A kind of ring cloth cover end butt joint fixing assembly

Abstract

A ring-shaped cloth sleeve end-jointing and fixing assembly includes an inner fixing cylinder and an outer cylinder sleeved outside the inner fixing cylinder. The outer cylinder is horizontally divided into an upper outer fixing cylinder and a lower outer fixing cylinder along its axis, and the upper and lower outer fixing cylinders are fastened together to form a complete outer cylinder. The gap between the outer cylinder and the inner fixing cylinder is used to clamp and fix the two ends of the ring-shaped cloth sleeve. The inner side wall of the outer cylinder and the outer side wall of the inner fixing cylinder are respectively provided with anti-slip protrusions that are staggered and protrude from the body, so that the inner side wall of the outer cylinder and the outer side wall of the inner fixing cylinder form an anti-slip gap with a sawtooth cross section. This utility model fixes the two ends of the ring-shaped cloth sleeve by ultrasonic welding. Compared with the fixing method of sewing, this utility model not only has higher processing efficiency and simpler operation, but also forms a more robust fixing connection structure, making the hula hoop last longer, with a more robust overall structure, and safer to use.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, specifically a ring-shaped cloth sleeve end docking and fixing component. Background Technology

[0002] Hula hoop exercise is a convenient and low-barrier exercise method with many advantages. Hula hooping effectively exercises core muscle groups such as the rectus abdominis, external obliques, and back muscles through continuous twisting movements of the waist and abdomen. This improves the endurance and firmness of the abdominal muscles, enhances posture, and shapes the waist and hip curves. Long-term adherence can reduce lower back pain caused by insufficient core strength and improve body stability. Hula hooping is a low-intensity aerobic exercise that continuously burns calories and promotes fat burning. Studies show that 30 minutes of moderate-intensity hula hooping can burn approximately 200-300 calories, with particularly significant targeted effects on abdominal fat. The exercise requires coordinated movements of the waist, hips, legs, and arms. Long-term practice can enhance balance, flexibility, and joint range of motion, making it especially suitable for those who need to improve their motor coordination. The massage-like squeezing effect of the hula hoop on the abdomen can stimulate intestinal peristalsis, improve gastrointestinal function, and help relieve indigestion and constipation. Through continuous aerobic exercise, hula hooping can increase respiratory rate and heart rate, enhance cardiopulmonary endurance, and improve blood circulation efficiency. Long-term adherence can reduce the risk of cardiovascular disease.

[0003] Hula hoops with spring structures are widely accepted due to their ability to exercise multiple body parts and their portability. However, current spring hula hoops typically have plastic spring tubes on the outside, which produce a loud noise when colliding with the inner metal spring tube, resulting in high noise levels. Furthermore, frequent impacts can cause discoloration and lint, staining the user's clothing. To address this, the applicant has proposed a new hula hoop comprising a spring ring assembly and an annular cloth sleeve. The spring ring assembly includes a metal spring ring; the annular cloth sleeve is fitted over the metal spring ring and covers its entire outer surface. The metal spring ring serves as the rotating base of the hula hoop, providing good elasticity and a longer lifespan. The annular cloth sleeve, covering the entire outer surface of the metal spring ring, prevents direct contact between the metal and the user's body, providing insulation and protection. The annular cloth sleeve also prevents dirt from entering the metal spring ring, thus extending its lifespan and maintaining cleanliness. However, during use, it was found that since the two ends of the ring-shaped cloth cover are mainly connected by sewing, the connection part of the ring is not only difficult to sew, which greatly increases the processing time and difficulty, but also the thread of the connection part is prone to wear and breakage after long-term use, which leads to the breakage of the connection between the two ends of the ring-shaped cloth cover and affects its use. There is an urgent need for a connecting and fixing component to facilitate the fixed connection between the two ends of the ring-shaped cloth cover. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a ring-shaped cloth sleeve end-jointing fixing assembly.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: an annular cloth sleeve end docking and fixing assembly, including an inner fixing cylinder and an outer cylinder sleeved outside the inner fixing cylinder. The outer cylinder is horizontally divided into an upper outer fixing cylinder and an lower outer fixing cylinder along the axis, so that the upper fixing cylinder and the lower outer fixing cylinder are fastened and fixed together to form a complete outer cylinder. The gap between the outer cylinder and the inner fixing cylinder is used to clamp and fix the two ends of the annular cloth sleeve. The center part of the upper outer fixing cylinder is provided with a long strip arc-shaped opening structure. The outer side wall of the inner fixing cylinder is provided with an outwardly protruding arc-shaped limiting block. When the inner fixing cylinder is sleeved inside the outer cylinder, the arc-shaped limiting block is located inside the long strip arc-shaped opening structure.

