Automobile part practical training display device facilitating part replacement

Abstract

The invention discloses an automobile part practical training display device facilitating part replacement. The automobile part practical training display device comprises a movable containing platform and a display board fixedly installed on the movable containing platform. The device further comprises a part display mechanism, a practical training assessment mechanism and a cleaning mechanism. The part display mechanism comprises a limiting sliding rail, a placing plate, automobile parts and a clamping assembly; the practical training examination mechanism comprises a writing shell, a writing port, a magnetic writing board and a rotating assembly; the cleaning mechanism comprises a fixed cavity, a plurality of communicating round holes, a communicating assembly and an air blowing assembly, the fixed cavity is formed in the display board, and the communicating round holes are uniformly distributed in the surface of the display board. The device has the beneficial effects that different automobile parts can be conveniently displayed and taught, the teaching effect is improved, assessment can be conveniently carried out in class, manual cleaning of the automobile parts is not needed, the labor intensity of workers is reduced, the cleaning efficiency is improved, and characters written during assessment can be conveniently eliminated.

Description

Technical Field

[0001] This invention relates to the field of automotive teaching aids technology, and more specifically, to an automotive parts training and demonstration device that facilitates the replacement of parts. Background Technology

[0002] In the process of teaching automotive science, to help students gain a comprehensive understanding of the various parts of a car, the teaching process is often aided by displaying the car's components.

[0003] Existing automotive parts display devices typically fix the automotive parts directly onto display panels. Since there are many automotive parts, one display panel cannot display all of them, requiring multiple display panels. Furthermore, the parts cannot be changed for display, making it inconvenient for practical training and assessment in the classroom. After prolonged display, the surfaces of the parts will be covered with dust, requiring manual cleaning. The cleaning process is time-consuming, labor-intensive, and inefficient. Summary of the Invention

[0004] To address the above deficiencies, this invention provides an automotive parts training and demonstration device that facilitates the replacement of parts, thus solving the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A training and demonstration device for automotive parts that facilitates the replacement of parts, comprising a mobile holding platform and a display panel fixedly installed on the mobile holding platform; It also includes: parts display facilities, training and assessment facilities, and cleaning facilities; The component display mechanism includes a limiting slide rail, a placement plate, automotive components, and a locking assembly. The limiting slide rail is provided in several sets and is fixedly installed on the display plate. The placement plate is movably connected to the limiting slide rail. The automotive components are fixed to the placement plate by clamps. The locking assembly is used to position the placement plate. The training and assessment mechanism includes a writing shell, a writing opening, a magnetic writing board, and a rotating component. The writing shell is fixedly connected to the bottom of the placement board, the writing opening is located on the front of the writing shell, the magnetic writing board is located inside the writing shell, and the rotating component is used to drive the magnetic writing board to rotate. The cleaning mechanism includes a fixed cavity, a connecting hole, a connecting component, and an air blowing component. The fixed cavity is located inside the display panel, and there are several connecting holes evenly distributed on the surface of the display panel. The connecting component is used to place the panel and connect it to the fixed cavity.

[0006] As a preferred embodiment of the present invention, the engaging assembly includes connectors fixedly connected to both sides of the bottom of the placement plate, a sliding groove on the limiting slide rail that matches the connectors, a bevel at the rear end of the connectors, a limiting circular hole at the bottom of the connectors, a limiting cylinder connected to the bottom of the limiting slide rail, a limiting pin movably connected inside the limiting cylinder, the top of the limiting pin being spherical and inserted into the limiting circular hole, a telescopic spring connected between the limiting cylinder and the bottom end of the limiting pin, a fixed opening on one side of the limiting cylinder, a pull-down pin movably connected inside the fixed opening, and one end of the pull-down pin being fixedly connected to the limiting pin.

