Hydraulic pipeline joint

Abstract

The utility model is suitable for the technical field of hydraulic systems, and provides a hydraulic pipeline joint. Comprising a first to-be-welded pipeline, a second to-be-welded pipeline and two connecting pieces, the to-be-connected end of the first to-be-welded pipeline is fixedly sleeved with a first pipeline flange plate, and the to-be-connected end of the second to-be-welded pipeline is fixedly sleeved with a second pipeline flange plate; the side, away from the first to-be-welded pipeline, of the first pipeline flange plate abuts against the side, away from the second to-be-welded pipeline, of the second pipeline flange plate, the first pipeline flange plate and the second pipeline flange plate are sleeved with the two connecting pieces, and the first end of one connecting piece is fixedly connected to the first end of the other connecting piece. The second end of one connecting piece is fixedly connected to the second end of the other connecting piece, the first pipeline flange plate and the second pipeline flange plate are covered with the two connecting pieces, the two connecting pieces are connected through welding, and the two connecting pieces are also connected with the first to-be-welded pipeline and the second to-be-welded pipeline through welding.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic system technology, specifically a hydraulic pipe joint. Background Technology

[0002] Steel rolling mills or other enterprises with hydraulic systems often consider the ease of cleaning or flushing many rigid pipes when constructing hydraulic systems. As a result, many SAE flange-type pipe fittings are installed at many locations on the pipes. However, the existing connection method will have leakage problems after long-term use. In order to solve this technical problem, a hydraulic pipe fitting is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a hydraulic pipe joint to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A hydraulic pipe joint includes: a first pipe to be welded, a second pipe to be welded, and two connectors. A first pipe flange is fixedly fitted onto the end of the first pipe to be welded to be connected, and a second pipe flange is fixedly fitted onto the end of the second pipe to be welded to be connected. The side of the first pipe flange away from the first pipe to be welded abuts against the side of the second pipe flange away from the second pipe to be welded. The two connectors are fitted onto the first and second pipe flanges, with the first end of one connector fixedly connected to the first end of the other connector, and the second end of one connector fixedly connected to the second end of the other connector. The two connectors enclose the first and second pipe flanges within them. The two connectors are connected by welding, and the two connectors are also connected to the first and second pipes to be welded by welding.

[0006] This solution uses two connectors to cover the first and second pipe flanges, making the connection between the first and second pipes to be welded more secure, reducing leakage, and solving the problem of difficult or impossible welding of existing hydraulic pipe joints. The innovation lies in completely solving the problem of welding slag entering the system oil and forming pollutants, thus creating very favorable conditions for improving enterprise production efficiency.

[0007] As a further embodiment of this utility model, the two connectors are semi-circular in structure.

[0008] As a further improvement of this utility model, both connectors are provided with semi-circular grooves inside for accommodating the first and second pipe flanges.

[0009] As a further improvement of this utility model, a sealing element is provided at the contact surface between the first pipe flange and the second pipe flange.

[0010] As a further embodiment of this utility model: the first pipe flange and the first pipe to be welded are an integral structure; the second pipe flange and the second pipe to be welded are an integral structure.

[0011] As a further improvement of this utility model: a first annular groove is provided on the side of the first pipe flange near the second pipe flange to accommodate the sealing element.

[0012] As a further improvement of this utility model, a second annular groove is also provided on the side of the second pipe flange near the first pipe flange.

[0013] As a further improvement of this utility model, the sealing element is an O-ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by setting two connecting parts to cover the first pipe flange and the second pipe flange, the connection between the first pipe to be welded and the second pipe to be welded is more secure, reducing leakage, and solving the problem of the existing hydraulic pipe joint wrapping welding method. The innovation point is that it completely solves the problem of difficulty or inability to weld; it completely solves the problem of welding slag entering the system oil and forming pollutants, creating very favorable conditions for improving enterprise production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a hydraulic pipe joint according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the internal structure of a hydraulic pipe joint according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the end face structure of a hydraulic pipe joint according to an embodiment of the present invention.

[0018] In the diagram: 1-First pipe to be welded, 2-Second pipe to be welded, 3-First pipe flange, 4-Second pipe flange, 5-Seal, 6-Connector. 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] See Figure 1 , Figure 2 and Figure 3 As shown, Figure 1 This is a schematic diagram of the structure of a hydraulic pipe joint according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the internal structure of a hydraulic pipe joint according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the end face structure of a hydraulic pipe joint according to an embodiment of the present invention. When constructing hydraulic systems, steel rolling enterprises or other enterprises with hydraulic systems consider the need for cleaning or flushing of many rigid pipes and install many SAE flange-type pipe joints at many locations on the pipes. However, the existing connection method will have leakage problems after long-term use. In order to solve this technical problem, a hydraulic pipe joint is proposed.

[0021] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] Example 1

[0023] Please see Figures 1-3 The present invention provides a structural diagram of a hydraulic pipe joint according to Embodiment 1. The hydraulic pipe joint includes: a first pipe to be welded 1, a second pipe to be welded 2, and two connecting pieces 6. The first pipe to be welded 1 is fixedly fitted with a first pipe flange 3 at the end to be connected, and the second pipe to be welded 2 is fixedly fitted with a second pipe flange 4 at the end to be connected. The side of the first pipe flange 3 away from the first pipe to be welded 1 abuts against the side of the second pipe flange 4 away from the second pipe to be welded 2. The two connecting pieces 6 are fitted onto the first pipe flange 3 and the second pipe flange 4, and the first end of one connecting piece 6 is fixedly connected to the first end of the other connecting piece 6, and the second end of one connecting piece 6 is fixedly connected to the second end of the other connecting piece 6. The two connecting pieces 6 cover the first pipe flange 3 and the second pipe flange 4 inside them. The two connecting pieces 6 are connected by welding, and the two connecting pieces 6 are also connected to the first pipe to be welded 1 and the second pipe to be welded 2 by welding.

