Sit-up assisting device and fitness massage aid
By using a dual suction cup linkage design and replaceable protective or massage covers, the problems of unstable fixation and easy failure of existing sit-up assist devices have been solved, resulting in a more stable and multifunctional sit-up assist device that improves the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YONGKANG MAIKAWEI TECH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-07-24
Smart Images

Figure CN224540895U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of sports and fitness equipment, specifically relating to a sit-up assist device and a fitness massage aid. Background Technology
[0002] With the increasing awareness of fitness among people, various fitness equipment on the market has become widely popular. For example, sit-up assist devices typically have a structure as proposed in utility model patent CN219983830U, including a base with a suction cup at the bottom and a fixed rod installed on the base for auxiliary support. Although it can assist users in performing sit-ups, its fixed ability is limited because it only has one suction cup at the bottom, and the suction cup is prone to failure after long-term use. Once it fails, the entire assist device will not be able to be fixed, which may cause danger to the user. Summary of the Invention
[0003] To solve the above problems, this utility model provides a securely fixed sit-up assist device and a fitness massage aid.
[0004] The present invention adopts the following technical solution:
[0005] A sit-up assist device includes a base comprising a left base and a right base; a support portion disposed between the left base and the right base; a fixing portion comprising two suction cups respectively mounted on the bottom of the left base and the right base, the suction cups having a relaxed state and a fixed state; and a linkage portion connecting the two suction cups, capable of simultaneously switching the two suction cups between the relaxed state and the fixed state by rotating the linkage portion.
[0006] Furthermore, the sit-up assist device proposed in this utility model also has the following features: the linkage part has: two rotating seats, each of which corresponds to one of the two suction cups; a connecting rod connecting the at least two rotating seats; the suction cup has: a suction cup body, a suction cup connecting rod, one end of which is integrally connected to the suction cup body and the other end of which extends into the rotating seat and engages with it, and a suction cup rotating shaft that rotatably connects the suction cup connecting rod to the rotating seat.
[0007] Furthermore, the sit-up assist device proposed in this utility model also has the following feature: the upper surface of the base is provided with a placement groove for accommodating the linkage part; when the suction cup is in the suction state, the linkage part is placed in the placement groove, and the upper surface of the rotating seat is not higher than the upper surface of the base.
[0008] Furthermore, the sit-up assist device proposed in this utility model also has the following feature: a suction cup spring is installed on the suction cup, and a spring seat for installing the suction cup spring is provided in the base. One end of the suction cup spring is sleeved on the spring seat, and the other end abuts against the side of the suction cup body facing the spring seat.
[0009] Furthermore, the sit-up assist device proposed in this utility model also has the following features: the base includes a base body and a pad; the center of the base body is recessed downward to form a pad groove for accommodating the pad; the pad groove is connected to the placement groove; and the pad is provided with an avoidance groove to avoid the linkage part.
[0010] Furthermore, the sit-up assist device proposed in this utility model also has the following features: the support part has: a movable rod, rotatably mounted on the base; a support rod, vertically arranged at the end of the movable rod away from the base; and a locking assembly, disposed between the movable rod and the base, so that the movable rod has a locked state that keeps it fixed relative to the base and an unlocked state that moves relative to the base.
[0011] Furthermore, the sit-up assist device proposed in this utility model also has the following features: the locking assembly includes a locking pin, a return spring, and a driving block; a recessed groove is formed between the left and right bases to accommodate the movable rod; a locking hole is provided at the bottom of the groove; a through hole is provided at the bottom of the movable rod for the locking pin to extend out; the locking pin is movably disposed within the movable rod; one end of the locking pin is provided with the return spring, and the other end can extend out of the through hole and into the locking hole; an adjustment hole is provided on the rear side of the movable rod; the inner end of the driving block is engaged with the locking pin, and the outer end extends out of the adjustment hole; by moving the driving block, the locking pin is moved, so that the movable rod switches between the unlocked state and the locked state.
[0012] Furthermore, the sit-up assist device proposed in this utility model also has the following feature: a protective sleeve or massage sleeve is fitted on the support rod.
[0013] Furthermore, the sit-up assist device proposed in this utility model also has the following features: the movable rod is an adjusting rod, and has: a main tube with at least two adjusting through holes; an adjusting tube with a positioning hole and connected to the support rod; an adjusting member disposed between the main tube and the adjusting tube so that the adjusting tube can be adjusted and installed on the main tube; wherein, the adjusting member is a V-shaped spring or a U-shaped spring, one end of which is fixed to the adjusting tube, and the other end has a positioning bead that extends out of the positioning hole and into the adjusting through hole; a fixing shell is sleeved on the outer periphery of the middle part of the support rod, and the support rod is connected to the adjusting tube through the fixing shell.
