Demonstration device for accounting teaching

Abstract

The utility model relates to the technical field of teaching equipment, in particular to a demonstration device for accounting teaching, which is adjustable in height and tidy in wire arrangement. Comprising a demonstration screen, a support, a base and a controller, the demonstration screen is installed on the support, the support is installed on the base, a height adjusting mechanism and a winding mechanism are arranged in the support, and the controller is electrically connected with the demonstration screen and the height adjusting mechanism; the winding mechanism comprises a storage box fixed on the support, a threading hole is formed in the storage box, a winding roller is arranged in the storage box, a wire harness is wound on the winding roller, the two ends of the wire harness penetrate through the threading hole to be electrically connected with the demonstration screen and the power source respectively, a driving assembly used for driving the winding roller to rotate is arranged on the winding roller, and the driving assembly is in transmission connection with the height adjusting mechanism; when the height of the demonstration screen changes, the driving assembly drives the winding roller to rotate to wind and unwind the wire bundle.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of teaching equipment, particularly to a demonstration device for accounting teaching. BACKGROUND

[0002] In economic activities, accounting plays a vital role. It is a kind of economic management activity that uses special methods to reflect and supervise the economic activities of enterprises, government agencies or other economic organizations continuously, systematically and comprehensively by taking currency as the main measurement unit. It provides key basis for enterprise decision-making through recording, classifying, summarizing and reporting financial information. Accounting teaching is a process of imparting accounting knowledge and skills to students, aiming to cultivate professional accounting talents and enable students to understand and use accounting principles and methods to handle various financial matters.

[0003] In accounting teaching, a demonstration device is an indispensable teaching tool that can present abstract accounting knowledge in an intuitive way to help students better understand complex accounting processes and concepts. The existing demonstration device usually includes a demonstration screen, a support, a base, and a height adjustment structure to adapt to users of different heights and usage habits. During height adjustment, the wire harness between the power supply and the demonstration screen is easily tangled and even broken when the demonstration screen is raised and reset, affecting use. SUMMARY

[0004] To solve the above technical problems, the utility model provides a demonstration device for accounting teaching with adjustable height and neat wire arrangement.

[0005] The demonstration device for accounting teaching of the utility model comprises a demonstration screen, a support, a base and a controller, the demonstration screen is installed on the support, the support is installed on the base, a height adjustment mechanism and a winding mechanism are arranged in the support, and the controller is electrically connected with the demonstration screen and the height adjustment mechanism; the winding mechanism comprises a storage box fixed on the support, the storage box is provided with a threading hole, a winding roller is arranged in the storage box, a wire harness is wound on the winding roller, both ends of the wire harness pass through the threading hole and are electrically connected with the demonstration screen and the power supply respectively, the winding roller is provided with a driving assembly for driving the rotation of the winding roller, and the driving assembly is in transmission connection with the height adjustment mechanism; when the height of the demonstration screen changes, the driving assembly drives the winding roller to rotate and wind or unwind the wire harness.

[0006] Further, the support comprises a fixed rod and a movable rod, the movable rod is sleeved outside the fixed rod, the demonstration screen is fixed on the movable rod, the height adjustment mechanism comprises a first screw rod and a first sliding block, the first screw rod is vertically arranged in the fixed rod, the first sliding block is in screw connection with the first screw rod, the movable rod is fixedly connected with the first sliding block, and one end of the first screw rod is provided with a driving motor for driving the rotation of the first screw rod.

[0007] Further, the fixed rod is internally provided with vertical guide rails, and the first sliding block is in sliding connection with the guide rails.

[0008] Further, the two ends of the guide rails are provided with elastic buffers.

[0009] Further, the driving assembly comprises a worm and a worm gear in mutual engagement, the worm is coaxially fixedly connected with the winding roller, and the worm gear is coaxially fixedly connected with the first screw rod.

[0010] Further, the receiving box is internally provided with a wire arranging mechanism for guiding the wire harness to be wound on the winding roller, the wire arranging mechanism comprises a second screw rod and a second sliding block, the second screw rod is arranged in parallel with the winding roller, the second sliding block is in screw connection with the second screw rod, the second sliding block is provided with a wire guide hole for guiding the wire harness, and the second screw rod is in transmission connection with the winding roller through a gear set.

[0011] Further, a protective sleeve is embedded in the wire guide hole.

[0012] Further, a handheld remote controller is further included, and the handheld remote controller is in wireless connection with the controller.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] 1. When the demonstration screen height changes, the winding mechanism drives the winding roller to rotate to wind or unwind the wire harness, so that the wire harness is not loose, scattered or even entangled due to the downward movement of the demonstration screen during the height adjustment process, and the wire harness is not broken when the demonstration screen is raised and reset, thereby prolonging the service life of the wire harness and ensuring the normal use of the demonstration device.

