A convenient fixed projector
By designing fixed and movable clamps, combined with connectors and angle adjustment mechanisms, the problems of unstable fixation and difficult angle adjustment of the projector on rod-shaped objects are solved, achieving stable fixation and flexible angle adjustment, thus improving safety and applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN POWERFUL PHOTOELECTRON
- Filing Date
- 2025-08-12
- Publication Date
- 2026-05-26
AI Technical Summary
Existing projectors are not securely fixed to rod-shaped objects, and the angle is difficult to adjust, which limits their use cases and poses safety hazards.
The design employs a fixed clamping plate and a movable clamping plate, combined with connecting parts and an angle adjustment mechanism. The projector is stably fixed and can be adjusted at multiple angles through clamping parts, a suspension frame, and a worm gear structure. Threaded transmission and a rubber layer are used to enhance friction.
It enables the projector to be stably fixed on a rod-shaped object and allows for flexible angle adjustment, improving safety and applicability, simplifying the operation process, and expanding the application scenarios.
Smart Images
Figure CN224284119U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of projection equipment technology, and in particular to a convenient fixed projector. Background Technology
[0002] A projector is a device that projects images or videos onto a flat surface such as a screen, wall, or floor. It utilizes the imaging and color synthesis principles of convex lenses and works through components such as a light source, optical system, and imaging element. Based on imaging technology, it can be divided into types such as LCD and DLP, and based on usage, it can be divided into home and business types. It is used in scenarios such as home entertainment, business office, education, and outdoor activities, and can magnify the displayed content to bring a large-screen experience.
[0003] In existing technologies, projector installation is typically limited to placing them on flat surfaces such as the ground, tabletops, or chairs. While this method meets basic usage needs in conventional scenarios, it becomes crucial to mount projectors on tree trunks, utility poles, or other pole-like objects when needed, especially in crowded locations like temporary information points in scenic areas, outdoor promotional booths, or open-air events on campuses. Traditional installation methods then reveal significant shortcomings: firstly, the lack of specialized mounting structures for pole-like objects makes the mounting process cumbersome and unstable, increasing the risk of the projector falling due to external interference and posing a safety hazard; secondly, fixed projectors often lack angle adjustment capabilities, making it difficult to adjust the projection direction according to actual needs. This severely limits the projection range, hindering accurate projection onto the target area and significantly impacting the user experience.
[0004] Therefore, a convenient fixed projector is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a convenient fixed projector to solve the above-mentioned problems.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] A convenient fixed projector includes a projector body, a fixing member fixed to the projector body, and a fixed clamp plate and a movable clamp plate arranged at intervals, wherein the fixed clamp plate and the movable clamp plate have a close-to-each state and a far-from-each-other state; a connecting member is provided between the fixing member and the fixed clamp plate.
[0008] The connector includes a tube body, a connecting rod, and a clamping member. The tube body is disposed on the side of the fixing member facing the fixed clamping plate. The connecting rod is installed on the side of the fixed clamping plate facing the tube body, with one end of the connecting rod extending into the interior of the tube body. The clamping member is disposed on the end of the tube body near the fixed clamping plate and has a clamping state and a loosening state. In the clamping state, the clamping member abuts against the connecting rod, restricting the relative rotation between the tube body and the connecting rod. In the loosening state, there is a gap between the clamping member and the connecting rod, allowing the tube body to rotate relative to the connecting rod.
[0009] Optionally, the connector further includes a tail cap; one end of the tail cap is sleeved on the outside of the tube body, the outer circumferential surface of the tube body is provided with an external thread, and the inner wall of the tail cap is provided with an internal thread that mates with the external thread; the end of the tail cap near the fixed clamping plate has a tapered structure with a gradually narrowing inner diameter along the axial direction, the clamping member is located inside the tail cap and slides in contact with the tapered inner wall of the tail cap, and the clamping member is an elastic structure; by screwing the tail cap to move it along the axial direction of the tube body, the clamping member is driven to deform and switch between the clamping state and the loosening state.
