Business administration teaching simulation sales volume three-dimensional demonstration device

Abstract

The invention is suitable for the technical field of business administration teaching devices, and provides a business administration teaching simulation sales volume three-dimensional demonstration device, which comprises a mounting frame, a mounting plate, a power mechanism, a demonstration body and an adjusting mechanism, and is characterized in that the adjusting mechanism comprises a first stepping motor, a double-end elastic telescopic rod, a push rod, a rotating rod, a straight gear and a rack; according to the business administration teaching simulation sales volume three-dimensional demonstration device, the installation frame, the installation plate, the power mechanism, the demonstration bodies and the adjusting mechanism are arranged, demonstration is carried out through the multiple demonstration bodies, the multiple demonstration bodies are annularly distributed at intervals, then the installation plate is driven by the power mechanism to rotate forwards and backwards, rotation demonstration can be carried out, and the demonstration effect is good. In addition, a plurality of demonstration bodies can be distributed side by side at intervals through the adjusting mechanism, demonstration is carried out in the same row, comparison is convenient, two different demonstration modes are provided and can be switched mutually, and the demonstration effect is better.

Description

Technical Field

[0001] The invention belongs to the technical field of business administration teaching devices, and in particular relates to a three-dimensional demonstration device for simulating sales volume in business administration teaching. Background Art

[0002] Business administration is the most common management major in the market economy. In the actual teaching process of business administration, simulation demonstrations of sales in management will be carried out to improve students' cognition and the interest of teaching.

[0003] After searching, China's public application CN115132030A involves a three-dimensional demonstration device for simulated sales in business administration teaching. The present invention arranges a plurality of U-shaped frames at equal intervals in a demonstration box, a seesaw is arranged under each U-shaped frame, a measuring cylinder is arranged under the seesaw, and a telescopic shaft is arranged in the measuring cylinder.

[0004] And China's public application CN111986554A discloses a three-dimensional demonstration device for simulating sales in business administration teaching, including a base plate, a vertical pole installed on the top of the base plate, a positioning frame installed on the top of the vertical pole, a support plate installed above the positioning frame, and the positioning frame and the support plate are rotatably connected through a bearing seat; different colors of water can be filled into the interiors of five water bottles respectively, and then the valves are opened one by one to make the water in the five water bottles flow into the interior of a transparent tube according to the sales data, and the high and low positions of the product sales are expressed by the colored water columns in the transparent tube.

[0005] In the above-mentioned prior art, the demonstration work is carried out in a side-by-side and spaced manner, and the working state is relatively simple. For example, a circumferential rotation demonstration cannot be carried out, and the demonstration effect is relatively conventional. Summary of the invention

[0006] The present invention provides a three-dimensional demonstration device for simulating sales volume in business administration teaching, aiming to solve the above-mentioned problems.

[0007] The present invention is implemented as follows: a three-dimensional demonstration device for simulating sales volume in business administration teaching, comprising: Mounting frame; A mounting plate is arranged above the mounting frame, the mounting plate is rotatably connected to the mounting frame, and a power mechanism for driving the mounting plate to rotate forward and reverse is installed on the mounting frame; A plurality of demonstration bodies mounted on a mounting plate, wherein the height of the demonstration bodies can be adjusted; The regulating mechanism installed on the installation plate is used to switch the plurality of demonstration bodies between a circumferentially spaced distribution state and a side-by-side spaced distribution state.

[0008] Preferably, the power mechanism comprises: a second stepper motor fixed to the mounting frame; A gear pair is fixed on the output shaft of the second stepper motor and the rotating shaft fixed at the bottom of the mounting plate, and the rotating shaft is rotatably connected with the mounting frame.

[0009] Preferably, the demonstrator comprises: A display column, wherein a movable cavity is provided in the display column along its length direction; A display rod is inserted into the active cavity, the side wall of the display rod is in contact with the side wall of the active cavity, and scale lines are arranged on the display rod.