[0014] Furthermore, the sit-up assist device proposed in this utility model also has the following feature: a display screen is provided on one side of the fixed shell, and a bracket for placing a mobile phone, camera or tablet is rotatably installed on the other side.
[0015] This utility model also proposes a fitness massage aid, characterized by: a base comprising a left base and a right base; a support portion disposed between the left base and the right base; a fixing portion comprising two suction cups respectively mounted on the bottom of the left base and the right base, the suction cups having a relaxed state and a fixed state; a linkage portion connecting the at least two suction cups, the linkage portion being rotatable relative to the suction cups to drive the at least two suction cups to simultaneously switch between the relaxed state and the fixed state; and a protective sleeve and a massage sleeve; wherein, the protective sleeve and the massage sleeve are optionally mounted on the support portion.
[0016] Functions and effects of utility models
[0017] The sit-up assist device proposed in this utility model has a fixing part containing two suction cups, which greatly enhances the suction force when fixing and improves the firmness and stability. It is also equipped with a linkage part, which connects the two suction cups and can drive the two suction cups to switch between a relaxed state and a fixed state at the same time. That is, all suction cups are controlled synchronously through a linkage part, making it very convenient and quick to fix and fold up the assist device.
[0018] In addition, the fitness massage aid proposed in this utility model also has a protective sleeve and a massage sleeve that can be selectively installed on the support part, so that the aid not only has the function of assisting sit-ups, but also has a massage function, integrating multiple functions into one, allowing users to have a proper massage after exercise and improve their experience. Attached Figure Description
[0019] Figure 1 This is a simplified structural diagram of Embodiment 1 of this utility model.
[0020] Figure 2 This is a cross-sectional view of the structure at the rotating seat in Embodiment 1 of this utility model.
[0021] Figure 3 This is a simplified structural diagram of the linkage mechanism of this utility model.
[0022] Figure 4 This is a simplified structural diagram of the base of this utility model.
[0023] Figure 5 This is an exploded view of the structure of the base of this utility model.
[0024] Figure 6 This is a cross-sectional view of the structure at the movable rod in Embodiment 1 of this utility model.
[0025] Figure 7 This is a simplified structural diagram of Embodiment 1 of this utility model from the bottom view.
[0026] Figure 8 This is a simplified structural diagram of Embodiment 2 of this utility model.
[0027] Reference numerals: Sit-up assist device 10, base 1, left base 1a, right base 1b, placement slot 11, rotating placement slot 111, connecting placement slot 112, spring seat 12, base body 13, pad 14, pad groove 15, locking hole 151, suction cup 2, suction cup body 21, suction cup connecting rod 22, suction cup rotating shaft 23, suction cup spring 24, linkage part 3, rotating seat 31, connecting rod 32, support part 4, movable rod 41, through hole 411, adjustment hole 412, main pipe 413, adjustment through hole 4131, adjustment tube 414, positioning hole 4141, adjustment component 415, positioning bead 4151, support rod 42, fixed shell 421, end cap 422, rotating shaft 43, locking pin 51, return spring 52, drive block 53, protective sleeve 61, massage sleeve 62, massage ball 621, massage point 622, bracket 63, display screen 64. Detailed Implementation
[0028] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following describes the sit-up assist device and fitness massage aid of this utility model in detail with reference to the embodiments and accompanying drawings.
[0029] <Example 1>
[0030] This embodiment proposes a sit-up assist device 10 to provide support for the user's feet during sit-up exercises. Figure 1As shown, the sit-up assist device 10 includes a base 1, a fixing part, and a linkage part 3. The base 1 has a left base 1a and a right base 1b symmetrically arranged, and a support part 4 is provided in the middle of the base 1 (between the left base 1a and the right base 1b). The fixing part includes two suction cups 2, which are respectively installed on the bottom of the left base 1a and the right base 1b. Both suction cups 2 have a relaxed state and a fixed state. When both suction cups 2 are in the relaxed state, the entire sit-up assist device 10 can be detached from the ground or other fixed surfaces. When one or both suction cups 2 are in the fixed state, the sit-up assist device 10 can be attracted to the fixed surface, thereby assisting the user in performing sit-up exercises. However, compared to the fixed state, the stability is greater when both suction cups 2 are attracted simultaneously. The linkage part 3 can connect to two suction cups 2, and the linkage part 3 and the two suction cups 2 are rotatably connected. Therefore, when using it, the user can rotate the linkage part 3 to drive the two suction cups to switch between the relaxed state and the fixed state at the same time, so that the two suction cups can be fixed or relaxed synchronously, which is convenient for the user to fix and put away.
