Climbing mechanism

Abstract

The invention provides a climbing mechanism structure for an operator to operate in a standing position, comprising a support, a first slide rail set, a second slide rail set, a first pedal, a second pedal, a first handle, a second handle, and a transmission unit, characterized in that the first slide rail set and the second slide rail set are arranged side by side on the support, the first slide rail set has a first top end, the second slide rail set has a second top end, and the first top end and the second top end are both lower than an eye position of the operator in the height direction. In this way, the operator's line of sight is not blocked by the first slide rail set and the second slide rail set.

Description

TECHNICAL FIELD

[0001] The present invention relates to a climbing mechanism, in particular, a climbing mechanism with reduced height of slide rail. BACKGROUND

[0002] A climbing machine is a common sports equipment, which is provided with a displaceable foot pedal and a handle on a vertical rail. An operator pedals the foot pedal with his feet and holds the handle with his hands, so that the feet and hands move in a straight line to achieve the effect of simulating rock climbing.

[0003] Specifically, the climbing machine includes a climbing machine provided in Chinese Patent No. CN210205813U and a column type combined climbing fitness machine provided in US Patent No. US10758776B2.

[0004] In the aforementioned CN210205813U patent, a connecting frame is provided which can move up and down relative to the frame. The handle and the foot pedal are arranged on the connecting frame. Since the handle and the foot pedal are arranged on the same connecting frame, the connecting frame must be high enough for the operator to hold the handle and pedal the foot pedal to move back and forth. In order to maintain the balance of the climbing machine, the connecting frame must be arranged in the center of the climbing machine, which will block the operator's view.

[0005] In the aforementioned US10758776B2 patent, the handle and the foot pedal are also arranged on the two ends of the same column. Similar to the aforementioned CN210205813U patent, the column must also be high enough, which will also block the operator's view.

[0006] Since the operator's view is blocked, in the aforementioned CN210205813U patent, if a screen is installed on the climbing machine, if the screen is installed on the side away from the operator, the screen will be blocked by the connecting frame. If the screen is installed on the side close to the operator, the screen will be too close to the operator and inconvenient for the operator to watch. Even if the screen is arranged on the side as in the aforementioned US10758776B2 patent, the operator still has to turn his head to see the screen, which is still inconvenient to use. SUMMARY

[0007] Therefore, the purpose of the present invention is to solve the problem of the operator's view being blocked, and to provide a climbing mechanism for an operator to operate in a standing position. The direction of the operator's body trunk in a standing position is defined as a height direction.

[0008] The present application provides a climbing mechanism, comprising a support, comprising a first side and a second side; a first slide rail set, standing on the first side of the support; a second slide rail set, standing on the second side of the support; a first pedal, slidably arranged on the first slide rail set; a second pedal, slidably arranged on the second slide rail set; a first handle, slidably arranged on the first slide rail set; a second handle, slidably arranged on the second slide rail set; and a transmission unit, arranged on the first side and the second side of the support, the transmission unit comprising a first belt and a second belt connected to each other, the first belt and the second belt are arranged in a loop along the height direction and can move relative to the support, the first pedal, the second pedal, the first handle and the second handle are respectively connected to the first belt and the second belt, so that the first pedal, the second pedal, the first handle and the second handle are connected to the transmission unit, and then reciprocate on the first slide rail set and the second slide rail set respectively; characterized in that the first slide rail set has a first top end, the second slide rail set has a second top end, and the first top end and the second top end are lower than an eye position of the operator in the height direction.

[0009] Further, the transmission unit comprises a first pulley, a second pulley, a third pulley, a fourth pulley and a rotating shaft, the first pulley and the second pulley are located on the first side of the support, the third pulley and the fourth pulley are located on the second side of the support, the first belt is looped around the first pulley and the second pulley, the second belt is looped around the third pulley and the fourth pulley, and the second pulley and the fourth pulley are fixed on the rotating shaft to rotate synchronously, the rotating shaft is arranged on the support and rotates relative to the support.

