Stairlift

Abstract

A kind of stair machine, including base, the two sides of base are equipped with connecting rod assembly respectively, connecting rod assembly includes upper connecting rod and lower connecting rod, the two ends of upper connecting rod and lower connecting rod are hinged to base and pedal respectively, always keep horizontal state in the process that pedal is moved relative to base by connecting rod assembly, to simulate the state that step surface always keeps as horizontal plane in the process of climbing stairs;Meanwhile, the two sides of base are equipped with hydraulic cylinder respectively, and the oil passage is communicated by oil pipe between two hydraulic cylinders.Oil in one hydraulic cylinder is extruded to another hydraulic cylinder as the force of the other pedal rising when one of two pedals is stepped, to realize the automatic alternation of two pedals rising and falling, and compared with steel cable used in prior art, the noise generated by hydraulic oil flow is smaller, improve user experience, relevant structure is relatively simple, expand its scope of application.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a stair climber. Background Technology

[0002] Existing stair climbers mainly consist of a seat, two treads, and two hydraulic cylinders. The first end of each tread is hinged to the seat, and the output end of the hydraulic cylinder is hinged to the tread to provide the restoring force for the tread to rise. However, existing stair climbers have the following problems during use:

[0003] 1) The pedal rotates during movement and cannot remain horizontal at all times, which fails to accurately simulate the state of climbing stairs;

[0004] 2) The two hydraulic cylinders lack a linkage mechanism, making it impossible to automatically raise the other pedal when one pedal lowers. Although some products on the market connect the two hydraulic cylinders with a steel cable to achieve linkage, the steel cable is prone to generating noise during the pulling process, resulting in a poor user experience. Utility Model Content

[0005] This invention provides a stair climber that can simulate the state of climbing stairs to the greatest extent and improve the user experience.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A stair machine, comprising:

[0008] Base;

[0009] A linkage assembly is provided on both sides of the base, including an upper linkage and a lower linkage. The first ends of the upper linkage and the lower linkage are respectively hinged to the base, and the second ends of the upper linkage and the lower linkage are respectively hinged to a horizontal pedal. The upper linkage, the lower linkage, the base and the pedal form a four-bar linkage mechanism. The pedal remains horizontal during the movement of the pedal relative to the base.

[0010] A hydraulic cylinder is disposed on both sides of the base, the fixed end of the hydraulic cylinder being hinged to the base, and the output end of the hydraulic cylinder being hinged to the upper or lower connecting rod; and...

[0011] The oil pipe has its two ends connected to the oil chambers of the two hydraulic cylinders, so that when one of the two pedals is pressed down, the other pedal automatically rises.

[0012] Furthermore, the line connecting the first end of the upper link to the second end of the upper link is parallel to the line connecting the first end of the lower link to the second end of the lower link, and the line connecting the first end of the upper link and the first end of the lower link is parallel to the line connecting the second end of the upper link and the second end of the lower link, so that the upper link, the lower link, the base and the pedal form a parallelogram-shaped four-bar linkage.

[0013] Furthermore, the base includes a base body and a first column disposed at a first end of the base body, and two connecting rod assemblies are disposed on both sides of the first column. The first end of the upper connecting rod is hinged to the first column, and the first end of the lower connecting rod is hinged to the base body.

[0014] Furthermore, the first column has hinge shafts perpendicular to the first column on both sides, the first end of the upper connecting rod is rotatably sleeved on the hinge shaft, the base has hinge seats on both sides of the first column, and the first end of the lower connecting rod is rotatably connected to the hinge seats.

[0015] Furthermore, a spacer is provided between the upper connecting rod and the hinge shaft.

[0016] Furthermore, a connecting plate is provided at the bottom of the pedal, and the second ends of the upper and lower connecting rods are hinged to the connecting plate.

[0017] Furthermore, the upper connecting rod is provided with a support arm, the output end of the hydraulic cylinder is hinged to the corresponding support arm, and the fixed end of the hydraulic cylinder is hinged to the base body.

[0018] Furthermore, the bottom of the base body is provided with several foot pads.

[0019] Furthermore, the oil pipe is equipped with a resistance adjustment device for adjusting the flow area of ​​the oil pipe.

[0020] Furthermore, the base also includes a second column disposed at the second end of the base body, the second column having a receiving cavity, the resistance adjustment device being installed in the receiving cavity, and the adjusting element of the resistance adjustment device passing through the second column.

