Formwork hanging equipment at descending plate position in floor and construction method

Abstract

The invention relates to the technical field of floor slab formwork hoisting, in particular to formwork hoisting equipment at a slab descending position in a floor and a construction method. According to the technical scheme, the floor slab comprises a floor slab body and further comprises a plurality of parallel and opposite first square pipes and second square pipes which are installed on the floor slab body, and the first square pipes and the second square pipes are made of stainless steel. Through the structural design of the first square pipe, the second square pipe, the first welding point, the inclined strut square pipe, the second welding point, the support mechanism and the like, the first square pipe and the second square pipe are made of stainless steel materials for formwork hanging, the strength is high, the integrity is good, and then the concrete impression is not prone to being affected by formwork deformation at the height difference position. The suspended formwork supporting frame is used for fixing the suspended formwork system, firmness and reliability are achieved, and potential quality hazards such as formwork shifting and formwork feeding are avoided. Meanwhile, the construction technology is simple, site construction is convenient, labor is saved, the construction efficiency is high, cost is saved, and the construction quality can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of floor slab hanging formwork, and in particular to a floor slab hanging formwork device and a construction method. Background Art

[0002] At present, according to the design of construction projects, the construction methods of various parts are different, resulting in a certain height difference in the top elevation of the structural floor, so there are a lot of hanging formwork construction. However, the height difference of the structural floor in the floor is small, the construction of the hanging formwork is difficult, and the molding quality is not easy to control. In the prior art, the floor height difference is usually supported by wooden squares (usually referring to wooden supports). This operation method not only leads to less floor height difference, but also the wooden squares are tied to the floor or beam reinforcements on the high platform with steel wires. The wooden squares are also prone to tilt and deformation, and the internal angle is not straight as a whole, and the angle deviation is large. And the integrity of the hanging formwork is poor, and the concrete at the height difference is poor, which is easy to cause the phenomenon of eating the formwork. At the same time, some wooden squares are left in the concrete slab to affect the thickness of the slab, which will eventually lead to low construction efficiency. In addition, in the hanging formwork construction, the wooden squares are used as the brackets of the formwork system, but the bottom ends of the wooden square brackets need to be fixed one by one with screws. This operation is very time-consuming and increases the complexity of the operation, which further leads to low construction efficiency. Summary of the invention

[0003] The purpose of the present invention is to solve the problems existing in the background technology and to provide a formwork hanging device and a construction method for a drop plate in a floor.

[0004] On the one hand, the present application provides a formwork hanging device at a drop-down point in a floor, comprising a floor body, and also comprising: a plurality of parallel and opposite first square tubes and second square tubes installed on the floor body, the first square tubes and the second square tubes being made of stainless steel, the ends of the second square tubes and the first welding points being connected by the first welding points, the inner walls of the ends of each pair of the second square tubes and the first welding points being provided with diagonal bracing square tubes, the contact ends of the diagonal bracing square tubes and the second square tubes and the first welding points being connected by the second welding points; a plurality of support mechanisms, arranged on the floor body for supporting the first square tubes and the second square tubes, the support mechanisms being provided with a pair of folding mechanisms for reducing the volume of the support mechanisms.

[0005] Optionally, the bracket mechanism includes a bracket and a V-shaped bracket, the bracket and the V-shaped bracket are fixedly connected, both ends of the bottom of the V-shaped bracket are provided with oblique support rods, the V-shaped bracket is fixedly connected with a vertical rod, the bottom end of the vertical rod is fixedly connected with a connecting head, the connecting head and the middle part of the bottom end of the bracket are fixedly connected with horizontal rods, the horizontal rods are provided with supports, the middle part of the supports is movably provided with installation screws, and the floor slab body is provided with a plurality of threaded holes corresponding to the supports and for installing the installation screws.

[0006] Optionally, one end of the bracket is fixedly connected with a hook for clamping the first square tube or the second square tube.

[0007] Optionally, the other end of the bracket is fixedly connected to a first foot plate, and the bottom ends of the oblique support rods are fixedly connected to a second foot plate, and the lower surfaces of the first foot plate and the second foot plate are located in the same horizontal plane.