[0010] Optionally, the fixed clamping plate further includes a suspension frame and a transmission rod. The suspension frame is disposed on the side of the fixed clamping plate facing the tube body. The end of the connecting rod away from the tube body is connected to the suspension frame through the transmission rod to form a rotating pair. The connecting rod can rotate around the transmission rod as the rotation center in the opening area of the suspension frame.
[0011] Optionally, the suspension frame is provided with an angle adjustment mechanism for positioning the rotation angle of the connecting rod.
[0012] Optionally, the angle adjustment mechanism includes a worm, a worm wheel, a connecting seat, and a handwheel; both ends of the worm are connected to the suspension frame through the connecting seat, the worm and the connecting seat are rotatably connected, the transmission rod is fixedly sleeved with a worm wheel that meshes with the worm, and the handwheel is located at one end of the worm.
[0013] Optionally, a transmission mechanism is provided between the fixed clamping plate and the movable clamping plate. The transmission mechanism includes a threaded hole, a threaded rod, and a rocker arm. There are two threaded holes located at both ends of the movable clamping plate. There are two threaded rods located at both ends of the fixed clamping plate. One end of the threaded rod passes through the threaded hole on the same side and is threadedly connected to it. A rocker arm is provided at the end of the threaded rod away from the movable clamping plate.
[0014] Optionally, the fixed clamping plate and the movable clamping plate each have an arc-shaped portion protruding in the middle towards opposite sides, and the opposite sides of the fixed clamping plate and the movable clamping plate are covered with a rubber layer.
[0015] Optionally, the outer surface of the connecting rod is provided with anti-slip texture one, and the side of the clamping member near the connecting rod is provided with anti-slip texture two.
[0016] Compared to existing technologies, the advantages of this utility model are as follows: The design of the fixed and movable clamping plates, their approaching and receding states, the arc-shaped portion formed by the recess on opposite sides, and the rubber layer applied to the opposite sides allow for adaptation to rod-shaped objects of different diameters. This increases the contact area and friction coefficient, improves fixing stability, and protects the object's surface, solving the problems of inconvenient installation, easy falling, and damage to objects associated with traditional methods. Furthermore, the connection between the tube and the connecting rod in the connector, along with the clamping components' switching between loosening and clamping states achieved through the conical structure of the tail cap and threaded transmission, combined with the anti-slip texture of the connecting rod and clamping components, allows the tube to rotate relative to the connecting rod to flexibly adjust the projection angle and achieve stable locking, breaking the limitation of the projection range. The system features a transmission mechanism between the fixed and movable clamping plates. Through threaded rods and threaded holes, along with a rocker arm design, it allows for quick clamping and loosening without tools, improving ease of operation and structural reliability. The connecting rod incorporates a suspension bracket, transmission rod, and worm gear angle adjustment mechanism, enabling omnidirectional rotation and adjustment of the projector around the clamped object, enhancing the equipment's practicality and applicability. The mounting bracket, connected by external and internal threads, allows for quick ground installation and disassembly, expanding the projector's application scenarios. The overall structure, through the synergistic effect of multiple innovative designs, significantly improves the equipment's performance, stability, and ease of operation in special scenarios. Attached Figure Description
[0017] The accompanying drawings further illustrate the present invention, but the content of the drawings does not constitute any limitation on the present invention.
[0018] Figure 1 This is a partial three-dimensional bottom view of the structure of this utility model;
[0019] Figure 2 This is a partial exploded cross-sectional view of the tube body, tail cap, angle adjustment mechanism, fixed clamping plate, and movable clamping plate of this utility model.
[0020] Figure 3 This is an operational diagram of the fixed clamping plate, the movable clamping plate, and the transmission mechanism of this utility model;
[0021] Figure 4 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0022] Figure 5 This is an exploded view of the projector body, fixing parts, internal threaded sleeve, bracket, and external thread II of this utility model.
