Adjustable dumbbell and dumbbell assembly

Abstract

The present invention relates to the technical field of fitness equipment, and specifically relates to an adjustable dumbbell and a dumbbell assembly. The adjustable dumbbell comprises a body, counterweight assemblies provided at two opposite ends of the body, and adjustment assemblies respectively provided on the counterweight assemblies; each adjustment assembly comprises a sliding rod and a positioning assembly, the positioning assembly is internally provided with a slide slot, the sliding rod is slidably arranged in the slide slot, each counterweight assembly is provided with a through groove, an end portion of the slide slot is provided with an opening corresponding to the through groove, and the sliding rod can slide through the opening and enter the corresponding through groove; the positioning assembly is provided with an adjustment channel that is parallel to the slide slot and communicated with the slide slot and the outside, and the side surface of the adjustment channel is provided with a plurality of recesses distributed in the length direction of the positioning assembly; and the sliding rod is provided with a movable handle that passes through the adjustment channel or the recesses and is exposed, and the movable handle can move within the adjustment channel or between the adjustment channel and the recesses. The present invention solves the technical problems of complex weight adjustment modes of existing dumbbells and complex operations of disassembling, assembling and replacing dumbbell plates.

Description

Adjustable dumbbell and dumbbell assembly TECHNICAL FIELD

[0001] The present application relates to the technical field of fitness equipment, in particular to an adjustable dumbbell and a dumbbell assembly. BACKGROUND

[0002] Dumbbell is an auxiliary equipment for weight lifting and fitness exercises, which is used for muscle strength training. Because there is no sound during exercise, it is named dumbbell.

[0003] The conventional adjustment method of the existing adjustable dumbbell on the market is to first install the dumbbell piece on the dumbbell rod, and then lock the dumbbell piece by pressing the nut. This adjustment method needs to be realized by constantly disassembling, taking and placing the dumbbell piece manually, which is complicated to operate and inconvenient to replace the dumbbell piece. Therefore, the present application provides an adjustable dumbbell which can conveniently adjust the weight of the dumbbell and is simple to operate, to solve the above technical problems. SUMMARY

[0004] In order to solve the technical problems of complex weight adjustment method, complicated disassembly and replacement of dumbbell pieces of the existing dumbbell, the present application provides an adjustable dumbbell and a dumbbell assembly.

[0005] The technical problem of the present application is solved by providing an adjustable dumbbell, which comprises a body, a counterweight assembly arranged at opposite ends of the body, and an adjustment assembly arranged on the counterweight assembly. The adjustment assembly comprises a sliding rod and a positioning assembly. The positioning assembly is provided with a sliding groove. The sliding rod is slidably arranged in the sliding groove. The counterweight assembly is provided with a through groove. The end of the sliding groove is provided with an opening corresponding to the through groove. The sliding rod can slide through the opening and enter the through groove. The positioning assembly is provided with an adjustment channel parallel to the sliding groove and communicating with the sliding groove and the outside. The side of the adjustment channel is provided with a plurality of recesses distributed along the length direction of the positioning assembly. The sliding rod is provided with a movable handle exposed through the adjustment channel or the recess. The movable handle can move in the adjustment channel or between the adjustment channel and the recess.

[0006] Preferably, the movable handle comprises a sliding block and a rod body connected together. The end of the sliding block away from the rod body is slidably connected with the sliding rod. The inner diameter of the rod body matches the inner diameter of the recess. The rod body is exposed through the adjustment channel or the recess.

[0007] Preferably, the adjustment assembly further comprises a positioning column slidably arranged in the sliding groove. An elastic element is arranged between the movable handle and the positioning column. The two ends of the elastic element abut against the movable handle and the positioning column respectively. The end of the positioning column away from the elastic element abuts against the inner side wall of the sliding groove.

[0008] Preferably, one end of the positioning column away from the elastic element is provided with a positioning bead, and the length direction of the inner side wall of the sliding groove is provided with a plurality of positioning holes corresponding to the positioning bead, and the positioning bead abuts against the inner side wall of the sliding groove or the positioning hole; when the positioning bead is slidingly clamped in the positioning hole, the movable handle is exposed through the recess.

[0009] Preferably, the counterweight assembly comprises a fixed counterweight piece and a plurality of movable counterweight pieces, the fixed counterweight piece is connected with the body and the positioning assembly respectively; the through groove comprises a first through groove arranged on the fixed counterweight piece and a second through groove arranged on the movable counterweight piece, the first through groove and the second through groove are communicated; after the sliding rod slidingly passes through the opening, the sliding rod passes through the first through groove and the second through groove in sequence.

[0010] Preferably, the sliding groove is connected with the first through groove arranged on the fixed counterweight piece; the body comprises a handle and a fixed plate respectively sleeved on two ends of the handle, the handle is provided with a clamping groove, one side of the fixed plate abuts against the inner side wall of the clamping groove, and the other side is detachably connected with the fixed counterweight piece.

[0011] Preferably, the counterweight assembly further comprises a dovetail protrusion, one side of the movable counterweight piece is provided with a dovetail groove matched with the dovetail protrusion, and the dovetail protrusion is inserted into the dovetail groove; the movable counterweight piece is clamped and limited by the dovetail protrusion and the adjacent fixed counterweight piece or movable counterweight piece, and the width of the top of the dovetail protrusion is not less than the width of the bottom.

[0012] Preferably, the sliding rod is further provided with a limiting channel, the movable handle comprises a first part and a second part connected in sequence from the direction of the sliding rod approaching the positioning assembly, the first part is slidably arranged in the limiting channel, the second part is provided with a limiting protrusion, and the inner diameter of the limiting protrusion matches the inner diameter of the recess.

[0013] Preferably, a step is arranged in the limiting channel, a limiting base is arranged on the first part, the limiting base is connected with the limiting protrusion, and the inner diameter of the limiting base is greater than the inner diameter of the recess; a first elastic element is sleeved on the first part, one end of the first elastic element abuts against the limiting base, and the other end abuts against the step.

[0014] Preferably, the counterweight assembly comprises a plurality of movable counterweight pieces; the movable counterweight piece is provided with a mounting hole corresponding to the sliding rod, and a plurality of mounting holes correspondingly form the through groove; the body comprises a handle and a fixed counterweight piece arranged at opposite ends of the handle, one side of the fixed counterweight piece is connected with the handle and the end of the sliding rod, and the other side is detachably connected with the counterweight assembly.

[0015] Preferably, the movable weight piece is provided with a dovetail groove on one side, and a dovetail protrusion on the other side; and the fixed weight piece and the adjacent movable weight piece are provided with the dovetail groove and the dovetail protrusion respectively.

[0016] Preferably, the dumbbell further comprises a fixed plate detachably arranged on the side of the fixed weight piece away from the movable weight piece, the fixed plate is provided with a latch, and the fixed weight piece is provided with a hole corresponding to the latch; the latch is a reset type index pin.

[0017] The application further provides a dumbbell assembly, which comprises a base and an adjustable dumbbell arranged on the base; the adjustable dumbbell comprises a body, weight assemblies arranged on opposite ends of the body, and an adjusting assembly arranged on the weight assemblies; the adjusting assembly comprises a sliding rod and a positioning assembly, the positioning assembly is provided with a sliding groove, the sliding rod is slidably arranged in the sliding groove, the weight assemblies are provided with a through groove, the end of the sliding groove is provided with an opening corresponding to the through groove, and the sliding rod can slide through the opening into the through groove; the positioning assembly is provided with an adjusting channel parallel to the sliding groove and communicating with the sliding groove and the outside, the side of the adjusting channel is provided with a plurality of recesses distributed along the length direction of the positioning assembly; the sliding rod is provided with a movable handle exposed through the adjusting channel or the recesses, and the movable handle can move in the adjusting channel or between the adjusting channel and the recesses.

[0018] Preferably, the dumbbell assembly further comprises a support frame detachably connected with the base, and at least part of the support frame is arranged on the end of the weight assembly away from the body; one of the base and the support frame is provided with a matching hole, and the other is provided with a matching part corresponding to the matching hole; the base is provided with a plurality of matching holes or matching parts, and the matching hole and the matching part are clamped to connect and fix the base and the support frame; or, the base is provided with a plurality of matching holes along the length direction of the sliding rod, and the support frame is provided with a matching part, the matching part and the single matching hole are matched to connect and fix the base and the support frame.

[0019] Preferably, the dumbbell assembly further comprises a bearing plate between the base and the weight assemblies, and the bearing plate is used for bearing the weight assemblies; the bearing plate is arranged on opposite sides of the base and detachably connected with the base.

[0020] Compared with the prior art, the adjustable dumbbell and the dumbbell assembly provided by the application have the following advantages:

[0021] 1. The adjustable dumbbell provided in this embodiment of the invention can conveniently adjust the weight and is very easy to operate; specifically, the slide rod set in the slide groove can slide on the slide groove in the positioning component and the through groove on the counterweight component, the slide rod can slide through the opening set at the end of the slide groove and enter the through groove, and a movable handle is provided on the slide rod.

