Protection device suitable for monitoring cable joint with high water pressure resistance

Abstract

The utility model discloses a protection device suitable for a monitoring cable joint with high water pressure resistance, and relates to the technical field of cable connection protection. The device comprises a pressure-resistant shell and sealing assemblies, wherein the sealing assemblies are arranged at the two ends of the pressure-resistant shell; the sealing assembly comprises a connector body and a sealing nut. One end of the connector body is connected with the pressure-resistant shell and the sealing nut. An anti-falling buckle is arranged between the joint body and the sealing nut; the cable passes through the pressure-resistant housing and the sealing assembly. According to the utility model, the impact of high water pressure can be effectively resisted, and the sealing structure can ensure that water cannot permeate into a cable connection part, so that the anti-seepage effect of cable connection is ensured, and the stability and the safety are also shown.

Description

Technical Field

[0001] This utility model relates to the field of cable connection protection technology, and more specifically, it is a protection device suitable for monitoring cable connections with high water pressure resistance. Background Technology

[0002] Current monitoring cable joint connections primarily employ conventional methods, including heat shrink tubing or vulcanization. While these methods offer some seepage prevention in low-pressure environments, their effectiveness diminishes under high-pressure conditions. This has become a major reason for the subsequent failures or data anomalies of monitoring instruments, significantly impacting their operational reliability.

[0003] Therefore, in order to improve the seepage prevention effect of monitoring cable connections under high water pressure, it is necessary to develop a special cable joint protection device with high seepage prevention. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the above-mentioned background technology and to provide a protective device suitable for monitoring cable connections with high water pressure resistance.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a protection device for monitoring cable connections with high water pressure resistance, characterized in that: it includes a pressure-resistant outer shell and a sealing assembly, wherein the pressure-resistant outer shell is provided with sealing assemblies at both ends;

[0006] The sealing assembly includes a connector body and a sealing nut. One end of the connector body is connected to the pressure-resistant housing via a threaded connection, and the other end is connected to the sealing nut via a threaded connection.

[0007] An anti-disengagement buckle is provided between the connector body and the sealing nut;

[0008] The cable passes through a pressure-resistant housing and a sealing assembly.

[0009] In the above technical solution, a sealing ring is provided between the connector body and the pressure-resistant outer shell.

[0010] The anti-detachment buckle is a double buckle, which includes a first buckle and a second buckle; one end of the first buckle is located inside the connector body and the other end is located inside one end of the second buckle; multiple compression posts are spaced apart on the other end of the second buckle, and the compression posts are located inside the sealing nut; the diameter of the other end of the first buckle gradually increases until it matches one end of the second buckle.

[0011] The pressure-resistant outer shell has a wall thickness of 3mm, and its inner diameter is 2-2.5 times the outer diameter of the cable. The sealing ring is tightly fitted to the cable, and sealant is applied to the outside of the sealing ring.

[0012] An anti-seepage adhesive is applied between the anti-detachment buckle and the cable.

[0013] The inner diameter of the connector body is the same as the inner diameter of the pressure-resistant outer shell, and the inner diameter of the sealing nut is 1.5 times the outer diameter of the cable.

[0014] The pressure-resistant outer shell, connector body, and sealing nut are all made of stainless steel alloy.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] 1) This utility model can effectively resist the impact of high water pressure, and the sealing structure can ensure that water cannot seep into the cable connection part, thereby ensuring the anti-seepage effect of the cable connection and demonstrating stability and safety.

[0017] 2) This utility model fully considers the ease of installation, and can be quickly and firmly installed at different monitoring equipment and cable connection points, adapting to various complex installation environments.

[0018] 3) This utility model has good corrosion resistance and can operate stably for a long time in harsh underwater environments. It can provide long-term reliable protection for monitoring cable connections, ensure the normal operation of the monitoring system, and provide strong support for the safety and efficiency of the project. Attached Figure Description

[0019] Figure 1 This is a plan view of each component of this utility model.

[0020] Figure 2 This is an exploded view of the present invention.

[0021] Figure 3 This is a plan view of the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of this utility model.

