Connection and segment device

Abstract

The present disclosure provides a connecting piece and a pipe piece device, and relates to the technical field of supporting equipment for engineering construction. Specifically, it comprises a body and an abutting part. The body comprises a bottom wall extending in a first direction, and first and second side walls arranged oppositely. The extension directions of the first and second side walls are the same as that of the bottom wall, and the body has an opening at a position away from the bottom wall. The abutting part is located outside the body and is arranged obliquely relative to the bottom wall. The abutting part is integrally formed with the body as an integral piece. The abutting part is provided with a mounting hole for communicating with a pipe piece connecting hole on a groove wall. According to the scheme of the present disclosure, the opening is arranged on the body, so that the fastener connected with the load such as a pipeline can pass through the opening into the interior of the body and be clamped therein, and the fastener can be moved in the first direction, achieving plug-and-play of the fastener. Moreover, the load connected by the fastener can be arranged at any position of the body, i.e., millimeter-level adjustment is achieved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of equipment for engineering construction, in particular to a connecting piece and a segment device. BACKGROUND

[0002] In the shield construction process, a channel is often arranged on the segment of the shield to carry a pipeline and other load, and how to design the channel matched with the segment is a problem to be solved. SUMMARY

[0003] The present disclosure provides a connecting piece and a segment device.

[0004] According to an aspect of the present disclosure, a connecting piece is provided, comprising a body and an abutting portion.

[0005] The body comprises a bottom wall extending along a first direction, and first and second side walls oppositely arranged and connected to the bottom wall, and the extending directions of the first and second side walls are the same as that of the bottom wall. The body has an opening at a position away from the bottom wall, which is used to allow a fastener to pass through the opening and enter the body, so as to connect the fastener with the body.

[0006] The abutting portion is located outside the body and connected to the bottom wall and / or the first side wall. The abutting portion is arranged obliquely relative to the bottom wall and is integrally formed with the body as a whole. When the bottom wall abuts against the segment, the abutting portion abuts against the groove wall of the mounting groove of the segment. The abutting portion is provided with a mounting hole for communicating with a segment connecting hole on the groove wall, so that the segment fastener can pass through the segment connecting hole and the mounting hole and be fixedly connected with the segment.

[0007] In an embodiment, the abutting portion has a first connector and a second connector at one end thereof towards the body, and the abutting portion is connected to the body through the first and second connectors, and a first gap is formed between the first and second connectors.

[0008] In an embodiment, the abutting portion comprises an abutting portion main body and a support body arranged obliquely relative to the abutting portion main body. The abutting portion main body is connected to the body, the first end of the support body is connected to the abutting portion main body, the second end of the support body is connected to the body, and at least part of the abutting portion main body is located on the side of the support body away from the body, and the mounting hole is arranged on the at least part of the abutting portion main body.

[0009] The support body constitutes the first connector, the part of the abutting portion main body between the body and the first end of the support body constitutes the second connector, and the gap between the abutting portion main body and the support body constitutes the first gap.

[0010] In an embodiment, the abutting portion main body and the second end of the support body are both connected to the first side wall.

[0011] In one embodiment, the abutting portion includes a first abutting body and a second abutting body parallel to the first abutting body, and a pad body between the first abutting body and the second abutting body, the first abutting body and the second abutting body are connected to the body, and the mounting hole penetrates the first abutting body, the second abutting body, and the pad body.

[0012] The first abutting body, the second abutting body, the pad body, and the body have a first gap therebetween, a portion of the first abutting body between the pad body and the body constitutes a first connecting body, and a portion of the second abutting body between the pad body and the body constitutes a second connecting body.

[0013] In one embodiment, an end of the first abutting body away from the body protrudes from the pad body, and an end of the second abutting body away from the body protrudes from the pad body.

[0014] In one embodiment, the first abutting body, the second abutting body, and the pad body are integrally formed as a unitary piece.

[0015] In one embodiment, the first thickness direction is the center line direction of the mounting hole, and the size of the abutting portion along the first thickness direction gradually decreases from the end close to the body to the end away from the body.

[0016] In one embodiment, the number of abutting portions is multiple, and the multiple abutting portions are arranged at intervals along the first direction.

[0017] In one embodiment, at least one of the multiple mounting holes of the multiple abutting portions is a cylindrical hole.

[0018] In one embodiment, the cross-sectional shape of the mounting hole is one of a circular shape, an elliptical shape, a cross shape, and a "U" shape, with a plane perpendicular to the center line of the mounting hole as the cross section.

[0019] In one embodiment, the bottom wall has a first extension protruding from the outer surface of the first side wall, and the first extension extends along the first direction.

[0020] The abutting portion is connected to the back surface of the opening away from the back surface of the bottom wall, and the abutting portion is located on the side of the first side wall away from the second side wall.

[0021] In one embodiment, the second thickness direction is perpendicular to the direction of the bottom wall, and the size of the first extension along the second thickness direction gradually decreases from the end close to the first side wall to the end away from the first side wall.

[0022] In one embodiment, the abutting portion is located on the side of the first side wall away from the second side wall.

[0023] The bottom wall has a second extension protruding from the outer surface of the second side wall, and the second extension extends along the first direction.

[0024] In an embodiment, the back surface of the bottom wall opposite to the opening has a first rough part for increasing surface roughness.

[0025] In an embodiment, the first rough part comprises a plurality of first micro-protrusions extending along a first direction, and the plurality of first micro-protrusions are arranged along a second direction perpendicular to the first side wall.

[0026] In an embodiment, the abutting part for abutting against the end surface of the groove wall has a second rough part for increasing surface roughness.

[0027] In an embodiment, the second rough part comprises a plurality of second micro-protrusions extending along a third direction, and the plurality of second micro-protrusions are arranged along a fourth direction perpendicular to the third direction and the center line direction of the mounting hole.

[0028] In an embodiment, the connecting member is an aluminum alloy connecting member composed of an aluminum alloy material.

[0029] In an embodiment, the mounting hole is used for passing a bolt in a segment fastener, and the abutting part is arranged at one end of the bolt used for connecting a nut in the segment fastener.

[0030] According to another aspect of the present disclosure, a segment device is provided, comprising a segment and a connecting member.

[0031] The segment has a mounting groove, and the groove wall of the mounting groove is provided with a segment connecting hole.

[0032] The connecting member comprises a body and an abutting part, the body comprises a bottom wall extending along a first direction, and oppositely arranged first and second side walls connected to the bottom wall, and the extending directions of the first and second side walls are the same as the extending direction of the bottom wall, the body has an opening opposite to the bottom wall, and the opening is used for allowing a fastener to pass through the opening into the body so as to connect the fastener with the body.

[0033] The abutting part is located outside the body, and the abutting part is connected to the bottom wall and / or the first side wall, the abutting part is arranged obliquely relative to the bottom wall, and the abutting part is integrally formed with the body as an integral piece, the abutting part is used for abutting against the groove wall of the mounting groove when the bottom wall abuts against the segment; the abutting part is provided with a mounting hole used for communicating with the segment connecting hole, so that the segment fastener can pass through the segment connecting hole and the mounting hole and be fixedly connected with the segment.

[0034] In an embodiment, one end of the abutting part towards the body has a first connecting body and a second connecting body, the abutting part is connected to the body through the first and second connecting bodies, and the first and second connecting bodies have a first gap therebetween.

[0035] In one embodiment, the abutting portion includes an abutting portion body and a support body disposed obliquely relative to the abutting portion body, the abutting portion body is connected to the body, a first end of the support body is connected to the abutting portion body, a second end of the support body is connected to the body, and at least part of the abutting portion body is located on a side of the support body away from the body, and the mounting hole is disposed on at least part of the abutting portion body.

[0036] The support body constitutes a first connecting body, the part of the abutting portion body between the body and the first end of the support body constitutes a second connecting body, and the gap between the abutting portion body and the support body constitutes a first gap.

[0037] In one embodiment, the abutting portion body and the second end of the support body are both connected to the first side wall.

[0038] In one embodiment, the abutting portion includes a first abutting body and a second abutting body parallel to the first abutting body, and a pad body located between the first abutting body and the second abutting body, the first abutting body and the second abutting body are both connected to the body, and the mounting hole penetrates the first abutting body, the second abutting body and the pad body.

[0039] And there is a first gap between the first abutting body, the second abutting body, the pad body and the body, the part of the first abutting body between the pad body and the body constitutes a first connecting body, and the part of the second abutting body between the pad body and the body constitutes a second connecting body.

[0040] In one embodiment, one end of the first abutting body away from the body protrudes from the pad body, and one end of the second abutting body away from the body protrudes from the pad body.

[0041] In one embodiment, the first abutting body, the second abutting body and the pad body are integrally formed as an integral piece.

[0042] In one embodiment, the first thickness direction is the center line direction of the mounting hole, and the size of the abutting portion along the first thickness direction gradually decreases from the end close to the body to the end away from the body.

[0043] In one embodiment, the number of abutting portions is multiple, and the multiple abutting portions are arranged at intervals along the first direction.

[0044] In one embodiment, at least one of the multiple mounting holes of the multiple abutting portions is a cylindrical hole.

[0045] In one embodiment, the cross-sectional shape of the mounting hole is one of a circular shape, an elliptical shape, a cross shape and a "U" shape, with a plane perpendicular to the center line of the mounting hole as the cross section.

[0046] In one embodiment, the bottom wall has a first extension protruding from the outer surface of the first side wall, and the first extension extends along the first direction.

[0047] The abutment portion is connected to the back surface of the bottom wall away from the opening, and is located on the side of the first side wall away from the second side wall.

[0048] In one embodiment, the second thickness direction is perpendicular to the bottom wall, and the size of the first extension portion along the second thickness direction gradually decreases from the end close to the first side wall to the end away from the first side wall.

[0049] In one embodiment, the abutment portion is located on the side of the first side wall away from the second side wall.

[0050] The bottom wall has a second extension portion protruding from the outer surface of the second side wall, and the second extension portion extends along the first direction.

[0051] In one embodiment, the back surface of the bottom wall away from the opening has a first rough portion for increasing surface roughness.

[0052] In one embodiment, the first rough portion includes a plurality of first micro-protrusions extending along the first direction, and the plurality of first micro-protrusions are arrayed along a second direction perpendicular to the first side wall.

[0053] In one embodiment, the abutment portion for abutting against the end surface of the groove wall has a second rough portion for increasing surface roughness.

[0054] In one embodiment, the second rough portion includes a plurality of second micro-protrusions extending along a third direction, and the plurality of second micro-protrusions are arrayed along a fourth direction, the third direction, the fourth direction, and the center line direction of the mounting hole being perpendicular to each other.

[0055] In one embodiment, the connecting member is an aluminum alloy connecting member composed of an aluminum alloy material.

[0056] In one embodiment, the bolt in the segment fastener passes through the mounting hole, and the abutment portion is arranged at one end of the nut connecting the segment fastener.

[0057] According to the scheme of the present disclosure, by arranging the abutting portion inclined to the bottom wall on the body of the connecting piece to adapt to the mounting groove of the pipe piece, when the connecting piece is mounted, the abutting portion is directly arranged in the mounting groove, and the mounting of the connecting piece is completed by fastening the two by the existing pipe piece connecting piece of the pipe piece, effectively solving the technical problems of low pre-buried precision and inconvenient later maintenance caused by pre-buried groove in the pre-buried groove process. And effectively solve the technical problems of groove installation failure and low stability after installation caused by multiple pre-buried sleeves not in the same plane in the pipe piece lapping process. By arranging the mounting hole communicating with the pipe piece connecting hole of the pipe piece on the abutting portion, when the connecting piece is mounted, the existing pipe piece fastener of the pipe piece is directly inserted through the pipe piece connecting hole and the mounting hole and fastened to realize the connection, effectively solving the technical problem of damaging the strength of the pipe piece caused by punching the pipe piece in the post-slot process. Moreover, the body and the abutting portion are arranged as an integral piece formed integrally in the embodiment of the present disclosure, which can improve the fatigue resistance of the connecting piece. By arranging the opening on the body, the fastener connected with the pipeline and the like can pass through the opening into the interior of the body and be clamped therein. By arranging the opening along the first direction A, the fastener can be moved in the first direction, thereby adjusting the position of the pipeline and the like, realizing the plug and play of the fastener, and the load bearing object connected with the fastener can be arranged at any position of the body, that is, millimeter-level adjustment is realized.

[0058] It should be understood that the content described in the summary section is not intended to limit the key or important features of the embodiments of the present disclosure, nor to limit the scope of the present disclosure. Other features of the present disclosure will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0059] The above and other features, advantages, and aspects of the embodiments of the present disclosure will become more apparent by describing in detail the following embodiments with reference to the attached drawings. In the drawings, the same or similar reference numerals refer to the same or similar elements, and:

[0060] Figure 1 is a structural schematic diagram of a connecting piece of an embodiment of the present disclosure;

[0061] Figure 2 is a structural schematic diagram of a connecting piece of an embodiment of the present disclosure;

[0062] Figure 3 is a structural schematic diagram of a connecting piece of an embodiment of the present disclosure;

[0063] Figure 4 is a structural schematic diagram of a connecting piece of an embodiment of the present disclosure;

[0064] Figure 5 is a structural schematic diagram of a connecting piece of an embodiment of the present disclosure;

[0065] Figure 6 is a structural schematic diagram of a connecting piece of an embodiment of the present disclosure;

[0066] Figure 7 is a structural schematic diagram of a connecting piece of an embodiment of the present disclosure;

[0067] Figure 8 is a structural schematic diagram of a connecting piece of an embodiment of the present disclosure;

[0068] Figure 9 is a structural schematic diagram of a connecting piece of an embodiment of the present disclosure;

[0069] Figure 10 is a structural schematic diagram of a connecting piece of an embodiment of the present disclosure;

[0070] Figure 11 is a structural schematic diagram of a pipe segment device of an embodiment of the present disclosure. DETAILED DESCRIPTION

[0071] Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, which include various details of the embodiments of the present disclosure to assist in understanding, and should be considered as merely exemplary. Thus, those of ordinary skill in the art will recognize various changes and modifications of the embodiments described herein, without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and structures are omitted in the following description for clarity and conciseness.

