CN115539083A - Annular combined type shield tunnel segment circular seam connecting device - Google Patents

Abstract

The invention discloses an annular combined type shield tunnel segment annular seam connecting device which comprises an annular seam connecting socket assembly and an annular seam connecting head, wherein the annular seam connecting head comprises an embedded part embedded in a first tube segment, a connecting column is arranged on the embedded part, the connecting column is provided with a conical matching column segment, the annular seam connecting socket assembly comprises a socket main body and a socket shell embedded in a second tube segment, the socket main body is limited in the socket shell, the socket main body is provided with a jack, the jack is provided with a conical matching hole segment which is used for being correspondingly matched with the conical matching column segment of the connecting column, the socket main body is formed by splicing a plurality of splicing blocks distributed on the axial lead of the annular socket main body, an elastic fixing ring is sleeved on the outer wall of the socket main body, a through hole for the conical matching column segment of the connecting column to pass through is arranged on the socket shell, one end of the through hole is communicated with the jack of the socket main body, and the other end of the through the socket shell. The invention can ensure reliable anti-loose combination effect after matching and connection and has better connection strength.

Description

Annular combined type shield tunnel segment circular seam connecting device

Technical Field

The invention belongs to the technical field of tunnel shield segment installation, and particularly relates to an annular combined type shield tunnel segment circular seam connecting device.

Background

The tunnel shield section of jurisdiction carries out more important installation component in the tunnel engineering work progress at present, forms the annular section of jurisdiction after splicing the section of jurisdiction, and the annular section of jurisdiction cooperates the connection through the circumferential weld connecting piece when carrying out the length combination of center pin direction. The novel connecting piece of present section of jurisdiction circumferential weld is through being equipped with built-up connection cooperation post on the section of jurisdiction when carrying out the circumferential weld equipment, through combining in inserting the cooperation hole on the last ring pipe piece with built-up connection cooperation post, and the combination compactness of built-up connection cooperation post can't reach locking fastening cooperation when cooperating, and joint strength is than poor.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the annular combined type shield tunnel segment annular seam connecting device which can ensure that the annular combined type shield tunnel segment annular seam connecting device has reliable anti-loosening combination effect after matched connection and has better connecting strength.

The technical scheme of the invention is realized as follows: the invention discloses an annular combined type shield tunnel segment circular seam connecting device which comprises a connecting socket assembly and a connector, wherein the connector comprises a pre-buried part which is pre-buried in a first tube, a connecting column which is matched and connected with the connecting socket assembly is arranged on the pre-buried part, the connecting column is provided with a conical matching column section, the connecting socket assembly comprises a socket main body and a socket shell which is pre-buried in a second tube, the socket shell is provided with an installation cavity for installing the socket main body and a through hole for inserting the connecting column of the connector into the installation cavity, the socket main body is limited in the installation cavity of the socket shell, a distance is arranged between the outer wall of the socket main body and the inner wall of the socket shell, the socket main body is provided with a jack for inserting the connecting column of the connector, the jack is provided with a conical matching hole section which is correspondingly matched with the conical matching column section of the connecting column, the socket main body is formed by splicing a plurality of splicing blocks, an elastic fixing ring is arranged on the outer wall of the socket main body, one end of the through hole is communicated with the jack of the socket main body, and the other end of the through hole penetrates through the socket shell.

Furthermore, a plurality of splicing block ring socket main bodies are distributed on the axis line.

Furthermore, the connecting column is provided with at least one section of conical matching column section, the jack of the socket main body is provided with at least one section of conical matching hole section, the aperture of each conical matching hole section of the socket main body is gradually reduced along the inserting direction of the connecting column of the connector, and the outer diameter of each conical matching column section of the connecting column of the connector is gradually reduced along the inserting direction; when the conical matching column section of the connecting column is matched in the conical matching hole section of the socket main body, the end surface of at least one section of the conical matching column section of the connecting column is contacted with the backstop surface in the jack of the socket main body.

