A lifting device

Abstract

This utility model belongs to the field of hoisting technology and discloses a hoisting device. The hoisting device includes: a base plate, support legs, a hoisting mechanism, a frame, and a support mechanism. The support legs are fixedly connected to the bottom of the base plate. The hoisting mechanism includes a transmission component and a hoisting plate. The transmission component is driven by the hoisting plate, enabling the hoisting plate to rise and fall. The frame is fixedly connected to the base plate and supports the hoisting mechanism. The support mechanism includes a first driving component, a sliding column, a support column, and an adjusting component. The sliding column is installed inside the support legs. The adjusting component is driven by the sliding column and the support column. The first driving component drives the adjusting component to move the support column away from or towards the sliding column. This hoisting device ensures stable support for the overall structure during hoisting, preventing damage to items caused by swaying.

Description

Technical Field

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

[0002] Elevators are devices used for vertical or inclined material transport. They are widely used in industries such as mining, metallurgy, construction, chemical, and power. Their main function is to transport materials from a lower position to a higher position or to move materials from one place to another. They are an indispensable part of automated and mechanized material handling systems and can greatly improve transportation efficiency.

[0003] Traditional hoists have shortcomings in stability. When working on uneven ground, it is not easy to adjust the support, which may cause the hoist to tilt. This not only affects normal operation but may also cause safety accidents. Moreover, due to the instability of the overall structure, the hoist's shaking during the lifting process will be transmitted to the lifted items. For some fragile or delicate items, such as glass products or precision instruments, this shaking may cause damage. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting device that can ensure stable support for the overall structure during the lifting process and prevent damage to the items caused by shaking of the lifting device.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A lifting device is provided, comprising: a base plate, a support leg, a lifting mechanism, a frame, and a support mechanism. The support leg is fixedly connected to the bottom of the base plate. The lifting mechanism includes a transmission component and a lifting plate. The transmission component is tractively connected to the lifting plate so that the lifting plate can be raised and lowered. The frame is fixedly connected to the base plate and is used to support the lifting mechanism. The support mechanism includes a first driving member, a sliding column, a support column, and an adjusting component. The sliding column is installed inside the support leg. The adjusting component is tractively connected between the sliding column and the support column. The first driving member can drive the adjusting component to move the support column away from or towards the sliding column.

[0007] Preferably, the support mechanism further includes a connecting plate, which is parallel and spaced apart from the base plate. The adjustment component includes a first connecting rod, a second connecting rod, a fixed sleeve, and a sliding sleeve. The first driving component is a hydraulic rod, one end of which is fixedly connected to the base plate, and the other end of which is fixedly connected to the connecting plate. The connecting plate is fixedly connected to the sliding sleeve, and the sliding sleeve is slidably connected to the sliding column. One end of the first connecting rod is rotatably connected to the sliding sleeve, and the other end of the first connecting rod is rotatably connected to the support column. The fixed sleeve is fixedly connected to the end of the sliding column away from the base plate. A sliding block is slidably connected to the support column along its own length direction. One end of the second connecting rod is rotatably connected to the fixed sleeve, and the other end of the second connecting rod is rotatably connected to the sliding block.

[0008] Preferably, the midpoints of the first link and the second link are hinged together to form a scissor structure.

[0009] Preferably, the support mechanism includes multiple adjustment components and multiple support columns, with the multiple support columns spaced apart circumferentially along the sliding column, and the multiple adjustment components being connected in a corresponding manner between the sliding column and the multiple support columns.

[0010] Preferably, multiple support legs are fixedly connected to the base plate, and the multiple support legs are symmetrically arranged relative to the center of the hydraulic rod.

[0011] Preferably, the frame mechanism includes two support frames and two support plates. The two support frames are arranged in parallel and spaced apart, and both support frames are perpendicular to the base plate. Both support frames are fixedly connected to the base plate, and the two support plates are fixedly connected to the top of the two support frames one-to-one.