[0072] In the process of a shield tunnel of related technology, a channel is often set in the construction of the shield tunnel to connect a pipeline and other load-bearing objects. The setting mode of the channel generally adopts:

[0073] 1. Pre-buried channel, which refers to pre-buried channels in the wall of the shield tunnel, and then pouring concrete and the like to fix the pre-buried channels in the concrete. However, the pre-buried channel is affected by pre-buried precision and is inconvenient for later maintenance.

[0074] 2. Pre-embedded sleeves refer to sleeves pre-installed on the segments of a shield tunnel. After the segments are installed, the tunnel channel is connected to the pre-embedded sleeves. The principle is to connect the various scattered construction points into an arc. However, the low installation accuracy of pre-embedded sleeves is detrimental to on-site installation. Furthermore, if a single sleeve fails to meet the pre-embedding standards, the entire ring of sleeves is scrapped. For example, using pre-embedded sleeves, with a ring circumference (i.e., a ring structure formed by multiple segments) of 15.3m, 22 sleeves are pre-embedded. The installation error of one ring of segments is 8mm, while the allowable error for a single sleeve is 2mm. Addressing these two installation errors requires a significant amount of time, and the cost can be several times higher than that of the tunnel channel itself. If three sleeves are misaligned, the tunnel channel cannot be installed. Additionally, it is difficult to ensure that the pre-embedded sleeves are perpendicular to the arc surface, causing the bolts of the tunnel channel to be misaligned after installation, preventing a secure connection with the sleeves.

[0075] 3. Post-installed channels require drilling holes in the tunnel segments and then connecting the channels to the holes in the segments using bolts or other fasteners. However, drilling holes in the tunnel segments of shield tunnels will damage the strength of the segments, and there are regulations prohibiting drilling holes in the tunnel segments.

[0076] Using pre-embedded channels and pre-embedded sleeves requires pre-embedding operations, which slows down the construction progress. Furthermore, for the method of pre-embedded sleeves and post-installed channels, the channels need to have connection holes, and then the sleeves or openings of the segments are aligned and connected by fasteners. At the same time, the molds of the channels need to be drilled to produce suitable channels, which increases the cost.

[0077] To address at least one of the aforementioned problems, this disclosure provides a connector comprising a body and an abutment portion. The body includes a bottom wall extending along a first direction and a first side wall and a second side wall disposed opposite to each other. The first and second side walls are respectively connected to the bottom wall, and the extending directions of the first and second side walls are the same as the extending direction of the bottom wall. The body has an opening at a position opposite to the bottom wall, the opening allowing a fastener to enter the body through the opening for connection with the body. The abutment portion is located outside the body and is connected to the bottom wall and / or the first side wall. The abutment portion is inclined relative to the bottom wall and is integrally formed with the body as a single piece. The abutment portion is used to abut against the wall of a mounting groove of a segment when the bottom wall abuts against the segment. The abutment portion has a mounting hole for communicating with a segment connection hole on the groove wall, allowing the segment fastener to pass through the segment connection hole and the mounting hole and be fixedly connected to the segment. The technical solution disclosed herein uses a rear-mounted connector, which can meet the function of later disassembly and adjustment, making later maintenance work more convenient. It is not affected by the pre-embedded accuracy. By directly connecting the connector to the existing connection hole of the segment, there is no need to drill holes in the segment, and it does not occupy the internal space of the channel.

[0078] This disclosure provides a connector, such as... Figures 1 to 10As shown, the connecting piece includes a body 1 and an abutting portion 2.

[0079] The body 1 includes a bottom wall 12 extending along a first direction A, and oppositely arranged first and second side walls 13 and 14 respectively connected to the bottom wall 12, and the extending directions of the first and second side walls 13 and 14 are the same as the extending direction of the bottom wall 12. The body 1 has an opening 15 at a position away from the bottom wall 12, and the opening 15 is used to allow a fastener to pass through the opening 15 into the body 1, so that the fastener is connected with the body 1.

[0080] The abutting portion 2 is located outside the body 1 and is connected to the bottom wall 12 and / or the first side wall 13. The abutting portion 2 is arranged obliquely relative to the bottom wall 12, and the abutting portion 2 is integrally formed with the body 1 as an integral piece. The abutting portion 2 is used to abut against the groove wall of the installation groove of the segment when the bottom wall 12 abuts against the segment. The abutting portion 2 is provided with a mounting hole 21, which is used to communicate with the segment connection hole on the groove wall, so that the segment fastener can pass through the segment connection hole and the mounting hole 21 and be fixedly connected with the segment.

[0081] According to the embodiments of the present disclosure, it should be noted that:

[0082] The segment is a structure commonly used in the field of subway, water conservancy, high-voltage power tunnel and other shield structures. A plurality of rings are spliced by connecting multiple segments in an arch bridge manner. The segments of the same shape are staggered in the axial direction (i.e. the length direction of the tunnel), and are constructed by using the self-supporting principle of the stone arch bridge. Once the segments are surrounded to form a ring, the structural stability is improved. The segment connection holes of the adjacent two segments are in communication with each other, and the segment fastener can pass through the segment connection holes of the two segments and be fastened to complete the connection of the adjacent two segments.

[0083] The connecting piece is a connecting structure mounted on the segment, and includes a body 1 and an abutting portion 2. The body 1 can be used to mount a load such as a cable, a pipeline, an electronic device, etc. The abutting portion 2 can be used to connect with the segment, so that the load can be mounted in the tunnel formed by the segments.

[0084] The shape of the body 1 can be selected and adjusted as needed, for example, an arc-shaped body 1 is arranged to adapt to the curvature of the segment, so that the body 1 can better cooperate with the segment.

[0085] The bottom wall 12, the first side wall 13 and the second side wall 14 of the body 1 extend along the first direction A, which is equivalent to the length direction of the body 1. That is, the first direction A is equivalent to the length direction of the body 1, as shown in Figure 1 As shown, the first direction A is an arc direction.

[0086] The relative position relationship of the bottom wall 12, the first side wall 13, the second side wall 14 and the opening 15 can be understood as that the body 1 has the first side wall 13 and the second side wall 14 arranged at intervals, and the bottom wall 12 and the top wall arranged at intervals between the first side wall 13 and the second side wall 14, wherein the top wall has the opening 15 extending along the first direction A.

[0087] The width of the bottom wall 12 (i.e. the distance between the first side wall 13 and the second side wall 14) can be selected and adjusted as required, for example, when the connecting end (i.e. the fastener) of the load-carrying object such as a pipeline is wider, a wider bottom wall 12 is arranged. Alternatively, to increase the contact area of the bottom wall 12 with the pipe piece and make the bottom wall 12 firmly abut against the pipe piece, a wider bottom wall 12 can be arranged.

[0088] The height of the first side wall 13 (the dimension perpendicular to the direction of the bottom wall 12) can be selected and adjusted as required, for example, when the connecting end (i.e. the fastener) of the load-carrying object is higher, a higher first side wall 13 is arranged. The height of the second side wall 14 can be selected and adjusted according to the height of the first side wall 13, for example, equal to the height of the first side wall 13. That is to say, by arranging a higher first side wall 13 and a higher second side wall 14, the height of the body 1 is increased to increase the space for arranging the fastener in the body 1, so that it can be adapted to fasteners of different sizes.

[0089] The length of the opening 15 extending along the first direction A can be the same as the extension length of the body 1, i.e. penetrating the top wall of the body 1.

[0090] The fastener can be understood as the connecting end of the load-carrying object, or any structure arranged between the load-carrying object and the body 1. When the load-carrying object such as a pipeline cooperates with the connecting piece, one end of the fastener can be a structure with unequal length and width, so as to be inserted into the body 1 through the opening 15 and clamped therein by rotating a certain angle, and the other end of the fastener can be connected with the load-carrying object by screw connection or the like.

[0091] The abutting portion 2 can be arranged on the bottom wall 12 or the first side wall 13, or at the connection between the bottom wall 12 and the first side wall 13. The abutting portion 2 is integrally processed and formed with the body 1, and then the shape of the abutting portion 2 is completed by cutting or the like process, for example, the abutting portion 2 is first processed into a straight shape, then the shape of the abutting portion 2 is selected according to the installation groove, the remaining part outside the abutting portion 2 is cut off, and then the abutting portion 2 is bent to form the abutting portion 2.

[0092] The shape of the abutting portion 2 can be selected and adjusted according to the shape of the installation groove of the pipe piece, for example, the installation groove is arranged in a semicircular shape, and the abutting portion 2 is arranged in a semicircular shape with a diameter slightly smaller than that of the installation groove, so that the abutting portion 2 can better abut against the groove wall of the installation groove.

[0093] The inclination angle of the abutting portion 2 relative to the bottom wall 12 can be selected and adjusted according to the inclination angle of the groove wall relative to the pipe sheet, for example, the groove wall is inclined at an angle of 135 degrees relative to the pipe sheet, and the abutting portion 2 is arranged to be inclined at an angle of 45 degrees relative to the bottom wall 12, so that the abutting portion 2 is better abutted on the groove wall.

[0094] The installation hole 21 is arranged at a position of the abutting portion 2, which can be adjusted according to the arrangement position of the pipe sheet connecting hole on the groove wall, so that the pipe sheet connecting hole can be communicated with the installation hole 21 when the abutting portion 2 is abutted on the groove wall. In addition, the diameter of the installation hole 21 can be slightly larger than the diameter of the pipe sheet connecting hole, so that the interference between the pipe sheet fastener and the abutting portion 2 caused by machining errors and the like can be avoided.

[0095] The shape of the installation hole 21 can be selected from a circle, an oval, a cross, a "U" shape and the like, which can be selected and adjusted as needed.

[0096] The pipe sheet fastener can be a device used when the pipe sheets are connected, which can be understood as a structure passing through the installation hole 21 and the pipe sheet connecting holes of the adjacent two pipe sheets, for example, a bolt and a nut matched with the bolt can be selected.

[0097] In an embodiment, the installation hole 21 is used to pass the bolt in the pipe sheet fastener, and the abutting portion 2 is arranged at one end of the bolt used to connect the nut in the pipe sheet fastener.

[0098] Specifically, the bolt is sequentially passed into one pipe sheet connecting hole and sequentially passed out of the pipe sheet connecting hole of the other adjacent pipe sheet and the installation hole 21, at this time, the nut of the bolt is abutted on the groove wall of the installation groove of one pipe sheet, and the washer and the nut are arranged on the end of the bolt away from the nut, so that the nut can be abutted on the abutting portion 2 through the washer, and the connection of the connecting piece and the pipe sheet is completed. Moreover, since the nut and the abutting portion 2 are located at the same end of the bolt away from the nut, when the connecting piece is installed, only the nut needs to be removed, and the whole bolt does not need to be removed from the pipe sheet, so that the installation of the connecting piece is realized, and the installation of the connecting piece is simplified.

[0099] It can be understood that when the connecting piece is installed, the pipe sheet fastener is removed, and after the connecting piece is arranged, the pipe sheet fastener is installed again. Through this arrangement, the device used for connection does not need to be produced separately, and the device (i.e., the pipe sheet connecting piece) originally used for connecting the pipe sheets can be used to complete the fixation of the connecting piece.

[0100] According to the embodiment of the present disclosure, before the connecting piece is installed, the pipe sheet fastener used to fix the pipe sheet in the pipe sheet connecting hole is removed, the bottom wall 12 of the connecting piece is attached to the pipe sheet, and the abutting portion 2 is placed in the installation groove, so that the abutting portion 2 is attached to the groove wall of the installation groove, and then the pipe sheet fastener is fastened through the installation hole 21 of the abutting portion 2 and the pipe sheet connecting hole, so that the connection of the connecting piece and the pipe sheet is realized.

[0101] According to the embodiment of the present disclosure, by arranging the abutting portion 2 inclined to the bottom wall 12 on the body 1 of the connecting piece to adapt to the mounting groove of the pipe piece, when the connecting piece is mounted, the abutting portion 2 is directly arranged in the mounting groove, and the mounting of the connecting piece is completed by fastening the two by the existing pipe piece connecting piece of the pipe piece, effectively solving the technical problems of low pre-buried precision and inconvenient later maintenance caused by pre-buried grooves in the pre-buried groove process at the set position of the wall. And effectively solve the technical problems of groove installation failure and low stability after installation caused by multiple pre-buried sleeves not in the same plane during the pipe piece lapping process by pre-buried sleeves in the pipe piece. By arranging the mounting hole 21 communicating with the pipe piece connecting hole of the pipe piece on the abutting portion 2, when the connecting piece is mounted, the existing pipe piece fastener of the pipe piece is directly inserted through the pipe piece connecting hole and the mounting hole 21 and fastened to realize the connection, effectively solving the technical problem of damaging the strength of the pipe piece caused by punching the pipe piece in the post-groove process. Moreover, the body 1 and the abutting portion are provided as an integral piece of integral molding in the embodiment of the present disclosure, which can improve the fatigue resistance of the connecting piece. By arranging the opening 15 on the body 1, the fastener connected with the load such as pipeline can pass through the opening 15 into the interior of the body 1 and be clamped therein. By arranging the opening 15 in the first direction A, the fastener can move in the first direction A, thereby adjusting the position of the load such as pipeline, realizing the plug and play of the fastener, and the load connected with the fastener can be arranged at any position of the body 1, that is, realizing millimeter-level adjustment.

[0102] In the related art, there is a steel groove connecting piece which is a reverse "U" shaped structure. The groove can be fixed inside the opening of the steel groove connecting piece by bolts. In addition, the steel groove connecting piece is welded with an ear portion, and the ear portion can be connected with the pipe piece. However, this method has the following disadvantages:

[0103] I. The steel groove connecting piece is connected with the ear portion by welding. The welding stress at the welding position cannot be released. The welding position has a large thickness, and the welding stress is concentrated. In addition, the stress position in the use process is the same as the welding position. The stress position is at the weakest position. The safety is poor. Especially in the special environment of high-frequency vibration such as subway, the vibration is strong. The welding opening is easily damaged in the fatigue environment.

[0104] Through the embodiment of the present disclosure, the connecting piece is an integral piece of integral molding. The integral piece does not have stress concentration. The fatigue resistance is strong. The safety is high. In the stress condition, for example, in the high-frequency vibration, the connecting piece is not easily damaged.

