A tailgate projection device

Abstract

The application provides a tailgate projection device, which comprises a tailgate mounting seat, a rotating seat, a base and a supporting seat. The tailgate mounting seat is used for mounting on a tailgate of a vehicle. The tailgate mounting seat is provided with a rotating shaft part. The rotating seat is rotatably sleeved on the rotating shaft part and can rotate annularly along the axis of the rotating shaft part. The base is arranged on one side of the rotating seat. The base is connected to the rotating seat through a universal ball head and can move in different directions relative to the rotating seat. The supporting seat is detachably connected to the base and can lock or release the base. The supporting seat is used for supporting a projection device. The supporting seat realizes rotation and universal movement through the rotating seat and the supporting seat, so that the projection device realizes rotation and universal movement. The supporting seat cannot rotate and move universally, the flexibility of the tailgate projection device is improved, and meanwhile, the supporting seat can be connected to or separated from the base, so that the loading and unloading convenience of the projection device is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of tailgate projection devices, and in particular to a tailgate projection device. Background Technology

[0002] With the development of technology, tailgate projection devices are being used in automobiles. These devices support the projection equipment, allowing it to be fixed to the tailgate of the vehicle. In existing technology, tailgate projection devices include a tailgate mounting base and a support base. The support base is connected to the tailgate mounting base, which is used to install the device onto the tailgate of the vehicle. The support base supports the projection equipment. However, the support base cannot rotate or move in any direction, resulting in poor flexibility of existing tailgate projection devices. Utility Model Content

[0003] The purpose of this utility model is to provide a tailgate projection device. A tailgate mounting base is used for installation on the tailgate of a car. The tailgate mounting base has a rotating shaft. A rotating seat is rotatably fitted onto the rotating shaft and can rotate in a ring along the axis of the rotating shaft. A base is located on one side of the rotating seat and is universally connected to the rotating seat via a universal ball joint, allowing it to move relative to the rotating seat in different directions. A support base is detachably connected to the base and can lock or release the base. The support base supports the projection device, allowing the support base to rotate and move in all directions via the rotating seat and the support base, thereby enabling the projection device to rotate and move in all directions. This avoids situations where the support base cannot rotate and move in all directions, improving the flexibility of the tailgate projection device. Simultaneously, the support base can be connected to or detached from the base, improving the ease of mounting and dismounting the projection device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tailgate projection device, comprising:

[0005] A tailgate mounting bracket for mounting on the tailgate of a vehicle; the tailgate mounting bracket is provided with a pivot portion;

[0006] A rotating seat is rotatably fitted onto the rotating shaft portion and is capable of rotating in a ring along the axis of the rotating shaft portion;

[0007] A base is disposed on one side of the rotating seat. The base is universally connected to the rotating seat via a universal ball joint and can move relative to the rotating seat in different directions.

[0008] A support base, detachably connected to the base and capable of locking or releasing the base, the support base being used to support the projection device.

[0009] Optionally, the tailgate mounting base is provided with a first mounting part and a second mounting part;

[0010] The first mounting part is mounted on the third mounting part of the tailgate and is stationary relative to the tailgate;

[0011] The second mounting portion is disposed on one side of the first mounting portion and is located on the outer periphery of the rotating shaft portion;

[0012] The second mounting part moves along the axis of the rotating shaft and can gradually approach the first mounting part, so that the second mounting part is mounted on the first mounting part and clamps the third mounting part of the tailgate with the first mounting part.

[0013] Optionally, the third mounting part of the tailgate is a corresponding hollow groove, or the third mounting part of the tailgate is an emergency escape opening of the tailgate.

[0014] The first mounting part is provided with a guide arm, which protrudes outward from the side wall of the first mounting part toward the second mounting part;

[0015] The second mounting part is provided with a guide groove, which is used for the insertion of the guide arm, so that the guide groove and the guide arm form a guide connection structure.

