Waterproof structure at connecting part of prefabricated electric power calandria

Abstract

The utility model discloses a waterproof structure at the joint of prefabricated electric power calandria, which comprises two sealing frames, one side of each sealing frame is provided with an attaching frame, the two sealing frames are internally provided with reinforcing frames, the inner surfaces of the two reinforcing frames are provided with rubber sealing rings, the two sides of each sealing frame are provided with casting pipes, and the two sides of each casting pipe are provided with sealing rings. The inner walls of the two sealing frames are each provided with two first flow grooves, the inner surfaces of the four first flow grooves are each provided with a plurality of through holes, the casting pipes, the first flow grooves, the through holes, the rubber sealing rings, the waterproof coatings and the casting holes are arranged, the two attaching frames are aligned to each other and tightly attached, and the first calandria and the second calandria can be connected; the sealing performance and the waterproof performance after the first rack pipe and the second rack pipe are connected are further enhanced, the waterproof coating is made of epoxy resin materials, high bonding strength and corrosion resistance are achieved, and the service life of the sealing frame is further prolonged.

Description

Technical Field

[0001] This utility model relates to the field of waterproof structure technology, and in particular to a waterproof structure for the connection of prefabricated power pipes. Background Technology

[0002] Precast power conduits typically refer to precast pipe systems used for laying power cables. These conduits are usually made of concrete, PVC, or high-density polyethylene materials and are specifically designed to protect power cables from damage caused by the external environment, ensure the safe operation of the power system, protect power cables from physical damage caused by the external environment, and prevent moisture from penetrating into the cable. In particular, underground conduit systems need to have good waterproofing capabilities. The conduits are highly corrosion-resistant, lightweight, and easy to install, making them suitable for laying power pipelines in mild environments. Precast power conduits need to be sealed and connected using waterproof structures.

[0003] When two prefabricated power conduits are connected, sealant is used to seal and bond them together. If the sealant cannot be evenly distributed around the connection area, it may cause some areas at the joint to be poorly sealed, resulting in water leakage and affecting the waterproofing effect. Poor sealing may also lead to corrosion of the conduits. Therefore, it is particularly important to design a waterproof structure for the connection of prefabricated power conduits. Utility Model Content

[0004] The purpose of this utility model is to provide a waterproof structure for the connection of prefabricated power pipes, so as to solve the problem mentioned in the background art that if the sealant cannot be evenly distributed around the connection of the pipes, it may lead to poor sealing in some areas of the joint.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof structure for the connection of a prefabricated power conduit, comprising two sealing frames, each sealing frame having a bonding frame on one side, a reinforcing frame inside each sealing frame, a rubber sealing ring on the inner surface of each reinforcing frame, casting pipes on both sides of each sealing frame, two first flow grooves on the inner wall of each sealing frame, multiple through holes on the inner surface of each of the four first flow grooves, the multiple through holes communicating with both sides of the two bonding frames, a first row of pipes on one side of one sealing frame, and a second row of pipes on one side of the other sealing frame.

[0006] As a preferred embodiment of this utility model, a second flow groove is provided at the bottom of each of the two sealing frames, and the four first flow grooves are respectively connected to the two second flow grooves.

[0007] As a preferred technical solution of this utility model, each of the four casting pipes has a casting hole on one side, and the multiple through holes are arranged at equal intervals.

[0008] As a preferred embodiment of this utility model, the positions of the two adjacent casting pipes are corresponding.

[0009] As a preferred embodiment of this utility model, the outer surfaces of both rubber sealing rings are provided with a waterproof coating, and the thickness of both reinforcing frames is greater than the thickness of the two rubber sealing rings.

[0010] As a preferred embodiment of this utility model, two positioning blocks are provided on both sides of the two sealing frames, and an embedding hole is provided on one side of each of the eight positioning blocks.

