Foldable teaching demonstration frame

Abstract

The utility model relates to the technical field of teaching demonstration frames, and discloses a foldable teaching demonstration frame, which comprises a main body assembly and a base, a platform is arranged above the base, the base is rotatably connected with a first rotating plate, the first rotating plate is rotatably connected with a second rotating plate, and a baffle is fixed on the second rotating plate. The supporting assembly is located on the base and comprises a supporting plate located on one side of the base. The foldable demonstration frame has the advantages that the foldable supporting structures are additionally arranged on the two sides of the foldable demonstration frame, after the demonstration frame is placed, the supporting structures are opened and locked, supporting points of the whole demonstration frame are distributed more reasonably, and only a supporting part close to one side is not needed any more; the supporting structure can be unlocked through one key by pulling the pull rope, so that the supporting structure can be naturally folded along with the folding of the demonstration frame, and the folding function of the demonstration frame is not affected while the stability of the folding demonstration frame is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to teaching demonstration stand technical field, especially a foldable teaching demonstration stand. BACKGROUND

[0002] In the teaching activity, teaching demonstration stand is a kind of commonly used auxiliary tool, and there are various types of teaching demonstration stands on the market at present, wherein foldable teaching demonstration stand is favored by the majority of teachers and educational institutions due to its characteristics of being convenient to store and carry.Foldable demonstration stand usually adopts relatively simple structure design when realizing folding function, and the supporting part is close to one side of the whole demonstration stand, which leads to gravity deviation, and further makes the stability of unfolded demonstration stand reduce, due to insufficient stability, demonstration stand is prone to shaking or even toppling, which not only affects the normal teaching, but also can cause the damage of display articles, and brings unnecessary trouble to teaching. UTILITY MODEL CONTENT

[0003] In view of the above and / or existing problems in foldable teaching demonstration stand, the utility model is proposed.

[0004] Therefore, the problem to be solved by the utility model is that the gravity of foldable demonstration stand deviates after unfolding, which leads to insufficient stability.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a foldable teaching demonstration stand, which comprises a main body assembly, a platform is arranged above a base, a first rotating plate is rotatably connected to the base, a second rotating plate is rotatably connected to the first rotating plate, and a baffle is fixed to the second rotating plate.

[0006] A supporting assembly is located on the base and comprises a supporting plate located on one side of the base, an auxiliary block is arranged on one side of the supporting plate, the other end of the auxiliary block is fixed to the base, the supporting plate is divided into a first supporting block, a second supporting block, a third supporting block and a fourth supporting block, the four supporting plates are rotatably connected in sequence, the two ends of the first supporting block are rotatably connected to the platform and the second supporting block respectively, one end of the fourth supporting block is rotatably connected to the third supporting block, and the other end is rotatably connected to the auxiliary block.

[0007] As a preferred scheme of the foldable teaching demonstration stand of the utility model, the supporting plate is provided with a moving groove, the supporting assembly further comprises a locking member located in the supporting plate, and the locking member comprises a locking block sliding in the moving groove, one side of the locking block is fixed with a spring, and the other end of the spring is fixed to the inner wall of the moving groove.

[0008] As a preferred scheme of the foldable teaching demonstration frame, the support plate is further provided with a locking groove, and the locking block is capable of being clamped with the locking groove.

[0009] As a preferred scheme of the foldable teaching demonstration frame, the number of the locking blocks is five, and the number of the locking grooves is three.

[0010] As a preferred scheme of the foldable teaching demonstration frame, the platform is provided with a clamping groove, the shape of the clamping groove is corresponding to the locking block, and the clamping groove is capable of being clamped with the locking block.

[0011] As a preferred scheme of the foldable teaching demonstration frame, the number of the clamping grooves is two, one of which is located in the platform, and the other is located in the auxiliary block.

[0012] As a preferred scheme of the foldable teaching demonstration frame, the support plate is provided with a through groove, and the through groove is provided with a total rope.

