CN211530643U - Electric power energy transmission device convenient to installation - Google Patents

Electric power energy transmission device convenient to installation Download PDF

Info

Publication number
CN211530643U
CN211530643U CN202020373348.6U CN202020373348U CN211530643U CN 211530643 U CN211530643 U CN 211530643U CN 202020373348 U CN202020373348 U CN 202020373348U CN 211530643 U CN211530643 U CN 211530643U
Authority
CN
China
Prior art keywords
wall
block
column
movable
snap ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202020373348.6U
Other languages
Chinese (zh)
Inventor
张勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202020373348.6U priority Critical patent/CN211530643U/en
Application granted granted Critical
Publication of CN211530643U publication Critical patent/CN211530643U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model discloses an electric power energy conveyor convenient to installation, the on-line screen storage device comprises a base, be provided with high angle adjustment mechanism on the base, be provided with the roof on the high angle adjustment mechanism, it is provided with semicircle buckle one to fix through branch on the direction slider, semicircle buckle one top left side articulates there is matched with semicircle buckle two. The utility model discloses a there is high angle adjustment mechanism, collect altitude mixture control and angle modulation as an organic whole, when carrying out altitude mixture control, drive the actuating lever through the drive carousel, cooperation through initiative bevel gear and driven bevel gear drives the lead screw and rotates, screw-thread fit drive movable post through lead screw and threaded sleeve upwards or downwards, and then the movable post drives the pulling post upwards or accomplish altitude mixture control downwards, be convenient for find good supported position, upwards through the pulling post, make block and a block section of thick bamboo separation, and then rotatable pulling post, and then adjustment service angle.

