Supporting leg opening and closing assembly of riding platform

Abstract

The utility model discloses a supporting leg opening and closing assembly of a riding platform, which comprises a sleeve which is clamped in a supporting leg. The sleeve is provided with an upper opening groove, and the supporting leg is provided with a limiting hole corresponding to the upper opening groove. The key is arranged in the sleeve in a sliding fit manner; the elastic piece is matched in the key; a limiting column is fixed on the elastic piece, and the limiting column extends out of and / or retracts into the limiting hole through sliding of the key; when the limiting columns extend out of the limiting holes, the supporting legs are in a locked state; when the limiting columns retract into the limiting holes, the supporting legs are in a rotatable state. The supporting leg opening and closing assembly of the riding platform can lock and unlock the rotating state of the supporting leg, so that the supporting leg cannot rotate and can rotate; when the supporting legs can rotate, switching of the opening and closing states of the supporting legs can be achieved; when the supporting legs rotate to the opening and / or closing state, the supporting legs cannot rotate, and therefore the supporting legs can maintain the stable and effective opening and / or closing state.

Description

Technical Field

[0001] The utility model relates to the technical field of trainers, and particularly relates to a leg opening and closing assembly of a trainer. Background Art

[0002] With the improvement of people's health and sports concepts, the popularity of cycling sports is increasing day by day. The sports of cycling enthusiasts are not only limited to the outdoors, but the indoor cycling demand is also gradually increasing. A trainer is one of the common fitness equipment indoors and is widely loved by people. In recent years, the foldable trainer structure has been more widely used due to its advantages such as convenient storage, small occupied space, and easy handling and transportation.

[0003] A trainer is a device that allows users to experience bicycle riding training indoors. When in use, the user matches and installs the bicycle with the trainer and then conducts a riding experience. The trainer must ensure that it will not tip over when the user makes large-amplitude movements. Therefore, the chassis legs of the trainer must have a large enough supporting footprint to ensure stability. In addition, in order to facilitate users to store the trainer when it is not in use and not occupy indoor space, most of the legs of the trainer have a folding and opening / closing function and can be retracted to reduce the occupied area.

[0004] The existing legs of the trainer can be rotated to the open or closed state. However, the legs cannot maintain a stable open or closed state, resulting in the phenomenon that the trainer is unstable and tips over during use. For this reason, it is necessary to study a component that can lock and unlock the rotation state of the legs so that the legs cannot rotate when in the open and / or closed state, in order to solve the defect that the existing legs of the trainer cannot maintain a stable open or closed state. Summary of the Invention

[0005] The purpose of the utility model is to provide a leg opening and closing assembly of a trainer, which can lock and unlock the rotation state of the legs, so that the legs cannot rotate and can rotate, thereby enabling the legs to maintain a stable and effective open and / or closed state.

[0006] To this end, the present utility model provides a leg opening and closing assembly for an exercise bike, which includes a base and two legs. The two legs are symmetrical and rotatably connected to the base, and the opening and closing of the legs are achieved by the rotation of the legs. The assembly further includes a sleeve which is snap-fitted inside the leg. The sleeve is provided with an upper opening groove, and the leg is provided with a limiting hole corresponding to the upper opening groove. There is a button which is slidably fitted inside the sleeve, and an elastic member which is fitted inside the button. A limiting post is fixed on the elastic member. By sliding the button, the limiting post extends into and / or retracts from the limiting hole. When the limiting post extends out of the limiting hole, the leg is in a locked state. When the limiting post retracts into the limiting hole, the leg is in a rotatable state.

[0007] Preferably, the base is provided with a limiting slot and a limiting engaging slot which cooperate with the limiting post. When the limiting post extends out of the limiting hole and is fitted in the limiting slot, the two legs are in an open state. When the limiting post extends out of the limiting hole and is fitted in the limiting engaging slot, the two legs are in a closed state.

