A camera crane with a lifting gear shift type dynamic balance tripod

Abstract

This invention relates to the field of photographic and video equipment technology, and discloses a camera / camcorder lifting and shifting dynamic balance tripod. It includes a foldable support unit, a fixed cylinder unit, a moving cylinder unit, a mounting unit, and a mounting head. The core of the tripod utilizes multiple sets of gas springs in conjunction with a shifting adjustment mechanism to achieve multiple load-bearing capacities through grouped shifting. In use, simply adjusting the shift knob switches the number and combination of gas springs in operation, ensuring the total support force of the gas springs matches the total weight of the mounted camera / camcorder. This eliminates the need for repeated inflation and deflation of the gas cylinders, enabling rapid and dynamic balance of the equipment's vertical lifting. This not only allows photographers to quickly adjust the equipment height and vertical shooting angle, significantly improving shooting efficiency, but also avoids the aging of seals caused by repeated inflation and deflation of the gas cylinders, extending the equipment's lifespan.

Description

Technical Field

[0001] This invention relates to the field of photographic and video equipment technology, specifically to a dynamic balance tripod for cameras and camcorders with adjustable height and gear shifting. Background Technology

[0002] In the fields of photography and videography, tripods are core auxiliary equipment for ensuring the stability of shooting equipment and enabling diverse shooting movements. With the rapid development of industries such as video creation, commercial live streaming, and film and television shooting, pneumatic dynamic balance tripods with vertical lifting functions are becoming increasingly widely used. Their core advantage lies in their ability to smoothly adjust the vertical height of shooting equipment and to achieve unlocked hovering at any position within the lifting range, meeting diverse shooting needs such as vertical shooting and switching between high and low angles, greatly improving the convenience of shooting operations and the freedom of creative expression.

[0003] Currently, most pneumatic lift-type dynamic balance tripods on the market use a single-cylinder pneumatic structure as the core of their balance support. By filling the cylinder with compressed gas, the cylinder's output support force matches the load weight of the shooting equipment, thus achieving dynamic balance and hovering functions. However, in practical applications, this type of structure has significant technical drawbacks: First, the balance adjustment efficiency is extremely low, making it unsuitable for applications with rapidly changing loads. During shooting, users often need to change camera bodies and lenses, or add auxiliary accessories such as microphones, fill lights, and monitors, causing frequent changes in the total load weight at the shooting end. The output support force of the single-cylinder structure can only be adjusted by inflating and deflating the cylinder. After each load change, external tools such as air pumps must be used to repeatedly inflate and deflate the cylinder to readjust the cylinder's support force to match the new load. The balance adjustment process is cumbersome and time-consuming. Especially in scenarios with high time requirements and complex working environments, such as outdoor shooting and live event broadcasting, the cumbersome inflation and deflation adjustments can easily cause users to miss the best shooting opportunity, failing to meet the needs of efficient shooting. Secondly, core components are prone to wear and tear, resulting in a short equipment lifespan and high maintenance and operating costs. The single-cylinder structure requires frequent inflation and deflation operations, causing the internal seals to be subjected to alternating air pressure impacts and reciprocating friction over a long period. This easily leads to wear, aging, and failure, resulting in air leakage. This directly reduces dynamic balance accuracy and may even cause the loss of balance and hovering function. Once the seals fail, the cylinder must be disassembled and the seals replaced, making subsequent maintenance complex and costly. The rapid aging of the seals also directly shortens the lifespan of the tripod's core components. Some low-specification cylinder products even experience irreversible leakage after a short period of use, requiring complete cylinder replacement, further increasing user costs.

[0004] In summary, existing pneumatic dynamic balancing tripods suffer from low balance adjustment efficiency, cumbersome operation, inability to adapt to rapidly changing load requirements, and high maintenance and operating costs due to the easy wear and tear of core components. These technical shortcomings have become key bottlenecks restricting the development of related technologies and the improvement of user experience in this field. Therefore, developing a dynamic balancing tripod that can quickly adjust support capacity without inflation or deflation, adapt to different load weights, is easy to operate, and has a long service life has become an urgent technical problem to be solved in this field. Summary of the Invention

[0005] To address the problems in the prior art, this invention provides a camera / camcorder lifting and shifting dynamic balance tripod, which is achieved through the following technical solution.

