A jacking device

Abstract

This utility model discloses a lifting device; the lifting device includes: a guide assembly, a drive assembly, and a support assembly. The drive assembly is connected to the guide assembly, and the support assembly is disposed above the guide assembly and movably connected to the guide assembly. The drive assembly includes a drive cylinder arranged in a horizontal direction and a lifting part. The lifting part is drivenly connected to the drive cylinder and abuts against the support assembly. The drive cylinder drives the lifting part to rise or fall vertically, so that the support assembly rises or falls synchronously. This utility model uses a drive cylinder arranged in a horizontal direction in the drive assembly, and through the drive connection between the lifting part and the drive cylinder, converts the horizontal power into the vertical rising or falling motion of the lifting part, thereby driving the support assembly to move synchronously, improving the lifting accuracy. In addition, the horizontally arranged drive cylinder provides a stable power output for the lifting part, enhancing the stability of repeated positioning.

Description

Technical Field

[0001] This utility model relates to the field of lifting mechanism technology, and in particular to a lifting device. Background Technology

[0002] In numerous fields such as industrial automation, logistics, automotive repair, and medical equipment, precise vertical lifting or positioning operations are crucial for ensuring smooth production processes, stable equipment operation, and efficient work. Lifting mechanisms, as specialized mechanical devices for vertical lifting or positioning, play an indispensable role in these fields. They can accurately raise or lower loads to designated positions according to actual needs, providing the necessary conditions for subsequent processing, assembly, and handling operations, greatly improving production efficiency and operational convenience.

[0003] Currently, there are various types of lifting mechanisms on the market. Their core function—to achieve precise lifting and lowering of loads—is mainly accomplished through mechanical, hydraulic, pneumatic, or electric means.

[0004] Mechanical lifting mechanisms typically utilize the precise coordination of mechanical transmission components such as gears, lead screws, and connecting rods to convert rotary motion into linear motion, thereby achieving the lifting and lowering of the load. The advantages of this method are its relatively simple structure and low cost, but it has certain limitations in terms of lifting accuracy and load capacity.

[0005] Hydraulic lifting mechanisms utilize the pressure of hydraulic oil to transmit power. A hydraulic pump delivers the oil to a hydraulic cylinder, driving a piston to move and thus raising or lowering the load. Hydraulic lifting mechanisms have a large load capacity and can smoothly lift heavy objects. However, the hydraulic system is relatively complex, requiring strict control over the cleanliness and temperature of the hydraulic oil, and there is a risk of leakage, which may affect lifting accuracy and the normal operation of the equipment.

[0006] Pneumatic lifting mechanism: This type of mechanism uses compressed air as a power source and raises or lowers the load by extending and retracting a cylinder. Pneumatic lifting mechanisms are characterized by fast response and flexible operation. However, due to the compressibility of air, air pressure fluctuations are significant, resulting in relatively low lifting accuracy and poor stability in repeatability.

[0007] Electric lifting mechanism: This type of mechanism uses an electric motor as the power source, which drives a lead screw or rack and pinion mechanism through a reducer, coupling, and other transmission components to lift or lower the load. Electric lifting mechanisms offer advantages such as high control precision and convenient adjustment. However, the power and speed of the electric motor need to be properly matched according to the specific load and lifting speed. Furthermore, they may generate heat during prolonged operation, affecting the stability and lifespan of the equipment.

[0008] Although existing lifting mechanisms have achieved certain results in their respective application fields, most of them still adopt the vertical lifting method, and have exposed many problems in practical applications, especially in terms of accuracy and stability, which are difficult to meet the needs of modern mass automated production.

[0009] During vertical lifting, factors such as clearances in mechanical transmission components, pressure fluctuations in hydraulic or pneumatic systems, and errors in electric control systems make it difficult to achieve extremely high precision in the lifting position of the load. In some processing or assembly stages with extremely stringent positional accuracy requirements, this lack of precision can lead to product quality issues or even equipment failure. Furthermore, in mass automated production, the lifting mechanism needs to perform frequent repetitive positioning operations. However, existing vertical lifting mechanisms are susceptible to interference from various factors during repetitive positioning, such as air pressure fluctuations, hydraulic system leaks, and wear of mechanical components, resulting in some deviation in position each time and making it impossible to guarantee consistent height. This instability severely impacts product quality and production efficiency, increasing scrap rates and production costs.

[0010] In summary, existing lifting mechanisms suffer from low accuracy and unstable repeatability in vertical lifting, making them unsuitable for the requirements of mass automated production. Therefore, developing a lifting mechanism with higher accuracy and stability is of significant practical importance. Utility Model Content

[0011] The purpose of this invention is to overcome the shortcomings of the prior art and provide a lifting device.

