Segmental beam prefabricated assembly pipeline connector and installation method

Abstract

The present invention provides a segmental beam prefabricated assembly pipeline connector and an installation method, comprising a positioning sleeve, a matching sleeve, and a sealing connector. The present invention adopts a single-sided groove compression seal, and positioning holes are opened in the positioning sleeve and the matching sleeve, so as to achieve the continuity and practicality of the segmental beam prefabricated assembly pipeline sealing. The positioning hole improves the accuracy of pipeline assembly, which not only improves the pipeline anti-corrosion performance and provides convenience for construction, but also forms a closed space in the pipeline, which provides technical conditions for intelligent detection of anchoring units in the pipeline, and provides guarantee for the intelligentization of the segmental prefabricated assembly beam.

Description

Technical Field

[0001] The invention belongs to the field of prestressed concrete adhesively-jointed assembled beams, and in particular relates to a segmental beam prefabricated assembled pipe connector and an installation method. Background Art

[0002] The development of segmental beam prefabrication and assembly technology has gradually formed the short-line method and adhesive joints as the mainstream direction. When the short-line method is used, the number of segmental beams will increase, and the number of joints will increase accordingly. The corrosion problem of the prestressed anchor unit assembly pipeline will also become prominent. Therefore, solving the anti-corrosion problem of the assembly pipeline has a great positive role in improving the durability and safety of the segmental beam.

[0003] The most widely used method now is to paste a rubber ring or a closed-cell polyethylene foam gasket on each channel of the joint surface between the segment beams. This method affects the fit of the segment beams during assembly, and the prestressed pipes of the two beams are not sealed continuously, which is susceptible to corrosion by free chloride ions. For example, the prestressed channel connector of the segmented assembled beam disclosed in Chinese patent CN205893925U includes a matching segment sleeve of the concrete segment prefabricated beam, a cast-in-place segment sleeve, a one-way plug, a two-way plug, an inner clamp and a sealing ring. The two end faces of the connector joint are grooved respectively, and the sealing ring is pressed into the two grooves to achieve the continuity of the prestressed pipe seal.

[0004] However, the above structure still has some defects. A sealing ring groove for placing the sealing ring is circumferentially opened on the outer wall of the smaller diameter end of the cast-in-place section casing. One end face of the sealing ring is provided with a groove matching the protrusion in the sealing ring groove of the cast-in-place section casing. The sealing ring is installed in the sealing groove in a sealing manner. Because there are multiple pipelines in each section of the beam, during assembly construction, due to the accumulation of beam manufacturing errors and beam installation errors, the sealing grooves may not be aligned, increasing the difficulty of construction. The leveling margin between the beams for aligning the two grooves will also be reduced, and there may even be a risk of sealing failure. In addition, it is not easy to find out whether the grooves are aligned during the assembly process.

[0005] Therefore, solving the continuity of prestressed pipe sealing and the practicality of pipe connectors is a necessary measure to improve the anti-corrosion performance of segmental beam prefabricated assembly pipelines and the technical level of segmental beam assembly. Summary of the invention

[0006] The present invention provides a segmental beam prefabricated assembly pipeline connector and installation method, the sealing connector is flexibly connected to the outer circle of the positioning sleeve and the matching sleeve respectively, and the end faces of the positioning sleeve and the matching sleeve are compressed and sealed by a single-sided groove, and the positioning sleeve and the matching sleeve are provided with positioning holes, so as to achieve the continuity and practicality of the segmental beam prefabricated assembly pipeline sealing, and improve the accuracy of pipeline assembly through the positioning holes. Not only does it improve the pipeline anti-corrosion performance and provide convenience for construction, but also a closed space is formed in the pipeline, which provides technical conditions for the intelligent detection of the anchor unit in the pipeline and provides guarantee for the intelligentization of the segmental prefabricated assembly beam.

[0007] The technical solution of the present invention is as follows:

[0008] A segment beam prefabricated assembly pipeline connector, comprising a positioning sleeve, a matching sleeve and a sealing connector, wherein the sealing connector is arranged in a cavity formed by the positioning sleeve and the matching sleeve being butted together, the positioning sleeve and the matching sleeve are matched and connected to each other on annular peripheral end faces, the matching sleeve and the positioning sleeve are positioned by pin holes arranged on their annular peripheral end faces, the outer sides of the positioning sleeve and the matching sleeve are both connected to pipelines, the positioning sleeve is provided with a threaded hole on the end face connected to the matching sleeve, and the sealing connector comprises a threaded hole connected to the matching sleeve. The sealing cone that matches the positioning sleeve and the sealing cylinder that matches the matching sleeve, the outer circumference of the sealing cone is provided with a first outer circular sealing ring that is sealed and connected to the inner circumference of the positioning sleeve, the outer circumference of the sealing cylinder is provided with a second outer circular sealing ring that is sealed and connected to the inner circumference of the matching sleeve, the end face of the sealing cone is provided with a first end face sealing ring that is sealed and connected to the internal boss end face of the positioning sleeve, and the end face of the sealing cylinder is provided with a second end face sealing ring that is sealed and connected to the internal boss end face of the matching sleeve.