[0010] Preferably, the adjustment mechanism comprises: A first stepper motor fixed on the mounting plate; A double-ended elastic telescopic rod fixed to the output shaft of the first stepper motor, wherein both ends of the double-ended elastic telescopic rod can be elastically telescopic; The six demonstration bodies are divided into two groups with three adjacent ones as one group. A mounting shaft is fixed at the center of the bottom of each demonstration body. The mounting shaft at the bottom of each demonstration body in the middle position is connected to the mounting shafts at the bottom of two adjacent demonstration bodies through a push rod and a rotating rod respectively. The two ends of the push rod are respectively rotatably connected to the mounting shafts at the bottom of the two demonstration bodies. The two ends of the rotating rod are respectively fixedly connected to the mounting shafts at the bottom of the two demonstration bodies. The two ends of the double-headed elastic telescopic rod are respectively rotatably connected to the mounting shafts at the bottom of the adjacent demonstration body. The push rod is hinged to the end of the double-headed elastic telescopic rod through the mounting shaft. A spur gear is fixed on the mounting shaft at the bottom of each group of demonstration bodies in the middle position, a rack meshing with the spur gear is fixed on the mounting plate, the rack is located on the side of the spur gear away from the rotating rod, and the bottom end of the mounting shaft at the bottom of each group of demonstration bodies in the middle position is horizontally slidably connected with the mounting plate.

[0011] Preferably, the double-headed elastic telescopic rod comprises a rod sleeve, a rod body and a compression spring, a rod body is respectively inserted into both ends of the rod sleeve along its length direction, the rod body is slidably connected to the rod sleeve, and a compression spring is fixedly connected between the two rod bodies.

[0012] Preferably, the business administration teaching simulation sales stereoscopic demonstration device also includes an adjustment component for adjusting the height of each demonstration body respectively.

[0013] Preferably, the adjustment component comprises: A plurality of inflatable and deflation components mounted on a mounting frame or a mounting plate, wherein the number of the inflatable and deflation components is equal to and corresponds to the number of the demonstration bodies; An air pipe is connected between each inflating and deflation member and the bottom of the activity cavity of the corresponding demonstration body.

[0014] Preferably, the inflating and deflation member comprises: A piston cylinder mounted on a mounting frame or a mounting plate; a piston disposed in the piston cylinder; An adjusting screw rod is rotatably mounted on the upper surface of the piston, the adjusting screw rod penetrates the top of the piston cylinder and is threadedly connected therewith, and the air pipe is communicated with the bottom of the piston cylinder and the bottom of the active cavity.

[0015] Preferably, the adjustment assembly is mounted on a mounting frame, the plurality of inflatable and deflation members are arranged side by side and slidably mounted on the mounting frame, and the adjustment assembly further comprises: A plurality of plates, one plate being provided between every two adjacent inflatable and deflation members, and any one of the plurality of plates being fixedly connected to the mounting frame; A plurality of bellows, which correspond to the inflating and deflation parts one by one and are located on one side of the corresponding inflating and deflation parts, the bellows are connected to the bottom of the inner cavity of the corresponding inflating and deflation parts, and the two ends of the bellows are respectively fixedly connected to the inflating and deflation parts and the adjacent plate body; A scissor mechanism for connecting a plurality of inflatable and deflation parts and a plurality of plate bodies, wherein the scissor mechanism is arranged on the sides of the plurality of inflatable and deflation parts and the plurality of plate bodies, each of the inflatable and deflation parts is hinged to a middle hinge point of the scissor mechanism, and the plate body is slidably connected to a set of upper and lower hinge points of the scissor mechanism; A bidirectional screw is rotatably arranged at one end of the plate body fixedly connected to the mounting frame, and internal thread sleeves are threadedly connected to two threaded sections of the bidirectional screw, and the two internal thread sleeves are hinged to a group of upper and lower hinge points of the scissor mechanism.

[0016] Compared with the prior art, the embodiments of the present application have the following beneficial effects: The three-dimensional demonstration device for simulating sales volume in teaching of business administration provided by the present invention is provided with a mounting frame, a mounting plate, a power mechanism, a demonstration body and an adjustment mechanism. A demonstration is performed through a plurality of demonstration bodies, and the plurality of demonstration bodies are distributed in a circumferential direction at intervals. The mounting plate is then driven by the power mechanism to rotate forward and reversely, so that a rotation demonstration can be performed. The adjustment mechanism can also be used to distribute the plurality of demonstration bodies side by side at intervals, so that the demonstration is performed in the same row, which is convenient for comparison. The device has two different demonstration modes and can switch between them, so that the demonstration effect is better.

[0017] The 3D sales volume demonstration device for business administration teaching simulation provided by the present invention can adjust the height of each demonstration body respectively to represent different sales volumes by setting an adjustment component, and can also adjust all demonstration bodies to rise and fall synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic diagram of the structure of a three-dimensional demonstration device for simulating sales volume in business administration teaching.

