A formwork for pouring retaining wall

Abstract

The present invention relates to the field of casting templates, and specifically to a retaining wall casting template, which includes a surrounding plate and a cover plate; the surrounding plate includes a length plate and a width plate; the length plate and the width plate are connected end to end to form a rectangular frame, and the inner corner positions where the length plate and the width plate are connected are fixedly bolted together through an L-shaped connecting plate; a cover plate is covered above the surrounding plate, and lifting lugs are symmetrically fixedly connected to the upper surface of the cover plate; a plurality of support rods are horizontally arranged inside the surrounding plate, and the support rods are vertically and horizontally arranged up and down, and the ends of the support rods are placed on the supporting blocks provided on the inner surface of the surrounding plate. A plurality of supporting plates are fixedly connected to the inner side wall of the surrounding plate, and electric vibrators are fixedly connected to the supporting plates; the retaining wall casting template is modularly arranged, eliminating the need for manual assembly of the template in a limited space, reducing the input of labor, replacing manual operation with equipment, and greatly reducing the safety risk.

Description

Technical Field

[0001] The present invention relates to the field of casting templates, and specifically to a retaining wall casting template. Background Art

[0002] To ensure safety, the design requires that the construction of the corresponding section of the main project can only be carried out after all the construction of the protective piles is completed. However, the manual excavation of holes has a slow hole-forming speed and a long construction period, which is extremely disadvantageous to the construction period. Moreover, there are great safety hazards in the operation inside the holes. Therefore, before the excavation, it is necessary to carry out protective treatment on the surrounding of the hole position to be excavated. Generally, steel piles are driven to enclose a safe area for hole excavation, and the soil within the safe area is dug out, or a concrete wall is poured around the excavation hole, and the soil inside the wall is dug out; for the former method of driving piles to enclose the area, the steel piles need to be removed one by one in the later stage, while for the latter method of pouring a concrete wall, the poured wall can be directly used continuously in the later stage as a part of the infrastructure to support the main body;

[0003] When pouring a concrete wall, a casting template is required. Currently, the general way of using the template is to pre-dig a groove for placing the template on the soil, and then gradually assemble the template in blocks. When the groove is excavated, the construction volume is reduced. The width of the groove is generally limited to one person to operate inside, and the operation space is limited, which is not convenient for exerting force and affects the installation efficiency of the template.

[0004] Therefore, a retaining wall casting template is proposed for the above problems. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a retaining wall casting template of the present invention includes a surrounding plate and a cover plate; the surrounding plate includes a length plate and a width plate; the length plate and the width plate are connected end to end to form a rectangular frame, and the inner corner positions where the length plate and the width plate are connected are bolted together through an L-shaped connecting plate; a cover plate is covered above the surrounding plate, and lifting lugs are symmetrically fixed on the upper surface of the cover plate;

[0007] A plurality of support rods are horizontally arranged inside the surrounding plate, the support rods are vertically and horizontally arranged up and down, the ends of the support rods are placed on the supporting blocks provided on the inner surface of the surrounding plate, and a plurality of supporting plates are fixed on the inner side wall of the surrounding plate, and electric vibrators are fixed on the supporting plates;

[0008] In the embodiment of the present invention, the formwork is pre-assembled, the electric vibrator is fixed on the pallet, and then the lifting rope is tied to the support block or the pallet on the formwork. Then, it is transported above the trench by a crane, the position is adjusted, and the formwork is slowly lowered. After the formwork is stable, the lifting rope is then tied to the lifting lug on the cover plate, and the cover plate is transported above the formwork. After the concrete mixer truck arrives, the concrete is placed through a chute 0.5 meters above the slope surface of the cover plate for concrete pouring. At the same time, the electric vibrator vibrates and compacts the concrete pouring down. After the concrete dries, the cover plate is lifted out, and then the operator descends into the formwork to remove the support rod, the electric vibrator and the connecting plate. Then, the formwork is lifted out; the formwork for the retaining wall pouring is modularly arranged, eliminating the need for manual formwork assembly in a limited space, reducing the labor input, replacing manual work with equipment, and greatly reducing the safety risk.

[0009] Preferably, a plurality of waist-shaped holes are formed in the upper end surface of the formwork, and insertion holes are formed in the formwork entity at the positions of the waist-shaped holes; a plurality of insertion plates are fixedly connected to the lower end surface of the cover plate, and insertion holes are also formed in the insertion plates. The insertion plates are inserted into the waist-shaped holes, and fixing pins are inserted into the insertion holes on the formwork and the insertion holes on the insertion plates; during construction, when the formwork for the retaining wall pouring needs to be used multiple times, the cover plate and the formwork are integrally arranged, and only one lifting is required to completely embed the formwork for the retaining wall pouring into the trench, which can improve the construction efficiency; on the ground, the cover plate is installed on the formwork, that is, the cover plate covers the formwork, the insertion plates are inserted into the waist-shaped holes, and then the fixing pins are embedded into the insertion holes. Later, the lifting rope is tied to the lifting lug, and the formwork for the retaining wall pouring can be hoisted into the trench as a whole; after the concrete dries, the electric vibrator is started, and the vibration generated at this time separates the formwork from the concrete retaining wall by vibration, and then the formwork is lifted out by hoisting.