[0011] As a preferred technical solution of this utility model, each of the two corresponding embedded holes is connected with a screw rod, and both ends of the four screw rods are threaded with a limiting nut.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model discloses a waterproof structure for the connection of prefabricated power conduits. By incorporating a casting pipe, a first flow groove, a through hole, a rubber sealing ring, a waterproof coating, and a casting hole, two bonding frames are aligned and tightly bonded together, allowing the first and second conduits to be connected. Polyurethane sealant is injected into the casting hole. This polyurethane sealant has good elasticity and strong water resistance, adapting to the expansion and contraction of the conduits and preventing water leakage. Furthermore, the polyurethane sealant permeates along the through hole and the bonding frames, achieving a sealed bond between the two bonding frames, further enhancing the sealing and waterproofing performance after the first and second conduits are connected. The waterproof coating is made of epoxy resin, possessing high bonding strength and corrosion resistance, further extending the service life of the sealing frame.

[0014] 2. This utility model discloses a waterproof structure for the connection of a prefabricated power conduit. It includes a second flow channel, reinforcing frame, positioning blocks, screws, and limiting nuts. After the two sealing frames are aligned and fitted together, the screws are sequentially embedded into the corresponding two insertion holes. Subsequently, the two limiting nuts are threaded onto the two ends of the screws to limit the positioning blocks. The two sealing frames are installed through the fixing of eight positioning blocks, enhancing the firmness of the connection. The reinforcing frame is made of aluminum alloy, which has a certain degree of hardness, enhancing the compressive strength of the rubber sealing ring. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a partial front view structural schematic diagram of the present invention;

[0018] Figure 4 This is a partial exploded view of the present invention.

[0019] In the diagram: 1. Sealing frame; 2. Adhesive frame; 3. Casting pipe; 4. Casting hole; 5. First flow channel; 6. Through hole; 7. Second flow channel; 8. Reinforcing frame; 9. Rubber sealing ring; 10. Waterproof coating; 11. Positioning block; 12. Embedding hole; 13. Screw; 14. Limiting nut; 15. First row of pipes; 16. Second row of pipes. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 This utility model provides a technical solution for a waterproof structure at the connection of prefabricated power conduit:

[0022] Example 1:

[0023] like Figure 1-3 As shown, a waterproof structure for the connection of a prefabricated power conduit includes two sealing frames 1. Each sealing frame 1 has a bonding frame 2 on one side. Each sealing frame 1 has a reinforcing frame 8 inside. Each reinforcing frame 8 has a rubber sealing ring 9 on its inner surface. Each sealing frame 1 has a casting pipe 3 on both sides. Each sealing frame 1 has two first flow grooves 5 on its inner wall. Each of the four first flow grooves 5 has multiple through holes 6 on its inner surface, which communicate with both sides of the bonding frames 2. One sealing frame 1 has a first conduit 15 on one side, and the other sealing frame 1 has a second conduit 16 on one side. The polyurethane sealant has good elasticity and strong water resistance, adapting to the expansion and contraction of the conduit and preventing water leakage. Furthermore, the polyurethane sealant communicates with the bonding frames 2 along the through holes 6, achieving a sealed bond between the two bonding frames 2, further enhancing the sealing and waterproofing performance after the first conduit 15 and the second conduit 16 are connected.

[0024] Example 2:

[0025] Based on Example 1, such as Figure 1 and Figure 4 As shown, the outer surfaces of the two rubber sealing rings 9 are provided with a waterproof coating 10, the thickness of the two reinforcing brackets 8 is greater than the thickness of the two rubber sealing rings 9, and the interiors of the corresponding two embedding holes 12 are connected with screws 13. The two ends of the four screws 13 are threaded with limiting nuts 14. The screws 13 are sequentially embedded into the interiors of the corresponding two embedding holes 12. Then, the two limiting nuts 14 are threaded onto the two ends of the screws 13 respectively, so that the two positioning blocks 11 can be limited.

