A skipping rope locking structure, a skipping rope handle and a skipping rope

Abstract

The present invention discloses a rope-locking structure for skipping ropes, a rope-locking handle, and a rope-locking structure, which belong to the field of sports and fitness technology. The rope-locking structure of the present invention includes a rope-locking handle, which includes a rope-locking structure, and includes a shell, a slewing support mechanism, and a rope-locking member. The slewing support mechanism includes an inner slewing support tube and an outer slewing support tube. The outer slewing support tube is inserted into the shell from the front end thereof, and is rotatably mounted in the shell through the second slewing support member, and is restricted from axially moving backward. The inner slewing support tube is inserted into the shell from the rear end thereof, and is rotatably mounted in the shell through the first slewing support member, and is restricted from axially moving forward. The inner slewing support tube and the outer slewing support tube are detachably connected, and a rope-threading channel is formed inside thereof for the rope to pass axially through. The rope-locking member is arranged in the rope-threading channel to lock the rope. The present invention sets the inner slewing support tube and the outer slewing support tube separately, and the two are detachably connected. The installation can be completed without the use of special tools, which is convenient and quick.

Description

Technical Field

[0001] The present invention relates to the technical field of sports and fitness, and more particularly to a skipping rope locking structure, a skipping rope handle and a skipping rope. Background Art

[0002] Rope skipping, a traditional sport, originated in my country during the Tang Dynasty. With its diverse and flexible gameplay, it can be used as both a solo fitness activity and a group recreational activity, making it a remarkably resilient traditional sport. With rising health awareness in the new era, fitness and strengthening are becoming increasingly important. Rope skipping, as a form of exercise that requires minimal space, offers flexible time commitment, and requires minimal financial investment, is well-suited to the current situation in my country where there is limited access to fitness equipment and space per capita, and time is fragmented.

[0003] Existing skipping ropes generally consist of a rope lock and a handle, which is telescopically inserted through a hole provided on the handle and extends into the interior of the handle. However, after the rope lock is inserted into the handle, it is easy to detach when the handle is swung, causing danger.

[0004] At the same time, existing skipping ropes generally adopt a single bearing or no bearing design. Such skipping ropes have greater resistance when rotating, and the design with one bearing easily causes instability of the skipping rope. For this reason, two bearings are generally used to maintain the stability of the skipping rope. However, when two bearings are used, the two bearings cannot be easily installed when the skipping rope handle is assembled, and additional tools need to be introduced to assemble the skipping rope handle, which brings great trouble to the production of the handle.

[0005] After searching, the Chinese patent publication number CN207871347U, the authorization publication date is September 18, 2018, and the invention is named: A self-locking device for skipping rope. The application includes an outer locking sleeve set on the skipping rope, and the outer locking sleeve is provided with a tightening sleeve. The skipping rope passes through the tightening sleeve. One end of the tightening sleeve is provided with a pressing end, and the pressing end extends to the outside of the outer locking sleeve. The other end of the tightening sleeve is provided with a plurality of tightening plates for locking the skipping rope. The outside of the tightening plate is provided with a tightening drive. The outer locking sleeve has an inclined surface, and an inner driving surface that cooperates with the tightening drive inclined surface is provided on the inner wall of the outer locking sleeve. The end of the outer locking sleeve away from the pressing end is connected to a tightening cover, and the jump rope passes through the tightening cover. A spring is provided between the tightening cover and the tightening sleeve, and one end of the spring presses on the tightening cover, and the other end presses on the tightening sleeve. In the self-locking device of this application, although the tightening sleeve can tighten the rope lock, after long-term use, the tightening sleeve is over-compressed in the outer locking sleeve and easily detaches from the handle at the other end, causing the rope lock to fall off. Summary of the Invention

[0006] 1. Technical problem to be solved by the invention

[0007] In order to solve the problems mentioned in the background technology, the present invention provides a skipping rope locking structure, a skipping rope handle and a skipping rope.

