Chest expander with adjustable resistance value

Abstract

The utility model discloses a chest expander with an adjustable resistance value. The chest expander comprises an elastic rope, a handle and a mounting rod, the handle is provided with a first mounting hole and a mounting groove, the first mounting hole is communicated with the mounting groove, and the mounting rod is detachably connected with the handle through the first mounting hole; the elastic rope is provided with a connecting end, the connecting end is provided with a second mounting hole, and the connecting end is arranged in the mounting groove; the mounting rod sequentially penetrates through the first mounting hole and the second mounting hole, and the elastic rope is detachably mounted on the handle. The elastic ropes and the handles are detachably connected through the mounting rods, so that the elastic ropes with different resistance values can be replaced to adjust the resistance value of the chest expander, and the chest expander can meet the requirements of different crowds or the requirements of different training stages. Meanwhile, the chest expander is simple in structure, the number of needed molds is small during production and manufacturing, the needed molds are simple in structure, generated parts do not need to be subjected to excessive secondary machining, assembling is convenient, the production efficiency is improved conveniently, and the production cost is reduced conveniently.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a resistance adjustable tensioner. Background Technology

[0002] A resistance band is a type of equipment suitable for general fitness training. The benefits of using a resistance band include: the biceps brachii is a muscle with two heads, primarily responsible for arm flexion. During arm flexion, another muscle—the triceps brachii—is also used. However, the biceps brachii is only fully engaged during forearm raising exercises, such as high cable curls or reverse high cable curls. Furthermore, the brachioradialis, a major muscle in the upper forearm, also plays a significant role in arm flexion, and lateral cable curls can strengthen the brachioradialis.

[0003] Existing resistance bands mainly consist of elastic ropes and handles at both ends of the elastic ropes. Once the handles and elastic ropes are assembled, the resistance value of the resistance band cannot be adjusted, which cannot meet the needs of different groups of people or different training stages. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a tensioner with adjustable resistance.

[0005] The technical solution adopted by this utility model is as follows:

[0006] This application provides a resistance-adjustable tension device, including an elastic rope, a handle, and a mounting rod;

[0007] The handle has a first mounting hole and a mounting groove, the first mounting hole and the mounting groove are connected, and the mounting rod is detachably connected to the handle through the first mounting hole;

[0008] The elastic rope has a connecting end, the connecting end has a second mounting hole, and the connecting end is disposed in the mounting groove;

[0009] The mounting rod passes through the first mounting hole and the second mounting hole in sequence, and the elastic rope is detachably installed on the handle.

[0010] The elastic cord is detachably connected to the handle via an mounting rod, allowing for the replacement of elastic cords with different resistance values ​​to adjust the resistance of the resistance device. This enables the resistance device provided in this application to meet the needs of different groups or different training stages. Furthermore, the resistance device provided in this application has a simple structure, requires fewer molds for production, and the molds themselves are simple in structure. The resulting parts require minimal secondary processing, and assembly is convenient, thus improving production efficiency and significantly reducing the production cost of the resistance device.

[0011] Specifically, when the elastic cord needs to be replaced, move the mounting rod away from the handle until it is pulled out of the mounting groove or the second mounting hole. Pull the elastic cord out of the mounting groove and replace it with an elastic cord of a different resistance value. During installation, first place the connecting end of the elastic cord in the mounting groove, then pass the mounting rod through the first mounting hole, the second mounting hole of the elastic cord in the mounting groove, and the limiting hole in sequence.

[0012] Furthermore, the elastic cord is made of a flexible, soft rubber material.

[0013] Furthermore, the elastic cord comprises multiple cords;

[0014] The mounting groove is provided with a partition, which is arranged along the length of the elastic rope. The partition divides the mounting groove into multiple sub-grooves, and multiple elastic ropes are respectively arranged in multiple sub-grooves.

[0015] In actual use, multiple slots can be molded as a single piece.

[0016] Furthermore, the elastic rope comprises three strands, and the mounting groove has three sub-grooves.

[0017] Furthermore, a limiting hole is also formed on the mounting groove, the limiting hole being located on the opposite side of the first mounting hole and corresponding to the first mounting hole;

[0018] The two ends of the mounting rod are a limiting end and a mounting end, respectively. The limiting end cooperates with the limiting hole, and the mounting end is threaded or snapped into the first mounting hole.

[0019] Furthermore, the mounting end of the mounting rod has an external thread, and the first mounting hole has an internal thread. Alternatively, one of the mounting end and the first mounting hole has a recess, and the other has a protrusion.

