TWM480400U - Multifunctional gymnastic apparatus folding structure - Google Patents

Description

Multifunctional fitness machine folding structure

The present invention provides a folding structure of a multi-functional fitness machine, in particular, an extension portion of an inward turning portion at a rear side of a base frame of the support frame body enables the second leg frame to fold the link mechanism inwardly onto the first leg frame It does not produce a card, so that the whole is folded into a flat state, so as to effectively reduce the occupied volume and improve the convenience of movement, handling and storage.

According to the rapid development of today's industry and commerce, there is a widespread sedentary or insufficient exercise in modern people, leading to an increase in the chances of suffering from high blood pressure, diabetes, heart disease, obesity and poor physical fitness. Strengthening heart and lung function, promoting metabolism and helping to eliminate psychological stress can maintain the best physical fitness status. In addition, modern people pay more attention to health, leisure and sports, so that sports equipment has gradually spread from fitness center to general. Used in the home, allowing users to exercise anytime, anywhere.

Moreover, the common sports equipment on the market mainly includes treadmills, exercise bikes, elliptical machines, steppers, plastic body exercise machines or weight training machines, among which the body-building fitness machine and the weight training machine can facilitate the user to carry out free-hand training. Auxiliary equipment and mechanical exercise, with effective stretching, stretching muscles, etc., and can achieve weight loss (such as slimming or lowering body fat) and weight gain (such as strengthening, fitness or fitness) Bodybuilding) and maintaining posture, so that individuals have the best physical and mental state.

Due to the limited indoor space of the general family, in order to meet the needs of users to use sports equipment in the home, the fitness machine or weight training machine is mostly moving toward the body, which is light, does not occupy space and is convenient to operate. However, the smaller fitness machine on the market Or the weight training machine has only a single function, and can only exercise the muscles of a specific part of the body to achieve a single movement effect. If the user wants to exercise the muscle groups of different parts of the body, it is necessary to purchase a plurality of other types of sports equipment, so that It takes a lot of money, and many sports equipments still occupy a certain amount of space when placed indoors. Some operators have developed multi-functional sports equipment, which can be used for stretching and exercising the back and abdominal muscles, but the sports equipment. The overall components are more and more complicated, which is not only inconvenient in operation, but also unsuitable for the user to carry or fold and store due to the large size of the sports equipment, and also has the problem of occupying space, and causes multiple sports equipment to be transported first. After disassembling and transporting separately, it is separately assembled, which also increases the cost of packing and assembly. The hours and costs, have yet to be engaged in this industry, it re-designed to be effectively addressed.

Therefore, the new creators have drawn up the relevant information and the lack of information on the use of sports equipment. The collection of relevant materials has been evaluated and considered by many parties, and the trial and modification of the multi-year research and development experience in this industry has been used to continuously design and modify the multi-functional fitness machine. A new type of structure was born.

The main purpose of the present invention is to provide a first shaft portion and a second shaft portion on the first leg frame pivotally connected to the front side of the base frame of the support frame, and to extend inwardly at the rear side of the base frame. The connecting shaft seat of the second tripod is pivotally connected, and the positioning bracket of the second tripod is pivotally connected with the back frame, and the first shaft portion of the first tripod is pivotally connected with the stopping body, and is first The second shaft portion of the tripod and the second shaft portion of the second tripod located below the connecting shaft seat are respectively pivotally connected with the first link and the second link of the link mechanism, and the first leg frame is assembled on the first leg frame. With the abutment body, it can be inward by the back side of the pedestal The extension of the turning part enables the second tripod to fold the link mechanism inwardly to the first leg frame without causing jamming or folding, so that the whole after folding is in a flat state, so as to effectively reduce the occupation. The size and size of the multi-functional fitness machine can be placed in a limited space, which also enhances the convenience of movement, handling and storage.

