Foam roller with height-adjustable support.

Abstract

We provide a foam roller with a height-adjustable support. [Solution] The foam roller with support includes a hollow column 1 in which a hollow rod 2 is coaxially arranged inside, and cover plates 3 are attached to both ends. It includes two bushings 4 rotatably connected to the inside of the cover plates and two support bodies 5 located on the outside of the cover plates, each support body having an adjustment hole 51 and a locking groove 53 at the edge of the adjustment hole. The locking groove includes at least two recesses and at least one locking opening connecting two adjacent recesses. It also includes two locking members 6, each passing through the adjustment hole and the central hole of the bushing in sequence and screw-connected to the end of the hollow rod, which press the support body against the outside of the corresponding cover plate when tightened, thereby securing it, and the heads of the locking members are retractable into the recesses.

Description

Technical Field

[0001] The present invention relates to the technical field of exercise and fitness equipment, and more specifically, to a foam roller with an adjustable-height support.

Background Art

[0002] As a common fitness equipment, the foam roller is mainly used for muscle relaxation, fascia release, and body balance training, and is widely used in various places such as home fitness, yoga studios, and gyms. In order to prevent lateral sway during the use of the foam roller and improve stability, in the existing technology, a foam roller structure with a support has been developed. These foam rollers usually have supports provided at both ends of the hollow column body, and the foam roller is fixed to the ground by the supports. However, the existing foam rollers with supports still have technical defects and it is difficult to meet the usage needs of various users and adapt to various scenarios.

[0003] First, many of the existing foam rollers adopt a fixed connection design between the support and the hollow column body, so the height of the support is completely fixed. Therefore, it is impossible to adjust the height according to the user's height and training movements, and the user needs to adjust the posture according to the fixed height, which has a certain impact on the muscle relaxation effect.

[0004] Secondly, improved designs that allow for height adjustment and rotation of the column often result in complex structures and inconvenient operation. For example, some products use bearings to allow the foam roller body to rotate freely and are assembled and fixed with fasteners such as screws, resulting in the need for special tools for disassembly and making disassembly inconvenient. Even with products that allow for simultaneous height adjustment and rotation, the adjustment mechanism, rotating parts, and locking structure are usually independent of each other, and the user needs to use tools to manipulate multiple connection points to position them, making this process still cumbersome and preventing quick adjustments.

[0005] Therefore, providing a foam roller that is easy to operate, has a flexibly adjustable support height, can be securely locked, and allows the foam roller body to rotate freely is a problem that those skilled in the art urgently need to solve. [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] In view of the above, the present invention provides a foam roller with a height-adjustable support in order to solve the above technical problems. [Means for solving the problem]

[0007] To achieve the above objectives, this invention employs the following technical solutions.

[0008] A foam roller with a height-adjustable support, comprising a hollow column having a hollow rod coaxially arranged inside and cover plates attached to both ends, wherein the two cover plates each include a hollow column connected to both ends of the hollow column, Two bushings rotatably connected to the inside of each of the two cover plates, Two supports, each located outside the two cover plates, each support having an adjustment hole, and a locking groove being provided at the edge of the adjustment hole, the locking groove comprising at least two recessed grooves and at least one locking opening connecting two adjacent recessed grooves, The present invention further includes two locking members, each sequentially passing through the adjustment hole and the central hole of the bushing and screw-connected to the end of the hollow rod, which, when tightened, press the support against the outside of the corresponding cover plate to secure it, wherein the heads of the locking members are receptacleable into the grooves and the diameter of the heads of the locking members is greater than the diameter of the locking opening so that the heads of the locking members are not dislodged along the axial direction of the adjustment hole.

