Water resistance rowing machine

Abstract

The utility model belongs to the field of body builder design, and discloses a water resistance rowing machine which comprises a long-strip-shaped supporting frame body provided with a sliding way. The seat is used for a sporter to sit down and move, and the seat is slidably connected to the slide way; the pedal parts are fixedly connected to the supporting frame body, located on the left side and the right side of the supporting frame body and used for a sporter to tread by two feet during sports; the water resistance box is fixedly connected to the supporting frame body through a water resistance box support; an adjustable paddle structure is arranged in the water resistance box; the transmission part is fixedly connected to the supporting frame body; the springback handheld structure comprises a hollow pipe body and a handheld part arranged on the outer side of the hollow pipe body, an elastic belt is arranged in the hollow pipe body, one end of the elastic belt is fixedly connected with the handheld part, and the other end of the elastic belt is fixedly connected with the output end of the transmission part. The adjustable paddle structure is used for adjusting the load, the load is changed when the elastic belt is pulled, and a sporter can adjust the rotation angle of the paddle according to the training intensity of the sporter.

Description

Technical Field

[0001] This utility model belongs to the field of fitness equipment design and is a water resistance rowing machine. Background Technology

[0002] Water resistance rowing machines, also known as water-resistance rowing machines, are a type of rowing machine that has a water tank. When exercised, it can simulate the real rowing motion, allowing the exerciser to truly feel the action of paddling in water. It has a significant effect on strengthening the muscles of the legs, waist, upper limbs, chest, and back.

[0003] The water tank contains paddles. Existing water resistance rowing machines can change their maximum resistance by adding or removing paddles, and the volume of the water tank will also change accordingly. Utility Model Content

[0004] The purpose of this invention is to provide a water resistance rowing machine with an adjustable fixed blade structure, which allows for load adjustment according to the user's needs, thereby improving the applicability of the rowing machine.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A water resistance rowing device, comprising:

[0006] The support frame is long and narrow, and has sliding tracks on it;

[0007] The seat is for exercisers to sit down and move around; the seat is slidably connected to the track.

[0008] The foot pedals are fixedly connected to the support frame and are located on the left and right sides of the support frame. They are used by the athlete to step on them with both feet during exercise.

[0009] The water resistance box is fixedly connected to the support frame via a water resistance box bracket; the water resistance box is equipped with an adjustable blade structure.

[0010] The transmission unit is fixedly connected to the support frame; the transmission unit includes,

[0011] A wheel with a connecting shaft at its center, one end of which is coaxially connected to the adjustable blade structure inside the water resistance box.

[0012] A belt is wound around the outer circumference of the wheel. The belt is a multi-wedge belt. Correspondingly, an annular groove is formed on the outer circumference of the wheel to cooperate and connect with the multi-wedge belt.

[0013] The resilient handheld structure includes a hollow tube and a handheld part disposed on the outside of the hollow tube. An elastic band is disposed inside the hollow tube, with one end of the elastic band fixedly connected to the handheld part and the other end fixedly connected to one end of the belt.

[0014] The adjustable blade structure is used to adjust the load. The load changes when the elastic band is pulled, and the athlete can adjust the blade rotation angle according to their training intensity.

[0015] According to this utility model, the bottom of the support bracket is provided with a support, and a friction pad is provided at the bottom of the support. This avoids friction with the placement surface and reduces the chance of damage to the placement surface.

[0016] According to this invention, a pulley is further provided on the top surface of the support. This facilitates the movement of the rowing device and reduces the difficulty of handling it.

[0017] According to this utility model, the adjustable blade structure further includes a rotating shaft with one end connected to the rear cover of the water resistance tank and the other end connected to the transmission unit; an angle-adjustable structure is connected to the rotating shaft; a blade is connected to the angle-adjustable structure to adjust and lock the blade tilt angle. This achieves blade angle adjustment and locking, preventing load changes during use.

[0018] According to this utility model, the angle-adjustable structure further includes a first bevel gear set mounted on the rotating shaft;

[0019] The first bevel gear set includes a first bevel gear and a long connecting shaft. The long connecting shaft is fitted around the outer circumference of the rotating shaft. Both ends of the long connecting shaft are connected to the first bevel gear. The outer circumference of the first bevel gear set is connected to a blade.

[0020] One end of the blade is provided with a second bevel gear that meshes with the first bevel gear.