[0012] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0013] This utility model provides a lifting device, including: a guide assembly, a drive assembly, and a support assembly. The drive assembly is connected to the guide assembly, and the support assembly is disposed above the guide assembly and movably connected to the guide assembly. The drive assembly includes a drive cylinder and a lifting part arranged in a horizontal direction. The lifting part is throttledly connected to the drive cylinder and abuts against the support assembly. The drive cylinder drives the lifting part to rise or fall in a vertical direction, so that the support assembly rises or falls synchronously.

[0014] In one specific embodiment, the lifting part includes a lower lifting member and an upper lifting member. The driving cylinder is provided with a piston rod, the lower lifting member is throttledly connected to the piston rod, the lower lifting member is provided with a ramp, and the upper lifting member is slidably connected to the ramp. When the driving cylinder drives the piston rod to extend, the lower lifting member moves forward so that the upper lifting member slides towards the upper end of the ramp, and the support assembly rises synchronously. When the driving cylinder drives the piston rod to retract, the lower lifting member moves backward so that the upper lifting member slides towards the lower end of the ramp, and the support assembly descends synchronously.

[0015] In one specific embodiment, the lifting upper part is provided with rollers, and the uppermost end of the ramp is provided with a horizontal support surface. The rollers are slidably connected to the ramp. When the rollers slide to the horizontal support surface, the support assembly is at its highest position.

[0016] In one specific embodiment, the lifting lower component is provided with two ramps that are staggered front and rear, and a limiting groove is formed between the two ramps; when the support component is in the lowest position, the roller abuts against the limiting groove.

[0017] In one specific embodiment, the lifting part further includes a base, the base being connected to the guide assembly, and the lower lifting component being slidably connected to the base.

[0018] In one specific embodiment, the front end of the lifting lower part is further provided with a fixing block, the fixing block is connected to the guide component, and the fixing block is connected to a buffer; when the support component is in the highest position, the lifting lower part abuts against the buffer.

[0019] In one specific embodiment, a connector is also provided between the piston rod and the lifting lower part.

[0020] In one specific embodiment, the rear end of the lifting member is further provided with a guide seat, the guide seat is connected to the guide assembly, and the piston rod passes through the guide seat and is connected to the connector.

[0021] In one specific embodiment, the guide assembly includes a mounting frame, the drive assembly is connected to the mounting frame, the mounting frame is provided with a bearing seat, the bearing seat is movably connected to a guide shaft, and the support assembly is connected to the guide shaft.

[0022] In one specific embodiment, the support assembly includes a lifting plate, a support column, and a support plate. The lifting plate is connected to the guide shaft, the support column is connected to the lifting plate, and the support plate is connected to the support column.

[0023] The lifting device of this utility model has the following advantages compared with the prior art: By using a horizontally positioned drive cylinder as the driving component, and through the transmission connection between the lifting part and the drive cylinder, the horizontal power is cleverly converted into the vertical upward or downward movement of the lifting part, thereby driving the support component to move synchronously. This unique power transmission method avoids the accuracy loss caused by various factors in traditional vertical lifting, and can more accurately control the lifting position of the support component, greatly improving the lifting accuracy. This meets the needs of processing or assembly processes with extremely strict positional accuracy requirements, and effectively reduces product quality problems caused by insufficient accuracy. In addition, the horizontally positioned drive cylinder provides a stable and reliable power output for the lifting part. Because the drive cylinder is horizontally positioned, the pressure fluctuations during its operation have a relatively small impact on the vertical movement of the lifting part. Furthermore, through a reasonable mechanical transmission design, the impact of wear and clearance changes between mechanical parts on repeated positioning is reduced. Therefore, in multiple repeated positioning operations, the support component can return to the preset position more accurately, ensuring the height consistency of each positioning and significantly enhancing the stability of repeated positioning.

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A three-dimensional schematic diagram of the lifting device provided by this utility model;

[0027] Figure 2 A front view schematic diagram of the lifting device provided by this utility model;

[0028] Figure 3 A three-dimensional schematic diagram of the driving component provided by this utility model;

[0029] Figure 4 A front view schematic diagram of the driving component provided by this utility model;

[0030] Figure 5 An exploded view of the drive component provided by this utility model;

[0031] Figure 6 A three-dimensional schematic diagram of the guide component provided by this utility model;

[0032] Figure 7A three-dimensional schematic diagram of the support component provided by this utility model.

