A switching mechanism of a tripod

Abstract

The utility model relates to a kind of switching mechanism of tripod, including foot support main body, foot support main body upper portion is equipped with tray, tray is equipped with mounting hole, the mounting hole is equipped with conversion piece, the conversion piece is by the first connecting section, transition section, second connecting section is formed, and the diameter of the first connecting section and transition section is less than the diameter of second connecting section, the first connecting section is equipped with first thread, the second connecting section is equipped with second thread, mounting hole inner wall is equipped with third thread, the axial length of the first connecting section is A, the axial length of transition section is B, the axial length of the second connecting section is C, the axial length L of the conversion piece=A+B+C, the hole depth H of the mounting hole>A+B. By the setting of conversion piece and mounting hole of integrated double-specification interface to improve versatility, while ensuring that second connecting section has sufficient length to enter mounting hole to achieve effective thread engagement, structure is simple, improve long-term use reliability.

Description

Technical Field

[0001] This utility model relates to the field of tripod technology, and more specifically to a tripod adapter mechanism. Background Technology

[0002] In practical applications, tripods typically rely on the 1 / 4-inch or 3 / 8-inch imperial threaded connector on their top to connect to load devices such as gimbals and cameras.

[0003] However, most tripod products only come pre-installed with one type of thread interface, leading to compatibility issues when connecting to load devices with different thread specifications. To address this, a common solution is to include mounting holes on the top of the tripod and two adapter screws with 1 / 4-inch and 3 / 8-inch external threads respectively, allowing users to manually replace the screws to match the thread specifications of their load devices. Another common solution is to use an adapter ring, with one end having an internal thread that matches the tripod's thread interface and the other end adapting to the thread specifications required by the load device, achieving thread conversion through an additional intermediate connector. However, these additional accessories are easily lost, making them inconvenient for long-term use and storage; furthermore, the extra connection layers increase assembly complexity, impacting operational efficiency and user experience. Utility Model Content

[0004] The purpose of this invention is to provide a tripod adapter mechanism that improves versatility, thereby solving the above-mentioned problems.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a tripod adapter mechanism, including a tripod body, a tray on the upper part of the tripod body, a mounting hole on the tray, and an adapter in the mounting hole. The adapter is composed of a first connecting section, a transition section, and a second connecting section arranged coaxially in sequence, wherein the diameters of the first connecting section and the transition section are both smaller than the diameter of the second connecting section. The entire outer circumferential surface of the first connecting section is provided with a first thread, and the entire outer circumferential surface of the second connecting section is provided with a second thread of a different specification than the first thread. The inner wall of the mounting hole is provided with a third thread that can cooperate with the second thread. The axial length of the first connecting section is A, the axial length of the transition section is B, the axial length of the second connecting section is C, the axial length L of the adapter is L = A + B + C, and the depth H of the mounting hole is H > A + B.

[0006] As a further optimization of this utility model, the depth H of the mounting hole is greater than or equal to C, and the depth H of the mounting hole is less than or equal to B+C.

[0007] As a further optimization of this utility model, when the conversion component is installed into the mounting hole with the first connecting section facing downwards, the axial length D of the second connecting section extending into the mounting hole is ≥15mm.

[0008] As a further optimization of this utility model, the diameter of the transition section is smaller than the diameter of the first connecting section.

[0009] As a further optimization of this utility model, the first thread is 1 / 4-20UNC.

[0010] As a further optimization of this utility model, the second thread and the third thread are 3 / 8-16UNC.

[0011] As a further optimization of this utility model, both the end of the first connecting segment and the end of the second connecting segment are provided with internal hexagonal grooves along their axial direction.

[0012] Compared with the prior art, this utility model has the following advantages: By integrating a dual-specification interface adapter and mounting holes, the adapter can be installed in the mounting holes of the tripod tray in both directions, allowing free switching between two mainstream thread specifications without replacing parts, thereby improving versatility. At the same time, the mounting hole depth H is set to be greater than the sum of the axial length A of the first connecting section and the axial length B of the transition section, ensuring that when installed in reverse, the second connecting section still has sufficient length to enter the mounting hole to achieve effective thread engagement. The structure is simple, with fewer connection layers, high stability, and users do not need to carry or manage additional parts, thus improving long-term reliability. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0014] Figure 2 This is an exploded view of the present invention;

[0015] Figure 3 This is a three-dimensional schematic diagram of the conversion component of this utility model. Figure 1 ;

[0016] Figure 4 This is a three-dimensional schematic diagram of the conversion component of this utility model. Figure 2 ;

[0017] Figure 5 This is a cross-sectional view of the present invention where the conversion component is inserted into the mounting hole with the first connecting section facing downwards;

[0018] Figure 6 This is a cross-sectional view of the present invention, showing the conversion component inserted into the mounting hole with the second connecting section facing downwards. Detailed Implementation