[0006] A camera / camcorder lifting and shifting dynamic balance tripod includes a support unit, a fixed cylinder unit connected inside the support unit, a movable cylinder unit installed inside the fixed cylinder unit, a mounting unit connected to the upper end of the movable cylinder unit, and a mounting pan-tilt head mounted on the mounting unit. The fixed cylinder unit includes a fixed cylinder and a fixed cylinder mounting seat fixedly connected to the fixed cylinder. The fixed cylinder is provided with a shift fork positioning assembly inside, and a limit slide is provided on the outside of the shift fork positioning assembly. A locking button is installed on the fixed cylinder. The moving cylinder unit includes a moving cylinder and a slide rail disposed on the outside of the moving cylinder. A moving cylinder fixing assembly is connected to the moving cylinder, and a gear adjusting assembly is installed at the upper end of the moving cylinder. The shift fork positioning assembly includes a gas rod mounting plate and a telescopic gas rod mounted on the gas rod mounting plate. A gas rod upper positioning seat is mounted on one end of the telescopic gas rod, and a shift fork positioning disc is mounted on the upper side of the gas rod upper positioning seat. The shift fork positioning disc includes an upper pressure cover and a shift shaft structure disposed inside the upper pressure cover. A shift body is installed on the outer side of the shift shaft structure, and a shift positioning disc is installed on the outer side of the shift body. A sliding shift fork is installed inside the shift positioning disc. The gear adjustment assembly includes a gear adjustment knob and a fixed insert shaft fixedly connected to one end of the gear adjustment knob. A second positioning hole is provided on the outer side of the fixed insert shaft, and a knob locking post is provided on the outer side of the second positioning hole. A third spring is provided on the knob locking post.

[0007] Preferably, the paddle shaft structure includes a paddle shaft body and a first positioning hole opened on the outside of the paddle shaft body. An upper insertion rod is connected to the upper end of the paddle shaft body, and a lower insertion rod is connected to the lower end of the paddle shaft body. A positioning steel ball is provided on the outside of the paddle shaft body, and a first spring is provided on the outside of the positioning steel ball.

[0008] Preferably, the sliding fork includes a fork plate and a gas rod mating hole formed in the fork plate, and a second spring is provided on one side of the fork plate.

[0009] Preferably, the telescopic air rod has an air rod slot, the telescopic air rod is inserted into the air rod mating hole, and the air rod mating hole and the air rod slot form a snap-fit ​​engagement.

[0010] Preferably, the moving cylinder fixing assembly includes a moving cylinder fixing sleeve and a moving cylinder top plate disposed inside the moving cylinder fixing sleeve, and a knob mounting sleeve is disposed on the moving cylinder top plate, and a fixing pressure plate is mounted on the knob mounting sleeve.

[0011] Preferably, a moving cylinder positioning block is provided on one side of the locking button, and the moving cylinder positioning block is positioned and fixed by bolts.

[0012] Preferably, the support unit includes a fixed support assembly and a movable support assembly mounted on the fixed support assembly. A central locking sleeve is provided on one side of the movable support assembly. The movable support assembly and the central locking sleeve are fixedly connected by a rotating connecting rod. A first locking lever is installed on the central locking sleeve.

[0013] Preferably, the fixed bracket assembly includes a base and a fixed foot mounted on the base, and a lower fixed frame is connected to the fixed foot. An intermediate fixed tube is mounted on the lower fixed frame, and an upper fixed frame is fixedly connected to the upper end of the intermediate fixed tube. A second locking lever is provided on the upper fixed frame.

[0014] Preferably, the movable support assembly includes a lower movable frame and a movable tube fixedly connected to the lower movable frame, and the other end of the movable tube is fixedly connected to an upper movable frame.

[0015] Preferably, the mounting unit includes a mounting flange and a mounting ball seat fixedly connected to the mounting flange, the mounting flange being fixedly connected to the fixing pressure plate by bolts.

