CN220046967U - Anti-pinch folding mechanism and sports equipment - Google Patents

Abstract

The utility model provides a prevent pressing from both sides folding mechanism and sports apparatus, including first rotating member, the second rotating member, the locking piece, first elastic component and unlatching piece, first rotating member is equipped with the blocking piece, be equipped with a plurality of blocking portions on the week side of blocking piece, the locking piece is equipped with locking portion, when locking piece rotates with the second rotating member relative first rotating member, first elastic component drives locking portion and moves on the week side of first rotating member, when locking portion removes to blocking portion, locking portion and blocking portion form the spacing cooperation that prevents second rotating member and move towards the folding direction, act on the locking piece when the unlatching piece is driven the activity for locking portion and blocking portion release spacing cooperation, can continue to move towards the folding direction. Therefore, the second rotating piece is limited for many times in the folding direction through the limit fit of the locking piece and the blocking parts, the phenomenon of clamping caused by rapid lamination of the folding mechanism in the folding process is avoided, and the safety of the folding mechanism is improved.

Description

Anti-pinch folding mechanism and sports equipment

Technical Field

The present disclosure relates to the field of sports apparatuses, and in particular, to an anti-pinch folding mechanism and a sports apparatus.

Background

The problem that traditional sports equipment is inconvenient to store and occupies a large space is solved through the folding structure, and the problem can be effectively solved, so that the folding structure is widely applied to the sports equipment.

However, in the process of folding and storing sports equipment in the related art, the upright post can rotate to fit in the folding direction at one time, so that a clamping phenomenon can occur, and potential safety hazards exist.

Disclosure of Invention

The utility model aims to provide an anti-pinch folding mechanism and sports equipment, which are used for solving the problem that the folding mechanism folds a clamping hand and ensuring the safety of the using process.

In order to solve the technical problems, the following technical scheme is adopted in the present disclosure.

According to one aspect of the present disclosure, there is provided an anti-pinch folding mechanism comprising: the first rotating piece is provided with a blocking piece, and a plurality of blocking parts which are arranged at intervals are arranged on the peripheral side surface of the blocking piece; the second rotating piece is rotatably connected with the first rotating piece; the locking piece is movably connected to the second rotating piece and can rotate along with the second rotating piece relative to the first rotating piece, and the locking piece is provided with a locking part; the first elastic piece acts on the locking piece to drive the locking part to contact the peripheral side surface of the blocking piece so that the locking part can be driven to move on the peripheral side surface of the blocking piece when the second rotating piece rotates relative to the first rotating piece, and when the locking part moves to the blocking part, the locking part can form limit fit with the blocking part for preventing the second rotating piece from rotating in the folding direction; the unlocking piece can be driven to move and contact with the locking piece, so that the locking piece overcomes the acting force of the first elastic piece, and the locking part and the blocking part are in limit fit.

According to some embodiments of the disclosure, the barrier includes a first barrier and a second barrier; when the second rotating piece rotates to a unfolding state, the locking part and the first blocking part form limit fit; when the second rotating piece rotates to be close to the folding state, the locking part and the second blocking part form limit fit.

According to some embodiments of the present disclosure, a plurality of relief grooves are further formed on the peripheral side surface of the blocking block, wherein the relief grooves are arranged at intervals; the locking part can enter the abdication groove when moving to the abdication groove on the peripheral side surface of the blocking piece, and can prop against the first side surface of the abdication groove to form limit fit for preventing the second rotating piece from rotating towards the folding direction, and the first side surface is used as the blocking part.

According to some embodiments of the present disclosure, when the second rotating member rotates in the folding direction to drive the locking portion to move on the peripheral side surface of the blocking piece, the locking portion may move into the relief groove along the second side surface of the relief groove; when the second rotating piece rotates to the unfolding direction to drive the locking part to move on the peripheral side face of the blocking piece, the locking part can move along the second side face of the abdication groove to withdraw from the abdication groove.

