An exercise machine

Abstract

The application belongs to the technical field of exercise equipment, and particularly relates to a device for assisting postoperative or post-injury rehabilitation of patients and body building of healthy people, which comprises a base, a mounting table fixedly connected to the top of the base, a mounting plate horizontally arranged on the top of the mounting table, a plurality of limiting rods vertically and slidingly inserted into the mounting plate, and the bottom end of each limiting rod being fixedly connected to the top of the mounting table. During the whole training process, the patient's arms and legs drive the paddles in the two water tanks to stir the water, so that the resistance generated by the water on the paddles is used to train the strength of the patient's arms or legs. In addition, the patient can cooperate the arms and legs to complete the coordination and cooperation training of the injured arms or legs and the body, so as to reduce the strength of the single arm or leg training in the whole training process, and thus improve the training effect while avoiding secondary injury of the injured arms or legs.

Description

Technical Field

[0001] This invention belongs to the technical field of postoperative exercise equipment, and particularly relates to a fitness device. Background Technology

[0002] Rehabilitation training equipment is a type of fitness equipment that uses mechanical transmission to exercise reciprocating movements in specific parts of the body, thereby strengthening bones and muscles and accelerating the recovery process. For example, some patients who have undergone leg or arm surgery may use leg or arm training equipment after a period of recovery to improve the flexibility and strength of their arms or legs, thus accelerating their recovery.

[0003] However, since patients' legs or arms have not fully recovered after surgery, training that focuses solely on the patient's postoperative arms or legs may sometimes lead to excessive training intensity and cause secondary injury due to insufficient strength in the patient's arms or legs after surgery, thus failing to achieve the desired rehabilitation effect.

[0004] Therefore, it is necessary to invent a fitness device to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a fitness device to solve the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fitness equipment, including a base, a mounting platform fixedly connected to the top of the base, a mounting plate horizontally arranged on the top of the mounting platform, a plurality of limiting rods vertically slidingly inserted into the mounting plate, the bottom ends of the limiting rods being vertically fixedly connected to the top of the mounting platform, a jack connecting the bottom of the mounting plate and the top of the mounting platform, cylindrical water tanks being provided on the top of the mounting plate and the bottom of the mounting platform, and water injection pipes being provided on the top of the water tanks, mounting frames being fixedly connected to the bottom of the water tanks, and the mounting frames at the bottom of the two water tanks being fixedly connected to the mounting plate and the top of the base, respectively, a rotating shaft being vertically rotatably inserted between the centers of the front and rear sides of the water tanks, a water-pushing component being installed on the portion of the rotating shaft located inside the water tank, and a first drive component and a second drive component being respectively provided near the front end of the upper and lower rotating shafts.

[0007] Furthermore, the paddling assembly includes two fixed rings, which are sleeved around the outer periphery of the rotating shaft. The two fixed rings are respectively close to the front and rear inner walls of the water tank. Multiple connecting rods are fixedly connected to the inner side of the fixed rings. The ends of the multiple connecting rods near the rotating shaft are fixedly connected to the same connecting ring. The connecting ring is fixedly sleeved on the rotating shaft. Multiple paddling plates are fixedly connected between the two fixed rings. The multiple paddling plates are evenly distributed in a ring between the two fixed rings. The multiple paddling plates are all located on the diameter extension line of the fixed rings and are located on the outer periphery of the connecting rings.

[0008] Furthermore, the first drive assembly includes a first transmission gear, which is fixedly sleeved on the rotating shaft near the front end. The first transmission gear has two symmetrically arranged first missing teeth, both of which mesh with the first transmission gear. A handrail is horizontally fixed between the front sides of the two first missing teeth, and the middle part of the handrail is rotatably sleeved on the front end of the rotating shaft.