[0008] Optionally, the folding mechanism includes rotating protrusions fixedly connected to both ends of the V-shaped bracket, the top end of the oblique support rod is provided with a rotating groove for the rotating protrusion to rotate, the top outer wall of the oblique support rod is fixedly sleeved with a clamping ring, the top end of the oblique support rod is also movably sleeved with a return spring with one end fixedly connected to the clamping ring, and the other end of the return spring is fixedly connected to a locking sleeve that covers the rotating protrusion and the rotating groove.

[0009] Optionally, the rotating protrusion and the rotating groove are provided with a rotating shaft which does not hinder the sliding of the locking sleeve.

[0010] Optionally, the bottom outer wall of the locking sleeve is fixedly sleeved with a plurality of anti-slip grooves arranged in a linear shape.

[0011] Optionally, both ends of the connector are fixedly connected with support blocks, and one end of the support block away from the connector is fixedly connected with an elastic clamping claw that clamps the bottom of the corresponding oblique support rod.

[0012] On the other hand, the present application provides a construction method of a formwork hanging device at a floor drop location, which is applied to a formwork hanging device at a floor drop location as described above, and comprises the following steps:

[0013] S1. When using the formwork hanging equipment at the floor drop, the first square tube, the second square tube and the diagonal square tube are connected by welding, which can not only effectively strengthen the overall strength of the hanging formwork system and improve the visual quality of the concrete at the drop, but also effectively speed up the construction progress and better ensure the quality of the project construction;

[0014] S2. When the bottom bracket mechanism of the first square tube and the second square tube is in use, it is only necessary to install the mounting screws in the corresponding screw holes on the floor plate body. During installation and removal, it is only necessary to remove and install one mounting screw, thereby avoiding the trouble of installing multiple screws on one bracket mechanism and the low construction efficiency;

[0015] S3. After the bracket mechanism is used, the locking sleeve at the connection between each oblique support rod and the V-shaped bracket is moved toward the clamping ring, and then the oblique support rod is rotated toward the vertical rod with the rotation axis as the center through the support of the rotating protrusion, so that the bottom of the oblique support rod can be clamped into the corresponding elastic clamping claw, and the volume of the bracket mechanism can be reduced at this time;

[0016] S4. When the bracket mechanism needs to be used again, it is only necessary to make the bottom of the inclined support rod disengage from the elastic clamping claw. At this time, the locking sleeve re-engages the rotating groove and the rotating protrusion through the elastic thrust of the reset spring, so that the bracket mechanism can be used normally.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] The present invention adopts the design of the first square tube, the second square tube, the first welding point, the diagonal square tube, the second welding point and the bracket mechanism. The first square tube and the second square tube are made of stainless steel for hanging formwork, which has high strength and good integrity, so that the height difference is not easily affected by the deformation of the formwork and the appearance of the concrete. The use of a hanging formwork support frame to fix the hanging formwork system is not only firm and reliable, but also avoids quality risks such as formwork running and eating. At the same time, its construction process is simple, the on-site construction is convenient, labor-saving, construction efficiency is high, and cost is saved, and it can effectively improve the construction quality;

[0019] Furthermore, the present invention utilizes the coordination of the folding mechanism, V-shaped bracket, oblique support rod and locking sleeve, so that the bracket mechanism can be quickly folded and stored and unfolded for use, which can not only effectively save storage space, but also facilitate transportation and reduce transportation costs. At the same time, the quick-expanding design can also make the installation and disassembly of the bracket mechanism faster, which can greatly shorten the construction period. And the construction personnel can arrange the hanging formwork support system more efficiently, reducing waiting time and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A structural schematic diagram of a formwork hanging device and a construction method for a floor lowering position of the present invention is provided;

[0021] Figure 2 for Figure 1 Schematic diagram of the connection structure of the middle bracket, the V-shaped bracket and the oblique support rod;

[0022] Figure 3 for Figure 2 Schematic diagram of the split structure;