[0007] As a preferred embodiment of the present invention, the rotating assembly includes rotating rollers rotatably connected to both sides inside the writing shell, a magnetic writing board connected to the two rotating rollers, the magnetic writing board being located behind the writing opening, and a component description pasted on the magnetic writing board. A turbine is fixedly connected to one of the rotating rollers, and a worm gear is rotatably connected inside the writing shell, the worm gear meshing with the turbine gear. The front end of the worm gear extends through the writing shell, and a rotating handwheel is connected to the end of the worm gear extending out of the writing shell.

[0008] As a preferred embodiment of the present invention, the connecting component includes a plurality of spring rods fixedly installed in a fixed cavity. The positions of the spring rods correspond to the positions of the connecting circular holes. A sealing plug is fixedly connected to one end of each spring rod. The sealing plug fits into the connecting circular hole. An air blowing chamber is provided inside the placement plate. An air inlet pipe is connected to the end of the placement plate that contacts the display plate. The air inlet pipe communicates with the air blowing chamber. The outer diameter of the air inlet pipe is the same as the inner diameter of the connecting circular hole. A baffle is fixedly installed inside the air inlet pipe. A push rod is fixedly installed on the baffle. The end of the push rod away from the baffle extends out of the air inlet pipe and contacts the sealing plug. The end of the push rod that contacts the sealing plug is spherical.

[0009] As a preferred embodiment of the present invention, the air blowing assembly includes a high-pressure blower fixedly installed in a mobile holding platform, a high-pressure air pipe connecting the high-pressure blower and the fixed cavity, a heating box connected to the high-pressure air pipe, multiple electric heating tubes installed in the heating box, and a number of air outlets communicating with the air blowing chamber on the surface of the placement plate.

[0010] As a preferred embodiment of the present invention, the connecting component further includes a hot air pipe connecting the air blowing chamber and the writing shell, and a valve is fixedly connected to the hot air pipe.

[0011] As a preferred embodiment of the present invention, the mobile holding platform is provided with a storage cavity, the opening of the storage cavity is hinged to a cover plate, a hydraulic rod is hinged inside the storage cavity, one end of the hydraulic rod is hinged to the cover plate, and the cover plate is provided with a hidden handle groove.

[0012] The storage compartment makes it easy to store and retrieve display shelves and car parts that are not on display.

[0013] As a preferred embodiment of the present invention, a plurality of placement plates are provided, and different automotive parts are placed on each placement plate.

[0014] As a preferred embodiment of the present invention, a reinforcing support plate is installed on the mobile display platform. The reinforcing support plate is located behind the display panel, and a reinforcing rod is connected between the reinforcing support plate and the back of the display panel.

[0015] By reinforcing the support plates and rods to support the display panels, excessive weight on the display panels is prevented, thus avoiding bending and deformation and extending their service life.

