High-pressure isolation corrugated pipe

Abstract

The utility model discloses a high pressure isolation corrugated pipe, relates to corrugated pipe technical field, including outer pipe body and buffer subassembly, the end portion of outer pipe body is connected with connecting pipe orifice, the buffer subassembly that is used for external force buffering and prevents breakage leakage is provided in the outer pipe body, and the buffer subassembly includes inner pipe body, surface groove, buffer chamber and pad bead, a surface groove is formed in the surface of the inner pipe body, a buffering cavity is formed in the surface groove, and cushion beads are installed in the buffering cavity. According to the high-pressure isolation corrugated pipe, the outer pipe body directly plays a role in protection outside the inner pipe body, so that the pipe body is of a double-layer structure, the situation that the pipe body is damaged and cannot be used due to single-layer damage is avoided, the buffer cavity is filled with gas so that the buffer cavity plays a role in buffering between the outer pipe body and the inner pipe body, and the external force buffer effect is further improved; whether the outer tube body is damaged or not can be detected according to the air pressure condition during inflation, and the bead pad provides certain internal supporting force for the outer tube body.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows, in particular to a high-pressure isolation bellows. Background Art

[0002] Bellows are a new type of component that has gained popularity both domestically and internationally in recent years. They are primarily composed of thin, hollow diaphragms formed by stamping and precision-welded to create a highly flexible and retractable metal tube. They are commonly used as sensitive components, sealing elements, isolating media, pipe connections, and temperature compensators. In addition to their advantages of pressure resistance, temperature resistance, corrosion resistance, and excellent sealing properties, bellows also boast a high degree of deformation and a long service life. Generally speaking, bellows are a highly flexible vacuum sealing component used in various industries. High-voltage insulating bushings are the primary insulating component of high-voltage switchgear, serving as the primary insulating element for the transition between high-voltage conductors and high-voltage switchgear. The insulation quality of these bushings directly impacts the overall insulation performance, safety, and reliability of the switchgear.

[0003] For example, the utility model with application number CN202320173449.2 discloses a high-pressure insulating bellows, which uses multiple sets of screws to press a flexible fixing plate onto the connection surface to ensure internal isolation. This allows the high-pressure insulating bellows to have strong flexibility while isolating the interior at the connection port to further enhance the isolation, making the high-pressure insulating bellows resistant to high pressure, with strong isolation performance and high practicality. However, the existing high-pressure insulating bellows are intolerant to external forces during use and are easily damaged by external forces, resulting in damage to the pipe wall, thereby affecting the service life of the pipeline.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a high-pressure isolation bellows is provided. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-pressure insulating bellows to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-pressure insulating bellows, comprising an outer tube body and a buffer assembly, the end of the outer tube body being connected to a connecting pipe mouth, the buffer assembly for buffering external forces to prevent damage and leakage being arranged inside the outer tube body, and the buffer assembly comprising an inner tube body, a surface groove, a buffer cavity and cushion beads, a surface groove being provided on the surface of the inner tube body, and a buffer cavity being provided inside the surface groove, cushion beads being installed inside the buffer cavity, and the cushion beads being arranged in six rows in a ring distribution about the center point of the inner tube body.

[0007] Furthermore, an outer sheath is provided on the outside of the connecting pipe mouth, and two outer sheaths are symmetrically provided about the central axis of the outer pipe body.

[0008] Further, an auxiliary component for increasing the sealing degree is provided on the inner wall of the connecting pipe mouth, and the number of the auxiliary components is set to two groups.

[0009] Further, the auxiliary component includes a sealing gasket and a threaded layer, and the threaded layer is provided on the inner wall of the sealing gasket.

[0010] Further, a fastening ring is provided on the outside of the outer sheath, and a fixing bolt is provided at the upper end of the fastening ring.

[0011] Further, a reinforcing rod is provided inside the fastening ring, and an adjusting groove is opened at the upper end of the reinforcing rod.

[0012] Further, the shape of the reinforcing rod is U-shaped, and the reinforcing rod and the adjusting groove are of an integral structure.

[0013] Further, an adjusting bolt is provided at the end of the reinforcing rod, and an adjusting rod is provided outside the adjusting bolt.

