Lifting device and walking machine thereof

Abstract

The utility model discloses a lifting device and a walking machine thereof, and belongs to the technical field of sports equipment. The lifting device comprises a bearing assembly and a sliding assembly. The sliding assembly is movably connected with the bearing assembly, the bearing assembly is provided with the first limiting piece, and when the sliding assembly slides to the designated position in the target direction, the second limiting piece in the sliding assembly is connected with the first limiting piece in the bearing assembly in a clamped mode. Thus, through clamping connection of the first limiting piece and the second limiting piece, the stroke distance of relative movement of the bearing assembly and the sliding assembly can be accurately controlled, the telescopic degree of the lifting device is accurately controlled, and therefore the inclination angle of the treadmill support is accurately controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of exercise equipment, especially a lifting device and a treadmill. BACKGROUND

[0002] With the continuous development of science and technology, more and more fitness equipment is applied to the work and life of consumers. At present, household fitness equipment usually includes treadmills, rhythm machines, and spinning bikes, among which, the treadmill is a device that can be used for indoor running or walking exercise. The rhythm of the treadmill is relatively stable when it is running, and the impact on the user's body is relatively small, so it is suitable for long-term use.

[0003] The treadmill usually drives a rolling running belt by a motor to simulate the feeling of outdoor walking or running to help users perform aerobic training, improve heart and lung function, burn fat, and shape legs. The treadmill mainly consists of a running belt, a treadmill support, a motor, and a roller assembly. Since the road slope usually changes when the user exercises outdoors, most users of the treadmill have the use demand of simulating walking at different slopes. Most lifting devices on the market are driven by lifting motors, which are high in cost and difficult to repair after failure. Therefore, there is an urgent need for a simple structure that can adjust the slope angle of the treadmill. SUMMARY

[0004] The utility model embodiment provides a kind of lifting device and its treadmill. It can solve the problem that the prior art needs a simple structure, and the slope angle of the treadmill can be adjusted without motor driving to realize the use demand of simulating walking at different slopes by the technical solution as follows:

[0005] According to one aspect of the utility model, a lifting device is provided, which comprises:

[0006] A bearing assembly has a first limiting piece, and the bearing assembly is used to connect the treadmill support.

[0007] A sliding assembly is movably connected with the bearing assembly, and the sliding assembly and the bearing assembly can slide relative to each other along a target direction intersecting the ground. The sliding assembly has a second limiting piece configured to be engaged with the first limiting piece in the bearing assembly when the sliding assembly slides to a specified position along the target direction.

[0008] Optionally, the first limiting piece includes a limiting slot.

[0009] The second limiting member includes a rotating buckle and a positioning part. The limiting groove and the positioning part are arranged adjacent to each other, and the rotating buckle is located on the side of the positioning part away from the ground.

[0010] When the sliding component slides along the target direction, the rotating buckle is located outside the limiting groove. When the sliding component slides along the target direction to the designated position, the end of the rotating buckle is inserted into the limiting groove and abuts against the positioning part.

[0011] Optionally, the sliding assembly further includes a sliding frame, and the rotating buckle includes: a rotating shaft, a locking part, and an elastic part;

[0012] The rotating shaft is fixedly connected to the sliding frame.

[0013] The first end of the snap-fit ​​part is rotatably connected to the rotating shaft, and the second end of the snap-fit ​​part can be inserted into the limiting groove;

[0014] The first end of the elastic part is connected to the portion between the first end and the second end of the snap-fit ​​part, the second end of the elastic part is fixedly connected to the sliding frame, and the second end of the elastic part is located on the side of the first end of the elastic part closer to the ground.

[0015] Optionally, the rotating buckle further includes a guide portion, and the bearing assembly has a disengagement guide and a reset guide at both ends in the target direction;

[0016] The guide portion is fixedly connected to the portion between the first and second ends of the snap-fit ​​portion;

[0017] The disengagement guide is located on the side of the reset guide closer to the ground. The disengagement guide is configured to: when the sliding assembly slides toward the ground along the target direction, drive the guide portion and the locking portion to rotate toward a direction away from the limiting groove.

[0018] The reset guide is configured to drive the guide portion and the locking portion to rotate toward the direction close to the limiting groove when the sliding assembly slides away from the ground along the target direction.