[0009] The sealing connector used in the present invention is flexibly connected to the outer circles of the positioning sleeve and the matching sleeve respectively, and has a certain flexible error correction performance, thereby reducing the influence caused by errors caused by beam manufacturing and beam installation.

[0010] The connector of the present invention has positioning holes in the positioning sleeve and the matching sleeve, so as to achieve the continuity and practicality of the sealing of the prefabricated assembly pipeline of the segmental beam, and improve the accuracy of pipeline assembly through the positioning holes. It not only improves the anti-corrosion performance of the pipeline and provides convenience for construction, but also forms a closed space in the pipeline, provides technical conditions for the intelligent detection of the anchoring unit in the pipeline, and provides guarantee for the intelligentization of the prefabricated assembly beam of the segment.

[0011] The material of the segment beam joints is generally epoxy resin glue. During the splicing process, the epoxy resin glue needs to be prevented from entering the pipeline. The present invention adopts multi-layer sealing. The adjacent surfaces of the connector sealing connector, the positioning sleeve, and the matching sleeve all have gaps. During assembly, the epoxy resin glue will squeeze into the gap to fill it, but the outer circular sealing ring will prevent the epoxy resin glue from entering the pipeline, thereby turning harm into benefit. After the epoxy resin glue is squeezed into the gap, it plays a role of filling the gap, further increasing the sealing of the pipeline. The more gaps filled with epoxy resin, the better the sealing.

[0012] Preferably, the outer circumference of the sealing cone and the sealing cylinder is respectively provided with a first outer circular groove for accommodating the first outer circular sealing ring and a second outer circular groove for accommodating the second outer circular sealing ring; the end faces of the sealing cone and the sealing cylinder are respectively provided with a first end face groove for accommodating the first end face sealing ring and a second end face groove for accommodating the second end face sealing ring; the inner hole of the sealing connector is provided with a disassembly groove for assisting in disassembly of the sealing connector, and no sealing groove structure is provided on the positioning sleeve and the mating sleeve. The present invention only provides an installation groove for the seal on the sealing connector, which has a simple structure and realizes the use of a single-sided groove to compress the sealing ring between the end faces of the sealing connector and the positioning sleeve and the mating sleeve. Compared with the method of providing sealing grooves on both mating surfaces to compress the sealing ring by groove-to-groove, the construction difficulty is greatly reduced.

[0013] Preferably, the first end face sealing ring and the second end face sealing ring are one of U-shaped sealing ring, X-shaped sealing ring, V-shaped sealing ring, Y-shaped sealing ring, H-shaped sealing ring and M-shaped sealing ring, and the material is rubber, silicone or polymer foam material. The sealing compression of the above structure and material is large, which is convenient for improving the self-correction performance; the first outer circle sealing ring and the second outer circle sealing ring are one of O-type rubber or silicone pipe sealing rings, and the minimum inner diameters of the positioning sleeve, the sealing connector and the matching sleeve are the same, and the materials of the positioning sleeve, the sealing connector and the matching sleeve are polyethylene or polypropylene or materials with similar properties. The above structure has good sealing effect and low cost.

[0014] Preferably, the positioning sleeve is provided with a first positioning boss for positioning the pipeline on the inner side, and the matching sleeve is provided with a second positioning boss for positioning the pipeline. The first positioning boss and the second positioning boss are used for limiting the position when installing the pipeline, which facilitates the positioning and installation of the pipeline and improves efficiency.

[0015] Preferably, the matching portion of the matching sleeve and the outer circumference of the sealing connector is set to a cone angle of 0-5°, the matching portion of the positioning sleeve and the outer circumference of the pipe is set to a cone angle of 0-5°, and the matching portion of the positioning sleeve and the outer circumference of the pipe is set to a cone angle of 0-5°. Using a mounting matching structure with a certain taper, the installation is more secure and has good stability.

[0016] Preferably, there are gaps between the two end faces of the sealing connector and the end faces adjacent to the positioning sleeve and the matching sleeve, and the gap between the end face where the sealing cone transitions to the sealing cylinder and the end face adjacent to the matching sleeve is larger than the sum of the compression gaps of the first end face sealing ring and the second end face sealing ring. This ensures that the first end face sealing ring and the second end face sealing ring have enough compression space to ensure good sealing of the pipeline connection.