[0009] Furthermore, the second drive assembly includes a second transmission gear, which is fixedly sleeved on the rotating shaft near the front end. Symmetrically arranged on both sides of the second transmission gear are second missing gears, both of which mesh with the second transmission gear. A foot pedal is horizontally fixed between the front sides of the two second missing gears, with both ends of the foot pedal forming a zigzag shape and featuring protective protrusions. A strip-shaped through hole is perforated at the top of each end of the foot pedal, and a movable block is vertically inserted into the through hole. A foot pedal is horizontally fixed to the top of the movable block. A positioning rod is perforated between the front and rear sides of the movable block. Strip-shaped positioning holes are horizontally perforated on the inner walls of the front and rear sides of the through hole, opposite to the positioning rod. Both ends of the positioning rod are slidably installed in the two positioning holes. A telescopic rod is fixedly connected to the bottom of the movable block, and the bottom of the telescopic rod is vertically fixedly connected to the top of the base. A support spring is sleeved on the telescopic rod, and both ends of the support spring are fixedly connected to the surface of the telescopic rod near the top and the top of the base, respectively.

[0010] Furthermore, the diameter of the rotating shaft inside the water tank is larger than the diameters at both ends, and the portion of the rotating shaft inside the water tank has a cylindrical cavity. An adjusting rod is rotatably inserted through the rear end of the rotating shaft, and the front end of the adjusting rod is rotatably connected to the front inner wall of the cavity. A bushing is threaded onto the portion of the adjusting rod inside the cavity, and multiple levers are vertically fixedly connected to the surface of the bushing. Slot-shaped limiting holes are drilled through the inner wall of the cavity at positions opposite to the multiple levers, and the multiple levers are inserted one-to-one into multiple... In each limiting hole, multiple levers are aligned with multiple padding boards. A baffle is slidably inserted into the side of the padding board near the rotating shaft. A slot is opened on the side of the baffle near the rotating shaft, and multiple levers are inserted into the slots of the baffles one by one. A limiting block is inserted through the end of the lever away from the bushing along its two sides. Limiting grooves are opened on both sides of the slot opposite to the limiting block. The two ends of the limiting block are slidably installed in the two limiting grooves respectively, and the front end of the limiting groove is inclined towards the rotating shaft.

[0011] Furthermore, support blocks are provided on both the front and rear sides of the movable block, and the top and bottom of the support blocks are fixedly connected to the bottom of the foot pedal and the top of the telescopic rod, respectively.

[0012] Furthermore, a first protective cover and a second protective cover are respectively installed on the handrail and the foot pedal. The first transmission gear and the first missing gear are both located inside the first protective cover, and the second transmission gear and the second missing gear are both located inside the second protective cover. A timer is installed on the front side of the first protective cover.

[0013] Furthermore, the handrail is positioned further back than the foot pedal, and both ends of the handrail are fitted with handle sleeves.

[0014] Furthermore, the side of the paddling board away from the pivot is close to the inner wall of the water tank, and the sum of the widths of the paddling board and the baffle is greater than the distance between the pivot surface and the inner wall of the water tank.

[0015] The technical effects and advantages of this invention are as follows:

[0016] 1. Throughout the training process, the patient's arms and legs move the paddling boards in the two tanks to propel the water. The resistance generated by the water against the paddling boards trains the strength of the patient's arms or legs. In addition, the patient can complete the coordination training of the injured arm or leg with the body through the coordination of the arms and legs. This reduces the intensity of training a single arm or leg during the entire training process, thereby avoiding secondary injury to the patient's injured arm or leg while improving the training effect.

