Middle shaft sliding rail and application structure thereof

Abstract

The invention relates to the technical field of camera accessories, in particular to a center shaft sliding rail and an application structure thereof, the center shaft sliding rail comprises a sliding rail main body and a sliding rail host with a through hole structure on the side, the through hole is matched with the cross section of the sliding rail main body, and the sliding rail host is provided with a connector externally connected with photographic equipment. When the sliding rail is used, the sliding rail body can be directly inserted and integrated on a tripod to serve as a center shaft, a frame structure of a traditional independent sliding rail is omitted, the overall weight of the sliding rail is reduced to about 1 / 3 of the original weight, the problem that a photographer carries a heavy sliding rail when going out is solved, and the portability of mobile shooting is remarkably improved. Besides, the center shaft sliding rail structure can be detached and installed on a simple supporting frame, the center shaft sliding rail structure can be rapidly assembled into a desktop electric sliding rail to be used, and the length of the sliding rail body can be increased at will, and a second stable rail can be additionally arranged according to the requirement of shooting content. The center shaft sliding rail disclosed by the invention has a stable function which is the same as that of a professional sliding rail, so that one machine has multiple functions.

Description

Technical Field

[0001] The present invention relates to the technical field of camera accessories, and in particular to a central axis slide rail and an application structure thereof. Background Art

[0002] Tripods and sliders are different types of photographic equipment. Tripods are often used for the support of sliders. Tripods are the most commonly used support equipment for photographers. When traveling and shooting videos in the wild, such as shooting macro dynamic pictures (shooting moving pictures such as moss, bark patterns, and clock rotation), using a stabilizer or handheld camera to shoot is inevitable. Image shake is also unavoidable. When video enthusiasts go out alone to take selfie videos, if they need to shoot moving foreground pictures, they need to use electric sliders to complete it. However, the existing electric sliders and tripods each weigh 1.5-2kg, and the total weight exceeds 3kg. The bulky structure greatly limits the possibility of carrying them together for travel. Therefore, developing a lightweight slider structure that can be integrated into a tripod to achieve an all-in-one solution for miniaturization and multi-functionality of equipment is a technical direction to break through the industry's pain points. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a central axis slide rail and its application structure, which can be integrated with a tripod or other equipment to form a new product line to solve the technical problems described in the background technology.

[0004] The present invention is achieved through the following technical solutions:

[0005] A central axis slide rail comprises an elongated slide rail body and a slide rail host. The slide rail host is provided with left and right through holes on its side, and the cross-sectional shape of the through holes is adapted to the cross-sectional shape of the slide rail body. The slide rail host can be slidably connected to the slide rail body through the through holes; wherein, the slide rail host is also provided with a connector for external photographic equipment.

[0006] Furthermore, a power source is fixedly installed inside the slide rail host, a worm is installed at the output end of the power source, and a worm wheel meshing with the worm is rotatably installed in the slide rail host;

[0007] The outer edge of the slide rail body is provided with a tooth groove structure meshing with the worm gear along the length direction.

[0008] Furthermore, a guide wheel is rotatably mounted inside the slide rail main body, a rim of the guide wheel is in rolling contact with the outer surface of the slide rail main body, and a rotation axis of the guide wheel is parallel to a rotation axis of the worm gear.

[0009] Furthermore, a pan / tilt clamp with a rotation function is installed on one end of the slide rail body.

[0010] Furthermore, the cross section of the slide rail body is in a Y-shaped profile, formed by three arc-shaped line segments connected end to end.

[0011] An application structure of a central axis slide rail comprises a tripod body, wherein the central axis slide rail as described above is inserted into the base of the tripod body, and a locking assembly for locking the tripod body is provided on the base.

[0012] Furthermore, an Akka adapter is detachably mounted on the pan / tilt bracket, and the Akka adapter can be plugged into and fitted with the base.

[0013] An application structure of a central axis slide rail includes a desktop bracket main body, the desktop bracket main body includes two supports, and the central axis slide rail as described above is installed between the two supports. A quick release plate is fixedly installed on one of the supports, and the quick release plate is plugged into the pan / tilt clamp seat.

[0014] Furthermore, a plurality of the supports are respectively provided with a number of lifting components for adjusting the balance of the desktop bracket body, and the lifting components include a screw threadedly connected to the support, a foot nail is fixedly installed on the upper end of the screw, and a knob is fixedly installed on the upper end of the screw.

