A box-type fixed metal-enclosed ring network switch equipment

Abstract

The present invention discloses a box-type fixed metal-enclosed ring network switchgear, which relates to the technical field of power equipment, and aims to solve the technical problem that the current switchgear lacks the ability to control the spread of fire, and can only extinguish the fire on a large scale after the fire spreads, which increases the difficulty of fire extinguishing, including the main body of the equipment. The present invention is provided with an emergency winding assembly, a cable installation assembly and a wire pulling assembly, so that the cable installation component on fire and the cable at the fire site can enter the fireproof box together, and the fire is controlled in the fireproof box, and the dry powder fire extinguishing structure on the fireproof box is used to extinguish the fire in a small area with strong effect, thereby forming a complete and coordinated system design. The present invention can control the fire to a small space and extinguish the fire in a small space with strong effect, which effectively solves the problem that the fire is easy to spread, resulting in a large range that is difficult to extinguish.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and more specifically to a box-type fixed metal-enclosed ring network switchgear. Background Art

[0002] Box-type fixed metal-enclosed ring network switchgear is widely used. In urban power grids, it is installed in large quantities in substations, switchgears, etc. It is a key device for receiving and distributing electric energy in urban distribution networks, ensuring reliable power supply for various users in the city. In industrial and mining enterprises, it can be found in the internal power distribution systems of factories, mines, metallurgical enterprises, etc., meeting the power demand of different production equipment and maintaining the normal production process. In residential areas, as the core equipment of the community distribution room, it distributes high-voltage electric energy to various residential buildings or power consumption areas, and escorts the residents' daily electricity consumption. Its small size, safety, reliability, maintenance-free and other characteristics make it particularly suitable for installation and use in the community. In public facilities such as high-rise buildings, schools, hospitals, shopping malls, parks, etc., it also plays an important role in the distribution and control of electricity to ensure the normal operation of important equipment such as elevators, air conditioners, and lighting.

[0003] However, in the existing switchgear, in order to prevent and control fires in the equipment, fire-fighting equipment is installed near the equipment, but it lacks the ability to quickly control the spread of the fire in the first place. In addition, because the connection between the external cable and the external cable is more prone to short circuit and fire, it is more necessary to quickly and effectively control the situation of this part when the fire breaks out. Without equipment to control the spread of the fire, the fire is easy to spread in the open space. This leads to the inability to accurately and efficiently extinguish the fire source in time at the early stage of the fire. The fire can only be extinguished on a large scale through fire-fighting equipment, which increases the difficulty of fire extinguishing. In view of this, we propose a box-type fixed metal enclosed ring network switchgear. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, meet actual needs, and provide a box-type fixed metal-enclosed ring network switchgear to solve the technical problem that the current switchgear lacks the ability to control the spread of fire and can only extinguish the fire on a large scale after it spreads, which increases the difficulty of fire extinguishing.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a box-type fixed metal-enclosed ring network switch device, comprising a device body, an emergency reeling assembly arranged in the device body, three cable installation assemblies arranged on the emergency reeling assembly, a fire extinguishing assembly arranged at the end of the emergency reeling assembly, three wire pulling assemblies arranged in the device body, three locking assemblies detachably connected to the cable installation assembly, and two cutting and sealing assemblies arranged at both ends of the fire extinguishing assembly;

[0006] A fire sensor is provided in the main body of the device, and the emergency winding assembly includes a sliding track, a slider, and a winding rope;

[0007] The sliding track is fixed on the cabinet of the main body of the equipment. The sliding track consists of a main track and three sub-tracks connected to the main track. The middle sub-track is a straight track, and the sub-tracks on both sides are arc-shaped tracks set in a mirror image. One end of the winding cable is connected to the slider, and the other end of the winding cable is fixed on the cabinet of the main body of the equipment. The three sliders are slidably connected in the three sub-tracks of the sliding track. A cableway is provided on the inner side of the sliding track, and the three winding cables are respectively arranged in the three forks of the cableway;

[0008] The cable mounting assembly includes a mounting plate and an iris fixing structure;

[0009] The iris fixing structure is mounted on the front end of the mounting plate, and the mounting plate is mounted on the slider;

[0010] The fire extinguishing assembly includes a fireproof box, a first cylinder, a lifting box door and a dry powder fire extinguishing structure;

[0011] The dry powder fire extinguishing structure is installed at the front end of the fireproof box, the lifting box door is installed at the output end of the first cylinder, and the lifting box door is slidably connected to the front end of the fireproof box, the two first cylinders are installed at the front end of the fireproof box, the end of the main track is located in the fireproof box, and the fireproof box is fixed on the cabinet of the equipment body.

[0012] Preferably, the emergency winding assembly further comprises a slider guide structure, wherein the slider guide structure comprises a receiving channel, a guide plate, a spring block groove, a first spring, a spring block, and a torsion reset shaft;

[0013] The spring block is connected to the spring block groove through the first spring, and the spring block is slidably connected to the spring block groove. The spring block groove is arranged on one side of the guide plate. The other end of the guide plate is rotatably connected to the lower part of the accommodating groove through the torsion reset shaft. The accommodating groove is arranged at the connection between the main track and the three sub-tracks. The two guide plates are arranged in a mirror image, and the two guide plates are respectively located at the connection between the two arc-shaped sub-tracks and the accommodating groove.

