Pipeline linear arrangement device for curved pipe jacking construction

Abstract

The application discloses a pipeline alignment arrangement device for curved pipe jacking construction and relates to the technical field of curved pipe jacking construction.The device comprises two mutually butted pipe sections, the spigot end of one pipe section is annularly provided with a hydraulic push rod abutting against the other pipe section, further comprises an elastic abutting piece, a clamping assembly movably inserted on the elastic abutting piece, and the inner wall of the spigot end of the pipe section is symmetrically embedded with a check tooth plate matched with the clamping assembly.When the hydraulic push rod is elongated to gradually enlarge the gap between the two pipe sections, the elastic abutting piece is gradually moved outward under the elastic action, and the clamping assembly is abutted on the check tooth plate to support the elastic abutting piece.The elastic abutting piece is always abutted on the spigot end of the subsequent pipe section under the elastic action, and when the hydraulic push rod expands the gap between the two pipe sections to a corresponding size, the clamping assembly is clamped into the check tooth plate, and the fixed elastic abutting piece is used to support the pipe section.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of curved pipe jacking construction, in particular to a pipeline alignment arrangement for curved pipe jacking construction. BACKGROUND

[0002] In the process of pipe jacking design and construction, due to the reasons such as the congestion of original underground various pipelines, the environmental protection requirements of ground buildings and the differences in geological conditions, the pipe jacking route is always forced to be curved. In this case, the construction technology of using shield machinery or pipe jacking facilities to make the center line of the pipe segment fully advance according to the designed arc is called curved pipe jacking technology. It is a commonly used pipe laying method at present. Curved pipe jacking is the frontier technology of pipe jacking engineering, which solves the problem that straight pipe jacking has to add pipe jacking wells or even underground butt joint in order to avoid obstacles in the city with increasingly perfect infrastructure, greatly optimizing the construction scheme.

[0003] The existing patent application with the patent publication number CN103292036A and the publication date of September 11, 2013 is named "an assembled curved steel pipe jacking segment head and its jacking method". The patent comprises a steel pipe jacking segment, one end of the steel pipe jacking segment is provided with a socket, the other end of the steel pipe jacking segment is provided with a spigot, the corresponding spigot and socket of the two steel pipe jacking segments form a segment pair, the spigot end and the socket end are respectively provided with a stiffening ring, the rear part of the stiffening ring is provided with a longitudinal stiffening inner lining plate, the longitudinal stiffening inner lining plates of the spigot end and the socket end are respectively installed with detachable fixing plates, the detachable fixing plates of the corresponding socket end and spigot end of the two adjacent steel pipe segments are installed with an assembled force transmission plate, and are connected through a limiting bolt. The wood gasket is arranged between the assembled force transmission plate and the detachable fixing plate of the socket end. The detachable fixing plates of the socket end and the spigot end can be installed with a jack. The advantages of the present application are simple structure, compact arrangement, convenient construction, firm structure, low cost, easy operation during construction, and short construction period.

[0004] The above-mentioned application has the following deficiencies. When curved pipe jacking is carried out, a jack or a hydraulic push rod is generally installed between two pipe segments. During pipe jacking, the size of the gap on one side of the two pipe segments is controlled according to the needs to achieve the purpose of curved pipe jacking. However, during the process of jacking the pipe segment, the jacking force is always fully applied to the jack. In addition, the friction force of the pipe segment in the soil is huge. The pipe segment may also be twisted during the process of being pushed by the hydraulic push rod. The jack is easy to be damaged due to long-term continuous stress. SUMMARY

[0005] The purpose of the present application is to provide a pipeline alignment arrangement for curved pipe jacking construction to solve the above-mentioned deficiencies in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A pipeline alignment device for curved pipe jacking construction includes two interlocking pipe sections. One pipe section has a ring of hydraulic push rods at its socket end that abut against the other pipe section. The device also includes an elastic abutment member movably sleeved on the hydraulic push rods. One end of the elastic member is elastically connected to the socket end of the pipe section 1, and the other end is embedded in a locking assembly at the joint of the two pipe sections 1, which is movably inserted into the elastic abutment member. The inner wall of the socket end of the pipe section is symmetrically fitted with check teeth that cooperate with the locking assembly. When the hydraulic push rod extends, gradually increasing the gap between the two pipe sections, the elastic abutment member gradually moves outward under elastic action. Then, the hydraulic push rod retracts, and the locking assembly abuts against the check teeth, allowing the elastic abutment member to provide support.

