Pipeline element joint

Abstract

The invention provides a pipeline element connector which is used for coupling two pipeline elements, the pipeline element connector comprises at least two coupling units, each coupling unit comprises a shell, a hinged connection part and a fastening connection part, the hinged connection part and the fastening connection part are distributed at the two opposite ends of the shell, and the hinged connection part and the fastening connection part are arranged on the shell. The two coupling units are symmetrically arranged, the hinged connection portions of the two coupling units are identical in structure and hinged to each other in opposite directions, the pipeline element connector further comprises gaskets and fastening elements, the gaskets and the fastening elements are arranged on the coupling units, and the fastening elements are arranged to be connected with the at least two coupling units in a fastening mode.

Description

Technical Field

[0001] The invention relates to the field of pipeline connection, and more particularly to a pipeline element joint. Background Art

[0002] A conventional pipe element joint typically includes two metal shells, a washer adapted to be received in the metal shells, and a plurality of fasteners such as bolts and nut fasteners for firmly fastening each of the metal shells to each other. The two ends of the metal shells of a conventional pipe element joint are connected by fasteners, and two pairs of bolt and nut fasteners need to be configured and installed separately, which is relatively cumbersome to install. Another connection method is to configure bolt and nut fasteners at one end and a pivot connection at the other end to allow the two metal shells to move pivotally relative to each other. It is necessary to set a through hole in the metal shells and configure a pin for the through hole to realize the pivot connection of the two metal shells. There are many parts and the installation is also relatively cumbersome, resulting in high production costs. In addition, the existing pivot connection structure is easy to fall off during installation and the connection is not stable. Summary of the invention

[0003] An advantage of the present invention is to provide a pipe element joint, which has a simple structure, reduces installation steps, saves installation time, improves installation efficiency, and can reduce costs.

[0004] Another advantage of the present invention is to provide a pipeline element joint, wherein one end of at least two coupling units of the pipeline element joint is connected by a hinged manner, allowing the coupling units to rotate relative to each other, thereby facilitating a fastened installation when the coupling units are docked with the pipeline element.

[0005] Another advantage of the present invention is to provide a pipeline element joint, wherein the coupling unit includes an articulated connection portion, and the articulated connection portions of two coupling units are articulated to each other, without the need for additional connection elements, thereby reducing parts and installation steps and lowering costs.

[0006] Another advantage of the present invention is that it provides a pipeline element joint, wherein the hinged connection parts of the two coupling units are of the same structure, the hinged connection is reliable, and the two coupling units have the same structure and can be manufactured by the same set of molds, thereby reducing production costs.

[0007] Another advantage of the present invention is to provide a pipe element joint, wherein the two hinged connection parts are configured to rotate from a tightened state along a circumferential direction to an open state, so that the connection between the two hinged connection parts is more stable.

[0008] Another advantage of the present invention is to provide a pipe element joint, the other end of the coupling unit of the pipe element joint is connected by a fastening element, so that the pipe element joint can be fastened to the pipe element.

[0009] Another advantage of the present invention is to provide a pipe element joint, wherein a gasket is arranged between the coupling unit and the pipe element, so as to enhance the connection tightness between the coupling unit and the pipe element and enhance the connection reliability.

[0010] Another advantage of the present invention is to provide a pipe element joint, the hinged connection part of which can be preassembled. When in use, the pipe element only needs to be inserted into the coupling unit and then the fastening element is adjusted to achieve fastening installation, thereby achieving rapid installation.

[0011] According to one aspect of the present invention, the present invention provides a pipeline element joint for coupling two pipeline elements, comprising:

[0012] At least two coupling units, each of which comprises a housing, a hinged connection portion and a fastening connection portion, wherein the hinged connection portion and the fastening connection portion are arranged at opposite ends of the housing, the two coupling units are arranged symmetrically, and the two hinged connection portions of the two coupling units have the same structure and are hinged to each other in opposite installation directions;

[0013] a gasket configured on the coupling unit; and

[0014] A fastening element is configured to fasten and connect at least two coupling units.

[0015] According to one embodiment, the articulated connection portion includes an articulated shaft portion and an articulated arm, which are arranged at one end of the shell in a mutually staggered manner, wherein the articulated shaft portion of one coupling unit and the articulated arm of another coupling unit are pivotally connected.

