Environment-friendly sealing insulation interlocking ring main unit

Abstract

The invention belongs to the technical field of ring main units, and particularly relates to an environment-friendly sealing insulation interlocking ring main unit which comprises a cabinet body, a transverse support is arranged on the upper surface of the cabinet body, a longitudinal and transverse support is fixedly installed on the end face of the transverse support through bolts, and a side connecting plate is fixedly installed on the surface of one side of the longitudinal and transverse support through bolts. Curled edges are arranged on the two sides of the surface of one side of the side connecting plate, a bearing hanging plate is fixedly connected to the bottom of the surface of one side of the side connecting plate, and a double-locking structure is formed by clamping the clamping end in the interlocking mechanism with the upper surface of the side base body and matching the bent edges with the inner side wall of the hook part. According to the technical scheme, the stability of the locked pull plate is remarkably improved, even if the ring main unit is subjected to external vibration and impact in the running process, the pull plate is not prone to displacement, when the pull plate is pushed to the target position, the pressing plate automatically completes the clamping action under the action of the tension of the tension spring, and an operator does not need to carry out additional complex manual operation.

Description

Technical Field

[0001] The invention belongs to the technical field of ring network cabinets, in particular to an environmentally friendly sealed insulated interlocking ring network cabinet. Background Art

[0002] Ring main unit (RMU) is a set of high-voltage switchgear with advantages such as simple structure and small size. It is widely used in distribution stations in load centers such as urban residential areas and high-rise buildings. However, traditional RMUs have poor sealing performance, which affects the insulation performance and service life of the equipment. At the same time, its internal installation structure is narrow, which makes it inconvenient to load and unload components, reducing its practicality and ease of operation.

[0003] Solid insulated ring main units use epoxy resin to cast the entire pole into a solid seal. However, epoxy resin is difficult to recycle and degrade, and after curing, it has internal stress, poor impact resistance and crack resistance, and cannot adapt to the use environment in complex areas such as strong pollution, salt fog and humidity, and high altitude. At the same time, the heat dissipation performance is not ideal, which has prompted the industry to seek better insulation materials and technologies.

[0004] A Chinese invention patent publication number CN117317874A discloses a new type of normal pressure environmentally friendly sealed insulated ring network cabinet, which relates to the technical field of insulated ring network cabinet structure. It aims to solve the problem that the sealing performance of the ring network cabinet in the prior art is poor, and its internal installation structure is relatively narrow, which makes it inconvenient to load and unload its internal components, thereby affecting its practicality and ease of operation. The ring network cabinet is provided with a support base at the bottom, and universal wheels are installed on all four sides of the lower surface of the support base. The upper surface of the ring network cabinet is provided with a heat dissipation device, and the upper surface of the heat dissipation device is provided with a heat dissipation fan; it also includes: a first installation slot, which is provided inside the ring network cabinet, and the installation slots are provided in two, and the interiors of the two installation slots are provided with installation cabinets, the front surface of the installation cabinet is provided with a grid door, and the lower surface of the second installation slot is provided with a slide slot; a second installation slot is provided inside the installation cabinet, and the upper and lower end surfaces of the installation cabinet are provided with ventilation holes.

[0005] However, the above technologies often have the following defects: In order to pursue a smaller footprint to adapt to the current situation of tight urban space resources, many existing ring network cabinets over-compress the internal space during design, resulting in an extremely dense layout, especially in the cable room, where the internal cables are complexly intertwined and various electrical components are compactly arranged. This makes it difficult for maintenance personnel to operate in a limited space during maintenance work, and the disassembly and installation of components are difficult. In addition, some ring network cabinets have rough manufacturing processes, poor sealing material quality, or are affected by environmental factors during long-term operation, resulting in aging of sealing components, resulting in poor sealing of the wire body. When in a humid environment, external water vapor can easily invade the interior of the ring network cabinet, which will reduce the resistance of the surface of the insulating material, significantly reduce the insulation performance, and even cause short circuit faults in severe cases.

