A laterally adjustable dumbbell

Abstract

A laterally adjustable barbell comprising a handle assembly and several weight plates on both sides of the handle assembly, characterized in that the handle assembly includes a handle housing, a support, and fixed base plates attached to both ends of the handle housing and the support. The support is located below the handle housing; the support is a flat, cuboid structure; the two short sides of the support are each connected to the corresponding fixed base plates; continuous slide rails are provided internally in the two long side edges of the support; and a sliding adjustment slide is provided in the slide rails. The fixed base plate is provided with a recess corresponding to the adjustment slide, and the adjustment slide can slide out of the slide rail and through the recess.

Description

Technical field

[0001] The utility model relates to the technical field of fitness equipment, in particular a laterally adjustable dumbbell with an adjustable structure. State of the art

[0002] Among the fitness equipment of current technology, dumbbells are the most frequently used devices for arm training. To allow for different training intensities, an adjustment mechanism is generally required to change the weight of the dumbbell. The currently commonly used adjustment mechanism involves increasing or decreasing the number of weight plates. The weight plates are usually mounted using plug-in or screw connections. Both of these methods have the disadvantage that removing or adding weight plates is time-consuming, cumbersome, and impractical. Therefore, the dumbbell development department currently needs to solve the technical problem of how to develop a more convenient, adjustable, and user-friendly, yet structurally stable and safe, mounting mechanism for weight plates. Content of the invention

[0003] To remedy the shortcomings of the existing technology, the utility model offers a laterally adjustable barbell which, by improving the mounting structure of the barbell, realizes the adjustment structure of the barbell weight and has the advantages of convenient adjustment and use, structural stability and safety.

[0004] The technical solution by which the utility model solves its technical problem is as follows: A laterally adjustable barbell comprising a handle assembly and several weight plates on both sides of the handle assembly, characterized in that the handle assembly comprises a handle housing, a support and fixed base plates attached to both ends of the handle housing and support.

[0005] The support is located below the handle housing; the support is a flat, cuboid structure; the two short sides of the support are each connected to the corresponding fixed base plates; continuous sliding rails are mounted inside the two long side edges of the support; a sliding adjustment slide is provided in the sliding rails; the fixed base plate has a recess hole that corresponds to the adjustment slide, and the adjustment slide can slide out of the sliding rail and through the recess hole.

[0006] The center of the top of the carrier is provided with a recessed groove that runs parallel to the handle housing, with the recessed groove being located directly below the handle housing.

[0007] The inner surface of the fixed base plate is provided with a limiting groove that corresponds to the shape of the handle housing and / or the carrier, and the end part of the handle housing or the carrier is inserted into the limiting groove and connected and fastened to the fixed base plate.

[0008] The limiting groove has a recessed hole for passing the adjusting slide through the fixed base plate.

[0009] A spring pin assembly is attached to the adjusting carriage and connected to it, and the spring pin assemblies are guided through the adjusting carriage.

[0010] Each of the two side walls of the carrier has operating openings distributed along the sliding direction of the adjusting carriage, and the outer end part of the spring pin assembly is located in the operating openings.

[0011] Several positioning holes are provided on the inner wall of the slide rail, corresponding to the spring pin assemblies. These positioning holes are evenly distributed along the longitudinal direction of the adjustment slide, and the inner end of the spring pin assembly is inserted into any group of positioning holes and firmly fixed. The weight discs are provided with recessed holes that correspond to the distribution of the adjustment slide. These recessed holes are rectangular, closed openings with the same vertical cross-sectional shape as the adjustment slide.

[0012] An additional secondary plate is attached to the inside of the fixed base plate and firmly connected to it, with a semicircular opening in the middle of the underside of the secondary plate in which the handle housing is arranged and rests against the inner wall of the opening.

[0013] It further includes a holder located below the handle assembly and weight plates, with the handle assembly and weight plates each being inserted into the holder. The holder comprises a base plate and a surrounding wall; the base plate rests on the floor surface, and the four sides of the base plate are each bent upwards to form the surrounding wall.

[0014] It also includes a base plate and a boundary plate;

[0015] The base plate is located on both sides of the upper part of the base plate, the underside of the base plate rests on the base plate and both are connected and fastened together, and weight plates are placed on the top of the base plate.

