CN217311779U

CN217311779U - Dumbbell

Info

Publication number: CN217311779U
Application number: CN202220736200.3U
Authority: CN
Inventors: 邱祥锋
Original assignee: Shenzhen Calorie Sports Technology Co ltd
Current assignee: Shenzhen Calorie Sports Technology Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-08-30
Anticipated expiration: 2032-03-31

Abstract

The present disclosure discloses a dumbbell, comprising: the handheld assembly comprises two brackets; two ends of the bearing shaft are respectively and rotatably connected with the two brackets and are constructed as bearing brackets; the two sleeves are respectively sleeved at two ends of the bearing shaft and are configured to move along the extension direction of the bearing shaft under the rotation of the bearing shaft; the counterweight plate is provided with a through hole; the sleeve is configured to move along the extension direction of the bearing shaft into the through hole of the weight plate or away from the through hole of the weight plate. This disclosed dumbbell, through the mode of bearing axle among the rotatory handheld subassembly, make the sleeve pipe that is located bearing epaxial slide on bearing axle, the sleeve pipe is in the in-process that slides and the counter weight piece cooperation is in the same place to make the user when mentioning handheld subassembly, can mention the counter weight piece that cooperates together with the sleeve pipe. The number of the weight plates matched with the sleeve is controlled by rotating the bearing shaft at different angles, so that the effect of adjusting the weight of the dumbbell is achieved.

Description

Dumbbell

Technical Field

The disclosure relates to the field of sports equipment, in particular to a dumbbell.

Background

Dumbbells are widely used as exercise equipment, such as chest extension training, biceps training, deltoid training, and the like.

The existing dumbbell is mainly a dumbbell with fixed weight, and when the dumbbell is used, a set of dumbbells with different weight specifications needs to be prepared to meet the requirements of trainers.

SUMMERY OF THE UTILITY MODEL

The utility model provides a dumbbell in order to solve the problem that exists among the prior art.

According to a first aspect of the present disclosure, there is provided a dumbbell comprising a hand held assembly, the hand held assembly comprising:

the number of the brackets is two;

a bearing shaft, both ends of which are respectively rotatably connected with the two brackets and are configured to bear the brackets;

two sleeves which are respectively sleeved at two ends of the bearing shaft and are configured to move along the extension direction of the bearing shaft under the rotation of the bearing shaft;

the counterweight plate is provided with a through hole; the sleeve is configured to move along the extension direction of the bearing shaft into the through hole of the weight plate or away from the through hole of the weight plate.

In one embodiment of the present disclosure, a thread groove is formed on the bearing shaft, and a first protrusion matched with the thread groove is arranged in the sleeve;

in the alternative, the first and second sets of the first and second sets of the first and second sets of the first and second sets of the first and second sets of the first and second sets of the second,

the inner wall of the sleeve is provided with a thread groove, and the bearing shaft is provided with a first bulge matched with the thread groove.

In one embodiment of the present disclosure, a guide mechanism is disposed between the bracket and the sleeve, and the guide mechanism is configured to guide the sleeve to move along the extension direction of the bearing shaft.

In one embodiment of the present disclosure, the bracket includes a front end cover and a rear end cover which are oppositely arranged, and a connecting frame which connects the front end cover and the rear end cover; an open slot is defined between the front end cover and the rear end cover; the open slot is configured to receive the weight plate.

In one embodiment of the present disclosure, the sleeve is moved into the open groove along an extension direction of the bearing shaft and is configured to penetrate into the through hole of at least one of the weight plates.

In one embodiment of the present disclosure, the connecting sleeve further includes a connecting sleeve, the bearing shaft and the sleeve are located in an inner cavity of the connecting sleeve, and the connecting sleeve is configured to be connected with the bearing shaft and is configured to drive the bearing shaft to rotate.

In one embodiment of the disclosure, the middle position of the bearing shaft is in transmission fit with the connecting sleeve.

In one embodiment of the disclosure, the gear shifting device further comprises a gear shifting bracket which rotates relative to the front end cover, and the connecting sleeve extends from the middle position of the bearing shaft to the position of the front end cover and is in transmission connection with the gear shifting bracket;

a gear mechanism is arranged between the gear shifting support and the end face of the front end cover, and comprises at least one matching part pre-pressed between the gear shifting support and the front end cover and a gear hole arranged on the gear shifting support or the front end cover; when the gear shifting support rotates to a position where the matching part corresponds to the gear hole, the matching part is matched with the gear hole under the action of elastic force.

In one embodiment of the present disclosure, a scale cover is further disposed on the front end cover, and the connecting sleeve is configured to be in transmission connection with the scale cover; the shift bracket is disposed on a side of the scale cover facing the front end cover, and is configured to be squeezed between the scale cover and the front end cover.

In one embodiment of the present disclosure, further comprising a base configured for carrying the hand held component; the handheld subassembly is still including setting up the self-locking mechanism on the protecgulum, self-locking mechanism include the pre-compaction in the protecgulum with fixture block between the base, handheld subassembly be configured into with when the base breaks away from, the fixture block move under the effect of elastic force extremely with the draw-in groove cooperation that sets up on the accent support.

In one embodiment of the present disclosure, the plurality of clamping grooves are distributed in a circumferential direction of the gear shifting bracket; when the gear shifting support rotates to a position where the matching part corresponds to the gear hole, the clamping groove rotates to a position corresponding to the clamping block.

In one embodiment of the disclosure, the dumbbell testing device further comprises a detection plate located on the outer side of the bracket, at least one hardware module used for representing the current weight of the dumbbell is arranged on the detection plate, and the bearing shaft is configured to drive the detection plate to rotate relative to the bracket so as to rotate at least one hardware module to a preset position.

In one embodiment of the present disclosure, a mounting slot is provided on the bracket, the mounting slot being configured to interface with an information reading module; when the hardware module rotates to the position corresponding to the information reading module, the information reading module is configured to read the information of the hardware module.

In one embodiment of the present disclosure, the hardware module is an RFID tag.

In one embodiment of the present disclosure, the information reading module is configured to be detachably coupled with the mounting groove.

The dumbbell disclosed comprises a handheld assembly, wherein a sleeve positioned on a bearing shaft slides on the bearing shaft in a mode of rotating the bearing shaft in the handheld assembly, and the sleeve is matched with a weight plate in the sliding process, so that a user can lift the weight plate matched with the sleeve when lifting the handheld assembly. The sliding distance of the sleeve on the bearing shaft is controlled by rotating different angles of the bearing shaft, so that the number of the weight plates matched with the sleeve is controlled, and the effect of adjusting the weight of the dumbbell is achieved.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic structural view of a dumbbell of the present disclosure;

FIG. 2 is a cross-sectional view of a dumbbell of the present disclosure;

FIG. 3 is an expanded schematic view of a dumbbell of the present disclosure;

FIG. 4 is a schematic view of the structure of the load bearing shaft of the dumbbell of the present disclosure;

FIG. 5 is a schematic view of the structure of the sleeve of the dumbbell of the present disclosure;

FIG. 6 is a schematic structural view of a front end cap of the dumbbell of the present disclosure;

FIG. 7 is a schematic structural view of a shift bracket of the dumbbell of the present disclosure;

FIG. 8 is a front view of the shift bracket of the dumbbell of the present disclosure;

FIG. 9 is a schematic structural view of a weight plate of the dumbbell of the present disclosure;

FIG. 10 is a schematic view of the structure of the connecting frame of the dumbbell of the present disclosure;

fig. 11 is a schematic structural diagram of a detection board according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of a fixed docking plate according to an embodiment of the present disclosure;

fig. 13 is a schematic structural diagram of a relative positional relationship between the detection board, the fixed docking board and the information reading module according to an embodiment of the present disclosure;

fig. 14 is a schematic structural diagram of a dumbbell according to an embodiment of the present disclosure.

