A prestressed corrugated pipe exhaust device

Abstract

The utility model relates to prestressed corrugated pipe technical field, proposes a kind of prestressed corrugated pipe exhaust device, including prestressed duct corrugated pipe, the left side of prestressed duct corrugated pipe is provided with inlet, the right side of prestressed duct corrugated pipe is provided with outlet, the top of prestressed duct corrugated pipe is provided with exhaust hole, the surface of prestressed duct corrugated pipe is attached with plastic arc-shaped pressing plate exhaust pipe, the top of plastic arc-shaped pressing plate exhaust pipe is fixedly connected with exhaust pipe interface, the utility model avoids the problem that traditional exhaust pipe inserts into prestressed corrugated pipe too long and causes steel strand bundle to penetrate into difficulty and extrusion block pipe etc., guarantees that steel strand bundle penetrates smoothly and exhaust pipe is unobstructed, avoids the problem that traditional exhaust pipe inserts into prestressed pipe too short and causes plastic tube to separate from arc-shaped pressing plate etc., guarantees that subsequent grouting will not block exhaust pipe.

Description

Technical Field

[0001] This utility model relates to the field of prestressed corrugated pipe technology, specifically to a prestressed corrugated pipe exhaust device. Background Technology

[0002] Prestressed duct grouting involves injecting grout into corrugated metal pipes, causing the prestressed steel strands to harden into a unified whole with the surrounding concrete. This ensures the prestressed beam structure possesses sufficient crack resistance and load-bearing capacity during operation. To prevent high-pressure air columns from forming within the ducts due to excessively long corrugated pipes, vent holes are installed at the crests or highest points of the pipes during actual construction. This improves grout density and ensures the grouting quality meets requirements.

[0003] Currently, the installation of pipes at vent holes often involves using a plastic arc-shaped pressure plate with a joint to fit the plastic pipe. Tape is then used to fix and seal the plastic arc-shaped pressure plate and the joint. During installation, improper operation by workers can easily cause the position of the plastic arc-shaped pressure plate to shift, resulting in the vent hole being partially or completely blocked by the arc-shaped pressure plate.

[0004] In view of this, the present invention proposes a prestressed corrugated pipe exhaust device. Utility Model Content

[0005] This utility model proposes a prestressed corrugated pipe exhaust device, which solves the problems in related technologies.

[0006] The technical solution of this utility model is as follows: A prestressed corrugated pipe exhaust device includes a prestressed corrugated pipe with a slurry inlet on the left side and a slurry outlet on the right side. An exhaust hole is provided at the top of the prestressed corrugated pipe. A plastic arc-shaped pressure plate exhaust pipe is attached to the surface of the prestressed corrugated pipe. An exhaust pipe interface is fixedly connected to the top of the plastic arc-shaped pressure plate exhaust pipe. An arched hole is provided on the surface of the plastic arc-shaped pressure plate exhaust pipe. A plastic cable tie is attached inside the arched hole. An internal reducing plastic tube is inserted inside the prestressed corrugated pipe. An expansion buckle is threaded into the lower end of the plastic arc-shaped pressure plate exhaust pipe. A wedge-shaped clamp is fixedly connected between the internal reducing plastic tube and the exhaust pipe interface. A fastening nut is screwed onto the upper end of the plastic arc-shaped pressure plate exhaust pipe.

[0007] Preferably, the fastening nut has a through hole in the middle, and an annular groove-shaped sealing ring is provided around the through hole, with the groove of the sealing ring embedded in the through hole of the fastening nut.

[0008] Preferably, the wedge-shaped clamp is composed of three identical arc-shaped wedges made of plastic material, and the wedge-shaped clamp has internal threads.

[0009] Preferably, the expansion buckle is made of plastic, and the buckle teeth are arc-shaped right angles and spaced apart.

[0010] Preferably, the arched holes are located at the troughs on one side of the plastic arc-shaped pressure plate exhaust pipe and are evenly distributed on both sides and in the middle of the plastic arc-shaped pressure plate exhaust pipe.

[0011] Preferably, the diameter of the larger end of the internal reducing plastic tube is slightly smaller than the diameter of the vent hole.

[0012] Preferably, the plastic cable tie passes through the arched hole to fix the plastic arc-shaped pressure plate exhaust pipe to the outside of the prestressed duct corrugated pipe.

