Convenient dumbbell

Abstract

The utility model provides a convenient dumbbell, and belongs to the technical field of dumbbells. The convenient dumbbell comprises a main body and a counterweight mechanism, the main body comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is provided with a connecting groove, one end of the second connecting rod is provided with a connector, the connector is in threaded connection with the connecting groove, and telescopic rods are movably inserted into the first connecting rod and the second connecting rod; a rotating head is installed at one end of each telescopic rod, the balance weight mechanism comprises a pair of first balance weight blocks, a pair of second balance weight blocks and a pair of third balance weight blocks, the pair of first balance weight blocks, the pair of second balance weight blocks and the pair of third balance weight blocks are movably arranged on the pair of telescopic rods in a sleeving mode correspondingly, and cavities are formed in the first balance weight blocks, the second balance weight blocks and the third balance weight blocks correspondingly; the upper ends of the first balancing weight, the second balancing weight and the third balancing weight are all provided with water injection grooves, the practicability and convenience of the dumbbell can be effectively improved, and the dumbbell has high practical value.

Description

Technical Field

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

[0002] Dumbbells are simple equipment used to enhance muscle strength training. They are mainly made of cast iron, and some are covered with a layer of rubber. They are used for muscle strength training and muscle compound movement training. Patients with low muscle strength due to motor paralysis, pain, long-term inactivity, etc. can hold dumbbells and use the weight of the dumbbells to perform active resistance exercises to train muscle strength.

[0003] Based on the above, the inventors have found the following problems: existing dumbbells are not convenient for users to carry due to their heavy weight and long handles, which results in great limitations on the use of dumbbells.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a convenient dumbbell is provided, in order to achieve the purpose of having more practical value. Utility Model Content

[0005] In order to solve the above technical problems, the embodiment of the utility model provides a convenient dumbbell, which is specifically implemented by the following technical solutions:

[0006] A convenient dumbbell comprises a main body and a counterweight mechanism, the main body comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is provided with a connecting groove, one end of the second connecting rod is installed with a connecting head, the connecting head and the connecting groove are threadedly connected, a telescopic rod is movably inserted into the inside of the first connecting rod and the second connecting rod, one end of the telescopic rod is installed with a rotating head, the counterweight mechanism comprises a pair of first counterweight blocks, a second counterweight block and a third counterweight block, a pair of the first counterweight blocks, the second counterweight blocks and the third counterweight blocks are respectively movably mounted on the pair of telescopic rods, a cavity is provided inside the first counterweight block, the second counterweight block and the third counterweight block, a water injection groove is provided at the upper end of the first counterweight block, the inside of the water injection groove is threadedly connected with a plug cover.

[0007] Furthermore, a movable cavity is provided inside the first connecting rod and the second connecting rod, and a first thread groove is provided on one side of the movable cavity.

[0008] The beneficial effect of adopting the above further solution is that, by providing the moving cavity, the telescopic rod can slide conveniently inside the first connecting rod and the second connecting rod.

[0009] Furthermore, a second thread groove is formed in the first connecting rod and the second connecting rod at one end away from the first thread groove.

[0010] The beneficial effect of adopting the above further solution is that by providing the first thread groove and the second thread groove, the telescopic rod can be easily fixed.

[0011] Furthermore, a threaded rod is installed at one end of the telescopic rod, and the threaded rod is threadedly connected to the first thread groove and the second thread groove respectively.

[0012] The beneficial effect of adopting the above further scheme is that by threading the threaded rod with the first threaded groove, it is convenient for the user to retract the telescopic rod into the first connecting rod and the second connecting rod, and it is not easy to extend automatically, which is convenient to carry; by threading the threaded rod with the second threaded groove, it is convenient to fix the telescopic rod after extension, and it is convenient for the user to put a counterweight mechanism on the telescopic rod.

[0013] Furthermore, a third thread groove is provided on the outer side of one end of the telescopic rod close to the rotating head, and a locking block is threadedly connected to the third thread groove.

[0014] The beneficial effect of adopting the above further solution is that by threading the third Vaughan groove with the locking block, it is convenient for the user to fix the counterweight mechanism with the locking block to prevent the counterweight mechanism from falling off the telescopic rod during training.

[0015] Furthermore, both ends of the first connecting rod and the second connecting rod are sleeved with limiting rings, and the inner sides of the locking blocks are bonded with anti-slip pads.

[0016] The beneficial effect of adopting the above further solution is that by installing a limit ring, the counterweight mechanism can be prevented from pinching the user during training, and by bonding an anti-slip pad to the inside of the locking block, the locking block can be prevented from causing damage to the counterweight mechanism.

