Multifunctional sit-up board
The multi-functional sit-up board design enables various exercise training methods such as sit-ups and mountain climbing, solving the problem of the limited training methods of existing sit-up boards and meeting the diverse fitness needs of fitness enthusiasts.
Patent Information
- Application Number
- CN202511422051.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2025-11-28
AI Technical Summary
The existing sit-up boards offer limited training options and cannot meet people's increasingly diverse fitness needs.
Design a multifunctional sit-up board that uses a telescopic rod assembly, elastic ropes, and an adjustable-angle human support rod to enable various exercise training modes such as sit-ups and mountain climbing.
It enriches the variety of sports training, meets the needs of different fitness enthusiasts, and provides a variety of exercise options including sit-ups, mountain climbers, crunches, and shoulder stretches.
Smart Images

Figure CN121016142A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of fitness equipment technology, specifically to a multifunctional sit-up board. Background Technology
[0002] A sit-up board, also known as a sit-up bench or ab board, is an incline machine with a backrest, support, and footrest rollers. It's a classic fitness machine designed to strengthen the core abdominal muscles. It's an optimization of the traditional sit-up movement, making training more efficient and standardized by fixing the lower limbs and adjusting the incline. It's widely applicable in homes and gyms. The main feature of the sit-up board is its adjustable backrest angle, which changes the training difficulty and targets different muscle groups.
[0003] Currently, people mainly use sit-up benches to perform sit-ups. However, when using sit-up benches, people can only use this equipment to complete a single form of exercise, which cannot meet people's increasingly diverse fitness needs. Summary of the Invention
[0004] To address the aforementioned technical problems, this invention discloses a multifunctional sit-up board, which improves upon the fact that when people use this type of sit-up board for training, they can only use these devices to complete a single form of exercise training, which cannot meet people's increasingly diverse fitness needs.
[0005] To achieve the above objectives, this application provides a multifunctional sit-up board, which includes a human support section and two footrests;
[0006] The human body support is provided with two support rods that correspond one-to-one with the two pedals; each pedal and its corresponding support rod together form a telescopic rod group structure, and each pedal can be retracted into the support rod corresponding to each pedal.
[0007] In one possible embodiment, the sit-up board is in a first working state when each pedal can freely extend and retract within the support rod corresponding to each pedal; and in a second working state when each pedal is retracted into the support rod corresponding to each pedal.
[0008] In one possible embodiment, each pedal and its corresponding support rod are hollow connecting rods, and an elastic rope is provided inside each pedal and its corresponding support rod.
[0009] In one possible embodiment, one end of the elastic cord extends out of the foot bar, and the other end of the elastic cord extends out of the support rod.
[0010] In one possible embodiment, both ends of the elastic pull rope are provided with handle connecting parts;
[0011] The handle connector is detachably connected to the elastic pull rope.
[0012] In one possible embodiment, a locking part is provided between each pedal and the support rod corresponding to each pedal;
[0013] The locking part is used to switch the connection state between each pedal and the corresponding support rod; the connection state between each pedal and the corresponding support rod includes a telescopic locking state and a free telescopic state.
[0014] In one possible embodiment, each pedal is coaxially arranged with the corresponding support rod.
[0015] One end of the pedal is slidably disposed inside the support rod corresponding to each pedal, and the other end of the pedal is provided with a foot pedal.
[0016] In one possible embodiment, the sit-up board also includes a foot hook bar;
[0017] Each pedal is provided with a connecting part; the connecting parts of the two pedals are respectively connected to the two ends of the hook rod.
[0018] In one possible embodiment, each pedal has at least one rolling element at its bottom.
[0019] In one possible embodiment, the sit-up board also includes two human support bars;
[0020] The two human support rods correspond to the two foot pedals respectively, and each human support rod can be connected to the foot pedal corresponding to each human support rod at at least two connection angles;
[0021] Each human body support rod includes a rotating sub-rod and a supporting sub-rod; the first end of each rotating sub-rod is set on the supporting rod corresponding to each rotating sub-rod; each supporting sub-rod is folded onto the second end of the rotating sub-rod;
[0022] During the use of the sit-up board, the human support rod can elastically deflect to one side under external pressure.
[0023] In one possible embodiment, the support rod is horizontally positioned during the rotation of the human body support rod;
[0024] A support pad is provided on the outer surface of the support rod.