[0008] 2. Technical solution

[0009] In order to achieve the above object, the technical solution provided by the present invention is:

[0010] A rope locking structure for a skipping rope of the present invention comprises a shell and a rope locking member installed in the shell, wherein the rope locking member is installed in the shell via a rotary support mechanism; the rotary support mechanism comprises an inner rotary support cylinder and an outer rotary support cylinder;

[0011] The outer rotary support cylinder is configured to be inserted into the shell from the front end of the shell, and is rotatably mounted in the inner hole of the shell near the front end through the second rotary support member, and is restricted from axial rearward movement by the first axial limiting structure;

[0012] The inner rotary support cylinder is configured to be inserted into the shell from the rear end of the shell, and is rotatably mounted in the inner hole at the rear of the shell through the first rotary support member, and is restricted from axial forward movement by the second axial limiting structure;

[0013] The adjacent ends of the inner and outer rotary support cylinders are detachably connected, and a rope threading channel is formed inside them for the rope to pass axially; the rope locking member is arranged in the rope threading channel and is configured to lock the rope.

[0014] Furthermore, the outer rotary support tube and the inner rotary support tube are detachably connected via a snap-fit ​​structure or a threaded structure. When connected via the snap-fit ​​structure, an inner tube claw is provided on the inner periphery of the inner rotary support tube, and an outer tube claw is provided on the outer periphery of the outer rotary support tube. The inner tube claw and the outer tube claw engage with each other to fix the outer rotary support tube and the inner rotary support tube. When connected via a threaded structure, threaded structures are respectively provided on the outer rotary support tube and the inner rotary support tube, and the two are fixed after being tightened.

[0015] Furthermore, a clamping groove is provided on one side of the outer cylinder clamping claw, and when the inner cylinder clamping claw and the outer cylinder clamping claw are engaged with each other, the inner cylinder clamping claw is embedded in the clamping groove.

[0016] Furthermore, a guide surface is provided at the front end of the inner rotary support tube, and the guide surface is provided along the circumference of the inner circumference of the inner rotary support tube. When the outer rotary support tube and the inner rotary support tube are installed, the outer rotary support tube is guided into the through hole of the inner rotary support tube.

[0017] Furthermore, a plurality of expansion portions including outer cylinder claws are circumferentially provided at the rear end of the outer rotary support tube. The expansion portions can contract radially inward or expand radially outward. When the inner rotary support tube and the outer rotary support tube are installed, the inner cylinder claws squeeze the expansion portions and contract them inward into the inner rotary support tube. After the installation is completed, the expansion portions expand outward, and the inner cylinder claws and the outer cylinder claws engage with each other.

[0018] Furthermore, the first axial limiting structure includes an outer cylinder limiting platform provided on the outer periphery of the outer rotary support cylinder and a first boss provided on the inner periphery of the shell, and the second rotary support member is provided against the outer cylinder limiting platform and the first boss;

[0019] The second axial limiting structure includes an inner cylinder limiting platform arranged on the outer periphery of the inner rotary support cylinder and a second boss arranged on the inner periphery of the shell sleeve. The first rotary support member is arranged against the inner cylinder limiting platform and the second boss.

[0020] Furthermore, the shell includes a shell body and a shell end connected to the front end of the shell body, the first boss is arranged close to the shell end, and the second boss is arranged close to the shell body.

[0021] Furthermore, the rope locking member is a rope clamp, and the front end of the rope locking member is arranged to extend into the expansion portion of the outer rotary support cylinder. When the rope lock is pulled, the rope locking member squeezes the expansion portion to expand radially outward.

[0022] Furthermore, the rear end of the rope lock member is provided with a locking portion that can expand radially outward or contract inward. When the rope lock member is located in the inner rotary support cylinder, the inner rotary support cylinder squeezes the locking portion to contract inward, thereby clamping the rope lock.

[0023] Furthermore, a locking piece is provided on the inner periphery of the locking portion, the rear end of the locking piece is a plane extending in the radial direction, and the front end is connected to the locking portion through an arc surface.

[0024] The present invention also provides a skipping rope handle, comprising a skipping rope locking structure, and adopts the above-mentioned skipping rope locking structure.

[0025] The present invention also provides a skipping rope, comprising a skipping rope handle and a rope lock, wherein both ends of the rope lock fix the skipping rope handle, and the skipping rope handle is adopted.

[0026] 3. Beneficial effects

[0027] Compared with the existing known technologies, the technical solution provided by the present invention has the following beneficial effects:

[0028] (1) The present invention provides a rope-locking structure for skipping ropes, wherein the inner and outer swivel support cylinders are detachably connected and are installed in a housing through first and second swivel support structures. The housing cooperates with the limiting structures provided on the inner and outer swivel support cylinders to limit the axial movement of the first and second swivel support structures, so that a certain distance is spaced between the two swivel support structures, allowing the handle to remain stable during rope skipping. During installation, the detachably connected inner and outer swivel support cylinders are respectively installed into the housing from the front and rear ends. The installation work can be completed without special tools, making the installation convenient and quick. At the same time, the space between the swivel support components is sealed to reduce the ingress of debris and increase friction.

