Non-welding pipeline for hydraulic oil source

Abstract

The utility model provides a non-welding pipeline for a hydraulic oil source, which relates to the technical field of non-welding pipelines and comprises two high-pressure flange cover plates, a precision cold-drawn pipe is arranged between the two high-pressure flange cover plates, and two ends of the precision cold-drawn pipe are respectively in threaded connection with a left-hand internal thread high-pressure flange and a right-hand internal thread high-pressure flange; and the positioning assemblies are arranged on the left-handed internal thread high-pressure flange and the right-handed internal thread high-pressure flange, and each positioning assembly comprises a positioning block, an ejection spring and a clamping hole. According to the non-welding pipeline, the construction technology of the non-welding pipeline is simple, the selectable pipeline specifications and connection types are multiple, meanwhile, it is guaranteed that the sealing performance of the connecting position is high, repeated assembly and disassembly can be achieved, structural parts are simple, the application range is wide, and the non-welding pipeline is suitable for construction in multiple occasions; the device can assist the connection and positioning among the precise cold-drawn pipe, the left-hand internal thread high-pressure flange and the right-hand internal thread high-pressure flange, and prevent the precise cold-drawn pipe from retreating.

Description

Technical Field

[0001] The utility model relates to the technical field of non-welded pipelines, in particular to a non-welded pipeline for a hydraulic oil source. Background Art

[0002] With the development of society, hydraulic pipelines are widely used in many industries that require a hydraulic oil source, such as lamps, kitchenware, automobiles, fans, packaging, hardware, chemical industry, and construction. At present, most of the hydraulic pipelines on the market use the welding method, which has a complex structure, low construction efficiency, welds that cannot withstand high-pressure impact, are prone to leakage, and are expensive. However, so far, there is no pipeline technology for hydraulic pipelines that can completely solve the above problems. This is the future development direction of non-welded hydraulic pipeline technology, and its development trend can be summarized as high pressure, large flow, professional, low cost, simple, high reliability, high repeatability, and good cost controllability. Therefore, there is an urgent need in the market for a new energy-saving, material-saving, and efficient non-welded pipeline technology. Now, a non-welded pipeline technology is designed and applied to a hydraulic oil source to simplify the construction difficulty, make the hydraulic oil source pipeline more reliable and efficient, and save costs. Content of the Utility Model

[0003] The purpose of the utility model is to solve the deficiencies in the background art and provide a non-welded pipeline for a hydraulic oil source. The construction technology of the non-welded pipeline is simple, there are many optional pipeline specifications and connection types, and at the same time, the sealing performance at the connection is high, it can be disassembled and assembled repeatedly, the structural parts are simple, the application range is wide, and it is suitable for construction in many occasions. Through the setting of the positioning component, it can assist in the connection positioning between the precision cold-drawn pipe, the left-handed internal thread high-pressure flange, and the right-handed internal thread high-pressure flange, and prevent the precision cold-drawn pipe from retreating.

[0004] To achieve the above purpose, the utility model provides the following technical solution. A non-welded pipeline for a hydraulic oil source includes:

[0005] Two high-pressure flange covers, with a precision cold-drawn pipe arranged between the two high-pressure flange covers. The two ends of the precision cold-drawn pipe are respectively threadedly connected with a left-handed internal thread high-pressure flange and a right-handed internal thread high-pressure flange;

[0006] A positioning component arranged on the left-handed internal thread high-pressure flange and the right-handed internal thread high-pressure flange, and the positioning component includes: a positioning block, a jacking spring, and a clamping hole.

[0007] Furthermore, through holes are opened at the centers of the two high-pressure flange covers, and a plurality of fixing holes are arranged on the surfaces of the high-pressure flange covers in an annular array distribution. A plurality of connection holes are opened on both the left-handed internal thread high-pressure flange and the right-handed internal thread high-pressure flange, and the positions of the plurality of connection holes correspond to the fixing holes.

[0008] Furthermore, a plurality of tooling holes are provided on the outer sides of the left-handed internal-thread high-pressure flange and the right-handed internal-thread high-pressure flange, and the plurality of tooling holes are evenly distributed in a circular array. The size of the tooling holes is M12.

[0009] Furthermore, threads are provided on the outer surfaces of both ends of the precision cold-drawn tube. Two sealing grooves are provided inside both the left-handed internal-thread high-pressure flange and the right-handed internal-thread high-pressure flange. An inner-diameter static-sealing O-ring is provided inside the sealing grooves.

[0010] Furthermore, an annular groove is provided on one side of both the left-handed internal-thread high-pressure flange and the right-handed internal-thread high-pressure flange. A flat-sealing O-ring is provided inside the annular groove.

[0011] Furthermore, a limiting groove is provided on the inner walls of both the left-handed internal-thread high-pressure flange and the right-handed internal-thread high-pressure flange.

[0012] Furthermore, a plurality of slotted holes are provided on both the left-handed internal-thread high-pressure flange and the right-handed internal-thread high-pressure flange. A positioning block is provided inside the slotted holes. A top spring is connected between the positioning block and the slotted holes. One end of the positioning block is inclined. A plurality of clamping holes are provided on the outer surface of the precision cold-drawn tube. A moving block is connected to one side of the positioning block.

