Airtight test tool for arc-shaped combined sealing ring

Abstract

The utility model discloses an arc-shaped combined sealing ring airtightness test tool, which relates to the technical field of airtightness test tools, and comprises a support frame, the support frame is fixedly connected with a telescopic rod, the telescopic rod is fixedly connected with a gas injection device, the gas injection device is fixedly connected with a first gas transmission pipeline, and the first gas transmission pipeline is fixedly connected with a second gas transmission pipeline. The first gas transmission pipeline is fixedly connected with an upper mold, the upper mold is provided with a first vent hole, the upper mold is fixedly connected with a sealing ring, the vent hole communicates with the first gas transmission pipeline, the inner wall of the side wall of the supporting frame is fixedly connected with a fixing plate, and the fixing plate penetrates through and is fixedly connected with four second gas transmission pipelines; and the tops of the four second gas transmission pipelines are fixedly connected with a lower mold. The four telescopic rods are arranged to be connected with the gas injection device, the first gas transmission pipeline communicates with the upper mold, the second gas transmission pipeline communicates with the lower mold, and the integrated design of the gas injection and detection structure is achieved.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing fixtures, and in particular to an arc-shaped combined sealing ring airtightness testing fixture. Background Technology

[0002] In modern industrial sectors such as machinery manufacturing, aerospace, and automotive, arc-shaped composite sealing rings are key components ensuring the sealing performance of equipment. Their airtightness directly affects the operational stability and service life of the equipment. If the airtightness of the sealing ring fails to meet standards, it may lead to fluid leakage, equipment failure, or even serious safety accidents, causing huge economic losses.

[0003] With the rapid development of industrial technology, equipment operating environments are becoming increasingly complex, and the performance requirements for arc-shaped composite sealing rings are becoming increasingly stringent. To ensure that the sealing rings can function stably under various operating conditions, accurate and efficient airtightness testing has become an indispensable and important part of the manufacturing process. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the background art by proposing an arc-shaped combined sealing ring airtightness test fixture.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An airtightness testing fixture for an arc-shaped combined sealing ring includes a support frame. Four telescopic rods are fixedly connected to the top inner wall of the support frame. An air injection device is fixedly connected to the telescopic ends of the four telescopic rods. A first gas transmission pipeline is fixedly connected to the bottom of the air injection device. An upper mold is fixedly connected to the bottom of the first gas transmission pipeline. The upper mold has a first vent hole. A sealing ring is fixedly connected to the upper outer surface of the upper mold. The first vent hole communicates with the first gas transmission pipeline.

[0007] Preferably, a fixing plate is fixedly connected to the inner wall of the side wall of the support frame, and four second gas transmission pipelines are fixedly connected through the fixing plate. A lower mold is fixedly connected to the top of the four second gas transmission pipelines. The lower mold has a second vent hole, which communicates with the second gas transmission pipeline. A detection device is fixedly connected to the base of the second gas transmission pipeline.

[0008] Preferably, a third gas transmission pipeline is fixedly connected to the side wall of the four gas injection devices, and a gas source device is fixedly connected to the end of the third gas transmission pipeline away from the gas injection device.

[0009] Preferably, a display device is installed on the side wall of the support frame.

[0010] Preferably, the sealing ring is made of fluororubber, and the lower surface of the sealing ring is provided with anti-slip texture to enhance the fit with the lower mold and improve the sealing effect.

[0011] Preferably, the detection device and the display device are connected via a wireless transmission module. The display device is equipped with a touch control screen, which allows for switching between different detection data via touch operation, and for storing and exporting the detection data.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model integrates the gas injection device by connecting four telescopic rods on the inner wall of the top of the support frame, and connects the first gas transmission pipeline to the upper mold and the second gas transmission pipeline to the lower mold, thus achieving an integrated design of the gas injection and testing structure. This structure allows for flexible adjustment of the distance between the upper and lower molds, ensuring that the arc-shaped combined sealing ring remains in a stable sealing state during testing, effectively improving gas transmission efficiency and testing accuracy.

[0014] 2. This utility model, by setting up four testing fixtures, can simultaneously conduct airtightness tests on multiple sealing ring samples, improving testing efficiency by 2-4 times compared to single-fixture or dual-fixture designs. For example, in mass production scenarios, four samples can be tested at the same time, shortening the overall quality inspection cycle and adapting to the needs of assembly line production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an arc-shaped combined sealing ring airtightness testing fixture proposed in this utility model;

[0016] Figure 2 This is a cross-sectional structural schematic diagram of an airtightness testing fixture for an arc-shaped combined sealing ring proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the first gas transmission pipeline of an arc-shaped combined sealing ring airtightness testing fixture proposed in this utility model;

[0018] Figure 4 This is a rear view structural schematic diagram of an arc-shaped combined sealing ring airtightness testing fixture proposed in this utility model;

[0019] Figure 5 This is a cross-sectional view of the third gas transmission pipeline of an arc-shaped combined sealing ring airtightness testing fixture proposed in this utility model.

[0020] In the diagram: 1 Support frame, 2 Telescopic rod, 3 Gas injection device, 4 First gas transmission pipeline, 5 Upper mold, 6 Sealing ring, 7 First vent hole, 8 Fixing plate, 9 Second gas transmission pipeline, 10 Lower mold, 11 Second vent hole, 12 Detection device, 13 Third gas transmission pipeline, 14 Gas source device, 15 Display device. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 An airtightness testing fixture for an arc-shaped combined sealing ring includes a support frame 1, which is frame-shaped and has four telescopic rods 2 welded and fixed to its top inner wall. The telescopic ends of the four telescopic rods 2 are all fixedly connected to an air injection device 3 by bolts. A first gas transmission pipeline 4 is welded and fixed to the bottom of the air injection device 3, and the bottom of the first gas transmission pipeline 4 is welded and connected to an upper mold 5.

