A projector mounting bracket

Abstract

This utility model relates to the field of projection equipment technology, and in particular to a projector mounting bracket, including a bracket main board and a ball joint. The end of the ball joint has a connecting part for connecting to the projector. The bracket main board has a ball joint mounting part, which has a recess for the ball joint to rotate within. The recess has a slot. The outer periphery of the ball joint mounting part has a limiting member for radially contracting the slot to limit the rotation of the ball joint. The front end of the bracket main board has a first connecting member for fixing the bracket main board to an external carrier. The end of the ball joint is also fitted with an adjusting nut that cooperates with the connecting part to adjust the projector's torsional travel. In this utility model, by using a universal thread or quick-release interface, combined with a one-handed operating limiting member and adjusting nut, a four-step integrated process of "installation-adjustment-locking-micro" can be achieved, significantly improving installation and maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of projection equipment technology, and in particular to a projector mounting bracket. Background Technology

[0002] Currently, most projector stands on the market adopt a ball joint structure to achieve multi-angle adjustment, such as the projector stand described in patent number CN201920676937.9. This structure is composed of multiple precision components such as a ball joint assembly, a drive rod, gears, racks, and springs. It mainly uses the drive rod to drive the hollow gear to mesh with the rack, thereby controlling the opening and closing of the clamp, and uses the hook-shaped spring and the slot to achieve fixation.

[0003] However, in practice, it has been found that most of these projector stands have relatively complex structures, resulting in high production costs and cumbersome assembly processes. Furthermore, the adjustment process requires operating the drive rod and adjustment wheel, which is complicated and cannot achieve quick fixation. Especially after high-frequency adjustment or long-term use, they are prone to loosening or displacement, affecting the stability of the projection. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of existing projector brackets, such as high production costs due to complex structure, cumbersome assembly process, and complicated usage steps, which make it impossible to achieve quick fixation. Therefore, a projector fixing bracket is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A projector mounting bracket is designed, comprising a main bracket 1 and a ball joint 2. The end of the ball joint 2 is provided with a connecting part 21 for connecting to the projector. The main bracket 1 is provided with a ball joint mounting part 3. The ball joint mounting part 3 is provided with a ball socket 31 for the ball joint 2 to be rotatably mounted therein. The ball socket 31 is provided with a slot 311. The outer periphery of the ball joint mounting part 3 is provided with a limiting member 32 for radially contracting the slot 311 to limit the rotation of the ball joint 2. The front end of the main bracket 1 is provided with a first connecting member 11 for fixing the main bracket 1 to an external carrier. The end of the ball joint 2 is also provided with an adjusting nut 22 that cooperates with the connecting part 21 to adjust the torsional stroke of the projector.

[0007] Furthermore, the limiting member 32 includes a locking part 321, a locking bolt 322, and a wrench 323. The locking part 321 is disposed on the outer periphery of the ball socket 31. The end of the wrench 323 is provided with a second connecting member 324 that cooperates with the locking bolt 322 to radially shrink the slot 311. The locking part 321 is provided with a through hole 325 for the locking bolt 322 and the second connecting member 324 to be inserted.

[0008] Furthermore, the universal ball mounting part 3 includes a fixed support plate 33 fixed on the main bracket 1 and a connecting base 34 disposed on the periphery of the ball socket 31. The connecting base 34 is provided with a fixing nut 341 that engages with the end of the fixed support plate 33.

[0009] Furthermore, the upper cover of the connecting base 34 is provided with a base pad 342 for reducing the distance between the connecting base 34 and the bracket motherboard 1.

[0010] Furthermore, the main board 1 of the bracket is recessed with a track groove 12 for the edge of the fixed support plate 33 to be slidably engaged therein.

[0011] Furthermore, the first connector 11 is a double-sided adhesive panel, one side of which is adhered to the main board 1 of the bracket and the other side is adhered to the external carrier.

[0012] Furthermore, the end of the universal ball 2 is also fitted with a gasket 23 disposed between the adjusting nut 22 and the projector.

[0013] The projector mounting bracket proposed in this utility model has the following advantages:

[0014] In this utility model, by adopting a universal thread or quick-release interface, and in conjunction with a limiter and adjusting nut for one-handed operation, a four-step integrated process of "installation-adjustment-locking-micro" can be realized, which significantly improves the efficiency of installation and maintenance.

