CN212262283U

CN212262283U - Adjustable chest expander

Info

Publication number: CN212262283U
Application number: CN202020586904.8U
Authority: CN
Inventors: 胡红阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-18
Filing date: 2020-04-18
Publication date: 2021-01-01
Anticipated expiration: 2030-04-18

Abstract

The utility model belongs to the technical field of fitness equipment, in particular to an adjustable chest expander, which comprises a one-way oil cylinder, two rotating parts and two rotating arms, wherein the bracket is arranged on the bracket, the two rotating parts drive the one-way oil cylinder to move in one way through the two rotating arms, a plurality of first mounting positions and second mounting positions are arranged on the wheels, and the rotating arms can be fixed on the first mounting positions or the second mounting positions; when the rotating arm is positioned at the first mounting position, the rotating arm can be folded inwards; when the rocking arm is located the second installation position, can outwards pull the rocking arm, the utility model aims to provide a simple structure can realize thereby that the arm inwards takes exercise and the arm outwards pulls the adjustable chest expander of the exercise mode of rocking arm through adjusting rocking arm angle.

Description

Adjustable chest expander

Technical Field

The utility model belongs to the technical field of body-building equipment, in particular to adjustable chest expander.

Background

The chest expander is a body-building apparatus, and is mainly used for exercising arm strength and pectoral muscles and assisting in exercising wrist strength. Along with the development of society, people have more and more requirements on fitness and the requirements on fitness equipment are improved. The existing chest developer has a single use mode, and two arms can only be drawn together inwards in a single direction, so that the training mode can not meet the exercise requirements of modern people, and the existing chest developer needs to be improved.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a simple structure can realize through adjusting rocking arm angle that the arm inwards takes exercise and the arm outwards pulls the adjustable chest expander of the exercise mode of rocking arm.

The purpose of the utility model is realized like this:

an adjustable chest expander comprises a one-way oil cylinder, two rotating parts and two rotating arms, wherein a support is arranged on the support, the two rotating parts drive the one-way oil cylinder to move in a one-way mode through the two rotating arms, the rotating parts are provided with a plurality of first mounting positions and second mounting positions, and the rotating arms can be fixed on the first mounting positions or the second mounting positions; when the rotating arm is positioned at the first mounting position, the rotating arm can be folded inwards; when the swivel arm is in the second mounting position, the swivel arm can be pulled outwards.

By adopting the structure, the arm of a user can be folded inwards when the rotating arm is positioned at the first mounting position by the structure that the rotating arm is arranged at the first mounting position and the second mounting position which are different; when the rotating arm is positioned at the second mounting position, the arm of a user can pull the rotating arm outwards; when the user wants to take exercise with a certain installation position, just can install the rocking arm on a certain installation position, realize the function of two kinds of exercise modes of a chest expander, richened the exercise mode, increased and taken exercise the effect.

The utility model discloses further set up to: the angle formed by the rotating arm arranged at the second mounting position is larger than the angle formed by the rotating arm arranged at the first mounting position.

The utility model discloses further set up to: the angle formed by the two rotating arms arranged on the first installation position is an inferior angle, and the angle formed by the two rotating arms arranged on the second installation position is a superior angle.

After adopting above-mentioned structure, owing to be one-way hydro-cylinder, realize two exercise actions of pressing and drawing through the different angles that two rocking arms formed, only need adjust the rocking arm with rotate the hookup location of piece can, convenient operation.

The utility model discloses further set up to: the installation positions of the first installation position and the second installation position are provided with at least two.

After adopting above-mentioned structure, increase the quantity of installation position and can make the user select the exercise mode under the different angle states according to oneself exercise needs, the angle between the rocking arm is the less, and required power is also the less.

The utility model discloses further set up to: the first installation position and the second installation position are symmetrically arranged relative to the hinge point of the rotating part.

The utility model discloses further set up to: the hinge point of the rotating part is the central point.

After the structure is adopted, the rotating arm is hinged at the central point of the rotating part, and the first mounting position and the second mounting position are symmetrically arranged relative to the central point, so that the rotating arm can be conveniently and fixedly mounted between the two mounting positions without completely disassembling and reassembling the rotating arm and the rotating part, and the operation is simpler.

The utility model discloses further set up to: the two rotating pieces are connected with the telescopic shaft of the one-way oil cylinder through the connecting piece, the connecting piece penetrates through the telescopic shaft of the one-way oil cylinder and then is fixed with the two rotating pieces respectively, and the rotating arm drives the rotating pieces to enable the connecting piece to stretch the telescopic shaft outwards.

