CN220382699U

CN220382699U - Pipe fitting connector

Info

Publication number: CN220382699U
Application number: CN202322053917.5U
Authority: CN
Inventors: 许杰; 郭玟; 胡宗海; 武立民
Original assignee: Xindiyuan Material Technology Shanghai Co ltd
Current assignee: Xindiyuan Material Technology Shanghai Co ltd
Priority date: 2023-08-01
Filing date: 2023-08-01
Publication date: 2024-01-23
Anticipated expiration: 2033-08-01

Abstract

The utility model discloses a pipe fitting connector, which comprises a first hoop section and a second hoop section which are butted along a first direction, wherein the first hoop section is provided with a first end and a second end which are opposite along a second direction, the second hoop section is provided with a third end and a fourth end which are opposite along the second direction, the first direction is perpendicular to the second direction, and the first end and the third end are detachably connected through a hinge structure; the second end and the fourth end are detachably connected through a pin joint structure, the pin joint structure comprises a first fastening lug, a second fastening lug and a fastener, the second end is provided with the first fastening lug, the fourth end is provided with the second fastening lug, and the first fastening lug and the second fastening lug are in butt joint locking along a first direction through the fastener. One end of the pipe fitting connector is detachably hinged, and the other end of the pipe fitting connector is detachably pinned, so that the connecting mode of the pipe fitting connector is simplified, the installation time is shortened, the installation efficiency is improved, and the problem that the pipe fitting connectors arranged side by side occupy a larger space is solved.

Description

Pipe fitting connector

Technical Field

The utility model relates to the technical field of pipe connection, in particular to a pipe connector.

Background

In the construction of indoor strong and weak current lines, in order to avoid cutting and damaging the lines and electric leakage accidents, it is often necessary to sleeve a threading pipe or a threading slot on the lines to protect the lines. On the other hand, in view of beautifying building walls, various wires and network buses in the building are developed from wall surface wiring into embedding threading pipes or threading grooves in the walls, and the wires are pre-wired according to construction drawings when the building walls are assembled and constructed, so that the threading pipes or threading grooves are required to be embedded in the wallboard casting production. In large-scale engineering construction projects, because of the complexity of the electrical wiring, a long line requires multiple wiring tubes or wiring channels to be spliced end to end.

In the prior art, chinese patent publication No. CN214176249U, named support and pipe connection structure, discloses a hoop which is formed by connecting two hoop sections, connecting parts are arranged at two ends of each hoop section, and the two hoop sections are connected relatively through the connecting parts to form a complete hoop. In this embodiment, the connecting portion on the staple bolt section is the lug structure, and after two staple bolt sections relative block, corresponding connecting portion also can dock, then is locking the connecting portion after dock through retaining member (such as bolt, screw, pin, rivet etc.) for two staple bolt sections form the complete staple bolt that encircles the sealing washer. According to the utility model, the connection between two adjacent sections of the wire pipes is realized through the anchor ear connected by the pin joint, and the connection mode is troublesome, long in time consumption and low in working efficiency. In the junction box with the side-by-side lines, since both ends of the anchor ear are connected by the pin, the side-by-side lines need to be provided with a sufficient distance to accommodate the two pin structures arranged side by side, which also makes the junction box have a larger size in the length or width direction. The terminal box pre-buried in the wall is the flat shape originally, and when the terminal box had great size in length or width direction, building material such as concreting was the building material and the contact area of terminal box was bigger, and the contact surface of terminal box bears bigger pressure, warp more easily.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, a pipe fitting connector is troublesome to install, long in time consumption and low in efficiency in the butt joint process of a threading pipe or a threading groove, and a junction box is easy to deform due to the large occupied space of the pipe fitting connector.

In order to solve the above problems, the present utility model discloses a pipe connector, comprising a first hoop section and a second hoop section butted along a first direction, the first hoop section having a first end and a second end opposite along a second direction, the second hoop section having a third end and a fourth end opposite along the second direction, the first direction being perpendicular to the second direction, wherein the first end and the third end are detachably connected by a hinge structure; the second end and the fourth end are detachably connected through a pin joint structure, the pin joint structure comprises a first fastening lug, a second fastening lug and a fastener, the second end is provided with the first fastening lug, the fourth end is provided with the second fastening lug, and the first fastening lug and the second fastening lug are in butt joint locking along a first direction through the fastener.

By adopting the technical scheme, one end of the pipe fitting connector is connected through the detachable hinge structure, and the other end of the pipe fitting connector is connected through the detachable pin joint structure, so that the connecting mode of the pipe fitting connector is simplified, the installation time is shortened, the installation efficiency is improved, and the problem that the junction box is easy to deform due to the fact that the occupied space of the pipe fitting connectors arranged side by side is large is solved.

According to another embodiment of the utility model, the hinge structure comprises a hinge shaft extending in a third direction and a hinge part detachably connected with the hinge shaft, the hinge part comprises a through hole extending in the third direction, a slit for the hinge shaft to be inserted into the through hole is formed in the peripheral wall of the through hole, and the third direction is perpendicular to the first direction and the second direction respectively.

According to another embodiment of the present utility model, the second end to the first end are defined as a fourth direction, the projection of the slit along the third direction is an opening, and an included angle between a connecting line of the head end and the tail end of the opening and the fourth direction is greater than or equal to 0 degree and less than 45 degrees.

According to another embodiment of the utility model, the projection of the through hole along the third direction is an arc, the length of the connecting line is 7/10-1 times of the diameter of the hinge shaft, and the diameter of the arc is 7/10-1 times of the diameter of the hinge shaft.

According to another specific embodiment of the utility model, the hinge part is further provided with a first limiting pit, and the hinge shaft is further provided with a first limiting block matched and embedded with the first limiting pit, and the first limiting block is in butt joint with the first limiting pit along a first direction and used for limiting the movement of the hinge shaft in the third direction.

According to another embodiment of the utility model, the through holes are formed by a plurality of through hole units which are distributed in parallel and at intervals along the third direction, and the first limiting pits are positioned between two adjacent through hole units.

According to another embodiment of the utility model, the hinge shaft is fixedly connected to the first end via a stopper, the hinge portion is fixedly connected to the third end, the sixth direction is defined from the second hoop section to the first hoop section along the first direction, and the peripheral wall of the through hole is recessed from the slit along the sixth direction.

According to another embodiment of the utility model, the hinge shaft is fixedly connected to the third end by a stopper, the hinge portion is fixedly connected to the first end, the fifth direction is defined from the first hoop section to the second hoop section along the first direction, and the peripheral wall of the through hole is recessed from the slit along the fifth direction.

According to another embodiment of the utility model, the first stopper is engaged with the first stopper recess.

According to another embodiment of the utility model, the two ends of the hinge part along the third direction are respectively provided with a guiding part for guiding the first end to be in butt joint with the third end.

According to another embodiment of the utility model, the guide portions are each provided with guide surfaces facing in the third direction, the fifth direction being defined from the first hoop section to the second hoop section, and the distance between the oppositely arranged guide surfaces in the third direction gradually decreasing in the fifth direction.

According to another embodiment of the utility model, the maximum length of the hinge structure is smaller than the maximum length of the pin joint structure in the second direction.

According to another embodiment of the present utility model, the pipe connector comprises a locking display part, wherein the first fastening lug and the second fastening lug are respectively perpendicular to the first direction, the locking display part comprises a display column extending along the first direction and a display perforation matched with the display column, one of the display column and the display perforation is arranged on the first fastening lug, the other of the display column and the display perforation is arranged on the second fastening lug, and when the pipe connector is in a locked state, the display column passes through the display perforation along the first direction and protrudes from the display perforation; the display post does not protrude from the display aperture when the tubular connector is not in the locked in place condition.

According to another embodiment of the utility model, the display perforations are also covered with a penetrable membrane, and the display posts do not puncture the penetrable membrane when the pipe connector is not locked in place; the display post breaks through the penetrable membrane when the tube connector is in a locked in place condition.

According to another specific embodiment of the utility model, the fourth end is further provided with a second limiting pit, the second end is further provided with a second limiting block matched and embedded with the second limiting pit, and the second limiting block is in butt joint with the second limiting pit along the first direction and used for limiting the second end to move in the third direction.

According to another embodiment of the utility model, the first fastening lug is provided with a first through hole for the passage of a fastening element; the second fastening lug is provided with a second through hole, and the second through hole is provided with internal threads for being connected with a fastening piece; the fastener is for threaded connection with the second through hole through the first through hole to connect the second end and the fourth end.

According to another specific embodiment of the utility model, a scribing assembly is arranged on the outer wall of the first hoop section or the second hoop section and used for scribing the surface of the pipe fitting to be connected at a preset interval, the scribing assembly comprises a limit baffle and a scribing part, and the limit baffle and the scribing part are oppositely arranged along a third direction and are convexly arranged relative to the outer wall of the first hoop section or the second hoop section; the scribing assembly is positioned at an alignment scribing position, the limit baffle is abutted against the connecting end part of the pipe fitting to be connected along a third direction so as to position the pipe fitting to be connected in the third direction, and the scribing part is used for scribing an alignment reference line on the pipe fitting; the distance between the limit baffle and the scribing part in the third direction is a preset interval.

According to another embodiment of the utility model, the pipe connector further comprises a sealing ring for sleeving on the pipe to be connected, wherein the edge of the sealing ring is positioned at a position corresponding to the position of the alignment reference line.

According to another embodiment of the present utility model, the protruding height of the scribing portion is smaller than the protruding height of the limit shield.

According to another embodiment of the utility model, the second anchor ear section is arranged on the ground, the first anchor ear section is arranged above the second anchor ear section along the first direction, and the limit baffle and the scribing part are arranged on the outer wall of the first anchor ear section; the first hoop section is provided with a first side face, the first side face is arranged on one side of the first hoop section along a third direction, and the first side face extends along the first direction to form a limit baffle; the scribing portion is a tip.

According to another embodiment of the utility model, the tips have a plurality and are spaced apart along the second direction.

According to another embodiment of the utility model, the projections are arranged at least two rows apart in the third direction.

According to another embodiment of the utility model, the scribing part is a scribing plate, the outer edge of the scribing plate is provided with a sharp part for scribing an alignment reference line on the pipe fitting, and the scribing plate is parallel to the limit baffle.

