CN111991748B

CN111991748B - Strength training machine

Info

Publication number: CN111991748B
Application number: CN202010899237.3A
Authority: CN
Inventors: 孟子杰; 叶全胜
Original assignee: Guangzhou Yuandong Smart Sports Technology Co Ltd
Current assignee: Guangzhou Yuandong Smart Sports Technology Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2022-06-10
Anticipated expiration: 2040-08-31
Also published as: CN111991748A

Abstract

The invention provides a strength training machine, which comprises a first support, a second support and a first connecting assembly, wherein the first connecting assembly comprises a connecting handle, the first end of the first support and the first end of the second support are symmetrically provided with tension assemblies, each tension assembly comprises a handle assembly and a counterweight mechanism, each counterweight mechanism comprises a resistance adjusting assembly and a driving wheel, each handle assembly comprises a tension piece, each tension piece is fixed on each driving wheel, and each driving wheel rotates under the driving of each resistance adjusting assembly so that each tension piece is wound on the wheel surface of each driving wheel and generates counterweight pulling force; the second end of the first bracket and the second end of the second bracket are hinged through a connecting handle so as to switch the first bracket and the second bracket between a folding state and a unfolding state. According to the strength training machine provided by the invention, the counterweight mechanism is not easy to shake, can be folded by one hand and is convenient to fold.

Description

Strength training machine

Technical Field

The invention relates to the field of fitness equipment, in particular to a strength training machine.

Background

With the continuous improvement of living standard, people pay more and more attention to the health of the body. Therefore, various fitness equipments are beginning to be popularized in our lives.

Current strength training apparatus can all set up the balancing weight including left socle and right branch frame on left socle and the right branch frame, and left socle and right branch frame are connected through the pivot, from this, realize the folding of strength training apparatus to in accomodate strength training apparatus.

However, when the strength training apparatus is folded, the weight member is easily shaken, which is inconvenient for folding the strength training apparatus.

Disclosure of Invention

The invention provides a strength training machine, wherein a weight mechanism of the strength training machine is not easy to shake, can be folded by one hand and is convenient to fold.

The invention provides a strength training machine, which comprises a first support, a second support and a first connecting assembly, wherein the first connecting assembly comprises a connecting handle, the first end of the first support and the first end of the second support are symmetrically provided with tension assemblies, each tension assembly comprises a handle assembly and a counterweight mechanism, each counterweight mechanism comprises a resistance adjusting assembly and a driving wheel, each handle assembly comprises a tension piece, the first end of each tension piece is used for a user to apply tension, the second end of each tension piece is fixed on the driving wheel, and the driving wheel rotates under the driving of the resistance adjusting assembly so as to enable the tension pieces to be wound on the wheel surfaces of the driving wheels and generate counterweight pulling force;

the second end of the first bracket and the second end of the second bracket are hinged through a connecting handle so as to switch the first bracket and the second bracket between a folded state and an unfolded state, wherein when the first bracket and the second bracket are folded, the two tension assemblies are abutted; in the unfolded state, the two tension assemblies are in the same plane.

Optionally, the strength training machine provided by the invention has at least two first connecting pieces at the second end of the first bracket, at least two second connecting pieces at the second end of the second bracket, the connecting handle includes a handle body, connecting portions are respectively provided at both ends of the handle body, each connecting portion is respectively hinged to the corresponding first connecting piece and the corresponding second connecting piece, and a gap is provided between the corresponding first connecting piece and the corresponding second connecting piece.

Optionally, in the strength training machine provided by the invention, the first connecting assembly further comprises two third connecting members, and the third connecting members are hinged to the first connecting member and the second connecting member which are located on the outer sides.

Optionally, in the strength training machine provided by the invention, the first connecting piece on the outer side and/or the second connecting piece on the outer side are/is further provided with a limiting piece, and when the strength training machine is in the unfolded state, the limiting piece is abutted against the side surface of the third connecting piece, which faces the upper surface of the first bracket or the second bracket.

Optionally, the counterweight mechanism of the strength training machine provided by the invention further comprises a guide unit, the guide unit comprises a support frame, the drive wheel and the first end of the tension member are respectively located at two opposite sides of the support frame, the support frame is provided with an avoidance hole, and the tension member penetrates through the avoidance hole.

Optionally, in the strength training machine provided by the invention, the guide unit further includes a first guide wheel and at least one second guide wheel, the first guide wheel and the second guide wheel are supported on opposite sides of the tension member, the first guide wheel and the second guide wheel are respectively located on opposite sides of the support frame, the driving wheel and the first guide wheel are located on the same side of the support frame, and the first end of the tension member and the second guide wheel are located on the same side of the support frame.