[0031] The rotating structure between the linkage and the suction cup 2 is as follows: Figure 2 and Figure 3 As shown, the linkage 3 has two rotating seats 31, which are connected as one unit by a connecting rod 32. Each of the two rotating seats 31 is rotatably connected to one of the two suction cups 2, and the connection method between the two rotating seats 31 and the two suction cups 2 is the same. Here, we will describe the rotatable connection on one side in detail. The suction cup 2 has a suction cup body 21, a suction cup connecting rod 22, and a suction cup rotating shaft 23. One end of the suction cup connecting rod 22 is integrally connected to the suction cup body 21, and the other end extends into the rotating seat 31. The suction cup connecting rod 22 is rotatably connected to the rotating seat 31 via the suction cup rotating shaft 23. Figure 2 As shown, in this embodiment, the suction cup shaft 23 is an independently set pin that radially penetrates the suction cup connecting rod 22. Both ends of the suction cup shaft 23 extend out from the ends of the suction cup connecting rod 22 and connect to corresponding holes on the side wall of the rotating seat 31, thereby connecting the suction cup connecting rod 22 to the rotating seat 31. In practice, the suction cup shaft 23 can possess a certain degree of flexibility or deformability, allowing the rotation of the rotating seat 31 to be converted into stretching or pressing of the suction cup connecting rod 22 when the linkage part 3 is rotated, enabling the suction cup to switch between a relaxed state and a fixed state. Furthermore, in other embodiments, the suction cup shaft 23 can also be an integrally formed shaft on both sides of the suction cup connecting rod 22, extending into corresponding holes on the side wall of the rotating seat 31, thus achieving the same function.
[0032] like Figure 2As shown, a suction cup spring 24 is also installed on the suction cup 2. The base 1 has a spring seat 12 for installing the suction cup spring 24. One end of the suction cup spring 24 is sleeved on the spring seat 12, and the other end abuts against the side of the suction cup body 21 facing the spring seat 12. Adding a suction cup spring 24 can improve the effect of the suction cup and also facilitate the adsorption and release of the suction cup.
[0033] like Figure 4 As shown, the upper surface of the base 1 has a placement groove 11 for accommodating the linkage part 3. The placement groove 11 has a shape adapted to the linkage part 3 and includes two rotating placement grooves 111 corresponding to the two rotating seats 31 respectively, and a connecting placement groove 112 corresponding to the connecting rod 32 and communicating with both rotating placement grooves 111. When the suction cup 2 is in the suction state, the linkage part 3 is placed in the placement groove 11, and the upper surface of the rotating seat 31 is not higher than the upper surface of the base 1, so that the rotating seat 31 will not bulge out, so that the user will not feel uncomfortable when using it, thus improving the user experience.
[0034] In this embodiment, as Figure 5 As shown, the base 1 includes a separate base body 13 and a pad 14. The center of the base body 13 is recessed to form a pad groove 15 for accommodating the pad 14. The pad groove 15 is connected to the placement groove 11, and the pad 14 has a clearance groove 141 for the clearance linkage part 3. The pad 14 can be fixed in the pad groove 15 by adhesive or other means. At the same time, the pad 14 can also be detachably fixed in the pad groove 15 by means of clips or other means.
[0035] like Figure 1 and Figure 6 As shown, the support part 4 has a movable rod 41, a support rod 42 and a locking assembly. The bottom of the movable rod 41 is rotatably mounted in the middle of the base 1 via a pivot 43. The support rod 42 is arranged vertically at the end of the movable rod 41 away from the base 1 and is positioned between the movable rod 41 and the base 1. The locking assembly enables the movable rod 41 to have a locked state that keeps it fixed relative to the base 1 and an unlocked state that allows it to move relative to the base 1. Specifically, the locking assembly includes a locking pin 51, a return spring 52, and a drive block 53. The base 1 is recessed in the middle to form a movable groove 15 for accommodating the movable rod 41. At least one locking hole 151 is provided at the bottom of the movable groove 15. A through hole 411 for the locking pin 51 to extend from the bottom of the movable rod 41 is provided. The locking pin 51 is movably disposed within the movable rod 41. One end of the locking pin 51 is provided with a return spring 52, and the other end extends out of the through hole 411 and into the locking hole 151. An adjustment hole 412 is provided on the rear side of the movable rod 41. The inner end of the drive block 53 engages with the locking pin 51, and the outer end extends out of the adjustment hole 412. By moving the drive block 53, the locking pin 51 is driven to move linearly, thereby switching the movable rod 41 between the unlocked and locked states. Figure 6In one of the locked states shown, the locking pin 51, under the action of the return spring 52, extends one end out of the through hole 411 and into the locking hole 151, keeping the movable rod 41 in a vertical position. When unlocking is required, simply move the drive block 53 upward to move the locking pin 51 upward and away from the locking hole 151. At this time, the movable rod 41 is unlocked and can be rotated.
