CN216033393U

CN216033393U - Rotatable horizontal and vertical projection white board

Info

Publication number: CN216033393U
Application number: CN202121849097.5U
Authority: CN
Inventors: 赵文发
Original assignee: Dongguan Aoxing Audio Visual Equipment Co ltd
Current assignee: Dongguan Aoxing Audio Visual Equipment Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-03-15
Anticipated expiration: 2031-08-09

Abstract

The utility model relates to the technical field of projection whiteboards, in particular to a rotatable horizontal and vertical projection whiteboard, which comprises a projection board with a writing function, and is characterized in that: the projection board can adjust its anyhow direction through the installation component, be provided with on the projection board and erase the device, it includes the length direction horizontal slip's at the projection board eraser subassembly to erase the device, the eraser subassembly includes the guide holder that sets up along projection board width direction, detachably installs a plurality of erasing blocks side by side on the guide holder, every erasing block and the writing surface frictional contact of projection board, the erasing surface of erasing block is fast dry cloth, adjacent two erasing surfaces laminate each other, each erasing block and the writing surface frictional contact of projection board, the total length of erasing the surface is the same with the writing surface width of projection board, the area that the assembly single slip of erasing of blackboard was erased improves greatly, the effect is more than original 2 times, can save strength when erasing, the efficiency of erasing promotes greatly.

Description

Rotatable horizontal and vertical projection white board

Technical Field

The utility model relates to the technical field of projection whiteboards, in particular to a rotatable horizontal and vertical projection whiteboard.

Background

Due to the evolution of projection technology, small projectors have been widely used in home theaters and conference places, and especially when the projectors are used in the conference places, the projectors are usually used in cooperation with presentation to play presentation data. In the course of presentation, a speaker needs to write characters or drawing auxiliary instructions on the spot in order to explain the contents of the presentation in detail, and a writable projection whiteboard has been developed.

The existing writing white board needs to be erased by using an eraser in the erasing process after writing, the area of the eraser which is erased once in the using process is small, the erasing effect is general, and the erasing efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rotatable horizontal and vertical projection whiteboard aiming at the defects of the prior art.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the utility model provides a rotatable horizontal and vertical projection blank, is including the projection board that has writing function, and the projection board can adjust its horizontal and vertical direction through the installation component, is provided with on the projection board and erases the device, and it includes the length direction horizontal slip blackboard eraser subassembly at the projection board to erase the device, and the blackboard eraser subassembly includes the guide holder that sets up along projection board width direction, and detachably installs a plurality of erasing blocks side by side on the guide holder, every erasing block and the writing surface frictional contact of projection board.

Further: the guide holder both ends are provided with the sliding structure with projection board sliding fit, and sliding structure still includes the shaping in projection board both sides wall and with sliding block sliding fit's spout including the shaping in guide holder both ends, this spout along the length direction setting of projection board.

Further: the guide holder shaping has the mounting groove that is used for the location installation to erase the piece, and mounting groove one end is provided with the stopper, erases the piece and follows the mounting groove gomphosis on the guide holder.

Further: the quantity of erasing the piece is 5, and the face of erasing the piece is fast dry cloth, and two adjacent faces of erasing are laminated each other, and the total length of 5 faces of erasing is the same with the writing surface width of projection board.

Further: the last shaping of guide holder has the regulation hole that link up to the mounting groove, is provided with the regulation pole of installation erasing piece on the regulation hole, can change the interval between erasing piece and the projection board through rotating the regulation pole.

Further: the guide seat is further provided with a push-pull seat in a sliding mode, two second sliding grooves for the push-pull seat to horizontally slide are formed in the front end wall of the guide seat, and the two second sliding grooves are located on the upper side and the lower side of the adjusting hole respectively.

Further: the mounting assembly comprises a mounting plate arranged at the back of the projection plate and a chuck matched with the mounting plate, the outer end of the chuck is provided with a lifting supporting assembly, and the chuck and the mounting plate are coaxially formed to have two locking holes arranged on the same straight line.

