Patent Application
20250090889
This application is based upon and claims priority to Chinese Patent Application No. 202322549894.7, filed on Sep. 19, 2023, the entire contents of which are incorporated herein by reference.
The present disclosure relates to the technical field of fitness equipment, and in particular to a weight-visualized dumbbell.
As a fitness equipment favored by fitness enthusiasts, the dumbbell can be used to train strength of a user's arms. The dumbbell can be placed at home for its small size, such that fitness enthusiasts can take exercises without going to fitness rooms.
The dumbbell typically includes a plurality of weight plates, a grab handle assembly configured for the weight plates to be mounted, and a base configured for the weight plates to be placed. The grab handle assembly includes a handle tube, a plate selection mechanism provided on the handle tube, an internal end cover, and an external end cover. For the existing dumbbell in markets, gears can be shifted by rotating the handle tube on the grab handle assembly, thereby adjusting the number of weight plates on the grab handle assembly. Labels indicating the number or the weight and in one-to-one correspondence with the gears are further marked on the existing dumbbell, such that the user knows the number or the weight of the dumbbell at the present gear when adjusting the weight plates.
However, the labels of the existing dumbbell are directly marked on the outer sidewall of the internal end cover or the peripheral surface of the internal end cover. When the dumbbell is used, the labels marked on the outer sidewall of the internal end cover are worn easily. After long-time use, the labels become unclear to affect the reading experience. For the labels marked on the peripheral surface of the internal end cover, the protective cover is provided for the peripheral surface of the internal end cover to prevent the wear. Nevertheless, this structure increases the overall size of the internal end cover to some extent.
In order to solve the problem that labels marked on an outer sidewall of an internal end cover are worn easily or a protective cover is provided for the labels marked on a peripheral surface of the internal end cover to increase a size of a dumbbell, the present disclosure provides a weight-visualized dumbbell.
The preset application employs the following technical solutions to realize the weight-visualized dumbbell.
A weight-visualized dumbbell includes two weight plate sets and a grab handle assembly configured to suspend and grip the weight plate sets, where the grab handle assembly includes a handle tube, an end cover assembly connected to the handle tube, and a plate selection mechanism connected to the handle tube and rotating synchronously with the handle tube; the plate selection mechanism is provided with a plurality of gears that are driven by the handle tube to rotate relative to the weight plate sets; when the plate selection mechanism rotates to different gears, different numbers of weight plates are fixedly suspended and gripped; a display mechanism is provided in the end cover assembly; the display mechanism rotates synchronously with the handle tube; the display mechanism is provided with labels that are in one-to-one correspondence with the gears of the plate selection mechanism and are each configured to display a weight of the dumbbell at a present gear; and a display opening configured for the label to be exposed is formed in the end cover assembly.
According to the above technical solution, the labels are in one-to-one correspondence with the gears of the plate selection mechanism. When the plate selection mechanism is shifted to some gear by rotating the handle tube, the label of the display mechanism can display a value on the weight of the weight plates at the present gear. The label can be directly observed by a user through the display opening, thereby being simple and convenient. Since the display mechanism is provided in the end cover assembly, the label is protected by the end cover assembly, and the label is not damaged easily. Meanwhile, there is no need to additionally provide a protective cover on the end cover assembly to protect the display mechanism, thereby reducing a size of the internal end cover.
Optionally, the display mechanism includes a locating disc coaxial with the handle tube and configured to rotate synchronously with the handle tube, and a display disc provided on the end cover assembly and cooperating with the locating disc; a plurality of locating recesses are uniformly formed in a circumferential direction of the locating disc; a driven toothed portion cooperating with the locating recesses is provided in a circumferential direction of the display disc; each of the locating recesses corresponds to one of the gears of the plate selection mechanism; and the label is located on the display disc.