[0012] Preferably, the transmission assembly includes two threaded rods spaced apart between two support frames, and a rotating column rotatably connected between two support plates. Two first bevel gears are fixedly connected to the rotating column. Both threaded rods are perpendicular to the base plate. One end of each threaded rod is rotatably connected to the base plate. Both threaded rods are screwed to the lifting plate. The other end of each threaded rod is fixedly connected to a second bevel gear. The two first bevel gears mesh with the two second bevel gears in a one-to-one correspondence.

[0013] Preferably, a protective shell is fixedly connected between the two support plates, a rotating column is disposed in the protective shell, and a clearance opening is provided at the bottom of the protective shell for the two threaded rods to pass through.

[0014] Preferably, the lifting device further includes a second driving member, which is fixedly connected to one of the two support plates. The output shaft of the second driving member is fixedly connected to the rotating column, and the second driving member can drive the rotating column to rotate.

[0015] Preferably, the second driving component is a servo motor.

[0016] The beneficial effects of this utility model are as follows:

[0017] A lifting device is provided, comprising a support mechanism including a first driving member, a sliding column, a support column, and an adjusting component. The sliding column is installed inside the support leg, and the adjusting component is tractively connected between the sliding column and the support column. The first driving member drives the adjusting component to move the support column away from or towards the sliding column. The support column expands outward as it moves away from the sliding column. The support mechanism quickly achieves stable support before the hoist begins operation. In complex working environments, such as on uneven ground, it ensures the stability of the hoist's overall structure according to the actual situation, avoiding the risk of items slipping due to hoist swaying. It also reduces unnecessary wear on internal mechanical parts caused by swaying, thus improving the hoist's stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the lifting device provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the support mechanism of the lifting device provided by this utility model;

[0020] Figure 3 This is a partial sectional view of the support mechanism of the lifting device provided by this utility model;

[0021] Figure 4 This is a cross-sectional view of the lifting device provided by this utility model;

[0022] Figure 5 This is a schematic diagram of the lifting mechanism of the lifting device provided by this utility model.

[0023] In the picture:

[0024] 1. Base plate; 11. Support legs; 12. Support frame; 13. Support plate; 14. Protective shell;

[0025] 2. Lifting mechanism; 201. Fixed housing; 202. Servo motor; 203. Rotating column; 204. First bevel gear; 205. Threaded rod; 206. Second bevel gear; 207. Lifting plate;

[0026] 3. Support mechanism; 301. Hydraulic rod; 302. Connecting plate; 303. Sliding column; 304. Sliding sleeve; 305. First connecting rod; 306. Support column; 307. Second connecting rod; 308. Fixed sleeve. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] 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.

[0030] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0031] Please refer to Figures 1 to 5This embodiment provides a lifting device, including: a base plate 1, a support leg 11, a lifting mechanism 2, a frame, and a support mechanism 3. The support leg 11 is fixedly connected to the bottom of the base plate 1. The lifting mechanism 2 includes a transmission assembly and a lifting plate 207. The transmission assembly is drivenly connected to the lifting plate 207 so that the lifting plate 207 can be raised and lowered. The frame is fixedly connected to the base plate 1 and is used to support the lifting mechanism 2. The support mechanism 3 includes a first driving member, a sliding column 303, a support column 306, and an adjusting assembly. The sliding column 303 is installed inside the support leg 11. The adjusting assembly is drivenly connected between the sliding column 303 and the support column 306. The first driving member can drive the adjusting assembly to move the support column 306 away from or towards the sliding column 303. Specifically, the lifting plate 207 is used to support the part to be lifted.

[0032] By setting up a support mechanism 3, which includes a first driving component, a sliding column 303, a support column 306, and an adjustment component, the sliding column 303 is installed inside the support leg 11. The adjustment component is connected between the sliding column 303 and the support column 306. The first driving component can drive the adjustment component to move the support column 306 away from or closer to the sliding column 303. The support column 306 expands outward by moving away from the sliding column 303. The support mechanism 3 can quickly achieve stable support before the hoist starts working. In complex working environments, such as when working on uneven ground, it can ensure the stability of the overall structure of the hoist according to the actual situation, avoid the risk of items slipping due to the hoist shaking, and also reduce unnecessary wear of the internal mechanical parts of the hoist caused by shaking, thereby improving the stability of the hoist.

