Support structure and projection device

Abstract

The embodiment of the utility model provides a kind of support structure and projection equipment, it is related to projection equipment technical field.The support structure includes mounting pole and telescopic sleeve pole, the both ends of mounting pole are connected with projector and curtain respectively, the top of telescopic sleeve pole is connected with mounting pole, telescopic sleeve pole is used to drive mounting pole to lift along vertical direction, to adjust projection height.In use, mounting pole and telescopic sleeve pole are connected, the both ends of mounting pole are connected with curtain and projector respectively, telescopic sleeve pole can support mounting pole telescopic sleeve pole can drive mounting pole to lift along vertical direction, to adjust the height of support structure, and then flexibly adjust the use height of projector and curtain, so that projector can be applicable in more different scenarios, improve the convenience and degree of freedom.

Description

Technical Field

[0001] This utility model relates to the field of projection equipment technology, and more specifically, to a support structure and a projection device. Background Technology

[0002] In current technology, projectors, as a common display device, are widely used in various settings such as e-sports, conference rooms, classrooms, and home entertainment. To meet the needs of different scenarios, projectors typically need to be able to flexibly adjust their projection angle and height to achieve the best projection effect. However, many existing projector mounting brackets have relatively simple designs, supporting only limited angle adjustments and failing to adapt to various usage environments. For example, in a conference room, depending on the room size and layout, the projector may need to be installed at different heights to avoid obstruction or ensure image clarity; while in a home environment, users may want to adjust the projector height according to furniture arrangement and personal viewing habits. Because existing mounting brackets cannot flexibly adjust height, the application scenarios of projectors are greatly limited, failing to fully realize their potential and increasing inconvenience for users.

[0003] Therefore, developing a mounting bracket that can flexibly adjust its height is of great significance for improving user experience and expanding the applicability of projectors. Utility Model Content

[0004] This utility model provides a support structure that can flexibly adjust the height of the projector and screen, making the projector applicable in more different scenarios and improving ease of use and flexibility.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] An embodiment of this utility model provides a support structure, which includes:

[0007] Mounting rod, with its two ends connected to the projector and the screen respectively;

[0008] A telescopic sleeve is provided, the top end of which is connected to the mounting rod. The telescopic sleeve is used to drive the mounting rod to rise and fall in the vertical direction, thereby adjusting the projected height.

[0009] Optionally, the telescopic sleeve includes a fixed sleeve and a telescopic rod. The top end of the fixed sleeve is connected to the mounting rod, and the bottom end of the fixed sleeve is connected to the telescopic rod. The telescopic rod is used to drive the fixed sleeve to move up and down in the vertical direction.

[0010] Optionally, the fixed sleeve rod has a threaded rod inside, and the telescopic rod has an internal thread. The telescopic rod and the threaded rod are connected by a thread, thereby connecting the fixed sleeve rod and the telescopic rod. Rotating the fixed sleeve rod or the telescopic rod causes the fixed sleeve rod and the telescopic rod to move closer to or further away from each other, thereby driving the mounting rod to rise and fall in the vertical direction.

[0011] Optionally, the telescopic sleeve also includes a snap-fit ​​component, which is movably connected to the outer surface of the telescopic sleeve. The fixed sleeve has multiple slots along the vertical direction, and the snap-fit ​​component snaps into the slots. The snap-fit ​​component is used to realize the vertical lifting and lowering movement of the fixed sleeve when snapped into different slots.

[0012] Optionally, the snap-fit ​​component includes a mounting base, a movable head, and an elastic element. The mounting base is disposed on the outer surface of the telescopic rod, the elastic element is disposed on the mounting base, the elastic element is elastically connected to the inner wall of the mounting base, the elastic element is connected to the movable head, a portion of the movable head extends out of the mounting base, the movable head is used for elastic connection with the telescopic rod through the elastic element, and the movable head is snapped into the slot.

[0013] Optionally, the elastic element includes a spring and a slider, with the two ends of the spring connected to the mounting base and the slider respectively, the slider connected to the movable head, and the slider slidably connected to the inner wall of the mounting base.