[0023] Among them, 100-pressure resistant shell, 200-sealing component, 210-connector body, 220-sealing nut, 230-anti-disengagement buckle, 231-first buckle, 232-second buckle, 2321-compression column, 240-sealing ring, 300-cable. Detailed Implementation

[0024] The following detailed description, in conjunction with the accompanying drawings, illustrates the implementation of this utility model. However, these descriptions do not constitute a limitation of the present utility model and are merely illustrative. Furthermore, the advantages of this utility model will become clearer and easier to understand through this explanation.

[0025] like Figure 1 As shown, a protective device for monitoring cable connections with high water pressure resistance includes a pressure-resistant housing 100 and a sealing assembly 200, wherein the pressure-resistant housing 100 is provided with a sealing assembly 200 at both ends;

[0026] The sealing assembly 200 includes a connector body 210 and a sealing nut 220. One end of the connector body 210 is connected to the pressure-resistant housing 100 by a thread, and the other end is connected to the sealing nut 220 by a thread.

[0027] An anti-disengagement buckle 230 is provided between the connector body 210 and the sealing nut 220;

[0028] Cable 300 passes through pressure-resistant housing 100 and sealing assembly 200.

[0029] A sealing ring 240 is provided between the connector body 210 and the pressure-resistant outer shell 100.

[0030] The anti-detachment buckle 230 is a double buckle, including a first buckle 231 and a second buckle 232; one end of the first buckle 231 is located inside the connector body 210 and the other end is located inside one end of the second buckle 232; the other end of the second buckle 232 is provided with a plurality of compression posts at intervals, and the compression posts are located inside the sealing nut 220; the diameter of the other end of the first buckle 231 gradually increases until it matches one end of the second buckle 232.

[0031] The pressure-resistant outer shell 100 has a wall thickness of 3mm, and its inner diameter is 2-2.5 times the outer diameter of the cable 300.

[0032] The sealing ring 240 is tightly fitted to the cable 300, and the outside of the sealing ring 240 is coated with sealant.

[0033] An anti-seepage adhesive is applied between the anti-detachment buckle 230 and the cable 300.

[0034] The inner diameter of the connector body 210 is the same as the inner diameter of the pressure-resistant outer shell 100, and the inner diameter of the sealing nut 220 is 1.5 times the outer diameter of the cable 300.

[0035] The pressure-resistant outer shell 100, the connector body 210, and the sealing nut 220 are all made of stainless steel alloy.

[0036] The sealing component 200 of this utility model is set at the connection between the cable 300 and the pressure-resistant housing 100. The sealing component 200 adopts a multi-layer sealing structure, including a rubber O-ring 240, a connector body 210, a double anti-disengagement buckle 230, and a sealing nut 220. The sealing nut 220 contains sealant and a gasket. The connector body 210 is connected to the pressure-resistant housing 100 and the sealing nut 220 by threaded connection. This ensures that water cannot seep into the device under high water pressure.

[0037] The method of using this utility model includes the following steps:

[0038] Step 1: Fabricate the pressure-resistant outer shell 100, the connector body 210, and the sealing nut 220:

[0039] High-strength stainless steel alloy material is selected, and pressure-resistant, corrosion-resistant, and high-strength pressure-resistant shell 100 is made through casting, processing and other processes. The pressure-resistant shell 100 has a wall thickness of 3mm, and both ends are connected to the connector body 210 with internal threads. The inner diameter of the pressure-resistant shell 100 corresponds to the outer diameter of the cable 300, and is generally 2-2.5 times the outer diameter of the cable 300.

[0040] The materials of the connector body 210 and the sealing nut 220 are the same as those of the pressure-resistant housing 100. The external threads of the connector body 210 match the internal threads of the pressure-resistant housing 100. The inner diameter of the connector body 210 is the same as that of the pressure-resistant housing 100. The inner diameter of the sealing nut 220 is 1.5 times the outer diameter of the cable 300.

[0041] Step 2, Install the sealing assembly:

[0042] Install sealing rings 240 at both ends of the pressure-resistant housing 100 to ensure that the sealing rings 240 and the cable 300 can fit tightly. Apply sealant to the outside of the sealing rings 240 to further enhance the sealing effect.