[0014] Preferably, the slider guide structure further includes a buckle groove;

[0015] The buckle groove is arranged on a side of the guide plate away from the nearest arc-shaped sub-track, and the buckle groove is adapted to a spring block on another guide plate.

[0016] Preferably, the wire pulling assembly comprises a second cylinder, a mounting block, a connecting rod, a driving column, a guide frame, a roller, a guide block, and a guide rod;

[0017] Several guide rods are equidistantly fixed on the cabinet of the equipment body, the guide blocks are slidably connected to the guide rods, and several guide blocks are respectively installed on several driving columns. Several rollers are rotatably connected in several guide frames, and the winding rope is arranged between the roller and the guide frame. The guide frame is installed on the driving column, and several driving columns are staggered and equidistantly arranged at the other end of the winding rope. The connecting rod is rotatably connected to the driving column, and the other ends of several connecting rods are rotatably connected to the mounting block. The mounting block is installed at the output end of the second cylinder, and the second cylinder is fixed on the cabinet of the equipment body.

[0018] Preferably, the wire pulling assembly further comprises a limiting wheel, which is rotatably connected to a cabinet of the device body, and the limiting wheel is located above the bending parts of the winding cables on both sides.

[0019] Preferably, the locking assembly comprises a locking plate, a connecting plate, and a second spring;

[0020] The two second springs are respectively installed on both sides of the top end of the connecting plate, one end of the two locking plates are rotatably connected to the groove of the connecting plate, the outer side of the locking plate is connected to the other end of the second spring, the two locking plates form an annular locking piece with an opening, a locking rod is installed at the bottom end of the slider, the lower and upper parts of the locking rod are set as cylinders of different diameters, the cylinder at the lower part of the locking rod is adapted to the annular locking piece, and the cylinder at the upper part of the locking rod is adapted to the opening of the annular locking piece.

[0021] Preferably, the locking assembly further comprises a top block, a push block, and a third cylinder;

[0022] The third cylinder is fixed on the cabinet of the equipment body, the push block is installed at the output end of the third cylinder, the top block is attached to the front end of the push block, the connecting plate is installed on the top block, and the side of the top block attached to the push block is set as an inclined surface, and the inclined surface is inclined along the positive direction of the Y axis and the negative direction of the Z axis.

[0023] Preferably, the locking assembly further comprises a limiting guide groove, a limiting guide rod, and a third spring;

[0024] The limiting guide rod is slidably connected in the limiting guide groove, and the limiting guide rod is connected to the limiting guide groove through a third spring, and the limiting guide groove is arranged at the front end of the top block.

[0025] Preferably, the cutting and closing assembly comprises a frame, a fourth cylinder, a knife groove, a shearing knife, a connecting rod, a limit block, a closing frame, a self-locking slider, and a slide groove;

[0026] The slide groove is arranged on one side of the frame, the self-locking slider is slidably connected in the slide groove, the closed frame is installed on the self-locking slider, the limit block is installed at one end of the connecting rod, and the limit block is located on the outside of the closed frame, the connecting rod is slidably connected to the closed frame, the shearing knife is installed at the other end of the connecting rod, and the shearing knife is located on the inner side of the closed frame, the knife groove is arranged at the inner bottom end of the frame, and the knife groove is adapted to the shearing knife, the fourth cylinder is installed at the inner top end of the frame, the output end of the fourth cylinder is slidably connected to the closed frame, and the output end of the fourth cylinder is installed on the shearing knife, the closed frame and the frame form a closed shell, the two closed shells are respectively attached to the fireproof box and the lifting box door, and the fireproof box, the lifting box door and the closed shell are all made of heat-insulating and fireproof materials.

[0027] Preferably, a track splitting part is provided on the main track, and the track splitting part is located at the front end of the fireproof box. The bottom end of the track splitting part is connected to the sixth cylinder, and the sixth cylinder is fixed on the cabinet of the equipment body. The front end of the fireproof box is installed with a fifth cylinder, and the output end of the fifth cylinder is connected to one side of the closed frame in the same plane.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The present invention, by providing an emergency reeling assembly, a cable installation assembly and a wire pulling assembly, can allow the cable installation assembly on fire to enter the fireproof box together with the cables at the fire site, and control the fire within the fireproof box, and use the dry powder fire extinguishing structure on the fireproof box to extinguish the fire in a small area with strong effect, thus forming a complete and coordinated system design. The present invention can control the fire to a small space and extinguish the fire in a small space with strong effect, effectively solving the problem that the fire is easy to spread, resulting in a large area that is difficult to extinguish.

[0030] 2. The present invention provides a receiving groove at the connection between the arc sub-track, the straight sub-track and the main track, and provides a guide plate with a guiding function in the receiving groove. The guide plate forms a guiding surface with the receiving groove through the cooperation of the spring block and the buckle groove, which effectively solves the guidance and stability problems of the slider during the track conversion process. The present invention can ensure the smooth cable winding action in complex emergency situations by providing a guiding structure, and reduce the probability of the slider getting stuck in the track.

