A sit-up assist

Abstract

The utility model belongs to the technical field of sit -up auxiliary device, especially relates to a sit -up auxiliary device, including base and mounting seat, be provided with sucking disc on the base, mounting seat both sides all are provided with support cross bar, support cross bar sets up on mounting seat upside, be provided with support gyro wheel rotationally on mounting seat, support gyro wheel sets up in support cross bar downside, form the containing space between support gyro wheel and support cross bar, support gyro wheel upside can rotate to containing space front side or rear side, and base extends to the bottom plate that forms to support cross bar rear side, be provided with footrest on the bottom plate, footrest sets up on the bottom plate upper end and is located support gyro wheel rear side, the utility model discloses a purpose lies in providing a sit -up auxiliary device convenient to use and comfortable.

Description

Technical Field

[0001] This utility model belongs to the technical field of sit-up assist devices, and specifically relates to a sit-up assist device. Background Technology

[0002] Sit-ups are a form of exercise designed to strengthen abdominal muscles. To make sit-ups easier for users, most people use sit-up assist devices. These devices can help users perform sit-ups more accurately and efficiently by fixing their feet or providing assistance.

[0003] To improve the comfort of sit-up aids, some sit-up aids are equipped with two sets of vertically distributed crossbars. During use, the user's feet are placed between the two sets of crossbars. For example, Chinese Utility Model Patent CN202320184037.9 discloses a sit-up aid that includes a base and a connecting seat slidably mounted on the base. The connecting seat has an upper crossbar and a locking element. The base has a sliding groove, and the side wall of the sliding groove has at least two fixing holes. The connecting seat has a mounting hole that connects to the sliding groove. The sliding part of the sliding connection has a locking member slidably disposed in the connecting seat, and the locking member is provided with a pin rod adapted to the fixing hole. One end of the pin rod can pass through the side of the sliding part and cooperate with the fixing hole. A control button is movably disposed on the connecting seat, and one end of the control button passes through the upper end of the connecting seat. A transmission link is provided between the control button and the locking member. The transmission link is rotatably disposed on the connecting seat and movably connected to the control button and the locking member respectively. An elastic member is provided on the connecting seat to drive the control button to reset. A lower crossbar is provided on the base.

[0004] While the upper and lower crossbars in the above structure can increase the contact area between the sit-up assist device and the user's feet, thus improving the comfort of the sit-up assist device, the upper and lower crossbars are fixed to the connecting seat and the base respectively. Furthermore, since the user's feet will move unconsciously when performing sit-ups, the user's feet may become abraded after prolonged exercise, affecting the user's use and exercise. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a sit-up assist device that is easy to use and comfortable.

[0006] The purpose of this utility model is achieved as follows:

[0007] A sit-up assist device includes a base and a mounting base. The base is provided with a suction cup, and the mounting base has support crossbars on both sides. The support crossbars are located on the upper side of the mounting base. Support rollers are rotatably mounted on the mounting base and are located on the lower side of the support crossbars. An accommodating space is formed between the support rollers and the support crossbars. The upper side of the support rollers can rotate to the front or rear of the accommodating space. The base extends to the rear of the support crossbars to form a bottom plate. A foot pedal is provided on the bottom plate, located at the upper end of the bottom plate and behind the support rollers.

[0008] The present invention is further configured such that: the suction cup is disposed at the bottom of the base, and the suction cup is located below the foot pedal or on the front and rear sides below the foot pedal.

[0009] The present invention is further configured such that: a traction rod is provided on the suction cup, a control component is rotatably provided on the traction rod, a storage groove is provided on the upper side of the base, at least one storage groove is provided between the foot pedal and the support roller, the control component can be stored in the storage groove and control the suction cup to adhere to the object or the ground, and the control component can protrude from the storage groove and stop the suction cup from adhering to the object or the ground.

[0010] The present invention is further configured such that: the base includes a detachably connected upper shell and a lower shell, a hinge part is provided on the support roller, a hinge groove adapted to the hinge part is formed between the upper shell and the lower shell, and the upper shell and the lower shell are relatively fixed so that the hinge part can be rotatably disposed in the hinge groove.

