Intelligent terminal fusion device for low-voltage distribution area

Abstract

The invention relates to an intelligent terminal fusion device for a low-voltage distribution area, and belongs to the technical field of electric power. The intelligent tail end fusion device for the low-voltage distribution area comprises a male plug, a female plug is inserted into the surface of the male plug, and a protection mechanism arranged on the surface of the female plug in a sleeving mode is fixedly connected to the surface of the male plug; by adopting the design of covering the male plug and the female plug, external dust, water vapor and other impurities can be prevented from invading the male plug or the female plug so as to ensure that the male plug and the female plug can operate normally, and by adopting the design of the enhanced sealing assembly, gaps among the female plug, the protective sleeve and the protective frame can be sealed, and the sealing effect is improved. Therefore, the sealing effect of the male plug and the female plug is improved, even if the female plug is not connected with the male plug, the extruded reinforced sealing assembly can also fill the installation position reserved for the female plug between the two protection frames, and the male plug is kept intact all the time.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology, and in particular to an intelligent terminal fusion device for a low-voltage distribution station area. Background Art

[0002] The low-voltage distribution station is an important part of the power system. It is responsible for converting the electric energy of the medium-voltage power system into low-voltage electric energy, and stably supplies electric energy to residents, commercial buildings and industrial electricity users through transmission lines and distribution equipment. The station intelligent fusion terminal is an intelligent terminal device in the power system that integrates multiple functions. It is mainly deployed at the end of the low-voltage distribution station to realize remote intelligent monitoring, metering, control and operation management of low-voltage power supply equipment.

[0003] The Chinese patent discloses a smart fusion terminal for a substation (authorization announcement number is CN214205093U). When the smart fusion terminal for a substation is in use, the spring and the clamping block in the internal fixing frame of the wiring board are used in coordination to realize the rapid fixing and clamping of the wire ends of the connecting wires. The button and the push rod are used in coordination to realize the rapid pushing of the clamping block, thereby realizing the rapid adjustment of the overlapping part of the clamping block and the wiring hole, thereby facilitating the fast insertion of the wire ends of the connecting wires into the wiring holes to complete the wiring work. At the same time, the wire ends of the connecting wires can be quickly separated from the wiring holes by pressing the button.

[0004] At present, the intelligent fusion terminal in the substation usually needs to have waterproof and moisture-proof functions to adapt to different environments. Although the above-mentioned device can quickly load and unload the connecting wire ends, when some wiring holes are not in use, the wiring holes are exposed to the outside, and external moisture, dust and other impurities can easily enter, which will block or corrode the wiring holes, increase the problem of poor contact of the intelligent fusion terminal in the substation, and even short-circuit damage in severe cases, making it difficult to ensure its normal operation. Summary of the invention

[0005] Based on this, it is necessary to provide an intelligent terminal fusion device for low-voltage distribution station area to address the problem of poor protection performance of wiring ports in existing intelligent fusion terminals in the area.

[0006] An intelligent terminal fusion device for a low-voltage distribution station area comprises a male plug, a female plug is inserted into the surface of the male plug, and a protective mechanism sleeved on the surface of the female plug is fixedly connected to the surface of the male plug.

[0007] Furthermore, the protective mechanism includes a protective sleeve, which is fixedly connected to the surface of the male plug, and two protective frames are inserted into the inner side of the protective sleeve, and the two protective frames together form a rectangle. An installation cavity is opened on the inner side of the protective frame, and a locking strip that is engaged with the protective sleeve is slidably connected inside the installation cavity, and an air spring is arranged between the locking strip and the installation cavity; a plastic strip arranged above the locking strip is fixedly connected inside the installation cavity, and a metal spring that is always in a compressed state is arranged between the plastic strip and the installation cavity, and a reset block that contacts the locking strip is fixedly connected to the bottom of the plastic strip.

[0008] In one of the embodiments, a design of covering the male plug and the female plug is adopted, which can prevent external impurities such as dust and water vapor from invading the male plug or the female plug to ensure that the male plug and the female plug can operate normally; when the male plug and the female plug heat up due to a line fault, the plastic strip can melt before the male plug and the female plug catch fire, so that the metal spring can unlock the protective cover and the protective frame and release compressed nitrogen through the reset block and the piercing needle respectively, and the compressed nitrogen can actively push and separate the male plug and the female plug to avoid the female plug and the male plug being continuously connected together, so as to reduce the probability of fire, and even if the female plug and the male plug have caught fire, the female plug and the male plug are covered with nitrogen, which can also isolate the female plug and the male plug from oxygen, increase the difficulty of burning the female plug and the male plug, and thus achieve the effect of extinguishing the fire.