[0008] Preferably, corresponding first engaging holes and second engaging holes are provided on the corresponding first side wall and second side wall of the leg, and the sleeve extends into the leg from the first engaging hole and is snap-fitted inside the leg.

[0009] Preferably, one end of the sleeve is provided with an outer snap and an inner snap. The outer snap extends out of the second engaging hole and is snap-fitted on the outside of the second side wall, and the inner snap is snap-fitted on the inside of the second side wall.

[0010] Preferably, the button includes a pressing part, and two spaced and parallel pressing arms are provided on one side of the pressing part. Matching grooves are provided on the inner sides of the two pressing arms.

[0011] Preferably, the elastic member is V-shaped and includes two symmetrically arranged elastic pieces. The two elastic pieces are respectively fitted in the two matching grooves. By sliding the button, the two elastic pieces are pressed and / or released, so that the two elastic pieces are pressed together and / or opened.

[0012] Preferably, the end of one of the elastic pieces extends out of the matching groove, and the limiting post is fixed at the extending end of the elastic piece.

[0013] Preferably, a limiting pin is provided between the two elastic pieces, and the sleeve is provided with a blocking groove which cooperates with the limiting pin. The axial direction of the limiting pin is perpendicular to the sliding direction of the button, and the limiting pin is used for limiting the sliding of the button.

[0014] Preferably, a clamping convex is provided on the outer side of the pressing arm, and a clamping groove matching with the clamping convex is provided on the inner wall of the sleeve. The clamping convex is used for limiting the sliding of the button.

[0015] Preferably, a lower opening groove is provided on the lower wall of the sleeve, and the lower opening groove corresponds to the upper opening groove; the widths of the upper opening groove, the elastic piece, and the lower opening groove decrease in sequence.

[0016] Compared with the prior art, the advantages and positive effects of the present utility model are as follows: The present utility model provides a leg opening and closing assembly for an exercise bike. The leg opening and closing assembly of the exercise bike of the present utility model can lock and unlock the rotation state of the legs, so that the legs cannot rotate and can rotate; when the legs can rotate, the switching of the opening and closing states of the legs can be realized; when the legs rotate to the open and / or closed states, the legs cannot rotate, so that the legs can maintain a stable and effective open and / or closed state. After reading the specific embodiments of the present utility model in conjunction with the accompanying drawings, other features and advantages of the present utility model will become clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of an embodiment of the leg opening and closing assembly (legs open) of the exercise bike of the present utility model;

[0018] Figure 2 is a schematic structural diagram of an embodiment of the leg opening and closing assembly (legs retracted) of the exercise bike of the present utility model;

[0019] Figure 3 is a schematic structural diagram of an embodiment of the leg opening and closing assembly (one leg retracted, one leg open) of the exercise bike of the present utility model;

[0020] Figure 4 is a schematic structural diagram of an embodiment of the base of the leg opening and closing assembly of the exercise bike of the present utility model;

[0021] Figure 5 is a schematic structural diagram of an embodiment of the leg of the leg opening and closing assembly of the exercise bike of the present utility model;

[0022] Figure 6 is a schematic structural diagram of an embodiment of the sleeve of the leg opening and closing assembly of the exercise bike of the present utility model;

[0023] Figure 7 is a schematic structural diagram of an embodiment of the sleeve of the leg opening and closing assembly of the exercise bike of the present utility model;

[0024] Figure 8 is a schematic structural diagram of an embodiment of the elastic member of the leg opening and closing assembly of the exercise bike of the present utility model;

[0025] Figure 9 It is a schematic structural diagram of an embodiment of the button of the leg opening and closing assembly of the exercise bike of the present utility model;

[0026] Figure 10 It is a schematic structural diagram of an embodiment in which the button and the elastic member cooperate when the leg can rotate;

[0027] Figure 11 It is a schematic structural diagram of an embodiment in which the button and the elastic member cooperate when the leg cannot rotate;

