CN219743789U - Stay wire type training device - Google Patents

Abstract

The utility model relates to the technical field of body-building sports equipment, in particular to a stay wire type training device. The novel wire winding device comprises a chassis and a rack arranged on the chassis, wherein support arms are respectively arranged on the side walls of the left side and the right side of the rack, the chassis comprises an upper bottom plate and a lower bottom plate which are arranged in parallel, the lower bottom plate is connected with the upper bottom plate through support columns arranged at four corners of the lower bottom plate, a resistance motor in the chassis is arranged in the chassis through a motor support, a wire winding disc is arranged on one side of the resistance motor, a first tension rope is wound on the wire winding disc, and wire passing holes are formed in the upper bottom plate corresponding to the position of the wire winding disc. The novel resistance source has the advantages of reasonable structural design, convenience in operation, portability, convenience in movement and strong controllability, is particularly suitable for environments in small spaces such as families, and the size of the resistance source cannot be reduced due to the increase of time, and does not need frequent replacement of parts, so that a trainer can throw more energy into training, the body-building effect of the trainer is improved, and the problems in the prior art are solved.

Description

Stay wire type training device

Technical Field

The utility model relates to the technical field of body-building sports equipment, in particular to a stay wire type training device.

Background

Exercise equipment is an auxiliary tool for helping a trainer to exercise, particularly in gymnasiums, such as a bird trainer, for example, a pull-wire type multifunctional exercise equipment with a patent publication number of CN217067525U, which has the defects of large dead weight, difficulty in moving and large space requirement for placing, is suitable for gymnasiums, but is not suitable for common families. The exercise machine used in the home has higher requirements on mobility, operability and portability, but the existing chest expander has larger dead weight mainly because of adopting a balancing weight mode, and cannot be avoided. There are chest-expander that relies on friction to produce resistance, and this kind of chest-expander can solve the problem of dead weight, but, the loss to friction parts is comparatively serious to along with taking exercise, resistance can be constantly reduced because of coefficient of friction reduces, seriously influences the effect of training body-building, needs the periodic replacement part to carry out the apparatus maintenance, wastes time and energy. In addition, most of the two types of chest tensioners adopt a fixed mode, and most of supporting legs of the chest tensioners are fixed, so that the chest tensioners occupy the indoor floor area, are easy to collide with, are not beneficial to cleaning the floor, and are easy to collect dirt. Obviously, the chest expander cannot meet the household use requirements of the trainers.

Disclosure of Invention

The utility model provides a pull-wire type trainer, which is reasonable in structural design, convenient to operate, light in weight, convenient to move and high in controllability, is particularly suitable for environments with small spaces such as families, the size of a resistance source cannot be reduced due to the increase of time, and a trainer can put more effort into training without frequent replacement of parts, so that the body-building effect of the trainer is improved, the supporting legs of the trainer are movably connected, and can be adjusted according to the indoor ground condition when the trainer is used, so that the applicability of the tensioner is improved, the storage is convenient, the cleaning and sweeping of the ground at home are facilitated while the integral stability of the tensioner is ensured, the collision caused by the supporting legs is effectively prevented, the dirty space is reduced, and the problems in the prior art are solved.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides a guy type training device, includes the chassis and sets up the frame on the chassis, is equipped with the support arm respectively on the lateral wall of frame left and right sides, the chassis includes upper plate and lower plate of parallel arrangement, and the lower plate links to each other with the upper plate through the support column that sets up in its four angles, resistance motor in the chassis, resistance motor passes through the motor support setting in the chassis, is equipped with the wire reel in resistance motor one side, winds up first pulling force rope on the wire reel, sets up the wire hole on the upper plate that corresponds the wire reel position, is equipped with the movable pulley group in the frame, the free end of first pulling force rope upwards passes the wire hole to link to each other with the upper plate after bypassing the movable pulley group, be equipped with in the frame with the matched with stay wire subassembly of movable pulley group; support members are movably sleeved on the support columns, movable plates are symmetrically and horizontally arranged on the left side and the right side of the lower base plate respectively, each movable plate is connected with the upper base plate through a plurality of connecting columns arranged on the surfaces of the movable plates, and universal wheels are respectively arranged at the front end and the rear end of the bottom of each movable plate.

