Body-building rod

Abstract

A fitness rod comprises a rod body and a grab handle. The rod body is of a spiral spring structure and comprises a vibration part, a transition part and a connecting part which are integrally formed. The vibration part and the connecting part are in a cylindrical spiral spring shape, the transition part is in a conical spiral spring shape which is reduced from the vibration part to the connecting part, and the grab handle is fixedly connected with the connecting part; when a hand holds the grab handle and swings or swings the fitness rod, the vibration part can be driven to elastically vibrate in the swinging or swinging direction. According to the body-building rod, the connecting part adopts the reducing structure, so that not only is the general design of the grab handle facilitated, but also the body-building rod is comfortable and powerful to hold during use and is not easy to loosen.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of body -building equipment especially is concerned with a body -building bar. BACKGROUND

[0002] A connecting structure of a body -building device is disclosed in Chinese patent document CN222163177U, which comprises a detachable handle and an elastic rod. The elastic rod is provided with a spring part connected with the handle. The handle is provided with a mounting protrusion. The mounting protrusion is provided with a spiral groove. The spring part is sleeved on the mounting protrusion and cooperates with the spiral groove. The cooperation of the spring part and the spiral groove fixes the handle and the elastic rod relatively. The handle reciprocates, and the spring part makes the handle vibrate.

[0003] In this structure, since the elastic rod adopts an integral same-diameter structure design, the following defects exist: first, the handle cannot be used between different rod diameters of the elastic rod, leading to inconvenience in replacement and maintenance, resource waste, etc.; second, the handle is too thick, especially for the body -building bar with large rod diameter, the handle size is even thicker, causing the user to hold uncomfortably or lack of grip strength, resulting in action deformation and reducing exercise efficiency, etc.; third, the length of the elastic rod used for connecting with the handle is too short, causing small contact area between the two, which is easy to cause loose connection and loose phenomenon in use. SUMMARY

[0004] The utility model aims at overcoming the above-mentioned prior art deficiencies, and provides a body -building bar with an integral different-diameter spiral spring structure, which not only facilitates the universal design of the handle, but also makes the body -building bar comfortable and powerful to hold during use, and the handle is firmly connected and not easy to loosen, etc.

[0005] The utility model achieves the purpose by the following technical solutions:

[0006] A body -building bar comprises a rod body and a handle. The rod body is a spiral spring structure, which comprises a vibration part, a transition part and a connecting part integrally formed and connected in sequence. The vibration part and the connecting part are both cylindrical spiral springs, and the outer diameter size and the pitch size of the connecting part are smaller than those of the vibration part. The transition part is a conical spiral spring that shrinks in diameter from the vibration part to the connecting part. The handle is detachably or non-detachably fixedly connected with the connecting part. When the handle is held and the body -building bar is swung or swung, the vibration part can be elastically vibrated along the swinging or swinging direction.

[0007] Further, the pitch size of the transition part is the same as that of the connecting part, the length size of the vibration part is more than twice the length size of the connecting part, and the length size of the transition part is smaller than the length size of the connecting part.

[0008] Further, the vibration part, the transition part and the connecting part are integrally made of a metal spring wire, the pitch size of the transition part and the connecting part is the same as the diameter size of the metal spring wire, and the pitch size of the vibration part is more than twice the diameter size of the metal spring wire.

[0009] As an embodiment, the handle comprises a handle front end, a handle body and a handle rear end which are integrally formed and sequentially connected, the handle front end, the handle body and the handle rear end are located on the same axis, and the outer diameter size of the handle body is smaller than the outer diameter size of the handle front end and the handle rear end.

[0010] Further, the handle has a hollow cavity which is open at the handle front end, the hollow cavity comprises a first chamber which is located at the opening end and used for accommodating the transition part, and a second chamber which is used for accommodating the connecting part, the first chamber is shaped to match the outer contour of the transition part, and the first chamber and the second chamber are in communication and located on the same axis.

[0011] Preferably, a first helical groove is formed on the inner wall of the second chamber to match the outer peripheral surface of the connecting part, so as to realize the helical connection between the handle and the connecting part.

[0012] Alternatively, the hollow cavity further comprises a third chamber which is located in the handle rear end, the third chamber is in communication with the second chamber and located on the same axis, and the third chamber has a first connecting column which is integrally formed with the third chamber and extends to the second chamber, the first connecting column is sleeved in the inner diameter of the connecting part, and a second helical groove is formed on the outer wall of the first connecting column to match the inner peripheral surface of the connecting part, so as to realize the helical connection between the handle and the connecting part.

