Three-in-one fitness device

Abstract

The invention discloses a three-in-one fitness device, and relates to the technical field of fitness equipment. The fitness equipment comprises a base, an aerobic exercise mechanism used for running of the body builder is arranged on the upper portion of the base, two symmetrically-distributed fixing frames are fixedly installed at the top end of the base, and anaerobic exercise mechanisms used for pull-up of the body builder are arranged at the top ends of the two fixing frames. Rehabilitation massage mechanisms for relieving body pains of the body builder are arranged in the middles of the two fixing frames. According to the treadmill, aerobic exercise, anaerobic exercise and rehabilitation massage can be integrated, less space is utilized, a body builder can use and do physical exercise through flexible replacement of body building equipment according to self requirements, the requirements of the body builder are met, the body builder can conveniently use other facilities through folding and storage of the treadmill, and the treadmill is convenient to use. And meanwhile, the running machine can be reset under the driving of the electric push rod, so that the body builder can conveniently use the running machine, and aerobic exercise is performed.

Description

Technical Field

[0001] The invention relates to the technical field of fitness equipment, in particular to a three-in-one fitness device. Background Art

[0002] As people pursue the quality of life, more and more people usually take exercises to enhance their physical fitness or bodybuilding after being busy with heavy work. As a result, numerous fitness venues have emerged, and many people have gone to gyms to exercise. However, most of the existing three-in-one multifunctional fitness devices perform anaerobic exercises on the body of the fitness person, and cannot combine aerobic exercise, anaerobic exercise and rehabilitation training for use. In addition, when existing users perform anaerobic exercises through pull-ups, they cannot train the angle of the handles, thereby exercising different positions of the back muscles, which makes the device relatively limited in actual use and cannot meet the needs of consumers.

[0003] In view of the above problems, the inventor proposes a three-in-one fitness device to solve the above problems. Summary of the invention

[0004] In order to solve the problem that most of the existing three-in-one multifunctional fitness devices only perform anaerobic exercises on the body of the fitness person, cannot combine aerobic exercise, anaerobic exercise and rehabilitation training for use, and cannot exercise different positions of the back muscles of the fitness person by adjusting the angle of the handle; the purpose of the present invention is to provide a three-in-one fitness device.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a three-in-one fitness device, comprising a base, an aerobic exercise mechanism for a fitness person to run is provided on the upper part of the base, two symmetrically distributed fixing frames are fixedly installed on the top of the base, an anaerobic exercise mechanism for a fitness person to do pull-ups is provided on the top of the two fixing frames, and a rehabilitation massage mechanism is provided in the middle part of the two fixing frames for relieving the fitness person's body pain.

[0006] Preferably, the aerobic exercise mechanism comprises a treadmill, one side of the treadmill is slidably clamped on the upper part of the base, a first folding rod is provided in the middle of the treadmill, both sides of the treadmill are provided with sliding grooves, both lower parts of the first folding rod are slidably clamped in the inside of the sliding grooves, both lower parts of the first folding rod are rotatably mounted with second folding rods, the other sides of the two second folding rods are rotatably mounted on the middle parts of both sides of the treadmill, a driving assembly is provided in the middle part of one side of the base, a sliding frame is slidably clamped on one side of the top end of the base, two symmetrically distributed support rods are fixedly mounted on the top upper part of the base, both lower parts of the two sides of the sliding frame are slidably clamped on the outer surface of the support rods, The other side of the treadmill is rotatably mounted on the middle part of the sliding frame, one side of one of the second folding rods is fixedly mounted with a No. 1 gear, one side of the upper part of the base is fixedly mounted with a No. 1 toothed plate, and the No. 1 toothed plate is meshed with the No. 1 gear, the middle part of the other side of the treadmill is fixedly mounted with a rotating shaft, the rotating shaft slides through the second folding rod and the sliding frame, the other end of the rotating shaft is fixedly mounted with a driving block, a driving groove is opened in the middle part of one side of the base, the lower part of one side of the driving block is slidably clamped in the driving groove, the driving assembly includes an electric push rod, the electric push rod is fixedly mounted in the middle part of one side of the base, and the middle part of one side of the No. 1 gear is rotatably mounted on one side of the driving end of the electric push rod.