[0015] 2. The wire arranging mechanism arranged in the receiving box cooperates with the second screw rod and the second sliding block, and is in transmission connection with the worm gear and the worm, so that the wire harness is neatly wound on the winding roller, the wire harness is not entangled and scattered, and the practicability of the winding mechanism is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described below with reference to the drawings.

[0017] Figure 1 is a structural schematic view of the present application;

[0018] Figure 2 is a sectional view of the present application;

[0019] Figure 3 is a front view of the present application;

[0020] Figure 4 is Figure 3 a sectional view of part A of the present application;

[0021] Figure 5It is part connection structure schematic diagram of the utility model;

[0022] Marked in the drawing: 1, demonstration screen;2, support;21, fixed rod;211, guide rail;212, elastic buffer;22, movable rod;3, base;4, controller;5, height adjusting mechanism;51, first screw;52, first sliding block;53, drive motor;6, winding mechanism;61, storage box;611, threading hole;62, winding roller;63, wire harness;64, drive assembly;641, turbine;642, worm;65, wire arranging mechanism;651, second screw;652, second sliding block;6521, wire guide hole;653, gear set;7, handheld remote controller. DETAILED DESCRIPTION

[0023] The specific embodiments of the utility model are described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but are not used to limit the scope of the utility model.

[0024] As Figures 1 to 5 The utility model discloses a demonstration device for accounting teaching, which comprises a demonstration screen 1, a support 2, a base 3 and a controller 4. The demonstration screen 1 is installed on the support 2, and the support 2 is installed on the base 3. The support 2 is internally provided with a height adjusting mechanism 5 and a winding mechanism 6. The controller 4 is electrically connected with the demonstration screen 1 and the height adjusting mechanism 5. The winding mechanism 6 comprises a storage box 61 fixed on the support 2. The storage box 61 is provided with a threading hole 611. The storage box 61 is internally provided with a winding roller 62. The winding roller 62 is wound with a wire harness 63. The two ends of the wire harness 63 are respectively electrically connected with the demonstration screen 1 and a power supply through the threading hole 611. The winding roller 62 is provided with a drive assembly 64 for driving the rotation of the winding roller 62. The drive assembly 64 is in transmission connection with the height adjusting mechanism 5. When the height of the demonstration screen 1 changes, the drive assembly 64 drives the winding roller 62 to rotate and wind or unwind the wire harness 63.

[0025] During the working process, the winding mechanism and the height adjusting mechanism work together. When the height of the demonstration screen 1 needs to be adjusted, the action of the height adjusting mechanism 5 drives the driving assembly 64 to work because the driving assembly 64 is in transmission connection with the height adjusting mechanism 5. The driving assembly 64 drives the winding roller 62 to rotate. When the demonstration screen 1 is lowered, the winding roller 62 rotates forward under the action of the driving assembly 64 to wind up the wire harness 63, so as to avoid the situation that the wire harness is too long and appears fluffy, scattered or tangled. When the demonstration screen 1 is raised, the winding roller 62 reversely rotates under the action of the driving assembly 64 to release an appropriate amount of wire harness 63, so as to ensure that the wire harness can adjust the length accordingly with the movement of the demonstration screen 1, and always maintain appropriate tension, which will not be torn off due to being too tight, and will not become messy due to being too loose. The height adjustment requirement of the demonstration screen 1 can be met, and the neatness and safety of the wire harness 63 are ensured. The user is more convenient and smooth when operating the demonstration device, and will not be disturbed by the problem of the wire harness 63, which improves the overall use experience.

[0026] The support 2 includes a fixed rod 21 and a movable rod 22. The movable rod 22 is sleeved outside the fixed rod 21. The demonstration screen 1 is fixed on the movable rod 22. The height adjusting mechanism 5 includes a first screw rod 51 and a first sliding block 52. The first screw rod 51 is vertically arranged in the fixed rod 21. The first sliding block 52 is in threaded connection with the first screw rod 51. The movable rod 22 is fixedly connected with the first sliding block 52. One end of the first screw rod 51 is provided with a driving motor 53 for driving the rotation of the first screw rod 51. When the driving motor 53 drives the first screw rod 51 to rotate, based on the characteristics of the thread, the first sliding block 52 drives the movable rod 22 to move up and down along the fixed rod 21, so as to drive the demonstration screen 1 to realize height adjustment. By accurately controlling the number of rotation and direction of the driving motor 53, the height of the demonstration screen 1 can be accurately adjusted.

