Sit-up assist device
By designing a rollable cloth pad and a rotating shaft structure in the sit-up assistive device, the problem of sweat stains being difficult to clean is solved, and a hygienic, economical and practical sit-up assistive device that can be used by multiple people is realized.
Patent Information
- Application Number
- CN202422487946.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-15
AI Technical Summary
When multiple people use existing sit-up assistive devices, sweat stains are difficult to clean, affecting hygiene, especially in situations where multiple people use them continuously, such as in schools.
A sit-up assist device is designed, which includes a frame assembly, a seat cushion and a cloth pad. The cloth pad can be rolled up on both sides of the seat cushion, and the sweat-stained part can be automatically replaced through a rotating shaft and a spring to ensure that the seat cushion surface is clean when the next user uses it.
The automatic replacement of the seat cushion surface is realized, and the seat cushion is suitable for continuous use by multiple people, maintaining sanitary conditions, and has a simple structure and is economical.
Smart Images
Figure CN223392822U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of fitness equipment, and more specifically to a sit-up assist device. Background Art
[0002] Sit-ups are an exercise in which the person lies on their back with their legs together and their hands raised, using the contraction of their abdominal muscles to bring their hands into contact with their legs, or by lying flat on their back. In traditional sit-ups, one person is required to hold down the feet of the person doing the sit-ups with their hands, while a sit-up assist device is a piece of fitness equipment used to assist the person doing sit-ups. With the help of the sit-up assist device, the person can do sit-ups independently.
[0003] Existing a kind of sit-up auxiliary device, such as Figure 1 As shown, the exerciser comprises a seat cushion 90, an I-shaped frame 91, a T-shaped frame 92, and two hooks 93. The bottom of the seat cushion 90 is fixedly connected to the I-shaped frame 91. The T-shaped frame 92 is arranged vertically and located at one end of the I-shaped frame 91. The two hooks 93 are located on either side of the T-shaped frame 92 and are connected to the T-shaped frame 92. It should be noted that when doing sit-ups, the exerciser sits on the seat cushion 90 and hooks their feet around the two hooks 93. Then, they use their abdominal muscles to move their upper body closer to or away from the bent legs. However, since the exercise process consumes a lot of human energy, the back of the exerciser is prone to sweating. When the back of the exerciser contacts the cushion 90, sweat stains are easy to adhere to the cushion 90. Especially in the application scenario of school, when multiple students use the sit-up assisting device one by one, if the sweat stains on the back of the previous student adhere to the cushion 90, it is not conducive to the next student to use the sit-up assisting device.
[0004] Therefore, there is a need to provide a sit-up assisting device that can replace the seat cushion surface and is suitable for continuous use by multiple people. Utility Model Content
[0005] The main purpose of the present application is to provide a sit-up assist device, wherein the sit-up assist device includes a frame combination, a seat cushion, two hook legs and a cloth pad, the frame combination includes an I-frame and a T-frame, the T-frame is located at one end of the I-frame, the bottom of the seat cushion is fixedly connected to the I-frame, the two hook legs are respectively located on both sides of the T-frame and connected to the T-frame, the two ends of the cloth pad are respectively wound around the two sides of the bottom of the seat cushion, and the cloth pad is attached to the top surface of the seat cushion. When sweat remains on the back of the previous exerciser on the cloth pad, the cloth pad with the sweat stain can be rolled up by rolling up one end of the cloth pad and unfolding the other end of the cloth pad, and the clean cloth pad part is attached to the top surface of the seat cushion for use by the next exerciser. Compared with the existing technology, it has the advantage that the seat cushion surface can be replaced and is suitable for situations where multiple people use it continuously.
[0006] Another object of the present application is to provide a sit-up assist device, wherein the sit-up assist device also includes a plurality of spring clips, one end of the spring clip is fixedly connected to the seat cushion, and the other end of the spring clip presses the cloth pad wound on the rotating shaft, and the spring clip applies a pre-pressure to the cloth pad in the wound state to prevent it from unfolding by itself.