[0028] Figure 12 It is a schematic structural diagram of an embodiment in which the button, the elastic member and the sleeve cooperate when the leg can rotate;

[0029] Figure 13 It is a schematic cross-sectional diagram of an embodiment in which the button, the elastic member and the sleeve cooperate when the leg can rotate;

[0030] Figure 14 It is a schematic structural diagram of an embodiment in which the button, the elastic member and the sleeve cooperate when the leg cannot rotate;

[0031] Figure 15 It is a schematic cross-sectional diagram of an embodiment in which the button, the elastic member and the sleeve cooperate when the leg cannot rotate;

[0032] Figure 16 It is a schematic structural diagram of an embodiment when the leg cannot rotate;

[0033] Figure 17 It is a schematic structural diagram of an embodiment of the leg opening and closing assembly (the leg can rotate) of the exercise bike of the present utility model;

[0034] Figure 18 It is a schematic structural diagram of an embodiment of the leg opening and closing assembly (the leg cannot rotate, the left leg opens, and the right leg closes) of the exercise bike of the present utility model. Detailed implementation manners

[0035] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the following will further elaborate on the present utility model in combination with the drawings and embodiments.

[0036] Such as Figures 1 - 18As shown in the figure, the leg opening and closing assembly of the exercise bike of the present utility model includes a base 10 and two legs 20. The two legs 20 are symmetrically arranged and rotatably connected to the base 10. The legs 20 can be opened and closed by rotating the legs 20. The assembly further includes a sleeve 30 which is snap-fitted into the leg 20. An upper opening groove 31 is provided on the upper wall of the sleeve 30, and a limiting hole 21 corresponding to the upper opening groove 31 is provided on the upper wall of the leg 20. A button is slidably fitted inside the sleeve 30. An elastic member is fitted inside the button. A limiting post 41 is fixed on the elastic member. The limiting post 41 can be extended and / or retracted into the limiting hole 21 by sliding the button. When the limiting post 41 extends out of the limiting hole 21, the leg 20 cannot rotate. When the limiting post 41 retracts into the limiting hole 21, the leg 20 is in a rotatable state.

[0037] The leg opening and closing assembly of the exercise bike of the present utility model can lock and unlock the rotational state of the leg 20, enabling the leg 20 to be non-rotatable and rotatable. When the leg 20 is rotatable, the opening and closing state of the leg 20 can be switched. When the leg rotates to the open and / or closed state, the leg 20 can be made non-rotatable, so that the leg 20 can maintain a stable and effective open and / or closed state.

[0038] In this embodiment, two symmetrically arranged limiting grooves 12 and two symmetrically arranged limiting slots 13 are provided at the edge of the upper wall 11 of the base plate 10. The included angle between the axial extension lines of the two symmetrically arranged limiting grooves 12 is an obtuse angle, and the opening directions of the two limiting slots 13 are parallel. During the rotation of the leg 20, the limiting post 41 can rotate along the edge of the upper wall 11.

[0039] Press the button to slide it, which can retract the limiting post 41 into the limiting hole 21, making the leg 20 rotatable. When the leg 20 is rotated until the limiting post 41 is engaged in the limiting groove 12, the included angle between the two legs 20 is an obtuse angle, and the two legs 20 are in an open state (as shown in Figure 1 the figure). At this time, release the button. Under the elastic force of the elastic member, the button slides in the reverse direction, which can make the limiting post 41 extend out of the limiting hole 21. The limiting post 41 is stably engaged in the limiting groove 12, which can limit and lock the leg 20, and the leg 20 cannot rotate, so that the leg 20 can maintain a stable and effective open state.

[0040] Press the button to slide it, which can retract the limiting post 41 into the limiting hole 21, making the leg 20 rotatable. When the leg 20 is rotated until the limiting post 41 is engaged in the limiting slot 13, the two legs 20 are parallel, and the two legs 20 are in a closed state (as shown in Figure 2As shown. At this time, release the button, and under the elastic force of the elastic member, the button slides in the reverse direction, so that the limiting post 41 extends out of the limiting hole 21. The limiting post 41 is stably fitted in the limiting groove 13, which can play a role in limiting and locking the leg 20, and the leg 20 cannot rotate, so that the leg 20 can maintain a stable and effective closed state.

