A cantilevered support with damping adjustment

Abstract

The utility model provides a cantilever support with damping adjustment, including adjusting assembly, first support and second support, adjusting assembly includes knob, connecting bolt, pre -tightening nut, plane bearing and butterfly gasket, connecting bolt passes first fixed hole and second fixed hole along the direction of rotation axis, the head of connecting bolt is connected with first support, butterfly gasket, plane bearing and pre -tightening nut are sequentially arranged from inside to outside along the direction of rotation axis, connecting bolt passes butterfly gasket and plane bearing, pre -tightening nut is screwed with the tail of connecting bolt, butterfly gasket elastically abuts between the first end face of plane bearing and second support, pre -tightening nut is connected with the second end face of plane bearing, the case passes pre -tightening nut and sets up the compression of plane bearing and butterfly gasket in advance, makes the support between the formation steady preset damping force, when the user loosens knob, the support still can keep the attitude under certain damping support, avoids the instantaneous droop, and then it is convenient to carry out the accurate angle fine adjustment.

Description

Technical Field

[0001] This utility model relates to the field of cantilever brackets, and in particular to a cantilever bracket with damping adjustment. Background Technology

[0002] In the fields of photography, videography, and equipment support, cantilever brackets are a commonly used adjustment and fixing device, widely used for positioning equipment such as cameras, monitors, and lights. Traditional cantilever brackets usually use bolts for direct locking or simple friction structures to fix the joints, which often has the following problems during the adjustment process.

[0003] First, adjustment is inconvenient. When the locking mechanism of a traditional bracket is loosened, the support arm often droops or swings rapidly due to gravity, making it difficult to maintain stability in the middle position and causing difficulties for users to fine-tune the angle.

[0004] Secondly, there is a lack of intermediate damping states. Most supports only have two states: "fully locked" and "fully released." The lack of intermediate damping to maintain the posture results in repeated locking and probing during the adjustment process, which is inefficient.

[0005] Furthermore, some brackets suffer from complex structures or insufficient reliability. While some attempts to achieve damping by adding elastic elements or complex linkages, these often result in bulky structures, cumbersome adjustment procedures, or loosening and wear after prolonged use, affecting positioning accuracy and service life. They also suffer from poor feel and operability; when directly tightening the threads, the relationship between tightening torque and locking force is not linear, leading to a poor user experience and making it easy for components to deform or be damaged due to overtightening.

[0006] Therefore, there is a need for a cantilever bracket that can provide controllable damping during adjustment, while also being easy to operate and structurally reliable, to meet the needs of precise and efficient adjustment in the fields of photography and professional equipment support. Utility Model Content

[0007] The purpose of this invention is to provide a cantilever bracket with damping adjustment.

[0008] To achieve the objective of this utility model, a cantilever bracket with damping adjustment is provided, including an adjustment assembly, a first bracket, and a second bracket. The first bracket has a first fixing hole extending through it along the rotation axis, and a first conical surface is provided on the outer periphery of the first fixing hole. The second bracket has a second fixing hole extending through it along the rotation axis, and a second conical surface is provided on the outer periphery of the second fixing hole. The first and second conical surfaces are adjacent to each other. The adjustment assembly includes a knob, a connecting bolt, a preload nut, a plane bearing, and a butterfly washer. The connecting bolt passes through the first and second fixing holes along the rotation axis, and the head of the connecting bolt is connected to the first bracket. Next, the butterfly washer, the plane bearing, and the preload nut are arranged sequentially from the inside to the outside along the rotation axis. The connecting bolt passes through the butterfly washer and the plane bearing. The preload nut is threaded with the tail of the connecting bolt. The butterfly washer elastically abuts between the first end face of the plane bearing and the second bracket. The preload nut is connected to the second end face of the plane bearing. The knob is provided with a clearance hole and a threaded hole along the rotation axis. The preload nut is located in the clearance hole. The threaded hole is located on the outside of the preload nut based on the rotation axis and is connected to the tail thread. The knob is provided with a fastening edge on the edge of the clearance hole. The fastening edge is adjacent to the second end face of the plane bearing.

[0009] A further proposed solution is that the second fixing hole is provided with a positioning section and a receiving section from the inside to the outside along the direction of rotation. A support step is provided between the positioning section and the receiving section. The connecting bolt is clearance-fitted with the positioning section. The butterfly gasket and the flat bearing are located inside the receiving section. The butterfly gasket elastically abuts against the support step.

[0010] A further solution is to use a clearance fit between the planar bearing and the peripheral wall of the receiving section.

