Telescopic locking structure of selfie stick

Abstract

The utility model relates to a telescopic locking structure of a selfie stick. The telescopic locking structure comprises a fixed base and a cam installed in the fixed base. A rotating shaft suitable for mounting the cam is arranged in the center of one end of the fixed base, at least two elastic arms are symmetrically arranged along the center of the rotating shaft, the at least two elastic arms are located on the same circumference, and the diameter of the circumference is matched with the inner diameter of the second rod piece; at least two convex arcs are symmetrically arranged on the side wall of the cam, and the at least two convex arcs are suitable for extruding the elastic arm when the cam rotates relative to the fixed base so that the elastic arm can abut against the inner wall of the second rod piece. The concentric rod is attractive in appearance, and the defects that a traditional concentric rod cannot be locked or is complex in structure and inconvenient to operate even if the traditional concentric rod can be locked are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of selfie sticks, in particular to a telescopic locking structure of a selfie stick. Background Art

[0002] At present, the retractable selfie sticks on the market are all composed of multiple sections. Each section of the rod is divided into two types: concentric rod and eccentric rod. The upper and lower sections of the eccentric rod are due to the eccentricity of the rod itself. When twisted against each other, an interference fit will be generated between the eccentric rods to achieve the purpose of locking the two sections of the rod, effectively preventing the rod from sliding up and down. When the rod is screwed back to its original state, it can be freely extended and slid up and down without any damping force; the concentric rod is to install one or two interference fit anti-slip plates at the upper end of each section of the rod, so that when the two rods slide on the upper line, they are damped by the anti-slip plate, so that the rods cannot slide up and down easily. The thickness of the anti-slip plate is adjusted to control the size of the damping force, so that the two sections of the rod can be pulled apart by a certain force, and after being pulled apart, they can only be retracted under a certain force, thereby achieving the purpose of the selfie stick to stretch up and down.

[0003] The defect of the above-mentioned prior art is that the eccentric rod does not look round and is not very aesthetically pleasing. The concentric rod cannot be locked, and when subjected to a certain force during use, the rod will slide up and down, resulting in a change in the telescopic length. At the same time, due to the tolerance matching between the rods, the damping anti-slip plate of the concentric rod needs to be equipped with anti-slip plates of different thicknesses between each section of the rod to achieve the use effect, resulting in poor interchangeability of the product, which leads to low production efficiency and high production costs. Utility Model Content

[0004] Based on this, it is necessary to provide a telescopic locking structure for a selfie stick to solve the problem that the concentric rods cannot be locked without affecting the appearance.

[0005] In order to achieve the above-mentioned purpose of the invention, the utility model adopts the following technical solutions.

[0006] The utility model provides a telescopic locking structure of a selfie stick, the selfie stick comprising a first rod and a second rod which are mutually nested, the first rod and the second rod being able to slide relatively along the length direction of the selfie stick, the telescopic locking structure being arranged between the first rod and the second rod, comprising a fixed base and a cam installed in the fixed base;

[0007] A connecting portion suitable for being fixedly inserted into the first rod is disposed at one end of the fixed base, and a rotating shaft suitable for installing the cam is disposed at the center of the other end, and at least two elastic arms are symmetrically disposed along the center of the rotating shaft, and the at least two elastic arms are located on the same circumference, and the diameter of the circumference is adapted to the inner diameter of the second rod;

[0008] At least one groove is arranged on the side surface of the cam, and at least one convex ridge is arranged on the inner wall of the second rod member along the length direction, and the convex ridge is suitable for being inserted into the groove, so that the second rod member is suitable for driving the cam to rotate through the convex ridge; at least two convex arcs are symmetrically arranged on the side wall of the cam, and the at least two convex arcs are suitable for squeezing the elastic arm when the cam rotates relative to the fixed base, so as to press the elastic arm against the inner wall of the second rod member.

[0009] Preferably, the cam is sleeved on the rotating shaft, and a screw is fixed on the top end of the rotating shaft.

[0010] Preferably, the cam is substantially columnar, with a circular flange radially extending from one of the bottom surfaces, and the groove is arranged at the edge of the flange.

[0011] Preferably, at least one protrusion is provided on the connecting portion, and a buckle hole suitable for buckling the protrusion is provided at a corresponding position of the first rod.

[0012] Preferably, an annular damping member is provided in the middle of the fixed base, and the damping member is suitable for forming an interference fit with the inner wall of the second rod.

[0013] The utility model is provided with a telescopic locking structure between the first rod and the second rod, and the telescopic locking structure includes a fixed base and a cam installed in the fixed base, with fewer parts, and the cam is driven to rotate by a convex edge arranged on the inner wall of the second rod, so it is convenient to use and has high reliability. The utility model is not only beautiful in appearance, but also solves the disadvantages of the traditional concentric rods that cannot be locked or even if they can be locked, the structure is complicated and the operation is inconvenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the exploded structure of the telescopic locking structure in this embodiment;

[0015] Figure 2 Schematic diagram of the overall structure of the fixed base in this embodiment;

[0016] Figure 3 Schematic diagram of the overall structure of the cam in this embodiment.

[0017] The realization of the purpose of the utility model and its functions and principles will be further explained in the specific implementation manner in conjunction with the accompanying drawings. DETAILED DESCRIPTION

[0018] The following is a further description with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1As shown, this embodiment provides a telescopic locking structure 100 of a selfie stick, which is composed of at least two rods, including a first rod 10 and a second rod 20. The first rod 10 and the second rod 20 are coaxially nested and can slide relative to each other along the length direction of the selfie stick to achieve telescopic movement of the selfie stick. The telescopic locking structure 100 is arranged between the first rod 10 and the second rod 20, and includes a fixed base 110 and a cam 120 installed in the fixed base 110.

