Length-adjustable formed pipeline structure

Abstract

The utility model relates to the technical field of forming pipelines, and particularly discloses a length-adjustable forming pipeline structure which comprises a forming steel pipe, a first flange and a second flange, a clamping piece is arranged in the first flange, an inserting hole is formed in the second flange, and the forming steel pipe is provided with a first connector and a second connector, the first connector is formed through extrusion forming, the second connector is formed through finish machining, during assembling, the first connector can be inserted into the first flange and fixed into the first flange through the clamping piece, the second connector is movably inserted into the inserting hole, in other words, one end of the forming steel pipe is fixedly connected, and the other end of the forming steel pipe is movably inserted. The position of the forming steel pipe can be adjusted in the length direction of the forming steel pipe, the machining precision requirement and the assembly process requirement of all parts are lowered, assembly is easier, and meanwhile the risk of oil leakage caused by shifting or tensioning of the forming steel pipe is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of a formed pipeline structure, in particular to a formed pipeline structure with adjustable length. Background Art

[0002] The formed pipeline structure is often used in hydraulic hard pipe connection, which mainly includes extrusion-formed pipeline connection structure and two-end straight-insert pipeline connection structure. The extrusion-formed pipeline connection structure is that the two ends of the steel pipe are formed by extrusion, and the pipeline connection is realized with joints, ferrule joints, ferrule nuts and sealing rings. The two-end straight-insert pipeline connection structure is that the two ends of the steel pipe are finely processed, and the pipeline connection is realized with special sealing rings and flanges. Compared with the traditional welded pipeline structure, the two connection structures are more convenient to assemble and have better sealing and seismic performance.

[0003] However, both ends of the extruded pipe connection structure are fixed by compression fittings, and the two-end straight-insert pipe connection structure also needs to be fixed at both ends, otherwise the middle steel pipe will shake. Therefore, the processing size requirements and assembly process requirements of each part are very high. If the assembly or processing accuracy is not in place, there is a risk of steel pipe stringing or steel pipe tensioning, resulting in oil leakage in the pipeline. Summary of the invention

[0004] The present invention is made in consideration of the above-mentioned problems. The purpose of the utility model is to provide a length-adjustable formed pipeline structure, which can adjust the length of the formed steel pipe within a certain range, reduce the processing accuracy requirements and assembly process requirements for each component, and effectively avoid the risk of oil leakage in the pipeline.

[0005] To achieve the above object, the utility model provides a length-adjustable formed pipeline structure, comprising a formed steel pipe, a first flange and a second flange, wherein a clamping piece is provided in the first flange, and an insertion hole is provided in the second flange, and the formed steel pipe has a first connector and a second connector, wherein the first connector is made by extrusion molding, and the second connector is made by fine machining;

[0006] The first connecting head can be inserted into the first flange and fixed in the first flange through the clamping member, and the second connecting head can be movably inserted in the insertion hole.

[0007] According to the above-mentioned length-adjustable formed pipeline structure, the clamping part includes a ferrule joint and a ferrule nut, the first connecting head can be inserted into the ferrule joint, and the ferrule nut is sleeved on the outer side of the ferrule joint and the first connecting head to fix the first connecting head to the ferrule joint.

[0008] According to the above-mentioned length-adjustable formed pipeline structure, a sealing cone surface is provided on one side of the first connector, and a first sealing ring is also provided in the first flange. The first sealing ring can abut against the sealing cone surface to seal the first connector.

[0009] According to the above-mentioned length-adjustable formed pipeline structure, a second sealing ring is provided in the insertion hole of the second flange, and the second sealing ring can be covered on the outer side of the second connector to seal the second connector.

[0010] According to the above-mentioned length-adjustable formed pipeline structure, a mounting groove is provided on the inner wall of the insertion hole, and the second sealing ring is installed in the mounting groove and protrudes outside the second mounting groove.

[0011] According to the above-mentioned length-adjustable molded pipeline structure, the second sealing ring includes an O-ring and a retaining ring.

[0012] The utility model has the following beneficial effects: one end of the formed steel pipe is made by extrusion molding and is clamped and fixed by a clamping joint and a clamping nut, and the other end is made by fine processing and is movably inserted into the insertion hole of the second flange. One end of the formed steel pipe is fixed and the other end is movable, so that the formed steel pipe can be adjusted along the length direction, the processing accuracy requirements and assembly process requirements of each component can be reduced, and oil leakage caused by stringing or tensioning of the steel pipe can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a cross-sectional view of the overall structure of this embodiment;

[0014] Figure 2 It is a cross-sectional view of the second flange of this embodiment.