Furthermore, a plurality of sections of conical matching column sections are arranged on the connecting column and are connected in sequence; the jack of socket main part has multistage toper cooperation hole section, and multistage toper cooperation hole section links to each other in proper order.

Furthermore, a cylindrical section is arranged between the conical matching column section and the embedded part of the connecting column, and the diameter of the cylindrical section is smaller than the maximum diameter of the conical matching column section.

Further, the diameter of the cylindrical section is equal to the smallest diameter of the tapered mating cylindrical section.

Furthermore, the end of the connecting column is provided with a guide column section; the one end that socket subject's jack is close to the via hole is equipped with the direction conical surface, the other end that the via hole was kept away from to socket subject's jack is equipped with keeps away the position hole section, toper cooperation hole section is located the direction conical surface and keeps away between the position hole section.

Further, the maximum outer diameter of the conical guide column section of the connecting column end is equal to the minimum diameter of the conical matching column section.

The position avoiding hole section is a cylindrical hole, and the aperture of the position avoiding hole section is larger than the minimum aperture of the conical matching hole section.

Further, the outer diameter of the conical guide post section of the connecting post is gradually reduced in its insertion direction.

Further, the outer wall of the socket body is provided with a groove surrounding the socket body, and the elastic fixing ring is located in the groove. The plurality of grooves are spaced apart along an axial direction of the socket body.

Further, the elastic fixing ring is located between the outer wall of the socket main body and the inner wall of the socket shell and is in contact with the outer wall of the socket main body and the inner wall of the socket shell respectively.

Further, socket shell includes end cover and casing, the casing is equipped with the installation cavity that is used for installing socket main body, the one end of installation cavity runs through casing one end, the other end that the casing is located the installation cavity sets up the via hole, the one end and the installation cavity intercommunication of via hole, the other end of via hole run through the casing other end, the aperture of installation cavity is greater than the aperture of via hole, the one end fixed connection of via hole is kept away from with the casing to the end cover, socket main body axial is spacing in the installation cavity of casing.

Further, the end cover is fixedly connected with the shell through threads; the end cover is provided with a fastening connecting column, the fastening connecting column extends into the mounting cavity of the shell, the end cover is positioned with the spigot of the shell, the outer wall of the fastening connecting column is provided with threads, and the mounting cavity of the shell is provided with internal threads which are matched with the threads of the fastening connecting column of the end cover. The fastening connection column can also axially limit the socket main body.

Furthermore, the end cover is a stepped cylinder, the small-diameter section of the end cover extends into the mounting cavity of the shell, and the large-diameter section of the end cover is located outside the mounting cavity of the shell. The outer wall of the small-diameter section of the end cover is provided with threads, and one end, far away from the through hole, of the installation cavity of the shell is provided with internal threads for being in threaded fit with the small-diameter section of the end cover.

One end of the socket main body is limited through the end cover, and the other end of the socket main body is limited through a step surface in the shell.

Furthermore, a guiding conical surface is arranged at the inlet end of the through hole of the socket shell.

Furthermore, the embedded part of the circular seam connector and the connecting column are integrally formed.

Further, the shape and the external dimension of the end cover and the shell are completely the same.

Furthermore, the projections of the shell and the embedded part in the left-right direction are circular or polygonal.

The invention has at least the following beneficial effects:

1. when the invention is used, the hand holes do not need to be reserved on the duct piece, the integrity of the duct piece is ensured, the self strength of the duct piece during combination is ensured, the problem of stress concentration at the joint matching position caused by the hand holes reserved at the section position is reduced, and the self rigidity and the bearing capacity of the duct piece are improved.

2. The invention can replace the use of a shear pin when in use, thereby improving the shearing resistance of the duct piece, ensuring stronger convenience in combination and more convenient combination operation.

3. The invention has higher matching precision when being integrally combined, ensures that the integral precision of the tunnel is higher than that of the traditional bolt connection after the duct pieces are assembled, and the quantity of wrong platforms of the duct pieces is smaller.

4. The invention ensures that the tightness of the pipe pieces is better when the pipe pieces are connected, no hand holes are reserved around the pipe pieces, the integral tightness of the pipe piece combination is ensured, and the waterproof and anti-permeability capability is stronger when the pipe piece combination is used.