[0013] As another embodiment, the handle comprises a handle front end, a handle body and an end cover which are sequentially arranged and located on the same axis, the handle front end and the handle body are integrally formed, the end cover is separately arranged with the handle body, and the outer diameter size of the handle body is smaller than the outer diameter size of the handle front end and the end cover.

[0014] Further, the handle front end is sleeved on the transition part, the handle body is sleeved on the connecting part, the end cover is provided with a second connecting column which extends to the handle front end, the second connecting column is sleeved in the inner diameter of the connecting part, a third helical groove is formed on the outer wall of the second connecting column to match the inner peripheral surface of the connecting part, so as to realize the helical connection between the end cover and the connecting part, and the inner side of the end cover is pressed against the handle body, so that the handle body cannot be loosened out of the connecting part.

[0015] The end of the vibration part which is away from the transition part is a free end, a soft rubber sleeve is sleeved on the free end, the pitch size of the free end is equal to the diameter size of the metal spring wire, and a hanging rope is connected to the handle.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model discloses a body of health body building stick adopts the spiral spring structure design of different diameter integrally, more reasonable and reliable compared with prior art, specifically speaking, because adopt the structure design of the transition part from the vibration part shrinkage to the connecting part, so: on one hand, in the face of the use demand of different diameter specification health body building stick of people, only need to design a plurality of different diameter size vibration part, and the connecting part can adopt the diameter size of same specification, thereby make the design a pair of handle matched with the connecting part can be used in a variety of different diameter specification health body building stick, thereby save resources, reduce the cost, and improve the convenience of product maintenance, on the other hand, handle can with the shrinkage design of connecting part and achieve more reasonable thick and thin, thereby be favorable to improve the comfort of health body building stick when holding, and ensure the holding tenacity, action is not influenced negatively, moreover, increase the connecting length of body and handle in the axial direction, make the contact area of handle and body increase, thereby improve the connection firmness of handle and body, be favorable to avoid the phenomenon of loosening in use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a health body building stick sectional view schematic drawing of the utility model.

[0019] Figure 2 It is the appearance schematic drawing of the body of the utility model.

[0020] Figure 3 It is the vibration part sectional view local enlarged local schematic drawing on the body of the utility model.

[0021] Figure 4 It is the transition part sectional view local enlarged local schematic drawing on the body of the utility model.

[0022] Figure 5 It is the connecting part sectional view local enlarged local schematic drawing on the body of the utility model.

[0023] Figure 6 It is the handle sectional view schematic drawing of the first embodiment of the utility model.

[0024] Figure 7 It is the handle sectional view schematic drawing of the second embodiment of the utility model.

[0025] Figure 8 It is the handle sectional view schematic drawing of the third embodiment of the utility model. DETAILED DESCRIPTION

[0026] The utility model will be further explained in detail in connection with the embodiment given below.

[0027] The first embodiment of the utility model of a health body building stick is Figures 1 to 6As shown, the body 1 is a spiral spring structure, and the body 1 comprises a vibration part 11, a transition part 12 and a connecting part 13 which are integrally formed and sequentially connected, the vibration part 11 and the connecting part 13 are both in the shape of a cylindrical spiral spring, the outer diameter size D1 and the pitch size T1 of the connecting part 13 are smaller than the outer diameter size D2 and the pitch size T2 of the vibration part 11 respectively, and the transition part 12 is in the shape of a conical spiral spring which is tapered from the vibration part 11 to the connecting part 13.

[0028] The pitch size T3 of the transition part 12 is the same as the pitch size T1 of the connecting part 13.

[0029] The handle 2 is made of plastic material, and the vibration part 11, the transition part 12 and the connecting part 13 are integrally made of metal spring wire.

[0030] The pitch size T2 of the vibration part 11 is more than twice of the diameter size D of the metal spring wire.

[0031] The handle 2 comprises a handle front end 21, a handle body 22 and a handle rear end 23 which are integrally formed and sequentially connected, the handle front end 21, the handle body 22 and the handle rear end 23 are all located on the same axis, and the outer diameter size of the handle body 22 is smaller than the outer diameter sizes of the handle front end 21 and the handle rear end 23.

