CN214158495U

CN214158495U - Be applied to body-building apparatus's digging arm

Info

Publication number: CN214158495U
Application number: CN202022531253.5U
Authority: CN
Inventors: 佟樑; 马超
Original assignee: Foshan Samas Technology Co ltd
Current assignee: Foshan Samas Technology Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-09-10
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses a be applied to body-building apparatus's digging arm, including slip unit, upset unit and rotating unit, the slip unit includes sliding base, slider, first locating part and circular arc lid, and the upset unit is including motion arm, second locating part, slip lid and prevent grey spare, and the rotating unit includes fixed beam, end fixing spare, and third locating part. The device provides a new movable arm structure of being applied to body-building apparatus, and it can realize carrying out altitude mixture control, vertical upset and axial rotation to the digging arm, makes body-building apparatus get the user mode and people's exercise mode more nimble to this digging arm compact structure, the appearance is pleasing to the eye, and very suitable family uses.

Description

Be applied to body-building apparatus's digging arm

Technical Field

The utility model relates to a body-building apparatus technical field, especially a be applied to body-building apparatus's digging arm.

Background

At present, more and more people begin to pay attention to fitness and shaping. The main place of the existing fitness is a gymnasium, the geographic position of the gymnasium, the completeness of facilities, the business hours and other factors can influence the participation and experience of people, and in addition, the frequency of going to the gymnasium for fitness can be reduced due to irregular personal time of the people. Therefore, the fitness equipment capable of being used at home is gradually concerned, but the fitness equipment used at home in the market has the problems of single function, large floor area, insufficient intelligence of the system and the like. Although the variety of the household fitness equipment is various, most of common household products such as a treadmill, a bicycle, an elliptical machine, a dumbbell, a rowing machine and the like are the equipment combining oxygen or oxygen and oxygen, the strength exercise is relatively less, some fitness enthusiasts with high requirements, comprehensive pursuits and insufficient personal time have to buy a plurality of fitness equipment to put the fitness equipment into a house, so that the fitness equipment occupies a large area of the house, the whole price of the fitness equipment is high due to the increase of the number of the fitness equipment, and meanwhile, the intellectualization is insufficient, and the situation that a lot of people are prevented from actively participating in the exercise is still prevented.

At present, some intelligent fitness equipment suitable for non-fitness venues such as families and the like have appeared in China, for example, a patent with the patent application number of '201911276871.5' discloses a strength training and running fitness all-in-one machine which combines a treadmill and a strength training device together to enable the treadmill to be folded, so that the folded treadmill and the strength training device are combined for storage, the floor area is reduced, and the intelligent fitness equipment is particularly convenient for families to use and store; the movable arm pipe can be used for height adjustment, vertical overturning and axial rotation, and is very practical. However, the structure for adjusting the movable arm pipe is too complex, and the assembly difficulty is high.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems associated with the prior art movable arms for exercise equipment.

Therefore, the utility model aims to solve the problem of how to provide a novel movable arm structure applied to fitness equipment.

In order to solve the technical problem, the utility model provides a following technical scheme: a movable arm applied to fitness equipment comprises a sliding unit, a first limiting part and a second limiting part, wherein the sliding unit comprises a sliding base arranged on the side face of a fitness equipment body, a sliding part matched with the sliding base, and the first limiting part is arranged in the sliding part and matched with the sliding base; and the overturning unit comprises a moving arm in rotating fit with the sliding piece and a second limiting piece arranged at the end part of the moving arm.

As an optimized scheme of the movable arm applied to the fitness equipment, wherein: the sliding base is provided with a plurality of limiting holes along the length direction array, the first limiting part comprises a connecting block connected with the sliding part, a limiting column arranged inside the connecting block and matched with the limiting holes, a pulling plate inserted in the connecting block and matched with the limiting column, and a first electromagnetic lock matched with the pulling plate, a long circular hole is formed in the pulling plate, the included angle between the long circular hole and the sliding base is an acute angle, and the end part of the limiting column is provided with an inserting column matched with the long circular hole.

As an optimized scheme of the movable arm applied to the fitness equipment, wherein: the connecting block is provided with a first hole matched with the limiting column, and the limiting column is provided with a first elastic piece.

