CN203456841U - Water conservancy project cable connecting apparatus specially used in adverse conditions - Google Patents

Abstract

The utility model discloses a new type hydraulic cable connection device specially used in harsh environments with high pressure resistance, high and low temperature resistance, corrosion resistance and drag resistance. Among them, the cap, flat pad and protective tube are all made of 304 stainless steel, and the sealing ring is made of polytetrafluoroethylene. The above-mentioned special hydraulic cable connection convenient device in harsh environment is a sealing device that can realize reliable connection between cables under high water pressure. Due to the use of both ends to squeeze the sealing ring, the effective deformation of the sealing ring in the elastic range is fully utilized, so that the cable joint is in the protective tube after connection and the cable, the sealing ring and the protective tube are tightly connected and integrated as the core. It is guaranteed that the device can work stably for a long time under the harsh environment of 3-5aMP water pressure (the pressure of 3-5aMP=300-500m water level depth).

Description

A special hydraulic cable connection device in harsh environment

technical field

The utility model belongs to the technical field of water conservancy engineering, in particular to a sealing device used for docking between cables in dams, deep water areas and sea areas under high water levels. the

Background technique

In project management, the monitoring equipment used in river courses, reservoirs, dams, deep water areas, sea areas, etc. is the work that the relevant departments in various places are very concerned about. The special hydraulic cable connection convenient device in harsh environment is an indispensable part of the commonly used monitoring instrument cable. Its working principle is a sealing device that realizes reliable connection between cables under high water pressure. the

The existing convenient device for connecting special hydraulic cables in harsh environments is a major device for connecting the cables of monitoring instruments. Generally, heat shrinkable tubes are added with pigskin glue, plastic sleeves are filled with glue, and vulcanization methods are used for docking. The first two methods drift and change at any time during use, the plastic is easy to age, the glue and the cable cannot be integrated, and it is easy to fall off when the cable is pulled; the latter method must be used for special vulcanization The cost of equipment is also high, and the construction is also relatively complicated. The retractable cable is also easy to fall off during pulling, which has a relatively large impact on the viability of the cable butt joint, and the stability is also poor. There are certain problems in the butt joint stability of the above types of cables, and the production cost is also greatly increased. the

Utility model content

Aiming at the deficiencies existing in the prior art, the purpose of this utility model is to provide a special-purpose water conservancy equipment for harsh environments with high water pressure resistance, high and low temperature resistance, corrosion resistance, pull resistance, good stability and high reliability. The cable connection device can be used as the main part of the cable and cable connection device, which can greatly reduce the labor intensity of personnel, so as to achieve the purpose of improving product quality, production efficiency and reducing production cost. the

In order to achieve the above object, the utility model is realized through the following technical solutions:

A special hydraulic cable connection device for harsh environments, including a first cable parallel cap, one end of the first cable thread passes through the first cable cap and is fixed thereto, and one end of the second cable thread passes through the second cable cap And fixed with it, the first cable parallel cap or the second cable parallel cap and the two ends of the protective tube are connected by screw threads. the

Preferably, a sealing assembly is provided between the cable cap and the protective tube. the

Preferably, the sealing assembly includes a flat gasket and a sealing ring, the positions of which are the cable cap, the flat gasket, the sealing ring, and the flat gasket in sequence. the

Preferably, the sealing rings are respectively arranged at both ends of the protective pipe, and there are two sealing rings at each end. the

Preferably, the first cable cap, flat pad, and protective tube are all made of 304 stainless steel. the

Preferably, the sealing ring is made of polytetrafluoroethylene. the

The cable caps, flat pads, protective tubes, and sealing rings can be produced according to any cable specification and size. the

The utility model is beneficial in that: 1. The two ends are used to squeeze the sealing ring, and the effective deformation of the sealing ring in the elastic range is fully utilized, so that the cable joint is in the protective tube after connection and is connected with the cable wire, the sealing ring and the sealing ring. The tight connection of the protective pipe is integrated as the core, which ensures that the device can work stably for a long time under the harsh environment of 3-5aMP water pressure (the pressure of 3-5aMP=300-500m water level depth); 2. Adopt suitable materials, so that The utility model is not affected by high and low temperature and corrosive environments, and has good stability, low cost and small tolerance. At the same time, the sealing ring is used to increase the sealing performance; 3. Each processing part can be guaranteed to be in one Within the constant tolerance size range, the quality is guaranteed to be stable, and the installation is convenient, which maximizes the performance-price ratio and usability of the product. the

The utility model of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. the

Description of drawings

Fig. 1 is the sectional view of the cable connection device of the utility model of the present invention;

Figure 2 is a schematic diagram of the assembly of the cable connection device of the new utility model;

Fig. 3 is the second assembly schematic diagram of the cable connection device of the present invention;

Fig. 4 is a third schematic diagram of the assembly of the cable connection device of the present invention. the

In the figure, 1. The first cable parallel cap; 2. The first flat gasket; 3. The first sealing ring; 4. Protective tube; 5. The second flat gasket; 6. The second sealing ring; 7. The second cable parallel Cap; 8. The first cable; 9. The second cable; 10. The cable joint. the