[0010] Further, the first belt comprises a first far section and a first near section, wherein the first far section is away from the operator, the first near section is close to the operator, and the movement directions of the first far section and the first near section are opposite; the second belt comprises a second far section and a second near section, wherein the second far section is away from the operator, the second near section is close to the operator, and the movement directions of the second far section and the second near section are opposite; the first pedal is provided with a first sliding block, the first sliding block is fixed to the first near section by a first connecting piece, the second pedal is provided with a second sliding block, the second sliding block is fixed to the second far section by a second connecting piece, the first handle is provided with a third sliding block, the third sliding block is fixed to the first far section by a third connecting piece, and the second handle is provided with a fourth sliding block, the fourth sliding block is fixed to the first near section by a fourth connecting piece.

[0011] Further, the first slide rail set comprises a first near slide rail and a first far slide rail, the first near slide rail is close to the operator, the first far slide rail is far from the operator, the second slide rail set comprises a second near slide rail and a second far slide rail, the second near slide rail is close to the operator, the second far slide rail is far from the operator; the first slider slides in the first near slide rail, the second slider slides in the second near slide rail, the third slider slides in the first far slide rail, and the fourth slider slides in the second far slide rail.

[0012] Further, at least one roller is arranged on each of the first slider, the second slider, the third slider and the fourth slider; the rollers roll in the first slide rail set and the second slide rail set, so that the first slider, the second slider, the third slider and the fourth slider slide relative to the first slide rail set and the second slide rail set.

[0013] Further, at least one bushing is arranged on each of the first slider, the second slider, the third slider and the fourth slider; the bushings are sleeved on the first slide rail set and the second slide rail set, so that the first slider, the second slider, the third slider and the fourth slider slide relative to the first slide rail set and the second slide rail set.

[0014] Further, a resistance unit is arranged on the support, the resistance unit comprises a driving wheel, a driven wheel, a small driven wheel, a resistance wheel, a third belt, a fourth belt and a resistance piece, the driving wheel is fixed on the rotating shaft, the driven wheel and the small driven wheel are coaxial and rotate synchronously, the small driven wheel is connected to the driving wheel through the third belt, the driven wheel is connected to the resistance wheel through the fourth belt, and the resistance piece moves relative to the resistance wheel; the second pulley and the fourth pulley drive the driving wheel to rotate back and forth through the rotating shaft, the driving wheel drives the resistance wheel to rotate through the third belt, the small driven wheel, the driven wheel and the fourth belt; the resistance piece applies a resistance to the resistance wheel, the resistance is transmitted to the second pulley and the fourth pulley through the resistance unit, and the resistance is further applied to the first pedal, the second pedal, the first handle and the second handle.

[0015] Further, the resistance piece is a magnetic resistance piece, the resistance unit comprises a control piece arranged on the support, and the control piece is connected to the magnetic resistance piece; the position of the magnetic resistance piece is controlled by the control piece, so as to change the size of the resistance.

[0016] Further, the support comprises a screen frame, a screen is arranged on the screen frame, and the screen corresponds to the eye position of the operator in the height direction.

[0017] Further, the support frame includes a column and a base, the height direction is a Z direction, another X direction and a Y direction are perpendicular to the Z direction, and the X direction and the Y direction are perpendicular to each other, wherein the X direction is the body width direction of the operator, the X direction and the Y direction form an XY plane, the column extends obliquely along the Z direction, a column top end of the column is lower than the eye position of the operator in the height direction, the base is located in the XY plane, the first slide rail set and the second slide rail set are arranged on the column, the first pedal and the second pedal are apart from each other by a distance in the X direction, and the first handle and the second handle are also apart from each other by another distance in the X direction.

[0018] The following effects can be achieved preferably according to the above technical features:

[0019] 1. By arranging the first slide rail set and the second slide rail set side by side, when the operator is in an operating state, the first top end of the first slide rail set and the second top end of the second slide rail set are lower than the eye position of the operator in the height direction, and the line of sight of the operator is not blocked by the first slide rail set and the second slide rail set.

