CN218602054U - Outdoor display board with wind direction measuring structure - Google Patents

Outdoor display board with wind direction measuring structure Download PDF

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Publication number
CN218602054U
CN218602054U CN202222834801.0U CN202222834801U CN218602054U CN 218602054 U CN218602054 U CN 218602054U CN 202222834801 U CN202222834801 U CN 202222834801U CN 218602054 U CN218602054 U CN 218602054U
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China
Prior art keywords
rod
gear
wind direction
display board
block
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CN202222834801.0U
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Chinese (zh)
Inventor
胡建林
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Hubei Hengdong Electric Power Equipment Co ltd
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Shanghai Lingyao Industrial Co ltd
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Priority to CN202222834801.0U priority Critical patent/CN218602054U/en
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Abstract

The utility model relates to a display card technical field specifically is an outdoor display card with wind direction measurement structure, the on-line screen storage device comprises a base, the top of base is provided with fixed knot constructs, the right side of fixed knot constructs is provided with a screw thread section of thick bamboo, the top of a screw thread section of thick bamboo is provided with the screw thread bull stick, the top of screw thread bull stick is equipped with the fixed plate, the top of fixed plate is provided with the display card, the outer end of display card is provided with the fixed block, the left side of display card is provided with cleans the structure, the top of display card is provided with wind direction measurement structure, the inside of base is provided with first motor. The utility model discloses fix when outdoor, with base contact ground, the second motor begins work, connects through the meshing of first gear and second gear, drives the threaded rod and rotates, second gear and threaded rod threaded connection, and the downward movement through the threaded rod drives sharp pole and injects in the ground, can effectually prevent that the display card from receiving blowing and rocking of wind.

