Cast-in-place concrete trapezoidal open trench formwork supporting construction device

Abstract

The invention belongs to the technical field of cast-in-place concrete formwork supporting construction, and particularly relates to a cast-in-place concrete trapezoidal open trench formwork supporting construction device which comprises side formworks, slope formworks, balancing weights, a frame and a containing assembly. The number of the side molds is two, the two side molds are arranged on the two sides of the top end of the vehicle frame in a sliding mode respectively, the slope surface formwork is fixedly installed on the side molds, the balancing weight is arranged in the center of the top end of the vehicle frame in a sliding mode in the direction opposite to the moving direction of the vehicle frame, and the placing assembly comprises an upper rotating frame and a lower rotating frame. The upper rotating frame and the lower rotating frame are both rotationally arranged at the tail of the frame, the side molds can be inserted between the upper rotating frame and the lower rotating frame, and when the upper support and the lower support rotate, the two side molds can clamp the balancing weight to be placed into an open trench at the same time. The open trench template laying device has the advantages that the stability of the template is kept when the open trench template is laid, and the laying accuracy and the laying efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cast-in-place concrete formwork erection construction; specifically, the present invention relates to a cast-in-place concrete trapezoidal open ditch formwork erection construction device. Background Art

[0002] The trapezoidal open ditch is a commonly used drainage groove in the airport drainage system, which can effectively drain the accumulated water in the airport runway and surrounding areas, ensuring the safety and smoothness of airport operations. The smooth, dense and smooth slope of the trapezoidal open ditch can reduce the roughness coefficient, improve the water passing capacity, enhance the anti-seepage effect, and extend the service life of the drainage ditch.

[0003] In the construction process of cast-in-place concrete trapezoidal open ditches, traditional formwork erection and gravity-type slip form systems were used in the past. Traditional formwork erection is time-consuming and laborious. When using wooden formwork, it is easy to deform or even shift, and the turnover times of wooden formwork are relatively low; when using a gravity-type slip form system, a driving member is required, and the structure is relatively complex.

[0004] In the construction process of cast-in-place concrete trapezoidal open ditches, low-slump concrete is also directly poured, manually vibrated, leveled, and manually finished more than 3 times. This method is relatively primitive. When the slope and ditch depth are large, it is difficult to ensure the flatness and density of the slope during the construction process, and the construction efficiency is low. Summary of the Invention

[0005] In view of this, the present invention provides a cast-in-place concrete trapezoidal open ditch formwork erection construction device, thereby solving or at least alleviating the above problems existing in the prior art.

[0006] To achieve the foregoing object, the present invention provides a cast-in-place concrete trapezoidal open ditch formwork erection construction device, including side forms, slope forms, counterweights, a vehicle frame, and a placement assembly; there are two side forms, and the two side forms are respectively slidably arranged on both sides of the top of the vehicle frame. The slope form is fixedly installed on the side form. The counterweight is slidably arranged at the center of the top of the vehicle frame in the direction opposite to the movement of the vehicle frame. The placement assembly includes an upper rotating frame and a lower rotating frame. The upper rotating frame and the lower rotating frame are both rotatably arranged at the rear of the vehicle frame. The side form can be inserted between the upper rotating frame and the lower rotating frame. When the upper support and the lower support rotate, the two side forms can clamp the counterweight and lower it into the open ditch at the same time.

[0007] In the construction device for supporting the formwork of the cast-in-place concrete trapezoidal open ditch as described above, optionally, the side formwork includes a side formwork, a slope top side formwork, and a slope top side formwork. The side formwork is arranged in a U-shaped rod structure in contact with the side wall of the open ditch. The slope top side formwork is fixedly installed on the top of the side formwork. The bottom surface of the slope top side formwork is in contact with the ground. The slope top formwork is fixedly installed between the two slope top side formworks.

[0008] In the construction device for supporting the formwork of the cast-in-place concrete trapezoidal open ditch as described above, optionally, the upper rotating frame includes an upper contact plate and an upper rotating rod. The upper contact plate is arranged in a V shape adapted to the inner wall of the open ditch. There are two upper rotating rods, which are respectively fixedly installed on both sides of the upper contact plate. The bottom ends of the two upper rotating rods are respectively rotatably installed at the top end of the rear of the vehicle frame.

