An outdoor cable terminal filled with environmental gas under super high pressure

Abstract

The application discloses an outdoor cable terminal filled with environmental gas under super high pressure, and particularly relates to the technical field of cable installation, which comprises a gas filling installation component and a gas supplementing installation component, wherein the gas filling installation component comprises a partition strip, a film body and a rotating rod; the partition strip is fixed to the inner wall of a terminal sleeve, and the partition strip is connected with the film body which can be cut on one side; the rotating rod is rotatably arranged on one side of the inner wall of the film body; and the gas supplementing installation component comprises an arc-shaped film which is fixedly connected to one side of a groove strip. The gas filling installation component and the gas supplementing installation component can realize self-dosing gas filling and gas supplementing installation according to a specified amount inside the terminal sleeve, thereby effectively avoiding the inconvenience caused by carrying equipment during outdoor installation, and greatly improving the installation efficiency of the cable terminal, so that the problem of low installation efficiency of the cable terminal caused by the fact that the terminal itself is not pre-set with a gas filling and supplementing function and is difficult to realize self-dosing operation inside is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable installation, in particular to an outdoor terminal of a cable filled with environmentally friendly gas under super high voltage. BACKGROUND

[0002] The outdoor terminal of the cable filled with environmentally friendly gas under super high voltage plays an important role in the process of cable installation and operation, and its functions are combined with high voltage insulation, environmental protection requirements and outdoor environmental adaptability. The core function is in the super high voltage cable system of 500kV and above. The terminal needs to withstand hundreds of thousands of volts of voltage. The traditional air insulation is easy to cause corona discharge or breakdown. The environmentally friendly gas is a mixture of heptafluoroisobutyl nitrile and carbon dioxide. The insulation strength of the environmentally friendly gas is better than that of air, which prevents partial discharge and ensures the safe operation of the cable after installation.

[0003] In the existing public literature, the patent with the patent announcement number CN203466512U discloses a whole prefabricated outdoor terminal installation tool of silicone rubber. The tool inserts into the inner hole of the terminal tail to inflate the terminal. A top plate is used to fix the inflation cylinder, and the top plate is fixedly connected with the fixing frame. The utility model has the advantages of compact overall structure, light weight, high strength and convenient carrying. The flexible cable terminal is fixed by using the tool to form a rigid whole, which avoids deformation of the terminal during installation and keeps the terminal and the cable in the coaxial position. The fixing of the clamping plate enables the terminal to be subjected to overall stress during the forward movement, thereby preventing serious tensile deformation, improving installation efficiency and reducing installation damage probability. However, the patent has the following defects.

[0004] When the outdoor terminal of the super high voltage cable is installed in a sleeve, the process of filling and supplementing the environmentally friendly gas is complicated. A large amount of protective gas guide and storage pipelines are needed to fill the gas into the terminal. Heavy supporting equipment needs to be carried. After inflation, the pipelines need to be disconnected one by one. During the later gas supplementing process, the same operation of carrying, connecting and disconnecting the equipment pipelines needs to be repeated. The inflation and gas supplementing need to be performed according to the standard pressure specifications. The inflation cylinder is difficult to accurately control the pressure. If the pressure is too large, the sealing performance will be poor. If the pressure is too small, the high voltage insulation effect will be reduced. Since the terminal itself is not pre-set with the functions of filling and supplementing the gas, it is difficult to realize the internal self-regulating operation. Therefore, the process of filling and supplementing the gas in the outdoor installation is time-consuming and labor-intensive, which increases the operation complexity and cost and greatly reduces the installation efficiency of the cable terminal. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides the following technical scheme: an outdoor terminal of a cable filled with environmentally friendly gas under super high voltage, comprising a terminal sleeve, a sealing sleeve is fixedly connected to both ends of the terminal sleeve, a gas filling and installation assembly is arranged on the inner wall of the terminal sleeve, and the gas filling and installation assembly comprises:

[0006] The partition strip is fixed to the inner wall of the terminal sleeve, and one side of the partition strip is connected with a breakable film body;