[0016] The boundary plate is located at the two lateral end parts of the upper part of the base plate, the boundary plate is arranged vertically and rests against the inside of the enclosure wall, the outer side wall of the boundary plate is supported against the inner wall of the enclosure wall, and the underside of the boundary plate is connected and fastened to the base plate by its one-piece mounting foot, the mounting foot being located in the gap between the base plate and the enclosure wall.

[0017] The limiting plate is located on the outside of the corresponding weight disc and is provided with a slot that corresponds to the weight disc, with the outer slotting plate of the weight disc being arranged in the slot.

[0018] The advantage of this utility model lies in its rational structural design. By improving the dumbbell's structure, two groups of solid base plates are connected via the handle housing and the support, with the handle housing in the middle and the support at the bottom. This combined structure of handle housing and support with the solid base plates creates a more stable product, prevents deformation during long-term use, and provides ample space for the hand by creating a recessed groove, thus facilitating use. The support at the bottom, positioned between the two groups of solid base plates, protects the hands, ensuring safety during use.

[0019] For the barbell's adjustment mechanism, the adjustment slider is positioned inside the lower support. This eliminates the need for additional space and ensures that the hand does not interfere with the grip. When the adjustment slider moves and makes contact with the weight plate, the entire process occurs within the support and the weight plate, with no external components exposed. This guarantees the stability of the connection between the adjustment slider and the weight plate, prevents the risk of the adjustment slider shifting due to external exposure, and eliminates the risk of user injury. Description of the characters

[0020] The utility model is further explained below with reference to the drawings and examples of embodiments. Fig. Figure 1 is a schematic structural view of the utility model. Fig. Figure 2 is a schematic structural view of the utility model in the holder's separated state. Fig. Figure 3 is a schematic structural view of the handle assembly. Fig. Figure 4 is a schematic structural view of the handle assembly in the separated state. Fig. Figure 5 is a schematic structural view of the handle assembly in the separated state of the adjusting slide. Fig. Figure 6 is an axonometric structural view of the adjustment slide. Fig. Figure 7 is a front view of the structure of the adjusting slide. Fig. 8 is a sectional view along AA in Fig. 7. Fig. Figure 9 is an axonometric structural view of the weight disc. Fig. Figure 10 is a side view of the structure of the handle assembly. Fig. 11, Fig. 12 and Fig. 13 are sectional views along BB (at various positions) in Fig. 10. Fig. Figure 14 is a schematic structural view of the utility model in the separated state of the second weight disc. Fig. Figure 15 is a schematic structural view of the second weight disc in the separated state. Fig. Figure 16 is a schematic structural view of the utility model in its used state.

[0021] In the Fig. 100 Handle assembly, 101 Fixed base plate, 102 Side plate, 103 Elastic bolt, 104 Adjustment slide, 1041 Mounting hole, 1042 Movement track, 105 Spring, 106 Positioning element, 107 Handle housing, 108 Support, 1081 Slide rail, 1082 Operating opening, 1083 Positioning hole, 1084 Recess groove, 109 First limit groove, 110 Second limit groove, 111 Limit projection, 112 First recess hole, 200 First weight disc, 210 Plug-in plate, 211 Projection part, 220 Housing part, 221 First plug-in groove, 222 Detent groove, 223 Second recess hole, 300 Holder, 301 Enclosing wall, 302 Limit plate, 303 Base plate 304 Mounting foot, 305 Second slot, 306 Third recess hole, 307 Base plate, 400 Second weight disc, 401 Round cap, 402 Bayonet fitting, 403 Fastening element. Specific embodiments

[0022] The following section explains the implementation of the utility model using specific examples. Experts in this field can easily recognize further advantages and effects of the utility model from the content disclosed in this description.

[0023] According to the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15 to Fig. Figure 16 provides a laterally adjustable barbell comprising a handle assembly 100, a first weight plate 200, and a holder 300. The handle assembly 100 and the first weight plate 200 are each inserted into the holder 300, with the handle assembly 100 positioned in the center. The first weight plate 200 consists of two groups, one on each side, with each group comprising eleven plates. The number of weight plates per group can also be specified depending on the model and size of the product. Normally, the handle assembly 100 and the first weight plate 200 are arranged separately. In use, the handle assembly 100 can be movably connected to some or all of the first weight plates 200 to adjust the weight of the barbell. The specific structure and operating principle of each module are described below.