According to another embodiment of the utility model, the second hoop section is configured to be disposed on the ground, the first hoop section is disposed above the second hoop section along the first direction, and the limit stop and the score plate are disposed at a fourth end of the second hoop section and extend along the second direction.

According to another embodiment of the utility model, the scoring plate is provided with at least two spaced apart along the third direction.

Drawings

The utility model is described in further detail below with reference to the attached drawings and detailed description:

FIG. 1 is a perspective view of a prior art pipe connector;

FIG. 2 is a second perspective view of a prior art pipe connector;

FIG. 3 is a perspective view of a pipe coupling according to one embodiment of the present utility model;

FIG. 4 is a second perspective view of a pipe coupling according to one embodiment of the present utility model;

fig. 5 is a perspective view of a first staple segment of a tubular connector according to one embodiment of the present utility model;

FIG. 6 is a second perspective view of a first hoop section of a pipe connector according to one embodiment of the present utility model;

FIG. 7 is a third perspective view of a first staple segment of a tubular connector according to one embodiment of the present utility model;

fig. 8 is a perspective view of a second staple segment of a tubular connector according to one embodiment of the present utility model;

fig. 9 is a left side view of a second staple segment of a tubular connector of one embodiment provided by the present utility model;

FIG. 10 is a top view of a second staple segment of a tubular connector according to one embodiment of the present utility model;

FIG. 11 is a cross-sectional view of a second staple segment of a tubular connector of one embodiment provided by the present utility model;

FIG. 12 is an enlarged view of the hinge of FIG. 11 provided by the present utility model;

FIG. 13 is a perspective view of a schematic installation of a pipe connector and a threading groove according to one embodiment of the present utility model;

FIG. 14 is a perspective view of the tubular connector of FIG. 13 provided by the present utility model;

FIG. 15 is a second perspective view of a schematic installation of a pipe connector and a threading slot according to one embodiment of the present utility model;

FIG. 16 is a perspective view of a schematic installation of a pipe connector and a threading groove according to one embodiment of the present utility model provided side-by-side;

FIG. 17 is a perspective view of a scoring assembly of a pipe connector according to one embodiment of the present utility model;

FIG. 18 is a second perspective view of the scoring assembly of the pipe connector of one embodiment provided by the present utility model;

fig. 19 is a perspective view of a score line assembly of a pipe connector according to another embodiment of the present utility model.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples. While the description of the utility model will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the utility model described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the utility model. The following description contains many specific details for the purpose of providing a thorough understanding of the present utility model. The utility model may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.

The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "provided", "configured", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

In the construction of indoor strong and weak current lines, in order to avoid cutting and damaging the lines and electric leakage accidents, it is often necessary to sleeve a threading pipe or a threading slot on the lines to protect the lines. On the other hand, in view of beautifying building walls, various wires and network buses in the building are developed from wall surface wiring into embedding threading pipes or threading grooves in the walls, and the wires are pre-wired according to construction drawings when the building walls are assembled and constructed, so that the threading pipes or threading grooves are required to be embedded in the wallboard casting production. In the construction project of large-scale engineering, because electric wiring is complicated, longer circuit needs a plurality of threading pipes or threading grooves to link to each other in proper order and splice, in order to guarantee that longer circuit has good waterproof nature in order to leak water, electric leakage scheduling problem, the pipe fitting connector needs sealing connection adjacent threading pipe or threading groove.

In general, when the number of lines is small, a threading pipe, which is a pipe having a circular cross-sectional shape, may be used; when the number of lines is large, a threading groove can be used, wherein the threading groove is elliptical in cross section shape or is irregularly shaped formed by sequentially connecting an arc, a straight line, an arc and a straight line. In other possible embodiments of the present application, the wire-penetrating groove may be any one of a polygon or an irregular ring composed of a curve and a curve, a curve and a straight line, and a straight line.

Correspondingly, the cross-section shape of the pipe fitting connector used when the threading pipe is connected with the threading pipe is round, and is adapted to the cross-section shape of the threading pipe; the cross section of the pipe connector used when the threading groove is connected with the threading groove is elliptical or irregular, and is adapted to the cross section of the threading groove.

In the prior art, a pipe connector 1 (shown in fig. 1 and 2) having an irregular cross-section formed by sequentially connecting an arc, a straight line, an arc, and a straight line, and a threading groove 7 (shown in fig. 13, 15, and 16) having an irregular cross-section formed by sequentially connecting an arc, a straight line, an arc, and a straight line are described in detail.

Referring to fig. 1 to 2, the prior art provides a pipe connector 1 comprising an upper hoop section 11 and a lower hoop section 12 butted together in a first direction a, the upper hoop section 11 having one end 111 opposite to the other end 112 in a second direction B, one end 111 of the upper hoop section 11 being provided with a fastening lug 113 and the other end 112 being provided with a fastening lug 114. The lower hoop section 12 has one end 121 opposite to the other end 122 in the second direction B, the one end 121 of the lower hoop section 12 being provided with a fastening lug 123, the other end 122 of the lower hoop section 12 being provided with a fastening lug 124. The first direction a is perpendicular to the second direction B.

Each fastening lug is provided with a connecting through hole along a first direction A, and the connecting through holes of the fastening lugs 113 of the upper hoop section 11 are correspondingly arranged with the connecting through holes of the fastening lugs 123 of the lower hoop section 12; the connecting through holes of the fastening lugs 114 of the upper hoop section 11 are correspondingly arranged with the connecting through holes of the fastening lugs 124 of the lower hoop section 12; the fastening lugs 113 and 123, 114 and 124 are fastened and connected by two fasteners, respectively, so that the pipe connector 1 can be fastened and connected to the abutting ends of the adjacent wire-penetrating grooves.

Referring to fig. 1, the outer side wall of the fastening lug 114 at the other end 112 of the upper hoop section 11 is provided with a raised stripe 118, and the outer side wall of the fastening lug 124 at the other end 122 of the lower hoop section 12 is provided with a raised stripe 128. Referring to fig. 2, two raised stripes 117 are provided on the outer sidewall of the fastening lug 113 at one end 111 of the upper hoop section 11 and two raised stripes 127 are provided on the outer sidewall of the fastening lug 123 at one end 121 of the lower hoop section 12. During installation, fastening lugs which need to be butted on the upper hoop section 11 and the lower hoop section 12 can be rapidly and accurately identified through the number of the identification raised stripes, and installation and use of the upper hoop section 11 and the lower hoop section 12 are facilitated. Specifically, the other end 112 provided with one raised stripe 118 on the upper hoop section 11 is butted with the other end 122 provided with one raised stripe 128 on the lower hoop section 12, the one end 111 provided with two raised stripes 117 on the upper hoop section 11 is butted with the one end 121 provided with two raised stripes 127 on the lower hoop section 12, and errors are prevented when the upper hoop section 11 and the lower hoop section 12 are butted.

In the prior art, even if the protruding stripes are arranged to accurately identify the upper hoop section 11 and the lower hoop section 12, the two ends of the upper hoop section 11 and the lower hoop section 12 are in pin joint structures, and the fastening lugs with the same shapes are arranged, so that time is wasted when the butt joint ends of the upper hoop section 11 and the lower hoop section 12 are distinguished.

In the prior art, when the constructor uses the pipe connector 1 to install and connect the threading slot, it is first confirmed that the raised stripe 118 of the upper hoop section 11 corresponds to the raised stripe 128 of the lower hoop section 12, and the raised stripe 117 of the upper hoop section 11 corresponds to the raised stripe 127 of the lower hoop section 12. Next, the upper hoop section 11 is butted against the lower hoop section 12. The fastening lugs 113 and 123, 114 and 124 are then fastened by two fasteners, respectively, so that the two ends of the pipe connector 1 are locked.

When the fastening lugs provided correspondingly are connected by the fastening members, the constructor cannot install the pipe connector 1 in such a manner that one end of the pipe connector 1 is locked once again and the other end of the pipe connector 1 is locked once again. Specifically, the operator cannot dock the pipe connector 1 in such a manner that the tightening tab 113 and the tightening tab 123 are locked once again, and the tightening tab 114 and the tightening tab 124 are locked once again. Alternatively, the operator cannot take a way of once again locking the fastening lugs 113 and 123 after once locking the fastening lugs 114 and 124. If such a mounting manner is adopted, the locking force of one end of the pipe connector 1 locked for the first time is larger, and the locking force of the other end of the pipe connector 1 locked for the second time is smaller under the reaction force of the wire penetrating groove, so that the stress of the two ends of the pipe connector 1 is different, and the effect of sealing and connecting the pipe connector 1 with the adjacent wire penetrating groove is further affected.

Thus, the constructor can only take to connect one end and the other end of the pipe connector 1 alternately in the unlocked state until one end and the other end of the pipe connector 1 are locked, striving to make the both ends of the pipe connector 1 uniformly stressed. Illustratively, one end of the pipe connector 1 is first connected, but not locked; the other end of the pipe connector 1 is connected again, and the unlocked state is maintained. Then, after repeating the above steps one or more times, one end of the pipe connector 1 is locked, and the other end of the pipe connector 1 is locked.

By adopting the technical scheme of the prior art, the fastening lugs at the two ends of the upper hoop section 11 and the lower hoop section 12 after being in butt joint are respectively and correspondingly connected for a plurality of times through the fastening pieces and then are locked, so that the installation is troublesome, the time consumption is long and the efficiency is low. In addition, since both ends of the pipe fitting connector 1 are of a pin joint structure, that is, fastening lugs are provided, in a pipe system provided with side-by-side lines, it is necessary to reserve enough space for the pipe fitting connectors arranged side-by-side, which also makes the junction box have a larger size in the length or width direction, and the contact surface of the building material and the junction box receives a larger pressure when building materials such as concrete are poured, and the junction box is easier to deform.

To solve the above-described problems, referring to fig. 3 to 16, one embodiment of the present utility model provides a pipe coupling 2.

Referring to fig. 3 and 4, the pipe connector 2 comprises a first hoop section 21 and a second hoop section 22 that are butted together in a first direction a, which in this embodiment is also a vertical direction, along which the first hoop section 21 is located above the second hoop section 22.

The first hoop section 21 has first and second ends 211, 212 opposite in a second direction B, and the second hoop section 22 has third and fourth ends 221, 222 opposite in the second direction B, which in this embodiment is the length direction of the first and second hoop sections 21, 22, the first and second hoop sections 21, 22 extending in the second direction B. The first direction a is perpendicular to the second direction B.

