A rowing machine with adjustable water resistance

Abstract

The utility model discloses a kind of rowing machines with adjustable water resistance, and it relates to rowing machine technical field.The utility model includes upper shell, lower shell is arranged in the lower of upper shell, and upper shell and lower shell are fixedly connected by mounting bolt, the cavity between upper shell and lower shell is used to store water source during training, and it further includes training mechanism, and the training mechanism is arranged in cavity inside.The utility model is by being provided with adjusting assembly, specifically is to start drive motor one and drive gear ring frame to rotate, when gear ring frame rotates, limit bushing and moving rod are rotated by gear, and then paddle is rotated, the angle of rotating paddle can control water resistance, when angle increases, water resistance increases, it is suitable for simulating high-intensity exercise scene such as boat against current, when angle decreases, water resistance decreases, it is suitable for beginner or low-intensity recovery training, improve the equipment versatility, also reduced the operation of constantly injecting and discharging water, reduce water waste.

Description

Technical Field

[0001] This utility model belongs to the field of rowing device technology, and in particular relates to an adjustable water resistance rowing device. Background Technology

[0002] In traditional rowing machine designs, the blade angle is usually fixed. This fixed angle design has certain limitations. For example, users of different skill levels have different needs for strength and rhythm during rowing. For beginners, the fixed blade angle may feel too much or too little resistance, making it difficult to find the appropriate exercise intensity. If the resistance is too high, beginners may quickly feel fatigued because they cannot complete the rowing motion smoothly, and may even suffer sports injuries such as muscle strains due to improper force. On the other hand, if the resistance is too low, it will not achieve an effective exercise effect and cannot simulate the resistance feeling of real rowing. At the same time, the traditional way to adjust the resistance is by injecting and releasing water, which increases the operation steps and wastes water. Therefore, an adjustable water resistance rowing machine is proposed. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable water resistance rowing machine. Specifically, by activating a drive motor, the gear ring rotates. The rotation of the gear ring, through gears, drives the limiting sleeve and the moving rod to rotate, which in turn drives the paddle blades. The angle of the paddle blades controls the water resistance; a larger angle increases water resistance, suitable for simulating high-intensity exercise scenarios such as rowing against the current, while a smaller angle decreases water resistance, suitable for beginners or low-intensity recovery training. This invention solves the problem of traditional rowing machine designs where the paddle blade angle is usually fixed. This fixed-angle design has certain limitations, such as the ability to accommodate users of different skill levels. The demands on strength and rhythm during rowing vary. For beginners, a fixed-angle paddle may feel too much or too little resistance, making it difficult to find the right level of exercise intensity. If the resistance is too high, beginners may quickly become fatigued because they cannot complete the rowing motion smoothly, and may even suffer sports injuries such as muscle strains due to improper force application. On the other hand, if the resistance is too low, it will not achieve an effective training effect and will not be able to simulate the resistance feeling of real rowing. In addition, the traditional method of adjusting resistance is through the injection and release of water, which increases the number of steps involved and also increases the waste of water.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to an adjustable water resistance rowing machine, comprising an upper shell, a lower shell disposed below the upper shell, the upper shell and the lower shell being fixedly connected by mounting bolts, and a cavity between the upper shell and the lower shell for storing water during training. It also includes:

[0006] A training mechanism, which is located inside a cavity, is used by users to perform rowing training.

[0007] The training mechanism includes an adjustment component, which includes a gear ring holder.

[0008] Furthermore, a rotating rod is rotatably connected to the top of the upper housing, the rotating rod passes through the upper housing and extends to the top and bottom, a sealing plug is provided at the water inlet at the top of the upper housing, a sealing plug is provided at the water outlet on the side of the lower housing, and a sealing ring is provided at the connection between the upper housing and the rotating rod;

[0009] Both the upper and lower housings are transparent.

[0010] Furthermore, the training facility also includes:

[0011] A stirring assembly, disposed inside a cavity, agitates the water source via a rotating rod, thereby enabling rowing training; and

[0012] An unfolding component is connected to an adjusting component, the adjusting component being used to further refine the adjustment of water resistance.

