Science popularization propaganda car

Abstract

The utility model relates to the technical field of propaganda vehicles, and discloses a science popularization propaganda vehicle which comprises a vehicle body, a servo motor is fixedly installed in the vehicle body, a shell is fixedly installed at the position, corresponding to a main belt pulley, of the top side of a compartment of the vehicle body, and an installation base is fixedly installed at the position, corresponding to the shell, of the top side of the compartment of the vehicle body. A screw rod is rotationally connected between the shell and the mounting seat, a driven belt wheel is fixedly mounted at the end, penetrating into the shell, of the screw rod, the driven belt wheel is sleeved with the transmission belt, a reciprocating push-pull assembly is arranged at the top of the vehicle body, and a sun-shading and rain-shielding assembly is arranged on the side, close to the display screen, of the top of the vehicle body. The threaded sleeve on the outer side of the threaded rod is driven to move through rotation of the threaded rod, then the push-pull rod is driven to move synchronously through the supporting plate, the connecting rod is driven to stretch and unfold the tarpaulin, and then the tarpaulin covers the upper portion of the display screen, so that the sun-shading and rain-sheltering effects can be achieved, and propaganda personnel can stand in front of the display screen conveniently to conduct science popularization explanation.

Description

Technical Field

[0001] The utility model relates to the technical field of propaganda vehicles, in particular to a popular science propaganda vehicle. Background Art

[0002] A propaganda vehicle is a mobile device that integrates advertising functions. It displays and disseminates advertising content by carrying various promotional tools, such as LED screens and speakers. The propaganda vehicle can bring scientific and technological knowledge to the public, expanding the public's opportunities to obtain scientific and technological knowledge and information.

[0003] For example, the intelligent safety education and science popularization propaganda vehicle disclosed in the Chinese patent with publication number CN209560842U includes a car, an LED display screen, a simulation box and a rotating display board, wherein the car is located on one side of the car and is installed with a box door by rotating the coach, the car is located at the center of the car and is fixedly installed with a drive motor by screws, a rotating display board is fixedly welded on the power output shaft of the drive motor, a simulation box is fixedly glued to the middle of one side of the rotating display board, and a water tank is fixedly glued to the surface of the rotating display board on one side of the simulation box. The utility model can simulate the situation where groundwater washes away the soil and causes ground depression through the simulation box set on one side of the rotating display board in the car, so as to warn construction workers to complete construction tasks according to design standards during construction, and secondly, by placing pork on the test bench and passing high voltage electricity into the pork through a metal discharge strip, it can simulate the situation where humans are electrocuted, so as to promote safe use of electricity.

[0004] In the process of realizing this patent, the inventor found that there are at least the following problems in this technology: although the above technical solution can simulate on-site promotion, it requires operators to operate on-site, and the operators are standing outside during the operation, so they will be exposed to the sun or rain, which will affect the health of the operators. Therefore, further improvements can be made. Utility Model Content

[0005] To solve the above-mentioned problems, the utility model provides the following technical solutions: a science popularization vehicle, comprising a vehicle body, a display screen is arranged on the side of a compartment of the vehicle body, a servo motor is fixedly installed inside the vehicle body, a main pulley is fixedly installed on one end of an output shaft of the servo motor, a transmission belt is sleeved on the outer side of the main pulley, a shell is fixedly installed on the top side of the compartment of the vehicle body corresponding to the main pulley, a mounting seat is fixedly installed on the top side of the compartment of the vehicle body corresponding to the shell, a screw is rotatably connected between the shell and the mounting seat, and a slave pulley is fixedly installed on one end of the screw that penetrates into the interior of the shell, and the transmission belt is sleeved on the outer side of the slave pulley, a reciprocating push-pull assembly is arranged on the top of the vehicle body, and a sunshade and rain shield assembly is arranged on the side of the top of the vehicle body close to the display screen, the main pulley is driven to rotate by starting the servo motor, and the slave pulley drives the screw to rotate synchronously through the transmission belt, so that the reciprocating push-pull assembly can be processed, so that the sunshade and rain shield assembly is unfolded to play the role of sunshade and rain shelter.