The second purpose of the present invention is that the fixing pin of the stop body positioning rod can be pulled out from the limiting hole and separated from the first shaft portion of the first leg of the supporting frame body, and can be pulled on the stopping body. Folding the first shaft portion as an axis to the first leg, and then pulling the pin rod of the second shaft portion from the perforation to be separated from the jack of the first link, then pushing the link mechanism The first link and the second link are relatively shortened in displacement adjustment, and the second link is connected with the third shaft portion as an axis to fold the first link to the second leg, and the first leg is to be After the butt joint shaft seat is folded into the base frame with the shaft hole as the axial center, the back frame can be rotated at an angle with the positioning shaft seat as the axis, and the bracket is disengaged from the abutting portion of the second leg frame. Then, the back frame is folded onto the second leg with the positioning shaft seat as the axis, and the multi-functional fitness machine can be transported without separate disassembly and transportation, and then separately assembled, which can effectively save transportation or separate disassembly. Working hours and costs.

1‧‧‧Support frame

11‧‧‧ pedestal

111‧‧‧Extension

1111‧‧‧Lock bolt

1112‧‧‧through hole

112‧‧‧Axis hole

113‧‧‧Locating pins

114‧‧‧Block

115‧‧‧ socket

12‧‧‧First tripod

121‧‧‧First shaft

1211‧‧‧Connected casing

122‧‧‧Second shaft

1221‧‧‧Perforation

1222‧‧‧Latching rod

123‧‧‧Docking shaft seat

1231‧‧‧ Positioning bolt

1232‧‧‧First hook

124‧‧‧Adjusting bolts

125‧‧‧cross bar

126‧‧‧ pulley

13‧‧‧Second stand

131‧‧‧Connected shaft seat

132‧‧‧ Third shaft

1321‧‧‧Axis hole

133‧‧‧ Positioning shaft seat

134‧‧‧ positioning card hole

135‧‧‧crossbar

1351‧‧‧second hook

136‧‧‧Resistance Department

137‧‧‧Hooks

14‧‧‧ Back frame

141‧‧‧ shaft

142‧‧‧ Back lever

143‧‧‧ bracket

15‧‧‧Cushion

151‧‧‧ shaft

152‧‧‧Cushion rod

153‧‧‧Pole

16‧‧‧Back pad

17‧‧‧elastic rope

171‧‧‧Act

172‧‧‧ grip

2‧‧‧stop body

21‧‧‧ Positioning rod

211‧‧‧ pole

212‧‧‧ side panels

2121‧‧‧Docking bolts

213‧‧‧Limited holes

214‧‧‧fixed pin

22‧‧‧A cushion

3‧‧‧ linkage mechanism

31‧‧‧ first link

311‧‧‧ jack

312‧‧‧Adjustment hole

32‧‧‧Second link

321‧‧‧Lock bolt

322‧‧‧ Positioning components

4‧‧‧Resist

41‧‧‧Support rod

411‧‧‧ alignment hole

42‧‧‧Cushion

The first picture is a three-dimensional appearance of the creation.

The second picture is a three-dimensional exploded view of the creation.

The third figure is a three-dimensional exploded view of another perspective of the creation.

The fourth figure is a use state diagram (1) of the preferred embodiment of the present invention.

The fifth figure is a use state diagram (2) of the preferred embodiment of the present invention.

The sixth figure is the first tripod, the stop body and the link mechanism before the folding of the creative support frame Stereo appearance.

The seventh figure is a side view of the first stand, the stop body and the link mechanism of the creative support frame when folded.

The eighth figure is a side view of the first stand, the stop body and the link mechanism of the creative support frame.

The ninth figure is a side view of the back frame of the creation support frame and the second stand.

The tenth figure is a side view of the back frame of the creative support frame and the second stand.

The eleventh figure is a three-dimensional appearance of the second stand and the first stand of the creative support frame before folding.

The twelfth figure is a side view of the second stand and the first stand of the creative support frame folded.

In order to achieve the above objectives and effects, the technical means and its construction adopted in the present invention are described in detail in the preferred embodiment of the present invention, and the structure and function are as follows.