Optionally, in the strength training machine provided by the invention, the tension piece is a tension belt or a tension rope.

Optionally, in the strength training machine provided by the invention, the tension assembly further comprises a load bar, and the first ends of the two tension members are detachably connected with the load bar.

Optionally, in the strength training machine provided by the invention, the tension assembly further comprises at least two fixing assemblies, and the fixing assemblies are used for fixing the first ends of the tension members on the load bar.

Optionally, the fixing assembly of the strength training machine provided by the invention comprises a fixing sleeve and a fastener, the fixing sleeve is sleeved on the load bar, and the fastener is used for fixing the fixing sleeve on the load bar.

According to the strength training machine provided by the invention, the first support and the second support are arranged, the first end of the first support and the first end of the second support are both provided with the tension assembly, the tension assembly simulates a balance weight through the resistance adjusting assembly, and the resistance adjusting assembly drives the driving wheel to rotate so that the tension assembly is wound on the wheel surface of the driving wheel and generates balance weight pulling force. Thus, the strength training machine is not easy to shake when being folded or unfolded. The second end of first support and the second end of second support are articulated through connecting the handle, carry the connection handle through the one hand to make the second end of first support and the second end of second support rotate around connecting the handle respectively, connect simultaneously under the pulling force subassembly action of gravity of the first end of first support and the first end of second support, make the second end of first support and the second end of second support rise gradually along with connecting the handle, first support and second support progressively roll over to the fold condition that first support and second support were arranged back to back. The folding of strength training machine is realized through one hand, convenient operation, and simple structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a strength training machine in an unfolded state according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of another angle of the power training machine in the unfolded state according to the embodiment of the present invention;

FIG. 3 is a schematic diagram of the relative positions of a first frame and a second frame of the strength training machine according to the embodiment of the present invention;

FIG. 4 is a schematic structural view of a folding state of the strength training machine according to the embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a weight mechanism of a strength training machine according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a first frame of the strength training machine according to the embodiment of the present invention;

FIG. 7 is a schematic structural view of a first frame of the strength training machine at another angle according to the embodiment of the present invention;

FIG. 8 is a schematic structural view of a second frame of the strength training machine according to the embodiment of the present invention;

FIG. 9 is a schematic view of a structure of a connecting handle of the strength training machine according to the embodiment of the present invention;

FIG. 10 is an enlarged view of a portion of FIG. 4 at A;

FIG. 11 is an enlarged view of a portion of FIG. 4 at B;

12a and 12b are diagrams illustrating the use state of the strength training machine according to the embodiment of the present invention;

fig. 13 is a schematic structural view of a load bar, a fixing frame and a tension member in the strength training machine according to the embodiment of the invention.

Description of reference numerals:

100-a first scaffold; 110-a first support bar; 120-a first link; 130-a first connector; 131-a second via; 140-support ribs; 150-a first support plate;

200-a second scaffold; 210-a second support bar; 220-a second link; 230-a second connector; 231-third via holes; 240-a second support plate;

300-a first connection assembly; 310-connecting a handle; 311-a handle body; 312-a connecting portion; 3121-a first through hole; 320-a third connector;

400-a tension assembly; 410-a slide pad; 420-a pulley; 430-foot pad; 440-a handle assembly; 441-a tension member; 450-a counter weight mechanism; 451-a resistance adjustment assembly; 452-a drive wheel; 4521-connecting shaft; 453-a support; 4531-first support section; 4532-second support; 4533-first mounting hole; 4534 — second mounting hole; 4535-bearing seat; 454-a guiding unit; 4541-support frame; 4542-avoidance holes; 4543 — first guide wheel; 4544 — second guide wheel; 460-a housing; 461-Access-hole; 470-weight bar; 480-a fixation assembly; 481-fixed cover; 482-a fastener;

500-bolt;

600-screw caps;

700-a stop;

800-a pushrod configuration; 810-a drive assembly; 811-a pull rod; 812-a cable; 813-fixed seat; 820-a swing rod; 830-supporting seat; 831-locating slot;

900-a second connection assembly; 910-a magnetic element; 920-a magnetic attraction member; 930-a cannula; 940-a guide shaft; 950-a positioning shaft; 960-buffer;

1000-support member.

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 invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present invention, it should be noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, an indirect connection through intervening media, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element 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 invention.

The terms "first," "second," and "third" (if any) in the description and claims of the invention and the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or maintenance tool that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or maintenance tool.

