CN217854310U

CN217854310U - Chest developer

Info

Publication number: CN217854310U
Application number: CN202221420185.8U
Authority: CN
Inventors: 王英梅; 刘翼菲; 刘翼茜; 陈柳伊; 刘博朗
Original assignee: Killer Whale Yongkang Intelligent Technology Co ltd
Current assignee: Killer Whale Yongkang Intelligent Technology Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-11-22
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses a chest expander, wherein the power control structure can adjust the stretching force of the stay cord and is used for stretching or retracting the stay cord, and the power control structure comprises a first shell, a second shell which can rotate relative to the first shell, a tension adjusting component which can be linked with the second shell, a stay cord winding component which is provided with the stay cord and can be restricted by the tension adjusting component, and an electric control component which is used for driving and/or power control; the supporting structure can be fixed on a plane or arranged on an external structure and used for supporting and/or accommodating the power control structures, and the two power control structures are respectively arranged at two ends of the supporting structure in the length direction. The utility model discloses a pulling force adjusting part, stay cord winding assembly and automatically controlled subassembly can make the tensile resistance of stay cord adjustable, can not obstruct the stay cord again and receive again, and stability is good, and bearing structure is used for connecting the power control structure on the one hand, and on the other hand also can fix the wall or install on other body-building equipment, and the practicality is strong.

Description

Chest developer

Technical Field

The utility model relates to a body-building apparatus technical field, concretely relates to chest expander.

Background

With the development of the times, the chest expander also starts to be a fashionable road. The clumsy chest-developer can only be used in home, can not meet the requirements of people for exercising anytime and anywhere, has poor portability and has great danger in the using process. The chest expander is safer and convenient to use, and can meet the requirements of people. The portable chest expander gradually forms trend, and more people with still-fitting body-building begin to use the portable chest expander. The chest expander becomes a new favorite which people carry with. The chest developer is an apparatus suitable for mass body building and exercising, and can be divided into common spring chest developers, various chest developers with handles, elastic rope chest developers, pedal chest developers and the like, wherein the common spring chest developers can adjust the tension through replacing springs, and the common spring chest developers especially pay attention to checking whether the hooks and the springs are firm and well hung, so that the springs are prevented from being separated from the hooks during exercising, and the springs are thrown to users, thereby causing danger.

The prior art discloses an adjustable chest expander (No. CN 214512465U), which comprises a fixing device connected with the outside, a shell connected with the fixing device, a pull rope mechanism arranged in the shell, and a handheld part extending out of the shell, wherein the pull rope mechanism at least comprises a first coil spring unit, a second coil spring unit and a sleeve for winding the pull rope, and the center of the sleeve extends to form a left lengthened section; the second coil spring unit comprises a second coil spring sleeved on the left lengthened section and one end of the second coil spring is connected with the left lengthened section, and a first locking mechanism connected with the other end of the second coil spring; when the first locking mechanism locks or unlocks the other end of the second coil spring, the first coil spring and the second coil spring of the first coil spring unit can be used in combination to adjust the force required to pull the pull rope. Above-mentioned the utility model discloses the design that has a plurality of wind spring units to when the user adjusted the pulling force size, need the stack to use different wind spring units, because the wind spring unit receives its elastic factor's influence big, thereby pulling force's adjustment is accurate inadequately, and uses for a long time and can make the wind spring elastic force descend, leads to tensile adjustment not stable enough.

Disclosure of Invention

The utility model discloses not enough to among the prior art, provide a chest expander, the utility model discloses a pulling force adjusting part, stay cord winding assembly and automatically controlled subassembly can make the tensile resistance of stay cord adjustable, can not obstruct the stay cord again and receive again, and stability is good, and bearing structure is used for connecting the power control structure on the one hand, and on the other hand also can fix the wall or install on other body-building equipment, and the practicality is strong.

