Reinforced concrete drainage ditch internal mold fixing device
By designing a reinforced concrete drainage ditch inner formwork fixing device that includes components such as connecting plates, support plates, adjusting plates, and springs, the problem of low construction efficiency caused by errors in the early stage of construction was solved, and the stable fixing and flexible adjustment of the inner formwork were achieved, thereby improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI INT ECONOMIC & TECH COOP CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-26
AI Technical Summary
The existing reinforced concrete drainage ditch formwork fixing device had discrepancies between the construction dimensions and the design drawings in the early stages of construction due to errors in rebar tying and geological conditions. This required rectification and reduced work efficiency.
A fixing device consisting of components such as connecting plates, support plates, adjusting plates, positioning plates, and springs is adopted. Through the sliding cooperation of the adjusting plates and positioning plates, the energy storage of the springs and the insertion of the positioning shaft into the soil are used to achieve stable fixing and flexible adjustment of the inner mold.
It improves the stability and adaptability of the inner mold during construction, reduces the rectification work caused by errors, and improves construction efficiency.
Smart Images
Figure CN224281518U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixing the inner mold of drainage ditches, and in particular to a fixing device for the inner mold of reinforced concrete drainage ditches. Background Technology
[0002] The inner formwork of a reinforced concrete drainage ditch refers to the model used to shape and define the internal dimensions of the ditch during its construction. It is typically made of materials such as wood, steel, or plastic and is placed within the ditch's formwork system to ensure that the concrete forms a smooth, regular inner surface as designed during pouring. During concrete pouring, significant impact and lateral pressure are generated. If the inner formwork is not reliably secured, it is prone to displacement and deformation, leading to dimensional deviations and irregular shapes in the drainage ditch, affecting drainage efficiency and project quality. The fixing device firmly secures the inner formwork in its designed position, maintaining stability during pouring.
[0003] When using the inner formwork fixing device for reinforced concrete drainage ditches, first clean the site and check the reinforcement binding. Transport the inner formwork and fixing device components to the site to check their integrity. Then, place the inner formwork into the reinforcement cage according to the design dimensions for initial positioning, install the bottom support components, adjust the screws to make the bottom of the inner formwork reach the design elevation, and then lock it.
[0004] In existing technologies, some reinforced concrete drainage ditch formwork fixing devices suffer from various problems during the early stages of construction. These problems arise from differences in worker techniques and rebar type compatibility during rebar tying, coupled with geological conditions affecting foundation excavation, leading to discrepancies between actual construction dimensions and design drawings. This necessitates adjustments to rebar tying or foundation work, resulting in reduced work efficiency. Therefore, to address these shortcomings, a new reinforced concrete drainage ditch formwork fixing device is proposed to solve these issues. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a reinforced concrete drainage ditch inner formwork fixing device, which aims to improve the problem that some existing reinforced concrete drainage ditch inner formwork fixing devices require disassembly and adjustment when errors or offsets occur during use, resulting in reduced work efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A reinforced concrete drainage ditch inner formwork fixing device includes two connecting plates. The top ends of the two connecting plates are fixedly connected to two support plates by two bolts. The bottom sides of the two support plates are slidably connected to two adjusting plates. The top sides of the adjusting plates are fixedly connected to two right-angle plates. The top sides of the adjusting plates are fixedly connected to a top plate. The middle of the top plate is fixedly connected to a gripping plate. The inside of the top plate is slidably connected to a sliding frame. The left and right ends of the sliding frame are slidably connected to reset components. The left and right ends of the top plate are slidably connected to positioning plates. The top side of the positioning plate is fixedly connected to a rhombus plate.
[0008] As a further description of the above technical solution:
[0009] A trapezoidal plate is fixedly connected to the bottom side of the connecting plate. Two positioning shafts are fixedly connected inside the trapezoidal plate. A spring is sleeved on the outside of the positioning shafts. Two fixing plates are slidably connected to the outside of the two positioning shafts. A triangular block is fixedly connected to the opposite side of each of the two fixing plates.