[0019] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] like Figures 1 to 6 As shown, this utility model discloses a tripod adapter mechanism, including a tripod body 1, a tray 2 on the upper part of the tripod body 1, a mounting hole 21 on the tray 2, and an adapter 3 inside the mounting hole 21. The adapter 3 is composed of a first connecting section 31, a transition section 32, and a second connecting section 33 arranged coaxially in sequence. The diameters of the first connecting section 31 and the transition section 32 are both smaller than the diameter of the second connecting section 33. The entire outer circumferential surface of the first connecting section 31 is provided with a first thread 311, and the entire outer circumferential surface of the second connecting section 33 is provided with a second thread 331 of a different specification than the first thread 311. The inner wall of the mounting hole 21 is provided with a third thread 211 that can cooperate with the second thread 331. The axial length of the first connecting section 31 is A, the axial length of the transition section 32 is B, the axial length of the second connecting section 33 is C, the axial length L of the adapter 3 is L = A + B + C, and the depth H of the mounting hole 21 is H > A + B.

[0021] like Figure 1 As shown in the embodiment, the tripod body 1 serves as a support structure, with a circular tray 2 fixedly connected to its top. The tray 2 supports the gimbal or other load equipment. A mounting hole 21 is provided at the center of the tray 2, and a third thread 211 is machined on the inner wall of the mounting hole 21. The conversion component 3 is an integrally formed stepped shaft-shaped component, which includes three coaxial sections in sequence along the axial direction: a first connecting section 31, a transition section 32, and a second connecting section 33. The axial length of the first connecting section 31 is A, and its entire outer circumferential surface is machined with the first thread 311. The axial length of the second connecting section 33 is C, and it is located at the other end of the conversion component 3. Its entire outer circumferential surface is machined with a second thread 331, which has a different specification than the first thread 311. The transition section 32, with an axial length of B, connects the first connecting section 31 and the second connecting section 33. Its outer circumferential surface is smooth to form a diameter step while avoiding thread crossing interference.

[0022] Since the diameters of the first connecting section 31 and the transition section 32 are both smaller than the diameter of the second connecting section 33, when the user inserts the adapter 3 into the mounting hole 21 with the first connecting section 31 facing downwards, the outer diameters of the first connecting section 31 and the transition section 32 are both smaller than the root diameter of the internal thread of the mounting hole 21, and there will be no thread interference with the inner wall of the mounting hole 21. When the first connecting section 31 and the transition section 32 are fully inserted into the mounting hole 21, they occupy a total depth of A+B. Since the hole depth H of the mounting hole 21 is greater than A+B, there is still remaining space in the mounting hole 21 for the lower part of the second connecting section 33 to enter. Since the second connecting section 33 has a second thread 331 that is perfectly matched with the third thread 211 on the inner wall of the mounting hole 21, the two can achieve reliable thread engagement. After engagement, the upper un-screwed portion of the second connecting section 33 protrudes above the tray 2, and its exposed second thread 331 can be used to install load equipment adapted to this thread interface. When the user screws the adapter 3 into the mounting hole 21 with the second connecting section 33 facing down, the second connecting section 33 engages with the third thread 211 of the mounting hole 21, and the first connecting section 31 protrudes above the tray. Its exposed first thread 311 can be used to install load equipment that is compatible with the threaded interface.

[0023] By integrating the dual-specification interface adapter 3 with the mounting hole 21, the adapter 3 can be installed in the mounting hole 21 of the tripod tray 2 in both directions, allowing free switching between two mainstream thread specifications without replacing parts, thus improving versatility. At the same time, the mounting hole depth H is set to be greater than the sum of the axial length A of the first connecting section and the axial length B of the transition section, ensuring that when installed in reverse, the second connecting section 33 still has sufficient length to enter the mounting hole 21 to achieve effective thread engagement. The structure is simple, with fewer connection layers, high stability, and users do not need to carry or manage additional parts, improving long-term reliability.

[0024] The depth H of the mounting hole 21 is greater than or equal to C, and the depth H of the mounting hole 21 is less than or equal to B+C.

[0025] The depth H of the mounting hole 21 is not less than the axial length C of the second connecting section 33, thus ensuring that when the adapter 3 is screwed into the mounting hole 21 with the second connecting section 33 facing downwards, the entire second connecting section 33 can be completely inserted into the mounting hole 21. Since the entire outer circumferential surface of the second connecting section 33 is provided with a second thread 331, if the hole depth H of the mounting hole 21 is less than the axial length C of the second connecting section 33, when the adapter 3 is screwed into the mounting hole 21 with the second connecting section 33 facing downwards, part of the thread at the upper end of the second connecting section 33 will be exposed on the surface of the tray 2. This exposed thread is easily worn, deformed, or has reduced precision due to bumps, friction, corrosion, etc. during daily use. When the user subsequently needs to screw the first connecting section 31 downwards into the mounting hole 21, it relies on this originally exposed thread to mesh with the third thread 211 inside the mounting hole 21. If this thread is damaged, it may cause poor meshing, resulting in stripping, loose connection, or even disengagement, affecting the reliability and safety of use.

