Anti-toppling display board

Abstract

The utility model discloses an anti-toppling display board, which relates to the technical field of display boards, and comprises a mounting rack, moving trundles and a writing board, the bottom of the mounting rack is provided with the moving trundles, the upper side of the mounting rack is provided with the writing board, and the middle part of the writing board is connected with a stepping motor through a connecting shaft. And one side of the stepping motor is connected with the mounting frame, and a control box is mounted on the side, away from the stepping motor, of the mounting frame. According to the anti-toppling display board, an electric telescopic rod is controlled to be started through a control box, the electric telescopic rod can push a folding arm hinged to a shear fork arm in the forward extending process, the shear fork arm is driven to be opened, at the moment, the shear fork arm drives a supporting pulley at the bottom to be slowly opened to form a supporting frame body, and the contact range of the bottom of a mounting frame and the ground is enlarged; according to the anti-toppling display board, the problem that the bottom of the display board is a tripod, and the display board is shifted after being impacted, so that the display board topples is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of display boards, in particular to an anti-dumping display board. Background Art

[0002] In the teaching of Chinese language and literature, the display board is a commonly used teaching auxiliary tool. It is mainly used to display teaching content intuitively and help students better understand and remember knowledge points. The display board can be used to display fragments of literary works, present grammar rules and examples, and display cultural elements related to Chinese language and literature. It is a very practical teaching auxiliary tool. It can not only help students better understand and remember knowledge points, but also stimulate students' interest and enthusiasm in learning and improve teaching effectiveness.

[0003] The existing display board consists of a mounting frame and a writing board. The mounting frame is used to mount the writing board and provide support for the writing board to prevent the writing board from shaking when in use. However, the bottom of the existing display board is supported by a tripod. If the tripod is accidentally hit, it will shift, causing the display board to fall over. Utility Model Content

[0004] The utility model aims to provide an anti-dumping display board to solve the problem that the bottom of the display board proposed in the background art is a tripod which may be displaced when hit, resulting in the dumping of the display board.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an anti-dumping display board, comprising a mounting frame, movable casters and a writing board,

[0006] A movable caster is installed at the bottom of the mounting frame, a writing board is arranged on the upper side of the mounting frame, the middle part of the writing board is connected to the stepper motor through a connecting shaft, one side of the stepper motor is connected to the mounting frame, and a control box is installed on the side of the mounting frame away from the stepper motor.

[0007] Preferably, an anti-dumping mechanism is provided at the bottom of the mounting frame, and the anti-dumping mechanism consists of a mounting column, a scissor-type cross arm, a folding arm, an electric telescopic rod and a supporting pulley, and the bottom of the mounting frame is rotatably connected to the scissor-type cross arm through the mounting column.

[0008] Preferably, one side of the scissors cross arm is hinged to both ends of the folding arm through a connecting plate and a pin, the middle part of the folding arm is connected to one end of an electric telescopic rod, the other end of the electric telescopic rod is connected to a mounting frame, and a supporting pulley is connected to the bottom of the scissors cross arm.

[0009] Preferably, a support plate is sleeved on the outer side of the mounting frame, the inside of the support plate is plugged into the plug-in frame through a groove, pull rings are symmetrically connected to the upper side of the support plate, winding rollers are provided on both sides of the writing board, and the middle of the winding rollers is connected to the connecting shaft.

[0010] Preferably, a connecting rope is wound around the outside of the winding roller, one end of the connecting rope passes through a guide ring and is connected to a hook, the two guide rings are symmetrically arranged about the writing board, and the side of the guide rings away from each other is connected to the mounting frame.

[0011] Preferably, the inner side of the hook is buckled with the sliding block, sliding grooves are symmetrically provided on both sides of the mounting frame, and the outer side of the sliding block is slidably connected to the sliding grooves.

[0012] Compared with the prior art, the beneficial effect of the utility model is that the anti-tipping display board starts the electric telescopic rod through the control box. During the process of the electric telescopic rod extending forward, it will push the folding arm hinged with the scissor-type cross arm, and drive the scissor-type cross arm to open. At this time, the scissor-type cross arm drives the supporting pulley at the bottom to slowly open to form a supporting frame body, thereby increasing the contact range between the bottom of the mounting frame and the ground, and solving the problem that the bottom of the display board, which is a tripod, will shift when it is hit, causing the display board to tip over.