[0006] To this end, the present invention provides an environmentally friendly sealed insulated interlocking ring network cabinet. Summary of the Invention

[0007] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0008] The technical solution adopted by the present invention to solve its technical problems is: the environmentally friendly sealed insulated interlocking ring network cabinet described in the present invention includes a cabinet body, a horizontal load bracket is provided on the upper surface of the cabinet body, and the end surface of the horizontal load bracket is fixedly installed with a vertical and horizontal bracket by bolts, and a side connecting plate is fixedly installed with a side connecting plate by bolts, and curling edges are provided on both sides of the side surface of the side connecting plate. A load-bearing hanging plate is fixedly connected to the bottom of one side surface of the side connecting plate, and a sliding guide is fixedly installed on the side of the load-bearing hanging plate close to the side connecting plate. The inner arc surface of the sliding guide is slidably connected to a pull plate, and a plug-in groove is provided at the edge of one side surface of the pull plate, and an arc groove is provided on the side of the pull plate close to the plug-in groove. The pull plate is movably connected to an interlocking mechanism through a rotating shaft near the top of the arc groove, and the interlocking mechanism includes a pressing plate movably connected to the surface of one side of the pull plate, a card end is provided at the front end of the pressing plate, a bent edge is provided at the bottom front end of the pressing plate, a press plate is provided on the rear side of the pressing plate away from the card end, and the lower surface of the card end is movably connected to the side base.

[0009] An extended rivet end is provided on one side of the side base, and a side surface of the extended rivet end is placed in the gap between the card end and the bent edge. A tension spring is connected to the bottom of the side surface of the side base, and one end of the tension spring is connected to the bent edge surface.

[0010] An extended rivet end is provided on one side of the side base, and a side surface of the extended rivet end is placed in the gap between the card end and the bent edge. A tension spring is connected to the bottom of the side surface of the side base, and one end of the tension spring is connected to the bent edge surface.

[0011] The inner top wall of the hook is movably connected to a support member, a hook is provided at the front end of the support member, an axis rod is connected through the middle of one side surface of the support member, a positioning end is provided in the middle of the upper surface of the support member, and one end of the axis rod passes through one side of the support member and is sleeved with a torsion spring.

[0012] The shaft rod is close to the rocker shaft at one end of the torsion spring, and the bottom of the front side of the rocker shaft is movably connected to a cam plate through a rotating shaft. A threading hole is opened on one side of the rocker shaft and the cam plate, and a composite sealing component is connected through the inner arc surface of the threading hole.

[0013] The composite sealing assembly includes a corrosion-resistant sleeve movably sleeved on the inner arc surface of the threading hole, the inner arc surface of the corrosion-resistant sleeve is sleeved on a thick barrier sleeve, and a sealing ring is sleeved on one edge of the inner arc surface of the thick barrier sleeve.

[0014] A boss is fixedly installed on the middle of the inner arc surface of the side of the barrier sleeve away from the sealing ring, the inner arc surface of the boss is sleeved with a protective round cover, the inner arc surface of the protective round cover is fixed with a spring, and the inner arc surface of the protective round cover is penetrated by a ring network cable.

[0015] The outer arc surface of the shaft is sleeved with a disassembly mechanism;

[0016] The disassembling mechanism includes a guide cam that penetrates and is connected to the middle of the outer arc surface of the shaft rod. A slot is provided on one side of the guide cam close to the shaft rod, and the slot on one side of the guide cam is slidably connected to the shaft rod.

[0017] A protrusion is provided at the bottom of the outer arc surface of the guide cam, one side of the protrusion is movably connected to the inner arc surface of the guide cam through a rotating shaft, and a narrow slot is provided between the guide cam and the protrusion.