Optionally, the driving wheel group includes the splint of fore-and-aft symmetry setting, and two splint link to each other through linking the board, are equipped with down the pulley between two splint of lower part, the axle head of lower pulley links to each other with the splint of corresponding one side respectively, lower pulley is walked around to the free end of first pulling force rope and is linked to each other with the upper plate, is equipped with two upper pulleys side by side between two splint of lower pulley top, and the axle head of two upper pulleys that coaxial axial lead direction set up links to each other with the splint of corresponding one side respectively.

Optionally, the pull wire assembly comprises three fixed pulleys sequentially arranged at the inner top of the frame from left to right, a second pull rope is arranged in the frame, the second pull rope bypasses the middle fixed pulley, the free end of the left side of the second pull rope downwards bypasses the upper pulley at the front side of the driven wheel group, upwards bypasses the fixed pulley at the right side, and then penetrates into the support arm at the right side and outwards extends; the free end of the right side of the fixed pulley is downward and the right side of the driven pulley group bypasses the upper pulley at the rear side, and then upwards bypasses the fixed pulley at the left side, penetrates into the support arm at the left side and extends out.

Optionally, a limiting plate is vertically arranged in the underframe, the upper end and the lower end of the limiting plate are respectively fixedly connected to the upper side and the lower side of the underframe, and a limiting hole movably clamped on the wire spool is formed in the limiting plate.

Optionally, the resistance motor is an outer rotor motor, wherein a shaft is connected with the motor bracket, and the wire spool is arranged on a shell of the resistance motor and is arranged in the direction of the coaxial line of the outer rotor.

Optionally, the support piece includes the supporting leg, is equipped with the sleeve pipe that the activity cup jointed on corresponding support column at the inner of supporting leg, is equipped with the sucking disc at the outer end bottom of supporting leg, is equipped with the axle sleeve of joint on corresponding support column in the sleeve pipe, is equipped with the strengthening rib that links to each other with the sleeve pipe respectively in the inner both sides of supporting leg.

Optionally, the drain pan of sucking disc, cushion set up in the bottom of supporting leg, the spanner setting of sucking disc is at the surface of supporting leg.

Optionally, each supporting arm is connected with the rack through an adjusting mechanism, the adjusting mechanism comprises a fixing plate vertically arranged in the rack and connecting plates arranged at the left side and the right side of the fixing plate, a supporting plate parallel to the fixing plate is arranged at the rear side of the fixing plate, the supporting plate is connected with the fixing plate through a supporting piece arranged at the four corners of the supporting plate, the supporting piece comprises a stand column arranged on the rear side wall of the fixing plate, a threaded rod movably penetrating through the supporting plate is arranged at the center of the outer end of the stand column, a locking nut matched with the threaded rod is arranged on the rear side wall of the supporting plate, a cylinder is arranged at the center of the side wall of the supporting plate at one side of the fixing plate, a tooth slot is arranged at the center of the side wall of the front end of the cylinder at one side of the fixing plate, a conduit vertically penetrating through the supporting plate is arranged at the rear end of the conduit, a pulley is movably clamped in the conduit between the clamping slots through a rotating shaft, and the upper end of the pulley extends upwards; the connecting piece that links to each other with the support arm is equipped with in the fixed plate front side, the connecting piece includes the mounting panel, is equipped with the joint pipe that passes the fixed plate perpendicularly at mounting panel back lateral wall central authorities, joint pipe and the coaxial heart line direction setting of conduit, the joint pipe lateral wall cover of fixed plate rear side is equipped with the gear with tooth's socket matched with, is equipped with the stand pipe of cup jointing on joint pipe on the fixed plate front side wall, the stand lateral wall is outwards worn out to the stand pipe, after the fixed pulley of left and right sides was walked around to the free end of second pulling rope, in stretching into the conduit through the pulley, pass conduit, cylindrical tooth's socket, joint pipe and pass the support arm in proper order and link to each other with the handle.

Optionally, the cross section of the frame is isosceles trapezoid.

Optionally, the resistance motor is an outer rotor motor, wherein a shaft is connected with the motor bracket, and the wire spool is arranged on a shell of the resistance motor and is arranged in the direction of the coaxial line of the outer rotor.