Reference numerals:

1. the base, 11, the jacking portion, 12, the placement groove, 13, the isolation strip, 21, the bearing shaft, 211, the second limit portion, 22, the sleeve, 221, the first limit portion, 222, the first protrusion, 23, the front end cover, 231, the second protrusion, 24, the rear end cover, 25, the connecting frame, 251, the first limit groove, 261, the connecting sleeve, 2611, the second limit groove, 2612, the third limit portion, 262, the scale cover, 2621, the third limit groove, 263, the gear shifting bracket, 2631, the gear hole, 2632, the flange, 2633, the clamping groove, 27, the first elastic member, 28, the rubber sleeve, 3, the counterweight sheet, 31, the opening, 32, the strip-shaped opening, 33, the circular opening, 4, the self-locking mechanism, 41, the second elastic member, 42, the clamping block, 421, the reserved opening, 5, the detection plate, 51, the hardware module, 52, the fixed docking plate, 521, the circuit interface element, 6, the reading module, 61, the identification element, 62, the control unit, 63. data transmission module 7, mounting groove.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

The weight of the existing dumbbell is usually fixed, that is, a user purchases a plurality of dumbbells with different weights, and then the dumbbells are frequently replaced by himself according to the self-training requirement in the training process. Obviously, the user not only needs to spend a large amount of money to purchase the dumbbells, but also needs enough space to place the dumbbells, namely, the dumbbells with the existing structure cause the problems of high training cost and difficult storage for the user.

To this end, the present disclosure provides a dumbbell, which includes a hand-held component including a bracket, a bearing shaft, a sleeve, and a weight plate. The number of the brackets is two, two ends of the bearing shaft are respectively and rotatably connected with the two brackets, and the bearing shaft is constructed as a bearing bracket; the number of the sleeves is two, the two sleeves are respectively sleeved at two ends of the bearing shaft and are configured to move along the extension direction of the bearing shaft under the rotation of the bearing shaft; the weight plate is provided with a through hole, and the sleeve is further configured to move along the extension direction of the bearing shaft into the through hole of the weight plate or away from the through hole of the weight plate.

In the training process, when the user needs to increase the weight of the dumbbell, the bearing shaft is driven to rotate so as to drive the sleeve to move along the extension direction of the bearing shaft into the through hole extending into the spare weight plate, and the spare weight plate is arranged on the handheld assembly. On the contrary, when the user needs to reduce the weight of the dumbbell, the bearing shaft is driven to rotate reversely until the sleeve is separated from the through hole of the weight plate, so that the weight plate is detached from the bearing shaft to be used as a spare weight plate.

It can be seen that the dumbbell of this disclosure installs spare weight plates on the hand held assembly through the rotatable hand held assembly to increase the weight of the dumbbell, or detaches the weight plates on the hand held assembly to reduce the weight of the dumbbell, that is, the hand held assembly is configured for connecting different numbers of weight plates to adjust the weight of the whole dumbbell.

Therefore, a user only needs to purchase one set of hand-held components and then matches with the weight plates with different quantities and/or weights, the dumbbells with different weights can be replaced according to the training requirements, and the purchase cost and the volume of the weight plates are smaller than those of the whole dumbbell machine. Therefore, a user can purchase one handheld component and a plurality of weight plates matched with the handheld component with relatively less funds, different training weight requirements can be met, and the set of dumbbell can be placed in a smaller space, so that the purchase cost and the storage difficulty of the dumbbell are reduced.

In addition, the power for driving the two sleeves to stretch from the counterweight plate is not directly applied to the sleeves but applied to the bearing shaft, the bearing shaft and the two sleeves are matched to form a screw rod nut mechanism, the bearing shaft bears the function of a screw rod, the sleeves bear the function of a nut block, and the sleeves linearly move along the extension direction of the bearing shaft along a limiting structure on the bracket when the screw rod rotates due to the matching of the two sleeves and the bracket, so that the external force applied to the bearing shaft by a user can be transmitted to the sleeves in a balanced manner, and the moving state of the two sleeves is stable.

Of course, the sleeve pipe can be driven to rotate around the bearing shaft and simultaneously linearly move along the extension direction of the bearing shaft, and the purpose that the sleeve pipe stretches out and draws back from the mounting hole of the counterweight plate can also be achieved. However, when the structure is adopted, the sleeve needs to rotate in the mounting hole of the weight plate relative to the weight plate before reaching the preset position, so that friction fit can be formed between the matching surfaces of the sleeve and the weight plate, and in order to avoid overlarge friction force between the matching surfaces of the sleeve and the weight plate, the machining precision of the hole wall of the mounting hole of the weight plate and the peripheral wall of the sleeve is required to be higher, so that the manufacturing cost of the whole dumbbell is higher.

However, the sleeve of the present disclosure only moves linearly along the extension direction of the bearing shaft, and the processing precision of the hole wall of the mounting hole of the weight plate and the peripheral wall of the sleeve does not have a great influence on the movement of the sleeve, so that the manufacturing cost of the whole dumbbell structure can be reduced to some extent.

This dumbbell of disclosure slides on the bearing axle through the mode of bearing axle among the rotatory handheld subassembly, the messenger lies in the epaxial sleeve pipe of bearing, and the sleeve pipe is in the in-process that slides and the counter weight piece cooperation on the base is in the same place to make the user when mentioning handheld subassembly, can mention the counter weight piece that cooperates together with the sleeve pipe. The sliding distance of the sleeve on the bearing shaft is controlled by rotating different angles of the bearing shaft, so that the number of the weight plates matched with the sleeve is controlled, and the effect of adjusting the weight of the dumbbell is achieved.

For the sake of understanding, the detailed structure and the operation principle of the present disclosure will be described in detail with reference to fig. 1 to 10 of the drawings in conjunction with one embodiment.

In one embodiment of the present disclosure, as shown in fig. 1 and 2, the dumbbell includes a hand held assembly. The hand held assembly is used to fit together different numbers of weight plates 3 to adjust the weight of the dumbbell.

In detail, the hand-held assembly comprises a bearing shaft 21, a bracket and two sleeves 22 at both ends of the bearing shaft 21.

Wherein the number of the brackets is two, and the two brackets are respectively connected to both ends of the bearing shaft 21, and the bearing shaft 21 is configured to bear the weight of the two brackets, that is, the brackets are lifted together with the bearing shaft 21 under an external force.

In more detail, in conjunction with fig. 1 to 3, in the present embodiment, each of the brackets of the present disclosure includes a front end cover 23, a rear end cover 24, and a connecting frame 25 disposed between the front end cover 23 and the rear end cover 24. And, the front end cover 23, the rear end cover 24 enclose an open slot therebetween, which is configured for accommodating the weight plate 3.

Each support comprises at least one screw, and the screw penetrates through the rear end cover 24 and the connecting frame 25 in sequence and is in threaded connection with the front end cover so as to fixedly connect the three into a whole. That is, the support is formed by assembling three components in a detachable mode in a modularized mode, and when one component is damaged, the component can be replaced at will. Of course, the bracket of the present disclosure may also be an integrally formed part, according to another embodiment of the present disclosure.

With continued reference to fig. 2, the front end cover 23, the connecting frame 25 and the rear end cover 24 are all provided with central holes, and the central holes of the three components are coaxially arranged, and one end of the bearing shaft 21 sequentially passes through the central holes of the front end cover 23 and the connecting frame 25, and is rotatably connected to the rear end cover 24 through a rotating bearing located on the central hole of the rear end cover 24. Thus, the bearing shaft 21 can rotate relative to the bracket when subjected to an external force.

It should be noted that the terms "front and back" as used herein in describing the stand are set relative to the user's hand-held portion in the dumbbell use state, wherein the side close to the user's hand is front and the side away from the user's hand is back.

