Automatic power-assisted waistband for abdominal muscle contraction

Abstract

The invention discloses an automatic power-assisted waistband for abdominal muscle contraction, and relates to the field of fitness equipment application, the automatic power-assisted waistband comprises a fitness waistband, a first clamping groove is formed in the side face of the fitness waistband, a first power-assisted mechanism is movably mounted on the side face of the first clamping groove, and the first power-assisted mechanism drives a swing assembly to swing back and forth through an electric drive transmission mechanism; therefore, the waist of the user is supported and assisted. The first power assisting mechanism is arranged to drive the swing assembly to swing in a reciprocating mode, then the swing assembly is attached to the waist of a user to achieve the power assisting purpose, the first power assisting mechanism comprises a first power source, a first circuit board and a transmission mechanism driving the swing assembly to move, and the first circuit board inputs a specific operation instruction through program editing; multi-gear adjustment of the transmission mechanism is achieved, the first power source provides energy to enable the transmission mechanism to work, the transmission mechanism pushes the swing assembly to swing to push the waist of a user, and therefore more labor can be saved when the user curls the abdomen.

Description

Technical Field

[0001] The present invention relates to the application field of fitness equipment, and specifically to an automatic assist belt for abdominal muscle contraction. Background Technique

[0002] A fitness belt is a piece of equipment commonly used to assist in supporting the waist during fitness training, especially suitable for high-load movements such as squats and deadlifts. Its main function is to increase the stability of the waist, reduce the risk of injury during exercise, and help maintain the correct posture better. A fitness belt is usually made of strong leather or nylon materials, and is designed with an adjustable strap that can be adjusted according to an individual's waist circumference.

[0003] For fitness enthusiasts, the training movements for abdominal muscles usually include crunches. The difference between crunches and sit-ups is that the key point of the sit-up movement is that the body above the lumbar spine bends. Sit-ups have been proven to cause certain damage to the lumbar spine of athletes. Therefore, crunches are more easily accepted. When athletes do crunches, the waist, hips, and lower limbs are in contact with the ground, and then the abdominal muscles contract to cause the body above the waist to curl.

[0004] If you want to achieve good training results for the abdominal muscles, crunches need to be completed a certain number of times. Often, as the athlete's abdominal muscle strength decreases after multiple crunches, the standardization of the crunch movement will decline. For some novice athletes, it is relatively difficult to complete a standard crunch movement and an effective number. Therefore, we propose an assist belt that can assist users in doing crunches to improve the athletic level of novice athletes and increase their enthusiasm for exercise. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide an automatic assist belt for abdominal muscle contraction to solve the technical problems mentioned in the above background.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic power-assisted belt for abdominal muscle contraction, comprising a fitness belt, a first card slot is arranged on the side of the fitness belt, and a driving device is movably installed on the side of the first card slot, the driving device is a first power-assisted mechanism, and the first power-assisted mechanism comprises a first shell, and two sets of fixing mechanisms for engaging the first card slot are arranged on the side of the first shell, a first driving assembly is arranged inside the first shell, and a conical half gear is rotatably connected inside the first driving assembly, and the conical half gear and the output end of the first shell are transmission-connected by setting a pulley assembly, a first transmission shaft is rotationally connected inside the first shell, and two sets of conical transmission gears are symmetrically arranged outside the first transmission shaft, and the two sets of conical transmission gears are meshed with the conical half gear, two sets of first rotating blocks are connected inside the first shell, and the two sets of first rotating blocks are respectively transmission-connected to the two ends of the first transmission shaft by setting a first reduction gear group, and the tops of the two sets of the first reduction gear groups are respectively threaded with support devices for supporting the user's waist.

[0007] By adopting the above technical solution, a first assisting mechanism is set up to drive the swinging component to swing back and forth, so that the swinging component is close to the user's waist to achieve the purpose of assisting. The first assisting mechanism includes a first power supply, a first circuit board and a transmission mechanism that drives the swinging component to move. The first circuit board is programmed to input specific operating instructions to achieve multi-gear adjustment of the transmission mechanism. The first power supply provides energy to make the transmission mechanism work. The transmission mechanism drives the swinging component to swing and pushes the user's waist, so that the user can save more effort when doing sit-ups.

[0008] The present invention is further configured such that a first circuit board for controlling operation is provided on one side of the first shell, a first power supply is installed inside the first shell, a first charging port is provided on one side of the first shell, and a first storage compartment for storing a swing assembly is provided inside the first shell.

[0009] Preferably, by providing a first power supply, the first power-assisting mechanism can be charged for use, and is convenient for carrying outside. A first storage compartment is provided to store the swing assembly, so that the swing assembly can be stored inside the first power-assisting mechanism for easy carrying.