According to the above technical solution, when the gear of the dumbbell is shifted by rotating the handle tube, the locating disc can rotate synchronously with the handle tube. Meanwhile, the locating disc can drive the display disc to rotate, such that the value of the label can change in response to the gear. The above structure is simple. The locating recesses are engaged with the driven toothed portion, such that the display disc can limit the locating disc to some extent. After the gear of the dumbbell is shifted, the handle tube is not prone to rotation.
Optionally, a number of the locating recesses doubles a number of the gears of the plate selection mechanism.
According to the above technical solution, when the dumbbell is placed on a bearing surface, the handle tube cannot be rotated 360° by the user without moving the dumbbell. When the number of the locating recesses doubles the number of the gears of the plate selection mechanism, the gears of the plate selection mechanism each can be shifted once by rotating the handle tube for a half of a circumference. This facilitates adjustment of the user on the gear of the dumbbell.
Optionally, the weight-visualized dumbbell further includes a base configured for the weight plate sets to be placed; the base is provided with a limiting member; a stop mechanism is further movably provided in the end cover assembly; and the stop mechanism is configured to lock rotation of the locating disc or unlock the rotation of the locating disc through the limiting member.
According to the above technical solution, when the dumbbell is lifted by the user, the limiting member can lock the locating disc and the plate selection mechanism. Consequently, the locating disc and the plate selection mechanism are not prone to rotation, and the weight plates suspended and gripped on the dumbbell do not fall off from the grab handle assembly easily, thereby preventing hurt to the user. Only when the grab handle assembly is placed on the base, the grab handle assembly can rotate, and the gear can be shifted, thereby being safe.
Optionally, stop grooves in one-to-one correspondence with the locating recesses are formed in the circumferential direction of the locating disc; and the stop mechanism includes a stop member slidably provided in the end cover assembly and cooperating with the stop groove in a clamping manner, and a stop spring configured to drive the stop member to always tend to be clamped into the stop groove.
According to the above technical solution, when the grab handle assembly of the dumbbell is taken up from the base, the stop member driven by the stop spring can be clamped into the stop groove of the locating disc again, and the stop member under an elasticity of the stop spring does not fall out from the stop groove easily, thereby being safe.
Optionally, the display mechanism further includes a locking assembly provided in the end cover assembly and cooperating with the locating recess; and the locking assembly is configured to drive the plate selection mechanism to always tend to rotate to one gear.
According to the above technical solution, when the gear of the dumbbell is shifted by the user, the plate selection mechanism driven by the locking assembly can be always shifted to one gear, and a condition in which only a half of the gear is shifted and the weight plate falls off from the grab handle assembly does not occur easily.
Optionally, the locking assembly includes a clamping member slidably provided in the end cover assembly and a locking spring configured to drive the clamping member to always tend to be clamped into the locating recess.
According to the above technical solution, the structure of the locking assembly is specifically disclosed. When the gear of the dumbbell is not shifted in place, and the clamping member is located between two adjacent locating recesses, the clamping member under an elasticity of the locking spring can drive the locating disc to restore the gear automatically, and the clamping member is automatically clamped at an adjacent gear. This reduces a probability that the dumbbell is clamped between two gears, and can further reduce a probability that the weight plate falls off to pose a danger to the user in a dumbbell lifting process because the gear is not shifted in place.
Optionally, the end cover assembly includes an external end cover fixedly provided at an end of the handle tube and an internal end cover rotatably provided on the handle tube; the plate selection mechanism is located between the internal end cover and the external end cover; the display mechanism is provided in the internal end cover; and the display opening penetrates into the internal end cover from an outside of the internal end cover.
According to the above technical solution, the display mechanism is provided in the internal end cover, and only one display opening directly facing the label is formed for a user to read, such that the overall structure of the dumbbell is compact, and the display mechanism in the internal end cover is not damaged easily.
Optionally, an anti-rotating beam is connected between the internal end cover and the external end cover; and an anti-rotating clamping groove configured for the anti-rotating beam to be clamped into is formed in each of the weight plates.
