Skipping rope handle and skipping rope

Abstract

The present invention relates to a skipping rope handle and a skipping rope, and belongs to the technical field of fitness equipment. The skipping rope handle includes an outer shell, an inner cylinder inserted from the rear end of the inner cavity of the outer shell, and a rotary support body arranged between the inner cylinder and the outer shell. It also includes a first axial limiting structure and a second axial limiting structure arranged between the inner cavity and the inner cylinder, wherein the second axial limiting structure can be subjected to radial pressure during the process of inserting the inner cylinder into the inner cavity of the outer shell and produce elastic avoidance, so that the inner cylinder can be installed in place and self-locked. The skipping rope handle in the present invention can quickly position the inner sleeve and self-lock it in the outer shell. While ensuring that the inner sleeve is accurately positioned and firmly installed, it greatly increases the convenience of installing the inner sleeve in the outer shell and reduces the complexity of the overall structure of the handle.

Description

Technical Field

[0001] The present invention relates to the technical field of fitness equipment, in particular to a skipping rope handle and a skipping rope. Background Art

[0002] Rope skipping is a traditional physical exercise that plays an important role in people's daily exercise. Rope skipping has gradually evolved from an ordinary physical exercise to a variety of jumping methods, and has even developed into a high-intensity competitive event.

[0003] A typical jump rope typically connects two handles via a length of rope. The rope and handles are typically connected by setting a connection point on each handle, tying the rope to the connection point, and then squeezing it to form a fixed point, thereby securing the rope end and maintaining the rope within an appropriate length range. When exercising with this type of typical jump rope, the user uses wrist force to swing the rope into an arc. During this process, the rope end is connected to the handles via a single connection point, resulting in an unstable connection between the two, which can easily cause the rope end to wobble, thereby affecting the rope's arc trajectory.

[0004] In response to the above problems, a patent with publication number CN215609047U was searched and discovered, which discloses a ropeless skipping rope shaft structure. By setting the shaft and bearings at both ends of the shaft, the length of the transmission load during the rotation of the retaining ring is increased, thereby providing more stable support for the rotation of the counterweight structure, making the rotation smoother and reducing the amount of shaking. However, this patent also has some problems. It divides the shell into an upper shell and a lower shell that can be installed together. The upper shell and the lower shell each have half of an upper positioning block and a lower positioning block. In the process of installing the rotating shaft core in the shell, the limiting sleeve and the rotating shaft fixing sleeve are first limited by the first positioning block and the second positioning block in the lower shell, and then the position of the rotating shaft core is restricted by the limiting sleeve and the rotating shaft fixing sleeve. Finally, the rotating shaft core is fixed by assembling the upper and lower shells. This method undoubtedly complicates the assembly process of the rotating shaft core and the shell, reduces the assembly efficiency, and many assembly structures will increase the weight of the handle, which is not conducive to user use; in addition, it fixes the rotating shaft core by assembling the upper and lower shells. During the high-speed rotation of the rotating shaft core, the shaking caused by it can easily cause loosening between the upper and lower shells, resulting in insufficient rotational stability of the rotating shaft core. Summary of the Invention

[0005] 1. Problems to be solved

[0006] In response to the problem in the prior art that the assembly between the inner cylinder and the outer shell is relatively complicated, the present invention provides a skipping rope handle that can quickly position the inner sleeve and self-lock it in the outer shell. While ensuring that the inner sleeve is accurately positioned and firmly installed, it greatly increases the convenience of installing the inner sleeve in the outer shell and reduces the complexity of the overall structure of the handle.

[0007] The present invention also provides a skipping rope, which uses a skipping rope handle to connect the skipping rope, so as to achieve a stable skipping process.

[0008] 2. Technical solution

[0009] To solve the above problems, the present invention adopts the following technical solutions.

[0010] A skipping rope handle comprises an outer shell and an inner cylinder, wherein the inner cylinder is rotatably mounted in the outer shell via a swivel support, the outer shell having an inner cavity extending axially from front to back and configured to allow the inner cylinder to be inserted into the inner cavity of the outer shell from an insertion port at a rear end of the inner cavity;

[0011] A first axial limiting structure and a second axial limiting structure are provided between the inner cavity of the outer shell and the inner cylinder; the first axial limiting structure is configured to limit the movement of the inner cylinder toward the front of the outer shell in the axial direction after the inner cylinder is installed in place; the second axial limiting structure is configured to allow the second axial limiting structure to elastically yield when subjected to radial pressure during the process of the inner cylinder being inserted into the inner cavity of the outer shell, so that the inner cylinder can be installed in place and limit the movement of the inner cylinder toward the rear of the outer shell in the axial direction;

[0012] A rope installation portion is provided in the inner cylinder, and the end of the rope configured as a skipping rope can pass through the front end of the inner cavity of the outer shell and be installed in the rope installation portion of the inner cylinder.

