Hanging rack for installing plurality of display screens and writing boards

Abstract

The utility model relates to a hanging rack for installing a plurality of display screens and writing boards, and belongs to the technical field of teaching appliance wall hanging installation supports. The edge covering protection positioning strip is additionally arranged below the main cross beam, the main body of the edge covering protection positioning strip is the L-shaped edge strip of the semi-surrounding structure, the display screen and the writing board can be protected to a certain degree, meanwhile, the vertical positioning edge strip of the L-shaped edge strip serves as a positioning reference in the front-back direction when the display screen and the writing board are installed, and therefore the display screen and the writing board are convenient to install. The front side surface of the display screen is flush with the front side surface of the writing board, the first vertical board is matched with the vertical positioning edge strip to form a writing board front-back direction positioning structure, the first vertical board is matched with the vertical positioning edge strip to form the writing board front-back direction positioning structure, and the reliability of the display screen and the writing board in the front-back direction positioning structure is ensured. Due to the fact that the L-shaped edge strip is of a semi-surrounding structure, the L-shaped edge strip has better universality and is suitable for display screens and writing boards with different thicknesses.

Description

Technical Field

[0001] This utility model relates to a wall mount for installing multiple displays and writing boards, belonging to the technical field of wall-mounted mounting brackets for teaching aids. Background Technology

[0002] Currently, with the continuous development of technology, teaching aids are also constantly being innovated. Most schools now use electronic displays to supplement whiteboards (blackboards or whiteboards) for teaching students. The conventional arrangement is to place one electronic display on each side of the whiteboard. Traditionally, multiple displays (such as televisions) are installed with a separate bracket for each device. The displays are generally back-mounted, while the whiteboard is fixed at the four corners. The installation method is inconsistent. Specifically, the first set of devices is usually installed first, then the second set is installed according to the height of the first set. After installation, the fixing holes are adjusted to align with the first set. If the error is large, the bracket is removed and re-drilled. Similarly, the third set is aligned with the second set. If the entire setup is tilted, the entire setup is redone. Taking a television as an example, installing a single television normally takes 20 minutes. Installing two televisions and leveling them to eliminate vertical errors usually takes 1 hour. If a blackboard is added, aligning all three screens takes 1.5 to 1.8 hours, with much of the time wasted on leveling. Because of the use of hollow bricks in the wall, the monitors may settle due to their own weight after installation. Furthermore, calculation and measurement errors can lead to alignment difficulties, making successful multi-screen installations almost impossible to guarantee on the first try. Installation requires calculating the height of each monitor from the ground, as well as the width distance between multiple devices, and reserving space for the blackboard. If the reserved space is insufficient, the monitor's mounting bracket needs to be moved. Due to wall reliability issues, calculation errors, and settlement, physical alignment of the devices is difficult, resulting in vertical errors after installation and inconsistent front surface positions (the thickness of a TV differs significantly from that of a blackboard; for example, a TV is typically around 9cm thick, while a blackboard is typically 2cm to 3cm thick, leading to inconsistent distances from the wall and making surface alignment difficult). Therefore, installation often requires multiple adjustments and re-drilling to align the monitor and blackboard, which is time-consuming and labor-intensive. The inconsistent sizes and specifications of mounting brackets for different brands and types of devices also prevent installers from developing installation experience to improve efficiency.

[0003] Furthermore, students often bump into the equipment during breaks, causing it to loosen or wobble. To avoid safety hazards and address installation errors, schools typically add a protective frame to shield the equipment and conceal these errors. This process is complex, involving on-site cutting of the metal frame with an angle grinder and assembly according to the monitor and blackboard dimensions. This is inefficient and expensive, with the protective frame costing several times more than the monitor and blackboard brackets themselves. Other issues arise as well. If problems occur during use, maintenance of the wiring requires professional removal and reinstallation of the frame, which is extremely inconvenient. The edging for the monitor and blackboard is custom-made, requiring on-site cutting and installation. Prices and installers vary by region, resulting in inconsistent quality and hindering project quality and timeline management.