[0007] Preferably, the anaerobic exercise mechanism includes a fixing rod, both ends of the fixing rod are fixedly mounted on the middle part of the top end of the fixing frame, the upper sliding sleeve of the fixing rod is provided with two symmetrically distributed pull rings, the top of the fixing rod is provided with a plurality of groups of equally spaced card slots, the middle parts of the two pull rings are slidably clamped in the inside of the card slots, the bottom ends of the two pull rings are fixedly mounted with a shell, the upper parts of the two shells are slidably clamped with two symmetrically distributed first limiting rings, the bottom ends of the two first limiting rings are fixedly mounted with two symmetrically distributed positioning blocks, the lower parts of the two shells are fixedly mounted with a second limiting ring, the upper parts of the two second limiting rings are provided with a plurality of positioning holes distributed in a ring array, the four positioning blocks are slidably clamped in the inside of the positioning holes, the middle part of the second limiting ring is slidably clamped with a fixing ring, the middle parts of the bottom ends of the two first limiting rings are fixedly mounted on the middle part of the top end of the fixing ring, and the middle parts of the bottom ends of the two fixing rings are fixedly mounted with handles.

[0008] Preferably, the rehabilitation massage mechanism includes a fixed shell, the fixed shell is provided with two symmetrically distributed, two symmetrically distributed screws are rotatably installed in the middle of the top of the base, the upper parts of the two screws are rotated to penetrate the middle of the fixed frame, the upper parts of one side of the two fixed shells are threadedly installed on the upper part of the screw, two groups of symmetrically distributed limit rods are fixedly installed on the top of the base, the tops of the two groups of limit rods are fixedly installed in the middle of the fixed frame, one side of the two fixed shells is slidably clamped on the outer surface of the limit rod, the opposite sides of the two fixed shells are provided with two diagonally distributed outer frames, one side of the four outer frames is rotatably installed with a plurality of massage rollers distributed at equal intervals, and the lower parts of the two fixed shells are fixedly installed with Motor, one side of the two fixed shells is rotatably installed with a No. 2 gear, the middle part of the No. 2 gear is fixedly installed with a half-face gear, the middle part of the one side of the two fixed shells is rotatably installed with a No. 4 gear, one side of the two No. 4 gears is fixedly installed with a No. 3 gear, the No. 3 gear cooperates with the No. 2 gear and the half-face gear, one side of the two fixed shells is slidably clamped with two diagonally distributed No. 2 tooth plates, and the No. 2 tooth plates are meshed with the No. 3 gear, one side of the two fixed shells is fixedly installed with a connecting block, one side of the four outer frames is fixedly installed on one side of the connecting block, and two symmetrically distributed connecting grooves are provided on the opposite sides of the two fixed shells, and the four connecting blocks are slidably clamped in the middle of the connecting grooves.

[0009] Compared with the prior art, the present invention has the following beneficial effects: 1. The present application can integrate aerobic exercise, anaerobic exercise and rehabilitation massage, using less space, so that fitness users can use fitness equipment flexibly according to their own needs to exercise, meet the needs of fitness users, and through the folding and storage of the treadmill, it is convenient for fitness users to use other facilities. At the same time, the treadmill can be reset under the drive of the electric push rod, so that fitness users can use the treadmill conveniently for aerobic exercise; 2. The present application can adjust the spacing between the pull rings to facilitate anaerobic exercise for fitness people of different body shapes and sizes, and can adjust the angle of the handles to facilitate fitness people to exercise different positions of the back muscles, making the device more practical; 3. The present application can massage the body of the fitness person through the reciprocating movement of the massage roller, thereby facilitating the massage of the body of the fitness person, thereby alleviating the body pain of the fitness person the next day after exercise. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a schematic diagram of the structure of the present invention.

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the base of the present invention.

[0013] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0014] Figure 4 It is a schematic diagram of the connection structure between the sliding frame and the treadmill in the present invention.

[0015] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle.

[0016] Figure 6 It is a schematic diagram of the connection structure of the first folding rod and the second folding rod in the present invention.

[0017] Figure 7 It is a schematic diagram of the cross-sectional structure of the anaerobic exercise mechanism of the present invention.

[0018] Figure 8 It is a schematic diagram of the structure after the first limiting ring and the fixing ring in the present invention are separated.

[0019] Fig. 9 It is a schematic diagram of the structure of the rehabilitation massage mechanism in the present invention.

