Folding structure and stair climbing machine

Abstract

The utility model relates to the field of sports equipment, and discloses a folding structure and a stair climbing machine, the folding structure comprises a plate buckle, a first pin shaft, a connecting rod, a connecting seat and a connecting piece, the connecting seat and the connecting piece are rotatably connected with each other, one end of the connecting rod is rotatably connected with the connecting seat through the first pin shaft, and the other end of the connecting rod is rotatably connected with the connecting piece; the first pin shaft is in sliding connection with the sliding groove, the plate buckle is rotationally connected with the connecting base, the plate buckle abuts against the first pin shaft to lock the first pin shaft, and when the plate buckle is pressed to unlock the first pin shaft, the first pin shaft can drive the connecting rod to slide along the sliding groove, so that the connecting piece and the connecting base are rotationally folded. According to the folding structure, one-key pressing unlocking is achieved through cooperation of the plate buckle, the connecting rod, the connecting base and the connecting piece, the structure is simple, the unlocking step is convenient and rapid, after the plate buckle is pressed by one hand to be unlocked, the connecting base is lifted upwards, the connecting piece can be close to the connecting base under the action of the gravity of the connecting piece, folding is completed, and therefore single-hand folding is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sports equipment, specifically, a folding structure and a stair climbing machine. BACKGROUND

[0002] The existing stair climbing machine folding step is more troublesome, generally is through bolt and knob cooperation, realizes locking, needs respectively to rotate the knob of machine body two sides and unlocks, more troublesome, lacks a more convenient and fast folding mode. SUMMARY

[0003] To solve at least one aspect in above-mentioned problem, the utility model provides a folding structure first, including board buckle, first pin shaft, connecting rod and each other rotation connection connecting seat and connecting piece, one end of connecting rod is through first pin shaft with connecting seat rotation connection, the other end of connecting rod is with connecting piece rotation connection, connecting seat is equipped with sliding slot, first pin shaft with sliding slot sliding connection, board buckle with connecting seat rotation connection, board buckle is suitable with first pin shaft abuts to lock first pin shaft, when pressing board buckle and unlocking first pin shaft, first pin shaft can drive connecting rod along sliding slot and slide, makes connecting piece and connecting seat rotate and fold.

[0004] Optionally, it also includes torsional spring and second pin shaft, board buckle is through second pin shaft with connecting seat rotation connection, torsional spring is set on second pin shaft, and torsional spring is used for resetting board buckle.

[0005] Optionally, the torsional spring includes a first torsional arm and a second torsional arm, the connecting seat has a limiting block protruding therefrom, the limiting block is located on a rotation path of the first torsional arm and abuts against the limiting block, and the second torsional arm abuts against an inner wall of the board buckle.

[0006] Optionally, the connecting seat and the connecting piece are rotationally connected and form a first connection point at the connection, the connecting rod and the connecting seat are rotationally connected and form a second connection point at the connection, and the connecting rod and the connecting piece are rotationally connected and form a third connection point at the connection.

[0007] Optionally, one end of the board buckle and one end of the sliding slot form a limiting cavity, and the limiting cavity is suitable for limiting the first pin shaft.

[0008] Optionally, the sliding slot has two and is respectively located on the left and right side walls of the connecting seat, both ends of the first pin shaft pass through the two sliding slots respectively, and the connecting rod has two and is respectively connected to the left and right ends of the first pin shaft.

[0009] Optionally, the folding structure further comprises a first supporting leg, a second supporting leg and a third supporting leg, the left and right ends of the connecting seat are connected with the first supporting leg and the second supporting leg respectively, and the connecting piece is connected with the third supporting leg.

[0010] Optionally, the folding structure further comprises a handrail rod, the handrail rod is connected above the third supporting leg, a latch is arranged between the handrail rod and the third supporting leg, and when the latch is pulled out, the handrail rod can be folded by rotating relative to the third supporting leg.

[0011] Optionally, the connecting seat is located between the first supporting leg and the second supporting leg, when a single hand presses the plate buckle and lifts the connecting seat upward, the third supporting leg is folded by moving close to the connecting seat under the action of gravity.

[0012] Compared with the prior art, the folding structure in the utility model realizes one-key pressing unlocking through cooperation of the plate buckle, the connecting rod, the connecting seat and the connecting piece, has simple structure, and the unlocking steps are convenient and fast; after one hand presses the plate buckle to unlock, the connecting seat is lifted upward, the connecting piece can move close to the connecting seat under the action of gravity and is folded, so that single-hand folding is realized.