[0014] The utility model provides a high-pressure isolation bellows, which has the following beneficial effects:

[0015] 1. The utility model directly plays a protective role through the outer pipe body outside the inner pipe body, so that the pipe body has a double-layer structure, avoiding the damage of the pipe body caused by the damage of a single layer and making it unable to be used. The gas is filled in the buffer cavity to play a buffering role between the outer pipe body and the inner pipe body, further increasing the external force buffering effect. The damage of the outer pipe body can also be detected by the air pressure during inflation, and the spacer beads provide a certain internal supporting force for the outer pipe body.

[0016] 2. The utility model plays an external covering role through the outer sheath when connecting the connecting pipe mouth. The sealing gasket plays a role of threaded connection for the assembled section of the connecting pipe mouth through the threaded layer on the inner side. The sealing gasket increases the sealing degree of the pipeline connection. The fastening ring tightens to play a fastening role for the outer sheath, increasing the firmness of the pipeline connection. The reinforcing rod and the adjusting rod are used for the external support of the pipeline. The included angle between the reinforcing rod and the adjusting rod can be adjusted through the adjusting bolt, so that the shape of the pipe body can be shaped according to requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of a high-pressure isolation bellows of the utility model;

[0018] Figure 2 is a schematic diagram of the buffer component structure of a high-pressure isolation bellows of the utility model;

[0019] Figure 3 is a schematic diagram of the auxiliary component structure of a high-pressure isolation bellows of the utility model.

[0020] In the figure: 1. Outer tube body; 2. Connecting pipe mouth; 3. Buffer component; 301. Inner tube body; 302. Surface groove; 303. Buffer cavity; 304. Cushion bead; 4. Outer sheath; 5. Auxiliary component; 501. Sealing gasket; 502. Thread layer; 6. Tightening ring; 7. Fixed bolt; 8. Reinforcement rod; 9. Adjustment groove; 10. Adjustment bolt; 11. Adjustment rod. Specific implementation mode

[0021] The following further describes the implementation mode of the present utility model in detail in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] As Figure 1 shown, a high-pressure isolation bellows includes an outer tube body 1 and a buffer component 3. A connecting pipe mouth 2 is connected to the end of the outer tube body 1. The outer tube body 1 directly plays a protective role outside the inner tube body 301, making the tube body have a double-layer structure, avoiding the damage of the single layer resulting in the unusability of the tube body. An outer sheath 4 is arranged outside the connecting pipe mouth 2. The outer sheath 4 plays a role of external covering when the connecting pipe mouth 2 is connected. And two outer sheaths 4 are symmetrically arranged about the central axis of the outer tube body 1. A tightening ring 6 is arranged outside the outer sheath 4. The tightening ring 6 tightens to play a fastening role on the outer sheath 4, increasing the firmness of the pipeline connection. And a fixed bolt 7 is arranged at the upper end of the tightening ring 6. A reinforcement rod 8 is arranged inside the tightening ring 6. The reinforcement rod 8 and the adjustment rod 11 are used for the external support of the pipeline. And an adjustment groove 9 is opened at the upper end of the reinforcement rod 8. The shape of the reinforcement rod 8 is a U-shaped, and the reinforcement rod 8 and the adjustment groove 9 are an integrated structure. An adjustment bolt 10 is arranged at the end of the reinforcement rod 8. The included angle between the reinforcement rod 8 and the adjustment rod 11 can be adjusted through the adjustment bolt 10, so that the shape of the tube body can be shaped according to requirements. And an adjustment rod 11 is arranged outside the adjustment bolt 10.

[0023] As Figure 2 shown, the buffer component 3 for buffering external force to prevent breakage and leakage is arranged inside the outer tube body 1. And the buffer component 3 includes an inner tube body 301, a surface groove 302, a buffer cavity 303 and a cushion bead 304. A surface groove 302 is opened on the surface of the inner tube body 301. And a buffer cavity 303 is arranged inside the surface groove 302. Gas is filled inside the buffer cavity 303 to play a buffering role between the outer tube body 1 and the inner tube body 301, further increasing the external force buffering effect. And whether the outer tube body 1 is damaged can also be detected through the air pressure situation during inflation. A cushion bead 304 is installed inside the buffer cavity 303. Six columns of cushion beads 304 are annularly distributed about the center point of the inner tube body 301. The cushion beads 304 provide a certain internal support force for the outer tube body 1.