[0031] 3. The present invention uses the working of the wire pulling assembly. When the emergency winding assembly needs to be wound up, the mounting block drives the connecting rod and the driving column to drive the guide frames on both sides to move synchronously. The guide frames cooperate with the rollers to quickly pull and fold the winding rope. Compared with the traditional winding mechanism, the efficiency of the wire pulling process is greatly improved. The present invention improves the efficiency of pulling the winding rope through the structure of the wire pulling assembly, thereby increasing the protection efficiency of the equipment for the cable in the event of a fire emergency.

[0032] 4. The present invention provides locking rods of different thicknesses and an annular locking piece that matches the locking rod. When disassembling, only the lateral position of the annular locking piece needs to be adjusted to detach from the thinner end of the locking rod. The separation efficiency is extremely high. When normally connected, the positions of the locking rod and the annular locking piece are not easily changed by external forces, thus achieving reliable fixation of the cable when the equipment is operating normally. The present invention provides the locking rod and the annular locking piece, which can achieve the function of quickly unlocking and evacuating the cable in the event of a fire.

[0033] 5. The present invention sets a shear knife to cut off the cable after power failure, preventing the flame from spreading outward through the cable. When the shear knife moves to the end, the fourth cylinder continues to drive the closing frame to move through the limit block and the connecting rod. The closed shell formed by the closing frame forms a sealed structure with the frame body to ensure that the fire is limited to the smallest range. The present invention effectively prevents the spread of flames by cutting off the outward cables and establishing a sealed fire barrier, thereby improving the overall safety and stability of the equipment in the event of a fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure 2 It is a structural schematic diagram of the internal structure of the main body of the device of the present invention;

[0036] Figure 3 It is a structural schematic diagram of the emergency winding assembly and the cable installation assembly of the present invention;

[0037] Figure 4 For the present invention Figure 3 The enlarged view of point A in the middle;

[0038] Figure 5 It is a schematic cross-sectional structural diagram of the guide plate of the present invention;

[0039] Figure 6 It is a structural schematic diagram of the fire extinguishing assembly and its connecting parts of the present invention;

[0040] Figure 7 It is a structural schematic diagram of the wire pulling assembly of the present invention from the front view;

[0041] Figure 8 It is a structural schematic diagram of the rear view of the wire pulling assembly of the present invention;

[0042] Fig. 9 It is a structural schematic diagram of the locking assembly of the present invention;

[0043] Fig.10 It is a schematic cross-sectional structural diagram of the top block of the present invention;

[0044] Fig.11It is a schematic diagram of the structure of the cutting and sealing assembly of the present invention;

[0045] Fig.12 It is a schematic cross-sectional view of the cut-off sealing component of the present invention.

[0046] Description of the numbers in the figure:

[0047] 1. Equipment body; 2. Emergency reeling assembly; 3. Cable installation assembly; 4. Fire extinguishing assembly; 5. Wire pulling assembly; 6. Locking assembly; 7. Cutting and closing assembly; 8. Fifth cylinder;

[0048] 201, sliding track; 202, slider; 203, reeling rope; 204, slider guide structure; 205, locking rod;

[0049] 2011, cableway; 2012, track splitting section; 2013, sixth cylinder;

[0050] 2041, accommodating groove; 2042, guide plate; 2043, spring block groove; 2044, first spring; 2045, spring block; 2046, buckle groove; 2047, torsion reset shaft;

[0051] 301, mounting plate; 302, iris fixing structure;

[0052] 401, fireproof box; 402, first cylinder; 403, lifting box door; 404, dry powder fire extinguishing structure;

[0053] 501, second cylinder; 502, mounting block; 503, connecting rod; 504, driving column; 505, guide frame; 506, roller; 507, guide block; 508, guide rod; 509, limit wheel;

[0054] 601, locking plate; 602, connecting plate; 603, second spring; 604, top block; 605, push block; 606, third cylinder; 607, limit guide groove; 608, limit guide rod; 609, third spring;

[0055] 701, frame; 702, fourth cylinder; 703, knife groove; 704, shear knife; 705, connecting rod; 706, limit block; 707, closing frame; 708, self-locking slider; 709, slide groove. DETAILED DESCRIPTION

[0056] Embodiment 1, as Figures 1 to 6As shown, the present invention relates to a box-type fixed metal-enclosed ring network switch device, including an equipment body 1, an emergency winding assembly 2 arranged in the equipment body 1, three cable installation assemblies 3 arranged on the emergency winding assembly 2, a fire extinguishing assembly 4 arranged at the end of the emergency winding assembly 2, three wire pulling assemblies 5 arranged in the equipment body 1, three locking assemblies 6 detachably connected to the cable installation assembly 3, and two cutting and closing assemblies 7 arranged at both ends of the fire extinguishing assembly 4.

[0057] Among them, a fire sensor is provided in the equipment body 1, and the emergency winding component 2 includes a sliding track 201, a slider 202, and a winding rope 203; the sliding track 201 is fixed on the cabinet of the equipment body 1, and the sliding track 201 consists of a main track and three sub-tracks connected to the main track. The middle sub-track is a straight track, and the sub-tracks on both sides are arc tracks set in a mirror image. One end of the winding rope 203 is connected to the slider 202, and the other end of the winding rope 203 is fixed on the cabinet of the equipment body 1. The three sliders 202 are slidably connected in the three sub-tracks of the sliding track 201, and a cableway 2011 is provided on the inner side of the sliding track 201, and the three winding ropes 203 are respectively arranged in the three forks of the cableway 2011.