[0020] Fig.10 It is a schematic diagram of the cross-sectional structure of the rehabilitation massage mechanism in the present invention.

[0021] Fig.11 It is a schematic diagram of the connection structure between the second gear and the half gear in the present invention.

[0022] Fig.12 It is a schematic diagram of the connection structure between the outer frame and the connection block in the present invention.

[0023] In the figure: 1, base; 2, aerobic exercise mechanism; 201, treadmill; 202, first folding rod; 203, slide slot; 204, second folding rod; 205, electric push rod; 206, sliding frame; 207, support rod; 208, No. 1 gear plate; 209, No. 1 gear; 210, rotating shaft; 211, driving block; 212, driving slot; 3, anaerobic exercise mechanism; 301, fixing rod; 302, slot; 303, pull ring; 304, shell; 305, first limit Ring; 306, positioning block; 307, second limiting ring; 308, positioning hole; 309, fixing ring; 310, handle; 4, fixing frame; 5, rehabilitation massage mechanism; 501, fixing shell; 502, screw; 503, limiting rod; 504, outer frame; 505, massage roller; 506, motor; 507, gear No. 2; 508, half-face gear; 509, gear No. 3; 510, gear No. 4; 511, gear plate No. 2; 512, connecting block; 513, connecting groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example: Figure 1-12 As shown, the present invention provides a three-in-one fitness device, including a base 1, an aerobic exercise mechanism 2 for a fitness person to run is provided on the upper part of the base 1, two symmetrically distributed fixing frames 4 are fixedly installed on the top of the base 1, an anaerobic exercise mechanism 3 for a fitness person to do pull-ups is provided on the top of the two fixing frames 4, and a rehabilitation massage mechanism 5 is provided in the middle part of the two fixing frames 4 for relieving the fitness person's body pain.

[0026] The aerobic exercise mechanism 2 includes a treadmill 201, one side of the treadmill 201 is slidably mounted on the upper part of the base 1, a first folding rod 202 is provided in the middle of the treadmill 201, and second folding rods 204 are rotatably mounted on the lower parts of both sides of the first folding rod 202, and the other sides of the two second folding rods 204 are rotatably mounted on the middle parts of both sides of the treadmill 201, a driving assembly is provided in the middle part of one side of the base 1, a sliding frame 206 is slidably mounted on one side of the top of the base 1, and the other side of the treadmill 201 is rotatably mounted in the middle part of the sliding frame 206, wherein one A gear No. 209 is fixedly installed on one side of the second folding rod 204, a gear No. 1 plate 208 is fixedly installed on one side of the upper part of the base 1, and the gear No. 1 plate 208 is meshed with the gear No. 1 209, a rotating shaft 210 is fixedly installed in the middle of the other side of the treadmill 201, the rotating shaft 210 slides through the second folding rod 204 and the sliding frame 206, a driving block 211 is fixedly installed on the other end of the rotating shaft 210, a driving groove 212 is opened in the middle of one side of the base 1, and the lower part of one side of the driving block 211 is slidably clamped in the inside of the driving groove 212.

[0027] By adopting the above technical solution, fitness people can use the treadmill 201 to do aerobic exercise, and at the same time, the treadmill 201 can be folded and stored, so as to maximize the use of space.

[0028] The anaerobic exercise mechanism 3 includes a fixed rod 301, both ends of which are fixedly installed on the middle part of the top end of the fixed frame 4, the upper part of the fixed rod 301 is slidably sleeved with two symmetrically distributed pull rings 303, the bottom ends of the two pull rings 303 are fixedly installed with a shell 304, the upper parts of the two shells 304 are slidably clamped with two symmetrically distributed first limit rings 305, the bottom ends of the two first limit rings 305 are fixedly installed with two symmetrically distributed positioning blocks 306, the lower parts of the two shells 304 are fixedly installed with second limit rings 307, the upper parts of the two second limit rings 307 are provided with a plurality of positioning holes 308 distributed in a circular array, the four positioning blocks 306 are slidably clamped inside the positioning holes 308, the middle part of the second limit ring 307 is slidably clamped with a fixing ring 309, the middle parts of the bottom ends of the two first limit rings 305 are fixedly installed on the middle part of the top end of the fixing ring 309, and the middle parts of the bottom ends of the two fixing rings 309 are fixedly installed with handles 310.