[0011] The present invention is further configured such that: the base is provided with a storage cavity, the upper shell is provided with a slot, the lower side of the support roller is stored in the storage cavity, and the upper side of the support roller passes through the slot and passes through the top of the base.

[0012] The present invention is further configured such that: hinge portions are formed on both sides of the support roller, and support protrusions are formed on the lower shell extending toward the support roller, and U-shaped grooves adapted to the hinge portions are provided on the support protrusions, with the openings of the U-shaped grooves facing upwards.

[0013] The present invention is further configured such that: the base is provided with a mounting hole, the mounting base includes a vertical rod slidably connected to the mounting hole, the supporting crossbars are respectively provided on both sides of the vertical rod, a plurality of positioning grooves are provided at intervals in the extending direction of the vertical rod, the side wall of the mounting hole is provided with an elastic hook adapted to the positioning groove, the elastic hook can cooperate with different positioning grooves and keep different distances between the supporting crossbar and the supporting roller, and the base is provided with a locking member for controlling the elastic hook to cooperate with the positioning groove.

[0014] The present invention is further configured such that: the locking member is rotatably mounted on the base, and the locking member includes a cam part and a control part; the control part can control the rotation of the cam part and make the cam part press against the elastic hook, so that the elastic hook keeps in cooperation with the positioning groove.

[0015] The present invention is further configured such that: the elastic hook is provided with an inclined driving slope, the side wall of the positioning groove can abut against the driving slope and drive the elastic hook to deform, thereby causing the elastic hook to disengage from the positioning groove; or, the positioning groove is provided with an inclined driving slope, the elastic hook can slide along the driving slope and deform, thereby causing the elastic hook to disengage from the positioning groove.

[0016] The present invention is further configured such that: a mounting cavity is provided below the base, the suction cup can deform into the mounting cavity, and the outer periphery of the mounting cavity extends downward to form an annular protrusion, the suction cup extends into the outer periphery of the mounting cavity, and the annular protrusion can press the suction cup against an object or the ground.

[0017] The advantages of this utility model compared to the prior art are:

[0018] 1. In this utility model, the support roller is rotatably mounted on the mounting base. During use, the user's feet pass between the support roller and the support crossbar. When the user's feet move unconsciously, they drive the support roller to roll, which helps reduce friction between the user's feet and the sit-up assist device, improves the comfort of the sit-up assist device, extends the user's exercise time, and makes it convenient for the user to use. The base plate and foot pedal in this structure allow the user's feet to drive the suction cup to stably adhere to objects or the ground, making it convenient for the user to use the sit-up assist device.

[0019] 2. In this utility model, since the suction cup is located below the foot pedal or on the front and rear sides below the foot pedal, the foot pedal can drive the suction cup to stably adhere to objects or the ground, which is beneficial for the stable installation of the sit-up assist device and makes it convenient for users to use. The storage slot helps to prevent the control components from being accidentally touched during use, which is beneficial for the stable installation of the sit-up assist device. Furthermore, since at least one storage slot is located between the foot pedal and the support roller, the user's foot can contact the control components when the suction cup is not adhering to an object or the ground, preventing the user from using the sit-up assist device for exercise when the suction cup is not adhering, thus avoiding accidents and making it convenient for users to use.

[0020] 3. The detachable upper and lower shells of this utility model facilitate the stable installation of the support rollers, preventing excessive stress on the support rollers during use and thus avoiding damage to the base, which helps extend the service life of the sit-up assist device. The storage cavity facilitates the concealed storage of the support rollers on the underside, preventing debris from entering between the support rollers and the base, and also preventing debris from getting tangled on the hinge, making it convenient for users. The upward-facing U-shaped groove makes it easy for manufacturers to place the support rollers on the lower shell, facilitating the assembly and production of the sit-up assist device.