[0019] Figure 2 The present invention is a top view of a three-dimensional demonstration device for simulating sales volume in business administration teaching.

[0020] Figure 3It is a structural schematic diagram of another state of a three-dimensional demonstration device for simulating sales volume for teaching of business administration provided by the present invention.

[0021] Figure 4 The invention discloses a schematic structural diagram of a double-headed elastic telescopic rod in a three-dimensional demonstration device for simulating sales volume in teaching business administration.

[0022] Figure 5 The invention discloses a structural schematic diagram of an adjustment component in a three-dimensional demonstration device for simulating sales volume in teaching business administration.

[0023] Notes on the accompanying drawings: 1. Mounting frame; 2. Mounting plate; 3. Partition plate; 4. Spur gear; 5. Curved display screen; 6. Display column; 7. Display rod; 8. Scale line; 9. Double-headed elastic telescopic rod; 91. Rod sleeve; 92. Rod body; 93. Compression spring; 10. First stepper motor; 11. Rotating rod; 12. Push rod; 13. First slider; 14. Support rod; 15. Gear pair; 16. Rotating shaft; 17. Second stepper motor; 18. Rack; 19. First slide groove; 20. Adjusting screw; 21. Piston cylinder; 22. Bellows; 23. Plate body; 24. Second slider; 25. Bidirectional lead screw; 26. Threaded sleeve; 27. Scissors mechanism; 28. Piston. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0025] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] The embodiment of the present invention provides a three-dimensional demonstration device for simulating sales volume in business administration teaching, such as Figure 1-Figure 5 As shown, including: The mounting frame 1 may be provided with moving wheels, such as self-locking rollers, at the bottom of the mounting frame 1 for easy movement; A mounting plate 2 is arranged above the mounting frame 1, the mounting plate 2 is rotatably connected to the mounting frame 1, and a power mechanism for driving the mounting plate 2 to rotate forward and reverse is installed on the mounting frame 1; A plurality of demonstration bodies mounted on the mounting plate 2, preferably six demonstration bodies in this embodiment, the height of the demonstration bodies can be adjusted, and different heights represent different sales; The adjusting mechanism installed on the mounting plate 2 is used to switch the plurality of demonstration bodies between a circumferentially spaced distribution state and a side-by-side spaced distribution state.

[0027] During teaching, demonstrations are performed through multiple demonstration bodies, and different sales volumes are represented by different heights. Multiple demonstration bodies can be distributed in a circumferential direction, and then the mounting plate 2 is driven to rotate forwards and backwards by a power mechanism to perform a rotation demonstration. Multiple demonstration bodies can also be distributed side by side and spaced apart through an adjustment mechanism to perform demonstrations in the same row for easy comparison. There are two different demonstration modes that can be switched between each other, and the demonstration effect is better.

[0028] Wherein, the power mechanism comprises: The second stepper motor 17 fixed on the mounting frame 1 can be fixed by bolts, and is preferably a forward and reverse motor; A gear pair 15 fixed to the output shaft of the second stepper motor 17 and the rotating shaft 16 fixed to the bottom of the mounting plate 2, wherein the rotating shaft 16 is rotatably connected to the mounting frame 1 and may be rotatably connected via a bearing and a bearing seat; During the rotation demonstration, the second stepper motor 17 is started, and the second stepper motor 17 drives the rotating shaft 16 to rotate forward and reverse through the gear pair 15, and the rotating shaft 16 drives the mounting plate 2 to rotate forward and reverse. The support rod 14 can be fixed at both ends of the lower surface of the mounting plate 2, and the support rod 14 is slidably connected to the annular track on the mounting frame 1 to improve the stability of the mounting plate 2.

