Connecting and sealing device for cable pipe in pipe drawing construction

Abstract

The utility model provides a connecting and sealing device of a cable pipe for pipe drawing construction, which relates to the technical field of pipe drawing construction, and comprises a cable pipe, a sealing element is arranged at the end part of the cable pipe, a groove is arranged in the sealing element, and the sealing element is connected with the cable pipe. A mounting ring is fixedly mounted at the position, close to the end, of the outer surface of the cable tube, the mounting ring is mounted in the groove to fix connection between the sealing part and the cable tube, and a connecting part is rotationally mounted at the end, away from the cable tube, of the sealing part; by arranging the mounting ring on the cable tube, forming the grooves for mounting the mounting ring in the shells and arranging the two shells, the fixing effect can be ensured while the sealing element and the cable tube can be conveniently connected, and the first mounting groove and the second mounting groove are formed in the two sides of the groove correspondingly, so that the sealing element is more convenient to mount and demount. The first sealing ring and the second sealing ring are installed, and the sealing effect of the sealing piece can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipe pulling construction technical field, specifically a pipe pulling construction cable pipe's connecting sealing device. BACKGROUND

[0002] In modern city construction and power transmission system, underground cable laying is a common and important way. As a kind of underground pipeline laying technology of trenchless, pipe pulling construction technology is widely used in cable pipe laying engineering because of its advantages such as little influence on ground traffic and environment. However, in the pipe pulling construction process, the connection sealing problem of cable pipe has been the key factor that troubles engineering quality and cable safe operation.

[0003] In the process of laying cable pipe, the expanding drill bit needs to be connected with the cable pipe and the cable pipe is pulled to move and insert, but the existing cable pipe connecting sealing device is mostly simple structure, and in the pipe pulling construction process, due to the large pulling force and friction force of the pipeline, the bolt is easy to loosen, and the buckle is easy to break, which causes the separation of the connection between the cable pipe and the expanding drill bit, or the mud enters the inside of the cable pipe due to its poor sealing, which affects the construction progress and engineering quality. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of pipe pulling construction cable pipe's connecting sealing device, to solve the problem of the sealing effect of the connecting sealing device of the cable pipe in general technology.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the connecting sealing device of the pipe pulling construction cable pipe, including cable pipe, the end of the cable pipe is provided with a sealing element, the inside of the sealing element is provided with a groove, the outer surface of the cable pipe is fixedly installed with a mounting ring near the end position, the mounting ring is installed in the groove to fix the connection between the sealing element and the cable pipe;The end of the sealing element away from the cable pipe is rotatably installed with a connecting element, the end of the connecting element is fixedly provided with a limiting block to prevent it from being separated from the sealing element, the other end of the connecting element is used to connect with the expanding drill bit;The sealing element includes two symmetrically arranged housings, the inner wall of the housing is provided with a groove, a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove are respectively located on the two sides of the groove, the first mounting groove is installed with a first sealing ring, the second mounting groove is installed with a second sealing ring, the inner diameter of the first sealing ring and the second sealing ring is less than the outer diameter of the cable pipe to form a sealed contact.

[0006] The beneficial effects are as follows: by setting an installation ring on the cable pipe and opening a groove inside the housing for installing the installation ring, and by setting two housings, it is possible to facilitate the connection of the seal to the cable pipe while ensuring its fixing effect. Furthermore, by setting a first installation groove and a second installation groove on both sides of the groove to install the first sealing ring and the second sealing ring, the sealing effect of the seal can be guaranteed, and mud and sand can be prevented from entering the inside of the cable pipe, thus affecting the construction progress and project quality.

[0007] A further technical solution of this utility model is that the outer sides of the two shells are fixedly connected by a connecting plate and connecting bolts, and one of the shells is provided with a sealing plate to seal the joint between the shells.

[0008] A further technical solution of this utility model is that the first sealing ring is made of high-performance rubber material, and the second sealing ring is made of water-swellable rubber material.

[0009] The beneficial effects are: the first sealing ring can fit tightly against the outer wall of the cable pipe, forming the first line of defense. When a small amount of water enters the gap between the shell and the cable pipe, the second sealing ring expands upon contact with water, further filling the gap and enhancing the sealing effect.

[0010] A further technical solution of this utility model is that each end of the two housings is fixedly mounted with a mounting base by a plurality of connecting blocks. The mounting base has a semi-circular connecting groove inside, and the two connecting grooves form a circular groove for mounting the connector.

[0011] The beneficial effect is that it makes it easier for users to install the connector with the fixed installation limit block.

[0012] A further technical solution of this utility model is that two slots are provided on one side of the mounting base, and the two slots are respectively located on both sides of the connecting groove.