[0029] (2) The rope lock structure of the present invention cooperates with the rope lock member, the inner rotary support tube and the outer rotary support tube. When the rope lock member is pulled into the inner rotary support tube, the inner rotary support tube squeezes the locking portion of the rope lock member, so that the locking portion fits tightly against the rope lock and fixes the rope lock. When the rope lock is pulled, the friction force causes the rope lock member and the rope lock to move toward the inner rotary support tube together, thereby causing the rope lock member to be embedded in the outer rotary support tube, generating an extrusion force on the outer rotary support tube, so that the outer rotary support tube is tightly attached to the side wall of the inner rotary support tube. As a result, when the rope lock is pulled, the rope lock member and the rope lock are tightened, and at the same time, the connection between the outer rotary support tube and the inner rotary support tube is tightened, completing self-locking, and the rope lock will not fall off or be pulled out from the other end.

[0030] (3) The rope locking structure of the skipping rope of the present invention utilizes the inner cylinder claw of the inner rotating support cylinder and the outer cylinder claw of the outer rotating support cylinder to cooperate so that the two can be locked together. When the rope locking member squeezes the outer rotating support cylinder, the buckle structure formed by the inner cylinder claw and the outer cylinder claw is more tightly connected. The more the rope lock is pulled, the tighter the inner rotating support cylinder and the outer rotating support cylinder are combined, thereby forming a self-locking structure that becomes tighter as it is pulled, ensuring that the rope lock will not be thrown out.

[0031] (4) In the skipping rope locking structure of the present invention, the pressure-bearing portion of the outer rotating support tube is divided into multiple sections separated by gaps. When the pressure-bearing portion is squeezed by the rope locking member, the pressure-bearing portion can expand outward, thereby better forming a fixed connection between the inner and outer cylinder claws. The squeezing portion is provided with an inclined surface identical to that of the end of the rope locking member, which facilitates accurate insertion of the rope locking member into the outer rotating support tube during installation, forming a self-locating structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of the overall structure of the skipping rope of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of the rope shaft after the self-locking structure and bearing are installed in the present invention;

[0034] Figure 3 Exploded view of the rope shaft in the present invention;

[0035] Figure 4 is a cross-sectional view of the self-locking structure of the present invention;

[0036] Figure 5 A three-dimensional diagram of the rope lock member of the present invention;

[0037] Figure 6 A top view of the rope lock member of the present invention;

[0038] Figure 7 A perspective view of the inner rotary support cylinder of the present invention;

[0039] Figure 8 It is a cross-sectional view of the inner rotary support cylinder in the present invention;

[0040] Figure 9 A perspective view of the outer rotary support cylinder of the present invention;

[0041] Figure 10 It is a front view of the outer rotary support cylinder of the present invention.

[0042] Explanation of the numbers in the schematic diagram:

[0043] 100. Skipping rope; 1. Rope shaft; 11. Rope lock; 111. Locking portion; 112. Base portion; 113. Rope lock arc surface; 114. Extrusion portion; 115. Locking portion;

[0044] 12. Inner rotary support cylinder; 121. Inner cylinder end platform; 122. Sealing element; 123. Inner cylinder body; 124. Inner cylinder claw; 125. Guide surface; 126. Inner cylinder limit platform;

[0045] 13. First rotary support member; 14. Second rotary support member;

[0046] 15. Outer rotary support cylinder; 151. Pressure-bearing portion; 152. Outer cylinder claw; 153. Outer cylinder body; 154. Outer cylinder limit platform; 155. Outer cylinder end plate; 156. Slot slope; 157. Slot;

[0047] 16. Shell; 161. Shell end; 162. First boss; 163. Second boss; 164. Thread;

[0048] 17. Rope threading channel;

[0049] 2. Handle; 21. Anti-slip groove; 3. Hand guard; 31. Signature window; 4. Cord lock hole. DETAILED DESCRIPTION

[0050] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.