[0029] By adopting the above technical solution, it is convenient for fitness people to exercise different positions of the back muscles through pull-ups.

[0030] The rehabilitation massage mechanism 5 includes a fixed shell 501, which is provided with two symmetrically distributed screw rods 502 rotatably installed in the middle of the top of the base 1, and the upper parts of the two screw rods 502 are rotated to penetrate the middle of the fixed frame 4. The upper parts of one side of the two fixed shells 501 are threadedly installed on the upper parts of the screw rods 502. Two diagonally distributed outer frames 504 are provided on the opposite sides of the two fixed shells 501. One side of the four outer frames 504 is rotatably installed with multiple massage rollers 505 distributed at equal intervals. The lower parts of the two fixed shells 501 are fixedly installed with motors 506, and one side of the two fixed shells 501 is rotatably installed with a second gear. Wheel 507, a half-face gear 508 is fixedly installed in the middle of the No. 2 gear 507, a No. 4 gear 510 is rotatably installed in the middle of one side of the two fixed shells 501, and a No. 3 gear 509 is fixedly installed on one side of the two No. 4 gears 510. The No. 3 gear 509 cooperates with the No. 2 gear 507 and the half-face gear 508. Two diagonally distributed No. 2 tooth plates 511 are slidably clamped on one side of the two fixed shells 501, and the No. 2 tooth plates 511 are meshed with the No. 3 gear 509, a connecting block 512 is fixedly installed on one side of the No. 2 tooth plate 511, and one side of the four outer frames 504 is fixedly installed on one side of the connecting block 512.

[0031] By adopting the above technical solution, a relaxing massage can be performed on the body of a fitness person, thereby alleviating the body pain caused by fitness on the next day.

[0032] The driving assembly includes an electric push rod 205 , which is fixedly mounted at the middle of one side of the base 1 , and a first gear 209 is rotatably mounted at the middle of one side of the driving end of the electric push rod 205 .

[0033] By adopting the above technical solution, the treadmill 201 can be driven to move by the electric push rod 205 .

[0034] Slide grooves 203 are provided on both sides of the treadmill 201 , and lower portions of both sides of the first folding rod 202 are slidably mounted inside the slide grooves 203 .

[0035] By adopting the above technical solution, the lower part of the first folding rod 202 can be limited, so that the first folding rod 202 can be turned over, opened and folded under the drive of the second folding rod 204.

[0036] Two symmetrically distributed support rods 207 are fixedly mounted on the top upper portion of the base 1 , and the lower portions of both sides of the sliding frame 206 are slidably clamped on the outer surfaces of the support rods 207 .

[0037] By adopting the above technical solution, the sliding frame 206 is supported and limited, ensuring that the sliding frame 206 can slide on the upper part of the base 1.

[0038] The top of the fixing rod 301 is provided with a plurality of equally spaced slots 302 , and the middle portions of the two pull rings 303 are slidably engaged in the slots 302 .

[0039] By adopting the above technical solution, the distance between the two pull rings 303 can be adjusted, thereby facilitating use by different fitness enthusiasts.

[0040] Two groups of symmetrically distributed limiting rods 503 are fixedly installed on the top of the base 1 . The tops of the two groups of limiting rods 503 are fixedly installed in the middle of the fixing frame 4 . One side of the two fixing shells 501 is slidably clamped on the outer surface of the limiting rods 503 .

[0041] By adopting the above technical solution, the fixed shell 501 can be limited, so as to ensure that the fixed shell 501 can be driven to adjust its height up and down when the screw rod 502 rotates.

[0042] Two symmetrically distributed connecting grooves 513 are respectively formed on opposite sides of the two fixing shells 501 , and four connecting blocks 512 are slidably mounted in the middle of the connecting grooves 513 .

[0043] By adopting the above technical solution, when the second tooth plate 511 moves up and down reciprocatingly, the outer frame 504 can be driven to move up and down stably reciprocatingly through the connecting block 512 and the connecting groove 513 .