[0023] In the attached diagram: 1. Projector body; 2. Fixing component; 31. Fixed clamping plate; 32. Moving clamping plate; 33. Arc-shaped part; 4. Connecting component; 41. Tube body; 42. Connecting rod; 421. Suspension bracket; 422. Transmission rod; 423. Anti-slip texture one; 43. Clamping component; 431. Anti-slip texture two; 44. Tail cap; 45. External thread one; 46. Internal thread one; 47. Angle adjustment mechanism; 471. Worm gear; 472. Worm wheel; 473. Connecting seat; 474. Handwheel; 5. Transmission mechanism; 51. Threaded hole; 52. Threaded rod; 53. Rocker arm; 6. Rubber layer; 7. Internal threaded sleeve; 8. Bracket; 9. External thread two. Detailed Implementation
[0024] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, 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," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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 limiting this utility model. In addition, 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0027] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0028] In this embodiment, by Figure 1-5 A convenient fixed projector is provided, including a projector body 1, a fixing member 2 fixed to the projector body 1, and a fixed clamping plate 31 and a movable clamping plate 32 arranged at intervals. The fixed clamping plate 31 and the movable clamping plate 32 have a close-to-each state and a far-from-each-other state. In the close-to-each state, the fixed clamping plate 31 and the movable clamping plate 32 are close to each other, and in the far-from-each-other state, the fixed clamping plate 31 and the movable clamping plate 32 are far from each other. A connecting member 4 is provided between the fixing member 2 and the fixed clamping plate 31.
[0029] The connector 4 includes a tube body 41, a connecting rod 42, and a clamping member 43. The tube body 41 is located on the side of the fixing member 2 facing the fixed clamping plate 31. The connecting rod 42 is located on the side of the fixed clamping plate 31 facing the tube body 41, and one end of the connecting rod 42 extends into the interior of the tube body 41. The clamping member 43 is located on the end of the tube body 41 near the fixed clamping plate 31. The clamping member 43 has a clamping state and a loosening state. In the clamping state, the clamping member 43 abuts against the connecting rod 42, restricting the relative rotation between the tube body 41 and the connecting rod 42. In the loosening state, there is a gap between the clamping member 43 and the connecting rod 42, allowing the tube body 41 to rotate relative to the connecting rod 42.
[0030] In this embodiment, the design of the fixed clamping plate 31 and the movable clamping plate 32 in near and far states can accommodate rod-shaped objects of different diameters, expanding the installation scenarios of the projector and solving the problem of inconvenient installation of traditional projectors in special scenarios. When the clamping member 43 is in the clamping state, it abuts against the connecting rod 42, restricting the relative rotation between the tube body 41 and the connecting rod 42, ensuring that the projector is fixed and stable, preventing it from falling, and improving the safety of use. When the clamp is released, the tube body 41 can rotate relative to the connecting rod 42. With the help of the angle adjustment structure, the projection angle can be flexibly adjusted so that the projected image is accurately projected onto the target area, breaking the situation of limited projection range and significantly improving the use effect and adaptability of the projector in special scenarios. In use, first fix the projector body 1 with the fixing part 2, place the fixed clamp 31 and the movable clamp 32 on both sides of the rod-shaped object, so that they are far apart to accommodate the rod-shaped object, and then bring them closer together to clamp to complete the initial fixation. If the angle needs to be adjusted, make the clamp 43 loose, rotate the tube 41 to drive the projector body 1 to the appropriate angle, and finally switch the clamp 43 to the clamping state to restrict the relative rotation of the tube 41 and the connecting rod 42, and firmly maintain the projection angle to achieve stable projection. The operation is simple and can quickly meet the needs of projector fixation and angle adjustment in special scenarios.
