A quality detection device for a corrugated pipe compensator

Abstract

This utility model discloses a quality inspection device for bellows compensators, specifically relating to the field of bellows compensator testing technology. It includes a base plate, with a support seat on its surface. A lower pressure plate is mounted on top of the support seat. The upper surface of the support seat has several first sealing structures for sealing the bottoms of several bellows compensators, and the lower surface of the lower pressure plate has several second sealing structures for sealing the tops of several bellows compensators. Connecting ears are fixedly installed on both sides of the outer wall of the lower pressure plate. Electric push rods are mounted on the surface of the base plate and on both sides of the support seat. This utility model facilitates pressure testing of bellows compensators by operators and provides good protection during testing, preventing the bellows compensators from exploding due to excessive test pressure and causing injury to surrounding personnel, thus improving safety.

Description

Technical Field

[0001] This utility model relates to the field of bellows compensator testing technology, and more specifically, to a quality testing device for bellows compensators. Background Technology

[0002] A bellows compensator is a flexible, thin-walled device with transverse corrugations that has expansion and contraction functions. It consists of a metal bellows and other components. During the production process of the bellows compensator, pressure testing can be used to inspect its quality and determine whether its sealing and pressure resistance meet the standards.

[0003] However, current devices lack adequate protective structures when performing pressure tests on bellows compensators, which can easily lead to explosions due to excessive pressure during the test, causing injury to nearby workers and compromising safety. Therefore, this invention proposes a quality testing device for bellows compensators. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a quality inspection device for bellows compensators to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quality inspection device for bellows compensators, comprising a base plate, a support seat provided on the surface of the base plate, a lower pressure plate provided on the top of the support seat, a plurality of first sealing structures for sealing the bottom of a plurality of bellows compensators provided on the upper surface of the support seat, a plurality of second sealing structures for sealing the top of a plurality of bellows compensators provided on the lower surface of the lower pressure plate, connecting ears fixedly installed on both sides of the outer wall of the lower pressure plate, electric push rods provided on both sides of the base plate and located on both sides of the support seat, a test structure for pressure testing of a plurality of bellows compensators provided on the surface of the base plate, and a protective structure provided on the surface of the base plate.

[0006] As can be seen, the structure uses the support base on the base plate to cooperate with the lower pressure plate, and the first and second sealing structures to seal the bottom and top of the compensator respectively. The electric push rods on both sides can adjust the distance between the lower pressure plate and the support base to adapt to compensators of different heights. The test structure uses an air compressor to provide a pressure source to perform pressure testing and monitor pressure and leakage. The protective structure forms a safety protection through a closable protective frame.

[0007] In order to improve the sealing effect and detection accuracy of the bellows compensator during pressure testing, preferably, the first sealing structure includes a first frustum, which is fixedly installed on the upper surface of the support base, and the surface of the first frustum is connected to a first sealing gasket; the second sealing structure includes a second frustum, which is fixedly installed on the lower surface of the lower pressure plate, and the lower surface of the second frustum is connected to a second sealing gasket.

[0008] In order to adjust the distance between the lower pressure plate and the support base by moving the connecting ear and the lower pressure plate up and down through the extension and retraction of the electric push rod, thereby adapting to bellows compensators of different heights and facilitating their installation and sealing operation, preferably, the bottom end of the electric push rod is fixedly installed on the surface of the base plate, and the output end of the electric push rod is fixedly connected to the connecting ear.

[0009] In order to transmit the internal pressure of the bellows compensator to the pressure gauge through the connecting pipe, and to display and monitor the pressure value and leakage during the pressure test in real time, so as to intuitively judge whether its sealing performance and pressure resistance performance meet the standards, preferably, the surface of the lower pressure plate is provided with the same number of connecting pipes as the second truncated cone, the bottom end of the connecting pipe passes through the lower pressure plate and is connected to the second truncated cone, and the top end of the connecting pipe is provided with a pressure gauge.

[0010] To test the pressure resistance and sealing performance of the bellows compensator, preferably, the test structure includes an air compressor, which is installed on the top of the base plate and away from the support. The output end of the air compressor is connected to an air supply pipe, and the outer wall of the air supply pipe is connected to two branch pipes. The surfaces of the two branch pipes are connected to two air inlet pipes. One end of the air inlet pipe passes through the support and is connected to the first truncated cone. A valve is installed on the outside of the air inlet pipe. An exhaust port is provided at one end of the air supply pipe, and a silencer is installed at the exhaust port. A shut-off valve is installed on the outside of the air supply pipe near the exhaust port.