[0009] Furthermore, the protection mechanism also includes two reinforced sealing components, which include a U-shaped sealing airbag, a semicircular sealing airbag and an extrusion airbag. The U-shaped sealing airbag is embedded and installed on the surface of the protection frame, and the two U-shaped sealing airbags together form a ring frame covering the opening of the protective sleeve. The semicircular sealing airbag and the extrusion airbag are both embedded and installed on the inner side of the protection frame. The two protection frames together form a cylindrical tube that wraps the female plug. The air spring, U-shaped sealing airbag and semicircular sealing airbag are all fixedly connected and communicated with the extrusion airbag.

[0010] In one of the embodiments, a reinforced sealing component is designed, which can not only seal the gaps between the female plug, the protective sleeve and the protective frame to improve the sealing effect on the male plug and the female plug, but also, even if the female plug is not connected to the male plug, the squeezed reinforced sealing component can fill the installation position reserved for the female plug between the two protective frames, so that the male plug always remains intact.

[0011] Furthermore, a slot is provided at one end of the protective frame, the extrusion airbag is embedded and installed inside the slot, and one end of the protective frame is fixedly connected to a plug block that is plugged into the adjacent slot. The slot and the plug block are symmetrically distributed on both sides of the axis of the protective frame, and one end of the plug block is in contact with the extrusion airbag.

[0012] In one embodiment, this can increase the compression effect on the extrusion bladder to improve the utilization of the nitrogen inside the extrusion bladder.

[0013] Furthermore, the interiors of the air spring, the U-shaped sealed airbag, the semicircular sealed airbag and the extrusion airbag are all filled with nitrogen.

[0014] In one embodiment, this can extinguish the fire in time when the female plug and the male plug are on fire, so as to achieve the purpose of fire extinguishing.

[0015] Furthermore, two relatively vertical inner walls of the protective sleeve are provided with positioning grooves for engaging with the adjacent locking strips, and the vertical cross-sectional shapes of the positioning grooves and the engaging parts of the locking strips and the positioning grooves are matching right-angled trapezoids, and the inclined surfaces of the positioning grooves and the locking strips are both facing upwards.

[0016] In one embodiment, this enables the staff to plug the protection frame and the protection sleeve into place without adjusting the position of the locking strip, thereby reducing the installation complexity for the staff.

[0017] Furthermore, the top of the locking bar is inclined and forms an angle of forty-five degrees with the horizontal plane, the top of the locking bar faces away from the air spring, the bottom of the reset block is inclined and forms an angle of forty-five degrees with the horizontal plane, and the bottom of the reset block matches and fits together with the top of the locking bar.

[0018] In one of the embodiments, this can reduce the difficulty of resetting the locking bar by the resetting block, so as to ensure the success rate of nitrogen actively separating the male plug from the female plug.

[0019] Furthermore, a pricking needle is fixedly connected to the bottom of the plastic strip, and the pricking needle is arranged just above the air spring.

[0020] In one embodiment, this can actively puncture the air spring, allowing the compressed nitrogen to function normally.

[0021] Furthermore, the number of the needles is not less than three, and the distance between two adjacent needles is the same.

[0022] In one embodiment, this can increase the number of breaks in the air spring, increasing the rate at which nitrogen can escape.

[0023] Furthermore, an air guide hole connected to the bottom of the needle is provided on the surface of the needle, and the opening of the air guide hole faces the opening of the installation cavity and the female plug.

[0024] In one embodiment, this can increase the available outflow paths for nitrogen, further accelerating the outflow rate of nitrogen.

[0025] Furthermore, one end of the locking strip is fixedly connected to a sealing adjustment block, and one end of the sealing adjustment block passes through the installation cavity and extends to the outside of the protective frame.

[0026] In one embodiment, this can reduce the burden on workers to adjust the locking strip to facilitate removal of the female plug.

