CN111485907A - Pipe-jacking pipe joint is assembled to bullet card connected prefabrication - Google Patents
Pipe-jacking pipe joint is assembled to bullet card connected prefabrication Download PDFInfo
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- CN111485907A CN111485907A CN202010291249.8A CN202010291249A CN111485907A CN 111485907 A CN111485907 A CN 111485907A CN 202010291249 A CN202010291249 A CN 202010291249A CN 111485907 A CN111485907 A CN 111485907A
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- 238000009417 prefabrication Methods 0.000 title claims description 4
- 244000208734 Pisonia aculeata Species 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims description 31
- 238000010168 coupling process Methods 0.000 claims description 31
- 238000005859 coupling reaction Methods 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000004587 polysulfide sealant Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
- E21D11/386—Sealing means positioned between adjacent lining members inflatable sealing means
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses an elastic clamp connection type prefabricated assembled pipe jacking joint which comprises a pipe joint body, wherein the pipe joint body is divided into an upper pipe joint and a lower pipe joint in half, a plurality of upper joints are poured and embedded on the section of the upper pipe joint, a plurality of lower joints are poured and embedded on the section of the lower pipe joint, the number of the upper joints and the number of the lower joints are the same, the positions of the upper joints on the section of the upper pipe joint correspond to the positions of the lower joints on the section of the lower pipe joint one by one, each upper joint comprises an upper base, a sliding block, two elastic clamps, two pull-back plates and a plurality of elastic clamp springs, each lower joint comprises a lower base, and after the section of the upper pipe joint is attached and aligned with the section of the lower pipe joint, each upper joint is embedded into the corresponding lower joint to form an elastic clamp structure so as. The pipe joint body is divided into an upper pipe joint and a lower pipe joint in half, so that the pipe joint is convenient to transport and hoist, the upper pipe joint and the lower pipe joint are locked through the elastic clamping connection structure, assembly can be rapidly completed, the operation is simple, automatic construction is facilitated, and the requirements on continuity and waterproofness of a building structure are met.
Description
Technical Field
The invention relates to the technical field of trenchless prefabricated assembled underground construction engineering, in particular to an elastic clamp connection type prefabricated assembled jacking pipe joint.
Background
The pipe jacking technology is used as a trenchless technology, and has little influence on the surrounding environment and buildings during construction. At present, the technology of rectangular jacking pipes pushed into large-section, long-distance and complex stratums gradually becomes mainstream, and the technology is widely applied to projects such as underground pedestrian passageways, subway station entrances and exits, underground roadways, urban comprehensive pipe galleries and the like. Although the rectangular jacking pipe joint can realize standardized and industrialized production, the large-section rectangular jacking pipe joint has large section and quality, great difficulty is caused to the plane arrangement of a construction site and the transportation, hoisting and construction of the pipe joint, the abnormal construction time is possibly too much, the working efficiency is low, the phenomenon of delay of the construction period is caused, and the construction cost is increased.
The technical development of the prefabricated assembled rectangular jacking pipe is just started in China and still blank in the related research field. The segment joint structure of the assembled rectangular jacking pipe refers to a structure with the segment joints playing a connecting role, is used as an important component of the jacking pipe structure, is the weakest link of the whole structure, and influences the mechanical property and the deformation characteristic of the structure. If the bolt joint is adopted, the pipe joint structure is weakened, the installation is time-consuming and labor-consuming, and the joint strength of the hinged joint, the tenon joint and the wedge joint is very low.
