CN220360671U

CN220360671U - Chest expander

Info

Publication number: CN220360671U
Application number: CN202320848141.3U
Authority: CN
Inventors: 黄晓宇; 王伟琳; 叶超; 李天成
Original assignee: Zhangzhou Solex Smart Home Co Ltd
Current assignee: Zhangzhou Solex Smart Home Co Ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2024-01-19
Anticipated expiration: 2033-04-17

Abstract

The utility model provides a chest expander, comprising: the device comprises a shell, a handle, a motor, a reel and a pull rope; the reel is arranged in the shell; one end of the pull rope is connected with the handle, and the other end of the pull rope passes through the opening of the shell and then is wound on the reel through a reversing mechanism arranged on the peripheral side of the reel; the output rotating shaft of the motor is connected with the reel through a speed reducing mechanism. According to the chest expander, the speed reducing mechanism and the reversing mechanism are simultaneously arranged under the condition of not increasing the volume by optimizing the space layout in the chest expander.

Description

Chest expander

Technical Field

The utility model relates to fitness equipment, in particular to a chest expander.

Background

Conventional exercise equipment is generally relatively large in size and relatively high in cost, and the items that one exercise equipment can exercise are relatively limited, for example, exercise effects that can be achieved by exercise products such as rowing machines, dumbbell, high-strength equipment and the like are different. However, if the ordinary user wants to do body-building exercise at home, it is not realistic to purchase the rowing machine or the high-strength apparatus, and the ordinary user is easy to be idle because of poor storage. Therefore, if the exercise equipment is connected with other exercise components, the exercise equipment can be installed at different positions, so that different exercise effects are realized, the occupied space of the exercise equipment is effectively saved, and the exercise equipment is convenient for a user to use and store. The chest expander in the prior art can be used as one of the devices, but because the chest expander needs to adjust the resistance value, a motor needs to be arranged in the chest expander, the motor provides the resistance opposite to the resistance applied by a user, and the user needs to overcome the resistance when pulling the pull rope, so that the exercise effect can be achieved. However, in order to install the motor, the chest expander is easy to increase in height and size, and certain inconvenience is caused to users in use and storage.

Disclosure of Invention

The utility model aims to solve the main technical problem of providing a chest expander, which optimizes the space layout in the chest expander and simultaneously places a speed reducing mechanism and a reversing mechanism under the condition of not increasing the volume.

In order to solve the above technical problems, the present utility model provides a chest expander, including: the device comprises a shell, a handle, a motor, a reel and a pull rope;

the reel is arranged in the shell; one end of the pull rope is connected with the handle, and the other end of the pull rope passes through the opening of the shell and then is wound on the reel through a reversing mechanism arranged on the peripheral side of the reel;

and an output rotating shaft of the motor is connected with the reel in a linkage way.

In a preferred embodiment: the opening is provided at the top of the housing.

In a preferred embodiment: and a rope outlet bearing device is arranged between the reel and the reversing mechanism and is arranged on the periphery of the reel, so that the pull rope is separated from the reel after passing through the rope outlet bearing device.

In a preferred embodiment: the reversing mechanism is a rope rotating bearing device; the pull rope passes through the rope rotating bearing device and then faces the opening.

In a preferred embodiment: the output rotating shaft of the motor is connected with the reel through a speed reducing mechanism.

In a preferred embodiment: the speed reducing mechanism comprises a first gear and a second gear, the first gear is meshed with an output rotating shaft of the motor, and the second gear is coaxially arranged with the rotating shaft of the reel and meshed with the first gear; the diameter of the second gear is larger than that of the first gear.

In a preferred embodiment: the bottom of the shell is provided with a connecting hole connected with the body-building assembly, and the body-building assembly is provided with a connecting piece matched with the connecting hole.

In a preferred embodiment: the connecting piece is provided with a connecting column and two limiting lugs which extend outwards along the radial direction of the connecting column;

when the limiting lug parts are aligned with the connecting holes, the body-building assembly is in limiting fit with the connecting piece; when spacing ear staggers with the connecting hole, spacing ear body-building subassembly's bottom spacing cooperation.

In a preferred embodiment: the exercise assembly is an ankle strap or door anchor or foot pedal.

In a preferred embodiment: the bottom of the shell is also provided with a bulge, the bulge is rotationally connected with one end of the door-shaped connecting piece through a bolt, and the other end of the door-shaped connecting piece can be connected with a binding belt.

Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

the utility model provides a chest expander, wherein a motor drives a winding wheel to rotate through a speed reducing mechanism, so that the winding wheel can be driven to rotate towards a wire winding direction to provide resistance when a user pulls a pull rope, and the rotation speed of the winding wheel is relatively slow after the speed reducing mechanism reduces, so that a relatively proper resistance can be provided to enable the user to obtain a good exercise effect. Because the motor is required to drive the reel to rotate, the motor and the reel are required to be arranged up and down or left and right; if the left-right arrangement is adopted, the reel and the motor are required to be vertically arranged, and the vertical space occupied by the speed reducing mechanism is added, so that the height of the whole chest expander becomes very high, and the volume ratio is large. If the wire wheels are arranged up and down, the wire wheels and the motor are transversely arranged; due to the existence of the speed reducing mechanism, a certain space is staggered between the motor and the reel, a space is formed at the periphery of the reel, and the space can be just used for installing the reversing mechanism. So that the pull cord can extend out of the opening in the top of the housing even if the reel is laterally positioned. In addition, the reversing mechanism does not occupy extra height space, so that the height of the whole chest expander is obviously reduced compared with a reel, a motor and a vertically arranged scheme.

Drawings

FIG. 1 is a schematic view of a chest expander attachment strap in accordance with a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of a chest expander connection door anchor in accordance with a preferred embodiment of the present utility model;

FIG. 3 is a schematic view of a chest-expander connection ankle strap in accordance with a preferred embodiment of the present utility model;

FIG. 4 is an exploded view of the chest expander attachment strap of the preferred embodiment of the present utility model;

FIG. 5 is an exploded view of the chest-expander attachment door anchor or ankle strap of the preferred embodiment of the present utility model;

FIG. 6 is an exploded view of the motor, reel of the preferred embodiment of the present utility model;

FIG. 7 is an assembly view of a motor, reel, and reversing mechanism in accordance with a preferred embodiment of the present utility model;

FIGS. 8 and 9 are partial cross-sectional views of FIG. 7, respectively;

FIG. 10 is a schematic drawing showing the orientation of a pull cord in accordance with a preferred embodiment of the present utility model;

fig. 11 is a sectional view of the chest expander in a preferred embodiment of the present utility model.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," configured to, "" engaged with, "" connected to, "and the like are to be construed broadly, and may be, for example," connected to, "wall-mounted," connected to, removably connected to, or integrally connected to, mechanically connected to, electrically connected to, directly connected to, or indirectly connected to, through an intermediary, and may be in communication with each other between two elements, as will be apparent to those of ordinary skill in the art, in view of the detailed description of the terms herein.

Referring to fig. 1-11, the present embodiment provides a chest expander, including: a shell 1, a handle 2, a motor 3, a reel 8 and a pull rope 4;

the reel 8 is arranged in the housing 1; one end of the pull rope 4 is connected with the handle 2, and the other end passes through an opening 11 arranged at the top of the shell 1 and then is wound on the reel 8 through a reversing mechanism 5 arranged at the periphery of the reel 8; the output rotating shaft of the motor 3 is connected with the winding wheel 8 through a speed reducing mechanism 6.

According to the chest expander, the motor 3 drives the reel 8 to rotate through the speed reducing mechanism 6, so that the reel 8 can be driven to rotate towards the wire winding direction to provide resistance when a user pulls the pull rope 4, and after the chest expander is decelerated through the speed reducing mechanism 6, the rotation speed of the reel 8 is relatively slow, and relatively proper resistance can be provided to enable the user to obtain a good exercise effect. Since the motor 3 is to drive the reel 8 to rotate, the motor 3 and the reel 8 need to be arranged up and down or left and right; if left and right arrangement is adopted, the reel 8, the motor 3 and the vertical space occupied by the speed reducing mechanism 6 are required to be placed vertically, and the whole chest expander becomes very high in height and large in volume. If the wire wheels are arranged up and down, the wire wheels and the motor 3 are transversely arranged; due to the presence of the reduction mechanism 6, the motor 3 and the reel 8 are offset by a certain space, and a space is formed on the peripheral side of the reel 8, and the space can be just used for installing the reversing mechanism 5. So that the pull cord 4 can extend out of the opening 11 in the top of the housing 1 even if the reel 8 is laterally positioned. And this arrangement does not take up additional height space for the reversing mechanism 5, so that the overall chest expander height is significantly reduced compared to the reel 8 and motor 3 and vertical placement.

Since the rope 4 is wound around the reel 8 with a certain distance between the reversing mechanism and the circumferential side of the reel 8, it is necessary to separate the part of the rope 4 that is to pass through the reversing mechanism 5 from the reel 8 in order to allow the rope 4 to pass through the reversing mechanism. For this purpose, a rope-discharging bearing device 9 is arranged between the reel 8 and the reversing mechanism 5, wherein the rope-discharging bearing device 9 is arranged on the circumference side of the reel 8. Specifically, the payout means comprises two payout bearings 91 spaced radially from the reel 8, and the rope 4 is separated from the reel 8 by passing through a passage formed between the two payout bearings.