[0013] In addition, the utility model provides a stair climbing machine which comprises the folding structure.

[0014] Compared with the prior art, the stair climbing machine has the same advantages as the folding structure relative to the prior art, and details are not repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Fig. 1 is a structural diagram of a stair climbing machine according to an embodiment of the utility model;

[0016] Figure 2 Fig. 2 is a right view of the stair climbing machine according to the embodiment of the utility model;

[0017] Figure 3 Fig. 3 is a left view of the stair climbing machine according to the embodiment of the utility model; Figure 2 Fig. 4 is an enlarged view of part A in Fig. 3;

[0018] Figure 4 Fig. 5 is a structural diagram of a folding structure according to an embodiment of the utility model;

[0019] Figure 5 Fig. 6 is a left view of the folding structure according to the embodiment of the utility model; Figure 4 Fig. 7 is an enlarged view of part B in Fig. 6.

[0020] DESCRIPTION OF THE DRAWINGS

[0021] 1, plate buckle; 2, first pin shaft; 3, connecting rod; 4, connecting seat; 4-1, sliding groove; 4-2, limiting block; 5, connecting piece; 6, torsional spring; 6-1, first torsional arm; 6-2, second torsional arm; 7, second pin shaft; 8, first support leg; 9, second support leg; 10, third support leg; 11, handrail rod; 11-1, bolt. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0023] The drawing of the embodiment of the utility model is provided with a coordinate system XYZ, wherein the positive direction of X axis represents left, the reverse direction of X axis represents right, the positive direction of Y axis represents front, the reverse direction of Y axis represents back, the positive direction of Z axis represents up, and the reverse direction of Z axis represents down.

[0024] The embodiment of the utility model provides a folding structure, which is combined with Figures 1-5 As shown in the figure, it comprises a plate buckle 1, a first pin shaft 2, a connecting rod 3, and a connecting seat 4 and a connecting piece 5 which are rotatably connected with each other, one end of the connecting rod 3 is rotatably connected with the connecting seat 4 through the first pin shaft 2, the other end of the connecting rod 3 is rotatably connected with the connecting piece 5, the connecting seat 4 is provided with a sliding groove 4-1, the first pin shaft 2 is slidably connected with the sliding groove 4-1, the plate buckle 1 is rotatably connected with the connecting seat 4, the plate buckle 1 is adapted to abut against the first pin shaft 2 to lock the first pin shaft 2, when the plate buckle 1 is pressed to unlock the first pin shaft 2, the first pin shaft 2 can drive the connecting rod 3 to slide along the sliding groove 4-1, so that the connecting piece 5 and the connecting seat 4 are rotated and folded.

[0025] As Figure 1 and 2 shown in the figure, in this embodiment, the connecting seat 4 and the connecting piece 5 present an included angle of 70-80 degrees in the unfolded state, the plate buckle 1 is arranged between the connecting seat 4 and the connecting piece 5, when the plate buckle 1 is pressed, the user presses one end of the plate buckle 1 towards the connecting seat 4 to unlock the first pin shaft 2 at the other end of the plate buckle 1, so that the first pin shaft 2 can slide along the sliding groove 4-1; at this time, if the connecting seat 4 or the connecting piece 5 is not moved, the connecting seat 4 and the connecting piece 5 can be kept stationary under the action of the included angle and gravity to prevent accidental folding after the plate buckle 1 is accidentally pressed.

[0026] The folding structure in the utility model realizes one-key pressing and unlocking through cooperation of the plate buckle 1, the connecting rod 3, the connecting seat 4 and the connecting piece 5, has a simple structure, and the unlocking steps are convenient and fast; after the plate buckle 1 is unlocked by pressing with one hand, the connecting seat 4 is lifted upwards, and the connecting piece 5 can be close to the connecting seat 4 under the action of its own gravity and be folded, so that single-hand folding is realized.

[0027] Optionally, a torsion spring 6 and a second pin shaft 7 are further included, the plate buckle 1 is rotationally connected with the second pin shaft 7 and the connecting seat 4, the torsion spring 6 is sleeved on the second pin shaft 7, and the torsion spring 6 is used for resetting the plate buckle 1.

[0028] As shown in Figure 4 and 5 shown, in the embodiment, the second pin shaft 7 is arranged at the middle position of the plate buckle 1, when the plate buckle 1 is pressed, the torsion arm of the torsion spring 6 is pressed and accumulates elastic force, and when the plate buckle 1 is released, the plate buckle 1 returns to the original position under the action of the elastic force of the torsion spring 6.

