CN217526263U

CN217526263U - Strength chest expander

Info

Publication number: CN217526263U
Application number: CN202220406928.XU
Authority: CN
Inventors: 许明原
Original assignee: Fujian Niufeng Sporting Goods Technology Co ltd
Current assignee: Fujian Niufeng Sporting Goods Technology Co ltd
Priority date: 2021-02-25
Filing date: 2022-02-25
Publication date: 2022-10-04
Anticipated expiration: 2032-02-25

Abstract

The utility model provides a simple structure, convenience of customers adjust a strength chest expander that uses according to self body-building, including being used for fixed band, pulley, pulling force rope, the feeder pillar of being connected with outside mount or body-building apparatus, feeder pillar upper portion is equipped with the connecting hole that supplies the fixed band to pass, fixed band one end is passed through the connecting hole and is connected with the feeder pillar, the pulley divide into first pulley and second pulley, the both sides of feeder pillar are located respectively to first pulley and second pulley, the stay cord divide into first stay cord and second stay cord, first stay cord and second stay cord are around locating respectively on first pulley and the second pulley, the one end and the outside balancing weight of first stay cord and second stay cord are connected, the other end of first stay cord and second stay cord is connected with the grip ring respectively, perhaps the other end of first stay cord and second stay cord is connected with the pull rod that can be used for singlehanded or both hands to grip.

Description

Strength chest expander

Technical Field

The utility model relates to the technical field of fitness equipment, in particular to a strength chest expander.

Background

The life rhythm of modern cities is tense, and especially for some office workers, the office workers often sit in front of a computer to work, rarely do exercises and build bodies, and are poor in physical quality. People sit for a long time or stand for a long time to cause strain of muscles of the waist and the back, generate pain, and cause soreness and pain of the waist and the legs, weakness of limbs and other common occupational diseases, especially for office people working at low positions for a long time. Therefore, people like to do exercise and body-building after working for one day, and stretch the muscles and bones. As shown in fig. 1, a strength chest expander for exercising strength appears on the market, which includes a fixed rope 1 'tied on an external device, a pulley 2' fixedly arranged on the fixed rope 1', a pull rope 3' wound on the pulley 2', a balancing weight 4' connected to one end of the pull rope 3 'through a connecting buckle, a pull belt 5' for pushing and pulling connected to the other end of the pull rope 3 'through a connecting buckle, and grip rings connected to two ends of the pull belt 5', although it can satisfy the use of a user, the strength chest expander has the following disadvantages when in use:

1. pulley 2' is direct to be connected with connecting band 1', and the use limitation that leads to whole chest expander is very big, though can realize the purpose that both hands were taken exercise through setting up pulling force area 5', but, its two grip rings are connected at the both ends in same pulling force area, need liberate both hands, and it is just very big to use the limitation when carrying out the exercise of chest expansion.

2. The length of the fixing rope 1' cannot be changed, so that it cannot be adjusted according to the height requirement of the user, and is not beneficial to the body-building use of the user.

3. When the single-hand strength exercise band is used, a user needs to hold two grip rings at the same time or needs to replace the tension band 5 'with the single grip ring 6', and the universality of simultaneous or alternative use of single and double hands is quite poor.

SUMMERY OF THE UTILITY MODEL

Therefore, to the above-mentioned problem, the utility model provides a simple structure, convenience of customers adjust a strength chest expander of use according to self body-building.

In order to achieve the above object, the technical scheme of the utility model is to provide a strength chest expander, including being used for fixed band, pulley, pulling force rope, the bifurcation frame of being connected with outside mount or body-building apparatus, bifurcation frame upper portion is equipped with the connecting hole that supplies the fixed band to pass, fixed band one end is passed through the connecting hole and is connected with the bifurcation frame, the pulley divide into first pulley and second pulley, the both sides of bifurcation frame are located respectively to first pulley and second pulley, the pulling force rope divide into first stay cord and second stay cord, first stay cord and second stay cord are around locating respectively on first pulley and the second pulley, the one end and the outside balancing weight of first stay cord and second stay cord are connected, the other end of first stay cord and second stay cord is connected with the grip ring respectively, perhaps the other end of first stay cord and second stay cord is connected with the pull rod that can be used to singlehanded or both hands to grip.

The further improvement is that: two hooks are respectively arranged on two sides of the branch frame, and the upper parts of the first pulley and the second pulley are respectively hung on the two hooks.