[0010] Preferably, a fastening structure is provided at a position perpendicular to the support rods; the fastening structure includes a bottom plate, with grooves penetrating through both ends of the bottom plate. The rod body of the lower support rod is seated in the grooves. Two vertical rods are perpendicularly fixed to each side of the bottom plate. A bayonet is formed on the outer side wall of the upper end of each vertical rod, and all the bayonets are formed in the same direction. The rod body of the upper support rod is placed between the two vertical rods on the same side. A plate body is provided in the space surrounded by the vertical rods. Extension plates are provided at the corner positions of the plate body, and the extension plates are horizontally embedded in the bayonets. A fastening bolt is threadedly connected to the middle position of the plate body, and the end of the fastening bolt penetrates through the plate body and presses against the upper support rod; using the fastening structure to fix the criss-cross support rods into a whole can improve the strength of the retaining plate. When the electric vibrator vibrates and compacts the concrete, the retaining plate can resist higher-strength external forces, ensuring the quality of the concrete wall; in the fastening structure designed in this embodiment, during specific operation, the bottom plate is attached and pressed against the lower support rod, then the plate body is placed in the space surrounded by the vertical rods, and the plate body is rotated so that each extension plate rotates into the bayonet. At this time, the bottom plate is temporarily constrained on the support rod, and then the fastening bolt is rotated. The end of the fastening bolt presses against the upper support rod. At this time, the two support rods are pressed and fixed together, fixing multiple support rods into a whole, improving the support strength of the retaining plate. At the same time, multiple support rods form a whole. When assembling the retaining plate, the overall support rods are installed on the retaining plate at one time, which can also improve the installation efficiency. Moreover, when disassembling the overall support rods later, loosening the fastening bolt can quickly disassemble them, facilitating the operation and improving the construction efficiency.

[0011] Preferably, a sliding hole is formed in each vertical rod. The upper hole end of the sliding hole penetrates through the upper end of the vertical rod, and the lower hole end of the sliding hole penetrates into the bayonet. A sliding rod connected by a spring is provided in the sliding hole; a fixing hole is formed in the extension plate; the outer circumference of the upper half of the fastening bolt is rotatably connected with a pressing plate. A compression spring is provided on the lower surface of the pressing plate, and the lower end of the compression spring is fixedly connected with a rectangular plate. The middle position of the rectangular plate is in clearance fit with the fastening bolt, and the lower surface of the rectangular plate presses against the upper end of the sliding rod; when the retaining plate is in use, the vibration force generated by the electric vibrator is transmitted to the fastening structure through the support rod. At this time, the vibration force has a certain destructive effect on the stability between the extension plate and the bayonet, which will cause the extension plate to gradually slide out of the bayonet, resulting in the loss of the extrusion force between the upper and lower support rods. Therefore, the sliding rod is provided. During the process of tightening the fastening bolt, the fastening bolt presses down the pressing plate, the pressing plate presses down the compression spring, the compression spring presses down the rectangular plate, and the rectangular plate presses down the sliding rod. The lower end of the sliding rod gradually extends out of the sliding hole and is embedded in the fixing hole on the extension plate. At this time, the extension plate is constrained in the bayonet by the sliding rod, ensuring the stability between the extension plate and the bayonet.

[0012] Preferably, an arc-shaped rod is fixedly connected to the lower surface of each support block, an arc-shaped hole is provided in the arc-shaped rod, an arc-shaped locking rod is slidably connected in the arc-shaped hole, a sliding groove is provided on the side wall of the arc-shaped rod, the sliding groove is connected to the arc-shaped hole, a push rod is slidably connected in the sliding groove, the inner end of the push rod extends into the arc-shaped hole and is fixed to the locking rod; the end of the support rod is embedded in the arc-shaped opening on the support block, and the push rod is moved, so that the push rod drives the locking rod to slide around the arc-shaped hole, and the end of the locking rod is embedded in the arc-shaped hole. At this time, the locking rod and the arc-shaped rod form a closed ring, which stabilizes the end of the support rod on the support block, thereby improving the stability between the support rod and the enclosure.