[0020] 2. By the structure of the first belt and the second belt and the connection mode of the components, the climbing mechanism can keep the left foot and the right foot of the operator constantly interacting, and the left foot and the right hand are synchronously connected and moved up and down, and the right foot and the left hand are also synchronously connected and moved up and down, which is more in line with actual movement habits.

[0021] 3. The resistance provided by the resistance unit can enhance the training effect.

[0022] 4. Further operation control members can adjust the resistance size according to the needs of the operator.

[0023] 5. Each pedal or handle has its own sliding block and roller, which ensures that the pedal or handle smoothly and stably slides along the first slide rail set or the second slide rail set.

[0024] 6. By the screen frame extending away from the operator, the screen can correspond to the eye position of the operator in the height direction and maintain an appropriate distance from the operator, thereby reducing the eye burden of the operator.

[0025] 7. The first slide rail set and the second slide rail set are balancedly arranged on the first side and the second side of the support frame, which helps to stabilize the operation and effectively reduces the size of the climbing machine. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a perspective view of the first embodiment of the present application in the first side direction.

[0027] Figure 2 is a perspective view of the first embodiment of the present application in the second side direction.

[0028] Figure 3 is an exploded view of the first embodiment of the present application Figure 1 , showing the bracket, the first slide rail set and the second slide rail set.

[0029] Figure 4 is an exploded view of the first embodiment of the present application Figure 2 , showing the bracket, the first belt and the second belt.

[0030] Figure 5 is a partial enlarged view of the first embodiment of the present application Figure 1 , showing the first pulley and the third pulley combined with the bracket.

[0031] Figure 6 is a combined view of the first embodiment of the present application Figure 1 , showing the transmission unit.

[0032] Figure 7 is a combined view of the first embodiment of the present application Figure 2 , showing the first slide block, the second slide block, the third slide block and the fourth slide block combined with the transmission unit.

[0033] Figure 8 is a combined view of the first embodiment of the present application Figure 3 , showing the first slide block, the second slide block, the third slide block and the fourth slide block combined with the transmission unit.

[0034] Figure 9 is a partial enlarged view of the first embodiment of the present application Figure 2 , showing the fixed relationship between the fourth slide block, the fourth connecting plate and the first proximal segment.

[0035] Figure 10 is a combined view of the first embodiment of the present application in a top view, showing the configuration between the first slide rail set, the second slide rail set and the roller.

[0036] Figure 11 is a rear view of the first embodiment of the present application Figure 1 .

[0037] Figure 12 is a partial enlarged view of the first embodiment of the present application Figure 2 , showing the resistance unit.

[0038] Figure 13A is a partial enlarged view of the first embodiment of the present application Figure 3 , showing the resistance unit in another direction.

[0039] Figure 13B is a structural view of the resistance unit of the first embodiment of the present application.

[0040] Figure 14is an implementation schematic diagram of the first embodiment of the present application, showing an operator operating the climbing mechanism.

[0041] Figure 15 is a rear view of the first embodiment of the present application Figure 2 .

[0042] Figure 16 is an exploded schematic diagram of the second embodiment of the present application, showing different types of fourth sliders and second far rails.

[0043] Figure 17 is a combined schematic diagram of the second embodiment of the present application, showing a cross-sectional view of the fourth slider and the second far rail.

