Lifting platform device

Abstract

The utility model discloses a lifting platform device, which belongs to the technical field of bullet train maintenance equipment and comprises a passing platform, a lifting component and a connecting platform. Wherein the lifting assembly is connected with the passing platform, and the lifting assembly can drive the passing platform to ascend and descend in the vertical direction; when the lifting assembly drives the passing platform to ascend and descend to the first position, the passing platform communicates with the first area. The connecting platform communicates with the second area, and when the lifting assembly drives the passing platform to ascend and descend to the second position, the passing platform communicates with the connecting platform. Through cooperation of the passing platform, the lifting assembly and the connecting platform, stable transition of the moving tool equipment among different areas is achieved, a traditional crown block hoisting mode does not need to be adopted any more, the labor burden is relieved, and the efficiency that the moving tool equipment enters and exits from the trench is improved.

Description

Technical Field

[0001] This utility model relates to the field of high-speed train maintenance equipment technology, and in particular to a lifting platform device. Background Technology

[0002] In railway transportation systems, regular maintenance of high-speed trains is necessary to ensure they remain in good operating condition. To facilitate maintenance of the underside of the trains, a trench-like channel, called a pit, is often dug in the ground. The trains can be parked above the pit, allowing maintenance personnel to enter and inspect, maintain, and repair the equipment and components on the train's underside.

[0003] Currently, when EMU (Electric Multiple Unit) maintenance workshops conduct inspections, they commonly use mobile tools and equipment such as tool carts and inspection robot carts for auxiliary maintenance. However, the issue of moving these mobile tools and equipment into and out of the inspection trench has always been a thorny problem. Currently, the trench only has stairs for manual access and does not have a dedicated passageway for mobile tools and equipment. Under existing technology, overhead cranes are typically used to hoist these tools and equipment into and out of the inspection trench.

[0004] Traditional overhead crane hoisting operations not only require a significant amount of time to complete the hoisting operation, but also necessitate a substantial workforce for collaborative work. This results in low maintenance efficiency and a high risk of damaging mobile equipment during maintenance, increasing maintenance costs and repair risks. Utility Model Content

[0005] The purpose of this utility model is to provide a lifting platform device to solve the technical problem of difficulty in moving mobile tools and equipment into and out of trenches in the prior art.

[0006] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0007] A lifting platform device, comprising:

[0008] Access platform;

[0009] A lifting assembly is connected to the passage platform, and the lifting assembly can drive the passage platform to rise and fall vertically; when the lifting assembly drives the passage platform to rise and fall to the first position, the passage platform is connected to the first area;

[0010] The connecting platform is connected to the second area. When the lifting component drives the passage platform to rise and fall to the second position, the passage platform is connected to the connecting platform.

[0011] Preferably, the lifting assembly comprises a support base, a driving part and a plurality of scissor units connected in a top-down manner, the scissor unit at the lowermost layer is connected with the support base, and the driving part can drive the scissor units to stretch upwards or contract downwards on the support base.

[0012] Preferably, the scissor unit comprises two scissor arms, the two scissor arms are arranged in a cross manner and are rotationally connected, the scissor arms of two adjacent scissor units are rotationally connected, and one of the scissor arms in the scissor unit at the lowermost layer is fixedly connected with the support base, and the other scissor arm is slidably connected with the support base, and the driving part can drive the other scissor arm to slide on the support base along a first linear direction.

[0013] Preferably, the driving part is a hydraulic cylinder, and the extension end of the hydraulic cylinder is connected with any one of the scissor arms.

[0014] Preferably, the scissor arm comprises two scissor rods, the two scissor rods are arranged in a spaced manner along a second linear direction, and the two ends of the two scissor rods are connected through a connecting shaft.

[0015] Preferably, the support base is formed with oppositely arranged guide grooves, and the two ends of the connecting shaft on the other scissor arm at the lowermost layer protrude from the scissor rods and are slidably connected with the guide grooves.

[0016] Preferably, the passing platform comprises a bearing segment and a connecting segment, the bearing segment and the connecting segment are rotationally connected, the bearing segment is used for connecting the connecting platform, and the connecting segment is used for connecting the first area, and a plurality of hollow holes are formed on the connecting segment along the thickness direction of the connecting segment.

[0017] Preferably, a pulley is arranged on one end of the connecting segment close to the first area.