So, when installing counterweight plate 3, the user can utilize the guide of open slot to insert counterweight plate 3 appointed position fast, has avoided the user to look for the butt joint position by oneself and has caused the problem that weight adjustment process time is long, the degree of difficulty is big.

With continued reference to fig. 6, in this embodiment, the front end cap 23 and the rear end cap 24 of the present disclosure are generally circular.

In detail, the rear end cover 24 is also circular, and two ends of the bearing shaft 21 are respectively rotatably connected to the rear end cover 24, and the rotatable connection may be performed by a bearing, or other means known to those skilled in the art for rotating connection, and will not be described in detail herein. A projection for connection is also provided above the rear end cap 24.

The upper part of the connecting frame 25 is also provided with a bulge for connection, the bulge can be fixedly connected with the bulges on the front end cover 23 and the rear end cover 24 through bolts, besides the bulge can be provided with bolts for connection, the bolts can be arranged between the front end cover 23 and the rear end cover 24 to further enhance the connection stability.

The middle part of the connecting frame 25 is provided with a round hole for the bearing shaft 21 and the sleeve 22 to pass through, the two sides of the connecting frame 25 are also provided with isolation grooves, and after the weight plates 3 enter the open grooves, the isolation grooves are used for limiting the axial movement of the weight plates 3 in the process of weight adjustment of the dumbbell, so that the stability of the weight plates 3 in the process of adjustment is maintained. Meanwhile, the protrusions for connection on the connecting frame 25 can also be matched with the openings on the weight plates 3 together, so that the purpose of limiting the rotation of the weight plates 3 is achieved, and the stability of the weight plates 3 in the dumbbell weight adjusting process is further improved.

With continued reference to fig. 2, in the present embodiment, the dumbbell of the present disclosure includes two sleeves 22, and the two sleeves 22 are respectively sleeved on both ends of the bearing shaft 21 and configured to move along the extending direction of the bearing shaft 21 under the rotation of the bearing shaft 21.

In detail, in the present embodiment, the dumbbell of the present disclosure includes the connection sleeve 261, the load bearing shaft 21 and the two sleeves 22 are located in the inner cavity of the connection sleeve 261, and the connection sleeve 261 is configured to be connected with the load bearing shaft 21 and configured to rotate the load bearing shaft 21.

With continued reference to fig. 2, the middle connection sleeve 261 of the present disclosure includes a left sub-connection sleeve and a right sub-connection sleeve, which are connected to the bearing shaft 21 after being left-right spliced, so as to limit the relative rotation of the bearing shaft 21 with respect to the connection sleeve 261, that is, the connection sleeve 261 can rotate to drive the bearing shaft 21 to rotate synchronously therewith, and when the linear displacement of both the connection sleeve 261 and the bearing shaft 21 along the axial direction is not limited. In detail, the left sub-connecting sleeve and the right sub-connecting sleeve can be connected with the bearing shaft 21 in a key connection manner. The connecting sleeve 261 is cylindrical and hollow as a whole.

When the dumbbell is assembled, the left sub-connecting sleeve and the right sub-connecting sleeve are firstly sleeved on the bearing shaft 21 from the two end parts of the bearing shaft 21 and are connected with the bearing shaft 21 in a key connection mode, then the two sleeves 22 are sleeved on the bearing shaft 21 from the two end parts of the bearing shaft 21, and the two sleeves 22 move along the extension direction of the bearing shaft 21 when the bearing shaft 21 rotates.

Thus, the connecting sleeve 261 drives the bearing shaft 21 to rotate, so that the holding area becomes larger, and the dumbbell weight can be more conveniently adjusted.

As shown in fig. 2, 3 and 4, in the embodiment, the middle portion of the bearing shaft 21 of the present disclosure is in driving fit with the connecting sleeve 261 through the second limiting portion 211 and the second limiting groove 2611. A second limiting groove 2611 is arranged at one end of the connecting sleeve 261, a second limiting part 211 matched with the second limiting groove 2611 is arranged at the middle part of the bearing shaft 21, the second limiting part 211 can be in a cross-section waist-shaped structure, and the second limiting groove 2611 is matched with the second limiting part 211 in shape.

Of course, the shapes of the second retaining groove 2611 and the second retaining portion 211 may also be other suitable shapes, such as a rectangle, a triangle, etc., which is not limited in this disclosure. When the connecting sleeve 261 is rotated, the second limiting portion 211 is engaged with the second limiting groove 2611, so that the connecting sleeve 261 can drive the bearing shaft 21 to rotate.

In detail, referring to fig. 4 and 5, in the present embodiment, the handheld assembly of the present disclosure further includes a rubber sleeve 28, and the rubber sleeve 28 is fixedly sleeved on the connection sleeve 261 and configured to be held by a user.

Therefore, when a user needs to drive the bearing shaft 21 to rotate, the user holds and rotates the rubber sleeve 28, and the connecting sleeve 261 rotates synchronously with the rubber sleeve 28. When a user applies a torsion force to the connecting sleeve 261 through the rubber sleeve 28, the friction force at the matching position of the rubber sleeve 28 and the hand is large, the connecting sleeve 261 can be driven to rotate by applying a small torsion force to the user, the user is not easy to slip when rotating the connecting sleeve 261, and the process of adjusting the weight of the dumbbell is more stable. Of course, the rubber sleeve 28 may be other components known to those skilled in the art to increase friction, such as grooves or protrusions on the outer surface of the connecting sleeve 261, which is not limited by the present disclosure.

Of course, according to one embodiment of the present disclosure, the handheld assembly of the present disclosure may omit the rubber sleeve 28, and the user directly applies a torque force to the connection sleeve 261 to drive the bearing shaft 21 to rotate.

In detail, as shown in fig. 4 and 5, in the present embodiment, the dumbbell of the present disclosure is provided with screw grooves at both ends of the bearing shaft 21 where the sleeve 22 is provided, and a first protrusion 222 that is fitted with the screw grooves on the bearing shaft 21 is provided at one end of the sleeve 22. Referring to fig. 5, the sleeve 22 is generally tubular, the first protrusion 222 is disposed inside one end of the sleeve 22, and the shape of the first protrusion 222 may be hemispherical, but the shape of the first protrusion 222 may also be other shapes known to those skilled in the art to be capable of matching with a thread groove, and the disclosure is not limited thereto.

In order that the sleeve 22 does not rotate along with the bearing shaft 21 during the movement of the sleeve 22 on the bearing shaft 21, in one embodiment of the present disclosure, a guide mechanism is provided between the bracket and the sleeve 22 for guiding the sleeve 22 to move along the extension direction of the bearing shaft 21 when the bearing shaft 21 rotates, rather than rotating along with the bearing shaft 21.

Specifically, referring to fig. 5 and 10, the guiding mechanism includes a first limiting groove 251 and a first limiting portion 221. The first limit groove 251 is arranged in the circular hole in the middle of the connecting frame 25, the first limit part 221 is arranged at one end of the sleeve 22, the shapes of the first limit part 221 and the first limit groove 251 can be matched semi-circular shapes, abrasion caused by relative sliding of the first limit part 221 and the first limit groove 251 is reduced, and when the first limit part 221 and the first limit groove 251 are clamped together, the sleeve 22 can only move along the extending direction of the bearing shaft 21 and cannot rotate along with the bearing shaft 21. Of course, the shapes of the first limiting groove 251 and the first limiting portion 221 may also be other suitable shapes, such as a rectangle, a triangle, etc., which is not limited in this disclosure.

