Unipod locking structure
By introducing fasteners and engagement mechanisms into the monopod, the problem of loosening of the inner and outer tubes was solved, achieving a stable locking effect and reducing manufacturing costs.
Patent Information
- Application Number
- CN202422684290.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-04
AI Technical Summary
The locking mechanism between the inner and outer tubes of the existing monopod is not secure, causing it to loosen during use and making it impossible to fix it at the required height.
The structure employs fasteners including clamps, wrenches, and positioning sleeves. The gap width is adjusted by rotating the wrench to achieve the fastening of the inner and outer tubes. Combined with the engagement of the positioning holes and toothed grooves, a stable connection between the inner and outer tubes is ensured.
It improves the fastening effect of the inner and outer tubes, prevents loosening, ensures fixation at the required height, and has a simple structure and low cost.
Smart Images
Figure CN223498357U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of monopod locking, and in particular to a monopod locking structure. Background Technology
[0002] In existing monopods, the inner and outer tubes are locked together by tightening a one-piece molded screw with an aluminum casting. From a practical point of view, although this structure is simple, the locking between the inner and outer tubes is not firm and the load-bearing capacity is insufficient. This causes the inner and outer tubes to loosen during use, resulting in relative movement between them and making it impossible to fix them at the required height. Utility Model Content
[0003] In view of the shortcomings and defects of the existing technology, a monopod locking structure is provided. In order to achieve the purpose of better securing the inner tube and the outer tube, the present invention provides the following technical solution.
[0004] A monopod locking structure includes an outer tube and an inner tube that fits inside the outer tube, with the inner tube extending and retracting within the outer tube. A fastener is provided at the upper end of the outer tube. The fastener includes a clamp, a wrench, and a positioning sleeve. The positioning sleeve is positioned between the inner tube and the fastener. The wrench is rotatably connected to the clamp via a pivot. The clamp has a gap; rotating the wrench changes the width of the gap, causing the fastener to clamp or loosen the outer tube and the inner tube.
[0005] Compared with the prior art, this utility model provides a fastener on the outer tube, which includes a clamp and a fastener. The clamp is set on the outer tube, and the tightness of the fastener on the inner and outer tubes can be adjusted by turning a wrench, which is convenient for adjustment. A positioning sleeve is provided in the gap between the clamp and the inner tube, so that the fastener can fully tighten the inner and outer tubes. The overall structure is simple and the manufacturing cost is low.
[0006] Furthermore, the inner tube is provided with several positioning holes, and the wrench is provided with a positioning buckle. When the wrench is rotated toward the outer tube, the clamp locks the outer tube and the inner tube, and the positioning buckle is configured to cooperate with the positioning hole; when the wrench is rotated away from the outer tube, the clamp loosens the outer tube and the inner tube, and the positioning buckle disengages from the positioning hole.
[0007] With the above improvements, when the wrench is turned toward the outer tube, the positioning hole on the inner tube and the positioning buckle on the wrench are matched to achieve a positioning effect when locking the outer tube and the inner tube, ensuring that they can be fully tightened and preventing accidents.
[0008] Furthermore, the clamp is provided with a toothed groove, and the wrench is provided with a rack on the side near the rotating shaft. The rack engages with the toothed groove. When the wrench is rotated toward the outer tube, the rack drives the toothed groove to move toward the gap, the gap decreases, and the clamp is tightened.
[0009] With the above improvements, the clamp is equipped with a toothed groove, and the wrench is equipped with a rack on the side near the rotating shaft. The meshing of the rack and the toothed groove allows the clamp to be tightened when the wrench is rotated towards the outer tube.
[0010] Furthermore, the positioning sleeve is provided with a buckle block, which is configured to cooperate with the inner tube. When the wrench is rotated away from the outer tube, the rack drives the toothed groove to move away from the gap, the gap increases, the clamp is loosened, the inner tube pushes out of the buckle block, and the inner tube extends and retracts relative to the outer tube.
[0011] Through the above improvements, the meshing of the rack and toothed groove allows the clamp to be loosened when the wrench is rotated away from the outer tube; and when the inner tube extends or retracts, the buckle on the positioning sleeve is pushed out, facilitating the extension and retraction of the inner tube.