[0105] Secondly, the channel is connected with the steel channel connector through a bolt, which occupies the space inside the channel for installing the load-bearing object and affects the adjustment of the position of the fastener of the load-bearing object on the channel. Specifically, the steel channel connector is provided with a communication hole, and the channel needs to be provided with an opening matched with the communication hole. When the steel channel connector is connected with the channel, a device such as a bolt is needed to pass through the communication hole and the opening to fasten the two, and a part of the bolt will be located in the internal space of the channel. When the fastener needs to slide in the channel, the position of the part of the bolt in the internal space of the channel will hinder the movement of the fastener, and the millimeter-level adjustment of the fastener cannot be realized. It can be understood that the installation position of the load-bearing object in the channel is not fixed, and it may need to be installed at any position in the channel according to the category of the load-bearing object and the needs of the site. Since the internal space of the channel connected with the steel channel connector needs to install the bolt for fixing the steel channel connector and the channel, if the connection position of the load-bearing object is just at the position of the bolt, the installation of the load-bearing object cannot be realized.

[0106] Through the embodiment of the present disclosure, the connector is directly connected with the segment through the abutting portion 2. During installation, the abutting portion 2 is directly connected with the mounting groove of the segment, and the installation can be completed through the original segment fastener of the segment. Moreover, the body 1 of the connector is used for bearing the fastener, that is to say, after the installation of the abutting portion 2 is completed, the connector can be used for installing the fastener and the load-bearing object. However, the steel channel connector needs to be installed with the channel after installation, and can be used for installing the fastener and the load-bearing object, which realizes the quick installation. Moreover, the abutting portion 2 is located outside the body 1 and is integrally connected with the first side wall 13, and will not occupy the space inside the body 1. Therefore, the fastener can slide at any position in the body, which avoids the problem that the installation position of the fastener for connecting the load-bearing object interferes with the bolt (the bolt for fixing the steel channel connector and the channel), and the load-bearing object cannot be installed, and realizes the millimeter-level adjustment of the fastener.

[0107] Thirdly, the channel is installed inside the opening of the steel channel connector, and the back of the channel cannot be attached to the segment. Only the back of the steel channel connector can be attached to the segment. In the case of stress of the channel (i.e. when bearing the fastener), the stress of the fastener and the stress of the channel will be transferred to the back of the steel channel connector, the contact area of which with the segment is single, and the stress direction is single. In the case of stress, the two are not stable in attachment.

[0108] Through the embodiment of the present disclosure, after the installation of the connector, the abutting portion 2 is attached to the channel wall, and the bottom wall 12 of the body 1 is attached to the segment. The contact area of the connector with the segment is larger, and the abutting portion 2 is inclined relative to the bottom wall 12. In the case of stress of the body 1 (and the channel), the stress will be offset from the two directions of the abutting portion 2 and the bottom wall 12. Therefore, the connection of the connector with the segment is more firm.

[0109] In the prior art, the steel channel connecting piece needs to be installed in different installation grooves at a height of more than ten meters in the construction process, and then the channel is connected with the plurality of steel channel connecting pieces. The high-altitude landing operation is frequent, and there are safety risks, high construction difficulty, and extremely low efficiency and low reliability.

[0110] According to the embodiments of the present disclosure, only a few high-altitude landing operations are needed in the construction process to connect the abutting portion 2 with the installation groove, thereby completing the installation of the connecting piece. The connecting piece can be used to install fasteners and load-bearing objects after the installation is completed, without the need to install steel channel connecting pieces and then install channels, thereby improving the installation efficiency, reducing the number of high-altitude landing operations, improving the operation safety, reducing the construction difficulty, and improving the reliability.

[0111] In one example, the connecting piece is an aluminum alloy connecting piece composed of an aluminum alloy material, i.e., the body 1 and the abutting portion 2 are integrally formed of an aluminum alloy material.

[0112] Compared with steel material, the aluminum alloy connecting piece has poor demouldability, and the steel material cannot be integrally formed. When a complex structure is needed to bear stress, the steel material needs to be processed in parts and assembled by welding. However, the welding method causes stress concentration at the connection, and the connecting piece is often used in special environments such as subways, where the vibration is strong, and the welding joint is easily damaged in a fatigue environment. The integrally formed connecting piece does not have stress concentration, thereby improving the service life of the connecting piece. In addition, the recycling rate of the aluminum alloy connecting piece is high, which can reach about 97%. In subsequent maintenance work, if the connecting piece is found to be damaged, the connecting piece can be directly disassembled and recycled. The recycled connecting piece can be directly melted and reformed for reuse.

[0113] In one example, errors may exist in the pipe piece splicing process, causing errors between the pipe piece connecting holes of the pipe piece (i.e., the two adjacent pipe piece connecting holes are not completely connected). Generally, the maximum allowable error between the pipe pieces is 8 mm. In the pipe piece splicing process, the distance error between the two pipe piece connecting holes is very small, which may be only about 2 mm. Therefore, if the pipe piece fastener is a bolt, the diameter of the installation hole 21 of the abutting portion 2 needs to be greater than or equal to 26 mm, such as 28 mm, 30 mm, etc., so that the installation hole 21 and the pipe piece connecting hole can be smoothly connected without misalignment during the connection of the connecting piece and the pipe piece.

[0114] In one example, the distance between the first side wall 13 and the second side wall 14 (i.e., the width of the body 1) is greater than or equal to 25 mm and less than or equal to 65 mm.

[0115] In one example, the distance between the bottom wall 12 and the opening 15 (i.e. the height of the body 1) is greater than or equal to 15 mm and less than or equal to 40 mm.

[0116] In one example, the length of the body 1 along the first direction A (i.e. the length of the body 1) is greater than or equal to 500 mm and less than or equal to 6000 mm.

[0117] In one example, the mounting hole 21 is a circular mounting hole 21, and the diameter of the circular mounting hole 21 is greater than or equal to 20 mm and less than or equal to 60 mm.

[0118] In one example, the length of the body 1 along the first direction A (i.e. the length of the body 1) is greater than or equal to 500 mm and less than or equal to 6000 mm; the distance between the first side wall 13 and the second side wall 14 (i.e. the width of the body 1) is greater than or equal to 25 mm and less than or equal to 65 mm; the distance between the bottom wall 12 and the opening 15 (i.e. the height of the body 1) is greater than or equal to 15 mm and less than or equal to 40 mm; the mounting hole 21 is a circular mounting hole 21, and the diameter of the circular mounting hole 21 is greater than or equal to 20 mm and less than or equal to 60 mm.

[0119] In one example, the outer edge of the abutment portion 2 and the inner wall of the mounting groove are provided with a certain gap, for example, 10 mm, to facilitate the installation of the abutment portion 2, and to alleviate the error generated when the pipe segments are overlapped.

[0120] In one embodiment, the end of the abutment portion 2 towards the body 1 has a first connecting body and a second connecting body, and the abutment portion 2 is connected to the body 1 through the first connecting body and the second connecting body, and the first connecting body and the second connecting body have a first gap therebetween.

[0121] According to the embodiments of the present disclosure, it should be noted that:

[0122] The end of the abutment portion 2 towards the body 1 corresponds to a design with a double-layer structure, i.e. the abutment portion 2 is connected to the body 1 through the first connecting body and the second connecting body, wherein the first connecting body and the second connecting body can be respectively connected to the same end surface of the body 1, or can be respectively connected to different end surfaces of the body 1. Specifically, for example, the first connecting body and the second connecting body are arranged at intervals on the first side wall 13, or the first connecting body is arranged on the first side wall 13 and the second connecting body is arranged on the bottom wall 12.

[0123] The first connecting body and the second connecting body can be arranged relatively parallel, that is, the first connecting body and the second connecting body have the same inclination direction relative to the bottom wall 12. Or the first connecting body and the second connecting body are arranged relatively inclined, that is, the first connecting body and the second connecting body have different inclination directions relative to the bottom wall 12.

[0124] According to the force analysis, the body 1 is mainly subjected to the force provided by the load, and the abutment portion 2 is mainly subjected to the force of the segment connector, and the forces between the two are balanced. Since the abutment portion 2 is inclined relative to the bottom wall 12, the connection between the body 1 and the abutment portion 2 is a weak link of force. By arranging the abutment portion 2 as the spaced first connecting body and the second connecting body towards one end of the body 1, the structural strength and mechanical properties of the connection between the abutment portion 2 and the body 1 are improved, and the service life of the connector is further improved.

[0125] In one embodiment, as shown in Figure 3 the abutment portion 2 includes an abutment portion body 22 and a support body 23 arranged obliquely relative to the abutment portion body 22. The abutment portion body 22 is connected to the body 1. The first end of the support body 23 is connected to the abutment portion body 22. The second end of the support body 23 is connected to the body 1. At least part of the abutment portion body 22 is located on the side of the support body 23 away from the body 1. The mounting hole 21 is arranged on at least part of the abutment portion body 22.

[0126] The support body 23 constitutes the first connecting body. The part of the abutment portion body 22 between the body 1 and the first end of the support body 23 constitutes the second connecting body. The gap between the abutment portion body 22 and the support body 23 constitutes the first gap.

[0127] According to the embodiment of the present disclosure, it should be noted that:

[0128] Part of the abutment portion body 22 corresponds to the second connecting body, and the support body 23 corresponds to the first connecting body. The part of the support body 23, the abutment portion body 22 and the body 1 between the connection of the support body 23 and the body 1 and the connection of the abutment portion body 22 and the body 1 jointly constitute a reinforcing rib structure with a triangular cross section.

[0129] The relative positional relationship between the support body 23 and the abutment portion body 22 and the mounting hole 21 can be understood as that the end of the support body 23 connected to the abutment portion body 22 is spaced apart from the mounting hole 21. In this way, during the installation of the connector, the installation of the segment fastener is not affected.

[0130] According to the embodiment of the present disclosure, by arranging the support body 23 obliquely between the abutment portion body 22 and the body 1, a triangular reinforcing rib structure is formed therebetween, and due to the high stability of the triangle, the structural strength and stability between the abutment portion 2 and the body 1 can be further improved, which is beneficial to the improvement of the mechanical properties.

[0131] In one embodiment, as shown in Figure 3 the abutment portion body 22 and the second end of the support body 23 are connected to the first side wall 13.

[0132] According to an embodiment of the present disclosure, it should be noted that:

[0133] The support body 23 and the abutting portion body 22 are respectively connected to two spaced positions of the first side wall 13, wherein the side end face of the support body 23 away from the abutting portion body 22 is lower than the end face of the top wall of the body 1, that is to say, the support body 23 cannot protrude from the end face (i.e. the top wall) of the opening 15 side of the body 1, because after the body 1 is connected to the fastener of the load-carrying object, part of the fastener can move outside the body 1 (i.e. outside the top wall). Thus, the arrangement does not affect the movement of the fastener on the body 1 in the first direction A, so that it can be adjusted to any position on the body 1.

[0134] According to an embodiment of the present disclosure, after the fastener of the load-carrying object such as a pipeline is installed, the fastener can be adjusted to any position on the body 1, achieving plug-and-play and millimeter-level adjustment of the fastener.

[0135] In one embodiment, as shown in Figure 4 The abutting portion 2 includes a first abutting body 24 and a second abutting body 25 parallel to the first abutting body 24, and a pad body 26 between the first abutting body 24 and the second abutting body 25, the first abutting body 24 and the second abutting body 25 are connected to the body 1, and the mounting hole 21 penetrates the first abutting body 24, the second abutting body 25 and the pad body 26.

[0136] And the first abutting body 24, the second abutting body 25, the pad body 26 and the body 1 have a first gap, the part of the first abutting body 24 between the pad body 26 and the body 1 constitutes a first connecting body, and the part of the second abutting body 25 between the pad body 26 and the body 1 constitutes a second connecting body.

[0137] According to an embodiment of the present disclosure, it should be noted that:

[0138] The abutting portion 2 can be understood as a two-layer structure design, which are the first abutting body 24 and the second abutting body 25 arranged in a spaced manner, and the pad body 26 is arranged between the first abutting body 24 and the second abutting body 25, and the pad body 26 is arranged at one end of the first abutting body 24 and / or the second abutting body 25 away from the body 1, wherein the size of the pad body 26 is smaller than that of the first abutting body 24 and the second abutting body 25. Based on this, a first gap is formed between the first abutting body 24, the second abutting body 25, the pad body 26 and the body 1.

[0139] The mounting hole 21 is arranged in the region where the first abutting body 24, the second abutting body 25 and the pad body 26 are connected, based on which the position where the abutting portion 2 is arranged is a solid region, avoiding the center of gravity of the abutting portion 2 being hollowed out or the pad body 26 not being tightly matched later causing the abutting portion 2 to be broken under stress during installation.

[0140] In one embodiment, the first abutting body 24, the second abutting body 25 and the pad body 26 can be integrally formed as an integral piece, so as to reduce and avoid stress concentration and fatigue failure, and increase the stress bearing capacity of the mounting hole 21 when the abutting portion 2 is connected with the segment.

[0141] The length of the first abutting body 24 away from the one end of the body 1, and the length of the second abutting body 25 away from the one end of the body 1, can be selected and adjusted as needed. In one embodiment, the one end of the first abutting body 24 away from the body 1 can protrude from the pad body 26, and the one end of the second abutting body 25 away from the body 1 can protrude from the pad body 26, that is, the one end of the abutting portion 2 away from the body 1 is also formed as a double-layer structure. In order to increase the contact area of the abutting portion 2 with the mounting groove and improve the mechanical properties.

[0142] According to the embodiments of the present disclosure, the first abutting body 24 and the second abutting body 25 parallel to each other are arranged at the one end of the abutting portion 2 connected with the body 1, which can play a role of strengthening support and increasing the stress bearing capacity of the connection between the abutting portion 2 and the body 1.

[0143] In one embodiment, as shown in Figure 5 , the center line direction of the mounting hole 21 is the first thickness direction C (as shown in Figure 1 ), and the size of the abutting portion 2 along the first thickness direction C gradually decreases from the one end close to the body 1 to the one end away from the body 1.