According to the above technical solution, after the weight plate is suspended and gripped on the grab handle assembly, the weight plate is limited by the anti-rotating beam, and the weight plate on the grab handle assembly is not prone to rotation. This reduces a probability that the weight plate rotates to fall off from the grab handle assembly when the dumbbell is used by the user, and improves safety of the dumbbell in use.
Optionally, the plate selection mechanism includes a plurality of fixing pieces; each of the fixing pieces is a centrosymmetric cam structure; a fixing groove configured for the fixing piece to be rotatably clamped is formed in each of the weight plates; and an access groove penetrating into the fixing groove and configured for the fixing piece to be vertically inserted into is further formed in the weight plate.
According to the above technical solution, the fixing piece is rotatably clamped onto the weight plate, such that the weight plate can be suspended and gripped on the grab handle assembly. Because of the symmetric structure of the fixing piece, the fixing piece can be clamped onto the weight plate clockwise or counterclockwise, thereby being convenient.
In conclusion, the present disclosure achieves at least one of the following beneficial technical effects.
1. According to the weight-visualized dumbbell, since the display mechanism is provided in the end cover assembly, the label can be protected by the end cover assembly, and the label is not damaged easily. Meanwhile, there is no need to additionally provide a protective cover on the end cover assembly for the display mechanism, thereby reducing a size of the internal end cover.
2. With the locking assembly, after the dumbbell is shifted to some gear, the handle tube is not prone to rotation. When the gear of the dumbbell is not shifted in place, the locking assembly can drive the dumbbell to restore the gear, and the dumbbell is shifted to an adjacent gear again. This reduces a probability that the weight plate falls off because the gear is not shifted in place, and improves safety of the dumbbell in use.
3. With the anti-rotating beam, the weight plate can be clamped into the anti-rotating beam after suspended and gripped on the grab handle assembly. When the dumbbell is used by the user, the weight plate is not prone to rotation on the grab handle assembly, thereby reducing a probability that the weight plate falls off from the grab handle assembly to hurt the user.
In the figures: 1: weight plate set, 11: weight plate, 2: grab handle assembly, 21: handle tube, 211: grip segment, 212: mounting segment, 22: end cover assembly, 221: internal end cover, 2211: display opening, 2212: slideway, 2213: rotating shaft, 2214: sliding groove, 222: external end cover, 2221: annular sliding groove, 223: anti-rotating beam, 2231: slider, 23: plate selection mechanism, 231: fixing piece, 2311: fixing groove, 2312: access groove, 2313: anti-rotating clamping groove, 24: display mechanism, 241: locating disc, 2411: locating recess, 2412: stop groove, 242: display disc, 2421: toothed disc portion, 24211: driven toothed portion, 2422: display portion, 24221: label, 243: locking assembly, 2431: clamping member, 2432: locking spring, 25: stop assembly, 251: stop member, 252: stop spring, 3: base, 31: placement groove, and 32: limiting member.
The present disclosure will be further described in detail below with reference to
An embodiment of the present disclosure provides a weight-visualized dumbbell.
Referring to
Referring to
The plate selection mechanism 23 is fixed on the mounting segment 212 in a sleeving manner, and located between the external end cover 222 and the internal end cover 221. The plate selection mechanism 23 includes fixing pieces 231 in one-to-one correspondence with the weight plates 11 and configured for the weight plates 11 to be mounted. A number of the fixing pieces 231 is the same as a number of the weight plates 11. Two ends of the handle tube 21 are respectively provided with five fixing pieces 231 and are symmetric, thereby realizing a weight balance.
Referring to
Adjacent fixing pieces 231 are misaligned, that is, the fixing piece has a misalignment angle with an axis of the handle tube 21 as a center. A difference between the length and the width of the fixing piece 231, the misalignment angle of the fixing piece 231 in a vertical state relative to a length direction, and a difference between the width of the fixing sheet 231 and the width of the access groove 2312 are associated, and satisfy (the length of the fixing piece 231—the width of the fixing piece 231)*sin θ≤(the width of the access groove 2312—the width of the fixing piece 231), θ being the misalignment angle of the fixing piece 231 in the vertical state relative to the length direction. The fixing piece 231 in a small inclination state can still completely slide into the fixing groove 2311 through the access groove 2312.
