CN-121989352-A - Rectangular corrugated steel rib and concrete pouring positioning assembly and pipe jacking integral forming equipment

CN121989352ACN 121989352 ACN121989352 ACN 121989352ACN-121989352-A

Abstract

The invention belongs to the technical field of pipeline construction, in particular to a rectangular corrugated steel skeleton and concrete pouring positioning assembly and pipe jacking integral forming device, which solves the problems of inaccurate positioning of a corrugated steel skeleton, inconvenient disassembly and assembly of an inner die and poor sealing of the skeleton; the semi-circular ring is spliced into a rotating ring, the inserting part is driven to operate by a hydraulic cylinder and the like, the pipe jacking integral forming device, the bottom plate is provided with a frame body II, the semi-circular plate is rotationally connected with the fixed shaft and fixed by bolts, the inner die is spliced by the die plate, the driving part drives the die plate to move, the sealing part controls the top cover to seal the outer die, and the top cover is provided with a concrete column, so that the framework can be prevented from floating.

Inventors

XU ZONGSHENG
FENG YAN
LIN YUFANG
LI GUANGHONG
HAN JING
Ming Zhipeng
YANG WENYONG
LIU ZHUO
JIN HENG

Assignees

武汉华源电力设计院有限公司

Dates

Publication Date: 20260508
Application Date: 20251229

Claims (10)

1. Rectangular corrugated steel skeleton and concrete placement locating component, its characterized in that includes: an outer mold formed by the involution of two semicircular plates (1); a plurality of semicircular rings (2) which are arranged along the axial direction of the outer die, wherein each semicircular ring (2) is slidably sleeved on the outer peripheral wall of the outer die, two semicircular rings (2) with the same height are spliced to form a rotating ring, and The inserting part is arranged on the semicircular ring (2); The connecting part comprises a top plate (6), a connecting rod (3), a pin shaft (4) and a fixed plate (5), one end of the connecting rod (3) is hinged with the semicircular ring (2), the other end of the connecting rod (3) is hinged with the fixed plate (5) through the pin shaft (4), the fixed plate (5) is fixedly connected with the top plate (6), and the top plate (6) is slidably arranged on the semicircular plate (1) in a penetrating mode; when the semicircular ring (2) slides along the circumferential direction of the outer die, the top plate (6) is driven to move radially inwards through the transmission of the connecting rod (3) and the pin shaft (4) and is inserted into the trough of the corrugated steel skeleton (11) arranged in the outer die, so that the radial positioning of the corrugated steel skeleton (11) is realized.
2. The rectangular corrugated steel reinforced concrete pouring positioning assembly according to claim 1, wherein one end of each semicircular ring (2) is fixedly provided with a ring head (7), and when the two semicircular rings (2) are spliced, the two ring heads (7) are overlapped up and down; The hydraulic driving mechanism comprises a hydraulic cylinder (9) and a plug pin (8), wherein the cylinder body of the hydraulic cylinder (9) is hinged to one of the semicircular plates (1), the end part of a piston rod of the hydraulic cylinder (9) is connected with an annular sleeve (10), and the plug pin (8) is slidably arranged in the annular sleeve (10) in a penetrating manner and is used for simultaneously plugging two overlapped ring heads (7) so as to lock the rotating ring; the hydraulic cylinder (9) drives the bolt (8) to linearly move, so that the locked rotating ring can be driven to slide along the circumferential direction of the outer die, and the plug-in part is driven to operate.
3. The rectangular corrugated steel rib and concrete pouring positioning assembly according to claim 1, wherein a plurality of connecting lugs (26) are respectively arranged at the edge of the involution side of the two semicircular plates (1), and the corresponding connecting lugs (26) are fixedly connected through bolts (27).
4. The pipe jacking integral forming device comprises the rectangular corrugated steel rib and concrete pouring positioning assembly as claimed in claim 3, and is characterized by further comprising: A bottom plate (13); The bracket body II (24) is fixed on the bottom plate (13), a fixed shaft (25) is arranged on the bracket body II (24), and the two semicircular plates (1) are both rotatably sleeved on the fixed shaft (25); a top cover (19) for closing the top of the outer mould; The inner die (30) is arranged on the bottom plate (13) and positioned in the outer die, and the corrugated steel skeleton (11) is arranged in an annular cavity formed between the inner die (30) and the outer die.
5. The pipe-jacking integral forming device according to claim 4, wherein the inner die (30) is formed by splicing a plurality of templates I (31) and a plurality of templates II (38), and a rubber strip II (32) for sealing is arranged at the end part of the template I (31); The device also comprises a driving part, wherein the driving part is used for driving the template I (31) and the template II (38) to move so as to complete the assembly and disassembly of the inner die (30).
6. The pipe-jacking integral forming device as claimed in claim 5, wherein said driving part includes: A threaded rod II (33) vertically fixed on the bottom plate (13); At least one lower moving block (34) and at least one upper moving block (39) are sleeved on the threaded rod II (33) through threaded fit; a plurality of first rotating rods (35) hinged at one end to the lower moving block (34) and at the other end to the corresponding formwork I (31); a plurality of second rotating bars (40) hinged at one end to the upper moving block (39) and at the other end to the corresponding formwork II (38); The lower moving block (34) and the upper moving block (39) are controlled to sequentially move up and down along the threaded rod II (33), so that the die plate I (31) and the die plate II (38) can be driven to sequentially perform die assembly or die separation.
7. The jacking pipe integral forming apparatus as claimed in claim 6, further comprising a closing portion for driving said top cover (19), said closing portion including a frame body I (14), a threaded rod I (15) and a nut block (16), said frame body I (14) being fixed to said base plate (13), said threaded rod I (15) being rotatably supported within said frame body I (14), said nut block (16) being in threaded engagement with said threaded rod I (15), and said nut block (16) being in sliding engagement with said frame body I (14); One side of the top cover (19) is rotatably connected with the nut block (16); the threaded rod I (15) is rotated to drive the nut block (16) and the top cover (19) to integrally lift, so that the opening and closing of the top of the outer die are realized.
8. The jacking pipe integral forming device according to claim 7, characterized in that a sealing ring (22) is fixed at the bottom of the top cover (19), and an annular sealing groove (23) matched with the sealing ring (22) is formed at the top of the outer die.
9. The pipe jacking integral forming device according to claim 8, wherein a rubber strip I (28) is arranged on the involutory end face of one semicircular plate (1), and a groove (29) which is in press fit with the rubber strip I (28) is arranged on the involutory end face of the other semicircular plate (1).
10. The pipe jacking integral forming device according to claim 9, wherein the top cover (19) is further provided with a vertical pressing mechanism, and the vertical pressing mechanism comprises a screw rod (43), a bottom block (42), a rubber sheet (12) and a concrete column (46); The screw rod (43) is in threaded connection with the top cover (19), the bottom end of the screw rod is in rotary connection with the bottom block (42), a slot (41) is formed in the bottom of the bottom block (42), the upper part of the rubber sheet (12) is inserted into the slot (41) in an interference fit mode, and the concrete column (46) is fixed at the bottom of the rubber sheet (12); When the top cover (19) is closed by the outer die, the screw rod (43) is screwed to drive the concrete column (46) to press downwards and tightly prop against the top of the corrugated steel skeleton (11) so as to provide vertical constraint during concrete pouring, after the concrete is solidified, the concrete column (46) and the concrete are integrated, and when the top cover (19) is lifted, the rubber sheet (12) can be separated from the slot (41), so that the vertical pressing mechanism and the top cover (19) are automatically separated.

