A quick dismounting mechanism for formwork of steel pipe and steel slag concrete construction

Abstract

This invention relates to the technical field of concrete formwork assembly and disassembly mechanisms, specifically a rapid assembly and disassembly mechanism for steel pipe and steel slag concrete construction. It includes a formwork body with a fixed base and an auxiliary mechanism. A first insertion seat is installed on one side of the formwork body, and a second insertion seat is installed on the other side. The auxiliary mechanism includes a threaded rod that rotates inside the fixed base. One end of the threaded rod passes through the formwork body and is connected to an extrusion plate. The purpose of this invention is to provide a mechanism that uses an extrusion plate to push a first spring, thereby moving the extrusion plate to extrude the formed concrete. Simultaneously, as the extrusion plate moves in the first groove, the release fluid added through the feeding pipe is sprayed out through two sets of water spray pipes, further improving the quality of the formed concrete and preventing the formwork body from sticking to the concrete during demolding, which would result in an uneven concrete surface and affect the overall quality of the concrete.

Description

Technical Field

[0001] This invention relates to the technical field of concrete formwork assembly and disassembly mechanisms, specifically a rapid assembly and disassembly mechanism for formwork used in steel pipe and steel slag concrete construction. Background Technology

[0002] Steel-slag concrete with steel pipes is a new type of composite material that uses industrial waste steel slag as aggregate or admixture to replace part of the natural aggregate in steel-slag concrete structures. It has the advantages of resource recycling, low cost, high density and high later strength. It is gradually being promoted and applied in the fields of building engineering, bridge engineering and municipal infrastructure. In the construction process of steel-slag concrete with steel pipes, the formwork system is the key temporary structure to ensure the accurate positioning of steel pipes and the quality of concrete forming. The existing formwork assembly and disassembly mechanisms mainly include several common forms such as bolt tie type, wedge block clamping type and pin shaft connection type. Existing quick-assembly and disassembly mechanisms for steel pipe and steel slag concrete construction are problematic because the steel slag aggregate in steel slag concrete has sharp edges and a rough surface. When disassembling the formwork, the friction and adhesion between the formwork and the concrete are significantly greater than those of ordinary concrete. Using traditional pry bars to pry off the formwork is not only inefficient but also easily damages the edges and surfaces of the concrete, affecting the molding quality. Summary of the Invention

[0003] The purpose of this invention is to provide a quick assembly and disassembly mechanism for formwork in steel pipe and steel slag concrete construction. By inserting one end of the plug rod into the plug platform, the positioning pin is squeezed and pushed to move the positioning pin inside the second groove, thereby inserting the positioning pin into the interior of another set of formwork bodies. This allows for the quick installation of the two sets of formwork bodies. Simultaneously, during disassembly, the plug rod is pulled out of the plug groove by tapping the plate, making the formwork easy and quick to disassemble.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a quick assembly and disassembly mechanism for formwork used in steel pipe and steel slag concrete construction, comprising a formwork body, a fixing seat installed on the formwork body, an auxiliary mechanism installed on the formwork body, a first insertion seat installed on one side of the formwork body, and a second insertion seat installed on the other side of the formwork body; The auxiliary mechanism includes a threaded rod that rotates inside a fixed base. One end of the threaded rod passes through the template body and is connected to an extrusion plate. The extrusion plate moves inside the template body. A first groove is formed inside the extrusion plate. Both ends of the first groove are connected to water spray pipes. One end of the threaded rod moves inside the first groove. A first spring is installed inside the first groove. An insertion mechanism is also installed on the template body. The insertion mechanism includes an insertion rod inserted into a first insertion seat and a second insertion seat. A sealing groove is installed on one side of the template body, and a sealing sheet is movable inside the sealing groove. Multiple sets of extrusion columns are movable inside the first insertion seat, and one end of each set of extrusion columns passes through the sealing groove and is connected to the sealing sheet. An insertion platform is installed on one side of the template body, and a positioning pin is movable inside the insertion platform. A second groove is opened on one side of the template body, and the positioning pin is movable inside the second groove.

[0005] Preferably, the fixing seat is equipped with two sets of fixing anchors, one end of the two sets of fixing anchors is connected to the ground, and the template body is equipped with multiple sets of reinforcing ribs.

[0006] Preferably, both the first and second connectors have internal connector slots, and the dimensions of the multiple connector slots are adapted to the connector rod.