5. The invention has higher construction efficiency when being combined, reduces labor and time cost, improves the combination precision, ensures the smoothness of the inner arc surface of the duct piece, avoids secondary lining and reduces the material cost.

6. The invention has more reliable connection strength, stronger durability and longer integral combined service life in the later use process.

7. The invention avoids the damage of the matching position in the process of combination, has reliable anti-loosening performance after combination, and greatly improves the integral connection firmness compared with the prior structure.

8. The socket has the advantages that the installation operation of the internal structure such as the socket main body is more convenient during production and combination, the efficiency is higher during the combination of the internal structure, and the safety is better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a circular seam connecting device for annular combined shield tunnel segments according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a circular seam connector according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a circumferential seam connection socket assembly provided by an embodiment of the present invention;

fig. 4 is a schematic side view of a socket body according to an embodiment of the invention.

In the figure: 1 is the casing, 2 is the end cover, 3 is the installation cavity, 4 is the via hole, 5 is the toper guide way of casing, 6 is socket main body, 7 is the concatenation piece, 8 is the recess, 9 is the elastic fixation circle, 10 is toper cooperation hole section, 11 is socket main body's toper guide way, 12 is for keeping away the position hole section, 13 faces of moving back, 21 is pre-buried portion, 22 is the spliced pole, 23 is toper cooperation post section, 24 is toper guide post section, 25 is the terminal surface of toper cooperation post section.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, the meaning of "a plurality" or "a plurality" is two or more unless otherwise specified.

Referring to fig. 1 to 4, the embodiment of the invention provides an annular combined type shield tunnel segment annular seam connecting device, which comprises an annular seam connecting socket assembly and an annular seam connector, wherein the annular seam connector comprises a pre-buried part 21 pre-buried in a first segment, a connecting column 22 used for being connected with the annular seam connecting socket assembly in a matched manner is arranged on the pre-buried part 21, the connecting column 22 is provided with a conical matching segment 23, the annular seam connecting socket assembly comprises a socket main body 6 and a socket shell pre-buried in a second segment, the socket shell is provided with a mounting cavity 3 for mounting the socket main body and a through hole 4 for inserting the connecting column of the connector into the mounting cavity, the socket main body 6 is axially limited in the mounting cavity 3 of the socket shell, a distance is arranged between the outer wall of the socket main body 6 and the inner wall of the socket shell, the socket main body 6 is provided with a jack for inserting the connecting column 22 of the annular seam connector, the jack is provided with a conical matching hole segment 10 correspondingly matched with the conical matching segment 23 of the connecting column 22, the socket main body 6 is formed by splicing blocks 7 distributed on the axial lead of a plurality of annular socket main bodies 6, the splicing blocks, the outer wall of the connecting column 6 is spliced with the socket main body 9, and the jack, and the other end of the socket main body is communicated with the socket shell, and the jack of the socket main body 6.

The jacks are formed in the middle of the spliced blocks of the socket main body 6.

Preferably, the embedded part of the circular seam connector and the connecting column are integrally formed.

The outer diameter of the socket body 6 is smaller than the inner diameter of the mounting cavity 3 of the socket housing.

The distance between the outer wall of the socket body 6 and the inner wall of the mounting cavity is greater than or equal to the difference between the maximum and minimum outer diameters of the tapered mating post segment 23.

The maximum outer diameter of the tapered mating post section 23 is greater than the minimum bore diameter of the tapered mating bore section.

Preferably, the minimum outer diameter of the tapered mating post segment 23 is less than or equal to the minimum bore diameter of the tapered mating bore segment. The maximum outer diameter of the conical matching column section 23 is smaller than or equal to the maximum aperture of the conical matching hole section, so that the conical matching column section 23 can be correspondingly matched in the conical matching hole section, and the connecting column can only move forward and cannot move backward.

Preferably, the axial length of the tapered mating bore section is the same as the axial length of the tapered mating post section.

Preferably, the number of tapered mating bore sections is greater than the number of tapered mating post sections.