[0013] Furthermore, the agitation assembly includes a support frame disposed inside the cavity, the top of the support frame being welded to the bottom of the rotating rod, and a plurality of blades being disposed outside the support frame;

[0014] Several of the blades are arranged in a semi-circular shape.

[0015] Furthermore, a drive motor is installed on the top of the gear ring frame, the top of the drive motor is connected to the inner wall of the support frame, a slide rail is welded to the inner wall of the support frame, the outer ring of the gear ring frame is rotatably connected to the inside of the slide rail, the bottom output end of the drive motor is connected to the inside of the gear ring frame through a coupling, and several gears are meshed on the bottom edge of the gear ring frame.

[0016] Furthermore, each of the gears has a limiting sleeve welded inside, the outer surface of each limiting sleeve is rotatably connected to the inside of the support frame and extends to the outside, each limiting sleeve has a moving rod inside, each limiting sleeve has a sliding groove on its inner wall, each moving rod has a sliding strip welded to its outer surface, each sliding groove is slidably connected to the outer surface of the sliding strip, and each limiting sleeve has a sealing device at the connection with the support frame.

[0017] In this case, the interior of several of the grooves is adapted to the outer surface of the slide bar.

[0018] Furthermore, the unfolding assembly includes a second drive motor. The top output end of the second drive motor is connected to a rotating shaft via a coupling. The bottom of the second drive motor is welded to the inner wall of the support frame. A turntable is welded to the outer surface of the rotating shaft. The turntable has several arc-shaped grooves inside. Each of the arc-shaped grooves contacts a connecting rod. Each connecting rod passes through the arc-shaped groove and extends to the top and bottom. Several push rods are provided on the top of the turntable. Each push rod is located inside a limiting sleeve. The sides of the push rods that are close to each other are connected to the outer surface of the connecting rods. The ends of the push rods that are away from the connecting rods are rotatably connected to the sides of the moving rods that are close to each other.

[0019] Among them, the interior of several of the arc-shaped grooves is adapted to the outer surface of the connecting rod.

[0020] This utility model has the following beneficial effects:

[0021] This invention features an adjustment component. Specifically, starting the drive motor rotates the gear ring frame. When the gear ring frame rotates, it drives the limit sleeve and the moving rod to rotate via gears, which in turn drives the paddle to rotate. The rotation angle of the paddle can control the water resistance. When the angle increases, the water resistance increases, which is suitable for simulating high-intensity exercise scenarios such as rowing against the current. When the angle decreases, the water resistance decreases, which is suitable for beginners or low-intensity recovery training. This improves the versatility of the equipment and also reduces the need for continuous water injection and discharge, thus reducing water waste.

[0022] This invention utilizes a deployment assembly. Specifically, a second drive motor rotates a rotating shaft, which in turn rotates a turntable. The turntable, via an arc-shaped groove, moves a connecting rod, which in turn moves a push rod and a moving rod. This, in turn, causes the paddle blades to move closer or further apart. Adjusting the distance between the blades changes the rotation radius; a larger radius results in a longer paddle path, requiring more effort from the rower, while a smaller radius makes rowing easier. This allows for refined resistance adjustment, facilitating adjustments to training intensity and further enhancing the equipment's versatility.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the cross-sectional structure of the support frame of this utility model;

[0028] Figure 4 This is a schematic diagram of the overall structure of the gear ring frame of this utility model;

[0029] Figure 5 This utility model Figure 4 A magnified overall structural diagram of A in the middle;

[0030] Figure 6 This is a schematic diagram of the cross-sectional structure of the turntable of this utility model.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 111. Upper housing; 112. Lower housing; 113. Mounting bolt; 114. Sealing plug one; 115. Sealing plug two; 116. Rotating rod; 117. Sealing ring; 2. Training mechanism; 21. Agitation assembly; 211. Support frame; 212. Paddle; 22. Adjustment assembly; 221. Drive motor one; 222. Gear ring frame; 223. Slide rail; 224. Gear; 225. Limiting sleeve; 226. Moving rod; 227. Slide groove; 228. Slide bar; 23. Unfolding assembly; 231. Drive motor two; 232. Push rod; 233. Rotating shaft; 234. Turntable; 235. Arc groove; 236. Connecting rod. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-6 As shown, this utility model is an adjustable water resistance rowing machine, including an upper shell 111, a lower shell 112 disposed below the upper shell 111, the upper shell 111 and the lower shell 112 are fixedly connected by mounting bolts 113, the cavity between the upper shell 111 and the lower shell 112 is used to store water during training, and also includes:

