Double-bearing racing skipping rope

Abstract

The utility model particularly relates to a double-bearing racing skipping rope which comprises a handle and a rope body, the handle is arranged in a hollow mode, a middle through hole is divided into two sections, the front section is a bearing installation hole, the rear section is a taper hole, a first bearing and a second bearing are arranged at the two ends in the bearing installation hole respectively, sleeves are movably arranged in inner rings of the first bearing and the second bearing, and the sleeves are arranged in a hollow mode. A buckle mounting part is arranged at one end of the sleeve, a buckle is arranged in the buckle mounting part, the rope body penetrates through the sleeve and the buckle, the buckle is matched with the sleeve to fix the rope body, and the sleeve is tightly attached to the end face of the second bearing through inertia of throwing force; by arranging a double-bearing structure, the skipping rope rotates more smoothly and is not prone to winding, meanwhile, the sleeve penetrates through inner rings of the two bearings, the two bearings are pressed through inertia of throwing force during rope skipping, it is ensured that the two bearings rotate stably, the rope body is fixed through the sleeve and the buckle, and the use length of the rope body is adjusted by meshing the position of the rope body through the buckle; the weight of the handle is reduced, and the comfort level of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of sports equipment technology, specifically to a double-bearing racing jump rope. Background Technology

[0002] Rope skipping is a sport with a long history, simple and easy to learn, and has many benefits. With the innovation of traditional rope skipping, various competition methods have been developed, making it a popular sport. As people pursue rope skipping speed competition, the traditional rope can no longer meet market demand.

[0003] A search revealed that Chinese patent CN221889118U discloses a double-bearing jump rope, including a coiled spool. The top of the coiled spool is fixedly connected to the bottom of a first bearing structure, the top of the first bearing structure is fixedly connected to the bottom of a control structure, the top of the control structure is fixedly connected to the bottom of a second bearing structure, and the middle of the second bearing structure is fixedly connected to one end of an L-shaped guide rod. A nylon rope is inserted into the other end of the L-shaped guide rod. The arrangement of the coiled spool, the first bearing structure, the control structure, the second bearing structure, the L-shaped guide rod, and the nylon rope allows for convenient adjustment of the jump rope length, avoiding the problem of frequent rope length adjustments due to individual height differences during jump rope exercise.

[0004] While the above solution can effectively achieve convenient adjustment of jump rope length to some extent, it still has the following shortcomings:

[0005] The above-mentioned solution has a relatively complex internal structure for the handle, which increases manufacturing costs and the weight of the handle, affecting the user's experience. Furthermore, the use of an L-shaped guide rod can easily lead to rope tangling. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a dual-bearing racing jump rope.

[0007] The technical solution of this utility model is as follows:

[0008] A double-bearing racing jump rope includes a handle and a rope body. The handle is hollow, with a central through hole divided into two sections: a bearing mounting hole at the front and a tapered hole at the rear. A first bearing and a second bearing are respectively installed at both ends of the bearing mounting hole. A sleeve is movably installed inside the inner rings of the first bearing and the second bearing. The sleeve is hollow, with a snap-fit ​​mounting part at one end. A snap-fit ​​is installed inside the snap-fit ​​mounting part. The rope body passes through the sleeve and the snap-fit. The snap-fit ​​cooperates with the sleeve to fix the rope body. The sleeve is tightly pressed against the end face of the second bearing due to the inertia of the swinging force.

[0009] Furthermore, the outer wall of the handle is provided with a grip portion, the length of which is greater than or equal to half the length of the handle, and the surface of the grip portion is provided with several friction ribs.

[0010] Furthermore, the diameter of the hole at one end of the handle is smaller than the diameter of the bearing mounting hole, and a bearing limiting step is formed on the inner end face of the handle, with one end of the first bearing in close contact with the bearing limiting step.

[0011] Furthermore, the outer rings of the first bearing and the second bearing are interference-fitted with the bearing mounting holes, and the first bearing and the second bearing have the same specifications.

[0012] Furthermore, the buckle is provided with a plurality of rope engagement parts, which are radially evenly distributed, and a contraction groove is provided between the rope engagement parts to cause the rope engagement parts to contract inward.

[0013] Furthermore, the inner surface of the rope engagement part is provided with engagement protrusions, which are in close contact with the surface of the rope. The length of the rope can be adjusted by the position of the engagement with the rope.