[0027] The above-mentioned intelligent terminal fusion device of the low-voltage distribution station area adopts a design of covering the male plug and the female plug, which can prevent external impurities such as dust and water vapor from invading the male plug or the female plug to ensure the normal operation of the male plug and the female plug, and adopts a design of enhanced sealing components, which can not only seal the gap between the female plug, the protective cover and the protective frame to improve the sealing effect of the male plug and the female plug, but also even if the female plug is not connected to the male plug, the squeezed enhanced sealing component can fill the installation position reserved for the female plug between the two protective frames, so that the male plug is always kept intact;

[0028] When the male plug and the female plug heat up due to a line fault, the plastic strip can melt before the male plug and the female plug catch fire, so that the metal spring can unlock the protective sleeve and the protective frame and release the compressed nitrogen through the reset block and the piercing needle respectively. The compressed nitrogen can actively push and separate the male plug and the female plug to avoid the continuous connection between the female plug and the male plug, so as to reduce the probability of fire. Even if the female plug and the male plug have caught fire, the female plug and the male plug are covered with nitrogen, which can also isolate the female plug and the male plug from oxygen, increasing the difficulty of burning the female plug and the male plug, thereby achieving the effect of extinguishing the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the protection mechanism in the present invention;

[0032] Figure 3 for Figure 2 Schematic cross-sectional view along the AA direction;

[0033] Figure 4 for Figure 2 A cross-sectional schematic diagram along the BB direction;

[0034] Figure 5 for Figure 2 Schematic cross-sectional view along CC direction;

[0035] Figure 6 for Figure 2 Schematic cross-sectional view along the DD direction;

[0036] Figure 7 It is a partial explosion schematic diagram of the protection mechanism in the present invention;

[0037] Figure 8 for Figure 3 Enlarged view of E.

[0038] Reference numerals:

[0039] 100. Male plug; 200. Female plug; 300. Protection mechanism; 310. Protection cover; 311. Positioning groove; 320. Protection frame; 321. Mounting cavity; 322. Slot; 330. Locking strip; 340. Air spring; 350. Plastic strip; 360. Metal spring; 370. Reset block; 380. Reinforced sealing assembly; 381. U-shaped sealing airbag; 382. Semicircular sealing airbag; 383. Extrusion airbag; 384. Insert block; 390. Needle; 391. Air guide hole; 3100. Sealing adjustment block. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present invention are for illustrative purposes only and do not represent the only implementation method.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] Unless otherwise defined, all technical and scientific terms used in the specification of the present invention have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in the specification of the present invention includes any and all combinations of one or more related listed items.

[0045] Combine the following Figure 1 - Figure 8 The invention describes the intelligent terminal fusion device of the low-voltage distribution station area.

[0046] In one embodiment, an intelligent terminal fusion device for a low-voltage distribution station area includes a male plug 100, a female plug 200 is plugged into the surface of the male plug 100, and a protective mechanism 300 sleeved on the surface of the female plug 200 is fixedly connected to the surface of the male plug 100;

[0047] The intelligent fusion terminal of the substation includes but is not limited to a protection box, a data acquisition module, a communication module, a control module, a power module and other structural components; the protection box has flame retardant, sealing, dustproof, moisture-proof, waterproof properties, high strength, resistance to deformation, corrosion, aging, and meets the IP51 protection requirements; the data acquisition module is responsible for collecting the operating condition data of the distribution transformer, such as voltage, current, power, frequency, etc.; the communication module supports a variety of communication methods, such as Ethernet, 4G public network, micro-power wireless, etc., to achieve communication with the main station and other equipment; the control module controls or alarms the equipment according to the collected data and preset logic; the power module provides a stable working power supply and has a backup power supply function to ensure that the terminal and the communication module can work normally for a period of time in the event of a power outage; the number of male plugs 100, female plugs 200 and protection mechanisms 300 is the same and not less than five, and the male plug 100 is electrically connected to the corresponding part of the data acquisition module or the control module or the power module; the protective cover 310 is fixedly connected to the surface of the protection box, and the female plug 200 is electrically connected to the external wire;