[0033] Figure label:

[0034] Guide assembly 10, mounting bracket 11, bearing seat 12, guide shaft 13, drive assembly 20, drive cylinder 21, piston rod 211, lifting lower part 22, ramp 221, horizontal support surface 222, limiting groove 223, lifting upper part 23, roller 231, base 24, fixing block 25, buffer 26, connector 27, guide seat 28, support assembly 30, lifting plate 31, support column 32, support plate 33, support 34. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0037] In the description of this utility model, 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", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] 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 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.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0042] See Figures 1 to 7 As shown, this utility model discloses a specific embodiment of a lifting device, including: a guide component 10, a drive component 20, and a support component 30. The drive component 20 is connected to the guide component 10, and the support component 30 is disposed above the guide component 10 and movably connected to the guide component 10. The drive component 20 includes a drive cylinder 21 arranged in a horizontal direction and a lifting part. The lifting part is throttledly connected to the drive cylinder 21, and the lifting part abuts against the support component 30. The drive cylinder 21 drives the lifting part to rise or fall in a vertical direction, so that the support component 30 rises or falls synchronously.

[0043] Specifically, firstly, the guide assembly 10 is securely installed. It serves as the foundation support and guiding structure for the entire device, providing an installation reference and motion guide for other components. For example, the guide assembly 10 can be designed to include two parallel and vertically arranged guide rails, which are fixed to the working platform with bolts to ensure their verticality and stability. Next, the drive assembly 20 is installed and connected to the guide assembly 10. The drive cylinder 21 in the drive assembly 20 is arranged horizontally and fixedly connected to the guide assembly 10 via a cylinder seat, ensuring that the drive cylinder 21 remains in a fixed position and does not wobble during operation. The lifting section is connected to the drive cylinder 21 via a transmission connection, which can be a linkage mechanism or a rack and pinion mechanism. Taking a linkage mechanism as an example, a connecting rod is hinged to the end of the piston rod 211 of the drive cylinder 21, and the other end of the connecting rod is hinged to the lifting section. The extension and retraction of the piston rod 211 drives the connecting rod to swing, thereby realizing the lifting movement of the lifting section. Finally, install the support component 30, positioning it above the guide component 10 and movably connecting it to the guide component 10, while simultaneously allowing the lifting part to abut against the support component 30. The support component 30 can be designed as a platform structure with a slider installed beneath it. The slider engages with the guide rail of the guide component 10, allowing the support component 30 to slide smoothly vertically along the guide rail. The contact point between the lifting part and the support component 30 can be designed as an inclined surface contact or a rolling wheel contact to reduce friction and ensure smooth movement.

[0044] When the support assembly 30 needs to be lifted, the drive cylinder 21 is activated, and the piston rod 211 of the drive cylinder 21 extends outward. Through a transmission connection, the extension and retraction of the piston rod 211 drives the lifting part to rise vertically. Since the lifting part abuts against the support assembly 30, the rise of the lifting part pushes the support assembly 30 to move upward synchronously along the guide rail of the guide assembly 10, thereby realizing the lifting operation of the load. When the support assembly 30 needs to be lowered, the piston rod 211 of the drive cylinder 21 is controlled to retract inward. Similarly, through a transmission connection, the lifting part descends vertically under the action of the drive cylinder 21, and the support assembly 30, due to its own gravity, moves downward synchronously along the guide rail of the guide assembly 10 as the lifting part descends, completing the lowering operation of the load.

[0045] In other words, by using a horizontally positioned drive cylinder 21 in the drive assembly 20, and through a transmission connection between the lifting unit and the drive cylinder 21, the horizontal power is cleverly converted into the vertical upward or downward movement of the lifting unit, thereby driving the support assembly 30 to move synchronously. This unique power transmission method avoids the accuracy loss caused by various factors in traditional vertical lifting, enabling more precise control of the lifting position of the support assembly 30, greatly improving lifting accuracy, meeting the needs of processing or assembly processes with extremely strict positional accuracy requirements, and effectively reducing product quality problems caused by insufficient accuracy. In addition, the horizontally positioned drive cylinder 21 provides a stable and reliable power output to the lifting unit. Because the drive cylinder 21 is horizontally positioned, the pressure fluctuations during its operation have a relatively small impact on the vertical movement of the lifting unit. Furthermore, through a reasonable mechanical transmission design, the impact of wear and clearance changes between mechanical parts on repeated positioning is reduced. Therefore, in multiple repeated positioning operations, the support assembly 30 can return to the preset position more accurately, ensuring the consistency of height in each positioning and significantly enhancing the stability of repeated positioning. Furthermore, the guide component 10 provides precise guidance for the movement of the support component 30, ensuring that the support component 30 can only move vertically along the guide rail, reducing offset and swaying during movement. Compared to lifting mechanisms without guidance or with inaccurate guidance, this device ensures that the support component 30 maintains a stable trajectory during lifting and lowering, significantly improving the positioning accuracy of the lifting. In addition, thanks to its high precision and stable repeatability, this device enables the support component 30 to precisely lift, lower, and position the load during different batches of production. In mass automated production, this is crucial for ensuring high consistency in product processing and assembly. For example, in the assembly of electronic products, precise lifting and positioning ensures accurate installation of various components, avoiding problems such as poor contact and functional abnormalities caused by positional deviations, effectively improving the product qualification rate and ensuring product quality stability.

