CN210693952U - Hidden type installation box and wireless signal shielding device thereof - Google Patents
Hidden type installation box and wireless signal shielding device thereof Download PDFInfo
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- CN210693952U CN210693952U CN201921700639.5U CN201921700639U CN210693952U CN 210693952 U CN210693952 U CN 210693952U CN 201921700639 U CN201921700639 U CN 201921700639U CN 210693952 U CN210693952 U CN 210693952U
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Abstract
The utility model discloses a hidden type installation box and a wireless signal shielding device thereof, wherein the hidden type installation box comprises an installation box, the installation box is covered outside a wireless signal shielding device, the wireless signal shielding device is installed on a fixed plate, a hinge block is fixed on the fixed plate, and a second hinge shaft passes through one end of the installation box and the hinge block and can be assembled with the installation box in a circumferential rotation manner; a locking block is fixed on the inner side of one end, far away from the second cross shaft, of the mounting box, a locking groove is formed in the locking block, and the locking groove is clamped and assembled with one end, provided with a locking rod inclined surface, of the locking rod; the lock rod is a rack which penetrates through the guide cylinder and the support plate and then is meshed with the first gear; the guide cylinder is fixed on the bottom surface of the support plate, a guide clamping ring is arranged on the part of the lock rod positioned in the guide cylinder, and a pressure spring is sleeved on the part of the lock rod positioned between the guide clamping ring and the support plate; the guide clamping ring is clamped with the guide clamping groove and can be assembled in a sliding mode, and the guide clamping groove is arranged in the guide cylinder; the first gear is arranged on the first driving shaft; the first drive shaft is driven by a motor.
Description
Technical Field
The utility model relates to an installation of radio signal shielding ware especially relates to a hidden install bin and radio signal shield assembly thereof.
Background
With the increasing of electronic devices, various cheating devices are continuously updated, but basically, the cheating devices communicate with the outside through wireless signals, so that cheating is performed by outside personnel. For this reason, shielding the wireless signals in the examination field is a very effective anti-cheating means. At present, a wireless signal shielding device is mainly used for regional wireless signal shielding, but the characteristics of the wireless signal shielding device are too obvious and can be easily recognized, so that the wireless signal shielding device is easily damaged or tampered, and the wireless signal shielding device cannot shield signals or cannot shield wireless signals of a certain frequency band. Although the protection box can be covered outside the wireless signal shielding device for protection at present, the protection box is very obvious and has no better anti-disassembly design, so that the wireless signal shielding device is still easy to be damaged or tampered, and the wireless signal shielding fails or is incomplete. Even if the operator sets the setting directly by the worker, the operator cannot be responsible for the cheating even if he knows that the wireless signal shielding device is set at last because there is no device for detecting the opening of the protection box.
To this end, the inventor proposes a hidden type installation box and a wireless signal shielding device thereof, wherein the installation box is covered outside the wireless signal shielding device (wireless signal shielding device) so as to protect the wireless signal shielding device, and a special motor unlocking mechanism and a micro switch for detecting whether the installation box is opened are additionally arranged, so that whether the installation box is opened is judged, and the condition of abnormal opening is timely found so as to prevent the wireless signal shielding device from being tampered and blamed for people.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects of the prior art, the technical problem to be solved in the utility model is to provide a hidden install bin and radio signal shield assembly thereof.
In order to achieve the purpose, the utility model provides a hidden type installation box, which comprises an installation box, wherein the installation box is covered outside a wireless signal shielding device, the wireless signal shielding device is installed on a fixed plate, a hinge block is fixed on the fixed plate, and a second hinge shaft passes through one end of the installation box and the hinge block and can be assembled with the hinge block in a circumferential rotation manner; a locking block is fixed on the inner side of one end, far away from the second cross shaft, of the mounting box, a locking groove is formed in the locking block, and the locking groove is clamped and assembled with one end, provided with a locking rod inclined surface, of the locking rod;
the lock rod is a rack which penetrates through the guide cylinder and the support plate and then is meshed with the first gear; the guide cylinder is fixed on the bottom surface of the support plate, a guide clamping ring is arranged on the part of the lock rod positioned in the guide cylinder, and a pressure spring is sleeved on the part of the lock rod positioned between the guide clamping ring and the support plate; the guide clamping ring is clamped with the guide clamping groove and can be assembled in a sliding mode, and the guide clamping groove is formed in the guide cylinder; the first gear is mounted on a first drive shaft; first drive shaft passes through motor drive, and the motor is installed in the backup pad and still installs electric box in the backup pad, and the backup pad is close to still to be provided with the assembly plate on fixed plate one side, and the assembly plate passes through the bolt fastening on the fixed plate.
