CN110935152B

CN110935152B - Rock climbing machine

Info

Publication number: CN110935152B
Application number: CN201811114849.6A
Authority: CN
Inventors: 刘翰霖
Original assignee: Dyaco International Inc
Current assignee: Dyaco International Inc
Priority date: 2018-09-25
Filing date: 2018-09-25
Publication date: 2021-07-23
Anticipated expiration: 2038-09-25
Also published as: CN110935152A

Abstract

The embodiment of the invention discloses a rock climbing machine which comprises a resistance device, a driving device and two climbing devices. The driving device comprises an upper wheel set, an axis wheel set and a lower wheel set. The axle center wheel group comprises a first axle center wheel and a second axle center wheel. Through a plurality of connecting pieces, the up-and-down motion of climbing device drives upper wheel group and lower wheel group and does the rotation of first direction, and upper wheel group drives first axle wheel and does the rotation of second direction, and lower wheel group drives second axle wheel and does the rotation of first direction.

Description

Rock climbing machine

Technical Field

The invention relates to a rock climbing machine.

Background

Rock climbing is a sport derived from mountain climbing. When climbing rock, the arms, the feet and the body are required to be used, which is helpful for strengthening the core muscle strength and has a plurality of benefits for the body.

Taiwan patent I603756 discloses a fluid displacement stationary exercise machine with a continuously variable transmission, which is applied to a rock climbing machine 2. As shown in fig. 1, the rock climbing machine 2 has two foot pedals 21 moving along a sliding guide rail (not shown), the two foot pedals 21 are connected to two chains 22, the two chains 22 are connected to an elastic cable 23, and the elastic cable 23 runs around a front pulley 24 and a rear pulley 25; the two chains 22 are further connected to a first sprocket 26, a second sprocket 27, and are coupled to a main shaft 29 that drives the main sprocket 20 by a one-way counterclockwise clutch 28. With this design, since the height of the spindle 29 must be higher than the pedal 21, the pedal 21 cannot have a large stroke (up-down movement distance) in design. In addition, the chain 22 must be engaged with the cable (elastic cable 23), the front pulley 24 and the rear pulley 25 for turning, and the two must be precisely adjusted for smooth operation.

Taiwan patent I618559 discloses a climbing mountain machine having two pedals that slide up and down along two rails. The two pedals are respectively connected with a connecting block. A front chain is wound on the lower sides of the two lower chain wheels, two ends of the front chain are connected to the connecting blocks, chains on two sides are wound on the upper sides of the two upper chain wheels, one end of each chain is connected to the two connecting blocks, a steel rope is wound on the lower sides of the two fixed pulleys, two ends of each steel rope are connected to the other ends of the chains on two sides, and a magnetic control damping device is driven by the two upper chain wheels.

Taiwan patent I621465B discloses a rock climbing machine, which includes a base, a damping device, two rock climbing simulators, and two treading structures. The damping device is arranged on the base, and two sides of the damping device are respectively connected with a treading structure. The two rock climbing simulators are vertically arranged on two sides of the damping device and are respectively provided with a track, and a holding device is arranged in the track in a sliding manner and is connected with the corresponding treading structure through two connecting rods. In addition, a pulley is arranged above the two tracks, a belt is wound around the pulley, and two ends of the belt are respectively connected with a holding device, so that the two holding devices can be linked up and down.

Taiwan patent M549640U discloses a hand and foot climbing exercise mechanism, which comprises two upright rails, two sliding sets, a linkage mechanism, and a magnetic control damping device. Each sliding group comprises a sliding rod, a handle and a pedal. The sliding rod is arranged in the track, and rollers are arranged on two sides of the sliding rod, so that the sliding rod can slide up and down in the track. The upper end of the slide bar is connected with a handle, and the lower end of the slide bar is connected with a pedal. The linkage mechanism is provided with elements such as a chain wheel, a steel rope and the like, so that the two slide bars can be mutually linked. The magnetic control damping device is coaxially connected with the chain wheel to provide the training damping strength.