As an optimized scheme of the movable arm applied to the fitness equipment, wherein: the sliding part comprises a sliding support which is in sliding fit with the sliding base, the sliding support comprises a hinged support and a first limiting groove, the top surface of the hinged support is arc-shaped, and a plurality of first limiting grooves are arranged in an array along the circumferential direction of the hinged support; the second locating part comprises a second electromagnetic lock arranged at the end part of the moving arm, a first clamping block connected with the second electromagnetic lock and matched with the first limiting groove, an end head hinged with the hinged support and a second elastic part arranged between the first clamping block and the end head.

As an optimized scheme of the movable arm applied to the fitness equipment, wherein: and passages for the steel wire pull rope to pass through are arranged in the limiting column, the end head and the moving arm.

As an optimized scheme of the movable arm applied to the fitness equipment, wherein: the body-building equipment comprises a body-building equipment main body, and is characterized by further comprising rotary units, wherein the rotary units are arranged at two ends of the body-building equipment main body and comprise fixing beams connected with the end portions of the body-building equipment main body, end fixing pieces for fixing the sliding base on the fixing beams, and third limiting pieces matched with the end fixing pieces.

As an optimized scheme of the movable arm applied to the fitness equipment, wherein: the fixed beam both ends are provided with the slot, the tip mounting include with the slot cooperation and with sliding base tip fixed connection's unable adjustment base, and will unable adjustment base fixes on the fixed beam and rather than rotary fit's connection lid.

As an optimized scheme of the movable arm applied to the fitness equipment, wherein: the third locating part is including connecting on the unable adjustment base round platform, with round platform complex second joint piece, and with the third electromagnetic lock that the second joint piece is connected, the array be provided with on the round platform with second joint piece complex second spacing groove.

As an optimized scheme of the movable arm applied to the fitness equipment, wherein: the sliding unit further comprises an arc cover wrapping the sliding base, and first grooves matched with the protrusions are formed in two ends of the arc cover.

As an optimized scheme of the movable arm applied to the fitness equipment, wherein: the middle part of the moving arm is provided with a control button for controlling the second electromagnetic lock, and the overturning unit further comprises a sliding cover for wrapping the first limiting part and the sliding part and an ash-proof part fixed on the connecting block and connected with the moving arm.

The beneficial effects of the utility model are that a new movable arm structure of being applied to body-building apparatus is provided, it can realize carrying out altitude mixture control, vertical upset and axial rotation to the digging arm, makes body-building apparatus get the user mode and people's exercise mode more nimble to this digging arm compact structure, the appearance is pleasing to the eye, and very suitable family uses.

Drawings

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

fig. 1 is a block diagram of a movable arm applied to an exercise apparatus in example 1.

Fig. 2 is a structural view of a sliding unit and a tilting unit applied to a movable arm of an exercise apparatus in example 1.

Fig. 3 is an exploded view of the first limiting member applied to the movable arm of the fitness equipment in example 1.

Figure 4 is a diagram of a connector block applied to the moveable arm of the exercise apparatus of example 1.

Fig. 5 is a structural diagram of a second limiting member applied to a movable arm of an exercise apparatus in example 1.

Fig. 6 is a view showing the configuration of a rotating unit at the top of a movable arm applied to the exercise apparatus in example 2.

Fig. 7 is a view showing the structure of a rotating unit at the bottom of a movable arm applied to an exercise machine in example 2.

Figure 8 is a schematic view of the control buttons and dust guard of the moveable arm of the exercise apparatus of example 1.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 5 and 8, for the first embodiment of the present invention, the embodiment provides a movable arm applied to a fitness apparatus, the movable arm applied to the fitness apparatus includes a sliding unit 100 and a turning unit 200, and the turning unit 200 includes a movable arm 201, which can slide up and down on the sliding unit 100.