[0019] Optionally, the support assembly further includes a support frame, which includes two opposing first plates and two opposing second plates, the two first plates and the two second plates being connected sequentially to form a receiving cavity;

[0020] The sliding component is located in the receiving cavity;

[0021] The limiting groove is located on the first plate, and the disengagement guide and the reset guide are both located in the receiving cavity and are fixedly connected to the second plate.

[0022] Optionally, the disengagement guide includes a first guide bar, and the reset guide includes a second guide bar;

[0023] The extension directions of the first guide bar and the second guide bar both have an acute angle with the target direction, and the ends of the first guide bar and the second guide bar that are away from the ground are closer to the limiting groove.

[0024] The guide portion moves between the first guide bar and the second guide bar.

[0025] Optionally, the end of the bearing component near the ground has a third limiting member, and the end of the sliding component away from the ground has a fourth limiting member;

[0026] When the sliding component slides from the end away from the ground to the position of the bearing component near the ground, the third limiting member abuts against the fourth limiting member.

[0027] Optionally, the lifting device further includes a position sensor located outside the limiting groove, which is used to detect whether the rotating buckle is inserted into the limiting groove.

[0028] Optionally, the lifting device further includes a support base and a mounting bracket;

[0029] The support base is fixedly connected to the sliding component, and the mounting bracket is fixedly connected to the load-bearing component and the running platform bracket respectively.

[0030] According to another aspect of the present invention, a walking machine is provided, the walking machine including the above-described lifting device.

[0031] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following:

[0032] A lifting device comprising a support component and a sliding component is provided. The sliding component and the support component are movably connected, and the support component has at least one first limiting member. When the sliding component slides to a designated position along a target direction, a second limiting member in the sliding component engages with the first limiting member in the support component. Thus, by engaging the first and second limiting members, the relative travel distance between the support component and the sliding component can be accurately controlled, thereby accurately controlling the extension and retraction of the lifting device and consequently accurately controlling the tilt angle of the treadmill support. This structure is ingenious and simple to operate, solving the urgent need in the prior art for a simple structure that can adjust the incline angle of a walking machine without the need for a motor, thus meeting the user's need to simulate walking at different inclines and improving the applicability of the walking machine. A further technical solution incorporates a position sensor to detect the lifting angle of the walking machine and transmit the data to a control terminal for data display and recording on the display terminal. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of a lifting device shown in an embodiment of this utility model;

[0035] Figure 2 This is a schematic diagram of the structure of a load-bearing component and a sliding component shown in an embodiment of the present invention;

[0036] Figure 3 yes Figure 2 The exploded structural diagram of the load-bearing component and the sliding component is shown.

[0037] Figure 4 This is a schematic diagram of the internal structure of a lifting device provided in an embodiment of this utility model;

[0038] Figure 5 This is a schematic diagram of the internal structure of another lifting device provided in an embodiment of this utility model;

[0039] Figure 6 yes Figure 5 A cross-sectional schematic diagram of the internal structure of the lifting device shown;

[0040] Figure 7 This is an exploded structural diagram of a sliding component provided in an embodiment of the present invention;

[0041] Figure 8 This is an exploded structural diagram of a load-bearing component provided in an embodiment of this utility model;

[0042] Figure 9 This is a schematic diagram of the structure of another lifting device provided in this embodiment of the utility model;

[0043] Figure 10 This is a schematic diagram of another lifting device provided in an embodiment of the present invention. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0045] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0046] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0047] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0048] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the structure of a lifting device 10 according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a bearing component 11 and a sliding component 12 according to an embodiment of the present invention. Figure 3 yes Figure 2 The diagram shows an exploded view of the supporting component 11 and the sliding component 12. The lifting device 10 may include: the supporting component 11 and the sliding component 12.

[0049] The load-bearing component 11 can be used to connect to the treadmill support. The load-bearing component 11 can be fixedly connected to one end of the treadmill support, or one end of the treadmill support can be installed on the end of the load-bearing component 11 away from the ground.