The further improvement is that: the upper parts of the branch brackets are positioned at the connecting holes and are spirally arranged.

The further improvement is that: the two ends of the first pull rope and the second pull rope are respectively provided with a connecting lug, and the holding ring, the pull rod and the external balancing weight are respectively detachably connected with the connecting lugs through connecting buckles.

The further improvement is that: and the fixing belt is also provided with an adjusting device for adjusting the length of the fixing belt.

The further improvement is that: the adjusting device comprises an adjusting frame, one end of the fixing band is fixedly arranged on the adjusting frame, a stop block is fixedly arranged at the end part of the adjusting frame far away from the fixing band, a clamping block is rotatably arranged on the adjusting frame, the passing fixing band can be abutted and fixed with the stop block by the clamping block, and a clamping and fixing device for clamping and fixing the fixing band is arranged between the clamping block and the adjusting frame.

The further improvement is that: the clamping and fixing device comprises a torsional spring, a connecting rod is fixedly arranged on the adjusting frame, the clamping block is arranged on the adjusting frame through a rotating shaft, the torsional spring sleeve is arranged on the rotating shaft, one end of the torsional spring sleeve is pressed on the clamping block, and the other end of the torsional spring sleeve is pressed on the connecting rod.

The further improvement is that: the clamping block is provided with a first torsion spring groove, the connecting rod is provided with a second torsion spring groove, and the torsion spring is arranged in the first torsion spring groove and the second torsion spring groove.

The further improvement is that: the clamping block is provided with a plurality of anti-skid convex teeth, and the anti-skid convex teeth are positioned on the contact surface with the stop block.

The further improvement is that: the stop block is provided with a plurality of anti-slip threads, and the anti-slip threads are positioned on the contact surface of the stop block and the clamping block.

The further improvement is that: the clamping blocks are provided with releasing plates in an inclined mode.

A branch frame for a strength chest expander comprises a branch frame body, wherein a connecting hole for a fixing belt to pass through is formed in the upper portion of the branch frame body, and hooks are arranged on two sides of the branch frame body respectively.

The utility model has the advantages and the beneficial effects that:

1. simple structure and convenient use. First stay cord and second stay cord are hung on the branch frame through first pulley and second pulley for two hold the ring and set up respectively on first stay cord and second stay cord, liberated both hands, not only convenience of customers expands chest and takes exercise, can carry out single both hands simultaneously or replace the use moreover, have avoided changing body-building apparatus, make it have good commonality, improve body-building person's body-building experience and feel.

2. The length of fixed rope can be adjusted to adjusting device, makes the user adjust according to the required height of oneself, and more be favorable to user's body-building to use.

3. The anti-skidding convex teeth and the anti-skidding lines can enable the clamping blocks and the baffle plates to fix the fixing belt, so that the fixing belt is prevented from skidding, and the use safety is improved.

4. The engaging lug can make things convenient for first stay cord and second stay cord to be connected with the dismouting of external connector link, makes things convenient for the erection joint of outside balancing weight, grip ring or pull rod, and convenience of customers carries out the dismouting, conveniently accomodates.

5. The spiral setting of separation frame and fixed band junction has increased the rigidity of its junction, has improved its security of using.

Drawings

Fig. 1 is a schematic view of a force chest expander in the background art of the present invention.

Fig. 2 is a schematic structural view of a force chest expander according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a force chest expander according to an embodiment of the present invention.

Fig. 4 is a schematic view of a connecting frame structure according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a connection lug according to an embodiment of the present invention.

Fig. 6 is a schematic view of a split structure of an adjusting device according to an embodiment of the present invention.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The first embodiment is as follows:

as shown in fig. 3 to 6, a strength chest expander comprises a fixing strap 1 for connecting with an external fixing frame or a fitness device, a pulley, a tension rope and a sub-frame 3, wherein the upper part of the sub-frame 3 is provided with a connecting hole 32 for the fixing strap 1 to pass through, one end of the fixing strap 1 is connected with the sub-frame 3 through the connecting hole 32, the pulley is divided into a first pulley 4 and a second pulley 5, the first pulley 4 and the second pulley 5 are respectively arranged at two sides of the sub-frame 3, the tension rope is divided into a first pull rope 6 and a second pull rope 7, the first pull rope 6 and the second pull rope 7 are respectively wound on the first pulley 4 and the second pulley 5, one end of the first pull rope 6 and one end of the second pull rope 7 are connected with an external balancing weight 9, the balancing weight 9 can be a dumbbell or a barbell block configured by a user, and other devices, and the other ends of the first pull rope 6 and the second pull rope 7 are respectively connected with a grip ring 11.

