CN211203516U - Height-adjustable bracket for projector and projector - Google Patents
Height-adjustable bracket for projector and projector Download PDFInfo
- Publication number
- CN211203516U CN211203516U CN201922459917.9U CN201922459917U CN211203516U CN 211203516 U CN211203516 U CN 211203516U CN 201922459917 U CN201922459917 U CN 201922459917U CN 211203516 U CN211203516 U CN 211203516U
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- Prior art keywords
- rotatory
- saddle
- adjusting screw
- projecting apparatus
- screw
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Abstract
The utility model discloses a but height-adjusting bracket for projecting apparatus, including fixed frame, bottom plate, rotation axis, regulating plate, locating plate and mounting panel, its characterized in that: fixed frame bottom be provided with fixed barrel, the bottom plate on be provided with connecting stud perpendicularly, the rotation axis bottom insert in the bearing of fixed frame bottom, the regulating plate place in fixed frame, the locating plate be connected with the stand top, the mounting panel back on be provided with the connecting plate, be provided with the spread groove on the connecting plate. The utility model discloses set up the spread groove on the connecting plate of mounting panel into the arc structure, set up the spread groove into the arc structure, the mounting panel drives the connecting plate and reciprocates, and connecting plate relative positioning double-screw bolt removes, can play limiting displacement to the positioning double-screw bolt through the spacing groove, makes the mounting panel angle of adjustment on the locating plate to realize the angle of adjustment projecting apparatus, enlarged the application scope of projecting apparatus, improve the projection effect.
Description
Technical Field
The utility model relates to a projecting apparatus technical field specifically is an adjustable height bracket and projecting apparatus for projecting apparatus.
Background
Present projecting apparatus is mostly fixed on the mounting bracket, and only can adjust the angle of horizontal direction, it reaches better projection effect to all be the position of adjustment projection screen usually, in case the projection screen removes, just must readjust, increase the difficulty degree of use, can not carry out corresponding regulation according to the difference of different classroom curtain heights, lead to influencing the unable accurate projection on the curtain easily, very big influence teacher and student's watching, not only develop very big inconvenience for teacher's course, the enthusiasm of student's study has also been influenced.
Disclosure of Invention
The utility model aims at providing a but, the adjustable height bracket and the projecting apparatus that are used for the projecting apparatus that structural design is reasonable, the projecting apparatus can height-adjusting, projecting apparatus stability is good in the course of the work to current projecting apparatus do not have height-adjusting, projecting apparatus not good problem of stability in the course of the work.
The utility model provides a technical scheme that technical problem taken does:
the utility model provides a but, height-adjusting bracket for projecting apparatus, includes chassis, rotatory barrel, rotatory screw rod, motor, saddle, adjusting screw and regulating plate, its characterized in that: the projector comprises a base frame, a first bearing is arranged on the base frame, the base frame is connected with the first bearing in a welding mode, the connection strength between the base frame and the first bearing is enhanced, the structural strength of a bracket is further enhanced, a first bearing vertically penetrates through a rotary screw cylinder, threads are arranged in the rotary screw cylinder, the rotary screw cylinder rotates in the first bearing under the action of a motor, the threads in the rotary screw cylinder push external threads on a rotary screw rod to rotate, the rotary screw rod is made to ascend or descend in the rotary screw cylinder to drive a supporting platform to ascend or descend, and therefore the purpose of adjusting the height of a projector is achieved, the rotary screw rod vertically penetrates through the rotary screw cylinder and is provided with external threads, the motor is arranged at the top in the base frame and is provided with a driving wheel, the motor is installed on the base frame through bolts, the stability of the motor after installation is improved, and the stability of the motor in the working process is further, the support table is connected with the top end of the rotary screw rod, an inner cavity is arranged in the support table, a limiting groove communicated with the inner cavity is formed in the top of the support table, two bearings are arranged on two opposite sides of the support table, the support table is connected with the rotary screw rod in a welding mode, the connecting strength between the support table and the rotary screw rod is enhanced, the stability of the rotary screw rod in the process of driving the support table to ascend or descend is improved, a limiting effect on a regulating plate moving back and forth can be achieved through the limiting groove, the regulating screw rod is transversely arranged in the inner cavity, two ends of the regulating screw rod penetrate out of the two bearings, external threads are arranged on the regulating screw rod in the inner cavity, a connecting screw cylinder is arranged on the regulating plate, the regulating screw rod transversely penetrates through the connecting screw cylinder, the top end of the regulating plate penetrates out of the limiting groove, a fastening plate is arranged on the regulating plate, and, the external screw thread on the adjusting screw promotes the connection screw section of thick bamboo on the regulating plate, make the connection screw section of thick bamboo along adjusting screw round trip movement, drive the mounting plate round trip movement on the regulating plate, enlarge or reduce the distance between two mounting plates, carry out the centre gripping to the projecting apparatus of placing on the saddle, improve the stability of projecting apparatus in the course of the work, through the distance between adjustment mounting plate and the mounting plate, can carry out the centre gripping to the projecting apparatus of variation in size and fix, the commonality of bracket has been improved, the application scope of bracket has been enlarged, the cost of making many sets of brackets has been reduced.