[0016] The present invention has the following beneficial effects: 1. This design solves the core pain point of existing pneumatic lifting tripods, eliminating the need for repeatedly inflating and deflating the cylinders to adjust balance. Whether changing equipment or adding / removing accessories causing weight changes, simply turning the adjustment mechanism quickly switches to the corresponding load capacity level, completing balance adjustment in just a few seconds. No additional air pump is needed. It can be adjusted anytime, anywhere, whether in indoor studio shooting or outdoor environments without power or tools. It is particularly suitable for mobile filming, live streaming events, and outdoor photography, significantly saving adjustment time and ensuring no delays in the shooting schedule.

[0017] 2. Through the combination of multiple telescopic gas springs, it can cover a wide range of equipment weights, from light to heavy, and find a matching support level to achieve smooth lifting and stable hovering of the equipment at any height. It provides more freedom in vertical shooting space, whether it is low-angle shooting, high-angle shooting, or shooting with vertical camera movement, it can be easily achieved without repeatedly moving the tripod or placing things to adjust the height.

[0018] 3. High adjustment precision, clear gear positions, and strong safety in use. The gear adjustment component has clear gear markings and locking points. There is a distinct click when the gear is turned to the corresponding position, preventing slippage and allowing photographers to precisely control the adjustment range. After proper balance adjustment, the equipment maintains stable dynamic balance throughout the entire lifting stroke, preventing sudden drops or rebounds. When shooting with lifting and moving cameras, the footage remains stable and shake-free throughout, eliminating concerns about the equipment falling and breaking. Safety and shooting quality are both guaranteed. Attached Figure Description

[0019] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 : A schematic diagram of the overall structure of this invention; Figure 2 : A schematic diagram of the support unit in this invention; Figure 3 : A schematic diagram of the structure of the fixed support assembly and the movable support assembly in this invention; Figure 4 : A schematic diagram of the structure of the fixed cylinder unit in this invention; Figure 5 : A schematic diagram of the structure of the shift fork positioning component in this invention; Figure 6 : A schematic diagram of the connection between the moving cylinder unit and the mounting unit in this invention; Figure 7 This invention Figure 6 Enlarged structural diagram at point A; Figure 8 : A schematic cross-sectional view of the fixed cylinder unit and the moving cylinder unit in this invention; Figure 9 This invention Figure 8 Enlarged structural diagram at point B; Figure 10 : A schematic diagram of the gear adjustment component in this invention; Figure 11: A schematic diagram of the connection between the telescopic air rod, the positioning seat on the air rod, and the positioning disk of the shift fork in this invention; Figure 12 : Exploded view of the positioning disc component of the shift fork in this invention; Figure 13 : A schematic diagram of the paddle shaft structure in this invention; Figure 14 : An exploded structural diagram of the connection between the telescopic gas rod, the paddle body, and the sliding fork in this invention.