[0014] Optionally, the support structure further includes a tripod, which is connected to the bottom end of the telescopic sleeve rod for supporting the telescopic sleeve rod.

[0015] Optionally, the tripod is provided with casters at the bottom.

[0016] Optionally, the bracket structure further includes a rotating component, which is disposed at the top end of the telescopic sleeve rod, and the mounting rod and the telescopic sleeve rod are rotatably connected through the rotating component.

[0017] Optionally, the bracket structure further includes a clamp, which is rotatably connected to the end of the mounting rod, and the clamp is used to engage with the projector.

[0018] This utility model also provides a projection device, including a projector, a screen, and a support structure, wherein the projector and the screen are detachably connected to both ends of the mounting rod.

[0019] The beneficial effects of the support structure and projection device of this utility model embodiment include, for example:

[0020] The bracket structure includes a mounting rod and a telescopic sleeve. The two ends of the mounting rod are connected to the projector and the screen, respectively. The top of the telescopic sleeve is connected to the mounting rod. The telescopic sleeve is used to vertically raise and lower the mounting rod, thereby adjusting the projection height. In use, the mounting rod and the telescopic sleeve are connected, with the two ends of the mounting rod connected to the screen and the projector, respectively. The telescopic sleeve supports the mounting rod. When adjusting the usage scenario, since the projector and screen are directly integrated onto the mounting rod, the projector and screen can be moved together simply by moving the telescopic sleeve. This is simple and convenient, allowing for easy picking up and moving, and enabling seamless switching between usage scenarios. Furthermore, the telescopic sleeve can vertically raise and lower the mounting rod, thereby adjusting the height of the bracket structure and flexibly adjusting the usage height of the projector and screen. This makes the projector suitable for more diverse scenarios, improving ease of use and flexibility.

[0021] This projection device includes a projector, a screen, and a support structure. The projector and the screen are detachably connected to both ends of a mounting rod. In use, the mounting rod connects to a telescopic sleeve, with the screen and projector connected to the two ends of the mounting rod respectively. The telescopic sleeve supports the mounting rod. When adjusting the usage scenario, since the projector and screen are directly integrated onto the mounting rod, they can be moved together simply by moving the telescopic sleeve. This is simple and convenient, allowing for easy picking up and moving, and enabling seamless switching between usage scenarios. Furthermore, the telescopic sleeve can vertically raise and lower the mounting rod, thereby adjusting the height of the support structure and flexibly adjusting the usage height of the projector and screen. This makes the projector suitable for more diverse scenarios, improving ease of use and flexibility. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the support structure provided in Example 1 in the open state;

[0024] Figure 2 A schematic diagram of the telescopic sleeve provided in Example 1;

[0025] Figure 3 This is a schematic diagram of the snap-fit ​​connector provided in Example 1;

[0026] Figure 4This is a schematic diagram of the connection between the curtain and the mounting rod provided in Example 1;

[0027] Figure 5 This is a schematic diagram of the connection between the curtain support rod and the recycling box provided in Example 1;

[0028] Figure 6 This is a schematic diagram of the telescopic sleeve provided in Example 2.

[0029] Icons: 10-Mounting rod; 101-Storage slot; 20-Telescopic sleeve rod; 21-Fixed sleeve rod; 210-Threaded rod; 22-Telescopic rod; 201-Internal thread; 23-Snap-fit ​​component; 231-Mounting base; 232-Elastic component; 2321-Spring; 2322-Slider; 233-Moving head; 203-Slot; 30-Rotating component; 40-Clamp; 50-Screen support rod; 60-Snap fastener; 70-Projector; 80-Screen; 81-Fabric body; 801-Fastener; 82-Screen frame rod; 90-Tripod; 100-Recycling box; 110-Slide rail. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0035] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0036] Example 1