[0007] In order to achieve at least one of the above-mentioned invention objectives, the present application provides a sit-up assisting device, wherein the sit-up assisting device comprises:
[0008] a frame assembly, the frame assembly comprising an I-shaped frame and a T-shaped frame, the T-shaped frame being located at one end of the I-shaped frame; and
[0009] a seat cushion, the bottom of which is fixedly connected to the I-shaped frame; and
[0010] two hook portions, the two hook portions being located on both sides of the T-frame and connected to the T-frame; and
[0011] A cloth pad, two ends of which are respectively wound around two sides of the bottom of the seat cushion, and the cloth pad is attached to the top surface of the seat cushion.
[0012] In one or more embodiments of the present application, the sit-up assist device further includes two rotating shafts, which are rotatably mounted on both sides of the bottom of the seat cushion, one end of the cloth pad is wound on one rotating shaft, and the other end of the cloth pad is wound on the other rotating shaft.
[0013] In one or more embodiments of the present application, the frame assembly further includes a plurality of insertion seats, each of the two ends of the rotating shaft is provided with an insertion seat, and the insertion seat is fixedly connected to the seat cushion.
[0014] In one or more embodiments of the present application, the sit-up assist device further includes a plurality of spring clips, one end of each spring clip is fixedly connected to the seat cushion, and the other end of each spring clip presses the cloth pad wound on the rotating shaft.
[0015] In one or more embodiments of the present application, an end portion of the rotating shaft facing away from the elastic sheet has a handle portion.
[0016] In one or more embodiments of the present application, each of the insertion seats has a rotating hole with an opening, each of the rotating shafts passes through the opening and extends into the rotating hole, the insertion seat is made of plastic, the aperture of the rotating hole is larger than the shaft diameter of the rotating shaft, and the width of the opening is smaller than the shaft diameter of the rotating shaft.
[0017] In one or more embodiments of the present application, both ends of each rotating shaft have an anti-slip portion, and the maximum radial dimension of the anti-slip portion is greater than the aperture of the rotating hole.
[0018] In one or more embodiments of the present application, the two sides of the I-frame have a number of extensions arranged at intervals, the middle section of the I-frame is located in the middle section of the seat cushion, the extensions extend from the middle section of the seat cushion to the side of the seat cushion, and the extensions are connected to the seat cushion threaded fasteners.
[0019] In one or more embodiments of the present application, a knurled sleeve is provided on each of the four corners of the I-beam frame.
[0020] In an embodiment of the present application, the sit-up assist device includes a frame assembly, a seat cushion, two hook portions and a cloth pad. The frame assembly includes an I-frame and a T-frame. The T-frame is located at one end of the I-frame, and the bottom of the seat cushion is fixedly connected to the I-frame. The two hook portions are respectively located on both sides of the T-frame and are connected to the T-frame. The two ends of the cloth pad are respectively wound around the two sides of the bottom of the seat cushion, and the cloth pad is attached to the top surface of the seat cushion. When sweat remains on the back of the previous exerciser on the cloth pad, one end of the cloth pad can be rolled up and the other end of the cloth pad can be unfolded to achieve the rolling up of the cloth pad with the sweat remaining, and the clean cloth pad part can be attached to the top surface of the seat cushion for use by the next exerciser. Compared with the existing technology, it has the advantage that the seat cushion surface can be replaced and is suitable for situations where multiple people use it continuously. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] These and / or other aspects and advantages of the present application will become more clear and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, in which:
[0022] Figure 1 The figure shows a schematic structural diagram of an existing sit-up assisting device;
[0023] Figure 2The figure shows a schematic structural diagram of a sit-up assisting device according to the present invention from a bottom perspective;
[0024] Figure 3 The figure shows a schematic structural diagram of a sit-up assisting device from another perspective;
[0025] Figure 4 Pictured Figure 3 A local enlarged view of point C;
[0026] Figure 5 Pictured Figure 2 A local enlarged view of point D. DETAILED DESCRIPTION
[0027] The terms and words used in the following description and claims are not limited to the literal meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustration purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.