Wherein the first end 211 and the third end 221 are detachably connected through the hinge structure 3; the second end 212 and the fourth end 222 are detachably connected by a pin joint structure 4, the pin joint structure 4 comprises a first fastening lug 41, a second fastening lug 42 and a fastener, the second end 212 is provided with the first fastening lug 41, the fourth end 222 is provided with the second fastening lug 42, and the first fastening lug 41 and the second fastening lug 42 are in butt locking along a first direction A by the fastener.

In the present embodiment, one end of the pipe connector 2 is detachably connected by the hinge structure 3, and the other end is detachably connected by the pin structure 4. By adopting the technical scheme, when a constructor connects the butt joint ends of the adjacent wire penetrating grooves 7 (shown in fig. 13, 15 and 16), the hinge structure 3 of the pipe connector 2 is connected, and then the other section of pin joint structure 4 is locked and connected at one time through a fastener. Compared with the pipe connector 1 provided in the prior art, the pipe connector 2 provided in the embodiment simplifies the installation and connection mode, saves the installation time and improves the installation efficiency. In addition, compared with the pin joint structure 4, the hinge structure 3 extending along the third direction C has a larger stress area, so that the pipe connector 2 is stressed more uniformly in the locked state, and has a better sealing effect.

On the other hand, in connection with fig. 11, the pin joint structure 4, due to the provision of the first fastening lug 41 and the second fastening lug 42, has a dimension H4 of the pin joint structure 4 in the second direction B that is significantly larger than a dimension H3 of the hinge structure 3 in the second direction B. Referring to fig. 16, when the threading grooves 7 are disposed side by side (as shown in fig. 13, 15 and 16), the hinge structures 3 of the pipe connectors 2 are disposed adjacently along the arrangement direction of the threading grooves 7 (as shown in fig. 13, 15 and 16), so that the space occupied by the threading grooves 7 disposed side by side (as shown in fig. 13, 15 and 16) and the pipe connectors 2 is small. Further, since the threading grooves 7 (shown in fig. 13, 15 and 16) arranged side by side occupy a small space, the size of the junction box in the length direction or the width direction is also reduced, the contact area of the junction box and the building material is reduced, and the bearing capacity is larger, so that the junction box is not easy to deform. The problem that the junction box is easy to deform due to the fact that the wire through grooves 7 (shown in fig. 13, 15 and 16) arranged side by side occupy a large space is solved.

Moreover, compared with the prior art, the embodiment provided by the utility model can realize the installation of the pipe connector 2 by only one fastener, thereby saving extra parts, reducing manufacturing materials and manufacturing cost, conforming to the national 'double carbon' strategy, being beneficial to guiding the innovation of green technology and realizing the aims of environmental protection and low carbon.

In some possible embodiments provided by the present utility model, referring to fig. 5 to 12, in the pipe coupling 2, the hinge structure 3 includes a hinge shaft 31 (shown in fig. 5 to 7) extending in the third direction C and a hinge portion 32 (shown in fig. 8 to 12) detachably connected to the hinge shaft 31. Referring to fig. 12 in combination with fig. 8, the hinge portion 32 includes a through hole 321 extending in the third direction C, and a slit 322 (shown in fig. 8) is provided in a peripheral wall of the through hole 321 for inserting the hinge shaft 31 (shown in fig. 5 to 7) into the through hole 321. The third direction C is perpendicular to the first direction a and the second direction B, respectively. In the present embodiment, the third direction C is also the width direction of the first hoop section 21 and the second hoop section 22.

By adopting the technical scheme, in the pipe fitting connector 2, the hinge shaft 31 can be quickly and conveniently embedded into the slit 322 of the through hole 321 of the hinge part 32, so that the installation time is saved, and the installation efficiency is improved.

In some other possible embodiments of the present utility model, referring to fig. 11 and 12 in combination with fig. 8, the slit 322 (as shown in fig. 8) is projected as an opening 323 along the third direction C, the direction D is defined from the second end 212 to the first end 211, and the angle α between the straight line SW of the head end S and the tail end W of the opening 323 and the fourth direction D is greater than or equal to 0 degrees and less than 45 degrees.

In this embodiment, the angle α between the straight line SW of the head end S and the tail end W and the fourth direction D includes: an angle α2 between the straight line SW of the head end S2 and the tail end W and the fourth direction D along the fifth direction E, and an angle α1 between the straight line SW of the head end S1 and the tail end W and the fourth direction D along the sixth direction F.

In the fifth direction E, when the range of the included angle α2 between the straight line connecting the head end S2 and the tail end W and the fourth direction D is greater than or equal to 0 degrees and less than 45 degrees, that is, the arc connecting line 324 formed by the head end S2 and the tail end W is long, the opening is small, and the opening position is close to the main body portion of the second hoop section 22 along the seventh direction G, in this case, the hinge shaft 31 is inconvenient to install on the hinge portion 32, and the installation difficulty is high. The direction from the third end 221 to the fourth end 222 of the second hoop section 22 is defined as a seventh direction G.

Next, an embodiment will be described with an angle α1 between the straight line connecting the head end S1 and the tail end W along the sixth direction F and the fourth direction D.

Illustratively, referring to fig. 12 and 6, when the inner diameter R2 of the hinge 32 is matched with the outer diameter R1 of the hinge shaft 31, i.e., when the inner diameter R2 of the hinge 32 is equal to or slightly greater than the outer diameter R1 of the hinge shaft 31, the connection of the hinge 32 to the hinge shaft 31 is most stable.

When the inner diameter R2 of the hinge part 32 is equal to the outer diameter R1 of the hinge shaft 31, the position of the head end S1 should be at most D' in the counterclockwise direction when the hinge shaft 31 is intended to be mounted in the hinge part 32, otherwise the hinge shaft 31 cannot be fitted into the hinge part 32, and the angle α1 is equal to 0 degrees. Since the inner diameter R2 of the hinge portion 32 is equal to the outer diameter R1 of the hinge shaft 31 and both are composed of a hard material such as an alloy material, there may be a problem in that it is difficult to engage at the time of installation. Thus, the included angle α1 is preferably greater than 0 degrees.

When the inner diameter R2 of the hinge portion 32 is equal to the outer diameter R1 of the hinge portion 31, in order to hook the hinge portion 32 with the hinge portion 31, the position of the head end S1 should be infinitely close to the stress point Z of the hinge portion 32 and the hinge portion 31 in the clockwise direction, and when the head end S1 is located at the stress point Z, the angle α1 is equal to 45 degrees, and at this time, the hinge portion 31 cannot be stably hooked with the hinge portion 32. Therefore, when the position of the head end S1 approaches the stress point Z infinitely along the clockwise direction, the included angle alpha 1 is smaller than 45 degrees.

In this embodiment, the larger the angle α between the straight line SW and the fourth direction D, the smaller the technical difficulty of assembling the hinge shaft 31 into the hinge portion 32, that is, the larger the reserved slit 322 (as shown in fig. 8) of the hinge portion 32, the easier the constructor can assemble the hinge shaft 31 into the reserved slit 322 of the hinge portion 32.

For example, referring to fig. 12 and 6, when the inner diameter R2 of the hinge portion 32 is greater than the outer diameter R1 of the hinge shaft 31, the straight line SW between the position of the leading end S and the position of the trailing end W is equal to or slightly greater than the outer diameter of the hinge shaft 31, so that the hinge shaft 31 can smoothly enter the hinge portion 32 along the slit 322 (as shown in fig. 8), and the included angle α can be set according to the actual diameters of the hinge shaft 31 and the hinge portion 32, which is not limited in the present utility model.

In some other possible embodiments provided by the present utility model, referring to fig. 12, the projection of the through hole 321 of the hinge portion 32 along the third direction C is an arc 324, the length of the connecting line SW is 7/10 to 1 times the diameter of the hinge shaft 31, and the diameter of the arc 324 is 7/10 to 1 times the diameter of the hinge shaft 31.

The ratio of the length of the wire SW to the diameter of the hinge shaft 31 reflects the technical difficulty of fitting the hinge shaft 31 into the hinge portion 32 and whether the hinge shaft 31 and the hinge portion 32 can be stably connected to each other to some extent.

Illustratively, the length of the wire SW is 4mm, the diameter of the hinge shaft 31 is 5mm, and the diameter of the arc 324 is 4mm; as another example, the length of the wire SW is 3mm, the diameter of the hinge shaft 31 is 4mm, and the diameter of the circular arc 324 is 3.9mm.

In some possible embodiments, the inner diameter of the hinge 32 is 5mm, the arcuate length of the force bearing point Z to the head end S is 2mm, and the arcuate length of the force bearing point Z to the tail end W is 2mm. The outer diameter of the hinge shaft 31 is 4.8mm so that the hinge shaft 31 and the hinge portion 32 can be stably connected, preventing the hinge structure 3 from being broken beyond its stress limit in the locked state.

In some other possible embodiments provided by the present utility model, referring to fig. 8 and 10, the hinge portion 32 is further provided with a first limiting recess 333. Referring to fig. 7, the hinge shaft 31 is further provided with a first limiting block 331 matching and jogged with the first limiting pit 333, and the first limiting block 331 is abutted with the first limiting pit 333 along the first direction a for limiting the movement of the hinge shaft 31 in the third direction C. Specifically, in the present embodiment, the hinge shaft 31 is located on the first end 211, and thus the first limiting recess 333 and the first limiting block 331 serve to limit the first end 211 to move in the third direction C. In other possible embodiments not shown in the drawings, the hinge shaft is located on the third end 221 and the hinge part is located on the first end 211, so the first limiting recess 333 and the first limiting block 331 serve to limit the movement of the third end 221 in the third direction C.

By adopting the above technical scheme, the first limiting block 331 and the first limiting pit 333 can limit the first end 211 of the first hoop section 21 and the third end 221 of the second hoop section 22 in the third direction C, so as to prevent the first end 211 and the third end 221 from being installed in dislocation in the third direction C. On the other hand, the first limiting block 331 and the first limiting pit 333 are arranged to make the first end 211 and the third end 221 more convenient during installation, and specifically, the first end 211 and the third end 221 can be quickly and accurately installed as long as the first limiting block 331 and the first limiting pit 333 are aligned to be installed. In addition, the first limiting recess 333 and the first limiting block 331 are used to limit the first end 211 to move in the third direction C.

