A teaching display stand

Abstract

The utility model relates to the technical field of teaching apparatus, disclose a kind of teaching display stand, with the first direction and the second direction of two two intersections, including support, writing board, two groups of adjusting components and two groups of telescopic components;The support includes two first legs and two second legs, the top of the first leg is provided with a chute;The adjusting component has first axis, the adjusting component is movably connected with the first leg, the adjusting component can drive the writing board rotate around the first axis;One end of the telescopic component is connected with the adjusting component, and the other end is connected with the chute side wall, the length of the telescopic component in the first direction changes, to make the height of the writing board in vertical direction change.The utility model has the beneficial effect that: directly adjust the use angle and height of writing board, simple operation, easy to control adjustment accuracy, improve safety performance, improve the fluency of teaching and the use experience of teacher.

Description

Technical Field

[0001] This utility model relates to the field of teaching equipment technology, and in particular to a teaching display rack. Background Technology

[0002] A teaching display stand is an auxiliary tool used in teaching. It can be used to promote knowledge and information and to assist teachers in educating students. A teaching display stand generally includes a stand and a writing board. The writing board can be used for writing and to assist teachers in demonstration teaching. At the same time, the writing board can also be used to display some paintings or promotional materials, which is beneficial for teachers to explain and teach.

[0003] In existing technologies, the support and writing board of a teaching display stand are generally fixed. Due to differences in teachers' height and writing and explanation habits, the angle and height of the writing board vary. When it is necessary to adjust the angle and height of the writing board, it is generally necessary to adjust the support posture of the support (the opening and closing angle of the legs) to indirectly adjust the angle and height of the writing board. During the adjustment process, the center of gravity of the support changes, making it easy to tip over, which poses certain safety hazards. Moreover, it is not easy to control the adjustment accuracy, which seriously affects the smoothness of teaching and the teacher's user experience. Utility Model Content

[0004] The purpose of this utility model is to provide a teaching display stand that allows direct adjustment of the writing board's angle and height, is simple to operate, easy to control the adjustment precision, improves safety performance, enhances the smoothness of teaching, and improves the teacher's user experience.

[0005] To achieve the above objectives, this utility model provides a teaching display rack with a first direction and a second direction that intersect each other, including a support, a writing board, two sets of adjustment components and two sets of telescopic components;

[0006] The bracket includes two first legs and two second legs. The two first legs extend in the first direction and are spaced apart in the second direction. The two second legs extend in the second direction and are spaced apart in the second direction. One end of one first leg is hinged to one end of one second leg. A groove is provided on the top of the first leg.

[0007] The writing board is positioned between the two first legs;

[0008] The two sets of adjustment components are respectively disposed at both ends of the writing board in the second direction. The adjustment component has a first axis, which is parallel to the second direction. The adjustment component is disposed in the slide groove and fixedly connected to the writing board. The adjustment component is movably connected to the first support leg. The adjustment component can drive the writing board to rotate around the first axis.

[0009] The two sets of telescopic components correspond one-to-one with the adjustment components. The telescopic components are located in the slide groove. One end of the telescopic component is connected to the adjustment component, and the other end is connected to the side wall of the slide groove. The length of the telescopic component changes in the first direction so that the height of the adjustment component and the writing board changes in the vertical direction.

[0010] Furthermore, the adjustment assembly includes a slider, a rotating shaft, a connecting plate, and a pin; the slider is disposed in the groove, the rotating shaft extends in the second direction, and one end passes through the slider and is fixedly connected to the writing board, the rotating shaft has the first axis, the rotating shaft is rotatably connected to the slider, the other end of the rotating shaft is movably connected to the connecting plate, the connecting plate has a strip-shaped groove along its length, and the end of the pin passes through the strip-shaped groove and is inserted into the insertion hole on the slider.

[0011] Furthermore, the telescopic assembly includes a cylinder, a connecting rod, a spring, and a locking screw; the cylinder and the connecting rod extend in the first direction, the cylinder is disposed in the slide groove and one end is fixedly connected to the slider, one end of the connecting rod is fixedly connected to the side wall of the slide groove, and the other end is inserted into the cylinder, the connecting rod is sleeved with the spring, one end of the spring abuts against the cylinder and the other end abuts against the side wall of the slide groove, the spring has a tendency to push the cylinder to move away from the connecting rod, the cylinder near the end of the connecting rod has a threaded hole, the threaded section of the locking screw is inserted into the threaded hole and the end abuts against the side wall of the connecting rod.

[0012] Furthermore, the side wall of the connecting rod is provided with a positioning plane that abuts against the end face of the threaded section of the locking screw.