Description

Outdoor display board with wind direction measuring structure
Technical Field
The utility model relates to a display card technical field specifically is an outdoor display card with wind direction measurement structure.
Background
The display boards are mostly placed at the doorways of various shops and used for displaying activity contents or commodity sales promotion information.
Like an outdoor billboard convenient to clearance dust of publication number CN207833797U, the utility model discloses an outdoor billboard convenient to clearance dust, including the outdoor billboard body, the last fixed surface of outdoor billboard body is connected with display device, display device's positive fixed mounting has the display screen, the observation mouth has been seted up in the front of outdoor billboard body, the inner wall fixedly connected with clear glass board of observation mouth, the equal fixedly connected with riser in both sides of outdoor billboard body, the below of outdoor billboard body is provided with the bottom plate. This outdoor billboard convenient to clearance dust drives the flabellum rotation through the pivot on the motor, concentrates some dusts in the outdoor billboard to collect to be convenient for clear up the dust, effectually solved current outdoor billboard and put in the open air for a long time, inside can produce some dusts, and these dusts can influence the normal show of advertisement, make the problem of outdoor billboard propagation effect variation.
In summary, the following technical problems are known in the prior art: can only clear up inside dust when clearing up the show tablet, can not clear up the dust on the outside show tablet together, influence the show, can not effectual fixed when placing subaerial, blow down by wind very easily to do not have a wind direction measuring device, for this reason, we provide an outdoor show tablet with wind direction measurement structure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an outdoor show tablet with wind is to measurement structure to solve the problem that provides among the above-mentioned background art.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides an outdoor display board with wind direction measurement structure, the on-line screen storage device comprises a base, the top of base is provided with fixed knot constructs, fixed knot constructs the right side and is provided with a screw thread section of thick bamboo, the top of screw thread section of thick bamboo is provided with the screw thread bull stick, the top of screw thread bull stick is equipped with the fixed plate, the top of fixed plate is provided with the display board, the outer end of display board is provided with the fixed block, the left side of display board is provided with cleans the structure, the top of display board is provided with wind direction measurement structure, the inside of base is provided with first motor.
Preferably, the fixed knot constructs including the second motor, the below of second motor is provided with first gear, and the right side of first gear is provided with the second gear, the inside of second gear is provided with the threaded rod, and the below of threaded rod is provided with the pointed rod.
Preferably, the first gear is engaged with a second gear, and the second gear is in threaded connection with a threaded rod.
Preferably, clean the structure including cleaning the storehouse, the inside of cleaning the storehouse is provided with the third motor, and the below of third motor is provided with the lead screw, the outer end of lead screw is provided with the silk braid, and the right side of silk braid is provided with first connecting block, the left side of silk braid is provided with the slide bar, the right side of first connecting block is provided with the dead lever, and the inside of dead lever is provided with drive gear, drive gear's top is provided with the chain, drive gear's right side is provided with the third gear, the right side of dead lever is provided with the second connecting block, and the right side of second connecting block is provided with the slider, the inside of slider is provided with the slide bar, the inside of show tablet is provided with the active carbon version, and the below of active carbon version is provided with the fourth motor, the below of fourth motor is provided with the flabellum, and the below of flabellum is provided with the dust screen, the outer end of dead lever is provided with and cleans the dish, and the inside of cleaning the dish is provided with the pivot.
Preferably, the driving gear is meshed with the chain and connected with the third gear through the chain, the third gear is provided with a plurality of gears, and the third gears are uniformly distributed in the fixing rod.
Preferably, the wind direction measurement structure includes the fixing base, the inside of fixing base is provided with the shifting chute, and the inside of shifting chute is provided with the gag lever post, the inside of gag lever post is provided with the spring, and the top of spring is provided with the stopper, the left side of stopper is provided with the pull rod, the rear end of stopper is provided with the spacing groove, the top of fixing base is provided with the restriction lever, and the rear end of restriction lever is provided with the restriction groove, the right side of gag lever post is provided with the wind direction pole, and the inside of wind direction pole is provided with the fixed slot, the outer end of wind direction pole is provided with the swivelling chute, and the inside of swivelling chute is provided with the rotary rod, the top of rotary rod is provided with the measuring block, and the left side of measuring block is provided with the measuring stick.