In other possible embodiments of the present utility model, referring to fig. 8, the first limiting recesses 333 are provided in plurality, and the plurality of first limiting recesses 333 are spaced apart along the third direction C. Illustratively, the first spacing pockets 333, 334 are spaced apart along the third direction C. In accordance therewith, referring to fig. 7, a plurality of first stoppers 331 are provided, and the plurality of first stoppers 331 are disposed at intervals along the third direction C. The first limiting blocks 331, 332 are exemplarily disposed at intervals along the third direction C.

By adopting the above technical scheme, a plurality of first limiting blocks 331 and first limiting pits 333 are respectively and correspondingly engaged with each other, and illustratively, the first limiting blocks 331 are engaged with the first limiting pits 333, and the first limiting blocks 332 are butted with the first limiting pits 334, so that when the first end 211 and the third end 221 are connected, the stress can be dispersed in the third direction C, and the stress of one end of the hinge structure 3 of the pipe connector 2 is uniform. On the other hand, the plurality of first stoppers 331 and the first stopper recesses 333 can limit the first ends 211 and 221 of the first and second hoop sections 21 and 22 in the third direction C, preventing the first ends 211 and 221 from being installed in a dislocation in the third direction C. On the other hand, the arrangement of the plurality of first limiting blocks 331 and the first limiting recesses 333 makes the first end 211 and the third end 221 more convenient and faster in installation, and in particular, accurate installation of the first end 211 and the third end 221 can be realized as long as the plurality of first limiting blocks 331 and the first limiting recesses 333 are aligned.

In addition, the hinge portion 32 on the third end 221 does not need to be provided with a larger size along the second direction B than the third end 221 without the first end 211 and the first limiting recess 333 of the first limiting stopper 331, so that the hinge portion 32 is stably hooked with the hinge shaft 31. Specifically, referring to fig. 8 in combination with fig. 10 and 11, the first end 211 and the third end 221 are configured to be respectively and correspondingly engaged with each other by the plurality of first limiting blocks 331 and the first limiting recesses 333, so that the direct butt joint of the first end 211 and the third end 221 is realized, and the dimension H3 of the hinge structure 3 along the second direction B is shortened, so that the occupied space of the threading grooves 7 (shown in fig. 13, 15 and 16) arranged side by side is small, correspondingly, the dimension of the junction box in the length direction or the width direction is also reduced, and the contact area of the junction box and the building material is reduced, so that the junction box is not easy to deform.

In other possible embodiments provided by the present utility model, a plurality of limiting blocks are arranged on the first end 211 at intervals along the third direction C, and a plurality of limiting pits are arranged on the third end 221 at intervals.

In some other possible embodiments provided by the present utility model, referring to fig. 8 and 12, the through hole 321 is composed of a plurality of through hole units 3211 spaced apart from each other in parallel along the third direction C, and the first limiting recess 333 is located between two adjacent through hole units 3211. That is, one complete through hole 321 is divided into a plurality of through hole units 3211 by the first limiting depression 333.

With the above technical solution, the through hole 321 is used for placing the hinge shaft 31, so as to realize the hinge of the hinge shaft 31 and the hinge portion 32. The through hole 321 is provided with a first limiting pit 333, and correspondingly, the hinge shaft 31 is provided with a first limiting block, and the through hole 321 realizes the hinging of the first end 211 of the first hoop section 21 and the third end 221 of the second hoop section 22 and simultaneously plays a limiting role in the butt joint of the first end 211 and the third end 221. In addition, the stress of the hinge shaft 31 and the hinge part 32 can be dispersed by dividing one complete through hole 321 into a plurality of through hole units 3211, so that the stress of the hinge structure 3 is uniform.

In some other possible embodiments of the present utility model, referring to fig. 7 in combination with fig. 5 and 6, the hinge shaft 31 is fixedly connected to the first end 211 through the first limiting block 331. Referring to fig. 8 to 12, the hinge 32 is fixedly connected to the third end 221. In other words, the hinge shaft 31 is integrally formed with the first end 211, and the hinge portion 32 is integrally formed with the third end 221. I.e. the first hoop section 21 is integrally formed. The first direction a is defined from the second hoop section 22 to the first hoop section 21 as a sixth direction F, and the peripheral wall of the through hole 321 is recessed from the slit 322 in the sixth direction F.

By adopting the above technical scheme, the articulated shaft 31 is fixedly connected to the first end 211, the articulated portion 32 is fixedly connected to the third end 221, so that the arrangement of the articulated shaft 31 and the articulated portion 32 is firmer, and when the pipe connector 2 is in a locking state, the articulation of the articulated shaft 31 and the articulated portion 32 is firmer, and the problems of breakage, stretch-breaking and the like of the articulated structure 3 do not need to be worried about. Meanwhile, the parts and the die sinking cost for each part are saved; the smaller size of the hinge structure 3 provided at one end of the pipe connector 2 is also ensured, reducing the space occupation of the pipe connector.

On the other hand, referring to fig. 12, the peripheral wall of the through hole 321 is recessed from the slit 322 in the sixth direction F, that is, the opening 322 of the through hole 321 is downward, and the inner wall of the through hole 321 has a limiting effect in the first direction a on the hinge shaft 321, which makes the hinge structure of the hinge shaft 31 and the hinge portion 32 as detachable connection more stable, and avoids the separation of the two when connected. In other words, the first and second hoop sections 21, 22 are arranged in the fifth direction E, the first hoop section 21 being above the second hoop section 22, locking and unlocking of the pipe connector 2 is achieved by rotating the first hoop section 21. Specifically, after aligning the connection positions of the first hoop section 21 and the second hoop section 22, the constructor can rotate the first hoop section 21 to connect the hinge structure 3 to lock the pipe connector, or can rotate the first hoop section 21 to separate the hinge structure 3 to unlock the pipe connector. The opening 322 of the through hole 321 is downward, and the hinge shaft 31 of the first hoop section 21 is effectively prevented from being separated from the hinge portion 32 of the second hoop section 22 during the rotational mounting.

Furthermore, the pipe connector 2 provided by the utility model needs to be pre-buried in a wall or underground, so that the pipe connector is designed into a detachable installation mode, and particularly one end of the pipe connector 2 is in a detachable hinged connection mode. If it is provided in a fixed articulated manner, it may not provide enough space for quick installation due to the close distance of the pipeline, thus increasing installation difficulty. The other end of the pipe fitting connector 2 is designed into a detachable pin joint structure 4, so that the pipe fitting connector 2 can be quickly installed and locked, and the effects of simplicity and convenience in installation and stability are achieved.

Referring to fig. 8-12, wherein fig. 10 is a top view of second hoop section 22, fig. 11 is a cross-sectional view of fig. 10 taken along section PQ, and fig. 12 is an enlarged view of hinge 32 of fig. 11.

Specifically, in the present embodiment, the hinge portion 32 is a hinge hooking portion, and in combination with fig. 11 and 12, the projection of the hinge portion 32 in the third direction is an arc 324, which is concave from the slit 322 in the sixth direction F, and the hinge shaft 31 is engaged with the arc, so that the hinge shaft 31 can be hooked by the hinge portion 32.

Referring to fig. 13 to 15, in the present embodiment, when the pipe connector 2 is installed, the hinge shaft 31 of the hinge structure 3 is connected to the hinge portion 32, specifically, the hinge shaft 31 of the first end 211 of the first hoop section 21 is disposed below the hinge portion 32 of the third end 221 of the second hoop section 22, and the hinge shaft 31 is moved in the sixth direction F, that is, in the first direction a toward the direction approaching the hinge portion 32, so that the hinge shaft 31 is embedded in the hinge portion 32.

In other words, referring to fig. 13, the first hoop section 21 is located above the second hoop section 22, the hinge shaft 31 is fixedly connected to the first end 211 of the first hoop section 21, the hinge portion 32 is fixedly connected to the third end 221 of the second hoop section 22, and when the hinge structure 3 is connected, the hinge shaft 31 is located below the hinge portion 32, so that the pipe connector 2 is in a locked state. When the pipe coupling 2 is in the locked state, the hinge shaft 31 generates a force in the sixth direction F and the hinge portion 32 generates a force in the fifth direction E. Referring to fig. 13 and 15, a first direction a is defined, a direction from the first hoop section 21 to the second hoop section 22 is a fifth direction E, and a direction from the second hoop section 22 to the first hoop section 21 is a sixth direction F. The fifth direction E and the sixth direction F are opposite directions. Referring to fig. 12, in a cross-sectional view, a position of the hinge shaft 31 and the hinge portion 32 where the force is generated is a Z point shown in fig. 12 along a projection in the third direction C.

In some possible embodiments provided by the present utility model, referring to fig. 5, the upper surface of the hinge shaft 31 in the first direction a is in the same plane as the lower surface of the first fastening lug 41 in the first direction a. As a reference line LL ' shown in fig. 5, the reference line LL ' extends in the second direction B, and an upper surface of the hinge shaft 31 in the first direction a and a lower surface of the first fastening lug 41 in the first direction a are on the reference line LL '. That is, in the first direction a, the height of the upper surface of the hinge shaft 31 to the outer wall 210 of the first hoop section 21 is equal to the height of the lower surface of the first fastening lug 41 to the outer wall 210 of the first hoop section 21. Referring to fig. 13, it can also be considered that the upper surface of the hinge shaft 31 in the first direction a is in the same plane as the upper surface of the second fastening lug 42 in the first direction a, on the reference line LL', as shown in fig. 13. That is, the height of the upper surface of the hinge shaft 31 to the outer wall 210 of the first hoop section 21 in the first direction a is equal to the height of the upper surface of the second fastening lug 42 to the outer wall 210 of the first hoop section 21 in the first direction a.

By adopting the technical scheme, when the pipe fitting connector 2 is connected and is in a locking state, the stress of the pipe fitting connector 2 is uniform in the hinge structure 3 and the pin joint structure 4, and the pipe fitting connector 2 is stressed uniformly. Specifically, when the pipe connector 2 is connected and in the locked state, the hinge shaft 31 in the hinge structure 3 is stressed in the sixth direction F, and the hinge portion 32 is stressed in the fifth direction E; under the connection action of the fasteners, the first fastening lugs 41 in the pin joint structure 4 are stressed in the fifth direction E, the second fastening lugs 42 are stressed in the sixth direction F, the stressing of the pipe connector 2 is more uniform, and no substantial pressure is generated on the threading groove 7 (as shown in fig. 13, 15 and 16).