[0012] Furthermore, a fastening rod is provided inside the clamp. One end of the fastening rod is fitted onto the rotating shaft, and the other end is fixedly connected to the clamp. The wrench includes a first end face and a second end face. The distance from the center of the rotating shaft to the first end face is greater than the distance to the second end face. When the wrench is rotated toward the outer tube, the first end face abuts against the clamp, and the gap is reduced by the fastening rod. When the wrench is rotated away from the outer tube, the second end face abuts against the clamp, and the gap is increased by the fastening rod.
[0013] With the above improvements, a fastening rod is provided on the clamp, which can guide the clamp when it contracts and relaxes; the tightening of the fastener is achieved by the cooperation between the fastening rod, the wrench and the clamp, which is convenient, effective and relatively simple to operate.
[0014] Furthermore, the lower end of the positioning sleeve is provided with a snap-fit block, and the clamp is provided with a mating groove, and the snap-fit block is snap-fitted and mated in the mating groove.
[0015] Through the above improvements, a snap-fit block is provided at the lower end of the positioning sleeve. The snap-fit block engages with the mating groove on the clamp, which allows the clamp and fasteners to be fixed on the outer tube, thus improving the overall stability.
[0016] Furthermore, the outer tube is provided with a fixing hole, and the clamp is provided with a through hole. The through hole and the fixing hole are provided correspondingly and are fixedly connected by bolts.
[0017] With the above improvements, the outer tube is provided with fixing holes, and the clamp is provided with through holes, which are set to correspond to the fixing holes. The through holes and fixing holes are fixedly connected by bolts, so that the clamp can be more stably fixed on the outer tube, further improving the overall stability. Attached Figure Description
[0018] Figure 1 A three-dimensional structural diagram of a monopod locking structure;
[0019] Figure 2 A schematic diagram of the formal view structure of a monopod locking mechanism;
[0020] Figure 3 A top-view cross-sectional view of a monopod locking structure;
[0021] Figure 4 A top-view cross-sectional view of a monopod locking structure (with a wrench rotating);
[0022] Figure 5 This is a three-dimensional structural schematic diagram of a second embodiment of a monopod locking structure;
[0023] Figure 6 This is a formal structural diagram of a second embodiment of a monopod locking structure;
[0024] Figure 7 A top-view cross-sectional view of a second embodiment of a monopod locking structure;
[0025] Figure 8 This is a top-view cross-sectional view of a second embodiment of a monopod locking structure (with the wrench rotating).
[0026] Among them, 1. Outer tube; 1.1. Fixing hole; 2. Inner tube; 2.1. Positioning hole; 3. Fastener; 3.1. Clamp; 3.11. Gap; 3.12. Toothed groove; 3.13. Fastening rod; 3.14. Mating groove; 3.15. Through hole; 3.2. Wrench; 3.21. Positioning buckle; 3.22. Rack; 3.23. First end face; 3.24. Second end face; 3.3. Positioning sleeve; 3.31. Buckle block; 3.32. Snap block; 4. Rotating shaft. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] like Figures 1 to 8 The monopod locking structure shown includes an outer tube 1 and an inner tube 2 that fits inside the outer tube 1, with the inner tube 2 extending and retracting within the outer tube 1. A fastener 3 is provided at the upper end of the outer tube 1. The fastener 3 includes a clamp 3.1, a wrench 3.2, and a positioning sleeve 3.3. The positioning sleeve 3.3 is positioned between the inner tube 2 and the fastener 3. The wrench 3.2 is rotatably connected to the clamp 3.1 via a pivot 4. The clamp 3.1 has a gap 3.11. By rotating the wrench 3.2, the width of the gap 3.11 is changed, and the fastener 3 clamps or loosens the outer tube 1 and the inner tube 2.