Preferably, the limiting rod is connected with the moving groove in a sliding mode, and the measuring block is connected with the rotating groove in a sliding mode through the rotating rod.
The above description shows that the technical problems to be solved by the present application can be solved by the technical solutions of the present application.
Simultaneously, through above technical scheme, the utility model discloses possess following beneficial effect at least:
the utility model discloses be provided with fixed knot and construct, fix when outdoor, with base contact ground, the second motor begins work, connects through the meshing of first gear and second gear, drives the threaded rod and rotates, second gear and threaded rod threaded connection, through the downstream of threaded rod drive sharp head pole inject ground in, can effectually prevent that the display card from receiving blowing of wind and rocking.
The utility model discloses be provided with and clean the structure, when cleaning the display card, drive gear passes through the chain and drives third gear revolve, the third gear drives the cleaning disc through the pivot and rotates, the third motor begins work, the lead screw passes through the silk braid and drives the dead lever downstream, be provided with drive gear in the dead lever, drive cleaning disc downstream through the dead lever and clean the outside of display card, clean the inside fourth motor of display card and begin work, will pass through the remaining dust of active carbon version through the rotation of flabellum and discharge through the dust screen.
The utility model discloses be provided with wind direction measurement structure, when the wind direction is measured to needs, the measuring stick is fixed on the measuring block, the measuring block passes through rotary rod and swivelling chute sliding connection, the swivelling chute is fixed on the wind direction pole, the wind direction pole injects in the fixing base, make the restriction pole inject the restriction inslot, can make the fixed slot aim at the shifting chute, inject the gag lever post through the shifting chute in the fixed slot, after reaching the rule location, the stopper receives the effect of spring and enters into the spacing inslot, can fix the wind direction pole in the fixing base.
Drawings
FIG. 1 is a schematic view of the front view structure of the present invention;
FIG. 2 is a schematic view of the front cross-sectional structure of the present invention;
FIG. 3 is a schematic view of the fixing structure of the present invention;
FIG. 4 is a schematic view of the cleaning structure of the present invention;
FIG. 5 is a schematic view of the structure of the cleaning plate of the present invention;
fig. 6 is the schematic view of the wind direction measuring structure of the present invention.
In the figure: 1. a base; 2. a fixed structure; 201. a second motor; 202. a first gear; 203. a second gear; 204. a threaded rod; 205. a sharp-headed stem; 3. a threaded barrel; 4. a threaded rotating rod; 5. a fixing plate; 6. a display board; 7. a fixed block; 8. a cleaning structure; 801. cleaning the bin; 802. a third motor; 803. a screw rod; 804. sleeving the silk; 805. a first connection block; 806. a slide bar; 807. fixing the rod; 808. a drive gear; 809. a chain; 810. a third gear; 811. a second connecting block; 812. a slider; 813. a slide bar; 814. an activated carbon plate; 815. a fourth motor; 816. a fan blade; 817. a dust screen; 818. cleaning the disc; 819. a rotating shaft; 9. a wind direction measuring structure; 901. a fixed seat; 902. a moving groove; 903. a limiting rod; 904. a spring; 905. a pull rod; 906. a limiting block; 907. a wind direction lever; 908. fixing grooves; 909. a rotating tank; 910. rotating the rod; 911. a measuring block; 912. a measuring rod; 913. a limiting groove; 914. a limiting groove; 915. a restraining bar; 10. a first motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Embodiment 1
As shown in the attached drawings 1 and 2, the utility model provides a technical scheme: the utility model provides an outdoor show tablet with wind direction measurement structure, including base 1, base 1's top is provided with fixed knot structure 2, fixed knot structure 2's right side is provided with a screw thread section of thick bamboo 3, the top of a screw thread section of thick bamboo 3 is provided with screw thread bull stick 4, the top of screw thread bull stick 4 is equipped with fixed plate 5, the top of fixed plate 5 is provided with show tablet 6, the outer end of show tablet 6 is provided with fixed block 7, the left side of show tablet 6 is provided with cleans structure 8, the top of show tablet 6 is provided with wind direction measurement structure 9, base 1's inside is provided with first motor 10.
Example two
The scheme in the first embodiment is further described in the following with reference to specific working modes, which are described in detail in the following:
as shown in fig. 3, as a preferred embodiment, in addition to the above-mentioned mode, the fixing structure 2 further includes a second motor 201, a first gear 202 is disposed below the second motor 201, a second gear 203 is disposed on the right side of the first gear 202, a threaded rod 204 is disposed inside the second gear 203, a pointed rod 205 is disposed below the threaded rod 204, the first gear 202 is engaged with the second gear 203, the second gear 203 is threadedly connected with the threaded rod 204, when the fixing structure is fixed outdoors, the base 1 is in contact with the ground, the second motor 201 starts to operate, the threaded rod 204 is driven to rotate by the engagement of the first gear 202 and the second gear 203, the second gear 203 is threadedly connected with the threaded rod 204, and the pointed rod 205 is driven to be inserted into the ground by the downward movement of the threaded rod 204, so that the display card 6 can be effectively prevented from being blown by wind and shaking.
As shown in fig. 4 and fig. 5, as a preferred embodiment, in addition to the above-mentioned manner, the cleaning structure 8 further includes a cleaning bin 801, a third motor 802 is disposed inside the cleaning bin 801, a screw rod 803 is disposed below the third motor 802, a screw sleeve 804 is disposed at an outer end of the screw rod 803, a first connecting block 805 is disposed at a right side of the screw sleeve 804, a sliding rod 806 is disposed at a left side of the screw sleeve 804, a fixing rod 807 is disposed at a right side of the first connecting block 805, a driving gear 808 is disposed inside the fixing rod 807, a chain 809 is disposed above the driving gear 808, a third gear 810 is disposed at a right side of the driving gear 808, a second connecting block 811 is disposed at a right side of the fixing rod 807, a sliding block 812 is disposed at a right side of the second connecting block 811, a sliding rod 813 is disposed inside the sliding block 812, an activated carbon plate 814 is disposed inside the display board 6, a fourth motor 815 is arranged below the activated carbon plate 814, a fan blade 816 is arranged below the fourth motor 815, a dust screen 817 is arranged below the fan blade 816, a cleaning disc 818 is arranged at the outer end of the fixing rod 807, a rotating shaft 819 is arranged inside the cleaning disc 818, a driving gear 808 is meshed with a chain 809 and connected with a third gear 810 through the chain 809, a plurality of third gears 810 are arranged, the third gears 810 are uniformly distributed in the fixing rod 807, when the display board 6 is cleaned, the driving gear 808 drives the third gear 810 to rotate through the chain 809, the third gear 810 drives the cleaning disc 818 to rotate through the rotating shaft 819, the third motor 802 starts to work, the screw rod 803 drives the fixing rod 807 to move downwards through the wire sleeve 804, the driving gear 808 is arranged inside the fixing rod 807, the cleaning disc 818 is driven to move downwards through the fixing rod 807 to clean the outside of the display board 6, the fourth motor 815 for cleaning the inside of the display board 6 is operated, and the dust remaining through the activated charcoal plate 814 is discharged through the dust screen 817 by the rotation of the fan 816.
As shown in fig. 6, as a preferred embodiment, on the basis of the above-mentioned manner, further, the wind direction measuring structure 9 includes a fixed seat 901, a moving groove 902 is provided inside the fixed seat 901, a limiting rod 903 is provided inside the moving groove 902, a spring 904 is provided inside the limiting rod 903, a limiting block 906 is provided above the spring 904, a pull rod 905 is provided on the left side of the limiting block 906, a limiting groove 913 is provided on the rear end of the limiting block 906, a limiting rod 915 is provided above the fixed seat 901, a limiting groove 914 is provided on the rear end of the limiting rod 915, a wind direction rod 907 is provided on the right side of the limiting rod 903, a fixing groove 908 is provided inside the wind direction rod 907, a rotating groove 909 is provided on the outer end of the wind direction rod 907, and a rotating rod 910 is provided inside the rotating groove 909, A measuring block 911 is arranged above the rotating rod 910, a measuring rod 912 is arranged on the left side of the measuring block 911, the limiting rod 903 is in sliding connection with the moving groove 902, the measuring block 911 is in sliding connection with the rotating groove 909 through the rotating rod 910, when the wind direction needs to be measured, the measuring rod 912 is fixed on the measuring block 911, the measuring block 911 is in sliding connection with the rotating groove 909 through the rotating rod 910, the rotating groove 909 is fixed on the wind direction rod 907, the wind direction rod 907 is inserted into the fixing seat 901, the limiting rod 915 is inserted into the limiting groove 914, the fixing groove 908 can be aligned with the moving groove 902, the limiting rod 903 is inserted into the fixing groove 908 through the moving groove 902, and after the limiting block 906 reaches the preset position, the limiting block 906 enters the limiting groove 913 under the action of the spring 904, and the wind direction rod 907 can be fixed in the fixing seat 901.
The comprehensive results show that:
the utility model is directed to the technical problem: when the display board is cleaned, only the dust in the display board can be cleaned, the dust on the outer display board cannot be cleaned together, the display is influenced, the display board cannot be effectively fixed when placed on the ground, the display board is easily blown down by wind, and no device for measuring the wind direction exists; the technical scheme of each embodiment is adopted. Meanwhile, the implementation process of the technical scheme is as follows:
firstly, the base 1 is contacted with the ground, the second motor 201 starts to work, the threaded rod 204 is driven to rotate through the meshing connection of the first gear 202 and the second gear 203, the second gear 203 is in threaded connection with the threaded rod 204, and the pointed rod 205 is driven to be inserted into the ground through the downward movement of the threaded rod 204, so that the display board 6 can be effectively prevented from being blown by wind and swinging;
then, the fixing seat 901 is fixed on the display board 6, the measuring rod 912 is fixed on the measuring block 911, the measuring block 911 is slidably connected with the rotating groove 909 through the rotating rod 910, the rotating groove 909 is fixedly connected with the wind direction rod 907, the wind direction rod 907 is inserted into the fixing seat 901, the limiting rod 915 is inserted into the limiting groove 914, the fixing groove 908 can be aligned with the moving groove 902, the limiting rod 903 is inserted into the fixing groove 908 through the moving groove 902, after the preset position is reached, the limiting block 906 enters the limiting groove 913 under the action of the spring 904, the wind direction rod 907 can be fixed in the fixing seat 901, when the wind direction rod 907 needs to be removed, the limiting block 906 is driven to move downwards through the pull rod 905 which is pressed downwards, and the limiting rod 903 can be pulled outwards to be separated from the wind direction rod 907;
then, the card to be displayed is fixed on the display card 6 through the fixing block 7, the first motor 10 starts to work, the threaded cylinder 3 drives the fixing plate 5 to move upwards through the threaded rotating rod 4, and the fixing plate 5 is fixedly connected with the display card 6;
finally, when the display board 6 needs to be cleaned, the driving gear 808 drives the third gear 810 to rotate through the chain 809, the third gear 810 drives the cleaning disc 818 to rotate through the rotating shaft 819, the third motor 802 starts to work, the screw rod 803 drives the fixing rod 807 to move downwards through the screw sleeve 804 and the first connecting block 805, the screw sleeve 804 is in sliding connection with the sliding rod 806 to limit the movement of the screw sleeve 804, the other end of the fixing rod 807 is in sliding connection with the sliding rod 813 through the second connecting block 811 and the sliding block 812, the driving gear 808 is arranged in the fixing rod 807, the cleaning disc 818 is driven to move downwards through the fixing rod 807 to clean the outside of the display board 6, the fourth motor 815 starts to work inside the display board 6, and dust remaining through the activated carbon plate 814 is discharged through the dust screen 817 through the rotation of the fan blade 816;
through the setting, above-mentioned technical problem can certainly be solved in this application, simultaneously, realize following technological effect:
the utility model discloses be provided with fixed knot and construct 2, fix when outdoor, with base 1 contact ground, second motor 201 begins work, connects through the meshing of first gear 202 and second gear 203, drives threaded rod 204 and rotates, and second gear 203 and threaded rod 204 threaded connection drive sharp-end pole 205 through the downward movement of threaded rod 204 and inject in the ground, can effectually prevent that display card 6 from receiving blowing of wind and rocking.
The utility model discloses be provided with and clean structure 8, when cleaning display board 6, drive gear 808 drives third gear 810 through chain 809 and rotates, third gear 810 drives cleaning disc 818 through pivot 819 and rotates, third motor 802 begins work, lead screw 803 passes through silk sleeve 804 and drives dead lever 807 downstream, be provided with drive gear 808 in the dead lever 807, drive cleaning disc 818 downstream through dead lever 807 and clean the outside of display board 6, clean the inside fourth motor 815 of display board 6 and begin work, the rotation through flabellum 816 will be discharged through dust screen 817 through the remaining dust of active carbon version 814.
The utility model discloses be provided with wind direction measurement structure 9, when the wind direction is measured to needs, measuring stick 912 fixes on measuring block 911, measuring block 911 passes through rotary rod 910 and swivelling chute 909 sliding connection, swivelling chute 909 is fixed on wind direction pole 907, wind direction pole 907 injects in the fixing base 901, make limiting rod 915 inject in the limiting groove 914, can make fixed slot 908 aim at shifting chute 902, inject limiting rod 903 in fixed slot 908 through shifting chute 902, after reaching the regulation position, stopper 906 receives spring 904's effect and enters into the limiting groove 913, can fix wind direction pole 907 in fixing base 901.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an outdoor display board with wind direction measurement structure, a serial communication port, including base (1), the top of base (1) is provided with fixed knot constructs (2), the right side of fixed knot constructs (2) is provided with a screw thread section of thick bamboo (3), the top of a screw thread section of thick bamboo (3) is provided with screw thread bull stick (4), the top of screw thread bull stick (4) is equipped with fixed plate (5), the top of fixed plate (5) is provided with display board (6), the outer end of display board (6) is provided with fixed block (7), the left side of display board (6) is provided with cleans structure (8), the top of display board (6) is provided with wind direction measurement structure (9), the inside of base (1) is provided with first motor (10).