[0009] Through the technical solutions described above, this invention discloses a foam roller with a height-adjustable support. The locking member sequentially passes through the adjustment hole and the central hole of the bushing and is screw-connected to the end of the hollow rod, solving the problem of conventional products where the adjustment, locking, and rotation functions are mutually restricted. By tightening the locking member, the height of the support can be adjusted within the range of the elongated adjustment hole and stably locked in the selected position, making operation very simple. A locking groove on the edge of the adjustment hole provides a locking function. When the head of the locking member engages with the groove, the diameter of the head is larger than the width of the locking opening, effectively preventing it from coming loose during or after tightening. Since the bushing is rotatably connected to the inside of the cover plate, even after the support is securely locked, the foam roller body, consisting of the hollow column, cover plate, etc., can rotate freely and smoothly around the bushing, combining stable support and rolling massage modes. This invention ensures structural stability and ease of operation while achieving functional integration.

[0010] Preferably, in the above-described height-adjustable foam roller with support, the cover plate has a central through-hole, an axially extending annular column is fixed to the central through-hole, the hollow rod extends into the annular column, and the locking member is screw-connected to the end of the hollow rod that extends into the annular column. The annular column provides precise housing space and axial guidance for the end of the hollow rod, ensuring component alignment and improving the overall stability of the structure. It clarifies the relationship between the hollow rod and the annular column, which extends and loosely fits together, and provides structural space for the cover plate and hollow column to rotate around the hollow rod.

[0011] Preferably, in the above-described height-adjustable foam roller with support, the locking member includes a bolt and a connecting cap, wherein the threaded portion of the bolt is screw-connected to the inner wall of the end of the hollow rod, the head of the bolt engages in the groove, and the connecting cap is fixed to the outside of the bolt head. The design of the connecting cap greatly improves the convenience of adjustment, as the user can easily apply force without the need for tools, and the structure is simple and stable.

[0012] Preferably, in the above-described foam roller with height-adjustable support, the bushing is rotatably connected to the central through-hole, and its end face facing the hollow column abuts against the end face of the annular column. When the locking member is tightened, pressure is transmitted from the support through the cover plate to the end face of the annular column, and then uniformly transmitted through the load annular surface of the bushing. This avoids stress concentration, increases the axial pressure that the bushing can withstand, improves the overall rigidity and deformation resistance of the product in the supported state, and extends its service life.

[0013] Preferably, in the above-described height-adjustable foam roller with support, the adjustment hole is an elongated channel extending axially through the support. This allows the support to be locked in any position within the length range of the elongated hole, enabling continuous and fine height adjustment, and perfectly accommodating the heights of various users and the diverse needs of yoga and rehabilitation training.

[0014] Preferably, in the above-described foam roller with height-adjustable support, the locking groove has a gourd-shaped contour. This configuration provides a function to prevent it from coming off.

[0015] Preferably, in the above-described height-adjustable foam roller with a support, the support is triangular in shape, with suction cups attached to both sides of the support. By making the support triangular, a stable three-point support structure is formed, effectively preventing tipping. Because suction cups are attached to both sides of the support, the product can be firmly attracted to a smooth surface (e.g., tile or glass) through negative pressure, providing suction and fixing ability, and increasing safety during support training and balance training.

[0016] Preferably, in the above-described foam roller with height-adjustable support, an engaging portion is fixed to the suction cup, and an engaging groove is provided in the support that engages with the engaging portion. The fitting structure between the engaging portion and the engaging groove allows the suction cup to be attached and detached without the need for tools, so that the user can flexibly use the suction cup function according to the ground condition (smooth or rough surface), and when the suction cup wears out, it can be easily replaced individually, reducing maintenance costs.

[0017] Preferably, in the above-described foam roller with height-adjustable support, the hollow rod is a metal rod and the bushing is made of plastic. The metal hollow rod ensures excellent strength and bending resistance of the load-bearing frame, which forms the core of the product, thereby guaranteeing safety. The plastic bushing takes advantage of the self-lubricating, wear-resistant, easy-to-process, and low-cost properties of engineering plastics, effectively keeping costs down while ensuring smooth rotation.

[0018] Preferably, in the above-described foam roller with height-adjustable support, a massage texture is provided on the outer surface of the hollow column. [Effects of the Invention]

[0019] As can be seen from the technical solutions described above, the height-adjustable foam roller with support disclosed in this invention has the following beneficial effects compared to the prior art.