The existing strength training apparatus with the folding function adopts a structure of a rotating shaft or a hinge to realize the folding of the strength training apparatus, so that the strength training apparatus is convenient to store. However, when the strength training apparatus is folded, the folding operation can be completed only by assistance of hands or feet, which is inconvenient.

Based on this, the invention provides a strength training machine which can be folded by one hand and is convenient to fold.

The present invention will be described in detail below with reference to specific examples.

FIG. 1 is a schematic structural diagram of a strength training machine in an unfolded state according to an embodiment of the present invention; FIG. 2 is a schematic structural view of another angle of the power training machine in the unfolded state according to the embodiment of the present invention; FIG. 3 is a schematic diagram of the relative positions of a first frame and a second frame of the strength training machine according to the embodiment of the present invention; FIG. 4 is a schematic structural view of a folding state of the strength training machine according to the embodiment of the present invention; FIG. 5 is a schematic structural diagram of a weight mechanism of a strength training machine according to an embodiment of the present invention; FIG. 6 is a schematic structural diagram of a first frame of the strength training machine according to the embodiment of the present invention; FIG. 7 is a schematic structural view of a first frame of the strength training machine at another angle according to the embodiment of the present invention; fig. 8 is a schematic structural view of a second bracket in the strength training machine according to the embodiment of the invention. Referring to fig. 1 to 8, the strength training machine provided by the embodiment of the present application includes a first bracket 100, a second bracket 200, and a first connecting assembly 300.

The first connecting assembly 300 comprises a connecting handle 310, the first end of the first bracket 100 and the first end of the second bracket 200 are symmetrically provided with a pulling assembly 400, the pulling assembly 400 comprises a pulling assembly 440 and a counterweight mechanism 450, the counterweight mechanism 450 comprises a resistance adjusting assembly 451 and a driving wheel 452, the pulling assembly 440 comprises a pulling element 441, the first end of the pulling element 441 is used for a user to apply pulling force, the second end of the pulling element 441 is fixed on the driving wheel 452, and the driving wheel 452 rotates under the driving of the resistance adjusting assembly 451, so that the pulling element 441 winds on the wheel surface of the driving wheel 452 and generates counterweight pulling force.

The second ends of the first bracket 100 and the second bracket 200 are hinged through the connecting handle 310, so that the first bracket 100 and the second bracket 200 can be switched between a folded state and an unfolded state, wherein in the folded state, the first bracket 100 and the second bracket 200 are arranged back to back, that is, the bottoms of the two tension assemblies 400 are abutted; in the unfolded state, the first bracket 100 and the second bracket 200 are arranged side by side, and at this time, the two tension assemblies 400 may be located in the same plane, and the first bracket 100 and the second bracket 200 are located in the same plane.

In this embodiment, the first bracket 100 and the second bracket 200 are used to support the tension assembly 400 connected thereto, respectively. The first bracket 100 and the second bracket 200 may have a rectangular frame shape. The first bracket 100 and the second bracket 200 may have the same structure.

Fig. 12a and 12b are diagrams illustrating a state of use of the strength training machine according to the embodiment of the present invention. Referring to fig. 1, 12a and 12b, in particular, the first bracket 100 may include at least two first support bars 110 and a first link 120 connected between the two first support bars 110. In order to facilitate a user to stand on the first stand 100, the first support plate 150 may be covered on the first support bar 110 and the first link 120. Accordingly, the second bracket 200 may include at least two second support bars 210 and a second link 220 connected between the two second support bars 210. In order to facilitate a user to stand on the second stand 200, a second support plate 240 may be covered on the second support bar 210 and the second link 220. The user is supported by the first and

second support plates

150 and 240.

In this embodiment, the resistance adjustment assembly 451 may be a motor, through which a counterweight is simulated. The motor drives the driving wheel 452 to rotate, so that the pulling element 441 is wound on the wheel surface of the driving wheel 452 and generates a counterweight pulling force. Thus, the strength training machine is not easy to shake when being folded or unfolded. Meanwhile, when the counterweight mechanism 450 is used for counterweight adjustment, the counterweight size of the counterweight mechanism 450 can be adjusted accurately, and the counterweights of the two tension assemblies 400 can be adjusted according to different requirements of users.

Fig. 1 and 2 are schematic views illustrating the unfolded state of the strength training machine according to the present embodiment, when the strength training machine is unfolded, the first support 100 and the second support 200 are arranged side by side, and a user pulls the pulling member 441 to perform strength training. When the strength training machine needs to be folded, the connecting handle 310 is lifted by one hand, the second end of the first support 100 and the second end of the second support 200 rotate around the connecting handle 310 respectively, meanwhile, under the action of the gravity of the pulling assembly 400 connected to the first end of the first support 100 and the first end of the second support 200, the second end of the first support 100 and the second end of the second support 200 are gradually lifted along with the connecting handle 310 to form a state shown in fig. 3, the first support 100 and the second support 200 are gradually folded until the strength training machine is folded to be the folded state shown in fig. 4, and the first support 100 and the second support 200 are arranged back to back, so that the strength training machine is convenient to store.