[0144] According to the embodiments of the present disclosure, it should be noted that:

[0145] The abutting portion 2 corresponds to a structure with gradually decreasing thickness, and the thickness of the one end connected with the body 1 is relatively large, and the thickness of the one end away from the body 1 is relatively small (that is, the closer the abutting portion 2 is to the body 1, the thicker the thickness of the abutting portion 2 is). Since the abutting portion 2 is arranged obliquely relative to the bottom wall 12, the connection between the body 1 and the abutting portion 2 is a weak link of stress. By increasing the thickness of this part, the carrying capacity of this part can be improved, the mechanical properties can be improved, and the service life can be improved.

[0146] According to the embodiments of the present disclosure, by arranging the abutting portion 2 to be thicker as it is closer to the body 1, the closer the abutting portion 2 is to the body 1, the stronger the stress bearing capacity of the abutting portion 2 is, and the stronger the fatigue resistance of the connection between the abutting portion 2 and the body 1 is.

[0147] In one embodiment, as shown in Figures 2 to 10 , the number of abutting portions 2 is multiple, and the multiple abutting portions 2 are arranged at intervals along the first direction A.

[0148] According to the embodiments of the present disclosure, it should be noted that:

[0149] The intervals between the plurality of abutting portions 2 can be selected and adjusted according to the distance between the mounting grooves of adjacent segments, to adapt the connection of the connecting piece with the plurality of mounting grooves. For example, one connecting piece can be provided with 2, 3, 4 or 5 abutting portions 2, which can be arranged at equal intervals.

[0150] By providing a plurality of abutting portions 2, the connection strength between the segment and the connecting piece can be improved, and the firmness of the connection of the load can be improved.

[0151] According to the embodiments of the present disclosure, since the size of the tunnel formed by the segments is large, multiple high-altitude operations are required in the related art. By arranging a plurality of abutting portions 2 at intervals on the body 1, during the installation of the connecting piece, only a few high-altitude landing operations are required to complete the installation of the connecting piece, reducing the frequency of high-altitude operations and reducing the construction difficulty. And avoid occupying the internal space of the body 1, so that the fastener of the load such as the pipeline line can be adjusted at any position in the body 1.

[0152] In one embodiment, at least one of the plurality of mounting holes 21 of the plurality of abutting portions 2 is a cylindrical hole.

[0153] According to the embodiments of the present disclosure, it should be noted that:

[0154] The diameter of the cylindrical hole can be selected and adjusted according to the diameter of the segment connection hole, for example, the diameter of the cylindrical hole is slightly larger than the diameter of the segment connection hole, so that the segment fastener can pass through the cylindrical hole and the segment connection hole.

[0155] The size (diameter) of the remaining mounting holes 21 can be different from the diameter of the segment connection hole, for example, the size of the remaining mounting holes 21 is larger than the diameter of the segment connection hole. When there is an error in the lap joint of the segment, the part of the remaining mounting holes 21 larger than the segment connection hole can alleviate the error caused by the lap joint of the segment, so that the plurality of abutting portions 2 of the connecting piece can be smoothly connected with the plurality of mounting grooves of the segment.

[0156] In addition, the remaining mounting holes 21 can also be other shapes of mounting holes, for example, one of oval, cross and "U" shape, etc.

[0157] According to the embodiments of the present disclosure, by providing at least one mounting hole 21 as a cylindrical hole, the segment connection hole of the segment is adapted, and the connecting piece is more stably connected with the segment. The remaining mounting holes 21 adopt other shapes of mounting holes, which can improve the adjustability of each hole, and avoid the situation that the plurality of segment connection holes cannot be aligned with the plurality of mounting holes 21 due to the influence of processing errors, etc.

[0158] In one embodiment, the cross-sectional shape of the mounting hole 21 is one of a circle, an ellipse, a cross, and a "U" shape, in a plane perpendicular to the center line of the mounting hole 21.

[0159] According to embodiments of the present disclosure, it should be noted that:

[0160] The cross section of the mounting hole 21 can also be understood as the shape of the through hole formed by the mounting hole 21 on the two opposite end faces of the abutment portion 2.

[0161] The shape of the mounting hole 21 can be selected and adjusted according to the number of mounting holes 21. For example, if the connecting piece is provided with two abutment portions 2, one mounting hole 21 is arranged on each abutment portion 2, and the cross-sectional shapes of the two mounting holes 21 can be selected as one of the following: one is circular, and the other is elliptical. Or one is circular, and the other is cross-shaped. Or one is circular, and the other is "U" shaped. If the connecting piece is provided with three mounting holes 21, the cross-sectional shapes of the three mounting holes can be selected as one of the following: one is circular, and the other two can be any two shapes of an ellipse, a cross, and a "U" shape. In the case of multiple mounting holes 21, by arranging one mounting hole 21 as a circular shape, and the remaining mounting holes 21 as other shapes.

[0162] It can be understood that when the pipe segments are overlapped, the multiple pipe segment connecting holes required to be aligned with each mounting hole 21 can not be located on the same arc. By arranging the mounting holes 21 in the shapes of an ellipse, a cross, and a "U", each mounting hole 21 can still correspond to each pipe segment connecting hole, that is, the pipe segment fastener can be adjusted in position in the remaining mounting holes 21 to adapt to the pipe segment connecting hole, thereby alleviating the problem that the connecting piece cannot be installed due to the error of the pipe segment overlap.

[0163] According to embodiments of the present disclosure, by arranging mounting holes 21 in different shapes, the error generated when the pipe segments are overlapped can be alleviated when the connecting piece is installed.

[0164] In one embodiment, as shown in Figure 2 , Figures 5 to 9 The bottom wall 12 has a first extension 121 protruding from the outer surface of the first side wall 13, and the first extension 121 extends along the first direction A.

[0165] The abutment portion 2 is connected to the back surface of the bottom wall 12 away from the opening 15, and the abutment portion 2 is located on the side of the first side wall 13 away from the second side wall 14.

[0166] According to embodiments of the present disclosure, it should be noted that:

[0167] The position of the abutting portion 2 relative to the body 1 can be understood as follows: one end of the abutting portion 2 is arranged at the bottom wall 12, and the other end of the abutting portion 2 extends obliquely away from the second side wall 14.

[0168] The first extension 121 corresponds to a structure extending from the bottom wall 12 away from the second side wall 14.

[0169] The relationship between the abutting portion 2 and the first extension 121 can be understood as follows: the part of the abutting portion 2 connected to the body 1 is formed integrally with the first extension 121, for example, the abutting portion 2 is a structure extending from the first extension 121. Alternatively, one side end surface of the end of the abutting portion 2 connected to the body 1 (the end surface of the end along the first direction A) is formed integrally with one side end surface of the first extension 121 (the end surface of the end along the first direction A). In this way, the abutting portion 2 and the body 1 are integrally formed, which can increase the stress capacity of the connection between the abutting portion 2 and the body 1.

[0170] According to the embodiments of the present disclosure, by arranging the first extension 121 protruding from the first side wall 13 on the bottom wall 12, the contact area between the bottom wall 12 and the pipe piece is increased, and the friction between the bottom wall 12 and the pipe piece is improved, thereby improving the mechanical properties of the connecting piece.

[0171] In one embodiment, as shown in Figure 2 , Figures 5 to 9 , the second thickness direction D (as shown in Figure 1 ) is perpendicular to the bottom wall 12, and the size of the first extension 121 along the second thickness direction D gradually decreases from the end close to the first side wall 13 to the end away from the first side wall 13.

[0172] According to the embodiments of the present disclosure, it should be noted that:

[0173] The first extension 121 corresponds to a structure with gradually decreasing thickness, and the thickness of the end connected to the body 1 is relatively large, and the thickness of the end away from the body 1 is relatively small (i.e., the closer the first extension 121 is to the body 1, the thicker the thickness of the first extension 121), so as to improve the stress capacity of the connection between the first extension 121 and the body 1.

[0174] According to the embodiments of the present disclosure, by arranging the first extension 121 to be thicker as it is closer to the body 1, the closer the first extension 121 is to the body 1, the stronger the stress performance of the first extension 121, and the stronger the fatigue resistance of the connection between the first extension 121 and the body 1.

[0175] In one embodiment, as shown in Figure 6 , Figure 7 , the abutting portion 2 is located on the side of the first side wall 13 away from the second side wall 14.

[0176] The bottom wall 12 has a second extension 122 protruding from the outer surface of the second side wall 14, and the second extension 122 extends along the first direction A.

[0177] According to the embodiments of the present disclosure, it should be noted that:

[0178] The second extension 122 corresponds to a structure extending from the bottom wall 12 towards a direction away from the first side wall 13.

[0179] According to the embodiments of the present disclosure, by providing the second extension 122 protruding from the second side wall 14 on the bottom wall 12, the contact area between the bottom wall 12 and the pipe piece is increased, and the friction between the bottom wall 12 and the pipe piece is improved.

[0180] In one example, as shown in Figure 6 、 Figure 7 The bottom wall 12 has a first extension 121 protruding from the outer surface of the first side wall 13, and the first extension 121 extends along the first direction A. The bottom wall 12 has a second extension 122 protruding from the outer surface of the second side wall 14, and the second extension 122 extends along the first direction A. The abutting portion 2 is connected to the back surface of the bottom wall 12 away from the opening 15, and the abutting portion 2 is located on the side of the first side wall 13 away from the second side wall 14.

[0181] In one embodiment, as shown in Figure 7 、 Figure 9 、 Figure 10 The back surface of the bottom wall 12 away from the opening 15 has a first rough part 123 for increasing the surface roughness.

[0182] The first rough part 123 can be a point-like micro-protrusion structure, etc., which can increase the roughness of the back surface of the bottom wall 12.

[0183] According to the embodiments of the present disclosure, by providing the first rough part 123 on the back surface of the bottom wall 12 away from the opening 15, the roughness between the contact surfaces is increased, the friction is further improved, the friction between the back surface and the pipe piece is increased, and the contact stability between the body 1 and the concrete surface of the pipe piece is improved.

[0184] In one embodiment, the first rough part 123 includes a plurality of first micro-protrusions extending along the first direction A, and the plurality of first micro-protrusions are arranged along a second direction B perpendicular to the first side wall 13.

[0185] According to the embodiments of the present disclosure, it should be noted that:

[0186] The arrangement relationship between the plurality of first micro-protrusions can be understood as follows: any first micro-protrusion in the plurality of first micro-protrusions extends along the first direction A. The plurality of first micro-protrusions are arranged at intervals.

[0187] The shape of the first micro-protrusions can be selected and adjusted as needed, for example, arc-shaped micro-protrusions, tooth-shaped micro-protrusions, etc.

[0188] According to the embodiment of the present disclosure, by arranging a plurality of strip-shaped first micro-protrusions on the back surface of the bottom wall 12 away from the opening 15, the roughness between the contact surfaces can be further increased, the friction between the back surface and the pipe piece can be increased, and the stability of the contact surface between the body 1 and the concrete surface of the pipe piece can be improved.

[0189] In one embodiment, as shown in Figures 8 to 10 The abutting portion 2 used to abut against the end surface of the groove wall has a second roughness portion 27 for increasing the surface roughness.

[0190] The second roughness portion 27 can be a point-shaped micro-protrusion structure, etc., which can increase the roughness of the abutting portion 2.

[0191] According to the embodiment of the present disclosure, by arranging the second roughness portion 27 on the side end surface of the abutting portion 2 abutting against the groove wall of the mounting groove, the roughness of the contact surface is increased, and the friction between the abutting portion 2 and the groove wall is increased, thereby improving the structural stability of the fixed portion of the abutting portion 2.

[0192] In one example, Figure 9 , Figure 10 As shown in the drawings, the bottom wall 12 has a first roughness portion 123 on the back surface away from the opening 15 for increasing the surface roughness. The abutting portion 2 used to abut against the end surface of the groove wall has a second roughness portion 27 for increasing the surface roughness.

[0193] Through the examples of the present disclosure, by arranging the first roughness portion 123 on the back surface of the bottom wall 12 away from the opening 15, the roughness of the contact surface between the back surface and the pipe piece is increased, and the friction between the back surface and the pipe piece is increased. By arranging the second roughness portion 27 on the side end surface of the abutting portion 2 abutting against the groove wall of the mounting groove, the roughness of the contact surface between the abutting portion 2 and the groove wall is increased, and the friction between the abutting portion 2 and the groove wall is increased, thereby increasing the stability of the connecting piece after being fixed with the pipe piece. Moreover, since the first roughness portion 123 and the second roughness portion 27 are arranged on two different direction contact surfaces, after the connecting piece is connected with the pipe piece, when the connecting piece is under stress (i.e., when the connecting piece is under load), the two contact surfaces of the connecting piece are pulled in different directions, thereby further improving the stability of the connecting piece after being fixed.

[0194] In one embodiment, the second roughness portion 27 includes a plurality of second micro-protrusions extending along a third direction E, and the plurality of second micro-protrusions are arranged along a fourth direction F, and the third direction E, the fourth direction F, and the center line direction of the mounting hole 21 are perpendicular to each other.

[0195] According to the embodiment of the present disclosure, it should be noted that:

[0196] The third direction E and the fourth direction F are as shown. Figure 1

[0197] The arrangement relationship between the plurality of second micro-protrusions can be understood as that any second micro-protrusion among the plurality of second micro-protrusions extends along the third direction E. The plurality of second micro-protrusions are arranged at intervals.

[0198] The shape of the second micro-protrusion can be selected and adjusted as needed, for example, an arc-shaped micro-protrusion, a tooth-shaped micro-protrusion, etc.

[0199] According to the embodiment of the present disclosure, by arranging a plurality of second micro-protrusions on the side end face of the abutting portion 2 abutting with the groove wall of the mounting groove, the roughness of the contact surface between the abutting portion 2 and the groove wall is increased, the friction between the abutting portion 2 and the groove wall is increased, and the structural stability of the fixed part of the abutting portion 2 is improved.

[0200] In one example, as shown in Figure 10 The abutting portion 2 includes an abutting portion body 22 connected to the body 1 and a support body 23 arranged obliquely relative to the abutting portion body 22, a first end of the support body 23 is connected to the abutting portion body 22, a second end of the support body 23 is connected to the body 1, at least part of the abutting portion body 22 is located on the side of the support body 23 away from the body 1, and the mounting hole 21 is arranged on at least part of the abutting portion body 22.