[0009] In the construction device for supporting the formwork of the cast-in-place concrete trapezoidal open ditch as described above, optionally, the lower rotating frame includes a lower contact plate and a lower rotating rod. The lower contact plate corresponds to the upper contact plate. There are two lower rotating rods, which are respectively fixedly installed on both sides of the lower contact plate. The bottom ends of the two upper rotating rods are respectively rotatably installed at the top end of the rear of the vehicle frame. The axial directions of the bottom ends of the lower rotating rods and the bottom ends of the upper rotating rods are the same.

[0010] In the construction device for supporting the formwork of the cast-in-place concrete trapezoidal open ditch as described above, optionally, L-shaped first chutes are opened on both sides of the upper contact plate and the lower contact plate, and the first chutes on the same surface are symmetrically distributed. Driving blocks capable of moving in the height direction of the open ditch are provided on the opposite surfaces of the upper contact plate and the lower contact plate.

[0011] In the construction device for supporting the formwork of the cast-in-place concrete trapezoidal open ditch as described above, optionally, second chutes are opened in the middle of the upper contact plate and the lower contact plate. A slider is fixedly installed on the driving block. The slider is slidably installed in the second chute. A sliding rod is fixedly installed on the slider. The sliding rod is slidably installed in the second chute. One end of the sliding rod away from the slider is rotatably installed with a connecting rod. There are two connecting rods, and one end of the two connecting rods facing away from each other is rotatably installed with a limiting rod. The limiting rod is slidably installed in the first chute.

[0012] In the construction device for supporting the formwork of the cast-in-place concrete trapezoidal open ditch as described above, optionally, elastic telescopic rods are rotatably installed on both sides of the opposite surfaces of the upper contact plate and the lower contact plate. The bottom ends of the elastic telescopic rods are rotatably installed on the limiting rods close to them. A spring is fixedly installed between the top surface of the driving block and the upper contact plate or the lower contact plate.

[0013] In a construction device for supporting formwork of a cast-in-place concrete trapezoidal open ditch as described above, optionally, moving frames are slidably arranged on both sides of the opposite surfaces of the upper contact plate and the lower contact plate, and the moving frames on the same surface are symmetrically distributed. The moving frames are fixedly connected to the limiting rods. Limiting plates are fixedly installed at both ends of the opposite surfaces of the upper contact plate and the lower contact plate. Support plates are fixedly installed at both the upper and lower ends of the moving frames, and a baffle is fixedly installed at the top end of the moving frame. The support plates can contact the bottom surface of the side formwork, and the baffle can be blocked by the limiting plate.

[0014] In a construction device for supporting formwork of a cast-in-place concrete trapezoidal open ditch as described above, optionally, brackets are fixedly installed on both sides of the top surface of the vehicle frame. The top ends of the brackets are in contact with the side formwork. The bottom end of the vehicle frame straddles both sides of the open ditch, and wheels capable of rolling on the ground are provided on both sides of the bottom end of the vehicle frame. A plurality of conveyor belts capable of transporting the side formwork, the slope formwork, and the counterweight are arranged on the top surface of the vehicle frame. One end of the conveyor belt close to the vehicle head rotates coaxially, and one end of the conveyor belt close to the vehicle tail is in a V shape.

[0015] In the construction device for supporting formwork of a cast-in-place concrete trapezoidal open ditch of the present invention, the side formwork, the slope formwork, and the counterweight can slide on the top surface of the vehicle frame and be inserted between the upper rotating frame and the lower rotating frame. The upper rotating frame and the lower rotating frame can rotate at the vehicle tail. During the process of moving below the side formwork, the slope formwork, and the counterweight, by using the self-weight of the counterweight, the two side formworks can be moved towards the counterweight direction, and the counterweight can be clamped and lowered, making the lowering more stable. Moreover, the upper rotating frame and the lower rotating frame can rotate independently, enabling the upper rotating frame and the lower rotating frame to be separated from the side formwork, facilitating the lowering of the next set of side formwork, slope formwork, and counterweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Referring to the accompanying drawings, the disclosure of the present invention will become more apparent. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the figures:

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a schematic connection structure diagram of the placement component and the side formwork of the present invention;

[0019] Figure 3 is a schematic structural diagram of the placement component of the present invention;

[0020] Figure 4 is a schematic structural diagram of the moving frame of the present invention;

[0021] Figure 5Schematic structural diagram of the side formwork of the present invention.