[0035] Training mechanism 2 is located inside the cavity and is used by the user for rowing training. Training mechanism 2 includes adjustment component 22, which includes gear ring 222.

[0036] A rotating rod 116 is rotatably connected to the top of the upper housing 111. The rotating rod 116 passes through the upper housing 111 and extends to the top and bottom. A sealing plug 114 is provided at the water inlet at the top of the upper housing 111, and a sealing plug 115 is provided at the water outlet on the side of the lower housing 112. A sealing ring 117 is provided at the connection between the upper housing 111 and the rotating rod 116. Both the upper housing 111 and the lower housing 112 are transparent.

[0037] Training facility 2 also includes:

[0038] A stirring component 21 is disposed inside the cavity. Driven by a rotating rod 116, the stirring component 21 agitates the water source, enabling rowing training.

[0039] Expand component 23 is connected to adjustment component 22, which is used to further refine the adjustment of water resistance.

[0040] The stirring assembly 21 includes a support frame 211, which is disposed inside the cavity. The top of the support frame 211 is welded to the bottom of the rotating rod 116. Several blades 212 are disposed outside the support frame 211, and the blades 212 are all semi-circular.

[0041] A drive motor 221 is mounted on the top of the gear ring frame 222. The top of the drive motor 221 is connected to the inner wall of the support frame 211. A slide rail 223 is welded to the inner wall of the support frame 211. The outer ring of the gear ring frame 222 is rotatably connected to the inside of the slide rail 223. The bottom output end of the drive motor 221 is connected to the inside of the gear ring frame 222 through a coupling. Several gears 224 are meshed on the bottom edge of the gear ring frame 222.

[0042] Each gear 224 has a limiting sleeve 225 welded inside. The outer surface of each limiting sleeve 225 is rotatably connected to the inside of the support frame 211 and extends to the outside. Each limiting sleeve 225 has a moving rod 226 inside. Each limiting sleeve 225 has a sliding groove 227 on its inner wall. Each moving rod 226 has a sliding strip 228 welded to its outer surface. Each sliding groove 227 is slidably connected to the outer surface of the sliding strip 228. Each limiting sleeve 225 has a sealing device at the connection with the support frame 211. The internal components are all adapted to the outer surface of the slide bar 228. The start-up drive motor 221 drives the gear ring frame 222 to rotate. When the gear ring frame 222 rotates, it drives the limit sleeve 225 and the moving rod 226 to rotate through the gear 224, which in turn drives the blade 212 to rotate. The rotation angle of the blade 212 can control the water resistance. When the angle increases, the water resistance increases, which is suitable for simulating high-intensity exercise scenarios such as rowing against the current. When the angle decreases, the water resistance decreases, which is suitable for beginners or low-intensity recovery training. This improves the versatility of the equipment and also reduces the operation of constantly injecting and discharging water, thus reducing water waste.