Description

Electric power energy transmission device convenient to installation
Technical Field
The utility model belongs to the technical field of the electric power energy is carried, concretely relates to electric power energy conveyor convenient to installation.
Background
Electric power transmission refers to a process of transmitting electric energy from one place to another place by a power plant or a power source, and the most common electric power transmission equipment is a transmission line which is an important member for realizing electric power transmission and overall allocation. However, the existing electric power transmission equipment is fixed when a line is erected, and although the existing electric power transmission equipment can support the transmission line when in use, the adjustability is poor, the transmission line is inconvenient to install, and the use has certain limitations.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electric power energy conveyor convenient to installation to solve the problem of the inconvenient transfer chain installation of prior art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electric power energy conveyor convenient to installation, includes the base, be provided with high angle adjustment mechanism on the base, be provided with the roof on the high angle adjustment mechanism, evenly be provided with the direction slider above the roof, and transversely be provided with the direction slide rail that matches with the direction slider on the roof, it has semicircle buckle one to fix through branch on the direction slider, the left side articulates in semicircle buckle one has matched with semicircle buckle two, the relative one end of semicircle buckle one and semicircle buckle two all extends to the right side and is formed with rectangle end block, rectangle end block on semicircle buckle one and the semicircle buckle two passes through bolt and nut fastening connection, the lateral symmetry is provided with the locking piece that the structure is the same around the direction slider top, and the locking blind hole that matches with the locking piece is evenly seted up to the side outer wall around the direction slide rail.
Further, the height and angle adjusting mechanism comprises a sleeve column fixed on the top of the base, a movable column is movably inserted on the top of the sleeve column, a threaded sleeve is fixedly inserted on the bottom of the movable column, a matched screw rod is screwed in the thread of the threaded sleeve, the top end of the screw rod extends to the position of the inner cavity of the movable column near the middle part, the bottom end of the screw rod is movably connected with the inner wall of the bottom of the sleeve column through a bearing, a driving bevel gear is sleeved on the bottom of the outer wall of the front side of the sleeve column, a driving rod is inserted on the bottom of the outer wall of the front side of the sleeve column, a driven bevel gear meshed with the driving bevel gear is arranged at the rear end of the driving rod, a driving turntable is welded at the front end of the driving rod, a pulling column is movably inserted on the top of the movable column, operating rods are, the pulling column bottom is fixedly provided with a cylindrical clamping block, the inner cavity of the movable column is welded with a clamping cylinder matched with the clamping block, the clamping cylinder is located above the screw rod, the inner wall of the clamping cylinder is annularly arrayed and welded with a first vertical tooth, and the outer wall of the clamping block is annularly arrayed and welded with a second vertical tooth meshed with the first vertical tooth.
Further, the locking piece includes the extension piece that is L shape with direction slider top fixed connection, the activity is pegged graft on the extension piece and is had the locking lever that matches with the locking blind hole, the one end welding that the direction slide rail was kept away from to the locking lever has the pulling block, the fixed cover of locking lever outer wall is equipped with the fixed block, locking lever outer wall activity cover is equipped with the spring, and the spring is located between fixed block and the extension piece.
Further, the slider has all been welded to the outer wall of the left and right sides of activity post and movable block, and the equal vertical spout that matches with the slider that is provided with of cover post and activity post inner wall, movable block top front and back end all is provided with reset spring, and reset spring top and activity top of the column wall connection.
Furthermore, the outer wall of the driving rod is movably sleeved with a fixed disc, the fixed disc is welded with the outer wall of the front side of the sleeve column, the outer wall of the driving turntable is connected with a screw in an inserting mode, and the outer wall of the front side of the fixed disc is provided with screw holes matched with the screws in an annular array mode.
Furthermore, the inner walls of the opposite sides of the first semicircular buckle and the second semicircular buckle are respectively provided with an elastic layer.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides an electric power energy transmission device convenient to install, which integrates height adjustment and angle adjustment, has high stability after height adjustment and high self-locking performance, can not reverse, and is convenient to find a good supporting position; the stable fixation after the angle adjustment is realized, and the use stability is ensured; the conveying line can be conveniently and quickly supported and installed, the installation and the disassembly are quick and convenient, meanwhile, the conveying line can be prevented from being damaged, and the service life is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the height and angle adjusting mechanism of the present invention;
fig. 3 is a left side view of the structure of the locking member of the present invention.