[0010] The present invention is further configured such that the supporting device is a swinging assembly, the swinging assembly includes a swinging frame threadedly connected to the first rotating block, and the swinging frame is arranged in an arc shape, and a plurality of groups of silicone strips are arranged on the side of the swinging frame, the internal rotation of the swinging frame is connected to a plurality of groups of extension arms, and the internal rotation of the swinging frame is connected to a plurality of groups of worm gears, and the ends of the plurality of groups of worm gears and the plurality of groups of extension arms are meshed with each other, the internal rotation of the swinging frame is connected to a first fixed rod, and two groups of worm gears are arranged on the outside of the first fixed rod, and the worm gears and the plurality of groups of worm gears are meshed with each other.

[0011] Preferably, by arranging the swinging assembly to be mounted on the first boosting mechanism, when the first boosting mechanism works, it drives the swinging assembly to swing reciprocally, so as to provide boosting support for the user's waist.

[0012] The present invention is further configured such that two groups of first clamping grooves are symmetrically arranged, inclined guide grooves are arranged at the ends of the two groups of first clamping grooves, and positioning holes are formed in the sides of the two groups of first clamping grooves.

[0013] Preferably, by arranging the inclined guide grooves, the fixing pin can slide to the top of the first clamping groove, so that the length of the fixing pin can be set longer, facilitating the fixing pin to be better inserted into the positioning hole.

[0014] The present invention is further configured such that the fixing mechanism includes a second clamping groove that is engaged with the first clamping groove, an installation shell is arranged on the side of the second clamping groove, a linkage block is movably installed inside the installation shell by arranging a limiting component, a first spring is arranged at one end of the linkage block, a button is arranged at the other end of the linkage block, a guide post is arranged inside the installation shell, a second spring is sleeved outside the guide post, and a fixing pin is sleeved outside the guide post. The fixing pin penetrates through the linkage block, extends into the second clamping groove, and the fixing pin is matched with the positioning hole.

[0015] Preferably, by arranging the fixing mechanism, the first boosting mechanism can be movably installed on the side of the fitness belt, and the first boosting mechanism is also relatively convenient to disassemble. Thus, the first boosting mechanism and the fitness belt can be used separately or in combination.

[0016] The present invention is further configured such that the supporting device is a flexible bracket, and the flexible bracket includes a flexible lumbar support plate. Two groups of sleeves are arranged inside the flexible lumbar support plate, a second fixing rod is rotatably connected inside each of the two groups of sleeves, and the second fixing rod is threadedly connected with the first rotating block.

[0017] Preferably, by arranging the flexible bracket that fits the user's waist better, the user experience can be improved. The flexible lumbar support plate of the flexible bracket adopts an ergonomic design, has a larger contact area with the waist, and has better stability in providing boosting support for the user's waist during use.

[0018] The present invention is further configured such that the driving device is a second boosting mechanism, and the second boosting mechanism includes a second housing. A second driving assembly is disposed inside the second housing, and a first meshing tooth is connected to an end of the second driving assembly. A second transmission shaft and a third transmission shaft are rotatably connected inside the second housing, and the second transmission shaft and the third transmission shaft are drivingly connected through a bevel gear set. Two second rotating blocks are rotatably connected inside the second housing, and the two second rotating blocks and both ends of the third transmission shaft are drivingly connected through a second reduction gear set respectively.

[0019] Preferably, the second boosting mechanism can also be used to drive the swinging assembly to swing reciprocally, and the driving form of the second boosting mechanism is more intelligent. By providing the first meshing tooth and the second meshing tooth, the disconnection and connection of the driving force of the second boosting mechanism can be achieved.

[0020] The present invention is further configured such that a third spring is sleeved outside the second transmission shaft, a square rod is disposed at an end of the second transmission shaft, and a collar is sleeved outside the square rod. A second meshing tooth is disposed at one end of the collar, and the second meshing tooth is matched with the first meshing tooth. An electric telescopic rod is disposed inside the second housing, and a push frame is connected to an end of the electric telescopic rod. A friction plate for fitting the collar is disposed on a side surface of the push frame.

[0021] Preferably, by providing the friction plate on the side surface of the push frame, when the first meshing tooth and the second meshing tooth are disconnected, the friction plate on the side surface of the push frame fits the collar, which can limit the rotation of the collar, thereby providing resistance for the reset of the swinging assembly.

[0022] The present invention is further configured such that a second circuit board for controlling the operation is disposed on one side of the second housing, a second power source is installed inside the second housing, and a second charging port is disposed on one side of the second housing. A second storage compartment for storing the swinging assembly is disposed inside the second housing.