[0013] Preferably, the rotary support is sleeved on the outer wall of the inner cylinder;

[0014] The inner cavity of the outer shell is provided with a front clamping wall, which can cooperate with the axial front side surface of the slewing support member, forming a part of the first axial limiting structure; the inner cavity of the outer shell is provided with an elastic rear clamping wall, which is configured to allow the slewing support member to radially squeeze the elastic rear clamping wall during the insertion of the inner cylinder into the inner cavity of the outer shell, and to position itself after axially passing through the elastic rear clamping wall, forming a part of the second axial limiting structure.

[0015] Preferably, a clamping groove of the axially limiting rotary support is formed between the front clamping wall and the elastic rear clamping wall on the inner cavity wall of the outer shell.

[0016] Preferably, the elastic rear clamping wall includes at least one triangular protrusion circumferentially arranged along the inner cavity wall of the outer shell; the triangular protrusion includes a guide inclined surface with a higher front end and a lower rear end, which is used to guide the rotary support to move axially to a preset position, and also includes a radial surface that limits the inner cylinder from moving axially toward the rear of the outer shell.

[0017] Preferably, hollow grooves communicating with the inner cavity are provided on both sides of the triangular protrusion on the outer shell, so that the triangular protrusion can elastically avoid radial pressure.

[0018] Preferably, at least one swivel support position for inserting the swivel support member is provided on the outer wall of the inner cylinder; in the axial direction along which the inner cylinder is inserted into the outer cylinder, a first axial limiting portion and a second axial limiting portion are respectively provided on both sides of the swivel support position; the first axial limiting portion is configured to radially contract due to the extrusion force of the swivel support member when the swivel support member is inserted from the front end of the inner cylinder and axially moved into the swivel support position, so as to limit the axial forward movement of the swivel support member after the swivel support member passes through; the second axial limiting portion is configured to limit the axial backward movement of the swivel support member.

[0019] Preferably, the first axial limiting portion is at least one elastic protrusion arranged along the circumference of the outer wall of the inner cylinder. The elastic protrusion is located in a groove opened on the outer wall of the inner cylinder, and its root is elastically connected to the groove wall.

[0020] Preferably, the rotary support member is a bearing, and there are two of them; the two bearings are both sleeved on the inner cylinder from the front end of the inner cylinder and are spaced a distance apart.

[0021] Preferably, the inner cylinder is provided with an axial stepped surface for limiting the axial backward movement of the bearing on the front side, and the inner cavity wall of the outer shell is provided with a blocking surface for limiting the axial forward movement of the bearing on the front side.

[0022] Preferably, the inner cylinder is provided with a cavity along its axial direction for inserting a skipping rope.

[0023] Preferably, the front end of the outer shell is a straight cylinder, and the rear end is a cylinder with a diameter gradually increasing in the front-to-back direction.

[0024] Preferably, both ends of the outer shell are provided with limiting parts protruding along the outer circumference thereof, and the limiting parts at both ends are limitedly sleeved on the gripping sleeve on the outer wall of the outer shell.

[0025] A skipping rope comprises a handle and a rope body. The handle adopts the above-mentioned skipping rope handle, and one end of the rope body is installed in the installation part of the inner cylinder.

[0026] Preferably, the inner cylinder is provided with a cavity along its axial direction, and an axial limiting assembly through which the rope body passes is inserted into the rear end of the cavity. When the axial limiting assembly is inserted into the cavity, the portion of the axial limiting structure that clamps the rope body is subjected to radial pressure from the inner wall of the cavity and contracts radially, thereby limiting the movement of the rope body toward the front end of the cavity.

[0027] Preferably, the inner cylinder cavity is provided with a blocking portion for limiting the forward movement of the axial limiting assembly;

[0028] The axial limiting structure includes a rope clamp sleeve inserted into the cavity and blocked by the blocking part, and the rope clamp sleeve rotates together with the inner cylinder; a cylindrical rope clamp passed through the rope body is inserted into the rope clamp sleeve, and the outer wall of the rope clamp is provided with at least one elastic claw in contact with the cavity wall and the rope body, and the elastic claw is located in a groove opened on the outer wall of the rope clamp, and its root is elastically connected to the groove wall; the rear end of the rope clamp is provided with a limiting wall to prevent it from moving axially forward in the rope clamp sleeve.

[0029] 3. Beneficial effects

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] (1) The present invention provides a skipping rope handle, in which a first axial limiting structure and a second axial limiting structure are arranged between the outer shell and the inner cylinder. The elastic deformation of the second axial limiting structure enables the inner cylinder to be quickly positioned and self-locked, thereby realizing quick installation and matching between the inner cylinder and the outer shell, greatly simplifying the assembly process, and improving the connection stability between the outer shell and the inner cylinder structure.