[0015] Furthermore, a mounting plate is fixedly mounted on the slide rail body, a guide rod is fixedly mounted on the mounting plate, the guide rod is parallel to the slide rail body, and one end of the guide rod away from the mounting plate is fixedly connected to one of the supports;

[0016] A sliding sleeve is fixedly installed outside the slide rail main body, and the guide rod is installed in the sliding sleeve.

[0017] The beneficial effects of the present invention are:

[0018] 1. The slide rail body and the slide rail host of the present invention are installed by adopting the through-hole through-type connection. The slide rail host can be sleeved on the slide rail body and move precisely along the slide rail body. This special structure enables the slide rail host to be directly inserted into the central axis (the slide rail body) on the tripod for use, eliminating the frame structure of the traditional independent slide rail and reducing the weight of the slide rail to about 1 / 3 of the original. When going out for shooting, you only need to carry a tripod and the slide rail host to conveniently use the electric slide rail to shoot moving pictures. This not only solves the pain point of photographers carrying bulky slide rails when going out, but also greatly increases the frequency of slide rail shooting.

[0019] 2. In tripod shooting mode, the center axis slide is combined with the pan head clamp. The universal rotation feature of the pan head clamp is utilized to enable the center axis slide to break through the traditional slide fixing method, making the slide shooting easier to operate and fix, and obtaining more shooting angles. It is especially suitable for outdoor creation, travel recording and other lightweight demand scenes, providing great convenience for video creators.

[0020] 3. When the central axis of the tripod and the main body of the slide are disassembled and installed on a simple support frame, they can be quickly assembled into a desktop electric slide. According to the needs of the shooting content, the length of the main body of the slide can be arbitrarily lengthened or a second stabilizing rail can be added. In this way, the central axis slide of the present invention can play the same excellent stabilizing function as a professional slide, realizing multiple uses of one machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the central axis slide rail of the present invention.

[0022] Figure 2 Schematic diagram of the connection between the worm gear and the tooth groove structure of the central axis slide rail of the present invention.

[0023] Figure 3 This is a structural diagram of Mode 1 of the first application structure of the central axis slide rail of the present invention.

[0024] Figure 4 This is a structural diagram of Mode 2 of the first application structure of the central axis slide rail of the present invention.

[0025] Figure 5 This is a structural diagram of Mode 3 of the first application structure of the central axis slide rail of the present invention.

[0026] Figure 6 This is a structural schematic diagram of the first application structure of the central axis slide rail of the present invention, in which the pan / tilt clamp and the Arca adapter are in a disengaged state.

[0027] Figure 7 This is a structural diagram of mode 4 of the first application structure of the central axis slide rail of the present invention.

[0028] Figure 8 This is a structural diagram of Mode 5 of the first application structure of the central axis slide rail of the present invention.

[0029] Figure 9 This is a structural diagram of the second application structure of the central axis slide rail of the present invention.

[0030] Figure 10 This is a structural schematic diagram of the extended slide rail body of the second application structure of the central axis slide rail of the present invention.

[0031] Figure 11This is a structural schematic diagram of the second application structure of the central axis slide rail of the present invention, in which the pan / tilt clamp and the quick release plate are in a disengaged state.

[0032] Figure 12 This is a structural schematic diagram of another embodiment of the second application structure of the central axis slide rail of the present invention.

[0033] Figure 13 This is a structural schematic diagram of another embodiment of the second application structure of the central axis slide rail of the present invention.

[0034] In the figure: 1-slide rail body, 2-slide rail main unit, 3-through hole, 4-connector, 5-power source, 6-worm, 7-worm gear, 8-tooth structure, 9-guide wheel, 10-pan head clamp, 11-sphere, 12-tripod body, 13-base, 14-locking assembly, 15-support, 16-quick release plate, 17-screw, 18-foot nail, 19-knob, 20-mounting plate, 21-guide rod, 22-sleeve, 23-desktop bracket body, 24-Aka adapter. DETAILED DESCRIPTION

[0035] Typical embodiments that embody the features and advantages of the present invention are described in detail in the following description. It should be understood that the present invention is capable of various variations in different embodiments without departing from the scope of the present invention, and that the descriptions and illustrations are intended to be illustrative rather than limiting.