[0051] The following detailed description of exemplary embodiments of the present invention refers to the accompanying drawings, which form a part of the description, in which exemplary embodiments of the present invention are shown as examples, wherein the elements and features of the present invention are identified by reference numerals. The following more detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but is merely for illustration and does not limit the description of the features and characteristics of the present invention, so as to propose the best way to perform the present invention and to enable those skilled in the art to implement the present invention. However, it should be understood that various modifications and variations can be made without departing from the scope of the present invention as defined by the appended claims. The detailed description and drawings should be considered only as illustrative, not restrictive, and if any such modifications and variations exist, they will fall within the scope of the invention described herein. In addition, the background technology is intended to illustrate the current status and significance of the research and development of the present technology and is not intended to limit the present invention or the application field of the present invention or the present application.

[0052] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to another element or there may be a central element at the same time; the "back, front, top, bottom, left, right, side, and top" of a certain structure described in the present invention are all relative positions, and are not limited to a certain structure that can only be used as the "back, front, top, bottom, left, right, side, and top" positions.

[0053] The expressions "one, two sides" and similar expressions in this embodiment are for illustrative purposes only and are not intended to limit the number of configurations of a certain structure.

[0054] “Optionally” in the present invention means that based on the aforementioned technical features, the technical feature after “optionally” may be present or not, belonging to two parallel technical solutions; when the technical feature is present, a certain technical effect is produced; when the technical feature is not present, another technical effect is produced.

[0055] Example

[0056] Combine Figures 1-10 The present embodiment provides a skipping rope, which includes a rope lock (not shown in the figure), with a rope skipping handle 2 fixedly connected to each end of the rope lock. The rope lock can rotate around the handle 2. When in use, the user holds a handle 2 in each hand and quickly swings the rope lock to exercise with the skipping rope 100.

[0057] Further, see Figure 1This embodiment provides a skipping rope handle, comprising a rope shaft 1 for securing a rope lock, a grip connected to the rope shaft 1, and a hand guard 3 disposed on the grip. The hand guard 3 and the rope shaft 1 are respectively connected to both ends of the grip. In this embodiment, the grip is provided with anti-slip grooves 21 to prevent the handle 2 from falling due to sweating in the user's palms while using the skipping rope. The anti-slip grooves 21 can be wavy, annular, or other shapes that increase friction. In this embodiment, a plurality of annular grooves are formed on the outer circumference of the handle 2. The multiple annular grooves are arranged at regular intervals to maximize the friction between the palm and the handle 2, thereby improving the user's grip on the handle 2.

[0058] Furthermore, a hand guard 3 is provided at one end of the handle 2, integrally formed with the handle 2. In this embodiment, the hand guard 3 is provided at the end of the anti-slip groove 21, and its diameter is larger than that of the handle 2. A signature window 31, in which the user's name can be printed, is provided, making it easier for the user to identify their jump rope. The rope shaft 1 is threadedly connected to the other end of the handle 2. In this embodiment, the rope shaft 1, handle 2, and hand guard 3 all have a rope lock hole 4, which extends through the rope shaft 1, handle 2, and hand guard 3.

[0059] Furthermore, this embodiment also provides a rope-locking structure for skipping ropes. Because existing skipping rope handles utilize two pivoting structures to maintain stability, the two pivoting structures must be inserted from the same end onto the inner pivoting support tube 12. To prevent the pivoting structures from falling off, a retaining structure must be provided at the front end of the inner pivoting support tube 12. However, providing a retaining structure makes installation of the housing 16 difficult, requiring the use of special tools to reach into the housing 16 to install the retaining structure. This increases production time and is detrimental to production. Furthermore, existing handles utilizing two pivoting structures require internal lubrication, resulting in insufficient sealing at both ends, making it easy for debris to enter, increasing friction and hindering user usability.