The taper direction of each tapered mating bore section 10 is the same, towards the direction of insertion of the connection post. The taper direction of each tapered mating post segment 23 is the same, facing the insertion direction of the connecting post.

Preferably, the connecting column 22 is provided with at least one section of conical matching column section 23, the jack of the socket main body 6 is provided with at least one section of conical matching hole section 10, the hole diameter of each conical matching hole section 10 of the socket main body 6 is gradually reduced along the inserting direction of the connecting column 22 of the circumferential seam connector, and the outer diameter of each conical matching column section 23 of the connecting column 22 of the circumferential seam connector is gradually reduced along the inserting direction; when the tapered mating post section 23 of the connection post 22 is mated within the tapered mating bore section 10 of the socket body 6, the end face 25 of at least one tapered mating post section 23 of the connection post 22 contacts the backstop surface 13 within the receptacle of the socket body 6.

Preferably, a plurality of conical matching column sections 23 are arranged on the connecting column 22, and the conical matching column sections 23 are sequentially connected; the jack of the socket main body 6 is provided with a plurality of conical matching hole sections 10, and the conical matching hole sections 10 are connected in sequence.

Preferably, a cylindrical section is arranged between the conical matching column section 23 and the embedded part 21 of the connecting column 22, and the diameter of the cylindrical section is smaller than the maximum diameter of the conical matching column section 23.

Preferably, the diameter of the cylindrical section is equal to the smallest diameter of the tapered mating cylindrical section 23.

Preferably, the end of the connecting column 22 is provided with a conical guide column section 24, one end of the jack of the socket body, which is close to the via hole, is provided with a guide conical surface 11, the other end of the jack of the socket body 6, which is far away from the via hole, is provided with a position-avoiding hole section 12, and the conical matching hole section 10 is located between the guide conical surface 11 and the position-avoiding hole section 12.

The maximum outer diameter of the tapered guide post section 24 at the end of the connecting post 22 is equal to the minimum diameter of the tapered mating post section 23.

The tapered guide post section 24 of the attachment post 22 has an outer diameter that tapers in the direction of insertion thereof.

Preferably, the outer wall of the socket body 6 is provided with a groove 8 arranged around the socket body 6, and the elastic fixing ring 9 is located in the groove 8.

Preferably, the plurality of grooves are spaced apart along the axial direction of the socket body. The number of the grooves is set according to the requirement.

Preferably, the elastic fixing ring 9 is located between the outer wall of the socket body 6 and the inner wall of the socket housing, and is in contact with the outer wall of the socket body 6 and the inner wall of the socket housing, respectively.

As preferred, socket shell includes end cover 2 and casing 1, casing 1 is equipped with installation cavity 3 that is used for installing socket main body 6, 1 one end of casing is run through to the one end of installation cavity 3, the other end that casing 1 is located installation cavity 3 sets up via hole 4, the one end and the installation cavity 3 intercommunication of via hole 4, the other end of via hole 4 runs through the 1 other end of casing, the aperture of installation cavity 3 is greater than the aperture of via hole 4, forms the shoulder hole, the one end fixed connection of via hole 4 is kept away from with casing 1 to end cover 2, socket main body 6 axial is spacing in installation cavity 3 of casing 1.

Preferably, the length of the mounting cavity 3 in the left-right direction is greater than half of the length of the housing 1 in the left-right direction.

Preferably, the end cap 2 is fixedly connected with the housing 1 through threads.

Preferably, the inlet end of the through hole of the housing 1, i.e. the end of the through hole 4 far away from the mounting cavity 3, is provided with a guiding conical surface 5.

Specifically, via hole 4 includes cylinder hole section and toper spigot, and the one end of cylinder hole section links to each other the intercommunication with installation cavity 3, and the other end and the spigot hole section of cylinder hole section link to each other the intercommunication. The tapered guide opening is large outside and small inside.