The utility model has the beneficial effects that: according to the rotatable horizontal and vertical projection whiteboard, the guide seat is detachably provided with the plurality of erasing blocks side by side, each erasing block is in friction contact with the writing surface of the projection board, the total length of the erasing surface is the same as the width of the writing surface of the projection board, the erasing area of the eraser assembly erased by single sliding is greatly increased and is more than 2 times of the original erasing area, each erasing block is installed by adopting the slidable guide seat, labor can be saved during erasing, and the erasing efficiency is greatly improved.

Drawings

Fig. 1 is a schematic structural view of a mounting assembly connected with a projection plate.

FIG. 2 is a schematic structural diagram of the connection between the erasing assembly and the projection plate.

FIG. 3 is an enlarged view of the structure A in FIG. 1, including an erase structure.

The reference numerals include:

1-projection plate 10-mounting component 11-mounting plate 12-chuck 13-locking hole 14-locking rod

15-support assembly

2-erasing device 21-guide seat 22-sliding block 23-sliding groove 24-erasing block 25-mounting groove

26-adjusting hole 27-adjusting rod 28-sliding groove 29-push-pull seat.

Detailed Description

The present invention is described in detail below with reference to the attached drawings.

As shown in fig. 1-3, a rotatable horizontal and vertical projection whiteboard comprises a projection board 1 with a writing function, the projection board 1 can adjust the horizontal and vertical directions thereof through a mounting assembly 10, the mounting assembly 10 comprises a mounting plate 11 arranged at the back of the projection board 1, a circular groove is formed on the mounting plate 11, the whiteboard further comprises a chuck 12 rotatably matched with the circular groove of the mounting plate 11, one end of the chuck 12 is embedded into the circular groove for rotatably matching, a lifting support assembly 15 is arranged at the outer end of the chuck 12, the support assembly 15 is a telescopic support rod and a support seat arranged at the bottom of the support rod; the circular grooves of the chuck 12 and the mounting plate 11 are coaxially formed to have a plurality of locking holes 13, wherein the locking holes 13 on the chuck 12 are two, the included angle between two locking holes 13 on the chuck 12 is 180 degrees, the locking holes 13 on the mounting plate 11 are four, the included angle between two adjacent locking holes 13 on the mounting plate 11 is 90 degrees, the locking holes 13 are threaded holes, and the locking rods 14 are arranged on the locking holes 13 in a threaded manner.

The specific operation mode of the rotation of the projection plate 1 is as follows: when the locking bar 14 is loosened, the projection plate 1 is rotated by 90 degrees, and then the locking bar 14 is tightly locked and matched with the other two locking holes 13 to fix the projection plate 1; in order to improve and erase the effect, be provided with on the projection board 1 and erase device 2, it includes the board eraser subassembly at the length direction horizontal slip of projection board 1 to erase device 2, the board eraser subassembly includes guide holder 21 along the setting of 1 width direction of projection board, detachably installs 5 erasing block 24 side by side on the guide holder 21, erasing block 24's the face of erasing is fast dry cloth, two adjacent erasing faces are laminated each other, each erasing block 24 and projection board 1's the writing surface frictional contact, 5 total length of erasing the face are the same with projection board 1's writing surface width, the area that board eraser subassembly single slip was erased improves greatly, 5 original times, and every erasing block 24 adopts slidable guide holder 21 to install, can save strength when erasing, the efficiency of erasing promotes greatly.

In order to further improve the erasing effect, the guide seat 21 is formed with a mounting groove 25 for positioning and mounting the erasing block 24, one end of the mounting groove 25 is provided with a limit block marked in the figure, the guide seat 21 is formed with an adjusting hole 26 penetrating through the mounting groove 25, the adjusting hole 26 is provided with an adjusting rod 27 for mounting the erasing block 24, the limit block is positioned at the bottom of the mounting groove 25, when the erasing block 14 is embedded along the mounting groove and the bottom of the erasing block 14 is pushed against the limit block, the adjusting hole 26 on the erasing block 14 is just coaxially aligned with the adjusting hole 26 on the guide seat 21, the insertion of the adjusting rod 27 is facilitated, and the limit block can also prevent the erasing block 24 from falling off and falling from the mounting groove 25 to the guide seat 21; the distance between the erasing block 24 and the projection plate 1 can be changed by rotating the adjusting rod 27, some water writing pens are difficult to erase after writing on the projection plate 1, in order to improve the friction force between the erasing surface of the erasing block 24 and the projection plate 1, the adjusting rod 27 can be rotated and twisted, so that the erasing surface of the erasing block 24 is further contacted with the projection plate 1, when the water writing pens are erased in a sliding mode, the erasing effect is improved, and the plate characters which are difficult to erase are removed quickly.