[0021] The attached figures are labeled as follows: 10. Support unit; 11. Fixed support assembly; 111. Base; 112. Fixed foot; 113. Lower fixed frame; 114. Intermediate fixed tube; 115. Upper fixed frame; 116. Second locking lever; 12. Movable support assembly; 121. Lower movable frame; 122. Movable tube; 123. Upper movable frame; 13. Central locking sleeve; 14. First locking lever; 15. Rotating connecting rod; 20. Fixed cylinder unit; 21. Fixed cylinder; 22. Fixed cylinder upper mounting seat; 23. Shift fork positioning assembly; 231. Air rod mounting plate; 232. Telescopic air rod; 2321. Air rod slot; 233. Air rod upper positioning seat; 234. Shift fork positioning disc; 2341. Upper pressure cover; 2342. Shifter shaft structure; 23421. Shifter shaft body; 23422. First positioning hole; 23423. Upper insertion rod; 23424. Lower insertion rod; 23425. Positioning steel ball; 23426. First spring; 2343. Shifter positioning disc; 2344. Shifter body; 2345. Sliding shift fork; 23451. Shift fork plate; 23452. Air rod mating hole; 23453. Second spring; 24. Limiting slide; 25. Locking button; 251. Moving cylinder positioning block; 30. Moving cylinder unit; 31. Moving cylinder; 32. Slide rail; 33. Moving cylinder upper fixing assembly; 331. Moving cylinder fixing sleeve; 332. Moving cylinder top plate; 333. Knob mounting sleeve; 334. Fixing pressure plate; 34. Gear adjustment assembly; 341. Gear adjustment knob; 342. Fixing insert shaft; 343. Second positioning hole; 344. Knob locking pin; 345. Third spring; 40. Mounting unit; 41. Mounting flange; 42. Mounting ball seat; 50. Install the gimbal. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0023] Reference Figure 1 and Figures 4 to 14 As shown in the first embodiment of the present invention, a camera / camcorder lifting and shifting dynamic balance tripod is provided, including a fixed cylinder unit 20 including a fixed cylinder 21 and a fixed cylinder upper mounting seat 22 fixedly connected to the fixed cylinder 21. The fixed cylinder 21 is provided with a shift fork positioning component 23, and a limit slide 24 is provided on the outside of the shift fork positioning component 23. A locking button 25 is installed on the fixed cylinder 21. The moving cylinder unit 30 includes a moving cylinder 31 and a slide rail 32 provided on the outside of the moving cylinder 31. A moving cylinder upper fixing component 33 is connected to the moving cylinder 31, and a shifting component 34 is installed on the upper end of the moving cylinder 31. The fixed cylinder mounting base 22 is fixedly connected to the upper end of the fixed cylinder 21, and the locking button 25 is rotatably connected to the upper end of the movable support assembly 12. The shift fork positioning assembly 23 is installed inside the fixed cylinder 21, with its lower end fixedly connected to the bottom end of the fixed cylinder 21 and its upper end in contact with the moving cylinder unit 30. The limiting slide 24 is fixedly installed inside the upper end of the fixed cylinder 21 by bolts and is distributed at equal angles. Furthermore, the movable cylinder 31 is disposed inside the fixed cylinder 21, specifically between the fixed cylinder 21 and the shift fork positioning assembly 23, and can slide up and down within it. The fixed assembly 33 on the movable cylinder is disposed on the upper end of the shift fork positioning assembly 23 and is fixedly connected to the slide rail 32. At the same time, the slide rail 32 slides within the limiting slide block 24, and the movement of the movable cylinder 31 is limited by the sliding of the slide rail 32 in the limiting slide block 24. Furthermore, the gear adjusting assembly 34 is fixedly connected to the upper end of the fixed assembly 33 on the movable cylinder by bolts. Furthermore, a moving cylinder positioning block 251 is provided on one side of the locking button 25, and the moving cylinder positioning block 251 is positioned and fixed by bolts. The moving cylinder positioning block 251 passes through the fixed cylinder 21 and contacts the moving cylinder 31. By rotating the locking button 25, the moving cylinder positioning block 251 can be tightened so that it fits tightly with the moving cylinder 31, thereby positioning and fixing the position of the moving cylinder 31.