[0022] Furthermore, by setting an adjustment channel parallel to the slide groove and connecting the slide groove to the outside, several recesses are set on the side of the adjustment channel along the length direction of the positioning component. The movable handle set on the slide rod passes through the adjustment channel or is exposed in the recess. The movable handle can move within the adjustment channel or between the adjustment channel and the recess.

[0023] It should be noted that the weight assembly of the adjustable dumbbell includes several dumbbell plates. When the number of dumbbell plates needs to be adjusted to adjust the weight of the dumbbell, taking increasing the number of dumbbell plates as an example, the movable handle is moved within the adjustment channel. At this time, the slider passes through the opening and enters the through slot on the weight assembly to restrict the removal and replacement of the dumbbell plates. After the weight of the adjustable dumbbell is adjusted and before starting the workout, at least part of the slider passes through the opening and enters the through slot on the weight assembly. At this time, the movable handle is moved from the adjustment channel to the recess to achieve a fixed engagement between the slider and the dumbbell plates.

[0024] This invention designs an adjustment component on the counterweight assembly of an adjustable dumbbell. The adjustment component works in conjunction with the counterweight assembly to achieve a fixed engagement between the slide bar and the dumbbell plates. This prevents components such as dumbbell plates and slide bars from detaching or falling off when using the adjustable dumbbell. This design solves the technical problems of complex weight adjustment methods and cumbersome disassembly and replacement of dumbbell plates in existing dumbbells.

[0025] 2. The adjustable dumbbell provided in this embodiment of the invention includes a sliding handle comprising a slider and a rod connected to the slider. The end of the slider away from the rod achieves a sliding connection between the slider and the rod. It should be noted that the rod on the sliding handle is exposed after passing through the adjustment channel or recess, and the inner diameter of the rod matches the inner diameter of the recess. By moving the rod, the sliding handle can move within the adjustment channel or between the adjustment channel and the recess.

[0026] 3. The adjustable dumbbell provided in this embodiment of the invention comprises a movable handle, an elastic element, and a positioning post arranged in sequence. The two ends of the elastic element abut against the movable handle and the positioning post, respectively. The movable handle abuts against the inner bottom wall of the slide groove, and the end of the positioning post away from the elastic element abuts against the inner side wall of the slide groove. By moving the rod on the movable handle, the movable handle is controlled to move from the concave position to the adjustment channel. When the movable handle moves to the adjustment channel, the movable handle and the positioning post can slide in the length direction of the slide groove.

[0027] 4. The adjustable dumbbell provided in this embodiment of the invention has a positioning bead disposed on the end of the positioning post away from the elastic element, so as to realize the positioning post sliding relative to the inner sidewall of the slide groove. The positioning post slides along the length direction of the inner sidewall of the slide groove through the positioning bead. The inner sidewall of the slide groove is also provided with a positioning hole that cooperates with the positioning bead. The positioning holes are arranged along the length direction of the inner sidewall of the slide groove. By cooperating with the positioning bead and the positioning hole on the inner sidewall of the slide groove, the movement of the movable handle and the sliding rod in the slide groove can be made more stable, improving the user experience of the adjustable dumbbell and thus extending the service life of the adjustable dumbbell.

[0028] It should be noted that during the weight adjustment of the adjustable dumbbell, when the positioning post drives the sliding bead on the elastic element to connect with the positioning hole, a vibration damping sensation will be generated, indicating that the positioning bead has been fixed in the positioning hole. At this time, the positioning post is fixed in the slide groove, and the elastic element and movable handle connected to the positioning post are also fixed.

[0029] 5. The adjustable dumbbell provided in this embodiment of the invention allows for weight adjustment by increasing or decreasing the number of movable weight plates. The fixed weight plate is connected to the main body and cannot be moved arbitrarily, ensuring stable installation of the movable weight plate. The fixed weight plate is connected to the positioning component, allowing the adjusting component and the weight component to cooperate in securing the slide bar and the movable weight plate after installation. It should be noted that after sliding through the opening, the slide bar first reaches the first through slot, and then further slides to reach the second through slot connected to the first through slot. The sliding of the slide bar limits the movable weight plate in its vertical direction.

[0030] In addition, connecting the fixed counterweight to the positioning component can improve the limiting effect of the slide bar on the movable counterweight. By fixing the fixed counterweight to the positioning component, the loosening or separation of the two can be avoided, which would affect the limiting effect of the slide bar on the movable counterweight.

[0031] 6. The adjustable dumbbell provided in this embodiment of the invention has a positioning component connected to a fixed counterweight plate, specifically connected to a first through groove through an opening via a sliding groove; the main body includes a grip bar for the user to hold the adjustable dumbbell during exercise, and fixed plates respectively sleeved on both ends of the grip bar, wherein the fixed plate is specifically disposed between the fixed counterweight plate and the inner sidewall of the slot away from the fixed counterweight plate, and the fixed plate is limited and fixed by the slot located on the grip bar.

[0032] 7. The adjustable dumbbell provided in this embodiment of the invention, by providing a dovetail protrusion and a dovetail groove on one side of the movable weight plate that matches the dovetail protrusion, can achieve limiting and fixing between adjacent movable weight plates and between fixed weight plates in the length direction of the adjustable dumbbell. The dovetail groove on the movable weight plate is used to insert the dovetail protrusion. The dovetail protrusion can engage and limit adjacent fixed weight plates or movable weight plates. The width of the top of the dovetail protrusion and the corresponding dovetail groove is not less than the width of the bottom. With this design, the dovetail protrusion can be pulled upwards until it separates from the dovetail groove, thereby allowing for quick and convenient upward lifting and removal of the corresponding movable weight plate.

[0033] 8. The adjustable dumbbell provided in this embodiment of the invention allows for the adjustment of the weight of the counterweight assembly by vertically pressing the movable handle to disengage the limiting protrusion from the recess, then horizontally sliding the movable handle on the adjustment channel to drive the slide rod through the through groove and extend and retract to different lengths within the through groove. After releasing the movable handle, the limiting protrusion engages with the recess to fix the length of the slide rod, thereby limiting the number of counterweight plates constituting the counterweight assembly and realizing the adjustment of the weight of the adjustable dumbbell. The structure is simple and the operation is convenient.

[0034] 9. The adjustable dumbbell provided in this embodiment of the invention has a step in the limiting channel, and a limiting base is provided on the first part. The limiting base is connected to the limiting protrusion, and the inner diameter of the limiting base matches the inner diameter of the step. The inner diameter of the limiting base is larger than the inner diameter of the recess. The step in the limiting channel that matches the inner diameter of the limiting base is to limit the left and right movement of the limiting base, thereby limiting the movement of the limiting protrusion and ensuring that the limiting protrusion can accurately and vertically enter the recess. At the same time, the inner diameter of the limiting base being larger than the inner diameter of the recess ensures that the movable handle can always move within the channel and will not disengage. A first elastic member is sleeved on the first part, with one end of the first elastic member abutting the limiting base and the other end abutting the step, so that the movable handle can be pressed down axially and can be reset by the restoring force of the first elastic member after being released.

[0035] 10. The adjustable dumbbell provided in this embodiment of the invention includes a weight assembly comprising several movable weight plates. Each movable weight plate has a mounting hole corresponding to a slide bar, and these mounting holes form a through groove. The weight of a single movable weight plate is not limited. The end of the slide bar away from the movable handle extends and retracts within the through groove to limit the number of movable weight plates, thereby achieving weight adjustment of the adjustable dumbbell. The main body includes a grip and fixed weight plates disposed at opposite ends of the grip. One side of the fixed weight plate is connected to the end of the grip and the slide bar, and the other side is detachably connected to the weight assembly. The grip provides a holding part for the user during exercise, and the fixed weight plates connect and support the weight assembly to the grip and adjustment assembly.

[0036] 11. The adjustable dumbbell provided in this embodiment of the invention has a dovetail groove on one side of the movable counterweight plate and a dovetail protrusion matching the dovetail groove on the opposite side. The dovetail groove on the fixed counterweight plate can engage with the dovetail protrusion of the adjacent movable counterweight plate to achieve fixed engagement of the adjacent movable counterweight plates. The engagement of the dovetail groove and the dovetail protrusion provides a unidirectional limit, that is, the adjacent movable counterweight plates can be disengaged from bottom to top, and fixed from top to bottom. When the slide bar does not enter a certain movable counterweight plate, the dumbbell is lifted, and the outermost movable counterweight plate will automatically disengage from the movable counterweight plate that is not matched with the slide bar in the lifting direction. On the side where the fixed counterweight plate and the adjacent movable counterweight plate are close to each other, one side is provided with a dovetail groove and the other side is provided with a dovetail protrusion. The fixed counterweight plate and the counterweight assembly are connected by engagement to achieve axial fixation of the movable counterweight plate.

[0037] 12. The adjustable dumbbell provided in this embodiment of the invention further includes a fixing plate detachably disposed on the side of the fixed counterweight away from the movable counterweight. The fixing plate is provided with a pin, and the fixed counterweight has a corresponding hole. The fixing plate is detachably connected to the main body. The weight of the fixing plate is less than the weight of the movable counterweight, making it easier to adjust the weight of the dumbbell, thus providing a wider range of adjustable weights and higher adjustment sensitivity. The pin is a reset-type indexing pin; the indexing pin is a simple and durable positioning device. When positioning is required, the indexing pin extends and tightly engages with the hole on the fixed counterweight, locking the position of the fixing plate. When the fixing plate is not in use, the indexing pin can be removed, easily separating the fixed counterweight from the fixing plate. This design is convenient to operate, and the connection between the fixed counterweight and the fixing plate is stable.