[0021] The beneficial effects of this utility model are:

[0022] 1. This utility model proposes a stair climber, comprising a base with connecting rod assemblies on both sides. Each connecting rod assembly includes an upper connecting rod and a lower connecting rod, with their ends hinged to the base and the footplate, respectively. The connecting rod assemblies ensure that the footplate remains horizontal during movement relative to the base, simulating the horizontal surface of a stair step. Simultaneously, hydraulic cylinders are located on both sides of the base, connected by an oil pipe. In use, pressing down on one footplate compresses hydraulic oil from one cylinder into the other, providing upward force for the other footplate, thus enabling automatic alternating ascent and descent of the two footplates. Furthermore, compared to the steel cables used in existing technologies, the hydraulic oil flow generates less noise, improving the user experience. The structure is also simpler, expanding its applicability.

[0023] 2. The present invention proposes a stair climber, wherein the linkage assembly includes an upper linkage and a lower linkage. The first ends of the upper linkage and the lower linkage are hinged to the base, and the second ends of the upper linkage and the lower linkage are hinged to the treads. This makes the upper linkage, the lower linkage, the base, and the treads form a planar four-bar linkage in the shape of a parallelogram, ensuring that the treads always move horizontally during the movement of the treads relative to the base, simulating the state in which the step surface always remains horizontal during the process of climbing stairs.

[0024] 3. The stair machine proposed in this utility model has a spacer between the upper connecting rod and the hinge shaft to reduce the noise caused by friction between the upper connecting rod and the hinge shaft during rotation, as well as the damage to the upper connecting rod and the hinge shaft.

[0025] 4. The stair machine proposed in this utility model has several foot pads at the bottom of the base to avoid rigid contact between the base and the ground, increase the friction between the base and the ground, and reduce the displacement between the base and the ground during use.

[0026] 5. The present invention proposes a staircase machine, wherein the oil pipe is provided with a resistance adjustment device for adjusting the flow area of ​​the oil pipe. By adjusting the size of the flow area, the resistance of the hydraulic oil flow is controlled, thereby adjusting the force required when stepping down the pedal to suit users with different usage needs.

[0027] 6. The stair machine proposed in this utility model has a resistance adjustment device installed in the accommodating cavity of the second column, so that the resistance adjustment device is in a fixed position to avoid interference with the pedal. The adjustment component of the resistance adjustment device passes through the second column, so that the user can change the size of the oil pipe flow area by adjusting the component. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is an axonometric view of a staircase machine according to the present invention;

[0030] Figure 2 This is a schematic diagram of a staircase machine according to the present invention, shown from direction A.

[0031] Figure 3 This is a schematic diagram of a staircase machine according to the present invention, shown from direction B.

[0032] Figure 4 This is a schematic diagram of a staircase machine according to the present invention, shown in direction C.

[0033] Figure 5 This is an exploded view of a staircase machine according to the present invention;

[0034] Figure 6 This is an axonometric view of another embodiment of the staircase machine of this utility model;

[0035] Figure 7 This is a schematic diagram from direction A of another embodiment of the staircase machine of this utility model;

[0036] Figure 8 This is a schematic diagram from direction B of another embodiment of the staircase machine of this utility model;

[0037] Figure 9 This is a schematic diagram from direction C of another embodiment of the staircase machine of this utility model;

[0038] Figure 10 This is an exploded view of another embodiment of the staircase machine of this utility model;

[0039] In the diagram, 101 is the base body; 102 is the first column; 103 is the second column; 1031 is the receiving cavity; 104 is the hinge shaft; 105 is the hinge seat; 20 is the connecting rod assembly; 201 is the upper connecting rod; 2011 is the sleeve; 2012 is the support arm; 202 is the lower connecting rod; 30 is the hydraulic cylinder; 40 is the oil pipe; 50 is the spacer; 601 is the left pedal; 602 is the right pedal; 603 is the connecting plate; 70 is the foot pad; 80 is the resistance adjustment device; 801 is the adjusting component; and 90 is the pipe plug. Detailed Implementation

[0040] Example 1

[0041] The following is combined with Figures 1-5 This utility model will be described in detail.