[0026] Working Principle: Precast power cable ducts typically refer to precast conduit systems used for laying power cables. These ducts are usually precast using materials such as concrete, PVC, and high-density polyethylene, specifically designed to protect power cables from external environmental damage, ensure the safe operation of the power system, protect power cables from physical damage caused by the external environment, and prevent moisture from penetrating the cable interior. Underground duct systems, in particular, require excellent waterproofing. The ducts are highly corrosion-resistant, lightweight, and easy to install, making them suitable for power conduit laying in mild environments. Precast power cable ducts require a waterproof structure for sealing and connection. When two precast power cable ducts are connected, sealant is used to seal and bond them together. If the sealant cannot be evenly distributed around the connection area, it may cause incomplete sealing in some areas, resulting in leakage and affecting the waterproofing effect. Poor sealing can also lead to corrosion of the ducts. Therefore, designing a waterproof structure for the connection of precast power cable ducts is particularly important. Two bonding frames 2 are aligned and tightly bonded together. The first duct 15 and the second... The two rows of pipes 16 can be connected by injecting polyurethane sealant into the casting hole 4. The polyurethane sealant has good elasticity and strong water resistance, which can adapt to the expansion and contraction of the pipes and prevent water leakage. The polyurethane sealant is interconnected with the bonding frame 2 along the through hole 6 and the second flow groove 7, realizing the sealing and bonding of the two bonding frames 2, which further enhances the sealing and waterproof performance after the first row of pipes 15 and the second row of pipes 16 are connected. The waterproof coating 10 is made of epoxy resin material, which has high bonding strength and corrosion resistance, further extending the service life of the sealing frame 1. After the two sealing frames 1 are aligned and bonded, the screws 13 are inserted into the corresponding two insertion holes 12 in sequence. Then, the two limit nuts 14 are threaded onto the two ends of the screws 13 respectively, which can limit the two positioning blocks 11. Through the fixation of the eight positioning blocks 11, the two sealing frames 1 are installed, which enhances the firmness of the connection between the two. The reinforcing frame 8 is made of aluminum alloy, which has a certain hardness and enhances the compressive strength of the rubber sealing ring 9.

[0027] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof structure for the connection of a prefabricated power conduit, comprising two sealing frames (1), characterized in that: Each of the two sealing frames (1) is provided with a bonding frame (2) on one side, and a reinforcing frame (8) is provided inside each of the two sealing frames (1). A rubber sealing ring (9) is provided on the inner surface of each of the two reinforcing frames (8). A casting pipe (3) is provided on both sides of each of the two sealing frames (1). Two first flow grooves (5) are opened on the inner wall of each of the two sealing frames (1). Multiple through holes (6) are opened on the inner surface of each of the four first flow grooves (5). The multiple through holes (6) are respectively connected to the two sides of the two bonding frames (2). A first row of pipes (15) is provided on one side of one of the sealing frames (1), and a second row of pipes (16) is provided on one side of the other sealing frame (1).

2. The waterproof structure for the connection of a prefabricated power conduit according to claim 1, characterized in that: The bottom of each of the two sealing frames (1) is provided with a second flow groove (7), and the four first flow grooves (5) are respectively connected to the two second flow grooves (7).

3. The waterproof structure at the connection of a prefabricated power conduit according to claim 1, characterized in that: Each of the four casting pipes (3) has a casting hole (4) on one side, and the multiple through holes (6) are arranged at equal intervals.

4. The waterproof structure at the connection of a prefabricated power conduit according to claim 3, characterized in that: The positions of the two adjacent casting pipes (3) are corresponding.

5. The waterproof structure for the connection of a prefabricated power conduit according to claim 1, characterized in that: The outer surfaces of the two rubber sealing rings (9) are provided with a waterproof coating (10), and the thickness of the two reinforcing frames (8) is greater than the thickness of the two rubber sealing rings (9).

6. The waterproof structure for the connection of a prefabricated power conduit according to claim 1, characterized in that: Two positioning blocks (11) are provided on both sides of the two sealing frames (1), and an embedding hole (12) is provided on one side of each of the eight positioning blocks (11).

7. The waterproof structure for the connection of a prefabricated power conduit according to claim 6, characterized in that: Each of the two corresponding insertion holes (12) is connected with a screw (13), and each of the four screws (13) is threaded with a limiting nut (14) at both ends.

Images