Skipping rope with length capable of being adjusted without tools
By incorporating a rotating head and adjustment components into the jump rope connector, the problems of cumbersome rope length adjustment and rope twisting in existing racing jump ropes are solved, enabling rope self-rotation and rapid adjustment, thus improving service life and convenience.
Patent Information
- Application Number
- CN202422860668.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The existing speed jump ropes have complicated rope length adjustment and require tools. Furthermore, the rope cannot rotate on its own after adjustment, which can easily lead to rope twisting and damage.
A tool-free adjustable jump rope was designed. By setting a rotating head and adjustment component on the connector, the rope's stable positioning and rotation are achieved by using a limit ring and a sliding adjustment component. The rope can be adjusted by sliding on the rotating head, eliminating the need for tools.
It enables rapid adjustment of rope length and self-rotation, avoids rope twisting, extends rope lifespan, and improves ease of use.
Smart Images
Figure CN223504766U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sports equipment technical field especially relates to the skipping rope of tool -free length adjustment. BACKGROUND
[0002] Skipping rope is a common sport in our daily life, and the existing tool -free skipping rope for skipping rope exercise is generally composed of two handles and a rope connecting the two handles. In order to facilitate the user to swing the rope by holding the handle, the existing technology is provided with a bearing part on the handle for connecting the rope, so that the rope can rotate compared with the handle. The existing competitive skipping rope is directly fixed on the bearing part by means of bolt, which needs to use wrench, screwdriver and other tools to lock the bolt on the handle. On the one hand, the length adjustment mode of the rope is complicated, and on the other hand, the bolt locking mode causes the rope to be unable to rotate relative to the bearing part, and the rope will be twisted, which is easy to cause the damage of the rope. SUMMARY
[0003] Therefore, the utility model provides a tool -free length adjustment skipping rope for solving the technical problems in the above background technology.
[0004] In order to achieve one or part or all of the above purposes or other purposes, the utility model provides a tool -free length adjustment skipping rope, which comprises: a handle, a rope, a connecting piece, a rotating head and an adjusting assembly.
[0005] The handle is provided with two handles, and the two handles are respectively used for connecting two ends of the rope.
[0006] Both ends of the rope are provided with at least two limiting snap rings, and the at least two limiting snap rings are arranged at intervals.
[0007] The connecting piece is rotatably installed on the handle, and the connecting piece is provided with a mounting part.
[0008] The rotating head is detachably connected to the mounting part. The rotating head is provided with a cavity in the inside. The rotating head is provided with a connecting hole connected to the cavity, and the diameter of the connecting hole is greater than the outer diameter of the limiting snap ring.
[0009] The adjusting assembly is provided with an inner cavity hole. The adjusting assembly is slidably installed in the cavity of the rotating head. The adjusting assembly has a first position and a second position. When the adjusting assembly is in the first position, the inner cavity hole is coaxially aligned with the connecting hole, and the limiting snap ring can pass through the rotating head. When the adjusting assembly is in the second position, the inner cavity hole is not coaxially aligned with the connecting hole, and the limiting snap ring is blocked by the adjusting assembly and cannot pass through the rotating head.
[0010] Preferably, the adjusting assembly comprises a sliding block and a return spring.
[0011] The inner cavity hole is arranged on the slider, and an inner diameter of the inner cavity hole is greater than an inner diameter of the connecting hole;
[0012] The slider is slidably installed in the cavity, and a top of the slider has a protrusion extending out of the rotating head; a bottom of the slider is connected to the mounting portion through a return spring;
[0013] When the adjusting assembly is in the first position, the protrusion of the slider is pressed, so that the return spring is in a compressed state, the inner cavity hole is coaxially aligned with the connecting hole, and the limit snap ring can pass through the connecting hole and the inner cavity hole; when the adjusting assembly is in the second position, the return spring lifts the slider, the inner cavity hole is not coaxially aligned with the connecting hole, and the limit snap ring cannot pass through the inner cavity hole.
[0014] Preferably, a top of the rotating head is provided with a guide hole communicating with the cavity, the guide hole is a waist-shaped hole, the sliding protrusion passes through the guide hole, and the protrusion is limited by the guide hole and cannot generate circumferential rotation.
[0015] Preferably, the connecting hole is provided with two, the two connecting holes are symmetrically distributed on two sides of the cavity, when the adjusting assembly is in the second position, the limit snap ring can be placed in the connecting hole, and an outer wall of the limit snap ring can be in contact with an inner wall of the connecting hole.
