A concrete retaining wall casting template installation fixing structure and construction method thereof

Abstract

The present invention relates to the field of pavement engineering technology, and in particular to a concrete retaining wall casting template installation and fixing structure and a construction method thereof, comprising a plurality of template devices evenly distributed and fitted from left to right, the template device comprising two casting plates symmetrically distributed front and back, the two casting plates being in a V-shaped structure with openings facing each other, the facing ends of the two casting plates being connected to two connecting mechanisms distributed up and down, and the connecting mechanisms located on the lower side being connected to two rectangular plates symmetrically distributed left and right and having circular through holes. The two locking screws used in the present invention can further strengthen the connection strength of multiple connected template devices at the same time, and can simultaneously perform overall locking and limiting on multiple connected template devices and two fixing devices, thereby increasing the stability of the casting space composed of multiple template devices and two fixing devices.

Description

Technical Field

[0001] The invention relates to the technical field of pavement engineering, and in particular to a concrete retaining wall casting template installation fixing structure and a construction method thereof. Background Art

[0002] Concrete retaining walls are an important part of roadbed and pavement engineering. Their design must fully consider factors such as geological conditions, construction environment and long-term maintenance to ensure the safety and durability of the project.

[0003] During the pouring of concrete retaining walls, steel formworks are usually required for reinforcement. Steel formworks can withstand the pressure during concrete pouring, are not easily deformed, and can be reused many times, thereby reducing construction costs. At the same time, steel formworks are usually designed to be modular, which is convenient for quick assembly and disassembly, which helps to speed up the construction progress. However, when assembling concrete retaining walls, two adjacent casting formworks are usually connected by multiple bolts. The assembly steps are repetitive and cumbersome. After the casting formworks are assembled, in order to avoid deformation of the bottom of the casting formworks or separation of two adjacent casting formworks, multiple casting formworks need to be supported from the outside, thereby increasing the consumption of manpower and material resources. Summary of the invention

[0004] Based on this, it is necessary to provide a concrete retaining wall casting formwork installation fixing structure and a construction method thereof, aiming to solve the problems generated during the installation and construction of the existing concrete retaining wall casting formwork.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a concrete retaining wall casting formwork installation and fixing structure, comprising: a plurality of formwork devices evenly distributed and fitted from left to right, the formwork device comprising two casting plates symmetrically distributed front and back, the two casting plates are V-shaped structures and the openings are back to back, the back ends of the two casting plates are connected to two connecting mechanisms distributed up and down, and the connecting mechanism located on the lower side is connected to two rectangular plates symmetrically distributed left and right and with circular through holes.

[0006] It also includes a plug-in device, which is provided in multiple numbers and is respectively located between two adjacent left and right casting plates. The plug-in device includes a plug-in rod connected to four connecting mechanisms on the two adjacent left and right casting plates at the same time, and a connecting through hole is opened on the plug-in rod.

[0007] It also includes a fixing device, which is provided with two fixing devices and is symmetrically distributed on the left and right. The fixing device is connected to the template device located at the outermost side. The fixing device includes two fixing mechanisms that are symmetrically distributed front to back and connected to the template device located at the outermost side. The two fixing mechanisms are commonly connected to a distance adjustment mechanism, and a compensation mechanism is connected between the two fixing mechanisms.

[0008] The fixing mechanism includes a positioning plate tightly attached to the end of the casting plate located at the outermost side, and the end of the positioning plate away from the compensation mechanism is connected to two upper and lower distributed limit branches, and the limit branch chain located on the lower side is connected to a clamping plate, and the opposite end of the positioning plate located on the rear side is provided with a connecting groove, and the opposite end of the positioning plate located on the front side is integrally formed with a connecting protrusion.

[0009] Two locking screws symmetrically distributed front and back are connected between the two fixing devices located on the left and right sides. The locking screws simultaneously pass through two clamping plates, a plurality of rectangular plates and a plurality of connecting through holes on the same side.

[0010] Preferably, the template device further comprises a plurality of adjusting mechanisms evenly distributed from left to right and simultaneously connected to the two connecting mechanisms located on the upper side, and a pushing plate and a locking mechanism are commonly mounted on the plurality of adjusting mechanisms.

[0011] Preferably, the connection mechanism comprises a connection plate installed on the casting plate, and both left and right ends of the connection plate are integrally formed with splicing plates, the two splicing plates are distributed up and down, and a splicing through hole is opened in the middle of the splicing plate.

