Body builder

Abstract

The utility model discloses a body builder. The body builder comprises a bearing main body, the flexible pad is arranged on the upper surface of the bearing main body; the moving wheel assembly is arranged on the bearing main body, at least part of the moving wheel assembly protrudes out of the lower surface of the bearing main body, and the moving wheel assembly can rotate relative to the ground; the holding handle is rotatably arranged at one end of the bearing main body, a locking assembly is arranged between the holding handle and the bearing main body, the holding handle has a horizontal state and an upward overturning state relative to the bearing main body, and the locking assembly locks the holding handle after the holding handle is switched. At least two symmetrically arranged strap connecting parts are arranged on the bearing main body, and detachable straps are arranged on the strap connecting parts. The body builder has the functions of a power roller and a deep squat machine, the bearing capacity of the body builder is higher due to the plate-shaped bearing body and the structure of the front wheel set and the rear wheel set, the body builder slides more stably and firmly relative to the ground or the wall face, and the possibility of rollover in the movement process is reduced.

Description

Technical Field

[0001] The utility model relates to a fitness device, in particular to a household fitness device which can perform both abdominal crunch exercise and deep squat exercise. Background Art

[0002] In the prior art Chinese utility model patent CN218980363U discloses a double-wheel elbow-supported abdominal wheel, which generally includes a connecting frame, wheels and a support rod. There are two wheels and they are arranged on the front and rear sides of the connecting frame. Elbow support members are arranged on the left and right sides of the tail of the support rod, and a handle for hand grasping is arranged at the front end. Although this steel frame structure effectively solves the problem that the traditional single-wheeled abdominal wheel is laborious to use, since it only has two front and rear wheels, this steel frame structure is not stable enough during exercise, and has high requirements for users. Users often face the risk of rollover during exercise.

[0003] In addition, the double-wheel elbow-supported abdominal wheel in the prior art can only be used for abdominal exercise, and has the problem of a single exercise mode, and can no longer meet people's diverse exercise needs at home. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a fitness device which has both the functions of an abdominal wheel and a squat machine, has a strong load-bearing capacity and a low risk of rollover.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A fitness device, characterized in that it includes: a carrying body; a flexible pad, arranged on the upper surface of the carrying body; and a sports wheel assembly, which is arranged on the carrying body and at least partially protrudes from the lower surface of the carrying body and can rotate relative to the ground; a handle, rotatably arranged at one end of the carrying body, a locking assembly is provided between the handle and the carrying body, the handle has a folded state and an upward flipped state relative to the carrying body, and the locking assembly locks the handle after the handle switches the state.

[0007] By adopting the above technical solution, the fitness equipment can have two training modes by simply switching the state of the handle. It can be used as an elbow-supported abdominal wheel or as a squat machine. At the same time, the load-bearing body as a plate-shaped main structure is more stable during exercise than the traditional rigid frame structure, reducing the risk of rollover during exercise.

[0008] As a further improvement of the above technical solution: at least two symmetrically arranged belt connection parts are provided on the bearing body, and a detachable back strap is arranged on the belt connection part. By arranging the belt connection part and the back strap, the fitness device can be better bundled on the human back to prevent the fitness device from falling off between the human back and the wall during the squat exercise.

[0009] As a further improvement of the above technical solution: the flexible pad includes an elbow support pad and / or a backrest pad, and the elbow support pad is arranged on the upper surface of the bearing body at the end far from the handle. The elbow support pad and / or the backrest pad are provided to improve the comfort of the human elbow or back when the fitness device is used as an abdominal wheel or a squat machine. The elbow support pad is arranged on the upper surface of the bearing body at the end far from the handle to ensure that the human arm can be in a forward-tilted state during the elbow support posture, which is more comfortable.

[0010] As a further improvement of the above technical solution: the width of the handle is smaller than the width of the bearing body at the end opposite to the handle. The elbow support pad includes a left elbow support pad and a right elbow support pad, and the width of the handle is smaller than the width between the outermost edges of the left elbow support pad and the right elbow support pad. In the elbow support posture, the width of the handle being smaller than the width between the outermost edges of the left elbow support pad and the right elbow support pad can make the distance between the elbows of the human hands greater than the distance between the palms of the human hands, ensuring the comfort of the elbow support posture.