[0043] The unfolding assembly 23 includes a second drive motor 231. The top output end of the second drive motor 231 is connected to a rotating shaft 233 via a coupling. The bottom of the second drive motor 231 is welded to the inner wall of the support frame 211. A turntable 234 is welded to the outer surface of the rotating shaft 233. The turntable 234 has several arc-shaped grooves 235 inside, and each of the arc-shaped grooves 235 contacts a connecting rod 236. The connecting rods 236 pass through the arc-shaped grooves 235 and extend to the top and bottom. Several push rods 232 are provided on the top of the turntable 234. The push rods 232 are all located inside the limiting sleeve 225. The sides of the push rods 232 that are close to each other are all in contact with the outer surface of the connecting rods 236. The connection involves several push rods 232, with the ends of each push rod 232 away from the connecting rod 236 rotatably connected to the side of the moving rod 226 that is closer to each other. Several arc-shaped grooves 235 are fitted to the outer surface of the connecting rod 236. When the drive motor 231 is activated, it drives the rotating shaft 233 to rotate. The rotating shaft 233 drives the turntable 234 to rotate, and the turntable 234, through the arc-shaped grooves 235, drives the connecting rod 236 to move. The connecting rod 236 then moves the push rods 232 and the moving rod 226, thereby causing the paddle blades 212 to move closer or further apart. Adjusting the distance between the paddle blades 212 changes their rotation radius. A larger radius results in a longer paddling path for the paddle blades 212, requiring more force from the rower; a smaller radius makes paddling easier. This allows for refined resistance adjustment, facilitating adjustments to training intensity and further improving the equipment's applicability.

[0044] A specific application of this embodiment is as follows: In use, the upper housing 111 and the lower housing 112 are first connected by multiple mounting bolts 113. Then, water is added into the cavity between the upper housing 111 and the lower housing 112 by opening the first sealing plug 114. After subsequent use, the water is discharged through the second sealing plug 115. At the same time, when the rotating rod 116 rotates, it drives multiple paddles 212 to rotate through the support frame 211. During the rotation of the multiple paddles 212, the water inside is stirred, thus simulating rowing training. During training, the user can adjust the water resistance of the multiple paddles 212 according to the training needs. Specifically, the drive motor 221 is started to drive the gear ring frame 222 to rotate. During the rotation of the gear ring frame 222, its outer ring rotates inside the slide rail 223. At the same time, the outer ring of the slide rail 223 provides a certain support force to the gear ring frame 222 by welding it to the inner wall of the support frame 211. Meanwhile, the top of the drive motor 221 is connected and fixed to the inner wall of the support frame 211. During the rotation of the gear ring 222, multiple gears 224 drive multiple limiting sleeves 225 to rotate together. During the rotation of the limiting sleeves 225, multiple moving rods 226 are driven to rotate through the sliding grooves 227 and sliding bars 228. During the rotation of the moving rods 226, the paddle blades 212 are driven to rotate. By rotating the angle of the paddle blades 212, the water resistance can be precisely controlled. When the angle of the paddle blades 212 increases, the contact area between the paddle blades 212 and the water increases, and the "angle of attack" of the paddle blades 212 into the water increases, which increases the resistance of the water to the paddle blades 212. For example, in scenarios that simulate rowing against the current or require high-intensity exercise, the angle of the paddle blades 212 can be increased to allow the rower to feel greater resistance, thereby better exercising muscle strength. Conversely, when the angle of the paddle blades 212 decreases, the water resistance decreases, which is suitable for beginners or low-intensity recovery training, just like rowing easily on calm water. This makes it suitable for users at different stages and improves the versatility of the equipment.

[0045] Simultaneously, the user can activate the drive motor 231 to rotate the shaft 233. During the rotation of the shaft 233, the turntable 234 will rotate as well. As the turntable 234 rotates, it will drive the connecting rods 236 through multiple arc-shaped grooves 235. At this time, the connecting rods 236 will move closer or further apart. During the movement of the connecting rods 236, the push rod 232 will move, and simultaneously, during the movement of the push rod 232, the propeller blades 212 will move through the moving rod 226. At this time, the propeller blades 212 will move closer or further apart. Simultaneously, during the movement of the moving rod 226, the slide bar 22 will move. 8. The paddles slide inside the groove 227. By adjusting the multiple paddles 212 to move closer or further apart, the radius of rotation of the multiple paddles 212 can be adjusted, which can further refine the resistance adjustment. A larger rotation radius means that the paddles 212 travel a longer path in the water. According to the lever principle, the rower needs to apply more force to drive the paddles 212 to complete one rowing cycle. This is similar to rowing, where the paddles 212 enter and exit the water at a farther position, and the rower needs to expend more effort to overcome the water resistance. A smaller rotation radius makes the rowing process relatively easy and facilitates the adjustment of training intensity, thereby further improving the applicability of the equipment.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An adjustable water resistance rowing machine, comprising an upper housing (111), a lower housing (112) disposed below the upper housing (111), the upper housing (111) and the lower housing (112) being fixedly connected by mounting bolts (113), and a cavity between the upper housing (111) and the lower housing (112) being used to store water for training, characterized in that, Also includes: Training mechanism (2), the training mechanism (2) is set inside the cavity, the training mechanism (2) is used for users to perform rowing training; The training mechanism (2) includes an adjustment component (22), which includes a gear ring frame (222).