[0058] The cable installation assembly 3 includes a mounting plate 301 and an iris fixing structure 302 ; the iris fixing structure 302 is installed at the front end of the mounting plate 301 , and the mounting plate 301 is installed on the slider 202 .

[0059] The fire extinguishing assembly 4 includes a fireproof box 401, a first cylinder 402, a lifting box door 403 and a dry powder fire extinguishing structure 404; the dry powder fire extinguishing structure 404 is installed at the front end of the fireproof box 401, the lifting box door 403 is installed at the output end of the first cylinder 402, and the lifting box door 403 is slidably connected to the front end of the fireproof box 401, the two first cylinders 402 are both installed at the front end of the fireproof box 401, the end of the main track is located in the fireproof box 401, and the fireproof box 401 is fixed on the cabinet of the equipment body 1.

[0060] Working method: When the box-type fixed metal enclosed ring network switch equipment is operating normally, the cables are fixed and arranged through the cable installation assembly 3, the installation plate 301 provides a supporting foundation for the cables, and the iris fixing structure 302 clamps the cables. Once the fire sensor detects a fire at any cable installation assembly 3 in the equipment body 1, the locking assembly 6 starts to disconnect the connection with the cable installation assembly 3, and then the wire pulling assembly 5 starts to drive the emergency winding assembly 2 to work. Since the slider 202 is slidably connected to the sub-track of the sliding track 201, and one end of the winding rope 203 is connected to the slider 202 and the other end is fixed to the cabinet, the winding rope 203 will start to wind up in the corresponding cableway 2011, and the slider 202 on the middle straight sub-track and the slider 202 on the arc sub-tracks on both sides will move along. The track slides, driving the cable installation component 3 to move toward the fireproof box 401. At the same time, the fire extinguishing component 4 is also started synchronously, and the first cylinder 402 starts to work, pushing the lifting box door 403 to slide upward along the front end of the fireproof box 401 to open, so that the cable installation component 3 can enter the fireproof box 401. After entering, the lifting box door 403 is closed, and then the dry powder fire extinguishing structure 404 quickly sprays dry powder fire extinguishing agent into the fireproof box 401. The dry powder fire extinguishing agent can quickly cover the fire area, suppress the spread of fire, and extinguish the flames; when a fire occurs and the situation is more serious, the cutting and sealing component 7 will be activated according to preset conditions such as temperature, smoke concentration and other parameters when reaching the threshold, effectively isolating the fire area from other parts to prevent the fire from spreading further, and at the same time cutting off the possible fire source transmission path.

[0061] The present invention, by providing an emergency reeling assembly 2, a cable installation assembly 3 and a wire pulling assembly 5, can allow the cable installation component on fire to enter the fireproof box 401 together with the cables at the fire site, and control the fire within the fireproof box 401, and use the dry powder fire extinguishing structure 404 on the fireproof box 401 to effectively extinguish the fire in a small area, thereby forming a complete and coordinated system design. The present invention can control the fire within a small space and effectively extinguish the fire in a small space, effectively solving the problem that the fire is easy to spread, resulting in a large area that is difficult to extinguish.

[0062] Specifically, Figure 4As shown, the emergency winding assembly 2 involved in the present invention also includes a slider guide structure 204, which includes a receiving groove 2041, a guide plate 2042, a spring block groove 2043, a first spring 2044, a spring block 2045, and a torsion reset shaft 2047; the spring block 2045 is connected to the spring block groove 2043 through the first spring 2044, and the spring block 2045 is slidingly connected to the spring block groove 2043, the spring block groove 2043 is arranged on one side of the guide plate 2042, and the other end of the guide plate 2042 is rotatably connected to the lower part of the receiving groove 2041 through the torsion reset shaft 2047, the receiving groove 2041 is arranged at the connection between the main track and the three sub-tracks, the two guide plates 2042 are mirror-set, and the two guide plates 2042 are respectively located at the connection between the two arc-shaped sub-tracks and the receiving groove 2041.

[0063] The slider guide structure 204 further includes a snap groove 2046 ; the snap groove 2046 is disposed on a side of the guide plate 2042 away from the nearest arc-shaped sub-track, and the snap groove 2046 is adapted to the spring block 2045 on the other guide plate 2042 .

[0064] Working method: When a fire occurs and the emergency winding assembly 2 is activated, the slider 202 begins to slide on the sliding track 201. During the transition of the slider 202 from the arc-shaped sub-track to the main track, first, because one end of the guide plate 2042 is rotatably connected to the lower part of the accommodating groove 2041, and the two guide plates 2042 are mirror-imaged at the connection between the two arc-shaped sub-tracks and the accommodating groove 2041, when the slider 202 approaches the accommodating groove 2041, it will first contact the guide plate 2042. At this time, the guide plate 2042, under the squeezing of the slider 202, will rotate to a certain extent with its connection point with the accommodating groove 2041 as the axis, thereby providing preliminary guidance and relief for the slider 202. The impact effect ensures that the slider 202 can smoothly transition from the arc-shaped sub-track to the main track. At the same time, the spring block 2045 is connected to the spring block groove 2043 through the first spring 2044 and is slidably connected to the spring block groove 2043. When the guide plate 2042 rotates, the spring block 2045 and the buckle groove 2046 on the other guide plate 2042 are adapted and engaged with each other. When the slider 202 in the straight sub-track moves to the accommodating groove 2041, the slider 202 pushes the spring block 2045. Under the elastic force of the first spring 2044, the spring block 2045 will slide relative to the spring block groove 2043, so that it will sink into the spring block groove 2043, so that the slider 202 can pass normally.

