Dumbbell with novel locking structure

Abstract

The dumbbell with the novel locking structure comprises a handle, the two ends of the handle are fixedly connected with limiting plates, one end of each limiting plate is fixedly connected with an installation head, a cavity is formed in the installation head, a long-strip-shaped through groove is formed in one side of the cavity, the long-strip-shaped through groove is located in the surface of one side of the installation head, and the limiting plates are fixedly connected with the installation head. The outer surfaces of the mounting heads are slidably sleeved with dumbbell pieces, limiting grooves are formed in the inner side faces of the dumbbell pieces, marking blocks are arranged on the outer circle surfaces of the dumbbell pieces, the marking blocks are aligned to the positions of one sides of the limiting grooves, adjusting blocks are slidably mounted on the inner sides of the long-strip through grooves, and one sides of the adjusting blocks are fixedly connected with guide rings. A guide rod is slidably mounted in the guide ring, one end of the guide rod is fixedly connected with a limiting head, the position can be adjusted for alignment clamping, the locking safety and stability are improved, dislocation interference is avoided, and combined use is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of dumbbells, and more specifically to a dumbbell with a novel locking structure. Background Art

[0002] Dumbbells are the most commonly used sports equipment for strength training and weightlifting. The dumbbell heads or dumbbell plates of dumbbells are generally heavy. During dumbbell training or weightlifting competitions, the sound of them falling down is very loud, causing a great impact force and also causing great ground damage. Dumbbells are generally composed of a dumbbell bar and dumbbell plates. The dumbbell plates are sleeved on both ends of the dumbbell bar. The dumbbell plates are easy to loosen on the dumbbell bar, so that the dumbbell plates fall off the dumbbell bar and easily injure the user.

[0003] The utility model with authorization announcement number CN 211536349 U provides a safety dumbbell that prevents falling off, including a dumbbell bar, the dumbbell bar including a left connecting rod, a left limiting ring, a hand-held rod, a right limiting ring, and a right connecting rod, the left connecting rod and the right connecting rod are respectively detachably connected with dumbbell plates, and the dumbbell plates are arranged in a polygonal structure; the left connecting rod and the right connecting rod are provided with locking rings on the outer sides of the dumbbell plates, a cavity is provided in the left connecting rod and the right connecting rod, and a locking device is provided in the cavity, the locking device includes an adjusting rod fixedly connected to a steering seat in the cavity and a rotatably connected to the steering seat, and the lower end surface of the adjusting rod is connected to the cavity through one or more supporting springs.

[0004] In the above disclosed structure, the dumbbell pieces are positioned by a fixed-position clamping block, which cannot be adjusted for different quantities and positions, is prone to misalignment and interference, and has poor positioning stability, which needs to be improved. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a dumbbell with a novel locking structure. The dumbbell plates are connected by an installation head, and the installation quantity can be adjusted to change the counterweight, which has high adaptability. The adjustment block and the guide ring are installed through a long through groove, and then the guide rod and the limit head are installed. The position can be adjusted for alignment and connection, thereby improving the safety and stability of the locking, avoiding misalignment interference, and facilitating combined use.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] The locking plate is provided with a plurality of locking plates, each of which is provided with a plurality of locking plates, and the plurality of locking plates are provided with a plurality of locking plates, each of which is provided with a plurality of locking plates.

[0008] Furthermore, one end of the guide rod is fixedly connected to a wedge block, and the wedge block is slidably connected to the inside of the cavity.

[0009] Furthermore, one end of the guide rod is sleeved with a compression spring, and the compression spring is compression-connected to one side of the wedge block.

[0010] Furthermore, the compression spring is tightly connected to one side of the guide ring, and the wedge block and the compression spring are connected by a guide rod, which can be compressed and reset, which is conducive to loosening the limit and convenient for adjustment and use.

[0011] Furthermore, a positioning threaded rod is threadedly installed at one end of the cavity, and the positioning threaded rod is located at the end position of the mounting head.

[0012] Furthermore, a pushing head is provided at one end of the positioning threaded rod, and the pushing head is tightly connected to the inclined surface of the wedge block.