[0033] Specifically, the frame mechanism includes two support frames 12 and two support plates 13. The two support frames 12 are arranged in parallel and spaced apart, and both support frames 12 are perpendicular to the base plate 1. Both support frames 12 are fixedly connected to the base plate 1, and the two support plates 13 are fixedly connected to the top of the two support frames 12 in a corresponding manner.

[0034] Alternatively, please refer to Figure 2 and Figure 3The support mechanism 3 also includes a connecting plate 302, which is parallel to and spaced apart from the base plate 1. The adjustment component includes a first connecting rod 305, a second connecting rod 307, a fixed sleeve, and a sliding sleeve 304. The first driving component is a hydraulic rod 301, one end of which is fixedly connected to the base plate 1, and the other end of which is fixedly connected to the connecting plate 302. The connecting plate 302 is fixedly connected to the sliding sleeve 304, and the sliding sleeve 304 is slidably connected to the sliding column 303. One end of the first connecting rod 305 is rotatably connected to the sliding sleeve 304, and the other end of the first connecting rod 305 is rotatably connected to the support column 306. The fixed sleeve is fixedly connected to the end of the sliding column 303 away from the base plate 1. A sliding block is slidably connected to the support column 306 along its own length direction. One end of the second connecting rod 307 is rotatably connected to the fixed sleeve, and the other end of the second connecting rod 307 is rotatably connected to the sliding block. With this configuration, the hydraulic rod 301 extends, causing the sliding sleeve 304 to move downwards along the sliding column 303. The downward movement of the sliding sleeve 304 causes the first connecting rod 305 to rotate. The rotation of the first connecting rod 305 causes the support column 306 to move, and the support column 306 causes the second connecting rod 307 to rotate, expanding the support column 306 outwards. The support mechanism 3 quickly achieves stable support before the hoist starts operating. In complex working environments, such as when operating on uneven ground, it can ensure the stability of the overall structure of the hoist according to the actual situation, avoiding the risk of items slipping due to hoist swaying. It also reduces unnecessary wear on the lifting parts carried by the lifting device due to swaying, improving the stability of the hoist. In other embodiments, the first driving component can also be an electric cylinder.

[0035] Specifically, the midpoints of the first link 305 and the second link 307 in the length direction are hinged to form a scissor structure. This scissor structure makes the support mechanism 3 more stable.

[0036] Optionally, the support mechanism 3 includes multiple adjusting components and multiple support columns 306. The multiple support columns 306 are spaced apart circumferentially along the sliding column 303, and the multiple adjusting components are connected to the sliding column 303 and the multiple support columns 306 in a corresponding transmission manner. Preferably, the support mechanism 3 includes four adjusting components and four support columns 306. The four support columns 306 are evenly distributed around the circumference of the sliding column 303, forming a symmetrical arrangement with a 90° interval. This allows the horizontal components of the force on each support column 306 to cancel each other out, and the central sliding column 303 is basically only subjected to axial load, resulting in a very small bending moment. This can significantly reduce the lateral wear of the sliding pair. When the four support columns 306 are driven synchronously, each support column 306 unfolds synchronously, and the load is naturally and evenly distributed, avoiding single-point overload and ensuring the stability of the support mechanism 3.

[0037] Alternatively, please refer to Figure 2Multiple support legs 11 are fixedly connected to the base plate 1, and the multiple support legs 11 are symmetrically arranged relative to the center of the hydraulic rod 301. Specifically, the lifting device is provided with four support legs 11, which are fixedly connected to the four corners of the base plate 1 respectively. This arrangement ensures that when the hydraulic rod 301 drives the connecting plate 302 to rise and fall, the sliding stroke of each sliding column 303 is the same, thereby ensuring that the outward expansion stroke of each support column 306 is the same, and ensuring the support stability of the multiple support legs 11.