Please refer to the first, second, third, fourth, fifth and sixth figures, which are respectively a three-dimensional appearance view, an exploded view of the creation, an exploded perspective view of another perspective, and a state of use diagram of the preferred embodiment (1) ), using the state diagram (2) and the first foot frame of the support frame, the stereoscopic appearance of the stop body and the link mechanism before folding, it can be clearly seen from the figure that the creation includes the support frame body 1. The stop body 2, the link mechanism 3 and the abutment body 4, wherein the support frame body 1 has a base frame 11 and a first leg frame 12 is pivotally connected to the front side of the base frame 11 12 is provided with a first shaft portion 121 near the center of the front side, and a second shaft portion 122 is located below the first shaft portion 121, and the base frame 11 is The connecting portion 111 of the second leg frame 13 is pivotally connected to the extending portion 111 of the inwardly turned side of the square bottom portion, and the connecting shaft seat 131 of the second leg frame 13 is pivotally disposed at the bottom side of the connecting shaft base 131. The third shaft portion 132 of the hole 1321 is pivotally connected with the lateral shaft 141 of the back frame 14 with respect to the positioning shaft seat 133 at the upper side of the third shaft portion 132, and a seat cushion 15 is disposed on the base frame 11, and A back pad 16 is disposed on the back frame 14.

Furthermore, the first leg frame 12 is a hollow rectangular frame, and the bottom side of the frame is pivotally connected to the corresponding shaft hole 112 of the base frame 11 by a positioning bolt 1231 which is transversely disposed by the butt shaft seat 123. And the first hook 1232 provided at the two sides of the docking shaft base 123 is fastened with the ring body 171 at one end of the elastic rope 17, and the grip 172 is connected to the other end of the ring body 171 (such as 4 and 5), an adjusting bolt 124 is laterally disposed at an outer side of the mating shaft base 123, and a crossbar 125 is disposed below the first legstock 12, and the crossbar 125 is adjacent to the first leg. The two sides of the frame 12 are provided with a pulley 126 for the elastic rope 17 to be circumvented for movement. In addition, the first shaft portion 121 at the front side of the first leg frame 12 has a plurality of connecting sleeves 1211 and is second. The shaft portion 122 has a through hole 1221 through which the pin 1222 can be inserted transversely.

However, the extending portion 111 of the base frame 11 is provided with a through hole 1112 through which the positioning pin 113 can be inserted transversely, and the second leg frame 13 is a hollow rectangular frame corresponding to the through hole above the frame. A positioning hole 134 through which the positioning pin 113 is inserted to prevent the second leg frame 13 from being rotated is disposed at 1112, and a cross bar 135 is disposed below the second leg frame 13, and the cross bar 135 The second buckle 1351 provided on the two sides can also be fastened with the ring body 171 at one end of the elastic rope 17, and the other end of the elastic rope 17 is connected with a grip 172 (as shown in the fourth and fifth figures). Moreover, the rear side of the second stand 13 is provided The plurality of the abutting portions 136 are provided at the two sides of the second leg frame 13 at a plurality of hooking rods 137 on which the grips 172 of the elastic cords 17 are hooked, and the shafts 141 of the back frame 14 are at both sides The backrest lever 142 of the connection is coupled with a back pad 16 and is pivotally connected to the resisting portion 136 at a center between the backrest bars 142 of the back frame 14 for different angle adjustments for supporting The tripod 13 forms a slanted bracket 143.

In addition, the front and rear sides of the base frame 11 of the support frame 1 are respectively provided with a plurality of blocking portions 114 (as shown in FIG. 5) and a socket 115, and the bottom side of the seat cushion 15 is pivotally connected to the socket 115. The shaft 151 is disposed, and the seat rod 152 for the combination of the seat cushion 15 is pivotally connected to the two sides of the shaft 151, and is pivotally connected to the blocking portion 114 at the center between the two seat cushion rods 152 of the seat cushion 15 The ejector pins 153 are formed at different angles to support the top surface of the seat cushion 15 (as shown in the fifth figure).