[0065] The present invention provides a receiving groove 2041 at the connection between the arc sub-track, the straight sub-track and the main track, and provides a guide plate 2042 with a guiding function in the receiving groove 2041. The guide plate 2042 forms a guiding surface with the receiving groove 2041 through the cooperation of the spring block 2045 and the buckle groove 2046, which effectively solves the guidance and stability problems of the slider 202 during the track conversion process. The present invention can ensure the smooth cable winding action in complex emergency situations by providing a guiding structure, and reduce the probability of the slider 202 getting stuck in the track.

[0066] It is worth noting that if Figures 7 and 8 As shown, the wire pulling assembly 5 of the present invention includes a second cylinder 501, a mounting block 502, a connecting rod 503, a driving column 504, a guide frame 505, a roller 506, a guide block 507, and a guide rod 508; a plurality of guide rods 508 are equidistantly fixed on the cabinet of the device body 1, the guide block 507 is slidably connected to the guide rod 508, a plurality of guide blocks 507 are respectively mounted on a plurality of driving columns 504, and a plurality of rollers 506 are respectively rotatably connected to a plurality of guide frames 505, and the winding rope 203 is arranged between the roller 506 and the guide frame 505, the guide frame 505 is installed on the driving column 504, and a plurality of driving columns 504 are staggered and equidistantly arranged at the other end of the winding rope 203, the connecting rod 503 is rotatably connected to the driving column 504, and the other ends of the plurality of connecting rods 503 are rotatably connected to the mounting block 502, and the mounting block 502 is installed at the output end of the second cylinder 501, and the second cylinder 501 is fixed on the cabinet of the equipment body 1.

[0067] The wire pulling assembly 5 further includes a limiting wheel 509 , which is rotatably connected to the cabinet of the device body 1 , and the limiting wheel 509 is located above the bending portion of the winding rope 203 on both sides.

[0068] Working method: When the box-type fixed metal enclosed ring network switch equipment encounters a fire, the emergency winding component 2 is started and the wire pulling component 5 also starts to work in coordination. First, the second cylinder 501 is started after receiving the fire sensing signal, and its output end pulls the mounting block 502 to move backward. Since one end of the connecting rod 503 is rotatably connected to the mounting block 502, and the other end is rotatably connected to each driving column 504, the forward movement of the mounting block 502 will drive the connecting rod 503 to move, thereby causing the driving column 504 to produce a corresponding displacement. In addition, because the guide block 507 is slidably connected to the guide rod 508, and the guide block 507 is installed on the driving column 504. This ensures that the driving column 504 can stably run along the predetermined straight line direction during the movement, so that the guide frame 505 installed on the driving column 504 also moves accordingly, and the roller 506 rotates in the guide frame 505, and the winding cable 203 is located between the roller 506 and the guide frame 505, so that the winding cable 203 can slide smoothly between the roller 506 and the guide frame 505 during the pulling process, ensuring that the winding cable 203 can be pulled, thereby retracting the cable, and the limiting wheels 509 located above the bending parts of the winding cables 203 on both sides limit the position of the winding cables 203 to prevent them from deviating from the predetermined track due to excessive tension or other factors.

[0069] The present invention, through the work of the wire pulling assembly 5, when the emergency winding assembly 2 needs to be wound up, drives the connecting rod 503 and the driving column 504 to drive the guide frames 505 on both sides to move synchronously through the installation block 502, and the guide frames 505 cooperate with the rollers 506 to quickly pull and fold the winding rope 203, which greatly improves the efficiency of the wire pulling process compared to the traditional winding mechanism. The present invention improves the efficiency of pulling the winding rope 203 through the structure of the wire pulling assembly 5, thereby increasing the protection efficiency of the equipment for the cable in the event of a fire emergency.

[0070] Further, such as Figures 9 and 10 As shown, the locking assembly 6 involved in the present invention includes a locking plate 601, a connecting plate 602, and a second spring 603; the two second springs 603 are respectively installed on both sides of the top of the connecting plate 602, one end of the two locking plates 601 are rotatably connected to the groove of the connecting plate 602, the outer side of the locking plate 601 is connected to the other end of the second spring 603, the two locking plates 601 form an annular locking member with an opening, a locking rod 205 is installed at the bottom end of the slider 202, the lower and upper parts of the locking rod 205 are set as cylinders of different diameters, the cylinder at the lower part of the locking rod 205 is adapted to the annular locking member, and the cylinder at the upper part of the locking rod 205 is adapted to the opening of the annular locking member.