[0017] 2. By incorporating a baffle, this invention allows for adjustment of the resistance encountered by the paddling board by varying the extension of the baffle to accommodate different patients or strength training requirements. This better meets the training needs of patients with varying strength requirements, enhances training effectiveness, and also prevents secondary injuries to patients caused by excessive strength training load. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the second overall structure of the present invention;

[0020] Figure 3 This is a three-dimensional schematic diagram of all structures in this invention except for the first protective cover, the second protective cover, and the timer;

[0021] Figure 4 This is a three-dimensional schematic diagram of a portion of the second driving components in this invention;

[0022] Figure 5 This is a three-dimensional schematic diagram of the foot pedal in this invention;

[0023] Figure 6 This is a three-dimensional schematic diagram of the structure of the water-pushing component, baffle, rotating shaft, second transmission gear, and adjusting rod in this invention;

[0024] Figure 7 This is a three-dimensional schematic diagram of the water-pushing component and the rotating shaft in this invention;

[0025] Figure 8 This is a three-dimensional schematic diagram of the adjusting rod, bushing, lever, and baffle in this invention;

[0026] Figure 9 This is a three-dimensional schematic diagram of the lever, bushing, and limiting block in this invention;

[0027] Figure 10 This is a three-dimensional sectional view of the baffle in this invention.

[0028] In the diagram: 1. Base; 2. Mounting platform; 3. Mounting plate; 4. Limiting rod; 5. Jack; 6. Water tank; 7. Water inlet pipe; 8. Mounting bracket; 9. Shaft; 10. Paddle assembly; 101. Fixing ring; 102. Connecting rod; 103. Connecting ring; 104. Paddle blade; 11. First drive assembly; 111. First transmission gear; 112. First missing gear; 113. Handrail; 12. Second drive assembly; 120. Second transmission gear ; 121. Second missing gear; 122. Foot pedal; 123. Through hole; 124. Movable block; 125. Foot pedal; 126. Positioning rod; 127. Positioning hole; 128. Telescopic rod; 129. Support spring; 13. Adjusting rod; 14. Bushing; 15. Lever; 16. Baffle; 17. Limiting block; 18. Limiting groove; 19. Support block; 20. First protective cover; 21. Second protective cover; 22. Timer; 23. Handle cover. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0030] This invention provides, for example Figures 1 to 10 The fitness equipment shown includes a base 1, a mounting platform 2 fixedly connected to the top of the base 1, a mounting plate 3 horizontally mounted on the top of the mounting platform 2, a plurality of limiting rods 4 vertically slidingly inserted on the mounting plate 3, the bottom ends of the limiting rods 4 being vertically fixedly connected to the top of the mounting platform 2, a jack 5 connecting the bottom of the mounting plate 3 and the top of the mounting platform 2, cylindrical water tanks 6 being provided on the top of the mounting plate 3 and the bottom of the mounting platform 2, and a water injection pipe 7 being provided on the top of the water tank 6, mounting brackets 8 being fixedly connected to the bottom of the water tank 6, and the mounting brackets 8 at the bottom of the two water tanks 6 being fixedly connected to the mounting plate 3 and the top of the base 1 respectively, a rotating shaft 9 being vertically rotatably inserted between the centers of the front and rear sides of the water tank 6, a water-pushing component 10 being installed on the part of the rotating shaft 9 located inside the water tank 6, and a first drive component 11 and a second drive component 12 being provided near the front ends of the upper and lower rotating shafts 9 respectively.

[0031] Before training, the distance between the upper and lower water tanks 6 can be adjusted by jack 5 to meet the training needs of patients of different heights. Then, water is injected into the water tank 6 through water injection pipe 7 to increase the resistance encountered by the paddling component 10 during the movement.

[0032] During training, the patient can stand on the second drive component 12 with both feet, while holding the first drive component 11 with both hands. During training, the patient can adjust their center of gravity by tilting their body. As the patient's center of gravity is adjusted, the second drive component 12 can deflect back and forth around the pivot 9 under the pressure of the patient. As the second drive component 12 deflects back and forth, the paddling component 10 connected to the second drive component 12 can continuously move the water in the water tank 6, thereby achieving the training requirements for the patient's leg strength through the resistance generated by the water on the paddling component 10.

[0033] The patient's two hands can independently drive the first drive component 11 to deflect around the pivot 9. As the first drive component 11 deflects, the paddling component 10 connected to the first drive component 11 can continuously move the water in the water tank 6, thereby achieving the training requirements for the patient's arm strength through the resistance generated by the water on the paddling component 10.