[0015] Secondly, in this utility model, the unique combination of "grooved ball socket + outer peripheral limiting component" efficiently and directly transforms the rotational motion (axial force) of a bolt into the uniform radial contraction motion of the ball socket. This mechanism eliminates the complex gears, racks, levers, or multiple set screws of traditional brackets, achieving the most reliable and powerful locking force with the simplest structure, resulting in a compact structure and an extremely low failure rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a projector mounting bracket proposed in this utility model, viewed from the front.

[0017] Figure 2 for Figure 1 The diagram shows an exploded view of a projector mounting bracket.

[0018] Figure 3 This is a schematic diagram of the overall structure of a projector mounting bracket proposed in this utility model from the rear view.

[0019] Figure 4 for Figure 3 The diagram shows an exploded view of a projector mounting bracket.

[0020] In the diagram: 1. Main board of bracket; 11. First connector; 12. Track groove; 2. Universal ball; 21. Connecting part; 22. Adjusting nut; 23. Washer; 3. Universal ball mounting part; 31. Ball socket; 311. Slot; 32. Limiting part; 321. Locking part; 322. Locking bolt; 323. Wrench; 324. Second connector; 325. Through hole; 33. Fixed support plate; 34. Connecting base; 341. Fixed nut; 342. Base pad. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a projector mounting bracket includes a main bracket 1 and a ball joint 2. The end of the ball joint 2 has a connecting part 21 for connecting to the projector. The connecting part 21 serves as a mechanical interface between the ball joint 2 and the projector, and is typically a bolt structure, allowing direct fixing to the mounting holes on the projector. The main bracket 1 has a ball joint mounting part 3 for fixing and accommodating the ball joint. The ball joint mounting part 3 has a ball socket 31 for the ball joint 2 to be rotatably mounted therein, accommodating and constraining the ball joint, providing it with a track and space for rotation and sliding. The ball joint 2, as the core angle adjustment mechanism, allows for flexible multi-directional and multi-angle adjustment of the projector through rotation within the ball socket 31. The ball socket 31 has... The groove 311 is designed to create a controllable weak point or elastic deformation zone on the ball socket 31. The outer periphery of the universal ball mounting part 3 is provided with a limiting member 32 for radially contracting the groove 311 to limit the rotation of the universal ball 2. The limiting member 32 acts as a locking actuator and can cause the groove 311 to contract by applying external force (such as tightening the bolt). The front end of the bracket main board 1 is provided with a first connecting member 11 for fixing the bracket main board 1 to the external carrier. The end of the universal ball 2 is also fitted with an adjusting nut 22 that cooperates with the connecting part 21 to adjust the torsional stroke of the projector. After the main body of the universal ball 2 is locked, the adjusting nut 22 can provide a two-stage fine adjustment function, that is, by cooperating with the bolt of the connecting part 21, the projector can be tightened or loosened.

[0023] In this utility model, the process of using a projector mounting bracket is as follows: ① Installation: First, fix the bracket main board 1 to the target carrier using the first connecting piece 11. ② Coarse adjustment: The universal ball 2 rotates freely within the ball socket 31, quickly aligning the projector with the screen. ③ Locking: Adjust the limiting piece 32, whose radial compression slot 311 reduces the inner diameter of the ball socket, locking the universal ball around its circumference for stepless locking. ④ Fine adjustment: Keeping the universal ball stationary, rotate only the adjusting nut 22, using thread displacement to compensate for millimeter-level torsion of the projector, achieving precise focus or image edge alignment. If further adjustment is needed, simply loosen the limiting piece in the opposite direction to repeat the above steps. The entire process requires no disassembly of any parts, and the operation is completed in one step. This application, by adopting a universal thread or quick-release interface, combined with a one-handed operating limiting piece and adjusting nut, can achieve a four-step integrated process of "installation-adjustment-locking-fine adjustment," significantly improving installation and maintenance efficiency.

[0024] In detail, in this embodiment, the present application employs a combination design of a ball socket 31 with a slotted structure 311 and a limiting member 32. By operating the limiting member (e.g., tightening a bolt), the ball socket 31 can radially contract, thus uniformly gripping the universal ball like a "hand." This structure differs from the traditional complex methods using gears, racks, levers, or multiple bolts for tightening, achieving single-action control and multi-directional synchronous locking. This is a more direct and efficient force transmission method, with a simple structure, large and uniform locking force, and extremely high reliability.