[0036] In the description of this application, the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this application.

[0037] See also Figure 1 The present invention provides a technical solution: a central axis slide rail, including an elongated slide rail body 1. The cross-sectional shape of the slide rail body 1 can adopt various geometric shapes such as circle, square, rectangle, etc., among which a Y-shaped profile structure composed of three arc-shaped line segments connected end to end is preferred. The Y-shaped profile composed of three arc-shaped line segments can form multi-point contact, which can better disperse the load, reduce local wear, and enhance stability during sliding. This design is particularly suitable for applications that require precise guidance or frequent sliding.

[0038] See also Figure 1One end of the slide rail body 1 is equipped with a pan / tilt clamp 10 with a rotation function. The pan / tilt clamp 10 can adopt the spherical pan / tilt in the prior art or other pan / tilt clamps with a panoramic function. The pan / tilt clamp 10 described in this application document is preferably an inverted pan / tilt in the prior art, and one end of the slide rail body 1 is threadedly fixedly connected to the sphere 11 of the inverted pan / tilt. This design of integrating a rotatable inverted pan / tilt clamp at one end of the slide rail body 1 achieves stable fixation through a rigid threaded connection. At the same time, by utilizing the rotation function of the pan / tilt clamp 10, the slide rail body 1 can quickly adjust the pitch, roll and horizontal rotation angles, so that the shooting equipment (such as cameras, lenses) can be quickly aligned with the target object. It is suitable for dynamic shooting or complex scenes, and the integrated design eliminates the need for additional adapters, thereby improving work efficiency. This structure combines the smooth movement of a linear slide rail and the multi-angle adjustment advantages of a pan / tilt, and can be widely used in scenes such as film and television shooting and industrial inspection that require high-precision positioning and flexible operation.

[0039] See also Figure 1 , and also includes a slide rail host 2, which has left and right through holes 3 on its side, the cross-sectional shape of the through holes 3 is adapted to the cross-sectional shape of the slide rail main body 1, and the slide rail host 2 can be slidably connected to the slide rail main body 1 through the through holes 3, so as to realize the rapid installation and smooth movement of the slide rail host 2; wherein, the slide rail host 2 is also provided with a connector 4 for external photographic equipment, and the connector 4 is used as an interface with the shooting equipment.

[0040] See also Figure 2 A power source 5 is fixedly mounted inside the slide main unit 2. The power source 5 utilizes a conventional stepping motor. A worm 6 is mounted on the output end of the power source 5. A worm wheel 7 is rotatably mounted in the slide main unit 2, meshing with the worm 6. A toothed groove structure 8 is provided along the length of the outer edge of one of the branches of the slide main unit 1, meshing with the worm wheel 7. When the worm 6 rotates under the drive of the power source 5, it drives the worm wheel 7 to rotate synchronously. Through the meshing of the worm wheel 7 and the toothed groove structure 8, the slide main unit 2 can be driven to linearly translate and slide along the slide main unit 1 for shooting.

[0041] Compared with the drive structure in the prior art, the worm gear 6 transmission of the present application has a self-locking capability when stopped (the lead angle is smaller than the friction angle), and can prevent the slide rail host 2 from shifting without an additional braking device, thereby avoiding accidental sliding and damaging the composition during shooting.

[0042] Secondly, the worm gear 7 is arranged axially parallel to the slide rail body 1, and the power source 5 is installed horizontally, which saves more vertical space than the vertical transmission of belts / gears and meets the demand for thinner and lighter photographic equipment. The through hole 3 is connected to the slide rail body 1 to provide both support and guidance.

[0043] In addition, the tooth-slot engagement provides uniform thrust, which can withstand greater acceleration without losing steps compared to friction drives (such as rollers). The spiral propulsion characteristics of the worm 6 make starting and stopping smoother and reduce equipment vibration.

[0044] See also Figure 2 A guide wheel 9 is also rotatably installed inside the slide rail main body 2. The rim of the guide wheel 9 is in rolling contact with the outer surface of the arc-shaped line segment of the slide rail main body 1, and the rotation axis of the guide wheel 9 is parallel to the rotation axis of the worm gear 7. The guide wheel 9 is used to assist the movement of the slide rail main body 2, so that the movement of the slide rail main body 2 along the slide rail main body 1 is smoother and more stable, and the picture quality captured by the shooting equipment is guaranteed.