In the figure: 1. a base; 2. a height angle adjustment mechanism; 21. sleeving a column; 22. a movable post; 23. a lead screw; 24. driving the turntable; 241. fixing the disc; 25. pulling the column; 26. a movable block; 27. a return spring; 28. a clamping block; 29. a clamping cylinder; 3. a top plate; 4. an operating lever; 5. a guide slider; 6. a guide slide rail; 7. a first semicircular retaining ring; 8. a semicircular retaining ring II; 9. an elastic layer; 10. a locking member; 101. an extension block; 102. a lock lever; 103. pulling the block; 104. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: referring to fig. 1, an electric power energy transmission device convenient to mount includes a base 1, the base 1 has a mounting hole, and can be mounted at a designated position through an external fixing component such as a screw, a screw or a bolt, and these mounting structures are widely used in the field, and can be flexibly selected by a person skilled in the art, and are not described in detail herein;
referring to fig. 1, a height and angle adjusting mechanism 2 is disposed on a base 1, and the height and angle adjusting mechanism 2 is used for adjusting a supporting height and a using angle;
referring to fig. 1, a top plate 3 is arranged on the height and angle adjusting mechanism 2 (i.e. the top of a pulling column 25 in the height and angle adjusting mechanism 2 is connected with the bottom of the top plate 3), and the top plate 3 is used for arranging a structure for mounting and supporting a conveying line;
referring to fig. 1 and 3, the top plate 3 is uniformly provided with guide sliders 5, the top plate 3 is transversely provided with guide slide rails 6 matched with the guide sliders 5, the number of the guide sliders 5 is at least three, as can be seen from fig. 3, the guide slide rails 6 are U-shaped, and the tops of the inner walls of the left side and the right side of the guide slide rails 6 are respectively provided with a flange extending inwards for limiting the guide sliders 5 to move up and down, but the guide sliders 5 are not influenced to move left and right and are detached from the guide sliders 5, so that a user can add or reduce the guide sliders 5 and the structures arranged on the guide sliders 5 as required;
referring to fig. 1, a first semicircular buckle 7 is fixedly arranged on a guide slider 5 through a support rod, a second semicircular buckle 8 which is matched with the first semicircular buckle 7 is hinged to the left side of the first semicircular buckle 7, opposite ends of the first semicircular buckle 7 and the second semicircular buckle 8 extend towards the right side to form a rectangular end block, the rectangular end blocks on the first semicircular buckle 7 and the second semicircular buckle 8 are fixedly connected through bolts and nuts, the conveying line can be quickly supported conveniently by matching the first semicircular buckle 7 and the second semicircular buckle 8, the fixing mode of the bolts and the nuts is widely applied in the field, the structure and the installation mode of the fixing device are well known by persons skilled in the field, and detailed description is omitted;
referring to fig. 1, locking members 10 having the same structure are symmetrically disposed on the front and rear sides of the top of the guide slider 5, the locking members 10 are used for adjusting the position of the guide slider 5 to achieve stable fixation, and locking blind holes matched with the locking members 10 are uniformly formed in the outer walls of the front and rear sides of the guide slide rail 6.
As shown in fig. 2: the height and angle adjusting mechanism 2 comprises a sleeve column 21 fixed on the top of the base 1, the sleeve column 21 can be fixed on the top of the base 1 by welding, a movable column 22 is movably inserted on the top of the sleeve column 21, a movable hole matched with the movable column 22 is arranged on the top of the sleeve column 21, a threaded sleeve is fixedly inserted on the bottom of the movable column 22, the threaded sleeve can be connected with the movable column 22 by welding, a matched screw 23 is screwed in the thread of the threaded sleeve, the screw 23 is in threaded fit with the threaded sleeve to realize the up-and-down movement of the movable column 22, the top end of the screw 23 extends to the position close to the middle part of the inner cavity of the movable column 22, the bottom end of the screw 23 is movably connected with the inner wall of the bottom of the sleeve column 21 through a bearing to facilitate the rotation of the screw 23, a driving bevel gear is sleeved on the bottom of the outer wall, the front end of the driving rod is welded with a driving turntable 24, a user drives the driving rod through the manual driving turntable 24, and further drives the screw rod 23 to rotate through the matching of the driving bevel gear and the driven bevel gear, and further drives the movable column 22 to lift through the matching of the screw rod 23 and the threaded sleeve, the sleeve column 21 and the movable column 22 in the utility model are both hollow and can be in a circular or rectangular structure, the selection is carried out according to the actual situation, the top of the movable column 22 is movably inserted with a pulling column 25, the top of the movable column 22 is provided with a movable hole matched with the pulling column 25, the tops of the left and right outer walls of the pulling column 25 are both welded with an operating rod 4, as can be seen from the attached figure 1, the operating rod 4 is convenient for the user to pull the pulling column 25 upwards, the outer wall of the pulling column 25 is sleeved with a movable block 26 through a bearing, the use angle is convenient, the bottom of the pulling column 25 is fixedly provided with a cylindrical clamping block 28, the inner cavity of the movable column 22 is welded with a clamping cylinder 29 matched with the clamping block 28, the clamping cylinder 29 is positioned above the screw 23, the inner wall of the clamping cylinder 29 is welded with a first vertical tooth in an annular array manner, the outer wall of the clamping block 28 is welded with a second vertical tooth in an annular array manner, the second vertical tooth is meshed with the first vertical tooth, the clamping block 28 and the clamping cylinder 29 are fixed through mutual meshing of the first vertical tooth and the second vertical tooth, when in meshing, the pulling column 25 cannot be rotated, so when angle adjustment is carried out, the pulling column 25 needs to be pulled upwards, and the clamping block 28 is separated from the clamping cylinder 29;