When the bearing shaft 21 starts to rotate, the threads on the bearing shaft 21 also rotate, the first protrusions 222 are matched in the threads, but due to the limitation of the first limiting part 221 on the sleeve 22 and the first limiting groove 251 on the connecting frame 25, the sleeve 22 can only slide on the bearing shaft 21 under the driving of the threads, and the sleeve 22 can be matched with different numbers of weight plates 3 by controlling the moving distance of the sleeve 22, so that the effect of adjusting the weight of the dumbbell is achieved. When the first protrusion 222 is located on the bearing shaft 21 and the thread is located inside the sleeve 22, the movement principle is the same as the above, and will not be described in detail. Of course, the purpose of the bearing shaft 21 driving the sleeve 22 to slide can also be achieved by providing a thread inside the sleeve 22, which is matched with the thread on the bearing shaft 21, and the disclosure is not limited thereto.

It should be noted that the thread groove is specifically a left-handed thread groove or a right-handed thread groove on the outer peripheral wall of the bearing shaft 21, and when the user drives the bearing shaft 21 to rotate through the connection sleeve 261, due to the limitation of the guiding mechanism, the sleeve 22 can only move along the thread groove relative to the bearing shaft 21 in the axial direction, and cannot rotate along with the bearing shaft 21.

According to an embodiment of the present disclosure, the thread groove and the first protrusion may be reversed, that is, the thread groove may be disposed inside the sleeve 22, and the first protrusion 222 may be disposed on the bearing shaft 21.

Similarly, the guide mechanism including the first position-limiting groove and the first position-limiting portion may also be disposed in the opposite direction, that is, the first position-limiting groove is disposed on the sleeve 22, and correspondingly, the first position-limiting portion is disposed on the connecting frame 25.

According to another embodiment of the present disclosure, the sleeve 22 and the bearing shaft 21 of the present disclosure may also be connected by matching internal threads and external threads, and since the guiding mechanism limits the rotation of the sleeve 22 relative to the bearing shaft 21, when the bearing shaft 21 rotates, the sleeve 22 can only move linearly along the extending direction of the bearing shaft 21, so that the sleeve 22 extends from the connecting sleeve 261 or retracts into the connecting sleeve 261.

Based on the structure, the working principle of the handheld assembly is as follows: when a user holds the rubber sleeve by hand and applies a torque force along the first direction, the connecting sleeve 261 drives the bearing shaft 21 to rotate synchronously, and the two sleeves 22 move oppositely along the extending direction of the bearing shaft 21 to gradually extend out of the connecting sleeve 261 to be inserted into the through holes of the weight plates 3 respectively.

On the contrary, when the user holds the rubber sleeve and applies a torque force along the second direction, the connection sleeve 261 drives the bearing shaft 21 to rotate synchronously, and the two sleeves 22 move towards each other along the extending direction of the bearing shaft 21 to gradually leave the through hole of the weight plate 3 and extend into the connection sleeve 261. Wherein, one of the first direction and the second direction is clockwise, and the other is anticlockwise.

With continued reference to fig. 2 and 9, in the present embodiment, the weight plate 3 of the present disclosure is embodied in a disc-shaped structure, the weight plate 3 has a notch extending along a radial direction thereof, and the weight plate is configured such that when the weight plate is snapped into the holder, the notch is engaged with the connecting frame 25, a through hole for the sleeve 22 to extend into or leave is formed in a middle portion of the notch, taking the orientation in fig. 9 as an example, the notch includes an upper flared opening 31 and a lower strip-shaped opening 32, a through hole 33 for the sleeve 22 to extend into or leave is formed in a region of the strip-shaped opening 32, a diameter of the through hole 33 is larger than a groove width of the strip-shaped opening 32, an outer diameter of the sleeve 22 is also larger than the groove width of the strip-shaped opening 32, and an outer diameter of the bearing shaft 21 is smaller than the groove width of the strip-shaped opening 32.

In this way, when the sleeve 22 is inserted into the through hole 33, the weight plate 3 and the sleeve 22 form a unitary structure, i.e. the weight plate 3 is mounted on the hand held unit, and when the user lifts the hand held unit, the weight plate 3 is also lifted together.

Conversely, when the user rotates the bearing shaft 21 to move the sleeve 22 away from the through hole 33 of the weight plate 3, and the user lifts the handheld assembly, the connecting frame 25 moves relative to the weight plate 3 along the gap direction of the weight plate 3 to move away from the constraint formed on the weight plate 3, and the weight plate 3 is detached.

When a user installs the weight plate 3 on the handheld assembly, the weight plate 3 is clamped into the open slot formed between the front end cover 23 and the rear end cover 24, the connecting frame 25 is clamped into the gap of the weight plate, the bearing shaft 21 is inserted into the through hole 33, and at this time, the user rotates the bearing shaft 21 until the sleeve 22 extends into the through hole 33 of the weight plate 3 to connect the weight plate 3 to the handheld assembly. The weight plate 3 can be removed by rotating the bearing shaft 21 reversely.

The counterweight plate 3 is provided with a notch to form a guiding and positioning function, so that a user can install the counterweight plate 3 to the designated position of the handheld assembly quickly and accurately along the notch, and the dismounting and mounting process of the counterweight plate 3 is simple and quick.

So far, the hand-held assembly can adjust the weight of dumbbell through the dismouting different quantity of weight piece 3. However, how the user controls the rotation angle of the bearing shaft 21 so that the number of weight plates 3 attached to or detached from the hand held unit is just the dumbbell weight that the user wants to add.

To this end, with continued reference to fig. 2, 6-8, in this embodiment, the handheld module of the present disclosure further includes a shift bracket 263, the shift bracket 263 rotates relative to the front cover 23, and the connecting sleeve 261 extends from a middle position of the bearing shaft 21 to a position of the front cover 23 and is in transmission connection with the shift bracket 263.

In detail, the middle of the gear shifting bracket 263 is provided with a third limiting groove 2621, and the connecting sleeve 261 extends into the third limiting groove 2621 and drives the gear shifting bracket 263 to rotate synchronously under the action of external force. The contour line of the third limiting groove 2621 is enclosed by the circular arc line segment and the straight-line segment to form a model, correspondingly, the contour line of the peripheral wall on the connecting sleeve 261, which is matched with the third limiting groove 2621, also encloses the third limiting part 2612 of the model by the circular arc line segment and the straight-line segment, so that the gear-shifting support 263 and the connecting sleeve 261 can synchronously rotate, and the detachable connection relationship between the gear-shifting support 263 and the connecting sleeve 261 can be realized, so that the damaged parts can be maintained or replaced.

In other words, as shown in fig. 7, the connecting sleeve 261 and the shift bracket 263 are connected together by the third limiting portion and the third limiting groove. A third limiting groove 2621 is disposed in the middle of the gear shifting bracket 263, and a third limiting portion 2612 is disposed at one end of the connecting sleeve 261, which is matched with the gear shifting bracket 263. The third retaining portion 2612 and the third retaining groove 2621 may be formed by removing an arc from one side of a circle, and certainly, the third retaining portion 2612 and the third retaining groove 2621 may also be formed by a rectangle, a triangle, and the like. When the connecting sleeve 261 starts to rotate, the third limiting portion 2612 and the third limiting groove 2621 are clamped together, so that the connecting sleeve 261 can drive the gear shifting bracket 263 to rotate.

Further, the dumbbell of this disclosure is provided with a shift position mechanism before the shift support 263 and the front end cap 23, and the shift position mechanism includes at least one fitting portion pre-pressed between the shift support 263 and the front end cap 23, and a shift position hole 2631 provided on the shift support 263 or the front end cap 23.

In detail, referring to fig. 6 and 7, in the present embodiment, at least one of the matching portions includes a first elastic member 27 and a second protrusion 231, the first elastic member 27 may be an elastic member such as a spring, etc., the second protrusion 231 may be a steel ball, and the second protrusion 231 is connected in the front end cover 23 through the first elastic member 27. The shift position hole 2631 is a circular recess formed on one end surface of the shift lever support 263.