Preferably, the chassis on be provided with the spacing ring, the saddle bottom be provided with the gag lever post perpendicularly to with the vertical spacing intra-annular that passes of gag lever post, the motor drives rotatory barrel at a bearing internal rotation, rotatory screw promotes rotatory screw rod and rises or descends in rotatory barrel, rotatory screw rod top promotes the saddle and rises or descends, the gag lever post on the saddle rises or descends in the spacing ring, can play limiting displacement to the saddle of rising or descending in-process through the gag lever post, avoid the saddle to take place to rock at the height adjustment in-process, improve the saddle and place the stability on the saddle, and then improve the stability of projecting apparatus in the course of the work.
Preferably, the motor set up to servo motor to be connected the action wheel through the belt with rotatory spiral shell section of thick bamboo, the motor drives action wheel forward or the reverse rotation, the action wheel drives rotatory spiral shell section of thick bamboo forward or the reverse rotation in bearing one through the belt, rotatory screw promotes rotatory screw rod and rises or descends in rotatory spiral shell section of thick bamboo, rotatory screw rod top promotes the saddle and rises or descends, and then can adjust the height of projecting apparatus on the saddle according to actual need, satisfy the use needs of projecting apparatus in different places, the commonality of bracket has been improved, the application scope of bracket has been enlarged.
Preferably, adjusting screw both ends be provided with the handle, be convenient for the staff through the handle and rotate adjusting screw, the external screw thread on the adjusting screw promotes the connection spiral shell section of thick bamboo on the regulating plate, makes the connection spiral shell section of thick bamboo along adjusting screw round trip movement, drives the mounting plate round trip movement on the regulating plate, makes the mounting plate carry out the centre gripping from the relative both sides of projecting apparatus to the projecting apparatus fixed, improves the stability of projecting apparatus in the course of the work.
Preferably, adjusting screw on the external screw thread set up to two sections structures, and set up two sections external screw threads to reverse setting on adjusting screw, the staff of being convenient for through the handle rotates adjusting screw, the last external screw thread of adjusting screw promotes the connection barrel on the regulating plate, make the connection barrel along adjusting screw round trip movement, drive the mounting plate round trip movement on the regulating plate, enlarge or reduce the distance between two mounting plates, carry out the centre gripping to the projecting apparatus of placing on the saddle, improve the stability of projecting apparatus in the course of the work, through the distance between adjustment mounting plate and the mounting plate, can carry out the centre gripping to the projecting apparatus of variation in size and fix, the commonality of bracket has been improved, the application scope of bracket has been enlarged, the cost of making many sets of brackets has been reduced.
A projector comprises a shell and at least one adjustable height bracket, wherein the shell is connected with a supporting platform on each adjustable height bracket through a bolt.