[0038] Alternatively, please refer to Figure 4 and Figure 5 The transmission assembly includes two threaded rods 205 spaced apart between two support frames 12, and a rotating column 203 rotatably connected between two support plates 13. Two first bevel gears 204 are fixedly connected to the rotating column 203. The two threaded rods 205 are both perpendicular to the base plate 1. One end of each threaded rod 205 is rotatably connected to the base plate 1. Both threaded rods 205 are screwed to the lifting plate 207. The other end of each threaded rod 205 is fixedly connected to a second bevel gear 206. The two first bevel gears 204 mesh with the two second bevel gears 206 in a one-to-one correspondence.

[0039] Specifically, the lifting device further includes a second driving member, which is fixedly connected to one of the two support plates 13. The output shaft of the second driving member is fixedly connected to the rotating column 203, and the second driving member can drive the rotating column 203 to rotate. Exemplarily, the second driving member is a servo motor 202. In other embodiments, the second driving member can also be a handwheel.

[0040] With this configuration, the first bevel gear 204 on the rotating column 203 meshes with the second bevel gear 206 on the threaded rod 205. This structure can effectively convert the rotation of the servo motor 202 into the rotation of the threaded rod 205, achieving efficient power transmission, ensuring the stable operation of the lifting mechanism 2, and helping to accurately control the lifting height.

[0041] Alternatively, please refer to Figure 1 A protective shell 14 is fixedly connected between the two support plates 13. The rotating column 203 is disposed in the protective shell 14, and the bottom of the protective shell 14 is provided with a clearance opening for the two threaded rods 205 to pass through. In this configuration, the protective shell 14 provides a closed space for the rotating column 203 to be protected from dust, foreign objects, and collisions. At the same time, the clearance opening ensures the transmission between the threaded rods 205 and the rotating column 203, thus guaranteeing the lifting function of the lifting device.

[0042] The working principle of the lifting device provided in this embodiment is as follows:

[0043] Before the lifting operation, the support mechanism 3 is in its initial state. At this time, the support column 306 is in a relatively retracted position, and the hydraulic rod 301 is in an unextended state. When the hydraulic rod 301 extends, since the bottom end of the hydraulic rod 301 is fixedly connected to the connecting plate 302, and the connecting plate 302 is fixedly connected to the sliding sleeve 304, the extension of the hydraulic rod 301 will cause the sliding sleeve 304 to slide downward along the sliding column 303, thereby causing the first connecting rod 305 to rotate relative to the sliding sleeve 304. The first connecting rod 305 drives the support column 306 to move away from the sliding column 303. The first link 305 and the second link 307 are rotatably connected in a scissor-like structure, and a sliding block is slidably connected to the support column 306 along its own length. One end of the second link 307 is rotatably connected to the fixed sleeve, and the other end of the second link 307 is rotatably connected to the sliding block. During the rotation of the first link 305, the support column 306 will drive the second link 307 to rotate around the hinge point of the first link 305 and the second link 307, thereby causing the support column 306 to expand outward parallel to the sliding column 303, so as to achieve stable support for the lifting device.

[0044] After the support column 306 expands outward to provide support, the part to be lifted is placed on the lifting plate 207. The servo motor 202 is started to rotate counterclockwise. The servo motor 202 drives the rotating column 203 to rotate counterclockwise. Through the meshing of the first bevel gear 204 and the second bevel gear 206, the threaded rod 205 is driven to rotate clockwise. The threaded rod 205 is screwed to the lifting plate 207, thereby driving the lifting plate 207 to rise, thus driving the part to be lifted to rise, and realizing the lifting function.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A lifting device, comprising: A base plate (1) and a support leg (11), wherein the support leg (11) is fixedly connected to the bottom of the base plate (1); The lifting mechanism (2) includes a transmission assembly and a lifting plate (207). The transmission assembly is tractively connected to the lifting plate (207) so that the lifting plate (207) can be raised and lowered. A frame, which is fixedly connected to the base plate (1), is used to support the lifting mechanism (2); The lifting device is characterized in that it further includes: The support mechanism (3) includes a first driving member, a sliding column (303), a support column (306), and an adjustment component. The sliding column (303) is installed inside the support leg (11). The adjustment component is tractively connected between the sliding column (303) and the support column (306). The first driving member can drive the adjustment component to move the support column (306) away from or closer to the sliding column (303).