[0004] A search revealed that the Chinese utility model patent document with publication number CN214376993U is most similar to the technical solution of this application. This utility model discloses a smart blackboard, including a display screen, two writing boards, two crossbeams, and a main frame. The two writing boards are respectively disposed on both sides of the display screen; the main frame is used to suspend the display screen; the two crossbeams are respectively disposed on both sides of the main frame and used to suspend the two writing boards; a leveling bubble level is installed on the main frame and each of the crossbeams. This utility model uses a main frame to suspend the display screen, and a first crossbeam and a second crossbeam to suspend the first and second writing boards respectively. A leveling bubble level is used to level the main frame, the first crossbeam, and the second crossbeam, and the display screen is installed on the main frame. Using a leveling bubble level replaces the traditional measuring tape, reducing the number of measurements and measurement errors, eliminating the need for multiple installation workers, and reducing labor costs and the difficulty of wall mounting. This utility model is for a scenario where a display screen is arranged in the middle and writing boards are arranged on both sides. Although it can also be used for a scenario where a writing board is arranged in the middle and a display screen is arranged on both sides, all three main devices are suspended and do not take into account the thickness difference between the display screen and the writing board. That is, it does not consider how to achieve alignment of the three main devices in the front-to-back direction (with the front surfaces relatively aligned), nor does it consider how to protect the edges of the main devices. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a bracket for mounting multiple displays and writing boards, which can facilitate the alignment of multiple displays and writing boards in the front-to-back direction, while providing better protection for the displays and writing boards.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a bracket for mounting multiple displays and a writing board, including a writing board fixing assembly and a main beam for fixing to a wall. The left side of the main beam is provided with a first suspension latch for suspending a first display screen, and the right side is provided with a second suspension latch for suspending a second display screen. The first and second suspension latches are respectively equipped with suspension brackets, which have a display screen fixing connection structure. The writing board fixing assembly includes a bottom fixing member and a top fixing member for the writing board. The mounting bracket includes a first horizontal plate and a first vertical plate fixedly connected together. The bracket also includes an edge-protecting positioning strip for fixing to the wall and located below the main beam. The edge-protecting positioning strip includes an L-shaped edge strip extending laterally in the left-right direction. The L-shaped edge strip is composed of a horizontal positioning edge strip and a vertical positioning edge strip located on the front side of the upper surface of the horizontal positioning edge strip. Several first wall connectors are provided on the rear side of the horizontal positioning edge strip. The first wall connectors are connected to the horizontal positioning edge strip by first connecting bolts. At least one of the first wall connectors and the horizontal positioning edge strip is provided with a mounting bracket for the first connecting bolts. The first strip-shaped hole is connected to the L-shaped edge strip, which is set along the front-to-back direction. The L-shaped edge strip includes a first display screen positioning area at the left end, a writing board positioning area in the middle, and a second display screen positioning area at the right end. An adjusting bolt is connected to the lower part of the suspension bracket. The axis of the adjusting bolt is set along the front-to-back direction, and one end of the adjusting bolt is used to abut against the wall. The adjusting bolt, together with the vertical positioning edge strip, forms a front-to-back positioning structure for the display screen. The bottom fixing component of the writing board is fixed to the upper surface of the horizontal positioning edge strip in the writing board positioning area by a first horizontal plate and a second connecting bolt. At least one of the horizontal plate and the horizontal positioning strip is provided with a second strip hole through which the second connecting bolt passes. The length direction of the second strip hole is set along the front-back direction. The first vertical plate and the vertical positioning strip together form the front-back positioning structure of the writing board. The rear end of the top fixing member of the writing board is provided with a second wall connector. The second wall connector is connected to the top fixing member of the writing board by a third connecting bolt. At least one of the second wall connector and the top fixing member of the writing board is provided with a third strip hole through which the third connecting bolt passes. The length direction of the third strip hole is set along the front-back direction.

[0007] A further preferred embodiment is as follows: at least two top fixing components are provided on the writing board, one of which is used to connect and fix the writing board and the first display screen, and the other is used to connect and fix the writing board and the second display screen. The top fixing component of the writing board includes a U-shaped member with a downward opening, which is composed of a front side wall panel, a rear side wall panel and a top side wall panel. The front side wall panel has a top side positioning part for the display screen and a top side positioning part for the writing board. The middle part of the rear side wall panel is connected to a locking bolt for the display screen and a locking bolt for the writing board. The lower end of the rear side wall panel is fixedly connected to a second horizontal plate extending backward. The second horizontal plate is used in conjunction with a third connecting bolt to connect the second wall connector.

[0008] A further preferred embodiment is: a detachable support pad on the upper surface of the horizontal positioning strip of the writing board positioning area, the support pad being used to adjust the installation height of the writing board.