[0038] 13. The dumbbell assembly provided in the embodiments of the present invention has the same beneficial effects as the adjustable dumbbell described above, and will not be repeated here. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 is a schematic diagram of the overall structure of the adjustable dumbbell according to the first embodiment of the present invention.

[0041] Figure 2 is a schematic diagram of the overall structure of the adjustable component in the adjustable dumbbell of the first embodiment of the present invention.

[0042] Figure 3 is an exploded view of the adjustable dumbbell section structure of the first embodiment of the present invention.

[0043] Figure 4 is an exploded view of the adjustment assembly of the adjustable dumbbell of the first embodiment of the present application.

[0044] Figure 5 is a schematic view of the positioning bead of the adjustable dumbbell of the first embodiment of the present application.

[0045] Figure 6 is an exploded view of the partial structure of the adjustable dumbbell of the first embodiment of the present application.

[0046] Figure 7 is a schematic view of the movable weight plate of the adjustable dumbbell of the first embodiment of the present application.

[0047] Figure 8 is an exploded view of the overall structure of the dumbbell assembly of the second embodiment of the present application.

[0048] Figure 9 is a schematic view of the vertical sliding slot of the sliding plate of the adjustable dumbbell of the first embodiment of the present application.

[0049] Figure 10 is an exploded view of the fixed plate and the fixed weight plate pin-locked connection of the adjustable dumbbell of the first embodiment of the present application.

[0050] Figure 11 is a schematic view of the overall structure of the adjustable dumbbell of the third embodiment of the present application.

[0051] Figure 12 is an exploded view of the adjustable dumbbell of the third embodiment of the present application.

[0052] Figure 13 is a sectional view of the adjustable dumbbell of the third embodiment of the present application.

[0053] Figure 14 is an enlarged view of A in Figure 13.

[0054] Figure 15 is a perspective view of the adjustment handle of the adjustable dumbbell of the third embodiment of the present application.

[0055] Figure 16 is a sectional view of the adjustable dumbbell of the third embodiment of the present application.

[0056] Figure 17 is an enlarged view of B in Figure 16.

[0057] Figure 18 is a schematic view of the pin member of the adjustable dumbbell of the third embodiment of the present application.

[0058] Figure 19 is a perspective view of the dumbbell assembly of the fourth embodiment of the present application.

[0059] Figure 20 is a schematic view of the base and the support frame of the dumbbell assembly of the fourth embodiment of the present application.

[0060] Figure 21 is an exploded view of the partial structure of the dumbbell assembly of the fourth embodiment of the present application.

[0061] 100, adjustable dumbbell; 200, dumbbell assembly; 1, body; 11, grip rod; 111, clamping groove; 12, fixed plate; 121, fixed hole; 13, latch; 131, pull ring; 2, weight assembly; 21, through groove; 211, first through groove; 212, second through groove; 22, fixed weight plate; 221, hole; 23, movable weight plate; 24, dovetail protrusion; 25, dovetail groove; 3, adjusting assembly; 31, sliding rod; 311, movable handle; 3111, sliding block; 3112, rod body; 312, notch; 313, vertical sliding groove; 3131, first part; 3132, second part; 32, positioning assembly; 321, sliding groove; 322, adjusting channel; 323, recess; 324, fixing structure; 33, positioning column; 331, positioning bead; 332, positioning hole; 34, elastic element; 4, base; 5, bearing plate; 6, support frame; 61, matching hole; 62, matching element; 63, avoidance opening; 1000, limiting protrusion; 1100, mounting hole; 1200, limiting channel; 1201, step; 1220, first part; 1221, second part; 1222, limiting protrusion; 1223, first elastic element; 1224, limiting base; 1300, movable rod; 1301, fixed sleeve; 1302, operation handle; 1303, connecting head; 1304, second elastic element. DETAILED DESCRIPTION

[0062] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0063] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0064] It should be noted that the terms "first" and "second" and the like in the specification and claims of the present application are used to distinguish different objects, and are not used to describe a specific order.

[0065] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0066] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0067] In addition, the terms "mounting", "setting", "provided with", "connected", "connected" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0068] Please refer to FIG. 1 and FIG. 2, the first embodiment of the present application provides an adjustable dumbbell 100, the adjustable dumbbell 100 includes a body 1, a weight assembly 2 arranged at both ends of the body 1 and an adjusting assembly 3 arranged on the weight assembly 2; the adjusting assembly 3 includes a sliding rod 31 and a positioning assembly 32, the positioning assembly 32 is provided with a sliding groove 321, the sliding rod 31 is slidably arranged in the sliding groove 321, the weight assembly 2 is provided with a through groove 21, the end of the sliding groove 321 is provided with an opening corresponding to the through groove 21, and the sliding rod 31 can slide through the opening and enter the through groove 21; the positioning assembly 32 is provided with an adjusting channel 322 parallel to the sliding groove 321 and communicating with the sliding groove 321 and the outside, the side of the adjusting channel 322 is provided with a plurality of recesses 323 distributed along the length direction of the positioning assembly 32; the sliding rod 31 is provided with a movable handle 311 exposed through the adjusting channel 322 or the recess 323, and the movable handle 311 can move in the adjusting channel 322 or between the adjusting channel 322 and the recess 323.

[0069] It can be understood that the adjustable dumbbell 100 provided by the first embodiment of the present application can conveniently adjust the weight of the weight assembly 2 through the cooperation of the positioning assembly 32 and the through slot 21, and the operation is very simple. Specifically, the sliding rod 31 arranged in the sliding slot 321 can slide in the sliding slot 321 in the positioning assembly 32 and the through slot 21 on the weight assembly 2, the sliding rod 31 can slide through the opening arranged at the end of the sliding slot 321 into the through slot 21, and the movable handle 311 is arranged on the sliding rod 31. Further, the adjusting channel 322 parallel to the sliding slot 321 and communicating the sliding slot 321 with the outside is arranged, a plurality of recesses 323 distributed along the length direction of the positioning assembly 32 are arranged on the side of the adjusting channel 322, and the movable handle 311 arranged on the sliding rod 31 is exposed through the adjusting channel 322 or the recess 323, wherein the movable handle 311 can move in the adjusting channel 322 or between the adjusting channel 322 and the recess 323.

[0070] It should be noted that the weight assembly 2 of the adjustable dumbbell 100 includes a plurality of dumbbell plates, when the adjustable dumbbell 100 needs to adjust the number of dumbbell plates to realize the weight adjustment of the dumbbell, taking increasing the number of dumbbell plates as an example, the movable handle 311 is controlled to move in the adjusting channel 322, at this time the sliding rod 31 enters the through slot 21 on the weight assembly 2 through the opening to limit the disassembly and replacement of the dumbbell plates. After the weight adjustment of the adjustable dumbbell 100 is completed, before starting the bodybuilding, at least part of the sliding rod 31 enters the through slot 21 on the weight assembly 2 through the opening, at this time the movable handle 311 is controlled to move from the adjusting channel 322 to the recess 323, and the sliding rod 31 is limited by the movable handle 311 located in the recess 323 to realize the relative fixation between the sliding rod 31 and the dumbbell plates.

[0071] It should be further noted that the adjustable dumbbell 100 provided by the first embodiment of the present application, whether the movable handle 311 is located in the recess 323 or in the adjusting channel 322, the dumbbell plates of the adjustable dumbbell 100 are clamped in the vertical direction. The present application designs the adjusting assembly 3 arranged on the weight assembly 2 in the adjustable dumbbell 100, and realizes the fixed clamping between the sliding rod 31 and the dumbbell plates through the cooperation of the adjusting assembly 3 and the weight assembly 2, so that the situation that the elements such as the dumbbell plates and the sliding rod 31 are separated or dropped can be avoided when the adjustable dumbbell 100 is used, and the technical problems that the weight adjustment mode of the existing dumbbell is complex and the disassembly and replacement of the dumbbell plates are complicated are solved.

[0072] In some embodiments, the adjusting assembly 3 is arranged on the weight assembly 2, and the sliding rod 31 on the adjusting assembly 3 can enter the through slot 21 of the weight assembly 2 through the opening at the end of the sliding groove 321. The dumbbell 100 is symmetrical in structure; therefore, in the preferred embodiment of the first embodiment of the present application, the number of adjusting assemblies 3 is preferably two, and each adjusting assembly 3 controls only one weight assembly 2.

[0073] Referring to FIGS. 2 and 3, the weight assembly 2 includes fixed weight plates 22 and a plurality of movable weight plates 23. The fixed weight plates 22 are respectively connected to the body 1 and the positioning assembly 32.