In order to facilitate the installation of the first pulley 4 and the second pulley 5 and prevent the first pulley 4 and the second pulley 5 from interfering with each other, two hooks 31 are respectively arranged on two sides of the branch frame 3, and the upper parts of the first pulley 4 and the second pulley 5 are respectively hung on the two hooks 31. The hook 31 is arranged at two ends of the branch frame 3, so that mutual interference and collision when the first pulley 4 and the second pulley 5 are used are avoided, and the use is convenient.

In order to improve the rigidity of the branch frame 3 and increase the force bearing area of the branch frame 3 and the fixing band 1, the upper part of the branch frame 3 is spirally arranged at the connecting hole 32. The junction of the branch frame 3 and the fixing band 11 is spirally arranged, so that the rigidity of the junction is increased, the contact area of the fixing band 1 and the junction is increased, and the use safety of the fixing band is improved.

The two ends of the first pull rope and the second pull rope are respectively provided with a connecting lug, and the holding ring, the pull rod and the external balancing weight are respectively detachably connected with the connecting lugs through connecting buckles.

In order to facilitate the dismounting connection of the first pull rope 6 and the second pull rope 7 with an external connecting buckle and facilitate the mounting connection of the external balancing weight 9 and the holding ring 11, the two ends of the first pull rope 6 and the second pull rope 7 are respectively provided with a connecting lug 8, and the holding ring 11 and the external balancing weight 9 are respectively detachably connected with the connecting lug 8 through the connecting buckle.

In order to facilitate the adjustment of the fixing strap 1, the height of the body builder can be matched with the fixing strap, the body builder is convenient to build body, an adjusting device used for adjusting the length of the fixing strap 1 is further arranged on the fixing strap 1, the adjusting device comprises an adjusting frame 2, one end of the fixing strap 1 is fixedly arranged on the adjusting frame 2, a stop block 21 is arranged on the end portion of the adjusting frame 2 far away from the fixing strap 1, a clamping block 26 is rotatably arranged on the adjusting frame 2, the clamping block 26 can enable the passing fixing strap 1 to be abutted against and fixed by the stop block 21, a torsion spring 23 used for clamping and fixing the fixing strap 1 is arranged between the clamping block 26 and the adjusting frame 2, a connecting rod 24 is fixedly arranged on the adjusting frame 2, the clamping block 26 is arranged on the adjusting frame 2 through a rotating shaft 28, the torsion spring 23 is sleeved on the rotating shaft 28, one end of the torsion spring is pressed on the clamping block 26, and the other end of the torsion spring is pressed on the connecting rod 24.

In order to prevent the torsion spring 23 from being separated from the clamping block 26, the clamping block 26 is provided with a first torsion spring groove 22, and the connecting rod 24 is provided with a second torsion spring groove 23.

In order to fix the fixing band 1 by the clamping block 26 and the baffle plate and prevent the fixing band 1 from slipping, a plurality of anti-slip convex teeth 25 are arranged on the clamping block 26 in an array manner, the anti-slip convex teeth 25 are positioned on the contact surface with the stop block 21, a plurality of anti-slip patterns (not shown in the figure) are arranged on the stop block 21, and the anti-slip patterns are positioned on the contact surface with the clamping block 26.

In order to facilitate the pressing of the clamping block 26 and the adjustment of the fixing strap 1, a release plate 27 is provided on the clamping block 26.