[0037] In current technology, projectors, as a common display device, are widely used in various settings such as e-sports, conference rooms, classrooms, and home entertainment. To meet the needs of different scenarios, projectors typically need to be able to flexibly adjust their projection angle and height to achieve the best projection effect. However, many existing projector mounting brackets have relatively simple designs, supporting only limited angle adjustments and failing to adapt to various usage environments. For example, in a conference room, depending on the room size and layout, the projector may need to be installed at different heights to avoid obstruction or ensure image clarity; while in a home environment, users may want to adjust the projector height according to furniture arrangement and personal viewing habits. Because existing mounting brackets cannot flexibly adjust height, the application scenarios of projectors are greatly limited, failing to fully realize their potential and increasing inconvenience for users.

[0038] Therefore, developing a mounting bracket that can flexibly adjust its height is of great significance for improving user experience and expanding the applicability of projectors.

[0039] Please refer to Figures 1-5 This embodiment provides a projection device including a projector 70, a screen 80, and a support structure. Both the projector 70 and the screen 80 are mounted on the support structure, which supports both the projector 70 and the screen 80. The support structure can be raised and lowered vertically to adjust the operating height of the projector 70 and the screen 80. This projection device effectively improves the aforementioned technical problems. The ability to flexibly adjust the operating height of the projector 70 and the screen 80 allows the projector 70 to be used in more diverse scenarios, improving ease of use and flexibility.

[0040] Understandably, the projector 70 includes an optical module, a connection module, and a control module. The connection module is connected to the optical module, and the control module is connected to the connection module. The control module and the optical module are separately configured. The support structure is connected to the connection module.

[0041] In this embodiment, the curtain 80 includes a fabric body 81 and a curtain frame rod 82. The fabric body 81 and the curtain frame rod 82 are connected, and the curtain frame rod 82 is detachably connected to the support structure. The fabric body 81 has a square frame structure, and the curtain frame rod 82 has a rod-shaped structure. The curtain frame rod 82 is vertically positioned at the top of the fabric body 81 and is used to support and fix the fabric body 81.

[0042] It should be noted that the support structure includes a mounting rod 10 and a telescopic sleeve rod 20. The two ends of the mounting rod 10 are connected to the projector 70 and the screen 80, respectively. The top of the telescopic sleeve rod 20 is connected to the mounting rod 10. The telescopic sleeve rod 20 is used to vertically raise and lower the mounting rod 10, thereby adjusting the projection height. Specifically, the projector 70 and the screen 80 are directly integrated onto the mounting rod 10. The projector 70 projects light towards the screen 80, thus forming a projected image on the screen 80. The telescopic sleeve rod 20 is vertically positioned and supports the mounting rod 10. Simply moving the telescopic sleeve rod 20 allows the projector 70 and the screen 80 to be moved together, making operation simple and convenient, easy to pick up and move, and enabling seamless switching between usage scenarios.

[0043] It should also be noted that the telescopic sleeve 20 can drive the mounting rod 10 to rise and fall in the vertical direction. When it is necessary to adjust the projection height, the telescopic sleeve 20 can be raised and lowered in the vertical direction to adjust the height of the mounting rod 10 in the vertical direction, thereby achieving the adjustment of the projection height.

[0044] Specifically, the telescopic sleeve 20 includes a fixed sleeve 21 and a telescopic rod 22. The top end of the fixed sleeve 21 is connected to the mounting rod 10, and the bottom end of the fixed sleeve 21 is connected to the telescopic rod 22. The telescopic rod 22 is used to drive the fixed sleeve 21 to move up and down in the vertical direction. Both the fixed sleeve 21 and the telescopic rod 22 are arranged vertically. The fixed sleeve 21 has a hollow structure, and the top end of the telescopic rod 22 is movably disposed inside the fixed sleeve 21.