[0201] The support body 23 constitutes a first connecting body, the part of the abutting portion body 22 between the body 1 and the second end of the support body 23 constitutes a second connecting body, and the gap between the abutting portion body 22 and the support body 23 constitutes a first gap.

[0202] The bottom wall 12 has a first extension 121 protruding from the outer surface of the first side wall 13, and the first extension 121 extends along the first direction A. The bottom wall 12 has a second extension 122 protruding from the outer surface of the second side wall 14, and the second extension 122 extends along the first direction A. The abutting portion 2 is connected to the back surface of the bottom wall 12 away from the opening 15, and the abutting portion 2 is located on the side of the first side wall 13 away from the second side wall 14. The back surface of the bottom wall 12 away from the opening 15 has a first rough part 123 for increasing the surface roughness. The end surface of the abutting portion 2 for abutting against the groove wall has a second rough part 27 for increasing the surface roughness.

[0203] According to the example of the present disclosure, the stress capacity of the connection part of the abutting portion 2 and the body 1 is improved, and the contact area between the connecting member and the pipe piece is increased, and the friction between the connecting member and the pipe piece is improved.

[0204] In one example, as shown in Figure 7 ​As shown, the second extension part 122 is provided with a third rough part extending along the first direction A at the side end face for connecting with the segment. By providing the third rough part on the second extension part 122, the roughness between the contact surfaces is increased, the friction between the second extension part 122 and the segment is increased, and the stability between the body 1 and the concrete surface of the segment is improved.

[0205] In one example, the connecting piece is made of aluminum alloy, and the processing method generally includes extrusion forming, cutting the abutting part 2, drilling the mounting hole 21, and bending the abutting part 2 to form an integrated connecting piece. Compared with the existing processing method of the steel segment (generally roll-pressing-bending-ear hanging blanking (plate processing)-welding) to form a lap joint device, the connecting piece has better fatigue resistance.

[0206] In one example, the edge of the abutting part 2 can be provided with a bent part, which can be bent at an angle relative to the abutting part 2 and connected to the inner side wall of the mounting groove. It can be understood that the abutting part 2 can be connected to the bottom wall of the mounting groove, and the bent part can be connected to the inner side wall of the mounting groove connected to the bottom wall.

[0207] According to the examples of the present disclosure, by providing the bent part on the abutting part 2 for connecting to the inner side wall of the mounting groove, when the connecting piece is installed, the contact area between the connecting piece and the segment can be increased, the friction therebetween can be increased, and the stability of the connecting piece can be improved.

[0208] The present disclosure provides a segment 3 device, as shown in Figure 11 which includes a segment 3 and a connecting piece.

[0209] The segment 3 has a mounting groove 31, and the groove wall 311 of the mounting groove 31 is provided with a segment connecting hole 3111.

[0210] The connecting piece, as shown in Figures 1 to 10 includes a body 1 and an abutting part 2. The body 1 includes a bottom wall 12 extending along a first direction A, and first and second side walls 13 and 14 oppositely arranged. The first and second side walls 13 and 14 are respectively connected to the bottom wall 12, and the extension directions of the first and second side walls 13 and 14 are the same as the extension direction of the bottom wall 12. The body 1 has an opening 15 at a position away from the bottom wall 12. The opening 15 is used to allow a fastener 28 to pass through the opening 15 and enter the body 1, so that the fastener 28 is connected to the body 1.

[0211] The abutting portion 2 is located outside the body 1, and the abutting portion 2 is connected to the bottom wall 12 and / or the first side wall 13. The abutting portion 2 is arranged obliquely relative to the bottom wall 12, and the abutting portion 2 is integrally formed with the body 1 as an integral piece. The abutting portion 2 is used to abut to the groove wall 311 of the mounting groove 31 when the bottom wall 12 abuts to the pipe piece 3. The abutting portion 2 is provided with a mounting hole 21, which is used to communicate with the pipe piece connecting hole 3111, so that the pipe piece fastener 32 can pass through the pipe piece connecting hole 3111 and the mounting hole 21, and be fixedly connected with the pipe piece 3.

[0212] According to the embodiments of the present disclosure, it should be noted that:

[0213] The pipe piece 3 is a structure commonly used in the field of subway, water conservancy, high-voltage power tunnel and other shield tunnels. A plurality of rings are spliced by connecting multiple rings in an arch bridge manner. The pipe pieces 3 of the same shape are staggered in the axial direction (i.e. the length direction of the tunnel), and are constructed by using the self-supporting principle of the stone arch bridge. Once the pipe pieces 3 are surrounded to form a ring, the structural stability of the pipe pieces 3 will be improved. The pipe piece connecting holes 3111 of the adjacent two pipe pieces 3 are in communication with each other, and the pipe piece fastener 32 can pass through the pipe piece connecting holes 3111 of the two pipe pieces 3 and be fastened, so that the adjacent two pipe pieces 3 are connected.

[0214] The connecting piece is a connecting structure installed on the pipe piece 3, and the connecting piece includes the body 1 and the abutting portion 2. The body 1 can be used to install cables, pipelines, electronic devices and other load-bearing objects, and the abutting portion 2 can be used to connect with the pipe piece 3, so that the load-bearing objects can be installed in the tunnel formed by the pipe piece 3.

[0215] The shape of the body 1 can be selected and adjusted as needed, for example, the body 1 is arranged in an arc shape to adapt to the curvature of the pipe piece 3, so that the body 1 can better match the pipe piece 3.

[0216] The bottom wall 12, the first side wall 13 and the second side wall 14 of the body 1 extend along the first direction A, which is equivalent to the length direction of the body 1. That is, the first direction A is equivalent to the length direction of the body 1, as shown in Figure 1 The first direction A is an arc direction.

[0217] The relative position relationship of the bottom wall 12, the first side wall 13, the second side wall 14 and the opening 15 can be understood as follows: the body 1 has the first side wall 13 and the second side wall 14 arranged at intervals, and the bottom wall 12 and the top wall arranged at intervals between the first side wall 13 and the second side wall 14. The top wall has the opening 15 extending along the first direction A.

[0218] The width of the bottom wall 12 (i.e. the distance between the first side wall 13 and the second side wall 14) can be selected and adjusted as required, for example, the connecting end of the load-carrying object (i.e. the fastener 28) is wider, the bottom wall 12 is set to be wider. Or, to increase the contact area of the bottom wall 12 and the pipe piece 3, so that the bottom wall 12 is firmly abutted on the pipe piece 3, the bottom wall 12 can be set to be wider.

[0219] The height of the first side wall 13 (the size perpendicular to the direction of the bottom wall 12) can be selected and adjusted as required, for example, the connecting end of the load-carrying object (i.e. the fastener 28) is higher, the first side wall 13 is set to be higher. The height of the second side wall 14 can be selected and adjusted according to the height of the first side wall 13, for example, equal to the height of the first side wall 13. That is, by setting the first side wall 13 and the second side wall 14 to be higher, the height of the body 1 is increased, so as to increase the space in the body 1 for accommodating the fastener 28, so that it can adapt to fasteners 28 of different sizes.

[0220] The length of the opening 15 extending along the first direction A can be the same as the extension length of the body 1, that is, through the top wall of the body 1.

[0221] The fastener 28 can be understood as: the connecting end of the load-carrying object, or any structure arranged between the load-carrying object and the body 1. When the load-carrying object such as a pipeline and the connecting piece cooperate, one end of the fastener 28 can be a structure with unequal length and width, so as to be inserted into the body 1 through the opening 15 and can be clamped therein by rotating a certain angle, and the other end of the fastener 28 can be connected with the load-carrying object by means of threaded connection or the like.

[0222] The abutting portion 2 can be arranged on the bottom wall 12 or the first side wall 13, or arranged at the connection between the bottom wall 12 and the first side wall 13. The abutting portion 2 is integrally processed and formed with the body 1, and then the shape of the abutting portion 2 is completed by cutting or the like process, for example, the abutting portion 2 is first processed to be straight, then the abutting portion 2 is selected according to the installation groove 31, the remaining part outside the abutting portion 2 is cut off, and then the abutting portion 2 is bent to form the abutting portion 2.

[0223] The shape of the abutting portion 2 can be selected and adjusted according to the shape of the installation groove 31 of the pipe piece 3, for example, the installation groove 31 is arranged to be semicircular, and the abutting portion 2 is arranged to be semicircular with a diameter slightly smaller than that of the installation groove 31, so that the abutting portion 2 can better abut on the groove wall 311 of the installation groove 31.

[0224] The inclination angle of the abutting portion 2 relative to the bottom wall 12 can be selected and adjusted according to the inclination angle of the groove wall 311 relative to the pipe piece 3, for example, the groove wall 311 is inclined by 135 degrees relative to the pipe piece 3, and the abutting portion 2 is arranged to be inclined by 45 degrees relative to the bottom wall 12, so that the abutting portion 2 can better abut on the groove wall 311.

[0225] The installation hole 21 is arranged at the position of the abutting portion 2, which can be adjusted according to the arrangement position of the pipe piece connecting hole 3111 on the groove wall 311, so that the pipe piece connecting hole 3111 can be in communication with the installation hole 21 when the abutting portion 2 abuts against the groove wall 311. In addition, the diameter of the installation hole 21 can be slightly larger than the diameter of the pipe piece connecting hole 3111, so that the interference between the pipe piece fastener 32 and the abutting portion 2 caused by machining errors and the like can be avoided.

[0226] The shape of the installation hole 21 can be circular, oval, cross-shaped, U-shaped, etc., which can be selected and adjusted as needed.

[0227] The pipe piece fastener 32 can be a device used when the pipe pieces 3 are connected, which can be understood as a structure that passes through the installation hole 21 and the pipe piece connecting holes 3111 of the adjacent two pipe pieces 3. For example, a bolt and a nut matched with the bolt can be selected.

[0228] In an embodiment, the installation hole 21 is used to pass the bolt in the pipe piece fastener 32, and the abutting portion 2 is arranged at the end of the bolt used to connect the nut in the pipe piece fastener 32.

[0229] Specifically, the bolt passes into one of the pipe piece connecting holes 3111 in sequence and passes out of the pipe piece connecting hole 3111 of the other adjacent pipe piece 3 and the installation hole 21 in sequence. At this time, the nut of the bolt abuts against the groove wall 311 of the installation groove 31 of one pipe piece 3, and a gasket and a nut are arranged at the end of the bolt away from the nut, so that the nut can abut against the abutting portion 2 through the gasket, and the connection of the connecting piece and the pipe piece 3 is completed. Moreover, since the nut and the abutting portion 2 are located at the same end of the bolt away from the nut, when the connecting piece is installed, only the nut needs to be removed, and the whole bolt does not need to be removed from the pipe piece 3, so that the installation of the connecting piece is realized, and the installation of the connecting piece is simplified.

[0230] It can be understood that when the connecting piece is installed, the pipe piece fastener 32 is removed, and the connecting piece is arranged again, and then the pipe piece fastener 32 is installed again. Through this arrangement, the device used for connection does not need to be produced separately, and the device (i.e., the pipe piece connecting piece) originally used for the connection of the pipe pieces 3 can be used to fix the connecting piece.

[0231] According to the embodiment of the present disclosure, before the connecting piece is installed, the pipe piece fastener 32 used to fix the pipe piece 3 in the pipe piece connecting hole 3111 is removed, the bottom wall 12 of the connecting piece is attached to the pipe piece 3, and the abutting portion 2 is placed in the installation groove 31, so that the abutting portion 2 is attached to the groove wall 311 of the installation groove 31. Then, the pipe piece fastener 32 is fastened through the installation hole 21 of the abutting portion 2 and the pipe piece connecting hole 3111, so that the connection of the connecting piece and the pipe piece 3 is realized.

[0232] According to the embodiment of the present disclosure, by arranging the abutment portion 2 inclined to the bottom wall 12 on the body 1 of the connecting piece to adapt to the mounting groove 31 of the pipe piece 3, when the connecting piece is installed, the abutment portion 2 is directly arranged in the mounting groove 31, and the installation of the connecting piece is completed by fastening the pipe piece 3 connecting piece of the pipe piece 3, which effectively solves the technical problems of low pre-buried precision and inconvenient later maintenance caused by pre-buried grooves in the wall at the set position in the pre-buried groove process. And effectively solve the technical problems of groove installation failure and low stability after installation caused by multiple pre-buried sleeves not in the same plane in the pipe piece 3 during the pipe piece 3 lapping process. By arranging the mounting hole 21 communicated with the pipe piece connecting hole 3111 of the pipe piece 3 on the abutment portion 2, when the connecting piece is installed, the pipe piece fastener 32 of the pipe piece 3 is directly inserted through the pipe piece connecting hole 3111 and the mounting hole 21 and fastened to realize the connection, which effectively solves the technical problem of damaging the strength of the pipe piece 3 caused by punching the pipe piece 3 in the post-groove process. Moreover, the body 1 and the abutment portion of the embodiment of the present disclosure are integrally formed into an integral piece, which can improve the fatigue resistance of the connecting piece. By arranging the opening 15 on the body 1, the fastener 28 connected with the pipeline and the like can pass through the opening 15 into the interior of the body 1 and be clamped therein. By arranging the opening 15 along the first direction A, the fastener 28 can move in the first direction A, thereby adjusting the position of the pipeline and the like, realizing the plug-and-play of the fastener 28, and the load carried by the fastener 28 can be arranged at any position of the body 1, that is, millimeter-level adjustment is realized.

[0233] In the related art, there is a steel groove connecting piece which is a reverse "U" shaped structure. The groove can be fixed inside the opening of the steel groove connecting piece by bolts. In addition, the steel groove connecting piece is welded with an ear portion, and the ear portion can be connected with the pipe piece 3. However, this method has the following disadvantages:

[0234] I. The steel groove connecting piece is connected with the ear portion by welding. The welding stress at the welding position cannot be released. The welding position has a large thickness, and the welding stress is concentrated. In addition, the stress position in the use process is the same as the welding position. The stress position is at the weakest position. The safety is poor. Especially in the special environment of high-frequency vibration such as subway, the vibration is strong. The welding opening is easily damaged in the fatigue environment.