Preferably, the end cap 2 is combined with the housing 1 by means of screw connection. The end cover is fixedly connected with the shell through threads; be equipped with the fastening spliced pole on the end cover, the fastening spliced pole stretches into the installation cavity of casing, and the end face contaction (the fastening spliced pole carries out the axial to socket main body spacingly to socket main body 6, and only to 6 axial spacingly of socket main body, does not inject the radial degree of freedom of the concatenation piece of socket main body 6) with socket main body 6, and end cover and casing tang location, be equipped with the screw thread on the outer wall of fastening spliced pole, the installation cavity of casing is equipped with the internal thread that is used for with the fastening spliced pole screw-thread fit of end cover. The structure ensures that the connecting pieces have better stability when combined, lower combined connecting cost when in use and stronger convenience when the connecting pieces are produced and combined.

Preferably, the elastic fixing ring 9 is made of rubber material, other materials in the prior art, such as flexible plastic, etc., can be adopted, the cost is relatively lower when the rubber material is adopted, and the deformation amount during installation and matching is relatively larger.

Preferably, the cross-sectional shape of the elastic fixing ring 9 is an arc or a polygonal structure, so that the strength of the elastic fixing ring can be better when the polygonal structure is adopted to meet the use requirement, the stability of the elastic fixing ring in the matching process is better, and a certain matching positioning effect is achieved.

Preferably, the thickness of the cross section of the elastic fixing ring 9 is half of the depth of the groove 8, so that the matching stability at the position is better, the strength of the elastic fixing ring 9 can be maximized, and the matching connection safety can be further improved.

Preferably, the end cap 2 and the housing 1 have the same shape and size, so that they have better flatness and are more convenient to install and use. The casing 1 with the projection of pre-buried portion 21 in left and right directions is polygonized structure, and the cooperation fastness when fusing together with the section of jurisdiction is higher when using, and the combination fastness when the combined use can be stronger.

Preferably, the projections of the housing 1 and the embedded part 21 in the left-right direction are both cylindrical structures, which is more convenient in production and processing, and can improve the production efficiency of the structures.

Preferably, the length of the left and right direction distribution area of the conical matching hole section 10 is greater than that of the left and right direction distribution area of the conical matching column section 23, so that the combination space of the clamping positions can be ensured to be larger, the connection operation during the whole combination is more convenient, all clamping structures of the circular seam connector can be ensured to be positioned in the conical matching hole section 10, and the whole anti-loose firmness during the use can be further improved.

Preferably, the splice 7 is made of a metal material, such as an alloy material, a steel material, etc., so that the fitting strength can be further increased and the service life can be also increased. The structure can also be produced and processed by adopting materials such as concrete and the like, the production cost is lower, and the structure can also be produced by adopting materials such as plastics, but the matching strength is limited.

The number of the splicing blocks 7 is set as required, and preferably, the number of the splicing blocks 7 is three, so that the matching operation during splicing is easier during production of the connecting piece, the strength of each splicing block 7 is better, the overall stability is better guaranteed, and the production cost is relatively low.

