CN215781212U

CN215781212U - Chest expander

Info

Publication number: CN215781212U
Application number: CN202121488846.6U
Authority: CN
Inventors: 王东明; 王宁扬; 王帅
Original assignee: Beijing Kingsmith Technology Co Ltd
Current assignee: Beijing Kingsmith Technology Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-02-11
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a chest expander which comprises a rotary disc and an adsorption block, wherein a hollow cavity is arranged on the adsorption block, a magnetic assembly is detachably arranged in the hollow cavity, the rotary disc and the adsorption block are mutually adsorbed to generate a magnetic field, and therefore the magnetic assembly is replaced to change the size of the magnetic field generated between the rotary disc and the adsorption block. The utility model provides a chest expander, wherein a resistance device is arranged on the chest expander, a replaceable magnetic component is arranged on the resistance device, and the maximum magnetic values of the magnetic components are different, so that the maximum resistance values provided are different, and the magnetic components are replaced according to different physical qualities of users, so that the use requirements of different users are met; insert in the adsorption block through the mounting panel, the magnet that will change is installed on the mounting panel to simplify the change step, simple structure improves user experience.

Description

Chest expander

Technical Field

The utility model belongs to the technical field of fitness equipment, and particularly relates to a chest expander.

Background

With the continuous improvement of living standard, people pay more and more attention to physical exercise, so more and more fitness equipment appears in our lives. Especially, home fitness equipment is gradually favored by people, and people can be trained to a certain extent in environments with small space such as home or office based on miniaturization of products and simplification of operation.

The chest developer is an appliance suitable for mass body building and exercising. The user sets different use modes according to the training requirements of the user, and mainly trains muscles of different parts on the body. Particularly, the chest developer can be used for chest training, arm training and the like, and good body shape is shaped, so that the effect of body building in a gymnasium is achieved.

Among the prior art, generally be provided with resistance device in the chest expander, the user pulls the stay cord, and resistance device provides certain resistance for the stay cord for the in-process of user pulling stay cord is in order to reach the purpose of taking exercise. However, the strength training required varies from user to user. Some users with better physical fitness still cannot meet the exercise requirement of the existing resistance device at the maximum value. The resistance that resistance device provided in current chest expander can not carry out the resistance according to the size of user's strength and adjust, can't satisfy different user's demand.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the maximum resistance value of the chest developer cannot be adjusted according to the strength of a user in the background art, the utility model provides the chest developer for solving the problem that the maximum resistance value cannot be adjusted.

In order to achieve the purpose, the chest expander has the following specific technical scheme:

the utility model provides a chest expander, includes carousel and adsorption block, is provided with well plenum chamber on the adsorption block, and the magnetic component is installed to well plenum chamber indoor detachable, and the carousel adsorbs each other with the adsorption block and produces magnetic field to change the size that magnetic component changed and produce magnetic field between carousel and the adsorption block.

Furthermore, one end of the hollow cavity is provided with an opening, and the magnetic assembly is inserted from the opening and is installed in the hollow cavity.

Further, magnetic component includes the mounting panel, and the detachable is connected with magnet on the mounting panel.

Further, the mounting plate is provided with a mounting groove, and the mounting groove is clamped with the magnet.

Furthermore, an accommodating groove is formed in the adsorption block, the accommodating groove divides the hollow cavity into two parts to form a first cavity and a second cavity, and magnetic assemblies are arranged in the first cavity and the second cavity respectively.

Further, the groove body of the accommodating groove is provided with a mounting hole, and the mounting hole and the mounting groove are correspondingly arranged.

Further, mounting holes are correspondingly formed in the upper side and the lower side of the groove body of the accommodating groove, the bottom surface of the first cavity is provided with the mounting holes, and the top surface of the second cavity is provided with the mounting holes; when the mounting plate is inserted into the first chamber, the mounting plate on the side where the magnet is provided is inserted toward the bottom surface of the first chamber, and when the mounting plate is inserted into the second chamber, the mounting plate on the side where the magnet is provided is inserted toward the top surface of the second chamber.

Further, the rotating piece is arranged in the accommodating groove, and the side wall of the accommodating groove and two end faces of the rotating piece are mutually adsorbed.

Further, the shapes of the adsorption block and the mounting plate are both fan-shaped.

Further, the rotating piece is arranged on the wire wheel, the pull rope is wound on the wire wheel, and the pull rope drives the rotating piece to rotate.