[0024] The handle assembly 100 comprises the fixed base plate 101, the handle housing 107, the support 108, the second weight disc 400, and the adjustment slide 104. The fixed base plate 101 consists of two groups, each arranged on either side of the handle housing 107 and the support 108. The first weight disc 200 is located on the outer side of the fixed base plate 101. The end parts of the handle housing 107 and the support 108 are each rigidly connected to the fixed base plate 101. Inside the lateral edges of the support 108 is the continuous slide rail 1081, in which the adjustment slide 104 is slidably arranged, wherein: The outer edge of the fixed base plate 101 essentially corresponds to the shape of the first weight disc 200, except that there is a recess in the lower central areas of both the left and right sides of the fixed base plate 101. On the inner side of the fixed base plate 101 are limit grooves that correspond to the handle housing 107 and the carrier 108 and are identical in shape. An additional, connected secondary plate 102 is attached to the upper inner side of the fixed base plate 101. A group of plug-in plates 210, which are fixedly connected to the fixed base plate 101, is located on the upper outer side.

[0025] The limit grooves in the structure of the fixed base plate 101 comprise the second limit groove 110, which corresponds to the end part of the handle housing 107 and is circular, and the first limit groove 109, which corresponds to the support 108 and has a U-shaped structure. During assembly, the end parts of the handle housing 107 and the support 108 must be inserted into the corresponding limit grooves to achieve pre-positioning, which facilitates the subsequent tightening with screws.

[0026] Furthermore, the first limiting groove 109 contains a first recess 112 with a through-hole structure, which serves to guide the adjusting carriage 104 through the fixed base plate 101. This allows the adjusting carriage 104 to contact one or more groups of the first weight discs 200 by controlling the sliding distance, thus enabling the weight adjustment of the product. The first recess 112 is a closed rectangular opening that prevents the adjusting carriage 104 from falling out or becoming detached within the first recess 112 and also avoids contact with the hand, thereby increasing safety during use. In this embodiment, two symmetrically arranged first recesses 112 are provided, so that the fixed base plate 101 can be used on either the left or right side.

[0027] In the aforementioned structure of the fixed base plate 101, the left and right sides as well as the upper edge of the secondary plate 102 are flush with the outer edge of the fixed base plate 101. The secondary plate 102 is connected and fastened to the fixed base plate 101 by screws. The size of the secondary plate 102 is approximately half that of the fixed base plate 101. A semicircular opening is located in the center of the underside of the secondary plate 102, and the handle housing 107 lies within this opening and is positioned against its inner wall. In this structure, the secondary plate 102 is additionally and firmly attached to the fixed base plate 101, which not only increases the thickness and structural strength of the fixed base plate 101 but also enables a uniform distribution of force through the contact between the secondary plate 102 and the handle housing 107.This means that part of the forces are transferred directly to the connection point between the two via the connection with the fixed base plate 101, and part of the forces are transferred via the secondary plate 102 to the connection point between the secondary plate 102 and the fixed base plate 101, thereby distributing the force application points and making the structure of the product more stable.

[0028] The second weight disc 400 is located on the inside of the aforementioned auxiliary plate 102. The left and right sides, as well as the upper edge of the second weight disc 400, are flush with the outer edge of the fixed base plate 101. The underside of the second weight disc 400 is positioned higher than that of the fixed base plate 101. Simultaneously, the center of the underside of the second weight disc 400 has a U-shaped recess 402, the opening of which faces downwards, and the handle housing 107 lies within this recess 402 and is positioned against its inner wall. A spring pin assembly is located on the upper surface of the center of the second weight disc 400. The end portion of this assembly is inserted into the corresponding bores in the fixed base plate 101 and the auxiliary plate 102 to fix the position of the second weight disc 400.The spring pin assembly comprises a spring pin shaft 103, a spring 105, a mounting part 403, and a round cap 401. The spring 105 is mounted externally around the spring pin shaft 103. The end of the spring pin shaft 103 passes through the mounting part 403 and is connected to the round cap 401. The mounting part 403 is mounted and secured to the second weight disc 400. In this assembly, pulling or releasing the round cap 401 controls whether the spring pin shaft 103 enters or exits the fixed base plate 101 and the secondary plate 102, thus enabling the assembly or disassembly of the second weight disc 400 by movement. The second weight plate 400 mainly serves to meet the tuning of the standard weight of the grip assembly, so that the second weight plate 400 together with the grip assembly forms a relatively precise total weight and is therefore used together with the first weight plate 200.