[0016] Optionally, the rotating shaft is provided with external threads;

[0017] The tailgate projection device also includes a sleeve, which is located below the second mounting part and contacts the second mounting part; the sleeve is provided with an internal thread, and the internal thread and the external thread form a threaded connection structure.

[0018] The sleeve rotates relative to the pivot and moves along the axis of the pivot to move the second mounting part closer to or away from the first mounting part; the peripheral sidewall of the sleeve serves as the user's operating sidewall.

[0019] Optionally, the rotating seat is provided with a horizontal rotating part, which is located on the outer periphery of the rotating shaft and near the end of the rotating shaft that is away from the first mounting part; the horizontal rotating part rotates relative to the rotating shaft and can rotate 360° along the axis of the rotating shaft.

[0020] Optionally, the rotating seat is connected to a first rotating knob, which is arranged relative to the horizontal rotating part;

[0021] The first rotating knob is rotatably connected to the rotating base, and the operating end of the first rotating knob is located on the outer side of the rotating base; the contact end of the first rotating knob is located on the outer periphery of the horizontal rotating part.

[0022] When the first rotating knob rotates, the contact end of the first rotating knob gradually approaches the peripheral wall of the horizontal rotating part and is able to contact the peripheral wall of the horizontal rotating part, so that the first rotating knob applies a contact damping force to the horizontal rotating part to lock the horizontal rotating part.

[0023] Optionally, the base is connected to the universal ball joint, and the universal ball joint is located near the end of the rotating seat that faces away from the rotating shaft.

[0024] The universal ball joint is inserted into the rotating seat and moves universally relative to the rotating seat;

[0025] The rotating base is connected to a second rotating knob, which is arranged relative to the universal ball joint; the second rotating knob is rotatably connected to the rotating base, and the operating end of the second rotating knob is located on the outer side of the rotating base; the contact end of the second rotating knob is located on the outer periphery of the universal ball joint.

[0026] When the second rotating knob rotates, the contact end of the second rotating knob gradually approaches the peripheral wall of the universal ball joint and is able to contact the peripheral wall of the universal ball joint, so that the second rotating knob applies a contact damping force to the universal ball joint to lock the universal ball joint.

[0027] Optionally, the base has a groove, and the support is inserted into the groove and locked to the base.

[0028] Optionally, the side wall of the support base is provided with a snap-fit ​​groove;

[0029] The base is connected to a locking arm, which is movably connected to the base. The operating end of the locking arm is located on the outside of the base and can be pressed by the user. The locking end of the locking arm engages or disengages from the latching groove as the locking arm moves, thereby locking or disengaging the support seat from the base.

[0030] An elastic element is provided between the locking arm and the base. The two ends of the elastic element contact the locking arm and the base. The locking arm moves relative to the base under the elastic force of the elastic element.

[0031] Optionally, the tailgate projection device further includes a projection component, which is disposed on one side of the projection device and directly facing the projection end of the projection device; the projection component is located in the interior space or the exterior space of the vehicle.

[0032] The projection assembly includes two suspension mounts and a screen. The two ends of the screen are respectively connected to the corresponding suspension mounts. One of the suspension mounts can be connected to the interior side wall of the vehicle or to a suspension component located outside the vehicle.

[0033] The screen is positioned directly opposite the projection end of the projection device and is used by the projection device to project images.

[0034] Compared with the prior art, the beneficial effects of this utility model are:

[0035] This utility model provides a tailgate projection device. A tailgate mounting base is used for installation on the tailgate of a car. The tailgate mounting base has a rotating shaft. A rotating seat is rotatably fitted onto the rotating shaft and can rotate in a ring along the axis of the rotating shaft. A base is disposed on one side of the rotating seat and is universally connected to the rotating seat through a universal ball joint, and can move relative to the rotating seat in different directions. A support base is detachably connected to the base and can lock or release the base. The support base is used to support the projection device, so that the support base can rotate and move universally through the rotating seat and the support base, thereby realizing the rotation and universal movement of the projection device. This avoids the support base being unable to rotate and move universally, improving the flexibility of the tailgate projection device. At the same time, the support base can be connected to or detached from the base, improving the convenience of loading and unloading the projection device. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0038] Figure 1 A schematic diagram of a tailgate projection device according to an embodiment of this application is shown.