[0018] The inner arc surface of the narrow slot is movably sleeved with a holding element, and the holding element is connected with a pin near the narrow slot. The outer arc surface of the pin is movably clamped into the inside of the narrow slot, and a rear plate is fixedly installed at the edge of one side surface of the holding element, and the rear plate is fixedly connected between the two side bases.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. A double locking structure is formed by the engagement of the clamping end in the interlocking mechanism with the upper surface of the side base, as well as the cooperation between the bent edge and the inner wall of the hook. Compared with the traditional single locking method, the stability of the pull plate after locking is significantly improved. Even if the ring network cabinet is subjected to external vibrations and impacts during operation, the pull plate is not easily displaced. When the pull plate is pushed to the target position, the pressure plate automatically completes the engagement action under the action of the tension spring, without the operator having to perform additional complex manual operations. This design simplifies the locking process, greatly shortens the operation time during equipment installation and commissioning or daily maintenance, and improves work efficiency.

[0021] 2. By rotating the guide cam through the interlocking mechanism and the disassembly mechanism, the fixing of the clamping element on the component can be released. The clamping element gradually releases the clamping state of the relevant component. When the clamping element is completely released, the target component can be easily removed. The entire disassembly process does not require complex tools or tedious operations, which improves equipment maintenance efficiency, shortens equipment downtime for maintenance, and improves power supply reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 It is an overall three-dimensional diagram of the cabinet of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall structure of the side connecting plate connection of the present invention;

[0025] Figure 3 It is a schematic diagram of the overall structure of the pull plate in the present invention;

[0026] Figure 4 It is a schematic diagram of the planar structure of the interlocking mechanism in the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the interlocking mechanism and the pull plate connected and disassembled in the present invention;

[0028] Figure 6 It is a structural diagram of the disassembly mechanism of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the composite sealing assembly of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the cross section of the corrosion-resistant kit in the present invention.

[0031] Figure: 1. Cabinet; 11. Horizontal support; 12. Vertical and horizontal support; 2. Side connecting plate; 21. Curled edge; 3. Load-bearing hanging plate; 4. Sliding guide; 5. Pull plate; 51. Insert slot; 52. Arc slot; 6. Interlocking mechanism; 61. Press plate; 611. Clamping end; 612. Folded edge; 613. Press plate; 62. Side base; 621. Extended rivet end; 622. Tension spring; 63. Hook; 64. Support member; 641. Hook; 642 , shaft; 643, positioning end; 645, torsion spring; 65, rocker shaft; 651, threading hole; 66, cam plate; 7, composite sealing assembly; 71, corrosion-resistant kit; 72, barrier thick sleeve; 73, sealing ring; 74, boss; 75, protective round cover; 76, spring; 77, ring network cable; 8, disassembly mechanism; 81, guide cam; 82, protrusion; 83, slot; 84, holding element; 841, pin; 85, back plate. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the embodiment of the present invention includes a cabinet 1, the upper surface of the cabinet 1 is provided with a horizontal support 11, the end surface of the horizontal support 11 is fixedly installed with a vertical and horizontal support 12 by bolts, and one side surface of the vertical and horizontal support 12 is fixedly installed with a side connecting plate 2 by bolts, and both sides of the side surface of the side connecting plate 2 are provided with a curling edge 21, and the bottom of one side surface of the side connecting plate 2 is fixedly connected with a load-bearing hanging plate 3, and a sliding guide 4 is fixedly installed on the side of the load-bearing hanging plate 3 close to the side connecting plate 2, and the inner arc surface of the sliding guide 4 is slidably connected with a pull plate 5, and a plug-in connector is provided at the edge of one side surface of the pull plate 5. Slot 51, an arc-shaped slot 52 is provided on one side of the pull plate 5 near the plug-in slot 51, and the top of the pull plate 5 near the arc-shaped slot 52 is movably connected to an interlocking mechanism 6 through a rotating shaft. The interlocking mechanism 6 includes a pressing plate 61 movably connected to the surface of one side of the pull plate 5, a card end 611 is provided at the front end of the pressing plate 61, a bent edge 612 is provided at the bottom of the front end of the pressing plate 61, a pressing plate 613 is provided on the rear side of the pressing plate 61 away from the card end 611, and a side base 62 is movably connected to the lower surface of the card end 611, and an extended rivet end 621 is provided on one side of the side base 62. The surface is placed in the gap between the card end 611 and the bent edge 612, and a tension spring 622 is connected to the bottom of one side surface of the side base 62, and one end of the tension spring 622 is connected to the surface of the bent edge 612. An extended rivet end 621 is provided on one side of the side base 62, and one side surface of the extended rivet end 621 is placed in the gap between the card end 611 and the bent edge 612, and a tension spring 622 is connected to the bottom of one side surface of the side base 62, and one end of the tension spring 622 is connected to the surface of the bent edge 612. The inner top wall of the hook 63 is movably connected to a support member 64. A hook 641 is provided at the front end of the support member 64, and a shaft 642 is connected to the middle of one side surface of the support member 64. A positioning end 643 is provided at the middle of the upper surface of the support member 64. One end of the shaft 642 passes through one side of the support member 64 and is sleeved with a torsion spring 645. One end of the shaft 642 is close to the torsion spring 645 and is connected to a rocker shaft 65. The bottom of the front side of the rocker shaft 65 is movably connected to a cam plate 66 through a rotating shaft. A threading hole 651 is provided on one side of the rocker shaft 65 and the cam plate 66. The inner arc surface of the threading hole 651 is passed through and connected to a composite sealing component 7.

