Supporting rod and supporting frame

Abstract

The application discloses a support rod and a support frame. The support rod comprises at least two pipe fittings, at least one locking mechanism and an operating mechanism. The at least two pipe fittings are axially slidable and connected with each other. The locking mechanism comprises a transmission assembly, a base, a tensioning assembly and an elastic reset member. The operating mechanism comprises an operating member and an execution assembly. The execution assembly is arranged on any pipe fitting of the at least two pipe fittings. The operating member is arranged on the execution assembly, and at least part of the operating member is arranged outside the any pipe fitting. The execution assembly connects the operating member with the transmission assembly. The operating member operates the transmission assembly to rotate in a locking direction or an unlocking direction through the execution assembly. A user can lock and unlock the locking mechanism between adjacent pipe fittings only by operating the operating member, so that the operation steps of the user are simplified, the operation efficiency is improved, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of support structure technology, specifically to a support rod and a support frame. Background Technology

[0002] Pole-type support frames primarily serve a supporting function, such as the three legs of a photography tripod, a monopod, or trekking poles. They are typically composed of multiple telescopically connected tubular sections, which can be extended or shortened for ease of use and storage. Adjacent tubular sections are locked together using locking mechanisms. Adjusting the length of the extended or retractable sections requires repeatedly locking or unlocking these mechanisms, a cumbersome process. Utility Model Content

[0003] This application aims to provide a support rod and support frame to simplify the locking process and improve the user experience.

[0004] According to a first aspect of this application, this application provides a support rod, comprising:

[0005] At least two pipe fittings are axially slidingly connected to each other;

[0006] At least one locking mechanism includes a transmission assembly, a base, a tensioning assembly, and an elastic reset member. The base is fixedly installed inside one of two adjacent pipe fittings. The transmission assembly is rotatably mounted on the base. The tensioning assembly is slidably mounted on the base in a direction toward or away from the inner wall of the other pipe fitting. The transmission assembly is used to rotate in the locking direction to drive the tensioning assembly to move toward the inner wall of the other pipe fitting, generating a preset locking static friction force with the inner wall of the other pipe fitting. The transmission assembly is also used to rotate in the unlocking direction to disengage from the tensioning assembly, and the elastic reset member drives the tensioning assembly to move away from the inner wall of the other pipe fitting.

[0007] An operating mechanism includes an operating element and an execution component. The execution component is disposed on any one of the at least two pipe fittings. The operating element is disposed on the execution component, and at least a portion of the operating element is located outside any of the pipe fittings. The execution component connects the operating element to the transmission component, and the operating element operates the transmission component to rotate in a locking or unlocking direction via the execution component.

[0008] In one embodiment, the transmission assembly includes a transmission rod and a force transmission element, the force transmission element being rotatably mounted on the base, the transmission rod being connected to the force transmission element, and the transmission rod extending into the interior of another pipe; the transmission rod rotates in the locking direction to drive the force transmission element to move against the tensioning assembly toward the inner wall of the other pipe; the transmission rod rotates in the unlocking direction, and the force transmission element disengages from the tensioning assembly.

[0009] In one embodiment, the force transmission member has an initial surface and a guide ramp. The transmission rod rotates in the locking direction to switch the force transmission member to the guide ramp. The tensioning assembly moves toward the inner wall of another pipe member that is adjacent to the two adjacent pipe members. The transmission rod rotates in the unlocking direction to switch the force transmission member to the initial surface. The elastic reset member drives the tensioning assembly to move toward the inner wall of another pipe member that is away from the two adjacent pipe members.

[0010] In one embodiment, the base has an axially hollow mounting cavity, and a receiving hole communicating with the mounting cavity is provided on the side of the base. The force transmission member is rotatably mounted in the mounting cavity, and the tensioning assembly is movably mounted in the receiving hole.

[0011] In one embodiment, the tensioning assembly includes a tensioning member movably mounted in the receiving hole, and the elastic reset member is connected between the tensioning member and the provided base.

[0012] In one embodiment, the tensioning assembly further includes an elastic element and a support element, the elastic element being disposed between the support element and the tensioning element, and the support element abutting against the force transmission element.