[0028] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.
[0029] Although ordinal numbers such as "first," "second," and the like will be used to describe various components, these are not intended to limit those components. The terms are used solely to distinguish one component from another. For example, a first component could be referred to as a second component, and similarly, a second component could be referred to as a first component without departing from the teachings of the utility model. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0030] The terms used herein are for the purpose of describing various embodiments only and are not intended to be limiting. As used herein, the singular is intended to include the plural, unless the context clearly indicates otherwise. It will also be understood that the terms "comprising" and / or "having" when used in this specification specify the presence of a stated feature, number, step, operation, component, element, or combination thereof, and do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.
[0031] Schematic sit-up aid, reference Figures 2 to 5 According to a preferred embodiment of the present invention, a sit-up assisting device includes a frame assembly 10, a seat cushion 20 and two hook legs 30.
[0032] Specifically, the frame assembly 10 includes an I-frame 101 and a T-frame (not shown in the figure), the T-frame is located at one end of the I-frame 101, and the T-frame is arranged vertically to the I-frame 101; in addition, the bottom of the seat cushion 20 is fixedly connected to the I-frame 101, so that the relative positions of the seat cushion 20 and the I-frame 101 are fixed; in addition, the two hook legs 30 are respectively located on both sides of the T-frame and are connected to the T-frame.
[0033] It should be noted that when doing sit-ups, the exerciser lies on his back with his buttocks sitting on the cushion 20, bends his knees, and hooks the soles of his feet on the two hooking parts 30 respectively. Then, he places his arms on his chest or behind his head, lies flat with his back in contact with the cushion 20, and uses his abdominal force to make his upper body stand up and close to his legs to complete a sit-up, and then lies flat again, repeating the cycle.
[0034] Since the exercisers consume a lot of physical energy during exercise, their backs may sweat a lot. When the exercisers lie flat, sweat stains are likely to remain on the seat cushion 20. In situations where multiple people use the seat cushion continuously, such as schools, if sweat stains from the previous exerciser remain on the seat cushion 20, it may be unhygienic.
[0035] In view of this, in an embodiment of the present application, the sit-up assist device further includes a cloth pad 40 , the two ends of which are respectively wrapped around the two sides of the bottom of the seat cushion 20 , and the cloth pad 40 is attached to the top surface of the seat cushion 20 .
[0036] It should be noted that the total length of the cloth pad 40 is several times the width of the seat cushion 20. By providing the cloth pad 40, when an exerciser lies flat on their back during exercise, their back comes into contact with the cloth pad 40. If the exerciser's back sweats and leaves sweat stains on the cloth pad 40, they can rotate one end of the cloth pad 40 to roll up one end of the cloth pad 40 and gradually unfold the other end of the cloth pad 40. During this process, the portion of the cloth pad 40 that originally had sweat stains is rolled up, and at the same time, the unfolded portion of the cloth pad 40 replaces the original portion of the cloth pad 40 and fits against the seat cushion 20, making it easier for the next exerciser to use it. Obviously, by providing the cloth pad 40 with its two ends respectively wound around the two sides of the seat cushion 20, compared to the prior art, the seat cushion surface can be replaced, making it suitable for continuous use by multiple people.
[0037] Furthermore, in order to realize that the cloth pad 40 is wound around both sides of the bottom of the seat cushion 20, as shown in FIG. Figure 2 and Figure 4As shown, the sit-up assist device also includes two rotating shafts 501, which are rotatably installed on both sides of the bottom of the seat cushion 20, one end of the cloth pad 40 is wound on one rotating shaft 501, and the other end of the cloth pad 40 is wound on the other rotating shaft 501.