[0060] The rope lock structure of the present embodiment includes a shell 16 and a rope lock member 11 installed in the shell 16. The rope lock member 11 is installed in the shell 16 through a rotary support mechanism; the rotary support mechanism includes an inner rotary support cylinder 12 and an outer rotary support cylinder 15; the outer rotary support cylinder 15 is configured to be inserted into the shell 16 from the front end of the shell 16, and is rotatably installed in the inner hole of the shell 16 near the front end through the second rotary support member 14, and its axis is limited by the first axial limit structure. The inner swivel support tube 12 is configured to be inserted into the shell 16 from the rear end thereof and rotatably mounted in the rear inner hole of the shell 16 via the first swivel support member 13, and its axial forward movement is restricted by the second axial limiting structure. The adjacent ends of the inner swivel support tube 12 and the outer swivel support tube 15 are detachably connected, and a rope passage 17 is formed therein for the axial passage of the rope. The rope locking member 11 is disposed in the rope passage 17 and is configured to lock the rope. The swivel support mechanism can be any structure capable of rotating and supporting the rope locking member 11, including but not limited to a ball bearing, a bearing, etc. In this embodiment, a bearing is preferably used. The first swivel support member 13 and the second swivel support member 14 are respectively sleeved on the inner swivel support tube 12 and the outer swivel support tube 15. In this embodiment, through-holes are provided in the inner and outer pivoting support tubes 12 and 15, forming a rope passage 17. The rope lock passes through passage 17, and the rope locking member 11 is inserted into passage 17 to lock the rope. The rope locking member 11 can be detached from the outer pivoting support tube 15, or positioned within the outer pivoting support tube 15, or half positioned within the outer pivoting support tube 15 and the other half detached from the outer pivoting support tube 15. In this embodiment, the end of the rope locking member 11 is positioned within the outer pivoting support tube 15, squeezing the end of the outer pivoting support tube 15 radially outward.

[0061] See Figure 2-Figure 4 In this embodiment, the outer rotary support tube 15 and the inner rotary support tube 12 are fastened together by a snap-fit ​​structure or a threaded structure or any other method that can fasten the two together. In this embodiment, a snap-fit ​​structure is preferably used to fix the two together. Specifically, an inner tube claw 124 is provided on the inner periphery of the inner rotary support tube 12, and an outer tube claw 152 is provided on the outer periphery of the outer rotary support tube 15. The inner tube claw 124 and the outer tube claw 152 engage with each other to fix the outer rotary support tube 15 to the inner rotary support tube 12.

[0062] The inner cylinder claw 124 is positioned near the front end of the inner cylinder body 123 of the inner rotary support cylinder 12. A flat surface protrudes radially inward, located on the rear side of the inner cylinder claw 124. A surface, representing a guide surface 125, extends from the edge of this protrusion toward the front end of the inner rotary support cylinder 12. The guide surface 125 is circumferentially disposed along the inner circumference of the inner rotary support cylinder 12. When the outer rotary support cylinder 15 is assembled with the inner rotary support cylinder 12, it guides the outer rotary support cylinder 15 into the through-hole of the inner rotary support cylinder 12. The guide surface 125 can be flat or curved, as long as it can perform the guiding function. In this embodiment, it is preferably flat, with a 45-degree inclination angle, to facilitate guidance of the outer rotary support cylinder 15. The outer cylinder claw 152 is positioned near the rear end of the outer rotary support tube 15 and features a flat surface projecting radially outward. This surface is located on the front side of the outer cylinder claw 152. When the inner cylinder claw 124 engages with the outer cylinder claw 152, the outwardly projecting surfaces of the two closely align, allowing the inner cylinder claw 124 and outer cylinder claw 152 to hang together, forming a snap-fit ​​structure. A slot 157 is provided on one side of the outer cylinder claw 152. When the inner cylinder claw 124 and outer cylinder claw 152 engage, the inner cylinder claw 124 fits into the slot 157, which then transitions to the outer cylinder body 153 via an inclined slot surface 156. This snap-fit ​​structure facilitates quick installation of the inner and outer rotary support tubes 12 and 15 by simply pressing the outer rotary support tube 15 into the inner rotary support tube 12.

[0063] See Figure 7-10 In this embodiment, the first axial limiting structure comprises an outer cylinder limiting platform 154 disposed on the outer circumference of the outer rotary support tube 15 and a first boss 162 disposed on the inner circumference of the housing 16. The second rotary support member 14 abuts the outer cylinder limiting platform 154 and the first boss 162. The second axial limiting structure comprises an inner cylinder limiting platform 126 disposed on the outer circumference of the inner rotary support tube 12 and a second boss 163 disposed on the inner circumference of the housing 16. The first rotary support member 13 abuts the inner cylinder limiting platform 126 and the second boss 163. The first axial limiting structure limits axial movement of the second rotary support member 14, while the second axial limiting structure limits axial movement of the first rotary support member 13. Furthermore, a seal 122 is provided at the rear end of the inner rotary support tube 12 to seal the space between the two bearings. An inner cylinder end platform 121 is also provided at the rear end of the inner rotary support tube 12 to accommodate the rope lock member 11.