[0039] Figure 2 A side view of a tailgate projection device according to an embodiment of this application is shown.

[0040] Figure 3 A front view of a tailgate projection device according to an embodiment of this application is shown.

[0041] Figure 4 A cross-sectional view of the pivot portion and sleeve of a tailgate projection device according to an embodiment of this application is shown.

[0042] Figure 5A schematic diagram of the internal structure of the rotating seat of the tailgate projection device according to an embodiment of this application is shown.

[0043] Figure 6 A schematic diagram of the internal structure of the rotating seat of the tailgate projection device according to one embodiment of this application is shown in another state.

[0044] Figure 7 A schematic diagram of the base of a tailgate projection device according to an embodiment of this application is shown.

[0045] Figure 8 A schematic diagram of a support base for a tailgate projection device according to an embodiment of this application is shown.

[0046] Figure 9 A diagram showing the usage state of a tailgate projection device according to an embodiment of this application is illustrated.

[0047] Figure 10 Another usage state diagram of the tailgate projection device according to one embodiment of this application is shown.

[0048] Figure Labels

[0049] 100. Tailgate projection device;

[0050] 10. Tailgate mounting base; 11. Rotating shaft; 111. External thread; 12. First mounting part; 121. Guide arm; 13. Second mounting part; 13a. Guide groove;

[0051] 20. Rotating seat; 21. Horizontal rotating part; 22. First rotating knob; 23. Second rotating knob;

[0052] 30. Base; 30a. Groove; 31. Universal ball joint; 32. Snap-fit ​​support arm; 33. Elastic element;

[0053] 40. Support base; 40a. Snap-on slot;

[0054] 50. Sleeve; 51. Internal thread;

[0055] 60. Projection assembly; 61. Mounting bracket; 62. Screen;

[0056] 200. Projection equipment. Detailed Implementation

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0058] Please refer to the attached document. Figures 1-10 This utility model provides a tailgate projection device 100, which is applied to automobiles and is used to support a projection device 200.

[0059] Please refer to the attached document. Figures 1-10 In this embodiment, the tailgate projection device 100 includes a tailgate mounting seat 10, a rotating seat 20, a base 30, and a support seat 40. The tailgate mounting seat 10 is used to install on the tailgate of a car. The tailgate mounting seat 10 is provided with a rotating shaft portion 11. The rotating seat 20 is rotatably sleeved on the rotating shaft portion 11 and can rotate in a ring along the axis of the rotating shaft portion 11. The base 30 is disposed on one side of the rotating seat 20 and is universally connected to the rotating seat 20 through a universal ball joint 31, and can move relative to the rotating seat 20 in different directions. The support base 40 is detachably connected to the base 30 and can lock or release the base 30. The support base 40 is used to support the projection device 200 so that the support base 40 can rotate and move in all directions through the rotating base 20, thereby enabling the projection device 200 to rotate and move in all directions. This avoids the support base 40 being unable to rotate and move in all directions, improving the flexibility of the tailgate projection device 100. At the same time, the support base 40 can be connected to or detached from the base 30, improving the ease of loading and unloading the projection device 200.

[0060] Please refer to the attached document. Figures 1-10 In this embodiment of the application, the tailgate mounting seat 10 is used to install on the tailgate of the car so that the tailgate projection device 100 can be fixedly connected to the tailgate of the car through the tailgate mounting seat 10, thus ensuring the fixed position of the tailgate projection device 100. The tailgate mounting seat 10 is provided with a rotating shaft 11; the rotating shaft 11 is arranged in the vertical direction.

[0061] The rotating seat 20 is rotatably fitted onto the rotating shaft 11 and can rotate in a ring along the axis of the rotating shaft 11 to facilitate adjustment of the rotational position of the rotating seat 20 relative to the rotating shaft 11. The base 30 is disposed on the lower side of the rotating seat 20 and is universally connected to the rotating seat 20 via a universal ball joint 31, and can move relative to the rotating seat 20 in different directions to facilitate adjustment of the position of the base 30 relative to the rotating seat 20.