[0012] Preferably, the four connecting plates on the two adjacent casting plates are opposite to each other, the two splicing plates at the proximal ends of the two adjacent connecting plates are stacked and fitted up and down, and the four splicing through holes on the four splicing plates are simultaneously plugged into and matched with the corresponding plug rods.

[0013] Preferably, the distance adjusting mechanism comprises two rectangular blocks respectively installed at one end of the two positioning plates away from the casting plate, and a distance adjusting rod is slidably connected between the two rectangular blocks. A plurality of evenly distributed distance adjusting through holes are provided on the distance adjusting rod at two positions close to the two rectangular blocks, and a locking rod is slidably connected at the upper end of the rectangular block, and the locking rod is plugged into and matched with any one of the distance adjusting through holes.

[0014] Preferably, the compensation mechanism includes a plurality of compensation plates evenly distributed from front to back, a snap-in groove is provided at the front end of the compensation plate, a snap-in protrusion is installed at the rear end of the compensation plate, the snap-in protrusion between two adjacent compensation plates is snap-fitted with the snap-in groove, the snap-in protrusion of the compensation plate located on the rearmost side is snap-fitted with the connecting groove on the corresponding positioning plate, and the snap-in groove of the compensation plate located on the frontmost side is snap-fitted with the connecting protrusion on the corresponding positioning plate.

[0015] Preferably, the limiting branch chain includes a limiting plate installed on the positioning plate, the limiting plate is located above the corresponding splicing plate on the outermost side, a limiting rod is inserted in the middle of the limiting plate, and the limiting rod is plugged into and matched with the corresponding splicing through hole.

[0016] Preferably, the adjustment mechanism includes two square plates respectively installed on the upper ends of the front and rear connecting plates, and an adjustment rod is connected to the middle parts of the two square plates through which they slide together. The adjustment rod is fixedly connected to the pushing plate, and a plurality of adjustment holes evenly distributed from front to back are opened on the adjustment rod.

[0017] Preferably, the locking mechanism includes a strip plate arranged above the casting plate located on the rear side, and a plurality of positioning rods evenly distributed from left to right are installed at the lower end of the strip plate. The positioning rods slide through the corresponding square plate located on the rear side and are plugged into and matched with any one of the adjustment holes.

[0018] In addition, the present invention also provides a construction method for installing a fixed structure of a concrete retaining wall casting formwork, which specifically includes the following steps: S1: selecting multiple formwork devices and transporting them to the construction location, and then adjusting the spacing between the two casting plates of the formwork device through an adjustment mechanism and a clamping mechanism.

[0019] S2: Then select two formwork devices to fit closely together, and the four connecting mechanisms on the two adjacent casting plates on the front left and right sides are closely together, and then the plug-in rod is plugged into the four connecting mechanisms that are closely together, and similarly, another plug-in rod is plugged into the four connecting mechanisms that are closely together on the rear side.

[0020] S3: Repeat step S2 until the selected multiple template devices are spliced ​​together.

[0021] S4: sequentially adjust the compensation distances of the two compensation mechanisms, place one compensation mechanism between the two fixing mechanisms, and then lock and limit the mechanism through the distance adjustment mechanism, and repeat this step to obtain two adjusted fixing devices.

[0022] S5: Connect the two side fixing devices to the two outermost formwork devices respectively, and then connect the two locking screws to the two fixing devices and multiple formwork devices in turn, and then pour the concrete. After the concrete solidifies, release the locking screws, and then separate the two fixing devices and multiple formwork devices from the concrete retaining wall, and the construction is completed.

[0023] In summary, the present invention includes the following beneficial effects: 1. The connection between the multiple template devices adopted by the present invention can be quickly connected only through a plug-in device, which effectively avoids the operation of connecting adjacent casting templates through multiple bolts and improves the efficiency of splicing multiple casting templates.

[0024] 2. The two locking screws adopted in the present invention can further strengthen the connection strength of multiple connected formwork devices at the same time, and can simultaneously lock and limit the multiple connected formwork devices and two fixing devices as a whole, thereby increasing the stability of the casting space composed of the multiple formwork devices and the two fixing devices, and the locking screws are located at the lower side, which can effectively improve the supporting strength of the bottom of the multiple formwork devices for the concrete, and there is no need to support and limit the multiple formwork devices from the outside, thereby reducing the consumption of manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of the present invention at a first viewing angle is shown.