[0032] (2) The present invention provides a skipping rope handle, in which the elastic rear clamping wall and the front clamping wall are arranged in the inner cavity of the outer shell. Through a simple structure, the inner cylinder can be self-positioned and self-locked in the inner cavity of the outer shell, which greatly simplifies the overall assembly structure and reduces the overall weight. In addition, the clamping groove structure formed between the elastic rear clamping wall and the front clamping wall can improve the stability of self-locking.

[0033] (3) The present invention provides a rope skipping handle, which guides the rotating support member through the guiding bevel provided on the triangular protrusion, and limits the position of the rotating support member through the radial surface, so that the inner cylinder can be stably sent to the positioning and locking position. The radial surface cooperates with the front card wall of the inner cavity of the outer shell to form a card groove for locking the rotating support member, which can conveniently lock the inner cylinder. The hollow groove provided around the triangular protrusion can help the triangular protrusion to perform appropriate elastic deformation, which can better lock the inner cylinder at the positioning position.

[0034] (4) The present invention provides a rope skipping handle, which can axially clamp the bearing by cooperating with the stepped surface on the shaft provided on the inner cylinder body and the blocking surface on the outer cylinder body. In combination with the self-locking structure formed by the front clamping wall and the elastic rear clamping wall, double locking can be achieved. When the processing accuracy is high, the inner cylinder body can be synchronously axially locked by the two locking structures, which can improve the stability of the inner cylinder body during rotation. In addition, when the self-locking structure formed by the front clamping wall and the elastic rear clamping wall fails due to wear and other reasons, the inner cylinder body can still be locked by the stepped surface on the shaft and the blocking surface to form a double insurance.

[0035] (5) The skipping rope handle provided by the present invention can position and install the swivel support member at a preset position of the inner cylinder by a simple assembly method by arranging a first axial limiting portion and a second axial limiting portion on the inner cylinder, thereby completing the self-locking of the swivel support member on the inner cylinder, greatly simplifying the complexity of the assembly process, and improving the stability of the inner cylinder when rotating in the outer cylinder.

[0036] (6) The skipping rope handle provided by the present invention can ensure that the rotating support body can enter the rotating support position by arranging an elastic protrusion on the outer wall of the inner cylinder to form a first axial limit portion, thereby ensuring that the rotating support member can be accurately positioned and locked in a preset position, and cooperate with the outer shell to form a locking position for the inner cylinder body.

[0037] (7) The skipping rope handle provided by the present invention can facilitate the skipping rope to pass through by providing a cavity in the inner cylinder, thereby improving the connection stability, and a grip sleeve is provided on the outer wall of the outer shell, which is beneficial for the user to hold the handle. The handle is configured into a straight cylindrical shape with a smaller diameter and a cylindrical shape with a gradually increasing diameter, which can help the user to better hold the handle and find the point of force, thereby facilitating better grip and exertion of force.

[0038] (8) The present invention provides a skipping rope, which uses two self-locking handles to connect the rope body, wherein the rope body can pass through the cavity opened in the inner cylinder and is connected and fixed by the axial limiting assembly at the rear end of the cavity, so that the rope body can be fixed on the handle more stably. The elastic claws constituting the clamping structure of the axial limiting assembly can continuously clamp the rope body by squeezing the radial pressure, thereby ensuring that the rope body will not fall off and ensuring the stable movement of the rope body during the skipping rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a structural diagram of the skipping rope handle of the present invention;

[0040] Figure 2 is a cross-sectional view of the skipping rope handle of the present invention;

[0041] Figure 3 A three-dimensional diagram of the handle of the skipping rope of the present invention;

[0042] Figure 4 This is a front view of the outer shell of the present invention;

[0043] Figure 5 is a cross-sectional view of the outer shell of the present invention;

[0044] Figure 6 It is a structural diagram of the inner cylinder in the present invention;

[0045] Figure 7 This is the assembly diagram (1) of the inner cylinder and the rotary support member in the present invention;

[0046] Figure 8 This is the assembly drawing (2) of the inner cylinder and the rotary support member in the present invention;

[0047] Figure 9 This is a structural diagram of the grip sleeve of the present invention;

[0048] Figure 10 This is a structural diagram of the axial limiting assembly in the present invention.

[0049] In the picture:

[0050] 1. Outer shell; 2. Inner cylinder; 3. Rotary support;

[0051] 4. Inner cavity; 401. Insertion port; 5. Front card wall;

[0052] 6. Elastic rear clamping wall; 601. Triangular protrusion; 602. Guide slope; 603. Radial surface;

[0053] 7. Hollow groove; 8. Elastic protrusion;

[0054] 9. Stepped surface on the shaft; 10. Blocking surface;

[0055] 11. Cavity; 12. Limiting portion; 13. Grip;

[0056] 14. Axial limit assembly; 1401. Rope clamp sleeve;

[0057] 1402, rope clamp; 14021, limit wall; 14022, elastic claw;

[0058] 15. Blocking part. DETAILED DESCRIPTION

[0059] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with embodiments.