[0062] The support base 40 is detachably connected to the base 30 and can lock or release the base 30. The support base 40 is used to support the projection device 200 so that the support base 40 can rotate and move in all directions through the rotating base 20, thereby enabling the projection device 200 to rotate and move in all directions. This avoids the support base 40 being unable to rotate and move in all directions, improving the flexibility of the tailgate projection device 100. At the same time, the support base 40 can be connected to or detached from the base 30, improving the ease of loading and unloading the projection device 200.

[0063] Please refer to the attached document. Figures 1-3 In this embodiment, the tailgate mounting seat 10 is provided with a first mounting portion 12 and a second mounting portion 13. The first mounting portion 12 is mounted on the third mounting portion of the tailgate and is stationary relative to the tailgate. The second mounting portion 13 is disposed on the lower side of the first mounting portion 12 and is located on the outer periphery of the pivot portion 11. The second mounting portion 13 moves along the axis of the pivot portion 11 and can gradually approach the first mounting portion 12, so that the second mounting portion 13 is mounted on the first mounting portion 12 and clamps the third mounting portion of the tailgate with the first mounting portion 12, so that the first mounting portion 12 and the second mounting portion 13 respectively contact the upper surface and the lower surface of the third mounting portion of the tailgate, thereby facilitating the tailgate mounting seat 10 to clamp the third mounting portion of the tailgate through the first mounting portion 12 and the second mounting portion 13. When the second mounting portion 13 moves along the axis of the pivot portion 11 and can gradually move away from the first mounting portion 12, it facilitates the first mounting portion 12 and the second mounting portion 13 to disengage from the third mounting portion of the tailgate, thereby facilitating the tailgate mounting seat 10 to disengage from the third mounting portion of the tailgate.

[0064] Please refer to the attached document. Figures 1-3 In this embodiment, the third mounting portion of the tailgate is a corresponding hollow groove, or the third mounting portion of the tailgate is an emergency escape opening of the tailgate; the first mounting portion 12 is provided with a guide arm 121, which protrudes outward from the side wall of the first mounting portion 12 toward the second mounting portion 13; the second mounting portion 13 is provided with a guide groove 13a, which is used for the guide arm 121 to be inserted, so that the guide groove 13a and the guide arm 121 form a guide connection structure, so that the second mounting portion 13 can be connected to the first mounting portion 12 under the guidance of the guide groove 13a and the guide arm 121, ensuring the connection position of the second mounting portion 13 relative to the first mounting portion 12, and avoiding deviation of the clamping position of the second mounting portion 13 and the first mounting portion 12 relative to the third mounting portion of the tailgate.

[0065] Please refer to the attached document. Figures 1-4In this embodiment, the pivot 11 is provided with an external thread 111; the tailgate projection device 100 further includes a sleeve 50, which is located below the second mounting portion 13 and contacts the second mounting portion 13; the sleeve 50 is provided with an internal thread 51, which is threadedly connected to the external thread 111; the sleeve 50 rotates relative to the pivot 11 and moves along the axis of the pivot 11 to drive the second mounting portion 13 closer to or away from the first mounting portion 12; the peripheral sidewall of the sleeve 50 serves as the user's operating sidewall. At this time, when the user operates the sleeve 50 to rotate upward relative to the pivot 11, the sleeve 50 drives the second mounting portion 13 closer to the first mounting portion 12, thereby facilitating the sleeve 50 to apply a contact force to the second mounting portion 13, ensuring the clamping force between the second mounting portion 13 and the first mounting portion 12 relative to the third mounting portion of the tailgate, and preventing the second mounting portion 13 and the first mounting portion 12 from accidentally disengaging from the third mounting portion of the tailgate. When the user operates the sleeve 50 to rotate downward relative to the rotating shaft 11, the sleeve 50 drives the second mounting part 13 away from the first mounting part 12, thereby facilitating the second mounting part 13 to disengage from the first mounting part 12 from the third mounting part of the tailgate.