[0023] Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0024] Figure numerals: 1. floor plate; 11. first square tube; 12. second square tube; 13. first welding point; 14. diagonal square tube; 15. second welding point; 2. bracket; 21. hook; 22. first foot plate; 3. V-shaped bracket; 31. vertical rod; 32. connector; 33. support block; 34. elastic clamp; 35. horizontal and vertical rods; 36. support; 37. mounting screw; 38. rotating protrusion; 4. diagonal support rod; 41. rotating groove; 42. rotating shaft; 43. snap ring; 44. return spring; 45. locking sleeve; 46. anti-slip pattern; 47. second foot plate. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0027] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example

[0032] like Figures 1 to 4 As shown, a formwork hanging device at the lowering point in a floor proposed by the present invention includes a floor plate body 1, and also includes: a plurality of parallel and opposite first square tubes 11 and second square tubes 12 installed on the floor plate body 1, wherein the first square tube 11 and the second square tube 12 are made of stainless steel, and the ends of the second square tube 12 and the first welding point 13 are connected by the first welding point 13, and the inner walls of the ends of each pair of second square tubes 12 and the first welding point 13 are provided with diagonal brace square tubes 14, and the diagonal brace square tubes 14 are used to improve the overall stability of the formwork support system. During the process of pouring concrete, the first square tube 11 and the second square tube 12 will be subjected to greater pressure, and if there is not enough support, they may be deformed or tilted. The diagonal brace square tubes 14 can prevent this from happening, ensuring that the first square tube 11 and the second square tube 12 do not displace or deform. The contact ends of the diagonal square tube 14, the second square tube 12 and the first welding point 13 are connected by the second welding point 15; multiple bracket mechanisms are arranged on the floor plate body 1 to support the first square tube 11 and the second square tube 12, and the bracket mechanisms are provided with a pair of folding mechanisms to reduce the volume of the bracket mechanisms.

[0033] Hanging formwork construction steps:

[0034] Step 1: First, set up the floor bottom formwork according to the design drawings and formwork construction plan, position and set up the formwork at the drop-down point according to the drawing requirements, and pop up the hanging formwork position line on the formwork surface.

[0035] Step 2: Then the floor slab reinforcement and beam reinforcement are tied according to the design drawings.

[0036] Step 3. Secondly, positioning and installation of the hanging formwork support mechanism: Place the hanging formwork support mechanism according to the hanging formwork position line. The support mechanism is placed 200mm at the corners and joints, with a spacing of no more than 500mm, and the diagonal braces are placed according to this requirement, and fixed to the formwork with steel nails at the bottom.

[0037] Step 4: Further, the hanging formwork system is installed after being manufactured according to the size, placed on the bracket mechanism and fixed with binding wire.

[0038] Step 5: After the on-site steel bars and formwork have been accepted, concrete can be poured. When pouring concrete, the method of pouring from low to high is adopted, first pouring the floor slab with low elevation, and then pouring the floor slab with higher elevation. It is strictly forbidden to step on the square tube of the hanging formwork during the pouring process. At the same time, it is necessary to check whether the hanging formwork is loose. If so, it needs to be adjusted and reinforced for the second time.

[0039] Further, the bracket mechanism includes a bracket 2 and a V-shaped bracket 3, one end of the bracket 2 is fixedly connected with a hook 21 for clamping the first square tube 11 or the second square tube 12, and the hook 21 is used to clamp the first square tube 11 or the second square tube 12. The bracket 2 and the V-shaped bracket 3 are fixedly connected, and oblique support rods 4 are provided at both ends of the bottom of the V-shaped bracket 3. A vertical rod 31 is fixedly connected to the V-shaped bracket 3, and a connector 32 is fixedly connected to the bottom end of the vertical rod 31. Both ends of the connector 32 are fixedly connected with support blocks 33, and one end of the support block 33 away from the connector 32 is fixedly connected with an elastic clamp 34 for clamping the bottom of the corresponding oblique support rod 4. The elastic clamp 34 is made of plastic, and its function is to allow the oblique support rod 4 to be quickly clamped into the elastic clamp 34, and also to be quickly removed from the elastic clamp 34. A horizontal and vertical rod 35 is fixedly connected between the connector 32 and the middle of the bottom end of the bracket 2, and a support 36 is provided on the horizontal and vertical rod 35. A mounting screw 37 is movably provided in the middle of the support 36. The mounting screw 37 is used to quickly install the bracket mechanism on the floor plate body 1. The floor plate body 1 is provided with a plurality of threaded holes corresponding to the support 36 and for the mounting screws 37 to be installed.