[0013] Preferably, a wrench is fixedly connected to the outer end of the push rod, and a sliding pin is slidably connected to the wrench, one end of the sliding pin is connected to the outer surface of the wrench by a spring, and the other end of the sliding pin is vertically fixed to the plug rod; a limiting hole is provided at one end of the arc rod, and the plug rod is inserted in the limiting hole; the wrench is pushed to realize the sliding of the locking rod, which saves effort, and after the locking rod and the arc rod form a closed circular ring, the sliding pin is squeezed, and the sliding pin drives the plug rod to move above the limiting hole, and then part of the locking rod is retracted, and the plug rod is embedded in the limiting hole. At this time, the locking rod is stabilized, and the locking rod and the arc rod form a closed circular ring for further stabilization, thereby improving the stability between the support rod and the enclosure.

[0014] Preferably, a plurality of arc-shaped recesses are provided in each of the grooves, an arc-shaped magnetic plate is fixed in each recess, and the inner surface of the groove is higher than the outer surface of the magnetic plate; when installing the fastening structure, the base plate is first attached to the support rod below, and the magnetic plate is pre-adsorbed on the support rod. At this time, the base plate is stabilized on the support rod, and the operator can free his hands to operate other matters. The humanized design facilitates the operator's operation.

[0015] Preferably, the support rod includes rod No. 1 and rod No. 2, and the end of rod No. 1 is threadedly connected to the end of rod No. 2; by rotating rod No. 1 and rod No. 2, the actual length of the support rod is adjusted, the extrusion strength of the two ends of the support rod on the enclosure is increased, and the strength of the enclosure is improved.

[0016] Preferably, the lower end of the waist-shaped hole extends obliquely into the enclosure and penetrates the inner surface of the enclosure; the cover plate and the enclosure are separately arranged, and when pouring concrete, the electric vibrator vibrates part of the concrete to penetrate into the gap between the cover plate and the enclosure, and later when cleaning the concrete, the concrete residue flows into the waist-shaped hole and is discharged along the waist-shaped hole to prevent the concrete residue from filling the waist-shaped hole.

[0017] Preferably, both ends of the length plate are provided with inclined surfaces, and the horizontal cross-sectional shape of the length plate is an isosceles trapezoid. Both ends of the width plate are provided with convex parts, and the convex parts are attached to the inclined surfaces. With the shape settings of both ends of the length plate and both ends of the width plate, there is an inward squeezing and restraining trend of the width plate on the length plate, while the support rod has an outward squeezing and restraining trend on the length plate. For the length plate and the surrounding plate, these two restraining trends are a trend that helps to stabilize the overall formwork, further improving the overall firmness of the formwork.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The retaining wall pouring formwork in the present invention is modularly arranged, eliminating the need for manual assembly of the formwork in a limited space, reducing the labor input, replacing manual operation with equipment, and greatly reducing the safety risks. In addition, the cover plate and the surrounding plate are integrally arranged, and the retaining wall pouring formwork can be completely embedded in the trench with only one hoisting, improving the construction efficiency.

[0020] 2. In the present invention, by fixing two support rods together by a fastening structure, multiple support rods are fixed as a whole, improving the support strength of the surrounding plate. At the same time, multiple support rods form a whole. When assembling the surrounding plate, the overall support rods are installed on the surrounding plate at one time, which can also improve the installation efficiency. Moreover, when disassembling the overall support rods later, the fastening bolts can be loosened to quickly disassemble them, facilitating the operation and improving the construction efficiency. Description of the Drawings

[0021] Figure 1 It is a three-dimensional view of the retaining wall pouring formwork in the first embodiment;

[0022] Figure 2 It is a three-dimensional view of the surrounding plate in the first embodiment;

[0023] Figure 3 It is a three-dimensional view of the cover plate in the first embodiment;

[0024] Figure 4 It is a three-dimensional view of the fastening structure in the first embodiment;

[0025] Figure 5 It is a combined three-dimensional view of the bottom plate and the vertical rod in the first embodiment;

[0026] Figure 6 It is a three-dimensional view of the plate body in the first embodiment;

[0027] Figure 7 It is a cross-sectional view of the vertical rod in the first embodiment;

[0028] Figure 8 It is a combined three-dimensional view of the support rod and the support block in the first embodiment;

[0029] Figure 9Stereogram of the cooperation between the locking rod and the arc-shaped hole in the first embodiment;

[0030] Figure 10 Stereogram of the locking rod in the first embodiment;

[0031] Figure 11 Stereogram of the cooperation between the length plate and the width plate in the second embodiment.

