Stair climbing cane and method of using the same

Abstract

The present invention belongs to the field of crutches, and discloses an auxiliary stair climbing crutch and a method for using the same. The auxiliary stair climbing crutch comprises a support rod and a handrail clamping assembly, wherein the support rod comprises a support end and a gripping end, the handrail clamping assembly is mounted on the support rod, the handrail clamping assembly comprises a first clamping block and a second clamping block, at least one of the first clamping block and the second clamping block is movably mounted, and the first clamping block and the second clamping block can move toward and away from each other. The auxiliary stair climbing crutch is used to assist people in climbing stairs.

Description

Technical Field

[0001] The invention belongs to the field of crutches, in particular to a crutch for assisting stair climbing and a use method thereof. Background Art

[0002] With the development and progress of social science and technology, people's living standards are constantly improving, and the average human life expectancy has greatly increased. However, the physical functions of the elderly have declined significantly, so their athletic ability has been greatly reduced. Therefore, crutches are needed to facilitate walking. However, when climbing stairs, the performance of crutches is often greatly reduced. Summary of the invention

[0003] The purpose of the present invention is to improve the shortcomings of the prior art and provide a stair climbing assisting crutch and a use method thereof to assist people in climbing stairs.

[0004] The technical solution is as follows:

[0005] An auxiliary stair climbing crutch includes a support rod and a handrail clamping assembly, wherein the support rod includes a supporting end and a gripping end, and the handrail clamping assembly is installed on the support rod. The handrail clamping assembly includes a first clamping block and a second clamping block, at least one of the first clamping block and the second clamping block is movably installed, and the first clamping block and the second clamping block can approach and move away from each other.

[0006] When using an ordinary crutch, support the ground with the support end and hold the grip end with your hand, and you can use it normally. When you need to assist in climbing stairs, pull the first clamping block and the second clamping block on the handrail clamping assembly apart to separate them from each other, then place the first clamping block and the second clamping block on the stair handrail, and then adjust the first clamping block and the second clamping block to be close to each other and press them on the stair handrail. At this time, the clamping effect on the stair handrail is completed. The user can hold the support rod to act as an upward force point, and then climb the stairs. After climbing a certain number of steps, push the support rod upward to move the support rod upward. This cycle completes the climbing of stairs, and then separates the first clamping block and the second clamping block to take out the stair climbing crutch. It has high applicability for people with limited mobility and effectively prevents falls during stair climbing.

[0007] The armrest clamping assembly also includes a mounting block, which is mounted on the support rod. A sliding member and a locking member are provided on the mounting block. The sliding member slides on the mounting block, and the locking member locks the sliding member. The first clamping block is fixedly mounted on the sliding member, and the second clamping block is fixedly mounted on the mounting block. The mounting block is used to install a first clamping block and a second clamping block, wherein the second clamping block is fixed on the mounting block, and the first clamping block is fixed on the sliding member. The sliding member can slide on the mounting block, so it can drive the first clamping block to slide, so that the first clamping block can be close to the second clamping block. In addition, the sliding member is locked by using the locking member, that is, the position of the first clamping block is controlled to be fixed.

[0008] The side edge of the sliding member is provided with a protruding tooth, one end of the locking member is provided with a latching tooth, a sliding groove is provided on the mounting block, a mounting hole is provided on the side of the sliding groove, the sliding member is installed on the sliding groove, and the protruding tooth is located on one side of the mounting hole, the locking member is installed on the mounting hole, and one end of the latching tooth extends into the mounting hole and cooperates with the protruding tooth. The sliding member slides on the sliding groove to realize the movement of the first clamping block, and then the latching tooth on the locking member cooperates with the protruding tooth on the sliding member to realize the locking effect of the sliding member. When the sliding member needs to slide, the latching tooth stuck on the protruding tooth is removed, and the sliding member releases the locking effect and can slide freely.

[0009] The first clamping block and the second clamping block both include a force-bearing rod and a one-way rotating wheel, and the one-way rotating wheel is mounted on the force-bearing rod. The force-bearing rod plays a supporting role, and the guide rotating wheel can only rotate in one direction, so when climbing stairs, it will not slide downward when being pulled by force, thereby protecting the user's installation. When climbing to a certain step, the support rod can be pushed upward, and the one-way rotating wheel rotates at this time, so that the support rod can move upward.

