Demonstration board for engineering management

Abstract

The utility model provides a demonstration board for engineering management, which relates to the technical field of engineering construction and comprises a supporting bottom plate, supporting legs are fixedly mounted at the two ends of the top of the supporting bottom plate, first through grooves are formed in the bottoms of the two supporting legs in a penetrating manner, and second through grooves are formed in the two sides of the two ends of the surface of the supporting bottom plate in a penetrating manner. Moving assemblies are arranged in inner cavities of the two first through grooves, an L-shaped supporting plate is fixedly connected to the tops of the two supporting legs, first limiting blocks are fixedly mounted at the bottom of the inner side of the L-shaped supporting plate, an unfolding assembly is arranged at the center of the surface of the L-shaped supporting plate, and four limiting supporting assemblies are arranged on the two sides of the surface of the L-shaped supporting plate; one side of the L-shaped supporting plate is fixedly connected with a first demonstration plate. According to the utility model, the stability of the device is adjusted through the moving assembly, the demonstration boards are expanded through the unfolding assembly, and the two demonstration boards II are supported through the supporting assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction, in particular to a demonstration board for engineering management. Background Art

[0002] In engineering management, it is often necessary to explain projects to employees and customers. Using a demonstration board during the explanation process can improve the efficiency of the explanation and enable employees and customers to better understand. Therefore, a good demonstration board can achieve twice the result with half the effort. The demonstration board is usually a whiteboard, which is a writing surface made of white metal plate material. It functions like a blackboard and can be erased repeatedly. It is suitable for teaching and conference discussions. Demonstration whiteboards are popular with the public due to their portability.

[0003] However, in the prior art, most demonstration boards for engineering management are equipped with wheels at the bottom for easy movement. Since the wheels have a small contact area with the ground and poor stability, the demonstration boards will shake when used by users. Secondly, most existing demonstration boards are too simple in structure and have limited display areas. When the demonstration board is full of information, part of the information needs to be erased to make room for further information display. This will result in the inability to effectively call previous information during the display process, resulting in poor information display effect. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a demonstration board for engineering management, comprising: a supporting base plate, support legs are fixedly installed at both ends of the top of the supporting base plate, a through groove 1 is penetrated at the bottom of the two supporting legs, through grooves 2 are penetrated on both sides of the two ends of the surface of the supporting base plate, limiting rods are fixedly installed on both sides of the inner cavity of the two through grooves 1, and the inner cavities of the two through grooves 1 are provided with moving components, the tops of the two supporting legs are fixedly connected with L-shaped supporting plates, a limiting block 1 is fixedly installed at the bottom of the inner side of the L-shaped supporting plate, an expansion component is provided at the center of the surface of the L-shaped supporting plate, four limiting support components are provided on both sides of the surface of the L-shaped supporting plate, and a demonstration board 1 is fixedly connected to one side of the L-shaped support plate.

[0006] As a preferred embodiment, the moving component includes a forward and reverse motor 1, the top of which is fixedly connected to the top of an inner cavity of a through slot, the output end of which is fixedly connected to a threaded rod, the bottom of which is embedded in the bottom of an inner cavity of a through slot through a bearing, a connecting plate is threadedly sleeved on the surface of the threaded rod, grooves are provided on both sides of the center of the surface of the connecting plate, extension blocks are fixedly connected to both ends of the bottom of the connecting plate, and casters are connected to the bottoms of the two extension blocks.

[0007] As a preferred embodiment, the unfolding component includes two forward and reverse motors, and the two forward and reverse motors are fixedly connected to one side surface of the L-shaped support plate. The output end of the two forward and reverse motors passes through the surface of the L-shaped support plate and is connected to a connecting shaft. One end of the connecting shaft is fixedly connected to a gear, and both sides of the gear surface are meshed with tooth plates. Demonstration boards two are fixedly installed on the side surfaces of one end of the two tooth plates, and through grooves three are opened at the bottom of the two demonstration boards two, and the two through grooves three are movably sleeved on the surface of the limit block one.

[0008] As a preferred embodiment, the limit support assembly includes an outer sleeve, both side surfaces of the outer sleeve are provided with grooves 2, the inner cavity of the outer sleeve is movably embedded with L-shaped inner pillars, one end of both side surfaces of the L-shaped inner pillars are fixedly connected to limit blocks 2, and the two limit blocks 2 are movably embedded in the two grooves 2 respectively.

