Rowing machine having adjustable water resistance

Abstract

The present invention provides a rowing machine having adjustable water resistance, comprising a water resistance tank and rotatable paddles arranged in the interior of the water resistance tank, and further comprising a water storage drum arranged in the interior of the water resistance tank and a water level adjusting apparatus arranged between the water resistance tank and the water storage drum. A water storage cavity is formed in the interior of the water storage drum. A resistance cavity is formed in the interior of the water resistance tank and is located outside the water storage drum. The paddles are rotated, such that part of a liquid in the resistance cavity is driven in the resistance cavity by means of the paddles. A water discharge hole is provided on the water storage drum. The water level adjusting apparatus adjusts the height of a liquid level in the water storage cavity, and the part of the liquid higher than the liquid level adjusted to by the water level adjusting apparatus is discharged by means of the water discharge hole. According to the rowing machine of the present invention, by means of providing the water level adjusting apparatus so as to adjust the water level in the water storage drum to be at different heights, when the paddles in the rowing machine rotate, part of the liquid in a water tank enters the water storage drum, and when the water level reaches the adjusted height, excess water may be discharged by means of the water discharge hole.

Description

Rowing machine with adjustable water resistance Technical Field

[0001] The present invention relates to the technical field of rowing machines, in particular to a rowing machine with adjustable water resistance. Background Art

[0002] Rowing machines, also known as rowing machines, rowing machines, rowing machines, rowing machines, ergometers, land-based rowing machines, and indoor rowing machines, are machines used for training purposes to simulate the sport of rowing on water. Currently, rowing machines offer three main resistance modes: wind resistance, magnetic resistance, and water resistance. Water-resistance rowing machines offer the best simulation technology, allowing users to experience the sight, sound, and feel of real rowing. During exercise, the fluid resistance and the changes in wheel speed are used to strengthen the body's muscles in a short period of time, particularly in the legs, waist, upper limbs, chest, and back. Each complete contraction and extension provides a full aerobic workout for all muscles. Technical issues

[0003] The water resistance boxes of existing rowing machines are mostly divided into three placement methods according to needs: horizontal placement, inclined placement, and vertical placement. Although the water resistance of the different placement methods will be different, a single placement method cannot quickly adjust the water resistance. Currently, when the water resistance needs to be adjusted, more liquid needs to be added or liquid needs to be extracted, but this operation is not convenient for quick adjustment.

[0004] In view of this, the inventor specially designed a rowing machine with adjustable water resistance, which resulted in the present invention. Technical Solutions

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide a rowing machine with adjustable water resistance. By providing a water level adjustment device to adjust the water level within the water storage tank to different heights, as the paddles within the rowing machine rotate, some of the liquid in the water tank enters the water storage tank. When the water level reaches the adjusted height, the excess water is discharged through the water outlet, thus overcoming the problem of the inability to quickly adjust the resistance of existing rowing machines.

[0006] According to the present invention, a rowing machine with adjustable water resistance includes a water resistance box and a rotatable paddle blade disposed inside the water resistance box, a water storage bucket disposed inside the water resistance box, and a water level regulating device disposed between the water resistance box and the water storage bucket.

[0007] A water storage chamber is formed inside the water storage barrel, and a resistance chamber is formed inside the water resistance box and outside the water storage barrel. Part of the liquid in the resistance chamber is driven into the resistance chamber by the rotating paddle blade. A water outlet is provided on the water storage barrel. The water level regulating device regulates the liquid level in the water storage chamber, and the part of the liquid whose level is higher than the level regulated by the water level regulating device is discharged through the water outlet.

[0008] The rowing machine of the present invention is provided with a water level regulating device to adjust the water level in the water storage barrel to different heights. When the paddles in the rowing machine rotate, part of the liquid in the water tank will enter the water storage barrel. When the water level reaches the adjusted height, the excess water will be discharged through the water outlet, thereby achieving the effect of regulating water resistance.

[0009] In some embodiments of the present invention, a water inlet channel is provided between the water storage barrel and the inner side of the water resistance box so that the paddles drive part of the liquid into the water storage barrel.

[0010] In some embodiments of the present invention, the water storage barrel includes a bottom shell and a side portion arranged at an outer edge of the bottom shell.

[0011] In some embodiments of the present invention, the water resistance box and the water storage barrel are both placed horizontally, the water inlet channel is located at the upper edge of the side, and the water outlet is provided on the end surface of the bottom shell.