[0010] The one-way rotating wheel includes a roller and a ratchet, wherein the ratchet is fixedly mounted on the force bearing rod, a stop pawl is mounted on the inner side of the roller, and the stop pawl cooperates with the ratchet. The ratchet is fixed, and the rotation of the roller drives the stop pawl to cooperate with the ratchet, so the rotation of the roller can only be in one direction, thus realizing one-way rotation.

[0011] The first clamping block and the second clamping block also include bearings, which are mounted on the force-bearing rod. Two one-way rotating wheels are provided, and the bearing is located between the two groups of one-way rotating wheels, and the two rollers are fixedly connected to the outer rings of the bearings. The rollers are connected by the outer rings of the bearings, which fix the rollers axially, and the bearings themselves have good rotation performance, so they will not interfere with the rotation of the rollers. Two groups of one-way rotating wheels are used, and they are located on both sides of the bearings, respectively, to ensure that the first clamping block and the second clamping block have one-way rotation at both ends.

[0012] The auxiliary stair-climbing crutch also includes an articulated locking piece, wherein the mounting block and the support rod are hingedly connected and locked by the articulated locking piece; the articulated locking piece includes a screwing wheel with a bolt, a support ring with a guide groove and a locking clamping column with a threaded hole, and the hinged parts of the mounting block and the support rod are respectively provided with through clamping grooves, and the support ring is fixed on the hinged part of the mounting block or the support rod, one end of the locking clamping column cooperates with the clamping groove, and the other end passes through the support ring and cooperates with the screwing wheel.

[0013] The mounting block and the support rod are hingedly connected by the hinged locking member, which not only realizes the hinge but also plays a locking role. The support ring is fixed to the hinged part of the mounting block or the support rod, and then the screw wheel is used to screw, and the locking post is driven under the action of the bolt, wherein the locking post is guided by the guide groove on the support ring when rotating to avoid self-rotation, and the locking post is inserted into the slot under the action of the screw wheel, thereby fixing the mounting block and the support rod relatively.

[0014] The support rod comprises a first support rod and a second support rod, the first support rod and the second support rod are hinged and locked by the hinge lock; the second support rod is also hinged with a seat plate, which is locked by the hinge lock. The split structure is convenient for transportation and collection, and the first support rod and the second support rod are rotated 90 degrees, and then the mounting plate is rotated 90 degrees, so that it can serve as a bench for rest.

[0015] The supporting end is located on the first supporting rod, and a claw rod is installed at the bottom of the supporting end. There are multiple claw rods, and the upper end of each claw rod is hinged to one side of the supporting end, and the middle part is hinged through a traction rod. Multiple traction rods are hinged on the same traction piece; the holding end is located on the second supporting rod, and a holding handle is adjustably installed on the holding end.

[0016] The claw rod is provided with a pulling plate to make each claw rod close to each other, so as to grasp objects, and a flexible steel wire rope can be used to connect to the gripping end, which is convenient for users to operate. In addition, a gripping handle is provided on one side of the gripping end, and the gripping handle can be adjusted to adapt to the usage habits of different people by adjusting the height.

[0017] The method for using a stair climbing cane includes the following steps:

[0018] Pull the first clamping block or the second clamping block to move the first clamping block away from the second clamping block;

[0019] Then place the first clamping block and the second clamping block on both sides of the stair handrail;

[0020] Pull the first clamping block or the second clamping block to bring the first clamping block and the second clamping block closer together and clamp the stair handrail;

[0021] When climbing stairs, hold one end of the support rod to act as a handrail;

[0022] After climbing one step, push the support bar upward and continue climbing the stairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings herein show specific examples of the technical solutions described in the present invention, and together with the specific implementation methods, constitute a part of the specification, and are used to explain the technical solutions, principles and effects of the present invention.

[0024] Unless otherwise specified or defined, the same reference numerals in different drawings represent the same or similar technical features, and the same or similar technical features may also be represented by different reference numerals.