as shown in fig. 3: the locking piece 10 comprises an L-shaped extension block 101 fixedly connected with the top of the guide sliding block 5, the extension block 101 is fixed on the top of the guide sliding block 5 in a welding mode, a locking rod 102 matched with the locking blind hole is movably inserted in the extension block 101, the locking rod 102 is inserted into the locking blind hole to further fix the guide sliding block 5, so that the guide sliding block 5 cannot slide in the guide sliding rail 6, a pulling block 103 is welded at one end, away from the guide sliding rail 6, of the locking rod 102, a user can pull the locking rod 102 outwards conveniently, a fixing block is fixedly sleeved on the outer wall of the locking rod 102, a spring 104 is movably sleeved on the outer wall of the locking rod 102, the spring 104 is positioned between the fixing block and the extension block 101, one end of the spring 104 is fixed with the fixing block, the other end of the spring is fixed with the extension block 101, the;
as shown in fig. 2: the sliders are welded on the outer walls of the left side and the right side of the movable column 22 and the movable block 26, the inner walls of the sleeve column 21 and the movable column 22 are vertically provided with sliding grooves matched with the sliders, the front end and the rear end of the top of the movable block 26 are respectively provided with a return spring 27, the top of the return spring 27 is connected with the inner wall of the top of the movable column 22, the sliding blocks on the movable column 22 are matched with the sliding grooves on the inner wall of the sleeve column 21, on one hand, the movable column 22 is prevented from being driven to rotate by a lead screw 23, stable up-and-down motion is ensured, meanwhile, the movable column 22 cannot be separated from the lead screw 23 upwards, and cannot be contacted with a driving bevel gear or a driven bevel gear downwards, on the other hand, the sliding blocks on the movable block 26 are matched with the sliding grooves on the inner wall of the movable column 22, on the other hand, a user can conveniently pull, further, the movable block 26 presses the return spring 27, when the pulling column 25 is released, the return spring 27 drives the pulling column 25 to move downwards, and the clamping block 28 is tightly clamped with the clamping cylinder 29;
as shown in fig. 2: the outer wall of the driving rod, which is spliced with the outer wall of the front side of the sleeve column 21, is movably sleeved with the fixed disc 241, the movable sleeve is used for preventing the fixed disc 241 from influencing the rotation of the driving rod, the fixed disc 241 is welded with the outer wall of the front side of the sleeve column 21, the fixed disc 241 can give fixing force to the driving rod when the driving rod is not used by adopting a welding mode, the rotation is avoided, the outer wall of the driving turntable 24 is spliced with screws, the annular array of the outer wall of the front side of the fixed disc 241 is provided with screw holes matched with the screws, when the adjustment is not needed, the screws are screwed into the screw holes to fix the driving turntable 24, the rotation caused by external factors is further avoided, and;
as shown in fig. 1: the inner walls of the opposite sides of the first semicircular buckle 7 and the second semicircular buckle 8 are respectively provided with an elastic layer 9, and the elastic layers 9 can be made of rubber materials or sponge materials.
The working principle is as follows: when the device is used, the device is fixed at a designated position, when the height of the device to be used needs to be adjusted, the screw is screwed off, the driving turntable 24 is manually rotated, the driving bevel gear is driven to rotate by the driving rod, the lead screw 23 is driven to rotate by the matching of the driving bevel gear and the driven bevel gear, the movable column 22 is lifted by the matching of the lead screw 23 and the threaded sleeve, after the adjustment is completed, the movable column is inserted into the corresponding screw hole for fixing by inserting the screw, when the angle adjustment needs to be performed, the pulling column 25 is pulled upwards, the clamping block 28 is separated from the clamping cylinder 29, the pulling column 25 is further restored to the movable state, a user can manually rotate the pulling column 25 for angle adjustment, after the adjustment is completed, the pulling column 25 is loosened, the reset spring 27 drives the movable block 26 to reset downwards, the clamping block 28 is further led into the clamping cylinder 29 for fixing the pulling column 25, and the locking piece 10 can, pull piece 103 through manual pulling and drive locking lever 102 and move to the outside, and then make direction slider 5 can slide in direction slide rail 6, the adjustment fixed position, adjust the back, loosen and pull piece 103, spring 104 drives locking lever 102 and resets and realize fixing in getting into the locking blind hole that corresponds, make direction slider 5 fixed, remove screw bolt and nut through twisting, open semicircle buckle one 7 and semicircle buckle two 8, place the transfer chain in semicircle buckle one 7 and semicircle buckle two 8, it fixes through screw bolt and nut to buckle semicircle buckle one 7 and semicircle buckle two 8 again and can make the transfer chain fix in semicircle buckle one 7 and semicircle buckle two 8.
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 (6)