[0016] The beneficial effects of this invention are: 1. The snap-fit ​​assembly makes it easy to assemble and disassemble the placement plate, providing a good fixation effect and preventing the placement plate from slipping out and falling, thus improving safety. It also makes it easy to replace the placement plate with different automotive parts, and the operation is convenient and quick, which facilitates the demonstration and teaching of different automotive parts and improves the teaching effect. 2. By rotating the component, the magnetic writing board can be hidden, and the descriptions of the parts on the magnetic writing board can be hidden. Students can use a heat-erasable pen to write the names and functions of the car parts on the magnetic writing board, which is convenient for assessment in class and easy to hide, thus improving efficiency. 3. High-pressure air is blown into the air chamber through the air blowing component and the connecting component. The high-pressure air blows away the dust attached to the car parts, cleaning the dust and keeping the car parts clean. No manual cleaning of the car parts is required, which reduces the intensity of manual labor and improves cleaning efficiency. 4. The high-pressure air is heated by an electric heating element and then delivered into the air blowing chamber. The hot air in the air blowing chamber is then delivered to the writing shell through a hot air pipe. The text written during the assessment is written with a heat-erasing pen. The text written with the heat-erasing pen is erased after being heated by high temperature, eliminating the need for manual erasing of the written text, reducing the intensity of manual labor, and improving teaching efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an automotive parts training and demonstration device that facilitates parts replacement, as described in this invention. Figure 2 This is a side sectional view of the mobile display platform and display panel; Figure 3 This is a diagram showing the connection status between the placement plate and the limit slide rail; Figure 4 It is an enlarged sectional view of the placement board and the writing cover; Figure 5 This is an enlarged sectional view of the locking assembly; Figure 6 This is an enlarged bottom view of the rotating component; Figure 7 This is an enlarged cross-sectional view of the connected components; Figure 8 This is an enlarged front view of the air intake pipe; Figure 9 This is an enlarged cross-sectional view of the air blowing assembly; In the diagram, 1. Mobile holding platform; 2. Display board; 3. Limiting slide rail; 4. Placement board; 5. Automotive parts; 6. Snap-fit ​​assembly; 7. Writing shell; 8. Writing opening; 9. Magnetic writing board; 10. Rotating assembly; 11. Fixed cavity; 12. Connecting hole; 13. Connecting assembly; 14. Air blowing assembly; 15. Connector; 16. Limiting hole; 17. Limiting cylinder; 18. Limiting pin; 19. Telescopic spring; 20. Fixed opening; 21. Pull-down pin; 22. Rotating roller; 23. Component descriptions; 24. Turbine; 25. Worm gear; 26. Handwheel; 27. Spring rod; 28. Sealing plug; 29. ​​Air blowing chamber; 30. Air inlet pipe; 31. Stop bar; 32. Push rod; 33. High-pressure blower; 34. High-pressure air duct; 35. Heating box; 36. Electric heating element; 37. Air outlet; 38. Hot air duct; 39. Valve; 40. Storage chamber; 41. Hinge; 42. Cover plate; 43. Hydraulic rod; 44. Concealed handle groove; 45. Reinforced support plate; 46. Reinforcing rod. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] This application provides an automotive parts training and demonstration device that facilitates the replacement of parts. Please refer to [link / reference]. Figures 1-9 It includes a mobile display platform 1 and a display panel 2 fixedly installed on the mobile display platform 1; It also includes: parts display facilities, training and assessment facilities, and cleaning facilities; The parts display mechanism includes a limiting slide rail 3, a placement plate 4, automotive parts 5, and a locking assembly 6. The limiting slide rail 3 is provided in several sets and is fixedly installed on the display plate 2. The placement plate 4 is movably connected to the limiting slide rail 3. The automotive parts 5 are fixed to the placement plate 4 by clamps. The locking assembly 6 is used to position the placement plate 4. The training and assessment mechanism includes a writing shell 7, a writing opening 8, a magnetic writing board 9, and a rotating component 10. The writing shell 7 is fixedly connected to the bottom of the placement plate 4, the writing opening 8 is located on the front of the writing shell 7, the magnetic writing board 9 is located inside the writing shell 7, and the rotating component 10 is used to drive the magnetic writing board 9 to rotate. The cleaning mechanism includes a fixed cavity 11, a connecting hole 12, a connecting component 13, and an air blowing component 14. The fixed cavity 11 is located inside the display panel 2. Several connecting holes 12 are provided and evenly distributed on the surface of the display panel 2. The connecting component 13 is used to place the plate 4 and connect it to the fixed cavity 11.