[0012] In some embodiments of the present invention, the water level regulating device includes a bottom plate, a rotating shaft arranged on the bottom plate and vertically connected to the bottom plate, a plurality of drainage steps arranged on the bottom plate and arranged in sequence along the circumferential direction of the rotating shaft, and a partition plate with a bottom arranged on the bottom plate and located between the drainage steps and the rotating shaft. The heights of the plurality of drainage steps gradually increase along the central axis direction of the rotating shaft. Drainage holes that can be connected to the water outlet are arranged on the bottom plate corresponding to the plurality of drainage steps, and drainage steps and drainage holes are arranged between each pair of the partition plates.

[0013] In some embodiments of the present invention, the water resistance box and the water storage barrel are both placed at an angle, that is, forming an angle with the horizontal plane, the angle is 0-90 degrees, a groove is provided on the side to form the water inlet channel, and the water outlet is provided on the side and close to the lower side.

[0014] In some embodiments of the present invention, the water level adjustment device includes an adjustment block arranged on the inner side of the water storage barrel and slidably connected to the water storage barrel, and a driving member for driving the adjustment block to slide, and the driving member drives the adjustment block to slide to adjust the size of the opening above the water outlet.

[0015] In some embodiments of the present invention, the driving member includes a rotating rod and a gear mounted on the rotating rod, and a plurality of tooth grooves cooperating with the gears are provided on the inner side of the adjusting block; the adjusting block includes an arc-shaped main body, a first sliding groove and a second sliding groove provided above and below the main body, and a plurality of the tooth grooves are provided on the inner side of the main body, a first sliding step cooperating with the first sliding groove is provided on the top inner side of the water tank, and a second sliding step cooperating with the second sliding groove is provided on the bottom inner side of the water storage barrel.

[0016] In some embodiments of the present invention, a rotating shaft connected to the paddle is further included, and the water storage barrel is further provided with a sleeve for being sleeved on the outer side wall of the rotating shaft.

[0017] In some embodiments of the present invention, a knob is further provided for driving the water level regulating device to adjust the liquid level. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] in:

[0020] FIG1 is a schematic structural diagram of embodiment 1 of the present invention;

[0021] FIG2 is an exploded view of embodiment 1 of the present invention;

[0022] FIG3 is a schematic structural diagram of the upper housing of Example 1 of the present invention;

[0023] FIG4 is a schematic structural diagram of a water storage barrel in Example 1 of the present invention;

[0024] FIG5 is a structural diagram of the water level regulating device in Example 1 of the present invention;

[0025] FIG6 is a second structural diagram of the water level regulating device in Example 1 of the present invention;

[0026] FIG7 is a schematic structural diagram of Example 2 of the present invention;

[0027] FIG8 is an exploded view of Example 2 of the present invention;

[0028] FIG9 is a partial enlarged view of FIG8 of the present invention;

[0029] FIG10 is a schematic diagram of a partial structure of Example 2 of the present invention;

[0030] 11 is a schematic structural diagram of the upper housing in Example 2 of the present invention;

[0031] Figure 12 is a schematic diagram of the structure of the water storage barrel in Example 2 of the present invention

[0032] FIG13 is a schematic structural diagram of the adjustment block in Example 2 of the present invention.

[0033] Description of labels:

[0034] 10. Water resistance box; 11. Lower shell; 12. Upper shell; 121. Water injection hole; 122. Mounting hole; 123. First annular step; 20. Paddle; 30. Water storage barrel; 31. Bottom shell; 32. Side; 33. Bushing; 40. Water level regulating device; 411. Bottom plate; 4111. Drain hole; 412. Rotating shaft; 413. Drain step; 414. Partition; 421. Adjustment block; 4211. Main body; 4212. Tooth groove; 4213. First sliding groove; 4214. Second sliding groove; 422. Driving member; 4221. Rotating rod; 4222. Gear; 423. First sliding step; 424. Second sliding step; 50. Knob; 60. Rotating shaft; 70. Sealing block; 80. Sealing plug. Best Mode for Carrying Out the Invention