[0009] A further preferred embodiment is as follows: the first suspension latch and the second suspension latch are vertical latches fixedly installed on the front edge of the upper end of the main crossbeam. Each suspension bracket includes at least two connecting vertical beams arranged at intervals on the left and right. The upper part of each connecting vertical beam is provided with a suspension buckle that matches the vertical latch, and the lower part of each connecting vertical beam is connected with an adjusting bolt.

[0010] A further preferred embodiment is as follows: the first wall connector includes a third horizontal plate and a third vertical plate fixedly connected together. The third vertical plate is used to fix the wall, and the third horizontal plate is used to fix the horizontal positioning strip. Multiple first wall connectors are arranged at intervals along the left and right direction. Some of the third vertical plates extend upward relative to the third horizontal plate, and some of the third vertical plates extend downward relative to the third horizontal plate.

[0011] A further preferred embodiment is: the edge protection positioning strip is fixedly provided with the edge protection part of the display screen side at the end of the L-shaped edge strip.

[0012] A further preferred embodiment is as follows: the main crossbeam includes a first crossbeam, a second crossbeam, and a connecting crossbeam. The side end face of the first crossbeam is opposite to the side end face of the second crossbeam. The connecting crossbeam is located on the front or rear side of the first and second crossbeams. One end of the connecting crossbeam is connected and fixed to the first crossbeam by a fourth connecting bolt, and the other end of the connecting crossbeam is connected and fixed to the second crossbeam by a fifth connecting bolt.

[0013] A further preferred embodiment is: the L-shaped edge strip includes a first L-shaped edge strip on the left and a second L-shaped edge strip on the right, the first display screen positioning area is located on the first L-shaped edge strip, the second display screen positioning area is located on the second L-shaped edge strip, and the right end of the first L-shaped edge strip and the left end of the second L-shaped edge strip together constitute the writing board positioning area.

[0014] A further preferred embodiment is as follows: the L-shaped edge strip includes a first L-shaped edge strip on the left, a second L-shaped edge strip on the right, and a third L-shaped edge strip between the two; the first display screen positioning area is located on the first L-shaped edge strip, the second display screen positioning area is located on the second L-shaped edge strip, and the writing board positioning area is located on the third L-shaped edge strip; the right end of the first L-shaped edge strip and the left end of the third L-shaped edge strip are connected to the same first wall connector, and the left end of the second L-shaped edge strip and the right end of the third L-shaped edge strip are connected to the same first wall connector.

[0015] A further preferred embodiment is that a shelf is fixedly installed at the bottom of the front side of the L-shaped edge strip corresponding to the writing board positioning area.

[0016] The beneficial effects of this utility model are as follows: A protective positioning strip is added below the main crossbeam. The main body of the protective positioning strip is an L-shaped edge strip with a semi-enclosed structure, which can protect the display screen and writing board to a certain extent. At the same time, the vertical positioning edge strip of this L-shaped edge strip also serves as a positioning reference in the front and rear directions when the display screen and writing board are installed, making the front surfaces of the display screen and writing board flush. Furthermore, the first vertical plate, together with the vertical positioning edge strip, forms the front and rear positioning structure of the writing board, ensuring the reliability of the front and rear positioning structure of the display screen and writing board. Because the L-shaped edge strip has a semi-enclosed structure, it also has better versatility, applicable to display screens and writing boards of different thicknesses, can be mass-produced, and is suitable for various equipment installation scenarios, resulting in high efficiency. The L-shaped edge strip is connected and fixed to the first wall connector using a first connecting bolt, which is easy to install and disassemble, and convenient to maintain. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention without the display screen and writing board installed (front view as the main perspective);

[0018] Figure 2 yes Figure 1 A magnified view of part A;

[0019] Figure 3 yes Figure 1 The illustrated embodiment is shown as a three-dimensional structural diagram from another angle (main view from the rear);

[0020] Figure 4 yes Figure 3 A magnified view of part B;

[0021] Figure 5 yes Figure 3 A magnified view of a portion at point C;

[0022] Figure 6 yes Figure 3A magnified view of a portion at point D;

[0023] Figure 7 yes Figure 3 A magnified view of a portion at point E;

[0024] Figure 8 This is a three-dimensional structural diagram of the present invention after the display screen and writing board are installed (front view as the main perspective);

[0025] Figure 9 yes Figure 8 A magnified view of a portion at point F;

[0026] Figure 10 yes Figure 8 The illustrated embodiment is shown as a three-dimensional structural diagram from another angle (main view from the rear);

[0027] Figure 11 yes Figure 10 A magnified view of a portion of point G;

[0028] Figure 12 yes Figure 10 A magnified view of a portion at point H;

[0029] Figure 13 yes Figure 10 A magnified view of a portion at point K;

[0030] Figure 14 yes Figure 8 A front view of the embodiment shown;

[0031] Figure 15 This is a front view of another embodiment of the present invention after the display screen and writing board have been installed.