[0025] The technical solution provided in this application has the following technical effects:
[0026] In the embodiments of this application, each step bar can be freely extended and retracted within its corresponding support rod, allowing people to perform mountain climbing exercises using the sit-up board. Alternatively, each step bar can be retracted into its corresponding support rod, enabling people to perform sit-ups using the sit-up board. Thus, people can complete various exercise training programs, including sit-ups and mountain climbing, using the sit-up board to meet diverse fitness needs. Attached Figure Description
[0027] To more clearly illustrate the technical solutions and advantages in the embodiments of this application 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 only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a structural schematic diagram of a multifunctional sit-up board provided in an embodiment of this application;
[0029] Figure 2 This is a schematic diagram of a multifunctional sit-up board with a hook rod installed, provided in an embodiment of this application.
[0030] Figure 3 This application provides a multifunctional sit-up board. Figure 2 A magnified view of a portion of plane A in the middle;
[0031] Figure 4 This is a schematic diagram of a multifunctional sit-up board with an elastic pull rope installed, as provided in an embodiment of this application.
[0032] The labels in the diagram are explained as follows:
[0033] 1-Human support part; 11-Support rod; 12-Support pad; 13-Human support rod; 131-Rotating branch rod; 132-Support branch rod; 2-Step rod; 21-Pedal; 211-Connecting part; 22-Elastic pull rope; 221-Handle connecting part; 23-Locking part; 3-Hook rod. Detailed Implementation
[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0035] It should be noted that the term "an embodiment" or "embodiment" in the specification of the embodiments of this application refers to a specific feature, structure, or characteristic that can be included in at least one implementation of this application. It should be understood that in the specification, claims, and accompanying drawings of the embodiments of this application, the terms "upper," "lower," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application 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 application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0036] Please see Figures 1 to 3 This application provides a multifunctional sit-up board, which includes a human support part 1 and two footrests 2. The human support part 1 can be a structure that can support the human body for sit-up exercise training, and the footrests 2 can be a structure that allows people to step on them or push them with their hands for other exercise training.
[0037] In one possible embodiment, the human body support 1 is provided with two support rods 11 corresponding one-to-one with the two foot pedals 2. The support rods 11 can be placed on the ground to support other structures on the human body support 1. The support rods 11 can also support the foot pedals 2. Each foot pedal 2 and its corresponding support rod 11 can form a telescopic rod assembly structure. Each foot pedal 2 can retract into its corresponding support rod 11, and each foot pedal 2 can be retracted into its corresponding support rod 11.
[0038] Therefore, in the embodiments of this application, each step bar 2 can be freely extended and retracted within the corresponding support rod 11, allowing people to perform mountain climbing exercises using the sit-up board. Alternatively, each step bar 2 can be retracted into its corresponding support rod 11, enabling people to perform sit-ups using the sit-up board. Thus, people can complete various exercise training programs, including sit-ups and mountain climbing exercises, using the sit-up board, thereby satisfying diverse fitness needs.
[0039] In one possible embodiment, when each step bar 2 can freely extend and retract within the support rod 11 corresponding to each step bar 2, the sit-up board is in the first working state. At this time, people can lie down, support themselves with their elbows or hands on the human support part 1 to perform mountain climbing exercise training. When each step bar 2 is retracted into the support rod 11 corresponding to each step bar 2, the sit-up board is in the second working state. At this time, people can lie on the human support part 1 to perform sit-up exercise training.
[0040] In one possible embodiment, each pedal 2 and its corresponding support rod 11 are hollow connecting rods. Each pedal 2 and its corresponding support rod 11 may have a through hole structure, and the through holes in each pedal 2 and its corresponding support rod 11 may be aligned.
[0041] Optionally, each footrest 2 and its corresponding support rod 11 are equipped with an elastic pull rope 22. When the sit-up board is equipped with the elastic pull rope 22, the sit-up board is in the third working state.
[0042] In one possible embodiment, one end of the elastic rope 22 extends out of the footrest 2, and the other end extends out of the support rod 11. In this case, people can perform leg or arm stretching exercises using the elastic rope 22 on the sit-up board. People can use their feet to push against the end of the elastic rope 22 outside the footrest 2 for leg stretches, and can use their hands to pull the end of the elastic rope 22 outside the support rod 11 for arm stretches.
[0043] In one possible embodiment, both ends of the elastic pull rope 22 are provided with handle connecting parts 221. The handle connecting parts 221 are used for people to grip with their hands or push with their feet to stretch their hands or feet.