[0017] Preferably, the positioning sleeve and the matching sleeve are clamped to the pipe by a pipe clamp or a heat shrink sleeve, which has a simple structure, convenient installation and low cost.

[0018] In addition, the present invention also provides a method for installing a segment beam prefabricated assembly pipe connector, which is characterized by comprising the following steps:

[0019] Step 1: First, install at least one pipe sealing ring at one end where the pipe is connected to the positioning sleeve, insert it to the end face position of the boss in the positioning sleeve, and use at least one pipe hoop to clamp the positioning sleeve, the pipe sealing ring and the pipe. The position of the pipe hoop is at the axial position corresponding to the pipe sealing ring, and ensure that the pipe hoop has a horizontal overlap on the pipe sealing ring;

[0020] Step 2: Place the template on the right side of the positioning sleeve, pass the screws through the template and screw them into the threaded holes on the positioning sleeve, position and fix the positioning sleeve and template, and then fix the pipe on the steel cage of the segment beam; pour concrete;

[0021] Step 3: After the curing work of the prefabricated segmental beam is completed, the screws and formwork are removed;

[0022] Step 4: Use the end face of the prefabricated segment as the end mold of the newly cast segment, first install at least one pipe sealing ring on the end where the pipe is connected to the matching sleeve, insert it to the end face position of the boss in the matching sleeve, and use at least one pipe hoop to tightly clamp the matching sleeve, the pipe sealing ring and the pipe, and the position of the pipe hoop is at the position of the pipe sealing ring, ensuring that the pipe hoop has a horizontal overlap on the pipe sealing ring;

[0023] Step 5: Install the first outer cylindrical sealing ring, the second outer cylindrical sealing ring, the first end face sealing ring and the second end face sealing ring on the sealing connector, insert the sealing cylinder of the sealing connector into the end face position of the boss in the matching sleeve, and then insert the cylindrical pin into the first pin hole on the positioning sleeve, using the sealing cone of the sealing connector as a rough guide and the cylindrical pin as a fine guide to insert the cylindrical pin on the installation positioning sleeve into the previously assembled sealing connector, pipe sealing ring, pipe clamp, pipe and matching sleeve as a whole into the second pin hole on the matching sleeve, thereby completing the positioning of the matching sleeve;

[0024] Step 6: Fix the pipe on the steel cage of the newly cast segmental beam and pour the concrete of the newly cast segmental beam; after the curing work of the newly cast segmental beam is completed, remove the mold and separate the two segments, and remove the sealing joint and cylindrical pin;

[0025] Step 7: After the segment beam is transported to the construction site, the first outer cylindrical sealing ring, the second outer cylindrical sealing ring, the first end face sealing ring and the second end face sealing ring are installed on the sealing connector, and the sealing cylinder of the sealing connector is inserted into the end face position of the boss in the matching sleeve to ensure that the second end face sealing ring is compressed and deformed;

[0026] Step 8: Apply epoxy resin glue on the concrete surface of the segmental beam assembly end, use the sealing cone pipe assembly guide of the sealing connector to assemble the two segmental beams through external force, and at the same time, the sealing connector moves relative to the positioning sleeve and the matching sleeve to compress and deform the first end face sealing ring to complete the pipe sealing.

[0027] The beneficial effects of the present invention are:

[0028] The sealing connector used in the present invention is flexibly connected to the outer circles of the positioning sleeve and the matching sleeve respectively, and has a certain flexible error correction performance, thereby reducing the influence caused by errors caused by beam manufacturing and beam installation.

[0029] The connector of the present invention has positioning holes in the positioning sleeve and the matching sleeve, so as to achieve the continuity and practicality of the sealing of the prefabricated assembly pipeline of the segmental beam, and improve the accuracy of pipeline assembly through the positioning holes. It not only improves the anti-corrosion performance of the pipeline and provides convenience for construction, but also forms a closed space in the pipeline, provides technical conditions for the intelligent detection of the anchoring unit in the pipeline, and provides guarantee for the intelligentization of the prefabricated assembly beam of the segment.

[0030] The present invention adopts multi-layer sealing. The adjacent surfaces of the connector sealing connector, the positioning sleeve and the matching sleeve all have gaps. During assembly, the epoxy resin glue will be squeezed into the gaps to fill them. However, the outer circular sealing ring blocks the epoxy resin glue from entering the pipeline, thereby turning harm into benefit. After the epoxy resin glue is squeezed into the gaps, it plays a role of filling the gaps, further increasing the sealing of the pipeline. The more gaps are filled with epoxy resin, the better the sealing.

