Adjustable teaching display board

Abstract

The utility model discloses an adjustable teaching display board, which comprises a main board, side extension boards are telescopically arranged on two sides of the main board, two support rods are parallelly arranged at the lower end of the main board, and side rods are movably arranged between the side extension boards and the support rods. A limiting block is movably arranged on the outer portion of each supporting rod, a locking structure used for limiting movement of the corresponding side rod is arranged between each supporting rod and the corresponding limiting block, and when the side extending plates are unfolded relative to the main plate, the side extending plates, the supporting rods and the side rods jointly define a triangular structure. According to the adjustable teaching display board of the structure, the writing area is increased through the side extending plates, the positions of the side extending plates are stabilized through cooperation of the side rods and the limiting blocks, and the use experience of people can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of teaching aids, especially to an adjustable teaching display board. BACKGROUND

[0002] In the learning and education process of students, teachers generally write on the display board to teach students. However, the structure of the existing display board is relatively fixed, and when the teacher writes for a long time, there is no free space on the display board to continue writing, and the teacher needs to erase the previously written content and write again, which is relatively troublesome. At present, some display boards with side extension plates have appeared in the prior art. The side extension plate moves or rotates relative to the display board, so that the side extension plate can be stored or unfolded to form a larger writing area. However, the existing side extension plate lacks a stable locking structure, which causes the side extension plate to shake or move during writing, reducing the user experience. SUMMARY

[0003] In view of the above problems, the utility model provides an adjustable teaching display board which not only increases the writing area through the side extension plate, but also stabilizes the position of the side extension plate by cooperating the side rod and the limiting block, thereby improving the user experience.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] An adjustable teaching display board comprises a main plate, side extension plates telescopically arranged on both sides of the main plate, two support rods parallelly arranged at the lower end of the main plate, side rods movably arranged between the side extension plates and the support rods, limiting blocks movably arranged on the outside of each support rod, a locking structure arranged between the support rod and the limiting block for limiting the movement of the corresponding side rod, and the side extension plate, the support rod and the side rod collectively form a triangular structure when the side extension plate is unfolded relative to the main plate.

[0006] The adjustable teaching display board according to the utility model embodiment has the following beneficial effects: when the writing area needs to be increased, the locking structure is unlocked first, then the side extension plate is moved to extend relative to the main plate to increase the writing area, and finally the side extension plate is moved to the specified position, and the side rod is moved to be inclined to form a triangular structure with the side extension plate and the support rod, and the position of the side rod is limited by the locking structure, thereby stabilizing the position of the side extension plate to avoid movement during writing and improving the user experience. When the writing area does not need to be increased, the locking structure can be unlocked to overlap the main plate to achieve the storage effect, thereby meeting the different needs of teaching.

[0007] Further, one end of the side rod is rotatably connected to the side extension plate, and the other end of the side rod is rotatably connected with a mounting sleeve, and the mounting sleeve is slidably sleeved on the support rod.

[0008] Further, the locking structure comprises a first mounting hole arranged on the limiting block, the support rod is provided with a plurality of second mounting holes along the length direction of the support rod, the first mounting hole is connected with one of the second mounting holes through a pin shaft, a cross rod is connected between the two limiting blocks, and each mounting sleeve is detachably connected to the corresponding limiting block.

[0009] Further, the limiting block is provided with a limiting sleeve, the limiting sleeve is provided with an installation slot with an opening facing upward, and the inner wall of the installation slot is provided with a limiting groove.

[0010] Further, the support rod is a square rod, and the mounting sleeve is provided with a rectangular hole matched with the square rod, so that the mounting sleeve and the support rod are in plane contact.

[0011] Further, the main plate is provided with a receiving hole penetrating in the horizontal direction, the side extension plate is in plane contact with the side wall of the receiving hole, and the side extension plate can be moved to be accommodated in the receiving hole.

[0012] Further, the lower end of the main plate is provided with an avoiding hole communicated with the receiving hole, one end of the side rod is rotatably connected to the lower end of the side extension plate away from the main plate, and the side rod can be moved to be built-in in the avoiding hole.

[0013] Further, the upper end of the support rod is welded with the main plate, and the lower end of the support rod is connected with a mounting seat, and the mounting seat is provided with four universal wheels distributed in a rectangular shape.

[0014] Further, the side wall of the side extension plate away from the main plate is provided with a rectangular frame which can be pulled by a hand.

[0015] The additional aspects and advantages of the present application will be partially given in the following description, and some will become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the following drawings, in which:

[0017] Figure 1 It is a structural schematic view of one embodiment of the adjustable teaching display board of the present application.