[0007] Preferably, the threaded rod is connected to the fixed seat by a thread, one end of the threaded rod is equipped with an extrusion plate, the extrusion plate is rotatably connected to the first spring, and one end of each of the two sets of water spray pipes passes through the extrusion plate.

[0008] Preferably, a feeding pipe is provided inside the threaded rod, a first check valve is installed inside the feeding pipe, and a second check valve is installed inside both sets of water spray pipes.

[0009] Preferably, a plug sleeve is installed inside the plug-in platform, one end of the plug rod has a tapered design, the size of the plug sleeve is adapted to the tapered shape of one end of the plug rod, and one end of the positioning pin is connected to a second spring, which is installed inside the second groove.

[0010] Preferably, one end of each of the multiple sets of extrusion columns is spherical, the sealing sheet slides inside the sealing groove, and a striking plate is installed at one end of the sealing sheet.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention uses an extrusion plate to push a first spring, which in turn drives the extrusion plate to move and extrude the formed concrete. At the same time, when the extrusion plate moves in the first groove, the release liquid added by the feeding pipe is sprayed out through two sets of water spray pipes, which further improves the quality of the formed concrete and avoids the formwork body from sticking to the concrete during demolding, which would lead to unevenness of the outer surface of the concrete and affect the quality of the concrete.

[0012] 2. In this invention, one end of the insertion rod is inserted into the insertion platform to press the positioning pin, which pushes the positioning pin to move inside the second groove, thereby inserting the positioning pin into the interior of another set of template bodies. This allows for the quick installation of the two sets of template bodies. At the same time, during disassembly, the insertion rod is pulled out of the insertion groove by tapping the plate, making it convenient and quick to disassemble the template.

[0013] 3. When the plug rod moves inside the plug groove opened in the first plug seat and the second plug seat, the conical surface on one side of the plug rod contacts and squeezes the extrusion column, thereby pushing multiple sets of extrusion columns to move. The multiple sets of extrusion columns move and squeeze the sealing plate, thereby preventing concrete from leaking out between the first plug seat and the second plug seat during pouring, and further improving the pouring quality of concrete. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is one of the structural schematic diagrams of the auxiliary mechanism of the present invention; Figure 3 This is one of the structural schematic diagrams of the insertion mechanism of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of section A in the middle; Figure 5 This is a second schematic diagram of the auxiliary mechanism of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of section B; Figure 7 This is a second schematic diagram of the plug-in mechanism of the present invention.

[0015] In the diagram: 1. Template body; 11. Reinforcing rib; 12. Fixing seat; 13. Fixing anchor; 14. First insertion seat; 15. Second insertion seat; 2. Auxiliary mechanism; 21. Extrusion plate; 22. Threaded rod; 23. Extrusion piece; 24. First spring; 25. Water spray pipe; 26. Feeding pipe; 3. Insertion mechanism; 31. Striking plate; 32. Sealing piece; 33. Sealing groove; 34. Insertion rod; 35. Insertion platform; 36. Insertion sleeve; 37. Positioning pin; 38. Extrusion column; 39. Second spring. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] Figures 1 to 7As shown, the present invention provides a quick assembly and disassembly mechanism for formwork used in steel pipe and steel slag concrete construction, including a formwork body 1, a fixing seat 12 installed on the formwork body 1, an auxiliary mechanism 2 installed on the formwork body 1, a first insertion seat 14 installed on one side of the formwork body 1, and a second insertion seat 15 installed on the other side of the formwork body 1. The auxiliary mechanism 2 includes a threaded rod 22 that rotates inside the fixed seat 12. One end of the threaded rod 22 passes through the template body 1 and is connected to an extrusion plate 21. The extrusion plate 21 moves inside the template body 1. A first groove is provided inside the extrusion plate 21. Both ends of the first groove are connected to water spray pipes 25. One end of the threaded rod 22 moves inside the first groove. A first spring 24 is installed inside the first groove. An insertion mechanism 3 is also installed on the template body 1. The insertion mechanism 3 includes an insertion rod 34 that is inserted into the first insertion seat 14 and the second insertion seat 15. A sealing groove 33 is installed on one side of the template body 1, and a sealing sheet 32 ​​is movable inside the sealing groove 33. Multiple sets of extrusion columns 38 are movable inside the first insertion seat 14. One end of each set of extrusion columns 38 passes through the sealing groove 33 and is connected to the sealing sheet 32. An insertion platform 35 is installed on one side of the template body 1, and a positioning pin 37 is movable inside the insertion platform 35. A second groove is opened on one side of the template body 1, and the positioning pin 37 is movable inside the second groove.