[0011] As a further improvement of the above technical solution: a recessed part is formed by the sinking of the upper surface at one end of the bearing body, and a shaft seat is arranged in the recessed part. Shaft rods for rotatably connecting with the handle are arranged at both ends of the shaft seat. The handle includes a U-shaped grip rod and a shaft sleeve sleeved on the shaft rod. The provision of the recessed part allows the handle to be lower than the upper surface of the bearing body in the height direction when the handle rotates relative to the bearing body to a horizontal state, so as to ensure that when the fitness device is used as a squat machine, the handle will not touch the human back when the human back abuts against the upper surface of the upper housing.

[0012] As a further improvement of the above technical solution: the locking component is a friction tooth arranged between the shaft rod and the shaft sleeve. The friction tooth includes a circumferential tooth part arranged on the shaft rod and internal teeth arranged in the shaft sleeve. The shaft rod is of a hollow structure, and a volume change groove, left and right positioning parts and positioning holes are arranged on the shaft rod. One end of the shaft sleeve is also provided with a shaft sleeve cover and is connected to the shaft rod through the left and right positioning parts and the positioning holes. The friction tooth structure enables a certain external force to be applied to the handle to rotate relative to the bearing body. The volume change groove enables the circumferential tooth part to be more easily elastically deformed in the radial direction, and the shaft sleeve cover limits the handle in the axial direction to prevent it from falling off the shaft rod.

[0013] As a further improvement of the above technical solution: The carrying body includes an upper shell and a lower shell. The side of the upper shell is provided with an upper half with a connecting part, and the side of the lower shell is provided with a lower half with a connecting part. There is a first opening for the back strap to pass through between the upper half and the lower half with the connecting part, and a second opening for the back strap to pass out between the lower halves with the connecting part. The connecting parts are integrally formed on the upper and lower shells, so there is no need for redundant component design, making the structure of the fitness device simpler. The positions of the first opening and the second opening are not visible to the user from the front of the fitness device, and the first opening and the second opening are designed in a hidden manner.

[0014] As a further improvement of the above technical solution: An installation slot for accommodating the moving wheel assembly and a wheel set fixing cover are provided on the lower surface of the lower shell. The moving wheel assembly includes a front moving wheel assembly and a rear moving wheel assembly. After the moving wheel assembly is installed in the installation slot, it is fixed to the lower shell through an axle cover.

[0015] As a further improvement of the above technical solution: The front moving wheel assembly and / or the rear moving wheel assembly has a rebound structure. The rebound structure includes a rotating shaft, a one-way bearing arranged in the middle of the rotating shaft, and a wheel main body and a wheel side cover arranged at both ends of the rotating shaft. An installation space is formed between the wheel main body and the wheel side cover, and a positioning chamber shell is arranged in the installation space. A scroll spring is arranged in the positioning chamber shell. Preferably, an axial end opening is provided on the rotating shaft, a chamber shell bayonet is provided on the positioning chamber shell, the scroll spring includes an inner hook and an outer hook, and the inner hook and the outer hook respectively hook the axial end opening and the chamber shell bayonet for fixation. A positioning collar is also provided at the fixing position of the inner hook and the axial end opening. By adopting the above technical solution, the fitness device can have a rebound assist when doing sit-up exercises as an abdominal wheel, and can provide an upward assist when a person squats and stands up or simulate the weight-bearing effect when doing barbell squats when used as a squat machine.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: It has both the functions of an abdominal wheel and a squat machine. The plate-shaped carrying body and the front and rear wheel set structures make its load-bearing capacity stronger. Whether it is used as an abdominal wheel or a squat machine, it slides more smoothly and firmly relative to the ground or the wall, reducing the possibility of tipping over during exercise.

[0017] It has a rebound assist when doing sit-up exercises as an abdominal wheel, and can provide an upward rebound assist when a person squats and stands up or simulate the weight-bearing effect when doing barbell squats when used as a squat machine. The rebound assist during sit-up exercises and the upward rebound assist during squatting and standing up can reduce the usage difficulty for beginners; the downward rebound during squatting to simulate the weight-bearing during barbell squats can further increase the exercise difficulty and improve the exercise effect. Description of the Drawings

[0018] Figure 1This is the overall schematic diagram of a fitness device of the present utility model.

[0019] Figure 2 This is the exploded view of the structure of a fitness device of the present utility model.

[0020] Figure 3 This is the schematic diagram of two states of the grip of a fitness device of the present utility model.

[0021] Figure 4 This is the exploded view of the structure of the grip of a fitness device of the present utility model.

[0022] Figure 5 For Figure 4 The enlarged view of area C in

[0023] Figure 6 For Figure 3 The enlarged view of area B in

[0024] Figure 7 For Figure 3 The three-dimensional enlarged view of area B in

[0025] Figure 8 This is the front schematic diagram of a fitness device of the present utility model.