[0040] The other end of the bracket 2 is fixedly connected to the first foot plate 22, and the bottom ends of the oblique support rods 4 are fixedly connected to the second foot plates 47. The first foot plates 22 and the second foot plates 47 are pressed against the upper surface of the floor plate body 1, so that the bracket mechanism is stably placed on the floor plate body 1. At the same time, the lower surfaces of the first foot plates 22 and the second foot plates 47 are provided with rubber pads for anti-slip, and the lower surfaces of the first foot plates 22 and the second foot plates 47 can slide freely between the floor plate body 1. The lower surfaces of the first foot plates 22 and the second foot plates 47 are located in the same horizontal plane.

[0041] Furthermore, the folding mechanism includes a rotating protrusion 38 fixedly connected to both ends of the V-shaped bracket 3, a rotating groove 41 for the rotating protrusion 38 to rotate is provided at the top of the oblique support rod 4, and a rotating shaft 42 that does not hinder the sliding of the locking sleeve 45 is provided on the rotating protrusion 38 and the rotating groove 41, and the rotating shaft 42 supports the oblique support rod 4 to rotate on the rotating protrusion 38, and at the same time, the two ends of the rotating shaft 42 do not protrude from the outer wall of the oblique support rod 4, and the function is to ensure that the two ends of the rotating shaft 42 do not hinder the sliding of the locking sleeve 45 on the oblique support rod 4. The outer wall of the top end of the oblique support rod 4 is fixedly sleeved with a snap ring 43, and the top end of the oblique support rod 4 is also movably sleeved with a reset spring 44 with one end fixedly connected to the snap ring 43, and the reset spring 44 is so that when the oblique support rod 4 and the rotating protrusion 38 are on the same axis, the locking sleeve 45 will automatically clamp the rotating protrusion 38 and the rotating groove 41 through the elastic force of the reset spring 44. The other end of the return spring 44 is fixedly connected to a locking sleeve 45 that covers the rotating protrusion 38 and the rotating groove 41. The bottom outer wall of the locking sleeve 45 is fixedly provided with a plurality of anti-slip patterns 46 arranged in a linear shape. The anti-slip patterns 46 refer to a texture structure with protrusions or depressions formed on the locking sleeve 45 through a specific processing technology. The purpose is to enhance the friction of the surface of the object, thereby preventing sliding or slipping.

[0042] The present application provides a construction method for a hanging formwork device at a drop plate in a floor, such as Figure 1-Figure 4 As shown, the following steps are included:

[0043] S1. When using the formwork hanging equipment at the drop-down slab in the floor, the first square tube 11, the second square tube 12 and the diagonal square tube 14 are connected by welding, which can not only effectively strengthen the overall strength of the hanging formwork system and improve the visual quality of the concrete at the drop-down slab, but also effectively speed up the construction progress and better ensure the quality of the project construction.

[0044] S2. When the bottom bracket mechanism of the first square tube 11 and the second square tube 12 is in use, it is only necessary to install the mounting screws 37 in the corresponding screw holes on the floor plate body 1. During installation and disassembly, it is only necessary to disassemble and install one mounting screw 37, thereby avoiding the trouble of installing multiple screws on one bracket mechanism and the low construction efficiency.

[0045] S3. After the bracket mechanism is used, the locking sleeve 45 at the connection between each oblique support rod 4 and the V-shaped bracket 3 is moved toward the clamping ring 43, and then the oblique support rod 4 is rotated toward the vertical rod 31 with the rotating axis 42 as the center through the support of the rotating protrusion 38, so that the bottom of the oblique support rod 4 can be clamped into the corresponding elastic clamp 34, and the volume of the bracket mechanism can be reduced at this time.

