Fabricated trolley serving for maintenance above existing line of station building
By designing a modular prefabricated trolley, the problems of long construction cycle, high cost and safety hazards during maintenance above the rail transit station line are solved, and the construction is convenient, safe and reliable.
Patent Information
- Application Number
- CN202421829752.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-31
AI Technical Summary
During the construction and maintenance of rail transit station buildings, the decorative structure above the line needs to be inspected and repaired regularly, but traditional maintenance methods have problems such as long construction cycle, high cost and safety hazards.
Design a prefabricated trolley serving the existing line of the station building, adopting a modular design, including a walking module, a support module and a working platform module, and achieves rapid assembly and disassembly through standardized interfaces and anti-loosening bolt components.
It achieves convenient construction, safe and reliable, can quickly adapt to the needs of different construction environments, reduces construction cycles and costs, and improves safety.
Smart Images

Figure CN222822795U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rail transit station building construction and maintenance, and in particular to an assembled trolley serving for maintenance above an existing line of a station building. Background Art
[0002] During the construction and maintenance of rail transit stations, decorative structures above the lines, such as ceilings, lamps, ventilation ducts, and protection measures for existing contact lines, often require regular inspection and maintenance. Traditional maintenance methods usually require the construction of temporary scaffolding or the use of aerial work vehicles, which not only has a long construction period and high costs, but also poses a major safety hazard. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide an assembled trolley for maintenance above the existing line in the station building. The construction is convenient, safe and reliable. The trolley body and key components adopt a modular design, which is convenient for rapid assembly and disassembly, and is easy to adapt to the needs of different construction environments.
[0004] In order to solve the above problems, an assembled trolley is used for maintenance above the existing line of the station building, which includes:
[0005] A walking module, comprising a nylon track wheel and a first frame, wherein the nylon track wheel is mounted on the bottom surface of the first frame;
[0006] a support module comprising a second frame disposed on the first frame;
[0007] A working platform module, comprising a working platform and a protective mesh installed around the working platform, wherein the working platform is installed on the top surface of the second frame;
[0008] A standardized interface is installed at the docking position between the first frame and the second frame, and at the docking position between the second frame and the working platform, and includes an anti-loosening bolt assembly, which includes a bolt, a gasket and a nut. The gasket includes a first body and a second body, which are stacked up and down in a serrated meshing state and then tightened by the head of a nut or a bolt. Anti-slip grooves are provided on the first body and the second body on a side opposite to the serrated surface. When the second body is pressed against the first frame, the second frame or the working platform, the second body at least partially extends beyond the edge of the first frame, the second frame or the working platform.
[0009] With such a structure, the first frame and the second frame are more stable after being spliced, and the bolts are not easy to loosen. When the second body is pressed, the second body is pressed against the edge of the first frame or the second frame or the working platform, and some protrusions in the anti-slip pattern can form a concave-convex combination with the tip of the edge, thereby preventing the second body from rotating. The rotation of the second body can also prevent the first body from rotating, thereby achieving the effect of anti-slip and anti-loosening.
[0010] As a further improvement of the utility model, the nylon track wheel is equipped with brakes.
[0011] As a further improvement of the utility model, the nylon track wheel is a light train nylon track wheel.
[0012] As a further improvement of the utility model, the nylon track wheel adopts a stepped wheel, the wheel body with a larger diameter of the stepped wheel is close to the inner side of the track, and the wheel body with a smaller diameter is placed on the upper side of the track.
[0013] With such a structure, when stepped wheels are placed on both tracks, the stepped wheel on the left prevents leftward movement, and the stepped wheel on the right prevents rightward movement, thereby preventing the trolley from shifting horizontally.
[0014] As a further improvement of the present invention, anti-skid patterns are arranged on the first body and the second body on a surface opposite to the serrated surface, and the anti-skid patterns are serrated strips distributed along the circumferential direction.
[0015] With such a structure, the raised portion of the sawtooth strip is long enough to be clamped tightly with the tip of the corner of the edge of the galvanized square tube.