[0013] Furthermore, the end of the rotating shaft away from the writing board is provided with a handle, and the side wall of the handle near the rotating shaft is provided with ear plates spaced apart in the second direction. A pin is fixed between the ear plates, and the connecting plate is rotatably connected to the pin.

[0014] Furthermore, it also includes a transparent cover plate that is hinged to the top of the writing board.

[0015] Furthermore, the slider includes a positioning part and a guide part, the positioning part being located outside the slide groove and facing the writing board, and the guide part being located inside the slide groove.

[0016] Furthermore, it also includes a shelf, which is located between the two second legs and below the writing board, with a storage slot for placing teaching aids on the top of the shelf.

[0017] Furthermore, a first stop is provided on the side wall of the first leg near the second leg, the first stop being used to limit the opening angle between the first leg and the second leg.

[0018] Furthermore, a second stop is provided on the side wall of the first leg near the second leg, and the second leg is located between the first stop and the second stop.

[0019] Compared with the prior art, the teaching display rack of this utility model has the following advantages: it includes a support, a writing board, a shelf, two sets of adjustment components, and two sets of telescopic components; wherein, the support includes two first legs and two second legs, the two first legs extend in a first direction and are spaced apart in a second direction; the two second legs extend in the second direction and are spaced apart in the second direction, one end of one first leg is hinged to one end of one second leg, the top of the first leg has a sliding groove extending in the first direction, the writing board is placed between the two first legs, and the two sets of adjustment components are respectively placed at both ends of the writing board in the second direction. The adjustment components have a first axis, are placed in the sliding groove and are fixedly connected to the writing board, and are adjusted... The component is movably connected to the first support leg. The adjustment component can drive the writing board to rotate around the first axis, directly adjusting the usage angle of the writing board, which is easy to operate. Two sets of telescopic components correspond one-to-one with the adjustment component. The telescopic components are located in the slide groove. One end of the telescopic component is connected to the adjustment component, and the other end is connected to the side wall of the slide groove. By adjusting the length of the telescopic component in the first direction, the height of the adjustment component and the writing board in the vertical direction can be changed, directly adjusting the usage height of the writing board. This is easy to operate. While adjusting the angle and height of the writing board, there is no need to adjust the opening and closing angle of the support leg, avoiding changes in the center of gravity of the support. It is easy to control the adjustment accuracy, improve safety performance, enhance the smoothness of teaching, and improve the teacher's user experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the teaching display rack according to an embodiment of this utility model;

[0021] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0022] Figure 3 This is a schematic diagram of the transparent cover of the teaching display rack in the open state according to an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the telescopic component of the teaching display rack according to an embodiment of this utility model.

[0024] In the diagram, 1. Support; 11. First leg; 12. Second leg; 111. Slide; 112. First stop; 113. Second stop; 2. Writing board; 21. Connecting seat; 22. Pin; 3. Adjustment assembly; 31. Slider; 311. Insertion hole; 312. Positioning part; 313. Guide part; 32. Rotating shaft; 321. Handle; 322. Ear plate; 323. Pin; 33. Connecting plate; 331. Strip groove; 34. Pin; 35. Bearing; 4. Telescopic assembly; 41. Cylinder; 42. Connecting rod; 421. Positioning plane; 43. Spring; 44. Locking screw; 5. Transparent cover; 6. Shelf; 61. Storage slot; X, First direction; Y, Second direction. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device and element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0028] like Figures 1 to 4 As shown, a preferred embodiment of this utility model provides a teaching display rack with intersecting first direction X and second direction Y. It includes a support 1, a writing board 2, two sets of adjustment components 3, and two sets of telescopic components 4. The support 1 serves as a mounting carrier for mounting the writing board 2, adjustment components 3, and telescopic components 4. The support 1 includes two first legs 11 and two second legs 12. For ease of explanation, the length direction of the first legs 11 is defined as the first direction X, and the thickness direction of the first legs 11 is defined as the second direction Y. Figure 1As shown, two first legs 11 extend in the first direction X and are spaced apart in the second direction Y; two second legs 12 extend in the second direction Y and are spaced apart in the second direction Y, with one end of each first leg 11 hinged to the other. To facilitate the installation of the adjustment assembly 3 and the telescopic assembly 4, and to reduce the overall volume of the teaching display rack, a groove 111 is provided on the top of each first leg 11; the writing board 2 is located between the two first legs 11.