2. The adjustable water resistance rowing device according to claim 1, characterized in that, The top of the upper housing (111) is rotatably connected to a rotating rod (116), which passes through the upper housing (111) and extends to the top and bottom. A sealing plug (114) is provided at the water inlet at the top of the upper housing (111), and a sealing plug (115) is provided at the water outlet on the side of the lower housing (112). A sealing ring (117) is provided at the connection between the upper housing (111) and the rotating rod (116). The upper shell (111) and the lower shell (112) are both transparent.

3. The adjustable water resistance rowing device according to claim 1, characterized in that, The training facility (2) also includes: A stirring assembly (21) is disposed inside a cavity. The stirring assembly (21) is driven by a rotating rod (116) to agitate the water source, thereby enabling rowing training; and The unfolding component (23) is connected to the adjusting component (22), which is used to further refine the adjustment of water resistance.

4. The adjustable water resistance rowing device according to claim 3, characterized in that, The stirring assembly (21) includes a support frame (211), which is disposed inside the cavity. The top of the support frame (211) is welded to the bottom of the rotating rod (116), and a plurality of blades (212) are disposed outside the support frame (211). Among them, several of the blades (212) are arranged in a semi-circular shape.

5. The adjustable water resistance rowing device according to claim 1, characterized in that, A drive motor (221) is mounted on the top of the gear ring frame (222). The top of the drive motor (221) is connected to the inner wall of the support frame (211). A slide rail (223) is welded to the inner wall of the support frame (211). The outer ring of the gear ring frame (222) is rotatably connected to the inside of the slide rail (223). The bottom output end of the drive motor (221) is connected to the inside of the gear ring frame (222) through a coupling. Several gears (224) are meshed on the bottom edge of the gear ring frame (222).

6. The adjustable water resistance rowing device according to claim 5, characterized in that, Each of the gears (224) has a limiting sleeve (225) welded inside. The outer surface of each limiting sleeve (225) is rotatably connected to the inside of the support frame (211) and extends to the outside. Each of the limiting sleeves (225) has a moving rod (226) inside. Each of the limiting sleeves (225) has a sliding groove (227) on its inner wall. Each of the moving rods (226) has a sliding strip (228) welded to its outer surface. Each of the sliding grooves (227) is slidably connected to the outer surface of the sliding strip (228). Each of the limiting sleeves (225) has a sealing device at the connection between it and the support frame (211). Among them, the interior of several of the grooves (227) is adapted to the outer surface of the slide bar (228).

7. The adjustable water resistance rowing device according to claim 3, characterized in that, The unfolding assembly (23) includes a second drive motor (231). The top output end of the second drive motor (231) is connected to a rotating shaft (233) via a coupling. The bottom of the second drive motor (231) is welded to the inner wall of the support frame (211). A turntable (234) is welded to the outer surface of the rotating shaft (233). Several arc-shaped grooves (235) are opened inside the turntable (234). Each of the arc-shaped grooves (235) contacts a connecting rod (236). The connecting rods (236) all pass through the arc-shaped grooves (235) and extend to the top and bottom. The top of the turntable (234) is provided with a number of push rods (232). The number of push rods (232) are all located inside the limiting sleeve (225). The sides of the push rods (232) that are close to each other are connected to the outer surface of the connecting rods (236). The ends of the push rods (232) that are away from the connecting rods (236) are rotatably connected to the sides of the moving rods (226) that are close to each other. Among them, the interior of several of the arc-shaped grooves (235) is adapted to the outer surface of the connecting rod (236).

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