[0018] Preferably, the connecting platform comprises a horizontal segment and an inclined segment, the inclined segment is used for connecting the passing platform, the horizontal segment is used for connecting the second area, the inclined segment is inclined downward to form a slope surface in a direction away from the passing platform, and the slope surface is connected with the horizontal segment.

[0019] Preferably, the lifting platform device further comprises a guide rail, and the guide rail is connected with one end of the horizontal segment away from the inclined segment.

[0020] The utility model discloses the beneficial effects of:

[0021] The lifting platform device provided by the utility model, when the mobile tool device wants to move from the first area to the second area, first control the lifting assembly to drive the passing platform to lift to the first position, so that the passing platform is communicated with the first area, then drive the mobile tool device to move to the passing platform and stop stably.

[0022] The lifting platform device provided by the utility model, the lifting assembly can accurately and stably drive the passing platform to lift along the vertical direction, so as to adjust the position of the passing platform. The passing platform is communicated with the first area, which provides a channel for the mobile tool device to enter the passing platform from the first area, avoiding the difficulty of entering or collision damage caused by position deviation. Moreover, the passing platform and the connecting platform can be communicated, so that the mobile tool device can smoothly transition from the passing platform to the connecting platform. Through the cooperation between the passing platform, the lifting assembly and the connecting platform, the smooth transition of the mobile tool device between different areas is realized, without the need of using the traditional overhead crane lifting mode, thereby reducing the labor burden and improving the efficiency of the mobile tool device entering and exiting the trench. Meanwhile, the lifting design avoids damaging the mobile tool device during maintenance, thereby reducing the maintenance cost and repair risk of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structure schematic view of the lifting platform device applied to the trench provided by the utility model embodiment;

[0024] Figure 2 is a structure schematic view of the lifting platform device provided by the utility model embodiment;

[0025] Figure 3 is a structure schematic view of the passing platform provided by the utility model embodiment;

[0026] Figure 4 is a structure schematic view of the lifting assembly provided by the utility model embodiment;

[0027] Figure 5 is a structure schematic view of the connecting platform provided by the utility model embodiment.

[0028] In the drawings:

[0029] 100, the first area; 200, the second area;

[0030] 1, access platform; 11, bearing section; 12, connecting section; 120, hollow hole; 121, support frame; 122, support rod; 123, pulley;

[0031] 2, lifting assembly; 21, support base; 211, guide groove; 22, driving part; 23, scissor arm; 231, scissor rod; 232, connecting shaft;

[0032] 3, connecting platform; 31, horizontal section; 32, inclined section;

[0033] 4, guide rail. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0035] In the description of the present application, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the present application, unless explicitly defined and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] The technical scheme of the present application is further illustrated by the specific embodiments below in combination with the drawings.

[0038] Reference is made to Figure 1 and Figure 2The utility model embodiment provides the lifting platform device including pass platform 1, lifting assembly 2 and link platform 3. Among them, lifting assembly 2 is connected with pass platform 1, and lifting assembly 2 can drive pass platform 1 to lift along the vertical direction, when lifting assembly 2 drives pass platform 1 to lift to first position, pass platform 1 is communicated with first area 100, link platform 3 is communicated with second area 200, when lifting assembly 2 drives pass platform 1 to lift to second position, pass platform 1 is communicated with link platform 3.

[0039] When using, when mobile tool equipment wants to move from first area 100 to second area 200, first control lifting assembly 2 drives pass platform 1 to lift to first position, so that pass platform 1 is communicated with first area 100, then, drive mobile tool equipment to move to pass platform 1 and stop steady. Then, control lifting assembly 2 drives pass platform 1 to lift to second position, so that pass platform 1 is communicated with link platform 3, drive mobile tool equipment to move to second area 200 finally from pass platform 1 through link platform 3. When mobile tool equipment wants to move from second area 200 to first area 100, the steps are same with the above steps, and will not be repeated here.