[0007] The rotating rod is arranged on one side of the inner wall of the film body, and a cutting blade is fixed to the inner side of the rotating rod;

[0008] The groove strip is fixedly connected to one side of the edge of the film body, and a partition plate is fixedly connected to the outer wall of the groove strip, so that a sealed preset air cavity is formed between the partition plate and the inner wall of the terminal sleeve, and a gas supplement mounting assembly is arranged on one side of the groove strip, and the gas supplement mounting assembly comprises:

[0009] The arc-shaped film is fixedly connected to one side of the groove strip, one side of the arc-shaped film is fixedly connected with a support strip, and a gas supplement cavity is arranged between the partition plate and the support strip;

[0010] The top end of the rotating rod is provided with a sealing linkage mechanism, and the sealing linkage mechanism is used to drive the rotating rod to rotate in a sealed state.

[0011] In a preferred embodiment, a gap is arranged between the groove strip and the rotating rod, and the partition plate is fixedly connected to the terminal sleeve.

[0012] In a preferred embodiment, the arc-shaped film and the support strip are both rotationally connected with the rotating rod, and the outer wall of the rotating rod is a smooth surface.

[0013] In a preferred embodiment, the sealing linkage mechanism comprises:

[0014] The linkage rod is fixedly connected to the top end of the rotating rod, and the linkage rod is rotationally connected with the sealing sleeve;

[0015] The rotating cap is fixedly installed at the top end of the linkage rod, and the outer part of the rotating cap is provided with a silica gel sleeve, and the bottom end of the silica gel sleeve is fixedly connected with the sealing sleeve.

[0016] In a preferred embodiment, the cross-sectional shape of the rotating cap is polygonal, a support block is arranged between the linkage rod and the rotating cap, and the bottom end of the support block is fixedly connected with the sealing sleeve.

[0017] One side of the support block is fixedly connected with an elastic strip, one end of the elastic strip is fixedly installed with a linkage block, the linkage block is fixedly connected with the linkage rod, and the linkage block and the elastic strip are both slidingly connected with the sealing sleeve.

[0018] In a preferred embodiment, the inner wall of the sealing sleeve is fixedly connected with a soft pad ring, and the cross-sectional shape of the soft pad ring is a circular ring.

[0019] In a preferred embodiment, a plug column is installed in the inside of the gas supplement cavity, the plug column is inserted into the terminal sleeve, and the plug column is made of rubber material.

[0020] In a preferred embodiment, the inside of the preset air cavity is provided with a plug post which is inserted into the terminal sleeve.

[0021] In a preferred embodiment, the plug post is made of rubber material, and the outer wall of the plug post is smooth.

[0022] Technical effects and advantages of the present application:

[0023] 1. The present application adopts the inflation installation assembly and the air supplement installation assembly. When the preset internal inflation is performed, the rotating shaft drives the blade to rotate and cut the film body, so that the specified amount of environment-friendly gas in the preset air cavity spreads between the terminal sleeve and the cable, and the self-inflation operation is completed. When the preset internal air supplement is performed, the blade rotates to cut the arc-shaped film, and the specified amount of environment-friendly gas in the air supplement cavity is released, so that the self-air supplement operation is realized. The entire process does not require personnel to carry a large amount of air supplement equipment and inflation equipment and related pipelines, and the self-determined and quantitative inflation and air supplement installation operation can be completed in the terminal sleeve, thereby effectively avoiding the complexity caused by carrying equipment during outdoor installation, saving time and labor during inflation and air supplement installation, reducing operation complexity and cost, and greatly improving the installation efficiency of the cable terminal.

[0024] 2. The present application adopts the inflation installation assembly and the air supplement installation assembly, integrates the preset air cavity and the air supplement cavity in the terminal sleeve, and utilizes the rotating shaft to drive the blade to rotate and cut the film body and the arc-shaped film, respectively, to complete the quantitative inflation and air supplement operation. Without external complex inflation and air supplement equipment and pipelines, the film body and the arc-shaped film are kept in a tight state to ensure accurate and controllable cutting, so that the overall structure of the terminal sleeve is compact, the installation and transportation volume is reduced, the installation cost is greatly reduced, and the installation efficiency is improved.