[0025] Figure 1 It is a schematic diagram of a three-dimensional structure in which a first clamping block and a second clamping block are far apart from each other according to an embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of a three-dimensional structure in which a first clamping block and a second clamping block are close to each other according to an embodiment of the present invention;

[0027] Figure 3 is a schematic diagram of the exploded structure of the handrail clamping assembly of an embodiment of the present invention;

[0028] Figure 4 is a schematic diagram of the exploded structure of the first clamping block according to an embodiment of the present invention;

[0029] Figure 5 is a schematic cross-sectional structural diagram of an armrest clamping assembly according to an embodiment of the present invention;

[0030] Figure 6 Embodiment of the present invention Figure 5 Schematic diagram of the structure at A in the middle;

[0031] Figure 7 is a schematic diagram of an embodiment of the present invention in a sitting position;

[0032] Figure 8 is a schematic diagram of the exploded structure of the hinged lock according to an embodiment of the present invention;

[0033] Fig. 9 It is a schematic cross-sectional structural diagram of the support end of an embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 10. Support rod; 11. First support rod; 12. Second support rod; 13. Support end; 14. Holding end; 15. Slot; 20. Armrest clamping assembly; 21. First clamping block; 211. Force rod; 212. One-way rotating wheel; 2121. Roller; 2122. Ratchet; 2123. Stop claw; 213. Bearing; 22. Second clamping block; 23. Mounting block; 231. Sliding member; 2311. Protruding tooth; 232. Locking member; 2321. Slot; 233. Sliding groove; 234. Mounting hole; 30. Articulated locking member; 31. Twist wheel; 32. Support ring; 33. Locking column; 40. Seat; 51. Claw rod; 52. Traction rod; 53. Traction sheet; 60. Holding handle. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0037] Unless otherwise specified or defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art. In the case of combining the technical solution of the present invention with a realistic scenario, all technical and scientific terms used herein may also have meanings corresponding to the purpose of implementing the technical solution of the present invention.

[0038] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0039] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] It should be noted that when a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there can be a central component; when an component is considered to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time; when an component is considered to be "installed on" another component, it can be directly installed on the other component or there can be a central component at the same time. When an component is considered to be "set on" another component, it can be directly set on the other component or there can be a central component at the same time.

[0041] like Figures 1 to 3As shown, the auxiliary stair climbing crutch includes a support rod 10 and a handrail clamping assembly 20, wherein the support rod 10 includes a supporting end 13 and a gripping end 14, and the handrail clamping assembly 20 is installed on the support rod 10, and the handrail clamping assembly 20 includes a first clamping block 21 and a second clamping block 22, at least one of the first clamping block 21 and the second clamping block 22 is movably installed, and the first clamping block 21 and the second clamping block 22 can approach and move away from each other.

[0042] When an ordinary crutch is used, the support end 13 is supported on the ground, and the grip end 14 is held by hand, and the crutch can be used normally. When assistance is needed in climbing stairs, the first clamping block 21 and the second clamping block 22 on the handrail clamping assembly 20 are pulled apart to separate them from each other, and then the first clamping block 21 and the second clamping block 22 are placed on the stair handrail, and then the first clamping block 21 and the second clamping block 22 are adjusted to be close to each other and pressed on the stair handrail. At this time, the clamping effect on the stair handrail is completed. The user can hold the support rod 10 to act as an upward force point, and then climb the stairs. After climbing a certain number of steps, the support rod 10 is pushed upward to move the support rod 10 upward. The climbing stairs is completed in this cycle, and then the first clamping block 21 and the second clamping block 22 are separated to take out the stair climbing crutch. It has high applicability for people with limited mobility and effectively prevents falls during stair climbing.

[0043] like Figures 1 to 5 As shown, the armrest clamping assembly 20 also includes a mounting block 23, which is mounted on the support rod 10. A sliding member 231 and a locking member 232 are provided on the mounting block 23. The sliding member 231 slides on the mounting block 23, and the locking member 232 locks the sliding member 231. The first clamping block 21 is fixedly mounted on the sliding member 231, and the second clamping block 22 is fixedly mounted on the mounting block 23.

[0044] The mounting block 23 is used to mount the first clamping block 21 and the second clamping block 22, wherein the second clamping block 22 is fixed on the mounting block 23, and the first clamping block 21 is fixed on the sliding member 231. The sliding member 231 can slide on the mounting block 23, so it can drive the first clamping block 21 to slide, so that the first clamping block 21 can be close to the second clamping block 22. In addition, the sliding member 231 is locked by the locking member 232, that is, the position of the first clamping block 21 is controlled to be fixed.

[0045] like Figures 3 to 5As shown, a protruding tooth 2311 is provided on the side edge of the sliding member 231, a latch tooth 2321 is provided on one end of the locking member 232, a sliding groove 233 is provided on the mounting block 23, a mounting hole 234 is provided on the side of the sliding groove 233, the sliding member 231 is mounted on the sliding groove 233, and the protruding tooth 2311 is located on one side of the mounting hole 234, the locking member 232 is mounted on the mounting hole 234, and one end of the latch tooth 2321 extends into the mounting hole 234 and cooperates with the protruding tooth 2311. The sliding member 231 slides on the sliding groove 233 to realize the movement of the first clamping block 21, and then the locking effect of the sliding member 231 is realized by cooperating between the latch tooth 2321 on the locking member 232 and the protruding tooth 2311 on the sliding member 231. When the sliding member 231 needs to slide, the latch tooth 2321 stuck on the protruding tooth 2311 is removed, and the sliding member 231 releases the locking effect and can slide freely.

[0046] Specifically, the locking member 232 is hinged on the wall of the mounting hole 234, and the hinged position is located in the middle of the locking member 232. A spring is installed on the side of the mounting hole 234 away from the latch tooth 2321. The spring presses against one side of the latch tooth 2321 of the locking member 232. Therefore, in a natural state, the latch tooth 2321 always extends into the sliding groove 233 and cooperates with the protruding tooth 2311 under the action of the spring.

[0047] like Figures 1 to 4 As shown, the first clamping block 21 and the second clamping block 22 both include a force-bearing rod 211 and a one-way rotating wheel 212, and the one-way rotating wheel 212 is mounted on the force-bearing rod 211. The force-bearing rod 211 plays a supporting role, and the guide rotating wheel can only rotate in one direction, so when climbing stairs, it will not slide downward when being pulled by force, protecting the user's installation, and when climbing to a certain step, the support rod 10 can be pushed upward, and the one-way rotating wheel 212 rotates at this time, so that the support rod 10 can move upward.

[0048] like Figures 3 to 5 As shown, the one-way rotating wheel 212 includes a roller 2121 and a ratchet 2122, wherein the ratchet 2122 is fixedly mounted on the force bearing rod 211, and a stop pawl 2123 is mounted inside the roller 2121, and the stop pawl 2123 cooperates with the ratchet 2122. The ratchet 2122 is fixed, and the rotation of the roller 2121 drives the stop pawl 2123 to cooperate with the ratchet 2122, so the rotation of the roller 2121 can only be in one direction, thus achieving one-way rotation.

[0049] Here, the connection between the stop pawl 2123 and the roller 2121 is a rotation connection, and the stop pawl 2123 is driven by a spring toward the side of the ratchet 2122. In order to make the roller 2121 more balanced, four stop pawls 2123 are provided, which are evenly arranged on the inner side of the roller 2121, so that the roller 2121 is subjected to balanced force.

[0050] like Figure 3 and Figure 4 As shown, the first clamping block 21 and the second clamping block 22 further include a bearing 213, and the bearing 213 is installed on the force-bearing rod 211. Two one-way rotating wheels 212 are provided, and the bearing 213 is located between the two groups of one-way rotating wheels 212, and the two rollers 2121 are fixedly connected to the outer ring of the bearing 213. The rollers 2121 are connected to the outer ring of the bearing 213 to fix the rollers 2121 in an axial direction, and the bearing 213 itself has good rotation performance, so it will not interfere with the rotation of the rollers 2121. The use of two groups of one-way rotating wheels 212, which are respectively located on both sides of the bearing 213, can ensure that the first clamping block 21 and the second clamping block 22 have a one-way rotation function at both ends.

[0051] like Figures 5 to 8 As shown, the auxiliary stair climbing crutch also includes an articulated locking member 30, the mounting block 23 and the support rod 10 are hingedly connected and locked by the articulated locking member 30; the articulated locking member 30 includes a screwing wheel 31 with a bolt, a support ring 32 with a guide groove and a locking clamping column 33 with a threaded hole, the hinged part of the mounting block 23 and the support rod 10 are respectively provided with a through clamping groove 15, the support ring 32 is fixed on the hinged part of the mounting block 23 or the support rod 10, one end of the locking clamping column 33 cooperates with the clamping groove 15, and the other end passes through the support ring 32 and cooperates with the screwing wheel 31.

[0052] The mounting block 23 and the support rod 10 are hingedly connected by the hinged lock 30, which not only realizes the hinge but also plays a locking role. The support ring 32 is fixed to the hinged part of the mounting block 23 or the support rod 10, and then the screwing wheel 31 is used to screw, and the locking clamp 33 is driven under the action of the bolt, wherein the locking clamp 33 is guided by the guide groove on the support ring 32 when rotating to avoid self-rotation, and the locking clamp 33 is inserted into the clamping groove 15 under the action of the screwing wheel 31, thereby fixing the mounting block 23 and the support rod 10 relatively.

[0053] Among them, in this embodiment, the mounting plate is provided with four slots 15, and each slot 15 is evenly distributed around the rotation center. Therefore, the mounting plate can be controlled to rotate 90 degrees or 180 degrees and the angle can be fixed. In addition, the second clamping block 22 is fixed to one side of the free end of the mounting plate and close to the edge position. When encountering obstruction by the stair handrail, the fixing plate can be rotated 180 degrees and then held to effectively avoid obstruction.

[0054] like Figure 7 and Figure 8 As shown, the support rod 10 includes a first support rod 11 and a second support rod 12, the first support rod 11 and the second support rod 12 are hinged and locked by the hinge lock 30; the second support rod 12 is also hinged with a seat plate 40, which is locked by the hinge lock 30. The split structure is convenient for transportation and collection, and the first support rod 11 and the second support rod 12 are rotated 90 degrees, and then the mounting plate is rotated 90 degrees, so that it can serve as a bench for rest.

[0055] like Figure 8 and Fig. 9 As shown, the support end 13 is located on the first support rod 10, and a claw rod 51 is installed at the bottom of the support end 13. There are multiple claw rods 51, and the upper end of each claw rod 51 is hinged to one side of the support end 13, and the middle part is hinged by a traction rod 52. Multiple traction rods 52 are hinged on the same traction piece 53; the gripping end 14 is located on the second support rod 10, and the gripping end 14 is adjustably installed with a gripping handle 60.

[0056] The claw rods 51 are provided with a structure that each claw rod 51 is brought close to each other by pulling the traction piece 53, so as to grasp an object, and a flexible steel wire rope can be used to connect the gripping end 14, so as to facilitate the operation of the user. In addition, a gripping handle 60 is provided on one side of the gripping end 14, and the gripping handle 60 can be adjusted to adapt to the usage habits of different people by adjusting the height.

[0057] In this embodiment, four claw rods 51 are provided, which is beneficial to enhance balance.

[0058] The method for using a stair climbing cane includes the following steps:

[0059] Pull the first clamping block 21 or the second clamping block 22 to move the first clamping block 21 and the second clamping block 22 away from each other;

[0060] Then place the first clamping block 21 and the second clamping block 22 on both sides of the stair handrail;

[0061] Pull the first clamping block 21 or the second clamping block 22 to bring the first clamping block 21 and the second clamping block 22 closer together and clamp the stair handrail;

[0062] When climbing stairs, grasp one end of the support rod 10 to act as a handrail;

[0063] After climbing one step of stairs, push the support rod 10 upwards and continue climbing the stairs.

[0064] When quoting drawing descriptions, new features that appear are described; in order to avoid repeated quotations of drawings resulting in less concise descriptions, features that have been described clearly will not be quoted in the drawings one by one.

