Dumbbell rod for dumbbell
By setting an adjustment wheel assembly and a limit groove on the dumbbell bar, the automatic loading and unloading of dumbbell plates is achieved, solving the problem of manual weight adjustment required for traditional dumbbells and improving the convenience and precision of dumbbell use.
Patent Information
- Application Number
- CN202520652377.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-04-08
AI Technical Summary
Traditional dumbbells require users to manually remove and install weight plates to adjust the weight, which is inconvenient and results in a poor user experience.
Design a dumbbell bar with adjustment wheel assemblies on both sides of the bar body. The adjustment wheels have a coarse diameter section and a fine diameter section. By rotating the dumbbell bar, the adjustment wheels cooperate with the dumbbell plate connector to realize the automatic loading and unloading of dumbbell plates. The adjustment wheel assembly cooperates with the limit groove and reset part on the dumbbell rack to ensure stability and smoothness.
It enables automated adjustment of dumbbell plates, allowing users to easily adjust the weight distribution of dumbbells, increasing the precision and rationality of the adjustment levels, and improving the user experience.
Smart Images
Figure CN223615322U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fitness equipment technology, specifically relating to a dumbbell bar for dumbbells. Background Technology
[0002] Currently, with the improvement of people's living standards, people are paying more and more attention to exercising with fitness equipment to increase muscle strength and sculpt muscle definition. Dumbbells are a commonly used fitness tool, used for muscle strength training and compound muscle exercises. Traditional dumbbells consist of a dumbbell bar and multiple dumbbell plates fitted to both ends of the bar. The dumbbell plates need to be individually assembled onto the spindle to adjust the weight, which is inconvenient and results in a poor user experience. Utility Model Content
[0003] This invention provides a dumbbell bar for dumbbells, aiming to solve the problem that existing dumbbells require users to manually install and remove dumbbell plates to adjust the weight, which is inconvenient for users.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0005] A dumbbell bar for use with dumbbells, the dumbbell bar comprising:
[0006] A rod body, wherein a grip portion is provided in the middle of the rod body; and,
[0007] The left and right sets of adjustment wheel assemblies are located on the left and right sides of the rod body, respectively. Each set of adjustment wheel assemblies includes several adjustment wheels. The several adjustment wheels are arranged along the axial direction of the rod body and are all connected to the rod body for synchronous rotation. Each adjustment wheel has a thin diameter section and a thick diameter section in the circumferential direction.
[0008] The dumbbell bar is used on dumbbells, and the dumbbells include:
[0009] The base has two sets of dumbbell plate assemblies, left and right, each set including several dumbbell plates; each adjusting wheel corresponds to one dumbbell plate; and...
[0010] A dumbbell rack, wherein the dumbbell bar is rotatably mounted on the dumbbell rack; each of the adjusting wheels and its corresponding dumbbell plate is provided with a dumbbell plate connector that is slidably mounted on the dumbbell rack, and a reset member is provided between the dumbbell plate connector and the dumbbell rack;
[0011] When the dumbbell bar is rotated so that the thicker section of one of the adjusting wheels engages with its corresponding dumbbell plate connector, the dumbbell plate connector slides toward the corresponding dumbbell plate, loading the dumbbell plate from the base onto the dumbbell rack. When the dumbbell bar is rotated so that the thinner section of one of the adjusting wheels engages with its corresponding dumbbell plate connector, the dumbbell plate connector slides away from the corresponding dumbbell plate under the resetting action of the reset member, unloading the dumbbell plate from the dumbbell rack onto the base.
[0012] A further embodiment: several of the adjusting wheels include at least one cam, with a coarse diameter section and a fine diameter section surrounding the cam.
[0013] Based on the above technical solution: by setting a coarse diameter section and a fine diameter section on the cam, when there are multiple cams, it is convenient to design the weight range of the dumbbell by designing the proportion of the coarse diameter section and the fine diameter section of different cams.
[0014] A further option: When the number of cams is two or more, the proportion of the narrow diameter segment in all the cams of each set of adjusting wheel assemblies gradually decreases from the side away from the grip to the side closer to the grip.
[0015] Based on the above technical solution: the above setting ensures that when the dumbbell bar is rotated to adjust the weight, the dumbbell plates closer to the grip will be loaded onto the dumbbell rack first, thus loading the dumbbell plates onto the dumbbell rack sequentially from the side closer to the grip to the side farther away from the grip, which is more reasonable and orderly.