Has the advantages that: the utility model discloses passing through the go-between with the regulating plate and setting up to the structure that can rotate the axle relatively and rise or descend, operating personnel rotates the rotation axis, it is rotatory to rotate the internal thread that the rotatory in-process of epaxial external screw thread drives the link, make the go-between rise or descend along the rotation axis, it rises or descends to drive the regulating plate, make the regulating plate promote the stand and wear out from the fixed orifices from top to bottom, it rises or descends to drive the projecting apparatus, be convenient for adjust the height of projecting apparatus according to actual need, the application scope of projecting apparatus.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a part of the structure of the present invention, illustrating the connection structure of the rotary screw cylinder and the motor.
Fig. 3 is a schematic view of a part of the structure of the present invention, illustrating the connection structure of the supporting platform and the limiting groove.
Fig. 4 is a schematic view of a part of the structure of the present invention, illustrating the connection structure of the adjusting plate and the fastening plate.
Fig. 5 is a schematic diagram of another embodiment of the present invention.
In the figure: 1. the anti-skid device comprises a base frame, 2 rotary screw cylinders, 3 rotary screws, 4 motors, 5 supporting platforms, 6 adjusting screws, 7 adjusting plates, 8 bearings I, 9 limiting rings, 10 external threads, 11 driving wheels, 12 belts, 13 inner cavities, 14 limiting grooves, 15 bearings II, 16 limiting rods, 17 handles, 18 connecting screw cylinders, 19 fastening plates and 20 anti-skid pads.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1-4, an adjustable height bracket for a projector comprises a base frame 1, a rotary screw cylinder 2, a rotary screw 3, a motor 4, a support table 5, an adjusting screw 6 and an adjusting plate 7, and is characterized in that: the projector comprises an underframe 1, a bearing I8 is arranged on the underframe 1, the underframe 1 is connected with the bearing I8 through welding, the connection strength between the underframe 1 and the bearing I8 is enhanced, the structural strength of a bracket is further enhanced, a rotary screw cylinder 2 vertically penetrates through the bearing I8, threads are arranged in the rotary screw cylinder 2, the rotary screw cylinder 2 rotates in the bearing I8 under the action of a motor 4, the threads in the rotary screw cylinder 2 push external threads 10 on a rotary screw rod 3 to rotate, so that the rotary screw rod 3 ascends or descends in the rotary screw cylinder 2 to drive a supporting platform 5 to ascend or descend, the purpose of adjusting the height of the projector is achieved, the rotary screw rod 3 vertically penetrates through the rotary screw cylinder 2 and is provided with the external threads 10, the motor 4 is arranged at the top in the underframe 1, a driving wheel 11 is arranged on the motor 4, and the motor 4 is installed on the underframe 1 through bolts, the stability of the motor 4 after installation is improved, the stability of the motor 4 in the working process is further enhanced, the support table 5 is connected with the top end of the rotary screw rod 3, an inner cavity 13 is arranged in the support table 5, a limiting groove 14 communicated with the inner cavity 13 is formed in the top of the support table 5, two bearings 15 are arranged on two opposite sides of the support table 5, the support table 5 is connected with the rotary screw rod 3 through welding, the connecting strength between the support table 5 and the rotary screw rod 3 is enhanced, the stability of the rotary screw rod 3 in the process of driving the support table 5 to ascend or descend is improved, the regulating plate 7 moving back and forth can be limited through the limiting groove 14, the regulating screw rod 6 is transversely arranged in the inner cavity 13, two ends of the regulating screw rod 6 penetrate out of the two bearings 15, an external thread 10 is arranged on the regulating screw rod 6 in the inner cavity 13, a connecting screw cylinder 18 is arranged on the regulating plate 7, pass connecting screw barrel 18 with adjusting screw 6 crosswise, wear out regulating plate 7 top from spacing groove 14, and be provided with mounting plate 19 on regulating plate 7, it rotates adjusting screw 6 to be convenient for the staff through handle 17, external screw thread 10 on adjusting screw 6 promotes connecting screw barrel 18 on regulating plate 7, make connecting screw barrel 18 along adjusting screw 6 round trip movement, drive mounting plate 19 round trip movement on regulating plate 7, enlarge or reduce the distance between two mounting plates 19, carry out the centre gripping to the projecting apparatus of placing on saddle 5, improve the stability of projecting apparatus in the course of the work, through the distance between adjustment mounting plate 19 and the mounting plate 19, can carry out the centre gripping to the projecting apparatus of variation in size fixedly, the commonality of bracket has been improved, the application scope of bracket has been enlarged, the cost of making many sets of brackets has been reduced.