[0009] As a preferred embodiment, one side of the four outer sleeves are respectively fixedly connected to the four ends of the L-shaped support plate, the four L-shaped inner pillars are evenly divided into two groups, one end of the two groups of L-shaped inner pillars are respectively fixedly installed on both sides of one end of the two demonstration boards II, and the surfaces of one side of the two demonstration boards II are movably fitted with the surface of one side of the demonstration board I.

[0010] As a preferred embodiment, the four grooves 1 are movably sleeved on the surfaces of the four limiting rods, and the four extension blocks and the four casters are correspondingly movable inside the four through grooves 2.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. The utility model, when the device needs to be used, the device is pushed to the required position through four casters, the forward and reverse motor 2 and the two forward and reverse motors 1 are connected to the external power supply and the external controller, and the external power supply is connected to the power supply of the electrical equipment in the device through the line, and then the two forward and reverse motors 1 are started through the external controller, and the rotation of the two forward and reverse motors 1 drives the threaded rods connected thereto to rotate, and the rotation of the two threaded rods drives the connecting plates sleeved on the surface thereof to move upward, and the two connecting plates move up and drive the two extension blocks and the casters connected at the bottom thereof to move upward, and at the same time, four limit rods are respectively embedded with four grooves 1 to ensure that the two connecting plates will not deviate when moving up, until the bottom of the caster is higher than the bottom end of the supporting base plate, so that the supporting base plate replaces the caster support device, and if the position needs to be changed, the forward and reverse motor 1 can be reversed by the external controller to make the four casters replace the supporting base plate to contact the ground again, and this method solves the problem that most demonstration boards equipped with wheels will shake when used by users due to the small contact area between the wheels and the ground and the poor stability.

[0013] 2. According to the utility model, after the device is fixed, when the user needs to write, the forward and reverse motor 2 is started through the external controller, and the forward and reverse motor 2 rotates to drive the connecting shaft and the gear to rotate. The rotation of the gear drives the two tooth plates meshing with the surface to move in opposite directions, and the movement of the two tooth plates drives the two demonstration boards 2 connected thereto to move in opposite directions. When the two demonstration boards 2 move, the two L-shaped inner pillars on the surface are stretched outward, and the two limit blocks 2 are limited by the two grooves 2, so that the two demonstration boards 2 will not be separated from the limit blocks 1, and the two tooth plates will not be separated from the gears. At the same time, when the user writes, the four outer sleeves are embedded in the four L-shaped inner pillars to support the two demonstration boards 2 without shaking. When the demonstration is completed, the forward and reverse motor 2 is reversed by the external controller to retract the two demonstration boards 2 on both sides to complete the storage. In this way, when the demonstration board is full of information, there is no need to erase part of the information, and further information can be displayed directly at the side position, which solves the problem that most of the existing demonstration boards have a simple structure and a limited display area, and it is convenient to effectively realize the call of previous information during the display process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional structural schematic diagram of a demonstration board for engineering management provided by the utility model;

[0015] Figure 2 A three-dimensional structural expansion diagram of a demonstration board for engineering management provided by the utility model;

[0016] Figure 3 A rear structural section view of a demonstration board for engineering management provided by the utility model;

[0017] Figure 4 A three-dimensional rear view of a demonstration board for engineering management provided by the utility model;

[0018] Figure 5 A three-dimensional structural disassembly diagram of a demonstration board for engineering management provided by the utility model;

[0019] Figure 6 A disassembled diagram of the supporting legs of a demonstration board for engineering management provided by the utility model;

[0020] Figure 7 A disassembled diagram of the mobile components of a demonstration board for engineering management provided by the utility model;

[0021] Figure 8 This is a disassembled diagram of a limit support component of a demonstration board for engineering management provided by the utility model.