[0030] The inner tube 2 is set inside the cavity of the outer tube 1. The inner tube 2 can move telescopically relative to the outer tube 1. The upper end of the outer tube 1 is provided with a fastener 3, which includes a clamp 3.1, a wrench 3.2, and a positioning sleeve 3.3. The positioning sleeve 3.3 is set in the gap between the inner tube 2 and the fastener 3, which can better lock the inner tube 2. The lower end of the positioning sleeve 3.3 is provided with a snap-fit block 3.32. The clamp 3.1 of the fastener 3 is provided with a mating groove 3.14, and the snap-fit block 3.32 is snap-fitted and mated in the mating groove 3.14.
[0031] The outer tube 1 is provided with a fixing hole 1.1, and the clamp 3.1 is provided with a through hole 3.15. The through hole 3.15 is provided corresponding to the fixing hole 1.1. After the clamp 3.1 of the fastener 3 is engaged with the snap-fit block 3.32, the fastener 3 is initially fixed to the upper end of the outer tube 1. After the through hole 3.15 is fixedly connected to the fixing hole 1.1 by bolts, the fastener 3 can be further firmly set on the upper end of the outer tube 1.
[0032] The wrench 3.2 has a positioning buckle 3.21 on the side near the inner tube 2. Several positioning holes 2.1 are provided on the inner tube 2. The mating holes are used to mate with the protrusions on the mating parts. The positioning buckle 3.21 mates with the positioning holes 2.1.
[0033] Two implementation methods are provided for the specific settings of fastener 3.
[0034] Example 1: The clamp 3.1 and wrench 3.2 of the fastener 3 are rotatably connected by a rotating shaft 4. A rack 3.22 is provided on the inner side of the wrench 3.2 near the rotating shaft 4. A toothed groove 3.12 is provided on the clamp 3.1. The toothed groove 3.12 meshes with the rack 3.22. The meshing of the rack 3.22 and the toothed groove 3.12 drives the tightening of the outer tube 1 and the inner tube 2. When the wrench 3.2 rotates away from the outer tube 1, the rack 3.22 drives the toothed groove 3.12 to move away from the gap 3.11, the gap 3.11 increases, and the clamp 3.1 loosens. When the wrench 3.2 rotates towards the outer tube 1, the rack 3.22 drives the toothed groove 3.12 to move towards the gap 3.11, the gap 3.11 decreases, and the clamp 3.1 tightens.
[0035] A limit block is provided on the inner side of the wrench 3.2 at the end away from the rotating shaft 4. When the limit block abuts against the outer surface of the clamp 3.1, the wrench 3.2 rotates to the limit position to prevent excessive rotation from affecting the outer tube 1, inner tube 2 and fastener 3 at the same time.
[0036] The positioning sleeve 3.3 is provided with a buckle 3.31. In the locked state, the buckle 3.31 cooperates with the inner tube 2 for initial positioning. At the same time, the positioning buckle 3.21 cooperates with the positioning hole 2.1, and the limiting block abuts against the outer wall of the clamp 3.1.
[0037] Example 2: A fastening rod 3.13 is provided inside the clamp 3.1. One end of the fastening rod 3.13 is fitted on the rotating shaft 4, and the other end is fixedly connected to the clamp 3.1. The fastening rod 3.13, the clamp 3.1, and the wrench 3.2 are used as the driving force to fasten the outer tube 1 and the inner tube 2.
[0038] The wrench 3.2 abuts against the clamp 3.1. The wrench 3.2 includes a first end face 3.23 and a second end face 3.24. The distance from the center of the rotating shaft 4 to the first end face 3.23 is greater than the distance to the second end face 3.24. When the wrench 3.2 rotates towards the outer tube 1, the first end face 3.23 abuts against the clamp 3.1, and the gap 3.11 is reduced by the fastening rod 3.13. When the wrench 3.2 rotates away from the outer tube 1, the second end face 3.24 abuts against the clamp 3.1, and the gap 3.11 is increased by the fastening rod 3.13.