[0034] like Figure 6 and Figure 7 As shown, the paddling assembly 10 includes two fixing rings 101, which are sleeved around the rotating shaft 9. The two fixing rings 101 are close to the front and rear inner walls of the water tank 6, respectively. Multiple connecting rods 102 are fixedly connected to the inner side of the fixing rings 101. The ends of the multiple connecting rods 102 near the rotating shaft 9 are fixedly connected to the same connecting ring 103. The connecting ring 103 is fixedly sleeved on the rotating shaft 9. Multiple paddling plates 104 are fixedly connected between the two fixing rings 101. The multiple paddling plates 104 are evenly distributed in a ring between the two fixing rings 101. The multiple paddling plates 104 are all located on the diameter extension line of the fixing rings 101, and the paddling plates 104 are located around the connecting ring 103.

[0035] The first drive assembly 11 includes a first transmission gear 111, which is fixedly sleeved on the rotating shaft 9 near the front end. The first transmission gear 111 has two symmetrically arranged first missing gears 112 on both sides, and both first missing gears mesh with the first transmission gear 111. A handrail 113 is horizontally fixedly installed between the front sides of the two first missing gears 112, and the middle part of the handrail 113 is rotatably sleeved on the front end of the rotating shaft 9.

[0036] The second drive assembly 12 includes a second transmission gear 120, which is fixedly sleeved on the rotating shaft 9 near the front end. Two second missing gears 121 are symmetrically arranged on both sides of the second transmission gear 120, and both second missing gears 121 mesh with the second transmission gear 120. A foot pedal 122 is horizontally fixedly installed between the front sides of the two second missing gears 121, and both ends of the foot pedal 122 are zigzag-shaped with protective protrusions. A strip-shaped through hole 123 is opened through the top of both ends of the foot pedal 122, and a movable block 124 is vertically inserted into the through hole 123. A foot pedal 125 is horizontally fixedly connected to the top of the movable block 124. A positioning rod 126 is inserted through the front and rear sides of the movable block 124. A strip-shaped positioning hole 127 is horizontally opened through the inner wall of the through hole 123 at the position opposite to the positioning rod 126. The two ends of the positioning rod 126 are slidably installed in the two positioning holes 127 respectively. A telescopic rod 128 is fixedly connected to the bottom of the movable block 124. The bottom end of the telescopic rod 128 is vertically fixedly connected to the top of the base 1. A support spring 129 is sleeved on the telescopic rod 128. The two ends of the support spring 129 are fixedly connected to the surface of the telescopic rod 128 near the top and the top of the base 1 respectively.

[0037] During training, the patient can stand on two foot pedals 125 with each foot, while holding the ends of the handrails 113 with both hands. When the patient's feet are on the two foot pedals 125, their center of gravity shifts as they lean forward. When the center of gravity shifts to one foot, the foot pedal 125 under that foot moves downward, compressing the corresponding telescopic rod 128 and support spring 129. During this process, as the foot pedal 125 moves downward, the movable block 124, driven by the foot pedal 125, moves the positioning rod 126 along the positioning hole 127. Furthermore, the pressure of the positioning rod 126 on the foot pedal 122 drives the foot pedal 126... The other end of the foot pedal 122 gradually deflects upward around the pivot 9. As the other end of the foot pedal 122 deflects upward, the corresponding telescopic rod 128 and support spring 129 are gradually stretched. The other positioning rod 126 can move adaptively along the corresponding positioning hole 127 to meet the deflection requirements of the foot pedal 122. As the foot pedal 122 deflects, the two second gears 121 can drive the pivot 9 and multiple paddling boards 104 to rotate together through the second transmission gear 120. As the paddling boards 104 rotate, they can continuously move the water in the water tank 6, thereby achieving the training effect of leg strength training for the patient through the resistance generated by the water on the paddling boards 104.