[0027] Figure 2 A schematic diagram of the three-dimensional structure of the present invention from a second viewing angle is shown.

[0028] Figure 3 A front view of the present invention is shown.

[0029] Figure 4 Shows Figure 3 Sectional view of AA.

[0030] Figure 5 Shows Figure 3 Cross-sectional view of BB.

[0031] Figure 6 The schematic diagram of the structure of the template device and the plug-in device of the present invention is shown.

[0032] Figure 7 A schematic structural diagram of the fixing device of the present invention is shown.

[0033] The above drawings include the following reference numerals: 1. formwork device; 11. casting plate; 12. connection mechanism; 121. connection plate; 122. splicing plate; 123. splicing through hole; 13. rectangular plate; 14. adjustment mechanism; 141. square plate; 142. adjustment rod; 143. adjustment hole; 15. pushing plate; 16. positioning mechanism; 161. strip plate; 162. positioning rod; 2. plug-in device; 21. plug-in rod; 22. Connecting through hole; 3. Fixing device; 31. Fixing mechanism; 311. Positioning plate; 312. Limiting branch chain; 3121. Limiting plate; 3122. Limiting rod; 313. Clamping plate; 32. Distance-adjusting mechanism; 321. Rectangular block; 322. Distance-adjusting rod; 323. Distance-adjusting through hole; 324. Clamping rod; 33. Compensation mechanism; 331. Compensation plate; 332. Clamping protrusion; 333. Clamping groove; 4. Locking screw. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0035] See also Figure 1-Figure 4 A concrete retaining wall casting formwork installation and fixing structure includes a plurality of formwork devices 1 evenly distributed and fitted from left to right, the formwork device 1 includes two casting plates 11 symmetrically distributed front and back, the two casting plates 11 are V-shaped structures with openings facing back to back, and the opposite ends of the two casting plates 11 are connected to two connecting mechanisms 12 distributed up and down, and the connecting mechanisms 12 include connecting plates 121 installed on the casting plates 11.

[0036] See also Figure 1 , Figure 4 , Figure 5 and Figure 6 The template device 1 also includes a plurality of adjustment mechanisms 14 evenly distributed from left to right and simultaneously connected to the two connecting mechanisms 12 located on the upper side, and a pushing plate 15 and a locking mechanism 16 are commonly installed on the plurality of adjustment mechanisms 14.

[0037] During the specific work, a plurality of casting plates 11 are selected and transported to the construction site, and then the plurality of casting plates 11 are connected symmetrically front to back in pairs through the cooperation of the adjusting mechanism 14 and the locking mechanism 16 .

[0038] See also Figure 1 , Figure 4 and Figure 6 The adjustment mechanism 14 includes two square plates 141 respectively installed on the front and rear connecting plates 121. An adjustment rod 142 is slidably connected through the middle of the two square plates 141. The adjustment rod 142 is fixedly connected to the pushing plate 15. A plurality of adjustment holes 143 evenly distributed from front to back are opened on the adjustment rod 142.

[0039] See also Figure 1 , Figure 4 and Figure 6 The locking mechanism 16 includes a strip plate 161 arranged above the casting plate 11 located at the rear side, and a plurality of positioning rods 162 evenly distributed from left to right are installed at the lower end of the strip plate 161. The positioning rods 162 slide through the corresponding square plate 141 located at the rear side and are plugged into any one of the adjustment holes 143.

[0040] In the specific operation, during the front-to-back symmetrical connection of the two casting plates 11, the two casting plates 11 are first distributed relatively front to back. If a steel cage is needed in the concrete retaining wall, the two casting plates 11 are respectively placed on both sides of the steel cage, and then the pushing plate 15 is pushed. The pushing plate 15 is subjected to force and drives the multiple adjusting rods 142 to move in the square plate 141 at the front side toward the square plate 141 at the rear side. According to the thickness of the concrete retaining wall to be cast, the adjusting holes 143 at the corresponding positions on the adjusting rods 142 are pushed into the square plate 141 at the rear side, and then the strip plates 161 are moved to the multiple adjusting rods 142 at the rear side. The strip plate 161 simultaneously inserts the plurality of positioning rods 162 into the plurality of corresponding square plates 141 and engages with the corresponding adjusting holes 143 to realize the function of limiting the moved adjusting rods 142. At this time, the rear end of the pushing plate 15 is close to the front end of the square plate 141 on the front side, thereby realizing the function of limiting the two casting plates 11 and determining the distance between the two casting plates 11, effectively improving the efficiency of adjusting and positioning the distance between the two casting plates 11, and repeating this step to connect the plurality of casting plates 11 symmetrically in pairs.

