Sand type skipping rope structure

Through the combined structure of tension wire, rope core and casing, the middle part is formed by two extrusion treatments, which solves the problems of easy breakage, high noise and large friction of sand-type skipping rope, and achieves the effect of high strength and length stability.

CN223299488UActive Publication Date: 2025-09-05DONGGUAN HENGXIANG PLASTICS PROD CO LTD
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Patent Information

Application Number
CN202422443868.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-10
Publication Date
2025-09-05
Estimated Expiration
2034-10-10

AI Technical Summary

Technical Problem

The existing sand-type skipping rope connection method is prone to breakage, and the noise reduction and friction reduction effects are poor, which may lead to heat expansion and affect length stability.

Method used

The tension wire, rope core and casing structure are used to form the middle part through two extrusion treatments. The middle part is in the contact position of the skipping rope and the ground, and is made of metal or fiber wire and PVC/TPU, and is peeled and cut, which enhances the connection strength and reduces friction and noise.

Benefits of technology

It improves the service life and length stability of sand-type skipping rope, reduces friction and noise, and avoids heating and expansion problems.

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Abstract

The utility model discloses a sand type skipping rope structure, which relates to the technical field of skipping ropes and comprises a tension wire, a rope core is wrapped outside the tension wire, a sleeve is wrapped outside the rope core, and the middle section of the sleeve is provided with a middle thin part. According to the sand type skipping rope structure, the middle and thin part is obtained by stripping and cutting after two times of extrusion molding treatment, and compared with a sand type skipping rope structure in the prior art in which rope parts with different thicknesses are connected together in a simple splicing glue bonding mode, the sand type skipping rope structure cannot be broken and is high in self strength; and the service life of the sand type skipping rope can be greatly prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of rope skipping, in particular to a sand-type rope skipping structure. Background Art

[0002] In recent years, to improve the durability and user experience of skipping ropes, some new sand ropes have begun to adopt a segmented design, specifically by dividing the rope into sections of varying thickness. This design aims to reduce noise during skipping by varying the contact area and friction between the rope and the ground, while also improving flexibility and durability. A common practice is to have thicker sections at the left and right ends of the rope to enhance the feel and durability, while having a thinner section in the middle to reduce friction and noise.

[0003] However, existing segmented sand ropes present several significant design issues. First, many ropes connect different rope sections using simple splicing and gluing. This connection method often carries the risk of breakage at the joints, seriously impacting the rope's lifespan. Second, while some ropes attempt to reduce noise and friction through specialized materials or structures, these effects are often ineffective and can cause the rope to heat up and expand during use, affecting its standard length and stability. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a sand-type skipping rope structure, which solves the problems raised by the above-mentioned background technology.

[0005] To achieve the above purpose, the present invention is implemented through the following technical solutions: including a tension wire, the outside of the tension wire is wrapped with a rope core, the outside of the rope core is wrapped with a sleeve, the sleeve is arranged on the left and right sides of the rope core, and the middle section is provided with a middle and thin part.

[0006] Furthermore, the tension wire is made of metal or fiber.

[0007] Furthermore, the rope core and sleeve are components made of PVC or TPU.

[0008] Furthermore, the diameter of the tension wire is 0.2-1.0 mm, the diameter of the rope core is 2.5-4 mm, and the diameter of the sleeve is 3-8 mm.

[0009] Furthermore, in the section where the middle and thin parts are located, the rope core is exposed to the environment.

[0010] Furthermore, the position of the middle and thin part corresponds to the position where the skipping rope contacts the ground.

[0011] The utility model provides a sand-type skipping rope structure. Compared with the prior art, it has the following beneficial effects:

[0012] The sand-type skipping rope structure has a middle and thin part that is obtained by two extrusion processes and then peeling and cutting. Compared with the sand-type skipping rope structure in the existing technology, which generally adopts a simple splicing and glue bonding method to connect rope parts of different thicknesses together, the sand-type skipping rope structure will not break, has high strength, and can greatly extend the service life of the sand-type skipping rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of the utility model from the first perspective;

[0014] Figure 2 This is a schematic structural diagram of the utility model from a second viewing angle;

[0015] Figure 3 It is a half-section schematic diagram of the present utility model.

[0016] In the figure: 1. Tension wire; 2. Rope core; 3. Casing; 4. Middle and detailed parts. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-3The utility model provides a technical solution: a sand-style skipping rope structure, consisting of a tension wire 1, a rope core 2, a sleeve 3 and a middle and thin part 4, wherein the tension wire 1 adopts a steel wire structure in the form of metal braiding, and the rope core 2 and the sleeve 3 are made of PVC or TPU material, that is, the rope core 2 and the sleeve 3 can both be made of PVC material, or both can be made of TPU material, or any one of the rope core 2 and the sleeve 3 can be made of PVC or TPU material. The specific production is carried out according to the actual situation. During the production, two extrusion processes are required. Specifically, It is necessary to first extrude a rope core 2 on the outside of the tension wire 1, and then extrude a sleeve 3 on the outside of the rope core 2. After the two extrusions are completed, the middle part of the sleeve 3 is peeled off and cut off by machinery to form the middle and thin part 4. After the middle and thin part 4 is formed, the rope core 2 will be exposed. This section will correspond to the position in contact with the ground during the use of the skipping rope. The sand-style skipping rope obtained after the above processing steps has a tension wire 1 with a diameter of 0.2-1.0mm, a rope core 2 with a diameter of 2.5-4mm, and a sleeve 3 with a diameter of 3-8mm.

[0019] The preferred material for the fiber filaments is polyester thread, because such thread has good toughness and is relatively soft, which will not affect the bending of the skipping rope.

[0020] The sand-type skipping rope obtained through the above-mentioned processing steps has a three-section structure with thick ends and a thin middle part compared with the structure of the existing sand-type skipping rope. The advantage of this design is that the existence of the thin middle part 4 will reduce the resistance when rubbing against the ground, and the noise is not so loud. In addition, the tension wire 1 set will generate heat when the skipping rope rubs against the ground many times. With this tension wire 1 made of steel wire, it will not heat up and expand, and will not be stretched, so the entire sand-type skipping rope can always maintain a standard length when skipping rope, and the entire sand-type skipping rope adopts a twice-extrusion structure, which can greatly extend the service life of the skipping rope.

Claims

1. A sand-type skipping rope structure, characterized in that: The invention comprises a tension wire (1), wherein the tension wire (1) is externally wrapped with a rope core (2), wherein the rope core (2) is externally wrapped with a sleeve (3), wherein the sleeve (3) is arranged on the left and right sides of the rope core (2), and a middle section (4) is arranged in the middle section. The outer portion of the rope core (2) is extruded into a sleeve (3), and the middle portion of the sleeve (3) is peeled and cut off to form a middle thin portion (4).

2. A sand-style skipping rope structure according to claim 1, characterized in that: The tension wire (1) is made of metal or fiber.

3. A sand-style skipping rope structure according to claim 1, characterized in that: The rope core (2) and the sleeve (3) are components made of PVC or TPU material.

4. A sand-type skipping rope structure according to claim 1, characterized in that: The diameter of the tension wire (1) is 0.2-1.0 mm, the diameter of the rope core (2) is 2.5-4 mm, and the diameter of the sleeve (3) is 3-8 mm.

5. A sand-style skipping rope structure according to claim 1, characterized in that: In the section where the thin part (4) is located, the rope core (2) is exposed to the environment.

6. A sand rope skipping structure according to claim 1, characterized in that: The position of the middle and thin part (4) corresponds to the position where the skipping rope contacts the ground.