Combination device of pipeline flange

Abstract

The utility model discloses a pipeline flange combination device, relates to the field of pipeline flange combination, and aims to solve the problems that a corrugated pipe and a flange of an oil inlet pipe of an existing supercharger need to be fixed before being welded, but the productivity is low, the corrugated pipe and the flange are easy to break down, and the wall thickness of a pipe fitting is only 0.45 mm, so that the corrugated pipe and the flange are easy to damage in the whole using process. According to the technical scheme, the device is characterized by comprising a mounting base, a mounting frame is fixedly connected to the upper end of the mounting base, a hydraulic oil cylinder is fixedly connected to one end of the mounting frame, the movable end of the hydraulic oil cylinder penetrates through one end of the mounting frame and extends to the other end of the mounting frame, and a fixing pipeline is detachably connected to the upper end of the mounting base; a mounting flange is detachably connected to the face, close to the mounting frame, of the fixing pipeline, a conical core rod is fixedly connected to the movable end of the hydraulic oil cylinder, a punch is fixedly connected to the face, close to the fixing pipeline, of the conical core rod, and the effects of stable forming and stable punching are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline flange connection, and specifically relates to a connection device for pipeline flanges. Background Technique

[0002] A flange, also known as a flange boss plate or a flange. A flange is a part used for connecting shafts to each other and is used for connecting between pipe ends; there are also flanges used at the inlets and outlets of equipment for connecting between two pieces of equipment, such as a reducer flange. Any connecting part that uses bolts to connect and enclose around two planes is generally called a "flange". For example, the connection of a ventilation duct, and such parts can be called "flange parts". Flanges are often used to connect to the inlet pipe.

[0003] However, the following defects still exist in this device and the prior art:

[0004] Before the bellows of the existing supercharger inlet pipe is welded to the flange, it needs to be fixed. The original solution was to fix it by argon arc welding, but the production capacity is low and it is easy to penetrate because the wall thickness of the pipe fitting is only 0.45 mm, resulting in easy damage during the overall use process and reducing the overall safety. Content of the Utility Model

[0005] The purpose of the utility model is to provide a connection device for pipeline flanges.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A connection device for pipeline flanges includes a mounting base. A mounting frame is fixedly connected to the upper end of the mounting base. One end of the mounting frame is fixedly connected to a hydraulic cylinder. The movable end of the hydraulic cylinder passes through one end of the mounting frame and extends to the other end of the mounting frame. A fixed pipeline is detachably connected to the upper end of the mounting base. An installation flange is detachably connected to the side of the fixed pipeline close to the mounting frame. The movable end of the hydraulic cylinder is fixedly connected to a tapered mandrel. A punch is fixedly connected to the side of the tapered mandrel close to the fixed pipeline.

[0008] By adopting the above technical solutions, the hydraulic cylinder is used to drive the tapered mandrel and the punch to punch the connection between the installation flange and the fixed pipeline, so as to ensure that a toothed boss is formed at the connection between the installation flange and the fixed pipeline, and the flange and the pipe fitting can be connected together, increasing the connection stability between the installation flange and the fixed pipeline.

[0009] Furthermore, a positioning rod is fixedly connected to the upper end of the mounting base. The positioning rod is located on the left side of the mounting frame. A positioning insertion frame for inserting and positioning the fixed pipeline is fixedly connected to the upper end of the positioning rod.

[0010] By adopting the above technical solution, the fixed pipeline can be fully limited by the positioning plug-in frame at the upper end of the positioning rod, thereby ensuring that the overall installation can be quickly positioned to facilitate fixing the fixed pipeline with the fixing screws, thereby increasing the overall positioning efficiency.

[0011] Furthermore, a fixing screw is threadedly connected inside the positioning plug-in frame, and the fixing screw passes through the outside of the positioning plug-in frame and extends to the inside of the positioning plug-in frame.

[0012] By adopting the above technical solution, the fixed pipeline is fully fixed by extending the fixing screws through the outside of the positioning plug-in frame to the inside of the positioning plug-in frame, ensuring good stability during overall stamping, thereby increasing the overall stamping effect.

[0013] Furthermore, a protective pad for reducing damage to the fixed pipeline is fixedly connected to a side of the fixing screw close to the fixed pipeline, and the protective pad, the fixing screw and the positioning plug-in frame are distributed correspondingly.

