Firmly-connected dumbbell

Abstract

The utility model relates to the field of fitness equipment, in particular to a dumbbell stable in connection, which comprises a handle, two groups of dumbbell pieces and an assembling mechanism used for assembling and connecting a specified number of dumbbell pieces and the handle, and each group of dumbbell pieces comprises a main dumbbell piece and an auxiliary dumbbell piece; in the direction away from the handle, the main dumbbell pieces and the auxiliary dumbbell pieces are sequentially arranged, the main dumbbell pieces are fixedly connected to the two ends of the handle, the auxiliary dumbbell pieces are detachably connected with the main dumbbell pieces, notches are formed in the auxiliary dumbbell pieces, buckling pieces are fixedly arranged on the auxiliary dumbbell pieces, and each buckling piece comprises a fixing plate, a connecting part and a hook plate; when the adjacent auxiliary dumbbell pieces are buckled, the edge of the notch in one dumbbell piece is clamped between the hook plate and the fixing plate which are connected to the other dumbbell piece; the dumbbell solves the problem that the connection state between the dumbbell pieces is not stable enough.

Description

Technical Field

[0001] The utility model relates to the field of fitness equipment, in particular to a dumbbell with a stable connection. Background Art

[0002] Dumbbells are a common type of fitness equipment, used for users' chest extension training, biceps training and deltoid muscle training, etc. Now there are dumbbells with adjustable exercise weights on the market.

[0003] Referring to the utility model patent with patent number 202321376736.X, named Dumbbell, each dumbbell piece is provided with a buckle, and the buckles on the dumbbell pieces in the same group are snapped together, and the buckles are directly snapped together with the dumbbell pieces. The connection between the dumbbell pieces by snapping together through the buckles is not strong enough, and the dumbbell pieces are prone to loosening from each other during use, resulting in a poor user experience. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a dumbbell with stable connection, which solves the problem that the connection between dumbbell plates is not stable enough.

[0005] The technical scheme adopted by the utility model is: a dumbbell with stable connection, comprising a handle and two groups of dumbbell plates and an assembly mechanism for assembling and connecting a specified number of dumbbell plates with the handle, each group of dumbbell plates comprising a main dumbbell plate and a secondary dumbbell plate; in a direction away from the handle, the main dumbbell plates and the secondary dumbbell plates are arranged in sequence, the main dumbbell plates are fixedly connected to the two ends of the handle, the secondary dumbbell plates are detachably connected to the main dumbbell plates, the secondary dumbbell plates are provided with notches, the secondary dumbbell plates are fixedly provided with snap fasteners, the snap fasteners comprise a fixing plate, a connecting portion and a hook plate; when adjacent secondary dumbbell plates are buckled, the edge of the notch on one pair of dumbbell plates is clamped between the hook plate and the fixing plate connected to the other pair of dumbbell plates.

[0006] Through the above technical solution, the fasteners on one pair of dumbbell plates use the fixing plate and the hook plate to clamp the notched edges on the other pair of dumbbell plates. When a shaking force is generated between adjacent pair of dumbbell plates, the fasteners directly transmit the force to the pair of dumbbell plates. The connection state of the pair of dumbbell plates after being assembled with each other is more stable, and the connection state is very stable, which makes the use experience better.

[0007] Furthermore, the auxiliary dumbbell plates include an integrally formed base plate and a first step portion, the thickness of the first step portion is less than the thickness of the base plate, and the recess is arranged at the edge of the first step portion; when adjacent auxiliary dumbbell plates are buckled, the first step portion on one pair of dumbbell plates is clamped between the hook plate and the fixed plate connected to the other pair of dumbbell plates.

[0008] Through the above technical solution, the first step portion is clamped between the fixed plate and the hook plate. The design that the thickness of the first step portion is smaller than the thickness of the base plate saves the space occupied by the auxiliary dumbbell plates when they are connected with the fasteners, facilitates the storage and placement of each dumbbell plate, and makes the structure of each fastener connecting the dumbbell plates more compact.

[0009] Furthermore, a first section is provided on the auxiliary dumbbell plate, and the first section is connected to the first step portion; a fixing protrusion is provided on the fixing plate, and the number of fixing protrusions on a single snap-fit ​​component is two and are respectively located on both sides of the snap-fit ​​component, and the fixing protrusion abuts against the first section.

[0010] Through the above technical solution, the fixing protrusions on both sides are limited by the abutment of the first section, so as to prevent the buckle from shifting or shaking in the direction of the two fixing protrusions relative to the auxiliary dumbbell plate, thereby making the connection between the buckle and the auxiliary dumbbell plate more secure.

