Steel formwork supporting mechanism for concrete retaining wall construction

Abstract

The utility model discloses a steel formwork supporting mechanism for concrete retaining wall construction, and belongs to the field of building equipment. Comprising triangular supports, screw assemblies and the like, and the triangular supports are installed on connecting screws through end nuts; end circular pipes are welded at the tail ends of the two ends; the transverse steel pipes are mounted on the end circular pipes through the pipeline fixing connecting pieces; the upper-layer steel pipe fastener and the lower-layer steel pipe fastener are used for locking the upper and lower parts of the retaining wall steel formwork; each screw assembly is arranged between a steel pipe of an upper-layer steel pipe fastener and a transverse steel pipe; the triangular support is further provided with a fastening device used for locking the retaining wall steel formwork and a stopping hook piece used for preventing the retaining wall steel formwork from moving upwards in the wall solidification process. The concrete retaining wall can be conveniently installed and detached layer by layer, the work safety of detaching and installing the retaining wall steel formwork is high, in addition, the supporting height of the screw rod assembly can be adjusted, construction of steel formworks of different specifications is facilitated, and the supporting reliability is good.

Description

Technical Field

[0001] The utility model relates to the field of construction equipment, in particular to a steel formwork supporting mechanism for concrete retaining wall construction. Background Art

[0002] Retaining wall refers to a structure that supports the roadbed fill or hillside soil and prevents the fill or soil from deforming and becoming unstable. Concrete retaining wall is made of cast concrete. The traditional reinforced concrete retaining wall construction method is cast on site. In the early stage of this construction, the retaining wall panels need to be erected in a specific place, and then the concrete is poured into the designated place to form it.

[0003] Conventional wall panels are usually fixed by pre-embedding one or more rows of fixed steel bars in the concrete wall casting space, and then fixing the wall panels by combining internal support steel bars and transverse screws. This method has two shortcomings: first, when pouring concrete into the wall panels, there are stones mixed in the concrete. If a larger stone happens to hit the internal support steel bars, the steel bars may be broken or bent, which is not conducive to the fixation of the wall panels; second, since the concrete retaining wall is poured layer by layer from low to high, if the retaining wall at the construction site is high, when the outer wall panels need to be removed after the high-rise concrete layer solidifies, it is often necessary to manually tie a safety rope to perform aerial work to remove the retaining wall panels. Since the workers who are dismantling have no standing point, the operation is very inconvenient. Therefore, a steel formwork support mechanism for concrete retaining wall construction that is safer and easier to construct is designed to solve the problems existing in the prior art. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a steel formwork support mechanism for concrete retaining wall construction, which is convenient for the layer-by-layer installation and disassembly of the concrete retaining wall, and the work safety of disassembling and installing the retaining wall steel formwork is high. In addition, the screw assembly also has an adjustable support height, which is convenient for the construction of steel formworks of different specifications, and the support reliability is also good.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a steel formwork support mechanism for concrete retaining wall construction, including a triangular bracket, an upper steel pipe fastener, a lower steel pipe fastener, a transverse steel pipe and a screw assembly, the number of the triangular brackets is multiple, each of the triangular brackets is installed on the connecting screw through an end nut, the connecting screw is installed in the connecting nut, the end of the connecting nut is welded to a connecting rod, and the connecting rod is welded to the foundation steel bar in the concrete; the end of the longitudinal rod of each triangular bracket is welded with an end round tube; the transverse steel pipe is installed on the end round tube through a pipeline fixing connector; the upper steel pipe fastener includes two upper steel pipes and multiple upper pipe clamps; the two upper steel pipes are locked in by nuts and upper pipe clamps On the upper locking screw, each of the locking screws is welded to the inner wall of the retaining wall steel formwork through a connecting piece; the lower steel pipe fastener includes two lower steel pipes and multiple lower pipe clamps; the two lower steel pipes are locked on the lower locking screws through nuts and lower pipe clamps, and each of the lower locking screws is welded to the inner wall of the retaining wall steel formwork through a connecting piece; the number of the screw assemblies is consistent with the triangular bracket, and the upper screw of each screw assembly is installed on the steel pipe of the upper steel pipe fastener through a pipe fixing connector; the lower screw of the screw assembly is installed on the transverse steel pipe through a pipe fixing connector; the triangular bracket is also provided with a fastening device for locking the retaining wall steel formwork and a blocking hook for preventing the retaining wall steel formwork from moving upward during the wall solidification process.

[0006] Preferably, the fastening device includes a fixing seat, a fastening screw, a locking tube block and a locking nut; the fixing seat is welded to the longitudinal rod of the triangular bracket, one end of the fastening screw is fixed to the steel formwork of the retaining wall and the other end is fixed to the fixing seat; the locking nut locks the locking tube block to the two lower steel pipes.