Disclosure of Invention
The invention aims to provide an elastic clamping connection type prefabricated assembled jacking pipe joint aiming at the existing technical current situation, which is convenient to transport and hoist, can be assembled quickly, and meets the requirements of continuity and waterproofness of a building structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
a kind of bullet-catch connection type prefabrication assembles the pipe-jacking pipe coupling, including the pipe coupling body, the front end of the pipe coupling body is the socket end, the back end of the pipe coupling body is the socket end, the socket end of the pipe coupling body has several grouting holes that link up the pipe wall along the circumference evenly spaced, the pipe coupling body is divided into upper pipe coupling and lower pipe coupling half-and-half, pour and bury a plurality of upper joints on the section of upper pipe coupling, pour and bury a plurality of lower joints on the section of lower pipe coupling, the upper joint is the same with the lower joint quantity and the upper joint locates the position on the section of upper pipe coupling and the lower joint locates on the section of lower pipe coupling one-to-one, after the section of upper pipe coupling and section of lower pipe coupling are laminated and aligned, each upper joint imbeds its correspondent lower joint and forms the bullet-catch connection structure, in order to lock;
the upper joint comprises an upper base, a sliding block, two elastic calipers, two pull-back plates and a plurality of elastic clamp springs, wherein the upper base is internally provided with a mounting groove which vertically extends upwards from the lower end surface of the upper base, the shape and the size of the mounting groove are the same as those of the sliding block, the left end surface and the right end surface of the upper base are respectively provided with an elastic clamp window communicated with the mounting groove at the same height, the front end of the upper base exceeds the section of the upper pipe joint, the lower ends of the two elastic clamp calipers and the front side wall and the rear side wall of the mounting groove are hinged through a first pin shaft, the hinged part is positioned below the elastic clamp window, the lower ends of the two pull-back plates are respectively hinged with the middle part of one elastic clamp of the two pull-back plates through a second pin shaft, the upper ends of the two pull-back plates are hinged with the lower end of the sliding block through a third pin shaft, the plurality of elastic clamp springs are arranged between the, the front ends of the two elastic calipers respectively extend out of the two elastic caliper windows to exceed the left end face and the right end face of the upper base;
the lower joint comprises a lower base, an assembly groove vertically extending downwards from the upper end face of the lower base is formed in the lower base, the assembly groove is in an inverted T shape, the shape and the size of the upper end port of the assembly groove are the same as the part of the front end of the upper base, which exceeds the section of the upper pipe section, and the upper end face of the lower base is flush with the section of the lower pipe section.
Furthermore, the front end of the elastic caliper is provided with an inclined plane, the tension of the elastic caliper spring pushes the sliding block to enable the two elastic calipers to be opened and to limit the included angle of the two elastic calipers through the lower edge of the elastic caliper window, and the inclined plane is a horizontal plane.
Furthermore, the upper end surface of the upper base and the lower end surface of the lower base are respectively provided with a side hanging lug in an extending way towards the front end and the rear end and/or the left end and the right end, so that the upper base and the lower base are both of a T-shaped structure.
Furthermore, the side hangers are provided with positioning through holes, the number of the positioning through holes is the same as that of the positioning steel bars, and the positioning steel bars are inserted into the positioning through holes to limit the positions of the upper base in the upper joint and the lower base in the lower joint.
Furthermore, a plurality of hoisting holes are formed in the outer side surface of the upper pipe joint and the outer side surface or the inner side surface of the lower pipe joint.
Further, the elastic clamping spring is positioned through the positioning structure to keep the elastic clamping spring in a vertical state and not to transversely shift.
Furthermore, the positioning structure is a positioning bolt, and the positioning bolt is fixed in a bolt hole penetrating from the top surface of the upper base to the mounting groove.
Furthermore, the first pin shaft, the second pin shaft and the third pin shaft are all elastic pins.
Furthermore, a plurality of water stopping grooves are formed in the left section and the right section of the upper pipe joint and/or the lower pipe joint, and water-swelling strips are arranged in the water stopping grooves.
Furthermore, caulking grooves are formed in the inner side edges of the left and right cross sections of the upper pipe joint and the lower pipe joint, and the two-component polysulfide sealant is filled after the caulking grooves in the cross section of the upper pipe joint and the caulking grooves in the cross section of the lower pipe joint are spliced.