[0046] See Figures 2 to 5 As shown, in one embodiment, the lifting part includes a lower lifting member 22 and an upper lifting member 23. The driving cylinder 21 is provided with a piston rod 211. The lower lifting member 22 is tractively connected to the piston rod 211. The lower lifting member 22 is provided with a ramp 221. The upper lifting member 23 is slidably connected to the ramp 221. When the driving cylinder 21 drives the piston rod 211 to extend, the lower lifting member 22 moves forward so that the upper lifting member 23 slides towards the upper end of the ramp 221, and the support assembly 30 rises synchronously. When the driving cylinder 21 drives the piston rod 211 to retract, the lower lifting member 22 moves backward so that the upper lifting member 23 slides towards the lower end of the ramp 221, and the support assembly 30 descends synchronously.

[0047] Specifically, the lower lifting component 22 is installed at the end of the piston rod 211 of the drive cylinder 21. A suitable connection method, such as a threaded connection or a pin connection, ensures that the lower lifting component 22 can move back and forth with the extension and retraction of the piston rod 211. The lower lifting component 22 is designed with a ramp 221 of a specific angle (e.g., 30-45 degrees) and length. The surface of the ramp 221 needs to be finely machined to ensure smoothness and reduce friction. The upper lifting component 23 is installed at a suitable position on the support assembly 30, allowing it to slide smoothly against the ramp 221 of the lower lifting component 22. Rollers 231 or sliders can be installed on the upper lifting component 23 to contact the ramp 221, reducing friction during sliding and improving the smoothness of movement.

[0048] When the support assembly 30 needs to be lifted, the drive cylinder 21 is activated, and the piston rod 211 of the drive cylinder 21 extends outward. Since the lower lifting member 22 is connected to the piston rod 211, the extension of the piston rod 211 will drive the lower lifting member 22 to move forward. As the lower lifting member 22 moves forward, the upper lifting member 23 slides upward along the ramp 221. Because the ramp 221 has a certain inclination angle, the upper lifting member 23 will gradually convert the horizontal movement into vertical upward movement during the sliding process, thereby pushing the support assembly 30 to rise synchronously along the guide assembly 10. When the support assembly 30 rises to the designated position, the operation of the drive cylinder 21 is stopped. When the support assembly 30 needs to be lowered, the piston rod 211 of the drive cylinder 21 is controlled to retract inward. The retraction of the piston rod 211 drives the lower lifting member 22 to move backward, while the upper lifting member 23 slides downward along the ramp 221. Similarly, due to the action of the ramp 221, the lifting upper part 23 converts the horizontal backward movement into the vertical downward movement. The support component 30 descends synchronously along the guide component 10 under the drive of the lifting upper part 23. When the support component 30 descends to the appropriate position, the operation of the drive cylinder 21 is stopped.

[0049] In other words, during the lifting process, once the support assembly 30 reaches the designated position, even if the drive cylinder 21 stops working, the lifting upper part 23, sliding towards the upper end of the ramp 221, will experience a downward component force and a downward frictional force along the ramp 221 under the influence of gravity and the ramp 221. The resultant force of these two forces causes the lifting upper part 23 to press tightly against the ramp 221, creating a self-locking effect. This self-locking mechanism effectively prevents the support assembly 30 from accidentally descending under external forces (such as vibration, minor collisions, etc.), ensuring the stability and safety of the device in the lifting state. For example, in some precision machining scenarios where equipment stability is extremely important, this self-locking function can prevent the machining accuracy from being affected by equipment shaking. During the descent, the lifting upper part 23 slides downward along the ramp 221, and the precise angle and smooth surface of the ramp 221 ensure the stability of the movement trajectory of the lifting upper part 23. Each time it descends, the lifting upper part 23 slides along the same path, allowing the support assembly 30 to accurately return to the preset descending position. Furthermore, the conversion between horizontal and vertical movement via the ramp 221 is an efficient and rational power transmission method. The horizontal force generated by the drive cylinder 21, after conversion by the ramp 221, can be accurately transformed into the vertical lifting force required by the support assembly 30. This conversion method avoids complex mechanical transmission mechanisms, reducing energy loss and error accumulation during power transmission. For example, compared to some devices that use multi-stage gear transmission or chain transmission for lifting, this device's power transmission is more direct and efficient, transmitting the power of the drive cylinder 21 to the support assembly 30 more quickly, improving the device's response speed. In addition, the sliding connection between the lifting upper part 23 and the ramp 221 makes the movement of the support assembly 30 smoother during ascent and descent. The smooth surface and suitable inclination angle of the ramp 221 reduce impact and vibration during movement, avoiding the influence of inertial forces generated by sudden start or stop on the device. In applications where high stability of motion is required, such as the lifting of medical equipment and the adjustment of optical instruments, this stable motion characteristic can ensure the normal operation and effectiveness of the equipment, and reduce equipment damage or measurement errors caused by unstable motion.

