Telescopic dumbbell
By using a retractable dumbbell design, the number of weight plates can be adjusted using a screw and clamping plates, thus solving the safety hazard caused by the non-adjustable handle length and improving both safety and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-03
AI Technical Summary
The existing dumbbell handles cannot be adjusted in length, which may cause them to collide with the body when fewer weight plates are fixed, posing a safety hazard.
A retractable dumbbell was designed, in which the number of weight plates is adjusted by first and second fixing members, and the weight plates are held by screws and clamping plates to ensure that the fixing members do not extend too far when using fewer weight plates, thereby reducing the risk of collision.
It improves training safety, avoids collisions between the fixtures and the body, and enhances safety and ease of use.
Smart Images
Figure CN224071068U_ABST
Abstract
Description
Technical Field
[0001] This utility model generally relates to the field of fitness equipment, and more particularly to a retractable dumbbell. Background Technology
[0002] A dumbbell is an auxiliary tool used in weightlifting and fitness exercises. A dumbbell typically consists of a handle, weight plates, and a nut, which secures the weight plates to the handle.
[0003] In existing technology, the length of the handle cannot be adjusted regardless of the number of weight plates attached to it. During muscle training, if fewer weight plates are attached to the handle, the handle may extend too far and potentially collide with the body, causing injury. Utility Model Content
[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a retractable dumbbell that is safe for training.
[0005] Firstly, the retractable dumbbell of this utility model includes:
[0006] A gripping assembly includes a handle, a first fixing plate, and a second fixing plate, wherein the first fixing plate and the second fixing plate are respectively fixedly connected to the handle;
[0007] The first fixing member includes a first screw and a first clamping piece. The first screw is screwed to the handle and extends into the handle from one end of the handle. The first clamping piece is directly opposite the first fixing piece. The first screw passes through a plurality of first bell pieces, and the first bell pieces are located between the first clamping piece and the first fixing piece.
[0008] The second fixing member includes a second screw and a second clamping plate. The second screw is screwed to the handle and extends into the handle from one end of the handle. The second clamping plate is directly opposite the second fixing plate. The second screw passes through a plurality of second bells, which are located between the second clamping plate and the second fixing plate.
[0009] According to the technical solution provided in the embodiments of this application, a first screw passes through several first weight plates, and the first fixing member is rotated so that the first clamping plate and the first fixing plate jointly clamp and fix the first weight plates. The fewer the number of first weight plates, the smaller the distance between the first fixing plate and the first clamping plate; the more the number of first weight plates, the larger the distance between the first fixing plate and the first clamping plate. Similarly, a second screw passes through several second weight plates, and the second fixing member is rotated so that the second clamping plate and the second fixing plate jointly clamp and fix the second weight plates. The fewer the number of second weight plates, the smaller the distance between the second fixing plate and the second clamping plate; the more the number of second weight plates, the larger the distance between the second fixing plate and the second clamping plate. When using a smaller number of first and second weight plates for muscle training, the first and second fixing members will not extend too far beyond the gripping assembly, thereby reducing the possibility of the first and second fixing members touching the body and improving the safety of training. Attached Figure Description
[0010] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0011] Figure 1 This is a schematic diagram of the structure of a retractable dumbbell according to an embodiment of the present invention;
[0012] Figure 2 This is a schematic diagram of the structure of a retractable dumbbell according to an embodiment of the present invention;
[0013] Figure 3 This is a schematic diagram of the structure of a retractable dumbbell according to an embodiment of the present invention;
[0014] Figure 4 This is a cross-sectional structural diagram of a retractable dumbbell according to an embodiment of the present invention.
[0015] Figure 5 This is a structural schematic diagram of the first fixing member of the retractable dumbbell according to an embodiment of the present invention. Detailed Implementation
[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.
[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0018] Please refer to Figures 1-5 The retractable dumbbell of this utility model includes: a gripping assembly 100, which includes a handle 110, a first fixing plate 120 and a second fixing plate 130, the first fixing plate 120 and the second fixing plate 130 being fixedly connected to the handle 110 respectively; a first fixing member 200, which includes a first screw 210 and a first clamping plate 220, the first screw 210 being screwed to the handle 110 and extending into the handle 110 from one end, the first clamping plate 220 being directly opposite the first fixing plate 120, and the first screw 210... A plurality of first bell blades 230 pass through the second fixing member 300, which is located between the first clamping plate 220 and the first fixing plate 120. The second fixing member 300 includes a second screw 310 and a second clamping plate 320. The second screw 310 is screwed to the handle 110 and extends into the handle 110 from one end. The second clamping plate 320 is directly opposite the second fixing plate 130. The second screw 310 passes through a plurality of second bell blades 330, which are located between the second clamping plate 320 and the second fixing plate 130.
