Corrugated pipe sealing performance detection device

Abstract

The utility model relates to the technical field of sealing performance detection, and discloses a corrugated pipe sealing performance detection device. The corrugated pipe sealing performance detection device comprises a bottom plate, a movable plate is movably installed on the rear side of the bottom plate, a limiting frame is fixedly installed above the bottom plate and the movable plate, a sealing cover is fixedly installed at the upper end of the limiting frame above the movable plate, and a connecting cover is fixedly installed at the upper end of the limiting frame above the bottom plate. An inner rubber ring and an outer rubber ring are fixedly installed on the right sides of the sealing cover and the connecting cover, a limiting ring is movably installed above the sealing cover and the connecting cover, the barometer can monitor the air pressure in the bent pipe and transmit monitoring data to the controller, and an air pressure threshold value is set through the controller; the controller can compare the monitoring data of the barometer with the preset value, when the monitoring data is close to the preset value, the electromagnetic valve is closed, the air pump is stopped, and the situation that the air pressure in the corrugated pipe is too low, and consequently the corrugated pipe is damaged can be avoided in the mode.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing detection, in particular to a bellows sealing detection device. Background Art

[0002] The application range of corrugated pipes is relatively wide. They can be used to prevent moisture in underground cables or as fluid delivery pipes. If used as fluid delivery pipes, their sealing performance must be ensured. Therefore, the sealing performance test of corrugated pipes is a key process in the production of corrugated pipes.

[0003] The existing referenceable Chinese utility model patent with announcement number: CN210243114U discloses a bellows sealing detection device, which belongs to the field of pipeline manufacturing industry. The utility model includes a detection pool filled with water, a support frame that slides up and down with the detection pool, and a lifting mechanism and an inflation device that push the support frame to slide up and down; the support frame is provided with at least one set of bellows clamping mechanism composed of clamping cylinders, the clamping mechanism cooperates with the lifting mechanism to control the position of the bellows to be detected in the water, and the inflation device inflates the bellows to be detected, and can relatively accurately locate the leakage point while making airtightness judgment, thereby improving the airtightness detection efficiency of the bellows.

[0004] The above-mentioned bellows sealing detection device judges whether the bellows is leaking by pouring gas into the inside of the bellows and observing whether bubbles are generated in the water. Since bubbles will adhere to the surface of the bellows when the bellows is submerged in water, it is necessary to shake the bellows after the bellows are submerged in water to make the bubbles separate from the bellows to avoid misjudgment. At the same time, in the process of inflating the bellows, excessive inflation may cause the internal air pressure of the bellows to be too high, causing the bellows to be damaged, and this method is not suitable for longer bellows. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a bellows sealing detection device, which has the advantages of extending the use length of the bellows and avoiding damage to the bellows, thereby solving the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bellows sealing detection device, comprising: a bottom plate, a movable plate is movably installed on the rear side of the bottom plate, a limiting frame is fixedly installed above the bottom plate and the movable plate, a sealing cover is fixedly installed on the upper end of the limiting frame above the movable plate, a connecting cover is fixedly installed on the upper end of the limiting frame above the bottom plate, an inner rubber ring and an outer rubber ring are fixedly installed on the right side of the sealing cover and the connecting cover, a limiting ring is movably installed above the sealing cover and the connecting cover, a bolt is inserted and installed above the limiting ring, a nut is movably installed at the lower end of the bolt, a controller is fixedly installed above the bottom plate, a support frame is fixedly installed above the bottom plate, an air pump is fixedly installed above the support frame, a solenoid valve is fixedly installed above the air pump, a bend is fixedly installed on the upper end of the solenoid valve, a barometer is inserted and installed on the front side of the bend, and a connecting ring is fixedly installed at the rear end of the bend; the sealing cover can seal one end of the bellows, and the connecting cover can connect the other end of the bellows with the bend.

[0009] As an optimal technical solution of the utility model, the inner wall of the inner rubber ring contacts the sealing cover and the connecting cover, the inner diameter of the outer rubber ring is larger than the inner diameter of the inner rubber ring, and the outer side surface of the outer rubber ring contacts the limiting ring; the inner rubber ring and the outer rubber ring can play a sealing role.