The invention has the beneficial effects that:
its advantage lies in, the tube coupling body is divided into half and is gone up tube coupling and lower tube coupling, is convenient for transport, hoist and mount, goes up the tube coupling and passes through bullet card connection structure locking with lower tube coupling, can accomplish fast and assemble, and easy operation does benefit to automatic construction, satisfies building structure continuity and waterproof nature requirement simultaneously.
Drawings
FIG. 1 is a perspective view of a pipe section body of the present invention;
FIG. 2 is a perspective view of the upper base of the present invention;
FIG. 3 is a cross-sectional view of the upper base of the present invention;
FIG. 4 is a schematic view of a connecting structure of a slider, two elastic calipers and two pullback plates according to the present invention;
FIG. 5 is a schematic view of the process of assembling the upper pipe joint and the lower pipe joint according to the present invention;
FIG. 6 is a schematic diagram of the assembled upper pipe joint and lower pipe joint of the present invention.
Description of the labeling: 1. go up the tube coupling, 2, lower tube coupling, 3, the slip casting hole, 4, the hole for hoist, 5, go up the base, 6, play card window, 7, positioning hole, 8, bolt hole, 9, the mounting groove, 10, the slider, 11, the third round pin axle, 12, the pull-back board, 13, the second round pin axle, 14, play calliper, 15, first round pin axle, 16, the lower base, 17, the assembly groove, 18, the positioning bar, 19, positioning bolt, 20, play card spring, 21, stagnant water recess, 22, the caulking recess.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1, an elastic clip connection type prefabricated assembled pipe jacking pipe joint comprises a pipe joint body, wherein the pipe joint body comprises various cross-sectional shapes such as a circle, a rectangle, a similar rectangle and the like, the pipe joint body shown in fig. 1 is a rectangular cross section, the front end face of the pipe joint body is a socket end, and the rear end face of the pipe joint body is a socket end. The socket end of tube coupling body is equipped with a plurality of injected holes 3 that link up the pipe wall along the even interval of circumference, carries out wall postgrouting through injected hole 3 to fill the hole, can also prevent section of jurisdiction and soil body and subside.
Referring to fig. 5-6, the pipe joint body is divided into two halves, i.e., an upper pipe joint 1 and a lower pipe joint 2, a plurality of upper joints are poured and embedded on the section of the upper pipe joint 1, a plurality of lower joints are poured and embedded on the section of the lower pipe joint 2, the number of the upper joints and the number of the lower joints are the same, the positions of the upper joints on the section of the upper pipe joint 1 correspond to the positions of the lower joints on the section of the lower pipe joint 2 one by one, and the number of the upper joints and the lower joints is determined according to the length of the pipe joint body.
After the section of the upper pipe joint 1 is attached and aligned with the section of the lower pipe joint 2, each upper joint is embedded into the corresponding lower joint to form a spring clip connection structure so as to lock the upper pipe joint 1 and the lower pipe joint 2. Go up 1 lateral surface of tube coupling and 3 lateral surfaces of lower tube coupling or medial surface and all be equipped with a plurality of hole for hoist 4, transport, hoist and mount in-process all through hole for hoist 4 and hoist mechanical connection. During actual design, for the rectangular pipe joint body, the hoisting hole 4 on the lower pipe joint 2 is reserved on the outer side, and for the circular pipe joint body, the hoisting hole 4 on the lower pipe joint 2 is reserved on the inner side.
A plurality of water stopping grooves 21 are formed in the left cross section and the right cross section of the upper pipe joint 1 and/or the lower pipe joint 2, and water-swelling strips are arranged in the water stopping grooves 21. The inner side edges of the left and right sections of the upper pipe joint 1 and the lower pipe joint 2 are respectively provided with a caulking groove 22, and the caulking grooves 22 on the section of the upper pipe joint 1 and the caulking grooves 22 on the section of the lower pipe joint 2 are spliced and then filled with the two-component polysulfide sealant. Through above-mentioned waterproof construction, guarantee to go up the back of tube coupling 1 and lower tube coupling 2 assembly, radially do not have the seepage.