[0011] A further proposed solution is to have a first conical surface disposed on the radial inner peripheral wall of the first fixing hole, and a second conical surface disposed on the radial outer peripheral wall of the second fixing hole, with the second conical surface located inside the first fixing hole.

[0012] A further proposed solution is to have a first conical surface disposed on the radial outer peripheral wall of the first fixing hole, and a second conical surface disposed on the radial inner peripheral wall of the second fixing hole, with the first conical surface located inside the second fixing hole.

[0013] A further proposed solution is to have a first limiting hole in the first bracket, and to install the head of the connecting bolt into the first limiting hole and engage with it in a circumferential limiting fit.

[0014] A further embodiment is that the first bracket has two first conical surfaces on the outer periphery of the first fixing hole, the two first conical surfaces being located at both ends in the direction of rotation axis; the end of the second bracket has two hinge blocks, the two hinge blocks being located at both ends of the first fixing hole in the direction of rotation axis; the two hinge blocks are provided with second fixing holes through them in the direction of rotation axis; the two hinge blocks are provided with second conical surfaces at opposite ends, and the first conical surfaces are adjacent to the second conical surfaces on the same side; the head of the connecting bolt is connected to the first bracket through the adjacent hinge block on one side.

[0015] A further proposed solution is to provide a second limiting hole in the hinge block near the head of the connecting bolt, and to install the head of the connecting bolt into the second limiting hole and to engage with the second limiting hole in a circumferential limiting manner.

[0016] The beneficial effect of this utility model is that by pre-setting the compression amount of the plane bearing and the butterfly washer through the pre-tightening nut, a stable preset damping force is formed between the first bracket and the second bracket. When the user loosens the knob, the bracket can still maintain its posture under a certain damping support, avoiding instantaneous sagging, and thus facilitating precise angle fine adjustment.

[0017] Furthermore, after the knob is fully tightened, the tightening edge of the knob further presses against the plane bearing, and the tapered surface mating structure achieves the final rigid locking, meeting the requirement of firmly fixing the equipment. The entire adjustment process is linear and smooth, significantly improving the user experience.

[0018] Furthermore, the use of adjacent first and second conical surfaces ensures self-centering and uniform compression over a large area during locking, enhancing connection rigidity and stability and preventing wear and loosening caused by uneven loads. The combination of a plane bearing and a butterfly washer guarantees smooth knob rotation while providing controllable and durable damping force through the elastic deformation of the butterfly washer, resulting in minimal performance degradation over long-term use. The positioning section, receiving section, and support step within the second fixing hole further position and protect the internal components, making the overall structure more compact and stable.

[0019] Furthermore, by setting a first limiting hole in the first bracket, or a second limiting hole in the hinge block adjacent to the head of the connecting bolt, the circumferential limiting of the connecting bolt is achieved, preventing it from moving during adjustment and ensuring the effective operation of the damping adjustment mechanism. The symmetrical arrangement of the double hinge blocks and double conical surface structure further enhances the force balance and overall stability of the hinge area, making it suitable for applications requiring heavy equipment or higher rigidity. Major wear parts such as butterfly washers and flat bearings are easy to replace, and the damping force can be recalibrated and restored by pre-tightening the nuts, resulting in low maintenance costs and extended service life of the bracket.

[0020] In summary, this solution not only solves the problems of traditional cantilever brackets being prone to falling during adjustment and lacking intermediate damping, but also achieves an effective balance between operating feel, adjustment precision, structural strength, and long-term reliability through an ingenious structural layout. It is especially suitable for professional fields that require frequent and precise adjustments, such as photography, videography, and instrument support. Attached Figure Description

[0021] Figure 1 This is a structural diagram of an embodiment of the cantilever bracket of this utility model.

[0022] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0023] Figure 3 This is an exploded view of the fixed bracket of the cantilever bracket embodiment of this utility model.

[0024] Figure 4 This is a cross-sectional view of the cantilever bracket embodiment of this utility model at the fixed bracket.

[0025] Figure 5 yes Figure 1 Enlarged view of point B in the middle.

[0026] Figure 6 This is a cross-sectional view of the cantilever bracket embodiment of this utility model at the hinge bracket.

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0028] Reference Figures 1 to 6 The cantilever bracket includes an adjustment component 3, a first bracket 1, and a second bracket 2. The first bracket 1 can be used as a fixed bracket, and the second bracket 2 can be used as a swing arm. The first bracket 1 has a first fixing hole 11 through it along the rotation axis X. The first bracket 1 has two first conical surfaces 111 on the outer periphery of the first fixing hole 11. The two first conical surfaces 111 are located at both ends of the rotation axis X. The first conical surfaces 111 are set on the radial inner peripheral wall of the first fixing hole 11.