[0022] Legend:

[0023] 1. Support base plate; 101. Support leg; 102. Through slot one; 103. Through slot two; 104. Limit rod; 2. Moving assembly; 201. Forward and reverse motor one; 202. Threaded rod; 203. Connecting plate; 204. Groove one; 205. Extension block; 206. Caster; 3. L-shaped support plate; 301. Limit block one; 302. Demonstration board one; 4. Expanding assembly; 401. Forward and reverse motor two; 402. Connecting shaft; 403. Gear; 404. Tooth plate; 405. Demonstration board two; 406. Through slot three; 5. Limit support assembly; 501. Outer sleeve; 502. Groove two; 503. L-shaped inner support; 504. Limit block two. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-8 The utility model provides a technical solution: a demonstration board for engineering management, comprising: a supporting base plate 1, supporting legs 101 are fixedly installed at both ends of the top of the supporting base plate 1, through grooves 102 are penetrated at the bottoms of the two supporting legs 101, through grooves 103 are penetrated on both sides of the two ends of the surface of the supporting base plate 1, limiting rods 104 are fixedly installed on both sides of the inner cavities of the two through grooves 102, and the inner cavities of the two through grooves 102 are provided with moving components 2, L-shaped supporting plates 3 are fixedly connected to the tops of the two supporting legs 101, limiting blocks 301 are fixedly installed on the bottom of the inner side of the L-shaped supporting plate 3, an expansion component 4 is provided at the center of the surface of the L-shaped supporting plate 3, four limiting support components 5 are provided on both sides of the surface of the L-shaped supporting plate 3, and a demonstration board 302 is fixedly connected to one side of the L-shaped supporting plate 3.

[0026] Specifically: the L-shaped support plate 3 is supported by the support legs 101, the unfolding assembly 4 and the limiting support assembly 5 are fixed by the L-shaped support plate 3, the moving assembly 2 is accommodated by the through slot 102 and the through slot 2 103, the support base plate 1 is used to replace the moving assembly 2 to bear the weight, the stability of the device is adjusted by the moving assembly 2, the demonstration board is expanded by the unfolding assembly 4, and the two demonstration boards 405 are supported by the support assembly 5.

[0027] In one embodiment, the moving component 2 includes a forward and reverse motor 201, the top of the forward and reverse motor 201 is fixedly connected to the top of the inner cavity of the through slot 102, the output end of the forward and reverse motor 201 is fixedly connected to a threaded rod 202, the bottom of the threaded rod 202 is embedded in the bottom of the inner cavity of the through slot 102 through a bearing, a connecting plate 203 is threadedly sleeved on the surface of the threaded rod 202, grooves 204 are provided on both sides of the center of the surface of the connecting plate 203, extension blocks 205 are fixedly connected to both ends of the bottom of the connecting plate 203, and casters 206 are connected to the bottoms of the two extension blocks 205.

[0028] Specifically: by starting the two forward and reverse motors 201, the rotation of the two forward and reverse motors 201 drives the threaded rods 202 connected thereto to rotate, and the rotation of the two threaded rods 202 drives the connecting plates 203 mounted on their surfaces to move upward, and the upward movement of the two connecting plates 203 drives the two extension blocks 205 and the casters 206 connected at the bottom thereof to move upward, and at the same time, four limit rods 104 are respectively embedded with four grooves 204 to ensure that the two connecting plates 203 will not deviate when moving upward, until the bottom of the caster 206 is higher than the bottom end of the supporting base plate 1, so that the supporting base plate 1 replaces the caster 206 support device.

[0029] In one embodiment, the unfolding component 4 includes a forward and reverse motor 2 401, which is fixedly connected to one side surface of the L-shaped support plate 3, and the output end of the forward and reverse motor 2 401 passes through the surface of the L-shaped support plate 3 and is connected to a connecting shaft 402, one end of the connecting shaft 402 is fixedly connected to a gear 403, both sides of the surface of the gear 403 are meshed with tooth plates 404, and demonstration boards 2 405 are fixedly installed on the side surfaces of one end of the two tooth plates 404, and through grooves 3 406 are provided at the bottom of the two demonstration boards 2 405, and the two through grooves 3 406 are movably mounted on the surface of the limit block 1 301.

[0030] Specifically: by starting the forward and reverse motor 2 401, the rotation of the forward and reverse motor 2 401 drives the connecting shaft 402 and the gear 403 to rotate, and the rotation of the gear 403 drives the two tooth plates 404 meshing with its surface to move in opposite directions, and the movement of the two tooth plates 404 drives the two demonstration boards 2 405 connected thereto to move in opposite directions as well, and the two through slots 3 406 are movably sleeved on the surface of the limit block 1 301, thereby limiting the position of the two demonstration boards 2 405.