[0025] 3. The present application adopts the sealing linkage mechanism, utilizes the sharp-nose pliers to hold the silica gel soft sleeve to drive the rotating cap, drives the linkage rod to rotate counterclockwise by one hundred and eighty degrees in the sealing sleeve, the linkage block synchronously stretches the elastic strip in this process, and the sealing sleeve is fixed to the support block by means of the fixing force, so that the rotating of the linkage rod needs a large external force, effectively prevents the misoperation when the terminal sleeve is not installed, and the sealing sleeve and the linkage rod are tightly matched to form a dynamic sealing structure, so that there is no gas leakage during rotation, and the rotating shaft can rotate in a sealed environment. During the self-inflation and air supplement process in the terminal sleeve, the sealing performance of the terminal sleeve during the self-inflation and air supplement installation is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the cable outdoor terminal filled with environment-friendly gas under super high pressure.

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the cable outdoor terminal filled with environment-friendly gas under super high pressure.

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the cable outdoor terminal filled with environment-friendly gas under super high pressure. Figure 2Enlarged view of structure at middle A.

[0029] Figure 4 Schematic view of local structure at connection between spacer and membrane body of the present application.

[0030] Figure 5 Schematic view of local structure at truncated connection between spacer and membrane body of the present application.

[0031] Figure 6 Schematic view of vertical cross-section structure of outdoor terminal of cable of the present application filled with environmentally friendly gas under super high pressure.

[0032] Figure 7 Schematic view of vertical cross-section truncated local structure at connection between linkage rod and rotating rod of the present application.

[0033] Figure 8 Schematic view of vertical cross-section truncated local structure at connection between linkage rod and rotating cap of the present application.

[0034] Figure 9 Schematic view of vertical cross-section truncated local structure at connection between linkage rod and rotating cap of the present application. Figure 8 Enlarged view of structure at middle B.

[0035] Figure 10 Schematic view of local structure at connection between terminal sleeve and plug column of the present application.

[0036] The reference signs are: 1, terminal sleeve; 2, sealing sleeve; 3, spacer; 4, membrane body; 5, rotating rod; 6, blade; 7, slot strip; 8, partition plate; 9, preset air cavity; 10, arc-shaped membrane; 11, support strip; 12, air supplement cavity; 13, linkage rod; 14, rotating cap; 15, silica gel soft sleeve; 16, support block; 17, elastic strip; 18, linkage block; 19, soft pad ring; 20, plug column; 21, plug column. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] As shown in the accompanying drawings Figure 1 As shown in the accompanying drawings Figure 10An outdoor terminal of a super-high voltage cable filled with environment-friendly gas is shown, which is provided with a gas filling installation assembly, a gas supplementing installation assembly and a sealing linkage mechanism. The installation of each assembly can complete the independent and quantitative gas filling and supplementing installation operation in the terminal sleeve 1, effectively avoiding the complexity caused by carrying equipment during outdoor installation, saving time and labor for gas filling and supplementing installation, reducing the operation complexity and cost, and greatly improving the installation efficiency of the cable terminal. The specific structure of each assembly is as follows.