[0023] Preferably, by providing the second storage compartment, the second boosting mechanism can store the swinging assembly.

[0024] In summary, the present invention mainly has the following beneficial effects:

[0025] 1. The present invention drives the swinging assembly to swing reciprocally by providing the first boosting mechanism, and then the swinging assembly abuts against the user's waist to achieve the purpose of boosting. The first boosting mechanism includes a first power source, a first circuit board, and a transmission mechanism for driving the swinging assembly to move. The first circuit board inputs specific operation instructions through program editing to achieve multi-gear adjustment of the transmission mechanism. The transmission mechanism is powered by the first power source to work, and the transmission mechanism pushes the swinging assembly to swing to push the user's waist, so that the user can be more labor-saving when doing sit-ups.

[0026] 2. The present invention also sets a second assisting mechanism to drive the swinging assembly to swing reciprocally, thereby achieving the purpose of assisting in sit-ups. The operation mode of the second assisting mechanism is more intelligent than that of the first assisting mechanism. When the user makes a starting movement for sit-ups during the operation of the second assisting mechanism, the second rotating block connected to the swinging assembly resets by a certain angle under the action of the torsion spring. Then, the built-in rotary encoder monitors the rotation of the second rotating block, enabling the transmission mechanism of the second assisting mechanism to be connected. The transmission mechanism works to push the swinging assembly to rotate, thereby achieving the purpose of assistance. When the swinging assembly swings to the maximum angle, the rotary encoder controls the disconnection of the transmission mechanism end based on this signal. Then, the swinging assembly can be reset in the reverse direction, that is, the user can start lying flat without being restricted. The friction assembly in the transmission mechanism makes the reset of the swinging assembly have a certain resistance, thereby making the process of the user's sit-up and lying flat more labor-saving. When the user does not move the sit-up to the maximum inclination angle of the swinging assembly and wants to lie flat and descend, the rotary encoder detects that the second rotating block stops rotating, and the value of the pressure sensor connected to the torsion spring increases. Based on this signal, the transmission mechanism of the second assisting mechanism will also be disconnected in the same way as the above operation process. That is, by setting sensors, it is realized that both the sit-up and lying flat processes can be assisted, and the user can directly lie flat at different angles during the sit-up.

[0027] 3. The present invention sets a swinging assembly that can fit the user's waist to support the user's waist. The swinging assembly is internally provided with adjustable extension arms to increase the contact area between the swinging assembly and the user's waist, making the swinging assembly more stable when acting on the user's waist. Moreover, when the swinging assembly contracts, it can be stored in the storage compartment of the assisting mechanism, making it more convenient to carry the waist belt and the assisting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the installation of the fitness waist belt, the first assisting mechanism and the swinging assembly of the present invention;

[0029] Figure 2 Schematic diagram of the installation of the fitness waist belt and the strengthening layer of the present invention;

[0030] Figure 3 Schematic diagram of the installation of the fitness waist belt and the first card slot of the present invention;

[0031] Figure 4 Of the present invention Figure 3 Enlarged view of part A in

[0032] Figure 5 Schematic diagram of the structure of the fixing mechanism of the present invention;

[0033] Figure 6 Schematic diagram of the internal structure of the fixing mechanism of the present invention;

[0034] Figure 7 Schematic diagram of the distribution of the positioning pin and the second card slot of the present invention;

[0035] Figure 8 Schematic diagram of the installation of the first boosting mechanism, the fixing mechanism and the swinging component of the present invention;

[0036] Figure 9 Schematic diagram of the internal structure of the first boosting mechanism of the present invention;

[0037] Figure 10 Schematic diagram of the distribution of the first housing and the first rotating block of the present invention;

[0038] Figure 11 Schematic diagram of the distribution of the first driving component, the pulley component, the conical half gear and the conical transmission gear of the present invention;

[0039] Figure 12 Schematic diagram of the structure of the swinging component of the present invention;

[0040] Figure 13 Schematic diagram of the internal structure of the swinging component of the present invention;

[0041] Figure 14 Schematic diagram of the flexible support structure of the present invention;

[0042] Figure 15 Schematic diagram of the structure of the second fixing rod of the present invention;

[0043] Figure 16 Schematic diagram of the internal structure of the second boosting mechanism of the present invention;

[0044] Figure 17 For the present invention Figure 16 Enlarged view of part B in;

[0045] Figure 18 Schematic diagram of the installation of the first meshing tooth, the second meshing tooth, the collar, the square rod and the third spring of the present invention.