[0029] The lower end of the second bracket 2 is provided with two hinge blocks 21. The two hinge blocks 21 are located at both ends of the first fixing hole 11 based on the rotation axis direction X. The two hinge blocks 21 are provided with a second fixing hole 210 through the rotation axis direction X. The two hinge blocks 21 are respectively provided with a second conical surface 211 at their opposite ends. The second conical surface 211 is provided on the radial inner peripheral wall of the second fixing hole 210. The second conical surface 211 is located inside the first fixing hole 11. The first conical surface 111 is adjacent to the second conical surface 211 on the same side.

[0030] The adjustment assembly 3 includes a knob 35, a connecting bolt 31, a preload nut 34, a plane bearing 33, and a butterfly washer 32. The connecting bolt 31 passes through two hinge blocks 21 and the first bracket 1 along the rotation axis X, that is, the connecting bolt 31 passes through the first fixing hole 11 and the second fixing hole 210 along the rotation axis X. The hinge block 21 near the head of the connecting bolt 31 is provided with a second limiting hole 218. The head of the connecting bolt 31 is installed in the second limiting hole 218 and is circumferentially limited by the second limiting hole 218. The head of the connecting bolt 31 is connected to the first bracket 1 through the adjacency of one of the hinge blocks 21.

[0031] On the other side, the second fixing hole 210 of the hinge block 21 is provided with a positioning section 212 and a receiving section 213 in sequence from the inside to the outside along the rotation axis X. A support step is provided between the positioning section 212 and the receiving section 213. The butterfly gasket 32, the plane bearing 33 and the preload nut 34 are arranged in sequence from the inside to the outside along the rotation axis X. The connecting bolt 31 is clearance-fitted with the positioning section 212. The butterfly gasket 32 ​​and the plane bearing 33 are located in the receiving section 213. The butterfly gasket 32 ​​elastically abuts against the support step, and the plane bearing 33 is clearance-fitted with the peripheral wall of the receiving section 213.

[0032] The connecting bolt 31 passes through the butterfly washer 32 and the plane bearing 33. The preload nut 34 engages with the tail thread 312 of the connecting bolt 31. The butterfly washer 32 elastically abuts between the first end face of the plane bearing 33 and the second bracket 2. The preload nut 34 is connected to the second end face of the plane bearing 33.

[0033] The knob 35 is provided with a clearance hole 351 and a threaded hole 352 along the rotation axis X. The preload nut 34 is located inside the clearance hole 351, and the threaded hole 352 is located outside the preload nut 34 based on the rotation axis X and is connected to the tail thread 312. The knob 35 is provided with a fastening edge 353 at the edge of the clearance hole 351. The fastening edge 353 is adjacent to the second end face of the plane bearing 33. By tightening the knob 35, the fastening edge 353 can enter into the receiving section 213.

[0034] The cantilever bracket also includes another adjusting component 3 and a swing arm bracket 4. A third fixing hole 220 is provided through the upper end of the second bracket 2 along the rotation axis direction X. A third conical surface 221 is provided on the outer periphery of the third fixing hole 220 at the upper end of the second bracket 2, and the third conical surface 221 is located on the radial outer peripheral wall of the third fixing hole 220. A first limiting hole 228 is provided at the upper end of the second bracket 2, and the head of the connecting bolt 31 is installed in the first limiting hole 228 and circumferentially limited by the first limiting hole 228.

[0035] The upper end of the swing arm bracket 4 is provided with a fourth fixing hole 410 through the rotation axis X. The inner wall of the fourth fixing hole 410 is provided with a fourth conical surface 411, which is located on the radial inner peripheral wall of the fourth fixing hole 410. The fourth fixing hole 410 is provided with a positioning section 412 and a receiving section 413 in sequence from the inside to the outside along the rotation axis X. A support step is provided between the positioning section 412 and the receiving section 413. The butterfly shim 32, the plane bearing 33, and the preload nut 34 of the other adjusting component 3 are arranged in sequence from the inside to the outside along the rotation axis X. The connecting bolt 31 is clearance-fitted with the positioning section 212. The butterfly shim 32 and the plane bearing 33 are located in the receiving section 213. The butterfly shim 32 elastically abuts against the support step, and the plane bearing 33 is clearance-fitted with the peripheral wall of the receiving section 213. The third conical surface 221 is located in the fourth fixing hole 410 and is adjacent to the fourth conical surface 411.

