Dumbbell rack

Abstract

The utility model discloses a dumbbell rack which comprises a first connecting plate, a second connecting plate and a connecting column set. A plurality of first placing grooves are formed in the first connecting plate and located on the two sides of the first connecting plate in the first direction respectively, the two side walls, in the second direction, of each first placing groove are the first side wall and the second side wall respectively, the included angle alpha between the first side wall and the horizontal plane is larger than or equal to 45 degrees and smaller than or equal to 55 degrees. A plurality of second placing grooves are formed in the second connecting plate, the two side walls, in the second direction, of each second placing groove are the third side wall and the fourth side wall respectively, the included angle beta between the third side wall and the horizontal plane is larger than or equal to 45 degrees and smaller than or equal to 55 degrees. According to the dumbbell rack, the stability of the dumbbell rack is enhanced, the dumbbell can be supported by the first placing groove and the second placing groove, a user can place and take the dumbbell conveniently, the dumbbell with light weight is prevented from falling off, and the stability of the dumbbell on the dumbbell rack is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of dumbbell racks, in particular to a dumbbell rack. Background Art

[0002] In the prior art, the dumbbell placement slots of the dumbbell rack are inconvenient for users to place dumbbells. Some placement slots have larger openings, while others have smaller openings. After the dumbbells are placed, the stability of the dumbbell rack is poor. When the weight of the placed dumbbells is light, the stability of the dumbbells on the dumbbell rack is also poor, and the dumbbells are easy to fall, which is not conducive to the user's placement and taking of the dumbbells. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a dumbbell rack, which enhances the stability of the dumbbell rack, facilitates the support of the dumbbells by the first placement groove and the second placement groove, facilitates the user to place and take the dumbbells, avoids the lighter dumbbells from falling, and enhances the stability of the dumbbells on the dumbbell rack.

[0004] According to the dumbbell rack of the embodiment of the utility model, it includes: a first connecting plate, a plurality of first placement grooves are formed on the first connecting plate, the plurality of first placement grooves are respectively located on both sides of the first connecting plate in the first direction, the two side walls of each of the first placement grooves in the second direction are respectively a first side wall and a second side wall, the first side wall is inclined in a direction toward the second side wall, the angle between the first side wall and the horizontal plane is α, wherein α satisfies: 45°≤α≤55°; a second connecting plate, the second connecting plate and the first connecting plate are opposite to each other in the third direction, a plurality of second placement grooves are formed on the second connecting plate, and the plurality of second placement grooves are respectively located on both sides of the first connecting plate in the first direction, the two side walls of each of the first placement grooves in the second direction are respectively a first side wall and a second side wall, the first side wall is inclined in a direction toward the second side wall, the angle between the first side wall and the horizontal plane is α, wherein α satisfies: 45°≤α≤55°; a second connecting plate, the second connecting plate and the first connecting plate are opposite to each other in the third direction, a plurality of second placement grooves are formed on the second connecting plate, and the plurality of The second placement grooves are respectively located on both sides of the second connecting plate in the first direction, and multiple second placement grooves correspond one-to-one to multiple first placement grooves. The two side walls of each second placement groove in the second direction are respectively a third side wall and a fourth side wall, and the third side wall is inclined in the direction toward the fourth side wall. The angle between the third side wall and the horizontal plane is β, wherein β satisfies: 45°≤β≤55°, and the third direction, the second direction and the first direction are orthogonal to each other; a connecting column group, the connecting column group includes at least one connecting column, and the connecting column is connected between the first connecting plate and the second connecting plate.

[0005] According to the dumbbell rack of the embodiment of the utility model, the angle α between the first side wall of the first placement groove and the horizontal plane satisfies: 45°≤α≤55°, and the angle β between the third side wall of the second placement groove and the horizontal plane satisfies: 45°≤β≤55°. Thus, compared with the traditional dumbbell rack, the stability of the dumbbell rack is enhanced, which is conducive to the support of the dumbbells by the first placement groove and the second placement groove, and facilitates the user to place and take the dumbbells, avoiding the lighter dumbbells from falling, and enhancing the stability of the dumbbells on the dumbbell rack.

[0006] According to some embodiments of the present utility model, the connecting column group includes: a plurality of first connecting column groups, the plurality of first connecting column groups are spaced apart along the second direction, each of the first connecting column groups includes at least one first connecting column; at least one second connecting column group, the second connecting column group is located between two adjacent first connecting column groups, the second connecting column group includes at least one second connecting column, and the number of the second connecting columns in the second connecting column group is less than the number of the first connecting columns in each of the first connecting column groups.