[0031] To optimize the operating structure of connector 4 and improve its adjustment convenience and functional stability, refer to Figure 1 and Figure 2In this application, the tapered structure design of the tail cap 44 enables efficient control of the state of the clamping member 43. Specifically, one end of the tail cap 44 is sleeved on the outside of the tube body 41, and the external thread 45 on the outer circumference of the tube body 41 is tightly engaged with the internal thread 46 on the inner wall of the tail cap 44 to form a stable helical transmission structure. The end of the tail cap 44 near the fixed clamping plate 31 has a tapered structure with a gradually narrowing inner diameter along the axial direction. The clamping member 43 is located inside the tail cap 44, and its outer side away from the tube body 41 is in contact with the tapered inner wall of the tail cap 44. The clamping member 43 is an elastic structure with an arc shape. Multiple clamping members 43 form a near-circular opening for the connecting rod 42 to enter. The clamping members 43 located inside can slide against the tapered inner wall. Under the continuous pressure of the tapered inner wall, the clamping members 43 continuously deform, and the multiple clamping members 43 gradually change from the initial open state to the closed state, that is, the opening formed by the multiple clamping members 43 away from the tube body 41 gradually decreases. Therefore, the user only needs to screw on the tail cap 44 to move it along the axial direction of the tube body 41 using the thread drive, which can accurately drive the clamping member 43 to switch between the clamping and loosening states. Compared to traditional clamping and adjustment methods, such as bolt pressing, snap-locking, and spring return, this design eliminates the need for complicated operations, simplifies the adjustment process, and provides a larger clamping area for better results. Furthermore, the self-locking properties of the threads and the guiding positioning of the tapered structure significantly improve the stability and reliability of the clamping state, effectively preventing connection failures caused by loosening and greatly enhancing the practicality and durability of the projector's mounting structure.
[0032] Furthermore, to enhance the stability of the projector after angle adjustment, this application provides anti-slip texture 423 on the outer surface of the connecting rod 42, and anti-slip texture 431 on the corresponding side of the clamping member 43. Both adopt a diamond-shaped mesh structure. This increases static friction and prevents angle deviation through mechanical locking, ensuring projection stability.
[0033] refer to Figure 1 and Figure 2Although the above embodiments can rotate the angle of the projector body 1 to drive the connected fixing part 2 and the indirectly connected tube 41 to rotate relative to the connecting rod 42, and use the clamping part 43 to clamp the connecting rod 42 after the angle is determined, thereby realizing the angle adjustment of the projector body 1, this adjustment method is only limited to local rotation. It cannot make the projector body 1 rotate around the clamped object or the fixed clamping plate 31 in all directions, resulting in a large limitation on the projection range of the projector body 1, low practicality and applicability of the equipment, and inconvenient operation. To solve this technical problem, this application innovatively designs the structure of the connecting rod 42. A suspension bracket 421 and a transmission rod 422 are added to the fixed clamp plate 31. The suspension bracket 421 is located on the side of the fixed clamp plate 31 facing the pipe body 41. The end of the connecting rod 42 away from the pipe body 41 is connected to the suspension bracket 421 via the transmission rod 422, forming a rotating pair. The suspension bracket 421 consists of two rectangular plates integrally formed with the fixed clamp plate 31. The two rectangular plates and the fixed clamp plate 31 constitute an open area, allowing the connecting rod 42 to rotate about the transmission rod 422 as its axis of rotation. The connecting rod 42 rotates within the opening area of 21. Simultaneously, the suspension frame 421 is equipped with an angle adjustment mechanism 47 for positioning the rotation angle of the connecting rod 42. This angle adjustment mechanism 47 consists of a worm gear 471, a worm wheel 472, a connecting seat 473, and a handwheel 474. Both ends of the worm gear 471 are connected to the suspension frame 421 (one of the rectangular plates) via the connecting seat 473. The worm gear 471 and the connecting seat 473 are rotatably connected. The transmission rod 422 is equipped with a worm wheel 472 that meshes with the worm gear 471. The handwheel 474 is fixed to one end of the worm gear 471. In use, the user only needs to turn the handwheel 474 to drive the worm gear 471 to rotate. The worm gear 471 then drives the meshing worm wheel 472 and the connecting rod 42 to rotate around the transmission rod 422, thereby precisely adjusting and positioning the rotation angle of the connecting rod 42. Compared to traditional adjustment methods, this not only breaks through the limitations of the projection range but also significantly improves the practicality, applicability, and ease of operation of the equipment.