[0044] Optionally, the handle connector 221 is detachably connected to the rope body of the elastic pull rope 22. When the elastic pull rope 22 is not needed, the handle connector 221 can be detached from the rope body of the elastic pull rope 22, thereby allowing the elastic pull rope 22 to be removed from the support rod 11 and the foot bar 2.
[0045] Optionally, when people use the elastic rope 22 for stretching exercises, they pull on one end of the elastic rope 22 while the other end of the elastic rope 22 is locked at the opening of the inner tube of the support rod 11, thereby fixing the elastic rope 22.
[0046] Specifically, the sit-up board may include a support pad 12. People can lie or sit on the support pad 12 of the body support and hold onto the handle connection on one side of the support bar 11 to perform arm stretching exercises. People can also lie, lie prone, or sit on the support pad 12 of the body support and hold onto the handle connection on one side of the foot bar 2 to perform leg stretching exercises.
[0047] In one possible embodiment, a locking part 23 is provided between each pedal 2 and the corresponding support rod 11, the locking part 23 being used to lock the position between the pedal 2 and the corresponding support rod 11.
[0048] Optionally, the locking part 23 is used to switch the connection state between each pedal 2 and the corresponding support rod 11. The connection state between each pedal 2 and the corresponding support rod 11 includes a telescopic locking state and a free telescopic state. When each pedal 2 and its corresponding support rod 11 are in the telescopic locking state, the pedal 2 cannot telescopically extend or retract within the support rod 11. When each pedal 2 and its corresponding support rod 11 are in the free telescopic state, the pedal 2 can freely extend or retract within the support rod 11.
[0049] Optionally, users can adjust the extension position of each pedal 2 within its corresponding support rod 11. When each pedal 2 extends a longer length from its corresponding support rod 11, the elastic rope 22 will deform and elongate more when people stretch their arms or legs using the rope. People will also need greater stretching force to stretch through the elastic rope 22. Therefore, people can adjust the amount of exercise for stretching training by adjusting the extension length of each pedal 2 from its corresponding support rod 11.
[0050] In one possible embodiment, each pedal 2 is coaxially arranged with its corresponding support rod 11, and each pedal 2 is movably disposed within its corresponding support rod 11.
[0051] Optionally, one end of the pedal 2 is slidably disposed inside the corresponding support rod 11 of each pedal 2, and the other end of the pedal 2 is provided with a foot pedal 21, which can be fixedly disposed on the pedal 2. People can use their hands or feet to push against the pedal 2 to carry out exercise training, including but not limited to mountain climbing running training and upper limb strength training.
[0052] In one possible embodiment, the sit-up board also includes a foot hook 3, which is used to achieve a limiting connection between the pedals 21 on the two footrests 2.
[0053] Optionally, each pedal 21 may be provided with a connecting part 211. The structure of the connecting part 211 may correspond to the structure of the hook rod 3. The connecting parts 211 of the two pedals 21 are respectively connected to both ends of the hook rod 3. The connecting parts 211 of the two pedals 21 are respectively detachably connected to both ends of the hook rod 3.
[0054] Optionally, the hook bar 3 can restrict the relative position between the two pedals 21, thereby restricting the extension and retraction of the pedal 2 within the support rod 11 corresponding to the pedal 2. This allows for positional or extension / retraction restrictions on the pedal 2 when extension and retraction within the support rod 11 corresponding to the pedal 2 are not required.
[0055] In one possible embodiment, each pedal 21 has at least one rolling element at its bottom, and several rolling elements at the bottom of each pedal 21 are in contact with the ground. When a person uses a sit-up board for mountain climbing training, their feet can slide on the ground through the rolling elements.
[0056] Optionally, the rolling element can be a roller.
[0057] In one possible embodiment, the human body support 1 includes a support pad 12, which can be a soft or hard pad structure that allows people to lie or sit on it. The support pad 12 can be located between two support rods 11.
[0058] In one possible embodiment, the sit-up board also includes two human support bars 13, which are used to support the back of a person when they are doing sit-up exercises.
[0059] Optionally, two human support rods 13 correspond to two footrests 2 respectively, and each human support rod 13 can be connected to the footrest 2 corresponding to each human support rod 13 at at least two connection angles. Each human support rod 13 can also be rotatably mounted on the footrest 2 corresponding to each human support rod 13, so that when people perform sit-up exercises on the sit-up board, they can lean against the two human support rods 13.