[0018] In use, first place a set of template bodies 1 on the ground and fix the template body 1 by rotating the fixing anchor 13. At the same time, pair and install the first insertion seat 14 on the other set of template bodies 1 with the second insertion seat 15 on the previous set of template bodies 1. Insert the insertion rod 34 into the insertion groove inside the first insertion seat 14 and the second insertion seat 15. At the same time, use the tapping plate 31 to tap and press the insertion rod 34 to assist the insertion rod 34 in moving in the insertion groove. At the same time, one end of the insertion rod 34 is inserted into the insertion platform 35 to squeeze the positioning pin 37, which pushes the positioning pin 37 to squeeze the second spring 39 inside the second groove, thereby inserting the positioning pin 37 into the other set of template bodies 1. The two sets of template bodies 1 can be quickly installed. At the same time, when disassembling, the insertion rod 34 can be pulled out from the insertion groove by tapping the plate 31, which makes the template easy and quick to disassemble. Meanwhile, after the steel pipe slag concrete is formed, the rotating threaded rod 22 drives the extrusion plate 23 to move. The extrusion plate 23 squeezes the first spring 24 inside the first groove. At the same time, a certain amount of release liquid is pre-added to the first groove through the feeding pipe 26. The extrusion plate 23 pushes the first spring 24, which in turn drives the extrusion plate 21 to move, thus squeezing the formed concrete. At the same time, when the extrusion plate 23 moves in the first groove, the release liquid added by the feeding pipe 26 is sprayed out through two sets of water spray pipes 25, which further improves the quality of the formed concrete and avoids the formwork body 1 from sticking to the concrete during demolding, which would lead to unevenness on the outer surface of the concrete and affect the quality of the concrete. At the same time, different liquids can be introduced into the inside of the feeding pipe 26 as needed to assist the extrusion plate 21 in demolding; Simultaneously, when the plug rod 34 moves inside the plug grooves opened in the first plug seat 14 and the second plug seat 15, it contacts and squeezes the extrusion column 38 through the conical surface on one side of the plug rod 34, thereby pushing multiple sets of extrusion columns 38 to move. The multiple sets of extrusion columns 38 move and squeeze the sealing plate 32, thereby preventing concrete from leaking out between the first plug seat 14 and the second plug seat 15 during pouring, and further improving the pouring quality of concrete.

[0019] In an optional embodiment, two sets of fixing anchors 13 are installed on the fixing base 12, one end of the two sets of fixing anchors 13 is connected to the ground, and multiple sets of reinforcing ribs 11 are installed on the template body 1.

[0020] It should be noted that the fixing anchor 13 uses high-strength expansion bolts or anchor bolts. Its length and diameter are determined according to the height of the template body 1 and the lateral pressure during concrete pouring. The reinforcing rib 11 is a longitudinally arranged steel rib plate, welded to the back of the template body 1, used to improve the overall rigidity of the template body 1 and prevent bending deformation due to expansion pressure during the pouring of steel slag concrete. The two sets of fixing anchors 13 are symmetrically arranged on both sides of the fixing seat 12 to ensure that the template body 1 will not overturn or shift when subjected to unidirectional lateral pressure.

[0021] In an optional embodiment, both the first socket 14 and the second socket 15 are provided with socket slots, and the dimensions of the multiple socket slots are adapted to the socket rod 34.

[0022] It should be noted that the first insertion seat 14 and the second insertion seat 15 are located on the left and right sides of the template body 1, respectively, forming a male and female mating structure. The cross-sectional shape of the insertion groove can be rectangular, trapezoidal or dovetail-shaped. At the same time, the exposed part is convenient for the operation of the striking plate 31. The inner wall of the insertion groove is quenched or inlaid with wear-resistant copper sleeves to resist the wear caused by repeated insertion during the construction of steel slag concrete.

[0023] In an optional embodiment, the threaded rod 22 is threadedly connected to the fixed seat 12, and an extrusion plate 23 is installed at one end of the threaded rod 22. The extrusion plate 23 is rotatably connected to the first spring 24, and one end of each of the two sets of water spray pipes 25 passes through the extrusion plate 21.