[0013] As a preferred scheme of the foldable teaching demonstration frame, the locking block is fixed with a pull rope on one side, the number of the pull ropes is consistent with and corresponding to the number of the locking blocks, and the other end of the pull rope is fixed on the total rope.

[0014] As a preferred scheme of the foldable teaching demonstration frame, the pull rope is fixed with a pull plate on one end.

[0015] As a preferred scheme of the foldable teaching demonstration frame, the base is fixed with a first sliding block, the platform is fixed with a second sliding block, and the number of the first sliding blocks and the number of the second sliding blocks are both two.

[0016] The foldable teaching demonstration frame has the following beneficial effects: the foldable support structure is additionally arranged on both sides of the folding demonstration frame, the support structure is opened and locked after the demonstration frame is placed, the support points of the whole demonstration frame are more reasonably distributed, and the folding demonstration frame no longer only relies on the support part near one side; when the demonstration frame needs to be folded, the pull rope is pulled to one-key unlock the support structure, so that the support structure can be naturally folded with the folding of the demonstration frame, thereby enhancing the stability of the folding demonstration frame without affecting the folding function. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and the present application is not limited to the specific embodiments disclosed below.

[0018] Figure 1 It is a whole structure diagram of the foldable teaching demonstration frame.

[0019] Figure 2 It is a partial enlarged structure diagram of the foldable teaching demonstration frame. Figure 1

[0020] Figure 3 It is a partial enlarged structure diagram of the foldable teaching demonstration frame. Figure 1

[0021] Figure 4 It is another perspective structure diagram of the foldable teaching demonstration frame.

[0022] Figure 5 It is a partial enlarged structure diagram of the foldable teaching demonstration frame. Figure 4

[0023] Figure 6 It is a sectional structure diagram of the first supporting block of the foldable teaching demonstration frame.

[0024] Figure 7 It is a partial enlarged structure diagram of the foldable teaching demonstration frame. Figure 6

[0025] Figure 8 It is a partial enlarged structure diagram of the foldable teaching demonstration frame. Figure 6

[0026] Figure 9 It is a sectional structure diagram of the locking block of the foldable teaching demonstration frame. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0028] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0029] ​​​​​Secondly, the "one embodiment" or "embodiment" referred to herein is intended to mean a specific feature, structure, characteristic, or combination of features and characteristics described herein that is included in at least one implementation of the present application. The various appearances of "in one embodiment" or "in an embodiment" in the specification are not necessarily all referring to the same embodiment.

[0030] Embodiment 1

[0031] With reference to Figures 1-9 For the first embodiment of the present application, the embodiment provides a foldable teaching demonstration stand, the foldable teaching demonstration stand comprises a main body assembly 100, comprising a base 101, the base 101 provides support for the entire demonstration stand, a platform 102 is arranged above the base 101, and teaching aids can be placed on the platform 102.

[0032] The base 101 is rotatably connected with a first rotating plate 103, the first rotating plate 103 is rotatably connected with a second rotating plate 104, the number of the first rotating plate 103 and the second rotating plate 104 is six, and they are symmetrically distributed on both sides of the base 101, wherein the uppermost one of the six groups is rotatably connected with the platform 102, the lowermost one of the six groups is rotatably connected with the base 101, the first rotating plate 103 in the middle group is rotatably connected with the second rotating plate 104 at both ends, and the second rotating plate 104 in the middle group is rotatably connected with the first rotating plate 103 at both ends.

[0033] Through the cooperation of the multiple groups of first rotating plates 103 and second rotating plates 104, when the distance between the first rotating plate 103 and the second rotating plate 104 in the lowermost group changes, the distance between the platform 102 and the base 101 can be changed, so that the folding of the demonstration stand is realized.

[0034] The second rotating plate 104 on both sides is fixedly provided with a baffle 105, and the baffle 105 is fixedly provided with a horizontal rod 108 at the bottom. The baffle 105 is used to enhance the support, and teaching aids such as teaching materials can also be placed on the horizontal rod 108, and the bottom horizontal rod 108 is connected with the base 101 through a hinge.

