CN113546368A

CN113546368A - Body-building device capable of switching multiple body-building modes

Info

Publication number: CN113546368A
Application number: CN202110825039.7A
Authority: CN
Inventors: 唐宁潇; 舒颜开; 李良明; 蔡建光
Original assignee: Hunan University of Science and Technology
Current assignee: Hunan University of Science and Technology
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2021-10-26
Anticipated expiration: 2041-07-21
Also published as: CN113546368B

Abstract

The application provides a body-building device capable of switching multiple body-building modes, which comprises an installation frame and steel wires, wherein a first sliding sleeve is slidably sleeved on two front upright columns on the front side of the installation frame, a barbell unit capable of sliding up and down is arranged on the installation frame, and weight-adjustable counterweight units are arranged on two sides of the installation frame; after two ends of the steel wire bypass the top end of the counterweight unit, the steel wire is guided by a plurality of first guide rollers arranged on the mounting frame and then is respectively connected to the front side wall and the rear side wall of the first sliding sleeve; a limiting switching unit which is used for limiting the position of the first sliding sleeve on the front upright post and selectively driving the barbell unit to be connected with the first sliding sleeve is arranged on the side wall of the first sliding sleeve; the device of this application can satisfy the demand of multiple training mode, does not need the weight of frequent change barbell both ends counter weight dish in the barbell use, and the training continuity is good, can realize quantitative training and non-quantitative training simultaneously in training process, and training is effectual.

Description

Body-building device capable of switching multiple body-building modes

Technical Field

The invention relates to the field of fitness, in particular to a fitness device capable of switching multiple fitness modes.

Background

The smith frame is a common body-building apparatus in a gymnasium, the barbell sliding track of the smith frame is limited, a trainer can use heavy weight with great confidence, and the smith frame is not only limited to deep squat training, but also can be used for body-building training such as bench press, prone rowing, biceps muscle bending, heel lifting and the like.

The weight that the body-building personnel changed the weight of counter weight plate all needs body-building personnel to current smith frame body-building in-process such as squatting deeply, bench press to satisfy the needs of self training, at getting of counter weight plate, adorn the in-process, because of counter weight plate weight is heavier, cause the injury to body-building personnel easily, and frequent change is unfavorable for the continuity of body-building, utilizes smith frame body-building simultaneously, needs body-building personnel oneself to calculate the quantity of body-building action, is unfavorable for body-building personnel's quantitative training.

Disclosure of Invention

The invention aims to provide an exercise device capable of switching a plurality of exercise modes, which can be suitable for the plurality of exercise modes.

The invention aims to realize the technical scheme, which comprises an installation frame and a steel wire, wherein two front upright posts on the front side of the installation frame are slidably sleeved with a first sliding sleeve, the installation frame is provided with a barbell unit capable of sliding up and down, and two sides of the installation frame are provided with weight-adjustable counterweight units;

after two ends of the steel wire bypass the top end of the counterweight unit, the steel wire is guided by a plurality of first guide rollers arranged on the mounting frame and then is respectively connected to the front side wall and the rear side wall of the first sliding sleeve;

and a limiting switching unit which is used for limiting the position of the first sliding sleeve on the front upright post and selectively driving the barbell unit to be connected with the first sliding sleeve is arranged on the side wall of the first sliding sleeve.

Furthermore, a U-shaped mounting plate is mounted on the front side of the first sliding sleeve, and two second wire guide wheels are mounted on the inner side of the U-shaped mounting plate;

one end of the steel wire penetrates through the two second guide wire wheels and then is fixedly connected to the first limiting block, hanging rings used for mounting various fitness tools are mounted on the first limiting block, and the other end of the steel wire is fixedly connected to the rear side wall of the first sliding sleeve.

Further, the counterweight unit comprises a first slide rod, a counterweight block, a counterweight limiting plate, a first slide hole, a limiting column, a first limiting hole, a second limiting hole, a limiting column via hole, a first limiting bolt and a third wire guide wheel;

the two ends of the first sliding rod are respectively installed between the upper cross beam and the lower cross beam on the same side of the mounting frame, a plurality of balancing weights and balancing weight limiting plates with the same thickness are sequentially overlapped and placed on the lower cross beam of the mounting frame, the balancing weight limiting plates are located on the balancing weights, first sliding holes are formed in the balancing weights and the balancing weight limiting plates, and the first sliding holes are in sliding fit with the first sliding rod;

the lower surface of the counterweight limiting plate is provided with limiting columns, a plurality of first limiting holes are formed in the limiting columns at equal intervals, the interval between the first limiting holes is equal to the thickness of the counterweight block, limiting column via holes are formed in the counterweight blocks, second limiting holes are formed in the side walls of the counterweight blocks, the second limiting holes correspond to the first limiting holes in a one-to-one mode, and the first limiting bolts can be selectively inserted into any one group of corresponding first limiting holes and second limiting holes;

and a rotatable third wire guide wheel is mounted on the upper surface of the counterweight limiting plate, and two ends of the steel wire respectively bypass the third wire guide wheel.