[0235] Through the embodiment of the present disclosure, the connecting piece is an integrally formed integral piece. The integral piece does not have stress concentration. The fatigue resistance is strong. The safety is high. In the stress condition, for example, in the high-frequency vibration, the connecting piece is not easily damaged.

[0236] II. The channel is connected with the steel channel connector through a bolt, which occupies the space inside the channel for installing the load-bearing object, and affects the adjustment of the position of the fastener 28 of the load-bearing object on the channel. Specifically, the steel channel connector is provided with a communication hole, and the channel needs to be provided with an opening hole matched with the communication hole. When the steel channel connector is connected with the channel, a device such as a bolt is needed to pass through the communication hole and the opening hole to fasten the two, and a part of the bolt will be located in the internal space of the channel. When the fastener 28 needs to slide in the channel, the position of the internal space of the channel where the part of the bolt is located will hinder the movement of the fastener 28, and the millimeter-level adjustment of the fastener 28 cannot be realized. It can be understood that the installation position of the load-bearing object in the channel is not fixed, and it may need to be installed at any position in the channel according to the category of the load-bearing object and the needs of the site. Since the internal space of the channel connected with the steel channel connector needs to install the bolt for fixing the steel channel connector and the channel, if the connection position of the load-bearing object is just at the position of the bolt, the installation of the load-bearing object cannot be realized.

[0237] Through the embodiments of the present disclosure, the connector is directly connected with the segment 3 through the abutment part 2. During installation, the abutment part 2 is directly connected with the installation groove 31 of the segment 3, and the installation can be completed through the original segment fastener 32 of the segment 3. Moreover, the body 1 of the connector is used for bearing the fastener 28, that is to say, after the installation of the abutment part 2 is completed, the connector can be used for installing the fastener 28 and the load-bearing object, while the steel channel connector needs to be installed in the installation groove 31 after installation, and can be used for installing the fastener 28 and the load-bearing object, realizing fast installation. Moreover, the abutment part 2 is located outside the body 1 and is integrally connected with the first side wall 13, and will not occupy the space inside the body 1, so that the fastener 28 can slide at any position in the body, avoiding the problem that the installation position of the fastener 28 for connecting the load-bearing object interferes with the bolt (the bolt for fixing the steel channel connector and the channel), and realizing the millimeter-level adjustment of the fastener 28.

[0238] III. The channel is installed in the opening of the steel channel connector, and the back of the channel cannot be attached to the segment 3. Only the back of the steel channel connector can be attached to the segment 3. In the case of stress of the channel (i.e. when bearing the fastener 28), the stress of the fastener 28 and the stress of the channel will be transferred to the back of the steel channel connector, the contact area of which with the segment 3 is single, the stress direction is single, and the two are unstable in contact under stress.

[0239] Through the embodiment of the present disclosure, after the mounting connector, the abutment portion 2 is attached to the groove wall 311, the bottom wall 12 of the body 1 is attached to the pipe piece 3, the contact area of the connector with the pipe piece 3 is larger, and the abutment portion 2 is inclined relative to the bottom wall 12. In the case of stress on the body 1 (and the channel), the stress is offset from both the abutment portion 2 and the bottom wall 12, so the connection of the connector with the pipe piece 3 is more secure.

[0240] Four, the steel channel connector in the related art needs to be installed in different installation grooves 31 in the construction process, and then the channel is connected with the plurality of steel channel connectors, the high-altitude landing operation is frequent, there is a safety hidden danger, the construction difficulty is high, the efficiency is extremely low, and the reliability is low.

[0241] Through the embodiment of the present disclosure, only a few high-altitude landing operations are needed in the construction process to connect the abutment portion 2 with the installation groove 31, and the installation of the connector can be completed. After the installation of the connector is completed, the fastener 28 and the load can be installed, without the need to install the steel channel connector first and then install the channel 31, which improves the installation efficiency, reduces the number of high-altitude landing operations, improves the operation safety, reduces the construction difficulty, and has high reliability.

[0242] In one example, the connector is an aluminum alloy connector composed of an aluminum alloy material, that is, the body 1 and the abutment portion 2 are integrally formed of an aluminum alloy material.

[0243] Compared with steel material, the material has poor demouldability, and the steel material cannot be integrally formed. When a complex structure is needed to bear stress, separate processing is needed, and assembly is performed by welding. However, the welding method causes stress concentration at the connection, and the connector is often used in special environments such as subways, where the vibration is strong, and the welding joint is easily damaged in a fatigue environment. Through the integrally formed mode, there is no stress concentration, and the service life of the connector is improved. Moreover, the recycling rate of the aluminum alloy connector is high, which can reach about 97%. In subsequent maintenance work, if the connector is found to be damaged, the connector can be directly disassembled and recycled. The recycled connector can be directly melted and reformed for reuse.

[0244] In one example, there can be errors in the process of joining the segments 3, resulting in errors between the segment connection holes 3111 of the segments 3 (i.e. the two adjacent segment connection holes 3111 are not completely connected). Generally, the maximum allowable error between the segments 3 is 8 mm, and the error between the two segment connection holes 3111 in the process of joining the segments 3 is very small, which can be about 2 mm. Therefore, if the segment fastener 32 is a bolt, the diameter of the mounting hole 21 of the abutment 2 needs to be greater than or equal to 26 mm, for example, 28 mm, 30 mm, etc., so that the mounting hole 21 and the segment connection hole 3111 can be smoothly connected during the connection of the connecting member and the segment 3, and the dislocation of the mounting hole 21 and the segment connection hole 3111 is avoided.

[0245] In one example, the distance between the first side wall 13 and the second side wall 14 (i.e. the width of the body 1) is greater than or equal to 25 mm and less than or equal to 65 mm.

[0246] In one example, the distance between the bottom wall 12 and the opening 15 (i.e. the height of the body 1) is greater than or equal to 15 mm and less than or equal to 40 mm.

[0247] In one example, the length of the body 1 along the first direction A (i.e. the length of the body 1) is greater than or equal to 500 mm and less than or equal to 6000 mm.

[0248] In one example, the mounting hole 21 is a circular mounting hole 21, and the diameter of the circular mounting hole 21 is greater than or equal to 20 mm and less than or equal to 60 mm.

[0249] In one example, the length of the body 1 along the first direction A (i.e. the length of the body 1) is greater than or equal to 500 mm and less than or equal to 6000 mm; the distance between the first side wall 13 and the second side wall 14 (i.e. the width of the body 1) is greater than or equal to 25 mm and less than or equal to 65 mm; the distance between the bottom wall 12 and the opening 15 (i.e. the height of the body 1) is greater than or equal to 15 mm and less than or equal to 40 mm; and the mounting hole 21 is a circular mounting hole 21, and the diameter of the circular mounting hole 21 is greater than or equal to 20 mm and less than or equal to 60 mm.

[0250] In one example, a gap, for example, 10 mm, is provided between the outer edge of the abutment 2 and the inner wall of the mounting groove 31, so as to facilitate the installation of the abutment 2 and alleviate the errors generated during the joining of the segments 3.

[0251] In one embodiment, the end of the abutment 2 towards the body 1 has a first connecting body and a second connecting body, the abutment 2 is connected to the body 1 through the first connecting body and the second connecting body, and the first connecting body and the second connecting body have a first gap therebetween.

[0252] According to the embodiment of the present disclosure, it should be noted that:

[0253] The end of the abutting portion 2 towards the body 1 corresponds to a design with a double-layer structure, that is, the abutting portion 2 is connected with the body 1 through the first connecting body and the second connecting body, wherein the first connecting body and the second connecting body can be respectively connected with the same end surface of the body 1, or can be respectively connected with different end surfaces of the body 1. Specifically, for example, the first connecting body and the second connecting body are arranged at intervals on the first side wall 13, or the first connecting body is arranged on the first side wall 13 and the second connecting body is arranged on the bottom wall 12.

[0254] The first connecting body and the second connecting body can be arranged relatively parallel, that is, the first connecting body and the second connecting body have the same inclination direction relative to the bottom wall 12. Or the first connecting body and the second connecting body are arranged relatively inclined, that is, the first connecting body and the second connecting body have different inclination directions relative to the bottom wall 12.

[0255] According to the embodiment of the present disclosure, according to the force analysis, the body 1 is mainly subjected to the force provided by the load, and the abutting portion 2 is mainly subjected to the force of the connecting piece of the segment 3, and the forces between the two are balanced. Since the abutting portion 2 is arranged inclined relative to the bottom wall 12, the connection between the body 1 and the abutting portion 2 is a weak link of force. By arranging the end of the abutting portion 2 towards the body 1 as the first connecting body and the second connecting body at intervals, the structural strength and mechanical properties of the connection between the abutting portion 2 and the body 1 are improved, and the service life of the connecting piece is further improved.

[0256] In one embodiment, as shown in Figure 3 The abutting portion 2 includes an abutting portion body 22 and a support body 23 arranged inclined relative to the abutting portion body 22, the abutting portion body 22 is connected to the body 1, the first end of the support body 23 is connected to the abutting portion body 22, the second end of the support body 23 is connected to the body 1, at least part of the abutting portion body 22 is located on the side of the support body 23 away from the body, and the mounting hole 21 is arranged on at least part of the abutting portion body 22.

[0257] The support body 23 constitutes the first connecting body, the part of the abutting portion body 22 between the body and the first end of the support body 23 constitutes the second connecting body, and the gap between the abutting portion body 22 and the support body 23 constitutes the first gap.

[0258] According to the embodiment of the present disclosure, it should be noted that:

[0259] Part of the abutting portion body 22 corresponds to the second connecting body, and the support body 23 corresponds to the first connecting body, wherein the support body 23, the part of the abutting portion body 22 between the support body 23 and the body 1, and the part of the body 1 between the support body 23 and the body 1 constitute a reinforcing rib structure with a triangular cross section.

[0260] The relative position relationship between the support body 23 and the abutting portion body 22 and the mounting hole 21 can be understood as that the support body 23 is connected to one end of the abutting portion body 22 and is spaced apart from the mounting hole 21. In this way, during installation of the connecting piece, the installation of the pipe piece fastener 32 is not affected.

[0261] According to the embodiment of the present disclosure, by arranging the support body 23 inclined to the abutting portion body 22 between the abutting portion body 22 and the body 1, a triangular reinforcing rib structure is formed among the three, and due to the high stability of the triangle, the structural strength and stability between the abutting portion 2 and the body 1 can be further improved, which is beneficial to the improvement of the mechanical properties.

[0262] In one embodiment, as shown in Figure 3 The abutting portion body 22 and the second end of the support body 23 are both connected to the first side wall 13.

[0263] According to the embodiment of the present disclosure, it should be noted that:

[0264] The support body 23 and the abutting portion body 22 are respectively connected to two spaced positions of the first side wall 13, wherein the side end face of the support body 23 away from the abutting portion body 22 is lower than the end face of the top wall of the body 1, that is, the support body 23 cannot protrude from the end face (i.e. the top wall) of the opening 15 of the body 1. After the fastener 28 for carrying the load is connected to the body 1, part of the fastener 28 can move outside the body 1 (i.e. outside the top wall). In this way, the movement of the fastener 28 in the first direction A on the body 1 is not affected, so that the fastener 28 can be adjusted at any position on the body 1.

[0265] According to the embodiment of the present disclosure, after the fastener 28 for carrying the load such as pipeline is installed, the fastener 28 can be adjusted at any position on the body 1, realizing plug and play and millimeter-level adjustment of the fastener 28.

[0266] In one embodiment, as shown in Figure 4 The abutting portion 2 includes a first abutting body 24 and a second abutting body 25 parallel to the first abutting body 24, and a pad body 26 located between the first abutting body 24 and the second abutting body 25, the first abutting body 24 and the second abutting body 25 are both connected to the body 1, and the mounting hole 21 penetrates the first abutting body 24, the second abutting body 25 and the pad body 26.

[0267] There is a first gap between the first abutting body 24, the second abutting body 25, the pad body 26 and the body 1, the part of the first abutting body 24 between the pad body 26 and the body 1 constitutes a first connecting body, and the part of the second abutting body 25 between the pad body 26 and the body 1 constitutes a second connecting body.

[0268] According to the embodiments of this disclosure, it should be noted that:

[0269] The abutment portion 2 can be understood as a two-layer structure, consisting of a first abutment body 24 and a second abutment body 25 spaced apart, with a pad 26 positioned between the first abutment body 24 and the second abutment body 25. The pad 26 is located at the end of the first abutment body 24 and / or the second abutment body 25 furthest from the main body 1, and the size of the pad 26 is smaller than that of the first abutment body 24 and the second abutment body 25. Based on this, a first gap is formed between the first abutment body 24 and the second abutment body 25, the pad 26, and the main body 1.

[0270] The mounting hole 21 is located in the area where the first abutting body 24, the second abutting body 25 and the pad 26 are connected. Based on this, the position of the mounting hole 21 in the abutting part 2 is a solid area, which avoids the abutting part 2 being damaged by force during the installation process due to the abutting part 2 being hollow or the pad 26 not fitting tightly in the later stage.

[0271] In one embodiment, the first abutment 24, the second abutment 25, and the pad 26 can be integrally molded into one piece, thereby reducing and avoiding stress concentration and fatigue failure, and increasing the load-bearing capacity of the mounting hole 21 when the abutment 2 is connected to the tube 3.

[0272] The lengths of the ends of the first abutment 24 and the second abutment 25 that are away from the body 1 can be selected and adjusted as needed. In one embodiment, the end of the first abutment 24 that is away from the body 1 can protrude from the pad 26, and the end of the second abutment 25 that is away from the body 1 can also protrude from the pad 26, that is, the end of the abutment 2 that is away from the body 1 is also formed as a double-layer structure. This increases the contact area between the abutment 2 and the mounting groove 31 and improves the mechanical properties.

[0273] According to the embodiments of this disclosure, a first abutting body 24 and a second abutting body 25 that are parallel to each other are provided at one end of the abutting part 2 that connects to the body 1, which can play a role in strengthening the support and increasing the force-bearing capacity at the connection between the abutting part 2 and the body 1.