[0014] By adopting the above technical solution, the damage of the fixing screws to the fixed pipeline is reduced by the protective pad, and while protecting the whole, the overall stamping effect is increased.

[0015] Furthermore, the front end of the conical mandrel is a truncated cone-shaped structure with a diameter gradually increasing from left to right, and the conical mandrel overlaps with a horizontal center line of the hydraulic cylinder.

[0016] By adopting the above technical solution, the mounting flange and the fixed pipeline connection are expanded by a conical core rod with a truncated cone structure whose front end gradually increases in diameter from left to right, so that the overall expansion is convenient, thereby facilitating the overall processing.

[0017] Furthermore, the punch has tooth-shaped protrusion structures at both ends, and the tooth-shaped protrusions on the outer side of the punch are symmetrically distributed.

[0018] By adopting the above technical solution, the punch with toothed protrusion structures at both ends is squeezed through the copper sleeve to form a toothed boss, so that the flange and the pipe fitting can be connected together and are not easy to rotate.

[0019] In summary, the beneficial technical effects of the utility model are:

[0020] 1. The hydraulic cylinder and punch are used. When the cylinder moves forward, the conical mandrel moves forward so that the punch can be pushed open to hold the inner wall of the pipe fitting, and the copper sleeve is squeezed to form a toothed boss. The flange and the pipe fitting can be connected together and are not easy to rotate, resulting in a stable forming effect.

[0021] 2. Fixed screws and protective pads are adopted. The fixed screws pass through the outside of the positioning socket frame and extend to the inside of the positioning socket frame to fully fix the fixed pipeline, ensuring good stability during the overall stamping, thereby enhancing the overall stamping effect and achieving the effect of stable stamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification, but do not constitute a limitation to the present utility model. In the drawings:

[0023] Figure 1 is a schematic three-dimensional structure diagram of the whole of the present utility model;

[0024] Figure 2 is a schematic internal structure diagram of the present utility model;

[0025] Figure 3 is a schematic connection structure diagram of the fixed pipeline of the present utility model;

[0026] Figure 4 is a schematic three-dimensional structure diagram of the positioning socket frame of the present utility model.

[0027] In the figures, 1. mounting base; 2. mounting frame; 3. hydraulic cylinder; 4. mounting flange; 5. fixed pipeline; 6. tapered mandrel; 7. punch; 11. positioning rod; 12. positioning socket frame; 13. fixed screw; 14. protective pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Please refer to Figure 1 and Figure 2, the utility model provides a technical solution for a coupling device of a pipeline flange, which includes an installation base 1. A mounting frame 2 is fixedly connected to the upper end of the installation base 1. One end of the mounting frame 2 is fixedly connected to a hydraulic cylinder 3. The movable end of the hydraulic cylinder 3 passes through one end of the mounting frame 2 and extends to the other end of the mounting frame 2. A fixed pipeline 5 is detachably connected to the upper end of the installation base 1. An installation flange 4 is detachably connected to the side of the fixed pipeline 5 close to the mounting frame 2. The movable end of the hydraulic cylinder 3 is fixedly connected to a tapered mandrel 6. A punch 7 is fixedly connected to the side of the tapered mandrel 6 close to the fixed pipeline 5. The hydraulic cylinder 3 drives the tapered mandrel 6 and the punch 7 to fully squeeze the connection between the fixed pipeline 5 and the installation flange 4, so as to ensure that a tooth-shaped boss appears at the connection between the fixed pipeline 5 and the installation flange 4, and the flange and the pipe fitting can be connected together and are not easy to rotate.

[0031] Refer to Figure 3 , a positioning rod 11 is fixedly connected to the upper end of the installation base 1. The positioning rod 11 is located on the left side of the mounting frame 2. A positioning insertion frame 12 for inserting and positioning the fixed pipeline 5 is fixedly connected to the upper end of the positioning rod 11. The shape and size of the positioning insertion frame 12 are adapted to those of the fixed pipeline 5, so as to ensure a good positioning effect of the fixed pipeline 5. A fixing screw 13 is threadedly connected inside the positioning insertion frame 12. The fixing screw 13 passes through the outside of the positioning insertion frame 12 and extends to the inside of the positioning insertion frame 12. The fixing screw 13 passes through the positioning insertion frame 12 and fits with the fixed pipeline 5 to fix the fixed pipeline 5, ensuring a good overall stamping forming effect. A protection pad 14 for reducing damage to the fixed pipeline 5 is fixedly connected to the side of the fixing screw 13 close to the fixed pipeline 5. The protection pad 14, the fixing screw 13 and the positioning insertion frame 12 are correspondingly distributed. The protection pad 14 is made of elastic rubber material, so as to ensure a good overall protection effect.

