and monitoring the coverage radius of the interference antenna 6, and can also visually adjust the interference angle of the interference antenna so as to be convenient to use.
As shown in fig. 3 and 4, the shielding device includes: a housing 4, a networking antenna 5, a shielding 7 and a plurality of interference antennas 6 with different frequencies; the shield 7 is installed in the housing 4, and the shield 7 is closely contacted with the inside of the metal housing 4 to facilitate heat dissipation.
The shielding device generally comprises a mobile phone signal shielding device, a wireless network signal shielding device, a Bluetooth shielding device and the like; the present embodiment includes the special shield for the above various purposes as the case may be.
The shielding device of the embodiment further comprises a wireless router module for connecting with a networking antenna due to networking requirements, and the coverage of WiFi signals is realized through the networking antenna.
Taking a mobile phone signal shielding device as an example: the product is common in the market, and the action frequency is as follows: 869-894 MHz; 825-960 MHz; 1805-1880 MHz, 1900-1990 MHz, etc. The active frequency bands are CDMA800, GSM900, DCS1800 and PCS1900. The range of about 40 meters in diameter can be controlled, and the power supply is powered by a 5V power supply, which is the same as that of a notebook computer.
When the mobile phone works, the mobile phone and the base station are connected through radio waves in a certain frequency range, and data and sound transmission is completed in a certain baud rate and modulation mode. Aiming at the communication principle, the mobile phone signal shielding device scans from the low-end frequency to the high-end frequency of a forward channel at a certain speed in the working process. The scanning speed can form disorder code interference in a message signal received by the mobile phone, and the mobile phone cannot detect normal data sent from the base station, so that the mobile phone cannot establish connection with the base station. The mobile phone shows the phenomena of network searching, no signal, no service system and the like.
The networking antenna 5 and the plurality of interference antennas 6 are electrically connected with the shielding device 7; that is, the structures of the interference antenna and the networking antenna are basically the same, but the resonance and the wave bands of the electromagnetic wave radiation are different according to the different purposes, and the radiated signals come from the shielding 7 (the functions of the signals come from various signal generating modules or modules in the shielding, and the signal modules or footbath are products in the prior art).
The mask 7 functions as signal generation and modulation.
The mask 7 generally includes a plurality of signal generating modules for generating a multi-band mask signal, and the signal generating modules are electrically connected to an external transmitting antenna (the networking antenna 5 or the interference antenna 6) so as to transmit the mask (or networking) signal.
In fig. 3 of the present invention, only 1 interference antenna is shown, and in the actual use process, more interference antennas may be set to realize coverage of different more shielding signal frequency bands.
The shell 4 is a flat metal shell with openings on two sides, and the openings are covered with plastic plates 41; the plastic plate 41 serves to prevent dust and to facilitate electromagnetic waves to radiate therefrom.
A metal fabric 8 capable of blocking wireless signals is arranged in the shell; the metal fabric 8 has a dense net structure and has conductivity and electromagnetic blocking effect.
The metal fabric 8 has an upper end and a lower end, and the metal fabric 8 is mounted on the inner wall of the shell 4 in a foldable manner through the upper end; the lower end of the metal fabric is a free end; the free end is contacted with the inner wall of the other side of the shell 4 to block wireless signals between the two openings and enable the shell 4 to form two cavities with C-shaped sections.
It should be noted that when the metal fabric blocks the two ends of the whole shell, all edges (upper and lower ends and left and right sides) of the metal fabric are conducted with the inner wall of the shell, so as to avoid failure of electromagnetic wave blocking effect.
As shown in fig. 3, the metal fabric makes the spaces in the openings on both sides of the shell independent from each other, so that two symmetrical C-shaped cavities are formed, and such cavities form an electromagnetic shielding cover in fact, so that electromagnetic waves can radiate outwards from the openings.
The networking antenna 5 and the interference antennas 6 are respectively arranged at two sides of the metal fabric 8 and are both arranged in the accommodating cavity.
Therefore, under the condition of shielding specific signals, the metal fabric is opened, so that the shell is divided into two symmetrical shielding covers; a shielding signal can be generated on one side to shield the signal in the specified area; the other side can also generate other wireless signals with effective and different frequencies for use; by controlling the power of the interference antenna and the signal antenna, even in the same frequency band, invalid signals can be generated in a small range near the notebook computer, and interference signals can be generated in a large range.
