Arm strength exerciser

Abstract

The utility model relates to an arm strength exerciser which comprises a spring tube and two grab handles. The bourdon tube is a cylindrical spiral bourdon tube with a certain length and comprises a middle main body part with a larger diameter and two end parts which are positioned at two ends of the middle main body part and have smaller diameters; and the two grab handles are respectively and fixedly sleeved on the two end parts. The main body is the cylindrical spiral bourdon tube, the grab handles are arranged at the two ends of the cylindrical spiral bourdon tube respectively, the two hands grasp the grab handles to elastically bend the bourdon tube during exercise, so that the muscle strength of the arms is exercised, and the bourdon tube has the advantages of being simple in structure and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to an arm strength training device. Background Technology

[0002] Fitness equipment refers to various machines and tools used to enhance muscle strength, improve physical endurance, and shape the body. With increasing emphasis on health, more and more people are engaging in regular physical exercise, among which arm strength training is quite common. An arm strength trainer is a very practical arm strength training device, mainly composed of a spring, a connecting rod connected to both ends of the spring, and a handle fixed to the connecting rod. For example, Chinese utility model patent CN221358396U discloses an arm strength trainer including a first gripping part and a second gripping part. A fixing part is provided on one side of both the first and second gripping parts, and a spring is provided between the two fixing parts. The fixing part includes a first housing and a second housing that are interlocked. Each of the first and second gripping parts includes a connecting shaft with one end located within the fixing part.

[0003] This type of arm exerciser has the following defect: the first and second gripping parts at both ends of the spring are connected and fixed by a fixing part. When using the arm exerciser for arm training, the connection strength between the gripping parts and the spring is poor, and they may fall off. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an arm strength training device that is easy to use and has a simple structure.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] An arm strength training device includes a spring tube and two handles; the spring tube is a cylindrical helical spring tube of a certain length, which includes a middle main body with a larger diameter and two ends with smaller diameters located at both ends of the middle main body; the two handles are respectively fixedly sleeved on the two ends.

[0007] Furthermore, the intermediate main body is provided with transition sections at both ends and between the two end portions, with the diameter gradually decreasing from the intermediate main body towards each end portion.

[0008] Furthermore, it also includes two limiting members. The two handles are respectively sleeved on the ends of the two ends near the middle main body, and the two limiting members are respectively screwed on the ends of the two ends away from the middle main body, so as to prevent the two handles from coming off the two ends.

[0009] Furthermore, each of the two handles includes a gripping part and a stop part. The stop part is sleeved on the transition section, and the gripping part is sleeved on the corresponding end. The end of each end that is away from the middle main body is exposed outside the gripping part.

[0010] Furthermore, each of the two limiting members is provided with a threaded connection hole that is adapted to the end of the corresponding end away from the intermediate main body. The two limiting members are respectively threaded through the threaded connection hole to the end of the corresponding end away from the intermediate main body.

[0011] Furthermore, each grip has an external threaded connection at the end away from the stop portion of the gripping part, and each limiting member has a threaded connection hole including a first threaded connection hole segment that is adapted to and threadedly connected to the external threaded connection portion and a second threaded connection hole segment that is adapted to and threadedly connected to the end of the corresponding end away from the intermediate main body portion.

[0012] Furthermore, the length of each end is greater than the length of the grip portion, and the length of each handle is greater than the length of each limiting member.

[0013] Furthermore, the length of the intermediate main body is more than twice the length of each end portion.

[0014] Furthermore, the intermediate main body and the two adjacent spring coils at the two ends are in contact with each other.

[0015] Furthermore, the pitch between adjacent spring coils in the middle main body and the two ends is less than 2 mm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] First, the main body of this utility model is a cylindrical helical spring tube, including a middle main body with a larger diameter and two ends with a smaller diameter located at both ends of the middle main body. As a whole, it can be ensured that it will not fall off when the two ends are held for bending training. In addition, the entire spring tube has a certain degree of elasticity, which makes the exercise more effective.

[0018] Secondly, handles are provided on the outer sides of both ends, with a stop portion fitted onto the transition section and a grip portion fitted onto the corresponding ends. Two limiting members are screwed onto the ends of both ends away from the central main body to prevent the two handles from coming off the two ends. The hand grip exercise improves the user's experience and comfort. Attached Figure Description

[0019] Figure 1 This is a perspective view of Embodiment 1 of the arm strength training device of this utility model.

[0020] Figure 2This is a perspective view of embodiment 2 of the arm strength training device of this utility model.

[0021] Figure 3 This is a perspective view of the spring tube of this utility model.

[0022] Figure 4 This is a perspective view of the handle of Embodiment 1 of this utility model.

[0023] Figure 5 This is a perspective view of the limiting component in Embodiment 1 of this utility model.

[0024] Figure 6 This is a perspective view of the handle of Embodiment 2 of this utility model.

[0025] Figure 7 This is a top perspective view of the limiting component in Embodiment 2 of this utility model.

[0026] Figure 8 This is a bottom perspective view of the limiting component of Embodiment 2 of this utility model.

[0027] Figure 9 This is a cross-sectional view of Embodiment 1 of the arm strength training device of this utility model.

[0028] Figure 10 This is a cross-sectional view of Embodiment 2 of the arm strength training device of this utility model. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings.

