Large-section rectangular jacking pipe retaining device

Abstract

The invention relates to the technical field of tunnel engineering construction, in particular to a large-section rectangular jacking pipe retaining device which comprises two cross beams, two longitudinal beams, a base, a base plate, an adjusting assembly, a clamping plate, a clamping block, a wedge block, a reset ring and a reset mechanism, the two cross beams are arranged between the two longitudinal beams in a spaced mode, and the base is arranged between the two cross beams in the direction perpendicular to the ground; the base plate is rotationally arranged in the center of the side wall of the base, the adjusting assembly is installed on the base and the base plate, the middle of the clamping plate is rotationally arranged on the base plate, the clamping block is arranged at one end of the side wall of the clamping plate, the wedge block is arranged at the other end of the side wall of the clamping plate, and the reset ring is arranged at the end of the side wall of the clamping plate. And the reset ring and the clamping block are located on the two sides of the clamping plate correspondingly, the reset mechanism is arranged in an inner cavity of one longitudinal beam, and the reset mechanism corresponds to the clamping plate in position, so that the problems that a traditional retaining device needs a large amount of manpower and time to operate, the labor cost is increased, and the project progress is prolonged are solved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel engineering construction, in particular to a large-section rectangular jacking pipe stopping device. Background Art

[0002] In underground engineering construction, pipe jacking construction is a common and critical operation method, especially in the laying of urban tunnels, drainage pipes and other large underground pipelines. Pipe jacking construction uses a pipe jacking machine to gradually advance the pipeline to the required position underground. In this process, the pipe jacking needs to overcome the resistance of geological factors such as soil and rock to maintain the stable advancement of the pipeline. However, as the pipe jacking is advanced, with the advancement of each section of the pipeline, the original pipeline segment may retreat. Especially after the pipe jacking stops advancing, the pipe jacking may retreat or deflect due to external forces (such as soil compaction, groundwater changes, soil deformation, etc.), which may even affect the safety of subsequent construction and pipelines in severe cases. Traditional pipe jacking stop devices are usually manually operated by mechanical means or hydraulic systems. After the pipe jacking is completed, the stop device is manually adjusted or locked to prevent the pipe jacking from retreating during construction gaps or soil changes. Although this traditional method can effectively prevent the pipe jacking from retreating, in actual construction, it often requires a lot of manpower and time to operate, which not only increases labor costs but also delays the progress of the project. Summary of the invention

[0003] The object of the present invention is to provide a large-section rectangular jacking pipe stop device to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a large-section rectangular jacking pipe stop device, comprising: Two cross beams and two longitudinal beams, the two cross beams are arranged between the two longitudinal beams at intervals, A base, arranged between the two beams in a direction perpendicular to the ground; A base plate is rotatably disposed at the center of the side wall of the base; An adjustment component is mounted on the base and the substrate respectively; A card plate, the middle position of which is rotatably disposed on the base plate; A card block is arranged at one end of the side wall of the card plate; A wedge block is arranged at the other end of the side wall of the card plate, and the wedge block and the card block are located on the same side; A reset ring is arranged at the end of the card plate with the card block, and the reset ring and the card block are respectively located on two sides of the card plate; A reset mechanism, the reset mechanism is arranged in the inner cavity of one of the longitudinal beams, and the reset mechanism corresponds to the position of the clamping plate; The reset mechanism comprises: An insertion rod, which is inserted into one of the longitudinal beams and can slide along its own extension direction, and both ends of the insertion rod extend out of the side walls of the longitudinal beam respectively; Two racks are mirror-imaged on the top and bottom surfaces of the insertion rod, and the extension direction of the two racks is consistent with the extension direction of the insertion rod; Two fixing plates are arranged in the inner cavity of the longitudinal beam, and the two fixing plates are mirror-distributed on the upper and lower sides of the insertion rod; A first shaft rod is rotatably arranged on two fixing plates along the extending direction of the longitudinal beam; Two first gears are respectively disposed on the first shaft, and the two first gears are respectively meshed with the two racks; A lever, disposed on the first shaft; The extension rod is detachably mounted on the end of the shift rod away from the first shaft rod.

