dumbbell

The detachable dumbbell design solves the problems of high production costs and inconvenience in carrying dumbbells, achieving efficient production and convenient carrying, and improving the user experience and aesthetics.

CN224523873UActive Publication Date: 2026-07-21SHENZHEN OSMARTLINK TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN OSMARTLINK TECH CO LTD
Filing Date
2025-07-16
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing dumbbell production costs are high, efficiency is low, and they are not convenient to carry. In particular, the different mold specifications for heavy dumbbells lead to increased production costs, and one-piece molded dumbbells take up a lot of space, making them unsuitable for carrying around.

Method used

The dumbbell is designed with a detachable structure. The counterweight and the hand handle are detachably connected. The counterweight is replaceable. The hand handle can be mass-produced. The connecting rod and the counterweight are assembled by plugging in the mounting holes. The collar or protrusion marks the force balance area. The encapsulation part protects the appearance and provides protection.

Benefits of technology

It reduces dumbbell production costs, increases production efficiency, reduces the space required for carrying and transporting, and enhances the user experience and aesthetics.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a dumbbell. The dumbbell comprises a hand-held part and weight bodies located at two ends of the hand-held part, and the weight bodies are detachably connected with the hand-held part. The weight bodies are provided with mounting holes, and the hand-held part comprises connecting rods, two ends of the connecting rods are respectively inserted into the mounting holes. In the dumbbell, the weight bodies are detachably connected with the hand-held part, so that the weight bodies and the hand-held part can be respectively manufactured individually, the hand-held part can be mass-produced according to a unified diameter size, and the weight bodies can be replaced with different weight body molds for production according to different weight requirements, the application range is improved, and the dumbbell production efficiency is improved. In addition, since the dumbbell can be split into one connecting rod and two weight bodies, when the dumbbell needs to be packed, carried or transported, the space occupied by the dumbbell is smaller than that of the whole assembled dumbbell, the assembly and disassembly are simple, and the dumbbell is convenient to carry.
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Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a dumbbell. Background Technology

[0002] Dumbbells are a simple piece of equipment for enhancing muscle strength. They are used for muscle strength training and compound muscle movement training. Patients with low muscle strength due to paralysis, pain, or long-term inactivity can use the weight of dumbbells to perform active resistance exercises to train muscle strength.

[0003] Dumbbells in related technologies are typically cast in one piece. Furthermore, the production of heavy-duty dumbbells requires different mold sizes to create a single, complete dumbbell due to variations in the specifications of the counterweight components. This increases manufacturing costs and reduces production efficiency. Additionally, one-piece dumbbells require significant space for packaging, making them inconvenient to carry. Utility Model Content

[0004] In view of this, the present invention aims to at least partially solve one of the problems in the related art. Therefore, the object of the present invention is to provide a dumbbell.

[0005] This application provides a dumbbell. The dumbbell includes a hand grip and counterweights located at both ends of the hand grip, the counterweights being detachably connected to the hand grip; the counterweights are provided with mounting holes, and the hand grip includes a connecting rod, the two ends of which are respectively inserted into the mounting holes.

[0006] In some embodiments, the connecting rod has a protrusion that is a force balance region; and / or the handgrip includes collars disposed at both ends of the connecting rod, the collars being detachably connected to the connecting rod, the collars being used to identify the force balance region of the handgrip.

[0007] In some embodiments, the connecting rod has a groove corresponding to the collar, and the collar is fitted onto one end of the connecting rod and fixed in the groove.

[0008] In some embodiments, the connecting rod is provided with a position mark corresponding to the collar, and the collar is fitted from one end of the connecting rod into the marked area corresponding to the position mark.

[0009] In some embodiments, the collar is an elastic ring or a rigid metal ring.

[0010] In some embodiments, the counterweight includes a main body and an encapsulation portion detachably connected to the main body, wherein the connecting rod passes through the mounting hole of the counterweight and abuts against the encapsulation portion.

[0011] In some embodiments, the encapsulation portion is snap-fitted to the main body portion.

