A folding rod

Abstract

This utility model discloses a folding rod, relating to the technical field of folding rods. It includes two connecting blocks with a rotating part between them. A connecting rod is rotatably connected to the side of each connecting block opposite the rotating part. The two connecting blocks rotate to form a first limit angle and a second limit angle. A first positioning angle and a second positioning angle are formed between one connecting block and the connecting rod, and a secondary first positioning angle and a secondary second positioning angle are formed between the other connecting block and the connecting rod. When the first limit angle is formed between the two connecting blocks, and the first positioning angle and the secondary first positioning angle are formed between the connecting block and the connecting rod, the folding rod is in an unfolded state. When the second limit angle is formed between the two connecting blocks, and the second positioning angle and the secondary second positioning angle are formed between the connecting block and the connecting rod, the folding rod is in a retracted state. This utility model achieves two stable states—unfolded and retracted—through "dual-level angle limiting," eliminating the need for additional locking mechanisms; a single flip is all that's needed to reach the desired position, making operation quick and easy.

Description

Technical Field

[0001] This utility model relates to the technical field of folding rods, and in particular to a folding rod. Background Technology

[0002] Existing portable support poles, selfie sticks, trekking poles and other folding structures generally adopt the "external hinge + quick-release buckle" solution. The hinge protrudes from the outline of the pole body and has a large thickness after folding. The buckle is mostly a plastic protrusion or spring pin, which is prone to wear and loosening after thousands of opening and closing, causing the pole body to wobble in the unfolded state or even collapse on its own.

[0003] Similarly, with the popularization of fitness for all and mobile health scenarios, handheld massage sticks (including fascia guns and beauty sticks) need to be shorter in length and thinner in thickness so that they can be put into sports waist bags, pants pockets or personal luggage.

[0004] In addition, the external hinge lacks visual positioning cues, requiring users to operate with both hands and visually check whether it is fully extended, resulting in a poor user experience.

[0005] Moreover, conventional rotating storage structures have poor overall storage performance, take up a lot of space, require frequent operation, and are inefficient. Utility Model Content

[0006] Purpose of the invention: The purpose of this utility model is to provide a folding stick that solves the problems of poor storage effect and frequent operation of conventional storage structures.

[0007] Technical solution:

[0008] A folding rod includes two connecting blocks, a rotating part is provided between the two connecting blocks, and a connecting rod is rotatably connected to the side of each connecting block opposite to the rotating part.

[0009] The two connecting blocks rotate to form a first limit angle and a second limit angle. A first positioning angle and a second positioning angle are formed between one of the connecting blocks and the connecting rod, and a secondary first positioning angle and a secondary second positioning angle are formed between the other connecting block and the connecting rod.

[0010] When a first limit angle is formed between the two connecting blocks, and a first positioning angle and a secondary first positioning angle are formed between the connecting block and the connecting rod, the folding rod is in the unfolded state;

[0011] When a second limit angle is formed between the two connecting blocks, and a second positioning angle and a secondary second positioning angle are formed between the connecting block and the connecting rod, the folding rod is in a stowed state.

[0012] Preferably, the connecting block further includes a connecting post, and the connecting rod is provided with a rotating groove, wherein the connecting post is rotatably connected to the connecting rod within the rotating groove.

[0013] Preferably, the connecting rod has an arc surface on the bottom wall of the rotating groove, and the connecting column has a chamfer that matches the arc surface.

[0014] Preferably, the connecting rod has a first notch and a second notch on both sides of the rotating groove. When it is located at the first positioning angle or the sub-first positioning angle, the connecting rod abuts against the first notch, and when it is located at the second positioning angle, the connecting rod abuts against the second notch.

[0015] Preferably, the connecting rod and the connecting column are rotatably connected by a connecting shaft, both ends of the connecting shaft are threaded with nuts, and a washer is sleeved between the nuts at both ends of the connecting shaft, with the washer abutting against the connecting rod.

