A maintenance tool for air conditioning in passenger compartments of high-speed trains

By designing maintenance fixtures for the air conditioning in the passenger compartments of high-speed trains, the applicability issues of various needs in the air conditioning maintenance process were solved, achieving efficient air conditioning maintenance. The fixtures are compact and easy to use.

CN224448630UActive Publication Date: 2026-07-03BOMBARDIER SIFANG QINGDAO TRANSPORTATION

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BOMBARDIER SIFANG QINGDAO TRANSPORTATION
Filing Date
2025-07-09
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing technology lacks maintenance tools suitable for the air conditioning in the passenger compartment of the CRH380D EMU, which cannot meet the various needs of maintenance, transfer and transportation of the air conditioning process.

Method used

A maintenance fixture comprising a movable bottom frame, rotatable ends, and intermediate supports has been designed. The support surface is adjustable and equipped with casters and columns to support the fixing and transportation of air conditioning units. The fixture has a compact structure and is easy to use.

Benefits of technology

This maintenance tool meets the requirements of each process in air conditioner maintenance, including disassembly, adhesive application, and painting. It is compact in structure, easy to use, and ensures the smooth progress of air conditioner maintenance.

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Abstract

This application provides a maintenance fixture for the air conditioning system in the passenger compartment of a high-speed train, which meets various needs such as maintenance, transfer, and transportation of the air conditioning system. The maintenance fixture for the air conditioning system in the passenger compartment of a high-speed train includes: a movable bottom frame; end supports rotatably arranged on the bottom frame; and an intermediate support rotatably arranged on the bottom frame, positioned between the two end supports; the upper surfaces of the end supports and the intermediate support together form a support surface for placing the air conditioning unit in the passenger compartment of the high-speed train.
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Description

Technical Field

[0001] This application relates to the field of tooling, specifically a maintenance tooling for the air conditioning in the passenger compartment of a high-speed train. Background Technology

[0002] When the CRH380D EMU undergoes A4 or A5 maintenance, the passenger compartment air conditioning unit needs to be inspected off the train. Therefore, it is necessary to design a tooling that meets the various needs of air conditioning maintenance, transfer, and transportation. Utility Model Content

[0003] This application provides a maintenance fixture for the air conditioning system in the passenger compartment of a high-speed train, which can meet various needs such as maintenance, transfer, and transportation of the air conditioning system.

[0004] The technical solution of this utility model is as follows:

[0005] A maintenance fixture for the air conditioning system in the passenger compartment of a high-speed train includes:

[0006] Movable bottom frame;

[0007] End supports, which are rotatably arranged on the bottom frame;

[0008] An intermediate support is rotatably arranged on the bottom frame and is positioned between the two end supports.

[0009] The upper surfaces of the end supports and the intermediate supports together form a support surface for placing the air conditioning unit in the passenger compartment of the EMU.

[0010] Preferably, the end support includes:

[0011] The first slider is slidably mounted on the bottom frame;

[0012] A first mounting base fixedly connected to the first slider;

[0013] A first support column that is detachably connected to the first mounting base;

[0014] A first nylon block is detachably connected to the first support column. The first nylon block has a round hole for inserting a pin to fix the passenger compartment air conditioning unit.

[0015] Preferably, the bottom frame is provided with a first sliding groove, and the first slider and the first sliding groove form a sliding fit.

[0016] Preferably, the first mounting base is provided with a first opening;

[0017] After the detachable connection between the first mounting base and the first support column is released, the first support column is moved from a vertical state to a horizontal state by relying on the first opening.

[0018] Preferably, the intermediate support includes:

[0019] A second slider is slidably mounted on the bottom frame;

[0020] The second mounting base is fixedly connected to the second slider;

[0021] The second support column is detachably connected to the second mounting base;

[0022] A second nylon block that is detachably connected to the second support column.

[0023] Preferably, the bottom frame is provided with a second sliding groove, and the second slider and the second sliding groove form a sliding fit.

[0024] Preferably, the second mounting base is provided with a second opening;

[0025] After the detachable connection between the second mounting base and the second support column is released, the second support column is moved from a vertical state to a horizontal state by relying on the second opening.

[0026] Preferably, the movable bottom frame comprises:

[0027] Framework body;

[0028] The frame body is equipped with movable wheels.

[0029] Preferably, the maintenance fixture for the air conditioning in the passenger compartment of the high-speed train further includes:

[0030] A column passes through and is fixed to the frame body in a vertical direction, and the lower end of the column is set higher than the moving wheel.

[0031] Preferably, the frame body is formed by welding steel plates and square tubes.