[0020] In practical applications, each placement plate 4 is fixed with different automotive parts 5 by clamps. The automotive parts 5 to be displayed and the placement plate 4 are taken out from the mobile holding platform 1, the placement plate 4 is connected to the limiting slide rail 3, and the placement plate 4 is positioned and fixed by the locking component 6 to prevent the placement plate 4 from sliding out and falling, which improves safety, facilitates the disassembly and assembly of the placement plate 4, makes it easy to replace different automotive parts 5, the operation is convenient and quick, and it is convenient to display and teach different automotive parts 5, which improves the teaching effect. When an assessment is required, the magnetic writing board 9 can be rotated by rotating component 10, which can hide the name and function description of the car part 5 marked on the magnetic writing board 9. Students can use a heat-erasing pen to write the name and function of the car part 5 on the magnetic writing board 9, which is convenient for assessment in class, facilitates the hiding operation, and improves efficiency. The fixed cavity 11 is connected to the placement plate 4 through the connecting component 13. The blowing component 14 blows high-pressure air into the fixed cavity 11. The high-pressure air in the fixed cavity 11 is then blown into the placement plate 4 through the connecting component 13. The high-pressure air is blown out from the surface of the placement plate 4. The high-pressure air blows away the dust attached to the car parts 5. The dust is cleaned and the cleanliness of the car parts 5 is maintained. There is no need for manual cleaning of the car parts 5, which reduces the intensity of manual labor and improves the cleaning efficiency.

[0021] Refer to the instruction manual appendix Figure 3 Included with instruction manual Figure 5 The engaging assembly 6 includes connectors 15 fixedly connected to both sides of the bottom of the placement plate 4. The limiting slide rail 3 is provided with a groove that matches the connectors 15. The rear end of the connectors 15 is provided with an inclined surface. The bottom of the connectors 15 is provided with a limiting round hole 16. The bottom of the limiting slide rail 3 is connected to a limiting cylinder 17. A limiting pin 18 is movably connected inside the limiting cylinder 17. The top end of the limiting pin 18 is spherical and is inserted into the limiting round hole 16. A telescopic spring 19 is connected between the limiting cylinder 17 and the bottom end of the limiting pin 18. A fixed opening 20 is provided on one side of the limiting cylinder 17. A pull-down pin 21 is movably connected inside the fixed opening 20. One end of the pull-down pin 21 is fixedly connected to the limiting pin 18.

[0022] In practical applications, during installation, the connecting pieces 15 on both sides of the bottom of the placement plate 4 are aligned with the grooves on the limiting slide rail 3. The placement plate 4 is pushed towards the display plate 2. When the inclined surface at the rear end of the connecting piece 15 contacts the limiting pin 18, the limiting pin 18 is pressed downwards. The limiting pin 18 applies pressure to the telescopic spring 19, causing the telescopic spring 19 to deform and contract. The limiting pin 18 moves downwards. When the rear end of the placement plate 4 contacts the display plate 2, the connecting piece 15 slides into place, and the limiting hole 16 is located directly above the limiting pin 18. Under the elastic force of the telescopic spring 19, the top of the limiting pin 18 rises and inserts into the limiting hole 16. Insert the connector 15 into the limiting hole 16 to fix the connector 15 and the placement plate 4, preventing the placement plate 4 from slipping out and falling, thus improving safety. When disassembly is required, the operator pulls down the pull pin 21, which slides down along the fixed opening 20. The pull pin 21 drives the limiting pin 18 to slide down, and the top of the limiting pin 18 is pulled out from the limiting hole 16. Then, pull the placement plate 4 forward to pull the connector 15 at the bottom of the placement plate 4 out from the limiting slide rail 3, which facilitates the disassembly and assembly of the placement plate 4. This makes it easy to replace the placement plate 4 with different automotive parts 5 installed. The operation is convenient and quick, which is convenient for demonstrating and teaching different automotive parts 5, thus improving the teaching effect.

[0023] Refer to the instruction manual appendix Figure 5 Included with instruction manual Figure 6 The rotating assembly 10 includes rotating rollers 22 rotatably connected to both sides inside the writing housing 7. A magnetic writing plate 9 is connected to the two rotating rollers 22 and is located behind the writing opening 8. A component description 23 is affixed to the magnetic writing plate 9. A turbine 24 is fixedly connected to one of the rotating rollers 22. A worm gear 25 is rotatably connected inside the writing housing 7. The worm gear 25 and the turbine 24 mesh with each other. The front end of the worm gear 25 extends through the writing housing 7. A rotating handwheel 26 is connected to one end of the worm gear 25 extending out of the writing housing 7.