According to some embodiments of the present disclosure, the anti-pinch folding mechanism further comprises a second elastic member; the second elastic piece is fixedly arranged on the second rotating piece and can rotate along with the second rotating piece relative to the first rotating piece, when the second rotating piece rotates to an unfolding state, the first rotating piece contacts with the second elastic piece, and the second elastic piece is compressed by the first rotating piece and the second rotating piece; or, the second elastic piece is fixedly arranged on the first rotating piece, when the second rotating piece rotates to a unfolding state, the second rotating piece contacts with the second elastic piece, and the second elastic piece is compressed by the first rotating piece and the second rotating piece; when the second elastic piece is compressed, the restoring force of the second elastic piece has a trend of driving the second rotating piece to rotate towards the unfolding direction, so that the locking part is tightly abutted against the first side face of the abdication groove. According to some embodiments of the present disclosure, a guide groove extending circumferentially around the rotation axis of the second rotation member is further provided on the circumferential side surface of the blocking block; the second rotating piece is provided with a guide block; the second elastic piece is arranged at one end of the guide groove; the second rotating member rotates relative to the first rotating member, the guide block slides in the guide groove, and when the second rotating member rotates to the unfolded state, the guide block compresses the second elastic member.

According to some embodiments of the disclosure, the first rotating member includes a first mounting portion between adjacent blocking portions and a second mounting portion between the guide groove and the blocking portion; the first mounting part is provided with a first fixing hole for fixing the first rotating piece; the second mounting part is provided with a second fixing hole for fixing the first rotating part.

According to some embodiments of the disclosure, the locking member is rotatably connected to the second rotation member; the first elastic member drives the locking member to rotate so that the locking portion contacts the peripheral side surface of the first rotating member.

According to some embodiments of the present disclosure, the anti-pinch folding mechanism further comprises a third elastic member; the third elastic piece acts on the unlocking piece to drive the unlocking piece to be separated from the locking piece; the unlocking piece can be driven to overcome the acting force of the third elastic piece so that the unlocking piece contacts the locking piece.

According to another aspect of the present disclosure, there is also provided an exercise apparatus including the anti-pinch folding mechanism of any one of the embodiments described above.

According to some embodiments of the disclosure, the sporting equipment is a rowing machine; the sports equipment comprises a main body and an upright post, wherein the first rotating piece is fixedly arranged on the main body, and the second rotating piece is fixedly arranged on the upright post, so that the upright post is rotationally connected with the main body through the anti-clamping folding mechanism. According to the technical scheme, the embodiment of the disclosure has at least the following advantages and positive effects:

in the anti-pinch folding mechanism of the embodiment of the disclosure, when the second rotating piece rotates relative to the first rotating piece, the locking part of the locking piece is driven to move on the peripheral side surface of the blocking block through the first elastic piece, and each time the locking part moves to be contacted with the blocking part arranged on the peripheral side surface of the blocking block at intervals, the locking part can form limiting fit for preventing the second rotating piece from rotating towards the folding direction with each blocking part, so that the second rotating piece is prevented from rotating towards the folding direction at one time to be attached to the clamping hand. If the folding is to be continued, the unlocking piece is required to be operated to release the limit fit of the locking part and the blocking part. Therefore, through the arrangement of the plurality of blocking parts on the peripheral side surfaces of the blocking blocks, the clamping phenomenon caused by the fact that the folding mechanism is attached at one time due to the fact that the limiting parts are not arranged in the folding process is avoided by utilizing the limiting cooperation of the blocking parts and the locking parts, and the use safety of the folding mechanism is improved.

Drawings

Various objects, features and advantages of the present disclosure will become more apparent from the following detailed description of the preferred embodiments of the disclosure, when taken in conjunction with the accompanying drawings. The drawings are merely exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the drawings, like reference numerals refer to the same or similar parts throughout.