[0024] This utility model uses two connecting parts 6 to cover the first pipe flange 3 and the second pipe flange 4, making the connection between the first pipe to be welded 1 and the second pipe to be welded 2 more secure, reducing leakage, and solving the problem of the existing hydraulic pipe joint wrapping welding method. The innovation lies in completely solving the problem of difficulty or inability to weld; it also completely solves the problem of welding slag entering the system oil and forming pollutants, creating very favorable conditions for improving enterprise production efficiency.

[0025] In a preferred embodiment of this utility model, the two connectors 6 can be semi-circular structures, and are provided with semi-circular grooves inside for accommodating the first pipe flange 3 and the second pipe flange 4.

[0026] In a preferred embodiment of this utility model, a sealing element 5 is provided at the contact surface between the first pipe flange 3 and the second pipe flange 4, thereby improving the sealing performance between the two pipe flanges. By placing the sealing element 5 between the first pipe flange 3 and the second pipe flange 4, the problem of the sealing ring being burned and causing contaminants is completely solved.

[0027] In a preferred embodiment of this utility model, the first pipe flange 3 and the first pipe to be welded 1 are integrally formed. The second pipe flange 4 and the second pipe to be welded 2 are integrally formed.

[0028] In a preferred embodiment of this utility model, the first pipe flange 3 is provided with a first annular groove on the side near the second pipe flange 4 to accommodate the sealing element 5. This facilitates the positioning of the sealing element 5.

[0029] In a preferred embodiment of this utility model, the second pipe flange 4 also has a second annular groove on the side near the first pipe flange 3, which is also used to accommodate the sealing element 5. This facilitates the limiting of the sealing element 5.

[0030] In a preferred embodiment of this invention, the sealing element 5 can be an O-ring. This configuration is easy to implement.

[0031] In the connection process of this utility model, firstly, the two halves of the connecting piece 6 are wrapped and fixed to the outer circle of the first pipe flange 3 and the second pipe flange 4 with iron wire (note that the joint of the two connecting pieces 6 should be left in an easy welding position). In this way, the two ends of the two connecting pieces 6 are fully welded to the outer circle of the first pipe 1 and the second pipe 2 to be welded, and the joint of the two halves of the welding piece is fully welded. In this way, the original joint is firmly welded.

[0032] The working principle of this utility model is as follows:

[0033] By setting two connecting parts 6 to cover the first pipe flange 3 and the second pipe flange 4, the connection between the first pipe to be welded 1 and the second pipe to be welded 2 is made more secure. The innovation of the existing hydraulic pipe joint wrapping welding method is that it completely solves the problem of difficulty or inability to weld; it completely solves the problem of welding slag entering the system oil and forming pollutants, creating very favorable conditions for improving enterprise production efficiency. By setting the sealing part 5 between the first pipe flange 3 and the second pipe flange 4, the problem of the sealing ring being burned and forming pollutants is completely solved.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A hydraulic pipe joint, characterized in that, include: The first pipe to be welded (1), the second pipe to be welded (2), and two connectors (6) are provided. The first pipe to be welded (1) is fixedly fitted with a first pipe flange (3) at the end to be connected, and the second pipe to be welded (2) is fixedly fitted with a second pipe flange (4) at the end to be connected. The side of the first pipe flange (3) away from the first pipe to be welded (1) is in contact with the side of the second pipe flange (4) away from the second pipe to be welded (2). The two connectors (6) are fitted on the first pipe flange (3) and the second pipe flange (4). The first end of one connector (6) is fixedly connected to the first end of another connector (6), and the second end of one connector (6) is fixedly connected to the second end of another connector (6). The two connectors (6) cover the first pipe flange (3) and the second pipe flange (4) inside. The two connectors (6) are connected by welding, and the two connectors (6) are also connected to the first pipe to be welded (1) and the second pipe to be welded (2) by welding.

2. A hydraulic pipe joint according to claim 1, characterized in that, The two connectors (6) are semi-circular in structure.

3. A hydraulic pipe joint according to claim 2, characterized in that, Both connectors (6) have semi-circular grooves inside for accommodating the first pipe flange (3) and the second pipe flange (4).

4. A hydraulic pipe joint according to claim 1, characterized in that, A sealing element (5) is provided at the contact surface between the first pipe flange (3) and the second pipe flange (4).

5. A hydraulic pipe joint according to claim 1, characterized in that, The first pipe flange (3) and the first pipe to be welded (1) are an integral structure.

6. A hydraulic pipe joint according to claim 5, characterized in that, The second pipe flange (4) and the second pipe to be welded (2) are an integral structure.

7. A hydraulic pipe joint according to claim 4, characterized in that, The first pipe flange (3) has a first annular groove on the side near the second pipe flange (4).

8. A hydraulic pipe joint according to claim 7, characterized in that, The first annular groove is used to accommodate the seal (5).

9. A hydraulic pipe joint according to claim 7, characterized in that, The second pipe flange (4) is also provided with a second annular groove on the side near the first pipe flange (3).

10. A hydraulic pipe joint according to claim 7, characterized in that, The sealing element (5) is an O-ring.

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