The interference signal is blocked by the metal fabric and the shell, and only the signals in a specific angle range and the direction are blocked or interfered, so that the directional wireless communication shielding is formed.
The housing in this embodiment can be rotated to change its opening orientation, changing the direction of influence of the signal shielding device.
In addition, the shielding device may include control units configured to turn on or off the power and frequency band of the interfering antenna for a specific period of time. Thus, the setting of the pointing direction and the operation time with high elasticity can be provided.
The portable signal shielding rapid networking device of this embodiment is characterized in that two mutually parallel track shafts 48 are arranged in the housing 4, and the two track shafts 48 are respectively positioned at the left side and the right side of the housing 4 and are close to the edges of the housing. The track shaft 48 is made of metal and is communicated with the shell.
A cylindrical spring 80 is sleeved on each track shaft 48; the left and right sides of the metal fabric 8 are respectively mounted on the cylindrical springs 80.
The metal fabric 8 is slid on the rail shaft 48 by the cylindrical spring 80 (in the sliding process of fig. 4) so that both ends of the metal fabric 8 are in contact with the inner wall of the housing 4.
The whole metal fabric is folded and opened in a sliding mode, so that the metal fabric is smoother, simpler and more convenient to operate and lower in resistance in the actual use process.
Typically, the metal fabric 8 is provided with a traction wire 81, and the housing 4 is provided with a lock catch 82 for sleeving and locking the traction wire 81.
The traction wire 81 passes through the lock catch 82 and can be manually pulled outside the shell 4, so that the operation is very convenient, and after the traction wire is pulled to a specified position, the lower end of the metal fabric is mutually attached to the shell, thereby playing a role in blocking electromagnetic waves.
As shown in fig. 5, in the portable signal shielding rapid networking device of this embodiment, the networking antenna 5 and the interference antenna 6 are both provided with a base 56, and the housing 4 is provided with a sliding rail 44; the base 56 slides on the slide rail 44 to approach or depart from the metal fabric 8.
The general wavelength range of the networking antenna 5 and the interference antenna 6 is 1-37.5cm (the common wireless signal shielding wave band), and the thickness of the shell is 15-40cm; therefore, the closer the networking antenna 5 and the interference antenna 6 are to the metal fabric in the cavity, the worse the diffraction effect at the opening of the shell, the better the directivity; conversely, the closer to the opening of the housing, the wider the coverage.
Specifically, a rotatable rubber roller 9 is fixedly mounted at one end of the sliding rail 44; the rubber roller 9 is wound with a pull rope 90 and is connected with the base 56 through the pull rope 90; the rubber roller 9 rotates, wrapping around the stretch 90, to pull the base 56 close to itself.
The rubber roller 9 is arranged close to the track shaft 48 and can be contacted with the cylindrical spring 80; after the cylindrical spring 80 is stretched, it gradually slides along the track shaft 48; before reaching the lower end of the housing, the cylindrical spring 80 contacts the rubber roller 9 and rotates the rubber roller, so that the pull cord 90 on the rubber roller 9 is retracted due to the winding action to shorten the length, and the pull cord 90 pulls the base 56, thereby bringing the interference antenna 6 or the networking antenna 5 close to the metal fabric 8.
Further, a bracket 45 is fixed on the sliding rail 44, and the rubber roller 9 is installed on the sliding rail 44 through the bracket 45; obviously, the bracket 45 is disposed closer to the rail shaft 48.
A return spring 91 for moving the base 56 away from the metal fabric 8 is provided between the bracket 45 and the base 56.
In this way, it can be ensured that after the metal fabric 8 is retracted, the base can automatically return to the initial position, so that the networking antenna 5 and the interference antenna 6 are closer to the opening of the housing 4, and further a wider signal (or interference signal) coverage is realized.
In the embodiment, due to the sliding opening effect of the metal fabric, the positions of the networking antenna 5 and the interference antenna 6 are synchronously adjusted in the sliding process, so that the directivity effect of the shielding cover formed in the shell is better; one action brings about a better signal directivity adjustment effect.