[0006] Furthermore, the inner wall of the outer cylinder and the outer wall of the inner fixed cylinder are respectively provided with anti-slip protrusions that protrude from the body, so that an anti-slip gap with a sawtooth cross section is formed between the inner wall of the outer cylinder and the outer wall of the inner fixed cylinder.

[0007] Furthermore, the bottom two sides of the upper outer fixing cylinder are respectively provided with inwardly recessed positioning grooves, and the top two sides of the lower outer fixing cylinder are provided with elongated positioning strips. When the upper fixing cylinder and the lower outer fixing cylinder are fastened together, the positioning strips are just inserted into the corresponding positioning grooves.

[0008] Furthermore, the inner fixed cylinder is provided with a guide structure with a flared opening at each end.

[0009] Furthermore, the inner fixing cylinder, the upper fixing cylinder, and the outer lower fixing cylinder are made of plastic injection molding, and the upper fixing cylinder and the outer lower fixing cylinder are fastened together by ultrasonic welding at the fastening contact parts.

[0010] Furthermore, the inner fixing cylinder is shorter than the outer cylinder, so that the inner fixing cylinder is completely located inside the outer cylinder.

[0011] Furthermore, the outer edges at both ends of the outer cylinder are respectively set as rounded corner structures.

[0012] This invention provides a fixed connection between the two ends of a circular cloth sleeve using ultrasonic welding. Compared to sewing, this method offers higher processing efficiency, simpler operation, and a more robust connection structure. It provides all-around anti-slip clamping and fixation to both ends of the circular cloth sleeve, effectively preventing the sleeve from breaking and thus extending its lifespan. The overall structure is more robust and safer to use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model;

[0015] Figure 3 This is a top-view exploded structural diagram of this utility model;

[0016] Figure 4 This is a bottom-view exploded structure diagram of this utility model;

[0017] Figure 5 This is a physical reference image of the hula hoop used for fixed connection according to this utility model. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as a limitation of this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0020] The following is a detailed description of this embodiment with reference to the accompanying drawings: Example

[0021] like Figure 1-4As shown, an annular fabric sleeve end-jointing fixing assembly includes an inner fixing cylinder 1 and an outer cylinder sleeved outside the inner fixing cylinder 1. The outer cylinder is horizontally divided into an upper outer fixing cylinder 2 and an lower outer fixing cylinder 3 along the axis, so that the upper fixing cylinder 2 and the lower outer fixing cylinder 3 are fastened together to form a complete outer cylinder. The gap between the outer cylinder and the inner fixing cylinder 1 is used to clamp and fix the two ends of the annular fabric sleeve. In order to further enhance the anti-slip effect and improve the firmness of the fixed connection, the inner side wall of the outer cylinder and the outer side wall of the inner fixing cylinder 1 are respectively staggered with anti-slip protrusions 6 protruding from the body, so that the inner side wall of the outer cylinder and the outer side wall of the inner fixing cylinder 1 form an anti-slip gap 7 with a sawtooth cross section.

[0022] Specifically: The bottom two sides of the outer upper fixing cylinder 2 are respectively provided with inwardly recessed positioning grooves 8, and the top two sides of the outer lower fixing cylinder 3 are respectively provided with elongated positioning strips 9. When the upper fixing cylinder 2 and the outer lower fixing cylinder 3 are fastened together, the positioning strips 9 are just inserted into the corresponding positioning grooves 8. The two ends of the inner fixing cylinder 1 are respectively provided with flared opening guide structures 10. The inner fixing cylinder 1, the upper fixing cylinder 2 and the outer lower fixing cylinder 3 are made of plastic injection molding, and the fastening contact parts of the upper fixing cylinder 2 and the outer lower fixing cylinder 3 are fastened together by ultrasonic welding. The length of the inner fixing cylinder 1 is less than that of the outer cylinder, so that the inner fixing cylinder 1 is completely located inside the outer cylinder. The outer edges of the two ends of the outer cylinder are respectively provided with rounded corner edge structures 11. Example

[0023] like Figure 1-4 As shown, an annular fabric sleeve end-connecting and fixing assembly includes an inner fixing cylinder 1 and an outer cylinder sleeved outside the inner fixing cylinder 1. The outer cylinder is horizontally divided into an upper outer fixing cylinder 2 and a lower outer fixing cylinder 3 along the axis, so that the upper fixing cylinder 2 and the lower outer fixing cylinder 3 are fastened together to form a complete outer cylinder. The gap between the outer cylinder and the inner fixing cylinder 1 is used to clamp and fix the two ends of the annular fabric sleeve. The center of the upper outer fixing cylinder 2 is provided with a long strip arc-shaped opening structure 4. The outer side wall of the inner fixing cylinder 1 is provided with an outwardly protruding arc-shaped limiting block 5. When the inner fixing cylinder 1 is sleeved inside the outer cylinder, the arc-shaped limiting block 5 is located inside the long strip arc-shaped opening structure 4. The outer side of the arc-shaped limiting block 5 can be used for marking LOGO, affixing labels, and setting aesthetic patterns, etc.