[0021] 4. The elastic hook and positioning groove in this utility model facilitate a stable connection between the base and the mounting base, preventing free sliding between them during use. This allows the user to gradually increase or decrease the distance between the support roller and the support crossbar during adjustment. The locking mechanism ensures a tight fit between the elastic hook and the positioning groove, preventing accidental disengagement and facilitating user operation. The cam section has a simple structure, allowing the user to easily control the locking mechanism and adjust the sit-up assist device.

[0022] 5. The inclined driving surface in this invention facilitates the disengagement of the elastic hook from the positioning groove during the adjustment of the sit-up assist device, making it convenient for users to adjust the sit-up assist device and use it. The mounting cavity provides space for the deformation of the suction cup, allowing users to control the suction cup to adhere tightly to objects or the ground. The annular protrusion ensures that the outer circumference of the suction cup is in close contact with the object or the ground, preventing the side of the suction cup from tilting up during use and affecting its adhesion to the ground. This contributes to the stable installation of the sit-up assist device and makes it convenient for users to use. Attached Figure Description

[0023] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0024] Figure 2 This is the second structural schematic diagram of this utility model;

[0025] Figure 3 This is a partial sectional view of the present invention;

[0026] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0027] Figure 5 This is a schematic diagram of the base structure in this utility model;

[0028] Figure 6 This is a schematic diagram of the installation structure of the supporting roller on the base in this utility model;

[0029] Figure 7 This is an exploded view of the present invention;

[0030] Figure 8 This is a schematic diagram of the upper shell structure in this utility model;

[0031] Figure 9 This is a partial cross-sectional view of the upper shell in this utility model;

[0032] Figure 10 This is a schematic diagram of the lower shell structure of this utility model;

[0033] Figure 11This is a schematic diagram of the lower shell structure of this utility model;

[0034] Figure 12 This is a sectional view of the mounting base in this utility model;

[0035] Figure 13 This is a cross-sectional view of the supporting roller in this utility model;

[0036] Figure 14 This is a schematic diagram of the structure of the control component in this utility model;

[0037] Figure 15 This is a structural schematic diagram of the locking component in this utility model.

[0038] The labels in the diagram mean the following meanings: 1-Base; 11-Upper shell; 12-Lower shell; 13-Base plate; 14-Foot pedal; 15-Storage slot; 16-Protrusion; 17-Mounting hole; 18-Elastic hook; 19-Hinge slot; 111-Storage cavity; 112-Gate; 113-Arc-shaped groove; 121-Support protrusion; 122-U-shaped groove; 123-Reinforcing protrusion; 124-Reinforcing groove; 125-Mounting cavity; 126-Guide hole; 127-Annular protrusion; 181-Drive slope; 182-Guide slope; 2-Mounting base; 21-Upright post; 22-Support crossbar; 23-Positioning slot; 3-Suction cup; 31-Traction rod;

[0039] 4-Support roller; 41-Hinge; 5-Control component; 6-Locking component; 61-Control component; 62-Cam component. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0041] See Figures 1 to 15 As shown, a sit-up assist device includes a base 1 and a mounting base 2. A suction cup 3 is provided on the base 1. Supporting crossbars 22 are provided on both sides of the mounting base 2, with the crossbars 22 positioned on the upper side of the mounting base 2. Supporting rollers 4 are rotatably mounted on the mounting base 2, positioned below the supporting crossbars 22. A receiving space is formed between the supporting rollers 4 and the supporting crossbars 22. The upper side of the supporting rollers 4 can rotate towards the front or rear of the receiving space. In this structure, the supporting rollers 4 are rotatably mounted on the mounting base 2. During use, the user's feet pass between the supporting rollers 4 and the supporting crossbars 22. When the user's feet move unconsciously, they drive the supporting rollers 4 to roll, which helps reduce friction between the user's feet and the sit-up assist device during use, improving the comfort of the sit-up assist device, extending the user's exercise time, and making it convenient for the user.

[0042] In this utility model, the base 1 extends to the rear side of the supporting crossbar 22 to form a base plate 13. A foot pedal part 14 is provided on the base plate 13. The foot pedal part 14 is located at the upper end of the base plate 13 and behind the supporting roller 4. The arrangement of the base plate 13 and the foot pedal part 14 is conducive to the user's foot driving the suction cup 3 to be stably attached to the object or the ground, making it convenient for the user to use the sit-up assist device.