[0019] In the embodiments of this utility model, the first fixing piece 120 and the second fixing piece 130 are respectively fixedly connected to the handle 110. It is possible, but not limited to, that the first fixing piece 120 and the second fixing piece 130 are respectively welded and fixed to the handle 110 to ensure the connection strength.
[0020] The first fixing member 200 includes a first screw 210 and a first clamping piece 220. The first screw 210 is passed through a plurality of first bell pieces 230, and the first fixing member 200 is rotated so that the first screw 210 extends into the handle 110 until the first clamping piece 220 and the first fixing piece 120 together clamp and fix the first bell pieces 230, thereby achieving the purpose of fixing the first bell pieces 230. If the number of first bell pieces 230 is smaller, the distance between the first fixing piece 120 and the first clamping piece 220 is smaller. If the number of first bell pieces 230 is larger, the distance between the first fixing piece 120 and the first clamping piece 220 is larger.
[0021] The second fixing member 300 includes a second screw 310 and a second clamping piece 320. The second screw 310 passes through a plurality of second bell blades 330, and the second fixing member 300 is rotated so that the second screw 310 extends into the handle 110 until the second clamping piece 320 and the second fixing piece 130 together clamp and fix the second bell blades 330, thereby achieving the purpose of fixing the second bell blades 330. If the number of second bell blades 330 is smaller, the distance between the second fixing piece 130 and the second clamping piece 320 is smaller. If the number of second bell blades 330 is larger, the distance between the second fixing piece 130 and the second clamping piece 320 is larger.
[0022] When using a smaller number of first weight plates 230 and second weight plates 330 for muscle training, the first fixation member 200 and the second fixation member 300 will not extend too far out of the gripping assembly 100, thereby reducing the possibility of the first fixation member 200 and the second fixation member touching the body and improving the safety of training.
[0023] Furthermore, the handle 110 is provided with a screw hole 111 along its radial direction, the screw hole 111 penetrates the handle 110, and the first screw 210 and the second screw 310 are respectively screwed into the screw hole 111.
[0024] In an embodiment of this utility model, a screw hole 111 is provided radially on the handle 110, and the screw hole 111 passes through the handle 110. When fixing the first bell 230, the first screw 210 is passed through the first bell 230 and screwed into the screw hole 111, so that the first screw 210 is screwed to the handle 110. By rotating the first screw 210, the distance between the first fixing piece 120 and the first clamping piece 220 is adjusted, so that the first fixing piece 120 and the first clamping piece 220 can jointly clamp the first bell 230.
[0025] When fixing the second bell shard 330, the second screw 310 is passed through the second bell shard 330 and screwed into the screw hole 111, so that the second screw 310 is screwed into the handle 110. By rotating the second screw 310, the distance between the second fixing plate 130 and the second clamping plate 320 is adjusted, so that the first fixing plate 120 and the first clamping plate 220 can jointly clamp the first bell shard 230.
[0026] Furthermore, the outer side wall of the first clamping piece 220 is provided with a first knurled area 221.
[0027] In this embodiment of the invention, when a user needs to rotate the first fixing member 200 while assembling or disassembling the first bell 230, they can pinch the first knurled area 221 with their fingers to rotate the first clamping piece 220, which in turn rotates the first screw 210, causing the first screw 210 to screw into or out of the handle 110. The first knurled area 221 increases the friction between the finger and the first clamping piece 220, making it easier to rotate the first clamping piece 220 and reducing the difficulty of operation.
[0028] Furthermore, the edge of the first clamping piece 220 facing away from the first fixing piece 120 is provided with a first chamfer 222.
[0029] In an embodiment of this utility model, when a user needs to rotate the first fixing member 200 while assembling or disassembling the first bell 230, they can pinch the first clamping piece 220 with their fingers. By setting the first chamfer 222, the first clamping piece 220 can be prevented from injuring the user, thus ensuring safe use.
[0030] Furthermore, the outer wall of the second clamping piece 320 is provided with a second knurled area 321.
[0031] In this embodiment of the invention, when a user needs to rotate the second fixing member 300 while assembling or disassembling the second bell 330, they can pinch the second knurled area 321 with their fingers to rotate the second clamping piece 320, which in turn rotates the second screw 310, causing the second screw 310 to screw into or out of the handle 110. The second knurled area 321 increases the friction between the finger and the second clamping piece 320, making it easier to rotate the second clamping piece 320 and reducing the difficulty of operation.
[0032] Furthermore, the edge of the second clamping piece 320 facing away from the second fixing piece 130 is provided with a second chamfer.