[0026] Figure 9 This is the exploded view of the moving wheel assembly of a fitness device of the present utility model.

[0027] Figure 10 This is the structural schematic diagram of the return wheel of a fitness device of the present utility model.

[0028] Figure 11 For Figure 10 The enlarged view of area D in

[0029] Figure 12 This is the schematic diagram of a fitness device of the present utility model used as an abdominal wheel.

[0030] Figure 13 This is the schematic diagram of a fitness device of the present utility model used as a squat machine with a harness.

[0031] Figure 14 For Figure 1 The enlarged view of area A in

[0032] Figure 15 This is the schematic diagram of a fitness device of the present utility model used as a squat machine.

[0033] In the figure, each label indicates:

[0034] 1. Load-bearing body; 11. Upper housing; 110. Upper surface; 12. Lower housing; 120. Lower surface; 111. Concave part; 112. Shaft seat; 113. Shaft rod; 1131. Upper circumferential tooth part; 1132. Lower circumferential tooth part; 1133. Left positioning part; 1134. Right positioning part; 1135. Positioning hole; 1136. Volume change groove; 2. Handle; 21. U-shaped handle rod; 211. Left side rod; 212. Right side rod; 213. Clamping part; 22. Bush; 221. Upper internal teeth; 222. Lower internal teeth; 23. Bush cover; 3. Flexible pad; 31. Backrest pad; 311. Wide part; 312. Contracted tip; 32. Elbow support pad; 321. Left elbow support pad; 322. Right elbow support pad; 4. Movement wheel assembly; 41. Front movement wheel assembly; 42. Rear movement wheel group; 40. Rotating shaft; 401. One-way bearing; 402. Two-way bearing; 403. Shaft end opening; 131. Intermediate slot; 132. Left wheel accommodation groove; 133. Right wheel accommodation groove; 134. One-way bearing seat; 135. Fixed column; 136. Two-way bearing seat; 137. Two-way bearing seat; 420. Wheel main body; 421. Wheel side cover; 422. Positioning bin housing; 4221. Bin housing bayonet; 423. Scroll spring; 424. Positioning collar; 4230. Spring main body; 4231. Inner hook; 4232. Outer hook; 43. Front axle cover; 44. Rear axle cover; 5. Belt connection part; 51. Upper half; 52. Lower half; 511. First opening; 521. Second opening; 6. Shoulder strap. Detailed implementation manners

[0035] As shown in the present disclosure and the claims, unless the context clearly indicates otherwise, words such as "a", "an", "one", and / or "the" are not specifically singular and may also include plural. The terms "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are only used to distinguish different components. Similarly, words such as "comprising" or "including" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connection" or "coupling" and similar terms are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0036] The following further elaborates on the present utility model in detail in conjunction with the description drawings of the specification and specific embodiments.

[0037] Embodiment 1

[0038] As Figures 1 to 3As shown in the figure, a fitness device includes a load-bearing main body 1, a grip 2, a flexible pad 3, and a moving wheel assembly 4. The grip 2 is arranged on the load-bearing main body 1 and can rotate relative to the load-bearing main body 1. The flexible pad 3 is arranged on the upper surface 110 of the load-bearing main body 1. The moving wheel assembly 4 is arranged at the bottom of the load-bearing main body 1 and drives the load-bearing main body 1 to move back and forth relative to the ground or the wall surface.

[0039] Preferably, the load-bearing main body 1 includes an upper shell 11 and a lower shell 12. After the upper shell 11 and the lower shell 12 are buckled, they are further fixedly connected by screws to form a plate-shaped shell structure. This plate-shaped shell structure will be more stable during movement compared to the steel frame structure in the prior art, and can greatly reduce the possibility of tipping over. The grip 2 is rotatably arranged at the front end of the load-bearing main body 1, and the grip 2 has a horizontal folding state and an upward flipping state relative to the load-bearing main body 1. When the grip 2 is folded and presents a horizontal state relative to the load-bearing main body 1, at this time, the grip 2 is lower than the upper surface 110 of the upper shell 11 in the height direction. Thus, the fitness device can be used as a squat machine. After the fitness device is used as a squat machine and placed between the human back and the wall surface, the moving wheel assembly 4 contacts the wall surface, and the flexible pad 3 arranged on the upper surface 110 of the upper shell 11 is for the human back to lean against. When the human body squats up and down, the whole fitness device slides up and down relative to the wall surface to assist the human body to do squat exercises relative to the wall surface. When the grip 2 is rotated and lifted by a certain angle relative to the load-bearing main body 1, the grip 2 presents an upward flipping state relative to the load-bearing main body 1. At this time, the fitness device can be used as an elbow support type ab wheel. When used as an elbow support type ab wheel, the human body's both hands' elbows support on the upper surface at the rear end of the load-bearing main body 1, and the human body's both hands' palms hold the upward flipped grip 2. Pushing the fitness device back and forth can use the fitness device as an ab wheel, thereby performing abdominal curl exercises. Preferably, the angle at which the grip 2 is lifted upward can be adjusted arbitrarily between 15 degrees and 90 degrees.