[0050] The sliding component 12 can be movably connected to the supporting component 11, and the sliding component 12 and the supporting component 11 can slide relative to each other along a target direction, which intersects the ground. For example, the target direction includes a direction perpendicular to the ground. By sliding the sliding component 12 and the supporting component 11, the supporting component 11 can slide relative to the sliding component 12, or the sliding component 12 can slide relative to the supporting component 11, thereby enabling the lifting device 10 to extend and retract in a direction perpendicular to the ground. This allows the lifting device 10 to lift or lower one end of the treadmill support in a direction perpendicular to the ground, thus changing the angle between the treadmill support and the ground. For example, the supporting component 11 can slide relative to the sliding component 12 in a direction away from the ground to increase the overall height of the lifting device 10, thereby increasing the distance between one end of the treadmill support and the ground. The supporting component 11 can also slide relative to the sliding component 12 in a direction closer to the ground to decrease the overall height of the lifting device 10, thereby decreasing the distance between one end of the treadmill support and the ground.

[0051] The supporting component 11 may have a first limiting member 111, or have a plurality of first limiting members 111 arranged along the target direction. The sliding component 12 may have a second limiting member 121. The second limiting member 121 is configured to engage with one of the first limiting members 111 in the supporting component 11 when the sliding component 12 slides to a specified position along the target direction.

[0052] Please continue to refer to this. Figure 4 , Figure 4 This is a schematic diagram of the internal structure of a lifting device 10 provided in an embodiment of the present invention. Figure 4 The second limiting member 121 in the sliding component 12 can engage with one of the first limiting members 111 in the supporting component 11. The sliding component 12 can slide relative to the supporting component 11 along the target direction between multiple designated positions, and the multiple designated positions can correspond one-to-one with multiple first limiting members 111. When the sliding component 12 slides to any designated position along the target direction, the second limiting member 121 in the sliding component 12 can engage with the first limiting member 111 corresponding to that designated position to lock the supporting component 11 and the sliding component 12 at the current position. For example, the number of first limiting members 111 can be 1, 2, 3, 4 or more, and this embodiment of the present invention does not limit this.

[0053] By engaging the first limiting member 111 and the second limiting member 121, the bearing component 11 and the sliding component 12 can be locked at a designated position. This prevents the bearing component 11 from moving relative to the sliding component 12 after the sliding component 12 has slid to the designated position in a direction perpendicular to the ground. This improves the stability of the lifting device 10, allowing the raised lifting device 10 to provide stable support for the running platform support.

[0054] Furthermore, since multiple first limiting members 111 can be arranged along the target direction, the relative travel distance of the bearing component 11 and the sliding component 121 can be accurately controlled by the first limiting member 111 and the second limiting member 121 engaging, so as to accurately control the extension and retraction of the lifting device 10, thereby accurately controlling the tilt angle of the running platform support.

[0055] In this embodiment of the invention, the angle between the treadmill support and the ground can be adjusted by the lifting device 10, thereby adjusting the incline of the treadmill, which includes the lifting device 10 and the treadmill support. This allows the treadmill to simulate various outdoor sports scenarios through incline adjustment and to adjust the exercise intensity through multiple incline levels, providing users with a diverse exercise experience. Furthermore, when the treadmill is not in use, the lifting device 10 can be lowered to reduce the overall space occupied by the treadmill, making it easier for users to store the treadmill.

[0056] In summary, this utility model embodiment provides a lifting device 10 including a supporting component 11 and a sliding component 12. The sliding component 12 and the supporting component 11 are movably connected, and the supporting component 11 has at least one first limiting member 111. When the sliding component 12 slides to a designated position along the target direction, the second limiting member 121 in the sliding component 12 engages with the first limiting member 111 in the supporting component 11. Thus, by engaging the first limiting member 111 and the second limiting member 121, the relative travel distance of the supporting component 11 and the sliding component 12 can be accurately controlled, thereby accurately controlling the extension and retraction of the lifting device 10, and thus accurately controlling the tilt angle of the treadmill support. This structure is ingenious and easy to operate, solving the problem of the prior art's urgent need for a simple structure that can adjust the incline angle of a walking machine without the need for a motor, so as to meet the user's needs for simulating walking at different inclines, and achieving the effect of improving the applicability of the walking machine.