[0011] Furthermore, the snap fastener includes a second step portion integrally formed with the substrate, the thickness of the second step portion is less than the thickness of the substrate, a second section is formed between the second step portion and the substrate, the second section is abutted against the edge of the fixed plate to limit the position, and the fixed plate is fitted with the second step portion.

[0012] Through the above technical solution, the edge of the fixing plate is limited by the abutment of the second section, which further increases the stability of the connection between the buckle and the auxiliary dumbbell plate.

[0013] Furthermore, the surface of the substrate is flush with the surface of the fixing plate.

[0014] Through the above technical solution, when two adjacent auxiliary dumbbell plates are engaged with each other, the side surface of one pair of dumbbell plates and the fixed plate connected thereto are simultaneously attached to a side surface of the other pair of dumbbell plates, so that when the two adjacent auxiliary dumbbell plates and the fasteners thereon are assembled with each other, the contact area between them is larger and the connection is more stable.

[0015] Furthermore, a strip-shaped arc surface is provided on one side of the connecting portion facing the central portion of the auxiliary dumbbell plate, and the strip-shaped arc surface is adapted to the shape of the notch.

[0016] Through the above technical solution, the connection between the buckle and the notch is made more compact and firm.

[0017] Furthermore, the hook plate and the connecting portion are trapezoidal as a whole, the hook plate is provided with a narrow end, the connecting portion is provided with a wide end, the narrow end is closer to the central part of the auxiliary dumbbell plate than the wide end, and the buckle includes an assembly groove, which is adapted to the shape of the connecting portion.

[0018] Through the above technical solution, the shapes of the hook plate and the connecting portion are reasonably arranged, and the narrow end is easier to be inserted into the assembly groove, so that the buckle and the auxiliary dumbbell plate are easier to assemble.

[0019] Furthermore, two inner side surfaces of the assembly groove on the buckle are inclined toward the notch on the auxiliary dumbbell plate connected to the buckle, and the hook plate together with the two side surfaces on the connecting portion are adapted to the two side surfaces of the assembly groove.

[0020] Through the above technical solution, when two adjacent pairs of dumbbell plates are snap-fitted and assembled with each other, the connecting portion on one pair of dumbbell plates is squeezed by the other pair of dumbbell plates and the side of the assembly groove, and the adjacent buckle parts are connected more tightly and firmly.

[0021] Furthermore, it also includes a screw, the material of the snap-fit ​​piece is metal or alloy, the fixing plate is provided with a through hole, the auxiliary dumbbell plate is provided with a screw hole, and the screw passes through the through hole and is screwed and fixed to the screw hole.

[0022] Through the above technical solution, the installation and fixation of the fixing plate and the auxiliary dumbbell plates are very convenient, and the buckle parts are made of hard material and have the advantages of durability and high strength.

[0023] Furthermore, the assembly mechanism includes a slide rail, a sliding member and a slide rod. The dumbbell plate is provided with a through hole. The two ends of the slide rail are respectively fixedly connected to the two main dumbbell plates. The slide rail is slidably connected to the sliding member. The sliding member is fixedly connected to the slide rod. The slide rod can be selectively inserted into several of the through holes.

[0024] Through the above technical solution, the weight of the dumbbell can be adjusted by driving the sliding member to allow the sliding rod to pass through a corresponding number of through holes, which is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the utility model when the auxiliary dumbbell plate is not assembled;

[0028] Figure 3 A schematic diagram of a group of dumbbell plates of the utility model;

[0029] Figure 4It is a schematic diagram of the auxiliary dumbbell plate and the fastener thereon of the utility model;

[0030] Figure 5 This is one of the exploded views of the utility model;

[0031] Figure 6 It is a schematic diagram of the auxiliary dumbbell plate of the utility model;

[0032] Figure 7 is a thickness comparison diagram of the first step portion, the second step portion and the substrate;

[0033] Figure 8 This is one of the schematic diagrams of the fastener of the utility model;

[0034] Fig. 9 This is the second schematic diagram of the fastener of the utility model;

[0035] Fig.10 This is the second exploded view of the utility model;

[0036] Fig.11 This is a schematic diagram of the base structure of the utility model;

[0037] The utility model number information is as follows:

[0038] 1. handle; 2. dumbbell plate; 3. main dumbbell plate; 4. auxiliary dumbbell plate; 5. last dumbbell plate; 6. buckle; 7. notch; 8. base plate; 9. first step portion; 10. first section; 11. second step portion; 12. second section; 13. screw; 14. screw hole; 15. slide rail; 16. slide member; 17. slide bar; 18. perforation; 19. base; 20. receiving opening; 601. fixing plate; 602. connecting portion; 603. hook plate; 604. fixing protrusion; 605. strip arc surface; 606. narrow end; 607. wide end; 608. assembly groove; 609. through hole;

[0039] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0043] refer to Figure 1-Figure 9 A dumbbell with a stable connection comprises a handle 1 and two groups of dumbbell plates 2 and an assembly mechanism for assembling and connecting a specified number of dumbbell plates with the handle 1, wherein each group of dumbbell plates 2 comprises a main dumbbell plate 3 and a secondary dumbbell plate 4; in a direction away from the handle 1, the main dumbbell plates 3 and the secondary dumbbell plates 4 are arranged in sequence, the main dumbbell plates 3 are fixedly connected to the two ends of the handle 1, and the secondary dumbbell plates 4 are detachably connected to the main dumbbell plates 3, and a notch 7 is provided on the secondary dumbbell plates 4, and a fastener 6 is fixedly provided on the secondary dumbbell plates 4, and the fastener 6 comprises a fixing plate 601, a connecting portion 602 and a hook plate 603; when adjacent secondary dumbbell plates 4 are buckled, the edge of the notch 7 on one pair of dumbbell plates 4 is clamped between the hook plate 603 and the fixing plate 601 connected to the other pair of dumbbell plates 4.

[0044] The fasteners 6 on one pair of dumbbell plates 4 clamp the edges of the notches 7 on another pair of dumbbell plates 4 using the fixing plate 601 and the hook plate 603. When a shaking force is generated between adjacent pair of dumbbell plates 4, the fasteners 6 directly transmit the force to the pair of dumbbell plates 4. The connection state of the pair of dumbbell plates 4 after being assembled with each other is more stable, and the connection state is very stable, which makes the user experience better.

[0045] Each group of dumbbell pieces 2 also includes a last dumbbell piece 5, and in the direction away from the handle 1, the main dumbbell pieces 3, the auxiliary dumbbell pieces 4 and the last dumbbell piece 5 are arranged in sequence;

[0046] Preferably, the main dumbbell pieces 3 and the auxiliary dumbbell pieces 4 are detachably connected via fasteners 6; one fastener 6 is connected to each main dumbbell piece 3, and one fastener 6 is connected to each final dumbbell piece 5.

[0047] There are two fasteners 6 and two notches 7 connected to each auxiliary dumbbell plate 4. On the auxiliary dumbbell plate 4, the two fasteners 6 on each auxiliary dumbbell plate 4 are located on two opposite sides of the auxiliary dumbbell plate 4, and the two notches 7 on each auxiliary dumbbell plate 4 are located on two opposite sides of the auxiliary dumbbell plate 4. The hook plates 603 connected to the two fasteners 6 on the same auxiliary dumbbell plate 4 are located on two opposite sides of the auxiliary dumbbell plate 4.

[0048] refer to Fig.11 The utility model further comprises a base 19, on which two receiving openings 20 for accommodating a group of dumbbell plates 2 are correspondingly arranged.

[0049] refer to Figure 5-Figure 7 The auxiliary dumbbell pieces 4 include an integrally formed base plate 8 and a first step portion 9, the thickness of the first step portion 9 is less than the thickness of the base plate 8, and the notch 7 is arranged at the edge of the first step portion 9; when the adjacent auxiliary dumbbell pieces 4 are buckled, the first step portion 9 on one pair of dumbbell pieces 4 is clamped between the hook plate 603 and the fixing plate 601 connected to the other pair of dumbbell pieces 4.

[0050] The first step portion 9 is clamped between the fixed plate 601 and the hook plate 603. The design that the thickness of the first step portion 9 is smaller than the thickness of the base plate 8 saves the space occupied by the auxiliary dumbbell plate 4 and the fastener 6 when they are fastened together, facilitates the storage and placement of each dumbbell plate 2, and makes the structure of each fastener 6 connecting the dumbbell plate 2 more compact.

[0051] The auxiliary dumbbell plate 4 is provided with a first section 10, and the first section 10 is connected to the first step portion 9; the fixing plate 601 is provided with a fixing protrusion 604, and the number of the fixing protrusions 604 on a single snap-fit ​​member 6 is two and they are respectively located on both sides of the snap-fit ​​member 6, and the fixing protrusion 604 is in contact with the first section 10.

