CN207708394U - A kind of fitness and body-building chest expander - Google Patents

Abstract

The utility model provides a fitness and bodybuilding tensioner, which comprises: a strip-shaped elastic body, and two pull ring assemblies respectively arranged at both ends of the elastic body, each pull ring assembly includes a tension ring and a Connecting the rotating shaft, the tension ring is connected with the elastic body through the connecting shaft, the tension ring is an open structure, and the vertical sides of the opening are correspondingly provided with through holes, and the two ends of the connecting shaft are respectively passed through through two through holes, and a rotary handle is respectively provided at the two ends of the connecting shaft, and the two rotary handles are respectively located on both sides of the outside of the tension ring, and the connecting shaft can be rotated through the rotary handle, The two lateral ends of the tension ring opening are respectively provided with threaded holes communicating with the through hole, and lock nuts are provided in the threaded holes, and the rotation of the connecting shaft can be locked by the lock nuts. . The beneficial effects of the utility model are: simple structure, easy to carry and adjust.

Description

A fitness and bodybuilding puller

technical field

The utility model relates to the technical field of fitness equipment, in particular to a fitness and bodybuilding puller.

Background technique

The tensioner is a device suitable for mass fitness exercises. The advantage of using a tensioner to exercise is that the biceps is a muscle with two muscle heads, and its main function is to bend the arms. When bending the arm, another muscle is also used, the brachialis. The brachialis muscles can only be fully exercised when doing some forearm lifting exercises, such as high-position tension machine curls or reverse high-position tension machine toys. In addition, the main muscle on the upper part of the forearm, the flexor brachii, also plays a role in the flexion of the arms, and the flexor brachii can be strengthened by bending the side of the tensioner.

The tensioner generally includes a high-quality handle and a high-strength tension spring. The length of the handle is 150 cm, the length of the handle at both ends is 30 cm, the length of the tension spring is 120 cm, and the maximum expansion is 120 cm, which can meet the fitness needs of people of different heights. .

With the development of the times, tensioners have also begun to follow the fashion path. The clumsy tensioner can only be used at home. Because it is large and heavy, it is not easy to carry or has very poor portability, so it cannot meet the requirements of people for exercising anytime and anywhere. At the same time, the length of the elastic body of the existing tensioner is usually fixed and non-adjustable, which is difficult to meet the needs of people with different arm spans.

Utility model content

The purpose of the utility model is to provide a fitness and bodybuilding tensioner in order to overcome the deficiencies of the prior art.

The utility model is realized through the following technical solutions:

The utility model provides a fitness and bodybuilding tensioner, which comprises: a strip-shaped elastic body, and two pull ring assemblies respectively arranged at both ends of the elastic body, each pull ring assembly includes a tension ring and Connecting the rotating shaft, the tension ring is connected with the elastic body through the connecting shaft, the tension ring is an open structure, the vertical sides of the opening are correspondingly provided with through holes, and the two ends of the connecting shaft respectively pass through through two through holes, and a rotary handle is respectively provided at the two ends of the connecting shaft, and the two rotary handles are respectively located on both sides of the outside of the tension ring, and the connecting shaft can be rotated through the rotary handle, The two lateral ends of the tension ring opening are respectively provided with threaded holes communicating with the through hole, and lock nuts are provided in the threaded holes, and the rotation of the connecting shaft can be locked by the lock nuts. .

Preferably, the elastic body is a strong elastic band or an elastic flexible hose.

Preferably, the elastic body is integrally connected with the connecting shaft.

Preferably, the end of the tension ring away from its opening is an ergonomic and comfortable handle.

Preferably, the handle is integrally connected with the connecting shaft.

The beneficial effect of the utility model is: the structure is simple, the elastic body can be partially or completely rolled up, it is suitable for different users to carry out training, and it is convenient to carry.

Description of drawings

Fig. 1 is a schematic structural view of a fitness and bodybuilding tensioner provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to Fig. 1, Fig. 1 is a schematic structural diagram of the fitness and bodybuilding tensioner provided by the embodiment of the present utility model.