[0039] When in use, open the wrench 3.2. During the extension and retraction of the inner tube 2, the tube body of the inner tube 2 pushes the protrusion of the mating part out of the mating hole, so that the wrench 3.2 cannot lock the inner tube 2. When the inner tube 2 extends or retracts to the set length, the buckle 3.31 on the positioning sleeve 3.3 resets, and the wrench 3.2 can be rotated to lock the inner tube 2. At this time, when the wrench 3.2 is rotated, the wrench 3.2 rotates towards the outer tube 1, and the positioning buckle 3.21 on the wrench 3.2 locks the positioning hole 2.1 on the inner tube 2, so that the clamp 3.1 can lock the inner tube 2 tightly.
[0040] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.
Claims
1. A monopod locking structure, characterized in that: The device includes an outer tube (1) and an inner tube (2) that is fitted inside the outer tube (1). The inner tube (2) extends and retracts inside the outer tube (1). A fastener (3) is provided at the upper end of the outer tube (1). The fastener (3) includes a clamp (3.1), a wrench (3.2), and a positioning sleeve (3.3). The positioning sleeve (3.3) is located between the inner tube (2) and the fastener (3). The wrench (3.2) is rotatably connected to the clamp (3.1) via a pivot (4). A gap (3.11) is provided on the clamp (3.1). By rotating the wrench (3.2), the width of the gap (3.11) is changed, and the fastener (3) clamps or loosens the outer tube (1) and the inner tube (2).
2. The monopod locking structure according to claim 1, characterized in that: The inner tube (2) is provided with a plurality of positioning holes (2.1), and the wrench (3.2) is provided with a positioning buckle (3.21). When the wrench (3.2) is rotated toward the outer tube (1), the clamp (3.1) locks the outer tube (1) and the inner tube (2), and the positioning buckle (3.21) is configured to cooperate with the positioning hole (2.1); when the wrench (3.2) is rotated away from the outer tube (1), the clamp (3.1) loosens the outer tube (1) and the inner tube (2), and the positioning buckle (3.21) disengages from the positioning hole (2.1).
3. The monopod locking structure according to claim 1, characterized in that: The clamp (3.1) is provided with a toothed groove (3.12), and the wrench (3.2) is provided with a rack (3.22) on the side near the rotating shaft (4). The rack (3.22) meshes with the toothed groove (3.12). When the wrench (3.2) rotates toward the outer tube (1), the rack (3.22) drives the toothed groove (3.12) to move toward the gap (3.11), the gap (3.11) decreases, and the clamp (3.1) is tightened.
4. The monopod locking structure according to claim 3, characterized in that: The positioning sleeve (3.3) is provided with a buckle (3.31), which is configured to cooperate with the inner tube (2). When the wrench (3.2) rotates away from the outer tube (1), the rack (3.22) drives the toothed groove (3.12) to move away from the gap (3.11), the gap (3.11) becomes larger, the clamp (3.1) loosens, the inner tube (2) pushes out of the buckle (3.31), and the inner tube (2) extends and retracts relative to the outer tube (1).
5. The monopod locking structure according to claim 1, characterized in that: A fastening rod (3.13) is provided inside the clamp (3.1). One end of the fastening rod (3.13) is fitted onto the rotating shaft (4), and the other end is fixedly connected to the clamp (3.1). The wrench (3.2) includes a first end face (3.23) and a second end face (3.24). The distance from the center of the rotating shaft (4) to the first end face (3.23) is greater than the distance to the second end face (3.24). When the wrench (3.2) rotates toward the outer tube (1), the first end face (3.23) abuts against the clamp (3.1), and the gap (3.11) is reduced by the fastening rod (3.13). When the wrench (3.2) rotates away from the outer tube (1), the second end face (3.24) abuts against the clamp (3.1), and the gap (3.11) is increased by the fastening rod (3.13).
6. The monopod locking structure according to claim 1, characterized in that: The lower end of the positioning sleeve (3.3) is provided with a snap-fit block (3.32), and the clamp (3.1) is provided with a mating groove (3.14). The snap-fit block (3.32) is snap-fitted into the mating groove (3.14).
7. A monopod locking structure according to claim 1, characterized in that: The outer tube (1) is provided with a fixing hole (1.1), and the clamp (3.1) is provided with a through hole (3.15). The through hole (3.15) is provided in correspondence with the fixing hole (1.1) and is fixedly connected by bolts.