Preferably, a decorative plate is mounted on the outer end face of the mounting box, and patterns or photos for decoration are drawn on the decorative plate.
Preferably, the outer wall of one end of the installation box, which is far away from the second connecting shaft, is respectively fixed with two extension plates, an indicating plate, a protection plate and a buckle plate are arranged between the two extension plates, the first hinge shaft penetrates through the protection plate, and two ends of the first hinge shaft can be respectively assembled with the two extension plates in a circumferential rotation mode;
the protection plate is provided with a matching locking plate, the matching locking plate is provided with a buckle bulge, the buckle bulge is assembled with the buckle groove in a clamping manner, and the buckle groove is formed in the buckle plate; the indicating plate is provided with an indicating lamp, and the indicating lamp is used for displaying the working state of the wireless signal shielding device;
an indicator lamp circuit and an MCU are installed in the electric box, a control end of the indicator lamp circuit is in communication connection with a signal end of the MCU, and the indicator lamp circuit supplies power to the indicator lamp.
Preferably, two ends of the first driving shaft penetrate through the second vertical plate and the third vertical plate and are respectively assembled and fixed with the first power gear and the second clutch disc;
the first power gear is in meshing transmission with the second power gear, the second power gear is installed on an output shaft, and one end of the output shaft penetrates through the first vertical plate and then is installed in the motor; the first vertical plate, the second vertical plate and the third vertical plate are respectively fixed on the supporting plate.
Preferably, a trigger plate is fixed on the part of the lock rod above the support plate, the bottom surface of the trigger plate is opposite to the trigger end of the micro switch, the micro switch is arranged on the support plate, and the signal end of the micro switch is in communication connection with the signal end of the MCU; when the micro switch is triggered, the MCU obtains signal output.
Preferably, the second clutch disc is coaxial with and opposite to the first clutch disc, the first clutch disc is fixed at one end of the screw, the other end of the screw penetrates through the driving clamping block and the first partition plate and then is inserted into the lock cylinder, the screw and the lock cylinder cannot circumferentially rotate relative to each other but can axially slide relative to each other, the lock cylinder is circumferentially rotatably installed on the side wall of the second partition plate and the installation box, and the lock cylinder is tightly clamped with the second partition plate when not unlocked so as not to circumferentially rotate; the lock core, the second partition plate and the installation box are assembled in a non-axially movable manner;
the second partition plate, the first partition plate and the driving clamping block are respectively installed in the mechanical sliding groove, the mechanical sliding groove is formed in the mechanical supporting groove block, the mechanical supporting groove block is fixed to the inner wall of the installation box, the driving clamping block and the mechanical sliding groove are clamped and can move in the axial direction of the screw rod, the second partition plate and the first partition plate are respectively assembled and fixed with the mechanical supporting groove block, the screw rod and the first partition plate are assembled in a threaded screwing mode, and the screw rod and the driving clamping block can rotate circumferentially and cannot move axially.
Preferably, still install network module, motor driver in the electric box, the signal end and the MCU communication of network module are connected, and network module is used for and external equipment communication connection, and motor driver's control end and MCU's signal end communication connection, motor driver is used for driving motor.
The utility model also discloses a radio signal shield assembly, it is installed in above-mentioned hidden install bin.
