Crane trolley maintenance platform
By designing a maintenance platform fixed to the end of the main beam on the crane, and combining the platform components with adjustable guardrails, the safety and cost issues of crane trolley maintenance are solved, providing a stable maintenance space and a flexible operating environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ORITCRANES BEIJING CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-05
AI Technical Summary
The existing crane trolley requires the use of a ladder for maintenance, which poses safety hazards and has high rental costs. In addition, the railings of the existing maintenance rack are in fixed positions, which affects maintenance operations.
Design a crane trolley maintenance platform, including a platform component, a platform support component, and a protective component. The platform component is fixed to the end of the main beam and connected to the walkway through a fixed guardrail. The adjustable guardrail on the inner side can adjust the spacing between the guardrails to provide a stable maintenance space.
It eliminates the need for ladders, reduces rental costs, improves safety, provides flexible maintenance space, and facilitates maintenance operations.
Smart Images

Figure CN224199098U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane technology, and in particular to a crane trolley maintenance platform. Background Technology
[0002] A crane is a machine that uses a hook or other lifting device to suspend heavy objects and perform cyclical operations such as lifting and moving in space. A crane includes a main beam, a traveling trolley and a walkway. Two sets of main beams are arranged in parallel. The traveling trolley is installed between the two sets of main beams and can move along the length of the main beams to carry out lifting work. The walkway is installed on the outer side of one of the main beams along the length of the main beams.
[0003] The crane is quite tall, and maintenance personnel need to use lifting equipment such as ladders to reach the corresponding height when repairing the traveling trolley. When using a ladder, it must be kept tilted at all times, otherwise it is easy to overturn and other safety accidents, resulting in low safety performance. Moreover, the rental price of ladder length is expensive. Currently, a maintenance frame can also be used to repair the traveling trolley, but the existing crane trolley maintenance frames are too simple. The guardrails on them are fixed in position, and the spacing between two adjacent sets of guardrails cannot be adjusted, which can easily affect maintenance personnel's operation of the traveling trolley. Utility Model Content
[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a crane trolley maintenance platform that is fixed to the end of the main beam and connected to the walkway, eliminating the need for ladder equipment, thereby improving equipment safety and saving the rental cost of ladder equipment.
[0005] This utility model provides a crane trolley maintenance platform, wherein the crane includes a main beam, a traveling trolley, and a walkway, comprising:
[0006] The platform component includes a first base plate, a second base plate, and a third base plate located in a horizontal plane and connected in sequence. The first base plate and the third base plate are symmetrically arranged about the second base plate, and a gap is left between the end of the first base plate away from the second base plate and the end of the third base plate away from the second base plate.
[0007] The platform support component has its lower end fixedly connected to the first base plate and the third base plate, and its upper end is used to be fixedly connected to one end of the main beam.
[0008] The protective components include a fixed guardrail fixedly installed on the outside of the platform component and an adjustable guardrail slidably installed on the inside of the platform component, wherein the fixed guardrail has a notch for docking with the walkway.
[0009] Furthermore, the platform support assembly includes multiple sets of first support frames and multiple sets of second support frames. The first support frames are fixedly connected to the outer edges of the first base plate and the third base plate, and the second support frames are fixedly connected to the inner edges of the first base plate and the third base plate. The first support frames and the corresponding second support frames are fixedly connected by connectors, and the connectors are welded and fixed to the main beam.
[0010] Furthermore, a third support frame is provided on the outer edge of the second base plate in the vertical direction, and a fourth support frame is provided on the inner side of the second base plate in the vertical direction. The fixed guardrail is fixedly installed on the first support frame and the third support frame, and the adjustable guardrail is connected to the second support frame and the fourth support frame.
[0011] Furthermore, the adjustable guardrail includes multiple railings arranged horizontally, and both the second support frame and the fourth support frame are equipped with adjustment components. Multiple railings are arranged vertically between two adjacent sets of adjustment components, and the railings can be raised and lowered vertically to adjust the spacing between two adjacent sets of railings.
[0012] Furthermore, the adjustment assembly includes an adjustment box arranged vertically, with symmetrically arranged grooves in the adjustment box along the vertical direction. A slider is slidably connected in the groove, and the slider is fixedly connected to one end of the railing. The slider is also connected to a fastener, which is used to fix the slider to the adjustment box.