[0013] Furthermore, the pushing head is located inside the cavity, and the pushing head is installed by positioning the threaded rod, and can be rotated and adjusted from the end, which is conducive to pushing the limit and is convenient and stable.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) This solution connects the dumbbell plates through the mounting head, and the number of mountings can be adjusted to change the counterweight, which has high adaptability. The adjustment block and the guide ring are installed through the long through slot, so that the guide rod and the limit head can be installed, and the position can be adjusted for alignment and connection, thereby improving the safety and stability of the locking, avoiding misalignment interference, and facilitating combined use.

[0016] (2) The wedge block and the compression spring are connected by a guide rod, which can be compressed and reset, which is conducive to loosening the limit and convenient for adjustment and use.

[0017] (3) The push head is installed by positioning the threaded rod, and can be rotated and adjusted from the end, which is conducive to pushing the limit and is convenient and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial schematic diagram of the utility model;

[0020] Figure 3 For the utility model Figure 2 Partial structural diagram of the middle limit head connection;

[0021] Figure 4 It is a partial structural diagram of the connection between the guide ring and the adjustment block of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the dumbbell plate of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1 handle, 11 limit plate, 12 mounting head, 13 cavity, 14 long through slot, 15 dumbbell plate, 16 limit slot, 17 marking block, 2 adjustment block, 21 guide ring, 22 guide rod, 23 limit head, 24 threaded rod, 25 wedge block, 26 compression spring, 27 positioning threaded rod, 28 push head. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] See also Figure 1 , Figure 4 and Figure 5A dumbbell with a novel locking structure comprises a handle 1, both ends of the handle 1 are fixedly connected to a limiting plate 11, one end of the limiting plate 11 is fixedly connected to a mounting head 12, a cavity 13 is provided inside the mounting head 12, a long through groove 14 is provided on one side of the cavity 13, the long through groove 14 is located on one side surface of the mounting head 12, a dumbbell piece 15 is slidably sleeved on the outer surface of the mounting head 12, a limiting groove 16 is provided on the inner side of the dumbbell piece 15, a marking block 17 is provided on the outer circumferential surface of the dumbbell piece 15, and the marking block 17 is aligned with one side position of the limit groove 16, an adjusting block 2 is slidably installed on the inner side of the long through groove 14, a guide ring 21 is fixedly connected to one side of the adjusting block 2, a guide rod 22 is slidably installed inside the guide ring 21, one end of the guide rod 22 is fixedly connected to a limit head 23, the limit head 23 is clamped in the inside of the limit groove 16, a threaded rod 24 is installed on the internal thread of the adjusting block 2, the threaded rod 24 is rotatably installed in the inside of the long through groove 14, and the end of the threaded rod 24 is located at one end position of the mounting head 12.

[0028] One end of the guide rod 22 is fixedly connected with a wedge block 25, and the wedge block 25 is slidably connected to the inside of the cavity 13. One end of the guide rod 22 is sleeved with a clamping spring 26, and the clamping spring 26 is clamped and connected to one side of the wedge block 25, and the clamping spring 26 is tightly connected to one side of the guide ring 21. The wedge block and the clamping spring are connected by the guide rod, and can be clamped and reset, which is conducive to loosening the limit and is convenient for adjustment and use. When in use, the dumbbell piece 15 can be sleeved on the mounting head 12, and the limit plate 11 can be tightened to position, and different quantities of weights can be selected. Then the threaded rod 24 can be rotated to slide the adjusting block 2, and the guide ring 22 can be moved laterally, so that the limit head 23 is adjusted to the position of the outermost dumbbell piece 15, and then the limit head 23 is clamped into the inside of the limit groove 16, so that the outermost dumbbell piece 15 can be locked and positioned, thereby compressing the inner dumbbell piece 15, which is convenient for combined locking, convenient and stable, avoiding precise dislocation, and can adapt to different quantity requirements.

