Dumbbell capable of preventing dumbbell pieces from falling off

Abstract

The utility model discloses a dumbbell capable of preventing dumbbell pieces from falling off, particularly relates to the technical field of dumbbells, and provides the following scheme aiming at the problem that the dumbbell can well prevent the dumbbell pieces from falling off: the dumbbell comprises a supporting rod, the dumbbell pieces and a rotating rod, rotating rods penetrate through the positions, close to the dumbbell pieces, in the two ends of the supporting rod, mounting rings sleeve the outer walls of the ends, close to the supporting rod, of the rotating rods, and a plurality of moving strips are arranged on the outer walls of the rotating rods in a surrounding mode; rubber rings are arranged at the centers of the interiors of dumbbell pieces used for weight balancing, blocking rings are arranged at the ends, close to the center of the supporting rod, of the dumbbell pieces, and fixing rings are arranged at the ends, close to the supporting rod, of the dumbbell pieces. A magnet block is arranged on the outer wall of the center of the rotating rod used for rotating, and conical sliding blocks are rotationally connected to the positions, close to the two ends, of the magnet block. The dumbbell has the advantage that the dumbbell pieces can be conveniently fixed and prevented from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of dumbbells, in particular to a dumbbell capable of preventing dumbbell pieces from falling off. Background Art

[0002] Dumbbells are a simple piece of equipment used to enhance muscle strength training. Their main materials are cast iron and plastic, and some are covered with a layer of rubber. They are used for muscle strength training and muscle compound movement training. When using them, corresponding dumbbell plates need to be installed on both ends of the dumbbells for counterweights. After the installation is completed, they can be fixed to make it convenient for users to hold and use, and the exercise can be adjusted as needed.

[0003] However, in actual use, the fixing structure for installing different dumbbell plates is usually relatively simple, usually fixed with simple bolts, and lacks diverse fixing means. Especially after repeated disassembly and assembly, the fastening is prone to loosening, so it is necessary to prevent it from falling. If one end falls, it is easy to injure the user, or the uneven weight distribution on both sides of the dumbbell may cause strain, etc. Utility Model Content

[0004] The utility model aims to provide a dumbbell which can prevent dumbbell pieces from falling off, and is required to effectively prevent the dumbbell pieces from falling off.

[0005] In order to achieve the above-mentioned object, the utility model provides the following technical solution: a dumbbell for preventing dumbbell plates from falling off, comprising a support rod, dumbbell plates and a rotating rod, wherein the outer walls of both ends of the support rod are sleeved with dumbbell plates, the inner ends of both ends of the support rod are provided with rotating rods penetrating the positions near the dumbbell plates, the outer walls of the rotating rod are sleeved with mounting rings at one end of the rotating rod near the support rod, and the outer wall of the rotating rod is provided with a plurality of movable bars in a surrounding manner;

[0006] A rubber ring is provided at the center of the dumbbell plate for counterweight, a blocking ring is provided at one end of the dumbbell plate near the center of the support rod, and a fixing ring is provided at the end of the dumbbell plate near the support rod;

[0007] A magnet block is provided on the outer wall of the center of the rotating rod for rotation, and conical sliders are rotatably connected near both ends of the magnet block, and the conical sliders slide against the inside of the support rod;

[0008] The moving bar for extrusion is slidably connected to the inside of the support rod, and an extrusion tooth plate is provided on the side of the moving bar close to the outer wall of the support rod. The sides of both ends of the moving bar close to the conical slider are inclined toward the edge of the support rod.

[0009] Preferably, one end of the rotating rod is rotatably connected to the support rod through a bearing, one end of the rotating rod near the edge of the support rod passes through the interior of the support rod and is connected to a knob, and the outer walls of both ends of the rotating rod are surrounded by threads in opposite directions.