[0024] As Figure 3As shown, the inner wall of the connecting pipe mouth 2 is provided with an auxiliary component 5 for increasing the sealing degree, and the number of the auxiliary components 5 is set in two groups, the auxiliary component 5 includes a sealing gasket 501 and a threaded layer 502, and the inner wall of the sealing gasket 501 is provided with a threaded layer 502. The sealing gasket 501 plays a role of threaded connection for the assembly section of the connecting pipe mouth 2 through the inner threaded layer 502, and the sealing gasket 501 increases the sealing degree of the pipeline connection.

[0025] In summary, the high-voltage isolation bellows is first Figure 1-Figure 3 The structure shown in the figure is used for connecting the corrugated pipe through the connecting pipe mouth 2. During assembly, the connecting pipe mouth 2 is rotated and installed on the externally threaded pipe, so that the outer sheath 4 plays the role of an external cover when the connecting pipe mouth 2 is connected. At this time, the sealing gasket 501 plays the role of threaded connection to the assembly section of the connecting pipe mouth 2 through the inner threaded layer 502, thereby increasing the sealing degree of the pipeline connection. After assembly, the fastening ring 6 is used to further tighten the outer sheath 4 to increase the firmness of the pipeline connection. During use, the outer tube body 1 directly plays a protective role on the outside of the inner tube body 301, so that the tube body has a double-layer structure, avoiding damage to a single layer causing the tube body to be damaged and unusable. Gas is pre-filled into the buffer chamber 303 so that it plays a buffering role between the outer tube body 1 and the inner tube body 301, further increasing the external force buffering effect. The air pressure during inflation can also be used to detect whether the outer tube body 1 is damaged, thereby increasing the service life of the tube body.

[0026] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A high-pressure insulating bellows, comprising an outer tube body (1) and a buffer assembly (3), characterized in that: A connection nozzle (2) is connected to the end of the outer pipe body (1). The buffer component (3) for buffering external force to prevent breakage and leakage is arranged inside the outer pipe body (1), and the buffer component (3) includes an inner pipe body (301), a surface groove (302), a buffer cavity (303) and cushion beads (304). A surface groove (302) is formed on the surface of the inner pipe body (301), and a buffer cavity (303) is arranged inside the surface groove (302). Cushion beads (304) are installed inside the buffer cavity (303), and the cushion beads (304) are arranged in six columns in a circular distribution about the center point of the inner pipe body (301).

2. The high-voltage insulating bellows according to claim 1, characterized in that: An outer sheath (4) is arranged outside the connection nozzle (2), and two outer sheaths (4) are symmetrically arranged about the central axis of the outer pipe body (1).

3. The high-voltage insulating bellows according to claim 1, characterized in that: An auxiliary component (5) for increasing the sealing degree is arranged on the inner wall of the connection nozzle (2), and the number of the auxiliary components (5) is two groups.

4. The high-voltage insulating bellows according to claim 3, characterized in that: The auxiliary component (5) includes a sealing gasket (501) and a threaded layer (502), and the threaded layer (502) is arranged on the inner wall of the sealing gasket (501).

5. The high-voltage insulating bellows according to claim 2, characterized in that: A fastening ring (6) is arranged outside the outer sheath (4), and a fixing bolt (7) is arranged at the upper end of the fastening ring (6).

6. The high-voltage insulating bellows according to claim 5, characterized in that: A reinforcing rod (8) is arranged inside the fastening ring (6), and an adjusting groove (9) is formed at the upper end of the reinforcing rod (8).

7. The high-voltage insulating bellows according to claim 6, characterized in that: The shape of the reinforcing rod (8) is a U shape, and the reinforcing rod (8) and the adjusting groove (9) are of an integrated structure.

8. The high-voltage insulating bellows according to claim 6, characterized in that: An adjusting bolt (10) is arranged at the end of the reinforcing rod (8), and an adjusting rod (11) is arranged outside the adjusting bolt (10).

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