Similarly, after the metal fabric is folded, the shell body has a certain effect of limiting electromagnetic waves, and the networking antenna 5 and the interference antenna 6 are closer to the opening, so that the radiation breadth is maximized, and the coverage area of signals (or interference signals) is larger.
The portable signal shielding rapid networking device of the embodiment is characterized in that electromagnetic wave shielding paint is sprayed in the metal shell 4; the metal fabric 8 is a conductive metal net woven by metal fibers; the metal fiber can be embedded into the fabric, so that the fabric can achieve a good electromagnetic wave shielding effect. The metal fabric made of the metal fiber has wide application in military, aviation, communication, confidential shielding environment and other aspects.
An inwardly folded metal flange 40 is provided at the opening of the housing 4, and the plastic plate 41 is fixed to the housing 4 through the metal flange 40. The metal rib 40 can enhance the strength of the entire housing 4 and can also enhance the directivity effect of the shield formed in the housing.
The portable signal shielding rapid networking device of the embodiment, the shielding device 7 is provided with a power line and a data line; the notebook computer 1 is provided with a power supply and a data interface; the shield 7 is electrically connected with the power supply through the power line; the shielding device is connected with the data interface through the data line.
Obviously, the bottom of one side of the shell is provided with an external power line for connecting with a power supply of an external notebook computer.
The shell 4 and the shielding device 7 are fixedly bonded, and a heat dissipation silicone grease layer is preferably arranged between the shell 4 and the shielding device, so that the heat dissipation effect is improved.
The device of the embodiment of the invention can share the power supply with the notebook computer. The built-in lithium battery of the notebook computer is generally adopted, and the notebook computer is charged by using a power adapter after the electricity is used up; in the case of external power supply, 220V voltage supply can be used, and in the case of onboard vehicles, 12-36V voltage supply is generally used.
In addition, a ball head is arranged at the bottom of the interference antenna 6, and a connecting sleeve is wrapped outside the ball head; the ball head can be movably connected in the connecting sleeve, and the interference antenna is arranged in the shell 4 through the connecting sleeve. Due to the design of the ball head, the inclination angle of the interference antenna is adjusted during maintenance, so that self interference of a plurality of antennas in the use process is avoided.
The outside of the notebook computer 1 of the present embodiment is further provided with a wear-resistant wrap angle 10 to increase wear resistance and drop resistance.
Under the condition of being matched with various interference antennas, the invention can shield GPRS, GSM, DCS, CDMA, PDC, TDMA, PHS, PCS, W-CDMA and other mobile phone signals within the radius range of 5-10 meters, so that the handheld equipment cannot be beaten out or answered, and the handheld equipment leaves the shielding range, thus being capable of recovering normal use.
The invention is suitable for offices, hotels, houses, bathrooms, automobiles, wide public service personnel, business trip hotel people, leisure and entertainment place consumer, security guard personnel, bank card user, young women and other places needing to prevent the eavesdropping and eavesdropping; the mobile phone can be used in hospitals, meeting rooms, concert halls, movie theaters, schools, libraries, examination rooms, churches and other places needing to prevent the interference of the mobile phone and keep quiet.
One or more of the networking antenna and the interference antenna in the embodiment can be selectively turned on; independently opening a networking antenna for networking and covering local wireless signals; when a single interference antenna is started, wireless signals of a certain frequency band can be interfered, and when a plurality of interference antennas are started, signals of a plurality of frequency bands can be shielded.
The invention has the following advantages:
1. the PC computer, the router and the signal shielding device are integrated together, so that the problem of difficult carrying is solved, the trouble of constructing a local area network is solved, and the equipment is convenient to carry;
2. the centralized power supply mode is used, so that the dependence of an external power supply is solved, and the mobile power supply can be used;
3. a signal shielding device is added to solve the problem of cheating in measurement and evaluation;
4. the anti-falling and dustproof properties are improved, and the anti-falling and dustproof anti-falling protective device can be used in multiple environments.