The utility model has the advantages that: the utility model discloses simple structure, and unblock, motor pass through MCU control through the motor drive rack, MCU passes through network module input control instruction and can accountant the people through the authorization management system who sets up in advance with the starter motor mode to play supervision, deterrent effect. In addition, the outer part of the installation box is decorated by the decorative plate, so that the camouflage effect can be effectively played. Additionally the utility model discloses an observe door plant, indicator board and observe the mode in order to judge wireless signal shielding ware operating condition in the install bin outside alone, can reduce the install bin and open the number of times to reduce the probability that wireless signal shielding ware was destroyed or was falsified.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4 is a schematic structural diagram of the present invention.
Fig. 5 is a schematic structural diagram of the present invention.
Fig. 6 is a schematic structural diagram of the present invention.
Fig. 7 is an enlarged view at F1 in fig. 6.
Fig. 8 is a schematic view of the structure of the motor and the rack of the present invention.
Fig. 9 is a schematic view of the structure of the motor and the rack of the present invention.
Fig. 10 is a schematic view of the structure of the motor and the rack of the present invention.
Fig. 11 is a schematic structural diagram of the motor and the rack of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1 to 11, a concealed installation case includes an installation case 110, the installation case 110 covers the outside of a wireless signal shielding device 230, the wireless signal shielding device 230 is installed on a fixing plate 410, and in this embodiment, the fixing plate may be a wall or a device fixed on the wall; thereby fixing the wireless signal shield to the wall body through the fixing plate 410.
A hinge block 420 is fixed on the fixing plate 410, and the second hinge shaft 320 passes through one end of the installation box 110 and the hinge block 420 and is assembled with the hinge block 420 in a circumferential rotation manner, so that the hinge assembly of the end of the installation box 110 and the hinge block 420 is realized;
the outer end face of the installation box 110 is provided with a decorative plate 120, and the decorative plate 120 is painted with patterns or photos for decoration, so that the installation box is decorated and camouflaged. The outer wall of one end of the installation box 110, which is far away from the second joint shaft 320, is respectively fixed with two extension plates 130, an indicator plate 220, a protection plate 140 and a buckle plate 150 are installed between the two extension plates 130, the first joint shaft 310 penetrates through the protection plate 140, and both ends of the first joint shaft can be respectively assembled with the two extension plates 130 in a circumferential rotation manner, so that the protection plate 140 is hinged with the two extension plates 130;
the protection plate 140 is provided with a matching locking plate 141, the matching locking plate 141 is provided with a buckling protrusion 142, the buckling protrusion 141 is buckled with a buckling groove 151, and the buckling groove 151 is arranged on the buckling plate 150. When the protective plate 140 is used, the protective plate 140 is clamped and fixed on the clamping plate 150 relatively through the clamping assembly of the clamping protrusion 141 and the clamping groove 151. Be provided with pilot lamp 221 on the indicator panel 220, pilot lamp 221 is used for showing the operating condition of wireless signal shield ware to the operating condition of direct observation wireless signal shield ware under the prerequisite of not opening the install bin is realized. In this embodiment, an indicator light circuit and an MCU are installed in the electrical box 260, a control terminal of the indicator light circuit is in communication connection with a signal terminal of the MCU, and the indicator light circuit supplies power to the indicator light, so that the operating state of the indicator light, such as flashing, brightness, color, etc., is controlled by controlling the magnitude and frequency of the current output from the indicator light circuit to the indicator light. This is prior art, and this embodiment directly adopts current pilot lamp control circuit board to realize.
The inboard that installation box 110 kept away from second articulated shaft 320 one end is fixed with locking piece 160, and locking piece 160 is inside to be provided with locked groove 161, and locked groove 161 is provided with the one end block assembly of locking lever inclined plane 523 with locking lever 520 to the realization is to the locking of installation box, and the installation box can't use the second articulated shaft to rotate as the center and open this moment. The locking bar inclined surface 523 is used for matching with the outer wall of the locking block 160 to drive the locking bar to move upwards when the installation box is closed, and the locking bar moves downwards and is installed in the locking groove when the locking groove corresponds to the locking bar, so that automatic locking is realized.