[0016] A further embodiment: Each set of adjusting wheel assemblies further includes a flower wheel disposed at the end of the rod body, the flower wheel having a number of thin diameter segments and a number of thick diameter segments, and the number of thin diameter segments and the number of thick diameter segments are alternately arranged around the flower wheel in the circumference.
[0017] Based on the above technical solution: by setting several thin-diameter segments and several thick-diameter segments on the rotating wheel, and alternating them around the circumference of the rotating wheel, when adjusting the weight of the dumbbell by rotating the dumbbell bar, the dumbbell plates corresponding to the rotating wheel can be repeatedly added or removed, thus allowing adjustment to more weight levels. For example, if the dumbbell plates corresponding to the cam are all 1kg and the dumbbell plates corresponding to the rotating wheel are 0.25kg, then the weight level of the dumbbell can be adjusted to 0.5kg, 2kg, 2.5kg, 4kg, 4.5kg, etc., thereby increasing the number of weight levels and allowing users to more precisely adjust to the weight level suitable for their own exercise.
[0018] A further embodiment: Each of the adjusting wheels is provided with a first transition section between the thin diameter section and the thick diameter section, which transitions from the thin diameter section to the thick diameter section in a clockwise or counterclockwise direction, and a second transition section between the thick diameter section and the thin diameter section.
[0019] A further embodiment: the second transition section on all the cams is located on the same straight line parallel to the axis of the rod.
[0020] Based on the above technical solution: the above settings ensure that, in the initial state, the starting points of the coarse diameter sections of all cams are on the same straight line, so that no dumbbell plates are loaded on the dumbbell rack, making it convenient to adjust the weight settings of the dumbbells.
[0021] A further solution: Both the first transition section and the second transition section are slopes.
[0022] Based on the above technical solution: by setting both the first transition section and the second transition section as ramps, it is easy for the adjusting wheel to smoothly transition from the coarse diameter section to the fine diameter section when rotating the dumbbell bar.
[0023] A further embodiment: The dumbbell rack is provided with a plurality of limiting grooves, the plurality of limiting grooves are arranged along the axial direction of the dumbbell bar, and the plurality of adjusting wheels are respectively set in the plurality of limiting grooves.
[0024] Based on the above technical solution: by setting the adjusting wheel in the corresponding limiting groove, the adjusting wheel is prevented from moving left and right, thus improving its stability when it is connected with the dumbbell plate connector.
[0025] A further solution: The bottom of the limiting groove is provided with a clearance hole, which is used for the adjustment wheel to contact and engage with the corresponding dumbbell plate connector.
[0026] A further embodiment: In each set of the adjusting wheel assembly, each pair of adjacent adjusting wheels is provided with a plug and a slot, and the plug is inserted into the slot to connect the two adjacent adjusting wheels to rotate synchronously.
[0027] The dumbbell rack is equipped with a dial assembly that rotates synchronously with the dumbbell bar, and the adjustment wheel located near the grip is fixedly connected to the dial assembly.
[0028] Based on the above technical solution, the above configuration facilitates the assembly of the adjustment wheel onto the dumbbell bar.
[0029] The beneficial effects of this utility model are as follows:
[0030] This invention features a dumbbell bar rotatably mounted on a dumbbell rack, allowing users to load or unload dumbbell plates from the base onto the rack by rotating the bar, facilitating weight adjustment. Two sets of adjusting wheels, corresponding to the left and right dumbbell plate assemblies respectively, enable simultaneous balanced weight adjustment on both sides of the rack. Each adjusting wheel has a thicker and a thinner section. During bar rotation, when the thicker section reaches the dumbbell plate connecting bracket, the wheel drives the connecting plate towards the corresponding dumbbell plate, loading it from the base. When the thicker section reaches the connecting bracket, a reset mechanism moves the bracket away from the plate, maintaining contact with the adjusting wheel and unloading the plate from the rack. This invention offers an optimized structural design and a more rational layout. Attached Figure Description
[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0032] Figure 1 This is a schematic diagram of the adjusting wheel assembly of this utility model located on the rod in the first direction.
[0033] Figure 2 This is a schematic diagram of the adjusting wheel assembly of this utility model located on the rod in the second direction.