[0018] Figure 2 It is a structural schematic view of one embodiment of the adjustable teaching display board of the present application. Figure 1a structural schematic view of another perspective of the

[0019] Figure 3 for Figure 1 a vertical sectional view of a partial support rod of the

[0020] In the figure: main plate 100, receiving hole 101, side extension plate 110, support rod 120, second mounting hole 121, pin shaft 122, side rod 130, limiting block 140, limiting sleeve 141, cross rod 142, mounting sleeve 150, elastic strip 151, mounting seat 160. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] In the description of the present application, it should be noted that the terms "inner", "front", "rear", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0023] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more. Greater than, less than, exceeding, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If the terms "first", "second" are described, they are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Referring to Figures 1 to 3The utility model provides an adjustable teaching display board, which comprises a main plate 100, side extension plates 110 telescopically arranged on both sides of the main plate 100, two support rods 120 parallelly arranged at the lower end of the main plate 100, side rods 130 movably arranged between the side extension plates 110 and the support rods 120, limit blocks 140 movably arranged on the outer part of each support rod 120, locking structures arranged between the support rods 120 and the limit blocks 140 for limiting the movement of the corresponding side rods 130, and the side extension plates 110, the support rods 120 and the side rods 130 collectively form a triangular structure when the side extension plates 110 are unfolded relative to the main plate 100.

[0026] The adjustable teaching display board with the above structure can increase the writing area when needed by unlocking the locking structures, moving the side extension plates 110 so that the side extension plates 110 can extend relative to the main plate 100, and finally moving the side extension plates 110 to the designated position and moving the side rods 130 to be inclined so that the side extension plates 110, the support rods 120 and the side rods 130 collectively form a triangular structure, and the position of the side rods 130 is limited by the locking structures, thereby stabilizing the position of the side extension plates 110 to avoid movement during writing and improving the user experience. When the writing area does not need to be increased, the locking structures can be unlocked so that the side extension plates 110 can overlap the main plate 100 to achieve the storage effect, thereby reducing the occupied space of the device to meet different needs.

[0027] Referring to Figures 1 to 3 Further, one end of the side rod 130 is rotatably connected to the side extension plate 110, and the other end of the side rod 130 is rotatably connected to a mounting sleeve 150, which is slidably sleeved on the support rod 120. Specifically, the lower end surface of the side extension plate 110 is parallelly provided with two first mounting plates, one end of the side rod 130 is connected between the two first mounting plates through a pivot, and the side wall of the mounting sleeve 150 is parallelly provided with two second mounting plates, and the other end of the side rod 130 is connected between the two second mounting plates through a pivot, so that the side rod 130 is movably arranged between the side extension plate 110 and the mounting sleeve 150, thereby facilitating the adjustment of the position of the side rod 130 to support and stabilize the side extension plate 110.

[0028] Referring to Figures 1 to 3Further, the locking structure comprises a first mounting hole arranged on the limiting block 140, the support rod 120 is provided with a plurality of second mounting holes 121 along the length direction, the first mounting hole is connected with one of the second mounting holes 121 through a pin shaft 122, a cross rod 142 is connected between the two limiting blocks 140, and each mounting sleeve 150 is detachably connected to the corresponding limiting block 140. Specifically, the mounting sleeve 150 is connected to the corresponding limiting block 140, and the height position of the mounting sleeve 150 is quickly fixed by cooperating the first mounting hole with the second mounting hole 121 of the corresponding height, so as to fix the lower end position of the side rod 130 to stabilize the side extension plate 110. Wherein, the two limiting blocks 140 are connected into one by the cross rod 142, so that the two side extension plates 110, the two side rods 130 and the cross rod 142 can be enclosed into a trapezoidal structure, which further improves the stability of the two side extension plates 110 after unfolding, and is also beneficial to quickly locking the lower end position of the two side rods 130 by fixing one of the limiting blocks 140, so as to reduce the number of locking structures. In addition, the mounting sleeve 150 shell is detachably connected to the corresponding limiting block 140, which is beneficial to unlocking one of the mounting sleeves 150 to individually store the corresponding side extension plate 110, so as to meet the different needs of the user.

[0029] Referring to Figures 1 to 3 Further, the limiting block 140 is provided with a limiting sleeve 141, the limiting sleeve 141 is provided with a mounting groove with an opening facing upward, the inner wall of the mounting groove is provided with a limiting groove, and the lower end of the mounting sleeve 150 is provided with an elastic strip 151 matched with the limiting groove, so that the limiting sleeve 141 and the limiting block 140 form an elastic buckle cooperation, which is beneficial to quickly install or disassemble the mounting sleeve. Wherein, in use, the mounting sleeve 150 is first inserted downward into the mounting groove, so that the elastic strip 151 can be embedded in the limiting groove, thereby connecting the mounting sleeve 150 and the limiting block 140 into one, then the side extension plate 110 is moved horizontally, so that the side extension plate 110 can be extended or retracted relative to the main plate 100, at the same time, the mounting sleeve 150 moves upward or downward, finally, the second mounting hole 121 with a suitable height is selected, the pin shaft 122 is inserted into the first mounting hole and the corresponding second mounting hole 121, so as to quickly fix the position of the lower end of the side rod 130, thereby making the side extension plate 110, the side rod 130 and the support rod 120 collectively enclosed into a triangular structure, which is beneficial to stabilize the position of the side extension plate 110 after moving. In some embodiments, the cooperation between the elastic strip 151 and the limiting groove can also be replaced by the magnetic attraction cooperation of two magnets, so as to fix the mounting sleeve 150 in the mounting groove by magnetic attraction.