[0029] On the surface of the handle housing 107, near both ends, there are also annular limiting ridges 111. The limiting ridges 111 abut the inner surface of the second weight disc 400. The arrangement of the limiting ridges 111 serves both to position the mounting location of the second weight disc 400 during assembly and to prevent the second weight disc 400 from intruding into the main working area of ​​the handle housing 107 and injuring the hand. The support body 108 is a flat, rectangular structure whose length corresponds to that of the handle housing 107 and whose width is slightly less than that of the fixed base plate 101. In the center of the upper surface of the support body 108 is a recess groove 1084, which runs parallel to the handle housing 107. The recess groove 1084 lies directly beneath the handle housing 107.When using the laterally adjustable dumbbell, the hand lies exactly in this recessed groove 1084, creating sufficient room for movement and making handling easier.

[0030] In the combined structure of a fixed base plate 101, handle housing 107, and support body 108, the fixed base plates 101 are connected to each other via the handle housing 107 and the support body 108, forming a unit that serves as the main body of the handle assembly 100. Compared to the traditional barbell structure, the support body 108 is added here, making the barbell structure more stable and durable, and also providing hand protection. Furthermore, the adjustment slide 104 and associated accessory components are integrated synchronously onto the support body 108, as are the slide rails 1081 located on both sides of the support body 108 and two sets of first weight plates 200, one on the left and one on the right. One set of adjustment slide 104 can slide to the left, with the protruding part of the adjustment slide 104 engaging with the left first weight plates 200.The other set of adjustment slides 104 can slide to the right, with the protruding part interacting with the right-hand first weight plates 200. The adjustment slide 104, through its sliding motion, allows interaction with various first weight plates 200 to adjust the weight of the barbell. The specific design structure comprises: Two sets of adjusting slides 104 are located in the corresponding guide rails 1081. A set of spring pin axles 103 is connected to the adjusting slide 104 near its left end. Operating openings 1082 are located on the long side walls at the front and rear of the support body 108, distributed along the sliding direction of the adjusting slide 104. The operating openings 1082 are slot-shaped. The spring pin axle 103 is located within these operating openings 1082 and is movable there.

[0031] Regarding the arrangement of the spring pin axis 103, it runs through the adjusting slide 104 and is connected to a positioning part 106, which is located on the opposite side of the adjusting slide 104.

[0032] A round protrusion is located on the outside of the positioning part 106. A spring 105 is mounted on the outside around the spring pin axis 103. Additionally, positioning holes 1083 are provided on the inner wall of the slide rail 1081. which correspond to the round elevation of the positioning part 106. The positioning bores 1083 are arranged in several sets along the sliding direction of the adjusting carriage 104, so that when the adjusting carriage 104 slides into different positions, the position can be fixed by connecting the positioning part 106 with a positioning bore 1083.

[0033] Specifically regarding the Fig. 10, Fig. 11, Fig. 12 to Fig.13: When the spring pin shaft 103 is at rest, the positioning part 106 is inserted into the corresponding positioning bore 1083, and the adjusting carriage 104 cannot slide. When the spring pin shaft 103 is pulled outwards, the positioning part 106 disengages from the corresponding positioning bore 1083, and the adjusting carriage 104 can be moved to any desired position. The spring pin shaft 103 is then released, allowing the positioning part 106 to re-engage in the corresponding positioning bore 1083 and the position of the adjusting carriage 104 to be readjusted. This adjustment movement changes the length by which the end part of the sliding adjusting carriage projects beyond the fixed base plate 101. A greater projecting length of the end part allows it to contact more of the first weight discs 200.During training, several sets of the first 200g weight plate are lifted together with the 100g grip assembly, and the weight of the laterally adjustable barbell becomes heavier. Conversely, the weight becomes lighter.