[0034] Figure 3 This is a schematic diagram of the dumbbell structure of this utility model.
[0035] Figure 4 This is a schematic cross-sectional view of the dumbbell of this utility model in the first direction.
[0036] Figure 5 yes Figure 4 A magnified structural diagram at point A.
[0037] Figure 6 This is an exploded structural diagram of the dumbbell of this utility model.
[0038] Figure 7 This is a schematic cross-sectional view of the dumbbell of this utility model in the second direction.
[0039] Figure 8 This is a schematic diagram of the exploded structure of two adjacent adjusting wheels.
[0040] Figure 9 This is a schematic diagram of the dumbbell plates.
[0041] Explanation of the labels in the diagram:
[0042] 1-Dumbbell rack; 11-Limiting groove; 12-Dumbbell plate connector; 13-Scale assembly; 14-Reset component; 2-Bar body; 21-Hand grip; 3-Cam; 31-Coarse diameter section; 32-Fine diameter section; 33-First transition section; 34-Second transition section; 35-Plug-in part; 36-Slot; 4-Gear; 5-Dumbbell plate; 51-Locking component; 6-Base. Detailed Implementation
[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0044] like Figures 1 to 9 As shown, this embodiment provides a dumbbell bar for use with dumbbells, the dumbbell bar comprising:
[0045] Rod body 2, wherein a grip portion 21 is provided in the middle of the rod body 2; and,
[0046] The left and right sets of adjustment wheel assemblies are located on the left and right sides of the rod 2, respectively. Each set of adjustment wheel assemblies includes several adjustment wheels. The several adjustment wheels are arranged along the axial direction of the rod 2 and are all synchronously rotated and connected with the rod 2. Each adjustment wheel is provided with a thin diameter section 32 and a thick diameter section 31 in the circumferential direction.
[0047] The dumbbell bar is used on dumbbells, and the dumbbells include:
[0048] The base 6 has two sets of dumbbell plate assemblies, left and right, each set including several dumbbell plates 5; each adjusting wheel corresponds one-to-one with each dumbbell plate 5; and...
[0049] A dumbbell rack 1 is provided, with the dumbbell bar rotatably mounted on the dumbbell rack 1; each of the adjustment wheels and its corresponding dumbbell plate 5 is provided with a dumbbell plate connector 12 that is slidably mounted on the dumbbell rack 1, and a reset member 14 is provided between the dumbbell plate connector 12 and the dumbbell rack 1;
[0050] When the dumbbell bar is rotated so that the coarse diameter section 31 on one of the adjusting wheels engages with its corresponding dumbbell plate connector 12, the dumbbell plate connector 12 slides toward its corresponding dumbbell plate 5 and loads the dumbbell plate 5 from the base 6 onto the dumbbell rack 1. When the dumbbell bar is rotated so that the fine diameter section 32 on one of the adjusting wheels engages with its corresponding dumbbell plate connector 12, the dumbbell plate connector 12 slides away from its corresponding dumbbell plate 5 under the reset action of the reset member 14 and unloads the dumbbell plate 5 from the dumbbell rack 1 onto the base 6.
[0051] In some implementations, such as Figure 1 and Figure 2 As shown, each of the several adjusting wheels includes at least one cam 3, with a coarse-diameter section 31 and a fine-diameter section 32 surrounding the cam 3. When there are two or more cams 3, the proportion of the fine-diameter section 32 in all the cams 3 of each adjusting wheel assembly gradually decreases from the side away from the grip 21 to the side closer to the grip 21, thereby facilitating the adjustment of the weight distribution of the dumbbell rack 1 by loading dumbbell plates 5 at different positions. Specifically, during the rotation of the dumbbell bar, when the coarse-diameter section 31 of the cam 3 engages with the corresponding dumbbell plate 5 connecting bracket, the dumbbell plate 5 connecting bracket is always in a state of loading the corresponding dumbbell plate 5 onto the dumbbell rack 1; for the fine-diameter section 32, the dumbbell plate 5 connecting bracket is always in a state of unloading the corresponding dumbbell plate 5 onto the base 6.