[0016] According to one embodiment, the hinge shaft portion includes a hinge shaft, the hinge arm has a hinge hole, and when the coupling units are in the closed state, the hinge shaft of one coupling unit is located in the hinge hole of the hinge arm of the other coupling unit.

[0017] According to one embodiment, the articulated shaft has an outer articulated surface, the articulated arm has an inner articulated surface, and when the outer articulated surface abuts against the corresponding inner articulated surface, the coupling unit is in a closed state.

[0018] According to one embodiment, the hinge shaft portion includes a base portion, the base portion is formed to extend outward from an end portion of the housing, and the hinge shaft is formed to protrude and extend from the base portion in a direction perpendicular to the base portion.

[0019] According to one embodiment, the shell includes an integrally formed first shell side portion and a second shell side portion, wherein the length of the first shell side portion is shorter than the length of the second shell side portion, so that the articulated axis portion and the articulated arm are arranged offset from each other, and the projections of the articulated axis portion and the articulated arm do not overlap.

[0020] According to one embodiment, the outer articulated surface of the articulated shaft and the inner articulated surface of the articulated arm are oriented in the same direction, and the two articulated shafts and the corresponding two articulated arms are matched with each other in a staggered manner, so that the two outer articulated surfaces and the two inner articulated surfaces have the same radius and respectively cooperate to form the two circular structures; or the radius of the outer articulated surface of the articulated shaft is 0.1mm-5mm smaller than the radius of the inner articulated surface of the corresponding articulated arm.

[0021] According to one embodiment, the fastening connection portion has a mounting hole, and the fastening element includes a bolt and a nut. When the coupling unit is in the closed state, the mounting holes of the fastening connection portions of the two coupling units are penetrated by the bolt, and the nut is installed on the bolt. The position of the bolt on the nut is adjusted to adjust the fastening degree of the coupling unit.

[0022] According to one embodiment, the pipe element connector is a grooved connector, a plain end pipe connector, a ring connector or a shoulder connector.

[0023] According to another aspect of the present invention, the present invention provides a coupling structure of a pipe element joint, comprising:

[0024] At least two coupling units, each of which comprises a housing, an articulated connection portion and a fastening connection portion, wherein the articulated connection portion and the fastening connection portion are arranged at opposite ends of the housing, the two coupling units are arranged symmetrically, and the two articulated connection portions of the two coupling units have the same structure and are articulated to each other in opposite installation directions,

[0025] Among them, the articulated connection part of each coupling unit includes an articulated shaft part and an articulated arm that are staggered. Among the two coupling units, the articulated shaft part of one coupling unit and the articulated arm of the other coupling unit cooperate with each other to form two articulated structures that are staggered with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of a pipe element joint installed in a pipe element according to a preferred embodiment of the present invention.

[0027] Figure 2 It is a three-dimensional schematic diagram of a pipe element joint according to a preferred embodiment of the present invention.

[0028] Figure 3 It is an exploded schematic diagram of a pipe element joint according to a preferred embodiment of the present invention.

[0029] Figure 4 It is a schematic top view of a coupling unit of a pipe element joint according to a preferred embodiment of the present invention.

[0030] Figure 5 It is a stereoscopic schematic diagram and a partially enlarged schematic diagram of a pipe element joint from another perspective according to a preferred embodiment of the present invention.

[0031] Figure 6 It is a top view schematic diagram of a pipe element joint according to a preferred embodiment of the present invention.

[0032] Figure 7 It is a schematic diagram of the rotation process of a pipe element joint according to a preferred embodiment of the present invention.

[0033] Figure 8 It is a schematic diagram and a partially enlarged schematic diagram of a pipe element joint in an open state according to a preferred embodiment of the present invention.

[0034] Fig. 9A It is a three-dimensional schematic diagram of a pipe element joint according to another preferred embodiment of the present invention.

[0035] Fig. 9B It is a cross-sectional schematic diagram of a pipe element joint according to another preferred embodiment of the present invention.

[0036] Fig. 10A It is a three-dimensional schematic diagram of a pipe element joint according to another preferred embodiment of the present invention.