[0022] Reference numerals: 1, side formwork; 1-1, side formwork panel; 1-2, slope top side formwork panel; 1-3, slope top side formwork; 2, slope formwork; 3, counterweight; 4, vehicle frame; 4-1, support; 4-2, wheel; 4-3, conveyor belt; 5, placing assembly; 5-1, upper rotating frame; 5-11, upper contact plate; 5-12, upper rotating rod; 5-2, lower rotating frame; 5-21, lower contact plate; 5-22, lower rotating rod; 5-3, first chute; 5-4, second chute; 5-5, limiting plate; 5-6, moving frame; 5-7, supporting plate; 5-8, baffle; 6, driving block; 6-1, slider; 6-2, sliding rod; 6-3, connecting rod; 6-4, limiting rod; 6-5, elastic telescopic rod; 6-6, spring. Detailed implementation manners

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] As Figures 1 to 5 shown, a typical embodiment of the present invention provides a construction device for erecting a cast-in-place concrete trapezoidal open ditch formwork, including a side formwork 1, a slope formwork 2, a counterweight 3, a vehicle frame 4 and a placing assembly 5; there are two side formworks 1, and the two side formworks 1 are respectively slidably arranged on both sides of the top of the vehicle frame 4, the slope formwork 2 is fixedly installed on the side formwork 1, the counterweight 3 is slidably arranged at the center of the top of the vehicle frame 4 along the direction opposite to the movement of the vehicle frame 4, the placing assembly 5 includes an upper rotating frame 5-1 and a lower rotating frame 5-2, the upper rotating frame 5-1 and the lower rotating frame 5-2 are both rotatably arranged at the rear of the vehicle frame 4, the side formwork 1 can be inserted between the upper rotating frame 5-1 and the lower rotating frame 5-2, and when the upper support 4-1 and the lower support 4-1 rotate, the two side formworks 1 can clamp the counterweight 3 and lower it into the open ditch at the same time.

[0025] During use, first fixedly install the slope formwork 2 on the side formwork 1, place the two side formworks 1 on both sides of the top surface of the vehicle frame 4 respectively and form a V shape, and the tip of the V shape is opposite to the movement direction of the vehicle frame 4, then place the counterweight 3 at the center of the vehicle frame 4, place multiple groups of side formworks 1 and counterweights 3 so that the counterweight 3 is located between adjacent two groups of side formworks 1. The existing cast-in-place reinforced concrete on the slope of the trapezoidal open ditch adopts the construction method of casting one and leaving one, that is, the skip method;

[0026] In the initial state, the upper rotating frame 5-1 and the lower rotating frame 5-2 are located at the top of the vehicle frame 4. After the side mold 1 and the counterweight 3 are placed, a set of side molds 1 are inserted between the upper rotating frame 5-1 and the lower rotating frame 5-2, and the counterweight 3 is made to contact the slope formwork 2. The upper rotating frame 5-1 and the lower rotating frame 5-2 are deflected downward, so that the upper rotating frame 5-1 and the lower rotating frame 5-2 drive the side mold 1, the slope formwork 2 and the counterweight 3 to deflect towards the inside of the open ditch.

[0027] Since the two side molds 1 form a V shape and deflect after the counterweight 3 contacts the slope formwork 2, the gravity of the counterweight 3 can be utilized to enable the two side molds 1 to clamp the counterweight 3 and insert it into the open ditch, completing the formwork laying in the open ditch.