[0013] A further technical solution of this utility model is that a connecting strip is fixedly installed inside the slot of one of the mounting bases, and the connecting strip is used to connect the two mounting bases.

[0014] A further technical solution of this utility model is that a fixing hole is provided inside the connecting strip, and a reinforcing bolt is installed on another mounting base, the reinforcing bolt being installed inside the fixing hole.

[0015] A further technical solution of this utility model is that the first sealing ring and the second sealing ring are both semi-circular ring structures, and the two first sealing rings or the two second sealing rings are spliced ​​together to form a complete annular sealing ring, and the inner diameter of the spliced ​​sealing ring is smaller than the outer diameter of the cable pipe. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is an exploded view of this utility model.

[0018] Figure 3 This is a schematic diagram of the shell structure in a specific embodiment of this utility model.

[0019] Figure 4 This is a schematic diagram of the connecting strip in a specific embodiment of this utility model.

[0020] In the diagram: 1-Cable conduit, 11-Mounting ring, 2-Seal, 21-Housing, 211-Groove, 212-First mounting groove, 213-Second mounting groove, 214-Connecting block, 215-Mounting base, 216-Connecting groove, 217-Slot, 218-Connecting strip, 2181-Fixing hole, 219-Reinforcing bolt, 22-Connecting plate, 221-Mounting hole, 23-Connecting bolt, 231-Fixing nut, 24-First sealing ring, 25-Second sealing ring, 26-Sealing plate, 3-Connecting component, 31-Limiting block. Detailed Implementation

[0021] 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.

[0022] like Figures 1-4 As shown, a connection and sealing device for a cable conduit used in cable pulling construction includes a cable conduit 1. A sealing element 2 is installed at the end of the cable conduit 1. The sealing element 2 has a groove 211 inside. An installation ring 11 is fixedly installed on the outer surface of the cable conduit 1 near the end. The installation ring 11 is installed inside the groove 211, which facilitates the user to connect the cable conduit 1 to the sealing element 2. A connector 3 is rotatably installed at the end of the sealing element 2 away from the cable conduit 1. A limiting block 31 is fixedly installed at the end of the connector 3 to limit its movement and prevent it from separating from the sealing element 2. The other end of the connector 3 is fixedly connected to a reaming drill bit, so that when the reaming drill bit rotates, it drives the connector 3 to rotate without driving the sealing element 2 and the cable conduit 1 to rotate. When the reaming drill bit moves, it can drive the connector 3, the sealing element 2 and the cable conduit 1 to move.

[0023] The seal 2 includes two housings 21, both of which are hollow semi-cylindrical. A connecting plate 22 is fixedly installed on the outer surface of each housing 21. The connecting plate 22 has a mounting hole 221 inside. A connecting bolt 23 for connecting the two housings 21 is installed inside the mounting hole 221. A fixing nut 231 for reinforcing the bolt 23 is threaded onto one end of the connecting bolt 23. A sealing plate 26 is fixedly installed on one of the housings 21. The sealing plate 26 is used to seal the connection between the two housings 21.

[0024] Both housings 21 have a groove 211, a first mounting groove 212, and a second mounting groove 213 along their length on their inner walls. The first mounting groove 212 and the second mounting groove 213 are located on both sides of the groove 211, and the first mounting groove 212 is located at the end of the housing 21. A first sealing ring 24 is installed inside the first mounting groove 212. The first sealing ring 24 is made of high-performance rubber material with good elasticity and aging resistance. The first sealing ring 24 is installed in the first mounting groove 212, and its outer diameter matches the size of the first mounting groove 212, while its inner diameter is slightly smaller than the outer diameter of the cable conduit 1. When the sealing element 2 is installed in the cable conduit... When the first sealing ring 24 is in place, it can fit tightly against the outer wall of the cable pipe 1, forming the first sealing line. The second sealing ring 25 is installed inside the second mounting groove 213. The second sealing ring 25 is made of a sealing material with self-expanding properties, such as water-swellable rubber. When a small amount of water enters the gap between the housing 21 and the cable pipe 1, the second sealing ring 25 expands upon contact with water, further filling the gap and enhancing the sealing effect. In this embodiment, both the first sealing ring 24 and the second sealing ring 25 are semi-circular ring structures. The two first sealing rings 24 or the two second sealing rings 25 can be spliced ​​together to form a sealing ring with an inner diameter slightly smaller than the outer diameter of the cable pipe 1.