[0008] Preferably, one of the pipe sections has a steel collar fitted onto its socket end for connecting to the spigot end of another pipe section, and a gasket ring is also installed between the two pipe sections.

[0009] Preferably, one of the pipe sections has a receiving groove for accommodating each hydraulic push rod, and one end of the hydraulic push rod is fixed to the inner wall of the receiving groove.

[0010] Preferably, the elastic abutment includes an abutment support frame movably sleeved outside the hydraulic push rod, a top spring is installed between one end of the abutment support frame and the receiving groove, and a docking plate is fixedly connected to the other end of the abutment support frame, and the socket end and the spigot end of the pipe section are respectively provided with slots that match the docking plate.

[0011] Preferably, the snap-fit ​​assembly includes a plug plate movably inserted into the abutment support frame, and both ends of the plug plate are fixedly connected to a support rod penetrating the abutment support frame. An elastic element is installed between the abutment support frame and the support rod. Under the force of the elastic element, the support rod always abuts against the check tooth plate. The tooth cross-section of the check tooth plate is wedge-shaped.

[0012] Preferably, a sealing test component corresponding to the elastic abutment is installed on the inner wall of the socket end of the pipe section. When the snap-fit ​​component pushes up one end of the sealing test component, the other end of the sealing test component impacts the pipe section.

[0013] Preferably, the sealing test assembly includes a bracket installed in the pipe section, with a connecting plate elastically hinged to the end of the bracket. One end of the connecting plate is fixedly connected to a stop block that contacts the plug-in plate, and the other end is fixedly connected to a hammer.

[0014] Preferably, the abutting support frame is provided with a plug-in slot matched with the plug-in plate, and a limiting rod is installed through the abutting support frame, and the plug-in plate is provided with a plug hole matched with the limiting rod, and when the supporting rod is clamped between the adjacent teeth of the check tooth plate, the limiting rod is on the same horizontal line with the plug hole.

[0015] Preferably, the abutting support frame is provided with a plug-in slot matched with the plug-in plate, and a limiting rod is installed through the abutting support frame, and the plug-in plate is provided with a plug hole matched with the limiting rod, and when the supporting rod is clamped between the adjacent teeth of the check tooth plate, the limiting rod is on the same horizontal line with the plug hole.

[0016] Preferably, the abutting support frame is provided with a plug-in slot matched with the plug-in plate, and a limiting rod is installed through the abutting support frame, and the plug-in plate is provided with a plug hole matched with the limiting rod, and when the supporting rod is clamped between the adjacent teeth of the check tooth plate, the limiting rod is on the same horizontal line with the plug hole.

[0017] In the above technical solution, the elastic abutting piece is always abutted on the plug-in end of the rear pipe section under the action of the elastic force, the two butted pipe sections after being expanded by the hydraulic push rod are limited to each other, the pipe section is prevented from being twisted during the advancing of the hydraulic push rod, the clamping assembly on the elastic abutting piece is matched with the check tooth plate, when the gap between the two pipe sections is expanded to a corresponding size by the hydraulic push rod, the clamping assembly is clamped into the check tooth plate, the pipe section is supported by the fixed elastic abutting piece, and the stress intensity of the hydraulic push rod is reduced, so that the hydraulic push rod is not easily damaged after multiple expansion and contraction.

[0018] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, rather than limiting the present disclosure.