[0040] Preferably, as Figures 4 to 7 shown, the grip 2 includes a U-shaped grip rod 21 and a bushing 22. The U-shaped grip rod 21 includes a left rod 211 and a right rod 212. The U-shaped grip rod 21 is divided into the left rod 211 and the right rod 212 for the convenience of sleeving the sponge sleeve and assembling. After the sponge sleeves are respectively sleeved on the left rod 211 and the right rod 212, they are combined to form a complete U-shaped grip rod 21. The setting of the sponge sleeve can increase the comfort of holding. There is a fastening part 213 between the tops of the left rod 211 and the right rod 212. The fastening part 213 is a snap structure, which can connect the left rod 211 and the right rod 212 into one body. Preferably, screws can also be added to the fastening part 213 to further strengthen the reliability of the connection between the left rod 211 and the right rod 212. The bushings 22 are respectively arranged at the bottoms of the left rod 211 and the right rod 212. The bushings 22 and the left rod 211 and the right rod 212 are integrally formed, or can be formed separately and then connected into one body.

[0041] At the front end of the upper housing 11, there is a recessed portion 111 lower than the upper surface 110. Inside the recessed portion 111, there is a shaft seat 112 protruding upward. The length of the shaft seat 112 is less than the width dimension of the front end of the bearing body 1, and the shaft seat 112 is lower than the upper surface 110 of the upper housing 11 in the height direction; at both ends of the shaft seat 112, there are shaft rods 113, and the shaft sleeve 22 is sleeved on the shaft rods 113, so that the whole grip 2 can rotate relative to the bearing body 1. When the grip 2 rotates to the horizontal folding state relative to the bearing body 1, the grip 2 is lower than the upper surface 110 of the bearing body 1 in the height direction, so as to ensure that when the fitness device is used as a squat machine, the grip 2 will not touch the human back when the human back abuts against the upper surface 110 of the upper housing 11.

[0042] Preferably, as Figure 8 shown, the whole bearing body 1 is narrow at the front end and wide at the rear end, that is, the upper housing 11 and the lower housing 12 that make up the bearing body 1 are also narrow at the front end and wide at the rear end. The flexible pad 3 is arranged on the upper surface 110 of the upper housing 11. Setting the flexible pad 3 can improve the comfort when the human body abuts against the upper surface 110. The flexible pad 3 includes a backrest pad 31 and elbow support pads 32. The backrest pad 31 includes a wide portion 311 and a tapered portion 312. The wide portion 311 is located on the front upper surface of the upper housing 11, and the dimension of the wide portion 311 in the width direction is basically the same as the front width of the upper surface 110 of the upper housing 11, while the dimension of the tapered portion 312 gradually decreases in the width direction and extends to the rear end of the upper surface 110 of the upper housing 11. After the tapered portion 312 extends to the rear end of the upper surface 110 of the upper housing 11, it is located at the middle position of the upper surface 110. When the fitness device is used as a squat machine, the human back mainly abuts against the backrest pad 31, thereby improving the comfort when the back abuts. The elbow support pads 32 include a left elbow support pad 321 and a right elbow support pad 322. The left elbow support pad 321 and the right elbow support pad 322 are respectively arranged on the left and right sides of the tail end of the tapered portion 312. Preferably, the width dimension E of the U-shaped grip bar 21 is less than the width dimension F of the elbow support pads 32. Specifically, the width dimension E of the U-shaped grip bar 21 refers to the width distance between the left side bar 211 and the right side bar 212, and the width dimension F of the elbow support pads 32 refers to the width distance between the outermost edges of the left elbow support pad 321 and the right elbow support pad 322. Specific working principle: When the fitness device is used as an abdominal wheel, the palms of the human hands are respectively held on the left side bar 211 and the right side bar 212, and the elbows of the human hands are respectively placed on the left elbow support pad 321 and the right elbow support pad 322, thus forming an elbow support posture during the abdominal exercise. In this elbow support posture, to ensure the comfort of the elbow support posture, the distance between the elbows of the human hands should be greater than the distance between the palms of the human hands. Otherwise, the human elbow support posture will be extremely uncomfortable, making it difficult to complete the elbow support abdominal exercise.