[0032] The beneficial effects of this utility model are as follows:

[0033] This maintenance fixture meets the needs of air conditioning maintenance, disassembly, glue application, painting, component assembly, and other processes, as well as the needs of maintenance, transfer, and transportation. The spacing between the two end supports and the two intermediate supports on the fixture can be adjusted to meet the needs of air conditioning maintenance for multiple projects. The fixture has a compact structure, is easy to use, meets the requirements of air conditioning maintenance, and ensures the smooth progress of air conditioning maintenance. Attached Figure Description

[0034] Figure 1This is a schematic diagram of the maintenance fixture for the air conditioning in the passenger compartment of a high-speed train, as described in an embodiment of this application.

[0035] Figure 2 This is a schematic diagram of the end support being mounted on the bottom frame in an embodiment of this application;

[0036] Figure 3 This is a schematic diagram of the installation of the intermediate support on the bottom frame in an embodiment of this application. Detailed Implementation

[0037] To facilitate understanding by those skilled in the art, the present utility model patent is further described below with reference to the accompanying drawings. While the description is quite detailed, it should not be construed as limiting the scope of the present utility model patent. Obvious variations and substitutions of the following examples are all within the protection scope of this patent.

[0038] Reference Figures 1-3 This application provides a maintenance fixture for the air conditioning system in the passenger compartment of a high-speed train, comprising:

[0039] Movable bottom frame;

[0040] End supports, which are rotatably arranged on the bottom frame;

[0041] An intermediate support is rotatably arranged on the bottom frame and is positioned between the two end supports.

[0042] The upper surfaces of the end supports and the intermediate supports together form a support surface for placing the air conditioning unit in the passenger compartment of the EMU.

[0043] This maintenance fixture meets the needs of air conditioning maintenance, disassembly, glue application, painting, component assembly, and other processes, as well as the needs of maintenance, transfer, and transportation. The spacing between the two end supports and the two intermediate supports on the fixture can be adjusted to meet the needs of air conditioning maintenance for multiple projects. The fixture has a compact structure, is easy to use, meets the requirements of air conditioning maintenance, and ensures the smooth progress of air conditioning maintenance.

[0044] Reference Figure 1 The end support includes:

[0045] The first slider 21 is slidably mounted on the bottom frame;

[0046] The first mounting base 22 is fixedly connected to the first slider 21;

[0047] The first support column 23 is detachably connected to the first mounting base 22;

[0048] A first nylon block 24 is detachably connected to the first support column 23. The first nylon block 24 is provided with a round hole 241, which is used for inserting a pin to fix the passenger compartment air conditioning unit.

[0049] Among them, Figure 1 In the middle, the first nylon block 24 in the two end supports on the same side is set toward the first nylon block 24 in the two end supports on the opposite side. Thus, by adjusting the relative distance between the two opposing first nylon blocks 24, the size of the support area for the passenger compartment air conditioning unit can be changed.

[0050] To achieve the desired distance between the two opposing first nylon blocks 24, a first groove 101 is provided on the bottom frame, and the first slider 21 slides in conjunction with the first groove 101. By adjusting the position of the first slider 21, the first nylon blocks 24 arranged on the first slider 21 are moved.

[0051] Reference Figure 1 The first mounting base 22 is provided with a first opening 221;

[0052] After the detachable connection between the first mounting base 22 and the first support column 23 is released, the first support column 23 is positioned from a vertical state to a horizontal state by relying on the first opening 221. Specifically, when positioned vertically, the first support column 23 is inserted into the first mounting base 22 and fixed by bolts or similar means; when positioned horizontally, the connection between the first support column 23 and the first mounting base 22 is released, but coarse positioning is achieved using bolts to prevent the first support column 23 from being lost.

[0053] Meanwhile, in this embodiment, a vertically arranged strip hole can be provided on the first mounting base 22, and the height of the first nylon block 24 can be adjusted by adjusting the position of the first mounting post 23 in the vertical direction relative to the first mounting base 22.

[0054] The first nylon block 24 can prevent scratches on the mounting surface of the passenger compartment air conditioning unit.

[0055] After the passenger cabin air conditioning unit is placed, use the pins inserted into the round holes to secure the unit to the maintenance fixture to prevent it from slipping during transportation.

[0056] Reference Figure 1 The intermediate support includes:

[0057] The second slider 31 is slidably mounted on the bottom frame;

[0058] The second mounting base 32 is fixedly connected to the second slider 31;

[0059] The second support column 33 is detachably connected to the second mounting base 32;

[0060] A second nylon block 34 is detachably connected to the second support column 33.

[0061] The bottom frame is provided with a second slide groove 102, and the second slider 31 forms a sliding fit with the second slide groove 102.

[0062] The second mounting base 32 is provided with a second opening 321;

[0063] After the detachable connection between the second mounting base 32 and the second support column 33 is released, the second support column 33 is placed from a vertical state to a horizontal state by relying on the second opening 321.