The utility model discloses a following technical scheme can solve:

a chest expander, comprising:

the power control structure can adjust the tensile force of the pull rope and is used for stretching or retracting the pull rope, and the power control structure comprises a first shell, a second shell which can rotate relative to the first shell, a tension adjusting component which can be linked with the second shell, a pull rope winding component which is provided with the pull rope and can be constrained with the tension adjusting component, and an electric control component which is used for driving and/or power control;

the supporting structure can be fixed on a plane or arranged on an external structure and used for supporting and/or accommodating the power control structures, and the two power control structures can be respectively detached from two ends of the supporting structure in the length direction.

Preferably, the first shell comprises a fixed sleeve arranged opposite to the second shell, a pull rope outlet sleeve connected with the fixed sleeve, and a die-casting shell of which two ends are respectively connected with the pull rope outlet sleeve and the second shell;

the pull rope outlet sleeve is provided with a stretching hole for stretching the pull rope outwards or retracting the pull rope inwards, and the die-casting shell is internally provided with a fixed plate for connecting a pressure spring on the tension adjusting assembly.

Preferably, the first shell and the second shell form a hollow cavity in a surrounding manner, the electric control assembly is located in the hollow cavity and comprises a gear shifting circuit board located at the tension adjusting assembly and connected with the fixing plate, a driving plate located at the pull rope winding assembly and connected with the fixing sleeve, and a battery piece capable of storing electricity; and the fixed sleeve is also provided with a charging port for connecting an external power supply interface.

Preferably, the pull rope winding assembly comprises a first shaft, a contraction barrel sleeved on the first shaft, a pull rope and a coil spring wound on the contraction barrel, a one-way assembly sleeved on the first shaft and/or the contraction barrel and rotating synchronously with the contraction barrel, and a fixing assembly for fixing the coil spring; the fixing assembly comprises a coil spring fixing head sleeved on the first shaft and a coil spring fixing plate sleeved on the coil spring fixing head;

the inner wall of the fixed sleeve is provided with a first supporting part connected with the coil spring fixing head and connected with the first shaft, and a second supporting part used for fixing the driving plate and/or the battery piece.

Preferably, the coil spring fixing plate is provided with a plurality of clamping pieces arranged along the circumferential direction of the coil spring fixing plate and balls connected with the clamping pieces on the side close to the driving plate; the clamping piece comprises two oppositely arranged convex parts, and clamping grooves for accommodating and/or moving the balls are formed by the convex parts at intervals.

Preferably, the tension adjusting assembly comprises a second shaft rotatably connected with one end of the first shaft, a transmission assembly sleeved on the second shaft and connected with the second shell, a pressure spring connected with the transmission assembly, and a pressing assembly connected with the pressure spring and capable of restraining the rotation of the one-way assembly;

the inner wall of the second shell is provided with a first connecting column and a second connecting column positioned on the periphery of the first connecting column, and the first connecting column and the second connecting column are separated to form a transmission cavity; the second shaft comprises a first shaft part fixedly connected with the second shell, a second shaft part connected with the transmission assembly and a third shaft part connected with the pressing assembly, and a gear adjusting groove for axial movement of the transmission assembly is formed in the second shaft part.

Preferably, the axial length of the first connecting column is smaller than that of the second connecting column; the transmission assembly comprises a first transmission part, a second transmission part, a blocking part and an abutting part, wherein the first transmission part is sleeved on the second shaft part and matched with the gear adjusting groove;

the second transmission part is located the second connecting column and can carry out axial motion along the transmission cavity, the diameter of the blocking part is greater than that of the second transmission part, and the blocking part is far away from the blocking part side by the abutting part and is provided with a separation blade for the pressure spring to abut against.