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] Please refer to Figures 1 to 13, which show an adjustable water resistance rowing machine as an embodiment of the present invention. The rowing machine includes a water resistance box 10 and a rotatable paddle blade 20 disposed inside the water resistance box 10. The rowing machine also includes a water storage barrel 30 disposed inside the water resistance box 10 and a water level regulating device 40 disposed between the water resistance box 10 and the water storage barrel 30. The paddle blade 20 is disposed below the water storage barrel 30. A water storage chamber is formed inside the water storage barrel 30, and a resistance chamber is formed inside the water resistance box 10 and outside the water storage barrel 30. Part of the liquid in the resistance chamber of the rotating paddle blade 20 is driven into the resistance chamber by the paddle blade 20. A water outlet is provided on the water storage barrel 30. The water level regulating device 40 regulates the liquid level in the water storage chamber, and the portion of the liquid that is higher than the level regulated by the water level regulating device 40 is discharged through the water outlet. The rowing machine of the present invention is provided with a water level regulating device 40 to adjust the water level in the water storage barrel 30 to different heights. When the paddles 20 in the rowing machine rotate, part of the liquid in the water tank will enter the water storage barrel 30. When the water level reaches the adjusted height, the excess water will be discharged through the water outlet, thereby achieving the effect of regulating water resistance.

[0037] A water inlet channel is provided between the water storage barrel 30 and the inner side of the water resistance box 10, allowing the paddle 20 to drive some of the liquid into the water storage barrel 30. The water resistance box 10 includes a lower shell 11 and an upper shell 12, forming a chamber between the upper shell 12 and the lower shell 11. A first annular step 123 is provided at the inner top of the upper shell 12. The water storage barrel 30 is fastened to the upper shell 12 via a plurality of bolts. A plurality of internally threaded holes are provided along the circumference of the first annular step 123. The bolts pass through the bottom of the water storage barrel 30 and are screwed into the internally threaded holes. The water storage barrel 30 includes a bottom shell 31 and a side portion 32 provided on the outer edge of the bottom shell 31. The side portion 32 is abutted against the first annular step 123.

[0038] The rowing machine of the present invention also includes a rotating shaft 60 connected to the paddle blade 20. The rotating shaft 60 passes through the water storage barrel 30 and is connected to the paddle blade 20. The structure of the paddle blade 20 and the connection with the rotating shaft 60 are both existing technologies and will not be described in detail. A sleeve 33 is also provided on the water storage barrel 30 for being sleeved on the outer wall of the rotating shaft 60. The sleeve 33 can prevent liquid from flowing into the resistance chamber along the side wall of the rotating shaft 60. The water storage barrel 30 is made of plastic, and the bottom, side 32 and sleeve 33 are integrally formed by injection molding. The present invention also provides a knob 50 for driving the water level regulating device 40 to adjust the liquid level height; the upper shell 12 is also provided with a water injection hole 121 connected to the chamber, and the water injection hole 121 is also provided with a sealing plug 80, which facilitates the injection of liquid through the water injection hole 121 and is sealed by the sealing plug 80; the upper shell 12 is also provided with a mounting hole 122, and a sealing block 70 is provided on the outer side of the upper shell 12 at the mounting hole 122. The sealing block 70 not only plays a sealing role, but also plays a supporting role when the knob 50 rotates; the sealing block 70 is locked to the upper shell 12 by a plurality of bolts, and the knob 50 is locked to the water level regulating device 40 by a bolt passing through the knob 50.