According to the strength training machine provided by the embodiment of the application, the first support 100 and the second support 200 are arranged, the tension assemblies 400 are symmetrically arranged at the first end of the first support 100 and the first end of the second support 200, a counterweight is simulated by the resistance adjusting assembly 451 in the tension assemblies 400, and the resistance adjusting assembly 451 drives the driving wheel 452 to rotate, so that the tension piece 441 is wound on the wheel surface of the driving wheel 452 and generates a counterweight pulling force. Thus, the strength training machine is not easy to shake when being folded or unfolded. The second end of the first bracket 100 and the second end of the second bracket 200 are hinged through a connecting handle 310, and the connecting handle 310 is pulled by a single hand, so that the second end of the first bracket 100 and the second end of the second bracket 200 respectively rotate around the connecting handle 310, and simultaneously, under the action of gravity of a pulling force assembly 400 connected to the first end of the first bracket 100 and the first end of the second bracket 200, the second end of the first bracket 100 and the second end of the second bracket 200 gradually rise along with the connecting handle 310, and the first bracket 100 and the second bracket 200 gradually fold up to a folded state in which the first bracket 100 and the second bracket 200 are arranged back to back. The folding of strength training machine is realized through one hand, convenient operation, and simple structure.

With continued reference to fig. 5-8, in particular implementations, the counterweight mechanism 450 can further include a support 453, the support 453 being configured to support the drive wheel 452 and the resistance adjustment assembly 451. Specifically, the support 453 has a first supporting portion 4531 and a second supporting portion 4532 opposite to each other, the first supporting portion 4531 has a first mounting hole 4533, and the second supporting portion 4532 has a second mounting hole 4534. A bearing seat 4535 is mounted in the first mounting hole 4533, the bearing seat 4535 may be connected to a first supporting part 4531, an output shaft of the resistance adjusting assembly 451 is inserted into a second mounting hole 4534, and the resistance adjusting assembly 451 is connected to a second supporting part 4532, the driving wheel 452 is located between the first supporting part 4531 and the second supporting part 4532, one side of the driving wheel 452 has a connecting shaft 4521, and the connecting shaft 4521 is inserted into a bearing in the bearing seat 4535 to support the driving wheel 452 and the resistance adjusting assembly 451 through a support 453. The support 453 may be connected to the first bracket 100 or the second bracket 200.

In some embodiments, the pulling force assembly 400 further comprises a housing 460, the counterweight mechanism 450 and the partial pulling force member 441 are positioned in the housing 460, the support 453 can be connected with the housing 460, and the housing 460 is connected with the first bracket 100 or the second bracket 200.

Specifically, the housing 460 has an access hole 461, and the first end of the pulling member 441 extends out of the housing 460 through the access hole 461.

The bottom and/or side walls of housing 460 have slide pads 410 or pulleys 420. Wherein the pulley 420 may be a universal wheel. By providing the sliding pad 410 or the pulley 420 at the bottom of the housing 460, the sliding pad 410 or the pulley 420 can assist in moving during the unfolding process or the folding process of the strength training machine, thereby facilitating the unfolding and folding of the strength training machine. The sliding pad 410 or the pulley 420 is disposed on the side wall of the housing 460, and when the strength training machine is folded to be erected, the sliding pad 410 or the pulley 420 on the side wall of the housing 460 contacts with the supporting surface of the strength training machine, thereby facilitating the movement of the folded strength training machine.

Optionally, at least two foot pads 430 are disposed at the bottom of the housing 460, and when the strength training machine is in the unfolded state, the foot pads 430 contact with the supporting surface of the strength training machine, and provide a buffer for the strength training machine when the strength training machine is in use.

FIG. 9 is a schematic structural view of a connecting handle of the strength training machine according to the embodiment of the present invention. With continued reference to fig. 1-3 and 6-9, the first and

second brackets

100 and 200 are hingedly connected to the connecting handle 310 for ease of use. In some embodiments, the second end of the first stand 100 has at least two first connectors 130 and the second end of the second stand 200 has at least two second connectors 230. The connection handle 310 includes a handle body 311, the handle body 311 has connection parts 312 at both ends thereof, each connection part 312 is hinged to the first connection member 130 and the second connection member 230, and a gap is formed between the first connection member 130 and the second connection member 230.