Referring to fig. 2-6, the upper joint includes an upper base 5, a sliding block 10, two elastic calipers 14, two pull-back plates 12 and a plurality of elastic clamp springs 20, wherein the upper base 5 is provided with a mounting groove 9 vertically extending from the lower end surface thereof, the shape and size of the mounting groove 9 are the same as those of the sliding block 10, the upper base 5 is provided with an elastic clamp window 6 communicated with the mounting groove 9 at the same height position on the left and right end surfaces, the front end of the upper base 5 exceeds the section of the upper pipe joint 1, the lower ends of the two elastic calipers 14 and the front and rear side walls of the mounting groove 9 are hinged by a first pin 15 and the hinged position is located below the elastic clamp window 6, the lower ends of the two pull-back plates 12 are respectively hinged to the middle of the elastic calipers 14 by a second pin 13, the upper ends of the two pull-back plates 12 are hinged to the lower end of the sliding block 10 by a third pin 11, the plurality of elastic clamp springs 20 are, The lower end is pressed against the upper end surface of the slide block 10. The tension of the elastic clamp spring 20 pushes the slide block 10 to open the two elastic calipers 14 and limit the included angle of the two elastic calipers 14 through the lower edge of the elastic clamp window 9, so that the front ends of the two elastic calipers 14 respectively extend out of the two elastic clamp windows 9 to exceed the left end face and the right end face of the upper base 5.
The spring clip spring 20 is positioned by the positioning structure to keep the vertical state and not to shift laterally. The positioning structure is a positioning bolt 19, and the positioning bolt 19 is fixed in a bolt hole 8 penetrating from the top surface of the upper base 5 to the mounting groove 9. First round pin axle 15, second round pin axle 13 and third round pin axle 11 are the elastic pin, and the elastic pin does benefit to the assembly, the shearing resistance that can be better.
The lower joint comprises a lower base 16, an assembly groove 17 vertically extending downwards from the upper end face of the lower base 16 is formed in the lower base, the assembly groove 17 is in an inverted T shape, the shape and the size of the upper end port of the assembly groove are the same as the parts of the front end of the upper base 5, which exceed the section of the upper pipe joint 1, and the upper end face of the lower base 16 is flush with the section of the lower pipe joint 2.
The upper end surface of the upper base 5 and the lower end surface of the lower base 16 both extend towards the front end and the rear end and/or the left end and the right end to form side hangers, so that the upper base 5 and the lower base 16 are both of T-shaped structures, and the T-shaped structures can enhance the connection strength between the upper base 5 and the upper pipe joint 1 and between the lower base 16 and the lower pipe joint 2. The pipe joint further comprises a plurality of positioning steel bars 18, the side hangers are provided with positioning through holes 7 the number of which is the same as that of the positioning steel bars 18, and the positioning steel bars 18 penetrate into the positioning through holes 7 to limit the positions of the upper base 5 in the upper pipe joint 1 and the lower base 16 in the lower pipe joint 2.
Specifically, the assembling process of the upper pipe joint 1 and the lower pipe joint 2 is as follows:
when the upper joint is in an initial state, the tension of the elastic clamp spring 20 pushes the sliding block 10 to open the two elastic calipers 14 and limit the included angle of the two elastic calipers 14 through the lower edges of the elastic clamp windows 9, so that the front ends of the two elastic calipers 14 respectively extend out of the two elastic clamp windows 9 to exceed the left end face and the right end face of the upper base 5;
in the process that the upper joint is embedded into the corresponding lower joint, the groove wall of the assembling groove 17 extrudes the two elastic calipers 14 inwards to reduce the included angle of the two elastic calipers 14, the front ends of the two elastic calipers are respectively retracted from the two elastic clamping windows 6 to the position which does not exceed the left end surface and the right end surface of the upper base 5, the sliding block 10 moves upwards in the process, and the elastic clamping spring 20 is shortened;
after the upper joint is completely embedded into the corresponding lower joint, the tension of the elastic clamp spring 20 pushes the sliding block 10 to open the two elastic calipers 14 and limit the included angle of the two elastic calipers 14 through the lower edges of the elastic clamp windows 9, so that the front ends of the two elastic calipers 14 respectively extend out of the two elastic clamp windows 9 to exceed the left end face and the right end face of the upper base 5, at the moment, the front ends of the two elastic calipers 14 and the two sides of the inner port of the assembling groove 17 form limit positions, strong pull-out resistance is generated, and the upper joint cannot be removed from the lower joint.