Specifically, the sliding unit 100 includes a sliding base 101 disposed on a side surface of the body-building apparatus, a sliding member 102 engaged with the sliding base 101, and a first limiting member 103 disposed inside the sliding member 102 and engaged with the sliding base 101. The two sliding units 100 are respectively disposed on two sides of the body-building apparatus main body, and it should be noted that the body-building apparatus main body includes conventional body-building apparatus components such as a display screen, a control circuit, an electromagnetic motor, a gear, a steel wire rope, and the like. In this embodiment, the sliding base 101 is fixedly connected to the body-building apparatus. The sliding base 101 is provided with a plurality of limiting holes 101a along the length direction thereof in an array manner, the first limiting member 103 comprises a connecting block 103a connected with the sliding member 102, a limiting post 103b arranged inside the connecting block 103a and matched with the limiting hole 101a, a pulling plate 103c inserted in the connecting block 103a and matched with the limiting post 103b, and a first electromagnetic lock 103d matched with the pulling plate 103c, the pulling plate 103c is provided with an oblong hole 103c-1, the included angle between the oblong hole 103c-1 and the sliding base 101 is an acute angle, and the end of the limiting post 103b is provided with an insertion post 103b-1 matched with the oblong hole 103 c-1. When the first electromagnetic lock 103d pulls the pulling plate 103c, the stopper post 103b engaged with the pulling plate 103c is lifted up and separated from the stopper hole 101a, and the entire slider 102 can slide up and down on the slide base 101. The first electromagnetic lock may be controlled by clicking a screen on the body-building apparatus body.

The flipping unit 200 includes a moving arm 201 rotatably engaged with the slider 102, and a second stopper 202 disposed at an end of the moving arm 201. The sliding part 102 comprises a sliding support 102a which is in sliding fit with the sliding base 101, the sliding support 102a comprises a hinged support 102a-1 and a first limiting groove 102a-2, the top surface of the hinged support 102a-1 is in a circular arc shape, and a plurality of first limiting grooves 102a-2 are arranged in an array along the circumferential direction of the hinged support 102 a-1; the second limiting member 202 includes a second electromagnetic lock 202a disposed at an end of the moving arm 201, a first engaging block 202b connected to the second electromagnetic lock 202a and engaged with the first limiting groove 102a-2, a head 202c hinged to the hinge support 102a-1, and a second elastic member 202d disposed between the first engaging block 202b and the head 202 c. When the second electromagnetic lock 202a pulls the first clamping block 202b, the first clamping block 202b is disengaged from the first limiting groove 102a-2, so that the moving arm 201 can rotate axially around the hinged support 102 a-1. The second elastic member 202d is also a spring.

Further, a first hole 103a-1 matched with the limiting column 103b is formed in the connecting block 103a, a first elastic member 103b-2 is arranged on the limiting column 103b, the first elastic member 103b-2 has the function that when the first electromagnetic lock 103d is closed, the limiting hole 101a is inserted into the limiting hole 101a under the action of the first elastic member 103b-2, and preferably, the first elastic member 103b-2 is a spring.

Furthermore, a channel 201a for a steel wire rope to pass through is arranged in the limiting column 103b, the end 202c and the moving arm 201. One end of the steel wire pull rope is connected with the handle held by a hand, the other end of the steel wire pull rope is connected with an electromagnetic motor in the body of the fitness equipment, and the electromagnetic motor provides pulling force for training.

Further, a control button 201e for controlling the second electromagnetic lock 202a is disposed in the middle of the moving arm 201, and the flipping unit 200 further includes a sliding cover 203 for covering the first limiting member 103 and the sliding member 102, and a dust-proof member 204 fixed to the connecting block 103a and connected to the moving arm 201. Since the vertical angle of the moving arm 201 may need to be adjusted frequently during exercise, if the control end of the second electromagnetic lock 202a is placed on the body-building apparatus, it is too time-consuming to adjust each time, and the exercise state needs to be exited, and the control button 201e is placed in the middle of the moving arm 201, so that the control button 201e can be directly pressed to adjust the moving arm 201, which is more convenient. The sliding cover 203 is arranged to play a role of aesthetic protection, the dust-proof member 204 is arranged to prevent dust from falling, and the material used for the dust-proof member 204 is soft and elastic material, such as rubber.