[0029] Example 2

[0030] See also Figure 1 , Figure 2 and Figure 3A dumbbell with a novel locking structure comprises a handle 1, both ends of the handle 1 are fixedly connected to a limiting plate 11, one end of the limiting plate 11 is fixedly connected to a mounting head 12, a cavity 13 is provided inside the mounting head 12, a long through groove 14 is provided on one side of the cavity 13, the long through groove 14 is located on one side surface of the mounting head 12, a dumbbell piece 15 is slidably sleeved on the outer surface of the mounting head 12, a limiting groove 16 is provided on the inner side of the dumbbell piece 15, a marking block 17 is provided on the outer circumferential surface of the dumbbell piece 15, and the marking block 17 is aligned with one side position of the limit groove 16, an adjusting block 2 is slidably installed on the inner side of the long through groove 14, a guide ring 21 is fixedly connected to one side of the adjusting block 2, a guide rod 22 is slidably installed inside the guide ring 21, one end of the guide rod 22 is fixedly connected to a limit head 23, the limit head 23 is clamped in the inside of the limit groove 16, a threaded rod 24 is installed on the internal thread of the adjusting block 2, the threaded rod 24 is rotatably installed in the inside of the long through groove 14, and the end of the threaded rod 24 is located at one end position of the mounting head 12.

[0031] A positioning threaded rod 27 is threadedly installed at one end of the cavity 13, and the positioning threaded rod 27 is located at the end position of the mounting head 12. A pushing head 28 is provided at one end of the positioning threaded rod 27, and the pushing head 28 is tightly connected to the inclined surface of the wedge block 25. The pushing head 28 is located inside the cavity 13. The pushing head is installed by the positioning threaded rod, and can be rotated and adjusted from the end, which is conducive to pushing the limit and is convenient and stable. When locking and aligning, the positioning threaded rod 27 can be rotated to move with the pushing head 28, squeezing the wedge block 25 to push the guide rod 22 upward, which can be locked and positioned. After rotating in the opposite direction, it can be separated, and the compression spring 26 is compressed and reset inward, and can be loosened and shrunk, which is convenient for adjustment and use.

[0032] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A dumbbell with a novel locking structure, comprising a handle (1), both ends of the handle (1) are fixedly connected to a limit plate (11), one end of the limit plate (11) is fixedly connected to a mounting head (12), characterized in that: The interior of the mounting head (12) is provided with a cavity (13), one side of the cavity (13) is provided with a long through groove (14), the long through groove (14) is located on one side surface of the mounting head (12), the outer surface of the mounting head (12) is slidably sleeved with a dumbbell plate (15), the inner side surface of the dumbbell plate (15) is provided with a limiting groove (16), the outer circular surface of the dumbbell plate (15) is provided with a marking block (17), the marking block (17) is aligned with a side position of the limiting groove (16), the inner side of the long through groove (14) is slidably mounted An adjusting block (2) is installed, one side of the adjusting block (2) is fixedly connected to a guide ring (21), a guide rod (22) is slidably installed inside the guide ring (21), one end of the guide rod (22) is fixedly connected to a limiting head (23), the limiting head (23) is clamped inside the limiting groove (16), a threaded rod (24) is installed on the internal thread of the adjusting block (2), the threaded rod (24) is rotatably installed inside the long through groove (14), and the end of the threaded rod (24) is located at one end of the installation head (12).

2. A dumbbell with a novel locking structure according to claim 1, characterized in that: One end of the guide rod (22) is fixedly connected to a wedge block (25), and the wedge block (25) is slidably connected to the inside of the cavity (13).

3. A dumbbell with a novel locking structure according to claim 1, characterized in that: One end of the guide rod (22) is sleeved with a compression spring (26), and the compression spring (26) is compressed and connected to one side of the wedge block (25).

4. A dumbbell with a novel locking structure according to claim 3, characterized in that: The compression spring (26) is tightly connected to one side of the guide ring (21).

5. A dumbbell with a novel locking structure according to claim 1, characterized in that: A positioning threaded rod (27) is threadedly mounted at one end of the cavity (13), and the positioning threaded rod (27) is located at the end of the mounting head (12).

6. A dumbbell with a novel locking structure according to claim 5, characterized in that: A pushing head (28) is provided at one end of the positioning threaded rod (27), and the pushing head (28) is tightly connected to the inclined surface of the wedge block (25).

7. A dumbbell with a novel locking structure according to claim 6, characterized in that: The pushing head (28) is located inside the cavity (13).

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