[0044] Working principle: In actual use, fitness people can do aerobic exercise, warm up and lose fat by running on the treadmill 201. When the treadmill 201 is not in use, the electric push rod 205 can be used to drive the first gear 209 and the sliding frame 206 to move forward, so that when the first gear 209 and the first tooth plate 208 are meshed with each other, the second folding rod 204 is driven to rotate, that is, the first folding rod 202 is driven to flip downward under the cooperation with the slide groove 203, so that the first folding rod 202 and the upper part of the treadmill 201 are in contact with each other. At the same time, the electric push rod Under the drive of 205, the sliding frame 206 continues to move forward under the limit of the support rod 207, and at the same time drives the treadmill 201 to move forward, and one side of the driving block 211 is slidably clamped in the driving groove 212, so that under the limit of its driving groove 212, the driving block 211 is driven to rotate, and then under the transmission of its rotating shaft 210, the treadmill 201 is driven to rotate 90 degrees, so that it keeps a vertical state with the base 1. At this time, the treadmill 201 is located on one side of the base 1, and the treadmill 201 can be reset for use by the reverse drive of the electric push rod 205; The fitness person can do pull-ups for anaerobic training by pulling the handle 310, and can adjust the distance between the two pull rings 303 by inserting the upper part of the pull ring 303 into different slots 302, so as to adapt to different users, and can push the handle 310 upward to drive the fixing ring 309 and the first limiting ring 305 to move upward, so that the positioning block 306 is away from the inside of the positioning hole 308, so that the angle of the handle 310 can be adjusted by rotating the handle 310, and when the required angle is reached, the positioning block 306 can be inserted into the inside of the positioning hole 308 to complete the angle adjustment of the handle 310, so that the fitness person can adjust the angle of the handle 310 according to his own needs, so as to exercise different positions of the back; After the fitness user has finished exercising, in order to avoid muscle pain the next day caused by lactic acid accumulation, the fixed shell 501 can be adjusted to the height required by the fitness user by rotating the screw rod 502, so that the part to be massaged is close to the massage roller 505, and the motor 506 drives the second gear 507 to rotate, that is, drives the half-face gear 508 to rotate. Under the mutual cooperation of the second gear 507 and the half-face gear 508, the third gear 509 can be rotated forward and reverse, and then the fourth gear 510 can be driven to rotate forward and reverse, that is, the second tooth plate 511 meshed with it can be reciprocated, so that the outer frame 504 can be reciprocated under the connection of the connecting block 512, that is, the massage roller 505 can be driven to reciprocate, so that the fitness user's body is massaged by the reciprocating movement of the massage roller 505, thereby alleviating pain.

[0045] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A three-in-one fitness device, comprising a base (1), characterized in that: An aerobic exercise mechanism (2) for a fitness person to run is provided on the upper part of the base (1); two symmetrically distributed fixing frames (4) are fixedly mounted on the top of the base (1); anaerobic exercise mechanisms (3) for a fitness person to do pull-ups are provided on the tops of the two fixing frames (4); and rehabilitation massage mechanisms (5) for relieving body pain of the fitness person are provided in the middle of the two fixing frames (4).

2. A three-in-one fitness device as claimed in claim 1, characterized in that: The aerobic exercise mechanism (2) comprises a treadmill (201), one side of the treadmill (201) is slidably mounted on the upper part of the base (1), a first folding rod (202) is provided in the middle of the treadmill (201), second folding rods (204) are rotatably mounted on the lower parts of both sides of the first folding rod (202), the other sides of the two second folding rods (204) are rotatably mounted on the middle parts of both sides of the treadmill (201), a driving assembly is provided in the middle part of one side of the base (1), a sliding frame (206) is slidably mounted on one side of the top end of the base (1), the other side of the treadmill (201) is rotatably mounted on the middle part of the sliding frame (206), one A first gear (209) is fixedly mounted on one side of the second folding rod (204), a first tooth plate (208) is fixedly mounted on one side of the upper portion of the base (1), and the first tooth plate (208) is meshed with the first gear (209), a rotating shaft (210) is fixedly mounted on the middle portion of the other side of the treadmill (201), the rotating shaft (210) slides through the second folding rod (204) and the sliding frame (206), a driving block (211) is fixedly mounted on the other end of the rotating shaft (210), a driving groove (212) is opened in the middle portion of one side of the base (1), and a lower portion of one side of the driving block (211) is slidably clamped inside the driving groove (212).