The utility model adopts the technical proposal and has the advantages that: the utility model has the advantages of structural design is reasonable, convenient operation, have light, be convenient for remove, the controllability is strong, be particularly useful for the environment in little space such as family, and the size of resistance source can not reduce because of the growth of time, need not frequent change part, make the training person throw into more energy in the training, thereby improve the body-building effect of training person, its supporting leg adopts movable connection, not only can adjust the supporting leg according to indoor ground condition when using, when guaranteeing chest expander overall stability, improved its suitability, still be convenient for accomodate, the clean space of cleaning in convenient house that prevents effectively that the supporting leg from causing from colliding with, reduce the dirty space of holding. The support arm adopts the mode of multi-angle adjustable, can satisfy the demand of different trainees or different body-building positions, adjusts the inclination of support arm, even fine setting, and whole adjustment process is simple and convenient quick, labour saving and time saving.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic top view of FIG. 1;

FIG. 3 is a schematic view of the cross-sectional structure of A-A of FIG. 2;

FIG. 4 is a schematic perspective view of a chassis and a support;

FIG. 5 is a schematic perspective view of the support received within the chassis;

FIG. 6 is a schematic perspective view of a support;

FIG. 7 is a schematic perspective view of a resistance motor, a wire spool, a motor bracket, and a limiting plate;

FIG. 8 is a schematic perspective view of a wheelset;

FIG. 9 is a schematic perspective view of the adjustment mechanism coupled to the arm;

FIG. 10 is a schematic perspective view of an adjustment mechanism;

FIG. 11 is a schematic top view of FIG. 10;

FIG. 12 is a schematic view of the cross-sectional structure B-B of FIG. 11;

fig. 13 is a schematic perspective view of a cylinder, conduit, pulley;

FIG. 14 is a schematic perspective view of a mounting plate, bayonet, gear;

in the figure, 1, a chassis; 101. an upper base plate; 102. a lower base plate; 103. a support column; 2. a frame; 3. a support arm; 4. a resistance motor; 5. a motor bracket; 6. a wire spool; 7. a first tensile cord; 8. a wire through hole; 9. a moving wheel group; 901. a clamping plate; 902. a connecting plate; 903. a lower pulley; 904. an upper pulley; 10. a support; 1001. support legs; 1002. a sleeve; 1003. a suction cup; 10031. a bottom case; 10032. rubber cushion; 10033. a wrench; 1004. a shaft sleeve; 1005. reinforcing ribs; 11. a moving plate; 12. a connecting column; 13. a universal wheel; 14. a fixed pulley; 15. a second tensile cord; 16. a limiting plate; 17. a limiting hole; 18. a fixing plate; 19. a connecting plate; 20. a support plate; 21. a column; 22. a threaded rod; 23. a lock nut; 24. a cylinder; 25. tooth slots; 26. a conduit; 27. a clamping groove; 28. a pulley; 29. a mounting plate; 30. a clamping pipe; 31. a gear; 32. a guide tube; 33. a handle.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1-14, in this embodiment, a pull-wire trainer includes a chassis 1 and a frame 2 disposed on the chassis 1, wherein the side walls on the left and right sides of the frame 2 are respectively provided with a support arm 3, the chassis 1 includes an upper bottom plate 101 and a lower bottom plate 102 disposed in parallel, the lower bottom plate 102 is connected with the upper bottom plate 101 through support columns 103 disposed at four corners thereof, a resistance motor 4 in the chassis 1 is disposed in the chassis 1 through a motor bracket 5, a wire spool 6 is disposed on one side of the resistance motor 4, a first pull rope 7 is wound on the wire spool 6, a wire passing hole 8 is disposed on the upper bottom plate 101 corresponding to the position of the wire spool 6, a moving wheel set 9 is disposed in the frame 2, a free end of the first pull rope 7 passes through the wire passing hole 8 upwards and is connected with the upper bottom plate 101 after bypassing the moving wheel set 9, and a pull wire assembly matched with the moving wheel set 9 is disposed in the frame 2; the support members 10 are movably sleeved on the support columns 103, the movable plates 11 are symmetrically and horizontally arranged on the left side and the right side of the lower base plate 102, the movable plates 11 are respectively connected with the upper base plate 101 through a plurality of connecting columns 12 arranged on the surfaces of the movable plates, and universal wheels 13 are respectively arranged at the front end and the rear end of the bottom of each movable plate 11.

