Easily-mounted flange plate joint

Abstract

The utility model relates to a flange plate joint easy to install, which comprises a pipeline and a connecting plate arranged at one end of the pipeline, the connecting plate is provided with a plurality of bolt holes distributed along the circumferential direction, the pipeline comprises a main pipe section and a connecting section, one end of the main pipe section is provided with an external thread section, and the other end of the main pipe section is provided with an internal thread section. One end of the connecting section is fixedly connected with the connecting disc, the other end of the connecting section is provided with an internal thread section, the external thread section is in threaded connection with the internal bolt section, and a sealing layer is arranged between the side, away from the connecting section, of an external thread of the external thread section and the side, away from the main pipe section, of an internal thread of the internal thread section. The sealing layer enables the internal thread section and the external thread section to be connected together in a sealed mode. The utility model aims to provide the easy-to-install flange plate joint which is convenient in disassembly and secondary connection, and solves the problem that a plurality of bolts and nuts need to be screwed for disassembly and assembly of an existing flange, so that time is wasted.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connection technical field especially, relates to an easy installation formula flange joint. BACKGROUND

[0002] In the connecting process of metal pipeline, usually connect flange connection. The connecting flange is connected by a plurality of connecting bolts and connecting nuts. When disassembling and connecting again, a plurality of connecting bolts and nuts need to be disassembled, which causes time-consuming in disassembling and connecting again. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing an easy installation formula flange joint convenient in disassembling and connecting again, solves the problem of time-consuming in disassembling and installing the existing flange.

[0004] The following technical problem is solved by the following technical scheme: an easy installation formula flange joint, including pipeline and the connecting disc of setting on the one end of pipeline, be equipped with a plurality of bolt holes along the circumferential distribution on the connecting disc, it is characterized in that, the pipeline includes main pipe section and connecting section, the one end of main pipe section is equipped with outer thread section, the one end of connecting section is fixed together with the connecting disc, and the other end is equipped with inner thread section, the outer thread section and inner bolt section are screwed together, the outer thread of the outer thread section and the inner thread of the inner thread section are equipped with sealing layer between the side of the connecting section and the side of the main pipe section, and the inner thread section and the outer thread section are sealed and connected together by the sealing layer. When using, the connecting disc of two utility models is butt jointed together and the threaded holes are aligned, then the connecting bolt is screwed together with the connecting nut after passing through the bolt holes on the two utility models, so that the connecting disc of the two utility models is sealed and abuts together (usually a sealing ring is arranged between the two connecting discs to improve the sealing performance), and the outer thread of the outer thread section and the inner thread of the inner thread section are extruded to extrude the sealing layer after the two utility models are fastened together, so that the leakage between the main pipe section and the connecting section is effectively avoided. When the two utility models are disassembled again, the connecting disc is rotated, so that the connecting section of the two utility models moves towards the same direction, and the whole is taken off from one main pipe section and connected to another main pipe section to realize disassembly. When installing, the whole is rotated two connecting discs, so that the disconnected connecting section is screwed to the disconnected main pipe section.

[0005] As a preferred, the sealing layer is fixed on the side of the outer thread of the outer thread section away from the connecting section, and the sealing layer only abuts together with the side of the inner thread of the inner thread section away from the main pipe section. The sealing layer is convenient to make.

[0006] As preferred, the sealing layer is a rubber structure.

[0007] As preferred, the sealing layer is vulcanized together with the outer thread of the outer thread section on the side away from the connecting section.

[0008] As preferred, the sealing layer is a rubber structure.

[0009] As preferred, the connecting disc is provided with an annular sealing ring mounting groove on the end face away from the pipeline, and the annular sealing ring mounting groove extends along the circumference of the connecting disc.

[0010] As preferred, the annular sealing ring mounting groove penetrates to the inner circumferential surface of the connecting disc.