[0019] The present application provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0021] Figure 1 It is a whole structure schematic diagram of the pipeline linear arrangement device for the curved pipe jacking construction of the present application;

[0022] Figure 2 It is a whole structure schematic diagram of the pipe section socket end in the pipeline linear arrangement device for the curved pipe jacking construction of the present application;

[0023] Figure 3 It is an enlarged schematic diagram of A in the pipeline linear arrangement device for the curved pipe jacking construction of the present application;

[0024] Figure 4 Figure 1 is a structural schematic diagram of a single pipe section of a pipeline linear arrangement device for curved pipe jacking construction according to the present application;

[0025] Figure 5 Figure 2 is a structural schematic diagram of an elastic abutting member of a pipeline linear arrangement device for curved pipe jacking construction according to the present application;

[0026] Figure 6 Figure 3 is a structural schematic diagram of a clamping assembly of a pipeline linear arrangement device for curved pipe jacking construction according to the present application;

[0027] Figure 7 Figure 4 is a connection schematic diagram of a clamping assembly and an elastic abutting member of a pipeline linear arrangement device for curved pipe jacking construction according to the present application;

[0028] Figure 8 Figure 5 is a structural schematic diagram of a sealing test assembly of a pipeline linear arrangement device for curved pipe jacking construction according to the present application.

[0029] Explanation of reference signs:

[0030] 1, pipe section; 102, check tooth plate; 103, containing groove; 104, insertion slot; 105, guide slot; 2, hydraulic push rod; 201, connecting frame; 202, pressing block; 2023, clamping groove; 3, elastic abutting member; 301, abutting support frame; 302, top spring; 303, butt plate; 304, insertion slot; 305, limiting rod; 306, mounting frame; 307, lead screw; 308, top block; 309, guide rail; 4, clamping assembly; 401, insertion plate; 402, brace rod; 403, insertion hole; 404, sliding groove; 5, steel sleeve ring; 6, gasket ring; 7, elastic member; 8, sealing test assembly; 801, support; 802, connecting plate; 803, abutting block; 804, hammering member; 9, abutting pressure member; 10, push mechanism; 1001, pad rod; 1002, abutting tooth rack. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without any inventive effort fall within the scope of protection of the present disclosure.

[0032] Please refer to Figures 1-8The pipeline linear arrangement device for the curved pipe jacking construction comprises two mutually butted pipe sections 1, and the spigot end of one pipe section 1 is annularly distributed with hydraulic push rods 2 abutting against the other pipe section 1, further comprising elastic abutting members 3 movably sleeved on the hydraulic push rods 2, one end of which is elastically connected with the spigot end of the pipe section 1, and the other end of which is embedded in the joint assembly 4 at the butting position of the two pipe sections 1, which is movably inserted on the elastic abutting member 3, and the inner wall of the spigot end of the pipe section 1 is symmetrically embedded with check tooth plates 102 matched with the joint assembly 4, when the hydraulic push rods 2 are elongated to gradually increase the gap between the two pipe sections 1, the elastic abutting members 3 are gradually moved outwards under the elastic force, then the hydraulic push rods 2 are retracted, the joint assembly 4 is abutted against the check tooth plate 102, and the elastic abutting member 3 is supported.