[0013] The advantages of the present utility model are as follows: The construction technology of the non-welded pipeline is simple. There are many optional pipeline specifications and connection types. At the same time, the sealing performance at the connection is high. It can be disassembled and assembled repeatedly. The structural parts are simple. The application range is wide and it is suitable for construction in many occasions. Secondly, through the setting of the positioning assembly, it can assist in the connection positioning between the precision cold-drawn tube, the left-handed internal-thread high-pressure flange and the right-handed internal-thread high-pressure flange, and prevent the precision cold-drawn tube from retracting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 is a cross-sectional view of the overall structure of the present utility model.

[0016] Figure 3 is a side cross-sectional view of the left-handed internal-thread high-pressure flange of the present utility model.

[0017] Figure 4 is a schematic diagram of the structure of the left-handed internal-thread high-pressure flange of the present utility model.

[0018] Figure 5 is a schematic diagram of the structure of the connection hole of the present utility model.

[0019] Figure 6 is of the present utility model Figure 2 enlarged view of part A in.

[0020] Figure 7 For the present utility model Figure 2 Enlarged view at position B in

[0021] Figures 1-7 In the figure: 1. High-pressure flange cover plate; 101. Opening; 102. Fixing hole; 103. Connecting hole; 2. Left-handed internal thread high-pressure flange; 3. Precision cold-drawn tube; 301. Clamping hole; 4. Flat-sealing O-ring; 401. Annular groove; 5. Inner-diameter static-sealing O-ring; 501. Sealing groove; 6. Limiting groove; 7. Right-handed internal thread high-pressure flange; 8. Groove; 801. Positioning block; 802. Ejecting spring; 803. Moving block; 9. Tooling hole. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0023] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0024] The embodiments of the present application provide a non-welded pipeline for a hydraulic oil source. The following provides a detailed description of the non-welded pipeline for the hydraulic oil source. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments.

[0025] The present application will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Embodiment 1

[0026] Please refer to Figures 1-7In this case, a non-welded pipe for a hydraulic oil source provided by this embodiment includes: two high-pressure flange covers 1. A precision cold-drawn pipe 3 is provided between the two high-pressure flange covers 1. The two ends of the precision cold-drawn pipe 3 are respectively threadedly connected with a left-handed internal-thread high-pressure flange 2 and a right-handed internal-thread high-pressure flange 7. A positioning assembly is provided on the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7. The positioning assembly includes: a positioning block 801, a jacking spring 802, and a card hole 301.

[0027] Among them, the construction technology of the non-welded pipe is simple. There are many optional pipe specifications and connection types. At the same time, the sealing performance at the connection is high, it can be disassembled and assembled repeatedly, the structural parts are simple, and the application range is wide, which is suitable for construction in many occasions. Secondly, through the setting of the positioning assembly, it can assist in the connection positioning between the precision cold-drawn pipe 3, the left-handed internal-thread high-pressure flange 2, and the right-handed internal-thread high-pressure flange 7, and prevent the precision cold-drawn pipe 3 from retracting. Embodiment 2

[0028] Openings 101 are provided at the axles of the two high-pressure flange covers 1. A plurality of fixing holes 102 are provided on the surfaces of the high-pressure flange covers 1 and are distributed in an annular array. A plurality of connection holes 103 are provided on both the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7, and the positions of the plurality of connection holes 103 correspond to those of the fixing holes 102. A plurality of tooling holes 9 are provided on the outer sides of both the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7, and the plurality of tooling holes 9 are evenly distributed in an annular array. The size of the tooling holes 9 is M12.

[0029] During installation, screws are passed through the connection holes 103 and the fixing holes 102, so that the high-pressure flange covers 1 are respectively installed on the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7. Through the setting of the openings 101, a channel for the hydraulic oil to enter the precision cold-drawn pipe 3 can be provided. Through the setting of the plurality of tooling holes 9 with a size of M12, subsequent construction of the pipe can be facilitated. Embodiment 3

[0030] On the basis of Embodiment 1, threads are provided on the outer surfaces of both ends of the precision cold-drawn pipe 3. Two sealing grooves 501 are respectively provided inside the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7. An inner-diameter static-sealing O-ring 5 is provided inside the sealing grooves 501. An annular groove 401 is provided on one side of both the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7. A flat-sealing O-ring 4 is provided inside the annular groove 401. Limiting grooves 6 are provided on the inner walls of the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7.