[0034] When the operator needs to lock the pull plate 5, first place the hand steadily on the edge of the pull plate 5 in a position convenient for applying force, keep the body posture stable, and push the pull plate 5 smoothly along the track direction of the sliding guide 4 with uniform and moderate force. During the pushing process, it is necessary to observe the moving trajectory of the pull plate 5 to ensure that it slides smoothly along the inner arc surface of the sliding guide 4 to avoid the pull plate 5 from deflecting or getting stuck due to uneven force. As the pull plate 5 gradually approaches the target position, the pre-installed pressure plate 61 shows a tendency to tilt toward the side base 62 under the continuous tension applied by the tension spring 622. When the pull plate 5 reaches the predetermined locking position, the card end 611 of the pressure plate 61 will automatically and quickly clamp down on the upper surface of the side base 62 at a precise angle due to the tension of the tension spring 622. At this time, a slight "click" sound will be produced when the card end 611 contacts the upper surface of the side base 62, and the clamping is completed.

[0035] At the same time, the bent edge 612 at the bottom front end of the pressure plate 61 will slide along the outer wall of the hook 63 of the side base 62 into its inner wall to complete the precise snapping action. At the moment when the bent edge 612 is snapped into the inner wall of the hook 63, the operator can feel the obvious change of resistance through his hands, and can observe that the bent edge 612 and the inner wall of the hook 63 fit tightly together without any obvious gap. At this point, the double locking structure is completed. After the locking is completed, the operator needs to check the locking state. On the one hand, carefully observe the fit between the card end 611 and the side base 62 with the naked eye. In an ideal state, the two should fit completely together. , and the embedding depth of the folded edge 612 and the hook 63 is ensured to reach the depth. If it is found that the fit or embedding depth is not up to standard, it is necessary to push the pull plate 5 again to lock the operation. The card end 611 is clamped with the upper surface of the side base 62, and the bending edge 612 cooperates with the inner wall of the hook 63 to form a double locking structure. Compared with the traditional single locking method, the stability of the pull plate 5 after locking is significantly improved. Even if the ring network cabinet is subjected to external vibration and impact during operation, the pull plate 5 is not easy to move, ensuring that the position of the internal components is fixed, reducing the risk of failure caused by loose components, and effectively ensuring the safe and stable operation of the power equipment.

[0036] When the pull plate 5 needs to be unlocked, the operator places his finger on the pressing plate 613 of the pressure plate 61, applies force evenly with his finger, and applies downward pressure steadily. In the process of applying pressure, avoid damaging the pressure plate 61 due to excessive force or failing to complete the unlocking due to insufficient force. After receiving the pressure applied by the finger, the pressing plate 613 will use the rotating shaft as a fulcrum to drive the pressure plate 61 as a whole to rotate upward around the rotating shaft. During the rotation of the pressure plate 61, the card end 611 will gradually lift up and separate from the upper surface of the side base 62. During this process, a gradually expanding gap can be observed between the card end 611 and the side base 62. At the same time, the bent edge 612 will also slide upward along the inner wall of the hook 63 as the pressure plate 61 rotates, and finally detach from the hook 63.