[0020] 1. In this invention, the locking member sequentially passes through the adjustment hole of the support and the central hole of the bushing, and is directly screw-connected to the end of the hollow rod, thereby integrating four main functions: height adjustment, anti-loosening and locking, final locking, and rotation of the main body. By tightening just one locking member, it is possible to adjust the height of the support, firmly lock its position, and allow the foam roller body to rotate freely and smoothly around the bushing while locked. This effectively solves the technical problems of conventional products, which are complicated to operate and difficult to balance with other functions.

[0021] 2. In this invention, by combining a triangular support and a removable suction cup, the stability of the support and the adaptability to various surfaces are ensured. By combining the materials of a metal hollow rod and a plastic bushing, smooth rotation and cost optimization are achieved while ensuring the strength of the core structure. By applying a massage texture to the surface of the hollow column, multiple functions such as stable support, flexible adjustment, smooth rotation, and efficient massage throughout the product are realized, greatly improving the practicality, safety, and user experience of the product.

Brief Description of the Drawings

[0022] To more clearly explain the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are limited to the embodiments of the present invention, and those skilled in the art can also derive other drawings based on the provided drawings without creative effort. [Figure 1] It is a structural schematic diagram of a foam roller with a height-adjustable support according to the present invention. [Figure 2] It is an exploded view of a foam roller with a height-adjustable support according to the present invention. [Figure 3] It is a structural schematic diagram of the support according to the present invention. [Figure 4] It is a structural schematic diagram of the cover plate according to the present invention. [Figure 5] It is a structural schematic diagram of the cover plate from another angle according to the present invention. [Figure 6] It is a structural schematic diagram of the bushing according to the present invention. [Figure 7] It is a structural schematic diagram of the support from another angle according to the present invention. [Figure 8] It is a structural schematic diagram of the suction cup according to the present invention.

Modes for Carrying Out the Invention

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the drawings of embodiments of the present invention. Clearly, the embodiments described herein are only some, and not all, embodiments of the present invention. All other embodiments that can be obtained by those skilled in the art without creative effort based on embodiments of the present invention are also covered by the present invention.

[0024] As shown in Figures 1 and 2, an embodiment of the present invention is a hollow column 1 in which a hollow rod 2 is coaxially arranged inside and cover plates 3 are attached to both ends, the two cover plates 3 being connected to both ends of the hollow column 1, and the foam roller with a height-adjustable support including the hollow column 1. Two bushings 4 are rotatably connected to the inside of each of the two cover plates 3, Two support members 5, each located outside of two cover plates 3, each support member 5 has an adjustment hole 51, and a locking groove 52 is provided at the edge of the adjustment hole 51, the locking groove 52 including at least two recessed grooves 521 and at least one locking opening 522 connecting two adjacent recessed grooves 521, Disclosed is a height-adjustable foam roller with a support, further comprising two locking members 6, each sequentially passing through an adjustment hole 51 and the central hole of a bushing 4 and screw-connected to the end of a hollow rod, thereby pressing and securing the support 5 to the outside of the corresponding cover plate 3 when tightened, wherein the heads of the locking members 6 can engage with grooves 521, and the diameter of the heads of the locking members 6 is greater than the diameter of the locking opening 522 so that the heads of the locking members 6 do not come off along the axial direction of the adjustment hole 51.

[0025] Specifically, the hollow column 1 is manufactured from a high-density foam material, and its outer surface is treated with different massage textures (see Figure 1) to enhance the massage and relaxation effects. As shown in Figure 1, its outer surface is formed with various vertical striped surfaces 11, flat surfaces 12, horizontal striped surfaces 13, and petal-shaped surfaces 14.

[0026] In some specific embodiments, a central through-hole 31 is made in the cover plate 3, an annular column 32 extending in the axial direction is fixed to the central through-hole 31, a hollow rod 2 extends into the annular column 32, and a locking member 6 is screw-connected to the end of the hollow rod 2 that extends into the annular column 32.