[0007] According to some embodiments of the present invention, in the first direction, the length between the outermost two first connecting pillars of each first connecting pillar group is greater than the length between the outermost two second connecting pillars of the second connecting pillar group.

[0008] According to some embodiments of the present invention, the outer diameter of the connecting column is D, wherein D satisfies: 20mm≤D≤25mm.

[0009] According to some embodiments of the utility model, the dumbbell rack also includes: a first bending plate, the first bending plate is arranged at one end of the first connecting plate in the second direction, and the first bending plate extends in the third direction along a direction away from the first connecting plate; a second bending plate, the second bending plate is arranged at one end of the second connecting plate in the second direction, and the second bending plate extends in the third direction along a direction away from the second connecting plate.

[0010] According to some embodiments of the utility model, part of the side wall of the first connecting plate in the first direction is inclined and recessed toward the direction of the first bending plate to form the first placement groove; part of the side wall of the second connecting plate in the first direction is inclined and recessed toward the direction of the second bending plate to form the second placement groove.

[0011] According to some embodiments of the utility model, the dumbbell rack further includes: a plurality of elastic buffers, the plurality of elastic buffers are respectively arranged in the first placement groove and the second placement groove, and the elastic buffers are suitable for contacting with dumbbells.

[0012] According to some embodiments of the utility model, the dumbbell rack further includes: a third connecting plate, the third connecting plate is arranged at an end of the first connecting plate away from the first bending plate, and the third connecting plate is respectively connected to the first connecting plate and the second connecting plate.

[0013] According to some embodiments of the present utility model, the dumbbell rack also includes: a third bending plate, the third bending plate is located at the other end of the first connecting plate in the second direction, the third bending plate extends in the third direction away from the first connecting plate, and the third bending plate is connected to the third connecting plate; a fourth bending plate, the fourth bending plate is located at the other end of the second connecting plate in the second direction, the fourth bending plate extends in the third direction away from the second connecting plate, and the fourth bending plate is connected to the third connecting plate.

[0014] According to some embodiments of the present invention, the third connecting plate is located between the first bending plate and the second bending plate in the second direction.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic diagram of a dumbbell rack according to an embodiment of the utility model;

[0018] Figure 2 is a schematic diagram of a dumbbell rack according to an embodiment of the utility model from another angle;

[0019] Figure 3 is a schematic diagram of a dumbbell rack according to another embodiment of the utility model;

[0020] Figure 4 is a schematic diagram of a dumbbell rack according to another embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of a dumbbell rack according to another angle of the embodiment of the utility model.

[0022] Reference numerals:

[0023] 100. Dumbbell rack;

[0024] 1. First connecting plate; 11. First placement groove; 111. First side wall; 112. Second side wall; 2. Second connecting plate; 21. Second placement groove; 212. Third side wall; 213. Fourth side wall; 3. Connecting column group; 31. First connecting column group; 311. First connecting column; 32. Second connecting column group; 321. Second connecting column; 4. First bending plate; 5. Second bending plate; 6. Third connecting plate; 7. Third bending plate; 8. Fourth bending plate; 9. Elastic buffer. DETAILED DESCRIPTION

[0025] Reference below Figure 1-Figure 5 A dumbbell rack 100 according to an embodiment of the present invention is described.

[0026] like Figure 1-Figure 5 As shown, the dumbbell rack 100 according to the embodiment of the utility model includes a first connecting plate 1, a second connecting plate 2 and a connecting column group 3.

[0027] Specifically, a plurality of first placement grooves 11 are formed on the first connecting plate 1. In the description of the present utility model, "plurality" means two or more. The plurality of first placement grooves 11 are respectively located on both sides of the first connecting plate 1 in the first direction. The two side walls of each first placement groove 11 in the second direction are respectively a first side wall 111 and a second side wall 112. The first side wall 111 is inclined in a direction toward the second side wall 112. The angle between the first side wall 111 and the horizontal plane is α, wherein α satisfies: 45°≤α≤55°. The second connecting plate 2 and the first connecting plate 1 are opposite to each other in the third direction, and a plurality of second placement grooves 21 are formed on the second connecting plate 2. The plurality of second placement grooves 21 are respectively located on both sides of the second connecting plate 2 in the first direction. The plurality of second placement grooves 21 correspond to the plurality of first placement grooves 11 one by one. The two side walls of each second placement groove 21 in the second direction are respectively the third side wall 212 and the fourth side wall 213. The third side wall 212 is inclined in the direction toward the fourth side wall 213. The angle between the third side wall 212 and the horizontal plane is β, wherein β satisfies: 45°≤β≤55°, and the third direction, the second direction and the first direction are orthogonal to each other. The connecting column group 3 includes at least one connecting column, and the connecting column is connected between the first connecting plate 1 and the second connecting plate 2.