The chest expander provided by the utility model has the following advantages:

the utility model provides a chest expander, wherein a resistance device is arranged on the chest expander, a replaceable magnetic assembly is arranged on the resistance device, and the maximum magnetic force values of the magnetic assemblies are different, so that the maximum resistance values provided are different, the magnetic assemblies are replaced according to different physical qualities of users, and the use requirements of different users are met.

Through inserting the mounting panel in the adsorption block, the magnet that will change is installed in the mounting panel to simplify the change step, simple structure improves user experience.

Drawings

Fig. 1 is a schematic structural view of the whole chest expander of the present invention;

fig. 2 is a side view of the chest expander of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is a partial structure diagram of the chest expander of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

fig. 6 is a schematic structural view of a bottom case of the chest expander of the present invention;

fig. 7 is a schematic structural view of a cover body in the chest expander of the present invention;

fig. 8 is a schematic structural view of an adjustment structure in the chest expander of the present invention;

fig. 9 is a partial schematic view of the resistance device in the chest expander of the present invention;

fig. 10 is a schematic view showing the structure of the mounting plate and the magnet assembly in the chest expander according to the present invention;

fig. 11 is a sectional view taken along the direction C-C in fig. 10.

The notation in the figure is:

1. a platform main body; 11. a bottom case; 111. a first limit groove; 12. a cover body; 121. a wire outlet hole; 122. a second limit groove; 123. mounting a column; 124. fixing grooves; 2. a wire wheel; 21. a one-way bearing; 3. pulling a rope; 31. a handle; 4. a rotating member; 5. a resistance device; 51. an adsorption block; 511. a guide block; 512. mounting holes; 52. a reinforcing plate; 53. a sleeve; 54. an adjustment structure; 541. a screw; 542. connecting columns; 543. adjusting a knob; 55. mounting a plate; 551. mounting grooves; 56. and a magnet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the utility model. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The utility model provides a chest expander which comprises a platform main body 1, wherein a drawable pull rope 3 is arranged on the platform main body 1, and a user stands on the platform main body 1 and can achieve the effect of training strength by drawing the pull rope 3. The use environment of the platform main body 1 is not limited at all, and the chest developer can be placed anywhere with a flat surface.

As shown in fig. 1, the platform main body 1 includes a bottom shell 11, the bottom shell 11 has an opening, and a cover 12 is fastened to the opening of the bottom shell 11. Be provided with line wheel 2 on the drain pan 11, be provided with resistance means 5 on the line wheel 2, on stay cord 3 twined to line wheel 2, through pull stay cord 3, resistance means 5 produced the resistance to line wheel 2 to the user stimulates stay cord 3 to receive the resistance effect, in order to reach the purpose of training.

During specific use, place the chest expander in service environment, user's both feet trample to platform main part 1 on, require adjustment resistance device 5 according to user's training to adjust the resistance size and satisfy different user's user demand.

As shown in fig. 2 to 5, the reel 2 is provided with the rotating member 4, the platform cylinder 1 is provided with the magnetic adsorption block 51, the magnetic adsorption block 51 can adjust the contact area with the rotating member 4, and the contact area between the rotating member 4 and the magnetic adsorption block 51 is changed, so that the purpose of adjusting the resistance of the pull rope 3 is achieved.

Further, the rotatable setting of rotating 4 is on line wheel 2, and rotating 4 generally sets up to the carousel, changes the resistance size through the area of contact size of adsorbing piece 51 and carousel, and then provides the resistance source for stay cord 3.

Specifically, be provided with the mount pad on the drain pan 11, drain pan 11 rotates and is connected with line wheel 2, is provided with one-way bearing 21 in the line wheel 2, and line wheel 2 rotates with rotating 4 and connects, sets up the torsional spring in the mount pad to pulling stay cord 3, stay cord 3 rotates on line wheel 2, and the automatic of stay cord 3 is retrieved to the torsional spring. When the in-process of pulling stay cord 3, line wheel 2 drives the carousel and rotates, has magnetic absorption piece 51 and produces the magnetic field on rotating 4, has magnetic absorption piece 51 and provides the resistance for the carousel, because the carousel receives the resistance effect, the user can experience certain resistance in-process of pull stay cord 3 to the effect of the realization exercise health.

As shown in fig. 6, the absorption block 51 is provided with an adjusting structure 54, and the adjusting structure 54 is used for adjusting the distance between the absorption block 51 and the turntable so as to adjust the magnitude of the resistance. The carousel is discoid structure, adsorbs to be provided with the storage tank on the piece 51, and the carousel can remove in the storage tank, through the distance of adjusting the carousel in the storage tank to the control adsorbs the resistance size that piece 51 produced to the carousel.