[0010] Preferably, the conical slider is inclined toward the center at one end close to the magnet block, and both ends of the magnet block are connected to one end of the conical slider through an extrusion spring, and the extrusion spring is surrounded and sleeved on the outer wall of the rotating rod, and the magnet block is attracted to the moving bar by magnetic force.

[0011] Preferably, a rectangular hole is provided inside the support rod for sliding with the movable bar, and a plurality of clamping holes are provided at both ends of the outer wall of the support rod. A fixing bolt is provided through the inside of the fixing ring, and one end of the fixing bolt passes through the inside of the fixing ring and is inserted into the clamping hole for clamping.

[0012] Preferably, grooves are provided on the outer walls at both ends of the support rod, the mounting ring on the outer wall of the rotating rod corresponds to the position of the groove, and a through bolt is provided inside the groove, and the through bolt passes through the inside of the support rod and fits with the outer wall of the mounting ring.

[0013] Preferably, a torsion spring is provided at one end of the mounting ring close to the center of the support rod, one end of the torsion spring is fixed to the mounting ring, and one end of the torsion spring away from the mounting ring is fixed to the inside of the support rod.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] The fixing ring is sleeved on the outer wall of the support rod and the fixing bolt is turned to insert it into the card hole to fix the position of the fixing ring, and then the dumbbell piece is limited by the fixation of the blocking ring and the fixing ring to prevent it from falling off. Rotating the rotating rod so that the rotating rod rotates can drive the conical slider to move toward the center, and then the conical slider squeezes the two ends of the moving bar, so that the moving bar can move along the rectangular hole toward the outer wall of the support rod, and then the extrusion tooth plate is driven so that the extrusion tooth plate can be squeezed with the rubber ring in the center of the dumbbell piece, and then the rubber ring is squeezed and fixed, so that the dumbbell piece is fixed to prevent it from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the present utility model;

[0018] Figure 2 This is a schematic diagram of the outer wall structure of one end of the support rod of the present invention;

[0019] Figure 3 This is a schematic cross-sectional view of the internal structure of one end of the support rod of the present invention;

[0020] Figure 4 This is a side view of the internal structure of the support rod of the present invention;

[0021] Figure 5 This is a schematic diagram of the external structure of the rotating rod of the present utility model.

[0022] Description of reference numerals:

[0023] 1. Support rod; 101. Rectangular hole; 102. Clamping hole; 103. Groove; 2. Dumbbell plate; 201. Blocking ring; 202. Fixing ring; 203. Fixing bolt; 204. Rubber ring; 3. Rotating rod; 301. Magnet block; 302. Conical slider; 303. Extrusion spring; 4. Mounting ring; 401. Torsion spring; 402. Through bolt; 5. Moving bar; 501. Extrusion tooth plate. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The utility model provides Figure 1-5 The dumbbell shown in the figure prevents dumbbell pieces from falling off, including a support rod 1, dumbbell pieces 2 and a rotating rod 3. The outer walls of both ends of the support rod 1 are sleeved with dumbbell pieces 2, and the rotating rod 3 is penetrated by the inner parts of both ends of the support rod 1 near the dumbbell pieces 2. The outer wall of the rotating rod 3 near one end of the support rod 1 is sleeved with a mounting ring 4, and the outer wall of the rotating rod 3 is surrounded by a plurality of movable bars 5.

[0026] like Figure 1-5 As shown, a rubber ring 204 is provided at the inner center of the dumbbell piece 2 for counterweighting, a blocking ring 201 is provided at one end of the dumbbell piece 2 near the center of the support rod 1, and a fixing ring 202 is provided at the end of the dumbbell piece 2 near the support rod 1; a magnet block 301 is provided on the outer wall at the center of the rotating rod 3 for rotation, and the magnet block 301 is rotatably connected to a conical slider 302 near both ends, and the conical slider 302 slides with the inside of the support rod 1; a moving bar 5 for extrusion is slidably connected with the inside of the support rod 1, and an extrusion tooth plate 501 is provided on one side of the outer wall of the moving bar 5 near the support rod 1, and the two ends of the moving bar 5 are inclined toward the edge of the support rod 1 near the conical slider 302.