[0038] Similarly, the patient's two hands can independently drive the handrail 113 to deflect around the pivot 9. As the handrail 113 rotates, the two first gears 112 can drive the pivot 9 and multiple paddling boards 104 to rotate together through the first transmission gear 111. As the paddling boards 104 rotate, they can continuously move the water in the water tank 6, thereby achieving the training effect of arm strength training through the resistance generated by the water on the paddling boards 104.

[0039] Furthermore, throughout the training process, patients can coordinate their arms and legs to train the injured arm or leg in coordination with the body, reducing the intensity of training a single arm or leg during the training process. This helps to avoid secondary injury to the injured arm or leg while improving the training effect.

[0040] In addition, throughout the training process, the patient's body is more relaxed, and as the patient's body tilts back and forth, the patient's lower back is also well exercised, improving the patient's overall body coordination.

[0041] like Figures 6 to 10 As shown, the diameter of the rotating shaft 9 inside the water tank 6 is larger than the diameters at both ends, and the portion of the rotating shaft 9 inside the water tank 6 has a cylindrical cavity. An adjusting rod 13 is rotatably inserted through the rear end of the rotating shaft 9. The front end of the adjusting rod 13 is rotatably connected to the front inner wall of the cavity. A bushing 14 is threaded onto the portion of the adjusting rod 13 inside the cavity. Multiple levers 15 are vertically fixedly connected to the surface of the bushing 14. Strip-shaped limiting holes are provided through the inner wall of the cavity at positions opposite to the levers 15. The levers 15 are inserted one-to-one into the limiting holes, and each lever 15 corresponds to one of the padding plates 104. The padding plates 104 are close to the rotating shaft. A baffle 16 is slidably inserted into one side of the shaft 9. A slot is provided on the side of the baffle 16 near the shaft 9, and multiple levers 15 are inserted into the slots of the baffle 16 one by one. A limit block 17 is inserted through the end of the lever 15 away from the bushing 14 along its two sides. Limit grooves 18 are provided on both sides of the slot opposite to the limit block 17. The two ends of the limit block 17 are slidably installed in the two limit grooves 18 respectively, and the front end of the limit groove 18 is inclined towards the shaft 9. The side of the water-spreading plate 104 away from the shaft 9 is close to the inner wall of the water tank 6, and the sum of the widths of the water-spreading plate 104 and the baffle 16 is greater than the distance between the surface of the shaft 9 and the inner wall of the water tank 6.

[0042] With the baffle 16 installed, the adjusting rod 13 can be rotated before exercise. As the adjusting rod 13 rotates, it drives the bushing 14 and multiple levers 15 to move along the length of the rotating shaft 9. As the levers 15 move, the limiting block 17 on the lever 15 can move along the limiting groove 18. With the movement of the limiting block 17, it can cooperate with the limiting groove 18 to drive the baffle 16 to gradually move out of or gradually retract into the paddling board 104. As the baffle 16 gradually moves out of the paddling board 104, the baffle 16 increases the contact area between the paddling board 104 and the water, thereby increasing the resistance during the movement of the paddling board 104. Therefore, when targeting different patients or different strength training requirements, the resistance of the paddling board 104 can be adjusted by adjusting the extension of the baffle 16, thereby better meeting the training needs of patients for different strengths, improving the training effect, and at the same time avoiding secondary injuries to patients caused by excessive strength training load.

[0043] In addition, since the paddling boards 104 in both the upper and lower water tanks 6 can be individually adjusted to connect the baffles 16, they can also be individually adjusted according to the differences in the strength of the patient's legs and arms, thereby better meeting the strength training needs of the patient's legs and arms and improving the training effect.

[0044] like Figure 4 As shown, support blocks 19 are provided on both the front and rear sides of the movable block 124. The top and bottom of the support blocks 19 are fixedly connected to the bottom of the foot pedal 125 and the top of the telescopic rod 128, respectively.