[0013] Preferably, the inner reducing plastic tube is raised until the expansion buckle opens, and the wedge-shaped clamp is fixed between the inner reducing plastic tube and the exhaust pipe interface.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] 1. This utility model has a simple structure, is easy to install, has a stable connection, and good sealing performance, which avoids the problem of partial or complete blockage of the exhaust hole caused by misalignment of the exhaust pipe and ensures that the exhaust hole is unobstructed.

[0016] 2. This utility model avoids the problems of difficulty in inserting steel strand bundles and compression blockage caused by the traditional exhaust pipe being inserted too long into the prestressed corrugated pipe, ensuring smooth insertion of steel strand bundles and unobstructed exhaust pipe. It also avoids the problems of plastic pipe detaching from the arc-shaped pressure plate caused by the traditional exhaust pipe being inserted too short into the prestressed pipe, ensuring that the exhaust pipe will not be blocked during subsequent grouting. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the exhaust port location structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the expansion buckle structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the wedge-shaped clamping block structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the plastic cable tie structure of this utility model.

[0023] In the diagram: 1. Corrugated pipe for prestressed ducts; 2. Grout inlet; 3. Grout outlet; 4. Vent hole; 5. Plastic arc-shaped pressure plate vent pipe; 6. Vent pipe interface; 7. Arched hole; 8. Plastic cable tie; 9. Expansion buckle; 10. Fastening nut; 11. Internal reducing plastic pipe; 12. Groove sealing ring; 13. Wedge-shaped clamp. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] Example

[0026] A preferred embodiment of the prestressed corrugated pipe exhaust device provided by this utility model is, for example... Figures 1 to 5 As shown: A prestressed corrugated pipe exhaust device includes a prestressed corrugated pipe 1, a grout inlet 2 on the left side of the prestressed corrugated pipe 1, a grout outlet 3 on the right side of the prestressed corrugated pipe 1, an exhaust hole 4 at the top of the prestressed corrugated pipe 1, a plastic arc-shaped pressure plate exhaust pipe 5 attached to the surface of the prestressed corrugated pipe 1, an exhaust pipe interface 6 fixedly connected to the top of the plastic arc-shaped pressure plate exhaust pipe 5, an arched hole 7 on the surface of the plastic arc-shaped pressure plate exhaust pipe 5, a plastic cable tie 8 attached inside the arched hole 7, an internal reducing plastic pipe 11 inserted inside the prestressed corrugated pipe 1, an expansion buckle 9 threaded into the lower end of the plastic arc-shaped pressure plate exhaust pipe 5, a wedge-shaped clamp 13 fixedly connected between the internal reducing plastic pipe 11 and the exhaust pipe interface 6, and a fastening nut 10 screwed to the upper end of the plastic arc-shaped pressure plate exhaust pipe 5.

[0027] In this embodiment, a through hole is provided in the middle of the fastening nut 10, and an annular groove-shaped sealing ring 12 is provided around the through hole. The groove-shaped opening of the sealing ring 12 is embedded into the through hole of the fastening nut 10.

[0028] In this embodiment, the wedge-shaped clamp 13 is composed of three identical arc-shaped wedges made of plastic material. The wedge-shaped clamp 13 has internal threads to enhance the friction between the wedge-shaped clamp 13 and the internally connected plastic tube 11 with different diameters.

[0029] In this embodiment, the expansion buckle 9 is made of plastic. The buckle teeth of the expansion buckle 9 are arc-shaped right angles and are spaced apart, which can facilitate the increase of friction between the expansion buckle 9 and the prestressed duct corrugated pipe 1.

[0030] In this embodiment, the arched holes 7 are located at the troughs on one side of the plastic arc-shaped pressure plate exhaust pipe 5, and are evenly distributed on both sides and in the middle of the plastic arc-shaped pressure plate exhaust pipe 5.

[0031] In this embodiment, the larger end of the inner reducing plastic tube 11 has a slightly smaller diameter than the vent hole 4, which makes it easier for the inner reducing plastic tube 11 to penetrate into the prestressed duct corrugated pipe 1.

[0032] In this embodiment, the plastic cable tie 8 passes through the arched hole 7 to fix the plastic arc-shaped pressure plate exhaust pipe 5 to the outside of the prestressed duct corrugated pipe 1. By setting the plastic cable tie 8, it is easy to fix the plastic arc-shaped pressure plate exhaust pipe 5 to the outside of the prestressed duct corrugated pipe 1 from the outside.