[0006] As an optimization, the reciprocating push-pull assembly includes a threaded sleeve threadedly mounted on the outside of a screw rod, support plates are fixedly mounted on both sides of the threaded sleeve in the horizontal direction, push-pull rods are fixedly mounted on the ends of the support plates, a fixed sleeve is fixedly mounted on the top side of the vehicle body near the sunshade and rain shield assembly, and a connecting rod is fixedly mounted between the ends of the push-pull rods on both sides.

[0007] As an optimization, the push-pull rod is slidably inserted into the fixed sleeve, and the threaded sleeve is moved along the outside of the screw by rotating the screw inside the threaded sleeve, and then the push-pull rod is driven to translate through the support plates on both sides, thereby driving the connecting rod to unfold the sunshade and rain shield assembly.

[0008] As an optimization, a support is fixedly installed on the top side of the vehicle body, a limiting rod is fixedly installed between the supports, and the limiting rod passes through the support plate. The limiting rods on both sides limit the support plate, so that the support plate can move horizontally along the outer side of the limiting rod.

[0009] As an optimization, the sunshade and rain shield assembly includes two fixed shells fixedly installed on the top side of the vehicle body, and a winding roller is rotatably connected between the fixed shells on both sides, and a tarpaulin is wound and rolled up on the outer side of the winding roller.

[0010] As an optimization, one edge of the outer circle of the tarpaulin is fixedly installed in the connecting rod, and the tarpaulin can be pulled outward by moving the connecting rod, so that it can be unfolded, thereby providing shade and shelter from rain.

[0011] As an optimization, a rotating wheel is fixedly installed at one end of the winding roller located inside the fixed shell, and a spiral spring is fixedly installed between the outer side of the rotating wheel and the inner wall of the fixed shell. When the tarpaulin is stretched and unfolded, the winding roller will be driven to rotate, and then the spiral spring will be squeezed by the rotating wheel to accumulate force. When the tarpaulin is rolled up, the spiral spring will drive the winding roller to rotate in the opposite direction to roll up the tarpaulin.

[0012] The beneficial effects of the utility model are:

[0013] 1. The science propaganda vehicle will drive the outer threaded sleeve to move through the rotation of the screw, and then drive the push-pull rod to move synchronously through the support plate, so it will drive the connecting rod to stretch the tarpaulin to unfold, and then cover the top of the display screen, so as to provide shade and shelter from rain, making it convenient for propaganda personnel to stand in front of the display screen to conduct science popularization explanations.

[0014] 2. When the science propaganda vehicle is unfolded by stretching the tarpaulin, the winding roller will be driven to rotate synchronously, so it will drive the rotating wheel to rotate and compress the scroll spring to accumulate force. When the tarpaulin needs to be rolled up after use, it is only necessary to rotate the screw rod in the reverse direction to drive the connecting rod to reset. At this time, the winding roller will rotate in the reverse direction under the action of the scroll spring, and then the tarpaulin can be rolled up, making it convenient to roll up and store. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model tarpaulin before unfolding;

[0017] Figure 3 This is a schematic diagram of the structure of the utility model tarpaulin after unfolding;

[0018] Figure 4 It is a schematic cross-sectional view of the fixed shell structure of the utility model.

[0019] In the figure: 1. vehicle body; 2. display screen; 3. servo motor; 4. main pulley; 5. transmission belt; 6. outer shell; 7. mounting seat; 8. screw rod; 9. slave pulley; 10. reciprocating push-pull assembly; 11. sunshade and rain shield assembly; 12. threaded sleeve; 13. support plate; 14. push-pull rod; 15. fixed sleeve; 16. connecting rod; 17. limit rod; 18. fixed shell; 19. winding roller; 20. tarpaulin; 21. rotating wheel; 22. volute spring. 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 1-2 A popular science propaganda vehicle comprises a vehicle body 1, a display screen 2 is arranged on the side of the vehicle body 1, a servo motor 3 is fixedly installed inside the vehicle body 1, a main pulley 4 is fixedly installed on one end of the output shaft of the servo motor 3, a transmission belt 5 is sleeved on the outer side of the main pulley 4, a shell 6 is fixedly installed on the top side of the vehicle body 1 corresponding to the main pulley 4, a mounting seat 7 is fixedly installed on the top side of the vehicle body 1 corresponding to the shell 6, a screw rod 8 is rotatably connected between the shell 6 and the mounting seat 7, and a slave pulley 9 is fixedly installed on one end of the screw rod 8 that penetrates into the interior of the shell 6, and the transmission belt 5 is sleeved on the outer side of the slave pulley 9, a reciprocating push-pull assembly 10 is arranged on the top of the vehicle body 1, and a sunshade and rainproof assembly 11 is arranged on one side of the top of the vehicle body 1 close to the display screen 2. By starting the servo motor 3 to drive the main pulley 4 to rotate, the transmission belt 5 will make the slave pulley 9 drive the screw rod 8 to rotate synchronously, and then the reciprocating push-pull assembly 10 can be processed, so that the sunshade and rainproof assembly 11 is unfolded to play the role of sunshade and rainproof.

