Inner mold core for curing and forming RPC drainage ditch

Abstract

The utility model belongs to the field of RPC drainage ditch production molds, and particularly relates to an RPC drainage ditch maintenance forming inner mold core which comprises a mounting plate, a frame type portal frame is fixedly connected to the mounting plate, an n-shaped inner mold core plate is fixedly connected to the top of the frame type portal frame, and the inner mold core plate has the elastic deformation characteristic. The inner sides of the two side walls of the inner mold core plate are fixedly connected with mold frames, and the two mold frames are connected with mold frame driving mechanisms. According to the RPC drainage ditch maintenance forming inner mold core, the two side walls of the inner mold core plate can be separated from the two inner side walls of a RPC drainage ditch finished product, so that the contact area between the inner mold core plate and the RPC drainage ditch finished product is greatly reduced, the taking-out difficulty of the RPC drainage ditch finished product is effectively reduced, and the RPC drainage ditch finished product is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to an inner mold core for RPC drainage ditch maintenance molding, belonging to the field of RPC drainage ditch production molds. Background Technology

[0002] RPC (Reactive Powder Concrete) drainage ditches are prefabricated drainage facilities made of high-strength reactive powder concrete, characterized by their lightweight, high strength, and excellent durability. RPC drainage ditches are mainly used in highways, urban roads, cable trenches, and green belts to drain accumulated water. The production process involves casting concrete using specialized molds. Existing drainage ditch curing molds only allow for the demolding of the outer formwork; the inner core is usually a stationary structure. After demolding, there remains a large contact area between the inner core and the finished drainage ditch, making removal difficult and potentially damaging if not handled properly.

[0003] For example, Chinese utility model patent CN206287420U discloses a resin concrete drainage ditch mold. After molding, the male and female molding plates are demolded by pulling the demolding handle, and the side plates are demolded by pulling the demolding handle again, and then the product is removed from the mold core molding plate. Because there is still a large area of ​​contact between the product and the mold core molding plate when removing the product, it is difficult to remove the product, and improper operation may even lead to damage to the product. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an RPC drainage ditch maintenance molding inner mold core that can demold the inner side of the product.

[0005] The RPC drainage ditch maintenance molding inner mold core of this utility model includes a mounting plate, on which a frame-type gantry is fixedly connected. A Z-shaped inner mold core plate is fixedly connected to the top of the frame-type gantry. The inner mold core plate has elastic deformation characteristics. Mold frames are fixedly connected to the inner sides of both side walls of the inner mold core plate. Both mold frames are connected to a mold frame drive mechanism.

[0006] Furthermore, the frame-type gantry frame is connected with multiple reinforcing ribs.

[0007] Furthermore, the inner mold core plate is a one-piece molded stainless steel plate.

[0008] Furthermore, a support block that fits against the bottom of the inner mold core plate is fixedly connected to the mold frame.

[0009] Furthermore, there are two mold frame drive mechanisms, which are symmetrical about each other.

[0010] Furthermore, the mold frame drive mechanism includes a bushing fixedly connected to the mounting plate, a rotating shaft rotatably connected inside the bushing, an upper rocker arm fixedly connected to the upper end of the rotating shaft, push-pull rods hinged to both ends of the upper rocker arm via pins, and the other ends of the two push-pull rods hinged to their corresponding mold frames via pins. A lower rocker arm fixedly connected to the lower end of the rotating shaft, and a drive rod hinged to the lower rocker arm via pins.

[0011] Furthermore, both mold frames are provided with guide blocks, and the mounting plate is provided with strip-shaped sliding holes that correspond to and are adapted to the two guide blocks.