[0029] In this embodiment, the demonstration body includes: A display column 6, wherein a movable cavity is provided in the display column 6 along its length direction, and a curved display screen 5 can be installed on the outer side wall of the display column 6 to display relevant information; The display rod 7 is inserted into the active cavity, and the side wall of the display rod 7 is in contact with the side wall of the active cavity. A sealing ring can be arranged between the two to achieve a sealing effect to prevent air leakage. The display rod 7 is provided with scale lines 8, and the approximate sales value can be observed according to the scale lines 8; In a specific implementation, the adjustment mechanism includes: The first stepper motor 10 fixed on the mounting plate 2 can be fixed by bolts. Preferably, the first stepper motor 10 is located at the center of the plurality of demonstration bodies distributed annularly at intervals; A double-ended elastic telescopic rod 9 fixed on the output shaft of the first stepper motor 10, both ends of the double-ended elastic telescopic rod 9 can be elastically telescopic, the double-ended elastic telescopic rod 9 includes a rod sleeve 91, a rod body 92 and a compression spring 93, both ends of the rod sleeve 91 are respectively penetrated with a rod body 92 along the length direction thereof, the rod body 92 is slidably connected to the rod sleeve 91, a compression spring 93 is fixedly connected between the two rod bodies 92, and both ends of the compression spring 93 can be hooked with the ends of the two rod bodies 92 respectively; The six demonstration bodies are divided into two groups with three adjacent ones as a group. A mounting shaft is fixed at the center of the bottom of each demonstration body. The mounting shaft at the bottom of the demonstration body in the middle position of each group is connected to the mounting shafts at the bottom of two adjacent demonstration bodies through a push rod 12 and a rotating rod 11, respectively. The two ends of the push rod 12 are rotatably connected to the mounting shafts at the bottom ends of the two demonstration bodies, and the two ends of the rotating rod 11 are fixedly connected to the mounting shafts at the bottom ends of the two demonstration bodies. The two ends of the double-headed elastic telescopic rod 9 are rotatably connected to the mounting shafts at the bottom ends of the adjacent demonstration bodies, and the push rod 12 is hinged to the end of the double-headed elastic telescopic rod 9 through the mounting shaft.

[0030] A spur gear 4 is fixed on the mounting shaft at the bottom of each group of demonstration bodies in the middle position, and a rack 18 meshing with the spur gear 4 is fixed on the mounting plate 2. The rack 18 is located on the side of the spur gear 4 away from the rotating rod 11. The bottom end of the mounting shaft at the bottom of each group of demonstration bodies in the middle position is horizontally slidably connected to the mounting plate 2. Specifically, a first slider 13 is fixed thereon, and the first slider 13 is horizontally slidably connected to the mounting plate 2. The mounting plate 2 is provided with a first slide groove 19 that slidably cooperates with the first slider 13. Rotation demonstration Figure 2 As shown, when it is necessary to switch the demonstration form, the first stepper motor 10 drives the double-headed elastic telescopic rod 9 to rotate to a horizontal position, and the double-headed elastic telescopic rod 9 drives the demonstration bodies at both ends to gradually move to a horizontal state. At the same time, the double-headed elastic telescopic rod 9 drives the demonstration body in the middle position to slide outward through the push rod 12. At the same time, the spur gear 4 and the rack 18 move relative to each other, driving the demonstration body in the middle position to rotate, thereby driving another demonstration body to rotate to a nearly horizontal state through the rotating rod 11, so that all the demonstration bodies are in a nearly side-by-side state for side-by-side spaced distribution demonstration.

[0031] Furthermore, the business administration teaching simulated sales volume stereoscopic demonstration device also includes an adjustment component for adjusting the height of each demonstration body respectively, so as to simulate and demonstrate different sales volumes.

[0032] Furthermore, the adjustment component includes: A plurality of inflatable and deflation components mounted on the mounting frame 1 or the mounting plate 2, wherein the number of the inflatable and deflation components is equal to and corresponds to the demonstration bodies; An air pipe (not shown) is connected between each inflation and deflation member and the bottom of the activity cavity of the corresponding demonstration body.

[0033] It should be explained that by inflating or deflation of the active cavity of the corresponding demonstration body through the inflation and deflation piece, the gas in the active cavity increases or decreases, and the air pressure in the active cavity increases or decreases, thereby causing the display rod 7 to rise or fall, adjusting the height of the demonstration body, and performing different sales displays.

[0034] In this embodiment, the inflating and deflation component includes: A piston cylinder 21 mounted on the mounting frame 1 or the mounting plate 2; A piston 28 disposed in the piston cylinder 21; The adjusting screw 20 is rotatably mounted on the upper surface of the piston 28 and can be rotatably mounted through a bearing and a bearing seat. The adjusting screw 20 passes through the top of the piston cylinder 21 and is threadedly connected thereto. A through hole can be opened at the top of the piston cylinder 21. The air pipe is connected to the bottom of the piston cylinder 21 and the bottom of the active chamber. By rotating the adjusting screw 20, the adjusting screw 20 drives the piston 28 to move upward or downward. When the piston 28 moves downward, the air in the piston cylinder 21 is pushed into the active cavity, so that the gas in the active cavity increases. When the piston 28 moves upward, the air in the active cavity is sucked into the piston cylinder 21, so that the gas in the piston cylinder 21 decreases, thereby realizing the lifting and lowering of the display rod 7.

