Inspection pit drainage combination structure of double-layer vehicle base TOD
By using a separation structure and drainage pipe to connect the floor drain and drainage ditches in the inspection pit of the double-layer vehicle base, the problem of water leakage damage to the contact network is solved, reducing the project cost and improving drainage safety.
Patent Information
- Application Number
- CN202421036411.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The inspection pit design of the existing double-decker vehicle base has the problem of water leakage easily damaging the contact network, resulting in unsafe drainage, and an invalid cavity and high engineering cost.
The inspection pit structure separated by a second-layer board is adopted, and the floor drain and drainage ditches are connected through drainage pipes to change the drainage path, ensure drainage safety, and reduce invalid space.
It reduces the risk of damage to the contact network, reduces the project cost, achieves stable drainage effect, and is suitable for the transformation of existing vehicle bases.
Smart Images
Figure CN222350363U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of urban rail transit vehicle base engineering design, in particular to an inspection pit drainage combination structure of a double-deck vehicle base TOD. Background Art
[0002] Subway vehicles on rail transit lines need to undergo routine maintenance inspections in double-decker depots or repair depots, during which oil leaks, flushing and discharge of fire water are inevitable.
[0003] Currently, if Figure 1 As shown, the subway train 2 is parked or inspected in a 2.45m high inspection pit 4, with a track 3 arranged above the inspection pit 4 for the subway train 2 to run, and an overhead contact network 1 for supplying power to the subway train 2 arranged in the storage space above the subway train 2. A 300mm drainage ditch 5 is arranged in the inspection pit 4 for draining oil leakage, flushing and firefighting water in normal times. This inspection pit structure is usually used in the ground layer, with the lower part 1.6m below the ground 6.
[0004] For the second-floor inspection pit of the double-layer storage Figure 1 Design, such as Figure 2 As shown, the inspection pit 4 is arranged above the second floor plate 8 of the structural beam 11, and has a sandwich plate 7, forming a 1m invalid cavity. The floor drain 9 and the drainage pipe 10 collect the drainage of the drainage ditch 5 and are located above the contact network 1 of the lower layer. Therefore, once there is a leak or maintenance, the contact network 1 is easily damaged and the subway train below cannot run. Summary of the invention
[0005] The purpose of the utility model is to provide a combined inspection pit drainage structure for a double-decker vehicle base TOD based on the above-mentioned deficiencies of the prior art, which collects drainage from the second-layer floor drains through pipes and discharges it to the first-layer inspection pit drainage ditch, thereby changing the drainage path and optimizing the structure to ensure drainage safety during inspection.
[0006] The purpose of this utility model is achieved by the following technical solutions:
[0007] A combined inspection pit drainage structure for a double-deck vehicle base TOD comprises an inspection pit located on an upper layer and a lower layer, wherein the two inspection pits are separated by a second layer of plates, and the second layer of plates is supported by a structural beam, and is characterized in that: a surface layer is arranged above the second layer of plates, floor drains are arranged on both sides of the surface layer, the floor drains are located on the outside of the inspection pit, and the surface layer has a certain slope from the inspection pit located on the upper layer to the floor drain; a drainage ditch is arranged in the inspection pit located on the lower layer, and the floor drain is connected to the drainage ditch through a drainage pipe.
[0008] The floor drain and the drainage pipe are arranged outside the inspection pit of the lower layer.
[0009] The ground of the inspection pit located at the lower level has a certain slope from both sides toward the drainage ditch.
[0010] The slope is a 1% slope.
[0011] The utility model has the advantages of reducing the ineffective space sandwich plate, greatly reducing the project cost, and reducing the damage factor to the contact network; the structure is simple and reasonable, can realize the transformation of the existing double-layer vehicle base, the drainage effect is stable, and it is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a drainage structure layout diagram of the ground inspection pit in the prior art;
[0013] Figure 2 It is a drainage structure layout diagram of the second-floor inspection pit in the prior art;
[0014] Figure 3 This is the layout diagram of the drainage structure of the second-floor inspection pit of the utility model;
[0015] Figure 4 It is a schematic diagram of the double-layer drainage combination structure in the utility model. DETAILED DESCRIPTION
[0016] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by technicians in the same industry:
[0017] like Figure 1-4 As shown, the marks 1-12 in the figure respectively represent: contact network 1, subway train 2, track 3, inspection pit 4, drainage ditch 5, ground 6, sandwich panel 7, second layer panel 8, floor drain 9, drainage pipe 10, structural beam 11, surface layer 12.
[0018] Example: Figure 3 and Figure 4 As shown, the inspection pit drainage combination structure of the double-deck vehicle base TOD in this embodiment is used in the double-deck vehicle base TOD, which includes an upper layer and a lower layer. In the figure, each layer includes two inspection pits 4, and a track 3 is arranged on the inspection pit 4. The subway train 2 can run on the track 3, and the subway train 2 is connected to the overhead line 1. The upper and lower spaces are separated by a second layer plate 8, and the second layer plate 8 is supported by a structural beam 11.
[0019] Specifically, if Figure 3 As shown, the combined structure in this embodiment includes a surface layer 12 located on the second layer board 8, the surface layer 12 is centered as the watershed, and the surface layer 12 is sloped on both sides (such as Figure 3As shown in the direction of the arrow in the figure), drainage during production or firefighting in the inspection pit 4 is discharged into the floor drain 9 on the sides of the structural beams 11 on both sides, and the floor drain 9 is connected to one end of the drainage pipe 10.
[0020] like Figure 4 As described above, a drainage ditch 5 is provided in the inspection pit 4 of the lower layer, and the drainage ditch 5 is connected to the other end of the drainage pipe 10. At this time, the drainage of the upper layer is collected through the drainage pipe 10 and discharged into the drainage ditch 5 for discharge.
[0021] In this process, if Figure 4 As shown, the entire drainage path is located outside the inspection pit 4 , and even if water leakage or maintenance occurs, it will not have an adverse effect on the contact network 1 located above the subway train 2 , thereby ensuring the safety of the contact network 1 .
[0022] In the specific implementation of this embodiment, in order to improve the drainage effect of the lower layer, the ground of the inspection pit 4 located in the lower layer is sloped 1% from both sides toward the drainage ditch 5 (such as Figure 4 As shown by the arrow direction in FIG. 1 ), water can be easily gathered into the drainage ditch 5.
[0023] Although the above embodiments have described the concepts and embodiments of the purpose of the utility model in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the utility model without departing from the scope of the claims, so they are not described one by one here.
Claims
1. A combined inspection pit drainage structure for a double-layer vehicle base TOD, comprising an inspection pit located at an upper layer and a lower layer, wherein the two inspection pits are separated by a second layer of plates, and the second layer of plates are supported by structural beams, and characterized in that: A surface layer is arranged above the second layer board, and floor drains are arranged on both sides of the surface layer respectively. The floor drains are located outside the inspection pit, and the surface layer has a certain slope from the inspection pit located on the upper layer to the floor drain direction; a drainage ditch is arranged in the inspection pit located on the lower layer, and the floor drain is connected to the drainage ditch through a drainage pipe.
2. The combined structure of drainage for the inspection pit of a double-deck vehicle base TOD according to claim 1 is characterized by: The floor drain and the drainage pipe are arranged outside the inspection pit of the lower layer.
3. The combined drainage structure for the inspection pit of a double-deck vehicle base TOD according to claim 1 is characterized by: The ground of the inspection pit located at the lower level has a certain slope from both sides toward the drainage ditch.
4. The combined inspection pit drainage structure of a double-deck vehicle base TOD according to claim 1 or 3, characterized in that: The slope is a 1% slope.