[0044] BRIEF DESCRIPTION OF DRAWINGS: 10 - support; 100 - screen; 101 - stand; 101a - stand top end; 102 - base; 1021 - support rod; 103 - screen frame; 104 - first side; 105 - second side; 20 - first rail set; 20a - first top end; 201 - first near rail; 202 - first far rail; 30 - second rail set; 30a - second top end; 301 - second near rail; 302 - second far rail; 302a - second far rail; 3021a - pipe guide rail; 40 - first pedal; 401 - first slider; 402 - first connecting piece; 50 - second pedal; 501 - second slider; 502 - second connecting piece; 60 - first handle; 601 - third slider; 602 - third connecting piece; 70 - second handle; 701 - fourth slider; 701a - fourth slider; 7011a - sliding seat; 7012a - channel; 7013a - bushing; 702 - fourth connecting piece; 403, 503, 603, 703 - roller; 80 - transmission unit; 801 - first belt; 8011 - first far section; 8012 - first near section; 802 - second belt; 8021 - second far section; 8022 - second near section; 803 - first pulley; 804 - second pulley; 805 - third pulley; 806 - fourth pulley; 807 - rotating shaft; 90 - resistance unit; 901 - driving wheel; 902 - driven wheel; 9021 - small driven wheel; 903 - resistance wheel; 904 - resistance piece; 905 - third belt; 906 - fourth belt; 907 - control piece; A - operator; X-X direction; Y-Y direction; Z-Z direction. DETAILED DESCRIPTION

[0045] In summary, the main effects of the climbing mechanism of the present application will be clearly presented in the following embodiments and drawings.

[0046] Please refer to Figures 1 to 3 , which discloses the first embodiment of the climbing mechanism of the present application, for an operator A to operate in a standing position (the operator A please refer to Figure 14When the operator A operates the climbing mechanism in an upright position, the extension direction of the body trunk is defined as a height direction. The terms of left and right, up and down, body width, near and far, etc. are based on the position of the operator A in the operating state.

[0047] The climbing mechanism comprises a support 10, a first slide rail set 20, a second slide rail set 30, a first pedal 40, a second pedal 50, a first handle 60, a second handle 70, a transmission unit 80, a resistance unit 90, and a screen 100. The first pedal 40 and the first handle 60 are slidably arranged on the first slide rail set 20, and the second pedal 50 and the second handle 70 are slidably arranged on the second slide rail set 30.

[0048] The support 10 comprises a column 101, a base 102, and a screen frame 103. The column 101 extends obliquely along a Z direction (i.e. the height direction). The base 102 is arranged on an XY plane perpendicular to the Z direction. The XY plane is formed by an X direction and a Y direction perpendicular to each other, wherein the X direction is the body width direction of the operator A. The screen frame 103 extends obliquely upward from the column 101 in a direction away from the operator A. The support 10 defines a first side 104 on the left and a second side 105 on the right in the X direction.

[0049] The screen 100 is arranged on the screen frame 103, and the screen 100 corresponds to an eye position of the operator A in the height direction. Since the screen frame 103 extends obliquely upward in a direction away from the operator A, the screen 100 can be kept at an appropriate distance from the operator A, reducing the eye burden of the operator A, in addition to corresponding to the eye position of the operator A.

[0050] Preferably, the base 102 is provided with two support rods 1021 arranged side by side in the Y direction. The support rods 1021 extend along the X direction, and have different lengths and appearances according to the center of gravity position of the climbing mechanism, to ensure the stability of the climbing mechanism and the operation safety of the operator A.

[0051] The first slide rail set 20 and the second slide rail set 30 are arranged upright on the column 101, and are arranged side by side on the column 101 in the X direction, so that the first slide rail set 20 is located on the first side 104 and the second slide rail set 30 is located on the second side 105.

[0052] Preferably, the first sliding rail set 20 has a first top end 20a which is the highest in the height direction, the second sliding rail set 30 has a second top end 30a which is the highest in the height direction, and the column 101 has a column top end 101a which is the highest in the height direction, and the first top end 20a, the second top end 30a and the column top end 101a are all lower than the eye level of the operator A in the height direction.