After adopting above-mentioned structure, realize rotating the drive of piece to one-way hydro-cylinder through the connecting piece, simple structure, and simple to operate.

The utility model discloses further set up to: two sides of a telescopic shaft of the one-way oil cylinder are provided with a first meshing tooth, two rotating parts are respectively provided with a second meshing tooth meshed with the first meshing tooth, and the rotating arm drives the rotating parts to enable the telescopic shaft to stretch outwards.

After adopting above-mentioned structure, realize the drive of rocking arm to one-way hydro-cylinder through the gear engagement of rotating the piece with the telescopic shaft, it is more stable like this to move between rotation piece and the telescopic shaft in operation process, and is more smooth and easy during the operation.

The utility model discloses further set up to: the rocking arm one end is articulated with the pin joint that rotates the piece, is provided with the fixed equipment that corresponds with first installation position and second installation position on the rocking arm, and the rocking arm passes through fixed subassembly and first installation position or second installation position fixed connection.

The utility model discloses further set up to: first installation position and second installation position are the through-hole structure, fixed subassembly including the fixed pin that passes first installation position or second installation position, the one end of fixed pin is provided with fixed pull ring, the other end of fixed pin is provided with the elastic fixation pearl, the fixed pin passes first installation position or second installation position back elastic fixation pearl and stretches out the fixed pin lateral wall, the elastic fixation pearl carries out axial fixity to rotating the piece and rocking arm with fixed pull ring.

After adopting above-mentioned structure, realize through the fixed pin that simple structure, and easy to assemble to the rocking arm with rotate the installation between the piece fixed.

Drawings

FIG. 1 is a schematic view of the inward folding structure of the present invention;

fig. 2 is a schematic structural view when the utility model is pulled outwards;

FIG. 3 is a schematic structural diagram of an embodiment of the present invention;

fig. 4 is a schematic structural view of a second embodiment of the present invention;

fig. 5 is an exploded view of a first embodiment of the present invention;

fig. 6 is an exploded view of the second embodiment of the present invention;

FIG. 7 is an enlarged view of portion A of FIG. 3;

fig. 8 is an enlarged view of a portion B in fig. 4.

The reference numbers in the figures mean:

1-a scaffold; 2, a one-way oil cylinder; 21-meshing teeth one; 3-a rotating member; 31-a first mounting location;

32-a second mounting location; 33-a second meshing tooth; 34-a groove; 4-a rotating arm; 5-a handle bar; 6-connecting piece;

7-a fixed pin; 8-fixing a pull ring; 9-a connecting shaft; 10-screw.

Detailed Description

The invention will be further described in the following with reference to the accompanying drawings in which:

referring to fig. 1 to 8, an adjustable chest expander comprises a bracket 1, a one-way cylinder 2, two rotating members 3 and two rotating arms 4, wherein the bracket 1 is arranged on the bracket 1, the bracket 1 is composed of two cover plates, the two cover plates are fixedly connected with the one-way cylinder 2, the rotating members 3 are also rotatably connected with the cover plates through a connecting shaft 9, the one-way cylinder 2 is a one-way cylinder 2 which is common in the market, and the rotating members 3 can be fan-shaped rotating members or circular rotating members, preferably circular rotating members in the embodiment; the two rotating arms 4 enable the two rotating pieces 3 to drive the one-way oil cylinder 2 to move in a one-way mode, a plurality of first installation positions 31 and second installation positions 32 are arranged on the rotating pieces 3, and the rotating arms 4 can be fixed on the first installation positions 31 or the second installation positions 32; when the rotating arm 4 is positioned at the first mounting position 31, the rotating arm 4 can be folded inwards; when the rotating arm 4 is located at the second mounting position 32, the rotating arm 4 can be pulled outwards, and by the structure that the rotating arm 4 is mounted at two different mounting positions, namely the first mounting position 31 and the second mounting position 32, the arm of a user can fold the rotating arm 4 inwards when the rotating arm 4 is located at the first mounting position 31; when the swivel arm 4 is in the second mounting position 32, the user's arm can pull the swivel arm 4 outwards; when a user wants to use a certain installation position for exercise, the rotating arm 4 can be installed on the certain installation position, so that the functions of two exercise modes of one chest expander are realized, the exercise modes are enriched, and the exercise effect is improved; in order to facilitate the rotation arm 4 to be pulled outwards and to facilitate a user to better hold the rotation arm 4, a holding rod 5 is arranged at the outer end of the rotation arm 4, the outer end of the rotation arm 4 is bent to form a holding cavity, and the holding rod 5 is transversely arranged in the holding cavity.