[0011] To provide protective operation during the testing of the bellows compensator, prevent personnel injury due to explosion caused by excessive pressure, and improve operational safety, the protective structure preferably includes a first protective frame and a second protective frame symmetrically mounted on a base plate. The first protective frame is located on one side of the second protective frame. Two rectangular openings are formed on the surface of the base plate. Guide rods are fixedly installed inside each of the two rectangular openings. Two guide blocks are slidably installed on the outside of each of the two guide rods, and the guide blocks are respectively fixed to the bottom side of the first and second protective frames. An embedding groove is formed on one side of the first protective frame, and an embedding strip adapted to the embedding groove structure is provided on one side of the second protective frame. Soft magnetic strips that attract each other are provided on the inner wall of the embedding groove and one end of the embedding strip. Both the first and second protective frames are made of acrylic sheets.

[0012] The technical effects and advantages of this utility model are as follows: 1. By setting up a protective structure, the first and second protective frames, which can slide along the guide rod, enable rapid opening and closing during the pressure test of the bellows compensator. This provides good protection without affecting the test, preventing the bellows compensator from exploding due to excessive test pressure and causing injury to surrounding personnel, thus improving safety. At the same time, the cooperation of the embedded groove and embedded strip, as well as the magnetic attraction of the soft magnetic strip, ensures the stability after closure and prevents accidental sliding and opening. 2. By employing the first sealing structure, the second sealing structure, and the electric push rod, the bellows compensator can be reliably sealed at both ends. Furthermore, the distance between the lower pressure plate and the support seat can be flexibly adjusted to accommodate products of different heights. Simultaneously, by utilizing the test structure and real-time monitoring of the pressure gauge, the compensator's pressure resistance and sealing performance can be tested, improving the testing effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the surface structure of the support base and the lower pressure plate of this utility model.

[0015] Figure 3 This is a three-dimensional schematic diagram of the test structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the connection structure between the first protective frame and the second protective frame of this utility model.

[0017] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0018] The attached figures are labeled as follows: 1. Base plate; 2. Support base; 3. Lower pressure plate; 4. Connecting lug; 5. Electric push rod; 6. First truncated cone; 7. First sealing gasket; 8. Second truncated cone; 9. Second sealing gasket; 10. Connecting pipe; 11. Pressure gauge; 12. Air compressor; 13. Air supply pipe; 14. Branch pipe; 15. Inlet pipe; 16. Valve; 17. Silencer; 18. Shut-off valve; 19. First protective frame; 20. Second protective frame; 21. Rectangular opening; 22. Guide rod; 23. Guide block; 24. Embedded groove; 25. Embedded strip; 26. Soft magnetic strip. Detailed Implementation

[0019] 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.

[0020] As attached Figure 1-5 The device for quality inspection of bellows compensators includes a base plate 1, a support seat 2 on the surface of the base plate 1, a lower pressure plate 3 on the top of the support seat 2, a plurality of first sealing structures for sealing the bottom of a plurality of bellows compensators on the upper surface of the support seat 2, a plurality of second sealing structures for sealing the top of a plurality of bellows compensators on the lower surface of the lower pressure plate 3, connecting lugs 4 fixedly installed on both sides of the outer wall of the lower pressure plate 3, electric push rods 5 on the surface of the base plate 1 and on both sides of the support seat 2, a test structure for pressure testing of a plurality of bellows compensators on the surface of the base plate 1, and a protective structure on the surface of the base plate 1.

[0021] Specifically, in this structure, the bottom of the bellows compensator to be tested is placed on the first sealing structure on the support 2 to seal the bottom of the bellows compensator. At the same time, the electric push rod 5 drives the lower pressure plate 3 to extend downward through the connecting ear 4, so that the second sealing structure at the bottom of the lower pressure plate 3 fits against the top of the bellows compensator to seal the top of the bellows compensator. At this time, the bellows compensator has completed the sealing operation. The closed protective structure before testing is used to protect the bellows compensator during testing, preventing it from exploding due to excessive test pressure and causing injury to surrounding personnel. After the protective structure is closed, the test structure is started, and gas is delivered to the inside of the bellows compensator through the first sealing structure to perform a pressure test on the bellows compensator to detect its pressure resistance and sealing performance.

[0022] In this embodiment, as shown in the appendix Figure 1 , 2 As shown, the first sealing structure includes a first frustum 6, which is fixedly installed on the upper surface of the support base 2, and the surface of the first frustum 6 is connected to a first sealing gasket 7. The second sealing structure includes a second frustum 8, which is fixedly installed on the lower surface of the lower pressure plate 3, and the lower surface of the second frustum 8 is connected to a second sealing gasket 9.

[0023] Specifically, in this structure, the first frustum 6 of the first sealing structure is used to support the bottom of the bellows compensator and to seal the bottom through the first sealing gasket 7, while the second frustum 8 of the second sealing structure is used to support the top of the bellows compensator and to seal the top through the second sealing gasket 9. Thus, the first sealing structure and the second sealing structure are used to perform a sealing operation on the bellows compensator before testing, thereby improving the testing accuracy.