Further, the barbell unit comprises a second slide bar, a second slide sleeve, a first mounting block, a barbell rod via hole, a counterweight disc, a first slide groove, a second limiting block, a first spring, a first limiting boss and a third limiting hole;

two ends of the second sliding rod are respectively installed between the upper cross beam and the lower cross beam on the same side of the mounting frame, the second sliding sleeve is sleeved on the second sliding rod in a sliding manner, one end of the first mounting block is fixedly connected to the side wall of the second sliding rod, a barbell rod through hole is formed in the first mounting block, the axis of the barbell rod through hole is perpendicular to the axis of the second sliding sleeve, and two ends of the barbell rod respectively penetrate through the barbell rod through holes on two sides and then are provided with a balance weight disc;

the other end of the first mounting block is provided with a first sliding chute penetrating through the other side wall of the first mounting block, the second limiting block is arranged in the first sliding chute in a sliding mode, the side wall, close to one end of the second sliding rod, of the second limiting block is connected with the side wall of the first sliding chute through a first spring, and the telescopic direction of the first spring is the same as the sliding direction of the second limiting block;

a third limiting hole matched with the second limiting block is formed in the rear side wall of the first sliding sleeve, and a first slotting cutter matched with the limiting switching unit to enable the other end of the second limiting block to be inserted into the third limiting hole is further installed on the side wall, close to one end of the second sliding rod, of the second limiting block;

the bottom of the first sliding groove close to one end of the second sliding rod is further provided with a first limiting boss.

Further, carry out spacing barbell spacing subassembly to it when still including the barbell unit not using, the spacing subassembly of barbell includes the rigid coupling is in the couple at barbell bar both ends, and install perpendicular roof beam between the upper and lower crossbeam of mounting bracket homonymy, erect equidistant installing on the roof beam a plurality of with the couple cooperation carries out spacing boss of second to the barbell bar.

Furthermore, the limit switching unit comprises a fourth limit hole, a step hole, a circular ring plate, a second limit bolt, a first handle, a second spring, an L-shaped mounting plate, a second slotting tool and a third limit block;

a plurality of fourth limiting holes are formed in the front upright post at equal intervals, a step hole is formed in the side wall of the first sliding sleeve, a circular ring plate is rotatably arranged in an upper step of the step hole, and one end of the second limiting bolt is inserted into any fourth limiting hole after penetrating through the circular ring plate and the step hole;

the other end of the second limit bolt is fixedly connected with a first handle, a second spring is further sleeved on the second limit bolt between the first handle and the circular ring plate, and two ends of the second spring are fixedly connected to the circular ring plate and the first handle respectively;

one end of an L-shaped mounting plate is fixedly connected to the side wall of the first handle, and a second slotting tool which is matched with the first slotting tool and used for driving the other end of the second limiting block to be inserted into a third limiting hole is further mounted at the other end of the L-shaped mounting plate;

still install a plurality of third stoppers that are used for carrying on spacingly to the ring board on the lateral wall of first sliding sleeve.

The counting and limiting unit comprises an installation box, a first rotating shaft, a second rotating shaft, a first external spline, a synchronizer, a first gear, an annular boss, a second external spline, a second handle, a mark scale, a quantity mark, an annular groove, a clamping ring plate, a limiting groove, a fourth limiting block, a fifth limiting block, a first ratchet wheel, a second gear, a rotating plate and a third spring;

mounting boxes are mounted on the two rear upright columns on the rear side of the mounting frame, and openings are formed in one sides of the mounting boxes close to the counterweight units;

a first rotating shaft and a second rotating shaft which are parallel to each other are rotatably mounted in the mounting box, a first external spline is arranged on the first rotating shaft, the synchronizer is in sliding clamping connection with the first external spline, the first gear is rotatably mounted on the first rotating shaft through a bearing, an annular boss is arranged on one side of the first gear, and a second external spline which can be selectively clamped with the synchronizer is arranged on the annular boss;

one end of the first rotating shaft extends out of the side wall of the installation box and is provided with a second handle, marking scales are arranged on the second handle, and quantity marks matched with the marking scales are arranged on the outer wall of the installation box;

an annular groove is further formed in the outer wall of the synchronizer, and one end of the clamping ring plate is rotatably clamped in the annular groove; the other end of the clamping ring plate is selectively clamped in a plurality of limiting grooves in the top of the mounting box;

a fourth limiting block is further arranged on the outer wall of the first rotating shaft, and a fifth limiting block matched with the fourth limiting block to limit the rotating angle of the first rotating shaft is fixedly connected to the side wall of the installation box;

the rigid coupling has first ratchet in the second pivot, the rigid coupling has the second gear on the outer wall of first ratchet, the second gear with first gear engagement transmission, the one end rigid coupling of rotor plate is in the second pivot, the other end of rotor plate stretches out be located behind the opening of install bin one end the top of counter weight limiting plate, the middle part of rotor plate still passes through third spring coupling with the top of install bin.