[0031] The present invention only provides an installation groove for the seal on the sealing connector, which has a simple structure and realizes that the sealing connector and the end faces of the positioning sleeve and the matching sleeve use a single-sided groove to compress the sealing ring. Compared with the method of compressing the sealing ring groove-to-groove with sealing grooves on both matching surfaces, the construction difficulty is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The present invention is a schematic diagram of the cross-sectional structure of a segmental beam prefabricated assembly pipeline connector.

[0033] Figure 2 and Figure 3 is a schematic diagram of the structure of the positioning sleeve of the present invention, wherein Figure 3 yes Figure 2 AA direction cross-sectional view.

[0034] Figure 4 and Figure 5 is a schematic diagram of the structure of the matching sleeve of the present invention, wherein Figure 5 yes Figure 4 AA direction cross-sectional view.

[0035] Figure 6 It is a schematic cross-sectional structural diagram of the sealing connector described in the present invention.

[0036] Figure 7 yes Figure 1 Enlarged view of point B in the middle.

[0037] Figure 8 It is a structural schematic diagram of the present invention in which the pipeline and the template are installed in the positioning sleeve.

[0038] Fig. 9 It is a schematic diagram of the installation structure of embodiment 4 of the present invention.

[0039] In the figure: 1-positioning sleeve, 101-threaded hole, 102-first positioning boss, 103-first pin hole, 2-matching sleeve, 201-second positioning boss, 202-second pin hole, 3-sealing connector, 301-sealing cone, 302-sealing cylinder, 303-first outer circular groove, 304-second outer circular groove, 305-first end face groove, 306-second end face groove, 307-disassembly groove, 4-pipe sealing ring, 5-pipe, 6-first outer circular sealing ring, 7-second outer circular sealing ring, 8-first end face sealing ring, 9-second end face sealing ring, 10-pipe clamp, 11-heat shrink sleeve, 12-template. DETAILED DESCRIPTION

[0040] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with preferred embodiments and accompanying drawings. Similar components in the accompanying drawings are represented by the same reference numerals. It should be understood by those skilled in the art that the content specifically described below is illustrative rather than restrictive, and should not be used to limit the scope of protection of the present invention.

[0041] Embodiment 1:

[0042] like Figure 1~Figure 5As shown, a segment beam prefabricated assembly pipeline connector comprises a positioning sleeve 1, a matching sleeve 2 and a sealing connector 3, wherein the sealing connector 3 is arranged in a cavity formed by the positioning sleeve 1 and the matching sleeve 2 being butt-jointed, the positioning sleeve 1 and the matching sleeve 2 are matched and connected to each other on the circumferential end faces, the matching sleeve 2 and the positioning sleeve 1 are positioned by pin holes arranged on the circumferential end faces thereof, the outer sides of the positioning sleeve 1 and the matching sleeve 2 are both connected to a pipeline 5, the positioning sleeve 1 is provided with a threaded hole 101 on the end face connected to the matching sleeve 2,

[0043] like Figure 6 As shown, the sealing connector 3 includes a sealing cone 301 that cooperates with the positioning sleeve 1 and a sealing cylinder 302 that cooperates with the matching sleeve 2. Figure 7 As shown, the outer circumference of the sealing cone 301 is provided with a first outer circular sealing ring 6 and is sealedly connected with the inner circumference of the positioning sleeve 1, the outer circumference of the sealing cylinder 302 is provided with a second outer circular sealing ring 7 and is sealedly connected with the inner circumference of the matching sleeve 2, the end face of the sealing cone 301 is provided with a first end face sealing ring 8 and is sealedly connected with the internal boss end face of the positioning sleeve 1, and the end face of the sealing cylinder 302 is provided with a second end face sealing ring 9 and is sealedly connected with the internal boss end face of the matching sleeve 2.

[0044] In the present embodiment, when prefabricating the matching beam section, screws are passed through the template 12 to connect with the positioning sleeve 1, and the positioning sleeve 1 is fixed and positioned on the template 12. The other end of the corrugated tube with the pipe sealing ring 4 is inserted, and the outer circle is clamped with the pipe clamp 10 or tightened with the heat shrink sleeve 11. After the matching beam section is made, the template 12 of the matching beam section is removed to prepare for the production of the newly cast beam section. Before the production of the newly cast beam section, the outer circle sealing ring is inserted into the outer cone and outer cylindrical grooves at both ends of the sealing connector 3 near the joint of the prefabricated segment beam, the sealing connector 3 is inserted into the matching sleeve 2, and the other end of the matching sleeve is inserted with the corrugated tube with the pipe sealing ring 4, and the outer circle is clamped with the pipe clamp 10 or tightened with the heat shrink sleeve 11. Insert a cylindrical pin into the pin hole of the positioning sleeve 1, guide the matching sleeve 2 equipped with the sealing connector 3 and the bellows through the outer cone of the sealing connector 3, insert the cylindrical pin on the positioning sleeve 1 into the pin hole of the matching sleeve 2, complete the positioning installation, then fix the pipe 5 of the new pouring section on the steel cage of the new pouring beam section, and pour the concrete of the new pouring beam section. After the new pouring beam section completes the maintenance period, separate the two sections of the beam, remove the cylindrical pin and the sealing connector 3, and finally complete the production of the new pouring beam section.