[0035] Preferably, the plurality of inflatable and deflation parts are arranged side by side and slidably mounted on the mounting frame 1 or the mounting plate 2, a second slider 24 can be fixed at the bottom of the piston cylinder 21, and a second slide groove for sliding connection of the second slider 24 is provided on the mounting frame 1 or the mounting plate 2. In this embodiment, the adjustment assembly is mounted on the mounting frame 1, and a partition 3 is fixed between the adjustment assembly and the mounting plate 2, and the partition 3 blocks the adjustment assembly, making it more beautiful during demonstration. The adjustment assembly also includes: A plurality of plates 23, wherein a plate 23 is provided between every two adjacent inflatable and deflation members, and any one of the plurality of plates 23 is fixedly connected to the mounting frame 1; A plurality of bellows 22, which correspond to the inflatable and deflation parts one by one and are located on one side of the corresponding inflatable and deflation parts, the bellows 22 are connected to the bottom of the inner cavity of the corresponding inflatable and deflation parts, and the two ends of the bellows 22 are respectively fixedly connected to the inflatable and deflation parts and the adjacent plate body 23, and can be fixed by glue; A scissor mechanism 27 for connecting a plurality of inflatable and deflation parts and a plurality of plate bodies 23, wherein the scissor mechanism 27 is arranged on the sides of the plurality of inflatable and deflation parts and the plurality of plate bodies 23, each of the inflatable and deflation parts is hinged to a middle hinge point of the scissor mechanism 27, and the plate bodies 23 are slidably connected to a set of upper and lower hinge points of the scissor mechanism 27; A bidirectional screw rod 25 is rotatably provided at one end of a plate body 23 fixedly connected to the mounting frame 1 , and internal threaded sleeves 26 are threadedly connected to two threaded sections of the bidirectional screw rod 25 . The two internal threaded sleeves 26 are hinged to a set of upper and lower hinge points of a scissor mechanism 27 .

[0036] During operation, the height of each demonstration body can be adjusted by adjusting the adjusting screws 20 of multiple inflatable and deflation parts to demonstrate different sales volumes. Then, the bidirectional screw rod 25 can be rotated to drive the two internal threaded sleeves 26 to move closer or farther away, thereby extending or shortening the scissor mechanism 27, so that the distance between each inflatable and deflation part and the plate body 23 becomes larger or smaller, so that the air in the piston cylinders 21 of all inflatable and deflation parts enters the corresponding bellows 22 or the air in the bellows 22 enters the corresponding piston cylinder 21, and the air output or air intake in the piston cylinders 21 of all inflatable and deflation parts is the same, so that the demonstration bodies can be lowered or raised to the same height. For example, when a certain value needs to be added or subtracted on the basis of the current demonstration sales volume, adjustments can be made quickly, thereby improving work efficiency.

[0037] It should be noted that, for the above embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A three-dimensional demonstration device for simulating sales volume in business administration teaching, characterized in that: include: Mounting frame; A mounting plate is arranged above the mounting frame, the mounting plate is rotatably connected to the mounting frame, and a power mechanism for driving the mounting plate to rotate forward and reverse is installed on the mounting frame; A plurality of demonstration bodies mounted on a mounting plate, wherein the height of the demonstration bodies can be adjusted; The regulating mechanism installed on the installation plate is used to switch the plurality of demonstration bodies between a circumferentially spaced distribution state and a side-by-side spaced distribution state.

2. The 3D sales simulation demonstration device for business administration teaching as claimed in claim 1, characterized in that: The power mechanism comprises: a second stepper motor fixed to the mounting frame; A gear pair is fixed on the output shaft of the second stepper motor and the rotating shaft fixed at the bottom of the mounting plate, and the rotating shaft is rotatably connected with the mounting frame.

3. The 3D sales simulation demonstration device for business administration teaching as claimed in claim 1, characterized in that: The demonstration body comprises: A display column, wherein a movable cavity is provided in the display column along the length direction thereof; A display rod is inserted into the active cavity, the side wall of the display rod is in contact with the side wall of the active cavity, and scale lines are arranged on the display rod.