[0007] Preferably, the blocking hook member includes an end screw rod installed on the longitudinal rod of the triangular bracket, and an end hook member installed on the end screw rod.

[0008] Preferably, an anti-slip pad is provided between the triangular bracket and the wall.

[0009] Preferably, there are a plurality of transverse steel pipes, wherein the transverse steel pipes are connected to each other by short steel pipes and steel pipe connectors.

[0010] Preferably, the end of the end circular tube is provided with a blocking ring device to prevent the pipeline fixing connection piece from sliding and falling apart.

[0011] Preferably, it also includes a monitoring device, which includes a laser sensor, a controller, a display module and an alarm module arranged on the inner wall of the retaining wall steel formwork; the output end of the laser sensor is electrically connected to the controller; the output end of the controller is electrically connected to the display module and the alarm module respectively.

[0012] Preferably, the number of the laser sensors is at least two and they are arranged at both ends of the inner side wall of the retaining wall steel formwork.

[0013] Preferably, the number of the laser sensors is at least two and they are arranged on two sides of the retaining wall steel formwork.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is convenient for the installation and disassembly of the concrete retaining wall layer by layer, and the work safety of disassembling and installing the retaining wall steel formwork is high. In addition, the screw rod assembly also has an adjustable support height, which is convenient for the construction of steel formworks of different specifications, and the reliability of the support is also good. In addition, compared with the traditional retaining wall construction, the traditional retaining wall construction will embed one or more rows of fixed steel bars in the concrete wall casting space, and then use the inner support steel bars and the transverse screw rods to fix the wall panels. This method manually cuts off the excess steel bars after the steel formwork is removed in the later stage, while the utility model screws the screw into the embedded nut, and then fixes the steel formwork through the screw. When the steel formwork is removed in the later stage, the screw can be removed and reused. Compared with the traditional construction method, this can avoid the waste of steel bars and reduce the material cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Left view of

[0017] Figure 3 for Figure 1 A partial enlarged view of point a in the middle;

[0018] Figure 4 for Figure 1 A partial enlarged view of point b in the middle;

[0019] Figure 5 This is a schematic diagram of the structure of the monitoring device of the utility model;

[0020] Figure 6 This is a reference diagram of the first layer of the steel formwork support mechanism for concrete retaining wall construction of the utility model;

[0021] Figure 7 for Figure 6 Left view of

[0022] Figure 8 for Figure 6 Partial rear view. DETAILED DESCRIPTION

[0023] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] like Figures 1 to 4As shown, the utility model is a steel formwork support mechanism for concrete retaining wall construction, comprising a triangular bracket 1, an upper steel pipe fastener 2, a lower steel pipe fastener 3, a transverse steel pipe 4 and a screw assembly 5, wherein the number of triangular brackets 1 is multiple, and the number used is determined according to the length of the erection site, each triangular bracket 1 is installed on a connecting screw 12 through an end nut, the connecting screw 12 is installed in a connecting nut 13, the end of the connecting nut 13 is welded to a connecting rod 14, and the connecting rod 14 is welded to the foundation steel bar in the concrete; wherein the connecting nut 13 and the connecting rod 14 are pre-connected before the concrete is poured. The connecting rod 14 is welded, and then the connecting rod 14 is welded to the foundation steel bars in each layer of concrete. The connecting nut 13 is set at 10-20cm at the top of each layer for example, for the installation of the triangular bracket 1 of the next layer; the end of the longitudinal rod of each triangular bracket 1 is welded with an end round tube 11. In order to make the connection of each component more stable, the end of the end round tube 11 of the utility model is provided with a blocking ring device 111 to prevent the pipeline fixing connection from sliding and falling apart. There are multiple transverse steel pipes 4 of the utility model, among which the transverse steel pipes 4 are connected to each other by short steel pipes and steel pipe connectors, and the number of them used is determined according to the length of the construction site. Increase or decrease; the transverse steel pipe 4 is installed on the end round pipe 11 through a pipeline fixing connector; the upper steel pipe fastener 2 includes two upper steel pipes 21 and a plurality of upper clamping pipe fittings 22; the two upper steel pipes 21 are locked on the upper locking screw 20 through nuts and upper clamping pipe fittings 22, and each locking screw 20 is welded to the inner wall of the retaining wall steel formwork through a connecting piece; the lower steel pipe fastener 3 includes two lower steel pipes 31 and a plurality of lower clamping pipe fittings 32; the two lower steel pipes 31 are locked on the lower locking screw 30 through nuts and lower clamping pipe fittings 32, and each lower locking screw 30 is welded to the inner wall of the retaining wall steel formwork through a connecting piece; the screw The number of rod assemblies 5 is consistent with that of the triangular bracket 1. The upper screw of each screw assembly 5 is installed on the steel pipe of the upper steel pipe fastener 2 through a pipe fixing connector; the lower screw of the screw assembly 5 is installed on the transverse steel pipe 4 through a pipe fixing connector. The screw assembly 5 of the utility model can be adjusted according to the height between the end circular tube 11 and the upper steel pipe 21 to match the retaining wall steel formwork of different heights. When adjusting, only the upper screw and / or the lower screw need to be adjusted; the triangular bracket 1 is also provided with a fastening device 7 for locking the retaining wall steel formwork and a blocking hook 8 for preventing the retaining wall steel formwork from moving upward during the wall solidification process.