[0028] For example, in Figure 1-Figure 5 In the example, the width direction of the first connecting plate 1 (for example, Figure 1 The front-to-back direction in the figure) is the first direction. The height direction of the first connecting plate 1 (for example, Figure 1 The thickness direction of the first connecting plate 1 (for example, Figure 1 The left and right direction in the figure is the third direction.

[0029] A plurality of first placement grooves 11 are symmetrical along the central axis of the first connecting plate 1 in the second direction, and the first placement grooves 11 located on both sides of the first connecting plate 1 in the first direction are arranged at intervals along the second direction. The first side wall 111 extends obliquely from one side of the first connecting plate 1 in the second direction toward the middle of the first connecting plate 1. A plurality of second placement grooves 21 are symmetrical along the central axis of the second connecting plate 2 in the second direction, and the second placement grooves 21 located on both sides of the second connecting plate 2 in the first direction are arranged at intervals along the second direction. The third side wall 212 extends obliquely from one side of the second connecting plate 2 in the second direction toward the middle of the second connecting plate 2. In this way, the first placement groove 11 and the second placement groove 21 are suitable for placing dumbbells, and after the dumbbells are placed, the dumbbells apply pressure to the first placement groove 11 and the second placement groove 21, so that the center of gravity of the dumbbell rack 100 is stable, thereby maintaining the stability of the dumbbell rack 100.

[0030] When the angle α between the first side wall 111 and the horizontal plane is less than 45° and the angle between the third side wall 212 and the horizontal plane is less than β45°, the angle is too small, and when the user places the dumbbell in the first placement groove 11, it is difficult to operate; when the angle α between the first side wall 111 and the horizontal plane is greater than 55° and the angle between the third side wall 212 and the horizontal plane is greater than β55°, the angle is too large, the number of first placement grooves 11 and second placement grooves 21 on the dumbbell rack 100 will be reduced, and when the dumbbell is placed in the first placement groove 11, the force on both sides of the dumbbell rack 100 in the first direction will be unbalanced, resulting in reduced stability of the dumbbell rack 100, and the dumbbell is easy to fall when it is light.

[0031] Therefore, when the angle α between the first side wall 111 and the horizontal plane satisfies: 45°≤α≤55°, and the angle β between the third side wall 212 and the horizontal plane satisfies: 45°≤β≤55°, it is convenient for users to place and take dumbbells, improves the supporting effect of the first placement groove 11 and the second placement groove 21 on the dumbbells, and further improves the stability of the dumbbell rack 100.

[0032] After the connecting column group 3 connects the first connecting plate 1 and the second connecting plate 2, the first placement groove 11 and the second placement groove 21 correspond to each other. Figure 1 As shown, the number of the first placement slots 11 is 8, and the number of the second placement slots 21 is 8. Figure 3 As shown, the number of the first placement slots 11 is 4, and the number of the second placement slots 21 is 4. Figure 4 As shown, there are four first placement slots 11 and four second placement slots 21 .

[0033] When placing a dumbbell, both ends of the dumbbell are placed in the first placement groove 11 and the second placement groove 21 at the same time, that is, the first placement groove 11 and the second placement groove 21 simultaneously support the dumbbell, and the dumbbell rack 100 also applies pressure to the first placement groove 11 and the second placement groove 21 at the same time, so that the force on both sides of the dumbbell rack 100 in the third direction is balanced, thereby enhancing the stability of the dumbbell rack 100.

[0034] In summary, the angle α between the first side wall 111 of the first placement groove 11 and the horizontal plane satisfies: 45°≤α≤55°, and the angle β between the third side wall 212 of the second placement groove 21 and the horizontal plane satisfies: 45°≤β≤55°, which facilitates the user to place and take the dumbbells, improves the supporting effect of the dumbbell rack 100 on the dumbbells, prevents the dumbbells from falling due to their light weight, and enhances the stability of the dumbbells on the dumbbell rack 100.