[0033] Specifically, the whole pipeline is composed of multiple groups of mutually butted pipe sections 1, in the process of pipe jacking construction, the first pipe section 1 is excavated forward by the pipe jacking machine at the front end, then the subsequent pipe sections 1 are hoisted into the working well, and then the subsequent pipe sections 1 are pushed forward under the force of the hydraulic equipment and butted against the previous pipe section 1, and the spigot end of the subsequent pipe section 1 is abutted against the spigot end of the previous pipe section 1, when the underground obstacles need to be avoided, the multiple hydraulic push rods 2 are controlled to be retracted, when the multiple hydraulic push rods 2 on one side of the pipe section 1 are stretched, the gap between the two mutually butted pipe sections 1 on one side is gradually increased, if the gap on the left side is increased, the pipe section 1 will bend towards the right side, if the gap on the right side is increased, the pipe section 1 will bend towards the left side, the pipeline bending is realized by simply adjusting the stroke difference between the left and right hydraulic push rods 2 in the process of pipe jacking construction, if the pipe jacking is turned to the left, the multiple hydraulic push rods 2 on the right side are pushed more, and the multiple hydraulic push rods 2 on the left side are pushed less, then the top head will be deflected to the left side, the stroke difference between the left and right hydraulic push rods 2 is determined according to the size of the curve turning radius, and is adjusted according to the axis measurement result, since the elastic abutting member 3 is embedded in the spigot end of one pipe section 1 and the spigot end of the other pipe section 1, the stability of the butting between the subsequent pipe section 1 and the previous pipe section 1 can be ensured when the two pipe sections 1 are completely butted, when the gap between the two pipe sections 1 is increased by the hydraulic push rod 2, the elastic abutting member 3 is always abutted against the subsequent pipe section 1 under the elastic force, that is, the part of the elastic abutting member 3 embedded in the spigot end will not be separated from the spigot end even when the gap is increased, the pipe section 1 will not be relatively twisted in the process of pushing by the hydraulic push rod 2, the stability of the linear arrangement of the curved pipe is improved, and the hydraulic push rod 2 does not need to always play a supporting role, and can be retracted after being pushed to a certain extent, since the joint assembly 4 on the elastic abutting member 3 is clamped into the check tooth plate 102, the elastic abutting member 3 will not move back under the force of the pipe section 1, the elastic abutting member 3 cooperates with the joint assembly 4 to play a role of abutting and supporting.

[0034] Compared with the prior art, the elastic abutting piece 3 is arranged to abut against the spigot end of the rear pipe section 1 under the elastic force, the two abutted pipe sections 1 after being expanded by the hydraulic push rod 2 are limited to each other, the pipe section 1 is prevented from being twisted during the advancing of the hydraulic push rod 2, the clamping assembly 4 arranged on the elastic abutting piece 3 is matched with the check tooth plate 102, when the gap between the two pipe sections 1 is expanded to a corresponding size by the hydraulic push rod 2, the clamping assembly 4 is clamped into the check tooth plate 102, the pipe section 1 is supported by the fixed elastic abutting piece 3, and the stress intensity of the hydraulic push rod 2 is reduced, so that the hydraulic push rod 2 is not easily damaged after multiple operations.

[0035] In the further embodiment of the present application, the spigot end of one pipe section 1 is sleeved with a steel sleeve ring 5 for abutting the spigot end of another pipe section 1, and a gasket ring 6 is arranged between the two pipe sections 1, specifically, the steel sleeve ring 5 is preassembled on the spigot end of the front pipe section 1, the spigot end of the rear pipe section 1 is inserted into the steel sleeve ring 5 to complete the abutting when the construction is carried out, the steel sleeve ring 5 is sleeved outside the connection of the two pipe sections 1 after the abutting, the steel sleeve ring 5 is nested with a water stop sealing ring, and the abutting and sealing and waterproof effects are achieved, and the gasket ring 6 is completely wrapped by the steel sleeve ring 5.

[0036] In the further embodiment of the present application, the pipe section 1 is provided with a containing groove 103 for containing the hydraulic push rod 2, one end of the hydraulic push rod 2 is fixed to the inner wall of the containing groove 103, specifically, the hydraulic push rod 2 is arranged in the containing groove 103 arranged in the pipe section 1, the hydraulic push rod 2 can be hidden, the annularly distributed multiple hydraulic push rods 2 do not affect the arrangement of the line pipe in the pipe, and the reaction force of the hydraulic push rod 2 during the pushing can act on the end of the pipe section 1, if the hydraulic push rod 2 is directly arranged in the inner wall of the pipe section 1, a supporting mechanism for reversely supporting the hydraulic push rod 2 needs to be additionally arranged in the pipe, so that the reaction force during the curved pipe pushing does not cause the pipe section 1 to be damaged after being pressed, and the containing groove 103 is directly arranged, so that the hydraulic push rod 2 can quickly transmit the force to the pipe section 1 after being stressed.