[0060] Traditional skipping ropes generally connect the rope body to the handle through a connection point. When the user holds the handle and swings it quickly, this connection method is not stable enough and easily causes the end of the rope to shake, thereby affecting the rope's arc-shaped movement. In response to this, the prior art increases the length of the transmission load during the rotation of the retaining ring by setting a rotating shaft and bearings at both ends of the rotating shaft, thereby providing more stable support for the rotation of the counterweight structure, making the rotation more stable and reducing the amount of shaking. However, when installing the rotating shaft and the bearing, the prior art is to divide the shell into two parts, first locate and install the rotating shaft in one part of the shell, and then assemble the two parts of the shell together to fix the rotating shaft. This assembly method is undoubtedly more complicated and has low assembly efficiency. In addition, during the high-speed rotation of the rotating shaft, the shaking caused by it easily causes a gap to form between the two assembled parts of the shell, thereby affecting the stability of the rotating shaft. In response to the above problems, the present invention makes the following improvements:

[0061] Example 1

[0062] like Figure 1 and Figure 2 As shown, a skipping rope handle is mainly composed of an outer shell 1, an inner cylinder 2 inserted into the outer shell 1, and a rotary support 3 arranged in the outer shell 1 for supporting the inner cylinder 2 to rotate.

[0063] The outer shell 1 has an inner cavity 4 extending axially through the front and back. The rear end of the inner cavity 4 has an insertion port 401 . The inner cylinder 2 is inserted into the outer shell 1 through the insertion port 401 into the inner cavity 4 .

[0064] In order to limit the movement of the inner cylinder 2 in the inner cavity 4 in the front and rear directions, the inner cylinder 2 and the rotary support 3 are matched together so that the two can move together in the inner cavity 4. A first axial limiting structure is set between the inner cavity 4 and the inner cylinder 2. When the inner cylinder 2 reaches the preset installation position, the first axial limiting structure can limit the inner cylinder 2 from moving axially toward the front of the outer shell 1. Specifically, Figure 5 As shown, the first axial limiting structure may include a front blocking wall 5 arranged on the wall of the inner cavity 4, which can cooperate with the axial front side of the rotary support 3, thereby limiting the movement of the rotary support body 3 and the inner cylinder 2 toward the front of the outer shell 1. When the rotary support 3 adopts a bearing, the front blocking wall needs to protrude from the outer cylindrical surface of the bearing, thereby playing a better blocking role.

[0065] A second axial limiting structure is also provided between the inner cavity 4 and the inner cylinder 2. When the inner cylinder 2 is inserted into the inner cavity 4, the second axial limiting structure can be elastically evaded by radial pressure, so that the inner cylinder 2 can reach the preset installation position without hindrance. At this time, the second axial limiting structure further limits the inner cylinder 2, restricting its axial movement toward the rear of the outer shell 1. Specifically, Figure 5As shown, the second axial limiting structure can be an elastic rear clamping wall 6 arranged on the wall of the inner cavity 4. During the process of inserting the inner cylinder 2 into the inner cavity 4 of the outer shell 1, the rotary support 3 radially squeezes the elastic rear clamping wall 6, and the elastic rear clamping wall 6 produces elastic deformation, thereby allowing the rotary support 3 and the inner cylinder 2 to pass smoothly and reach the positioning position. At this time, the elastic rear clamping wall 6 rebounds again, thereby preventing the rotary support 3 and the inner cylinder 2 from moving toward the rear of the outer shell 1.

[0066] The elastic rear clamping wall 6 can be a triangular protrusion 601 arranged along the circumferential direction of the inner cavity 4 of the outer shell 1. The triangular protrusion 601 can be one, two or more, distributed on the circumferential direction of the inner cavity 4. In addition, multiple triangular protrusions 601 distributed on the axial direction of the inner cavity 4 can be connected together to form a ring structure. Figure 3 and Figure 4 As shown, the outer shell 1 is provided with hollow grooves 7 on both sides of the triangular protrusion 601, which are connected to the inner cavity, thereby enhancing the elasticity of the triangular protrusion 601 and ensuring that the triangular protrusion 601 can produce appropriate elastic avoidance when subjected to radial pressure from the rotary support member 3. Specifically, Figure 5 As shown, the triangular protrusion 601 has a guide slope 602 with a higher front end and a lower rear end in the front-to-back direction of the inner cavity 4. The guide slope 602 forms an acute angle with the axis of the inner cavity 4. When the rotating support 3 and the inner cylinder 2 move toward the preset positioning position, the guide slope 602 first contacts the rotating support 3, guiding the rotating support 3 axially to the preset positioning position through the inclined surface structure. Secondly, after the rotating support 3 passes the guide slope 602, the triangular protrusion 601 also has a radial surface 603. The radial surface 603 forms a right angle with the axis of the inner cavity 4, thereby preventing the rotating support 3 and the inner cylinder 2 from moving toward the rear of the outer shell 1. When the rotating support 3 uses a bearing, the radial surface 603 needs to protrude beyond the outer cylindrical surface of the bearing.