[0022] See also Figure 2-3 The reciprocating push-pull assembly 10 includes a threaded sleeve 12 threadedly sleeved on the outside of the screw rod 8, support plates 13 are fixedly installed on both sides of the threaded sleeve 12 in the horizontal direction, and push-pull rods 14 are fixedly installed on the ends of the support plates 13. A fixed sleeve 15 is fixedly installed on the top side of the vehicle body 1 near the sunshade and rain shield assembly 11. The push-pull rod 14 penetrates and is slidably inserted in the fixed sleeve 15. A connecting rod 16 is fixedly installed between the ends of the push-pull rods 14 on both sides. The screw rod 8 rotates inside the threaded sleeve 12, which will cause the threaded sleeve 12 to move along the outside of the screw rod 8, and then the push-pull rod 14 will be driven to translate through the support plates 13 on both sides, thereby driving the connecting rod 16 to unfold the sunshade and rain shield assembly 11;

[0023] See also Figure 2-3 A support is fixedly installed on the top side of the vehicle body 1, and a limit rod 17 is fixedly installed between the supports. The limit rod 17 passes through the support plate 13, and the limit rods 17 on both sides limit the support plate 13, so that the support plate 13 can move horizontally along the outer side of the limit rod 17.

[0024] See also Figure 2-4The sunshade and rainproof assembly 11 includes two fixed shells 18 fixedly mounted on the top side of the vehicle body 1, and a winding roller 19 is rotatably connected between the fixed shells 18 on both sides. A tarpaulin 20 is wound and rolled up on the outer side of the winding roller 19, and one edge of the outer circle of the tarpaulin 20 is fixedly mounted in the connecting rod 16. The tarpaulin 20 can be pulled outward by moving the connecting rod 16, and then it can be unfolded, so as to play the role of sunshade and rainproof;

[0025] See also Figure 2-4 A rotating wheel 21 is fixedly installed at one end of the winding roller 19 located inside the fixed shell 18, and a spiral spring 22 is fixedly installed between the outer side of the rotating wheel 21 and the inner wall of the fixed shell 18. When the tarpaulin 20 is stretched and unfolded, the winding roller 19 is driven to rotate, and then the spiral spring 22 is squeezed by the rotating wheel 21 to store force. When the tarpaulin 20 is rolled up, the spiral spring 22 drives the winding roller 19 to rotate in the opposite direction to roll up the tarpaulin 20.

[0026] When in use, the main pulley 4 is driven to rotate by starting the servo motor 3, and then the slave pulley 9 is driven to rotate by the transmission belt 5, so that the screw 8 is synchronously rotated, and as the screw 8 rotates, the threaded sleeve 12 on the outside thereof moves toward the side close to the display screen 2, and then the push-pull rod 14 is driven to move synchronously through the support plate 13, so that the connecting rod 16 is driven to stretch the tarpaulin 20 to unfold and cover the top of the display screen 2;

[0027] At the same time, when the tarpaulin 20 is stretched and unfolded, the winding roller 19 will be driven to rotate, and then the rotating wheel 21 will be driven to rotate to compress the spiral spring 22 to store force. Therefore, when the tarpaulin 20 is rolled up after use, it is only necessary to rotate the screw 8 in the reverse direction to drive the connecting rod 16 to reset. At this time, the winding roller 19 will rotate in the reverse direction under the action of the spiral spring 22, and then the tarpaulin 20 can be rolled up.