[0043] In this embodiment, the positions of the left elbow support pad 321 and the right elbow support pad 322 do not exceed the side edges at the rear end of the upper housing 11. Therefore, the width E of the U-shaped grip 21 is also less than the maximum width dimension at the rear end of the bearing body 1. Those skilled in the art can understand that the widths of the front end and the rear end of the bearing body 1 can also be the same. In this embodiment, as long as the width dimension E of the U-shaped grip 21 is less than the width dimension F of the elbow support pad 32, the same technical effect can be achieved. In addition, the backrest pad 31 and the elbow support pad 32 can also be directly combined into one integral part and arranged on the upper surface 110 of the upper housing 11, and the same technical effect can also be achieved.

[0044] Preferably, as Figures 4 to 7 shown, a locking assembly is further provided between the grip 2 and the shaft rod 113.

[0045] The locking assembly is a friction tooth structure provided between the shaft rod 113 and the shaft sleeve 22. The friction tooth structure can increase the friction force between the shaft rod 113 and the shaft sleeve 22, so that a certain external force needs to be applied to the grip 2 to rotate relative to the bearing body 1. Specifically, the shaft rod 113 includes an upper circumferential tooth portion 1131, a lower circumferential tooth portion 1132, a left positioning portion 1133, a right positioning portion 1134, and a positioning hole 1135 provided at the bottom of the shaft rod 113. The upper circumferential tooth portion 1131 and the lower circumferential tooth portion 1132 are both provided with external tooth patterns along the circumferential direction. Variable volume grooves 1136 are provided between the upper circumferential tooth portion 1131, the lower circumferential tooth portion 1132 and the left positioning portion 1133, the right positioning portion 1134. The variable volume grooves 1136 can make the upper circumferential tooth portion 1131 and the lower circumferential tooth portion 1132 more likely to generate elastic deformation in the radial direction when subjected to the rotational pressure of the shaft sleeve 22.

[0046] Preferably, on the inner circumferential surface of the bushing 22, an upper inner tooth 221 and a lower inner tooth 222 are respectively provided corresponding to the upper circumferential tooth portion 1131 and the lower circumferential tooth portion 1132. The upper circumferential tooth portion 1131, the lower circumferential tooth portion 1132, the upper inner tooth 221, and the lower inner tooth 222 together form a friction tooth structure. The specific working principle is as follows: When the grip 2 is integrally sleeved on the shaft rod 113 through the bushing 22, the meshing of the upper inner tooth 221, the lower inner tooth 222 with the upper circumferential tooth portion 1131 and the lower circumferential tooth portion 1132 will form a meshing resistance, and the grip 2 can be maintained at the current position without rotation when no external force is applied to the grip 2. When an external force for rotating the grip 2 is applied, the upper inner tooth 221 and the lower inner tooth 222 in the bushing 22 will overcome the meshing resistance with the upper circumferential tooth portion 1131 and the lower circumferential tooth portion 1132 and then rotate relative to the shaft rod 113. At the same time, after the bushing 22 starts to rotate, the upper inner tooth 221 and the lower inner tooth 222 can also cause the upper circumferential tooth portion 1131 and the lower circumferential tooth portion 1132 to contract inward in the radial direction and generate elastic deformation, so that the meshing resistance between the upper circumferential tooth portion 1131, the lower circumferential tooth portion 1132, the upper inner tooth 221, and the lower inner tooth 222 is further reduced, and the bushing 22 overcomes the meshing resistance and frictional force of the friction tooth structure and then continues to rotate relative to the shaft rod 113 until it reaches an appropriate position.

[0047] Preferably, both ends of the bushing 22 are open-designed. After the bushing 22 is sleeved on the shaft rod 113, one end of the bushing 22 abuts against the side wall of the shaft seat, and a bushing cover 23 is provided at the other end. The bushing cover 23 is used to limit the bushing 22 in the axial direction after the bushing 22 is sleeved on the shaft rod 113 to prevent the whole grip 2 from falling off the shaft rod 113. Specifically, after the bushing 22 is sleeved on the shaft rod 113, the bushing cover 23 is fixedly connected to the shaft rod 113 through the left positioning portion 1133, the right positioning portion 1134, and the positioning hole 1135. The diameter of the outer end of the bushing cover 23 is larger than the diameter of the bushing 22. Thus, after the bushing cover 23 is fixed to the shaft rod 113, it can limit the bushing 22 in the axial direction and prevent it from falling off the shaft rod 113.

