Cabinet air tightness test equipment

Abstract

The utility model discloses a machine case air tightness test device, relates to the technical field of air tightness detection, and provides the following scheme aiming at the problem that existing customized equipment with specific machine case size, shape and special test requirements needs to be specially customized: the machine case air tightness test device comprises a main frame, the main frame comprises a square frame, the interior of the square frame is connected with a lifting mechanism; a flat plate is connected above the four lifting mechanisms; an air hole is formed in the flat plate, and a case to be tested is placed between the flat plate and the main frame; according to the utility model, the structure is novel, the height of the upper sealing top can be adjusted according to the size of a to-be-tested case through the cooperative connection of the fixed rod and the movable rod, and the test requirements of cases with different sizes can be met; the four air cylinders drive the flat plate to ascend and descend and cooperate with the square frame above to quickly seal the case to be tested, so that quick testing is facilitated, and the testing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to a chassis air tightness testing device. Background Art

[0002] With the widespread application and rapid development of modern electronic products, customers have increasingly higher requirements for the airtightness of chassis. In various complex and changing application scenarios, the chassis is a key component that protects internal electronic components. Its airtightness is directly related to the reliability, durability and overall performance of the product.

[0003] However, although there are many types of air tightness testing equipment on the current market, most of them can only meet some general testing needs. Customized equipment for specific chassis sizes, shapes and special testing requirements needs to be specially customized, which brings certain inconveniences to the company's production and R&D, and cannot efficiently and flexibly respond to the testing needs of chassis of different sizes. Utility Model Content

[0004] The utility model provides a chassis air tightness testing device, which solves the existing problems.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a chassis air tightness testing device, comprising:

[0006] A main frame, comprising a square frame, wherein a lifting mechanism is connected to the interior of the square frame;

[0007] Lifting mechanisms, wherein four lifting mechanisms are provided, the four lifting mechanisms are respectively connected to the four corners inside the main frame, and a flat plate is connected above the four lifting mechanisms;

[0008] A flat plate, wherein air holes are provided inside the flat plate, and a chassis to be tested is placed between the flat plate and the main frame, and the flat plate is used to cooperate with the main frame to form a closed test space;

[0009] The adjusting mechanism is symmetrically connected to both sides of the main frame, and is used to move and adjust the overall test height of the main frame.

[0010] Preferably, there are two square frames, which are arranged in parallel up and down, and have a rectangular frame structure. The lower square frame is connected to a lifting mechanism, and the four corners of the two square frames are connected to vertical rods, and one side of the vertical rod is connected to an adjustment mechanism.

[0011] Preferably, the main frame further includes a cross bar, two of which are provided, the two cross bars are symmetrically connected to the top of the square frame, and a plurality of square frames are connected below the two cross bars at equal intervals.

[0012] Preferably, the lifting mechanism includes a square plate, and the four square plates are provided. The four square plates are connected to the top of the square frame, the top of the square plate is connected to a cylinder, and the top of the four cylinders is commonly connected to a flat plate.

[0013] Preferably, the adjustment mechanism includes a fixed rod, the fixed rod is connected to one side of the vertical rod, and both sides of the fixed rod are connected to movable rods, and the upper part of the movable rod is connected to the main frame.

[0014] Preferably, a plurality of adjustment holes are provided on both sides of the fixed rod and the movable rod, and the adjustment holes provided on the fixed rod and the movable rod correspond to each other.

[0015] The beneficial effects of the utility model are as follows: the overall structure of the device is compact, the square frame and the vertical rods are connected and fixed by welding, which is easy to manufacture and maintain, and the height of the upper cap can be adjusted according to the size of the chassis to be tested by the connection of the fixed rod and the movable rod, which adapts to the testing requirements of chassis of different sizes; the flat plate is driven to rise and fall by four cylinders, and the chassis to be tested is quickly closed in cooperation with the upper frame to carry out rapid testing and improve test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 It is a schematic diagram of the main frame of the present utility model.

[0018] Figure 3 This is a schematic diagram of the lifting mechanism of the present utility model.

[0019] Figure 4 This is a schematic diagram of the disassembly of the adjustment mechanism of the utility model.

[0020] Numbers in the figure: 1. Main frame; 101. Square frame; 102. Vertical rod; 103. Horizontal rod; 104. Square frame; 2. Lifting mechanism; 201. Square plate; 202. Cylinder; 3. Flat plate; 301. Air hole; 4. Adjusting mechanism; 401. Fixed rod; 402. Moving rod; 403. Adjusting hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-Figure 4A chassis air tightness testing device includes a main frame 1, the main frame 1 includes a square frame 101, and a lifting mechanism 2 is connected to the inside of the square frame 101; the lifting mechanism 2 is provided with four lifting mechanisms 2, and the four lifting mechanisms 2 are respectively connected to the four corners inside the main frame 1, and a flat plate 3 is connected above the four lifting mechanisms 2; the flat plate 3 has air holes 301 inside, and a chassis to be tested is placed between the flat plate 3 and the main frame 1, and the flat plate 3 is used to cooperate with the main frame 1 to form a closed test space; the adjusting mechanism 4, the adjusting mechanism 4 is symmetrically connected to both sides of the main frame 1, and the adjusting mechanism 4 is used to move and adjust the overall test height of the main frame 1.