[0024] Specifically: The bottom two sides of the outer upper fixing cylinder 2 are respectively provided with inwardly recessed positioning grooves 8, and the top two sides of the outer lower fixing cylinder 3 are respectively provided with elongated positioning strips 9. When the upper fixing cylinder 2 and the outer lower fixing cylinder 3 are fastened together, the positioning strips 9 are just inserted into the corresponding positioning grooves 8. The two ends of the inner fixing cylinder 1 are respectively provided with flared opening guide structures 10. The inner fixing cylinder 1, the upper fixing cylinder 2 and the outer lower fixing cylinder 3 are made of plastic injection molding, and the fastening contact parts of the upper fixing cylinder 2 and the outer lower fixing cylinder 3 are fastened together by ultrasonic welding. The length of the inner fixing cylinder 1 is less than that of the outer cylinder, so that the inner fixing cylinder 1 is completely located inside the outer cylinder. The outer edges of the two ends of the outer cylinder are respectively provided with rounded corner edge structures 11. Example

[0025] like Figure 1-4 As shown, an annular fabric sleeve end-connecting fixing assembly includes an inner fixing cylinder 1 and an outer cylinder sleeved outside the inner fixing cylinder 1. The outer cylinder is horizontally divided into an upper outer fixing cylinder 2 and an lower outer fixing cylinder 3 along the axis, so that the upper fixing cylinder 2 and the lower outer fixing cylinder 3 are fastened together to form a complete outer cylinder. For example, the inner fixing cylinder 1, the upper fixing cylinder 2, and the lower outer fixing cylinder 3 are made of plastic injection molding, and the fastening contact parts of the upper fixing cylinder 2 and the lower outer fixing cylinder 3 are fastened together by ultrasonic welding. The gap between the outer cylinder and the inner fixing cylinder 1 is used to clamp and fix the two ends of the annular fabric sleeve, which makes it easy to clamp the annular fabric sleeve. The center of the upper outer fixing cylinder 2 is provided with a long strip arc-shaped opening structure 4, and the outer side wall of the inner fixing cylinder 1 is provided with an outwardly protruding arc-shaped limiting block 5. When the inner fixing cylinder 1 is sleeved inside the outer cylinder, the arc-shaped limiting block 5 is located inside the long strip arc-shaped opening structure 4, and the arc-shaped limiting block 5 is slightly smaller than the long strip arc-shaped opening structure 4.

[0026] In addition, to achieve better reinforcement, the inner wall of the outer cylinder and the outer wall of the inner fixed cylinder 1 are respectively provided with anti-slip protrusions 6 that protrude from the body, so that the inner wall of the outer cylinder and the outer wall of the inner fixed cylinder 1 form an anti-slip gap 7 with a sawtooth cross section; the bottom two sides of the outer upper fixed cylinder 2 are respectively provided with inwardly recessed positioning grooves 8, and the top two sides of the outer lower fixed cylinder 3 are provided with long strip positioning strips 9. When the upper fixed cylinder 2 and the outer lower fixed cylinder 3 are fastened together, the positioning strips 9 just fit into the corresponding positioning grooves 8. The positioning strips 9 and the positioning grooves 8 cooperate, which not only makes it easy for the upper fixed cylinder 2 and the outer lower fixed cylinder 3 to be fastened together, but also plays a certain role in positioning and strengthening the connection.

[0027] For ease of installation, the inner fixing cylinder 1 is provided with a funnel-shaped guide structure 10 at both ends to facilitate insertion into the inner ring of the hula hoop, i.e., the metal spring ring. The length of the inner fixing cylinder 1 is less than that of the outer cylinder, so that the inner fixing cylinder 1 is completely located inside the outer cylinder. The outer edges of both ends of the outer cylinder are respectively provided with rounded corner edge structures 11 to improve the comfort of the outer cylinder.

[0028] The working principle of this utility model is as follows: It is used for connecting the two ends of the ring-shaped cloth sleeve of the hula hoop. This hula hoop includes a spring ring assembly and a ring-shaped cloth sleeve. The spring ring assembly includes a metal spring ring. The ring-shaped cloth sleeve is sleeved on the outside of the metal spring ring and can cover the entire outer surface of the metal spring ring.