[0035] The support assembly 200 is located on the base 101 and comprises a support plate 201 located on one side of the base 101, the number of the support plate 201 is multiple, and the support plate 201 is provided with an auxiliary block 202 on one side, the other end of the auxiliary block 202 is fixed with the base 101, and the number of the auxiliary block 202 is two, which are symmetrically fixed on both sides of the base 101.

[0036] The support plate 201 is divided into a first support block 201a, a second support block 201b, a third support block 201c and a fourth support block 201d, and the four support plates 201 are sequentially rotationally connected, the first support block 201a is rotationally connected with the platform 102 and the second support block 201b at both ends, the fourth support block 201d is rotationally connected with the third support block 201c at one end and rotationally connected with the auxiliary block 202 at the other end, through the arrangement of the rotational connection, the plurality of support plates 201 can be folded, when the angle between each support plate 201 is fixed, the overall length of the support plate 201 cannot be changed, at this time, the distance between the base 101 and the platform 102 can be ensured to be constant, and in cooperation with a plurality of first rotating plates 103 and second rotating plates 104, the demonstration stand as a whole is provided with stable support.

[0037] Embodiment 2

[0038] With reference to Figures 1-9 For the second embodiment of the utility model, the embodiment is based on the previous embodiment.

[0039] Specifically, the support plate 201 is provided with a moving groove 201-1, and the support assembly 200 further comprises a locking piece 203 located in the support plate 201, the locking piece 203 is arranged to be used when the demonstration stand is unfolded, and the plurality of support plates 201 are opened, when the demonstration stand is placed, the distance between the base 101 and the platform 102 is fixed, the rotational angle between the plurality of support plates 201 is locked, so that the distance between the base 101 and the platform 102 is maintained, and additional stable support is provided for the demonstration stand, and the stability of the demonstration stand is improved.

[0040] The locking piece 203 comprises a locking block 203a sliding in the moving groove 201-1, one side of the locking block 203a is fixed with a spring 203b, the other end of the spring 203b is fixed on the inner wall of the moving groove 201-1, and the spring 203b is used to continuously push the locking block 203a and connect the locking block 203a and the support plate 201.

[0041] Specifically, the support plate 201 is further provided with a locking groove 201-2, and the locking block 203a can be clamped with the locking groove 201-2.

[0042] Take the first support block 201a and the second support block 201b as an example, the two are rotationally connected, the first support block 201a has a moving slot 201-1 at one end, and the part of the second support block 201b connected with the first support block 201a is provided with a locking slot 201-2, when the locking block 203a located in the moving slot 201-1 is engaged with the locking slot 201-2, the first support block 201a and the second support block 201b cannot rotate relative to each other any more, thereby the total length of the two is unchanged, the same structure is provided between the second support block 201b and the third support block 201c, and between the third support block 201c and the fourth support block 201d.

[0043] When the demonstration stand is in the folded state, the distance between the base 101 and the platform 102 is the shortest, the locking block 203a is not engaged with the locking slot 201-2, and the support plates 201 can rotate relative to each other.

[0044] Specifically, the number of locking blocks 203a is five, and the number of locking slots 201-2 is three.

[0045] Among the three locking blocks 203a, one is located near the position where the first support block 201a, the second support block 201b, the third support block 201c and the fourth support block 201d are rotationally connected, and the other one is located at the position where the first support block 201a is rotationally connected with the platform 102. Another one is located at the position where the fourth support block 201d is rotationally connected with the auxiliary block 202, and the locking slot 201-2 is located near the position where the first support block 201a, the second support block 201b, the third support block 201c and the fourth support block 201d are rotationally connected.

[0046] Specifically, the platform 102 is provided with a clamping slot 102-1, the shape of the clamping slot 102-1 corresponds to the locking block 203a, and the clamping slot 102-1 can be engaged with the locking block 203a.