[0024] The shift fork positioning assembly 23 includes a gas rod mounting plate 231 and a telescopic gas rod 232 mounted on the gas rod mounting plate 231. A gas rod upper positioning seat 233 is mounted on one end of the telescopic gas rod 232, and a shift fork positioning disc 234 is mounted on the upper side of the gas rod upper positioning seat 233. One end of the telescopic gas rod 232 is fixedly connected to the gas rod mounting plate 231, and the other end is connected to the gas rod upper positioning seat 233 and the shift fork positioning disc 234. Furthermore, the telescopic gas rod 232 is evenly provided with four positions. The shift fork positioning disc 234 includes an upper pressure cover 2341 and a shift shaft structure 2342 disposed inside the upper pressure cover 2341. A shift body 2344 is installed on the outer side of the shift shaft structure 2342, and a shift positioning disc 2343 is installed on the outer side of the shift body 2344. A sliding shift fork 2345 is installed inside the shift positioning disc 2343. The upper pressure cover 2341 is installed on the outer side of the shift shaft structure 2342, while the shift positioning disc 2343, the shift body 2344, and the sliding shift fork 2345 are installed on the shift shaft structure 2342 and located below the upper pressure cover 2341. Furthermore, a through hole is opened at the center of the shift positioning disc 2343, and the shift body 2344 is installed in the through hole. At the same time, the sliding shift fork 2345 is installed in the shift positioning disc 2343 and is connected to the shift body 2344. The paddle shifter structure 2342 includes a paddle shifter body 23421 and a first positioning hole 23422 opened on the outer side of the paddle shifter body 23421. An upper insertion rod 23423 is connected to the upper end of the paddle shifter body 23421, and a lower insertion rod 23424 is connected to the lower end of the paddle shifter body 23421. A positioning steel ball 23425 is provided on the outer side of the paddle shifter body 23421, and a first spring 23426 is provided on the outer side of the positioning steel ball 23425. The first positioning holes 23422 are evenly distributed on the outer side of the paddle shifter body 23421 and cooperate with the positioning steel balls 23425. Meanwhile, the positioning steel balls 23424... 25 and the first spring 23426 are disposed inside the upper pressure cover 2341. The first spring 23426 pushes the positioning steel ball 23425 to engage with the first positioning hole 23422, which can initially position the rotation of the paddle shaft body 23421. Furthermore, the upper insertion rod 23423 and the lower insertion rod 23424 have uniform polygonal cross sections, so that the upper insertion rod 23423 cooperates with the fixed insertion shaft 342, and the lower insertion rod 23424 cooperates with the paddle body 2344. Therefore, when the gear adjustment knob 341 is rotated, the paddle shaft structure 2342 can be rotated, which in turn drives the paddle body 2344 to rotate. The sliding fork 2345 includes a fork plate 23451 and a gas rod mating hole 23452 opened in the fork plate 23451. A second spring 23453 is provided on one side of the fork plate 23451. The fork plate 23451 and the second spring 23453 are fixedly connected. The second spring 23453 is used to press and reset the position of the fork plate 23451 to ensure contact between the fork plate 23451 and the paddle body 2344. The sliding fork 2345 can be moved accordingly by the rotation of the paddle body 2344. Furthermore, the telescopic air rod 232 is provided with an air rod slot 2321, and the telescopic air rod 232 is inserted into the air rod mating hole 23452, and the air rod mating hole 23452 and the air rod slot 2321 form a snap-fit ​​engagement.

[0025] The moving cylinder fixing assembly 33 includes a moving cylinder fixing sleeve 331 and a moving cylinder top plate 332 disposed inside the moving cylinder fixing sleeve 331. A knob mounting sleeve 333 is disposed on the moving cylinder top plate 332, and a fixing pressure plate 334 is mounted on the knob mounting sleeve 333. The gear adjusting assembly 34 includes a gear adjusting knob 341 and a fixing insert shaft 342 fixedly connected to one end of the gear adjusting knob 341. A second positioning hole 343 is opened on the outer side of the fixing insert shaft 342. A knob locking pin 344 is disposed on the outer side of the second positioning hole 343, and a third spring 345 is disposed on the knob locking pin 344. The moving cylinder fixing sleeve 331 is fixedly connected to the moving cylinder 31, and the moving cylinder top plate 332, the knob mounting sleeve 333 and the fixing pressure plate 334 are connected together by bolts. At the same time, the adjustment component 34 is installed inside the knob mounting sleeve 333, so that the adjustment component 34 can rotate therein. Furthermore, the moving cylinder top plate 332 contacts the upper end of the telescopic air rod 232. The telescopic movement of the telescopic air rod 232 can push the moving cylinder top plate 332 to move, and then through the connection with the moving cylinder fixing sleeve 331, the fixing component 33 on the moving cylinder can move up and down as a whole. The second positioning holes 343 are evenly distributed on the outer side of the fixed insert shaft 342 and are connected to the knob locking pin 344. The end of the knob locking pin 344 that engages with the second positioning hole 343 is curved to facilitate the movement of the knob locking pin 344 when the gear adjustment knob 341 is rotated. At the same time, the third spring 345 is fixedly connected to one side of the knob locking pin 344 to keep the knob locking pin 344 in engagement with the second positioning hole 343, which is used to position the gear adjustment knob 341 when it is rotated.

[0026] Furthermore, the lower end of the fixed insertion shaft 342 is provided with an insertion groove, and the cross-section of the insertion groove is polygonal; the cross-section of the upper insertion rod 23423 is a polygonal shape that matches the insertion groove, and the upper insertion rod 23423 is inserted into the insertion groove. Furthermore, the lower insertion rod 23424 has a polygonal cross-section and is adapted to be inserted into the receiving cavity of the paddle body 2344; the outer side wall of the paddle body 2344 is provided with a wave-shaped fitting structure, which is adapted to the paddle fork plate 23451. Furthermore, the paddle positioning disc 2343, the paddle body 2344, the sliding paddle fork 2345, and the telescopic gas rod 232 cooperate with each other to form a linkage mechanism, and the linkage mechanism is provided in four sets.