Due to the adoption of the technical scheme, the invention has the following advantages:

1. the device of this application can satisfy the demand of multiple training mode, does not need the weight of frequent change barbell both ends counter weight dish in the barbell use, and the training continuity is good, can realize quantitative training and non-quantitative training simultaneously in training process, and training is effectual.

2. This application is squatting deeply, when training such as bench press, the barbell unit is connected with first sliding sleeve, can realize the regulation of barbell unit weight through the weight of adjusting the counter weight unit, it needs training personnel frequently to change the weight disc to have solved in the current barbell use, get and trade the problem that in-process weight disc caused the injury to training personnel because self weight drops easily, do the hand simultaneously at training personnel, the chest, the barbell unit breaks away from with first sliding sleeve when back tensile training, first sliding sleeve can be free adjust in the front on the stand.

3. This application is through adjusting the connected state of synchronous ware with the second external splines, has realized training personnel's ration training and non-ration training, and training effect is good, makes mark scale and different quantity mark correspond through adjusting first pivot simultaneously, realizes the regulation of different training volumes.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.

Drawings

The drawings of the present invention are described below.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial enlarged view of the invention at a in fig. 1.

Fig. 3 is a schematic structural diagram of the counterweight block of the present invention.

Fig. 4 is a schematic structural view of the weight limiting plate of the present invention.

Fig. 5 is a schematic structural view of the first limit bolt of the present invention.

Fig. 6 is a schematic structural view of the barbell of the present invention.

Fig. 7 is a schematic structural diagram of the counting and limiting unit of the present invention.

Fig. 8 is a front sectional view of the count limit unit of the present invention.

Fig. 9 is a top sectional view of the count limit unit of the present invention.

Fig. 10 is a schematic view of the internal structure of the counting and limiting unit according to the present invention.

FIG. 11 is a schematic diagram of a synchronizer according to the present invention.

FIG. 12 is a schematic view of a first ratchet according to the present invention.

Fig. 13 is a partial view of a limit switch unit of the present invention.

FIG. 14 is a schematic structural view of the first runner of the present invention.

Fig. 15 is a schematic structural view of the first slotting tool of the present invention.

Fig. 16 is a schematic structural view of a second slotting cutter according to the present invention.

In the figure: 1-a mounting frame; 2-steel wire; 3-front column; 4-a first sliding sleeve; 5-a first wire guide wheel; 6-U-shaped mounting plate; 7-a second wire guide wheel; 8-a first limiting block; 9-hanging ring; 10-a first slide bar; 11-a counterweight block; 12-counterweight limit plate; 13-a first slide hole; 14-a limiting column; 15-a first limit hole; 16-a second limiting hole; 17-a limiting post via hole; 18-a first limit bolt; 19-a third wire guide wheel; 20-a second slide bar; 21-a second sliding sleeve; 22-a first mounting block; 23-a barbell bar; 24-barbell bar via hole; 25-a counterweight plate; 26-a first chute; 27-a second stopper; 28-a first spring; 29-a first limit boss; 30-a third limiting hole; 31-hanging hook; 32-vertical beams; 33-a second limit boss; 34-a fourth limiting hole; 35-a stepped bore; 36-a circular ring plate; 37-a second limit bolt; 38-a first handle; 39-a second spring; a 40-L shaped mounting plate; 41-a second slotting tool; 42-a third stopper; 43-rear pillar; 44-mounting the case; 45-a first rotating shaft; 46-a second shaft; 47-first external spline; 48-a synchronizer; 49-first gear; 50-an annular boss; 51-a second male spline; 52-a second handle; 53-mark scale; 54-number tag; 55-ring groove; 56-snap ring plate; 57-a limiting groove; 58-a fourth stop block; 59-a fifth limiting block; 60-a first ratchet; 61-a second gear; 62-a rotating plate; 63-a third spring; 64-first slotting cutter.