[0025] The other ends of the two housings 21 are closed. Each of the other ends of the two housings 21 is fixedly mounted with a mounting base 215 by multiple connecting blocks 214. The interior of the mounting base 215 has a semi-circular connecting groove 216. The two connecting grooves 216 form a circular groove for mounting the connector 3. Two slots 217 are opened on one side of the mounting base 215. The two slots 217 are located on both sides of the connecting groove 216. A connecting strip 218 is fixedly installed inside the slot 217 of one of the mounting bases 215. The connecting strip 218 is used to connect the two mounting bases 215. A fixing hole 2181 is opened inside the connecting strip 218. A reinforcing bolt 219 is installed on the other mounting base 215. The reinforcing bolt 219 is installed inside the fixing hole 2181, which makes it convenient for the user to install the connector 3 with the fixed mounting limit block 31.

[0026] During use, the first sealing ring 24 and the second sealing ring 25 are first installed inside the first mounting groove 212 and the second mounting groove 213 respectively. Then, the two housings 21 are installed on the cable pipe 1, and the mounting ring 11 of the cable pipe 1 is installed inside the groove 211. At the same time, the connector 3 is installed inside the mounting base 215. Finally, the two housings 21 are connected and fixed using the connecting bolt 23, and the connecting strip 218 is reinforced using the reinforcing bolt 219.

[0027] In this utility model, by setting an installation ring 11 on the cable pipe 1 and opening a groove 211 inside the housing 21 for installing the installation ring 11, and setting two housings 21, it is possible to facilitate the connection of the sealing element 2 to the cable pipe 1 while ensuring its fixing effect. Furthermore, a first installation groove 212 and a second installation groove 213 are respectively set on both sides of the groove 211 to install the first sealing ring 24 and the second sealing ring 25, which can ensure the sealing effect of the sealing element 2 and prevent mud and sand from entering the inside of the cable pipe, thus affecting the construction progress and project quality.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A connection sealing device for a pipe-pulling construction cable pipe, characterized in that The utility model provides a cable pipe (1) is provided with a sealing piece (2) on the end, the inside of sealing piece (2) is provided with a groove (211), and the outer surface of cable pipe (1) is provided with a mounting ring (11) near the end, and the mounting ring (11) is mounted in the groove (211) to fix the connection between sealing piece (2) and cable pipe (1). The end of sealing piece (2) away from cable pipe (1) is rotatably provided with a connecting piece (3), and the end of connecting piece (3) is fixedly provided with a limiting block (31) to prevent it from being separated from sealing piece (2), and the other end of connecting piece (3) is used to be connected with a reamer. The sealing piece (2) comprises two symmetrical housings (21), and the inner wall of the housing (21) is provided with a groove (211), a first mounting groove (212) and a second mounting groove (213), the first mounting groove (212) and the second mounting groove (213) are respectively located on the two sides of the groove (211), the first mounting groove (212) is provided with a first sealing ring (24), the second mounting groove (213) is provided with a second sealing ring (25), and the inner diameter of the first sealing ring (24) and the second sealing ring (25) is smaller than the outer diameter of the cable pipe (1) to form a sealed contact.

2. A connection sealing device for a pipe construction cable tube according to claim 1, characterized in that The outer sides of the two housings (21) are fixedly connected through a connecting plate (22) and a connecting bolt (23), and one of the housings (21) is provided with a sealing sheet (26) to seal the joint between the housings (21).

3. A connection sealing device for a pipe construction cable tube according to claim 1, characterized in that The first sealing ring (24) is made of high-performance rubber material, and the second sealing ring (25) is made of water-swelling rubber material.

4. A connection sealing device for a pipe construction cable tube according to claim 1, characterized in that The ends of the two housings (21) are fixedly provided with mounting seats (215) through a plurality of connecting blocks (214), the mounting seat (215) has a semicircular connecting groove (216) in the inside, and the two connecting grooves (216) form a circular groove to mount the connecting piece (3).

5. A connection sealing device for a pipe construction cable tube according to claim 4, characterized in that The mounting seat (215) is provided with two insertion grooves (217) on one side, and the two insertion grooves (217) are respectively located on the two sides of the connecting groove (216).

6. A connection sealing device for a pipe construction cable tube according to claim 5, wherein The insertion groove (217) of one of the mounting seats (215) is fixedly provided with a connecting strip (218) in the inside, and the connecting strip (218) is used to connect the two mounting seats (215).

7. A connection sealing device for a pipe construction cable tube according to claim 6, characterized in that The connecting strip (218) is provided with a fixing hole (2181) in the inside, and the other mounting seat (215) is provided with a reinforcing bolt (219), and the reinforcing bolt (219) is mounted in the fixing hole (2181).

8. A connection sealing device for a pipe construction cable tube according to any one of claims 1-7, characterized in that The first sealing ring (24) and the second sealing ring (25) are both semicircular ring structures, two first sealing rings (24) or two second sealing rings (25) are spliced to form a complete annular sealing ring, and the inner diameter of the spliced sealing ring is smaller than the outer diameter of the cable pipe (1).

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