[0025] To elaborate further, traditional projector stands often require loosening the main locking structure and then re-locking it after adjusting an angle, a rather cumbersome process. This application completely separates the functions of angle fixing (handled by the limiting component 32) and posture fine-tuning (handled by the adjusting nut 22). This allows users to first make coarse adjustments using the ball joint 2 and then firmly lock the main angle using the limiting component 32. Subsequently, if millimeter-level fine-tuning of the projector's level is required, only the adjusting nut 22 at the end needs to be operated, without disrupting the already locked main angle. This significantly improves adjustment efficiency and accuracy.

[0026] More specifically, in this embodiment, the universal ball 2 can be directly integrated onto the bracket motherboard 1, forming a compact and robust integrated load-bearing platform. This eliminates redundant structures such as multi-layer chassis and fixing plates, significantly reducing the overall thickness and achieving lightweight and simplified installation.

[0027] Furthermore, in this embodiment, as Figure 2 and Figure 4As shown, the limiting member 32 includes a locking part 321, a locking bolt 322, and a wrench 323. The locking part 321 is disposed on the outer periphery of the ball socket 31. The locking part 321 can be used to bear and transmit the force applied by the locking bolt 322 and convert it into a radial contraction force that deforms the ball socket. The wrench 323 provides the operator with a long lever arm, so that the user can easily apply sufficient torque to tighten the locking bolt 322, thereby achieving easy locking and loosening. The end of the wrench 323 is provided with a second connecting member 324 that is connected to the locking bolt 322 to radially contract the slot 311. One end of the connecting member 324 receives the axial thrust of the locking bolt 322, and the other end can convert the axial force into a radial compressive force on the locking part 321. The locking part 321 is provided with a through hole 325 for the locking bolt 322 and the second connecting member 324 to be inserted. This ensures that the locking bolt 322 and the second connecting member 324 can move along a preset axis without deviation. Furthermore, it can constrain the movement direction of the second connecting member 324 so that it can effectively convert the axial thrust into a radial contraction force.

[0028] In detail, in this embodiment, the operator can use a wrench 323 to tighten the locking bolt 322. The bolt 322 can be pushed forward and threadedly connected to the second connecting member 324. At this time, the thrust between the bolt 322 and the second connecting member 324 can cause the entire locking part 321 to undergo elastic deformation, thereby radially contracting and driving the ball socket 31 integrated with it to contract synchronously, ultimately uniformly gripping the universal ball 2 to achieve locking. This application, through the unique combination of "grooved ball socket + outer peripheral limiting member", efficiently and directly converts the rotational motion (axial force) of a bolt into the uniform radial contraction motion of the ball socket. This mechanism eliminates the complex gears, racks, levers or multiple set screws of traditional brackets, achieving the most reliable and powerful locking force with the simplest structure, with a compact structure and extremely low failure rate.

[0029] Furthermore, in this embodiment, as Figure 2 and Figure 4 As shown, the omnidirectional ball mounting part 3 includes a fixed support plate 33 fixed on the main board 1 and a connecting base 34 disposed on the periphery of the ball socket 31. The connecting base 34 serves as the base of the ball socket 31 and is an integrated structure on the periphery of the ball socket. The fixed support plate 33 can stably lift and fix the omnidirectional ball assembly on the main board and provide it with solid support, ensuring that the overall structure does not shake or deform during adjustment and locking. The connecting base 34 is provided with a fixing nut 341 that engages with the end of the fixed support plate 33. The nut 341 is hidden inside the connecting base 34 and can engage with the bolt (or screw) at the end of the fixed support plate 33. A quick, firm and detachable connection between the ball socket 31 and the fixed support plate 33 can be achieved through a central fastening point.

[0030] Furthermore, in this embodiment, as Figure 2and Figure 4 As shown, the upper cover of the connecting base 34 is provided with a base pad 342 to reduce the distance between the connecting base 34 and the main support plate 1. The base pad 342 can act as an adjustable gap compensation module, that is, to fill and adjust the axial space between the connecting base 34 and the main support plate 1 or the fixed support plate 33, so as to eliminate the gap caused by manufacturing tolerances or design reasons, and ensure that the connecting base 34 can be firmly pressed by the fixing nut 341, avoiding any possible loosening or shaking. This ensures that zero-clearance fit can be achieved between the modules in both production and maintenance, thereby improving the overall rigidity, stability and quality consistency of the product.