The lock rod 520 is a rack, and is meshed with the first gear 510 after passing through the guide cylinder 450 and the support plate 440, so as to form a rack-and-pinion transmission mechanism; the guide cylinder 450 is fixed on the bottom surface of the support plate 440, a guide snap ring 522 is arranged on the part of the lock rod 520 positioned in the guide cylinder 450, a pressure spring 460 is sleeved on the part of the lock rod 520 positioned between the guide snap ring 522 and the support plate 440, and the pressure spring 460 is used for applying thrust to the lock rod 520 to move towards the lock groove; the guide snap ring 522 is engaged with the guide snap groove 451 and slidably assembled, and the guide snap groove 451 is disposed in the guide cylinder 450.
The first gear 510 is mounted on the first driving shaft 330, two ends of the first driving shaft 330 pass through the second vertical plate 472 and the third vertical plate 473 and are respectively assembled and fixed with the first power gear 531 and the second clutch disc 622, and the first driving shaft 330 is respectively assembled with the second vertical plate 472 and the third vertical plate 473 in a circumferentially rotatable and axially immovable manner;
the first power gear 531 is in meshed transmission with the second power gear 532, the second power gear 532 is mounted on the output shaft 241, one end of the output shaft 241 penetrates through the first vertical plate 471 and then is loaded in the motor 240, and the motor 240 can drive the output shaft 241 to rotate circumferentially after being electrified;
the first vertical plate 471, the second vertical plate 472, and the third vertical plate 473 are respectively fixed on the supporting plate 440, the electrical box 260 and the motor 240 are also fixed on the supporting plate 440, the supporting plate 440 is further provided with an assembling plate 430 on a side close to the fixing plate 410, and the assembling plate 430 is fixed on the fixing plate 410 by bolts;
a trigger plate 521 is fixed on the part of the lock rod 520 above the support plate 440, the bottom surface of the trigger plate 521 is opposite to the trigger end of the micro switch 250, the micro switch 250 is installed on the support plate 440, and the signal end of the micro switch is in communication connection with the signal end of the MCU; when the micro switch is triggered, the MCU obtains signal output and judges that the micro switch is in a locking state, and the lock rod is clamped and assembled with the lock groove at the moment.
The second clutch disc 622 is coaxial and opposite to the first clutch disc 621, the first clutch disc 621 is fixed at one end of the screw 340, the other end of the screw 340 penetrates through the driving fixture block 610 and the first partition 483 and then is inserted into the lock cylinder 210, the screw 340 and the lock cylinder 210 cannot rotate circumferentially but slide axially relative to each other, the lock cylinder 210 is circumferentially and rotatably mounted on the second partition 482 and the side wall of the mounting box 110, and the lock cylinder 210 is tightly clamped with the second partition 482 when not unlocked so as not to rotate circumferentially. The lock cylinder 210 is non-axially movably assembled with the second partition 482 and the mounting case 110.
The second partition 482, the first partition 483 and the driving fixture block 610 are respectively installed in a mechanical sliding groove 481, the mechanical sliding groove 481 is arranged on a mechanical supporting groove block 480, the mechanical supporting groove block 480 is fixed on the inner wall of the installation box 110, the driving fixture block 610 is clamped with the mechanical sliding groove 481 and can move in the axial direction of a screw rod, the second partition 482 and the first partition 483 are respectively assembled and fixed with the mechanical supporting groove block 480, the screw rod 340 is assembled with the first partition 483 in a screwing manner through threads, and the screw rod 340 and the driving fixture block 610 can rotate circumferentially and can not move axially.
Still install network module, motor driver in the electric box 260, the signal end and the MCU communication of network module are connected, and network module is used for with external equipment communication connection, in this embodiment, wired network card is selected for use to the network module, and it is through net twine and external server communication connection to can carry out data communication through external server and MCU. And the control end of the motor driver is in communication connection with the signal end of the MCU, and the motor driver is used for driving the motor.
