Stepping ladder machine up and down floor mechanism

Abstract

The application discloses a stair climbing mechanism of a step-by-step stair climbing machine, which comprises unit support structures and connecting columns. The unit support structures are connected through the connecting columns. Each unit support structure comprises a support wheel structure, a buffer wheel structure, a connecting rod, a gas spring and a support frame. The support wheel structure, the buffer wheel structure and the gas spring are all installed on the support frame. The support wheel structure and the buffer wheel structure are connected through the connecting rod. The gas spring is connected with the buffer wheel structure. In the application, the support wheel structure of the unit support structure is in contact with the adjacent stair to realize support when going up or down the stairs. The application does not need to move together when climbing, has good support effect, and even if vibration occurs during the climbing process, the vibration can be transmitted to the buffer wheel structure, and the vibration is buffered through the expansion and contraction of the gas spring, so that the stability of the application is maintained.

Description

Technical Field

[0001] This invention relates to the field of mechanical design, and in particular to a mechanism for a stepping ladder machine to go up and down stairs. Background Technology

[0002] A stair climber, also known as a stair climber, is a mechanical device used to move heavy objects up and down stairs. A step-type stair climber can move up or down stairs step by step, replacing the previous method of manually carrying heavy objects up and down stairs.

[0003] Existing step-climbing stair climbers generally have a support structure for ascending and descending stairs to provide some support during the ascent or descent. For example, the step-climbing device of the stair climber disclosed in patent CN220009938U has a support plate. However, as disclosed in the above patent, such a support structure usually moves along with the stairs during the ascent, resulting in poor support effect. Moreover, during the ascent, vibration and other factors can easily lead to insufficient support stability and weak reliability. Summary of the Invention

[0004] The purpose of this invention is to provide a step-climbing stair mechanism that can solve one or more of the above-mentioned problems.

[0005] According to one aspect of the present invention, a stepping stair climbing machine is provided, comprising a unit support structure and a connecting column. Multiple unit support structures are provided, and adjacent unit support structures are connected by connecting columns. Each unit support structure includes a support wheel structure, a buffer wheel structure, a connecting rod, a gas spring, and a bracket. The support wheel structure, buffer wheel structure, and gas spring are all mounted on the bracket. The support wheel structure and buffer wheel structure are connected by a connecting rod, and the gas spring and buffer wheel structure are connected.

[0006] The beneficial effects of this invention are as follows: In this invention, the unit support structure can be used in a stepping ladder machine. When going up and down stairs, the support wheel structure of the unit support structure is used to contact the adjacent steps to achieve support. The movement of going up and down stairs can be achieved by other structures of the stepping ladder machine. This invention does not need to move together during climbing, and the support effect is good. Moreover, even if vibration occurs during climbing, the vibration can be transmitted to the buffer wheel structure, and the vibration is buffered by the extension and contraction of the gas spring to maintain the stability of this invention, thereby ensuring the reliability of this invention.

[0007] In some embodiments, the support wheel structure includes a support wheel and a support wheel frame, one end of the support wheel frame being connected to a bracket, and the support wheel being rotatably mounted on the other end of the support wheel frame.

[0008] In some embodiments, the buffer wheel structure includes a buffer wheel and a buffer wheel frame, the buffer wheel being rotatably mounted on one end of the buffer wheel frame, and the buffer wheel frame being hinged to a support.

[0009] In some embodiments, the other end of the buffer wheel frame is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the support wheel frame. The vibration energy received by the support wheel structure is transmitted to the buffer wheel structure through the connecting rod, allowing the buffer wheel structure to swing to provide cushioning.

[0010] In some embodiments, the gas spring includes a cylinder and a piston rod, one end of which is movably disposed within the cylinder, and the other end of which is hinged to a buffer wheel structure.

[0011] In some embodiments, the cylinder body is provided with a protrusion that is hinged to a bracket. The protrusion facilitates the hinged mounting of the cylinder body to the bracket.

[0012] In some embodiments, the unit support structure further includes several rollers, which are rotatably mounted on the bracket. The rollers can contact the current step during stair climbing, preventing direct contact between the bracket and the step from causing excessive friction and hindering the climbing action.

[0013] In some embodiments, the bracket includes a first connecting plate, a second connecting plate, and a connecting block. The first connecting plate and the second connecting plate are connected by the connecting block. The bracket has a through hole that passes through the first connecting plate, the second connecting plate, and the connecting block. The through hole facilitates the connection of the bracket to other external structures. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a stepping stair climbing machine's up-and-down mechanism according to one embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the unit support structure of the step ladder machine's up-and-down mechanism according to one embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the unit support structure of the step ladder machine's up-and-down mechanism according to one embodiment of the present invention, without the second connecting plate.

[0017] In the diagram: 1. Unit support structure, 2. Connecting column, 11. Support wheel structure, 12. Buffer wheel structure, 13. Connecting rod, 14. Gas spring, 15. Bracket, 16. Roller, 111. Support wheel, 112. Support wheel frame, 121. Buffer wheel, 122. Buffer wheel frame, 141. Cylinder body, 142. Piston rod, 143. Protrusion, 151. First connecting plate, 152. Second connecting plate, 153. Connecting block, 154. Through hole. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] refer to Figure 1 , Figure 2 and Figure 3 The present invention provides a stepping ladder machine for going up and down stairs, comprising a unit support structure 1 and a connecting column 2. There can be multiple unit support structures 1. In this embodiment, two unit support structures 1 are preferred.

[0020] The unit support structure 1 includes a support wheel structure 11, a buffer wheel structure 12, a connecting rod 13, a gas spring 14, and a bracket 15.

[0021] The support wheel structure 11 includes a support wheel 111 and a support wheel frame 112. One end of the support wheel frame 112 is hinged to the bracket 15 by a pin, and the support wheel 111 is rotatably mounted on the other end of the support wheel frame 112 by a pin.

[0022] The buffer wheel structure 12 includes a buffer wheel 121 and a buffer wheel frame 122. The buffer wheel 121 is rotatably mounted on one end of the buffer wheel frame 122 via a pin. The buffer wheel frame 122 is hinged to the support 15 via a pin. At the same time, the other end of the buffer wheel frame 122 is connected to one end of the connecting rod 13 via a pin. Thus, the connection position of the buffer wheel frame 122 with the support 15 is between its connection position with the connecting rod 13 and its connection position with the buffer wheel 121. Therefore, the buffer wheel frame 122 can swing around its connection position with the support 15.

[0023] The other end of the connecting rod 13 is hinged to the support wheel frame 112 by a pin, and the connection position of the support wheel frame 112 and the connecting rod 13 is located between the connection position of the support wheel frame 112 and the connection position of the support wheel frame 111.

[0024] The gas spring 14 includes a cylinder 141 and a piston rod 142. One end of the piston rod 142 is movably disposed in the cylinder 141 via a piston, and the cylinder 141 is filled with inert gas. The other end of the piston rod 142 is hinged to the buffer wheel frame 122 of the buffer wheel structure 12 via a pin. The bottom of the cylinder 141 is provided with a protrusion 143, which is hinged to the bracket 15 via a pin.

[0025] The unit support structure 1 also includes rollers 16, which can be a number of rollers. In this embodiment, three rollers 16 are preferred, and the three rollers 16 are rotatably mounted on the bracket 15 via a shaft.

[0026] The bracket 15 includes a first connecting plate 151, a second connecting plate 152, and a connecting block 153. There can be multiple connecting blocks 153, and each connecting block 153 is connected to the first connecting plate 151 and the second connecting plate 152 on both sides respectively. That is, the first connecting plate 151 and the second connecting plate 152 are fixedly connected through the connecting block 153, and the bracket 15 is provided with a through hole 154 that passes through the first connecting plate 151, the second connecting plate 152, and the connecting block 153.

[0027] Furthermore, the adjacent unit support structures 1 are fixedly connected by the connecting column 2 after the installation, so that the adjacent unit support structures 1 can move synchronously.

[0028] In this invention, the through hole 154 can be connected with bolts, so that the invention can be connected to the stepping ladder machine. When the stepping ladder machine is climbing, the rollers 16 and buffer wheels 121 of each unit support structure 1 can be located on the current step. Since the support wheel frame 112 can swing on the bracket 15, the support wheel 111 can abut against another step by relying on the swing of the support wheel frame 112. At this time, the stepping ladder machine can climb, and the support wheel structure 11 plays a supporting role.

[0029] Furthermore, even if vibration occurs during the climbing process, the vibration can be transmitted to the buffer wheel structure 12 via the connecting rod 13. The buffer wheel frame 122 of the buffer wheel structure 12 will swing to a certain extent due to the vibration. However, thanks to the setting of the gas spring 14, the piston rod 142 can generate a corresponding force when the buffer wheel frame 122 swings, thereby effectively reducing the swing amplitude of the buffer wheel frame 122, that is, playing a buffering effect, so as to maintain the stability of the present invention and ensure the working reliability of the present invention.

[0030] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A stepping stair climbing machine's mechanism for going up and down stairs, characterized in that, The system includes multiple unit support structures connected by connecting columns. Each unit support structure comprises a support wheel structure, a buffer wheel structure, a connecting rod, a gas spring, and a bracket. The support wheel structure, buffer wheel structure, and gas spring are all mounted on the bracket. The support wheel structure and buffer wheel structure are connected by connecting rods, and the gas spring and buffer wheel structure are connected. The support wheel structure includes a support wheel and a support wheel frame. One end of the support wheel frame is hinged to a bracket via a pin, and the support wheel is rotatably mounted on the other end of the support wheel frame via the pin. The buffer wheel structure includes a buffer wheel and a buffer wheel frame. The buffer wheel is rotatably mounted on one end of the buffer wheel frame via a pin. The buffer wheel frame is hinged to the support via a pin. Simultaneously, the other end of the buffer wheel frame is connected to one end of a connecting rod via a pin. Thus, the connection position of the buffer wheel frame to the support is between its connection position with the connecting rod and its connection position with the buffer wheel, allowing the buffer wheel frame to swing slightly around its connection position with the support. The other end of the connecting rod is hinged to the support wheel frame via a pin, and the connection position between the support wheel frame and the connecting rod is located between its connection position with the bracket and its connection position with the support wheel. The gas spring includes a cylinder and a piston rod. One end of the piston rod is movably mounted in the cylinder via a piston, and the cylinder is filled with inert gas. The other end of the piston rod is hinged to the buffer wheel frame of the buffer wheel structure via a pin. The bottom of the cylinder has a protrusion, which is hinged to a bracket via a pin. The unit support structure also includes rollers, and there can be several rollers, which are rotatably mounted on the bracket via shafts.

2. The stepping ladder machine's stair-climbing mechanism according to claim 1, characterized in that, The bracket includes a first connecting plate, a second connecting plate, and a connecting block. The first connecting plate and the second connecting plate are connected by the connecting block. The bracket is provided with a through hole that passes through the first connecting plate, the second connecting plate, and the connecting block.

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