Preferably, the underframe 1 on be provided with the spacing ring 9, 5 bottoms of saddle be provided with gag lever post 16 perpendicularly, and pass in the gag lever post 16 is vertical in the spacing ring 9, motor 4 drives rotatory barrel 2 at bearing 8 internal rotation, rotatory barrel 2 promotes rotatory screw rod 3 and rises or descends in rotatory barrel 2, rotatory screw rod 3 top promotes saddle 5 and rises or descends, gag lever post 16 on saddle 5 rises or descends in the gag lever post 9, can play limiting displacement to saddle 5 in the rising or descending process through spacing ring 9, gag lever post 16, avoid saddle 5 to take place to rock in the height-adjusting in-process, improve saddle 5 and place the stability on saddle 5, and then improve the stability of projecting apparatus in the course of the work.
Preferably, motor 4 set up to servo motor 4 to be connected action wheel 11 through belt 12 with rotatory barrel 2, motor 4 drives action wheel 11 forward or reverse rotation, action wheel 11 drives rotatory barrel 2 forward or reverse rotation in bearing 8 through belt 12, rotatory barrel 2 promotes rotatory screw rod 3 and rises or descends in rotatory barrel 2, 3 tops of rotatory screw rod promote saddle 5 and rise or descend, and then can adjust the height of projecting apparatus on saddle 5 according to actual need, satisfy the user demand of projecting apparatus in different places, the commonality of bracket has been improved, the application scope of bracket has been enlarged.
Preferably, adjusting screw 6 both ends be provided with handle 17, be convenient for the staff through handle 17 and rotate adjusting screw 6, external screw thread 10 on adjusting screw 6 promotes the connection spiral shell section of thick bamboo 18 on the regulating plate 7, makes the connection spiral shell section of thick bamboo 18 along adjusting screw 6 round trip movement, drives the mounting plate 19 round trip movement on the regulating plate 7, makes mounting plate 19 can follow the relative both sides of projecting apparatus and carry out the centre gripping to the projecting apparatus fixed, improves the stability of projecting apparatus in the course of the work.
Preferably, external screw thread 10 on adjusting screw 6 set up to two sections structures, and set up two sections external screw threads 10 to reverse setting on adjusting screw 6, be convenient for the staff through handle 17 to rotate adjusting screw 6, external screw thread 10 on adjusting screw 6 promotes the connection barrel 18 on the regulating plate 7, make connection barrel 18 along adjusting screw 6 round trip movement, drive mounting plate 19 round trip movement on regulating plate 7, enlarge or reduce the distance between two mounting plates 19, carry out the centre gripping to the projecting apparatus of placing on saddle 5, improve the stability of projecting apparatus in the course of the work, through the distance between adjustment mounting plate 19 and mounting plate 19, can carry out the centre gripping to the projecting apparatus of variation in size fixed, the commonality of bracket has been improved, the application scope of bracket has been enlarged, the cost of making many sets of brackets has been reduced.
A projector comprises a shell and at least one adjustable height bracket, wherein the shell is connected with a support table 5 on each adjustable height bracket through a bolt.