[0034] refer to Figure 3To address the problems of cumbersome operation and unstable fixation of traditional projectors on rod-shaped objects, this application incorporates a transmission mechanism 5 between the fixed clamping plate 31 and the movable clamping plate 32. This mechanism achieves precise adjustment of the distance between the two through threaded transmission. Specifically, the transmission mechanism 5 consists of threaded holes 51, threaded rods 52, and a rocker arm 53. Two threaded holes 51 are symmetrically arranged at both ends of the movable clamping plate 32, and two threaded rods 52 are correspondingly arranged at both ends of the fixed clamping plate 31. One end of each threaded rod 52 passes through a threaded hole 51 on the same side and forms a threaded connection with it; the other end is fitted with the rocker arm 53. In use, the user simply rotates the rocker arm 53, causing the threaded rod 52 to helically drive within the threaded holes 51, moving the movable clamping plate 32 closer to or further away from the fixed clamping plate 31 along the axis of the threaded rod 52. Compared to traditional adjustment methods, such as bolts and nuts, this design does not require complex tools. It can quickly clamp and loosen rod-shaped objects of different diameters, such as tree trunks and utility poles, simply by rotating them, which significantly improves the convenience of the fixing operation. At the same time, the self-locking characteristic of the threaded connection ensures that the fixed clamping plate 31 and the moving clamping plate 32 firmly clamp the rod-shaped object, effectively preventing the projector from falling due to external interference, and greatly enhancing the reliability and safety of the fixing structure.
[0035] refer to Figure 2 and Figure 5In this embodiment, the arc-shaped portion 33 protruding from the middle of both the fixed clamping plate 31 and the movable clamping plate 32 towards opposite sides can closely fit the outer contour of rod-shaped objects such as tree trunks and utility poles. Compared with traditional flat clamping plates, this significantly increases the contact area, improves the friction and stability between the fixing structure and the rod-shaped object, and effectively prevents the projector from falling due to shaking during use. The rubber layer 6 laid on the opposite sides of the fixed clamping plate 31 and the movable clamping plate 32 is made of highly elastic silicone material. Its micron-level textured surface can further increase the coefficient of friction. At the same time, the elastic deformation buffers the clamping force, which can prevent the projector from sliding and avoid scratching damage to the surface of the rod-shaped object. Furthermore, the bracket 8, which is matched with the fixing component 2, has a columnar structure at the end away from the support leg, and the columnar structure is provided with external thread 9. The fixing component 2 is a ring structure, which firmly fixes the projector body 1. The internal thread sleeve 7 is a tubular structure, and one end is connected to the outer surface of the fixing component 2. Its shape matches the columnar structure at the end of the bracket 8 away from the support leg. In addition, the inner wall of the tubular internal thread sleeve 7 also has internal threads, which can form a threaded connection with the external thread 9 on the bracket 8, thereby realizing a detachable connection. That is, the bracket 8 can be connected when the projector body 1 needs to be connected, and the bracket 8 can be removed when not needed. Therefore, the self-locking characteristic of the thread is used to achieve a stable assembly between the bracket 8 and the fixing part 2. The ground installation or disassembly can be completed quickly without tools, so that the projector can be fixed to the rod-shaped object or placed on the ground through the bracket 8, which significantly improves the versatility and practicality of the equipment. When it is necessary to fix the projector to the rod-shaped object, the fixed clamp 31 and the movable clamp 32 are adjusted to a far apart state through the transmission mechanism 5. After the rod-shaped object is placed between the two, the transmission mechanism 5 is driven to bring the clamps closer. The curved contour of the arc part 33 forms a surface contact with the outer surface of the rod-shaped object. The rubber layer 6 is compressed and produces elastic deformation to fill the small gaps and increase the contact surface pressure to fix the rod-shaped object. When it is necessary to place the projector on the ground, the external thread 9 at the upper end of the bracket 8 is aligned with the internal thread sleeve 7 of the fixing part 2 and rotated clockwise to make the thread pair mesh. The self-locking principle of the helix angle of the thread being less than the friction angle ensures that the bracket 8 is stably connected. When it is necessary to switch the use scenario, the bracket 8 can be quickly disassembled by turning it counterclockwise, realizing the flexible application of the projector in different scenarios.