[0027] To further improve the motion stability, the fixed rod 21 is provided with a vertical guide rail 211. The first sliding block 52 is in sliding connection with the guide rail 211. The guide rail 211 plays an auxiliary guiding role. When the driving motor 53 drives the first screw rod 51 to rotate, so that the first sliding block 52 threaded on the first screw rod 51 has a motion trend, the guide rail 211 limits the motion track of the first sliding block 52. Due to the existence of the guide rail 211, the first sliding block 52 can only move along the vertical direction of the guide rail 211, avoiding the torque generated when the first screw rod 51 rotates and other factors, so that the first sliding block 52 does not deviate or shake during the motion process. The movable rod 22 and the demonstration screen 1 fixed thereon are driven to realize stable and accurate up-and-down linear motion, and the height adjustment operation is completed.

[0028] The two ends of the guide rail 211 are provided with elastic buffers 212. The elastic buffers 212 have the characteristics of elastic deformation, and limit and buffer when the first sliding block 52 reaches the end of the guide rail 211, avoiding rigid collision.

[0029] The driving assembly 64 can be implemented by gear transmission, chain transmission, etc. The gear transmission has high efficiency, compact structure and accurate transmission ratio, but has high noise in high-speed operation and high installation requirement. The chain transmission can transmit power at a long distance, has high carrying capacity and high efficiency, but has inaccurate instantaneous transmission ratio and needs regular maintenance. In the device, a large transmission ratio needs to be achieved in a limited space. Therefore, the driving assembly 64 includes a turbine 641 and a worm 642 that mesh with each other. The turbine 641 is fixedly connected with the winding roller 62 in a coaxial manner. The worm 642 is fixedly connected with the first screw 51 in a coaxial manner. Through the design, the worm 642 rotates synchronously with the first screw 51. The turbine 641 meshing with the worm 642 rotates under the driving of the worm 642. Since the turbine 641 is connected with the winding roller 62, the rotation of the turbine 641 drives the winding roller 62 to rotate synchronously, so as to achieve the winding and unwinding operation of the wire harness 63 by the winding roller 62. The turbine 641 and the worm 642 can achieve a large transmission ratio, that is, the worm 642 rotates many circles, and the turbine 641 rotates only one circle. The rotation of the first screw 51 can be effectively converted into a suitable rotating speed of the winding roller 62, so as to meet the accurate requirement of the winding and unwinding of the wire harness 63, and at the same time, the internal space of the support 2 is not occupied too much. When the demonstration screen 1 is adjusted to a suitable height and stops, the self-locking characteristic of the turbine 641 and the worm 642 prevents the winding roller 62 from rotating by itself due to external force, so as to ensure the stable tension state of the wire harness 63 and improve the safety and stability of the device.

[0030] In order to uniformly distribute the wire harness 63, the receiving box 61 is provided with a wire arranging mechanism 65 for guiding the wire harness 63 to be wound on the winding roller 62. The wire arranging mechanism 65 includes a second screw 651 and a second sliding block 652. The second screw 651 is arranged in parallel with the winding roller 62. The second sliding block 652 is screwed with the second screw 651. The second sliding block 652 is provided with a wire guide hole 6521 for guiding the wire harness 63. The second screw 651 is in transmission connection with the winding roller 62 through a gear set 653. The turbine 641 transmits power to the second screw 651 through the gear set 653 and the winding roller 62. When the second screw 651 rotates, the second sliding block 652 moves linearly along the second screw 651. The wire harness 63 passes through the wire guide hole 6521. The linear movement of the second sliding block 652 guides the wire harness 63 to be uniformly wound on the winding roller 62. With the winding and unwinding of the wire harness 63 by the winding roller 62, the wire arranging mechanism 65 ensures that the wire harness 63 is wound in order, so as to avoid disorder and overlapping of the wire harness 63.

[0031] In order to improve safety, a protective sleeve is embedded in the wire guide hole 6521. The protective sleeve is made of soft and wear-resistant materials, such as rubber and silica gel. The wire harness 63 passing through the wire guide hole 6521 is isolated and protected, so as to avoid damage of the outer skin of the wire harness 63 caused by direct friction with a hard edge, and to avoid exposure of internal wires to cause short circuit, electric leakage and other safety hazards.

[0032] In order to realize remote control, a handheld remote controller 7 is further arranged, the handheld remote controller 7 is wirelessly connected with the controller 4; the handheld remote controller 7 is provided with a control element such as a button or a knob, corresponding control instructions are generated by operating the control element, the instructions are sent to the controller 4 in the form of wireless signals, so that remote adjustment of the height of the demonstration screen 1 is realized, and switching, playing and other operations of the demonstration content are realized, which are not limited by distance and space, and meet the needs of different teaching scenes.