The annular combined type shield tunnel segment annular seam connecting device comprises an annular seam connector and an annular seam connecting socket assembly which are inserted and combined together, when the annular seam connecting device is used, the annular seam connector and the annular seam connecting socket assembly can be respectively fused with a splicing end of a segment structure needing annular seam connection, and when the annular seam connecting device is combined, rapid insertion and combination can be achieved. The socket shell of the circular seam connection socket assembly consists of a shell body 1 and an end cover 2, so that the structure is easier to produce and process, and the circular seam connection socket assembly is formed by adopting a sub-structure for connection. The left side central point of casing 1 puts and is equipped with cylindrical installation cavity 3, the right side of installation cavity 3 be equipped with the cylindrical via hole 4 that 1 right side of casing run through completely, the right side border position of via hole 4 is equipped with the direction conical surface 5, plays the effect of cooperation direction in the combination in-process, ensures that the whole cooperation operation when carrying out the combination of section of jurisdiction is easier. The right side of the end cover 2 is provided with a fastening connecting column connected with the mounting cavity 3, and the fastening connecting column and the mounting cavity are combined together to form an integral structure. And a cylindrical socket main body is arranged between the right end face of the fastening connecting column and the right end face of the mounting cavity 3. The distance between the right side terminal surface of fastening spliced pole with the right side terminal surface of installation cavity 3 is greater than half of direction length about casing 1, the connection space when the guarantee cooperates is bigger, and the combination fastness can be ensured. The socket body 6 is formed by splicing a plurality of splicing blocks 7, the splicing blocks are combined in a splicing mode, and a safe deformation space can be formed in the later assembling process. The external diameter of socket main part 6 is less than the aperture of installation cavity, be equipped with on socket main part's the outer arc surface and distribute a plurality of annular grooves 8 along the center pin direction, the guarantee has safe deformation space in the later stage inserts the combination in-process. The elastic fixing ring 9 is arranged in the annular groove 8, and when the combination is carried out, the matching pressure is applied to the structural force in the insertion process, so that the splicing blocks 7 are driven to move outwards, and the clamping position structure is prevented from being damaged in the assembling process. The elastic fixing ring 9 can be made of materials with elastic action such as rubber, and the elastic deformation function can be ensured in the using process. The central position department of the concatenation of concatenation piece 7 forms the jack for with the cooperation of male circumferential seam connector. Evenly distributed about being equipped with in the jack and a plurality of conical matching hole sections 10 of end to end, can carry out the block with a plurality of toper cooperation post sections of circumferential weld connector after the assembly and be connected, have the locking complex connection effect after the assembly. The right side position of toper mating hole section 10 is equipped with direction conical surface 11 promptly to the entry end of jack, ensures that the inner structure inserts the smoothness nature better when making up, and assembly operation is more convenient. The left side position of toper cooperation hole section 10 is provided with keeps away position hole section 12, ensures that central point puts bigger space, can be in the same place with the tip guide structure cooperation of circumferential weld connector. The circumferential seam connector comprises an embedded part 21, and the embedded part is fused with the inside of the pipe piece when in use, so that the embedded part and the pipe piece are integrated. The right side of pre-buried portion 21 can set up a connecting screw bolt when specifically using, or set up a screw hole in right side position, and a double-screw bolt is connected through the screw hole and is in the same place pre-buried portion 21 and the direct section of jurisdiction on double-screw bolt part and right side fuses, can ensure and the section of jurisdiction between the bulk joint strength more firm. The left side position of end cover 2 can set up a connecting stud when specifically using, or set up a screw hole in right side position, and a stud is connected through the screw hole and is in the same place its whole section of jurisdiction with the left side position fuses, can ensure and the section of jurisdiction between the bulk joint strength more firm. The left side central point of pre-buried portion 21 puts and is equipped with integrated into one piece's cylindrical spliced pole 22, spliced pole 22 is equipped with about evenly distributed a plurality of conical cooperation column sections, with the combination of circumferential weld connection socket subassembly back, has the locking combination effect of cooperation. The left side of spliced pole 22 is equipped with conical guide post section, has the cooperation guide effect when guaranteeing whole combination, and efficiency when installing is higher. The conical matching hole section 10 and the conical matching column section 23 are matched together, the conical matching hole section 10 and the conical matching column section 23 are identical in conical direction, smoothness during matching is guaranteed, and after the conical matching hole section and the conical matching column section are integrally installed, a right side face structure of a matching position can have a reliable anti-loosening matching effect. The section size of the conical matching hole section 10 is larger than or equal to that of the conical matching column section 23, so that the anti-loosening performance of the conical matching hole section can be guaranteed. The distance between the outer cylindrical surface of the socket main body 6 and the inner cylindrical surface of the mounting cavity is greater than or equal to the distance between the outer side position of the conical matching column section 23 and the outer cylindrical surface of the connecting column 22, so that when the socket main body is inserted and combined, enough deformation space is formed inside the socket main body, and if the distance at the position is too small, certain damage can be caused to a clamping structure in the assembling process. Have reliable block locking effect after carrying out whole combination, annular elastic fixation circle 9 set up and has ensured to have certain deformation space carrying on the direct bayonet combination in-process block position of circumferential weld connector to have the automatic re-setting effect after the assembly combination, can not cause the damage to it, ensured to have reliable block locking effect after the whole assembly.