[0034] The first weight disc 200 comprises a plug-in plate 210 and a main part 220. The plug-in plate 210 is mounted on the upper center of the outer side of the main part 220. Additionally, a first plug-in groove 221 is located on the inside of the plug-in plate 210, the shape of which corresponds to that of the plug-in plate 210. Furthermore: The main part 220 is a square plate with rounded corners. The first slot 221 is located on the inner side surface of the main part 220. which is located near the top. The first slot 221 is a U-shaped, upwardly open structure. On both side surfaces and the bottom surface of the first slot 221 are locking grooves 222 in the form of a dovetail joint. The locking grooves 222 have a certain depth and serve to receive the mounting plate 210 of an adjacent first weight disc 200.

[0035] The plugboard 210 is a rectangular plate overall. The plugboard 210 is attached to the main part 220 with screws. The side edges of the plugboard 210 slope downwards from top to bottom, tapering in width so that the plugboard 210 is wider at the top and narrower at the bottom. The underside of the plugboard 210 is a convex surface, which facilitates positioning and makes insertion into the first slot 221 from top to bottom smoother. Simultaneously, the two side surfaces and the underside of the plugboard 210 are inclined towards the main part 220, so that the three side edges of the plugboard 210 form a projection 211 with a triangular cross-section. When the plugboard 210 enters the first slot 221, this projection 211 engages in the locking slots 222 on the sides and bottom of the first slot 221, thus preventing the plugboard 210 from moving horizontally and leaving the first slot 221.

[0036] When ten first weight plates 200 are inserted into the holder 300, the plug-in plate 210 of an inner set of first weight plates 200 slides into the first plug-in groove 221 of an outer set of first weight plates 200, and so on. In this way, the ten first weight plates 200 are connected to each other as a unit. They can only separate from each other when an inner set or several consecutive first weight plates 200 are moved upwards. The combined structure of the first weight plates 200 must be realized according to the contact result with the handle assembly 100, so that a second recess bore 223 is still present on the main part 220 of the first weight plate 200. The shape of the second recess bore 223 corresponds to that of the adjusting slide 104. The second recess bore 223 has a closed edge and is located laterally in the lower area of ​​the main part 220.In this way, when the adjusting slide 104 enters the second recess bore 223, it can only slide along its longitudinal direction and cannot move in other directions, which further ensures the safety of product use and eliminates the risk of loosening and falling. The holder 300 comprises a surrounding wall 301, a limiting plate 302, a base plate 303, and a bottom plate 307. Furthermore: The base plate 307 is located at the bottom. The four sides of the base plate 307 are each bent upwards and form the surrounding wall 301, which essentially encloses the handle assembly 100 and the first weight plates 200 and prevents slippage and Leaving the holder prevented 300.

[0037] To prevent the arrangement of the enclosure wall 301 from interfering with the use of the laterally adjustable barbell, a third recess 306 is provided in the enclosure wall 301 at the position corresponding to the handle assembly 100. This can be created during the machining process by removing material from the enclosure wall 301 at this point, thereby reducing the height of the enclosure wall 301 and allowing the hand to use the handle assembly 100 without obstruction.

[0038] The support plate 303 is located on top of both sides of the base plate 307. The underside of the support plate 303 rests on the base plate 307 and is secured there, so that the support plate 303 is located under the first weight plates 200 and supports their underside to ensure the flatness of the bearing surface of the first weight plates 200. The support plate 303 can also be replaced if it becomes worn.

[0039] The limiting plate 302 is located at the top of the end pieces on both sides of the base plate 307. The limiting plate 302 is oriented vertically and rests against the inside of the enclosure wall 301. The outer side wall of the limiting plate 302 abuts the inner wall of the enclosure wall 301. Bent mounting feet 304 are located on the inner underside of the limiting plate 302. There are two symmetrically distributed mounting feet 304, which are also located on both sides of the base plate 303. The undersides of these mounting feet 304 rest on and are attached to the base plate 307, thereby fixing the limiting plate 302 in place. In this configuration, the limiting plate 302 defines the end pieces of the handle assembly 100 and the first weight plates 200, ensuring that they are correctly positioned inside the holder 300.At the same time, the thickness of the mounting feet 304 should be less than that of the base plate 303 in order not to impair the contact between the base plate 303 and the first weight plates 200 and to maintain the flatness of the contact surface of the first weight plates 200.