Compared with the prior art, the two ends of the pipe fitting connector 1 are of pin joint structures, the upper hoop section 11 and the lower hoop section 12 are connected through the fasteners, the stress at the two ends of the upper hoop section 11 and the lower hoop section 12 are stressed along the first direction A in opposite directions, and the principle is the same as the stress direction of the pin joint structure 4 of the pipe fitting connector 2 in the prior art. When the abutting ends of the adjacent pipe fittings or threading grooves are locked by the pipe fitting connector 1, the pipe fittings or threading grooves bear the locking acting force of the pipe fitting connector 1, and the pipe fittings or threading grooves are easy to deform under pressure.

In other possible embodiments, not shown in the drawings, the hinge shaft is fixedly connected to the third end through the first limiting block, and the hinge portion is fixedly connected to the first end. In other words, the hinge portion is integrally formed with the first end, and the hinge shaft is integrally formed with the third end. Along defining a fifth direction from the first hoop section to the second hoop section, the peripheral wall of the through hole is recessed from the slit along the fifth direction, i.e., the opening of the through hole is upward. In this embodiment, the first staple bolt section is located the top of second staple bolt section, and the articulated shaft of third end imbeds in the articulated portion of first end for hinge structure connects firmly. In this embodiment, the same technical effects of arranging the hinge shaft at the first end and the hinge portion at the third end as described above can also be achieved, and detailed description thereof will be omitted.

In some other possible embodiments provided by the present utility model, referring to fig. 13, fig. 13 shows a perspective view of the pipe coupling 2 in an open state. I.e. the first and second hoop sections 21, 22 of the pipe connector 2 are ready for hinged connection. In the present embodiment provided by the utility model, the pipe connector 2 is connected or opened by rotating the first hoop section 21 in the first direction a.

Specifically, referring to fig. 13, when the first hoop section 21 and the second hoop section 22 are assembled and connected, the second hoop section 22 is first placed in the second direction B in an extending manner, and the second hoop section 22 is assembled below the abutting end of the adjacent wire slot 7 in the sixth direction F. The first hoop section 21 is placed along the eighth direction I, and then is butted with the second hoop section 22 along the seventh direction G, and when butted, accurate positioning and mounting are performed according to the guidance of the guide portion 5 (fig. 13 is only a schematic view of an embodiment, the guide portion 5 is not shown, and can be understood in conjunction with fig. 8 to 10), according to the first limiting pit 333 and the first limiting block 331.

In some embodiments, the angle of rotation of the hinge shaft 31 of the first hoop section 21 and the hinge 32 of the second hoop section 22 ranges from 0 degrees to 180 degrees.

In some embodiments, the angle formed by the first and second hoop sections 21, 22 in the seventh and eighth directions G, I is not limited when the pipe connector 2 is installed for the single wire slot 7. In other embodiments, if the included angle formed by the seventh direction G and the eighth direction I is an obtuse angle, that is, the included angle formed by the extending direction of the first hoop section 21 from the first end to the second end and the extending direction of the second hoop section 22 from the third end to the fourth end is an obtuse angle, when the first hoop section 21 and the second hoop section 22 are butt-mounted, the space occupied by the first hoop section 21 in the fourth direction D is larger.

In other possible embodiments, when the pipe connectors 2 are mounted to the side-by-side wire grooves 7, and the spacing between the side-by-side wire grooves 7 is limited, the difficulty of abutting the first hoop section 21 with the second hoop section 22 is increased, and even the first hoop section 21 may not abut the second hoop section 22 at all. Thus, when the first hoop section 21 and the second hoop section 22 are mounted, the angle formed by the hinge shaft 31 of the first hoop section 21 and the hinge portion 32 of the second hoop section 22 is easiest to abut when the mounting angle of the first and second hoop sections is greater than 30 degrees and less than 45 degrees. And the space occupied by the hinge structure 3 is minimum when the junction box and the building material are in butt joint, the contact surface of the junction box and the building material has the best bearing capacity, and the junction box is least prone to deformation.

In some other possible embodiments provided by the present utility model, the first limiting block 331 is matched with the first limiting recess 333. The first limiting block 331 is adapted to the shape and the size of the first limiting pit 333, so that the first end 211 of the first hoop section 21 and the third end 221 of the second hoop section 22 are perfectly adapted, and the first end 211 and the third end 221 are connected.

In other possible embodiments, a sealing member is provided between the abutting end of the adjacent threading groove 7 (as shown in fig. 13, 15 and 16) and the pipe fitting connector 2, the sealing member is made of soft material, and after the pipe fitting connector 2 is locked, the abutting end of the threading groove 7 and the pipe fitting connector 2 are in sealing connection through the sealing member, so that the effects of preventing building materials from seeping into the interior of the threading groove 7 are achieved.

In some other possible embodiments provided by the present utility model, referring to fig. 3, 4 and 8, the hinge 32 is provided with guide portions 5 at both ends in the third direction C. Referring to fig. 8, at both ends of the third end 221, a first guide portion 51 and a second guide portion 52 are provided, respectively, in the third direction C. The guide 5 (the first guide 51 and the second guide 52) extends in a sixth direction F, that is, the first direction a extends toward the first hoop section 21, and the guide 5 is used for guiding the first end 211 to be butt-mounted with the third end 221.

Specifically, when the first end 211 and the third end 221 are butt-mounted, since the hinge portion 32 of the third end 221 has the shape of the circular arc 324 shown in fig. 12, it is difficult for a constructor to hinge the hinge shaft 31 and the hinge portion 32 in place at one time. After the guide portion 5 is disposed on the third end 221 along the third direction C, the guide portion 5 can guide the constructor to install along the fifth direction E when the constructor butt-installs the first end 211 and the third end 221, and the probability that the hinge shaft 31 and the hinge portion 32 can be installed in place at one time is increased.

In addition, the guiding part 5 can also guide the constructor to put the first end 211 at a proper position in the third direction C, that is, the guiding part 5 arranged along the third direction C on the third end 221 can limit the installation position of the first end 211 in the third direction C, so that the probability of once installation in place is increased. And the guiding part 5 is matched with the limiting part (namely the first limiting pit, the first limiting block, the second limiting pit and the second limiting block) and the mounting and positioning part, so that a constructor can accurately mount the first hoop section 21 and the second hoop section 22.

In some other possible embodiments provided by the present utility model, referring to fig. 8, the guide portions 5 are provided with guide surfaces facing each other in the third direction C, respectively. The first guide surface 511 of the first guide portion 51 is disposed opposite to the second guide surface 521 of the second guide portion 52. Referring to fig. 9, in the first direction a, the first guide portion 51 and the second guide portion 52 are each inclined. In the fifth direction E, the distance d of the first guide portion 51 and the second guide portion 52 in the third direction C gradually increases. That is, the dimensions d of the oppositely disposed guiding surfaces (i.e., the first guiding surface 511 and the second guiding surface 521) of the guiding portion 5 in the third direction C gradually decrease, so that the first end 211 and the third end 221 are more conveniently butt-mounted along the fifth direction E.

In some possible embodiments, the first guide 51 and the second guide 52 are equal in height in the first direction a. The height of the first guide portion 51 and the second guide portion 52 in the first direction a is 1/4 to 1/2 (including the case of equal to 1/4 and 1/2) of the height of the first hoop section 21 in the first direction a, so that the first guide portion 51 and the second guide portion 52 can smoothly guide the installation of the first end 211 of the first hoop section 21.

In some other possible embodiments provided by the utility model, with reference to fig. 11, the maximum length H3 of the hinge structure 3 is smaller than the maximum length H4 of the pin joint structure 4 in the second direction B.

By adopting the above technical scheme, one end of the hinge structure 3 of the pipe connector 2 occupies a smaller space, so that the threading grooves 7 (shown in fig. 13, 15 and 16) arranged side by side occupy a smaller space, and accordingly, the size of the junction box in the length direction or the width direction is also reduced, the contact area of the junction box and the building material is reduced, and the junction box is not easy to deform. The problem that the wiring grooves 7 (shown in fig. 13, 15 and 16) arranged side by side occupy a large space is solved, and the problem that the junction box is easy to deform is solved. Meanwhile, the other end of the pipe fitting connector 2 is connected by using the pin joint structure 4, and the butt joint installation stability and stress uniformity of the first hoop section 21 and the second hoop section 22 can be ensured.

In some other possible embodiments provided by the present utility model, referring to fig. 4, 7, 8 and 14, the pipe connector 2 includes a locking display 6. The first fastening tab 41 and the second fastening tab 42 are disposed perpendicular to the first direction a, respectively. The locking display 6 includes a display post 62 extending in the first direction a and a display aperture 61 mated with the display post 62. For example, in the locked state, the display post 62 is perpendicular to the first and second fastening lugs 41 and 42.

One of the display post 62 and the display aperture 61 is provided to the first fastening tab 41 and the other is provided to the second fastening tab 42. Illustratively, referring to fig. 4, 7, 8 and 14, posts 62 are shown disposed on the second fastening lugs 42, and perforations 61 are shown disposed on the first fastening lugs 41. In other embodiments, a display post 62 is provided on the first fastening tab 41 and a display aperture 61 is provided on the second fastening tab 42 (not shown).

When the pipe coupling 2 is in the locked-in-place state, the display post 62 passes through the display aperture 61 in the first direction a and protrudes from the display aperture 61. The display post 62 does not protrude from the display aperture 61 when the pipe connector 2 is not in the locked in position.

By adopting the technical scheme, a constructor can rapidly judge whether the pin joint structure 4 of the pipe connector 2 is installed in place or not through the locking display part 6, so that the accuracy of installation in place is improved, the time of installation is saved, and the efficiency of installation is improved. If the display post 62 passes through the display aperture 61 in the first direction a and protrudes from the display aperture 61, the operator is prompted that the pipe connector 2 is in a locked in place state; if the display post 62 does not protrude from the display aperture 61, the operator is prompted that the pipe connector 2 is in an unlocked state.