[0028] After a set is laid, the upper rotating frame 5-1 is flipped upward, and the vehicle frame 4 is moved so that the upper rotating frame 5-1 and the lower rotating frame 5-2 are separated from the side mold 1. After the vehicle frame 4 moves a certain distance, the lower rotating frame 5-2 can rotate without being blocked by the side mold 1 that has been laid. At this time, when the upper rotating frame 5-1 and the lower rotating frame 5-2 drive the next set of side molds 1 below again, the skip laying method can be realized, that is, laying one and skipping one. The lower rotating frame 5-2 is flipped upward to prepare for laying the next set of side molds 1.

[0029] The side mold 1 includes a side formwork 1-1, a slope top side formwork 1-2 and a slope top side formwork 1-3. The side formwork 1-1 is arranged in a U-shaped rod structure in contact with the side wall of the open ditch. The slope top side formwork 1-3 is fixedly installed on the top of the side mold 1, and the bottom surface of the slope top side formwork 1-3 contacts the ground. The slope top side formwork 1-2 is fixedly installed between the two slope top side formworks 1-3.

[0030] The height of the side mold 1, the slope top side formwork 1-2 and the slope top side formwork is the thickness of the concrete on the slope of the concrete trapezoidal open ditch, and its length is greater than the slope depth. According to the angle between the slope and the bottom of the slope, the bottom of the side mold 1 is cut into a fitting inclined plane with the bottom of the ditch, the side formwork of the side mold 1 is fitted with the slope, the slope top side formwork 1-2 and the slope top side formwork 1-3 both contact the slope top surface, and then the gravity of the counterweight 3 itself is used to press the bottom end of the side mold 1, which can effectively prevent the formwork running of the slope formwork 2 at the bottommost part and cause low pouring quality.

[0031] The upper rotating frame 5-1 includes an upper contact plate 5-11 and an upper rotating rod 5-12. The upper contact plate 5-11 is arranged in a V shape adapted to the inner wall of the open ditch. There are two upper rotating rods 5-12, which are respectively fixedly installed on both sides of the upper contact plate 5-11. The bottom ends of the two upper rotating rods 5-12 are respectively rotatably installed at the top end of the rear of the vehicle frame 4.

[0032] When the upper rotating rod 5-12 rotates, it can drive the upper contact plate 5-11 to flip, so that the top surface of the side mold 1 can flip, facilitating the flipping of the side mold 1 and the counterweight 3 into the open ditch.

[0033] The lower rotating frame 5-2 includes a lower contact plate 5-21 and a lower rotating rod 5-22. The lower contact plate 5-21 corresponds to the upper contact plate 5-11. There are two lower rotating rods 5-22, which are respectively fixedly installed on both sides of the lower contact plate 5-21. The bottom ends of the two upper rotating rods 5-12 are respectively rotatably installed at the top of the rear of the vehicle frame 4. The axial directions of the bottom ends of the lower rotating rod 5-22 and the upper rotating rod 5-12 are the same.

[0034] When the lower rotating rod 5-22 rotates, it can drive the lower contact plate 5-21 to flip, so that the bottom surface of the side mold 1 can flip, and can support the bottom surface of the side mold 1, enabling the side mold 1 to remain stable during flipping. At the same time, the upper contact plate 5-11 and the lower contact plate 5-21 respectively clamp both sides of the side mold 1, making the side mold 1 more stable when being lowered;

[0035] Motors are provided on the opposite sides of the bottom ends of the lower rotating rod 5-22 and the upper rotating rod 5-12. By starting the motors, the flipping of the upper rotating frame 5-1 and the lower rotating frame 5-2 is controlled, enabling the side mold 1 to be conveniently inserted into the open ditch.

[0036] L-shaped first chutes 5-3 are provided on both sides of the upper contact plate 5-11 and the lower contact plate 5-21, and the first chutes 5-3 on the same surface are symmetrically distributed. Driving blocks 6 that can move in the height direction of the open ditch are provided on the opposite surfaces of the upper contact plate 5-11 and the lower contact plate 5-21.