[0013] In one embodiment, the tensioning member has at least one protrusion, and the elastic reset member is annular in shape, and the elastic reset member is sleeved on the protrusion and the base.

[0014] In one embodiment, the actuating component includes a base, a drive gear, a driven gear, and a transmission shaft. The base is mounted on the top of one of two adjacent tubes. The transmission shaft rotatably passes through the base, and the driven gear is connected to the transmission shaft. The transmission shaft is fixedly connected to the transmission assembly. The drive gear is rotatably mounted on the base and meshes with the driven gear. The operating member is connected to the drive gear. The operating member is configured to reciprocate between a locked position and a released position. In the locked position, the drive gear drives the driven gear to rotate the transmission assembly along the locking direction via the transmission shaft. In the released position, the drive gear drives the driven gear to rotate the transmission assembly along the unlocking direction via the transmission shaft.

[0015] In one embodiment, the operating element includes a handle, at least a portion of which extends outside the seat.

[0016] According to a second aspect of this application, this application provides a support frame, comprising:

[0017] At least one of the aforementioned support rods;

[0018] An attachment, which connects to the top of at least two of the tops of the tubes, is used to support an item or for a user to hold.

[0019] According to the support rod and support frame of the above embodiment, the operating member operates the transmission component to rotate in the locking direction via the execution component, thereby driving the tensioning component to move towards the inner wall of another pipe fitting that is adjacent to the two adjacent pipe fittings, thus generating a preset locking static friction force with the inner wall of the other pipe fitting, locking the pipe fitting. The operating member operates the transmission component to rotate in the unlocking direction via the execution component, thereby driving the tensioning component to move away from the inner wall of another pipe fitting that is opposite to the two adjacent pipe fittings via the elastic reset component, thus releasing the locking of the other pipe fitting. In this way, the user can lock and unlock the locking mechanism between adjacent pipe fittings simply by operating the operating member, simplifying the user's operation steps, improving operational efficiency, and enhancing the user experience. Attached Figure Description

[0020] Figure 1 A perspective view of the support frame provided for this application;

[0021] Figure 2 A perspective view of the support rod provided for this application;

[0022] Figure 3 An assembly diagram of the support rod provided for this application;

[0023] Figure 4 A schematic diagram of the internal structure of the support rod provided in this application;

[0024] Figure 5 Exploded view of the locking mechanism of the support rod provided in this application;

[0025] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle;

[0026] Figure 7 A schematic diagram of the second tube and locking mechanism in the support rod provided in this application;

[0027] Figure 8 for Figure 7 Cross-sectional view along the BB direction;

[0028] Figure 9A schematic diagram of the tube protruding from the support rod provided in this application;

[0029] Figure 10 for Figure 9 Cross-sectional view along the CC direction;

[0030] Figure 11 for Figure 10 A magnified view of a portion of point D in the middle;

[0031] Figure 12 for Figure 11 A magnified view of a portion of point E in the middle;

[0032] Figure 13 A schematic diagram showing the locking mechanism in the support rod provided in this application.

[0033] Figure 14 A partial cross-sectional view of the locking mechanism in the support rod provided in this application;

[0034] Figure 15 Schematic diagram of the operating mechanism in the support rod provided in this application Figure 1 ;

[0035] Figure 16 for Figure 15 A magnified view of a portion of point F in the middle;

[0036] Figure 17 for Figure 15 Cross-sectional view along the GG direction;

[0037] Figure 18 for Figure 17 A magnified view of a portion of point H in the middle;

[0038] Figure 19 Schematic diagram of the operating mechanism in the support rod provided in this application Figure 2 ;

[0039] Figure 20 for Figure 19 A magnified view of a portion of point K.

[0040] Figure label:

[0041] Support frame 1000, support rod 100, accessories 200, legs 300;

[0042] Fitting 10, first fitting 11, second fitting 12, second locking protrusion 121, third fitting 13;

[0043] Locking mechanism 20, transmission assembly 21, transmission rod 211, force transmission component 212, initial surface 2121, guide slope 2122, base 22, first slot 220, second slot 221, mounting cavity 222, receiving hole 223, tensioning assembly 23, tensioning component 231, protrusion 2311, elastic component 232, support component 233, elastic reset component 24, limiting component 25, transmission rod sleeve 26;

[0044] Operating mechanism 30, operating element 31, actuating component 32, base 321, driving gear 322, driven gear 323, transmission shaft 324. Detailed Implementation

[0045] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0046] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0047] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0048] In related technologies, in support rod structures composed of multiple telescopic pipe fittings, locking components are set between two adjacent pipe fittings. When adjusting the length of the support rod, users need to lock or unlock each locking component, which is a cumbersome operation.