[0274] In one embodiment, such as Figure 5 As shown, the first thickness direction C is the direction of the center line of the mounting hole 21 (e.g., Figure 1 As shown, the dimension of the contact portion 2 along the first thickness direction C gradually decreases from the end closer to the body 1 to the end away from the body 1.

[0275] According to the embodiments of this disclosure, it should be noted that:

[0276] The abutment portion 2 corresponds to a structure with gradually decreasing thickness, and the thickness of the end connected to the body 1 is relatively large, and the thickness of the end away from the body 1 is relatively small (that is, the closer the abutment portion 2 is to the body 1, the thicker the thickness is). Since the abutment portion 2 is arranged inclined with respect to the bottom wall 12, the connection between the body 1 and the abutment portion 2 is a weak link of stress, and by increasing the thickness at this position, the carrying capacity of this position can be improved, the mechanical properties are improved, and the service life is further improved.

[0277] According to the embodiment of the present disclosure, by setting the thickness of the abutment portion 2 to be thicker as it is closer to the body 1, the closer the abutment portion 2 is to the body 1, the stronger the stress performance is, and the stronger the fatigue resistance of the connection between the abutment portion 2 and the body 1 is.

[0278] In one embodiment, as shown in Figures 2 to 10 , the number of abutment portions 2 is multiple, and the multiple abutment portions 2 are arranged at intervals along the first direction A.

[0279] According to the embodiment of the present disclosure, it should be noted that:

[0280] The interval between the multiple abutment portions 2 can be selected and adjusted according to the distance between the mounting grooves 31 of the adjacent pipe segments 3 to adapt to the connection of the connecting piece with the multiple mounting grooves 31. For example, one connecting piece can be provided with 2, 3, 4 or 5 abutment portions 2, and these abutment portions 2 can be arranged at equal intervals.

[0281] By providing multiple abutment portions 2, the connection strength between the pipe segment 3 and the connecting piece can be improved, and the firmness of the connection of the load can be improved.

[0282] According to the embodiment of the present disclosure, since the size of the tunnel formed by the pipe segment 3 is large, multiple high-altitude operations are required in the related art. By arranging multiple abutment portions 2 at intervals on the body 1, during the installation of the connecting piece, only a few high-altitude landing operations are required to complete the installation of the connecting piece, reducing the frequency of high-altitude operations and reducing the construction difficulty. And avoid occupying the internal space of the body 1, so that the fastener 28 of the load such as a pipeline can be adjusted at any position in the body 1.

[0283] In one embodiment, at least one of the multiple mounting holes 21 of the multiple abutment portions 2 is a cylindrical hole.

[0284] According to the embodiment of the present disclosure, it should be noted that:

[0285] The diameter of the cylindrical hole can be selected and adjusted according to the diameter of the pipe segment connecting hole 3111, for example, the diameter of the cylindrical hole is slightly larger than the diameter of the pipe segment connecting hole 3111, so that the pipe segment 3 fastener can pass through the cylindrical hole and the pipe segment connecting hole 3111.

[0286] The size (diameter) of the remaining installation holes 21 can be different from the diameter of the pipe piece connecting hole 3111, for example, the size of the remaining installation holes 21 is larger than the diameter of the pipe piece connecting hole 3111, when there is an error in the overlap of the pipe piece 3, the part of the remaining installation holes 21 larger than the pipe piece connecting hole 3111 can alleviate the error caused by the overlap of the pipe piece 3, so that the multiple abutting parts 2 of the connecting piece can be smoothly connected with the multiple installation grooves 31 of the pipe piece 3.

[0287] In addition, the remaining installation holes 21 can also be other shaped installation holes, for example, can be one of oval, cross-shaped and "U" type, etc.

[0288] According to the embodiment of the present disclosure, by setting at least one installation hole 21 as a cylindrical hole to adapt to the pipe piece connecting hole 3111 of the pipe piece 3, the connecting piece is more stably connected with the pipe piece 3, and the remaining installation holes 21 can improve the adjustability of each hole by adopting other shaped installation holes, avoiding the situation that the multiple pipe piece connecting holes 3111 cannot be aligned with the multiple installation holes 21 due to the influence of machining error, etc.

[0289] In one embodiment, the cross-sectional shape of the installation hole 21 is one of circular, oval, cross-shaped and "U" type, with a plane perpendicular to the center line of the installation hole 21 as the cross section.

[0290] According to the embodiment of the present disclosure, it should be noted that:

[0291] The cross section of the installation hole 21 can also be understood as the shape of the through hole formed by the installation hole 21 on the two opposite end faces of the abutting part 2.

[0292] The shape of the installation hole 21 can be selected and adjusted according to the number of installation holes 21, for example, if the connecting piece is provided with two abutting parts 2, and each abutting part 2 is provided with one installation hole 21, then the cross-sectional shape of the two installation holes 21 can be selected as one of the following: one is circular, and the other is oval. Or one is circular, and the other is cross-shaped. Or one is circular, and the other is "U" type. If the connecting piece is provided with three installation holes 21, the cross-sectional shape of the three connecting holes can be selected as one of the following: one is circular, and the other two can be any two shapes of oval, cross-shaped and "U" type. In the case of multiple installation holes 21, by setting one installation hole 21 as a circular hole, and the remaining installation holes 21 as other shaped installation holes 21.

[0293] It can be understood that when the pipe segments 3 are overlapped, the pipe segment connecting holes 3111 required to be aligned with the various mounting holes 21 may not be located on the same arc. By setting the mounting holes 21 in the shapes of an ellipse, a cross, and a "U", each mounting hole 21 can still correspond to each pipe segment connecting hole 3111, that is, the pipe segment fastener 32 can be adjusted in position in the remaining mounting holes 21 to adapt to the pipe segment connecting hole 3111, thereby relieving the problem that the connecting piece cannot be installed due to the error in the overlapping of the pipe segments 3.

[0294] According to an embodiment of the present disclosure, by setting the mounting holes 21 in different shapes, the error generated when the pipe segments 3 are overlapped can be relieved when the connecting piece is installed.

[0295] In one embodiment, as shown in Figure 2 、 Figures 5 to 9 , the bottom wall 12 has a first extension 121 protruding from the outer surface of the first side wall 13, and the first extension 121 extends along the first direction A.

[0296] The abutment portion 2 is connected to the back surface of the bottom wall 12 away from the opening 15, and the abutment portion 2 is located on the side of the first side wall 13 away from the second side wall 14.

[0297] According to an embodiment of the present disclosure, it should be noted that:

[0298] The position of the abutment portion 2 relative to the body 1 can be understood as follows: one end of the abutment portion 2 is arranged on the bottom wall 12, and the other end of the abutment portion 2 extends obliquely away from the second side wall 14 in the direction of the first side wall 13.

[0299] The first extension 121 corresponds to a structure extending from the bottom wall 12 in the direction away from the second side wall 14.

[0300] The relationship between the abutment portion 2 and the first extension 121 can be understood as follows: the part of the abutment portion 2 connected to the body 1 is formed integrally with the first extension 121, for example, the abutment portion 2 is a structure extending from the first extension 121. Or one side end surface of the end connected to the body 1 of the abutment portion 2 (the end surface of one end along the first direction A) is formed integrally with one side end surface of the first extension 121 (the end surface of one end along the first direction A). Such an integrally formed arrangement can increase the stress capacity of the connection between the abutment portion 2 and the body 1.

[0301] According to an embodiment of the present disclosure, by arranging the first extension 121 protruding from the first side wall 13 on the bottom wall 12, the contact area between the bottom wall 12 and the pipe segments 3 is increased, thereby improving the friction between the bottom wall 12 and the pipe segments 3, and thereby improving the mechanical properties of the connecting piece.

[0302] In one embodiment, as shown in Figure 2 、 Figures 5 to 9As shown, the second thickness direction D is perpendicular to the bottom wall 12. Figure 1 As shown, the size of the first extension 121 along the second thickness direction D gradually decreases from the end close to the first side wall 13 to the end away from the first side wall 13.

[0303] According to the embodiments of the present disclosure, it should be noted that:

[0304] The first extension 121 corresponds to a structure with gradually decreasing thickness, and the end connected to the body 1 has relatively large thickness, and the end away from the body 1 has relatively small thickness (i.e., the closer the first extension 121 is to the body 1, the thicker the thickness is), so as to improve the stress capacity of the connection between the first extension 121 and the body 1.

[0305] According to the embodiments of the present disclosure, by setting the thickness of the first extension 121 to be thicker as it is closer to the body 1, the stress performance of the first extension 121 is stronger as it is closer to the body 1, and the fatigue resistance of the connection between the first extension 121 and the body 1 is stronger.

[0306] In one embodiment, as shown in Figure 6 , Figure 7 The abutting portion 2 is located on the side of the first side wall 13 away from the second side wall 14.

[0307] The bottom wall 12 has a second extension 122 protruding from the outer surface of the second side wall 14, and the second extension 122 extends along the first direction A.

[0308] According to the embodiments of the present disclosure, it should be noted that:

[0309] The second extension 122 corresponds to a structure extending from the bottom wall 12 in the direction away from the first side wall 13.

[0310] According to the embodiments of the present disclosure, by setting the second extension 122 protruding from the second side wall 14 on the bottom wall 12, the contact area between the bottom wall 12 and the pipe piece 3 is increased, and the friction between the bottom wall 12 and the pipe piece 3 is improved.

[0311] In one example, as shown in Figure 6 , Figure 7 The bottom wall 12 has a first extension 121 protruding from the outer surface of the first side wall 13, and the first extension 121 extends along the first direction A. The bottom wall 12 has a second extension 122 protruding from the outer surface of the second side wall 14, and the second extension 122 extends along the first direction A. The abutting portion 2 is connected to the back surface of the bottom wall 12 away from the opening 15, and the abutting portion 2 is located on the side of the first side wall 13 away from the second side wall 14.

[0312] In one embodiment, as shown in Figure 7 , Figure 9 ,Figure 10 As shown in FIG. 1, the back surface of the bottom wall 12 away from the opening 15 has a first rough part 123 for increasing surface roughness.

[0313] According to an embodiment of the present disclosure, by arranging the first rough part 123 on the back surface of the bottom wall 12 away from the opening 15, the roughness between the contact surfaces is increased, and the friction between the back surface and the pipe piece 3 is further increased, so that the contact surface stability between the body 1 and the concrete surface of the pipe piece 3 is improved.

[0314] In one embodiment, the first rough part 123 includes a plurality of first micro-protrusions extending in a first direction A, and the plurality of first micro-protrusions are arranged in a second direction B perpendicular to the first side wall 13.

[0315] According to an embodiment of the present disclosure, it should be noted that:

[0316] The arrangement relationship between the plurality of first micro-protrusions can be understood as: any first micro-protrusion in the plurality of first micro-protrusions extends in the first direction A. The plurality of first micro-protrusions are arranged at intervals.

[0317] The shape of the first micro-protrusion can be selected and adjusted as needed, for example, an arc-shaped micro-protrusion, a tooth-shaped micro-protrusion, etc.

[0318] According to an embodiment of the present disclosure, by arranging a plurality of strip-shaped first micro-protrusions on the back surface of the bottom wall 12 away from the opening 15, the roughness between the contact surfaces can be further increased, the friction between the back surface and the pipe piece 3 is increased, and the contact surface stability between the body 1 and the concrete surface of the pipe piece 3 is improved.

[0319] In one embodiment, as shown in FIG. 1, the abutting part 2 for abutting against the end surface of the groove wall 311 has a second rough part 27 for increasing surface roughness. Figures 8 to 10

[0320] According to an embodiment of the present disclosure, by arranging the second rough part 27 on the side end surface of the abutting part 2 and the groove wall 311 of the mounting groove 31 abutting against each other, the roughness of the contact surface is increased, and the friction between the abutting part 2 and the groove wall 311 is further increased, thereby improving the structural stability of the fixed part of the abutting part 2.

[0321] In one example, Figure 9 , Figure 10 As shown in FIG. 1, the back surface of the bottom wall 12 away from the opening 15 has a first rough part 123 for increasing surface roughness. The abutting part 2 for abutting against the end surface of the groove wall 311 has a second rough part 27 for increasing surface roughness.

[0322] ​According to the examples of the present disclosure, the first rough part 123 is arranged on the back surface of the bottom wall 12 away from the opening 15 to increase the roughness of the contact surface between the back surface and the pipe piece 3, and to increase the friction between the back surface and the pipe piece 3. The second rough part 27 is arranged on the side end surface of the abutting part 2 abutting against the groove wall 311 of the mounting groove 31 to increase the roughness of the contact surface between the abutting part 2 and the groove wall 311, and to increase the friction between the abutting part 2 and the groove wall 311, thereby increasing the stability of the connecting piece after being fixed to the pipe piece 3. Moreover, since the first rough part 123 and the second rough part 27 are arranged on the contact surfaces in two different directions, when the connecting piece is subjected to force (i.e. when the connecting piece is used to hang the load), the two contact surfaces of the connecting piece are subjected to traction in different directions, thereby further improving the stability of the connecting piece after being fixed.

[0323] In one embodiment, the second rough part 27 includes a plurality of second micro-protrusions extending along a third direction E, and the plurality of second micro-protrusions are arranged along a fourth direction F, and the third direction E, the fourth direction F and the center line direction of the mounting hole 21 are perpendicular to each other.

[0324] According to the embodiments of the present disclosure, it should be noted that:

[0325] The third direction E and the fourth direction F are as shown in Figure 1 .

[0326] The arrangement relationship between the plurality of second micro-protrusions can be understood as: any second micro-protrusion in the plurality of second micro-protrusions extends along the third direction E. The plurality of second micro-protrusions are arranged at intervals.

[0327] The shape of the second micro-protrusion can be selected and adjusted as needed, for example, an arc-shaped micro-protrusion, a tooth-shaped micro-protrusion, etc.

[0328] According to the embodiments of the present disclosure, the plurality of second micro-protrusions are arranged on the side end surface of the abutting part 2 abutting against the groove wall 311 of the mounting groove 31 to increase the roughness of the contact surface between the abutting part 2 and the groove wall 311, and to increase the friction between the abutting part 2 and the groove wall 311, thereby improving the structural stability of the fixed part of the abutting part 2.