[0053] In the present embodiment, the first sliding rail set 20 and the second sliding rail set 30 each have two sliding rails side by side in the Y direction. The first sliding rail set 20 includes a first near sliding rail 201 close to the operator A and a first far sliding rail 202 far from the operator A, and the second sliding rail set 30 includes a second near sliding rail 301 close to the operator A and a second far sliding rail 302 far from the operator A. In the present embodiment, since the first far sliding rail 202 and the first near sliding rail 201 are fixed to the column 101, the upper end of the first far sliding rail 202 is slightly higher than the upper end of the first near sliding rail 201 in the height direction, and therefore the first top end 20a of the first sliding rail set 20 refers to the upper end of the first far sliding rail 202; similarly, the upper end of the second far sliding rail 302 is slightly higher than the upper end of the second near sliding rail 301 in the height direction, and therefore the second top end 30a of the second sliding rail set 30 refers to the upper end of the second far sliding rail 302.

[0054] Please refer to Figure 1 , Figure 4 and Figure 5 The transmission unit 80 is arranged on the first side 104 and the second side 105 of the bracket 10 and includes a first belt 801 and a second belt 802 which are connected to each other. The first belt 801 and the second belt 802 are respectively located on the first side 104 and the second side 105, and both of them are arranged in a loop along the height direction and can rotate back and forth relative to the bracket 10.

[0055] In the present embodiment, the first belt 801 includes a first far section 8011 (the operator A please refer to Figure 14 ) far from the operator A and a first near section 8012 close to the operator A, and the movement directions of the first far section 8011 and the first near section 8012 are opposite; the second belt 802 includes a second far section 8021 far from the operator A and a second near section 8022 (the second near section 8022 please refer to Figure 6 ) close to the operator A, and the movement directions of the second far section 8021 and the second near section 8022 are also opposite.

[0056] Please refer to Figures 4 to 6The transmission unit 80 comprises a first pulley 803, a second pulley 804, a third pulley 805, a fourth pulley 806 and a rotating shaft 807 in addition to the first belt 801 and the second belt 802.

[0057] The first pulley 803 is pivotally connected above the upright 101 at the first side 104, the second pulley 804 is fixed to the rotating shaft 807 at the first side 104, the rotating shaft 807 is pivotally connected below the upright 101 and can rotate relative to the upright 101, the third pulley 805 is pivotally connected above the upright 101 at the second side 105, and the fourth pulley 806 is fixed to the rotating shaft 807 at the second side 105. The first belt 801 is looped around the first pulley 803 and the second pulley 804, and the second belt 802 is looped around the third pulley 805 and the fourth pulley 806. Since the second pulley 804 and the fourth pulley 806 are fixed to the rotating shaft 807, the second pulley 804, the rotating shaft 807 and the fourth pulley 806 can rotate synchronously, thereby causing the first belt 801 and the second belt 802 to rotate synchronously.

[0058] Please refer to Figure 1 , Figure 7 , Figure 8 and Figure 9 The first pedal 40 is provided with a first sliding block 401, and the first sliding block 401 is fixed to the first proximal section 8012 by a first connecting plate 402. The second pedal 50 is provided with a second sliding block 501, and the second sliding block 501 is fixed to the second distal section 8021 by a second connecting plate 502. The first handle 60 is provided with a third sliding block 601, and the third sliding block 601 is fixed to the first distal section 8011 by a third connecting plate 602. The second handle 70 is provided with a fourth sliding block 701, and the fourth sliding block 701 is fixed to the first proximal section 8012 by a fourth connecting plate 702.

[0059] At least one roller 403, 503, 603, 703 is arranged on each of the first sliding block 401, the second sliding block 501, the third sliding block 601 and the fourth sliding block 701.

[0060] Please refer to Figures 8 to 10 By rolling the rollers 403, 503, 603, 703 in the first sliding rail set 20 and the second sliding rail set 30, the first sliding block 401, the second sliding block 501, the third sliding block 601 and the fourth sliding block 701 slide relative to the first sliding rail set 20 and the second sliding rail set 30.

[0061] More specifically, the first slider 401 slides on the first near slide rail 201, the second slider 501 slides on the second near slide rail 301, the third slider 601 slides on the first far slide rail 202, and the fourth slider 701 slides on the second far slide rail 302.