[0014] Furthermore, the buckle and the buckle mounting part are clearance-fitted, and the elasticity of the rope engagement part causes the rope engagement part to be interference-fitted with the buckle mounting part.

[0015] The beneficial effects achieved by this utility model are as follows:

[0016] 1. This utility model, by setting a double bearing structure, makes the jump rope rotate more smoothly and less prone to tangling. At the same time, by passing through the inner ring of the two bearings through the sleeve, the inertia of the swinging force when jumping rope is used to press the two bearings together, ensuring that the two bearings rotate smoothly.

[0017] 2. This utility model uses a sleeve and a buckle to fix the rope body, and the length of the rope body can be flexibly adjusted by the position of the buckle engaging the rope body. The structure is simple, and the hollow handle greatly reduces the weight of the handle and improves the comfort of the user.

[0018] 3. By using bearings of the same specifications, this utility model reduces the complexity of the overall structure, enhances the interchangeability of bearings, facilitates installation, simplifies use, and makes maintenance easier. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a cross-sectional view of the handle of this utility model.

[0021] Figure 3 This is an exploded view of the sleeve and buckle of this utility model.

[0022] Figure 4 This is a utility model Figure 3 Enlarged diagram of point A in the middle.

[0023] In the diagram, 1 is the handle; 101 is the grip; 102 is the friction rib; 103 is the through hole; 1031 is the bearing mounting hole; 1032 is the tapered hole; 104 is the bearing limiting step; 2 is the rope; 3 is the first bearing; 4 is the sleeve; 401 is the buckle mounting part; 5 is the buckle; 501 is the rope engagement part; 502 is the contraction groove; 503 is the engagement protrusion; and 6 is the second bearing. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper end," "lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figures 1 to 4 This utility model provides a technical solution:

[0028] A double-bearing racing jump rope includes a handle 1 and a rope body 2. The handle 1 is hollow and has a central through hole 103 divided into two sections: a bearing mounting hole 1031 at the front and a tapered hole 1032 at the rear. A first bearing 3 and a second bearing 6 are respectively provided at both ends of the bearing mounting hole 1031. A sleeve 4 is movably installed inside the inner rings of the first bearing 3 and the second bearing 6. The sleeve 4 is hollow and has a buckle mounting part 401 at one end. A buckle 5 is provided inside the buckle mounting part 401. The rope body 2 passes through the sleeve 4 and the buckle 5. The buckle 5 cooperates with the sleeve 4 to fix the rope body 2. The sleeve 4 is in close contact with the end face of the second bearing 6 due to the inertia of the swinging force.

[0029] Specifically, the handle 1, the sleeve 4, and the buckle 5 are respectively injection molded, and the preferred material is ABS plastic.

[0030] The hollow handle 1 effectively reduces its weight and improves user comfort. The internal structure is simple and easy to install.

[0031] Specifically, such as Figure 1 As shown, the outer wall of the handle 1 is provided with a grip portion 101, the length of the grip portion 101 is greater than or equal to half the length of the handle 1, and the surface of the grip portion 101 is provided with a plurality of friction ribs 102.

[0032] With the above structure, the friction ribs 102 increase the friction between the palm and the grip 101, effectively preventing the user from slipping out of their hand during use.

[0033] Specifically, such as Figure 2 As shown, the diameter of the hole at one end of the handle 1 is smaller than the diameter of the bearing mounting hole 1031, and a bearing limiting step 104 is formed on the inner end face of the handle 1. One end of the first bearing 3 is in close contact with the bearing limiting step 104.

[0034] Specifically, such as Figure 2 As shown, the outer rings of the first bearing 3 and the second bearing 6 are interference-fitted with the bearing mounting hole 1031, and the first bearing 3 and the second bearing 6 have the same specifications.

[0035] By using the above structure and setting identical first bearing 3 and second bearing 6, the complexity of the internal structure is reduced, the interchangeability of bearings is improved, the installation process is simplified, and the production cost is reduced.

[0036] Specifically, such as Figure 4As shown, the buckle 5 is provided with a plurality of rope engagement parts 501, which are radially evenly distributed. A shrinkage groove 502 is provided between the rope engagement parts 501 to cause the rope engagement parts 501 to shrink inward.

[0037] Specifically, such as Figure 4 As shown, the inner surface of the rope engagement part 501 is provided with engagement protrusions 503. The engagement protrusions 503 are in close contact with the surface of the rope 2, and the length of the rope 2 can be adjusted by the position of engagement with the rope 2.