[0041] The leg 20 is a one-piece member and can be integrally formed by a processing technology, making the structure of the leg 20 firm and reliable and having a long service life.

[0042] The leg 20 has a rectangular parallelepiped-shaped hollow structure. Corresponding first engaging holes 24 and second engaging holes 25 are provided on the corresponding first side wall 22 and second side wall 23 of the leg 20. The sleeve 30 extends into the leg 20 from the first engaging hole 24 and is engaged therein.

[0043] One end of the sleeve 30 is provided with an outer buckle 32 and an inner buckle 33. The outer buckle 32 extends out of the second engaging hole 25 and is engaged on the outside of the second side wall 23, and the inner buckle 33 is engaged on the inside of the second side wall 23, so that the sleeve 30 can be engaged in the leg 20.

[0044] In this embodiment, outer buckles 32 are provided on both the upper wall and the lower wall of the sleeve 30, and the number of inner buckles 33 is two. The two inner buckles 33 are respectively provided on the outside of the two corresponding side walls of the sleeve 30; the axes of the outer buckle 32 and the inner buckle 33 are perpendicular to each other, so that the second side wall 23 can be engaged and fixed in two perpendicular directions, making the second side wall 23 stably and effectively engaged and fixed between the outer buckle 32 and the inner buckle 32.

[0045] In this embodiment, the distance L between the outer buckle 32 and the inner buckle 32 is equal to the thickness of the second side wall 23, so that the second side wall 23 can be stably engaged and fixed between the outer buckle 32 and the inner buckle 32, and further the sleeve 30 can be stably engaged and fixed in the leg 20.

[0046] The sleeve 30 is a one-piece member and can be integrally formed by a processing technology, making the button structure firm and reliable and having a long service life. The sleeve 30 has a rectangular parallelepiped-shaped hollow structure, and both ends of the sleeve 30 are open, and the opening direction is parallel to the sliding

[0047] direction of the button. An upper opening groove 31 is provided on the upper wall of the sleeve 30, and a lower opening groove 34 is provided on the lower wall of the sleeve 30. The lower opening groove 34 corresponds to the upper opening groove 31; by providing opening grooves on the upper wall and the lower wall of the sleeve 30 and both ends of the sleeve 30 being open, the sleeve 30 can be easily deformed, so that it is convenient to squeeze the sleeve 30 to insert the sleeve 30 into the first engaging hole 24 and the second engaging hole 25.

[0048] The elastic member is a single-piece part and can be integrally formed by a processing technology, making the structure of the elastic member stable and reliable and having a long service life.

[0049] The elastic member is V-shaped and includes two symmetrically arranged elastic pieces 42. The two elastic pieces 42 can be compressed and closed, and under the action of elastic force, the two elastic pieces 42 can open and reset. Connection pieces 43 extend from the ends of both elastic pieces 42. The connection pieces 43 are made of the same material as the elastic pieces 42, and the connection pieces 43 also have elasticity. The connection pieces 43 and the elastic pieces 42 are single-piece parts and can be integrally formed by a processing technology, and no specific limitation is made here.

[0050] The elastic member is fitted inside the sleeve 30. The two elastic pieces 42 are arranged one above the other. The connection piece 43 at the end of the upper elastic piece 42 corresponds to the upper opening groove 31, and the connection piece 43 at the end of the lower elastic piece 42 corresponds to the lower opening groove 34. The limit post 41 is fixed on the upper connection piece 43, and the axial direction of the limit post 41 is perpendicular to the sliding direction of the key. The fixing method of the limit post 41 can be a common fixing method in this technical field, and no specific limitation is made here.