[0035] According to the dumbbell rack 100 of the embodiment of the utility model, the angle α between the first side wall 111 of the first placement groove 11 and the horizontal plane satisfies: 45°≤α≤55°, and the angle β between the third side wall 212 of the second placement groove 21 and the horizontal plane satisfies: 45°≤β≤55°. Thus, compared with the traditional dumbbell rack, the stability of the dumbbell rack 100 is enhanced, which is beneficial to the support of the dumbbells by the first placement groove 11 and the second placement groove 21, and facilitates the user to place and take the dumbbells, avoids the lighter dumbbells from falling, and enhances the stability of the dumbbells on the dumbbell rack 100.

[0036] According to some embodiments of the present invention, the connecting column group 3 includes a plurality of first connecting column groups 31 and at least one second connecting column group 32 .

[0037] A plurality of first connecting column groups 31 are spaced apart along the second direction, and each first connecting column group 31 includes at least one first connecting column 311. A second connecting column group 32 is located between two adjacent first connecting column groups 31, and the second connecting column group 32 includes at least one second connecting column 321. The number of second connecting columns 321 in the second connecting column group 32 is less than the number of first connecting columns 311 in each first connecting column group 31. Figure 1-Figure 2 , the number of the first connecting column groups 31 is 3, and the three first connecting column groups 31 are arranged at intervals along the second direction. The number of the second connecting column groups 32 is 2, and the two second connecting column groups 32 are arranged at intervals along the second direction. Figure 3 As shown, there are two first connection column groups 31 and two second connection column groups 32. The second connection column groups 32 and the first connection column groups 31 are alternately arranged in the second direction to enhance the connection between the first connection plate 1 and the second connection plate 2.

[0038] like Figure 1 and Figure 2As shown, each first connection column group 31 includes two first connection columns 311, and the two first connection columns 311 are arranged at intervals in the first direction. Each second connection column group 32 includes one second connection column 321. The number of second connection columns 321 in the second connection column group 32 is small, which reduces the weight of the dumbbell rack 100, ensures the stability of the dumbbell rack 100, and reduces the production cost of the dumbbell rack 100.

[0039] Further, in the first direction, the length between the two outermost first connecting pillars 311 of each first connecting pillar group 31 is greater than the length between the two outermost second connecting pillars 321 of the second connecting pillar group 32. Figure 1-Figure 4 In the example, each first connecting column group 31 includes two first connecting columns 311, and each second connecting column group 32 includes one second connecting column 321. One second connecting column 321 is located on the midline of the two first connecting columns 311, and the positions of the two first connecting columns 311 and one second connecting column 321 become the three vertices of a triangle, so that the connecting column group 3 forms a plurality of triangular structures. Thus, the connecting column group 3 can further enhance the stability of the dumbbell rack 100, ensure the stability of the center of gravity of the dumbbell rack 100, and ensure the stability of the dumbbells on the dumbbell rack 100.

[0040] According to some embodiments of the present invention, the outer diameter of the connecting column is D, wherein D satisfies: 20 mm ≤ D ≤ 25 mm. Figure 1-Figure 4 As shown, when the outer diameter of the connecting column is less than 20 mm, the outer diameter of the connecting column is small, the supporting effect of the connecting column is poor, and the stability of the dumbbell rack 100 is reduced. When the outer diameter of the connecting column is greater than 25 mm, the outer diameter of the connecting column is large, the weight of the connecting column increases, and the weight of the dumbbell rack 100 is also increased, which easily leads to an unstable center of gravity of the dumbbell rack 100. Therefore, the outer diameter D of the connecting column satisfies: 20 mm ≤ D ≤ 25 mm, which not only reduces the weight of the connecting column, ensures the supporting effect of the connecting column, enhances the stability of the dumbbell rack 100, but also ensures the stability of the center of gravity of the dumbbell rack 100.

[0041] According to some embodiments of the present utility model, the dumbbell rack 100 further includes a first bending plate 4 and a second bending plate 5. The first bending plate 4 is provided at one end of the first connecting plate 1 in the second direction, and the first bending plate 4 extends in a direction away from the first connecting plate 1 in the third direction. The second bending plate 5 is provided at one end of the second connecting plate 2 in the second direction, and the second bending plate 5 extends in a direction away from the second connecting plate 2 in the third direction.

[0042] Reference Figure 1-Figure 3The cross-section of the first bending plate 4 is a rectangular shape. The first bending plate 4 and the first connecting plate 1 are perpendicular to each other. The first bending plate 4 is located at one end of the first connecting plate 1 close to the ground, and when the dumbbell rack 100 is placed on the ground, the first bending plate 4 contacts the ground. The cross-section of the second bending plate 5 is a rectangular shape. The second bending plate 5 and the second connecting plate 2 are perpendicular to each other. The second bending plate 5 is located at one end of the second connecting plate 2 close to the ground, and the second bending plate 5 contacts the ground.