[0013] Furthermore, one side of the adjustment box has a waist-shaped hole that communicates with the slide groove in the vertical direction. The adjustment box has a plurality of threaded holes that are equally spaced in the vertical direction on one side of the waist-shaped hole. The fastener includes a connecting plate, which is fixedly connected to the slider and slidably connected to the waist-shaped hole. The connecting plate has a fastening hole, and a fastening bolt passes through the fastening hole. The fastening bolt is threadedly connected to the threaded hole.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] (1) The maintenance platform of this utility model includes a platform component, a platform support component, and a protective component. The maintenance platform is fixed to the end of the main beam by the platform support component. The fixed guardrail installed on the outside of the platform component has a notch, which connects with the crane's walkway. Maintenance personnel can directly enter the platform component through the walkway. The platform component provides support for maintenance personnel, making it convenient for them to carry out maintenance work on the crane's traveling trolley. This application eliminates the need for a ladder to reach the height, saving the rental cost of a ladder. Moreover, the maintenance platform of this application is directly fixed to the end of the main beam, which is more stable and safer than a ladder.
[0016] (2) The platform component of this utility model is provided with an adjustable guardrail on the inner side. The distance between two adjacent sets of guardrails can be adjusted by the adjustment component, so as to leave enough maintenance space for maintenance personnel, and facilitate the use of maintenance tools and replacement of parts.
[0017] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description
[0018] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0019] Figure 1 This is a side view of the present invention assembled on the main beam;
[0020] Figure 2 This is a top view of the structure of this utility model assembled on the main beam;
[0021] Figure 3 This is a schematic diagram of the structure of this utility model;
[0022] Figure 4 This is a structural diagram of the second support frame, the fourth support frame, the adjustment components, and the adjustable guardrail.
[0023] Figure 5 This is a structural diagram of the second support frame, adjustment components, and adjustable guardrail.
[0024] Figure 6 A schematic diagram of the front structure of the adjustment component;
[0025] Figure 7 A top view of the structure of the adjustment component;
[0026] The diagram is labeled as follows: 1. Platform component; 2. Platform support component; 3. Protection component; 4. Adjustment component.
[0027] 11. First base plate; 12. Second base plate; 13. Third base plate;
[0028] 21. First support frame; 22. Second support frame; 23. Connector; 24. Third support frame; 25. Fourth support frame;
[0029] 31. Fixed guardrail; 32. Adjustable guardrail;
[0030] 41. Adjustment box; 42. Slider; 43. Fastener; 44. Oblong hole; 45. Threaded hole; 46. Fastening bolt;
[0031] 321. Railing;
[0032] 100, main beam; 200, walkway. Detailed Implementation
[0033] 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 relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0034] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0035] Please refer to Figures 1 to 7 This utility model provides a crane trolley maintenance platform for maintaining the traveling trolley on a crane. The crane includes two sets of main beams 100 arranged parallel to each other, with a traveling trolley installed between the two sets of main beams 100. A slide rail is provided along the length of each main beam 100, allowing the traveling trolley to move along the slide rail for lifting operations. A walkway 200 is provided along the length of one set of main beams away from the traveling trolley, and the walkway 200 has a built-in ladder, allowing maintenance personnel to access the walkway 200 via the ladder. The crane trolley maintenance platform of this application is installed below the end of the main beams to avoid affecting the movement of the crane's traveling trolley.
[0036] The crane trolley maintenance platform of this application includes a platform component 1, a platform support component 2, and a protective component 3;
[0037] Platform component 1 includes a first base plate 11, a second base plate 12, and a third base plate 13 located in a horizontal plane and connected in sequence. The first base plate 11 and the third base plate 13 are symmetrically arranged about the second base plate 12, and a gap is left between the end of the first base plate 11 away from the second base plate 12 and the end of the third base plate 13 away from the second base plate 12. Specifically, the first base plate 11, the second base plate 12, and the third base plate 13 are all rectangular plate structures. The second base plate 12 is connected to the first base plate 11 and the third base plate 13 by bolts, and the first base plate 11 and the third base plate 13 are arranged in parallel, so that a gap is left between the first base plate 11 and the third base plate 13, which facilitates the movement of the crane's traveling trolley between the first base plate 11 and the third base plate 13, thereby facilitating maintenance personnel to carry out maintenance work around the traveling trolley.
[0038] The platform support component 2 has its lower end fixedly connected to the first base plate 11 and the third base plate 13, and its upper end is used to be fixedly connected to one end of the main beam 100.