[0064] In this embodiment, the rear end of the outer rotary support tube 15 is circumferentially provided with multiple expansion sections, including outer cylinder claws 152. These expansion sections can radially contract inward or expand outward. During installation of the inner and outer rotary support tubes 12 and 15, the inner cylinder claws 124 squeeze the expansion sections, forcing them to contract inward and into the inner rotary support tube 12. After installation, the expansion sections expand outward, engaging the inner cylinder claws 124 and outer cylinder claws 152. In this embodiment, the four expansion sections of the outer rotary support tube 15 are connected to the outer cylinder body 153. The four expansion sections can be telescopically spaced or separated to form gaps. In this embodiment, a structure with separate gaps is preferred to conserve material. A thin-walled pressure-receiving portion 151 is provided at the top end of the outer cylinder claw 152 (i.e., the inner diameter of the pressure-receiving portion 151 is larger than the inner diameter of the outer cylinder claw 152, and the outer diameter of the pressure-receiving portion 151 is smaller than the outer diameter of the outer cylinder claw 152). The outer peripheral surface of the pressure-receiving portion 151 has an inclined surface extending toward the top end of the pressure-receiving portion 151, which cooperates with the guide surface 125 to guide the outer rotary support cylinder 15 into the through-hole of the inner rotary support cylinder 12, thereby facilitating installation.

[0065] The outer rotary support tube 15 described in this embodiment is further provided with an outwardly protruding outer tube limit platform 154 and an outer tube end plate 155 provided on the front end surface of the outer rotary support tube 15. The outer tube limit platform 154 is provided closely to the outer tube end plate 155 to limit the position of the second rotary support member 14. After installation, the outer tube end plate 155 can form a dustproof and sealing structure with the shell 16 to prevent external dust from entering the bearing structure.

[0066] In this embodiment, the inner and outer rotary support cylinders 12 and 15, along with the bearings mounted thereon, are mounted together within a housing 16. The housing 16 comprises a housing body and a housing end 161 connected to the front end of the housing body. The blocking member is disposed between the housing body and the housing end 161. In this embodiment, the blocking member comprises a first boss 162 and a second boss 163. The housing end 161 protrudes radially inward relative to the housing body, while the first boss 162 protrudes radially inward relative to the housing end 161. The first boss 162 and the outer cylinder stop 154 ​​secure the axial position of the second rotary support member 14. The second boss 163 protrudes radially inward relative to the housing body, but by a smaller distance than the housing end 161. The second boss 163 and the inner cylinder stop 126 secure the axial position of the first rotary support member 13. The other end of the housing body is connected to a threaded connection 164.

[0067] See Figure 5 and Figure 6In this embodiment, the rope lock member 11 can be of any structure as long as it can fix the rope lock. Preferably, the rope lock member 11 is a four-claw rope clamp, and the rear end of the rope lock member 11 is provided with a locking portion 111 that can expand radially outward or contract inward. When the rope lock member 11 is located in the inner rotating support cylinder 12, the inner rotating support cylinder 12 squeezes the locking portion 111 inward to tighten the rope lock. Specifically, the rope lock member 11 is composed of multiple parts, according to Figure 5 In the state shown, from top to bottom, there are respectively a locking portion 111, a base portion 112 and an extrusion portion 114, wherein a transitional lock rope arc surface 113 is provided between the locking portion 111 and the base portion 112. Specifically, the locking portion 111 is composed of a plurality of expansion joints that expand radially outward, with gaps between each expansion joint to facilitate the expansion of the expansion joint outward or contraction inward. In this embodiment, a total of 4 expansion joints are provided, according to Figure 5 In the illustrated state, the upper end of the circle formed by the four expansion joints has the same diameter as the base portion 112 in its natural state. The diameter gradually increases and then decreases downward, ultimately connecting to the base portion 112 via the curved surface 113 of the rope lock member. The base portion 112 has the same diameter as the inner diameter of the through hole in the inner swivel support tube 12. During use, the rope lock member 11 is inserted into the inner swivel support tube 12. Because the central diameter of the circle formed by the four expansion joints is larger than the inner diameter of the inner swivel support tube 12, it is squeezed toward the center of the circle. The rope lock passes between the four expansion joints. When squeezed, the expansion joints cling tightly to the rope lock, securing it securely. Furthermore, to further secure the rope lock, a pointed locking member 115 is provided on the inner circumference of each expansion joint. The rear end of the locking member 115 is a radially extending flat surface, while the front end is connected to the locking portion 111 via a curved surface. When the expansion joint is squeezed onto the rope lock, the locking member 115 will be stuck into the rope lock, firmly locking the rope lock and the rope lock member 11. In order to better lock the rope lock, the preferred rope lock material of this embodiment is nylon rope.