[0037] When the counterweight 3 flips, it contacts the top surface of the driving block 6 and presses down the driving block 6 by the weight of the counterweight 3 itself, causing the driving block 6 to move downward.

[0038] Second chutes 5-4 are provided in the middle of the upper contact plate 5-11 and the lower contact plate 5-21. A slider 6-1 is fixedly installed on the driving block 6. The slider 6-1 is slidably installed in the second chute 5-4. A sliding rod 6-2 is fixedly installed on the slider 6-1. The sliding rod 6-2 is slidably installed in the second chute 5-4. One end of the sliding rod 6-2 away from the slider 6-1 is rotatably installed with a connecting rod 6-3. There are two connecting rods 6-3, and the opposite ends of the two connecting rods 6-3 are rotatably installed with a limiting rod 6-4. The limiting rod 6-4 is slidably installed in the first chute 5-3.

[0039] When the driving block 6 is pressed down by the counterweight 3, the slider 6-1 drives the sliding rod to slide in the second chute 5-4, and makes the end of the connecting rod 6-3 connected to the sliding rod move downward. The end of the connecting rod 6-3 away from the sliding rod drives the limiting rod 6-4 to slide in the first chute 5-3;

[0040] When the limiting rod 6-4 moves horizontally in the first sliding groove 5-3, the side molds 1 on both sides can move towards the counterweight 3 to clamp the counterweight 3. When the limiting rod 6-4 moves longitudinally in the first sliding groove 5-3, the side mold 1 can drive the counterweight 3 to be lowered into the open ditch, and insert the side mold 1 and the counterweight 3 into the open ditch to complete the laying work of the open ditch formwork.

[0041] Elastic telescopic rods 6-5 are rotatably installed on both sides of the back surfaces of the upper contact plate 5-11 and the lower contact plate 5-21. The bottom ends of the elastic telescopic rods 6-5 are rotatably installed on the limiting rod 6-4 close to them, and a spring 6-6 is fixedly installed between the top surface of the driving block 6 and the upper contact plate 5-11 or the lower contact plate 5-21.

[0042] When the driving block 6 moves downward, the spring 6-6 can be stretched. The driving block 6 continues to move downward, so that the elastic telescopic rod 6-5 can be stretched. After the side plate is laid, the spring 6-6 resets, which can drive the driving block 6 to move upward, so that the limiting rod 6-4 slides to the corner of the first sliding groove 5-3. At this time, the elastic telescopic rod 6-5 resets, so that the limiting rod 6-4 is pulled to the end of the first sliding groove 5-3, allowing the driving block 6 to reset and prepare for laying the next group of side molds 1.

[0043] Moving frames 5-6 are slidably arranged on both sides of the opposite surfaces of the upper contact plate 5-11 and the lower contact plate 5-21, and the moving frames 5-6 on the same surface are symmetrically distributed. The moving frames 5-6 are fixedly connected to the limiting rod 6-4. Limit plates 5-5 are fixedly installed at both ends of the opposite surfaces of the upper contact plate 5-11 and the lower contact plate 5-21. Support plates 5-7 are fixedly installed at the upper and lower ends of the moving frames 5-6, and a baffle 5-8 is fixedly installed at the top end of the moving frames 5-6. The support plates 5-7 can contact the bottom surface of the side form 1-1, and the baffle 5-8 can be blocked by the limit plate 5-5.

[0044] When the side mold 1 is inserted between the upper rotating frame 5-1 and the lower rotating frame 5-2, the side mold 1 contacts the support plate 5-7. When the driving block 6 moves downward, it drives the limiting rod 6-4 to move horizontally in the first sliding groove 5-3, and drives the moving frame 5-6 to move towards the counterweight 3 through the limiting rod 6-4, so that the slope form 2 contacts the counterweight 3 and clamps the counterweight 3, facilitating formwork laying;

[0045] When the driving block 6 continues to move downward, the baffle 5-8 contacts the limit plate 5-5 to control the depth of the side mold 1 inserted into the open ditch. After the insertion is completed, the upper rotating frame 5-1 is turned upward, and the vehicle frame 4 is moved, so that the upper rotating frame 5-1 and the lower rotating frame 5-2 are separated from the side mold 1. When the vehicle frame 4 moves a certain distance, the lower rotating frame 5-2 is turned upward to prepare for laying the next group of side molds 1.