[0050] See Figures 2 to 5 As shown, in one embodiment, the lifting upper part 23 is provided with rollers 231, and the uppermost end of the ramp 221 is provided with a horizontal support surface 222. The rollers 231 are slidably connected to the ramp 221. When the rollers 231 slide to the horizontal support surface 222, the support assembly 30 is at its highest position.

[0051] Specifically, the lifting upper component 23 can be designed as a block structure with a certain strength, with a mounting groove on the side that contacts the ramp 221 for mounting the roller 231. The roller 231 is selected using high-precision, low-friction bearing rollers to ensure smooth rotation when sliding on the ramp 221, reducing energy loss and wear. The roller 231 is mounted in the mounting groove of the lifting upper component 23 via shafts and bearings, and secured with snap rings or nuts to prevent it from falling off during movement. The ramp 221 is set on the lifting lower component 22, and its angle and length are precisely calculated and designed based on the lifting height and the stroke of the drive cylinder 21. Generally, the selection of the ramp 221 angle should comprehensively consider factors such as the magnitude of the lifting force, the smoothness of movement, and the self-locking effect. For example, a smaller ramp angle 221 can make the lifting process smoother, but requires a longer ramp 221 to achieve the same lifting height; a larger ramp angle 221 can shorten the ramp 221 length, but may increase the impact force during lifting. The uppermost end of the ramp 221 is designed with a horizontal support surface 222. The length and width of the horizontal support surface 222 must be reasonably determined according to the size of the roller 231 to ensure that the roller 231 can be stably placed on the horizontal support surface 222. At the same time, the ramp 221 and the horizontal support surface 222 are finely machined to ensure their surface smoothness and flatness, thereby reducing friction and vibration when the roller 231 slides.

[0052] When the piston rod 211 of the drive cylinder 21 extends, it drives the lower lifting member 22 to move forward. The roller 231 on the upper lifting member 23 slides upward along the ramp 221. Due to the inclination of the ramp 221, the roller 231 gradually converts its horizontal movement into a vertical upward movement, thereby pushing the support assembly 30 upward along the guide assembly 10. As the lower lifting member 22 continues to move forward, the roller 231 gradually approaches the uppermost point of the ramp 221. When the roller 231 slides to the horizontal support surface 222, the support assembly 30 reaches its highest position. At this time, the horizontal support surface 222 provides a stable support platform for the roller 231, preventing the support assembly 30 from accidentally descending under gravity or other external forces. When the support assembly 30 needs to be lowered, the piston rod 211 of the control drive cylinder 21 retracts, causing the lifting lower part 22 to move backward. Under the weight of the support assembly 30 itself, the roller 231 slides off the horizontal support surface 222 and slides down the ramp 221. The ramp 221 converts the vertical downward movement of the roller 231 into a horizontal backward movement, causing the lifting lower part 22 to move backward along with the piston rod 211. The support assembly 30 then moves downward along the guide assembly 10 until it reaches the designated position.

[0053] In other words, the friction between the roller 231 on the lifting upper part 23 and the ramp 221 is rolling friction, which has less frictional force than sliding friction. During lifting and lowering, the roller 231 can roll smoothly on the ramp 221, greatly reducing frictional resistance during movement and reducing energy loss. At the same time, the vibration generated by rolling friction is much smaller than that of sliding friction, making the movement of the support assembly 30 more stable. For example, in some precision machining equipment with extremely high requirements for motion stability, this stable motion characteristic can prevent the processing accuracy from being affected by equipment vibration and improve product quality. In addition, when the roller 231 slides on the ramp 221, especially at the moment of starting to slide and just before reaching or sliding off the horizontal support surface 222, the rolling of the roller 231 can play a certain buffering role. It can absorb and disperse some of the impact force and reduce the impact of inertial forces generated by sudden start or stop on the device. For example, during the lifting process, when the roller 231 approaches the top of the ramp 221, it will not experience a large impact due to a sudden arrival at the horizontal plane, but will smoothly transition to the horizontal support surface 222, ensuring the stability and reliability of the entire lifting process. Furthermore, the horizontal support surface 222 at the top of the ramp 221 provides a stable support platform for the roller 231. When the support assembly 30 rises to its highest position, the roller 231 rests on the horizontal support surface 222. At this time, the horizontal support surface 222 can withstand the weight of the support assembly 30 and its load, preventing the support assembly 30 from descending under gravity. Compared to designs without the horizontal support surface 222, this structure greatly enhances reliability and ensures the safety of the device in the lifting state. For example, in situations requiring prolonged lifting, such as the maintenance and installation of large equipment, the horizontal support surface 222 can effectively prevent the support assembly 30 from accidentally descending, ensuring the safety of personnel and equipment.