[0025] like Figure 3As shown, the fastening device 7 of the utility model includes a fixing seat 71, a fastening screw 72, a locking tube block 73 and a locking nut 74; the fixing seat 71 is welded to the longitudinal rod of the triangular bracket 1, one end of the fastening screw 72 is fixed to the retaining wall steel formwork and the other end is fixed to the fixing seat 71; the locking nut 74 locks the locking tube block 73 to the two lower steel pipes 31. The fastening device 7 of the utility model is used to lock the triangular bracket 1 with the retaining wall steel formwork, so that the retaining wall steel formwork is more stable and is conducive to subsequent support.

[0026] like Figure 3 As shown, the blocking hook 8 of the utility model includes an end screw 81 installed on the longitudinal rod of the triangular bracket 1, and an end hook 82 installed on the end screw 81. The end hook 82 is clamped on the lower end extension plate of the retaining wall steel formwork by rotating it. Even if the concrete expands after solidification, since one end of the end hook 82 is fixed to the triangular bracket 1, the retaining wall steel formwork can be prevented from moving upward.

[0027] In order to better fix the tripod bracket 1 on the wall and avoid slipping, an anti-skid gasket (not marked in the drawing) is provided between the tripod bracket 1 and the wall. The anti-skid gasket of the utility model is made of rubber. By adding the anti-skid gasket, the tripod bracket 1 is better fixed on the wall.

[0028] Since the concrete inside the retaining wall steel formwork will expand during the later solidification process, in order to facilitate the observation of its expansion degree at any time, the utility model is also provided with a monitoring device 9, such as Figure 5 As shown, the monitoring device 9 of the utility model comprises a laser sensor 91, a controller 92, a display module 93 and an alarm module 94 arranged on the inner side wall of the retaining wall steel formwork; the output end of the laser sensor 91 is electrically connected to the controller 92; the output end of the controller 92 is electrically connected to the display module 93 and the alarm module 94 respectively. There are at least two laser sensors 91 arranged on two sides of the retaining wall steel formwork. When installed, the two sensors should be able to shoot at each other without any obstacles in between. When the steel formwork expands beyond a preset value, the sensor will be blocked, and the alarm will be activated. The laser sensor 91, controller 92 and other monitoring devices of the utility model are selected from the market. They can be used as long as they meet the needs. Therefore, their principles and circuit diagrams are not repeated. By adding a detection device 9, the laser sensor 91 is used to detect the distance between the concrete and the retaining wall steel formwork after expansion. If the detected distance exceeds the set range, the detected signal is transmitted to the controller 92. After receiving the data, the controller 92 transmits the signal to the alarm module 94 and displays it on the display module 93 to remind the detection personnel to observe and take measures. By adding a monitoring device 9, the changes in the later concrete solidification process can be automatically detected, which greatly improves the construction of accidents.

[0029] The specific working principle of the utility model is as follows: The utility model is particularly suitable for pouring higher retaining walls, and the construction method is as follows: construct the first layer, refer to Figures 6 to 8 As shown, before constructing the first layer, it is necessary to lay the foundation first. The foundation of this layer is the part with the embedded nuts at the bottom. The connecting nuts 13 and the connecting rods 14 are welded in advance, and then the connecting rods 14 are welded to the foundation steel bars in the concrete of this layer. After the steel formwork of the retaining wall is erected and stabilized, the concrete is poured. After the concrete of the foundation layer is completely dry and solid, the concrete of the second layer of the retaining wall is poured. At this time, Figure 1 to Figure 2 As shown, the triangular bracket 1 is installed on the connecting screw 12 through the end nut, and then the upper steel pipe fastener 2, the lower steel pipe fastener 3, the horizontal steel pipe 4 and the screw assembly 5 are installed. The installation of all components is completed as shown in FIG. Figure 1 to Figure 2 After being shown, the second layer of concrete can be poured. Similarly, when the concrete solidification time is reached, the retaining wall steel formwork and the external structure can be dismantled. At this time, due to the addition of a triangular bracket 1, workers can stand on the triangular bracket 1 to dismantle the retaining wall steel formwork, so the safety of the dismantling work is also better. The subsequent pouring and dismantling work can be carried out with reference to the second layer.