[0013] 1. The anti-dumping display board, in order to prevent the display board from tipping over after being hit, after the mounting frame is pushed to a suitable location by the mobile casters, the electric telescopic rod is started by the control box control, and the electric telescopic rod will push the folding arm hinged with the scissor cross arm during the forward extension process, driving the scissor cross arm to open, and at this time, the scissor cross arm drives the bottom support pulley to slowly open to form a support frame body, thereby increasing the contact range between the bottom of the mounting frame and the ground. The anti-dumping display board is provided with an anti-dumping mechanism, which can effectively provide support for the mounting frame to prevent it from tipping over, thereby increasing the safety of the mounting frame when in use;

[0014] 2. In order to make full use of the vacant area of ​​the mounting frame, the anti-dumping display board will place some storage buckets for placing objects on the inner side of the mounting frame. However, the placement of the storage buckets will make it inconvenient to clean the mounting frame after long-term use. At this time, the hook that is buckled with the sliding block is removed and buckled with the pull ring on the upper side of the support plate, and the stepper motor for adjusting the writing angle of the writing board is started. At this time, the stepper motor drives the connecting shaft to rotate, thereby driving the winding roller to rotate to reel in the connecting rope, and then pulling the supporting plate and the plug-in frame upward. At this time, the cleaner can thoroughly clean the surface of the mounting frame. The anti-dumping display board is provided with a winding roller and a connecting rope, and the support plate and the plug-in frame can be driven to rise by the stepper motor to facilitate the cleaning of the mounting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the display board of the utility model;

[0016] Figure 2 This is a side view structural diagram of the display board of the utility model;

[0017] Figure 3 This is a schematic diagram of the top view of the anti-dumping mechanism of the utility model;

[0018] Figure 4 It is a schematic diagram of the top view structure of the support plate of the utility model.

[0019] In the figure: 1, mounting frame; 101, movable caster; 2, writing board; 3, connecting shaft 3; 301, stepping motor; 302, control box; 4, anti-dumping mechanism; 401, mounting column; 402, scissor-type cross arm; 403, folding arm; 404, electric telescopic rod; 405, supporting pulley; 5, supporting plate; 501, plug-in frame; 502, pull ring; 6, winding roller; 601, connecting rope; 602, guide ring; 603, hook; 604, sliding block; 605, sliding groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 3 The utility model provides a technical solution: an anti-dumping display board, comprising a mounting frame 1, a movable caster 101 and a writing board 2,

[0022] A movable caster 101 is installed at the bottom of the mounting frame 1, and a writing board 2 is arranged on the upper side of the mounting frame 1. The middle part of the writing board 2 is connected to the stepper motor 301 through a connecting shaft 3. One side of the stepper motor 301 is connected to the mounting frame 1, and a control box 302 is installed on the side of the mounting frame 1 away from the stepper motor 301.

[0023] An anti-dumping mechanism 4 is provided at the bottom of the mounting frame 1, and the anti-dumping mechanism 4 consists of a mounting column 401, a scissor-type cross arm 402, a folding arm 403, an electric telescopic rod 404 and a supporting pulley 405. The bottom of the mounting frame 1 is rotatably connected to the scissor-type cross arm 402 through the mounting column 401, one side of the scissor-type cross arm 402 is hinged to both ends of the folding arm 403 through a connecting piece and a pin, the middle part of the folding arm 403 is connected to one end of the electric telescopic rod 404, and the other end of the electric telescopic rod 404 is connected to the mounting frame 1, and the bottom of the scissor-type cross arm 402 is connected to a supporting pulley 405.

[0024] During specific implementation, in order to prevent the display board from tipping over after being hit, the mounting frame 1 is pushed to a suitable location by the mobile casters 101, and the control box 302 is used to control the start of the electric telescopic rod 404. During the process of the electric telescopic rod 404 extending forward, the folding arm 403 hinged to the scissor cross arm 402 is pushed to drive the scissor cross arm 402 to open. At this time, the scissor cross arm 402 drives the bottom support pulley 405 to slowly open to form a support frame body, thereby increasing the contact range between the bottom of the mounting frame 1 and the ground. When the display board is used, the electric telescopic rod 404 is started to drive the scissor cross arm 402 to reset through the folding arm 403. The anti-tipping display board is provided with an anti-tipping mechanism 4, which can effectively provide support for the mounting frame 1 to prevent it from tipping over, thereby increasing the safety of the mounting frame 1 when in use.

[0025] See also Figure 1 , Figure 2 and Figure 4 It can be seen that a support plate 5 is sleeved on the outer side of the mounting frame 1, and the inside of the support plate 5 is plugged into the plug-in frame 501 through a groove, and a pull ring 502 is symmetrically connected to the upper side of the support plate 5. Winding rollers 6 are provided on both sides of the writing board 2, and the middle part of the winding roller 6 is connected to the connecting shaft 3. A connecting rope 601 is wrapped around the outer side of the winding roller 6, and one end of the connecting rope 601 passes through a guide ring 602 and is connected to a hook 603. The two guide rings 602 are symmetrically arranged about the writing board 2, and the side of the guide ring 602 away from the mounting frame 1 is connected, and the inner side of the hook 603 is buckled with a sliding block 604, and sliding grooves 605 are symmetrically opened on both sides of the mounting frame 1, and the outer side of the sliding block 604 is slidably connected to the sliding grooves 605.