[0041] See also Figure 6 The left and right ends of the connecting plate 121 are integrally formed with splicing plates 122 , the two splicing plates 122 are distributed up and down, and a splicing through hole 123 is opened in the middle of the splicing plate 122 .

[0042] See also Figure 1 and Figure 6 The concrete retaining wall casting template installation and fixing structure also includes a plug-in device 2, which is provided with multiple plug-in devices 2 and is respectively located between two adjacent casting plates 11 on the left and right. The plug-in device 2 includes a plug-in rod 21 that is simultaneously connected to the four connecting mechanisms 12 on the two adjacent casting plates 11 on the left and right, and a connecting through hole 22 is opened on the plug-in rod 21.

[0043] See also Figure 1 , Figure 5 and Figure 6 The four connecting plates 121 on the two adjacent casting plates 11 are opposite to each other, and the two splicing plates 122 at the proximal ends of the two adjacent connecting plates 121 are stacked and fitted up and down, and the four splicing through holes 123 on the four splicing plates 122 are simultaneously plugged and matched with the corresponding plug rods 21.

[0044] During the specific work, two groups of symmetrically connected casting plates 11 are selected, and the two groups of symmetrically connected casting plates 11 are aligned and pressed together, the ends of the two casting plates 11 on the same side are pressed together and the four connecting plates 121 on the two casting plates 11 are opposite to each other, the two splicing plates 122 at the opposite ends of the two opposite connecting plates 121 are stacked up and down, and the splicing through holes 123 in the middle of the two groups of stacked splicing plates 122 are coaxial, that is, the four splicing through holes 123 located at the close contact of the two casting plates 11 on the same side are coaxial, and then the plug-in rod 21 is plugged into the four splicing through holes 123 from top to bottom, so as to realize the function of connecting the two casting plates 11 on the same side. Similarly, the two casting plates 11 on the other side are connected by another plug-in rod 21, and this step is repeated until multiple groups of symmetrically connected casting plates 11 are connected to each other, that is, multiple formwork devices 1 are connected to each other.

[0045] See also Figure 1 , Figure 2 and Figure 7 The concrete retaining wall casting formwork installation and fixing structure also includes a fixing device 3, two of which are arranged symmetrically on the left and right, and the fixing device 3 is connected to the formwork device 1 located at the outermost side. The fixing device 3 includes two fixing mechanisms 31 which are symmetrically distributed front and back and connected to the formwork device 1 located at the outermost side, and a distance adjustment mechanism 32 is commonly connected to the two fixing mechanisms 31, and a compensation mechanism 33 is connected between the two fixing mechanisms 31.

[0046] See also Figure 1 and Figure 7 The compensation mechanism 33 includes a plurality of compensation plates 331 evenly distributed from front to back, a snap-in groove 333 is provided at the front end of the compensation plate 331, a snap-in protrusion 332 is installed at the rear end of the compensation plate 331, and the snap-in protrusion 332 between two adjacent compensation plates 331 is snap-fitted with the snap-in groove 333.

[0047] During specific operation, after multiple formwork devices 1 are connected to each other, a corresponding number of compensation plates 331 are selected according to the required thickness of the concrete retaining wall to be cast, and the multiple compensation plates 331 are spliced ​​together. When the multiple compensation plates 331 are spliced, the snap-fitting protrusions 332 between two adjacent compensation plates 331 are snap-fitted with the snap-fitting grooves 333.

[0048] See also Figure 1 , Figure 2 and Figure 7The fixing mechanism 31 includes a positioning plate 311 tightly attached to the end of the casting plate 11 located at the outermost side, and the end of the positioning plate 311 away from the compensation mechanism 33 is connected to two upper and lower distributed limiting branch chains 312, and the limiting branch chain 312 located on the lower side is connected to a clamping plate 313, and the opposite end of the positioning plate 311 located on the rear side is provided with a connecting groove, and the opposite end of the positioning plate 311 located on the front side is integrally formed with a connecting protrusion, the clamping protrusion 332 of the compensation plate 331 located on the rear side is clamped with the corresponding connecting groove on the positioning plate 311, and the clamping groove 333 of the compensation plate 331 located on the front side is clamped with the corresponding connecting protrusion on the positioning plate 311.