[0039] In this embodiment, as shown in the accompanying Figure 1 - the accompanying Figure 5 , the gas filling installation assembly comprises a partition strip 3 fixed to the inner wall of the terminal sleeve 1, one side of the partition strip 3 being connected with a breakable film body 4; a rotating rod 5 is rotatably arranged on one side of the inner wall of the film body 4, and a cutting blade 6 is fixedly arranged on the inner side of the rotating rod 5; a groove strip 7 is fixedly connected to one side of the edge of the film body 4, the outer wall of the groove strip 7 is fixedly connected with a partition plate 8, the partition plate 8 and the inner wall of the terminal sleeve 1 form a sealed preset gas cavity 9, and one side of the groove strip 7 is provided with a gas supplementing installation assembly. The gas supplementing installation assembly comprises an arc-shaped film 10 fixedly connected to one side of the groove strip 7, one side of the arc-shaped film 10 is fixedly connected with a support strip 11, and a gas supplementing cavity 12 is arranged between the partition plate 8 and the support strip 11. A sealing linkage mechanism is installed at the top end of the rotating rod 5, and the sealing linkage mechanism is used to drive the rotating rod 5 to rotate while maintaining the sealing state. A gap is arranged between the groove strip 7 and the rotating rod 5, and the partition plate 8 is fixedly connected with the terminal sleeve 1. The arc-shaped film 10 and the support strip 11 are both rotatably connected with the rotating rod 5, and the outer wall of the rotating rod 5 is a smooth surface. In order to facilitate the counterclockwise rotation of the rotating rod 5 and the cutting blade 6, the film body 4 needs to be kept in a taut state and attached to the outer wall of the rotating rod 5. When the cutting blade 6 rotates counterclockwise by one hundred and eighty degrees, the cutting blade 6 will press and contact the film body 4, so that the cutting blade 6 realizes the taut and breaking operation on the film body 4. At this time, the preset gas cavity 9 inside the specified amount of environment-friendly gas begins to spread, and the internal gas filling operation of the environment-friendly gas between the terminal sleeve 1 and the cable is realized. When the gas needs to be supplemented later, the rotating rod 5 drives the cutting blade 6 to continue to rotate clockwise, and the cutting blade 6 starts to rotate along the groove of the groove strip 7 and contacts the arc-shaped film 10. The arc-shaped film 10 is in a pumping state and contacts the cutting blade 6, so that the arc-shaped film 10 can be broken, and the specified amount of gas supplementing environment-friendly gas in the gas supplementing cavity 12 can be released to the terminal sleeve 1 and the cable. In this way, the self-supplementing gas is more time-saving and labor-saving, and there is no need to carry gas supplementing equipment.

[0040] In this embodiment, as shown in the accompanying Figure 6 - the accompanying Figure 8 , wherein the accompanying Figure 7 is a partial view of the connection between the linkage rod 13 and the rotating rod 5 in the accompanying Figure 6 , and the accompanying Figure 8 is a partial view of the connection between the linkage rod 13 and the rotating rod 5 in the accompanying Figure 6The partial view of the upper part of the middle sealing sleeve 2, the sealing linkage mechanism comprises: a linkage rod 13 fixedly connected to the top end of the rotating rod 5, the linkage rod 13 is rotatably connected between the sealing sleeve 2; a rotating cap 14 is fixedly installed at the top end of the linkage rod 13, the outside of the rotating cap 14 is provided with a silica gel sleeve 15, the bottom end of the silica gel sleeve 15 is fixedly connected between the sealing sleeve 2, so as to clamp the silica gel sleeve 15 outside the rotating cap 14 by using the needle-nose pliers, the silica gel sleeve 15 is squeezed and wrapped on the outer wall of the rotating cap 14 under stress, the rotating cap 14 drives the linkage rod 13 to rotate, and the rotating cap 14 can be rotated under the sealed state of the silica gel sleeve 15, so that the linkage rod 13 drives the rotating rod 5 to rotate counterclockwise by one hundred and eighty degrees under the sealed state, and the leakage of the environmental protection gas in the terminal sleeve 1 from the gap in the rotation is avoided.

[0041] In the embodiment, as shown in the accompanying drawings, Figure 9 The cross section shape of the rotating cap 14 is polygonal, a supporting block 16 is arranged between the linkage rod 13 and the rotating cap 14, the bottom end of the supporting block 16 is fixedly connected with the sealing sleeve 2; one side of the supporting block 16 is fixedly connected with an elastic strip 17, one end of the elastic strip 17 is fixedly installed with a linkage block 18, the linkage block 18 is fixedly connected with the linkage rod 13, and the linkage block 18 and the elastic strip 17 are slidably connected with the sealing sleeve 2. The inner wall of the sealing sleeve 2 is fixedly connected with a soft pad ring 19, the cross section shape of the soft pad ring 19 is a circular ring, so as to stretch one end of the elastic strip 17 by pulling the linkage block 18, and the other end of the elastic strip 17 is fixedly pulled on the supporting block 16, so that a larger rotating force needs to be applied to the linkage rod 13 to rotate in the sealing sleeve 2, and the misoperation of rotating the rotating cap 14 by other personnel is avoided.