[0005] Preferably, guide rails are respectively provided at the top and bottom ends of the base.

[0006] Preferably, the clamping plate is a two-section structure, and the two sections of the clamping plate are connected by a spring.

[0007] Preferably, the end surface of the insertion rod pointing towards the base is in a wedge-shaped structure.

[0008] Preferably, the side wall of the clamping plate away from the base is located in the same vertical plane as the outer wall of the longitudinal beam.

[0009] Preferably, a through groove is provided on the outer wall corresponding to the longitudinal beam and the lever, and when the extension rod rotates to the maximum limit along with the lever toward the base, the end of the extension rod away from the first shaft rod is in the inner cavity of the longitudinal beam, and when the lever rotates to the maximum limit in the direction away from the base, the end of the lever away from the first shaft rod is in the inner cavity of the longitudinal beam.

[0010] Preferably, the adjustment component comprises: Positioning plates are arranged on both sides of the base, and the positioning plates are provided with slide grooves, the slide grooves are distributed along the rotation axis of the substrate, and a plurality of slots are provided on the inner wall of the slide groove along a circular array; A fixing rod, one end of which is disposed on the base plate, and the other end of which is located in the slide groove; The fixing block is slidably arranged on the fixing rod, and the fixing block matches the card slot.

[0011] Preferably, the length of the fixing rod is greater than the thickness of the positioning plate.

[0012] The invention proposes a large-section rectangular jacking pipe stop device, which has the following beneficial effects: the invention changes the position of the clamping block by rotating the clamping plate, thereby realizing effective fixation and release of the jacking pipe end; when the jacking pipe needs to be fixed, the clamping block can closely contact and stabilize the jacking pipe end, thereby ensuring the stability and safety of the jacking pipe; during the jacking pipe advancement process, the position of the clamping block can be changed by utilizing the reset mechanism, so that it is away from the already fixed jacking pipe end; through this mechanism, the movement of the clamping block does not require manual operation; the reset mechanism enables the clamping block to automatically release the fixed jacking pipe end as the clamping plate rotates, thereby providing sufficient space and stability for the subsequent advancement of the jacking pipe; all adjustments in this process can be completed without external intervention, thereby reducing dependence on manual operation and improving construction efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the cross beam and longitudinal beam of the present invention; Figure 3 It is a schematic diagram of the adjustment component of the present invention; Figure 4 It is a schematic diagram of the dynamic device of the present invention; Figure 5 It is a schematic diagram of the reset mechanism of the present invention; Figure 6 Schematic diagram of the connection assembly of the present invention.

[0014] In the figure: 1, cross beam, 2, longitudinal beam, 3, base, 4, base plate, 5, adjustment component, 51, positioning plate, 52, slide groove, 53, card groove, 54, fixing rod, 55, fixing block, 6, card plate, 7, card block, 8, wedge block, 9, reset ring, 10, reset mechanism, 101, plug rod, 102, rack, 103, fixing plate, 104, first shaft rod, 105, first gear, 106, lever, 107, extension rod, 11, dynamic device, 111, driving plate, 112, shell, 113, upper cover, 114, bolt, 115, second shaft rod, 116, second gear, 117, cam, 118, push block, 12, connecting component, 121, connecting rod, 122, first connecting belt, 123, second connecting belt, 13, spring leaf, 14, bottom plate, 15, guide rail. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-6 The present invention provides a technical solution for a large-section rectangular jacking pipe stop device. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process. The specific working is as follows.

[0017] A large-section rectangular jacking pipe stop device comprises: a crossbeam 1, a longitudinal beam 2, a base 3, a base plate 4, an adjustment component 5, a clamping plate 6, a clamping block 7, a wedge block 8, a reset ring 9 and a reset mechanism 10.