[0037] Fig. 10B It is a cross-sectional schematic diagram of a pipe element joint according to another preferred embodiment of the present invention.

[0038] Fig.11A It is a three-dimensional schematic diagram of a pipe element joint according to another preferred embodiment of the present invention.

[0039] Fig. 11B It is a cross-sectional schematic diagram of a pipe element joint according to another preferred embodiment of the present invention. DETAILED DESCRIPTION

[0040] The terms and words used in the following description are not limited to the literal meanings, but are used only by the inventor to enable a clear and consistent understanding of the present invention. Therefore, it is obvious to those skilled in the art that the following description of various embodiments of the present invention is provided for illustrative purposes only and not for the purpose of limiting the present invention as defined by the appended claims and their equivalents.

[0041] Although ordinals such as "first," "second," and the like will be used to describe various components, those components are not limited herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component without departing from the teachings of the inventive concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0042] The terms used herein are only used for the purpose of describing various embodiments and are not intended to be limiting. As used herein, singular forms are intended to also include plural forms, unless the context clearly indicates an exception. In addition, it will be understood that the terms "including" and / or "having" when used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0043] Reference Manual Attached Figures 1 to 8 , the present invention provides a pipe element joint 100 for coupling at least two pipe elements 200, the pipe element joint 100 comprising at least two coupling units 10 and a fastening element 20. The two coupling units 10 are pivotally connected so as to be pivotally movable with each other, and after the two coupling units 10 are mounted on the pipe element 200, the fastening element 20 fastens the two coupling units 10 with each other. The pipe element joint 100 further comprises at least one washer 30, which is disposed in the two coupling units 10.

[0044] The two coupling units 10 can be made of metal or plastic material, can be coupled to each other and form a substantially annular structure, and define an inner cavity 101. In one embodiment, each of the coupling units 10 has two sides of a C shape. The coupling unit 10 is suitable for moving between an open state and a closed state, in which the other side of the coupling unit 10 is moved away from the other coupling units 10, and in the closed state, the other side of the coupling unit 10 is moved to be connected with the other coupling units 10 in an end-to-end manner to form the inner cavity 101 of the annular structure. The fastening element 30 is configured to fasten the coupling unit 10 in the closed state. When the pipeline element joint 100 is installed on the pipeline element 200, the gasket 30 is arranged in the inner cavity 101 formed by the two coupling units 10 to provide a sealing effect.

[0045] Further, in the open state, the two coupling units 10 are configured to be away from each other, and in the closed state, the two coupling units 10 are configured to be tightly connected via the fixing element 20 .

[0046] The two pipeline components 200 are specifically divided into a first pipeline component 210 and a second pipeline component 220, and each of the pipeline components 210 and 220 can be, but not limited to, a pipeline, a pipe fitting such as an elbow, a valve, and a tee, or a device having a tubular structure. Therefore, the pipeline component connector 100 can be used to couple two pipelines, a pipeline and a pipe fitting, two pipe fittings, a pipeline and a device having a tubular structure, and two devices having a tubular structure.

[0047] In the present invention, the two coupling units 10 are two identical coupling units 10, which can be manufactured by the same mold, thereby reducing molds, reducing production costs, and improving production efficiency. In other words, the coupling units 10 included in the pipe element joint 100 are identical parts.

[0048] Each of the coupling units 10 includes a shell 11, a hinged connection portion 12 and a fastening connection portion 13. The shell 11 is roughly C-shaped, having a length extending along the C-shape, and a width perpendicular to the C-shape extension direction. The hinged connection portion 12 and the fastening connection portion 13 are respectively located at opposite ends of the shell 11, and are integrally extended from two opposite ends of the shell 11. One end of the two coupling units 10 is pivotally connected by the hinged connection portion 12, and the other end is fastened by installing the fastening element 20 through the fastening connection portion 13. Therefore, one end of the two coupling units 10 can be directly pivotally connected by the cooperation of the two hinged connections 12, without the need to separately configure a pivot connection element, thereby reducing parts, simplifying installation steps, and reducing costs. The other ends of the two coupling units 10 are mounted to the fastening connection portion 13 through the fastening element 20 to achieve fastening connection. The fastening degree of the fastening element 20 can be used to adjust the installation fastening degree of the pipe element joint 100 on the pipe element 200 .