[0029] Optionally, the torsion spring 6 includes a first torsion arm 6-1 and a second torsion arm 6-2, a limiting block 4-2 is protruded on the connecting seat 4, the limiting block 4-2 is located on the rotation path of the first torsion arm 6-1 and is adapted to abut against the limiting block 4-2, and the second torsion arm 6-2 abuts against the inner wall of the plate buckle 1.

[0030] As shown in Figure 5 shown, in the embodiment, the limiting block 4-2 is formed by the inward protrusion of the side wall of the connecting seat 4, when the plate buckle 1 is pressed, the inner wall of the plate buckle 1 presses the second torsion arm 6-2, the second torsion arm 6-2 drives the torsion spring 6 to rotate, at this time, the first torsion arm 6-1 moves to the direction close to the limiting block 4-2 until abutting against the limiting block 4-2, after the first torsion arm 6-1 is limited between the limiting block 4-2 and the side wall of the connecting seat 4, the torsion spring 6 starts to accumulate elastic force.

[0031] Optionally, the connecting seat 4 and the connecting piece 5 are rotationally connected and a first connecting point is formed at the connection, the connecting rod 3 and the connecting seat 4 are rotationally connected and a second connecting point is formed at the connection, the connecting rod 3 and the connecting piece 5 are rotationally connected and a third connecting point is formed at the connection, and the connecting line between the first connecting point, the second connecting point and the third connecting point forms a triangle.

[0032] As shown in Figure 3 shown, in the embodiment, the first connecting point is located at the upper end of the connecting seat 4 and the connecting piece 5, when the folding is started, the first pin shaft 2 drives the second connecting point to move and slide down to the bottom end along the sliding groove 4-1 until the connecting rod 3 is approximately parallel to the sliding groove 4-1, at this time, the included angle between the connecting seat 4 and the connecting piece 5 is reduced until the folding.

[0033] Optionally, one end of the plate buckle 1 and one end of the sliding groove 4-1 form a limiting cavity, and the limiting cavity is adapted to limit the first pin shaft 2.

[0034] As shown in Figure 3 shown, when the plate buckle 1 is pressed, the end of the plate buckle 1 close to the first pin shaft 2 is raised downward, the first pin shaft 2 loses the limitation and can move along the sliding groove 4-1.

[0035] As Figure 4 shown, optionally, the sliding slot 4-1 is two and is located on the left and right side walls of the connecting seat 4 respectively, the two ends of the first pin shaft 2 pass through the two sliding slots 4-1 respectively, and the connecting rod 3 is two and is connected to the left and right ends of the first pin shaft 2 respectively, so that the structure is more stable.

[0036] Optionally, it also includes a first supporting leg 8, a second supporting leg 9 and a third supporting leg 10, the left and right ends of the connecting seat 4 are connected to the first supporting leg 8 and the second supporting leg 9 respectively, and the connecting piece 5 is connected to the third supporting leg 10.

[0037] As Figure 1 shown, in this embodiment, the first supporting leg 8 and the second supporting leg 9 are supported at the rear of the stair climbing machine, and the third supporting leg 10 is supported at the front of the stair climbing machine.

[0038] As Figure 1 shown, optionally, it also includes a handrail 11, the handrail 11 is connected above the third supporting leg 10, a bolt 11-1 is arranged between the handrail 11 and the third supporting leg 10, and when the bolt 11-1 is pulled out, the handrail 11 can be folded by rotating relative to the third supporting leg 10.

[0039] Optionally, the connecting seat 4 is located between the first supporting leg 8 and the second supporting leg 9, when a single hand presses the plate buckle 1 and lifts the connecting seat 4 upward, the third supporting leg 10 is close to the connecting seat 4 and is folded under the action of gravity.

[0040] As Figure 1 shown, in this embodiment, the user can put his hand between the first supporting leg 8 and the second supporting leg 9, press the plate buckle 1 and hold the connecting seat 4 to lift upward, so that the connecting piece 5 and the third supporting leg 10 are close to the connecting seat 4 and are folded under the action of gravity.

[0041] Another embodiment of the utility model provides a stair climbing machine which comprises the folding structure as described above.

[0042] Equivalently, the components included in the "assembly", "structure", "device" of the present disclosure can also be flexibly combined, that is, they can be modularly produced and assembled as an independent module, or they can be assembled separately and constitute a module in the device. The division of the above components in the present disclosure is only one embodiment, for the convenience of reading, and is not a limitation on the scope of protection of the present disclosure, as long as the above components are included and the same function should be understood as the equivalent technical solution of the present disclosure.