[0071] The locking assembly 6 also includes a top block 604, a push block 605, and a third cylinder 606; the third cylinder 606 is fixed on the cabinet of the equipment body 1, the push block 605 is installed at the output end of the third cylinder 606, the top block 604 is attached to the front end of the push block 605, the connecting plate 602 is installed on the top block 604, and the side of the top block 604 that is attached to the push block 605 is set as an inclined surface, and the inclined surface is inclined along the positive direction of the Y axis and the negative direction of the Z axis.

[0072] The locking assembly 6 also includes a limiting guide groove 607, a limiting guide rod 608, and a third spring 609; the limiting guide rod 608 is slidably connected in the limiting guide groove 607, and the limiting guide rod 608 is connected to the limiting guide groove 607 through the third spring 609, and the limiting guide groove 607 is arranged at the front end of the top block 604.

[0073] Working method: Before the box-type fixed metal-enclosed ring network switch equipment operates normally, the cable needs to be installed and fixed first. At this time, the locking assembly 6 is in the initial state. After the cable is installed to the cable installation assembly 3, the locking rod 205 of the cable installation assembly 3 pushes the locking plate 601, and the second springs 603 on both sides of the locking plate 601 shrink. The locking plate 601 rotates and opens on the connecting plate 602, so that the locking rod 205 enters the inner side of the locking plate 601. The second spring 603 pushes the locking plate 601 to reset to form an annular locking member to clamp the locking rod 205, limiting the position of the cable installation assembly 3. When the box-type fixed metal-enclosed ring network switch equipment encounters a fire, the third cylinder 606 is started, and the output end of the third cylinder 606 pushes the push block 605 to move forward. Since the top block 604 is attached to the front end of the push block 605, and the side of the top block 604 and the push block 605 that are attached is set to an inclined surface, the inclined surface is along the positive direction of the Y axis and the Z axis. When the shaft is negatively tilted, the forward movement of the push block 605 will cause the top block 604 to move forward under the action of the inclined surface, and it is slidably connected to the limiting guide groove 607 through the limiting guide rod 608, and is connected to the limiting guide groove 607 through the third spring 609. When the top block 604 moves forward and backward, the third spring 609 contracts, and the limiting guide rod 608 slides in the limiting guide groove 607 to limit the moving direction of the top block 604. The top block 604 drives the connecting plate 602 to move in a straight line. In the process of the connecting plate 602 moving forward, the annular locking piece will move forward along the locking rod 205, from the thicker lower part of the locking rod 205 to the thinner upper part of the locking rod 205, and the opening of the annular locking piece matches the upper part of the locking rod 205, so that the annular locking piece is separated from the locking rod 205, thereby enabling the cable installation assembly 3 to move.

[0074] The present invention provides locking rods 205 of different thicknesses and an annular locking member matching the locking rod 205. When disassembling, only the lateral position of the annular locking member needs to be adjusted to separate from the thinner end of the locking rod 205. The separation efficiency is extremely high. When normally connected, the positions of the locking rod 205 and the annular locking member are not easily changed by external forces, thereby achieving reliable fixation of the cable when the device is operating normally. The present invention provides the locking rod 205 and the annular locking member, which can achieve the function of quickly unlocking and evacuating the cable in the event of a fire.

[0075] Furthermore, if Figure 11 to Figure 12 As shown, the cutting and closing assembly 7 of the present invention comprises a frame 701, a fourth cylinder 702, a knife groove 703, a shearing knife 704, a connecting rod 705, a stopper 706, a closing frame 707, a self-locking slider 708, and a slide groove 709; the slide groove 709 is arranged on one side of the frame 701, the self-locking slider 708 is slidably connected in the slide groove 709, the closing frame 707 is mounted on the self-locking slider 708, the stopper 706 is mounted on one end of the connecting rod 705, and the stopper 706 is located on the outside of the closing frame 707, the connecting rod 705 is slidably connected to the closing frame 707, and the shearing knife 704 is mounted on the connecting rod 705. The other end of the rod 705 and the shearing knife 704 are located on the inner side of the closed frame 707, the knife groove 703 is arranged at the inner bottom end of the frame 701, and the knife groove 703 is adapted to the shearing knife 704, the fourth cylinder 702 is installed at the inner top end of the frame 701, the output end of the fourth cylinder 702 is slidably connected to the closed frame 707, and the output end of the fourth cylinder 702 is installed on the shearing knife 704, the closed frame 707 and the frame 701 form a closed shell, the two closed shells are respectively attached to the fireproof box 401 and the lifting box door 403, the fireproof box 401, the lifting box door 403 and the closed shell are all made of heat-insulating and fireproof materials.

[0076] A track splitting part 2012 is provided on the main track, and the track splitting part 2012 is located at the front end of the fireproof box 401. The bottom end of the track splitting part 2012 is connected to the sixth cylinder 2013, and the sixth cylinder 2013 is fixed on the cabinet of the equipment body 1. The front end of the fireproof box 401 is installed with a fifth cylinder 8, and the output end of the fifth cylinder 8 is connected to one side of the closed frame 707 in the same plane.