[0048] When the staff needs to connect the external wire with the female plug 200 with the corresponding male plug 100, the staff only needs to press the sealing adjustment block 3100, and the sealing adjustment block 3100 drives the locking bar 330 to separate from the positioning groove 311. At this time, the protective frame 320 and the protective sleeve 310 lose the obstruction, and the staff can take out the two protective frames 320 from the protective sleeve 310, and then separate the two protective frames 320, and then place the female plug 200 between the two protective frames 320, and then reset the two protective frames 320 to close, and then the staff only needs to insert the two protective frames 320 into the protective sleeve 310 according to the original angle, and the protective frame 320 drives the female plug 200 and the male plug 100 to be plugged together. When the locking bar 330 is just stuck in the positioning groove 311, the female plug 200 and the male plug 100 are just plugged in place. At this time, the data acquisition module or the control module or the power module can transmit data or be powered through the external wire;

[0049] A sliding cavity is opened at the junction of two adjacent vertical inner walls of the protective frame 320, and a rubber spring is arranged inside the sliding cavity. One end of the rubber spring is fixedly connected to a positioning block slidably connected to the sliding cavity, and one end of the positioning block is in contact with the female plug 200. The two adjacent positioning blocks are perpendicular to each other. The four rubber springs can push the female plug 200 to the center through the positioning block, which can self-calibrate the position of the female plug 200 to improve the success rate of the connection between the female plug 200 and the male plug 100.

[0050] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the protection mechanism 300 includes a protection sleeve 310, which is fixedly connected to the surface of the male plug 100. Two protection frames 320 are inserted into the inner side of the protection sleeve 310. The two protection frames 320 together form a rectangle. An installation cavity 321 is opened on the inner side of the protection frame 320. A locking bar 330 that is engaged with the protection sleeve 310 is slidably connected inside the installation cavity 321. An air spring 340 is arranged between the locking bar 330 and the installation cavity 321. One end of the locking bar 330 is fixedly connected to a sealing adjustment block 3100. One end of the sealing adjustment block 3100 passes through the installation cavity 321 and extends to the outside of the protection frame 320. The locking bar 330 and the air spring 340 are connected to each other. One end of the spring 340 is provided with a guide channel that is interconnected, and one of the vertical inner walls of the installation cavity 321 is fixedly connected to a guide column, and two adjacent guide channels are slidably connected to the guide columns. The guide columns can simultaneously limit the running trajectories of the locking bar 330 and the air spring 340 through the guide channels, so that the locking bar 330 and the air spring 340 always run on the preset trajectory; the two relatively vertical inner walls of the protective sleeve 310 are provided with positioning grooves 311 that are clamped with the adjacent locking bars 330, and the vertical cross-sectional shapes of the positioning grooves 311 and the locking bar 330 and the clamping parts of the positioning grooves 311 are both matching right-angled trapezoids, and the inclined surfaces of the positioning grooves 311 and the locking bar 330 are both facing upward.

[0051] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the interior of the installation cavity 321 is fixedly connected with a plastic strip 350 arranged above the locking strip 330, and a metal spring 360 that is always in a compressed state is arranged between the plastic strip 350 and the installation cavity 321. The bottom of the plastic strip 350 is fixedly connected with a reset block 370 that contacts the locking strip 330. The plastic strip 350 can be, but is not limited to, a PVC plastic material component with low melting point and high toughness. The specific material needs to be selected according to the use requirements and is not described here. The bottom of the plastic strip 350 is fixedly connected with a needle 390, which is arranged on the air spring The number of the needles 390 is not less than three, and the distances between two adjacent needles 390 are the same; the surface of the needle 390 is provided with an air guide hole 391 connected to the bottom of the needle 390, and the opening of the air guide hole 391 faces the opening of the installation cavity 321 and the female plug 200; the top of the locking strip 330 is inclined and forms an angle of 45 degrees with the horizontal plane, the top of the locking strip 330 faces away from the air spring 340, the bottom of the reset block 370 is inclined and forms an angle of 45 degrees with the horizontal plane, and the bottom of the reset block 370 matches and fits with the top of the locking strip 330;