[0046] Explanation of reference numerals:

[0047] 1. Fitness belt; 2. Reinforcement layer; 3. First card slot; 4. Inclined guide groove; 5. Positioning hole; 6. First boosting mechanism; 601. First housing; 602. First drive assembly; 603. Tapered half gear; 604. Pulley assembly; 605. First transmission shaft; 606. Tapered drive gear; 607. First rotating block; 608. First reduction gear set; 609. First circuit board; 610. First power source; 611. First charging port; 612. First storage compartment; 7. Fixing mechanism; 701. Second card slot; 702. Mounting shell; 703. Limiting assembly; 704. Linking block; 705. First spring; 706. Button; 707. Guide post; 708. Second spring; 709. Fixing pin; 8. Swing assembly; 801. Swing frame; 802. Silicone strip; 803. Extension arm; 804. Worm gear; 805. First fixing rod; 806. Worm; 9. Flexible support; 901. Flexible lumbar support plate; 902. Sleeve; 903. Second fixing rod; 10. Second boosting mechanism; 1001. Second housing; 1002. Second drive assembly; 1003. First meshing tooth; 1004. Second transmission shaft; 1005. Third transmission shaft; 1006. Bevel gear set; 1007. Second rotating block; 1008. Second reduction gear set; 1009. Third spring; 1010. Square rod; 1011. Collar; 1012. Second meshing tooth; 1013. Electric telescopic rod; 1014. Pushing frame; 1015. Friction plate; 1016. Second circuit board; 1017. Second power source; 1018. Second charging port; 1019. Second storage compartment. Specific embodiments

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0049] The embodiments of the present invention will be described below according to its overall structure.

[0050] The first embodiment:

[0051] Please refer to Figures 1-15, An automatic assist belt for abdominal muscle contraction, including a fitness belt 1. An enhancement layer 2 is provided on the inner side of the fitness belt 1. A first card slot 3 is provided on the side of the fitness belt 1, and a driving device is movably installed on the side of the first card slot 3. The driving device is a first assist mechanism 6, and the first assist mechanism 6 includes a first housing 601. Two groups of fixing mechanisms 7 for engaging with the first card slot 3 are provided on the side of the first housing 601. The fixing mechanisms 7 are installed on the side of the first assist mechanism 6. Thus, the first assist mechanism 6 can be movably installed on the first card slot 3 on the side of the fitness belt 1 through the fixing mechanisms 7, enabling the first assist mechanism 6 to be used separately from the fitness belt 1. A first driving component 602 is provided inside the first housing 601. A conical half gear 603 is rotatably connected inside the first driving component 602, and the conical half gear 603 and the output end of the first housing 601 are connected by a pulley assembly 604. A first transmission shaft 605 is rotatably connected inside the first housing 601. Two groups of conical transmission gears 606 are symmetrically provided on the outside of the first transmission shaft 605, and the two groups of conical transmission gears 606 are engaged with the conical half gear 603. Two groups of first rotating blocks 607 are connected inside the first housing 601, and the two groups of first rotating blocks 607 and both ends of the first transmission shaft 605 are connected by first reduction gear sets 608. Support devices for supporting the user's waist are respectively threadedly connected to the tops of the two groups of first reduction gear sets 608.

[0052] In the above embodiment, specifically, please refer to Figures 9-11 , A first circuit board 609 for controlling the operation is provided on one side of the first housing 601. A first power source 610 is installed inside the first housing 601. A first charging port 611 is provided on one side of the first housing 601. A first storage compartment 612 for storing the swing assembly 8 is provided inside the first housing 601. By providing the first power source 610, the first assist mechanism 6 can be charged for use, facilitating portability. The first storage compartment 612 is provided to store the swing assembly 8 so that the swing assembly 8 can be stored inside the first assist mechanism 6 for easy carrying.

[0053] In the above embodiment, specifically, please refer to Figure 12 and Figure 13, the supporting device is a swinging assembly 8. The swinging assembly 8 includes a swinging frame 801 threadedly connected to the first rotating block 607. The swinging frame 801 is arc-shaped, and multiple groups of silica gel strips 802 are arranged on the side surface of the swinging frame 801. Multiple groups of extension arms 803 are rotatably connected inside the swinging frame 801, and multiple groups of worm wheels 804 are rotatably connected inside the swinging frame 801. The multiple groups of worm wheels 804 are meshed with the ends of the multiple groups of extension arms 803. A first fixing rod 805 is rotatably connected inside the swinging frame 801, and two groups of worm shafts 806 are arranged on the outside of the first fixing rod 805. The worm shafts 806 are meshed with the multiple groups of worm wheels 804. By arranging the swinging assembly 8 to be used on the first assisting mechanism 6, when the first assisting mechanism 6 works, it drives the swinging assembly 8 to swing reciprocally, and can provide assisting support for the user's waist.