[0031] In one embodiment, the limit support assembly 5 includes an outer sleeve 501, and grooves 502 are provided on both side surfaces of the outer sleeve 501. An L-shaped inner pillar 503 is movably embedded in the inner cavity of the outer sleeve 501. One end of the two side surfaces of the L-shaped inner pillar 503 is fixedly connected to a limit block 504, and the two limit blocks 504 are movably embedded in the two grooves 502 respectively.

[0032] Specifically: when the two demonstration boards 2 405 move, the two L-shaped inner pillars 503 on the surface thereof are driven to stretch outward, and the two limit blocks 2 504 are limited by the two grooves 2 502, so that the two demonstration boards 2 405 will not separate from the limit blocks 1 301, and the two tooth plates 404 will not separate from the gears 403. At the same time, when the user is writing, the four outer sleeves 501 embedded in the four L-shaped inner pillars 503 can support the two demonstration boards 2 405 and prevent them from shaking.

[0033] In one embodiment, one side of the four outer sleeves 501 are respectively fixedly connected to the four ends of the L-shaped support plate 3, and the four L-shaped inner pillars 503 are evenly divided into two groups. One end of the two groups of L-shaped inner pillars 503 are respectively fixedly installed on both sides of one end of the two demonstration boards 2 405, and the surface of one side of the two demonstration boards 2 405 is movably fitted with the surface of one side of the demonstration board 1 302.

[0034] Specifically: one side of the four outer sleeves 501 is fixedly connected to the four ends of the L-shaped support plate 3, and the other end is fixedly installed on both sides of one end of the two demonstration boards 405, so that the user will not be shaken by force when writing.

[0035] In one embodiment, the four grooves 1 204 are movably sleeved on the surfaces of the four limiting rods 104 , and the four extension blocks 205 and the four casters 206 are correspondingly movably inside the four through slots 2 103 .

[0036] Specifically: by movably sleeved the four grooves 204 on the surfaces of the four limiting rods 104, the two connecting plates 203 are limited, and by correspondingly moving the four extension blocks 205 and the four casters 206 inside the four through grooves 2 103, the casters 206 are not hindered when rising.

[0037] Working principle: When the device is needed, the device is pushed to the required position through the four casters 206, the forward and reverse motor 2 401 and the two forward and reverse motors 1 201 are connected to the external power supply and the external controller, and the external power supply is connected to the power supply of the electrical equipment in the device through the line, and then the two forward and reverse motors 1 201 are started through the external controller, and the rotation of the two forward and reverse motors 1 201 drives the threaded rods 202 connected thereto to rotate, and the rotation of the two threaded rods 202 drives the connecting plates 203 sleeved on their surfaces to move upward, and the upward movement of the two connecting plates 203 drives the two extension blocks 205 connected at the bottom thereof and the casters 206 moves up, and at the same time, four grooves 204 are respectively embedded in the four limit rods 104 to ensure that the two connecting plates 203 will not deviate when moving up, until the bottom of the caster 206 is higher than the bottom end of the supporting base plate 1, so that the supporting base plate 1 replaces the caster 206 to support the device. If the position needs to be changed, the four casters 206 can replace the supporting base plate 1 to contact the ground again by reversing the forward and reverse motor 201 through the external controller. This method solves the problem that most demonstration boards equipped with wheels will shake when users use them because the wheels have a small contact area with the ground and poor stability; the device is fixed and completed After that, when the user needs to write, the forward and reverse motor 2 401 is started through the external controller. The forward and reverse motor 2 401 rotates to drive the connecting shaft 402 and the gear 403 to rotate. The gear 403 rotates to drive the two tooth plates 404 meshing with the surface thereof to move in opposite directions. The movement of the two tooth plates 404 drives the two demonstration boards 2 405 connected thereto to move in opposite directions. When the two demonstration boards 2 405 move, the two L-shaped inner pillars 503 on the surface thereof are stretched outward, and the two limit blocks 2 504 are limited by the two grooves 2 502, so that the two demonstration boards 2 405 will not separate from the limit blocks 1 301, and the two gear plates 404 are moved. The board 404 will not be separated from the gear 403. At the same time, when the user is writing, the four outer sleeves 501 embedded in the four L-shaped inner pillars 503 can support the two demonstration boards 405 without shaking. When the demonstration is completed, the forward and reverse motors 401 can be reversed by the external controller to retract the demonstration boards 405 on both sides for storage. In this way, when the demonstration board is full of engineering management information, there is no need to erase part of the information, and further information can be displayed directly on the side, which solves the problem that most existing demonstration boards have simple structures and limited display areas, and is convenient for effectively calling previous information during the display process.