[0028] To sum up, the science popularization propaganda vehicle will drive the outer threaded sleeve 12 to move through the rotation of the screw rod 8, and then drive the push-pull rod 14 to move synchronously through the support plate 13, so it will drive the connecting rod 16 to stretch the tarpaulin 20 to unfold, and then cover the top of the display screen 2, so as to play the role of sunshade and rain shelter, making it convenient for propaganda personnel to stand in front of the display screen 2 to conduct science popularization explanations.

[0029] When the tarpaulin 20 is unfolded by stretching, the winding roller 19 will be driven to rotate synchronously, so the rotating wheel 21 will be driven to rotate and compress the spiral spring 22 to store force. When the tarpaulin 20 needs to be rolled up after use, it is only necessary to rotate the screw rod 8 in the reverse direction to drive the connecting rod 16 to reset. At this time, the winding roller 19 will rotate in the reverse direction under the action of the spiral spring 22, and then the tarpaulin 20 can be rolled up, thereby facilitating the rolling and storage.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The standard parts used in the utility model can all be purchased from the market, and the special-shaped parts can all be customized according to the description and the drawings.

[0032] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A science popularization vehicle, comprising a vehicle body (1), characterized in that: A display screen (2) is arranged on the side of the compartment of the vehicle body (1), a servo motor (3) is fixedly installed inside the vehicle body (1), a main pulley (4) is fixedly installed on one end of the output shaft of the servo motor (3), a transmission belt (5) is sleeved on the outer side of the main pulley (4), a shell (6) is fixedly installed on the top side of the compartment of the vehicle body (1) corresponding to the main pulley (4), a mounting seat (7) is fixedly installed on the top side of the compartment of the vehicle body (1) corresponding to the shell (6), a screw rod (8) is rotatably connected between the shell (6) and the mounting seat (7), and a slave pulley (9) is fixedly installed on one end of the screw rod (8) that penetrates into the interior of the shell (6), and the transmission belt (5) is sleeved on the outer side of the slave pulley (9), a reciprocating push-pull assembly (10) is arranged on the top of the vehicle body (1), and a sunshade and rainproof assembly (11) is arranged on one side of the top of the vehicle body (1) close to the display screen (2).

2. The science popularization vehicle according to claim 1, characterized in that: The reciprocating push-pull assembly (10) comprises a threaded sleeve (12) threadedly sleeved on the outside of the screw rod (8), support plates (13) are fixedly mounted on both sides of the threaded sleeve (12) in the horizontal direction, push-pull rods (14) are fixedly mounted on the ends of the support plates (13), a fixed sleeve (15) is fixedly mounted on the top side of the vehicle body (1) near the sunshade and rainproof assembly (11), and a connecting rod (16) is fixedly mounted between the ends of the push-pull rods (14) on both sides.

3. The science popularization vehicle according to claim 2, characterized in that: The push-pull rod (14) penetrates and is slidably inserted into the fixed sleeve (15).

4. The science popularization vehicle according to claim 3, characterized in that: A support is fixedly installed on the top side of the vehicle body (1), a limit rod (17) is fixedly installed between the supports, and the limit rod (17) passes through the support plate (13).

5. The science popularization vehicle according to claim 1, characterized in that: The sunshade and rainproof assembly (11) comprises two fixed shells (18) fixedly mounted on the top side of the vehicle body (1), a winding roller (19) is rotatably connected between the fixed shells (18) on both sides, and a tarpaulin (20) is wound and rolled up on the outer side of the winding roller (19).

6. The science popularization vehicle according to claim 5, characterized in that: An edge of the outer circle of the tarpaulin (20) is fixedly mounted inside the connecting rod (16).

7. The science popularization vehicle according to claim 6, characterized in that: A rotating wheel (21) is fixedly mounted on one end of the winding roller (19) located inside the fixed shell (18), and a spiral spring (22) is fixedly mounted between the outer side of the rotating wheel (21) and the inner wall of the fixed shell (18).

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