Quick-release formwork structure of fabricated retaining wall and auxiliary mounting device of quick-release formwork structure

Abstract

The invention relates to a quick-release formwork structure of an assembly type retaining wall and an auxiliary mounting device thereof, and relates to the field of building construction, the quick-release formwork structure comprises a pouring space defined by a bottom formwork, a side formwork and an end formwork, a mounting component on the end formwork is provided with a through hole for a connecting steel bar to penetrate through, and the quick-release formwork structure is further provided with an elastic sealing assembly, an extrusion assembly, a clamping and positioning assembly and an unlocking assembly; the elastic sealing assembly can seal a gap between a reinforcing steel bar and a through hole, the clamping and positioning assembly can fix the reinforcing steel bar, and the unlocking assembly can relieve sealing and fixing; the auxiliary installation device comprises a clamping piece, two clamping parts of the clamping piece are provided with inserting grooves, the side formworks and the end formworks can be fixed, and the clamping parts are provided with fastening bolts to abut against the formworks. The technical effects that pouring of the assembly type retaining wall is facilitated, gaps between the connecting steel bars and the penetrating holes are sealed, the formwork is quickly dismounted, and the formwork is conveniently mounted and fixed are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building construction, in particular to a quick disassembly formwork structure of a fabricated retaining wall and an auxiliary installation device thereof. BACKGROUND

[0002] The core role of the fabricated retaining wall in engineering is to support the side slope soil and stabilize the geological structure to prevent disasters such as landslides and collapses, and to protect the surrounding roads, structures and traffic safety. At the same time, it can flexibly adapt to different geological and working conditions such as mountainous areas and waterfronts, and has the functions of protection and space planning. Its application effect is remarkable: factory standardization prefabrication makes the component quality controllable and high in precision, and on-site assembly does not require a large amount of wet work, greatly shortening the construction period; reduces foundation pit excavation and construction waste, reduces dust and noise pollution, and meets the requirements of green construction; the structure has high integrity and good durability, and the maintenance cost is low in the later period; it can also be integrated with the surrounding landscape through optimization of shape and material, taking into account both practicality and aesthetics, and realizing the unity of engineering safety, efficiency, environmental protection and landscape benefits. In the actual use process, in order to improve the connection strength between the fabricated retaining walls, a connecting steel bar is usually pre-buried on the end face of the retaining wall, and after installation, the pre-buried connecting steel bars of adjacent retaining walls are welded and tied to form a rigid connection. Such a retaining wall is called a fabricated retaining wall with auxiliary components.

[0003] When pouring the fabricated retaining wall with auxiliary components, in order to adapt to the installation of the connecting steel bar, a hole for inserting the connecting steel bar is usually provided on the end face formwork, so that the connecting steel bar extends out of the end face of the retaining wall. In order to avoid hard contact between the connecting steel bar and the formwork, the hole diameter is usually 2-5mm larger than the connecting steel bar diameter. In order to prevent slurry from leaking between the hole and the connecting steel bar during concrete pouring, the gap between the hole and the connecting steel bar needs to be filled with sealing material. However, when the formwork is disassembled, the sealing material filled in the hole needs to be removed one by one before the formwork is disassembled, which results in a long time spent on disassembling the formwork and low disassembly efficiency of the formwork. SUMMARY

[0004] In order to improve the problem of long time spent on disassembling the formwork and low disassembly efficiency of the formwork, the present application provides a quick disassembly formwork structure of a fabricated retaining wall and an auxiliary installation device thereof.

[0005] The quick disassembly formwork structure of a fabricated retaining wall and the auxiliary installation device thereof provided by the present application adopt the following technical solutions: A quick disassembly formwork structure of a fabricated retaining wall, comprising a bottom formwork, a side formwork and an end formwork, the bottom formwork, the side formwork and the end formwork can enclose a pouring space for pouring the fabricated retaining wall with auxiliary components; The end template is provided with a mounting component, the mounting component is provided with a through hole for the connection steel bar of the assembled retaining wall with an auxiliary component, and the mounting component is provided with an elastic sealing assembly, an extrusion assembly, a clamping positioning assembly and an unlocking assembly.

[0006] By adopting the technical scheme, the side template and the end template are sequentially mounted on the bottom template, the connection steel bar is arranged in the through hole, the clamping positioning assembly clamps and fixes the connection steel bar, the connection steel bar is separated from the mounting component, the extrusion assembly extrudes the elastic sealing assembly to seal the gap between the connection steel bar and the through hole, then the retaining wall is poured, the leakage of the slurry is avoided due to the sealing of the elastic sealing assembly, after the retaining wall is solidified, the elastic sealing assembly is released from the expansion state by the unlocking assembly, the clamping and fixing state of the clamping positioning assembly to the connection steel bar is released, the connection steel bar and the end template can be quickly removed, then the end template and the side template are removed, compared with the filling and sealing material in the prior art, the elastic sealing assembly and the unlocking assembly are matched to save the dismounting time of the connection steel bar and the end template and improve the dismounting efficiency of the template.

[0007] Preferably, the elastic sealing assembly comprises an elastic ring, the elastic ring is arranged on the inner hole wall of the through hole, both ends of the elastic ring are fixedly connected with the inner hole wall of the through hole, and the extrusion assembly can extrude the middle part of the elastic ring to expand towards the connection steel bar and abut against the surface of the connection steel bar to seal the gap between the connection steel bar and the through hole.

[0008] By adopting the technical scheme, the elastic ring is arranged on the inner hole wall of the through hole, and the extrusion assembly is matched to expand the middle part of the elastic ring to abut against the connection steel bar, so that the leakage of the concrete slurry from the gap between the connection steel bar and the through hole is effectively avoided, and the sealing state can be quickly released during dismounting to improve the dismounting efficiency of the template.

