Adjustable barbell rod

Abstract

The utility model discloses an adjustable barbell rod which comprises a rod body and an installation head. Mounting heads are fixedly mounted at the two ends of the rod body, grooves are formed in the peripheries of the mounting heads, adjusting convex blocks are movably mounted in the grooves, rotating rods are transversely and movably mounted in the mounting heads, threaded grooves are formed in the outer walls of the two sides of each rotating rod, and the two sides of each rotating rod are sleeved with inner threaded sleeves; threads on the inner wall of the internal thread sleeve are meshed with the thread groove, first rotating shaft seats are fixedly installed on the periphery of the internal thread sleeve, second rotating shaft seats are fixedly installed at the two ends of the inner side of the adjusting protruding block, connecting rods are movably installed on the first rotating shaft seats through rotating shafts, and the other ends of the connecting rods are movably connected with the second rotating shaft seats through rotating shafts. The adjustable barbell disc mounting device can quickly and conveniently control the extension and retraction of the adjusting convex block, so that the mounting head can be suitable for barbell discs with different hole diameters, and the adjustable barbell disc mounting device is simple to operate and higher in applicability.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to an adjustable barbell bar. Background Technology

[0002] Barbells have a wide range of uses. Whether it's the muscles in the shoulders, back, arms, or chest, barbells and weight plates of varying weights can be used for high-repetition strength training techniques to target the endurance of all muscle groups, burning fat and transforming it into a toned physique. This strengthens muscles, enhances core strength, and improves muscles that remain loose even after prolonged exercise. In addition, barbells can delay muscle aging, increase bone density, prevent osteoporosis, improve endocrine function, and enhance body coordination. They are a popular exercise for men and women who want to get fit. Barbells generally consist of a barbell bar and weight plates.

[0003] However, barbell plates are currently divided into large-hole and small-hole types. Therefore, different sizes of barbell bars are often required for barbell plates with different hole diameters. As a result, traditional barbell bars cannot adjust the installation size of the mounting head, making them unsuitable for installing barbell plates with different hole diameters. This greatly reduces installation flexibility and applicability.

[0004] Therefore, how to provide an adjustable barbell bar is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide an adjustable barbell bar. This invention allows for quick and convenient control of the extension and retraction of the adjustment protrusion, enabling the mounting head to accommodate barbell plates with different aperture sizes. It is simple to operate and has greater applicability.

[0006] An adjustable barbell bar according to an embodiment of the present invention includes a bar body and a mounting head;

[0007] The rod body has mounting heads fixedly installed at both ends. Grooves are formed around the mounting heads, and adjusting protrusions are movably installed in the grooves. A rotating rod is movably installed laterally inside the mounting head. Threaded grooves are formed on the outer walls of both sides of the rotating rod. Internal threaded sleeves are fitted on both sides of the rotating rod. The threads on the inner walls of the internal threaded sleeves mesh with the threaded grooves. First rotating shaft seats are fixedly installed around the internal threaded sleeves. Second rotating shaft seats are fixedly installed at both ends inside the adjusting protrusions. A connecting rod is movably installed on the first rotating shaft seat via a rotating shaft. The other end of the connecting rod is movably connected to the second rotating shaft seat via a rotating shaft.

[0008] Optionally, a knob is fixedly installed at the outer end of the rotating rod, located outside the mounting head.

[0009] Optionally, the mounting head may have an integrally formed limiting disc on the side near the rod body.

[0010] Optionally, a sponge anti-slip sleeve is fixedly fitted onto the rod.

[0011] Optionally, a limit block is fixedly installed on the outer wall of the rotating rod and inside the two sets of internal threaded sleeves.

[0012] Optionally, the outer wall threads on both sides of the rotating rod are opposite, and the two sets of internal threaded sleeves are respectively located on opposite threaded grooves on both sides and threadedly connected.

[0013] Optionally, the two sets of internal threaded sleeves are movably connected to the two ends of the inner side of the adjusting protrusion via a connecting rod.

[0014] The beneficial effects of this utility model are:

[0015] This invention can rotate the rotating rod to drive the threaded part to rotate inside the internal threaded sleeve. At this time, the two sets of internal threaded sleeves can move relative to each other, thereby driving the adjusting protrusion to extend and retract within the groove through the connecting rod. By adjusting the extension and retraction of the protrusion, the mounting head can be adapted to barbell plates with different hole diameters, thus greatly improving its applicability. Moreover, the adjustment operation is simple and convenient, and the adjustment can be completed by simply rotating the rotating rod clockwise or counterclockwise. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a front view schematic diagram of an adjustable barbell bar proposed in this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the mounting head of an adjustable barbell bar proposed in this utility model.

[0019] Figure 3 This is a partially enlarged structural diagram of an adjustable barbell bar proposed in this utility model;

[0020] Figure 4 This is a side view of an adjustable barbell bar proposed in this utility model.

[0021] In the diagram: 1. Rod body; 2. Limiting plate; 3. Mounting head; 4. Adjusting protrusion; 5. Knob; 6. Sponge anti-slip sleeve; 7. Groove; 8. Rotating rod; 9. Internal threaded sleeve; 10. Threaded groove; 11. Limiting block; 12. First rotating shaft seat; 13. Connecting rod; 14. Second rotating shaft seat. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] refer to Figure 1-4 An adjustable barbell bar includes a bar body 1 and a mounting head 3;

[0024] Mounting heads 3 are fixedly installed at both ends of the rod body 1. Grooves 7 are provided around the mounting heads 3. Adjusting protrusions 4 are movably installed in the grooves 7. The adjusting protrusions 4 can freely extend and retract within the grooves 7, and the outer wall of the adjusting protrusions 4 is arc-shaped.