[0031] During installation, the two ends of the precision cold-drawn tube 3 are respectively threadedly connected to the inside of the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7. Since the thread directions inside the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7 are opposite, the precision cold-drawn tube 3 becomes tighter and tighter during the process of thread engagement, improving the pipeline sealing performance. At the same time, the threaded connection method enables the precision cold-drawn tube 3 to use pipelines with different sizes and different wall thicknesses, being suitable for more types of hydraulic oil source equipment and more large-flow diameter hydraulic oil sources. And there are limit grooves 6 provided on the inner walls of the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7, which can prevent the situation of over-tightening the pipeline threads, and the construction is simple;

[0032] After the threaded connection is completed, the inner diameter static seal O-ring 5 can seal the gap between the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7 and the precision cold-drawn tube 3. Through the setting of the flat seal O-ring 4, the gap between the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7 and the high-pressure flange cover plate 1 can be sealed, ensuring the pipeline sealing performance. Example 4

[0033] On the basis of Example 1, a plurality of slots 8 are provided on both the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7. A positioning block 801 is arranged inside the slot 8. A ejector spring 802 is connected between the positioning block 801 and the slot 8. One end of the positioning block 801 is inclined. A plurality of locking holes 301 are provided on the outer surface of the precision cold-drawn tube 3. A moving block 803 is connected to one side of the positioning block 801.

[0034] When the precision cold-drawn tube 3 is threadedly connected, one end of the precision cold-drawn tube 3 is aligned with the internal thread of the left-handed internal-thread high-pressure flange 2 or the right-handed internal-thread high-pressure flange 7 and approaches the left-handed internal-thread high-pressure flange 2 or the right-handed internal-thread high-pressure flange 7. At this time, one end of the precision cold-drawn tube 3 contacts the inclined surface of the positioning block 801. Through the arrangement of a plurality of positioning blocks 801, the precision cold-drawn tube 3 can be guided, enabling the precision cold-drawn tube 3 to perform threaded connection with the internal thread. And the positioning block 801 is squeezed into the slot 8 by the precision cold-drawn tube 3. After the precision cold-drawn tube 3 is completely threadedly connected, at this time, the positions of the positioning block 801 and the locking hole 301 correspond. At this time, the positioning block 801 rebounds under the elastic force of the ejector spring 802, making the positioning block 801 inserted into the locking hole 301 to block the retraction path of the precision cold-drawn tube 3, further ensuring the stability of the connection between the precision cold-drawn tube 3 and the left-handed internal-thread high-pressure flange 2 and the right-handed internal-thread high-pressure flange 7. When disassembly is required, the positioning block 801 can be pulled to move through the moving block 803 to separate it from the locking hole 301.

[0035] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0036] The above has introduced in detail a non-welded pipeline for a hydraulic oil source provided by the embodiments of the present application. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A non-welded pipe for a hydraulic oil source, characterized in that, Including: Two high-pressure flange covers (1), a precision cold-drawn tube (3) is arranged between the two high-pressure flange covers (1), and the two ends of the precision cold-drawn tube (3) are respectively threadedly connected with a left-handed internal thread high-pressure flange (2) and a right-handed internal thread high-pressure flange (7); A positioning component arranged on the left-handed internal thread high-pressure flange (2) and the right-handed internal thread high-pressure flange (7), the positioning component includes: a positioning block (801), a jacking spring (802) and a card hole (301).

2. The non-welded pipe for a hydraulic oil source according to claim 1, characterized in that, Openings (101) are provided at the axles of the two high-pressure flange covers (1), a plurality of fixing holes (102) are arranged on the surfaces of the high-pressure flange covers (1) in an annular array distribution, a plurality of connecting holes (103) are arranged on both the left-handed internal thread high-pressure flange (2) and the right-handed internal thread high-pressure flange (7), and the positions of the plurality of connecting holes (103) correspond to those of the fixing holes (102).

3. The non-welded pipe for a hydraulic oil source according to claim 1, wherein A plurality of tooling holes (9) are arranged on the outer sides of both the left-handed internal thread high-pressure flange (2) and the right-handed internal thread high-pressure flange (7), and the plurality of tooling holes (9) are evenly distributed in an annular array, and the size of the tooling holes (9) is M12.

4. The non-welded pipe for a hydraulic oil source according to claim 1, characterized in that Threads are provided on the outer surfaces of both ends of the precision cold-drawn tube (3), two sealing grooves (501) are respectively arranged inside the left-handed internal thread high-pressure flange (2) and the right-handed internal thread high-pressure flange (7), and an inner diameter static seal O-ring (5) is arranged inside the sealing grooves (501).

5. The non-welded pipe for a hydraulic oil source according to claim 1, wherein Annular grooves (401) are respectively arranged on one side of the left-handed internal thread high-pressure flange (2) and the right-handed internal thread high-pressure flange (7), and a flat seal O-ring (4) is arranged inside the annular grooves (401).

6. The non-welded pipe for a hydraulic oil source according to claim 1, wherein, Limit grooves (6) are arranged on the inner walls of the left-handed internal thread high-pressure flange (2) and the right-handed internal thread high-pressure flange (7).

7. The non-welded pipe for a hydraulic oil source according to claim 1, characterized in that, A plurality of slots (8) are arranged on both the left-handed internal thread high-pressure flange (2) and the right-handed internal thread high-pressure flange (7), positioning blocks (801) are arranged inside the slots (8), a jacking spring (802) is connected between the positioning blocks (801) and the slots (8), one end of the positioning block (801) is inclined, a plurality of card holes (301) are arranged on the outer surface of the precision cold-drawn tube (3), and a moving block (803) is connected to one side of the positioning block (801).

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