In order to further improve the smoothness of erasing, the two ends of the guide seat 21 are provided with sliding structures in sliding fit with the projection plate 1, each sliding structure comprises sliding blocks 22 formed at the two ends of the guide seat 21, each sliding groove 23 is formed on two side walls of the projection plate 1 and in sliding fit with the corresponding sliding block 22, each sliding groove 23 is arranged along the length direction of the projection plate 1, the guide seat 21 slides along the corresponding sliding groove 23, a push-pull seat 29 is further slidably mounted on the guide seat 21, two second sliding grooves for enabling the push-pull seat 29 to horizontally slide are formed in the front end wall of the guide seat 21, each second sliding groove is a sliding groove 28, the two sliding grooves 28 are respectively located on the upper side and the lower side of the adjusting hole 26, the guide seat 21 can be driven to slide along the corresponding sliding groove 23 by pushing the push-pull seat 29, the erasing block 24 can erase the handwriting on the projection plate 1 completely, and time and labor can be saved.

In conclusion, the present invention has the above-mentioned excellent characteristics, so that it can be used to enhance the performance of the prior art and has practicability, and becomes a product with practical value.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. The utility model provides a rotatable horizontal vertical projection blank, is including the projection board that has the writing function, its characterized in that: the projection board can adjust its horizontal and vertical direction through the installation component, is provided with on the projection board and erases the device, erases the device and includes the board eraser subassembly at the length direction horizontal slip of projection board, and the board eraser subassembly includes the guide holder that sets up along projection board width direction, and detachably installs a plurality of erasing blocks side by side on the guide holder, and every erasing block and the writing surface frictional contact of projection board.

2. The rotatable landscape and portrait projection whiteboard of claim 1, wherein: the guide holder both ends are provided with the sliding structure with projection board sliding fit, and sliding structure still includes the shaping in projection board both sides wall and with sliding block sliding fit's spout including the sliding block of shaping at the guide holder both ends, this spout sets up along the length direction of projection board.

3. The rotatable landscape and portrait projection whiteboard of claim 1, wherein: the guide holder shaping has the mounting groove that is used for the location installation to erase the piece, and mounting groove one end is provided with the stopper, erases the piece and follows the mounting groove gomphosis on the guide holder.

4. The rotatable landscape and portrait projection whiteboard of claim 1, wherein: the quantity of erasing the piece is 5, and the face of erasing the piece is fast dry cloth, and two adjacent faces of erasing are laminated each other, and the total length of 5 faces of erasing is the same with the writing surface width of projection board.

5. A rotatable landscape and portrait projection whiteboard according to claim 3, wherein: the guide holder is provided with an adjusting hole penetrating through the guide holder to the mounting groove, an adjusting rod for mounting the erasing block is arranged on the adjusting hole, and the distance between the erasing block and the projection plate can be changed by rotating the adjusting rod.

6. The rotatable landscape and portrait projection whiteboard of claim 5, wherein: still slidable mounting has the push-and-pull seat on the guide holder, and the guide holder front end wall shaping has two confession push-and-pull seat horizontal slip's second spout, and two second spouts are located the upper and lower both sides of regulation hole respectively.

7. The rotatable landscape and portrait projection whiteboard of claim 1, wherein: the mounting assembly comprises a mounting plate arranged at the back of the projection plate and a chuck matched with the mounting plate, the outer end of the chuck is provided with a lifting supporting assembly, and the chuck and the mounting plate are coaxially formed to have two locking holes arranged on the same straight line.