[0054] In the above embodiment, specifically, please refer to again Figure 4 , two groups of first clamping grooves 3 are symmetrically arranged, and inclined guide grooves 4 are arranged at the ends of the two groups of first clamping grooves 3. Positioning holes 5 are formed on the side surfaces of the two groups of first clamping grooves 3. By arranging the inclined guide grooves 4, the fixing pin 709 can slide to the top of the first clamping groove 3, so that the length of the fixing pin 709 can be set longer, so that the fixing pin 709 can be better inserted into the positioning hole 5.

[0055] In the above embodiment, specifically, please refer to again Figures 5-7 , the fixing mechanism 7 includes a second clamping groove 701 that is engaged with the first clamping groove 3. An installation shell 702 is arranged on the side surface of the second clamping groove 701. A linkage block 704 is movably installed inside the installation shell 702 through a limiting component 703. One end of the linkage block 704 is provided with a first spring 705, and a button 706 is arranged at the other end of the linkage block 704. A guide post 707 is arranged inside the installation shell 702. A second spring 708 is sleeved on the outside of the guide post 707, and a fixing pin 709 is sleeved on the outside of the guide post 707. The fixing pin 709 penetrates through the linkage block 704 and extends into the second clamping groove 701. The fixing pin 709 is matched with the positioning hole 5. By arranging the fixing mechanism 7, the first assisting mechanism 6 can be movably installed on the side surface of the fitness belt 1, and the first assisting mechanism 6 is also relatively convenient to disassemble. Furthermore, the first assisting mechanism 6 and the fitness belt 1 can be used separately or in combination.

[0056] In the above embodiment, specifically, please refer to again Figure 14 and Figure 15The supporting device is a flexible frame support 9, and the flexible frame support 9 includes a flexible waist protection plate 901. Two groups of sleeves 902 are arranged inside the flexible waist protection plate 901, and the interiors of the two groups of sleeves 902 are rotatably connected with a second fixed rod 903, and the second fixed rod 903 is threadedly connected to the first rotating block 607. By setting a flexible frame support 9 that fits the user's waist more closely, the user's use experience can be improved. The flexible waist protection plate 901 of the flexible frame support 9 adopts an ergonomic design, has a larger contact area with the waist, and has better stability in supporting the user's waist during use.

[0057] Second embodiment:

[0058] See also Figures 16-18 The driving device is a second power-assisting mechanism 10, and the second power-assisting mechanism 10 includes a second shell 1001, a second driving assembly 1002 is arranged inside the second shell 1001, and the end of the second driving assembly 1002 is connected with a first meshing tooth 1003, the second shell 1001 is internally rotatably connected with a second transmission shaft 1004 and a third transmission shaft 1005, and the second transmission shaft 1004 and the third transmission shaft 1005 are transmission-connected by setting a bevel gear set 1006, the second shell 1001 is internally rotatably connected with two groups of second rotating blocks 1007, and the two groups of second rotating blocks 1007 and the two ends of the third transmission shaft 1005 are respectively transmission-connected by setting a second reduction gear set 1008, and the second power-assisting mechanism 10 is also used to drive the swinging assembly 8 to swing back and forth, thereby achieving the purpose of crunch-assisting. The second power-assisting mechanism 10 is more intelligent than the first power-assisting mechanism 6 in operation. When the second power-assisting mechanism 10 is working, when the user has a crunch-starting action, the second rotating block 100 connected to the swinging assembly 8 7 is reset to a certain angle under the action of the torsion spring, and then the built-in rotary encoder detects that the second rotating block 1007 rotates, so that the transmission mechanism of the second power-assisting mechanism 10 is connected, and the operation of the transmission mechanism is used to push the swing component 8 to rotate to achieve the purpose of power assistance. When the swing component 8 swings to the maximum angle, the rotary encoder uses this as a signal to control the transmission mechanism end to disconnect, and then the swing component 8 can be reset in the opposite direction, that is, the user can start to lie down without being restricted. The friction plate 1015 in the transmission mechanism makes the swing component 8 reset with a certain resistance, so that the process of the user curling up and lying down is also more labor-saving. When the user does not curl up to the maximum inclination angle of the swing component 8, that is, wants to lie down, the rotary encoder detects that the second rotating block 1007 stops rotating, and the value of the built-in pressure sensor connected to the torsion spring increases. Taking this as a signal, the transmission mechanism of the second power-assisting mechanism 10 will also be disconnected in the same way as the above-mentioned operation process, that is, by setting a sensor, it can be achieved that the process of curling up and lying down can be assisted, and the user can lie down directly at different angles when getting up.