[0068] In the rope lock member 11, an extrusion portion 114 is provided below the base portion 112. This extrusion portion 114 has a smaller diameter than the base portion 112. When the rope lock member 11 and the outer pivot support cylinder 15 are both installed in the inner pivot support cylinder 12, the extrusion portion 114 engages with the pressure-receiving portion 151 of the outer pivot support cylinder 15. When the rope lock is pulled, the extrusion portion 114 compresses the pressure-receiving portion 151, causing the expansion portion to expand radially outward, ensuring a tighter fit and preventing loosening.

[0069] In the rope locking structure of this embodiment, after the rope locking member 11 is inserted from the rear end, the extruding portion 114 is embedded in the pressure-receiving portion 151 under the guidance of the inclined surface of the pressure-receiving portion 151. When the rope lock is pulled, the locking portion 111 is squeezed, resulting in the rope lock being unable to be pulled, and at the same time driving the rope locking member 11 to move toward the outward rotating support cylinder 15, thereby causing the pressure-receiving portion 151 to be squeezed and expanded outward, so that the inner cylinder claw 124 and the outer cylinder claw 152 fit more tightly, so that the rope locking member 11, the outer rotating support cylinder 15 and the inner rotating support cylinder 12 form an interference fit, ensuring that the three form a whole. At the same time, because the locking member 115 is stuck in the rope lock, the four form a whole, ensuring that the rope lock will not fall off during the swinging process, but will be pulled tighter and tighter.

[0070] During installation of this embodiment, the rope lock member 11 is first inserted into the inner rotary support tube 12 from the rear end, and then the first rotary support member 13 is placed on the inner rotary support tube 12. Then, the shell 16 is placed on the inner rotary support tube 12 to fix the first rotary support member 13. Then, the second rotary support member 14 is placed on the outer rotary support tube 15, and the outer rotary support tube 15 is pressed into the inner rotary support tube 12 from the front end to engage. Finally, the shell is fixed to the handle 2 using the thread 164. Installation can be completed quickly and conveniently without the use of special tools.

[0071] More specifically, although exemplary embodiments of the present invention have been described herein, the present invention is not limited to these embodiments, but rather includes any and all embodiments that may be recognized by those skilled in the art based on the foregoing detailed description, such as combinations between the various embodiments, adaptations, and / or substitutions. The limitations in the claims are to be interpreted broadly based on the language used in the claims and are not limited to the examples described in the foregoing detailed description or during the prosecution of this application, which examples should be considered non-exclusive. Any steps recited in any method or process claim may be performed in any order and are not limited to the order set forth in the claims. Therefore, the scope of the invention should be determined solely by the appended claims and their legal equivalents, rather than by the description and examples given above.

Claims

1. A rope-locking structure for a skipping rope, comprising a shell (16) and a rope-locking member (11) installed in the shell (16), characterized in that: The rope lock member (11) is installed in the housing (16) via a rotary support mechanism; the rotary support mechanism comprises an inner rotary support cylinder (12) and an outer rotary support cylinder (15); The outer rotary support cylinder (15) is configured to be inserted into the shell (16) from the front end of the shell (16), and is rotatably mounted in the inner hole of the shell (16) near the front end through the second rotary support member (14), and is restricted from axial rearward movement by the first axial limiting structure; The inner rotary support cylinder (12) is configured to be inserted into the shell (16) from the rear end of the shell (16), and is rotatably mounted in the inner hole of the shell (16) at the rear through the first rotary support member (13), and is restricted from axial forward movement by the second axial limiting structure; The adjacent ends of the inner rotary support cylinder (12) and the outer rotary support cylinder (15) are detachably connected, and a rope threading channel (17) is formed inside the inner rotary support cylinder for allowing the rope to pass axially; the rope locking member (11) is arranged in the rope threading channel (17) and is configured to lock the rope.