In the drawings of the present embodiment, the number of the first connecting members 130 and the second connecting members 230 is four. It is understood that the number of the first and

second connection members

130 and 230 may be more than four. The four first connecting members 130 and the four second connecting members 230 are respectively disposed at the second end of the first bracket 100 and the second end of the second bracket 200 at regular intervals. The second end of the first bracket 100 and the second end of the second bracket 200 are oppositely arranged, and the first connecting pieces 130 and the second connecting pieces 230 are in one-to-one correspondence, the connecting portion 312 at the first end of the handle body 311 can be respectively hinged with one of the first connecting piece 130 and the second connecting piece 230 which are opposite to each other and are positioned in the middle, and the connecting portion 312 at the second end of the handle body 311 can be respectively hinged with the other of the first connecting piece 130 and the second connecting piece 230 which are opposite to each other and are positioned in the middle. Therefore, the handle body 311 is connected to the middle parts of the first bracket 100 and the second bracket 200, and when the strength training machine is folded by one hand, the stress is uniform and stable.

Both sides of the handle main body 311 can be provided with round chamfers, thereby providing better hand feeling for the user and increasing the experience of the user.

Specifically, two first through holes 3121 may be provided in the connection part 312, the second through hole 131 and the third through hole 231 are provided in the first connection member 130 and the second connection member 230, respectively, the bolt 500 passes through the first through hole 3121 and the second through hole 131, respectively, to hinge the first connection member 130 and the connection part 312, and another bolt 500 passes through the first through hole 3121 and the third through hole 231, respectively, to hinge the second connection member 230 and the connection part 312. The bolt 500 is axially provided with an optical axis at the upper part, a part with threads, and the optical axis is located in the first through hole 3121 and a part of the second through hole 131, or the optical axis is located in the first through hole 3121 and a part of the third through hole 231, so that the first bracket 100 and the second bracket 200 can be smoothly rotated around the connection handle 310. The second and third through

holes

131 and 231 may be stepped holes through which the nut 600 is received, and the nut 600 is threadedly coupled with the threaded portion of the bolt 500.

In this embodiment, a gap is formed between the first connecting member 130 and the second connecting member 230, so that the interference between the first stand 100 and the second stand 200 during the folding process of the strength training machine is avoided. The end of the first connecting member 130 opposite to the second connecting member 230 may be provided with a chamfer, such as a round chamfer, so as to prevent the interference between the first bracket 100 and the second bracket 200 during the folding process of the strength training machine.

In order to stably couple the first and

second supports

100 and 200, the first and

second supports

100 and 200 are prevented from being deviated by rotating about the coupling handle 310. In some embodiments, the first connection assembly 300 further includes two third connection members 320, and the third connection members 320 are hinged to the first connection member 130 and the second connection member 230 located at the outer sides.

Specifically, the first bracket 100 has first connectors 130 on opposite sides thereof, and the second bracket 200 has second connectors 230 on opposite sides thereof. A third connecting member 320 is hinged to the second connecting member 230 of the first side of the first bracket 100 and, at the same time, is hinged to the second connecting member 230 of the first side of the second bracket 200. The other third connecting member 320 is hinge-coupled to the second connecting member 230 of the second side of the first bracket 100, and is hinge-coupled to the second connecting member 230 of the second side of the second bracket 200. The hinge structure of the third connecting member 320 and the first and second connecting

members

130 and 230 may be the same as the hinge structure of the connecting portion 312 and the first and second connecting

members

130 and 230, and will not be described herein again.

In some embodiments, the first connecting member 130 and/or the second connecting member 230 on the outer side further have a limiting member 700, and when the strength training machine is unfolded, the limiting member 700 abuts against the side surface of the third connecting member 320 facing the upper surface of the first frame 100 or the upper surface of the second frame 200. Thus, the first bracket 100 and the second bracket 200 are prevented from being folded reversely, and a limit is provided for unfolding the strength training machine. In a specific implementation, the limiting member 700 may be a cylinder or a limiting member.

The force training machine has the stress points concentrated on the first connecting member 130 and the second connecting member 230 during the folding process, and therefore, the supporting member 1000 can be arranged to increase the strength of the first connecting member 130 and the second connecting member 230. Specifically, at least one adjacent two first connecting members 130 and at least one adjacent two second connecting members 230 are connected by the supporting member 1000. Therefore, the strength of the first connecting piece 130 and the second connecting piece 230 is increased, and the first connecting piece 130 and the second connecting piece 230 are prevented from being deformed in the folding process of the strength training machine.