[0059] In the above embodiments, please refer toFigures 16-18 A third spring 1009 is sleeved outside the second transmission shaft 1004, a square rod 1010 is arranged at the end of the second transmission shaft 1004, a collar 1011 is sleeved outside the square rod 1010, a second engaging tooth 1012 is arranged at one end of the collar 1011, the second engaging tooth 1012 is matched with the first engaging tooth 1003, an electric telescopic rod 1013 is arranged inside the second housing 1001, a push frame 1014 is connected to the end of the electric telescopic rod 1013, and a friction plate 1015 for fitting the collar 1011 is arranged on the side surface of the push frame 1014. By arranging the friction plate 1015 on the side surface of the push frame 1014, when the first engaging tooth 1003 and the second engaging tooth 1012 are disengaged, the friction plate 1015 on the side surface of the push frame 1014 fits the collar 1011, so that the rotation of the collar 1011 can be restricted, thereby providing resistance for the reset of the swing assembly 8.

[0060] In the above embodiment, specifically, please refer to Figure 16 A second circuit board 1016 for controlling the operation is arranged on one side of the second housing 1001, a second power supply 1017 is installed inside the second housing 1001, a second charging port 1018 is arranged on one side of the second housing 1001, and a second storage compartment 1019 for storing the swing assembly 8 is arranged inside the second housing 1001. By arranging the second storage compartment 1019, the second assisting mechanism 10 can store the swing assembly 8.

[0061] When the present invention works specifically: for the first embodiment, when the user does a crunch, first install the first assisting mechanism 6 on the side of the fitness belt 1, and use the second card slot 701 to engage with one side of the first card slot 3. When starting to engage, the fixing pin 709 slides across the top of the inclined guide groove 4, and then the fixing pin 709 rises a certain distance along the guide post 707 and compresses the second spring 708. The fixing pin 709 will slide along the top of the first card slot 3. As the engagement continues, the fixing pin 709 moves to the position of the positioning hole 5. Under the reset action of the second spring 708, the fixing pin 709 extends into the inside of the positioning hole 5. Furthermore, the first assisting mechanism 6 is fixed to the sides of the two first card slots 3 through the two fixing mechanisms 7, that is, the first assisting mechanism 6 is movably installed on the side of the fitness belt 1.

[0062] Next, open the first storage compartment 612 of the first assisting mechanism 6, take out two sets of swing components 8, rotate the first fixing rod 805, the first fixing rod 805 drives the two sets of worm gears 806 to rotate, and then the worm gears 806 engage with the worm wheels 804, and the rotation of the worm wheels 804 drives multiple sets of extension arms 803 to unfold from the inside of the swing frame 801. Then, threadedly connect the swing components 8 to the top of the first rotating block 607. The user can also use the flexible support 9 as needed. Rotate the second fixing rod 903 so that the second fixing rod 903 is threadedly connected to the first rotating block 607 to install the flexible support 9 on the top of the first assisting mechanism 6. The swing components 8 and the flexible support 9 can be equipped for different versions of the first assisting mechanism 6. The combination of the first assisting mechanism 6 and the swing components 8 is more inclined to be convenient for carrying, while the volume of the flexible support 9 is relatively large. The flexible lumbar support plate 901 is made of flexible silica gel, has a larger contact area with the user's waist, and conforms to ergonomics. Therefore, the combination of the first assisting mechanism 6 and the flexible support 9 is more suitable for use in fitness venues and families.

[0063] Next, the user adjusts the gear position of the first assisting mechanism 6 as needed to control the running speed of the first assisting mechanism 6. The user wears the fitness belt 1 and lies flat. When the first driving component 602 drives the pulley assembly 604 to work, the pulley assembly 604 drives the tapered half gear 603 to rotate. The tapered half gear 603 engages with one set of tapered transmission gears 606, and then this set of tapered transmission gears 606 drives the first transmission shaft 605 to rotate. The first transmission shaft 605 drives the first rotating block 607 to rotate through the first reduction gear sets 608 at both ends, so that the first rotating block 607 drives the swing components 8 to start flipping. After the user's waist feels the thrust of the swing components 8, start the training in the abdominal curl up phase. As the tapered half gear 603 engages with another set of tapered transmission gears 606, this set of tapered transmission gears 606 drives the first transmission shaft 605 to reverse, and then the swing components 8 connected to the first rotating block 607 reset, enabling the user to do the abdominal curl down phase of the training. As the first assisting mechanism 6 continues to work, the user continuously does abdominal curl training with the assistance of the first assisting mechanism 6 and the swing components 8.