[0046] S4. When the bracket mechanism needs to be used again, it is only necessary to make the bottom of the inclined support rod 4 disengage from the elastic clamp 34. At this time, the locking sleeve 45 re-engages the rotating groove 41 and the rotating protrusion 38 through the elastic thrust of the reset spring 44, so that the bracket mechanism can be used normally.

[0047] In this embodiment, when it is necessary to use the formwork hanging equipment at the lowering plate in the floor, such as Figure 1 As shown, by welding the first square tube 11, the second square tube 12 and the diagonal square tube 14, not only can the overall strength of the hanging formwork system be effectively strengthened, but also the visual quality of the concrete at the drop plate can be improved. Through this process, the construction progress can be effectively accelerated and the quality of the project construction can be better guaranteed. During the use of the bottom bracket mechanism of the first square tube 11 and the second square tube 12, it is only necessary to install the mounting screws 37 in the corresponding screw holes on the floor plate body 1, and then the first foot plate 22 at the bottom of the bracket 2 and the second foot plate 47 at the bottom of the diagonal support rod 4 are tightly pressed against the upper surface of the floor plate body 1, so that the bracket mechanism is firmly installed on the floor plate body 1 to support the first square tube 11 and the second square tube 12. In the process of disassembly and installation, only one mounting screw 37 needs to be disassembled and installed, avoiding the trouble caused by installing multiple screws on one bracket mechanism and the low construction efficiency.

[0048] When the bracket mechanism is used, Figure 2 As shown, the locking sleeve 45 at the connection between each oblique support rod 4 and the V-shaped bracket 3 is moved toward the snap ring 43, and the locking sleeve 45 is moved along the V-shaped bracket 3 and the oblique support rod 4 until the reset spring 44 is compressed to the limit. At this time, the locking sleeve 45 is completely disengaged from the rotation groove 41 and the rotation protrusion 38, and the oblique support rod 4 can be rotated toward the vertical rod 31 with the rotation axis 42 as the center through the support of the rotation protrusion 38. When the bottom of the oblique support rod 4 is against the corresponding elastic clamp 34, the bottom of the oblique support rod 4 can be pressed hard so that the bottom of the oblique support rod 4 is clamped into the corresponding elastic clamp 34, and the volume of the bracket mechanism can be reduced at this time. When the bracket mechanism needs to be used again, it is only necessary to make the bottom of the oblique support rod 4 disengage from the elastic clamp 34, and then the oblique support rod 4 is rotated with the rotation axis 42 as the center to be located on the same axis as the rotation protrusion 38, and at this time, the locking sleeve 45 can be re-clamped on the rotation groove 41 and the rotation protrusion 38 by the elastic thrust of the reset spring 44. As a result, the connection ends of the V-shaped bracket 3 and the oblique support rod 4 cannot rotate, and the bracket mechanism can now be used normally, which is quick and easy to operate.

[0049] The preferred embodiments of the present invention described above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A formwork hanging device for a floor slab, comprising a floor slab body (1), characterized in that: Also includes: A plurality of parallel and opposite first square tubes (11) and second square tubes (12) are installed on the floor plate body (1), the first square tube (11) and the second square tube (12) are made of stainless steel, the ends of the second square tube (12) and the first welding point (13) are connected by the first welding point (13), the inner walls of the ends of each pair of the second square tube (12) and the first welding point (13) are provided with a diagonal bracing square tube (14), and the contact ends of the diagonal bracing square tube (14) and the second square tube (12) and the first welding point (13) are connected by the second welding point (15); A plurality of support mechanisms are arranged on the floor plate body (1) for supporting the first square tube (11) and the second square tube (12), and the support mechanisms are provided with a pair of folding mechanisms for reducing the volume of the support mechanisms.