[0074] It can be understood that the fixed weight plates 22 are dumbbell plates arranged at the ends of the body 1 and fixedly connected to the body 1. The movable weight plates 23 are arranged on the side of the fixed weight plates 22 away from the body 1. The movable weight plates 23 and the fixed weight plates 22, and the adjacent movable weight plates 23 are connected in a detachable manner. In the first embodiment of the present application, the number of fixed weight plates 22 is two, and the fixed weight plates 22 are arranged at the ends of the body 1 on both sides. The fixed weight plates 22 are connected to the body 1 by using threaded fasteners to lock the fixed weight plates 22 to the ends of the body 1, or by directly welding the fixed weight plates 22 to the ends of the body 1.

[0075] Further, the ends of the positioning assembly 32 on both sides are provided with fixing structures 324. In the present embodiment, threaded fasteners are used to lock the fixing structures 324 on the positioning assembly 32 in the first through slot 211 on the fixed weight plates 22. In addition, the fixing structures 324 can also be directly welded to the first through slot 211 on the fixed weight plates 22 to lock the positioning assembly 32 and the fixed weight plates 22. It can be understood that the embodiments of the present embodiment cannot be used to limit the present application. Any modification, equivalent replacement, and improvement within the principles of the present application shall be included in the protection scope of the present application.

[0076] In some embodiments, the detachable connection between the adjacent movable weight plates 23 and the fixed weight plates 22, and between the adjacent movable weight plates 23 includes but is not limited to clamping connection, bolt connection, and threaded connection, which can be set according to actual conditions. As the preferred embodiment of the first embodiment of the present application, the detachable connection between the movable weight plates 23 and the fixed weight plates 22, and between the adjacent movable weight plates 23 is clamping connection.

[0077] When the adjustable dumbbell 100 is installed, the first movable weight plate 23 is connected with the fixed weight plate 22, and then the movable weight plates 23 are sequentially stacked from the second movable weight plate 23, and the detachable connection mode enables the movable weight plates 23 to be sequentially stacked and fixed in the length direction of the adjustable dumbbell 100.

[0078] It should be noted that the connection between the movable weight plate 23 and the fixed weight plate 22 and between adjacent movable weight plates 23 is detachable, which enables the dumbbell user to conveniently and quickly disassemble, take and place the dumbbell plates when the weight of the adjustable dumbbell 100 needs to be increased or decreased.

[0079] The fixed weight plates 22 on the weight assembly 2 provided by the first embodiment of the present application are respectively arranged at the two ends of the body 1, wherein the connection between the fixed weight plates 22 and the body 1 ensures that the fixed weight plates 22 and the body 1 cannot be randomly moved, thereby playing a role of stably installing the movable weight plates 23.

[0080] In some embodiments, the fixed weight plates 22 are also connected with the positioning assembly 32, and through this design, after the installation of the movable weight plates 23 is completed, the fixed clamping between the slide rod 31 and the movable weight plates 23 can be realized by the cooperation of the adjusting assembly 3 and the weight assembly 2.

[0081] The fixed weight plates 22 provided by the first embodiment of the present application are two in number and are respectively arranged at the two ends of the body 1.

[0082] It should be further noted that if the two ends of the body 1 are not connected with the fixed weight plates 22, when the adjustable dumbbell 100 needs to be used and the movable weight plates 23 are installed on one side of the two ends of the body 1 and the other side is not installed with the movable weight plates 23, the body 1 will form an inclined angle with the bottom surface on which the adjustable dumbbell 100 is placed, and therefore it is more troublesome to install the movable weight plates 23 on the end of the body 1 which is not installed with the movable weight plates 23.

[0083] Further, please continue to refer to FIGS. 2 and 3, the slot 21 includes a first through slot 211 arranged on the fixed weight plate 22 and a second through slot 212 arranged on the movable weight plate 23, the first through slot 211 and the second through slot 212 are in communication, and the slide rod 31 sequentially passes through the first through slot 211 and the second through slot 212 after sliding through the opening.

[0084] It can be understood that in the first embodiment of the present application, the weight of the adjustable dumbbell 100 is adjusted by increasing or decreasing the number of movable weight plates 23 installed on the adjustable dumbbell 100.

[0085] When the sliding rod 31 on the adjusting assembly 3 enters a second through slot 212, the sliding rod 31 can be connected with the corresponding movable weight piece 23.

[0086] In some embodiments, the first through slot 211 is arranged on the outer side of the fixed weight piece 22, and the second through slot 212 is arranged on the outer side of the movable weight piece 23 and corresponds to the position of the first through slot 211, so as to realize the communication between the first through slot 211 and the second through slot 212.

[0087] It should be noted that the sliding rod 31 first reaches the first through slot 211 after sliding through the opening, and then reaches the second through slot 212 in communication with the first through slot 211 by further sliding, and the sliding of the sliding rod 31 limits the movable weight piece 23 in the vertical direction.

[0088] In some embodiments, the fixed weight piece 22 is connected with the positioning assembly 32 through the first through slot 211 arranged thereon. By this design, the limiting effect of the sliding rod 31 on the movable weight piece 23 can be improved. Since the sliding rod 31 can slide through the first through slot 211 and the second through slot 212 in turn, by fixing the positioning assembly 32 in the first through slot 211, the loosening or even separation between the positioning assembly 32 and the fixed weight piece 22 can be avoided, which affects the limiting effect of the sliding rod 31 on the movable weight piece 23 in the vertical direction.

[0089] Please refer to FIGS. 2-4 and 9. The movable handle 311 includes a sliding block 3111 and a rod body 3112 connected with each other. The end of the sliding block 3111 away from the rod body 3112 is in sliding connection with the sliding rod 31, and the inner diameter of the rod body 3112 matches the inner diameter of the recess 323, and the rod body 3112 is exposed after passing through the adjusting channel 322 or the recess 323.

[0090] It can be understood that the movable handle 311 includes the sliding block 3111 and the rod body 3112 connected with the sliding block 3111. The sliding block 3111 is slidable on the sliding rod 31, and is in sliding connection with the sliding rod 31 through the vertical sliding groove 313 arranged in the gap 312 of the sliding rod 31. The sliding block 3111 can slide in and out of the recess 323 along the vertical sliding groove 313, and the rod body 3112 at the other end of the sliding block 3111 is exposed after passing through the adjusting channel 322 or the recess 323.

[0091] It should be noted that the rod body 3112 on the movable handle 311 is exposed after passing through the adjusting channel 322 or the recess 323, and the inner diameter of the rod body 3112 matches the inner diameter of the recess 323. By rotating the rod body 3112, the movable handle 311 can be moved in the adjusting channel 322 or between the adjusting channel 322 and the recess 323.

[0092] In some embodiments, the sliding block 3111 is controlled by the rod body 3112, the sliding block 3111 drives the sliding rod 31 to slide in the sliding groove 321 relative to the sliding groove 321; when it is needed to adjust the weight of the adjustable dumbbell 100, the rod body 3112 can be moved from the recessed position 323 to the adjusting channel 322, and the rod body 3112 is exposed after passing through the adjusting channel 322.

[0093] At this time, the rod body 3112 is located in the adjusting channel 322, and the rod body 3112 can move back and forth in the length direction of the adjusting channel 322, that is, by moving the rod body 3112 to the end close to the first through slot 211 or away from the first through slot 211.

[0094] As an example, when the rod body 3112 gradually moves to the direction close to the first through slot 211, the sliding rod 31 also passes through the opening at the end of the sliding groove 321 at the speed of the rod body 3112, and then passes through the first through slot 211 and the second through slot 212 in sequence.

[0095] It should be noted that no matter how the rod body 3112 moves and drives the sliding rod 31 to slide, at least part of the sliding rod 31 is located inside the sliding groove 321, because the adjusting channel 322 is arranged on the positioning assembly 32 and is parallel to the sliding groove 321, so that the rod body 3112 can slide on the adjusting channel 322, through this design, the fixing effect of the rod body 3112 can be improved, and then when the rod body 3112 is used to assist in adjusting the weight of the adjustable dumbbell 100, the rod body 3112 is avoided from being separated or even falling from the exposed adjusting channel 322, which affects the overall service life of the adjustable dumbbell 100.

[0096] Among them, the position of the sliding rod 31 has the following situations: the sliding rod 31 can be located entirely inside the sliding groove 321, the sliding rod 31 can have part located inside the sliding groove 321 and part located inside the first through slot 211, and each part of the sliding rod 31 can be located inside the sliding groove 321, the first through slot 211 and the second through slot 212 at the same time.

[0097] In some embodiments, the part of the sliding rod 31 located inside the first through slot 211 and the second through slot 212 can be limited and fixed with the through slot 21, and the movable weight piece 23 is limited and fixed in the vertical direction of the adjustable dumbbell 100.

[0098] When the weight adjustment of the adjustable dumbbell 100 is completed, the rod body 3112 can be moved from the adjusting channel 322 to the recessed position 323, at this time, the rod body 3112 is exposed after passing through the recessed position 323, the position of the rod body 3112 is fixed by the recessed position 323, and then the position of the sliding rod 31 is also fixed at the same time.