[0049] The housing 11 has an outer surface and an inner surface opposite to each other, the inner surface faces the inner cavity 101, the outer surface faces opposite to the inner surface, and the outer surface faces the outside of the coupling unit 10. The hinge connection part 12 and the fastening connection part 13 are arranged on the outer surface of the housing 11.

[0050] In this embodiment, the pipeline element joint 100 is implemented as a groove joint, and the shell 11 has engagement keys on opposite sides, and the connecting end of the pipeline element 200 has a groove corresponding to the connection end. When the pipeline element 200 is connected and assembled with the pipeline element joint 100, the engagement keys of the shell 11 are correspondingly retained in the groove of the connecting end of the pipeline element 200.

[0051] During the process of installing the pipeline element joint 100 on the pipeline element 200, it is not necessary to remove the fastening element 20 and the gasket 30. In other words, with the gasket 30 arranged in the two coupling units 10 and the fastening element 30 arranged in the two coupling units 10, the entire pipeline element joint 100 is installed on the two pipeline elements 200 to couple the two pipeline elements 200.

[0052] An opening 102 is defined between the two fastening connection parts 13 of the two coupling units 10. When the opening 102 is large enough, the end of one of the two pipeline elements 200 can pass through, so that the entire pipeline element joint 100 can be directly installed on the two pipeline elements 200 without removing the gasket 30 and the fastening element 20. After the pipeline element joint 100 is completely installed on the two pipeline elements 200, the opening 102 can be reduced by adjusting the fastening element 20, so that the pipeline element joint 100 is tightly installed on the two pipeline elements 200. Before installation, the gasket 30 is set in the inner cavity 101 of the housing 11, the bolt 21 is installed on the nut 22, and the nut 22 is installed on the bolt 21. When the pipe element joint 100 is mounted on the pipe element 200 , the washer 30 does not need to be detached from the housing 11 , and the bolt 21 and the nut 22 do not need to be detached from the fastening connection portion 12 .

[0053] Therefore, the two coupling units 10 can be pivotally moved with the hinged connection 13 as a pivot point. When the fastener 20 is operated, the opening 102 of the pipe element joint 100 is reduced, and the distance between the two fastening connections 12 is reduced, so that the housing 11 is fastened and retained to the two pipe elements 200.

[0054] The shell 11 includes an integrally formed first shell side portion 111 and a second shell side portion 112. The first shell side portion 111 and the second shell side portion 112 are both C-shaped and have a length distributed along the C-shape. The first shell side portion 111 and the second shell side portion 112 respectively occupy two sides of the shell 11 along the width direction.

[0055] The fastening connection portion 13 is formed by extending outward from the outer surface of the end of the housing 11. Further, the fastening connection portion 13 extends in a direction perpendicular to the tangent plane of the outer surface of the end of the housing 11. The fastening connection portion 13 has a mounting hole 130 for the fastening element 20 to pass through. The fastening connection portion 13 is integrally extended outward from the ends of the first housing side portion 111 and the second housing side portion 112. At the position where the fastening connection portion 13 is set, the end edges of the first housing side portion 111 and the second housing side portion 113 are flush.

[0056] The two coupling units 10 each include one hinged connection part 12, and the two hinged connection parts 12 have the same structure and opposite installation directions. More specifically, the hinged connection part 12 includes a hinged shaft part 121 and a hinged arm 122, and the hinged shaft part 121 and the hinged arm 122 are mutually staggered and arranged at the other end of the shell 11, opposite to the fastening connection part 13. The hinged shaft part 121 and the hinged arm 122 are formed by integrally extending outward from the ends of the first shell side part 111 and the second shell side part 112, respectively. Among them, the "extending outward" mentioned in the present application means extending in the direction toward which the outer surface of the shell 11 faces. The staggered arrangement of the hinged shaft part 121 and the hinged arm 122 is such that the two are staggered in the up-down, left-right, and front-back directions, and the projections of the two do not overlap.