[0025] The rotating rod 8 is horizontally movably installed inside the mounting head 3. Threaded grooves 10 are opened on the outer walls of both sides of the rotating rod 8. Internal threaded sleeves 9 are fitted on both sides of the rotating rod 8. The threads on the inner walls of the internal threaded sleeves 9 mesh with the threaded grooves 10. The threads of the threaded grooves 10 on the outer walls of the rotating rod 8 are opposite. The two sets of internal threaded sleeves 9 are threadedly connected on the opposite threaded grooves 10 on both sides. By rotating the rotating rod 8, the threads 10 can be rotated inside the internal threaded sleeves 9. Since the threads 10 on both sides are opposite, the two sets of internal threaded sleeves 9 can be moved relative to each other.

[0026] The inner threaded sleeve 9 is fixedly installed with a first rotating shaft seat 12 on all four sides. The two ends of the inner side of the adjusting protrusion 4 are fixedly installed with a second rotating shaft seat 14. A connecting rod 13 is movably installed on the first rotating shaft seat 12 through a rotating shaft. The other end of the connecting rod 13 is movably connected to the second rotating shaft seat 14 through a rotating shaft.

[0027] Specifically, the two sets of internal threaded sleeves 9 are movably connected to the two ends of the inner side of the adjusting protrusion 4 through the connecting rod 13, thereby driving the adjusting protrusion 4 to extend and retract through the two sets of connecting rods 13;

[0028] Furthermore, a limiting block 11 is fixedly installed on the outer wall of the rotating rod 8 and inside the two sets of internal threaded sleeves 9 to limit the movement of the internal threaded sleeves 9;

[0029] Among them, a knob 5 is fixedly installed at the outer end of the rotating rod 8 and outside the mounting head 3, and the operator can rotate the rotating rod 8 by turning the knob 5;

[0030] Secondly, the mounting head 3 has an integrally formed limiting plate 2 on the side near the bar body 1, which limits the movement when the barbell plates are installed on the mounting head 3;

[0031] In addition, a sponge anti-slip sleeve 6 is fixedly fitted on the pole 1 to provide an anti-slip effect when the staff grips the pole 1;

[0032] In this embodiment, rotating the rotating rod 8 can drive the two sets of internal threaded sleeves 9 to move relative to each other. When the two sets of internal threaded sleeves 9 move relative to each other, the connecting rod 13 can drive the adjusting protrusion 4 to extend and retract within the groove 7, so that the adjusting protrusion 4 can extend or retract around the mounting head 3. When extended, the perforated barbell plate can be placed on the mounting head 3, and conversely, a small-hole barbell plate can be placed on it, thus facilitating the installation and use of barbell plates with different hole diameters.

[0033] Working principle: First, the operator can observe the size of the hole in the barbell plate. When the barbell plate has a large hole, the operator can rotate the lever 8 by turning the knob 5. At this time, the two sets of internal threaded sleeves 9 can move towards the center at the same time. During the movement, the adjusting protrusion 4 can be pushed out of the groove 7 by the connecting rod 13. Then the barbell plate can be placed on the mounting head 3, and the four sets of adjusting protrusions 4 are placed in the hole of the barbell plate. When a small hole barbell plate needs to be installed, the lever can be rotated in the opposite direction to make the adjusting protrusion 4 retract into the groove 7. After the barbell plate is installed, it can be fixed by the retaining spring.

[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An adjustable barbell, characterized in that: It comprises a rod body (1) and a mounting head (3); The rod body (1) is fixedly mounted with mounting heads (3) at both ends, the mounting heads (3) are provided with grooves (7) on all sides, and an adjusting protrusion (4) is movably mounted in the groove (7). A rotating rod (8) is movably mounted inside the mounting head (3), and thread grooves (10) are provided on both sides of the outer walls of the rotating rod (8). Internal thread sleeves (9) are sleeved on both sides of the rotating rod (8), and the inner wall threads of the internal thread sleeves (9) are meshed with the thread grooves (10). A first rotating shaft seat (12) is fixedly mounted on all sides of the internal thread sleeve (9), and a second rotating shaft seat (14) is fixedly mounted on both ends of the inner side of the adjusting protrusion (4). A connecting rod (13) is movably mounted on the first rotating shaft seat (12) via a rotating shaft, and the other end of the connecting rod (13) is movably connected to the second rotating shaft seat (14) via a rotating shaft.

2. An adjustable barbell bar according to claim 1, characterized in that: A knob (5) is fixedly mounted on the outer end of the rotating rod (8) and located outside the mounting head (3).

3. An adjustable barbell bar according to claim 1, characterized in that: The mounting head (3) is integrally formed with a limiting disk (2) on one side close to the rod body (1).

4. An adjustable barbell bar according to claim 1, characterized in that: A sponge anti-slip sleeve (6) is fixedly sleeved on the rod body (1).

5. The adjustable barbell bar according to claim 1, characterized in that: A limiting block (11) is fixedly installed on the outer wall of the rotating rod (8) and located inside the two sets of internal threaded sleeves (9).

6. The adjustable barbell bar according to claim 1, characterized in that: The threads of the thread grooves (10) on the outer walls of the rotating rod (8) are opposite to each other, and the two groups of internal thread sleeves (9) are respectively located on the opposite thread grooves (10) on the two sides and are threadedly connected.

7. An adjustable barbell bar according to claim 1, characterized in that: The two groups of internal thread sleeves (9) are movably connected to the two inner ends of the adjusting protrusion (4) via a connecting rod (13).

Images