The stopping body 2 is pivotally connected to the first shaft portion 121 of the first leg frame 12 of the supporting frame body 1 and has a positioning rod 21, and at least one side of the positioning rod 21 of the stopping body 2 is provided. The horizontal support rods 211 are oppositely disposed on the support rods 211, and the opposite side plates 212 are disposed on the other side of the support rods 211, and then pivotally connected to the side plates 212. One of the first shaft portions 121 is connected to the butt bolts 2121 in the sleeve 1211, and the side plates 212 are respectively disposed at the upper and lower sides of the butt bolts 2121, and another connecting sleeve for the fixing pins 214 to penetrate the first shaft portion 121 is respectively provided. A plurality of limiting holes 213 for positioning and positioning are formed in the tube 1211.

The link mechanism 3 is pivotally connected to the second shaft portion 122 and the third shaft portion 132 at the inner side of the first leg frame 12 and the second leg frame 13 of the support frame body 1 and has at least two first links 31. And the second link 32, and the first link 31 of the link mechanism 3 is provided at one side The insertion rod 1222 of the second shaft portion 122 can be inserted into the insertion hole 311 for forming a movable pivotal connection, and a plurality of adjustment holes 312 are disposed at the other side of the insertion hole 311, and the first link 31 is sleeved thereon. The second connecting rod 32 has a locking bolt 321 which is transversely disposed in a shaft hole 1321 pivotally connected to the abutting surface of the third shaft portion 132, and is disposed on the second connecting rod 32. The positioning member 322 is inserted transversely with respect to the other side of the locking bolt 321 to extend into the adjusting hole 312 of the first connecting rod 31 for relative elongation or shortening displacement adjustment. Further, the link mechanism 3 is preferably implemented as The first connecting rod 31 and the second connecting rod 1 are provided, but in actual application, the single connecting rod, the plurality of folding connecting rods or the other supporting support frame body 1 may be supported according to requirements or structural design. The design of the effect structure is implemented.

The abutting body 4 is movably assembled on the first leg frame 12 of the support frame body 1 and has a support rod 41 disposed in the first leg frame 12 and located above the outer side of the stopper body 2, and the abutting body A plurality of alignment holes 411 are provided below the support rods 41 for adjusting the relative extension or shortening displacement of the adjustment bolts 124 of the first stand 12, and are disposed above the alignment holes 411. The flat cushion 42 is formed with a predetermined angle between the cushion 42 and the base frame 11 of the support frame 1.

When the creation is adjusted, the fixing pin 214 of the positioning rod 21 of the stopping body 2 can be pulled out from the limiting hole 213 and disengaged from the first shaft portion 121 of the first leg frame 12 of the supporting frame body 1. One of the engaging sleeves 1211 can be pulled by the positioning cushion 21 or the cushion 22 which is sleeved on the pole 211 to rotate at an angle upward or downward with the first shaft portion 121 as an axis, and is awaiting After the retaining body 2 is adjusted to the desired angle or height position, the fixing pin 214 is inserted into the other limiting hole 213 of the positioning rod 21, and the fixing pin 214 is inserted into the corresponding connecting sleeve of the first shaft portion 121. The clamping position is formed in the tube 1211, and the stopper body 2 is subjected to When the external force is affected, no rotation occurs.

When the link mechanism 3 is adjusted, the user can also rotate the counter-clockwise rotation of the positioning component 322 (such as a bolt) of the second link 32 to release the positioning component 322 from the first connection. At the adjusting hole 312 of the rod 31, the first leg frame 12 can be pushed to the first leg 31 and the second link 32 for relative extension or shortening displacement adjustment, and the first leg is to be pushed. The frame 12 is adjusted to a desired angle, and can be screwed on the positioning member 322 in a clockwise direction to be screwed, and the positioning member 322 is inserted into the corresponding adjustment hole 312 of the first link 31 to form a card. The positioning of the first leg frame 12 and the second leg frame 13 of the support frame body 1 can be improved by the first link 31 of the link mechanism 3 and the second link 32, thereby making the support frame body 1 Maintains good stability and is less prone to offset or sloshing.