[0021] According to this utility model, the angle-adjustable structure further includes a second bevel gear set, which is disposed at one end of the rotating shaft near the rear cover of the water resistance box.

[0022] The second bevel gear set includes a short connecting shaft and a first bevel gear connected to both ends of the short connecting shaft. The length of the short connecting shaft is shorter than the length of the long connecting shaft.

[0023] According to this utility model, it further includes a rotary locking switch disposed on the housing of the water resistance box. The top of the rotary locking switch is located above the housing of the water resistance box. The top of the rotary locking switch has a knob. The bottom of the rotary locking switch is provided with a third bevel gear that meshes with the first bevel gear connected to the short connecting shaft via a connecting rod.

[0024] According to this utility model, the rotating shaft is a circular shaft with two opposing keyways extending along its length on its outer circumference. Correspondingly, a sleeve is provided on the outer circumference of the rotating shaft, and the inner wall of the sleeve has protrusions that match the keyways, so as to realize the mating connection between the rotating shaft and the sleeve.

[0025] According to this utility model, the connecting rod is a hollow structure and a segmented structure, with a water injection hole running vertically through the rod. This improves the convenience of filling the water resistance tank with water.

[0026] According to this invention, the blade rotation angle range is further defined as 0°-360°, thereby improving the load adjustment range. Attached Figure Description

[0027] Figure 1 This is a first-view structural schematic diagram of a water resistance rowing device according to the present invention.

[0028] Figure 2 This is a schematic diagram of a water resistance rowing device according to the present invention (excluding the aquarium and transmission housing);

[0029] Figure 3 This is a second-view structural schematic diagram of a water resistance rowing device according to the present invention.

[0030] Among them, 100-support frame, 110-slide rail, 120-support, 121-friction pad, 122-pulley, 200-seat, 300-water resistance box, 310-rotary locking switch, 311-knob, 312-connecting rod, 3121-water injection hole, 313-third bevel gear, 400-transmission part, 500-handheld structure, 510-hollow tube, 520-handheld part, 530-elastic belt, 600-foot pedal, 700-rotating shaft, 710-first bevel gear set, 711-first bevel gear, 712-long connecting shaft, 720-second bevel gear set, 721-short connecting shaft, 800-blade, 810-second bevel gear. Detailed Implementation

[0031] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] This utility model provides a water resistance rowing device, such as Figures 1-3As shown, the device includes a support frame 100, which is elongated. A slide rail 110 is provided on the support frame 100, and a seat 200 is slidably connected to the slide rail 110. A foot pedal 600 is also fixedly connected to the support frame 100. The foot pedal 600 includes foot pedals located on the left and right sides of the support frame 100. When exercising, the exerciser sits on the seat 200, with both feet on the corresponding foot pedals to avoid contact between the feet and the ground. The exerciser holds onto the handhold 520, which will be described in detail below. By pulling the handhold 520, the seat 200 slides along the slide rail 110, thereby achieving the purpose of exercising arm strength.

[0033] The support frame 100 is also fixedly connected to the water resistance box 300 and the transmission part 400 for transmitting motion. The transmission part 400 applies the resistance of the water resistance box 300 to the exerciser. The transmission part 400 is provided with a resilient hand grip structure 500 for the exerciser to hold. The resilient hand grip structure 500 includes a hollow tube 510 and a hand grip 520 disposed on the outside of the hollow tube 510. The hollow tube 510 is preferably a hollow square tube. An elastic band 530 is provided inside the hollow tube 510. One end of the elastic band 530 is fixedly connected to the hand grip 520, and the other end passes through the hollow structure of the hollow tube 510 and is connected to the transmission part 400. The water resistance tank 300 is filled with liquid. The exerciser sits on the seat 200 with both feet on the corresponding footrests 600 and hands holding the handles 520. By pulling the handles 520, the exerciser leans back, and the elastic band 530 stretches under the exerciser's pulling force. The exerciser's hips move the seat 200 towards the water resistance tank 300. The elastic band 530 rebounds with its own elasticity, pulling the exerciser's upper body towards the water resistance tank 300. The hips move the seat 200 away from the water resistance tank 300 along the length of the support frame 100, thus completing one reciprocating exercise.