As shown in fig. 9, the turntable and the magnetic adsorption block 51 move relatively, so that the overlapping area of the side wall of the tank body on the storage tank and the magnetic adsorption block 51 changes. The magnetic force generated by the magnetic adsorption block 51 and the turntable is changed by changing the overlapping area of the magnetic adsorption block 51 and the turntable.

Specifically, the turntable is made of magnetic metal, such as iron, steel, etc., and the magnet 56 is disposed on the adsorption block 51, so that the magnet 56 on the adsorption block 51 and the magnetic material interact with each other to generate a magnetic field, and the magnetic adsorption block 51 provides resistance to the turntable. The contact area between the rotary table and the magnetic adsorption block 51 is changed, and the magnetic force generated by the interaction between the rotary table and the magnetic adsorption block is further changed, so that the purpose of adjusting the resistance of the pull rope 3 is achieved.

Further, the shape of the adsorption block 51 is set to be a sector shape, and in order to adapt to the shape of the turntable, the sector-shaped adsorption block 51 and the turntable can maximize the contact area between the turntable and the adsorption block 51 during the relative movement, so that the two interact with each other, and at a certain same position, the sector-shaped and circular contact area is maximized, and the generated magnetic force is maximized.

Of course, the shape of the adsorption block 51 may also be square, oval, diamond, etc., and the shape of the turntable may be adapted to the shape of the adsorption block 51, which is not specifically limited herein, and different shapes may be set according to different requirements.

Further, the present invention provides that the maximum resistance output of the resistance device 5 in some embodiments can be adjusted according to the requirements of the application. The physical quality is different according to individual differences of different users. The magnetic force of the absorption block 51 can be adjusted to meet the exercise requirements of different users. Replaceable magnetic assemblies are provided to output different values of resistance depending on the training intensity of the user.

Further, the adsorption block 51 has a hollow cavity, the hollow cavity is divided into two parts by the storage groove, a first cavity and a second cavity are formed, the first cavity and the second cavity are symmetrically arranged, one end of the first cavity and one end of the second cavity are provided with openings, the magnetic assemblies are respectively arranged in the first cavity and the second cavity, a magnetic field is formed between the first cavity and the second cavity, and the rotary disc moves in the storage groove between the first cavity and the second cavity, so that different resistance output values are changed through the size of the magnetic force.

As shown in fig. 10 and 11, the magnetic assembly includes a mounting plate 55, the shape of the mounting plate 55 is matched with the shape of the adsorption block 51, and the adsorption block 51 in the above embodiment is shaped like a fan, preferably, the mounting plate 55 is shaped like a fan, so that the mounting plate 55 is inserted into the adsorption block 51 to match the shape of the first and second chambers formed by the adsorption block 51.

Of course, the shape of the mounting plate 55 is not limited to a fan shape, and may be set to be square, oval, diamond, etc., and the shape of the mounting plate 55 is only required to be matched with the shapes of the first chamber and the second chamber, which is not specifically limited herein, and different shapes may be set according to different requirements.

Further, a mounting groove 551 is provided on the mounting plate 55, and a magnet 56 is provided in the mounting groove 551, so that the mounting plate 55 fitted with the magnet 56 has magnetism, so that the adsorption block 51 has magnetism, and when the turntable of magnetic material moves in the accommodating groove, so that the magnitude of the resistance is changed.

Specifically, the number of the mounting grooves 551 may be one, two or more, and is not limited specifically herein, the number of the magnets 56 may be one, two or more, the number of the magnets 56 may be the same as or different from the number of the mounting grooves 551, and the magnets may be replaced arbitrarily according to the user's needs.

Wherein, not only the quantity of magnet 56 can increase and decrease according to user's demand, the magnetism of single magnet 56 can also be changed according to user's demand to satisfy different user's training demand.

Specifically, the mounting groove 551 is circular, the magnet 56 is circular, and when the magnet 56 is mounted in the mounting groove 551, the magnet 56 protrudes out of the mounting groove 551, so that the magnet 56 can be replaced by a user.

Further, the form of fitting the magnet 56 and the mounting groove 551 is not particularly limited herein as long as the magnet 56 can be mounted in the mounting groove 551.