[0012] Working principle and process:

[0013] During concrete pouring, the push-pull rods provide stable support to the formwork, thus holding the inner core plate against its side walls and preventing the upper part of the inner core plate from being elastically deformed by the concrete pressure, thereby preventing shrinkage during concrete pouring. During demolding, pulling the drive rod causes the lower swing rod to swing, which in turn causes the upper swing rod to swing via the pivot. This, in turn, causes the two push-pull rods to pull the two formwork frames slightly inward, resulting in elastic deformation and slight inward deflection of the side walls of the inner core plate (due to the fit clearance between the upper swing rod and the push-pull rod, as well as between the push-pull rod and the formwork frame, there is no interference with the slight deflection of the formwork frame with the inner core plate). This separates the side walls of the inner core plate from the two inner side walls of the RPC drainage ditch finished product, allowing the RPC drainage ditch finished product to be removed.

[0014] The advantages of this utility model compared with the prior art are:

[0015] The RPC drainage ditch curing molding inner mold core described in this utility model can separate the two side walls of the inner mold core plate from the two inner side walls of the finished RPC drainage ditch, thereby greatly reducing the contact area between the inner mold core plate and the finished RPC drainage ditch, effectively reducing the difficulty of removing the finished RPC drainage ditch, and preventing product damage. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a front view of an embodiment of the present utility model.

[0018] In the diagram: 1. Mounting plate; 2. Lower swing arm; 3. Bushing; 4. Rotating shaft; 5. Upper swing arm; 6. Drive rod; 7. Strip-shaped sliding hole; 8. Guide block; 9. Push-pull rod; 10. Support block; 11. Inner mold core plate; 12. Mold frame; 13. Frame-type gantry frame; 14. Finished RPC drainage ditch; 15. Reinforcing rib. Detailed Implementation

[0019] The embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0020] Example 1:

[0021] like Figure 1 , Figure 2 As shown, the RPC drainage ditch maintenance molding inner mold core of this utility model includes a mounting plate 1, a frame-type gantry frame 13 is fixedly connected to the mounting plate 1, a Z-shaped inner mold core plate 11 is fixedly connected to the top of the frame-type gantry frame 13, the inner mold core plate 11 has elastic deformation characteristics, and mold frames 12 are fixedly connected to the inner sides of both side walls of the inner mold core plate 11, and both mold frames 12 are connected to a mold frame drive mechanism.

[0022] During concrete pouring, the formwork drive mechanism provides stable support for the formwork 12, thereby holding the two side walls of the inner mold core plate 11 against it. This prevents the upper end of the inner mold core plate 11 from being elastically deformed by the concrete pressure, thus preventing shrinkage during concrete pouring. During demolding, the formwork drive mechanism drives the two formwork 12 to slightly deflect inward, thereby causing the two side walls of the inner mold core plate 11 to elastically deform and slightly deflect inward, separating the two side walls of the inner mold core plate 11 from the two inner side walls of the RPC drainage ditch finished product 14. Then, the RPC drainage ditch finished product 14 can be removed.

[0023] Example 2:

[0024] like Figure 1 , Figure 2 As shown, based on Example 1,

[0025] Furthermore, the frame-type gantry frame 13 is connected with multiple reinforcing ribs 15. The reinforcing ribs 15 can increase the structural stability of the frame-type gantry frame 13.

[0026] Furthermore, the inner mold core plate 11 is an integrally formed stainless steel sheet, which has high strength, corrosion resistance, and good elastic deformation performance.

[0027] Furthermore, a support block 10 is fixedly connected to the mold frame 12, which fits against the bottom of the inner mold core plate 11. The support block 10 can effectively support the bottom wall of the inner mold core plate 11, thereby preventing the bottom wall of the inner mold core plate 11 from being deformed by concrete pressure.

[0028] Furthermore, there are two mold frame drive mechanisms, which are symmetrically arranged front and rear. The two mold frame drive mechanisms operate synchronously, thereby improving the driving stability of the mold frame 12.