[0057] The hinge shaft portion 121 includes a base 1211 and a hinge shaft 1212. The base 1211 is formed by extending outward from one end of the first shell side portion 111, and the hinge shaft 1212 is formed by protruding from the surface of the base 1212 in a direction perpendicular to the base 1212. The hinge shaft 1212 is a semi-cylinder. The hinge shaft 1212 has an outer hinge surface 12121 and a side surface 12122. The outer hinge surface 12121 is an arc-shaped surface, and the side surface 12122 is a straight surface. Further, the hinge shaft 1212 is located at the edge of the base 1211, the side surface 12122 and the edge of the base 1221 face the same direction, and the outer hinge surface 12121 and the outer side surface of the shell 11 face the same direction. The hinge shaft 1212 further has two chamfered surfaces 12123, which are located between the outer hinge surface 12121 and the side surface 12122 and at two corners of the hinge shaft 1212. The chamfered surfaces 12123 extend obliquely relative to the side surface 12122 toward the outer hinge surface 12121 to form chamfers at two corners of the hinge shaft 1212, making it easier for the hinge shaft 1212 to enter the hinge arm 122.

[0058] The hinge arm 122 is integrally extended outward from the end of the second housing side portion 112. At least a portion of the hinge arm 122 is C-shaped to define a hinge hole 1220 and an inner hinge surface 1221. The corresponding hinge shaft 1212 enters the hinge hole 1220 through the C-shaped opening of the hinge arm 122. The second housing end portion 112 is different in length from the first housing end portion 111, for example, the second housing end portion 112 is longer, so as to achieve a staggered arrangement of the hinge shaft portion 121 and the hinge arm 122.

[0059] In the two coupling units 10, the hinge shaft 1212 of one coupling unit 10 and the hinge arm 122 of the other coupling unit 10 cooperate with each other to form two hinge structures that are offset from each other.

[0060] The inner articulated surface 1221 and the outer surface of the housing 11 face the same direction. In the same coupling unit 10, the outer articulated surface 12121 of the articulated shaft 1212 and the inner articulated surface 1221 of the articulated arm 122 face the same direction, both facing the direction of the outer surface of the housing 11. Further, projected along the extension direction of the articulated shaft 122, the projections of the outer articulated surface 12121 of the articulated shaft 1212 and the inner articulated surface 1221 of the articulated arm 122 are located on the circumference of the same circle, or approximately on the circumference of the same circle.

[0061] The two coupling units 10 are two identical components, that is, the coupling units 10 have the same structure. The two coupling units 10 are symmetrically installed and arranged, and the two articulated connection parts 13 of the two coupling units 10 are articulated with each other. The articulated shaft part 121 of one of the coupling units 10 is coupled and connected with the articulated arm 122 of the other coupling unit 10, and the articulated arm 122 of one of the coupling units 10 is coupled and connected with the articulated shaft part 121 of the other coupling unit 10. The two articulated connection parts 13 of the two coupling units 10 are arranged rotationally symmetrically with each other, so that the two articulated shafts 1212 are staggered and rotationally symmetrical, the two articulated arms 122 are staggered and rotationally symmetrical, and the two outer articulated surfaces 12121 of the two articulated shafts 1212 face oppositely, and the two inner articulated surfaces 1221 of the two articulated arms 122 face oppositely. When the coupling unit 10 is rotated and the articulated arm 122 contacts the articulated shaft 1212, the articulated arm 122 limits the articulated shaft 1212. The two articulated arms 122 facing opposite directions limit the two articulated shafts 1212 in opposite directions to prevent the two coupling units 10 from detaching from each other.