Example two:
as shown in fig. 5, an adjustable height bracket for a projector comprises a base frame 1, a rotary screw cylinder 2, a rotary screw rod 3, a motor 4, a support table 5, an adjusting screw rod 6 and an adjusting plate 7, and is characterized in that: the projector comprises an underframe 1, a bearing I8 is arranged on the underframe 1, the underframe 1 is connected with the bearing I8 through welding, the connection strength between the underframe 1 and the bearing I8 is enhanced, the structural strength of a bracket is further enhanced, a rotary screw cylinder 2 vertically penetrates through the bearing I8, threads are arranged in the rotary screw cylinder 2, the rotary screw cylinder 2 rotates in the bearing I8 under the action of a motor 4, the threads in the rotary screw cylinder 2 push external threads 10 on a rotary screw rod 3 to rotate, so that the rotary screw rod 3 ascends or descends in the rotary screw cylinder 2 to drive a supporting platform 5 to ascend or descend, the purpose of adjusting the height of the projector is achieved, the rotary screw rod 3 vertically penetrates through the rotary screw cylinder 2 and is provided with the external threads 10, the motor 4 is arranged at the top in the underframe 1, a driving wheel 11 is arranged on the motor 4, and the motor 4 is installed on the underframe 1 through bolts, the stability of the motor 4 after installation is improved, the stability of the motor 4 in the working process is further enhanced, the support table 5 is connected with the top end of the rotary screw rod 3, an inner cavity 13 is arranged in the support table 5, a limiting groove 14 communicated with the inner cavity 13 is formed in the top of the support table 5, two bearings 15 are arranged on two opposite sides of the support table 5, the support table 5 is connected with the rotary screw rod 3 through welding, the connecting strength between the support table 5 and the rotary screw rod 3 is enhanced, the stability of the rotary screw rod 3 in the process of driving the support table 5 to ascend or descend is improved, the regulating plate 7 moving back and forth can be limited through the limiting groove 14, the regulating screw rod 6 is transversely arranged in the inner cavity 13, two ends of the regulating screw rod 6 penetrate out of the two bearings 15, an external thread 10 is arranged on the regulating screw rod 6 in the inner cavity 13, a connecting screw cylinder 18 is arranged on the regulating plate 7, pass connecting screw barrel 18 with adjusting screw 6 crosswise, wear out regulating plate 7 top from spacing groove 14, and be provided with mounting plate 19 on regulating plate 7, it rotates adjusting screw 6 to be convenient for the staff through handle 17, external screw thread 10 on adjusting screw 6 promotes connecting screw barrel 18 on regulating plate 7, make connecting screw barrel 18 along adjusting screw 6 round trip movement, drive mounting plate 19 round trip movement on regulating plate 7, enlarge or reduce the distance between two mounting plates 19, carry out the centre gripping to the projecting apparatus of placing on saddle 5, improve the stability of projecting apparatus in the course of the work, through the distance between adjustment mounting plate 19 and the mounting plate 19, can carry out the centre gripping to the projecting apparatus of variation in size fixedly, the commonality of bracket has been improved, the application scope of bracket has been enlarged, the cost of making many sets of brackets has been reduced.
Preferably, the underframe 1 on be provided with the spacing ring 9, 5 bottoms of saddle be provided with gag lever post 16 perpendicularly, and pass in the gag lever post 16 is vertical in the spacing ring 9, motor 4 drives rotatory barrel 2 at bearing 8 internal rotation, rotatory barrel 2 promotes rotatory screw rod 3 and rises or descends in rotatory barrel 2, rotatory screw rod 3 top promotes saddle 5 and rises or descends, gag lever post 16 on saddle 5 rises or descends in the gag lever post 9, can play limiting displacement to saddle 5 in the rising or descending process through spacing ring 9, gag lever post 16, avoid saddle 5 to take place to rock in the height-adjusting in-process, improve saddle 5 and place the stability on saddle 5, and then improve the stability of projecting apparatus in the course of the work.
Preferably, motor 4 set up to servo motor 4 to be connected action wheel 11 through belt 12 with rotatory barrel 2, motor 4 drives action wheel 11 forward or reverse rotation, action wheel 11 drives rotatory barrel 2 forward or reverse rotation in bearing 8 through belt 12, rotatory barrel 2 promotes rotatory screw rod 3 and rises or descends in rotatory barrel 2, 3 tops of rotatory screw rod promote saddle 5 and rise or descend, and then can adjust the height of projecting apparatus on saddle 5 according to actual need, satisfy the user demand of projecting apparatus in different places, the commonality of bracket has been improved, the application scope of bracket has been enlarged.