[0066] Please refer to the attached document. Figures 1-6 In this embodiment, the rotating seat 20 is provided with a horizontal rotating part 21, which is located on the outer periphery of the rotating shaft part 11 and close to the end of the rotating shaft part 11 that is away from the first mounting part 12. The horizontal rotating part 21 rotates relative to the rotating shaft part 11 and can rotate 360° along the axis of the rotating shaft part 11 to adjust the horizontal angle of the horizontal rotating part 21 relative to the rotating shaft part 11, so that the support seat 40 can rotate with the base 30 as the horizontal rotating part 21 rotates.

[0067] Please refer to the attached document. Figures 1-6 In this embodiment, the rotating seat 20 is connected to a first rotating knob 22, which is arranged relative to the horizontal rotating part 21. The first rotating knob 22 is rotatably connected to the rotating seat 20 to adjust its position relative to the rotating seat 20. Optionally, the first rotating knob 22 can rotate relative to the rotating seat 20 by means of a threaded connection. The operating end of the first rotating knob 22 is located on the outer side of the rotating seat 20. The contact end of the first rotating knob 22 is located on the outer periphery of the horizontal rotating part 21. When the first rotating knob 22 rotates, the contact end of the first rotating knob 22 gradually approaches the peripheral wall of the horizontal rotating part 21 and can contact the peripheral wall of the horizontal rotating part 21, so that the first rotating knob 22 applies a contact damping force to the horizontal rotating part 21 to lock the horizontal rotating part 21, so as to adjust or lock the rotation of the horizontal rotating part 21 relative to the rotating shaft part 11 by means of the first rotating knob 22.

[0068] Please refer to the attached document. Figures 1-6In this embodiment, the base 30 is connected to a universal ball joint 31, which is located near the end of the rotating seat 20 facing away from the rotating shaft 11. The universal ball joint 31 is inserted into the rotating seat 20 and moves in a universal direction relative to the rotating seat 20, so that the base 30 can move in a universal direction relative to the rotating seat 20 through the universal ball joint 31, thereby facilitating the support seat 40 to move in a universal direction relative to the rotating seat 20 through the base 30 along with the universal ball joint 31; so as to realize the support seat 40 moving in different directions.

[0069] A second rotating knob 23 is connected to the rotating base 20 and is arranged relative to the universal ball joint 31. The second rotating knob 23 is rotatably connected to the rotating base 20 to adjust its position relative to the rotating base 20. Optionally, the second rotating knob 23 can rotate relative to the rotating base 20 via a threaded connection. The second rotating knob 23 is staggered from the first rotating knob 22, with its operating end located on the outside of the rotating base 20. The contact end of the second rotating knob 23 is located on the outer periphery of the universal ball joint 31. When the second rotating knob 23 rotates, its contact end gradually approaches and contacts the peripheral wall of the universal ball joint 31, applying a contact damping force to the universal ball joint 31 to lock it. This allows the movement or locking of the universal ball joint 31 relative to the rotating base 20 to be adjusted via the second rotating knob 23.

[0070] Please refer to the attached document. Figures 7-8 In this embodiment of the application, the base 30 is provided with a groove 30a, which serves as the internal space of the base 30. The support 40 is inserted into the groove 30a and locked to the base 30, so that the support 40 can be locked to the base 30 through the space of the groove 30a. At the same time, the support 40 makes full use of the space of the groove 30a, reducing the space occupied between the support 40 and the base 30.

