Vacuum damping adjusting mechanism and camera shooting auxiliary device

Abstract

The utility model belongs to the technical field of damping devices, and particularly relates to a vacuum damping adjusting mechanism and a camera shooting auxiliary device, which comprise a first connecting sleeve and a linkage shaft fixedly connected to the lower end of the first connecting sleeve, a second connecting sleeve is arranged in the upper end of the first connecting sleeve, and the second connecting sleeve is rotatably connected in the first connecting sleeve through a rotating piece. A damping adjusting column is arranged in the second connecting sleeve and can move in the vertical direction relative to the second connecting sleeve, the lower end of the damping adjusting column downwards extends out of the second connecting sleeve, a cavity is formed among the first connecting sleeve, the linkage shaft, the second connecting sleeve and the damping adjusting column, and the cavity is filled with damping oil. And a gap through which damping oil cannot pass is reserved between the lower end of the second connecting sleeve and the first connecting sleeve. The damping oil can block the gap between the first connecting sleeve and the second connecting sleeve, so that the sealing effect is achieved, the problem of uneven contact of the damping oil is solved, and a damping mechanism runs smoothly.

Description

Technical Field

[0001] This utility model belongs to the technical field of damping devices, specifically a vacuum damping adjustment mechanism and a camera auxiliary device. Background Technology

[0002] Camera auxiliary devices are tools that assist professional camera equipment in shooting, improving shooting results and ensuring the stability and uniformity of the camera equipment. These include other auxiliary devices such as sliders and gimbals. In order to achieve uniform sliding or rotation of the camera equipment, a damping structure is usually set on the camera auxiliary device, and the damping value can be adjusted.

[0003] The current adjustable damping structure includes a first connecting sleeve and a linkage shaft fitted inside and fixedly connected to the first connecting sleeve. The lower end of the linkage shaft is fixedly connected to the first connecting sleeve via a damping end cap, and a limiting post is fitted onto the upper end of the linkage shaft. A second connecting sleeve is located between the limiting post and the first connecting sleeve, and the second connecting sleeve and the first connecting sleeve can move relative to each other in the vertical direction. A follower valve is located between the first connecting sleeve and the linkage shaft, directly below the second connecting sleeve. The upper end of the follower valve abuts against the lower end of the limiting post, and the lower end of the follower valve abuts against the damping end cap via an elastic element. A cavity is formed between the first connecting sleeve, the limiting post, the second connecting sleeve, and the follower valve, and the cavity is filled with damping oil. When the second connecting sleeve moves vertically, the follower valve moves accordingly to ensure that the volume of damping oil in the cavity remains constant. Therefore, the contact area between the first and second connecting sleeves and the damping oil changes, thereby adjusting the damping magnitude.

[0004] To prevent damping oil leakage, the second connecting sleeve is sealed to the first connecting sleeve and the limiting post through sealing rings on both sides. Due to the presence of the sealing rings, the sealing rings and damping oil will come into contact, which increases unstable friction. It may even cause the damping structure to rotate erratically due to uneven contact with the damping oil, making it impossible to achieve smooth operation. Utility Model Content

[0005] To address the problems mentioned above, this utility model provides a vacuum damping adjustment mechanism and a camera auxiliary device. In the vacuum damping adjustment mechanism, the damping oil blocks the gap between the first connecting sleeve and the second connecting sleeve, thereby achieving a sealing effect, solving the problem of uneven contact of the damping oil, and enabling the damping mechanism to operate smoothly.

[0006] The first objective of this invention is to provide a vacuum damping adjustment mechanism, comprising a first connecting sleeve and a linkage shaft fixedly connected to the lower end of the first connecting sleeve. A second connecting sleeve is provided inside the upper end of the first connecting sleeve. The second connecting sleeve is rotatably connected to the first connecting sleeve via a rotating component. A damping adjustment column is provided inside the second connecting sleeve. The damping adjustment column can move vertically relative to the second connecting sleeve. The lower end of the damping adjustment column extends downward out of the second connecting sleeve. A cavity is formed between the first connecting sleeve, the linkage shaft, the second connecting sleeve, and the damping adjustment column. The cavity is filled with damping oil. A gap is left between the lower end of the second connecting sleeve and the first connecting sleeve, preventing the damping oil from passing through.

[0007] Furthermore, a filling chamber is provided inside the damping adjustment column, which is connected to the cavity, and a sealing element is provided inside the damping adjustment column to close the filling chamber.

[0008] Furthermore, a damping base is fitted on the outside of the first connecting sleeve, and the first connecting sleeve is rotatably connected to the damping base through a bearing, and the damping adjustment column moves up and down relative to the damping base.

[0009] Furthermore, a driving component is provided at the upper end of the damping base, which drives the damping adjustment column to move up and down.

[0010] Furthermore, the driving component includes a damping knob rotatably connected to the damping base. The bottom of the damping knob is provided with a threaded head, and the upper end of the damping adjustment column is provided with an internal thread. The threaded head extends into the damping adjustment column and is threadedly connected to the damping adjustment column.