[0036] In this embodiment, as Figure 6 As shown, the bottom of the movable rod 41 is semi-circular, and the inner end of the corresponding movable groove 15 is arc-shaped. There are two locking holes 151. During use, the user can unlock the movable rod 41 and rotate it to lock it in either locking hole 151. Different locking holes 151 correspond to different states of the movable rod 41, allowing it to form different angles relative to the base, thus providing wider adaptability. In practice, more locking holes can be provided to achieve more different angle adjustment modes.
[0037] In this embodiment, the movable rod 41 can also be an adjusting rod, such as... Figure 6 As shown, the adjusting rod has a main pipe 413, an adjusting tube 414, and an adjusting element 415. The main pipe 413 has at least two adjusting through holes 4131. The adjusting tube 414 has a positioning hole 4141 and is connected to the support rod 42. The adjusting element 415 is disposed between the main pipe 413 and the adjusting tube 414 so that the adjusting tube 414 can be adjusted and mounted on the main pipe 413. The adjusting element 415 is a V-shaped or U-shaped spring piece, one end of which is fixed inside the adjusting tube 414, and the other end has a positioning bead 4151 that extends out of the positioning hole 4141 and into the adjusting through hole 4131. By pressing the positioning bead 4151 to move it away from the current adjusting through hole 4131, and then pulling the support rod 42, the height of the adjusting tube 414 can be adjusted. Under the elastic drive, the positioning bead 4151 can extend into another adjusting through hole 4131, thereby realizing the height adjustment of the adjusting tube 414. Users can adjust it themselves as needed, which is very convenient.
[0038] like Figure 2 and Figure 6 As shown, the support rod 42 is a hollow round rod. A fixing shell 421 is fitted around the outer periphery of the middle part of the hollow round rod. The support rod 42 is connected to the adjusting tube 414 through the fixing shell 421 (the fixing shell can be separately connected to the adjusting tube 414 or integrally formed). End caps 422 can be detachably installed at both ends of the support rod 42. A pair of protective sleeves 61 are fitted on the support rod 42. The protective sleeves 61 can be removed by removing the end caps 422.
[0039] One side of the fixed housing 421 (usually the side facing the user) is equipped with a display screen 64, which can be used to display data such as counting. The other side of the fixed housing 421 is rotatably mounted with a bracket 63 for placing a counter, display screen, mobile phone, or camera, making it convenient for users to place mobile phones or other devices. The rotatable bracket can also be rotated and folded away when not in use (e.g., Figure 1 or Figure 6 (The state shown).
[0040] <Example 2>
[0041] This embodiment is basically the same as Embodiment 1 above, except that the sheath 61 on the support rod 42 is replaced with a massage sleeve 62, as shown below. Figure 8 As shown, in this embodiment, the massage sleeve 62 consists of several spherical massage balls 621, each with several massage points 622 distributed on its surface. When using this embodiment, the movable rod 41 can be rotated to a position approximately level with or at an acute angle to the base. After securing it, the user can place their foot above the massage balls 621 and rub the massage balls 621. The massage balls 621 massage and relax the feet during their rolling motion.
[0042] <Example 3>
[0043] This embodiment proposes a fitness massage aid that can both support the user's feet during sit-ups and provide foot massage. Specifically, it includes: a base 1 with a support 4 in the middle; a fixing part installed at the bottom of the base 1, containing at least two suction cups 2, each having a relaxed state and a fixed state; a linkage 3 connecting the at least two suction cups 2, and the linkage 3 and the suction cups 2 can rotate relative to each other to simultaneously switch between the relaxed and fixed states; and a protective sleeve 61 and a massage sleeve 62. Either the protective sleeve 61 or the massage sleeve 62 is selectively installed on the support 4. When the protective sleeve 61 is installed on the support 4, it forms the sit-up aid 10 as described in Embodiment 1; when foot massage is needed, the protective sleeve 61 can be removed from the support 4 and the massage sleeve 62 replaced, forming the massage and relaxation aid as described in Embodiment 2. This embodiment achieves multiple functions in one device, enhancing the user experience.