Further setting the following steps: the angle formed by the rotating arm 4 mounted at the second mounting position 32 is larger than the angle formed by the rotating arm 4 mounted at the first mounting position 31; when the rotating arm 4 is positioned at the second mounting position 32, the opening formed between the two rotating arms 4 is opposite to the one-way oil cylinder 2, when the rotating arm 4 is positioned at the first mounting position 31, the one-way oil cylinder 2 is positioned in the opening formed between the two rotating arms 4, and the inward folding and the outward pulling during the exercise are relative to the opening; because the unidirectional oil cylinder 2 is adopted, two exercising actions of pressing and pulling are realized through different angles formed by the two rotating arms 4, only the connecting position of the rotating arm 4 and the rotating part 3 needs to be adjusted, and the operation is convenient

The following steps can be also included: the angle formed by the two rotating arms 4 arranged on the first mounting position 31 is an inferior angle, the angle formed by the two rotating arms 4 arranged on the second mounting position 32 is a superior angle, and the inferior angle and the superior angle are both angles relative to the opening facing the one-way oil cylinder 2. due to the one-way oil cylinder 2, two exercise actions of pressing and pulling are realized through different angles formed by the two rotating arms 4, only the connecting position of the rotating arm 4 and the rotating part 3 needs to be adjusted, and the operation is convenient; meanwhile, a third installation position can be arranged on the rotating part, and the two rotating arms are arranged at 180 degrees after being installed at the third installation position, so that the structure is a straight-bar chest expander on the market, and the inward folding exercise action can be realized at the maximum angle.

In this embodiment: at least two mounting positions are arranged on each of the first mounting position 31 and the second mounting position 32, the number of the mounting positions is increased, so that a user can select exercise modes in different angle states according to the exercise requirement of the user, and when the first mounting position 31 is used, the smaller the angle between the rotating arms 4 is, the smaller the force required for folding the rotating arms 4 inwards is; in the second mounting position 32, a larger angle between the swivel arms 4 requires a larger force to pull the swivel arms 4 outwards.

Further setting the following steps: the first installation position 31 and the second installation position 32 are symmetrically arranged relative to the hinge point of the rotating part 3; and the pin joint of rotating piece 3 is the central point, through rotating 3 the articulated rocking arm 4 of central point, it is articulated with support 1 to rotate piece 3 through connecting axle 9, and connecting axle 9 can be the bolt, and connecting axle 9 is as the central point, sets up first installation position 31 and second installation position 32 relative central point symmetry again, has made things convenient for the conversion installation of rocking arm 4 between two installation positions fixed like this, need not rotate rocking arm 4 and rotate 3 and take apart the repacking completely, and the operation is simpler.

The first embodiment is as follows: the two rotating pieces 3 are connected with the telescopic shaft of the one-way oil cylinder 2 through the connecting piece 6, the connecting piece 6 in the embodiment is preferably a soft steel wire rope, the steel wire rope penetrates through a through hole in the telescopic shaft of the one-way oil cylinder 2 and then is fixed with the two rotating pieces 3 through the fixing screw 10, a limiting groove 34 for limiting the steel wire rope is formed in each rotating piece 3, the steel wire rope moves in the limiting groove 34, the rotating piece 3 is driven by the rotating arm 4 to enable the steel wire rope to stretch the telescopic shaft outwards, and the rotating pieces 3 are driven to the one-way oil cylinder 2 through the steel.

Example two: both sides on the telescopic shaft of the one-way oil cylinder 2 are provided with a first meshing gear 21, two rotating parts 3 are provided with a second meshing gear 33 meshed with the first meshing gear 21, the rotating arm 4 drives the rotating part 3 to enable the telescopic shaft to stretch outwards, the rotating arm 4 is driven to the one-way oil cylinder 2 through the gear meshing of the rotating part 3 and the telescopic shaft, the movement of the tensioner between the rotating part 3 and the telescopic shaft in the operation process is more stable through the meshing between gears, and the operation is smoother.

In order to further facilitate the adjustment and fixation between the rotating arm 4 and the rotating member 3, one end of the rotating arm 4 is hinged to a hinge point of the rotating member 3, the rotating arm 4 is provided with a fixed assembly corresponding to the first mounting position 31 and the second mounting position 32, and the rotating arm 4 is fixedly connected with the first mounting position 31 or the second mounting position 32 through a fixed assembly.