When a user drives the shift support 263 to rotate relative to the front end cover 23 through the connection sleeve 261 to a position where the shift hole 2631 corresponds to the second protrusion 231, the second protrusion 231 is clamped into the shift hole 2631 under the elastic force of the first elastic member 27, in the process, the user can provide a slight click sound, and meanwhile, the user can feel a slight impact force generated when the second protrusion 231 is clamped into the shift hole 2631, which indicates that one weight piece 3 is completely connected to or separated from the handheld component, so that the user can obtain an obvious prompt message, and the use experience of the user is improved.

That is, the shift support 263 rotates along with the bearing shaft 21, and when the shift support 263 rotates to a position corresponding to the shift hole 2631, which may be a position reached after the shift support 263 rotates along with the bearing shaft 21 by a fixed angle, the bearing shaft 21 may move the sleeve 22 on the bearing shaft 21 by a fixed distance by rotating the fixed angle, so that the sleeve 22 may engage with a predetermined number of weight plates 3.

For example, when the bearing shaft 21 rotates one hundred eighty degrees, the second protrusion 231 is positioned corresponding to the shift position hole 2631, so that the second protrusion 231 is engaged with the shift position hole 2631, and at this time, the sleeve 22 slides a fixed distance to be engaged with one weight plate 3, so that the dumbbell has a fixed weight. After the second protrusions 231 are matched with the gear holes 2631, a certain damping effect is achieved, so that a user can continuously adjust the weight of the dumbbell by using larger force, and the user is reminded that the dumbbell is added with fixed weight.

Obviously, in the present embodiment, a prompt signal corresponding to the number of the weight plates 3 to be detached can be provided to the user through the shift mechanism. However, when the usage environment of the dumbbell is noisy, the prompt tone or the impact force of the gear mechanism is not easy to be sensed by the user or is not accurate enough due to the influence of the external environment.

For this reason, referring to fig. 1 and 2, in the present embodiment, a scale cover 262 is further disposed on the front end cover 23, a scale related to the weight of the dumbbell is disposed on the scale cover 262, so that a user can intuitively obtain the current weight of the dumbbell, and a shift bracket 263 is disposed on a side of the scale cover 262 facing the front end cover 23 and configured to be pressed between the front end cover 23 and the scale cover 262.

The scale cover 262 can rotate relative to the front cover 23, and the scale cover 262 can be in transmission connection with the connecting sleeve 261, so that the connecting sleeve 261 can drive the gear shifting support 263, the scale cover 262 and the bearing shaft 21 to synchronously rotate.

The scale cover 262 is matched with one end of the connecting sleeve 261 far away from the second limiting groove 2611, so that the connecting sleeve 261 can drive the scale cover 262 and the bearing shaft 21 to synchronously rotate. Specifically, referring to fig. 3 and 4, the scale cover 262 is circular, a central hole is formed in the central position of the scale cover 262, a flange is formed by extending the edge of the central hole along the extending direction of the bearing shaft 21, the scale cover 262 is sleeved on the connecting sleeve 261 through the central hole, the flange is tightly pressed between the connecting sleeve 261 and the gear shifting support 261, and the shape of the flange is matched with the limiting hole of the gear shifting support 261, that is, the arc line segment and the straight line segment of the contour line of the flange are formed in a surrounding manner, so that the gear shifting support 261 and the scale cover 262 rotate synchronously with the connecting sleeve 261.

Thus, when the connecting sleeve 261 is rotated, the third limiting portion 2612 is engaged with the central hole of the scale cover 262, so that the connecting sleeve 261 can drive the scale cover 262 to rotate. The connecting sleeve 261 drives the bearing shaft 21 and the scale cover 262 to rotate synchronously, the number of rotating turns of the bearing shaft 21 can be associated with the number of rotating turns of the scale cover 262, when the bearing shaft 21 rotates a specific angle, the sleeve 22 is clamped with a certain number of weight plates 3, the scale cover 262 can also rotate the same angle with the bearing shaft 21, the weight of the dumbbell is added by the weight plates 3 with a certain number, the weight can be displayed through the scale on the scale cover 262, and a user can know the actual weight of the dumbbell more intuitively according to the weight scale on the scale cover 262.

For example, when the user rotates the connecting sleeve 261 to drive the bearing shaft 21 to rotate, the scale cover 262 and the shift bracket 263 also rotate synchronously, after the bearing shaft 21 rotates a certain angle, the sleeve 22 is matched with a certain number of weight plates 3, the scale cover 262 and the shift bracket 263 also rotate the same angle, at this time, the scale cover 262 displays the weight of the dumbbell, after the groove on the shift bracket 263 rotates a certain angle, the position of the second protrusion 231 on the front end cover 23 corresponds to that of the groove, and the second protrusion 231 is pushed into the groove under the action of the first elastic element 27 to prompt the user that the dumbbell has increased the fixed weight. For example, after the bearing shaft 21 rotates one hundred eighty degrees, the sleeve 22 is engaged with one weight plate 3, so that the weight of the dumbbell increases by five kilograms, the scale on the scale cover 262 increases by five kilograms, and the second protrusion 231 generates a damping effect when the first elastic member 27 is pushed into the shift hole 2631, thereby indicating to the user that the weight of the dumbbell has increased by five kilograms.

With continued reference to fig. 1 and fig. 2, in this embodiment, the dumbbell of this disclosure further includes a base 1 and a self-locking mechanism 4, the base 1 is used for holding the weight plates 3, the handheld assembly, and the like, and the handheld assembly is used for being matched with different weight plates 3 on the base 1, so as to realize the weight conversion of the dumbbell. After the user finishes the regulation of dumbbell weight, in order to guarantee the stability of bearing axle 21 at the in-process that uses, make it can not take place to rotate, self-locking mechanism 4 can be when handheld subassembly leaves base 1, and the security and the stability of user in the use dumbbell process are guaranteed in the rotation of restriction bearing axle 21.

The front cover 23 includes a bearing surface, and a side edge extending along the axial direction of the front cover 23 is disposed at the edge of the bearing surface, so that a mounting groove is formed between the bearing surface and the side edge for mounting components of the hand-held assembly. And reinforcing ribs can be arranged between the bearing surface and the side edges, so that the bearing surface and the side edges are connected more stably. And a mounting groove is further arranged below the front end cover 23 and used for mounting the self-locking mechanism 4. Below the front cover 23, there is provided a protrusion cooperating with the base 1, which protrusion prevents the holder from rotating together with the bearing shaft 21 when the hand-held assembly is placed in the base 1. A protrusion is also provided above the front cover for connecting the connecting frame 25 and the rear cover 24 together.

In one embodiment of the present disclosure, as shown in fig. 1, a placing slot 12 is provided on the base 1, and the weight plate 3 is stored in the placing slot 12 in the base 1 before the weight adjustment is performed. A plurality of isolation bars 13 are further arranged in the placing groove 12, and different numbers of weight plates 3 are isolated and arranged through the isolation bars 13.

During the process of placing the hand-held assembly on the base 1, the weight plate 3 in the placing groove 12 can be precisely matched with the isolation groove in the connecting frame 25. Facilitating the subsequent adjustment of the weight of the dumbbell. The both sides of standing groove 12 are used for placing handheld subassembly's front end housing 23 and rear end housing 24, still are provided with the recess that is in the same place with the protruding cooperation in front end housing 23 below in the one side of placing front end housing 23, prevent that bearing shaft 21 from rotating the in-process, driving front end housing 23 and rear end housing 24 and rotating together.

As shown in fig. 3, in the present embodiment, the self-locking mechanism 4 of the present disclosure includes a latch 42, and the latch 42 is disposed in an installation groove on the front end cover 23, and pre-compressed between the front end cover 23 and the base 1. When the hand-held assembly is separated from the base 1, the latch 42 moves to engage with the latch groove of the gear-shifting bracket 263 under the action of the elastic force.