1. An electric power energy transmission device convenient to installation, includes base (1), its characterized in that: the height and angle adjusting mechanism (2) is arranged on the base (1), a top plate (3) is arranged on the height and angle adjusting mechanism (2), a guide sliding block (5) is uniformly arranged on the top plate (3), a guide sliding rail (6) matched with the guide sliding block (5) is transversely arranged on the top plate (3), a semicircular snap ring I (7) is fixedly arranged on the guide sliding block (5) through a supporting rod, a semicircular snap ring II (8) matched with the semicircular snap ring I (7) is hinged to the left side of the semicircular snap ring I (7), one opposite end of the semicircular snap ring I (7) and one opposite end of the semicircular snap ring II (8) extend towards the right side to form a rectangular end block, the rectangular end blocks on the semicircular snap ring I (7) and the semicircular snap ring II (8) are fixedly connected through bolts and nuts, and locking pieces (10) with the same structure are symmetrically arranged on the, and the outer walls of the front side and the rear side of the guide slide rail (6) are uniformly provided with locking blind holes matched with the locking piece (10).
2. An installation friendly electrical energy transmission device as claimed in claim 1, wherein: the height and angle adjusting mechanism (2) comprises a sleeve column (21) fixed at the top of the base (1), a movable column (22) is movably inserted at the top of the sleeve column (21), a threaded sleeve is fixedly inserted at the bottom of the movable column (22), a matched lead screw (23) is screwed in the threaded sleeve, the top end of the lead screw (23) extends to the position, close to the middle, of the inner cavity of the movable column (22), the bottom end of the lead screw (23) is movably connected with the inner wall at the bottom of the sleeve column (21) through a bearing, a driving bevel gear is sleeved at the bottom of the outer wall of the lead screw (23), a driving rod is inserted at the bottom of the outer wall at the front side of the sleeve column (21), a driven bevel gear meshed with the driving bevel gear is arranged at the rear end of the driving rod, a driving turntable (24) is welded at the front end of the driving rod, a pulling column (25) is movably inserted at the top of the movable column, pulling post (25) outer wall is equipped with movable block (26) through the bearing housing, and movable block (26) slide to set up in activity post (22), pulling post (25) bottom is fixed to be provided with and is columniform block (28), and the welding of activity post (22) inner chamber has a block section of thick bamboo (29) with block (28) complex, a block section of thick bamboo (29) is located lead screw (23) top, the annular array welding of block section of thick bamboo (29) inner wall has vertical tooth one, and the annular array welding of block (28) outer wall has vertical tooth two with the meshing of vertical tooth one.
3. An installation friendly electrical energy transmission device as claimed in claim 1, wherein: locking piece (10) include with direction slider (5) top fixed connection be the extension piece (101) of L shape, the activity is pegged graft on extension piece (101) and is had locking lever (102) that matches with the locking blind hole, the one end welding that direction slide rail (6) were kept away from in locking lever (102) has pulling piece (103), the fixed cover of locking lever (102) outer wall is equipped with the fixed block, locking lever (102) outer wall activity cover is equipped with spring (104), and spring (104) are located between fixed block and extension piece (101).
4. An installation friendly electrical energy transmission device as claimed in claim 2, wherein: the utility model discloses a movable column (22) is characterized in that the slider has all been welded to side outer wall about movable column (22) and movable block (26), and the equal vertical spout that matches with the slider that is provided with of cover post (21) and movable column (22) inner wall, movable block (26) top front and back end all is provided with reset spring (27), and reset spring (27) top and movable column (22) top inner wall connection.
5. An installation friendly electrical energy transmission device as claimed in claim 2, wherein: the outer wall of the driving rod is movably sleeved with a fixed disc (241), the fixed disc (241) is welded with the outer wall of the front side of the sleeve column (21), the outer wall of the driving turntable (24) is connected with a screw in an inserting mode, and the outer wall of the front side of the fixed disc (241) is provided with screw holes matched with the screws in an annular array mode.
6. An installation friendly electrical energy transmission device as claimed in claim 1, wherein: and elastic layers (9) are arranged on the inner walls of the opposite sides of the first semicircular snap ring (7) and the second semicircular snap ring (8).
CN202020373348.6U 2020-03-23 2020-03-23 Electric power energy transmission device convenient to installation Expired - Fee Related CN211530643U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020373348.6U CN211530643U (en) 2020-03-23 2020-03-23 Electric power energy transmission device convenient to installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020373348.6U CN211530643U (en) 2020-03-23 2020-03-23 Electric power energy transmission device convenient to installation