[0045] During construction and installation, it is necessary to install outer circle sealing rings and end face sealing rings on the outer cone and outer cylinder of the sealing connector 3 and the grooves on both end faces respectively, using the cone of the sealing connector 3 as a guide. When the segment beams are joined and assembled, the end face sealing rings 4 at both ends of the sealing connector 3 are compressed and deformed, and finally a continuous pipeline 5 seal is formed.

[0046] Embodiment 2:

[0047] like Figure 1~Figure 5 As shown, a segment beam prefabricated assembly pipeline connector includes a positioning sleeve 1, a matching sleeve 2 and a sealing connector 3, wherein the sealing connector 3 is arranged in a cavity formed by the positioning sleeve 1 and the matching sleeve 2 being butt-jointed, the positioning sleeve 1 and the matching sleeve 2 are matched and connected to each other on the circumferential end faces, the matching sleeve 2 and the positioning sleeve 1 are positioned by pin holes arranged on the circumferential end faces thereof, the outer sides of the positioning sleeve 1 and the matching sleeve 2 are both connected to a pipeline 5, the positioning sleeve 1 is provided with a threaded hole 101 on the end face connected to the matching sleeve 2, the sealing connector 3 includes a threaded hole 101 connected to the positioning sleeve 1, and the sealing connector 3 includes a threaded hole 101 connected to the positioning sleeve 1. The sealing cone 301 that matches the tube 1 and the sealing cylinder 302 that matches the matching sleeve 2, the outer circumference of the sealing cone 301 is provided with a first outer circular sealing ring 6 that is sealed and connected to the inner circumference of the positioning sleeve 1, the outer circumference of the sealing cylinder 302 is provided with a second outer circular sealing ring 7 that is sealed and connected to the inner circumference of the matching sleeve 2, the end face of the sealing cone 301 is provided with a first end face sealing ring 8 that is sealed and connected to the internal boss end face of the positioning sleeve 1, and the end face of the sealing cylinder 302 is provided with a second end face sealing ring 9 that is sealed and connected to the internal boss end face of the matching sleeve 2.

[0048] like Figure 6 and Figure 7As shown, in this embodiment, the outer circumference of the sealing cone 301 and the sealing cylinder 302 are respectively provided with a first outer circular groove 303 for accommodating the first outer circular sealing ring 6 and a second outer circular groove 304 for accommodating the second outer circular sealing ring 7, that is, the outer circumference of the sealing cone 301 is provided with a first outer circular groove 303 for accommodating the first outer circular sealing ring 6, and the outer circumference of the sealing cylinder 302 is provided with a second outer circular groove 304 for accommodating the second outer circular sealing ring 7; the end faces of the sealing cone 301 and the sealing cylinder 302 are respectively provided with a first end face groove 305 for accommodating the first end face sealing ring 8 and a second end face groove 306 for accommodating the second end face sealing ring 9; the inner hole of the sealing connector 3 is provided with a disassembly groove 307, and the disassembly groove 307 is used to assist in disassembly of the sealing connector 3, and no sealing groove structure is provided on the positioning sleeve 1 and the matching sleeve 2. The present invention only provides an installation groove for the seal on the sealing connector 3, which has a simple structure and realizes that the sealing connector 3 and the end faces of the positioning sleeve 1 and the matching sleeve 2 are compressed by a single-sided groove. Compared with the method of compressing the sealing ring by groove-to-groove with sealing grooves on both matching surfaces, the construction difficulty is greatly reduced.

[0049] like Figure 7 As shown, in this embodiment, the first end face sealing ring 8 and the second end face sealing ring 9 are both U-shaped sealing rings, made of rubber; the first outer circle sealing ring 6 and the second outer circle sealing ring 7 are O-shaped rubber, the minimum inner diameters of the positioning sleeve 1, the sealing connector 3 and the matching sleeve 2 are the same, and the materials of the positioning sleeve 1, the sealing connector 3 and the matching sleeve 2 are polyethylene or polypropylene or materials with similar properties. With the above structure, the sealing effect is good and the cost is low.

[0050] like Figure 7 As shown, in this embodiment, the inner side of the positioning sleeve 1 is provided with a first positioning boss 102 for positioning the pipe 5, and the matching sleeve 2 is provided with a second positioning boss 201 for positioning the pipe 5. The first positioning boss 102 and the second positioning boss 201 are used for limiting the position when installing the pipe 5, which facilitates the positioning and installation of the pipe 5 and improves efficiency.