[0057] Please refer to Figure 3 and Figure 4 In one optional embodiment, the first limiting member 111 may include a limiting groove c1; the second limiting member 121 may include a rotating buckle 1211 and a positioning part 1212, the limiting groove c1 and the positioning part 1212 are arranged adjacent to each other, and the rotating buckle 1211 is located on the side of the positioning part 1212 away from the ground.

[0058] Please refer to Figure 5 , Figure 6 and Figure 7 , Figure 5 This is a schematic diagram of the internal structure of another lifting device 10 provided in this embodiment of the present invention. Figure 6 yes Figure 5 The diagram shows a cross-sectional view of the internal structure of the lifting device 10. Figure 7 This is an exploded structural diagram of a sliding component 12 provided in an embodiment of the present invention. Figure 5 The lifting device 10 is in a state where the sliding component 12 slides to the designated position and the end of the rotating buckle 1211 is inserted into the limiting groove c1.

[0059] When the sliding component 12 slides along the target direction, the rotating buckle 1211 is located outside the limiting groove c1, and the rotating buckle 1211 is separated from the positioning part 1212, which can prevent the rotating buckle 1211 from hindering the relative sliding between the sliding component 12 and the bearing component 11.

[0060] When the sliding component 12 slides to the designated position along the target direction, the end of the rotating buckle 1211 is inserted into the limiting groove c1 and abuts against the positioning part 1212 to limit the sliding component 12 and the bearing component 11 and prevent the sliding component 12 and the bearing component 11 from continuing to slide.

[0061] It is understandable that, such as Figure 6 As shown, when the end of the rotating buckle 1211 is inserted into the limiting groove c1, since the end of the bearing assembly 11 away from the ground supports the running platform bracket, the running platform bracket applies pressure towards the ground to the bearing assembly 11. This allows the bearing assembly 11 to apply pressure towards the ground to the rotating buckle 1211 located in the limiting groove c1. Simultaneously, the positioning part 1212 in the sliding assembly 12 applies a supporting force away from the ground to the rotating buckle 1211. Thus, when a load is applied to the bearing assembly 11 from above, due to the relative sliding tendency between the bearing assembly 11 and the sliding assembly 12, the groove wall of the limiting groove c1 in the bearing assembly 11 and the positioning part 1212 in the sliding assembly 12 can clamp the rotating buckle 1211, preventing it from rotating counterclockwise and dislodging from the limiting groove c1. This makes the rotating buckle 1211 difficult to rotate, achieving the limiting function.

[0062] Please refer to Figure 5 , Figure 6 and Figure 7 In an optional embodiment, the sliding component 12 may further include a sliding frame 122, and a rotating buckle 1211 is mounted on the sliding frame 122. The rotating buckle 1211 may include a rotating shaft k1, a snap-fit ​​portion k2, and an elastic portion k3.

[0063] The rotating shaft k1 can be fixedly connected to the sliding frame 122. The first end of the snap-fit ​​part k2 is rotatably connected to the rotating shaft k1, and the second end of the snap-fit ​​part k2 can be inserted into the limiting groove c1. The first end of the elastic part k3 is connected to the part between the first end and the second end of the snap-fit ​​part k2. The second end of the elastic part k3 is fixedly connected to the sliding frame 122, and the second end of the elastic part k3 is located on the side of the first end of the elastic part k3 that is close to the ground.

[0064] In one exemplary embodiment, the sliding frame 122 may include a third plate b3 and two side plates b4 located on both sides of the third plate b3. The two side plates b4 may be arranged opposite to each other and are both connected to the third plate b3. The surface of the third plate b3 is perpendicular to the surface of either side plate b4. A rotating buckle 1211 may be installed on the third plate b3. For example, the rotating shaft k1 in the rotating buckle 1211 may be fixedly connected to the third plate b3, and the end of the elastic part k3 away from the locking part k2 may also be fixedly connected to the third plate b3.

[0065] When the sliding component 12 slides along the target direction, the locking part k2 in the rotating buckle 1211 can rotate counterclockwise and disengage from the limiting groove c1 to be located outside the limiting groove c1. At this time, the elastic part k3 can be in a stretched state so as to apply a pulling force toward the ground to the locking part k2, thereby preventing the locking part k2 from continuing to rotate counterclockwise. Furthermore, when the locking part k2 moves with the sliding frame 122 to the next limiting groove c1, the locking part k2 can be inserted into the limiting groove c1 under the pulling force of the elastic part k3.