After the user selects the number of the magnets 56 and the magnetic force value of the single magnets 56 according to the requirement of the training, one end of the mounting plate 55 is inserted into the opening of the first chamber or the second chamber, the mounting plate 55 is pushed until the mounting plate 55 is completely inserted into the first chamber or the second chamber, and at this time, the assembly of the magnetic assembly and the adsorption block 51 is completed.

In order to further maximize the magnetic force that magnetic component and carousel produced, the effect of reinforcing magnetic attraction, mounting hole 512 has been seted up on the cell body lateral wall of storage tank, the position that sets up of mounting hole 512 and mounting panel 55 go up mounting groove 551 sets up the position corresponding, thereby insert mounting panel 55 in first cavity or the second cavity, the magnet 56 and the mounting hole 512 of protruding mounting panel 55 terminal surface cooperate, thereby make magnet 56 set up on the cell body lateral wall of storage tank, thereby realize the effect of mutual magnetic attraction between carousel and the adsorption block 51.

Specifically, the upper side and the lower side of the groove body of the accommodating groove are correspondingly provided with mounting holes 512, the bottom surface of the first cavity is provided with the mounting holes 512, the top surface of the second cavity is provided with the mounting holes 512, when the mounting plate 55 is inserted into the first cavity, the mounting plate 55 on one side of the magnet 56 is inserted downwards, and the magnet 56 is matched with the mounting holes 512 arranged on the bottom surface of the first cavity. Similarly, when the mounting plate 55 is inserted into the second chamber, the mounting plate 55 on the side where the magnet 56 is disposed is inserted upward so that the magnet 56 is fitted into the mounting hole 512 provided on the top surface of the second chamber. Magnet 56 is set up simultaneously to the cell body both sides wall of the storage tank of the absorption piece 51 that so sets up, and when carousel and storage tank relative movement, both sides all contacted with magnet 56 about the carousel for magnetic component is the biggest to the magnetic force that the carousel produced, and then the adsorption effect is best.

Further, the relative movement of the turntable and the magnetic adsorption block 51 can change the contact area between the turntable and the magnetic adsorption block, thereby realizing the adjustment of the resistance. The turntable and the adsorption block 51 can be fixedly arranged by moving, and the adsorption block 51 moves relative to the turntable; or fixing the magnetic adsorption block 51, and relatively moving the turntable and the adsorption block 51; it is also possible to provide both the turntable and the suction block 51 movable, and to produce a relative positional change. The turntable provided by the embodiment is rotatably arranged on the bottom shell 11, the radial direction of the turntable does not move, and the change of the output resistance value is realized by adjusting the distance between the adsorption block 51 and the turntable.

Specifically, in some embodiments of the present invention, the turntable is rotatably disposed on the bottom case 11, the turntable is not movable, and a user can adjust the distance between the turntable and the adsorption block 51 by adjusting the movement of the adsorption block 51, so as to adjust the resistance output value therebetween.

Further, an adjusting structure 54 is disposed on the suction block 51, and the suction block 51 is moved on the bottom case 11 by driving the adjusting structure 54.

Specifically, the adjusting structure 54 includes a sleeve 53, the sleeve 53 is rotatably connected with a screw 541, the sleeve 53 and the screw 541 are in threaded fit, the screw 541 is rotated, and the sleeve 53 is driven to move, so that the screw 541 and the sleeve 53 move relatively.

Further, adsorb one side and the sleeve 53 fixed connection of piece 51, screw 541 drive sleeve 53 removes to drive and adsorb piece 51 and remove, stop rotating as sleeve 53, the distance between carousel and the absorption piece 51 is fixed, thereby the resistance that carousel and absorption piece 51 produced is fixed, and then the carousel rotates, and the pulling stay cord 3 produces fixed resistance value.

As shown in fig. 8, a connection column 542 is disposed at one end of the screw 541, the connection column 542 is connected to the adjustment knob 543, the adjustment knob 543 is rotated to drive the screw 541 to rotate, so as to move the sleeve 53, and further to adjust the adsorption block 51 to move on the bottom case 11.

Specifically, adjustment structure 54 is installed on drain pan 11, has seted up the through-hole on the lateral wall of drain pan 11, and spliced pole 542 runs through the through-hole setting, and one side of spliced pole 542 sets up adjust knob 543, and adjust knob 543 sets up on the outer wall of drain pan 11 to the user rotates adjust knob 543, and the relative rotation of drive screw 541 and sleeve 53 realizes adsorbing the removal between piece 51 and the carousel.

Further, a reinforcing plate 52 is disposed on a side wall of the sleeve 53, and a lightening hole is disposed on the reinforcing plate 52, so as to increase the strength of the sleeve 53 and prevent the sleeve 53 from being broken during the rotation of the screw 541.