In other possible embodiments provided by the present utility model, the display perforations 61 are further covered with a penetrable membrane (not shown) through which the display posts 62 do not puncture when the tubular connector 2 is not locked in place; the display post 62 breaks through a penetrable membrane (not shown) when the pipe coupling 2 is in a locked in place condition.

By adopting the technical scheme, a constructor can judge whether the pin joint structure 4 of the pipe connector 2 is installed in place or not through whether the penetrable film is penetrated or not. This solution is more convenient for the constructor to judge whether the pin joint structure 4 of the pipe connector 2 is mounted in place than the solution in which the display post 62 passes through the display perforation 61 in the first direction a and protrudes from the display perforation 61.

In some possible embodiments of the utility model, referring to fig. 14, 17 and 18, the locking display 6 comprises a display post 62 and a display aperture 61 cooperating with the display post 62; or the locking display 6 includes two display posts 62 and two display perforations 61 that mate with the display posts 62.

Illustratively, for example, referring to fig. 14, a locking display 6 is provided in the pipe connector 2.

As another example, referring to fig. 17 and 18, in the pipe connector 2, the locking display 6 includes two display posts 62 and two display perforations 61 that mate with the display posts 62. In the utility model, the number of the locking display parts 6 is not limited, and a constructor can rapidly judge whether the pin joint structure 4 of the pipe connector 2 is installed in place or not through the locking display parts 6, so that the accuracy of installation in place is improved, the installation time is saved, and the installation efficiency is improved.

In some possible embodiments of the present utility model, referring to fig. 14, 17 and 18, the post 62 is shown as being cylindrical or frustoconical or prismatic; the perforations 61 are shown as circular through holes or polygonal through holes.

For example, referring to fig. 14, for example, the display post 62 in the lock display portion 6 is cylindrical, the display perforation 61 is a circular through hole or the display perforation 61 is a circular through hole covered with a penetrable film.

For another example, referring to fig. 17 and 18, the display post 62 in the lock display portion 6 has a truncated cone shape, and the diameter of the display post 62 gradually increases in the fifth direction E, and the display perforation 61 is a circular through hole or the display perforation 61 is a circular through hole covered with a penetrable film.

Alternatively, not shown in the drawings, the locking display 6 includes two display posts 62 and two display perforations 61 that are mated with the display posts 62. One of the display posts 62 is in a truncated cone shape, and the display perforations 61 matched with the display posts 62 are round through holes or the display perforations 61 are round through holes covered with a penetrable film; the other display post 62 is prismatic (e.g. triangular prism or quadrangular), and the display through hole 61 matching with the display post 62 is polygonal (e.g. triangular prism matching with the triangular prism display post 62 or quadrangular matching with the quadrangular prism display post 62), or the display through hole 61 is polygonal covered with a penetrable film.

In the present utility model, the shape of the locking display portion 6 is not limited as long as the shape of the display post 62 is adapted to the shape of the display perforation 61, and the constructor can judge whether the pin joint structure 4 of the pipe connector 2 is in place or not through the locking display portion 6. When the pin joint structure 4 of the pipe coupling 2 is mounted in place, the display post 62 can pass through the display aperture 61 in the first direction a and protrude from the display aperture 61 or the display post 62 can pierce a penetrable film covering the display aperture 61 in the first direction a. Otherwise, the pin structure 4 of the pipe connector 2 is not mounted in place.

In some other possible embodiments provided by the present utility model, referring to fig. 8, the fourth end 222 is further provided with a second limiting recess 223. Referring to fig. 7, the second end 212 is further provided with a second limiting block 213 matched and embedded with the second limiting pit 223, and the second limiting block 213 is abutted with the second limiting pit 223 along the first direction a for limiting the movement of the second end in the third direction.

That is, referring to fig. 7, the pipe connector 2 is provided with a mounting location portion at one end of the pin joint structure 4, the mounting location portion including the second limiting recess 223 and the second limiting block 213.

The second end 212 of the first hoop section 21 is provided with a second limiting block 213, the fourth end 222 of the second hoop section 22 is provided with a second limiting pit 223, and the second limiting pit 223 is adapted to the size and shape of the second limiting block 213. When the pin joint structure 4 is installed in a butt joint manner, that is, when the first fastening lug 41 and the second fastening lug 42 are installed in a butt joint manner through the fastening piece, the second limiting block 213 and the second limiting pit 223 are firstly in butt joint with each other, so that the problems of unstable connection, poor sealing performance and the like of one end of the pin joint structure 4 of the pipe connector 2 caused by dislocation of the second end 212 and the fourth end 222 along the third direction C are prevented.

In other embodiments, a second limiting pit is provided at the second end 212 of the first hoop section 21, and a second limiting block is provided at the fourth end 222 of the second hoop section 22, where the second limiting pit is adapted to the size and shape of the second limiting block.

(not shown in the drawings)

In other embodiments, along the third direction C, one or more second limiting pits are provided, and correspondingly, one or more second limiting blocks are provided, but the number, the position, the size and the shape of the second limiting pits and the second limiting blocks are all set correspondingly. The utility model does not limit the number, the position, the size and the shape of the installation positioning parts (namely the second limiting block and the second limiting pit), as long as the accurate butt joint installation of the second end 212 of the first hoop section 21 and the fourth end 222 of the second hoop section 22 can be realized.

In some other possible embodiments provided by the present utility model, referring to fig. 3 and 4, the first fastening lug 41 is provided with a first through hole 411 for the fastener to pass through; referring to fig. 8 and 10, the second fastening lug 42 is provided with a second through hole 421, and the second through hole 421 is provided with internal threads for connection with a fastener. A fastener is used to threadably couple the second end 212 and the fourth end 222 through the first throughbore 411 and the second throughbore 421.

By adopting the technical scheme, the first fastening lug 41 and the second fastening lug 42 are connected through the fastening piece, so that the second end 212 and the fourth end 222 can be fastened and connected, the connection tightness of the pipe connector 2 is ensured, and the pipe connector 2 and the threading groove 7 are matched with the sealing piece arranged therebetween, so that the pipe connector 2 can seal the butt joint ends of the adjacent threading grooves 7. Furthermore, one end of the connecting structure 3 of the pipe connector 2 is connected in advance, and one end of the pin joint structure 4 is connected through a fastener, so that the connection mode is simple, convenient and quick.

In some other possible embodiments provided by the present utility model, referring to fig. 17 to 19, a scribing assembly is provided on the outer wall of the first hoop section 21 or the second hoop section 22, for scribing the surface of the pipe 7 to be connected at a preset interval, and the scribing assembly includes a limit stop 86 and a scribing portion 87, where the limit stop 86 and the scribing portion 87 are disposed opposite to each other along the third direction C and are disposed to protrude with respect to the outer wall of the first hoop section 21 or the second hoop section 22. Specifically, the limit stop 86 and the scribing portion 87 are disposed in parallel along the third direction C, and the limit stop 86 and the scribing portion 87 extend along the first direction a and are disposed in a protruding manner on the outer wall of the first hoop section 21 or the second hoop section 22.

The scribing assembly is positioned at an alignment scribing position, the limit baffle 86 abuts against the connecting end part of the pipe fitting 7 to be connected along the third direction C so as to position the pipe fitting 7 to be connected along the third direction C, and the scribing part 87 is used for scribing an alignment reference line on the pipe fitting 7 to be connected; the distance between the limit stopper 86 and the scribing portion 87 in the third direction C is a predetermined distance. The alignment scribing position is a position where the scribing assembly performs alignment scribing on the pipe fitting 7 to be connected relative to the pipe fitting 7 to be connected. When the connecting ends of the pipes 7 to be connected are a plurality of pipes 7 connected to each other to form a pipe system, every two adjacent pipes are butted to each other to achieve one end of connection.

That is, the pipe connector is provided with a scribing assembly, and the scribing assembly comprises a limit baffle 86 and a scribing portion 87, which are matched with each other to scribe an alignment reference line on the pipe 7. Specifically, when the alignment reference line is drawn on the pipe member 7 by the cooperation of the limit stop 86 and the scribing portion 87, one connecting end portion of the pipe member 7 is abutted against the limit stop 86, and the alignment reference line is drawn on the pipe member 7 by the scribing portion 87 by moving the pipe member 7 or the first hoop section 21 or the second hoop section 22 provided with the limit stop 86 and the scribing portion 87. In the scribing process, one connecting end of the pipe fitting 7 is always abutted against the limit baffle 86, so that the positions of the pipe fitting 7 or the first hoop section 21 or the second hoop section 22 in the third direction C are always consistent, and the position is not changed, and therefore the scribing part 87 is ensured to scribe a straight alignment reference line on the pipe fitting 7 instead of a skew twisted line. And, referring to fig. 13, 17 and 19, a distance y1 of the connecting end portion of the pipe member 7 to the third direction C of the alignment reference line is equal to a distance of the limit stopper 86 to the scribing portion 87 in the third direction C is a preset distance y21.

In some other possible embodiments of the utility model, the pipe connector further comprises a sealing ring (not shown) for sleeving on the pipe 7 to be connected, the edge of the sealing ring being located at a position corresponding to the position of the alignment reference line of the pipe 7 to be connected. I.e. the sealing ring edge is in alignment with the alignment reference line at the position of the pipe element 7 to be connected.

In some other possible embodiments provided by the present utility model, the protruding height of the scribing portion 87 is smaller than the protruding height of the limit stop 86. In the first direction a, the protruding height of the scribing portion 87 is smaller than the protruding height of the limit stopper 86.

In some other possible embodiments provided by the present utility model, referring to fig. 17 and 18 in combination with fig. 13 and 16, the second hoop section 22 is configured to be disposed on the ground, the first hoop section 21 is disposed above the second hoop section 22 along the first direction a, the limit stop 86 and the scribing portion 87 are disposed on the outer wall of the first hoop section 21, wherein the first hoop section 21 is provided with a first side 80, the first side 80 is disposed on one side of the first hoop section 21 along the third direction C, and the first side 80 extends along the sixth direction F to form the limit stop 81. The scribe line portion is a tip 83.

In the present embodiment, the tip 83 extends along the sixth direction F and is disposed on the outer top wall 210 of the first hoop section 21 for marking an alignment reference line Z (as shown in fig. 13) on a pipe (such as the wire slot 7 shown in fig. 16), the tip 83 extends along the sixth direction F, and the height H0 of the tip 83 along the sixth direction F does not exceed the height H1 of the limit stop 81 along the sixth direction F.