Detailed Description

The invention is further illustrated by the following figures and examples.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 16, the body-building device capable of switching multiple body-building modes comprises an installation frame 1 and a steel wire 2, wherein two front uprights 3 at the front side of the installation frame 1 are slidably sleeved with a first sliding sleeve 4, a barbell unit capable of sliding up and down is arranged on the installation frame 1, and weight-adjustable counterweight units are arranged on two sides of the installation frame 1;

two ends of the steel wire 2 are guided by a plurality of first guide wheels 5 arranged on the mounting frame 1 and then are respectively connected to the front side wall and the rear side wall of the first sliding sleeve 4 after bypassing the top end of the counterweight unit;

and a limit switching unit which is used for limiting the position of the first sliding sleeve 4 on the front upright post 3 and selectively driving the barbell unit to be connected with the first sliding sleeve 4 is arranged on the side wall of the first sliding sleeve 4.

In the embodiment of the invention, the first sliding sleeve 4 is arranged, and two ends of the steel wire 2 are connected to the first sliding sleeve 4, so that the position of the first sliding sleeve 4 on the front upright post 3 can be conveniently adjusted, meanwhile, the stretching training of hands, chests and backs of body-building personnel can be met, the barbell unit can be arranged to meet the training of deep squat, bench press and the like of the body-building personnel, meanwhile, the connection relation between the barbell unit and the first sliding sleeve 4 is switched through the limit switching unit, when the training of deep squat, bench press and the like is carried out, the barbell unit is connected with the first sliding sleeve 4, the weight of the barbell unit can be adjusted by adjusting the weight of the counterweight unit, the problems that the training personnel need to frequently replace the counterweight disc during the use of the existing barbell, the counterweight disc easily falls off due to the self weight during the replacement, and the training personnel are easily injured due to the self weight are solved, and the hands, the chests and the barbell of the training personnel need to be replaced, During back stretching training, the barbell unit is separated from the first sliding sleeve 4, and the first sliding sleeve 4 can be freely adjusted on the front upright post 3.

As an embodiment of the present invention, a U-shaped mounting plate 6 is installed at the front side of the first sliding sleeve 4, and two second guide rollers 7 are installed at the inner side of the U-shaped mounting plate 6;

the one end of steel wire 2 passes behind two second wire wheels 7 the rigid coupling on first stopper 8, install the link 9 that is used for installing multiple body-building apparatus on the first stopper 8, the other end rigid coupling of steel wire 2 is in on the first sliding sleeve 4 rear side wall.

In the embodiment of the invention, two ends of the steel wire 2 are connected to the front side and the rear side of the first sliding sleeve 4, so that the position of the first sliding sleeve 4 on the front upright post 3 can be conveniently adjusted, and the hanging ring 9 is arranged on the first limiting block 8, so that various auxiliary equipment can be conveniently hung during the stretching training of hands, chests and backs.

As an embodiment of the present invention, the counterweight unit includes a first sliding rod 10, a counterweight 11, a counterweight limiting plate 12, a first sliding hole 13, a limiting post 14, a first limiting hole 15, a second limiting hole 16, a limiting post via hole 17, a first limiting bolt 18, and a third wire guide wheel 19;

the two ends of the first sliding rod 10 are respectively installed between the upper cross beam and the lower cross beam on the same side of the mounting frame 1, a plurality of balancing weights 11 with the same thickness and a plurality of counterweight limiting plates 12 are sequentially overlapped and placed on the lower cross beam of the mounting frame 1, the counterweight limiting plates 12 are positioned on the balancing weights 11, first sliding holes 13 are formed in the balancing weights 11 and the counterweight limiting plates 12, and the first sliding holes 13 are in sliding fit with the first sliding rod 10;

the lower surface of the counterweight limiting plate 12 is provided with a limiting column 14, a plurality of first limiting holes 15 are formed in the limiting column 14 at equal intervals, the interval between the first limiting holes 15 is the same as the thickness of the counterweight block 11, limiting column via holes 17 are formed in the counterweight blocks 11, second limiting holes 16 are formed in the side walls of the counterweight blocks 11, the second limiting holes 16 correspond to the first limiting holes 15 one by one, and the first limiting bolts 18 can be selectively inserted into any one group of corresponding first limiting holes 15 and second limiting holes 16;

a rotatable third wire guide wheel 19 is mounted on the upper surface of the counterweight limiting plate 12, and two ends of the steel wire 2 respectively bypass the third wire guide wheel 19.

In the embodiment of the invention, during training, a trainer can insert the first limiting bolt 18 into any one group of the corresponding first limiting hole 15 and the second limiting hole 16 according to the requirement of the trainer, so that adjustment of different training forces is realized, and the adjustment process is simple and convenient.