[0032] The diagram shows the following components: main crossbeam 10, first crossbeam 101, second crossbeam 102, connecting crossbeam 103, fourth connecting bolt 104, fifth connecting bolt 105, first suspension clip 11, second suspension clip 12, suspension bracket 13, adjusting bolt 14, first display screen 21, second display screen 22, writing board 23, edge protection positioning strip 30, first L-shaped edge strip 301, second L-shaped edge strip 302, third L-shaped edge strip 303, horizontal positioning edge strip 31, vertical positioning edge strip 32, first wall connector 33, first connecting bolt 34, first strip hole 35, second connecting bolt 36, second strip hole 37, support pad 38, display screen side edge protection part 39, shelf 310, writing board bottom fixing part 41, writing board top fixing part 42, second wall connector 43, third connecting bolt 44, third strip hole 45, display screen locking bolt 46, and writing board locking bolt 47. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings. It should be noted that the limitations on the front, back, left, and right directions in the present invention are merely for the purpose of facilitating understanding of the technical solution. The embodiments described below are all based on the reference state of the display screen facing forward after installation.

[0034] like Figures 1 to 15 As shown, this utility model includes a writing board fixing assembly and a main horizontal beam 10 for fixing and installing on a wall. The left side of the main horizontal beam 10 is provided with a first suspension latch 11 for suspending and installing a first display screen 21, and the right side is provided with a second suspension latch 12 for suspending and installing a second display screen 22. The first suspension latch 11 and the second suspension latch 12 are respectively equipped with suspension brackets 13, which have a display screen fixing connection structure. In specific implementation, the main horizontal beam 10 is generally fixed to the wall with expansion bolts, and the suspension brackets 13 are generally connected and fixed to the corresponding first display screen 21 and second display screen 22 with bolts. During installation, after the main horizontal beam 10 is fixed to the wall, the first display screen 21 and the second display screen 22 are respectively suspended and installed on the main horizontal beam 10. The two displays screens are kept at the same horizontal height after being hung, eliminating the need for vertical leveling, making installation convenient.

[0035] The writing board fixing assembly includes a bottom fixing member 41 and a top fixing member 42. The bottom fixing member 41 includes a first horizontal plate and a first vertical plate fixedly connected together. This utility model also includes an edge-protecting positioning strip 30 for fixing to a wall and located below the main beam 10. The edge-protecting positioning strip 30 includes an L-shaped edge strip extending laterally in the left-right direction. The L-shaped edge strip is composed of a horizontal positioning edge strip 31 and a vertical positioning edge strip 32 located on the front side of the upper surface of the horizontal positioning edge strip 31. A plurality of first wall connectors 33 are provided on the rear side of the horizontal positioning edge strip 31. The first wall connectors 33 are connected to the horizontal positioning edge strip 31 by first connecting bolts 34. At least one of the first wall connectors 33 and the horizontal positioning edge strip 31 is provided with a first strip-shaped hole 35 through which the first connecting bolts 34 pass. The length direction of the first strip-shaped hole 35 is along the front-back direction. (See reference...) Figures 3 to 6In the illustrated embodiment, a first strip-shaped hole 35 is provided on the first wall connector 33, and the horizontal positioning strip 31 is generally provided with a circular through hole that matches the first connecting bolt 34. By changing the connection position of the first connecting bolt 34 in the first strip-shaped hole 35, the edge-protecting positioning strip 30 can be fixedly installed in a suitable position in the front-back direction, thus adapting to displays of different thicknesses. This ensures that after the display is suspended and installed, the front side of the display can be aligned with the back of the vertical positioning strip 32. On the one hand, this allows the L-shaped strip to fully exert its protective function, and on the other hand, it allows the back of the vertical positioning strip 32 to serve as an alignment reference surface for the first display 21, the second display 22, and the writing board 23 in the front-back direction, ensuring that the three main body of the device are aligned in the front-back direction (specifically, the front sides are flush). The L-shaped strip includes a first display positioning area at the left end, a writing board positioning area in the middle, and a second display positioning area at the right end; the first display positioning area corresponds to the installation of the first display 21, the second display positioning area corresponds to the installation of the second display 22, and the writing board positioning area corresponds to the installation of the writing board 23. The writing board 23 in this utility model refers to a blackboard or whiteboard, and a blackboard is usually used.