[0049] To address the aforementioned issues, this application provides a support rod and a support frame, allowing users to unlock each locking mechanism simply by operating the operating component, thereby simplifying user operation and improving user experience.

[0050] Example 1

[0051] See Figure 1 As shown, the support frame 1000 provided in this application includes at least one support rod 100 and an accessory 200. Figure 1 The support frame 1000 shown is a photographic tripod, and the accessory 200 is used to support an object (camera or video camera). It has three support rods 100, with the accessory 200 mounted on the tops of the three support rods 100. The tops of the three support rods 100 are hinged to the accessory 200, allowing them to rotate relative to the accessory 200. A damping structure can be used to lock them in place after rotation to any position. This arrangement allows the three support rods 100 to converge relative to the accessory 200 and be positioned in a converged position for easy storage. Alternatively, the three support rods 100 can rotate relative to the accessory 200 around their respective hinge points and be positioned in a support position, thus supporting the accessory 200. In the support position, each support rod 100 has the same angle relative to the vertical direction for stable support.

[0052] In this embodiment, a foot 300 is provided at the end of the support rod 100 away from the accessory 200. By providing a foot 300 on each support rod 100, the support frame 1000 can be stably supported.

[0053] In other embodiments, the support frame 1000 provided in this embodiment is applied to one of the following: trekking poles, walking sticks, and photography monopods. Only one support rod 100 is required, and the support rod 100 does not need to rotate relative to the accessory 200. For photography monopods, a tripod is provided at the lower end of the support rod 100 for support. For trekking poles and walking sticks, the accessory 200 serves as a handle for the user to grip.

[0054] Example 2

[0055] This embodiment provides a support rod 100, see [link]. Figure 2 and Figure 3 As shown, the support rod 100 provided in this embodiment includes at least two tubes 10, at least one locking mechanism 20, and an operating mechanism 30.

[0056] At least two pipe fittings 10 are connected to each other, and the two adjacent pipe fittings 10 can only move axially relative to each other. The locking mechanism 20 is located inside the two adjacent pipe fittings 10. The locking mechanism 20 can generate a preset locking static friction force between the locking mechanism and the inner wall of one of the two adjacent pipe fittings 10 to lock it after the displacement of the two adjacent pipe fittings 10 after relative axial movement. The operating mechanism 30 can also release the preset locking static friction force generated by the locking mechanism 20 on one of the pipe fittings 10 to unlock it.

[0057] like Figures 1-3 As shown, this embodiment includes three pipe fittings 10, which are designated as the first pipe fitting 11, the second pipe fitting 12, and the third pipe fitting 13 for distinction. The inner diameters of the first pipe fitting 11, the second pipe fitting 12, and the third pipe fitting 13 decrease sequentially to facilitate their sequential connection. Locking mechanisms 20 are provided between the first pipe fitting 11 and the second pipe fitting 12, and between the second pipe fitting 12 and the third pipe fitting 13, and all locking mechanisms 20 have identical structures.

[0058] First pipe fitting 11 and second pipe fitting 12, as well as second pipe fitting 12 and third pipe fitting 13, each form two adjacent pipe fittings 10. Specifically, the second pipe fitting 12 in first pipe fitting 11 and second pipe fitting 12 is one of the two adjacent pipe fittings 10, and the first pipe fitting 12 in first pipe fitting 11 and second pipe fitting 12 is the other pipe fitting in two adjacent pipe fittings 10. Similarly, the third pipe fitting 13 in second pipe fitting 12 and third pipe fitting 13 is one of the two adjacent pipe fittings 10, and the second pipe fitting 12 in second pipe fitting 12 and third pipe fitting 13 is the other pipe fitting in two adjacent pipe fittings 10. Both sets of structures are identical, differing only in their radial dimensions. The following embodiment uses first pipe fitting 11 and second pipe fitting 12 as an example to illustrate the two adjacent pipe fittings.