[0027] The mounting unit 40 includes a mounting flange 41 and a mounting ball seat 42 fixedly connected to the mounting flange 41. The mounting flange 41 is fixedly connected to the fixed pressure plate 334 by bolts.

[0028] By rotating the gear shift knob 341, the paddle shaft structure 2342 connected to the fixed insert shaft 342 is driven to rotate. At the same time, the paddle body 2344 is connected to the lower insert rod 23424, so that the paddle body 2344 rotates synchronously. Due to the wave-shaped fitting structure of the outer wall of the paddle body 2344, it cooperates with the shift fork plate 23451, which can push the shift fork plate 23451 to move. At the same time, since the shift fork plate 23451 is engaged in the gas rod slot 2321, the movement of the shift fork plate 23451 can control whether it is engaged and fixed in the gas rod slot 2321. Furthermore, since the linkage mechanism consisting of the paddle positioning plate 2343, the paddle body 2344, the sliding paddle fork 2345, and the telescopic air rod 232 is configured in four groups, and the positions of the paddle body 2344 in each group are staggered, the four groups rotate simultaneously, and the contact with the paddle fork plate 23451 is different, which drives the movement of the paddle fork plate 23451 to be different. As a result, the engagement of the four paddle fork plates 23451 with the air rod slot 2321 is also different. In this way, multiple combinations can be made so that different numbers of telescopic air rods 232 are in the working state in different situations, with a minimum of 0 and a maximum of 4, to meet different working states. Furthermore, by connecting the knob locking pin 344, the third spring 345, and the second positioning hole 343, and by connecting the first positioning hole 23422, the positioning steel ball 23425, and the first spring 23426, the rotation of the gear adjustment knob 341 can be positioned to display different fixed rotation angles, forming a clear gear position and ensuring the accuracy and stability of the adjustment. Example 2

[0029] Combination Figures 1-3As shown, this is the second embodiment of the present invention. Based on embodiment 1, the support unit 10 includes a fixed support assembly 11 and a movable support assembly 12 mounted on the fixed support assembly 11. A central locking sleeve 13 is provided on one side of the movable support assembly 12. The movable support assembly 12 and the central locking sleeve 13 are fixedly connected by a rotating connecting rod 15. A first locking lever 14 is mounted on the central locking sleeve 13. The movable support assembly 12 is mounted on the fixed support assembly 11 and can move up and down on the fixed support assembly 11. At the same time, the shift fork positioning assembly 23 is mounted on the fixed cylinder 21 and can be fixed by the first locking lever 14. The rotating connecting rod 15 is rotatably connected to the central locking sleeve 13, and its other end is rotatably connected to the movable support assembly 12. Furthermore, three sets of support units 10 are evenly distributed on the outside of the fixed cylinder 21.

[0030] The fixed support assembly 11 includes a base 111 and a fixed foot 112 mounted on the base 111. A lower fixed frame 113 is connected to the fixed foot 112. An intermediate fixed tube 114 is mounted on the lower fixed frame 113. An upper fixed frame 115 is fixedly connected to the upper end of the intermediate fixed tube 114. A second locking lever 116 is provided on the upper fixed frame 115. The movable support assembly 12 includes a lower movable frame 121 and a movable tube 122 fixedly connected to the lower movable frame 121. An upper movable frame 123 is fixedly connected to the other end of the movable tube 122. The lower movable frame 121 is limited to move on the intermediate fixed tube 114, while the movable tube 122 passes through the upper fixed frame 115 for installation, so that the entire movable support assembly 12 can move up and down on the fixed support assembly 11. At the same time, the second locking lever 116 is used to limit and fix the up and down movement of the movable support assembly 12. Meanwhile, the lower movable frame 121 is rotatably connected to the rotating connecting rod 15. Furthermore, the upper movable frame 123 is rotatably connected to the fixed cylinder upper mounting base 22. The up and down movement of the movable support assembly 12 can drive the fixed cylinder unit 20 to move up and down synchronously, thereby adjusting the height position of the mounting gimbal 50. Furthermore, since the two ends of the rotating connecting rod 15 rotate with the lower moving frame 121 and the central locking sleeve 13 respectively, the support unit 10 can be opened by adjusting the height position of the central locking sleeve 13 on the fixed cylinder 21 to form a certain angle. At this time, the multiple sets of support units 10 facilitate the overall installation and placement of the device. Example 3