2. An outdoor display board with wind direction measuring structure according to claim 1, characterized in that the fixed structure (2) comprises a second motor (201), a first gear (202) is arranged below the second motor (201), a second gear (203) is arranged at the right side of the first gear (202), a threaded rod (204) is arranged inside the second gear (203), and a pointed rod (205) is arranged below the threaded rod (204).
3. An outdoor display board with wind direction measuring structure according to claim 2, characterized in that the first gear (202) is engaged with the second gear (203), and the second gear (203) is screwed with the threaded rod (204).
4. The outdoor display board with the wind direction measuring structure is characterized in that the cleaning structure (8) comprises a cleaning bin (801), a third motor (802) is arranged inside the cleaning bin (801), a lead screw (803) is arranged below the third motor (802), a wire sleeve (804) is arranged at the outer end of the lead screw (803), a first connecting block (805) is arranged on the right side of the wire sleeve (804), a sliding rod (806) is arranged on the left side of the wire sleeve (804), a fixing rod (807) is arranged on the right side of the first connecting block (805), a driving gear (808) is arranged inside the fixing rod (807), a chain (809) is arranged above the driving gear (808), a third gear (810) is arranged on the right side of the driving gear (808), a second connecting block (811) is arranged on the right side of the fixing rod (807), a sliding block (812) is arranged on the right side of the second connecting block (811), a sliding rod (813) is arranged inside the sliding block (812), an activated carbon plate (814) is arranged inside the display board (6), a fourth motor (815) is arranged below the activated carbon plate (814), and a fan blade (816) is arranged below the fan blade (816), the outer end of the fixed rod (807) is provided with a cleaning disc (818), and a rotating shaft (819) is arranged inside the cleaning disc (818).
5. An outdoor display board with wind direction measuring structure according to claim 4, characterized in that the driving gear (808) is engaged with the chain (809), the driving gear (808) is engaged with the third gear (810) through the chain (809), the third gear (810) is provided with several, and the third gears (810) are evenly distributed in the fixing rod (807).
6. The outdoor display board with the wind direction measuring structure is characterized in that the wind direction measuring structure (9) comprises a fixed base (901), a moving groove (902) is formed in the fixed base (901), a limiting rod (903) is arranged in the moving groove (902), a spring (904) is arranged in the limiting rod (903), a limiting block (906) is arranged above the spring (904), a pull rod (905) is arranged on the left side of the limiting block (906), a limiting groove (913) is formed in the rear end of the limiting block (906), a limiting rod (903) is arranged above the fixed base (901), a limiting groove (914) is formed in the rear end of the limiting rod (915), a wind direction rod (907) is arranged on the right side of the limiting rod (906), a fixing groove (908) is formed in the wind direction rod (907), a rotating groove (909) is formed in the wind direction rod (907), a rotating groove (910) is formed in the rotating groove (909), a measuring block (911) is arranged on the upper side of the rotating rod (910), and a measuring block (911) is arranged on the left side of the measuring block (911).
7. An outdoor display board with wind direction measuring structure according to claim 6, characterized in that the limiting rod (903) is connected with the moving slot (902) in a sliding way, and the measuring block (911) is connected with the rotating slot (909) in a sliding way through the rotating rod (910).
CN202222834801.0U 2022-10-27 2022-10-27 Outdoor display board with wind direction measuring structure Active CN218602054U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222834801.0U CN218602054U (en) 2022-10-27 2022-10-27 Outdoor display board with wind direction measuring structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222834801.0U CN218602054U (en) 2022-10-27 2022-10-27 Outdoor display board with wind direction measuring structure

Publications (1)

Publication Number Publication Date
CN218602054U true CN218602054U (en) 2023-03-10

Family

ID=85405036

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222834801.0U Active CN218602054U (en) 2022-10-27 2022-10-27 Outdoor display board with wind direction measuring structure

Country Status (1)

Country Link
CN (1) CN218602054U (en)

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20240604

Address after: 432100 Xinpu Town Industrial Park, Xiaonan District, Xiaogan City, Hubei Province

Patentee after: HUBEI HENGDONG ELECTRIC POWER EQUIPMENT Co.,Ltd.

Country or region after: China

Address before: 501, No. 176, Lane 888, Laiting South Road, Jiuting Town, Songjiang District, Shanghai, 2016

Patentee before: Shanghai Lingyao Industrial Co.,Ltd.

Country or region before: China