The invention adopts a brand new structural design, the socket and the plug are integrally matched and connected in a way of being respectively arranged on a duct piece structure needing to be combined together when in use, the conical matching column section structure is arranged on the plug structure and is combined with a corresponding clamping structure arranged on the socket structure when in combination, the socket position is matched and connected by adopting an independent cylindrical structure, the cylindrical structure is combined by adopting a splicing block and an elastic fixing ring, when the integral insertion combination is carried out, a certain deformation space can be ensured at the clamping position in the integral insertion combination process, the clamping structure can not be damaged in the insertion process, the reliable structural strength can be ensured after the integral insertion combination, the self-locking structure is formed after the internal combination structure is assembled, the reliable anti-loosening combination effect can be ensured after the matched and connected, the convenience of the duct piece during the circular seam combination is ensured to be stronger when in use, the fluency during the combination operation is better, the connection precision is higher, the combination tightness is also more reliable, the higher combination strength is ensured in the later use process, the waterproof assembly capability can be improved, and the use cost of the tunnel can be effectively reduced.

The effects of the present invention will be described in detail below with reference to specific examples.

Example one

Fuse respectively in needs complex section of jurisdiction structure with circumferential weld connector and circumferential weld connection socket subassembly, the rapid Assembly when having ensured the combination through inserting of circumferential weld connector and circumferential weld connection socket subassembly, circumferential weld connection socket subassembly inner structure sets up, soft built-up connection has been formed in the in-process of inserting, it can not produce the damage to the block structure to have ensured the combination in-process, the initial strength of each subassembly after the assembly is accomplished has been ensured, cost during the whole combination can descend more than 35% for traditional mode. The combined strength is better when in connection, and the pulling strength can be improved by more than 20 percent when in later use. The overall service life of the integral combined connection can be prolonged by 8-10 years compared with the traditional mode.

Example two

When carrying out two section of jurisdiction structures and assembling, will set up a set of circumferential weld connector and circumferential weld connection socket subassembly on every section of jurisdiction is structural earlier, when carrying out built-up connection, the crisscross built-up connection that can realize circumferential weld connector and circumferential weld connection socket subassembly in section of jurisdiction cooperation position, the joint strength and the combination compactness that can ensure whole combination obtain inseparabler laminating, holistic combined strength is higher, holistic cooperation efficiency can effectively be promoted, carry out bolt-up's operation for traditional manual work, efficiency can promote more than 80%, waterproof prevention of seepage performance when using has obtained safer and reliable's guarantee, can increase the time more than 8 years on the basis of current waterproof prevention of seepage year.

The invention designs a brand new annular combined type shield tunnel segment circular seam connecting device, wherein a matching hole is matched and connected by adopting an independent socket main body, the socket main body adopts a splicing block and is combined with an elastic fixing ring, when the integral insertion combination is carried out, a certain deformation space can be ensured at a clamping position in the integral insertion combination process, the clamping structure cannot be damaged in the insertion process, the reliable structural strength can be ensured after the integral insertion combination, a self-locking structure is formed after the internal combination structure is assembled, the reliable anti-loosening combination effect can be ensured after the matching connection, and the convenience of the segment in the circular seam combination is ensured to be stronger when the annular combined type shield tunnel segment is used.