[0016] Preferably, the slider is provided with a limiting wall on two sides of the connecting hole; when the adjusting assembly is in the second position, a side wall of the limit snap ring can abut against the limiting wall.
[0017] Preferably, a top of the rotating head is provided with a guide hole communicating with the cavity, the guide hole is a waist-shaped hole, the sliding protrusion passes through the guide hole, and the protrusion is limited by the guide hole and cannot generate circumferential rotation.
[0018] Preferably, the slider is further provided with a positioning hole, the positioning hole is distributed on a side of the inner cavity hole close to the return spring, the positioning hole and the inner cavity hole are in communication with each other, and an axis of the positioning hole and an axis of the inner cavity hole are parallel to each other.
[0019] Preferably, an outer wall of the mounting portion is provided with an external thread, a bottom of the rotating head is provided with a threaded hole communicating with the cavity, and the threaded hole is connected to the external thread of the mounting portion in a threaded connection manner.
[0020] Preferably, a plurality of the limit snap rings are used as end counterweights of the rope, so that two ends of the rope are heavy and a middle part of the rope is light.
[0021] Preferably, the handle further includes a hand-held tube and a connecting tube for mounting a connector; the connector includes a rotating rod and bearings at both ends of the rotating rod, the rotating rod is mounted in the connecting tube via the bearings, and the mounting portion is located at the end of the rotating rod away from the hand-held tube.
[0022] Preferably, the handle further includes a rear cover that is threaded onto the end of the handheld tube.
[0023] Implementing the embodiments of this utility model will have the following beneficial effects:
[0024] After adopting the above-mentioned tool-free adjustable length jump rope, a rotating head with a connection hole is set on the rotatable connector. The rope with a limit ring passes through the connection hole, and then an adjusting component that can slide in the cavity is used to make its inner hole aligned with the connection hole on a different axis. This makes the rope stably restricted to the rotating head. The rope can be limited by the adjusting component installed on the rotating head, without the need for additional tools. This makes it convenient for users to use the racing jump rope. The tool-free adjustable length jump rope will not detach from the rotating head during use, and the rope itself can rotate, avoiding rope twisting and improving the rope's service life. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] in:
[0027] Figure 1 This is a schematic diagram of the overall structure in the embodiment. Figure 1 ;
[0028] Figure 2 This is an exploded view of the overall structure in the embodiment;
[0029] Figure 3 This is a schematic diagram of the rotating head in the embodiment. Figure 1 ;
[0030] Figure 4 This is a schematic diagram of the rotating head in the embodiment. Figure 2 ;
[0031] Figure 5 This is a schematic diagram of the slider structure in the embodiment;
[0032] Figure 6This is a frontal projection view of the slider in the embodiment;
[0033] Figure 7 This is a cross-sectional view of a portion of the structure in the embodiment.
[0034] Figure label:
[0035] 1. Handle; 10. Handheld tube; 11. Connecting tube; 12. Rear cover;
[0036] 2. Rope; 20. Limiting shackle; 21. Counterweight;
[0037] 3. Connecting parts; 30. Mounting parts; 31. Rotating rod; 32. Bearings;
[0038] 4. Rotating head; 40. Cavity; 400. Connecting hole; 401. Threaded hole; 402. Guide hole;
[0039] 5. Adjustment component; 50. Slider; 500. Inner cavity; 501. Protrusion; 502. Limiting wall; 503. Positioning hole; 51. Return spring. Detailed Implementation
[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.
[0041] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0042] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0043] As attached Figures 1-7As shown, this utility model embodiment provides a tool-free adjustable jump rope, which includes a handle 1, a rope 2, a connector 3, a rotating head 4, and an adjustment assembly 5. Two handles 1 are provided, each for connecting to one end of the rope 2. Each end of the rope 2 has at least two retaining rings 20, spaced apart from each other. The connector 3 is rotatably mounted on the handle 1 and has a mounting portion 30. The rotating head 4 is detachably connected to the mounting portion 30. The rotating head 4 has an internal cavity 40 and is equipped with... The rotating head 4 has a connecting hole 400 that connects to the cavity 40. The diameter of the connecting hole 400 is larger than the outer diameter of the retaining ring 20. The adjusting component 5 has an inner cavity hole 500. The adjusting component 5 can be slidably installed in the cavity 40 of the rotating head 4. The adjusting component 5 has a first position and a second position. When the adjusting component 5 is in the first position, the inner cavity hole 500 is coaxially aligned with the connecting hole 400, and the retaining ring 20 can pass through the rotating head 4. When the adjusting component 5 is in the second position, the inner cavity hole 500 is not coaxially aligned with the connecting hole 400, and the retaining ring 20 is blocked by the adjusting component 5 and cannot pass through the rotating head 4.