The utility model discloses the main beneficial effect who gains as follows:

the utility model discloses in, two power control structures are located bearing structure length direction's both ends respectively, and the user can fix bearing structure on ground, wall or fix bearing structure on other body-building apparatus to reach the body-building effect of taking exercise different positions, and need explain that, this power control structure also can follow bearing structure and dismantle, so that the user places and accomodates or go out to carry the use. When the user need adjust the tensile strength of stay cord, the user is through rotating first casing to impel the rotation of pulling force adjusting part restraint stay cord coiling assembly, consequently according to the principle of the aforesaid regulation tensile force degree, learn through adjusting first casing, make the frictional force increase or reduce between pulling force adjusting part and the stay cord coiling assembly, when frictional force increases, the user is hard when the pulling stay cord, and when frictional force reduced, the user was laborsaving when the pulling stay cord. Therefore, the utility model discloses a pulling force adjusting part, stay cord coiling assembly and automatically controlled subassembly can make the tensile resistance of stay cord adjustable, can not obstruct the stay cord again and receive again, and stability is good, and bearing structure is used for connecting the power control structure on the one hand, and on the other hand also can fix at arbitrary installation face or install on other body-building equipment, and the practicality is strong.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of a chest expander according to an embodiment of the present invention.

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

Fig. 3 is a schematic structural view of a pull cord winding assembly according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a tension adjusting assembly according to an embodiment of the present invention.

Fig. 5 is an exploded view of the tension adjusting assembly according to an embodiment of the present invention.

Fig. 6 is an exploded view of a cord winding assembly according to an embodiment of the present invention.

Fig. 7 is a schematic view of a second shaft according to an embodiment of the present invention.

Fig. 8 is a schematic view of a transmission assembly according to an embodiment of the present invention.

Fig. 9 is a schematic view of a second housing according to an embodiment of the present invention.

Fig. 10 is a schematic view of a fixing sleeve according to an embodiment of the present invention.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention will be combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one.

As shown in fig. 1 to 10, as an embodiment of the present invention, a chest developer is disclosed, which is an apparatus suitable for mass exercise, and a user can exercise the limbs by pulling a pull rope. The utility model provides a chest expander mainly comprises a power control structure and a supporting structure, wherein the power control structure is mainly used for adjusting the stretching force of the pulling rope and is used for stretching or recovering the pulling rope, the power control structure comprises a first shell 11, a second shell 12 which can rotate relative to the first shell 11, a pulling force adjusting component 3 which can be linked with the second shell 12, a pulling rope winding component 2 which is provided with a pulling rope 23 and can be restricted with the pulling force adjusting component 3, and an electric control component 4 which is used for driving and/or power control; the supporting structure can be fixed on a plane or installed on an external structure and used for supporting and/or storing the power control structure, two power control structures can be respectively disassembled at two ends of the length direction of the supporting structure, if a user can fix the supporting structure on the ground, a wall surface or fix the supporting structure on other fitness equipment, the fitness effect of exercising different parts is achieved, and the power control structure can also be disassembled from the supporting structure so as to be convenient for the user to place, store or carry for use when going out. When the user need adjust the tensile strength of stay cord, the user is through rotating first casing 11 to impel the rotation of 3 restraint stay cord winding assemblies 2 of pulling force adjusting part, consequently according to the principle of the tensile dynamics of above-mentioned regulation, learn through adjusting first casing 11, can make the frictional force increase or reduce between pulling force adjusting part 3 and the stay cord winding assemblies 2, when frictional force increases, the user is hard when pulling stay cord 23, when frictional force reduces, the user is laborsaving when pulling stay cord 23. Therefore, the utility model discloses a pulling force adjusting part 3, stay cord winding assembly 2 and automatically controlled subassembly 4 can make the tensile resistance of stay cord adjustable, can not obstruct the stay cord again and receive again, and stability is good, and bearing structure is used for connecting the power control structure on the one hand, and on the other hand also can be fixed at arbitrary installation face or install on other body-building equipment, and the practicality is strong.