[0077] Working method: When the box-type fixed metal enclosed ring network switch equipment encounters a fire, and the fire spreads from the fireproof box 401 to the outside, the sixth cylinder 2013 works, driving the track splitting part 2012 to move downward, and drives the cutting and closing component 7 at the front end of the fireproof box 401 to move into place through the fifth cylinder 8, and the cutting and closing component 7 starts to start. First, the fourth cylinder 702 starts to work after receiving the fire signal, and its output end pushes the shear knife 704 to move rapidly downward along the direction of the connecting rod 705. Since the knife groove 703 is provided at the inner bottom end of the frame 701 and is adapted to the shear knife 704, the shear knife 704 can accurately cut into the knife groove 703, thereby quickly cutting off the cables or other components that may support combustion located therebetween. Cut off the path for the fire to spread to other areas through cables and the like. While the shear knife 704 is in action, the connecting rod 705 drives the limit block 706 to move. The limit block 706 moves to the closed frame 707 and pushes the closed frame 707 to move. Since the closed frame 707 is installed on the self-locking slider 708, and the self-locking slider 708 is slidably connected in the slide groove 709 on one side of the frame 701, the closed frame 707 can slide along the slide groove 709. When the closed frame 707 moves to the predetermined position, the closed shell formed by it and the frame 701 can fit tightly on the fireproof box 401 and the lifting box door 403, forming a complete and sealed heat-insulating fireproof barrier to prevent the spread of flames, high temperatures and smoke to the surrounding environment.

[0078] The present invention sets a shear knife 704 to cut off the cable after power failure, preventing the flame from spreading outward through the cable, and when the shear knife 704 moves to the end, the fourth cylinder 702 continues to drive the closing frame 707 to move through the limit block 706 and the connecting rod 705, and the closed shell formed by the closing frame 707 forms a sealing structure with the frame body 701 to ensure that the fire is limited to the smallest range. The present invention effectively prevents the spread of flames by cutting off the outward cables and establishing a sealed fire barrier, thereby improving the overall safety and stability of the equipment in the event of a fire.

[0079] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A box-type fixed metal-enclosed ring network switchgear, characterized in that: The device comprises a device body (1), an emergency reeling assembly (2) arranged in the device body (1), three cable installation assemblies (3) arranged on the emergency reeling assembly (2), a fire extinguishing assembly (4) arranged at the end of the emergency reeling assembly (2), three wire pulling assemblies (5) arranged in the device body (1), three locking assemblies (6) detachably connected to the cable installation assembly (3) for limiting the position of the cable installation assembly (3), and two cutting and sealing assemblies (7) arranged at both ends of the fire extinguishing assembly (4) for cutting the cables therebetween and cutting off the path for the fire to spread to other areas through the cables; A fire sensor is provided in the device body (1), and the emergency winding assembly (2) comprises a sliding track (201), a sliding block (202), and a winding rope (203); The sliding track (201) is fixed on the cabinet of the device body (1), and the sliding track (201) is composed of a main track and three sub-tracks connected to the main track, the middle sub-track is a straight track, and the sub-tracks on both sides are arc-shaped tracks arranged in a mirror image, one end of the winding rope (203) is connected to the slider (202), and the other end of the winding rope (203) is fixed on the cabinet of the device body (1), the three sliders (202) are slidably connected in the three sub-tracks of the sliding track (201), a cableway (2011) is arranged on the inner side of the sliding track (201), and the three winding ropes (203) are respectively arranged in three forks of the cableway (2011); The cable installation assembly (3) comprises a mounting plate (301) and an iris fixing structure (302); The iris fixing structure (302) is mounted on the front end of the mounting plate (301), and the mounting plate (301) is mounted on the slider (202); The fire extinguishing assembly (4) comprises a fireproof box (401), a first cylinder (402), a lifting box door (403) and a dry powder fire extinguishing structure (404); The dry powder fire extinguishing structure (404) is installed at the front end of the fireproof box (401), the lifting box door (403) is installed at the output end of the first cylinder (402), and the lifting box door (403) is slidably connected to the front end of the fireproof box (401), the two first cylinders (402) are installed at the front end of the fireproof box (401), the end of the main track is located in the fireproof box (401), and the fireproof box (401) is fixed on the cabinet of the equipment body (1); The wire pulling assembly (5) comprises a second cylinder (501), a mounting block (502), a connecting rod (503), a driving column (504), a guide frame (505), a roller (506), a guide block (507), and a guide rod (508); A plurality of guide rods (508) are equidistantly fixed on a cabinet of the device body (1); the guide blocks (507) are slidably connected to the guide rods (508); the guide blocks (507) are respectively mounted on a plurality of driving columns (504); the rollers (506) are respectively rotatably connected to a plurality of guide frames (505); the winding rope (203) is arranged between the rollers (506) and the guide frames (505); the guide frames (505) are mounted on the driving columns (504); the driving columns (504) are staggered and equidistantly arranged at the other end of the winding rope (203); the connecting rods (503) are rotatably connected to the driving columns (504); the other ends of the connecting rods (503) are all rotatably connected to the mounting blocks (502); the mounting blocks (502) are mounted on the output end of the second cylinder (501); and the second cylinder (501) is fixed on the cabinet of the device body (1).