As an embodiment of the present invention, the barbell unit includes a second slide bar 20, a second sliding sleeve 21, a first mounting block 22, a barbell bar 23, a barbell bar through hole 24, a weight plate 25, a first sliding slot 26, a second limiting block 27, a first spring 28, a first limiting boss 29, and a third limiting hole 30;

two ends of the second slide bar 20 are respectively installed between the upper and lower beams on the same side of the mounting frame 1, the second slide sleeve 21 is slidably sleeved on the second slide bar 20, one end of the first installation block 22 is fixedly connected to the side wall of the second slide bar 20, a barbell bar through hole 24 is formed in the first installation block 22, the axis of the barbell bar through hole 24 is perpendicular to the axis of the second slide sleeve 21, and a balance weight disc 25 is installed after two ends of the barbell bar 23 respectively penetrate through the barbell bar through holes 24 on two sides;

the other end of the first mounting block 22 is provided with a first sliding chute 26 penetrating through the other side wall thereof, the second limiting block 27 is slidably arranged in the first sliding chute 26, the side wall of the second limiting block 27 close to one end of the second sliding rod 20 is connected with the side wall of the first sliding chute 26 through a first spring 28, and the extension direction of the first spring 28 is the same as the sliding direction of the second limiting block 27;

a third limiting hole 30 matched with the second limiting block 27 is formed in the rear side wall of the first sliding sleeve 4, and a first slotting tool 64 matched with the limiting switching unit to enable the other end of the second limiting block 27 to be inserted into the third limiting hole 30 is further installed on the side wall of the second limiting block 27 close to one end of the second sliding rod 20;

the bottom of the first sliding groove 26 near one end of the second sliding rod 20 is also provided with a first limit boss 29.

In the example of the invention, when the barbell is used, the limit switching unit is driven to contact the first slotting tool 64, the second limit block 27 is driven to be inserted into the third limit hole 30, the connection between the barbell and the first sliding sleeve 4 is realized, when the barbell unit is used for training, the weight of the barbell can be adjusted by adjusting the weight of the unit, the adjustment is convenient and quick, and the problem that the training personnel need to frequently replace the weight disc during the use of the existing barbell and the weight disc is easy to fall off due to the self weight during the replacement process to cause injury to the training personnel is solved.

As an embodiment of the present invention, the barbell bar comprises a barbell limiting assembly for limiting the barbell unit when the barbell unit is not in use, the barbell limiting assembly comprises hooks 31 fixedly connected to two ends of the barbell bar 23, and vertical beams 32 installed between the upper and lower cross beams on the same side of the mounting frame 1, wherein a plurality of second limiting bosses 33 matched with the hooks 31 for limiting the barbell bar are installed on the vertical beams 32 at equal intervals.

In the embodiment of the invention, when the barbell is not used, the hooks 31 on both sides are hung on a group of corresponding second limiting bosses 33 on both sides, so that the barbell is limited.

As an embodiment of the present invention, the limit switching unit includes a fourth limit hole 34, a stepped hole 35, a circular plate 36, a second limit bolt 37, a first handle 38, a second spring 39, an L-shaped mounting plate 40, a second slotting tool 41, and a third limit block 42;

a plurality of fourth limiting holes 34 are formed in the front upright post 3 at equal intervals, a step hole 35 is formed in the side wall of the first sliding sleeve 4, a circular ring plate 36 is rotatably arranged in an upper step of the step hole 35, and one end of a second limiting bolt 37 is inserted into any one of the fourth limiting holes 34 after being perforated with the circular ring plate 36 and the step hole 35;

a first handle 38 is fixedly connected to the other end of the second limiting bolt 37, a second spring 39 is further sleeved on the second limiting bolt 37 between the first handle 38 and the circular ring plate 36, and two ends of the second spring 39 are fixedly connected to the circular ring plate 36 and the first handle 38 respectively;

one end of an L-shaped mounting plate 40 is further fixedly connected to the side wall of the first handle 38, and a second slotting tool 41 which is matched with the first slotting tool 64 and used for driving the other end of the second limiting block 27 to be inserted into the third limiting hole 30 is further mounted at the other end of the L-shaped mounting plate 40;

and a plurality of third limiting blocks 42 for limiting the circular ring plate 36 are further installed on the side wall of the first sliding sleeve 4.