Optionally, the driving wheel set 9 includes clamping plates 901 symmetrically arranged around, the two clamping plates 901 are connected through a connecting plate 902, a lower pulley 903 is arranged between the two clamping plates 901 at the lower part, the shaft ends of the lower pulley 903 are respectively connected with the clamping plates 901 at the corresponding side, the free end of the first tension rope 7 bypasses the lower pulley 903 to be connected with the upper bottom plate 101, two upper pulleys 904 are arranged between the two clamping plates 901 above the lower pulley 903 side by side, and the shaft ends of the two upper pulleys 904 arranged in the direction of the coaxial line are respectively connected with the clamping plates 901 at the corresponding side.

Optionally, the pull wire assembly comprises three fixed pulleys 14 sequentially arranged at the inner top of the frame 2 from left to right, a second pull rope 15 is arranged in the frame 2, the second pull rope 15 bypasses the fixed pulley 14 in the middle, the free end at the left side of the second pull rope bypasses the upper pulley 904 at the front side downwards and bypasses the left side of the driven pulley group 9, and then penetrates into the support arm 3 at the right side and extends outwards after bypassing the fixed pulley 14 at the right side upwards; the free end of the right side of the fixed pulley passes downwards and the right side of the driven pulley group 9 around the upper pulley 904 at the rear side, passes upwards around the fixed pulley 14 at the left side, penetrates into the support arm 3 at the left side and extends outwards.

Optionally, a limiting plate 16 is vertically arranged in the chassis 1, the upper end and the lower end of the limiting plate 16 are respectively fixedly connected to the upper side and the lower side of the chassis 1, and a limiting hole 17 movably clamped on the wire spool 6 is formed in the limiting plate 16. On the one hand, the wire spool 6 is limited through the limiting hole 17 of the limiting plate 16, so that radial rotation of the wire spool 6 is further guaranteed, and on the other hand, the first tension rope 7 can be prevented from being wound on the central shaft of the resistance motor 4 through the limiting plate 16, and normal use of the resistance motor 4 is guaranteed.

Optionally, the resistance motor 4 is an outer rotor motor, wherein a shaft is connected with the motor bracket 5, and the wire spool 6 is arranged on the shell of the resistance motor 4 and is arranged in the direction of the coaxial line of the outer rotor.

Optionally, the support 10 includes a support leg 1001, a sleeve 1002 movably sleeved on the corresponding support column 103 is disposed at an inner end of the support leg 1001, a suction cup 1003 is disposed at a bottom of an outer end of the support leg 1001, a sleeve 1004 is disposed in the sleeve 1002 and is clamped on the corresponding support column 103, and reinforcing ribs 1005 connected to the sleeve 1002 are disposed at two sides of the inner end of the support leg 1001.

Optionally, the bottom shell 10031 and the rubber pad 10032 of the suction cup 1003 are arranged at the bottom of the supporting leg 1001, and the wrench 10033 of the suction cup 1003 is arranged on the surface of the supporting leg.

Optionally, each support arm 3 is connected with the frame 2 through an adjusting mechanism, the adjusting mechanism comprises a fixing plate 18 vertically arranged in the frame 2 and connecting plates 19 arranged at the left side and the right side of the fixing plate 18, a support plate 20 which is arranged in parallel with the fixing plate 18 is arranged at the rear side of the fixing plate 18, the support plate 20 is connected with the fixing plate 18 through a support piece arranged at the four corners of the support plate, the support piece comprises a stand column 21 arranged on the rear side wall of the fixing plate 18, a threaded rod 22 which movably penetrates through the support plate 20 is arranged at the center of the outer end of the stand column 21, a locking nut 23 matched with the threaded rod 22 is arranged on the rear side wall of the support plate 20, a cylinder 24 is arranged at the center of the side wall of the support plate 20 at the side towards the fixing plate 18, a tooth socket 25 is arranged at the center of the front end of the side wall of the cylinder 24 at the side towards the fixing plate 18, a wire tube 26 which vertically penetrates through the support plate 20 is arranged at the rear end of the cylinder 24, a clamping groove 27 is vertically arranged at the rear end of the wire tube 26, a pulley 28 is movably clamped in the wire tube 26 between the clamping grooves 27 through a rotating shaft, and the upper end of the pulley 28 extends upwards; the front side of the fixing plate 18 is provided with a connecting piece connected with the support arm 3, the connecting piece comprises a mounting plate 29, the center of the rear side wall of the mounting plate 29 is provided with a clamping tube 30 which vertically penetrates through the fixing plate 18, the clamping tube 30 and the conduit 26 are arranged in the direction of the coaxial line, the side wall of the clamping tube 30 at the rear side of the fixing plate 18 is sleeved with a gear 31 matched with the tooth slot 25, the front side wall of the fixing plate 18 is provided with a guide tube 32 sleeved on the clamping tube 30, the guide tube 32 outwards penetrates out of the side wall of the frame 2, the free end of the second tension rope 15 extends into the conduit 26 through a pulley 28 after bypassing the fixed pulleys 14 at the left side and the right side, and sequentially penetrates through the conduit 26, the tooth slot 25 of the cylinder 24, the clamping tube 30 and the support arm 3 to be connected with a handle 33.