[0037] In a further embodiment of the present application, the elastic abutting member 3 comprises an abutting support frame 301 movably sleeved on the hydraulic push rod 2, a top spring 302 is installed between one end of the abutting support frame 301 and the accommodating groove 103, and a part of the end is in the accommodating groove 103, a butt plate 303 is fixedly connected to the other end of the abutting support frame 301, a lead screw 307 driven by a motor is installed on the abutting support frame 301, a top block 308 is threadedly sleeved on the lead screw 307, a sliding groove 404 matched with the top block 308 is formed on the clamping assembly 4, the spigot end and the socket end of the pipe section 1 are respectively provided with a plug groove 104 matched with the butt plate 303, and the inner wall of the gasket ring 6 is further provided with a through groove for the butt plate 303 to penetrate. Specifically, when the other pipe section 1 is not completed abutting, the lead screw 307 is first controlled to rotate, the top block 308 is moved upward to the end of the sliding groove 404 to lift the clamping assembly 4, the clamping assembly 4 is fixed at a certain height so as not to cooperate with the check tooth plate 102, under the action of the top spring 302, the butt plate 303 on the abutting support frame 301 is at the spigot end and exposes a distance, when the subsequent pipe section 1 is put in, the plug groove 104 on the socket end of the pipe section 1 is aligned with the position of the butt plate 303, the pipe section 1 is pushed in through the hydraulic equipment, in the first stage of abutting of the two pipe sections 1, the butt plate 303 on the abutting support frame 301 is always embedded in the plug groove 104 of the interface end of the subsequent pipe section 1, so as to ensure that the pipe section 1 is not twisted and deviated during abutting, and ensure that the two pipe sections 1 can stably reach the second abutting stage from the first abutting stage, in the second abutting stage, the abutting support frame 301 moves back to the previous pipe section 1 due to the extrusion of the subsequent pipe section 1, so that the butt plate 303 on the abutting support frame 301 is not only embedded in the plug groove 104 of the socket end, but also embedded in the plug groove 104 of the spigot end of the previous pipe section 1, thereby improving the stability of the connection during the pipe jacking process after the abutting of the pipe sections 1, when it is necessary to jacking the connection of the pipe sections 1, the lead screw is reversely rotated, the top block 308 is moved downward to loosen the clamping assembly 4, and the clamping assembly 4 is re-cooperated with the check tooth plate 102 to avoid the return of the elastic abutting member 3.

[0038] In a further embodiment of the present application, the clamping assembly 4 comprises an insertion plate 401 movably inserted on the abutting support frame 301, and the insertion plate 401 is fixedly connected with a support rod 402 penetrating through the abutting support frame 301, the abutting support frame 301 is provided with a guide rail 309 for the sliding of the support rod 402, a resilient member 7 is installed between the abutting support frame 301 and the support rod 402, the resilient member 7 is located in the guide rail 309, the top of the resilient member 7 is fixed to the inner wall top of the guide rail 309, and the bottom of the resilient member 7 is connected with the support rod 402, under the action of the resilient member 7, the support rod 402 is always in contact with the check tooth plate 102, the tooth section of the check tooth plate 102 is wedge-shaped, specifically, when the abutting support frame 301 moves under the action of the top spring 302, the support rod 402 will always advance and fluctuate upward against the check tooth plate 102, the wedge-shaped teeth on the check tooth plate 102 can not affect the support rod 402 when moving outward toward the socket end of the pipe section 1, and when the abutting support frame 301 is pressed and ready to move inward, the support rod 402 will be clamped in the teeth on the check tooth plate 102, thereby preventing the resilient abutting member 3 from moving back into the socket end of the pipe section 1, allowing the resilient abutting member 3 to support the gap, and allowing the clamping assembly 4 to always contact the check tooth plate 102 under the action of the elastic member, so that the resilient abutting member 3 can be positioned and checked at any time, so as to timely reduce the force borne by the hydraulic push rod 2.

