Track traffic air conditioner electromagnetic compatibility test table

Abstract

The utility model relates to the technical field of electromagnetic compatibility test of rail transit air-conditioning products, and discloses a rail transit air-conditioning electromagnetic compatibility test table, which comprises a movable lifting base, a table top and a metal plate, the center of the movable lifting base is hollowed out, the upper end of the movable lifting base is provided with a plurality of supporting cylinders, hydraulic action cylinders are arranged in the supporting cylinders, the center of the table top is hollowed out, and the metal plate is arranged on the table top. A supporting column inserted into a supporting cylinder on the movable lifting base is arranged at the lower end of the table top and supported by a hydraulic action cylinder, an inserting groove is formed in the outer side of the table top, and the metal plate is inserted into the table top through the inserting groove. The movable lifting base is arranged, the actual height of a sample is changed on the premise that the sample to be tested is not carried through the action of the hydraulic actuating cylinder, the requirement for completing switching between emission arrangement and anti-interference arrangement through single-person operation can be met, and the sample can be conveniently carried among different test sites in cooperation with the universal wheels supported at the bottom.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic compatibility testing of rail transit air-conditioning products, in particular to an electromagnetic compatibility testing table for rail transit air-conditioning. Background Art

[0002] At present, in the EMC test of rail transit air-conditioning equipment, the test is generally carried out as desktop equipment at the test site, referring to the requirements of GB / T6113.201-2018, GB / T6113.203-2016, and IEC61000-6-2:2016 standards. For desktop equipment, when conducting emission tests, the sample needs to be installed on an insulating table with a height of 80cm from the reference ground plane. For desktop equipment, when conducting anti-interference tests, the sample needs to be installed on a table with a reference ground plane 80cm from the ground, and the sample must be raised with a 10cm high insulating support.

[0003] Conventional test tables are all 80cm high insulating tables. Therefore, when switching between anti-interference tests and emission tests, large samples need to be lifted and a ground reference plate and a 10cm high insulating support need to be installed on the table. When testing large rail transit equipment, special lifting equipment is required to lift the samples. When available equipment is limited, the layout switching between anti-interference tests and emission tests cannot be completed by manpower. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing EMC test table has a fixed height, and when testing a large test sample, it needs to be lifted up with special lifting equipment and then an insulating support needs to be installed, which is inconvenient to operate.

[0005] In order to solve the above technical problems, the technical solution of the utility model is to provide a rail transit air conditioning electromagnetic compatibility test table, including a mobile lifting base, a desktop and a metal plate. The center of the mobile lifting base is hollow, and a plurality of support cylinders are provided at the upper end thereof. A hydraulic cylinder is provided in the support cylinder. The center of the desktop is hollow, and a pillar inserted into the support cylinder on the mobile lifting base is provided at the lower end thereof, and the pillar is supported by the hydraulic cylinder. A slot is provided on the outer side of the desktop, and the metal plate is inserted into the desktop from the slot.

[0006] Optionally, a plurality of first slots are provided on the outer sides of the two longer sides of the desktop, and second slots are provided on the outer sides of the two shorter sides of the desktop, and the first slots are higher than the second slots.

[0007] Optionally, the distance between the second slot and the top of the desktop is 10 cm.

[0008] Optionally, the metal plate includes a first metal plate and a second metal plate, wherein two second metal plates are provided and are respectively inserted into the desktop from the second slots to dock to form a panel, and two first metal plates are provided and are respectively inserted into the desktop from the first slots and pressed on the second metal plates.

[0009] Optionally, a movable crossbeam is provided on the table top, slide rails are provided on the upper ends of the two longer sides of the table top, the movable crossbeam is arranged above the slide rails, and sliders are provided on the lower surfaces of both ends of the movable crossbeam, and the sliders are respectively inserted into the slide rails on both sides of the table top.

[0010] Optionally, a plurality of universal wheels are arranged in an array at the bottom of the mobile lifting base.

[0011] In summary, the utility model has at least one of the following beneficial effects:

[0012] 1. The utility model is provided with a movable lifting base. Through the action of the hydraulic actuator, the actual height of the sample can be changed without moving the sample to be tested. It can meet the needs of a single person to complete the switching between the launch arrangement and the anti-interference arrangement. With the universal wheels supported at the bottom, it is convenient to carry the sample between different test sites.

[0013] 2. When the sample is switched from the anti-interference test arrangement to the launch test arrangement, the utility model can complete the conversion of the arrangement requirements by lowering the height of the hydraulic actuator and removing the second metal plate and the first metal plate without using external force to lift the sample. Conversely, the sample can be switched from the launch test arrangement to the anti-interference test arrangement.

[0014] 3. The desktop and the movable lifting base in the utility model are hollowed out in the middle, and with the movable crossbeam structure, the position of the desktop supporting the sample can be adjusted, so that the test table can hold samples of different sizes and the samples can be easily connected to the drainage pipe and cables.

[0015] 4. The utility model is provided with a movable crossbeam. When placing the sample on the desktop, the position of the crossbeam can be adjusted to free up the slot that is most suitable for forklift to enter and withdraw. When wiring the sample, the position of the crossbeam can also be adjusted in advance to free up the most suitable wiring path. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall assembly of the utility model;

[0017] Figure 2 This is a schematic diagram of the first slot structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the second slot structure of the utility model;

[0019] Figure 4This is a schematic diagram of the cross-sectional structure of the support tube of the utility model;

[0020] In the figure: 1. Mobile lifting base; 11. Universal wheel; 12. Hydraulic actuator; 13. Support cylinder; 2. Desktop; 21. First slot; 22. Second slot; 23. Support column; 3. Mobile crossbeam; 41. First metal plate; 42. Second metal plate. DETAILED DESCRIPTION

[0021] The following combination Figure 1-4 The utility model is described in further detail.