[0024] It should be noted that the threaded rod 22 adopts a trapezoidal or rectangular thread, and the extrusion plate 23 is rotatably connected to the end of the threaded rod 22 through a thrust bearing or a smooth surface, so that when the threaded rod 22 rotates, the extrusion plate 23 only moves axially and does not rotate with the threaded rod 22, thus avoiding torsional load on the first spring 24. The first spring 24 is a compression helical spring, which ensures that the extrusion plate 21 can be automatically reset when the threaded rod 22 retracts. The water spray pipe 25 passes through both ends of the extrusion plate 21 to ensure that the release liquid can be sprayed evenly.

[0025] In an optional embodiment, a feeding pipe 26 is provided inside the threaded rod 22, and a first check valve is installed inside the feeding pipe 26. A second check valve is installed inside each of the two sets of water spray pipes 25.

[0026] It should be noted that the feeding pipe 26 is opened along the axis of the threaded rod 22, one end extends to the outer end face of the threaded rod 22 and is equipped with a sealing cap or quick connector, and the other end is connected to the first groove. The first one-way valve is used to prevent liquid or gas in the extrusion plate 21 from flowing back, and the second one-way valve is installed at the outlet end or inside of the spray pipe 25 to prevent concrete slurry or external debris from being sucked back into the spray pipe 25 and causing blockage.

[0027] In an optional embodiment, a plug sleeve 36 is installed inside the plug station 35, and one end of the plug rod 34 is tapered. The size of the plug sleeve 36 is adapted to the tapered shape of one end of the plug rod 34. One end of the positioning pin 37 is connected to a second spring 39, which is installed inside the second groove.

[0028] It should be noted that the insertion sleeve 36 is made of wear-resistant alloy steel, and its inner hole is a tapered surface that matches the tapered end of the insertion rod 34. After the insertion rod 34 is fully inserted into the insertion sleeve 36, the tapered surfaces fit together to form an axial lock, while generating a radial component force, making it difficult for the insertion rod 34 to come out without external force. The front end of the positioning pin 37 is hemispherical, and the rear end abuts against the second spring 39. When the insertion rod 34 is inserted into the insertion sleeve 36, the tapered end of the insertion rod 34 pushes the positioning pin 37 to compress the second spring 39. The positioning pin 37 extends out of the second groove and is inserted into the corresponding positioning hole of the adjacent template body 1 to achieve locking.

[0029] In an optional embodiment, one end of each of the multiple sets of extrusion columns 38 is spherical, the sealing plate 32 slides inside the sealing groove 33, and a striking plate 31 is installed on one end of the sealing plate 32.

[0030] It should be noted that the extrusion columns 38 are arranged at intervals along the length of the first insertion seat 14. The spherical end of the extrusion column 38 contacts the outer wall of the insertion rod 34. When the insertion rod 34 is inserted, its cylindrical or conical surface pushes the spherical end to make the extrusion column 38 move radially. The other end of the extrusion column 38 penetrates the side wall of the sealing groove 33 and is fixedly connected to or abuts against the sealing plate 32. The sealing plate 32 is made of elastic material and its width is the same as the width of the sealing groove 33. When the insertion rod 34 is inserted, multiple sets of extrusion columns 38 simultaneously push the sealing plate 32 to expand towards the joint of the template body 1, forming a continuous sealing strip, which effectively prevents concrete slurry from leaking from the template joint.