[0060] Optionally, the relative angle between each human support plate and the corresponding footrest 2 of each human support rod 13 is adjustable. Each human support rod 13 and its corresponding footrest 2 can be connected at least two relative angles, and these at least two relative angles can correspond one-to-one with at least two training levels for sit-up exercises. Therefore, the training level for sit-up exercises can be adjusted by changing the relative angle between each human support plate and its corresponding footrest 2, allowing different individuals to choose different training levels according to their needs.
[0061] In one possible embodiment, each human body support rod 13 includes a rotating branch rod 131 and a supporting branch rod 132, which can be used together to realize the human body support function of the human body support rod 13.
[0062] Optionally, the first end of each rotating rod 131 is disposed on the support rod 11 corresponding to each rotating rod 131. Each rotating rod 131 can be connected to the support rod 11 corresponding to each rotating rod 131 at different connection angles. Each rotating rod 131 can also rotate relative to the support rod 11 corresponding to each rotating rod 131.
[0063] Optionally, each support rod 132 is folded onto the second end of the rotating rod 131, and each support rod 132 can be fixedly connected to or rotatably connected to the rotating rod 131.
[0064] Optionally, during the use of the sit-up board, the human support rod 13 can be elastically deflected toward one side of the support rod 11 under the action of external pressure. The external pressure can be the back thrust of the human body during sit-ups. When the external pressure is removed from the human support rod 13, the human support rod 13 can return to the original connection angle relative to the support rod 11.
[0065] In one possible embodiment, during the rotation of the human body support rod 13, the support sub-rod 132 is horizontally positioned, allowing people to lean against the support sub-rod 132 for human body support.
[0066] Optionally, a support pad 12 is provided on the outer surface of the support rod 132, and a soft or hard pad for contact with the human body can be provided around the support rod 132.
[0067] In the embodiments of this application, fitness exercises including but not limited to crunches, shoulder stretches, and muscle stretching can also be performed based on a sit-up board.
[0068] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
[0069] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.
Claims
1. A multifunctional sit-up board, characterized in that, Includes a body support and two footrests; The human body support is provided with two support rods that correspond one-to-one with the two pedals; each pedal and its corresponding support rod together form a telescopic rod group structure, and each pedal can be retracted into the support rod corresponding to each pedal.
2. The sit-up board according to claim 1, characterized in that, When each pedal can freely extend and retract within its corresponding support rod, the sit-up board is in its first working state; when each pedal retracts into its corresponding support rod, the sit-up board is in its second working state.
3. The sit-up board according to claim 1, characterized in that, Each pedal and its corresponding support rod are hollow connecting rods, and each pedal and its corresponding support rod has an elastic rope installed inside.
4. The sit-up board according to claim 3, characterized in that, One end of the elastic pull rope extends out of the foot bar, and the other end of the elastic pull rope extends out of the support rod.
5. The sit-up board according to claim 3, characterized in that, Both ends of the elastic pull rope are equipped with handle connectors.
6. The sit-up board according to claim 1 or 3, characterized in that, Each pedal is provided with a locking part between itself and the support rod corresponding to each pedal; The locking part is used to switch the connection state between each pedal and the corresponding support rod; the connection state between each pedal and the corresponding support rod includes a telescopic locking state and a free telescopic state.
7. The sit-up board according to claim 1, characterized in that, Each pedal is coaxially arranged with its corresponding support rod; One end of the pedal is slidably disposed inside the support rod corresponding to each pedal, and the other end of the pedal is provided with a foot pedal.
8. The sit-up board according to claim 7, characterized in that, It also includes hook poles; Each pedal is provided with a connecting part; the connecting parts of the two pedals are respectively connected to the two ends of the hook rod.
9. The sit-up board according to claim 7, characterized in that, Each pedal has at least one rolling element at its bottom.
10. The sit-up board according to claim 1, characterized in that, The human body support includes two human body support rods; The two human support rods correspond to the two foot pedals respectively, and each human support rod can be connected to the foot pedal corresponding to each human support rod at at least two connection angles; Each human body support rod includes a rotating sub-rod and a supporting sub-rod; the first end of each rotating sub-rod is set on the supporting rod corresponding to each rotating sub-rod; each supporting sub-rod is folded onto the second end of the rotating sub-rod; During the use of the sit-up board, the human support rod can elastically deflect to one side under external pressure.