[0038] Specifically, such as Figure 3 As shown, the buckle 5 and the buckle mounting part 401 are in clearance fit, and the elastic force of the rope biting part 501 drives the rope biting part 501 to be in interference fit with the buckle mounting part 401.

[0039] With the above structure, the buckle 5 engages with the rope 2, making it easier to adjust the length of the rope 2. The buckle 5 and the buckle mounting part 401 of the sleeve 4 cooperate to form a firm and reliable connection, and it is easy to remove and adjust.

[0040] In this embodiment, during assembly, the relevant technicians first press the first bearing 3 through the tapered hole 1032 into one end of the bearing mounting hole 1031 inside the handle 1, so that it is tightly against the bearing limiting step 104. Then, the second bearing 6 is pressed into the other end of the bearing mounting hole 1031. Then, the rope 2 is passed through the through hole 103 of the handle 1, and then through the sleeve 4 and the buckle 5. Then, the buckle 5 is inserted into the buckle mounting part 401. Since the rope biting part 501 is elastic, the biting protrusion 503 tightly bites the rope 2 and at the same time, it is interference-fitted with the buckle mounting part 401, thereby fixing the length of the rope 2.

[0041] In this embodiment, when using the device, the user first pours the sleeve 4 out through the opening of the conical hole 1032, then pushes the rope 2 to remove the buckle 5 from the buckle mounting part 401, adjusts the engagement position of the rope engagement part 501 and the rope 2 to a suitable length, then inserts the buckle 5 back into the sleeve 4 to fix the rope 2, and then inserts the sleeve 4 into the inner ring of the first bearing 3 and the second bearing 6. Due to the inertia generated by the swinging force when the rope is swung, the end face of the sleeve 4 is in close contact with the second bearing 6, and at the same time, the cylindrical surface of the sleeve 4 is also in close contact with the inner ring of the first bearing 3 and the second bearing 6, making the rotation more stable and smooth, and preventing the rope 2 from getting tangled.

[0042] The parts of this utility model not described are existing or known technologies.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0044] The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-bearing racing jump rope, characterized in that: The device includes a handle (1) and a rope (2). The handle (1) is hollow and has a through hole (103) in the middle divided into two sections: a bearing mounting hole (1031) in the front section and a tapered hole (1032) in the rear section. A first bearing (3) and a second bearing (6) are respectively provided at both ends of the bearing mounting hole (1031). A sleeve (4) is movably provided inside the inner ring of the first bearing (3) and the second bearing (6). The sleeve (4) is hollow and has a buckle mounting part (401) at one end. A buckle (5) is provided inside the buckle mounting part (401). The rope (2) passes through the sleeve (4) and the buckle (5). The buckle (5) cooperates with the sleeve (4) to fix the rope (2). The sleeve (4) is tightly attached to the end face of the second bearing (6) by the inertia of the swing force.

2. The dual-bearing racing jump rope according to claim 1, characterized in that: The outer wall of the handle (1) is provided with a gripping part (101), the length of the gripping part (101) is greater than or equal to half the length of the handle (1), and the surface of the gripping part (101) is provided with a plurality of friction ribs (102).

3. The dual-bearing racing jump rope according to claim 1, characterized in that: The diameter of the hole at one end of the handle (1) is smaller than the diameter of the bearing mounting hole (1031). A bearing limiting step (104) is formed on the inner end face of the handle (1). One end of the first bearing (3) is in close contact with the bearing limiting step (104).

4. The dual-bearing racing jump rope according to claim 1, characterized in that: The outer rings of the first bearing (3) and the second bearing (6) are interference-fitted with the bearing mounting hole (1031), and the first bearing (3) and the second bearing (6) have the same specifications.

5. A double-bearing racing jump rope according to claim 1, characterized in that: The buckle (5) is provided with a plurality of rope engagement parts (501), which are radially evenly distributed. A shrinkage groove (502) is provided between the rope engagement parts (501) to cause the rope engagement parts (501) to shrink inward.

6. A double-bearing racing jump rope according to claim 5, characterized in that: The inner surface of the rope engagement part (501) is provided with engagement protrusions (503), which are in close contact with the surface of the rope (2). The length of the rope (2) can be adjusted by engaging the position of the rope (2).

7. A double-bearing racing jump rope according to claim 5, characterized in that: The buckle (5) is clearance-fitted with the buckle mounting part (401), and the elasticity of the rope engagement part (501) causes the rope engagement part (501) to be interference-fitted with the buckle mounting part (401).

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