[0052] When the temperature between the male plug 100 and the female plug 200 rises due to a short circuit, the air temperature between the protective sleeve 310 and the protective frame 320 rises rapidly. At this time, the air continues to heat the plastic strip 350, and the plastic strip 350 gradually softens. When the plastic strip 350 reaches the melting point, the plastic strip 350 cannot establish a stable connection with the installation cavity 321. The metal spring 360 quickly pushes the plastic strip 350 downward, and the plastic strip 350 moves down along the installation cavity 321 to reset the block 370 and the puncture needle 390. The reset block 370 pushes the locking strip 330 back into the installation cavity 321. At this time, the protection frame 320 and the protective sleeve 310 lose the obstruction, and the puncture needle 390 moves down to puncture the air spring 340. At this time, the air spring 340, the U-shaped sealing airbag 381, the semicircular sealing airbag 382 and the squeeze The nitrogen inside the compressed air bag 383 quickly gushes out from the rupture of the air spring 340 and enters the inner side of the protective frame 320 along the installation cavity 321. At this time, the protective cover 310 and the protective frame 320 are covered by compressed nitrogen, which can not only increase the pressure between the protective frame 320 and the protective cover 310, but also enable the protective frame 320 to drive the female plug 200 and the male plug 100 to actively separate, and avoid the female plug 200 and the male plug 100 from being continuously connected together, so as to reduce the probability of fire. Even if the female plug 200 and the male plug 100 have caught fire, the female plug 200 and the male plug 100 are covered by nitrogen, which can also isolate the female plug 200 and the male plug 100 from oxygen, increase the difficulty of burning the female plug 200 and the male plug 100, and thus achieve the effect of extinguishing the fire.

[0053] like Figure 5 , Figure 6 and Figure 7 As shown, the protection mechanism 300 also includes two enhanced sealing components 380, which include a U-shaped sealing airbag 381, a semicircular sealing airbag 382 and an extrusion airbag 383. The U-shaped sealing airbag 381 is embedded and installed on the surface of the protection frame 320. The two U-shaped sealing airbags 381 together form a ring frame that covers the opening of the protection sleeve 310. The semicircular sealing airbag 382 and the extrusion airbag 383 are embedded and installed on the inner side of the protection frame 320. The two protection frames 320 together form a cylindrical tube that wraps the female plug 200. The air spring 340, the U-shaped sealing airbag 381, and the semicircular sealing airbag 382 and the extrusion airbag 383 are embedded and installed on the inner side of the protection frame 320. The sealing airbag 381 and the semicircular sealing airbag 382 are both fixedly connected and communicated with the extrusion airbag 383; a slot 322 is provided at one end of the protection frame 320, and the extrusion airbag 383 is embedded and installed inside the slot 322; one end of the protection frame 320 is fixedly connected with an insert block 384 plugged into the adjacent slot 322; the slot 322 and the insert block 384 are symmetrically distributed on both sides of the axis of the protection frame 320, and one end of the insert block 384 is in contact with the extrusion airbag 383; the air spring 340, the U-shaped sealing airbag 381, the semicircular sealing airbag 382 and the extrusion airbag 383 are all filled with nitrogen;

[0054] When the staff merges the two protection frames 320 together, the plug 384 is inserted into the slot 322 at the same time, and the plug 384 continuously compresses the extrusion airbag 383 along the slot 322, and the nitrogen inside the extrusion airbag 383 is squeezed into the air spring 340, the U-shaped sealing airbag 381, and the semicircular sealing airbag 382. At this time, the air spring 340 can increase the connection tightness between the locking strip 330 and the positioning groove 311, so that the male plug 100 and the female plug 200 are connected more tightly, and the two U-shaped sealing airbags 381 can cooperate to form a filled ring frame, which can seal the gap between the protective sleeve 310 and the protective frame 320, and prevent external dust, water vapor and other impurities from invading the male plug 100 or the female plug 200. The two semicircular sealing airbags 382 cooperate to seal the gap between the female plug 200 and the protection frame 320, and further prevent external dust, water vapor and other impurities from invading the male plug 100 or the female plug 200.

[0055] It should be noted that the male plug 100, the female plug 200 and the intelligent fusion terminal in the above description are all devices with relatively mature application of existing technologies. The specific models can be selected according to actual needs and will not be described in detail here.