The fixing plate 18 can be arranged between two vertical beams on the same side in the casing 2, and is connected with the vertical beams through connecting plates 19 on two sides of the fixing plate 18, when the second tension rope 15 is connected, the second tension rope 15 needs to be pulled out from the fixed pulley 14 on the corresponding side and is wound around and clamped into the pulley 28, the free end of the second tension rope 15 sequentially passes through the conduit 26 and the tooth groove 25 of the cylinder 24 and stretches into the clamping tube 30, and finally, the second tension rope passes through the mounting plate 29 and then enters the support arm 3 to be connected with the handle 33. When the inclination angle of the support arm 3 needs to be adjusted, a trainer can grasp the inner end of the support arm 3 by hand and pull the support arm 3 by outward force, and the support arm 3 drives the clamping pipe 30 to move outwards through the mounting plate 29, so that the gear 31 originally meshed in the tooth groove 25 of the cylinder 24 is separated from the clamping pipe. At this time, the trainer can rotate the support arm 3 according to the needs of the trainer, and the support arm 3 radially rotates along the axial line direction of the clamping tube 30. After the position is adjusted, the support arm 3 is pushed again, so that the gear 31 at the inner end of the clamping tube 30 is meshed in the tooth groove 25 again, and the support arm 3 is locked, so that the position of the support arm is fixed. The requirements of different trainers or different body-building parts can be met, the inclination angle of the support arm is adjusted, even fine adjustment is carried out, the whole adjusting process is simple, convenient and quick, time and labor are saved, the requirements of the trainers can be met, and time and labor are saved.

Optionally, the cross section of the frame 2 is isosceles trapezoid. The frame 2 is in isosceles trapezoid shape, so that the two support arms 3 can not only adjust the height in the rotating process, but also adjust the opening angle of the two support arms 3, and the device is especially suitable for training when pulling the two handles 33, thereby further improving the comfort in the training process.

Optionally, the resistance motor 4 is an outer rotor motor, wherein a shaft is connected with the motor bracket 5, and the wire spool 6 is arranged on the shell of the resistance motor 4 and is arranged in the direction of the coaxial line of the outer rotor.

When the chest expander needs to be placed on one side in a room, the device can be used for breaking the wrenches 10033 on the suckers 1003, so that air enters the rubber pads 10032 of the suckers 1003, and the rubber pads 10032 are separated from the ground. The support leg 1001 is then pulled by hand, causing the support leg 1001 to move upward along the corresponding support column 103, and then the support leg 1001 is rotated radially in the direction of the sleeve 1002, causing the support leg 1001 to be received between the upper and lower base plates 101 and 102. The other three support legs 1001 are then sequentially stored as described above. At this time, each universal wheel 13 contacts with the ground, and a trainer can move the chest expander by pushing the chest expander, so that the operability of the chest expander is greatly improved.

When the chest expander is required to be used, the chest expander is pushed to move to a proper indoor position. Then, each support leg 1001 is moved out from between the upper plate 101 and the lower plate 102, and the rotational position of the support leg 1001 is adjusted according to the position of other articles on the floor surface in the room. After the positions are determined, the sleeves 1002 on the supporting legs 1001 are moved downwards, the bottoms of the sleeves 1002 are contacted with the surface of the lower bottom plate 102 by stepping on the supporting legs 1001, at the moment, the bottoms of the suckers 1003 at the outer ends of the supporting legs 1001 are contacted with the ground, and the wrenches 10033 are broken off, so that the rubber pads 10032 of the suckers 1003 are fully adsorbed on the tiles on the ground. After all the supporting legs 1001 are fixed firmly through the suckers 1003, the positions of the chest expander can be fixed easily and remain unchanged. The supporting leg 1001 adopts movable connection, not only can adjust the supporting leg according to indoor ground condition when using, when guaranteeing chest expander overall stability, has improved its suitability, still is convenient for accomodate, makes things convenient for the clean of ground at home to clean, effectively prevents the bump that the supporting leg caused, reduces the space of hiding the dirty.