[0009] Preferably, the extrusion assembly comprises a first piston, the mounting component is provided with a medium cavity filled with an extrusion medium, the elastic ring is in communication with the medium cavity, the first piston is in sliding sealing connection with the medium cavity, and the first piston can drive the elastic ring to expand by extruding the medium.

[0010] By adopting the technical scheme, when the formwork is installed, the first piston is pushed to extrude the extrusion medium in the medium cavity, so that the elastic ring is expanded to tightly abut against the connecting steel bar, the gap between the connecting steel bar and the through hole is sealed, and leakage of the slurry is prevented; when the formwork is disassembled, the extrusion of the first piston on the extrusion medium is released, and the elastic ring returns to the original state, so that the connecting steel bar and the end formwork are conveniently disassembled.

[0011] Preferably, the clamping and positioning assembly comprises a base, a clamping piece and a clamping sleeve, the base is fixedly connected with the first piston, one end of the clamping piece is hingedly connected with the base, the other end of the clamping piece can be overlapped on the connecting steel bar, the clamping sleeve is inserted into the through hole and is threadedly connected with the installation member, the connecting steel bar is arranged in the clamping sleeve, and the clamping sleeve can extrude the clamping piece to enable the end of the clamping piece to tightly and fixedly connect the connecting steel bar and drive the first piston to extrude the elastic ring to expand.

[0012] By adopting the technical scheme, when the clamping sleeve is rotated, the end of the clamping piece can tightly and fixedly connect the connecting steel bar, the connecting steel bar is separated from the installation member, the first piston extrudes the elastic ring to expand to seal the gap between the connecting steel bar and the through hole, the operation is simple during installation, and the sealing and clamping states can be quickly released by cooperating with the unlocking assembly during disassembly, so that the disassembly efficiency of the formwork is improved.

[0013] Preferably, the unlocking assembly comprises a valve, the installation member is provided with a decompression cavity which is communicated with the medium cavity, the decompression cavity and the medium cavity are connected through the valve, and the valve can control the on-off of the decompression cavity and the medium cavity.

[0014] By adopting the technical scheme, when the formwork is disassembled, the on-off of the decompression cavity and the medium cavity can be controlled through the valve, so that the medium in the medium cavity enters the decompression cavity, the end of the clamping piece is released from the tightly and fixedly connected state of the connecting steel bar, the connecting steel bar is separated from the installation member, the expansion state of the elastic ring is released, the sealing of the gap between the connecting steel bar and the through hole is released, the disassembly time of the connecting steel bar and the end formwork is saved, and the disassembly efficiency of the formwork is improved.

[0015] Preferably, the installation member is provided with a second piston, the second piston is arranged in the decompression cavity, the second piston and the first piston are connected through an elastic precompression piece, the elastic precompression piece can store the elastic force of pulling the second piston away from the valve and can drive the second piston to move towards the valve.

[0016] By adopting the technical scheme, when the first piston moves to extrude the medium in the medium cavity, the elastic pre-pressing part converts the movement of the first piston into the elastic force for driving the second piston to move away from the valve, and stores the elastic force in the elastic pre-pressing part; when the valve is opened, the elastic pre-pressing part releases the elastic force, and pulls the second piston to move away from the valve, so that the liquid in the medium cavity is sucked into the decompression cavity, the pressure of the medium applied to the first piston is further reduced, the clamping part is more completely separated from the connecting steel bar, the force of the medium acting on the elastic ring is reduced, the elastic ring is more easily restored, the mounting member is more completely separated from the connecting steel bar, and the end formwork is facilitated to be disassembled from the connecting steel bar.

[0017] Preferably, an intermediate ring is arranged between the clamping sleeve and the base, the intermediate ring is in sliding connection with the mounting member, the clamping sleeve is in rotational connection with the intermediate ring and can pull the intermediate ring to move away from the base, a pull rod is arranged on the intermediate ring and slides through the base, and a stopper is arranged on one end of the pull rod penetrating through the base and can drive the base to slide.

[0018] By adopting the technical scheme, when new retaining wall pouring is performed, the clamping sleeve is rotated to pull the intermediate ring to move away from the base, the intermediate ring drives the pull rod and the stopper to move, the stopper drives the base to slide, the base drives the first piston to reset, the first piston drives the second piston to push the medium into the medium cavity and reset through the elastic pre-pressing part, and the first piston resets the elastic ring at the same time, so that the formwork structure can repeatedly operate the connecting steel bar, and the convenience of use of the formwork structure is improved.

[0019] Preferably, a control cavity in communication with the medium cavity is arranged on the mounting member, a third piston is in sliding and sealing connection in the control cavity, the third piston is connected with the mounting member through a first extension spring, the first extension spring can apply a movement pressure threshold to the third piston, a plugging part is arranged on the mounting member in sliding mode, and the plugging part is connected with the third piston, so that when the pressure of the medium applied to the third piston exceeds the movement pressure threshold, the third piston can drive the plugging part to plug the medium cavity.

[0020] By adopting the technical scheme, in the process that the extrusion assembly extrudes the elastic sealing assembly to expand the sealing connection between the steel bar and the perforation gap, when the pressure of the medium in the medium cavity exceeds the movement pressure threshold applied to the third piston by the first extension spring, the third piston drives the plugging part to plug the medium cavity, so that damage of the elastic ring caused by excessively high medium pressure is avoided, the elastic ring normally plays a sealing role, and the stability and reliability of the whole quick-disassembly formwork structure are improved.

[0021] The utility model provides a kind of auxiliary installation device of quick-release formwork structure of fabricated retaining wall, using the quick-release formwork structure of fabricated retaining wall, including the clamping piece being arranged at the connecting place of the side formwork and the end formwork, the clamping piece includes two clamping parts, plug-in slot is set on each clamping part, two plug-in slots are respectively matched with the side formwork and the end formwork, to be able to fix the side formwork with the end formwork.