[0043] The suction cup 3 is located at the bottom of the base 1, and the suction cup 3 is located below the foot pedal 14 or on the front and rear sides below the foot pedal 14. In this structure, since the suction cup 3 is located below the foot pedal 14 or on the front and rear sides below the foot pedal 14, the foot pedal 14 can drive the suction cup 3 to stably adhere to objects or the ground, which is conducive to the stable installation of the sit-up assist device and makes it convenient for users to use.

[0044] The suction cup 3 is provided with a traction rod 31, and the base 1 is provided with a guide hole 126 adapted to the traction rod 31. A control component 5 is rotatably provided on the traction rod 31. The control component 5 is provided with a cam part 62. The cam part 62 abuts against the base 1 and controls the rotation of the control component 5. The cam part 62 can drive the traction rod 31 to slide in the guide hole 126, so that the suction cup 3 is adsorbed onto an object or the ground.

[0045] Preferably, the upper side of the base 1 is provided with a storage slot 15. At least one storage slot 15 is located between the foot pedal part 14 and the support roller 4. The control component 5 can be stored in the storage slot 15 and control the suction cup 3 to adhere to an object or the ground. The control component 5 can also protrude from the storage slot 15 and stop the suction cup 3 from adhering to the object or the ground. The setting of the storage slot 15 helps to prevent the control component 5 from being accidentally touched during use, which is conducive to the stable installation of the sit-up assist device. Since at least one storage slot 15 is located between the foot pedal part 14 and the support roller 4, when the suction cup 3 is not adhering to an object or the ground, the user's feet can contact the control component 5, which prevents the user from using the sit-up assist device for exercise when the suction cup 3 is not adhering, thus avoiding accidents and making it convenient for the user to use.

[0046] The base 1 described in this utility model includes a detachably connected upper shell 11 and a lower shell 12. A hinge part 41 is provided on the support roller 4. A hinge groove 19 adapted to the hinge part 41 is formed between the upper shell 11 and the lower shell 12. The upper shell 11 and the lower shell 12 are relatively fixed so that the hinge part 41 can be rotatably disposed in the hinge groove 19. The detachably connected upper shell 11 and lower shell 12 facilitate the stable installation of the support roller 4, avoid excessive force on the support roller 4 during use, which would cause damage to the base 1, and help extend the service life of the sit-up assist device.

[0047] The base 1 has a storage cavity 111, and the upper shell 11 has a slot 112. The lower side of the support roller 4 is stored in the storage cavity 111, and the upper side of the support roller 4 protrudes from the slot 112 and from the top of the base 1. The storage cavity 111 facilitates the concealment and storage of the lower side of the support roller 4, avoids and reduces the entry of debris between the support roller 4 and the base 1, and can prevent debris from getting tangled on the hinge part 41, making it convenient for users to use.

[0048] In this utility model, the support roller 4 extends to form hinge portions 41 on both sides, and the lower shell 12 extends towards the support roller 4 to form support protrusions 121. The support protrusions 121 are provided with U-shaped grooves 122 that are adapted to the hinge portions 41. The opening of the U-shaped grooves 122 faces upward, which makes it easy for the manufacturer to place the support roller 4 on the lower shell 12, thus facilitating the assembly and production of the sit-up assist device. In this embodiment, the side of the groove 112 is provided with an arc-shaped groove 113. When the upper shell 11 and the lower shell 12 are assembled and connected, the U-shaped groove 122 and the arc-shaped groove 113 combine to form the hinge groove 19.