[0032] In the figure: the enclosing plate 1, the cover plate 2, the length plate 3, the width plate 4, the connecting plate 5, the lifting lug 6, the support rod 7, the supporting block 8, the supporting plate 9, the waist-shaped hole 10, the jack 11, the inserting plate 12, the bottom plate 13, the groove 14, the vertical rod 15, the bayonet 16, the plate body 17, the extension plate 18, the fastening bolt 19, the sliding hole 20, the sliding rod 21, the fixing hole 22, the pressing plate 23, the compression spring 24, the rectangular plate 25, the arc-shaped rod 26, the arc-shaped hole 27, the locking rod 28, the sliding groove 29, the push rod 30, the wrench 31, the sliding pin 32, the inserting rod 33, the limiting hole 34, the magnetic plate 35, the first rod 36, the second rod 37. Detailed implementation manners

[0033] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0034] Embodiment 1:

[0035] Refer to Figure 1 , Figure 2 and Figure 3 , a formwork for pouring retaining wall, comprising an enclosing plate 1 and a cover plate 2; the enclosing plate 1 includes a length plate 3 and a width plate 4; the length plate 3 and the width plate 4 are connected end to end to form a rectangular frame, and the inner corner positions where the length plate 3 and the width plate 4 are connected are bolted together through an L-shaped connecting plate 5; a cover plate 2 is covered above the enclosing plate 1, and lifting lugs 6 are symmetrically fixed on the upper surface of the cover plate 2;

[0036] A plurality of support rods 7 are horizontally arranged inside the enclosing plate 1, the support rods 7 are arranged vertically and horizontally up and down, the ends of the support rods 7 are placed on the supporting blocks 8 provided on the inner surface of the enclosing plate 1, and a plurality of supporting plates 9 are fixed on the inner side wall of the enclosing plate 1, and electric vibrators are fixed on the supporting plates 9;

[0037] In the embodiment of the present invention, the retaining plate 1 is pre-assembled, the electric vibrator is fixed on the pallet 9, and then the lifting rope is tied to the support block 8 on the retaining plate 1 or the pallet 9. Then, it is transported above the trench by a crane, the position is adjusted, and the retaining plate 1 is slowly lowered. After the retaining plate 1 is stable, the lifting rope is then tied to the lifting lug 6 on the cover plate 2, and the cover plate 2 is transported above the retaining plate 1. After the concrete mixer truck arrives, the concrete is lowered to 0.5 meters above the slope surface of the cover plate 2 through a tremie pipe for concrete pouring. At the same time, the electric vibrator vibrates and compacts the concrete pouring down. After the concrete dries, the cover plate 2 is lifted out, and then the operator descends into the retaining plate 1 to remove the support rod 7, the electric vibrator and the connecting plate 5. Then, the retaining plate 1 is lifted out; this formwork for retaining wall pouring is modularly arranged, eliminating the need for manual assembly of the formwork in a limited space, reducing the labor input, replacing manual work with equipment, and greatly reducing the safety risk.

[0038] Refer to Figure 2 and Figure 3 , a plurality of kidney-shaped holes 10 are formed in the upper end surface of the retaining plate 1, and insertion holes 11 are formed in the retaining plate 1 entity at the positions of the kidney-shaped holes 10; a plurality of insertion plates 12 are fixedly connected to the lower end surface of the cover plate 2, and insertion holes 11 are also formed in the insertion plates 12. The insertion plates 12 are inserted into the kidney-shaped holes 10, and fixing pins are inserted into the insertion holes 11 in the retaining plate 1 and the insertion holes 11 in the insertion plates 12. During construction, when the formwork for retaining wall pouring needs to be used multiple times, the cover plate 2 and the retaining plate 1 are integrally arranged, and only one lifting is required to completely embed the formwork for retaining wall pouring into the trench, which can improve the construction efficiency; on the ground, the cover plate 2 is installed on the retaining plate 1, that is, the cover plate 2 covers the retaining plate 1, so that the insertion plates 12 are inserted into the kidney-shaped holes 10, and then the fixing pins are embedded into the insertion holes 11. Later, the lifting rope is tied to the lifting lug 6, and the formwork for retaining wall pouring can be integrally lifted into the trench; after the concrete dries, the electric vibrator is started, and the vibration generated at this time separates the formwork from the concrete retaining wall by vibration, and then the formwork is lifted out by hoisting.