[0047] Since the platform 102 can be rotationally connected with the first support block 201a, a clamping slot 102-1 is arranged near the rotationally connected part of the two, during the process of unfolding the demonstration stand, the first support block 201a and the platform 102 will rotate relative to each other synchronously, when the demonstration stand is completely unfolded, the locking block 203a rotates to the coaxial position with the clamping slot 102-1 following the first support block 201a, under the pushing of the spring 203b, the locking block 203a will be engaged with the clamping slot 102-1, thereby limiting the relative rotation between the platform 102 and the first support block 201a.

[0048] Specifically, the number of clamping slots 102-1 is two, one of which is located in the platform 102, and the other is located in the auxiliary block 202.

[0049] The clamping groove 102-1 on the auxiliary block 202 is located near the position where the auxiliary block 202 is rotationally connected with the fourth support block 201d, and as the demonstration stand is unfolded, the auxiliary block 202 and the fourth support block 201d will rotate relatively, and when the demonstration stand is fully unfolded, the locking block 203a in the fourth support block 201d and the clamping groove 102-1 on the auxiliary block 202 are located in coaxial positions, and the two are clamped, and then the relative position of the auxiliary block 202 and the fourth support block 201d is locked.

[0050] Embodiment 3

[0051] With reference to Figures 1-9 For the third embodiment of the utility model, the embodiment is based on the previous two embodiments.

[0052] Specifically, the support plate 201 is provided with a through groove 201-3, and the through groove 201-3 is provided with a total rope 203c.

[0053] The first support block 201a, the second support block 201b, the third support block 201c and the fourth support block 201d are all provided with a through groove 201-3, and the total rope 203c is arranged to connect the five locking blocks 203a, so that all the locking blocks 203a can be unlocked synchronously.

[0054] Specifically, the locking block 203a is fixed with a pull rope 203d on one side, the number of the pull rope 203d is consistent with and corresponds to the number of the locking block 203a, the other end of the pull rope 203d is fixed on the total rope 203c, the pull rope 203d is used for unlocking the locking block 203a, one end of the total rope 203c is connected with the pull rope 203d corresponding to the locking block 203a on the fourth support block 201d, and the total rope 203c passes through the inside of the first support block 201a, the second support block 201b, the third support block 201c and the fourth support block 201d.

[0055] When the demonstration stand needs to be folded, the total rope 203c is pulled, so that each pull rope 203d moves, under the pulling of the pull rope 203d, the spring 203b is compressed, so that the locking block 203a is separated from the locking groove 201-2 and the clamping groove 102-1, and then the part rotationally connected between the platform 102, the support plate 201 and the base 101 is unlocked, and can be rotated again, without affecting the folding of the demonstration stand.

[0056] Specifically, the pull rope 203d is fixed with a pull plate 203e on one end.

[0057] The pull plate 203e is used to drive the pull rope 203d to move, and prevent the pull rope 203d from moving completely into the through groove 201-3.

[0058] Specifically, the first slide 106 is fixed on the base 101, and the second slide 107 is fixed on the platform 102, and the number of the first slide 106 and the second slide 107 is two.

[0059] The first slide 106 is fixed on the base 101, and the second slide 107 is fixed on the platform 102, and the number of the first slide 106 and the second slide 107 is two.

[0060] In use, when the demonstration stand is unfolded, the first support block 201a and the platform 102 will be synchronously relatively rotated, and the first support block 201a, the second support block 201b, the third support block 201c and the fourth support block 201d will also be relatively rotated, and the fourth support block 201d and the auxiliary block 202 are relatively rotated, and in the rotating process, when the relative positions of the locking block 203a, the locking slot 201-2 and the clamping slot 102-1 are also changed, when the demonstration stand is completely unfolded, the locking block 203a, the locking slot 201-2 and the clamping slot 102-1 will be moved to the coaxial position, at this time, part of the locking block 203a is clamped with the locking slot 201-2, and the other part of the locking block 203a is clamped with the clamping slot 102-1, thereby limiting the rotating angle between the platform 102, the first support block 201a, the second support block 201b, the third support block 201c, the fourth support block 201d and the base 101, thereby assisting the support of the platform 102 and the base 101, and enhancing the stability of the demonstration stand as a whole.