[0059] See Figures 4-14 As shown, the locking mechanism 20 is disposed inside the first pipe fitting 11 and the second pipe fitting 12. Of course, locking mechanisms 20 are also disposed inside the second pipe fitting 12 and the third pipe fitting 13. See also... Figure 5 and Figure 6 As shown, the locking mechanism 20 includes a transmission assembly 21, a base 22, a tensioning assembly 23, and an elastic reset member 24. The base 22 is fixedly installed inside the second pipe member 12 of the two adjacent pipe members 10. The transmission assembly 21 is rotatably mounted on the base 22. The tensioning assembly 23 is slidably mounted on the base 22 in a direction toward or away from the inner wall of the first pipe member 11 of the two adjacent pipe members 10. The elastic reset member 24 elastically connects the tensioning assembly 23 to the base 22.

[0060] In a specific embodiment, when the first pipe 11 is moved to a suitable position relative to the second pipe 12 along the axial direction, the transmission assembly 21 is used to rotate in the locking direction under the action of external force to drive the tensioning assembly 23 to move toward the inner wall of the first pipe 11. When the tensioning assembly 23 abuts against the inner wall of the first pipe 11, the tensioning assembly 23 and the inner wall of the first pipe 11 generate a preset locking static friction force, thereby locking the first pipe 11. The suitable position to which the first pipe 11 is moved is the relative length of the adjusting support rod 100. Then, the operating mechanism 30 applies an external force to the transmission assembly 21 to make it rotate in the locking direction, so that the tensioning assembly 23 approaches the inner wall of the first pipe 11 and generates a preset locking static friction force. When unlocking is required, the operating mechanism 30 applies an external force to the transmission assembly 21, causing it to rotate in the unlocking direction to disengage from the tensioning assembly 23. The tensioning assembly 23, driven by the elastic reset member 24, moves away from the inner wall of the first tube 11, releasing the preset locking static friction force to unlock. At this time, the first tube 11 can be moved again relative to the second tube 12 in the axial direction to adjust the length of the support rod 100.

[0061] like Figure 6 As shown, a first slot 220 and a second slot 221 are provided on the base 22. The inner wall of the first pipe fitting 11 is provided with a first locking protrusion (not shown in the figure), and the inner wall of the second pipe fitting 12 is provided with a second locking protrusion 121. The first locking protrusion of the first pipe fitting 11 is engaged in the first slot 220 of the base 22, and the second locking protrusion 121 of the second pipe fitting 12 is engaged in the second slot 221 of the base 22. In this way, it can be ensured that the first pipe fitting 11 and the second pipe fitting 12 remain stationary in the circumferential direction relative to the base 22, and only the movement of the first pipe fitting 11 and the second pipe fitting 12 in the axial direction is maintained. At the same time, the first locking protrusion and the first slot 220, as well as the second locking protrusion 121 and the second slot 221, are all arranged along the axial direction of the pipe fitting 10, which can also limit the movement of the second pipe fitting 12 in the axial direction.

[0062] See Figure 3 and Figure 4 As shown, the operating mechanism 30 includes an operating component 31 and an execution component 32. The execution component 32 is disposed on either of the two pipe fittings 10, specifically on the first pipe fitting 11 or the second pipe fitting 12. In this embodiment, the first pipe fitting 11 is located at the top of the support rod 100 relative to the second pipe fitting 12. Preferably, the execution component 32 is disposed at the top of the first pipe fitting 11 for user convenience. The operating component 31 is disposed on the execution component 32, and at least part of the operating component 32 is located outside the first pipe fitting 11, allowing the user to operate the operating component 32. In this embodiment, the execution component 32 connects the operating component 31 to the transmission component 21. The operating component 31 operates the transmission component 21 to rotate in the locking or unlocking direction through the execution component 32, thereby realizing the locking or unlocking function of the first pipe fitting 11.