[0049] See also Figure 1 , Figure 2 and Figure 7 The distance adjustment mechanism 32 includes two rectangular blocks 321 respectively installed at one end of the two positioning plates 311 away from the casting plate 11, and a distance adjustment rod 322 is slidably connected between the two rectangular blocks 321. A plurality of evenly distributed distance adjustment holes 323 are provided at two positions of the distance adjustment rod 322 close to the two rectangular blocks 321. A locking rod 324 is slidably connected to the upper end of the rectangular block 321, and the locking rod 324 is plugged into any one of the distance adjustment holes 323.

[0050] When the work is done, a plurality of assembled compensation plates 331 are placed between the front and rear positioning plates 311, and then the two positioning plates 311 are brought close to each other, and the connecting groove on the positioning plate 311 located on the rear side is engaged with the engaging protrusion 332 of the rearmost compensation plate 331, and the connecting protrusion on the front side of the positioning plate 311 is engaged with the engaging groove 333 of the frontmost compensation plate 331, so as to realize the function of preliminary connection between the two positioning plates 311 and the compensation mechanism 33, and then the distance adjusting rod 322 is inserted into the two rectangular blocks 321, and the two positioning rods 324 are respectively engaged with the corresponding rectangular blocks 321 and engaged with the corresponding distance adjusting through holes 323, so as to realize the function of limiting the distance adjusting rod 322, and then realize the function of limiting the two positioning plates 311, further strengthening the connection strength between the two positioning plates 311 and the compensation mechanism 33, and repeating this step to connect the two positioning plates 311 on the other side with the compensation mechanism 33.

[0051] See also Figure 1 and Figure 7 The limiting branch chain 312 includes a limiting plate 3121 installed on the positioning plate 311, and the limiting plate 3121 is located above the corresponding splicing plate 122 on the outermost side. A limiting rod 3122 is inserted in the middle of the limiting plate 3121, and the limiting rod 3122 is plugged into the corresponding splicing through hole 123.

[0052] During specific operation, after all the fixing devices 3 on both sides are spliced ​​and connected, the two fixing devices 3 are moved to both sides of the multiple interconnected formwork devices 1 respectively, and then the two positioning plates 311 are tightly attached to the ends of the corresponding two casting plates 11, and the positioning plates 311 drive the two limiting plates 3121 to move above the corresponding two splicing plates 122, and then the two limiting rods 3122 are respectively passed through the two limiting plates 3121 and plugged into the splicing through holes 123 on the two splicing plates 122 to realize the function of connecting the positioning plates 311 with the casting plates 11, and this step is repeated until the four positioning plates 311 are fully connected to the corresponding casting plates 11. At this time, the two fixing devices 3 are tightly attached to the two ends of the multiple interconnected formwork devices 1 and are limited, and the two fixing devices 3 and the multiple formwork devices 1 form a sealed space, which is a casting space.

[0053] See also Figure 6 Two rectangular plates 13 with circular through holes and symmetrically distributed on the left and right sides are installed on the connecting plate 121 located on the lower side.

[0054] See also Figure 1 , Figure 4 , Figure 6 and Figure 7 Two locking screws 4 symmetrically distributed front to back are connected between the two fixing devices 3 located on the left and right sides. The locking screws 4 simultaneously pass through two clamping plates 313, multiple rectangular plates 13 and multiple connecting through holes 22 on the same side.

[0055] During the specific operation, after the two fixing devices 3 are tightly attached to the two ends of the interconnected formwork devices 1, the two locking screws 4 are respectively passed through the two clamping plates 313 on both sides, multiple rectangular plates 13 and the connecting holes 22 on the multiple plug-in rods 21, and then the locking screws 4 are locked by nuts. At this time, the two locking screws 4 simultaneously lock the bottoms of the two fixing devices 3 and multiple formwork devices 1, thereby improving the supporting strength of the bottoms of the multiple formwork devices 1 for the concrete, and avoiding the phenomenon of the plug-in rods 21 being separated from the splicing holes 123 during construction, further strengthening the connection strength between the multiple formwork devices 1, and then pouring concrete into the pouring space, waiting for the concrete to solidify, and finally releasing the locking screws 4 on the two fixing devices 3 and the multiple formwork devices 1, and then separating the two fixing devices 3 and the multiple formwork devices 1 from the concrete retaining wall, and the construction is completed.