[0036] Working principle: The fixed clamping plate 31 and the movable clamping plate 32 are spaced apart via the transmission mechanism 5. Rotating the rocker arm 53 drives the threaded rod 52 to spiral within the threaded hole 51, causing the movable clamping plate 32 to move closer to or away from the fixed clamping plate 31. When they approach each other, the curved surface of the arc-shaped part 33 forms a surface contact with the outer surface of the rod-shaped object. The rubber layer 6 is compressed and undergoes elastic deformation, achieving stable clamping by increasing the coefficient of friction and contact area. The self-locking characteristic of the threaded pair ensures that it will not loosen under external vibration. The angle adjustment is divided into two levels. When adjusting the stage, loosening the tail cap 44 causes the external thread 45 and internal thread 46 to move the tail cap 44 axially along the tube body 41. The conical inner wall disengages from the clamping member 43, releasing the constraint on the connecting rod 42. The tube body 41 can then rotate around the center line of the connecting rod 42 to adjust the projector angle. When tightening the tail cap 44, the conical inner wall compresses the clamping member 43. Since the clamping member 43 is an elastic structure, it continuously deforms under the continuous pressure of the conical inner wall. Multiple clamping members 43 gradually change from their initial open / closed state. When the projector enters a retracted state, the opening formed by the ends of the multiple clamping parts 43 furthest from the tube body 41 gradually decreases, mechanically locking the current angle with the anti-slip texture 1 423 and anti-slip texture 2 431. During secondary adjustment, rotating the handwheel 474 drives the worm gear 471, which in turn drives the transmission rod 422 to rotate around the suspension bracket 421 via the worm wheel 472, thus achieving the projector's tilt angle. The reduction ratio of the worm gear 471 and worm wheel 472 provides precise adjustment capability and reverse self-locking prevents angle deviation caused by gravity. When switching scenes, it is necessary to place... When the device is on the ground, the bracket 8 is turned clockwise so that the external thread 2 9 is screwed into the internal thread sleeve 7. The preload of the threaded pair ensures vertical stability, and the bracket 8 is supported on the ground, enabling quick scene switching. Therefore, when the projector body 1 needs to be placed on the ground using the bracket 8, all parts except those connected or indirectly connected to the connecting rod and the tail cap 44 can be disassembled. When the fixed clamp 31 and the movable clamp 32 are used to fix the device to the rod-shaped object, the bracket 8 needs to be removed from the internal thread sleeve 7.
[0037] In the description of this specification, the references to terms such as "embodiment," "one implementation," "some implementations," "illustrative implementation," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the described implementation or example is included in at least one implementation or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same implementation or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more implementations or examples.