[0045] By adding a support block 19 between the foot pedal 125 and the telescopic rod 128, the connection strength between the foot pedal 125 and the telescopic rod 128 can be increased.

[0046] like Figure 1 and Figure 2 As shown, a first protective cover 20 and a second protective cover 21 are respectively installed on the handrail 113 and the foot pedal 122. The first transmission gear 111 and the first missing gear 112 are both located inside the first protective cover 20, and the second transmission gear 120 and the second missing gear 121 are both located inside the second protective cover 21. A timer 22 is installed on the front side of the first protective cover 20. The handrail 113 is further back than the foot pedal 122, and both ends of the handrail 113 are fitted with handle sleeves 23.

[0047] By providing a first protective cover 20 and a second protective cover 21, during the patient's exercise, the first protective cover 20 and the second protective cover 21 can shield the first transmission gear 111, the first missing gear 112, the second transmission gear 120 and the second missing gear 121, thereby preventing the patient's clothes from getting caught in the first transmission gear 111, the first missing gear 112, the second transmission gear 120 and the second missing gear 121;

[0048] In addition, when the patient stands on the two foot pedals 125 and holds the handles 23 at both ends of the handrail 113, the patient's upper body center of gravity can tilt backward because the handrail 113 is further back than the foot pedal 122. This allows the patient to lean part of their body against the first protective cover 20 and the second protective cover 21, thereby increasing the stability of the patient standing on the foot pedals 125 and preventing the patient from falling off the foot pedals 125 during exercise.

[0049] The timer 22 on the first protective shield 20 can time the patient's exercise time, thereby preventing the patient from suffering secondary injury due to over-exercising.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A fitness equipment, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to the mounting platform (2). The top of the mounting platform (2) is horizontally provided with a mounting plate (3). Multiple limiting rods (4) are vertically slidably inserted into the mounting plate (3). The bottom end of the limiting rods (4) is vertically fixedly connected to the top of the mounting platform (2). A jack (5) is connected between the bottom of the mounting plate (3) and the top of the mounting platform (2). A cylindrical water tank (6) is provided on the top of the mounting plate (3) and the bottom of the mounting platform (2). The top of the water tank (6) is... A water inlet pipe (7) is provided. A mounting bracket (8) is fixedly connected to the bottom of the water tank (6). The mounting brackets (8) at the bottom of the two water tanks (6) are fixedly connected to the mounting plate (3) and the top of the base (1) respectively. A rotating shaft (9) is vertically inserted between the front and rear center of the water tank (6). A water-pushing component (10) is installed on the part of the rotating shaft (9) located inside the water tank (6). A first drive component (11) and a second drive component (12) are respectively provided near the front end of the two rotating shafts (9).

2. The fitness equipment according to claim 1, characterized in that: The paddling assembly (10) includes two fixing rings (101), which are sleeved around the rotating shaft (9) and are close to the front and rear inner walls of the water tank (6). Multiple connecting rods (102) are fixedly connected to the inner side of the fixing rings (101), and the same connecting ring (103) is fixedly connected to one end of the multiple connecting rods (102) near the rotating shaft (9). The connecting ring (103) is fixedly sleeved on the rotating shaft (9). Multiple paddling plates (104) are fixedly connected between the two fixing rings (101), and the multiple paddling plates (104) are evenly distributed in a ring between the two fixing rings (101). The multiple paddling plates (104) are all located on the diameter extension line of the fixing rings (101), and the paddling plates (104) are located around the connecting ring (103).

3. The fitness equipment according to claim 2, characterized in that: The first drive assembly (11) includes a first transmission gear (111), which is fixedly sleeved on the rotating shaft (9) near the front end. The first transmission gear (111) has first missing gears (112) symmetrically arranged on both sides. Both first missing gears mesh with the first transmission gear (111), and a handrail (113) is horizontally fixed between the front sides of the two first missing gears (112). The middle part of the handrail (113) is rotatably sleeved on the front end of the rotating shaft (9).