In summary, the conventional rock climbing machine mainly uses two modes of chains or link mechanisms to drive the pedals. The former is operated by a chain, a chain wheel, a steel cable and a pulley, all the chain wheels are the same axis, when a larger stroke is to be increased, the whole chain wheel set needs to be raised, so that the whole height of the machine table can be increased; and because the chain must be matched with the steel cable, the front pulley and the rear pulley to carry out steering, the chain and the front pulley and the rear pulley must be accurately adjusted to smoothly move, the difficulty of manufacturing the product is increased, and the fault probability of using the product is increased. Further, the coating material on the surface of the steel cord is easily worn and worn after long-term use. In the latter case, the pedal is driven by a link mechanism, which has the following disadvantages: at short strokes, the operation of the pedal is relatively slow.

Disclosure of Invention

The invention aims to provide a rock climbing machine which has the advantages of good reliability, capability of enlarging a stroke, smoothness in operation, sensitive response and the like.

According to an embodiment of the invention, a rock climbing machine comprises a support frame, two climbing devices, a resistance device and a driving device. The support frame comprises two upright posts. The two climbing devices are connected with the two upright posts of the support frame, and each climbing device comprises a sliding pipe which can move up and down along the corresponding upright post. The resistance device has an axis to provide resistance to the operation of the two climbing devices. The driving device comprises an axis wheel set, an upper wheel set, a lower wheel set, a first transmission piece, a second transmission piece and a third transmission piece. The axle center wheel set comprises a first axle center wheel and a second axle center wheel, the first axle center wheel and the second axle center wheel are pivoted on the axle center, and the first axle center wheel and the second axle center wheel respectively rotate independently and respectively have one-way bearings. The upper wheel set is located above the axle center wheel set. The lower wheel set is located below the axle center wheel set. The first transmission piece is connected with the two climbing devices, the upper wheel set and the first axle wheel. The second transmission piece is connected with the two climbing devices and the lower wheel set. The third transmission member is meshed with the lower wheel set and the second axle wheel. Therefore, the upper wheel set and the lower wheel set rotate in the first direction due to the up-and-down movement of the two climbing devices, the first axle wheel rotates in the second direction, and the second axle wheel rotates in the first direction.

In one embodiment, the upper wheel set includes a first sprocket and a second sprocket, the lower wheel set includes a third sprocket and a fourth sprocket, the third sprocket is a double sprocket having an a gear and a B gear, the first transmission member, the second transmission member and the third transmission member are chains, and the first axle wheel and the second axle wheel are sprockets.

In one embodiment, the first transmission member is engaged with the first sprocket, the second sprocket and the first arbor wheel, and two ends of the first transmission member are respectively connected to the sliding tubes of the two climbing devices, the second transmission member is engaged with the gear a of the third sprocket and the fourth sprocket, two ends of the second transmission member are respectively connected to the sliding tubes of the two climbing devices, and the third transmission member is engaged with the gear B of the third sprocket and the second arbor wheel.

In one embodiment, each climbing device further includes a pedal, a pedal support and the sliding tube are movably disposed in the upright, a portion of the pedal support is movably disposed in the sliding slot of the upright and connected to the sliding tube, and the pedal is connected to the pedal support.

In one embodiment, the upper pulley set includes a first pulley and a second pulley, the lower pulley set includes a third pulley and a fourth pulley, the third pulley is a double pulley having an a pulley and a B pulley, the first transmission member, the second transmission member and the third transmission member are timing belts, and the first axle wheel and the second axle wheel are pulleys.

In one embodiment, the first transmission member is engaged with the first belt pulley, the second belt pulley and the first spindle wheel, and two ends of the first transmission member are respectively connected to the sliding tubes of the two climbing devices, the second transmission member is engaged with the belt pulley a and the fourth belt pulley of the third belt pulley, two ends of the second transmission member are respectively connected to the sliding tubes of the two climbing devices, and the third transmission member is engaged with the belt pulley B and the second spindle wheel of the third belt pulley.

In one embodiment, each of the climbing devices further includes a plurality of adjustment wheel sets, and each of the adjustment wheel sets includes a plurality of fixed wheels to fit the outer surface of the sliding tube.