[0038] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A convenient fixed projector, characterized in that: It includes a projector body (1), a fastener (2) fixed on the projector body (1), and a fixed clamping plate (31) and a movable clamping plate (32) spaced apart. The fixed clamping plate (31) and the movable clamping plate (32) have a close-to-each state and a far-from-each state. A connector (4) is provided between the fastener (2) and the fixed clamping plate (31). The connector (4) includes a tube body (41), a connecting rod (42), and a clamping member (43). The tube body (41) is located on the side of the fixing member (2) facing the fixed clamping plate (31). The connecting rod (42) is installed on the side of the fixed clamping plate (31) facing the tube body (41), and one end of the connecting rod (42) extends into the interior of the tube body (41). The clamping member (43) is located on the end of the tube body (41) near the fixed clamping plate (31). The clamping member (43) has a clamping state and a loosening state. In the clamping state, the clamping member (43) abuts against the connecting rod (42) to restrict the relative rotation of the tube body (41) and the connecting rod (42). In the loosening state, there is a gap between the clamping member (43) and the connecting rod (42), so that the tube body (41) can rotate relative to the connecting rod (42).
2. The convenient fixed projector according to claim 1, characterized in that, The connector (4) also includes a tail cap (44); one end of the tail cap (44) is sleeved on the outside of the tube body (41), the outer circumferential surface of the tube body (41) is provided with an external thread (45), and the inner wall of the tail cap (44) is provided with an internal thread (46) that mates with the external thread (45); the end of the tail cap (44) near the fixed clamping plate (31) is a tapered structure with a gradually narrowing inner diameter along the axial direction, the clamping member (43) is located inside the tail cap (44) and slides in cooperation with the tapered inner wall of the tail cap (44), the clamping member (43) is an elastic structure; by screwing the tail cap (44) to move it along the axial direction of the tube body (41), the clamping member (43) is driven to deform and switch between the clamping state and the loosening state.
3. A convenient fixed projector according to claim 1, characterized in that, The fixed clamp plate (31) also includes a suspension frame (421) and a transmission rod (422). The suspension frame (421) is located on the side of the fixed clamp plate (31) facing the tube body (41). The end of the connecting rod (42) away from the tube body (41) is connected to the suspension frame (421) through the transmission rod (422) to form a rotating pair. The connecting rod (42) can rotate around the transmission rod (422) in the opening area of the suspension frame (421).
4. A convenient fixed projector according to claim 3, characterized in that, The suspension frame (421) is provided with an angle adjustment mechanism (47) for positioning the rotation angle of the connecting rod (42).
5. A convenient fixed projector according to claim 4, characterized in that, The angle adjustment mechanism (47) includes a worm (471), a worm wheel (472), a connecting seat (473), and a handwheel (474). Both ends of the worm (471) are connected to the suspension frame (421) through the connecting seat (473). The worm (471) and the connecting seat (473) are rotatably connected. The transmission rod (422) is fixedly sleeved with a worm wheel (472) that meshes with the worm (471). The handwheel (474) is located at one end of the worm (471).
6. A convenient fixed projector according to claim 1, characterized in that, A transmission mechanism (5) is provided between the fixed clamping plate (31) and the movable clamping plate (32). The transmission mechanism (5) includes a threaded hole (51), a threaded rod (52), and a rocker arm (53). There are two threaded holes (51) located at both ends of the movable clamping plate (32). There are two threaded rods (52) located at both ends of the fixed clamping plate (31). One end of the threaded rod (52) passes through the threaded hole (51) on the same side and is threadedly connected to it. The end of the threaded rod (52) away from the movable clamping plate (32) is provided with a rocker arm (53).
7. A convenient fixed projector according to claim 1, characterized in that, The fixed clamping plate (31) and the movable clamping plate (32) each have an arc-shaped portion (33) that protrudes in the opposite direction. The fixed clamping plate (31) and the movable clamping plate (32) are both covered with a rubber layer (6).
8. A convenient fixed projector according to claim 1, characterized in that, The fixing member (2) also includes a bracket (8) placed on the ground. The upper end of the bracket (8) is provided with an external thread (9), and the fixing member (2) is provided with an internal thread sleeve (7) that cooperates with the external thread (9).
9. A convenient fixed projector according to claim 1, characterized in that, The outer surface of the connecting rod (42) is provided with anti-slip texture one (423), and the clamping member (43) is provided with anti-slip texture two (431) on the side near the connecting rod (42).