[0039] Refer to Figure 4 , Figure 5 , Figure 6 and Figure 7, a fastening structure is provided at a position perpendicular to the support rod 7; the fastening structure includes a bottom plate 13, grooves 14 are formed through both ends of the bottom plate 13, the rod body of the lower support rod 7 is seated in the grooves 14, two vertical rods 15 are perpendicularly fixed to each side of the bottom plate 13, a bayonet 16 is formed on the outer side wall of the upper end of each vertical rod 15, the bayonets 16 are all formed in the same direction, the rod body of the upper support rod 7 is placed between two vertical rods 15 on the same side, a plate body 17 is provided in the space surrounded by the vertical rods 15, extension plates 18 are provided at the corner positions of the plate body 17, the extension plates 18 are horizontally inserted into the bayonets 16, a fastening bolt 19 is connected to the middle position of the plate body 17 by thread, the end of the fastening bolt 19 penetrates through the plate body 17 and presses on the upper support rod 7; using the fastening structure to fixedly connect the criss-cross support rods 7 into a whole can improve the strength of the enclosure panel 1. When the electric vibrator vibrates and compacts the concrete, the enclosure panel 1 can resist external forces of higher strength, ensuring the quality of the concrete wall; and for the fastening structure designed in this embodiment, during specific operation, the bottom plate 13 is attached and pressed on the lower support rod 7, then the plate body 17 is placed in the space surrounded by the vertical rods 15, and the plate body 17 is rotated so that each extension plate 18 rotates into the bayonet 16. At this time, the bottom plate 13 is temporarily constrained on the support rod 7, and then the fastening bolt 19 is rotated. The end of the fastening bolt 19 presses on the upper support rod 7. At this time, the two support rods 7 are pressed and fixed together, fixing multiple support rods 7 into a whole, improving the support strength of the enclosure panel 1. At the same time, multiple support rods 7 are enclosed into a whole. When assembling the enclosure panel 1, the overall support rods 7 are installed on the enclosure panel 1 at one time, which can also improve the installation efficiency. Moreover, when disassembling the overall support rods 7 later, loosening the fastening bolt 19 can quickly disassemble them, facilitating the operation and improving the construction efficiency.

[0040] Refer to Figure 4 , Figure 5 , Figure 6 and Figure 7, a sliding hole 20 is formed in each of the vertical rods 15. The upper hole end of the sliding hole 20 penetrates through the upper end of the vertical rod 15, and the lower hole end of the sliding hole 20 penetrates into the bayonet 16. A sliding rod 21 connected by a spring is arranged in the sliding hole 20; a fixing hole 22 is formed in the extension plate 18; the outer circle of the upper half of the fastening bolt 19 is rotatably connected with a pressing plate 23. A compression spring 24 is arranged on the lower surface of the pressing plate 23. The lower end of the compression spring 24 is fixedly connected with a rectangular plate 25. The middle position of the rectangular plate 25 is in clearance fit with the fastening bolt 19. The lower surface of the rectangular plate 25 presses on the upper end of the sliding rod 21. When the surrounding plate 1 is in use, the vibration force generated by the electric vibrator is transmitted to the fastening structure through the support rod 7. At this time, the vibration force has a certain destructive effect on the stability between the extension plate 18 and the bayonet 16, which will cause the extension plate 18 to gradually slide out of the bayonet 16, resulting in the loss of the extrusion force between the upper and lower support rods 7. Therefore, the sliding rod 21 is provided. During the process of rotating and tightening the fastening bolt 19, the fastening bolt 19 presses down the pressing plate 23, the pressing plate 23 presses the compression spring 24, the compression spring 24 presses the rectangular plate 25, the rectangular plate 25 presses the sliding rod 21, and the lower end of the sliding rod 21 gradually extends out of the sliding hole 20 and is embedded in the fixing hole on the extension plate 18. At this time, the extension plate 18 is constrained in the bayonet 16 by the sliding rod 21, ensuring the stability between the extension plate 18 and the bayonet 16.

[0041] Refer to Figure 8 , Figure 9 and Figure 10 , an arc-shaped rod 26 is fixedly connected to the lower surface of each support block 8. An arc-shaped hole 27 is formed in the arc-shaped rod 26. An arc-shaped locking rod 28 is slidably connected in the arc-shaped hole 27. A sliding groove 29 is formed in the side wall of the arc-shaped rod 26. The sliding groove 29 communicates with the arc-shaped hole 27. A push rod 30 is slidably connected in the sliding groove 29. The inner end of the push rod 30 extends into the arc-shaped hole 27 and is fixedly connected to the locking rod 28; when the end of the support rod 7 is embedded in the arc-shaped opening on the support block 8, the push rod 30 is toggled, the push rod 30 drives the locking rod 28 to slide around the arc-shaped hole 27, and the end of the locking rod 28 is embedded in the arc-shaped hole 27. At this time, the locking rod 28 and the arc-shaped rod 26 enclose a closed ring, stabilizing the end of the support rod 7 on the support block 8 and improving the stability between the support rod 7 and the surrounding plate 1.