[0022] By using the plug-in slot of the two clamping parts of the clamping piece to match with the side formwork and the end formwork, the temporary fixing of the side formwork and the end formwork at the connecting place can be quickly completed, the stability of the installation of the end formwork and the side formwork is improved, after the installation of the end formwork and the side formwork is completed, the clamping piece is pulled to make the plug-in slot disengage from the end formwork and the side formwork, the convenience of disassembly of the temporary fixing structure of the end formwork and the side formwork is improved.

[0023] Preferably, a fastening bolt is threadedly inserted into each clamping part, an adjusting plate is slidably arranged in the plug-in slot, the adjusting plate and the side wall of the plug-in slot form a plug-in space for the insertion of the end formwork and the side formwork, and the fastening bolt is rotationally connected with the adjusting plate to adjust the width of the plug-in space. By using the above technical scheme, the size of the plug-in space can be adjusted by rotating the fastening bolt, and the temporary installation and fixing of end formworks and side formworks of different thicknesses can be sequentially adapted, thereby improving the application range of the auxiliary installation device.

[0024] In summary, the present application has at least one of the following beneficial technical effects: 1. When installing the formwork of the retaining wall, the side formwork and the end formwork can be sequentially installed, the connecting steel bars are arranged, the connecting steel bars are fixed by the clamping and positioning assembly, the connecting steel bars are disengaged from the installation member, the gap is sealed by the extrusion assembly after the elastic sealing assembly is expanded, and then pouring is performed, which can prevent slurry leakage; after the retaining wall is solidified, the elastic sealing assembly is expanded and the clamping and positioning assembly is fixed on the connecting steel bars by using the unlocking assembly, the connecting steel bars and the end formwork can be quickly removed, and finally the end formwork and the side formwork are removed, which avoids the complicated operation of filling and sealing materials, and improves the installation and disassembly efficiency of the formwork; 2. When disassembling the formwork, the valve is used to control the on-off between the pressure relief cavity and the medium cavity, so that the medium in the medium cavity enters the pressure relief cavity, the clamping end of the clamping piece is disengaged from the connecting steel bars, the elastic ring is disengaged from the expanded state, and the sealing of the connecting steel bars and the perforated gap is disengaged, thereby saving the disassembly time of the connecting steel bars and the end formwork, and improving the disassembly efficiency of the formwork; 3. When a new retaining wall is cast, the clamping sleeve is rotated to pull the middle ring away from the base, the middle ring drives the pull rod and the block to move, the block drives the base to slide, the base drives the first piston to reset, the first piston drives the second piston through the elastic pre-pressing piece to push the medium into the medium cavity, and the first piston resets at the same time, the elastic ring is reset, so that the formwork structure can be repeatedly operated on the connecting steel bar, and the convenience of the formwork structure is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of a quick-release formwork structure of an assembled retaining wall according to an embodiment of the present application.

[0026] Figure 2 is a structural schematic diagram of a mounting sleeve.

[0027] Figure 3 is a top view of the mounting sleeve.

[0028] Figure 4 is a sectional view along the A-A line of the mounting sleeve. Figure 3

[0029] Figure 5 is an enlarged view of the B part of the mounting sleeve. Figure 4

[0030] Figure 6 is an enlarged view of the C part of the mounting sleeve. Figure 4

[0031] Figure 7 is a structural schematic diagram of an auxiliary mounting device of a quick-release formwork structure of an assembled retaining wall according to an embodiment of the present application.

[0032] Figure 8 is an enlarged view of the D part of the auxiliary mounting device. Figure 7

[0033] Figure 9 is a structural schematic diagram of a clamping piece.

[0034] ​​​​Explanation of reference signs: 1, bottom mold; 11, pouring space; 2, side mold plate; 3, end mold plate; 4, connecting steel bar; 5, mounting component; 51, mounting sleeve; 52, medium cavity; 521, first cavity; 522, second cavity; 523, third cavity; 524, fourth cavity; 53, through hole; 6, elastic sealing assembly; 61, elastic ring; 7, extrusion assembly; 71, first piston; 73, control cavity; 74, third piston; 75, first extension spring; 76, spring base; 77, plugging piece; 771, valve plate; 7711, communication hole; 7712, plugging section; 772, connecting rod; 8, clamping positioning assembly; 81, base; 82, clamping piece; 821, clamping rod; 822, clamping plate; 823, intermediate ring; 824, T-shaped ring part; 825, T-shaped ring groove; 826, pull rod; 827, stop block; 83, clamping sleeve; 84, strip-shaped hole; 85, support rod; 9, unlocking assembly; 91, valve; 911, electromagnetic valve; 92, decompression pipe; 93, decompression cavity; 94, second piston; 95, elastic pre-pressing piece; 951, first pre-pressing rod; 952, second pre-pressing rod; 953, second extension spring; 954, blocking part; 955, limiting part; 956, spring cylinder; 10, clamping piece; 101, clamping part; 102, plug-in groove; 103, adjusting plate; 104, fastening bolt; 105, guide rod; 106, plug-in space. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be further described below with reference to the accompanying drawings. Figures 1-9 The embodiments described are only possible technical implementations of the present application, but the present application is not limited to this. Those skilled in the art can combine the embodiments of the present application without creative labor to obtain other embodiments within the protection scope of the present application.

[0036] The present application mainly adopts the scheme that the elastic sealing assembly 6 cooperates with the unlocking assembly 9, so as to save the mold plate dismounting time and improve the dismounting efficiency. The present application will be further described in detail as follows.