[0052] In some implementations, such as Figures 1 to 4 As shown, to enable more weight adjustment levels for the dumbbells, each set of adjustment wheel assemblies also includes a patterned wheel 4 located at the end of the bar 2. The patterned wheel 4 has several thin-diameter sections 32 and several thick-diameter sections 31, which are alternately arranged around the circumference of the patterned wheel 4. Specifically, for example, if the dumbbell plates 5 corresponding to the cam 3 are all 1kg and the dumbbell plates 5 corresponding to the patterned wheel 4 are 0.25kg, then the weight adjustment levels of the dumbbells can be increased to 0.5kg, 2kg, 2.5kg, 4kg, 4.5kg, etc., thus increasing the number of weight levels.
[0053] In some implementations, such as Figure 1 and Figure 2 As shown, each of the adjusting wheels has a first transition section 33 between the thinner diameter section 32 and the thicker diameter section 31, transitioning from the thinner diameter section 32 to the thicker diameter section 31 in a clockwise or counterclockwise direction, and a second transition section 34 between the thicker diameter section 31 and the thinner diameter section 32. Specifically, it can be configured along the circumferential direction of the increase in the number of gears when rotating the dumbbell bar. The second transition section 34 on all the cams 3 is located on the same straight line parallel to the axis of the rod body 2.
[0054] Specifically, both the first transition section 33 and the second transition section 34 are slopes, or they can be set as arc-shaped slopes.
[0055] In some implementations, such as Figure 6 and Figure 7 As shown, the dumbbell rack 1 is provided with a plurality of limiting grooves 11, which are arranged along the axial direction of the dumbbell bar. A plurality of adjusting wheels are correspondingly arranged in the plurality of limiting grooves 11. An annular partition is provided between each pair of adjacent limiting grooves 11 to prevent the adjusting wheels from sliding left or right.
[0056] The bottom of the limiting groove 11 is provided with a clearance hole, which is used for the adjusting wheel to contact and engage with the corresponding dumbbell plate connector 12.
[0057] In some embodiments, in each group of adjusting wheel assemblies, each pair of adjacent adjusting wheels is provided with a plug-in portion 35 and a slot 36, wherein the plug-in portion 35 is inserted into the slot 36 to connect the two adjacent adjusting wheels to rotate synchronously.
[0058] The dumbbell rack 1 is provided with a dial assembly 13 that rotates synchronously with the dumbbell bar, and the adjustment wheel located near the grip 21 is fixedly connected to the dial assembly 13.
[0059] In this embodiment, as Figures 4 to 9 As shown, in one specific embodiment of the dumbbell plate 5 connecting bracket, the dumbbell plate 5 connecting bracket is located below the adjusting wheel; the dumbbell plate 5 connecting bracket includes two sliders arranged side by side on the left and right, both sliders are inclined and slide up and down on the dumbbell frame 1, and each slider is provided with a reset member 14 between itself and the dumbbell frame 1. The reset member 14 is specifically a spring. Under the action of the spring, the upper end of the slider always remains against the adjusting wheel. There is a locking block on the side of the two sliders that are close to each other. The dumbbell plate 5 is provided with a protruding locking member 51, and the locking member 51 is provided with a slot; when the dumbbell bar is rotated so that the thick diameter section 31 on a certain cam 3 abuts against the two corresponding sliders, the two sliders slide downwards from the left and right sides respectively, and move towards the locking member 51 on the corresponding dumbbell plate 5, so that the locking block on the slider engages into the slot on the locking member 51, thereby loading the corresponding dumbbell plate 5 from the base 6 onto the dumbbell frame 1. During this process, the spring is compressed. When the dumbbell bar is rotated so that the narrow section 32 on the adjusting wheel engages with its two corresponding sliders, the spring's reset action drives the two sliders to tilt and slide upwards to the left and right sides respectively, moving them away from each other. At this time, the locking blocks on both sliders disengage from the locking slots on the locking member 51, and the corresponding dumbbell plates 5 are unloaded from the dumbbell rack 1 onto the base 6.
[0060] Working principle explanation:
[0061] When the dumbbell bar is rotated so that the thicker section 31 on a certain adjusting wheel engages with its corresponding dumbbell plate connector 12, the dumbbell plate connector 12 slides toward its corresponding dumbbell plate 5 and loads the dumbbell plate 5 from the base 6 onto the dumbbell rack 1. When the dumbbell bar is rotated so that the thinner section 32 on a certain adjusting wheel engages with its corresponding dumbbell plate connector 12, the dumbbell plate connector 12 slides away from its corresponding dumbbell plate 5 under the resetting action of the reset member 14 and unloads the dumbbell plate 5 from the dumbbell rack 1 onto the base 6.