[0043] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0044] In addition, the terms "first", "second", and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0045] In the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0046] In the present disclosure, unless specifically defined and limited otherwise, a first feature "on" or "under" a second feature can be directly in contact with the second feature, or indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can be directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature "under", "below" and "underneath" the second feature can be directly below or obliquely below the second feature, or simply indicate that the first feature is lower in level than the second feature.

[0047] It should be noted that when an element is referred to as being "fixed", "disposed", "secured" or "arranged" to another element, it can be directly on the other element or there can be an intermediate element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. Further, when an element is referred to as being "fixedly connected" to another element, the two elements can be fixedly connected in a detachable manner or fixedly connected in a non-detachable manner such as by sleeving, clamping, integrally forming, welding, etc., which can be achieved in the prior art and will not be described here.

[0048] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not contradict each other, they should be considered within the scope of the present disclosure.

[0049] The above embodiments only express several implementation manners of the present disclosure, and the description is specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for those skilled in the art, without departing from the utility model concept of the present disclosure, some modifications and improvements can be made, which are within the protection scope of the present disclosure.

Claims

1. A foldable structure, characterized in that, The utility model provides a folding device, including board buckle (1), first pin shaft (2), connecting rod (3) and mutual rotation connection's connecting seat (4) and connecting piece (5), one end of connecting rod (3) is rotatedly connected with connecting seat (4) through first pin shaft (2), the other end of connecting rod (3) is rotatedly connected with connecting piece (5), be equipped with sliding slot (4-1) on connecting seat (4), first pin shaft (2) is slidably connected with sliding slot (4-1), board buckle (1) is rotatedly connected with connecting seat (4), board buckle (1) is suitable with first pin shaft (2) abut to lock first pin shaft (2), when pressing board buckle (1) and unlocking first pin shaft (2), first pin shaft (2) can drive connecting rod (3) along sliding slot (4-1) and slide, make connecting piece (5) and connecting seat (4) rotate and fold.

2. The folded structure of claim 1, wherein, Also including torsion spring (6) and second pin shaft (7), board buckle (1) is rotatedly connected through second pin shaft (7) and connecting seat (4), torsion spring (6) is set on second pin shaft (7), and torsion spring (6) is used for resetting board buckle (1).

3. The folded structure of claim 2, wherein, Torsion spring (6) includes first torsion arm (6-1) and second torsion arm (6-2), the limiting block (4-2) is protruded on the connecting seat (4), the limiting block (4-2) is located on the rotating path of the first torsion arm (6-1) and is suitable for abutting against the limiting block (4-2), the second torsion arm (6-2) abuts against the inner wall of the board buckle (1).

4. The folded structure of claim 1, wherein, Connecting seat (4) and connecting piece (5) are rotationally connected and form a first connection point at the connection, connecting rod (3) and connecting seat (4) are rotationally connected and form a second connection point at the connection, connecting rod (3) and connecting piece (5) are rotationally connected and form a third connection point at the connection, and the connecting line between the first connection point, the second connection point and the third connection point forms a triangle.

5. The folded structure of claim 1, wherein, One end of the board buckle (1) forms a limiting cavity with one end of the sliding slot (4-1), and the limiting cavity is suitable for limiting the first pin shaft (2).

6. The folded structure of claim 1, wherein, The sliding slot (4-1) has two and is located on the left and right side walls of the connecting seat (4) respectively, and the two ends of the first pin shaft (2) pass through the two sliding slots (4-1) respectively.

7. The fold structure of any of claims 1-6, wherein, It also includes a first support leg (8), a second support leg (9), and a third support leg (10), the left and right ends of the connecting seat (4) are connected to the first support leg (8) and the second support leg (9) respectively, and the connecting piece (5) is connected to the third support leg (10).

8. The folded structure of claim 7, wherein, It also includes a handrail rod (11), the handrail rod (11) is connected above the third support leg (10), a latch (11-1) is provided between the handrail rod (11) and the third support leg (10), and when the latch (11-1) is pulled out, the handrail rod (11) can be rotated and folded relative to the third support leg (10).

9. The folded structure of claim 7, wherein, The connecting seat (4) is located between the first supporting leg (8) and the second supporting leg (9), when one hand presses the plate buckle (1) and lifts the connecting seat (4) upward, the third supporting leg (10) is folded close to the connecting seat (4) under the action of gravity.

10. A stair climber characterized by, The folding structure as claimed in any one of claims 1-9.

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