In an embodiment of the present disclosure, the self-locking mechanism 4 further includes a second elastic member 41, and the elastic force for driving the latch 42 to move may be provided by the second elastic member 41. The second elastic member 41 may be a spring, the latch 42 is a rectangular block, a reserved opening 421 is formed in the latch 42, and the reserved opening 421 is an arc-shaped groove having a certain width.

Referring to fig. 6 and 8, a flange 2632 is disposed on an outer edge of the shift bracket 263, and a plurality of slots 2633 may be disposed around the flange 2632, where positions of the slots 2633 correspond to positions of the weight scale and the engaging portion on the scale cover 262. When the handheld component is located in the base 1, the flange on the gear shifting bracket 263 is located in the reserved opening 421 on the fixture block 42, so that the connection sleeve 261 can drive the bearing shaft 21 and the scale cover 262 to rotate, when the handheld component finishes the adjustment of the weight and leaves the base 1, and the matching portion is located at the position corresponding to the gear hole 2631, the position of the clamping groove 2633 also corresponds to the position of the fixture block 42, so that the fixture block 42 can move downwards under the action of the second elastic element 41 to be matched with the clamping groove 2633, so that the connection sleeve 261 cannot rotate, and the stability and the safety of the dumbbell in the using process are improved.

In one embodiment of the present disclosure, as shown in fig. 1 and 3, a jacking portion 11 is provided on the base 1, the jacking portion 11 is located at a position corresponding to the position of the self-locking mechanism 4, when the handheld component is placed on the base 1, the latch 42 moves upward under the action of the jacking portion 11, and when the handheld component is separated from the base 1, the latch 42 moves downward under the action of the second elastic member 41.

Specifically, latch 42 moves between a first position and a second position, and when the hand-held assembly is located in base 1, latch 42 is in the first position under the action of jack-up portion 11. At this time, the flange 2632 of the shift bracket 263 is located in the reserved opening 421 of the latch 42, and the connecting sleeve 261 can drive the bearing shaft 21 and the scale cover 262 to rotate.

When the weight adjustment of the dumbbell is completed, the hand-held assembly is separated from the base 1, and the latch 42 moves from the first position to the second position in the latch slot 2633 of the flange 2632 by the second elastic member 41. At this time, the flange 2632 cannot rotate under the restriction of the latch 42, so that the bearing shaft 21 and the connecting sleeve 261 cannot rotate, thereby ensuring the safety and stability of the dumbbell in use.

In an embodiment of the present disclosure, as shown in fig. 3, a detection plate 5 is further disposed in the dumbbell, at least one hardware module 51 for representing a current weight of the dumbbell is disposed on the detection plate 5, the detection plate 5 is fixedly connected to one end of the bearing shaft 21, and the fixing connection manner may be a fixing connection means known to those skilled in the art, such as bolt connection, adhesion, and the like, and will not be described herein again. The detecting plate 5 and the bearing shaft 21 can be driven to rotate synchronously by rotating the bearing shaft 21, so that the hardware module 51 can be rotated to a preset position. The support is further provided with a mounting groove 7, the mounting groove 7 is used for being abutted with the information reading module 6, when the hardware module 51 rotates to a preset position, the mounting groove 7 is abutted with the information reading module 6, and the information reading module 6 can read the information of the hardware module 51.

In detail, in one embodiment of the present disclosure, referring to fig. 11, 12 and 13, the triggering circuit assembly includes a detecting plate 5 and a hardware module 51, the detecting plate 5 rotates synchronously with the bearing shaft 11, and the bearing shaft 21 rotates to allow different numbers of weight plates 3 to be mounted on the dumbbells so that the dumbbells have different actual weights. When the actual weight of the dumbbell corresponds to the weight gear of the dumbbell, the detection plate 5 rotating synchronously with the bearing shaft 21 is butted against the fixed butting plate 52.

The detection plate 5 is rotatable in synchronization with the center axis of the bearing shaft 21 with respect to the extending direction of the bearing shaft 21. At least four hardware modules 51 may be disposed on the detection board 5, the four hardware modules 51 correspond to different weight gears, and there are four trigger circuits corresponding to the hardware modules 51. The hardware module 51 on the detection board 5, the trigger circuit and the rotary trigger board perform synchronous motion, so that different trigger circuits are in butt joint with the fixed butt joint board 52 when different actual weights of dumbbells correspond to weight gears of the dumbbells.

When the actual weight of the dumbbell is consistent with the weight gear of the dumbbell, one hardware module 51 of the four hardware modules 51 stays at the trigger position corresponding to the fixed docking plate 52, and the trigger circuit corresponding to the hardware module 51 is docked with the fixed docking plate 52. For example, the four hardware modules 51 may be distributed and arranged on different areas of the detection plate 5, so that the different areas on the detection plate 5 may correspond to weight gears of different tag information, the detection plate 5 may be divided into a first area, a second area, a third area and a fourth area, and the four areas respectively have the hardware modules 51 and the trigger circuits corresponding to the weight gears. When the actual weight and the weight gear of the dumbbell are consistent, the area of the rotary trigger plate corresponding to the weight gear stays in the trigger area, so that the trigger circuit on the rotary trigger plate is in butt joint with the fixed trigger plate. The weight gear of the dumbbell, the number of the information tags and the trigger circuits, the number and the positions of the areas where the information tags are arranged on the rotary trigger plate, and the trigger positions of the rotary trigger plate and the fixed butt plate, which are mentioned in the embodiment of the disclosure, can be determined according to actual conditions, and are not limited.

The fixed docking plate 52 is fixedly disposed on the bracket and has a circuit interface element 521 for conducting the trigger circuit and the identification element 61. The trigger circuit and the detection plate 5 move synchronously, when the actual weight of the dumbbell corresponds to the weight gear, the rotary trigger plate moves in place, the trigger circuit on the rotary trigger plate moves to the position corresponding to the circuit interface element 521, and the circuit interface element 521 can be in butt joint with the trigger circuit. When different trigger circuits are connected to the circuit interface element 521, different hardware modules 51 are in the trigger position, so that the identification element 61 can identify different hardware modules 51.

The fixed docking plate 52 is fixedly arranged on the bracket, the identification element 61 can be detachably assembled on the bracket, the circuit interface element 521 on the fixed docking plate 52 is docked with the identification element 61 when the identification element 61 is installed in place on the bracket, and the circuit interface element 521 is disconnected from the identification element 61 when the identification element 61 is detached from the bracket.

In practical application, after the identification element 61 is mounted on the bracket, the identification element 61 and the circuit interface element 521 can be always in a butt joint state, and different trigger circuits are in butt joint with the circuit interface element 521 through the movement of the detection plate 5, so that different hardware modules 51 are in butt joint with the identification element 61.

In the process of adjusting the weight of the dumbbell, when the actual weight of the dumbbell does not reach the weight corresponding to any weight gear, different trigger areas corresponding to different weight gears of the dumbbell are not located at the trigger positions corresponding to the circuit interface element 521, so that the trigger circuit cannot be butted with the circuit interface element, and the identification element 61 cannot identify the hardware module 51. Only when the actual weight of the dumbbell is adjusted to correspond to any weight gear, the area corresponding to the current gear on the detection plate 5 stays at the trigger position, the trigger circuit on the area is in butt joint with the circuit interface element 521, and the identification element 61 can identify the corresponding hardware module 51 and read the weight gear information of the dumbbell at present.

For example: after the identification element 61 is mounted on the bracket, the identification element 61 is butted against the circuit interface element 521 and is always kept in a butted state. At this time, the user adjusts the weight of the dumbbell from 5 kg to 10 kg by the hand-held assembly, and the detection plate 5 makes a rotational movement during the adjustment. Before the weight of the dumbbell is not adjusted to 10 kilograms, the hardware module 51 corresponding to 10 kilograms on the detection plate 5 and the trigger circuit are also in a motion state, and the circuit interface element 521 is only butted with the identification element 61; when the actual weight of the dumbbell is adjusted to 10 kg, the hardware module 51 corresponding to 10 kg on the detection plate 5 and the trigger circuit stay at the trigger position, and at this time, one end of the circuit interface element 521 is butted with the trigger circuit, and the other end is butted with the identification element 61, so that the trigger circuit and the identification element 61 are conducted. The identification element 61 starts identifying the dumbbell weight information in the hardware module 51 corresponding to 10 kg.