[0018] The two cross beams 1 are arranged between the two longitudinal beams 2 at intervals. The two cross beams 1 are made of 20a I-beams, which have high strength and durability and can effectively withstand the huge load generated by the jacking pipe. The cross-sectional shape of the I-beam makes the cross beam have good bending resistance and bearing capacity, and is suitable for use as a structure to support lateral loads. The cross beam 1 and the longitudinal beam 2 form an open-shaped bracket, and the back and both sides of the bracket are respectively provided with 45° inclined I-beams for support. The inclined I-beam support structure can effectively enhance the bracket's ability to resist lateral forces and prevent the structure from tilting or becoming unstable. By setting the I-beam at a 45° angle, the best mechanical effect can be achieved, the rigidity and stability of the bracket can be increased, and the bracket can be avoided. In order to prevent the bracket from tilting or deforming due to uneven ground or other external factors, the two longitudinal beams 2 are made of 300×200 rectangular steel pipes. The cross-sectional design of the rectangular steel pipe enables it to provide higher stability and deformation resistance. At the same time, the cavity inside the rectangular steel pipe can reduce weight and increase the integrity of the structure. The rectangular steel pipe has strong strength and rigidity and can effectively support and share the longitudinal force. The base 3 is arranged between the two cross beams 1 in a direction perpendicular to the ground, and the base plate 4 is rotatably arranged at the center of the side wall of the base 3. In order to meet most construction requirements, the rotation angle of the base plate 4 is within ±30°. At the same time, the connection position of the base plate 4 and the base 3 is made of highly light wear-resistant materials to ensure good mechanical properties. , such as high-strength steel, alloy materials, etc., the adjustment component 5 is respectively installed on the base 3 and the base plate 4, the adjustment component 5 is used to fix the relative position of the base plate 4 and the base 3, the middle position of the clamping plate 6 is rotatably set on the base plate 4, the rotation axis of the clamping plate 6 is along the radial direction of the base plate 4, and when no external force is applied, the clamping plate 6 and the base plate 4 remain parallel, the clamping block 7 is set at one end of the side wall of the clamping plate 6, the clamping block 7 contacts the end of the jacking pipe to achieve the fixing effect of the jacking pipe, the material of the clamping plate 6 is usually selected from high-strength alloy to ensure wear resistance and stability in long-term use, the wedge block 8 is set at the other end of the side wall of the clamping plate 6, and the jacking pipe moves from one end of the clamping plate 6 where the clamping block 7 is installed to one end of the clamping plate 6 where the wedge block 8 is installed When the jacking pipe contacts the wedge block 8, one end of the card plate 6 on which the wedge block 8 is installed will move toward the base 3, and at the same time, one end of the card plate 6 on which the wedge block 8 is installed will bend. A reset ring 9 is arranged at the end of the side wall of the card plate 6, and the reset ring 9 and the block 7 are respectively located on both sides of the card plate 6. The reset mechanism 10 will cooperate with the reset ring 9 to gradually restore one end of the card plate 6 on which the block 7 is installed to a position parallel to the base plate 4. The reset mechanism 10 is arranged in the inner cavity of one of the longitudinal beams 2, and the reset mechanism 10 corresponds to the position of the card plate 6. Through the movement of the jacking pipe and the reset mechanism 10, one end of the card plate 6 on which the block 7 is installed will gradually restore to a position parallel to the base plate 4, thereby making the block 7 away from the end of the jacking pipe, which is convenient for the installation of the next jacking pipe.

[0019] The reset mechanism 10 includes an insertion rod 101 , a rack 102 , two fixing plates 103 , a first shaft rod 104 , two first gears 105 , a lever 106 and an extension rod 107 .

[0020] The plug rod 101 is inserted into one of the longitudinal beams 2 and can slide along its own extension direction. The two ends of the plug rod 101 extend out of the side walls of the longitudinal beam 2 respectively, and at the same time provide sufficient contact area outside the side walls of the longitudinal beam 2 to ensure the stable operation of the plug rod 101. The two racks 102 are mirror-imaged on the top and bottom surfaces of the plug rod 101 to ensure uniform force distribution and improve transmission accuracy. The extension direction of the two racks 102 is consistent with the extension direction of the plug rod 101. Two fixing plates 103 are arranged in the inner cavity of the longitudinal beam 2, and the two fixing plates 103 are mirror-imaged on the upper and lower sides of the plug rod 101 to support and fix the other parts of the reset mechanism 10. Components ensure the stability and accuracy of the insertion rod 101 and rack 102 system. The fixed plates 103 are mirror-distributed on the upper and lower sides of the insertion rod 101. The first shaft rod 104 is rotatably arranged on the two fixed plates 103 along the extension direction of the longitudinal beam 2. Components such as coil springs are installed between the first shaft rod 104 and the fixed plates 103, which are not shown in the figure. Two first gears 105 are respectively arranged on the first shaft rod 104, and the two first gears 105 are respectively engaged with the two racks 102. The shift rod 106 is arranged on the first shaft rod 104, and the extension rod 107 is detachably installed on the end of the shift rod 106 away from the first shaft rod 104.