[0039] Please refer to Figures 1-6 for details. An adjustment method of Example 1 of the present invention is as follows: the water resistance box 10 and the water storage barrel 30 are both placed horizontally, the water inlet channel is located at the upper edge of the side portion 32, and the water outlet is provided on the end surface of the bottom shell 31. In this adjustment method, the water inlet channel can be directly opened on the first annular step 123, that is, a notch is opened in the first annular step 123 to form the water inlet channel; the water level adjustment device 40 includes a bottom plate 411, a rotating shaft 412 provided on the bottom plate 411 and vertically connected to the bottom plate 411, and a rotating shaft 412 provided on the bottom plate 411 and along the rotating shaft. A plurality of drainage steps 413 are sequentially provided in the circumferential direction of the shaft 412, and a partition 414 is provided on the bottom plate 411 and is located between the drainage steps 413 and the rotating shaft 412. The heights of the plurality of drainage steps 413 gradually increase along the central axis direction of the rotating shaft 412, and the outer sides of the plurality of drainage steps 413 are surrounded to form a cylindrical shape. A second annular step is provided on the bottom shell 31 to match the cylindrical shape to facilitate the rotation of the rotating shaft 412; drainage holes 4111 that can be connected to the water outlet are provided on the bottom plate 411 corresponding to the plurality of drainage steps 413, and the partition 414 is provided two by two. Drain steps 413 and drainage holes 4111 are provided between the plates 414. The height of the partition plates 414 corresponding to the drainage steps 413 must be equal to or higher than the corresponding drainage steps 413. When one of the drainage holes 4111 is connected to the water outlet, the height of the drainage step 413 corresponding to the drainage hole 4111 is the liquid level that can be maintained in the water storage barrel 30. When the blades 20 rotate and drive part of the liquid into the water, the liquid level rises and the excess is discharged into the resistance chamber. When the resistance needs to be increased, the rotary shaft 412 is rotated by the knob 50, and the lower drainage step 413 is lowered. The corresponding drainage holes 4111 are connected to the water outlet holes, which can reduce the liquid level in the water storage barrel 30, and more water flows into the resistance space to increase the resistance during exercise. When the resistance needs to be reduced, the rotary shaft 412 is rotated by the knob 50, and the drainage holes 4111 corresponding to the higher drainage steps 413 are connected to the water outlet holes. After multiple rotations of the blades 20, part of the liquid in the resistance space enters the water outlet space through the water inlet channel. Since the liquid has not reached a certain height, it will not be discharged into the resistance space through the first drainage hole 4111 at this time, and the required resistance can be gradually achieved.

[0040] Please refer to Figures 7-13 for details. One adjustment method of Example 2 of the present invention is: the water resistance box 10 and the water storage barrel 30 are both placed at an angle, that is, they form an angle with the horizontal plane, which is an acute angle; a groove is provided on the side 32 to form a water inlet channel, and the water outlet is provided on the side 32 and close to the lower side; the water level adjustment device 40 includes an adjustment block 421 provided on the inner side of the water storage barrel 30 and slidably connected to the water storage barrel 30, and a driving member 422 for driving the adjustment block 421 to slide, and the driving member 422 drives the adjustment block 421 to slide to adjust the size of the opening above the water outlet. In some embodiments of the present invention, the driving member 422 includes a rotating rod 4221, a gear 4222 sleeved on the rotating rod 4221, and a plurality of tooth grooves 4212 cooperating with the gear 4222 are provided on the inner side of the adjusting block 421; the adjusting block 421 includes an arc-shaped main body 4211, a first sliding groove 4213 and a second sliding groove 4214 provided above and below the main body 4211, a plurality of tooth grooves 4212 are provided on the inner side of the main body 4211, a first sliding step 423 cooperating with the first sliding groove 4213 is provided at the top inner side of the water tank (the first sliding step 423 is located at the inner top end of the upper shell 12), and a second sliding step 424 cooperating with the second sliding groove 4214 is provided at the bottom inner side of the water storage barrel 30 (the second sliding step 424 is located on the bottom shell 31). Specifically, the first sliding groove 4213 is located at the top of the inner side of the upper shell 12 and inside the first annular step 123 , and a third annular step is provided on the bottom shell 31 to cooperate with the bottom of the rotating rod 4221 to facilitate the rotation of the rotating rod 4221 .

[0041] The principle of adjustment of the rowing machine of the present invention is as follows:

[0042] Before use, the required liquid is first injected through the water injection hole 121, and then the knob 50 is rotated to drive the water level regulating device 40 to adjust the required water level height. The liquid in the water storage barrel 30 can enter the resistance space through the water outlet channel. During exercise, the paddle 20 rotates, and part of the liquid in the resistance chamber is driven by the paddle 20 to flow into the water storage chamber through the water inlet channel, and the liquid that flows into the water storage chamber above the adjusted height flows back into the resistance chamber through the water outlet hole. When it is necessary to increase the resistance, the knob 50 is rotated to drive the water level regulating device 40 to lower the water level in the water storage chamber, and the excess liquid flows into the resistance chamber through the water outlet hole, and more liquid flows into the resistance space to increase the resistance during exercise. When it is necessary to reduce the resistance, the knob 50 is rotated to drive the water level regulating device 40 to increase the water level in the water storage chamber. After multiple rotations of the paddle 20, part of the liquid in the resistance chamber enters the water storage chamber through the water inlet channel. Since it has not reached a certain height, the liquid will not be discharged from the water outlet hole to the resistance chamber. Continuing to rotate the paddle 20 can gradually achieve the required resistance.

