Exterior wall formwork erecting structure for cover-excavation method top-down construction

Abstract

The utility model relates to the field of formwork erecting structures, in particular to a cover-excavation method top-down construction outer wall formwork erecting structure which comprises a supporting plate. The right end of the supporting plate is fixedly connected with a plurality of evenly-distributed fixing plates, and the front ends and the rear ends of the fixing plates are fixedly connected with first hinged supports. According to the utility model, the second insertion block is inserted into the inner wall of the groove, and then the second internal thread cylinder is simultaneously mounted on the outer wall of the right end of the first threaded column and the outer wall of the left end of the threaded rod in a threaded manner, so that the second internal thread cylinder can be quickly mounted; the first threaded column penetrates through the supporting plate to be installed in a to-be-supported object in a threaded mode, stable supporting of the supporting plate can be achieved, and the problems that in the prior art, a reverse construction outer wall formwork supporting structure cannot replace single-side shaping formwork construction, the supporting stability of a reverse basement wall body and a pouring opening is difficult to guarantee, and the construction cost is low are solved. And the construction quality of basement exterior wall concrete cannot be improved.

Description

Technical Field

[0001] The utility model belongs to the field of template supporting structures, in particular to an external wall template supporting structure for reverse construction using a cover-and-cut method. Background Art

[0002] Currently, quality control of the basement exterior wall construction is a major challenge during top-down excavation construction. Because the design blueprints indicate a very small gap between the underground diaphragm wall and the basement exterior wall, typically around 100mm, conventional double-sided formwork cannot be used for the exterior wall formwork. Instead, single-sided, standardized formwork is required.

[0003] Single-sided standardized formwork construction is when double-sided formwork construction is impossible. The tensile force generated by the embedded components at the bottom of the wall and the formwork system is used. The inclined support of the formwork replaces the tension of the tension screws in conventional double-sided formwork construction to ensure the stability of the formwork system. However, this construction method has its shortcomings. The basement floor heights in different fields and projects often vary greatly. The formwork construction requires a long time for in-depth design. The single-sided standardized formwork is assembled and supported on-site according to the "module". It has high construction operation requirements for workers, requires a long time for education and training, and the construction cost is relatively high. The reverse construction exterior wall formwork support structure in the existing technology cannot replace the single-sided standardized formwork construction, it is difficult to ensure the stability of the reverse basement wall and pouring port support, and cannot improve the construction quality of the basement exterior wall concrete.

[0004] Therefore, a cover-and-cut method top-down construction exterior wall formwork support structure is proposed, which can replace the single-sided standardized formwork construction, ensure the stability of the top-down basement wall and pouring port support, and thus improve the construction quality of the basement exterior wall concrete. Utility Model Content

[0005] In order to overcome the problem that the reverse construction exterior wall formwork support structure in the existing technology cannot replace the single-sided standardized formwork construction, it is difficult to ensure the stability of the reverse construction basement wall and pouring mouth support, and it is impossible to improve the construction quality of the basement exterior wall concrete.

[0006] The technical solution of the utility model is: a cover-excavation method reverse construction exterior wall formwork support structure, including a support plate; the right end of the support plate is fixedly connected to a plurality of evenly distributed fixed plates, the front and rear ends of the fixed plate are fixedly connected to a first hinge seat, a guide rail is provided on the right side of the support plate, the inner wall of the guide rail is slidingly provided with two sliders, the upper end of the slider is fixedly connected to a bearing block, the upper end of the bearing block is fixedly connected to a fixing rod, the outer wall of the fixing rod is fixedly connected to evenly distributed fixing plates, and the left and right ends of the fixing plate are through-threaded with evenly distributed first screws. A nut is threadedly installed on the outer wall of the first threaded column, and a support assembly is provided on the fixed plate; the support assembly includes a groove, a second plug-in block, a connecting block, a threaded rod and a second internally threaded barrel; the upper end of the fixed plate is penetrated downward with evenly distributed grooves, and the inner wall of the groove is movably provided with a second plug-in block, the left end of the second plug-in block is fixedly connected to the connecting block, the left end of the connecting block is fixedly connected to the threaded rod, the left end outer wall of the threaded rod is threadedly installed with a second internally threaded barrel, and the inner wall of the second internally threaded barrel is also threadedly installed on the right end outer wall of the first threaded column.