In the present embodiment, when performing the stretching exercise of the hand, chest and back, the first slotting tool 64 is located on the side of the first sliding sleeve 4 far away from the barbell unit, the second limit bolt 37 is adjusted to be inserted into the fourth limit holes 34 with different heights, so that the use of trainers with different heights is met, when training such as deep squat and bench press is needed, the second limiting bolt 37 is rotated to make the front end of the first slotting tool 64 contact with the front end of the second slotting tool 41, the first slotting tool 64 drives the second slotting tool 41 and the second limiting block 27 to slide, the second limiting block 27 is inserted into the third limiting hole 30, the connection between the barbell unit and the first sliding sleeve 4 is realized, meanwhile, the top end of the L-shaped mounting plate 40 is limited by the first limit boss 29, when the barbell unit is connected with the first sliding sleeve 4, the second limit bolt 37 is not inserted into the fourth limit hole 34, and the barbell and the first sliding sleeve 4 can freely slide up and down.

As an embodiment of the present invention, the exercise device further comprises a counting and limiting unit for counting and limiting the number of exercise motions, wherein the counting and limiting unit comprises an installation box 44, a first rotating shaft 45, a second rotating shaft 46, a first external spline 47, a synchronizer 48, a first gear 49, an annular boss 50, a second external spline 51, a second handle 52, a mark scale 53, a number mark 54, an annular groove 55, a snap ring plate 56, a limiting groove 57, a fourth limiting block 58, a fifth limiting block 59, a first ratchet 60, a second gear 61, a rotating plate 62, and a third spring 63;

mounting boxes 44 are mounted on the two rear upright posts 43 at the rear side of the mounting rack 1, and one side of each mounting box 44 close to the counterweight unit is provided with an opening;

a first rotating shaft 45 and a second rotating shaft 46 which are parallel to each other are rotatably mounted in the mounting box 44, a first external spline 47 is arranged on the first rotating shaft 45, the synchronizer 48 is slidably clamped on the first external spline 47, the first gear 49 is rotatably mounted on the first rotating shaft 45 through a bearing, an annular boss 50 is arranged on one side of the first gear 49, and a second external spline 51 which can be selectively clamped with the synchronizer 48 is arranged on the annular boss 50;

one end of the first rotating shaft 45 extends out of the side wall of the installation box 44 and is provided with a second handle 52, the second handle 52 is provided with a marked scale 53, and the outer wall of the installation box 44 is provided with a number mark 54 matched with the marked scale 53;

an annular groove 55 is further formed in the outer wall of the synchronizer 48, and one end of the snap ring plate 56 is rotationally snapped in the annular groove 55; the other end of the snap ring plate 56 is selectively snapped in a plurality of limiting grooves 57 at the top of the mounting box 44;

a fourth limiting block 58 is further arranged on the outer wall of the first rotating shaft 45, and a fifth limiting block 59 which is matched with the fourth limiting block 58 to limit the rotating angle of the first rotating shaft 45 is fixedly connected to the side wall of the installation box 44;

the rigid coupling has first ratchet 60 on the second pivot 46, the rigid coupling has second gear 61 on the outer wall of first ratchet 60, second gear 61 with first gear 49 meshes the transmission, the one end rigid coupling of rotor plate 62 is in on the second pivot 46, the other end of rotor plate 62 stretches out be located behind the opening of install bin 44 one end the top of counter weight limiting plate 12, the middle part of rotor plate 62 still is connected through third spring 63 with the top of install bin 44.

In the present embodiment, when the trainee does not perform a training in a variable amount, the synchronizer 48 is not engaged with the second male spline 51, and when the first gear 49 rotates, the first rotating shaft 45 does not rotate; when the trainee needs to carry out quantitative training, the first rotating shaft 49 is rotated to enable the marked scales 53 to be aligned with the corresponding quantity marks 54, and then the synchronizer 48 is pushed to be clamped with the second external spline 51 through the clamping ring plate 56; during training, the counterweight limiting plate 12 slides upwards to drive the rotating plate 62 to rotate, the first ratchet wheel 60 on the rotating plate 62 is locked to drive the second gear 61 to rotate, the second gear 61 drives the first gear 49 to rotate, the first rotating shaft 45 rotates along with the first gear 49, the front end of the rotating plate 62 is separated from the counterweight limiting plate 12 after rotating for a certain angle, the rotating plate 62 is reset under the action of the third spring 63, in the resetting process, the first ratchet wheel 60 is in an unlocked state, and the second gear 61 does not rotate along with the second rotating shaft 46; every time the counterweight limiting plate 12 moves up and down, the marking scale 53 rotates by one scale to represent one training, when the marking scale 53 returns to the initial position, the fourth limiting block 58 is in contact with the fifth limiting block 59, the first gear 49, the second gear 61 and the rotating plate 62 cannot rotate, the upward counterweight limiting plate 12 is limited, a trainer does not need to calculate in the training process, and the quantitative training of the trainer is realized.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.