[0062] The rollers 403, 503, 603, 703 ensure that the first footboard 40, the second footboard 50, the first handle 60, and the second handle 70 can slide smoothly and stably along the first slide rail set 20 or the second slide rail set 30.

[0063] Referring to Figure 3 and Figure 11 , the first footboard 40, the second footboard 50, the first handle 60, and the second handle 70 are connected to the transmission unit 80 and slide reciprocally on the first slide rail set 20 and the second slide rail set 30. The first footboard 40 and the first handle 60 are slidably arranged on the first side 104, and the second footboard 50 and the second handle 70 are slidably arranged on the second side 105. The first footboard 40 and the second footboard 50 are adjacent to each other and separated by a distance in the X direction, and the first handle 60 and the second handle 70 are also adjacent to each other and separated by another distance in the X direction. Since the first slide rail set 20 and the second slide rail set 30 are arranged centrally on the upright column 101, which is located at the central position of the operator A's body (the operator A please refer to Figure 14 ), the climbing mechanism does not occupy too much space and allows the operator A to operate more naturally.

[0064] Referring to Figure 7 , Figure 8 and Figure 11 , the operator A's left foot and right foot are constantly kept in alternating steps (the operator A please refer to Figure 14 ). That is, when the operator A's left foot steps down on the first footboard 40, the first belt 801 rotates, thereby driving the first pulley 803 and the second pulley 804 to rotate. At this time, since the second pulley 804 and the fourth pulley 806 are synchronously connected, the fourth pulley 806 drives the second belt 802 and the third pulley 805 to rotate, so that the second footboard 50 and the first handle 60 are raised. Similarly, when the operator A's right foot steps down on the second footboard 50, the first footboard 40 and the second handle 70 are raised by the action of the transmission unit 80. By alternately stepping on the first footboard 40 and the second footboard 50, the purpose of reciprocating motion is achieved. In addition, the climbing mechanism allows the operator A's right hand and left foot to be synchronously connected and moved up and down, and the left hand and right foot to be synchronously connected and moved up and down, which is more in line with actual movement habits.

[0065] Please refer to Figure 6 , Figure 11 , Figure 12 , Figure 13A and Figure 13B The resistance unit 90 is arranged on the support 10, and comprises a driving wheel 901, a driven wheel 902, a small driven wheel 9021, a resistance wheel 903, a resistance member 904, a third belt 905, a fourth belt 906 and a control member 907, so as to apply a resistance to the first pedal 40, the second pedal 50, the first handle 60 and the second handle 70, and to enhance the training effect. The driving wheel 901 is fixed to the rotating shaft 807, the driven wheel 902 and the small driven wheel 9021 are coaxial and rotate synchronously, the small driven wheel 9021 is connected to the driving wheel 901 through the third belt 905, the driven wheel 902 is connected to the resistance wheel 903 through the fourth belt 906, and the resistance member 904 is arranged corresponding to the resistance wheel 903. Preferably, the resistance member 904 is a magnetic resistance member, and the control member 907 is arranged on the support 10 and connected to the resistance member 904. The position of the magnetic resistance member is controlled through the control member 907, so as to change the resistance according to the requirement of the operator A (the operator A please refer to Figure 14 ). The resistance wheel 903 of the present application can also adopt other resistance structures, such as friction resistance, wind resistance, water resistance, motor or electromagnetic brake, etc.

[0066] Please refer to Figure 12 , Figure 13A , Figure 13B and Figure 14 In more detail, when the operator A steps on the first pedal 40 and the second pedal 50 in turn, the second belt wheel 804 and the fourth belt wheel 806 drive the driving wheel 901 to rotate, and then the driving wheel 901 drives the resistance wheel 903 to rotate through the third belt 905, the small driven wheel 9021, the driven wheel 902 and the fourth belt 906. The resistance is applied to the resistance wheel 903 through the resistance member 904, and is transmitted to the second belt wheel 804 and the fourth belt wheel 806 through the resistance unit 90, and then is applied to the first pedal 40, the second pedal 50, the first handle 60 and the second handle 70.