[0039] The protective component 3 includes a fixed guardrail 31 fixedly installed on the outside of the platform component 1 and an adjustable guardrail 32 slidably installed on the inside of the platform component 1. The fixed guardrail 31 has a notch for docking with the walkway 200.
[0040] In this embodiment, the maintenance platform of this application is fixedly installed at the end of the main beam 100 by the platform support component 2, so that the second base plate 12 of this application is horizontally arranged between the two sets of main beams 100, the first base plate 11 and the third base plate 13 are fixedly installed below the main beam 100, and the fixed guardrail 31 is provided with a notch, which connects with the walkway 200. During maintenance, the crane's traveling trolley is moved between the first base plate 11 and the third base plate 13, and the maintenance personnel can directly enter the first base plate 11 through the walkway 200. The first base plate 11, the second base plate 12 and the third base plate 13 are connected in sequence, thereby supporting the maintenance personnel to move on the platform component 1 and complete the maintenance work of the crane's traveling trolley.
[0041] This application eliminates the need for ladders for access, saving on the cost of leasing ladders; moreover, the maintenance platform of this application is directly fixed to the end of the main beam 100, which is more stable and safer than ladder equipment; and this application can be protected by fixed guardrails 31 and adjustable guardrails 32, thereby improving the safety of the maintenance platform.
[0042] In a preferred embodiment, such as Figure 1 , Figure 2 and Figure 3As shown, the platform support assembly 2 includes multiple sets of first support frames 21 and multiple sets of second support frames 22. The first support frames 21 are fixedly connected to the outer edges of the first base plate 11 and the third base plate 13, and the second support frames 22 are fixedly connected to the inner edges of the first base plate 11 and the third base plate 13. The first support frames 21 and the corresponding second support frames 22 are fixedly connected by connectors 23, and the connectors 23 are welded and fixed to the main beam 100.
[0043] In this embodiment, a connector 23 is connected between the first support frame 21 and the second support frame 22 symmetrically arranged with respect to the first base plate 11, and a connector 23 is also connected between the first support frame 21 and the second support frame 22 symmetrically arranged with respect to the third base plate 13. The connector 23 fixes the first support frame 21 and the second support frame 22 together, and the connector 23 is fixedly connected to the main beam 100 by welding, thus fixing the maintenance platform of this application below the ends of the two sets of main beams 100 to ensure the stability of the connection.
[0044] In a preferred embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, a third support frame 24 is provided vertically along the outer edge of the second base plate 12, and a fourth support frame 25 is provided vertically along the inner edge of the second base plate 12. The fixed guardrail 31 is fixedly installed on the first support frame 21 and the third support frame 24, and the adjustable guardrail 32 is connected to the second support frame 22 and the fourth support frame 25.
[0045] In this embodiment, the third support frame 24 facilitates the installation of a fixed guardrail 31 on the outer side of the second base plate 12, and the fourth support frame 25 facilitates the installation of an adjustable guardrail 32 on the inner side of the second base plate 12, thereby improving the comprehensiveness of protection.
[0046] Furthermore, four sets of first support frames 21 are fixed on the outer edge of the first base plate 11. No fixed guardrail 31 is set between the two sets of first support frames 21 in the middle to form a gap. This gap connects with the walkway 200, and maintenance personnel can enter the first base plate 11 through the gap.
[0047] In a preferred embodiment, such as Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the adjustable guardrail 32 includes multiple railings 321 arranged in the horizontal direction. Adjustment components 4 are provided on the second support frame 22 and the fourth support frame 25. Multiple railings 321 are arranged vertically between two adjacent sets of adjustment components 4, and the railings 321 can be raised and lowered in the vertical direction to adjust the distance between two adjacent sets of railings 321.
[0048] In this embodiment, during maintenance, the height of the railings 321 between two adjacent sets of adjustment components 4 can be adjusted by adjusting component 4, thereby changing the height difference between two adjacent sets of railings 321. This allows for a larger gap, making it easier for maintenance personnel to extend their arms to perform maintenance work, operate larger maintenance tools, and replace parts. It also prevents the gap between adjacent railings 321 from being too small, which could hinder maintenance work and improve the flexibility of the device. Furthermore, in this application, the height of the railings 321 between any two adjacent sets of adjustment components 4 can be adjusted independently. The height of the railings 321 at the corresponding position can be adjusted according to actual maintenance needs, further improving the flexibility of railing height adjustment.