[0007] Preferably, the second plug is inserted into the inner wall of the groove, and then the second internal threaded tube is simultaneously threadedly installed on the right end outer wall of the first threaded column and the left end outer wall of the threaded rod, so that the second internal threaded tube can be quickly installed, and the nut is threadedly installed on the outer wall of the first threaded column, and the first threaded column is threaded through the support plate and installed in the object to be supported, so as to achieve stable support for the support plate, solving the problem in the prior art that the reverse construction exterior wall formwork support structure cannot replace the single-sided standardized formwork construction, it is difficult to ensure the stability of the reverse construction basement wall and pouring mouth support, and it is impossible to improve the construction quality of the basement exterior wall concrete.

[0008] Preferably, bolts are threadedly installed at the four corner edges of the upper end of the supporting block, and the lower ends of the bolts pass through the supporting block and are threadedly installed on the upper inner wall of the guide rail. By passing the bolts through the supporting block and threading them on the upper inner wall of the guide rail, stable installation of the supporting block can be achieved.

[0009] The lockhole that is formed on the upper part of the second rim is formed on the second rim of the second rim, and the lockhole that is formed on the second rim of the second rim is formed on the second rim of the second rim.

[0010] Preferably, the left end of the mounting body is fixed with two support rods, the left end of the support rod is fixed with a fixing block, and the left end of the fixing block is provided with a second screw hole. The arrangement of the mounting body and the support rods can improve the support for the support plate.

[0011] Preferably, two first screw holes are provided through the left end of the support plate to the right, the inner wall of the first screw hole is threadedly installed with a second threaded column, and the outer wall of the right end of the second threaded column is threadedly installed on the inner wall of the second screw hole. The second threaded column is threadedly installed on the inner wall of the first screw hole, and the outer wall of the right end of the second threaded column is threadedly installed on the inner wall of the second screw hole, which can improve the stability of the support of the support plate.

[0012] The two fixing plates are connected to each other with two first and second fixing blocks, each of which is fixed with a first end fixed to a top end of the fixing plate, and the two fixing blocks are connected to each other with a first end fixed to a top end of the fixing plate.

[0013] Preferably, the movable plate and the first plug-in block are both made of stainless steel and have a certain deadweight, which can improve the overall stability of the device.

[0014] Beneficial effects of the utility model:

[0015] 1. By inserting the second plug into the inner wall of the groove, and then threading the second internally threaded barrel into the right outer wall of the first threaded column and the left outer wall of the threaded rod at the same time, the second internally threaded barrel can be quickly installed. The nut is threadedly installed on the outer wall of the first threaded column, and the first threaded column is passed through the support plate and threadedly installed in the object to be supported, thereby achieving stable support for the support plate. This solves the problem that the reverse construction exterior wall formwork support structure in the prior art cannot replace the single-side standardized formwork construction, it is difficult to ensure the stability of the reverse construction basement wall and pouring port support, and it cannot improve the construction quality of the basement exterior wall concrete;

[0016] 2. After rotating the rotating arm, make the inner wall of the through hole flush with the inner wall of the first hinge seat, place the mounting rod on the inner wall of the through hole and the upper hole of the first hinge seat at the same height, and then screw the third internally threaded barrel onto the outer walls of the front and rear ends of the mounting rod, so that the ends of the two third internally threaded barrels that are close to each other fit into the ends of the two first hinge seats at the same height that are far away from each other. This can achieve fast and stable installation of the rotating arm, thereby improving the stable support effect of the support plate.

[0017] 3. By threading the second threaded column into the inner wall of the first screw hole and threading the outer wall of the right end of the second threaded column into the inner wall of the second screw hole, the stability of the support of the support plate can be improved. By using the first internal threaded tube to fit the ends of the two first mounting plates on different sides that are close to each other with the left and right ends of the movable plate, the stability of the three movable plates after installation can be improved. By inserting the first plug into the inner walls of the grooves on the two fixed plates at the same height, the stable placement of the reinforcement component can be achieved, thereby improving the overall stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a three-dimensional structural diagram of an exterior wall formwork support structure for top-down construction using the cover-and-cut method of the present invention;

[0019] Figure 2 Shown is a schematic diagram of the three-dimensional structure of the second mounting plate of the external wall formwork support structure of the cover-cut method reverse construction of the present invention;

[0020] Figure 3 Shown is a schematic diagram of the three-dimensional disassembled structure of the threaded rod and the second internally threaded cylinder of a cover-cut method reverse construction exterior wall formwork support structure of the present invention;

[0021] Figure 4Shown is a schematic diagram of the three-dimensional disassembled structure of the support plate, the fixing block and the second threaded column of the external wall formwork support structure of the cover-cut method reverse construction of the present invention;

[0022] Figure 5 Shown is a three-dimensional structural diagram of a reinforcement component of an external wall formwork support structure constructed using a cover-and-cut method in a reverse construction manner according to the present invention;

[0023] Figure 6 The utility model shows a cover-excavation method for reverse construction of external wall formwork support structure Figure 3 A is a partial enlarged schematic diagram of the three-dimensional structure.