Further setting the following steps: the first installation position 31 and the second installation position 32 are through hole structures, the fixing component comprises a fixing pin 7 penetrating through the first installation position 31 or the second installation position 32, one end of the fixing pin 7 is provided with a fixing pull ring 8, the other end of the fixing pin 7 is provided with an elastic fixing bead which is of a common telescopic marble structure in the market, when the fixing bead is pressed, the fixing bead enters the fixing pin 7, after passing through the first installation position 31 and the second installation position 32, the fixing bead is clamped after being popped up to realize the axial fixation of the fixing pin 7, after the fixing pin 7 passes through the first installation position 31 or the second installation position 32, the elastic fixing bead extends out of the side wall of the fixing pin 7, the elastic fixing bead and the fixing pull ring 8 axially fix the rotating part 3 and the rotating arm 4, the mounting and fixing between the rotating arm 4 and the rotating part 3 are realized through the fixing pin 7, the structure is simple, and the mounting is convenient; and also can directly set up the elasticity fixed ball as the bolt, be provided with the through-hole on fixed pin 7, the bolt inserts and realizes axial fixity after the installation.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an adjustable chest expander, includes that support (1) sets up one-way hydro-cylinder (2) on support (1), two rotate piece (3) and two rocking arms (4), and two rocking arms (4) make two rotate piece (3) drive one-way hydro-cylinder (2) unidirectional motion, its characterized in that: the rotating part (3) is provided with a plurality of first mounting positions (31) and second mounting positions (32), and the rotating arm (4) can be fixed on the first mounting positions (31) or the second mounting positions (32); when the rotating arm (4) is positioned at the first mounting position (31), the rotating arm (4) can be folded inwards; when the rotating arm (4) is located at the second mounting position (32), the rotating arm (4) can be pulled outwards.

2. An adjustable chest expander as claimed in claim 1, wherein: the angle formed by the rotating arm (4) arranged at the second mounting position (32) is larger than the angle formed by the rotating arm (4) arranged at the first mounting position (31).

3. An adjustable chest expander as claimed in claim 1, wherein: the angle formed by the two rotating arms (4) arranged on the first mounting position (31) is an inferior angle, and the angle formed by the two rotating arms (4) arranged on the second mounting position (32) is a superior angle.

4. An adjustable chest expander as claimed in claim 1, 2 or 3, wherein: the installation positions of the first installation position (31) and the second installation position (32) are at least two.

5. An adjustable chest expander as claimed in claim 1, 2 or 3, wherein: the first mounting position (31) and the second mounting position (32) are symmetrically arranged relative to the hinge point of the rotating part (3).

6. An adjustable chest expander as claimed in claim 5, wherein: the hinge point of the rotating part (3) is a central point.

7. An adjustable chest expander as claimed in claim 1 or 2 or 3 or 6 wherein: the two rotating pieces (3) are connected with the telescopic shaft of the one-way oil cylinder (2) through the connecting piece (6), the connecting piece (6) penetrates through the telescopic shaft of the one-way oil cylinder (2) and then is fixed with the two rotating pieces (3), and the rotating arm (4) drives the rotating pieces (3) to enable the connecting piece (6) to stretch the telescopic shaft outwards.

8. An adjustable chest expander as claimed in claim 1 or 2 or 3 or 6 wherein: two sides of the telescopic shaft of the one-way oil cylinder (2) are provided with a first meshing tooth (21), two rotating pieces (3) are respectively provided with a second meshing tooth (33) meshed with the first meshing tooth (21), and the rotating arm (4) drives the rotating pieces (3) to stretch the telescopic shaft outwards.

9. An adjustable chest expander as claimed in claim 1 or 2 or 3 or 6 wherein: rocking arm (4) one end is articulated with the pin joint that rotates piece (3), is provided with the fixed equipment that corresponds with first installation position (31) and second installation position (32) on rocking arm (4), and rocking arm (4) are through fixed subassembly and first installation position (31) or second installation position (32) fixed connection.

10. An adjustable chest expander as claimed in claim 9, wherein: first installation position (31) and second installation position (32) are the through-hole structure, fixed subassembly including fixed pin (7) of passing first installation position (31) or second installation position (32), the one end of fixed pin (7) is provided with fixed pull ring (8), the other end of fixed pin (7) is provided with the fixed pearl of elasticity, fixed pin (7) pass first installation position (31) or second installation position (32) back elastic fixation pearl stretch out fixed pin (7) lateral wall, the fixed pearl of elasticity and fixed pull ring (8) carry out axial fixity to rotating piece (3) and rocking arm (4).