[0048] Those skilled in the art can understand that: In the above embodiment, the friction tooth structure can also be replaced by an uneven point structure, as long as it can make the bushing 22 and the shaft rod 113 have a certain frictional resistance, the same technical effect can be achieved.

[0049] Preferably, as Figure 9As shown in the figure, a front mounting slot and a rear mounting slot are provided on the lower surface 120 of the lower housing 12. Correspondingly, the moving wheel assembly 4 also includes a front moving wheel assembly 41 and a rear moving wheel assembly 42. The front moving wheel assembly 41 and the rear moving wheel assembly 42 are respectively fixedly arranged in the front mounting slot and the rear mounting slot, and both the front moving wheel assembly 41 and the rear moving wheel assembly 42 are of a double-wheel structure. Specifically, both the front mounting slot and the rear mounting slot include an intermediate slot 131. On the left and right sides of the intermediate slot 131, there are symmetrically arranged a left wheel receiving slot 132 and a right wheel receiving slot 133. In the intermediate slot 131, a one-way bearing seat 134 and fixing columns 135 are protrudingly provided. The one-way bearing fixing seat 134 is arranged at the middle position of the intermediate slot 131, and there are multiple fixing columns 135 which are arranged at the four corners of the intermediate slot 131. A two-way bearing seat 136 is provided between the intermediate slot 131 and the wheel receiving slot 132. Correspondingly, a two-way bearing 137 is also provided between the intermediate slot 131 and the wheel receiving slot 133.

[0050] Preferably, both the front moving wheel assembly 41 and the rear moving wheel assembly 42 have a resilience function. Both the front moving wheel assembly 41 and the rear moving wheel assembly 42 include a rotating shaft 40 and resilience wheels arranged at both ends of the rotating shaft 40. The resilience wheels can rotate relative to the rotating shaft 40. A one-way bearing 401 is sleeved at the middle position of the rotating shaft 40, and the one-way bearing 401 is fixed on the one-way bearing seat 134. At both ends of the rotating shaft 40 close to the resilience wheels, two-way bearings 402 are respectively provided, and the two-way bearings 402 are respectively fixed on the two-way bearing seat 136 and the two-way bearing seat 137. The resilience wheel includes a wheel main body 420 and a wheel side cover 421. An installation space is formed between the wheel main body 431 and the wheel side cover 421. A positioning bin housing 422 is arranged in the installation space. The positioning bin housing 422 is preferably a metal disc member and is fixed on the inner circumferential side wall of the inner cavity of the wheel main body 420. The positioning bin housing 422 can strengthen the overall strength of the wheel main body 420 and improve the load-bearing capacity of the entire wheel set.

[0051] As Figure 10 and Figure 11As shown, a housing opening 4221 is further provided on the circumferential wall 4231 of the positioning housing 422, a vortex spring 423 is provided inside the positioning housing 422, and the vortex spring 434 includes a spring body 4230, an inner hook 4231 and an outer hook 4232. During installation, after the vortex spring 423 is installed into the positioning housing 422, the outer hook 4232 of the vortex spring 423 needs to be hooked to the housing opening 4221 to be fixedly connected thereto, and the inner hook 4231 of the vortex spring 432 needs to be hooked to the shaft end opening 403 of the rotating shaft 41 to be fixedly connected thereto. Preferably, a positioning ring 424 is also provided at the connection between the inner hook 4231 of the vortex spring 432 and the shaft end opening 403 of the rotating shaft 41. The positioning ring is provided with an opening corresponding to the shaft end opening 403. The inner hook 4231 of the vortex spring 432 is first positioned by the positioning ring, and then the shaft end opening 403 of the rotating shaft 41 is inserted into the inner hook 4231. This makes installation easier, and by providing the positioning ring 424, the connection between the inner hook 4231 and the shaft end opening 403 of the rotating shaft 41 can be made more secure.

[0052] Specific working principle: when the wheel body 420 rotates forward relative to the ground, the one-way bearing 401 allows the rotating shaft 40 to rotate in only one direction relative to the fitness device. When the fitness device is pushed forward, the rotating shaft 40 is restricted by the one-way bearing 401 and cannot rotate. When the fitness device is pushed backward, the rotating shaft 40 can rotate. Therefore, when the fitness device is used, the rebound wheel rotates forward when it is pushed forward relative to the support surface. At this time, the rotating shaft 40 is restricted by the one-way bearing 401 and cannot rotate. At this time, the rebound wheel will rotate relative to the rotating shaft 40, because at this time, the inner hook 4231 of the vortex spring 423 hooks the shaft end opening 403 of the rotating shaft 41 and is fixed on the rotating shaft 40, and the outer hook 4232 of the vortex spring 423 hooks the housing opening 4221. At this time, the rotation of the rebound wheel causes the vortex spring 423 to tighten in the radial direction and generate accumulated force. When the fitness machine stops and is pushed backward, the rotating shaft 40 can also rotate, and the stored force of the vortex spring 423 can be released, thereby enabling the fitness machine to have a rebound assist when moving backward.