In one embodiment of the present disclosure, referring to fig. 11, 12 and 13, the circuit interface element 521 may be a two-headed pogo pin spring probe.

In practical application, the trigger circuit and the identification element 61 are respectively provided with a circuit interface connected with the spring probe, when the actual weight of the dumbbell is consistent with the weight gear of the dumbbell, the trigger circuit is located at the trigger position, one end of the spring probe is connected with the circuit interface of the trigger circuit, and the other end of the spring probe is connected with the circuit interface of the identification element 61, so that the trigger circuit is conducted with the identification element 61.

Each end of the spring probe is provided with a spring needle structure, and the spring needle is constructed to have an extended length which is interfered with the connection position of the circuit interface, so that when the probe is compressed, the spring needle can be tightly pressed against the connection position of the circuit interface to prevent short circuit or open circuit. The circuit interface element 521 can be selected according to the actual application, and is not limited to this.

In one embodiment of the present disclosure, referring to fig. 14, the dumbbell further includes an information reading module 6, the information reading module 6 is detachably mounted on the bracket, an identification element 61 and a data transmission module 63 are disposed in the information reading module 6, the data transmission module 63 is in communication connection with the identification element 61, the identification element 61 identifies weight gear information of the dumbbell in the hardware module 51, and the data transmission module 63 is configured to acquire the weight gear information acquired by the identification element 61 and transmit the weight gear information to an external device. After the weight of the dumbbell is adjusted, the weight gear information of the dumbbell is sent to the external equipment, and manual operation of a user is not needed. The data transmission module 63 may be implemented in a wired communication mode, a wireless communication mode, and the like, and the wireless communication mode may include, but is not limited to, WiFi, cellular network, bluetooth, BLE communication, and one or more combinations thereof. The operation module of the bluetooth module may include, but is not limited to, a broadcast mode, a master mode, a slave mode, and an observation module. The external device may be a client or a server, and the client may include, but is not limited to, a mobile phone, a sports bracelet, a display, an iPad, a handheld computer, and the like. In practical application, the external device can record the received dumbbell weight gear information, call corresponding algorithms and formulas for processing, and monitor and calculate the exercise amount parameters of the user without limitation.

In one embodiment of the present disclosure, referring to fig. 14, the information reading module 6 further includes a control unit 62, and the control unit 62 may be disposed between the identification element 61 and the data transmission module 63 to control the identification element 61 and the data transmission module 63, respectively. The control unit 62 may also be configured to receive a trigger signal from the trigger circuit, and is configured to control the identification element 61 to activate the identification function after receiving the trigger signal. For example, the circuit interface of the control unit 62 is set as an IO detection port, and the IO detection port can detect: level, voltage, current, pulse, etc. of the signal that can be detected. When the trigger circuit and the identification element 61 are turned on, the trigger circuit outputs a signal with a detectable level, voltage, current, pulse and the like to the IO detection port of the control unit 62, and the control unit 62 detects the signal change of the IO detection port, so that it can be determined that the actual weight of the dumbbell is consistent with the weight gear information of the dumbbell, and the identification function of the identification element 61 is started.

In practical applications, in principle, after the identification element 61 reads the dumbbell weight shift information in the hardware module 51, the operation is completed, and if the identification element 61 is always in the on state, unnecessary power consumption is caused, which affects the endurance time.

For this reason, in another embodiment of the present disclosure, the control unit 62 turns on the identification function of the identification element 61, the identification element 61 identifies the weight-shift information of the dumbbell in the hardware module 51 and sends the weight-shift information of the dumbbell to the control unit 62, and after the control unit 62 acquires the weight-shift information of the dumbbell, the control unit 62 sends a control instruction to the identification element 61 to control the identification element 61 to turn off the identification function. After the hardware module 51 is identified, the identification component 61 enters a sleep state, so that the power consumption of the identification component 61 is reduced to the greatest extent possible.

For example, after the actual weight of the dumbbell is adjusted from 5 kg to 10 kg, the trigger circuit is connected with the circuit interface element 521, the circuit interface element 521 turns on the trigger circuit and the identification element 61, the trigger circuit sends a signal with a detectable level, voltage, current, pulse and the like to the IO detection port, the control unit detects the change of the IO detection port, determines that the actual weight of the dumbbell is adjusted at the moment, starts the identification function of the identification element 61, and turns off the identification function of the identification element 61 after receiving the dumbbell weight shift information sent by the identification element 61.

In another embodiment of the present disclosure, referring to fig. 14, when the weight of the dumbbell starts to be adjusted, the original trigger circuit may be separated from the circuit interface element 521, until when the actual weight of the dumbbell is consistent with the dumbbell weight shift position that needs to be adjusted, the target trigger circuit corresponding to the weight shift position may be docked with the circuit interface element 521, and therefore, the control unit 62 needs to continue to maintain the function of the IO detection port, so that when the target trigger circuit is docked with the circuit element 521, a signal output by the target trigger circuit may be detected by the IO detection port, and the control unit 62 detects a signal change of the IO detection port, and controls the identification element 61 to start the identification function again. For example, when the user adjusts the weight of the dumbbell from 5 kg to 10 kg, after the trigger circuit corresponding to 5 kg is separated from the circuit interface element 521, the IO detection port is in a detection state, and when the weight of the dumbbell is adjusted to 10 kg, the trigger circuit corresponding to 10 kg is abutted to the circuit interface element 521, the trigger circuit outputs a signal to the IO detection port, the control unit 62 detects a signal change of the IO detection port, and sends an instruction to the identification element 61, and the identification element 61 is controlled to turn on the identification function again, so that the control unit 62 accurately determines the change of the actual weight of the dumbbell.

The control unit 62 may also be communicatively connected to a data transmission module 63, and the data transmission module 63 may be configured to transmit the dumbbell weight information transmitted by the control unit 62 to an external device. The data transmission module 63 may also be in a sleep state when not receiving the dumbbell weight shift information, thereby further reducing power consumption. The external device is configured to display the dumbbell weight shift information or analyze the dumbbell weight shift information, obtain an analysis result, and display the analysis result. For example, the client device having a display function may display the weight gear information of the dumbbell by using an application program, or call an algorithm in the application program to analyze the weight gear information of the dumbbell, obtain an analysis result, and display the analysis result. In practical applications, the type of the external device may be selected according to specific situations, and is not limited thereto.

In another embodiment of the present disclosure, the control unit 62 may be further configured to, after detecting the change of the IO detection port, detect no change of the IO detection port again within a predetermined time, control the identification element 61 to turn on the identification function, for example, set the predetermined time to 2.0 seconds (the predetermined time may be adjusted between 1.0 second and 5.0 seconds), detect no change of the IO detection port again within 2.0 seconds when the control unit 62 detects the change of the IO detection port, turn on the identification function of the identification element 61, may prevent the identification function of the identification element 61 from being turned on multiple times when the user performs the trip gear adjustment on the weight gear of the dumbbell, for example, when the user finishes using the dumbbell of gear a, the adjustment time of adjacent gear is 1.0 second, the adjustment time of the dumbbell gear a to gear C is 2.0 seconds, and when the weight of the dumbbell is adjusted, a trigger circuit of the trigger region corresponding to gear B may send a signal to the IO detection port, the dumbbell weight for gear B is not required to be identified and transmitted to an external device, so the time for adjusting the dumbbell gear can be used to determine the weight gear information of the dumbbell that needs to be identified and transmitted.