In one embodiment, each of the two adjusting wheel sets includes two fixed wheels, two adjusting wheels, and an adjusting device, the two fixed wheel shafts are disposed on the fixing seat on one side surface of the upright post, the surfaces of the two fixed wheels abut against the surface of the sliding tube, the two adjusting wheels are disposed on the side surface of the upright post opposite to the two fixed wheels, and the adjusting device is connected to the two adjusting wheels to adjust a gap or tightness between the two adjusting wheels and the sliding tube.

In one embodiment, the adjusting device includes an adjusting member and an adjusting bolt, the adjusting member is pivotally disposed on the protruding structure on the side surface of the pillar, the adjusting bolt passes through the first end of the adjusting member and then is connected to the pillar, the two adjusting wheel shafts are disposed on two sides of the second end of the adjusting member, and the surface of each adjusting wheel abuts against the surface of the sliding tube.

In one embodiment, the resistance device comprises a transmission wheel and a flywheel, wherein the transmission wheel is connected with the flywheel through a connecting piece.

According to the rock climbing machine provided by the embodiment of the invention, the transmission irregularity caused by the adjustment error between the two transmission elements of the chain wheel and the pulley and the abrasion of the coating material of the steel cable after long-term operation can be avoided. Furthermore, the pedals of the rock climbing machine may have a large operating distance. The rock climbing machine also has the advantages of sensitive operation, quick response and the like.

Drawings

Fig. 1 is a perspective view of a driving mechanism of a prior art rock climbing machine.

Fig. 2 is a perspective view of a rock climbing machine according to a preferred embodiment of the present invention.

Fig. 3 is a partial perspective view of a rock climbing machine according to a preferred embodiment of the present invention.

Fig. 4 is a partial perspective view of a rock climbing machine according to a preferred embodiment of the present invention.

Fig. 5 is a partial perspective view of a rock climbing machine according to a preferred embodiment of the present invention.

Fig. 6 is a schematic view of a driving apparatus of a rock climbing machine according to a preferred embodiment of the present invention.

Fig. 7 is a schematic view of a driving apparatus of a rock climbing machine according to a preferred embodiment of the present invention.

[ description of main element symbols ]

1: the rock climbing machine 2: rock climbing machine

10: a support frame 12: climbing device

14: the driving device 16: resistance device

20: drive main sprocket 21: foot pedal

22: chain 23: elastic cable

24: front pulley 25: rear pulley

26: first sprocket 27: second chain wheel

28: one-way counterclockwise clutch 29: main shaft

101: column 102: horizontal pipe

122: the sliding pipe 123: handle bar

124: the pedal 125: pedal supporting seat

126: adjusting the wheel set 127: pulley wheel

128: connection structure 141: upper wheel group

142: a lower wheel set 143: axle center wheel set

144: first transmission member 145: second transmission member

146: third transmission member 1010: sliding chute

1261: fixed wheel 1262: regulating wheel

1263: adjusting device 1264: fixed seat

1265: adjusting part 1266: adjusting bolt

1267: the bump structure 1410: first chain wheel

1412: second sprocket 1414: first axle center

1416: second axis 1420: third chain wheel

1420A A: gear 1420B B: gear wheel

1422: fourth sprocket 1424: third axis

1426: fourth axis 1430: first axle wheel

1432: second hub wheel 1620: axial center

Detailed Description

The following detailed description of the embodiments of the present disclosure will be given with reference to the accompanying drawings. Aside from the detailed description, this invention is capable of general implementation in other embodiments and its several details are capable of modifications in various obvious respects, all without departing from the scope of the present disclosure. In the description of the specification, numerous specific details are set forth in order to provide a more thorough understanding of the invention; however, the present invention may be practiced without some or all of these specific details. In other instances, well known process steps or elements have not been described in detail in order to not unnecessarily obscure the present invention.

Fig. 2 is a perspective view of the rock climbing machine 1 according to the preferred embodiment of the present invention. As shown in fig. 2, the main elements of the rock climbing machine 1 comprise a support frame 10, two climbing devices 12, a drive device 14, and a resistance device 16. Two climbing devices 12 are connected to the support frame 10 for the operator to simulate climbing. The resistance device 16 provides resistance to climbing. The drive device 14 connects the two climbing devices 12 with the resistance device 16. The details are described below.