[0040] The lifting platform device provided by the utility model, lifting assembly 2 can accurately and stably drive pass platform 1 to lift along the vertical direction, so as to adjust the position of pass platform 1. Pass platform 1 is communicated with first area 100, which provides a passageway for mobile tool equipment to enter pass platform 1 from first area 100, avoiding entering difficulty or collision damage caused by position deviation. Moreover, pass platform 1 and link platform 3 can be communicated, so that mobile tool equipment can smoothly transition from pass platform 1 to link platform 3. Through the cooperation between pass platform 1, lifting assembly 2 and link platform 3, the smooth transition of mobile tool equipment between different areas is realized, without using the traditional overhead crane lifting mode, reducing the labor burden and improving the efficiency of mobile tool equipment entering and exiting the trench. Meanwhile, the lifting design avoids damaging mobile tool equipment during maintenance, reducing the maintenance cost and repair risk of the equipment.

[0041] It can be understood that, in the embodiment, first area 100 is an aboveground area, and second area 200 is inside a trench, the height of first area 100 is greater than the height of second area 200, for the convenience of description combined with the drawings, the direction in the following description is the direction shown in the drawings, but is not limited thereto, in other embodiments, the height of second area 200 can be greater than the height of first area 100, which will not be repeated here.

[0042] The specific structure of the lifting platform device will be described below.

[0043] Referring toFigure 3 The passing platform 1 serves as a main placement position for carrying mobile tool equipment. Specifically, the passing platform 1 comprises a carrying segment 11 and a connecting segment 12, the carrying segment 11 and the connecting segment 12 are rotationally connected, the carrying segment 11 is used to communicate with the connecting platform 3, and the connecting segment 12 is used to communicate with the first area 100. A plurality of hollow holes 120 are provided on the connecting segment 12 along the thickness direction of the connecting segment 12. The design of the rotationally connected carrying segment 11 and connecting segment 12 enables the passing platform 1 to better adapt to the connection requirements of different heights and angles. When the lifting assembly 2 drives the passing platform 1 to ascend and descend, the rotationally connected mode can enable the carrying segment 11 and the connecting segment 12 to flexibly adjust the angle according to the actual situation, thereby ensuring the precise and stable communication of the passing platform 1 with the connecting platform 3 and the first area 100, and improving the adaptability and universality of the equipment. The plurality of hollow holes 120 provided on the connecting segment 12 can effectively reduce the overall weight of the passing platform 1, thereby reducing the load of the lifting assembly 2, reducing energy consumption, and improving the efficiency and stability of the lifting operation. In addition, the design of the hollow holes 120 also helps to ventilate and dissipate heat, thereby avoiding the malfunction of the mobile tool equipment due to overheating when the mobile tool equipment runs on the passing platform 1, and prolonging the service life of the equipment.

[0044] Specifically, the connecting segment 12 comprises a support frame 121 and a support rod 122, the support frame 121 is connected with the carrying segment 11, the middle part of the support frame 121 is hollow, and a plurality of support rods 122 are arranged at the middle part of the support frame 121 in a spaced manner, thereby forming the hollow hole 120. In other embodiments, the connecting segment 12 can also be an integral plate-shaped member, and the hollow hole 120 is formed by through-holes provided along the thickness direction of the connecting segment 12, which is not limited herein.

[0045] Specifically, the connecting segment 12 is provided with a pulley 123 at one end close to the first area 100. The pulley 123 can reduce the wear of the contact part between the connecting segment 12 and the first area 100, prolong the service life of the connecting segment 12, and reduce the maintenance and replacement cost.

[0046] Referring to Figure 4The lifting assembly 2 is used to drive the passing platform 1 to lift to adjust its position. Specifically, the lifting assembly 2 comprises a support base 21, a driving part 22 and a plurality of scissor units connected in series from top to bottom, the scissor unit at the lowermost layer is connected with the support base 21, and the driving part 22 can drive the scissor units to stretch upward or contract downward on the support base 21. The structure of the plurality of scissor units connected in series makes the lifting process more stable and reliable. The coordinated movement of the scissor units can evenly share the load to ensure that the passing platform 1 remains horizontal during the lifting process, avoiding safety hazards and equipment damage caused by tilting. The driving part 22 drives the scissor units to stretch upward or contract downward, which can realize precise lifting control and meet the needs of different heights, adapting to various complex working scenarios. The scissor unit at the lowermost layer is connected with the support base 21, which enhances the stability of the structure and can withstand greater weight and pressure.

[0047] In other embodiments, the lifting assembly 2 can also drive the passing platform 1 to lift through a hydraulic lifting system, a screw-nut pair or an electric push rod, and the like, which will not be described here in detail, as long as the lifting assembly 2 can realize the lifting effect of the passing platform 1.