[0016] In this embodiment, the nut-washer combination provides precise axial preload, preventing the nut from loosening under long-term vibration, and allowing for easy readjustment with just a regular screwdriver during maintenance.

[0017] Preferably, the washer is interference-fitted with the nut and the connecting rod.

[0018] In this embodiment, the interference fit creates elastic damping, resulting in a smooth folding feel and the ability to pause at any intermediate angle, thus preventing "automatic sagging."

[0019] Preferably, each of the two connecting blocks includes a mating surface that abuts against each other, and the connecting portion is located at the mating surface.

[0020] In this embodiment, the mating surface becomes the main force-bearing surface, and the impact force is dispersed over a large area when unfolded, reducing the shear force of the rotating screw and extending its service life.

[0021] Preferably, the end of the connecting column is connected to a universal ball, the universal ball is embedded in the rotating groove, and a fastening screw for fixing the universal ball is rotatably installed on the connecting rod.

[0022] Preferably, the normal of the mating surface forms an angle with the axis of the connecting rod.

[0023] In this embodiment, the tilted axis makes the two rods "misaligned and parallel" after folding, reducing the storage thickness and making it easier to put into narrow gaps or backpack side pockets.

[0024] Preferably, the outer wall of the connecting rod is connected to a sleeve block, and the sleeve block and the connecting block are provided with a ratchet surface on their circumferential surfaces. When the first limit angle and the second limit angle are located, the ratchet surfaces of the two connecting blocks are continuous.

[0025] Preferably, the sleeve and the connecting rod are fitted with a clearance fit, the inner wall of the sleeve is provided with a connecting rib, and the sleeve is fixedly connected to the connecting rod through the connecting rib.

[0026] Beneficial effects: The "dual-angle limit" achieves two stable states, unfolded and folded, without the need for additional locks. It can be put into place with a single flip, making it quick and easy to operate. At the same time, by adjusting the angle through multiple rotations, the space occupied can be further reduced, improving the storage effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the second limit angle structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the connecting rod and connecting column structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the cross-sectional structure of the connecting rod of this utility model.

[0031] Reference numerals: 11. Connecting block; 13. Mating surface; 14. Connecting rod; 15. Connecting column; 16. Rotating groove; 17. Connecting shaft; 18. Nut; 19. Washer; 20. First notch; 21. Second notch; 22. Sleeve block; 24. Razor surface; 25. Connecting rib. Detailed Implementation

[0032] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] like Figure 1 and Figure 2 As shown, a folding rod includes two connecting blocks 11, with a rotating part between the two connecting blocks 11. In this embodiment, the rotating part includes a rotating shaft and a bearing. The two connecting blocks 11 have mating surfaces 13 that abut against each other at the rotating part. The rotating shaft is perpendicular to the mating surface 13 and is located at the center of the mating surface 13. The connecting blocks 11 rotate by the rotating shaft.

[0035] The two connecting blocks 11 also include connecting rods 14, which are located on the side of the connecting blocks 11 away from the rotating shaft.

[0036] The axis of the connecting rod 14 forms an angle with the axis of the rotating shaft, which allows the connecting rod 14 to rotate with the connecting block 11, so that the two connecting rods 14 can form a first limit angle and a second limit angle.

[0037] Furthermore, in this embodiment, when the folding rod is in the unfolded state, the two connecting rods 14 are located on the same straight line, and the first limit angle is 180 degrees. After the folding rod is rotated, the two connecting rods 14 can form a second limit angle, and the two connecting rods 14 are perpendicular to each other, with the second limit angle being 90 degrees.

[0038] To accommodate the two connecting rods 14 forming the first limit angle, the mating surface 13 is an inclined surface. The angle of the inclined surface 13 can be adjusted according to the angle requirement of the second limit angle.