[0010] As a preferred technical solution of the utility model, the limiting ring is installed on the upper and lower sides of the outer rubber ring in a mirror-symmetrical manner with the center of the outer rubber ring as a reference, and the bolts are installed on the left and right sides of the limiting ring in a left-right symmetrical manner with the center of the limiting ring as a reference; the bolts can form a movable connection between the limiting rings.

[0011] As a preferred technical solution of the utility model, the bolt vertically penetrates the limiting rings on the upper and lower sides of the outer rubber ring, and the limiting rings are movably connected by bolts and nuts; the limiting rings can apply pressure to the outer rubber ring through the bolts and nuts.

[0012] As the preferred technical solution of the utility model, the air pump is fixedly connected between the support frame and the base plate, and the upper end of the air pump is connected to the bent pipe through a solenoid valve; the air pump can discharge the air inside the bellows to reduce the air pressure inside the bellows.

[0013] As a preferred technical solution of the utility model, the barometer extends from the front side of the bent pipe through the front side vertical surface of the bent pipe to the inside of the bent pipe, and an electrical connection is formed between the barometer and the controller; the bent pipe can facilitate the connection between the solenoid valve and the connecting cover.

[0014] As a preferred technical solution of the utility model, the rear end of the curved pipe is connected to the connecting cover through a connecting ring, and the controller is electrically connected to the air pump and the solenoid valve; the solenoid valve can control the connection state between the bellows and the air pump.

[0015] Compared with the prior art, the utility model provides a bellows sealing detection device, which has the following beneficial effects:

[0016] 1. The utility model provides a barometer, so that the sealing cover can seal one end of the bellows, the connecting cover can connect the other end of the bellows with the elbow, the upper end of the air pump is connected with the elbow through the solenoid valve, the barometer extends from the front side of the elbow through the front side elevation of the elbow to the inside of the elbow, and an electrical connection is formed between the barometer and the controller. The barometer can monitor the air pressure inside the elbow and transmit the monitoring data to the controller. The controller sets the air pressure threshold, and the controller can compare the monitoring data of the barometer with the preset value. When the monitoring data is close to the preset value, the solenoid valve is closed and the air pump is stopped. This method can avoid the situation where the air pressure inside the bellows is too low and the bellows is damaged.

[0017] 2. The utility model arranges a sealing cover and a connecting cover, and an inner rubber ring and an outer rubber ring are fixedly installed on the right side of the sealing cover and the connecting cover, the inner wall of the inner rubber ring contacts the sealing cover and the connecting cover, the inner diameter of the outer rubber ring is larger than the inner diameter of the inner rubber ring, the outer side surface of the outer rubber ring contacts the limiting ring, and the limiting ring is installed on the upper and lower sides of the outer rubber ring with the center of the outer rubber ring as a reference and in a mirror-symmetrical manner. When installing, the bellows needs to be located in the space between the inner rubber ring and the outer rubber ring, and then the limiting ring applies pressure to the outer rubber ring through bolts and nuts, so that one end of the bellows is closed and the other end is connected to the connecting cover. This method can prevent external air from entering the interior of the bellows, so that the air inside the bellows can be pumped out by an air pump to make the interior of the bellows in a low-pressure state, and the sealing of the bellows can be judged by observing whether the air pressure inside the bellows rises through a barometer to adapt to bellows of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the bottom plate and the limit frame of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the limit ring and the bolts of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the connection cover and the air pump of the utility model;

[0022] Among them: 1. Base plate; 11. Movable plate; 12. Limiting frame; 13. Sealing cover; 14. Connecting cover; 15. Inner rubber ring; 16. Outer rubber ring; 17. Limiting ring; 18. Bolt; 19. Nut; 2. Controller; 21. Support frame; 22. Air pump; 23. Solenoid valve; 24. Bend pipe; 25. Barometer; 26. Connecting ring. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 - Figure 4 In the present embodiment, a bellows sealing detection device comprises: a base plate 1, a movable plate 11 is movably installed on the rear side of the base plate 1, a limiting frame 12 is fixedly installed above the base plate 1 and the movable plate 11, a sealing cover 13 is fixedly installed on the upper end of the limiting frame 12 above the movable plate 11, a connecting cover 14 is fixedly installed on the upper end of the limiting frame 12 above the base plate 1, an inner rubber ring 15 and an outer rubber ring 16 are fixedly installed on the right side of the sealing cover 13 and the connecting cover 14, a limiting ring 17 is movably installed above the sealing cover 13 and the connecting cover 14, a bolt 18 is inserted and installed above the limiting ring 17, and a nut 19 is movably installed at the lower end of the bolt 18.