[0099] Please refer to FIG. 2, FIG. 3 and FIG. 4, the adjusting assembly 3 further comprises a positioning column 33 slidably arranged in the sliding groove 321, and the elastic element 34 is arranged between the movable handle 311 and the positioning column 33, and two ends of the elastic element 34 abut against the movable handle 311 and the positioning column 33 respectively; and the end of the positioning column 33 away from the elastic element 34 abuts against the inner side wall of the sliding groove 321.

[0100] In some embodiments, the lower end of the slide rod 31 is provided with a gap 312, and the movable handle 311, the elastic element 34 and the positioning column 33 are installed in the vertical sliding groove 313 formed in the gap 312, wherein the gap 312 provided at the lower end of the slide rod 31 can provide a space for the positioning column 33. It can be understood that the gap 312 and the vertical sliding groove 313 formed in the slide rod 31 can make the installation of the movable handle 311, the elastic element 34 and the positioning column 33 more convenient.

[0101] In some embodiments, the vertical sliding groove 313 in the slide rod 31 is shaped as shown in FIG. 9, and the vertical sliding groove 313 communicated with the gap 312 comprises a first part 3131 and a second part 3132, the shape and size of the first part 3131 are adapted to the sliding block 3111 on the movable handle 311, and the shape and size of the second part 3132 are adapted to the elastic element 34 and the positioning column 33; when installing the movable handle 311, the elastic element 34 and the positioning column 33, the sliding block 3111 is first placed in the first part 3131 of the vertical sliding groove 313, and then the elastic element 34 and the positioning column 33 are sequentially placed in the second part 3132 to realize the installation, after the above-mentioned parts are installed, the slide rod 31 is placed into the sliding groove 321 through the end opening of the sliding groove 321, and finally the rod body 3112 is connected with the sliding block 3111 located inside the gap 312 after passing through the sliding groove 321 or the recess 323, wherein the rod body 3112 is screwed into the hole position formed on the surface of the sliding block 3111 through the thread formed near the end of the sliding block 3111.

[0102] It can be understood that the movable handle 311, the elastic element 34 and the positioning column 33 of the first embodiment of the present application are sequentially arranged, and the movable handle 311 and the positioning column 33 are respectively abutted by two ends of the elastic element 34. Among them, the movable handle 311 abuts against the inner bottom wall of the sliding groove 321, and the end of the positioning column 33 away from the elastic element 34 abuts against the inner side wall of the sliding groove 321, and the rod body 3112 on the movable handle 311 is actuated to control the movable handle 311 to move from the recess 323 to the adjusting channel 322, when the movable handle 311 moves to the adjusting channel 322, the movable handle 311 and the positioning column 33 can slide in the length direction of the sliding groove 321.

[0103] Specifically, the elastic element 34 abuts against the slider 3111 on the movable handle 311; when the elastic element 34 is not deformed or slightly deformed, the elastic element 34 between the movable handle 311 and the positioning column 33 can abut the movable handle 311 and the positioning column 33 against the opposite inner side wall in the sliding groove 321, at this time, the rod body 3112 on the movable handle 311 is exposed from the recess 323.

[0104] Further, when the rod body 3112 is moved from the recess 323 to the adjusting channel 322, the elastic element 34 is obviously deformed, at this time, the rod body 3112 on the movable handle 311 is exposed to the adjusting channel 322, by arranging the elastic element 34 between the movable handle 311 and the positioning column 33, it can be realized that when the weight of the adjustable dumbbell 100 is adjusted and the number of movable weight plates 23 is changed, the rod body 3112 needs to be moved to the adjusting channel 322 by exerting a certain force, so as to avoid that the movable weight plates 23 are dropped due to the accidental touch of the rod body 3112 on the movable handle 311.

[0105] In some embodiments, if the rod body 3112 on the movable handle 311 is moved from the recess 323 to the adjusting channel 322, the number of movable weight plates 23 is not adjusted, the rod body 3112 is released and the movement of the rod body 3112 is stopped, the force of the elastic element 34 recovering from deformation will act on the slider 3111 on the movable handle 311, the slider 3111 drives the rod body 3112 to move from the adjusting channel 322 to the recess 323, the rod body 3112 is clamped in the exposed recess 323, so as to limit the movement of the movable handle 311.

[0106] Please refer to FIG. 2, FIG. 4 and FIG. 5, the positioning column 33 is provided with a positioning bead 331 at one end away from the elastic element 34, the length direction of the inner side wall of the sliding groove 321 is provided with a plurality of positioning holes 332 corresponding to the positioning bead 331, the positioning bead 331 abuts against the inner side wall of the sliding groove 321 or the positioning hole 332; when the positioning bead 331 is clamped in the positioning hole 332, the movable handle 311 is exposed through the recess 323.

[0107] It can be understood that the positioning bead 331 is arranged at one end of the positioning column 33 away from the elastic element 34, so as to realize the limiting sliding of the positioning column 33 relative to the inner side wall of the sliding groove 321, when the rod body 3112 is moved from the recess 323 to the adjusting channel 322, the elastic element 34 will be obviously deformed, at this time, the rod body 3112 can be moved to the adjusting channel 322 by exerting a certain force, and the continuous exertion of the force can make the movable handle 311 freely move in the adjusting channel 322, at the same time, the positioning column 33 also slides in the length direction of the inner side wall of the sliding groove 321 through the positioning bead 331.

[0108] Meanwhile, the inner side wall of the sliding groove 321 is provided with a positioning hole 332 matched with the positioning bead 331, and the positioning hole 332 is arranged along the length direction of the inner side wall of the sliding groove 321, and the cooperation between the positioning bead 331 and the positioning hole 332 is achieved on the inner side wall of the sliding groove 321.

[0109] The first embodiment of the present application can make the movement of the sliding rod 31 more stable when the movable handle 311 moves, and improve the use experience of the dumbbell and prolong the service life of the dumbbell.

[0110] It should be noted that the positioning column 33 can slide relative to the sliding groove 321, and is fixed in the positioning hole 332 through the positioning bead 331, and the stepless motion is converted into a step motion.

[0111] Specifically, during the weight adjustment of the dumbbell, when the positioning column 33 drives the elastic element 34 to slide to the position where the positioning bead 331 is connected with the positioning hole 332, a “click” vibration damping feeling is generated, indicating that the positioning bead 331 has been fixed in the positioning hole 332, and at this time, the positioning column 33 is fixed in the sliding groove 321, and the elastic element 34 and the movable handle 311 connected with the positioning column 33 are also fixed.

[0112] Further, when the movable handle 311 is actuated, the movable handle 311 drives the sliding rod 31 to slide, and also drives the elastic element 34 and the positioning column 33 to move together, and the vibration damping feeling generated when the positioning column 33 slides to the position where the positioning bead 331 is connected with the positioning hole 332 is realized through the small deformation of the positioning bead 331.

[0113] Please refer to FIG. 4 and FIG. 6, the sliding groove 321 is connected with the first through groove 211 arranged on the fixed weight piece 22, wherein the positioning assembly 32 is connected with the fixed weight piece 22, specifically, an opening corresponding to the through groove 21 is arranged at the end of the sliding groove 321, and the sliding groove 321 is connected with the first through groove 211 through the opening.

[0114] Further, the body 1 includes a handle 11 and fixed plates 12 respectively sleeved on both ends of the handle 11, the handle 11 is provided with a clamping groove 111, one side of the fixed plate 12 abuts against the inner side wall of the clamping groove 111, and the other side is detachably connected with the fixed weight piece 22.

[0115] In the first embodiment of the present application, the body 1 comprises a handlebar 11 held by the dumbbell user during the exercise, and a fixed plate 12 sleeved on both ends of the handlebar 11, and the clamping groove 111 provided on the handlebar 11 is responsible for limiting the fixed plate 12, wherein the fixed plate 12 is arranged between the fixed weight plate 22 and the inner side wall of the clamping groove 111 away from the fixed weight plate 22, and the fixed plate 12 is limited and fixed by the clamping groove 111 on the handlebar 11.

[0116] It should be noted that the clamping groove 111 on the handlebar 11 is arranged around the outer circumferential surface of the handlebar 11, and the inner side wall of the clamping groove 111 is arranged to face the fixed weight plate 22.

[0117] When the fixed plate 12 is sleeved and installed on the handlebar 11, the fixed plate 12 is placed in the clamping groove 111, one side of the fixed plate 12 is supported by the inner side wall of the clamping groove 111, and the other side is fixed on the fixed weight plate 22.

[0118] In some embodiments, in order to achieve the purpose of more convenient disassembly and replacement of the fixed plate 12 according to the needs of the dumbbell user, the fixed plate 12 can be designed in the shape of "π" or other shapes, which can avoid the positioning assembly 32 installed on the fixed weight plate 22.

[0119] Among them, the weight of the fixed plate 12 is smaller than the weight of the movable weight plate 23, which greatly improves the flexibility of adjusting the weight of the adjustable dumbbell 100.

[0120] In some embodiments, the detachable connection between the fixed plate 12 and the fixed weight plate 22 can be snap connection, pin locking connection, bolt cooperation connection, or other connection methods, that is, the specific embodiments of the present embodiment cannot be used to limit the present application, and any modification, equivalent replacement and improvement within the principles of the present application shall be included in the protection scope of the present application.