[0026] The mounting hole depth H is less than the sum of the transition section length B and the second connecting section length C. This prevents the first connecting section 31 from being completely screwed into the mounting hole 21 when the adapter 3 is screwed in with the second connecting section 33 facing down, resulting in insufficient exposed interface. This ensures that the adapter 3 can maintain a reliable threaded connection with the load equipment in both bidirectional use modes.

[0027] When the conversion component 3 is installed into the mounting hole 21 with the first connecting section 31 facing downward, the axial length D of the second connecting section 33 extending into the mounting hole 21 is ≥15mm, thereby ensuring that the second connecting section 33 has sufficient length to enter the mounting hole 21 and form an effective engagement with the third thread 211.

[0028] The diameter of the transition section 32 is smaller than that of the first connecting section 31, which can prevent the upper part of the transition section 32 from protruding from the upper surface of the tray 2, thereby preventing the gimbal or quick-release plate from fitting against the tray 2, or from physically interfering with the base of some low-profile load equipment.

[0029] like Figure 3 , Figure 4 As shown, in this embodiment, the entire outer circumferential surface of the first connecting section 31 is machined with a uniform coarse-pitch imperial external thread with a nominal diameter of 1 / 4 inch and 20 threads per inch as an interface for connecting with the load equipment, thereby ensuring compatibility between the tripod and mainstream light-duty load equipment. Simultaneously, the entire outer circumferential surface of the second connecting section 33 is provided with a uniform coarse-pitch imperial external thread with a nominal diameter of 3 / 8 inch and 16 threads per inch, and the inner wall of the mounting hole 21 is correspondingly provided with a matching third thread 211. This 3 / 8-inch imperial thread interface has higher tensile and torsional strength, and can effectively support heavy-duty gimbals and other professional equipment. Adopting this specification can improve the mechanical reliability and safety of the connection structure while ensuring the connection compatibility between the tripod and various heavy-duty load equipment.

[0030] Both the end of the first connecting segment 31 and the end of the second connecting segment 33 are provided with an internal hexagonal groove 34 along their axial direction, so that whether the conversion part 3 is installed with the second connecting segment 33 facing down into the mounting hole 21 or with the first connecting segment 31 facing down into the mounting hole 21, the user can tighten or loosen the conversion part 3 with an internal hexagonal wrench, which improves the convenience and reliability of use.

Claims

1. A tripod adapter mechanism, characterized in that, The system includes a tripod body (1), a tray (2) on the upper part of the tripod body (1), a mounting hole (21) on the tray (2), a conversion component (3) in the mounting hole (21), and the conversion component (3) consisting of a first connecting section (31), a transition section (32), and a second connecting section (33) arranged coaxially in sequence. The diameters of the first connecting section (31) and the transition section (32) are both smaller than the diameter of the second connecting section (33). The entire outer circumferential surface of the first connecting section (31) is provided with a first thread (311). The entire outer circumferential surface of the second connecting section (33) is provided with a second thread (331) of a different specification than the first thread (311). The inner wall of the mounting hole (21) is provided with a third thread (211) that can cooperate with the second thread (331). The axial length of the first connecting section (31) is A, the axial length of the transition section (32) is B, the axial length of the second connecting section (33) is C, the axial length of the conversion part (3) is L=A+B+C, and the hole depth H of the mounting hole (21) is H>A+B.

2. The tripod adapter mechanism according to claim 1, characterized in that, The depth H of the mounting hole (21) is greater than or equal to C, and the depth H of the mounting hole (21) is less than or equal to B+C.

3. The tripod adapter mechanism according to claim 2, characterized in that, When the conversion component (3) is installed into the mounting hole (21) with the first connecting section (31) facing downward, the axial length D of the second connecting section (33) extending into the mounting hole (21) is ≥15mm.

4. The tripod adapter mechanism according to claim 3, characterized in that, The diameter of the transition section (32) is smaller than the diameter of the first connecting section (31).

5. The tripod adapter mechanism according to claim 1, characterized in that, The first thread (311) is 1 / 4-20UNC.

6. The tripod adapter mechanism according to claim 1, characterized in that, The second thread (331) and the third thread (211) are 3 / 8-16UNC.

7. The tripod adapter mechanism according to claim 1, characterized in that, Both the end of the first connecting segment (31) and the end of the second connecting segment (33) are provided with internal hexagonal grooves (34) along their axial direction.

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