[0036] In addition, based on the inventive concept of this case, the upper end structure of the second bracket 2 can be used as the first bracket of this case. It can be used as a fixed bracket or a swing bracket. The swing arm bracket 4 can be used as the second bracket of this case. The relative swing or relative fixation of the bracket can be adjusted according to the actual use requirements. Using the same fastening principle applied to the adjustment component 3 of this case, the preset damping fastening and rigid locking of the two brackets can be realized.

[0037] The second end of the swing arm bracket 4 is connected to a magic handle, which can be adjusted to different angles. The other end of the magic handle is connected to a mounting bracket, which is used to connect devices such as microphones, smart terminals, or photography equipment. Furthermore, in this embodiment, the inner and outer arrangements of the conical surface can be interchanged. All of the above modifications can achieve the purpose of this invention and are within the scope of protection of this invention.

[0038] As can be seen from the above, this case uses a pre-tightening nut to pre-set the compression of the plane bearing and the butterfly washer, so that a stable preset damping force is formed between the first bracket and the second bracket. When the user loosens the knob, the bracket can still maintain its posture under a certain damping support, avoiding instantaneous sagging, and thus facilitating precise angle fine-tuning.

Claims

1. A cantilever bracket with adjustable damping, characterized in that, Includes adjustment components, a first support, and a second support; The first bracket has a first fixing hole through it along the axis of rotation, and a first conical surface is provided on the outer periphery of the first fixing hole. The second bracket has a second fixing hole through it along the axis of rotation, and a second conical surface is provided on the outer periphery of the second fixing hole. The first conical surface is adjacent to the second conical surface. The adjustment assembly includes a knob, a connecting bolt, a preload nut, a plane bearing, and a butterfly washer. The connecting bolt passes through the first fixing hole and the second fixing hole along the rotation axis. The head of the connecting bolt is connected to the first bracket. The butterfly washer, the plane bearing, and the preload nut are arranged sequentially from the inside to the outside along the rotation axis. The connecting bolt passes through the butterfly washer and the plane bearing. The preload nut is threadedly engaged with the tail of the connecting bolt. The butterfly washer elastically abuts against the first end face of the plane bearing and the second bracket. The preload nut is connected to the second end face of the plane bearing. The knob is provided with a clearance hole and a threaded hole along the direction of the rotating shaft. The preload nut is located in the clearance hole. The threaded hole is located on the outside of the preload nut based on the direction of the rotating shaft and is threadedly connected to the tail end. The knob is provided with a fastening edge at the edge of the clearance hole. The fastening edge is adjacent to the second end face of the planar bearing.

2. The cantilever bracket according to claim 1, characterized in that: The second fixing hole is provided with a positioning section and a receiving section from the inside to the outside along the direction of the rotating shaft. A supporting step is provided between the positioning section and the receiving section. The connecting bolt is clearance-fitted with the positioning section. The butterfly gasket and the plane bearing are located in the receiving section. The butterfly gasket elastically abuts against the supporting step.

3. The cantilever bracket according to claim 2, characterized in that: The planar bearing is clearance-fitted with the peripheral wall of the receiving section.

4. The cantilever bracket according to claim 1, characterized in that: The first conical surface is disposed on the radial inner peripheral wall of the first fixing hole, and the second conical surface is disposed on the radial outer peripheral wall of the second fixing hole, with the second conical surface located inside the first fixing hole.

5. The cantilever bracket according to claim 1, characterized in that: The first conical surface is disposed on the radial outer peripheral wall of the first fixing hole, and the second conical surface is disposed on the radial inner peripheral wall of the second fixing hole, with the first conical surface located inside the second fixing hole.

6. The cantilever bracket according to any one of claims 1 to 5, characterized in that: The first bracket is provided with a first limiting hole, and the head of the connecting bolt is installed in the first limiting hole and is circumferentially limited by the first limiting hole.

7. The cantilever bracket according to any one of claims 1 to 5, characterized in that: The first bracket has two first conical surfaces on the outer periphery of the first fixing hole, and the two first conical surfaces are located at both ends of the rotation axis direction. The second bracket has two hinge blocks at its end, and the two hinge blocks are located at both ends of the first fixing hole based on the rotation axis direction. The two hinge blocks are provided with the second fixing hole through the rotation axis direction. The two hinge blocks are provided with second conical surfaces at opposite ends, and the first conical surface is adjacent to the second conical surface on the same side. The head of the connecting bolt is connected to the first bracket via the adjacent hinge block on one side.

8. The cantilever bracket according to claim 7, characterized in that: The hinge block near the head of the connecting bolt is provided with a second limiting hole, and the head of the connecting bolt is installed in the second limiting hole and is circumferentially limited by the second limiting hole.

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