[0010] As a further description of the above technical solution:
[0011] Each of the multiple reset components includes a positioning rod, and the external parts of the multiple positioning rods are slidably connected to the left and right ends of the two sliding frames, and a spring is sleeved on the external part of the positioning rod;
[0012] As a further description of the above technical solution:
[0013] The outer sides of the two positioning rods are respectively fixedly connected to the inside of the left and right ends of the grip plate, and the top ends of the two springs are fixedly connected to the top side of the inner wall of the grip plate.
[0014] As a further description of the above technical solution:
[0015] The two rhomboid plates are externally slidably connected to the inside of the sliding frame, and multiple limiting openings are provided on the adjacent sides of the two support plates;
[0016] As a further description of the above technical solution:
[0017] The positioning plate is externally slidably connected to the inside of the limiting opening, and the support plate is externally slidably connected to the inner walls of the two right-angle plates.
[0018] As a further description of the above technical solution:
[0019] The two fixed plates are externally slidably connected to the inner wall of the trapezoidal plate, and the two triangular blocks are externally slidably connected to the inner wall of the trapezoidal plate.
[0020] As a further description of the above technical solution:
[0021] The outer side of the sliding frame is slidably connected to the inside of the grip plate, and the bottom ends of the two springs are respectively fixedly connected to the left and right ends of the top side of the sliding frame.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, by applying a force in the opposite direction to the positioning plate to make it slide, the adjusting plate can be pushed to slide, and the distance between the two adjusting plates can be adjusted to meet the width requirements of the drainage ditch. At this time, the force pushing the sliding frame is released, and the force of the spring returning to its original position is transmitted to the positioning plate and locked inside the limiting opening, so as to flexibly adapt to different needs and improve work efficiency.
[0024] 2. In this utility model, by inserting the trapezoidal plate into the soil and simultaneously squeezing the triangular block, the triangular block can push the fixed plate to slide and squeeze the second spring along the positioning axis, so that the second spring can store elastic potential energy, and then give the triangular block a force in the opposite direction to hold it in the soil, thereby improving the overall stability. Attached Figure Description
[0025] Figure 1 This is a perspective view of a reinforced concrete drainage ditch inner formwork fixing device proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the right-angle plate of the inner formwork fixing device for reinforced concrete drainage ditches proposed in this utility model;
[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0028] Figure 4 This is a schematic diagram of the positioning rod of the inner formwork fixing device for reinforced concrete drainage ditch proposed in this utility model;
[0029] Figure 5 This is a schematic diagram of the structure of the fixing plate of the inner formwork fixing device for reinforced concrete drainage ditch proposed in this utility model.
[0030] Legend:
[0031] 1. Connecting plate; 2. Support plate; 3. Adjusting plate; 4. Right-angle plate; 5. Top plate; 6. Grip plate; 7. Sliding frame; 8. Positioning rod; 9. Spring 1; 10. Positioning plate; 11. Rhombus plate; 12. Limiting opening; 13. Trapezoidal plate; 14. Positioning shaft; 15. Spring 2; 16. Fixing plate; 17. Triangular block; 18. Bolt. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figures 1 to 3 This utility model provides an embodiment of a reinforced concrete drainage ditch inner formwork fixing device, comprising two connecting plates 1, the overall length of the drainage ditch being determined by the positional length of the two connecting plates 1. Two support plates 2 are fixedly connected to the top of each of the two connecting plates 1 by two bolts 18, connecting the two connecting plates 1 and the two support plates 2 together. Two adjusting plates 3 are slidably connected to the bottom sides of the two support plates 2, the distance between the two adjusting plates 3 being the width of the drainage ditch, while the distance between the connecting plates 1 and the adjusting plates 3 is the foundation of the drainage ditch. Two right-angle plates 4 are fixedly connected to the top sides of the adjusting plates 3 by welding, providing support for the right-angle plates 4. The outer surfaces of the support plates 2 are slidably connected to the inner walls of the two right-angle plates 4, allowing the right-angle plates 4 to slide stably, and thus allowing the adjusting plates 3 to slide stably. A top plate 5 is fixedly connected to the top side of the adjusting plates 3 by welding, providing support for the top plate 5. A gripping plate 6 is fixedly connected to the middle of the top plate 5 by welding, providing support for the gripping plate 6 and facilitating its movement. A sliding frame 7 is slidably connected inside the top plate 5, allowing it to slide stably up and down due to the constraint of the top plate 5. The sliding frame 7 is externally slidably connected inside the gripping plate 6, preventing it from slipping off.