[0037] During the entire unlocking process, the operator should pay close attention to the rotation of the pressure plate 61 and the separation status of the card end 611, the bent edge 612 and the side base 62. When it is confirmed that the card end 611 is completely separated from the side base 62 and the bent edge 612 is completely out of the hook 63, the pressure plate 61 is in a fully unlocked state.

[0038] After the pressure plate 61 is fully unlocked, the operator places his hand on the edge of the pull plate 5 again and slides the pull plate 5 at a steady and slow speed. During the sliding process, if the pull plate 5 is felt to be stuck, the sliding operation must be stopped immediately and recheck whether the pressure plate 61 is fully unlocked and whether there is any stuck or damaged component. The sliding operation can be continued only after the fault is eliminated, thereby avoiding damage to the pull plate 5 or the interlocking mechanism 6 due to incomplete unlocking. When pushing the pull plate 5 to the target position, the pressure plate 61 automatically completes the locking action under the tension of the tension spring 622, and the operator does not need to perform additional complex manual operations. This design simplifies the locking process, greatly shortens the operation time during equipment installation and commissioning or daily maintenance, and improves work efficiency. It is especially suitable for scenarios where frequent component position fixing is required.

[0039] like Figure 3 、 Figure 7 and Figure 8 As shown, the composite sealing assembly 7 includes a corrosion-resistant sleeve 71 movably sleeved in the inner arc surface of the threading hole 651, the inner arc surface of the corrosion-resistant sleeve 71 is sleeved with a thick blocking sleeve 72, a sealing ring 73 is sleeved at the edge of one side of the inner arc surface of the thick blocking sleeve 72, a boss 74 is fixedly installed in the middle of the inner arc surface of the side of the thick blocking sleeve 72 away from the sealing ring 73, the inner arc surface of the boss 74 is sleeved with a protective circular cover 75, the inner arc surface of the protective circular cover 75 is fixedly installed with a spring 76, and the inner arc surface of the protective circular cover 75 is passed through by a ring network cable 77.

[0040] Starting from one end of the threading hole 651, slowly insert the corrosion-resistant kit 71. This process requires the use of a special concentric positioning tool to ensure that the corrosion-resistant kit 71 is strictly coaxial with the threading hole 651 to avoid eccentricity. If eccentricity exists, it will not only reduce the sealing effect, but may also cause stress concentration and affect the insulation performance. After completing the installation of the corrosion-resistant kit 71, insert the barrier thick sleeve 72 in the same way. After evenly applying high-temperature resistant and aging-resistant sealant on the sealing ring 73, carefully insert it on the edge of one side of the inner arc surface of the barrier thick sleeve 72. Use a special pressing tool to gradually and lightly press the sealing ring 73 from the center to the edge. , so that the sealing ring 73 and the barrier thick sleeve 72 are fully fitted, ensuring uniform distribution of the sealant, eliminating bubbles and gaps, and the corrosion-resistant kit 71 is made of special polymer anti-corrosion materials, which have a dense molecular structure and excellent chemical stability. When external corrosive gases or liquids come into contact with the surface of the corrosion-resistant kit 71, its molecular structure can effectively prevent the penetration of corrosive media, forming a solid protective barrier. For example, in salt spray environments such as coastal areas, the corrosion-resistant kit 71 can resist salt spray erosion for a long time, protect the internal insulation structure from damage, thereby extending the service life of the ring network cabinet and reducing the risk of failure due to corrosion.

[0041] The thick barrier sleeve 72 cooperates closely with the sealing ring 73 to build an efficient sealing space at the threading hole 651. The sealing ring 73 is made of materials such as silicone rubber with good elasticity, and can form a tight package around the ring network cable 77. When external moisture, dust and other impurities try to enter the ring network cabinet, the elastic deformation of the sealing ring 73 can effectively seal the gap and prevent impurities from invading. At the same time, the thick barrier sleeve 72 also has a certain sealing performance, and cooperates with the sealing ring 73 to further enhance the sealing effect, prevent the insulation performance from being reduced due to moisture, avoid short circuits and other faults caused by dust accumulation, and ensure the safe and stable operation of the ring network cabinet.