[0033] In an embodiment of this utility model, when a user needs to rotate the second fixing member 300 while assembling or disassembling the second bell 330, they can pinch the second clamping piece 320 with their fingers. By setting the second chamfer, the second clamping piece 320 can be prevented from injuring the user, thus ensuring safe use.
[0034] Furthermore, the handle 110 is provided with a third knurled area 112.
[0035] In this embodiment of the invention, when the user grips the handle 110, they can grip the third knurled area 112, which can increase the friction between the hands and the grip bar and ensure the safety of training.
[0036] Furthermore, the outer diameters of the first clamping piece 220 and the first fixing piece 120 are both smaller than the outer diameter of the first bell 230, and the outer diameters of the second clamping piece 320 and the second fixing piece 130 are both smaller than the outer diameter of the second bell 330.
[0037] In an embodiment of this utility model, when the retractable dumbbell is placed on the ground, the first barb 230 and the second barb 330 will contact the ground, while the first clamping plate 220, the second clamping plate 320, the first fixing plate 120 and the second fixing plate 130 will not contact the ground, thus preventing deformation of the first clamping plate 220, the second clamping plate 320, the first fixing plate 120 and the second fixing plate 130 and improving the reliability of the retractable dumbbell.
[0038] Furthermore, the handle 110, the first screw 210, and the second screw 310 are coaxial; the first fixing plate 120 and the second fixing plate 130 are perpendicular to the handle 110; the first clamping plate 220 is perpendicular to the first screw 210; and the second clamping plate 320 is perpendicular to the second screw 310. This reasonable structural design ensures the overall reliability of the telescopic dumbbell.
[0039] Furthermore, the first fixing plate 120 and the second fixing plate 130 are located at both ends of the handle 110.
[0040] In the embodiments of this utility model, when the first clamping piece 220 and the first fixing piece 120 clamp and fix the first bell piece 230, the handle 110 is prevented from pressing against the first bell piece 230; when the second clamping piece 320 and the second fixing piece 130 clamp and fix the second bell piece 330, the handle 110 is prevented from pressing against the second bell piece 330, thus ensuring the reliability of clamping and fixing.
[0041] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A telescoping dumbbell, characterized in that, The utility model relates to a kind of handle and its fixing structure, including: A gripping assembly includes a handle, a first fixed sheet and a second fixed sheet, the first fixed sheet and the second fixed sheet are fixedly connected with the handle respectively; A first fixing member includes a first screw rod and a first clamping sheet, the first screw rod is screwed with the handle and extends into the handle from one end of the handle, the first clamping sheet is opposite to the first fixed sheet, the first screw rod passes through a plurality of first bell sheets, and the first bell sheets are located between the first clamping sheet and the first fixed sheet; A second fixing member includes a second screw rod and a second clamping sheet, the second screw rod is screwed with the handle and extends into the handle from one end of the handle, the second clamping sheet is opposite to the second fixed sheet, the second screw rod passes through a plurality of second bell sheets, and the second bell sheets are located between the second clamping sheet and the second fixed sheet.
2. The telescoping dumbbell of claim 1, wherein, The handle is provided with a threaded hole along its radial direction, the threaded hole penetrates the handle, and the first screw rod and the second screw rod are screwed in the threaded hole respectively.
3. The telescoping dumbbell of claim 1, wherein, The outer side wall of the first clamping sheet is provided with a first knurled area.
4. The telescoping dumbbell of claim 1, wherein, The edge of the side of the first clamping sheet away from the first fixed sheet is provided with a first chamfer.
5. The telescoping dumbbell of claim 1, wherein, The outer side wall of the second clamping sheet is provided with a second knurled area.
6. The telescoping dumbbell of claim 1, wherein, The edge of the side of the second clamping sheet away from the second fixed sheet is provided with a second chamfer.
7. The telescoping dumbbell of claim 1, wherein, The handle is provided with a third knurled area.
8. The telescoping dumbbell of claim 1, wherein, The outer diameter of the first clamping sheet and the outer diameter of the first fixed sheet are both smaller than the outer diameter of the first bell sheet, The outer diameter of the second clamping sheet and the outer diameter of the second fixed sheet are both smaller than the outer diameter of the second bell sheet.
9. The telescoping dumbbell of claim 1, wherein, The handle, the first screw rod and the second screw rod are coaxial, the first fixed sheet and the second fixed sheet are perpendicular to the handle respectively, the first clamping sheet is perpendicular to the first screw rod, and the second clamping sheet is perpendicular to the second screw rod.
10. The telescoping dumbbell of claim 1, wherein, The first fixed sheet and the second fixed sheet are located at both ends of the handle.