[0032] Refer to Figure 4 , the front end of the tapered mandrel 6 is a frustum-shaped structure with a gradually increasing diameter from left to right. The tapered mandrel 6 overlaps with the horizontal center line of the hydraulic cylinder 3. The tapered mandrel 6 with a frustum-shaped structure with a gradually increasing diameter from left to right can quickly stamp the connection between the fixed pipeline 5 and the installation flange 4. The punch 7 has a tooth-shaped protrusion structure at both ends. The tooth-shaped protrusions on the outside of the punch 7 are symmetrically distributed. The tapered mandrel 6 moves forward to push the punch 7 to expand and hold against the inner wall of the pipe fitting. After being squeezed through the copper sleeve, a tooth-shaped boss is formed, and the flange and the pipe fitting can be connected together and are not easy to rotate.

[0033] Working principle: by plugging and positioning the fixed pipeline 5 with the positioning plug-in frame 12, and docking and positioning the positioned mounting flange 4 and the fixed pipeline 5, the pipe fitting is inserted into a copper sleeve to assemble the flange and the pipe fitting, and then the protective pad 14 is driven to fit with the fixed pipeline 5 through the fixing screw 13. At the same time, the hydraulic cylinder 3 drives the conical core rod 6 and the punch 7 to quickly punch the connection between the fixed pipeline 5 and the mounting flange 4. When the hydraulic cylinder 3 pushes forward, the conical core rod 6 pushes forward so that the punch 7 is stretched and supported against the inner wall of the pipe fitting, and squeezed through the copper sleeve to form a toothed boss. The flange and the pipe fitting can be connected together and are not easy to rotate. Subsequently, they are directly put into the brazing furnace for brazing, and the copper sleeve is directly used as solder to melt and fill the weld.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pipe flange assembly device, comprising a mounting base (1), characterized in that: The upper end of the mounting base (1) is fixedly connected to a mounting frame (2), one end of the mounting frame (2) is fixedly connected to a hydraulic cylinder (3), a movable end of the hydraulic cylinder (3) passes through one end of the mounting frame (2) and extends to the other end of the mounting frame (2), the upper end of the mounting base (1) is detachably connected to a fixed pipeline (5), a side of the fixed pipeline (5) close to the mounting frame (2) is detachably connected to a mounting flange (4), the movable end of the hydraulic cylinder (3) is fixedly connected to a conical core rod (6), and a side of the conical core rod (6) close to the fixed pipeline (5) is fixedly connected to a punch (7).

2. A pipe flange combining device according to claim 1, characterized in that: The upper end of the mounting base (1) is fixedly connected to a positioning rod (11), the positioning rod (11) is located on the left side of the mounting frame (2), and the upper end of the positioning rod (11) is fixedly connected to a positioning plug-in frame (12) for plugging in a positioning and fixing pipeline (5).

3. A pipe flange combining device according to claim 2, characterized in that: The positioning plug-in frame (12) is internally threadedly connected with a fixing screw (13), and the fixing screw (13) passes through the outside of the positioning plug-in frame (12) and extends to the inside of the positioning plug-in frame (12).

4. A pipe flange combining device according to claim 3, characterized in that: A protective pad (14) for reducing damage to the fixed pipeline (5) is fixedly connected to a side of the fixing screw (13) close to the fixed pipeline (5), and the protective pad (14), the fixing screw (13) and the positioning plug-in frame (12) are distributed correspondingly.

5. A pipe flange combining device according to claim 4, characterized in that: The front end of the conical mandrel (6) is a truncated cone-shaped structure with a diameter gradually increasing from left to right, and the conical mandrel (6) overlaps with the horizontal center line of the hydraulic cylinder (3).

6. A pipe flange combining device according to claim 5, characterized in that: The punch (7) has tooth-shaped protrusion structures at both ends, and the tooth-shaped protrusions on the outer side of the punch (7) are symmetrically distributed.

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