[0027] like Figure 4 、 Figure 5 When the cam 310 is in the unlocked position, the cam 310 is in the unlocked position, and the cam 310 is in the unlocked position, so that the cam 310 is locked and the cam 310 is unlocked.

[0028] like Figure 2 、 Figure 3 As shown, the interior of the support rod 1 is provided with a rectangular hole 101 that slides with the movable bar 5, and a plurality of clamping holes 102 are provided at both ends of the outer wall of the support rod 1. A fixing bolt 203 is provided inside the fixing ring 202, and one end of the fixing bolt 203 passes through the interior of the fixing ring 202 and is inserted into and clamped with the clamping hole 102, so that the corresponding dumbbell piece 2 is sleeved on one end of the support rod 1, thereby making the rubber ring 204 and the outer wall of the support rod 1 sleeved with each other. After the sleeve connection is completed, the fixing ring 202 can be easily sleeved on the outer wall of the support rod 1, and the fixing bolt 203 can be rotated to insert it into the clamping hole 102, thereby fixing the position of the fixing ring 202, and then limiting the dumbbell piece 2 by fixing the blocking ring 201 and the fixing ring 202 to prevent it from falling off.

[0029] like Figure 4 、 Figure 5 As shown, grooves 103 are provided on the outer walls of both ends of the support rod 1, and the mounting ring 4 on the outer wall of the rotating rod 3 corresponds to the groove 103, and a through bolt 402 is provided inside the groove 103, and the through bolt 402 passes through the interior of the support rod 1 and fits into the outer wall of the mounting ring 4. A torsion spring 401 is provided at one end of the mounting ring 4 close to the center of the support rod 1, and one end of the torsion spring 401 is fixed to the mounting ring 4, and the end of the torsion spring 401 away from the mounting ring 4 is fixed to the inside of the support rod 1. When the rotating rod 3 rotates, it can drive the mounting ring 4 to rotate, thereby causing the torsion spring 401 to rotate. After the fixation is completed, the through bolt 402 is used to squeeze the mounting ring 4 to prevent it from rotating, so as to achieve the fixation of the rotating rod 3. When the fixation needs to be released, the through bolt 402 can be removed. At this time, under the action of the torsion spring 401, the mounting ring 4 can drive the rotating rod 3 to rotate in the opposite direction.

[0030] Working principle: When in use, the corresponding dumbbell piece 2 can be easily sleeved on one end of the support rod 1, so that the rubber ring 204 and the outer wall of the support rod 1 are sleeved with each other. After the sleeve connection is completed, the fixing ring 202 can be easily sleeved on the outer wall of the support rod 1, and the fixing bolt 203 can be turned to insert it into the card hole 102 to fix the position of the fixing ring 202. Then, by fixing the blocking ring 201 and the fixing ring 202, the dumbbell piece 2 is limited to prevent it from falling off.

[0031] When the rotating rod 3 is rotated, the conical slider 302 is connected to the inner part of the support rod 1 in a sliding manner and cannot rotate with the rotating rod 3, so that the rotating rod 3 can drive the conical slider 302 to move toward the center, so that the conical slider 302 squeezes the two ends of the moving bar 5, so that the moving bar 5 can move along the rectangular hole 101 toward the outer wall of the support rod 1, so that the squeezing tooth plate 501 is driven, so that the squeezing tooth plate 501 can be squeezed with the rubber ring 204 in the center of the dumbbell piece 2, so that the rubber ring 204 is squeezed and fixed, so that the dumbbell piece 2 is fixed to prevent it from falling off. When the rotating rod 3 rotates, it can drive the mounting ring 4 to rotate, thereby causing the torsion spring 401 to rotate. After the fixation is completed, the through bolt 402 is used to squeeze the mounting ring 4 to prevent it from rotating, so that the rotating rod 3 can be fixed. When the fixation needs to be released, the through bolt 402 can be removed. At this time, under the action of the torsion spring 401, the mounting ring 4 can drive the rotating rod 3 to rotate in the opposite direction, thereby causing the conical slider 302 to move in the opposite direction. Under the mutual attraction between the magnet block 301 and the moving bar 5, the moving bar 5 moves in the opposite direction, releasing the squeezing fixation of the extrusion tooth plate 501 and the rubber ring 204.