[0067] Please refer to Figure 3 , Figure 14 and Figure 15, by juxtaposing the first slide rail set 20 and the second slide rail set 30, wherein the first top end 20a, the second top end 30a and the column top end 101a are not higher than the eye level of the operator A in the height direction, and the operator A's line of sight is not blocked by the first slide rail set 20, the second slide rail set 30 and the column 101. Whether the screen 100 is arranged on the climbing mechanism as in the embodiment, or a separate television, projection screen or the like is arranged, the operator A can easily watch without turning his head or looking obliquely.

[0068] Please refer to Figure 16 and Figure 17 , a second embodiment of the climbing mechanism is disclosed, for the convenience of explanation, Figure 16 and Figure 17 The fourth sliding block 701a and the second far slide rail 302a are taken as examples for description, and the first sliding block, the second sliding block, the third sliding block, the first near slide rail, the first far slide rail and the second near slide rail are not drawn.

[0069] In the second embodiment, the second far slide rail 302a comprises two pipe type guide rails 3021a parallel to each other, and the fourth sliding block 701a is provided with a sliding seat 7011a at each corner. Each sliding seat 7011a is provided with a groove 7012a corresponding to the pipe type guide rail 3021a, and a bushing 7013a is fixed in each groove 7012a. The bushing 7013a is made of low-friction and wear-resistant material, and each bushing 7013a is fitted on the pipe type guide rail 3021a, so that the fourth sliding block 701a slides on the second far slide rail 302a.

[0070] In actual implementation, from the direction perpendicular to the axial direction of the sliding seat 7011a, the cross-sectional profile of the groove 7012a is approximately three-quarters of a circle, thereby holding the pipe type guide rail 3021a and smoothly sliding.

[0071] The remaining structures of the second embodiment can apply the corresponding structures of the first embodiment, which will not be repeated here.

[0072] The first embodiment adopts a roller type sliding assembly, such as the rollers 403, 503, 603, 703 of Figure 10 , and the second embodiment adopts a bushing type sliding assembly, such as the bushing 7013a of Figure 17 . If a roller type sliding assembly and a bushing type sliding assembly are mixed, it is also a feasible implementation manner of the present application.

[0073] The above description is only illustrative and is not restrictive of the application. One skilled in the art will appreciate that many modifications, changes, or equivalents can be made by one skilled in the art without departing from the spirit and scope of the present application which are defined in the following claims.

Claims

1. A climbing mechanism for an operator to operate in an upright position, the operator's upright body trunk extending direction defining a height direction, the climbing mechanism comprising: a support frame comprising a first side and a second side; a first slide rail set vertically disposed on the first side of the support frame; a second slide rail set vertically disposed on the second side of the support frame; a first footboard slidably disposed on the first slide rail set; a second footboard slidably disposed on the second slide rail set; a first handle slidably disposed on the first slide rail set; a second handle slidably disposed on the second slide rail set; and a transmission unit disposed on the first side and the second side of the support frame, the transmission unit comprising a first belt and a second belt connected to each other, the first belt and the second belt are both circularly disposed along the height direction and movable relative to the support frame, the first footboard, the second footboard, the first handle and the second handle are each connected to the first belt and the second belt, such that the first footboard, the second footboard, the first handle and the second handle are connected to the transmission unit and reciprocally slide on the first slide rail set and the second slide rail set respectively; characterized in that the first slide rail set has a first top end and the second slide rail set has a second top end, the first top end and the second top end are both lower than an eye level of the operator in the height direction, the transmission unit comprises a first pulley, a second pulley, a third pulley, a fourth pulley and a rotating shaft, the first pulley and the second pulley are located on the first side of the support frame, the third pulley and the fourth pulley are located on the second side of the support frame, the first belt is circularly wound around the first pulley and the second pulley, the second belt is circularly wound around the third pulley and the fourth pulley, and the second pulley and the fourth pulley are fixed on the rotating shaft to synchronously rotate back and forth, the rotating shaft is disposed on the support frame and rotates relative to the support frame.