[0066] Please refer to Figure 5 , Figure 6 and Figure 7 In one exemplary embodiment, the positioning part 1212 can be disposed on the side plate b4 or on the third plate b3. For example, the positioning part 1212 may include a positioning groove c2 on the side plate b4. The positioning groove c2 has an opening on the side away from the ground. When the engaging part k2 is inserted into the limiting groove c1, the engaging part k2 can also be inserted into the positioning groove c2. At this time, the limiting groove c1 and the positioning groove c2 are arranged adjacent to each other, and the side wall of the limiting groove c1 and the bottom of the positioning groove c2 can apply opposite pressures to the engaging part k2 to clamp it. When the engaging part k2 moves to the next limiting groove c1 with the sliding frame 122, the opening on the positioning groove c2 can prevent the positioning groove c2 from blocking the clockwise rotation of the engaging part k2, thereby preventing the engaging part k2 from being unable to disengage from the limiting groove c1 and the positioning groove c2.

[0067] Please refer to Figure 2 , Figure 3 and Figure 8 , Figure 8This is an exploded structural diagram of a support component 11 provided in an embodiment of the present invention. In an optional embodiment, the support component 11 may further include a support frame 112, which includes two opposing first plates b1 and two opposing second plates b2. The two first plates b1 and the two second plates b2 are connected sequentially to form a receiving cavity; the sliding component 12 is located in the receiving cavity.

[0068] The limiting groove c1 is located on the first plate b1. The two first plates b1 and the two second plates b2 are connected in sequence to form a quadrilateral frame, which may include a rectangular frame.

[0069] Please refer to Figure 5 , Figure 7 and Figure 8 The two sliding frames 122 can be arranged parallel to and adjacent to the two first plates b1 of the bearing frame 112, respectively. The third plate b3 of the sliding frame 122 and one of the second plates b2 of the bearing frame 112 can be arranged parallel to and adjacent to each other.

[0070] The sliding frame 122 can slide in the receiving cavity of the bearing frame 112 in a direction perpendicular to the ground. Thus, through the cooperation of the sliding frame 122 and the bearing frame 112, the extension and retraction directions of the bearing component 11 and the sliding component 12 can always be parallel to the target direction.

[0071] Please refer to Figure 3 The second plate b2 in the supporting frame 112 that is adjacent to the third plate b3 in the sliding frame 122 may have two protrusions t1. The third plate b3 may contact the two protrusions t1 on the adjacent second plate b2 to reduce the friction between the adjacent third plate b3 and the second plate b2 during the relative sliding process.

[0072] Please refer to Figure 7 , Figure 8 and Figure 9 , Figure 9 This is a schematic diagram of the structure of another lifting device 10 provided in an embodiment of the present utility model. In an optional embodiment, the rotating buckle 1211 may further include a guide part k4. The guide part k4 is fixedly connected to the part between the first end and the second end of the snap-fit ​​part k2. That is, the guide part k4 may be fixedly disposed on the snap-fit ​​part k2. For example, the snap-fit ​​part k2 includes a plate-shaped snap-fit ​​block, and the guide part k4 includes a column-shaped guide post.

[0073] The support assembly 11 also has a disengagement guide 113 and a reset guide 114 at both ends in the target direction, with the disengagement guide 113 located on the side of the reset guide 114 closer to the ground. Both the disengagement guide 113 and the reset guide 114 are located in the receiving cavity and are fixedly connected to the second plate b2.

[0074] The detachment guide 113 is configured to rotate the guide part k4 and the locking part k2 away from the limiting groove c1 when the sliding assembly 12 slides towards the ground in the target direction; the reset guide 114 is configured to rotate the guide part k4 and the locking part k2 towards the limiting groove c1 when the sliding assembly 12 slides away from the ground in the target direction.