[0021] In this embodiment, at least one reset mechanism 10 is provided, and the number of reset mechanisms 10 can be increased according to actual needs, and multiple reset mechanisms 10 are distributed on the longitudinal beam 2 in a circular array to cope with the use of the clamping plate 6 within the range of ±30°.

[0022] The top and bottom ends of the base 3 are respectively provided with guide rails 15 , which include but are not limited to heavy-duty linear guide rails 15 , and have a limiting function, so that the base 3 can move within a predetermined range while ensuring that it can bear a large load.

[0023] The clamping plate 6 is a two-stage structure, and the two-stage structure of the clamping plate 6 is connected by a spring 13, so that one end of the clamping plate 6 on which the wedge block 8 is installed can still approach the base 3 when the other end of the clamping plate 6 moves to the maximum limit. At the same time, the elastic force generated by the spring 13 makes the clamping block 7 on the clamping plate 6 more firmly fixed on the end surface of the top pipe.

[0024] The end face of the insertion rod 101 pointing in the direction of the base 3 is in a wedge-shaped structure. The wedge-shaped structure is adopted to achieve more precise positioning during the resetting process. When the reset ring 9 is clamped on the end of the top pipe by the clamping block 7, the end of the clamping plate 6 on which the reset ring 9 is installed is bent away from the base 3. The wedge-shaped structure enables the end of the insertion rod 101 to be accurately inserted into the reset ring 9, and at the same time, as the insertion depth of the insertion rod 101 increases, the end of the clamping plate 6 on which the reset ring 9 is installed is gradually reset.

[0025] The side wall of the clamping plate 6 away from the base 3 and the outer wall of the longitudinal beam 2 are located in the same vertical plane, so as to avoid the jacking pipe contacting the end of the clamping plate 6 during the advancement of the jacking block, thereby preventing the advancement of the jacking pipe and even causing damage to the device.

[0026] A through groove is provided on the outer wall corresponding to the longitudinal beam 2 and the lever 106, and the size of the through groove limits the rotation angle of the lever 106. When the extension rod 107 rotates with the lever 106 toward the base 3 to the maximum limit, the end of the extension rod 107 away from the first shaft rod 104 is in the inner cavity of the longitudinal beam 2. The extension rod 107 is driven by the advancing jacking pipe. When the jacking pipe drives the extension rod 107 to rotate toward the base 3 to the maximum limit, the jacking pipe continues to advance, and the extension rod 107 will be in the inner cavity of the longitudinal beam 2. After completing the driving of the insertion rod 101 At the same time, the extension rod 107 is prevented from hindering the advancement of the jacking pipe. When the lever 106 rotates to the maximum limit in the direction away from the base 3, the end of the lever 106 away from the first shaft rod 104 is in the inner cavity of the longitudinal beam 2. When the number of reset mechanisms 10 is greater than one, only one reset mechanism 10 works at a time, and the extension rod 107 on the unworked reset mechanism 10 is removed. At this time, under the action of the coil spring, the lever 106 will be in the inner cavity of the longitudinal beam 2, avoiding the unworked reset mechanism 10 from affecting the overall operation of the device.

[0027] The adjustment assembly 5 includes a positioning plate 51 , a fixing rod 54 and a fixing block 55 .

[0028] The positioning plates 51 are arranged on both sides of the base 3, and a slide groove 52 is opened on the positioning plate 51 along the rotation axis direction of the substrate 4. A plurality of slots 53 are opened on the inner wall of the slide groove 52 along a ring array, and the slide groove 52 is annular in structure; one end of a fixing rod 54 is arranged on the substrate 4, and the other end of the fixing rod 54 is located in the slide groove 52; the fixing rod 54 is arranged along the rotation axis direction of the substrate 4, and the cooperation between the fixing rod 54 and the slide groove 52 limits the rotation of the substrate 4 within the range of ±30°; the fixing block 55 is slidably arranged on the fixing rod 54, and the fixing block 55 matches the slot 53, and the fixing block 55 is slid into the slot 53 to achieve the fixation of the relative position of the substrate 4 and the positioning plate 51.