[0042] Refer to Figure 8 , Figure 9 and Figure 10, a wrench 31 is fixedly connected to the outer end of the push rod 30. A sliding pin 32 is slidably connected to the wrench 31. One end of the sliding pin 32 is connected to the outer surface of the wrench 31 through a spring, and the other end of the sliding pin 32 is perpendicularly fixedly connected to an insertion rod 33. A limiting hole 34 is formed at one end position of the arc-shaped rod 26, and the insertion rod 33 is inserted into the limiting hole 34. By pushing the wrench 31, the sliding of the locking rod 28 is realized, which is labor-saving. After the locking rod 28 and the arc-shaped rod 26 enclose a closed ring, the sliding pin 32 is squeezed, and the sliding pin 32 drives the insertion rod 33 to move upward above the limiting hole 34. Then, the locking rod 28 is retracted partially, and the insertion rod 33 is embedded in the limiting hole 34. At this time, the locking rod 28 is stabilized, and the closed ring formed by the locking rod 28 and the arc-shaped rod 26 is further stabilized, improving the stability between the support rod 7 and the enclosure 1.

[0043] Referring to Figure 5 , a plurality of arc-shaped recesses are formed in each of the grooves 14, and an arc-shaped magnetic plate 35 is fixedly connected in each recess. The inner surface of the groove 14 is higher than the outer surface of the magnetic plate 35. When installing the fastening structure, first attach the bottom plate 13 to the lower support rod 7, and the magnetic plate 35 is pre-adsorbed on the support rod 7. At this time, the bottom plate 13 is stable on the support rod 7, and the operator can free both hands to operate other matters, which is a user-friendly design and convenient for the operator to work.

[0044] Referring to FIG. 2, the support rod 7 includes a first rod 36 and a second rod 37. The end of the first rod 36 is threadedly connected to the end of the second rod 37. By rotating the first rod 36 and the second rod 37, the actual length of the support rod 7 is adjusted, improving the extrusion strength of both ends of the support rod 7 on the enclosure 1 and enhancing the strength of the enclosure 1.

[0045] Referring to FIG. 2, the lower end of the waist-shaped hole 10 extends obliquely inward towards the enclosure 1 and penetrates the inner surface of the enclosure 1. The cover plate 2 is separately arranged from the enclosure 1. When pouring concrete, the electric vibrator vibrates part of the concrete so that it penetrates into the gap between the cover plate 2 and the enclosure 1. In the later stage of cleaning the concrete, the concrete slag flows into the waist-shaped hole 10 and is discharged along the waist-shaped hole 10, preventing the concrete slag from filling the waist-shaped hole 10.

[0046] Embodiment 2:

[0047] Referring to Figure 11, compared with the first comparative example, as another implementation manner of the present invention, wherein both ends of the length plate 3 are provided with inclined surfaces, and the horizontal cross-sectional shape of the length plate 3 is an isosceles trapezoid shape. Both ends of the width plate 4 are provided with convex parts, and the convex parts are attached to the inclined surfaces. Due to the shape settings at both ends of the length plate 3 and both ends of the width plate 4, there is an inward extrusion and constraint trend of the width plate 4 on the length plate 3, while the support rod 7 has an outward extrusion and constraint trend on the length plate 3. For the length plate 3 and the surrounding plate 1, these two constraint trends are a trend that helps to stabilize the overall formwork, further improving the overall firmness of the formwork.

[0048] Working principle: In the embodiment of the present invention, the surrounding plate 1 is pre-assembled, the electric vibrator is fixed on the support plate 9, and then the lifting rope is tied to the support block 8 or the support plate 9 on the surrounding plate 1. Then, it is transported above the trench by a crane, the position is adjusted, and the surrounding plate 1 is slowly lowered. After the surrounding plate 1 is stable, then the lifting rope is tied to the lifting lug 6 on the cover plate 2, and the cover plate 2 is transported above the surrounding plate 1. After the concrete truck arrives, the concrete is lowered to a position 0.5 meters above the slope surface of the cover plate 2 through a chute for concrete pouring. At the same time, the electric vibrator vibrates and compacts the concrete pouring down. After the concrete dries, the cover plate 2 is lifted out, and then the operator descends into the surrounding plate 1 to remove the support rod 7, the electric vibrator, and the connecting plate 5. Then, the surrounding plate 1 is lifted out; This formwork for retaining wall pouring is modularly arranged, eliminating the need for manual assembly of the formwork in a limited operating space, reducing the labor input, replacing manual operation with equipment, and greatly reducing the safety risk.

[0049] During the construction period, when the formwork for retaining wall pouring needs to be used multiple times, the cover plate 2 and the surrounding plate 1 are integrally arranged. Only one lifting is required to completely embed the formwork for retaining wall pouring into the trench, which can improve the construction efficiency; On the ground, the cover plate 2 is installed on the surrounding plate 1, that is, the cover plate 2 covers the surrounding plate 1, the insertion plate 12 is inserted into the kidney-shaped hole 10, and then the fixing pin is embedded in the insertion hole 11. Later, the lifting rope is tied to the lifting lug 6, and the formwork for retaining wall pouring can be integrally lifted into the trench; After the concrete dries, the electric vibrator is started. At this time, the vibration generated separates the formwork from the concrete retaining wall through vibration, and then the formwork is lifted out by hoisting.