[0044] Specifically, the handle 1 includes a handheld tube 10 and a connecting tube 11 for mounting the connector 3; the connector 3 includes a rotating rod 31 and bearings 32 at both ends of the rotating rod 31. The rotating rod 31 is mounted inside the connecting tube 11 via the bearings 32. Mounting parts 30 are located at the end of the rotating rod 31 furthest from the handheld tube 10. The end of the rotating rod 31 furthest from the mounting parts 30 is fitted onto the bearings 32 with a nut to achieve axial limiting and prevent the rotating rod 31 from disengaging from the connecting tube 11 during rotation. The connecting tube 11 and the handheld tube 10 can be connected by threads or snap-fit, etc. This separate design is advantageous. The assembly of components such as the rotating rod 31 inside the connecting tube 11 and the gyroscope inside the handheld tube 10; the rotating head 4 can be fixed to the mounting part 30 by means of threads, snaps, etc., so that the rotating head 4 can rotate together with the connecting part 3. During installation, the end of the rope 2 is passed through the connecting hole 400, so that the limiting ring 20 also passes through the connecting hole 400. Then, the limiting ring 20 on the rotating head 4 is limited or not limited by the adjusting component 5 set in the rotating head 4. Specifically, the adjusting component 5 slides to different positions in the cavity 40, and the alignment of its inner cavity hole 500 with the connecting hole 400 is adjusted. To achieve this, in this embodiment, the diameter of the inner cavity 500 is larger than the outer diameter of the limiting ring 20. When the adjusting component 5 is in the first position, the inner cavity 500 and the connecting hole 400 are coaxially aligned. At this time, the adjusting component 5 does not block the inner opening of the connecting hole 400, and the limiting ring 20 can pass through the inner cavity 500 and thus detach from the rotating head 4 or be adjusted. When the adjusting component 5 is in the second position, the inner cavity 500 and the connecting hole 400 are not aligned. At this time, the adjusting component 5 partially blocks the inner opening of the connecting hole 400, that is, the inner diameter of the part of the inner cavity 500 communicating with the connecting hole 400 is smaller. The outer diameter of the limiting ring 20 is reduced, thus preventing the limiting ring 20 from passing through the inner cavity hole 500, i.e., preventing it from detaching from the rotating head 4. Since the adjusting component 5 only changes the positional relationship between the inner cavity hole 500 and the connecting hole 400, and the diameter of the same area of the inner cavity hole 500 and the connecting hole 400 is still larger than the diameter of the rope body 2, the rope body 2 can still rotate, thereby avoiding the situation where a certain point of the rope 2 is under pressure for a long time. This solves the problem of rope twisting and damage caused by repeated swinging of traditional jump ropes, thereby improving the service life of the tool-free adjustable jump rope.In addition, this embodiment can be equipped with multiple limiting rings 20. By connecting the connecting hole 400 of the rotating head 4 between any two limiting rings 20, the user can quickly adjust the length of the rope 2. Alternatively, the connecting hole 400 of the rotating head 4 can be connected to the innermost limiting ring 20. Since the rope 2 will swing continuously during use, the end wall of the limiting ring 20 will abut against the rotating head 4 or the adjusting component 5 to achieve limiting. At this time, the force is not concentrated on a single point of the rope 2, so that the rotation of the rope 2 and the rotation of the rotating head 4 can be independent of each other, avoiding the rope 2 from twisting due to repeated swinging and improving the service life of the rope 2. It should be noted that the adjusting component 5 can be a bolt that is easy to tighten. For example, a threaded hole can be provided on the rotating head 4 corresponding to the connecting hole 400. The diameter of the connecting hole 400 can be adjusted by changing the length of the bolt extending into the cavity, thereby limiting the retaining ring 20. The adjusting component 5 can also use a slider 50 with a reset function, as described later, to adjust the diameter of the connecting hole 400.
[0045] In addition, the multiple limiting rings 20 located at both ends of the rope 2 can also provide counterweight for the rope 2, making the ends of the rope 2 heavier and the middle lighter, thereby increasing the rotational speed of the rope and preventing the rope 2 from having an excessive weight, which would increase its wind resistance coefficient. Furthermore, counterweights 21 can be provided at the ends of the rope 2 outside the limiting rings 20, such as... Figure 7 As shown, the counterweight 21 can be made of an aluminum sleeve that is easy to assemble. The aluminum sleeve can be fixed to the end of the rope 2 by riveting, thereby increasing the inertia and further increasing the rotational speed of the rope 2.