The reversing mechanism 5 is a rope rotating bearing device 51 arranged on the periphery side of the reel 8; specifically, the rope rotating bearing device comprises two rope rotating bearings 51 which are arranged at intervals along the circumferential direction of the reel 8, a channel along the height direction of the reel 8 is formed between the two rope rotating bearings 51, and after the pull rope 4 enters the channel from the bottom of one rope rotating bearing 51, the pull rope is turned towards the opening 11.

In order to achieve the deceleration driving of the motor 3 to the reel 8, the deceleration mechanism 6 includes a first gear 61 and a second gear 62, the first gear 61 is engaged with the output rotation shaft of the motor 3, and the second gear 62 is coaxially disposed with the rotation shaft of the reel 8 and engaged with the first gear 61; the diameter of the second gear 62 is larger than the diameter of the first gear 61. The diameter ratio of the second gear 62 and the first gear 61 may be set according to the degree of deceleration required.

The stretcher alone cannot be used and needs to be used with other fitness components 7, such as ankle strap or door anchors or foot pedals, to fix the stretcher in one position. The bottom of the housing 1 is thus provided with a connection hole 12 for connection with the exercise assembly 7, the exercise assembly 7 having a connection piece 71 for cooperation with the connection hole 12. To allow quick connection and disconnection of the tensioner and exercise assembly 7, the coupling member 71 has a coupling post 711 and two stop ears 712 extending radially outwardly from the coupling post 711;

when the limiting lug 712 is aligned with the connecting hole 12, the body-building component 7 is in limiting fit with the connecting piece 71, and the connecting piece 71 can be inserted into the connecting hole 12 or the connecting piece 71 can be separated from the connecting hole 12; when the limiting lug 712 is staggered from the connecting hole 12, the bottom of the body-building component 7 of the limiting lug 712 is in limiting fit. Therefore, when the exercise assembly 7 is installed, the connecting hole 12 of the exercise assembly 7 and the connecting piece 71 are aligned so that the connecting piece 71 is inserted into the connecting hole 12, and then the exercise assembly 7 is rotated so that the limiting ears 712 and the connecting hole 12 are staggered, thus completing the installation of the exercise assembly 7. The above operations are only performed in reverse when the exercise assembly 7 is disassembled.

In this embodiment, the exercise assembly 7 may also be a strap, and since the strap cannot be provided with the above-mentioned connecting member 71, in order to connect the strap, the bottom of the housing 1 is further provided with two protrusions 13, and the protrusions 13 are rotatably connected with the door-shaped connecting member 15 through the pins 14. The two ends of the binding belt respectively pass through the door-shaped connecting piece 15 and then can be connected with the door-shaped connecting piece 15.

The foregoing is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto, and any person skilled in the art will be able to make insubstantial modifications of the present utility model within the scope of the present utility model disclosed herein by this concept, which falls within the actions of invading the protection scope of the present utility model.

Claims

1. A chest expander, comprising: the device comprises a shell, a handle, a motor, a reel and a pull rope;

2. A chest expander as claimed in claim 1, wherein: the opening is provided at the top of the housing.

3. A chest expander as claimed in claim 1, wherein: and a rope outlet bearing device is arranged between the reel and the reversing mechanism and is arranged on the periphery of the reel, so that the pull rope is separated from the reel after passing through the rope outlet bearing device.

4. A chest expander according to any one of claims 1-3, wherein: the reversing mechanism is a rope rotating bearing device; the pull rope passes through the rope rotating bearing device and then faces the opening.

5. A chest expander as claimed in claim 1, wherein: the output rotating shaft of the motor is connected with the reel through a speed reducing mechanism.

6. A chest expander according to claim 5, wherein: the speed reducing mechanism comprises a first gear and a second gear, the first gear is meshed with an output rotating shaft of the motor, and the second gear is coaxially arranged with the rotating shaft of the reel and meshed with the first gear; the diameter of the second gear is larger than that of the first gear.

7. A chest expander according to claim 1 wherein the bottom of the housing is provided with a connection aperture for connection to a fitness assembly having a connector for mating with the connection aperture.

8. The chest expander according to claim 7, wherein the connecting member has a connecting post and two limiting ears extending radially outwardly of the connecting post;

9. A chest expander according to claim 8 wherein the exercise assembly is an ankle strap or a door anchor or a foot pedal.

10. The chest expander according to claim 1, wherein the bottom of the housing is further provided with a protrusion, the protrusion is rotatably connected to one end of the door-shaped connecting piece through a latch, and the other end of the door-shaped connecting piece is connectable to a binding belt.