[0067] In another possible embodiment, an acute angle or an obtuse angle is formed between the radial surface 603 and the axis of the inner cavity 4, which can also play a certain blocking role.

[0068] In one possible embodiment, the second axial limiting structure is disposed adjacent to the first axial limiting structure, and both are disposed together at both ends or in the middle section of the outer shell 1 and the inner cylinder 2. When the second axial limiting structure is disposed adjacent to the first axial limiting structure, a retaining groove for the axially limiting slewing support 3 can also be formed between the front retaining wall 5 and the elastic rear retaining wall 6 on the inner cavity 4 of the outer shell 1.

[0069] In another possible embodiment, the second axial limiting structure can also be set separately from the first axial limiting structure. It is only necessary that the first axial limiting structure is set at the front end of the inner cavity 4 of the outer shell 1, and the second axial limiting structure is set at the rear end of the inner cavity 4 of the outer shell 1.

[0070] In this way, the first axial limiting structure and the second axial limiting structure can realize self-positioning and self-locking of the inner cylinder 2 in the inner cavity 4 of the outer shell 1, thereby realizing quick installation and matching between the inner cylinder 2 and the outer shell 1, greatly simplifying the assembly process, and improving the connection stability between the outer shell 1 and the inner cylinder 2 structure.

[0071] The rotary support 3 used in the above-mentioned installation process can be a bearing, the outer ring of which is fixedly connected to the inner cavity 4 of the outer shell 1, and the inner ring is fixedly connected to the inner cylinder 2, thereby realizing the rotation of the inner cylinder 2 in the inner cavity 4; the rotary support can also be a simple integrated annular support structure, which can be fixedly connected to the inner cavity 4, and the inner cylinder 2 and the annular support structure are rotatably connected, so that the rotation of the inner cylinder 2 in the inner cavity 4 can also be realized; the rotary support 3 can also be an annular support structure fixedly connected to the inner cylinder 2, and the annular support structure is rotatably connected to the wall of the inner cavity 4, so that the rotation of the inner cylinder 2 in the inner cavity 4 can also be realized.

[0072] In order to connect the rope to the handle, the conventional technical solution is to connect the connecting structure extending out of the outer shell 1 to the front end of the inner cylinder 2, and the rope passes through the opening on the connecting structure to achieve the fixation of the rope and the handle. This connection method is easy to loosen the rope and is not stable. For this reason, the inner cylinder 2 of this embodiment is provided with a connecting structure along its axial direction. Figure 2 The cavity 11 shown is used when the rope body is installed. The rope body is passed through the cavity 11, thereby lengthening the fixed distance of the rope body, making the connection between the rope body and the inner cylinder 2 more stable and tight, and can also give full play to the role of the inner cylinder 2 in increasing the transmission bearing length during the rotation of the rope body and reducing the amount of shaking during the rotation of the rope body.

[0073] If the handle is a straight cylindrical structure, the user cannot find the best point of force when holding the handle, nor can they hold it well. Therefore, the front end of the outer shell 1 is designed as a straight cylindrical structure, which can serve as a force point, and the rear end is designed as a cylinder with a diameter gradually increasing in the front-to-back direction, which can serve as a grip point. Specifically, the outer contour of the central section of the outer shell 1 is an arc curve, which makes it easier for the user to hold the handle and find the best point of force, facilitating better rope skipping.

[0074] In addition, when directly holding the outer shell 1, whether the outer shell 1 is made of plastic or metal, it is easy to slip during the holding process and it is easy to cause damage to the palm. For this reason, the outer surface of the outer shell 1 is also covered with a Figure 9The illustrated grip 13 can be made of silicone to prevent slipping and protect the palm. The silicone grip 13 can also be patterned to enhance its aesthetics and increase friction between the palm and the grip 13. Specifically, raised stoppers 12 are provided at both ends of the outer shell 1 along its periphery. These stoppers 12 at both ends limit the grip 13, which is mounted on the outer wall of the outer shell 1, preventing it from shifting on the outer shell 12.