Publications (1)

Publication Number Publication Date
CN211530643U true CN211530643U (en) 2020-09-18

Family

ID=72441099

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020373348.6U Expired - Fee Related CN211530643U (en) 2020-03-23 2020-03-23 Electric power energy transmission device convenient to installation

Country Status (1)

Country Link
CN (1) CN211530643U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112563985A (en) * 2020-12-22 2021-03-26 李英 Efficient cable installation adjusting frame for electric power engineering construction
CN113719305A (en) * 2021-09-11 2021-11-30 青岛康太源建设集团有限公司 A high strength adjustable supporting construction for construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112563985A (en) * 2020-12-22 2021-03-26 李英 Efficient cable installation adjusting frame for electric power engineering construction
CN113719305A (en) * 2021-09-11 2021-11-30 青岛康太源建设集团有限公司 A high strength adjustable supporting construction for construction

Similar Documents

Publication Publication Date Title
CN211530643U (en) Electric power energy transmission device convenient to installation
CN109578911A (en) A kind of new type solar energy street lamp
CN219611684U (en) Photovoltaic panel support for quickly installing photovoltaic panel
CN210041719U (en) Photovoltaic power generation installing support
CN113824081B (en) Outdoor cable distribution box
CN216672932U (en) Adjustable photovoltaic board installing support
CN115395865A (en) Solar photovoltaic power generation device and power generation method
CN113864671A (en) LED lamp fixing lamp holder convenient to mount
CN112072994A (en) Photovoltaic power generation device for renewable energy source convenient to adjust installation angle
CN220119201U (en) Double-glass solar integrated street lamp
CN220567113U (en) Solar energy street lamp photovoltaic board convenient to change
CN219809871U (en) LED street lamp driving power supply connection structure
CN219068103U (en) Solar panel installation furniture guide rail combined mechanism
CN219893225U (en) Auxiliary adjusting structure for photovoltaic panel installation
CN217899707U (en) Emergency lighting assembly based on wisdom building
CN218763207U (en) Energy-saving telescopic solar new forms of energy street lamp
CN220890962U (en) Tensioning ware convenient to adjust rate of tension
CN220711406U (en) Photovoltaic cell installing support with adjustable angle
CN220043288U (en) Photovoltaic bracket with flexibly adjustable dip angle
CN213125908U (en) Solar module mounting rack
CN217467766U (en) Intelligent voice alarm device for electrical equipment
CN113131842B (en) Photovoltaic power generation device and use method
CN215071279U (en) High tension switchgear convenient to installation
CN218720066U (en) Display screen convenient to install for shelter
CN212746375U (en) Switching device capable of adjusting installation angle of lamp

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: 20200918

CF01 Termination of patent right due to non-payment of annual fee