After the assembly is completed, when tension pressure is generated between the upper joint and the lower joint, the tension pressure is transmitted to the first pin shaft 15 through the two elastic calipers 14, and then is transmitted to the upper base 5 from the first pin shaft 15, so that the internal structure formed by the sliding block 10, the two elastic calipers 14, the two pull-back plates 12 and the plurality of elastic caliper springs 20 is not influenced, and the structural strength requirement is met.
Preferably, the spring caliper 14 has a slope at the front end, and the slope is a horizontal plane after the tension of the spring clip spring 20 pushes the slider 10 to open the two spring calipers 14 and pass through the lower edge of the spring clip window 6 to define the included angle of the two spring calipers 14. Based on the design, after the upper joint is completely embedded into the corresponding lower joint, the front ends of the two elastic calipers 14 and the two sides of the inner port of the assembling groove 17 form limiting positions, and the two limited end faces are planes, so that the limiting reliability is higher.
It should be pointed out that the requirement of the elastic clamp connection structure on the assembly precision of the pipe ring is high, that is, the section of the upper pipe joint 1 and the section of the lower pipe joint 2 must be completely attached and aligned, and the overlarge size error will cause that the upper joint cannot be accurately embedded into the corresponding lower joint.
The pipe joint has the advantages that the pipe joint body is divided into the upper pipe joint 1 and the lower pipe joint 2 in half, so that the pipe joint is convenient to transport and hoist, the upper pipe joint 1 and the lower pipe joint 2 are locked through the elastic clamping connection structure, assembly can be completed quickly, the operation is simple, automatic construction is facilitated, and meanwhile, the requirements on continuity and waterproofness of a building structure are met.
It should be understood that the above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the invention, therefore, all equivalent changes in the principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a push pipe coupling is assembled in prefabrication of bullet card connected type, includes the tube coupling body, and the terminal surface is the socket end before the tube coupling body, and tube coupling body rear end face is the socket end, and the socket end of tube coupling body is equipped with a plurality of injected holes that link up the pipe wall along the even interval of circumference, its characterized in that: the pipe joint body is divided into an upper pipe joint and a lower pipe joint in half, a plurality of upper joints are poured and embedded on the section of the upper pipe joint, a plurality of lower joints are poured and embedded on the section of the lower pipe joint, the number of the upper joints is the same as that of the lower joints, the positions of the upper joints on the section of the upper pipe joint are in one-to-one correspondence with the positions of the lower joints on the section of the lower pipe joint, and after the sections of the upper pipe joint and the lower pipe joint are attached and aligned, each upper joint is embedded into the corresponding lower joint to form an elastic card connection structure so as to lock the upper pipe joint and;
the upper joint comprises an upper base, a sliding block, two elastic calipers, two pull-back plates and a plurality of elastic clamp springs, wherein the upper base is internally provided with a mounting groove which vertically extends upwards from the lower end surface of the upper base, the shape and the size of the mounting groove are the same as those of the sliding block, the left end surface and the right end surface of the upper base are respectively provided with an elastic clamp window communicated with the mounting groove at the same height, the front end of the upper base exceeds the section of the upper pipe joint, the lower ends of the two elastic clamp calipers and the front side wall and the rear side wall of the mounting groove are hinged through a first pin shaft, the hinged part is positioned below the elastic clamp window, the lower ends of the two pull-back plates are respectively hinged with the middle part of one elastic clamp of the two pull-back plates through a second pin shaft, the upper ends of the two pull-back plates are hinged with the lower end of the sliding block through a third pin shaft, the plurality of elastic clamp springs are arranged between the, the front ends of the two elastic calipers respectively extend out of the two elastic caliper windows to exceed the left end face and the right end face of the upper base;
the lower joint comprises a lower base, an assembly groove vertically extending downwards from the upper end face of the lower base is formed in the lower base, the assembly groove is in an inverted T shape, the shape and the size of the upper end port of the assembly groove are the same as the part of the front end of the upper base, which exceeds the section of the upper pipe section, and the upper end face of the lower base is flush with the section of the lower pipe section.