[0121] Please refer to FIG. 10, as a preferred embodiment of the first embodiment of the present application, the fixed plate 12 and the fixed weight plate 22 are connected by pin locking to realize the installation of the fixed plate 12. Specifically, the fixed plate 12 is provided with a fixed hole 121 for the pin 13 to pass through, and the fixed weight plate 22 is provided with a hole 221 matched with the pin 13, the pin 13 passes through the fixed hole 121 from the side of the fixed plate 12 away from the fixed weight plate 22 and is inserted into the hole 221 to lock the fixed plate 12 and the fixed weight plate 22; conversely, pulling the pull ring 131 provided on the end of the pin 13 and rotating the pin 13 can make the pin 13 and the hole 221 unlock, so as to unlock and separate the fixed plate 12 and the fixed weight plate 22.

[0122] Referring to FIG. 1, FIG. 6 and FIG. 7, the counterweight assembly 2 further comprises dovetail protrusions 24, and the movable counterweight piece 23 is provided with dovetail grooves 25 on one side of the movable counterweight piece 23, and the dovetail protrusions 24 are inserted into the dovetail grooves 25.

[0123] In some embodiments, the movable counterweight piece 23 is limited by the dovetail protrusions 24 and the adjacent fixed counterweight piece 22 or movable counterweight piece 23, and the width of the top of the dovetail protrusion 24 is not less than the width of the bottom.

[0124] It can be understood that the first embodiment of the present application can realize the limiting and fixing of the adjacent movable counterweight pieces 23 and the fixed counterweight piece 22 and the movable counterweight piece 23 in the length direction of the adjustable dumbbell 100 by providing the dovetail protrusions 24 and the dovetail grooves 25 on one side of the movable counterweight piece 23.

[0125] It should be noted that the dovetail grooves 25 on the movable counterweight piece 23 are used to insert the dovetail protrusions 24, and the dovetail protrusions 24 can limit the adjacent fixed counterweight piece 22 or movable counterweight piece 23, wherein the width of the top of the dovetail protrusion 24 is not less than the width of the bottom, and by this design, the dovetail protrusion 24 can be pulled to the top until the dovetail protrusion 24 is separated from the dovetail groove 25, and then the corresponding movable counterweight piece 23 can be pulled up and taken out quickly and conveniently.

[0126] In the implementation scheme provided by the first embodiment of the present application, the adjacent movable counterweight pieces 23 and the adjacent fixed counterweight piece 22 and the movable counterweight piece 23 are fixed in the length direction of the adjustable dumbbell 100 by the cooperation of the dovetail protrusions 24 and the dovetail grooves 25.

[0127] Specifically, in some embodiments, for the adjacent fixed counterweight piece 22 and the movable counterweight piece 23, the dovetail groove 25 is provided on the side of the movable counterweight piece 23 facing the fixed counterweight piece 22, the dovetail protrusion 24 is inserted into the dovetail groove 25 from the top of the movable counterweight piece 23, and the end of the dovetail protrusion 24 away from the dovetail groove 25 is provided with a connecting structure, and the connecting structure is connected with the connecting hole provided on the fixed counterweight piece 22.

[0128] It can be understood that the cooperation mode of the dovetail protrusions 24 and the dovetail grooves 25 between the adjacent movable counterweight pieces 23 is the same, and by this design, the axial positioning of the movable counterweight piece 23 can be realized, so that the movable counterweight pieces 23 cannot move relative to each other, and the dislocation between the dumbbell pieces in the adjustable dumbbell 100 is prevented, and the safety and stability are higher. The connecting structure provided on the dovetail protrusion 24 and the connecting hole on the fixed counterweight piece 22 or the movable counterweight piece 23 can be designed according to actual needs, and will not be described here.

[0129] In some embodiments, there can be a difference in weight between the movable weight plates 23. Generally, the strength of each dumbbell user can be different due to factors such as age and gender, and if the weight of each movable weight plate 23 is the same, it can not be possible to find a dumbbell weight suitable for each user by fine-tuning the weight.

[0130] For example, if the weight of each movable weight plate 23 is 2 kg, in order to ensure that the weights at both ends of the adjustable dumbbell 100 are the same, the minimum weight of the adjustable dumbbell 100 is 4 kg, and heavier ones reach 8 kg, which cannot meet the needs of a dumbbell user who needs a 6 kg dumbbell. Therefore, the first embodiment of the present application provides a way to solve this problem by setting movable weight plates 23 of different weights.

[0131] Referring to FIG. 8, the second embodiment of the present application also provides a dumbbell assembly 200, which includes a base 4 and a dumbbell disposed on the base 4, and the dumbbell is the adjustable dumbbell 100 described above.

[0132] It can be understood that the dumbbell assembly 200 provided by the second embodiment of the present application can meet the needs of storage of the adjustable dumbbell 100 in a non-use state and convenient disassembly and assembly during use by setting the base 4 on the adjustable dumbbell 100.

[0133] It should be noted that the adjustable dumbbell 100 is placed on the base 4, and when adjusting its weight, such as adding or removing dumbbell plates and replacing dumbbell plates of different weights, it will be more convenient and fast, greatly saving the time and effort required for disassembly and assembly.

[0134] In some embodiments, the base 4 is made of metal, which can well protect the adjustable dumbbell 100 and avoid the adjustable dumbbell 100 from being affected by external collisions, thereby affecting the service life of the adjustable dumbbell 100.

[0135] It should be noted that the dumbbell assembly 200 provided by the second embodiment of the present application has the same beneficial effects as the adjustable dumbbell 100 described above.

[0136] Please continue to refer to FIG. 8, in some embodiments, the dumbbell assembly 200 further includes a bearing plate 5 located between the base 4 and the weight assembly 2, and the bearing plate 5 is used to bear the weight assembly 2.

[0137] Specifically, the bearing plate 5 is arranged on opposite sides of the base 4 and detachably connected with the base 4. It can be understood that when the adjustable dumbbell 100 is in a non-use state, the bearing plate 5 is located between the base 4 and the weight assembly 2 on the adjustable dumbbell 100, and the weight assembly 2 is supported by the bearing plate 5. It should be noted that the bearing plate 5 provided by the second embodiment of the present application is specifically a nylon plate, which can better avoid the weight assembly 2 on the adjustable dumbbell 100 from directly bumping the base. Through this design, the adjustable dumbbell 100 can be protected and the service life of the adjustable dumbbell 100 can be prolonged.

[0138] Please continue to refer to Figure 8. In some embodiments, the dumbbell assembly 200 further comprises a support frame 6 detachably connected with the base 4, and at least part of the support frame 6 is arranged on the end of the weight assembly 2 away from the body 1.

[0139] It can be understood that the support frame 6 provided by the second embodiment of the present application can limit and support the end of the weight assembly 2 away from the body 1, thereby ensuring that when the weight of the adjustable dumbbell 100 is increased or decreased or different weight dumbbell plates are replaced, the dumbbell plates will not fall out of the support frame 6 fixed on both ends of the base 4. This structure also facilitates the adjustment of the weight of the adjustable dumbbell 100.

[0140] Further, one of the base 4 and the support frame 6 is provided with a matching hole 61, and the other is provided with a matching part 62 corresponding to the matching hole 61. The base 4 is provided with a plurality of matching holes 61 or matching parts 62, and the matching hole 61 and the matching part 62 are clamped to connect and fix the base 4 and the support frame 6.

[0141] It should be noted that the base 4 and the support frame 6 are detachably connected, specifically by opening the matching hole 61 and the matching part 62 arranged corresponding to the position of the matching hole 61.

[0142] In the preferred technical solution of the second embodiment of the present application, the matching hole 61 and the matching part 62 are respectively located on the base 4 and the support frame 6, and a plurality of matching holes 61 are uniformly arranged in the length direction of the base 4. The matching part 62 is clamped in the matching hole 61 to achieve the clamping connection of the base 4 and the support frame 6.

[0143] Among them, the matching part 62 on the support frame 6 can be clamped with the plurality of matching holes 61 on the base 4. During the use of the adjustable dumbbell 100, the dumbbell user may need to disassemble a part of the dumbbell plate due to the need for a larger or smaller dumbbell weight, and the weight of the weight assembly 2 needs to be adjusted. The matching part 62 and the matching hole 61 can ensure that different numbers of dumbbell plates on the weight assembly 2 can be clamped flexibly.

[0144] The support frame further has an avoiding opening 63, which avoids the bearing plate 5.

[0145] As an example, when the weight of the adjustable dumbbell 100 needs to be reduced, the space occupied by the weight assembly 2 together with the body 1 in the base 4 is also reduced, and the support frame 6 supports the weight assembly 2 in a limited manner. The fitting part 62 can be clamped with the fitting hole 61 arranged on the base 4 close to the weight assembly 2. Of course, when the weight of the adjustable dumbbell 100 needs to be increased, the support frame 6 also needs to support the weight assembly 2 in a limited manner, and the fitting part 62 can be clamped with the fitting hole 61 arranged on the base 4 away from the weight assembly 2. Then, the dumbbell piece is increased or the dumbbell piece with different weight is replaced to increase the weight of the dumbbell. It can be understood that the connection mode of the base 4 and the support frame 6 is not limited to clamping connection, and the fitting hole 61 and the fitting part 62 can also be bolted, and can also be slidingly limited. The specific connection mode can be set according to the daily use demand and preference of the dumbbell user.