In this embodiment, referring to fig. 17 and 18, the tip 83 is tapered to facilitate the marking of the alignment reference line Z by the tip 83 on the tube.

It should be noted that when the score line is pointed, the score line assembly can only be provided on the first hoop section. Because engineering needs, the second staple bolt section need with ground contact arrangement, and the scribing component is the structure that the protrusion set up on the outer wall of staple bolt section, this can lead to the unable ground that pastes of second staple bolt section.

Specifically, in the present embodiment, the first side 80 of the first hoop section 21 extends along the sixth direction F to form the limit stop 81, and the second side, that is, the side opposite to the first side 80 along the third direction C, extends along the sixth direction F to form the second side 82. The height H1 of the limit baffle 81 along the first direction a is higher than the height H2 of the second side 82, so that the abutting end of the wire slot 7 is conveniently clamped against the higher limit baffle 81.

The outer wall 210 of the first hoop section 21 (illustratively, the outer top wall of the first hoop section 21 as shown in fig. 17) is provided with a tip 83, and the height H0 of the tip 83 in the first direction a is higher than the height H2 of the second side edge and does not exceed the height H1 of the limit stop. The height H0 of the tip 83 is higher than the height H2 of the second side edge to facilitate scribing an alignment reference line Z (shown in fig. 13) on the wire chase 7. The height H0 of the tip 83 does not exceed the height H1 of the limit stop, so that the abutting end of the wire slot 7 is clamped against the higher limit stop 81.

With the above technical solution, the constructor clamps the butt end of the wire slot 7 against the higher limit baffle 81, and uses the tip 83 to mark the alignment reference line Z on the body of the wire slot 7 (as shown in fig. 13). The alignment reference line Z drawn by the tip 83 should be parallel to the abutting end of the trunking 7, and when the constructor installs the two trunking 7 and the pipe connector 2 in abutting connection, the alignment reference line Z plays a role in alignment, preventing the situation that the trunking 7 and the pipe connector 2 are installed askew and not installed in place.

In some other possible embodiments provided by the present utility model, the tips 83 are provided in plurality and spaced apart along the second direction B.

For example, referring to fig. 17 and 18, in the second direction B, the first and second tips 831 and 832 are spaced apart, and the first and second tips 831 and 832 are on the same straight line. When the first hoop section 21 is used to draw an alignment reference line Z (as shown in fig. 13) on the wire chase 7, if the alignment reference lines drawn by the first tip 831 and the second tip 832 coincide with each other, the alignment reference line Z drawn is accurate; if the first tip 831 and the second tip 832 respectively scribe an alignment reference line Z or the scribed alignment reference line Z is curved or skewed, the scribed alignment reference line Z is wrong and the alignment reference line Z needs to be scribed again on the wire chase 7.

In some other possible embodiments provided by the present utility model, the tips 83 are spaced apart by at least two rows along the third direction C, such that the tips 83 mark at least two alignment reference lines Z on a pipe (such as the wire chase 7 shown in fig. 13).

For example, referring to fig. 17 and 18, the first and second tips 831 and 832 are spaced apart in the second direction B and are in a straight line, i.e., the first and second tips 831 and 832 are disposed on a column, which is the first column. The third and fourth tips 833 and 834 are spaced apart along the second direction B and are in a straight line, i.e., the third and fourth tips 833 and 834 are disposed on a column, which is the second column. The straight line formed by the first tip 831 and the second tip 832 is parallel to the straight line formed by the third tip 833 and the fourth tip 834, i.e., the first column and the second column are arranged side by side, specifically, the first tip 831 and the second tip 832 are arranged side by side with the third tip 833 and the fourth tip 834. That is, along the third direction C, the first columns where the first and second tips 831 and 832 are located are spaced apart from the second columns where the third and fourth tips 833 and 834 are located.

When the first hoop section 21 is used to draw the alignment reference line Z (as shown in fig. 13) on the wire chase 7, if the alignment reference lines Z drawn by the first tip 831 and the second tip 832 overlap each other, the alignment reference lines Z drawn by the third tip 833 and the fourth tip 834 overlap each other, and the two alignment reference lines Z are parallel to each other, the drawn alignment reference line Z is accurate. If the alignment reference lines Z drawn by the first tip 831 and the second tip 832 do not overlap each other, or the alignment reference lines Z drawn by the third tip 833 and the fourth tip 834 do not overlap each other, the alignment reference line Z drawn is wrong, and the alignment reference line Z needs to be drawn again on the wire chase 7.

In other possible embodiments of the present utility model, the scribing portion 87 is a scribing plate 85, and the outer edge of the scribing plate 85 is provided with a sharp portion for scribing an alignment reference line on the pipe 7, and the scribing plate 85 is parallel to the limit stop 84.

In some possible embodiments, referring to fig. 19, the outer edge of the scoring plate 85 is provided with a sharp portion, which is a blade portion. In this embodiment the scoring plate 85 resembles a blade, i.e. the closer the scoring plate 85 is to the outer edge the smaller its thickness and the sharper it is, facilitating the drawing of an alignment reference line on the tube 7. In other possible embodiments, the sharp portion is a plurality of pointed projections to facilitate drawing an alignment reference line on the tubular member 7.

In some possible embodiments provided by the present utility model, the second hoop section 22 is configured to be disposed on the ground, the first hoop section 21 is disposed above the second hoop section 22 along the first direction a, and the stop 84 and the score plate 85 are disposed at the fourth end 222 of the second hoop section 22 and extend along the second direction B.

Specifically, referring to fig. 19, a limit baffle 84 and a scribing plate 85 are disposed on an outer wall of the second hoop section 22, the limit baffle 84 and the scribing plate 85 are disposed on the second fastening lug 42 along the fifth direction E, a plane on which the limit baffle 84 is disposed and a plane on which the scribing plate 85 is disposed are perpendicular to a plane on which the second hoop section 22 is disposed, wherein the limit baffle 84 is disposed on one side of the second fastening lug 42 along the third direction C, and the limit baffle 84 extends along the fifth direction E. The scoring plate 85 is arranged on the other side of the second fastening lug 42 in the third direction C, the scoring plate 85 extends in the fifth direction E, and the outer edge of the scoring plate 85 is provided with a sharp portion for scoring an alignment reference line on the tube 7. The height H5 of the limit stop 84 in the fifth direction E is higher than the height H6 of the scribing plate 85 in the fifth direction E.

Compared to the embodiment in which the limit stop 81 is provided on the outer top wall 210 of the first hoop section 21 and the tip 83 is provided as the scribing portion, the limit stop 84 and the scribing plate 85 provided in this embodiment are provided at the end portion (the fourth end 222 as shown in fig. 8) of the second hoop section 22, and the length thereof along the second direction B does not exceed the length of the second fastening lug 42, so that no additional space is occupied. And compared with the setting position of the tip 83, the setting position of the scribing plate 85 is shielded by the rib plate of the second fastening lug 42, so that the scribing plate is hidden, the scribing plate 85 is prevented from being touched to cause the scratch of staff during normal use, and the safety is improved.

In other possible embodiments, the outer wall of the first hoop section 21 is provided with a limit baffle and a scribing portion, the limit baffle and the scribing portion are disposed on the first fastening lug 41 along the sixth direction F, and a plane on which the limit baffle is disposed and a plane on which the scribing portion is disposed are perpendicular to a plane on which the first hoop section 21 is disposed, wherein the limit baffle is disposed on one side of the first fastening lug 41 along the third direction C, and the limit baffle extends along the sixth direction F.

The scribing part is a scribing plate, the scribing plate is arranged on the other side of the first fastening lug 41 along the third direction C, the scribing plate extends along the sixth direction F, the outer edge of the scribing plate is provided with a sharp part for scribing an alignment reference line on the pipe fitting 7, and the height of the limit baffle along the sixth direction F is higher than that of the scribing plate along the sixth direction F.

In some possible embodiments of the present utility model, the scribing plates 85 are provided at least two intervals along the third direction C. Referring to fig. 19, in the third direction C, the scribing plate 85 includes a first scribing plate 851 and a second scribing plate 852 arranged in parallel so that the pipe 7 can be scribed with two alignment reference lines at the same time. Wherein the first scoring plate 851 is disposed on the other side of the fastening tab, and the second scoring plate 852 is disposed near the other side of the fastening tab instead of being disposed on the fastening tab.

It should be noted that in pipe connectors provided with both a locking display and a scoring assembly, attention is paid to the positions of both. For example, when the first hoop section is provided with a display column and the second hoop section is provided with a display perforation, the scribing component can only be arranged on the first hoop section; and when the display perforation is arranged on the first hoop section and the display column is arranged on the second hoop section, the scribing component can only be arranged on the second hoop section. That is, the display perforation and scribing assembly cannot be located on the same staple segment. If the second scribing plate is arranged on the same hoop section, the position of the second scribing plate may cause that the display column cannot smoothly pass through the display perforation, and normal use of the locking display part is affected.

In the embodiment with the scribing part as the tip shown in fig. 17 and 18, how the alignment reference lines formed by the cooperation of the limit baffle and the scribing part determine whether the sealing ring is installed in place or not is explained. In some other possible embodiments provided by the present utility model, referring to fig. 13 and 17, the pipe connector 2 is used for connecting two butted pipes (such as the wire slot 7 shown in fig. 13), a sealing ring (not shown in the figure) is disposed between the butted ends of the two pipes and the pipe connector 2, the sealing ring is sleeved on the butted ends of the two pipes and is used for sealing and connecting the two pipes, and the dimension of the sealing ring along the third direction C is matched with the distance y2 (shown in fig. 17) between at least one row of tips 83 and the limit baffle 81 along the third direction C.

Specifically, referring to fig. 17, a distance y2 of the at least one row of tips 83 from the limit stop 81 in the third direction C includes: the distance y21 between the first tip 831 and the second tip 832 and the limit stop 81 in the third direction C; the third and fourth tips 833, 834 are spaced from the limit stop 81 by a distance y22 in the third direction C. In this embodiment, the sealing ring is annular and is used for sealing and connecting the butt ends of the two wire slots 7. Specifically, referring to fig. 13, two pipes (such as the wire grooves 7 shown in fig. 13) and a sealing ring (not shown in the figure) are assembled to the pipe connector 2, the butt ends of the two wire grooves 7 are connected, and the sealing ring is sleeved on the connected butt ends, that is, the inner wall of the sealing ring is in contact with the outer walls of the two wire grooves 7.