When two hands are trained, a trainer can pull the handles 33 on the two support arms 3 at the same time, the two handles 33 pull the two ends of the second tension rope 15 to extend outwards respectively, then the movable pulley group 9 is pulled to move upwards in the frame 2 through the fixed pulleys 14 on the left side and the right side, and as the movable pulley group 9 moves, the free end of the first tension rope 7 is fixed on the upper base plate 101, so that only the first tension rope 7 wound on the wire reel 6 can be pulled outwards, and as the wire reel 6 rotates, the outer rotor of the resistance motor 4 is driven to rotate, and the outer rotor rotates along the central shaft of the resistance motor 4, so that a resistance source of the chest expander is formed. When the two handles are released, the output shaft of the resistance motor 4 drives the wire spool 5 to do reverse movement, so that the handles 33 on the support arm 3 are restored to the original positions.

When the device is used in one-hand training, a trainer can only pull the handle 33 on one of the support arms 3, the end position of the second tension rope 15 on the side is fixed and kept unchanged due to the fact that the handle 33 on the other side is fixed, the second tension rope 15 on one side of the handle 33 is pulled, the movable pulley group 9 is pulled to move upwards in the frame 2 through the fixed pulley 14 on the side close to the second tension rope, and along with the movement of the movable pulley group 9, the free end of the first tension rope 7 is fixed on the upper base plate 101, only the first tension rope 7 wound on the wire reel 6 can be pulled outwards to rotate along with the rotation of the wire reel 6, the outer rotor of the resistance motor 4 is driven to rotate, and the outer rotor rotates along the central axis of the resistance motor 4, so that a resistance source of the chest expander is formed. When the handle 33 is released, the resistance motor 4 drives the wire spool 6 to move reversely, so that the handle 33 on the support arm 3 is restored to the original position. The novel portable chest expander has the advantages of reasonable structural design, convenience in operation, portability, strong controllability, suitability for environments with small spaces such as families, and the like, the size of a resistance source is not reduced due to the increase of time, frequent replacement of parts is not needed, a trainer inputs more energy into training, accordingly, the body-building effect of the trainer is improved, the supporting legs are movably connected, the supporting legs can be adjusted according to indoor ground conditions when in use, the overall stability of the chest expander is guaranteed, the applicability of the chest expander is improved, the chest expander is convenient to store, the cleaning and sweeping of the ground at home are facilitated, the collision caused by the supporting legs is effectively prevented, the dirty storage space is reduced, and the problem existing in the prior art is solved.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model and are intended to be within the scope of the appended claims and description; any alternative modifications or variations to the embodiments of the present utility model will fall within the scope of the present utility model for those skilled in the art.

The present utility model is not described in detail in the present application, and is well known to those skilled in the art.

Claims (10)

1. The pull-wire trainer is characterized by comprising a chassis and a frame arranged on the chassis, wherein supporting arms are respectively arranged on the side walls of the left side and the right side of the frame, the chassis comprises an upper bottom plate and a lower bottom plate which are arranged in parallel, the lower bottom plate is connected with the upper bottom plate through supporting columns arranged at four corners of the lower bottom plate, a resistance motor in the chassis is arranged in the chassis through a motor bracket, a wire spool is arranged on one side of the resistance motor, a first tension rope is wound on the wire spool, a wire passing hole is formed in the upper bottom plate corresponding to the position of the wire spool, a movable wheel set is arranged in the frame, the free end of the first tension rope upwards penetrates through the wire passing hole and is connected with the upper bottom plate after bypassing the movable wheel set, and a pull wire assembly matched with the movable wheel set is arranged in the frame; support members are movably sleeved on the support columns, movable plates are symmetrically and horizontally arranged on the left side and the right side of the lower base plate respectively, each movable plate is connected with the upper base plate through a plurality of connecting columns arranged on the surfaces of the movable plates, and universal wheels are respectively arranged at the front end and the rear end of the bottom of each movable plate.