2. The prefabricated assembled jacking pipe joint of claim 1, wherein the pipe joint comprises: the elastic calipers are provided with inclined planes at the front ends, the tension of the elastic clamp springs pushes the sliding blocks to enable the two elastic clamp calipers to be opened and to limit the included angle of the two elastic clamp calipers through the lower edges of the elastic clamp windows, and the inclined planes are horizontal planes.
3. The prefabricated assembled jacking pipe joint of claim 1, wherein the pipe joint comprises: the upper end surface of the upper base and the lower end surface of the lower base extend to the front end and the rear end and/or the left end and the right end to form side hanging lugs, so that the upper base and the lower base are of T-shaped structures.
4. The prefabricated assembled jacking pipe joint of claim 3, wherein the elastic clamping connection type prefabricated assembled jacking pipe joint comprises the following components in percentage by weight: the side hangers are provided with positioning through holes, the number of the positioning through holes is the same as that of the positioning steel bars, and the positioning steel bars are inserted into the positioning through holes to limit the positions of the upper base in the upper joint and the lower base in the lower joint.
5. The prefabricated assembled jacking pipe joint of claim 1, wherein the pipe joint comprises: and a plurality of hoisting holes are formed in the outer side surface of the upper pipe joint and the outer side surface or the inner side surface of the lower pipe joint.
6. The prefabricated assembled jacking pipe joint of claim 1, wherein the pipe joint comprises: the elastic clamp spring is positioned through the positioning structure to keep the elastic clamp spring in a vertical state and does not shift transversely.
7. The prefabricated assembled jacking pipe joint of claim 6, wherein the pipe joint comprises: the positioning structure is a positioning bolt which is fixed in a bolt hole penetrating from the top surface of the upper base to the mounting groove.
8. The prefabricated assembled jacking pipe joint of claim 1, wherein the pipe joint comprises: the first pin shaft, the second pin shaft and the third pin shaft are all elastic pins.
9. The prefabricated assembled jacking pipe joint of claim 1, wherein the pipe joint comprises: and a plurality of water stopping grooves are formed in the left and right sections of the upper pipe joint and/or the lower pipe joint, and water-swelling strips are arranged in the water stopping grooves.
10. The prefabricated assembled jacking pipe joint of claim 1 or 9, wherein the prefabricated assembled jacking pipe joint comprises: and caulking grooves are formed in the inner side edges of the left and right cross sections of the upper pipe joint and the lower pipe joint, and the two-component polysulfide sealant is filled after the caulking grooves in the cross section of the upper pipe joint and the caulking grooves in the cross section of the lower pipe joint are spliced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010291249.8A CN111485907B (en) | 2020-04-14 | 2020-04-14 | Spring clip connection type prefabricated assembled pipe-jacking pipe joint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010291249.8A CN111485907B (en) | 2020-04-14 | 2020-04-14 | Spring clip connection type prefabricated assembled pipe-jacking pipe joint |
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| CN111485907A true CN111485907A (en) | 2020-08-04 |
| CN111485907B CN111485907B (en) | 2024-06-14 |
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