[0016] As a further improvement of the present invention, the overlapping surface of the first body and the second body is formed by the surface of the sawtooth blocks distributed along the circumferential direction.
[0017] With such a structure, the first body and the second body can be better prevented from slipping.
[0018] As a further improvement of the utility model, a steel ladder is arranged on the first frame, and the steel ladder extends to the working platform.
[0019] As a further improvement of the present invention, a space is reserved in the hollow portion of the second frame for the load-bearing cables and the contact network to pass through.
[0020] With this structure, there is ample space when the trolley is traveling without affecting the load-bearing cables and contact network on site.
[0021] As a further improvement of the present invention, the first frame and the second frame are installed by using galvanized square tubes.
[0022] With such a structure, the galvanized square tube is easy to assemble.
[0023] As a further improvement of the utility model, the second body is pressed on the anti-slip pattern of the galvanized square tube, and the anti-slip pattern of the galvanized square tube matches the anti-slip pattern of the second body.
[0024] Adopting such a structure can further enhance the anti-slip effect.
[0025] The utility model is convenient to construct, safe and reliable, and the trolley body and key components adopt modular design, which is convenient for rapid assembly and disassembly and easy to adapt to the needs of different construction environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is the front elevation view of the trolley.
[0027] Figure 2 This is a side elevation view of the trolley.
[0028] Figure 3 This is the front elevation view of the walking module.
[0029] Figure 4 This is the side elevation view of the walking module.
[0030] Figure 5 This is the front elevation view of the supporting module.
[0031] Figure 6 This is the side elevation view of the support module.
[0032] Figure 7 This is a side elevation view of the working platform module.
[0033] Figure 8 This is the front elevation view of the working platform module.
[0034] Fig. 9 This is a schematic diagram of the structure for installing an anti-loosening bolt assembly on a galvanized square tube.
[0035] Figure numerals: 1, nylon track wheel; 101, step wheel; 2, first frame; 4, second frame; 5, working platform; 6, protective mesh; 7, anti-loosening bolt assembly; 701, bolt; 702, gasket; 703, nut; 704, first body; 705, second body; 8, steel ladder; 9, load-bearing cable; 10, contact network. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0037] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0038] Example 1
[0039] like Figure 1 As shown, an assembled trolley for maintenance above the existing line of a station building comprises:
[0040] A walking module, comprising a nylon track wheel 1 and a first frame 2, wherein the nylon track wheel 1 is mounted on the bottom surface of the first frame 2;
[0041] A support module comprising a second frame 4 arranged on the first frame 2;
[0042] A working platform module, comprising a working platform 5 and a protective mesh 6 installed around the working platform 5, wherein the working platform 5 is installed on the top surface of the second frame 4;
[0043] A standardized interface is installed at the docking position between the first frame 2 and the second frame 4, and at the docking position between the second frame 4 and the working platform 5, and includes an anti-loosening bolt assembly 7, and the anti-loosening bolt assembly 7 includes a bolt 701, a gasket 702 and a nut 703, and the gasket 702 includes a first body 704 and a second body 705, and the first body 704 and the second body 705 are stacked up and down in a serrated meshing state, and then pressed by the nut 703 or the head of the bolt 701, and anti-slip grooves 706 are provided on the first body 704 and the second body 705 on the side opposite to the serrated surface, and when the second body 705 is pressed against the first frame 2 or the second frame 4 or the working platform 5, the second body 705 at least partially extends beyond the edge of the first frame 2 or the second frame 4 or the working platform 5.
[0044] With such a structure, the first frame 2 and the second frame 4 are more stable after being spliced, and the bolt 701 is not easy to loosen. When the second body 705 is pressed, the second body 705 is pressed against the edge of the first frame 2 or the second frame 4 or the working platform 5, and the anti-slip pattern has some protrusions that can form a concave-convex combination with the tip of the edge, thereby preventing the second body 705 from rotating. The rotation of the second body 705 can also prevent the first body 704 from rotating. The anti-slip pattern of the first body 704 prevents the nut 703 and the head of the bolt 701 from rotating, thereby achieving the effect of anti-slip and anti-loosening.