2. A skipping rope locking structure according to claim 1, characterized in that: The outer rotary support tube (15) and the inner rotary support tube (12) are connected by a snap-fit ​​structure. An inner cylinder claw (124) is provided on the inner periphery of the inner rotary support tube (12), and an outer cylinder claw (152) is provided on the outer periphery of the outer rotary support tube (15). The inner cylinder claw (124) and the outer cylinder claw (152) are engaged with each other to fix the outer rotary support tube (15) and the inner rotary support tube (12). When connected by a threaded structure, the outer rotary support tube (15) and the inner rotary support tube (12) are respectively provided with threaded structures, and the two are fixed after being tightened. Alternatively, the outer rotary support cylinder (15) and the inner rotary support cylinder (12) are detachably connected via a threaded structure.

3. A rope-locking structure for skipping rope according to claim 2, characterized in that: A clamping groove (157) is provided on one side of the outer cylinder clamping claw (152). When the inner cylinder clamping claw (124) and the outer cylinder clamping claw (152) are engaged with each other, the inner cylinder clamping claw (124) is embedded in the clamping groove (157).

4. A rope-locking structure for skipping rope according to claim 3, characterized in that: A guide surface (125) is provided at the front end of the inner rotary support tube (12). The guide surface (125) is provided along the circumference of the inner circumference of the inner rotary support tube (12). When the outer rotary support tube (15) and the inner rotary support tube (12) are installed, the outer rotary support tube (15) is guided into the through hole of the inner rotary support tube (12).

5. A rope-locking structure for skipping rope according to claim 4, characterized in that: The rear end of the outer rotary support tube (15) is circumferentially provided with a plurality of expansion portions including outer tube claws (152). The expansion portions can contract radially inward or expand radially outward. When the inner rotary support tube (12) and the outer rotary support tube (15) are installed, the inner tube claws (124) squeeze the expansion portions and contract them inward to enter the inner rotary support tube (12). After the installation is completed, the expansion portions expand outward, and the inner tube claws (124) and the outer tube claws (152) engage with each other.

6. The rope locking structure for skipping rope according to claim 1, characterized in that: The first axial limiting structure comprises an outer cylinder limiting platform (154) arranged on the outer periphery of the outer rotary support cylinder (15) and a first boss (162) arranged on the inner periphery of the shell (16); the second rotary support member (14) is arranged against the outer cylinder limiting platform (154) and the first boss (162); The second axial limiting structure comprises an inner cylinder limiting platform (126) arranged on the outer periphery of the inner rotary support cylinder (12) and a second boss (163) arranged on the inner periphery of the shell (16), and the first rotary support member (13) is arranged to abut against the inner cylinder limiting platform (126) and the second boss (163).

7. A rope-locking structure for skipping rope according to claim 6, characterized in that: The shell (16) comprises a shell body and a shell end (161) connected to the front end of the shell body, the first boss (162) is arranged close to the shell end (161), and the second boss (163) is arranged close to the shell body.

8. The rope locking structure for skipping rope according to claim 5, characterized in that: The rope lock member (11) is a rope clamp, and the front end of the rope lock member (11) is arranged to extend into the expansion portion of the outer rotary support cylinder (15). When the rope lock is pulled, the rope lock member (11) squeezes the expansion portion to expand radially outward.

9. The rope locking structure for skipping rope according to claim 8, characterized in that: The rear end of the rope lock member (11) is provided with a locking portion (111) that can expand radially outward or contract radially inward. When the rope lock member (11) is located in the inner rotary support cylinder (12), the inner rotary support cylinder (12) squeezes the locking portion (111) to contract inward, thereby clamping the rope lock.

10. A rope-locking structure for skipping rope according to claim 9, characterized in that: A locking piece (115) is provided on the inner periphery of the locking portion (111); the rear end of the locking piece (115) is a plane extending in the radial direction, and the front end is connected to the locking portion (111) via an arc surface.

11. A skipping rope handle, comprising a skipping rope locking structure, characterized in that: A skipping rope locking structure as described in any one of claims 1 to 10 is adopted.

12. A skipping rope comprising a skipping rope handle and a rope lock, wherein the rope lock fixes the skipping rope handle at both ends, wherein: Use the skipping rope handle as described in claim 11.

Images