[0020] Furthermore, an end cap is formed at the end of the mounting end away from the limiting end, and the radial dimension of the end cap is greater than the radial dimension of the mounting end. The end cap is used to pull the mounting rod out of the first mounting hole.

[0021] Furthermore, the first mounting hole and the limiting hole are coaxially arranged, and the limiting hole is a through hole or a countersunk hole.

[0022] Furthermore, there are two handles, which are located on the left and right sides of the elastic rope, respectively.

[0023] Furthermore, the handle includes a pull ring body;

[0024] A connecting portion is formed on the pull ring body, and the first mounting hole and mounting groove are disposed on the connecting portion;

[0025] A soft rubber pad is provided on at least the inner side wall of the pull ring body on the side away from the connecting part, and the soft rubber pad is used to cushion the pulling force of the hand.

[0026] Furthermore, at least one of the pull ring bodies is also connected to a strap, which is disposed along the outer periphery of the pull ring body.

[0027] The straps are for use on the user's feet, or for external attachment to other fixed objects, or for hanging and receiving, or for looping around the hands to prevent slippage.

[0028] During normal use, hold both handles with both hands (at this time, the straps can be looped around the hands) to perform stretching exercises. When the straps are used for the user to wear on their feet or for external fixation to other fixed objects, the resistance band provided in this application can unlock another usage scenario: step on one end of the elastic rope (or fix it to other fixed objects) and pull the other end of the elastic rope to perform stretching exercises.

[0029] Furthermore, it also includes a buckle (not shown in the figure). The outer side wall of the pull ring body is provided with a connecting buckle, and the strap is threaded through the connecting buckle and is adjustablely fixed to the pull ring body by the buckle.

[0030] The resistance value of the tensioner provided in this application can be adjusted by inserting and removing the mounting rod, and the resistance value of the tensioner provided in this application has the following adjustment methods:

[0031] When the tensioner has an elastic rope and a mounting slot (i.e., a sub-slot), the resistance of the tensioner can be adjusted by replacing the elastic rope with one of different resistance values.

[0032] When a resistance band has multiple elastic ropes and multiple slots, the resistance of the resistance band can be adjusted by increasing or decreasing the number of elastic ropes, or by replacing one or more elastic ropes with different resistance values, or by simultaneously increasing or decreasing the number of elastic ropes and replacing one or more elastic ropes with different resistance values.

[0033] The beneficial effects of this utility model are:

[0034] (1) The elastic rope is detachably connected to the handle by the mounting rod so as to replace the elastic rope with different resistance values ​​to adjust the resistance value of the puller, and so that the puller provided in this application can meet the needs of different groups of people or different training stages.

[0035] (2) The tensioner provided in this application has a simple structure, requires fewer molds during production, has a simple structure, and the generated parts do not require much secondary processing. It is also easy to assemble, which helps to improve production efficiency and greatly reduce the production cost of the tensioner.

[0036] (3) Set a strap on the outer periphery of the handle to prevent the handle from slipping off the hand or to facilitate hanging and storage, and to enable the resistance band to have other uses besides stretching with both hands: step on one end of the elastic rope (or fix it to another fixed body) and pull the other end of the elastic rope to perform stretching training. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the isometric structure of the tensioner according to an embodiment of the present invention;

[0038] Figure 2 yes Figure 1 A magnified schematic diagram of the structure of part A in the diagram;

[0039] Figure 3 This is a schematic diagram of the left side of the tensioner according to an embodiment of this utility model;

[0040] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of AA;

[0041] Figure 5 yes Figure 4 A magnified schematic diagram of the partial structure of B in the diagram;

[0042] Figure 6 This is a schematic diagram of the axial structure of the pull ring body according to an embodiment of the present invention.

[0043] The labels for the attached figures are as follows:

[0044] 10. Elastic rope; 110. Connecting end; 111. Second mounting hole; 20. Handle; 210. Pull ring body; 211. First mounting hole; 212. Mounting groove; 213. Partition; 2131. Third mounting hole; 214. Limiting hole; 215. Connecting buckle; 216. Slot; 220. Soft rubber pad; 30. Mounting rod; 310. Limiting end; 320. Mounting end; 330. End cap; 40. Tie strap. Detailed Implementation

[0045] The present invention will now be described in detail with reference to the accompanying drawings.

[0046] like Figures 1-6 As shown, this application provides a resistance adjustable tensioner, including an elastic rope 10, a handle 20, and a mounting rod 30;

[0047] The handle 20 has a first mounting hole 211 and a mounting groove 212. The first mounting hole 211 communicates with the mounting groove 212. The mounting rod 30 is detachably connected to the handle 20 through the first mounting hole 211.