[0043] In summary, the rowing machine of the present invention is provided with a water level regulating device to adjust the water level in the water tank to different heights. When the blades in the rowing machine rotate, part of the liquid in the water tank will enter the water tank. When the water level reaches the adjusted height, the excess water will be discharged through the water outlet, thereby achieving the effect of regulating water resistance.

[0044] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A rowing machine with adjustable water resistance, comprising a water resistance box (10) and a rotatable paddle (20) arranged inside the water resistance box (10), characterized in that: It also includes a water storage barrel (30) disposed inside the water resistance box (10), and a water level regulating device (40) disposed between the water resistance box (10) and the water storage barrel (30); A water storage chamber is formed inside the water storage barrel (30), and a resistance chamber is formed inside the water resistance box (10) and outside the water storage barrel (30). When the paddle (20) rotates, part of the liquid in the resistance chamber is driven into the resistance chamber through the paddle (20). A water outlet is provided on the water storage barrel (30). The water level regulating device (40) regulates the liquid level in the water storage chamber, and the part of the liquid whose level is higher than that regulated by the water level regulating device (40) is discharged through the water outlet.

2. The rowing machine with adjustable water resistance according to claim 1, characterized in that: A water inlet channel is provided between the water storage barrel (30) and the inner side of the water resistance box (10) so that the paddle (20) drives part of the liquid into the water storage barrel (30).

3. The rowing machine with adjustable water resistance according to claim 2, characterized in that: The water storage barrel (30) comprises a bottom shell (31) and a side portion (32) arranged on the outer edge of the bottom shell (31).

4. The rowing machine with adjustable water resistance according to claim 3, characterized in that: The water resistance box (10) and the water storage barrel (30) are both placed horizontally, the water inlet channel is located at the upper edge of the side portion (32), and the water outlet is provided on the end surface of the bottom shell (31).

5. The rowing machine with adjustable water resistance according to claim 4, characterized in that: The water level regulating device (40) comprises a bottom plate (411), a rotating shaft (412) arranged on the bottom plate (411) and vertically connected to the bottom plate (411), a plurality of drainage steps (413) arranged on the bottom plate (411) and arranged in sequence along the circumferential direction of the rotating shaft (412), and a partition plate (414) arranged on the bottom plate (411) and located between the drainage steps (413) and the rotating shaft (412). The heights of the plurality of drainage steps (413) gradually increase along the central axis direction of the rotating shaft (412). Drainage holes (4111) that can communicate with the water outlet are arranged on the bottom plate (411) corresponding to the plurality of drainage steps (413). A drainage step (413) and a drainage hole (4111) are provided between each pair of the partition plates (414).

6. The rowing machine with adjustable water resistance according to claim 3, characterized in that: The water resistance box (10) and the water storage barrel (30) are both placed at an angle, a groove is provided on the side portion (32) to form the water inlet channel, and the water outlet is provided on the side portion (32) and close to the lower side.

7. The rowing machine with adjustable water resistance according to claim 6, characterized in that: The water level regulating device (40) comprises a regulating block (421) disposed inside the water storage barrel (30) and slidably connected to the water storage barrel (30), and a driving member (422) for driving the regulating block (421) to slide, wherein the driving member (422) drives the regulating block (421) to slide to adjust the size of the opening above the water outlet.

8. The rowing machine with adjustable water resistance according to claim 7, characterized in that: The driving member (422) comprises a rotating rod (4221), a gear (4222) sleeved on the rotating rod (4221), and a plurality of tooth grooves (4212) cooperating with the gear (4222) are provided on the inner side of the regulating block (421); the regulating block (421) comprises an arc-shaped main body (4211), a first sliding groove (4213) and a second sliding groove (4214) provided above and below the main body (4211), and a plurality of the tooth grooves (4212) are provided on the inner side of the main body (4211); a first sliding step (423) cooperating with the first sliding groove (4213) is provided on the inner top of the water tank, and a second sliding step (424) cooperating with the second sliding groove (4214) is provided on the inner bottom of the water storage barrel (30).

9. The rowing machine with adjustable water resistance according to claim 1, characterized in that: It also includes a rotating shaft (60) connected to the paddle (20), and the water storage barrel (30) is also provided with a shaft sleeve (33) for being sleeved on the outer side wall of the rotating shaft (60).

10. The rowing machine with adjustable water resistance according to claim 1, characterized in that: A knob (50) is also provided for driving the water level regulating device (40) to regulate the liquid level.

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