[0075] Thus, when the rotating latch 1211 in the sliding assembly 12 is inserted into the lowest limiting groove c1 of the bearing assembly 11, and the sliding assembly 12 continues to slide away from the bearing assembly 11, the rotating latch 1211 can disengage from the lowest limiting groove c1. At this time, the disengagement guide 113 can contact the guide part k4, and through the guide part k4, drive the locking part k2 to rotate clockwise, so as to rotate away from the limiting groove c1. In this way, the limiting effect of the locking part k2 can be released, so that the sliding assembly 12 and the bearing assembly 11 can slide relative to each other along the target direction. When the sliding assembly 12 slides along the target direction to the position that coincides with the bearing assembly 11, the reset guide 114 can contact the guide part k4, and through the guide part k4, drive the locking part k2 to rotate counterclockwise, so as to rotate towards the limiting groove c1, so as to reset the locking part k2.

[0076] Please refer to Figure 3 , Figure 8 and Figure 9 In one optional embodiment, the disengagement guide 113 may include a first guide bar 1131, and the resetting guide 114 may include a second guide bar 1141. The extension directions of both the first guide bar 1131 and the second guide bar 1141 form an acute angle with the target direction, and the ends of both the first guide bar 1131 and the second guide bar 1141 furthest from the ground are closer to the limiting groove c1. The guide portion k4 moves between the first guide bar 1131 and the second guide bar 1141; that is, the guide portion k4 can move between the first guide bar 1131 and the second guide bar 1141.

[0077] For example, the target direction includes a first direction and a second direction. The first direction is the direction pointing towards the ground, and the second direction is the direction away from the ground. When the rotating latch 1211 in the sliding component 12 is inserted into the lowermost limiting groove c1 of the bearing component 11, and the sliding component 12 continues to slide along the first direction, the rotating latch 1211 can be disengaged from the lowermost limiting groove c1. At this time, as...Figure 9 As shown, the guide part k4 in the rotating buckle 1211 can contact the side of the first guide bar 1131 away from the ground. When the sliding component 12 continues to slide along the first direction, the guide part k4 can move along the extension direction of the first guide bar 1131 and drive the locking part k2 to rotate clockwise in the direction away from the limiting groove c1. When the guide part k4 moves to the end of the first guide bar 1131 away from the limiting groove c1, the sliding component 12 stops sliding. At this time, the locking part k2 rotates to the side of the rotating shaft k1 away from the limiting groove c1, and the locking part k2 can maintain its current posture under the action of the elastic part k3. In this way, the limiting effect of the locking part k2 can be released, allowing the sliding component 12 and the bearing component 11 to slide relative to each other in the second direction. When the sliding component 12 slides along the second direction to a position where it is about to overlap with the bearing component 11, the guide part k4 in the rotating buckle 1211 can contact the side of the second guide bar 1141 facing the ground. Furthermore, as the sliding component 12 continues to slide along the first direction, the guide part k4 can move along the extension direction of the second guide bar 1141 and drive the locking part k2 to rotate counterclockwise towards the direction close to the limiting groove c1. When the guide part k4 moves to the end of the second guide bar 1141 close to the limiting groove c1, the sliding component 12 stops sliding. At this time, the locking part k2 rotates to the side of the rotating shaft k1 close to the limiting groove c1, and the locking part k2 can be located in the positioning groove c2 and maintain its current posture under the action of the elastic part k3, that is, the locking part k2 is in the reset state.

[0078] In an alternative embodiment, the guide portion k4 may be connected to one end of the elastic portion k3 to simplify the structure of the rotating buckle 1211.

[0079] Please refer to Figure 7 and Figure 8 In one exemplary embodiment, the first plate b1 of the support frame 112 has a receiving groove c3 at the end away from the ground. The receiving groove c3 and a plurality of limiting grooves c1 can be arranged along the target direction, and the receiving groove c3 has an opening on the side away from the ground. When the locking part k2 is in the reset state, the receiving groove c3 and the positioning groove c2 can be arranged adjacent to each other, and the locking part k2 can be located in both the positioning groove c2 and the receiving groove c3.

[0080] Please refer to Figure 7 and Figure 8In one optional embodiment, the end of the supporting component 11 near the ground may have a third limiting member 115, and the end of the sliding component 12 away from the ground may have a fourth limiting member 123. When the end of the sliding component 12 away from the ground slides to the position of the end of the supporting component 11 near the ground, the third limiting member 115 and the fourth limiting member 123 abut against each other. The third limiting member 115 may be fixedly connected to the end near the ground, and the fourth limiting member 123 may be fixedly connected to the end of the sliding frame 122 away from the ground. In this way, the supporting component 11 and the sliding component 12 can be prevented from separating during the sliding in the target direction.