[0071] Please refer to the attached document. Figures 7-8 In this embodiment, the side wall of the support base 40 is provided with a snap-fit ​​groove 40a; the base 30 is connected to a snap-fit ​​arm 32, which is movably connected to the base 30 to facilitate adjustment of the position of the snap-fit ​​arm 32 relative to the base 30. The operating end of the snap-fit ​​arm 32 is located on the outside of the base 30 and can be pressed by the user; the snap-fit ​​end of the snap-fit ​​arm 32 snaps into or disengages from the snap-fit ​​groove 40a as the snap-fit ​​arm 32 moves, so that the support base 40 is locked or disengaged from the base 30; so that the support base 40 can be locked or disengaged from the base 30 by the engagement of the snap-fit ​​arm 32 with the snap-fit ​​groove 40a, thereby realizing a detachable connection between the support base 40 and the base 30.

[0072] An elastic element 33 is provided between the locking arm 32 and the base 30. Both ends of the elastic element 33 contact the locking arm 32 and the base 30. Under the elastic force of the elastic element 33, the locking arm 32 moves relative to the base 30, allowing it to move relative to the base 30 when pressed by the user. This facilitates the locking arm 32 disengaging from the latching groove 40a of the support seat 40, enabling the support seat 40 to detach from the base 30. When no external force is applied, the locking arm 32 returns to its original position under the elastic force of the elastic element 33, ensuring that the locking arm 32 remains engaged with the latching groove 40a of the support seat 40, thus allowing the support seat 40 to connect to the base 30.

[0073] Please refer to the attached document. Figure 10 In this embodiment, the tailgate projection device 100 further includes a projection component 60, which is disposed on one side of the projection device 200 and directly facing the projection end of the projection device 200. The projection component 60 is located in the interior space or exterior space of the vehicle. The projection component 60 includes two suspension seats 61 and a screen 62. The two ends of the screen 62 are respectively connected to the corresponding suspension seats 61. One suspension seat 61 can be connected to the interior side wall of the vehicle or a suspension component outside the vehicle. This allows the projection component 60 to be fixedly connected to the interior side wall of the vehicle or a suspension component outside the vehicle through the suspension seats 61. The screen 62 is directly facing the projection end of the projection device 200 and is projected by the projection device 200 so that users in the vehicle can view the image projected by the projection device 200.

[0074] Compared with the prior art, the beneficial effects of this utility model are:

[0075] This utility model provides a tailgate projection device 100. A tailgate mounting base 10 is used for installation on the tailgate of a car. The tailgate mounting base 10 is provided with a rotating shaft 11. A rotating seat 20 is rotatably sleeved on the rotating shaft 11 and can rotate in a ring along the axis of the rotating shaft 11. A base 30 is disposed on one side of the rotating seat 20 and is universally connected to the rotating seat 20 through a universal ball joint 31, and can move relative to the rotating seat 20 in different directions. A support base 40 is detachably connected to the base 30 and can lock or release the base 30. The support base 40 is used to support the projection device 200 so that the support base 40 can rotate and move universally through the rotating seat 20 and the support base 40, thereby realizing the rotation and universal movement of the projection device 200. This avoids the support base 40 being unable to rotate and move universally, improving the flexibility of the tailgate projection device 100. At the same time, the support base 40 can be connected to or detached from the base 30, improving the ease of installation and removal of the projection device 200.

[0076] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0077] In the description of this application, the terms "" and "" 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 with "" and "" may explicitly or implicitly include one or more features.

[0078] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A tailgate projection device, characterized in that, include: A tailgate mounting bracket for mounting on the tailgate of a vehicle; the tailgate mounting bracket is provided with a pivot portion; A rotating seat is rotatably fitted onto the rotating shaft portion and is capable of rotating in a ring along the axis of the rotating shaft portion; A base is disposed on one side of the rotating seat. The base is universally connected to the rotating seat via a universal ball joint and can move relative to the rotating seat in different directions. A support base, detachably connected to the base and capable of locking or releasing the base, the support base being used to support the projection device; The tailgate mounting bracket is provided with a first mounting part and a second mounting part; The first mounting part is mounted on the third mounting part of the tailgate and is stationary relative to the tailgate; The second mounting portion is disposed on one side of the first mounting portion and is located on the outer periphery of the rotating shaft portion; The second mounting part moves along the axis of the rotating shaft and can gradually approach the first mounting part, so that the second mounting part is mounted on the first mounting part and clamps the third mounting part of the tailgate with the first mounting part.