[0050] Using a fastening structure to fixedly connect the criss-crossed support rods 7 into a whole can improve the strength of the enclosure panel 1. When the electric vibrator vibrates and compacts the concrete, the enclosure panel 1 can resist external forces of higher strength, ensuring the quality of the concrete wall. In the fastening structure designed in this embodiment, during specific operation, the bottom plate 13 is attached and pressed against the lower support rod 7, and then the plate body 17 is placed in the space surrounded by the vertical rods 15. The plate body 17 is rotated so that each extension plate 18 rotates into the bayonet 16. At this time, the bottom plate 13 is temporarily constrained on the support rod 7. Then the fastening bolt 19 is rotated, and the end of the fastening bolt 19 presses against the upper support rod 7. At this time, the two support rods 7 are pressed and fixed together, fixing multiple support rods 7 into a whole, improving the support strength of the enclosure panel 1. At the same time, multiple support rods 7 form a whole. When assembling the enclosure panel 1, the overall support rods 7 are installed on the enclosure panel 1 at one time, which can also improve the installation efficiency. Moreover, when disassembling the overall support rods 7 later, loosening the fastening bolt 19 can quickly disassemble them, facilitating the operation and improving the construction efficiency;

[0051] When the enclosure panel 1 is in use, the vibration force generated by the electric vibrator is transmitted to the fastening structure through the support rod 7. At this time, the vibration force has a certain destructive effect on the stability between the extension plate 18 and the bayonet 16, causing the extension plate 18 to gradually slide out of the bayonet 16, resulting in the loss of the extrusion force between the upper and lower support rods 7. Therefore, the slide rod 21 is provided. During the process of rotating and tightening the fastening bolt 19, the fastening bolt 19 presses down the pressure plate 23, the pressure plate 23 presses down the compression spring 24, the compression spring 24 presses down the rectangular plate 25, the rectangular plate 25 presses down the slide rod 21, and the lower end of the slide rod 21 gradually extends out of the slide hole 20 and is embedded in the fixture on the extension plate 18. At this time, the extension plate 18 is constrained in the bayonet 16 by the slide rod 21, ensuring the stability between the extension plate 18 and the bayonet 16;

[0052] The end of the support rod 7 is embedded in the arc-shaped opening of the support block 8. The push rod 30 is toggled, and the push rod 30 drives the locking rod 28 to slide around the arc-shaped hole 27. The end of the locking rod 28 is embedded in the arc-shaped hole 27. At this time, the locking rod 28 and the arc-shaped rod 26 form a closed ring, stabilizing the end of the support rod 7 on the support block 8 and improving the stability between the support rod 7 and the enclosure panel 1;

[0053] The wrench 31 is pushed to realize the sliding of the locking rod 28, which is labor-saving. After the locking rod 28 and the arc-shaped rod 26 form a closed ring, the slide pin 32 is squeezed, and the slide pin 32 drives the insertion rod 33 to move upward above the limit hole 34. Then the locking rod 28 is retracted partially, and the insertion rod 33 is embedded in the limit hole 34. At this time, the locking rod 28 is stabilized, further stabilizing the closed ring formed by the locking rod 28 and the arc-shaped rod 26 and improving the stability between the support rod 7 and the enclosure panel 1;