[0146] Please refer to FIG. 11 to FIG. 15, the third embodiment of the present application provides a kind of adjustable dumbbell 100, adjustable dumbbell 100 including body 1, two respectively setting in the weight assembly 2 of body 1 opposite two ends and setting on the adjusting assembly 3 of body 1;Adjusting assembly 3 includes slide bar 31 and the positioning assembly 32 of slidable sleeve setting in slide bar 31, positioning assembly 32 is opened with adjusting channel 322 and several recesses 323 being communicated with adjusting channel 322 along its length direction, slide bar 31 is equipped with the movable handle 311 exposed to positioning assembly 32, movable handle 311 and adjusting channel 322 slidingly connect;Slide bar 31 is also provided with limiting channel 1200, movable handle 311 includes first part 1220 and second part 1221 being connected in sequence from the direction of approaching positioning assembly 32 of slide bar 31, first part 1220 is slidably arranged in limiting channel 1200, second part 1221 is provided with limiting lug 1222, the inner diameter of limiting lug 1222 matches with the inner diameter of recess 323;Weight assembly 2 is provided with through groove 21 matched with slide bar 31;When the weight of weight assembly 2 needs to be adjusted, vertically press movable handle 311, so that limiting lug 1222 is separated from recess 323, then movable handle 311 is horizontally slid on adjusting channel 322, drives slide bar 31 to pass through through groove 21 and is telescopic in through groove 21 to different length, then movable handle 311 is loosened, so that limiting lug 1222 is clamped with recess 323 and is positioned, then the length of slide bar 31 is fixed, to limit the number of movable weight piece 23 constituting weight assembly 2, to realize the weight of the adjustable dumbbell 100, simple structure, convenient operation.

[0147] It can be understood that one adjustment assembly 3 can only adjust the weight of one weight assembly 2, so for the adjustable dumbbell 100 with two weight assemblies 2 arranged at both ends of the body 1, in principle, at least two adjustment assemblies 3 corresponding to the two weight assemblies 2 should be arranged to realize the weight of the two weight assemblies 2 can be adjusted according to the user's demand.

[0148] Further, please refer to FIG. 12 and FIG. 13, the weight assembly 2 includes a plurality of movable weight plates 23, the movable weight plate 23 is provided with a mounting hole 1100 corresponding to the sliding rod 31, and a plurality of mounting holes 1100 are correspondingly formed through the groove 21; the weight of a single movable weight plate 23 is not limited, and the end of the sliding rod 31 away from the movable handle 311 is telescopic in the through groove 21 to limit the number of movable weight plates 23, so as to realize the weight adjustment of the adjustable dumbbell 100.

[0149] Specifically, in order to make the sliding rod 31 more easily pass through the through groove 21 to be telescopic inside, the cross-sectional area of the end of the sliding rod 31 matched with the through groove 21 can be slightly smaller than the cross-sectional area of the middle part of the sliding rod 31, that is, the end can be chamfered.

[0150] Specifically, according to different exercise needs, the weight of the movable weight plate 23 is not limited.

[0151] Further, please refer to FIG. 14 and FIG. 15, the limiting channel 1200 is provided with a step 1201, the first part 1220 is provided with a limiting base 1224, the limiting base 1224 is connected with the limiting protrusion 1222, the inner diameter of the limiting base 1224 matches with the inner diameter of the step 1201, and the inner diameter of the limiting base 1224 is larger than the inner diameter of the recess 323; the step 1201 matched with the inner diameter of the limiting base 1224 is arranged in the limiting channel 1200 to limit the left and right movement of the limiting base 1224, thereby limiting the movement of the limiting protrusion 1222, ensuring that the limiting protrusion 1222 can accurately vertically enter the recess 323, and at the same time, the inner diameter of the limiting base 1224 is larger than the inner diameter of the recess 323, which can ensure that the movable handle 311 can always move in the limiting channel 1200 and will not be separated.

[0152] Further, the first part 1220 of the movable handle 311 is sleeved with a first elastic member 1223, one end of the first elastic member 1223 abuts against the limiting base 1224, and the other end abuts against the step 1201; so that the movable handle 311 can be pressed downward along the axial direction, and after the hand is released, the reset can be realized through the restoring force of the first elastic member 1223 and the limiting protrusion 1222 can be automatically clamped with the recess 323, which is convenient to operate.

[0153] Further, please refer to Fig. 12, the body 1 comprises a handle 11 and fixed weight pieces 22 arranged at opposite ends of the handle 11, one side of the fixed weight pieces 22 is connected with the handle 11 and the end of the positioning assembly 32, and the other side is detachably connected with the weight assembly 2; the handle 11 provides a holding part for a user during movement, and the fixed weight pieces 22 realize the connection and support fixing of the weight assembly 2 with the handle 11 and the adjusting assembly 3.

[0154] Optionally, the handle 11 can be engraved with patterns on the surface thereof, so as to improve the friction when a user holds the adjustable dumbbell 100, and prevent the dumbbell from falling off during exercise and causing injury.

[0155] Optionally, the weight of the fixed weight pieces 22 is not limited, and preferably, the weight of the fixed weight pieces 22 is the same as that of the movable weight pieces 23.

[0156] Further, the movable weight piece 23 is provided with a dovetail groove 25 on one side and a dovetail protrusion 24 matched with the dovetail groove 25 on the other side, the dovetail groove 25 on the movable weight piece 23 can be matched with the dovetail protrusion 24 of the adjacent movable weight piece 23 to realize the fixed clamping of the adjacent movable weight piece 23, and the matching of the dovetail groove 25 and the dovetail protrusion 24 provides single-directional limiting, i.e., the adjacent movable weight piece 23 can be separated from below to above, and fixed from above to below; when the slide rod 31 does not enter a certain movable weight piece 23, the adjustable dumbbell 100 is lifted, and the outermost movable weight piece 23 is automatically separated from the movable weight piece 23 which is not matched with the slide rod 31 in the lifting direction; and the side of the fixed weight piece 22 and the adjacent movable weight piece 23 close to each other is provided with the dovetail groove 25 on one side and the dovetail protrusion 24 on the other side; so as to realize the fixed clamping of the fixed weight piece 22 and the weight assembly 2, and realize the axial fixing of the movable weight piece 23.

[0157] It can be understood that, in order to realize the fixing of the fixed weight piece 22 and the movable weight piece 23, the side of the fixed weight piece 22 close to the movable weight piece 23 should also be provided with the corresponding dovetail groove 25 or the dovetail protrusion 24.

[0158] Further, please refer to Figs. 12, 16 to 18, the adjustable dumbbell 100 provided by the third embodiment of the present application further comprises a fixed plate 12 detachably arranged on the side of the fixed weight piece 22 away from the movable weight piece 23, the fixed plate 12 is provided with a bolt 13, and the fixed weight piece 22 is provided with a hole 221 corresponding to the bolt 13; the fixed plate 12 is detachably connected with the body 1, and the weight of the fixed plate 12 is less than that of the movable weight piece 23, so as to more conveniently adjust the weight of the adjustable dumbbell 100, make the adjustable weight specification contain a wider range, and have higher adjusting sensitivity.

[0159] Specifically, please refer to FIG. 11 and FIG. 12, the handle 11 is further provided with a limiting protrusion 1000, and the limiting protrusion 1000 cooperates with the fixed weight piece 22 to limit the relative displacement of the fixed plate 12.

[0160] Further, the pin 13 is a reset type index pin. The index pin is a simple and durable positioning device. When positioning is needed, the index pin is extended and tightly matched with the hole 221 on the fixed weight piece 22 to lock the position of the fixed plate 12. When the fixed plate 12 is not used, the index pin is removed, and the fixed weight piece 22 and the fixed plate 12 can be easily separated. This design is convenient to operate, and the fixed plate 12 and the fixed weight piece 22 are stably connected. Specifically, please refer to FIG. 12, FIG. 16 to FIG. 18; the pin 13 is a reset type index pin, which comprises an operating handle 1302 and a movable rod 1300 fixedly connected with the operating handle 1302. A fixed sleeve 1301 is sleeved on the movable rod 1300, and a connecting head 1303 is arranged at one end of the movable rod 1300. The surface of the fixed sleeve 1301 is further provided with threads, and the pin 13 is fixed in the fixed hole 121 on the fixed plate 12 through the fixed sleeve 1301.

[0161] Specifically, please refer to FIG. 17, a second elastic member 1304 is arranged between the fixed sleeve 1301 and the movable rod 1300. In the initial state, the connecting head 1303 on the movable rod 1300 is extended into the hole 221 on the fixed weight piece 22 under the elastic force of the second elastic member 1304, so that the fixed plate 12 and the fixed weight piece 22 are stably connected. When the fixed plate 12 is not needed, the user pulls the operating handle 1302 to pull the connecting head 1303 out of the hole 221, so that the fixed plate 12 and the fixed weight piece 22 are separated. The size of the index pin is not limited, as long as the fixed plate 12 and the fixed weight piece 22 can be stably connected.