[0029] For easier adjustment of the angle and height of writing board 2, please refer to... Figure 1 , Figure 2 Two sets of adjustment components 3 are respectively located at both ends of the writing board 2 in the second direction Y. The adjustment component 3 has a first axis, which is parallel to the second direction Y. The adjustment component 3 is located in the slide groove 111 and is fixedly connected to the writing board 2. The adjustment component 3 is movably connected to the first support leg 11. The adjustment component 3 can drive the writing board 2 to rotate around the first axis. Two sets of telescopic components 4 correspond one-to-one with the adjustment components 3, that is, one telescopic component 4 corresponds to one adjustment component 3. The telescopic components 4 are located in the slide groove 111. One end of the telescopic component 4 is connected to the adjustment component 3, and the other end is connected to the side wall of the slide groove 111. The length of the telescopic component 4 changes in the first direction X, so that the height of the adjustment component 3 and the writing board 2 in the vertical direction changes. The angle of the writing board 2 can be directly adjusted by the adjustment component 3, and the height of the writing board 2 can be directly adjusted by the telescopic component 4. It is easy to operate. While adjusting the angle and height of the writing board 2, there is no need to adjust the opening and closing angle of the first support 11 and the second support 12, avoiding changes in the center of gravity of the support 1, making it easy to control the adjustment accuracy, improving safety performance, enhancing the smoothness of teaching and the teacher's user experience.

[0030] In this embodiment, to facilitate the rotation of the writing board 2 while ensuring that the position of the writing board 2 remains fixed after the angle is rotated, please refer to [reference needed]. Figure 2 The adjustment assembly 3 includes a slider 31, a rotating shaft 32, a connecting plate 33, and a pin 34. The slider 31 is located within a groove 111. The rotating shaft 32 extends in the second direction Y, with one end passing through the slider 31 and fixedly connected to the writing board 2. The rotating shaft 32 has a first axis and is rotatably connected to the slider 31. Specifically, the rotating shaft 32 and the slider 31 are rotatably connected via a bearing. The other end of the rotating shaft 32 is movably connected to the connecting plate 33. The connecting plate 33 has a strip-shaped groove 331 along its length. The end of the pin 34 passes through the strip-shaped groove 331 and is inserted into the insertion hole 311 on the slider 31. When adjusting the angle of the writing board 2, first, the pin 34 is pulled out, and the rotating shaft 32 is rotated to change the angle of the writing board 2. Once adjusted to a suitable position, the connecting plate 33 is rotated, and the pin 34 passes through the strip-shaped groove 331 and is inserted into the insertion hole 311 to fix the angle of the writing board 2.

[0031] Furthermore, to facilitate the rotation of the pivot 32 and control the rotation angle of the writing board 2, and to simplify the connection structure between the pivot 32 and the connecting plate 33, a handle 321 is provided at the end of the pivot 32 away from the writing board 2. The handle 321 is fixedly connected to the pivot 32. The side wall of the end of the handle 321 near the pivot 32 is provided with ear plates 322 spaced apart in the second direction Y. A pin 323 is fixed between the ear plates 322. The connecting plate 33 is rotatably connected to the pin 323. That is, when the handle 321 is rotated to make the writing board 2 rotate to a suitable position, the connecting plate 33 rotates synchronously. The projection of the strip groove 331 on the slider 31 can cover the insertion hole 311. At this time, the pin 34 passes through the strip groove 331 and inserts into the insertion hole 311 to mechanically limit the rotation angle of the writing board 2.

[0032] In this embodiment, to facilitate the design of the telescopic component 4 and simplify the structure, please refer to... Figure 3 , Figure 4 The telescopic assembly 4 includes a cylinder 41, a connecting rod 42, a spring 43, and a locking screw 44. The cylinder 41 and the connecting rod 42 extend in the first direction X and are coaxially arranged. Specifically, the cylinder 41 is located in the slide groove 111, with one end fixedly connected to the slider 31 and the other end facing the connecting rod 42. One end of the connecting rod 42 is fixedly connected to the side wall of the slide groove 111, and the other end is inserted into the cylinder 41. The connecting rod 42 is fitted with a spring 43. One end of the spring 43 abuts against the cylinder 41, and the other end abuts against the side wall of the slide groove 111. The spring 43 has a tendency to push the cylinder 41 to move away from the connecting rod 42. A threaded hole is opened at the end of the cylinder 41 near the connecting rod 42. The threaded section of the locking screw 44 is inserted into the threaded hole, and its end abuts against the side wall of the connecting rod 42. During the adjustment of the height of the writing board 2, the locking screws 44 inside the two telescopic components 4 must first be loosened. Because of the spring 43, the writing board 2 is prevented from sliding down in the first direction X and colliding with the first support rod after the locking screws 44 are loosened, thus improving safety during adjustment and facilitating fine-tuning of the installation height of the writing board 2. Specifically, the height of the writing board 2 is adjusted by changing the depth to which the connecting rod 42 is inserted into the cylinder 41.