[0024] In practical application, each placement board 4 has a magnetic writing board 9 with a corresponding part description 23 for the automotive part 5 pasted on it. During demonstration and teaching, the part description 23 on the magnetic writing board 9 is located at the writing opening 8, making it easy for students to understand. When students need to be assessed, the handwheel 26 is turned to rotate the worm gear 25. The rotation of the worm gear 25 drives the turbine 24 to rotate the rotating roller 22, which in turn rotates the magnetic writing board 9, hiding the part description 23 on the magnetic writing board 9. Students use a heat-erasable pen to write the name and function of the automotive part 5 on the magnetic writing board 9, which facilitates assessment in class and the hiding operation, improving efficiency.

[0025] Refer to the instruction manual appendix Figure 2 Instruction manual attached Figure 7 Included with instruction manual Figure 8 The connecting component 13 includes several spring rods 27 fixedly installed in the fixed cavity 11. The positions of the spring rods 27 correspond to the positions of the connecting circular holes 12. One end of the spring rod 27 is fixedly connected to a sealing plug 28, which fits into the connecting circular holes 12. The placement plate 4 has an air blowing chamber 29 inside. The end of the placement plate 4 that contacts the display plate 2 is connected to an air inlet pipe 30, which communicates with the air blowing chamber 29. The outer diameter of the air inlet pipe 30 is the same as the inner diameter of the connecting circular holes 12. A baffle 31 is fixedly installed inside the air inlet pipe 30, and a push rod 32 is fixedly installed on the baffle 31. The end of the push rod 32 away from the baffle 31 extends out of the air inlet pipe 30 and contacts the sealing plug 28. The end of the push rod 32 that contacts the sealing plug 28 is spherical.

[0026] In practical applications, when installing the placement plate 4, the air inlet pipe 30 on the placement plate 4 is inserted into the connecting round hole 12. The push rod 32 contacts the sealing plug 28, and the push rod 32 pushes the sealing plug 28 to move backward. The sealing plug 28 applies pressure to the spring rod 27. The extension and contraction of the spring rod 27 allows the air inlet pipe 30 to fully enter the connecting round hole 12. The air inlet pipe 30 connects the fixed cavity 11 and the blowing cavity 29. The connecting round hole 12, where the air inlet pipe 30 is not inserted, is sealed by the sealing plug 28. When the placement plate 4 is removed, the sealing plug 28 returns to its original position and seals the connecting round hole 12 under the action of the spring rod 27, preventing air leakage during blowing, avoiding reduction in wind speed and wind pressure, and avoiding affecting the dust removal effect.

[0027] Refer to the instruction manual appendix Figure 2 Included with instruction manual Figure 9 The air blowing assembly 14 includes a high-pressure blower 33 fixedly installed in the mobile holding platform 1. A high-pressure air pipe 34 is connected between the high-pressure blower 33 and the fixed cavity 11. A heating box 35 is connected to the high-pressure air pipe 34. Multiple electric heating tubes 36 are installed in the heating box 35. The surface of the placement plate 4 is provided with several air outlet holes 37 that are connected to the air blowing chamber 29.

[0028] In practical applications, when dust removal is required, the high-pressure blower 33 starts working. The high-pressure air generated by the high-pressure blower 33 enters the fixed cavity 11 through the high-pressure air pipe 34 and the heating box 35. The high-pressure air in the fixed cavity 11 enters the blowing chamber 29 through the air inlet pipe 30. The high-pressure air in the blowing chamber 29 is blown upward through the air outlet 37. The high-pressure air blows onto the car parts 5, removing the dust attached to the car parts 5. The dust is cleaned, maintaining the cleanliness of the car parts 5. No manual cleaning of the car parts 5 is required, reducing the intensity of manual labor and improving cleaning efficiency.