[0039] In a further embodiment of the present application, the inner wall of the socket end of the pipe section 1 is provided with a sealing test assembly 8 corresponding to the resilient abutting member 3, when the clamping assembly 4 lifts one end of the sealing test assembly 8, the other end of the sealing test assembly 8 hits the pipe section 1, and a liquid monitoring sensor is installed in the accommodating groove 103, specifically, during the process of curved pipe jacking, it is necessary to balance the soil pressure and groundwater pressure, so it is necessary to have good sealing performance after the butt joint of adjacent pipe sections 1, generally a sealing member is installed in the steel sleeve ring 5 to play a sealing role, but the change of the angle of the pipe section 1 itself and the friction between the pipe section 1 and the soil layer during the jacking process will affect the sealing effect, especially at the position of the curved pipe, since the gap on one side is larger, the sealing effect is more difficult to guarantee, by installing the sealing test assembly 8, when the hydraulic push rod 2 lifts the connection of the pipe section 1, due to the displacement of the check tooth plate 102, the clamping assembly 4 abutting against the check tooth plate 102 fluctuates up and down, the clamping assembly 4 intermittently lifts the sealing test assembly 8, and the sealing test assembly 8 continuously knocks the position close to the connection of the pipe section 1, if the sealing effect between the two pipe sections 1 is poor, groundwater seeps into the accommodating groove 103, the liquid monitoring sensor will send an alarm to the host to directly locate the leakage position for repair, thereby improving the efficiency of pipe jacking construction.

[0040] In the further embodiment of the present application, the sealing test assembly 8 comprises a support 801 installed in the pipe joint 1, the side of the containing groove 103 is provided with a mounting groove, the bottom of the support 801 is fixedly connected with a mounting seat clamped in the mounting groove, the end of the support 801 is elastically hinged with a connecting plate 802, one end of the connecting plate 802 is fixedly connected with an abutting block 803 in contact with the plug-in plate 401, the other end is fixedly connected with a hammering piece 804, specifically, a torsion spring is installed at the hinge between the connecting plate 802 and the support 801, under the action force of the torsion spring, the abutting block 803 at one end of the connecting plate 802 is always in contact with the plug-in plate 401, if the plug-in plate 401 does not move outward, there is a gap between the hammering piece 804 and the inner wall of the pipe joint 1, when the clamping assembly 4 moves and fluctuates up and down, the plug-in plate 401 will lift the abutting block 803 at one end of the connecting plate 802, at this time, the connecting plate 802 is forced to overturn, so that the hammering piece 804 at the other end of the connecting plate 802 strikes the inner wall of the pipe joint 1, thereby adjusting the angle between the two pipe joints 1, and at the same time, the pipe joint 1 generates a larger amplitude, so as to test the sealing performance of the connection of the pipe joint 1 in advance, so as to quickly find out the problem during construction and carry out maintenance.

[0041] In the further embodiment of the present application, the abutting support frame 301 is provided with a plug-in groove 304 matched with the plug-in plate 401, the abutting support frame 301 is provided with a limiting rod 305 penetratingly installed thereon, the plug-in plate 401 is provided with a plug hole 403 matched with the limiting rod 305, the limiting rod 305 is provided with a connecting spring, when the supporting rod 402 is clamped between the adjacent teeth on the non-return tooth plate 102, the limiting rod 305 is on the same horizontal line with the plug hole 403, specifically, under normal circumstances, the limiting rod 305 cannot be inserted into the plug hole 403 on the plug-in plate 401, so as to avoid affecting the normal fluctuation of the clamping assembly 4, after the limiting rod 305 on the abutting support rod 402 is inserted into the plug hole 403 on the plug-in plate 401, the clamping assembly 4 originally movably installed on the elastic abutting piece 3 cannot move, and the two are fixed together, and the necessary condition for inserting the limiting rod 305 into the plug hole 403 is that the supporting rod 402 is between the adjacent teeth on the non-return tooth plate 102, at this time, the limiting rod 305 is on the same horizontal line with the plug hole 403, that is, at this time, the limiting rod 305 is inserted into the plug hole 403, not only fixes the elastic abutting piece 3 and the clamping assembly 4, but also limits the position of the elastic abutting piece 3, thereby further improving the supporting strength of the abutting support frame 301 in the elastic abutting piece 3.