[0048] The elastic rope 10 has a connecting end 110, the connecting end 110 has a second mounting hole 111, and the connecting end 110 is disposed in the mounting groove 212;

[0049] The mounting rod 30 passes through the first mounting hole 211 and the second mounting hole 111 in sequence to detachably mount the elastic rope 10 onto the handle 20.

[0050] The elastic rope 10 is detachably connected to the handle 20 via the mounting rod 30, allowing for the replacement of elastic ropes 10 with different resistance values ​​to adjust the resistance of the resistance device. This enables the resistance device provided in this application to meet the needs of different groups or different training stages. Furthermore, the resistance device provided in this application has a simple structure, requires fewer molds for production, and the molds themselves are simple in structure. The resulting parts require minimal secondary processing, and assembly is convenient, thus improving production efficiency and significantly reducing the production cost of the resistance device.

[0051] Specifically, when it is necessary to replace the elastic rope 10, move the mounting rod 30 away from the handle 20 until the mounting rod 30 is pulled out of the mounting groove 212 or the second mounting hole 111. Pull the elastic rope 10 out of the mounting groove 212 and replace it with an elastic rope 10 with a different resistance value. During installation, first place the connecting end 110 of the elastic rope 10 in the mounting groove 212, and then pass the mounting rod 30 through the first mounting hole 211, the second mounting hole 111 of the elastic rope 10 in the mounting groove 212, and the limiting hole 214 in sequence.

[0052] In actual use, the diameter of the second mounting hole 111 is preferably larger than the outer diameter of the mounting rod 30, so that the mounting rod 30 can pass through.

[0053] In this embodiment, the elastic rope 10 is made of a soft rubber material with elasticity.

[0054] In this embodiment, the elastic rope 10 includes three ropes, and the mounting groove 212 has three sub-grooves.

[0055] A partition 213 is provided inside the mounting slot 212. The partition 213 is arranged along the length of the elastic rope 10 and divides the mounting slot 212 into three sub-slots. The three elastic ropes 10 are respectively placed in the three sub-slots.

[0056] In other embodiments, the elastic cord 10 may also include two or five cords, and the mounting groove 212 has three or five sub-grooves;

[0057] In actual use, the partition 213 is provided with a third mounting hole 2131 that is coaxial with the first mounting hole 211, and the mounting rod 30 passes through the third mounting hole 2131.

[0058] When multiple elastic ropes 10 are installed, the partition 213 can prevent the elastic ropes 10 from swaying in the mounting groove 212.

[0059] In actual use, multiple slots can be molded as a single piece.

[0060] In this embodiment, a limiting hole 214 is also formed on the mounting groove 212. The limiting hole 214 is located on the opposite side of the first mounting hole 211 and is correspondingly provided with the first mounting hole 211.

[0061] The two ends of the mounting rod 30 are a limiting end 310 and a mounting end 320, respectively. The limiting end 310 is engaged with the limiting hole 214, and the mounting end 320 is threaded or snapped into the first mounting hole 211.

[0062] In this embodiment, the mounting end 320 of the mounting rod 30 has an external thread, and the first mounting hole 211 has an internal thread. Alternatively, one of the mounting end 320 and the first mounting hole 211 has a concave point, and the other has a convex point.

[0063] In this embodiment, an end cap 330 is formed at the end of the mounting end 320 away from the limiting end 310. The radial dimension of the end cap 330 is larger than the radial dimension of the mounting end 320. The end cap 330 is used to pull the mounting rod 30 out of the first mounting hole 211.

[0064] In this embodiment, the first mounting hole 211 and the limiting hole 214 are coaxially arranged, and the limiting hole 214 is a through hole or a countersunk hole.

[0065] In this embodiment, there are two handles 20, which are located on the left and right sides of the elastic rope 10, respectively.

[0066] In this embodiment, the handle 20 includes a pull ring body 210;

[0067] A connecting portion is formed on the pull ring body 210, and a first mounting hole 211 and a mounting groove 212 are provided on the connecting portion;

[0068] At least on the inner side wall of the pull ring body 210 away from the connecting part, a soft rubber pad 220 is provided to cushion the pulling force of the hand.

[0069] In this embodiment, a slot 216 is provided on the inner side of the pull ring body 210. The slot 216 is a T-shaped slot. The soft rubber pad 220 is snapped onto the pull ring body 210 through the slot 216. Soft rubber pads 220 are provided on the inner sidewall of the pull ring body 210. The soft rubber pads 220 located at the connection position form the bottom of the mounting groove 212.

[0070] In other embodiments, the soft rubber pad 220 may also be adhered to the pull ring body 210.