[0033] The utility model discloses an accounting teaching demonstration device, its in working, first with device moves to the appropriate position, switch on the power, through handheld remote controller 7 or directly in controller 4 input height adjustment instruction, controller 4 will signal transmission to drive motor 53, drive motor 53 drive first screw rod 51 rotation, first sliding block 52 along the guide rail 211 do up and down linear motion, drive movable rod 22 and move up and down, thereby make the demonstration screen 1 of fixed in movable rod 22 height adjustment, in first screw rod 51 rotation, with its connection worm 642 synchronous rotation, worm 642 drive with its meshing turbine 641 rotation, and then drive winding roller 62 rotation, when demonstration screen 1 drops, winding roller 62 positive rotation, with wire harness 63 is wound, when demonstration screen 1 rises, winding roller 62 reverse rotation, release appropriate wire harness 63, always keep wire harness 63 appropriate tension degree, turbine 641 through gear set 653 and winding roller 62 with power transmission to second screw rod 651, second screw rod 651 rotation makes second sliding block 652 along second screw rod 651 do linear motion, guide wire harness 63 even winding on winding roller 62.

[0034] The utility model discloses an accounting teaching demonstration device, its installation mode, connecting mode or setting mode are all common mechanical mode, can be implemented as long as reaching its beneficial effect.

[0035] The above-mentioned is only the preferred implementation mode of the utility model, should point out, for the ordinary skill in the art of the technical field, on the premise of not departing from the technical principle of the utility model, can make a number of improvements and variations, these improvements and variations also should view as the protection range of the utility model.

Claims

1. A demonstration device for accounting instruction, characterized by comprising: The application relates to a display screen device, which comprises a display screen (1), a support (2), a base (3) and a controller (4), the display screen (1) is installed on the support (2), the support (2) is installed on the base (3), a height adjusting mechanism (5) and a winding mechanism (6) are arranged in the support (2), and the controller (4) is electrically connected with the display screen (1) and the height adjusting mechanism (5); the winding mechanism (6) comprises a storage box (61) fixed on the support (2), a threading hole (611) is arranged on the storage box (61), a winding roller (62) is arranged in the storage box (61), a wire harness (63) connected with the display screen (1) is wound on the winding roller (62), the wire harness (63) is respectively electrically connected with the display screen (1) and a power supply through the threading hole (611), a driving assembly (64) for driving the winding roller (62) to rotate is arranged on the winding roller (62), and the driving assembly (64) is in transmission connection with the height adjusting mechanism (5); when the height of the display screen (1) changes, the driving assembly (64) drives the winding roller (62) to rotate to wind or unwind the wire harness (63).

2. The accounting teaching demonstration apparatus of claim 1, wherein The support (2) comprises a fixed rod (21) and a movable rod (22), the movable rod (22) is arranged outside the fixed rod (21), the display screen (1) is fixed on the movable rod (22), the height adjusting mechanism (5) comprises a first screw rod (51) and a first sliding block (52), the first screw rod (51) is vertically arranged in the fixed rod (21), the first sliding block (52) is in screw connection with the first screw rod (51), the movable rod (22) is fixedly connected with the first sliding block (52), and one end of the first screw rod (51) is provided with a driving motor (53) for driving the first screw rod (51) to rotate.

3. The accounting teaching demonstration apparatus of claim 2, wherein, A vertical guide rail (211) is arranged in the fixed rod (21), and the first sliding block (52) is in sliding connection with the guide rail (211).

4. The accounting teaching demonstration apparatus of claim 3, wherein Elastic buffers (212) are arranged at two ends of the guide rail (211).

5. The accounting teaching demonstration apparatus of claim 2, wherein, The driving assembly (64) comprises a turbine (641) and a worm (642) in meshing connection, the turbine (641) is coaxially and fixedly connected with the winding roller (62), and the worm (642) is coaxially and fixedly connected with the first screw rod (51).

6. The accounting teaching demonstration apparatus of claim 5, wherein, A wire arranging mechanism (65) for guiding the wire harness (63) to be wound on the winding roller (62) is arranged in the storage box (61), the wire arranging mechanism (65) comprises a second screw rod (651) and a second sliding block (652), the second screw rod (651) is arranged in parallel with the winding roller (62), the second sliding block (652) is in screw connection with the second screw rod (651), a wire guide hole (6521) for guiding the wire harness (63) is arranged on the second sliding block (652), and the second screw rod (651) is in transmission connection with the winding roller (62) through a gear set (653).

7. The accounting teaching demonstration apparatus of claim 6, wherein, A protective sleeve is embedded in the wire guide hole (6521).

8. The accounting teaching demonstration apparatus of claim 1, wherein, A hand-held remote control (7) is also included, which is wirelessly connected to the controller (4).

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