[0062] Specifically, in the open state, the two coupling units 10 are arranged rotationally symmetrically, the two articulated shafts 121 are rotationally symmetrical, and the two articulated arms 122 are rotationally symmetrical. The positions of the two coupling units 10 are adjusted, the articulated shaft 1212 of one coupling unit 10 is opposed to the articulated arm 122 of the other coupling unit 10, the straight surface 12122 of the articulated shaft 1212 faces the inner articulated surface 1221 of the articulated arm 122, the articulated arm 122 of one coupling unit 10 is opposed to the articulated shaft 1212 of the other coupling unit 10, and the inner articulated surface 1221 of the articulated arm 122 is opposed to the straight surface 12122 of the articulated shaft 1212. At this time, the projections of the outer hinge surface 12121 of each hinge shaft 1212 and the inner hinge surface 1221 of each hinge arm 122 along the extension direction of the hinge shaft 1212 are located on the circumference of the same circle, or are approximately located on the circumference of the same circle, so as to form a circular structure 1201, and the outer hinge surface 12121 and the inner hinge surface 1221 are completely not in contact with each other. The two hinge shafts 1212 and the two hinge arms 122 are mutually staggered, so that the two outer hinge surfaces 12121 and the two inner hinge surfaces 1221 are respectively matched to form two circular structures 1201. The two circular structures 1201 are interlaced with each other. Next, at least one of the coupling units 10 is rotated so that the hinge shaft 1212 is rotated into the hinge hole 1220 of the hinge arm 122, until the hinge shaft 1212 is completely located in the hinge hole 1220, and the coupling unit 10 is moved to the closed state. At this time, the outer hinge surface 12121 and the inner hinge surface 1221 are in contact, or in other words, the outer hinge surface 12121 abuts against the inner hinge surface 1221, and the hinge shaft 1212 is located in the hinge hole 1220, forming a semicircular structure 1202. Since each of the coupling units 10 includes the hinge shaft portion 121 and the hinge arm 122, the two coupling units 10 cooperate, and through the cooperation of the two hinge shaft portions 121 and the two hinge arms 122, two semicircular structures 1202 are formed. The two semicircular structures 1202 are arranged alternately, and the straight surfaces 12122 of the two semicircular structures 1202 face oppositely.

[0063] Since the two articulated arms 122 of the two coupling units 10 are arranged oppositely, the two articulated shafts 1212 are limited in two opposite directions. Furthermore, when projected along the extension direction of the articulated shaft 1212, the projections of the two articulated arms 122 roughly form a circle, so that the two articulated arms 122 limit the articulated shaft 1212 in all directions, effectively preventing the two coupling units 10 from being separated from each other.

[0064] When the projections of the outer articulated surface 12121 of each articulated shaft 1212 and the inner articulated surface 1221 of each articulated arm 122 along the extension direction of the articulated shaft 1212 are located on the circumference of the same circle, and the radius of the outer articulated surface 12121 of each articulated shaft 1212 and the corresponding inner articulated surface 1221 of the articulated arm 122 are the same, then the two coupling units 10 need to be rotated 180° in the circumferential direction to move both to an open state.

[0065] It can be understood that the radius of the outer articulated surface 12121 of the articulated shaft 1212 of one coupling unit 10 can be smaller than the radius of the inner articulated surface 1221 of the corresponding articulated arm 122 of another coupling unit 10, such as 0.1mm-5mm smaller. In this way, the two coupling units 10 need to be rotated relative to each other by a predetermined angle in the circumferential direction before they can be moved to an open state, such as 60°-180°.

[0066] The movement of the coupling unit 10 between the open state and the closed state can be achieved by rotating one of the coupling units 10 or by rotating both coupling units 10. Further, the movement from the open state to the closed state can be achieved by rotating one of the coupling units 10 by a predetermined angle in the circumferential direction, so that the two hinge shafts 1212 respectively enter the corresponding two hinge holes 1220, or the movement from the closed state to the open state can be achieved by disengaging the two hinge shafts 1212 from the two hinge holes 1220 respectively, so that the two coupling units 10 can be disengaged from each other; or the movement from the open state to the closed state can be achieved by rotating the two coupling units 10 in the circumferential direction together, so that the angle of the two coupling units 10 rotating together reaches a preset angle, so that the two hinge shafts 1212 respectively enter the corresponding two hinge holes 1220. Alternatively, the hinge 1212 is moved from the closed state to the open state, so that the two hinge shafts 1212 are respectively disengaged from the hinge holes 1220 , thereby canceling the position limitation of the hinge shaft 1212 by the hinge arm 122 .

[0067] In the closed state, the two fastening connection parts 13 are opposite to each other and are fastened and connected by the fastening element 20. Specifically, the mounting holes 130 of the two fastening connection parts 13 are in an aligned state, so that the bolt 21 can pass through the two mounting holes 130, and the nut 22 can be installed on one end of the bolt 22. By adjusting the position of the nut 22 on the bolt 21, the position between the two fastening connection parts 13 can be adjusted, that is, the size of the opening 101 can be adjusted, and then the fastening degree of the two coupling units 10 on the pipeline element 200 can be adjusted.