[0329] In one example, as shown in Figure 10 , the abutting part 2 includes an abutting part body 22 and a support body 23 arranged obliquely relative to the abutting part body 22, the abutting part body 22 is connected to the body 1, the first end of the support body 23 is connected to the abutting part body 22, the second end of the support body 23 is connected to the body 1, at least part of the abutting part body 22 is located on the side of the support body 23 away from the body 1, and the mounting hole 21 is arranged on at least part of the abutting part body 22.

[0330] The support body 23 constitutes a first connecting body, the portion between the body 1 and the second end of the support body 23 constitutes a second connecting body, and the gap between the abutment portion body 22 and the support body 23 constitutes a first gap.

[0331] The bottom wall 12 has a first extension 121 protruding from the outer surface of the first side wall 13, and the first extension 121 extends along the first direction A. The bottom wall 12 has a second extension 122 protruding from the outer surface of the second side wall 14, and the second extension 122 extends along the first direction A. The abutment portion 2 is connected to the back of the bottom wall 12 away from the opening 15, and the abutment portion 2 is located on the side of the first side wall 13 away from the second side wall 14. The back of the bottom wall 12 away from the opening 15 has a first rough part 123 for increasing the surface roughness. The abutment portion 2 for abutting against the end face of the groove wall 311 has a second rough part 27 for increasing the surface roughness.

[0332] According to the examples of the present disclosure, the stress capacity of the connection between the abutment portion 2 and the body 1 is improved, and the contact area between the connecting member and the segment 3 is increased, thereby improving the friction between the connecting member and the segment 3.

[0333] In one example, as shown in Figure 7 The second extension 122 has a third rough part on the side end face for connecting with the segment 3, which extends along the first direction A. By providing the third rough part on the second extension 122, the roughness between the contact surfaces is increased, the friction between the second extension 122 and the segment 3 is increased, and the stability between the body 1 and the concrete surface of the segment 3 is improved.

[0334] In one example, the connecting member is made of aluminum alloy, and the processing method is generally through extrusion molding, cutting the abutment portion 2, drilling the mounting hole 21, and bending the abutment portion 2 to form an integrated connecting member. Compared with the existing processing method of the steel segment 3 (generally roll-pressing-bending-ear hanging blanking (plate processing)-welding) to form a lap type device, it has better fatigue resistance.

[0335] In one example, the edge of the abutment portion 2 can be provided with a bending part, which can be bent at a certain angle relative to the abutment portion 2 and can be connected with the inner side wall of the mounting groove 31. It can be understood that the abutment portion 2 can be connected with the bottom wall of the mounting groove 31, and the bending part can be connected with the inner side wall of the mounting groove 31 and the bottom wall.

[0336] According to the examples of the present disclosure, by providing the bending part for connecting with the inner side wall of the mounting groove 31 on the abutment portion 2, when the connecting member is installed, the contact area between the connecting member and the segment 3 can be increased, the friction between them can be increased, and the stability of the connecting member can be improved.

[0337] In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present disclosure.

[0338] In addition, the terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0339] In the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection, or communication; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0340] In the present disclosure, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0341] The foregoing disclosure provides many different embodiments or examples for implementing different structures of the present disclosure. For simplicity of disclosure, the foregoing description has focused on certain examples. In the interest of clarity, not all components of these examples have been described. Of course, it is contemplated that various embodiments of the present disclosure can be implemented in various ways, encompassing multiple examples. Also, the disclosure can repeat reference numerals and / or letters in different examples and / or variations thereof; this repetition is for the purpose of simplicity and clarity and does not necessarily indicate a common function among different embodiments and / or variations of the present disclosure.

[0342] The specific embodiments have been described in order to provide as complete an understanding as possible of the various embodiments of the present disclosure. In the interest of clarity, not all contemplated embodiments have been described. It will be appreciated that the various embodiments of the present disclosure can be implemented in different ways, including with other components, methods, structures, and / or combinations of particular embodiments. Any modifications of the methods and / or devices described herein, which are within the spirit and scope of the disclosure, are to be considered as falling within the scope of the present disclosure.

Claims

1. A connection, characterized in that The utility model relates to a connecting piece for connecting a pipe piece and a mounting groove of a pipe support, and belongs to the field of pipe supports. The connecting piece comprises: a body comprising a bottom wall extending in a first direction and oppositely arranged first and second side walls connected to the bottom wall, the first and second side walls extending in the same direction as the bottom wall, and the body having an opening for allowing a fastener to pass through the opening into the body so as to connect the fastener with the body; an abutting portion located outside the body and connected to the bottom wall and / or the first side wall, the abutting portion being arranged obliquely relative to the bottom wall and integrally formed with the body as a whole, the abutting portion being used to abut against the groove wall of the mounting groove of the pipe piece when the bottom wall abuts against the pipe piece; the abutting portion is provided with a mounting hole for communicating with a pipe piece connecting hole on the groove wall so that a pipe piece fastener can pass through the pipe piece connecting hole and the mounting hole and be fixedly connected with the pipe piece. The abutting portion has first and second connecting bodies at one end thereof towards the body, and the abutting portion is connected with the body through the first and second connecting bodies, and a first gap is formed between the first and second connecting bodies. The bottom wall has a first extension protruding from the outer surface of the first side wall, and the portion of the abutting portion connected with the body is integrally formed with the first extension.

2. The connecting piece according to claim 1, wherein: the abutting portion comprises an abutting portion main body connected to the body and a support body arranged obliquely relative to the abutting portion main body, a first end of the support body being connected to the abutting portion main body, a second end of the support body being connected to the body, and at least part of the abutting portion main body being located on the side of the support body away from the body, and the mounting hole being arranged on the at least part of the abutting portion main body; 3. The connection of claim 2, wherein the support body constitutes the first connecting body, the portion of the abutting portion main body between the body and the first end of the support body constitutes the second connecting body, and the gap between the abutting portion main body and the support body constitutes the first gap. The abutting portion main body and the second end of the support body are both connected to the first side wall.

4. The connecting piece according to claim 1, wherein: the abutting portion comprises first and second abutting bodies parallel to each other and a pad body located between the first and second abutting bodies, the first and second abutting bodies being both connected to the body, and the mounting hole penetrating through the first and second abutting bodies and the pad body; and the first and second abutting bodies, the pad body and the body have the first gap therebetween, the portion of the first abutting body between the pad body and the body constitutes the first connecting body, and the portion of the second abutting body between the pad body and the body constitutes the second connecting body.

5. The connection of claim 4, wherein The first abutting body protrudes from the pad body at one end away from the body, and the second abutting body protrudes from the pad body at one end away from the body.

6. The connection of claim 4, wherein The first abutting body, the second abutting body and the pad body are integrally formed as an integral piece.

7. The connector of claim 1, wherein In a first thickness direction of a center line direction of the mounting hole, a size of the abutting portion in the first thickness direction gradually decreases from one end close to the body to one end away from the body.

8. The connection of any one of claims 1 to 7, characterized in that The number of the abutting portions is multiple, and the multiple abutting portions are arranged at intervals in the first direction.

9. The connection of claim 8, wherein At least one of the multiple mounting holes of the multiple abutting portions is a cylindrical hole.

10. The connection of any one of claims 1 to 7, wherein, In a cross section of a plane perpendicular to the center line of the mounting hole, the cross section shape of the mounting hole is one of a circular shape, an elliptical shape, a cross shape and a "U" shape.

11. The connector according to any one of claims 1 to 7, wherein The first extension portion extends in the first direction. The abutting portion is connected to a back surface of the bottom wall away from the opening, and the abutting portion is located on a side of the first side wall away from the second side wall.

12. The connection of claim 11, wherein, In a second thickness direction perpendicular to the direction of the bottom wall, a size of the first extension portion in the second thickness direction gradually decreases from one end close to the first side wall to one end away from the first side wall.

13. The connector according to any one of claims 1 to 7, wherein The abutting portion is located on a side of the first side wall away from the second side wall. The bottom wall has a second extension portion protruding from an outer surface of the second side wall, and the second extension portion extends in the first direction.

14. The connection of any one of claims 1 to 7, wherein, A back surface of the bottom wall away from the opening has a first rough portion for increasing surface roughness.

15. The connection of claim 14, wherein, The first rough portion includes multiple first micro-protrusions extending in the first direction, and the multiple first micro-protrusions are arranged in a second direction perpendicular to the first side wall.

16. The connection of any one of claims 1 to 7, wherein, The abutting portion for abutting against an end surface of the groove wall has a second rough portion for increasing surface roughness.

17. The connection of claim 16, wherein The second rough portion includes multiple second micro-protrusions extending in a third direction, and the multiple second micro-protrusions are arranged in a fourth direction, the third direction, the fourth direction and the center line direction of the mounting hole being perpendicular to each other.

18. The connection of any of claims 1-7, wherein, The connector is an aluminum alloy connector composed of an aluminum alloy material.

19. The connector according to any one of claims 1 to 7, wherein The mounting hole is used for penetrating a bolt in the pipe piece fastener, and the abutting portion is arranged at one end of the bolt used for connecting a nut in the pipe piece fastener.

20. A pipe segment device, characterized by A pipe piece and a connector are included. The pipe piece has a mounting groove, and a groove wall of the mounting groove is provided with a pipe piece connecting hole. The pipe piece has a mounting groove, and a groove wall of the mounting groove is provided with a pipe piece connecting hole. The connecting piece comprises a body and an abutting portion, the body comprises a bottom wall extending in a first direction and oppositely arranged first and second side walls connected to the bottom wall, the extending directions of the first and second side walls are the same as that of the bottom wall, the position of the body away from the bottom wall has an opening for allowing a fastener to pass through the opening into the body so as to connect the fastener with the body; The abutting portion is located outside the body and is connected to the bottom wall and / or the first side wall, the abutting portion is arranged obliquely relative to the bottom wall and is integrally formed with the body as an integral piece, the abutting portion is used to abut against the slot wall of the mounting slot when the bottom wall abuts against the segment; The abutting portion has a first connector and a second connector at one end thereof towards the body, the abutting portion is connected with the body through the first and second connectors, and the first and second connectors have a first gap therebetween; The bottom wall has a first extension protruding from the outer surface of the first side wall, and the portion of the abutting portion connected with the body is integrally formed with the first extension.

21. The segment device according to claim 20, wherein The abutting portion comprises an abutting portion main body and a support body arranged obliquely relative to the abutting portion main body, the abutting portion main body is connected with the body, the first end of the support body is connected with the abutting portion main body, the second end of the support body is connected with the body, at least part of the abutting portion main body is located on the side of the support body away from the body, and the mounting hole is arranged on the at least part of the abutting portion main body; The support body constitutes the first connector, the portion of the abutting portion main body between the body and the first end of the support body constitutes the second connector, and the gap between the abutting portion main body and the support body constitutes the first gap.

22. The pipe segment device of claim 21, wherein, The abutting portion main body and the second end of the support body are both connected with the first side wall.

23. The segment device according to claim 20, wherein The abutting portion comprises a first abutting body and a second abutting body parallel to the first abutting body and a pad body located between the first and second abutting bodies, the first and second abutting bodies are both connected with the body, and the mounting hole penetrates through the first and second abutting bodies and the pad body; The first and second abutting bodies, the pad body and the body have the first gap therebetween, the portion of the first abutting body between the pad body and the body constitutes the first connector, and the portion of the second abutting body between the pad body and the body constitutes the second connector.

24. The pipe section device according to claim 23, characterized in that The first abutting body protrudes from the pad body at one end away from the body, and the second abutting body protrudes from the pad body at one end away from the body.

25. The pipe segment device of claim 23, wherein, The first abutting body, the second abutting body, and the pad body are integrally formed as one piece.

26. The pipe segment device of claim 20, wherein, In a first thickness direction of a center line direction of the mounting hole, a size of the abutting portion in the first thickness direction gradually decreases from one end close to the body to one end away from the body.

27. The pipe section device according to any one of claims 20 to 26, characterized in that The number of the abutting portions is multiple, and the multiple abutting portions are arranged at intervals in the first direction.

28. The pipe section device according to claim 27, characterized in that At least one of the multiple mounting holes of the multiple abutting portions is a cylindrical hole.

29. The pipe section device according to any one of claims 20 to 26, characterized in that In a cross-sectional shape of the mounting hole in a plane perpendicular to the center line of the mounting hole, the cross-sectional shape of the mounting hole is one of a circular shape, an elliptical shape, a cross shape, and a "U" shape.

30. The segment device according to any one of claims 20 to 26, wherein The first extension portion extends in the first direction. The abutting portion is connected to a back surface of the bottom wall away from the opening, and the abutting portion is located on a side of the first side wall away from the second side wall.

31. The pipe segment device of claim 30, wherein, In a second thickness direction perpendicular to the direction of the bottom wall, a size of the first extension portion in the second thickness direction gradually decreases from one end close to the first side wall to one end away from the first side wall.

32. The segment device according to any one of claims 20 to 26, wherein The abutting portion is located on a side of the first side wall away from the second side wall. The bottom wall has a second extension portion protruding from an outer surface of the second side wall, and the second extension portion extends in the first direction.

33. The pipe section device according to any one of claims 20 to 26, characterized in that A back surface of the bottom wall away from the opening has a first rough portion for increasing surface roughness.

34. The pipe section device of claim 33, wherein, The first rough portion includes multiple first micro-protrusions extending in the first direction, and the multiple first micro-protrusions are arranged in a second direction perpendicular to the first side wall.

35. The pipe section device according to any one of claims 20 to 26, characterized in that The abutting portion for abutting against an end surface of the groove wall has a second rough portion for increasing surface roughness.

36. The pipe section device according to claim 35, characterized in that The second rough portion includes multiple second micro-protrusions extending in a third direction, and the multiple second micro-protrusions are arranged in a fourth direction, the third direction, the fourth direction, and a center line direction of the mounting hole being perpendicular to each other.

37. The pipe section device according to any one of claims 20 to 26, characterized in that The connecting member is an aluminum alloy connecting member composed of an aluminum alloy material.

38. The segment device according to any one of claims 20 to 26, wherein A bolt in the segment fastener passes through the mounting hole, and the abutting portion is arranged at one end of a nut in the segment fastener connected by the bolt.

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