[0051] The width of the connection piece 43 is smaller than the width of the upper opening groove 31, which enables the upper connection piece 43 to extend out of or retract into the upper opening groove 31, thereby avoiding the upper opening groove 31 from hindering the limit post 41 and ensuring that the limit post 41 can effectively extend out of or retract into the limit hole 21 through the upper opening groove 31. The width of the connection piece 43 is larger than the width of the lower opening groove 34, thereby preventing the lower elastic piece 42 from falling off and disengaging from the lower opening groove 34.

[0052] The key is a single-piece part and can be integrally formed by a processing technology, making the structure of the key stable and reliable and having a long service life.

[0053] The key has a symmetric structure and includes a pressing part 51. The pressing part 51 can be a circular plate. Two spaced and parallel pressing arms 52 are provided on one side of the pressing part 51, and fitting grooves 53 are provided on the inner sides of both pressing arms 52.

[0054] The key extends into and fits inside the sleeve 30. The two pressing arms 53 are arranged parallel to each other with a space therebetween. The two elastic pieces 42 are located between the two pressing arms 52, and the two elastic pieces 42 are respectively fitted in the two fitting grooves 53, and the connection pieces 43 at the ends of the two elastic pieces 42 both extend out of the fitting grooves 53.

[0055] When the key slides into the leg 20, the two pressing arms 52 respectively press the two elastic pieces 42, enabling the two elastic pieces 42 to approach and press together, thereby driving the limit post 41 to move downward and enabling the limit post 41 to retract into the limit hole 21.

[0056] Under the elastic force of the two elastic pieces 42, the key can slide outward toward the leg 20. The two pressing arms 52 can release the two elastic pieces 42 respectively, so that the two elastic pieces 42 can open and reset; the lower elastic piece 42 moves downward, and the upper elastic piece 42 moves upward, so as to drive the limit post 41 to move upward, so that the limit post 41 can extend out of the limit hole 21.

[0057] The two elastic pieces 42 are respectively fitted in the two fitting grooves 53, which can limit the elastic pieces 42 to prevent the elastic pieces 42 from detaching from the two pressing arms 52 during the pressing and opening / resetting process.

[0058] The two elastic pieces 42 are connected by an arc-shaped piece 44. A limit pin 45 is fitted on the inner side of the arc-shaped piece 44. The axial direction of the limit pin 45 is perpendicular to the sliding direction of the key. The other end of the sleeve 30 is provided with two retaining grooves 35 that cooperate with the limit pin 45, and the limit pin 45 can be fixed in the two retaining grooves 35.

[0059] One side of the pressing part 51 is also provided with a limit boss 55, and the limit boss 55 is located between the two pressing arms 52. When the key slides into the sleeve 30 until the limit boss 55 contacts the limit pin 45, the key can no longer slide, and the sliding distance of the key can be restricted.

[0060] The outer side of the pressing arm 52 is provided with a clamping protrusion 54, and the inner wall of the sleeve 30 is provided with a clamping groove 36 that cooperates with the clamping protrusion 54. The clamping protrusion 54 is used to limit the sliding of the key and can effectively prevent the key from detaching from the sleeve 30.

[0061] In this embodiment, a rotating shaft 14 is provided between the base 10 and the leg 20. The rotating shaft 14 is fixed on the base 10, and the leg 20 can rotate around the rotating shaft 14. The axial direction of the rotating shaft 14 is perpendicular to the sliding direction of the key. The rotating shaft 14 is fixed on the base 10 in a common manner in the art, and no specific limitation is made here.

[0062] When pressing the pressing part 51 to make the key slide into the leg 20, the two pressing arms 52 can press the two elastic pieces 42 respectively, so that the two elastic pieces 42 can approach and press together, thereby driving the limit post 41 to move downward, so that the limit post 41 can retract into the limit hole 21. Thus, the leg 20 can be unlocked, and the leg 20 can rotate; by rotating the leg 20, the switching of the opening and closing states of the leg 20 can be realized.