[0075] Example 2

[0076] Based on Example 1, the first axial limiting structure may also be a structure in which elastic front and rear retaining walls are provided on the rotary support member 3, and corresponding protrusions are provided on the wall of the inner cavity 4 of the outer shell 1. During the process of inserting the rotary support member 3 and the inner cylinder 2 into the inner cavity 4 from the rear end thereof, the elastic front retaining wall first contacts the protrusions on the wall of the inner cavity 4, thereby performing elastic avoidance. When the rotary support member 3 and the inner cylinder 2 reach a preset positioning position, the elastic front retaining wall blocks the rotary support member 3 and the inner cylinder 2 from moving toward the front of the outer shell 1, while the rear retaining wall blocks the rotary support member 3 and the inner cylinder 2 from moving toward the rear of the outer shell 1, thereby achieving self-positioning and self-locking of the inner cylinder 2 when inserted into the inner cavity 4 of the outer shell 1.

[0077] Example 3

[0078] While the basic technical solution of Example 1 or Example 2 remains unchanged, the assembly between the rotary support 3 and the inner cylinder 2 is improved.

[0079] Regarding the assembly of the slewing support 3 and the inner cylinder 2, the slewing support 3 generally uses bearings. The traditional assembly method is generally to set a sleeve on the rotating shaft and fix the bearing by positioning the sleeve. This assembly method is also relatively complicated and requires relatively high installation accuracy of the sleeve. In addition, adding a sleeve structure to the handle will also increase the overall weight, which is not conducive to the operation during rope skipping.

[0080] For this reason, Figure 6-8 As shown, in this embodiment, the first axial limiting portion and the second axial limiting portion are used between the rotary support member 3 and the inner cylinder 2 to achieve self-positioning and self-locking when the rotary support member 3 is installed on the inner cylinder 2, simplifying the complexity of the assembly process and improving the stability of the inner cylinder 2 when rotating in the outer shell 1.

[0081] Specifically, at least one swivel support position is provided on the outer wall of the inner cylinder 2 for inserting the swivel support member 3. In the axial direction along which the inner cylinder 2 is inserted into the outer cylinder 1, a first axial limiter and a second axial limiter are located on either side of the swivel support position. As the swivel support member 3 is inserted from the front end of the inner cylinder and moved into the swivel support position, the first axial limiter is radially contracted by the squeezing force of the swivel support member 3, thereby allowing the swivel support member 3 to pass through. After the swivel support member 3 reaches the swivel support position, the first axial limiter restricts axial movement of the swivel support member 3 toward the front end of the inner cylinder 2, while the second axial limiter restricts axial movement of the swivel support member 3 toward the rear end of the inner cylinder 2.

[0082] The first axial limiter can be an elastic protrusion 8 circumferentially disposed along the outer wall of the inner cylinder 2. The elastic protrusion 8 is located in a groove defined in the outer wall of the inner cylinder 2. The base of the elastic protrusion 8 elastically connects to the groove wall, allowing the elastic protrusion 8 to radially contract, allowing the slewing support 3 to smoothly reach the slewing support position. Specifically, when the slewing support 3 utilizes a bearing, the elastic protrusion 8 protrudes beyond the inner cylindrical surface of the bearing. The second axial limiter can be an axially stepped surface 9 disposed on the inner cylinder 2, which limits axial rearward movement of the slewing support 3 after it reaches the slewing support position. When the slewing support 3 utilizes a bearing, the axially stepped surface is higher than the inner cylindrical surface of the bearing.

[0083] In another possible embodiment, Figure 2 、 Figure 5 and Figure 7 As shown, the slewing support 3 utilizes two bearings, both of which are sleeved onto the inner cylinder 2 from the front end and spaced a distance apart. The axially rearward bearing is restrained by the first and second axial restraining portions, while the axially forward bearing is restrained by the coordinated positioning of an upper axial step surface 9 on the inner cylinder 2 and a blocking surface 10 provided on the inner cavity 4 wall of the outer shell 1. The upper axial step surface 9 restricts the axially forward slewing support 3 from axially rearward movement, while the blocking surface 10 restricts the axially forward slewing support 3 from axially forward movement. During use, through precise machining and assembly, the first and second axial restraining portions, the upper axial step surface 9, and the blocking surface 10 provide secondary positional restraint for the slewing support 3 and the inner cylinder 2.

[0084] In this way, the rotary support member 3 can be positioned and installed on the inner cylinder 2 in a simple assembly manner, which greatly simplifies the complexity of the assembly process and also improves the stability of the inner cylinder 2 in the rotation of the outer cylinder 1.

[0085] Example 4

[0086] A skipping rope comprises two skipping rope handles according to embodiments 1-3, and a rope body connecting the two handles, wherein one end of the rope body is installed in the installation portion of the inner cylinder 2.

[0087] like Figure 1 and Figure 2 As shown, the inner cylinder 2 is provided with a cavity 11 along its axial direction, and the rear end of the cavity 11 is inserted into an axial limiting assembly through which the rope body passes. When the axial limiting assembly is inserted into the cavity 11, the portion of the axial limiting structure that clamps the rope body is subjected to radial pressure from the inner wall of the cavity 11 and contracts radially, thereby limiting the movement of the rope body toward the front end of the cavity 11.