[0037] Embodiment 1 With reference to Figure 1 The quick dismounting mold plate structure of the fabricated retaining wall comprises a bottom mold 1, a side mold plate 2 and an end mold plate 3. The number of the side mold plate 2 and the end mold plate 3 in the present embodiment is both two. The two side mold plates 2 and the two end mold plates 3 are oppositely arranged. The end mold plate 3 and the side mold plate 2 can be tightly installed on the bottom mold 1 by using a hydraulic device. The side mold plate 2 and the end mold plate 3 are connected and fixed by an ear plate and a bolt, and a rectangular pouring space 11 is formed therebetween. Since the mold plate structure in the present embodiment is used for pouring the fabricated retaining wall with auxiliary components, the connecting steel bars 4 (with reference to the accompanying drawings) embedded at both ends of the retaining wall pass through the end mold plate 3. Figure 4 ​

[0038] Referring to Figure 1 , Figure 2 , each end template 3 is inserted with a mounting member 5 corresponding to the connecting steel bar 4, the mounting member 5 in the embodiment is a mounting sleeve 51, the mounting sleeve 51 is a variable-diameter rotary body structure composed of two sections of large-diameter section and small-diameter section, the mounting sleeve 51 in the embodiment is threadedly connected with the end template 3, facilitating the disassembly and maintenance of the mounting sleeve 51, and the small-diameter section of the mounting sleeve 51 is threadedly inserted into the end template 3.

[0039] Referring to Figure 3 , Figure 4 , a through hole 53 is formed in the mounting sleeve 51 for the connecting steel bar 4 to pass through, so that the connecting steel bar 4 can pass through the end template 3. Since the mounting sleeve 51 is a variable-diameter structure, the through hole 53 also includes a small hole section corresponding to the small-diameter section of the mounting sleeve 51 and a large hole section corresponding to the large-diameter section of the mounting sleeve 51, in order to adapt to the passing of the connecting steel bar 4, the diameter of the small hole section of the through hole 53 in the embodiment is selected to be 5mm larger than the diameter of the connecting steel bar 4.

[0040] Referring to Figure 3 , Figure 4 , the mounting sleeve 51 is provided with an elastic sealing assembly 6, a pressing assembly 7, a clamping and positioning assembly 8, and an unlocking assembly 9, the elastic sealing assembly 6 is arranged in a circle along the circumference of the small hole section of the through hole 53, the pressing assembly 7 is connected with the elastic sealing assembly 6 and presses the elastic sealing assembly 6 to expand, so as to seal the gap between the connecting steel bar 4 and the small hole section of the through hole 53, the clamping and positioning assembly 8 can clamp and fix the connecting steel bar 4, so that the connecting steel bar 4 is separated from the mounting sleeve 51, and the unlocking assembly 9 can release the expansion of the elastic sealing assembly 6 and the clamping and fixing of the clamping and positioning assembly 8 on the connecting steel bar 4.

[0041] When assembling the template of the fabricated retaining wall, the end template 3 and the side template 2 are combined and installed on the bottom template 1, the connecting steel bar 4 is passed through the through hole 53 in the corresponding mounting sleeve 51, and the clamping and positioning assembly 8 is used to clamp and fix the connecting steel bar 4, so that the connecting steel bar 4 and the mounting sleeve 51 are in a non-contact and separated state, avoiding hard contact between the connecting steel bar 4 and the mounting sleeve 51, the gap between the connecting steel bar 4 and the through hole 53 is sealed by the elastic sealing assembly 6 pressed by the pressing assembly 7, then the retaining wall is poured, due to the sealing of the elastic sealing assembly 6, the leakage of the slurry can be avoided, after the retaining wall is solidified, the expansion state of the elastic sealing assembly 6 is released by the unlocking assembly 9, and the clamping and fixing state of the clamping and positioning assembly 8 on the connecting steel bar 4 is released, the connecting steel bar 4 and the end template 3 can be quickly removed, and then the end template 3 and the side template 2 are removed, saving the disassembly time of the connecting steel bar 4 and the end template 3, and improving the disassembly efficiency of the template.

[0042] Reference Figure 3 , Figure 4 The mounting sleeve 51 has a medium cavity 52 inside its cylindrical wall. The medium cavity 52 is filled with a medium, which in this embodiment is hydraulic oil. The medium cavity 52 is filled with hydraulic oil. The medium cavity 52 includes a first cavity 521, a second cavity 522, a third cavity 523, and a fourth cavity 524 arranged sequentially along the axial direction of the mounting sleeve 51. There are three first cavities 521, which are evenly arranged along the circumference of the mounting sleeve 51. The second cavities 522 are arranged in a circle along the circumference of the mounting sleeve 51, connecting the three first cavities 521 to each other. The third cavity 523 connects the second cavity 522 and the fourth cavity 524. The fourth cavity 524 is located in the small diameter section of the mounting sleeve 51 and is arranged in a circle along the circumference of the mounting sleeve 51.

[0043] Reference Figure 4 In this embodiment, the elastic sealing component 6 includes an elastic ring 61 made of rubber. The elastic ring 61 is fixedly connected to the mounting sleeve 51 and is located between the fourth cavity 524 and the perforation 53, thus isolating the fourth cavity 524 from the perforation 53. In this embodiment, the extrusion component 7 includes a first piston 71, which corresponds one-to-one with the first cavity 521 and is inserted into the first cavity 521. The first piston 71 and the first cavity 521 are slidably sealed together. By applying extrusion force towards the end template 3 to the first piston 71, the medium transmits the extrusion force to the elastic ring 61. As the extrusion force of the first piston 71 increases, the elastic ring 61 expands towards the connecting reinforcing bar 4 and finally abuts against the surface of the connecting reinforcing bar 4, sealing the gap between the connecting reinforcing bar 4 and the perforation 53 to prevent concrete slurry from flowing out.