[0039] Among them, the two rotating blocks 11 can rotate infinitely, and the connecting rods 14 on both sides can be rotated arbitrarily as needed. At the same time, a limit structure can also be set between the two rotating blocks 11 to adjust the rotation.

[0040] Furthermore, the connecting block 11 also includes a connecting post 15, one end of which is fixedly connected to the connecting block 11, and the other end of which is rotatably connected to the connecting rod 14.

[0041] The connecting column 15 and the connecting block 11 can be integrally formed, or the connecting column 15 and the connecting block 11 can be fixedly connected by bolts.

[0042] When the folding rod is in the unfolded state, the two connecting posts 15 and the two connecting rods 14 are on the same straight line.

[0043] Among them, the two connecting posts 15 and the corresponding connecting rods 14 can form a first positioning angle, a second positioning angle, a secondary first positioning angle, and a secondary second positioning angle.

[0044] In this embodiment, when a first limit angle is formed between the two connecting blocks, and a first positioning angle and a secondary first positioning angle are formed between the connecting block and the connecting rod, the folding rod is in an unfolded state and is cylindrical.

[0045] When a second limit angle is formed between the two connecting blocks, and a second positioning angle and a secondary second positioning angle are formed between the connecting block and the connecting rod, the folding rod is in a retracted state. In this embodiment, the second positioning angle and the secondary second positioning angle are the same, and the two connecting rods 14 are attached to each other and set in parallel.

[0046] The angles of the second positioning angle and the secondary second positioning angle can be adjusted as needed, and the angles of the second positioning angle and the secondary second positioning angle can be different.

[0047] like Figure 3-4 As shown, the connecting rod 14 is further provided with a rotating groove 16 at one end facing the connecting post 15. The connecting post 15 extends into the rotating groove 16. The connecting post 15 and the connecting rod 14 are rotatably connected by a connecting shaft 17. The connecting shaft 17 passes through the connecting rod 14 and the connecting post 15 radially.

[0048] Both ends of the connecting shaft 17 extend out of the connecting rod 14 and are threadedly connected to nuts 18. At the same time, a washer 19 is also fitted on the outside of the connecting rod 14. The washer 19 is located between the connecting rod 14 and the nut 18. The washer 19 is interference-fitted with the connecting rod 14 and the nut 18. When the nut 18 rotates, the friction between the washer 19 and the connecting rod 14 and the nut 18 will change. By changing the damping, the smoothness of the rotation between the connecting rod 14 and the connecting post 15 is controlled, which facilitates the control of the angle change between the connecting rod 14 and the connecting post 15.

[0049] The bottom of the rotating groove 16 is provided with an arc surface, and the connecting column 15 is provided with a corresponding arc surface, so that the connecting column 15 can rotate in the rotating groove 16.

[0050] The connecting rod 14 is provided with a first notch 20 and a second notch 21 on both sides of the rotating groove 16. When it is located at the first positioning angle or the sub-first positioning angle, the connecting post 15 abuts against the first notch 20. When it is located at the second positioning angle, the connecting post 15 abuts against the second notch 21. The first notch 20 and the second notch 21 limit the extreme angle between the connecting rod 14 and the connecting post 15.

[0051] Meanwhile, the outer wall of the connecting rod 14 is connected to a sleeve block 22. Both the sleeve block 22 and the connecting block 11 have a ratchet surface 24 on their circumferential surfaces. When they are at the first limit angle and the second limit angle, the ratchet surfaces 24 of the two connecting blocks 11 are continuous.

[0052] The sleeve 22 is clearance-fitted with the connecting rod 14. The inner wall of the sleeve 22 is provided with a connecting rib 25, and the sleeve 22 is fixedly connected to the connecting rod 14 through the connecting rib 25.