[0064] The installation method of the intermediate support on the bottom frame is the same as that of the end supports on the bottom frame, and will not be described in detail here. The only difference is that the second nylon block 34 of the intermediate support does not have positioning holes for positioning the passenger compartment air conditioning unit.

[0065] Reference Figure 1 The movable bottom frame includes:

[0066] Frame body 11;

[0067] The frame body 11 is provided with movable wheels 12.

[0068] The frame body 11 is formed by welding steel plates and square tubes;

[0069] The caster wheel 12 is a universal wheel, which drives the entire tooling to move around.

[0070] The maintenance fixtures for the air conditioning in the passenger compartment of high-speed trains also include:

[0071] The column 4 passes through and is fixed to the frame body 11 in a vertical direction, and the lower end of the column 4 is set higher than the moving wheel 12.

[0072] The column 4 is designed to allow multiple maintenance tools to be stacked and stored together. When stacked, the lower surface of the column 4 on one maintenance tool supports the upper surface of the column 4 on another maintenance tool.

[0073] Reference Figure 1 In this embodiment of the application, the side of the bottom frame has a forklift slot 103 for forklift transfer fixtures.

[0074] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0075] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0076] It should also be noted that, in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used for ease of description and simplification of the present invention, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, relational terms such as "first" and "second" are used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations, nor should they be construed as indicating or implying relative importance. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements does not include those elements, but also includes other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes the element.

[0077] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand this utility model, and the content of this specification should not be construed as a limitation of this utility model. Furthermore, for those skilled in the art, there will be different forms of changes in the specific implementation methods and application scope based on this utility model. It is neither necessary nor possible to exhaustively list all implementation methods here, but obvious changes or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A kind of for the maintenance tooling of motor train unit passenger room air conditioner, it is characterized in that, include: Movable bottom frame; End supports, which are rotatably arranged on the bottom frame; An intermediate support is rotatably arranged on the bottom frame and is positioned between the two end supports. The upper surfaces of the end supports and the intermediate supports together form a support surface for placing the air conditioning unit in the passenger compartment of the EMU.

2. The overhauling tool for the air conditioner of the passenger room of the motor train unit according to claim 1, characterized by, The end support includes: The first slider (21) is slidably mounted on the bottom frame; A first mounting base (22) is fixedly connected to the first slider (21); A first support column (23) is detachably connected to the first mounting base (22); A first nylon block (24) is detachably connected to the first support column (23). The first nylon block (24) is provided with a round hole (241) for inserting a pin to fix the passenger compartment air conditioning unit.

3. The maintenance tool for the air conditioner of the passenger compartment of the motor train unit according to claim 2, characterized by, The bottom frame is provided with a first slide groove (101), and the first slider (21) forms a sliding fit with the first slide groove (101).

4. The maintenance tool for the air conditioner of the passenger compartment of the motor train unit according to claim 2, characterized by, The first mounting base (22) is provided with a first opening (221); After the detachable connection between the first mounting base (22) and the first support column (23) is released, the first support column (23) is placed from a vertical state to a horizontal state by relying on the first opening (221).

5. The maintenance fixture for the air conditioning system in the passenger compartment of a high-speed train according to claim 1, characterized in that, The intermediate support includes: The second slider (31) is slidably mounted on the bottom frame; A second mounting base (32) is fixedly connected to the second slider (31); A second support column (33) is detachably connected to the second mounting base (32); A second nylon block (34) is detachably connected to the second support column (33).

6. The overhauling tool for the air conditioner of the passenger room of the motor train unit according to claim 5, characterized by, The bottom frame is provided with a second slide groove (102), and the second slider (31) and the second slide groove (102) form a sliding fit.

7. The overhauling tool for the air conditioner of the passenger room of the motor train unit according to claim 5, characterized by, The second mounting base (32) is provided with a second opening (321); After the detachable connection between the second mounting base (32) and the second support column (33) is released, the second support column (33) is placed from a vertical state to a horizontal state by means of the second opening (321).

8. The overhauling tool for the air conditioner of a passenger car of a train set according to claim 1, characterized by, The movable bottom frame includes: Framework body (11); The moving wheels (12) are provided on the frame body (11).

9. The maintenance tool for the air conditioner of the passenger compartment of the motor train unit according to claim 8, characterized by, The maintenance fixtures for the air conditioning in the passenger compartment of high-speed trains also include: A column (4) passes through and is fixed to the frame body (11) in a vertical direction, and the lower end of the column (4) is set higher than the moving wheel (12).

10. The overhauling tool for the air conditioner of the passenger room of the motor train unit according to claim 8, characterized by, The frame body (11) is formed by welding steel plates and square tubes.