Fig. 3 is a partial perspective view of the rock climbing machine 1 according to the preferred embodiment of the present invention, in which a part of the structure or elements is omitted and not shown in order to highlight the features of the rock climbing machine 1. As shown in fig. 2 and 3, the support frame 10 may have two uprights 101 and a plurality of cross tubes 102 between the two uprights 101. Each climbing device 12 has a sliding tube 122, a handle 123, and a pedal 124. Each sliding tube 122 is slidably disposed within a corresponding upright 101. The upper end of the sliding tube 122 is fixed to the handle 123, the lower end of the sliding tube 123 is fixed to the pedal support 125, and the pedal support 125 is connected to the pedal 124. As shown in fig. 3, each climbing device 12 may also have two pulleys 127 journaled on either side of the lower end of sliding tube 122, with the surfaces of pulleys 127 abutting the inner wall surface of column 101. The lower half of the upright 101 is provided with a longitudinal sliding groove 1010, and part of the pedal support seat 125 is positioned in the sliding groove 1010. When the sliding tube 122 slides up and down in the column 101, the pedal support 125 moves up and down along the slide slot 1010. The user holds the handles 123 with his hands and steps on the pedals 124 with his feet to simulate climbing training.

Fig. 4 is a partial perspective view of the rock climbing machine 1 according to the preferred embodiment of the present invention. As shown in fig. 4, each climbing device 12 may also include a number of adjustment wheel sets 126. As shown in fig. 4, each adjustment wheel set 126 includes two fixed wheels 1261, two adjustment wheels 1262, and an adjustment device 1263. In this embodiment, two fixed wheels 1261 are axially disposed on a fixed seat 1264 on one side of the column 101, and the surface of the fixed wheels 1261 abuts against the surface of the sliding tube 122. The adjustment devices 1263 are provided on opposite sides of the fixed sheave 1261. The adjustment device 1263 has an adjustment member 1265 and an adjustment bolt 1266. An adjuster 1265 is pivotally mounted on a boss 1267 on the side of the column 101, an adjusting bolt 1266 is inserted through the lower end of the adjuster 1265 to connect to the column 101, and two adjusting wheels 1262 are pivotally mounted on both sides of the upper end of the adjuster 1265. The surface of the adjustment wheel 1262 abuts the surface of the slide tube 122. Thereby, by rotating the adjustment bolt 1266, the tightness between the adjustment wheel 1262 and the sliding tube 122 can be changed. An adjustment wheel set 126 is rotatably connected between the mast 101 and the slide tube 122 to maintain the slide tube 122 in position and reduce friction between the slide tube 122 and the mast 101.

Fig. 5 is a partial perspective view of the rock climbing machine 1 according to the preferred embodiment of the present invention, in which a part of the structure or elements is omitted and not shown in order to highlight the features of the rock climbing machine 1. Referring to fig. 1-5, resistance device 16 is coupled to climbing device 12 via drive mechanism 14 to provide resistance to a user. The resistance value may be controlled by an operator interface 18 above the support frame 10. In the preferred embodiment, the resistance device 16 may include, but is not limited to: a drive wheel 162, a flywheel 164, and a coupling 166. The user's pedaling operation drives the transmission wheel 162 via the driving device 14, and the transmission wheel 162 drives the flywheel 164 to rotate via the connecting member 166 (such as a belt).

Fig. 6 and 7 are partial perspective views of the rock climbing machine 1 according to the preferred embodiment of the present invention, in which a part of the structure or elements is omitted and not shown in order to highlight the features of the rock climbing machine 1. Referring to fig. 1 to 7, the driving wheel set 14 includes an upper wheel set 141, a lower wheel set 142, an axial wheel set 143, a first transmission member 144, a second transmission member 145, and a third transmission member 146. The upper wheel set 141 is located above the axle center wheel set 143, and the lower wheel set 142 is located below the axle center wheel set 143.