[0012] In some embodiments, the main body portion is provided with a first inclined surface on the periphery of the side away from the handheld portion, which is inclined from the edge of the main body portion toward the center of the main body portion.

[0013] In some embodiments, the main body portion is provided with a second inclined surface on the periphery of the side opposite to the first inclined surface, which is inclined from the edge of the main body portion toward the center of the main body portion, and the inclination angle of the second inclined surface is less than or equal to the inclination angle of the first inclined surface.

[0014] In some embodiments, the cross-sectional shape of the counterweight is circular or polygonal, and the corners of the counterweight are rounded.

[0015] In this application, the counterweight and handhold are detachably connected in the dumbbell, allowing them to be manufactured separately. The handhold can be mass-produced with a uniform diameter, while the counterweight can be produced using different molds to meet varying weight requirements. This expands the applicability and increases dumbbell production efficiency. Furthermore, because the dumbbell can be disassembled into one connecting rod and two counterweights, it requires less space for packing and transporting than a fully assembled dumbbell. Assembly and disassembly are also simple, facilitating portability.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 This is a schematic diagram of the dumbbell structure according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the dumbbell structure according to an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the disassembled dumbbell according to the embodiments of this application;

[0021] Figure 4 This is a schematic diagram of the disassembled dumbbell according to an embodiment of this application. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly, referring to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, or connections capable of communication; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The following disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] Please see Figure 1 and Figure 2 This application provides a dumbbell 100. The dumbbell 100 includes a handle 10 and counterweights 20 located at both ends of the handle 10, the counterweights 20 being detachably connected to the handle 10. Please refer to... Figure 3The counterweight 20 has mounting holes 21, and the handheld part 10 includes a connecting rod 11, with both ends of the connecting rod 11 inserted into the mounting holes 21. The dumbbell 100 of this application can be a regular dumbbell or a heavy-duty dumbbell, and there is no limitation herein.

[0028] Specifically, the counterweight 20 is detachably connected to the handheld part 10, so that the counterweight 20 and the handheld part 10 can be manufactured separately. The handheld part 10 can be mass-produced according to a uniform diameter, and the counterweight 20 can be produced by changing different counterweight molds according to different counterweight requirements, which improves the applicability and increases the production efficiency of dumbbell 100.

[0029] In addition, since the dumbbell 100 of this application can be disassembled into a connecting rod 11 and two counterweights 20, the space occupied when the dumbbell 100 needs to be packed, carried or transported is smaller than that required by the whole assembled dumbbell, and the assembly and disassembly are simple, which is conducive to the portability of the dumbbell 100.

[0030] Furthermore, the two ends of the connecting rod 11 can be respectively inserted into the mounting holes 21 to assemble a complete dumbbell 100 without the need for other fixing parts. The dumbbell 100 is easy to assemble and operate, and the connecting rod 11 of the hand-held part 10 of this application and the mounting holes 21 of the counterweight 20 can be simply and firmly connected to form a complete dumbbell 100.

[0031] The depth of the mounting hole 21 can be less than or equal to the width of the configuration body 20, meaning the mounting hole 21 can penetrate or not penetrate the configuration body 20. When the mounting hole 21 penetrates the configuration body 20, mounting holes 21 are visible at both symmetrical ends of the configuration body 20, simplifying its manufacturing. When the mounting hole 21 does not penetrate the configuration body 20, mounting holes 21 are visible only at the end of the configuration body 20 connected to the connecting rod 11. From the sides away from the connecting rod 11, the mounting holes 21 are not visible on the counterweight body 20, resulting in a more aesthetically pleasing assembled dumbbell 100.

[0032] In some embodiments, the connecting rod 11 is provided with a protrusion 13, which is a force balance area; and / or the handheld part 10 includes a collar 12 disposed at both ends of the connecting rod 11, the collar 12 being detachably connected to the connecting rod 11, and the collar 12 being used to mark the force balance area of ​​the handheld part 10.

[0033] In other words, in one embodiment, the connecting rod 11 of the dumbbell 100 of this application may only have a protrusion 13 to mark the force balance area when the user holds the dumbbell 100, so that the counterweights 20 located at both ends of the connecting rod 11 can be balanced, so that when the user holds the force balance area, the dumbbell 100 will not tilt to one end, which is beneficial to improving the user's dumbbell usage experience.