Fig. 10 is a partial enlarged view of a portion a in fig. 4. Referring to fig. 4, 6, 8 and 10, the strength training machine according to the embodiment of the present application further includes a second connecting assembly 900, and the second connecting assembly 900 is used for connecting the first frame 100 and the second frame 200 when the strength training machine is folded, so that the first frame 100 and the second frame 200 are kept in a back-to-back arrangement.

In one possible implementation manner, the second connection assembly 900 includes a magnetic element 910 and a magnetic attraction member 920, one of the magnetic element 910 and the magnetic attraction member 920 is located at the bottom of the first support 100, and the other is located at the bottom of the second support 200, and when the second support is folded, the magnetic element 910 is attracted to the magnetic attraction member 920. Specifically, the magnetic element 910 may be a magnet, and the magnetic attraction member 920 may be an iron member attracted by the magnet.

In the drawings of the present embodiment, the magnetic element 910 is located at the bottom of the first support 100, and the magnetic attraction member 920 is located at the bottom of the second support 200 for illustration. Referring to fig. 4 and 9, the second connecting assembly 900 further includes a sleeve 930, a guide shaft 940, a positioning shaft 950, and a buffer member 960, wherein the guide shaft 940 and the positioning shaft 950 are coaxially connected, and the guide shaft 940 is connected to the first bracket 100, for example, the first support rod 110 and the first link 120 of the first bracket 100 are connected to the support rib 140, and the support rib 140 provides a support force to the first support plate 150. The positioning shaft 950 is connected to the first link 120 or the support rib 140 of the first link 120. The buffer 960 and the sleeve 930 are sleeved on the guide shaft 940, the magnetic element 910 is connected to a first end of the sleeve 930, and the buffer 960 abuts against a second end of the sleeve 930. When the strength training machine is in a folded state, the magnetic element 910 drives the sleeve 930 to slide along the axial direction of the guide shaft 940, and the sleeve 930 gradually releases the pressure applied to the buffer 960 until the magnetic element 910 is attracted to the magnetic attraction member 920. When the strength training machine is in the unfolded state, the first end of the sleeve 930 abuts against a supporting surface (e.g., the ground) of the strength training machine, and the magnetic element 910 drives the sleeve 930 to slide along the axial direction of the guide shaft 940, so that the sleeve 930 abuts against the buffer 960, and applies pressure to the buffer 960, so that the sleeve 930 is flush with the bottom surface of the first bracket 100, and the bottom surface of the first bracket 100 is ensured to contact with the supporting surface of the strength training machine.

The buffer 960 may be one of a foam pad, a rubber pad, or a spring.

In another possible implementation manner, the second connecting assembly 900 includes a buckle (not shown) and a slot (not shown) matching with the buckle, one of the buckle and the slot is located at the bottom of the first bracket 100, and the other is located at the bottom of the second bracket 200, and when the second bracket is folded, the buckle is engaged with the slot. Through setting up draw-in groove and buckle, be convenient for connect first support 100 and second support 200 when fold condition, when the expansion state, also be convenient for open first support 100 and second support 200, convenient operation, and save the cost.

Referring to fig. 1, 2, and 4 to 7, the strength training machine according to the embodiment of the present application further includes a push rod structure 800, the push rod structure 800 is located at a bottom of one of the first support 100 and the second support 200, and when the push rod structure 800 is folded, the position-limiting member 700 is located above the third connecting member 320, and a pushing force can be applied to the other one through the push rod structure 800 to separate the first support 100 from the second support 200. At this time, the first stand 100 and the second stand 200 are slowly lowered down by grasping the connection handle 310 until the first stand 100 and the second stand 200 contact the support surface of the strength training machine to lay the first stand 100 and the second stand 200 flat, and the stopper 700 abuts against the third connector 320, so that the strength training machine can be unfolded with one hand.

The structure and the operation of the putter structure 800 will be described below with the putter structure 800 positioned at the bottom of the first frame 100. It is understood that the pushrod structure 800 may also be located at the bottom of the second support 200.

In a specific implementation, the push rod structure 800 may include a driving unit 810, a swing link 820 and a support 830, the driving unit 810 and the support 830 are connected to the first support 100, the swing link 820 is hinged to the support 830, the driving unit 810 is connected to the swing link 820, and the swing link 820 is driven to rotate around the support 830, so that the swing link 820 applies a pushing force to the second support 200, thereby separating the first support 100 from the second support 200.

When the swing link 820 is driven by the driving unit 810 to rotate around the supporting seat 830, the swing link 820 rotates towards the second support 200 and provides a pushing force to the second support 200 to separate the first support 100 and the second support 200, so as to unfold the strength training machine.

