Electric lift walker and electric lift walker device

Abstract

The utility model discloses an electric lift walking device, including support base, foot pedal board, ball screw, support column and drive arrangement, the support column is fixed on the base, one end of ball screw is installed on the support base, and the other end is installed on the support column, the foot pedal board is installed on the ball screw, and the foot pedal board moves up and down through the ball screw, the support column with the foot pedal board sliding connection, drive arrangement sets up on the support base with ball screw is connected. The utility model discloses through utilizing drive arrangement drive ball screw rotation to realize the lift of foot pedal board, has replaced the manual opening or the shelf building mode of traditional single ladder, herringbone ladder, can after use completion lower foot pedal board to the lowest position, significantly reduce the space occupied, and it is convenient for storage.

Description

Technical Field

[0001] This utility model relates to the field of indoor work equipment technology, and in particular to an electric lifting traveler and an electric lifting travel device. Background Technology

[0002] Currently, commonly used climbing tools for indoor installation, cleaning, partial repair, or maintenance work mainly include single ladders, A-frame ladders, scaffolding, and stools. From a technical perspective, these traditional climbing tools have significant limitations. On the one hand, after use, the relatively long length of single ladders and A-frame ladders, as well as the disassembly and storage of scaffolding, are cumbersome, occupying a large amount of indoor space and easily leading to tool damage if not stored properly. On the other hand, during operation, because these tools have relatively fixed structures, moving them requires considerable manpower, affecting work efficiency and flexibility. Furthermore, throughout the entire process of use, factors such as the tendency of single ladders to tip over, the unstable opening angle of A-frame ladders, the instability of scaffolding, and the limited load-bearing capacity of stools all pose safety hazards to operators, hindering the efficient and safe conduct of indoor climbing operations. Utility Model Content

[0003] The main objective of this utility model is to solve the technical problems described in the background section.

[0004] Firstly, to achieve the above objectives, this utility model provides an electric lifting walking device, including a support base, foot pedals, a ball screw, a support column, and a drive device. The support column is fixed on the base, one end of the ball screw is mounted on the support base, and the other end is mounted on the support column. The foot pedals are mounted on the ball screw and move up and down via the ball screw. The support column is slidably connected to the foot pedals, and the drive device is disposed on the support base and connected to the ball screw.

[0005] Preferably, a top seat is provided at the end of the support column away from the support base, a first bearing seat is provided on the top seat, a second bearing seat is provided on the support base, and the ball screw is rotatably mounted on the support base through the first bearing seat and the second bearing seat.

[0006] Preferably, the electric lifting walker further includes a support plate, which is fixed to the foot pedal and has straps for fixing.

[0007] Preferably, a pull rod handle is movably mounted on the support plate, and the pull rod handle is provided with a raise button for raising the foot pedal and a lower button for lowering the foot pedal.

[0008] Preferably, the driving device includes a drive motor and a reducer, the reducer is connected to the drive motor, the reducer is provided with active bevel gears, and the active bevel gears are meshed with passive bevel gears provided on the ball screw.

[0009] Preferably, the foot pedal is mounted on the ball screw by a nut.

[0010] Preferably, the lower surface of the support base is provided with a first anti-slip pad, and the upper surface of the foot pedal is provided with a second anti-slip pad.

[0011] Preferably, the electric lifting traveler further includes a power unit, which is connected to the drive unit.

[0012] Preferably, the support base is provided with a charging port, which is connected to the power device.

[0013] Secondly, the present invention provides an electric lifting and traveling device, which includes two electric lifting and traveling units as described in any one of the first aspects.

[0014] This invention utilizes a drive device to power a ball screw to raise and lower the foot pedals, replacing the manual opening and closing or scaffolding methods of traditional single ladders and A-frame ladders. After use, the foot pedals can be lowered to their lowest position, significantly reducing space occupation and facilitating storage. Furthermore, compared to traditional climbing tools (such as easily tipped-over single ladders or unstable simple scaffolds), this invention offers higher structural rigidity and stability, reducing the risk of tipping due to improper operation. In addition, the high-precision transmission characteristics of the ball screw enable smooth and accurate raising and lowering of the foot pedals, avoiding the wobbling and errors that occur when adjusting height with traditional tools. It is particularly suitable for indoor installation, maintenance, and other work scenarios requiring high positioning accuracy. Compared to manual operation (such as climbing or manual adjustment), electric drive significantly improves work efficiency and reduces physical exertion. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a front view schematic diagram of the structure of the electric lifting traveler in one embodiment of the present utility model; Figure 2 This is a right-side view of the structure of the electric lifting traveler in one embodiment of the present invention; Figure 3 This is a circuit diagram of an electric lifting walkway in one embodiment of the present invention; Explanation of key component symbols: 1. Support base; 11. First anti-slip pad; 12. Charging port; 2. Foot pedal; 21. Second anti-slip mat; 22. Sliding block; 3. Ball screw; 31. First bearing housing; 32. Second bearing housing; 33. Nut; 4. Support column; 41. Guide groove; 42. Top seat; 5. Support plate; 51. Strap; 52. Pull rod handle; 521. Up button; 522. Down button; 6. Drive unit; 61. Drive motor; 62. Reducer; 63. Active bevel gear; 64. Passive bevel gear; 7. Power unit; 71. Power battery; 8. Battery protection board; 9. Heater. Detailed Implementation

[0017] To better understand the above technical solutions, exemplary embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0018] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0019] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the coordinate system shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] Firstly, to achieve the above objectives, this utility model provides an electric lifting and traveling device, referring to... Figure 1-2 In one embodiment, the electric lifting walker includes a support base 1, a foot pedal 2, a ball screw 3, a support column 4, and a drive device 6. The support column 4 is fixed on the support base 1. One end of the ball screw 3 is mounted on the support base 1, and the other end is mounted on the support column 4. The foot pedal 2 is mounted on the ball screw 3 and moves up and down via the ball screw 3. The support column 4 is slidably connected to the foot pedal 2. The drive device 6 is disposed on the support base 1 and connected to the ball screw 3.

[0023] In this embodiment, the present invention uses a drive device 6 to drive the ball screw 3 to raise and lower the foot pedal 2, replacing the traditional manual opening and closing or scaffolding method of single ladders or A-frame ladders. After use, the foot pedal 2 can be lowered to the lowest position, significantly reducing the space occupied and facilitating storage. At the same time, compared with traditional climbing tools (such as single ladders that are easy to tip over or simple scaffolds with poor stability), the present invention can provide higher structural rigidity and stability, reducing the risk of tipping over due to improper operation. In addition, the high-precision transmission characteristics of the ball screw 3 and the support column 4 that is slidably connected to the foot pedal 2 provide a certain degree of support, enabling the foot pedal 2 to be raised and lowered smoothly and accurately, avoiding the shaking and errors of traditional tools when adjusting the height. It is particularly suitable for indoor installation, maintenance and other work scenarios with high positioning accuracy requirements. Compared with manual operation (such as climbing or manual adjustment), electric drive greatly improves work efficiency and reduces physical exertion.

[0024] Preferably, refer to Figure 1-2 The support column 4 is provided with a top seat 42 at one end away from the support base 1. A first bearing seat 31 is provided on the top seat 42, and a second bearing seat 32 is provided on the support base 1. The ball screw 3 is rotatably mounted on the support base 1 through the first bearing seat 31 and the second bearing seat 32.

[0025] In this embodiment, the stability of the electric lifting traveler is enhanced by setting the top seat 42 to support the ball screw 3.

[0026] Preferably, refer to Figure 1-2 The electric lifting walker also includes a support plate 5, which is fixed on the foot pedal 2, and the support plate 5 is provided with a strap 51 for fixing.

[0027] Reference Figure 1 The straps 51 can be made of materials such as nylon, and their tightness can be adjusted to secure the user's legs. The number of straps 51 can be set according to needs, such as... Figure 2 Two straps 51 are shown (strap 51 and the dotted line portion parallel to it). In this embodiment, by setting the straps 51 on the support plate 5, the fixing of the electric lifting traveler is made more stable.

[0028] Preferred, refer to Figure 1-2 The foot pedal 2 is provided with a slider 22, and the support plate 5 is provided with a guide groove 41. The slider 22 is installed in the guide groove 41, and the foot pedal 2 is slidably connected to the support column 4 through the slider 22 and the guide groove 41.

[0029] It should be noted that the guide groove 41 is vertical (perpendicular to the support base 1) and is used to restrict the foot pedal 2 from moving up and down.

[0030] In this embodiment, by setting the slider 22 and the guide groove 41, a simple combination structure is used to restrict the foot pedal 2 from rotating with the ball screw 3, ensuring that it can only move up and down in the vertical direction. Secondly, the radial offset of the foot pedal 2 is restricted, so as to avoid the foot pedal 2 from swaying or tilting left and right during the lifting and lowering process, thereby improving the stability and safety of use.

[0031] Preferably, refer to Figure 1-2 A lever handle 52 is movably mounted on the support plate 5. The lever handle 52 is provided with a raise button 521 for raising the foot pedal 2 and a lower button 522 for lowering the foot pedal 2.

[0032] The lever handle 52 is movable / extendable (relative to the support plate 5), and can be pulled to raise or lower it to a comfortable height for the user. This allows the user to easily press the raise button 521 or the lower button 522, and provides support to maintain a level body position during operation. The raise / lower buttons are connected to the drive device 6, and pressing these buttons raises and lowers the foot pedal 2. The circuit connections between them can be found in [reference needed]. Figure 3 ,like Figure 3 As shown, KM1 and KM2 represent relays (up button 521 or down button 522), and also include a battery protection board 8 (for battery overcurrent, overvoltage, etc. protection) and a heater 9 (for battery low-temperature heating, etc.). For example, when the drive motor 61 needs to rotate forward and reverse to achieve lifting, the main contact point of KM1 is connected to the positive phase sequence circuit of the drive motor 61. After the drive motor 61 is energized (up button 521 is pressed), it rotates forward, causing the foot pedal 2 to rise (i.e., the drive motor 61 drives the ball screw 3 to rotate (forward rotation). The helical groove on the surface of the ball screw 3 will generate an upward thrust on the nut 33 through the balls (the core component inside the ball screw 3, not explicitly shown in the figure but a standard structure). Due to the foot pedal... The pedal plate 2 and the support column 4 are slidably connected (i.e., the support column 4 restricts the rotation of the pedal plate 2, and it can only move up and down along the support column 4). The nut 33 cannot rotate with the ball screw 3, and can only move upward in a straight line along the spiral groove of the ball screw 3, thereby driving the pedal plate 2 to rise synchronously. The main contact point of KM2 is connected to the reverse phase sequence circuit of the drive motor 61. After the drive motor 61 is energized (the descent button 522 is pressed), it reverses to realize the descent of the pedal plate 2. (When the drive motor 61 drives the ball screw 3 to reverse, the direction of the thrust of the spiral groove of the ball screw 3 on the nut 33 becomes downward. Also subject to the sliding limit of the support column 4, the nut 33 will move downward in a straight line along the spiral groove of the ball screw 3, and finally drive the pedal plate 2 to descend synchronously.)

[0033] In this embodiment, the installation of the electric lifting traveler is made more convenient by setting the lever handle 52, and the adjustment of the electric lifting traveler is made simpler by setting the lifting switch.

[0034] Preferably, refer to Figure 1-2 The driving device 6 includes a drive motor 61 and a reducer 62. The reducer 62 is connected to the drive motor 61. The reducer 62 is provided with an active bevel gear 63, which meshes with a passive bevel gear 64 provided on the ball screw 3.

[0035] In this embodiment, by setting up a drive motor 61 and a reducer 62, the speed and torque are adjusted to solve the problem of "high speed and low torque" when the motor is directly driven.

[0036] Preferably, refer to Figure 1-2 The foot pedal 2 is mounted on the ball screw 3 by a nut 33.

[0037] The foot pedal 2 and the nut 33 are fixed together, meaning that the nut 33 cannot rotate relative to the foot pedal 2.

[0038] In this embodiment, the foot pedal 2 is mounted on the ball screw 3 by means of nuts 33, which makes the electric lifting traveler simple in structure, low in cost, and easy to maintain.

[0039] Preferably, refer to Figure 1-2 The lower surface of the support base 1 is provided with a first anti-slip pad 11, and the upper surface of the foot pedal 2 is provided with a second anti-slip pad 21.

[0040] In this embodiment, the safety of the electric lifting walker is enhanced by setting the first anti-slip pad 11 and the second anti-slip pad 21, making it less prone to slipping during use.

[0041] Preferably, refer to Figure 1-2 The electric lifting traveler also includes a power unit 7, which is connected to the drive unit 6.

[0042] In one embodiment, the electric lifting traveler further includes a battery protection board 8 and a heater 9. The battery protection board 8 is connected to the power unit 7, and the heater 9 is connected to the power battery 71 through the battery protection board 8.