[0046] On both sides of the top surface of the vehicle frame 4, brackets 4-1 are fixedly installed. The top ends of the brackets 4-1 are in contact with the side templates 1-1. The bottom end of the vehicle frame 4 straddles both sides of the open ditch, and on both sides of the bottom end of the vehicle frame 4, wheels 4-2 capable of rolling on the ground are provided. On the top surface of the vehicle frame 4, multiple conveyor belts 4-3 capable of transporting the side molds 1, slope templates 2, and counterweight blocks 3 are provided. One end of the conveyor belt 4-3 close to the vehicle head rotates coaxially, and one end of the conveyor belt 4-3 close to the vehicle tail is V-shaped.

[0047] When placing the side mold 1, slope template 2, and counterweight block 3 on the top surface of the vehicle frame 4, the bracket 4-1 is in contact with the top surface of the side mold 1, so that the side mold 1 will not tip over when moving on the vehicle frame 4. A servo motor can be installed at the coaxially arranged end of the conveyor belt 4-3, so that the conveyor belt 4-3 can rotate, moving the side mold 1, slope template 2, and counterweight block 3 towards the vehicle tail, enabling the side mold 1 to be inserted into the upper rotating frame 5-1 and the lower rotating frame 5-2. When the upper rotating frame 5-1 and the lower rotating frame 5-2 do not deflect, they can block the movement of the side mold 1, allowing the counterweight block 3 to approach the side mold 1, facilitating the insertion of the side mold 1, slope template 2, and counterweight block 3 into the open ditch to complete the laying work. The provision of the wheels 4-2 facilitates the movement of the vehicle frame 4 on the ground.

[0048] The technical scope of the present invention is not limited only to the content in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications should all fall within the scope of the present invention.

Claims

1. A cast-in-place concrete trapezoidal open ditch formwork support construction device, characterized in that: The invention comprises a side mold (1), a slope mold (2), a counterweight (3), a frame (4) and a placement component (5); the side mold (1) is provided with two, the two side molds (1) are respectively slidably arranged on both sides of the top end of the frame (4), the slope mold (2) is fixedly mounted on the side mold (1), the counterweight (3) is slidably arranged at the center of the top end of the frame (4) along the direction opposite to the movement of the frame (4), the placement component (5) comprises an upper rotating frame (5-1) and a lower rotating frame (5-2), the upper rotating frame (5-1) and the lower rotating frame (5-2) are both rotatably arranged at the rear end of the frame (4), the side mold (1) can be inserted between the upper rotating frame (5-1) and the lower rotating frame (5-2), and when the upper bracket (4-1) and the lower bracket (4-1) rotate, the two side molds (1) can clamp the counterweight (3) and simultaneously lower them into the open ditch.

2. A cast-in-place concrete trapezoidal open ditch formwork support construction device as claimed in claim 1, characterized in that: The side form (1) comprises a side form (1-1), a slope top side form (1-2) and a slope top side form (1-3); the side form (1-1) is provided with a U-shaped rod structure in contact with the side wall of the open ditch; the slope top side form (1-3) is fixedly installed on the top of the side form (1); the bottom surface of the slope top side form (1-3) is in contact with the ground; and the slope top side form (1-2) is fixedly installed between two slope top side form (1-3).

3. A cast-in-place concrete trapezoidal open ditch formwork support construction device as claimed in claim 2, characterized in that: The upper rotating frame (5-1) comprises an upper contact plate (5-11) and an upper rotating rod (5-12); the upper contact plate (5-11) is arranged in a V shape adapted to the inner wall of the open ditch; two upper rotating rods (5-12) are provided and are respectively fixedly mounted on both sides of the upper contact plate (5-11); the bottom ends of the two upper rotating rods (5-12) are respectively rotatably mounted on the top end of the rear end of the vehicle frame (4).

