Thickness-adjustable pressing plate airtightness detection device

Abstract

The utility model discloses an air tightness detection device with an adjustable thickness pressing plate, and belongs to the technical field of air conditioner pipe sealing detection. The limiting mechanism comprises a limiting frame and a height adjusting mechanism; the limiting frame is of a U-shaped structure, and the top of the limiting frame is movably connected with a limiting plate; the height adjusting mechanism is connected with the limiting frame, and the upper end of the height adjusting mechanism penetrates through the bottom of the limiting frame; the height adjusting mechanism is hollow, and an airtight connector is arranged in the height adjusting mechanism. The distance between the limiting plate and the height adjusting mechanism can be adjusted through the arranged height limiting mechanism, so that when the sealing performance of the automobile air conditioner pipe is tested, the limiting plate and the height adjusting mechanism are matched with each other to limit the positions of the limiting plates with different thicknesses; therefore, the situation that independent limiting mechanisms need to be designed for connectors of different specifications is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of airtightness testing devices, specifically an adjustable thickness pressure plate airtightness testing device. Background Technology

[0002] Automotive air conditioning pipes connect various air conditioning components into a single unit. To prevent refrigerant leakage, connectors are often used at the ends of the air conditioning pipes. The connector consists of a pressure plate, a fitting, a nut, bolts, and other components. After the air conditioning pipe is connected to the connector, its sealing performance needs to be tested. This is done by connecting the fitting to an airtightness testing device. During the test, to prevent the fitting from shaking and affecting the airtightness testing process, the airtightness testing device needs to limit the pressure plate. When the fitting model is different, the pressure plate thickness is different, thus requiring the design of a separate airtightness testing device. Therefore, an airtightness testing device that can be designed for different thicknesses is proposed. Summary of the Invention

[0003] To address the problems of existing technologies, this utility model provides an adjustable thickness pressure plate airtightness testing device, comprising: a limiting frame, the limiting frame having a U-shaped structure, and a limiting plate movably connected to the top of the limiting frame;

[0004] A height adjustment mechanism is provided, which is connected to the limiting frame, and the upper end of the height adjustment mechanism passes through the bottom of the limiting frame.

[0005] The height adjustment mechanism is hollow inside, and an airtight connector is provided inside the height adjustment mechanism to test the sealing performance of the car air conditioning pipe after the connector is connected to the upper end of the height adjustment mechanism.

[0006] By adjusting the distance between it and the limiting plate, limiting plates of different thicknesses can be positioned between the limiting plate and the height adjustment mechanism.

[0007] Furthermore, the top of one side of the limiting frame is rotatably connected to one end of the limiting plate, and a limiting post is provided on the top of the other side of the limiting frame. A corresponding slot adapted to the limiting post is provided at the other end of the limiting plate.

[0008] The limiting plate has an arc-shaped slot in the middle for connecting the automotive air conditioning pipe.

[0009] Furthermore, the height adjustment mechanism includes: a threaded tube, a first nut, and a second nut;

[0010] The threaded tube is connected to the bottom of the limiting frame, the upper end of the threaded tube passes through the limiting frame, and the lower end of the threaded tube is connected to the inflation line.

[0011] Both the first nut and the second nut are screwed onto the threaded tube, with the first nut located below the limiting bracket and the second nut located above the first nut;

[0012] The airtight joint is installed inside the threaded pipe.

[0013] Furthermore, the limiting frame includes: a base and a base plate;

[0014] The base plate is symmetrically arranged on both sides of the base;

[0015] Multiple deep holes are spaced apart on the substrate, and through holes are provided at the bottom of the deep holes. Fasteners are provided in the deep holes to connect the base to the substrate.

[0016] Furthermore, a sliding groove is provided on one side of the substrate near the base, and protruding ridges are provided on the opposite two sides of the base, the protruding ridges being slidably connected to the sliding groove.

[0017] The beneficial effects of this utility model are:

[0018] The height limiting mechanism can adjust the distance between the limiting plate and the height adjustment mechanism. When testing the sealing performance of the automotive air conditioning pipe, the limiting plate and the height adjustment mechanism work together to limit the position of the limiting plate of different thicknesses, thus avoiding the need to design separate limiting mechanisms for connectors of different specifications. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the airtightness detection device provided by this utility model;

[0020] Figure 2 This is a front structural diagram of the airtightness testing device provided by this utility model.

[0021] Figure label:

[0022] In the diagram: 1 is the limiting plate, 2 is the threaded pipe, 3 is the first nut, 4 is the second nut, 5 is the base, 6 is the base plate, and 7 is the car air conditioning pipe. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-2This utility model provides an adjustable thickness pressure plate air tightness detection device, including: a limiting frame, the limiting frame having a U-shaped structure, and a limiting plate 1 being movably connected to the top of the limiting frame;

[0025] The top of one side of the limiting frame is rotatably connected to one end of the limiting plate 1, and a limiting post is provided on the top of the other side of the limiting frame. A corresponding slot adapted to the limiting post is provided at the other end of the limiting plate 1.