[0024] The marks in the accompanying drawings are: 1. support plate; 2. fixing plate; 201. first threaded column; 202. nut; 3. first hinge seat; 4. guide rail; 5. slider; 6. bearing block; 7. bolt; 8. fixing rod; 801. movable plate; 802. first plug-in block; 803. slide groove; 804. mounting column; 805. first mounting plate; 806. first internally threaded barrel; 9. fixing plate; 901. groove; 902. second plug-in block; 903. connecting block; 904. threaded rod; 905. second internally threaded barrel; 10. second mounting plate; 11. second hinge seat; 12. rotating arm; 13. through hole; 14. mounting body; 15. support rod; 16. fixing block; 17. mounting rod; 18. third internally threaded barrel; 19. first screw hole; 20. second threaded column; 21. second screw hole. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Example 1

[0027] See also Figure 1-6A cover-and-cut method reverse construction exterior wall formwork support structure includes a support plate 1; a plurality of evenly distributed fixing plates 2 are fixedly connected to the right end of the support plate 1, and a first hinge seat 3 is fixedly connected to the front and rear ends of the fixing plate 2. A guide rail 4 is provided on the right side of the support plate 1, and two sliders 5 are slidingly provided on the inner wall of the guide rail 4. The upper end of the slider 5 is fixedly connected to a bearing block 6, and the upper end of the bearing block 6 is fixedly connected to a fixing rod 8. The outer wall of the fixing rod 8 is fixedly connected to evenly distributed fixing plates 9. Evenly distributed first threaded columns 201 are threadedly installed on the left and right ends of the fixing plate 2, and nuts 202 are threadedly installed on the outer wall of the first threaded column 201. , a support assembly is provided on the fixed disk 9; the support assembly includes a groove 901, a second plug-in block 902, a connecting block 903, a threaded rod 904 and a second internally threaded cylinder 905; the upper end of the fixed disk 9 is penetrated downward with evenly distributed grooves 901, and the inner wall of the groove 901 is movably provided with a second plug-in block 902, the left end of the second plug-in block 902 is fixedly connected to the connecting block 903, the left end of the connecting block 903 is fixedly connected to the threaded rod 904, the left end outer wall of the threaded rod 904 is threadedly installed with a second internally threaded cylinder 905, and the inner wall of the second internally threaded cylinder 905 is also threadedly installed on the right end outer wall of the first threaded column 201.

[0028] See also Figure 1 In this embodiment, bolts 7 are threadedly installed at the four corner edges of the upper end of the bearing block 6, and the lower ends of the bolts 7 pass through the bearing block 6 and are threadedly installed on the inner wall of the upper end of the guide rail 4.

[0029] See also Figure 1 and 2 In this embodiment, a second mounting plate 10 is provided on the right side of the guide rail 4, and a mounting body 14 is fixedly connected to the middle part of the upper end of the second mounting plate 10. Two second hinge seats 11 symmetrical about the mounting body 14 are fixedly connected to the upper end of the second mounting plate 10. A rotating arm 12 is hinged on the inner wall of the second hinge seat 11, and a through hole 13 is opened through the front end of the rotating arm 12 backward. The inner wall of the through hole 13 is flush with the inner wall of the hole on the first hinge seat 3. A mounting rod 17 is movably provided on the inner wall of the through hole 13 and the inner wall of the hole on the first hinge seat 3. A third internally threaded tube 18 is threadedly installed on the outer walls of the front and rear ends of the mounting rod 17, and the ends of the two third internally threaded tubes 18 that are close to each other are in contact with the ends of the two first hinge seats 3 at the same height that are far away from each other.

[0030] See also Figure 2 and 4 In this embodiment, the left end of the mounting body 14 is fixedly connected to two support rods 15 , the left end of the support rod 15 is fixedly connected to a fixing block 16 , and the left end of the fixing block 16 is provided with a second screw hole 21 .