[0029] Refer to the instruction manual appendix Figure 4The connecting component 13 also includes a hot air pipe 38 connecting the air blowing chamber 29 and the writing shell 7, and a valve 39 is fixedly connected to the hot air pipe 38.

[0030] In practical application, after the assessment, the electric heating tube 36 and valve 39 are opened, and high-pressure air enters the heating box 35. The high-pressure air is heated by the electric heating tube 36, and the hot air is then delivered into the air blowing chamber 29. The hot air in the air blowing chamber 29 is delivered to the writing shell 7 through the hot air pipe 38. The text written during the assessment is written with a heat-erasing pen. The text written with the heat-erasing pen is erased after being heated by high temperature, eliminating the need for manual erasure of the written text, reducing the intensity of manual labor, and improving teaching efficiency.

[0031] Refer to the instruction manual appendix Figure 2 The mobile holding platform 1 is provided with a storage cavity 40. The opening of the storage cavity 40 is hinged to a cover plate 42 via a hinge 41. A hydraulic rod 43 is hinged inside the storage cavity 40. One end of the hydraulic rod 43 is hinged to the cover plate 42. The cover plate 42 is provided with a hidden handle groove 44.

[0032] In practical applications, the undisplayed placement plate 4 and automotive parts 5 are stored in the storage cavity 40. The cover plate 42 is flipped upwards by the hidden handle groove 44, and the cover plate 42 is supported by the hydraulic rod 43, making it easy to store and retrieve the placement plate 4 and automotive parts 5.

[0033] Refer to the instruction manual appendix Figure 2 A reinforcing support plate 45 is installed on the mobile display platform 1. The reinforcing support plate 45 is located behind the display plate 2. A reinforcing rod 46 is connected to the back of the reinforcing support plate 45 and the display plate 2.

[0034] In practical applications, the display board 2 is supported by the reinforcing support plate 45 and the reinforcing rod 46 to avoid excessive weight on the display board 2, prevent the display board 2 from bending and deforming, and improve its service life.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. An automotive parts training and display device that facilitates the replacement of parts, comprising a mobile holding platform (1) and a display board (2) fixedly installed on the mobile holding platform (1). Its features are, Also includes: Parts display facility, training and assessment facility, and cleaning facility; The component display mechanism includes a limiting slide rail (3), a placement plate (4), automotive components (5), and a locking assembly (6). The limiting slide rail (3) is provided in several sets and is fixedly installed on the display plate (2). The placement plate (4) is movably connected to the limiting slide rail (3). The automotive components (5) are fixed on the placement plate (4) by clamps. The locking assembly (6) is used to position the placement plate (4). The training and assessment mechanism includes a writing shell (7), a writing opening (8), a magnetic writing board (9), and a rotating component (10). The writing shell (7) is fixedly connected to the bottom of the placement plate (4), the writing opening (8) is located on the front of the writing shell (7), the magnetic writing board (9) is located inside the writing shell (7), and the rotating component (10) is used to drive the magnetic writing board (9) to rotate. The cleaning mechanism includes a fixed cavity (11), a connecting hole (12), a connecting component (13), and an air blowing component (14). The fixed cavity (11) is located inside the display panel (2). The connecting hole (12) has several holes and is evenly distributed on the surface of the display panel (2). The connecting component (13) is used to place the plate (4) and connect it to the fixed cavity (11).