[0015] In the figure:

[0016] 1. First flange; 2. Compression fitting; 3. Union nut; 4. First sealing ring; 5. Formed steel pipe; 6. O-ring; 7. Retaining ring; 8. Second flange; 9. Insertion hole; 10. Mounting groove. DETAILED DESCRIPTION

[0017] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0018] like Figure 1-2As shown, a length-adjustable formed pipeline structure includes a formed steel pipe 5, a first flange 1 and a second flange 8, wherein a clamping piece is provided in the first flange 1, and an insertion hole 9 is provided in the second flange 8, and the formed steel pipe 5 has a first connecting head and a second connecting head, wherein the first connecting head is made by extrusion molding, and the second connecting head is made by fine machining. During assembly, the first connecting head can be inserted into the first flange 1 and fixed in the first flange 1 by the clamping piece, and the second connecting head can be movably inserted in the insertion hole 9, that is, one end of the formed steel pipe 5 is fixedly connected, and the other end of the formed steel pipe 5 is movably inserted, so that the position of the formed steel pipe 5 can be adjusted along the length direction of the formed steel pipe 5, thereby reducing the processing accuracy requirements and assembly process requirements of each component, making assembly simpler, and at the same time effectively avoiding the risk of oil leakage due to stringing or tensioning of the formed steel pipe 5.

[0019] In order to achieve a fixed connection to the first connector, the clamping part includes a ferrule joint 2 and a ferrule nut. The first connector can be inserted into the ferrule joint 2, and the ferrule nut is sleeved on the outer sides of the ferrule joint 2 and the first connector to fix the first connector to the ferrule joint 2. At the same time, the ferrule nut cooperates with the ferrule joint 2 to perform a hard seal on the first connector, and a sealing cone surface is provided on one side of the first connector. A first sealing ring 4 is also provided in the first flange 1. The first sealing ring 4 can abut against the sealing cone surface to seal the first connector to form a soft seal. The double seal ensures the sealing performance of the first connector after installation to avoid oil leakage.

[0020] In order to achieve sealing of the second connecting head, a mounting groove 10 is provided in the insertion hole 9 of the second flange 8, and a second sealing ring is provided in the insertion hole 9. The second sealing ring is installed in the mounting groove 10 and protrudes out of the mounting groove 10. After the second connecting head is inserted into the insertion hole 9, the second sealing ring can be covered on the outer side of the second connecting head to seal the second connecting head and ensure its sealing. In this embodiment, the second sealing ring includes an O-ring 6 and a retaining ring 7.

[0021] The technical solution of the utility model is described in detail above in conjunction with the accompanying drawings, and the described embodiments are used to help understand the idea of ​​the utility model. The specific embodiments described herein are merely examples of the spirit of the utility model. A person skilled in the art of the utility model may make various modifications or supplements to the described specific embodiments or replace them in a similar manner, but this will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

[0022] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A length-adjustable formed pipeline structure, characterized in that: It comprises a formed steel pipe, a first flange and a second flange, wherein the first flange is provided with a clamping piece, the second flange is provided with an insertion hole, the formed steel pipe has a first connector and a second connector, the first connector is made by extrusion molding, and the second connector is made by precision machining; The first connecting head can be inserted into the first flange and fixed in the first flange through the clamping member, and the second connecting head can be movably inserted in the insertion hole.

2. A length-adjustable formed pipeline structure according to claim 1, characterized in that: The clamping component includes a ferrule joint and a ferrule nut. The first connector can be inserted into the ferrule joint. The ferrule nut is sleeved on the outer sides of the ferrule joint and the first connector to fix the first connector to the ferrule joint.

3. A length-adjustable formed pipeline structure according to claim 2, characterized in that: A sealing cone surface is provided on one side of the first connector, and a first sealing ring is further provided in the first flange. The first sealing ring can abut against the sealing cone surface to seal the first connector.

4. The length-adjustable formed pipeline structure according to claim 1, characterized in that: A second sealing ring is disposed in the insertion hole of the second flange, and the second sealing ring can be covered on the outer side of the second connector to seal the second connector.

5. A length-adjustable formed pipeline structure according to claim 4, characterized in that: An installation groove is arranged on the inner wall of the insertion hole, and the second sealing ring is installed in the installation groove and protrudes out of the installation groove.

6. A length-adjustable formed pipeline structure according to claim 4 or 5, characterized in that: The second sealing ring includes an O-ring and a retaining ring.

Images