[0031] See also Figure 4In this embodiment, two first screw holes 19 are opened through the left end of the support plate 1 to the right, and the inner wall of the first screw hole 19 is threadedly installed with a second threaded column 20, and the right end outer wall of the second threaded column 20 is threadedly installed on the inner wall of the second screw hole 21.

[0032] In this embodiment: insert the second plug block 902 into the inner wall of the groove 901, and then simultaneously thread the second internally threaded cylinder 905 on the right end outer wall of the first threaded column 201 and the left end outer wall of the threaded rod 904, so as to achieve the rapid installation of the second internally threaded cylinder 905, thread the nut 202 on the outer wall of the first threaded column 201, and thread the first threaded column 201 through the support plate 1 and install it in the object to be supported, so as to achieve stable support for the support plate 1, pass the bolt 7 through the bearing block 6 and thread it on the upper end inner wall of the guide rail 4, so as to achieve stable installation of the bearing block 6, and after rotating the rotating arm 12, the through The inner wall of the hole 13 is flush with the inner wall of the first hinge seat 3. The mounting rod 17 is placed on the inner wall of the through hole 13 and the upper hole of the first hinge seat 3 at the same height, and then the third internally threaded tube 18 is threadedly installed on the outer walls of the front and rear ends of the mounting rod 17, so that the ends of the two third internally threaded tubes 18 that are close to each other are fit together with the ends of the two first hinge seats 3 at the same height that are far away from each other, so that the rotating arm 12 can be installed quickly and stably, and the second threaded column 20 is threadedly installed on the inner wall of the first screw hole 19, and at the same time, the outer wall of the right end of the second threaded column 20 is threadedly installed on the inner wall of the second screw hole 21, which can improve the stability of the support of the support plate 1.

[0033] Example 2

[0034] See also Figure 5 806 , the outer wall of the two first mounting plates 805 is threaded with a threaded sleeve 806 , and the two first mounting plates 805 are screwed together.

[0035] In this embodiment: the first internal threaded tube 806 is used to fit the ends of the two first mounting plates 805 on different sides that are close to each other with the left and right ends of the movable plate 801, so as to improve the stability of the three movable plates 801 after installation, and the first plug block 802 is inserted into the inner wall of the groove 901 on the two fixed plates 9 at the same height, so as to achieve stable placement of the reinforcement component, thereby improving the overall stability of the device.

[0036] Working principle: First, insert the second plug 902 into the inner wall of the groove 901, then simultaneously thread the second internally threaded barrel 905 onto the right outer wall of the first threaded column 201 and the left outer wall of the threaded rod 904 to achieve quick installation of the second internally threaded barrel 905, thread the nut 202 onto the outer wall of the first threaded column 201, and then thread the first threaded column 201 through the support plate 1 and into the object to be supported, thereby achieving stable support for the support plate 1;

[0037] Then, the bolt 7 is passed through the bearing block 6 and threadedly installed on the inner wall of the upper end of the guide rail 4 to achieve stable installation of the bearing block 6. After rotating the rotating arm 12, the inner wall of the through hole 13 is flush with the inner wall of the first hinge seat 3. The mounting rod 17 is placed on the inner wall of the through hole 13 and the upper hole of the first hinge seat 3 at the same height. Then, the third internally threaded tube 18 is threadedly installed on the outer walls of the front and rear ends of the mounting rod 17, so that the ends of the two third internally threaded tubes 18 that are close to each other are in contact with the ends of the two first hinge seats 3 at the same height that are far away from each other, so that the rotating arm 12 can be quickly and stably installed.

[0038] Then, the second threaded column 20 is threadedly installed on the inner wall of the first screw hole 19, and the outer wall of the right end of the second threaded column 20 is threadedly installed on the inner wall of the second screw hole 21, which can improve the support stability of the support plate 1;