[0031] Working principle: In use, first place a set of template bodies 1 on the ground and fix the template body 1 by rotating the fixing anchor 13. At the same time, pair and install the first insertion seat 14 on the other set of template bodies 1 with the second insertion seat 15 on the previous set of template bodies 1. Insert the insertion rod 34 into the insertion groove inside the first insertion seat 14 and the second insertion seat 15. At the same time, use the tapping plate 31 to tap and press the insertion rod 34 to assist the insertion rod 34 to move in the insertion groove. Meanwhile, one end of the insertion rod 34 is inserted into the insertion platform 35 to squeeze the positioning pin 37, which pushes the positioning pin 37 to squeeze the second spring 39 inside the second groove, thereby inserting the positioning pin 37 into the other set of template bodies 1. Meanwhile, after the steel pipe slag concrete is formed, the rotating threaded rod 22 drives the extrusion plate 23 to move. The extrusion plate 23 squeezes the first spring 24 inside the first groove. At the same time, a certain amount of release liquid is pre-added to the first groove through the feeding pipe 26. The extrusion plate 23 pushes the first spring 24, which in turn drives the extrusion plate 21 to move, thus squeezing the formed concrete. At the same time, when the extrusion plate 23 moves in the first groove, the release liquid added by the feeding pipe 26 is sprayed out through two sets of water spray pipes 25. At the same time, different liquids can be introduced into the inside of the feeding pipe 26 as needed to assist the extrusion plate 21 in demolding; At the same time, when the plug rod 34 moves inside the plug groove opened in the first plug seat 14 and the second plug seat 15, it contacts and squeezes the extrusion column 38 through the conical surface on one side of the plug rod 34, thereby pushing multiple sets of extrusion columns 38 to move, and the multiple sets of extrusion columns 38 move to squeeze the sealing sheet 32.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick assembly and disassembly mechanism for formwork used in steel pipe and steel slag concrete construction, comprising a formwork body (1), characterized in that, A fixing seat (12) is installed on the template body (1), an auxiliary mechanism (2) is installed on the template body (1), a first plug-in seat (14) is installed on one side of the template body (1), and a second plug-in seat (15) is installed on the other side of the template body (1). The auxiliary mechanism (2) includes a threaded rod (22) that rotates inside the fixed seat (12). One end of the threaded rod (22) passes through the template body (1) and is connected to an extrusion plate (21). The extrusion plate (21) moves inside the template body (1). A first groove is provided inside the extrusion plate (21). Both ends of the first groove are connected to water spray pipes (25). One end of the threaded rod (22) moves inside the first groove. A first spring (24) is installed inside the first groove. A plug-in mechanism (3) is also installed on the template body (1). The insertion mechanism (3) includes an insertion rod (34) inserted into the first insertion seat (14) and the second insertion seat (15). A sealing groove (33) is installed on one side of the template body (1). A sealing sheet (32) is movable inside the sealing groove (33). Multiple sets of extrusion columns (38) are movable inside the first insertion seat (14). One end of each set of extrusion columns (38) passes through the sealing groove (33) and is connected to the sealing sheet (32). An insertion platform (35) is installed on one side of the template body (1). A positioning pin (37) is movable inside the insertion platform (35). A second groove is opened on one side of the template body (1). The positioning pin (37) is movable inside the second groove.

2. The quick assembly and disassembly mechanism for formwork in steel pipe and steel slag concrete construction according to claim 1, characterized in that, Two sets of fixing anchors (13) are installed on the fixing seat (12), one end of the two sets of fixing anchors (13) is connected to the ground, and multiple sets of reinforcing ribs (11) are installed on the template body (1).

3. The quick assembly and disassembly mechanism for formwork in steel pipe and steel slag concrete construction according to claim 1, characterized in that, Both the first plug-in socket (14) and the second plug-in socket (15) have plug-in slots inside, and the dimensions of the multiple sets of plug-in slots are adapted to the plug-in rod (34).

4. The quick assembly and disassembly mechanism for formwork in steel pipe and steel slag concrete construction according to claim 1, characterized in that, The threaded rod (22) is connected to the fixed seat (12) by a thread. One end of the threaded rod (22) is equipped with an extrusion plate (23). The extrusion plate (23) is rotatably connected to the first spring (24). One end of each of the two sets of water spray pipes (25) passes through the extrusion plate (21).

5. The quick assembly and disassembly mechanism for formwork in steel pipe and steel slag concrete construction according to claim 1, characterized in that, The threaded rod (22) has a feeding pipe (26) inside, and a first check valve is installed inside the feeding pipe (26). Both sets of water spray pipes (25) are equipped with a second check valve.

6. The quick assembly and disassembly mechanism for formwork in steel pipe and steel slag concrete construction according to claim 5, characterized in that, The insertion platform (35) is equipped with an insertion sleeve (36) inside. One end of the insertion rod (34) is tapered. The size of the insertion sleeve (36) is adapted to the tapered shape of one end of the insertion rod (34). One end of the positioning pin (37) is connected to a second spring (39), which is installed inside the second groove.

7. The quick assembly and disassembly mechanism for formwork in steel pipe and steel slag concrete construction according to claim 1, characterized in that, One end of each of the multiple sets of extrusion columns (38) is spherical, the sealing plate (32) slides inside the sealing groove (33), and a striking plate (31) is installed on one end of the sealing plate (32).

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