[0033] Furthermore, since the sidewall of the connecting rod 42 is curved, the locking screw 44 makes line contact with the connecting rod 42. To increase the contact area between the locking screw 44 and the connecting rod 42 and improve the stability of the writing board 2 after height adjustment, the sidewall of the connecting rod 42 is provided with a positioning plane 421 that abuts against the end face of the threaded section of the locking screw 44. At this time, the end face of the threaded section of the locking screw 44 and the positioning plane 421 make surface contact, increasing the force-bearing area. In this embodiment, to facilitate manual tightening or loosening of the locking screw 44, such as... Figure 4 As shown, the locking screw 44 is a wing screw.

[0034] During the above-mentioned adjustment of the angle and height of the writing board 2, the adjustment component 3 and the telescopic component 4 can be adjusted independently, and the writing board 2 can be adjusted according to actual usage needs.

[0035] Furthermore, when the teaching display rack of this utility model is used for outdoor display of paintings or promotional materials, in order to prevent the paintings or promotional materials on the writing board 2 from getting wet with rainwater, therefore, refer to... Figure 1 , Figure 3 It also includes a transparent cover 5, which is hinged to the top of the writing board 2. When outdoors, the transparent cover 5 rotates to close the writing board 2, providing waterproofing. When the writing board 2 is used for blackboard-based teaching, such as... Figure 3 As shown, the transparent cover 5 is flipped up to abut against the top of the writing board 2 for writing. If the teacher needs to preserve the writing on the writing board 2, the transparent cover 5 can be rotated to close the writing board 2, and the students can be informed that there is no need to clean the writing, which is convenient for subsequent teaching. Specifically, in order to facilitate the hinge of the transparent cover 5, as shown in the figure, the top surface of the writing board 2 is symmetrically provided with connecting seats 21 at both ends in the second direction Y. The side wall of the connecting seat 21 facing away from the connecting seat 21 is provided with a pin 22, and the transparent cover 5 is provided with a pin hole corresponding to the pin 22.

[0036] Furthermore, in this embodiment, for ease of placing teaching aids (such as rulers, pointers, pens, brushes, drawing tools, etc.), please refer to... Figure 1 , Figure 3 It also includes a shelf 6, which is located between two second legs 12 and below the writing board 2. The top of the shelf 6 has a storage slot for placing teaching aids, and the two ends of the shelf 6 in the second direction Y are fixedly connected to the first leg 11 respectively.

[0037] Furthermore, in this embodiment, to facilitate limiting the opening angle between the first leg 11 and the second leg 12, see [reference needed]. Figure 1 , Figure 3 A first stop 112 is provided on the side wall of the first leg 11 near the second leg 12. The first stop 112 is used to limit the opening and closing angle between the first leg 11 and the second leg 12. Furthermore, in this embodiment, the first leg 11 and the second leg 12 can be opened and closed. The second leg 12 can be rotated to be parallel to the first leg 11 for easy storage. In order to facilitate limiting the second leg 12, a second stop 113 is provided on the side wall of the first leg 11 near the second leg 12. The second leg 12 is located between the first stop 112 and the second stop 113.

[0038] Furthermore, to facilitate the positioning of the slider 31 with the slide groove 111 during installation, specifically, please refer to... Figure 4The slider 31 includes a positioning part 312 and a guide part 313. The positioning part 312 is located outside the slide groove 111 and is disposed towards the writing board 2, and is used to limit the slider 31 in the first direction X. The guide part 313 is located inside the slide groove 111 and is used to limit the slider 31 in the second direction Y.