[0024] In this embodiment, as shown in the appendix Figure 1 , 2 As shown, the bottom end of the electric push rod 5 is fixedly installed on the surface of the base plate 1, and the output end of the electric push rod 5 is fixedly connected to the connecting ear 4.

[0025] Specifically, in this structure, the electric push rod 5 drives the connecting ear 4 to move up and down, which allows the lower pressure plate 3 and the support base 2 to be adjusted up and down, changing the distance between the lower pressure plate 3 and the support base 2, making it convenient to test and install corrugated pipe compensators of different heights.

[0026] In this embodiment, as shown in the appendix Figure 1 , 2 As shown, the surface of the lower pressure plate 3 is provided with the same number of connecting pipes 10 as the second truncated cone 8. The bottom end of the connecting pipe 10 passes through the lower pressure plate 3 and is connected to the second truncated cone 8. The top end of the connecting pipe 10 is provided with a pressure gauge 11.

[0027] Specifically, in this structure, the air pressure during the pressure test of the bellows compensator is transmitted to the pressure gauge 11 through the connecting pipe 10, making it easy to view the inflation pressure value and pressure leakage value of the bellows compensator.

[0028] In this embodiment, as shown in the appendix Figure 1 , 3 As shown, the test structure includes an air compressor 12, which is installed on the top of the base plate 1 and on the side away from the support 2. The output end of the air compressor 12 is connected to an air supply pipe 13. The outer wall of the air supply pipe 13 is connected to two branch pipes 14. The surfaces of the two branch pipes 14 are connected to two air inlet pipes 15. One end of the air inlet pipe 15 passes through the support 2 and is connected to the first truncated cone 6. A valve 16 is installed on the outside of the air inlet pipe 15. An exhaust port is provided at one end of the air supply pipe 13. A silencer 17 is installed at the exhaust port. A shut-off valve 18 is installed on the outside of the air supply pipe 13 near the exhaust port.

[0029] Specifically, in this structure, before the pressure test, the shut-off valve 18 at the exhaust port is closed, and the valve 16 on the corresponding intake pipe 15 is opened. The air compressor 12 is started, and the air compressor 12 can provide a pressurized air source, so that the pressurized air source fills the corresponding bellows compensator with air through the air supply pipe 13, the branch pipe 14 and the intake pipe 15, thereby realizing the pressure test operation of the bellows compensator. After the pressure test is completed, the shut-off valve 18 is opened, and the gas is discharged through the exhaust port and through the silencer 17 to reduce the noise generated by the gas discharge.

[0030] In this embodiment, as shown in the appendix Figure 1 , 4 As shown in Figure 5, the protective structure includes a first protective frame 19 and a second protective frame 20 symmetrically installed on the base plate 1. The first protective frame 19 is located on one side of the second protective frame 20. Two rectangular openings 21 are opened on the surface of the base plate 1. Guide rods 22 are fixedly installed inside the two rectangular openings 21. Two guide blocks 23 are slidably installed on the outside of the two guide rods 22. The guide blocks 23 are fixed to the bottom side of the first protective frame 19 and the second protective frame 20 respectively. An embedding groove 24 is opened on one side of the first protective frame 19. An embedding strip 25 adapted to the structure of the embedding groove 24 is provided on one side of the second protective frame 20. Soft magnetic strips 26 that attract each other are provided on the inner wall of the embedding groove 24 and one end of the embedding strip 25. The first protective frame 19 and the second protective frame 20 are both made of acrylic sheet.

[0031] Specifically, in this structure, before testing, to prevent the bellows compensator from exploding due to excessive test pressure and causing injury to surrounding personnel, the operator slides the first protective frame 19 and the second protective frame 20 relative to each other, so that the guide block 23 at the bottom of the first protective frame 19 and the second protective frame 20 slides and guides at the guide rod 22 inside the rectangular opening 21. At this time, the embedding strip 25 at one end of the second protective frame 20 is inserted into the embedding groove 24 opened in the first protective frame 19, and the mutual magnetic attraction of the soft magnetic strip 26 improves the fixing effect of the first protective frame 19 and the second protective frame 20 after closing, preventing unnecessary movement. Similarly, during testing, it is only necessary to open the first protective frame 19 and the second protective frame 20 to expose the entire device. Both the first protective frame 19 and the second protective frame 20 are made of acrylic sheets, which makes it convenient for operators to observe the specific testing situation.