[0027] In one specific example, the annular column 32 is provided with multiple radially convex ribs arranged in an annular pattern.

[0028] More specifically, the locking member 6 includes a bolt 61 and a connecting cap 62, the threaded portion of the bolt 61 is screw-connected to the inner wall of the end of the hollow rod 2, the head of the bolt 61 is engaged in the groove 521, and the connecting cap 62 is fixed to the outside of the head of the bolt 61.

[0029] In some other embodiments, the bushing 4 is rotatably connected to the central through-hole 31, and its end face facing the hollow column 1 abuts against the end face of the annular column 32.

[0030] In a specific embodiment, the adjustment hole 51 is an elongated channel extending in the axial direction of the support 5.

[0031] In one specific example, the locking groove 52 has a gourd-shaped contour.

[0032] More specifically, the support 5 is a triangular support, and suction cups 7 are attached to both sides of the support 5.

[0033] In some specific examples, an engaging portion 71 is fixed to the suction cup 7, and an engaging groove 53 is provided in the support body 5 that engages with the engaging portion 71.

[0034] In some other embodiments, the hollow rod 2 is a metal rod and the bushing 4 is made of plastic.

[0035] In a specific embodiment, a massage texture is applied to the outer surface of the hollow column 1.

[0036] Embodiments of this invention are as follows:

[0037] If the user needs to adjust the height of the support 5, they first grasp the connecting cap 62 and loosen the locking member 6 counterclockwise, which separates the head of the bolt 61 from the groove 521 and releases the pressing force between the support 5 and the cover plate 3. At this time, the support 5 is able to move up and down along the extending direction of the adjustment hole 51 (i.e., slide along its axial direction), while the foam roller body, consisting of the hollow rod 2, cover plate 3, hollow column 1, etc., remains fixed. The user can adjust the support 5 to the appropriate height according to their height and training needs.

[0038] When properly adjusted, the bolt 61 is tightened in the reverse direction. The threaded portion of the bolt 61 is further screwed into the threaded hole at the end of the hollow rod 2. The bushing 4 presses the support 5 against the outside of the cover plate 3. Also, the end face of the bushing 4 abuts against the end face of the annular column 32, ensuring stable force transmission. The head of the bolt 61 engages with the groove 521, and since the locking groove 52 is gourd-shaped and the diameter of the head of the locking member 6 is larger than the width of the locking opening 522, temporary retention and positioning are possible when not tightened, making it convenient for one-handed operation. At the same time, even after locking, the hollow column 1 does not slide downward due to pressure, ensuring structural stability. After tightening, the support 5 is firmly fixed at its current height and cannot move along the adjustment hole 51.

[0039] Even in this locked state, the foam roller body, consisting of the hollow column 1, cover plate 3, and annular column 32, can rotate freely and smoothly around the bushing 4. The user can lie face down or face up on the hollow column 1 and perform a rolling massage using the massage texture on its surface (e.g., vertical striped surface 11, flat surface 12, horizontal striped surface 13, petal-shaped surface 14) to achieve muscle relaxation and fascia release.

[0040] If the ground is a smooth surface (e.g., tiles, flooring, or wall), the user can attach the suction cup 7 to the support 5 by engaging the engaging portion 71 of the suction cup 7 with the engaging grooves 53 on both sides of the support 5. When the support 5 is pressed down to place the product, the suction cup 7 adheres tightly to the ground and is fixed in place, further improving stability during use. When using on a rough surface, the suction cup 7 can be removed and the support structure of the triangular support 5 can be used directly.

[0041] The above procedure allows the user to adjust the height and lock the device simply by tightening the locking member 6, requiring no additional tools and thus making operation easy. Because the adjustment range extends across the entire length of the adjustment hole 51, it can accommodate users of various heights and the diverse support required for yoga and rehabilitation training movements. The length of the adjustment hole 51 can be determined according to actual needs, and the number of grooves 521 can also be determined according to the length of the adjustment hole 51. A locking opening 522 is connected to every two adjacent grooves 521.