Referring to fig. 6 to 7, the axle wheel set 143 has a first axle wheel 1430 and a second axle wheel 1432. The first axle wheel 1430 and the second axle wheel 1432 are both pivoted to the axle 1620 of the driving wheel 162, but they rotate independently and in opposite directions. The first and

second spindle wheels

1430 and 1432 each have one-way bearing (not shown) therein, and the two one-way bearings set the rotation direction of the spindle 1620 to a single direction.

Referring to fig. 6 to 7, the first transmission member 144 connects the two sliding tubes 122, the upper wheel set 141, and the first axle wheel 1430 of the axle wheel set 143, and the up-and-down movement of the sliding tubes 122 causes the upper wheel set 141 to rotate in the first direction and the first axle wheel 1430 to rotate in the second direction. The second transmission 145 connects the two sliding tubes 122 and the lower wheel set 142. The third transmission 146 connects the lower wheel set 142 with the second arbor wheel 1432. The up and down movement of the slide tube 122 will cause the lower wheel set 142 to rotate in the first direction and the second arbor wheel 1432 to rotate in the first direction.

Referring to fig. 6 to 7, in the present embodiment, the upper wheel set 141 has a first sprocket 1410 and a second sprocket 1412. The lower wheel set 142 has a third sprocket 1420 and a fourth sprocket 1422. The first transmission member 144, the second transmission member 145 and the third transmission member 146 are chains. The first and

second mandrels

1430, 1432 are sprockets.

Referring to fig. 6 to 7, in the present embodiment, the first sprocket 1410, the second sprocket 1412, the third sprocket 1420 and the fourth sprocket 1422 are respectively connected to the plurality of transverse tubes 102 (in another embodiment, connected to two vertical columns 101; or, in another embodiment, connected to one or two vertical columns 101 and the transverse tubes 102) of the supporting frame 10 by the first axis 1414, the second axis 1416, the third axis 1424 and the fourth axis 1426. The first sprocket 1410, the second sprocket 1412, the third sprocket 1420 and the fourth sprocket 1422 can rotate around the first axis 1414, the second axis 1416, the third axis 1424 and the fourth axis 1426, respectively.

Referring to fig. 6, in the present embodiment, the third sprocket 1420 is a Double sprocket (Double Strand Sprockets) that includes two

gears

1420A and 1420B that rotate synchronously and in the same direction. In another embodiment of the present invention, the third sprocket 1420 is interchanged with the fourth sprocket 1422.

Referring to fig. 6, in the present embodiment, the lower end of each sliding tube 122 is fixed to a connection structure 128. The first transmission member 144 has two ends connected to the upper ends of the two connecting structures 128, and is engaged with the first chain wheel 1410, the second chain wheel 1412, and the first axle wheel 1430. The second transmission member 145 has both ends connected to the lower ends of the two connecting structures 128, respectively, and is engaged with the a-gear 1420A and the fourth sprocket 1422 of the third sprocket 1420. The third transmission member 146 is annularly enclosed and engages the B-gear 1420B of the third sprocket 1420 and the second arbor wheel 1432.

Referring to fig. 6, when the two pedals 124 move up and down, for example, the left pedal 124 moves down and the right pedal 124 moves up, the first sprocket 1410, the second sprocket 1412, the third sprocket 1420 and the fourth sprocket 1422 all rotate counterclockwise, the first axle wheel 1430 rotates clockwise, and the second axle wheel 1432 is driven by the third sprocket 1420 to rotate counterclockwise. At this time, the one-way bearing in the second hub wheel 1432 is disengaged from the hub 1620, the one-way bearing in the first hub wheel 1430 is engaged with the hub 1620, and the driving kinetic energy is transmitted from the first hub wheel 1430 to the hub 1620 of the driving wheel 162.

Referring to fig. 7, when the two pedals 124 move up and down, for example, the left pedal 124 moves up and the right pedal 124 moves down, the first sprocket 1410, the second sprocket 1412, the third sprocket 1420 and the fourth sprocket 1422 all rotate clockwise, the first arbor wheel 1430 rotates counterclockwise, and the second arbor wheel 1432 is driven by the third sprocket 1420 to rotate clockwise. At this time, the one-way bearing in the first hub wheel 1430 is disengaged from the hub 1620, the one-way bearing in the second hub wheel 1432 is engaged with the hub 1620, and the driving kinetic energy is transmitted from the second hub wheel 1432 to the hub 1620 of the driving wheel 162.