[0039] In summary, the teaching display rack provided by this utility model embodiment has the following advantages compared with the prior art: it includes a support 1, a writing board 2, a shelf 6, two sets of adjustment components 3, and two sets of telescopic components 4; wherein, the support 1 includes two first legs 11 and two second legs 12, the two first legs 11 extend in the first direction X and are spaced apart in the second direction Y; the two second legs 12 extend in the second direction Y and are spaced apart in the second direction Y, one end of one first leg 11 is hinged to one end of one second leg 12, the top of the first leg 11 has a groove 111 extending in the first direction X, the writing board 2 is disposed between the two first legs 11, and the two sets of adjustment components 3 are respectively disposed at both ends of the writing board 2 in the second direction Y, the adjustment components 3 have a first axis, and the adjustment components 3 are disposed in the groove 111 and are connected to the writing board 2. The writing board 2 is fixedly connected, and the adjustment component 3 is movably connected to the first support leg 11. The adjustment component 3 can drive the writing board 2 to rotate around the first axis, and can directly adjust the usage angle of the writing board 2, which is easy to operate. Two sets of telescopic components 4 correspond one-to-one with the adjustment component 3. The telescopic components 4 are located in the slide groove 111. One end of the telescopic component 4 is connected to the adjustment component 3, and the other end is connected to the side wall of the slide groove 111. By adjusting the length of the telescopic component 4 in the first direction X, the height of the adjustment component 3 and the writing board 2 in the vertical direction can be changed, and the usage height of the writing board 2 can be directly adjusted, which is easy to operate. While adjusting the angle and height of the writing board 2, there is no need to adjust the opening and closing angle of the support leg 1, which avoids the change of the center of gravity of the support 1, makes it easy to control the adjustment accuracy, improves safety performance, and enhances the smoothness of teaching and the teacher's user experience.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A teaching display stand having a first direction and a second direction which intersect each other, characterized in that: Includes a stand, writing board, two sets of adjustment components, and two sets of telescopic components; The bracket includes two first legs and two second legs, the two first legs extending in the first direction and spaced apart in the second direction; Two second legs extend in the second direction and are spaced apart in the second direction; one end of one first leg is hinged to one end of one second leg; a groove is provided on the top of the first leg; The writing board is positioned between the two first legs; The two sets of adjustment components are respectively disposed at both ends of the writing board in the second direction. The adjustment component has a first axis, which is parallel to the second direction. The adjustment component is disposed in the slide groove and fixedly connected to the writing board. The adjustment component is movably connected to the first support leg. The adjustment component can drive the writing board to rotate around the first axis. The two sets of telescopic components correspond one-to-one with the adjustment components. The telescopic components are located in the slide groove. One end of the telescopic component is connected to the adjustment component, and the other end is connected to the side wall of the slide groove. The length of the telescopic component changes in the first direction so that the height of the adjustment component and the writing board changes in the vertical direction.

2. The teaching display stand of claim 1, wherein: The adjustment assembly includes a slider, a rotating shaft, a connecting plate, and a pin. The slider is disposed in the groove, the rotating shaft extends in the second direction, and one end passes through the slider and is fixedly connected to the writing board. The rotating shaft has the first axis and is rotatably connected to the slider. The other end of the rotating shaft is movably connected to the connecting plate. The connecting plate has a strip-shaped groove along its length, and the end of the pin passes through the strip-shaped groove and is inserted into the insertion hole on the slider.

3. The teaching display stand of claim 2, wherein: The telescopic assembly includes a cylinder, a connecting rod, a spring, and a locking screw. The cylinder and the connecting rod extend in the first direction. The cylinder is disposed within the slide groove, and one end is fixedly connected to the slider. One end of the connecting rod is fixedly connected to the side wall of the slide groove, and the other end is inserted into the cylinder. The connecting rod is fitted with the spring, one end of which abuts against the cylinder, and the other end abuts against the side wall of the slide groove. The spring has a tendency to push the cylinder away from the connecting rod. A threaded hole is provided at the end of the cylinder near the connecting rod. The threaded section of the locking screw is inserted into the threaded hole, and its end abuts against the side wall of the connecting rod.

4. The teaching display stand of claim 3, wherein: The side wall of the connecting rod is provided with a positioning plane that abuts against the end face of the threaded section of the locking screw.

5. The teaching display stand of claim 2, wherein: The end of the rotating shaft away from the writing board is provided with a handle, and the side wall of the handle near the rotating shaft is provided with ear plates spaced apart in the second direction. A pin is fixed between the ear plates, and the connecting plate is rotatably connected to the pin.

6. The teaching display stand of claim 2, wherein: It also includes a transparent cover plate that is hinged to the top of the writing board.

7. The teaching display stand of claim 2, wherein: The slider includes a positioning part and a guide part. The positioning part is located outside the groove and is disposed towards the writing board, while the guide part is located inside the groove.

8. The teaching display stand of claim 1, wherein: The shelf is arranged between the two second legs and below the writing board, and a top of the shelf is provided with a shelf groove for placing teaching aids.

9. The educational display stand of claim 1, wherein: The first leg is provided with a first stopper near a side wall of the second leg, and the first stopper is used for limiting an opening angle between the first leg and the second leg.

10. The teaching display rack as described in claim 9, characterized in that: The first leg is provided with a second stopper near a side wall of the second leg, and the second leg is located between the first stopper and the second stopper.

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