[0065] The purpose of the above embodiments is to exemplarily reproduce and deduce the technical solution of the present invention, and to fully describe the technical solution, purpose and effect of the present invention. Its purpose is to make the public understand the disclosed content of the present invention more thoroughly and comprehensively, and it does not limit the scope of protection of the present invention.

[0066] The above embodiments are not exhaustive enumerations of the present invention, and there may be multiple other implementations not listed. Any replacement and improvement made without violating the concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A stair climbing crutch, characterized in that: The armrest clamping assembly comprises a support rod and an armrest clamping assembly, wherein the support rod comprises a support end and a gripping end, the armrest clamping assembly is mounted on the support rod, the armrest clamping assembly comprises a first clamping block and a second clamping block, at least one of the first clamping block and the second clamping block is movably mounted, and the first clamping block and the second clamping block can approach and move away from each other; The armrest clamping assembly further comprises a mounting block, the mounting block is mounted on the support rod, a sliding member and a locking member are arranged on the mounting block, the sliding member slides on the mounting block, the locking member locks the sliding member, the first clamping block is fixedly mounted on the sliding member, and the second clamping block is fixedly mounted on the mounting block; The sliding member is provided with a protruding tooth on the side edge, the locking member is provided with a latching tooth at one end, the mounting block is provided with a sliding groove, the side of the sliding groove is provided with a mounting hole, the sliding member is mounted on the sliding groove, and the protruding tooth is located at one side of the mounting hole, the locking member is mounted on the mounting hole, and one end of the latching tooth extends into the mounting hole to cooperate with the protruding tooth; The locking member is hinged on the wall of the mounting hole, a spring is installed on the side of the mounting hole away from the latch teeth, and two ends of the spring are respectively against the locking member and the mounting block.

2. The stair climbing assisting crutch according to claim 1, characterized in that: The first clamping block and the second clamping block both include a force-bearing rod and a one-way rotating wheel, and the one-way rotating wheel is installed on the force-bearing rod.

3. The stair climbing assisting crutch according to claim 2, characterized in that: The one-way rotating wheel comprises a roller and a ratchet, wherein the ratchet is fixedly mounted on the force bearing rod, and a stop pawl is mounted on the inner side of the roller, and the stop pawl matches with the ratchet.

4. The stair climbing assisting crutch according to claim 3, characterized in that: The first clamping block and the second clamping block also include bearings, which are mounted on the force-bearing rod. Two one-way rotating wheels are provided, and the bearings are located between the two groups of one-way rotating wheels, and the two rollers are fixedly connected to the outer rings of the bearings.

5. The stair climbing assisting crutch according to claim 1, characterized in that: It also includes a hinged locking member, the mounting block and the support rod are hingedly connected and locked by the hinged locking member; The articulated locking device includes a screwing wheel with a bolt, a support ring with a guide groove and a locking column with a threaded hole. The hinged parts of the mounting block and the support rod are respectively provided with through slots. The support ring is fixed on the hinged part of the mounting block or the support rod. One end of the locking column cooperates with the slot, and the other end passes through the support ring and cooperates with the screwing wheel.

6. The stair climbing assisting crutch according to claim 5, characterized in that: The support rod comprises a first support rod and a second support rod, wherein the first support rod and the second support rod are hinged to each other and locked by the hinged locking member; a seat plate is also hinged to the second support rod and locked by the hinged locking member.

7. The stair climbing assisting crutch according to claim 6, characterized in that: The support end is located on the first support rod, a claw rod is installed at the bottom of the support end, and multiple claw rods are provided. The upper end of each claw rod is hinged to one side of the support end, and the middle part is hinged through a traction rod, and multiple traction rods are hinged to the same traction piece; The gripping end is located on the second support rod, and a gripping handle is adjustably mounted on the gripping end.

8. The method for using the stair climbing assisting crutch according to any one of claims 1 to 7, characterized in that: The following steps are included: Pull the first clamping block or the second clamping block to move the first clamping block away from the second clamping block; Then place the first clamping block and the second clamping block on both sides of the stair handrail; Pull the first clamping block or the second clamping block to bring the first clamping block and the second clamping block closer together and clamp the stair handrail; When climbing stairs, hold one end of the support rod to act as a handrail; After climbing one step, push the support bar upward and continue climbing the stairs.

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