[0029] When connecting the two ends of the annular cloth sleeve of this type of hula hoop, the inner fixing cylinder 1 is first fitted onto the metal spring ring, and the two ends of the metal spring ring are fixed by the connector. The two ends of the annular cloth sleeve are then fitted onto the inner fixing cylinder 1, and then the upper fixing cylinder 2 and the outer lower fixing cylinder 3 are fitted onto them respectively. That is, the upper fixing cylinder 2 and the outer lower fixing cylinder 3 cover the outside of the two ends of the annular cloth sleeve, and the positioning strip 9 fits perfectly into the corresponding positioning groove 8. Since the inner fixing cylinder 1, the upper fixing cylinder 2, and the outer lower fixing cylinder 3 are made of plastic injection molding, the upper fixing... The contact points of the fixed cylinder 2 and the outer lower fixed cylinder 3 can be fixed together by ultrasonic welding. The outer cylinder formed by the upper fixed cylinder 2 and the outer lower fixed cylinder 3 and the inner fixed cylinder 1 clamp the two ends of the annular cloth sleeve. A portion of the two ends of the annular cloth sleeve is clamped by the arc-shaped limiting block 5 and the long strip arc-shaped opening structure 4. The two ends of the annular cloth sleeve on both sides of the arc-shaped limiting block 5 are clamped by the anti-slip gap 7 formed by the anti-slip protrusion 6. The arc-shaped limiting block 5 forms the initial positioning and fixation, and the anti-slip protrusion 6 provides further anti-slip fixation.

[0030] This invention provides a fixed connection between the two ends of a ring-shaped fabric sleeve using ultrasonic welding. Compared to sewing, this method offers higher processing efficiency, simpler operation, and a more robust connection structure. It provides all-around anti-slip clamping and fixation to both ends of the ring-shaped fabric sleeve, effectively preventing it from breaking apart.

[0031] It should be noted that the inner fixing cylinder 1, the upper fixing cylinder 2, and the outer lower fixing cylinder 3 can also be made of metal, such as stainless steel or aluminum alloy. The upper fixing cylinder 2 and the outer lower fixing cylinder 3 can be fixed together by welding or by bonding.

[0032] Of course, the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A ring-shaped fabric sleeve end-jointing fixing assembly, comprising an inner fixing cylinder (1) and an outer cylinder sleeved outside the inner fixing cylinder (1), characterized in that: The outer cylinder is horizontally divided into an upper outer fixed cylinder (2) and a lower outer fixed cylinder (3) along the axis, so that the upper fixed cylinder (2) and the lower outer fixed cylinder (3) are fastened together to form a complete outer cylinder, and the gap between the outer cylinder and the inner fixed cylinder (1) is used to clamp and fix the two ends of the annular cloth sleeve.

2. A ferrule butt fixing assembly according to claim 1, wherein: The inner wall of the outer cylinder and the outer wall of the inner fixed cylinder (1) are respectively provided with anti-slip protrusions (6) that protrude from the body, so that an anti-slip gap (7) with a sawtooth cross section is formed between the inner wall of the outer cylinder and the outer wall of the inner fixed cylinder (1).

3. The ferrule buttressing assembly of claim 1, wherein: The outer upper fixing cylinder (2) has a long strip-shaped arc-shaped opening structure (4) at its center, and the inner fixing cylinder (1) has an outwardly protruding arc-shaped limiting block (5) on its outer side wall. When the inner fixing cylinder (1) is fitted inside the outer cylinder, the arc-shaped limiting block (5) is located inside the long strip-shaped arc-shaped opening structure (4).

4. The ferrule buttressing assembly of claim 1, wherein: The bottom two sides of the upper outer fixing cylinder (2) are respectively provided with inwardly recessed positioning grooves (8), and the top two sides of the lower outer fixing cylinder (3) are provided with long strip positioning strips (9). When the upper fixing cylinder (2) and the lower outer fixing cylinder (3) are fastened together, the positioning strips (9) are just inserted into the corresponding positioning grooves (8).

5. The ferrule buttressing assembly of claim 1, wherein: The inner fixed cylinder (1) is provided with a guide structure (10) with a flared opening at both ends.

6. An assembly for butt joining the end of a ring sock, according to claim 1, wherein: The inner fixing cylinder (1), the upper fixing cylinder (2) and the outer lower fixing cylinder (3) are made of plastic injection molding, and the upper fixing cylinder (2) and the outer lower fixing cylinder (3) are fastened together by ultrasonic welding at the fastening contact parts.

7. The ferrule buttressing assembly of claim 1, wherein: The inner fixing tube (1) is shorter than the outer tube, so that the inner fixing tube (1) is completely located inside the outer tube.

8. The ferrule buttressing assembly of claim 1, wherein: The outer edges at both ends of the outer cylinder are respectively set as rounded corner structures (11).

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