[0043] With such arrangement, when the dumbbell rack 100 is placed on the ground, the first bending plate 4 and the second bending plate 5 can support the first connecting plate 1 and the second connecting plate 2, and the contact area between the first bending plate 4 and the second bending plate 5 and the ground is larger, so that the stability of the dumbbell rack 100 is increased and the load-bearing capacity of the dumbbell rack 100 is improved.

[0044] According to some embodiments of the present invention, a portion of the side wall of the first connecting plate 1 in the first direction is inclined and recessed toward the first bending plate 4 to form a first placement groove 11. A portion of the side wall of the second connecting plate 2 in the first direction is inclined and recessed toward the second bending plate 5 to form a second placement groove 21. For example, Figure 1-Figure 4 In the example, the first placement groove 11 is formed by the inclined concave part of the side wall of the first connecting plate 1, and the second placement groove 21 is formed by the inclined concave part of the side wall of the second connecting plate 2. With such a configuration, in the second direction, the area of ​​the first connecting plate 1 between the two first placement grooves 11 gradually decreases, and the area of ​​the second connecting plate 2 between the two second placement grooves 21 gradually decreases, thereby reducing the weight of the first connecting plate 1 and the second connecting plate 2. When the dumbbells are placed in the first placement groove 11 and the second placement groove 21, the stability of the first connecting plate 1 and the second connecting plate 2 is improved, the center of gravity of the dumbbell rack 100 is stable, and the stability of the dumbbell placement is also enhanced.

[0045] According to some embodiments of the present invention, the dumbbell rack 100 further includes a plurality of elastic buffers 9, which are respectively disposed in the first placement groove 11 and the second placement groove 21, and the elastic buffers 9 are suitable for contacting with the dumbbells. Figure 1-Figure 4 As shown, when the dumbbell is placed in the first placement groove 11 and the second placement groove 21, the dumbbell is in direct contact with the elastic buffer 9, which increases the force-bearing surface of the dumbbell. The elastic buffer 9 disperses the pressure of the dumbbell on the first placement groove 11 and the second placement groove 21, and also prevents the dumbbell from being compressed by the second side wall 112 and the fourth side wall 213, thereby preventing the surface of the dumbbell from being worn and protecting the beauty of the dumbbell's appearance.

[0046] According to some embodiments of the present invention, the dumbbell rack 100 further includes a third connecting plate 6, which is disposed at one end of the first connecting plate 1 away from the first bending plate 4, and the third connecting plate 6 is connected to the first connecting plate 1 and the second connecting plate 2 respectively. Figure 1-Figure 5 The third connecting plate 6 is disposed at one end of the second connecting plate 2 away from the second bending plate 5. The first connecting plate 1 and the second connecting plate 2 are respectively connected to the third connecting plate 6 on both sides of the third direction. The third connecting plate 6 further strengthens the connection between the first connecting plate 1 and the second connecting plate 2, making the first connecting plate 1 and the second connecting plate 2 more stable, thereby strengthening the stability of the dumbbell rack 100.

[0047] According to some embodiments of the present utility model, the dumbbell rack 100 further includes a third bending plate 7 and a fourth bending plate 8. The third bending plate 7 is located at the other end of the first connecting plate 1 in the second direction, the third bending plate 7 extends in the third direction in a direction away from the first connecting plate 1, and the third bending plate 7 is connected to the third connecting plate 6. The fourth bending plate 8 is located at the other end of the second connecting plate 2 in the second direction, the fourth bending plate 8 extends in the third direction in a direction away from the second connecting plate 2, and the fourth bending plate 8 is connected to the third connecting plate 6.

[0048] For example, in Figure 3 In the example, the third bending plate 7 is located at one end of the first connecting plate 1 away from the first bending plate 4, and the third bending plate 7 and the first connecting plate 1 are perpendicular to each other. The fourth bending plate 8 is located at one end of the second connecting plate 2 away from the second bending plate 5. The fourth bending plate 8 and the second connecting plate 2 are perpendicular to each other. The third bending plate 7 and the fourth bending plate 8 are both fixedly connected to the third connecting plate 6, so that the first connecting plate 1 and the second connecting plate 2 are connected to the third connecting plate 6, and the contact area between the third bending plate 7 and the fourth bending plate 8 and the third connecting plate 6 is large, which improves the firmness of the connection between the first connecting plate 1 and the second connecting plate 2 and the third connecting plate 6, and enhances the stability of the dumbbell rack 100.