[0038] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A demonstration board for engineering management, characterized in that: include: A support base plate (1), wherein both ends of the top of the support base plate (1) are fixedly mounted with support legs (101), the bottoms of the two support legs (101) are both provided with through slots (102), both sides of the two ends of the surface of the support base plate (1) are both provided with through slots (103), both sides of the inner cavities of the two through slots (102) are both fixedly mounted with limit rods (104), the inner cavities of the two through slots (102) are both provided with moving components (2), the tops of the two support legs (101) are fixedly connected with L-shaped support plates (3), the bottom of the inner side of the L-shaped support plates (3) is fixedly mounted with limit blocks (301), the center of the surface of the L-shaped support plates (3) is provided with an expansion component (4), four limit support components (5) are provided on both sides of the surface of the L-shaped support plates (3), and one side of the L-shaped support plates (3) is fixedly connected with a demonstration board (302).

2. A demonstration board for engineering management according to claim 1, characterized in that: The moving assembly (2) comprises a forward and reverse motor (201), the top of which is fixedly connected to the top of the inner cavity of a through slot (102), the output end of which is fixedly connected to a threaded rod (202), the bottom of which is embedded in the bottom of the inner cavity of the through slot (102) via a bearing, a connecting plate (203) is threadedly sleeved on the surface of the threaded rod (202), a groove (204) is provided on both sides of the center of the surface of the connecting plate (203), and extension blocks (205) are fixedly connected to the two ends of the bottom of the connecting plate (203), and casters (206) are connected to the bottoms of the two extension blocks (205).

3. A demonstration board for engineering management according to claim 1, characterized in that: The unfolding assembly (4) comprises a forward and reverse motor 2 (401), the forward and reverse motor 2 (401) is fixedly connected to a side surface of the L-shaped support plate (3), the output end of the forward and reverse motor 2 (401) passes through the surface of the L-shaped support plate (3) and is connected to a connecting shaft (402), one end of the connecting shaft (402) is fixedly connected to a gear (403), both sides of the surface of the gear (403) are meshed with tooth plates (404), the side surfaces of one end of the two tooth plates (404) are fixedly mounted with demonstration boards 2 (405), the bottoms of the two demonstration boards 2 (405) are provided with through slots 3 (406), and the two through slots 3 (406) are movably sleeved on the surface of the limit block 1 (301).

4. A demonstration board for engineering management according to claim 1, characterized in that: The limit support assembly (5) comprises an outer sleeve (501), both side surfaces of the outer sleeve (501) are provided with grooves 2 (502), the inner cavity of the outer sleeve (501) is movably embedded with L-shaped inner pillars (503), one end of both side surfaces of the L-shaped inner pillars (503) are fixedly connected to limit blocks 2 (504), and the two limit blocks 2 (504) are movably embedded in the two grooves 2 (502) respectively.

5. A demonstration board for engineering management according to claim 4, characterized in that: One side of the four outer sleeves (501) is respectively fixedly connected to the four ends of the L-shaped support plate (3), and the four L-shaped inner pillars (503) are evenly divided into two groups. One end of the two groups of L-shaped inner pillars (503) is respectively fixedly installed on both sides of one end of the two demonstration boards (405), and the surface of one side of the two demonstration boards (405) is movably fitted with the surface of one side of the demonstration board (302).

6. A demonstration board for engineering management according to claim 2, characterized in that: The four grooves (204) are all movably sleeved on the surfaces of the four limiting rods (104), and the four extension blocks (205) and the four casters (206) are all correspondingly movably inside the four through grooves (103).

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