[0064] When the first assisting mechanism 6 needs to be disassembled, the user presses the button 706 with both hands. The button 706 pushes the linkage block 704 to move, and then the linkage block 704 squeezes the fixing pin 709 to make it rise, so that the fixing pin 709 slides out of the positioning hole 5. Therefore, the first assisting mechanism 6 can be disassembled from one side of the fitness belt 1.

[0065] For the second embodiment, when the second assisting mechanism 10 works, other steps are the same as above. The user wears the fitness belt 1 and lies flat with the second assisting mechanism 10. When the user curls up and rises a short distance, the second rotating block 1007 will rotate under the reset action of the torsion spring. The rotary encoder built in the second housing 1001 and connected to the second rotating block 1007 detects the rotation of the second rotating block 1007, and controls the electric telescopic rod 1013 to drive the pushing frame 1014 to move with this signal. Then, the collar 1011 moves along the square rod 1010 under the reset action of the third spring 1009, that is, the collar 1011 will push the second engaging tooth 1012 and the first engaging tooth 1003 to engage. The second driving component 1002 rotates to drive the first engaging tooth 1003 to rotate, the first engaging tooth 1003 drives the second engaging tooth 1012 to rotate, and the second engaging tooth 1012 will drive the collar 1011, the square rod 1010 and the second transmission shaft 1004 to rotate. Then, the second transmission shaft 1004 drives the third transmission shaft 1005 to rotate through the bevel gear set 1006. The third transmission shaft 1005 drives the second rotating block 1007 to rotate by using the second reduction gear sets 1008 at both ends. The rotation of the second rotating block 1007 drives the swing assembly 8 or the flexible support 9 to assist the user's waist.

[0066] When the second rotating block 1007 rotates to the maximum elevation angle of the device, the rotary encoder will detect the rotation angle of the second rotating block 1007, and thus control the electric telescopic rod 1013 to push the pushing frame 1014 to move with this as a signal. The pushing frame 1014 pushes the collar 1011 to move and compress the third spring 1009, so that the second engaging tooth 1012 and the first engaging tooth 1003 are separated. The friction plate 1015 on the side of the collar 1011 will fit on the collar 1011, thus restricting the rotation of the collar 1011. Therefore, when the user curls up and lies flat, the reset of the second rotating block 1007 will be affected by the resistance brought by the friction force to the transmission mechanism, making it easier for the user to curl up and lie flat. According to the above, the second assisting mechanism 10 continuously operates to assist in doing curl-up training.

[0067] When the user does not curl up to the maximum elevation angle, that is, when the second rotating block 1007 starts to reset before rotating to the maximum elevation angle, the rotary encoder will detect the short-term stop of the second rotating block 1007. Then, when the user curls up and lies flat and presses down, the pressure of the pressure sensor connected by the torsion spring suddenly increases. Based on these two signals, according to the above, the first engaging tooth 1003 and the second engaging tooth 1012 will be disconnected again, so that the second rotating block 1007 can be reset. The driving method of the second embodiment is more intelligent and practical than that of the first embodiment.

[0068] Although embodiments of the present invention have been shown and described, the specific embodiments are merely explanations of the present invention and are not limitations thereof. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An automatic power-assisted waist belt for abdominal muscle contraction, comprising a fitness belt (1), characterized in that: The fitness belt (1) is provided with a first card slot (3) on the side thereof, and a driving device is movably mounted on the side thereof, the driving device is a first power-assisting mechanism (6), and the first power-assisting mechanism (6) comprises a first shell (601), and two sets of fixing mechanisms (7) for engaging with the first card slot (3) are provided on the side thereof, a first driving assembly (602) is provided inside the first shell (601), and a conical half gear (603) is rotatably connected inside the first driving assembly (602), and the output end of the conical half gear (603) and the first shell (601) are connected by a pulley assembly (6 04) transmission connection, the first housing (601) is internally rotatably connected to a first transmission shaft (605), and two sets of bevel transmission gears (606) are symmetrically arranged on the outside of the first transmission shaft (605), and the two sets of bevel transmission gears (606) are meshed with the bevel half gear (603), the first housing (601) is internally connected to two sets of first rotating blocks (607), and the two sets of first rotating blocks (607) are respectively connected to the two ends of the first transmission shaft (605) by means of a first reduction gear set (608), and the tops of the two sets of the first reduction gear sets (608) are respectively threadedly connected to support devices for supporting the user's waist.