[0162] Please refer to FIG. 19, the fourth embodiment of the present application further provides a dumbbell assembly 200, which comprises a base 4, a support frame 6 and an adjustable dumbbell 100 as described above. The base 4 and the support frame 6 are detachably connected, and the support frame 6 is arranged at both ends of the base 4 and connected with the end of the weight assembly 2 away from the adjusting assembly 3. The adjustable dumbbell 100 is accommodated in the base 4, and the support frame 6 is attached to both ends of the weight assembly 2 to limit and support the adjustable dumbbell 100, which is beneficial to the storage and assembly of the adjustable dumbbell 100. The adjustable dumbbell 100 has the same beneficial effects as described above.

[0163] Please refer to Fig. 19 to Fig. 21, further, the base 4 of the dumbbell assembly 200 is provided with a plurality of matching holes 61 along the length direction of the positioning assembly 32, the support frame 6 is provided with a matching piece 62, the matching piece 62 matches with a single matching hole 61 to connect and fix the base 4 and the support frame 6; when the weight assembly 2 contains different number of movable weight plates 23, the position of the matching piece 62 and the matching hole 61 is adjusted to realize flexible clamping.

[0164] Specifically, the matching piece 62 and the matching hole 61 are threadedly connected.

[0165] Please refer to Fig. 20, it can be understood that, in order to further fix the unused movable weight plate 23, the side of the support frame 6 close to the movable weight plate 23 should also be provided with a dovetail convex 24 or a dovetail groove 25.

[0166] Optionally, the movable weight plate 23 and the movable weight plate 23, the movable weight plate 23 and the fixed weight plate 22, the movable weight plate 23 and the support frame 6 can also adopt other connection and fixing modes, which are not limited here.

[0167] The above has carried on the detailed introduction to the adjustable dumbbell and the dumbbell assembly disclosed by the embodiment of the application, the principle and the implementation mode of the application have been described in the text by applying specific examples, the above embodiment is only used for helping understanding the method and the core thought of the application. Meanwhile, for the general technical personnel in the art, according to the idea of the application, the specific implementation mode and the application range will have the change, and the above-mentioned, the content of the specification should not be understood as the limitation of the application, any modification, equivalent replacement and improvement within the principle of the application should be included in the protection scope of the application.

Claims

1. An adjustable dumbbell, characterized in that: the adjustable dumbbell comprises a body, weight assemblies arranged at opposite ends of the body, and an adjusting assembly arranged on the weight assemblies; the adjusting assembly comprises a sliding rod and a positioning assembly, the positioning assembly is internally provided with a sliding groove, the sliding rod is slidably arranged in the sliding groove, the weight assemblies are provided with a through groove, the end of the sliding groove is provided with an opening corresponding to the through groove, and the sliding rod can slide through the opening into the through groove; the positioning assembly is provided with an adjusting channel parallel to the sliding groove and communicating with the sliding groove and the outside; the side of the adjusting channel is provided with a plurality of recesses distributed along the length direction of the positioning assembly; the sliding rod is provided with a movable handle exposed through the adjusting channel or the recesses, and the movable handle can move in the adjusting channel or between the adjusting channel and the recesses.

2. The adjustable dumbbell according to claim 1, characterized in that: the movable handle comprises a sliding block and a rod body connected together; the end of the sliding block away from the rod body is slidably connected with the sliding rod, the inner diameter of the rod body matches the inner diameter of the recesses, and the rod body is exposed through the adjusting channel or the recesses.

3. The adjustable dumbbell according to claim 2, characterized in that: the adjusting assembly further comprises a positioning column slidably arranged in the sliding groove, an elastic element is arranged between the movable handle and the positioning column, and the two ends of the elastic element abut against the movable handle and the positioning column respectively; the end of the positioning column away from the elastic element abuts against the inner side wall of the sliding groove.

4. The adjustable dumbbell according to claim 3, characterized in that: the end of the positioning column away from the elastic element is provided with a positioning bead, and the length direction of the inner side wall of the sliding groove is provided with a plurality of positioning holes corresponding to the positioning bead; the positioning bead abuts against the inner side wall of the sliding groove or the positioning hole; when the positioning bead is slidably engaged with the positioning hole, the movable handle is exposed through the recesses.

5. The adjustable dumbbell according to claim 4, characterized in that: the weight assemblies comprise fixed weight plates and a plurality of movable weight plates; the fixed weight plates are connected with the body and the positioning assembly respectively; the through groove comprises a first through groove arranged on the fixed weight plate and a second through groove arranged on the movable weight plate, the first through groove and the second through groove are communicated; after the sliding rod slides through the opening, the sliding rod sequentially passes through the first through groove and the second through groove.

6. The adjustable dumbbell according to claim 5, characterized in that: the sliding groove is connected with the first through groove arranged on the fixed weight plate; the body comprises a handle and fixed plates respectively sleeved at both ends of the handle; the handle is provided with a clamping groove, one side of the fixed plate abuts against the inner side wall of the clamping groove, and the other side is detachably connected with the fixed weight plate.

7. The adjustable dumbbell according to claim 6, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The counterweight assembly further comprises a dovetail protrusion, and one side of the movable counterweight plate is provided with a dovetail groove matched with the dovetail protrusion, and the dovetail protrusion is inserted into the dovetail groove. The movable counterweight plate is clamped and limited by the adjacent fixed counterweight plate or movable counterweight plate through the dovetail protrusion, and the width of the top of the dovetail protrusion is not less than the width of the bottom.

8. The adjustable dumbbell of claim 1, wherein: The slide rod is further provided with a limiting channel, the movable handle comprises a first part and a second part connected in sequence from the slide rod to the positioning assembly, the first part is slidably arranged in the limiting channel, and the second part is provided with a limiting protrusion, and the inner diameter of the limiting protrusion is matched with the inner diameter of the recess.

9. The adjustable dumbbell of claim 8, wherein: The limiting channel is provided with a step, the first part is provided with a limiting base, the limiting base is connected with the limiting protrusion, and the inner diameter of the limiting base is greater than the inner diameter of the recess; The first part is sleeved with a first elastic member, one end of the first elastic member abuts against the limiting base, and the other end abuts against the step.

10. The adjustable dumbbell of claim 9, wherein: The counterweight assembly comprises a plurality of movable counterweight plates, and the movable counterweight plates are provided with mounting holes corresponding to the slide rod, and a plurality of the mounting holes correspondingly form the through groove; The body comprises a handle and fixed counterweight plates arranged at opposite ends of the handle, one side of the fixed counterweight plates is connected with the handle and the end of the slide rod, and the other side is detachably connected with the counterweight assembly.

11. The adjustable dumbbell of claim 10, wherein: One side of the movable counterweight plate is provided with a dovetail groove, and the other side away from the dovetail groove is provided with a dovetail protrusion matched with the dovetail groove; and one side of the fixed counterweight plate and the adjacent movable counterweight plate away from each other is provided with the dovetail groove and the dovetail protrusion respectively.

12. The adjustable dumbbell of claim 11, wherein: The dumbbell further comprises a fixed plate detachably arranged on the side of the fixed counterweight plate away from the movable counterweight plate, the fixed plate is provided with a latch, and the fixed counterweight plate is provided with a hole corresponding to the latch; and the latch is a reset type index pin.

13. A dumbbell assembly characterized by, The dumbbell assembly comprises a base and an adjustable dumbbell arranged on the base; The adjustable dumbbell comprises a body, counterweight assemblies arranged at opposite ends of the body, and an adjusting assembly arranged on the counterweight assemblies; The adjusting assembly comprises a slide rod and a positioning assembly, the positioning assembly is provided with a sliding groove, the slide rod is slidably arranged in the sliding groove, the counterweight assembly is provided with a through groove, the end of the sliding groove is provided with an opening corresponding to the through groove, and the slide rod can slide through the opening into the through groove; The positioning assembly is provided with an adjusting channel parallel to the sliding groove and communicating with the sliding groove and the outside, the side of the adjusting channel is provided with a plurality of recesses distributed along the length direction of the positioning assembly; the sliding rod is provided with a movable handle exposed through the adjusting channel or the recess, the movable handle is movable in the adjusting channel or between the adjusting channel and the recess.

14. The dumbbell assembly of claim 13, wherein: The dumbbell assembly further comprises a support frame detachably connected with the base, at least part of the support frame is respectively arranged on the end of the weight assembly away from the body; One of the base and the support frame is provided with a matching hole, and the other is provided with a matching part corresponding to the matching hole, the base is provided with a plurality of matching holes or matching parts, the matching hole and the matching part are clamped to connect and fix the base and the support frame; or, the base is provided with a plurality of matching holes along the length direction of the sliding rod, the support frame is provided with a matching part, the matching part is matched with a single matching hole to connect and fix the base and the support frame.

15. The dumbbell assembly of claim 13, wherein: The dumbbell assembly further comprises a bearing plate between the base and the weight assembly, the bearing plate is used for bearing the weight assembly; The bearing plate is arranged on the opposite sides of the base and is detachably connected with the base.

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