2. The pull-wire trainer according to claim 1, wherein the driving wheel set comprises clamping plates which are arranged in a front-back symmetrical manner, the two clamping plates are connected through a connecting plate, a lower pulley is arranged between the two clamping plates at the lower part, the shaft ends of the lower pulley are respectively connected with the clamping plates at the corresponding side, the free end of the first pull-wire rope bypasses the lower pulley to be connected with the upper base plate, two upper pulleys are arranged between the two clamping plates above the lower pulley side by side, and the shaft ends of the two upper pulleys arranged in the direction of the coaxial line are respectively connected with the clamping plates at the corresponding side.

3. The pull-wire trainer according to claim 2, wherein the pull-wire assembly comprises three fixed pulleys sequentially arranged at the inner top of the frame from left to right, a second pull rope is arranged in the frame, the second pull rope bypasses the middle fixed pulley, the free end of the left side of the second pull rope bypasses the upper pulley on the front side downwards and from the left side of the driven pulley group, and penetrates into the right side support arm and extends outwards after bypassing the right fixed pulley upwards; the free end of the right side of the fixed pulley is downward and the right side of the driven pulley group bypasses the upper pulley at the rear side, and then upwards bypasses the fixed pulley at the left side, penetrates into the support arm at the left side and extends out.

4. The guy wire trainer according to claim 1, wherein limiting plates are vertically arranged in the underframe, the upper end and the lower end of the limiting plates are respectively fixedly connected to the upper side and the lower side of the underframe, and limiting holes movably clamped on the wire reels are formed in the limiting plates.

5. The pull-wire trainer according to claim 1, wherein the resistance motor is an outer rotor motor, wherein a shaft is connected with a motor bracket, and the wire spool is arranged on a shell of the resistance motor and is arranged in the direction of the coaxial line of the outer rotor.

6. The pull-wire trainer according to claim 1, wherein the support member comprises support legs, wherein the inner ends of the support legs are provided with sleeves movably sleeved on the corresponding support columns, the bottoms of the outer ends of the support legs are provided with suckers, the sleeves are internally provided with shaft sleeves clamped on the corresponding support columns, and the two sides of the inner ends of the support legs are respectively provided with reinforcing ribs connected with the sleeves.

7. The pull-string trainer according to claim 6, wherein the bottom shell and the rubber pad of the sucker are arranged at the bottom of the supporting leg, and the wrench of the sucker is arranged on the surface of the supporting leg.

8. A pull-wire trainer according to claim 3, wherein each of the support arms is connected with the frame through an adjusting mechanism, the adjusting mechanism comprises a fixing plate vertically arranged in the frame and connecting plates arranged at the left side and the right side of the fixing plate, a support plate arranged in parallel with the fixing plate is arranged at the rear side of the fixing plate, the support plate is connected with the fixing plate through a support piece arranged at the four corners of the support plate, the support piece comprises a stand column arranged on the rear side wall of the fixing plate, a threaded rod movably penetrating through the support plate is arranged at the center of the outer end of the stand column, a locking nut matched with the threaded rod is arranged on the rear side wall of the support plate, a cylinder is arranged at the center of the side wall of the support plate at one side towards the fixing plate, a tooth socket is arranged at the center of the front side wall of the cylinder at one side towards the fixing plate, a conduit vertically penetrating through the support plate is arranged at the rear end of the cylinder, a clamping groove is vertically penetrated at the rear end of the conduit, a pulley is movably clamped in the conduit between the clamping grooves through a rotating shaft, and the upper end of the pulley extends upwards; the connecting piece that links to each other with the support arm is equipped with in the fixed plate front side, the connecting piece includes the mounting panel, is equipped with the joint pipe that passes the fixed plate perpendicularly at mounting panel back lateral wall central authorities, joint pipe and the coaxial heart line direction setting of conduit, the joint pipe lateral wall cover of fixed plate rear side is equipped with the gear with tooth's socket matched with, is equipped with the stand pipe of cup jointing on joint pipe on the fixed plate front side wall, the stand lateral wall is outwards worn out to the stand pipe, after the fixed pulley of left and right sides was walked around to the free end of second pulling rope, in stretching into the conduit through the pulley, pass conduit, cylindrical tooth's socket, joint pipe and pass the support arm in proper order and link to each other with the handle.

9. A pull-string training device as claimed in claim 8, wherein the cross section of the frame is isosceles trapezoid.

10. The pull-wire trainer according to claim 1, wherein the resistance motor is an outer rotor motor, wherein a shaft is connected with a motor bracket, and the wire spool is arranged on a shell of the resistance motor and is arranged in the direction of the coaxial line of the outer rotor.