[0034] The transmission unit 400 includes a wheel 410 and a belt 420 wound around the outer circumference of the wheel 410. One end of the belt 420 is fixedly connected to an elastic belt 530, and the other end of the elastic belt 530 is fixedly connected to the output end of the transmission unit 400. A connecting shaft connected to the center of the wheel 410 is connected to a rotating shaft 700 inside the water resistance box 300, thereby connecting the transmission unit 400 and the blade adjustment structure inside the water resistance box 300. Preferably, the belt 420 is a multi-wedge belt. Specifically, the teeth are arranged in parallel along the length of the belt. Correspondingly, the grooves on the outer circumference of the wheel 410 are annular grooves, with multiple grooves distributed along the axial direction of the outer circumference of the wheel 410. The annular grooves of the wheel 410 mesh with the teeth of the belt 420. Compared with existing synchronous belts, the multi-wedge belt and the wheel 410 work together to make the transmission unit more stable and less prone to lateral wobbling of the wheel 410 in the axial direction.

[0035] Furthermore, the bottom of the support bracket 100 is provided with a support 120. There are two supports 120, located on both sides of the length of the support bracket 100. Because the rowing machine is heavy, in order to avoid friction on the placement surface and cause wear, a friction pad 121 is provided at the bottom of the support 120 to prevent the support 120 from directly contacting the placement surface. During exercise, the friction between the support 120 and the placement surface is reduced, thus reducing damage to the placement surface.

[0036] To facilitate the movement and transport of the rowing machine, a pulley 122 is installed on or near the top surface of the support 120. One pulley 122 may be used, but preferably, for ease of dragging, pulleys 122 are used in pairs. In use, lifting the other end of the support bracket 100 brings the pulley 122 into contact with the ground, and pulling the support bracket 100 allows the pulley 122 to slide on the ground, moving the support bracket 100 to a new position, thus saving time and effort in transporting the machine.

[0037] In order to increase water resistance and adapt to the load requirements of different athletes, a rotating shaft 700 is provided inside the water resistance box 300. One end of the rotating shaft 700 is connected to the transmission part 400, and the other end is connected to the rear cover of the water resistance box 300. A first bevel gear set 710 and a second bevel gear set 720 are fitted around the outer periphery of the rotating shaft 700. The second bevel gear set 720 is a single unit and is located at one end of the rotating shaft 700 near the rear cover. The first bevel gear set 710 is located between the second bevel gear set 720 and the transmission part 400. The first bevel gear set 710 includes a first bevel gear 711 and a long connecting shaft 712. The long connecting shaft 712 has a hollow structure, and both ends of it are connected to the first bevel gear 711. A blade 800 is connected around the outer periphery of the bevel gear set 710. One end of the blade 800 is provided with a second bevel gear 810 that meshes with the first bevel gear 711. The second bevel gear set 720 includes a short connecting shaft 721 and the first bevel gear 711 connected to both ends of the short connecting shaft 721. The length of the short connecting shaft 721 is shorter than the length of the long connecting shaft 712. Preferably, the blades 800 are configured in three groups, with each group consisting of two blades symmetrically arranged about the axis of rotation 700.

[0038] In this embodiment, the rotating shaft 700 is a round shaft, which is easy to process. Two opposing keyways extending along its length are provided on the outer periphery of the rotating shaft 700. Correspondingly, a sleeve is provided on the outer periphery of the rotating shaft 700. The inner wall of the sleeve has protrusions that match the keyways, so as to realize the mating connection between the rotating shaft 700 and the sleeve. The relative position of the rotating shaft 700 and the sleeve will not change during the rotation process, thereby improving the accuracy of adjusting the blade.

[0039] To facilitate adjustment of the rotation angle of the first bevel gear set 710 and the second bevel gear set 720, a rotary locking switch 310 is connected to the housing of the water resistance tank 300. The top of the rotary locking switch 310 is located above the housing of the water resistance tank 300. The top of the rotary locking switch 310 has a knob 311. The bottom of the rotary locking switch 310 is provided with a third bevel gear 311 that meshes with the first bevel gear 711 connected to the short connecting shaft 721 via a connecting rod 312. Rotating the knob 311 causes the third bevel gear 311 to drive the first bevel gear 711 connected to the short connecting shaft 721 to rotate, which in turn drives the blade 800 to rotate through the first bevel gear set 710, and locks the angle after rotation. The rotation angle range is 0°-360°. By changing the angle of the blade 800, the resistance of the liquid in the water resistance tank 300 is increased, thereby adjusting the load of the water resistance tank 300.