2. The automotive parts training and demonstration device for easy replacement of parts according to claim 1, characterized in that, The engaging assembly (6) includes a connector (15) fixedly connected to both sides of the bottom of the placement plate (4). The limiting slide rail (3) is provided with a groove that matches the connector (15). The rear end of the connector (15) is provided with an inclined surface. The bottom of the connector (15) is provided with a limiting round hole (16). The bottom of the limiting slide rail (3) is connected to a limiting cylinder (17). A limiting pin (18) is movably connected inside the limiting cylinder (17). The top of the limiting pin (18) is spherical and inserted into the limiting round hole (16). A telescopic spring (19) is connected between the bottom end of the limiting cylinder (17) and the limiting pin (18). A fixed opening (20) is provided on one side of the limiting cylinder (17). A pull-down pin (21) is movably connected inside the fixed opening (20). One end of the pull-down pin (21) is fixedly connected to the limiting pin (18).

3. The automotive parts training and demonstration device for easy replacement of parts according to claim 1, characterized in that, The rotating assembly (10) includes rotating rollers (22) rotatably connected to both sides inside the writing shell (7), a magnetic writing board (9) connected to the two rotating rollers (22), the magnetic writing board (9) being located behind the writing opening (8), and a component description (23) pasted on the magnetic writing board (9). A turbine (24) is fixedly connected to one side of the rotating roller (22), and a worm gear (25) is rotatably connected inside the writing shell (7). The worm gear (25) meshes with the turbine gear (24), and the front end of the worm gear (25) extends through the writing shell (7). A rotating handwheel (26) is connected to one end of the worm gear (25) extending out of the writing shell (7).

4. The automotive parts training and demonstration device for easy replacement of parts according to claim 1, characterized in that, The connecting component (13) includes several spring rods (27) fixedly installed in the fixed cavity (11). The position of the spring rods (27) corresponds to the position of the connecting round hole (12). One end of the spring rod (27) is fixedly connected to a sealing plug (28). The sealing plug (28) fits into the connecting round hole (12). The placement plate (4) is provided with an air blowing chamber (29). The end of the placement plate (4) that contacts the display plate (2) is connected to an air inlet pipe (30). The air inlet pipe (30) is connected to the air blowing chamber (29). The outer diameter of the air inlet pipe (30) is the same as the inner diameter of the connecting round hole (12). A baffle (31) is fixedly installed inside the air inlet pipe (30). A push rod (32) is fixedly installed on the baffle (31). The end of the push rod (32) away from the baffle (31) extends out of the air inlet pipe (30) and contacts the sealing plug (28). The end of the push rod (32) that contacts the sealing plug (28) is spherical.

5. The automotive parts training and demonstration device for easy parts replacement according to claim 4, characterized in that, The air blowing assembly (14) includes a high-pressure blower (33) fixedly installed in the mobile holding platform (1), a high-pressure air pipe (34) connecting the high-pressure blower (33) and the fixed cavity (11), a heating box (35) connected to the high-pressure air pipe (34), a number of electric heating tubes (36) installed in the heating box (35), and a number of air outlets (37) connected to the air blowing chamber (29) on the surface of the placement plate (4).

6. The automotive parts training and demonstration device for easy parts replacement according to claim 4, characterized in that, The connecting component (13) also includes a hot air pipe (38) connecting the air blowing chamber (29) and the writing shell (7), and a valve (39) is fixedly connected to the hot air pipe (38).

7. The automotive parts training and demonstration device for easy replacement of parts according to claim 1, characterized in that, The mobile holding platform (1) is provided with a storage cavity (40). The opening of the storage cavity (40) is hinged to a cover plate (42) via a hinge (41). A hydraulic rod (43) is hinged inside the storage cavity (40). One end of the hydraulic rod (43) is hinged to the cover plate (42). The cover plate (42) is provided with a hidden handle groove (44).

8. The automotive parts training and demonstration device for easy replacement of parts according to claim 1, characterized in that, The placement plate (4) is provided in several places, and different automotive parts (5) are placed on each placement plate (4).

9. The automotive parts training and demonstration device for easy parts replacement according to claim 1, characterized in that, The mobile display platform (1) is equipped with a reinforcing support plate (45), which is located behind the display board (2). A reinforcing rod (46) is connected to the back of the reinforcing support plate (45) and the display board (2).

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