Claims

1. The fitness device capable of switching multiple fitness modes is characterized by comprising an installation rack (1) and a steel wire (2), wherein two front upright posts (3) on the front side of the installation rack (1) are sleeved with a first sliding sleeve (4) in a sliding manner, a barbell unit capable of sliding up and down is arranged on the installation rack (1), and weight-adjustable counterweight units are arranged on two sides of the installation rack (1);

two ends of the steel wire (2) are guided by a plurality of first wire guide wheels (5) arranged on the mounting frame (1) and then are respectively connected to the front side wall and the rear side wall of the first sliding sleeve (4) after bypassing the top end of the counterweight unit;

and a limiting switching unit which is used for limiting the position of the first sliding sleeve (4) on the front upright post (3) and selectively driving the barbell unit to be connected with the first sliding sleeve (4) is arranged on the side wall of the first sliding sleeve (4).

2. The exercise device capable of switching between a plurality of exercise modes according to claim 1, wherein a U-shaped mounting plate (6) is mounted on the front side of the first sliding sleeve (4), and two second guide rollers (7) are mounted on the inner side of the U-shaped mounting plate (6);

the one end of steel wire (2) passes behind two second wire wheels (7) the rigid coupling on first stopper (8), install link (9) that are used for installing multiple body-building apparatus on first stopper (8), the other end rigid coupling of steel wire (2) is in on the lateral wall behind first sliding sleeve (4).

3. The exercise device switchable between a plurality of exercise modes according to claim 1, wherein the counterweight unit comprises a first sliding rod (10), a counterweight block (11), a counterweight limiting plate (12), a first sliding hole (13), a limiting post (14), a first limiting hole (15), a second limiting hole (16), a limiting post via hole (17), a first limiting bolt (18), and a third wire guide wheel (19);

the two ends of the first sliding rod (10) are respectively installed between the upper cross beam and the lower cross beam on the same side of the mounting frame (1), a plurality of balancing weights (11) with the same thickness and counterweight limiting plates (12) are sequentially overlapped and placed on the lower cross beam of the mounting frame (1), the counterweight limiting plates (12) are located on the balancing weights (11), first sliding holes (13) are formed in the balancing weights (11) and the counterweight limiting plates (12), and the first sliding holes (13) are in sliding fit with the first sliding rods (10);

the lower surface of the counterweight limiting plate (12) is provided with limiting columns (14), a plurality of first limiting holes (15) are formed in the limiting columns (14) at equal intervals, the intervals between the first limiting holes (15) are the same as the thickness of the counterweight blocks (11), limiting column via holes (17) are formed in the counterweight blocks (11), second limiting holes (16) are formed in the side walls of the counterweight blocks (11), the second limiting holes (16) correspond to the first limiting holes (15) one by one, and the first limiting bolts (18) can be selectively inserted into any one group of corresponding first limiting holes (15) and second limiting holes (16);

the upper surface mounting of counter weight limiting plate (12) has rotatable third wire wheel (19), the both ends of steel wire (2) are walked around respectively third wire wheel (19).

4. The exercise device switchable between a plurality of exercise modes according to claim 1, wherein the barbell unit comprises a second sliding bar (20), a second sliding sleeve (21), a first mounting block (22), a barbell rod (23), a barbell rod through hole (24), a weight plate (25), a first sliding groove (26), a second limiting block (27), a first spring (28), a first limiting boss (29), and a third limiting hole (30);

the two ends of the second sliding rod (20) are respectively installed between the upper cross beam and the lower cross beam on the same side of the installation frame (1), the second sliding sleeve (21) is sleeved on the second sliding rod (20) in a sliding mode, one end of the first installation block (22) is fixedly connected to the side wall of the second sliding rod (20), a barbell rod through hole (24) is formed in the first installation block (22), the axis of the barbell rod through hole (24) is perpendicular to the axis of the second sliding sleeve (21), and the two ends of the barbell rod (23) respectively penetrate through the barbell rod through holes (24) on the two sides and then are provided with a balance weight disc (25);

the other end of each first mounting block (22) is provided with a first sliding groove (26) penetrating through the other side wall of the first mounting block, each second limiting block (27) is arranged in the corresponding first sliding groove (26) in a sliding mode, the side wall, close to one end of each second sliding rod (20), of each second limiting block (27) is connected with the side wall of the corresponding first sliding groove (26) through a first spring (28), and the telescopic direction of each first spring (28) is the same as the sliding direction of the corresponding second limiting block (27);

a third limiting hole (30) matched with the second limiting block (27) is formed in the rear side wall of the first sliding sleeve (4), and a first slotting tool (64) matched with the limiting switching unit to enable the other end of the second limiting block (27) to be inserted into the third limiting hole (30) is further installed on the side wall, close to one end of the second sliding rod (20), of the second limiting block (27);

and a first limiting boss (29) is further mounted at the bottom of one end, close to the second sliding rod (20), of the first sliding groove (26).