The rock climbing machine 1 provided by the embodiment of the invention only utilizes the chain wheel and the chain, does not need the pulley and the steel cable, and can avoid unsmooth transmission caused by adjustment errors between two transmission elements and abrasion of a coating material of the steel cable after long-term operation. Further, according to the rock climbing machine 1 of the embodiment of the present invention, since the first sprocket 1410 and the second sprocket 1412 are not coaxial with the driving wheel 162 and the axial center 1620 can be located lower than the pedal 124, the pedal 124 can be designed to have a large stroke (up-down moving distance). For example, placing the first sprocket 1410 and the second sprocket 1412 at a higher position, in conjunction with the longer length of the slide slot 1010, will allow the pedal 124 to have a greater stroke. In addition, the rock climbing machine 1 provided by the embodiment of the invention also has the advantages of sensitive operation, quick response and the like.

Various modifications and changes may be made to the embodiments described above. For example, in another embodiment of the present invention, the first transmission member 144, the second transmission member 145 and the third transmission member 146 are all changed to be corresponding timing belts (timing Belt), and the first sprocket 1410, the second sprocket 1412, the third sprocket 1420, the fourth sprocket 1422, the first axle wheel 1430 and the second axle wheel 1432 are all changed to be corresponding pulleys. The first transmission member 144 is changed to a timing belt having teeth on both sides, and the remaining transmission members are changed to timing belts having teeth on one side. The third sprocket 1420 is replaced with a Double Timing Pulley (Double Timing Pulley) which includes two pulleys a and B rotating in the same direction. Each pulley has a toothed engagement of a spline and a timing belt. The working principle and other details of this embodiment are the same as those of the previous embodiment, and are not described again.

Various modifications, changes, combinations, permutations, omissions, substitutions, and equivalents will now occur to those skilled in the art, without departing from the spirit of the present invention. Structures or methods that may correspond to or relate to features of embodiments described herein, and/or any applications, disclaimers, or approved by the inventors or assignee hereof, are incorporated herein as part of the specification. The incorporated portion, including corresponding, related and modified portions or all thereof, (1) operable and/or configurable (2) to be modified operable and/or configurable by those skilled in the art (3) to perform/manufacture/use or incorporate the present specification, related applications, and any portion thereof as determined and understood by those skilled in the art.

Unless specifically stated otherwise, conditional phrases or co-terms, such as "can", "possibly" (result) "," perhaps (light) ", or" may ", are generally intended to convey that the embodiments of the present disclosure have, but may also be interpreted as having, features, elements, or steps that may not be required. In other embodiments, these features, elements, or steps may not be required.

The contents of the documents described above are incorporated herein as part of the present specification. The examples provided herein are merely illustrative and are not intended to limit the scope of the present invention. The present invention may take physical form in various parts and arrangements, all of which may be embodied in different, discrete or alternative forms, and all of which may be referred to herein as "comprising" or "comprising" the features or structures described in the related applications. The features and methods disclosed herein, and their counterparts or relatives, including those derivable therein, and those skilled in the art, may be, in part or in whole, (1) operable and/or configurable (2) to be, in accordance with the knowledge of a person skilled in the art, modified to be operable and/or configurable (3) to be, in accordance with the teachings of a person skilled in the art, implemented/manufactured/used or combined with any part of the specification, including (I) any one or more part of the invention or related structures and methods, and/or (II) any variation and/or combination of the contents of any one or more inventive concepts and parts thereof, including any variation and/or combination of the contents of any one or more of the features or embodiments.