[0045] In this embodiment, the nylon track wheel 1 is provided with brakes.
[0046] In this embodiment, the nylon track wheel 1 is a light train nylon track wheel.
[0047] In this embodiment, the nylon track wheel 1 adopts a stepped wheel 101 , wherein the wheel body of the stepped wheel 101 with a larger diameter is closely attached to the inner side of the track 3 , and the wheel body with a smaller diameter is placed on the upper side of the track 3 .
[0048] With such a structure, when stepped wheels 101 are placed on both tracks, the stepped wheel 101 on the left is prevented from moving leftward, and the stepped wheel on the right is prevented from moving rightward, thereby preventing the trolley from shifting horizontally.
[0049] In this embodiment, the first body 704 and the second body 705 are provided with anti-slip grooves 706 on the side opposite to the serrated surface, and the anti-slip grooves are serrated strips distributed along the circumferential direction.
[0050] With such a structure, the raised portion of the sawtooth strip is long enough to be clamped tightly with the tip of the corner of the edge of the galvanized square tube.
[0051] In this embodiment, the overlapping surface of the first body 704 and the second body 705 is formed by the surface of sawtooth blocks distributed along the circumferential direction.
[0052] With such a structure, the first body 704 and the second body 705 can be better prevented from slipping.
[0053] In this embodiment, a steel ladder 8 is provided on the first frame 2 , and the steel ladder 8 extends to the working platform 5 .
[0054] In this embodiment, a space is reserved in the hollow portion of the second frame 4 for the load-bearing cables 9 and the contact network 10 to pass through.
[0055] With such a structure, there is sufficient space when the trolley is traveling, and the load-bearing cables 9 and the contact network 10 on site are not affected.
[0056] In this embodiment, the first frame 2 and the first frame 2 are installed using galvanized square tubes.
[0057] With such a structure, the galvanized square tube is easy to assemble.
[0058] In this embodiment, the second body 705 is pressed on the anti-slip groove of the galvanized square tube, and the anti-slip groove of the galvanized square tube matches the anti-slip groove of the second body 705 .
[0059] Adopting such a structure can further enhance the anti-slip effect.
[0060] Example 2
[0061] Assembly process:
[0062] ①According to the actual measurement of the on-site construction height, the modules are produced and pre-assembled in the processing plant according to the measured dimensions. The module keel adopts 60X40X2.5mm galvanized square tube. Figure 1 Figure 2
[0063] ② The walking module, support module and working platform module are connected into a whole through standardized interfaces (Φ10 anti-loosening bolts) @250 to complete the assembly of the trolley. Figure 3 Figure 4 Figure 5
[0064] ③ The bottom of the walking module uses light train nylon track wheels (with brakes) and is welded to the main keel 60X40X2.5mm galvanized square tube, with a total of 6 brake wheels. Figure 1 Figure 2
[0065] ④ The ladder material specification is 40X40X2.5mm square tube, which is installed at the front and rear ends of the trolley. The ladder is connected to the main keel 60X40X2.5mm galvanized square tube through a standardized interface (Φ10 anti-loosening bolt) @250.
[0066] ⑤ The finished guardrail of the working platform is connected by bolts through the ear plate. Figure 5
[0067] Construction operation:
[0068] Move the trolley to the designated location and ensure the stability and safety of the trolley by adjusting the legs.
[0069] Maintenance personnel inspect, repair and replace decorative structures on the working platform.
[0070] Manual control adjusts the trolley position and work platform height to meet different maintenance needs.
[0071] Maintenance and care:
[0072] Regularly inspect and maintain each module of the trolley to ensure that the equipment is in good condition.
[0073] Replace worn or damaged parts to maintain the stability and reliability of the trolley.