[0044] Reference Figure 5 , Figure 3The control cavity 73 is communicated with the third cavity 523 of the medium cavity 52, and the third piston 74 is arranged in the control cavity 73 and is in sliding sealing connection with the control cavity 73. The first telescopic spring 75 is arranged on the side of the third piston 74 away from the medium cavity 52. The spring base 76 is fixedly arranged at the outlet of the control cavity 73, and one end of the first telescopic spring 75 is in abutment with the spring base 76 and the other end is in abutment with the third piston 74. The mounting sleeve 51 is provided with a plugging piece 77, which comprises a valve plate 771 and a connecting rod 772. The valve plate 771 is slidingly inserted into the mounting sleeve 51 along the circumference of the mounting sleeve 51 and is located below the control cavity 73. The valve plate 771 is provided with a communication hole 7711 and a plugging section 7712. When the communication hole 7711 is slidingly arranged in the third cavity 523, the third cavity 523 is in a conductive state. When the plugging section 7712 is completely slidingly arranged in the third cavity 523, the third cavity 523 is in a disconnected state. The connecting rod 772 is an L-shaped rod. One end of the connecting rod 772 is fixedly connected with the third piston 74 and slidingly passes through the spring base 76 and the first telescopic spring 75, and the other end is fixedly connected with the valve plate 771, so that the third piston 74 can drive the valve plate 771 to slide through the connecting rod 772 to change the on-off state of the third cavity 523. Initially, the first telescopic spring 75 is in a contracted state and applies a moving pressure threshold to the third piston 74 towards the medium cavity 52.

[0045] When the elastic ring 61 is in abutment with the connecting steel bar 4, continuing to move the first piston 71 towards the end formwork 3 will further intensify the expansion of the elastic ring 61. At this time, the pressure applied by the medium to the third piston 74 gradually increases. When the pressure applied by the medium to the third piston 74 is greater than the moving pressure threshold, the third piston 74 starts to gradually move away from the medium cavity 52. The third piston 74 drives the valve plate 771 to move through the connecting rod 772. The communication hole 7711 slides out of the third cavity 523, the plugging section 7712 slides into the third cavity 523, so that the third cavity 523 is in a disconnected state. Thereafter, the pressure is continuously applied to the first piston 71. Since the third cavity 523 is in a disconnected state, the medium pressure cannot be transmitted to the elastic ring 61, so that damage of the elastic ring 61 caused by the high medium pressure can be avoided, the sealing function of the elastic ring 61 is ensured, and the stability and reliability of the whole quick-release formwork structure are improved.

[0046] Referring to Figure 5 , Figure 4The clamping positioning assembly 8 in the embodiment comprises a base 81, clamping pieces 82 and a clamping sleeve 83. A strip-shaped hole 84 is formed in the outer sidewall of the mounting sleeve 51 and is in communication with the large hole section of the through hole 53. The strip-shaped hole 84 is arranged along the axial direction of the mounting sleeve 51 and is in one-to-one correspondence with and in communication with the first cavities 521. The strip-shaped hole 84 is located on the side of the first piston 71 away from the hydraulic oil. The base 81 is annular in structure and is slidingly arranged on the hole wall of the through hole 53. The base 81 is fixedly connected with the three first pistons 71 through three supporting rods 85. One end of each supporting rod 85 is fixedly connected with the first piston 71, and the other end of each supporting rod 85 passes through the strip-shaped hole 84 and is fixedly connected with the base 81, so that the first piston 71 and the base 81 move axially synchronously.

[0047] With reference to Figure 6 , Figure 4 The three groups of clamping pieces 82 are uniformly arranged along the circumferential direction of the mounting sleeve 51. Each group of clamping pieces 82 comprises a clamping rod 821 and a clamping plate 822. One end of the clamping rod 821 is hingedly connected with the base 81, so that the clamping rod 821 can rotate towards or away from the connecting steel bar 4. The clamping plate 822 is fixedly arranged at the other end of the clamping rod 821. The clamping rod 821 contacts the connecting steel bar 4 through the clamping plate 822 and is arranged obliquely towards the connecting steel bar 4 along the direction away from the end formwork 3. The clamping sleeve 83 is inserted into the large hole section of the through hole 53 and is bolted with the mounting sleeve 51. The radial thickness of the clamping sleeve 83 is greater than the distance between the hinged point of the clamping rod 821 and the hole wall of the adjacent through hole 53, so that the clamping sleeve 83 can press the clamping rod 821 to rotate towards the connecting steel bar 4.

[0048] With reference to Figure 6 , Figure 4 A middle ring 823 is arranged between the clamping sleeve 83 and the base 81. The middle ring 823 is slidingly connected with the hole wall of the through hole 53. A T-shaped ring groove 825 is formed in the clamping sleeve 83, and a T-shaped ring portion 824 is fixedly arranged on the middle ring 823. The T-shaped ring portion 824 is inserted into the T-shaped ring groove 825 and is slidingly connected, so that the clamping sleeve 83 and the middle ring 823 can rotate relative to each other, and the clamping sleeve 83 and the middle ring 823 can move axially synchronously. A pull rod 826 is arranged on the side of the middle ring 823 away from the base 81. The pull rod 826 is arranged along the axial direction of the mounting sleeve 51 and is slidingly arranged through the base 81. A stop block 827 is fixedly arranged on one end of the pull rod 826, so that the middle ring 823 moves away from the end formwork 3 by pulling the base 81 through the pull rod 826 and the stop block 827.

[0049] With reference to Figure 5 , Figure 4The unlocking assembly 9 is provided with a relief pipe 92 fixed on the mounting sleeve 51. The relief pipe 92 is arranged along the axial direction of the mounting sleeve 51. The relief pipe 92 is internally provided with a relief cavity 93 in communication with the third cavity 523. The relief pipe 92 is arranged above the control cavity 73. The unlocking assembly 9 in the embodiment comprises a valve 91. The valve 91 in the embodiment is an electromagnetic valve 911. The electromagnetic valve 911 is arranged on the relief pipe 92 and extends into the relief cavity 93. The electromagnetic valve 911 controls the opening and closing of the relief cavity 93 and the third cavity 523. The relief pipe 92 is provided with a second piston 94 in the relief cavity 93. The second piston 94 is in sliding sealing connection with the relief cavity 93 and is arranged on the side of the electromagnetic valve 911 away from the third cavity 523. The second piston 94 is connected with the first piston 71 through an elastic pre-pressing piece 95.