[0042] like Figure 3 、 Figure 4 and Figure 6 As shown, the outer arc surface of the shaft 642 is sleeved with a disassembly mechanism 8, and the disassembly mechanism 8 includes a guide cam 81 that is connected to the middle of the outer arc surface of the shaft 642, and a slot is provided on the side of the guide cam 81 close to the shaft 642, and the slot on one side of the guide cam 81 is slidingly connected to the shaft 642, and a protrusion 82 is provided at the bottom of the outer arc surface of the guide cam 81, and one side of the protrusion 82 is movably connected to the inner arc surface of the guide cam 81 through a rotating shaft, and a narrow slot 83 is provided between the guide cam 81 and the protrusion 82, and the inner arc surface of the narrow slot 83 is movably sleeved with a holding element 84, and a pin 841 is connected to the holding element 84 near the narrow slot 83, and the outer arc surface of the pin 841 is movably clamped to the inside of the narrow slot 83, and a rear plate 85 is fixedly installed at the edge of one side surface of the holding element 84, and the rear plate 85 is fixedly connected between the two side bases 62.

[0043] Align the slot of the guide cam 81 with the shaft 642, and slowly slide it along the outer arc surface of the shaft 642. During the installation process, ensure that the guide cam 81 can slide freely on the shaft 642, and there is no obvious gap between the slot and the shaft 642 to prevent the guide cam 81 from shaking and affecting the disassembly operation. Insert the shaft at the preset shaft hole position at the bottom of the outer arc surface of the guide cam 81, and insert the corresponding hole position of the protrusion 82 into the shaft so that the protrusion 82 can rotate flexibly around the shaft. After installation, check the rotation range of the protrusion 82 to ensure that it can be installed in the narrow slot 83. To ensure normal movement without jamming, align the pin 841 of the holding element 84 with the narrow slot 83 between the guide cam 81 and the protrusion 82, and gently push it in so that the pin 841 is engaged in the narrow slot 83. Pay attention to the installation direction of the holding element 84 during installation to ensure that it can effectively hold the relevant components. Use bolts to fix the back plate 85 between the two side bases 62 to ensure that the back plate 85 is firmly installed and can provide stable support for the holding element 84. When fixing the back plate 85, tighten the bolts symmetrically to avoid deformation of the back plate 85 due to uneven force.

[0044] When it is necessary to disassemble the relevant parts, the operator uses a special tool to rotate the guide cam 81. During the rotation of the guide cam 81, the raised portion 82 at the bottom of its outer arc surface moves in the narrow groove 83, driving the holding element 84 to move. As the guide cam 81 rotates, the holding element 84 gradually releases the holding state of the relevant parts. When the holding element 84 is completely released, the target parts can be easily disassembled. The entire disassembly process does not require complex tools or tedious operations, thereby improving equipment maintenance efficiency.

[0045] Specifically, place the cabinet 1 on a horizontal installation surface, mark the installation position of the horizontal bracket 11 on the upper surface of the cabinet 1, fix the horizontal bracket 11 to the top of the cabinet with bolts, ensure that the end surface is horizontal, align the vertical and horizontal brackets 12 with the end surface of the horizontal bracket 11, and fix them with bolts. The side connecting plate 2 fits the side of the vertical and horizontal brackets 12, and fixes them with bolts along the rolled edges 21 on both sides to ensure that the side connecting plate is perpendicular to the cabinet, mark the installation position of the load-bearing hanging plate 3 at the bottom of the side connecting plate 2, and fix the sliding guide 4 to the side of the load-bearing hanging plate 3 close to the side connecting plate 2 by welding or bolting, ensuring that the inner arc surface is smooth and free of burrs, and parallel to the sliding direction of the pull plate 5.