[0052] The fixing protrusions 604 on both sides are limited by the abutment of the first section 10, so as to prevent the buckle 6 from deviating or shaking in the direction of the two fixing protrusions 604 relative to the auxiliary dumbbell plate 4, thereby making the connection between the buckle 6 and the auxiliary dumbbell plate 4 more secure.

[0053] The snap fastener 6 includes a second step portion 11 integrally formed with the substrate 8, the thickness of the second step portion 11 is less than the thickness of the substrate 8, a second section 12 is formed between the second step portion 11 and the substrate 8, the second section 12 is abutted against the edge of the fixing plate 601 for limiting position, and the fixing plate 601 is fitted with the second step portion 11.

[0054] The edge of the fixing plate 601 is abutted and limited by the second section 12 , which further increases the stability of the connection between the buckle 6 and the auxiliary dumbbell plate 4 .

[0055] In the present invention, the thickness of the substrate 8 is greater than the thickness of the second step portion 11 and greater than the thickness of the first step portion 9; the thickness of the first step portion 9 is a, the thickness of the second step portion 11 is b, and the thickness of the third step portion is c. Figure 7 .

[0056] The surface of the substrate 8 is flush with the surface of the fixing plate 601 .

[0057] When two adjacent auxiliary dumbbell plates 4 are engaged with each other, the side surface of one pair of dumbbell plates 4 and the fixing plate 601 connected thereto simultaneously fit one side surface of the other pair of dumbbell plates 4, so that when the two adjacent auxiliary dumbbell plates 4 and the fasteners 6 thereon are assembled with each other, the contact area between them is larger and the connection is more stable.

[0058] A strip-shaped arc surface 605 is provided on one side of the connecting portion 602 facing the central portion of the auxiliary dumbbell plate 4 , and the strip-shaped arc surface 605 is adapted to the shape of the notch 7 .

[0059] This makes the connection between the snap member 6 and the notch 7 more compact and firm.

[0060] The hook plate 603 and the connecting portion 602 are trapezoidal in shape as a whole. A narrow end 606 is provided on the hook plate 603, and a wide end 607 is provided on the connecting portion 602. The narrow end 606 is closer to the central part of the auxiliary dumbbell plate 4 than the wide end 607. The buckle 6 includes an assembly groove 608, and the assembly groove 608 is adapted to the shape of the connecting portion 602.

[0061] The shapes of the hook plate 603 and the connecting portion 602 are reasonably arranged, and the narrow end 606 is easier to be inserted into the assembly groove 608, so that the buckle 6 and the auxiliary dumbbell plate 4 are easier to be assembled.

[0062] The two inner side surfaces of the assembly groove 608 on the buckle 6 are inclined toward the notch 7 on the auxiliary dumbbell plate 4 connected to the buckle 6 , and the hook plate 603 together with the two side surfaces on the connecting portion 602 are adapted to the two side surfaces of the assembly groove 608 .

[0063] When two adjacent pairs of dumbbell plates 4 are mutually engaged and assembled, the connecting portion 602 on one pair of dumbbell plates 4 is squeezed by the other pair of dumbbell plates 4 and the side of the assembly groove 608, and the adjacent buckle members 6 are connected more tightly and firmly.

[0064] The utility model further comprises a screw 13 , the buckle 6 is made of metal or alloy, a through hole 609 is provided on the fixing plate 601 , a screw hole 14 is provided on the auxiliary dumbbell plate 4 , and the screw 13 passes through the through hole 609 and is screwed and fixed to the screw hole 14 .

[0065] The fixing plate 601 and the auxiliary dumbbell plate 4 are very convenient to install and fix. The buckle 6 is made of hard material and has the advantages of durability and high strength.

[0066] The main dumbbell piece 3 and the final dumbbell piece 5 are also provided with screw holes 14 for installing and fixing the fastener 6 .

[0067] Preferably, the entire material of the fastener 6 is cast iron.

[0068] refer to Fig.10 The assembly mechanism includes a slide rail 15, a sliding member 16 and a sliding rod 17. The dumbbell plate 2 is provided with a through hole 18. The two ends of the slide rail 15 are respectively fixedly connected to the two main dumbbell plates 3. The slide rail 15 is slidably connected to the sliding member 16. The sliding member 16 is fixedly connected to the sliding rod 17. The sliding rod 17 can be selectively inserted into a plurality of the through holes 18.

[0069] The weight of the dumbbell can be adjusted by driving the sliding member 16 to allow the sliding rod 17 to pass through a corresponding number of through holes 18, which is very convenient to use.