5. The exercise device capable of switching between multiple exercise modes according to claim 4, further comprising a barbell limiting assembly for limiting the barbell unit when not in use, wherein the barbell limiting assembly comprises hooks (31) fixedly connected to two ends of the barbell bar (23), and vertical beams (32) installed between the upper and lower cross beams on the same side of the mounting frame (1), and a plurality of second limiting bosses (33) matched with the hooks (31) for limiting the barbell bar are installed on the vertical beams (32) at equal intervals.

6. The exercise device capable of switching between a plurality of exercise modes according to claim 4, wherein the limit switching unit comprises a fourth limit hole (34), a stepped hole (35), a circular ring plate (36), a second limit bolt (37), a first handle (38), a second spring (39), an L-shaped mounting plate (40), a second slotting tool (41) and a third limit block (42);

a plurality of fourth limiting holes (34) are formed in the front upright post (3) at equal intervals, a step hole (35) is formed in the side wall of the first sliding sleeve (4), a circular ring plate (36) is rotatably arranged in the upper step of the step hole (35), and one end of a second limiting bolt (37) is inserted into any fourth limiting hole (34) after being perforated by the circular ring plate (36) and the step hole (35);

a first handle (38) is fixedly connected to the other end of the second limiting bolt (37), a second spring (39) is further sleeved on the second limiting bolt (37) between the first handle (38) and the circular ring plate (36), and two ends of the second spring (39) are fixedly connected to the circular ring plate (36) and the first handle (38) respectively;

one end of an L-shaped mounting plate (40) is fixedly connected to the side wall of the first handle (38), and a second slotting tool (41) which is matched with the first slotting tool (64) and used for driving the other end of the second limiting block (27) to be inserted into the third limiting hole (30) is further mounted at the other end of the L-shaped mounting plate (40);

and the side wall of the first sliding sleeve (4) is also provided with a plurality of third limiting blocks (42) for limiting the circular ring plate (36).

7. The exercise device capable of switching multiple exercise modes according to claim 3, further comprising a counting and limiting unit for counting and limiting the number of exercise motions, wherein the counting and limiting unit comprises a mounting box (44), a first rotating shaft (45), a second rotating shaft (46), a first external spline (47), a synchronizer (48), a first gear (49), an annular boss (50), a second external spline (51), a second handle (52), a marking scale (53), a number mark (54), an annular groove (55), a snap ring plate (56), a limiting groove (57), a fourth limiting block (58), a fifth limiting block (59), a first ratchet wheel (60), a second gear (61), a rotating plate (62) and a third spring (63);

mounting boxes (44) are mounted on the two rear upright columns (43) on the rear side of the mounting frame (1), and one side, close to the counterweight unit, of each mounting box (44) is provided with an opening;

a first rotating shaft (45) and a second rotating shaft (46) which are parallel to each other are rotatably mounted in the mounting box (44), a first external spline (47) is arranged on the first rotating shaft (45), the synchronizer (48) is slidably clamped on the first external spline (47), the first gear (49) is rotatably mounted on the first rotating shaft (45) through a bearing, an annular boss (50) is arranged on one side of the first gear (49), and a second external spline (51) which can be selectively clamped with the synchronizer (48) is arranged on the annular boss (50);

one end of the first rotating shaft (45) extends out of the side wall of the installation box (44) and then is provided with a second handle (52), the second handle (52) is provided with a marking scale (53), and the outer wall of the installation box (44) is provided with quantity marks (54) matched with the marking scale (53);

an annular groove (55) is further formed in the outer wall of the synchronizer (48), and one end of the clamping ring plate (56) is rotatably clamped in the annular groove (55); the other end of the clamping ring plate (56) is selectively clamped in a plurality of limiting grooves (57) at the top of the mounting box (44);

a fourth limiting block (58) is further arranged on the outer wall of the first rotating shaft (45), and a fifth limiting block (59) matched with the fourth limiting block (58) to limit the rotating angle of the first rotating shaft (45) is fixedly connected to the side wall of the installation box (44);

the rigid coupling has first ratchet (60) on second pivot (46), the rigid coupling has second gear (61) on the outer wall of first ratchet (60), second gear (61) with first gear (49) meshing transmission, the one end rigid coupling of rotor plate (62) is in on second pivot (46), the other end of rotor plate (62) stretches out be located behind the opening of install bin (44) one end the top of counter weight limiting plate (12), the middle part of rotor plate (62) still is connected through third spring (63) with the top of install bin (44).