The back frame 14 of the support frame 1 has an adjustable structure, and the back pad 16 on the back frame 14 or the back frame 14 can be firstly pulled up with the positioning shaft seat 133 of the second stand 13 as an axis. When the angle is rotated and the bracket 143 of the back frame 14 is disengaged from the abutting portion 136 of the second leg frame 13, the back frame 14 can be folded down to the second leg frame 13 with the positioning shaft seat 133 as an axis. Or, the bracket 143 of the back frame 14 can be flipped outwardly and then clamped on the abutting portion 136 of the second leg frame 13 for different angle adjustments. Similarly, the seat cushion 15 can be pulled by the seat cushion 15 so that the shaft 151 can be The socket 115 of the base frame 11 is rotated at an angle as an axis, and the ejector rod 153 of the seat cushion 15 can be flipped outwardly and then clamped on the blocking portion 114 of the base frame 11 for different angle adjustments, thereby making the cushion The back pad 16 flushed on the back frame 14 is formed in a state where the user can recline, and is suitable for users of different heights and weights, or can be used for multi-functional transformation adjustment according to physical activity intensity and training state. Thereby providing more exercise for the user Training method and easy to operate.

When the present invention is in use, the user can face the rear side of the support frame 1 on the crossbar 125 of the first stand 12 of the support frame body 1, and the two lower leg portions abut against the stop body 2 support rod 211. At the inner side of the cushion 22, the abdomen is abutted against the cushion 42 of the abutting body 4, and the hands can be held by the hands to carry out the prone posture, thereby exercising the muscles of the back, and the user's buttocks can also sit on the cushion 15 The upper side is formed in an inclined state, and the two legs are forwardly erected against the upper portion of the cushion 42 of the abutting body 4, and then the front side of the both feet is abutted against the inner side of the cushion 22 of the stopping body 2, and the hands can be held by both hands. The sit-up action is performed, or the user can recline back on the seat cushion 15 and the back pad 16 to form a tilt state, and the arm elbow portion is bent upward, and then the hand is grasped backwards on the cushion 42 to perform the supine leg. The action can also be pulled on the adjusting bolt 124 of the first leg frame 12 to be loosened in the counterclockwise direction and released from the matching hole 411 of the supporting rod 41 of the abutting body 4, so as to be abutted. The body 4 is pulled out from the support frame 1 to allow the user to sit on the seat cushion 15 or lie on the back pad 16 and by hands or feet The grip 172 of the elastic cord 17 is pulled to perform a kicking operation, a push chest, a push arm, and the like to assist the user in adjusting the exercise training manner to achieve the goal of physical fitness, and has the effect of whole body exercise.

Please refer to the seventh, eighth, ninth, tenth, eleventh and twelfth drawings, which are the side view of the first tripod, the stop body and the link mechanism of the creative support frame. Side view, side view of the back frame of the support frame and the second stand, the side view after folding, the second stand of the support frame and the three-dimensional appearance of the front stand before folding and the folded The side view, as can be clearly seen from the figure, when the present invention is folded, the fixing pin 214 of the stopper body 2 can be pulled out from the limiting hole 213 and separated from the first shaft portion of the supporting frame body 1. At the connection sleeve 1211 of 121, the stopper body 2 can be pulled with the first shaft portion 121 as an axis downward. Folding onto the first leg frame 12, and inserting the fixing pin 214 into the other limiting hole 213 and the corresponding connecting sleeve 1211 of the first shaft portion 121 to form a clamping position, so that the stopping body 2 cannot be rotated.