When the fixing band fixing device is used, the fixing band 1 bypasses external equipment, then the fixing band is wound back to the adjusting frame 2, the release plate 27 is pressed, the torsion spring 23 deforms, then the torsion spring passes through the position between the clamping block 26 and the stop block 21, the release plate 27 is loosened, the torsion spring 23 resets, the clamping block 26 resists the fixing band 1, the fixing band 1 and the stop block 21 tightly resist, the fixing band 1 is fixed, namely, the fixing band 1 is installed on the external equipment, and similarly, when the length of the fixing band 1 is to be adjusted, the fixing band 1 can be adjusted only by pressing the release plate 27. Then, the first pulley 4 and the second pulley 5 are respectively hung on the connecting ring 31 of the connecting frame 3, then the first pull rope 6 and the second pull rope are wound into the first pulley 4 and the second pulley 5, then one end of the first pull rope 6 and one end of the second pull rope 7 are connected with the balancing weight 9 through the external connecting buckle, and the other end of the first pull rope 6 and one end of the second pull rope 7 are connected with the upper pull rod 10 or the holding ring 11. Because the holding rings 11 of the two hands are respectively controlled by the first pull rope 6 and the second pull rope 7, the user can exercise with one hand in the exercise process, the movable range of the first pull rope 6 and the second pull rope 7 is large, the expansion range is large, the chest expanding movement can be performed, and the exercise function is increased.

Example two:

as shown in fig. 2, according to the above solution, a pull rod 10 for one-hand or two-hand holding is connected to the other ends of the first rope 6 and the second rope 7.

Having shown and described the basic principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims and their equivalents.

Claims

1. The utility model provides a strength chest expander, is including being used for fixed band, pulley, the pulling force rope be connected with outside mount or body-building apparatus, its characterized in that: still include the feeder pillar, feeder pillar upper portion is equipped with the connecting hole that supplies the fixed band to pass, fixed band one end is passed through the connecting hole and is connected with the feeder pillar, the pulley divide into first pulley and second pulley, the both sides of feeder pillar are located respectively to first pulley and second pulley, the pulling force rope divide into first stay cord and second stay cord, first stay cord and second stay cord are around locating respectively on first pulley and the second pulley, the one end and the outside balancing weight of first stay cord and second stay cord are connected, the other end of first stay cord and second stay cord is connected with the grip ring respectively, perhaps the other end of first stay cord and second stay cord is connected with the pull rod that can be used to singlehanded or both hands to grip.

2. A force chest developer according to claim 1, wherein: two hooks are respectively arranged on two sides of the branch frame, and the upper parts of the first pulley and the second pulley are respectively hung on the two hooks.

3. A power chest expander according to claim 1 or 2, wherein: the upper parts of the branch brackets are positioned at the connecting holes and are spirally arranged.

4. A power chest expander as claimed in claim 1, wherein: the two ends of the first pull rope and the second pull rope are respectively provided with a connecting lug, and the holding ring, the pull rod and the external balancing weight are respectively detachably connected with the connecting lugs through connecting buckles.

5. A power chest expander as claimed in claim 1, wherein: and the fixing belt is also provided with an adjusting device for adjusting the length of the fixing belt.

6. A power chest expander as claimed in claim 5, wherein: the adjusting device comprises an adjusting frame, one end of the fixing band is fixedly arranged on the adjusting frame, a stop block is fixedly arranged at the end part of the adjusting frame far away from the fixing band, a clamping block is rotatably arranged on the adjusting frame, the passing fixing band can be abutted and fixed with the stop block by the clamping block, and a clamping and fixing device for clamping and fixing the fixing band is arranged between the clamping block and the adjusting frame.

7. A force chest developer according to claim 6, wherein: the clamping and fixing device comprises a torsional spring, a connecting rod is fixedly arranged on the adjusting frame, the clamping block is arranged on the adjusting frame through a rotating shaft, the torsional spring sleeve is arranged on the rotating shaft, one end of the torsional spring sleeve is pressed on the clamping block, and the other end of the torsional spring sleeve is pressed on the connecting rod.

8. A power chest expander as claimed in claim 7, wherein: the clamping block is provided with a first torsion spring groove, the connecting rod is provided with a second torsion spring groove, and the torsion spring is arranged in the first torsion spring groove and the second torsion spring groove.

9. A power chest expander as claimed in claim 6, wherein: the clamping block is provided with a plurality of anti-skid convex teeth, and the anti-skid convex teeth are positioned on the contact surface with the stop block.

10. A power chest expander as claimed in claim 6, wherein: the stop block is provided with a plurality of anti-slip threads, and the anti-slip threads are positioned on the contact surface of the stop block and the clamping block.

11. A power chest expander as claimed in claim 6, wherein: the clamping block is provided with a release plate in an inclined mode.

12. A power chest expander as claimed in claim 1, wherein: the upper part of the sub-bracket body is provided with a connecting hole for the fixing belt to pass through, and the two sides of the sub-bracket body are respectively provided with a hook.