As an embodiment of the present invention, the first casing 11 includes a fixed sleeve 111 disposed opposite to the second casing 12, a pull rope outlet sleeve 112 connected to the fixed sleeve 111, and a die-cast shell 113 having two ends connected to the pull rope outlet sleeve 112 and the second casing 11 respectively; in other embodiments, the pull-cord outlet sleeve 112 is provided with a tension hole 231 for outward stretching or inward retracting the pull cord 23, and the die-cast housing 113 is provided with a fixing plate 301 for connecting with the compression spring 33 of the tension adjusting assembly 3. As an embodiment of the present invention, the first housing 11 and the second housing 12 surround to form a hollow cavity 100, the electric control assembly 4 is located in the hollow cavity 100, including the shift circuit board 41 located at the tension adjusting assembly 3 and connected to the fixing plate, the driving board 42 located at the pull rope winding assembly 2 and connected to the fixing sleeve 111, and the battery 43 capable of storing electricity, and the fixing sleeve 111 is further provided with a charging port 44 for connecting an external power source interface, so that the user can charge the battery 43 and use the chest expander cyclically.

As an embodiment of the present invention, the pull rope winding assembly 2 includes a first shaft 21, a contraction barrel 22 sleeved on the first shaft 21, a pull rope 23 and a coil spring 25 wound on the contraction barrel 22, a one-way assembly 25 sleeved on the first shaft 21 and/or the contraction barrel 22 and rotating synchronously with the contraction barrel 22, and a fixing assembly 26 for fixing the coil spring 25; the fixing assembly 26 is used for preventing the coil spring 25 from being excessively displaced during the rotation process, and the fixing assembly 26 includes a coil spring fixing head 261 sleeved on the first shaft 21 and a coil spring fixing plate 262 sleeved on the coil spring fixing head 261. In other embodiments, the inner wall of the fixing sleeve 111 is provided with a first support 1111 coupled to the coil spring fixing head 261 and coupled to the first shaft 21, and a second support 1112 for fixing the driving plate 42 and/or the battery unit 43. As an embodiment of the present invention, the coil spring fixing plate 262 is provided with a plurality of clamping members 2621 arranged along the circumferential direction of the coil spring fixing plate 262 and balls 2622 connected to the clamping members 2621 on the side close to the driving plate 42; the engaging member 2621 includes two oppositely disposed protrusions, and the protrusions separate to form an engaging groove for receiving and/or moving the ball 2622. The utility model discloses in, this primary shaft 21 arranges along the length direction of well cavity 100, a be used for supplying a shrink section of thick bamboo 22 and one-way subassembly 25 to rotate, this shrink section of thick bamboo 22 cover is established and is connected on primary shaft 21, and be provided with stay cord 23 and wind spring 24 on the shrink section of thick bamboo 22 again, the user can outwards stretch stay cord 23 or loosen stay cord 23, and wind spring 24 is the structure that can continuously provide great restoring force in narrow and small space, can accomplish the back at mechanical component stroke, with the part home position, so as to be ready for next stroke, very strong recovery power has, additionally, this one-way subassembly 25 cover is established and is connected on primary shaft 21 or shrink section of thick bamboo 22, it needs to explain that, one-way subassembly 25 only can follow a direction and rotate, can not reverse, and this one-way subassembly 25 can directly be connected with primary shaft 21 rotation, also can be connected with partial or whole shrink section of thick bamboo 22 rotation. Therefore, in actual use, when the user pulls the pulling rope 23 outward, the pulling force of the pulling rope 23 drives the retraction cylinder 22 to rotate relative to the first shaft 21, and at the same time, the rotation of the retraction cylinder 22 will drive the coil spring 24 to rotate in the retraction cylinder 24, and simultaneously drive the rotation of the one-way component 25.