[0056] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An intelligent terminal fusion device for a low-voltage distribution station area, comprising a male plug (100), characterized in that: The surface of the male plug (100) is plugged with a female plug (200), and the surface of the male plug (100) is fixedly connected with a protective mechanism (300) sleeved on the surface of the female plug (200); The protection mechanism (300) comprises a protection sleeve (310), the protection sleeve (310) is fixedly connected to the surface of the male plug (100), two protection frames (320) are inserted into the inner side of the protection sleeve (310), the two protection frames (320) together form a rectangle, the inner side of the protection frame (320) is provided with an installation cavity (321), the interior of the installation cavity (321) is slidably connected with a locking strip (321) that is engaged with the protection sleeve (310) 330), an air spring (340) is arranged between the locking strip (330) and the installation cavity (321); a plastic strip (350) arranged above the locking strip (330) is fixedly connected inside the installation cavity (321), a metal spring (360) which is always in a compressed state is arranged between the plastic strip (350) and the installation cavity (321), and a reset block (370) which contacts the locking strip (330) is fixedly connected to the bottom of the plastic strip (350).

2. The low-voltage distribution station intelligent terminal fusion device according to claim 1 is characterized in that: The protection mechanism (300) further comprises two enhanced sealing components (380), wherein the enhanced sealing components (380) comprise a U-shaped sealing airbag (381), a semicircular sealing airbag (382) and an extrusion airbag (383); the U-shaped sealing airbag (381) is embedded and mounted on the surface of the protection frame (320); the two U-shaped sealing airbags (381) together form a ring frame that covers the opening of the protection sleeve (310); the semicircular sealing airbag (382) and the extrusion airbag (383) are both embedded and mounted on the inner side of the protection frame (320); the two protection frames (320) together form a cylindrical tube that wraps the female plug (200); the air spring (340), the U-shaped sealing airbag (381) and the semicircular sealing airbag (382) are all fixedly connected to and communicated with the extrusion airbag (383).

3. The intelligent terminal fusion device for low-voltage distribution station area according to claim 2 is characterized in that: A slot (322) is provided at one end of the protection frame (320), and the extrusion airbag (383) is embedded and installed inside the slot (322). An insert block (384) that is plugged into an adjacent slot (322) is fixedly connected to one end of the protection frame (320). The slot (322) and the insert block (384) are symmetrically distributed on both sides of the axis of the protection frame (320), and one end of the insert block (384) is in contact with the extrusion airbag (383).

4. The low-voltage distribution station intelligent terminal fusion device according to claim 3 is characterized in that: The interiors of the air spring (340), the U-shaped sealing airbag (381), the semicircular sealing airbag (382) and the extrusion airbag (383) are all filled with nitrogen.

5. The low-voltage distribution station intelligent terminal fusion device according to claim 1 is characterized in that: The two relatively vertical inner walls of the protective sleeve (310) are both provided with positioning grooves (311) for engaging with the adjacent locking strips (330); the vertical cross-sectional shapes of the engaging portions of the positioning grooves (311) and the locking strips (330) with the positioning grooves (311) are both matching right-angled trapezoids, and the inclined surfaces of the positioning grooves (311) and the locking strips (330) are both facing upwards.

6. The low-voltage distribution station intelligent terminal fusion device according to claim 5 is characterized in that: The top of the locking strip (330) is inclined and forms an angle of forty-five degrees with the horizontal plane, the top of the locking strip (330) faces away from the air spring (340), the bottom of the reset block (370) is inclined and forms an angle of forty-five degrees with the horizontal plane, and the bottom of the reset block (370) matches and fits together with the top of the locking strip (330).

7. The low-voltage distribution station intelligent terminal fusion device according to claim 1 is characterized in that: The bottom of the plastic strip (350) is fixedly connected with a needle (390), and the needle (390) is arranged just above the air spring (340).

8. The low-voltage distribution station intelligent terminal fusion device according to claim 7 is characterized in that: The number of the needles (390) is not less than three, and the distances between two adjacent needles (390) are the same.

9. The low-voltage distribution station intelligent terminal fusion device according to claim 7 is characterized in that: The surface of the needle (390) is provided with an air guide hole (391) which is in communication with the bottom of the needle (390), and the opening of the air guide hole (391) faces the opening of the installation cavity (321) and the female plug (200).

10. The intelligent terminal fusion device for low-voltage distribution station area according to claim 1 is characterized in that: One end of the locking strip (330) is fixedly connected to a sealing adjustment block (3100), and one end of the sealing adjustment block (3100) passes through the installation cavity (321) and extends to the outside of the protection frame (320).

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