Wherein:

fig. 1 is a perspective view of a rowing machine according to an embodiment of the present disclosure.

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is an enlarged schematic view of the area a in fig. 2.

Fig. 4 is a perspective view of the blocking piece in fig. 3.

The reference numerals are explained as follows: 1. a first rotating member; 11. a relief groove; 111. a blocking portion (first side surface); 112. a second side; 1111. a first blocking portion; 1112. a second blocking portion; 12. a first mounting portion; 121. a first fixing hole; 13. a second mounting portion; 131. a second fixing hole; 14. a guide groove; 15. a blocking piece; 2. a second rotating member; 21. a guide block; 3. a locking member; 31. a locking part; 32. a locking arm; 33. a driving arm; 4. a first elastic member; 5. an unlocking member; 6. a second elastic member; 7. a third elastic member; 8 _、 A main body; 9. and (5) a column.

Detailed Description

While this disclosure may be susceptible to embodiment in different forms, there is shown in the drawings and will herein be described in detail, specific embodiments thereof with the understanding that the present disclosure is to be considered as an exemplification of the principles of the disclosure and is not intended to limit the disclosure to that as illustrated herein.

Thus, rather than implying that each embodiment of the present disclosure must have the illustrated features, one feature noted in this specification will be used to illustrate one of the features of an embodiment of the present disclosure. Furthermore, it should be noted that the present specification describes a number of features. Although certain features may be combined together to illustrate a possible system design, such features may be used in other combinations not explicitly described. Thus, unless otherwise indicated, the illustrated combinations are not intended to be limiting.

In the embodiments shown in the drawings, indications of orientation (such as up, down, left, right, front and rear) are used to explain the structure and movement of the various elements of the disclosure as opposed to absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the description of the position of these elements changes, the indication of these directions changes accordingly.

Referring to fig. 1 to 4, fig. 1 is a perspective view of a rowing machine according to an embodiment of the present disclosure. Fig. 2 is a cross-sectional view of fig. 1. Fig. 3 is an enlarged schematic view of the area a in fig. 2. Fig. 4 is a perspective view of the blocking piece in fig. 3. An anti-pinch folding mechanism provided in an embodiment of the present disclosure includes a first rotating member 1, a second rotating member 2, a locking member 3, a first elastic member 4, and an unlocking member 5.

The first rotary member 1 is provided with a stopper 15, and a plurality of stopper portions 111 are provided on the peripheral side surface of the stopper 15 at intervals.

The second rotating member 2 is rotatably connected to the first rotating member 1.

The locking member 3 is movably connected to the second rotating member 2 and is rotatable with the second rotating member 2 relative to the first rotating member 1, and the locking member 3 has a locking portion 31.

The first elastic member 4 acts on the locking member 3 to drive the locking portion 3 to contact the peripheral side surface of the blocking member 15, so that when the second rotating member 2 rotates relative to the first rotating member 1, the locking portion 3 can be driven to move on the peripheral side surface of the blocking member 15, and when the locking portion 3 moves to the blocking portion 111, the locking portion 3 can form a limit fit with the blocking portion 111 to prevent the second rotating member 2 from rotating in the folding direction.

The unlocking piece 5 can be driven to move and contact the locking piece 3, so that the locking piece 3 overcomes the acting force of the first elastic piece 1, and the locking part 3 is released from limiting fit with the blocking part 111.

When the second rotating member 2 rotates relative to the first rotating member 1, the first elastic member 4 drives the locking portion 31 of the locking member 3 to move on the circumferential side surface of the blocking block 15, and each time the locking portion 3 moves to be in contact with the blocking portions 111 arranged on the circumferential side surface of the blocking block 15 at intervals, the locking portion 3 can form limit fit with each blocking portion 111 to prevent the second rotating member 2 from rotating towards the folding direction, so that the second rotating member 2 is prevented from rotating towards the folding direction until the second rotating member is attached to the folding direction, and the clamping hands are prevented from being caused. To continue folding, the unlocking piece 5 needs to be operated to release the limit engagement of the locking portion 31 and the blocking portion 111. Therefore, by arranging the plurality of blocking parts 111 on the peripheral side surface of the blocking block 15, the clamping phenomenon caused by the fact that the folding mechanism is attached at one time due to no limit is avoided in the folding process by utilizing the limit fit of the blocking parts 111 and the locking parts 31, and the use safety of the folding mechanism is improved.