[0034] In another embodiment, the connecting rod 11 of the dumbbell 100 of this application may only have a collar 12 for marking the force balance area when the user holds the dumbbell 100, so that the counterweights 20 located at both ends of the connecting rod 11 can be balanced, so that when the user holds the force balance area, the dumbbell 100 will not tilt to one end, which is beneficial to improving the user's dumbbell usage experience.

[0035] In yet another embodiment, such as Figure 2 or Figure 3 As shown, the connecting rod 11 of the dumbbell 100 of this application may not only have a protrusion 13, but may also have an additional collar 12 to mark the force balance area when the user holds the dumbbell 100, so that the counterweights 20 located at both ends of the connecting rod 11 can be balanced, so that when the user holds the force balance area, the dumbbell 100 will not tilt to one end, which is beneficial to improving the user's dumbbell usage experience.

[0036] The protrusion 13 and the collar 12 serve to mark the force balance area of ​​the hand grip 10. This means that the position of the protrusion 13 and the collar 12 allows the user to quickly and easily align their hand with the middle force balance area of ​​the connecting rod 11, so that the counterweights 20 located at both ends of the connecting rod 11 can be balanced. This ensures that when the user grips the force balance area, the dumbbell 100 will not tilt to one side, which helps to improve the user's dumbbell usage experience.

[0037] It should be noted that the material of the collar 12 can be the same as or different from that of the connecting rod 11; the collar 12 simply serves an identification function. Additionally, a silicone protective sleeve can be added to the center of the force balance area of ​​the dumbbell 100 to improve the user's grip on the dumbbell 100.

[0038] In addition, by inserting both ends of the connecting rod 11 into the mounting holes 21 of the counterweight 20, the counterweight 20 is firmly fixed to both ends of the handheld part 10. The design of the collar 12 can limit the position occupied by the counterweight 20 on the connecting rod 11, thus ensuring the space for the user to hold the dumbbell 100.

[0039] Please see Figure 3 and Figure 4 In some embodiments, the connecting rod 11 is provided with a groove 111 corresponding to the collar 12, and the collar 12 is inserted into one end of the connecting rod 11 and fixed in the groove 111.

[0040] Specifically, the depth of the groove 111 can be greater than or equal to the thickness of the collar 12. When the depth of the groove 111 is equal to the thickness of the collar 12, the surface of the connecting rod 11 with the collar 12 is smooth and aesthetically pleasing. When the depth of the groove 111 is greater than the thickness of the collar 12, the surface of the connecting rod 11 with the collar 12 is lower than the surface without the collar 12, forming a groove 111 that is high on both sides and low in the middle. This helps visually blind people to perceive the position of the collar 12 by touch, allowing them to quickly find the area of ​​hand grip balance and improving the dumbbell usage experience for visually blind users.

[0041] like Figure 4 As shown, the groove 111 in this application can also be a position area formed by the first surface height formed at both ends of the protrusion 13 and the second surface being flush with the surface of other areas of the connecting rod 11. Alternatively, the groove 111 can also be a position area formed by the first surface height formed at both ends of the protrusion 13 being higher than the surface of other areas of the connecting rod 11 and lower than the first surface. In this way, the connecting rod 11 of the dumbbell 100 of this application can be provided with a groove 111, and the collar 12 can be conveniently and quickly fitted onto the connecting rod 11 through the position of the groove 111.

[0042] In other embodiments of this application, the connecting rod 11 is provided with a position mark corresponding to the collar 12, and the collar 12 is inserted from one end of the connecting rod 11 into the marked area corresponding to the position mark.

[0043] Specifically, the location marker can be a line segment marker, a scale marker, or a text marker; there are no restrictions on this.

[0044] That is, the connecting rod 11 of this application may not have a groove 111, but only a position mark is engraved to mark the position where the collar 12 needs to be put on the connecting rod 11. The collar 12 can be put on the connecting rod 11 more conveniently and quickly through the marked area corresponding to the position mark.