After the fixing piece 231 enters the fixing groove 2311 through the access groove 2312, the fixing piece 231 can be clamped into the fixing groove 2311 by rotating the fixing piece 231 for a certain angle. Meanwhile, due to the centrosymmetric fixing piece 231, the fixing piece 231 can be rotatably clamped, regardless of whether the fixing piece rotates clockwise or counterclockwise.
Referring to
After the fixing piece 231, the mounting segment 212 and the anti-rotating beam 223 are inserted into the weight plate 11, the weight plate 11 is fixed relative to the anti-rotating beam 223, and the fixing piece 231 and the mounting segment 212 can rotate relative to the weight plate 11. By this time, an angle of the fixing piece 231 can be adjusted by rotting the handle tube 21.
The plate selection mechanism 23 is provided with a plurality of gears that are driven by the handle tube 21 to rotate relative to the weight plate sets 1. When the plate selection mechanism 23 rotates to different gears, different numbers of weight plates 11 can be fixedly suspended and gripped. In the embodiment, according to the number of weight plates 11, the plate selection mechanism 23 is provided with ten gears. A first gear is an initial condition in which there is no weight plate 11 but only a weight of the grab handle assembly 2. At a second gear, there is one small weight plate 11. At a third gear, there is one big weight plate 11. At a fourth gear, there are one small weight plate 11 and one big weight plate 11. At a fifth gear, there are two big weight plates 11. At a sixth gear, there are one small weight plate 11 and two big weight plates 11. At a seventh gear, there are three big weight plates 11. At an eighth gear, there are one small weight plate 11 and three big weight plates 11. At a ninth gear, there are four big weight plates 11. At a tenth gear, there are one small weight plate 11 and four big weight plates 11.
Referring to
When the dumbbell is used by the user, the gear is shifted by rotating the grip segment 211, thereby changing the number of weight plates 11 on the grab handle assembly 2. The label 24221 can change with rotation of the grip segment 211. A value on the label 24221 can be observed by the user through the display opening 2211 to know the weight of the dumbbell at the present gear.
There are two locking assemblies 243 that are symmetrically provided at two sides of the internal end cover 221. The locking assembly 243 includes clamping member 2431 and locking spring 2432. The clamping member 2431 is slidably provided on the internal end cover 221 and can cooperate with the locating recess 2411 of the locating disc 241 by clamping. Slideway 2212 configured for the clamping member 2431 to slide is formed in the internal end cover 221. The locking spring 2432 is provided in the slideway 2212, and includes one end abutting against the clamping member 2431, and the other end abutting against the slideway 2212. The clamping member 2431 driven by the locking spring 2432 can be always clamped into the locating recess 2411. When the gear is shifted, the clamping member 2431 can move from one locating recess 2411 to the adjacent locating recess 2411.
With the locking assembly 243, when the dumbbell is shifted to some gear in use, the locating disc 241 clamped by the clamping member 2431 is not prone to rotation. Meanwhile, when the gear of the dumbbell is not shifted in place, and the clamping member 2431 is located between two adjacent locating recesses 2411, the clamping member 2431 under an elasticity of the locking spring 2432 can drive the locating disc 241 to restore the gear, the clamping member 2431 is clamped at the gear adjacent to the locating disc 241, and the locating disc 241 is locked again. This reduces a probability that the weight plate 11 falls off to hurt the user because the gear of the dumbbell is not shifted in place in use of the dumbbell.
Referring to
Referring to
With reference to
The above are preferred embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present disclosure shall fall within the protection scope of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202322549894.7 | Sep 2023 | CN | national |