[0011] As preferred, the annular sealing ring mounting groove is provided with a sealing ring, the thickness of the sealing ring is greater than twice the depth of the annular sealing ring mounting groove, and the outer diameter of the sealing ring is equal to the outer diameter of the annular sealing ring mounting groove.

[0012] As preferred, it further comprises a loose washer, a connecting bolt and a connecting nut, the connecting disc is provided with a connecting disc part locking pit on the end face facing the pipeline section, the outer periphery of the end face of the connecting nut is provided with a nut part locking pit, the loose washer comprises a circular ring body and a plurality of locking teeth distributed along the circumference of the circular ring body on the outer circumferential surface of the circular ring body, and the locking teeth are a bendable structure. When the two utility models are connected together, the connecting bolt is first threaded on the loose washer and then screwed together with the connecting nut after penetrating through the bolt holes of the two utility models, one locking tooth on the loose washer is bent and threaded into the connecting disc part locking pit, then the connecting nut is locked and the nut part locking pit is aligned with one of the locking teeth that is not threaded into the connecting disc part locking pit, and the locking tooth aligned with the nut part locking pit is bent and threaded into the nut part locking pit.

[0013] The utility model has the following beneficial effects: convenient to disassemble and reconnect. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a practical use state schematic view of the utility model;

[0015] Figure 2 is Figure 1 is a partial enlarged view of A of the utility model;

[0016] Figure 3 is a schematic view of the anti-loose washer;

[0017] Figure 4 is Figure 1 is a partial enlarged view of B of the utility model.

[0018] In the figure: pipeline 1, connecting disc 2, bolt hole 3, annular sealing ring installation groove 6, sealing ring 7, anti-loose washer 8, connecting bolt 9, connecting nut 10, connecting disc part locking pit 11, nut part locking pit 12, circular ring body 13, locking tooth 14, main pipe section 17, connecting section 18, outer thread section 19, inner thread section 20, sealing layer 21, outer thread of outer thread section 22, inner thread of inner thread section 23, locking tooth 24 passing through connecting disc part locking pit, locking tooth 25 aligning with nut part locking pit. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Reference Figures 1 to 4The utility model provides an easy-to-install flange joint, which comprises a pipeline 1 and a connecting disc 2 arranged on one end of the pipeline. The connecting disc is provided with a plurality of bolt holes 3 distributed in the circumferential direction. The pipeline comprises a main pipe section 17 and a connecting section 18. One end of the main pipe section is provided with an external threaded section 19, and one end of the connecting section is fixedly connected with the connecting disc, and the other end is provided with an internal threaded section 20. The external threaded section and the internal threaded section are threadedly connected together. A sealing layer 21 is arranged between the external thread 22 of the external threaded section on the side away from the connecting section and the internal thread 23 of the internal threaded section on the side away from the main pipe section. The sealing layer seals and connects the internal threaded section and the external threaded section together. The sealing layer is fixedly connected to the side of the external thread of the external threaded section away from the connecting section, and the sealing layer is only in abutment with the side of the internal thread of the internal threaded section away from the main pipe section. The sealing layer is of a rubber structure. The sealing layer is vulcanized together with the side of the external thread of the external threaded section away from the connecting section. An annular sealing ring mounting groove 6 is arranged on the end face of the connecting disc away from one end of the pipeline, and the annular sealing ring mounting groove extends in the circumferential direction of the connecting disc. The annular sealing ring mounting groove penetrates to the inner circumferential surface of the connecting disc. A sealing ring 7 is arranged in the annular sealing ring mounting groove. The thickness of the sealing ring is greater than twice the depth of the annular sealing ring mounting groove, and the outer diameter of the sealing ring is equal to the outer diameter of the annular sealing ring mounting groove. Further, a loose preventing washer 8, a connecting bolt 9 and a connecting nut 10 are arranged. The end face of the connecting nut is provided with a nut part locking recess 12. The loose preventing washer comprises a circular ring body 13 and a plurality of locking teeth 14 arranged on the outer circumferential surface of the circular ring body and distributed in the circumferential direction of the circular ring body. The locking teeth are of a bendable structure.