[0042] In further embodiments of the present application, the inner wall of the abutting support frame 301 is elastically connected with a pressing piece 9, which is loosened from the limiting rod 305 under the action of elastic force, the inner wall of the accommodating groove 103 is movably embedded with a pushing mechanism 10, which is connected with the pressing piece 9 and the hydraulic push rod 2 respectively, and the two sides of the inner wall of the accommodating groove 103 are provided with guide grooves 105 for the sliding of the pushing mechanism 10, the pushing mechanism 10 comprises a pad rod 1001 slidably installed in the guide groove 105, one side of the pad rod 1001 close to the slot of the guide groove 105 is elastically connected with a pressing rack 1002, the two ends of the abutting piece are abutted with the limiting rod 305 and the pressing rack 1002 respectively, the push rod part of the hydraulic push rod 2 is sleeved with a connecting frame 201, the two ends of the connecting frame 201 are inserted into the guide grooves 105 respectively and fixedly connected with a pressing block 202, the pressing block 202 is obliquely abutted with one end of the pad rod 1001, and the pressing block 202 is provided with a clamping groove 2023 for accommodating the pad rod 1001, specifically, when the pad rod 1001 is not abutted tightly by the pressing block 202 on the connecting frame 201, the pad rod 1001 with the pressing rack 1002 is always at the deepest part of the guide groove 105, at this time, one end of the pressing piece 9 is not clamped on the pressing rack 1002, so that the active connection between the clamping assembly 4 and the elastic abutting piece 3 is maintained, so that the elastic abutting piece 3 can normally advance and extend out of the socket end of the pipe section 1 under the action of the force of the top spring 302, when the hydraulic push rod 2 makes the gap on one side of the pipe section 1 connection larger to a suitable range, the cooperation of the check tooth plate 102 and the clamping assembly 4 makes the elastic abutting piece 3 fixed at the socket end of the pipe section 1, which supports the two pipe sections 1, and makes the hydraulic push rod 2 retract, the retracted hydraulic push rod 2 drives the connecting frame 201 to move towards the socket end, so that the pressing block 202 gradually pushes out the pad rod 1001, first forcing the pressing rack 1002 to clamp one end of the pressing piece 9, at this time, the hydraulic push rod 2 is retracted again, at this time, the pad rod 1001 is clamped into the clamping groove 2023, separately drives the pressing rack 1002 to press the pressing piece 9, and the limiting rod 305 of the abutting support frame 301 is inserted into the insertion hole 403 of the insertion plate 401, thereby improving the strength and stability of the overall support of the abutting support frame 301.

[0043] In further embodiments of the present application, the inner wall of the accommodating groove 103 is movably embedded with a mounting frame 306, the mounting frame 306 is connected with the abutting support frame 301 through bolts, and arc-shaped grooves are formed in the mounting frame 306 and the abutting support frame 301, specifically, the abutting support frame 301 is sleeved outside the hydraulic push rod 2 through the mounting frame 306 movably embedded in the accommodating groove 103, which facilitates quick dismounting of the entire elastic abutting piece 3 after the gap filling at the pipe section 1 connection is completed, so that it can be recycled.

[0044] The foregoing merely illustrates some exemplary embodiments of the application, and it will be appreciated that those skilled in the art will be able to devise various modifications without departing from the spirit and scope of the application. The appended drawings and description are illustrative only, and are not intended to be limiting.