[0074] This embodiment has the following advantages:
[0075] Modular design: The trolley body and key components adopt modular design, which is convenient for quick assembly and disassembly to meet the needs of different construction environments.
[0076] Stable and reliable: The use of high-strength materials and advanced structural design ensures the stability and safety of the trolley during high-altitude operations.
[0077] Flexible movement: Equipped with light train nylon track wheels (with brakes), it can be flexibly moved along the track or the ground to the designated location to improve construction efficiency.
[0078] Multifunctional work platform: The work platform can be adjusted and expanded according to maintenance needs, supporting the placement and use of a variety of maintenance tools and equipment.
[0079] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For technicians in the technical field to which the present invention belongs, several equivalent substitutions or obvious variations can be made without departing from the concept of the present invention, and the performance or use is the same, which should be regarded as belonging to the protection scope of the present invention.
Claims
1. An assembled trolley for maintenance above the existing line of a station building, characterized in that include: A walking module, comprising a nylon track wheel (1) and a first frame (2), wherein the nylon track wheel (1) is mounted on the bottom surface of the first frame (2); A support module comprising a second frame (4) arranged on the first frame (2); A working platform module, comprising a working platform (5) and a protective mesh (6) installed around the working platform (5), wherein the working platform (5) is installed on the top surface of the second frame (4); A standardized interface is installed at the docking position between a first frame (2) and a second frame (4), and at the docking position between the second frame (4) and a working platform (5). The standardized interface comprises an anti-loosening bolt assembly (7). The anti-loosening bolt assembly (7) comprises a bolt (701), a gasket (702) and a nut (703). The gasket (702) comprises a first body (704) and a second body (705). The first body (704) and the second body (705) are stacked up and down in a sawtooth meshing state and then pressed by the head of the nut (703) or the bolt (701). The first body (704) and the second body (705) are provided with anti-slip grooves (706) on the side opposite to the sawtooth surface. When the second body (705) is pressed against the first frame (2) or the second frame (4) or the working platform (5), the second body (705) at least partially exceeds the edge of the first frame (2) or the second frame (4) or the working platform (5).
2. The assembled trolley for maintenance above the existing line of the station building according to claim 1 is characterized in that The nylon track wheel (1) is provided with a brake.
3. The assembled trolley for maintenance above the existing line of the station building according to claim 1 is characterized in that The nylon track wheel (1) is a nylon track wheel for light trains.
4. The assembled trolley for maintenance above the existing line of the station building according to claim 1 is characterized in that The nylon track wheel (1) adopts a stepped wheel (101), wherein the wheel body with a larger diameter of the stepped wheel (101) is closely attached to the inner side of the track (3), and the wheel body with a smaller diameter is placed on the upper side of the track (3).
5. The assembled trolley for maintenance above the existing line of the station building according to claim 1 is characterized in that The anti-slip pattern is a sawtooth strip distributed along the circumferential direction.
6. The assembled trolley for maintenance above the existing line of the station building according to claim 1 is characterized in that The overlapping surfaces of the first body (704) and the second body (705) are formed by sawtooth block surfaces distributed along the circumferential direction.
7. The assembled trolley for maintenance above the existing line of the station building according to claim 1 is characterized in that A steel ladder (8) is arranged on the first frame (2), and the steel ladder (8) extends to the working platform (5).
8. The assembled trolley for maintenance above the existing line of the station building according to claim 1 is characterized in that The hollow portion of the second frame (4) reserves space for the load-bearing cables (9) and the contact network (10) to pass through.
9. The assembled trolley for maintenance above the existing line of the station building according to claim 5 is characterized in that The first frame (2) and the first frame (2) are installed using galvanized square tubes.
10. The assembled trolley for maintenance above the existing line of the station building according to claim 9 is characterized in that The second body (705) is pressed on the anti-skid pattern of the galvanized square tube, and the anti-skid pattern of the galvanized square tube and the anti-skid pattern of the second body (705) are matched.