To sum up, the sliding base 101 is fixed on the side of the body-building apparatus main body, the sliding support 102a is in sliding fit with the sliding base 101, the sliding support 102a is provided with a first limiting groove 102a-2, the connecting block 103a is connected with the sliding support 102a by a screw, the connecting block 103a is provided with a first hole 103a-1, the limiting column 103b and the first elastic member 103b-2 are both arranged in the first hole 103a-1, the pulling plate 103c is matched with the limiting column 103b, the first electromagnetic lock 103d can pull the pulling plate 103c, the moving arm 201 is hinged with the sliding support 102a, and the second limiting member 202 is matched with the first limiting groove 102 a-2.

When in use, the first electromagnetic lock 103d is controlled by clicking the control button of the first electromagnetic lock 103d on the upper screen of the body-building apparatus main body, so that the pulling plate 103c is pulled, the limiting column 103b is separated from the limiting hole 101a, then the position of the sliding part 102 is adjusted, after the adjustment is finished, the control button of the first electromagnetic lock 103d is closed, the limiting hole 101a is inserted into the limiting hole 101a for limiting under the action of the first elastic part 103b-2, then, a control button 201e in the middle of the moving arm 201 is pressed to control the second electromagnetic lock 202a to drive the first clamping block 202b to be separated from the first limiting groove 102a-2, the moving arm 201 is adjusted to a proper angle, the second electromagnetic lock 202a is powered off by loosening or pressing the control button 201e again, the first clamping block 202b is inserted into the first limiting groove 102a-2 under the action of the second elastic piece 202d, and the moving arm 201 is limited.

Example 2

Referring to fig. 6 and 7, a second embodiment of the present invention, which is different from the first embodiment, is: a rotation unit 300 is also included. In the above embodiment, the movable arm applied to the exercise apparatus includes a sliding unit 100 and a flipping unit 200, and the flipping unit 200 includes a movable arm 201 which can slide up and down on the sliding unit 100.

Specifically, the sliding unit 100 includes a sliding base 101 disposed on a side surface of the body-building apparatus, a sliding member 102 engaged with the sliding base 101, and a first limiting member 103 disposed inside the sliding member 102 and engaged with the sliding base 101. The sliding base 101 is provided with a plurality of limiting holes 101a along the length direction thereof in an array manner, the first limiting member 103 comprises a connecting block 103a connected with the sliding member 102, a limiting post 103b arranged inside the connecting block 103a and matched with the limiting hole 101a, a pulling plate 103c inserted in the connecting block 103a and matched with the limiting post 103b, and a first electromagnetic lock 103d matched with the pulling plate 103c, the pulling plate 103c is provided with an oblong hole 103c-1, the included angle between the oblong hole 103c-1 and the sliding base 101 is an acute angle, and the end of the limiting post 103b is provided with an insertion post 103b-1 matched with the oblong hole 103 c-1.

The flipping unit 200 includes a moving arm 201 rotatably engaged with the slider 102, and a second stopper 202 disposed at an end of the moving arm 201. The sliding part 102 comprises a sliding support 102a which is in sliding fit with the sliding base 101, the sliding support 102a comprises a hinged support 102a-1 and a first limiting groove 102a-2, the top surface of the hinged support 102a-1 is in a circular arc shape, and a plurality of first limiting grooves 102a-2 are arranged in an array along the circumferential direction of the hinged support 102 a-1; the second limiting member 202 includes a second electromagnetic lock 202a disposed at an end of the moving arm 201, a first engaging block 202b connected to the second electromagnetic lock 202a and engaged with the first limiting groove 102a-2, a head 202c hinged to the hinge support 102a-1, and a second elastic member 202d disposed between the first engaging block 202b and the head 202 c.

The connecting block 103a is provided with a first hole 103a-1 matched with the limiting column 103b, and the limiting column 103b is provided with a first elastic piece 103 b-2. A channel 201a for a steel wire pull rope to pass through is arranged in the limiting column 103b, the end head 202c and the moving arm 201. The middle of the moving arm 201 is provided with a control button 201e for controlling the second electromagnetic lock 202a, and the flipping unit 200 further includes a sliding cover 203 for wrapping the first limiting member 103 and the sliding member 102, and a dust-proof member 204 fixed on the connecting block 103a and connected to the moving arm 201.