It should be noted that, when the second rotating member 2 is rotatably connected to the first rotating member 1, the second rotating member 2 and the first rotating member 1 rotate between the unfolded state and the folded state, the first rotating member 1 may be fixed, the second rotating member 2 may rotate, the second rotating member 2 may be fixed, the first rotating member 1 may rotate, and both the first rotating member 1 and the second rotating member 2 may rotate. The blocking piece 15 and the first rotating member 1 may be of a single piece or of a detachable structure.

The term "plurality" may be understood as two or more, that is to say the number of stops is two or more.

In the present embodiment, two barrier portions 111 are provided, including a first barrier portion 1111 and a second barrier portion 1112. When the second rotating member 2 rotates to the unfolded state, the locking portion 31 forms a limit fit with the first blocking portion. When the second rotating member 2 rotates to be close to the folded state, the locking portion 31 forms a limit fit with the second blocking portion.

The first blocking portion 1111 blocks the second rotation member 2 rotated to the unfolded state from rotating in the folding direction, so that the second rotation member 2 can be stably maintained in the unfolded state. The second blocking portion 1112 blocks the second rotating member 2 rotating to be close to the folded state from continuing to rotate towards the folding direction, so that buffering exists between the first rotating member 1 and the second rotating member 2 when the first rotating member 1 and the second rotating member 2 are folded, the second rotating member 2 cannot be attached to the first rotating member 1 at one time, and the phenomenon of folding clamping is avoided.

The peripheral side surface of the blocking piece 15 is also provided with a plurality of relief grooves 11 which are arranged at intervals. The locking portion 31 can enter the escape groove 11 when moving to the escape groove 11 on the peripheral side surface of the blocking piece 15, and can form a limit fit against the first side surface 111 of the escape groove 11 to prevent the second rotation member 2 from rotating in the folding direction, and the first side surface 111 serves as a blocking portion.

The locking member 3 contacts and moves on the peripheral side surface of the blocking piece 15, the yielding groove 11 provides a retaining space for the locking member 3, and when the locking portion 31 enters the yielding groove 11, the first side surface 111 can limit the locking member 3 to rotate in the folding direction to form a blocking portion, i.e. the first side surface 111 serves as a blocking portion to prevent the second rotating member 2 from rotating in the folding direction.

When the second rotating member 2 rotates in the folding direction to drive the locking portion 31 to move on the peripheral side surface of the blocking block 15, the locking portion 31 can move along the second side surface 112 of the relief groove 11 into the relief groove 11.

When the second rotating member 2 rotates in the expanding direction to drive the locking portion 31 to move on the peripheral side surface of the blocking block 15, the locking portion 31 can move along the second side surface 112 of the relief groove 11 to exit the relief groove 11.

The second side surface 112 of the yielding groove 11 provides a guide, the second rotating member 2 rotates towards the folding direction, so that the locking part 31 can enter the yielding groove 11 and can abut against the first side surface 111 of the yielding groove 11, and when the second rotating member 2 rotates towards the unfolding direction, the locking part 31 can move to exit the yielding groove 11 so as to release the limit in the folding direction, so that the second rotating member 2 can smoothly rotate to the unfolding state.