In the present application, the structure of the driving assembly 810 is not limited. For example, the driving unit 810 may be a motor, and an output shaft of the motor is connected to the swing link 820, and the swing link 820 is driven to rotate around the supporting seat 830 by the motor. When the driving unit 810 is a motor, the supporting base 830 may not be provided and the motor first bracket 100 is connected. Wherein, the driving button of the motor may be located at the second end of the first bracket 100 or at a side of the first bracket 100, thereby facilitating the user's operation of turning on and off the motor.

In some embodiments, the driving assembly 810 may include a pull rod 811, a pull cable 812 and a fixing seat 813, the fixing seat 813 is located at the second end of the first bracket 100, the pull rod 811 is inserted into the fixing seat 813, a first end of the pull cable 812 is connected with the pull rod 811, a second end of the pull rod 811 is connected with a second end of the swing link 820, the pull rod 811 moves relative to the fixing seat 813 by applying a pulling force to the pull rod 811, the pull rod 811 is driven to rotate around the supporting seat 830 by the pull cable 812, and a first end of the swing link 820 rotates towards the second bracket 200 and provides a pushing force to the second bracket 200. Wherein the cable 812 is a steel wire rope, a steel strand or a steel wire bundle.

In some embodiments, the supporting base 830 has a positioning slot 831, the swing link 820 is hinged in the positioning slot 831, and the positioning slot 831 is used for limiting the rotation angle of the swing link 820. Specifically, the notch of locating slot 831 is towards the second end of first support 100, and pendulum rod 820 can be the V type, and pendulum rod 820 is located locating slot 831, and the department of bending of pendulum rod 820 is articulated with locating slot 831, and pendulum rod 820 rotates around locating slot 831 until the diapire butt with locating slot 831, and pendulum rod 820 can't continue to rotate this moment to inject the turned angle of pendulum rod 820. In this embodiment, the rotation angle of the swing link 820 is not limited as long as the swing link 820 can separate the first bracket 100 from the second bracket 200.

In the present application, the second connecting assembly 900 is used to connect the first bracket 100 and the second bracket 200, and the push rod structure 800 is used to separate the first bracket 100 and the second bracket 200. The second connecting assembly 900 and the pusher structure 800 may be adjacently disposed, whereby the pusher structure 800 facilitates separation of the first bracket 100 and the second bracket 200.

Fig. 11 is a partial enlarged view of fig. 4 at B. Referring to fig. 1, 2, 4, 5 and 11, in the strength training machine according to the present invention, the counterweight mechanism 450 further includes a guide unit 454, the guide unit 454 includes a support frame 4541, the first ends of the driving wheel 452 and the tension member 441 are respectively located at two opposite sides of the support frame 4541, the support frame 4541 is provided with an avoiding hole 4542, and the tension member 441 penetrates through the avoiding hole 4542.

The guide unit 454 may further include a first guide wheel 4543 and at least one second guide wheel 4544, the first guide wheel 4543 and the second guide wheel 4544 are supported on opposite sides of the tension member 441, the first guide wheel 4543 and the second guide wheel 4544 are respectively located on opposite sides of the supporting frame 4541, the driving wheel 452 and the first guide wheel 4543 are located on the same side of the supporting frame 4541, and the first end of the tension member 441 and the second guide wheel 4544 are located on the same side of the supporting frame 4541.

In the embodiment, the number of the second guide wheels 4544 is two, and the tension member 441 is pulled out from the driving wheel 452, wound around the first guide wheel 4543, and then sequentially passes through the avoidance hole 4542 and the two second guide wheels 4544, and extends out of the housing 460 through the access hole 461 of the housing 460. The tension member 441 is guided by the first guide wheel 4543 and the second guide wheel 4544, so that the tension member 441 is prevented from being curled.

In a specific implementation, the tension member 441 may be a tension band or a tension rope.

Fig. 13 is a schematic structural view of a load bar, a fixing frame and a tension member in the strength training machine according to the embodiment of the invention. Referring to fig. 12a, 12b and 13, in some embodiments, the tension assembly 400 further comprises a load bar 470, and the first ends of both tension members 441 are detachably connected to the load bar 470. By providing the weight bar 470, the user can perform squat exercises.

In order to prevent the tension member 441 from falling off the load bar 470 when the load bar 470 is used, the tension assembly 400 further includes at least two fixing assemblies 480, and the fixing assemblies 480 are used for fixing the first end of the tension member 441 on the load bar 470.