[0031] Furthermore, in this embodiment, as Figure 4 As shown, the main board 1 of the bracket is recessed with a track groove 12 for the edge of the fixed support plate 33 to slide and engage therein. This track groove 12 serves as a precise positioning and guiding mechanism on the main board 1, providing a preset and unique installation path and position for the fixed support plate 33 during installation, ensuring that the universal ball mounting part 3 can quickly and accurately align to its final installation position. Furthermore, this application simplifies the complex and cumbersome installation process, which originally required aligning multiple screw holes, into a simple "slide-engage-tighten" action. This greatly improves production assembly efficiency and the convenience of later maintenance, while ensuring the consistency of all product assembly and eliminating stress or performance problems caused by installation deviations.

[0032] Furthermore, in this embodiment, the first connector 11 is a double-sided adhesive panel. One side of the double-sided adhesive panel is adhered to the bracket main board 1, and the other side is adhered to the external carrier. This application simplifies the most complex and challenging "installation" steps in traditional brackets to the simplest "clean the surface - peel off the backing adhesive - stick and press firmly" action. This design fully considers the installation capabilities of ordinary users and avoids a series of troubles such as finding tools, drilling holes, worrying about damaging the wall or not being able to find the load-bearing keel, thus achieving true "zero-tool" installation.

[0033] Furthermore, in this embodiment, as Figure 2 and Figure 4 As shown, the end of the omnidirectional ball 2 is also fitted with a washer 23 between the adjusting nut 22 and the projector. As a protective and force distribution element, it can prevent the metal adjusting nut 22 from directly contacting and scratching or abrading the surface of the projector's casing. Secondly, it can also evenly distribute the concentrated force applied by the adjusting nut 22 to a larger area of ​​the projector casing, avoiding excessive local pressure that could cause deformation or damage to the casing.

[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A projector mounting bracket, characterized in that, The system includes a main support board (1) and a ball joint (2). The end of the ball joint (2) is provided with a connecting part (21) for connecting to the projector. The main support board (1) is provided with a ball joint mounting part (3). The ball joint mounting part (3) is provided with a ball socket (31) for the ball joint (2) to be rotatably mounted therein. The ball socket (31) is provided with a slot (311). The outer periphery of the ball joint mounting part (3) is provided with a limiting member (32) for radially shrinking the slot (311) to limit the rotation of the ball joint (2). The front end of the main support board (1) is provided with a first connecting member (11) for fixing the main support board (1) to an external carrier. The end of the ball joint (2) is also provided with an adjusting nut (22) that cooperates with the connecting part (21) to adjust the torsional stroke of the projector.

2. The projector mounting bracket according to claim 1, characterized in that: The limiting member (32) includes a locking part (321), a locking bolt (322), and a wrench (323). The locking part (321) is disposed on the outer periphery of the ball socket (31). The end of the wrench (323) is provided with a second connecting member (324) that cooperates with the locking bolt (322) to radially shrink the slot (311). The locking part (321) is provided with a through hole (325) for the locking bolt (322) and the second connecting member (324) to be inserted.

3. A projector mounting bracket according to claim 1, characterized in that: The universal ball mounting part (3) includes a fixed support plate (33) fixed on the main support plate (1) and a connecting base (34) disposed on the periphery of the ball socket (31). The connecting base (34) is provided with a fixing nut (341) that is connected to the end of the fixed support plate (33).

4. A projector mounting bracket according to claim 3, characterized in that: The connecting base (34) is covered with a base pad (342) for reducing the distance between the connecting base (34) and the bracket motherboard (1).

5. A projector mounting bracket according to claim 3, characterized in that: The main support plate (1) is recessed with a track groove (12) for the edge of the fixed support plate (33) to be slidably engaged therein.

6. A projector mounting bracket according to any one of claims 1 to 5, characterized in that: The first connector (11) is a double-sided adhesive panel, one side of which is attached to the main board of the bracket (1) and the other side is attached to the external carrier.

7. A projector mounting bracket according to claim 1, characterized in that: The end of the universal ball (2) is also fitted with a gasket (23) between the adjusting nut (22) and the projector.

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