[0029] Furthermore, the mold frame drive mechanism includes a bushing 3 fixedly connected to the mounting plate 1, a rotating shaft 4 rotatably connected inside the bushing 3, an upper swing rod 5 fixedly connected to the upper end of the rotating shaft 4, push-pull rods 9 hinged to both ends of the upper swing rod 5 by pins, and the other ends of the two push-pull rods 9 hinged to their corresponding mold frame 12 by pins. A lower swing rod 2 is fixedly connected to the lower end of the rotating shaft 4, and a drive rod 6 is hinged to the lower swing rod 2 by pins. During concrete pouring, the push-pull rod 9 provides stable support for the formwork 12, thereby holding the two side walls of the inner mold core plate 11 against it and preventing the upper end of the inner mold core plate 11 from being elastically deformed by the concrete pressure, thus preventing shrinkage during concrete pouring. During demolding, by pulling the drive rod 6, the lower swing rod 2 swings, which in turn drives the upper swing rod 5 to swing through the rotating shaft 4. This causes the two push-pull rods 9 to pull the two molds 12 slightly inward, thereby causing the two side walls of the inner mold core plate 11 to elastically deform and slightly deflect inward (since there are fitting gaps between the upper swing rod 5 and the push-pull rod 9, as well as between the push-pull rod 9 and the mold 12, they will not interfere with the slight deflection of the mold 12 with the inner mold core plate 11), so that the two side walls of the inner mold core plate 11 separate from the two inner side walls of the RPC drainage ditch finished product 14, and then the RPC drainage ditch finished product 14 can be taken out.

[0030] Furthermore, each of the two mold frames 12 is provided with a guide block 8, and the mounting plate 1 is provided with a strip-shaped sliding hole 7 that corresponds to and matches the two guide blocks 8. Under the cooperative action of the strip-shaped sliding hole 7 and the guide block 8, the mold frame 12 can be guided in the left and right directions to prevent the mold frame 12 from swinging back and forth, thereby improving the deflection stability of the mold frame 12.

Claims

1. An RPC trench curing form inner mandrel characterized by: Includes a mounting plate (1), on which a frame-type gantry frame (13) is fixedly connected. A zig-shaped inner mold core plate (11) is fixedly connected to the top of the frame-type gantry frame (13). The inner mold core plate (11) has elastic deformation characteristics. Mold frames (12) are fixedly connected to the inner sides of both sides of the inner mold core plate (11). Both mold frames (12) are connected to a mold frame drive mechanism.

2. The RPC drainage trench maintenance form formwork mandrel of claim 1, wherein: The frame-type gantry (13) is connected to multiple reinforcing ribs (15).

3. The RPC drainage trench maintenance form formwork mandrel of claim 1, wherein: The inner mold core plate (11) is an integrally formed stainless steel plate.

4. The RPC drainage trench maintenance form formwork mandrel of claim 3, wherein: A support block (10) that fits against the bottom of the inner mold core plate (11) is fixedly connected to the mold frame (12).

5. The RPC drainage channel maintenance form formwork mandrel of any one of claims 1 to 4, characterized in that: There are two mold frame drive mechanisms, which are symmetrical about each other.

6. The RPC drainage trench maintenance form formwork insert of claim 5, wherein: The mold frame drive mechanism includes a bushing (3) fixedly connected to the mounting plate (1), a rotating shaft (4) rotatably connected inside the bushing (3), an upper swing rod (5) fixedly connected to the upper end of the rotating shaft (4), push-pull rods (9) hinged to both ends of the upper swing rod (5) by pins, and the other ends of the two push-pull rods (9) hinged to their corresponding mold frame (12) by pins. A lower swing rod (2) is fixedly connected to the lower end of the rotating shaft (4), and a drive rod (6) is hinged to the lower swing rod (2) by pins.

7. The RPC trench curing form mandrel of claim 6, wherein: Both of the mold frames (12) are provided with guide blocks (8), and the mounting plate (1) is provided with strip-shaped sliding holes (7) that correspond to and are adapted to the two guide blocks (8).

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