Further, still include rotary unit 300, rotary unit 300 set up in the both ends of body-building apparatus main part, include with body-building apparatus main part end connection's fixed beam 301, will sliding base 101 is fixed end fixing piece 302 on fixed beam 301, and with end fixing piece 302 complex third locating part 303, fixed beam 301 both ends are provided with slot 301a, end fixing piece 302 include with slot 301a cooperation and with sliding base 101 end fixed connection's unable adjustment base 302a, and will unable adjustment base 302a is fixed cover 302b on fixed beam 301 and rather than rotary fit.

Further, the third limiting part 303 includes a circular truncated cone 303a connected to the fixing base 302a, a second clamping block 303b matched with the circular truncated cone 303a, and a third electromagnetic lock 303c connected to the second clamping block 303b, and a second limiting groove 303a-1 matched with the second clamping block 303b is arranged on the circular truncated cone 303a in an array. The control end of the third electromagnetic lock 303c is the same as the first electromagnetic lock 103d, and is arranged on the body-building apparatus main body and can be controlled by the display screen.

Further, a protrusion 302a-1 is disposed on an end surface of the fixed base 302a, the sliding unit 100 further includes an arc cover 104 that wraps the sliding base 101, and first grooves 104a that are engaged with the protrusion 302a-1 are disposed at two ends of the arc cover 104.

In summary, the fixed beam 301 is fixed at the upper and lower ends of the body-building apparatus, the fixed base 302a is connected with the fixed beam 301 through the connecting cover 302b, and a bearing is disposed in the connecting cover 302b, so the fixed base 302a can rotate relative to the fixed beam 301, the fixed beam 301 is connected with the sliding base 101 through a screw, the third limiting member 303 is disposed at the bottom end of the body-building apparatus, the third electromagnetic lock 303c drives the second engaging block 303b to move, and the axial rotation of the whole movable arm structure is controlled by whether the second engaging block 303b is inserted into the second limiting groove 303 a-1. The sliding support 102a is in sliding fit with the sliding base 101, a first limiting groove 102a-2 is arranged on the sliding support 102a, the connecting block 103a is connected with the sliding support 102a through screws, a first hole 103a-1 is formed in the connecting block 103a, the limiting column 103b and the first elastic piece 103b-2 are arranged in the first hole 103a-1, the pulling plate 103c is matched with the limiting column 103b, the first electromagnetic lock 103d can pull the pulling plate 103c, the moving arm 201 is hinged with the sliding support 102a, and the second limiting piece 202 is matched with the first limiting groove 102 a-2.

When in use, the first electromagnetic lock 103d is controlled by clicking the control button of the first electromagnetic lock 103d on the screen of the body-building apparatus main body to pull the pull plate 103c, so that the limiting column 103b is separated from the limiting hole 101a, then the position of the sliding part 102 is adjusted, after the adjustment is completed, the control button of the first electromagnetic lock 103d is closed, the limiting hole 101a is inserted into the limiting hole 101a for limiting under the action of the first elastic part 103b-2, the third electromagnetic lock 303c is controlled by clicking the control button of the third electromagnetic lock 303c on the screen of the body-building apparatus main body to pull the second clamping block 303b, so that the second clamping block 303b is separated from the second limiting groove 303a-1, then the axial angle of the sliding base 101 is adjusted, after the adjustment is completed, the control button of the third electromagnetic lock 303c is closed, the second clamping block 303b is inserted into the second limiting groove 303a-1 for limiting under the action of the spring, then, a control button 201e in the middle of the moving arm 201 is pressed to control the second electromagnetic lock 202a to drive the first clamping block 202b to be separated from the first limiting groove 102a-2, the moving arm 201 is adjusted to a proper angle, the second electromagnetic lock 202a is powered off by loosening or pressing the control button 201e again, the first clamping block 202b is inserted into the first limiting groove 102a-2 under the action of a spring, and the moving arm 201 is limited.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a be applied to body-building apparatus's digging arm which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the sliding unit (100) comprises a sliding base (101) arranged on the side face of the body-building equipment body, a sliding piece (102) matched with the sliding base (101), and a first limiting piece (103) arranged inside the sliding piece (102) and matched with the sliding base (101);

the overturning unit (200) comprises a moving arm (201) which is in rotating fit with the sliding piece (102), and a second limiting piece (202) which is arranged at the end part of the moving arm (201).