[0063] See Figure 6 , Figure 8 and Figure 14 As shown, the transmission assembly 21 includes a transmission rod 211 and a force transmission element 212 (such as...). Figure 8 and Figure 14 As shown, the force transmission component 212 is rotatably mounted on the base 22. The transmission rod 211 is connected to the force transmission component 212 and extends into the interior of the first pipe 11 to connect with the actuating component 32. The transmission rod 211 rotates in the locking direction, causing the force transmission component 212 to abut against the tensioning component 23 and move towards the inner wall of the first pipe 11. After the tensioning component 23 abuts against the inner wall of the first pipe 11 and generates a preset locking static friction force, the first pipe 11 can be locked. When the transmission rod 211 rotates in the unlocking direction, the force transmission component 212 disengages from the tensioning component 23, and the tensioning component 23 can be reset under the action of the elastic reset component 24, thus releasing the tensioning component 23 from locking the first pipe 11.

[0064] See Figure 8 As shown, the force transmission component 212 has an initial surface 2121 and a guide slope 2122. The transmission rod 211 rotates in the locking direction to drive the force transmission component 212 to switch to the guide slope 2122. Under the action of the guide slope 2122, the guide slope 2122 abuts against the tensioning assembly 23 and moves toward the inner wall of the first pipe 11 of the two adjacent pipes 10. The transmission rod 211 rotates in the unlocking direction to drive the force transmission component 212 to switch to the initial surface 2121. The elastic reset component 24 drives the tensioning assembly 23 to move toward the inner wall of the first pipe 11 away from the two adjacent pipes 10.

[0065] In one embodiment, the force transmission member 212 is hollow inside, and the transmission rod 211 passes through the hollow structure of the force transmission member 212. The shape of the hollow structure is basically the same as the outer surface shape of the transmission rod 211, and the shape is non-circular, so that the transmission rod 211 can drive the force transmission member 212 to rotate synchronously when it rotates.

[0066] In this embodiment, the initial surface 2121 is a plane on the outer periphery of the force transmission member 212, and the guide slope 2122 is an arc surface on the outer periphery of the force transmission member 212, which has a pushing effect on the tensioning component 23. When in contact with the tensioning component 23, it forces the tensioning component 23 to move toward the inner wall of the first pipe 11.

[0067] In another embodiment, the transmission rod 211 and the force transmission member 212 can be an integral structure. The force transmission member 212 is equivalent to a protrusion in the radial direction of the transmission rod 211, and an initial surface 2121 and a guide slope 2122 are provided on the outer peripheral surface of the protrusion.

[0068] See Figure 6 and Figure 8 As shown, the base 22 has an axially hollow mounting cavity 222. The side of the base 22 has a receiving hole 223 that communicates with the mounting cavity 222. The force transmission member 212 is rotatably installed in the mounting cavity 222. The tensioning assembly 23 is movably installed in the receiving hole 223. Specifically, the tensioning assembly 23 can move in the receiving hole 223 along the radial direction of the base 22 toward or away from the inner wall of the first pipe 11.

[0069] In this embodiment, the tensioning assembly 23 includes a tensioning member 231, which is movably installed in the receiving hole 223. An elastic reset member 24 is connected between the tensioning member 231 and the base 22. When the force transmission member 212 rotates along the locking direction of the transmission rod 211 and switches to the guide slope 2122 abutting against the tensioning member 231, the tensioning member 231 moves towards the inner wall of the first pipe 11 and generates a preset locking static friction force with the inner wall of the first pipe 11, thus locking the first pipe 11. During this process, the elastic reset member 24 stores elastic potential energy. When the force transmission member 212 rotates along the unlocking direction of the transmission rod 211 and switches to the initial surface 2121 abutting against the tensioning member 231, the elastic reset member 24 releases its elastic potential energy and acts on the tensioning member 231, driving the tensioning member 231 to move away from the inner wall of the first pipe 11, thereby releasing the locking of the first pipe 11.

[0070] See Figures 5-14 As shown, the tensioning assembly 23 also includes an elastic element 232 and a support element 233. The elastic element 232 is disposed between the support element 233 and the tensioning element 231, and the support element 233 abuts against the force transmission element 212. The tensioning element 231, the elastic element 232, and the support element 233 constitute the tensioning assembly 23. When the guide slope of the force transmission element 212 abuts against the support element 233, the tensioning element 231 contacts the inner wall of the first pipe 11. Under the action of the elastic element 232, the tensioning element 231 is elastically supported, thereby improving the stability of the preset locking static friction force.