[0045] An application structure of a central axis slide rail includes a tripod body 12, wherein the base 13 of the tripod body 12 is inserted with the central axis slide rail as described above. Figure 3 As shown, this position is vertical shooting mode. The bottom of the central axis slide rail is inserted into the base 13, and the top is the pan / tilt clamp 10. This allows vertical framing. The pan / tilt clamp 10 supports multiple angle adjustments, facilitating precise composition and suitable for high-angle shooting. The base 13 is provided with a locking assembly 14 for locking the tripod body 12. The locking assembly 14 can adopt a conventional screw-type locking structure. By screwing, the locking block abuts against the slide rail to achieve locking.

[0046] In addition, the tripod body 12 cooperates with the slide rail body 1 having a Y-shaped cross-section, so that the diameter of the tripod can be minimized and the structure is more lightweight.

[0047] See also Figures 4 to 6 , which is different from the above usage is that the pan / tilt clamp 10 is detachably connected to an A-card adapter 24, which can be plugged into the base 13. Figure 4 and Figure 5 As mentioned above, this state is also a vertical shooting mode, which is suitable for low-position inverted shooting (can shoot insect perspective or water reflection close to the ground) and high-position shooting, which is the same as Figure 3 The difference is that, through the universal function of the pan / tilt clamp 10, the direction of the central axis slide rail can be adjusted, thereby obtaining more shooting angles.

[0048] In addition to the three vertical shooting modes mentioned above, this application also provides two horizontal shooting modes. By changing the insertion method of the central axis slide rail or by the universal adjustment of the pan / tilt clamp 10, the slide rail body 1 can be installed horizontally to obtain different shooting angles, such as Figure 7 and Figure 8As shown, it is suitable for panoramic shooting or dynamic object tracking.

[0049] This application combines the central axis slide rail with the tripod body, allowing it to function as the tripod's central axis, significantly simplifying the device structure and reducing both size and weight. Compared to traditional solutions that require carrying a separate slide rail and tripod when shooting macro dynamic videos (such as moss, bark textures, clock movement, etc.), this design significantly reduces the carrying burden.

[0050] Furthermore, the combination of the central axis slide and the pan / tilt clamp 10, utilizing its universal rotational properties, breaks through the traditional slide rail fixing method, making the slide rail and tripod integrated into a more convenient operation and allowing for a wider range of shooting angles. This design is particularly suitable for lightweight scenarios such as outdoor creation and travel recording, providing video creators with a significant portability advantage.

[0051] See also Figures 9 to 11 , an application structure of a central axis slide rail, including a desktop bracket body 23, the desktop bracket body 23 includes two supports 15, and the central axis slide rail as described above is installed between the two supports 15. A quick release plate 16 is fixedly installed on one of the supports 15, and the quick release plate 16 is plugged into the pan / tilt clamp 10. The other end of the slide rail body 1 can be fixed to the other support 15 by bolts. In addition, the slide rail body 1 of different lengths can be selected as needed, such as Figure 10 As shown, this state is the state where the slide rail body 1 is lengthened.

[0052] The present application integrates the central axis slide rail into the desktop bracket body 23. On the one hand, the connection between the pan-tilt clamp 10 and the quick release plate 16 can realize the quick installation of the central axis slide rail and the support 15. On the other hand, the rotation function of the pan-tilt clamp 10 can be used to quickly adjust the circumferential rotation angle of the camera (the slide rail host 2) along the central axis, so that the shooting equipment (such as camera, lens) can be quickly aimed at the target object, which greatly improves work efficiency.

[0053] See also Figure 9 Each of the plurality of supports 15 is provided with a plurality of lifting assemblies for adjusting the balance of the desktop stand body 23. The lifting assemblies include screws 17 threadedly connected to the supports 15, with foot spikes 18 fixedly mounted on the upper ends of the screws 17, and a knob 19 fixedly mounted on the upper ends of the screws 17. By rotating the screws 17 with the knobs 19, the height of the foot spikes 18 can be adjusted, thereby adjusting the support height of the supports 15. This facilitates adjusting the installation height of the camera device according to the conditions of the installation surface or obtaining stable support, thereby obtaining ideal shooting images.