The invention can avoid the damage to the connecting piece structure in the assembling process of the duct piece, ensure the anti-loose combination effect of the matching position, reduce assembling and dislocation, is favorable for realizing the localization of the novel joint of the circular seam, and further promotes the realization of the automatic assembling of the duct piece.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The utility model provides an annular combination formula shield tunnel section of jurisdiction circumferential weld connecting device which characterized in that: including connection socket subassembly and connector, the connector is including being used for the pre-buried portion of pre-buried in first pipe, be equipped with in the pre-buried portion and be used for the spliced pole of being connected with the cooperation of connection socket subassembly, the spliced pole is equipped with toper cooperation column section, connection socket subassembly includes socket main body and is used for the pre-buried socket shell in the second pipe, socket shell is equipped with the installation cavity that is used for installing socket main body and is used for supplying the spliced pole of connector to insert the via hole of installation cavity, socket main body is spacing in socket shell's installation cavity, be equipped with the interval between socket main body outer wall and the socket shell inner wall, socket main body is equipped with the spliced pole male jack that is used for supplying the connector, the jack has the toper cooperation hole section that is used for corresponding with the toper cooperation column section of spliced pole, socket main body is formed by the concatenation of a plurality of splice blocks, socket main body's outer wall cover has the elasticity retainer plate, the one end of via hole and socket main body's jack intercommunication, the other end of via hole runs through socket shell.

2. The annular combined type shield tunnel segment circular seam connecting device of claim 1, characterized in that: the axial lines of the plurality of splicing block ring socket main bodies are distributed; the connecting column is provided with at least one section of conical matching column section, the jack of the socket main body is provided with at least one section of conical matching hole section, the aperture of each conical matching hole section of the socket main body is gradually reduced along the inserting direction of the connecting column of the connector, and the outer diameter of each conical matching column section of the connecting column of the connector is gradually reduced along the inserting direction; when the conical matching column section of the connecting column is matched in the conical matching hole section of the socket main body, the end surface of at least one section of the conical matching column section of the connecting column is contacted with the backstop surface in the jack of the socket main body.

3. The annular combined type shield tunnel segment annular seam connecting device of claim 2, wherein: a plurality of sections of conical matching column sections are arranged on the connecting column and are sequentially connected; the jack of socket main part has multistage toper cooperation hole section, and multistage toper cooperation hole section links to each other in proper order.

4. The annular combined type shield tunnel segment annular seam connecting device of claim 2 or 3, wherein: the connecting column is provided with a cylindrical section between the conical matching column section and the embedded part, and the diameter of the cylindrical section is smaller than the maximum diameter of the conical matching column section.

5. The annular combined type shield tunnel segment annular seam connecting device of claim 2 or 3, wherein: the end of the connecting column is provided with a guide column section; the one end that socket subject's jack is close to the via hole is equipped with the direction conical surface, the other end that socket subject's jack kept away from the via hole is equipped with keeps away the position hole section, toper cooperation hole section is located between the direction conical surface and the hole section of keeping away.

6. The annular combined type shield tunnel segment annular seam connecting device of claim 1, wherein: the outer wall of the socket body is provided with a groove which is arranged around the socket body, and the elastic fixing ring is positioned in the groove.

7. The annular combined type shield tunnel segment annular seam connecting device of claim 1 or 6, wherein: the elastic fixing ring is positioned between the outer wall of the socket main body and the inner wall of the socket shell and is respectively contacted with the outer wall of the socket main body and the inner wall of the socket shell.

8. The annular combined type shield tunnel segment annular seam connecting device of claim 1, wherein: the socket shell comprises an end cover and a shell, the shell is provided with an installation cavity for installing a socket body, one end of the installation cavity penetrates through one end of the shell, the other end of the shell, which is located in the installation cavity, is provided with a via hole, one end of the via hole is communicated with the installation cavity, the other end of the via hole penetrates through the other end of the shell, the aperture of the installation cavity is larger than that of the via hole, the end cover and the shell are kept away from one end of the via hole for fixed connection, and the socket body is axially limited in the installation cavity of the shell.

9. The annular combined type shield tunnel segment circular seam connecting device of claim 8, characterized in that: the end cover is fixedly connected with the shell through threads; the end cover is provided with a fastening connecting column, the fastening connecting column extends into the mounting cavity of the shell, the end cover is positioned with the spigot of the shell, the outer wall of the fastening connecting column is provided with threads, and the mounting cavity of the shell is provided with internal threads which are matched with the threads of the fastening connecting column of the end cover.

10. The annular combined type shield tunnel segment annular seam connecting device of claim 1 or 8, wherein: the inlet end of the through hole of the socket shell is provided with a guide conical surface.

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