[0068] It is understandable that the pipeline element connector 100 can be integrally mounted on the pipeline element 200 and integrally detached from the pipeline element 200 with the coupling unit 10 in the closed state.

[0069] refer to Fig. 9A and Fig. 9B Another preferred embodiment of the present invention is shown. The pipe element connector 100A is implemented as a plain end pipe connector in this embodiment, which includes a coupling unit 10A and a fastening element 20A. The coupling unit 10A includes a housing 11A, a hinge connection part 12A and a fastening connection part 13A. The fastening unit 20A is installed on the fastening connection part 13A to fasten the coupling unit 10A. The implementation of the hinge connection part 12A is the same as the hinge connection part 12 of the previous embodiment. In the previous embodiment, the housing 11 has a joint key corresponding to the groove of the pipe element 200. In this embodiment, the housing 11A of the coupling unit 10A is not provided with a joint key, so that it is suitable for connecting with the pipe element 200 of the plain end pipe. The interior of the coupling unit 10A is configured with a gasket 30A.

[0070] refer to Fig. 10A and Fig. 10B Another preferred embodiment of the present invention is shown, the pipeline element joint 100B is implemented as a shoulder-type joint, which includes a coupling unit 10B and a fastening element 20B, the coupling unit 10B includes a housing 11B, a hinge connection part 12B and a fastening connection part 13B, the fastening unit 20B is installed on the fastening connection part 13B to fasten the coupling unit 10B, the implementation of the hinge connection part 12B is the same as the hinge connection part 12 of the previous embodiment, and the difference from the previous embodiment is that the shoulder-shaped joint of this embodiment is suitable for connecting with a shoulder-type pipeline element 200, that is, the connecting end of the pipeline element 200 has a raised step and is shoulder-shaped. In addition, the outer surface of the housing 11B is provided with a plurality of grooves 110B, two rows of the grooves 110B are distributed in the circumferential direction, and there is a groove between the two rows of the grooves 110B. The grooves 110B are provided with openings along the edge of the housing 11B. The bottom of the groove 110B is stepped, the bottom of one side close to the edge of the housing 11B is lower, and the bottom of the other side is higher. A gasket 30B is disposed inside the coupling unit 10B.

[0071] refer to Fig.11A and Fig. 11BAnother preferred embodiment of the present invention is shown, the pipeline element joint 100C is implemented as a ring joint, which includes a coupling unit 10C and a fastening element 20C, the coupling unit 10C includes a shell 11C, a hinge connection part 12C and a fastening connection part 13C, the fastening unit 20C is installed on the fastening connection part 13C to fasten the coupling unit 10C, the implementation method of the hinge connection part 12C is the same as the hinge connection part 12 of the aforementioned embodiment, and the difference from the aforementioned embodiment is that the shell 11C of the coupling unit 10C extends roughly straight in the axial direction, and the middle part of the outer surface of the shell 11C is provided with a plurality of grooves 110C distributed at intervals in the circumferential direction. Furthermore, the grooves 110C are distributed in two rows in the circumferential direction, which are closer to the middle part of the shell 11 respectively, and there is a certain interval between the two rows of grooves 110C. The pipe element joint 100C further includes two clamping rings 40C, which are respectively arranged on both sides of the gasket 30C in the axial direction, with a certain interval between the two clamping rings 40C and the gasket 30C, and the clamping ring 40C is annular, suitable for being clamped on the pipe element 200, and is located between the coupling unit 10C and the pipe element 200, so as to form a ring joint. It can be understood that the pipe element joint 100C can also include more than two clamping rings 40C.

[0072] That is, the pipe element joint provided in the present application may be a groove joint, a flat-end pipe joint, a ring joint or a shoulder joint, or may be other forms of pipe element joints.

[0073] The specific embodiments describe the basic principles of the present invention, but it should be pointed out that the advantages, strengths, effects, etc. mentioned in the present invention are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. must be possessed by each embodiment of the present invention. In addition, the above-mentioned specific details are only for the purpose of illustration and facilitation of understanding, rather than limitation, and the above details do not limit the present invention to being implemented by adopting the above-mentioned specific details.