[0043] After the cable 300 undergoes traditional heat shrink tubing or vulcanization treatment, it is fitted with a pressure-resistant outer shell 100 and a sealing component 200. The sealing ring 240 and the anti-detachment buckle 230 are adjusted, and the connector body 210 is rotated clockwise and tightened to ensure a tight and secure fit between the connector body 210 and the pressure-resistant outer shell 100. Anti-seepage sealant is applied between the cable 300 and the anti-detachment buckle 230 to enhance the sealing and seepage prevention effect. The sealing nut 220 is tightened clockwise to complete the installation.

[0044] In practical use, this utility model classifies and wires the monitoring cables (four-core shielded cable, four-core hydraulic cable, five-core hydraulic cable, eight-core shielded cable, and ten-core shielded cable) required by the water transmission system of the Yunxiao Pumped Storage Power Station in Fujian Province. It also uses this utility model to test the protection of the cables, records the outer and inner diameters of the required stainless steel alloy materials, and performs pressure tests on the monitoring cables with protective devices, recording the pressure parameters to ensure that they can work normally under high water pressure.

[0045] This utility model takes the safety monitoring project of Yunxiao Pumped Storage Power Station in Fujian Province (hereinafter referred to as Yunxiao Pumped Storage) as the research and development base and application scenario. The maximum head of Yunxiao Pumped Storage is 496m, which is a high water pressure environment. The maximum water pressure resistance index required for some monitoring instruments in the water conveyance system is 7MPa. The development concept of this utility model is to add a set of high-strength protection devices that are corrosion-resistant, pressure-resistant and seepage-proof on the basis of traditional treatment of monitoring cable joints, so as to achieve double protection. This utility model conducts tests and comparisons on various schemes with different materials, structural components and sizes, and selects the technical solution with good seepage prevention effect, economic applicability and easy promotion.

[0046] All other unspecified parts belong to the prior art.

Claims

1. A protection device suitable for monitoring the connection of a cable for high water pressure, characterized in that: It comprises a pressure-resistant shell (100) and a sealing assembly (200), and the pressure-resistant shell (100) is provided with the sealing assembly (200) at both ends. The sealing assembly (200) comprises a joint body (210) and a sealing nut (220), one end of the joint body (210) is connected with the pressure-resistant shell (100) through a thread, and the other end is connected with the sealing nut (220) through a thread. A anti-loosing buckle (230) is arranged between the joint body (210) and the sealing nut (220). A cable (300) passes through the pressure-resistant shell (100) and the sealing assembly (200). The anti-loosing buckle (230) is a double buckle, and the anti-loosing buckle (230) comprises a first buckle (231) and a second buckle (232); one end of the first buckle (231) is located in the joint body (210), and the other end is located in one end of the second buckle (232); the other end of the second buckle (232) is provided with a plurality of extrusion columns (2321) at intervals, and the extrusion columns (2321) are located in the sealing nut (220); the diameter of the other end of the first buckle (231) gradually increases until it matches one end of the second buckle (232).

2. A protection device for the connection of monitoring cables suitable for high water pressure according to claim 1, characterized in that: A sealing ring (240) is arranged between the joint body (210) and the pressure-resistant shell (100).

3. A protection device for the connection of monitoring cables suitable for high water pressure according to claim 1, characterized in that: The wall thickness of the pressure-resistant shell (100) is 3mm, and the inner diameter of the pressure-resistant shell (100) is 2-2.5 times of the outer diameter of the cable (300).

4. A protection device for the connection of monitoring cables suitable for high water pressure according to claim 2, characterized in that: The sealing ring (240) is closely attached to the cable (300), and sealing glue is applied to the outside of the sealing ring (240).

5. A protection device for the connection of monitoring cables suitable for high water pressure according to claim 1, characterized in that: The anti-loosing buckle (230) is applied with anti-seepage glue between the cable (300).

6. A protection device for the connection of monitoring cables suitable for high water pressure according to claim 1, characterized in that: The inner diameter of the joint body (210) is the same as the inner diameter of the pressure-resistant shell (100), and the inner diameter of the sealing nut (220) is 1.5 times of the outer diameter of the cable (300).

7. A protection device for the connection of monitoring cables suitable for high water pressure according to claim 1, characterized in that: The pressure-resistant shell (100), the joint body (210) and the sealing nut (220) are all made of stainless steel alloy material.

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