[0036] The lower part of the suspension bracket 13 is connected to an adjusting bolt 14. The axis of the adjusting bolt 14 is set along the front-to-back direction. One end of the adjusting bolt 14 is used to abut against the wall. The adjusting bolt 14, together with the vertical positioning strip 32, forms the front-to-back positioning structure of the display screen. After the display screen is mounted, it may be tilted relative to the vertical plane due to gravity. The adjusting bolt 14 plays the role of preventing the display screen from tilting backward, ensuring that the front side of the display screen is set vertically and parallel to the back of the vertical positioning strip 32 and the wall.

[0037] The bottom fixing component 41 of the writing board is fixedly mounted on the upper surface of the horizontal positioning strip 31 in the positioning area of ​​the writing board by means of a first horizontal plate and a second connecting bolt 36. At least one of the first horizontal plate and the horizontal positioning strip 31 is provided with a second strip hole 37 through which the second connecting bolt 36 passes. The length direction of the second strip hole 37 is set along the front-back direction. The front-back positioning structure of the writing board is formed by the first vertical plate and the vertical positioning strip 32. For details, please refer to [reference needed]. Figure 3 , Figure 5 , Figure 10 and Figure 12In the illustrated embodiment, a second strip-shaped hole 37 is provided on the horizontal positioning strip 31. The first horizontal plate on the bottom fixing member 41 of the writing board typically has a circular through hole adapted to the second connecting bolt 36. By connecting the second connecting bolt 36 to different positions within the second strip-shaped hole 37, the writing board 23 of different thicknesses can be fixed in a front-to-back manner. After the writing board 23 is installed, it is fixed within the interval area between the first vertical plate and the vertical positioning strip 32 of the bottom fixing member 41. The number of bottom fixing members 41 can be one or more, but it is generally preferred to have one at each of the left and right ends of the writing board 23. If only one bottom fixing member 41 is provided, it should be centrally located and have sufficient length in the horizontal direction.

[0038] In some embodiments, the top fixing member 42 of the writing board only needs to achieve the connection and fixation between the top of the writing board 23 and the wall. It can be one or more ordinary fixing members connected to the back of the writing board 23. The rear end of the top fixing member 42 of the writing board is respectively provided with a second wall connector 43. The second wall connector 43 is connected to the top fixing member 42 of the writing board through a third connecting bolt 44. At least one of the second wall connector 43 and the top fixing member 42 of the writing board is provided with a third strip hole 45 for the third connecting bolt 44 to pass through. The length direction of the third strip hole 45 is arranged along the front-back direction. See reference. Figure 3 and Figure 7 In the illustrated embodiment, a third strip-shaped hole 45 is provided on the top fixing member 42 of the writing board, and the second wall connector 43 is generally provided with a circular through hole adapted to the third connecting bolt 44. By connecting the third connecting bolt 44 to different positions within the third strip-shaped hole 45, the writing boards 23 of different thicknesses can be connected and fixed at the top position. The first wall connector 33 and the second wall connector 43 can use common components in the art, typically including at least one vertical plate for connecting to the wall and one horizontal plate for connecting the installation object. In addition, necessary reinforcing ribs and positioning connecting flanges can be added according to the actual situation.

[0039] See Figure 3 as well as Figures 7 to 11In some preferred embodiments, at least two writing board top fixing members 42 are provided. One writing board top fixing member 42 is used to connect and fix the writing board 23 and the first display screen 21, and the other writing board top fixing member 42 is used to connect and fix the writing board 23 and the second display screen 22. The writing board top fixing member 42 includes a U-shaped member with a downward opening formed by a front side wall panel, a rear side wall panel and a top side wall panel. The front side wall panel has a display screen top side positioning part and a writing board top side positioning part. The middle part of the rear side wall panel is connected to the display screen locking bolt 46 and the writing board locking bolt 47. The lower end of the rear side wall panel is fixedly connected to a rearwardly extending second horizontal plate. The second horizontal plate cooperates with the third connecting bolt 44 to connect the second wall connector 43. In this embodiment, display screens of different thicknesses can be pressed and fixed to the front wall of the writing board top fixing member 42 using the display screen locking bolt 46, and writing boards 23 of different thicknesses can be pressed and fixed to the front wall of the writing board top fixing member 42 using the writing board locking bolt 47. The above solution uses two writing board top fixing members 42 to fix the writing board 23, the first display screen 21 and the second display screen 22 into a whole, which further improves the reliability of the overall structure.