[0040] Furthermore, the connecting rod 312 of the rotary locking switch 310 has a hollow structure and is segmented, with the upper segment fitted around the outer periphery of the lower segment. The connecting rod 312 has a water injection hole 3121. When water needs to be injected, the connecting rod 312 is pulled upward, and the third bevel gear 311 disengages from the first bevel gear 711 connected to the short connecting shaft 721. The bottom of the connecting rod 312 is open, and water is injected into the water resistance box 300 through the water injection hole 3121. The water enters the water resistance box 300 through the bottom of the connecting rod 312, thus injecting water into the water resistance box 300. After the water is injected, the connecting rod 312 is pushed downward, so that the third bevel gear 311 meshes with the first bevel gear 711 connected to the short connecting shaft 721.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water resistance rowing device, characterized in that, include: The support frame is long and narrow, and has sliding tracks on it; The seat is for exercisers to sit down and move around; the seat is slidably connected to the track. The foot pedals are fixedly connected to the support frame and are located on the left and right sides of the support frame. They are used by the athlete to step on them with both feet during exercise. The water resistance box is fixedly connected to the support frame via a water resistance box bracket; the water resistance box is equipped with an adjustable blade structure. The transmission unit is fixedly connected to the support frame. The resilient handheld structure includes a hollow tube and a handheld part disposed on the outside of the hollow tube. An elastic band is disposed inside the hollow tube, with one end of the elastic band fixedly connected to the handheld part and the other end fixedly connected to the output end of the transmission part.

2. The water resistance rowing device as described in claim 1, characterized in that: The transmission unit includes a wheel and a belt wound around its outer circumference; wherein, a connecting shaft is provided at the center of the wheel, one end of which is coaxially connected to the adjustable blade structure in the water resistance box; the belt is wound around the outer circumference of the wheel, and the belt is a multi-wedge belt, and correspondingly, an annular groove is provided on the outer circumference of the wheel to cooperate with the multi-wedge belt.

3. The water resistance rowing device as described in claim 1, characterized in that: The bottom of the support frame is provided with a support, and a friction pad is provided at the bottom of the support; a pulley is provided on the top surface of the support.

4. The water resistance rowing device as described in claim 2, characterized in that: The adjustable blade structure includes a rotating shaft with one end connected to the rear cover of the water resistance tank and the other end connected to the transmission unit; an angle-adjustable structure is connected to the rotating shaft; blades are connected to the angle-adjustable structure to adjust and lock the blade tilt angle.

5. A water resistance rowing device as described in claim 4, characterized in that: The angle-adjustable structure includes a first bevel gear set mounted on a rotating shaft; The first bevel gear set includes a first bevel gear and a long connecting shaft. The long connecting shaft is fitted around the outer circumference of the rotating shaft. Both ends of the long connecting shaft are connected to the first bevel gear. The outer circumference of the first bevel gear set is connected to a blade. One end of the blade is provided with a second bevel gear that meshes with the first bevel gear.

6. A water resistance rowing device as described in claim 5, characterized in that: The angle-adjustable structure also includes a second bevel gear set, which is located at one end of the rotating shaft near the rear cover of the water resistance box. The second bevel gear set includes a short connecting shaft and a first bevel gear connected to both ends of the short connecting shaft. The length of the short connecting shaft is shorter than the length of the long connecting shaft.

7. A water resistance rowing device as described in claim 1 or 6, characterized in that: It also includes a rotary locking switch installed on the housing of the water resistance box. The top of the rotary locking switch is located above the housing of the water resistance box. The top of the rotary locking switch has a knob, and the bottom of the rotary locking switch is provided with a third bevel gear that meshes with the first bevel gear connected to the short connecting shaft via a connecting rod.

8. A water resistance rowing device as described in claim 4, characterized in that: The rotating shaft is a circular shaft with two opposing keyways extending along its length on its outer circumference. Correspondingly, a sleeve is provided on the outer circumference of the rotating shaft, and the inner wall of the sleeve has protrusions that match the keyways, so as to realize the mating connection between the rotating shaft and the sleeve.

9. A water resistance rowing device as described in claim 7, characterized in that: The connecting rod is a hollow structure and a segmented structure, with a water injection hole running through the top and bottom.

10. A water resistance rowing device as described in claim 5, characterized in that: The blade rotation angle range is 0°-360°.

Images