Claims

1. A rock climbing machine, comprising:

the supporting frame comprises two upright posts;

the two climbing devices are connected with the two upright posts of the support frame, and each climbing device comprises a sliding pipe capable of moving up and down along the corresponding upright post;

the resistance device is provided with an axis and provides resistance for the operation of the two climbing devices;

a drive device, comprising:

the axle center wheel group comprises a first axle center wheel and a second axle center wheel, the first axle center wheel and the second axle center wheel are pivoted on the axle center, and the first axle center wheel and the second axle center wheel respectively rotate independently and respectively have a one-way bearing;

the upper wheel set is positioned above the axle center wheel set;

the lower wheel set is positioned below the axle center wheel set;

the first transmission piece is connected with the sliding pipe, the upper wheel set and the first axle wheel of the two climbing devices;

the second transmission piece is connected with the sliding pipes of the two climbing devices and the lower wheel set; and

the third transmission piece is meshed with the lower wheel set and the second axle wheel;

the upper wheel set comprises a first chain wheel and a second chain wheel, the lower wheel set comprises a third chain wheel and a fourth chain wheel, the third chain wheel is a double chain wheel and is provided with a gear A and a gear B, the first transmission piece, the second transmission piece and the third transmission piece are chains, and the first axle center wheel and the second axle center wheel are chain wheels;

the first transmission piece is meshed with the first chain wheel, the second chain wheel and the first axle center wheel, two ends of the first transmission piece are respectively connected with the sliding pipes of the two climbing devices, the second transmission piece is meshed with the gear A of the third chain wheel and the fourth chain wheel, two ends of the second transmission piece are respectively connected with the sliding pipes of the two climbing devices, and the third transmission piece is meshed with the gear B of the third chain wheel and the second axle center wheel;

therefore, the up-and-down movement of the sliding pipes of the two climbing devices causes the upper wheel set and the lower wheel set to rotate in a first direction, the first axle center wheel rotates in a second direction, the second axle center wheel rotates in a first direction, the first direction and the second direction are clockwise or anticlockwise respectively, and the first direction is opposite to the second direction.

2. A rock climbing machine, comprising:

the supporting frame comprises two upright posts;

a drive device, comprising:

the upper wheel set is positioned above the axle center wheel set;

the lower wheel set is positioned below the axle center wheel set;

the upper wheel set comprises a first belt pulley and a second belt pulley, the lower wheel set comprises a third belt pulley and a fourth belt pulley, the third belt pulley is a double belt pulley and is provided with a belt pulley A and a belt pulley B, the first transmission piece, the second transmission piece and the third transmission piece are timing belts, and the first axle wheel and the second axle wheel are belt pulleys;

the first transmission piece is meshed with the first belt pulley, the second belt pulley and the first axle wheel, two ends of the first transmission piece are respectively connected with the sliding pipes of the two climbing devices, the second transmission piece is meshed with the belt pulley A and the fourth belt pulley of the third belt pulley, two ends of the second transmission piece are respectively connected with the sliding pipes of the two climbing devices, and the third transmission piece is meshed with the belt pulley B and the second axle wheel of the third belt pulley;

3. The rock climbing machine according to claim 1 or 2, wherein each of the climbing devices further comprises a pedal and a pedal support, the sliding tube being movably disposed within the column, a portion of the pedal support being movably disposed within the sliding slot of the column and connected to the sliding tube, the pedal being connected to the pedal support.

4. The rock climbing machine according to claim 1 or 2, wherein each of the climbing devices further comprises a plurality of adjustment wheel sets, each of the adjustment wheel sets comprising a plurality of fixed wheels to conform to the surface of the sliding tube.

5. The rock climbing machine according to claim 4, wherein each of the two adjusting wheel sets includes two fixed wheels, two adjusting wheels, and an adjusting device, the two fixed wheels are disposed on a fixed seat on one side of the column, the surfaces of the two fixed wheels abut against the surface of the sliding tube, the two adjusting wheels are disposed on the side of the column opposite to the two fixed wheels, and the adjusting device is connected to the two adjusting wheels to adjust the tightness between the two adjusting wheels and the sliding tube.

6. The rock climbing machine according to claim 5, wherein the adjusting device includes an adjusting member pivotally mounted on the raised structure on the side of the pillar, and an adjusting bolt passing through the first end of the adjusting member and connecting to the pillar, the two adjusting wheel shafts being mounted on both sides of the second end of the adjusting member, the surface of each adjusting wheel abutting against the surface of the sliding tube.

7. A rock climbing machine according to claim 1 or 2, the resistance device comprising a drive wheel and a flywheel, the drive wheel being connected to the flywheel by a connection.