[0029] The length of the fixing rod 54 is greater than the thickness of the positioning plate 51, so that the fixing block 55 has two positions when sliding along the fixing rod 54. The first position is that the fixing block 55 is in the slot 53, and the second position is that the fixing block 55 is out of the slot 53. The fixing block 55 can be out of the slot 53 and can also slide into the slot 53.

[0030] A bottom plate 14 is arranged between the bottom ends of the two longitudinal beams 2, and a fixing hole is opened on the bottom plate 14. A dynamic device 11 is installed on the bottom plate 14 to connect the device and the ground. At the same time, according to the thrust generated by the top pipe, the fixing effect between the anti-retraction device and the ground is dynamically adjusted. A connecting component 12 is installed in the longitudinal beam 2 where the reset mechanism 10 is not installed. The connecting component 12 connects the base 3 and the dynamic device 11, thereby realizing the movement adjustment through the base 3.

[0031] The dynamic device 11 includes a driving plate 111 , a housing 112 , an upper cover 113 , a bolt 114 , a second shaft 115 , a second gear 116 , a cam 117 and a push block 118 .

[0032] The driving plate 111 is slidably arranged on the bottom plate 14, and the driving plate 111 slides along the extension direction of the bottom plate 14. A mounting groove is provided in the middle of the top surface of the driving plate 111. Tooth grooves are provided on the top surface of the driving plate 111 and on both sides of the mounting groove. The tooth grooves are distributed along the extension direction of the driving plate 111. The shell 112 is installed on the top surface of the bottom plate 14, and the shell 112 is in the mounting groove. The top and bottom ends of the shell 112 are open structures. The upper cover 113 is installed on the top of the shell 112. The upper cover 113 and The housing 112 needs to withstand vertical force. The housing 112 and the upper cover 113 are made of high-strength and high-rigidity materials with high compressive resistance, such as alloy steel. The top of the bolt 114 is installed on the upper cover 113, and the bottom of the bolt 114 passes through the installation slot and is fixed to the ground. The bolt 114, the upper cover 113 and the housing 112 are used to achieve a preliminary fixing effect on the device. The second shaft 115 is rotatably arranged in the housing 112, and the two ends of the second shaft 115 extend out of the side walls of the housing 112 respectively. The two second gears The second gears 116 are respectively arranged at both ends of the second shaft 115, and the two second gears 116 are respectively meshed with the tooth grooves on the driving plate 111, the cam 117 is arranged on the second shaft 115, and the cam 117 is located in the housing 112, and the outer wall of the cam 117 is a gradually opening structure. When the cam 117 rotates, the shape of its outer wall will push the two push blocks 118 engaged with it, and the two push blocks 118 are mirror-imaged at the upper and lower sides of the cam 117, and one push block 118 is arranged on the bottom surface of the upper cover 113, and the other push block 118 is arranged on the bottom surface of the upper cover 113. A push block 118 is arranged on the top surface of the bottom plate 14, and the push block 118 is engaged with the outer wall of the cam 117. The two push blocks 118 can move in the vertical direction when the cam 117 rotates. As the cam 117 rotates, the distance between the two push blocks 118 gradually increases, thereby forming a greater fixing force. The contact area between the cam 117 and the push block 118 is designed with a lubricating oil groove or lubricating hole, not shown in the figure, to ensure that the lubricating oil can be evenly distributed between the contact surfaces to form an oil film, reduce direct metal contact, and reduce the friction coefficient.

[0033] In this embodiment, the number of dynamic devices 11 can be adjusted according to demand to provide a fixing force that meets the demand. When the number of dynamic devices 11 is greater than one, adjacent driving plates 111 are connected in a hard connection manner.

[0034] The connecting assembly 12 includes a connecting rod 121 , a first connecting belt 122 and a second connecting belt 123 .