[0051] like Figure 3 and Figure 5 As shown, in this embodiment, the outer circumferential mating parts of the mating sleeve 2 and the sealing connector 3 are set with a taper angle of 5°, as shown in FIG. Figure 5 The positioning sleeve 1 and the outer circumferential matching portion of the pipe 5 is set to a cone angle of 5 °, such as Figure 3 The positioning sleeve 1 and the outer circumferential matching portion of the pipe 5 is set to a cone angle of 5 °, such as Figure 5 The installation matching structure with a certain taper is adopted, which makes the installation more firm and has good stability.

[0052] like Figure 1 and Figure 7 As shown, in this embodiment, gaps are left between the two end faces of the sealing connector 3 and the end faces adjacent to the positioning sleeve 1 and the matching sleeve 2, and the gap between the end face where the sealing cone 301 transitions to the sealing cylinder 302 and the adjacent end face of the matching sleeve 2 is greater than the sum of the compression gaps of the first end face sealing ring 8 and the second end face sealing ring 9. It is ensured that the first end face sealing ring 8 and the second end face sealing ring 9 have sufficient compression space to ensure good sealing of the connection of the pipeline 5.

[0053] like Figure 1 As shown, in this embodiment, the positioning sleeve 1 and the matching sleeve 2 are clamped with the pipe 5 by a pipe clamp 10, and a pipe sealing ring 4 is provided in the gap between the pipe 5 and the positioning sleeve 1 and the matching sleeve 2, which has a simple structure, is easy to install and has low cost.

[0054] Embodiment 3:

[0055] This embodiment is the installation method of the above embodiment 2, including the following steps:

[0056] Step 1: If Figure 8 As shown, at least one pipe sealing ring 4 is first installed at one end of the pipe 5 connected to the positioning sleeve 1, inserted to the end surface position of the boss in the positioning sleeve 1, and at least one pipe hoop 10 is used to clamp the positioning sleeve 1, the pipe sealing ring 4 and the pipe 5. The position of the pipe hoop 10 is at the axial position corresponding to the pipe sealing ring 4, ensuring that the pipe hoop 10 has a transverse overlap on the pipe sealing ring 4;

[0057] Step 2, such as Figure 8 As shown, place the template 12 on the right side of the positioning sleeve 1, and screw through the template 12 and screw into the threaded hole 101 on the positioning sleeve 1 to position and fix the positioning sleeve 1 and the template 12, and then fix the pipe 5 on the steel cage of the segment beam; pour concrete;

[0058] Step 3: After the curing work of the prefabricated segmental beam is completed, the screws and the formwork 12 are removed;

[0059] Step 4: Use the end face of the prefabricated segment as the end mold of the newly cast segment, first install at least one pipe sealing ring 4 at the end where the pipe 5 is connected to the matching sleeve 2, insert it to the end face position of the boss in the matching sleeve 2, and use at least one pipe hoop 10 to clamp the matching sleeve 2, the pipe sealing ring 4 and the pipe 5, and the position of the pipe hoop 10 is at the position of the pipe sealing ring 4, ensuring that the pipe hoop 10 has a horizontal overlap on the pipe sealing ring 4;

[0060] Step 5: Install the first outer cylindrical sealing ring 6, the second outer cylindrical sealing ring 7, the first end face sealing ring 8 and the second end face sealing ring 9 on the sealing connector 3, insert the sealing cylinder 302 of the sealing connector 3 into the end face position of the boss in the matching sleeve 2, and then insert the cylindrical pin into the first pin hole 103 on the positioning sleeve 1, use the sealing cone 301 of the sealing connector 3 as a rough guide and the cylindrical pin as a fine guide to insert the cylindrical pin on the installation positioning sleeve 1 into the previously assembled sealing connector 3, pipe sealing ring 4, pipe clamp 10, pipe 5 and matching sleeve 2 as a whole into the second pin hole 202 on the matching sleeve 2, thereby completing the positioning of the matching sleeve 2;.

[0061] Step 6: The pipe 5 is fixedly installed on the steel cage of the newly cast segmental beam, and the concrete of the newly cast segmental beam is poured; after the curing work of the newly cast segmental beam is completed, the mold is removed and the two segments are separated, and the sealing connector 3 and the cylindrical pin are removed;

[0062] Step 7: After the segment beam is transported to the construction site, the first outer cylindrical sealing ring 6, the second outer cylindrical sealing ring 7, the first end face sealing ring 8 and the second end face sealing ring 9 are installed on the sealing connector 3, and the sealing cylinder 302 of the sealing connector 3 is inserted into the end face position of the inner boss of the matching sleeve 2 to ensure that the second end face sealing ring 9 is compressed and deformed;

[0063] Step 8: Apply epoxy resin glue on the concrete surface of the segment beam assembly end, use the sealing cone 301 of the sealing connector 3 as a guide for the assembly of the pipe 5, and while assembling the two segment beams by external force, the sealing connector 3 moves relative to the positioning sleeve 1 and the matching sleeve 2 to compress and deform the first end face sealing ring 8 to complete the sealing of the pipe 5.