2. The formwork hanging device at the floor drop location according to claim 1 is characterized in that: The support mechanism comprises a support (2) and a V-shaped bracket (3), wherein the support (2) and the V-shaped bracket (3) are fixedly connected, and oblique support rods (4) are provided at both ends of the bottom of the V-shaped bracket (3), and a vertical rod (31) is fixedly connected to the V-shaped bracket (3), and a connecting head (32) is fixedly connected to the bottom end of the vertical rod (31), and a horizontal rod (35) is fixedly connected to the middle part of the bottom end of the connecting head (32) and the support (2), and a support (36) is provided on the horizontal rod (35), and a mounting screw (37) is movably provided in the middle part of the support (36), and a plurality of threaded holes corresponding to the support (36) and for mounting the mounting screws (37) are opened on the floor plate body (1).

3. The formwork hanging device at the floor drop location according to claim 2 is characterized in that: One end of the bracket (2) is fixedly connected with a hook (21) for clamping the first square tube (11) or the second square tube (12).

4. The formwork hanging device at the floor drop location according to claim 2 is characterized in that: The other end of the bracket (2) is fixedly connected to a first foot plate (22), and the bottom ends of the oblique support rods (4) are fixedly connected to second foot plates (47), and the lower surfaces of the first foot plate (22) and the second foot plate (47) are located in the same horizontal plane.

5. The formwork hanging device at the floor drop location according to claim 2 is characterized in that: The folding mechanism comprises a rotating protrusion (38) fixedly connected to both ends of the V-shaped bracket (3); the top end of the inclined support rod (4) is provided with a rotating groove (41) for the rotating protrusion (38) to rotate; the outer wall of the top end of the inclined support rod (4) is fixedly sleeved with a clamping ring (43); the top end of the inclined support rod (4) is also movably sleeved with a return spring (44) with one end fixedly connected to the clamping ring (43); the other end of the return spring (44) is fixedly connected to a locking sleeve (45) sleeved with the rotating protrusion (38) and the rotating groove (41).

6. The formwork hanging device at the floor drop location according to claim 5 is characterized in that: The rotating protrusion (38) and the rotating groove (41) are provided with a rotating shaft (42) which does not hinder the sliding of the locking sleeve (45).

7. The formwork hanging device at the floor drop location according to claim 5 is characterized in that: The outer wall of the bottom of the locking sleeve (45) is fixedly sleeved with a plurality of anti-slip grooves (46) arranged in a linear shape.

8. The device for hanging formwork at the floor drop-down position according to claim 2 is characterized in that: Both ends of the connecting head (32) are fixedly connected to support blocks (33), and one end of the support block (33) away from the connecting head (32) is fixedly connected to an elastic clamping claw (34) for clamping the bottom of the corresponding oblique support rod (4).

9. A construction method for a formwork hanging device at a floor drop location, applied to a formwork hanging device at a floor drop location as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: S1. When using the formwork hanging device at the floor drop-down position, the first square tube (11), the second square tube (12) and the diagonal bracing square tube (14) are connected by welding, which can not only effectively strengthen the overall strength of the formwork hanging system and improve the visual quality of the concrete at the floor drop-down position, but also effectively speed up the construction progress and better ensure the quality of the engineering construction; S2. When the bottom bracket mechanism of the first square tube (11) and the second square tube (12) is in use, it is only necessary to install the mounting screws (37) in the corresponding screw holes on the floor plate body (1). During the installation and removal process, it is only necessary to remove and install one mounting screw (37), thereby avoiding the trouble of installing multiple screws on one bracket mechanism and the low construction efficiency; S3. After the support mechanism is used, the locking sleeve (45) at the connection between each oblique support rod (4) and the V-shaped bracket (3) is moved toward the clamping ring (43), and then the oblique support rod (4) is rotated toward the vertical rod (31) with the rotation axis (42) as the center through the support of the rotating protrusion (38), so that the bottom of the oblique support rod (4) can be clamped into the corresponding elastic clamping claw (34), and the volume of the support mechanism can be reduced at this time; S4. When the support mechanism needs to be used again, it is only necessary to make the bottom of the oblique support rod (4) disengage from the elastic clamp (34). At this time, the locking sleeve (45) re-engages the rotating groove (41) and the rotating protrusion (38) through the elastic thrust of the return spring (44), so that the support mechanism can be used normally.

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