The embodiment of the utility model provides a bodybuilding and bodybuilding tensioner, which includes: a strip-shaped elastic body 1, and two pull ring assemblies respectively arranged at both ends of the elastic body 1, each pull ring assembly It includes a tension ring 2 and a connecting shaft 3, the tension ring 2 is connected to the elastic body 1 through the connection shaft 3, the tension ring 2 is an open structure, and the vertical sides of the opening are correspondingly provided with through holes , the two ends of the connecting shaft 3 pass through two through holes respectively, and a turning handle 4 is respectively arranged at the two ends of the connecting rotating shaft 3, and the two turning handles 4 are respectively located on the outside of the tension ring 2 On both sides, the connecting rotating shaft 3 can be rotated by the turning handle 4, and the two lateral ends of the opening of the tension ring 2 are respectively provided with threaded holes communicating with the through holes, and the threaded holes are provided with The locking nut 5 can lock the rotation of the connecting shaft 3 through the locking nut 5 .

The fitness and bodybuilding tensioner proposed in the above embodiments has a simple structure, can partially or completely roll up the elastic body, is suitable for training by different users, and is easy to carry.

In order to facilitate the understanding of the fitness and bodybuilding tensioner provided by the embodiment of the utility model, it will be described in detail below in conjunction with specific embodiments.

Continuing to refer to Fig. 1, the utility model embodiment provides a kind of fitness and bodybuilding tensioner, and this fitness and bodybuilding tensioner comprises the elongated elastic body 1, and two pull-ring components that are respectively arranged at the two ends of the elastic body 1, the elastic body 1 is Strong elastic band or elastic flexible hose, light and easy to roll, each pull ring assembly includes a pull ring 2 and a connecting shaft 3, the pulling ring 2 is connected to the elastic body 1 through the connecting shaft 3, and the elastic body 1 is integrated with the connecting shaft 3 connection, the tension ring 2 is an open structure, and the two sides of the opening are provided with through holes correspondingly, and the two ends of the connecting shaft 3 pass through the two through holes respectively, and two ends of the connecting shaft 3 are provided with a Rotating handle 4, two rotating handles 4 are respectively located on both sides of the outside of the tension ring 2, and are integrally connected with the connecting shaft 3, the connecting shaft 3 can be rotated through the rotating handle 4, and the two ends of the opening of the tension ring 2 are respectively arranged There is a threaded hole communicating with the through hole, and a lock nut 5 is arranged in the threaded hole, and the rotation of the connecting shaft 3 can be locked by the lock nut 5 . In addition, the end of the tension ring 2 away from the opening is an ergonomic and comfortable handle, which is convenient for the user to perform training.

When in use, the lock nut 5 is loosened, and the rotating shaft 3 is driven to rotate through the handle 4, so that the elastic body 1 can be rolled up and released. Length for best training effect.

It can be seen from the above description that the fitness and bodybuilding tensioner proposed in this embodiment has a simple structure, can partially or completely roll up the elastic body, is suitable for different users for training, and is easy to carry.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model should be included in the utility model. within the scope of protection.

Claims (5)

1. A fitness and bodybuilding puller, characterized in that it comprises: an elongated elastic body, and two pull ring assemblies respectively arranged at the two ends of the elastic body, each pull ring assembly includes a pull ring and a connecting shaft, The tension ring is connected with the elastic body through the connection shaft, the tension ring is an open structure, and the vertical sides of the opening are correspondingly provided with through holes, and the two ends of the connection shaft respectively pass through two through holes, and a handle is provided at the two ends of the connecting shaft, and the two handles are respectively located on both sides of the outside of the tension ring, and the connecting shaft can be rotated through the handle, and the pulling force The two lateral ends of the ring opening are respectively provided with threaded holes communicating with the through holes, and locking nuts are provided in the threaded holes, and the rotation of the connecting shaft can be locked by the locking nuts. 2. The fitness and bodybuilding tensioner according to claim 1, wherein the elastic body is a strong elastic band or an elastic flexible hose. 3. The fitness and bodybuilding tensioner according to claim 1, characterized in that, the elastic body is integrally connected with the connecting shaft. 4. The fitness and bodybuilding tensioner according to claim 1, characterized in that, the end of the tension ring away from its opening is an ergonomic and comfortable handle. 5. The fitness and bodybuilding tensioner according to claim 1, characterized in that, the handle is integrally connected with the connecting shaft.