[0049] The base 1 is provided with mounting holes 17. The mounting base 2 includes a vertical rod 21 slidably connected to the mounting holes 17. Supporting crossbars 22 are respectively provided on both sides of the vertical rod 21. Several positioning grooves 23 are provided at intervals in the extending direction of the vertical rod 21. The side wall of the mounting hole 17 is provided with elastic hooks 18 that are adapted to the positioning grooves 23. The elastic hooks 18 can cooperate with different positioning grooves 23 and maintain different distances between the supporting crossbars 22 and the supporting rollers 4. The base 1 is provided with locking members 6 for controlling the elastic hooks 18 and the positioning grooves 23 to maintain cooperation. The setting of the elastic hooks 18 and the positioning grooves 23 facilitates the stable connection between the base 1 and the mounting base 2, prevents the base 1 and the mounting base 2 from sliding freely during use, and allows the user to gradually increase or decrease the distance between the supporting rollers 4 and the supporting crossbars 22 during adjustment. The setting of the locking members 6 facilitates the tight cooperation between the elastic hooks 18 and the positioning grooves 23, prevents the elastic hooks 18 from accidentally disengaging from the positioning grooves 23 during use, and facilitates user use.

[0050] In this embodiment, the upper shell is provided with a protrusion 16, the mounting hole 17 is provided in the protrusion 16, and the elastic hook 18 is provided on the side wall of the protrusion 16. Preferably, the lower shell is provided with a reinforcing protrusion 123, and a reinforcing groove 124 is provided in the reinforcing protrusion 123. The lower end of the mounting hole 17 passes through the reinforcing groove 124, thereby improving the structural strength of the mounting hole 17 and preventing damage to the mounting hole 17 during use.

[0051] The locking element 6 is rotatably mounted on the base 1. The locking element 6 includes a cam part 62 and a control part 61. The control part 61 can control the cam part 62 to rotate and press the cam part 62 against the elastic hook 18, so that the elastic hook 18 is engaged with the positioning groove 23. The structure of the cam part 62 is simple, which makes it easy for the user to control the locking element 6 and to adjust the sit-up assist device. In this embodiment, the locking element 6 and the control element 5 have similar structures, only the shape is different.

[0052] In this embodiment, the elastic hook 18 is provided with an inclined driving slope 181. The side wall of the positioning groove 23 can abut against the driving slope 181 and drive the elastic hook 18 to deform, thereby disengaging the elastic hook 18 from the positioning groove 23. Alternatively, the positioning groove 23 is provided with an inclined driving slope 181, and the elastic hook 18 can slide along the driving slope 181 and deform, thereby disengaging the elastic hook 18 from the positioning groove 23. The driving slope 181 facilitates the disengagement of the elastic hook 18 from the positioning groove 23 during the adjustment of the sit-up assist device, making it convenient for the user to adjust the sit-up assist device and for the user to use.

[0053] Preferably, a guide slope 182 is provided on one side of the elastic hook 18. When the cam part 62 drives the elastic hook 18 to cooperate with the positioning groove 23, the cam part 62 is guided to move to one side of the elastic hook 18 by the guide slope.

[0054] The base 1 has a mounting cavity 125 below it. The suction cup 3 can deform into the mounting cavity 125, and the outer periphery of the mounting cavity 125 extends downward to form an annular protrusion 127. The suction cup 3 extends into the outer periphery of the mounting cavity 125, and the annular protrusion 127 can press the suction cup 3 firmly against an object or the ground. The mounting cavity 125 provides space for the deformation of the suction cup 3, making it easy for the user to control the suction cup 3 to adhere tightly to the object or the ground. The annular protrusion 127 ensures that the outer periphery of the suction cup 3 is in close contact with the object or the ground, preventing the side of the suction cup 3 from tilting up during use and affecting the suction cup 3's adhesion to the ground. This is beneficial for the stable installation of the sit-up assist device and makes it convenient for the user.

[0055] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A sit-up assist device, comprising a base (1) and a mounting base (2), wherein a suction cup (3) is provided on the base (1), and a support crossbar (22) is provided on both sides of the mounting base (2), the support crossbar (22) being disposed on the upper side of the mounting base (2), characterized in that: The mounting base (2) is rotatably provided with a support roller (4), which is located on the lower side of the support crossbar (22). A receiving space is formed between the support roller (4) and the support crossbar (22). The upper side of the support roller (4) can rotate to the front or rear of the receiving space. The base (1) extends to the rear side of the support crossbar (22) to form a base plate (13). A foot pedal (14) is provided on the base plate (13). The foot pedal (14) is located on the upper end of the base plate (13) and behind the support roller (4).