[0031] Reference Figures 1 to 14As shown, this is the third embodiment of the present invention. Based on embodiments 1 and 2, the entire tripod is divided into two core parts: a support unit 10 that provides support, and a fixed tube unit 20 and a movable tube unit 30 that provide lifting, shifting, and balancing functions. The fixed tube unit 20 and the movable tube unit 30 are the core functional components. The main body includes a fixed tube 21, a movable tube 31 that can slide up and down along the inner wall of the fixed tube 21, four sets of built-in telescopic air rods 232, and a shifting assembly 34 that controls the number of telescopic air rods 232 that can be connected. The fixed tube unit 20 is connected to three sets of foldable support units 10. The upper end of the support unit 10 is rotatably connected to the mounting base 22 on the fixed tube through a hinge. The opening angle of a single leg can be adjusted and locked by the second locking lever 116, so that the entire tripod remains horizontal and stable and can adapt to different shooting environments.

[0032] The upper end of the moving tube 31 is fixedly mounted with the mounting unit 40 via the fixing component 33 on the moving tube. The top of the mounting unit 40 has a standard mounting ball seat 42, which can be directly adapted to conventional photography tripods on the market. The camera or video camera is fixed on the tripod. The entire installation method is completely consistent with conventional professional tripods. Photographers do not need to learn new installation methods. They can start using it directly after receiving it without replacing their existing tripod equipment.

[0033] The adjustment knob 341 of the adjustment assembly 34 is located below the mounting unit 40. When operating it, the photographer can easily turn and adjust it without bending over or squatting down; their hand can rest on the tripod, making it particularly convenient to use. The surface of the adjustment knob 341 is also knurled for a non-slip grip, so it can be easily turned even when wearing gloves. The knob is also clearly marked with different gear positions, each corresponding to a different rated load capacity. Each position has a corresponding locking point, and there is a distinct click when the knob is turned to the corresponding position, preventing accidental activation or slippage. The current gear position is clearly visible, and adjustments are made without over-adjusting.

[0034] In this embodiment, a rubber anti-slip sleeve is also fitted on the exposed part of the fixed cylinder unit 20. When manually pushing and pulling the device up and down, it can increase the friction and prevent the hand from slipping. At the same time, a double-layer dustproof sealing ring is installed at the mating gap between the fixed cylinder unit 20 and the moving cylinder unit 30. This can effectively prevent dust, sand and rainwater from entering the cylinder during outdoor shooting, and prevent the internal air rod and sliding structure from being worn and corroded, further improving the durability and service life of the equipment.

[0035] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A camera / camcorder lifting and shifting dynamic balance tripod, characterized in that, Includes a support unit (10), a fixed cylinder unit (20) is connected inside the support unit (10), and a moving cylinder unit (30) is installed inside the fixed cylinder unit (20). An installation unit (40) is connected to the upper end of the moving cylinder unit (30), and an installation gimbal (50) is installed on the installation unit (40). The fixed cylinder unit (20) includes a fixed cylinder (21) and a fixed cylinder mounting seat (22) fixedly connected to the fixed cylinder (21). The fixed cylinder (21) is provided with a shift fork positioning assembly (23), and a limit slide (24) is provided on the outside of the shift fork positioning assembly (23). A locking button (25) is installed on the fixed cylinder (21). The moving cylinder unit (30) includes a moving cylinder (31) and a slide rail (32) disposed on the outside of the moving cylinder (31). A moving cylinder fixing assembly (33) is connected to the moving cylinder (31), and a gear adjusting assembly (34) is installed at the upper end of the moving cylinder (31). The shift fork positioning assembly (23) includes a gas rod mounting plate (231) and a telescopic gas rod (232) mounted on the gas rod mounting plate (231). A gas rod upper positioning seat (233) is mounted on one end of the telescopic gas rod (232), and a shift fork positioning disc (234) is mounted on the upper side of the gas rod upper positioning seat (233). The shift fork positioning disc (234) includes an upper pressure cover (2341) and a shift shaft structure (2342) disposed inside the upper pressure cover (2341). A shift body (2344) is installed on the outside of the shift shaft structure (2342), and a shift positioning disc (2343) is installed on the outside of the shift body (2344). A sliding shift fork (2345) is installed inside the shift positioning disc (2343). The gear shifting assembly (34) includes a gear shifting knob (341) and a fixed insert shaft (342) fixedly connected to one end of the gear shifting knob (341). A second positioning hole (343) is provided on the outer side of the fixed insert shaft (342). A knob locking post (344) is provided on the outer side of the second positioning hole (343), and a third spring (345) is provided on the knob locking post (344).