[0054] See Figures 2 to 5 As shown, in one embodiment, the lifting lower component 22 is provided with two ramps 221 that are staggered front and rear, and a limiting groove 223 is formed between the two ramps 221; when the support component 30 is in the lowest position, the roller 231 abuts against the limiting groove 223.

[0055] Specifically, the upper lifting component 23 is equipped with two rollers 231, corresponding to two staggered ramps 221. When the support assembly 30 is in its lowest position, the rear roller 231 abuts against the limiting groove 223. When the piston rod 211 of the drive cylinder 21 retracts, it drives the lower lifting component 22 to move backward. The rollers 231 on the upper lifting component 23 slide down the ramp 221, and as the lower lifting component 22 moves backward, the rear rollers 231 gradually approach the limiting groove 223 between the two ramps 221. When the support assembly 30 descends to its lowest position, the rear rollers 231 accurately abut against the limiting groove 223. At this time, the limiting groove 223 limits the rollers 231, preventing the support assembly 30 from continuing to descend under gravity or other external forces, ensuring the safety of the device in its lowest position. When the support assembly 30 needs to be raised, the piston rod 211 of the drive cylinder 21 extends, driving the lower lifting member 22 to move forward. Since the rear roller 231 abuts against the limiting groove 223, the forward movement of the lower lifting member 22 pushes the rear roller 231 upward along the inclined surface of the limiting groove 223, and gradually slides towards the ramp 221. As the roller 231 slides on the ramp 221, the support assembly 30 moves upward along the guide assembly 10 under the drive of the upper lifting member 23, achieving the lifting function.

[0056] In other words, the limiting groove 223 formed between the two staggered ramps 221 on the lifting lower component 22 provides a clear stopping position for the rear roller 231. When the support assembly 30 descends to its lowest position, the rear roller 231 accurately abuts within the limiting groove 223, achieving precise positioning of the support assembly 30 at its lowest position. Compared to a single ramp 221 design, this design avoids the problem of inaccurate descent position of the support assembly 30 caused by factors such as mechanical clearance and uneven friction, improving positioning accuracy and reliability. Furthermore, when the support assembly 30 descends to its lowest position, the rear roller 231 abuts within the limiting groove 223, which acts as a buffer and guide, preventing impact and vibration caused by sudden stopping of the roller 231. Similarly, when rising from the lowest position, the roller 231 smoothly transitions from the limiting groove 223 to the ramp 221, reducing the impact force during startup.

[0057] In one embodiment, baffles are provided on both sides of the ramp 221 to prevent the lifting upper part 23 from detaching from the ramp 221.

[0058] Specifically, the length and height of the baffle are determined based on the dimensions of the lifting upper part 23 and the specifications of the ramp 221. The length of the baffle must be sufficient to cover the entire movement area of ​​the ramp 221, ensuring that the baffle can effectively block the lifting upper part 23 from sliding on the ramp 221 regardless of its position. The height of the baffle must be determined based on the height and range of motion of the lifting upper part 23, ensuring that the baffle effectively prevents the lifting upper part 23 from detaching from the ramp 221 when it reaches its highest or lowest position. The baffle can be a straight plate shape, which is simple to manufacture, has low cost, and can meet basic blocking functions.

[0059] In other words, the baffles installed on both sides of the ramp 221 effectively prevent the lifting component 23 from detaching from the ramp 221 during movement due to various reasons (such as vibration, impact, operational errors, etc.). If the lifting component 23 detaches from the ramp 221, it may cause the support assembly 30 to descend uncontrollably, leading to equipment damage, personnel injuries, and other safety accidents. The baffles add a safety barrier to the device, greatly improving its safety and reliability. Furthermore, the baffles ensure that the lifting component 23 always moves along a predetermined trajectory on the ramp 221, making the lifting and lowering process of the support assembly 30 more stable and reliable. On an automated production line, a stable lifting device can guarantee product processing quality and production efficiency. If the lifting component 23 detaches from the ramp 221, it will cause abnormal movement of the support assembly 30, affecting the normal operation of the entire production process.