[0032] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A dumbbell for preventing dumbbell pieces from falling off, comprising a support rod (1), dumbbell pieces (2) and a rotating rod (3), characterized in that: The outer walls of both ends of the support rod (1) are sleeved with dumbbell plates (2), and rotating rods (3) are provided through the inner portions of both ends of the support rod (1) near the dumbbell plates (2). The outer walls of the rotating rod (3) at one end near the support rod (1) are sleeved with mounting rings (4), and the outer wall of the rotating rod (3) is surrounded by a plurality of movable bars (5); A rubber ring (204) is provided at the center of the dumbbell piece (2) for counterweighting, a blocking ring (201) is provided at one end of the dumbbell piece (2) close to the center of the support rod (1), and a fixing ring (202) is provided at each end of the dumbbell piece (2) close to the support rod (1); A magnet block (301) is provided on the outer wall at the center of the rotating rod (3) for rotation, and tapered sliders (302) are rotatably connected near both ends of the magnet block (301), and the tapered sliders (302) slide relative to the interior of the support rod (1); The moving bar (5) for extrusion is slidably connected to the inside of the support rod (1), and an extrusion tooth plate (501) is provided on one side of the moving bar (5) close to the outer wall of the support rod (1). The sides of both ends of the moving bar (5) close to the tapered slider (302) are inclined toward the edge of the support rod (1).

2. A dumbbell for preventing dumbbell pieces from falling off according to claim 1, characterized in that: One end of the rotating rod (3) is rotatably connected to the support rod (1) via a bearing, and one end of the rotating rod (3) near the edge of the support rod (1) passes through the interior of the support rod (1) and is connected to a knob, and the outer walls of both ends of the rotating rod (3) are surrounded by threads in opposite directions.

3. The dumbbell for preventing dumbbell pieces from falling off according to claim 1, characterized in that: One end of the tapered slider (302) close to the magnet block (301) is tilted toward the center, and both ends of the magnet block (301) are connected to one end of the tapered slider (302) via a compression spring (303), and the compression spring (303) is encircled and sleeved on the outer wall of the rotating rod (3), and the magnet block (301) and the moving bar (5) are attracted to each other by magnetic force.

4. The dumbbell for preventing dumbbell pieces from falling off according to claim 1, characterized in that: The support rod (1) is provided with a rectangular hole (101) that slides with the moving bar (5), and a plurality of clamping holes (102) are provided at both ends of the outer wall of the support rod (1). A fixing bolt (203) is provided through the interior of the fixing ring (202), and one end of the fixing bolt (203) passes through the interior of the fixing ring (202) and is inserted into and clamped with the clamping hole (102).

5. The dumbbell for preventing dumbbell pieces from falling off according to claim 1, characterized in that: The outer walls of both ends of the support rod (1) are provided with grooves (103), the mounting ring (4) on the outer wall of the rotating rod (3) and the groove (103) are positioned corresponding to each other, and a through bolt (402) is provided through the interior of the groove (103), and the through bolt (402) passes through the interior of the support rod (1) and fits with the outer wall of the mounting ring (4).

6. The dumbbell for preventing dumbbell pieces from falling off according to claim 1, characterized in that: A torsion spring (401) is provided at one end of the mounting ring (4) close to the center of the support rod (1); one end of the torsion spring (401) is fixed to the mounting ring (4); and one end of the torsion spring (401) away from the mounting ring (4) is fixed to the inside of the support rod (1).

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