[0045] In some embodiments, the collar 12 is an elastic ring or a rigid metal ring.

[0046] Specifically, when the collar 12 is a rigid metal ring, the friction between the collar 12 and the connecting rod 11 is strong, which can make the collar 12 firmly fixed in the corresponding position area of ​​the connecting rod 11.

[0047] When the collar 12 is an elastic ring, the collar 12 can be further elastically fixed to the connecting rod 11 by the elastic force, so that the collar 12 can be more firmly fixed in the corresponding position area of ​​the connecting rod 11.

[0048] In other embodiments of this application, the shape of the collar 12 is adapted to the cross-sectional shape of the connecting rod 11. For example, if the cross-sectional shape of the connecting rod 11 is circular, the collar 12 is circular; if the cross-sectional shape of the connecting rod 11 is square, the collar 12 is square; if the cross-sectional shape of the connecting rod 11 is polygonal, the collar 12 is polygonal.

[0049] In other embodiments of this application, the thickness of the collar 12 is less than or equal to 2 mm. That is to say, the thickness of the collar 12 in this application can be made relatively thin, so that the weight of the collar 12 can be ignored.

[0050] Please refer to the following: Figure 2 , Figure 3 and Figure 4 In some embodiments, the counterweight 20 includes a main body 22 and an encapsulation part 23 detachably connected to the main body 22, and the connecting rod 11 passes through the mounting hole 21 of the counterweight 20 and abuts against the encapsulation part 23.

[0051] Specifically, the encapsulation part 23 is detachably connected to the main body part 22, facilitating the installation and replacement of the encapsulation part 23 of the dumbbell 100 of this application. That is, the encapsulation part 23 on the counterweight 20 can act as a cover, preventing the connecting rod 11 from being directly exposed from the side away from the handgrip 10, thus affecting the aesthetics of the dumbbell 100. At the same time, it can protect the mounting hole 21 from rainwater, providing protection against corrosion and dust for the connecting rod 11.

[0052] In addition, the packaging part 23 of this application may be provided with a weight mark or decorative symbol on the side away from the hand-held part 10 or on other sides of the counterweight 20. The weight mark or decorative symbol not only makes it easier for users to identify the weight of the dumbbell, but also enhances the appearance of the dumbbell 100.

[0053] Alternatively, when the counterweight 20 does not include the encapsulation part 23, i.e., when the counterweight 20 is integrally molded, a weight mark or decorative symbol may be provided on the side of the counterweight 20 away from the handheld part 10. This weight mark or decorative symbol not only makes it easier for the user to identify the weight of the dumbbell but also enhances the aesthetic appearance of the dumbbell 100. In other embodiments of this application, a weight mark or decorative symbol may also be provided on the connecting rod 11.

[0054] In some embodiments, the encapsulation part 23 is snapped together with the main body part 22. That is, the main body part 22 of the counterweight 20 may have a slot 221 on the side away from the hand-held part 10, and a slot hole 2211 may be provided inside the slot 221. The encapsulation part 23 may have a locking post 231, which can engage with the locking post 231 to securely snap together with the main body part 22, and facilitate the disassembly of the encapsulation part 23.

[0055] Please see Figure 1 In some embodiments, the main body 22 is provided with a first inclined surface 222 on the side away from the handheld part 10, which is inclined from the edge of the main body towards the center of the main body 22.

[0056] Specifically, the main body 22 of the dumbbell 100 has a first inclined surface 222, which can better accommodate the palm of the exerciser when performing a single upward press and increase the contact area.

[0057] In addition, such as Figure 4 As shown, when the first inclined surface 222 can be surrounded to form a sealing opening 223, the sealing part 23 can be directly fixedly installed in the sealing opening 223 by interference fit, and the sealing part 23 is installed more firmly.

[0058] In some embodiments, the main body 22 is provided with a second inclined surface 224 on the periphery of the side opposite to the first inclined surface 222, which is inclined from the edge of the main body 22 toward the center of the main body 22, and the inclination angle of the second inclined surface 224 is greater than or equal to the inclination angle of the first inclined surface 222.