[0030] Referring to Figures 1 to 3Further, the support rod 120 is a square rod, the mounting sleeve 150 is provided with a rectangular hole matched with the square rod, so that the mounting sleeve 150 and the support rod 120 are in plane contact, which is beneficial to guide and limit the movement of the mounting sleeve 150, thereby avoiding the deflection of the movement of the mounting sleeve 150 and affecting the supporting effect of the side rod 130.

[0031] Referring to Figure 3 Further, the main plate 100 is provided with a receiving hole 101 penetrating in the horizontal direction, the side extension plate 110 is in plane contact with the side wall of the receiving hole 101, and the side extension plate 110 can be moved to be accommodated in the receiving hole 101, so that the two side extension plates 110 can be correspondingly overlapped on the main plate 100, thereby facilitating the accommodation of the side extension plate 110 to reduce the occupied space.

[0032] Further, the lower end of the main plate 100 is provided with an avoiding hole communicated with the receiving hole 101, one end of the side rod 130 is rotatably connected to the lower end of the side extension plate 110 away from the main plate 100, and the side rod 130 can be moved to be accommodated in the avoiding hole, so that the side rod 130 can be folded to a larger angle relative to the support rod 120, thereby facilitating the further reduction of the occupied space of the device.

[0033] Referring to Figure 1 and 2 Further, the upper end of the support rod 120 is welded to the main plate 100, and the lower end of the support rod 120 is connected with a mounting seat 160, and the mounting seat 160 is provided with four universal wheels distributed in a rectangular shape, thereby facilitating the movement of the device to a suitable position by people. It can be understood that the universal wheel can adopt the existing universal wheel with a locking structure, thereby facilitating the fixation of the position of the universal wheel after movement by the locking structure.

[0034] Further, the side wall of the side extension plate 110 away from the main plate 100 is provided with a rectangular frame which can be pulled by a hand, thereby facilitating the movement of the side extension plate 110 by the rectangular frame.

[0035] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present application.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An adjustable teaching display board, characterized by, Include: The main plate (100), both sides of the main plate (100) are provided with side extension plate (110) telescopically, the lower end of the main plate (100) is provided with two support rods (120) in parallel, the side extension plate (110) and the support rod (120) are movably provided with side rod (130), the outer part of each support rod (120) is movably provided with limit block (140), the support rod (120) and the limit block (140) are provided with locking structure for limiting the movement of the corresponding side rod (130), when the side extension plate (110) is unfolded relative to the main plate (100), the side extension plate (110), the support rod (120) and the side rod (130) are collectively enclosed in a triangular structure.

2. The adjustable teaching display board of claim 1, wherein, One end of the side rod (130) is rotatably connected to the side extension plate (110), the other end of the side rod (130) is rotatably connected with the mounting sleeve (150), the mounting sleeve (150) is slidably sleeved on the support rod (120).

3. An adjustable teaching display board according to claim 2, wherein, The locking structure includes a first mounting hole provided on the limit block (140), the support rod (120) is provided with a plurality of second mounting holes (121) along its length direction, the first mounting hole and one of the second mounting holes (121) are connected by a pin shaft (122), a cross bar (142) is connected between two limit blocks (140), each mounting sleeve (150) is detachably connected to the corresponding limit block (140).

4. The adjustable teaching display board of claim 2, wherein, The limit block (140) is provided with a limit sleeve (141), the limit sleeve (141) is provided with an installation slot with the opening facing upward, the inner wall of the installation slot is provided with a limit slot, the lower end of the mounting sleeve (150) is provided with an elastic strip (151) matched with the limit slot.

5. The adjustable teaching display board of claim 2, wherein, The support rod (120) is a square rod, the mounting sleeve (150) is provided with a rectangular hole matched with the square rod.

6. The adjustable teaching display board of claim 2, wherein, The main plate (100) is provided with a receiving hole (101) penetrating in the horizontal direction, the side extension plate (110) is in plane contact with the side wall of the receiving hole (101), the side extension plate (110) can be moved to be accommodated in the receiving hole (101).

7. An adjustable teaching display board according to claim 6, wherein, The lower end of the main plate (100) is provided with an avoidance hole communicating with the receiving hole (101), one end of the side rod (130) is rotatably connected to the lower end of the side extension plate (110) away from the main plate (100), the side rod (130) can be moved to be built-in in the avoidance hole.

8. The adjustable teaching display board of claim 1, wherein, The upper end of the support rod (120) is welded to the main plate (100), the lower end of the support rod (120) is connected with a mounting seat (160), the mounting seat (160) is provided with four universal wheels distributed in a rectangular shape.

9. The adjustable teaching display board of claim 1, wherein, The side wall of the side extension plate (110) away from the main plate (100) is provided with a rectangular frame which can be pulled by hand.

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