3. A three-in-one fitness device as claimed in claim 1, characterized in that: The anaerobic exercise mechanism (3) comprises a fixed rod (301), both ends of which are fixedly mounted on the middle part of the top end of the fixed frame (4), the upper sliding sleeve of the fixed rod (301) is provided with two symmetrically distributed pull rings (303), the bottom ends of the two pull rings (303) are fixedly mounted with a shell (304), the upper parts of the two shells (304) are slidably clamped with two symmetrically distributed first limiting rings (305), the bottom ends of the two first limiting rings (305) are fixedly mounted with two symmetrically distributed positioning blocks (306), and the two A second limiting ring (307) is fixedly installed at the lower part of the shell (304), and a plurality of positioning holes (308) distributed in a circular array are opened on the upper parts of the two second limiting rings (307). The four positioning blocks (306) are slidably clamped inside the positioning holes (308), and a fixing ring (309) is slidably clamped in the middle part of the second limiting ring (307). The middle parts of the bottom ends of the two first limiting rings (305) are fixedly installed in the middle parts of the top ends of the fixing ring (309), and handles (310) are fixedly installed in the middle parts of the bottom ends of the two fixing rings (309).

4. A three-in-one fitness device as claimed in claim 1, characterized in that: The rehabilitation massage mechanism (5) comprises a fixed shell (501), wherein the fixed shell (501) is provided with two symmetrically distributed screw rods (502) rotatably mounted at the middle of the top of the base (1), the upper parts of the two screw rods (502) are both rotatably mounted to penetrate the middle of the fixed frame (4), the upper parts of one side of the two fixed shells (501) are both threadedly mounted on the upper parts of the screw rods (502), the opposite sides of the two fixed shells (501) are provided with two diagonally distributed outer frames (504), one side of the four outer frames (504) is rotatably mounted with a plurality of massage rollers (505) distributed at equal intervals, the lower parts of the two fixed shells (501) are both fixedly mounted with motors (506), and one side of the two fixed shells (501) is both rotatably mounted with a second gear. A wheel (507) is provided, a half-face gear (508) is fixedly installed in the middle of the No. 2 gear (507), a No. 4 gear (510) is rotatably installed in the middle of one side of the two fixed shells (501), a No. 3 gear (509) is fixedly installed on one side of the two No. 4 gears (510), the No. 3 gear (509) cooperates with the No. 2 gear (507) and the half-face gear (508) for use, two No. 2 tooth plates (511) distributed diagonally are slidably clamped on one side of the two fixed shells (501), and the No. 2 tooth plates (511) are meshed with the No. 3 gear (509), a connecting block (512) is fixedly installed on one side of the No. 2 tooth plates (511), and one side of the four outer frames (504) is fixedly installed on one side of the connecting block (512).

5. A three-in-one fitness device as claimed in claim 2, characterized in that: The driving assembly comprises an electric push rod (205), wherein the electric push rod (205) is fixedly mounted on the middle part of one side of the base (1), and the middle part of one side of the first gear (209) is rotatably mounted on the driving end side of the electric push rod (205).

6. A three-in-one fitness device as claimed in claim 2, characterized in that: Slide grooves (203) are provided on both sides of the treadmill (201), and lower portions on both sides of the first folding rod (202) are slidably clamped inside the slide grooves (203).

7. A three-in-one fitness device as claimed in claim 2, characterized in that: Two symmetrically distributed support rods (207) are fixedly mounted on the top upper portion of the base (1), and lower portions on both sides of the sliding frame (206) are slidably clamped on the outer surfaces of the support rods (207).

8. The three-in-one fitness device according to claim 3, characterized in that: The top end of the fixing rod (301) is provided with a plurality of equally spaced slots (302), and the middle portions of the two pull rings (303) are slidably mounted inside the slots (302).

9. A three-in-one fitness device as claimed in claim 4, characterized in that: Two groups of symmetrically distributed limiting rods (503) are fixedly mounted on the top of the base (1); the tops of the two groups of limiting rods (503) are fixedly mounted on the middle of the fixing frame (4); and one side of the two fixing shells (501) is slidably clamped on the outer surface of the limiting rods (503).

10. The three-in-one fitness device according to claim 4, characterized in that: Two symmetrically distributed connection grooves (513) are provided on opposite sides of the two fixed shells (501), and the four connection blocks (512) are slidably clamped in the middle of the connection grooves (513).

Images