[0040] To improve interaction with the first weight plates 200, the limiting plate 302 also has a second slot 305, which corresponds to the slot 210 of the first weight plate 200. The second slot 305 has the same structure as the first slot 221. When the first weight plates 200 are inserted into the holder 300, the outermost slot 210 can engage in the second slot 305, ensuring a precise fit between the first weight plate 200 and the limiting plate 302.

[0041] The above-mentioned embodiments represent only the preferred embodiments of the utility model. All technical solutions that achieve the purpose of the utility model using essentially the same means fall within the scope of protection of this utility model.

Claims

[1] A laterally adjustable barbell comprising a handle assembly and several weight plates on both sides of the handle assembly, characterized by The handle assembly comprises a handle housing, a support, and fixed base plates attached to both ends of the handle housing and support. The support is located below the handle housing and is a flat, cuboid structure. The two short sides of the support are each connected to the corresponding fixed base plates. Continuous sliding rails are mounted internally along the two long edges of the support, and a sliding adjustment slide is provided within these sliding rails. The fixed base plate has a recessed hole corresponding to the adjustment slide, allowing the adjustment slide to slide out of the sliding rail and through the recessed hole. [2] The laterally adjustable dumbbell according to claim 1, characterized by, that the center of the top of the carrier is provided with a recess groove that runs parallel to the handle housing, with the recess groove being located directly below the handle housing. [3] The laterally adjustable dumbbell according to claim 1, characterized by , that the inner surface of the fixed base plate is provided with a limiting groove that corresponds to the shape of the handle housing and / or the carrier, and the end part of the handle housing or the carrier is inserted into the limiting groove and connected and fastened to the fixed base plate. [4] The laterally adjustable dumbbell according to claim 3, characterized by that a recessed hole for guiding the adjusting slide through the fixed base plate is present in the limiting groove. [5] The laterally adjustable dumbbell according to claim 1, characterized by, that a spring pin assembly is attached to the adjusting slide, which are connected to it, and the spring pin assembly is guided through the adjusting slide. Each of the two side walls of the carrier has operating openings distributed along the sliding direction of the adjusting carriage, and the outer end part of the spring pin assembly is located in the operating openings. On the inner wall of the slide rail there are several positioning holes that correspond to the spring pin assemblies; the positioning holes are evenly distributed along the longitudinal direction of the adjusting slide, and the inner end part of the spring pin assembly is inserted into any group of positioning holes and firmly fixed. [6] The laterally adjustable dumbbell according to claim 1, characterized bythat the weight discs are provided with recessed holes that correspond to the distribution of the adjusting slide, and that the recessed holes are rectangular, closed openings that have the same vertical cross-sectional shape as the adjusting slide. [7] The laterally adjustable dumbbell according to claim 1, characterized by , that an additional secondary plate is attached to the inside of the fixed base plate and connected and fastened to it, and the center of the underside of the secondary plate is provided with a semicircular opening in which the handle housing is arranged and rests against the inner wall of the opening. [8] The laterally adjustable dumbbell according to claim 1, characterized by, that it further comprises a holder located below the handle assembly and the weight plates, and the handle assembly and the weight plates are each inserted into the holder, the holder comprising a base plate and an enclosure wall, the base plate being located on the bottom surface, and the four sides of the base plate being bent upwards to form the enclosure wall. [9] The laterally adjustable dumbbell according to claim 7, characterized by that it continues to include a base plate and a boundary plate. The base plate is located on both sides of the upper part of the base plate, the underside of the base plate rests on the base plate and both are connected and fastened together, and weight plates are placed on the top of the base plate. The boundary plate is located at the two lateral end parts of the upper part of the base plate, the boundary plate is arranged vertically and rests against the inside of the enclosure wall, the outer side wall of the boundary plate is supported against the inner wall of the enclosure wall, and the underside of the boundary plate is connected and fastened to the base plate by its one-piece mounting foot, the mounting foot being located in the gap between the base plate and the enclosure wall. [10] The laterally adjustable dumbbell according to claim 8, characterized by , that the limiting plate is located on the outside of the corresponding weight disc and the limiting plate is provided with a slot that corresponds to the weight disc, and the outer slotting plate of the weight disc is arranged in the slotting groove.

Images