[0021] When the two utility models are connected together, the connecting discs of the two utility models are butted together and the threaded holes are aligned, the connecting bolt is simultaneously arranged in the bolt holes of the two utility models, and then is arranged in the loose preventing washer and is threadedly connected with the connecting nut. One of the locking teeth of the loose preventing washer is bent and arranged in the connecting disc part locking recess, then the connecting nut is locked, and the nut part locking recess is aligned with one of the locking teeth 24 which is not arranged in the connecting disc part locking recess. The locking tooth 25 aligned with the nut part locking recess is bent and arranged in the nut part locking recess. The sealing ring seals and connects the two utility models together. After the two utility models are fastened together, the external thread of the external threaded section and the internal thread of the internal threaded section are extruded to extrude the sealing layer, thereby effectively avoiding leakage between the main pipe section and the connecting section. When the two utility models are disassembled, the connecting discs are rotated to move the connecting sections of the two utility models in the same direction, thereby the whole is removed from one main pipe section and is connected to another main pipe section to realize disassembly. When the two utility models are assembled, the whole is rotated by two connecting discs to make the disconnected connecting sections threadedly connected to the disconnected main pipe section.

[0022] Relative terms such as first and second and the like can be used herein to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0023] While embodiments of the present application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, many modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application as defined by the appended claims and their equivalents.

Claims

1. An easily mounted flange joint comprising a pipe and a connecting disc provided on one end of the pipe, said connecting disc being provided with a plurality of bolt holes distributed in the circumferential direction, characterized in that, The pipeline comprises a main pipe section and a connecting section, one end of the main pipe section is provided with an outer threaded section, one end of the connecting section is fixedly connected with the connecting disc, and the other end is provided with an inner threaded section, the outer threaded section and the inner threaded section are threadedly connected together, a sealing layer is arranged between the outer thread of the outer threaded section and the inner thread of the inner threaded section, and the sealing layer seals and connects the inner threaded section and the outer threaded section together.

2. A flange joint according to claim 1, wherein The sealing layer is fixedly connected to the side of the outer thread of the outer threaded section away from the connecting section, and the sealing layer only abuts against the side of the inner thread of the inner threaded section away from the main pipe section.

3. A flange joint according to claim 2, wherein The sealing layer is of a rubber structure.

4. A flange joint according to claim 3, wherein The sealing layer is vulcanized together with the side of the outer thread of the outer threaded section away from the connecting section.

5. A flange joint according to claim 1, wherein The sealing layer is of a rubber structure.

6. A flange joint according to claim 1 or 2 or 3 or 4 or 5, characterised in that, An annular sealing ring mounting groove is arranged on the end face of the connecting disc away from one end of the pipeline, and the annular sealing ring mounting groove extends along the circumference of the connecting disc.

7. A flange joint according to claim 6, wherein The annular sealing ring mounting groove penetrates to the inner circumferential surface of the connecting disc.

8. A flange joint according to claim 6, wherein A sealing ring is arranged in the annular sealing ring mounting groove, the thickness of the sealing ring is greater than twice the depth of the annular sealing ring mounting groove, and the outer diameter of the sealing ring is equal to the outer diameter of the annular sealing ring mounting groove.

9. An easy-to-mount flanged joint according to claim 1 or 2 or 3 or 4 or 5, characterized in that, Further comprising a loose preventing washer, a connecting bolt and a connecting nut, a connecting disc part locking pit is arranged on the end face of the connecting disc towards one section of the pipeline, a nut part locking pit is arranged on the outer periphery of the end face of the connecting nut, the loose preventing washer comprises a circular ring body and a plurality of locking teeth distributed along the circumference of the circular ring body on the outer periphery of the circular ring body, and the locking teeth are of a bendable structure.

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