[0062] This utility model is not limited to the above-mentioned optional embodiments. Under the premise of non-contradiction, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the guidance of this utility model. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope of the claims of this utility model are within the protection scope of this utility model.
Claims
1. A dumbbell bar for use with dumbbells, characterized in that, The dumbbell bar includes: A rod body, wherein a grip portion is provided in the middle of the rod body; and, The left and right sets of adjustment wheel assemblies are located on the left and right sides of the rod body, respectively. Each set of adjustment wheel assemblies includes several adjustment wheels. The several adjustment wheels are arranged along the axial direction of the rod body and are all connected to the rod body for synchronous rotation. Each adjustment wheel has a thin diameter section and a thick diameter section in the circumferential direction. The dumbbell bar is used on dumbbells, and the dumbbells include: The base has two sets of dumbbell plate assemblies, left and right, each set including several dumbbell plates; each adjusting wheel corresponds to one dumbbell plate; and... A dumbbell rack, wherein the dumbbell bar is rotatably mounted on the dumbbell rack; each of the adjusting wheels and its corresponding dumbbell plate is provided with a dumbbell plate connector that is slidably mounted on the dumbbell rack, and a reset member is provided between the dumbbell plate connector and the dumbbell rack; When the dumbbell bar is rotated so that the thicker section of one of the adjusting wheels engages with its corresponding dumbbell plate connector, the dumbbell plate connector slides toward the corresponding dumbbell plate, loading the dumbbell plate from the base onto the dumbbell rack. When the dumbbell bar is rotated so that the thinner section of one of the adjusting wheels engages with its corresponding dumbbell plate connector, the dumbbell plate connector slides away from the corresponding dumbbell plate under the resetting action of the reset member, unloading the dumbbell plate from the dumbbell rack onto the base.
2. A dumbbell bar for use with dumbbells according to claim 1, characterized in that, The plurality of adjusting wheels includes at least one cam, with a coarse diameter section and a fine diameter section surrounding the cam.
3. A dumbbell bar for use with dumbbells according to claim 2, characterized in that, When the number of cams is two or more, the proportion of the narrow section in all the cams of each set of adjustment wheel assemblies gradually decreases from the side away from the grip to the side closer to the grip.
4. A dumbbell bar for use with dumbbells according to claim 2, characterized in that, Each set of adjusting wheel assemblies also includes a flower wheel disposed at the end of the rod body, the flower wheel having a number of thin diameter sections and a number of thick diameter sections, and the number of thin diameter sections and the number of thick diameter sections are alternately arranged around the flower wheel in the circumference.
5. A dumbbell bar for use with dumbbells according to claim 2, characterized in that, Each of the adjusting wheels is provided with a first transition section between the thin diameter section and the thick diameter section, which transitions from the thin diameter section to the thick diameter section in a clockwise or counterclockwise direction, and a second transition section between the thick diameter section and the thin diameter section.
6. A dumbbell bar for use with dumbbells according to claim 5, characterized in that, The second transition section on all the cams is located on the same straight line parallel to the axis of the rod.
7. A dumbbell bar for use with dumbbells according to claim 5, characterized in that, Both the first transition section and the second transition section are slopes.
8. A dumbbell bar for use with dumbbells according to claim 1, characterized in that, The dumbbell rack is provided with a number of limiting grooves, which are arranged along the axial direction of the dumbbell bar, and a number of adjusting wheels are correspondingly set in the limiting grooves.
9. A dumbbell bar for use with dumbbells according to claim 8, characterized in that, The bottom of the limiting groove is provided with a clearance hole, which is used for the adjustment wheel to contact and engage with the corresponding dumbbell plate connector.
10. A dumbbell bar for use with dumbbells according to claim 1, characterized in that, In each set of the adjusting wheel assembly, each pair of adjacent adjusting wheels is provided with a plug and a slot, and the plug is inserted into the slot to connect the two adjacent adjusting wheels to rotate synchronously. The dumbbell rack is equipped with a dial assembly that rotates synchronously with the dumbbell bar, and the adjustment wheel located near the grip is fixedly connected to the dial assembly.