[0053] In another embodiment, the end of the connecting column 17 no longer uses a rigid transverse shaft hole structure, but is instead formed with a universal ball. The universal ball is made of bearing steel, with a mirror-polished surface and hard chrome plated. The universal ball is integrally embedded in the rotating groove 16 of the connecting rod 14. The bottom of the rotating groove 16 is machined into a hemispherical cavity that matches the radius of the universal ball to reduce the coefficient of friction and improve wear resistance. An annular elastic retaining ring is provided at the opening of the cavity to prevent the universal ball from coming out under axial impact or vibration conditions, while allowing the ball to perform ±30° conical swing and 360° continuous rotation within any three-dimensional angle, achieving true universal adjustment.

[0054] A threaded hole extending radially into a recess is formed on the side wall of the connecting rod 14, and a fastening screw is installed inside the threaded hole. The front end of the fastening screw is a spherical copper alloy pressure head, and the rear end is a knurled hand-tightening wheel. A butterfly spring washer and an anti-loosening nut are sequentially fitted between the hand-tightening wheel and the outer wall of the connecting rod. When it is necessary to lock the angle, simply turn the hand-tightening wheel clockwise, and the pressure head will grip the universal ball, generating a damping torque to ensure that the connecting rod 14 will not shift on its own under sudden loads. When it is necessary to adjust the angle, a slight turn in the opposite direction will release it instantly, allowing for quick folding or unfolding with one hand. The entire universal ball-fastening screw combination structure allows the folding rod to be adjusted at any extreme angle.

[0055] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A folding rod, characterized in that, It includes two connecting blocks, and a rotating part is provided between the two connecting blocks. A connecting rod is rotatably connected to the side of each connecting block away from the rotating part. The two connecting blocks rotate to form a first limit angle and a second limit angle. A first positioning angle and a second positioning angle are formed between one of the connecting blocks and the connecting rod, and a secondary first positioning angle and a secondary second positioning angle are formed between the other connecting block and the connecting rod. When a first limit angle is formed between the two connecting blocks, and a first positioning angle and a secondary first positioning angle are formed between the connecting block and the connecting rod, the folding rod is in the unfolded state; When a second limit angle is formed between the two connecting blocks, and a second positioning angle and a secondary second positioning angle are formed between the connecting block and the connecting rod, the folding rod is in a stowed state.

2. A folding rod according to claim 1, characterized in that, The connecting block further includes a connecting column, and the connecting rod is provided with a rotating groove, wherein the connecting column is rotatably connected to the connecting rod within the rotating groove.

3. A folding rod according to claim 2, characterized in that, The connecting rod has an arc surface on the bottom wall of the rotating groove, and the connecting column has a chamfer that matches the arc surface.

4. A folding rod according to claim 3, characterized in that, The connecting rod has a first notch and a second notch on both sides of the rotating groove. When it is located at the first positioning angle or the sub-first positioning angle, the connecting rod abuts against the first notch. When it is located at the second positioning angle, the connecting rod abuts against the second notch.

5. A folding rod according to claim 2, characterized in that, The connecting rod and the connecting column are rotatably connected by a connecting shaft. Nuts are threaded to both ends of the connecting shaft, and a washer is fitted between the nuts at both ends of the connecting shaft. The washer abuts against the connecting rod.

6. A folding rod according to claim 5, characterized in that, The gasket is interference-fitted with the nut and the connecting rod.

7. A folding rod according to claim 2, characterized in that, The end of the connecting column is connected to a universal ball, which is embedded in the rotating groove. A fastening screw that abuts against the universal ball is rotatably installed on the connecting rod.

8. A folding rod according to claim 1, characterized in that, Each of the two connecting blocks includes a mating surface that abuts against each other, and the connecting portion is located at the mating surface.

9. A folding rod according to claim 8, characterized in that, The normal to the mating surface forms an angle with the axis of the connecting rod.

10. A folding rod according to claim 1, characterized in that, The outer wall of the connecting rod is connected to a sleeve block. The sleeve block and the connecting block are provided with a ratchet surface on their circumferential surfaces. When the first limit angle and the second limit angle are located, the ratchet surfaces of the two connecting blocks are continuous.

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