Referring to fig. 13, the alignment reference line Z is a reference line for assembling two pipes and a seal ring. Specifically, in the third direction C, the pipe is inserted into the sealing ring. In this embodiment, the side edges of the seal ring are all straight lines. And the edge of one side of the sealing ring is mutually aligned with one of the plurality of alignment reference lines Z, so that the pipe fitting and the sealing ring are installed in place.

That is, after the two pipe fittings and the seal ring are mounted in place, the distance from one side edge of the seal ring to the abutting end of the pipe fitting on the side in the third direction C is y1 (as shown in fig. 13), and the distance from the other side edge to the abutting end of the pipe fitting on the side in the third direction C is y1. The first and second tips 831 and 832 are spaced apart from the limit stop 81 by a distance y21 (shown in fig. 17) in the third direction C. The distance y21 can also be expressed as the distance of the abutting end of the pipe to the alignment reference line Z, using the tip 83 to scribe the alignment reference line on the pipe. In the present embodiment, the distance y1 is equal to the distance y21. I.e. the distance y21 is equal to the distance y1 (as shown in fig. 13) in the third direction C from one side edge of the sealing ring to the abutting end of the pipe fitting on that side, and is also equal to the distance y1 in the third direction C from the other side edge to the abutting end of the pipe fitting on that side. That is, both sides of the sealing ring are aligned with alignment reference lines Z drawn on the pipe member 7 by the first and second tips 831 and 832, respectively.

Meanwhile, the distance y22 between the third tip 833 and the fourth tip 834 and the limit stop 81 along the third direction C is greater than the distance y1 (as shown in fig. 13) between one side edge of the seal ring and the abutting end of the pipe fitting on the side along the third direction C, and is also greater than the distance y1 between the other side edge and the abutting end of the pipe fitting on the side along the third direction C, that is, y22 > y1. That is, the alignment reference lines Z drawn on the pipe 7 by the third and fourth tips 833 and 834 are not covered by the two sides of the sealing ring, and the alignment reference lines Z are exposed outside and parallel to the two sides of the sealing ring for checking whether the pipe connector is mounted in place.

If the edge of one side of the sealing ring is not aligned with one of the alignment reference lines Z, the pipe fitting and the sealing ring are not installed in place, and the installation positions of the pipe fitting and the sealing ring need to be readjusted. Referring to fig. 17, the length and width of the seal ring are adapted to the length and width of the inner ring of the pipe connector 2. The dimension of the sealing ring (not shown in the figures) in the third direction C, i.e. the width of the sealing ring, is adapted to the dimension of the pipe connector 2 in the third direction C. After the butt ends of the two wire grooves 7 are connected in a sealing mode through the sealing rings, the pipe connector 2 is connected through the hinge structure 3 and the pin joint structure 4, so that the pipe connector 2 is wrapped and tightly pressed on the outer wall of the sealing rings, sealing connection of the two pipe fittings is achieved, and sealing performance of the pipe connector is improved.

While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present utility model.

Claims

1. A pipe connector comprising first and second hoop sections butted in a first direction, the first hoop section having first and second ends opposite in a second direction, the second hoop section having third and fourth ends opposite in the second direction, the first direction being perpendicular to the second direction, wherein,

the first end and the third end are detachably connected through a hinge structure;

the second end and the fourth end are detachably connected through a pin joint structure, the pin joint structure comprises a first fastening lug, a second fastening lug and a fastener, the second end is provided with the first fastening lug, the fourth end is provided with the second fastening lug, and the first fastening lug and the second fastening lug are in butt joint locking along the first direction through the fastener.

2. A pipe fitting connector according to claim 1, wherein the hinge structure comprises a hinge shaft extending in a third direction and a hinge part detachably connected to the hinge shaft, the hinge part comprising a through hole extending in the third direction, a slit being provided in a peripheral wall of the through hole for the hinge shaft to fit into the through hole, the third direction being perpendicular to the first direction and the second direction, respectively.

3. The pipe coupling according to claim 2, wherein a fourth direction is defined from said second end to said first end, wherein a projection of said slit in said third direction is an opening, and wherein an angle between a line connecting a head end and a tail end of said opening and said fourth direction is in a range of 0 degrees or more and 45 degrees or less.

4. A pipe coupling according to claim 3, wherein the projection of said through hole in said third direction is an arc, the length of said connecting line is 7/10 to 1 times the diameter of said hinge shaft, and the diameter of said arc is 7/10 to 1 times the diameter of said hinge shaft.

5. A pipe fitting connector according to any one of claims 2 to 4, wherein the hinge portion is further provided with a first limit recess, and a first limit block fitted and engaged with the first limit recess is further provided on the hinge shaft, and the first limit block is abutted with the first limit recess along the first direction for limiting movement of the hinge shaft in the third direction.

6. A tubular connector as claimed in claim 5, wherein said through-holes are formed by a plurality of through-hole units spaced apart in parallel along said third direction, said first spacing pocket being located between two adjacent through-hole units.

7. The pipe fitting connector of claim 5, wherein the hinge shaft is fixedly connected to the first end via the first stopper, the hinge portion is fixedly connected to the third end, a sixth direction is defined from the second hoop section to the first hoop section in the first direction, and a peripheral wall of the through hole is recessed from the slit in the sixth direction.

8. The pipe fitting connector of claim 5, wherein the hinge shaft is fixedly connected to the third end via the first stopper, the hinge portion is fixedly connected to the first end, a fifth direction is defined from the first hoop section to the second hoop section along the first direction, and a peripheral wall of the through hole is recessed from the slit along the fifth direction.

9. A pipe connector as defined in claim 5, wherein the first stop block mates with the first stop recess.

10. A pipe coupling according to claim 2, wherein said hinge portions are provided with guide portions at respective ends in said third direction for guiding said first and third ends for mating installation.

11. A pipe coupling according to claim 10, wherein said guide portions are provided with guide surfaces facing each other in said third direction, defining a fifth direction from said first hoop section to said second hoop section, and wherein the distance between said oppositely disposed guide surfaces in said third direction decreases progressively in said fifth direction.

12. The tubular connector of claim 1, wherein a maximum length of the hinge structure is less than a maximum length of the pin structure in the second direction.

13. The pipe coupling according to claim 1, comprising a locking display, said first and second fastening lugs being perpendicular to said first direction, respectively, said locking display comprising a display post extending in said first direction and a display aperture cooperating with said display post, one of said display post and said display aperture being provided in said first fastening lug and the other being provided in said second fastening lug, wherein,

the display post passing through and protruding from the display aperture in the first direction when the tubular connector is in the locked in place state;

The display post does not protrude from the display aperture when the tubular connector is not in the locked in place condition.

14. The tubular connector of claim 13, wherein the display aperture is further covered with a penetrable membrane, the display post not being penetrable by the penetrable membrane when the tubular connector is not locked in place; the display post breaks through the penetrable membrane when the tube connector is in a locked in place state.

15. The pipe coupling according to claim 14, wherein said locking display includes one said display post and one said display aperture cooperating with said display post; or the locking display part comprises two display posts and two display perforations matched with the display posts.

16. A tubular connector as claimed in claim 15 wherein the display post is cylindrical or frustoconical or prismatic; the display perforations are circular through holes or polygonal through holes.

17. The pipe coupling according to claim 16, wherein said fourth end further comprises a second limiting recess, said second end further comprising a second stop block matingly engageable with said second limiting recess, said second stop block interfacing with said second limiting recess in said first direction for limiting movement of said second end in a third direction.

18. The pipe connector of claim 1, wherein the first fastening lug is provided with a first through hole for the fastener to pass through; the second fastening lug is provided with a second through hole, and the second through hole is provided with internal threads for being connected with the fastening piece;

the fastener is configured to threadably couple with the second through hole through the first through hole to couple the second end with the fourth end.

19. The pipe fitting connector according to claim 1, wherein a scribing assembly is arranged on the outer wall of the first hoop section or the second hoop section and is used for scribing the surface of the pipe fitting to be connected at a preset interval, the scribing assembly comprises a limit baffle and a scribing part, and the limit baffle and the scribing part are oppositely arranged along a third direction and are arranged in a protruding manner relative to the outer wall of the first hoop section or the second hoop section;

the scribing assembly is positioned at an alignment scribing position, the limit baffle is abutted against the connecting end part of the pipe fitting to be connected along the third direction so as to position the pipe fitting to be connected in the third direction, and the scribing part is used for scribing an alignment reference line on the pipe fitting; the distance between the limit baffle and the scribing part in the third direction is the preset distance.

20. The pipe coupling according to claim 19, further comprising a seal ring for engaging over said pipe to be coupled, said seal ring edge being positioned at a location of said pipe to be coupled corresponding to a location of said alignment reference line.

21. The pipe connector of claim 19, wherein the score line has a protrusion height that is less than a protrusion height of the limit stop.

22. The pipe connector of any one of claims 19-21, wherein the second hoop section is configured to be disposed on the ground, the first hoop section is disposed above the second hoop section in the first direction, and the limit stop and the score line are disposed on an outer wall of the first hoop section;

the first hoop section is provided with a first side face, the first side face is arranged on one side of the first hoop section along the third direction, and the first side face extends along the first direction to form the limit baffle; the scribing portion is a tip.

23. The tubular connector of claim 22, wherein the tip has a plurality and is spaced apart along the second direction.

24. The tubular connector of claim 23, wherein in the third direction, the tips are spaced apart by at least two rows.

25. A pipe connector according to any one of claims 19 to 21, wherein the score line is a score plate, the outer edge of the score plate being provided with a sharp portion for marking the alignment reference line on the pipe, the score plate being parallel to the limit stop.

26. The pipe connector of claim 25, wherein the second hoop section is configured to be disposed on the ground, the first hoop section is disposed above the second hoop section in the first direction, and the limit stop and the scoring plate are disposed at a fourth end of the second hoop section and extend in the second direction.

27. A pipe coupling according to claim 26, wherein said score plates are spaced apart at least two in said third direction.