Claims

1. A pipeline alignment device for curved pipe jacking construction, comprising two interlocking pipe sections (1), wherein the socket end of one pipe section (1) is circumferentially distributed with hydraulic push rods (2) that abut against the other pipe section (1), characterized in that, Also includes: The elastic abutment (3) is movably sleeved on the hydraulic push rod (2), with one end elastically connected to the socket end of the pipe section (1) and the other end embedded in the joint of the two pipe sections (1); One of the pipe sections (1) is provided with a receiving groove (103) for accommodating each hydraulic push rod (2). One end of the hydraulic push rod (2) is fixed to the inner wall of the receiving groove (103). The elastic abutment (3) includes an abutment support frame (301) movably sleeved outside the hydraulic push rod (2). A top spring (302) is installed between one end of the abutment support frame (301) and the receiving groove (103). A docking plate (303) is fixedly connected to the other end of the abutment support frame (301). The socket end and the insertion end of the pipe section (1) are respectively provided with slots (104) that match the docking plate (303). The snap-fit ​​assembly (4) is movably inserted into the elastic abutment member (3), and the inner wall of the socket end of the pipe section (1) is symmetrically embedded with a check tooth plate (102) that cooperates with the snap-fit ​​assembly (4). The snap-fit ​​assembly (4) includes a plug plate (401) movably inserted into the abutment support frame (301), and both ends of the plug plate (401) are fixedly connected with a support rod (402) that penetrates the abutment support frame (301). An elastic element (7) is installed between the abutment support frame (301) and the support rod (402). Under the action of the elastic element (7), the support rod (402) always abuts against the check tooth plate (102). The tooth cross section of the check tooth plate (102) is wedge-shaped. The inner wall of the socket end of the pipe section (1) is equipped with a sealing test assembly (8) corresponding to the elastic abutment (3). When the snap-fit ​​assembly (4) pushes up one end of the sealing test assembly (8), the other end of the sealing test assembly (8) impacts the pipe section (1). The sealing test assembly (8) includes a bracket (801) installed in the pipe section (1). The end of the bracket (801) is elastically hinged with a connecting plate (802). One end of the connecting plate (802) is fixedly connected with an abutment (803) that contacts the plug-in plate (401), and the other end is fixedly connected with a hammer (804). When the hydraulic push rod (2) extends and the gap between the two pipe sections (1) gradually increases, the elastic abutment (3) gradually moves outward under the elastic action, and then the hydraulic push rod (2) retracts, and the snap-fit ​​assembly (4) abuts against the check tooth plate (102), so that the elastic abutment (3) provides support.

2. The pipeline alignment device for curved pipe jacking construction according to claim 1, characterized in that, One of the pipe sections (1) has a steel collar (5) fitted onto its socket end for connecting to the socket end of another pipe section (1), and a gasket ring (6) is also installed between the two pipe sections (1).

3. The pipeline alignment device for curved pipe jacking construction according to claim 1, characterized in that, The abutment support frame (301) is provided with a plug groove (304) that matches the plug plate (401). A limit rod (305) is installed through the abutment support frame (301). The plug plate (401) is provided with a plug hole (403) that matches the limit rod (305). When the support rod (402) is inserted between adjacent teeth on the check tooth plate (102), its limit rod (305) and plug hole (403) are on the same horizontal line.

4. A pipeline alignment device for curved pipe jacking construction according to claim 3, characterized in that, The inner wall of the abutting support frame (301) is elastically connected to a pressing member (9), which releases the limiting rod (305) under the action of elastic force. The inner wall of the receiving groove (103) is movably embedded with a pushing mechanism (10), which is connected to the pressing member (9) and the hydraulic push rod (2) respectively.

5. A pipeline alignment device for curved pipe jacking construction according to claim 1, characterized in that, The inner wall of the receiving groove (103) is provided with a mounting bracket (306), which is connected to the abutment support bracket (301) by bolts.

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