[0050] With reference to Figure 5 , Figure 7 The elastic pre-pressing piece 95 in the embodiment comprises a first pre-pressing rod 951, a second pre-pressing rod 952 and a second extension spring 953. The first pre-pressing rod 951 is an L-shaped rod. The second pre-pressing rod 952 is a U-shaped rod. One end of the first pre-pressing rod 951 is fixedly connected with the support rod 85. The other end of the first pre-pressing rod 951 is fixedly provided with a spring barrel 956 arranged along the axial direction of the mounting sleeve 51. One end of the second pre-pressing rod 952 is fixedly connected with the side of the second piston 94 away from the electromagnetic valve 911. The other end of the second pre-pressing rod 952 is inserted into the spring barrel 956. The opening of the spring barrel 956 extends towards the middle to form a blocking portion 954. The other end of the second pre-pressing rod 952 is outwardly protruded to form a limiting portion 955. The second extension spring 953 is arranged between the limiting portion 955 and the inner bottom wall of the spring barrel 956. One end of the second extension spring 953 is in abutment with the limiting portion 955. The other end of the second extension spring 953 is in abutment with the spring barrel 956. Initially, the limiting portion 955 is in abutment with the blocking portion 954. The second extension spring 953 is in a compressed state.

[0051] When the connecting steel bars 4 are installed and fixed to the end mold plate 3, the connecting steel bars 4 are arranged in the through holes 53 and the clamping sleeves 83 and between the three clamping plates 822, and then the clamping sleeves 83 are moved towards the end mold plate 3, in the process of moving, the clamping sleeves 83 can extrude the clamping rods 821 so that the clamping plates 822 abut against the connecting steel bars 4, and can also apply extrusion force to the first pistons 71 through the bases 81 towards the end mold plate 3, the first pistons 71 transmit the extrusion force applied by the clamping sleeves 83 to the elastic rings 61 through the medium, so that the elastic rings 61 expand towards the connecting steel bars 4 and seal the gap between the connecting steel bars 4 and the through holes 53. In the process of moving the first pistons 71 to drive the elastic rings 61 to expand, since the decompression cavity 93 between the second pistons 94 and the electromagnetic valves 911 is a closed space, the first pistons 71 drive the first pre-pressing rods 951 to move towards the end mold plate 3 and extrude the second extension springs 953 to contract, the second pre-pressing rods 952 remain stationary, and the second extension springs 953 store the elastic force for driving the second pre-pressing rods 952 to move the second pistons 94 away from the electromagnetic valves 911.

[0052] With the increasing extrusion force applied by the clamping sleeves 83 to the first pistons 71, the third cavity 523 changes from the connected state to the disconnected state, since the hydraulic oil is incompressible, the first pistons 71 are in a stable state at this time, and the clamping sleeves 83 continue to increase the extrusion force applied to the clamping rods 821, the clamping rods 821 clamp and fix the connecting steel bars 4 through the clamping plates 822, and the connecting steel bars 4 are clamped and fixed by the three clamping rods 821, so that the connecting steel bars 4 are automatically located at the center position of the through holes 53, thereby facilitating the disengagement of the connecting steel bars 4 and the mounting sleeves 51 in the non-contact state, and facilitating the disengagement of the mounting sleeves 51 and the connecting steel bars 4.

[0053] Through the extrusion of the clamping sleeves 83 to the clamping rods 821, the clamping plates 822 can clamp and fix the connecting steel bars 4, the connecting steel bars 4 are fixedly connected with the mounting sleeves 51, and the first pistons 71 can extrude the elastic rings 61 to expand to seal the gap between the connecting steel bars 4 and the through holes 53, thereby simplifying the installation steps of the connecting steel bars 4 and improving the convenience of installing the connecting steel bars 4 to the end mold plate 3.

[0054] In the process of disassembling the end template 3, the operator can control the electromagnetic valve 911 to be in an open state at the same time, the second telescopic spring 953 applies a pulling force to the second piston 94 through the second pre-pressure rod 952, the second piston 94 can suck the hydraulic oil in the third cavity 523 into the decompression cavity 93 through the electromagnetic valve 911, so that the pressure of the hydraulic oil in the medium cavity 52 is released, at this time the supporting force of the hydraulic oil applied to the first piston 71 disappears, so that the first piston 71 is in a loose state, and then the clamping rod 821 is in a loose state, so that the clamping plate 822 is in a fixed state of the connecting steel bar 4, when the pressure of the hydraulic oil in the third cavity 523 is released, the third cavity 523 is in a communication state, the extrusion force of the hydraulic oil applied to the elastic ring 61 disappears, so that the elastic ring 61 returns to normal, the elastic ring 61 is in a state of tightly pressing the connecting steel bar 4, and the disassembly of the connecting steel bar 4 and the mounting sleeve 51 is completed, in this process, the electromagnetic valve 911 can control the on-off between the decompression cavity 93 and the medium cavity 52, so that the medium in the medium cavity 52 enters the decompression cavity 93, which can not only release the clamping and fixing of the clamping plate 822 to the connecting steel bar 4, so that the connecting steel bar 4 is separated from the mounting sleeve 51, but also release the expansion state of the elastic ring 61, so that the gap between the connecting steel bar 4 and the through hole 53 is sealed, thereby saving the disassembly time of the connecting steel bar 4 and the end template 3, and improving the disassembly efficiency of the template.

[0055] The hydraulic oil is sucked into the decompression cavity 93 through the second piston 94, the pressure of the hydraulic oil applied to the first piston 71 is further reduced, the clamping plate 822 is more thoroughly separated from the connecting steel bar 4, and the force of the hydraulic oil acting on the elastic ring 61 is reduced, so that the elastic ring 61 is more easily restored, and the mounting sleeve 51 is more thoroughly separated from the connecting steel bar 4, thereby facilitating the disassembly of the end template 3 and the connecting steel bar 4.