[0046] Insert the pull plate 5 into the inner arc surface of the sliding guide 4 to test the sliding smoothness, install the interlocking mechanism 6 at the top shaft position of the pull plate 5, and the pressure plate 61 is movably connected to the pull plate 5 through the shaft, with the clamping end 611 facing the side base 62, and the side base 62 is fixed to the cabinet or bracket. The extended rivet end 621 is clamped between the clamping end 611 and the bent edge 612 of the pressure plate 61, and one end of the tension spring 622 is connected to the bottom of the side base 62, and the other end is hooked on the bent edge 612. Adjust the tension of the tension spring to keep the pressure plate 61 in the clamping trend.

[0047] Apply sealant to the edge of the barrier sleeve 72, fit the sealing ring 73 onto the edge, press lightly from the center to the edge with a pressing tool to eliminate bubbles, install the boss 74 on the inside of the barrier sleeve 72, insert the protective round cover 75 into the boss, fix the spring 76 inside the round cover, and finally insert the ring network wire 77 to ensure that the spring 76 is tight against the outer skin of the ring network wire. Perform an air pressure test on the composite sealing assembly 7 to observe whether there is any leakage, check whether there is any gap at the contact between the sealing ring 73 and the ring network wire 77, and apply sealant if necessary.

[0048] Align the slot of the guide cam 81 with the shaft 642, slide it along the shaft, make sure there is no gap between the slot and the shaft, insert the shaft into the shaft hole at the bottom of the guide cam 81, insert the protrusion 82 into the shaft, test whether the protrusion can rotate flexibly, insert the pin 841 of the holding element 84 into the narrow slot 83 between the guide cam 81 and the protrusion 82, adjust the holding direction, and fix the back plate 85 between the two side bases 62 with bolts, make sure the back plate is perpendicular to the shaft 642, and the bolts are evenly stressed, turn the guide cam 81 with a wrench, observe the movement trajectory of the protrusion 82 in the narrow slot 83, and confirm that the holding element 84 is loosened as the guide cam rotates. Test more than 3 times to ensure that the disassembly action is smooth and without jamming.

[0049] Push the pull plate 5 along the sliding guide 4 to the desired position. The inner pressure plate 61 automatically engages the side base 62 under the action of the tension spring 622. After a "click," check the fit of the clamping end 611 against the side base and the depth of the bent edge 612 into the hook 63. Press the pressing plate 613 evenly with your fingers, controlling the force to 5-8N, to rotate the pressure plate 61 upward about the rotation axis. After observing the clamping end 611 separate from the side base 62 and the bent edge 612 disengage from the hook 63, slowly slide the pull plate 5. If it gets stuck, check that the pressure plate is fully unlocked.

[0050] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0052] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly sealed insulated interlocking ring main unit, characterized by: The cabinet comprises a cabinet body (1), wherein the upper surface of the cabinet body (1) is provided with a horizontal support (11), the end surface of the horizontal support (11) is fixedly installed with a vertical and horizontal support (12) by means of bolts, a side connecting plate (2) is fixedly installed on one side surface of the vertical and horizontal support (12) by means of bolts, both sides of the side surface of the side connecting plate (2) are provided with a curling edge (21), a side surface of the side connecting plate (2) is fixedly connected with a load-bearing hanging plate (3) at the bottom, a side of the load-bearing hanging plate (3) close to the side connecting plate (2) is fixedly installed with a sliding guide (4), the inner arc surface of the sliding guide (4) is slidably connected with a pull plate (5), and the side surface edge of the pull plate (5) is fixedly connected with the inner arc surface of the pull plate (5). A plug-in slot (51) is provided at the edge of the pull plate (5), an arc-shaped slot (52) is provided on one side of the pull plate (5) close to the plug-in slot (51), and an interlocking mechanism (6) is movably connected to the top of the pull plate (5) close to the arc-shaped slot (52) through a rotating shaft. The interlocking mechanism (6) includes a pressing plate (61) movably connected to the surface of one side of the pull plate (5), a card end (611) is provided at the front end of the pressing plate (61), a bent edge (612) is provided at the bottom of the front end of the pressing plate (61), a pressing plate (613) is provided on the rear side of the pressing plate (61) away from the card end (611), and a side base (62) is movably connected to the lower surface of the card end (611).