[0033] In this embodiment, the inner reducing plastic tube 11 is raised to the expansion buckle 9 and opened, and the wedge-shaped clamp 13 is fixed between the inner reducing plastic tube 11 and the exhaust pipe interface 6.

[0034] The working principle and usage process of this utility model are as follows: A wedge-shaped clamp 13 is installed between the upper end of the plastic arc-shaped pressure plate exhaust pipe 5 and the inner diameter plastic pipe 11, and an expansion buckle 9 is installed at the lower end. Plastic cable ties 8 are used to fix the plastic arc-shaped pressure plate exhaust pipe 5 to the outside of the prestressed duct corrugated pipe 1, thus achieving the installation of the prestressed duct corrugated pipe 1. This solves the problems of misalignment, deformation, and blockage of the exhaust pipe caused by improper human operation during existing prestressed duct grouting construction. The buckle teeth of the expansion buckle 9 are arc-shaped right angles and spaced apart. To increase the friction between the expansion buckle 9 and the prestressed duct corrugated pipe 1, the wedge-shaped clamp 13 is threaded inside to enhance the friction between the wedge-shaped clamp 13 and the internal reducing plastic pipe 11. The groove-shaped sealing ring 12 is embedded in the through hole of the fastening nut 10 to ensure that the grout does not flow into the internal reducing plastic pipe 11 during the beam grouting stage. The plastic cable tie 8 passes through the arched hole 7 and is tied to the outside of the plastic arc-shaped pressure plate exhaust pipe 5 to prevent the grout from flowing into the prestressed duct corrugated pipe 1 from the gap between the plastic arc-shaped pressure plate exhaust pipe 5 and the prestressed duct corrugated pipe 1 during beam pouring.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A prestressed corrugated pipe exhaust device, comprising a prestressed corrugated pipe with prestressed ducts (1), characterized in that, The prestressed corrugated duct (1) has a grout inlet (2) on its left side and a grout outlet (3) on its right side. A vent (4) is located at the top of the prestressed corrugated duct (1). A plastic arc-shaped pressure plate vent pipe (5) is attached to the surface of the prestressed corrugated duct (1). A vent pipe interface (6) is fixedly connected to the top of the plastic arc-shaped pressure plate vent pipe (5). An arched hole (7) is provided on the surface, and a plastic cable tie (8) is attached inside the arched hole (7). An internal reducing plastic tube (11) is inserted inside the prestressed duct corrugated pipe (1). An expansion buckle (9) is threaded into the lower end of the plastic arc-shaped pressure plate exhaust pipe (5). A wedge-shaped clamp (13) is fixedly connected between the internal reducing plastic tube (11) and the exhaust pipe interface (6). A fastening nut (10) is screwed onto the upper end of the plastic arc-shaped pressure plate exhaust pipe (5).

2. The prestressed corrugated pipe exhaust device according to claim 1, characterized in that, The fastening nut (10) has a through hole in the middle, and an annular groove-shaped sealing ring (12) is provided around the through hole. The groove-shaped sealing ring (12) is embedded in the through hole of the fastening nut (10).

3. The prestressed corrugated pipe exhaust device according to claim 1, characterized in that, The wedge-shaped clamp (13) is composed of three identical arc-shaped wedges made of plastic material, and the wedge-shaped clamp (13) has internal threads.

4. The prestressed corrugated pipe exhaust device according to claim 1, characterized in that, The expansion buckle (9) is made of plastic, and the buckle teeth of the expansion buckle (9) are arc-shaped right angles and are spaced apart.

5. A prestressed corrugated pipe exhaust device according to claim 1, characterized in that, The arched hole (7) is located at the trough on one side of the plastic arc-shaped pressure plate exhaust pipe (5) and is evenly distributed on both sides and in the middle of the plastic arc-shaped pressure plate exhaust pipe (5).

6. The prestressed corrugated pipe exhaust device according to claim 1, characterized in that, The larger end of the inner reducing plastic tube (11) has a diameter slightly smaller than that of the vent hole (4).

7. A prestressed corrugated pipe exhaust device according to claim 1, characterized in that, The plastic cable tie (8) passes through the arched hole (7) to fix the plastic arc-shaped pressure plate exhaust pipe (5) to the outside of the prestressed duct corrugated pipe (1).

8. A prestressed corrugated pipe exhaust device according to claim 1, characterized in that, The inner reducing plastic tube (11) is raised to the expansion buckle (9) and opened, and the wedge-shaped clamp (13) is fixed between the inner reducing plastic tube (11) and the exhaust pipe interface (6).

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