2. The automatic power-assisted waist belt for abdominal muscle contraction according to claim 1, characterized in that: A first circuit board (609) for controlling operation is provided on one side of the first shell (601), a first power supply (610) is installed inside the first shell (601), a first charging port (611) is provided on one side of the first shell (601), and a first storage compartment (612) for storing the swing assembly (8) is provided inside the first shell (601).

3. The automatic power-assisted waist belt for abdominal muscle contraction according to claim 2, characterized in that: The supporting device is a swing assembly (8), the swing assembly (8) comprising a swing frame (801) threadedly connected to the first rotating block (607), the swing frame (801) being arranged in an arc shape, and a plurality of groups of silicone strips (802) being arranged on the side of the swing frame (801), the swing frame (801) being internally rotatably connected to a plurality of groups of extension arms (803), the swing frame (801) being internally rotatably connected to a plurality of groups of worm gears (804), and the ends of the plurality of groups of worm gears (804) and the plurality of groups of extension arms (803) being meshed with each other, the swing frame (801) being internally rotatably connected to a first fixed rod (805), and two groups of worm gears (806) being arranged on the outside of the first fixed rod (805), and the worm gears (806) and the plurality of groups of worm gears (804) being meshed with each other.

4. The automatic power-assisted waist belt for abdominal muscle contraction according to claim 3, characterized in that: Two groups of the first card slots (3) are symmetrically arranged, and the ends of the two groups of first card slots (3) are both provided with oblique guide slots (4), and the sides of the two groups of first card slots (3) are both provided with positioning holes (5).

5. The automatic power-assisted waist belt for abdominal muscle contraction according to claim 4, characterized in that: The fixing mechanism (7) comprises a second card slot (701) that is mutually engaged with the first card slot (3), and a mounting shell (702) is arranged on the side of the second card slot (701), a linkage block (704) is movably mounted inside the mounting shell (702) by means of a limit assembly (703), one end of the linkage block (704) is provided with a first spring (705), and the other end of the linkage block (704) is provided with a button (706), a guide column (707) is arranged inside the mounting shell (702), the outer portion of the guide column (707) is sleeved with a second spring (708), and the outer portion of the guide column (707) is sleeved with a fixing pin (709), the fixing pin (709) passes through the linkage block (704), and the fixing pin (709) extends to the inner portion of the second card slot (701), and the fixing pin (709) matches the positioning hole (5).

6. The automatic power-assisted waist belt for abdominal muscle contraction according to claim 5, characterized in that: The supporting device is a flexible support (9), and the flexible support (9) includes a flexible waist protection plate (901), two groups of sleeves (902) are arranged inside the flexible waist protection plate (901), and the insides of the two groups of sleeves (902) are both rotatably connected with a second fixed rod (903), and the second fixed rod (903) and the first rotating block (607) are threadedly connected.

7. The automatic power-assisted waist belt for abdominal muscle contraction according to claim 6, characterized in that: The driving device is a second power-assisting mechanism (10), and the second power-assisting mechanism (10) comprises a second housing (1001), a second driving assembly (1002) is arranged inside the second housing (1001), and the end of the second driving assembly (1002) is connected to a first meshing tooth (1003), the second housing (1001) is internally rotatably connected to a second transmission shaft (1004) and a third transmission shaft (1005), and the second transmission shaft (1004) and the third transmission shaft (1005) are transmission-connected by arranging a bevel gear set (1006), the second housing (1001) is internally rotatably connected to two groups of second rotating blocks (1007), and the two groups of second rotating blocks (1007) and the two ends of the third transmission shaft (1005) are transmission-connected by arranging a second reduction gear set (1008).

8. The automatic power-assisted waist belt for abdominal muscle contraction according to claim 7, characterized in that: The outer part of the second transmission shaft (1004) is sleeved with a third spring (1009), and the end of the second transmission shaft (1004) is provided with a square rod (1010), and the outer part of the square rod (1010) is sleeved with a collar (1011), one end of the collar (1011) is provided with a second meshing tooth (1012), and the second meshing tooth (1012) matches the first meshing tooth (1003), and the inner part of the second housing (1001) is provided with an electric telescopic rod (1013), and the end of the electric telescopic rod (1013) is connected to a pushing frame (1014), and a friction plate (1015) for fitting with the collar (1011) is provided on the side of the pushing frame (1014).

9. The automatic power-assisted waist belt for abdominal muscle contraction according to claim 8, characterized in that: A second circuit board (1016) for controlling operation is provided on one side of the second shell (1001), a second power supply (1017) is installed inside the second shell (1001), a second charging port (1018) is provided on one side of the second shell (1001), and a second storage compartment (1019) for storing the swing assembly (8) is provided inside the second shell (1001).

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