[0040] See Figure 3 , Figure 5 , Figure 10 and Figure 12 In some preferred embodiments, a detachable support pad 38 is provided on the upper surface of the horizontal positioning strip 31 of the writing board positioning area. The support pad 38 is used to adjust the installation height of the writing board 23. One or more support pads 38 can be provided, preferably one at each of the left and right ends of the writing board 23. If only one support pad 38 is provided, it should be centrally located and have sufficient length in the horizontal direction. The support pad 38 is generally placed directly on the horizontal positioning strip 31 of the writing board positioning area. It is understood that the vertical positioning strip 32 needs to play a limiting role in the front-to-back direction; therefore, the top position of the support pad 38 should not be higher than the top position of the vertical positioning strip 32. The gap between the lower end of the writing board 23 and the upper surface of the horizontal positioning strip 31, as well as the support pad 38, are all covered by the vertical positioning strip 32 from the front. The support pad 38 is used to adjust the installation height of the writing board 23, mainly by adjusting the upper end of the writing board 23 to be as flush as possible with the upper ends of the two displays.

[0041] See Figure 10 and Figure 13To ensure structural simplicity and reliability, in some preferred embodiments, the first suspension latch 11 and the second suspension latch 12 are vertical latches fixedly mounted on the front edge of the upper end of the main crossbeam 10. Each suspension bracket 13 includes at least two connecting vertical beams arranged at left and right intervals. Each connecting vertical beam has a suspension buckle adapted to the vertical latch at its upper part, and an adjusting bolt 14 is connected to the lower part of each connecting vertical beam. This structural form is also more convenient for use with displays of different horizontal lengths. Using the above vertical latch structure, the first display 21 and the second display 22 can slide arbitrarily to a suitable position in the left and right directions, reserving appropriate installation space for the writing board 23. This solution is particularly suitable for use in combination with the above solution that uses two writing board top fixing parts 42 to fix the writing board 23, the first display 21, and the second display 22 into a single unit.

[0042] See Figure 3 and Figure 10 To make the structure simple and reliable, in some preferred embodiments, the first wall connector 33 includes a third horizontal plate and a third vertical plate fixedly connected together. The third vertical plate is used to fix the wall, and the third horizontal plate is used to fix the horizontal positioning strip 31. Multiple first wall connectors 33 are arranged at intervals along the left and right direction. Some of the third vertical plates extend upward relative to the third horizontal plate, and some of the third vertical plates extend downward relative to the third horizontal plate.

[0043] See Figure 1 , Figure 3 , Figure 4 , Figure 8 and Figure 10 To ensure structural reliability and enhance the protective function of the edge-protecting positioning strip 30, in some preferred embodiments, the edge-protecting positioning strip 30 has a display screen side edge-protecting part 39 fixedly provided at the end of the L-shaped edge strip. One display screen side edge-protecting part 39 at the left end covers the bottom left corner of the first display screen 21, and one display screen side edge-protecting part 39 at the right end covers the bottom right corner of the second display screen 22. The display screen side edge-protecting part 39 generally adopts a semi-enclosed structure corresponding to the L-shaped edge strip.

[0044] The main crossbeam 10 can be a single, integral piece, or it can be assembled from multiple crossbeams, taking into account the overall structural reliability, the convenience of transportation and packaging, and the ease of connection and assembly. (See [reference needed]). Figure 1 and Figure 2In some preferred embodiments, the main crossbeam 10 includes a first crossbeam 101, a second crossbeam 102, and a connecting crossbeam 103. The side end face of the first crossbeam 101 is opposite to the side end face of the second crossbeam 102. The connecting crossbeam 103 is disposed on the front or rear side of the first crossbeam 101 and the second crossbeam 102. One end of the connecting crossbeam 103 is connected and fixed to the first crossbeam 101 by a fourth connecting bolt 104, and the other end of the connecting crossbeam 103 is connected and fixed to the second crossbeam 102 by a fifth connecting bolt 105.