[0039] Finally, multiple first internal threaded tubes 806 are used to fit the ends of the two first mounting plates 805 on different sides that are close to each other with the left and right ends of the movable plate 801, so as to improve the stability of the three movable plates 801 after installation. Then, the first plug block 802 is inserted into the inner wall of the groove 901 on the two fixed plates 9 at the same height, so as to achieve stable placement of the reinforcement component, thereby improving the overall stability of the device.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A structure for supporting an exterior wall formwork in a top-down construction method, comprising a supporting plate (1); characterized in that: The right end of the support plate (1) is fixedly connected to a plurality of evenly distributed fixing plates (2), the front and rear ends of the fixing plate (2) are both fixedly connected to a first hinge seat (3), a guide rail (4) is provided on the right side of the support plate (1), two sliders (5) are slidably provided on the inner wall of the guide rail (4), the upper end of the slider (5) is fixedly connected to a bearing block (6), the upper end of the bearing block (6) is fixedly connected to a fixing rod (8), the outer wall of the fixing rod (8) is fixedly connected to evenly distributed fixing plates (9), the left and right ends of the fixing plate (2) are threadedly installed with evenly distributed first threaded columns (201), the outer wall of the first threaded column (201) is threadedly installed with a nut (202), and a support assembly is provided on the fixing plate (9). The supporting assembly comprises a groove (901), a second plug-in block (902), a connecting block (903), a threaded rod (904) and a second internally threaded barrel (905); the upper end of the fixed plate (9) is penetrated downwardly by a groove (901) evenly distributed, the inner wall of the groove (901) is movably provided with a second plug-in block (902), the left end of the second plug-in block (902) is fixedly connected to the connecting block (903), the left end of the connecting block (903) is fixedly connected to the threaded rod (904), the left end outer wall of the threaded rod (904) is threadedly mounted with the second internally threaded barrel (905), and the inner wall of the second internally threaded barrel (905) is also threadedly mounted on the right end outer wall of the first threaded column (201).

2. The external wall formwork support structure for top-down construction using the cover-and-cut method according to claim 1, characterized in that: Bolts (7) are threadedly mounted at the four corner edges of the upper end of the bearing block (6), and the lower ends of the bolts (7) pass through the bearing block (6) and are threadedly mounted on the inner wall of the upper end of the guide rail (4).

3. The external wall formwork support structure for top-down construction using the cover-and-cut method according to claim 1 is characterized by: A second mounting plate (10) is provided on the right side of the guide rail (4), a mounting body (14) is fixedly connected to the middle of the upper end of the second mounting plate (10), two second hinge seats (11) symmetrical about the mounting body (14) are fixedly connected to the upper end of the second mounting plate (10), a rotating arm (12) is hingedly connected to the inner wall of the second hinge seat (11), a through hole (13) is provided through the front end of the rotating arm (12) to the rear, the inner wall of the through hole (13) is flush with the inner wall of the upper hole of the first hinge seat (3), a mounting rod (17) is movably provided on the inner wall of the through hole (13) and the upper hole of the first hinge seat (3), and a third internal threaded cylinder (18) is threadedly installed on the outer walls of the front and rear ends of the mounting rod (17), and the ends of the two third internal threaded cylinders (18) that are close to each other are in contact with the ends of the two first hinge seats (3) at the same height that are far away from each other.

4. The external wall formwork support structure for top-down construction using the cover-and-cut method according to claim 3 is characterized by: The left end of the mounting body (14) is fixedly connected to two support rods (15), the left end of the support rod (15) is fixedly connected to a fixing block (16), and the left end of the fixing block (16) is provided with a second screw hole (21).

5. The external wall formwork support structure for top-down construction using the cover-and-cut method according to claim 4 is characterized by: The left end of the support plate (1) is provided with two first screw holes (19) extending rightward, the inner wall of the first screw hole (19) is threadedly mounted with a second threaded column (20), and the outer wall of the right end of the second threaded column (20) is threadedly mounted on the inner wall of the second screw hole (21).

6. The external wall formwork support structure for top-down construction using the cover-and-cut method according to claim 1 is characterized by: The fixed disk (9) is also provided with a reinforcement component, which includes a movable plate (801), a first plug-in block (802), a slide groove (803), a mounting column (804), a first mounting plate (805) and a first internal threaded cylinder (806); the upper ends of the two fixed disks (9) at the same height are movably provided with a movable plate (801), the lower ends of the movable plates (801) are fixedly connected with two first plug-in blocks (802), the first plug-in blocks (802) and the other groove (901) are adapted, and the movable plate ( A slide groove (803) is provided on the left end of the slide groove (801) to the right, and two mounting posts (804) are slidingly provided on the inner wall of the slide groove (803). The outer walls of the three mounting posts (804) whose center points are on the same vertical line are jointly sleeved with two first mounting plates (805). Two first internal threaded cylinders (806) are threadedly installed on the outer wall of any mounting post (804), and the ends of the two first mounting plates (805) on different sides that are close to each other are respectively fitted with the left and right ends of the movable plate (801).

7. The external wall formwork support structure for top-down construction using the cover-and-cut method according to claim 1 is characterized by: The movable plate (801) and the first plug-in block (802) are both made of stainless steel.

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