[0042] In the embodiment, as shown in the accompanying drawings, Figure 10 The inside of the gas supplement cavity 12 is installed with a plug column 20, the plug column 20 is inserted into the terminal sleeve 1, and the plug column 20 is made of rubber material, so as to pre-charge the environmental protection gas into the inside of the gas supplement cavity 12, and the outside of the plug column 20 is sealed by inserting into the inside of the terminal sleeve 1 by using glue, so that the glue solidifies to achieve the insertion sealing operation, and the preset environmental protection gas is conveniently introduced into the inside of the gas supplement cavity 12.

[0043] In the embodiment, as shown in the accompanying drawings, Figure 10 The inside of the preset gas cavity 9 is installed with an insertion column 21, and the insertion column 21 is inserted into the terminal sleeve 1. The insertion column 21 is made of rubber material, and the outer wall of the insertion column 21 is smooth, so as to pre-charge the environmental protection gas into the inside of the preset gas cavity 9, and the insertion column 21 is inserted into the hole of the terminal sleeve 1 by coating the outer wall of the insertion column 21 with sealing glue, so as to complete the sealing operation, and the preset environmental protection gas is conveniently introduced into the inside of the preset gas cavity 9.

[0044] The working principle of the cable outdoor terminal for super-high pressure environmental protection gas filling is as follows:

[0045] Firstly, the present application carries out the preset sealing installation, the plug column 20 position is in the open state during the factory preparation, so that the hole position appears in the plug column 20 area on the terminal sleeve 1, the specified amount of environmental protection gas is filled into the gas supplement cavity 12 in advance, then the plug column 20 is sealed and inserted into the terminal sleeve 1 by coating glue on the outside of the plug column 20, until the sealing operation is realized after the glue solidifies, so that the gas supplement cavity 12 area can be filled with the specified amount of gas supplement environmental protection gas in advance. The plug column 21 position is in the open state during the factory preparation, so that the hole position appears in the plug column 21 area on the terminal sleeve 1, the specified amount of environmental protection gas can be filled into the preset gas cavity 9 in advance, the plug column 21 is inserted into the hole position of the terminal sleeve 1 by coating sealing glue on the outer wall of the plug column 21, until the sealing operation is realized after the glue solidifies, so that the preset gas cavity 9 area can be filled with the specified amount of gas filling environmental protection gas in advance. The terminal sleeve 1 can be directly carried to the outdoor super-high voltage cable installation area, without carrying a large amount of gas filling and gas supplement equipment. The sealing glue is coated in the soft pad ring 19 in the two sealing sleeves 2, then the terminal sleeve 1 and the two soft pad rings 19 are passed through the outer wall of the stripped cable, until the two soft pad rings 19 are fixedly sealed and wrapped with the outer wall of the stripped cable after the sealing glue solidifies.

[0046] Secondly, the present application carries out the sealing linkage, the silicon rubber sleeve 15 outside the rotating cap 14 is clamped by using the flat-nose pliers, the silicon rubber sleeve 15 is pressed and adhered to the outer wall of the rotating cap 14 under stress, the rotating cap 14 drives the linkage rod 13 to rotate counterclockwise by one hundred and eighty degrees, so that the linkage rod 13 rotates in the sealing sleeve 2, at the same time, the linkage rod 13 drives the linkage block 18 to rotate counterclockwise by one hundred and eighty degrees, one end of the elastic strip 17 is stretched by the linkage block 18, and the other end of the elastic strip 17 is fixedly pulled on the support block 16, while the sealing sleeve 2 can provide firm fixing force to the support block 16, so that the linkage rod 13 needs to exert a large rotating force to rotate in the sealing sleeve 2, avoiding rotating the linkage rod 13 before the terminal sleeve 1 is installed, avoiding misoperation of other personnel, realizing misoperation protection, so that the linkage rod 13 can drive the rotating rod 5 to rotate counterclockwise by one hundred and eighty degrees, ensuring that the rotating rod 5 rotates counterclockwise in the sealing environment.