[0071] The elastic element 232 is preferably a disc spring, and the support element 233 adopts a T-shaped structure. The protruding part of the support element 233 passes through the disc spring and is connected to the tensioner 231 to prevent the elastic element 232 from shifting.

[0072] In this embodiment, the tensioning member 231 has at least one protrusion 2311, and the elastic reset member 24 is annular in shape, for example, an annular rubber ring. The annular elastic reset member 24 is sleeved on the protrusion 2311 and the base 22. In a preferred embodiment, two protrusions 2311 are provided on the tensioning member 231, and correspondingly, two elastic reset members 24 are respectively sleeved on the protrusion 2311 and the base 22 to improve the stability of the reset of the tensioning member 231.

[0073] See Figures 15-20 As shown, the actuating component 32 includes a base 321, a driving gear 322, a driven gear 323, and a transmission shaft 324. The base 321 is mounted on the top of the first tube 11 of two adjacent tubes 10. The transmission shaft 324 is rotatably inserted through the base 321. The driven gear 323 is connected to the transmission shaft 324. The transmission shaft 324 is fixedly connected to the transmission rod 211 of the transmission component 21. The driving gear 322 is rotatably mounted on the base 321 and meshes with the driven gear 323. The operating member 31 is connected to the driving gear 322.

[0074] See Figure 5 , Figure 6 , Figures 11-13 As shown, the top of the force transmission component 212 is limited to the transmission rod 211 by the transmission rod sleeve 26, and the transmission rod sleeve 26 is limited by the limiting component 25. The top plane of the transmission rod sleeve 26 is flush with the top of the transmission rod 211. In this embodiment, the transmission rod 211 can drive the transmission rod sleeve 26 to rotate synchronously while rotating. It should be understood that the transmission rod 211 and the force transmission component 212 are bonded and fixedly connected. In a specific embodiment, the inside of the force transmission component 212 is hollow, and the transmission rod 211 passes through the hollow structure inside the force transmission component 212. Furthermore, the cross-sectional shape of the hollow structure of the force transmission component 212 is adapted to the cross-sectional shape of the transmission rod 211. For example, both are rectangular. Of course, they can also be elliptical, racetrack-shaped, irregular, or other non-circular shapes, so that the transmission rod 211 can only rotate circumferentially. The transmission rod 211 is hollow inside, and the transmission shaft 324 is slidably inserted into the internal cavity of the transmission rod 211. That is, the transmission shaft 324 slides along the axial direction of the transmission rod 211. Since the transmission shaft 324 is connected to the driven gear 323, it can transmit the rotational motion of the driven gear 323 to the transmission rod 211, thereby driving the force transmission element 212 to rotate in the locking or unlocking direction.

[0075] The operating element 31 is configured to reciprocate between a locked position and a released position. In the locked position, the driving gear 322 drives the driven gear 323 to rotate the transmission rod 211 of the transmission assembly 21 in the locking direction via the transmission shaft 324, thereby causing the guide slope of the force transmission element 212 to abut against the tensioning assembly 23 and move toward the inner wall of the first pipe 11. In the released position, the driving gear 322 drives the driven gear 323 to rotate the transmission rod 211 of the transmission assembly 21 in the unlocking direction via the transmission shaft 324, so that the initial surface of the force transmission element 212 abuts against the tensioning assembly 23. Under the action of the elastic reset element 24, the tensioning assembly 23 moves away from the inner wall of the first pipe 11 to release the locking of the first pipe 11.

[0076] In this embodiment, the operating element 31 includes a handle, and at least part of the handle 31 extends to the outside of the seat 321 to facilitate user operation of the handle.

[0077] In summary, in the support rod and support frame provided by this utility model, the operating component operates the transmission component to rotate in the locking direction via the execution component, thereby driving the tensioning component to move towards the inner wall of another pipe fitting that is adjacent to the other two pipe fittings. This generates a preset locking static friction force with the inner wall of the other pipe fitting, thus locking the pipe fitting. The operating component also operates the transmission component to rotate in the unlocking direction via the execution component, thereby driving the tensioning component to move away from the inner wall of another pipe fitting that is away from the other two pipe fittings via the elastic reset component, thus releasing the locking of the other pipe fitting. In this way, the user can lock and unlock the locking mechanism between adjacent pipe fittings simply by operating the operating component, simplifying the user's operation steps, improving operational efficiency, and enhancing the user experience.