[0020] Specifically, refer to Figure 2 As shown, one end of the fixed base 110 is provided with a connecting portion 111 for fixedly inserting into the first rod 10, and the center position of the other end is provided with a rotating shaft 112 suitable for installing the cam 120, and at least two elastic arms 113 are symmetrically arranged along the center of the rotating shaft 112, and the at least two elastic arms 113 are distributed on the same circumference, and the diameter of the circumference is adapted to the inner diameter of the second rod 20.

[0021] The side of the cam 120 is provided with at least one groove 121, and the inner wall of the second rod 20 is correspondingly provided with at least one ridge 201 along the length direction. The ridge 201 is suitable for being inserted into the groove 121, so that the second rod 20 can drive the cam 120 to rotate through the ridge 201. In this embodiment, the cam 120 is generally cylindrical, and one of the bottom surfaces (such as Figure 3 A circular flange 122 is radially extended from the upper bottom surface (shown as the upper bottom surface), and the groove 121 is arranged at the edge of the flange 122. In order to disperse the force of the groove 121, it is appropriate to set 2-4 grooves 121. Correspondingly, the inner wall of the second rod 20 is provided with 2-4 ridges 201, and each ridge 201 is respectively inserted into a groove 121.

[0022] The cooperation between the ridge 201 and the groove 121 can not only provide torque for the cam 120 , but also serve as a guide rail for the cam 120 during the extension and retraction process of the second rod 20 , so that the cam 120 will not be tilted or stuck.

[0023] At least two convex arcs 123 are symmetrically arranged on the side wall of the cam 120, and the at least two convex arcs 123 can squeeze the elastic arm 113 when the cam 120 rotates relative to the fixed base 110, so as to press the elastic arm 113 against the inner wall of the second rod 20, thereby locking the second rod 20. The convex arc 123 described in this embodiment includes but is not limited to an arc-shaped curved surface with a gradually changing diameter.

[0024] To prevent the cam 120 from falling off, in this embodiment, after the cam 120 is sleeved on the rotating shaft 112, a screw 130 is fixed to the top of the rotating shaft 112. The tail of the screw 130 limits the freedom of the cam 120 on the rotating shaft 112, so that it can only rotate but not move up and down.

[0025] Please refer again Figure 2 At least one protrusion 114 is provided on the connecting portion 111 of the fixed base 110, and correspondingly, at least one buckle hole 101 is provided at the end of the first rod 10, and the protrusion 114 is suitable for buckling into the buckle hole 101, so that the connecting portion 111 can be inserted into the first rod 10 and is not easy to be pulled out, thereby enhancing the stability of the connection between the fixed base 110 and the first rod 10, and further improving the reliability of the product.

[0026] In addition, in order to prevent the first rod 10 and the second rod 20 from sliding relative to each other easily, an annular damping member 115 is provided in the middle of the fixed base 110 in this embodiment. The damping member 115 is suitable for forming an interference fit with the inner wall of the second rod 20, so that the selfie stick can maintain the current length when no force is applied even if it is not locked, and can extend or contract when subjected to a certain force, thereby improving the operating experience of the selfie stick.

[0027] In summary, the utility model sets a telescopic locking structure between the first rod and the second rod, and the telescopic locking structure includes a fixed base and a cam installed in the fixed base, with fewer parts, and the cam is driven to rotate by the convex edge set on the inner wall of the second rod, so it is easy to use and has high reliability. The utility model not only has a beautiful appearance, but also solves the disadvantages of traditional concentric rods that cannot be locked or even if they can be locked, the structure is complicated and the operation is inconvenient.

[0028] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A telescopic locking structure of a selfie stick, the selfie stick comprising a first rod and a second rod nested with each other, the first rod and the second rod being able to slide relative to each other along the length direction of the selfie stick, the telescopic locking structure being arranged between the first rod and the second rod, comprising a fixed base and a cam installed in the fixed base; characterized in that: A connecting portion suitable for being fixedly inserted into the first rod is disposed at one end of the fixed base, and a rotating shaft suitable for installing the cam is disposed at the center of the other end, and at least two elastic arms are symmetrically disposed along the center of the rotating shaft, and the at least two elastic arms are located on the same circumference, and the diameter of the circumference is adapted to the inner diameter of the second rod; At least one groove is arranged on the side surface of the cam, and at least one convex ridge is arranged on the inner wall of the second rod member along the length direction, and the convex ridge is suitable for being inserted into the groove, so that the second rod member is suitable for driving the cam to rotate through the convex ridge; at least two convex arcs are symmetrically arranged on the side wall of the cam, and the at least two convex arcs are suitable for squeezing the elastic arm when the cam rotates relative to the fixed base, so as to press the elastic arm against the inner wall of the second rod member.

2. The telescopic locking structure of the selfie stick according to claim 1, characterized in that: The cam is sleeved on the rotating shaft, and a screw is fixed on the top end of the rotating shaft.

3. The telescopic locking structure of the selfie stick according to claim 1, characterized in that: The cam is substantially columnar, with a circular flange radially extending from one of the bottom surfaces, and the groove is arranged at the edge of the flange.

4. The telescopic locking structure of the selfie stick according to claim 1, characterized in that: At least one protrusion is arranged on the connecting portion, and a buckle hole suitable for buckling the protrusion is arranged at a corresponding position of the first rod.

5. The telescopic locking structure of the selfie stick according to claim 1, characterized in that: An annular damping member is arranged in the middle of the fixed base, and the damping member is suitable for forming an interference fit with the inner wall of the second rod.

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