2. The sit-up assist device according to claim 1, characterized in that: The suction cup (3) is located at the bottom of the base (1), and the suction cup (3) is located below the foot pedal (14) or on the front and rear sides below the foot pedal (14).

3. A sit-up assist device according to claim 2, characterized in that: The suction cup (3) is provided with a traction rod (31), and a control element (5) is rotatably provided on the traction rod (31). A storage groove (15) is provided on the upper side of the base (1). At least one storage groove (15) is provided between the foot pedal (14) and the support roller (4). The control element (5) can be stored in the storage groove (15) and control the suction cup (3) to adhere to the object or the ground. The control element (5) can also pass through the storage groove (15) and stop the suction cup (3) from adhering to the object or the ground.

4. A sit-up assist device according to claim 1, 2, or 3, characterized in that: The base (1) includes a detachably connected upper shell (11) and lower shell (12). A hinge part (41) is provided on the support roller (4). A hinge groove (19) adapted to the hinge part (41) is formed between the upper shell (11) and the lower shell (12). The upper shell (11) and the lower shell (12) are relatively fixed so that the hinge part (41) can be rotatably disposed in the hinge groove (19).

5. A sit-up assist device according to claim 4, characterized in that: The base (1) is provided with a storage cavity (111), and the upper shell (11) is provided with a slot (112). The lower side of the support roller (4) is stored in the storage cavity (111), and the upper side of the support roller (4) passes through the slot (112) and passes through the top of the base (1).

6. A sit-up assist device according to claim 4, characterized in that: The support roller (4) extends to form hinge parts (41) on both sides respectively, and the lower shell (12) extends to form support protrusions (121) on the support roller (4) respectively. The support protrusions (121) are provided with U-shaped grooves (122) that are adapted to the hinge parts (41), and the openings of the U-shaped grooves (122) face upward.

7. A sit-up assist device according to claim 1, 2, 3, 5, or 6, characterized in that: The base (1) is provided with mounting holes (17), and the mounting base (2) includes a vertical rod (21) slidably connected to the mounting hole (17). Supporting crossbars (22) are respectively provided on both sides of the vertical rod (21). A number of positioning grooves (23) are provided at intervals in the extension direction of the vertical rod (21). The side wall of the mounting hole (17) is provided with elastic hooks (18) that are adapted to the positioning grooves (23). The elastic hooks (18) can cooperate with different positioning grooves (23) and keep different distances between the supporting crossbars (22) and the supporting rollers (4). The base (1) is provided with locking members (6) for controlling the elastic hooks (18) to cooperate with the positioning grooves (23).

8. A sit-up assist device according to claim 7, characterized in that: The locking member (6) is rotatably mounted on the base (1). The locking member (6) includes a cam part (62) and a control part (61). The control part (61) can control the cam part (62) to rotate and make the cam part (62) press against the elastic hook (18), so that the elastic hook (18) and the positioning groove (23) are engaged.

9. A sit-up assist device according to claim 7, characterized in that: The elastic hook (18) is provided with an inclined driving slope (181), and the side wall of the positioning groove (23) can abut against the driving slope (181) and drive the elastic hook (18) to deform, thereby causing the elastic hook (18) to disengage from the positioning groove (23). Alternatively, the positioning groove (23) is provided with an inclined driving slope (181), and the elastic hook (18) can slide along the driving slope (181) and deform, thereby causing the elastic hook (18) to disengage from the positioning groove (23).

10. A sit-up assist device according to claim 1, 2, 3, 5, 6, 8, or 9, characterized in that: The base (1) has an installation cavity (125) below it. The suction cup (3) can deform into the installation cavity (125), and the outer periphery of the installation cavity (125) extends downward to form an annular protrusion (127). The suction cup (3) extends into the outer periphery of the installation cavity (125), and the annular protrusion (127) can press the suction cup (3) against an object or the ground.

Images