[0045] The L-shaped edge strip can be a single piece or assembled from multiple L-shaped edge strips. Taking into account the overall structural reliability, the convenience of transportation and packaging, and the ease of connection and assembly, this utility model provides the following two preferred embodiments.

[0046] The first preferred embodiment is described below. Figure 15 The L-shaped edge strip includes a first L-shaped edge strip 301 located on the left and a second L-shaped edge strip 302 located on the right. The first display screen positioning area is located on the first L-shaped edge strip 301, and the second display screen positioning area is located on the second L-shaped edge strip 302. The right end of the first L-shaped edge strip 301 and the left end of the second L-shaped edge strip 302 together constitute the writing board positioning area.

[0047] The second preferred embodiment is described below. Figure 8 and Figure 14 The L-shaped edge strip includes a first L-shaped edge strip 301 on the left, a second L-shaped edge strip 302 on the right, and a third L-shaped edge strip 303 between the two. The first display screen positioning area is located on the first L-shaped edge strip 301, the second display screen positioning area is located on the second L-shaped edge strip 302, and the writing board positioning area is located on the third L-shaped edge strip 303. The right end of the first L-shaped edge strip 301 and the left end of the third L-shaped edge strip 303 are connected to the same first wall connector 33, and the left end of the second L-shaped edge strip 302 and the right end of the third L-shaped edge strip 303 are connected to the same first wall connector 33.

[0048] See Figure 1 and Figure 8 In some preferred embodiments, a shelf 310 is fixedly installed at the bottom of the front side of the L-shaped edge strip corresponding to the writing board positioning area. The shelf 310 can be used to place teaching tools such as chalk and blackboard eraser, making it more convenient and practical. The shelf 310 can be integrally formed using a flanged structure, or it can be fixed using screws or welding.

Claims

1. A bracket for mounting multiple displays and a writing board, comprising a writing board fixing assembly and a main beam (10) for fixing to a wall, wherein the left side of the main beam (10) is provided with a first suspension latch (11) for suspending a first display (21) and the right side is provided with a second suspension latch (12) for suspending a second display (22), the first suspension latch (11) and the second suspension latch (12) are respectively provided with a suspension bracket (13), the suspension bracket (13) having a display board fixing connection structure, the writing board fixing assembly comprising a writing board bottom fixing member (41) and a writing board top fixing member (42), the writing board bottom fixing member (41) comprising a first horizontal plate and a first vertical plate fixedly connected together, characterized in that: It also includes an edge-protecting positioning strip (30) for fixing to the wall and located below the main beam (10). The edge-protecting positioning strip (30) includes an L-shaped edge strip extending laterally in the left-right direction. The L-shaped edge strip is composed of a horizontal positioning edge strip (31) and a vertical positioning edge strip (32) located on the front side of the upper surface of the horizontal positioning edge strip (31). Several first wall connectors (33) are provided on the rear side of the horizontal positioning edge strip (31). The first wall connectors (33) are connected to the horizontal positioning edge strip (31) by first connecting bolts (34). Next, at least one of the first wall connector (33) and the horizontal positioning strip (31) is provided with a first strip hole (35) through which the first connecting bolt (34) passes. The length direction of the first strip hole (35) is set along the front-back direction. The L-shaped strip includes a first display screen positioning area at the left end, a writing board positioning area in the middle, and a second display screen positioning area at the right end. The lower part of the hanging bracket (13) is connected to an adjusting bolt (14). The axial direction of the adjusting bolt (14) is set along the front-back direction. One end is used to abut against the wall, and the adjustment bolt (14) and the vertical positioning strip (32) form the front and rear positioning structure of the display screen; the bottom fixing part (41) of the writing board is fixedly set on the upper surface of the horizontal positioning strip (31) of the writing board positioning area by the first horizontal plate and the second connecting bolt (36). At least one of the first horizontal plate and the horizontal positioning strip (31) is provided with a second strip hole (37) through which the second connecting bolt (36) passes. The length direction of the second strip hole (37) is set along the front and rear direction, and the first vertical plate is used to fix the screen. The vertical positioning strip (32) forms a front-to-back positioning structure for the writing board; the rear end of the top fixing member (42) of the writing board is provided with a second wall connector (43), the second wall connector (43) is connected to the top fixing member (42) of the writing board through a third connecting bolt (44), at least one of the second wall connector (43) and the top fixing member (42) of the writing board is provided with a third strip hole (45) through which the third connecting bolt (44) passes, and the length direction of the third strip hole (45) is set along the front-to-back direction.