[0042] A type of stair machine, such as Figure 1 As shown, it includes a base, a connecting rod assembly 20, and a hydraulic cylinder 30, specifically:

[0043] The linkage assembly 20 is located on both sides of the base and includes an upper linkage 201 and a lower linkage 202. The first ends of the upper linkage 201 and the lower linkage 202 are respectively hinged to the base, and the second ends of the upper linkage 201 and the lower linkage 202 are respectively hinged to the left pedal 601 and the right pedal 602, which are in a horizontal state. The upper linkage 201, the lower linkage 202, the base and the pedals form a four-bar linkage mechanism. The left pedal 601 and the right pedal 602 perform translational motion during the movement relative to the base.

[0044] Hydraulic cylinders 30 are located on both sides of the base. The fixed end of the hydraulic cylinder 30 is hinged to the base, and the output end of the hydraulic cylinder 30 is hinged to the connecting rod assembly 20. It also includes an oil pipe 40, the two ends of which are respectively connected to the oil chambers of the two hydraulic cylinders 30, so as to realize the interconnection of the oil circuits of the two hydraulic cylinders 30.

[0045] During use, the pedals move horizontally relative to the base via the linkage assembly 20, meaning the pedals perform translational motion rather than rotational motion, thus simulating the horizontal state of the steps during stair climbing. Simultaneously, when one of the two pedals is depressed, hydraulic oil in one hydraulic cylinder 30 is squeezed into the other hydraulic cylinder 30 through the oil pipe 40, thus acting as the force for the other pedal to rise. This enables the two pedals to automatically alternate in rising and falling. Furthermore, compared to the steel cables used in existing technologies, the noise generated by the hydraulic oil flow is lower, improving the user experience. The related structure is also simpler, expanding its applicability.

[0046] like Figure 2 As shown, the line L1 connecting the first end of the upper link 201 to the second end of the upper link 201 is parallel to the line L2 connecting the first end of the lower link 202 to the second end of the lower link 202. The line V1 connecting the first end of the upper link 201 and the first end of the lower link 202 is parallel to the line V2 connecting the second end of the upper link 201 and the second end of the lower link 202. This makes the upper link 201, the lower link 202, the base, and the pedal form a planar four-bar linkage in the shape of a parallelogram, ensuring that the pedal always moves horizontally during its movement relative to the base, simulating the state in which the step surface always remains horizontal during the process of climbing stairs.

[0047] like Figure 5As shown, the base includes a base body 101 and a first column 102 located at the first end of the base body 101. Two connecting rod assemblies 20 are located on both sides of the first column 102. The first end of the upper connecting rod 201 is hinged to the first column 102, and the first end of the lower connecting rod 202 is hinged to the base body 101. Further, hinge shafts 104 perpendicular to the first column 102 are respectively provided on both sides of the first column 102. The first end of the upper connecting rod 201 is rotatably sleeved on the hinge shaft 104. Hinges 105 are respectively provided on both sides of the base at the first column 102. The first end of the lower connecting rod 202 is rotatably connected to the hinge seat 105 by bolts. A spacer 50 is provided between the upper connecting rod 201 and the hinge shaft 104. The spacer 50 is made of a wear-resistant and self-lubricating material to reduce noise caused by friction between the upper connecting rod 201 and the hinge shaft 104 during rotation, as well as damage to the upper connecting rod 201 and the hinge shaft 104.

[0048] like Figure 2 As shown, a connecting plate 603 is provided at the bottom of the pedal, and the second ends of the upper connecting rod 201 and the lower connecting rod 202 are respectively hinged to the connecting plate 603 by bolts. Further, as... Figure 3 As shown, there are two connecting plates 603, which are arranged at relative intervals at the bottom of the pedal. The second ends of the upper connecting rod 201 and the lower connecting rod 202 are located between the two connecting plates 603, and the second ends of the upper connecting rod 201 and the lower connecting rod 202 are hinged to the two connecting plates 603 by bolts to ensure the stability of the pedal during movement.

[0049] like Figure 5 As shown, the first end of the upper connecting rod 201 is provided with a sleeve 2011 rotatably sleeved on the hinge shaft 104. A support arm 2012 is provided outside the sleeve 2011. The output end of the hydraulic cylinder 30 is hinged to the corresponding support arm 2012, and the fixed end of the hydraulic cylinder 30 is hinged to the base body 101. Figures 1-3 As shown, the bottom of the base body 101 is provided with several foot pads 70 to avoid rigid contact between the base and the ground, increase the friction between the base and the ground, and reduce the displacement between the base and the ground during use.