In one embodiment of the present disclosure, the hardware module 51 is an RFID electronic tag, and the corresponding identification element 61 is an RFID card reader, so that when the detection plate 5 rotates to the circuit interface element 521 to conduct the trigger circuit and the identification element 61, the identification element 61 reads the weight gear information in the RFID electronic tag. The weight gear information in the RFID electronic tag is read by the RFID card reader, and information exchange is performed with the RFID electronic tag through radio waves to obtain storage information in the RFID electronic tag, where the storage information may include weight gear information of the dumbbell, information related to the dumbbell, and the like.

When the actual weight of the dumbbell is the same as the weight of the weight gear, the area corresponding to the weight gear of the dumbbell on the detection plate 5 rotates to the corresponding trigger position of the identification element 61, the circuit interface element 521 conducts the trigger circuit located at the trigger position and the identification element 61, and the control unit 62 controls the RFID card reader to read information in the RFID electronic tag after receiving the trigger signal of the trigger circuit.

In one embodiment of the present disclosure, referring to fig. 1 and 2, the detection plate 5 is fixed on the bearing shaft 21 and located between the rear end cap 24 and the connecting frame 25, and the fixed butt plate is fixedly disposed on the rear end cap 24 or integrally formed with the rear end cap 24. When the detection plate 5 and the bearing shaft 21 rotate synchronously, the detection plate also rotates relative to the fixed butt plate, so that different trigger areas of the detection plate 5 stay at the trigger positions corresponding to the fixed butt plate. The information reading module 6 is detachably connected to the rear end cover 24, the rear end cover 24 is provided with a through hole, the information reading module 6 is in butt joint with the circuit interface element 521 on the fixed butt joint plate through the through hole, and replacement, maintenance and the like of the information reading module 6 are facilitated.

In an embodiment of the present disclosure, the hardware module 51 further stores the identity information of the handheld component, the identity information of the dumbbell may be the name of the dumbbell, the number of the dumbbell, the date of manufacture of the dumbbell, the date of purchase of the dumbbell, the number of days of use, the number of times of use, and other information related to the dumbbell, for example, the name of the dumbbell may be an intelligent dumbbell, the number of the dumbbell may be xxxxxx01, the date of the dumbbell may be 20xx year x month x day, the date of purchase of the dumbbell may be purchased on 20xx year x month x day, used xx days, and used x times. Those skilled in the art will appreciate that there are many types of information associated with dumbbells, which are illustrated herein by way of example only, and not by way of limitation, specific information contained within a dumbbell may be used in an actual application. The identification element 41 may also transmit the read identity information to an external device.

In one embodiment of the present disclosure, the information reading module 6 is detachably connected with the mounting groove 7. When different users used this dumbbell to take exercise, can place this mounting groove 7 in with this user assorted information reading module 6 to the dumbbell information when this user took exercise is read to module through this information reading, for example discerns current exercise equipment for the dumbbell, and reads the counter weight information of the dumbbell of chooseing for use when the user took exercise etc..

The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A dumbbell, comprising a hand held assembly, the hand held assembly comprising:

the number of the brackets is two;

a bearing shaft (21), wherein two ends of the bearing shaft (21) are respectively connected with the two brackets in a rotating way and are configured to bear the brackets;

two sleeves (22), wherein the two sleeves (22) are sleeved at two ends of the bearing shaft (21) respectively and are configured to move along the extension direction of the bearing shaft (21) under the rotation of the bearing shaft (21);

the counterweight plate (3), the counterweight plate (3) is provided with a through hole; the sleeve (22) is configured to move along the extension direction of the bearing shaft (21) into the through hole of the weight plate (3) or away from the through hole of the weight plate (3).

2. The dumbbell according to claim 1, characterized in that the bearing shaft (21) is provided with a threaded groove, and the sleeve (22) is provided with a first protrusion (222) matching with the threaded groove;

a thread groove is arranged on the inner wall of the sleeve (22), and a first bulge (222) matched with the thread groove is arranged on the bearing shaft (21).

3. The dumbbell of claim 2, characterized in that a guide mechanism is provided between the bracket and the sleeve (22), the guide mechanism being configured to guide the sleeve (22) to move along the extension direction of the bearing shaft (21).

4. The dumbbell of claim 1, wherein the support comprises a front end cap (23) and a rear end cap (24) which are arranged oppositely, and a connecting frame (25) which connects the front end cap (23) and the rear end cap (24); an open slot is defined between the front end cover (23) and the rear end cover (24); the open slot is configured for accommodating the weight plate (3).

5. The dumbbell according to claim 4, characterized in that the sleeve (22) is moved into the open slot in the direction of extension of the bearing shaft (21) and is configured for penetrating into a through hole of at least one of the weight plates (3).

6. The dumbbell of claim 4, further comprising a connection sleeve (261), the bearing shaft (21) and the sleeve (22) being located in an inner cavity of the connection sleeve (261), the connection sleeve (261) being configured to connect with the bearing shaft (21) and configured to rotate the bearing shaft (21).

7. The dumbbell of claim 6, characterized in that the load-bearing shaft (21) is in drive fit with the connecting sleeve (261) in a central position.

8. The dumbbell of claim 6, characterized by further comprising a shift bracket (263) rotating relative to the front end cover (23), wherein the connecting sleeve (261) extends from a middle position of the bearing shaft (21) to a position of the front end cover (23) and is in transmission connection with the shift bracket (263);

a gear mechanism is arranged between the gear shifting bracket (263) and the end surface of the front end cover (23), and comprises at least one matching part pre-pressed between the gear shifting bracket (263) and the front end cover (23) and a gear hole (2631) arranged on the gear shifting bracket or the front end cover; when the gear shifting bracket (263) rotates to a position where the matching part corresponds to the gear hole (2631), the matching part is matched with the gear hole (2631) under the action of elastic force.

9. The dumbbell of claim 8, characterized in that a scale cover (262) is further provided on the front end cover (23), and the connecting sleeve (261) is configured to be in driving connection with the scale cover (262); the shift lever bracket (263) is disposed on a side of the scale cover (262) facing the front cover (23), and configured to be pressed between the scale cover (262) and the front cover (23).

10. The dumbbell of claim 8, further comprising a base (1), the base (1) being configured for carrying the hand held assembly (2); handheld subassembly (2) still including setting up self-locking mechanism (4) on front end housing (23), self-locking mechanism (4) including the pre-pressure in front end housing (23) with fixture block (42) between base (1), handheld subassembly (2) be configured into with when base (1) break away from, fixture block (42) move under the effect of elastic force to with draw-in groove (2633) cooperation that set up on gear shifting support (263).

11. The dumbbell of claim 10, wherein the catching grooves (2633) are provided in plural numbers, distributed in a circumferential direction of the shift bracket (263); when the gear shifting bracket (263) rotates to a position where the matching part corresponds to the gear hole (2631), the clamping groove (2633) rotates to a position corresponding to the clamping block (42).

12. The dumbbell according to any one of claims 1 to 11, further comprising a sensing plate (5) located outside the support, wherein the sensing plate (5) is provided with at least one hardware module (51) for characterizing the current weight of the dumbbell, and wherein the bearing shaft (21) is configured to drive the sensing plate (5) to rotate relative to the support to rotate the at least one hardware module (51) to a predetermined position.

13. The dumbbell of claim 12, characterized in that a mounting slot (7) is provided on the support, the mounting slot (7) being configured for docking with an information reading module (6); when the hardware module (51) rotates to a position corresponding to the information reading module (6), the information reading module (6) is configured to read the information of the hardware module (51).

14. The dumbbell of claim 13, characterized in that the hardware module (51) is an RFID tag.

15. The dumbbell of claim 13, wherein the information reading module (6) is configured to be detachably connected with the mounting groove (7).