[0011] Furthermore, a rotating component is fixedly connected to the lower end of the linkage shaft.

[0012] Furthermore, a fixed seat is fixedly connected to the lower end of the damping base, and the lower end of the rotating component is rotatably connected to the fixed seat through a bearing.

[0013] The second objective of this invention is to provide a camera assist device, including any of the aforementioned vacuum damping adjustment mechanisms. By utilizing this vacuum damping adjustment mechanism on the camera assist device, the sliding operation of the connecting components on the camera assist device is made smooth.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] (1) After the damping oil fills the cavity, the damping oil will block the gap between the first connecting sleeve and the second connecting sleeve, so that the viscous damping oil cannot pass through the gap during rotation, thereby achieving a sealing effect, solving the problem of uneven contact of damping oil, and enabling the damping mechanism to operate smoothly.

[0016] (2) When the damping adjustment column is adjusted to the appropriate height, the cavity is filled with damping oil. At this time, the damping force is the greatest because the damping oil cannot be compressed and the damping adjustment column has no space to move downward. At this time, the contact area between the damping adjustment column and the damping oil is the largest, so the damping force is the greatest. When the damping adjustment column moves upward, the volume of the cavity increases, and the cavity forms a vacuum cavity. The contact area between the damping adjustment column and the damping oil decreases, so the damping force decreases. Thus, the damping force is adjusted.

[0017] (3) The vacuum damping adjustment mechanism of this utility model is located at both ends of the camera auxiliary device in the length direction. The rotating part of the vacuum damping adjustment mechanism is a synchronous wheel fixedly connected to the lower end of the linkage shaft. A synchronous belt is fitted on the synchronous wheels on both sides of the camera auxiliary device, and a connecting component is fixed on the synchronous belt. This utility model uses the vacuum damping adjustment mechanism on the camera auxiliary device to make the sliding of the connecting component on the camera auxiliary device run smoothly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall structure of a vacuum damping adjustment mechanism;

[0020] Figure 2 A cross-sectional view of a vacuum damping adjustment mechanism;

[0021] Explanation of reference numerals in the attached drawings: 1. First connecting sleeve; 2. Linkage shaft; 3. Second connecting sleeve; 4. Rotating component; 5. Damping adjustment column; 50. Filling chamber; 6. Cavity; 7. Gap; 8. Damping base; 9. Driving component; 90. Damping knob; 91. Threaded head; 10. Rotating component; 11. Fixed seat. Detailed Implementation

[0022] 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. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] The following is in conjunction with the appendix Figure 1 To be continued Figure 2 The present invention will be described in detail with specific embodiments.

[0024] Reference Figures 1-2 The present invention provides a vacuum damping adjustment mechanism, comprising a first connecting sleeve 1 and a linkage shaft 2 fixedly connected to the lower end of the first connecting sleeve 1. A second connecting sleeve 3 is provided inside the upper end of the first connecting sleeve 1. The second connecting sleeve 3 is rotatably connected to the first connecting sleeve 1 through a rotating member 4. A damping adjustment column 5 is provided inside the second connecting sleeve 3. The damping adjustment column 5 can move vertically relative to the second connecting sleeve 3. The lower end of the damping adjustment column 5 extends downward out of the second connecting sleeve 3. A cavity 6 is formed between the first connecting sleeve 1, the linkage shaft 2, the second connecting sleeve 3 and the damping adjustment column 5. The cavity 6 is filled with damping oil. A gap 7 is left between the lower end of the second connecting sleeve 3 and the first connecting sleeve 1, which prevents the damping oil from passing through.

[0025] It should be noted that the rotating component 4 in this embodiment is preferably a bearing, and two rotating components 4 are provided. However, this utility model does not limit the structure and number of rotating components 4, as long as the first connecting sleeve 1 and the second connecting sleeve 3 can rotate relative to each other.

[0026] After the damping adjustment column 5 is adjusted to the appropriate height, damping oil is filled into the cavity 6. At this time, the damping force is the greatest because the damping oil cannot be compressed, and the damping adjustment column 5 has no space to move downward. At this time, the contact area between the damping adjustment column 5 and the damping oil is the largest, so the damping force is the greatest. When the damping adjustment column 5 moves upward, the volume of the cavity 6 increases, and the cavity 6 forms a vacuum cavity. The contact area between the damping adjustment column 5 and the damping oil decreases, so the damping force decreases. Thus, the damping force is adjusted.

[0027] After the damping oil fills the cavity 6, it will block the gap 7 between the first connecting sleeve 1 and the second connecting sleeve 3, preventing the viscous damping oil from passing through the gap 7 during rotation, thus achieving a sealing effect. This solves the problem of uneven contact of the damping oil and allows the damping mechanism to operate smoothly.