[0032] Working principle of this utility model: This application provides a quality inspection device for bellows compensators. In specific use, firstly, the inspection device is in good condition. Several bellows compensators to be inspected are placed on the first sealing structure of the support base 2 at their bottoms. They are supported by the first frustum 6 and sealed at the bottom using the first sealing gasket 7. Then, the electric push rod 5 is activated, which drives the lower pressure plate 3 to move down through the connecting lug 4. This causes the second frustum 8 and the second sealing gasket 9 of the second sealing structure at the bottom of the lower pressure plate 3 to fit against the top of the bellows compensator, thus completing the top sealing. Next, the operator slides the first protective frame 19 and the second protective frame 20 relative to each other, so that the guide blocks 23 at the bottom of both slide along the guide rod 22 until the embedding strip 25 of the second protective frame 20 is inserted into the embedding groove 24 of the first protective frame 19 and is fixed by magnetic attraction through the soft magnetic strip 26, forming a closed protection to ensure the safety of the testing process and prevent fragments from flying when the corrugated pipe bursts. Afterwards, the air compressor 12 is started. The pressurized air source generated by the air compressor 12 is delivered to the inside of the bellows compensator through the air supply pipe 13, branch pipe 14 and air inlet pipe 15. The internal pressure and leakage are monitored in real time by the pressure gauge 11 at the top of the connecting pipe 10 on the surface of the lower pressure plate 3, and the pressure resistance and sealing performance are tested.

[0033] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies. All the equipment involved is controlled by the control system and will not be described further here.

[0034] 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. A mass detection device for a corrugated pipe compensator, comprising a base plate (1), characterized in that: The base plate (1) is provided with a support seat (2) on its surface. The support seat (2) is provided with a lower pressure plate (3) on its top. The upper surface of the support seat (2) is provided with a number of first sealing structures for sealing the bottom of a number of bellows compensators. The lower surface of the lower pressure plate (3) is provided with a number of second sealing structures for sealing the top of a number of bellows compensators. Connecting ears (4) are fixedly installed on both sides of the outer wall of the lower pressure plate (3). Electric push rods (5) are provided on both sides of the base plate (1) and on both sides of the support seat (2). The surface of the base plate (1) is provided with a test structure for testing a number of bellows compensators. The surface of the base plate (1) is provided with a protective structure.

2. The quality detection device of the bellows compensator according to claim 1, characterized in that: The first sealing structure includes a first frustum (6), which is fixedly installed on the upper surface of the support base (2), and the surface of the first frustum (6) is connected to a first sealing gasket (7). The second sealing structure includes a second frustum (8), which is fixedly installed on the lower surface of the lower pressure plate (3), and the lower surface of the second frustum (8) is connected to a second sealing gasket (9).

3. The quality detection device of the bellows compensator according to claim 1, characterized in that: The bottom end of the electric push rod (5) is fixedly installed on the surface of the base plate (1), and the output end of the electric push rod (5) is fixedly connected to the connecting ear (4).

4. The quality detection device of the bellows compensator according to claim 1, characterized in that: The surface of the lower pressure plate (3) is provided with the same number of connecting pipes (10) as the second truncated cone (8). The bottom end of the connecting pipe (10) passes through the lower pressure plate (3) and is connected to the second truncated cone (8). The top end of the connecting pipe (10) is provided with a pressure gauge (11).

5. The quality detection device of the bellows compensator according to claim 1, characterized in that: The test structure includes an air compressor (12), which is installed on the top of the base plate (1) and on the side away from the support seat (2). The output end of the air compressor (12) is connected to an air supply pipe (13). The outer wall of the air supply pipe (13) is connected to two branch pipes (14). The surfaces of the two branch pipes (14) are connected to two air inlet pipes (15). One end of the air inlet pipe (15) passes through the support seat (2) and is connected to the first truncated cone (6).

6. The quality detection device of the bellows compensator according to claim 5, characterized in that: A valve (16) is installed on the outside of the air intake pipe (15), an exhaust port is provided at one end of the air supply pipe (13), a muffler (17) is installed at the exhaust port, and a shut-off valve (18) is installed on the outside of the air supply pipe (13) near the exhaust port.

7. The quality inspection device for bellows compensators according to claim 1, characterized in that: The protective structure includes a first protective frame (19) and a second protective frame (20) symmetrically installed on the base plate (1). The first protective frame (19) is located on one side of the second protective frame (20). The surface of the base plate (1) has two rectangular openings (21). Guide rods (22) are fixedly installed inside the two rectangular openings (21). Two guide blocks (23) are slidably installed outside the two guide rods (22). The guide blocks (23) are fixed to the bottom side of the first protective frame (19) and the second protective frame (20) respectively. The first protective frame (19) and the second protective frame (20) are both made of acrylic sheet.

8. The quality detection device of the bellows compensator according to claim 7, characterized in that: The first protective frame (19) has an embedded groove (24) on one side, and the second protective frame (20) has an embedded strip (25) on one side that is compatible with the structure of the embedded groove (24). The inner wall of the embedded groove (24) and one end of the embedded strip (25) are provided with mutually magnetic soft magnetic strips (26).

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