[0060] See Figures 2 to 5 As shown, in one embodiment, the lifting part further includes a base 24, which is connected to the guide assembly 10, and the lifting lower part 22 is slidably connected to the base 24.

[0061] Specifically, the base 24 is provided with a sliding groove, and the lifting lower part 22 is provided with a sliding block corresponding to the sliding groove. The base 24 can be installed on the mounting bracket 11 of the guide assembly 10 by means of bolt connection.

[0062] In other words, the base 24 is connected to the guide assembly 10, providing a stable guiding foundation for the movement of the lifting lower part 22. The base 24 can restrict the movement direction of the lifting lower part 22, ensuring that it can only slide along a predetermined trajectory, thus preventing problems such as deviation and swaying during movement and improving the overall stability of the lifting unit. In addition, the cooperative design of the sliding groove and the sliding block makes the friction between the lifting lower part 22 and the base 24 more uniform, reducing vibration caused by uneven friction. Furthermore, during movement, the lifting lower part 22 will be subjected to various forces, such as driving force, friction, and load gravity. The structure of the base 24 and the sliding groove and sliding block can distribute these forces to various components, avoiding local stress concentration, reducing the risk of component damage, and extending the service life of the device.

[0063] See Figures 2 to 5 As shown, in one embodiment, the front end of the lifting lower part 22 is further provided with a fixing block 25, the fixing block 25 is connected to the guide component 10, and the fixing block 25 is connected to a buffer 26; when the support component 30 is in the highest position, the lifting lower part 22 abuts against the buffer 26.

[0064] Specifically, the fixing block 25 can be installed on the mounting bracket 11 of the guide assembly 10 by bolt connection. If the buffer 26 has a threaded interface, a corresponding threaded hole can be machined on the fixing block 25, and the buffer 26 can be installed on the fixing block 25 by thread connection. The buffer 26 is a hydraulic buffer, which can reduce the impact of the lifting lower part 22 movement.

[0065] In other words, the hydraulic damper 26 can gradually absorb and dissipate the impact energy generated during the movement of the lower lifting component 22 through the flow and damping effect of the hydraulic oil inside, thereby greatly reducing the impact force of the lower lifting component 22 on other components. In addition, the hydraulic damper 26 enables the lower lifting component 22 to stop flexibly when it reaches the foremost position, avoiding the rebound and shaking that occurs when it stops rigidly. This makes the lifting and lowering process of the support assembly 30 more stable and improves the movement accuracy and controllability of the entire lifting device.

[0066] See Figures 2 to 5 As shown, in one embodiment, a connector 27 is further provided between the piston rod 211 and the lifting member 22.

[0067] Specifically, the connector 27, as the connecting component between the piston rod 211 and the lower lifting component 22, can effectively transmit the force generated by the piston rod 211. Through reasonable design and selection of appropriate connection methods, the connector 27 can withstand greater tensile, compressive, and torque forces, ensuring that the force of the piston rod 211 can be stably transmitted to the lower lifting component 22 during the operation of the lifting device, without problems such as loosening or breakage, thus improving the reliability and stability of the entire device.

[0068] See Figures 2 to 5 As shown, in one embodiment, the rear end of the lifting member 22 is further provided with a guide seat 28, the guide seat 28 is connected to the guide assembly 10, and the piston rod 211 passes through the guide seat 28 and is connected to the connector 27.

[0069] Specifically, the guide seat 28 can be bolted to the mounting bracket 11 of the guide assembly 10. The guide seat 28 provides accurate guidance for the piston rod 211, ensuring that the movement trajectory of the piston rod 211 strictly follows the design requirements. In addition, the design of the piston rod 211 passing through the guide seat 28 limits the radial wobble of the piston rod 211, making the piston rod 211 more stable during movement.

[0070] See Figure 1 and Figure 6 As shown, in one embodiment, the guide assembly 10 includes a mounting frame 11, the drive assembly 20 is connected to the mounting frame 11, the mounting frame 11 is provided with a bearing seat 12, the bearing seat 12 is movably connected to a guide shaft 13, and the support assembly 30 is connected to the guide shaft 13.

[0071] Specifically, a bearing is housed within the bearing housing 12, and the guide shaft 13 is movably connected to the bearing. The guide shaft 13 and bearing housing 12 in the guide assembly 10 provide precise guidance for the support assembly 30, enabling it to move along a predetermined trajectory. This reduces deviations and swaying during movement, ensures verticality during lifting and lowering, and improves the motion accuracy of the device. This meets the requirements of applications with high positional accuracy, such as the lifting and positioning of precision machining equipment. Due to the stable connection between the guide shaft 13 and bearing housing 12, and the precise fit between the support assembly 30 and the guide shaft 13, the accumulation of motion errors is effectively reduced during multiple movements of the lifting device. Each time the device moves, the support assembly 30 follows an accurate path, avoiding excessive motion deviations caused by error accumulation and ensuring the long-term stability and reliability of the device.