[0034] Reference Figures 2 to 4 The sliding frame 7 has reset components slidably connected to both its left and right ends, providing a reset force for the sliding frame 7. Each reset component includes a positioning rod 8, with the outer surfaces of two positioning rods 8 fixedly connected to the inner surfaces of the left and right ends of the grip plate 6 via welding, thus providing support for the positioning rods 8. The outer surfaces of the positioning rods 8 are slidably connected to the inner surfaces of the left and right ends of the two sliding frames 7, guiding the sliding of the sliding frame 7. A spring 9 is sleeved on the outer surface of each positioning rod 8, restricting the spring 9 so that it can bear force as it is. The bottom ends of the two springs 9 are fixedly connected to the top left and right ends of the sliding frame 7. As the sliding frame 7 slides, it compresses the springs 9, allowing the springs 9 to store elastic potential energy, which then provides a force in the opposite direction to reset the sliding frame 7.
[0035] The top ends of two springs 9 are fixedly connected to the top side of the inner wall of the grip plate 6. By fixing the springs 9, the springs 9 can be evenly stressed. Positioning plates 10 are slidably connected to both ends of the top plate 5. The positioning plates 10 can slide stably due to the constraint of the top plate 5. A rhomboid plate 11 is fixedly connected to the top side of the positioning plate 10 by welding, thus providing support for the rhomboid plate 11. The two rhomboid plates 11 are slidably connected to the inside of the sliding frame 7. During the sliding process, the sliding frame 7 abuts against the rhomboid plates 11, causing the two rhomboid plates 11 to slide towards each other. Multiple limiting openings 12 are provided on the adjacent sides of the two support plates 2. These limiting openings 12 are adapted to the positioning plates 10. The outside of the positioning plate 10 is slidably connected to the inside of the limiting openings 12. The limiting openings 12 and the positioning plates 10 are adapted to each other, allowing the limiting openings 12 to restrict and engage the positioning plates 10.
[0036] Reference Figure 1 and Figure 5 A trapezoidal plate 13 is fixedly connected to the bottom side of the connecting plate 1 by welding, providing support for the trapezoidal plate 13 and allowing it to be inserted into the soil. Two positioning shafts 14 are fixedly connected internally to the trapezoidal plate 13 by welding, ensuring stable guidance. A second spring 15 is sleeved on the outside of each positioning shaft 14, ensuring even force distribution. Two fixing plates 16 are slidably connected to the outside of the two positioning shafts 14, guiding their sliding. The two fixing plates 16 are slidably connected to the inner wall of the trapezoidal plate 13, allowing stable sliding. Triangular blocks 17 are fixedly connected to the opposite sides of each fixing plate 16 by welding, providing support and preventing slippage. The two triangular blocks 17 are externally slidably connected to the inner wall of the trapezoidal plate 13. The trapezoidal plate 13 restricts the triangular blocks 17 so that they can slide stably.