[0064] Embodiment 4:

[0065] The difference between this embodiment and the above-mentioned embodiment 2 is that the outer circumferential matching part of the matching sleeve 2 and the sealing connector 3 is set to a cone angle of 2°, the outer circumferential matching part of the positioning sleeve 1 and the pipe 5 is set to a cone angle of 1°, and the outer circumferential matching part of the positioning sleeve 1 and the pipe 5 is set to a cone angle of 1°.

[0066] The first end face sealing ring 8 is an X-shaped sealing ring, the second end face sealing ring 9 is a V-shaped sealing ring, and the materials of the first end face sealing ring 8 and the second end face sealing ring 9 are one of silicone or polymer foam materials; the first outer circle sealing ring 6 and the second outer circle sealing ring 7 are silicone pipe sealing rings.

[0067] The number of the first outer cylindrical sealing rings 6 is two, and the number of the second outer cylindrical sealing ring 7, the first end face sealing ring 8 and the second end face sealing ring 9 are all one.

[0068] like Fig. 9As shown, the positioning sleeve 1 and the matching sleeve 2 are clamped with the pipe 5 by the heat shrink sleeve 11. The installation of the heat shrink sleeve further enhances the sealing performance between the positioning sleeve 1 and the pipe 5, and between the matching sleeve 2 and the pipe 5. The heat shrink sleeve plays a double sealing role. The installed heat shrink sleeve needs to wrap a wave peak greater than or equal to the pipe 5.

[0069] The above embodiments are only for the purpose of explaining the preferred solutions and installation methods of the present invention, and are not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, technicians in the field can still modify the technical solutions described in the above embodiments, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A segmental beam prefabricated assembly pipeline connector, comprising a positioning sleeve (1), a matching sleeve (2) and a sealing connector (3), wherein the sealing connector (3) is arranged in a cavity formed by the positioning sleeve (1) and the matching sleeve (2) being butt-jointed, the positioning sleeve (1) and the matching sleeve (2) being matched and connected at their circumferential end faces, the matching sleeve (2) and the positioning sleeve (1) being positioned by pin holes arranged at their circumferential end faces, the outer sides of the positioning sleeve (1) and the matching sleeve (2) being connected to a pipeline (5), characterized in that: The positioning sleeve (1) is provided with a threaded hole (101) on the end surface connected to the matching sleeve (2); the sealing connector (3) comprises a sealing cone (301) matched with the positioning sleeve (1) and a sealing cylinder (302) matched with the matching sleeve (2); the outer circumference of the sealing cone (301) is provided with a first outer circular sealing ring (6) and is sealedly connected to the inner circumference of the positioning sleeve (1); the outer circumference of the sealing cylinder (302) is provided with a second outer circular sealing ring (7) and is sealedly connected to the inner circumference of the matching sleeve (2); the sealing cone (301) A first end face sealing ring (8) is provided on the end face of the positioning sleeve (1) and is sealedly connected to the inner boss end face of the positioning sleeve (1); a second end face sealing ring (9) is provided on the end face of the sealing cylinder (302) and is sealedly connected to the inner boss end face of the matching sleeve (2); a first positioning boss (102) for positioning the pipe (5) is provided on the inner side of the positioning sleeve (1), and a second positioning boss (201) for positioning the pipe (5) is provided on the matching sleeve (2); the positioning sleeve (1) and the matching sleeve (2) are clamped to the pipe (5) by means of a pipe clamp (10) or a heat shrink sleeve (11).

2. The segment beam prefabricated assembly pipe connector according to claim 1, characterized in that: The outer circumferences of the sealing cone (301) and the sealing cylinder (302) are respectively provided with a first outer circular groove (303) for accommodating a first outer circular sealing ring (6) and a second outer circular groove (304) for accommodating the second outer circular sealing ring (7); the end faces of the sealing cone (301) and the sealing cylinder (302) are respectively provided with a first end face groove (305) for accommodating a first end face sealing ring (8) and a second end face groove (306) for accommodating the second end face sealing ring (9); and the inner hole of the sealing connector (3) is provided with a disassembly groove (307).