2. The lifting device according to claim 1, characterized in that, The support mechanism (3) further includes a connecting plate (302), which is parallel to and spaced apart from the base plate (1). The adjustment assembly includes a first connecting rod (305), a second connecting rod (307), a fixed sleeve, and a sliding sleeve (304). The first driving component is a hydraulic rod (301), one end of which is fixedly connected to the base plate (1), and the other end of which is fixedly connected to the connecting plate (302). The connecting plate (302) is fixedly connected to the sliding sleeve (304). (304) is slidably connected to the sliding column (303), one end of the first connecting rod (305) is rotatably connected to the sliding sleeve (304), the other end of the first connecting rod (305) is rotatably connected to the support column (306), the fixed sleeve is fixedly connected to the end of the sliding column (303) away from the base plate (1), a sliding block is slidably connected to the support column (306) along its own length direction, one end of the second connecting rod (307) is rotatably connected to the fixed sleeve, and the other end of the second connecting rod (307) is rotatably connected to the sliding block.

3. The lifting device according to claim 2, characterized in that, The midpoint of the first link (305) in the length direction and the midpoint of the second link (307) in the length direction are hinged to form a scissor structure.

4. The lifting device according to claim 3, characterized in that, The support mechanism (3) includes multiple adjustment components and multiple support columns (306). The multiple support columns (306) are arranged at intervals along the circumference of the sliding column (303). The multiple adjustment components are connected to the sliding column (303) and the multiple support columns (306) in a corresponding manner.

5. The lifting device according to claim 4, characterized in that, A plurality of support legs (11) are fixedly connected to the base plate (1), and the plurality of support legs (11) are arranged symmetrically with respect to the hydraulic rod (301).

6. The lifting device according to claim 1, characterized in that, The frame includes two support frames (12) and two support plates (13). The two support frames (12) are arranged in parallel and spaced apart, and both support frames (12) are perpendicular to the base plate (1). Both support frames (12) are fixedly connected to the base plate (1), and the two support plates (13) are fixedly connected to the top of the two support frames (12) one by one.

7. The lifting device according to claim 6, characterized in that, The transmission assembly includes two threaded rods (205) spaced apart between the two support frames (12), and a rotating column (203) rotatably connected between the two support plates (13). Two first bevel gears (204) are fixedly connected to the rotating column (203). The two threaded rods (205) are both perpendicular to the base plate (1). One end of each threaded rod (205) is rotatably connected to the base plate (1). The two threaded rods (205) are both screwed to the lifting plate (207). The other end of each threaded rod (205) is fixedly connected to a second bevel gear (206). The two first bevel gears (204) mesh with the two second bevel gears (206) in a one-to-one correspondence.

8. The lifting device according to claim 7, characterized in that, A protective shell (14) is fixedly connected between the two support plates (13), and the rotating column (203) is disposed in the protective shell (14). The bottom of the protective shell (14) is provided with a clearance opening for the two threaded rods (205) to pass through.

9. The lifting device according to claim 7, characterized in that, The lifting device further includes a second driving member, which is fixedly connected to one of the two support plates (13). The output shaft of the second driving member is fixedly connected to the rotating column (203), and the second driving member can drive the rotating column (203) to rotate.

10. The lifting device according to claim 9, characterized in that, The second driving component is a servo motor (202).

Images