[0053] Preferably, a front axle cover 43 and a rear axle cover 44 are also provided corresponding to the front moving wheel assembly 41 and the rear moving wheel assembly 42. When the front moving wheel assembly 41 and the rear moving wheel assembly 42 are assembled to the front mounting slot and the rear mounting slot, the front axle cover 43 and the rear axle cover 44 are locked to the fixing column 135 by screws, thereby fixing the front moving wheel assembly 41 and the rear moving wheel assembly 42 to the lower shell 12.

[0054] In this embodiment, only the rear moving wheel assembly 42 may be provided with a rebound function, while the front moving wheel assembly 41 does not need a rebound function. In this way, the front moving wheel assembly 41 does not need to be provided with components such as a one-way bearing 401 and a vortex spring 423, thereby reducing product manufacturing costs.

[0055] Embodiment 2:

[0056] As Figures 13 to 15 shown, when the fitness device is used as a squat machine, the bearing body 1 is also provided with 2 straps 6 with connecting parts and passing through the belt connection 5. The straps 6 can better bind the fitness device to the human back, ensuring that the fitness device does not separate from between the human back and the wall during the up and down movement relative to the wall. Preferably, the belt connecting parts 5 are arranged symmetrically on the left and right sides of the bearing body 1. The belt connecting part 5 includes an upper half 51 arranged on the side of the upper shell 11 and a lower half 52 arranged on the side of the lower shell 12. There is a first opening 511 between the upper half 51 and the lower half 52, and a second opening 521 is provided on the lower half of the belt connecting part.

[0057] Furthermore, the two ends of the strap 6 can be provided with Velcro or buckle structures (not shown in the figure). In the preferred embodiment, when the fitness device is used as a squat machine, the two ends of the strap 6 are respectively inserted through the first opening 511 of the belt connecting part 5 and passed out through the second opening 521, and then the Velcro or buckle at the two ends of the strap 6 is pulled to the middle position of the strap 6 for sticking or buckling (not shown in the figure). Thus, the strap 6 can be connected to the bearing body 1 through the two symmetrically arranged belt connecting parts 5 on the left and right, and the fitness device is bound to the human back through the strap 6. When in use, after the fitness device is placed between the human back and the wall and is bound to the human back through the strap 6, the moving wheel assembly 4 contacts the wall, and the backrest pad 31 provided at the upper surface 110 of the upper shell 11 is for the human back to lean against. When the human squats up and down, the whole fitness device slides up and down relative to the wall to assist the human to do squat exercises relative to the wall. At this time, if the rebound direction of the moving wheel assembly 4 is upward, it can assist the human to stand up after squatting, reducing the difficulty of the human standing up; if the rebound direction of the moving wheel assembly 4 is downward, the moving wheel assembly 4 will exert a downward pressure on the fitness device, so that the weight during barbell squats can be simulated, restoring the squat exercise scene in the gym. Whether the rebound direction of the moving wheel assembly 4 is upward or downward is determined by whether the handle 2 of this fitness device is upward or downward, and it can also be adjusted by setting the energy storage direction of the scroll spring.

[0058] Those skilled in the art can understand that: in this embodiment, the belt connecting parts 5 can also be arranged on the side walls at the front and rear ends of the bearing body 1. In this way, the number of belt connecting parts 5 is at least 4 and the number of straps is at least 2, just like the strap structure of a backpack, which will not be elaborated here. The belt connection 5 can be integrally formed on the upper shell 11 and the lower shell 12 as in this embodiment, or can be a separate component arranged on the upper shell 11 and the lower shell 12, such as a ring-shaped component arranged between the upper shell 11 and the lower shell 12 for fixation, and the same technical effect can be achieved.

[0059] In a preferred embodiment, the back strap 6 can be detached from the strap connection part 5, so that when the fitness device is used as an abdominal wheel, the human elbow support on the fitness device will not be interfered by the back strap 6.