[0074] The block diagrams of the devices, apparatuses, equipment, and systems involved in the present invention are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", and the like are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to", and can be used interchangeably with it.

[0075] It should also be noted that in the device, apparatus and method of the present invention, each component or each step can be decomposed and / or reassembled, and such decomposition and / or reassembly should be regarded as an equivalent solution of the present invention.

[0076] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present invention. Therefore, the present invention is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0077] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present invention to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A pipe element connector for coupling two pipe elements, characterized in that: include: At least two coupling units, each of which comprises a housing, a hinged connection portion and a fastening connection portion, wherein the hinged connection portion and the fastening connection portion are arranged at opposite ends of the housing, the two coupling units are arranged symmetrically, and the two hinged connection portions of the two coupling units have the same structure and are hinged to each other in opposite installation directions; a gasket configured on the coupling unit; as well as A fastening element is configured to fasten and connect at least two coupling units.

2. The pipe element joint according to claim 1, characterized in that: The articulated connection portion includes an articulated shaft portion and an articulated arm, which are arranged at one end of the shell in a mutually offset manner, wherein the articulated shaft portion of one coupling unit and the articulated arm of the other coupling unit are pivotally connected.

3. The pipe element joint according to claim 2, characterized in that: The hinge shaft portion includes a hinge shaft, and the hinge arm has a hinge hole. When the coupling units are in the closed state, the hinge shaft of one coupling unit is located in the hinge hole of the hinge arm of the other coupling unit.

4. The pipe element joint according to claim 3, characterized in that: The articulated shaft has an outer articulated surface, the articulated arm has an inner articulated surface, and when the outer articulated surface abuts against the corresponding inner articulated surface, the coupling unit is in a closed state.

5. The pipe element joint according to claim 3, characterized in that: The hinge shaft portion includes a base portion, the base portion is formed to extend outward from an end portion of the housing, and the hinge shaft is formed to protrude and extend from the base portion in a direction perpendicular to the base portion.

6. The pipe element joint according to claim 4, characterized in that: The shell includes an integrally formed first shell side portion and a second shell side portion, wherein the length of the first shell side portion is shorter than the length of the second shell side portion, so that the articulated shaft portion and the articulated arm are arranged offset from each other, and the projections of the articulated shaft portion and the articulated arm do not overlap.

7. The pipe element joint according to claim 6, characterized in that: The outer articulated surface of the articulated shaft and the inner articulated surface of the articulated arm are oriented in the same direction, and the two articulated shafts and the corresponding two articulated arms are matched with each other in a staggered manner, so that the two outer articulated surfaces and the two inner articulated surfaces have the same radius and respectively cooperate to form the two circular structures; or the radius of the outer articulated surface of the articulated shaft is 0.1mm-5mm smaller than the radius of the inner articulated surface of the corresponding articulated arm.

8. The pipe element joint according to any one of claims 1 to 7, characterized in that: The fastening connection part has a mounting hole, and the fastening element includes a bolt and a nut. When the coupling unit is in a closed state, the mounting holes of the fastening connection parts of the two coupling units are penetrated by the bolt, and the nut is installed on the bolt. The position of the bolt on the nut is adjusted to adjust the fastening degree of the coupling unit.

9. The pipe element joint according to any one of claims 1 to 7, characterized in that: The pipe element joint is a groove joint, a plain end pipe joint, a ring joint or a shoulder joint.

10. A coupling structure of a pipe element joint, characterized in that: include: At least two coupling units, each of which comprises a housing, an articulated connection portion and a fastening connection portion, wherein the articulated connection portion and the fastening connection portion are arranged at opposite ends of the housing, the two coupling units are arranged symmetrically, and the two articulated connection portions of the two coupling units have the same structure and are articulated to each other in opposite installation directions, Among them, the articulated connection part of each coupling unit includes an articulated shaft part and an articulated arm that are staggered. Among the two coupling units, the articulated shaft part of one coupling unit and the articulated arm of the other coupling unit cooperate with each other to form two articulated structures that are staggered with each other.

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