[0042] Each embodiment in this specification is described step by step. Each embodiment is described with an emphasis on the differences from other embodiments, while similarities should be referenced to one another. The descriptions of the apparatus disclosed in the embodiments are relatively brief, as they correspond to the methods disclosed in the embodiments. For relevant parts, refer to the method description section.

[0043] The above description of the disclosed embodiments will enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Accordingly, the present invention is not limited to these embodiments shown herein, but rather follows the broadest scope that is consistent with the principles and novelty features disclosed herein. [Explanation of Symbols]

[0044] 1 hollow column 11 Vertical striped surface 12 flat surface 13 Horizontal striped surface 14 Petal-like surface 2 Hollow rods 3 Cover plate 31 Center through hole 32 Ring Pillars 4 Bushing 5 Support 51 Adjustment hole 52 Locking groove 521 Groove 522 Locking port 53 Engagement groove 6 Locking member 61 volts 62 Connection cap 7 sucker 71 Engaging part

Claims

1. A hollow column (1) having a hollow rod (2) coaxially arranged inside and cover plates (3) attached to both ends, wherein the two cover plates (3) each include a hollow column (1) which is connected to both ends of the hollow column (1), a height-adjustable foam roller with a support, Two bushings (4) are rotatably connected to the inside of each of the two cover plates (3), Two support bodies (5) located outside each of the two cover plates (3), each support body (5) having an adjustment hole (51), and a locking groove (52) on the edge of the adjustment hole (51), the locking groove (52) including at least two recessed grooves (521) and at least one locking opening (522) connecting two adjacent recessed grooves (521), A height-adjustable foam roller with a support, further comprising: two locking members (6) which, when tightened, press and secure the support (5) to the outside of the corresponding cover plate (3) by sequentially passing through the adjustment hole (51) and the central hole of the bushing (4) and being screw-connected to the end of the hollow rod, wherein the heads of the locking members (6) are receptacleable into the groove (521) and the diameter of the heads of the locking members (6) is greater than the diameter of the locking opening (522) so that the heads of the locking members (6) are not disengaged along the axial direction of the adjustment hole (51);

2. The height-adjustable foam roller with a support according to claim 1, characterized in that the cover plate (3) has a central through hole (31), an annular column (32) extending in the axial direction is fixed to the central through hole (31), the hollow rod (2) extends into the annular column (32), and the locking member (6) is screw-connected to the end of the hollow rod (2) that extends into the annular column (32).

3. The height-adjustable foam roller with support according to claim 2, wherein the locking member (6) includes a bolt (61) and a connecting cap (62), the threaded portion of the bolt (61) is screw-connected to the inner wall of the end of the hollow rod (2), the head of the bolt (61) is engaged in the groove (521), and the connecting cap (62) is fixed to the outside of the head of the bolt (61).

4. The height-adjustable foam roller with a support according to claim 3, characterized in that the bushing (4) is rotatably connected to the central through hole (31), and the end face facing the hollow column (1) abuts against the end face of the annular column (32).

5. The height-adjustable foam roller with support according to claim 1, characterized in that the adjustment hole (51) is an elongated channel extending in the axial direction of the support (5).

6. The height-adjustable foam roller with support according to claim 1, characterized in that the locking groove (52) has a gourd-shaped outline.

7. The height-adjustable foam roller with a support according to claim 1, characterized in that the support (5) is triangular in shape, and suction cups (7) are attached to both sides of the support (5).

8. The height-adjustable foam roller with a support according to claim 7, characterized in that an engaging portion (71) is fixed to the suction cup (7), and an engaging groove (53) that engages with the engaging portion (71) is provided in the support (5).

9. The height-adjustable foam roller with support according to claim 1, characterized in that the hollow rod (2) is a metal rod and the bushing (4) is made of plastic.

10. The height-adjustable foam roller with support according to claim 1, characterized in that a massage texture is provided on the outer surface of the hollow column (1).

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