4. A cast-in-place concrete trapezoidal open ditch formwork support construction device as claimed in claim 3, characterized in that: The lower rotating frame (5-2) comprises a lower contact plate (5-21) and a lower rotating rod (5-22), the lower contact plate (5-21) corresponds to the upper contact plate (5-11), two lower rotating rods (5-22) are provided and are respectively fixedly mounted on both sides of the lower contact plate (5-21), the bottom ends of the two upper rotating rods (5-12) are respectively rotatably mounted on the top end of the rear end of the frame (4), and the bottom end of the lower rotating rod (5-22) and the bottom end of the upper rotating rod (5-12) are axially consistent.

5. A cast-in-place concrete trapezoidal open ditch formwork support construction device as claimed in claim 4, characterized in that: L-shaped first sliding grooves (5-3) are provided on both sides of the upper contact plate (5-11) and the lower contact plate (5-21), and the first sliding grooves (5-3) on the same surface are symmetrically distributed, and the opposite surfaces of the upper contact plate (5-11) and the lower contact plate (5-21) are provided with driving blocks (6) that can move in the height direction of the open groove.

6. A cast-in-place concrete trapezoidal open ditch formwork support construction device as claimed in claim 5, characterized in that: A second slide groove (5-4) is provided in the middle of the upper contact plate (5-11) and the lower contact plate (5-21); a slider (6-1) is fixedly mounted on the driving block (6); the slider (6-1) is slidably mounted in the second slide groove (5-4); a sliding rod (6-2) is fixedly mounted on the slider (6-1); the sliding rod (6-2) is slidably mounted in the second slide groove (5-4); a connecting rod (6-3) is rotatably mounted on one end of the sliding rod (6-2) away from the slider (6-1); two connecting rods (6-3) are provided, and a limiting rod (6-4) is rotatably mounted on the opposite ends of the two connecting rods (6-3); and the limiting rod (6-4) is slidably mounted in the first slide groove (5-3).

7. A cast-in-place concrete trapezoidal open ditch formwork support construction device as claimed in claim 6, characterized in that: Elastic telescopic rods (6-5) are rotatably mounted on both sides of the back surfaces of the upper contact plate (5-11) and the lower contact plate (5-21); the bottom end of the elastic telescopic rod (6-5) is rotatably mounted on the limit rod (6-4) adjacent thereto; and a spring (6-6) is fixedly mounted between the top surface of the driving block (6) and the upper contact plate (5-11) or the lower contact plate (5-21).

8. A cast-in-place concrete trapezoidal open ditch formwork support construction device as claimed in claim 5, characterized in that: Both sides of the opposing surfaces of the upper contact plate (5-11) and the lower contact plate (5-21) are slidably provided with moving frames (5-6), and the moving frames (5-6) on the same surface are symmetrically distributed, the moving frames (5-6) are fixedly connected to the limiting rod (6-4), both ends of the opposing surfaces of the upper contact plate (5-11) and the lower contact plate (5-21) are fixedly installed with limiting plates (5-5), the upper and lower ends of the moving frames (5-6) are fixedly installed with supporting plates (5-7), the top end of the moving frames (5-6) is fixedly installed with a baffle plate (5-8), the supporting plate (5-7) can contact the bottom surface of the side template (1-1), and the baffle plate (5-8) can be blocked by the limiting plate (5-5).

9. A cast-in-place concrete trapezoidal open ditch formwork support construction device as claimed in claim 1, characterized in that: Brackets (4-1) are fixedly mounted on both sides of the top surface of the frame (4), the top of the bracket (4-1) is in contact with the side template (1-1), the bottom of the frame (4) spans both sides of the open ditch, and wheels (4-2) capable of rolling on the ground are provided on both sides of the bottom of the frame (4), and the top surface of the frame (4) is provided with a plurality of groups of conveyor belts (4-3) capable of transporting the side template (1), the slope template (2) and the counterweight (3), the end of the conveyor belt (4-3) close to the front of the vehicle is coaxially rotatable, and the end of the conveyor belt (4-3) close to the rear of the vehicle is V-shaped.

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