[0056] The electromagnetic valve 911 can be connected in series through wires, so that workers can control multiple electromagnetic valves 911 at the same time to control the disassembly of multiple connecting steel bars 4 and end templates 3 at the same time, thereby improving the convenience and efficiency of template disassembly.

[0057] When the connecting steel bar 4 and the end template 3 are installed again, the clamping sleeve 83 is first rotated in the reverse direction, the clamping sleeve 83 is rotated out of the mounting sleeve 51 while pulling the intermediate ring 823 away from the base 81, the intermediate ring 823 drives the pull rod 826 and the stop block 827 to move, the stop block 827 drives the base 81 to slide, the base 81 drives the first piston 71 to reset, the first piston 71 drives the second piston 94 to push the hydraulic oil into the medium cavity 52 through the first pre-pressure rod 951 and the second pre-pressure rod 952, and resets, the first piston 71 resets at the same time, and the elastic ring 61 resets, so that the template structure can be repeatedly operated on the connecting steel bar 4, and the convenience of using the template structure is improved.

[0058] The implementation principle of the embodiment 1 of the application is that when the connecting steel bar 4 and the end formwork 3 are installed and fixed, the connecting steel bar 4 is arranged in the through hole 53 and the clamping sleeve 83 and located between the three clamping plates 822, then the clamping sleeve 83 is rotated and moved towards the end formwork 3, in the process of moving, the clamping sleeve 83 can extrude the clamping rod 821, so that the clamping plate 822 abuts against the connecting steel bar 4, and can also apply extrusion force to the first piston 71 towards the end formwork 3 through the base 81, the first piston 71 transmits the extrusion force applied by the clamping sleeve 83 to the elastic ring 61 through the medium, so that the elastic ring 61 expands towards the connecting steel bar 4, seals the gap between the connecting steel bar 4 and the through hole 53, and the clamping sleeve 83 extrudes the clamping rod 821, so that the clamping plate 822 clamps and fixes the connecting steel bar 4.

[0059] In the process of disassembling the end formwork 3, the operator can control the electromagnetic valve 911 to be in an open state at the same time, the second telescopic spring 953 applies tension to the second piston 94 through the second pre-pressing rod 952, the second piston 94 can suck the hydraulic oil in the third cavity 523 into the decompression cavity 93 through the electromagnetic valve 911, so that the pressure of the hydraulic oil in the medium cavity 52 is released, so that the first piston 71 is in a loose state, and then the clamping rod 821 is in a loose state, the fixing state of the clamping plate 822 to the connecting steel bar 4 is released, the extrusion force of the hydraulic oil applied to the elastic ring 61 disappears, so that the elastic ring 61 restores, the abutting state of the elastic ring 61 to the connecting steel bar 4 is released, and the disassembly of the connecting steel bar 4 and the installation sleeve 51 is completed. Through the above scheme, the connecting steel bar 4 and the end formwork 3 can be quickly disassembled, finally the end formwork 3 and the side formwork 2 are disassembled, the cumbersome operation of the filling sealing material mode is avoided, and the installation and disassembly efficiency of the formwork is improved.

[0060] Embodiment 2 With reference to Figure 8 , Figure 7, in order to the installation of template structure in the embodiment 1, this embodiment provides a kind of auxiliary installation device of quick-release template structure of prefabricated retaining wall, including clamping piece 10, the number of clamping piece 10 is four, four clamping piece 10 is respectively arranged at the four connecting places of side template 2 and end template 3, the clamping piece 10 in the embodiment includes two mutually perpendicular clamping parts 101, each clamping part 101 is in plate structure, each clamping part 101 is also provided with insertion slot 102, the direction of two insertion slots 102 is perpendicular to each other, when installing side template 2 and end template 3, side template 2 and end template 3 need to be temporarily fixed, when end template 3 and side template 2 state adjustment are completed, clamping piece 10 is installed from top to bottom on end template 3 and side template 2, end template 3 and side template 2 are inserted into two insertion slots 102 respectively, and the temporary fixing of end template 3 and side template 2 is completed.When side template 2 and end template 3 are installed and fixed, clamping piece 10 is lifted and separated from end template 3 and side template 2, and the removal of temporary fixing structure is completed, so as to improve the convenience of temporary installation of end template 3 and side template 2.

[0061] Referring to Figure 9 、 ​ , in order to improve the adaptability of insertion slot 102, adjusting plate 103 is slidably arranged in insertion slot 102, fastening bolt 104 and guide rod 105 are inserted into the side of clamping part 101, guide rod 105 and fastening bolt 104 are arranged along the sliding direction of adjusting plate 103, guide rod 105 is slidably arranged with clamping part 101 and is fixedly connected with adjusting plate 103, fastening bolt 104 is threadedly connected with clamping part 101 and is rotatably connected with adjusting plate 103, and the insertion space 106 for the insertion of end template 3 and side template 2 is formed between adjusting plate 102 and the side wall of insertion slot 102, the size of insertion space 106 can be adjusted by rotating fastening bolt 104, in turn to adapt to the temporary installation and fixation of end template 3 and side template 2 of different thickness, and the application range of auxiliary installation device is improved.

[0062] The above are preferred embodiments of the present application, not limited to the protection scope of the present application, therefore: equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A quick-release formwork structure for an assembled retaining wall, characterized by: The bottom die (1), side die plate (2), end die plate (3) can form a pouring space (11) for pouring the assembled retaining wall with auxiliary components; The end die plate (3) is inserted with a mounting component (5), the mounting component (5) is provided with a through hole (53) for the connecting steel bars (4) of the assembled retaining wall with auxiliary components, the mounting component (5) is provided with an elastic sealing assembly (6), an extrusion assembly (7), a clamping positioning assembly (8), and an unlocking assembly (9), the elastic sealing assembly (6) is arranged along the circumference of the through hole (53), the extrusion assembly (7) is connected with the elastic sealing assembly (6) and can extrude the elastic sealing assembly (6) to expand, so as to seal the gap between the connecting steel bars (4) and the through hole (53), the clamping positioning assembly (8) can clamp and fix the connecting steel bars (4) to make the connecting steel bars (4) separate from the mounting component (5), and the unlocking assembly (9) can release the expansion of the elastic sealing assembly (6) and the clamping and fixing of the clamping positioning assembly (8) to the connecting steel bars (4).