[0071] In this embodiment, each of the two pull ring bodies 210 is connected with a strap 40, which is arranged in a loop along the outer periphery of the pull ring body 210.

[0072] The strap 40 is for the user to wear on their feet, or for external attachment to other fixed objects, or for hanging and receiving, or for looping around the hand to prevent slippage.

[0073] During normal use, hold both handles 20 with both hands (at this time, the straps 40 can be looped around the hands) to perform stretching exercises. When the straps 40 are used for the user to wear on their feet or for external fixation to other fixed objects, the resistance band provided in this application can unlock another usage scenario: step on one end of the elastic rope 10 fixed (or fixed to other fixed objects) with your feet, and pull the other end of the elastic rope 10 with your hands to perform stretching exercises.

[0074] In this embodiment, a buckle is also included. A connecting buckle 215 is provided on the outer side wall of the pull ring body 210. The strap 40 passes through the connecting buckle 215 and is adjustablely fixed to the pull ring body 210 by the buckle.

[0075] The resistance value of the tensioner provided in this application can be adjusted by inserting and removing the mounting rod 30, and the resistance value of the tensioner provided in this application has the following adjustment methods:

[0076] When the tensioner has an elastic rope 10 and a mounting slot 212 (i.e., a sub-slot), the resistance of the tensioner can be adjusted by replacing the elastic rope 10 with one of different resistance values.

[0077] When the tensioner has multiple elastic ropes 10 and multiple slots, the resistance of the tensioner can be adjusted by increasing or decreasing the number of elastic ropes 10, or by replacing one or more elastic ropes 10 with different resistance values, or by simultaneously increasing or decreasing the number of elastic ropes 10 and replacing one or more elastic ropes 10 with different resistance values.

[0078] The above description is only a preferred embodiment of the present utility model and does not limit the scope of patent protection of the present utility model. Any equivalent structural transformations made based on the content of the present utility model specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of the present utility model.

Claims

1. A resistance-adjustable tension device, characterized in that, Includes elastic ropes, handles, and mounting rods; The handle has a first mounting hole and a mounting groove, the first mounting hole and the mounting groove are connected, and the mounting rod is detachably connected to the handle through the first mounting hole; The elastic rope has a connecting end, the connecting end has a second mounting hole, and the connecting end is disposed in the mounting groove; The mounting rod passes through the first mounting hole and the second mounting hole in sequence, and the elastic rope is detachably installed on the handle.

2. The adjustable resistance tensioner as described in claim 1, characterized in that, The elastic rope comprises multiple ropes; The mounting groove is provided with a partition, which is arranged along the length of the elastic rope. The partition divides the mounting groove into multiple sub-grooves, and multiple elastic ropes are respectively arranged in multiple sub-grooves.

3. The adjustable resistance tensioner as described in claim 2, characterized in that, The elastic rope comprises three strands, and the mounting groove has three sub-grooves.

4. The adjustable resistance tensioner as described in claim 1, characterized in that, The mounting groove is also formed with a limiting hole, which is located on the opposite side of the first mounting hole and is correspondingly set to the first mounting hole; The two ends of the mounting rod are a limiting end and a mounting end, respectively. The limiting end cooperates with the limiting hole, and the mounting end is threaded or snapped into the first mounting hole.

5. The adjustable resistance tensioner as described in claim 4, characterized in that, An end cap is formed at the end of the mounting end away from the limiting end. The radial dimension of the end cap is larger than the radial dimension of the mounting end. The end cap is used to pull the mounting rod out of the first mounting hole.

6. The adjustable resistance tensioner as described in claim 4, characterized in that, The first mounting hole and the limiting hole are arranged on the same axis, and the limiting hole is a through hole or a countersunk hole.

7. The adjustable resistance tensioner as described in claim 1, characterized in that, The elastic rope is provided with two handles, which are located on the left and right sides respectively.

8. The adjustable resistance tensioner as described in claim 7, characterized in that, The handle includes a pull ring body; A connecting portion is formed on the pull ring body, and the first mounting hole and mounting groove are disposed on the connecting portion; A soft rubber pad is provided on at least the inner side wall of the pull ring body on the side away from the connecting part, and the soft rubber pad is used to cushion the pulling force of the hand.

9. A resistance-adjustable tensioner as described in claim 8, characterized in that, At least one of the pull ring bodies is also connected to a strap, which is disposed along the outer periphery of the pull ring body.

10. A resistance-adjustable tensioner as described in claim 9, characterized in that, It also includes a buckle, and the outer side wall of the pull ring body is provided with a connecting buckle. The strap is threaded through the connecting buckle and is adjustablely fixed to the pull ring body by the buckle.

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