[0045] In this embodiment, the telescopic sleeve 20 further includes a snap-fit ​​member 23, which is movably connected to the outer surface of the telescopic rod 22. The fixed sleeve 21 has multiple slots 203 along the vertical direction, and the snap-fit ​​member 23 snaps into these slots. The snap-fit ​​member 23 is used to achieve vertical lifting and lowering movement of the fixed sleeve 21 when snapped into different slots 203. The snap-fit ​​member 23 includes a mounting base 231, a movable head 233, and an elastic member 232. The mounting base 231 is disposed on the outer surface of the telescopic rod 22, and the elastic member 232 is disposed on the mounting base 231. The elastic member 232 is elastically connected to the inner wall of the mounting base 231. A portion of the movable head 233 extends out of the mounting base 231 and is elastically connected to the telescopic rod 22 via the elastic member 232. The movable head 233 snaps into the slots 203.

[0046] Specifically, the mounting base 231 has a rectangular structure, and the bottom of the mounting base 231 is fixed to the outer surface of the telescopic rod 22. When the movable head 233 is subjected to external force, it can move relative to the mounting base 231 through the elastic force of the elastic element 232.

[0047] In this embodiment, the slot 203 is circular. In other embodiments, the shape of the slot 203 can be adjusted according to the shape of the connector 23, and no specific limitation is made here.

[0048] In this embodiment, there are four card slots 203, which are arranged alternately in a vertical direction. In other embodiments, the number of card slots 203 may be increased or decreased, and no specific limitation is made here.

[0049] It should be noted that the elastic element 232 includes a spring 2321 and a slider 2322. The two ends of the spring 2321 are connected to the mounting base 231 and the slider 2322 respectively. The slider 2322 is connected to the movable head 233, and the slider 2322 is slidably connected to the inner wall of the mounting base 231.

[0050] During operation, manually press the movable head 233. Driven by the slider 2322, the movable head 233 slides relative to the mounting base 231 and compresses the spring 2321. The movable head 233 retracts into the mounting base 231 and leaves the slot 203 at its current position. Then, the fixed sleeve 21 moves vertically upward or downward. The end of the movable head 233 away from the spring 2321 abuts against the inner wall of the fixed sleeve 21, and the spring 2321 is in a compressed state. The fixed sleeve 21 continues to move until the position of the adjacent slot 203 corresponds to the position of the movable head 233. At this time, the end of the movable head 233 away from the spring 2321 no longer abuts against the inner wall of the fixed sleeve 21, and the spring 2321 enters an open state. Under the elastic force of the spring 2321, the movable head 233 moves in the opposite direction relative to the mounting base 231, thereby extending out of the mounting base 231 and entering the slot 203, realizing the engagement action between the movable head 233 and the slot 203.

[0051] It should also be noted that the slider 2322 includes a sliding plate and two side sliders 2322. The two sides of the sliding plate are connected to the spring 2321 and the movable head 233, respectively. The two side sliders 2322 are respectively located on opposite edges of the sliding plate, and both side sliders 2322 are slidably connected to the side wall of the mounting base 231. When the movable head 233 is subjected to external force, the two side sliders 2322 slide on the inner side of the mounting base 231, thereby causing the sliding plate to slide, which in turn causes the movable head 233 to slide, thus realizing the extension and retraction of the movable head 233.

[0052] In this embodiment, the bracket structure also includes a rotating component 30, which is disposed at the top end of the telescopic sleeve rod 20. The mounting rod 10 and the telescopic sleeve rod 20 are rotatably connected through the rotating component 30.

[0053] Specifically, the rotating component 30 is a rotating shaft, the top of the fixed sleeve rod 21 is provided with a rotating groove, the middle part of the mounting rod 10 is located in the rotating groove, and the rotating shaft passes through the rotating groove and the mounting rod 10. Rotating the rotating shaft can lock or loosen the mounting rod 10 and the fixed sleeve rod 21; the end of the rotating shaft is provided with a knob to facilitate rotating the rotating shaft.

[0054] When angle adjustment is required, turn the knob to drive the shaft to rotate, loosening the connection between the mounting rod 10 and the fixing sleeve 21. Then adjust the mounting angle of the mounting rod 10. After adjustment, turn the knob in the opposite direction to drive the shaft to rotate in the opposite direction, thereby locking the mounting rod 10 and the fixing sleeve 21.