When the link mechanism 3 is folded, the user can first loosen the positioning component 322 of the second link 32 and disengage from the adjustment hole 312 of the first link 31, and then the second shaft portion. After the latch pin 1222 of the 122 is pulled out from the through hole 1221 and separated from the insertion hole 311 of the first link 31, the first link 31 and the second link 32 are pushed to perform relative shortening displacement adjustment, and the second The connecting rod 32 is folded with the third shaft portion 132 as an axis to fold the first link 31 downward to the second leg frame 13, and the abutting shaft seat 123 of the first stand 12 is pivoted with the shaft hole 112 as an axis. After being folded inwardly to the base frame 11, the back frame 14 can be rotated at an angle with the positioning shaft seat 133 as an axis, and the bracket 143 can be disengaged from the abutting portion 136 of the second leg frame 13, The back frame 14 can be folded down onto the second stand 13 with the positioning shaft seat 133 as an axis.

The fixing pin 214 of the supporting frame body 1 is pulled out from the through hole 1112 and is separated from the positioning card hole 134 of the second leg frame 13 to be pulled by the second leg frame 13 to extend the base frame 11 111 is rotated at an angle as an axial direction, and the extension portion 111 has a certain height from the inner side of the base frame 11 and is folded to the height of the second leg frame 13 after the link mechanism 3 is folded. The height of the connecting shaft seat 131 is smaller than that of the connecting shaft seat 131. Therefore, the second leg frame 13 can be folded with the extending portion 111 as an axis to smoothly fold the link mechanism 3 into the first leg frame 12 without causing jamming. Or the case of being unable to fold occurs, so that the support frame body 1, the stopper body 2, and the link mechanism 3 are folded into a flat state as a whole, so as to effectively reduce the overall structural length and height and reduce the occupied volume, and are limited. Space can be placed There are more multi-functional fitness machines, and the multi-functional fitness machine does not need to be disassembled separately before being transported and then separately assembled, thereby improving the convenience of moving, handling and storing, and saving transportation or separate disassembly. Working hours and costs.

The above detailed description is intended to illustrate a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are to be included in the scope of patents covered by this creation.

In summary, the above-mentioned multi-functional fitness machine folding structure can really achieve its efficacy and purpose when used. Therefore, this creation is a practical and excellent creation, which is in line with the application requirements of the new patent, and is submitted according to law. I hope that the trial committee will grant this case as soon as possible to protect the hard work of the new creators. If there is any doubt in the bureau, please do not hesitate to give instructions, and the new creators will try their best to cooperate with them.

1‧‧‧Support frame

11‧‧‧ pedestal

111‧‧‧Extension

1111‧‧‧Lock bolt

112‧‧‧Axis hole

113‧‧‧Locating pins

115‧‧‧ socket

12‧‧‧First tripod

121‧‧‧First shaft

1211‧‧‧Connected casing

122‧‧‧Second shaft

1221‧‧‧Perforation

1222‧‧‧Latching rod

123‧‧‧Docking shaft seat

1231‧‧‧ Positioning bolt

1232‧‧‧First hook

124‧‧‧Adjusting bolts

125‧‧‧cross bar

126‧‧‧ pulley

13‧‧‧Second stand

131‧‧‧Connected shaft seat

132‧‧‧ Third shaft

1321‧‧‧Axis hole

134‧‧‧ positioning card hole

135‧‧‧crossbar

1351‧‧‧second hook

136‧‧‧Resistance Department

137‧‧‧Hooks

14‧‧‧ Back frame

142‧‧‧ Back lever

143‧‧‧ bracket

15‧‧‧Cushion

151‧‧‧ shaft

152‧‧‧Cushion rod

16‧‧‧Back pad

17‧‧‧elastic rope

171‧‧‧Act

2‧‧‧stop body

21‧‧‧ Positioning rod

211‧‧‧ pole

212‧‧‧ side panels

2121‧‧‧Docking bolts

213‧‧‧Limited holes

214‧‧‧fixed pin

22‧‧‧A cushion

3‧‧‧ linkage mechanism

31‧‧‧ first link

311‧‧‧ jack

312‧‧‧Adjustment hole

32‧‧‧Second link

321‧‧‧Lock bolt

322‧‧‧ Positioning components

4‧‧‧Resist

41‧‧‧Support rod

42‧‧‧Cushion

Claims (10)