2. The arm as claimed in claim 1, wherein: a plurality of limiting holes (101a) are arranged on the sliding base (101) along the length direction in an array manner, the first limiting piece (103) comprises a connecting block (103a) connected with the sliding piece (102), a limiting column (103b) arranged in the connecting block (103a) and matched with the limiting hole (101a), and a pulling plate (103c) inserted in the connecting block (103a) and matched with the limiting column (103b), and a first electromagnetic lock (103d) matched with the pulling plate (103c), wherein the pulling plate (103c) is provided with a long circular hole (103c-1), the included angle between the oblong hole (103c-1) and the sliding base (101) is an acute angle, the end part of the limiting column (103b) is provided with an inserting column (103b-1) matched with the oblong hole (103 c-1).

3. The arm as claimed in claim 2, wherein: the connecting block (103a) is provided with a first hole (103a-1) matched with the limiting column (103b), and the limiting column (103b) is provided with a first elastic piece (103 b-2).

4. The movable arm for an exercise apparatus according to claim 2 or 3, wherein: the sliding part (102) comprises a sliding support (102a) which is in sliding fit with the sliding base (101), the sliding support (102a) comprises a hinged support (102a-1) and a first limiting groove (102a-2), the top surface of the hinged support (102a-1) is in an arc shape, and a plurality of first limiting grooves (102a-2) are arranged in an array along the circumferential direction of the hinged support (102 a-1); the second limiting part (202) comprises a second electromagnetic lock (202a) arranged at the end part of the moving arm (201), a first clamping block (202b) connected with the second electromagnetic lock (202a) and matched with the first limiting groove (102a-2), a head (202c) hinged with the hinged support (102a-1), and a second elastic part (202d) arranged between the first clamping block (202b) and the head (202 c).

5. The arm as claimed in claim 4, wherein: and a channel (201a) for a steel wire pull rope to pass through is arranged in the limiting column (103b), the end head (202c) and the moving arm (201).

6. The arm as claimed in any one of claims 1, 3 or 5, wherein: the body-building equipment is characterized by further comprising a rotating unit (300), wherein the rotating unit (300) is arranged at two ends of the body-building equipment main body and comprises a fixed beam (301) connected with the end of the body-building equipment main body, an end fixing piece (302) for fixing the sliding base (101) on the fixed beam (301), and a third limiting piece (303) matched with the end fixing piece (302).

7. The arm as claimed in claim 6, wherein: fixed roof beam (301) both ends are provided with slot (301a), end fixing spare (302) including with slot (301a) cooperation and with sliding base (101) tip fixed connection's unable adjustment base (302a), and will unable adjustment base (302a) are fixed roof beam (301) are gone up and rather than rotary fit's connection lid (302 b).

8. The forearm for use with exercise apparatus according to claim 7, wherein: the third locating part (303) is including connecting round platform (303a) on unable adjustment base (302a), with round platform (303a) complex second joint piece (303b), and with third electromagnetic lock (303c) that second joint piece (303b) is connected, the array be provided with on round platform (303a) with second joint piece (303b) complex second spacing groove (303 a-1).

9. The movable arm for an exercise apparatus according to claim 7 or 8, wherein: the end face of the fixed base (302a) is provided with a protrusion (302a-1), the sliding unit (100) further comprises an arc cover (104) wrapping the sliding base (101), and two ends of the arc cover (104) are provided with first grooves (104a) matched with the protrusion (302 a-1).

10. The arm as claimed in claim 5, wherein: the middle of the moving arm (201) is provided with a control button (201e) for controlling the second electromagnetic lock (202a), and the overturning unit (200) further comprises a sliding cover (203) for wrapping the first limiting piece (103) and the sliding piece (102) and an ash-proof piece (204) which is fixed on the connecting block (103a) and connected with the moving arm (201).