[0017] Furthermore, the first connecting rod, the second connecting rod and the telescopic rod are all made of metal, and the surfaces of the first connecting rod, the second connecting rod and the telescopic rod are coated with an anti-rust coating.

[0018] The beneficial effect of adopting the above further solution is that by setting the first connecting rod, the second connecting rod and the telescopic rod to be made of metal material and coating them with an anti-rust coating, their service life and corrosion resistance can be improved.

[0019] Furthermore, the first counterweight block, the second counterweight block and the third counterweight block are all made of plastic.

[0020] The beneficial effect of adopting the above further scheme is that by setting the first counterweight block, the second counterweight block and the third counterweight block to plastic material, the existing hard plastic is strong and light, easy to carry, and will not be corroded by water, thereby increasing its service life.

[0021] The beneficial effects of the utility model are as follows: the utility model provides a convenient dumbbell through the above design. The convenient dumbbell has a connecting groove at one end of the first connecting rod and a connecting head at one end of the second connecting rod. After the connecting head is threadedly connected to the connecting groove, the first connecting rod and the second connecting rod can be spliced, which is convenient for users to use when assembled and convenient for users to carry when disassembled. A telescopic rod is movably inserted inside the first connecting rod and the second connecting rod, and the telescopic rod can be pulled out when in use, which is convenient for users to respectively put the first counterweight block, the second counterweight block and the third counterweight block on the telescopic rod, which is convenient for users to perform strength training. A cavity is provided inside the weight block. Before use, the user injects water into the cavity through the water injection groove and closes the water injection groove with a plugging cover. After the first counterweight block, the second counterweight block and the third counterweight block are filled with water, their weight can be increased, which is convenient for training. After the water is poured out, the weight of the first counterweight block, the second counterweight block and the third counterweight block can be reduced, which is convenient for carrying. By threading the threaded rod with the first threaded groove, it is convenient for the user to retract the telescopic rod into the first connecting rod and the second connecting rod, and it is not easy to extend automatically, which is convenient for carrying. By threading the threaded rod with the second threaded groove, it is convenient to fix the extended telescopic rod, and it is convenient for the user to put the counterweight mechanism on the telescopic rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A three-dimensional structural schematic diagram of a convenient dumbbell provided by the utility model;

[0024] Figure 2 A schematic diagram of an exploded three-dimensional structure of a convenient dumbbell provided by the utility model Figure 1 ;

[0025] Figure 3 A schematic diagram of an exploded three-dimensional structure of a convenient dumbbell provided by the utility model Figure 2 ;

[0026] Figure 4 A schematic diagram of the internal three-dimensional structure of a convenient dumbbell provided by the utility model;

[0027] Figure 5 The utility model provides a side cross-sectional schematic diagram of a first counterweight block of a convenient dumbbell.

[0028] In the figure: 100, main body; 1001, first connecting rod; 1002, second connecting rod; 1003, locking block; 1004, rotating head; 1005, third threaded groove; 1006, limiting ring; 1007, moving cavity; 1008, telescopic rod; 1009, first threaded groove; 1010, connecting groove; 1011, connecting head; 1012, threaded rod; 1013, second threaded groove; 200, counterweight mechanism; 2001, first counterweight block; 2002, second counterweight block; 2003, third counterweight block; 2004, water filling tank; 2005, plugging cover; 2006, cavity. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1 of the utility model of a convenient dumbbell