The anti-pinch folding mechanism further comprises a second elastic member 6. The second elastic piece 6 is fixedly arranged on the second rotating piece 2 and can rotate along with the second rotating piece 2 relative to the first rotating piece 1, when the second rotating piece 2 rotates to a unfolding state, the first rotating piece 1 contacts with the second elastic piece, and the second elastic piece 6 is compressed by the first rotating piece 1 and the second rotating piece 2; or, the second elastic member 6 is fixedly arranged on the first rotating member 1, when the second rotating member 2 rotates to the unfolded state, the second rotating member 2 contacts the second elastic member 6, and the second elastic member 6 is compressed by the first rotating member 1 and the second rotating member 2; when the second elastic member 6 is compressed, the restoring force of the second elastic member 6 has a tendency to drive the second rotating member 2 to rotate in the expanding direction, so that the locking portion 31 abuts against the first side 111 of the yielding groove 11.

When the second rotating member 2 rotates to the unfolding state, the second elastic member 6 can limit the second rotating member 2 to rotate continuously in the unfolding direction, and the locking part 31 is tightly abutted against the first side face 111 of the yielding groove 11, so that the second rotating member 2 can be more stably erected on the first rotating member 1 in the unfolding state, and the stability requirement of practical use is met.

The peripheral side surface of the blocking piece 15 is further provided with a guide groove 14 extending circumferentially around the rotation axis of the second rotation member 2. The second rotating member 2 is provided with a guide block 21. The second elastic member 6 is provided at one end of the guide groove 14. The guide block 21 can slide in the guide groove 14 when the second rotating member 2 rotates relative to the first rotating member 1, and the guide block 21 compresses the second elastic member 6 when the second rotating member 2 rotates to the expanded state.

When the second rotating member 2 rotates relative to the first rotating member 1, the guide block 21 slides in the guide groove 14 synchronously, and the cooperation of the guide block 21 and the guide groove 14 guides the rotation of the second rotating member 2, so that the rotation track of the second rotating member 2 is limited, and the rotation of the second rotating member 2 is more stable. When the second rotating member 2 rotates to the unfolded state, the guide block 21 compresses the second elastic member 6, and the second elastic member 6 provides a restoring force for rotating the guide block 21 in the folding direction.

The first rotation member 1 includes a first mounting portion 12 between adjacent blocking portions and a second mounting portion 13 between the guide groove 14 and the blocking portions. The first mounting portion 12 is provided with a first fixing hole 121 for fixing the first rotary member 1. The second mounting portion 13 is provided with a second fixing hole 131 for fixing the first rotary member 1. The first rotary member 1 can be stably fixed by the first fixing hole 121 and the second fixing hole 131. In the present embodiment, the first and second fixing holes 121 and 131 are engaged with the bolts 15 to fix the first rotary member 1. The locking member 3 is rotatably connected to the second rotation member 2. The first elastic member 4 drives the locking member 3 to rotate so that the locking portion 31 contacts the peripheral side surface of the blocking piece 15.

The locking member 3 is rotatably connected to the second rotating member 2, i.e. the locking member 3 is rotatable and also revolvable with the second rotating member 2 relative to the first rotating member 1. The locking piece 3 rotates under the driving of the first elastic piece 4 to enable the locking part 31 to contact the peripheral side face of the blocking piece 15, and when the locking piece 3 moves to the yielding groove 11 at the peripheral side face of the blocking piece 15 along with the rotation of the second rotating piece 2, the first elastic piece 4 drives the locking piece 3 to rotate again to enable the locking part 31 to enter the yielding groove 11. The second rotating piece 2 can synchronously drive the locking piece 3 to rotate in the unfolding direction or the folding direction, and when the locking piece 3 is in limit fit with the blocking part, the rotation of the locking piece 3 can be synchronously blocked, so that the effects of transmitting motion and positioning are achieved, and the working efficiency of the folding mechanism is improved. In other embodiments, the locking member 3 is movably connected to the second rotating member 2, and the first elastic member 4 drives the locking portion 31 to move in contact with the circumferential side surface of the blocking piece 15.