[0038] It should be noted that the side wall of the rotating shaft 501 has a protrusion or groove (not marked in the figure) for fixing the cloth pad 40. When the side wall of the rotating shaft 501 has multiple protrusions, the protrusion is made to pierce one side of the cloth pad 40, and then the cloth pad 40 is wound around the rotating shaft 501, so that the cloth pad 40 is wound around the rotating shaft 501 or the cloth pad 40 is spread along the rotating shaft 501 when the rotating shaft 501 rotates circumferentially; when the side wall of the rotating shaft 501 has multiple grooves, one side of the cloth pad 40 is made to extend into the groove, and a pressure block is embedded in the groove and presses the cloth pad 40, so that the cloth pad 40 is wound around the rotating shaft 501 or the cloth pad 40 is spread along the rotating shaft 501 when the rotating shaft 501 rotates circumferentially.
[0039] It should also be noted that, in the initial state, only the cloth pad 40 is connected to one of the rotating shafts 501, and the cloth pad 40 is completely wound around the other rotating shaft 501. By rotating the rotating shaft 501 that is only connected to the cloth pad 40, the cloth pad 40 is gradually wound around this rotating shaft 501, and the rotating shaft 501 that was previously completely wound around the cloth pad 40 gradually spreads out the cloth pad 40.
[0040] Furthermore, in order to realize the rotation of the shaft 501, it is mounted on the seat cushion 20. Figure 4 and Figure 5 As shown, the frame assembly 10 further includes a plurality of insertion seats 502 . An insertion seat 502 is provided at both ends of each of the rotating shafts 501 , and the insertion seat 502 is fixedly connected to the seat cushion 20 .
[0041] Furthermore, when one side of the cloth pad 40 is used, in order to facilitate the removal and replacement of the cloth pad 40, as shown in FIG. Figure 4 and Figure 5 As shown, each of the insertion seats 502 has a rotating hole 5022 with an opening 5021, and each of the rotating shafts 501 passes through the opening 5021 and extends into the rotating hole 5022. The material of the insertion seat 502 is plastic, the aperture of the rotating hole 5022 is larger than the shaft diameter of the rotating shaft 501, and the width of the opening 5021 is smaller than the shaft diameter of the rotating shaft 501.
[0042] It should be noted that when replacing the cloth pad 40, an upward force is applied to the rotating shaft 501 to make the rotating shaft 501 disengage from the opening 5021 of the rotating hole 5022. Then, the cloth pad 40 is removed and replaced with a new cloth pad 40. When the rotating shaft 501 is placed in the rotating hole 5022, it can rotate circumferentially in the rotating hole 5022.
[0043] Furthermore, in order to prevent the rotating shaft 501 from moving along the central axis direction of the rotating hole 5022 and falling out of the rotating hole 5022, Figure 5 As shown, each of the two ends of the rotating shaft 501 has an anti-slip portion 5011 , and the maximum radial dimension of the anti-slip portion 5011 is larger than the aperture of the rotating hole 5022 .
[0044] Furthermore, in order to ensure that when the rotation of one of the rotating shafts 501 stops, the cloth pad 40 on the other rotating shaft 501 will not unfold by itself, as shown in FIG. Figure 2 As shown, the sit-up assist device further includes a plurality of spring clips 60, one end of each spring clip 60 being fixedly connected to the seat cushion 20, such fixed connection methods including but not limited to adhesive connection or bolt connection, and the other end of each spring clip 60 pressing the cloth pad 40 wound around the rotating shaft 501. The spring clips 60 apply a predetermined pressure to the cloth pad 40 to prevent the cloth pad 40 from unfolding on its own.
[0045] It should be noted that, in the embodiment of the present application, the plurality of spring pieces 60 are connected to each other via a plurality of connecting members 601 , so that it is convenient to move the spring pieces 60 when the cloth pad 40 is removed or replaced.
[0046] Furthermore, in order to facilitate the rotation of the rotating shaft 501, as Figure 2 As shown, an end of the rotating shaft 501 away from the elastic piece 60 has a handle portion 5012 .