[0046] In summary, this embodiment provides a rotating head 4 with a connecting hole 400 on a rotatable connector 3. A rope 2 with a limiting ring 20 passes through the connecting hole 400, and an adjusting component 5 that can slide in the cavity 40 places the inner cavity 500 in a second position that is not aligned with the connecting hole 400 on the same axis. This allows the rope 2 to be stably confined to the rotating head 4. The rope 2 can be confined simply by adjusting the adjusting component 5 installed on the rotating head 4, without the need for additional tools. This makes it convenient for users to use the racing jump rope. The tool-free adjustable length jump rope ensures that the rope 2 will not detach from the rotating head 4 during use, and the rope 2 can rotate on its own, preventing the rope 2 from twisting and increasing its service life.
[0047] See appendix Figure 2 and attached Figure 5The adjusting component 5 includes a slider 50 and a return spring 51; an inner cavity 500 is formed on the slider 50, and the inner diameter of the inner cavity 500 is larger than the inner diameter of the connecting hole 400; the slider 50 is slidably installed in the cavity 40, and the top of the slider 50 has a protrusion 501 extending out of the rotating head 4; the bottom of the slider 50 is connected to the mounting part 30 through the return spring 51; when the adjusting component 5 is in the first position, the inner cavity 500 is coaxially aligned with the connecting hole 400, and the return spring 51 is in a compressed state, and the limiting ring 20 can pass through the connecting hole 400 and the inner cavity 500; when the adjusting component 5 is in the second position, the inner cavity 500 is not aligned with the connecting hole 400, and the limiting ring 20 cannot pass through the inner cavity 500.
[0048] Specifically, a guide hole 402 communicating with the cavity 40 is provided at the top of the rotating head 4. The guide hole 402 is an oblong hole. The sliding protrusion 501 passes through the guide hole 402. The protrusion 501 is restricted by the guide hole 402 and cannot rotate circumferentially. In this embodiment, the length of the protrusion 501 is greater than the depth of the guide hole 402, so that the protrusion 501 is always exposed at the top of the rotating head 4. This allows the user to press the protrusion 501 to make the slider 50 slide in the cavity 40 and compress the return spring 51. In actual operation, pressing the protrusion 501 puts the adjusting component 5 in the first position. At this time, the rope 2 can be passed through the connecting hole 400 and the inner cavity hole 500. After passing through to the designated position, the pressing of the protrusion 501 is released, and the return spring 51 is compressed. Under the action of spring 51, the adjusting component 5 is in the second position. At this time, because the slider 50 blocks part of the inner opening of the connecting hole 400, the diameter of the inner opening of the connecting hole 400 becomes smaller. Correspondingly, the inner wall of the cavity 40 also blocks part of the inner cavity hole 500, making the diameter of the openings at both ends of the inner cavity hole 500 smaller. Consequently, the limiting ring 20 cannot detach from the rotating head 4. When the rope 2 swings, it is subjected to centrifugal force, and the limiting ring 20 is placed inside the connecting hole 400. Because the inner opening of the connecting hole 400 is blocked by the slider 50, the end wall of the limiting ring 20 can only abut against the slider 50. Specifically, the two sides of the slider 50 facing the connecting hole 400 are set as limiting walls 502. The limiting walls 502 are smooth and flat side walls, as shown in the attached figure. Figure 7 As shown, during the swinging process of the rope 2, since the limiting ring 20 is placed inside the connecting hole 400, the outer wall of the limiting ring 20 can contact the inner wall of the connecting hole 400 on the rotating head 4. This results in the limiting ring 20 having a larger contact area in addition to the contact area with the slider 50. This increases the force-bearing area between the limiting ring 20 and the rotating head 4, allowing the rotating head 4 to better drive the rope 2 to rotate during the rotation process, thus making it easier for the user to swing the rope 2.
[0049] To expand the versatility of the handle 1, this embodiment has two connection holes 400, which are symmetrically distributed on opposite sides of the cavity 40, so that the rope 2 can be used normally when assembled from either the left or right direction.
[0050] The slider 50 in this embodiment is also provided with a positioning hole 503. The positioning hole 503 is distributed on the side of the inner cavity 500 near the return spring 51, and the positioning hole 503 is connected to the inner cavity 500. The axis of the positioning hole 503 is parallel to the axis of the inner cavity 500. When the adjusting component 5 is in the second position, the positioning hole 503 is coaxially aligned with the connecting hole 400. At this time, the rope 2 is in a straight line through state, and there will be no situation where the inner cavity 500 and the connecting hole 400 intersect and cause pressure on the rope 2. Thus, the rotation of the rope 2 itself can be free from interference from the intersect of the inner cavity 500 and the connecting hole 400.