[0088] Specifically, a blocking portion 15 is provided in the cavity of the inner cylinder 2 to limit the forward movement of the axial limit assembly. Specifically, a space with a larger diameter is provided at the rear end of the cavity 11 of the inner cylinder 2, and the stepped surface at the intersection of the diameter change blocks the forward movement of the axial limit assembly.

[0089] like Figure 10 As shown, the axial limit assembly can be a cylindrical rope clamp 1402 that is directly inserted from the rear end of the cavity 11. At least one elastic claw 14022 is provided on the outer wall of the rope clamp 1402. The elastic claw 14022 is located in a groove provided on the outer wall of the rope clamp 1402, and its base is elastically connected to the groove wall. After the rope passes through the rope clamp 1402, the rope clamp 1402 is inserted into the cavity 11 from the rear end. During this process, the elastic claw 14022 is radially squeezed by the cavity wall of the cavity 11 and radially contracts, thereby clamping the rope. The elastic claw 14022 can be elastically connected to the rope clamp 1402 by welding or integral molding, and the number of elastic claws 14022 can be adjusted according to actual application. The elastic claws 14022 can also be integrally provided on the entire circumference of the rope clamp 1402 to form an annular elastic claw 14022.

[0090] During use, due to the variety of materials, when inner cylinder 2 is made of plastic, the elastic claws 14022 directly contact the walls of cavity 11, easily causing inner cylinder 2 to expand and hindering its stable rotation. To this end, the axis limiting assembly also includes a rope clamping sleeve 1401 that is directly inserted into cavity 11, and a cylindrical rope clamp 1402 is inserted into rope clamping sleeve 1401, through which the rope passes. Thus, when rope clamp 1402 is inserted into rope clamping sleeve 1401, elastic claws 14022 are radially squeezed by the inner walls of rope clamping sleeve 1401 and radially contract, thereby clamping the rope. To prevent elastic claws 14022 from continuously being squeezed forward within rope clamping sleeve 1401 during rope skipping, a limiting wall 14021 is provided at the rear end of rope clamp 1402 to prevent it from moving forward within rope clamping sleeve 1401.

[0091] In this embodiment, the rope body clamped by the rope clip 1402 can be a rope body of materials such as nylon rope, PVC rope and PU rope, and nylon rope is the best choice. When using PU rope, the rope clip 14025 can also be replaced with a PU skipping rope silicone sleeve to fix the rope body.

[0092] In the description of this patent, it should be understood that the terms "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "front", "back", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this patent.

[0093] In this patent, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; and they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this patent based on the specific circumstances.

[0094] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A skipping rope handle, comprising an outer shell (1) and an inner cylinder (2), wherein the inner cylinder (2) is rotatably mounted in the outer shell (1) via a rotary support (3), characterized in that: The outer shell (1) has an inner cavity (4) extending axially from front to back, and is configured to allow the inner cylinder (2) to be inserted into the inner cavity (4) of the outer shell (1) from an insertion port (401) at the rear end of the inner cavity (4); A first axial limiting structure and a second axial limiting structure are provided between the inner cavity (4) of the outer shell (1) and the inner cylinder (2); the first axial limiting structure is configured to limit the movement of the inner cylinder (2) in the axial direction toward the front of the outer shell (1) after the inner cylinder (2) is installed in place; the second axial limiting structure is configured to allow the second axial limiting structure to elastically avoid radial pressure during the process of inserting the inner cylinder (2) into the inner cavity (4) of the outer shell (1), so that the inner cylinder (2) can be installed in place and the movement of the inner cylinder (2) in the axial direction toward the rear of the outer shell (1) can be limited; The first axial limiting structure comprises a front clamping wall (5) provided on the wall of the inner cavity (4), and the second axial limiting structure comprises an elastic rear clamping wall (6) provided on the wall of the inner cavity (4); after the inner cylinder (2) is installed in place, the rotary support member (3) is located between the front clamping wall (5) and the elastic rear clamping wall (6); A rope installation portion is provided in the inner cylinder (2), and the end of the rope configured as a skipping rope can pass through the front end of the inner cavity (4) of the outer cylinder (1) and be installed in the rope installation portion of the inner cylinder (2).

2. The skipping rope handle according to claim 1, characterized in that: The rotary support member (3) is sleeved on the outer wall of the inner cylinder (2); The inner cavity (4) of the outer shell (1) is provided with a front clamping wall (5), which can cooperate with the axial front side surface of the rotary support member (3) to form a part of the first axial limiting structure; the inner cavity (4) of the outer shell (1) is provided with an elastic rear clamping wall (6), which is configured to allow the rotary support member (3) to radially squeeze the elastic rear clamping wall (6) during the process of the inner cylinder (2) being inserted into the inner cavity (4) of the outer shell (1), and to be positioned after axially passing through the elastic rear clamping wall (6), thereby forming a part of the second axial limiting structure.