[0047] Then, when the preset internal inflation installation is carried out, the rotating rod 5 drives the blade 6 to rotate counterclockwise, at the same time, the terminal sleeve 1 supports the partition strip 3, the partition strip 3 supports the film body 4, at the same time, the terminal sleeve 1 supports the partition plate 8, the partition plate 8 supports the groove strip 7, and the groove strip 7 supports the film body 4, so that the film body 4 is kept in a taut state and is attached to the outer wall of the rotating rod 5, when the blade 6 rotates counterclockwise by 180 degrees, the blade 6 will be pressed and contacted on the film body 4, so that the film body 4 is tautly contacted on the blade 6, and the blade 6 realizes the taut cutting and breaking operation on the film body 4, so that the preset gas cavity 9 internally quantitatively spreads the environmental protection gas, and the quantitatively environmental protection gas is transported into the gap between the terminal sleeve 1 and the cable, that is, the internal inflation operation of the environmental protection gas between the terminal sleeve 1 and the cable is carried out, and the internal self-inflation installation of the terminal sleeve 1 is completed, after the inflation is completed, the rotating cap 14 is loosened, under the action of the elastic force of the elastic strip 17, the elastic strip 17 drives the linkage block 18 to rotate clockwise to reset, the linkage block 18 drives the linkage rod 13 to rotate clockwise to reset, and the linkage rod 13 drives the rotating cap 14 to rotate clockwise to reset to the starting original point.

[0048] Finally, when the preset internal gas supplement installation is carried out, after shutdown according to the maintenance time, when the environmental protection gas needs to be supplemented between the terminal sleeve 1 and the cable, the internal cable of the terminal sleeve 1 is powered off, the silicon rubber sleeve 15 is continuously clamped by using the needle-nose pliers, the silicon rubber sleeve 15 presses the rotating cap 14, and the silicon rubber sleeve 15 is rotated, so that the rotating cap 14 drives the linkage rod 13 to continue to rotate clockwise, the linkage rod 13 drives the rotating rod 5 to continue to rotate clockwise, the rotating rod 5 drives the blade 6 to continue to rotate clockwise, the blade 6 continues to rotate along the groove body in the groove strip 7, the terminal sleeve 1 supports the support strip 11, at the same time, the support strip 11 supports the arc-shaped film 10, and the groove strip 7 supports the arc-shaped film 10, so that the arc-shaped film 10 is realized taut processing. In this way, the blade 6 can rotate and contact the arc-shaped film 10 along the groove body of the groove strip 7, the arc-shaped film 10 is contacted with the blade 6, so that the arc-shaped film 10 is cut and broken, at the same time, the blade 6 is pressed on the side surface of the support strip 11, the support strip 11 supports and limits the blade 6, so that the blade 6 cannot rotate any more, so that the specified amount of gas supplement environmental protection gas in the gas supplement cavity 12 can be released between the terminal sleeve 1 and the cable, so that the internal self-gas supplement operation of the terminal sleeve 1 is continued, so that when the terminal sleeve 1 and the cable are installed by supplementing gas, the internal self-gas supplement operation is carried out according to the specified amount, without the need for personnel to carry a large amount of gas supplement equipment and pipeline for operation. Secondly, it needs to be explained that the environmental protection gas described above is a mixed gas of heptafluoroisobutyl nitrile and carbon dioxide, which has the advantages of good insulation and good environmental protection.