2. The camera / camcorder lifting and shifting dynamic balance tripod according to claim 1, characterized in that, The paddle shaft structure (2342) includes a paddle shaft body (23421) and a first positioning hole (23422) opened on the outside of the paddle shaft body (23421). The upper end of the paddle shaft body (23421) is connected to an upper insertion rod (23423), and the lower end of the paddle shaft body (23421) is connected to a lower insertion rod (23424). A positioning steel ball (23425) is provided on the outside of the paddle shaft body (23421), and a first spring (23426) is provided on the outside of the positioning steel ball (23425).

3. The camera / camcorder lifting and shifting dynamic balance tripod according to claim 1, characterized in that, The sliding fork (2345) includes a fork plate (23451) and a gas rod mating hole (23452) opened in the fork plate (23451). A second spring (23453) is provided on one side of the fork plate (23451).

4. The camera / video camera lifting and shifting dynamic balance tripod according to claim 1, characterized in that, The telescopic air rod (232) is provided with an air rod slot (2321), and the telescopic air rod (232) is inserted into the air rod mating hole (23452), and the air rod mating hole (23452) and the air rod slot (2321) form a snap-fit ​​engagement.

5. The camera / camcorder lifting and shifting dynamic balance tripod according to claim 1, characterized in that, The moving cylinder fixing assembly (33) includes a moving cylinder fixing sleeve (331) and a moving cylinder top plate (332) disposed inside the moving cylinder fixing sleeve (331), and a knob mounting sleeve (333) is provided on the moving cylinder top plate (332), and a fixing pressure plate (334) is installed on the knob mounting sleeve (333).

6. The camera / camcorder lifting and shifting dynamic balance tripod according to claim 1, characterized in that, A moving cylinder positioning block (251) is provided on one side of the locking button (25), and the moving cylinder positioning block (251) is positioned and fixed by bolts.

7. The camera / video camera lifting and shifting dynamic balance tripod according to claim 1, characterized in that, The support unit (10) includes a fixed support assembly (11) and a movable support assembly (12) mounted on the fixed support assembly (11). A central locking sleeve (13) is provided on one side of the movable support assembly (12). The movable support assembly (12) and the central locking sleeve (13) are fixedly connected by a rotating connecting rod (15). A first locking lever (14) is installed on the central locking sleeve (13).

8. The camera / video camera lifting and shifting dynamic balance tripod according to claim 7, characterized in that, The fixed bracket assembly (11) includes a base (111) and a fixed foot (112) mounted on the base (111). A lower fixed frame (113) is connected to the fixed foot (112). An intermediate fixed tube (114) is mounted on the lower fixed frame (113). An upper fixed frame (115) is fixedly connected to the upper end of the intermediate fixed tube (114). A second locking lever (116) is provided on the upper fixed frame (115).

9. The camera / video camcorder lifting and shifting dynamic balance tripod according to claim 7, characterized in that, The movable support assembly (12) includes a lower movable frame (121) and a movable tube (122) fixedly connected to the lower movable frame (121), and an upper movable frame (123) is fixedly connected to the other end of the movable tube (122).

10. The camera / video camera lifting and shifting dynamic balance tripod according to claim 1, characterized in that, The mounting unit (40) includes a mounting flange (41) and a mounting ball seat (42) fixedly connected to the mounting flange (41). The mounting flange (41) is fixedly connected to the fixed pressure plate (334) by bolts.

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