[0081] Please refer to Figure 10 , Figure 10 This is a schematic diagram of another lifting device 10 provided in an embodiment of the present invention. In an optional embodiment, the lifting device 10 may further include one or more position sensors 13. The multiple position sensors 13 correspond one-to-one with multiple limiting slots c1, and the position sensors 13 are located outside the corresponding limiting slots c1. The position sensors 13 are used to detect whether the rotating buckle 1211 is inserted into the corresponding limiting slot c1. The position sensor 13 may include a micro switch, which can be used to detect the position of an object. When the object moves to the position of the micro switch, the micro switch will convert the change in the object's position into the action of the contact point through a mechanical mechanism, thereby emitting a position detection signal.

[0082] For example, the lifting device 10 also includes a controller and a display. The supporting component 11 has a first limiting groove and a second limiting groove arranged in a direction away from the ground. Multiple position sensors 13 include a first sensor and a second sensor. When the rotating buckle 1211 engages in the first limiting groove, the first position sensor 13 can send a first position detection signal to the controller. After receiving the first position detection signal, the controller can control the display to show corresponding text or image information. This text or image information can be used to describe the current tilt angle of the treadmill. This allows users to easily view the current tilt status of the treadmill, improving the user experience.

[0083] Please refer to Figure 1 In an optional embodiment, the lifting device 10 may further include a support base 14 and a mounting bracket 15; the support base 14 is fixedly connected to the sliding component 12, and the mounting bracket 15 is fixedly connected to the load-bearing component 11 and the running platform bracket, respectively. The support base 14 has a handle, which allows the user to slide the sliding component 12 relative to the load-bearing component 11 by pulling the handle.

[0084] This utility model embodiment also provides a walking machine, which may include a lifting device 10, a running belt, a running platform support, a motor and a roller assembly. The lifting device 10 may be the lifting device 10 in any of the above embodiments.

[0085] The lifting device 10 can have two load-bearing components 11 and two sliding components 12, and the two load-bearing components 11 and the two sliding components 12 are slidably connected in a one-to-one correspondence. The two load-bearing components 11 can be located on both sides of the running platform support, and the two sliding components 12 can also be located on both sides of the running platform support, so that the lifting device 10 has good symmetry and can improve the aesthetics and stability of the lifting device 10.

[0086] In one exemplary embodiment, the adjustment process of the lifting device 10 in the treadmill may include the following five steps:

[0087] (1) Before the user uses the treadmill, the treadmill is in a horizontal state. The user can drive the sliding component 12 to slide relative to the bearing component 11 through the handle on the support base 14. When the rotating buckle 1211 in the sliding component 12 is inserted into the second limiting groove c1 in the bearing component 11, the sliding component 12 stops moving, so that the lifting device 10 is kept at the current height, that is, the tilt angle of the treadmill is kept at the current slope.

[0088] (2) The controller detects the position of the rotating buckle 1211 through the position sensor 13, thereby controlling the display to show the current incline of the treadmill as the first incline.

[0089] (3) The user drives the sliding component 12 to slide again relative to the bearing component 11 through the handle on the support base 14. When the rotating buckle 1211 in the sliding component 12 is inserted into the first limiting groove c1 in the bearing component 11, the sliding component 12 stops moving, so that the lifting device 10 is kept at the current height. In this way, the tilt angle of the walking machine can be raised and the walking machine is kept at the current slope.

[0090] (4) The controller detects the position of the rotating buckle 1211 through the position sensor 13, thereby controlling the display to show that the current incline of the treadmill is the second incline.

[0091] (5) The user drives the sliding component 12 to slide relative to the bearing component 11 again through the handle on the support base 14. When the rotating buckle 1211 in the sliding component 12 disengages from the first limiting groove c1 in the bearing component 11 and rotates clockwise under the drive of the disengagement guide 113, the sliding component 12 slides relative to the bearing component 11 again until the rotating buckle 1211 rotates counterclockwise under the drive of the reset guide 114 and rotates into the positioning groove c2. Then the sliding component 12 and the bearing component 11 are in the same position. At this time, the treadmill returns to the horizontal state.