[0061] When the demonstration stand needs to be folded, the total rope 203c is pulled upward, so that each pull rope 203d is moved, and under the pulling of the pull rope 203d, the spring 203b is compressed, so that the locking block 203a is separated from the locking slot 201-2 and the clamping slot 102-1, and then the part of the rotating connection between the platform 102, the support plate 201 and the base 101 is unlocked, and can be rotated again, without affecting the folding of the demonstration stand, and then the operation of folding the demonstration stand can be performed.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A foldable teaching demonstration stand, characterized in that: The utility model relates to a kind of multi-angle adjustable platform, including, Main body assembly (100), including base (101), platform (102) is provided above the base (101), the first rotating plate (103) is rotatably connected with the base (101), the second rotating plate (104) is rotatably connected with the first rotating plate (103), the baffle (105) is fixed on the second rotating plate (104); Supporting assembly (200) is located on the base (101), including the supporting plate (201) on the one side of the base (101), the auxiliary block (202) is provided on the one side of the supporting plate (201), the other end of the auxiliary block (202) is fixed with the base (101), the supporting plate (201) is divided into first supporting block (201a), second supporting block (201b), third supporting block (201c) and fourth supporting block (201d), four the supporting plate (201) is rotatably connected in turn, the first supporting block (201a) both ends are rotatably connected with the platform (102) and the second supporting block (201b), the fourth supporting block (201d) one end is rotatably connected with third supporting block (201c), the other end is rotatably connected with the auxiliary block (202).

2. The foldable teaching demonstration stand of claim 1, wherein: The supporting plate (201) is provided with a moving slot (201-1), and the supporting assembly (200) further comprises a locking member (203) located in the supporting plate (201), comprising a locking block (203a) sliding in the moving slot (201-1), the locking block (203a) is fixed with a spring (203b) on one side, and the other end of the spring (203b) is fixed on the inner wall of the moving slot (201-1).

3. The foldable teaching demonstration stand of claim 2, wherein: The supporting plate (201) is further provided with a locking slot (201-2), and the locking block (203a) can be engaged with the locking slot (201-2).

4. The foldable teaching demonstration stand of claim 3, wherein: The number of the locking block (203a) is five, and the number of the locking slot (201-2) is three.

5. The foldable teaching demonstration stand of claim 3 or 4, wherein: The platform (102) is provided with a clamping groove (102-1), and the shape of the clamping groove (102-1) corresponds to the locking block (203a), and the clamping groove (102-1) can be engaged with the locking block (203a).

6. The foldable teaching demonstration stand of claim 5, wherein: The number of the clamping groove (102-1) is two, one of which is located in the platform (102), and the other is located in the auxiliary block (202).

7. The foldable teaching demonstration stand of claim 6, wherein: The supporting plate (201) is provided with a through groove (201-3), and the through groove (201-3) is provided with a total rope (203c).

8. The foldable teaching demonstration stand of claim 7, wherein: The locking block (203a) is fixed with a pull rope (203d) on one side, the number of the pull rope (203d) corresponds to the locking block (203a), and the other end of the pull rope (203d) is fixed on the total rope (203c).

9. The foldable teaching demonstration stand of claim 8, wherein: The pull rope (203d) is fixed with a pull plate (203e) on one end.

10. The foldable teaching demonstration stand of claim 8 or 9, wherein: The base (101) is fixed with a first sliding block (106), and the platform (102) is fixed with a second sliding block (107), and the number of the first sliding block (106) and the second sliding block (107) is two.

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