[0032] The utility model provides the following technical solutions: Figure 1-Figure 5As shown, a portable dumbbell includes a main body 100 and a counterweight mechanism 200. The main body 100 includes a first connecting rod 1001 and a second connecting rod 1002. One end of the first connecting rod 1001 is provided with a connecting groove 1010. One end of the second connecting rod 1002 is provided with a connecting head 1011. The connecting head 1011 is threadedly connected to the connecting groove 1010. Telescopic rods 1008 are movably inserted in the first connecting rod 1001 and the second connecting rod 1002. One end of the telescopic rod 1008 is provided with a rotating head 1004. The counterweight mechanism 200 includes a pair of first counterweight blocks 2001, The second counterweight block 2002 and the third counterweight block 2003, a pair of the first counterweight block 2001, the second counterweight block 2002 and the third counterweight block 2003 are respectively movably mounted on a pair of telescopic rods 1008, the first counterweight block 2001, the second counterweight block 2002 and the third counterweight block 2003 are each provided with a cavity 2006, the upper ends of the first counterweight block 2001, the second counterweight block 2002 and the third counterweight block 2003 are each provided with a water injection groove 2004, the interior of the water injection groove 2004 is threadedly connected with a plugging cover 2005, by providing a connecting groove 1006 at one end of the first connecting rod 1001 10. A connector 1011 is installed at one end of the second connecting rod 1002. After the connector 1011 is threadedly connected to the connecting groove 1010, the first connecting rod 1001 and the second connecting rod 1002 can be spliced, which is convenient for users to use when combined and convenient for users to carry when disassembled. The telescopic rod 1008 is movably inserted into the first connecting rod 1001 and the second connecting rod 1002. When in use, the telescopic rod 1008 can be pulled out, which is convenient for users to respectively sleeve the first counterweight block 2001, the second counterweight block 2002 and the third counterweight block 2003 on the telescopic rod 1008, which is convenient for users to use. When the user performs strength training, a cavity 2006 is provided inside the first counterweight 2001, the second counterweight 2002 and the third counterweight 2003. Before use, the user injects water into the cavity 2006 through the water injection slot 2004, and closes the water injection slot 2004 through the plugging cover 2005. After the first counterweight 2001, the second counterweight 2002 and the third counterweight 2003 are injected with water, their weight can be increased to facilitate training. After the water is poured out, the weight of the first counterweight 2001, the second counterweight 2002 and the third counterweight 2003 can be reduced to facilitate carrying.

[0033] Embodiment 2 of the utility model of a convenient dumbbell

[0034] Reference Figure 1-Figure 5As shown, a movable cavity 1007 is provided inside the first connecting rod 1001 and the second connecting rod 1002, and a first thread groove 1009 is provided on one side of the movable cavity 1007. A second thread groove 1013 is provided at one end of the first connecting rod 1001 and the second connecting rod 1002 away from the first thread groove 1009. A threaded rod 1012 is installed at one end of the telescopic rod 1008, and the threaded rod 1012 is threadedly connected to the first thread groove 1009 and the second thread groove 1013 respectively. A third thread groove 1005 is provided on the outer side of one end of the telescopic rod 1008 close to the rotating head 1004, and a locking block 1003 is threadedly connected to the third thread groove 1005. By providing the movable cavity 1007, it is convenient for the telescopic rod 1008 to be connected between the first connecting rod 1001 and the second connecting rod 1002 The telescopic rod 1008 can be conveniently fixed by providing a first thread groove 1009 and a second thread groove 1013. By threading the threaded rod 1012 with the first thread groove 1009, the user can conveniently store the telescopic rod 1008 in the first connecting rod 1001 and the second connecting rod 1002, and the telescopic rod 1008 is not easy to extend automatically, which is convenient to carry. By threading the threaded rod 1012 with the second thread groove 1013, the extended telescopic rod 1008 can be conveniently fixed, and the user can conveniently put the counterweight mechanism 200 on the telescopic rod 1008. By threading the third Vaughan groove 1005 with the locking block 1003, the user can conveniently use the locking block 1003 to fix the counterweight mechanism 200, so as to prevent the counterweight mechanism 200 from falling off the telescopic rod 1008 during training.

[0035] Embodiment 3 of the utility model of a convenient dumbbell

[0036] Reference Figure 1-Figure 5 As shown, both ends of the first connecting rod 1001 and the second connecting rod 1002 are sleeved with a limiting ring 1006, the inner side of the locking block 1003 is bonded with an anti-slip pad, the first connecting rod 1001, the second connecting rod 1002 and the telescopic rod 1008 are all made of metal, and the surfaces of the first connecting rod 1001, the second connecting rod 1002 and the telescopic rod 1008 are coated with an anti-rust coating, the first counterweight block 2001, the second counterweight block 2002 and the third counterweight block 2003 are all made of plastic, and the limiting ring 1006 is installed to prevent the counterweight mechanism 200 from slipping during training. By gluing an anti-skid pad on the inner side of the locking block 1003, the locking block 1003 can be prevented from damaging the counterweight mechanism 200. By setting the first connecting rod 1001, the second connecting rod 1002 and the telescopic rod 1008 to metal materials and coating them with an anti-rust coating, their service life and corrosion resistance can be improved. By setting the first counterweight block 2001, the second counterweight block 2002 and the third counterweight block 2003 to plastic materials, the existing hard plastic is strong and light, easy to carry, and will not be corroded by water, which can improve its service life.