[0049] Furthermore, if Figure 5 As shown, in the second direction, the third connecting plate 6 is located between the first bending plate 4 and the second bending plate 5. In this way, the area of ​​the third connecting plate 6 is small, so that the third connecting plate 6 can improve the firmness of the connection between the first connecting plate 1 and the second connecting plate 2 while reducing the weight and production materials of the third connecting plate 6, reducing the weight of the dumbbell rack 100, ensuring the stability of the center of gravity of the dumbbell rack 100, and reducing the production cost.

[0050] Other structures and operations of the dumbbell rack 100 according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0051] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "axial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0053] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A dumbbell rack, characterized in that: include: A first connecting plate, wherein a plurality of first placement grooves are formed on the first connecting plate, the plurality of first placement grooves are respectively located on both sides of the first connecting plate in the first direction, the two side walls of each of the first placement grooves in the second direction are respectively a first side wall and a second side wall, the first side wall is inclined in a direction toward the second side wall, and an angle α between the first side wall and a horizontal plane is α, wherein α satisfies: 45°≤α≤55°; a second connecting plate, wherein the second connecting plate and the first connecting plate are opposite to each other in a third direction, a plurality of second placement grooves are formed on the second connecting plate, the plurality of second placement grooves are respectively located on both sides of the second connecting plate in the first direction, the plurality of second placement grooves correspond to the plurality of first placement grooves one by one, the two side walls of each of the second placement grooves in the second direction are respectively a third side wall and a fourth side wall, the third side wall is inclined in a direction toward the fourth side wall, and an angle β between the third side wall and a horizontal plane is β, wherein β satisfies: 45°≤β≤55°, and the third direction, the second direction and the first direction are orthogonal to each other; A connecting column group, wherein the connecting column group includes at least one connecting column, and the connecting column is connected between the first connecting plate and the second connecting plate.

2. The dumbbell rack according to claim 1, characterized in that: The connecting column group comprises: A plurality of first connecting column groups, the plurality of first connecting column groups are spaced apart along the second direction, and each of the first connecting column groups includes at least one first connecting column; At least one second connecting column group, the second connecting column group is located between two adjacent first connecting column groups, the second connecting column group includes at least one second connecting column, and the number of the second connecting columns in the second connecting column group is less than the number of the first connecting columns in each of the first connecting column groups.

3. The dumbbell rack according to claim 2, characterized in that: In the first direction, a length between two outermost first connecting pillars of each first connecting pillar group is greater than a length between two outermost second connecting pillars of the second connecting pillar group.

4. The dumbbell rack according to claim 1, characterized in that: The outer diameter of the connecting column is D, wherein D satisfies: 20mm≤D≤25mm.

5. The dumbbell rack according to any one of claims 1 to 4, characterized in that: Also includes: A first bending plate, the first bending plate is provided at one end of the first connecting plate in the second direction, and the first bending plate extends in the third direction in a direction away from the first connecting plate; The second bending plate is arranged at one end of the second connecting plate in the second direction, and the second bending plate extends in the third direction in a direction away from the second connecting plate.

6. The dumbbell rack according to claim 5, characterized in that: Part of the side wall of the first connecting plate in the first direction is inclined and recessed toward the direction of the first bending plate to form the first placement groove; Part of the side wall of the second connecting plate in the first direction is inclined and recessed toward the direction of the second bending plate to form the second placement groove.

7. The dumbbell rack according to claim 6, characterized in that: Also includes: A plurality of elastic buffers are respectively arranged in the first placement groove and the second placement groove, and the elastic buffers are suitable for contacting with the dumbbell.

8. The dumbbell rack according to claim 5, characterized in that: Also includes: A third connecting plate is provided at one end of the first connecting plate away from the first bending plate, and the third connecting plate is connected to the first connecting plate and the second connecting plate respectively.

9. The dumbbell rack according to claim 8, characterized in that: Also includes: A third bending plate, the third bending plate is located at the other end of the first connecting plate in the second direction, the third bending plate extends in the third direction away from the first connecting plate, and the third bending plate is connected to the third connecting plate; A fourth bending plate, the fourth bending plate is located at the other end of the second connecting plate in the second direction, the fourth bending plate extends in the third direction away from the second connecting plate, and the fourth bending plate is connected to the third connecting plate.

10. The dumbbell rack according to claim 8, characterized in that: In the second direction, the third connecting plate is located between the first bending plate and the second bending plate.

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