[0092] It should be noted that the dimensions of the areas may have been exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element is referred to as being "on top of" another element, it can be directly on the other element, or there may be intermediate elements. Additionally, it is understood that when an element is referred to as being "below" another element, it can be directly below the other element, or there may be more than one intermediate element. Furthermore, it is also understood that when an element is referred to as being "between" two elements, it can be the only layer between the two elements, or there may be more than one intermediate element. Similar reference numerals throughout indicate similar elements.

[0093] In this invention, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0094] The above description is only an optional embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lift device, characterized in that The utility model relates to a treadmill, including: a bearing assembly having a first limiting piece, the bearing assembly is used for connecting the treadmill support; a sliding assembly movably connected with the bearing assembly and capable of sliding relative to the bearing assembly along a target direction intersecting with the ground, the sliding assembly having a second limiting piece configured to be engaged with the first limiting piece in the bearing assembly when the sliding assembly slides to a specified position along the target direction.

2. The lift device of claim 1, wherein The first limiting piece includes a limiting groove; The second limiting piece includes a rotating buckle and a positioning portion, the limiting groove and the positioning portion are adjacently arranged, and the rotating buckle is located on a side of the positioning portion away from the ground; When the sliding assembly slides along the target direction, the end of the rotating buckle is inserted into the limiting groove, and the end of the rotating buckle abuts against the positioning portion when the sliding assembly slides to the specified position along the target direction.

3. The lift device of claim 2, wherein The sliding assembly further includes a sliding frame, and the rotating buckle includes a rotating shaft, a clamping portion, and an elastic portion; The rotating shaft is fixedly connected with the sliding frame, The first end of the clamping portion is rotatably connected with the rotating shaft, and the second end of the clamping portion is capable of being inserted into the limiting groove; The first end of the elastic portion is connected with a portion between the first end and the second end of the clamping portion, the second end of the elastic portion is fixedly connected with the sliding frame, and the second end of the elastic portion is located on a side of the first end of the elastic portion close to the ground.

4. The lift device of claim 3, wherein The rotating buckle further includes a guide portion, and the bearing assembly further has a disengaging guide and a resetting guide at both ends thereof in the target direction; The guide portion is fixedly connected with a portion between the first end and the second end of the clamping portion; The disengaging guide is located on a side of the resetting guide close to the ground, and the disengaging guide is configured to drive the guide portion and the clamping portion to rotate in a direction away from the limiting groove when the sliding assembly slides towards the ground along the target direction; The resetting guide is configured to drive the guide portion and the clamping portion to rotate in a direction close to the limiting groove when the sliding assembly slides away from the ground along the target direction.

5. The lift device of claim 4, wherein The bearing assembly further includes a bearing frame including two opposite first plate bodies and two opposite second plate bodies, and the two first plate bodies and the two second plate bodies are sequentially connected to enclose a receiving cavity; The sliding assembly is located in the receiving cavity; The limiting groove is located on the first plate body, and the disengaging guide and the resetting guide are both located in the receiving cavity and fixedly connected with the second plate body.

6. The lift device of claim 5, wherein The disengaging guide includes a first guide strip, and the resetting guide includes a second guide strip; The extension directions of the first guide strip and the second guide strip both have acute angles with the target direction, and the ends of the first guide strip and the second guide strip away from the ground are both closer to the limiting groove; The guide portion is movably arranged between the first guide strip and the second guide strip.

7. The lift device of claim 1, wherein The end of the bearing assembly close to the ground has a third limiting piece, and the end of the sliding assembly away from the ground has a fourth limiting piece; When the end of the sliding assembly away from the ground slides to the position of the end of the bearing assembly close to the ground, the third limiting piece and the fourth limiting piece abut.

8. The lift device of claim 5, wherein, The lifting device further comprises a position sensor, which is located outside the limiting groove and is used to detect whether the rotating buckle is inserted into the limiting groove.

9. The lift device of claim 8, wherein, The lifting device further comprises a support base and a mounting bracket; The support base is fixedly connected with the sliding assembly, and the mounting bracket is fixedly connected with the bearing assembly and the treadmill support respectively.

10. A treadmill characterized by, The treadmill comprises the lifting device according to any one of claims 1-9.

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