[0049] In a preferred embodiment, such as Figure 6 and Figure 7 As shown, the adjustment assembly 4 includes an adjustment box 41 arranged in a vertical direction. The adjustment box 41 has symmetrically opened grooves in a vertical direction. A slider 42 is slidably connected in the groove. The slider 42 is fixedly connected to one end of the railing 321. The slider 42 is also connected to a fastener 43, which is used to fix the slider 42 to the adjustment box 41.
[0050] Preferably, one side of the adjusting box 41 has a waist-shaped hole 44 communicating with the slide groove in the vertical direction. The adjusting box 41 has a plurality of threaded holes 45 at equal intervals in the vertical direction on one side of the waist-shaped hole 44. The fastener 43 includes a connecting plate, which is fixedly connected to the slider 42 and slidably connected to the waist-shaped hole 45. The connecting plate has a fastening hole, and a fastening bolt 46 passes through the fastening hole. The fastening bolt 46 is threadedly connected to the threaded hole.
[0051] In this embodiment, the connecting plate is set in an "L" shape, with one end fixedly connected to the slider 42, and the other end extending through the oblong hole 45 to the outside of the slide groove. When it is necessary to adjust the height of the railing 321, first release the fixing of both ends of the railing 321 to the adjustment box 41, and then manually adjust the height of the railing 321 so that the sliders 42 at both ends of the railing 321 move up and down along the slide groove. After moving to the appropriate position, use the fastening bolts 46 to fix the connecting plate to the adjustment box 41, thereby fixing the railing 321. This facilitates maintenance operations while providing safety protection for maintenance personnel. The structure is simple, easy to adjust, and convenient to operate.
[0052] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0053] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer 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.
[0054] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A crane trolley maintenance platform, the crane comprising a main beam, a traveling trolley, and a walkway, characterized in that, include: The platform component includes a first base plate, a second base plate, and a third base plate located in a horizontal plane and connected in sequence. The first base plate and the third base plate are symmetrically arranged about the second base plate, and a gap is left between the end of the first base plate away from the second base plate and the end of the third base plate away from the second base plate. The platform support component has its lower end fixedly connected to the first base plate and the third base plate, and its upper end is used to be fixedly connected to one end of the main beam. The protective components include a fixed guardrail fixedly installed on the outside of the platform component and an adjustable guardrail slidably installed on the inside of the platform component, wherein the fixed guardrail has a notch for docking with the walkway.
2. The crane trolley maintenance platform according to claim 1, characterized in that, The platform support assembly includes multiple sets of first support frames and multiple sets of second support frames. The first support frames are fixedly connected to the outer edges of the first base plate and the third base plate, and the second support frames are fixedly connected to the inner edges of the first base plate and the third base plate. The first support frames and the corresponding second support frames are fixedly connected by connectors, and the connectors are welded to the main beam.
3. A crane trolley maintenance platform according to claim 2, characterized in that, A third support frame is provided vertically along the outer edge of the second base plate, and a fourth support frame is provided vertically along the inner edge of the second base plate. The fixed guardrail is fixedly installed on the first support frame and the third support frame, and the adjustable guardrail is connected to the second support frame and the fourth support frame.
4. A crane trolley maintenance platform according to claim 3, characterized in that, The adjustable guardrail includes multiple horizontally arranged railings. Adjustment components are provided on both the second support frame and the fourth support frame. Multiple railings are arranged vertically between adjacent sets of adjustment components, and the railings can be raised and lowered vertically to adjust the spacing between adjacent sets of railings.
5. A crane trolley maintenance platform according to claim 4, characterized in that, The adjustment assembly includes an adjustment box arranged vertically, with symmetrical grooves formed inside the adjustment box along the vertical direction. A slider is slidably connected inside the groove, and the slider is fixedly connected to one end of the railing. The slider is also connected to a fastener, which is used to fix the slider to the adjustment box.
6. A crane trolley maintenance platform according to claim 5, characterized in that, One side of the adjustment box has a waist-shaped hole that communicates with the slide groove in the vertical direction. The adjustment box has a plurality of threaded holes that are equally spaced in the vertical direction on one side of the waist-shaped hole. The fastener includes a connecting plate, which is fixedly connected to the slider and slidably connected to the waist-shaped hole. The connecting plate has a fastening hole, and a fastening bolt passes through the fastening hole. The fastening bolt is threadedly connected to the threaded hole.