[0078] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A support rod, characterized in that, include: At least two pipe fittings are axially slidably connected to each other. At least one locking mechanism includes a transmission assembly, a base, a tensioning assembly, and an elastic reset member. The base is fixedly installed inside one of two adjacent pipe fittings. The transmission assembly is rotatably mounted on the base. The tensioning assembly is slidably mounted on the base in a direction toward or away from the inner wall of the other pipe fitting. The transmission assembly is used to rotate in the locking direction to drive the tensioning assembly to move toward the inner wall of the other pipe fitting, generating a preset locking static friction force with the inner wall of the other pipe fitting. The transmission assembly is also used to rotate in the unlocking direction to disengage from the tensioning assembly, and the elastic reset member drives the tensioning assembly to move away from the inner wall of the other pipe fitting. An operating mechanism includes an operating element and an execution component. The execution component is disposed on any one of the at least two pipe fittings. The operating element is disposed on the execution component, and at least a portion of the operating element is located outside any of the pipe fittings. The execution component connects the operating element to the transmission component, and the operating element operates the transmission component to rotate in a locking or unlocking direction via the execution component.

2. The support rod as described in claim 1, characterized in that, The transmission assembly includes a transmission rod and a force transmission element. The force transmission element is rotatably mounted on the base. The transmission rod is connected to the force transmission element and extends into the interior of another pipe. The transmission rod rotates in the locking direction to drive the force transmission element to move against the tensioning assembly toward the inner wall of the other pipe. The transmission rod rotates in the unlocking direction, and the force transmission element disengages from the tensioning assembly.

3. The support rod as described in claim 2, characterized in that, The force transmission component has an initial surface and a guide slope. The transmission rod rotates in the locking direction to drive the force transmission component to switch to the guide slope. The tensioning assembly moves toward the inner wall of another pipe with two adjacent pipes. The transmission rod rotates in the unlocking direction to drive the force transmission component to switch to the initial surface. The elastic reset component drives the tensioning assembly to move toward the inner wall of another pipe with two adjacent pipes away from the inner wall of the other pipe.

4. The support rod as described in claim 3, characterized in that, The base has an axially hollow mounting cavity, and a receiving hole communicating with the mounting cavity is provided on the side of the base. The force transmission component is rotatably installed in the mounting cavity, and the tensioning assembly is movably installed in the receiving hole.

5. The support rod as described in claim 4, characterized in that, The tensioning assembly includes a tensioning member, which is movably installed in the receiving hole, and the elastic reset member is connected between the tensioning member and the base.

6. The support rod as described in claim 5, characterized in that, The tensioning assembly further includes an elastic element and a support element. The elastic element is disposed between the support element and the tensioning element, and the support element abuts against the force transmission element.

7. The support rod as described in claim 6, characterized in that, The tensioning member has at least one protrusion, and the elastic reset member is annular in shape, and the elastic reset member is sleeved on the protrusion and the base.

8. The support rod as described in claim 1, characterized in that, The actuating component includes a base, a drive gear, a driven gear, and a transmission shaft. The base is mounted on the top of one of two adjacent pipe fittings. The transmission shaft rotatably passes through the base, and the driven gear is connected to the transmission shaft. The transmission shaft is fixedly connected to the transmission assembly. The drive gear is rotatably mounted on the base and meshes with the driven gear. The operating member is connected to the drive gear. The operating member is configured to reciprocate between a locked position and a released position. In the locked position, the drive gear drives the driven gear to rotate the transmission assembly along the locking direction via the transmission shaft. In the released position, the drive gear drives the driven gear to rotate the transmission assembly along the unlocking direction via the transmission shaft.

9. The support rod as described in claim 8, characterized in that, The operating element includes a handle, at least a portion of which extends to the outside of the seat.

10. A support frame, characterized in that, include: At least one support rod as described in any one of claims 1-9; An attachment, which connects to the top of at least two of the tops of the tubes, is used to support an item or for a user to hold.

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