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific embodiments. the

With reference to Figure 1, the new type of special hydraulic cable connection device for harsh environments includes a first cable parallel cap (1), and one end of the first cable line (8) passes through the first cable parallel cap (1) and connects with it Fixed, one end of the second cable (9) passes through the second cable and cap (7) and is fixed with it, there is a flat gasket and a sealing ring between the cable and the protective tube (4), and its position is the cable And caps, flat pads, sealing rings, flat pads. In the figure, the cables and caps of the components work at both ends of the protective tube respectively. The function is that after the cable joint is connected, it passes through the cable at the cable joint, the first flat pad (2), the first sealing ring (3) and the protective tube (4). , through the first cable parallel cap (1) and the upper screw thread of the protective tube (4), and at the same time squeeze the sealing ring to fix the cable, preventing the cable from falling off during pulling, so that the cable and the first sealing ring (3), The protective tube (4) is tightly connected and integrated; the sealing rings work at both ends of the protective tube (4) respectively, and each end is two, and the function is to squeeze the first sealing ring ( 3), so that the first sealing ring (3) can be effectively deformed within the range and tightly connected with the cable and the protective tube (4) to form a good sealing effect; the role of the protective tube (4) is to protect The effective space between the cable and the cable connection at the cable joint prevents water from entering the cable connection. the

As a preferred solution of the present utility model, the first cable joint cap (1), flat pad (2) and protective tube (4) in the special hydraulic cable connection device for harsh environments of the present invention are made of 304 stainless steel. The sealing ring is made of polytetrafluoroethylene. the

With reference to Figures 2-4, when installing the special hydraulic cable connection device for harsh environments of the present invention, the cable should be pulled to the same position as the output cable of the monitoring instrument, and the preparation work before wiring the cable ends at both ends should be carried out. The detailed installation requirements are as follows:

1. Clean up the debris at the output joint of the monitoring instrument that needs to be extended and at the joint of the connecting cable;

2. Use special measuring equipment to measure the monitoring instrument before wiring, and make a record of the measured value of the instrument;

3. Mark the serial number of the monitoring instrument and the two ends of the cable to be connected, and make a record at the same time;

4. At the output joint of the monitoring instrument that needs to extend the cable, install the first cable cap (1), one first flat pad (2), and two first sealing rings (3) according to the sequence shown in Figure 2 , another first flat pad (2);

5. To connect the cable joint (10), install the second cable parallel cap (7), one second flat pad (5), two second sealing rings (6) according to the order shown in Figure 2, Another second flat pad (5), one protective tube (4);

6. After installing the parts of the special hydraulic cable connection device in harsh environments, see Figure 3, connect the multi-core cables one by one, and do a good job of insulation protection;

7. After the cables are connected and insulated, refer to Figure 4 again, connect the protective tube with the cap threads of the cables at both ends, and tighten them with two wrenches, making full use of the effective deformation of the sealing ring within the elastic range, so that After the connection, the cable joint is in the protective tube, and the cable, the sealing ring and the protective tube are tightly connected and integrated, and a sealing device that realizes a reliable connection between the cable and the cable under high water pressure;

8. After the sealing device is installed, measure the monitoring instrument with special measuring equipment after wiring, and make a record of the measured value of the instrument. the

The principle of this new model: When the output cable of the monitoring instrument is not long enough, it needs to be extended. When the cable is connected to the cable, the function of the cable capping function of the special hydraulic cable connection convenient device in this harsh environment is after the cable connector is connected. , pass through the cable, flat gasket, sealing ring and protective tube at the cable joint, connect the screw thread on the protective tube through the cable cap, and squeeze the sealing ring at the same time, making full use of the effective deformation of the sealing ring within the elastic range to fix the cable , to prevent the cable from falling off during pulling, so that the cable, the sealing ring and the protective tube are tightly connected and integrated; the function of the flat pad is to protect the sealing ring from being damaged when the cable is connected to the cap; the function of the protective tube is to protect the cable at the cable joint. Water enters the effective space of the cable connection and the cable connection; the function of the sealing ring is to squeeze the sealing ring when the cable is connected to the cap, so that the sealing ring can be effectively deformed within the range and integrated with the tight connection of the cable and the protective tube to play a role. Good sealing effect; high pressure resistance, high and low temperature resistance, corrosion resistance, and pull resistance. It is a sealing device for connecting cables at high water levels. the

Compared with the traditional cable connection method, this new type of convenient device for hydraulic cable connection in harsh environments has significant advantages, as shown in Table 1: 

Table 1

The basic principles and main features of the utility model and the advantages of the utility model have been described above. The utility model is not limited by the above-mentioned embodiment, and what described in the above-mentioned embodiment and the description is only to illustrate the principle of the utility model, and the utility model also has various changes and changes without departing from the spirit and scope of the utility model. Improvements, these changes and improvements all fall within the scope of the claimed utility model of the present invention. The scope of protection required by the utility model is defined by the appended claims and their equivalents. the

Claims (7)

1. A special hydraulic cable connection device in harsh environments, characterized in that it includes a first cable parallel cap and a second cable parallel cap, and one end of the first cable passes through the first cable parallel cap and is fixed thereto. One end of the second cable wire passes through the second cable parallel cap and is fixed thereto, and the first cable parallel cap and the second cable parallel cap are respectively connected to two ends of the protective tube through screw threads. the 2. The special hydraulic cable connection device for harsh environments according to claim 1, characterized in that a sealing assembly is provided between the first cable parallel cap and the second cable parallel cap and the protective tube. the 3. The special hydraulic cable connection device under harsh environment according to claim 2, characterized in that, the sealing assembly includes a flat gasket and a sealing ring, and its positions are sequentially the first cable parallel cap or the second cable parallel cap, Flat pads, sealing rings, flat pads. the 4. The special hydraulic cable connection device for harsh environments according to claim 3, wherein the sealing rings are respectively arranged at both ends of the protective tube, and there are two at each end. the 5. The special hydraulic cable connection device for harsh environments according to claim 2, characterized in that, the first cable cap and protective tube are made of 304 stainless steel. the 6. The hydraulic cable connection device for harsh environments according to claim 3, wherein the flat pad is made of 304 stainless steel. the 7. The hydraulic cable connection device for harsh environments according to claim 3, wherein the sealing ring is made of polytetrafluoroethylene. the

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