A gas wave tube airtightness testing machine

Abstract

The utility model discloses a kind of gas corrugated pipe air tightness testing machines, including base, the surface of the base is fixedly assembled with bearing, the inner ring surface of the bearing is fixedly assembled with rotary drum, the rotary drum extends to the inner chamber of base, the inner wall of the base is fixedly assembled with baffle, the inner wall of rotary drum and baffle is rotatably connected, the sidewall of the base is fixedly communicated with air pipe, the air pipe is located at the downside of baffle, the outer wall upper end of the rotary drum is fixedly communicated with hollow cylinder, four solenoid valves are uniformly fixedly communicated around the hollow cylinder, by base and hydraulic cylinder on air tightness testing machine are connected, can by moving base, control clamp clamps gas corrugated pipe test piece, by the cooperation of bearing and rotary drum, it is convenient to rotate the hollow cylinder of upper end, and cooperate with the solenoid valve connection of outside end different clamp, ensure that the application range of equipment is extensive, can reduce the time of replacing clamp simultaneously, ensure the efficiency of test.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe air tightness testing technology, specifically to a gas corrugated pipe air tightness testing machine. Background Technology

[0002] Gas corrugated pipes (such as stainless steel corrugated hoses, aluminum-plastic composite corrugated pipes, etc.) are key flexible components connecting gas pipelines to stoves / water heaters. Their airtightness is directly related to the safety of gas use. An airtightness testing machine is a special device used to test whether corrugated pipes leak under specified pressure. Its core function is to test the sealing performance of the pipe body by simulating working pressure (usually 0.1~0.4MPa, close to the pressure after the gas meter). Existing corrugated pipes have various types of joints at both ends, and the corrugated body has a periodic concave-convex structure. Traditional clamps are mostly of a single design, requiring frequent replacement of clamp joints, which is time-consuming and labor-intensive. Utility Model Content

[0003] The purpose of this invention is to provide a gas bellows air tightness testing machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a gas bellows airtightness testing machine, comprising a base, a bearing fixedly mounted on the surface of the base, a rotating cylinder fixedly mounted on the inner ring surface of the bearing, the rotating cylinder extending into the inner cavity of the base, a partition fixedly mounted on the inner wall of the base, the rotating cylinder rotatably connected to the inner wall of the partition, a vent pipe fixedly connected to the side wall of the base, the vent pipe being located below the partition, a hollow cylinder fixedly connected to the upper end of the outer wall of the rotating cylinder, and four solenoid valves evenly fixedly connected around the circumference of the hollow cylinder.

[0005] Preferably, it also includes a flared connector, a threaded connector, and a crimp connector, wherein the flared connector, the threaded connector, and the crimp connector are respectively connected to the outer ends of three different solenoid valves.

[0006] Preferably, it also includes a drive adjustment structure, which is matched with the rotating drum; The drive adjustment structure includes a first gear, which is fixedly mounted on the outer wall of the rotating cylinder. The first gear is located on the upper side of the partition and has a gap between it and the partition. A rotating shaft is rotatably mounted on one side of the surface of the partition. A second gear is fixedly mounted on the outer wall of the rotating shaft. The second gear is located on the upper side of the partition and has a gap between it and the partition. The first gear and the second gear mesh with each other. A servo motor is connected to the upper end of the rotating shaft. The servo motor is fixedly connected to the surface of the base. The motor shaft of the servo motor passes through the base and is fixedly connected to the rotating shaft.

[0007] Preferably, a piston is inserted into the inner wall of the solenoid valve, and the piston is inserted when the solenoid valve is not in use.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: The base is connected to the hydraulic cylinder on the airtightness testing machine. By moving the base, the clamps can be controlled to clamp the gas bellows specimen. The upper hollow cylinder can be easily rotated through the cooperation of the bearings and the rotating drum. Different clamps can be connected via the solenoid valve on the outer end, ensuring a wide range of applicability. This also reduces the time spent changing clamps, ensuring testing efficiency. For different connector types (threaded / press-fit / flared, etc.), quick-change connector modules are configured to ensure seamless connection between the connector and the testing machine's gas circuit interface. Frequent replacement of the entire clamp is unnecessary; only the connector module needs to be replaced to adapt to various specifications. Connectors can be flared, threaded, or press-fit. Multiple solenoid valves are also provided to accommodate more types of connectors. The base is separated by a partition, ensuring a smaller gas storage space within the base, which better ensures the gas source enters the rotating drum, guaranteeing the testing effect. It is convenient to use and highly practical. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a partial structural cross-sectional view of the present invention; Figure 3 This is a partial 3D schematic diagram of the structure; Figure 4 A three-dimensional schematic diagram of the piston assembly.

[0010] In the diagram: 1-base, 2-bearing, 3-rotating cylinder, 4-hollow cylinder, 5-solenoid valve, 6-flared connector, 7-threaded connector, 8-press connector, 9-drive adjustment structure, 91-first gear, 92-second gear, 93-rotating shaft, 94-servo motor, 10-vent pipe, 11-partition plate, 12-piston. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] Please see Figure 1-4This utility model provides a gas bellows air tightness testing machine, including a base 1, a bearing 2 fixedly mounted on the surface of the base 1, a rotating cylinder 3 fixedly mounted on the inner ring surface of the bearing 2, the rotating cylinder 3 extending into the inner cavity of the base 1, a partition 11 fixedly mounted on the inner wall of the base 1, the rotating cylinder 3 being rotatably connected to the inner wall of the partition 11, a vent pipe 10 fixedly connected to the side wall of the base 1, the vent pipe 10 being located below the partition 11, a hollow cylinder 4 fixedly connected to the upper end of the outer wall of the rotating cylinder 3, and four solenoid valves 5 evenly fixedly connected around the hollow cylinder 4.