2. A box-type fixed metal-enclosed ring network switchgear according to claim 1, characterized in that: The emergency winding assembly (2) further comprises a slider guide structure (204), wherein the slider guide structure (204) comprises a receiving groove (2041), a guide plate (2042), a spring block groove (2043), a first spring (2044), a spring block (2045), and a torsion reset shaft (2047); The spring block (2045) is connected to the spring block groove (2043) via a first spring (2044), and the spring block (2045) is slidably connected to the spring block groove (2043); the spring block groove (2043) is provided on one side of the guide plate (2042); the other end of the guide plate (2042) is rotatably connected to the lower part of the accommodating groove (2041) via a torsion reset shaft (2047); the accommodating groove (2041) is provided at the connection between the main track and the three sub-tracks; the two guide plates (2042) are arranged in a mirror image, and the two guide plates (2042) are respectively located at the connection between the two arc-shaped sub-tracks and the accommodating groove (2041).

3. A box-type fixed metal-enclosed ring network switchgear according to claim 2, characterized in that: The slider guide structure (204) further comprises a buckle groove (2046); The buckle groove (2046) is arranged on a side of the guide plate (2042) away from the nearest arc-shaped sub-track, and the buckle groove (2046) is adapted to a spring block (2045) on another guide plate (2042).

4. A box-type fixed metal-enclosed ring network switchgear according to claim 3, characterized in that: The wire pulling assembly (5) further comprises a limiting wheel (509), wherein the limiting wheel (509) is rotatably connected to the cabinet of the device body (1), and the limiting wheel (509) is located above the bent portions of the winding ropes (203) on both sides.

5. A box-type fixed metal-enclosed ring network switchgear according to claim 4, characterized in that: The locking assembly (6) comprises a locking plate (601), a connecting plate (602), and a second spring (603); The two second springs (603) are respectively installed on both sides of the top end of the connecting plate (602), one end of the two locking plates (601) is rotatably connected to the groove of the connecting plate (602), the outer side of the locking plate (601) is connected to the other end of the second spring (603), the two locking plates (601) form an annular locking member with an opening, the bottom end of the slider (202) is installed with a locking rod (205), the lower part and the upper part of the locking rod (205) are set as cylinders of different diameters, the cylinder at the lower part of the locking rod (205) is adapted to the annular locking member, and the cylinder at the upper part of the locking rod (205) is adapted to the opening of the annular locking member.

6. A box-type fixed metal-enclosed ring network switchgear according to claim 5, characterized in that: The locking assembly (6) further comprises a top block (604), a push block (605), and a third cylinder (606); The third cylinder (606) is fixed on the cabinet of the equipment body (1), the push block (605) is installed at the output end of the third cylinder (606), the top block (604) is attached to the front end of the push block (605), the connecting plate (602) is installed on the top block (604), and the side of the top block (604) that is attached to the push block (605) is set as an inclined surface, and the inclined surface is inclined along the positive direction of the Y axis and the negative direction of the Z axis.

7. A box-type fixed metal-enclosed ring network switchgear according to claim 6, characterized in that: The locking assembly (6) further comprises a limiting guide groove (607), a limiting guide rod (608), and a third spring (609); The limiting guide rod (608) is slidably connected in the limiting guide groove (607), and the limiting guide rod (608) is connected to the limiting guide groove (607) via a third spring (609), and the limiting guide groove (607) is arranged at the front end of the top block (604).

8. A box-type fixed metal-enclosed ring network switchgear according to claim 7, characterized in that: The cutting and closing assembly (7) comprises a frame (701), a fourth cylinder (702), a knife groove (703), a shearing knife (704), a connecting rod (705), a limit block (706), a closing frame (707), a self-locking slide block (708), and a slide groove (709); The slide groove (709) is arranged on one side of the frame (701); the self-locking slider (708) is slidably connected in the slide groove (709); the closed frame (707) is installed on the self-locking slider (708); the limit block (706) is installed on one end of the connecting rod (705), and the limit block (706) is located on the outside of the closed frame (707); the connecting rod (705) is slidably connected to the closed frame (707); the shearing knife (704) is installed on the other end of the connecting rod (705), and the shearing knife (704) is located on the inside of the closed frame (707); the knife groove (703) is arranged on the frame The inner bottom end of the frame (701) is connected to the knife groove (703) and is adapted to the shear knife (704). The fourth cylinder (702) is installed at the inner top end of the frame (701). The output end of the fourth cylinder (702) is slidably connected to the closing frame (707), and the output end of the fourth cylinder (702) is installed on the shear knife (704). The closing frame (707) and the frame (701) form a closed shell. The two closed shells are respectively attached to the fireproof box (401) and the lifting box door (403). The fireproof box (401), the lifting box door (403) and the closed shell are all made of heat-insulating and fire-proof materials.

9. A box-type fixed metal-enclosed ring network switchgear according to claim 8, characterized in that: The main track is provided with a track splitting portion (2012), the track splitting portion (2012) is located at the front end of the fireproof box (401), the bottom end of the track splitting portion (2012) is connected to a sixth cylinder (2013), the sixth cylinder (2013) is fixed on the cabinet of the equipment body (1), the front end of the fireproof box (401) is installed with a fifth cylinder (8), the output end of the fifth cylinder (8) is connected to one side of the closed frame (707) in the same plane.

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