4. The fitness equipment according to claim 3, characterized in that: The second drive assembly (12) includes a second transmission gear (120), which is fixedly sleeved on the rotating shaft (9) near the front end. Two second missing gears (121) are symmetrically arranged on both sides of the second transmission gear (120). Both second missing gears (121) mesh with the second transmission gear (120). A foot pedal (122) is horizontally fixed between the front sides of the two second missing gears (121). The two ends of the foot pedal (122) are zigzag-shaped, and both ends of the foot pedal (122) are provided with protective protrusions. A strip-shaped through hole (123) is opened through the top of both ends of the foot pedal (122). A movable block (124) is vertically inserted into the through hole (123). A foot pedal (125) is horizontally fixedly connected to the top of the movable block (124). A positioning rod (126) is inserted through the front and rear sides of the movable block (124). A strip-shaped positioning hole (127) is horizontally opened through the inner wall of the front and rear sides of the through hole (123) opposite to the positioning rod (126). The two ends of the positioning rod (126) are slidably installed in the two positioning holes (127). A telescopic rod (128) is fixedly connected to the bottom of the movable block (124). The bottom end of the telescopic rod (128) is vertically fixedly connected to the top of the base (1). A support spring (129) is sleeved on the telescopic rod (128). The two ends of the support spring (129) are fixedly connected to the surface of the telescopic rod (128) near the top and the top of the base (1), respectively.

5. The fitness equipment according to claim 4, characterized in that: The diameter of the rotating shaft (9) inside the water tank (6) is larger than the diameters at both ends, and the portion of the rotating shaft (9) inside the water tank (6) has a cylindrical cavity. An adjusting rod (13) is rotatably inserted through the rear end of the rotating shaft (9). The front end of the adjusting rod (13) is rotatably connected to the inner wall of the front side of the cavity. A bushing (14) is threaded onto the portion of the adjusting rod (13) inside the cavity. Multiple levers (15) are vertically fixedly connected to the surface of the bushing (14). Strip-shaped limiting holes are drilled through the inner wall of the cavity at positions opposite to the multiple levers (15). The multiple levers (15) are inserted one-to-one into the multiple limiting holes. The 104 has multiple paddling boards (104) facing each other. A baffle (16) is slidably inserted into the side of the paddling board (104) near the rotating shaft (9). A slot is opened on the side of the baffle (16) near the rotating shaft (9). Multiple levers (15) are inserted into the slots of the multiple baffles (16) one by one. A limit block (17) is inserted through the end of the lever (15) away from the bushing (14) along its two sides. Limit grooves (18) are opened on both sides of the slot opposite to the limit block (17). The two ends of the limit block (17) are slidably installed in the two limit grooves (18) respectively, and the front end of the limit groove (18) is inclined towards the rotating shaft (9).

6. The fitness equipment according to claim 4, characterized in that: The movable block (124) is provided with support blocks (19) on both the front and rear sides. The top and bottom of the support blocks (19) are fixedly connected to the bottom of the foot pedal (125) and the top of the telescopic rod (128), respectively.

7. The fitness equipment according to claim 4, characterized in that: The handrail (113) and foot pedal (122) are respectively equipped with a first protective cover (20) and a second protective cover (21). The first transmission gear (111) and the first missing gear (112) are both located inside the first protective cover (20), and the second transmission gear (120) and the second missing gear (121) are both located inside the second protective cover (21). A timer (22) is installed on the front side of the first protective cover (20).

8. The fitness equipment according to claim 7, characterized in that: The handrail (113) is positioned further back than the foot pedal (122), and both ends of the handrail (113) are fitted with handle sleeves (23).

9. A fitness equipment according to claim 2, characterized in that: The side of the paddling board (104) away from the pivot (9) is close to the inner wall of the water tank (6), and the sum of the widths of the paddling board (104) and the baffle (16) is greater than the distance between the surface of the pivot (9) and the inner wall of the water tank (6).

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