As an embodiment of the present invention, the tension adjusting assembly 3 includes a second shaft 31 rotatably connected to one end of the first shaft 21, a transmission assembly 32 sleeved on the second shaft 31 and connected to the second housing 12, a compression spring 33 connected to the transmission assembly 32, and a compression assembly 34 connected to the compression spring 33 and capable of constraining the rotation of the one-way assembly 25; the inner wall of the second casing 12 is provided with a first connecting column 121 and a second connecting column 122 located at the periphery of the first connecting column 121, and the first connecting column 121 and the second connecting column 122 are separated to form a transmission cavity 123; the second shaft 31 includes a first shaft portion 311 fixedly connected to the second housing 12, a second shaft portion 312 connected to the transmission assembly 32, and a third shaft portion 313 connected to the pressing assembly 34, and the second shaft portion 312 is provided with a gear position adjusting groove 314 for allowing the transmission assembly 32 to move axially. As an embodiment of the present invention, the axial length of the first connection column 121 is smaller than that of the second connection column 121, so that the partial transmission assembly 32 is located in the transmission cavity 123. In other embodiments, the transmission assembly 32 includes a first transmission portion 321 sleeved on the second shaft portion 312 and matching with the shift position adjusting groove 314, a second transmission portion 322 connected to an outer periphery of the first transmission portion 321, a blocking portion 323 connected to an outer periphery of the second transmission portion 322, and an abutting portion 324 connected to an outer periphery of the blocking portion 323; in addition, in some other embodiments, the second transmission part 322 is located in the second connecting column 122 and can move axially along the transmission cavity 123, it should be noted that, in the present invention, the diameter of the second transmission part 323 is greater than the diameter of the second transmission part 322, so as to avoid excessive movement of the second transmission part 322, and the abutting part 324 is provided with a blocking piece for abutting against the pressure spring 33 on the side away from the second transmission part 322.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims

1. A chest expander, comprising:

2. A chest expander as claimed in claim 1, wherein: the first shell comprises a fixed sleeve arranged opposite to the second shell, a pull rope outlet sleeve connected with the fixed sleeve, and a die-casting shell of which two ends are respectively connected with the pull rope outlet sleeve and the second shell;

3. A chest expander as claimed in claim 2, wherein: the first shell and the second shell surround to form a hollow cavity, the electric control assembly is positioned in the hollow cavity and comprises a gear shifting circuit board, a driving plate and a battery piece, wherein the gear shifting circuit board is positioned at the tension adjusting assembly and is connected with the fixing plate, the driving plate is positioned at the pull rope winding assembly and is connected with the fixing sleeve, and the battery piece can store electricity; and the fixed sleeve is also provided with a charging port for connecting an external power supply interface.

4. A chest expander as claimed in claim 3, wherein: the pull rope winding assembly comprises a first shaft, a contraction barrel sleeved on the first shaft, a pull rope and a coil spring wound on the contraction barrel, a one-way assembly sleeved on the first shaft and/or the contraction barrel and rotating synchronously with the contraction barrel, and a fixing assembly for fixing the coil spring; the fixing assembly comprises a coil spring fixing head sleeved on the first shaft and a coil spring fixing plate sleeved on the coil spring fixing head;

5. The chest developer of claim 4, wherein: the side, close to the driving plate, of the coil spring fixing plate is provided with a plurality of clamping pieces arranged along the circumferential direction of the coil spring fixing plate and balls connected with the clamping pieces; the clamping piece comprises two oppositely arranged convex parts, and the convex parts form clamping grooves for accommodating and/or moving the balls at intervals.

6. The chest expander of claim 5, wherein: the tension adjusting assembly comprises a second shaft rotationally connected with one end of the first shaft, a transmission assembly sleeved on the second shaft and connected with the second shell, a pressure spring connected with the transmission assembly, and a pressing assembly connected with the pressure spring and capable of restraining the rotation of the one-way assembly;

7. The chest expander of claim 6, wherein: the axial length of the first connecting column is smaller than that of the second connecting column; the transmission assembly comprises a first transmission part, a second transmission part, a blocking part and an abutting part, wherein the first transmission part is sleeved on the second shaft part and matched with the gear adjusting groove;

the second transmission part is located in the second connecting column and can axially move along the transmission cavity, the diameter of the second blocking part is larger than that of the second transmission part, and a blocking piece for the pressure spring to abut against is arranged on the side, far away from the blocking part, of the abutting part.