[0054] When installing the fastening structure, first attach the bottom plate 13 to the lower support rod 7. The magnetic plate 35 is pre-adsorbed on the support rod 7. At this time, the bottom plate 13 is stable on the support rod 7, and the operator can free both hands to operate other matters, which is a user-friendly design and convenient for the operator to work. By rotating the first rod (36) and the second rod 37, the actual length of the support rod 7 is adjusted to increase the extrusion strength of both ends of the support rod 7 on the surrounding plate 1 and improve the strength of the surrounding plate 1. The cover plate 2 is separately arranged from the surrounding plate 1. When pouring concrete, the electric vibrator vibrates part of the concrete so that it penetrates into the gap between the cover plate 2 and the surrounding plate 1. Later, when cleaning the concrete, the concrete slag flows into the waist-shaped hole 10 and is discharged along the waist-shaped hole 10 to prevent the concrete slag from blocking the waist-shaped hole 10.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A formwork for pouring the retaining wall, characterized in that: It includes a surrounding plate (1) and a cover plate (2); the surrounding plate (1) includes a length plate (3) and a width plate (4); the length plate (3) and the width plate (4) are connected end to end to form a rectangular frame body, and the inner corner positions where the length plate (3) and the width plate (4) are connected are bolted together through an L-shaped connecting plate (5); a cover plate (2) is covered above the surrounding plate (1), and lifting lugs (6) are symmetrically fixed on the upper surface of the cover plate (2). A plurality of support rods (7) are horizontally arranged inside the surrounding plate (1), the support rods (7) are arranged vertically and horizontally, vertically up and down, and the ends of the support rods (7) are placed on support blocks (8) provided on the inner surface of the surrounding plate (1), and a plurality of support plates (9) are fixed on the inner side wall of the surrounding plate (1), and electric vibrators are fixed on the support plates (9). A fastening structure is provided at the position where the support rods (7) are perpendicular to each other; the fastening structure includes a bottom plate (13), grooves (14) are penetrated and opened at both ends of the bottom plate (13), the rod body of the lower support rod (7) is located in the grooves (14), two vertical rods (15) are perpendicularly fixed on each side of the bottom plate (13), bayonet openings (16) are opened on the outer side walls of the upper ends of each vertical rod (15), the bayonet openings (16) are all opened in the same direction, the rod body of the upper support rod (7) is placed between two vertical rods (15) on the same side, a plate body (17) is arranged in the space surrounded by the vertical rods (15), extension plates (18) are arranged at the corner positions of the plate body (17), the extension plates (18) are horizontally embedded in the bayonet openings (16), a fastening bolt (19) is threadedly connected at the middle position of the plate body (17), and the end of the fastening bolt (19) penetrates through the plate body (17) and presses on the upper support rod (7). A sliding hole (20) is opened in each vertical rod (15), the upper hole end of the sliding hole (20) penetrates through the upper end of the vertical rod (15), the lower hole end of the sliding hole (20) penetrates into the bayonet opening (16), and a sliding rod (21) connected by a spring is arranged in the sliding hole (20); fixing holes (22) are opened on the extension plates (18); the outer circle of the upper half part of the fastening bolt (19) is rotatably connected with a pressing plate (23), a compression spring (24) is arranged on the lower surface of the pressing plate (23), the lower end of the compression spring (24) is fixed with a rectangular plate (25), the middle position of the rectangular plate (25) is in clearance fit with the fastening bolt (19), and the lower surface of the rectangular plate (25) presses on the upper end of the sliding rod (21).

2. The formwork for the pouring of the retaining wall according to claim 1, wherein: A plurality of waist-shaped holes (10) are opened on the upper end surface of the surrounding plate (1), and insertion holes (11) are opened on the solid body of the surrounding plate (1) at the positions of the waist-shaped holes (10); a plurality of insertion plates (12) are fixed on the lower end surface of the cover plate (2), insertion holes (11) are also opened on the insertion plates (12), the insertion plates (12) are inserted into the waist-shaped holes (10), and fixing pins are inserted into the insertion holes (11) on the surrounding plate (1) and the insertion holes (11) on the insertion plates (12).

3. The formwork for retaining wall pouring according to claim 1, wherein: An arc-shaped rod (26) is fixedly connected to the lower surface of each supporting block (8). An arc-shaped hole (27) is formed in the arc-shaped rod (26). An arc-shaped locking rod (28) is slidably connected in the arc-shaped hole (27). A chute (29) is formed in the side wall of the arc-shaped rod (26), and the chute (29) communicates with the arc-shaped hole (27). A push rod (30) is slidably connected in the chute (29). The inner end of the push rod (30) extends into the arc-shaped hole (27) and is fixedly connected to the locking rod (28).

4. The retaining wall pouring formwork according to claim 3, characterized in that: A wrench (31) is fixedly connected to the outer end of the push rod (30). A sliding pin (32) is slidably connected to the wrench (31). One end of the sliding pin (32) is connected to the outer surface of the wrench (31) through a spring. The other end of the sliding pin (32) is vertically fixedly connected to an insertion rod (33). A limit hole (34) is formed at one end position of the arc-shaped rod (26), and the insertion rod (33) is inserted into the limit hole (34).

5. A formwork for pouring the retaining wall according to claim 1, characterized in that: A plurality of arc-shaped recesses are formed in each groove (14). An arc-shaped magnetic plate (35) is fixedly connected in each recess. The inner surface of the groove (14) is higher than the outer surface of the magnetic plate (35).

6. The formwork for pouring the retaining wall according to claim 1, characterized in that: The support rod (7) includes a first rod (36) and a second rod (37). The end of the first rod (36) is threadedly connected to the end of the second rod (37).

7. A formwork for pouring a retaining wall according to claim 2, characterized in that: The lower end of the waist-shaped hole (10) extends obliquely into the enclosure plate (1) and penetrates the inner surface of the enclosure plate (1).

8. A formwork for pouring a retaining wall according to claim 1, characterized in that: Both ends of the length plate (3) are provided with inclined surfaces, and the horizontal cross-sectional shape of the length plate (3) is an isosceles trapezoid. Both ends of the width plate (4) are provided with convex portions, and the convex portions are attached to the inclined surfaces.

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