[0060] Compared with the traditional technology, the present utility model provides a fitness device with two functions of an abdominal wheel and a squat machine, a plate-shaped bearing main body and a front and rear wheel set structure. Each wheel set is a double-wheel structure, so that its bearing capacity is stronger. Whether it is used as an abdominal wheel or a squat machine, it slides more smoothly and firmly relative to the ground or the wall, reducing the possibility of tipping over during exercise.

[0061] When used as an abdominal wheel for sit-up exercises, it has a rebound assist. When used as a squat machine, it can provide an upward rebound assist when a person squats and stands up, or simulate the weight-bearing effect when doing barbell squats. The rebound assist during sit-up exercises and the upward rebound assist during squatting and standing up can reduce the difficulty of use for beginners; the downward rebound during squatting to simulate the weight-bearing during barbell squats can further increase the exercise difficulty and improve the exercise effect.

[0062] Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present utility model, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A fitness device, characterized in that: include: Bearing body; A flexible pad, arranged on the upper surface of the bearing body; and a moving wheel assembly, which is arranged on the carrying body and at least partially protrudes from the lower surface of the carrying body and rotates relative to the ground; The handle is rotatably arranged at one end of the carrying body, and a locking component is provided between the handle and the carrying body. The handle has a folded state and an upward flipped state relative to the carrying body, and the locking component locks the handle after the handle switches the state.

2. A fitness device according to claim 1, characterized in that: At least two symmetrically arranged belt connecting parts are arranged on the carrying body, and detachable shoulder straps are arranged on the belt connecting parts.

3. A fitness device according to claim 1, characterized in that: The flexible pad comprises an elbow support pad and / or a backrest pad, and the elbow support pad is arranged on the upper surface of the bearing body away from one end of the handle.

4. A fitness device according to claim 3, characterized in that: The width of the handle is smaller than the width of the bearing body at an opposite end of the handle.

5. A fitness device according to claim 3, characterized in that: The elbow support pad comprises a left elbow support pad and a right elbow support pad, and the width of the handle is smaller than the width between the widest outer edges of the left elbow support pad and the right elbow support pad.

6. A fitness device according to claim 1, characterized in that: The upper surface of one end of the bearing body is sunken to form a recessed portion, an axle seat is arranged in the recessed portion, and shaft rods rotatably connected to the handle are arranged at both ends of the axle seat.

7. A fitness device according to claim 6, characterized in that: The handle comprises a U-shaped grip rod and a shaft sleeve sleeved on the shaft rod.

8. A fitness device according to claim 7, characterized in that: The locking assembly is a friction tooth arranged between the shaft rod and the shaft sleeve, and the friction tooth comprises a circumferential tooth portion arranged on the shaft rod and an internal tooth portion arranged in the shaft sleeve.

9. A fitness device according to claim 8, characterized in that: The shaft rod is a hollow structure, and is provided with a variable groove, left and right positioning parts and a positioning hole. One end of the shaft sleeve is also provided with a shaft sleeve cover and is connected to the shaft rod through the left and right positioning parts and the positioning hole.

10. A fitness device according to claim 2, characterized in that: The carrying body includes an upper shell and a lower shell, the upper shell side is provided with an upper half of a belt connection part, the lower shell side is provided with a lower half of a belt connection part, a first opening for the shoulder strap to pass through is provided between the upper and lower halves of the belt connection part, and a second opening for the shoulder strap to pass through is provided between the lower halves of the belt connection part.

11. A fitness device according to claim 10, characterized in that: The lower surface of the lower shell is provided with an installation slot and an axle cover for accommodating the moving wheel assembly. The moving wheel assembly includes a front moving wheel assembly and a rear moving wheel assembly. Both the front moving wheel assembly and the rear moving wheel assembly are double-wheel structures. After the moving wheel assembly is installed in the installation slot, it is fixed to the lower shell through the axle cover.

12. A fitness device according to claim 11, characterized in that: The front moving wheel assembly and / or the rear moving wheel assembly has a rebound structure, and the rebound structure includes a rotating shaft, a one-way bearing arranged in the middle of the rotating shaft, and a wheel body and a wheel side cover arranged at both ends of the rotating shaft. An installation space is formed between the wheel body and the wheel side cover, and a positioning chamber shell is arranged in the installation space, and a vortex spring is arranged in the positioning chamber shell.

13. A fitness device according to claim 12, characterized in that: The rotating shaft is provided with an axis end opening, the positioning housing is provided with a housing snap-on, the vortex spring comprises an inner hook and an outer hook, the inner hook and the outer hook respectively hook the axis end opening and the housing snap-on for fixing, and a positioning ring is also provided at the fixing position of the inner hook and the axis end opening.

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