2. The tailgate projection device according to claim 1, characterized in that, The third mounting part of the tailgate is a corresponding hollow groove, or the third mounting part of the tailgate is an emergency escape opening of the tailgate. The first mounting part is provided with a guide arm, which protrudes outward from the side wall of the first mounting part toward the second mounting part; The second mounting part is provided with a guide groove, which is used for the insertion of the guide arm, so that the guide groove and the guide arm form a guide connection structure.

3. The tailgate projection device according to claim 1, characterized in that, The shaft is provided with external threads; The tailgate projection device also includes a sleeve, which is located below the second mounting part and contacts the second mounting part; the sleeve is provided with an internal thread, and the internal thread and the external thread form a threaded connection structure. The sleeve rotates relative to the pivot and moves along the axis of the pivot to move the second mounting part closer to or away from the first mounting part; the peripheral sidewall of the sleeve serves as the user's operating sidewall.

4. The tailgate projection device according to claim 2, characterized in that, The rotating seat is provided with a horizontal rotating part, which is located on the outer periphery of the rotating shaft and close to the end of the rotating shaft that is away from the first mounting part; the horizontal rotating part rotates relative to the rotating shaft and can rotate 360° along the axis of the rotating shaft.

5. The tailgate projection device according to claim 4, characterized in that, The rotating base is connected to a first rotating knob, which is arranged relative to the horizontal rotating part. The first rotating knob is rotatably connected to the rotating base, and the operating end of the first rotating knob is located on the outer side of the rotating base; the contact end of the first rotating knob is located on the outer periphery of the horizontal rotating part. When the first rotating knob rotates, the contact end of the first rotating knob gradually approaches the peripheral wall of the horizontal rotating part and is able to contact the peripheral wall of the horizontal rotating part, so that the first rotating knob applies a contact damping force to the horizontal rotating part to lock the horizontal rotating part.

6. The tailgate projection device according to claim 1, characterized in that, The base is connected to the universal ball joint, which is located near the end of the rotating seat that faces away from the rotating shaft. The universal ball joint is inserted into the rotating seat and moves universally relative to the rotating seat; The rotating base is connected to a second rotating knob, which is arranged relative to the universal ball joint; the second rotating knob is rotatably connected to the rotating base, and the operating end of the second rotating knob is located on the outer side of the rotating base; the contact end of the second rotating knob is located on the outer periphery of the universal ball joint. When the second rotating knob rotates, the contact end of the second rotating knob gradually approaches the peripheral wall of the universal ball joint and is able to contact the peripheral wall of the universal ball joint, so that the second rotating knob applies a contact damping force to the universal ball joint to lock the universal ball joint.

7. The tailgate projection device according to claim 1, characterized in that, The base has a groove, and the support is inserted into the groove and locked to the base.

8. The tailgate projection device according to claim 7, characterized in that, The side wall of the support base is provided with a snap-fit ​​groove; The base is connected to a locking arm, which is movably connected to the base. The operating end of the locking arm is located on the outside of the base and can be pressed by the user. The locking end of the locking arm engages or disengages from the latching groove as the locking arm moves, thereby locking or disengaging the support seat from the base. An elastic element is provided between the locking arm and the base. The two ends of the elastic element contact the locking arm and the base. The locking arm moves relative to the base under the elastic force of the elastic element.

9. The tailgate projection device according to claim 1, characterized in that, The tailgate projection device also includes a projection component, which is disposed on one side of the projection device and directly facing the projection end of the projection device; the projection component is located in the interior space or the exterior space of the vehicle. The projection assembly includes two suspension mounts and a screen. The two ends of the screen are respectively connected to the corresponding suspension mounts. One of the suspension mounts can be connected to the interior side wall of the vehicle or to a suspension component located outside the vehicle. The screen is positioned directly opposite the projection end of the projection device and is used by the projection device to project images.

Images