[0023] Reference Figure 2 There are two square frames 101, which are arranged in parallel up and down, and the two square frames 101 are rectangular frame structures. The lower square frame 101 is connected to a lifting mechanism 2, and the four corners of the two square frames 101 are connected to vertical rods 102, and one side of the vertical rod 102 is connected to an adjustment mechanism 4. The main frame 1 also includes a cross bar 103, and there are two cross bars 103. The two cross bars 103 are symmetrically connected to the top of the square frame 101, and a plurality of square frames 104 are connected at equal intervals below the two cross bars 103. The vertical rods 102 are connected and fixed to the square frame 101 by welding.

[0024] Reference Figure 3 The lifting mechanism 2 includes a square plate 201. There are four square plates 201. The four square plates 201 are connected to the top of the square frame 101. A cylinder 202 is connected to the top of the square plate 201, and a flat plate 3 is connected to the top of the four cylinders 202. An air hole 301 is opened in the flat plate 3. The air hole 301 is connected to the air pressure control system. The air pressure control system includes a pressure gauge and an air pressure regulating valve, which are used to set and accurately control the air pressure in the test space. By pushing the flat plate 3, the chassis to be tested is pushed tightly to the square frame 104 for fixation.

[0025] Reference Figure 4 The adjustment mechanism 4 includes a fixed rod 401, which is connected to one side of the vertical rod 102, and mobile rods 402 are connected on both sides of the fixed rod 401. The main frame 1 is connected above the mobile rod 402. A plurality of adjustment holes 403 are provided on both sides of the fixed rod 401 and the mobile rod 402, and the adjustment holes 403 provided on the fixed rod 401 and the mobile rod 402 correspond to each other. According to the height of the chassis to be tested, the connection position of the fixed rod 401 and the mobile rod 402 is adjusted by sliding, and the connection is fixed through the adjustment holes 403.

[0026] Working principle: First, place the chassis to be tested on the flat plate 3, drive the flat plate 3 to rise through the cylinder 202, press the chassis to be tested between the flat plate 3 and the frame 104, and start the inflation device. For example, inflate the box through the air hole 301 opened in the middle of the flat plate 3 until the pressure gauge shows a set value such as 0.3 MPa. Pause for about 40 seconds and observe whether the pressure gauge shows a pressure drop. If there is no drop, it proves that the chassis meets the IP67 level requirements. After the test is completed, drive the flat plate 3 down through the cylinder 202 and take out the chassis to be tested.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A chassis air tightness testing device, characterized in that: include: A main frame (1), the main frame (1) comprising a square frame (101), the square frame (101) being internally connected to a lifting mechanism (2); A lifting mechanism (2), wherein four lifting mechanisms (2) are provided, and the four lifting mechanisms (2) are respectively connected to the four corners inside the main frame (1), and a flat plate (3) is connected above the four lifting mechanisms (2); A flat plate (3), wherein an air hole (301) is provided inside the flat plate (3), and a chassis to be tested is placed between the flat plate (3) and the main frame (1), and the flat plate (3) is used to cooperate with the main frame (1) to form a closed test space; An adjusting mechanism (4) is symmetrically connected to both sides of the main frame (1), and the adjusting mechanism (4) is used to move and adjust the overall test height of the main frame (1).

2. The chassis air tightness testing device according to claim 1, characterized in that: Two square frames (101) are provided, and the two square frames (101) are arranged in parallel up and down, and the two square frames (101) are rectangular frame structures. The lower square frame (101) is connected to a lifting mechanism (2), and the four corners of the two square frames (101) are commonly connected to a vertical rod (102), and one side of the vertical rod (102) is connected to an adjustment mechanism (4).

3. The chassis air tightness testing device according to claim 1, characterized in that: The main frame (1) further comprises a crossbar (103), wherein two crossbars (103) are provided, the two crossbars (103) are symmetrically connected to the top of the square frame (101), and a plurality of square frames (104) are connected below the two crossbars (103) at equal intervals.

4. The chassis air tightness testing device according to claim 1, characterized in that: The lifting mechanism (2) comprises a square plate (201), four of which are provided. The four square plates (201) are connected to the top of the square frame (101), a cylinder (202) is connected to the top of the square plate (201), and a flat plate (3) is commonly connected to the top of the four cylinders (202).

5. The chassis air tightness testing device according to claim 2, characterized in that: The adjustment mechanism (4) comprises a fixed rod (401), the fixed rod (401) is connected to one side of the vertical rod (102), and the two sides of the fixed rod (401) are connected to movable rods (402), and the upper part of the movable rod (402) is connected to the main frame (1).

6. The chassis air tightness testing device according to claim 5, characterized in that: A plurality of adjustment holes (403) are provided on both sides of the fixed rod (401) and the movable rod (402), and the adjustment holes (403) provided on the fixed rod (401) and the movable rod (402) correspond to each other.

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