[0070] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A firmly connected dumbbell, comprising a handle (1) and two sets of dumbbell plates (2) and an assembly mechanism for assembling and connecting a specified number of dumbbell plates to the handle (1), characterized in that: Each group of dumbbell plates (2) comprises a main dumbbell plate (3) and a secondary dumbbell plate (4); in a direction away from the handle (1), the main dumbbell plates (3) and the secondary dumbbell plates (4) are arranged in sequence, the main dumbbell plates (3) are fixedly connected to the two ends of the handle (1), the secondary dumbbell plates (4) are detachably connected to the main dumbbell plates (3), the secondary dumbbell plates (4) are provided with notches (7), the secondary dumbbell plates (4) are fixedly provided with fasteners (6), the fasteners (6) comprise a fixing plate (601), a connecting portion (602) and a hook plate (603); when adjacent secondary dumbbell plates (4) are buckled, the edge of the notch (7) on one pair of dumbbell plates (4) is clamped between the hook plate (603) and the fixing plate (601) connected to the other pair of dumbbell plates (4).

2. A dumbbell with a stable connection according to claim 1, characterized in that: The auxiliary dumbbell pieces (4) comprise an integrally formed base plate (8) and a first step portion (9); the thickness of the first step portion (9) is less than the thickness of the base plate (8); and the notch (7) is arranged at the edge of the first step portion (9); when adjacent auxiliary dumbbell pieces (4) are buckled, the first step portion (9) on one pair of dumbbell pieces (4) is clamped between a hook plate (603) and a fixing plate (601) connected to another pair of dumbbell pieces (4).

3. A dumbbell with a stable connection according to claim 2, characterized in that: The auxiliary dumbbell plate (4) is provided with a first section (10), and the first section (10) is connected to the first step portion (9); the fixing plate (601) is provided with a fixing protrusion (604), and the number of the fixing protrusions (604) on a single snap-fit ​​component (6) is two and they are respectively located on two sides of the snap-fit ​​component (6), and the fixing protrusions (604) are in contact with the first section (10).

4. A dumbbell with a stable connection according to claim 2 or 3, characterized in that: The snap fastener (6) comprises a second step portion (11) integrally formed with the base plate (8); the thickness of the second step portion (11) is less than the thickness of the base plate (8); a second section (12) is formed between the second step portion (11) and the base plate (8); the second section (12) abuts against an edge of the fixing plate (601) to limit the position; the fixing plate (601) fits the second step portion (11).

5. A dumbbell with a stable connection according to claim 4, characterized in that: The surface of the base plate (8) is flush with the surface of the fixing plate (601).

6. A firmly connected dumbbell according to claim 1 or 2 or 3 or 5, characterized in that: A strip-shaped arc surface (605) is provided on one side of the connecting portion (602) facing the central part of the auxiliary dumbbell plate (4), and the strip-shaped arc surface (605) is adapted to the shape of the recess (7).

7. A dumbbell with a stable connection according to claim 6, characterized in that: The hook plate (603) and the connecting portion (602) are trapezoidal in shape as a whole; a narrow end (606) is provided on the hook plate (603); a wide end (607) is provided on the connecting portion (602); the narrow end (606) is closer to the central part of the auxiliary dumbbell plate (4) than the wide end (607); the buckle (6) includes an assembly groove (608), and the assembly groove (608) is adapted in shape to the connecting portion (602).

8. A dumbbell with a stable connection according to claim 7, characterized in that: The two inner side surfaces of the assembly groove (608) on the buckle (6) are inclined toward the notch (7) on the auxiliary dumbbell plate (4) connected to the buckle (6), and the hook plate (603) together with the two side surfaces on the connecting portion (602) are adapted to the two side surfaces of the assembly groove (608).

9. A firmly connected dumbbell according to claim 1 or 2 or 3 or 5 or 7 or 8, characterized in that: The dumbbell (6) further comprises a screw (13), the buckle (6) is made of metal or alloy, the fixing plate (601) is provided with a through hole (609), the auxiliary dumbbell plate (4) is provided with a screw hole (14), and the screw (13) passes through the through hole (609) and is screwed and fixed to the screw hole (14).

10. A dumbbell with a stable connection according to claim 9, characterized in that: The assembly mechanism comprises a slide rail (15), a sliding member (16) and a slide rod (17); the dumbbell plate (2) is provided with a through hole (18); the two ends of the slide rail (15) are respectively fixedly connected to the two main dumbbell plates (3); the slide rail (15) is slidably connected to the sliding member (16); the sliding member (16) is fixedly connected to the slide rod (17); and the slide rod (17) can be selectively inserted into a plurality of the through holes (18).

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