Preferably, adjusting screw 6 both ends be provided with handle 17, be convenient for the staff through handle 17 and rotate adjusting screw 6, external screw thread 10 on adjusting screw 6 promotes the connection spiral shell section of thick bamboo 18 on the regulating plate 7, makes the connection spiral shell section of thick bamboo 18 along adjusting screw 6 round trip movement, drives the mounting plate 19 round trip movement on the regulating plate 7, makes mounting plate 19 can follow the relative both sides of projecting apparatus and carry out the centre gripping to the projecting apparatus fixed, improves the stability of projecting apparatus in the course of the work.
Preferably, external screw thread 10 on adjusting screw 6 set up to two sections structures, and set up two sections external screw threads 10 to reverse setting on adjusting screw 6, be convenient for the staff through handle 17 to rotate adjusting screw 6, external screw thread 10 on adjusting screw 6 promotes the connection barrel 18 on the regulating plate 7, make connection barrel 18 along adjusting screw 6 round trip movement, drive mounting plate 19 round trip movement on regulating plate 7, enlarge or reduce the distance between two mounting plates 19, carry out the centre gripping to the projecting apparatus of placing on saddle 5, improve the stability of projecting apparatus in the course of the work, through the distance between adjustment mounting plate 19 and mounting plate 19, can carry out the centre gripping to the projecting apparatus of variation in size fixed, the commonality of bracket has been improved, the application scope of bracket has been enlarged, the cost of making many sets of brackets has been reduced.
Preferably, the anti-slip pad 20 is laid on the surface of the pallet 5, and the stability of the projector on the pallet 5 can be improved through the anti-slip pad 20, so that the stability of the projector in the working process is further improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
A projector comprises a shell and at least one adjustable height bracket, wherein the shell is connected with a support table 5 on each adjustable height bracket through a bolt.
In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.
Claims (6)
1. The utility model provides a but, height-adjusting bracket for projecting apparatus, includes chassis, rotatory barrel, rotatory screw rod, motor, saddle, adjusting screw and regulating plate, its characterized in that: the chassis on be provided with bearing one, rotatory barrel vertically pass bearing one, rotatory screw rod vertically penetrate rotatory barrel to be provided with the external screw thread on rotatory screw rod, the motor setting top in the chassis to be provided with the action wheel on the motor, the saddle be connected with rotatory screw rod top, be provided with the inner chamber in the saddle, set up the spacing groove with the inner chamber intercommunication at the saddle top to be provided with bearing two on the relative both sides of saddle, adjusting screw transversely set up in the inner chamber, wear out adjusting screw both ends from bearing two to be provided with the external screw thread on adjusting screw in the inner chamber, the regulating plate on be provided with and connect the barrel, with adjusting screw transversely pass connection barrel, wear out the regulating plate top from the spacing groove to be provided with the mounting plate on the regulating plate.
2. The adjustable height bracket for a projector according to claim 1, wherein: the base frame is provided with a limiting ring, the bottom of the supporting platform is vertically provided with a limiting rod, and the limiting rod vertically penetrates through the limiting ring.
3. The adjustable height bracket for a projector according to claim 1, wherein: the motor is set as a servo motor and connects the driving wheel with the rotary screw cylinder through a belt.
4. The adjustable height bracket for a projector according to claim 1, wherein: handles are arranged at two ends of the adjusting screw rod.
5. The adjustable height bracket for a projector according to claim 1, wherein: the external thread on the adjusting screw is of a two-section structure, and the two sections of external threads are arranged on the adjusting screw in a reverse direction.
6. A projector comprising a housing and at least one adjustable height bracket according to any one of claims 1 to 5, the housing being bolted to the mount on each of the adjustable height brackets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922459917.9U CN211203516U (en) | 2019-12-30 | 2019-12-30 | Height-adjustable bracket for projector and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922459917.9U CN211203516U (en) | 2019-12-30 | 2019-12-30 | Height-adjustable bracket for projector and projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211203516U true CN211203516U (en) | 2020-08-07 |
Family
ID=71888550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922459917.9U Expired - Fee Related CN211203516U (en) | 2019-12-30 | 2019-12-30 | Height-adjustable bracket for projector and projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211203516U (en) |
-
2019
- 2019-12-30 CN CN201922459917.9U patent/CN211203516U/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: 20200807 Termination date: 20201230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |