A rail-mounted electric hoist

Abstract

The present application discloses a track type electric lifting device, and relates to the technical field of building decoration machinery. The lifting device comprises a vehicle body, a power assembly and a track lifting mechanism arranged on the vehicle body. The track lifting mechanism comprises a support track, a vertical track and a horizontal track. The vertical track is slidably arranged on the support track, and the horizontal track is slidably arranged on the vertical track. A work tool is slidably arranged on the horizontal track. A transmission assembly is arranged between the support track, the vertical track and the horizontal track. The power assembly drives the horizontal track and the vertical track to slide in sequence to realize secondary lifting through the transmission assembly. The vehicle body is provided with directional wheels, universal wheels and handrails. The horizontal track is provided with a transverse motor and a reset mechanism. The present application can realize multi-stage lifting. The work tool can move horizontally and automatically reset. The operation is simple and flexible. One person can operate. Labor intensity and safety hazards are greatly reduced. Construction efficiency and operation quality are improved. The present application is suitable for various wall decoration operations.

Description

Technical Field

[0001] This invention relates to the field of building decoration machinery technology, specifically to a track-type electric lifting device. Background Technology

[0002] In the construction and decoration process, wall treatment is one of the core procedures, including plastering, sizing, and whitewashing. These tasks often require workers to complete them at heights. Traditional construction methods rely heavily on scaffolding, ladders, and other auxiliary tools, with workers operating the tools by hand. This has many drawbacks: extremely high labor intensity, fatigue from prolonged work at height, and a high risk of operational errors; low construction efficiency, as manual operation makes it difficult to guarantee work speed and consistency; significant safety hazards, with frequent accidents such as falls from heights and dropped tools; and inconsistent work quality, greatly affected by the operator's skill level, making it difficult to achieve a smooth and uniform wall surface.

[0003] To address the aforementioned problems, various electric lifting devices have emerged in the prior art, attempting to replace manual high-altitude work. For example, Chinese utility model patent CN221894628U discloses an electric lifting device for interior construction, which includes a base, a lifting mechanism, and a working platform. The lifting mechanism raises and lowers the working platform, allowing construction workers to stand on it for high-altitude work. However, this prior art has the following significant drawbacks, making it difficult to meet actual construction needs: 1. The lifting stroke is limited and can only achieve a single lifting. If the construction needs of higher walls (such as more than 3 meters) are to be met, the overall height of the lifting mechanism needs to be increased. This will cause the center of gravity of the device to shift upward, the stability will be greatly reduced, and the safety hazards will be increased. 2. The working platform has poor mobility and can only achieve overall lifting and lowering, but cannot achieve precise horizontal movement of working tools. During construction, the overall position of the device needs to be adjusted frequently, which is cumbersome and makes it difficult to ensure the flatness and consistency of the wall surface. 3. The lack of an effective tool reset mechanism means that after each section of wall work is completed, the tools need to be manually reset to their initial position, which is cumbersome, wastes construction time, and reduces work efficiency. In view of the above-mentioned shortcomings of existing technologies, there is an urgent need for a track-type electric lifting device that can achieve multi-level lifting, flexible movement, simple operation, and strong versatility, so as to solve the deficiencies of existing electric lifting devices and promote the automation and efficiency of wall decoration construction. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned problems and provide a track-type electric lifting device. To achieve the above objective, this invention adopts the following technical solution: A rail-mounted electric lifting device includes a vehicle body, on which a power assembly and a rail lifting mechanism are mounted. The rail lifting mechanism includes a support rail, a vertical rail, and a horizontal rail. The vertical rail is slidably mounted on the support rail in a vertical direction, and the horizontal rail is slidably mounted on the vertical rail in a vertical direction. A working tool is slidably mounted on the horizontal rail in a horizontal direction. A transmission assembly is provided between the support rail, the vertical rail, and the horizontal rail. The power assembly drives the horizontal rail to slide on the vertical rail through the transmission assembly. When the horizontal rail rises to the top of the vertical rail, the transmission assembly drives the vertical rail to slide upward on the support rail, thereby achieving a secondary lifting and lowering.

[0005] As an improvement, a first sliding seat is slidably provided on the support rail, and the bottom of the vertical rail is fixed on the first sliding seat; a second sliding seat is slidably provided on the vertical rail, and the bottom of the horizontal rail is fixed on the second sliding seat; a third sliding seat is slidably provided on the horizontal rail, and the working tool is mounted on the third sliding seat.

[0006] As an improvement, the transmission assembly includes a pulley block and a first traction rope, the first traction rope being wound around the pulley block.

[0007] As an improvement, the pulley block includes a first pulley, a second pulley, a third pulley, and a fourth pulley; the first pulley is rotatably mounted on the top of the support rail, the second pulley is rotatably mounted on the first sliding seat, the third pulley is rotatably mounted on the top of the vertical rail, and the fourth pulley is rotatably mounted in the middle of the horizontal rail; one end of the first traction rope is connected to the power assembly, and the other end of the first traction rope passes sequentially around the first pulley, the second pulley, the third pulley, and the fourth pulley.

[0008] As an improvement, a transverse motor is provided at one end of the horizontal track, a transverse pulley is rotatably provided on the third sliding seat, and a second traction rope is provided between the transverse pulley and the transverse motor to drive the third sliding seat to move along the horizontal track.

[0009] As an improvement, a fifth pulley is provided at the other end of the horizontal track, a first fixing pin is provided on the third sliding seat, and a second fixing pin is provided at the end of the horizontal track where the transverse motor is located; a third traction rope is wound on the fifth pulley, a first spring is connected between one end of the third traction rope and the first fixing pin, and a second spring is connected between the other end of the third traction rope and the second fixing pin; the first spring and the second spring are used for the rapid reset of the third sliding seat.

[0010] As an improvement, the front bottom of the vehicle body is provided with directional wheels on both sides, and the rear bottom of the vehicle body is provided with omnidirectional wheels.

[0011] As an improvement, a handrail is provided at the top of the end of the vehicle body, a fixing plate is provided on the handrail, a power strip is installed on the fixing plate, the power strip is electrically connected to the power assembly, the power assembly is an electric crane, a work box is provided in the middle of the vehicle body, and the electric crane is installed on the top of the work box.

[0012] As an improvement, the first sliding seat, the second sliding seat, and the third sliding seat are linear sliders or roller guide structures; the support rail, the vertical rail, and the horizontal rail are aluminum profile rails.

[0013] As an improvement, the work tool is a wall planer, wall plasterer, or wall scraper.

[0014] The advantages of this invention are: 1. The invention significantly improves the lifting height: Through a secondary lifting design, the working height is doubled compared to existing single-lifting devices without increasing the overall height of the device and ensuring stability. This can meet the construction needs of higher walls, eliminate the need for scaffolding and other auxiliary tools, and greatly reduce the safety hazards of working at height.

[0015] 2. The invention significantly improves mobility: With a layout of "two directional wheels in the front and one omnidirectional wheel in the back" and a handrail design, the operator can easily push the device to move and turn by a single person. It can easily adapt to narrow construction spaces and can achieve wall work in different areas without frequent relocation of the device. It is convenient to operate and improves construction efficiency.

[0016] 3. The invention significantly improves work efficiency: the reset mechanism enables the work tool to be quickly and automatically reset without manual operation, saving work time; a single person can complete the entire operation process without the need for multiple people to cooperate, reducing labor costs; the electric lifting replaces manual hand-held tool operation, greatly improving work speed, and the overall work efficiency is improved compared with traditional manual operation. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a track-type electric lifting device.

[0018] Figure 2 This is a side view of a track-mounted electric lifting device.

[0019] Figure 3 This is a structural diagram of a rail hoist.

[0020] Figure 4 This is a front view of the rail lift.

[0021] Figure 5 for Figure 4 Cross-sectional view of AA.

[0022] Figure 6 This is a structural diagram of a horizontal track.

[0023] Figure 7 This is the rear view of the horizontal track.

[0024] Figure 8 This is a diagram of the horizontal track lifting structure of a track-type electric lifting device.

[0025] Figure 9 This is a diagram showing the vertical track ascent of a track-type electric lifting device.

[0026] Figure 10 This is a structural diagram of a power strip.

[0027] The diagram is labeled as follows: 1. Vehicle body; 11. Fixed wheels; 12. Swivel wheels; 13. Handrail; 14. Fixing plate; 15. Power strip; 16. Work box; 2. Power components; 21. Electric crane; 3. Track lifting mechanism; 31. Support track; 32. Vertical track; 33. Horizontal track; 34. First sliding seat; 35. Second sliding seat; 36. Third sliding seat; 4. Transmission components; 41. Pulley system; 411. First pulley; 412. Second pulley; 413. Third pulley; 414. Fourth pulley; 42. First traction rope; 43. Horizontal motor; 431. Horizontal pulley; 432. Second traction rope; 433. Fifth pulley; 434. First fixing pin; 435. Second fixing pin; 436. Third traction rope; 437. First spring; 438. Second spring; 5. Work tools. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] In the description of the embodiments of the present invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention 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, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the embodiments of the present invention, "multiple" means at least two.

[0032] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0033] The present invention will now be described in detail and specifically through specific embodiments to enable a better understanding of the invention. However, the following embodiments do not limit the scope of protection of the present invention. Technical solution

[0034] like Figures 1 to 10As shown, this solution includes a vehicle body 1, which serves as the foundation for the entire device. All components (power assembly 2, rail lifting mechanism 3, handrail 13, work box 16, etc.) are directly or indirectly mounted on the vehicle body 1. Its core function is to provide stable support for the entire device while enabling flexible movement. The structural design of the vehicle body 1 fully considers the needs of the construction scenario. Directional wheels 11 are installed on both sides of the front bottom, and omnidirectional wheels 12 are installed on the rear bottom. This layout of "two directional wheels 11 at the front + one omnidirectional wheel 12 at the rear" is an optimized mobile structure: the directional wheels 11 are mainly used to ensure the straightness of the device during movement, preventing deviation during movement and ensuring the stability of the device during construction; the omnidirectional wheels 12 can rotate 360 ​​degrees, greatly improving the device's turning flexibility, facilitating position adjustment in confined construction spaces (such as indoor rooms, corridors, etc.), and enabling wall work in different areas without frequent relocation of the entire device, solving the problems of cumbersome movement and inconvenient turning in existing devices.

[0035] The handrail 13 located at the top of the end of the vehicle body 1 is mainly used by the operator to hold and operate the device. The height and position of the handrail 13 are ergonomically designed, making it easy for the operator to move and adjust the position of the device by pushing it alone. At the same time, it can stabilize the device during operation and prevent the device from shaking and affecting the quality of the work. The fixing plate 14 and the power strip 15 on the handrail 13 are used to solve the power supply problem of the working tools 5: the power strip 15 is electrically connected to the power component 2 and can directly provide power to the electric working tools 5 such as the wall planer and wall plasterer, without the need to lay additional temporary wires. This simplifies the operation process, avoids the safety hazards caused by messy wires, and improves the convenience and safety of the operation.

[0036] The work box 16 located in the middle of the vehicle body 1 can be used to store construction tools, accessories and other items, improving the practicality of the device. On the other hand, the top of the work box 16 serves as the mounting carrier for the power component 2 (electric crane 21). The structural strength of the work box 16 has been reinforced to stably support the weight of the electric crane 21, while reducing the vibration generated by the electric crane 21 during operation and preventing the vibration from being transmitted to the rail lifting mechanism 3, thus affecting the stability and work quality of the work tools 5.

[0037] The track lifting mechanism 3 is the core component for lifting the work tool 5. It consists of a support track 31, a vertical track 32, a horizontal track 33, and three sliding seats (first sliding seat 34, second sliding seat 35, and third sliding seat 36). Its core design highlight is "two-stage sliding cooperation", which realizes two-stage lifting and overcoming the defect of limited single lifting height of existing devices.

[0038] 1. Track Connection Relationship: The support track 31 is the fixed foundation of the entire track lifting mechanism 3. It is vertically installed at the front end of the vehicle body 1. Its length is designed according to the maximum lifting height of the device, providing guidance and support for the sliding of the vertical track 32. The vertical track 32 is slidably set on the support track 31 through the first sliding seat 34, and can slide up and down along the vertical direction of the support track 31. Its length determines the height of the first lifting. The horizontal track 33 is slidably set on the vertical track 32 through the second sliding seat 35, and can slide up and down along the vertical direction of the vertical track 32. Its length is adapted to the width requirements of the wall operation, and at the same time provides guidance for the horizontal movement of the working tool 5. The three sliding seats (first, second, and third sliding seats 36) serve as the sliding carriers of the vertical track 32, the horizontal track 33, and the working tool 5, respectively. They adopt a linear slider or roller guide structure. The advantage of this guide structure is that the frictional resistance is small and the sliding is smooth, which can ensure the precise and stable movement of each track and the working tool 5, while reducing component wear and extending the service life of the device.

[0039] 2. Specific working process of secondary lifting: The core of secondary lifting lies in the step-by-step driving of the horizontal track 33 and the vertical track 32 by the power component 2 through the transmission component 4, without the need for additional control switches, achieving automatic switching. The specific process is as follows: In the initial state, the horizontal track 33 is located at the bottom of the vertical track 32, the vertical track 32 is located at the bottom of the support track 31, and the working tool 5 is in the lowest working position, which is convenient for installation and debugging. When the working height needs to be increased, the power assembly 2 (electric crane 21) is activated. The power assembly 2 transmits power through the transmission assembly 4 (pulley block 41 + first traction rope 42), first driving the horizontal rail 33 to slide upward along the vertical rail 32. At this time, the vertical rail 32 remains stationary, realizing the first lifting and lowering. As the horizontal rail 33 continues to rise, when the horizontal rail 33 slides to the top of the vertical rail 32, a mechanical limit is formed between the horizontal rail 33 and the vertical rail 32. At this time, the traction force of the transmission assembly 4 can no longer drive the horizontal rail 33 to rise, and then the traction force is transmitted to the vertical rail 32, driving the vertical rail 32 to slide upward along the support rail 31 through the first sliding seat 34, realizing the second lifting and lowering. When it is necessary to lower, the power assembly 2 reverses its action, the traction force is released, first driving the vertical rail 32 to descend along the support rail 31 to the bottom, and then driving the horizontal rail 33 to descend along the vertical rail 32 to the bottom, restoring the initial state.

[0040] This secondary lifting design achieves a higher working height without increasing the overall height of the track. For example, if the length of both the vertical track 32 and the support track 31 is 1.5 meters, a working height of 3 meters can be achieved through secondary lifting. Compared with the existing single lifting device, the working height is doubled while ensuring the stability of the device, which can meet the construction needs of most indoor walls. At the same time, it avoids the problem of the center of gravity shifting upward and the stability decreasing due to the excessive length of the track.

[0041] The transmission component 4 is the core connecting the power component 2 and the track lifting mechanism 3. It is responsible for transmitting the power of the power component 2 to the horizontal track 33 and the vertical track 32 to achieve secondary lifting. Its structure consists of a pulley block 41 and a first traction rope 42. The design of the pulley block 41 has been precisely calculated to ensure the efficiency and stability of power transmission.

[0042] 1. Composition and Installation Position of Pulley Block 41: Pulley block 41 includes a first pulley 411, a second pulley 412, a third pulley 413, and a fourth pulley 414. The installation positions of the four pulleys are optimized to correspond to different power transmission requirements: The first pulley 411 is rotatably mounted on the top of the support rail 31, serving as a turning node for power transmission and changing the direction of force on the first traction rope 42; the second pulley 412 is rotatably mounted on the first sliding seat 34, moving synchronously with the vertical rail 32 to transmit traction force to the vertical rail 32; the third pulley 413 is rotatably mounted on the top of the vertical rail 32, serving as a power turning node for the lifting and lowering of the horizontal rail 33; the fourth pulley 414 is rotatably mounted in the middle of the horizontal rail 33, used to fix the end of the first traction rope 42, directly applying traction force to the horizontal rail 33 to drive the horizontal rail 33 to lift and lower.

[0043] 2. Power transmission process: One end of the first traction rope 42 is connected to the power assembly 2 (electric crane 21), and the other end passes sequentially through the first pulley 411, the second pulley 412, the third pulley 413, and the fourth pulley 414 to form a closed traction structure. The specific logic of power transmission is as follows: When the electric crane 21 starts and retracts the first traction rope 42, the first traction rope 42 is subjected to traction force, which first pulls the horizontal rail 33 upward through the fourth pulley 414 (at this time, the second sliding seat 35 slides along the vertical rail 32), realizing the first lifting and lowering; when the horizontal rail 33 rises to the top of the vertical rail 32 and forms a limit, the traction force of the first traction rope 42 can no longer pull the horizontal rail 33. At this time, the traction force is transmitted to the first sliding seat 34 through the third pulley 413 and the second pulley 412, which in turn pulls the vertical rail 32 upward along the support rail 31 (at this time, the first sliding seat 34 slides along the support rail 31), realizing the second lifting and lowering; when the electric crane 21 releases the first traction rope 42, under the action of the gravity of the horizontal rail 33, the vertical rail 32 and the working tool 5, the vertical rail 32 first descends. After the vertical rail 32 descends to the bottom of the support rail 31, the horizontal rail 33 continues to descend, completing the reset.

[0044] The design of pulley block 41 not only achieves efficient power transmission, but also saves effort, reduces the load on power component 2, and reduces energy consumption. At the same time, through the cooperation of multiple pulleys, it realizes automatic switching of secondary lifting, eliminating the need for manual control by operators, simplifying the operation process, and improving work efficiency.

[0045] The horizontal drive mechanism works in conjunction with the reset mechanism to enable the working tool 5 to move precisely and reset quickly along the horizontal track 33, solving the problems of inconvenient horizontal movement and cumbersome reset of the working tool 5 in the existing device, and ensuring the flatness and consistency of the wall operation.

[0046] 1. Horizontal Drive Mechanism: The horizontal drive mechanism consists of a horizontal motor 43, a horizontal pulley 431, and a second traction rope 432. The horizontal motor 43 is fixedly installed at one end of the horizontal track 33, serving as the power source for horizontal movement. The horizontal pulley 431 is rotatably mounted on a third sliding seat 36 and moves synchronously with the third sliding seat 36. One end of the second traction rope 432 is connected to the output end of the horizontal motor 43, and the other end wraps around the horizontal pulley 431 to form a traction structure. When the horizontal motor 43 starts, it drives the second traction rope 432 to wind or release by reversing forward and reverse, thereby pulling the third sliding seat 36 to move back and forth along the horizontal track 33. The working tool 5 moves synchronously with the third sliding seat 36, realizing horizontal operation on the wall. This design can precisely control the moving speed and distance of the working tool 5, avoid errors from manual operation, ensure the flatness of the wall surface, and eliminate the need for operators to manually push the working tool 5, reducing labor intensity.

[0047] 2. Reset Mechanism: The reset mechanism consists of a fifth pulley 433, a third traction rope 436, a first spring 437, a second spring 438, a first fixing pin 434, and a second fixing pin 435. The fifth pulley 433 is fixedly installed at the other end of the horizontal track 33 and is positioned opposite to the transverse motor 43. The first fixing pin 434 is mounted on the third sliding seat 36 and moves synchronously with the third sliding seat 36. The second fixing pin 435 is mounted on the horizontal track 33 at one end near the transverse motor 43 and serves as the fixed end. The third traction rope 436 passes around the fifth pulley 433, and its two ends are connected to the first fixing pin 434 and the second fixing pin 435 respectively through the first spring 437 and the second spring 438.

[0048] The working principle of the reset mechanism is as follows: When the horizontal motor 43 drives the third sliding seat 36 to move away from the horizontal motor 43, the first spring 437 is stretched and the second spring 438 is compressed, generating elastic potential energy. When a section of wall work is completed and reset is required, the horizontal motor 43 is turned off, and the first spring 437 and the second spring 438 release their elastic potential energy. Under the action of the spring's tension and thrust, the third traction rope 436 pulls the third sliding seat 36 back to its initial position quickly, eliminating the need for manual reset, significantly saving work time and improving work efficiency. Simultaneously, the elasticity of the springs also acts as a buffer, preventing a violent collision between the third sliding seat 36 and the end of the horizontal track 33 during reset, protecting components and extending the device's service life.

[0049] 1. Material Selection: The support rails 31, vertical rails 32, and horizontal rails 33 are all made of aluminum profiles. There are three main reasons for choosing aluminum profiles: First, aluminum profiles have high strength, enabling them to stably support the weight of the working tool 5 while withstanding the traction and impact forces during lifting, ensuring structural stability. Second, aluminum profiles are lightweight, reducing the overall weight of the device, making it easier for operators to push and move, and reducing labor intensity. Third, aluminum profiles are corrosion-resistant and rust-resistant, adapting to the complex environment of construction and extending the service life of the device. The first sliding seat 34, second sliding seat 35, and third sliding seat 36 adopt linear slider or roller guide structures. The two structures can be selected according to actual needs. Linear sliders offer high guiding accuracy and stability, while roller guides have low frictional resistance and smoother sliding, both meeting the usage requirements of the device.

[0050] 2. Adaptability of Working Tools 5: The mounting base and support frame on the third sliding seat 36 are specifically designed for installing working tools 5. The support frame is designed to adapt to the size and installation requirements of different working tools 5, enabling stable installation of various wall treatment tools such as wall planers, wall plasterers, and wall scrapers without the need for additional replacement of mounting components, thus demonstrating strong versatility. This design allows one device to meet the needs of various wall treatment operations, improving device utilization, reducing construction costs, and overcoming the shortcomings of poor versatility in existing devices.

[0051] The power unit 2 uses an electric crane 21, which has the advantages of sufficient power, simple operation, and good stability. It can provide stable traction for the secondary lifting of the rail lifting mechanism 3. At the same time, the start, stop, and speed of the electric crane 21 can be precisely controlled by a control switch, which allows the operator to adjust the lifting speed according to the work requirements. The electric crane 21 is installed on the top of the work box 16, which can effectively reduce vibration and prevent the vibration generated by the electric crane 21 from affecting the stability and work quality of the rail lifting mechanism 3.

[0052] The entire device has a simple operating logic and can be operated by a single person: the operator holds the handrail 13, pushes the device to the working position, starts the electric crane 21 through the control switch to realize the secondary lifting and lowering of the working tool 5, and adjusts it to a suitable working height; the horizontal motor 43 is started to drive the working tool 5 to move along the horizontal track 33 to perform wall work; after completing a section of work, the horizontal motor 43 is turned off, the reset mechanism automatically resets the working tool 5, and the above operation is repeated after adjusting the position of the device; during the operation, the working tool 5 can be powered through the socket 15 on the handrail 13, without the need to lay additional wires, making the operation convenient. Example 1

[0053] like Figures 1 to 10 As shown, the core structure of the track-type electric lifting device in this embodiment includes a vehicle body 1, a power component 2, a track lifting mechanism 3, a transmission component 4, a horizontal drive mechanism, a reset mechanism, and an auxiliary support structure. The components work together to achieve secondary lifting, horizontal movement, and rapid reset of the work tool 5, which is suitable for wall decoration construction scenarios. The specific structure, installation method, and cooperation relationship of each component are described in detail below.

[0054] The vehicle body 1 adopts a frame structure made of high-strength materials, ensuring a stable overall structure capable of bearing the weight of all components while facilitating flexible movement in construction scenarios. The front bottom of the vehicle body 1 is equipped with two directional wheels 11, and the rear bottom has a single omnidirectional wheel 12. The directional wheels 11 ensure stability during linear movement, preventing deviation during transport. The omnidirectional wheel 12 allows for free steering, and together with the directional wheels 11, enables the device to be flexibly positioned in confined spaces, allowing a single operator to push the device forward.

[0055] A handrail 13 is provided at the top of the end of the vehicle body 1. The handrail 13 is ergonomically designed for easy hand operation of the control device. The surface of the handrail 13 has an anti-slip structure to improve safety during operation. A fixing plate 14 is fixedly mounted on the handrail 13, and a power strip 15 is installed on the fixing plate 14. The power strip 15 is electrically connected to the power component 2 and can directly provide power to the work tool 5 without the need for additional temporary power lines, simplifying the operation process and avoiding the safety hazards caused by messy wires.

[0056] The vehicle body 1 has a work box 16 in the middle. The work box 16 adopts a closed frame structure and can be used to store the working tools 5 and related accessories. The top of the work box 16 is a flat mounting surface for fixing the power component 2. The work box 16 is fixedly connected to the frame of the vehicle body 1, and the connection is reinforced to effectively reduce the vibration generated by the power component 2 when it is working and prevent the vibration from being transmitted to the rail lifting mechanism 3 and affecting the stability of the operation.

[0057] The power unit 2 is an electric crane 21, which is fixedly installed on the top of the work box 16 as the power source for the entire device, providing stable traction for the secondary lifting of the rail lifting mechanism 3. The output end of the electric crane 21 is equipped with a traction rope drum for winding and releasing the first traction rope 42. The control switch of the electric crane 21 is located on the handrail 13, which allows the operator to control the start, stop, forward and reverse rotation of the electric crane 21 at any time, thereby precisely controlling the lifting action of the rail lifting mechanism 3.

[0058] The track lifting mechanism 3 includes a support track 31, a vertical track 32, a horizontal track 33, a first sliding seat 34, a second sliding seat 35, a third sliding seat 36, a mounting base, and a support frame. It is the core component for realizing the lifting and horizontal movement of the work tool 5. The specific structure and installation method of each component are as follows: In this embodiment, the support track 31, vertical track 32, and horizontal track 33 are all made of the same rectangular frame structure. The rectangular frame structure can improve the overall strength and stability of the track, while reducing the weight of the track itself, making it easier to move and lift the device.

[0059] The support rail 31 is vertically fixed to the front end of the vehicle body 1, serving as the fixed foundation for the entire rail lifting mechanism 3, and providing guidance and support for the sliding of the vertical rail 32. A first central shaft is located at the top of the support rail 31, horizontally positioned, with both ends extending from the rectangular frame of the support rail 31 for rotatably mounting the first pulley 411. A guide structure is provided on the inner side of the support rail 31, which cooperates with the first sliding seat 34 to allow the vertical rail 32 to slide along the vertical direction of the support rail 31.

[0060] The vertical track 32 is formed by two rectangular frames of the same specifications fixedly connected. The two rectangular frames are arranged in parallel and fixed as one unit, forming a composite structure that improves the load-bearing capacity and stability of the vertical track 32. The front rectangular frame of the vertical track 32 is fixedly connected to the first sliding seat 34, and the inner side of the rear rectangular frame is provided with a guide structure for cooperating with the second sliding seat 35 to allow the horizontal track 33 to slide along the vertical direction of the vertical track 32. A second central axis is provided at the top of the vertical track 32, and the second central axis is arranged in the same way as the first central axis, for rotatably mounting the third pulley 413.

[0061] The horizontal track 33 has a rectangular frame structure with a guide structure on its inner side for cooperating with the third sliding seat 36 to realize the horizontal movement of the working tool 5. The middle of the horizontal track 33 has a pulley mounting structure for rotatably mounting the fourth pulley 414.

[0062] The first sliding seat 34, the second sliding seat 35, and the third sliding seat 36 all adopt sliding components adapted to the guide structure of each track. Linear sliders or roller guide structures can be selected to ensure smooth sliding and precise guidance of each sliding seat, reducing frictional resistance during sliding and extending the service life of the device. The first sliding seat 34 is fixedly connected to the front rectangular frame of the vertical track 32 and embedded in the guide structure of the support track 31, achieving a sliding fit between the vertical track 32 and the support track 31. The second sliding seat 35 is fixedly connected to the bottom of the horizontal track 33 and embedded in the guide structure of the rear rectangular frame of the vertical track 32, achieving a sliding fit between the horizontal track 33 and the vertical track 32. The third sliding seat 36 is embedded in the guide structure of the horizontal track 33, and its top is equipped with a mounting base. A support frame is fixedly mounted on the mounting base. The angle of the support frame can be adjusted according to the installation requirements of the working tool 5. The working tool 5 is fixedly mounted on the support frame to ensure that the tool is stable and does not shake during operation.

[0063] The transmission assembly 4 includes a pulley block 41 and a first traction rope 42. The pulley block 41 consists of a first pulley 411, a second pulley 412, a third pulley 413, and a fourth pulley 414. All four pulleys are smooth-rotating and wear-resistant rolling pulleys to ensure efficient and stable power transmission. The first traction rope 42 is a high-strength traction rope that can withstand the weight of the track, sliding seat, and working tool 5, and is not easily broken or worn.

[0064] The first pulley 411 is rotatably mounted on the first central axis at the top of the support rail 31 to change the direction of force on the first traction rope 42; the second pulley 412 is rotatably mounted on the first sliding seat 34 and moves synchronously with the first sliding seat 34 and the vertical rail 32 to transmit traction force to the vertical rail 32; the third pulley 413 is rotatably mounted on the second central axis at the top of the vertical rail 32 as the power steering node for the lifting and lowering of the horizontal rail 33; the fourth pulley 414 is rotatably mounted on the pulley mounting structure in the middle of the horizontal rail 33 to cooperate with the first traction rope 42 to realize the lifting and lowering drive of the horizontal rail 33.

[0065] One end of the first traction rope 42 is fixed to the traction rope drum of the electric crane 21, and the other end is successively wound around the first pulley 411, the second pulley 412, the third pulley 413, and the fourth pulley 414. After winding around the fourth pulley 414, the first traction rope 42 then winds around the fourth pulley 414, the third pulley 413, and the second pulley 412 in reverse order, and finally winds back to the first pulley 411, fixing the end of the first traction rope 42 to the first pulley 411, forming a closed traction transmission structure. This ensures that the power of the power component 2 can be stably and efficiently transmitted to the horizontal track 33 and the vertical track 32, realizing a smooth switching of the secondary lifting action.

[0066] The horizontal drive mechanism includes a horizontal motor 43, a horizontal pulley 431, and a second traction rope 432. The horizontal motor 43 is fixedly installed at one end of the horizontal track 33 and serves as the power source for the horizontal movement of the work tool 5. It can precisely control the rotation speed, thereby controlling the movement speed and distance of the third sliding seat 36. The output end of the horizontal motor 43 is equipped with a drum for winding and releasing the second traction rope 432.

[0067] The transverse pulley 431 is rotatably mounted on the third sliding seat 36 and moves synchronously with the third sliding seat 36. One end of the second traction rope 432 is fixed to the drum of the transverse motor 43, and the other end is wound around the transverse pulley 431 to form a traction structure. When the transverse motor 43 rotates forward and reverse, by winding or releasing the second traction rope 432, the third sliding seat 36 is pulled to move back and forth along the guide structure of the horizontal track 33. The working tool 5 moves synchronously with the third sliding seat 36 to realize horizontal operation on the wall.

[0068] The reset mechanism includes a fifth pulley 433, a third traction rope 436, a first spring 437, a second spring 438, a first fixing pin 434, and a second fixing pin 435. The fifth pulley 433 is fixedly installed at the other end of the horizontal track 33 and is arranged opposite to the transverse motor 43. The first fixing pin 434 is arranged on the third sliding seat 36 and moves synchronously with the third sliding seat 36. The second fixing pin 435 is fixedly arranged on the horizontal track 33 at one end near the transverse motor 43.

[0069] The third traction rope 436 passes around the fifth pulley 433. One end of the rope is connected to the first fixing pin 434 via the first spring 437, and the other end is connected to the second fixing pin 435 via the second spring 438. Both the first spring 437 and the second spring 438 are elastically adapted tension and compression springs. When the third sliding seat 36 moves along the horizontal track 33, the first spring 437 and the second spring 438 will be stretched or compressed, storing elastic potential energy. When reset is required, the transverse motor 43 is turned off, the springs release elastic potential energy, and the third traction rope 436 pulls the third sliding seat 36 back to the initial position quickly, realizing the automatic reset of the working tool 5 without manual operation, improving work efficiency, and at the same time playing a buffering role to avoid violent collision between the third sliding seat 36 and the end of the horizontal track 33.

[0070] The working process of the track-type electric lifting device in this embodiment is as follows: The operator holds the handle 13 and pushes the device to the working wall position, adjusts the directional wheels 11 and the universal wheels 12 to make the device stable; the working tool 5 (which can be a wall planer, wall plasterer or wall scraper) is installed on the support frame of the third sliding seat 36, and the angle of the support frame is adjusted so that the working surface of the working tool 5 is in contact with the wall; the power plug of the working tool 5 is inserted into the socket 15 on the handle 13 to turn on the power.

[0071] Start the electric crane 21. The electric crane 21 winds up the first traction rope 42. Through the closed traction transmission structure, the traction force is first transmitted to the fourth pulley 414, pulling the horizontal rail 33 to slide upward along the guide structure of the vertical rail 32 through the second sliding seat 35, realizing the first lifting and lowering. When the horizontal rail 33 slides to the top of the vertical rail 32, the horizontal rail 33 and the vertical rail 32 form a mechanical limit. At this time, the traction force of the first traction rope 42 can no longer pull the horizontal rail 33. Then, it is transmitted to the first sliding seat 34 through the third pulley 413 and the second pulley 412, pulling the vertical rail 32 to slide upward along the guide structure of the support rail 31 through the first sliding seat 34, realizing the second lifting and lowering, until the working tool 5 is adjusted to a suitable working height, and the electric crane 21 is turned off.

[0072] The horizontal motor 43 is started, and by winding or releasing the second traction rope 432, the horizontal motor 43 drives the third sliding seat 36 to move along the horizontal track 33. The working tool 5 moves synchronously with the third sliding seat 36 to perform wall work. At this time, the first spring 437 and the second spring 438 deform and store elastic potential energy. After completing a section of wall work, the horizontal motor 43 is turned off, and the first spring 437 and the second spring 438 release their elastic potential energy, which pulls the third sliding seat 36 back to its initial position quickly via the third traction rope 436.

[0073] If the working height needs to be adjusted, control the electric crane 21 to reverse and release the first traction rope 42. Under the action of gravity, the vertical rail 32 will first descend along the support rail 31 to the bottom, and then the horizontal rail 33 will descend along the vertical rail 32 to the bottom. After adjusting the position of the device, repeat the above operation process. After the operation is completed, turn off all power, disassemble the working tools 5, move the device to the storage position, and tidy up the traction rope, wires and other components to complete the operation.

[0074] The track-type electric lifting device in this embodiment, through the rectangular frame structure track design, the double rectangular frame composite vertical track 32 design, the cooperation of the central shaft and pulleys, and the closed traction rope transmission structure, ensures the stability of the track lifting mechanism 3 and the high efficiency of power transmission; the components are precisely matched, the operation is simple, it can realize single-person operation, effectively improve construction efficiency and work quality, reduce labor intensity and safety hazards, and is suitable for a variety of wall decoration construction scenarios.

[0075] The specific embodiments of the present invention have been described in detail above, but they are merely examples, and the present invention is not equivalent to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to the present invention are also within the scope of the present invention. Therefore, all equivalent transformations and modifications made without departing from the spirit and scope of the present invention should be covered within the scope of the present invention.

Claims

1. A track-mounted electric lifting device, comprising a vehicle body (1), characterized in that, The vehicle body (1) is equipped with a power assembly (2) and a rail lifting mechanism (3); the rail lifting mechanism (3) includes a support rail (31), a vertical rail (32) and a horizontal rail (33); the vertical rail (32) is slidably mounted on the support rail (31) in the vertical direction, the horizontal rail (33) is slidably mounted on the vertical rail (32) in the vertical direction, and the working tool (5) is slidably mounted on the horizontal rail (33) in the horizontal direction; a transmission assembly (4) is provided between the support rail (31), the vertical rail (32) and the horizontal rail (33), the power assembly (2) drives the horizontal rail (33) to slide on the vertical rail (32) through the transmission assembly (4), and when the horizontal rail (33) rises to the top of the vertical rail (32), the transmission assembly (4) drives the vertical rail (32) to slide and rise on the support rail (31) to achieve secondary lifting.

2. The track-type electric lifting device according to claim 1, characterized in that, The support rail (31) is slidably provided with a first sliding seat (34), and the bottom of the vertical rail (32) is fixed on the first sliding seat (34); the vertical rail (32) is slidably provided with a second sliding seat (35), and the bottom of the horizontal rail (33) is fixed on the second sliding seat (35); the horizontal rail (33) is slidably provided with a third sliding seat (36), and the working tool (5) is installed on the third sliding seat (36).

3. A track-type electric lifting device according to claim 2, characterized in that, The transmission assembly (4) includes a pulley block (41) and a first traction rope (42), the first traction rope (42) being wound around the pulley block (41).

4. A track-type electric lifting device according to claim 3, characterized in that, The pulley assembly (41) includes a first pulley (411), a second pulley (412), a third pulley (413), and a fourth pulley (414); the first pulley (411) is rotatably disposed at the top of the support rail (31), the second pulley (412) is rotatably disposed on the first sliding seat (34), the third pulley (413) is rotatably disposed at the top of the vertical rail (32), and the fourth pulley (414) is rotatably disposed in the middle of the horizontal rail (33); one end of the first traction rope (42) is connected to the power assembly (2), and the other end of the first traction rope (42) passes sequentially around the first pulley (411), the second pulley (412), the third pulley (413), and the fourth pulley (414).

5. A track-type electric lifting device according to claim 2, characterized in that, A horizontal motor (43) is provided at one end of the horizontal track (33), and a horizontal pulley (431) is rotatably provided on the third sliding seat (36). A second traction rope (432) is provided between the horizontal pulley (431) and the horizontal motor (43) to drive the third sliding seat (36) to move along the horizontal track (33).

6. A track-type electric lifting device according to claim 5, characterized in that, The other end of the horizontal track (33) is provided with a fifth pulley (433), the third sliding seat (36) is provided with a first fixing pin (434), and the end of the horizontal track (33) where the transverse motor (43) is located is provided with a second fixing pin (435); a third traction rope (436) is wound around the fifth pulley (433), one end of the third traction rope (436) is connected to the first fixing pin (434) with a first spring (437), and the other end of the third traction rope (436) is connected to the second fixing pin (435) with a second spring (438). The first spring (437) and the second spring (438) are used for the rapid reset of the third sliding seat (36).

7. A track-type electric lifting device according to claim 1, characterized in that, The front bottom of the vehicle body (1) is provided with directional wheels (11) on both sides, and the rear bottom of the vehicle body (1) is provided with universal wheels (12).

8. A track-type electric lifting device according to claim 1, characterized in that, The vehicle body (1) has a handrail (13) at the top of its end. The handrail (13) has a fixing plate (14) on it. The fixing plate (14) has a power strip (15) installed on it. The power strip (15) is electrically connected to the power assembly (2). The power assembly (2) is an electric crane (21). The vehicle body (1) has a work box (16) in the middle. The electric crane (21) is installed on the top of the work box (16).

9. A track-type electric lifting device according to claim 1, characterized in that, The first sliding seat (34), the second sliding seat (35) and the third sliding seat (36) are linear sliders or roller guide structures; the support rail (31), the vertical rail (32) and the horizontal rail (33) are aluminum profile rails.

10. A track-type electric lifting device according to claim 1, characterized in that, The work tool (5) is a wall planer, wall plasterer, or wall scraper.

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