[0054] See also Figure 12, which is different from the above embodiment, a mounting plate 20 is fixedly mounted on the slide rail body 1, a guide rod 21 is fixedly mounted on the mounting plate 20, the guide rod 21 is parallel to the slide rail body 1, and the end of the guide rod 21 away from the mounting plate 20 is fixedly connected to one of the supports 15;

[0055] A sliding sleeve 22 is fixedly installed on the outside of the slide rail host 2, and the guide rod 21 is installed in the sliding sleeve 22. The cooperation between the sliding sleeve 22 and the guide rod 21 can assist the slide rail host 2 to translate stably, thereby ensuring the stability of the picture captured by the shooting device.

[0056] In addition, in order to make the structure of the desktop bracket body 23 more light and simple, the slide rail body 1 can be directly fixed between the two supports 15 by bolts, and the connection structure formed by the pan / tilt clamp 10 and the quick release plate 16 is omitted. Figure 13 shown.

[0057] Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A central axis slide rail, characterized in that: The invention comprises a long strip-shaped slide rail body (1) and a slide rail host (2), wherein the side of the slide rail host (2) is provided with left and right through holes (3), the cross-sectional shape of the through holes (3) is adapted to the cross-sectional shape of the slide rail body (1), and the slide rail host (2) can be slidably sleeved on the slide rail body (1) through the through holes (3); wherein, the slide rail host (2) is also provided with a connector (4) for external photographic equipment.

2. The central axis slide rail according to claim 1, characterized in that: A power source (5) is fixedly installed inside the slide rail main unit (2), a worm (6) is installed at the output end of the power source (5), and a worm wheel (7) meshing with the worm (6) is rotatably installed in the slide rail main unit (2); The outer edge of the slide rail body (1) is provided with a tooth groove structure (8) along the length direction, which is engaged with the worm gear (7).

3. The central axis slide rail according to claim 2, characterized in that: A guide wheel (9) is also rotatably mounted inside the slide rail main body (2), the rim of the guide wheel (9) is in rolling contact with the surface of the slide rail main body (1), and the rotation axis of the guide wheel (9) is parallel to the rotation axis of the worm gear (7).

4. The central axis slide rail according to claim 1, characterized in that: A pan / tilt clamp seat (10) with a universal rotation function is installed at one end of the slide rail body (1).

5. The central axis slide rail according to claim 1, characterized in that: The cross section of the slide rail body (1) is in a Y-shaped profile and is formed by three arc-shaped line segments connected end to end.

6. An application structure of a central axis slide rail, comprising a tripod body (12), characterized in that: The base (13) of the tripod body (12) is inserted with the central axis slide rail according to any one of claims 1 to 5, and the base (13) is provided with a locking assembly (14) for locking the tripod body (12).

7. The application structure of the central axis slide rail according to claim 6, characterized in that: An A-card adapter (24) is detachably mounted on the pan / tilt head clamp seat (10), and the A-card adapter (24) can be plugged into and matched with the base (13).

8. An application structure of a central axis slide rail, comprising a desktop support body (23), wherein the desktop support body (23) comprises two supports (15), characterized in that: A central axis slide rail as described in any one of claims 1 to 5 is installed between the two supports (15), and a quick-release plate (16) is fixedly installed on one of the supports (15), and the quick-release plate (16) is plugged into the pan / tilt head clamp (10).

9. The application structure of the central axis slide rail according to claim 8, characterized in that: A plurality of lifting assemblies for adjusting the balance of the desktop bracket body (23) are respectively provided on the plurality of supports (15), and the lifting assemblies include a screw (17) threadedly connected to the support (15), a foot nail (18) is fixedly installed on the upper end of the screw (17), and a knob (19) is fixedly installed on the upper end of the screw (17).

10. The application structure of the central axis slide rail according to claim 8, characterized in that: A mounting plate (20) is fixedly mounted on the slide rail body (1), a guide rod (21) is fixedly mounted on the mounting plate (20), the guide rod (21) is parallel to the slide rail body (1), and one end of the guide rod (21) away from the mounting plate (20) is fixedly connected to one of the supports (15); A sliding sleeve (22) is fixedly installed outside the slide rail main unit (2), and the guide rod (21) is inserted into the sliding sleeve (22).

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