[0063] When the outrigger 20 is rotated to the open and / or closed state, release the pressing part 51. Under the elastic force of the two elastic pieces 42, the key can slide outward relative to the outrigger 20. The two pressing arms 52 release the two elastic pieces 42 respectively, enabling the two elastic pieces 42 to open and reset. Among them, the lower elastic piece 42 moves downward and the upper elastic piece 42 moves upward, thereby driving the limit post 41 to move upward, allowing the limit post 41 to extend out of the limit hole 21, so that the outrigger 20 can maintain an effective open and / or closed state.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, for those of ordinary skill in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions required to be protected by the present invention.

Claims

1. A leg opening and closing assembly of a bike trainer, comprising a base and two legs. The two legs are symmetric and rotatably connected to the base, and the opening and closing of the legs are realized by the rotation of the legs. It is characterized in that It further includes a sleeve which is clamped inside the leg; the sleeve is provided with an upper opening groove, and the leg is provided with a limiting hole corresponding to the upper opening groove; a button which is slidably fitted inside the sleeve; an elastic member which is fitted inside the button; a limiting post is fixed on the elastic member, and the limiting post extends out of and / or retracts into the limiting hole by sliding the button; when the limiting post extends out of the limiting hole, the leg is in a locked state; when the limiting post retracts into the limiting hole, the leg is in a rotatable state.

2. The leg opening and closing assembly of the trainer according to claim 1, wherein the base is provided with a limiting slot and a limiting engaging slot which are engaged with the limiting post; when the limiting post extends out of the limiting hole and is engaged in the limiting slot, the two legs are in an open state; when the limiting post extends out of the limiting hole and is engaged in the limiting engaging slot, the two legs are in a closed state.

3. The leg opening and closing assembly of the trainer according to claim 1, wherein corresponding first engaging holes and second engaging holes are provided on the corresponding first side wall and second side wall of the leg, and the sleeve extends into the leg from the first engaging hole and is clamped inside the leg.

4. The leg opening and closing assembly of the trainer according to claim 3, wherein one end of the sleeve is provided with an outer buckle and an inner buckle, the outer buckle extends out of the second engaging hole and is clamped outside the second side wall, and the inner buckle is clamped inside the second side wall.

5. The leg opening and closing assembly of the trainer according to claim 1, wherein the button includes a pressing portion, and two spaced and parallel pressing arms are provided on one side of the pressing portion, and engaging grooves are provided on the inner sides of the two pressing arms.

6. The leg opening and closing assembly of the trainer according to claim 4, wherein the elastic member is V-shaped and includes two symmetrically arranged elastic pieces, and the two elastic pieces are respectively fitted in the two engaging grooves; by sliding the button, the two elastic pieces are pressed and / or released, so that the two elastic pieces are pressed together and / or opened.

7. The leg opening and closing assembly of the trainer according to claim 6, wherein the end of one of the elastic pieces extends out of the engaging groove, and the limiting post is fixed at the extending end of the elastic piece.

8. The leg opening and closing assembly of the trainer according to claim 6, wherein a limiting pin is provided between the two elastic pieces, and the sleeve is provided with a retaining groove which is engaged with the limiting pin; the axial direction of the limiting pin is perpendicular to the sliding direction of the button, and the limiting pin is used for limiting the sliding of the button.

9. The leg opening and closing assembly of the trainer according to claim 5, wherein a engaging convex is provided on the outer side of the pressing arm, and the inner wall of the sleeve is provided with a engaging groove which is engaged with the engaging convex, and the engaging convex is used for limiting the sliding of the button.

10. The leg opening and closing assembly of the trainer according to claim 6, wherein The lower wall of the sleeve is provided with a lower opening groove, and the lower opening groove corresponds to the upper opening groove; The widths of the upper opening groove, the elastic piece, and the lower opening groove decrease in sequence.

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