3. A segment beam prefabricated assembly pipe connector according to claim 1 or 2, characterized in that: The first end face sealing ring (8) and the second end face sealing ring (9) are one of a U-shaped sealing ring, an X-shaped sealing ring, a V-shaped sealing ring, a Y-shaped sealing ring, an H-shaped sealing ring and an M-shaped sealing ring, and the first outer circle sealing ring (6) and the second outer circle sealing ring (7) are one of an O-type rubber or silicone pipe sealing ring.

4. A segment beam prefabricated assembly pipe connector according to claim 1 or 2, characterized in that: The outer circumferential matching portion of the matching sleeve (2) and the sealing connector (3) is set to a cone angle of 0 to 5°, the outer circumferential matching portion of the positioning sleeve (1) and the pipe (5) is set to a cone angle of 0 to 5°, and the outer circumferential matching portion of the positioning sleeve (1) and the pipe (5) is set to a cone angle of 0 to 5°.

5. A segment beam prefabricated assembly pipe connector according to claim 1 or 2, characterized in that: Gaps are left between the two end faces of the sealing connector (3) and the end faces adjacent to the positioning sleeve (1) and the matching sleeve (2), respectively; the gap between the end face where the sealing cone (301) transitions to the sealing cylinder (302) and the end face adjacent to the matching sleeve (2) is greater than the sum of the compression gaps of the first end face sealing ring (8) and the second end face sealing ring (9).

6. A method for installing a prefabricated segment beam assembly pipe connector according to any one of claims 1 to 5, characterized in that The steps include: Step 1: First, install at least one pipe sealing ring (4) at one end of the pipe (5) connected to the positioning sleeve (1), insert it to the end surface position of the inner boss of the positioning sleeve (1), and use at least one pipe clamp (10) to clamp the positioning sleeve (1), the pipe sealing ring (4) and the pipe (5), the position of the pipe clamp (10) is at the axial position corresponding to the pipe sealing ring (4), and ensure that the pipe clamp (10) is horizontally overlapped with the pipe sealing ring (4); Step 2: Place the template (12) on the right side of the positioning sleeve (1), pass a screw through the template (12) and screw it into the threaded hole (101) on the positioning sleeve (1), position and fix the positioning sleeve (1) and the template (12), and then fix the pipe (5) on the steel cage of the segment beam; pour concrete; Step 3: After the curing work of the prefabricated segmental beam is completed, the screws and the formwork (12) are removed; Step 4: Using the end face of the prefabricated segment as the end mold of the newly cast segment, first install at least one pipe sealing ring (4) at the end where the pipe (5) is connected to the matching sleeve (2), insert it to the end face position of the inner boss of the matching sleeve (2), and use at least one pipe hoop (10) to clamp the matching sleeve (2), the pipe sealing ring (4) and the pipe (5), and the position of the pipe hoop (10) is at the position of the pipe sealing ring (4), ensuring that the pipe hoop (10) is horizontally overlapped with the pipe sealing ring (4); Step 5: Install the first outer cylindrical sealing ring (6), the second outer cylindrical sealing ring (7), the first end face sealing ring (8) and the second end face sealing ring (9) on the sealing connector (3), insert the sealing cylinder (302) of the sealing connector (3) into the end face position of the inner boss of the matching sleeve (2), and then insert the cylindrical pin into the first pin hole (103) on the positioning sleeve (1), and use the sealing cone (301) of the sealing connector (3) as a rough guide and the cylindrical pin as a fine guide to insert the cylindrical pin on the installation positioning sleeve (1) into the second pin hole (202) on the matching sleeve (2) of the previously assembled sealing connector (3), pipe sealing ring (4), pipe clamp (10), pipe (5) and matching sleeve (2), so as to complete the positioning of the matching sleeve (2); Step 6: Fix the pipe (5) on the steel cage of the newly cast segmental beam and pour concrete for the newly cast segmental beam; after the newly cast segmental beam is cured, remove the mold and separate the two segments, and remove the sealing connector (3) and the cylindrical pin; Step 7: After the segment beam is transported to the construction site, a first outer cylindrical sealing ring (6), a second outer cylindrical sealing ring (7), a first end face sealing ring (8) and a second end face sealing ring (9) are installed on the sealing connector (3), and the sealing cylinder (302) of the sealing connector (3) is inserted into the end face position of the inner boss of the matching sleeve (2) to ensure that the second end face sealing ring (9) is compressed and deformed; Step 8: Epoxy resin glue is applied to the concrete surface of the segment beam assembly end, and the sealing cone (301) of the sealing connector (3) is used as an assembly guide for the pipe (5). While the two segment beams are assembled by external force, the sealing connector (3) and the positioning sleeve (1) and the matching sleeve (2) respectively move relative to each other to compress and deform the first end face sealing ring (8), thereby completing the sealing of the pipe (5).

Images