[0023] The upper mold 5 has a first vent hole 7. The upper outer surface of the upper mold 5 is fixedly connected to the sealing ring 6 by glue. The first vent hole 7 is connected to the first gas transmission pipeline 4, so that gas can flow from the gas injection device 3 into the first vent hole 7 of the upper mold 5 through the first gas transmission pipeline 4.

[0024] A fixing plate 8 is welded and fixed to the inner wall of the support frame 1. The fixing plate 8 has four adapter holes, and four second gas transmission pipelines 9 pass through the adapter holes and are fixed to the fixing plate 8 by welding. A lower mold 10 is welded and fixed to the top of the four second gas transmission pipelines 9. The lower mold 10 has a second vent hole 11, which communicates with the second gas transmission pipelines 9. A detection device 12 is fixedly connected to the base of the second gas transmission pipelines 9 by bolts for detecting gas leaks.

[0025] The side walls of the four gas injection devices 3 are all welded and fixedly connected to a third gas transmission pipeline 13. The end of the third gas transmission pipeline 13 away from the gas injection device 3 is connected to a gas source device 14 through a flange, which provides a stable gas source for the entire airtightness test fixture. The side wall of the support frame 1 is equipped with a display device 15 by screws, which is used to display relevant data during the airtightness test.

[0026] The sealing ring 6 is made of fluororubber, and the lower surface of the sealing ring 6 is provided with cross-shaped anti-slip texture to enhance the fit with the lower mold 10 and improve the sealing effect. The detection device 12 and the display device 15 are connected by a wireless transmission module. The display device 15 is provided with a touch control screen, which is equipped with a data switching button, a storage button and an export button. Different detection data can be switched and displayed through touch operation, and the detection data can be stored and exported.

[0027] The detailed working process of this utility model is as follows:

[0028] Place the arc-shaped combined sealing ring on the lower mold 10, and activate the four telescopic rods 2 on the inner top wall of the support frame 1. This moves the air injection device 3 and the upper mold 5 connected to it downwards until the upper mold 5 and the lower mold 10 are closed. At this time, the sealing ring 6 on the upper mold 5 is tightly fitted with the lower mold 10. Utilizing the characteristics of the sealing ring 6, which is made of fluororubber and has anti-slip texture on its lower surface, the sealing effect is enhanced, forming a closed test space.

[0029] The gas source device 14 is turned on, and gas is transmitted to the gas injection device 3 through the third gas transmission pipeline 13. Then, it is injected into the closed test space where the sealing ring is located through the first gas transmission pipeline 4 and the first vent 7 of the upper mold 5. The injected gas enters the second vent 11 of the lower mold 10 through the gap between the sealing ring and the mold (if present), and is subsequently transmitted to the detection device 12 through the second gas transmission pipeline 9. The detection device 12 detects and analyzes the gas pressure, flow rate, and other data to determine the airtightness performance of the sealing ring.

[0030] The detection device 12 transmits the detected data to the display device 15 via a wireless transmission module. The touch control screen of the display device 15 displays the relevant test data on the airtightness performance of the sealing ring in real time. Operators can switch between different test data displays via touch operation, and can also store and export the test data for subsequent analysis and recording.

[0031] After the test is completed, turn off the air source device 14, control the telescopic rod 2 to lift the upper mold 5, and take out the tested sealing ring.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An arc-shaped combined seal ring air tightness test tooling, comprising a support frame (1), characterized in that: Four telescopic rods (2) are fixedly connected to the top inner wall of the support frame (1). An air injection device (3) is fixedly connected to the telescopic ends of the four telescopic rods (2). A first gas transmission pipeline (4) is fixedly connected to the bottom of the air injection device (3). An upper mold (5) is fixedly connected to the bottom of the first gas transmission pipeline (4). The upper mold (5) has a first vent hole (7). A sealing ring (6) is fixedly connected to the upper outer surface of the upper mold (5). The first vent hole (7) is connected to the first gas transmission pipeline (4).

2. The arc-shaped combined sealing ring airtight test tool according to claim 1, characterized in that: The support frame (1) has a fixed plate (8) fixedly connected to the inner wall of its side wall. The fixed plate (8) has four second gas transmission pipelines (9) through which it is fixedly connected. The top of the four second gas transmission pipelines (9) is fixedly connected to a lower mold (10). The lower mold (10) has a second vent hole (11) which is connected to the second gas transmission pipeline (9). The base of the second gas transmission pipeline (9) is fixedly connected to a detection device (12).

3. The arc-shaped combined sealing ring airtight test tool according to claim 2, characterized in that: The side walls of the four gas injection devices (3) are fixedly connected to a third gas transmission pipeline (13), and the end of the third gas transmission pipeline (13) away from the gas injection device (3) is fixedly connected to a gas source device (14).

4. The arc-shaped combined sealing ring airtight test tool according to claim 3, characterized in that: A display device (15) is installed on the side wall of the support frame (1).

5. The arc-shaped combined seal ring airtight test tooling according to claim 4, characterized in that: The sealing ring (6) is made of fluororubber, and the lower surface of the sealing ring (6) is provided with anti-slip texture to enhance the fit with the lower mold (10) and improve the sealing effect.

6. The arc-shaped combined seal ring air tightness test tooling according to claim 5, characterized in that: The detection device (12) and the display device (15) are connected by a wireless transmission module. The display device (15) is equipped with a touch control screen, which can switch between different detection data through touch operation, and store and export the detection data.

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