[0056] In addition, the present invention also provides a construction method for installing a fixed structure of a concrete retaining wall casting formwork, which specifically includes the following steps: S1: select multiple formwork devices 1 and transport them to the construction location, and then adjust the spacing between the two casting plates 11 of the formwork device 1 through the adjustment mechanism 14 and the locking mechanism 16.

[0057] S2: Then select two formwork devices 1 to be close together, and the four connecting mechanisms 12 on the two adjacent casting plates 11 on the front left and right sides are close to each other, and then the plug-in rod 21 is plugged into the four connecting mechanisms 12 that are close to each other, and similarly, another plug-in rod 21 is plugged into the four connecting mechanisms 12 that are close to each other on the rear side.

[0058] S3: Repeat step S2 until the selected multiple template devices 1 are spliced ​​together.

[0059] S4: sequentially adjust the compensation distances of the two compensation mechanisms 33, place one compensation mechanism 33 between the two fixing mechanisms 31, and then lock and limit the position through the distance adjustment mechanism 32, and repeat this step to obtain two adjusted fixing devices 3.

[0060] S5: Connect the two side fixing devices 3 to the two outermost formwork devices 1 respectively, and then connect the two locking screws 4 to the two fixing devices 3 and multiple formwork devices 1 in turn, and then pour the concrete. After the concrete solidifies, release the locking of the locking screws 4, and then separate the two fixing devices 3 and multiple formwork devices 1 from the concrete retaining wall, and the construction is completed.

[0061] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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 a limitation on the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0062] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" 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 an indirect connection 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.

[0063] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A concrete retaining wall casting template installation and fixing structure, characterized in that: The invention comprises a plurality of template devices (1) evenly distributed and fitted from left to right, wherein the template device (1) comprises two casting plates (11) symmetrically distributed front and back, the two casting plates (11) are connected to two connecting mechanisms (12) distributed up and down at the opposite ends, and the connecting mechanism (12) located at the lower side is connected to two rectangular plates (13) symmetrically distributed left and right; A plurality of plug-in devices (2) are provided and are respectively located between two adjacent left and right casting plates (11), the plug-in device (2) comprising a plug-in rod (21) connected to four connecting mechanisms (12) on the two adjacent left and right casting plates (11), and a connecting through hole (22) is provided on the plug-in rod (21); The fixing devices (3) are provided with two and are symmetrically distributed left and right, the fixing devices (3) are connected to the template device (1) located at the most side, the fixing devices (3) include two fixing mechanisms (31) symmetrically distributed front and back and connected to the template device (1) located at the most side, the two fixing mechanisms (31) are commonly connected to a distance adjustment mechanism (32), and a compensation mechanism (33) is connected between the two fixing mechanisms (31); The fixing mechanism (31) comprises a positioning plate (311) closely attached to the end of the casting plate (11) located at the outermost side, and one end of the positioning plate (311) away from the compensation mechanism (33) is connected to two upper and lower distributed limiting branch chains (312), and a clamping plate (313) is connected to the limiting branch chain (312) located at the lower side; Two locking screws (4) symmetrically distributed front to back are connected between the two fixing devices (3) located on the left and right sides, and the locking screws (4) simultaneously pass through two clamping plates (313), a plurality of rectangular plates (13) and a plurality of connecting through holes (22) on the same side.

2. A concrete retaining wall casting formwork installation and fixing structure according to claim 1, characterized in that: The template device (1) further comprises a plurality of adjustment mechanisms (14) evenly distributed from left to right and simultaneously connected to the two connection mechanisms (12) located on the upper side, and a pushing plate (15) and a locking mechanism (16) are commonly mounted on the plurality of adjustment mechanisms (14).

3. A concrete retaining wall casting formwork installation and fixing structure according to claim 2, characterized in that: The connection mechanism (12) comprises a connection plate (121) mounted on the casting plate (11), and both left and right ends of the connection plate (121) are integrally formed with a splicing plate (122), the two splicing plates (122) are distributed vertically, and a splicing through hole (123) is opened in the middle of the splicing plate (122).