The locking member 3 includes a locking arm 32 and a driving arm 33. The lock arm 32 and the driving arm 33 are bent in a V shape, and the rotation shaft of the lock 3 is located between the lock arm 32 and the driving arm 33. The V-shaped openings of the locking arm 32 and the driving arm 33 face the first rotation member 1. The end of the locking arm 32 remote from the rotation axis is a locking portion 31. The first elastic member 4 acts on the end of the drive arm 33 remote from the rotation axis.

The locking arm 32 and the driving arm 33 are bent in a V shape, and the V-shaped opening faces the first rotating member 1, so that the locking member 3 is more compactly mounted, and miniaturization of products is facilitated. The locking portion 31 is away from the point of action of the first elastic member 4, and increases the driving force arm, so that a small force can be applied to achieve the effect of pushing the locking member 3 to rotate.

The anti-pinch folding mechanism further comprises a third elastic member 7. The third elastic member 7 acts on the unlocking member 5 to drive the unlocking member 5 to be separated from the locking member 3. The unlocking member 5 can be driven against the force of the third elastic member 7 such that the unlocking member 5 contacts the locking member 3.

The third elastic member 7 is configured to enable the unlocking member 5 and the locking member 3 to be separated in a normal state, the unlocking member 5 does not provide a force acting on the locking member 3, and in a driving state, the unlocking member 5 contacts and pushes the locking member 3 to release the limit fit, and the movement in the folding direction is continued.

In this embodiment, the unlocking member 5 is movably connected to the second rotating member 2, the unlocking member 5 includes a push rod, a pressing portion and a third elastic member 7, one end of the push rod acts on the locking member 3, the other end of the push rod extends out of the second rotating member 2 and is fixedly connected to the pressing portion, and the third elastic member 7 drives the push rod to reset. The third elastic member 7 may be a spring, which is sleeved on the push rod, and both ends of the spring act on the second rotating member 2 and the pressing portion, respectively, and drive the push rod to return when the pressing portion is pressed. In other embodiments, the unlocking member 5 is rotatably connected to the second rotating member 2, the unlocking member 5 is driven to rotate and contact the locking member 3, and the third elastic member 7 drives the unlocking member 5 to rotate reversely to be separated from the locking member 3. The first elastic member 4 and the second elastic member 6 may also be springs.

According to another aspect of the present disclosure, there is also provided an exercise apparatus including the anti-pinch folding mechanism of any one of the above embodiments, the advantage of the exercise apparatus being referred to the above embodiments of the anti-pinch folding mechanism.

Referring to fig. 1, in the present embodiment, the exercise apparatus is a rowing machine, wherein the exercise apparatus includes a main body 8 and a stand column 9, a first rotating member 1 is fixedly disposed on the main body 8, and a second rotating member 2 is fixedly disposed on the stand column 9, so that the stand column 9 is rotatably connected to the main body 8 through an anti-pinch folding mechanism. The first rotating member 1 and the main body 8 may be integrally formed or may be detachably formed. The second rotating member 2 may have an integral structure or a detachable structure.

Through above-mentioned technical scheme, this disclosure can fix a position firmly when preventing pressing from both sides folding mechanism expansion state, prevents pressing from both sides folding mechanism's second and rotates 2 and carry out spacingly when folding direction rotates, makes second rotate 2 can not just laminate with first rotation 1 in folding process once, avoids the emergence of tong phenomenon, has improved the security of preventing pressing from both sides folding mechanism use.

While the present disclosure has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration rather than of limitation. As the present disclosure may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. An anti-pinch folding mechanism, comprising:

the first rotating piece is provided with a blocking piece, and a plurality of blocking parts which are arranged at intervals are arranged on the peripheral side surface of the blocking piece;

the second rotating piece is rotatably connected with the first rotating piece;

the locking piece is movably connected to the second rotating piece and can rotate along with the second rotating piece relative to the first rotating piece, and the locking piece is provided with a locking part;

the first elastic piece acts on the locking piece to drive the locking part to contact the peripheral side surface of the blocking piece so that the locking part can be driven to move on the peripheral side surface of the blocking piece when the second rotating piece rotates relative to the first rotating piece, and when the locking part moves to the blocking part, the locking part can form limit fit with the blocking part for preventing the second rotating piece from rotating in the folding direction;

the unlocking piece can be driven to move and contact with the locking piece, so that the locking piece overcomes the acting force of the first elastic piece, and the locking part and the blocking part are in limit fit.