[0032] The handle 2 has a hollow cavity which is open at the handle front end 21, the hollow cavity comprises a first chamber 24 which is located at the opening end and used for accommodating the transition part 12, and a second chamber 25 which is used for accommodating the connecting part 13, the shape of the first chamber 24 is matched with the outer contour of the transition part 12, and the first chamber 24 and the second chamber 25 are communicated and located on the same axis.

[0033] The inner wall of the second chamber 25 has a first spiral groove 221 that matches the outer peripheral surface of the connecting part 13, so as to realize the spiral connection between the handle 2 and the connecting part 13.

[0034] The end of the vibrating part 11 furthest from the transition part 12 is the free end 14, which is fitted with a soft rubber sleeve 2. The soft rubber sleeve 2 protects the free end 14 from damage, thereby increasing its service life and improving the aesthetics of the exercise bar. Furthermore, the pitch dimension T4 of the free end 14 is equal to the diameter D of the metal spring wire, thus increasing the inertia of the vibrating part 11 during use. In addition, the free end 14 is integrally formed with the vibrating part 11, preventing it from falling off and making the structure more stable. A hanging rope 4 is connected to the handle 2. During exercise, the hanging rope 4 can be looped around the wrist to prevent the handle 2 from slipping out of the hand, further protecting the user's safety.

[0035] As described above, the installation and disassembly operation principle of the first embodiment of this utility model is as follows: the end of the connecting part 13 on the rod body 1 is aligned with and abuts against the second chamber 25 inside the handle 2. By rotating the rod body 1 and the handle 2 relative to each other, the connecting part 13 on the rod body 1 is screwed into the first spiral groove 221 on the handle 2, thereby realizing the installation of the rod body 1 and the handle 2. Therefore, the installation of the rod body 1 and the handle 2 is very convenient. Similarly, by rotating the rod body 1 and the handle 2 in opposite directions, the disassembly of the rod body 1 and the handle 2 can be realized.

[0036] For example, in the second embodiment of this utility model Figures 1 to 7 As shown, the difference from the first embodiment is that the hollow cavity also includes a third chamber 26 located in the rear end 23 of the handle. The third chamber 26 communicates with the second chamber 25 and is located on the same axis. The third chamber 26 has a first connecting post 27 integrally formed with it and extending to the second chamber 25. The first connecting post 27 is sleeved in the inner diameter of the connecting part 13. A second spiral groove 271 adapted to the inner circumferential surface of the connecting part 13 is opened on the outer wall of the first connecting post 27 to realize the spiral connection between the handle 2 and the connecting part 13.

[0037] As described above, the installation and disassembly operation principle of the second embodiment of this utility model is as follows: The end of the connecting part 13 on the rod body 1 passes into the handle body 22 and abuts against the end face of the first connecting post 27 inside the handle 2. By rotating the rod body 1 and the handle 2 relative to each other, the connecting part 13 is screwed into the second spiral groove 271 on the first connecting post 27, thus realizing the installation of the rod body 1 and the handle 2. Similarly, by rotating the rod body 1 and the handle 2 in opposite directions, disassembly can be completed.

[0038] For example, the third embodiment of this utility model Figures 1 to 6 , Figure 8The difference between the first embodiment and the third embodiment is that the handle 2 comprises a handle front end 21, a handle body 22 and an end cover 28 arranged in sequence and located on the same axis, the handle front end 21 is integrally formed with the handle body 22, the end cover 28 is arranged separately from the handle body 22, the outer diameter of the handle body 22 is smaller than the outer diameter of the handle front end 21 and the end cover 28, the handle front end 21 is sleeved on the transition part 12, the handle body 22 is sleeved on the connecting part 13, the end cover 28 is provided with a second connecting column 29 extending to the handle front end 21, the second connecting column 29 is sleeved in the inner diameter of the connecting part 13, the outer wall of the second connecting column 29 is provided with a third spiral groove 291 matched with the inner peripheral surface of the connecting part 13, so that the end cover 28 is spirally connected with the connecting part 13, and the inner side of the end cover 28 abuts against the handle body 22, so that the handle body 2 cannot be loosened out of the connecting part 13.