Description

Rectangular corrugated steel rib and concrete pouring positioning assembly and pipe jacking integral forming equipment Technical Field The invention relates to the technical field of pipeline construction, in particular to a rectangular corrugated steel rib and concrete pouring positioning assembly and pipe jacking integral forming device. Background The pipe jacking construction technology is widely applied to the engineering fields of urban underground pipe network laying, underground passage construction and the like as a non-excavation construction method. The method has the core advantages that the method does not need to excavate the ground in a large area, can effectively reduce the influence on ground traffic, surrounding buildings and underground pipelines, and reduces the disturbance of construction to surrounding environment. In the pipe jacking structure forming process, in order to improve the structural strength, the deformation resistance and the durability of the pipe jacking, a rectangular corrugated steel skeleton is usually arranged in the concrete pouring process, and the integral mechanical property of the pipe jacking after forming is guaranteed through the synergistic effect of the corrugated steel skeleton and concrete. However, in the existing pipe jacking construction, a plurality of defects exist in the positioning link of the rectangular corrugated steel skeleton and concrete pouring: 1. The traditional positioning mode is mainly supported by manual erection or fixed by a simple fixture, because the corrugated steel skeleton has certain flexibility, the inner space of the pipe jacking forming die is limited, the manual positioning operation difficulty is high, positioning deviation is easy to occur, the uneven spacing between the corrugated steel skeleton and the inner die and the outer die is caused, the structural stress stability after concrete pouring is further influenced, local stress concentration can occur in severe cases, and the service life of the pipe jacking is reduced 2. The top pipes of different specifications correspond not unidimensional ripple steel skeleton, and the interval, the size of its trough also have the difference, and current positioner is mostly fixed knot constructs, can't carry out nimble adjustment according to the specification of ripple steel skeleton, need to customize special locating part to different operating modes, has increased construction cost, has reduced the efficiency of construction, and simultaneously, locating component is loaded down with trivial details with respect to the concatenation fixed mode of mould, and the dismouting process is consuming time hard, is unfavorable for realizing the high efficiency of work flow. 3. In addition, buoyancy can be generated during concrete pouring, if effective anti-floating measures are not adopted, the corrugated steel skeleton is easy to vertically displace under the action of buoyancy, so that the position of the corrugated steel skeleton in the jacking pipe deviates, the rationality of structural design is destroyed, and the bearing capacity of the jacking pipe is influenced. 4. The splicing and dismantling operation convenience of the internal mold are insufficient, the existing internal mold is formed by splicing an integral structure or a plurality of scattered templates, the integral internal mold is difficult to disassemble and assemble in a narrow space, the problems of low positioning accuracy and low splicing efficiency exist in the scattered template splicing, interference phenomena between templates are frequently generated, the construction efficiency is further reduced, meanwhile, the stability and the synchronism of an internal mold driving mechanism are poor, clamping or shifting occurs in the template moving process easily, and the internal mold splicing quality is influenced. Disclosure of Invention The invention aims to solve the defects that the existing corrugated steel skeleton is inaccurate in positioning, the corrugated steel skeleton is easy to float upwards, and the splicing and dismantling operation convenience of an inner die is insufficient. In order to achieve the above purpose, the present invention adopts the following technical scheme: Rectangular corrugated steel skeleton and concrete placement locating component includes: an outer mold formed by involution of two semicircular plates; A plurality of semicircular rings which are arranged along the axial direction of the outer die and are slidably sleeved on the outer peripheral wall of the outer die, two semicircular rings with the same height are spliced to form a rotating ring, and The inserting part is arranged on the semicircular ring; The connecting part comprises a top plate, a connecting rod, a pin shaft and a fixed plate, one end of the connecting rod is hinged with the semicircular ring, the other end of the connecting rod is hinged with the fixed plate through the pin shaft, the fixed plate is fi