[0049] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An outdoor terminal for an ultra-high-pressure cable filled with environmentally friendly gas, comprising a terminal sleeve with sealing sleeves fixedly connected at both ends thereof, characterized in that: The inner wall of the terminal sleeve is provided with an inflatable mounting assembly, which includes: The diaphragm is fixed to the inner wall of the terminal sleeve, and one side of the diaphragm is connected to a cuttable membrane; a rotating rod is rotatably arranged on one side of the inner wall of the membrane, and a cutting blade is fixedly arranged on the inner side of the rotating rod; a groove is fixedly connected to one side of the edge of the connecting membrane, and the outer wall of the groove is fixedly connected to the partition, and the partition and the inner wall of the terminal sleeve form a sealed preset air cavity, and an air supply installation component is provided on one side of the groove, and the air supply installation component includes: an arc-shaped membrane, fixedly connected to one side of the groove, and a support strip is fixedly connected to one side of the arc-shaped membrane, and an air supply cavity is provided between the partition and the support strip; a sealing linkage mechanism is installed on the top of the connecting rotating rod, and the sealing linkage mechanism is used to drive the rotating rod to rotate while maintaining a sealed state. When the preset internal inflation is installed, the rotating rod drives the blade to rotate counterclockwise, and at the same time, the terminal sleeve supports the diaphragm, and the diaphragm supports the membrane body. The end sleeve supports the partition, the partition supports the groove, and the groove supports the membrane body. The membrane body remains taut and fits on the outer wall of the rotating rod. When the blade rotates one hundred and eighty degrees counterclockwise, the blade will squeeze and contact the membrane body, and the membrane body is tautly contacted on the blade. The blade performs a tightening and cutting operation on the membrane body, so that a certain amount of environmentally friendly gas inside the preset air cavity begins to spread, and a certain amount of environmentally friendly gas begins to be transported to the gap between the terminal sleeve and the cable, through the terminal sleeve supporting the support bar, and at the same time the support bar supports the arc membrane, and the groove supports the arc membrane, so that the arc membrane is tightened, so that the blade rotates along the groove body and contacts the arc membrane, and the arc membrane contacts the blade, causing the arc membrane to be cut, so that the specified amount of air-replenishing environmentally friendly gas inside the air-replenishing cavity is released between the terminal sleeve and the cable.

2. The ultra-high-pressure, environmentally friendly gas-filled cable outdoor terminal according to claim 1, characterized in that: A gap is provided between the groove bar and the rotating rod, and the partition is fixedly connected to the terminal sleeve.

3. The ultra-high-pressure, environmentally friendly gas-filled cable outdoor terminal according to claim 1, characterized in that: The arc-shaped membrane and the support bars are both rotatably connected to the rotating rod, and the outer wall of the rotating rod is a smooth surface.

4. The ultra-high-pressure, environmentally friendly gas-filled cable outdoor terminal according to claim 1, characterized in that: The sealing linkage mechanism comprises: A linkage rod is fixedly connected to the top end of the rotating rod, and the linkage rod is rotationally connected to the sealing sleeve; The rotating cap is fixedly mounted on the top end of the linkage rod. A silicone soft sleeve is provided on the outside of the rotating cap. The bottom end of the silicone soft sleeve is fixedly connected to the sealing sleeve.

5. The ultra-high-pressure, environmentally friendly gas-filled cable outdoor terminal according to claim 4, characterized in that: The cross-section of the rotating cap is polygonal, a support block is provided between the linkage rod and the rotating cap, and the bottom end of the support block is fixedly connected to the sealing sleeve; An elastic strip is fixedly connected to one side of the support block, and a linkage block is fixedly installed on one end of the elastic strip. The linkage block is fixedly connected to the linkage rod, and the linkage block and the elastic strip are both slidably connected to the sealing sleeve.

6. The ultra-high-pressure, environmentally friendly gas-filled cable outdoor terminal according to claim 1, characterized in that: A soft gasket ring is fixedly connected to the inner wall of the sealing sleeve, and the cross-section of the soft gasket ring is in the shape of a circular ring.

7. The ultra-high-pressure, environmentally friendly gas-filled cable outdoor terminal according to claim 1, characterized in that: A plug is installed inside the air-supply cavity, the plug is plugged into the terminal sleeve, and the plug is made of rubber.

8. The ultra-high-pressure, environmentally friendly gas-filled cable outdoor terminal according to claim 1, characterized in that: A plug-in post is installed inside the preset air cavity, and the plug-in post is plugged into the terminal sleeve.

9. The ultra-high-pressure, environmentally friendly gas-filled cable outdoor terminal according to claim 8, characterized in that: The plug post is made of rubber material, and the outer wall of the plug post is a smooth surface.

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