As shown in fig. 6 and 7, the bottom case 11 and the cover 12 are respectively provided with a limiting groove, specifically, the bottom case 11 is provided with a first limiting groove 111, the cover 12 is provided with a second limiting groove 122, the first limiting groove 111 and the second limiting groove 122 are used for limiting the radial movement of the magnetic adsorption block 51, in a specific using process, the upper end surface and the lower end surface of the magnetic adsorption block 51 are respectively provided with a guide block 511, and the guide block 511 is slidably connected with the limiting groove, so that the guide block 511 moves in the first limiting groove 111 and the second limiting groove 122.

Specifically, the first limiting groove 111 and the second limiting groove 122 are disposed on the fixing block, the fixing blocks are disposed on the bottom case 11 and the cover 12, and the limiting grooves are disposed on the fixing blocks along the radial direction. The number of the limiting grooves is matched with that of the guide blocks 511, specifically, the number of the guide blocks 511 can be set to be one, two or more, the guide blocks 511 are long blocks, and the guide blocks 511 are arranged at equal intervals, so that the movement of the magnetic adsorption blocks 51 is better limited.

Further, the rotating shaft on the rotating disc protrudes out of the rotating disc, and when the cover 12 is fastened to the bottom case 11, the fixing groove 124 is formed in the cover 12, and the rotating shaft is arranged on the fixing groove 124 to better fix the cover 12 and the bottom case 11.

Further, a plurality of mounting posts 123 are arranged on the cover 12, a plurality of mounting holes 512 are arranged at positions corresponding to the mounting posts 123 on the bottom case 11, and the bottom case 11 and the cover 12 are fixedly connected through screws, so that the whole assembly of the chest expander is realized.

The pull rope 3 provided by the utility model is provided with the handle 31, so that a user can pull the pull rope 3 through the handle 31 in the using process, and more conveniently pull the pull rope 3 to exercise.

The utility model provides a chest expander, wherein a resistance device is arranged on the chest expander, a replaceable magnetic component is arranged on the resistance device, the maximum magnetic force values of the magnetic components are different, so that the maximum resistance values are different, the magnetic components are replaced according to different physical qualities of users, and the use requirements of different users are met. Insert in the adsorption block through setting up the mounting panel, the magnet that will change is installed in the mounting panel to simplify the change step, simple structure improves user experience.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a chest expander, its characterized in that includes carousel and adsorption block, adsorbs to be provided with well plenum chamber on the block, and the magnetic component is installed to well plenum chamber indoor detachable, and the carousel adsorbs each other with adsorption block and produces magnetic field to change the size that magnetic component changed and produce magnetic field between carousel and the adsorption block.

2. The chest expander according to claim 1, wherein one end of the hollow chamber is provided with an opening, and the magnetic assembly is inserted through the opening and mounted into the hollow chamber.

3. A chest expander as claimed in claim 1 wherein the magnetic assembly comprises a mounting plate to which the magnet is removably attached.

4. A chest expander as claimed in claim 3 wherein the mounting plate is provided with a mounting slot which is engaged by the magnet.

5. A chest expander according to claim 4, wherein the suction block is provided with a receiving groove which divides the hollow chamber into two parts forming a first chamber and a second chamber, the first chamber and the second chamber being provided with the magnetic assembly therein, respectively.

6. A chest expander as claimed in claim 5, wherein the body of the receiving groove is provided with a mounting hole, and the mounting hole and the mounting groove are correspondingly arranged.

7. A chest expander as claimed in claim 5, wherein the upper and lower sides of the body of the containing groove are correspondingly provided with mounting holes, the bottom surface of the first chamber is provided with mounting holes, and the top surface of the second chamber is provided with mounting holes; when the mounting plate is inserted into the first chamber, the mounting plate on the side where the magnet is provided is inserted toward the bottom surface of the first chamber, and when the mounting plate is inserted into the second chamber, the mounting plate on the side where the magnet is provided is inserted toward the top surface of the second chamber.

8. A chest expander according to claim 5 wherein the rotatable member is disposed in the receiving chamber, the side walls of the receiving chamber and the end faces of the rotatable member being attracted to each other.

9. A chest expander according to claim 3 wherein the suction blocks and the mounting plate are each shaped as sectors.

10. A chest expander as claimed in claim 1 wherein the rotatable member is provided on a pulley around which is provided a pull cord which rotates the rotatable member.