[0048] Specifically, the scissor unit comprises two scissor arms 23, which are cross arranged and rotationally connected. The scissor arms 23 of adjacent two scissor units are rotationally connected. In the scissor unit at the lowermost layer, one of the scissor arms 23 is fixedly connected with the support base 21, and the other scissor arm 23 is slidably connected with the support base 21. The driving part 22 can drive the other scissor arm 23 to slide on the support base 21 along a first linear direction. The two scissor arms 23 of adjacent two scissor units are rotationally connected, thereby forming a linkage mechanism. When the driving part 22 drives the scissor arm 23 at the lowermost layer to move, the linkage mechanism formed by the rotational connection drives the connected scissor arms 23 to stretch or contract in sequence, enhancing the integrity and coordination of the entire lifting assembly 2 and making the lifting action smooth. The driving part 22 can drive the other scissor arm 23 to slide on the support base 21 along the first linear direction, thereby accurately controlling the stretching and contraction of the scissor unit and realizing precise adjustment of the height of the passing platform 1.

[0049] It can be understood that the specific number of scissor units is not limited here and can be adaptively selected according to the actual distance between the first area 100 and the second area 200.

[0050] More specifically, the scissor arm 23 comprises two scissor rods 231, which are arranged in a spaced manner along the second straight direction, and the two ends of the two scissor rods 231 are connected through the connecting shaft 232, thereby enhancing the overall strength and rigidity of the scissor arm 23. During the lifting process, the scissor arm 23 can better withstand the pressure and tension, thereby reducing the risk of deformation and damage and improving the stability and reliability of the lifting assembly 2. The spaced arrangement of the two scissor rods 231 increases the bending and torsion resistance of the structure without increasing the weight, so that the scissor arm 23 can still maintain a good working state under complex stress conditions.

[0051] More specifically, the support base 21 is formed with oppositely arranged guide grooves 211, and the two ends of the connecting shaft 232 on the other scissor arm 23 located at the lowermost layer protrude from the scissor rods 231 and are slidably connected with the guide grooves 211, thereby ensuring the directionality and stability of the connecting shaft 232 during sliding and making the movement of the scissor arm 23 more stable and controllable, so as to ensure the stability and accuracy of the entire lifting platform device during the lifting process. At the same time, the cooperation of the guide grooves 211 and the connecting shaft 232 effectively limits the degree of freedom of the connecting shaft 232 in other directions, thereby avoiding the problems of structural instability and uneven lifting that may be caused by the deviation or shaking of the connecting shaft 232.

[0052] In the present embodiment, the driving part 22 is selected to be a hydraulic cylinder, and the extension end of the hydraulic cylinder is connected with any one of the scissor arms 23. Specifically, the extension end of the hydraulic cylinder is connected with the connecting shaft 232 between the two scissor rods 231. The hydraulic cylinder has strong driving force and can provide sufficient and stable power for the extension and contraction of the scissor unit, thereby ensuring that the lifting platform device can carry a larger weight and meet the heavy load requirements that may be encountered in actual work. Moreover, the extension and contraction of the hydraulic cylinder are accurate and controllable, which can realize accurate adjustment of the lifting height of the passing platform 1 and improve the operation precision and adaptability of the lifting platform device.

[0053] In other embodiments, the driving part 22 can also be selected to be an electric push rod, a telescopic motor or the like, which is not limited herein.

[0054] After the lifting assembly 2 moves the passing platform 1 to the second position, the moving tool equipment can pass through the transition platform 3 and finally move to the second area 200 from the passing platform 1, and the transition platform 3 plays a transition role between the passing platform 1 and the second area 200.

[0055] Referring to Figure 5, the connecting platform 3 comprises a horizontal section 31 and an inclined section 32, the inclined section 32 is used for connecting the passing platform 1, the horizontal section 31 is used for connecting the second area 200, the inclined section 32 is inclined downward along the direction away from the passing platform 1 to form a slope surface, and the slope surface is connected with the horizontal section 31. The inclined section 32 is used for connecting the passing platform 1, the inclined section 32 is inclined downward along the direction away from the passing platform 1 to form a slope surface, and the slope surface can effectively reduce the impact force when the passing platform 1 is docked with the connecting platform 3. The horizontal section 31 is used for connecting the second area 200, and the horizontal section 31 provides a stable plane for the movement of the mobile tool equipment on the connecting platform 3, so that the equipment can smoothly enter the second area 200 from the connecting platform 3, and the bumping and instability caused by the uneven platform are avoided. The design that the slope surface is connected with the horizontal section 31 makes the whole connecting process smooth and natural, and there is no obvious height difference mutation, so that the vibration and wear of the mobile tool equipment are reduced.