[0026] The limiting plate 1 has an arc-shaped slot in the middle for connecting the automotive air conditioning pipe 7.

[0027] The limiting plate is used to restrict the position of the car air conditioning pipe. Then, in conjunction with the height adjustment mechanism below, it limits the pressure plate of the connector on the car air conditioning pipe, thereby preventing the car air conditioning pipe from shaking during the air tightness test.

[0028] The limiting frame includes: a base 5 and a base plate 6;

[0029] The base plate 6 is symmetrically arranged on both sides of the base 5;

[0030] The substrate 6 has a plurality of deep holes spaced apart, and the bottom of each deep hole has a through hole. Fasteners are installed in the deep holes to connect the base 5 to the substrate 6.

[0031] A sliding groove is provided on one side of the substrate 6 near the base 5, and protruding ridges are provided on the opposite two sides of the base 5, the protruding ridges being slidably connected to the sliding groove.

[0032] The distance between the top of the height adjustment mechanism and the limiting plate can also be adjusted by adjusting the position of the base on the base plate.

[0033] A height adjustment mechanism is provided, which is connected to the limiting frame, and the upper end of the height adjustment mechanism passes through the bottom of the limiting frame.

[0034] The height adjustment mechanism is hollow inside, and an airtight connector is provided inside the height adjustment mechanism to test the sealing performance of the car air conditioning pipe 7 after the connector is connected to the upper end of the height adjustment mechanism.

[0035] The height adjustment mechanism is used to adjust the distance between itself and the limiting plate, so as to position the pressure plates 8 of different thicknesses between the limiting plate 1 and the height adjustment mechanism.

[0036] The height adjustment mechanism includes: a threaded tube 2, a first nut 3, and a second nut 4;

[0037] The threaded tube 2 is connected to the bottom of the limiting frame, the upper end of the threaded tube 2 passes through the limiting frame, and the lower end of the threaded tube 2 is connected to the inflation pipe.

[0038] The first nut 3 and the second nut 4 are both screwed onto the threaded tube 2, with the first nut 3 located below the limiting frame and the second nut 4 located above the first nut;

[0039] The airtight joint is installed inside the threaded pipe 2.

[0040] The distance between the threaded tube and the limiting plate can be directly adjusted by loosening the first nut and the second nut. The pressure plate can also be limited by adjusting the second nut. The function of the first nut is to lock the threaded tube.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable thickness platen air tightness testing apparatus, characterized by, The utility model relates to a kind of automobile air conditioner pipe detection device, including: Limiting mechanism is used to fix the pressing plate of connector when detecting air tightness of automobile air conditioner pipe; The limiting mechanism includes: limiting frame and height adjusting mechanism; The limiting frame, the top of the limiting frame is movably connected with limiting plate; The height adjusting mechanism is connected with the limiting frame, and the upper end of the height adjusting mechanism is arranged through the bottom of the limiting frame; The height adjusting mechanism is hollow inside, and the inside of the height adjusting mechanism is provided with air-tight joint, for detecting the sealing property of automobile air conditioner pipe after the connection of connector and the upper end of height adjusting mechanism; By adjusting the spacing between the limiting plate and the height adjusting mechanism, different thicknesses of limiting plate can be positioned between the limiting plate and the height adjusting mechanism.

2. The adjustable thickness platen air tightness testing apparatus of claim 1, wherein, The top of one side of the limiting frame is rotatably connected with one end of the limiting plate, and the top of the other side of the limiting frame is provided with a limiting column, and the other end of the limiting plate is provided with a clamping groove corresponding to the limiting column; The middle of the limiting plate is provided with a notched groove with arc structure, for the connection of automobile air conditioner pipe.

3. The adjustable thickness platen air tightness testing apparatus of claim 1, wherein, The height adjusting mechanism includes: threaded pipe, first nut and second nut; The threaded pipe is connected with the bottom of the limiting frame, the upper end of the threaded pipe is arranged through the limiting frame, and the lower end of the threaded pipe is connected with the air charging pipeline; The first nut and the second nut are screwed on the threaded pipe, the first nut is below the limiting frame, and the second nut is above the first nut; The air-tight joint is arranged in the threaded pipe.

4. The adjustable thickness platen air tightness testing apparatus of claim 2, wherein, The limiting frame includes: base and base plate; The base is symmetrically provided with the base plate on both sides; Multiple deep holes are arranged on the base plate, and through holes are arranged at the bottom of the deep holes, and fasteners are arranged in the deep holes to connect the base and the base plate.

5. The adjustable thickness platen air tightness testing apparatus of claim 4, wherein, A sliding groove is arranged on one side of the base plate close to the base, and convex edges are arranged on opposite sides of the base, and the convex edges are slidably connected with the sliding groove.

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