[0039] As described above, the mounting and dismounting operation principle of the third embodiment of the utility model is as follows: the connecting part 13 on the rod body 1 is inserted into the handle body 22, the second connecting column 29 on the end cover 28 abuts against the end face of the connecting part 13, the connecting part 13 is rotated into the third spiral groove 291 on the end cover 28 by relative rotation of the rod body 1 and the end cover 28, and the inner side of the end cover 28 abuts against the handle body 22, so that the rod body 1 and the handle 2 are mounted. Similarly, the rod body 1 and the handle 2 are dismounted by relative reverse rotation of the rod body 1 and the end cover 28.

[0040] The length of the rod body 1 in the utility model is 330-450mm, and the length of the vibration part 11 is 300-400mm.

[0041] The above is only a preferred embodiment of the utility model, and cannot limit the scope of the utility model, that is, any simple equivalent change and modification made according to the patent application range and the utility model description content still belongs to the scope covered by the utility model patent.

Claims

1. A fitness bar comprising a bar body and a handle; characterised in that: The rod body is a spiral spring structure, which comprises a vibration part, a transition part and a connecting part which are integrally formed and sequentially connected; the vibration part and the connecting part are both in the shape of a cylindrical spiral spring, and the outer diameter size and the pitch size of the connecting part are smaller than those of the vibration part; the transition part is in the shape of a conical spiral spring which is tapered from the vibration part to the connecting part; the handle is detachably or non-detachably fixedly connected with the connecting part; when the handle is held and the body-building rod is swung or waved, the vibration part can be driven to elastically vibrate along the swinging or waving direction.

2. A body bar according to claim 1 wherein: The pitch size of the transition part is the same as that of the connecting part, and the length size of the vibration part is more than twice the length size of the connecting part, and the length size of the transition part is smaller than the length size of the connecting part.

3. A body bar according to claim 2 wherein: The vibration part, the transition part and the connecting part are integrally made of a metal spring wire, the pitch size of the transition part and the connecting part is the same as the diameter size of the metal spring wire, and the pitch size of the vibration part is more than twice the diameter size of the metal spring wire.

4. A body bar according to claim 3 wherein: The handle comprises a handle front end, a handle body and a handle rear end which are integrally formed and sequentially connected, and the handle front end, the handle body and the handle rear end are located on the same axis, and the outer diameter size of the handle body is smaller than the outer diameter sizes of the handle front end and the handle rear end.

5. A body bar according to claim 4 wherein: The handle has a hollow cavity which is opened at the handle front end, and the hollow cavity comprises a first chamber which is located at the opening end and used for accommodating the transition part, and a second chamber which is used for accommodating the connecting part, the shape of the first chamber is matched with the outer contour of the transition part, and the first chamber and the second chamber are communicated and located on the same axis.

6. A body bar according to claim 5 wherein: A first spiral groove which is matched with the outer peripheral surface of the connecting part is formed on the inner wall of the second chamber, so as to realize the spiral connection between the handle and the connecting part.

7. A body bar according to claim 5 wherein: The hollow cavity further comprises a third chamber which is located in the handle rear end and communicated with the second chamber and located on the same axis, and the third chamber has a first connecting column which is integrally formed with the third chamber and extends to the second chamber, the first connecting column is sleeved in the inner diameter of the connecting part, and a second spiral groove which is matched with the inner peripheral surface of the connecting part is formed on the outer wall of the first connecting column, so as to realize the spiral connection between the handle and the connecting part.

8. A body bar according to claim 3, wherein: The handle comprises a handle front end, a handle body and an end cover which are sequentially arranged and located on the same axis, the handle front end and the handle body are integrally formed, and the end cover is separately arranged with the handle body, and the outer diameter size of the handle body is smaller than the outer diameter sizes of the handle front end and the end cover.

9. A body bar according to claim 8, wherein: The handle front end is sleeved on the transition part, the handle body is sleeved on the connecting part, the end cover is provided with a second connecting column which extends to the handle front end, the second connecting column is sleeved in the inner diameter of the connecting part, a third spiral groove which is matched with the inner peripheral surface of the connecting part is formed on the outer wall of the second connecting column, so as to realize the spiral connection between the end cover and the connecting part, and the inner side of the end cover is pressed against the handle body, so that the handle body cannot be loosened out of the connecting part.

10. A body bar according to claim 3, wherein: The end of the vibration part which is far away from the transition part is a free end, a soft rubber sleeve is sleeved on the free end, the pitch size of the free end is equal to the diameter size of the metal spring wire, and a hanging rope is connected with the handle.

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