2. The climbing mechanism of claim 1, wherein the first belt comprises a first far section and a first near section, wherein the first far section is away from the operator and the first near section is close to the operator, the first far section and the first near section move in opposite directions; the second belt comprises a second far section and a second near section, wherein the second far section is away from the operator and the second near section is close to the operator, the second far section and the second near section move in opposite directions; the first footboard is provided with a first sliding block fixed to the first near section by a first connecting piece, the second footboard is provided with a second sliding block fixed to the second far section by a second connecting piece, the first handle is provided with a third sliding block fixed to the first far section by a third connecting piece, and the second handle is provided with a fourth sliding block fixed to the first near section by a fourth connecting piece.

3. The climbing mechanism of claim 2, wherein The first slide rail set includes a first near slide rail and a first far slide rail, the first near slide rail is close to the operator, and the first far slide rail is far from the operator. The second slide rail set includes a second near slide rail and a second far slide rail, the second near slide rail is close to the operator, and the second far slide rail is far from the operator. The first slider slides on the first near slide rail, the second slider slides on the second near slide rail, the third slider slides on the first far slide rail, and the fourth slider slides on the second far slide rail.

4. The climbing mechanism of claim 3, wherein Each of the first slider, the second slider, the third slider, and the fourth slider is provided with at least one roller. The rollers roll in the first slide rail set and the second slide rail set, so that the first slider, the second slider, the third slider, and the fourth slider slide relative to the first slide rail set and the second slide rail set.

5. The climbing mechanism of claim 3, wherein Each of the first slider, the second slider, the third slider, and the fourth slider is provided with at least one bushing. The bushings are sleeved on the first slide rail set and the second slide rail set, so that the first slider, the second slider, the third slider, and the fourth slider slide relative to the first slide rail set and the second slide rail set.

6. The climbing mechanism of claim 1, wherein A resistance unit is arranged on the support. The resistance unit includes a driving wheel, a driven wheel, a small driven wheel, a resistance wheel, a third belt, a fourth belt, and a resistance member. The driving wheel is fixed on the rotating shaft. The driven wheel and the small driven wheel are coaxial and rotate synchronously. The small driven wheel is connected to the driving wheel through the third belt. The driven wheel is connected to the resistance wheel through the fourth belt. The resistance member moves relative to the resistance wheel. The second pulley and the fourth pulley drive the driving wheel to rotate back and forth through the rotating shaft. The driving wheel drives the resistance wheel to rotate through the third belt, the small driven wheel, the driven wheel, and the fourth belt. The resistance member applies a resistance to the resistance wheel. The resistance is transmitted to the second pulley and the fourth pulley through the resistance unit, and then applied to the first pedal, the second pedal, the first handle, and the second handle.

7. The climbing mechanism of claim 6, wherein, The resistance member is a magneto-resistance member. The resistance unit includes a control member arranged on the support. The control member is connected to the magneto-resistance member. The position of the magneto-resistance member is controlled by the control member, so as to change the size of the resistance.

8. The climbing mechanism of claim 1, wherein, The support includes a screen frame. A screen is arranged on the screen frame. The screen corresponds to the eye position of the operator in the height direction.

9. The climbing mechanism of claim 1, wherein, The support includes a column and a base. The height direction is a Z direction. Another X direction and a Y direction are perpendicular to the Z direction. The X direction and the Y direction are perpendicular to each other. The X direction is the body width direction of the operator. The X direction and the Y direction form an XY plane. The column extends obliquely along the Z direction. A column top end of the column is lower than the eye position of the operator in the height direction. The base is located in the XY plane. The first slide rail set and the second slide rail set are arranged on the column. The first pedal and the second pedal are apart from each other by a distance in the X direction. The first handle and the second handle are also apart from each other by another distance in the X direction.

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