2. The anti-pinch fold mechanism of claim 1, wherein the barrier comprises a first barrier and a second barrier;

when the second rotating piece rotates to a unfolding state, the locking part and the first blocking part form limit fit;

when the second rotating piece rotates to be close to the folding state, the locking part and the second blocking part form limit fit.

3. The anti-pinch folding mechanism according to claim 1, wherein a plurality of spaced-apart relief grooves are further provided on the peripheral side surface of the blocking piece;

the locking part can enter the abdication groove when moving to the abdication groove on the peripheral side surface of the blocking piece, and can prop against the first side surface of the abdication groove to form limit fit for preventing the second rotating piece from rotating towards the folding direction, and the first side surface is used as the blocking part.

4. The anti-pinch folding mechanism according to claim 3, wherein when the second rotating member rotates in a folding direction to drive the locking portion to move on the peripheral side surface of the blocking piece, the locking portion can move along the second side surface of the relief groove into the relief groove;

when the second rotating piece rotates to the unfolding direction to drive the locking part to move on the peripheral side face of the blocking piece, the locking part can move along the second side face of the abdication groove to withdraw from the abdication groove.

5. The anti-pinch fold mechanism of claim 3, further comprising a second resilient member;

the second elastic piece is fixedly arranged on the second rotating piece and can rotate along with the second rotating piece relative to the first rotating piece, when the second rotating piece rotates to an unfolding state, the first rotating piece contacts with the second elastic piece, and the second elastic piece is compressed by the first rotating piece and the second rotating piece; or alternatively, the first and second heat exchangers may be,

the second elastic piece is fixedly arranged on the first rotating piece, when the second rotating piece rotates to a unfolding state, the second rotating piece contacts with the second elastic piece, and the second elastic piece is compressed by the first rotating piece and the second rotating piece;

when the second elastic piece is compressed, the restoring force of the second elastic piece has a trend of driving the second rotating piece to rotate towards the unfolding direction, so that the locking part is tightly abutted against the first side face of the abdication groove.

6. The anti-pinch folding mechanism according to claim 5, wherein a guide groove extending circumferentially around the rotation axis of the second rotation member is further provided on the circumferential side surface of the blocking piece;

the second rotating piece is provided with a guide block;

the second elastic piece is connected to one end of the guide groove;

the second rotating member rotates relative to the first rotating member, the guide block slides in the guide groove, and when the second rotating member rotates to the unfolded state, the guide block compresses the second elastic member.

7. The anti-pinch fold mechanism of claim 6, wherein the first swivel member includes a first mounting portion between adjacent ones of the blocking portions and a second mounting portion between the guide slot and the blocking portion;

the first mounting part is provided with a first fixing hole for fixing the first rotating piece;

the second mounting part is provided with a second fixing hole for fixing the first rotating part.

8. The anti-pinch fold mechanism of claim 1, wherein the locking member is rotatably coupled to the second rotating member;

the first elastic member drives the locking member to rotate so that the locking portion contacts the peripheral side surface of the first rotating member.

9. An exercise apparatus comprising the anti-pinch folding mechanism of any one of claims 1-8.

10. The exercise apparatus of claim 9, wherein the exercise apparatus is a rowing machine;

the sports equipment comprises a main body and an upright post, wherein the first rotating piece is fixedly arranged on the main body, and the second rotating piece is fixedly arranged on the upright post, so that the upright post is rotationally connected with the main body through the anti-clamping folding mechanism.