[0072] See Figure 1 and Figure 7 As shown, in one embodiment, the support assembly 30 includes a lifting plate 31, a support column 32, and a support plate 33. The lifting plate 31 is connected to the guide shaft 13, the support column 32 is connected to the lifting plate 31, and the support plate 33 is connected to the support column 32.

[0073] Specifically, several support columns 32 are provided on both sides of the lifting plate 31. The support columns 32 are fixed to the lifting plate 31 by the supports 34. Two support columns 32 form a group and are connected to a support plate 33, so that multiple support plates 33 are arranged side by side. The lifting plate 31 can be connected to the guide shaft 13 by bolts.

[0074] In other words, the parallel arrangement of multiple support plates 33, connected to the lifting plate 31 via support columns 32, allows for the even distribution of the weight of the supported object across the support columns 32 and the lifting plate 31. For example, when supporting a large, heavy piece of equipment, this uniform stress distribution prevents localized stress concentration, thus preventing deformation or damage to the lifting plate 31 and support columns 32, thereby increasing the overall load-bearing capacity of the support assembly 30. Furthermore, the grouping of support columns 32 and the parallel arrangement of support plates 33 form a stable frame structure, increasing the overall rigidity of the support assembly 30. During the lifting process, this rigid structure effectively resists external forces, reducing swaying and vibration, and ensuring the stability and safety of the supported object. Additionally, the support columns 32 are fixed to the lifting plate 31 via supports 34, further enhancing structural strength.

[0075] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A lifting device, characterized in that, include: The system includes a guide assembly, a drive assembly, and a support assembly. The drive assembly is connected to the guide assembly, and the support assembly is disposed above the guide assembly and movably connected to it. The drive assembly includes a drive cylinder and a lifting part arranged in a horizontal direction. The lifting part is throttledly connected to the drive cylinder and abuts against the support assembly. The drive cylinder drives the lifting part to rise or fall vertically, so that the support assembly rises or falls synchronously.

2. The lifting device according to claim 1, characterized in that, The lifting section includes a lower lifting member and an upper lifting member. The driving cylinder is equipped with a piston rod. The lower lifting member is throttledly connected to the piston rod. The lower lifting member is equipped with a ramp, and the upper lifting member is slidably connected to the ramp. When the driving cylinder drives the piston rod to extend, the lower lifting member moves forward, causing the upper lifting member to slide towards the upper end of the ramp, and the support assembly rises synchronously. When the driving cylinder drives the piston rod to retract, the lower lifting member moves backward, causing the upper lifting member to slide towards the lower end of the ramp, and the support assembly descends synchronously.

3. The lifting device according to claim 2, characterized in that, The lifting component is equipped with rollers, and the uppermost end of the ramp is provided with a horizontal support surface. The rollers are slidably connected to the ramp. When the rollers slide to the horizontal support surface, the support assembly is at its highest position.

4. The lifting device according to claim 3, characterized in that, The lifting lower component is provided with two ramps that are staggered front and rear, and a limiting groove is formed between the two ramps; when the support assembly is in the lowest position, the roller abuts against the limiting groove.

5. The lifting device according to claim 2, characterized in that, The lifting part also includes a base, which is connected to the guide assembly, and the lower lifting component is slidably connected to the base.

6. The lifting device according to claim 3, characterized in that, The front end of the lifting lower part is also provided with a fixing block, which is connected to the guide component and a buffer is connected to the fixing block; when the support component is in the highest position, the lifting lower part abuts against the buffer.

7. The lifting device according to claim 2, characterized in that, A connector is also provided between the piston rod and the lifting lower part.

8. The lifting device according to claim 7, characterized in that, The rear end of the lifting lower part is also provided with a guide seat, which is connected to the guide assembly, and the piston rod passes through the guide seat and is connected to the connector.

9. The lifting device according to claim 1, characterized in that, The guide assembly includes a mounting frame, the drive assembly is connected to the mounting frame, the mounting frame is provided with a bearing seat, the bearing seat is movably connected to a guide shaft, and the support assembly is connected to the guide shaft.

10. The lifting device according to claim 9, characterized in that, The support assembly includes a lifting plate, a support column, and a support plate. The lifting plate is connected to the guide shaft, the support column is connected to the lifting plate, and the support plate is connected to the support column.

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