[0059] Specifically, the tilt angle of the second inclined surface 224 is equal to the tilt angle of the first inclined surface 222. This means that the counterweight 20 of the dumbbell 100 of this application can use a symmetrical oblique angle design, making the dumbbell 100 more aesthetically pleasing.

[0060] like Figure 1 As shown, the tilt angle a of the second tilting surface 224 is greater than the tilt angle b of the first tilting surface 222. This means that the counterweight 20 of the dumbbell 100 of this application can use an asymmetrical oblique angle design instead of a traditional mechanical symmetrical design. This can break the stereotype brought about by the mechanical symmetrical design and make the shape design of the dumbbell 100 more flexible.

[0061] Understandably, although the tilt angles of the inclined surfaces on both sides of the counterweight 20 are asymmetrical in some areas, the overall visual weight of the dumbbell 100 is reasonably distributed (such as the contrast of the diagonal lines and angles) to achieve overall harmony, so that the dumbbell 100 of this application can improve the overall stability of the dumbbell 100 while using the asymmetrical oblique angle design.

[0062] In some implementations, the tilt angle of the second tilt surface 224 can be designed to match the tilt angle of the human shoulder muscle structure, so that the dumbbell 100 can be fixed on the human shoulder and not easily slip.

[0063] In some embodiments, the counterweight 20 has a circular or polygonal cross-sectional shape, and the corners of the counterweight 20 are rounded.

[0064] Specifically, the edges and corners of the counterweight 20 are all rounded, which reduces the safety hazards caused by sharp edges and corners, and also has a better aesthetic appearance.

[0065] In particular, the part of the counterweight 20 that contacts the human body, such as the part where the second inclined surface 224 connects with the connecting rod 11, can be designed with a larger rounded corner to accommodate the angle required when the exerciser's hand is bent, and to prevent the hand from being scratched by the side of the counterweight 20.

[0066] When the counterweight 20 is arranged in a polygonal shape, it can prevent the dumbbell 100 from moving when it is stationary, thus improving the safety of using the dumbbell 100.

[0067] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A dumbbell, characterized in that, The dumbbell includes a handpiece and counterweights located at both ends of the handpiece. The counterweights are detachably connected to the handpiece. The counterweights are provided with mounting holes. The handpiece includes a connecting rod, and the two ends of the connecting rod are respectively inserted into the mounting holes.

2. The dumbbell according to claim 1, characterized in that, The connecting rod is provided with a protrusion, which is a force balance region; and / or The handheld part includes collars disposed at both ends of the connecting rod, the collars being detachably connected to the connecting rod, and the collars being used to mark the force balance area of ​​the handheld part.

3. The dumbbell according to claim 2, characterized in that, The connecting rod is provided with a groove corresponding to the collar, and the collar is inserted into one end of the connecting rod and fixed in the groove.

4. The dumbbell according to claim 2, characterized in that, The connecting rod is provided with a position mark corresponding to the collar, and the collar is inserted into the marked area corresponding to the position mark from one end of the connecting rod.

5. The dumbbell according to claim 3 or 4, characterized in that, The collar is an elastic ring or a rigid metal ring.

6. The dumbbell according to claim 1, characterized in that, The counterweight includes a main body and an encapsulation part detachably connected to the main body, and the connecting rod passes through the mounting hole of the counterweight and abuts against the encapsulation part.

7. The dumbbell according to claim 6, characterized in that, The encapsulation part is snapped together with the main body part.

8. The dumbbell according to claim 6, characterized in that, The main body portion has a first inclined surface on the side away from the handheld portion, which is inclined from the edge of the main body portion toward the center of the main body portion.

9. The dumbbell according to claim 8, characterized in that, The main body portion is provided with a second inclined surface around the side opposite to the first inclined surface, which is inclined from the edge of the main body portion toward the center of the main body portion. The inclination angle of the second inclined surface is less than or equal to the inclination angle of the first inclined surface.

10. The dumbbell according to claim 1, characterized in that, The cross-sectional shape of the counterweight is circular or polygonal, and the corners of the counterweight are all rounded.