[0030] The above is a detailed description of the implementation methods of the utility model in conjunction with the accompanying drawings, but the utility model is not limited to the described implementation methods. For those skilled in the art, without departing from the principle and spirit of the utility model, various changes, modifications, substitutions and variations are made to these implementation methods, which still fall within the scope of protection of the utility model. Finally, it should be noted that the contents not described in detail in the specification belong to the prior art known to professional and technical personnel in the field, and those skilled in the art can realize them without creative work, so they will not be repeated here.

Claims

1. A steel formwork support mechanism for concrete retaining wall construction, comprising a triangular support (1), an upper steel pipe fastener (2), a lower steel pipe fastener (3), a transverse steel pipe (4) and a screw assembly (5), characterized in that: There are a plurality of triangular brackets (1), each of which is mounted on a connecting screw (12) via an end nut, the connecting screw (12) being mounted in a connecting nut (13), the end of the connecting nut (13) being welded with a connecting rod (14), the connecting rod (14) being welded to the foundation steel bar in the concrete; a terminal round tube (11) is welded to the end of the longitudinal rod of each triangular bracket (1); the transverse steel pipe (4) is mounted on the terminal round tube (11) via a pipe fixing connector; the upper steel pipe fastener (2) comprises two upper steel pipes (21) and a plurality of upper pipe clamping members (22); the two upper steel pipes (21) are locked on an upper locking screw (20) via a nut and an upper pipe clamping member (22), each of which is welded to the retaining wall steel formwork via a connecting piece. The lower steel pipe fastener (3) comprises two lower steel pipes (31) and a plurality of lower pipe clamps (32); the two lower steel pipes (31) are locked on the lower locking screws (30) through nuts and lower pipe clamps (32), and each of the lower locking screws (30) is welded to the inner wall of the retaining wall steel formwork through a connecting piece; the number of the screw assemblies (5) is consistent with the number of the triangular brackets (1), and the upper screw of each screw assembly (5) is installed on the steel pipe of the upper steel pipe fastener (2) through a pipe fixing connector; the lower screw of the screw assembly (5) is installed on the transverse steel pipe (4) through a pipe fixing connector; the triangular bracket (1) is also provided with a fastening device (7) for locking the retaining wall steel formwork and a blocking hook (8) for preventing the retaining wall steel formwork from moving upward during the wall solidification process.

2. The steel formwork support mechanism for concrete retaining wall construction according to claim 1, characterized in that: The fastening device (7) comprises a fixing seat (71), a fastening screw (72), a locking tube block (73) and a locking nut (74); the fixing seat (71) is welded to the longitudinal rod of the triangular bracket (1); one end of the fastening screw (72) is fixed to the retaining wall steel formwork and the other end is fixed to the fixing seat (71); the locking nut (74) locks the locking tube block (73) to the two lower steel pipes (31).

3. The steel formwork support mechanism for concrete retaining wall construction according to claim 1, characterized in that: The blocking hook member (8) comprises an end screw rod (81) mounted on the longitudinal rod of the triangular bracket (1), and an end hook member (82) mounted on the end screw rod (81).

4. The steel formwork support mechanism for concrete retaining wall construction according to claim 1, characterized in that: An anti-slip pad is also provided between the triangular bracket (1) and the wall.

5. The steel formwork support mechanism for concrete retaining wall construction according to claim 1, characterized in that: There are a plurality of transverse steel pipes (4), wherein the transverse steel pipes (4) are connected to each other by short steel pipes and steel pipe connectors.

6. The steel formwork support mechanism for concrete retaining wall construction according to claim 1, characterized in that: The end of the end circular tube (11) is provided with a blocking ring device (111) for preventing the pipeline fixing connection piece from sliding and falling apart.

7. The steel formwork support mechanism for concrete retaining wall construction according to claim 1, characterized in that: The invention also comprises a monitoring device (9), which comprises a laser sensor (91), a controller (92), a display module (93) and an alarm module (94) arranged on the inner side wall of the retaining wall steel formwork; the output end of the laser sensor (91) is electrically connected to the controller (92); and the output end of the controller (92) is electrically connected to the display module (93) and the alarm module (94), respectively.

8. The steel formwork support mechanism for concrete retaining wall construction according to claim 7, characterized in that: The number of the laser sensors (91) is at least two and is arranged on two sides of the retaining wall steel formwork.

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