When the installation box needs to be opened, an opening instruction is sent to the network module through the external server, the network module rotates the instruction to the MCU, the MCU analyzes the instruction and then transmits the instruction to the motor driver, and the motor driver controls the motor to rotate in a reverse movement angle, so that the locking rod 520 is driven by the first gear to overcome the elasticity of the pressure spring and move upwards until the locking rod is separated from the locking groove, and the installation box can be opened. At the moment, the trigger plate is separated from the microswitch, the microswitch does not output a control signal to the MCU any more, and the MCU judges that the installation box is opened.
When the installation box needs to be closed, the installation box is directly rotated to the fixing plate by taking the second cross shaft as a center until the locking rod inclined surface 523 is contacted with the outer wall of the locking block 160, then the locking rod inclined surface 523 is matched with the locking block 160 to drive the locking rod to overcome the elasticity of the pressure spring to move upwards until the locking rod is right opposite to the locking groove, the pressure spring drives the locking rod to move downwards through the self-generated elasticity to be assembled with the locking groove in a clamping manner to complete locking, the whole process is very simple, and a driving motor is not needed. And secondly, the micro switch is triggered by the trigger plate at the moment, a signal is input into the MCU, and the MCU judges that the installation box is closed.
Once the motor is damaged or without power, a key can be inserted into the lock cylinder 210, so that the clamping between the lock cylinder 210 and the second partition 482 is released, then the lock cylinder is rotated circumferentially, the lock cylinder drives the screw to rotate circumferentially synchronously, the screw 340 drives the driving block 610 to rotate towards the second clutch disc 622 through the screw thread screwed with the first partition, until the second clutch disc 622 and the first clutch disc 621 are clamped and assembled, at this time, the first gear can be driven to rotate circumferentially by continuing to rotate the lock cylinder, so that unlocking is achieved. In this embodiment, the motor adopts the motor that does not take the brake to can be under its outage state, the output shaft still can drive the rotation through external force. The utility model, through the movement of the lock core driving screw, can prevent the lock from being locked, because the lock rod is not easy to be driven to rotate by such a large angle after the lock is locked; on the other hand, due to the fact that the number of the rotation turns is large, the person who is unfamiliar can think that the lock is not available or cannot unlock the lock.
The utility model discloses its cost of design for the simple install bin of current adoption increases 5-8 times at least, but can real-time supervision install bin whether opened and the accessible server authorizes the mode control of opening and open the record and open the people to the person of accountability prevents that the radio signal shielding ware in its install bin from being tampered with or damaging, and the person is led to the responsibility moreover, has the effect of deterring.
The details of the present invention are well known to those skilled in the art.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. The utility model provides a hidden install bin, includes the install bin, and the install bin cover is outside at wireless signal shield, wireless signal shield installs on the fixed plate, characterized by:
a hinge block is fixed on the fixed plate, and a second hinge shaft penetrates through one end of the installation box and the hinge block and can be circumferentially and rotatably assembled with the hinge block; a locking block is fixed on the inner side of one end, far away from the second cross shaft, of the mounting box, a locking groove is formed in the locking block, and the locking groove is clamped and assembled with one end, provided with a locking rod inclined surface, of the locking rod;
the lock rod is a rack which penetrates through the guide cylinder and the support plate and then is meshed with the first gear; the guide cylinder is fixed on the bottom surface of the support plate, a guide clamping ring is arranged on the part of the lock rod positioned in the guide cylinder, and a pressure spring is sleeved on the part of the lock rod positioned between the guide clamping ring and the support plate; the guide clamping ring is clamped with the guide clamping groove and can be assembled in a sliding mode, and the guide clamping groove is formed in the guide cylinder; the first gear is mounted on a first drive shaft; first drive shaft passes through motor drive, and the motor is installed in the backup pad and still installs electric box in the backup pad, and the backup pad is close to still to be provided with the assembly plate on fixed plate one side, and the assembly plate passes through the bolt fastening on the fixed plate.
2. The concealed installation cabinet according to claim 1, wherein: and a decorative plate is arranged on the outer end face of the installation box, and patterns or photos for decoration are drawn on the decorative plate.