2. The environmentally friendly sealed insulated interlocking ring main unit according to claim 1, characterized in that: An extended rivet end (621) is provided on one side of the side base (62), and a surface of one side of the extended rivet end (621) is placed in the gap between the clamping end (611) and the bent edge (612). A tension spring (622) is connected through the bottom of the surface of one side of the side base (62), and one end of the tension spring (622) is connected through the surface of the bent edge (612).

3. The environmentally friendly sealed insulated interlocking ring main unit according to claim 2, characterized in that: A hook portion (63) is provided on one side surface of the side base (62) near the pressure plate (61), and the inner side wall of the hook portion (63) is movably engaged with the bent edge (612). There are two side bases (62) and they are distributed on both sides of the longitudinal and transverse brackets (12) in a mirror-symmetrical manner.

4. The environmentally friendly sealed insulated interlocking ring main unit according to claim 3, characterized in that: The inner top wall of the hook portion (63) is movably connected to a support member (64), a hook (641) is provided at the front end of the support member (64), a shaft (642) is passed through the middle of one side surface of the support member (64), a positioning end (643) is provided at the middle of the upper surface of the support member (64), and one end of the shaft (642) passes through one side of the support member (64) and is sleeved with a torsion spring (645).

5. The environmentally friendly sealed insulated interlocking ring main unit according to claim 4, characterized in that: The outer arc surface of the shaft (642) is sleeved with a disassembly mechanism (8), and the disassembly mechanism (8) includes a guide cam (81) that is connected to the middle of the outer arc surface of the shaft (642), and a slot is provided on one side of the guide cam (81) close to the shaft (642), and the slot on one side of the guide cam (81) is slidably connected to the shaft (642).

6. The environmentally friendly sealed insulated interlocking ring main unit according to claim 5, characterized in that: The inner arc surface of the narrow slot (83) is movably sleeved with a holding element (84), and the holding element (84) is connected to a pin (841) near the narrow slot (83). The outer arc surface of the pin (841) is movably clamped into the inside of the narrow slot (83). A rear plate (85) is fixedly installed at the edge of one side surface of the holding element (84), and the rear plate (85) is fixedly connected between the two side bases (62).

7. The environmentally friendly sealed insulated interlocking ring main unit according to claim 6, characterized in that: A protrusion (82) is provided at the bottom of the outer arc surface of the guide cam (81), one side of the protrusion (82) is movably connected to the inner arc surface of the guide cam (81) through a rotating shaft, and a narrow slot (83) is provided between the guide cam (81) and the protrusion (82).

8. The environmentally friendly sealed insulated interlocking ring main unit according to claim 5, characterized in that: The shaft (642) is close to the rocker arm shaft (65) at one end of the torsion spring (645), and the front bottom of the rocker arm shaft (65) is movably connected to a cam plate (66) via a rotating shaft. A threading hole (651) is provided on one side of the rocker arm shaft (65) and the cam plate (66), and a composite sealing component (7) is connected to the inner arc surface of the threading hole (651).

9. The environmentally friendly sealed insulated interlocking ring main unit according to claim 8, characterized in that: The composite sealing assembly (7) comprises a corrosion-resistant sleeve (71) movably sleeved on the inner arc surface of the threading hole (651); the inner arc surface of the corrosion-resistant sleeve (71) is sleeved on a thick barrier sleeve (72); and a sealing ring (73) is sleeved on one edge of the inner arc surface of the thick barrier sleeve (72).

10. The environmentally friendly sealed insulated interlocking ring main unit according to claim 9, characterized in that: A boss (74) is fixedly installed on the middle of the inner arc surface of one side of the barrier thick sleeve (72) away from the sealing ring (73), the inner arc surface of the boss (74) is sleeved with a protective round cover (75), the inner arc surface of the protective round cover (75) is fixedly installed with a spring (76), and the inner arc surface of the protective round cover (75) is penetrated and connected with a ring network cable (77).

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