[0035] The connecting rod 121 is rotatably arranged in the corresponding longitudinal beam 2; one end of the first connecting belt 122 is connected to the top of the connecting rod 121, and the other end of the first connecting belt 122 is connected to the base 3; one end of the second connecting belt 123 is connected to the driving plate 111, and the other end of the second connecting belt 123 is connected to the bottom end of the connecting rod 121; the distance between the top end of the connecting rod 121 and the rotation point of the connecting rod 121 is greater than the distance between the bottom end of the connecting rod 121 and the rotation point of the connecting rod 121, so as to form a longer force arm, thereby generating a greater driving force to pull the displacement of the driving plate 111.

[0036] Working principle: The two sets of anti-retraction devices are distributed in mirror image on both sides of the jacking pipe, and the bracket composed of the crossbeam 1 and the longitudinal beam 2 is fixed on the ground through the dynamic device 11. According to the angle of advancement of the jacking pipe, the inclination angle of the clamping plate 6 is adjusted, and the fixing block 55 is slid into the corresponding clamping groove 53 to fix the position of the base plate 4, ensuring that the extension direction of the base plate 4 is consistent with the advancement direction of the jacking pipe. At the same time, the extension rods 107 in the reset mechanism 10 that does not correspond to the base plate 4 are all removed, ensuring that the lever 106 in the reset mechanism 10 corresponding to the base plate 4 is installed with the extension rod 107. When the jacking pipe is advanced, the head end of the jacking pipe first contacts with the extension rod 107, and then the jacking pipe is pushed forward. The extension rod 107 is pushed forward, and moves from away from the base 3 to the base 3, until it is completely moved to the inner cavity of the corresponding longitudinal beam 2, and the insertion rod 101 moves toward the base 3. As the top pipe continues to move, the head end of the top pipe contacts the wedge block 8, causing a backlog of pressure on the wedge block 8, and the wedge block 8 moves toward the base 3. At the same time, the block 7 moves away from the base 3 and abuts against the outer wall of the top pipe. Relative sliding occurs between the block 7 and the top pipe, and the spring leaf 13 bends. When the tail end of the top pipe passes through the coverage range of the extension rod 107, the extension rod 107 and the insertion rod 101 are reset under the action of the coil spring. When the tail end of the top pipe passes through the block 7, the spring Under the action of the plate 13, the block 7 will abut against the rear end of the top pipe. At the same time, since the wedge block 8 is still squeezed by the outer wall of the top pipe, the elastic force generated by the spring plate 13 ensures the fixing effect of the block 7 and the rear end of the top pipe. When the top pipe moves backward due to the external force, the top pipe applies the force on the block 7 and transmits it to the base 3. Under the action of the guide rail 15, the base 3 will move in the opposite direction of the forward direction of the top pipe. The base 3 pulls the connecting rod 121 to deflect through the first connecting belt 122, and pulls the driving plate 111 to move through the second connecting belt 123, driving the second gear 116 to drive the cam 117 to rotate. Under the action of 17 and the two pushing blocks 118, the distance between the two pushing blocks 118 increases, thereby increasing the fixing force between the bracket and the ground. When the next jacking pipe is pushed forward, the head end of the jacking pipe will contact the extension rod 107 and drive the extension rod 107 to deflect. Repeat the above steps, the insertion rod 101 will move toward the base 3, and the insertion rod 101 will be inserted into the reset ring 9. When the insertion rod 101 moves to the maximum limit, the end of the clamping plate 6 equipped with the clamping block 7 will return to a state parallel to the base plate 4, and the clamping block 7 will be separated from the tail end of the previous jacking pipe. After the head end of the next jacking pipe contacts the tail end of the previous jacking pipe, the jacking pipe can continue to be pushed forward.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-section rectangular jacking pipe stop device, comprising: Two cross beams (1) and two longitudinal beams (2), wherein the two cross beams (1) are arranged between the two longitudinal beams (2) at intervals, and are characterized by comprising: A base (3) is arranged between the two beams (1) in a direction perpendicular to the ground; A base plate (4) is rotatably disposed at the center of the side wall of the base (3); An adjustment component (5) is mounted on the base (3) and the substrate (4) respectively; A card plate (6), the middle position of which is rotatably disposed on the base plate (4); A card block (7) is arranged at one end of the side wall of the card plate (6); A wedge block (8) is arranged at the other end of the side wall of the clamping plate (6), and the wedge block (8) and the clamping block (7) are located on the same side; A reset ring (9) is arranged at the end of the card plate (6) on one side of the card block (7), and the reset ring (9) and the card block (7) are respectively located on two sides of the card plate (6); A reset mechanism (10), the reset mechanism (10) being arranged in an inner cavity of one of the longitudinal beams (2), and the reset mechanism (10) and the clamping plate (6) corresponding in position; The reset mechanism (10) comprises: An insertion rod (101) is inserted into the longitudinal beam (2) and is capable of sliding along its own extension direction, with both ends of the insertion rod (101) extending out of the side walls of the longitudinal beam (2) respectively; Two racks (102) are arranged in a mirror image on the top surface and the bottom surface of the insertion rod (101), and the extension direction of the two racks (102) is consistent with the extension direction of the insertion rod (101); Two fixing plates (103) are arranged in the inner cavity of the longitudinal beam (2), and the two fixing plates (103) are distributed in a mirror-image manner on the upper and lower sides of the insertion rod (101); A first shaft (104) is rotatably disposed on the two fixing plates (103) along the extension direction of the longitudinal beam (2); Two first gears (105) are respectively arranged on the first shaft (104), and the two first gears (105) are respectively meshed with the two racks (102); A shifting rod (106) is disposed on the first shaft (104); An extension rod (107) detachably mounted on the end of the shifting rod (106) away from the first shaft rod (104); A bottom plate (14) is provided between the bottom ends of the two longitudinal beams (2), a fixing hole is provided on the bottom plate (14), and a dynamic device (11) is installed on the bottom plate (14) to connect the device to the ground; A connecting component (12) is installed in the longitudinal beam (2) on which the reset mechanism (10) is not installed, and the connecting component (12) connects the base (3) and the dynamic device (11).