[0044] The above embodiments are merely illustrative of specific implementations of the present invention, and the present invention is not limited to the scope of the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sit-up assist device, characterized in that, include: The base consists of a left base and a right base; A support portion is disposed between the left base and the right base; The fixing part includes two suction cups, which are respectively installed on the bottom of the left base and the right base, and the suction cups have a relaxed state and a fixed state. as well as The linkage unit connects the two suction cups and can drive the two suction cups to switch simultaneously between the relaxed state and the fixed suction state by rotating the linkage unit.
2. The sit-up assist device according to claim 1, characterized in that, The linkage unit has: Two rotating seats, each corresponding to one of the two suction cups; A connecting rod connects the two rotating seats; The suction cup has: The suction cup itself; A suction cup connecting rod, one end of which is integrally connected to the suction cup body, and the other end of which is combined with the rotating base; and The suction cup shaft rotatably connects the suction cup connecting rod to the rotating base.
3. The sit-up assist device according to claim 2, characterized in that, The upper surface of the base is provided with a placement groove for accommodating the linkage part. When the suction cup is in the suction state, the linkage part is placed in the placement groove, and the upper surface of the rotating seat is not higher than the upper surface of the base.
4. The sit-up assist device according to claim 2, characterized in that, The suction cup is also equipped with a suction cup spring. The base is provided with a spring seat for installing the suction cup spring. One end of the suction cup spring is sleeved on the spring seat, and the other end abuts against the side of the suction cup body facing the spring seat.
5. The sit-up assist device according to claim 3, characterized in that, The base includes a base body and a pad. The base body is recessed in the middle to form a groove for accommodating the pad. The groove is connected to the placement groove, and the pad is provided with a clearance groove to avoid the linkage part.
6. The sit-up assist device according to claim 1, 2, 3, or 4, characterized in that, The support portion has: The movable rod is rotatably mounted on the base; A support rod, vertically arranged at the end of the movable rod away from the base; and A locking component is disposed between the movable rod and the base, so that the movable rod has a locked state that remains fixed relative to the base and an unlocked state that moves relative to the base.
7. The sit-up assist device according to claim 6, characterized in that, The locking assembly includes a locking pin, a return spring, and a drive block. The left and right bases are recessed downwards to form a movable groove for accommodating the movable rod. At least one locking hole is provided at the bottom of the movable groove. A through hole for the locking pin to extend from the bottom of the movable rod is provided. The locking pin is movably disposed within the movable rod. One end of the locking pin is equipped with the return spring, and the other end extends out of the through hole and into the locking hole. The movable rod has an adjustment hole on its rear side. The inner end of the drive block is engaged with the locking pin, and the outer end extends out of the adjustment hole. By moving the drive block, the locking pin is moved so that the movable rod switches between the unlocked state and the locked state.
8. The sit-up assist device according to claim 6, characterized in that, The movable rod is an adjusting rod and has the following characteristics: The main pipe has at least two adjustment through holes; The adjusting tube has a positioning hole and is connected to the support rod; and An adjusting element is disposed between the main pipe and the adjusting tube to allow the adjusting tube to be adjustablely mounted on the main pipe; The adjusting element is a V-shaped or U-shaped spring, with one end fixed to the adjusting tube and the other end having a positioning bead that extends out of the positioning hole and into the adjusting through hole. A fixed shell is fitted around the outer periphery of the middle part of the support rod, and the support rod is connected to the adjusting tube through the fixed shell.
9. The sit-up assist device according to claim 8, characterized in that, The support rod is fitted with a protective sleeve or massage sleeve; one side of the fixed shell is equipped with a display screen, and the other side is rotatably mounted with a bracket for placing a mobile phone, camera or tablet.
10. A fitness massage aid, characterized in that, include: The base consists of a left base and a right base; A support portion is disposed between the left base and the right base; The fixing part includes two suction cups, which are respectively installed on the bottom of the left base and the right base, and the suction cups have a relaxed state and a fixed state. A linkage unit connects at least two suction cups, and the linkage unit and the suction cups are rotatable relative to each other to drive at least two suction cups to switch simultaneously between the relaxed state and the fixed state; as well as Protective sleeves and massage sleeves; The sheath and the massage sleeve are optionally installed on the support portion.