4. The 3D sales demonstration device for business administration teaching simulation as claimed in claim 1, characterized in that: The regulating mechanism comprises: A first stepper motor fixed on the mounting plate; A double-ended elastic telescopic rod fixed to the output shaft of the first stepper motor, wherein both ends of the double-ended elastic telescopic rod can be elastically telescopic; The six demonstration bodies are divided into two groups with three adjacent ones as one group. A mounting shaft is fixed at the center of the bottom of each demonstration body. The mounting shaft at the bottom of each demonstration body in the middle position is connected to the mounting shafts at the bottom of two adjacent demonstration bodies through a push rod and a rotating rod respectively. The two ends of the push rod are respectively rotatably connected to the mounting shafts at the bottom of the two demonstration bodies. The two ends of the rotating rod are respectively fixedly connected to the mounting shafts at the bottom of the two demonstration bodies. The two ends of the double-headed elastic telescopic rod are respectively rotatably connected to the mounting shafts at the bottom of the adjacent demonstration body. The push rod is hinged to the end of the double-headed elastic telescopic rod through the mounting shaft. A spur gear is fixed on the mounting shaft at the bottom of each group of demonstration bodies in the middle position, a rack meshing with the spur gear is fixed on the mounting plate, the rack is located on the side of the spur gear away from the rotating rod, and the bottom end of the mounting shaft at the bottom of each group of demonstration bodies in the middle position is horizontally slidably connected with the mounting plate.

5. The 3D demonstration device for business administration teaching simulation sales as claimed in claim 4, characterized in that: The double-headed elastic telescopic rod comprises a rod sleeve, a rod body and a compression spring. A rod body is respectively inserted into both ends of the rod sleeve along its length direction. The rod body is slidably connected to the rod sleeve, and a compression spring is fixedly connected between the two rod bodies.

6. The 3D sales simulation demonstration device for business administration teaching as claimed in claim 1, characterized in that: The business administration teaching simulation sales volume stereoscopic demonstration device also includes an adjustment component for adjusting the height of each demonstration body respectively.

7. The 3D sales demonstration device for business administration teaching simulation as claimed in claim 6, characterized in that: The adjustment component comprises: A plurality of inflatable and deflation components mounted on a mounting frame or a mounting plate, wherein the number of the inflatable and deflation components is equal to and corresponds to the number of the demonstration bodies; An air pipe is connected between each inflating and deflation member and the bottom of the activity cavity of the corresponding demonstration body.

8. The 3D sales simulation demonstration device for business administration teaching as claimed in claim 7, characterized in that: The inflating and deflation parts include: A piston cylinder mounted on a mounting frame or a mounting plate; a piston disposed in the piston cylinder; An adjusting screw rod is rotatably mounted on the upper surface of the piston, the adjusting screw rod penetrates the top of the piston cylinder and is threadedly connected therewith, and the air pipe is communicated with the bottom of the piston cylinder and the bottom of the active cavity.

9. The 3D demonstration device for business administration teaching simulation sales as claimed in claim 7, characterized in that: The adjustment assembly is mounted on a mounting frame, the plurality of inflating and deflation components are arranged side by side and slidably mounted on the mounting frame, and the adjustment assembly further comprises: A plurality of plates, one plate being provided between every two adjacent inflatable and deflation members, and any one of the plurality of plates being fixedly connected to the mounting frame; A plurality of bellows, which correspond to the inflating and deflation parts one by one and are located on one side of the corresponding inflating and deflation parts, the bellows are connected to the bottom of the inner cavity of the corresponding inflating and deflation parts, and the two ends of the bellows are respectively fixedly connected to the inflating and deflation parts and the adjacent plate body; A scissor mechanism for connecting a plurality of inflatable and deflation parts and a plurality of plate bodies, wherein the scissor mechanism is arranged on the sides of the plurality of inflatable and deflation parts and the plurality of plate bodies, each of the inflatable and deflation parts is hinged to a middle hinge point of the scissor mechanism, and the plate body is slidably connected to a set of upper and lower hinge points of the scissor mechanism; A bidirectional screw is rotatably arranged at one end of the plate body fixedly connected to the mounting frame, and internal thread sleeves are threadedly connected to two threaded sections of the bidirectional screw, and the two internal thread sleeves are hinged to a group of upper and lower hinge points of the scissor mechanism.

Images