2. A large-section rectangular jacking pipe stop device according to claim 1, characterized in that: The top end and the bottom end of the base (3) are respectively provided with guide rails (15).

3. A large-section rectangular jacking pipe stopper according to claim 1, characterized in that: The clamping plate (6) is a two-section structure, and the two sections of the clamping plate (6) are connected by a spring sheet (13).

4. A large-section rectangular jacking pipe stopper according to claim 1, characterized in that: The end surface of the insertion rod (101) pointing towards the base (3) is in a wedge-shaped structure.

5. A large-section rectangular jacking pipe stopper according to claim 1, characterized in that: The side wall of the clamping plate (6) away from the base (3) and the outer wall of the longitudinal beam (2) are located in the same vertical plane.

6. A large-section rectangular jacking pipe stopper according to claim 1, characterized in that: A through groove is provided on the outer wall corresponding to the longitudinal beam (2) and the shift rod (106); when the extension rod (107) rotates along with the shift rod (106) to the maximum limit in the direction close to the base (3), the end of the extension rod (107) away from the first shaft rod (104) is located in the inner cavity of the longitudinal beam (2); when the shift rod (106) rotates to the maximum limit in the direction away from the base (3), the end of the shift rod (106) away from the first shaft rod (104) is located in the inner cavity of the longitudinal beam (2).

7. A large-section rectangular jacking pipe stop device according to claim 1, characterized in that: The regulating component (5) comprises: A positioning plate (51) is arranged on both sides of the base (3); a slide groove (52) is provided on the positioning plate (51); the slide groove (52) is distributed along the rotation axis direction of the base plate (4); and a plurality of slots (53) are provided on the inner wall of the slide groove (52) along a circular array; A fixing rod (54), one end of the fixing rod (54) being arranged on the base plate (4), and the other end of the fixing rod (54) being located in the slide groove (52); A fixing block (55) is slidably disposed on the fixing rod (54), and the fixing block (55) matches the clamping slot (53).

8. A large-section rectangular jacking pipe stopper according to claim 7, characterized in that: The length of the fixing rod (54) is greater than the thickness of the positioning plate (51).

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