The utility model relates to a folding structure of a multifunctional fitness machine, which comprises a supporting frame body, a stopping body, a connecting rod mechanism and an abutting body, wherein: the supporting frame body is a first leg which has a base frame and is pivoted at a front side of the base frame The first shaft portion and the second shaft portion are disposed on the frame, and the connecting shaft seat of the second tripod is pivotally connected to the extending portion of the inward turning portion of the rear side of the base frame, and the connecting portion of the second leg frame is below the shaft seat a positioning frame of the first shaft portion is pivotally connected to the positioning shaft seat on the second leg frame; the stopping body is a positioning rod pivotally connected to the first shaft portion of the first leg frame, and is positioned At least one lateral strut is disposed at one side of the rod; the link mechanism is a first connecting rod having at least two second shaft portions and a third shaft portion pivotally connected to the first leg frame and the second leg frame a second connecting rod; the abutting body is a supporting rod having a movable assembly on the first leg of the supporting frame body and located at an outer side of the stopping body. The folding structure of the multifunctional fitness machine according to claim 1, wherein the base frame of the support frame is provided with a seat cushion, and the horizontal shaft of the back frame is pivotally connected to the positioning shaft seat of the second stand And a back pad is provided on the back frame. The multi-functional fitness machine folding structure according to the second aspect of the invention, wherein the rear side of the second leg of the support frame body is provided with a plurality of abutting portions, and the back sides of the shafts of the back frame are connected The backrest is combined with a back pad, and a bracket that is clamped on the resisting portion for different angle adjustment is pivotally connected at a center between the two backrest bars. The folding structure of the multi-functional fitness machine according to the first aspect of the invention, wherein the first leg of the support frame is pivotally connected to the base frame by using a positioning bolt that is transversely disposed by the butt shaft seat In the shaft hole, an adjusting bolt is transversely disposed at an outer side of the butt shaft seat, and a plurality of matching holes are provided below the support rod of the abutting body for adjusting the bolt to be inserted for relative elongation or shortening displacement adjustment. A cushion is placed above the support rod. The folding structure of the multifunctional fitness machine according to the first aspect of the invention, wherein the first shaft portion of the first leg of the supporting frame body has a plurality of connecting sleeves, and the positioning rod of the stopping body is opposite to the supporting rod The other side is provided with a side plate, and a butt bolt pivotally connected to one of the connecting sleeves is transversely disposed on the side plate, and the side plates are respectively disposed at two sides of the butt bolts for the fixing pins to penetrate into the other side. A plurality of limiting holes for forming a positioning position are formed in a connecting sleeve. The multi-functional fitness machine folding structure according to the first aspect of the invention, wherein the second shaft portion of the first leg of the support frame body has a perforation for laterally piercing the pin, and is disposed on the second leg. The third shaft portion has a shaft hole, and the first link side of the link mechanism is provided with a socket for the insertion of the pin to form a movable pivot connection, and the second link is laterally disposed at one side. A locking bolt pivotally connected to the shaft hole. The multi-functional fitness machine folding structure according to claim 6, wherein the first link of the link mechanism is provided with a plurality of adjusting holes on the other side of the jack, and is sleeved on the first link. The second connecting rod is transversely disposed with respect to the other side of the locking bolt, and a positioning element extending into the adjusting hole for relative elongation or shortening displacement adjustment. The folding structure of the multi-functional fitness machine according to the first aspect of the invention, wherein the extension portion of the support frame base body is provided with a through hole through which the positioning pin can be transversely disposed, and is disposed on the second leg frame. There is a positioning card hole through which the positioning pin can be inserted. The folding structure of the multifunctional fitness machine according to claim 1, wherein the support rod of the stop body positioning rod is provided with a cushion. The folding structure of the multifunctional fitness machine according to claim 1, wherein the height of the first link and the second link of the link mechanism folded onto the second leg of the support frame is smaller than the connecting axis The height of the seat.