[0047] It should be noted that, in the initial state, a new cloth pad 40 is wound on the rotating shaft 501 close to the spring 60, and the rotating shaft 501 with the handle portion 5012 is only connected to the other side of the cloth pad 40. By holding the handle portion 5012 and rotating the handle portion 5012, the rotating shaft 501 with the handle portion 5012 rotates circumferentially and gradually winds up the cloth pad 40.
[0048] Furthermore, in order to realize the connection between the I-frame 101 and the seat cushion 20, the two sides of the I-frame 101 have a number of extension parts 1011 arranged at intervals, the middle section of the I-frame 101 is located in the middle section of the seat cushion 20, and the extension part 1011 extends from the middle section of the seat cushion 20 to the side of the seat cushion 20, and the extension part 1011 is connected to the seat cushion 20 with threaded fasteners.
[0049] Furthermore, in order to prevent the sit-up assisting device from moving when the exerciser performs the exercise, a knurled sleeve 1012 is provided on each of the four corners of the I-shaped frame 101 .
[0050] In summary, the sit-up assist device according to the embodiment of the present application is explained, which provides the sit-up assist device with advantages such as the ability to replace the seat cushion surface and being suitable for continuous use by multiple people.
[0051] It is worth mentioning that in the embodiments of the present application, the sit-up assist device has a simple structure, does not involve complex manufacturing processes and expensive materials, and is highly economical. Furthermore, for manufacturers, the sit-up assist device provided in the present application is easy to produce and low in cost, which is more conducive to controlling production costs and further facilitating product promotion and use.
[0052] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are provided for illustrative purposes only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from these principles.
Claims
1. A sit-up assist device, characterized in that: The sit-up assisting device comprises a frame assembly, the frame assembly comprising an I-shaped frame and a T-shaped frame, the T-shaped frame being located at one end of the I-shaped frame; and a seat cushion, the bottom of which is fixedly connected to the I-shaped frame; and two hook portions, the two hook portions being located on both sides of the T-frame and connected to the T-frame; and A cloth pad, two ends of which are respectively wound around two sides of the bottom of the seat cushion, and the cloth pad is attached to the top surface of the seat cushion.
2. The sit-up assist device according to claim 1, characterized in that: The sit-up assist device further comprises two rotating shafts, which are rotatably mounted on both sides of the bottom of the seat cushion respectively. One end of the cloth pad is wound around one rotating shaft, and the other end of the cloth pad is wound around the other rotating shaft.
3. The sit-up assisting device according to claim 2, characterized in that: The frame assembly further comprises a plurality of insertion seats, both ends of each rotating shaft are provided with the insertion seats, and the insertion seats are fixedly connected to the seat cushion.
4. The sit-up assisting device according to claim 3, characterized in that: The sit-up assisting device further comprises a plurality of spring pieces, one end of each of which is fixedly connected to the seat cushion, and the other end of each of which presses the cloth pad wound around the rotating shaft.
5. The sit-up assisting device according to claim 4, characterized in that: An end portion of the rotating shaft away from the elastic sheet is provided with a handle portion.
6. The sit-up assisting device according to claim 5, characterized in that: Each of the insertion seats has a rotating hole with an opening, and each of the rotating shafts passes through the opening and extends into the rotating hole. The insertion seat is made of plastic, the aperture of the rotating hole is larger than the shaft diameter of the rotating shaft, and the width of the opening is smaller than the shaft diameter of the rotating shaft.
7. The sit-up assisting device according to claim 6, characterized in that: Both ends of each rotating shaft are provided with an anti-slip portion, and the maximum radial dimension of the anti-slip portion is greater than the aperture of the rotating hole.
8. The sit-up assisting device according to any one of claims 1 to 7, characterized in that: The two sides of the I-frame have a plurality of extensions arranged at intervals. The middle section of the I-frame is located in the middle section of the seat cushion. The extensions extend from the middle section of the seat cushion to the sides of the seat cushion, and the extensions are connected to the seat cushion threaded fasteners.
9. The sit-up assisting device according to claim 8, characterized in that: The four corners of the I-shaped frame are each sleeved with a knurled sleeve.