[0013] The base 1 is connected to the hydraulic cylinder on the airtightness testing machine. By moving the base 1, the clamps can be controlled to clamp the gas bellows specimen. The bearing 2 and the rotating drum 3 cooperate to facilitate the rotation of the upper hollow cylinder 4. The solenoid valve 5 on the outer end can be used to connect to different clamp joints, ensuring the wide applicability of the equipment. At the same time, it can reduce the time for changing clamps and ensure the efficiency of the test. Multiple solenoid valves 5 are reserved to accommodate more types of joints. The partition 11 divides the space inside the base 1, ensuring that the gas space inside the base 1 is reduced, which can better ensure that the gas source enters the rotating drum 3 and ensure the test effect. It is convenient to use and highly practical.

[0014] It also includes a flared connector 6, a threaded connector 7, and a crimp connector 8, which are respectively connected to the outer ends of three different solenoid valves 5.

[0015] For different connector types (threaded / press-fit / flared, etc.), quick-change connector modules are configured to ensure seamless connection between the connector and the air circuit interface of the testing machine. There is no need to frequently change the overall fixture. Only the connector module needs to be replaced to adapt to various specifications. The connector can be a flared connector 6, a threaded connector 7, or a press-fit connector 8. Simply rotate the hollow cylinder 4 to adjust the orientation of different connectors for clamping bellows specimens of different specifications.

[0016] It also includes a drive adjustment structure 9, which is matched with the rotating drum 3; The drive adjustment structure 9 includes a first gear 91, which is fixedly mounted on the outer wall of the rotating cylinder 3. The first gear 91 is located on the upper side of the partition 11 and has a gap between it and the partition 11. A rotating shaft 93 is rotatably mounted on one side of the surface of the partition 11. A second gear 92 is fixedly mounted on the outer wall of the rotating shaft 93. The second gear 92 is located on the upper side of the partition 11 and has a gap between it and the partition 11. The first gear 91 and the second gear 92 mesh with each other. A servo motor 94 is connected to the upper end of the rotating shaft 93. The servo motor 94 is fixedly connected to the surface of the base 1. The motor shaft of the servo motor 94 passes through the base 1 and is fixedly connected to the rotating shaft 93.

[0017] The servo motor 94 is programmed to drive the rotating shaft 93 to rotate. The rotating shaft 93 drives the first gear 91 to rotate through the second gear 92. At this time, the first gear 91 will drive the rotating drum 3 to rotate, saving the time of manual adjustment of the hollow drum 3 and effectively replacing manual labor.

[0018] A piston 12 is inserted into the inner wall of the solenoid valve 5, and the piston 12 is inserted into the solenoid valve 5 when it is not in use.

[0019] Piston 12 can serve as a dust preventer.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas bellow tube gas tightness tester characterized by: The base (1) includes a bearing (2) fixedly mounted on its surface. A rotating cylinder (3) is fixedly mounted on the inner ring surface of the bearing (2). The rotating cylinder (3) extends into the inner cavity of the base (1). A partition (11) is fixedly mounted on the inner wall of the base (1). The rotating cylinder (3) is rotatably connected to the inner wall of the partition (11). A vent pipe (10) is fixedly connected to the side wall of the base (1). The vent pipe (10) is located below the partition (11). A hollow cylinder (4) is fixedly connected to the upper end of the outer wall of the rotating cylinder (3). Four solenoid valves (5) are evenly fixedly connected around the hollow cylinder (4).

2. The gas bellow airtightness tester according to claim 1, characterized in that: It also includes a flared connector (6), a threaded connector (7), and a crimp connector (8), which are respectively connected to the outer ends of three different solenoid valves (5).

3. The gas bellows airtightness testing machine according to claim 1, characterized in that: It also includes a drive adjustment structure (9) that is matched with the rotating drum (3); The drive adjustment structure (9) includes a first gear (91), which is fixedly mounted on the outer wall of the rotating cylinder (3). The first gear (91) is located on the upper side of the partition (11) and there is a gap between it and the partition (11). A rotating shaft (93) is rotatably mounted on one side of the surface of the partition (11). A second gear (92) is fixedly mounted on the outer wall of the rotating shaft (93). The second gear (92) is located on the upper side of the partition (11) and there is a gap between it and the partition (11). The first gear (91) and the second gear (92) mesh with each other. A servo motor (94) is connected to the upper end of the rotating shaft (93). The servo motor (94) is fixedly connected to the surface of the base (1). The motor shaft of the servo motor (94) passes through the base (1) and is fixedly connected to the rotating shaft (93).

4. The gas bellow airtightness tester according to claim 1, characterized in that: A piston (12) is inserted into the inner wall of the solenoid valve (5), and the piston (12) is inserted into the solenoid valve (5) when it is not in use.

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