2. The mounting bracket for mounting multiple displays and writing tablets as described in claim 1, characterized in that: The top fixing member (42) of the writing board is provided in at least two parts, one of which is used to connect and fix the writing board (23) and the first display screen (21), and the other is used to connect and fix the writing board (23) and the second display screen (22). The top fixing member (42) of the writing board includes a U-shaped member with an opening facing downward, which is composed of a front side wall panel, a rear side wall panel and a top side wall panel. The front side wall panel has a top side positioning part of the display screen and a top side positioning part of the writing board. The middle part of the rear side wall panel is connected to the display screen locking bolt (46) and the writing board locking bolt (47). The lower end of the rear side wall panel is fixedly connected to a second horizontal plate extending backward. The second horizontal plate is used in conjunction with the third connecting bolt (44) to connect the second wall connector (43).

3. The mounting bracket for mounting multiple displays and writing tablets as described in claim 2, characterized in that: The upper surface of the horizontal positioning strip (31) of the writing board positioning area is provided with a detachable support pad (38), which is used to adjust the installation height of the writing board (23).

4. The mounting bracket for mounting multiple displays and writing tablets as described in claim 1, characterized in that: The first suspension latch (11) and the second suspension latch (12) are vertical latches fixedly installed on the front edge of the upper end of the main crossbeam (10). Each suspension bracket (13) includes at least two connecting vertical beams arranged at intervals on the left and right. Each connecting vertical beam has a suspension buckle adapted to the vertical latch on its upper part and an adjusting bolt (14) connected to its lower part.

5. The mounting bracket for mounting multiple displays and writing tablets as described in claim 1, characterized in that: The first wall connector (33) includes a third horizontal plate and a third vertical plate that are fixedly connected together. The third vertical plate is used to fix the wall, and the third horizontal plate is used to fix the horizontal positioning strip (31). Multiple first wall connectors (33) are arranged at intervals along the left and right direction. Some of the third vertical plates extend upward relative to the third horizontal plate, and some of the third vertical plates extend downward relative to the third horizontal plate.

6. The mounting bracket for mounting multiple displays and writing tablets as described in claim 1, characterized in that: The edge protection positioning strip (30) has a display screen side edge protection part (39) fixedly installed at the end of the L-shaped edge strip.

7. The mounting bracket for mounting multiple displays and writing tablets as described in claim 1, characterized in that: The main crossbeam (10) includes a first crossbeam (101), a second crossbeam (102) and a connecting crossbeam (103). The side end face of the first crossbeam (101) is opposite to the side end face of the second crossbeam (102). The connecting crossbeam (103) is located on the front or rear side of the first crossbeam (101) and the second crossbeam (102). One end of the connecting crossbeam (103) is connected and fixed to the first crossbeam (101) by a fourth connecting bolt (104), and the other end of the connecting crossbeam (103) is connected and fixed to the second crossbeam (102) by a fifth connecting bolt (105).

8. The mounting bracket for mounting multiple displays and writing tablets as described in any one of claims 1 to 7, characterized in that: The L-shaped edge strip includes a first L-shaped edge strip (301) on the left and a second L-shaped edge strip (302) on the right. The first display screen positioning area is located on the first L-shaped edge strip (301), and the second display screen positioning area is located on the second L-shaped edge strip (302). The right end of the first L-shaped edge strip (301) and the left end of the second L-shaped edge strip (302) together constitute the writing board positioning area.

9. The mounting bracket for mounting multiple displays and writing tablets as described in any one of claims 1 to 7, characterized in that: The L-shaped edge strip includes a first L-shaped edge strip (301) on the left, a second L-shaped edge strip (302) on the right, and a third L-shaped edge strip (303) between the two. The first display screen positioning area is located on the first L-shaped edge strip (301), the second display screen positioning area is located on the second L-shaped edge strip (302), and the writing board positioning area is located on the third L-shaped edge strip (303). The right end of the first L-shaped edge strip (301) and the left end of the third L-shaped edge strip (303) are connected to the same first wall connector (33), and the left end of the second L-shaped edge strip (302) and the right end of the third L-shaped edge strip (303) are connected to the same first wall connector (33).

10. The mounting bracket for mounting multiple displays and writing tablets as described in any one of claims 1 to 7, characterized in that: A shelf (310) is fixedly installed at the bottom of the front side of the L-shaped edge strip corresponding to the writing board positioning area.

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