4. A concrete retaining wall casting formwork installation and fixing structure according to claim 3, characterized in that: The four connecting plates (121) on the two adjacent casting plates (11) are opposite to each other in pairs, the two splicing plates (122) at the proximal ends of the two adjacent connecting plates (121) are stacked and fitted up and down, and the four splicing through holes (123) on the four splicing plates (122) are simultaneously plugged and matched with the corresponding plug rods (21).

5. The concrete retaining wall casting formwork installation and fixing structure according to claim 1 is characterized in that: The distance adjustment mechanism (32) comprises two rectangular blocks (321) respectively mounted on one end of the two positioning plates (311) away from the casting plate (11); a distance adjustment rod (322) is slidably connected between the two rectangular blocks (321); two positions of the distance adjustment rod (322) close to the two rectangular blocks (321) are provided with a plurality of evenly distributed distance adjustment through holes (323); a positioning rod (324) is slidably connected to the upper end of the rectangular block (321); and the positioning rod (324) is plugged into and matched with any one of the distance adjustment through holes (323).

6. A concrete retaining wall casting formwork installation and fixing structure according to claim 1, characterized in that: The compensation mechanism (33) comprises a plurality of compensation plates (331) evenly distributed from front to back, a front end of the compensation plate (331) is provided with a snap-in groove (333), a rear end of the compensation plate (331) is provided with a snap-in protrusion (332), the snap-in protrusion (332) between two adjacent compensation plates (331) is snap-fitted with the snap-in groove (333), the snap-in protrusion (332) of the compensation plate (331) at the rearmost side is snap-fitted with the corresponding positioning plate (311), and the snap-in groove (333) of the compensation plate (331) at the frontmost side is snap-fitted with the corresponding positioning plate (311).

7. A concrete retaining wall casting formwork installation and fixing structure according to claim 3, characterized in that: The limiting branch chain (312) comprises a limiting plate (3121) mounted on the positioning plate (311), the limiting plate (3121) being located above the corresponding splicing plate (122) at the outermost side, a limiting rod (3122) being inserted in the middle of the limiting plate (3121), and the limiting rod (3122) being plugged into and matched with the corresponding splicing through hole (123).

8. The concrete retaining wall casting formwork installation and fixing structure according to claim 3 is characterized in that: The adjustment mechanism (14) comprises two square plates (141) respectively mounted on the upper ends of the two front and rear connecting plates (121); an adjustment rod (142) is slidably connected through the middle of the two square plates (141); the adjustment rod (142) is fixedly connected to the pushing plate (15); and a plurality of adjustment holes (143) evenly distributed from front to back are formed on the adjustment rod (142).

9. A concrete retaining wall casting formwork installation and fixing structure according to claim 8, characterized in that: The locking mechanism (16) comprises a strip plate (161) arranged above the casting plate (11) located at the rear side, and a plurality of positioning rods (162) evenly distributed from left to right are installed at the lower end of the strip plate (161), and the positioning rods (162) slide through the corresponding square plate (141) located at the rear side and are plugged into and matched with any one of the adjustment holes (143).

10. A construction method for installing a fixed structure for pouring a concrete retaining wall formwork, characterized in that: The method of installing the fixing structure of the pouring formwork according to claim 9 comprises the following steps: S1: Select a plurality of formwork devices (1) and transport them to a construction location, and then adjust the spacing between two casting plates (11) of the formwork devices (1) by means of an adjustment mechanism (14) and a positioning mechanism (16); S2: Then, two template devices (1) are selected to be closely attached, and the four connecting mechanisms (12) on the two adjacent casting plates (11) on the front side are closely attached to each other, and then the plug-in rod (21) is plugged into the four closely attached connecting mechanisms (12), and similarly, another plug-in rod (21) is plugged into the four closely attached connecting mechanisms (12) on the rear side; S3: repeating step S2 until the selected plurality of template devices (1) are spliced; S4: sequentially adjusting the compensation distances of the two compensation mechanisms (33), placing one compensation mechanism (33) between the two fixing mechanisms (31), and then locking and limiting the two compensation mechanisms (33) through the distance adjustment mechanism (32), and repeating this step to obtain two adjusted fixing devices (3); S5: Connect the two side fixing devices (3) to the two sidemost formwork devices (1) respectively, and then connect the two locking screws (4) to the two fixing devices (3) and the plurality of formwork devices (1) in sequence, and then pour the concrete. After the concrete solidifies, release the locking of the locking screws (4), and then separate the two fixing devices (3) and the plurality of formwork devices (1) from the concrete retaining wall, and the construction is completed.

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