[0027] The inner wall of the inner rubber ring 15 contacts the sealing cover 13 and the connecting cover 14 . The inner diameter of the outer rubber ring 16 is larger than that of the inner rubber ring 15 . The outer side surface of the outer rubber ring 16 contacts the limiting ring 17 .

[0028] The limiting ring 17 is installed on the upper and lower sides of the outer rubber ring 16 with mirror symmetry based on the center of the outer rubber ring 16, and the bolt 18 is installed on the left and right sides of the limiting ring 17 with left and right symmetry based on the center of the limiting ring 17.

[0029] The bolt 18 vertically penetrates the limiting rings 17 on the upper and lower sides of the outer rubber ring 16 , and the limiting rings 17 are movably connected by the bolt 18 and the nut 19 .

[0030] Specifically, the base plate 1 can support the limit frame 12, the movable plate 11 can limit the position of the sealing cover 13, the limit frame 12 can support the sealing cover 13 and the connecting cover 14, the sealing cover 13 can seal one end of the bellows, the connecting cover 14 can connect the other end of the bellows with the bent pipe 24, the inner rubber ring 15 and the outer rubber ring 16 can play a sealing role, and the limit ring 17 can apply pressure to the outer rubber ring 16 through the bolt 18 and the nut 19.

[0031] A controller 2 is fixedly installed on the top of the base plate 1, a support frame 21 is fixedly installed on the top of the base plate 1, an air pump 22 is fixedly installed on the top of the support frame 21, a solenoid valve 23 is fixedly installed on the top of the air pump 22, a curved pipe 24 is fixedly installed on the upper end of the solenoid valve 23, a barometer 25 is inserted into the front side of the curved pipe 24, and a connecting ring 26 is fixedly installed on the rear end of the curved pipe 24.

[0032] The air pump 22 is fixedly connected to the base plate 1 through the support frame 21 , and the upper end of the air pump 22 is connected to the elbow 24 through the solenoid valve 23 .

[0033] The barometer 25 extends from the front side of the curved pipe 24 through the front side vertical surface of the curved pipe 24 to the inside of the curved pipe 24 , and an electrical connection is formed between the barometer 25 and the controller 2 .

[0034] The rear end of the curved pipe 24 is connected to the connection cover 14 through the connection ring 26 , and the controller 2 is electrically connected to the air pump 22 and the solenoid valve 23 .

[0035] Specifically, the controller 2 can control the start and stop of the air pump 22 and the opening and closing of the solenoid valve 23. The support frame 21 can support the air pump 22. The air pump 22 can discharge the air inside the bellows to reduce the air pressure inside the bellows. The solenoid valve 23 can control the connection state between the bellows and the air pump 22. The bent pipe 24 can facilitate the connection between the solenoid valve 23 and the connecting cover 14. The barometer 25 can detect the air pressure inside the bent pipe 24. The connecting ring 26 can facilitate the fixed connection between the bent pipe 24 and the connecting cover 14.