Wherein, fixed subassembly 480 can include fixed cover 481 and fastener 482, fixed cover 481 cup joints on load bar 470, and fastener 482 is used for fixing fixed cover 481 on load bar 470. The fastener 482 may be a screw, and the fixing sleeve 481 has a screw hole, and the screw is inserted into the screw hole and abuts against the weight bar 470 to fix the fixing sleeve 481 on the weight bar 470. Thus, the fixing sleeve 481 can be easily detached.

In some embodiments, a retaining sleeve 481 may be provided, the retaining sleeve 481 may be internally threaded, the weight bar 470 may be externally threaded, and the retaining sleeve 481 and weight bar 470 may be threadably coupled. The fixing sheath 481 and the weight bar 470 can be detachably connected by a common method used by those skilled in the art, and the embodiment is not limited herein.

To facilitate the user's use of the strength training machine, the handle assembly 440 may further include a handle (not shown), and the first end of the tension member 441 is provided with a pull ring (not shown), on which the handle is detachably disposed. Through setting up the pull ring, the first end and the handle of the pulling force rope of being convenient for are connected. Wherein, the handle and the pull ring can be connected by a detachable connection mode commonly used by technicians in the field such as a key ring. The user can hold the handle to apply tension to the pull cord.

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 the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A strength training machine is characterized by comprising a sliding pad or a pulley, a first support, a second support and a first connecting assembly, wherein the first connecting assembly comprises a connecting handle, the first end of the first support and the first end of the second support are symmetrically provided with tension assemblies, each tension assembly comprises a handle assembly and a counterweight mechanism, each counterweight mechanism comprises a resistance adjusting assembly and a driving wheel, each handle assembly comprises a tension piece, the first end of each tension piece is used for a user to apply tension, the second end of each tension piece is fixed on the driving wheel, and the driving wheel rotates under the driving of the resistance adjusting assembly, so that the tension pieces are wound on the wheel faces of the driving wheels and generate counterweight pulling force;

the second end of the first bracket and the second end of the second bracket are hinged through the connecting handle so as to switch the first bracket and the second bracket between a folded state and an unfolded state, wherein in the folded state, the two tension assemblies are abutted; in the unfolding state, the two tension assemblies are positioned in the same plane;

the tension assembly further comprises a shell, and a sliding pad or a pulley is arranged at the bottom of the shell; the sliding pad or the pulley is used for assisting the movement of the strength training machine in the unfolding or folding process of the strength training machine;

the bottom of the shell is provided with at least two foot pads, and when the strength training machine is in an unfolded state, the foot pads are in contact with a supporting surface of the strength training machine;

further comprising a push bar structure located at the bottom of one of the first and second brackets for applying a pushing force to the other to separate the first and second brackets.

2. The strength training machine of claim 1, wherein the second end of the first frame has at least two first connectors, the second end of the second frame has at least two second connectors, the connection handle comprises a handle body having connection portions at both ends, each connection portion is hinged to the first and second connectors, and a gap is provided between the first and second connectors.

3. The strength training machine of claim 2 wherein the first linkage assembly further comprises two third links, the third links being hingedly connected to the first and second links on the outer side.

4. The strength training machine of claim 3, wherein the first outer link and/or the second outer link further comprises a stop member, and the stop member abuts against a side surface of the third link facing the upper surface of the first bracket or the second bracket in the unfolded state.

5. The strength training machine according to any one of claims 1 to 4, wherein the counterweight mechanism further comprises a guide unit, the guide unit comprises a support frame, the drive wheel and the first end of the tension member are respectively located on two opposite sides of the support frame, the support frame is provided with an avoiding hole, and the tension member is arranged in the avoiding hole in a penetrating manner.

6. The strength training machine of claim 5, wherein the guide unit further comprises a first guide wheel and at least one second guide wheel, the first guide wheel and the second guide wheel being supported on opposite sides of the tension member, the first guide wheel and the second guide wheel being located on opposite sides of the support frame, respectively, the drive wheel and the first guide wheel being located on a same side of the support frame as the first guide wheel, the first end of the tension member and the second guide wheel being located on a same side of the support frame as the second guide wheel.

7. Strength training machine as claimed in any of claims 1 to 4, characterized in that the tension element is a tension band or a tension rope.

8. Strength training machine according to any of claims 1 to 4, wherein the pulling force assembly further comprises a load bar, the first ends of both pulling force members being detachably connected to the load bar.

9. The strength training machine of claim 8, wherein the tension assembly further comprises at least two securing assemblies for securing the first end of the tension member to the load bar.

10. The strength training machine of claim 9 wherein the securing assembly comprises a securing sleeve that is sleeved over the weight bar and a fastener for securing the securing sleeve to the weight bar.