[0037] Working principle: First, connect the two connecting plates 1 and the two supporting plates 2 with four bolts 18, then lock them into the drainage ditch, insert the trapezoidal plate 13 into the soil, and at the same time squeeze the triangular block 17, so that the triangular block 17 can push the fixed plate 16 to slide, and squeeze the second spring 15 along the positioning axis 14, so that the second spring 15 can store elastic potential energy, and then give the triangular block 17 a force in the opposite direction to hold it in the soil, thereby improving the overall stability;
[0038] At this point, based on the required drainage width of the drainage ditch, by gripping the handle 6 and applying an upward sliding force to the sliding frame 7, the internal cavity is used to push the two rhomboid plates 11 to slide towards each other, thereby causing the positioning plate 10 to slide and move away from the inside of the limiting opening 12. During the sliding process of the sliding frame 7, the two connected springs 9 are also compressed, allowing the two springs 9 to store elastic potential energy, which then gives the positioning plate 10 a force in the opposite direction to slide. At this time, the adjusting plate 3 can be pushed to slide, adjusting the distance between the two adjusting plates 3 to meet the width requirements of the drainage ditch. Then, the force of pushing the sliding frame 7 is released, and the force of the springs 9 returning is transmitted to the positioning plate 10 and engages inside the limiting opening 12, thus flexibly adapting to different needs.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for fixing the inner formwork of a reinforced concrete drainage ditch, comprising two connecting plates (1), characterized in that: The top of each of the two connecting plates (1) is fixedly connected to two support plates (2) by two bolts (18). The bottom of the two support plates (2) is slidably connected to two adjusting plates (3). The top of the adjusting plates (3) is fixedly connected to two right-angle plates (4). The top of the adjusting plates (3) is fixedly connected to a top plate (5). The middle of the top plate (5) is fixedly connected to a grip plate (6). The inside of the top plate (5) is slidably connected to a sliding frame (7). The left and right ends of the sliding frame (7) are slidably connected to a reset component. The left and right ends of the top plate (5) are slidably connected to a positioning plate (10). The top of the positioning plate (10) is fixedly connected to a rhombus plate (11).
2. The inner formwork fixing device for reinforced concrete drainage ditch according to claim 1, characterized in that: A trapezoidal plate (13) is fixedly connected to the bottom side of the connecting plate (1). Two positioning shafts (14) are fixedly connected inside the trapezoidal plate (13). A spring (15) is sleeved on the outside of the positioning shafts (14). Two fixing plates (16) are slidably connected to the outside of the two positioning shafts (14). A triangular block (17) is fixedly connected to the opposite side of the two fixing plates (16).
3. The inner formwork fixing device for reinforced concrete drainage ditch according to claim 2, characterized in that: Each of the reset components includes a positioning rod (8), and the outside of the multiple positioning rods (8) is slidably connected to the inside of the left and right ends of the two sliding frames (7), and a spring (9) is sleeved on the outside of the positioning rod (8).
4. The inner formwork fixing device for reinforced concrete drainage ditch according to claim 3, characterized in that: The two positioning rods (8) are fixedly connected to the inside of the left and right ends of the grip plate (6), and the top ends of the two springs (9) are fixedly connected to the top side of the inner wall of the grip plate (6).
5. The inner formwork fixing device for reinforced concrete drainage ditch according to claim 1, characterized in that: The two rhomboid plates (11) are externally slidably connected to the inside of the sliding frame (7), and multiple limiting openings (12) are provided on the adjacent side of the two support plates (2).
6. The inner formwork fixing device for reinforced concrete drainage ditch according to claim 5, characterized in that: The external part of the positioning plate (10) is slidably connected to the inside of the limiting opening (12), and the external part of the support plate (2) is slidably connected to the inner walls of the two right-angle plates (4).
7. The inner formwork fixing device for reinforced concrete drainage ditch according to claim 2, characterized in that: The two fixed plates (16) are externally slidably connected to the inner wall of the trapezoidal plate (13), and the two triangular blocks (17) are externally slidably connected to the inner wall of the trapezoidal plate (13).
8. The inner formwork fixing device for reinforced concrete drainage ditch according to claim 3, characterized in that: The sliding frame (7) is slidably connected to the inside of the grip plate (6), and the bottom ends of the two springs (9) are respectively fixedly connected to the left and right ends of the top side of the sliding frame (7).