[0028] In a preferred embodiment, the damping adjusting column 5 has a filling chamber 50 connected to the cavity 6. The damping adjusting column 5 is equipped with a sealing element for sealing the filling chamber 50. Damping oil is added to the cavity 6 through the filling chamber 50, and then the filling chamber 50 is sealed by the sealing element, thus making the cavity 6 a sealed space. Furthermore, this invention does not specifically limit the structure of the sealing element; the sealing element can be a fixedly connected sealing plate, a plug inserted into the filling chamber 50, or other structures capable of sealing the filling chamber 50.

[0029] In a preferred embodiment, a damping base 8 is fitted on the outside of the first connecting sleeve 1. The first connecting sleeve 1 is rotatably connected to the damping base 8 through a bearing. The damping adjustment column 5 moves up and down relative to the damping base 8. A driving member 9 is provided at the upper end of the damping base 8. The driving member 9 drives the damping adjustment column 5 to move up and down.

[0030] Specifically, the driving component 9 includes a damping knob 90 rotatably connected to the damping base 8. The bottom of the damping knob 90 is provided with a threaded head 91, and the upper end of the damping adjustment column 5 is provided with an internal thread. The threaded head 91 extends into the damping adjustment column 5 and is threadedly connected to it. Rotating the damping knob 90 causes the threaded head 91 to rotate. Since the threaded head 91 is threadedly connected to the damping adjustment column 5, and the damping adjustment column 5 can only move vertically and cannot rotate, the threaded head 91 causes the damping adjustment column 5 to move up and down. Of course, this utility model does not limit the specific structure and driving method of the driving component 9. Those skilled in the art can also choose an electrically controlled driving method as needed, all of which fall within the protection scope of this utility model.

[0031] In a preferred embodiment, a rotating component 10 is fixedly connected to the lower end of the linkage shaft 2, and a fixed seat 11 is fixedly connected to the lower end of the damping base 8. The lower end of the rotating component 10 is rotatably connected to the fixed seat 11 via a bearing. Optionally, the rotating component 10 is a synchronous pulley, which enables connection to an external load component.

[0032] This utility model also provides a camera auxiliary device, including any of the above-mentioned vacuum damping adjustment mechanisms. The vacuum damping adjustment mechanisms of this utility model are located at both ends along the length of the camera auxiliary device. The rotating component 10 of the vacuum damping adjustment mechanism is a synchronous wheel fixedly connected to the lower end of the linkage shaft 2. Synchronous belts are fitted onto the synchronous wheels on both sides of the camera auxiliary device, and connecting components are fixed to the synchronous belts. This utility model utilizes this vacuum damping adjustment mechanism on the camera auxiliary device to ensure smooth sliding of the connecting components.

[0033] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A vacuum damping adjustment mechanism, characterized in that, The device includes a first connecting sleeve and a linkage shaft fixedly connected to the lower end of the first connecting sleeve. A second connecting sleeve is provided inside the upper end of the first connecting sleeve. The second connecting sleeve is rotatably connected to the first connecting sleeve through a rotating component. A damping adjustment column is provided inside the second connecting sleeve. The damping adjustment column can move vertically relative to the second connecting sleeve. The lower end of the damping adjustment column extends downward out of the second connecting sleeve. A cavity is formed between the first connecting sleeve, the linkage shaft, the second connecting sleeve, and the damping adjustment column. The cavity is filled with damping oil. A gap is left between the lower end of the second connecting sleeve and the first connecting sleeve to prevent the damping oil from passing through.

2. The vacuum damping adjustment mechanism according to claim 1, characterized in that, The damping adjustment column has a filling chamber that is connected to the cavity, and the damping adjustment column is provided with a sealing element for closing the filling chamber.

3. The vacuum damping adjustment mechanism according to claim 1, characterized in that, The first connecting sleeve is fitted with a damping base, and the first connecting sleeve is rotatably connected to the damping base through a bearing. The damping adjustment column moves up and down relative to the damping base.

4. The vacuum damping adjustment mechanism according to claim 3, characterized in that, The upper end of the damping base is provided with a driving component, which drives the damping adjustment column to move up and down.

5. The vacuum damping adjustment mechanism according to claim 4, characterized in that, The driving component includes a damping knob rotatably connected to the damping base. The bottom of the damping knob is provided with a threaded head, and the upper end of the damping adjustment column is provided with an internal thread. The threaded head extends into the damping adjustment column and is threadedly connected to the damping adjustment column.

6. The vacuum damping adjustment mechanism according to claim 3, characterized in that, A rotating component is fixedly connected to the lower end of the linkage shaft.

7. The vacuum damping adjustment mechanism according to claim 6, characterized in that, The lower end of the damping base is fixedly connected to a fixed seat, and the lower end of the rotating component is rotatably connected to the fixed seat through a bearing.

8. A camera auxiliary device, characterized in that, Includes the vacuum damping adjustment mechanism as described in any one of claims 1-7.

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