[0055] In addition, to ensure the support stability of the telescopic sleeve 20, a tripod 90 is provided at the bottom of the telescopic sleeve 20. The bottom of the tripod 90 is equipped with pulleys, which can slide the telescopic sleeve 20 when it is moved, making the overall movement more effortless and convenient.

[0056] In this embodiment, the bracket structure further includes a clamp 40, which is rotatably connected to the end of the mounting rod 10. The clamp 40 is used to engage with the projector 70. The clamp 40 includes a ring and a connecting portion. The two ends of the connecting portion are respectively connected to the ring and the mounting rod 10. The ring is used to engage with the projector 70. The connecting portion and the mounting rod 10 are rotatably connected via a pivot.

[0057] In other embodiments, the support structure further includes a connecting rod, one end of which is connected to the middle of the projector 70, and the other end of which is detachably connected to the mounting rod 10. The projector 70 is connected to the mounting rod 10 via the connecting rod. Specifically, the projector 70 includes an optical module, a connecting module, and a control module. The connecting module is connected to the optical module, and the control module is connected to the connecting module. The control module and the optical module are separately configured. The end of the connecting rod is connected to the outer surface of the connecting module.

[0058] In this embodiment, the support structure also includes a screen support rod 50. The mounting rod 10 has a storage groove 101 along its length. The screen support rod 50 is rotatably disposed in the storage groove 101. When projection is not required, the screen support rod 50 is stored in the storage groove 101. When projection is required, the screen support rod 50 is rotated so that it leaves the storage groove 101 until the screen support rod 50 and the mounting rod 10 are perpendicular. At this time, the screen support rod 50 is in working state, connecting the screen support rod 50 and the screen frame rod 82, thereby realizing the installation of the screen 80.

[0059] In this embodiment, the support structure also includes a recycling box 100, which is connected to the top of the fabric 81. The fabric 81 can be recycled into the recycling box 100 for storage. The recycling box 100 is connected to the curtain support rod 50, and the recycling box 100 and the curtain support rod 50 can be stored together in the storage slot 101.

[0060] It should be noted that the recycling box 100 and the screen support rod 50 are rotatably connected. When the recycling box 100 is rotated to be perpendicular to the screen support rod 50, the cloth 81 is opened from the recycling box 100 for projection. When it is time to store, the cloth 81 is stored in the recycling box 100, and then the recycling box 100 is rotated so that the recycling box 100 and the screen support rod 50 are aligned. Then the recycling box 100 and the screen support rod 50 are stored together in the storage slot 101.

[0061] Specifically, a slide rail 110 is provided along the length of the screen support rod 50. The slide rail 110 is located at the end of the screen support rod 50 away from the mounting rod 10. The recycling box 100 is slidably disposed on the slide rail 110. The two ends of the slide rail 110 are the projection position and the storage position, respectively. When the recycling box 100 slides to the projection position, the cloth 81 is opened from the recycling box 100 for projection. When the recycling box 100 slides to the storage position, it rotates relative to the screen support rod 50, so that the recycling box 100 and the screen support rod 50 coincide and are stored together in the storage slot 101.

[0062] In other embodiments, the mounting rod 10 has a receiving cavity inside, which is connected to one end of the mounting rod 10. The surface of the mounting rod 10 has a groove, and the curtain support rod 50 is rotatably disposed in the groove. The recycling box 100 and the curtain support rod 50 are detachably connected. When the recycling box 100 is separated from the curtain support rod 50, it is disposed in the receiving cavity for storage.

[0063] Specifically, the end where the screen support rod 50 and the mounting rod 10 are connected is provided with a buckle 60, and the bottom edge of the fabric 81 is provided with a fastener 801 that cooperates with the buckle 60. After the screen support rod 50 and the screen frame rod 82 are connected, the fastener 801 and the buckle 60 at the bottom of the fabric 81 are engaged, thereby further reinforcing the installation of the screen 80, ensuring the installation stability of the screen 80, preventing the screen 80 from shaking during projection, and ensuring the normal use of the projection.