3. The skipping rope handle according to claim 2, characterized in that: A clamping groove for the axially limiting rotary support member (3) is formed between the front clamping wall (5) and the elastic rear clamping wall (6) on the wall of the inner cavity (4) of the outer shell (1).

4. The skipping rope handle according to claim 3, characterized in that: The elastic rear clamping wall (6) comprises at least one triangular protrusion (601) circumferentially arranged along the wall of the inner cavity (4) of the outer shell (1); the triangular protrusion (601) comprises a guiding inclined surface (602) with a higher front end and a lower rear end for guiding the rotary support member (3) to move axially to a preset position, and also comprises a radial surface (603) for limiting the inner cylinder (2) from moving axially toward the rear of the outer shell (1).

5. The skipping rope handle according to claim 4, characterized in that: The outer shell (1) is provided with hollow grooves (7) on both sides of the triangular protrusion (601) and connected to the inner cavity (4), so that the triangular protrusion (601) can elastically avoid radial pressure.

6. The skipping rope handle according to claim 2, characterized in that: At least one swivel support position for fitting the swivel support member (3) is provided on the outer wall of the inner cylinder (2); a first axial limiting portion and a second axial limiting portion are respectively provided on both sides of the swivel support position in the axial direction along which the inner cylinder (2) is inserted into the outer cylinder (1); the first axial limiting portion is configured to radially contract under the squeezing force of the swivel support member (3) when the swivel support member (3) is inserted from the front end of the inner cylinder (2) and axially moved to fit into the swivel support position, so as to limit the axial forward movement of the swivel support member (3) after the swivel support member (3) passes through; the second axial limiting portion is configured to limit the axial backward movement of the swivel support member (3).

7. The skipping rope handle according to claim 6, characterized in that: The first axial limiting portion is at least one elastic protrusion (8) arranged along the circumference of the outer wall of the inner cylinder (2). The elastic protrusion (8) is located in a groove opened on the outer wall of the inner cylinder (2), and its root is elastically connected to the groove wall.

8. The skipping rope handle according to any one of claims 2 to 7, characterized in that: The rotary support member (3) is a bearing, of which there are two; the two bearings are both sleeved on the inner cylinder (2) from the front end of the inner cylinder (2) and are spaced apart from each other.

9. The skipping rope handle according to claim 8, characterized in that: The inner cylinder (2) is provided with an upper axial stepped surface (9) for limiting the axial backward movement of the bearing on the front side, and the inner cavity (4) wall of the outer shell (1) is provided with a blocking surface (10) for limiting the axial forward movement of the bearing on the front side.

10. The skipping rope handle according to any one of claims 2 to 7, characterized in that: The inner cylinder (2) is provided with a cavity (11) along its axial direction for inserting a skipping rope.

11. The skipping rope handle according to claim 1, characterized in that: The front end of the outer shell (1) is a straight cylinder, and the rear end is a cylinder with a diameter gradually increasing in the front-to-back direction.

12. The skipping rope handle according to claim 1 or 11, characterized in that: Both ends of the outer shell (1) are provided with limiting portions (12) protruding along the outer circumference thereof, and the limiting portions (12) at both ends are limitedly sleeved on the gripping sleeves (13) on the outer wall of the outer shell (1).

13. A skipping rope comprising a handle and a rope body, characterized in that: The handle adopts the skipping rope handle described in any one of claims 1 to 12, and one end of the rope body is installed in the installation portion of the inner cylinder (2).

14. The skipping rope according to claim 13, wherein: The inner cylinder (2) is provided with a cavity (11) along its axial direction, and an axial limiting assembly through which the rope body passes is inserted into the rear end of the cavity (11). When the axial limiting assembly is inserted into the cavity (11), the portion of the axial limiting structure that clamps the rope body is subjected to radial pressure from the inner wall of the cavity (11) and contracts radially, thereby limiting the movement of the rope body toward the front end of the cavity (11).

15. The skipping rope according to claim 14, characterized in that The cavity of the inner cylinder (2) is provided with a blocking portion (15) for limiting the forward movement of the axial limiting assembly; The axial limiting structure comprises a rope clamp sleeve (1401) inserted into the cavity (11) and blocked by the blocking portion (15), and the rope clamp sleeve (1401) rotates together with the inner cylinder (2); a cylindrical rope clamp (1402) is inserted into the rope clamp sleeve (1401) and passed through by the rope body, and the outer wall of the rope clamp (1402) is provided with at least one elastic clamping claw (14022) in contact with the cavity wall (11) and the rope body, and the elastic clamping claw (14022) is located in a groove provided on the outer wall of the rope clamp (1402), and its root is elastically connected to the groove wall; the rear end of the rope clamp (1402) is provided with a limiting wall (14021) for preventing it from moving axially forward in the rope clamp sleeve (1401).

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