In addition, the portable signal shielding rapid networking equipment disclosed by the invention is low in modification cost, compact in structural design, ingenious in structure, stable in finished product quality, attractive in appearance, convenient to use and carry, and suitable for various types of outdoor wireless signal networking and signal shielding operations.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments. From the description of the above embodiments, it will be apparent to those skilled in the art that the above example methods may be implemented by means of a superposition of some variants plus the necessary general techniques; of course, the method can also be realized by simplifying some important technical features. Based on such understanding, the technical solution of the present invention essentially or partly contributes to the prior art is: overall function and construction, and in combination with the construction described in connection with the various embodiments of the invention.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. A portable signal shielding fast networking device, comprising: a notebook computer and a shielding device; the shielding device is fixed on the notebook computer;
the shielding device includes: the antenna comprises a shell, a networking antenna, a shielding device and a plurality of interference antennas with different frequencies; the shielding device is arranged in the shell, and the networking antenna and the interference antennas are electrically connected with the shielding device; the shield further comprises: a wireless router module; the shielding device is connected with the networking antenna through the wireless router module;
the shell is a flat metal shell with openings on two sides, and plastic plates are covered on the openings; a metal fabric for blocking wireless signals is arranged in the shell;
the metal fabric is provided with an upper end and a lower end, and is arranged on the inner wall of the shell in a foldable way through the upper end; the lower end is a free end; the free end is contacted with the inner wall of the other side of the shell to block wireless signals between the two openings and enable the shell to form two cavities with C-shaped sections;
the networking antenna and the interference antennas are respectively arranged at two sides of the metal fabric and are both arranged in the accommodating cavity;
two mutually parallel track shafts are arranged in the shell, and each track shaft is sleeved with a cylindrical spring; the left side and the right side of the metal fabric are respectively arranged on the cylindrical spring;
the metal fabric slides on the track shaft through the cylindrical spring so that two ends of the metal fabric are in contact with the inner wall of the shell;
the networking antenna and the interference antenna are provided with bases, and sliding rails are arranged in the shell; the base slides on the sliding rail to be close to or far away from the metal fabric;
a rotatable rubber roller is fixedly arranged at one end of the sliding rail; the rubber roller is wound with a pull rope and is connected with the base through the pull rope;
the rubber roller is arranged close to the track shaft and is contacted with the cylindrical spring; the cylindrical spring stretches and slides along the track shaft to rotate the rubber roller, so that a pull rope on the rubber roller pulls the base, and the interference antenna or the networking antenna is close to the metal fabric;
a bracket is fixed on the sliding rail, and the rubber roller is arranged on the sliding rail through the bracket;
and a reset spring used for enabling the base to be far away from the metal fabric is arranged between the support and the base.
2. The portable signal shielding rapid networking device of claim 1, wherein the notebook computer has a foldable display, the shielding means being secured to the back of the display;
the outside of shielding device still is provided with laser range finder, and this laser range finder with the radiation direction of interference antenna is the same.
3. The portable signal shielding rapid networking device of claim 1, wherein electromagnetic wave shielding paint is sprayed in the metal shell; the metal fabric is a conductive metal net woven by metal fibers;
the opening of the shell is provided with an inward folded metal flange, and the plastic plate is fixed on the shell through the metal flange.
4. The portable signal shielding fast networking device of claim 1, wherein the metal fabric is provided with a traction wire, and the shell is provided with a lock catch for sleeving and locking the traction wire.
5. The hand-held signal shield fast networking device of claim 1, wherein the shield has a power line and a data line; the notebook computer is provided with a power supply and a data interface;
the shielding device is electrically connected with the power supply through the power line; the shielding device is connected with the data interface through the data line.
6. The portable signal shielding rapid networking device according to claim 1, wherein the bottom of the interference antenna is provided with a ball head, and a connecting sleeve is wrapped outside the ball head; the ball head is movably connected in the connecting sleeve, and the interference antenna is arranged in the shell through the connecting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010367242.XA CN111682922B (en) | 2020-04-30 | 2020-04-30 | Portable signal shielding fast networking equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010367242.XA CN111682922B (en) | 2020-04-30 | 2020-04-30 | Portable signal shielding fast networking equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111682922A CN111682922A (en) | 2020-09-18 |
| CN111682922B true CN111682922B (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010367242.XA Active CN111682922B (en) | 2020-04-30 | 2020-04-30 | Portable signal shielding fast networking equipment |
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| CN112887052B (en) * | 2021-02-24 | 2023-01-17 | 南方电网调峰调频发电有限公司信息通信分公司 | Mobile anti-interference equipment for telephone conference |
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| CN111682922A (en) | 2020-09-18 |
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