[0030] like Figures 1 to 10 As shown, this embodiment provides an arm strength training device, including a spring tube 1 and two handles 2. The spring tube 1 is a cylindrical helical spring tube with a certain length. The entire spring tube 1 has a certain elasticity. The hands hold both ends of the spring tube 1 and bend it. Under the action of elasticity, it rebounds and repeats the same action to achieve arm training. It includes a middle main body 11 with a larger diameter and two ends 12 with a smaller diameter located at both ends of the middle main body 11. The two handles 2 are respectively fixedly sleeved on the two ends 12, which has the advantages of simple structure and convenient assembly and disassembly.

[0031] In this embodiment, a transition section 13 with a gradually decreasing diameter from the middle main body 11 to each end 12 is provided between both ends of the middle main body 11 and the two end 12.

[0032] In this embodiment, two limiting members 3 are also included. The two handles 2 are respectively sleeved on the ends of the two ends 12 near the middle main body 11. The two limiting members 3 are respectively screwed on the ends of the two ends 12 away from the middle main body 11 to prevent the two handles 2 from coming off the two ends 12 and improve the user's grip.

[0033] In this embodiment, both handles 2 include a gripping part 21 and a stop part 22. The stop part 22 is sleeved on the transition section 13, and the gripping part 21 is sleeved on the corresponding end 12. The end of each end 12 away from the middle main body 11 is exposed on the gripping part 21.

[0034] like Figures 4-5 In the preferred embodiment 1, each of the two limiting members 3 is provided with a threaded connection hole 31 that is adapted to the end of the corresponding end 12 away from the middle main body 11. The two limiting members 3 are respectively threaded through the threaded connection hole 31 to the end of the corresponding end 12 away from the middle main body 11. The limiting members 3 are threaded on the outside of the grip part 21. When exercising by holding the grip part 21 with both hands, the handle 2 is prevented from slipping off the end 12, thus protecting the user's safety.

[0035] like Figures 6-8 In the preferred embodiment 2, each grip 2 has an external threaded connection 211 at the end of the grip portion 21 away from the stop portion 22. Each limiting member 3 has a threaded connection hole 31 including a first threaded connection hole section 311 that is adapted to and threadedly connected to the external threaded connection portion 211 and a second threaded connection hole section 312 that is adapted to and threadedly connected to the end of the corresponding end 12 away from the middle main body portion 11. The limiting member 3 is screwed on the outside of the grip portion 21 to prevent the grip 2 from slipping off the end 12 when exercising by gripping the grip portion 21 with both hands, thus protecting the user's safety.

[0036] In this embodiment, the length of each end 12 is greater than the length of the grip 21, and the length of each handle 2 is greater than the length of each limiting member 3.

[0037] In this embodiment, the length of the middle main body 11 is more than twice the length of each end 12, ensuring that the length of the middle main body 11 is suitable for the user's needs when exercising.

[0038] In this embodiment, the two adjacent spring coils of the middle main body 11 and the two end 12 are in contact with each other.

[0039] In this embodiment, the pitch between two adjacent spring coils of the middle main body 11 and the two end 12 is less than 2 mm.

[0040] The above description is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the scope of the present utility model patent application and the description of the utility model shall still fall within the scope of the present utility model patent.

Claims

1. An arm strength exerciser characterized in that: it comprises a spring tube and two handles; the spring tube is a cylindrical helical spring tube with a length, which comprises a middle main body part with a larger diameter and two end parts with a smaller diameter located at both ends of the middle main body part; the two handles are respectively fixedly sleeved on the two end parts.

2. A strength exerciser according to claim 1, wherein: a transition section gradually decreasing in diameter from the middle main body part to each end part is arranged at both ends of the middle main body part and between the middle main body part and the two end parts.

3. A strength exerciser according to claim 2 wherein: it further comprises two limiting members, the two handles are respectively sleeved on one end of the two end parts close to the middle main body part, and the two limiting members are respectively screwed on the other end of the two end parts away from the middle main body part to limit the two handles from being pulled out of the two end parts.

4. A strength exerciser according to claim 3 wherein: the two handles each comprise a holding part and a stop part, the stop part is sleeved on the transition section, the holding part is sleeved on the corresponding end part, and the other end of each end part away from the middle main body part is exposed out of the holding part.

5. A strength exerciser according to claim 4 wherein: the two limiting members each have a threaded connection hole matched with the other end of the corresponding end part away from the middle main body part, and the two limiting members are respectively screwed on the other end of the corresponding end part away from the middle main body part through the threaded connection hole.

6. A strength trainer as claimed in claim 5, characterized in that: the other end of the holding part of each handle away from the stop part is provided with an external threaded connection part, and the threaded connection hole of each limiting member comprises a first threaded connection hole section matched with and threadedly connected with the external threaded connection part and a second threaded connection hole section matched with and threadedly connected with the other end of the corresponding end part away from the middle main body part.

7. A strength exerciser according to claim 4 or 5 or 6 wherein: the length of each end part is greater than the length of the holding part, and the length of each handle is greater than the length of each limiting member.

8. A strength builder as defined in claim 1 or 2 or 3 or 4 or 5 or 6 wherein: the length of the middle main body part is more than twice the length of each end part.

9. A strength builder as defined in claim 1 or 2 or 3 or 4 or 5 or 6 wherein: the adjacent two spring coils of the middle main body part and the two end parts are in contact with each other.

10. A strength builder as defined in claim 1 or 2 or 3 or 4 or 5 or 6 wherein: the pitch between the adjacent two spring coils of the middle main body part and the two end parts is less than 2 mm.

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