[0050] Example 2

[0051] The following is combined with Figures 6-10 This utility model will be described in detail.

[0052] The difference from Embodiment 1 is that the oil pipe 40 is equipped with a resistance adjustment device 80 for adjusting the flow area of ​​the oil pipe 40. By adjusting the size of the flow area, the resistance to the flow of hydraulic oil is controlled, thereby adjusting the force required when pressing the pedal to suit different user needs.

[0053] The difference from Example 1 is that, as Figure 10As shown, the base also includes a second column 103 located at the second end of the base body 101. The second column 103 has a receiving cavity 1031, and the resistance adjustment device 80 is installed in the receiving cavity 1031. The adjusting element 801 of the resistance adjustment device 80 passes through the second column 103. The adjusting element 801 is a knob, and the flow area of ​​the oil pipe 40 is changed by rotating the knob. Furthermore, a pipe plug 90 is provided at the opening of the receiving cavity 1031 to cover the resistance adjustment device 80 and improve the overall aesthetics.

[0054] The stair climber proposed in this embodiment allows users to adjust the flow area of ​​the oil pipe 40 by rotating a knob before use, thereby changing the flow resistance from one hydraulic cylinder 30 to another, thus altering the motion damping and achieving different set values ​​for treading force training. Therefore, the stair climber proposed in this embodiment can adjust the treading force according to the trainee's needs, making it a fitness equipment suitable for different groups of people.

[0055] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A staircase machine, characterized in that, include: Base; A linkage assembly is provided on both sides of the base, including an upper linkage and a lower linkage. The first ends of the upper linkage and the lower linkage are respectively hinged to the base, and the second ends of the upper linkage and the lower linkage are respectively hinged to a horizontal pedal. The upper linkage, the lower linkage, the base and the pedal form a four-bar linkage mechanism. The pedal remains horizontal during the movement of the pedal relative to the base. A hydraulic cylinder is disposed on both sides of the base, the fixed end of the hydraulic cylinder being hinged to the base, and the output end of the hydraulic cylinder being hinged to the upper or lower connecting rod; and... The oil pipe has its two ends connected to the oil chambers of the two hydraulic cylinders, so that when one of the two pedals is pressed down, the other pedal automatically rises.

2. A staircase machine as described in claim 1, characterized in that, The line connecting the first end of the upper link to the second end of the upper link is parallel to the line connecting the first end of the lower link to the second end of the lower link, and the line connecting the first end of the upper link and the first end of the lower link is parallel to the line connecting the second end of the upper link and the second end of the lower link, so that the upper link, the lower link, the base and the pedal form a parallelogram-shaped four-bar linkage.

3. A staircase machine as described in claim 2, characterized in that, The base includes a base body and a first column at a first end of the base body. Two connecting rod assemblies are located on both sides of the first column. The first end of the upper connecting rod is hinged to the first column, and the first end of the lower connecting rod is hinged to the base body.

4. A staircase machine as described in claim 3, characterized in that, The first column has hinge shafts perpendicular to the first column on both sides. The first end of the upper connecting rod is rotatably sleeved on the hinge shaft. The base is provided with hinge seats on both sides of the first column. The first end of the lower connecting rod is rotatably connected to the hinge seat.

5. A staircase machine as described in claim 4, characterized in that, A spacer is provided between the upper connecting rod and the hinge shaft.

6. A staircase machine as described in claim 3, characterized in that, The bottom of the pedal is provided with a connecting plate, and the second ends of the upper and lower connecting rods are hinged to the connecting plate.

7. A staircase machine as described in claim 3, characterized in that, The upper connecting rod is provided with a support arm, the output end of the hydraulic cylinder is hinged to the corresponding support arm, and the fixed end of the hydraulic cylinder is hinged to the base body.

8. A staircase machine as described in claim 3, characterized in that, The bottom of the base body is provided with several foot pads.

9. A staircase machine as described in any one of claims 3-8, characterized in that, The oil pipe is equipped with a resistance regulating device for adjusting the flow area of ​​the oil pipe.

10. A staircase machine as described in claim 9, characterized in that, The base also includes a second column located at the second end of the base body. The second column has a receiving cavity, the resistance adjustment device is installed in the receiving cavity, and the adjustment element of the resistance adjustment device passes through the second column.

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