[0036] When in use, the sealing cover 13 can seal one end of the bellows, and the connecting cover 14 can connect the other end of the bellows to the elbow 24. The upper end of the air pump 22 is connected to the elbow 24 through the solenoid valve 23. The barometer 25 extends from the front side of the elbow 24 through the front side elevation of the elbow 24 to the inside of the elbow 24. The barometer 25 and the controller 2 are electrically connected. The barometer 25 can monitor the air pressure inside the elbow 24 and transmit the monitoring data to the controller 2. The air pressure threshold is set by the controller 2. The controller 2 can compare the monitoring data of the barometer 25 with the preset value. When the monitoring data is close to the preset value, the solenoid valve 23 is closed and the air pump 22 is stopped. This method can avoid the situation where the air pressure inside the bellows is too low and the bellows is damaged. The inner rubber ring 15 and the outer rubber ring 16 are fixedly installed on the right side of the sealing cover 13 and the connecting cover 14. The inner wall of the ring 15 contacts the sealing cover 13 and the connecting cover 14, the inner diameter of the outer rubber ring 16 is larger than the inner diameter of the inner rubber ring 15, the outer side surface of the outer rubber ring 16 contacts the limiting ring 17, and the limiting ring 17 is installed on the upper and lower sides of the outer rubber ring 16 with the center of the outer rubber ring 16 as the reference and mirror-symmetrically. When installing, the bellows needs to be located in the space between the inner rubber ring 15 and the outer rubber ring 16, and then the limiting ring 17 is used to apply pressure to the outer rubber ring 16 through the bolt 18 and the nut 19, so that one end of the bellows is closed and the other end is connected to the connecting cover 14. This method can prevent external air from entering the interior of the bellows, so that the air inside the bellows can be extracted through the air pump 22 to make the inside of the bellows in a low-pressure state, and the air pressure inside the bellows is observed by the barometer 25 to observe whether the air pressure inside the bellows rises to judge the sealing of the bellows to adapt to bellows of different lengths.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bellows sealing detection device, characterized in that: include: A bottom plate (1), a movable plate (11) is movably mounted on the rear side of the bottom plate (1), a limiting frame (12) is fixedly mounted above the bottom plate (1) and the movable plate (11), a sealing cover (13) is fixedly mounted on the upper end of the limiting frame (12) above the movable plate (11), a connecting cover (14) is fixedly mounted on the upper end of the limiting frame (12) above the bottom plate (1), an inner rubber ring (15) and an outer rubber ring (16) are fixedly mounted on the right sides of the sealing cover (13) and the connecting cover (14), a limiting ring (17) is movably mounted above the sealing cover (13) and the connecting cover (14), and the limiting ring (17) A bolt (18) is inserted and installed above the bottom plate (17), and a nut (19) is movably installed at the lower end of the bolt (18); a controller (2) is fixedly installed above the bottom plate (1); a support frame (21) is fixedly installed above the bottom plate (1), an air pump (22) is fixedly installed above the support frame (21), an electromagnetic valve (23) is fixedly installed above the air pump (22), a curved pipe (24) is fixedly installed at the upper end of the electromagnetic valve (23), a barometer (25) is inserted and installed on the front side of the curved pipe (24), and a connecting ring (26) is fixedly installed at the rear end of the curved pipe (24).

2. A bellows sealing detection device according to claim 1, characterized in that: The inner wall of the inner rubber ring (15) contacts the sealing cover (13) and the connecting cover (14); the inner diameter of the outer rubber ring (16) is larger than the inner diameter of the inner rubber ring (15); and the outer side surface of the outer rubber ring (16) contacts the limiting ring (17).

3. A bellows sealing detection device according to claim 1, characterized in that: The limiting ring (17) is installed on the upper and lower sides of the outer rubber ring (16) in a mirror-symmetrical manner with the center of the outer rubber ring (16) as a reference, and the bolt (18) is installed on the left and right sides of the limiting ring (17) in a left-right symmetrical manner with the center of the limiting ring (17) as a reference.

4. A bellows sealing detection device according to claim 1, characterized in that: The bolt (18) vertically penetrates the limiting rings (17) on the upper and lower sides of the outer rubber ring (16), and the limiting rings (17) are movably connected via the bolt (18) and the nut (19).

5. The bellows sealing detection device according to claim 1, characterized in that: The air pump (22) is fixedly connected to the bottom plate (1) via the support frame (21), and the upper end of the air pump (22) is connected to the bent pipe (24) via the electromagnetic valve (23).

6. A bellows sealing detection device according to claim 1, characterized in that: The barometer (25) extends from the front side of the curved pipe (24) through the front side vertical surface of the curved pipe (24) to the inside of the curved pipe (24), and an electrical connection is formed between the barometer (25) and the controller (2).

7. The bellows sealing detection device according to claim 1, characterized in that: The rear end of the curved pipe (24) is connected to the connecting cover (14) via a connecting ring (26), and the controller (2) is electrically connected to the air pump (22) and the solenoid valve (23).

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