[0064] In this embodiment, both the fastener 801 and the latch 60 are V-shaped structures, and their installation directions are opposite, allowing them to snap together. In other embodiments, the shape of the latch 60 can be adjusted according to actual usage, and is not specifically limited here.

[0065] In summary, this utility model embodiment provides a support structure and projection device. The support structure includes a mounting rod 10 and a telescopic sleeve rod 20. Both ends of the mounting rod 10 are connected to a projector 70 and a screen 80, respectively. The top end of the telescopic sleeve rod 20 is connected to the mounting rod 10. The telescopic sleeve rod 20 is used to vertically raise and lower the mounting rod 10, thereby adjusting the projection height. In use, the mounting rod 10 and the telescopic sleeve rod 20 are connected, with both ends of the mounting rod 10 connected to the screen 80 and the projector 70, respectively. The telescopic sleeve rod 20 supports the mounting rod 10. When adjusting the usage scenario, since the projector 70 and the screen 80 are directly integrated onto the mounting rod 10, the projector 70 and the screen 80 can be moved together simply by moving the telescopic sleeve rod 20. The operation is simple and convenient, allowing for easy picking up and moving, and enabling easy switching of usage scenarios. For example, when projecting outdoors, simply push the telescopic sleeve rod 20, causing the pulleys at the bottom of the tripod 90 to move the telescopic sleeve rod 20. The telescopic rod 20 slides down, causing the support structure, projector 70, and screen 80 to slide together, allowing the entire projection device to be pushed out to an outdoor location. For example, if projection is needed upstairs, the telescopic rod 20 can be moved to move the entire projection device upstairs. Furthermore, the telescopic rod 20 can vertically raise and lower the mounting rod 10, thereby adjusting the height of the support structure and flexibly adjusting the usage height of the projector 70 and screen 80. This makes the projector 70 applicable in more different scenarios, improving ease of use and flexibility.

[0066] The projection device includes a projector 70, a screen 80, and a support structure. The projector 70 and the screen 80 are detachably connected to both ends of the mounting rod 10. In use, the mounting rod 10 is connected to a telescopic sleeve 20, with the screen 80 and projector 70 connected to both ends of the mounting rod 10. The telescopic sleeve 20 supports the mounting rod 10. When adjusting the usage scenario, since the projector 70 and screen 80 are directly integrated onto the mounting rod 10, the projector 70 and screen 80 can be moved together simply by moving the telescopic sleeve 20. This operation is simple and convenient, allowing for easy picking up and moving, and enabling seamless switching between usage scenarios. Furthermore, the telescopic sleeve 20 can vertically raise and lower the mounting rod 10, thereby adjusting the height of the support structure and flexibly adjusting the usage height of the projector 70 and screen 80. This allows the projector 70 to be used in more diverse scenarios, improving ease of use and flexibility.

[0067] Example 2

[0068] Please refer to Figure 1 and Figure 6This embodiment provides a support structure, which includes a mounting rod 10 and a telescopic sleeve rod 20. The two ends of the mounting rod 10 are respectively used to connect to the projector 70 and the screen 80. The top end of the telescopic sleeve rod 20 is connected to the mounting rod 10. The telescopic sleeve rod 20 is used to drive the mounting rod 10 up and down in the vertical direction, thereby adjusting the projection height.

[0069] Unlike Embodiment 1, the fixed sleeve rod 21 has a threaded rod 210 inside, and the telescopic rod 22 has an internal thread 201. The telescopic rod 22 and the threaded rod 210 are connected by threads, thereby connecting the fixed sleeve rod 21 and the telescopic rod 22. Rotating the fixed sleeve rod 21 or the telescopic rod 22 causes the fixed sleeve rod 21 and the telescopic rod 22 to move closer to or further away from each other, thereby driving the mounting rod 10 to rise and fall in the vertical direction.