[0022] The utility model discloses a rail transit air conditioning electromagnetic compatibility test table, referring to Figure 1 and Figure 4 , including a mobile lifting base 1, a desktop 2 and a metal plate. The mobile lifting base 1 is hollowed out in the center, and a plurality of support cylinders 13 are provided at the upper end thereof. A hydraulic cylinder 12 is provided in the support cylinder 13. The desktop 2 is hollowed out in the center, and a support column 23 is provided at the lower end thereof to be inserted into the support cylinder 13 on the mobile lifting base 1, and the support column 23 is supported by the hydraulic cylinder 12. A slot is provided on the outer side of the desktop 2, and the metal plate is inserted into the desktop 2 from the slot. A plurality of universal wheels 11 are arranged in a display at the bottom of the mobile lifting base 1.

[0023] In a further embodiment, referring to Figure 2 and Figure 3 A plurality of first slots 21 are provided on the outer sides of the longer sides of the desktop 2, and second slots 22 are provided on the outer sides of the shorter sides of the desktop 2. The first slots 21 are higher than the second slots 22. The metal plate includes a first metal plate 41 and a second metal plate 42. Two second metal plates 42 are provided, which are respectively inserted into the desktop 2 from the second slots 22 to form a panel. Two first metal plates 41 are provided, which are respectively inserted into the desktop 2 from the first slots 21 and pressed on the second metal plates 42 to prevent the second metal plates 42 from shaking.

[0024] In a further embodiment, referring to Figure 1 A movable crossbeam 3 is provided on the desktop 2, and slide rails are provided on the upper ends of the longer two sides of the desktop 2. The movable crossbeam 3 is arranged above the slide rails, and sliders are provided on the lower surfaces of both ends of the movable crossbeam 3. The sliders are respectively inserted into the slide rails on both sides of the desktop 2. The two ends of the movable crossbeam 3 are slightly protruding, and can slide back and forth in a straight line along the direction of the slide rail.

[0025] Example

[0026] In this embodiment, four universal wheels 11 are provided, which are respectively located at the four corners of the bottom of the mobile lifting base 1, to support the mobile lifting base 1 and control the translation and locking of the spatial position of the entire table body; eight support tubes 13 are provided, which are respectively located on both sides of the mobile lifting base 1, and the distance between the second slot 22 and the top of the desktop 2 is 10 cm.

[0027] When the utility model is in use, the mobile lifting base 1 can change the actual height of the sample without moving the sample to be tested through the action of the hydraulic actuator 12, and cooperate with the universal wheel 11 supported at the bottom to facilitate the transportation of the sample between different test sites; when the sample is switched from the anti-interference test arrangement to the launch test arrangement, the height of the hydraulic actuator 12 can be lowered without using external force to lift the sample, and the second metal plate 42 and the first metal plate 41 can be removed to complete the conversion of the arrangement requirements. Conversely, the sample can be switched from the launch test arrangement to the anti-interference test arrangement.

[0028] The utility model is provided with a lifting device, and a slot is opened 10 cm below the desktop for inserting a ground reference plate. There is no need to lift the sample with a forklift and then arrange it, and a single person can complete the switching between the emission arrangement and the anti-interference arrangement. In conjunction with the movable crossbeam 3, the position of the desktop supporting the sample can be adjusted, so that samples of different sizes can be placed on the test table. Through the mobile take-off and landing function of the electromagnetic compatibility rail transit air-conditioning test table and the detachable metal reference plane structure, a single person can complete the arrangement switching of the anti-interference test and the emission test, which solves the pain point that the test arrangement switching cannot be completed when the available equipment is limited.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. Rail transit air conditioning electromagnetic compatibility test table, characterized in that: The invention comprises a movable lifting base (1), a table top (2) and a metal plate. The movable lifting base (1) is hollowed out in the center and is provided with a plurality of support cylinders (13) at its upper end. A hydraulic cylinder (12) is provided in the support cylinder (13). The table top (2) is hollowed out in the center and is provided with a support column (23) inserted into the support cylinder (13) on the movable lifting base (1) at its lower end. The support column (23) is supported by the hydraulic cylinder (12). A slot is provided on the outer side of the table top (2). The metal plate is inserted into the table top (2) through the slot.

2. The rail transit air conditioning electromagnetic compatibility test table according to claim 1 is characterized in that: A plurality of first slots (21) are arranged on the outer sides of the longer sides of the desktop (2), and a second slot (22) is arranged on the outer sides of the shorter sides of the desktop (2), wherein the first slots (21) are higher than the second slots (22).

3. The rail transit air conditioning electromagnetic compatibility test table according to claim 2 is characterized in that: The distance between the second slot (22) and the top of the desktop (2) is 10 cm.

4. The rail transit air conditioning electromagnetic compatibility test table according to claim 3 is characterized in that: The metal plate comprises a first metal plate (41) and a second metal plate (42), wherein two second metal plates (42) are provided and are respectively inserted into the desktop (2) from the second slots (22) to form a panel, and two first metal plates (41) are provided and are respectively inserted into the desktop (2) from the first slots (21) and pressed on the second metal plates (42).

5. The rail transit air conditioning electromagnetic compatibility test table according to claim 1, characterized in that: The desktop (2) is provided with a movable crossbeam (3), the upper ends of the two longer sides of the desktop (2) are provided with slide rails, the movable crossbeam (3) is arranged above the slide rails, and the lower surfaces of the two ends of the movable crossbeam (3) are provided with sliders, which are respectively inserted into the slide rails on both sides of the desktop (2).

6. The rail transit air conditioning electromagnetic compatibility test table according to claim 1, characterized in that: The bottom of the mobile lifting base (1) is provided with a plurality of universal wheels (11) arranged in an array.

Images