[0037] Specifically, the working principle of this convenient dumbbell is as follows: when in use, the user threadably connects the connecting head 1011 with the connecting groove 1010, and the first connecting rod 1001 and the second connecting rod 1002 can be spliced. It is convenient for users to use when combined, and convenient for users to carry when disassembled. The telescopic rod 1008 is movably inserted into the first connecting rod 1001 and the second connecting rod 1002, and a threaded rod 1012 is installed at one end thereof. When in use, the user rotates the telescopic rod 1008 to separate the threaded rod 1012 at one end thereof from the first threaded groove 1009, and then pulls out a part of the telescopic rod 1008 from the inside of the first connecting rod 1001 and the second connecting rod 1002. Then, the user rotates the telescopic rod 1008 again to thread it with the second threaded groove 1013, so as to complete the fixing of the extended telescopic rod 1008. At the same time, the user injects water into the cavity 2006 through the water injection groove 2004, and closes the injection through the blocking cover 2005. The water tank 2004 is closed, and the first counterweight block 2001, the second counterweight block 2002 and the third counterweight block 2003 are filled with water to increase their weight. Finally, the user sets the first counterweight block 2001, the second counterweight block 2002 and the third counterweight block 2003 on the telescopic rod 1008 respectively, and connects the locking block 1003 by threading the third thread groove 1005 opened at one end of the telescopic rod 1008, so as to lock the first counterweight block 2001, the second counterweight block 2002 and the third counterweight block 2003 after installation. The third counterweight 2003 is limited, at this time, the user can perform strength training. After the training is completed, the first counterweight 2001, the second counterweight 2002 and the third counterweight 2003 can be removed, and the plug cover 2005 can be opened to pour out the water inside, and the telescopic rod 1008 can be rotated to separate it from the second thread groove 1013, and it can be reinserted into the bottom end and threadedly connected with the first thread groove 1009, and then the first connecting rod 1001 and the second connecting rod 1002 can be disassembled.

[0038] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A convenient dumbbell, characterized in that: The invention comprises a main body (100) and a counterweight mechanism (200), wherein the main body (100) comprises a first connecting rod (1001) and a second connecting rod (1002), wherein one end of the first connecting rod (1001) is provided with a connecting groove (1010), and one end of the second connecting rod (1002) is provided with a connecting head (1011), wherein the connecting head (1011) and the connecting groove (1010) are threadedly connected, and a telescopic rod (1008) is movably inserted inside the first connecting rod (1001) and the second connecting rod (1002), and one end of each of the telescopic rods (1008) is provided with a rotating head (1004), and the counterweight mechanism (200) comprises a pair of first A counterweight block (2001), a second counterweight block (2002) and a third counterweight block (2003); a pair of the first counterweight block (2001), the second counterweight block (2002) and the third counterweight block (2003) are respectively movably mounted on a pair of telescopic rods (1008); a cavity (2006) is provided inside the first counterweight block (2001), the second counterweight block (2002) and the third counterweight block (2003); a water injection groove (2004) is provided at the upper end of the first counterweight block (2001), the second counterweight block (2002) and the third counterweight block (2003); a plugging cover (2005) is threadedly connected inside the water injection groove (2004).

2. A portable dumbbell according to claim 1, characterized in that: A movable cavity (1007) is provided inside the first connecting rod (1001) and the second connecting rod (1002), and a first thread groove (1009) is provided on one side of the movable cavity (1007).

3. A portable dumbbell according to claim 2, characterized in that: A second thread groove (1013) is formed in the first connecting rod (1001) and the second connecting rod (1002) at one end away from the first thread groove (1009).

4. A portable dumbbell according to claim 3, characterized in that: A threaded rod (1012) is installed at one end of the telescopic rod (1008), and the threaded rod (1012) is threadedly connected to the first thread groove (1009) and the second thread groove (1013) respectively.

5. The portable dumbbell according to claim 1, characterized in that: A third thread groove (1005) is provided on the outer side of one end of the telescopic rod (1008) close to the rotating head (1004), and a locking block (1003) is threadedly connected to the third thread groove (1005).

6. A portable dumbbell according to claim 5, characterized in that: Both ends of the first connecting rod (1001) and the second connecting rod (1002) are sleeved with limiting rings (1006), and the inner sides of the locking blocks (1003) are bonded with anti-slip pads.

7. The portable dumbbell according to claim 1, characterized in that: The first connecting rod (1001), the second connecting rod (1002) and the telescopic rod (1008) are all made of metal, and the surfaces of the first connecting rod (1001), the second connecting rod (1002) and the telescopic rod (1008) are all coated with an anti-rust coating.

8. The portable dumbbell according to claim 1, characterized in that: The first counterweight block (2001), the second counterweight block (2002) and the third counterweight block (2003) are all made of plastic.

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