[0070] Specifically, the fixed sleeve 21 has a hollow structure, and the threaded rod 210 is disposed inside the fixed sleeve 21, so that the internal thread 201 inside the fixed sleeve 21 and the external thread of the telescopic rod 22 are threadedly connected.

[0071] During operation, the fixed sleeve rod 21 can be rotated clockwise or counterclockwise to engage the threaded rod 210 of the fixed sleeve rod 21 and the internal thread 201 of the telescopic rod 22, thereby adjusting the height of the fixed sleeve rod 21 in the vertical direction, thus lowering or increasing the height of the fixed sleeve rod 21.

[0072] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A support structure, characterized in that, include: Mounting rod (10), the two ends of which are connected to projector (70) and screen (80) respectively; Telescopic sleeve (20), the top end of which is connected to the mounting rod (10), the telescopic sleeve (20) is used to drive the mounting rod (10) to rise and fall in the vertical direction, thereby adjusting the projection height.

2. The support structure according to claim 1, characterized in that, The telescopic sleeve (20) includes a fixed sleeve (21) and a telescopic rod (22). The top end of the fixed sleeve (21) is connected to the mounting rod (10), and the bottom end of the fixed sleeve (21) is connected to the telescopic rod (22). The telescopic rod (22) is used to drive the fixed sleeve (21) to rise and fall in the vertical direction.

3. The support structure according to claim 2, characterized in that, The fixed sleeve rod (21) has a threaded rod (210) inside, and the telescopic rod (22) has an internal thread (201). The telescopic rod (22) and the threaded rod (210) are connected by threads, thereby connecting the fixed sleeve rod (21) and the telescopic rod (22). Rotating the fixed sleeve rod (21) or the telescopic rod (22) causes the fixed sleeve rod (21) and the telescopic rod (22) to move closer or further away from each other, thereby driving the mounting rod (10) to rise and fall in the vertical direction.

4. The support structure according to claim 2, characterized in that, The telescopic sleeve (20) also includes a snap-fit ​​member (23), which is movably connected to the outer surface of the telescopic rod (22). The fixed sleeve (21) is provided with a plurality of slots (203) along the vertical direction. The snap-fit ​​member (23) snaps into the slots (203). The snap-fit ​​member (23) is used to realize the vertical lifting and lowering movement of the fixed sleeve (21) when snapped into different slots (203).

5. The support structure according to claim 4, characterized in that, The snap-fit ​​component (23) includes a mounting base (231), a movable head (233), and an elastic element (232). The mounting base (231) is disposed on the outer surface of the telescopic rod (22), and the elastic element (232) is disposed on the mounting base (231). The elastic element (232) and the inner wall of the mounting base (231) are elastically connected. The elastic element (232) and the movable head (233) are connected. Part of the movable head (233) extends out of the mounting base (231). The movable head (233) is used to elastically connect with the telescopic rod (22) through the elastic element (232). The movable head (233) is snapped into the slot (203).

6. The support structure according to claim 5, characterized in that, The elastic element (232) includes a spring (2321) and a slider (2322). The two ends of the spring (2321) are connected to the mounting base (231) and the slider (2322) respectively. The slider (2322) is connected to the movable head (233), and the slider (2322) is slidably connected to the inner wall of the mounting base (231).

7. The support structure according to claim 1, characterized in that, The support structure also includes a tripod (90), which is connected to the bottom end of the telescopic sleeve (20) for supporting the telescopic sleeve (20).

8. The support structure according to claim 7, characterized in that, The tripod (90) is equipped with casters at the bottom.

9. The support structure according to claim 1, characterized in that, The support structure also includes a rotating component (30), which is disposed at the top end of the telescopic sleeve rod (20). The mounting rod (10) and the telescopic sleeve rod (20) are rotatably connected through the rotating component (30).

10. A projection device, characterized in that, The device includes a projector (70), a screen (80), and a support structure as described in any one of claims 1-9, wherein the projector (70) and the screen (80) are detachably connected to both ends of the mounting rod (10), respectively.

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