[0051] See appendix Figure 2 and attached Figure 4 The outer wall of the mounting part 30 is provided with external threads, and the bottom of the rotating head 4 is provided with a threaded hole 401 that connects to the cavity 40. The threaded hole 401 is connected to the external threads of the mounting part 30 by a threaded connection. The rotating head 4 and the adjusting component 5 can be quickly assembled onto the connector 3 by the threaded connection, and the inner diameter of the threaded hole 401 is larger than the maximum outer diameter of the slider 50, so that the slider 50 and the return spring 51 can be assembled in the cavity 40 of the rotating head 4.
[0052] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.
Claims
1. A tool-free adjustable jump rope, characterized in that, include: Handle, rope, connector, rotating head, and adjustment assembly; The system has two handles, each used to connect one end of the rope. Both ends of the rope are provided with at least two limiting rings, and the at least two limiting rings are arranged at intervals between each other; The connector is rotatably mounted on the handle, and the connector is provided with a mounting part; The rotating head is detachably connected to the mounting part; the rotating head has an internal cavity; and the rotating head has a connecting hole that connects to the cavity, the diameter of the connecting hole being larger than the outer diameter of the limiting ring; The adjusting component has an inner cavity hole and is slidably installed in the cavity of the rotating head. The adjusting component has a first position and a second position. When the adjusting component is in the first position, the inner cavity hole is coaxially aligned with the connecting hole, and the limiting retaining ring can pass through the rotating head. When the adjusting component is in the second position, the inner cavity hole is not coaxially aligned with the connecting hole, and the limiting retaining ring is blocked by the adjusting component and cannot pass through the rotating head.
2. The tool-free adjustable jump rope according to claim 1, characterized in that, The adjustment assembly includes a slider and a return spring; The inner cavity is formed on the slider; The slider is slidably mounted in the cavity, and the top of the slider has a protrusion extending out of the rotating head; the bottom of the slider is connected to the mounting part by a return spring. When the adjustment component is in the first position, the protrusion of the slider is pressed, causing the return spring to be in a compressed state, the inner cavity hole is coaxially aligned with the connecting hole, and the limiting retaining ring can pass through the connecting hole and the inner cavity hole; when the adjustment component is in the second position, the return spring pushes up the slider, the inner cavity hole is not coaxially aligned with the connecting hole, and the limiting retaining ring cannot pass through the inner cavity hole.
3. The tool-free adjustable jump rope according to claim 2, characterized in that, The cavity has two connecting holes, which are symmetrically distributed on both sides of the cavity. When the adjustment component is in the second position, the limiting ring can be placed inside the connecting hole, and the outer wall of the limiting ring can contact the inner wall of the connecting hole.
4. The tool-free adjustable jump rope according to claim 2, characterized in that, The slider is provided with limiting walls on both sides facing the connecting hole; when the adjusting component is in the second position, the side wall of the limiting ring can abut against the limiting wall.
5. The tool-free adjustable jump rope according to claim 3, characterized in that, The top of the rotating head is provided with a guide hole that connects to the cavity. The guide hole is an oblong hole. The sliding protrusion passes through the guide hole, and the protrusion is restricted by the guide hole and cannot rotate circumferentially.
6. The tool-free adjustable jump rope according to claim 2, characterized in that, The slider is also provided with positioning holes, which are distributed on the side of the inner cavity near the return spring, and the positioning holes are connected to the inner cavity. The axis of the positioning holes is parallel to the axis of the inner cavity.
7. The tool-free adjustable jump rope according to claim 2, characterized in that, The outer wall of the mounting part is provided with external threads, and the bottom of the rotating head is provided with a threaded hole that connects to the cavity. The threaded hole is connected to the external threads of the mounting part by means of a threaded connection.
8. The tool-free adjustable length jump rope according to claim 2, characterized in that, Multiple limiting clasps are used as end weights of the rope, making the ends of the rope heavier and the middle lighter.
9. The tool-free adjustable jump rope according to claim 2, characterized in that, The handle also includes a hand-held tube and a connecting tube for mounting a connector; the connector includes a rotating rod and bearings at both ends of the rotating rod, the rotating rod is mounted in the connecting tube via the bearings, and the mounting portion is located at the end of the rotating rod away from the hand-held tube.
10. The tool-free adjustable jump rope according to claim 9, characterized in that, The handle also includes a rear cover that is threaded onto the end of the handheld tube.