[0056] Specifically, the lifting platform device further comprises a guide rail 4, and the guide rail 4 is connected with one end of the horizontal section 31 away from the inclined section 32. The guide rail 4 provides a clear path guide for the mobile tool equipment to continue to travel from the connecting platform 3. The mobile tool equipment can accurately and stably move along the predetermined direction, and the equipment deviating from the route or the chaotic travel direction is avoided.

[0057] The above embodiments only illustrate the basic principles and characteristics of the present application, and the present application is not limited by the above embodiments. Without departing from the spirit and scope of the present application, various changes and modifications can be made to the present application, and these changes and modifications all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A lifting platform device, characterized in that, The utility model relates to a kind of passage platform and its connection structure, including: Passage platform (1); Lifting assembly (2) is connected with the passage platform (1), the lifting assembly (2) can drive the passage platform (1) to lift along vertical direction;When the lifting assembly (2) drives the passage platform (1) to lift to first position, the passage platform (1) is communicated with first area (100); Linking platform (3) is communicated with second area (200), when the lifting assembly (2) drives the passage platform (1) to lift to second position, the passage platform (1) is communicated with the linking platform (3).

2. The overhead platform apparatus according to claim 1, wherein, Lifting assembly (2) includes support base (21), drive part (22) and multiple scissor units connected from top to bottom, the scissor unit located in the lowermost layer is connected with the support base (21), and the drive part (22) can drive the scissor unit to stretch upwards or contract downwards on the support base (21).

3. The overhead platform apparatus according to claim 2, wherein, The scissor unit includes two scissor arms (23), the two scissor arms (23) are cross arranged and rotationally connected, the scissor arms (23) of adjacent two scissor units are rotationally connected, in the scissor unit located in the lowermost layer, one of the scissor arms (23) is fixedly connected with the support base (21), and the other scissor arm (23) is slidably connected with the support base (21), and the drive part (22) can drive the other scissor arm (23) to slide on the support base (21) along first linear direction.

4. The overhead platform apparatus according to claim 3, wherein, The drive part (22) selects hydraulic cylinder, and the telescopic end of the hydraulic cylinder is connected with any scissor arm (23).

5. The overhead platform apparatus according to claim 3, wherein, The scissor arm (23) includes two scissor rods (231), the two scissor rods (231) are spaced apart along second linear direction, and the two ends of the two scissor rods (231) are connected by connecting shaft (232).

6. The overhead platform apparatus according to claim 5, wherein, The support base (21) is formed with oppositely arranged guide grooves (211), and the two ends of the connecting shaft (232) on the other scissor arm (23) located in the lowermost layer are protruded from the scissor rods (231) and slidably connected with the guide grooves (211).

7. The elevating platform assembly of claim 1, wherein, The passage platform (1) includes bearing segment (11) and connecting segment (12), the bearing segment (11) and the connecting segment (12) are rotationally connected, the bearing segment (11) is used to communicate the linking platform (3), the connecting segment (12) is used to communicate the first area (100), and a plurality of hollow holes (120) are formed on the connecting segment (12) along the thickness direction of the connecting segment (12).

8. The elevating platform assembly of claim 7, wherein, The connecting segment (12) is provided with pulley (123) on one end close to the first area (100).

9. The elevating platform assembly of claim 1, wherein, The linking platform (3) includes horizontal segment (31) and inclined segment (32), the inclined segment (32) is used to communicate the passage platform (1), the horizontal segment (31) is used to communicate the second area (200), the inclined segment (32) is inclined downward to form slope surface along the direction away from the passage platform (1), and the slope surface is communicated with the horizontal segment (31).

10. The elevating platform assembly of claim 9, wherein, The lifting platform device further comprises a guide rail (4) connected to one end of the horizontal section (31) away from the inclined section (32).

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