[0043] In this embodiment, the power unit 7 includes a power battery 71, and further refer to... Figure 3 The power battery 71 can be protected by a battery protection board 8 and a heater 9. For example, the power battery 71 can be a power battery pack composed of multiple 18650 batteries. This electric lifting walkway / electric lifting walk device is usually stored indoors, and the general indoor ambient temperature range is about -15℃ to +40℃. The human body protection temperature of the temperature sensor on the battery protection board 8 is ≥5℃. That is, when the ambient temperature of this device is between -15℃ and 5℃, the heater 9 is in the heating state. When the ambient temperature is ≥5℃, the heater 9 stops working, always keeping the power battery pack in the optimal "charging" and "discharging" state.

[0044] Preferably, refer to Figure 1-2 The support base 1 is provided with a charging port 12, which is connected to the power device 7.

[0045] The function of the charging port 12 is to provide power to the power unit 7 to ensure the device's battery life. Note that a charger compatible with the power unit 7 must be used, and the power unit 7 must include a rechargeable battery.

[0046] In this embodiment, the electric lifting walkway can be used continuously by providing a charging port 12, eliminating the need to replace the battery.

[0047] Secondly, referring to Figure 1-2 The present invention provides an electric lifting and traveling device, which includes two electric lifting and traveling units as described in any one of the first aspects.

[0048] Specifically, the operator places both feet on the footrests 2, which are then secured to the calves by straps 51 on the support plate 5. The operator pulls the lever handle 52 to a convenient position, then walks to the desired operating position. Depending on the required height, the operator presses the up / down buttons until the position is comfortable, then releases the buttons to stop the ascent. The leg height can be finely adjusted using the "up" and "down" buttons. After operation, the "down" button can be pressed to the "0" position for walking. Walking is also possible if all operating positions are at the same height. While walking, the operator holds onto the lever or balance support handle to maintain upper body balance. The cushioning pad at the base prevents slipping. This product is small, lightweight, flexible in raising and lowering, safe, efficient, and easy to move, making it suitable for indoor installation and cleaning work. After use, the footrests 2 are stored in conjunction with the support base 1, saving space.

[0049] In this embodiment, two electric lifting walkers are provided to match the left and right feet of the operator, making the operator's work more convenient.

[0050] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electric lifting and traveling device, characterized in that, The electric lifting travel device includes a support base, foot pedals, a ball screw, a support column, and a drive device. The support column is fixed on the base. One end of the ball screw is mounted on the support base, and the other end is mounted on the support column. The foot pedals are mounted on the ball screw and move up and down via the ball screw. The support column is slidably connected to the foot pedals. The drive device is located on the support base and connected to the ball screw.

2. The electric lifting traveling device as described in claim 1, characterized in that, The support column is provided with a top seat at one end away from the support base. A first bearing seat is provided on the top seat, and a second bearing seat is provided on the support base. The ball screw is rotatably mounted on the support base through the first bearing seat and the second bearing seat.

3. The electric lifting traveling device as described in claim 1, characterized in that, The electric lifting walker also includes a support plate, which is fixed to the foot pedal and has straps for fixing.

4. The electric lifting traveling device as described in claim 3, characterized in that, A lever handle is movably mounted on the support plate. The lever handle is equipped with a raise button to raise the foot pedal and a lower button to lower the foot pedal.

5. The electric lifting traveling device as described in claim 1, characterized in that, The driving device includes a drive motor and a reducer. The reducer is connected to the drive motor. The reducer is provided with active bevel gears, which mesh with passive bevel gears provided on the ball screw.

6. The electric lifting traveling device as described in claim 1, characterized in that, The foot pedal is mounted on the ball screw by a nut.

7. The electric lifting traveling device as described in claim 1, characterized in that, The lower surface of the support base is provided with a first anti-slip pad, and the upper surface of the foot pedal is provided with a second anti-slip pad.

8. The electric lifting traveling device as described in claim 1, characterized in that, The electric lifting traveler also includes a power unit, which is connected to the drive unit.

9. The electric lifting traveling device as described in claim 8, characterized in that, The support base is provided with a charging port, which is connected to the power device.

10. An electric lifting and traveling device, characterized in that, The electric lifting and traveling device includes two electric lifting and traveling units as described in any one of claims 1-9.

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