2. The quick-release formwork structure of the fabricated retaining wall according to claim 1, wherein: The elastic sealing assembly (6) comprises an elastic ring (61) arranged on the inner hole wall of the through hole (53), both ends of the elastic ring (61) are fixedly connected with the inner hole wall of the through hole (53), and the extrusion assembly (7) can extrude the middle part of the elastic ring (61) to expand towards the connecting steel bars (4) and abut against the surface of the connecting steel bars (4) to form a seal between the connecting steel bars (4) and the through hole (53).

3. The quick-release formwork structure of the fabricated retaining wall according to claim 2, wherein: The extrusion assembly (7) comprises a first piston (71), the mounting component (5) is provided with a medium cavity (52) filled with an extrusion medium, the elastic ring (61) is in communication with the medium cavity (52), and the first piston (71) is in sliding sealing connection with the medium cavity (52), so that the first piston (71) can drive the elastic ring (61) to expand through the extrusion medium.

4. The quick-release formwork structure of the fabricated retaining wall according to claim 3, wherein: The clamping positioning assembly (8) comprises a base (81), a clamping piece (82), and a clamping sleeve (83), the base (81) is fixedly connected with the first piston (71), one end of the clamping piece (82) is hinged to the base (81), the other end can be lapped on the connecting steel bars (4), the clamping sleeve (83) is inserted into the through hole (53) and is in threaded connection with the mounting component (5), the connecting steel bars (4) are arranged in the clamping sleeve (83), and the clamping sleeve (83) can extrude the clamping piece (82) to clamp and fix the end of the clamping piece (82) to the connecting steel bars (4) and drive the first piston (71) to extrude the elastic ring (61) to expand.

5. The quick-release formwork structure of the fabricated retaining wall according to claim 3, wherein: The unlocking assembly (9) comprises a valve (91), the mounting member (5) is provided with a decompression cavity (93) communicated with the medium cavity (52), the decompression cavity (93) and the medium cavity (52) are connected through the valve (91), and the valve (91) can control the on-off between the decompression cavity (93) and the medium cavity (52).

6. The quick-release formwork structure of the assembled retaining wall according to claim 5, wherein: The mounting member (5) is provided with a second piston (94), the second piston (94) is arranged in the decompression cavity (93), the second piston (94) and the first piston (71) are connected through an elastic preloading member (95), the elastic preloading member (95) can store the elastic force of pulling the second piston (94) away from the valve (91), and can drive the second piston (94) to move towards the valve (91).

7. The quick-release formwork structure of the fabricated retaining wall according to claim 4, wherein: The clamping sleeve (83) and the base (81) are provided with an intermediate ring (823), the intermediate ring (823) is in sliding connection with the mounting member (5), the clamping sleeve (83) is in rotary connection with the intermediate ring (823), and the intermediate ring (823) can be pulled away from the base (81), the intermediate ring (823) is provided with a pull rod (826), the pull rod (826) is slidably arranged on the base (81), and one end of the pull rod (826) penetrating through the base (81) is provided with a stop block (827), the stop block (827) can drive the base (81) to slide.

8. The quick-release formwork structure of the fabricated retaining wall according to claim 3, wherein: The mounting member (5) is provided with a control cavity (73) communicated with the medium cavity (52) and externally connected, a third piston (74) is in sliding sealing connection in the control cavity (73), the third piston (74) and the mounting member (5) are connected through a first telescopic spring (75), the first telescopic spring (75) can exert a movement pressure threshold value to the third piston (74), the mounting member (5) is provided with a blocking member (77) in sliding connection, the blocking member (77) is connected with the third piston (74), when the pressure of the medium applied to the third piston (74) exceeds the movement pressure threshold value, the third piston (74) can drive the blocking member (77) to block the medium cavity (52).

9. An auxiliary installation device for the quick-release formwork structure of the assembled retaining wall, using the quick-release formwork structure of the assembled retaining wall according to any one of claims 1-8, characterized in that: The clamping sleeve (83) and the base (81) are provided with an intermediate ring (823), the intermediate ring (823) is in sliding connection with the mounting member (5), the clamping sleeve (83) is in rotary connection with the intermediate ring (823), and the intermediate ring (823) can be pulled away from the base (81), the intermediate ring (823) is provided with a pull rod (826), the pull rod (826) is slidably arranged on the base (81), and one end of the pull rod (826) penetrating through the base (81) is provided with a stop block (827), the stop block (827) can drive the base (81) to slide. The mounting member (5) is provided with a control cavity (73) communicated with the medium cavity (52) and externally connected, a third piston (74) is in sliding sealing connection in the control cavity (73), the third piston (74) and the mounting member (5) are connected through a first telescopic spring (75), the first telescopic spring (75) can exert a movement pressure threshold value to the third piston (74), the mounting member (5) is provided with a blocking member (77) in sliding connection, the blocking member (77) is connected with the third piston (74), when the pressure of the medium applied to the third piston (74) exceeds the movement pressure threshold value, the third piston (74) can drive the blocking member (77) to block the medium cavity (52).

10. The auxiliary mounting device of the quick-release formwork structure of the assembled retaining wall according to claim 9, characterized in that: A fastening bolt (104) is threadedly inserted in each clamping part (101), an adjusting plate (103) is slidably arranged in the insertion slot (102), the adjusting plate (103) and the side wall of the insertion slot (102) form an insertion space (106) for inserting the end mold plate (3) and the side mold plate (2), and the fastening bolt (104) is rotationally connected with the adjusting plate (103) so as to adjust the width of the insertion space (106).

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