[0026] In the specific implementation, in order to make full use of the vacant area of ​​the mounting frame 1, some storage buckets for placing objects will be placed inside the mounting frame 1. However, after the storage buckets are placed, it will be inconvenient to clean the mounting frame 1 after long-term use. At this time, the hook 603 that is buckled with the sliding block 604 is removed and buckled with the pull ring 502 on the upper side of the support plate 5, and the stepper motor 301 for adjusting the writing angle of the writing board 2 is started. At this time, the stepper motor 301 drives the connecting shaft 3 to rotate, thereby driving the winding roller 6 to rotate to reel in the connecting rope 601, and then pulls the support plate 5 and the plug-in frame 501 upwards. At this time, the cleaner can thoroughly clean the surface of the mounting frame 1;

[0027] To facilitate centralized cleaning, the bottom of the plug-in frame 501 is bottomless. When in use, the plug-in frame 501 and the storage table of the mounting frame 1 form a complete storage frame. At this time, all the garbage generated can be concentrated on the surface of the mounting frame 1. There is no need to clean the plug-in frame 501 one by one during cleaning. The sliding block 604 and the sliding groove 605 are used to temporarily limit the hook 603, and the guide ring 602 is used to guide the winding direction of the connecting rope 601. The anti-dumping display board is provided with a winding roller 6 and a connecting rope 601, which can drive the support plate 5 and the plug-in frame 501 to rise by the stepping motor 301, thereby facilitating the cleaning of the mounting frame 1.

[0028] To summarize, when the anti-dumping display board is used, the casters 101 are moved to a suitable location and braked, and the control box 302 is used to control the start of the electric telescopic rod 404. During the forward extension of the electric telescopic rod 404, the folding arm 403 hinged to the scissor-type arm 402 is pushed to open the scissor-type arm 402 to form a support frame. The writer starts the stepper motor 301 as needed to drive the connecting shaft 3 to rotate and thereby drive the writing board 2 to rotate. The writing board 2 can be used after being adjusted to a suitable viewing angle. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-dumping display board, comprising a mounting frame (1), movable casters (101) and a writing board (2), characterized in that: A movable caster (101) is installed at the bottom of the mounting frame (1), a writing board (2) is arranged on the upper side of the mounting frame (1), the middle part of the writing board (2) is connected to a stepping motor (301) via a connecting shaft (3), one side of the stepping motor (301) is connected to the mounting frame (1), and a control box (302) is installed on the side of the mounting frame (1) away from the stepping motor (301).

2. The anti-dumping display board according to claim 1, characterized in that: The bottom of the mounting frame (1) is provided with an anti-dumping mechanism (4), the anti-dumping mechanism (4) is composed of a mounting column (401), a scissor-type cross arm (402), a folding arm (403), an electric telescopic rod (404) and a supporting pulley (405), and the bottom of the mounting frame (1) is rotatably connected to the scissor-type cross arm (402) via the mounting column (401).

3. The anti-dumping display board according to claim 2, characterized in that: One side of the scissor-type cross arm (402) is hinged to the two ends of the folding arm (403) through a connecting plate and a pin shaft, the middle of the folding arm (403) is connected to one end of an electric telescopic rod (404), the other end of the electric telescopic rod (404) is connected to the mounting frame (1), and the bottom of the scissor-type cross arm (402) is connected to a supporting pulley (405).

4. The anti-dumping display board according to claim 3, characterized in that: A support plate (5) is sleeved on the outside of the mounting frame (1), and the inside of the support plate (5) is plugged into the plug-in frame (501) through a slot. A pull ring (502) is symmetrically connected to the upper side of the support plate (5). Winding rollers (6) are provided on both sides of the writing board (2), and the middle of the winding rollers (6) is connected to the connecting shaft (3).

5. The anti-dumping display board according to claim 4, characterized in that: A connecting rope (601) is wound around the outside of the reeling roller (6), one end of the connecting rope (601) passes through a guide ring (602) and is connected to a hook (603), the two guide rings (602) are symmetrically arranged with respect to the writing board (2), and the side of the guide rings (602) away from each other is connected to the mounting frame (1).

6. The anti-dumping display board according to claim 5, characterized in that: The inner side of the hook (603) is buckled with the sliding block (604), and sliding grooves (605) are symmetrically provided on both sides of the mounting frame (1), and the outer side of the sliding block (604) is slidably connected with the sliding grooves (605).

Images