3. The concealed installation cabinet according to claim 1, wherein: the outer wall of one end of the installation box, which is far away from the second connecting shaft, is respectively fixed with two extension plates, an indicating plate, a protection plate and a buckling plate are arranged between the two extension plates, and the first hinge shaft penetrates through the protection plate, and two ends of the first hinge shaft can be respectively assembled with the two extension plates in a circumferential rotation manner;
the protection plate is provided with a matching locking plate, the matching locking plate is provided with a buckle bulge, the buckle bulge is assembled with the buckle groove in a clamping manner, and the buckle groove is formed in the buckle plate; the indicating plate is provided with an indicating lamp, and the indicating lamp is used for displaying the working state of the wireless signal shielding device;
an indicator lamp circuit and an MCU are installed in the electric box, a control end of the indicator lamp circuit is in communication connection with a signal end of the MCU, and the indicator lamp circuit supplies power to the indicator lamp.
4. The concealed installation cabinet according to claim 1, wherein: two ends of the first driving shaft penetrate through the second vertical plate and the third vertical plate and are respectively assembled and fixed with the first power gear and the second clutch disc;
the first power gear is in meshing transmission with the second power gear, the second power gear is installed on an output shaft, and one end of the output shaft penetrates through the first vertical plate and then is installed in the motor; the first vertical plate, the second vertical plate and the third vertical plate are respectively fixed on the supporting plate.
5. The concealed installation cabinet according to claim 2, wherein: a trigger plate is fixed on the part of the lock rod above the support plate, the bottom surface of the trigger plate is opposite to the trigger end of the micro switch, the micro switch is arranged on the support plate, and the signal end of the micro switch is in communication connection with the signal end of the MCU; when the micro switch is triggered, the MCU obtains signal output.
6. The concealed installation cabinet according to claim 4, wherein: the second clutch disc is coaxial and opposite to the first clutch disc, the first clutch disc is fixed at one end of the screw, the other end of the screw penetrates through the driving clamping block and the first partition plate and then is inserted into the lock cylinder, the screw and the lock cylinder cannot rotate circumferentially relative to each other but can slide axially relative to each other, the lock cylinder can be circumferentially and rotatably installed on the side wall of the second partition plate and the installation box, and the lock cylinder cannot be circumferentially and rotatably clamped with the second partition plate when not unlocked; the lock core, the second partition plate and the installation box are assembled in a non-axially movable manner;
the second partition plate, the first partition plate and the driving clamping block are respectively installed in the mechanical sliding groove, the mechanical sliding groove is formed in the mechanical supporting groove block, the mechanical supporting groove block is fixed to the inner wall of the installation box, the driving clamping block and the mechanical sliding groove are clamped and can move in the axial direction of the screw rod, the second partition plate and the first partition plate are respectively assembled and fixed with the mechanical supporting groove block, the screw rod and the first partition plate are assembled in a threaded screwing mode, and the screw rod and the driving clamping block can rotate circumferentially and cannot move axially.
7. The concealed installation cabinet according to claim 5, wherein: still install network module, motor driver in the electric box, the signal end and the MCU communication of network module are connected, and network module is used for and external equipment communication connection, and motor driver's control end and MCU's signal end communication are connected, and motor driver is used for driving motor.
8. A wireless signal shielding device is characterized in that: which is mounted in the concealed installation box according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921700639.5U CN210693952U (en) | 2019-10-12 | 2019-10-12 | Hidden type installation box and wireless signal shielding device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921700639.5U CN210693952U (en) | 2019-10-12 | 2019-10-12 | Hidden type installation box and wireless signal shielding device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210693952U true CN210693952U (en) | 2020-06-05 |
Family
ID=70897315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921700639.5U Expired - Fee Related CN210693952U (en) | 2019-10-12 | 2019-10-12 | Hidden type installation box and wireless signal shielding device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210693952U (en) |
-
2019
- 2019-10-12 CN CN201921700639.5U patent/CN210693952U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200605 Termination date: 20201012 |
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| CF01 | Termination of patent right due to non-payment of annual fee |